diff --git a/test/staging/sm/DataView/get-set-index-range.js b/test/staging/sm/DataView/get-set-index-range.js
index 89f6209171..6eb232382f 100644
--- a/test/staging/sm/DataView/get-set-index-range.js
+++ b/test/staging/sm/DataView/get-set-index-range.js
@@ -8,6 +8,7 @@ description: |
   pending
 esid: pending
 ---*/
+
 var buffer = new ArrayBuffer(2);
 var view = new DataView(buffer);
 
@@ -30,16 +31,13 @@ for (let fun of ['getInt8', 'getInt16']) {
     assert.sameValue(view[fun](NaN), 0);
 }
 
-if ('$262.detachArrayBuffer' in this) {
-    // ToIndex is called before detachment check, so we can tell the difference
-    // between a ToIndex failure and a real out of bounds failure.
-    $262.detachArrayBuffer(buffer);
+// ToIndex is called before detachment check, so we can tell the difference
+// between a ToIndex failure and a real out of bounds failure.
+$262.detachArrayBuffer(buffer);
 
-    check(view);
-
-    assert.throws(TypeError, () => view.getInt8(0));
-    assert.throws(TypeError, () => view.setInt8(0, 0));
-    assert.throws(TypeError, () => view.getInt8(Math.pow(2, 53) - 1));
-    assert.throws(TypeError, () => view.setInt8(Math.pow(2, 53) - 1, 0));
-}
+check(view);
 
+assert.throws(TypeError, () => view.getInt8(0));
+assert.throws(TypeError, () => view.setInt8(0, 0));
+assert.throws(TypeError, () => view.getInt8(Math.pow(2, 53) - 1));
+assert.throws(TypeError, () => view.setInt8(Math.pow(2, 53) - 1, 0));
diff --git a/test/staging/sm/TypedArray/iterator-next-with-detached.js b/test/staging/sm/TypedArray/iterator-next-with-detached.js
index 42c2c049b1..21db6e262f 100644
--- a/test/staging/sm/TypedArray/iterator-next-with-detached.js
+++ b/test/staging/sm/TypedArray/iterator-next-with-detached.js
@@ -9,74 +9,70 @@ description: |
   pending
 esid: pending
 ---*/
+
 function checkResult(actual, expected)
 {
   assert.sameValue(actual.value, expected.value);
   assert.sameValue(actual.done, expected.done);
 }
 
-if (typeof $262.detachArrayBuffer === "function")
+var iteratorFunction = Uint8Array.prototype[Symbol.iterator];
+
+var thisGlobal = this;
+var otherGlobal = $262.createRealm().global;
+
+var thisNext = new Uint8Array()[Symbol.iterator]().next
+
+for (const constructor of typedArrayConstructors)
 {
-  var iteratorFunction = Uint8Array.prototype[Symbol.iterator];
+  assert.sameValue(new constructor()[Symbol.iterator]().next, thisNext);
 
+  var globals =
+    [
+     [thisGlobal, thisGlobal],
+     [thisGlobal, otherGlobal],
+     [otherGlobal, otherGlobal],
+     [otherGlobal, thisGlobal],
+    ];
 
-  var thisGlobal = this;
-  var otherGlobal = $262.createRealm().global;
-
-  var thisNext = new Uint8Array()[Symbol.iterator]().next
-
-  for (const constructor of typedArrayConstructors)
+  for (const [arrayGlobal, bufferGlobal] of globals)
   {
-    assert.sameValue(new constructor()[Symbol.iterator]().next, thisNext);
+    var arr, buffer, iterator;
 
-    var globals =
-      [
-       [thisGlobal, thisGlobal],
-       [thisGlobal, otherGlobal],
-       [otherGlobal, otherGlobal],
-       [otherGlobal, thisGlobal],
-      ];
-
-    for (const [arrayGlobal, bufferGlobal] of globals)
+    function arrayBufferIterator()
     {
-      var arr, buffer, iterator;
+      var byteLength = 2 * constructor.BYTES_PER_ELEMENT;
+      var buf = new bufferGlobal.ArrayBuffer(byteLength);
+      var tarray = new arrayGlobal[constructor.name](buf);
 
-      function arrayBufferIterator()
-      {
-        var byteLength = 2 * constructor.BYTES_PER_ELEMENT;
-        var buf = new bufferGlobal.ArrayBuffer(byteLength);
-        var tarray = new arrayGlobal[constructor.name](buf);
+      tarray[0] = 1;
+      tarray[1] = 2;
 
