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@lytjs/common-env

v6.9.6

Published

Environment detection utilities for LytJS

Readme

@lytjs/common-env

环境检测工具,检测当前运行环境(浏览器/Node/SSR)。

安装

pnpm add @lytjs/common-env

API

isBrowser(): boolean

检测当前是否为浏览器环境。通过检查 windowdocumentnavigator 是否存在来判断。

import { isBrowser } from '@lytjs/common-env';

isBrowser(); // 浏览器中: true, Node.js 中: false

isNode(): boolean

检测当前是否为 Node.js 环境。通过检查 process.versions.node 是否存在来判断。

import { isNode } from '@lytjs/common-env';

isNode(); // Node.js 中: true, 浏览器中: false

isSSR(): boolean

检测当前是否为 SSR 环境。

import { isSSR } from '@lytjs/common-env';

isSSR(); // 既非浏览器也非 Node.js 时: true

getEnvInfo(): EnvInfo

获取完整的环境信息对象。

import { getEnvInfo } from '@lytjs/common-env';

const info = getEnvInfo();
// { isBrowser: true, isNode: false, isSSR: false, userAgent: '...' }

边界行为与已知限制

isSSR() 的语义说明

isSSR() 的当前实现定义为 "非浏览器且非 Node.js 的环境"(即 !isBrowser() && !isNode())。这意味着:

| 环境 | isBrowser() | isNode() | isSSR() | | ------------------- | ------------- | ---------- | --------- | | 浏览器 | true | false | false | | Node.js | false | true | false | | Deno / Bun / Worker | false | false | true |

注意:在标准的 Node.js 服务端渲染(SSR)场景中,isSSR() 返回的是 false(因为 Node.js 环境被 isNode() 识别)。如果需要在 Node.js 中区分"SSR 模式"和"CLI 模式",应使用其他方式(例如检查特定的环境变量或上下文标识),而非依赖 isSSR()

License

MIT