Python is became one of the most used programming language today. It is being heavily used in Machine Learning. Here is the complete list of Python Interview Questions and Answers if you are looking to start or switch career in Python. We know, an interviewer may ask you variety of different questions. We will keep […]
Blog
Complete: React.js Interview Questions and Answers 2020
React.js is the top Javascript library today. Here is the complete list of React.js Interview Questions and Answers if you are looking to start or switch career in React. We know, an interviewer may ask you variety of different questions. We will keep this updated by adding more questions and answers, so you don’t have […]
How to Render and Update React Elements
In React app, elements are the smallest building blocks. Components are made up of React elements. These elements are plain objects and very cheap to create. React DOM takes care of updating DOM by using these React elements. Rendering React Element Into DOM Let’s say you have normal HTML div and you want to render […]
Introduction to JSX In React.Js
JSX is basically syntax extension to JavaScript. We use it with React.js to describe what UI should look like. It looks like HTML but actually, it is not. It comes with the full power of JavaScript.
1 2 3 | const element = <h2>Tutorial Funda</h2>; |
Look at the above code syntax. It’s not the HTML it’s a JSX. JSX produces React elements. Babel […]
Understanding Code Errors in JavaScript
It’s very easy to make a mistake while coding. All you have to do is type one character wrong in a variable name and things won’t work. So let’s take a look at some of the common errors that you’ll run into, and it doesn’t matter if you’re a new programmer or you’ve been doing […]
Modern JavaScript for React: Promises and Async/Await – Part 7
When you need to work with asynchronous operations, you usually have to deal with promise objects. A promise is an object that might deliver data at a later point in the program. Below is an example of an async function that returns a promise. The web fetch API, that’s natively available in some browsers.
1 2 3 4 5 6 7 8 9 10 11 | const fetchdata = () => { fetch('https://api.github.com/').then(resp => { resp.json().then(data => { console.log(data); }); }); }; fetchdata(); |
[…]
Modern JavaScript for React: Classes – Part 6
Javascript offers many programming paradigms, and object-oriented programming is one of them. Everything in Javascript is an object including functions. Modern Javascript also added support for Classes. In the last article, we have learned about template strings. Let’s see the class now. Class is a template or a blueprint, for you to define shared structure […]
Modern JavaScript for React: Template Strings – Part 5
Template Strings is one of the most useful features introduced in modern Javascript. We have learned Destructuring Object and Arrays in previous posts. Now, let’s go through this. You can define strings in javascript using single quotes (‘ ‘) or double-quotes (” “). These two ways to define strings in Javascript are equivalent. Modern ways to […]
Storing Information in Variables – JavaScript Basics
Every application needs to be store information and the way we do that in JavaScript or in most programming languages is with variables. We have started with uses of Javascript. Now, we will explore more into javascript features. We are starting this tutorial with Variables. Let’s take an example of Student Management Software. What kind […]
Modern JavaScript for React: Destructuring Objects and Arrays – Part 4
In modern Javascript, destructuring is a process of taking only part of data from given Objects and Arrays. Destructuring is heavily used in the ReactJs. In this article, we will see how to use destructuring with real objects and arrays. Let’s start, Here is what you do when you want to store data from an […]