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