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23 lines
790 B
JavaScript
23 lines
790 B
JavaScript
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'use strict';
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var $ = require('../internals/export');
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var IS_PURE = require('../internals/is-pure');
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var anObject = require('../internals/an-object');
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var aFunction = require('../internals/a-function');
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var iterate = require('../internals/iterate');
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// `Map.prototype.merge` method
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// https://github.com/tc39/proposal-collection-methods
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$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
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// eslint-disable-next-line no-unused-vars -- required for `.length`
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merge: function merge(iterable /* ...iterbles */) {
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var map = anObject(this);
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var setter = aFunction(map.set);
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var argumentsLength = arguments.length;
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var i = 0;
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while (i < argumentsLength) {
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iterate(arguments[i++], setter, { that: map, AS_ENTRIES: true });
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}
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return map;
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}
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});
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