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16 lines
547 B
16 lines
547 B
'use strict'; |
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// https://github.com/tc39/proposal-iterator-helpers |
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var $ = require('../internals/export'); |
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var iterate = require('../internals/iterate'); |
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var aCallable = require('../internals/a-callable'); |
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var anObject = require('../internals/an-object'); |
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$({ target: 'Iterator', proto: true, real: true, forced: true }, { |
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find: function find(fn) { |
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anObject(this); |
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aCallable(fn); |
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return iterate(this, function (value, stop) { |
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if (fn(value)) return stop(value); |
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}, { IS_ITERATOR: true, INTERRUPTED: true }).result; |
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} |
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});
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