set node env code example

Example 1: npm node env

require('dotenv').config()

Example 2: set node process production

{
  ...
  "scripts": {
    "start": "NODE_ENV=production node ./app"
  }
  ...
}

Example 3: set node process production

plugins: [
  new webpack.DefinePlugin({
    'process.env.NODE_ENV': '"production"',
  })
]

Example 4: node how to set environment variable

// get an environment variableexport const token = process.env['API_TOKEN'];// set an environment variable at runtimeprocess.env['RANDOM_ID'] = Math.random();

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