In this article, we will understand why React uses Virtual DOM for better performance. We will also be comparing virtual dom vs real dom.
DOM stands for “Document Object Model,” which represents your application UI and whenever the changes are made in the application, this DOM gets updated and the user is able to visualize the changes. DOM is an interface that allows scripts to update the content, style, and structure of the document. Virtual DOM is a node tree similar to Real DOM that lists elements, content, and attributes as objects and properties. React render() method creates a node tree from the react components. Then it updates the node tree in response to the mutations in the data model caused by various actions done in the UI.
Let’s take a simple example of an array
let languages = [cpp, java, python]
Now we want to replace python with javascript. For that, we need to create a new array.
let languages = [cpp, java, javascript]Instead of this, we can just traverse to languages[2] and update only the element. Instead of redoing the whole thing, we just changed the element which we needed to update. The same thing is done by Virtual DOM. Instead of updating all the node elements, it just updates the changed elements. Virtual DOM does the same thing. Instead of updating all the node elements, it just updates the changed elements. Virtual DOM does the same thing. Virtual DOM does the same thing. Instead of updating all the node elements, it just updates the changed elements.
ReactDOM.render() will create a Virtual and real DOM tree of the first load. When events like click, keypress, or API response occur, Virtual DOM tree elements are notified for state or prop change; if that state or props are updated, then the node elements are updated. When changes are done in UI, the changes are also done in Virtual DOM. Instead of updating all the nodes, Virtual DOM updates only those components in which changes are made.
Once Virtual DOM contains all the updated changes, it is then compared with the Real DOM and the difference is calculated between them.
Once Virtual DOM contains all the updated changes it is then compared with the Real DOM and the difference is calculated between them.
Once the difference is calculated the real DOM will update only the new components that have actually changed. This is called Reconciliation. Virtual DOM is faster and more effective than Real DOM as it just focuses on the updated components instead of updating the entire DOM.
Virtual DOM plays a major role in boosting the performance of the applications. When the state of a component changes in an application, the Virtual DOM is updated and then compared with its previous state of the component. Only those few objects are changed in the real DOM that was the outcome of the comparison between the previous states and the new states. This feature made things move faster and also reduced cost. We hope you understood the comparison of virtual dom vs real dom and why React uses virtual dom.
Mindbowser and team are professional, talented and very responsive. They got us through a challenging situation with our IOT product successfully. They will be our go to dev team going forward.
Founder, Cascada
Amazing team to work with. Very responsive and very skilled in both front and backend engineering. Looking forward to our next project together.
Co-Founder, Emerge
The team is great to work with. Very professional, on task, and efficient.
Founder, PeriopMD
I can not express enough how pleased we are with the whole team. From the first call and meeting, they took our vision and ran with it. Communication was easy and everyone was flexible to our schedule. I’m excited to...
Founder, Seeke
Mindbowser has truly been foundational in my journey from concept to design and onto that final launch phase.
CEO, KickSnap
We had very close go live timeline and MindBowser team got us live a month before.
CEO, BuyNow WorldWide
If you want a team of great developers, I recommend them for the next project.
Founder, Teach Reach
Mindbowser built both iOS and Android apps for Mindworks, that have stood the test of time. 5 years later they still function quite beautifully. Their team always met their objectives and I'm very happy with the end result. Thank you!
Founder, Mindworks
Our CISO was extremely impressed by Mindbowser’s work. It is pretty rare to see this kind of clean security report so early in the company’s journey. Huge Thank you for the disciplined approach here.
Founder, TrestleIQ
Mindbowser has delivered a much better quality product than our previous tech vendors. Our product is stable and passed Well Architected Framework Review from AWS.
CEO, PurpleAnt
The flexibility and capacity of the Mindbower staff has been impressive.
CEO, ProofPilot
I am happy to share that we got USD 10k in cloud credits courtesy of our friends at Mindbowser. Thank you Pravin and Ayush, this means a lot to us.
CTO, Shortlist
Mindbowser is one of the reasons that our app is successful. These guys have been a great team.
Founder & CEO, MangoMirror
Kudos for all your hard work and diligence on the Telehealth platform project. You made it possible.
CEO, ThriveHealth
Mindbowser helped us build an awesome iOS app to bring balance to people’s lives.
CEO, SMILINGMIND
They were a very responsive team! Extremely easy to communicate and work with!
Founder & CEO, TotTech
We’ve had very little-to-no hiccups at all—it’s been a really pleasurable experience.
Co-Founder, TEAM8s
Mindbowser was very helpful with explaining the development process and started quickly on the project.
Executive Director of Product Development, Innovation Lab
The greatest benefit we got from Mindbowser is the expertise. Their team has developed apps in all different industries with all types of social proofs.
Co-Founder, Vesica
Mindbowser is professional, efficient and thorough.
Consultant, XPRIZE
Very committed, they create beautiful apps and are very benevolent. They have brilliant Ideas.
Founder, S.T.A.R.S of Wellness
MindBowser was great; they listened to us a lot and helped us hone in on the actual idea of the app. They had put together fantastic wireframes for us.
Co-Founder, Flat Earth
Ayush was responsive and paired me with the best team member possible, to complete my complex vision and project. Could not be happier.
Founder, Child Life On Call
As a founder of a budding start-up, it has been a great experience working with Mindbower Inc under Ayush's leadership for our online digital platform design and development activity.
Founder, Courtyardly
The team from Mindbowser stayed on task, asked the right questions, and completed the required tasks in a timely fashion! Strong work team!
CEO, SDOH2Health LLC
Mindbowser was easy to work with and hit the ground running, immediately feeling like part of our team.
CEO, Stealth Startup
Mindbowser was an excellent partner in developing my fitness app. They were patient, attentive, & understood my business needs. The end product exceeded my expectations. Thrilled to share it globally.
Owner, Phalanx
Mindbowser's expertise in tech, process & mobile development made them our choice for our app. The team was dedicated to the process & delivered high-quality features on time. They also gave valuable industry advice. Highly recommend them for app development...
Co-Founder, Fox&Fork
