check whether the number having is fractional value or not in java script

try this
HTH
Ivo Stoykov

var val = 74.5;
alert((val % 10 != 0 ? 'has ' : '')+'fraction') ;

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sorry mine code has error. Should be

var val = 74;
WScript.Echo((val % 2 != 0 ? 'has' : 'no')+' fraction') ;

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why WScript.Echo???
alert will do just fine

@gurvinder

<script>
function check(val1) {
  if ( Math.round(parseInt( val1)) != val1) {
    alert("it is a fractional value");
  }
  else {
    alert("It is not");
  }
}
check("09"); // oops?
</script>

This is nicer to read:
String(val).indexOf('.')
than
(val + "").indexOf('.')

but this will not tell me if this is a valid number at first place since 1.1.1.3 will also qualify as a fraction

is typecasting is supported in javascript also????

sorry, it has to be
function check(val1)
{
 alert(Math.round(parseInt( val1,10)));
 if ( Math.round(parseInt( val1, 10)) != val1) {
   alert("it is a fractional value");
 }
 else {
   alert("It is not");
 }
}

Yep :)
08 and 09 are invalid octal numbers

Here 08 and 09 are considered a decimal number and v r checking 4r number is fraction or not, not 4r the octal or hexadecimal number.

My comment was directed at Gurvinder, as a response to his response on my comment http:#a26198191
Your script would work since you a) do a test for isNaN and b) test the string for a "."
However your script also tells me 1. is a fraction..

alert("1. is a fraction:"+isFraction("1."));

but if i use " Math.round((parseInt( val,10))+"") != val" then for "1.0' it give it  1.0 is not a fraction

similarly 1.0 will give a fraction if we check for the index of '.'

will this not work
str= "1.0";
var myArray = str.match(/[0-9]*\.[1-9][0-9]*/g)

What is the point of
 if(Boolean(val.substring(val.indexOf(val)+1, val.length)))
???

if condition should be if(Boolean(val.substring(val.indexOf(val)+1, val.length-1))) not
if(Boolean(val.substring(val.indexOf(val)+1, val.length)))

to check for the value like "1."

Sorry, does not make any sense to me

any update !!

What do you mean.

Take one and try it, give points if happy.
I believe mine is complete http:a26200697
 

sorry mplungjan i select ur code as multiple selection but its not apper here i dont know how to revert back the point ..
can u put request attention i will assign point to u !! ( ur code also helped me )

Thanks .....