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React js vs javascript

What is JavaScript ?

JavaScript is a scripting or programming language that allows you to implement complex features on web pages — every time a web page does more than just sit there and display static information for you to look at — displaying timely content updates, interactive maps, animated 2D/3D graphics, scrolling video jukeboxes, etc. — you can bet that JavaScript is probably involved. It is the third layer of the layer cake of standard web technologies, two of which (HTML and CSS) we have covered in much more detail in other parts of the Learning Area.

What is React js ?

The React.js framework is an open-source JavaScript framework and library developed by Facebook. Its used for building interactive user interfaces and web applications quickly and efficiently with significantly less code than you would with vanilla JavaScript. In React, you develop your applications by creating reusable components that you can think of as independent Lego blocks. These components are individual pieces of a final interface, which, when assembled, form the applications entire user interface.

javascript ES6 vs ES7

What is difference between JavaScript and ES6?

ES6 is the standard governing JavaScript where as JavaScript is the programming language. ES6 is next gen JavaScript syntax and nothing else. There are also some added features in the ES6 version of JavaScript such as arrow functions , rest and spread operator, destructuring , promises etc.

What is difference between JavaScript and ES7?

ECMAScript 7, also known as ES7 or ECMAScript 2016, is a version of ECMAScript, a scripting-language specification standardized by Ecma International. This version brought along some notable new features to JavaScript, aiding developers to craft more effective and efficient code.

What is Node js ?

Node.js is an open source server environment Node.js is free Node.js runs on various platforms (Windows, Linux, Unix, Mac OS X, etc.) Node.js uses JavaScript on the server

Why Node.js?

A common task for a web server can be to open a file on the server and return the content to the client. Here is how PHP or ASP handles a file request: Sends the task to the computers file system. Waits while the file system opens and reads the file. Returns the content to the client. Ready to handle the next request. Here is how Node.js handles a file request: Sends the task to the computers file system. Ready to handle the next request. When the file system has opened and read the file, the server returns the content to the client. Node.js eliminates the waiting, and simply continues with the next request. Node.js runs single-threaded, non-blocking, asynchronous programming, which is very memory efficient.

Express js vs Node js

Express.js and Node.js, two leading backend technologies, have been contrasted in this article. Express is built on top of Node, so yes, Express adds more features while building apps. Node is just a Javascript environment with libraries to make it easy to write software, whereas Express extends Node specifically to add middleware, routing, and much more. In this article, we will talk about express js vs node js in detail.

What is ExpressJS?

ExpressJS is a web framework built on top of Node.js that enables you to design a web application to handle a variety of different HTTP requests. ExpressJS is a NodeJS-based javascript framework. Web application creation is quick and simple with the help of the former (ExpressJS), as opposed to being more time-consuming with NodeJS. A wide range of features is offered for both web and mobile apps. It is a piece of the MERN, MEAN, and MEVN frameworks and was written in Javascript. For streamlined web creation, Express offers plugins, template code, middleware tools, and routing capabilities. To facilitate customization, the framework also permits the integration of tools and features from third parties, and hence it has composability.

What is MongoDB?

What is MongoDB ?

MongoDB is an open source NoSQL database management program. NoSQL (Not only SQL) is used as an alternative to traditional relational databases. NoSQL databases are quite useful for working with large sets of distributed data. MongoDB is a tool that can manage document-oriented information, store or retrieve information. MongoDB is used for high-volume data storage, helping organizations store large amounts of data while still performing rapidly. Organizations also use MongoDB for its ad-hoc queries, indexing, load balancing, aggregation, server-side JavaScript execution and other features. Structured Query Language SQL is a standardized programming language that is used to manage relational databases. SQL normalizes data as schemas and tables, and every table has a fixed structure. Instead of using tables and rows as in relational databases, as a NoSQL database, the MongoDB architecture is made up of collections and documents. Documents are made up of key-value pairs -- MongoDBs basic unit of data. Collections, the equivalent of SQL tables, contain document sets. MongoDB offers support for many programming languages, such as C, C++, C#, Go, Java, Python, Ruby and Swift

SQL vs NoSQL Database

What is a SQL database?

SQL which stands for Structured Query Language is the programming language thats been widely used in managing data in relational database management systems since the 1970s. In the early years, when storage was expensive SQL databases focused on reducing data duplication. Fast-forward to today, and SQL is still widely used for querying relational databases, where data is stored in rows and tables that are linked in various ways. One table record may link to one other or to many others, or many table records may be related to many records in another table. These relational databases which offer fast data storage and recovery, can handle great amounts of data and complex SQL queries.

What is a NoSQL database?

NoSQL is a non-relational database, meaning it allows different structures than a SQL database not rows and columns and more flexibility to use a format that best fits the data. The term NoSQL was not coined until the early 2000s. It doesn't mean the systems don't use SQL, as NoSQL databases do sometimes support some SQL commands. More accurately NoSQL is sometimes defined as “not only SQL

Html5 vs Css3

What is HTML?

HTML stands for Hyper Text Markup Language HTML is the standard markup language for creating Web pages HTML describes the structure of a Web page HTML consists of a series of elements HTML elements tell the browser how to display the content HTML elements label pieces of content such as this is a heading this is a paragraph this is a link etc.

What is CSS?

CSS stands for Cascading Style Sheets CSS describes how HTML elements are to be displayed on screen paper or in other media CSS saves a lot of work. It can control the layout of multiple web pages all at once External stylesheets are stored in CSS files