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JS example of using onerror to catch exceptions

This article describes how JS uses onerror to catch exceptions. I will share it with you for your reference. The details are as follows: If you need to use the onerror event, you must create a function that handles errors. You can call this function onerr

2025-08-13
AngularJS ng-controller directive simple example

AngularJS ng-controller directive AngularJS instance adds a controller to the application variable:<!DOCTYPE html><html><head><meta charset="utf-8">

2025-08-13
JS Time Comparison JS Simple Implementation Method for Calculating Time Difference

The page uses dateTimePicker to get the data type as "12:12:12" If you enter "11:11:11" the code to automatically calculate the time difference between the two is as follows: var a="12:49:00", b="14:49:00";s=a.split

2025-08-13
js method to receive and convert array objects in Java

When working on a project, if you want to issue commands to the ocx control, you need to get the objects in java in js, and then spell them into a format and issue them. . . It is simpler when an object is one, but it is a little troublesome if it is an a

2025-08-13
Why JavaScript has no block-level scope

Recently I was watching the actual ES2015 battle. There is a saying in it that there is no block-level scope in JavaScript. You may not understand this problem. Let’s take a look at an example first. var a = []for(var i = 0; i < 10; i++){ a[i] = functi

2025-08-13
JS imitation hao123 navigation page picture carousel effect

Everyone is familiar with the hao123 website. I don’t need to say more about the specific effects. Interested friends can refer to the renderings. The following editor will share with you the idea of implementing the code. Of course, you can appropriately

2025-08-13
How to get the value in the span in special cases

How to get A? The code copy is as follows:<div> <span>A <span>123</span></span></div>

2025-08-13
How to get integers and remainders by js

1. Discard the decimal part and keep the integer part parseInt(5/2)2. Round upwards, add 1Math.ceil(5/2)3 if there is a decimal, round up.Math.round(5/2)4, round downwards Math.floor(5/2) Method FF of Math object: Fir

2025-08-13
Form control status in Bootstrap (verification status)

When making a form, it is inevitable to do form verification. It is also necessary to provide verification status styles, and these effects are also provided in the Bootstrap framework. 1. .has-warning: Warning status (yellow) 2. .has-error: Error status

2025-08-13
Implementing JavaScript's composition----------------------------------------------------------------------------------------------------------------------

We know that a complete JavaScript implementation needs to be composed of three parts: ECMAScript (core), BOM (browser object model), and DOM (document object model). Today I mainly learn BOM and DOM. BOM:BOM provides many objects to access the browser&#3

2025-08-13
Knockoutjs Learning Series (II) Fancy Bundle

In the previous Knockoutjs learning series (I) Ko's first experience article, it was mentioned that the data-bind = "XX:OO" binding method in ko can not only bind text, value, etc., but also bind visible, style and other appearance attribute

2025-08-13
JavaScript method to merge arrays using concat method

Before the introduction, throw a question: How to combine multiple arrays into one array? The following sharing will be divided into the following sections: 1. Introduction to the basics of the concat method 2. Experience the concat method from the exampl

2025-08-13
Implement tab tag switching effect based on Bootstrap

This article shares the specific code for Bootstrap to realize the tab tag switching effect for your reference. The specific content is as follows<!DOCTYPE html><html><head><meta charset="utf-8"><title></title>

2025-08-13
Several ways to implement page jump redirection by js

The first type: Copy the code as follows:<script language="javascript"type="text/javascript"> window.location.href="http://shanghepinpai.com"; </s

2025-08-13
AngularJS basic ng-options directive detailed explanation

AngularJS ng-options directive AngularJS instance uses array elements to fill the drop-down list:<!DOCTYPE html><html><head><meta charset="utf-8">

2025-08-13

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