javascript create json object and add item

in javascript, json (javascript object notation) is a lightweight data interchange format that is commonly used to store and transmit data between a server and a web application. json objects are similar to javascript objects but follow a specific syntax.

to create a json object in javascript, you can use curly braces `{}` to define an empty object and then add key-value pairs to it. here is a step-by-step tutorial with code examples on how to create a json object and add items to it:

### step 1: creating an empty json object
to create an empty json object, you can simply initialize a variable with curly braces `{}`:

### step 2: adding items to the json object
you can add key-value pairs to the json object by assigning values to specific keys. keys in a json object must be enclosed in double quotes `""`:

### step 3: accessing json object values
you can access the values of the json object using the keys:

### full example:
here is the full example combining all the steps:

by following these steps, you can easily create a json object in javascript and add items to it. json objects are versatile and widely used in web development for data manipulation and communication.

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