Unexpected result using very simple regexp in javascript

Question

I'm writing this simple regexp in Javascript

str = "1-2-3-456789";
re = /(\d+)/;
found = str.match(re);
alert(found);

I'm waiting for an array with 1,2,3,456789 but the result is 1,1 Why??

Madara's Ghost · Accepted Answer · 2012-02-13 21:13:08Z

2

Try adding the g (global) flag to your pattern.

re = /(\d+)/g;

Otherwise it would stop at the first match, in which case the return would be 1 (for the whole match), 1 (the control group).

answered Feb 13, 2012 at 21:13

Madara's Ghost

176k52 gold badges274 silver badges314 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

As a rule of thumb, when you start making mistakes like these, it's time to hit the bed.