算法与数据结构学习

Chapter4/stack.mjs

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+function push(element) {
+  this.dataSource[this.top++] = element;
+}
+
+function pop() {
+  return this.dataSource[--this.top];
+}
+
+function peek() {
+  return this.dataSource[this.top - 1];
+}
+
+function length() {
+  return this.top;
+}
+
+function clear() {
+  this.top = 0;
+}
+
+export default function Stack() {6
+  this.dataSource = [];
+  this.top = 0;
+  this.push = push;
+  this.pop = pop;
+  this.peek = peek;
+  this.length = length;
+  this.clear = clear;
+}