JavaScript log() Method

Return the natural logarithm of the number "2":

Math.log(2);

More "Try it Yourself" examples below.

Definition and Usage

The log() method returns the natural logarithm (base E) of a number.

Method
log()	Yes	Yes	Yes	Yes	Yes

Math.log(x)

Parameter	Description
x	Required. A number

Return Value:	A Number, representing the natural logarithm of a specified number If the number negative, NaN is returned If the number is 0, -Infinity is returned
JavaScript Version:	ECMAScript 1

Use the log() method on different numbers:

var a = Math.log(2.7183);
var b = Math.log(2);
var c = Math.log(1);
var d = Math.log(0);
var e = Math.log(-1);