What to do when iscroll instantiates an unknown number of content blocks?

Question

When there are multiple classes of the same class: What should I do when iscroll instantiates an unknown number of content blocks? What should I do if I only write one instance and only the first content will take effect? ​​Do I need to write a for loop? how to write?

Answer 1

<script>

    var iscroll = document.getElementsByClassName("my-iscroll-wrapper");
    for (var i = 0; i < iscroll.length; i++) {
        var myScroll = new IScroll(iscroll[i], {
            //代码块
        });
    }
</script>