Fix object.forEach is not a function error in JavaScript

In this tutorial, we are going to learn about how to Fix the object.forEach is not a function error in JavaScript

When we use a forEach() method on a value which is not an type array we will get the following error in our console.

Here is an example of using forEach on a object:

const  user = {
   name: "john",
   place: "italy"
};


user.forEach(el=> console.log(el));
// Uncaught user.forEach is not a function

To fix the error, use the Object.keys() method to get the object keys in a array format and loop through it using forEach method.

Here is an example:

const  user = {
   name: "john",
   place: "italy"
};

const keys = Object.keys(user);

keys.forEach(key=> {
    console.log(user[key]);
  }
);

or we can use the Object.values() method which is similar to Object.keys() but it returns the values in array format.

const  user = {
   name: "john",
   place: "italy"
};

const values = Object.values(user);

values.forEach(value=> {
    console.log(value);
  }
);

We can also iterate through an object by using for..in loop.

const  user = {
   name: "john",
   place: "italy"
};

for (let key in user){
   console.log(user[key])
}

Output:

"john"
"italy"