clean code

resource/js/components/PageEditor.js

@@ -325,7 +325,7 @@ export default class PageEditor extends React.Component {
     this.setState({ markdown: value });
 
     // render html
-    var context = {
+    const context = {
       markdown: this.state.markdown,
       dom: this.previewElement,
       currentPagePath: decodeURIComponent(location.pathname)
@@ -340,7 +340,7 @@ export default class PageEditor extends React.Component {
       })
       .then(() => interceptorManager.process('postPreProcess', context))
       .then(() => {
-        var parsedHTML = growiRenderer.process(context.markdown);
+        const parsedHTML = growiRenderer.process(context.markdown);
         context['parsedHTML'] = parsedHTML;
       })
       .then(() => interceptorManager.process('prePostProcess', context))

resource/js/components/PageEditor/CodeMirrorEditor.js

@@ -162,7 +162,7 @@ export default class CodeMirrorEditor extends AbstractEditor {
 
     const editor = this.getCodeMirror();
     // get top position of the line
-    var top = editor.charCoords({line, ch: 0}, 'local').top;
+    const top = editor.charCoords({line, ch: 0}, 'local').top;
     editor.scrollTo(null, top);
   }
 
@@ -330,7 +330,7 @@ export default class CodeMirrorEditor extends AbstractEditor {
    * handle ENTER key
    */
   handleEnterKey() {
-    var context = {
+    const context = {
       handlers: [],  // list of handlers which process enter key
       editor: this,
     };