From e93da8b04da86773247aadb1cbb1912e4f4526b2 Mon Sep 17 00:00:00 2001 From: Priyansh Date: Tue, 22 Dec 2020 17:49:59 +0530 Subject: Rewriting Project --- node_modules/core-js/internals/function-bind.js | 27 +++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 node_modules/core-js/internals/function-bind.js (limited to 'node_modules/core-js/internals/function-bind.js') diff --git a/node_modules/core-js/internals/function-bind.js b/node_modules/core-js/internals/function-bind.js new file mode 100644 index 0000000..6e1e81d --- /dev/null +++ b/node_modules/core-js/internals/function-bind.js @@ -0,0 +1,27 @@ +'use strict'; +var aFunction = require('../internals/a-function'); +var isObject = require('../internals/is-object'); + +var slice = [].slice; +var factories = {}; + +var construct = function (C, argsLength, args) { + if (!(argsLength in factories)) { + for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']'; + // eslint-disable-next-line no-new-func + factories[argsLength] = Function('C,a', 'return new C(' + list.join(',') + ')'); + } return factories[argsLength](C, args); +}; + +// `Function.prototype.bind` method implementation +// https://tc39.github.io/ecma262/#sec-function.prototype.bind +module.exports = Function.bind || function bind(that /* , ...args */) { + var fn = aFunction(this); + var partArgs = slice.call(arguments, 1); + var boundFunction = function bound(/* args... */) { + var args = partArgs.concat(slice.call(arguments)); + return this instanceof boundFunction ? construct(fn, args.length, args) : fn.apply(that, args); + }; + if (isObject(fn.prototype)) boundFunction.prototype = fn.prototype; + return boundFunction; +}; -- cgit v1.2.3