Q1541. What is React Dev Tools?
_React Developer Tools_ let you inspect the component hierarchy, including component props and state. It exists both as a browser extension (for Chrome and Firefox), and ...
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Q1542. What is form action in Next.js?
The `formAction` is a special attribute used in Next.js to define the action URL for a form submission. It allows you to specify a server-side function that will handle t...
Q1543. What are the principles for vuex application structure?
Vuex enforces below rules to structure any application. 1. Application-level state is centralized in the store. 2. The only way to mutate the state is by committing mutat...
Q1544. Whenever Python exits, why isn't all the memory de-allocated?
Whenever Python exits, especially those Python modules which are having circular references to other objects or the objects that are referenced from the global namespaces...
Q1545. What is the difference between a CSS preprocessor and a post-processor?
A CSS preprocessor generates CSS code from source code written in a higher-level scripting language, whereas a post-processor takes existing CSS code and applies transfor...
Q1546. What is the way to find the number of parameters expected by a function?
You can use `function.length` syntax to find the number of parameters expected by a function. Let's take an example of `sum` function to calculate the sum of numbers, ```...
Q1547. Why is DevTools not loading in Chrome for local files?
If you opened a local HTML file in your browser (`file://...`) then you must first open _Chrome Extensions_ and check `Allow access to file URLs`.
Q1548. How do you handle file uploads in Next.js?
By using the `formData` API in a server action to handle file uploads. ```jsx // app/upload/page.js "use server"; export async function handleUpload(formData) { const fil...
Q1549. Does Vuex support hot reloading?
Yes, vuex supports hot-reloading for mutations, modules, actions and getters during development. You need to use either webpack's hot module replacement API or browserify...
Q1550. What is a dictionary in Python?
The built-in datatypes in Python is called dictionary. It def ines one-to-one relationship between keys and values. Dictionaries contain pair of keys and their correspond...