From cb0f5906fdf7a22a097958cbb89783905baf970f Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Sat, 8 Jan 2022 23:55:34 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=88=E9=93=BE?=
 =?UTF-8?q?=E8=A1=A8=E7=90=86=E8=AE=BA=E5=9F=BA=E7=A1=80.md=EF=BC=89?=
 =?UTF-8?q?=EF=BC=9A=E5=A2=9E=E5=8A=A0JS=E5=92=8CTS=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/链表理论基础.md | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/problems/链表理论基础.md b/problems/链表理论基础.md
index 02b7029e..109aa1ed 100644
--- a/problems/链表理论基础.md
+++ b/problems/链表理论基础.md
@@ -168,6 +168,32 @@ public class ListNode {
 }
 ```
 
+JavaScript:
+
+```javascript
+class ListNode {
+  val;
+  next = null;
+  constructor(value) {
+    this.val = value;
+    this.next = null;
+  }
+}
+```
+
+TypeScript:
+
+```typescript
+class ListNode {
+  public val: number;
+  public next: ListNode = null;
+  constructor(value: number) {
+    this.val = value;
+    this.next = null;
+  }
+}
+```
+
 Python：
 
 

From a246b9b4e6dc344925259f64150400ddb7661ed4 Mon Sep 17 00:00:00 2001
From: Steve2020 <841532108@qq.com>
Date: Sun, 9 Jan 2022 13:42:10 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=EF=BC=880203.=E7=A7=BB?=
 =?UTF-8?q?=E9=99=A4=E9=93=BE=E8=A1=A8=E5=85=83=E7=B4=A0.md=EF=BC=89?=
 =?UTF-8?q?=EF=BC=9A=E5=A2=9E=E5=8A=A0typescript=E7=89=88=E6=9C=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 problems/0203.移除链表元素.md | 56 +++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/problems/0203.移除链表元素.md b/problems/0203.移除链表元素.md
index 9d0ef91f..4e7bdd34 100644
--- a/problems/0203.移除链表元素.md
+++ b/problems/0203.移除链表元素.md
@@ -302,7 +302,63 @@ var removeElements = function(head, val) {
 };
 ```
 
+TypeScript:
+
+版本一（在原链表上直接删除）：
+
+```typescript
+/**
+ * Definition for singly-linked list.
+ * class ListNode {
+ *     val: number
+ *     next: ListNode | null
+ *     constructor(val?: number, next?: ListNode | null) {
+ *         this.val = (val===undefined ? 0 : val)
+ *         this.next = (next===undefined ? null : next)
+ *     }
+ * }
+ */
+function removeElements(head: ListNode | null, val: number): ListNode | null {
+    // 删除头部节点
+    while (head !== null && head.val === val) {
+        head = head.next;
+    }
+    if (head === null) return head;
+    let pre: ListNode = head, cur: ListNode = head.next;
+    // 删除非头部节点
+    while (cur) {
+        if (cur.val === val) {
+            pre.next = cur.next;
+        } else {
+            pre = pre.next;
+        }
+        cur = cur.next;
+    }
+    return head;
+};
+```
+
+版本二（虚拟头节点）：
+
+```typescript
+function removeElements(head: ListNode | null, val: number): ListNode | null {
+    head = new ListNode(0, head);
+    let pre: ListNode = head, cur: ListNode = head.next;
+    // 删除非头部节点
+    while (cur) {
+        if (cur.val === val) {
+            pre.next = cur.next;
+        } else {
+            pre = pre.next;
+        }
+        cur = cur.next;
+    }
+    return head.next;
+};
+```
+
 Swift：
+
 ```swift
 /**
  * Definition for singly-linked list.