SvelteKitReference

$app/environment

import { const browser: booleantrue if the app is running in the browser.
browser, const building: booleanSvelteKit analyses your app during the build step by running it. During this process, building is true. This also applies during prerendering.
building, const dev: booleanWhether the dev server is running. This is not guaranteed to correspond to NODE_ENV or MODE.
dev, const version: stringThe value of config.kit.version.name.
version } from '$app/environment';

浏览器

如果应用程序在浏览器中运行。

const 浏览器: boolean;

建筑

SvelteKit 在构建步骤中通过运行它来分析您的应用程序。在这个过程中，构建是正在进行的，true。这也适用于预渲染期间。

const building: boolean;

dev

是否开发服务器正在运行。这并不保证与 NODE_ENV 或 MODE 相对应。

const dev: boolean;

版本

值 of config.kit.version.name.

const 版本：string;

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@sveltejs/kit/vite $app/forms