| 1 | 'use strict';
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| 2 |
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| 3 | var $ = require('../internals/export');
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| 4 | var anObject = require('../internals/an-object');
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| 5 | var toPositiveInteger = require('../internals/to-positive-integer');
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| 6 | var createIteratorProxy = require('../internals/create-iterator-proxy');
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| 7 |
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| 8 | var IteratorProxy = createIteratorProxy(function (arg) {
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| 9 | if (!this.remaining--) {
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| 10 | this.done = true;
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| 11 | return;
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| 12 | }
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| 13 | var result = anObject(this.next.call(this.iterator, arg));
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| 14 | var done = this.done = !!result.done;
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| 15 | if (!done) return result.value;
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| 16 | });
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| 17 |
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| 18 | $({ target: 'Iterator', proto: true, real: true }, {
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| 19 | take: function take(limit) {
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| 20 | return new IteratorProxy({
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| 21 | iterator: anObject(this),
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| 22 | remaining: toPositiveInteger(limit)
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| 23 | });
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| 24 | }
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| 25 | });
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