Design Patterns · Junior · Question 68 of 75

What is lazy loading?

✓Correct answer: Loading code or data only when it's needed, not upfront
2Loading everything slowly to save bandwidth
3Caching responses forever

Explanation

Examples: import() for routes, loading="lazy" for images. It reduces initial load at the cost of a delay later.

Further reading

react.dev: lazy ↗

Test yourself

Take the Design Patterns · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.