javascript modules export updated variable

Question

I'm new to js modules and I don't fully understand how they works, my problem is;

I have this fixed var that I need in more modules so at the moment my code is:

let fixed

const getFixed = () => {
  return $.getJSON('data/fixed.json')
    .done((data) => {
      fixed = data.settings[0]
    })
    .fail((jqxhr, textStatus, error) => {
      const err = `${textStatus} , ${error}`
      alert(`fixed.json for getSettings Request Failed: ${err}`)
    })
}

const init = () => {
  return getFixed()
}

const getFixedSettings = () => {
  return fixed
}

export default {
  init,
  getFixedSettings
}

and in my app, it's another module, I do:

import functions from './functions'

const initialize = () => {
  // update the settings
  functions.init()
// initialize the map
.then(() => mapInit(functions.getFixedSettings()))
}

but when I ask for functions.getFixedSettings() in another module I need to call again functions.init() before to have the updated var

What is the correct way to export that updated fixed var and be accessible to all my modules?

Answer 1

如果您希望fixed对所有模块都可访问，则可以只输出fixed ： export let fixed 。