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JavaScript

Posted by Kristian Woods
Kristian Woods
23,414 Points

How do you loop through an array of objects?

I have created an array of objects, and i'm trying to loop through each and store their key/value pairs in new variables. Yet, I'm only getting the last object in the array back when I log it out to the console - "jon"

any help would be great

Thanks

var userList = [
    {
        name: "anka",
        password: "H2X835"
    },
    {
        name: "bob",
        password: "bob"
    },
    {
        name: "jon",
        password: "jon"
    }
];

for (var i = 0; i < userList.length; i++) {
    users = userList[i].name;
    logIn = userList[i].password;
}

1 Answer

Damien Watson
Damien Watson
27,419 Points

Hi,

This is because you are overwriting the variable each time you loop through.

If you 'console.log' the variables inside each loop, you can see that they are being set.

for (var i = 0; i < userList.length; i++) {
    users = userList[i].name;
    logIn = userList[i].password;
    console.log("user : "+users+" | pass : "+logIn);
}

It depends on what you want to do with them. I'm assuming whatever you do it will be within the loop, so you should be good to go.