Javascript Number
The Number object is a wrapper object which allows you to work with numerical values. The number object is created using the Number() constructor.It may be integer or floating-point.
Syntax
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Output
Description
The primary uses of the number object are:
var n=new Number(value);
Examples
<!DOCTYPE html>
<html>
<body>
<script>
var x=100;//integer value
var y=100.7;//floating point value
var z=12e5;//exponent value, output: 1200000
var n=new Number(20);//integer value by number object
document.write(x+" "+y+" "+z+" "+n);
</script>
</body>
</html>
100 100.7 1200000 20
- If argument cannot be converted into a number, it returns NaN (Not a Number).
- In a non-constructor context (i.e., without the new operator), Number can be used to perform a type conversion.
JavaScript Number Constants
| Constant | Description |
|---|---|
| MIN_VALUE | It returns the largest minimum value. |
| MAX_VALUE | It returns the largest maximum value. |
| POSITIVE_INFINITY | It returns the positive infinity, overflow value. |
| NEGATIVE_INFINITY | It returns the negative infinity, overflow value. |
| NaN | It represent "Not a Number" value. |