blob: 67131c43f75dc68d615fdee33f57c930f679cee2 [file] [log] [blame]
// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-array.prototype.fill
description: >
Fills all the elements from a with a custom start index.
info: |
22.1.3.6 Array.prototype.fill (value [ , start [ , end ] ] )
...
8. If end is undefined, let relativeEnd be len; else let relativeEnd be
ToInteger(end).
9. ReturnIfAbrupt(relativeEnd).
10. If relativeEnd < 0, let final be max((len + relativeEnd),0); else let
final be min(relativeEnd, len).
...
includes: [compareArray.js]
---*/
assert(
compareArray([0, 0, 0].fill(8, 0, 1), [8, 0, 0]),
'Fill elements from custom end position'
);
assert(
compareArray([0, 0, 0].fill(8, 0, -1), [8, 8, 0]),
'negative end sets final position to max((this.length + relativeEnd), 0)'
);
assert(
compareArray([0, 0, 0].fill(8, 0, 5), [8, 8, 8]),
'end position is never higher than of this.length'
);