to check float values in javascript, any fun??

[popamit60]

Tell me Guys , If there is any Fun to check float numbers in javascript ??


Tell me d solution


Thanks
Amit

[acoder]

parseFloat will convert a string into a floating point number.

[rajendar434]

hey man
here is the solution

String.prototype.contains = function(t) { 
return this.indexOf(t) >= 0 ? true : false ;
};
var x=12.34;
function valid()
{
     if(x.contains('.'))
    {
         alert('please enter integer only');
         return false;
      }
}

[hsriat]

hey man
here is the solution

String.prototype.contains = function(t) { 
return this.indexOf(t) >= 0 ? true : false ;
};
var x=12.34;
function valid()
{
     if(x.contains('.'))
    {
         alert('please enter integer only');
         return false;
      }
}

I don't see any need of such a function when JS has inbuilt function like parseInt and match.

if (input != parseInt(input))
alert('Hey dude, I told ya to enter integer only! Can\'t you read?');

OR

if (!input.match(/^[0-9]+$/))
alert('huh!.. enter an integer value, you.. ');

PS: OP can use parseFloat to check if it a floating value.

[gits]

as far as i could see the shown contains() method would even return true when it would check:

var x = 'foo.bar';

kind regards

[hsriat]

as far as i could see the shown contains() method would even return true when it would check:

var x = 'foo.bar';

kind regards

Apart from that, if input is "foo", it would get validated.

[acoder]

One more problem: x is not a string.

[hsriat]

aww.... we guys are so bad. We should welcome him instead of doing all this.

Hey Rajendar, welcome to bytes!
Keep posting mate.
:)

[r035198x]

aww.... we guys are so bad. We should welcome him instead of doing all this.

Hey Rajendar, welcome to bytes!
Keep posting mate.
:)

You started it.

[hsriat]

You started it.

My apologies... I'll rephrase it... :)

I am such a bad guy. I should welcome him instead of starting all this.

Regards,
Harpreet