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Three ways to create events in JS (instance code)

1. Ordinary definition

2025-07-14
AngularJS controller inherits from another controller

In AngularJS, the controller inherits, and the commonly used scope nesting scope is the scope. By default, when a property cannot be found in the current scope, it will be searched in the parent scope, if it cannot be found until $rootScope is found. But

2025-07-14
In-depth analysis of Bootstrap list group components

Bootstrap, from Twitter, is the most popular front-end framework at present. Bootstrap is based on HTML, CSS, and JAVASCRIPT. It is simple and flexible, making web development faster. List groups are flexible and powerful components that can not only be u

2025-07-14
JavaScript live comments and post barrage picture cutting function points collection effect code

1. Code html+js<!DOCTYPE HTML><html><head><meta charset="utf-8"><title> Duofa live broadcast platform</title>

2025-07-14
In-depth analysis of knockout source code analysis subscription

What is Knockout.js? Knockout is an excellent JavaScript library that helps you create a user interface rich text with good display and editing functions using just a clean and tidy underlying data model. Any time your local UI content needs to be automat

2025-07-14
Methods for implementing Ajax in native JavaScript

First, I shared with you the code to implement Ajax in native JavaScript for your reference. The specific content is as follows var getXmlHttpRequest = function() { if (window.XMLHttpRequest) { //Provided by mainstream browsers

2025-07-14
Some more practical js methods

This article shares some of the more practical JS methods I have accumulated in daily life for your guidance and evaluation. I want to introduce it in different articles, but I found it a bit extra. I have sorted out the methods but I don’t have many ways

2025-07-14
Detailed explanation of how BootStrap thrown into Django

Because the version of django is quite different, the following configuration is for learning reference only. D:/www/mysite>python --versionPython 2.7.5>>> print django.__version__1.9.4 This record will not be explained in detail, the main con

2025-07-14
Introduction to the difference between dom0-level events and dom2-level events in JS

dom0 level event <a href="#" id="hash" onclick="fn();fn();"><button type="button">returns to the above and activate</button></a> var btn=$('#hash').get();b

2025-07-14
JavaScript implements smooth and seamless scrolling

In this article, we realize the effect of rolling advertising in pure JS mode for your reference. The specific content is as follows: First, the web style: #demo { background: #FFF; overflow:hidden; border: 1px dashed #CCC; wid

2025-07-14
Recommended method for judging whether the image is loaded or not

load event<script type="text/javascript"> $('img').onload = function() { //code }</script> Advantages: Simple and easy to use, without affecting HTML code. Disadvantage: Only one element can be specified

2025-07-14
Just five sentences to get the JavaScript scope (classic)

The scope of JavaScript has always been a knowledge point that is difficult to understand in front-end development. Remember a few words about the scope of JavaScript. You are not afraid of traveling around the world... 1. "There is no block-level sc

2025-07-14
JavaScript on inheritance parsing

The previous article has introduced combination inheritance, and now we will talk about the remaining inheritances. The prototype inherits and calls a function and receives the object returned by the function. The prototype of this object is the parameter

2025-07-14
Detailed explanation of the modular development example using Requirejs in HTML

When front-end modularization, not only JS needs modular management, but html sometimes also needs modular management. Here we introduce how to implement modular development of html code through requirejs. How to load htmlReuqirejs using requirejs has a p

2025-07-14
js implements pure front-end image preview

Image upload is an ordinary function, and image preview is an indispensable sub-function in the upload function. Before this, I used to subscribe to the onchange event of the input[type=file] element, once the path is changed, the image is uploaded to the

2025-07-14

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