Tip 1: Practice coding daily.
Tip 2: Master JavaScript closures, promises, and responsive layouts.
Tip 1: Quantify impact.
Tip 2: Highlight relevant project technologies.
Explain the difference between Promises and callbacks. Write a small function that simulates fetching data using async/await.
How do you programmatically add a new element to a page using JavaScript? Provide the necessary JavaScript methods.
What is one technique you can use to improve the loading performance of a web page containing many images?
Describe the CSS Box Model. How do the box-sizing: content-box; and box-sizing: border-box; properties affect how width and height are calculated?
What is a closure in JavaScript? (Learn) Provide a simple code example demonstrating how a closure works and why it is useful.

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What is the purpose of the return keyword?