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23 lines
839 B
23 lines
839 B
'use strict'; |
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var $ = require('../internals/export'); |
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var uncurryThis = require('../internals/function-uncurry-this'); |
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var anObject = require('../internals/an-object'); |
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var toString = require('../internals/to-string'); |
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var getSetIterator = require('../internals/get-set-iterator'); |
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var iterate = require('../internals/iterate'); |
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var arrayJoin = uncurryThis([].join); |
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var push = [].push; |
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// `Set.prototype.join` method |
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// https://github.com/tc39/proposal-collection-methods |
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$({ target: 'Set', proto: true, real: true, forced: true }, { |
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join: function join(separator) { |
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var set = anObject(this); |
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var iterator = getSetIterator(set); |
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var sep = separator === undefined ? ',' : toString(separator); |
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var result = []; |
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iterate(iterator, push, { that: result, IS_ITERATOR: true }); |
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return arrayJoin(result, sep); |
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} |
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});
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