TypeScript

by Jesse Johnson

HTML

<div id="app"></div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
  text-align: center;
}

TypeScript

interface Person {
  firstName: string;
  lastName:  string;
}

function greeter(person: Person) {
  return "Hello, " + person.firstName + " " + person.lastName;
}

async function dramaticWelcome() {
    console.log("Hello");

    for (let i = 0; i < 3; i++) {
        await delay(500);
        document.querySelector("#app").innerHTML = i.toString();
    }

    console.log("World!");
}

dramaticWelcome();

let user = {
	firstName: "Malcolm",
  lastName:  "Reynolds"
};

document.querySelector("#app").innerHTML = greeter(user);