How to add elements to a JSON object using JavaScript?

In this article, you will learn how to add elements to a JSON object using JavaScript.

JSON object literals are keys and values ​​separated by colons surrounded by braces {}.

Example 1

In this example, we use bracket notation to add elements to the json object,

var jsonObject = {
   members: 
   {
      host: "hostName",
      viewers: 
      {
         userName1: "userData1",
         userName2: "userData2"
      }
   }
}
console.log("A json object is defined as: ")
console.log(jsonObject);

console.log("Adding an element using the bracket notation")
jsonObject.members.viewers['userName3'] = 'userData3';

console.log("A json object after adding a property is: ")
console.log(jsonObject);

• Step 1 - Define a json object, that is, "jsonObject"

• Step 2 - Define the path to which the new element must be added.

• Step 3 - Use bracket notation to add new elements to the defined path.

• Step 4 - Display the results.

Example 2

In this example, push an array of elements

var jsonObject = {
   members: 
   {
      host: "hostName",
      viewers: 
      {
         userName1: "userData1",
         userName2: "userData2"
      }
   }
}
console.log("A json object is defined as: ")
console.log(jsonObject);

console.log("Adding an element using the dot notation")
jsonObject.members.viewers.userName3 = 'userData3';

console.log("A json object after adding a property is: ")
console.log(jsonObject);

illustrate

• Step 1 - Define a json object, that is, "jsonObject"

• Step 2 - Define the path to which the new element must be added.

• Step 3 - Add new elements to the defined path using dot notation.

• Step 4 - Display the results.

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