Strange behavior when converting typescript to java script

I am trying to move my NodeJs app from Java Script to TypeScript to take advantage of some of the avail benefits. But while doing so i fail at the most simple taks..

I have this simple code below in my index.ts file. I want to import express and then start a basic listener on the port from the config file.

import {express} from 'express';  import {config} from './config/config';        const app = express();  const http = require('http');    const secure = http.createServer(app).listen(config.port ,()=>{      console.log(`listening on Port ${config.port}`)  })  

when i run "npm run-script build" i get the below output

"use strict";  Object.defineProperty(exports, "__esModule", { value: true });  const express_1 = require("express");  const config_1 = require("./config/config");  const app = express_1.express();  const http = require('http');  var secure = http.createServer(app).listen(config_1.config.port, () => {      console.log(`listening on Port ${config_1.config.port}`);  });  

why does it prefix express and config with _1 ? The express_1.express seems to brake it. Hope someone can tell my why and how to avoid in future.

https://stackoverflow.com/questions/66978062/strange-behavior-when-converting-typescript-to-java-script April 07, 2021 at 08:17AM