Programmer Group

JavaScript object An object is a collection of related data and methods (usually composed of some variables and functions, which we call attributes and methods in an object) 1. Object creation Literal mode var obj = { name:'TTTony', age:21, sayName:function(){ console.log(this.name); } } Constructor Pattern var obj = new Object(); ...

What are the methods for JS data type detection What are the data types in JavaScript In JavaScript, data types are divided into primitive and object types Raw data types include String: Represents a string, for example:'jingzhi'Number: Represents a numeric value, for example, 123Boolean: Represents a Boolean type of data with two values tru ...

Components of JavaScript in browsers JS in Browser ECMAScript (Core Syntax) ES3 --> ES4 --> ES5 --> ES6 (2015) --> ES2016 --> ES2017..... Variables, Constants data type function Process control (if, switch, for, while, for...in, continue, break) operator JS built-in objects (Array, String, RegExp, Date, Math....) Web ...

Article catalog 🔥 1. Foreword   🔥 2. Project structure analysis 🔥 3. Operation steps 🔥 4. View effect   🔥 5. Previous good articles recommended 🔥 1. Foreword   Hello, I'm a paper plane. If every day is endless knowledge, such learning must be very boring. Today, I'll bring you something with a sense of achi ...

1 Node Node provides us with a JavaScript code running environment that can directly interact with the operating system without relying on the browser. It can directly use JS to write background programs, so that foreground developers can also quickly develop background code, that is, HTML+JavaScript+MongoDB; Instead of Tomcat, the foregr ...

1. Build vue project first Run Vue cli vue create vui We renamed src to examples and added the packages directory to store our custom components However, cli will start the service under src by default. If the directory name changes, we need to manually modify the configuration and customize the file of packaging configuration items. ...

vue3-vite2-blog-h5 A simple version of mobile blog. The front-end project is mainly built by using Vue3's latest syntax sugar < script setup > and Vant3.0; Tsx is used to render common components; Vite 2.0 is used to build and package. The back-end project is mainly designed by Node framework Koa2 and MongoDB database. PC blog online pr ...

1, Introduction to webpack What is webpack webpack is a front-end resource building tool and a static module packer In webpack, all file resources in the front end (js/json/css/img/less) are treated as modules. It will perform static analysis according to the dependency of the module and package the corresponding static resources. ...

jwt login registration jwt concept Token does not need to be stored in the database.Just generate the key behind the scenes, then put the token in the request body or header when the client sends the request. When the client receives the token, it is stored in the local store or cookie. Note that sensitive information cannot be stored in the to ...

start Today, we start to analyze how JS and Rust interact. After all, the performance of JS is still not competent in some scenarios. This is the time when Rust is on the stage. The two complement each other and do no harm! op I have always said that op is a plug-in mechanism on deno. All functions on deno are basically based on this plug-in me ...