'The React Virtual DOM Explained' react dom
Let’s first understand what DOM is? DOM stands for Document Object Model. It is a structural representation of a tree with nodes representing different HTML tags as JavaScript objects which makes it easier for the browser to understand.
According to the process, after every state change, the DOM tree has to be re-rendered, and re-rendering a tree with 1000 nodes is not a good way to deal with it as many things can go wrong like losing speed or accuracy and can even cost us as it may take a lot of space while doing so.Virtual DOMVirtual DOM or VDOM is just a virtual representation of the UI which is kept in the memory and synced with Real DOM”.
But the real question is how it is faster when all the properties and even the process of rendering the UI after modification is the same?We all know that in virtual DOM, a virtual object similar to the actual object is created with similar properties and also that after every state change, the DOM will re-render itself, but React has something different in store for us.
Simply said, Real DOM will only be rendered for those parts where changes have taken place, and there will be no re-rendering for the rest of the Tree. This will affect the speed and efficiency of our apps and pages.The following image represents the Tree structure of the DOM with its nodes. The blue circles represent the original state of the DOM while the red ones represent the updated state
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
How The Matrix Resurrections used visual effects to plug in | Digital TrendsThe Matrix Resurrections visual effects supervisor Dan Glass explains how the film used VFX to send audiences back into the franchise's virtual world.
Read more »
How AI Can Effectively Solve Inherent Human Bias | HackerNoonWith the growing complexity of reality, cognitive biases multiply over time. Let’s discover those effectively solved using the state-of-the-art technology
Read more »
CI for APIs with the Kong Insomnia CLI and GitHub Actions | HackerNoonCreate a simple server with Node.js and Express, write API tests using Kong Insomnia, and then run these tests in our CI pipeline with Inso and GitHub Actions.
Read more »
Implementing Dashboards Using Google Charts. | HackerNoon'Implementing Dashboards Using Google Charts.' frontenddevelopment datavisualization
Read more »
The Importance of Email Service Provider in Email Marketing | HackerNoonUsing an Email Service Provider allows tracking open, click and bounce rates which helps you to optimize your email marketing campaign.
Read more »