Programmer Think

Promise is a constructor for asynchronous requests introduced by es6 to help solve the problem of callback hell. The following content will customize the implementation of promise, which only includes basic use, so some boundary conditions are not taken into account.If you are not familiar with promise usage, you can moveUnderstanding and use o ...

mini-vue Implement a simple Vue js. To understand the principle of Vue response, mom doesn't have to worry that I won't use Vue anymore! The technology is not yet mature and only a small part of functions are realized-- 2020/08/27 Technical implementation reference Pull hook education "big front end high salary training camp" ...

Transform 1. Introduction In the previous study, we learned two special effects: transition and animation. Let's learn a new effect transformation. The transformation effect is mainly a series of operations on two-dimensional (2D) and three-dimensional (3D) coordinates. Let's learn it together. 2. Transform (1) transformation overview: CSS ...

Author Yu ZiyiSource: Ali technical official accountI. IntroductionThis article is an introduction to the principles of V8 compilation, which aims to give you a perceptual understanding of the parsing process of JavaScript in V8. The main writing process of this paper is as follows:Interpreter and compiler: introduction to basic knowledge of co ...

preface If you want to do well, you must first sharpen your tools. In order to improve development efficiency, VScode is selected. Management - Settings - common settings - font Consolas, 'Microsoft YaHei Light', monospace Chinese vscade Prettier formatting code (indented 2 cells) Auto Rename Tag synchronously modifies tags CSS support f ...

CSS3 selector - property selector Level 1: CSS3 - related concepts of property selector Customs clearance knowledge 1,Of the following options, the attribute selector is( C) A,div>span{color:red;} B,#box{color:red;} C,span[id]{color:red;} D,span{color:red;} 2,The style rules are as follows: p[class $= en]{font-weight:bold;} The style ...

preface Hello! buddy! Thank you very much for reading Haihong's article. If there are mistakes in the article, you are welcome to point out ~   Self introduction ˊ ᵕ ˋ) ੭ Nickname: Hai Hong Label: program ape ｜ C + + player ｜ student Introduction: I got acquainted with programming in C language, and then transferred to computer major. I w ...

JS brief introduction characteristic Interpretative languageSyntax structure similar to C and JavaDynamic languagePrototype based object oriented Basic grammar Output statement <script type="text/javascript"> // Control the browser to pop up a warning box alert("This is my first line js code") // Let the ...

Write in front Is it still facing Baidu, Google and the process day after day? Have you ever thought about trying to use various design patterns in ordinary business? Think about a thousand roads at night and go the same way in the morning. I have always despised the code written in the past, thinking about refactoring, but I dare not start. M ...

Binary tree and binary lookup treeTree is a nonlinear data structure, which stores data in a hierarchical manner. Trees are used to store hierarchical data, such as files in the file system; Trees are also used to store sequence tables.Binary tree is a special tree with no more than two child nodes. Binary tree has some special computational pr ...