Math.LOG10E
Math.LOG10E
Math.LOG10E
属性表示以 10 为底数,e 的对数,约为 0.434:
Math.LOG10E=log10(e)≈0.434\mathtt{\mi{Math.LOG10E}} = \log_10(e) \approx 0.434
| Math.LOG10E
属性的属性特性 |
|:----|
| Writable | no |
| Enumerable | no |
| Configurable | no |
描述
由于LOG10E
是Math
的静态属性,所以应该像这样使用:Math.LOG10E
,而不是作为你创建的 Math
实例的属性(Math
不是一个构造函数)。
示例
使用Math.LOG10E
下面的函数返回以 10为底数,E的对数:
function getLog10e() {
return Math.LOG10E;
}
getLog10e( // 0.4342944819032518
规范
Specification | Status | Comment |
---|---|---|
ECMAScript 1st Edition (ECMA-262) | Standard | Initial definition. Implemented in JavaScript 1.0. |
ECMAScript 5.1 (ECMA-262)The definition of 'Math.LOG10E' in that specification. | Standard | |
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'Math.LOG10E' in that specification. | Standard | |
ECMAScript Latest Draft (ECMA-262)The definition of 'Math.LOG10E' in that specification. | Draft | |
浏览器兼容性
Feature | Chrome | Firefox | Edge | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic Support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |