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36 lines
837 B
36 lines
837 B
/**
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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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/* Driver Code */
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/* 初始化堆疊 */
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// JavaScript 沒有內建的堆疊類別，可以把 Array 當作堆疊來使用
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const stack = [];
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/* 元素入堆疊 */
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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('堆疊 stack =', stack);
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/* 訪問堆疊頂元素 */
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const peek = stack[stack.length - 1];
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console.log('堆疊頂元素 peek =', peek);
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/* 元素出堆疊 */
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const pop = stack.pop();
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console.log('出堆疊元素 pop =', pop);
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console.log('出堆疊後 stack =', stack);
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/* 獲取堆疊的長度 */
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const size = stack.length;
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console.log('堆疊的長度 size =', size);
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/* 判斷是否為空 */
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const isEmpty = stack.length === 0;
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console.log('堆疊是否為空 =', isEmpty);
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