-        tarray[0] = 1;
-        tarray[1] = 2;
-
-        return [tarray, buf, Reflect.apply(iteratorFunction, tarray, [])];
-      }
-
-      [arr, buffer, iterator] = arrayBufferIterator();
-      checkResult(thisNext.call(iterator), {value: 1, done: false});
-      checkResult(thisNext.call(iterator), {value: 2, done: false});
-      checkResult(thisNext.call(iterator), {value: undefined, done: true});
-
-      // Test an exhausted iterator.
-      bufferGlobal.$262.detachArrayBuffer(buffer);
-      checkResult(thisNext.call(iterator), {value: undefined, done: true});
-
-      // Test an all-but-exhausted iterator.
-      [arr, buffer, iterator] = arrayBufferIterator();
-      checkResult(thisNext.call(iterator), {value: 1, done: false});
-      checkResult(thisNext.call(iterator), {value: 2, done: false});
-
-      bufferGlobal.$262.detachArrayBuffer(buffer);
-      assert.throws(TypeError, () => thisNext.call(iterator));
-
-      // Test an unexhausted iterator.
-      [arr, buffer, iterator] = arrayBufferIterator();
-      checkResult(thisNext.call(iterator), {value: 1, done: false});
-
-      bufferGlobal.$262.detachArrayBuffer(buffer);
-      assert.throws(TypeError, () => thisNext.call(iterator));
+      return [tarray, buf, Reflect.apply(iteratorFunction, tarray, [])];
     }
+
+    [arr, buffer, iterator] = arrayBufferIterator();
+    checkResult(thisNext.call(iterator), {value: 1, done: false});
+    checkResult(thisNext.call(iterator), {value: 2, done: false});
+    checkResult(thisNext.call(iterator), {value: undefined, done: true});
+
+    // Test an exhausted iterator.
+    bufferGlobal.$262.detachArrayBuffer(buffer);
+    checkResult(thisNext.call(iterator), {value: undefined, done: true});
+
+    // Test an all-but-exhausted iterator.
+    [arr, buffer, iterator] = arrayBufferIterator();
+    checkResult(thisNext.call(iterator), {value: 1, done: false});
+    checkResult(thisNext.call(iterator), {value: 2, done: false});
+
+    bufferGlobal.$262.detachArrayBuffer(buffer);
+    assert.throws(TypeError, () => thisNext.call(iterator));
+
+    // Test an unexhausted iterator.
+    [arr, buffer, iterator] = arrayBufferIterator();
+    checkResult(thisNext.call(iterator), {value: 1, done: false});
+
+    bufferGlobal.$262.detachArrayBuffer(buffer);
+    assert.throws(TypeError, () => thisNext.call(iterator));
   }
 }
-
diff --git a/test/staging/sm/TypedArray/set-detached.js b/test/staging/sm/TypedArray/set-detached.js
index c84d776c46..8a9ca5dafd 100644
--- a/test/staging/sm/TypedArray/set-detached.js
+++ b/test/staging/sm/TypedArray/set-detached.js
@@ -8,6 +8,7 @@ description: |
   pending
 esid: pending
 ---*/
+
 // Tests for detached ArrayBuffer checks in %TypedArray%.prototype.set(array|typedArray, offset).
 
 function* createTypedArrays(lengths = [0, 1, 4, 4096]) {
@@ -19,255 +20,252 @@ function* createTypedArrays(lengths = [0, 1, 4, 4096]) {
     }
 }
 
-if (typeof $262.detachArrayBuffer === "function") {
-    class ExpectedError extends Error {}
+class ExpectedError extends Error {}
 
-    // No detached check on function entry.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        $262.detachArrayBuffer(buffer);
+// No detached check on function entry.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    $262.detachArrayBuffer(buffer);
 
-        assert.throws(ExpectedError, () => typedArray.set(null, {
+    assert.throws(ExpectedError, () => typedArray.set(null, {
+        valueOf() {
+            throw new ExpectedError();
+        }
+    }));
+}
+
+// Check for detached buffer after calling ToInteger(offset). Test with:
+// - valid offset,
+// - too large offset,
+// - and negative offset.
+for (let [offset, error] of [[0, TypeError], [1000000, TypeError], [-1, RangeError]]) {
+    for (let source of [[], [0], new Int32Array(0), new Int32Array(1)]) {
+        for (let {typedArray, buffer} of createTypedArrays()) {
+            assert.throws(error, () => typedArray.set(source, {
+                valueOf() {
+                    $262.detachArrayBuffer(buffer);
+                    return offset;
+                }
+            }));
+        }
+    }
+}
+
+// Tests when called with detached typed array as source.
+for (let {typedArray} of createTypedArrays()) {
+    for (let {typedArray: source, buffer: sourceBuffer} of createTypedArrays()) {
+        $262.detachArrayBuffer(sourceBuffer);
+
+        assert.throws(ExpectedError, () => typedArray.set(source, {
             valueOf() {
                 throw new ExpectedError();
             }
         }));
     }
+}
 
-    // Check for detached buffer after calling ToInteger(offset). Test with:
-    // - valid offset,
-    // - too large offset,
-    // - and negative offset.
-    for (let [offset, error] of [[0, TypeError], [1000000, TypeError], [-1, RangeError]]) {
-        for (let source of [[], [0], new Int32Array(0), new Int32Array(1)]) {
-            for (let {typedArray, buffer} of createTypedArrays()) {
-                assert.throws(error, () => typedArray.set(source, {
-                    valueOf() {
-                        $262.detachArrayBuffer(buffer);
-                        return offset;
-                    }
-                }));
-            }
-        }
-    }
-
-    // Tests when called with detached typed array as source.
+// Check when detaching source buffer in ToInteger(offset). Test with:
+// - valid offset,
+// - too large offset,
+// - and negative offset.
+for (let [offset, error] of [[0, TypeError], [1000000, TypeError], [-1, RangeError]]) {
     for (let {typedArray} of createTypedArrays()) {
         for (let {typedArray: source, buffer: sourceBuffer} of createTypedArrays()) {
-            $262.detachArrayBuffer(sourceBuffer);
-
-            assert.throws(ExpectedError, () => typedArray.set(source, {
+            assert.throws(error, () => typedArray.set(source, {
                 valueOf() {
-                    throw new ExpectedError();
+                    $262.detachArrayBuffer(sourceBuffer);
+                    return offset;
                 }
             }));
         }
     }
-
-    // Check when detaching source buffer in ToInteger(offset). Test with:
-    // - valid offset,
-    // - too large offset,
-    // - and negative offset.
-    for (let [offset, error] of [[0, TypeError], [1000000, TypeError], [-1, RangeError]]) {
-        for (let {typedArray} of createTypedArrays()) {
-            for (let {typedArray: source, buffer: sourceBuffer} of createTypedArrays()) {
-                assert.throws(error, () => typedArray.set(source, {
-                    valueOf() {
-                        $262.detachArrayBuffer(sourceBuffer);
-                        return offset;
-                    }
-                }));
-            }
-        }
-    }
-
-    // Test when target and source use the same underlying buffer and
-    // ToInteger(offset) detaches the buffer. Test with:
-    // - same typed array,
-    // - different typed array, but same element type,
-    // - and different element type.
-    for (let src of [ta => ta, ta => new Int32Array(ta.buffer), ta => new Float32Array(ta.buffer)]) {
-        for (let {typedArray, buffer} of createTypedArrays()) {
-            let source = src(typedArray);
-            assert.throws(TypeError, () => typedArray.set(source, {
-                valueOf() {
-                    $262.detachArrayBuffer(buffer);
-                    return 0;
-                }
-            }));
-        }
-    }
-
-    // Test when Get(src, "length") detaches the buffer, but srcLength is 0.
-    // Also use different offsets to ensure bounds checks use the typed array's
-    // length value from before detaching the buffer.
-    for (let offset of [() => 0, ta => Math.min(1, ta.length), ta => Math.max(0, ta.length - 1)]) {
-        for (let {typedArray, buffer} of createTypedArrays()) {
-            let source = {
-                get length() {
-                    $262.detachArrayBuffer(buffer);
-                    return 0;
-                }
-            };
-            typedArray.set(source, offset(typedArray));
-        }
-    }
-
-    // Test when ToLength(Get(src, "length")) detaches the buffer, but
-    // srcLength is 0. Also use different offsets to ensure bounds checks use
-    // the typed array's length value from before detaching the buffer.
-    for (let offset of [() => 0, ta => Math.min(1, ta.length), ta => Math.max(0, ta.length - 1)]) {
-        for (let {typedArray, buffer} of createTypedArrays()) {
-            let source = {
-                length: {
-                    valueOf() {
-                        $262.detachArrayBuffer(buffer);
-                        return 0;
-                    }
-                }
-            };
-            typedArray.set(source, offset(typedArray));
-        }
-    }
-
-    // Test no TypeError is thrown when the typed array is detached and
-    // srcLength > 0.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let source = {
-            length: {
-                valueOf() {
-                    $262.detachArrayBuffer(buffer);
-                    return 1;
-                }
-            }
-        };
-        if (typedArray.length === 0) {
-            assert.throws(RangeError, () => typedArray.set(source));
-        } else {
-            typedArray.set(source);
-        }
-    }
-
-    // Same as above, but with side-effect when executing Get(src, "0").
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let source = {
-            get 0() {
-                throw new ExpectedError();
-            },
-            length: {
-                valueOf() {
-                    $262.detachArrayBuffer(buffer);
-                    return 1;
-                }
-            }
-        };
-        let err = typedArray.length === 0 ? RangeError : ExpectedError;
-        assert.throws(err, () => typedArray.set(source));
-    }
-
-    // Same as above, but with side-effect when executing ToNumber(Get(src, "0")).
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let source = {
-            get 0() {
-                return {
-                    valueOf() {
-                        throw new ExpectedError();
-                    }
-                };
-            },
-            length: {
-                valueOf() {
-                    $262.detachArrayBuffer(buffer);
-                    return 1;
-                }
-            }
-        };
-        let err = typedArray.length === 0 ? RangeError : ExpectedError;
-        assert.throws(err, () => typedArray.set(source));
-    }
-
-    // Side-effects when getting the source elements detach the buffer.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let source = Object.defineProperties([], {
-            0: {
-                get() {
-                    $262.detachArrayBuffer(buffer);
-                    return 1;
-                }
-            }
-        });
-        if (typedArray.length === 0) {
-            assert.throws(RangeError, () => typedArray.set(source));
-        } else {
-            typedArray.set(source);
-        }
-    }
-
-    // Side-effects when getting the source elements detach the buffer. Also
-    // ensure other elements are accessed.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let accessed = false;
-        let source = Object.defineProperties([], {
-            0: {
-                get() {
-                    $262.detachArrayBuffer(buffer);
-                    return 1;
-                }
-            },
-            1: {
-                get() {
-                    assert.sameValue(accessed, false);
-                    accessed = true;
-                    return 2;
-                }
-            }
-        });
-        if (typedArray.length <= 1) {
-            assert.throws(RangeError, () => typedArray.set(source));
-        } else {
-            assert.sameValue(accessed, false);
-            typedArray.set(source);
-            assert.sameValue(accessed, true);
-        }
-    }
-
-    // Side-effects when converting the source elements detach the buffer.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let source = [{
-            valueOf() {
-                $262.detachArrayBuffer(buffer);
-                return 1;
-            }
-        }];
-        if (typedArray.length === 0) {
-            assert.throws(RangeError, () => typedArray.set(source));
-        } else {
-            typedArray.set(source);
-        }
-    }
-
-    // Side-effects when converting the source elements detach the buffer. Also
-    // ensure other elements are accessed.
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        let accessed = false;
-        let source = [{
-            valueOf() {
-                $262.detachArrayBuffer(buffer);
-                return 1;
-            }
-        }, {
-            valueOf() {
-                assert.sameValue(accessed, false);
-                accessed = true;
-                return 2;
-            }
-        }];
-        if (typedArray.length <= 1) {
-            assert.throws(RangeError, () => typedArray.set(source));
-        } else {
-            assert.sameValue(accessed, false);
-            typedArray.set(source);
-            assert.sameValue(accessed, true);
-        }
-    }
 }
 
