regex - replace the first word of a javascript string using regular expression - Stack Overflow

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In the string

somethingcryptic12A@#$~` abc def@#

, I would like to replace the first word by new so that it would then be new

new abc def@#

. How can I do this using regular expression. I have made the first word cryptic to indicate that it can contain any character and any number of characters. It's the first word if there is a space after it.

In the string

somethingcryptic12A@#$~` abc def@#

, I would like to replace the first word by new so that it would then be new

new abc def@#

. How can I do this using regular expression. I have made the first word cryptic to indicate that it can contain any character and any number of characters. It's the first word if there is a space after it.

• javascript
• regex

Share Improve this question Follow asked Feb 1, 2013 at 19:22 dreamerkumardreamerkumar 1,55011 gold badge1818 silver badges2828 bronze badges 1

• In my defense, I was able to e up with the full solution after some initial help from Some1. I had tried some solutions like [a-zA-Z] but that wouldn't work for all scenarios. – dreamerkumar Commented Feb 1, 2013 at 19:29

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1 Answer 1

Sorted by: Reset to default 9

You can use this regular expression

^\S+

^ represents start of the string

\S matches any character except space..

+ matches preceding character 1 to many times

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