15 lines
		
	
	
		
			481 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			15 lines
		
	
	
		
			481 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
'use strict';
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var strong = require('./_collection-strong');
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var validate = require('./_validate-collection');
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var SET = 'Set';
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// 23.2 Set Objects
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module.exports = require('./_collection')(SET, function (get) {
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  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
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}, {
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  // 23.2.3.1 Set.prototype.add(value)
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  add: function add(value) {
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    return strong.def(validate(this, SET), value = value === 0 ? 0 : value, value);
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  }
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}, strong);
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