'use strict'; 
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var $ = require('../internals/export'); 
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var aWeakMap = require('../internals/a-weak-map'); 
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var remove = require('../internals/weak-map-helpers').remove; 
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// `WeakMap.prototype.deleteAll` method 
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// https://github.com/tc39/proposal-collection-methods 
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$({ target: 'WeakMap', proto: true, real: true, forced: true }, { 
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  deleteAll: function deleteAll(/* ...elements */) { 
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    var collection = aWeakMap(this); 
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    var allDeleted = true; 
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    var wasDeleted; 
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    for (var k = 0, len = arguments.length; k < len; k++) { 
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      wasDeleted = remove(collection, arguments[k]); 
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      allDeleted = allDeleted && wasDeleted; 
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    } return !!allDeleted; 
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  } 
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}); 
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