How to use jiti.js.

config.js

export default {
  build:{
    output:"./"
  }
}

index.js

import jiti from 'jiti'

;(async () => {
  const filePath = import.meta.url
  const fn = await jiti(filePath, { esmResolve: true, debug: true })
  // Relative file path. './config.js'
  console.log(fn('./config.js').default)
})()

// or

;(async () => {
  const filePath = import.meta.url
  const fn = await jiti(filePath, { esmResolve: true, debug: true, interopDefault: true })
  // Relative file path. './config.js'
  console.log(fn('./config.js'))
})()

We can use jiti.js to help us read various file configurations at run time.