There are two types of API functions in Node.js:
<ul>
<li>Asynchronous, non-blocking functions use the callback pattern, in which a callback function is passed as an argument to the function and is executed when the function completes.
</li>
<li>Synchronous, blocking functions have a <code>Sync</code> suffix in their name, such as <code>fs.readFileSync</code>
</li>
</ul>

There are two types of API functions in Node.js:

* **Asynchronous, non-blocking functions** use the callback pattern, in which a callback function is passed as an argument to the function and is executed when the function completes.
    
* **Synchronous, blocking functions** have a `Sync` suffix in their name, such as `fs.readFileSync`

There are two types of API functions in Node.js i.e., Asynchronous, non-blocking functions and Synchronous, blocking functions.

Raja Muhammad Asher

Raja Muhammad Asher

How many types of API functions are there in Node.js?