+// Test when target and source use the same underlying buffer and
+// ToInteger(offset) detaches the buffer. Test with:
+// - same typed array,
+// - different typed array, but same element type,
+// - and different element type.
+for (let src of [ta => ta, ta => new Int32Array(ta.buffer), ta => new Float32Array(ta.buffer)]) {
+    for (let {typedArray, buffer} of createTypedArrays()) {
+        let source = src(typedArray);
+        assert.throws(TypeError, () => typedArray.set(source, {
+            valueOf() {
+                $262.detachArrayBuffer(buffer);
+                return 0;
+            }
+        }));
+    }
+}
+
+// Test when Get(src, "length") detaches the buffer, but srcLength is 0.
+// Also use different offsets to ensure bounds checks use the typed array's
+// length value from before detaching the buffer.
+for (let offset of [() => 0, ta => Math.min(1, ta.length), ta => Math.max(0, ta.length - 1)]) {
+    for (let {typedArray, buffer} of createTypedArrays()) {
+        let source = {
+            get length() {
+                $262.detachArrayBuffer(buffer);
+                return 0;
+            }
+        };
+        typedArray.set(source, offset(typedArray));
+    }
+}
+
+// Test when ToLength(Get(src, "length")) detaches the buffer, but
+// srcLength is 0. Also use different offsets to ensure bounds checks use
+// the typed array's length value from before detaching the buffer.
+for (let offset of [() => 0, ta => Math.min(1, ta.length), ta => Math.max(0, ta.length - 1)]) {
+    for (let {typedArray, buffer} of createTypedArrays()) {
+        let source = {
+            length: {
+                valueOf() {
+                    $262.detachArrayBuffer(buffer);
+                    return 0;
+                }
+            }
+        };
+        typedArray.set(source, offset(typedArray));
+    }
+}
+
+// Test no TypeError is thrown when the typed array is detached and
+// srcLength > 0.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let source = {
+        length: {
+            valueOf() {
+                $262.detachArrayBuffer(buffer);
+                return 1;
+            }
+        }
+    };
+    if (typedArray.length === 0) {
+        assert.throws(RangeError, () => typedArray.set(source));
+    } else {
+        typedArray.set(source);
+    }
+}
+
+// Same as above, but with side-effect when executing Get(src, "0").
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let source = {
+        get 0() {
+            throw new ExpectedError();
+        },
+        length: {
+            valueOf() {
+                $262.detachArrayBuffer(buffer);
+                return 1;
+            }
+        }
+    };
+    let err = typedArray.length === 0 ? RangeError : ExpectedError;
+    assert.throws(err, () => typedArray.set(source));
+}
+
+// Same as above, but with side-effect when executing ToNumber(Get(src, "0")).
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let source = {
+        get 0() {
+            return {
+                valueOf() {
+                    throw new ExpectedError();
+                }
+            };
+        },
+        length: {
+            valueOf() {
+                $262.detachArrayBuffer(buffer);
+                return 1;
+            }
+        }
+    };
+    let err = typedArray.length === 0 ? RangeError : ExpectedError;
+    assert.throws(err, () => typedArray.set(source));
+}
+
+// Side-effects when getting the source elements detach the buffer.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let source = Object.defineProperties([], {
+        0: {
+            get() {
+                $262.detachArrayBuffer(buffer);
+                return 1;
+            }
+        }
+    });
+    if (typedArray.length === 0) {
+        assert.throws(RangeError, () => typedArray.set(source));
+    } else {
+        typedArray.set(source);
+    }
+}
+
+// Side-effects when getting the source elements detach the buffer. Also
+// ensure other elements are accessed.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let accessed = false;
+    let source = Object.defineProperties([], {
+        0: {
+            get() {
+                $262.detachArrayBuffer(buffer);
+                return 1;
+            }
+        },
+        1: {
+            get() {
+                assert.sameValue(accessed, false);
+                accessed = true;
+                return 2;
+            }
+        }
+    });
+    if (typedArray.length <= 1) {
+        assert.throws(RangeError, () => typedArray.set(source));
+    } else {
+        assert.sameValue(accessed, false);
+        typedArray.set(source);
+        assert.sameValue(accessed, true);
+    }
+}
+
+// Side-effects when converting the source elements detach the buffer.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let source = [{
+        valueOf() {
+            $262.detachArrayBuffer(buffer);
+            return 1;
+        }
+    }];
+    if (typedArray.length === 0) {
+        assert.throws(RangeError, () => typedArray.set(source));
+    } else {
+        typedArray.set(source);
+    }
+}
+
+// Side-effects when converting the source elements detach the buffer. Also
+// ensure other elements are accessed.
+for (let {typedArray, buffer} of createTypedArrays()) {
+    let accessed = false;
+    let source = [{
+        valueOf() {
+            $262.detachArrayBuffer(buffer);
+            return 1;
+        }
+    }, {
+        valueOf() {
+            assert.sameValue(accessed, false);
+            accessed = true;
+            return 2;
+        }
+    }];
+    if (typedArray.length <= 1) {
+        assert.throws(RangeError, () => typedArray.set(source));
+    } else {
+        assert.sameValue(accessed, false);
+        typedArray.set(source);
+        assert.sameValue(accessed, true);
+    }
+}
diff --git a/test/staging/sm/TypedArray/set-with-receiver.js b/test/staging/sm/TypedArray/set-with-receiver.js
index 1bc3c48967..f496be8392 100644
--- a/test/staging/sm/TypedArray/set-with-receiver.js
+++ b/test/staging/sm/TypedArray/set-with-receiver.js
@@ -24,9 +24,7 @@ for (var constructor of anyTypedArrayConstructors) {
     assert.sameValue(Object.hasOwn(receiver, 10), false);
 
