npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2025 – Pkg Stats / Ryan Hefner

@weplanter/with-env

v1.0.12

Published

一个 npm 命令行工具包,帮助你在执行npm/yarn命令时,根据不同参数可带上不同的环境变量

Readme

with-env

一个 npm 命令行工具包,帮助你在执行npm/yarn命令时,根据不同参数可带上不同的环境变量

使用方式

安装

yarn

yarn add @weplanter/with-env --dev

npm


npm install @weplanter/with-env --save-dev

使用

以 create-react-app 创建的项目举例

项目目录下 package.json 中 scripts 如下


"scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
}

使用 with-env 修改如下


"scripts": {
    "start": "with-env",
    "dev": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
}

执行


// yarn start [其他scripts定义的命令名称] [环境名称, 默认为 dev]

yarn start dev          // process.env.NODE_ENV = 'development'
yarn start dev test     // process.env.NODE_ENV = 'test'
yarn start dev pre      // process.env.NODE_ENV = 'pre-production'
yarn start dev pro      // process.env.NODE_ENV = 'production'

yarn start build        // process.env.NODE_ENV = 'development'
yarn start build test   // process.env.NODE_ENV = 'test'
yarn start build pre    // process.env.NODE_ENV = 'pre-production'
yarn start build pro    // process.env.NODE_ENV = 'production'

配合 webpack 插件 webpack.DefinePlugin 使用,在项目文件中使用对应的变量


const webpack = require('webpack');

export default {
    ...otherWebpackConfig,
    plugins: [
        new webpack.DefinePlugin({
            '__DEV__': process.env.NODE_ENV === 'development',
            '__TEST__': process.env.NODE_ENV === 'test',
            '__PRE_PRO__': process.env.NODE_ENV === 'pre-production',
            '__PRO__': process.env.NODE_ENV === 'production'
        }),
    ] 
}

场景示例


let requestPrefix = '';

if(__DEV__){
    requestPrefix = 'http://some-dev-request-prefix'
}
if(__TEST__){
    requestPrefix = 'http://some-test-request-prefix'
}
if(__PRE_PRO__){
    requestPrefix = 'http://some-pre-production-request-prefix'
}
if(__PRO__){
    requestPrefix = 'http://some-production-request-prefix'
}

const USER_INFO = `${requestPrefix}/users/:user_id`;

fetch(USER_INFO).then(function(response) {
    // do something
})

.withenvrc.js / .withenvrc 配置

Todo...