How to regularly replace non-Chinese characters in javascript

In JavaScript, you can use the replace() function with the regular expression "/[u4e00-u9fa5|,] /ig" to find all non-Chinese characters in the string and replace them with other specified ones. Value, syntax "String object.replace(/[u4e00-u9fa5|,] /ig,'Specify replacement value')".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

In JavaScript, you can use the replace() function with regular expressions to replace non-Chinese characters.

Thereplace() method is used to replace some characters with other characters in a string, or replace a substring that matches a regular expression.

string.replace(searchvalue,newvalue)

Parameter	Description
searchvalue	Required . A RegExp object that specifies the substring or pattern to be replaced. Note that if the value is a string, it is retrieved as a literal literal pattern rather than first being converted to a RegExp object.
newvalue	Required. A string value. Specifies functions for replacing text or generating replacement text.

Return value: a new string obtained by replacing the first match or all matches of regexp with replacement.

Example: Use the replace() function to replace non-Chinese characters

The regular expression used is: /[u4e00-u9fa5| ,] /ig

Implementation code:

var str="a你b好7dfhg呀89";
console.log("原字符串： "+str);
var value=str.replace(/[u4e00-u9fa5|,]+/ig,' ');
console.log("正则替换后： "+value);

Extended knowledge: regular replacement of Chinese characters

The regular expression used is: /[^u4e00-u9fa5|,] /

Implementation code:

var str="a你b好7dfhg呀89";
console.log("原字符串： "+str);
var value=str.replace(/[^u4e00-u9fa5|,]+/ig,' ');
console.log("正则替换后： "+value);

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