Replace all string occurrences

Question

I want to replace all the occurrences of [h2][/h2] in a JavaScript string For example, I have

var mystring = 'hii[h2][/h2]';

I want to get -> hii

so far I tried

mystring.replace(/[h2][\/h2]/g, "");

Answer 1

You need to escape the square braces.

 var mystring = 'hii[h2][/h2]'; let string = mystring.replace(/\\[h2\\]\\[\\/h2\\]/g, ''); console.log(string); 

Answer 2

假设这些标签之间没有任何内容，您还需要转义[] 。

mystring.replace(/\[h2]\[\/h2]/g, "");

Answer 3

try this one:

str.replace(/\[h2\]\[\/h2\]/g,"");

note that you have to escape [ and ] if they form part of the text you want to replace otherwise they are interpreted as "character class" markers.

If the [h2] and [/h2] could also appear separate, you could use this one:

str.replace(/\[\/?h2\]/g,"");