In React, whenever we tell React to make a change to the UI via setState or some other mechanism, the virtual DOM is updated first, and then the real DOM is updated to match the changes in the virtual DOM. This process is called “reconciliation”. Whe...
As we are now able to send static data to our client with Socket.IO, we have all the tools we need to send dynamic data as well. MongoDB is a NoSQL database that stores data as JSON documents. In this recipe, we will send data from our database to th...
Here are top 40 Javascript questions that are frequently asked in Frontend interviews - 𝗕𝗮𝘀𝗶𝗰𝘀 𝗼𝗳 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁 What is JavaScript? Explain the difference between let, const, and var. A. In JavaScript, let, const, and var are used ...
Coding with Streams Streams are one of the most important components and patterns of Node.js. There is a motto in the community that goes, "stream all the things!", and this alone should be enough to describe the role of streams in Node.js. Dominic T...
In synchronous programming, we conceptualize code as a series of consecutive computing steps that solve a specific problem. Every operation is blocking, which means that only when an operation is completed, it is possible to execute the next one. Thi...
An async function is a function declared with the async keyword, and the await keyword is permitted within it. The async and await keywords enable asynchronous, promise-based behavior to be written in a cleaner style, avoiding the need to explicitly ...
