Q1161. What are the problems with global variables?
The problem with global variables is the conflict of variable names of local and global scope. It is also difficult to debug and test the code that relies on global varia...
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Q1162. How to pass params to `history.push` method in React Router v4?
While navigating you can pass props to the `history` object: ```javascript this.props.history.push({ pathname: "/template", search: "?name=sudheer", state: { detail: resp...
Q1163. How do you handle static files in Next.js?
By placing them in the `public` directory, which is served at the root URL. ``` public/ ├── images/ │ └── logo.png └── favicon.ico ``` You can access these files using `/...
Q1164. What are the similarities between Vue.js and ReactJS?
Even though ReactJS and VueJS are two different frameworks there are few similarities(apart from the common goal of utilized in interface design) between them. 1. Both fr...
Q1165. What is CHECK constraint?
A **`CHECK`** constraint ensures that all values stored in a column satisfy a specific boolean condition: ```sql CREATE TABLE products ( product_id INT PRIMARY KEY, name ...
Q1166. Find all occurrences of a substring in Python?
There is no simple builtin string function that does what you're looking for, but you could use the more powerful regular expressions: >>>[m.start()forminre.finditer('te...
Q1167. What is the `gap` property in Flexbox, and how is it used to add spacing between flex items?
The `gap` property in Flexbox sets the spacing between flex items, both horizontally and vertically. It is a shorthand for `row-gap` and `column-gap`.
Q1168. What is NaN property?
The NaN property is a global property that represents "Not-a-Number" value. i.e, It indicates that a value is not a legal number. It is very rare to use NaN in a program ...
Q1169. How to implement _default_ or _NotFound_ page?
A `` renders the first child `` that matches. A `` with no path always matches. So you just need to simply drop path attribute as below ```jsx harmony ```
Q1170. List some common performance optimization techniques in Next.js.
- Use static generation (SSG) for pages that can be pre-rendered. - Implement incremental static regeneration (ISR) for dynamic content. - Use the next/image component fo...