Math.log10()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
概述
Math.log10() 函数返回一个数字以 10 为底的对数。
语法
Math.log10(x)
参数
x-
任意数字。
描述
如果传入的参数小于 0，则返回 NaN.
示例
js
Math.log10(10); // 1
Math.log10(100); // 2
Math.log10("100"); // 2
Math.log10(1); // 0
Math.log10(0); // -Infinity
Math.log10(-2); // NaN
Math.log10("foo"); // NaN
规范
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-math.log10 |