Math.SQRT2
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.
概述
Math.SQRT2
属性表示 2 的平方根,约为 1.414:
描述
由于 SQRT2
是 Math
的静态属性,所以应该像这样使用:Math.SQRT2
,而不是作为你创建的 Math
实例的属性(Math
不是构造函数)。
示例
示例:使用 Math.SQRT2
下面的函数返回 2 的平方根:
js
function getRoot2() {
return Math.SQRT2;
}
getRoot2(); // 1.4142135623730951
规范
Specification |
---|
ECMAScript® 2025 Language Specification # sec-math.sqrt2 |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
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SQRT2 |
Legend
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- Full support
- Full support
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