Q151. What are the differences between WeakMap and Map?
The main difference is that references to key objects in `Map` are strong while references to key objects in `WeakMap` are weak. i.e, A key object in `WeakMap` can be gar...
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Q152. List down the collection of methods available on WeakMap
Below are the list of methods available on `WeakMap`, 1. `set(key, value)`: Sets the value for the key in the `WeakMap` object. Returns the `WeakMap` object. 2. `delete(k...
Q153. Which Package Is The Fastest Form Of Python?
PyPy provides maximum compatibility while utilizing CPython implementation for improving its performance. The tests confirmed that PyPy is nearly five times faster than t...
Q154. What Is GIL In Python Language?
Python supports GIL (the global interpreter lock) which is a mutex used to secure access to Python objects, synchronizing multiple threads from running the Python bytecod...
Q155. Explain concurrent rendering with an example
Concurrent rendering in React 18 lets React prepare UI updates in a non-blocking way. This means React can pause low-priority rendering work, handle urgent updates first ...
Q156. What is the difference between async mode and concurrent mode?
Both refers the same thing. Previously concurrent Mode being referred to as "Async Mode" by React team. The name has been changed to highlight React’s ability to perform ...
Q157. What are React Server components?
React Server Component is a way to write React component that gets rendered in the server-side with the purpose of improving React app performance. These components allow...
Q158. What is the event loop?
The event loop is a process that continuously monitors both the call stack and the event queue and checks whether or not the call stack is empty. If the call stack is emp...
Q159. When to use client and server components?
You can efficiently build nextjs application if you are aware about which part of the application needs to use client components and which other parts needs to use server...
Q160. What is V8 JavaScript engine?
V8 is an open source high-performance JavaScript engine used by the Google Chrome browser, written in C++. It is also being used in the node.js project. It implements ECM...