What is the difference between {} and Object?

Question

Recently, I'm confused about the difference between {} and Object. Sometimes, {} will solve my problem, sometimes, it can't and I switched with Object. I really don't know why.

I did some tests, hopefully, it can give you some hint.

const t: Array<{label: string}> = [{label:'1'}];
const arr: Array<{}> = t; //error
const arr2: Array<Object> = t; //pass

Answer 1

{} is an alias for new Object().

So you can say Object is a class and {} is an instance of that class.

You can see here:

console.log(JSON.stringify(new Object()) == JSON.stringify({}))

console.log({} instanceof Object)