题解 | #Function.bind#
Function.bind
https://www.nowcoder.com/practice/ecad0164931847f78c55278cee56e544
{"html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t\n <script type=\"text/javascript\">\n // 补全代码\n Function.prototype._bind = function(target, ...arguments1) {\n if(typeof this !== 'function') {\n throw error('this must be a function')\n }\n const fn = this;\n const args = Array.prototype.slice.call(arguments, 1);\n\n const fBound = function() {\n return fn.apply(this instanceof fn ? fn : target, args.concat(Array.prototype.slice.call(arguments)))\n }\n function fNop() {}\n\n fNop.prototype = fn.prototype;\n fBound.prototype = new fNop();\n\n return fBound;\n}\n\n \n </script>\n </body>\n</html>","css":"","js":""}
