Source code

Revision control

Copy as Markdown

Other Tools

// Copyright (C) 2017 Daniel Ehrenberg. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-initializenumberformat
description: >
Monkey-patching Object.prototype does not change the default
options for NumberFormat as a null prototype is used.
info: |
InitializeNumberFormat ( numberFormat, locales, options )
1. If _options_ is *undefined*, then
1. Let _options_ be ObjectCreate(*null*).
---*/
let defaultMaximumFractionDigits =
new Intl.NumberFormat("en").resolvedOptions().maximumFractionDigits;
Object.prototype.maximumFractionDigits = 1;
let formatter = new Intl.NumberFormat("en");
assert.sameValue(formatter.resolvedOptions().maximumFractionDigits,
defaultMaximumFractionDigits);
reportCompare(0, 0);