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JS Basic Essays (must-read for newbies)

During the learning process, the places you have been swallowed up in the past will always appear again and again. The following will record the knowledge points you learned today for easy viewing. Data types in JavaScript are simple (basic) data types: N

2025-07-07
Simple encapsulation of dom query instance code for JS

I have been judging rhino books recently. I have a thought, so I wrote a simple js dom query $ = function (val) { switch(val.charAt(0)) { case '#' : return document.getE

2025-07-07
JS imitate Baidu to switch skin function (html+css)

JS imitate Baidu skin switching effect: (replace a div, select the picture you want, as the web page background, save) Key points: cookie save status html code:<body><div id="header"><div id="header_con"><div>

2025-07-07
Installing Gulp, a project automation build tool using Node.js on Mac OS

To install node.js, you need to install node.js first. Generally speaking, you only need to go to the Node.js official website to download the installation package and install it. But I failed shamefully, and the following error popped up: So I changed to

2025-07-07
Simple example of JS saving images under IE

Simple instance of JS saving images under IE function ieSave() { var img = document.images[0]; var oPop = window.open(im

2025-07-07
Add OK Cancel button to the javascript pop-up window

After clicking on the scale a tag, a window with OK and Cancel pops up. Click OK to execute an action, otherwise it will not be executed. First, we use the ecshop template to use an example {if $votings eq 1}

2025-07-07
Making simple clocks with css+native js

Use css+native js to make simple clocks. The effect is as follows to achieve this effect, divided into three parts: html, javascript, csshtml part, html part is relatively simple, define a clock div, which has the origin, hour, minute, second hand, date a

2025-07-07
How to solve the problem of clicking on the browser page of the mobile browser without jumping the browser double-clicking to enlarge the web page

Mobile web page project 1, angluar js 1.4.6 During the development of web page project, it can be accessed normally using a PC browser, and the IOS device browser can also be accessed normally. However, when using some Android browsers to access the link,

2025-07-07
A comprehensive understanding of js variables in native javascript learning

1. Naming the naming method of variables (camel nomenclature) all lowercase: All underscores between words (my_namespace) uppercase and lowercase: The first word is lowercase. The first word is uppercase. Rules first character English letters or underscor

2025-07-07
A brief analysis of Function types in JavaScript

Function is the most commonly used concept in JavaScript. Function in JavaScript is the easiest function to get started, but it is also the most difficult concept to understand and master in JavaScript. 1. Function type is one of the reference types in js

2025-07-07
Bootstrap writes a huge screen style page for audiences that are compatible with mainstream browsers

Although IE6 has been ignored except for some demanding requirements, IE8, the browser IE8, which comes with WIN7, still needs to be supported. The main advantage of this method is that I personally think that it is that it is less preparation and does no

2025-07-07
Angularjs---Project construction graphic tutorial

The development tool uses WebStorm, but it has not been cracked, and it uses an expiration strategy: after installation, do not rush to open the program, and set the system date to a future date, such as 2020. Then open the program and try it. Then change

2025-07-07
Analyzing Angular form verification from shallow to deep

Recently, the remaining bugs of the components maintained in hand are form verification, and the logic inside the company's form verification code has been unclear for generations, and the code structure is not very angular. It is very necessary to ha

2025-07-07
Extjs Click the check box to add relevant information rows to the table

Function effect: Click the check box to automatically add relevant information rows to the table. If the check box is cancelled, the content in the table will be automatically deleted. The initial effect is probably like this~~~~~// Define the initial sto

2025-07-07
Introduction to the advantages of JavaScript6 let's new syntax

Recently, when I looked at the foreign front-end code, I found that the new features of ES6 have become quite popular, especially let, and the application is very common. Although the usage of let is the same as var, it has improved a lot in terms of synt

2025-07-07

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