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// Copyright 2015 Microsoft Corporation. All rights reserved.
// This code is governed by the license found in the LICENSE file.
/*---
description: >
Elements deleted after the call started and before visited are not
visited
esid: sec-array.from
---*/
var originalArray = [0, 1, -2, 4, -8, 16];
var array = [0, 1, -2, 4, -8, 16];
var a = [];
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.");
array.splice(array.length - 1, 1);
return 127;
}
a = Array.from(array, mapFn, this);
assert.sameValue(a.length, originalArray.length / 2, "Length mismatch. Old array : " + (originalArray.length / 2) + ". array : " + a.length + ".");
for (var j = 0; j < originalArray.length / 2; j++) {
assert.sameValue(a[j], 127, "Element mismatch for mapped array at index " + j + ".");
}
reportCompare(0, 0);
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