Q1101. What are the directive Hook Arguments?
All the hooks have `el`, `binding`, and `vnode` as arguments. Along with that, **update** and **componentUpdated** hooks expose `oldVnode`, to differentiate between the o...
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Q1102. 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...
Q1103. What is the function of "self"?
Self is a variable that represents the instance of the object to itself. In most of the object oriented programming language, this is passed to the methods as a hidden pa...
Q1104. How do you optimize CSS animations for performance?
We can optimize CSS animation for performance by using techniques like reducing the number of elements being animated, minimizing the use of box-shadow and text-shadow, a...
Q1105. What is the difference between null and undefined?
Below are the main differences between null and undefined, | Null | Undefined | | ----------------------------------------------------------------------------------------...
Q1106. 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...
Q1107. What is the purpose of next/dynamic?
For dynamic importing of components with support for SSR. ```jsx import dynamic from "next/dynamic"; // Client-side only component const DynamicComponentWithNoSSR = dynam...
Q1108. How do you pass multiple values to a directive?
A directive can take any valid javascript expression. So if you want to pass multiple values then you can pass in a JavaScript object literal. Let's pass object literal t...
Q1109. DELETE vs TRUNCATE?
See the comparison table above. Key differences: `DELETE` is DML (row-by-row, rollbackable, fires triggers, has WHERE). `TRUNCATE` is DDL (bulk page deallocation, faster,...
Q1110. How is memory managed in Python?
Memory management in Python involves a private heap containing all Python objects and data structures. Interpreter takes care of Python heap and the programmer has no acc...