Pasrsign a Text Box

[thanawala27]

thanawala27
Newbie
22 Posts May 21st, 2007
08:10 PM
#1


Parse a textbox
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Hi,
I had a Question!

i have a textbox, where i have filled some value.

say "ABBC2122"

now i want to check whether the value entered starts with ABBC or not.
In short, I want to parse the Value of the textbox and match it with another string.

Any Advice will be appreciated

Thanks

Ravi

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Reply
r035198x
Admin
4,690 Posts Yesterday
06:15 AM
#2


Re: Parse a textbox
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Quote:
Originally Posted by thanawala27
Hi,
I had a Question!

i have a textbox, where i have filled some value.

say "ABBC2122"

now i want to check whether the value entered starts with ABBC or not.
In short, I want to parse the Value of the textbox and match it with another string.

Any Advice will be appreciated

Thanks

Ravi


I think there's a startsWith method that you can use, otherwise a simple regular expression will work for you.

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Report Reply
gits
Member
41 Posts Yesterday
06:33 AM
#3


Re: Parse a textbox
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yep ... an easy way would be to use an RegEx ... have a look at the following example:


Code: ( javascript )
// your textbox-value
var foo = "ABBC2122";

// test it with a simple RegEx - i use the literals here and call the testmethod
// instantly on var foo
var check = /^ABBC/.test(foo);

// check is now true ;)

// you may also use the constructor for the RegEx and ref it with a variable
// for later reuse and/or !! if you want to create a RegEx with a variable
// new RegExp(yourvar, options)
var re = new RegExp('^ABBC');

// now we use re and call the testmethod
check = re.test(foo);

// of course: check is true again


hope this helps ... and kind regards

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thanawala27
Newbie
22 Posts Today
02:11 PM
#4


Re: Parse a textbox
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hey guys,
thanks for ur replies

Gits, i tried wot u said, n yes it worked..
now i met with another issue..
now i want the end a string with 5 digits
so my valid string shud be "ABBC65278"...
ABCC shud be followed by only 5 digits....anything else is an invalid string

i think we need ot break the string for this...break the first 4 and the last 5...then do the checking...

can u guys help me out here

Thanks

Ravi

[drhowarddrfine]

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