To check if a string is a float with JavaScript, we can use the isNaN function.
For instance, we write
if (!isNaN(value) && value.toString().includes(".")) {
console.log("this is a float.");
}
to check if value is a number by negating the boolean returned by isNaN.
And then we check if a decimal point is included by converting value to a string with toString and call the includes method on the string.
If both are true, then value is a float.
