当div向左滚动时,我应该添加什么代码来触发一段代码块?
<script>
(function () {
function scrollH(e) {
e = window.event || e;
var delta = Math.max(-1, Math.min(1, (e.wheelDelta || -e.detail)));
document.getElementById('myDiv').scrollLeft -= (delta * 40);
e.preventDefault();
}
if (window.addEventListener) {
window.addEventListener("mousewheel", scrollH, false);
window.addEventListener("DOMMouseScroll", scrollH, false);
} else {
window.attachEvent("onmousewheel", scrollH);
}
if "scrollingLeft" {
// do something
}
else
{
// do something else
}
})();
</script>
到目前为止,我尝试了以下方法,但均无效:
var isleft = e.delta < 0;
if isleft = true { do something }