Jeeva.ai Interview Questions and Answers

Redux offers centralized state management, time-travel debugging, middleware support, and better performance compared to Context API in React.

• Redux provides a centralized store for managing application state, making it easier to maintain and update state across components.

• Redux allows for time-travel debugging, enabling developers to easily track and debug state changes over time.

• Redux supports middleware, allowing for...read more

Uncontrolled components are useful when you want to allow user input without controlling the value of the input field.

• Useful for simple forms where you don't need to validate or manipulate the input data.

• Can be used for search bars where the input value is not critical to the application state.

• Helpful for input fields that are part of a larger form and don't require immediate validation.

Use 'let' for block-scoped variables, 'var' for function-scoped variables.

• Use 'let' when you want to declare a variable with block scope.

• Use 'var' when you want to declare a variable with function scope.

• Using 'let' helps prevent variable hoisting and can lead to cleaner code.

• Example: let x = 10; for (let i = 0; i < x; i++) { console.log(i); }

• Example: var y = 20; function test() { var z = 30; console.log(y + z); }

Local storage is considered more secure due to its same-origin policy and limited access by other websites.

• Local storage is more secure as it is limited to the same origin policy, meaning only the website that stored the data can access it.

• Local storage data is not sent with every HTTP request, reducing the risk of data interception.

• Session storage is also secure but data is lost when the browser is closed, making it l...read more