javascript - module exports property by reference -


i have cache class:

class cache {     constructor() {         this._cache = {};     }      refresh(cb) {         enums_db.find({key: {$in: ['country_list', 'supported_countries', 'country_dial']}}).exec((e, docs) => {             _.each(docs, (doc) => {                 switch (doc.key) {                     case 'country_list':                         this._cache.country_list = doc.value;                         break                     case 'supported_countries':                         this._cache.supported_countries = doc.value;                         break;                     case 'country_dial':                         this._cache.country_dial = doc.value;                         break;                 }             })              cb && cb()         })     }      init(cb) {         this.refresh(cb)         setinterval(() => {             this.refresh()         }, 3000)     } } module.exports = new enums()

module.exports = new enums()

also, have enums file:

const cache = require('./utils/cache')  module.exports = {     country_list: cache.cache.country_list,     supported_countries: cache.supported_countries,     country_dial: cache.country_dial,     other_enum: [] }

and print example file:

const {country_list} = require('../enums')  setinterval(function () {     console.log(country_list) }, 3000)

this way same values, if they're refreshed , edited in cahche class. i've seen if export cache, , user print as: cache.country_list work. how can solve it, print print country_list propery enums, , accessed ref cache file?

thanks.


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