hello-algo/codes/javascript/chapter_stack_and_queue/stack.js

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2022-12-04 02:14:51 +00:00
/**
* File: stack.js
* Created Time: 2022-12-04
* Author: S-N-O-R-L-A-X (snorlax.xu@outlook.com)
*/
/* 初始化栈 */
// Javascript 没有内置的栈类,可以把 Array 当作栈来使用
const stack = [];
/* 元素入栈 */
stack.push(1);
stack.push(3);
stack.push(2);
stack.push(5);
stack.push(4);
console.log("栈 stack =", stack)
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/* 访问栈顶元素 */
const peek = stack[stack.length - 1];
console.log("栈顶元素 peek =", peek)
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/* 元素出栈 */
const pop = stack.pop();
console.log("出栈元素 pop =", pop)
console.log("出栈后 stack =", stack)
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/* 获取栈的长度 */
const size = stack.length;
console.log("栈的长度 size =", size)
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/* 判断是否为空 */
const is_empty = stack.length === 0;
console.log("栈是否为空 =", is_empty)