Regex matches the first characters of a string

Question

I'm trying to create a regex that matches the first 3 characters of a string,

If I have the string ABCFFFF, I want to check that the first 3 characters are ABC.

Answer 1

It's pretty simple, the template will be ^ABC

As others point out, using regular expressions for such a task is redundant. Any regular expression programming language can do this better with simple string manipulation.

Answer 2

A simple regex will work:

 /^ABC/ 

But this is a good use case for regex, I'm not sure. Consider using substring in any language / platform that you are using.

Answer 3

"^ ABC" should work. '^' matches the beginning in most regular expression implementations.