API: The dev Property

• Type: Boolean
• Default: true

Define the development or production mode of Nuxt.js.

This property is overwritten by nuxt commands:

• dev is forced to true with nuxt
• dev is forced to false with nuxt build, nuxt start and nuxt generate

This property should be used when using Nuxt.js programmatically:

Example:

nuxt.config.js

export default {
  dev: (process.env.NODE_ENV !== 'production')
}

server.js

const { Nuxt, Builder } = require('nuxt')
const app = require('express')()
const port = process.env.PORT || 3000
// We instantiate Nuxt.js with the options
const config = require('./nuxt.config.js')
const nuxt = new Nuxt(config)
app.use(nuxt.render)
// Build only in dev mode
if (config.dev) {
  new Builder(nuxt).build()
}
// Listen the server
app.listen(port, '0.0.0.0').then(() => {
  console.log(`Server is listening on port: ${port}`)
})

Then in your package.json:

{
  "scripts": {
    "dev": "node server.js",
    "build": "nuxt build",
    "start": "cross-env NODE_ENV=production node server.js"
  }
}

Note: You'll need to run npm install —save-dev cross-env for the above example to work. If you're not developing on Windows you can leave cross-env out of your start script and set NODE_ENV directly.