Q1621. What is the reason not to update the state directly?
We want to explicitly track application state in order to implement tools that can log every mutation, take state snapshots, or even perform time travel debugging. So we ...
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Q1622. Does Python have OOP concepts?
Python is an object-oriented programming language. This means that any program can be solved in python by creating an object model. However, Python can be treated as proc...
Q1623. How do you use CSS variables to create more flexible and dynamic designs, and what are some use cases where variables are particularly useful?
CSS variables can improve maintainability and reduce repetition. Variables are particularly useful for theming, creating responsive designs, and making changes to global ...
Q1624. What is a Regular Expression?
A regular expression is a sequence of characters that forms a search pattern. You can use this search pattern for searching data in a text. These can be used to perform a...
Q1625. How React PropTypes allow different types for one prop?
You can use `oneOfType()` method of `PropTypes`. For example, the height property can be defined with either `string` or `number` type as below: ```javascript Component.p...
Q1626. JWT Token in Next.js App Router?
JSON Web Tokens (JWT) can be used in the Next.js App Router for authentication and authorization. You can create a JWT token upon user login and store it in a cookie or l...
Q1627. What is Single state tree?
Vuex's single state tree is single object contains all your application level state and serves as the "single source of truth". It does not conflict with modularity when ...
Q1628. What is the difference between deep and shallow copy?
Shallow copy is used when a new instance type gets created and it keeps the values that are copied in the new instance. Shallow copy is used to copy the reference pointer...
Q1629. What are the string methods that accept Regular expression?
There are six string methods: `search()`, `replace()`, `replaceAll()`, `match()`, `matchAll()`, and `split()`. The `search()` method uses an expression to search for a ma...
Q1630. Can I import an SVG file as react component?
You can import SVG directly as component instead of loading it as a file. This feature is available with `react-scripts@2.0.0` and higher. ```jsx harmony import { ReactCo...