{
const output = document.getElementById('version_output')! as HTMLPreElement;
output.innerHTML = `
ts.version: ${ts.version}
`
}
let num: number = 123;
{
const output = document.getElementById('number_output')! as HTMLPreElement;
output.innerHTML += JSON.stringify({num});
}
interface Person {
firstName: string;
lastName: string;
}
function greeter(person: Person) {
return "Hello, " + person.firstName + " " + person.lastName;
}
let user = { firstName: "Jane", lastName: "User" };
{
const output = document.getElementById('greeter_output')! as HTMLPreElement;
output.textContent += greeter(user);
}