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26 lines
899 B
JavaScript
26 lines
899 B
JavaScript
// Copyright (C) 2016 Rick Waldron. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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author: Rick Waldron
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esid: sec-assignment-operators-runtime-semantics-evaluation
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description: Compound Exponentiation Assignment Operator
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info: |
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AssignmentExpression:
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LeftHandSideExpression AssignmentOperator AssignmentExpression
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1. Let lref be the result of evaluating LeftHandSideExpression.
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2. Let lval be ? GetValue(lref).
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3. Let rref be the result of evaluating AssignmentExpression.
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4. Let rval be ? GetValue(rref).
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5. Let op be the @ where AssignmentOperator is @=.
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6. Let r be the result of applying op to lval and rval as if evaluating the expression lval op rval.
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7. Perform ? PutValue(lref, r).
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8. Return r.
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---*/
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var base = -3;
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assert.sameValue(base **= 3, -27, "(base **= 3) === -27; where base is -3");
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