Learn TypeScript

Quiz

Quiz

This quiz will test what you have learned about using types.

1.

Is there a Date type in JavaScript?

2.

Is there a Date type in TypeScript?

3.

Is the type annotation necessary to type the amount variable to number in the declaration below?

let amount: number = 1000;
4.

Is the type annotation necessary to type the message parameter to string in the declaration below?

function logMessage(message: string) {
...
}
5.

What is the type of the message parameter in the following function?

function outputMessage(message) {
console.log(message);
}
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