Скачать или смотреть How to Extend an Array with a Dictionary in Javascript without Logging [Object] to Console

Learn how to extend an array with a dictionary in Javascript and display the desired object values in the console without logging `[Object]`.
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How to Extend an Array with a Dictionary in Javascript without Logging [Object] to Console

When working with JavaScript, you might come across a need to extend an array with a dictionary (or object). A common issue arises when you use methods like push, leading to console output that simply shows [Object]. This can be confusing, as it does not provide the detailed structure of the object you are working with. In this post, we'll delve into how to properly extend an array with a dictionary and ensure that the console displays the full information you need.

The Problem

Imagine you have a dictionary that looks like this:

[[See Video to Reveal this Text or Code Snippet]]

You also have an empty array:

[[See Video to Reveal this Text or Code Snippet]]

When you attempt to extend arr with h using the push method like this:

[[See Video to Reveal this Text or Code Snippet]]

You might run into an issue where the console logs:

[[See Video to Reveal this Text or Code Snippet]]

This output is not helpful as it only shows [Object], masking the details of what's inside your array.

The Desired Result

What you really want to see in your arr is:

[[See Video to Reveal this Text or Code Snippet]]

This displays the full structure of your object, so you can see the names and prices of the toys.

The Solution

The key to solving this problem lies in how you log the data to the console. Instead of using console.log, which may truncate nested objects, you should use console.dir with the { depth: null } option. This allows you to see the entire structure of the object you are working with.

Step-by-Step Solution

Define Your Dictionary:

Start by defining your dictionary, just like you did previously:

[[See Video to Reveal this Text or Code Snippet]]

Initialize Your Array:

Create your empty array:

[[See Video to Reveal this Text or Code Snippet]]

Push the Dictionary to the Array:

Add the dictionary to the array:

[[See Video to Reveal this Text or Code Snippet]]

Use console.dir for Logging:

Instead of logging with console.log, use console.dir with depth:

[[See Video to Reveal this Text or Code Snippet]]

Complete Example

Here’s how your complete code should look:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you can successfully extend an array with a dictionary in JavaScript without losing the visibility of the object structure in the console. This approach will help you avoid confusion when working with nested objects and ensure you have a clear view of the data you’re handling. Happy coding!