--- title: Math.log10() slug: Web/JavaScript/Reference/Global_Objects/Math/log10 translation_of: Web/JavaScript/Reference/Global_Objects/Math/log10 ---
Math.log10()
函数返回一个数字以 10 为底的对数.
Math.log10(x)
x
如果传入的参数小于 0, 则返回 NaN.
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
Specification | Status | Comment |
---|---|---|
{{SpecName('ES6', '#sec-math.log10', 'Math.log10')}} | {{Spec2('ES6')}} | Initial definition. |
{{ CompatibilityTable() }}
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | {{CompatNo}} | {{CompatGeckoDesktop("25")}} | {{CompatNo}} | {{CompatNo}} | {{CompatNo}} |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic support | {{CompatNo}} | {{CompatNo}} | {{CompatGeckoMobile("25")}} | {{CompatNo}} | {{CompatNo}} | {{CompatNo}} |