Getting the last 3 characters of a string

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Please, how can I extract the last three(3) characters for a changing string in javascript?
lets say:
I have: var name;

name can alsways changed if it is reassigned; I want to get the last three(3) from the right. example if name = "JAMES", I want to get "MES"

Thanks.

Posted 9-Feb-11 6:52am

Bassofa

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Nish Nishant · Answer 1 · 2011-02-09T06:59:00

Solution 1

Use string.substring.

See http://www.w3schools.com/jsref/jsref_substring.asp[^]

Posted 9-Feb-11 6:59am

Nish Nishant

Updated 9-Feb-11 7:00am

v2

Comments

Bassofa 9-Feb-11 13:02pm

Thanks for your response; I have tried that and it doesn't seem to work; I did that earlier..

Nish Nishant 9-Feb-11 13:02pm

Post your code.

Sergey Alexandrovich Kryukov 9-Feb-11 13:06pm

Oh, again... My 5, enough said.
--SA

Sandeep Mewara · Answer 2 · 2011-02-09T07:02:00

Solution 2

Try Javascript substring method[^].

~~BTW, AFAIR, it's not crossbrowser supported. So, do check/use it accordingly~~ Looks like it is supported by all browsers now[^].

Hmmm, try this:

name.substr(-3); // should return MES

Posted 9-Feb-11 7:02am

Sandeep Mewara

Updated 9-Feb-11 7:14am

v3

Comments

Sergey Alexandrovich Kryukov 9-Feb-11 13:08pm

What, "substr" can be not cross-browser? Hm. What should be?
(My 5 anyway).
--SA

Sandeep Mewara 9-Feb-11 13:11pm

Quick Google gave this blog entry: http://www.bloggingdeveloper.com/post/substring-vs-substr-The-Difference-Between-JavaScript-String-Functions.aspx

Last line says, its not. Will share if I come across an authenticated source.

EDIT:
This link says, it all supported now: http://solidlystated.com/scripting/difference-between-javascript-substring-and-substr/
Yep!

Sandeep Mewara 9-Feb-11 13:11pm

And surely, it should had been cross-browser, if not, strange!

Sergey Alexandrovich Kryukov 9-Feb-11 16:33pm

Exactly, that's why I asked. Thank you.
--SA

**Orcun Iyigun** · Answer 3 · 2011-02-09T07:04:00

Solution 3

Check out this web page for substrings method;
http://www.electrictoolbox.com/javascript-substr/[^]

So maybe at first you can get the string length by using name.length and then use the substring method.

Posted 9-Feb-11 7:04am

Orcun Iyigun

Yusuf · Answer 4 · 2011-02-09T07:10:00

Solution 4

Like everyone said, you need substring, but you need to tell it where you want to start. In your case it is length-3

var name = "JAMES";
name.substring(name.length-3);

Posted 9-Feb-11 7:10am

Yusuf

Comments

#realJSOP 9-Feb-11 13:21pm

Proposed as answer