⚡ Bolt: Optimize DOM insertions in frontend file list#17
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- In `public/index.html`'s `loadFiles()` function, DOM elements for each changed file were being appended sequentially to the container inside a `forEach` loop. - Introduced `DocumentFragment` to batch all file item insertions. The individual `fileDiv`s are appended to the fragment, and then the fragment is appended to the container in one operation. - This optimization eliminates O(N) layout thrashing and reflows, improving rendering performance for repositories with numerous staged/unstaged files. Co-authored-by: PrakharMNNIT <73683289+PrakharMNNIT@users.noreply.github.com>
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📝 WalkthroughWalkthroughThis change optimizes DOM manipulation in the loadFiles function by batching element insertions using DocumentFragment instead of appending individual elements directly to the DOM within the loop. Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~8 minutes Poem
🚥 Pre-merge checks | ✅ 3✅ Passed checks (3 passed)
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💡 What: Replaced sequential
container.appendChild(fileDiv)within adata.files.forEachloop with batched insertions usingDocumentFragment.🎯 Why: To reduce layout thrashing and unnecessary reflows in the browser which cause significant UI lag when visualizing a high number of files.
📊 Impact: Prevents O(N) DOM repaints. Performance scales significantly better with O(1) DOM insertion relative to the number of files staged/unstaged.
🔬 Measurement: Verify by staging hundreds of changes (
git add .) and reloadinghttp://localhost:3002. The file list should render noticeably faster with reduced main thread blocking time.PR created automatically by Jules for task 14007413089666427570 started by @PrakharMNNIT
Summary by CodeRabbit