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44
node_modules/core-js/modules/esnext.iterator.chunks.js
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44
node_modules/core-js/modules/esnext.iterator.chunks.js
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'use strict';
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var $ = require('../internals/export');
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var anObject = require('../internals/an-object');
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var call = require('../internals/function-call');
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var createIteratorProxy = require('../internals/iterator-create-proxy');
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var getIteratorDirect = require('../internals/get-iterator-direct');
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var iteratorClose = require('../internals/iterator-close');
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var uncurryThis = require('../internals/function-uncurry-this');
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var $RangeError = RangeError;
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var push = uncurryThis([].push);
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var IteratorProxy = createIteratorProxy(function () {
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var iterator = this.iterator;
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var next = this.next;
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var chunkSize = this.chunkSize;
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var buffer = [];
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var result, done;
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while (true) {
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result = anObject(call(next, iterator));
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done = !!result.done;
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if (done) {
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if (buffer.length) return buffer;
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this.done = true;
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return;
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}
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push(buffer, result.value);
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if (buffer.length === chunkSize) return buffer;
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}
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});
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// `Iterator.prototype.chunks` method
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// https://github.com/tc39/proposal-iterator-chunking
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$({ target: 'Iterator', proto: true, real: true, forced: true }, {
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chunks: function chunks(chunkSize) {
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var O = anObject(this);
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if (typeof chunkSize != 'number' || !chunkSize || chunkSize >>> 0 !== chunkSize) {
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return iteratorClose(O, 'throw', new $RangeError('chunkSize must be integer in [1, 2^32-1]'));
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}
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return new IteratorProxy(getIteratorDirect(O), {
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chunkSize: chunkSize
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});
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}
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});
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