如何找出使用Javascript通过我的网站点击过3次的用户

Question

Is there any way in JavaScript how to find out user clicked through the same domain 2 or more times?

I need to popup a window after user clicked anywhere on the site for 3 times. I know how to do it after one click - with document.referrer or addEventListener , but then I'm lost.

I need something that will capture all click events (not only links) and count them.

Answer 1

Sure. You need to store a list of users' click events, either in a cookie, or in a server-side data store. On every recorded click, increment the count by one, and do your thing when the number hits 3.

Try using session cookies to store state between pages -- they're fast, pretty widely compatible, and will zero out when the browser shuts down, to keep from spamming your users' cookie jars.

Answer 2

I tried this and it worked fine:

window.onload = function() {
    var clicked = readCookie('popunder');
    if(clicked == null) {
        clicked = 0;
    }

    var allLinks = document.getElementsByTagName("a");
    for(i=0;i<=allLinks.length;i++) {
        allLinks[i].addEventListener("click",countClicks,true);
    }

    function countClicks() {           
        if(clicked == 2) {
            popunder(); //something to do
        } else {
            clicked++;
            doCookie('popunder', clicked, 1);
            alert(clicked);
        }
    }

    function popunder() { alert('thats 3 clicks!'); }

    function doCookie(name,value,days) {
        if (days) {
            var date = new Date();
            date.setTime(date.getTime()+(days*24*60*60*1000));
            var expires = "; expires="+date.toGMTString();
        } else {
            var expires = "";
        }
        document.cookie = name+"="+value+expires+"; path=/";
    }

    function readCookie(name) {
        var readName = name + "=";
        var cSplit = document.cookie.split(';');
        for(var i=0;i < cSplit.length;i++) {
            var sc = cSplit[i];
            while (sc.charAt(0)==' ') sc = sc.substring(1,sc.length);
            if (sc.indexOf(readName) == 0) return sc.substring(readName.length,sc.length);
        }
        return null;
    }
}

Answer 3

Thanks for all your advice. I tried this code. But after the refresh the clicked variable goes to 0 again. I need to save every new value of clicked into cookie (or whatever else), so its number will rise with every click on link on page. Is it possible to change value of the variable in cookie this way?

window.onload = function(){

var **allLinks** = document.getElementsByTagName("a");

var **clicked** = 0;

**doCookie**('popunder',clicked,1);

for(i=0;i<=allLinks.length;i++){
    allLinks[i].addEventListener("click",countClicks,true);
}

function **countClicks**(){           
        if(clicked == 3){
            popunder(); //something to do
        }
        else{
            alert(readCookie('popunder'));
            return clicked++;
        }
}

function **doCookie**(name,value,days) {
if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}

function **readCookie**(name) {
    var readName = name + "=";
    var cSplit = document.cookie.split(';');
    for(var i=0;i < cSplit.length;i++) {
        var sc = cSplit[i];
        while (sc.charAt(0)==' ') sc = sc.substring(1,sc.length);
        if (sc.indexOf(readName) == 0) return sc.substring(readName.length,sc.length);
    }
        return null;
}