README.md

set-interval-serial

Wrapper for setInterval function to prevent overlapping execution

Extends setInterval and prevents the same function to start unless its previous execution is completed. Useful when running async tasks that can take time, but cannot run in parallel.

const setIntervalSerial = require('set-interval-serial');
const setTimeoutPromise = require('util').promisify(setTimeout);

const asyncFunction = async () => {
    await setTimeoutPromise(1000);
    console.log('Executing...');
};

// the output will appear every second, although the interval is set to 50ms
setIntervalSerial(asyncFunction, 50);