// Copyright 2015 Microsoft Corporation. All rights reserved. // This code is governed by the license found in the LICENSE file. /*--- description: Source array with boundary values es6id: 22.1.2.1 ---*/ var array = [ Number.MAX_VALUE, Number.MIN_VALUE, Number.NaN, Number.NEGATIVE_INFINITY, Number.POSITIVE_INFINITY ]; var arrayIndex = -1; function mapFn(value, index) { this.arrayIndex++; assert.sameValue(value, array[this.arrayIndex], "Value mismatch in mapFn at index " + index + "."); assert.sameValue(index, this.arrayIndex, "Index mismatch in mapFn."); return value; } var a = Array.from(array, mapFn, this); assert.sameValue(a.length, array.length, "Length mismatch."); assert.sameValue(a[0], Number.MAX_VALUE, "Element mismatch for mapped array at index 0."); assert.sameValue(a[1], Number.MIN_VALUE, "Element mismatch for mapped array at index 1."); assert.sameValue(a[2], Number.NaN, "Element mismatch for mapped array at index 2."); assert.sameValue(a[3], Number.NEGATIVE_INFINITY, "Element mismatch for mapped array at index 3."); assert.sameValue(a[4], Number.POSITIVE_INFINITY, "Element mismatch for mapped array at index 4.");