Only create elements array once

mjbvz · mjbvz · commit 99ee26ce10f7 · 2019-09-19T17:46:44.000-07:00
diff --git a/src/vs/base/common/history.ts b/src/vs/base/common/history.ts
@@ -62,7 +62,8 @@ export class HistoryNavigator<T> implements INavigator<T> {
 
 	private _onChange() {
 		this._reduceToLimit();
-		this._navigator = new ArrayNavigator(this._elements, 0, this._elements.length, this._elements.length);
+		const elements = this._elements;
+		this._navigator = new ArrayNavigator(elements, 0, elements.length, elements.length);
 	}
 
 	private _reduceToLimit() {

Original file line number	Diff line number	Diff line change
`@@ -62,7 +62,8 @@ export class HistoryNavigator<T> implements INavigator<T> {`
`62`	`62`
`63`	`63`	`private _onChange() {`
`64`	`64`	`this._reduceToLimit();`
`65`		`- this._navigator = new ArrayNavigator(this._elements, 0, this._elements.length, this._elements.length);`
	`65`	`+ const elements = this._elements;`
	`66`	`+ this._navigator = new ArrayNavigator(elements, 0, elements.length, elements.length);`
`66`	`67`	`}`
`67`	`68`
`68`	`69`	`private _reduceToLimit() {`