signapp.js

    function sign() {
        var x=document.getElementById("input1").value;
         var x1=document.getElementById("input2").value;
         var x2=document.getElementById("input3").value;
         var x3=document.getElementById("input4").value;
        var array=[];
        array.push(x);
        array.push(x1);
        array.push(x2);
        array.push(x3);
        if(x==='' || x1===''||x2===''||x3==='')
        {
            alert('plz fill the form first')
        }
        else
        {
            localStorage.setItem('userdata',JSON.stringify(array));
         var win=window.location.href='index.html';
         console.log(win);

        }
        //  var mar= localStorage.getItem('marks');
        //  mar=0;
        //  localStorage.setItem('marks',mar);
     
        // console.log(array[0]);
        //   for(var i=0;i<array.lenght;i++)
        //  {
        //      console.log((i));
        //  }
        
    }
   
    //  console.log(mar);