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100 JavaScript Functional Code snippets that can be used directly

, native JavaScript implements string length interceptionView Code2. Native JavaScript gets the domain hostView Code3. Native JavaScript Clear spaceView Code4. Native JavaScript replaces allView Code5. Native JavaScript Escape HTML tagView Code6.

Javascript-form character length and database Field Length

The length of an html form is calculated based on the number of characters, whether it is a Chinese character or a letter, but the database is calculated by byte. The number of Chinese characters occupies 1 of 2 letters, in this way, the length of

String operations in JavaScript

String operations in JavaScript 1. Summary strings are almost everywhere in JavaScript. When you process user input data, when you read or set the attributes of a DOM object, when you operate cookies, of course there are more .... The core part of

JavaScript-form character length vs. database field length

HTML form length is calculated by the number of characters, whether it is Chinese characters or letters, but the database is also in bytes, the Chinese characters accounted for 2 letters accounted for 1, so it is easy to write the length of the

JavaScript basic data type, value type, and reference type _ javascript tips-js tutorial

We often see some data types in javascript, such as "undefined", "boolean", and "string, this article will help you learn the basic JavaScript data types, value types, and reference types. For more information, see this article, four basic data

Summary of little knowledge about JavaScript performance optimization, and javascript Performance Optimization

Summary of little knowledge about JavaScript performance optimization, and javascript Performance Optimization With the development of the network, network speed and machine speed, more and more websites use a variety of client technologies. Ajax is

The JavaScript length character length function

The JavaScript length character length function, we use the length function for a lot of time, because you have to have the front desk judge whether a user's username and password length is what I want to specify. Advanced scripters often need

Summary of string processing functions in Javascript

String objects provide many methods, but few programmers make full use of them, which is a defect for a programmer. The methods provided by the string can be used to operate characters, generate HTML tags, and search strings. The following describes

Object-oriented Javascript function overload and type check

  Function overload and type check A common feature of other object-oriented languages (such as Java) is the ability to "overload" functions: pass them to different numbers or types of parameters, and the functions perform different operations.

JavaScript basic data types and value types and reference types _javascript tips

Four basic data types in javascript: numeric values (integers and real numbers), string literals (characters or values enclosed by "" or "), Boolean (make True or false), and null values. The data in the basic type of JavaScript can be constants or

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