Code Typing · JavaScript
Fetch with Retry
Retry failed HTTP requests with exponential backoff.
Difficulty: Intermediate · 12 Lines · License: public-domain
async function fetchRetry(url, tries = 3) {
for (let i = 0; i < tries; i++) {
try {
const res = await fetch(url);
if (res.ok) return res.json();
throw new Error(`HTTP ${res.status}`);
} catch (err) {
if (i === tries - 1) throw err;
await new Promise((r) => setTimeout(r, 2 ** i * 100));
Time0:00
Speed (WPM)0.0
Accuracy100.0%
Mistakes0
Live Keyboard
Next Key: A | Last Pressed: -
Progress: 0.0%
`
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