     // Detached
-    if (typeof $262.detachArrayBuffer === "function" &&
-        !isSharedConstructor(constructor))
-    {
+    if (!isSharedConstructor(constructor)) {
         $262.detachArrayBuffer(ta.buffer)
 
         assert.sameValue(ta[0], undefined);
diff --git a/test/staging/sm/TypedArray/set-wrapped.js b/test/staging/sm/TypedArray/set-wrapped.js
index 1adc154818..a158247207 100644
--- a/test/staging/sm/TypedArray/set-wrapped.js
+++ b/test/staging/sm/TypedArray/set-wrapped.js
@@ -9,6 +9,7 @@ description: |
   pending
 esid: pending
 ---*/
+
 // Test %TypedArray%.prototype.set(typedArray, offset) when called with wrapped
 // typed array.
 
@@ -35,53 +36,52 @@ for (var TA of anyTypedArrayConstructors) {
 }
 
 // Detachment checks are also applied correctly for wrapped typed arrays.
-if (typeof $262.detachArrayBuffer === "function") {
-    // Create typed array from different global (explicit constructor call).
-    for (var TA of typedArrayConstructors) {
-        var target = new TA(4);
-        var source = new otherGlobal[TA.name](1);
-        taintLengthProperty(source);
 
-        // Called with wrapped typed array, array buffer already detached.
-        otherGlobal.$262.detachArrayBuffer(source.buffer);
-        assert.throws(TypeError, () => target.set(source));
+// Create typed array from different global (explicit constructor call).
+for (var TA of typedArrayConstructors) {
+    var target = new TA(4);
+    var source = new otherGlobal[TA.name](1);
+    taintLengthProperty(source);
 
-        var source = new otherGlobal[TA.name](1);
-        taintLengthProperty(source);
+    // Called with wrapped typed array, array buffer already detached.
+    otherGlobal.$262.detachArrayBuffer(source.buffer);
+    assert.throws(TypeError, () => target.set(source));
 
