mdn--javascript--Introduction--The first chapter--Summary of knowledge points

1. What is js: JavaScript is a programming language that allows you to implement complex things in a Web pageExample:var para = document.queryselector (' P ');Para.addeventlistener (' click ', UpdateName);function UpdateName () {var name = prompt ('

JavaScript from scope to closure-notes

Read "You don't know JavaScript" a book to make a note;Compiler principle:JS is a compiled language, similar to the traditional compilation language, the traditional compilation process is divided into three stages;1. Word segmentation/lexical

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In Nodejs, Express commonly used middleware body-parser for parsing, nodejsbody-parser Preface body-parserIs a very commonexpressMiddleware is used to parse the request body of the post request. The following two lines of code cover most of the

Detailed explanation of the Cross-origin issue of VueJs frontend and backend separation, vuejs

Detailed explanation of the Cross-origin issue of VueJs frontend and backend separation, vuejs Vue project built using vue-cli You can use proxyTable in the project to solve cross-origin problems. Set the index. js directory under config. Configure

The implementation method for the WeChat applet to obtain the user's openId, the applet openid

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Differences in JavaScript syntax between IE and Firefox _ javascript tips-js tutorial

This article mainly introduces the differences in JavaScript syntax between IE and Firefox, and seven different aspects in JavaScript syntax, if you are interested, you can refer to the conclusion that, although JavaScript history uses lengthy and

WebGL uses FBO to complete the cube Paster effect (with demo source code download) _ javascript skills

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How to use Google map to display the current location in AngularJS _ AngularJS

This article describes how to use Google Maps to display the current location in AngularJS. This article is very detailed and has reference value, if you are interested in angularjs and Google map knowledge, learn it together. In html5, navigator is

Awesome jQuery image slider animation special effect code aggregation _ jquery

This article will collect 10 superb jQuery image slider animations for you, all of which are carefully selected by small editors. I hope these ready-made jQuery plug-ins will save you a lot of development time. During website development, especially

Use CDN and AJAX to accelerate jQuery loading in WordPress

This article mainly introduces how to use CDN and AJAX to accelerate jQuery loading in WordPress. Pay attention to the problems of Google connection in WordPress and CDN in the Mainland. For more information, see Are you sure you want to put it in

Detailed explanation of Json parsing by jQuery _ jquery

This article mainly introduces jQuery's method for parsing Json, and analyzes common parsing and conversion techniques of jQuery for json in detail based on the example form. It has some reference value, for more information about how jQuery parses

Jquery vertical multilevel accordion menu with source code download _ jquery

This article will share with you a simple but practical multi-level vertical accordion drop-down menu list that uses css to create a multi-level accordion menu, this code is used to group different sub-menus to produce multi-level menu effects. This

How to Use substr, substring, indexOf, lastIndexOf, split, and replace in js _ javascript skills

This article mainly introduces details about how to use substr, substring, indexOf, lastIndexOf, split, and replace in js. For more information, see indexOf () returns the position of the first occurrence of a specified string value. The

Multiple types of mouse drag and drop effects implemented by JavaScript _ javascript skills

This article mainly introduces a variety of mouse drag and drop effects implemented by JavaScript, and involves related techniques for JavaScript to respond to mouse events and dynamically transform page element attributes. It has some reference

Basic knowledge of JavaScript function calls and parameter transfer

This article describes how to call and PASS Parameters of JavaScript functions. It is a basic knowledge in JavaScript beginners. For more information, see JavaScript function call JavaScript functions can be called in four ways. The difference

JQuery ultra-exquisite image slideshow slides special effect code sharing _ jquery

This article mainly introduces the special effects of jQuery ultra-exquisite image slideshow slides. The image carousel effect is especially suitable for product display. For more information, see. This article describes jQuery's ultra-exquisite

Jquery plugin tytabs. jquery. min. js implements the gradient TAB effect _ jquery

This article mainly introduces the jquery plugin tytabs. jquery. min. js implements the gradient TAB effect, and the example analyzes the tytabs. jquery. min. tips for using js plug-ins to implement the tab switch effect, which has some reference

Pure javascript imitating WeChat airplane playing games _ javascript skills

Pure JavaScript simulates aircraft-hitting games, and draws on web games. The interface design is a portrait-like mobile phone screen style, with smooth gaming effect, through this article, I will share with you how to simulate airplane games in

Javascript to achieve online customer service effect _ javascript skills

This article mainly introduces the example code of javascript for implementing online customer service. It is very good. We recommend it to you here. If you need it, you can refer to it. The online customer service system is used on a large number

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