// Copyright 2011-2012 Norbert Lindenberg. All rights reserved. // Copyright 2012 Mozilla Corporation. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es5id: 11.1.2 description: Tests that Intl.NumberFormat can be subclassed. author: Norbert Lindenberg includes: [compareArray.js] ---*/ // get a number format and have it format an array of numbers for comparison with the subclass var locales = ["tlh", "id", "en"]; var a = [0, 1, -1, -123456.789, -Infinity, NaN]; var referenceNumberFormat = new Intl.NumberFormat(locales); var referenceFormatted = a.map(referenceNumberFormat.format); class MyNumberFormat extends Intl.NumberFormat { constructor(locales, options) { super(locales, options); // could initialize MyNumberFormat properties } // could add methods to MyNumberFormat.prototype } var format = new MyNumberFormat(locales); var actual = a.map(format.format); assert.compareArray(actual, referenceFormatted); reportCompare(0, 0);