如何从jQuery中的字符串中删除特殊字符，如$，@，％

Question

I have a string and I want to remove special characters like $, @, % from it.

var str = 'The student have 100% of attendance in @school';

How to remove % and $ or other special characters from above string using jquery. Thank you.

Answer 1

If you know the characters you want to exclude, use a regular expression to replace them with the empty string:

 var str = 'The student have 100% of attendance in @school'; console.log( str.replace(/[$@%]/g, '') ); 

Or, if you don't want to include any special characters at all, decide which characters you do want to include, and use a negative character set instead:

 var str = 'The student have 100% of attendance in @school'; console.log( str.replace(/[^a-z0-9,. ]/gi, '') ); 

The pattern

[^a-z0-9,. ]

means: match any character other than an alphanumeric character, or a comma, or a period, or a space (and it will be replaced with '' , the empty string, and removed).

Answer 2

您可以使用正则表达式替换从字符串中删除特殊字符：

str.replace(/[^a-z0-9\s]/gi, '')

Answer 3

To remove special characters from the string we can use string replace function in javascript .

Eg.

var str = 'The student have 100% of attendance in @school';

alert(str.replace(/[^a-zA-Z ]/g, ""));

This will remove all special character except space

Answer 4

You should explore Regex.

Try this:

 var str = 'The student have 100% of attendance in @school'; str= str.replace(/[^\\w\\s]/gi, '') document.write(str); 

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