Type Script
https://www.typescriptlang.org/play/
Book:
https://github.com/basarat/typescript-book
Source code for exersices
https://github.com/basarat/typescript-book/tree/master/code
<![CDATA[
This type script (.ts) will generate the JS
class Greeter {
greeting: string;
constructor(message: string) {
this.greeting = message;
}
greet() {
return "Hello, " + this.greeting;
}
}
let greeter = new Greeter("world");
let button = document.createElement('button');
button.textContent = "Say Hello";
button.onclick = function () {
alert(greeter.greet());
}
document.body.appendChild(button);
]]>
var Greeter = (function () {
function Greeter(message) {
this.greeting = message;
}
Greeter.prototype.greet = function () {
return "Hello, " + this.greeting;
};
return Greeter;
}());
var greeter = new Greeter("world");
var button = document.createElement('button');
button.textContent = "Say Hello";
button.onclick = function () {
alert(greeter.greet());
};
document.body.appendChild(button);