TYPESCRIPT

typescript

is a javascript in beter

typescript

npx tsc

typescript

<script src="https://cdnjs.cloudflare.com/ajax/libs/typescript/4.8.3/typescript.min.js" integrity="sha512-ipipS8Je0Nf76mSbTGMnLwgpI023wQDvAoZQ90fEJ/5eqrVs0YpfTqjsa+EX44iT5IHThlAqsgq3L1l7lwZcpQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>

typescript

it's just js with types okay just switch it's not that hard

typescript

interface LabelledValue {
  label: string;
}

function printLabel(labelledObj: LabelledValue) {
  console.log(labelledObj.label);
}

let myObj = {size: 10, label: "Size 10 Object"};
printLabel(myObj);

typescript

Great compiler for Javascript

typescript

const user = {
  firstName: "Angela",
  lastName: "Davis",
  role: "Professor"
}

console.log(user.firstName)
Property 'name' does not exist on type '{ firstName: string; lastName: string; role: string; }'.2339Property 'name' does not exist on type '{ firstName: string; lastName: string; role: string; }'.Try

typescript

const user = {
  firstName: "Angela",
  lastName: "Davis",
  role: "Professor",
}
 
console.log(user.name)
Property 'name' does not exist on type '{ firstName: string; lastName: string; role: string; }'.
Property 'name' does not exist on type '{ firstName: string; lastName: string; role: string; }'.

typescript !

let a = document.getElementById('hello');

if (a) {
    a.style.width = '100px';
}

! is used when you know that element cannot be null
const a = document.getElementById('hello');

a!.style.width = '100px';

TypeScript

//// content.js ////

{ // Block used to avoid setting global variables
  const img = document.createElement('img');
  img.src = chrome.runtime.getURL('logo.png');
  document.body.append(img);
}

typescript

TypeScript is a programming language developed and maintained by Microsoft. 

typescript

npm run build

npm run test

typescript

the pest of javascript