Now that we have been hearing a lot about ES6, whenever the word ‘Javascript’ pops out, here is what ES6 is - ECMAScript 6 (ES6) is a version of the JavaScript programming language was released in 2015. It introduced a number of new features to the language, including
● Arrow functions: A new syntax for writing functions that is shorter and easier to read.
● Classes: A new syntax for defining object-oriented classes in JavaScript. ● Modules: A new way to organize and reuse code in JavaScript.
● Promises: A way to simplify asynchronous code and handle errors more easily.
● The spread operator: A new operator that allows an iterable (such as an array) to be expanded in places where multiple arguments (for function calls) or multiple elements (for array literals) are expected.
These are just a few of the new features introduced in ES6. There are many others, including new data types (such as symbols), new methods for working with arrays and objects, and new ways to work with strings and numbers.
Overall, ES6 has made JavaScript a more powerful and expressive language, and it has helped to make it easier to write and maintain complex applications.
Now that we know that React JS is a library that is built on top of JS, let us look at a few similarities and differences between them so that any of the beginners getting started with this will have a clear-cut idea.
Differences:
React is a JavaScript library that is used to build user interfaces, while JavaScript is a programming language. Here are some key differences between the two:
● Purpose: React is primarily used for building user interfaces, while JavaScript is a general-purpose programming language that can be used for a wide range of purposes.
● Syntax: React uses a special syntax called JSX, which allows you to write HTML-like code in your JavaScript files. JavaScript, on the other hand, uses standard JavaScript syntax.
● Reusability: React is designed to be used with reusable components, which can make it easier to build and maintain a user interface. JavaScript does not have this built-in feature, but you can use functions and objects to create reusable code.
● Virtual DOM: React uses a virtual DOM (a lightweight in-memory representation of the actual DOM) to optimize updates to the actual DOM, which can improve the performance of applications that rely on frequent updates. JavaScript does not have a virtual DOM.
Overall, React, and JavaScript are related, but they serve different purposes. React is focused on building user interfaces, while JavaScript is a general-purpose programming language that can be used for a wide range of purposes.
Similarities:
React is a JavaScript library, so it shares many similarities with the JavaScript programming language. Some of the commonalities between React and JavaScript include
● Syntax: Both React, and JavaScript use the same basic syntax, including concepts such as variables, loops, and functions.
● Objects: React, and JavaScript use objects to store and manipulate data. In React, you can use objects to store and manipulate the state of a component, while in JavaScript, you can use objects to store and manipulate data in various contexts.
● Arrays: Both React and JavaScript support arrays, which are ordered lists of items that can be of any data type. In React, you can use arrays to store and manipulate lists of data, such as a list of users or a list of tasks.
● Functions: React and JavaScript use functions to define blocks of code that can be executed when called. In React, you can use functions to define event handlers and other logic for your components.
● Classes: React, and JavaScript support the concept of classes, which are templates for creating objects. In React, you can use classes to define components, which are reusable pieces of code that represent a part of the user interface.
Overall, React, and JavaScript has many similarities, as React is built on top of the JavaScript language and uses many of the same concepts and features.
