How to use Number in JavaScript

Posted in JavaScript | JavaScript Objects on August 05, 2019

This article describe about Number() Function in JavaScript.

Number() Function in JavaScript

This function convert the object argument to a number that represents the object's value.

Note: Return NaN, if the value cannot be converted to a legal number.

Syntax

Number(object)

Parameter	Description
object	Optional. JavaScript object, return 0 if no argument specified.

Example

<!DOCTYPE html>

<html>

<body>

var t1 = new Boolean(true);

var t2 = new Boolean(false);

var t3 = new Date();

var t4 = new String("777");

var t5 = new String("777 888");

document.write(Number(t1) + "<br />");

document.write(Number(t2) + "<br />");

document.write(Number(t3) + "<br />");

document.write(Number(t4) + "<br />");

document.write(Number(t5) + "<br />");

</script>

</body>

</html>

Output

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