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Version: 3.13.0

Math.log10()

The Math.log10() function returns the base 10 logarithm of a number.

Syntax​

Math.log10(x)

Parameters​

  • x
    • : A number greater than or equal to 0.

Return value​

The base 10 logarithm of x. If x < 0, returns NaN.

Description​

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).

This function is the equivalent of Math.log(x) / Math.log(10). For log10(e), use the constant Math.LOG10E, which is 1 / Math.LN10.