How to convert JS strings to hexadecimal
开发过程中,字符串与十六进、二进制之间的相互转换常常会用到,尤其是涉及到中文的加密时,就需要把中文转换为十六进制。下面说说具体的转换方法。
1、字符串转换为十六进制
主要使用 charCodeAt()方法,此方法返回一个字符的 Unicode 值,该字符位于指定索引位置。
function stringToHex(str){ var val=""; for(var i = 0; i < str.length; i++){ if(val == "") val = str.charCodeAt(i).toString(16); else val += "," + str.charCodeAt(i).toString(16); } return val; }
调用方法:
var str = "abcde"; stringToHex(str); stringToHex('AB中国中國'); -- 结果: 41,42,4e2d,56fd,4e2d,570b
2、十六进制转换为字符串
主要使用 fromCharCode()方法,此方法将 Unicode 码转换为与之对应的字符。
function hexToString(str){ var val=""; var arr = str.split(","); for(arr i = 0; i < arr.length; i++){ val += arr[i].fromCharCode(i); } return val; } 调用方法: var str = "676865"; stringToHex(str);
3、用 parseInt() 方法转换
parseInt(string, radix) 方法只能转换 String 类型,对其它类型都返回 NaN(非数字)。string 表示待转换的字符,radix 表示要转为的进制,值介于 2 ~ 36 之间。 parseInt("bc",16); //表示把字符串bc转换为16进制,结果:188 parseInt("10",8); //表示把字符串10转换为8进制,结果:8 parseInt("10",2); //表示把字符串10转换为2进制,结果:2
var str = "abcdeghijklmnopqrstuvwxyz"; console.log(stringToHex(str)); str="http://www.qq.com"; len=str.length; arr=[]; for(var i=0;i<len;i++){ arr.push(str.charCodeAt(i).toString(16)); } console.log("\\x"+arr.join("\\x"));
相关推荐:
JavaScript进阶(四)js字符串转换成数字的三种方法
The above is the detailed content of How to convert JS strings to hexadecimal. For more information, please follow other related articles on the PHP Chinese website!

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

AI Hentai Generator
Generate AI Hentai for free.

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



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,

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.

Title: How to determine whether a string ends with a specific character in Golang. In the Go language, sometimes we need to determine whether a string ends with a specific character. This is very common when processing strings. This article will introduce how to use the Go language to implement this function, and provide code examples for your reference. First, let's take a look at how to determine whether a string ends with a specified character in Golang. The characters in a string in Golang can be obtained through indexing, and the length of the string can be

How to check if a string starts with a specific character in Golang? When programming in Golang, you often encounter situations where you need to check whether a string begins with a specific character. To meet this requirement, we can use the functions provided by the strings package in Golang to achieve this. Next, we will introduce in detail how to use Golang to check whether a string starts with a specific character, with specific code examples. In Golang, we can use HasPrefix from the strings package

Methods to solve Chinese garbled characters when converting hexadecimal strings in PHP. In PHP programming, sometimes we encounter situations where we need to convert strings represented by hexadecimal into normal Chinese characters. However, in the process of this conversion, sometimes you will encounter the problem of Chinese garbled characters. This article will provide you with a method to solve the problem of Chinese garbled characters when converting hexadecimal to string in PHP, and give specific code examples. Use the hex2bin() function for hexadecimal conversion. PHP’s built-in hex2bin() function can convert 1

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

PHP String Matching Tips: Avoid Ambiguous Included Expressions In PHP development, string matching is a common task, usually used to find specific text content or to verify the format of input. However, sometimes we need to avoid using ambiguous inclusion expressions to ensure match accuracy. This article will introduce some techniques to avoid ambiguous inclusion expressions when doing string matching in PHP, and provide specific code examples. Use preg_match() function for exact matching In PHP, you can use preg_mat

PHP String Operation: A Practical Method to Effectively Remove Spaces In PHP development, you often encounter situations where you need to remove spaces from a string. Removing spaces can make the string cleaner and facilitate subsequent data processing and display. This article will introduce several effective and practical methods for removing spaces, and attach specific code examples. Method 1: Use the PHP built-in function trim(). The PHP built-in function trim() can remove spaces at both ends of the string (including spaces, tabs, newlines, etc.). It is very convenient and easy to use.
