diff --git a/typescript/0706-design-hashmap.ts b/typescript/0706-design-hashmap.ts
new file mode 100644
index 000000000..bdef9a9f9
--- /dev/null
+++ b/typescript/0706-design-hashmap.ts
@@ -0,0 +1,20 @@
+class MyHashMap {
+    private cache: Map<number, number>;
+
+    constructor() {
+        this.cache = new Map<number, number>();
+    }
+
+    put(key: number, value: number): void {
+        this.cache.set(key, value);
+    }
+
+    get(key: number): number {
+        const value = this.cache.get(key);
+        return value !== undefined ? value : -1;
+    }
+
+    remove(key: number): void {
+        this.cache.delete(key);
+    }
+}