Update 0901-online-stock-span.js

aadil42 · web-flow · commit c6c00e535766 · 2023-07-02T21:09:46.000+05:30
Updated peek method.
diff --git a/javascript/0901-online-stock-span.js b/javascript/0901-online-stock-span.js
@@ -11,7 +11,7 @@ class StockSpanner {
     
     // Time O(1) | Space O(1)
     peek() {
-      return this.stack[this.stack.length - 1];
+      return this.isEmpty() ? null : this.stack[this.stack.length - 1];
     }
     
     // Time O(1) | Space O(1)

Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@ class StockSpanner {`
`11`	`11`
`12`	`12`	`// Time O(1) \| Space O(1)`
`13`	`13`	`peek() {`
`14`		`- return this.stack[this.stack.length - 1];`
	`14`	`+ return this.isEmpty() ? null : this.stack[this.stack.length - 1];`
`15`	`15`	`}`
`16`	`16`
`17`	`17`	`// Time O(1) \| Space O(1)`