How to separate letters and digits from a string in JavaScript

Question

I have a string which is combination of letters and digits. For my application I have to separate a string with letters and digits: ex:If my string is "12jan" i hav to get "12" "jan" seperately..

didnt you just ask this question? look for the answers there you can use the same regular expressions with some minor modification and it will work with javascript aswell stackoverflow.com/questions/4311156/… — Breezer
– Breezer, Commented Nov 30, 2010 at 7:05

Tikhon Jelvis · Accepted Answer · 2010-11-30 07:22:36Z

7

You can always do this if str is your string:

var digits = str.replace(/\D/g, ""),
    letters = str.replace(/[^a-z]/gi, "");

Essentially, what this code does is replace all of the characters that you do not want with the empty string.

\D and [^a-z] are character classes that represent, respectively, all the non-digits and all the non-letters. The g at the end of the two expressions makes them replace all occurrences of the pattern. The i make it case-insensitive, keeping both lower and upper case letters.

answered Nov 30, 2010 at 7:22

Tikhon Jelvis

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Insane Skull · Accepted Answer · 2016-01-29 04:34:40Z

1

Well for the example you gave I would try

parseInt(num)

so if you had parseInt(12Jan); you should get 12.

I am not an expert so I hope this helps.

edited Jan 29, 2016 at 4:34

Insane Skull

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answered Jan 29, 2016 at 4:12

Jamie T

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