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

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
– Pedantic, Commented Sep 16, 2013 at 15:24

NullUserException · Accepted Answer · 2013-09-16 16:51:49Z

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, 2013 at 16:51

NullUserException

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answered Sep 16, 2013 at 15:27

Guffa

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