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A major update to Bootstrap4 involves almost every line of code

Last year, August 19th was a special day for Bootstrap - not only the fourth anniversary of the project, but also the day when the internal beta version of Bootstrap 4 was released after a year of intensive development. Bootstrap 4 is a major update that

2025-08-24
HTML5 3D love animation tutorial for making romance gifts for girlfriend

This article mainly introduces a tutorial on 3D love animation made using HTML5 and CSS3. You can give it to your girlfriend at any time and place. It is quite romantic. The key is that the code is quite simple, and it is also possible to copy it directly

2025-08-24
js get the implementation code of Sina weather interface

js get the implementation code of Sina weather interface <!doctype html><html><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge">

2025-08-24
A brief discussion on JavaScript overwriting prototypes and changing prototypes

Overwrite prototype // Prisoner example //1. Define prototype object var proto = { sentence : 4, // Year of imprisonment probation: 2 // Year of probation}; //2. Define the constructor of prototype object var Prisoner = function

2025-08-24
Methods related to array objects in JavaScript (detailed explanation)

JS handles arrays with multiple methods. The data types in js are divided into two categories: primitive types and object types. Primitive types include: numerical, string, boolean, null, undefined object types include: objects are sets of attributes, of

2025-08-24
JS inheritance: borrow constructor inheritance and combination inheritance

Borrowing constructor inheritance In the process of solving the problem caused by including reference type values in a prototype, developers began to use a technique called borrowing constructor stealing (sometimes called forged objects or classical inher

2025-08-24
A brief discussion on the difference between toLowerCase and toLocaleLowerCase

There are four methods involved in ECMAScript that involve string case conversion: toLowerCase(), toLocaleLowerCase(), toUpperCase() and toLocaleUpperCase(). Among them, toLowerCase() and toUpper

2025-08-24
JS controls the length of strings in the input box

Copy the code as follows:/ Get the byte length of the string function len(s) {s = String(s);return s.length + (s.match(/[^/x00-/xff]/g) || "").length;// Add the matched

2025-08-24
Solution to inconsistent cursor size display in the input input box

The principle of setting the cursor height of the chrome browser is that when there is no content, the cursor height = the value of input line-height. When there is content, the cursor size in the input input input input box is inconsistent. IE7 and Chrom

2025-08-24
The pop-up layer of native js and the window inside is centered

The code copy is as follows:

2025-08-24
In-depth discussion of Vue.js components and component communication

Basically, we sorted out all the relevant codes according to the official website: http://vuejs.org/guide/index.html Here we take a Todo List application as an example to string together all the relevant codes. All the codes in this article are on github

2025-08-24
More templates for AngularJS introductory tutorial

In this step, you will implement the phone details view, which will be displayed when the user clicks on a phone in the phone list. Please reset the working directory: git checkout -f step-8 Now when you click on a phone in the list, the detailed informat

2025-08-24
A brief discussion on the use of test() function in regularity in js

The test() method is used to detect whether a string matches a pattern. Returns a Boolean value indicating whether the given regular expression is matched in the string being found. regexp.test(str) parameter regexp Required option. A regular expression o

2025-08-24
Implement a payment password input box similar to Alipay based on JS

This article implements an interface similar to Alipay payment password. You can only enter numbers and only 6 digits can be entered first. First, show the renderings to you. If you feel good, please refer to the implementation code. 1. Style sheet.wrap{m

2025-08-24
js defines object array (combined) multidimensional array method

Defining an array in php is simple, but in js it will cause an error if the character is used as a subscript, so use var top_ with the object to create var top_ = {'index':'Home','user':'user','tree':'Module Tre

2025-08-24

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