core-js/modules/web.dom-collections.for-each.js

'use strict';
var global = require('../internals/global');
var DOMIterables = require('../internals/dom-iterables');
var DOMTokenListPrototype = require('../internals/dom-token-list-prototype');
var forEach = require('../internals/array-for-each');
var createNonEnumerableProperty = require('../internals/create-non-enumerable-property');

var handlePrototype = function (CollectionPrototype) {
  // some Chrome versions have non-configurable methods on DOMTokenList
  if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {
    createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);
  } catch (error) {
    CollectionPrototype.forEach = forEach;
  }
};

for (var COLLECTION_NAME in DOMIterables) {
  if (DOMIterables[COLLECTION_NAME]) {
    handlePrototype(global[COLLECTION_NAME] && global[COLLECTION_NAME].prototype);
  }
}

handlePrototype(DOMTokenListPrototype);