eslint quality changes

src/js/persistent-ops.js

@@ -1,29 +1,28 @@
 module.exports = class PersistentOps {
-    getLatestComment(comments) {
-        if(comments && comments.length > 0)
-            return comments[comments.length - 1]['body'];
-    }
+  getLatestComment(comments) {
+    if (comments && comments.length > 0) { return comments[comments.length - 1].body; }
+  }
 
-    setCookie(cname, cvalue, exdays) {
-        var d = new Date();
-        d.setTime(d.getTime() + (exdays*24*60*60*1000));
-        var expires = "expires="+ d.toUTCString();
-        document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
-    }
+  setCookie(cname, cvalue, exdays) {
+    const d = new Date();
+    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
+    const expires = `expires=${d.toUTCString()}`;
+    document.cookie = `${cname}=${cvalue};${expires};path=/`;
+  }
 
-    getCookie(cname) {
-        var name = cname + "=";
-        var decodedCookie = decodeURIComponent(document.cookie);
-        var ca = decodedCookie.split(';');
-        for(var i = 0; i <ca.length; i++) {
-            var c = ca[i];
-            while (c.charAt(0) == ' ') {
-                c = c.substring(1);
-            }
-            if (c.indexOf(name) == 0) {
-                return c.substring(name.length, c.length);
-            }
-        }
-        return "";
+  getCookie(cname) {
+    const name = `${cname}=`;
+    const decodedCookie = decodeURIComponent(document.cookie);
+    const ca = decodedCookie.split(';');
+    for (let i = 0; i < ca.length; i++) {
+      let c = ca[i];
+      while (c.charAt(0) == ' ') {
+        c = c.substring(1);
+      }
+      if (c.indexOf(name) == 0) {
+        return c.substring(name.length, c.length);
+      }
     }
-}
+    return '';
+  }
+};