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