refactor: use internal method and remove toArray() method

2025-12-19 07:17:54 +08:00 · 2023-01-11 23:54:04 +08:00
parent 99f1494939
commit ac7d26c131
3 changed files with 12 additions and 24 deletions
--- a/codes/swift/chapter_stack_and_queue/array_stack.swift
+++ b/codes/swift/chapter_stack_and_queue/array_stack.swift
@@ -29,8 +29,9 @@ class ArrayStack {
    }

    /* 出栈 */
+    @discardableResult
    func pop() -> Int {
-        if stack.isEmpty {
+        if isEmpty() {
            fatalError("栈为空")
        }
        return stack.removeLast()
@@ -38,7 +39,7 @@ class ArrayStack {

    /* 访问栈顶元素 */
    func peek() -> Int {
-        if stack.isEmpty {
+        if isEmpty() {
            fatalError("栈为空")
        }
        return stack.last!