Kindly suggest Javascript code for Alpha-Numeric Validation of a number ?

Saraswati Mohanty · 22nd Apr 2016 .

Rojalin Patra · 22nd Apr 2016 .

---------------------Javascript Code ----------------------------------------------

function alphanumeric()

{

var letterNumber = /^[0-9a-zA-Z]+$/;

var numm=document.getElementById('res_name').value;

if((numm.match(letterNumber)))

{

document.getElementById('err1').innerHTML="";

return true;

}

else

{

document.getElementById('res_name').focus();

document.getElementById('err1').innerHTML="Only Enter Alpha Numeric Values";

return false;

}

</script>

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