Q361. How do you create API endpoints in Next.js?
Next.js provides built-in serverless backend capabilities for creating REST or GraphQL endpoints: ### 1. In App Router (Route Handlers - Modern): Create a `route.ts` (or ...
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Q362. Must you specify columns when inserting?
No, if you provide values for ALL columns in the exact table order. But **best practice**: always specify columns. It prevents errors when schema changes and is self-docu...
Q363. What is the difference between absolute and relative positioning in CSS?
Relative positioning moves an element relative to its current position without affecting the position of other elements, while absolute positioning positions an element r...
Q364. How can we find the version of React at runtime in the browser?
You can use `React.version` to get the version. ```jsx harmony const REACT_VERSION = React.version; ReactDOM.render( {`React version: ${REACT_VERSION}`}, document.getElem...
Q365. Insert a new record into Customers?
To insert a new record into the `Customers` table, specify the column names followed by the `VALUES` clause: ```sql INSERT INTO Customers (id, first_name, last_name, emai...
Q366. What is a strict mode in javascript?
JavaScript’s "use strict" directive is used to opt into a stricter parsing and error-handling mode for your scripts or functions. It helps catch common bugs, makes your c...
Q367. How to add Google Analytics for React Router?
Add a listener on the `history` object to record each page view: ```javascript history.listen(function (location) { window.ga("set", "page", location.pathname + location....
Q368. Insert "Hawkins" as LastName in Customers?
To insert a row populating only the `LastName` column: ```sql INSERT INTO Customers (LastName) VALUES ('Hawkins'); ``` *Prerequisite:* This statement succeeds only if all...
Q369. What is the CSS clear property?
The CSS clear property controls whether an element is allowed to float next to another element or not. The possible values include left, right, both, and none. When an el...
Q370. Why do you need strict mode?
Strict mode is useful to write "secure" JavaScript by notifying "bad syntax" into real errors. For example, it eliminates accidentally creating a global variable by throw...