Hello, Guys, javascript is really a great and fun to use lightweight client-side technology, it provides great dynamic interactivity when coded with HTML. JavaScript is an open-source and cross-platform language. It is an interpreted programming language with object-oriented capabilities.
JavaScript was invented by Brendan Eich, co-founder of the Mozilla project, the Mozilla Foundation, and the Mozilla Corporation. JavaScript is one of the easiest coding languages and it has many frameworks. It is a compact yet flexible language.
JavaScript is incredibly versatile. You can start small, with carousels, image galleries, fluctuating layouts, and responses to button clicks. With more experience, you’ll be able to create games, animated 2D and 3D graphics, comprehensive database-driven apps, and much more!
It is recommended for web developers to understand this language and get good command over it. For using core JS you don’t need any libraries just put your code inside the script tag. See Example Below
JavaScript is fast cause it does not require much server interaction. For example, you can validate users mail by using a validation function in JS before sending it to the server. The validation function display error quickly after mouseout function on any input field.
Advantages of JavaScript
Less server interaction − You can validate user input before sending the page off to the server. This saves server traffic, which means less load on your server.
Immediate feedback to the visitors − They don’t have to wait for a page reload to see if there is an error in the form input.
Increased interactivity− You can create interfaces that react when the user hovers over them with a mouse or activates them via click event.
Richer interfaces − JS gives a nice interface to users by allowing you to add sliders, drag and drop, tabs, validation etc.
JavaScript Drawbacks
The biggest disadvantages are code is always visible to everyone, anyone can view JavaScript code.
It lacks in multithreading or multiprocessor capabilities
It has security issues
JavaScript single error can stop to render with the entire site. However, browsers are extremely tolerant of JavaScript errors.
Javascript has Frameworks and Libraries
Frameworks describe a given structure of “how” you should present your code. Pretty much like a code-template.
Libraries are like a toolkit that aid you in various tasks
Frameworks and Libraries…
1)Angular Js – AngularJs is a google product and one of the most used javascript based framework. It was released in 2009 and it is open source. AngularJS is a structural framework for dynamic web apps. It lets you use HTML as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. AngularJs helps eliminate much of the code using its data binding and dependency. All the process is done within the browser which makes it faster and works better with server technology.
2)Meteor Js – Meteor Js is open-source Js Framework written in node js, it requires jQuery library or Js UI library to run. Meteor allows for rapid prototyping and produces cross-platform (Android, IOS, Web) code
3)React Js – React is a declarative, efficient, and flexible JavaScript library for building user interfaces. React is front end library developed by Facebook. It’s used for handling view layer for web and mobile apps. ReactJS allows us to create reusable UI components.
4)Backbone Js – BackboneJS is a lightweight JavaScript library that allows to develop and structure the client-side applications that run in a web browser. It offers an MVC framework which abstracts data into models, DOM into views and binds these two using events.
5)Ember Js – Ember.js is an open-source, free JavaScript client-side framework for developing web applications. It allows building client-side JavaScript applications by providing a complete solution which contains data management and application flow.
6)Underscore Js – Underscore.js is a JavaScript library which provides utility functions for common programming tasks.
7)jQuery – It is a library which offers good features which makes java script rich. It makes HTML page richer and user-friendly with event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers.
8)Node Js – It is an open-source cross-platform JavaScript runtime environment in which you can build a diverse application. Node Js is not a JS framework, but most of the modules are written in JavaScript.
9)Grunt Js – It is a JavaScript Taskrunner, which basically does most of your repetitive work like minification, compilation, unit testing, linting, etc automatically. You have to just configure the Grunt file and grunt will take care of most of your mundane work for you. There are various plugins for every task.
10)Ionic Js – Build mobile apps with the web tech you know. It is an open-source, Cross-Platform.
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