4 recommended articles on error-prone knowledge points

Preface This article is about some error-prone knowledge points that I collected and organized in the process of learning JavaScript. It will be divided into six aspects: variable scope, type comparison, this pointer, function parameters, closure issues, and object copying and assignment. A step-by-step introduction and explanation, which also involves some ES6 knowledge points. JavaScript knowledge points 1. Variable scope var a = 1; function test() { var a = 2; console.log(a); // 2 } a is declared and assigned in the function scope above test(); and is above the console, so the output a is equal to 2 following the proximity principle. var a = 1; function test2()&nb

1. Some common JavaScript knowledge points that are easy to make mistakes

Introduction: Preface This article is about some error-prone knowledge points that I collected and organized in the process of learning JavaScript. It will focus on variable scope, type comparison, this pointer, function parameters, closure issues and object copying and These 6 aspects of assignment are explained from the simple to the basic...

2. JavaScript error-prone knowledge points are organized and explained in detail

Introduction: Preface This article is about some error-prone knowledge points that I collected and organized in the process of learning JavaScript. It will focus on variable scope, type comparison, this pointer, and function parameters. , closure issues and object copying and assignment are introduced and explained from the shallower to the deeper, which also involves some ES6 knowledge points. JavaScript knowledge points 1. Variable scope var a = 1; function test() { var a = 2; console.log(a); // 2 } test(); The above function functions...

3. JavaScript error-prone knowledge points compilation

##Introduction: This article These are some error-prone knowledge points that I collected and organized in the process of learning JavaScript. They will be introduced from the simplest to the deeper aspects of variable scope, type comparison, this pointer, function parameters, closure issues, and object copying and assignment. and explanation, which also involves some ES6 knowledge points.

4. Complete common JavaScript error-prone knowledge points

##Introduction: This article is some error-prone knowledge points that I collected and organized in the process of learning JavaScript. It will cover the six aspects of variable scope, type comparison, this pointer, function parameters, closure issues, and object copying and assignment. Each aspect is introduced and explained from the shallower to the deeper, which also involves some ES6 knowledge points

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