From cf628007c85fa45f69dc8970aa106d995d515ea3 Mon Sep 17 00:00:00 2001
From: S-N-O-R-L-A-X <10195101536@stu.ecnu.edu.cn>
Date: Sat, 3 Dec 2022 23:00:13 +0800
Subject: [PATCH 1/4] Update stack.md

add javascript and typescript for stack
---
 docs/chapter_stack_and_queue/stack.md | 42 +++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/docs/chapter_stack_and_queue/stack.md b/docs/chapter_stack_and_queue/stack.md
index 80870a078..317bfe66b 100644
--- a/docs/chapter_stack_and_queue/stack.md
+++ b/docs/chapter_stack_and_queue/stack.md
@@ -143,13 +143,55 @@ comments: true
 === "JavaScript"
 
     ```js title="stack.js"
+    /* 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);
+
+    /* 访问栈顶元素 */
+    peek = stack[stack.length-1];
+
+    /* 元素出栈 */
+    pop = stack.pop();
+
+    /* 获取栈的长度 */
+    size = stack.length;
+
+    /* 判断是否为空 */
+    is_empty = stack.length === 0;
     ```
 
 === "TypeScript"
 
     ```typescript title="stack.ts"
+    /* 初始化栈 */
+    // Typescript 没有内置的栈类，可以把 Array 当作栈来使用 
+    const stack:number[] = [];
 
+    /* 元素入栈 */
+    stack.push(1);
+    stack.push(3);
+    stack.push(2);
+    stack.push(5);
+    stack.push(4);
+
+    /* 访问栈顶元素 */
+    peek = stack[stack.length-1];
+
+    /* 元素出栈 */
+    pop = stack.pop();
+
+    /* 获取栈的长度 */
+    size = stack.length;
+
+    /* 判断是否为空 */
+    is_empty = stack.length === 0;
     ```
 
 === "C"

From 75fa643113df0f08a4c8adaf00a7abbb5e9f4664 Mon Sep 17 00:00:00 2001
From: S-N-O-R-L-A-X <S-N-O-R-L-A-X@users.noreply.github.com>
Date: Sun, 4 Dec 2022 10:14:51 +0800
Subject: [PATCH 2/4] feat: add code in js

---
 .../chapter_stack_and_queue/stack.js          | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 codes/javascript/chapter_stack_and_queue/stack.js

diff --git a/codes/javascript/chapter_stack_and_queue/stack.js b/codes/javascript/chapter_stack_and_queue/stack.js
new file mode 100644
index 000000000..1b2e83b0e
--- /dev/null
+++ b/codes/javascript/chapter_stack_and_queue/stack.js
@@ -0,0 +1,28 @@
+/**
+ * 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);
+
+/* 访问栈顶元素 */
+peek = stack[stack.length - 1];
+
+/* 元素出栈 */
+pop = stack.pop();
+
+/* 获取栈的长度 */
+size = stack.length;
+
+/* 判断是否为空 */
+is_empty = stack.length === 0;

From b4991254dfe6bb77a8b31dc21ad53552979b0cf2 Mon Sep 17 00:00:00 2001
From: S-N-O-R-L-A-X <S-N-O-R-L-A-X@users.noreply.github.com>
Date: Sun, 4 Dec 2022 10:17:18 +0800
Subject: [PATCH 3/4] feat: add code in ts

---
 .../chapter_stack_and_queue/stack.ts          | 30 +++++++++++++++++++
 docs/chapter_stack_and_queue/stack.md         | 10 +++----
 2 files changed, 35 insertions(+), 5 deletions(-)
 create mode 100644 codes/typescript/chapter_stack_and_queue/stack.ts

