JavaScript Math log() Method Last Updated : 29 Jul, 2024 Comments Improve Suggest changes Like Article Like Report The JavaScript Math log( ) Method is used to return the natural logarithm (base e) of a number. The JavaScript Math.log() method is equivalent to ln(x) in mathematics. If the value of x is negative, then the math.log() method return NaN. The log() is a static method of Math, therefore, it is always used as Math.log(), rather than as a method of a Math object created. Syntax:Math.log(value)Parameters:This method accepts a single parameter as mentioned above and described below:value: This parameter holds a number whose natural logarithm you want to find.Return value:The Math.log() method returns the natural logarithm given number.Example 1: Below are examples of the Math log() Method. JavaScript console.log("When zero is passed as a parameter: " + Math.log(0)); Output:When zero is passed as a parameter: -Infinity Example 2: When "-1" is passed as a parameter. javascript console.log("Result: " + Math.log(-1)); Output:Output : NaNExample 3: When "10" is passed as a parameter. javascript console.log("Result : " + Math.log(10)); Output:Result : 2.302585092994046Example 4: Calculating Math.log() with a different base. For finding the logarithm of 8 with base 2, execute the math.log() method in the following way: javascript console.log("Result : " + Math.log(8)/Math.log(2)); Output:Output : 3We have a complete list of Javascript Math Objects methods, to check those please go through this Javascript Math Object Complete reference article.Supported Browsers:Chrome 51 Edge 15 Firefox 54 Safari 10 Opera 38 Comment More infoAdvertise with us S Shubrodeep Banerjee Follow Improve Article Tags : Misc JavaScript Web Technologies javascript-math JavaScript-Methods +1 More Practice Tags : Misc Similar Reads JavaScript Math E Property The Math.E is a property in JavaScript that simply returns the value of Euler's Number, which is nothing but just has a base of the natural logarithm. 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