How can I check if a string is a float?

Question

I am passing in a parameter called value. I\'d like to know if value is a float. So far, I have the following:

if (!isNaN(value))
{
    alert(\'this is a num         


        

Answer 1

function checkFloat(value) {
    let parsed = Number.parseFloat(value);
    return (!Number.isNaN(parsed)) && (!Number.isInteger(parsed))
}