diff --git a/codes/typescript/chapter_stack_and_queue/stack.ts b/codes/typescript/chapter_stack_and_queue/stack.ts
new file mode 100644
index 000000000..a6d2a5188
--- /dev/null
+++ b/codes/typescript/chapter_stack_and_queue/stack.ts
@@ -0,0 +1,30 @@
+/**
+ * File: stack.ts
+ * Created Time: 2022-12-04
+ * Author: S-N-O-R-L-A-X (snorlax.xu@outlook.com)
+ */
+
+/* 初始化栈 */
+// Typescript 没有内置的栈类，可以把 Array 当作栈来使用 
+const stack: number[] = [];
+
+/* 元素入栈 */
+stack.push(1);
+stack.push(3);
+stack.push(2);
+stack.push(5);
+stack.push(4);
+
+/* 访问栈顶元素 */
+const peek = stack[stack.length - 1];
+
+/* 元素出栈 */
+const pop = stack.pop();
+
+/* 获取栈的长度 */
+const size = stack.length;
+
+/* 判断是否为空 */
+const is_empty = stack.length === 0;
+
+export { };
\ No newline at end of file
diff --git a/docs/chapter_stack_and_queue/stack.md b/docs/chapter_stack_and_queue/stack.md
index 317bfe66b..d738598d5 100644
--- a/docs/chapter_stack_and_queue/stack.md
+++ b/docs/chapter_stack_and_queue/stack.md
@@ -172,7 +172,7 @@ comments: true
     ```typescript title="stack.ts"
     /* 初始化栈 */
     // Typescript 没有内置的栈类，可以把 Array 当作栈来使用 
-    const stack:number[] = [];
+    const stack: number[] = [];
 
     /* 元素入栈 */
     stack.push(1);
@@ -182,16 +182,16 @@ comments: true
     stack.push(4);
 
     /* 访问栈顶元素 */
-    peek = stack[stack.length-1];
+    const peek = stack[stack.length - 1];
 
     /* 元素出栈 */
-    pop = stack.pop();
+    const pop = stack.pop();
 
     /* 获取栈的长度 */
-    size = stack.length;
+    const size = stack.length;
 
     /* 判断是否为空 */
-    is_empty = stack.length === 0;
+    const is_empty = stack.length === 0;
     ```
 
 === "C"

From a841a6fe42b54e22789cce4deddb1eea4a601560 Mon Sep 17 00:00:00 2001
From: S-N-O-R-L-A-X <S-N-O-R-L-A-X@users.noreply.github.com>
Date: Sun, 4 Dec 2022 10:22:18 +0800
Subject: [PATCH 4/4] fix: use const to declare variables in js

---
 codes/javascript/chapter_stack_and_queue/stack.js | 8 ++++----
 docs/chapter_stack_and_queue/stack.md             | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/codes/javascript/chapter_stack_and_queue/stack.js b/codes/javascript/chapter_stack_and_queue/stack.js
index 1b2e83b0e..9afbdc2c1 100644
--- a/codes/javascript/chapter_stack_and_queue/stack.js
+++ b/codes/javascript/chapter_stack_and_queue/stack.js
@@ -16,13 +16,13 @@ stack.push(5);
 stack.push(4);
 
 /* 访问栈顶元素 */
-peek = stack[stack.length - 1];
+const peek = stack[stack.length - 1];
 
 /* 元素出栈 */
-pop = stack.pop();
+const pop = stack.pop();
 
 /* 获取栈的长度 */
-size = stack.length;
+const size = stack.length;
 
 /* 判断是否为空 */
-is_empty = stack.length === 0;
+const is_empty = stack.length === 0;
diff --git a/docs/chapter_stack_and_queue/stack.md b/docs/chapter_stack_and_queue/stack.md
index d738598d5..eed703353 100644
--- a/docs/chapter_stack_and_queue/stack.md
+++ b/docs/chapter_stack_and_queue/stack.md
@@ -155,16 +155,16 @@ comments: true
     stack.push(4);
 
     /* 访问栈顶元素 */
-    peek = stack[stack.length-1];
+    const peek = stack[stack.length-1];
 
     /* 元素出栈 */
-    pop = stack.pop();
+    const pop = stack.pop();
 
     /* 获取栈的长度 */
-    size = stack.length;
+    const size = stack.length;
 
     /* 判断是否为空 */
-    is_empty = stack.length === 0;
+    const is_empty = stack.length === 0;
     ```
 
 === "TypeScript"