-        // Called with wrapped typed array, array buffer detached when
-        // processing offset parameter.
-        var offset = {
-            valueOf() {
-                otherGlobal.$262.detachArrayBuffer(source.buffer);
-                return 0;
-            }
-        };
-        assert.throws(TypeError, () => target.set(source, offset));
-    }
+    var source = new otherGlobal[TA.name](1);
+    taintLengthProperty(source);
 
-    // Create typed array from different global (implictly created when
-    // ArrayBuffer is a CCW).
-    for (var TA of typedArrayConstructors) {
-        var target = new TA(4);
-        var source = new TA(new otherGlobal.ArrayBuffer(1 * TA.BYTES_PER_ELEMENT));
-        taintLengthProperty(source);
-
-        // Called with wrapped typed array, array buffer already detached.
-        otherGlobal.$262.detachArrayBuffer(source.buffer);
-        assert.throws(TypeError, () => target.set(source));
-
-        var source = new TA(new otherGlobal.ArrayBuffer(1 * TA.BYTES_PER_ELEMENT));
-        taintLengthProperty(source);
-
-        // Called with wrapped typed array, array buffer detached when
-        // processing offset parameter.
-        var offset = {
-            valueOf() {
-                otherGlobal.$262.detachArrayBuffer(source.buffer);
-                return 0;
-            }
-        };
-        assert.throws(TypeError, () => target.set(source, offset));
-    }
+    // Called with wrapped typed array, array buffer detached when
+    // processing offset parameter.
+    var offset = {
+        valueOf() {
+            otherGlobal.$262.detachArrayBuffer(source.buffer);
+            return 0;
+        }
+    };
+    assert.throws(TypeError, () => target.set(source, offset));
+}
+
+// Create typed array from different global (implictly created when
+// ArrayBuffer is a CCW).
+for (var TA of typedArrayConstructors) {
+    var target = new TA(4);
+    var source = new TA(new otherGlobal.ArrayBuffer(1 * TA.BYTES_PER_ELEMENT));
+    taintLengthProperty(source);
+
+    // Called with wrapped typed array, array buffer already detached.
+    otherGlobal.$262.detachArrayBuffer(source.buffer);
+    assert.throws(TypeError, () => target.set(source));
+
+    var source = new TA(new otherGlobal.ArrayBuffer(1 * TA.BYTES_PER_ELEMENT));
+    taintLengthProperty(source);
+
+    // Called with wrapped typed array, array buffer detached when
+    // processing offset parameter.
+    var offset = {
+        valueOf() {
+            otherGlobal.$262.detachArrayBuffer(source.buffer);
+            return 0;
+        }
+    };
+    assert.throws(TypeError, () => target.set(source, offset));
 }
diff --git a/test/staging/sm/TypedArray/slice-detached.js b/test/staging/sm/TypedArray/slice-detached.js
index c7a72cf9df..97d52a7ffc 100644
--- a/test/staging/sm/TypedArray/slice-detached.js
+++ b/test/staging/sm/TypedArray/slice-detached.js
@@ -8,6 +8,7 @@ description: |
   pending
 esid: pending
 ---*/
+
 // Tests for detached ArrayBuffer checks in %TypedArray%.prototype.slice ( start, end ).
 
 function* createTypedArrays(lengths = [0, 1, 4, 4096]) {
@@ -27,85 +28,82 @@ function* createTypedArrays(lengths = [0, 1, 4, 4096]) {
     }
 }
 
-if (typeof $262.detachArrayBuffer === "function") {
-    // ArrayBuffer is detached when entering slice().
-    for (let {typedArray, buffer} of createTypedArrays()) {
-        $262.detachArrayBuffer(buffer());
-        assert.throws(TypeError, () => {
-            typedArray.slice(0);
-        }, "ArrayBuffer is detached on function entry");
-    }
-
-    // ArrayBuffer is detached when computing ToInteger(start).
-    for (let {typedArray, length, buffer} of createTypedArrays()) {
-        let detached = false;
-        let start = {
-            valueOf() {
-                assert.sameValue(detached, false);
-                $262.detachArrayBuffer(buffer());
-                assert.sameValue(detached, false);
-                detached = true;
-                return 0;
-            }
-        };
-
-        // Doesn't throw an error when no bytes are copied.
-        if (length === 0) {
-            typedArray.slice(start);
-        } else {
-            assert.throws(TypeError, () => {
-                typedArray.slice(start);
-            }, "ArrayBuffer is detached in ToInteger(start)");
-        }
-        assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
-    }
-
-    // ArrayBuffer is detached when computing ToInteger(end).
-    for (let {typedArray, length, buffer} of createTypedArrays()) {
-        let detached = false;
-        let end = {
-            valueOf() {
-                assert.sameValue(detached, false);
-                $262.detachArrayBuffer(buffer());
-                assert.sameValue(detached, false);
-                detached = true;
-                return length;
-            }
-        };
-
-        // Doesn't throw an error when no bytes are copied.
-        if (length === 0) {
-            typedArray.slice(0, end);
-        } else {
-            assert.throws(TypeError, () => {
-                typedArray.slice(0, end);
-            }, "ArrayBuffer is detached in ToInteger(end)");
-        }
-        assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
-    }
-
-    // ArrayBuffer is detached in species constructor.
-    for (let {typedArray, length, buffer} of createTypedArrays()) {
-        let detached = false;
-        typedArray.constructor = {
-            [Symbol.species]: function(...args) {
-                assert.sameValue(detached, false);
-                $262.detachArrayBuffer(buffer());
-                assert.sameValue(detached, false);
-                detached = true;
-                return new Int32Array(...args);
-            }
-        };
-
-        // Doesn't throw an error when no bytes are copied.
-        if (length === 0) {
-            typedArray.slice(0);
-        } else {
-            assert.throws(TypeError, () => {
-                typedArray.slice(0);
-            }, "ArrayBuffer is detached in TypedArraySpeciesCreate(...)");
-        }
-        assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
-    }
+// ArrayBuffer is detached when entering slice().
+for (let {typedArray, buffer} of createTypedArrays()) {
+    $262.detachArrayBuffer(buffer());
+    assert.throws(TypeError, () => {
+        typedArray.slice(0);
+    }, "ArrayBuffer is detached on function entry");
 }
 
