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home/emeraadmin/public_html/node_modules/core-js-pure/modules/esnext.map.find-key.js000064400000001300151701447160024665 0ustar00'use strict';
var $ = require('../internals/export');
var bind = require('../internals/function-bind-context');
var aMap = require('../internals/a-map');
var iterate = require('../internals/map-iterate');

// `Map.prototype.findKey` method
// https://github.com/tc39/proposal-collection-methods
$({ target: 'Map', proto: true, real: true, forced: true }, {
  findKey: function findKey(callbackfn /* , thisArg */) {
    var map = aMap(this);
    var boundFunction = bind(callbackfn, arguments.length > 1 ? arguments[1] : undefined);
    var result = iterate(map, function (value, key) {
      if (boundFunction(value, key, map)) return { key: key };
    }, true);
    return result && result.key;
  }
});