JavaScript Math.log1p()
Examples
let a = Math.log1p(2.7183);
let b = Math.log1p(2);
let c = Math.log1p(1);
let d = Math.log1p(0);
let e = Math.log1p(-1);
Try it Yourself »
Definition and Usage
The Math.log1p() method returns the natural logarithm (base E) of 1 + a number.
Browser Support
Math.log1p() is an ECMAScript6 (ES6) feature.
ES6 (JavaScript 2015) is supported in all modern browsers:
| Chrome | Edge | Firefox | Safari | Opera |
| Yes | Yes | Yes | Yes | Yes |
Math.log1p() is not supported in Internet Explorer 11 (or earlier).
Syntax
Math.log1p(x)
Parameters
| Parameter | Description |
|---|---|
| x | Required. A number. |
Return Value
| A number representing the natural logarithm (base E) of 1 + the number. If the number is -1, -Infinity is returned. If the number is less than -1, NaN is returned. |
