There are two types of API functions in Node.js:
- Asynchronous, Non-blocking functions
- Synchronous, Blocking functions
In Node.js, there are primarily two types of API functions:
- Asynchronous, Non-blocking Functions: These functions do not block the execution of the code. They typically accept a callback function as an argument to be executed once the operation is completed or an event occurs. Examples include functions like
fs.readFile()
,http.get()
, andsetTimeout()
. - Synchronous, Blocking Functions: These functions block the execution of the code until the operation is completed. They return the result directly without using callbacks. Examples include functions like
fs.readFileSync()
andhttp.request()
.
In general, it’s important to favor asynchronous, non-blocking functions in Node.js to ensure scalability and responsiveness in applications.