How does uniapp determine the operating environment?

Uniapp’s method of determining the running environment: You can use [process.env.NODE_ENV] to determine whether the current environment is a development environment or a production environment. The code is [if(process.env.NODE_ENV === 'development'){ console.log].

The operating environment of this tutorial: windows7 system, uni-app2.5.1 version, thinkpad t480 computer.

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How uniapp determines the running environment:

uni-app You can use process.env.NODE_ENV to determine whether the current environment is a development environment or a production environment. Generally used to dynamically switch between connecting to a test server or a production server.

• In HBuilderX, the code compiled by clicking "Run" is the development environment, and the code compiled by clicking "Release" is the production environment

• cli mode is the common compilation environment processing method.

if(process.env.NODE_ENV === 'development'){
    console.log('开发环境')
}else{
    console.log('生产环境')
}

If you need to customize more environments, such as test environments:

• Assuming that you only need to configure a single platform, you can package.json In the configuration, there will be one more in the run and release menu of HBuilderX.

• If it is configured for all platforms, it can be configured in vue-config.js.

Quick code block

Type the code blocks uEnvDev and uEnvProd into HBuilderX to quickly generate the running environment determination code corresponding to development and production.

// uEnvDev
if (process.env.NODE_ENV === 'development') {
    // TODO
}
// uEnvProd
if (process.env.NODE_ENV === 'production') {
    // TODO
}

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