I want a webpage in which when I click a link appended into li in ul, a variable is stored. My code is

var data = ["item1", "item2", "item3"];
          for(i in data){
            var li = document.createElement('li');
            li.innerHTML = data[i].link("blog.html");
            var a = document.createElement("a");
            a.textContent = data[1];
            a.setAttribute('href', "blog.html");
            var name = data[i];
            a.setAttribute('onClick', "sessionStorage.someKey = data[i]");
            li.appendChild(a);
            list.appendChild(li);
          }