Why does '.includes' work on an object inside a looped array?

Question

I was hoping someone could help me understand something about the '.includes' method.

My understanding was that this only worked on arrays? for e.g. myarray.includes('something').

But it also seems to work when you loop over the array and use it on an object for e.g:

    var people = [
        {
            name: 'Joe',
            age: 27
        },
        {
            name: 'Rob',
            age: 25
        },
        {
            name: 'Dave',
            age: 22
        }
    ];

    for(i=0; i<people.length; i++) {
        console.log(people[i].name.includes('Joe')) // True
    }

Can someone explain why this is?

Thanks,

Joe

String.prototype.includes — the "name" properties have strings for values. — Pointy
– Pointy, Commented Jul 25, 2019 at 14:01

pascalpuetz · Accepted Answer · 2019-07-25 14:02:15Z

4

Because name is of type string, which also has an includes method. You can read on that here.

answered Jul 25, 2019 at 14:02

pascalpuetz

5,4281 gold badge15 silver badges26 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Why does '.includes' work on an object inside a looped array?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related