Q2121. Can you dispatch multiple actions in a row with useReducer?
Yes, you can dispatch multiple actions in a row using `useReducer` but not directly in one call. You'd have to call dispatch multiple times or create a composite action i...
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Q2122. Finally, tell us about bitwise operators in Python?
python interview questions for freshers These operate on values bit by bit. AND (&) This performs & on each bit pair. ```python >>> 0b110 & 0b010 ``` 2 OR (|) This perfor...
Q2123. Are enums available in javascript?
No, javascript does not natively support enums. But there are different kinds of solutions to simulate them even though they may not provide exact equivalents. For exampl...
Q2124. Is dispatch from useReducer asynchronous and does it update state immediately?
The `dispatch` function returned by `useReducer` is **not asynchronous** — it is a **synchronous** function call. When you call `dispatch(action)`, React **synchronously*...
Q2125. What data types does Python support?
Python provides us with five kinds of data types: Numbers – Numbers use to hold numerical values. ```python >>> a=7.0 ``` >>> Strings – A string is a sequence of characte...
Q2126. What is an enum?
An enum is a type restricting variables to one value from a predefined set of constants. JavaScript has no enums but typescript provides built-in enum support. ```javascr...
Q2127. How does useContext works? Explain with an example
The `useContext` hook can be used for authentication state management across multiple components and pages in a React application. Let's build a simple authentication flo...
Q2128. How would you convert a string into an int in Python?
If a string contains only numerical characters, you can convert it into an integer using the int() function. ```python >>> int('227') ``` 227 Let's check the types: ```py...
Q2129. How do you list all properties of an object?
You can use the `Object.getOwnPropertyNames()` method which returns an array of all properties found directly in a given object. Let's see the usage of this in an example...
Q2130. Can You Use Multiple Contexts in One Component?
Yes, it is possible. You can use multiple contexts inside the same component by calling useContext multiple times, once for each context. It can be achieved with below st...