Question

Greetings JavaScript and regular expression gurus,

I want to return all matches in an input string that are 6-digit hexadecimal numbers with any amount of white space in between. For example, “333333 e1e1e1 f4f435” should return an array:

array[0] = 333333  
array[1] = e1e1e1  
array[2] = f4f435

Here is what I have, but it isn’t quite right– I’m not clear how to get the optional white space in there, and I’m only getting one match.

colorValuesArray = colorValues.match(/[0-9A-Fa-f]{6}/);

Thanks for your help,

-NorthK

Answer 1

Use the g flag to match globally:

/[0-9A-Fa-f]{6}/g

Another good enhancement would be adding word boundaries:

/\b[0-9A-Fa-f]{6}\b/g

If you like you could also set the i flag for case insensitive matching:

/\b[0-9A-F]{6}\b/gi