javascript - Replace method doesn't work

Question

I want to replace the smart quotes like ‘, ’, “ and ” to regular quotes. Also, I wanted to replace the ?, ? and ?. I used the following code. But it doesn't help. Kindly help me to resolve this issue.

str.replace(/[“”]/g, '"');
str.replace(/[‘’]/g, "'");

question from:https://stackoverflow.com/questions/65557872/cant-replace-n-by-n-in-a-string-in-typescript

Answer 1

Use:

str = str.replace(/[“”]/g, '"');
str = str.replace(/[‘’]/g, "'");

or to do it in one statement:

str = str.replace(/[“”]/g, '"').replace(/[‘’]/g,"'");

In JavaScript (as in many other languages) strings are immutable - string "replacement" methods actually just return the new string instead of modifying the string in place.

The MDN JavaScript reference entry for replace states:

Returns a new string with some or all matches of a pattern replaced by a replacement.

…

This method does not change the String object it is called on. It simply returns a new string.