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fine tune

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This commit is contained in:
Yudong Jin
2022-12-24 12:53:16 +08:00
parent 49fe239cfa
commit 17909162fc
2 changed files with 7 additions and 13 deletions
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8
codes/javascript/chapter_stack_and_queue/linkedlist_stack.js
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@ -8,7 +8,7 @@ const ListNode = require("../include/ListNode");
/* 基于链表实现的栈 */
class LinkedListStack {
#stackPeek; // 将头结点作为栈顶
#stackPeek; // 将头结点作为栈顶
#stkSize = 0; // 栈的长度
constructor() {
@ -36,9 +36,6 @@ class LinkedListStack {
/* 出栈 */
pop() {
const num = this.peek();
if (!this.#stackPeek) {
throw new Error("栈为空！");
}
this.#stackPeek = this.#stackPeek.next;
this.#stkSize--;
return num;
@ -46,9 +43,8 @@ class LinkedListStack {
/* 访问栈顶元素 */
peek() {
if (!this.#stackPeek) {
if (!this.#stackPeek)
throw new Error("栈为空！");
}
return this.#stackPeek.val;
}