Click 이벤트 중복 방지처리

click handler

var _lastCickTime = new Date().getTime();

document.addEventListener('click', function (e) {
    var clickTime = e['timeStamp'];
    
    if (clickTime && (click_time - _lastCickTime) < 500) {
        e.stopImmediatePropagation();
        e.preventDefault();
        return false;
    }
    _lastCickTime = clickTime;
    
}, true);                                           // true  : event capturing phase