What is exponential backoff in JavaScript?

Can you explain what exponential backoff is in JavaScript?

Exponential backoff is an algorithm used to space out retries for operations that fail, like network requests. It increases the wait time exponentially with each retry.

How do I implement exponential backoff in my JavaScript code?

You can implement it using a function that retries an operation after a delay that increases exponentially. Would you like a code example?

Yes, please provide a code example!

Here's a simple example:

function exponentialBackoff(retryCount) {
    const delay = Math.pow(2, retryCount) * 1000; // delay in milliseconds
    return new Promise(resolve => setTimeout(resolve, delay));
}

async function fetchWithRetry(url, retries) {
    for (let i = 0; i < retries; i++) {
        try {
            const response = await fetch(url);
            if (!response.ok) throw new Error('Network response was not ok');
            return await response.json();
        } catch (error) {
            await exponentialBackoff(i);
        }
    }
    throw new Error('Max retries reached');
}

This function will retry fetching a URL with exponential backoff.