Skip to main content

Migrating from ES5 to TS gradually

I am running on a huge project with thousands of .js files that are written in es5, and for many reasons and benefits of TS, we've decided to start migrating to TS, after a couple of days and many pieces of research, I am going to elaborate a couple of points:

To start migrating from es5 to ts we can start either by two ways:

First way:

1- Installing ts, creating tsconfig with allowJS set to true then start changing the extension of files to .ts and everything will work by default

2- As we want to migrate gradually we don't want at once to replace the global scripts to native modules, in other words, we don't want immediately to type import and export, but instead we want to keep the old way global scripts and use /// <reference path=""> to load dependencies

3- after previous step we can gradually start turning the files into native modules esm

Second way:

1- As I've read about UMD it will work on both borwser(client) and server, which means support all type of modules AMD, CommonJS, SystemJS and Native ES modules

2- after re-writing the scripts in UMD fashion, we can gradually start moving our scripts to ESM

last but not least, and regarding the intelligence we'll start writing .d.ts files accordingly or we can rely on ts-loader to generate the files

lastly, we either go with ts-loader or babel but we are not sure if there are couple of limitations for each of which

Any idea is really appreciated on what is the best way to start migrating

Via Active questions tagged javascript - Stack Overflow https://ift.tt/xie2KyR
Labels:

Comments

Post a Comment

Popular posts from this blog

Where and how is this Laravel kernel constructor called? [closed]

Where and how is this Laravel kernel constructor called? public fucntion __construct(Application $app, $Router $roouter) { } I have read the documentation and some online tutorial but I can find any clear explanation. I am learning Laravel and I am wondering where does this kernel constructor receives its arguments from. "POSTMOTERM" CLARIFICATION: Here is more clarity.I have checked the boostrap/app.php and it is only used for boostrapping the interfaces into the container class. What is not clear to me is where and how the Kernel class is instatiated and the arguments passed to the object calling the constructor.Something similar to; obj = new kernel(arg1,arg2) or, is the framework using some magic functions somewhere? Special gratitude to those who burn their eyeballs and brain cells on this trivia before it goes into a full blown menopause alias "MARKED AS DUPLICATE". To some of the itchy-finger keyboard warriors, a.k.a The mods,because I believe in th...
Post a Comment
Read more

Why is my reports service not connecting?

I am trying to pull some data from a Postgres database using Node.js and node-postures but I can't figure out why my service isn't connecting. my routes/index.js file: const express = require('express'); const router = express.Router(); const ordersCountController = require('../controllers/ordersCountController'); const ordersController = require('../controllers/ordersController'); const weeklyReportsController = require('../controllers/weeklyReportsController'); router.get('/orders_count', ordersCountController); router.get('/orders', ordersController); router.get('/weekly_reports', weeklyReportsController); module.exports = router; My controllers/weeklyReportsController.js file: const weeklyReportsService = require('../services/weeklyReportsService'); const weeklyReportsController = async (req, res) => { try { const data = await weeklyReportsService; res.json({data}) console...
Post a Comment
Read more

How to show number of registered users in Laravel based on usertype?

i'm trying to display data from the database in the admin dashboard i used this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count(); echo $users; ?> and i have successfully get the correct data from the database but what if i want to display a specific data for example in this user table there is "usertype" that specify if the user is normal user or admin i want to user the same code above but to display a specific usertype i tried this: <?php use Illuminate\Support\Facades\DB; $users = DB::table('users')->count()->WHERE usertype =admin; echo $users; ?> but it didn't work, what am i doing wrong? source https://stackoverflow.com/questions/68199726/how-to-show-number-of-registered-users-in-laravel-based-on-usertype
Post a Comment
Read more