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18 lines
491 B
18 lines
491 B
'use strict'; |
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var callable = require('es5-ext/object/valid-callable') |
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, forOf = require('es6-iterator/for-of') |
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, isSet = require('../is-set') |
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, Set = require('../') |
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, call = Function.prototype.call; |
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module.exports = function (cb/*, thisArg*/) { |
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var thisArg = arguments[1], result; |
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callable(cb); |
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result = isSet(this) ? new this.constructor() : new Set(); |
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forOf(this, function (value) { |
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if (call.call(cb, thisArg, value)) result.add(value); |
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}); |
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return result; |
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};
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