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John Doe
Mon Mar 17 2025
Understanding JavaScript Closures
Closures are essential for data privacy and callback functions in JavaScript. They help in functional programming paradigms and maintaining state without polluting the global scope.
John Doe
Sat Jan 18 2025
What is the difference between var, let, and const?
Use 'let' and 'const' over 'var' to avoid scope-related issues. 'const' is for values that shouldn't change, while 'let' is for variables that might be reassigned.
Alice Johnson
Fri Mar 14 2025
What is the Virtual DOM in React?
React uses the Virtual DOM to optimize rendering performance by updating only the changed parts instead of the entire DOM tree.
Olivia White
Wed Mar 12 2025
What is Redux, and why is it used in React applications?
Redux provides a single source of truth for state, making it easier to manage complex application data flow with predictable state updates.
Michael Smith
Tue Mar 11 2025
What are RESTful APIs, and how do they work?
A RESTful API uses HTTP methods (GET, POST, PUT, DELETE) and follows stateless principles to ensure scalability and efficiency.
Emma Wilson
Sun Mar 09 2025
What is the difference between GET and POST requests?
GET is used to retrieve data without modifying it, while POST is used to send data to the server for processing.
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