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Posted: **22 Nov 2020, 13:19**

I’m trying to replace all spaces within a string with hyphens.
I tried this:

let str ='This is my text';
str = str.replace(/\s/, '-');
console.log(str);  // This-is my text

But it only replaces the first instance of a space and not the ones after it.
What is the regex to make it replace all matches in string?

Posted: **22 Nov 2020, 14:23**

Add the global search flag (/g ) to your regex to match all occurrences.

let str ='This is my text';
str = str.replace(/\s/g, '-');
console.log(str);  // This-is-my-text

Make regex replace() work on all matches