Writing a callback function in Chrome's web developer tools section

[moniya12]

In the "Callback functions" block we mentioned an error called Pyramid Of Doom. So before you start writing a callback function, let's see how to avoid errors with such a loud name.

Here are some tips:

use protective operators (Guard Clauses or Early Returns)

compare options with exact values

extract variable checks with context name

Format and organize your code

Using this knowledge, you can write a callback function in the crypto email database list Chrome browser console. You can use the Chrome Canary DevTools to track the call stack of asynchronous JS functions.

To run this code in the Chrome console, follow these steps:

Go to the web page where you want to run this code. In our case, it will be "News" from VK.

Open the developer tools by pressing F12 or right-clicking on the page. From the drop-down list, select "Inspect".

Go to the Console tab in Developer Tools.

Enter the code with the inverse function into the console and press Enter.

Here is an example of executing a callback function in JS: