cleanup

src/terminal/index.ts

@@ -375,7 +375,7 @@ class TerminalWidget extends Widget {
   private _colWidth = -1;
   private _offsetWidth = -1;
   private _offsetHeight = -1;
-  private _sessionSize: number[] = [1, 1, 1, 1];
+  private _sessionSize: [number, number, number, number] = [1, 1, 1, 1];
   private _background = '';
   private _color = '';
   private _box: IBoxSizing = null;

test/src/terminal/terminal.spec.ts

@@ -93,7 +93,7 @@ describe('terminal/index', () => {
 
     describe('#session', () => {
 
-      it('should get be `null` by default', () => {
+      it('should be `null` by default', () => {
         expect(widget.session).to.be(null);
       });