The Math.log10()
function returns the base 10 logarithm of a number, that is
Math.log10(x)
x
If the value of x
is less than 0, the return value is always NaN.
Because log10()
is a static method of Math
, you always use it as Math.log10()
, rather than as a method of a Math
object you created (Math
is not a constructor).
Math.log10()
Math.log10(2); // 0.3010299956639812 Math.log10(1); // 0 Math.log10(0); // -Infinity Math.log10(-2); // NaN Math.log10(100000); // 5
This can be emulated with the following function:
Math.log10 = Math.log10 || function(x) { return Math.log(x) / Math.LN10; };
Created by Mozilla Contributors, license: CC-BY-SA 2.5