JavaScript Number Properties and Methods
JavaScript Number Properties
- These number methods can be used on all JavaScript numbers.
| Property | Description |
|---|---|
| EPSILON | The difference between 1 and the smallest JS number. |
| MAX_VALUE | The largest number possible in JavaScript |
| MIN_VALUE | The smallest number possible in JavaScript |
| MAX_SAFE_INTEGER | The maximum safe integer (25353 - 1) |
| MIN_SAFE_INTEGER | The minimum safe integer -(25353 - 1) |
| POSITIVE_INFINITY | Infinity (returned on overflow) |
| NEGATIVE_INFINITY | Negative infinity (returned on overflow) |
| NaN | A "Not-a-Number" value |
JavaScript EPSILON
- Number.EPSILON represents the difference between 1 and the smallest floating point number.
Sample Code
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Numbers</h1>
<h2>The EPSILON Property</h2>
<p>The difference between 1 and the smallest floating point number in JavaScript is:</p>
<p id="demo"></p>
<script>
let a = Number.EPSILON;
document.getElementById("demo").innerHTML = a;
</script>
</body>
</html>
Output
JavaScript Numbers
The EPSILON Property
The difference between 1 and the smallest floating point number in JavaScript is:
2.220446049250313e-16
JavaScript MAX_VALUE
- Number.MAX_VALUE is a constant representing the largest possible number in JavaScript
Sample Code
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Numbers</h1>
<h2>The MAX_VALUE Property</h2>
<p>The largest possible number in JavaScript is:</p>
<p id="demo"></p>
<script>
let x = Number.MAX_VALUE;
document.getElementById("demo").innerHTML = x;
</script>
</body>
</html>
Output
JavaScript Numbers
The MAX_VALUE Property
The largest possible number in JavaScript is:
1.7976931348623157e+308
Number Properties Cannot be Used on Variables
- Number properties belong to the JavaScript Number Object.
- Using a Number property on a variable, or value, will return undefined
Sample Code
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Number Properties</h1>
<p>Using a Number property on a variable, or value, will return undefined:</p>
<p id="demo"></p>
<script>
let x = 6;
document.getElementById("demo").innerHTML = x.MAX_VALUE;
</script>
</body>
</html>
Output
JavaScript Number Properties
Using a Number property on a variable, or value, will return undefined:
undefined
JavaScript MAX_SAFE_INTEGER
- Number.MAX_SAFE_INTEGER represents the maximum safe integer in JavaScript. Number.MAX_SAFE_INTEGER is (253 - 1).
Sample Code
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Numbers</h1>
<h2>The MAX_SAFE_INTEGER Property</h2>
<p>The maximum safe integer in JavaScript is:</p>
<p id="demo"></p>
<script>
let x = Number.MAX_SAFE_INTEGER;
document.getElementById("demo").innerHTML = x;
</script>
</body>
</html>
Output
JavaScript Numbers
The MAX_SAFE_INTEGER Property
The maximum safe integer in JavaScript is:
9007199254740991
JavaScript MIN_SAFE_INTEGER
- Number.MIN_SAFE_INTEGER represents the minimum safe integer in JavaScript. Number.MIN_SAFE_INTEGER is -(253 - 1).
Sample Code
<!DOCTYPE html>
<html>
<body>
<h1>JavaScript Numbers</h1>
<h2>The MIN_SAFE_INTEGER Property</h2>
<p>The minimum safe integer in JavaScript is:</p>
<p id="demo"></p>
<script>
let x = Number.MIN_SAFE_INTEGER;
document.getElementById("demo").innerHTML = x;
</script>
</body>
</html>
Output
JavaScript Numbers
The MIN_SAFE_INTEGER Property
The minimum safe integer in JavaScript is:
-9007199254740991