$("tr.ng-scope").length

function count(){
    var count = 0;
    var table = $("tr.ng-scope");
    for(var i=0; i<table.length; i++) {
        var text = table[i].children[1].firstChild.textContent;
        if(text != "") {
            count++;
        }
    }
    console.log(count);
}