how to restrict user to enter first 4 are alphabtes and remaining are numerics in javascript onkeypress event

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how to restrict user to enter first 4 are alphabtes and remaining are numerics in javascript onkeypress event

Posted 25-Sep-14 19:36pm

Vijay M

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Sinisa Hajnal 26-Sep-14 1:58am

Why not simply validate final entry after the user enters whole field? This way, you would need to hold an array of typed in characters (or check on each character from the start)and check on each press...

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JR009 · Answer 1 · 2014-09-25T19:59:00

Solution 1

Hi Vijay,

You can do this with javascript or jquery also. Count the length of textbox text and if it is less than 4 then check its keycode. Then only allow if it is alphabates.

Check the following fiddle :

http://jsfiddle.net/z721z9wy/[^]

Posted 25-Sep-14 19:59pm

JR009