I'm trying to get all data from json variable using javascript and node.js

Question

So i'm trying to get all data from JSON variable and console.log them So basically what i have tried:

var users = {
"kyle": {
  age: 16
}
}

users.forEach(user => {
            console.log(user);
});

And it throw an error:

users.forEach is not a function

So any ideas?

Guess users isn't an array (nor is it something else with a forEach property) — CertainPerformance
– CertainPerformance, Commented Sep 15, 2018 at 5:47
If it's in JSON format, then it's a string. Parse it into an object first with JSON.parse. — CertainPerformance
– CertainPerformance, Commented Sep 15, 2018 at 5:49
Try JSON.parse(users).forEach(user => { console.log(user); }); — Ankit Agarwal
– Ankit Agarwal, Commented Sep 15, 2018 at 5:50

Mark · Accepted Answer · 2018-09-15 06:05:36Z

1

users is not an array, it's an object. So you can't use forEach because that's an array method. You can use something like Object.keys(), Object.entires, or for...in to loop through an object. Here's an example of the later:

var users = {
  "kyle": {
    age: 16
  }
}

// using for...in
for (user in users){
  console.log("key:",user);
  console.log("value:", users[user])
            
};

// using Object.entries
Object.entries(users).forEach(([key, value])=>{
  console.log(key,":", value)
})

edited Sep 15, 2018 at 6:05

answered Sep 15, 2018 at 6:00

Mark

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