Interview Questions

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JavaScript Interview Questions

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41.

What is the difference between `__proto__` and `prototype`?

intermediate

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42.

How does prototypal inheritance work?

intermediate

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43.

What is the `new` operator and how does it work?

intermediate

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44.

What are callbacks and what is callback hell?

intermediate

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45.

What are Promises in JavaScript?

intermediate

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46.

What is the difference between `Promise.all()` and `Promise.allSettled()`?

intermediate

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47.

What is async/await?

intermediate

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48.

What is event delegation?

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49.

What is event bubbling and event capturing?

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50.

What is the difference between `target` and `currentTarget` in events?

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51.

What is destructuring assignment?

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52.

What is the spread operator?

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53.

What is the rest parameter?

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54.

What are classes in JavaScript?

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55.

What are symbols in JavaScript?

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56.

What are Maps and Sets?

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57.

What are the different types of errors in JavaScript?

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58.

How do you create custom errors?

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59.

How do you handle errors in async/await?

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60.

What is debouncing and throttling?

intermediate

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Showing 41 to 60 of 115 results

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