Simplify progress data

quiz.js

@@ -2,7 +2,7 @@
 // ./LICENSE for more details.
 
 "use strict";
-const version = "$Id: quiz.js,v 1.10 2024/01/15 19:25:55 oj14ozun Exp oj14ozun $";
+const version = "$Id: quiz.js,v 1.11 2024/01/15 19:31:13 oj14ozun Exp oj14ozun $";
 
 const answers     = document.getElementById("answers");
 const text        = document.getElementById("text");
@@ -37,7 +37,7 @@ function shuf(arr) {            // shuffle arr using Fisher–Yates
 }
 
 function get_data(q) {
-    return progress[q.id] || { "right": 0, "wrong": 0, "count": 0 };;
+    return progress[q.id] || { "right": 0, "wrong": 0 };
 }
 
 function evaluate(q) {
@@ -50,10 +50,8 @@ function update_stats(q) {
 
     // update stats
     stats.innerHTML =
-            "<abbr title=\"Wie oft gesehen\">n</abbr> = " + data.count
-        + ", <abbr title=\"Wie oft richtig\">r</abbr> = " + data.right
-        + ", <abbr title=\"Wie oft falsch\">f</abbr> = " + data.wrong
-        + "; <abbr title=\"Anzahl an Fragen insgesammt\">#</abbr> = " + questions.length;
+        "<abbr title=\"Wie oft richtig\">" + data.right + "</abbr>:"
+        + "<abbr title=\"Wie oft falsch\">" + data.wrong + "</abbr>";
 }
 
 function remember(q, ok) {
@@ -64,7 +62,6 @@ function remember(q, ok) {
     } else {
         data["wrong"]++;
     }
-    data["count"]++;
 
     progress[q.id] = data;
     window.sessionStorage.setItem("progress", progress);