Javascript related code changes (#112)

* Add if statement for case where shortcutsGroup can be undefined
* Use "===" instead of "==". Comparison prefix "==" may cause unexpected type coercion
* Remove anonymous function wrapping

static/editor.js

@@ -1,4 +1,3 @@
-(function () {
 window.hyphaChanged = false;
 let textarea = document.querySelector('.edit-form__textarea');
 let form = document.querySelector('.edit-form');
@@ -18,4 +17,3 @@
 });
 
 window.addEventListener('beforeunload', warnBeforeClosing);
-})();

static/shortcuts.js

@@ -1,4 +1,3 @@
-(() => {
 const $ = document.querySelector.bind(document);
 const $$ = (...args) => Array.prototype.slice.call(document.querySelectorAll(...args));
 
@@ -263,10 +262,12 @@
                     listItem.appendChild(shortcutColumn);
                 }
 
+                if (shortcutsGroup) {
                     shortcutsGroup.appendChild(list);
                 }
             }
         }
+    }
 
     open() {
         this.prevActiveElement = document.activeElement;
@@ -364,4 +365,3 @@
         });
     }
 });
-})();

static/toolbar.js

@@ -44,8 +44,8 @@ function selectionWrapper(cursorPosition, prefix, postfix = null, el = editTexta
             // selection is decorated, so we just cut it
             removing = true
             result = text.substring(cursorPosition, text.length - cursorPosition)
-        } else if ( (prefix == el.value.slice(start-cursorPosition, start)) &&
-                    (postfix == el.value.slice(end, end+cursorPosition)) ) {
+        } else if ( (prefix === el.value.slice(start-cursorPosition, start)) &&
+                    (postfix === el.value.slice(end, end+cursorPosition)) ) {
             // selection is surrounded by decorations
             removing = true
             result = text