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validation and formatting using javascript

Posted on 2014-11-04
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Last Modified: 2014-11-06
Hi Experts,

I want to validate and  format input value into 2 decimals  using javascript.Here is my requriement, user can enter maximum 4 digits and want to satisfy all the below scenarios.I am looking for javascript code for the below requirement

i/p         o/p

0->        .00
1->        .01
22->      .22
888->    8.88
2222->  22.22
.1->         .10
.66->      .66

.345->Invalid
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Question by:ksd123
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3 Comments
 
LVL 82

Accepted Solution

by:
leakim971 earned 2000 total points
ID: 40423130
Test page : http://jsfiddle.net/sjde9z9k/
function c(n) {
    var x = "" + n;
    if(x.indexOf(".")<0) {
        x = x / 100;
    }
    return (x * 1).toFixed(2);
}

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Author Comment

by:ksd123
ID: 40423145
Thank you so much and it's working fine. Actually the input is quantity field and  user can't enter more than 99.99 ie. maximum 4 digits, how can I restrict in the above logic to enter max 4 digits only?
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LVL 82

Expert Comment

by:leakim971
ID: 40423611
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