I'm a self taught web developer and a learner as well. I am sharing my experiences and knowledge here with a hope to help those who are beginners. As sharing helps to grow together.
MERN stack is a collection of technologies used to develop web applications. The main purpose of using MERN stack is to develop apps using JavaScript only without knowing another language. This is because the four technologies that make up the techno...
Functional components are better than class based components in React in terms of working as well as maintaining. There is also less code that is needed to be written to get same results. The class components have different lifecycle methods that are...
Actions Action is the only way for the interaction between the store and the application. It carries some information from the application to the Redux store. Actions are plain JavaScript objects. It must have a 'type' property that informs about the...
First Principle "The state of your whole application is stored in an object tree within a single store." It means that the state of our application is maintained in a single object which the Redux storage would manage. For example- If we have a state...
JSX stands for JavaScript XML. JSX allows us to write HTML elements in JavaScript and place them in the DOM without any document.getElementById(), createElement() or appendChild() methods. JSX is faster than normal JavaScript language. JSX is used to...
The first thing to get ready to work on React is to install Node.js and VS Code on your computer. Node.js will be used to check the code in the editor without opening the browser. Installation of Node.js Search 'download node js' or open the link `h...
Promise chaining is used for handling more than one asynchronous task one after the other. What is Promise Chaining? We use asynchronous functions which return promises and use resolve values with the help of .then. And that value we further use in a...
We use try and catch for error handling in JavaScript. But there is another keyword that is used with try and catch. The keyword is finally. When we write code using try and catch for handling errors. If the code is errorless, then try block statemen...
When we use multiple nested callback functions a big problem arises which is known as Callback Hell or pyramid of doom. The promise is used to handle multiple asynchronous functions and their errors (if occur). A promise contains two parameters, the ...
