Image Optimization

lazy-load heavy UI and optimize images

// Topic: Image Optimization
const perf = { images: 'optimized', payload: 'small' };
console.log(perf.images + ':' + perf.payload);

// Expected Output: optimized:small

• 1Size images, provide alt text, and lazy-load below-the-fold media. Use the focus terms (image, optimization, reference UB02BF4) to keep this lesson tied to its exact Nuxt.js topic.
• 2Document optimized image delivery and responsive loading choices with focus terms: image, optimization, reference UB02BF4 in the smallest useful page, layout, composable, store, server route, or deployment step.
• 3Represent every loading, success, denied, stale, and failure state that Image Optimization can expose.
• 4Check dimensions, formats, lazy loading, alt text, and LCP image priority. Include a check for these focus terms: image, optimization, reference UB02BF4.
• 5Use image weight and LCP tracked for image, optimization, reference UB02BF4 to guide improvements.
• 6Start with clear requirements and one minimal working example.
• 7Use meaningful names that explain business intent.
• 8Keep examples small enough to debug line by line.
• 9Validate input at every trust boundary.
• 10Handle errors explicitly and preserve useful context.
• 11Prefer simple control flow over deeply nested logic.
• 12Separate domain logic from I/O and framework code.
• 13Write tests for normal, boundary, and failure cases.
• 14Review security assumptions before production use.
• 15Measure performance before optimizing.
• 16Document non-obvious decisions close to the code or in project notes.
• 17Use official documentation when behavior is version-specific.
• 18Keep dependencies current and remove unused code.
• 19Avoid hardcoded secrets, credentials, and environment-specific paths.
• 20Log operational events without exposing sensitive data.
• 21Design examples so learners can safely modify and rerun them.
• 22Prefer maintainability over short-term cleverness.