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Refactor peek function in Stack.

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This commit is contained in:
Oleksii Trekhleb 2018-05-24 09:10:48 +03:00
parent c8b3fb9983
commit 114748b876
1 changed files with 1 additions and 1 deletions
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2
src/data-structures/stack/Stack.js
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@ -16,7 +16,7 @@ export default class Stack {
* @return {*} * @return {*}
*/ */
peek() { peek() {
if (!this.linkedList.tail) { if (this.isEmpty()) {
return null; return null;
} }