How to allow only Numerical number of range 0-999 using jQuery? If number is out of range it should give an error? I tried in a general way but it's not working. The code is given below.
function checkIsNumeric(value){
if(isNaN(value) && (value>1000 || value<0)) {
return 0;
}
return true;
}
function checkIsNumeric( value ){
if ( isNaN( value ) || value > 999 || value < 0 ) {
return 0;
}
return true;
}
Or:
function checkIsNumeric( value ){
return ( isNaN( value ) || value > 999 || value < 0 )? 0 : true;
}
Couple issues.
value > 1000 will not capture values of 1000 which you don't want. Change that to >=.
So let's say we make the above change and put in a value of 1000. isNaN will return false which is what we would expect. (value>=1000 || value<0) will return true which is also what we want. However, since you and'ed these two together the result will be false (false && true == false) and the if-statement will be ignored.
What you want is something more like this:
function checkIsNumeric( value ) {
if( isNaN( value ) || value >= 1000 || value < 0 )
{
return false;
}
return true;
}
function checkIsNumeric(value){
if(value > 0 && value < 1000){
alert('Within range.')
return;
}
alert('Enter value between 0-999.');
}
You can also turn the parameter into an integer by:
parseInt(value, 10);
Or float:
parseFloat(value);
if(checkIsNumberic(your_var)){ /* is a number */ } else { $('.your-error-div').text('Enter value of range 0-999'); }