JavaScript to check whether a number is an integer or a floating point count method _javascript tips

This example describes how JavaScript checks whether a number is an integer or a floating point. Share to everyone for your reference. Specifically as follows:

Check for integers:

function Isint (n) {return
typeof n = = ' number ' && n% 1 = 0;
}
Or, this support ie3
function Isint (n) {return
typeof n = = ' number ' && parsefloat (n) = = parseint (n, 1 0) &&!isnan (n);
}

Check for floating point numbers:

function Isfloat (n) {return
n===+n && n!== (n|0);
}

I hope this article will help you with your JavaScript programming.