+// ArrayBuffer is detached when computing ToInteger(start).
+for (let {typedArray, length, buffer} of createTypedArrays()) {
+    let detached = false;
+    let start = {
+        valueOf() {
+            assert.sameValue(detached, false);
+            $262.detachArrayBuffer(buffer());
+            assert.sameValue(detached, false);
+            detached = true;
+            return 0;
+        }
+    };
+
+    // Doesn't throw an error when no bytes are copied.
+    if (length === 0) {
+        typedArray.slice(start);
+    } else {
+        assert.throws(TypeError, () => {
+            typedArray.slice(start);
+        }, "ArrayBuffer is detached in ToInteger(start)");
+    }
+    assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
+}
+
+// ArrayBuffer is detached when computing ToInteger(end).
+for (let {typedArray, length, buffer} of createTypedArrays()) {
+    let detached = false;
+    let end = {
+        valueOf() {
+            assert.sameValue(detached, false);
+            $262.detachArrayBuffer(buffer());
+            assert.sameValue(detached, false);
+            detached = true;
+            return length;
+        }
+    };
+
+    // Doesn't throw an error when no bytes are copied.
+    if (length === 0) {
+        typedArray.slice(0, end);
+    } else {
+        assert.throws(TypeError, () => {
+            typedArray.slice(0, end);
+        }, "ArrayBuffer is detached in ToInteger(end)");
+    }
+    assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
+}
+
+// ArrayBuffer is detached in species constructor.
+for (let {typedArray, length, buffer} of createTypedArrays()) {
+    let detached = false;
+    typedArray.constructor = {
+        [Symbol.species]: function(...args) {
+            assert.sameValue(detached, false);
+            $262.detachArrayBuffer(buffer());
+            assert.sameValue(detached, false);
+            detached = true;
+            return new Int32Array(...args);
+        }
+    };
+
+    // Doesn't throw an error when no bytes are copied.
+    if (length === 0) {
+        typedArray.slice(0);
+    } else {
+        assert.throws(TypeError, () => {
+            typedArray.slice(0);
+        }, "ArrayBuffer is detached in TypedArraySpeciesCreate(...)");
+    }
+    assert.sameValue(detached, true, "$262.detachArrayBuffer was called");
+}
diff --git a/test/staging/sm/TypedArray/sort_errors.js b/test/staging/sm/TypedArray/sort_errors.js
index 107b20648f..aa0faa2fb3 100644
--- a/test/staging/sm/TypedArray/sort_errors.js
+++ b/test/staging/sm/TypedArray/sort_errors.js
@@ -8,18 +8,17 @@ description: |
   pending
 esid: pending
 ---*/
+
 // Ensure that TypedArrays throw when attempting to sort a detached ArrayBuffer
-if (typeof $262.detachArrayBuffer === "function") {
-    assert.throws(TypeError, () => {
-        let buffer = new ArrayBuffer(32);
-        let array  = new Int32Array(buffer);
-        $262.detachArrayBuffer(buffer);
-        array.sort();
-    });
-}
+assert.throws(TypeError, () => {
+    let buffer = new ArrayBuffer(32);
+    let array  = new Int32Array(buffer);
+    $262.detachArrayBuffer(buffer);
+    array.sort();
+});
 
 // Ensure detaching buffer in comparator doesn't throw an error.
-if (typeof $262.detachArrayBuffer === "function") {
+{
     let detached = false;
     let ta = new Int32Array(3);
     ta.sort(function(a, b) {
@@ -43,7 +42,7 @@ let otherGlobal = $262.createRealm().global;
 }
 
