update docs

docs/js/index.js

@@ -17,29 +17,26 @@ function initApp(app) {
     });
 }
 
-function timeTaken(callback) {
-    console.time('timeTaken');
-    const r = callback();
-    console.timeEnd('timeTaken');
-    return r;
-}
-
-var $error = document.querySelector('.error-tip');
-document.querySelector('.run').addEventListener('click', function (e) {
+function runApp() {
     try {
         Artplayer.instances.forEach(ins => {
             ins.destroy(true)
         });;
-        timeTaken(function () {
-            eval(mirror.getValue());
-        });
+        eval(mirror.getValue());
         initApp(Artplayer.instances[0]);
+        $error.style.display = 'none';
         $error.innerHTML = '';
     } catch (error) {
         var msg = error.message.trim();
+        $error.style.display = 'block';
         $error.innerHTML = '请打开控制台：' + msg;
         console.error(msg);
     }
+}
+
+var $error = document.querySelector('.error-tip');
+document.querySelector('.run').addEventListener('click', function (e) {
+    runApp();
 });
 
 creatCodeMirror(`
@@ -47,4 +44,6 @@ new Artplayer({
     container: '.artplayer-app',
     url: 'https://blog.zhw-island.com/assets-cdn/video/one-more-time-one-more-chance-480p.mp4'
 });
-`);
+`);
+
+runApp();