How Should Multiple Progress Bars Be Handled In Javascript

I have a number of progress bars each tied to a div which are updated using 'setTimeouts'. An example of how it runs is like this : myDiv._timer = setTimeout(function () {

Solution 1:

Check this out:http://jsfiddle.net/MZc8X/11/

I created an array of objects which contains the container id and its increment value.

// array to maintain progress barsvar pbArr = [{
    pid: 'bar1', // parent container id
    incr: 1// increment value
}, {
    pid: 'bar2',
    incr: 2
}, {
    pid: 'bar3',
    incr: 3
}, {
    pid: 'bar4',
    incr: 4
}, {
    pid: 'bar5',
    incr: 5
}];

And, then call a function to create a progress bar...

var loopCnt = 1; // loop count to maintain widthvar pb_timeout; // progress bar timeout function// create progress bar functionvar createPB = function () {

    var is_all_pb_complete = true; // flag to check whether all progress bar are completed executedfor (var i = 0; i < pbArr.length; i++) {
        var childDiv = document.querySelector('#' + pbArr[i].pid + ' div'); // child divvar newWidth = loopCnt * pbArr[i].incr; // new widthif (newWidth <= 100) {
            is_all_pb_complete = false;
            childDiv.style.width = newWidth + '%';
        } else {
            childDiv.style.width = '100%';
        }
    }

    if (is_all_pb_complete) { // if true, then clear timeoutclearTimeout(pb_timeout);
        return;
    }

    loopCnt++; // increment loop count// recall function
    pb_timeout = setTimeout(function () {
        createPB();
    }, 1000);
}

// call function to initiate progress barscreatePB();

Hope, it works for you.