Q391. What is the benefit of styles modules?
It is recommended to avoid hard coding style values in components. Any values that are likely to be used across different UI components should be extracted into their own...
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Q392. What is FROM used for?
The **`FROM`** clause defines the source table(s), views, joined datasets, or subqueries from which rows are read: ```sql SELECT u.username, p.title FROM users u INNER JO...
Q393. What is the difference between null and undefined?
Below are the main differences between null and undefined, | Null | Undefined | | ----------------------------------------------------------------------------------------...
Q394. What are the popular React-specific linters?
ESLint is a popular JavaScript linter. There are plugins available that analyse specific code styles. One of the most common for React is an npm package called `eslint-pl...
Q395. What is eval?
The eval() function evaluates JavaScript code represented as a string. The string can be a JavaScript expression, variable, statement, or sequence of statements. ```javas...
Q396. What is React Router?
React Router is a powerful routing library built on top of React that helps you add new screens and flows to your application incredibly quickly, all while keeping the UR...
Q397. Which statement creates a table?
The **`CREATE TABLE`** statement defines and provisions a new table schema: ```sql CREATE TABLE Customers ( customer_id INT AUTO_INCREMENT PRIMARY KEY, first_name VARCHAR...
Q398. What is transition in CSS?
A transition in CSS is a way to create animation effects when a property of an HTML element changes, allowing developers to smoothly animate changes to an element's style...
Q399. What is the difference between window and document?
Below are the main differences between window and document, | Window | Document | | ----------------------------------------------------------------------------- | ------...
Q400. How React Router is different from history library?
React Router is a wrapper around the `history` library which handles interaction with the browser's `window.history` with its browser and hash histories. It also provides...