How to iterate over a Set in TypeScript?

Question

How do you iterate over a set in TypeScript? for..of does not work:

\'Set\' is not an array type or a string type

.for

Answer 1

You can still use .forEach with the correct this by using a regular function instead of an arrow function

mySet.forEach(function(item){
    expect(this).toEqual(item);
});

Compared to

class MyClass{
    ...
    doSomething():{
        mySet.forEach((item) => {
            expect(this instanceof MyClass).toEqual(true);
        });
    }
}

Another way to iterate is to use a for loop over the values

for(item of mySet.values()){
    ...
}

More information on iterating Set with foreach can be found here