You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
parttimejob/node_modules/core-js/internals/add-to-unscopables.js

22 lines
669 B

'use strict';
var wellKnownSymbol = require('../internals/well-known-symbol');
var create = require('../internals/object-create');
var defineProperty = require('../internals/object-define-property').f;
var UNSCOPABLES = wellKnownSymbol('unscopables');
var ArrayPrototype = Array.prototype;
// Array.prototype[@@unscopables]
// https://tc39.es/ecma262/#sec-array.prototype-@@unscopables
if (ArrayPrototype[UNSCOPABLES] === undefined) {
defineProperty(ArrayPrototype, UNSCOPABLES, {
configurable: true,
value: create(null)
});
}
// add a key to Array.prototype[@@unscopables]
module.exports = function (key) {
ArrayPrototype[UNSCOPABLES][key] = true;
};