Javascript 替换所有出现的

Question

I need to convert a sub-string of a string with a character in javascript.

I used following code to do that

av_text_to_display = av_text_to_display.replace("a*^!", "'");

but it can only replace first occurrence. I used following code for all occurrences

av_text_to_display = av_text_to_display.replace("a*^!", "'", "g");

but it is not a standard way. What is the standard way to do that?

Answer 1

您正在使用字符串而不是 RegExp 进行搜索，它可能应该是：

av_text_to_display.replace(/a*\^!/g, "'");

Answer 2

If you're trying to replace that literal string, and not a regex matching that string, use an escaped regex:

av_text_to_display = av_text_to_display.replace(/a\*\^!/g, "'");

 var av_text_to_display = "here: a*^!, there: a*^! and also here, twice: a*^!a*^!"; av_text_to_display = av_text_to_display.replace(/a\\*\\^!/g, "'"); console.log(av_text_to_display);

Answer 3

If you don't want to use regex you can use the both split and join functions to do this :

your_string.split("a").join("'");

Hope this helps.