Math.E

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

Math.E 静态数据属性表示欧拉数,即自然对数的底数 e,其值约为 2.718。

尝试一下

function compoundOneYear(interestRate, currentVal) {
  return currentVal * Math.E ** interestRate;
}

console.log(Math.E);
// Expected output: 2.718281828459045

console.log((1 + 1 / 1000000) ** 1000000);
// Expected output: 2.718280469 (approximately)

console.log(compoundOneYear(0.05, 100));
// Expected output: 105.12710963760242

𝙼𝚊𝚝𝚑.𝙴=e2.718\mathtt{Math.E} = e \approx 2.718
Math.E 的属性特性
可写
可枚举
可配置

描述

由于 EMath 对象的静态属性,所以应该像这样使用:Math.E,而不是作为你创建的 Math 实例对象的属性(Math 不是构造函数)。

示例

使用 Math.E

以下函数返回 e 的值:

js
function getNapier() {
  return Math.E;
}

getNapier(); // 2.718281828459045

规范

Specification
ECMAScript® 2025 Language Specification
# sec-math.e

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
E

Legend

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Full support
Full support

参见