idleThrottleMinMax.js

var idleThrottle = function(timeoutMin, timeoutMax, cb){
    var idleId;

    return function(){
        var lastCall = Date.now();

        var queueIdleCheck = function(timeout){
            idleId = requestIdleCallback(function(){
                var currentCall = Date.now();
                var timeSinceLastCall = currentCall - lastCall;
                if(timeSinceLastCall < timeoutMin){
                    console.log('not ready, requeue', timeSinceLastCall)
                    return queueIdleCheck(timeoutMax - timeSinceLastCall);
                }
                console.log('called in', timeSinceLastCall);
                lastCall = currentCall;
                return cb();
            }, { timeout: timeout });
        };

        if(idleId){
            cancelIdleCallback(idleId);
        }

        queueIdleCheck(timeoutMax);
    };
};