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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

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 Status Comment
ECMAScript 2015 (6th Edition, ECMA-262)
Math.log10
Standard Initial definition.

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

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