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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LOG10EMath 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

SpecificationStatusComment
ECMAScript 1st Edition (ECMA-262)StandardInitial 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

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