Did you know why JavaScript is Single-Threaded by nature???
JavaScript is indeed primarily single-threaded, meaning it executes one task at a time in a single thread, JavaScript interpreters codes line by line.
Today's topic:
Asynchronous JavaScript.
Asynchronous JavaScript allows for non-blocking execution of code, enabling tasks to run concurrently.
Benefits
-
Non-blocking: Allows other tasks to run while waiting for operations like network requests.
-
Improved responsiveness: Helps in creating more responsive web applications.
-
Handling delays: Useful for operations with uncertain completion times (e.g., API calls).
Common Use Cases
-
API calls: Fetching data from servers often involves async operations.
-
File operations: Reading/writing files can be handled asynchronously.
-
Timers:
setTimeout,setIntervalare async mechanisms.
API, Libraries, and Frameworks Explained
These terms are fundamental in software development, referring to different ways code is structured, reused, and interacted with.
API (Application Programming Interface)
An API is a set of defined rules and protocols for building software and applications, specifying how components interact.
API allows the frontend to interact with the database, this is the breach between front-end and other applications, Enables different systems, applications, or services to communicate.
Backend receives your server logic or applications.
Example: Twitter API allows developers to access Twitter data programmatically.
Libraries:
A collection of pre-written code (functions, classes) for reuse, it provides specific functionalities to simplify development, simply means, other people's code you import to make use of them.
Typically focused on a particular task; developer controls flow.
Frameworks
A structured set of code providing a skeleton for building applications, it contains libraries, structure or format, often dictating application flow and architecture.
In Nigeria Context
Developers in Nigeria leverage global APIs, libraries, and frameworks for building local and international-facing applications, contributing to tech growth.