Q691. What is dynamic import?
You can achieve code-splitting in your app using dynamic import. Let's take an example of addition, 1. **Normal Import** ```javascript import { add } from "./math"; conso...
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Q692. What is a proxy object?
The Proxy object is used to define custom behavior for fundamental operations such as property lookup, assignment, enumeration, function invocation, etc. A proxy is creat...
Q693. What are loadable components?
With the release of React 18, React.lazy and Suspense are now available for server-side rendering. However, prior to React 18, it was recommended to use Loadable Componen...
Q694. What is the purpose of the seal method?
The `Object.seal()` method is used to seal an object, by preventing new properties from being added to it and marking all existing properties as non-configurable. But **v...
Q695. What is suspense component?
React Suspense is a built-in feature that lets you delay rendering part of the UI until asynchronous work (such as loading a component or fetching data) is ready. While w...
Q696. What are the applications of the seal method?
Below are the main applications of `Object.seal()` method, 1. It is used for sealing objects and arrays. 2. It is used to make properties of an object non-configurable.
Q697. What is route based code splitting?
One of the best place to do code splitting is with routes. The entire page is going to re-render at once so users are unlikely to interact with other elements in the page...
Q698. What are the differences between the freeze and seal methods?
If an object is frozen using the `Object.freeze()` method then its properties become immutable and no changes can be made in them whereas if an object is sealed using the...
Q699. How do you determine if an object is sealed or not?
The `Object.isSealed()` method is used to determine if an object is sealed or not. An object is sealed if all of the below conditions hold true 1. If it is not extensible...
Q700. What is diffing algorithm?
React needs to use algorithms to find out how to efficiently update the UI to match the most recent tree. The diffing algorithms is generating the minimum number of opera...