


How to convert strings and Unicode encodings in JavaScript_javascript skills
本文实例讲述了JavaScript中字符串与Unicode编码互相转换的实现方法。分享给大家供大家参考,具体如下:
这段代码演示了JavaScript中字符串与Unicode编码的转换:
// 为了控制台的演示方便, 变量没有添加 var 定义 // 实际编程中请避免 // 字符串 str = "中文"; // 获取字符 char0 = str.charAt(0); // "中" // 数字编码值 code = str.charCodeAt(0); // 20013 // 编码互转 str0 = String.fromCharCode(code); // "中" // 转为16进制数组 code16 = code.toString(16); // "4e2d" // 变成字面量表示法 ustr = "\\u"+code16; // "\u4e2d" // 包装为JSON jsonstr = '{"ustr": "'+ ustr +'"}'; //'{"ustr": "\u4e2d"}' // 使用JSON工具转换 obj = JSON.parse(jsonstr); // Object {ustr: "中"} // ustr_n = obj.ustr; // "中"
如果是一组字符串,则需要使用到 for 循环来处理。
其中,我们使用了JSON工具来进行转换。
如果要兼容 IE6等浏览器,则可用如下形式进行解析:
if("object" === typeof message){ // 如果是对象,则不进行转换 } else if(window["JSON"]){ message = JSON.parse(message); } else { // IE6, IE7 message = eval("("+ message + ")"); }
控制台调试结果如下所示:
希望本文所述对大家JavaScript程序设计有所帮助。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Practical tips for converting full-width English letters into half-width forms. In modern life, we often come into contact with English letters, and we often need to input English letters when using computers, mobile phones and other devices. However, sometimes we encounter full-width English letters, and we need to use the half-width form. So, how to convert full-width English letters to half-width form? Here are some practical tips for you. First of all, full-width English letters and numbers refer to characters that occupy a full-width position in the input method, while half-width English letters and numbers occupy a full-width position.

This article will introduce in detail how to convert months in PHP to English months, and give specific code examples. In PHP development, sometimes we need to convert digital months to English months, which is very practical in some date processing or data display scenarios. The implementation principles, specific code examples and precautions will be explained in detail below. 1. Implementation principle In PHP, you can convert digital months into English months by using the DateTime class and format method. Date

Go language is a powerful and flexible programming language that provides rich string processing functions, including string interception. In the Go language, we can use slices to intercept strings. Next, we will introduce in detail how to intercept strings in Go language, with specific code examples. 1. Use slicing to intercept a string. In the Go language, you can use slicing expressions to intercept a part of a string. The syntax of slice expression is as follows: slice:=str[start:end]where, s

QQ Music allows everyone to enjoy watching movies and relieve boredom. You can use this software every day to easily satisfy your needs. A large number of high-quality songs are available for everyone to listen to. You can also download and save them. The next time you listen to them, you don’t need an Internet connection. The songs downloaded here are not in MP3 format and cannot be used on other platforms. After the membership songs expire, there is no way to listen to them again. Therefore, many friends want to convert the songs into MP3 format. Here, the editor explains You provide methods so that everyone can use them! 1. Open QQ Music on your computer, click the [Main Menu] button in the upper right corner, click [Audio Transcoding], select the [Add Song] option, and add the songs that need to be converted; 2. After adding the songs, click to select Convert to [mp3]

1. First open pycharm and enter the pycharm homepage. 2. Then create a new python script, right-click - click new - click pythonfile. 3. Enter a string, code: s="-". 4. Then you need to repeat the symbols in the string 20 times, code: s1=s*20. 5. Enter the print output code, code: print(s1). 6. Finally run the script and you will see our return value at the bottom: - repeated 20 times.

Detailed explanation of the method of converting int type to string in PHP In PHP development, we often encounter the need to convert int type to string type. This conversion can be achieved in a variety of ways. This article will introduce several common methods in detail, with specific code examples to help readers better understand. 1. Use PHP’s built-in function strval(). PHP provides a built-in function strval() that can convert variables of different types into string types. When we need to convert int type to string type,

How to convert full-width English letters into half-width letters In daily life and work, sometimes we encounter situations where we need to convert full-width English letters into half-width letters, such as when entering computer passwords, editing documents, or designing layouts. Full-width English letters and numbers refer to characters with the same width as Chinese characters, while half-width English letters refer to characters with a narrower width. In actual operation, we need to master some simple methods to convert full-width English letters into half-width letters so that we can process text and numbers more conveniently. 1. Full-width English letters and half-width English letters

PHP Tutorial: How to Convert Int Type to String In PHP, converting integer data to string is a common operation. This tutorial will introduce how to use PHP's built-in functions to convert the int type to a string, while providing specific code examples. Use cast: In PHP, you can use cast to convert integer data into a string. This method is very simple. You only need to add (string) before the integer data to convert it into a string. Below is a simple sample code
