Using currying function to implement bind method in javascript_javascript skills

Ke Lihua’s function idea: An idea of ​​​​js pre-processing; using the principle of function execution to form a non-destroyed scope, store all the content that needs to be pre-processed in this non-destructed scope , and returns a small function. From now on, we will execute small functions. In the small function, we can perform relevant operations on the previously stored values;
The currying function mainly plays a preprocessing role;
The role of the bind method: Preprocess this in the callback method passed in as the context context;

/**
* bind方法实现原理1
* @param callback [Function] 回调函数
* @param context [Object] 上下文
* @returns {Function} 改变this指向的函数
*/
function bind(callback,context) {
 var outerArg = Array.prototype.slice.call(arguments,2);// 表示取当前作用域中传的参数中除了fn,context以外后面的参数；
 return function (){
  var innerArg = Array.prototype.slice.call(arguments,0);//表示取当前作用域中所有的arguments参数；
  callback.apply(context,outerArg.concat(innerArg));
 }
}

 /**
* 模仿在原型链上的bind实现原理(柯理化函数思想)
* @param context [Object] 上下文
* @returns {Function} 改变this指向的函数
*/
Function.prototype.mybind = function mybind (context) {
 var _this = this;
 var outArg = Array.prototype.slice.call(arguments,1);
 // 兼容情况下
 if('bind' in Function.prototype) {
  return this.bind.apply(this,[context].concat(outArg));
 }
 // 不兼容情况下
 return function () {
  var inArg = Array.prototype.slice.call(arguments,0);
  inArg.length === 0?inArg[inArg.length]=window.event:null;
  var arg = outArg.concat(inArg);
  _this.apply(context,arg);
 }
}

The above is the relevant code for using the currying function to implement the bind method. I hope it will be helpful to everyone in learning javascript programming.