Know About Javascript Features Both General And Modern

When it comes to web development, JavaScript is one of the most popular languages with multiple capabilities. According to Github, it is one of the top programming languages, and we must comprehend the aspects of JavaScript in order to fully appreciate its capabilities.

Lightweight, dynamic, functional, and interpreted are some of the features. Now we'll go through some of JavaScript's features.


  • LightWeight Scripting language

  • Dynamic Typing

  • Object-oriented programming support

  • Functional Style

  • Platform Independent

  • Prototype-based

  • Interpreted Language

  • Async Processing

  •  Client-Side Validation

  • More control in the browser

Let's take a closer look at each of these aspects so you can grasp them. Some of the features listed above are old JavaScript features, while others are brand new.

1. LightWeight Scripting Language

Because it is designed solely for data handling in the browser, JavaScript is a lightweight scripting language. It has a limited number of libraries because it is not a general-purpose language. The lightweight nature of JavaScript is also a fantastic attribute because it is exclusively meant for client-side execution and that too for web apps.

2. Dynamic Typing

JavaScript allows for dynamic typing, which means that the type of a variable is determined by the stored value. If you declare a variable x, for example, you can store a string, a Number type value, an array, or an object. Dynamic typing is the term for this.


To grasp this, in languages such as Java, we explicitly state that a variable will store a specific type of data, however with JavaScript, we do not need to specify the data type when declaring a variable. To declare a variable in JavaScript, we simply use the var or let keyword before the variable name without caring about its type.


3. Object-Oriented Programming Support

The concept of class and OOPs has been refined starting with ES6. Object Creation Patterns (Encapsulation) and Code Reuse Patterns are also key aspects with OOP in JavaScript (Inheritance). Although JavaScript developers rarely use this capability, it is available to all users.

3. Functional Style

This means that JavaScript takes a functional approach to programming; even objects are built using function Object() { [native code] } functions, and each function Object() { [native code] } function represents a different object type. In JavaScript, functions can also be utilised as objects and given to other functions.

4. Platform Independent

This means that JavaScript is platform-agnostic or portable, which basically means that you can write the script once and run it everywhere and at any time. In principle, JavaScript programmes can be written and run on any platform or browser without changing the script's output.

5. Prototype-based Language

JavaScript is a scripting language that is based on prototypes. This means that prototypes are used instead of classes or inheritance in javascript. We build a class in a language like Java, and then we construct objects for those classes. However, in JavaScript, we specify an object prototype, which can subsequently be used to generate more objects.


7. Interpreted Language

JavaScript is an interpreted language, which means that the script written within it is executed line by line. A JavaScript interpreter, which is a built-in component of the Web browser, interprets these Scripts. However, many JavaScript engines in browsers now use just-in-time compilation for JavaScript code, such as the V8 engine in Chrome.

8. Async Processing

JavaScript has Promise, which allows for asynchronous requests in which a request is made and JavaScript does not have to wait for the response, which might sometimes cause the request to be blocked. Async functions are also allowed in JavaScript starting with ES8. These functions do not execute one by one, but rather in parallel, which has a good effect on processing time, decreasing it significantly.

9. Client-side Validations

This is a feature that has been present in JavaScript for a long time and is still frequently used because every website includes a form where users enter values, and in order to ensure that users submit the correct value, we must implement suitable validations on both the client and server sides. Client-side validations are implemented using JavaScript.



In this blog, we have discussed some main Javascript Features. And, for the students to understand them is very helpful. We hope that you understand it clearly. But if in any case, you need assistance regarding JavaScript Assignment Help then feel free to contact us. We are always available to help you.