how to avoid negative,float,and decimal values in form input using javascript validation?

Question

I want to avoid negative values and decimal values in form input, like 1.25, 4.5 etc using javascript validation.

For negative numbers I am using type="number" and min="0" in input. But how to handle decimal values?

Any help would be great

negative, decimal and float? and please share the code. I have a feeling that by decimal you mean floating point numbers? — Amresh Venugopal, Apr 28 '16 at 11:58
@Amresh venugopal For normal form hope need not to share the code. — Deepak Jawalkar, Apr 28 '16 at 12:00
See http://stackoverflow.com/questions/19011861/is-there-a-float-input-type-in-html5 — iainn, Apr 28 '16 at 12:10
@amresh venugopal how can i restrict if an user enters negative the should not be submitted unless he corrects the input? — Deepak Jawalkar, Apr 30 '16 at 13:09
@DeepakJawalkar does [this](http://stackoverflow.com/questions/3350247/how-to-prevent-form-from-being-submitted) help? — Amresh Venugopal, Apr 30 '16 at 13:25

score 0 · Accepted Answer · answered Apr 28 '16 at 12:06

0

The HTML5 support for the in-form validation might not be available across all browsers.

if(number !== parseInt(number,10)){
  //detects floating point numbers like 1.3  
} else if (number > -1) {
  // detects negative numbers
}

answered Apr 28 '16 at 12:06

Amresh Venugopal

1 Answers1