Programmer Think

Preliminary study on design mode Singleton mode Variables are defined internally and judged by closures. If they do not exist, new variables are generated Strategy mode Consistent with the principle of single responsibilityAdd or reduce strategies without major changes to the original codeThere are many ways to deal with the same ...

1, Data types in Ts Before introducing data types, first explain the declaration and assignment methods in ts. 1) Declare first and assign value when necessary: let c:number; c=5 2) Direct assignment after declaration let c:boolean = true; 3) After direct assignment, the variable type defaults to the type at the first assignment an ...

1. Project configuration Recently, I was working on a project. The project configuration version is as follows: vue: 3.2.6vue-router: 4.0.11vuex: 4.0.2axios: 0.21.4element-plus: 1.2.0-beta.6typescript: 4.1.5sass: 1.26.5 Let's share how to configure cdn acceleration for the vue3 project configured above Quietly, there are so many el ...

preface For students with JavaScript foundation, it is actually easy to get started with TypeScript. You can gradually transition from JS application to TS application by simply mastering its basic type system. // js const double = (num) => 2 * num // ts const double = (num: number): number => 2 * num However, when the application b ...

🖼️ preface Recently, I used vue3 and ts to play with some gadgets. I found that a common requirement in normal development is the rendering of data list. Now I study again and find that many design specifications and logic I considered when learning vue2 are not particularly appropriate. Therefore, write this article to record the desig ...

React is a library developed, open-source and maintained by facebook, and the meaning of react is to use JavaScript to realize user interaction - a JavaScript library for building user interfaces. Therefore, in essence, React is a library, and its role is to use JavaScript to realize user interaction. Its core idea is to use JavaScript to ...

How to generate closures Closure means that function variables can be saved in the scope of the function, so it seems that the function "wraps" the variables// By definition, functions that contain variables are closures That is, nested functions can be called closures The scope deals with two special situations: Functions are passe ...

Author: Apoorv Tyagi Translator: front end Xiaozhi Source: dev There are dreams and dry goods. Wechat search [Daqian world] pays attention to this bowl washing wisdom who is still washing dishes in the early morning. This article GitHub https://github.com/qq449245884/xiaozhi It has been included. There are complete test sites, materials ...

prefaceFront end scaffolding is an important tool to improve team efficiency in front-end engineering. Therefore, building scaffolding is an unavailable skill for front-end engineers, while there are relatively few scaffolds in the industry for deployment. Generally speaking, it is related to the relevant templates of the business, This paper a ...

Three principles for writing JavaScript: each responsible component encapsulation process abstractionEach party shall take its own responsibilityHTML/CSS/JavaScript each has its own responsibilitiesHTML -> Structural ; CSS -> Presentational ; JavaScript -> BehavioralUnnecessary direct manipulation of styles by JS should be avoidedYou c ...