Do you want to print a 2D array in JavaScript but don't know where to start? Look no further! Printing a 2D array from an object can be made easy using JSON. Here's a step-by-step guide to help you out.

Step 1: Create a 2D array

First, let's create a sample 2D array in JavaScript. For example:

```

let twoDArray = [

[1, 2, 3],

[4, 5, 6],

[7, 8, 9]

];

```

Step 2: Convert array to JSON

Next, we can convert the 2D array to a JSON string using JSON.stringify() method.

```

let jsonStr = JSON.stringify(twoDArray);

```

Step 3: Print the JSON string

Finally, you can simply print the JSON string to see the 2D array representation.

```

console.log(jsonStr);

```

By following these simple steps, you can now easily print a 2D array from an object using JSON. Give it a try and see the magic happen!