refactor: refer directly to editor when possible

client/src/templates/Challenges/classic/Editor.js

@@ -128,15 +128,15 @@ class Editor extends Component {
 
   editorDidMount = (editor, monaco) => {
     this._editor = editor;
-    this._editor.updateOptions({
+    editor.updateOptions({
       accessibilitySupport: this.props.inAccessibilityMode ? 'on' : 'auto'
     });
     // Users who are using screen readers should not have to move focus from
     // the editor to the description every time they open a challenge.
     if (this.props.canFocus && !this.props.inAccessibilityMode) {
-      this._editor.focus();
+      editor.focus();
     } else this.focusOnHotkeys();
-    this._editor.addAction({
+    editor.addAction({
       id: 'execute-challenge',
       label: 'Run tests',
       keybindings: [
@@ -145,7 +145,7 @@ class Editor extends Component {
       ],
       run: this.props.executeChallenge
     });
-    this._editor.addAction({
+    editor.addAction({
       id: 'leave-editor',
       label: 'Leave editor',
       keybindings: [monaco.KeyCode.Escape],
@@ -154,7 +154,7 @@ class Editor extends Component {
         this.props.setEditorFocusability(false);
       }
     });
-    this._editor.addAction({
+    editor.addAction({
       id: 'save-editor-content',
       label: 'Save editor content to localStorage',
       keybindings: [
@@ -162,7 +162,7 @@ class Editor extends Component {
       ],
       run: this.props.saveEditorContent
     });
-    this._editor.addAction({
+    editor.addAction({
       id: 'toggle-accessibility',
       label: 'Toggle Accessibility Mode',
       keybindings: [monaco.KeyMod.CtrlCmd | monaco.KeyCode.F1],
@@ -171,16 +171,14 @@ class Editor extends Component {
         // The store needs to be updated first, as onDidChangeConfiguration is
         // called before updateOptions returns
         this.props.setAccessibilityMode(!currentAccessibility);
-        this._editor.updateOptions({
+        editor.updateOptions({
           accessibilitySupport: currentAccessibility ? 'auto' : 'on'
         });
       }
     });
-    this._editor.onDidFocusEditorWidget(() =>
-      this.props.setEditorFocusability(true)
-    );
+    editor.onDidFocusEditorWidget(() => this.props.setEditorFocusability(true));
     // This is to persist changes caused by the accessibility tooltip.
-    this._editor.onDidChangeConfiguration(event => {
+    editor.onDidChangeConfiguration(event => {
       if (
         event.hasChanged(monaco.editor.EditorOption.accessibilitySupport) &&
         editor.getRawOptions().accessibilitySupport === 'on' &&