setRandInterval() Execute a function at a randomized interval.

If you are doing some repeating operation like accessing a website, especially if you have multiple pages which need to be repeatedly accessed, to reduce load on the server you want to access them at different times. setRandInterval() allows you to run an operation on a given interval plus or minus a percentage.

const setRandInterval = require('setrandinterval');
// Print the time every 2 seconds, plus or minus 50% (between 1 second and 3 seconds)
// Stop after 10 times.
let i = 0;
const inter = setRandInterval(() => {
    console.log("plus-minus 50% - the time is " + new Date());
    if (i++ > 10) { inter.clear(); }
}, 2000, 50);


// Setting the "percent" value to zero will make setRandinterval() behave the same as setInterval()
i = 0;
const inter = setRandInterval(() => {
    console.log("plus-minus 0% - the time is " + new Date());
    if (i++ > 10) { inter.clear(); }
}, 2000, 0);


// Not passing the "percent" value will make it default to 20%
i = 0;
const inter = setRandInterval(() => {
    console.log("plus-minus 20% - the time is " + new Date());
    if (i++ > 10) { inter.clear(); }
}, 2000, 0);