Math.LN10
Math.LN10
Math.LN10
属性表示 10 的自然对数,约为 2.302:
Math.LN10=ln(10)≈2.302\mathtt{\mi{Math.LN10}} = \ln(10) \approx 2.302
| Math.LN10
属性的属性特性 |
|:----|
| Writable | no |
| Enumerable | no |
| Configurable | no |
描述
由于LN10
是Math
的静态属性,所以应该像这样使用:Math.LN10
,而不是作为你创建的 Math
实例的属性(Math
不是构造函数)。
示例
使用Math.LN10
下面的函数返回 10 的自然对数:
function getNatLog10() {
return Math.LN10;
}
getNatLog10( // 2.302585092994046
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.LN10' in that specification. | Standard | |
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'Math.LN10' in that specification. | Standard | |
ECMAScript Latest Draft (ECMA-262)The definition of 'Math.LN10' 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) |