Validating Integer

[JPhilS]

hi everyone....

i have a problem in javascript as to validating integer before submiting it.

[dmjpro]

hi everyone....

i have a problem in javascript as to validating integer before submiting it.

 <form name = "test_form" onsubmit = "return validate()">
 <input type = text name = "integer1">
 </form>
 

 function validate()
 {
  if(document.test_form.integer1.value /*validating condition*/) return true;
  else return false;  
 }
 

Kind regards,
Dmjpro.

[acoder]

Do you want to allow only non-negative integers or any integer?

For any integer, use parseInt() to parse. You can use isNaN() to check that the number is invalid.

[gits]

hi ...

another alternative would be to use regEx for that, have a look at the following example, that matches all positve integers:

// var val will have true assigned in case of positive ints
// otherwise it will be false
// note: string_value is the value you want to test
var val = /^\d+$/.test(string_value);

kind regards