 // Ensure detaching buffer in comparator doesn't throw an error when the typed array is wrapped.
-if (typeof $262.detachArrayBuffer === "function") {
+{
     let detached = false;
     let ta = new Int32Array(3);
     otherGlobal.Int32Array.prototype.sort.call(ta, function(a,b) {
diff --git a/test/staging/sm/TypedArray/subarray.js b/test/staging/sm/TypedArray/subarray.js
index 4af2387c99..23793dc2d3 100644
--- a/test/staging/sm/TypedArray/subarray.js
+++ b/test/staging/sm/TypedArray/subarray.js
@@ -9,30 +9,27 @@ description: |
   pending
 esid: pending
 ---*/
-// Bug 1291003
-if (typeof $262.detachArrayBuffer === "function") {
-    for (let constructor of typedArrayConstructors) {
-        const elementSize = constructor.BYTES_PER_ELEMENT;
 
-        let targetOffset;
-        let buffer = new ArrayBuffer(2 * elementSize);
-        let typedArray = new constructor(buffer, 1 * elementSize, 1);
-        typedArray.constructor = {
-            [Symbol.species]: function(ab, offset, length) {
-                targetOffset = offset;
-                return new constructor(1);
-            }
-        };
+for (let constructor of typedArrayConstructors) {
+    const elementSize = constructor.BYTES_PER_ELEMENT;
 
-        let beginIndex = {
-            valueOf() {
-                $262.detachArrayBuffer(buffer);
-                return 0;
-            }
-        };
-        typedArray.subarray(beginIndex);
+    let targetOffset;
+    let buffer = new ArrayBuffer(2 * elementSize);
+    let typedArray = new constructor(buffer, 1 * elementSize, 1);
+    typedArray.constructor = {
+        [Symbol.species]: function(ab, offset, length) {
+            targetOffset = offset;
+            return new constructor(1);
+        }
+    };
 
-        assert.sameValue(targetOffset, 1 * elementSize);
-    }
+    let beginIndex = {
+        valueOf() {
+            $262.detachArrayBuffer(buffer);
+            return 0;
+        }
+    };
+    typedArray.subarray(beginIndex);
+
+    assert.sameValue(targetOffset, 1 * elementSize);
 }
-
diff --git a/test/staging/sm/TypedArray/toLocaleString-detached.js b/test/staging/sm/TypedArray/toLocaleString-detached.js
index 09421bf1c6..47240d6af5 100644
--- a/test/staging/sm/TypedArray/toLocaleString-detached.js
+++ b/test/staging/sm/TypedArray/toLocaleString-detached.js
@@ -9,39 +9,37 @@ description: |
   pending
 esid: pending
 ---*/
-if (typeof $262.detachArrayBuffer === "function") {
-    const originalNumberToLocaleString = Number.prototype.toLocaleString;
 
-    // Throws if array buffer is detached.
-    for (let constructor of typedArrayConstructors) {
-        let typedArray = new constructor(42);
-        $262.detachArrayBuffer(typedArray.buffer);
-        assert.throws(TypeError, () => typedArray.toLocaleString());
-    }
+const originalNumberToLocaleString = Number.prototype.toLocaleString;
 
-    // Doesn't throw a TypeError if detached in Number.prototype.toLocaleString.
-    for (let constructor of typedArrayConstructors) {
-        Number.prototype.toLocaleString = function() {
-            "use strict";
-            if (!detached) {
-                $262.detachArrayBuffer(typedArray.buffer);
-                detached = true;
-            }
-            return this;
-        };
-
-        // No error for single element arrays.
-        let detached = false;
-        let typedArray = new constructor(1);
-        assert.sameValue(typedArray.toLocaleString(), "0");
-        assert.sameValue(detached, true);
-
-        // And no error if more than one element is present.
-        detached = false;
-        typedArray = new constructor(2);
-        assert.sameValue(typedArray.toLocaleString(), "0,");
-        assert.sameValue(detached, true);
-    }
-    Number.prototype.toLocaleString = originalNumberToLocaleString;
+// Throws if array buffer is detached.
+for (let constructor of typedArrayConstructors) {
+    let typedArray = new constructor(42);
+    $262.detachArrayBuffer(typedArray.buffer);
+    assert.throws(TypeError, () => typedArray.toLocaleString());
 }
 
+// Doesn't throw a TypeError if detached in Number.prototype.toLocaleString.
+for (let constructor of typedArrayConstructors) {
+    Number.prototype.toLocaleString = function() {
+        "use strict";
+        if (!detached) {
+            $262.detachArrayBuffer(typedArray.buffer);
+            detached = true;
+        }
+        return this;
+    };
+
+    // No error for single element arrays.
+    let detached = false;
+    let typedArray = new constructor(1);
+    assert.sameValue(typedArray.toLocaleString(), "0");
+    assert.sameValue(detached, true);
+
+    // And no error if more than one element is present.
+    detached = false;
+    typedArray = new constructor(2);
+    assert.sameValue(typedArray.toLocaleString(), "0,");
+    assert.sameValue(detached, true);
+}
+Number.prototype.toLocaleString = originalNumberToLocaleString;