How to use isFinite in JavaScript

Posted in JavaScript | JavaScript Objects on August 05, 2019

This article describe about isFinite() Function in JavaScript.

isFinite() Function in JavaScript

This function define whether a number is finite, legal number.

Note: isFinite() function returns false if the value is +infinity, -infinity or NaN.

Syntax

isFinite(value)

Parameter	Descriptiojn
vale	Required. value for tested.

Example

<!DOCTYPE html>

<html>

<body>

document.write(isFinite(520) + "<br />");

document.write(isFinite(-5.20) + "<br />");

document.write(isFinite(15-5) + "<br />");

document.write(isFinite(0) + "<br />");

document.write(isFinite("Hello world") + "<br />");

document.write(isFinite("2012/08/06") + "<br />");

</script>

</body>

</html>

Output

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