A string is traditionally a sequence of characters, either as a literal constant or as some kind of variable. In the programming world, it is a vital factor to work with. JavaScript treated string as a primitive type with a lot of methods.
Computers work by processing and manipulating numbers. Most programming languages make a distinction between whole numbers and decimal numbers. In JavaScript, the number type is a double-precision 64-bit format IEEE 754 value.
Arrays are among the oldest and most important data structures and are used by almost every program. In the JavaScript world, it’s more likely an object. Which is also known as non-primitive or reference data-type. The Array object lets us store multiple values in a single variable.
In the programming world, a function is a block of organized, reusable code that is used to perform a single, related action. We can simply think of it as a machine where we give some input and it gives us some output, that’s it.
React JS is an open-source, front end, efficient, and flexible JavaScript library for building user interfaces. It is used to build single-page applications. It allows us to create reusable UI components. There have two buzzwords — Library & FrameWork.
List in Python is more likely an array in other programming languages. It is used to store multiple items in a single variable. So we can say that a list in python is a data structure that is an ordered sequence of elements and each element inside of a list is called an Item. Python list is mutable which means it’s changeable.
Node JS is an open-source, cross-platform JavaScript runtime powered by a Chrome V8 engine that executes JavaScript code outside a web browser. What is the runtime environment really??? Well, before node we use JavaScript only to build applications that run inside the browser. Every browser has a JavaScript engine that takes our JavaScript code and converts it to code that a computer can understand. The browser provides a runtime environment for JavaScript code.
POST, GET, PUT, PATCH, and DELETE are the most-commonly-used HTTP verbs. These correspond to the CRUD (create, read, update, and delete) operations respectively. There are a number of other verbs too, but these are utilized less frequently.
The basic objective of the webserver is to store, process, and deliver web pages to the users. The term web server can refer to hardware or software, or both of them working together. On the hardware side, a web server is a computer that stores web server software and web pages, and their supporting files (HTML documents, images, style sheets, tests, etc) are available on that computer.
Here the idea of event loop comes from. JavaScript is a single-threaded, non-blocking, asynchronous, concurrent language. Thread is like an event in other words it’s simply a sequence of code execution that can be executed independently of one another. JavaScript is a single-threaded programming language which means it has a single call stack and a single memory heap & it can do one thing at a time.
