Question

I need to find in a string the first occurrence (if exists) of 4 consecutive numbers.

For example:

Hello6326 -> 6326
Tomo3753rrow -> 3753
23Thankyou -> (nothing)
1121 -> 1121

I know that I have to use the regexp, I tried different solutions but without luck.

Answer 1

/\d{4}/g

Sample:

    var str:String = "Hello6326 -> 6326 Tomo3753rrow -> 3753 23Thankyou -> nothing 1121 -> 1121";
    var res:Array = str.match(/\d{4}/g);
    trace(res);

Output:

6326,6326,3753,3753,1121,1121