How to find location of third "_" in a string - JavaScript

Question

I have a JavaScript variable which contains something like "fld_34_46_name". I need to be able to find the location of the THIRD _. The numbers, and name are not always the same (so, the string might also look like "fld_545425_9075_different name_test").

Is this possible? How could I do it?

Is the format always the same? Would `lastIndexOf('_')` work? — Pedantic, Sep 16 '13 at 15:24

score 4 · Accepted Answer · edited Sep 16 '13 at 16:51

4

Use the indexOf method three times:

var i = s.indexOf('_');
i = s.indexOf('_', i + 1);
i = s.indexOf('_', i + 1);

Note: If the string might contain fewer than three underscores, you would need to check for -1 after each time.

edited Sep 16 '13 at 16:51

NullUserException

81,190
27
202
228

answered Sep 16 '13 at 15:27

Guffa

666,277
106
705
986

How to find location of third "_" in a string - JavaScript

1 Answers1