feat: add ts solution to lc problem: No.0686 (#1500)

Author: thinkasany

solution/0600-0699/0686.Repeated String Match/README.md

@@ -133,6 +133,27 @@ func repeatedStringMatch(a string, b string) int {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function repeatedStringMatch(a: string, b: string): number {
+    const m: number = a.length,
+        n: number = b.length;
+    let ans: number = Math.ceil(n / m);
+    let t: string = a.repeat(ans);
+
+    for (let i = 0; i < 3; i++) {
+        if (t.includes(b)) {
+            return ans;
+        }
+        ans++;
+        t += a;
+    }
+
+    return -1;
+}
+```
+
 ### **...**
 
 ```

solution/0600-0699/0686.Repeated String Match/README_EN.md

@@ -110,6 +110,27 @@ func repeatedStringMatch(a string, b string) int {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function repeatedStringMatch(a: string, b: string): number {
+    const m: number = a.length,
+        n: number = b.length;
+    let ans: number = Math.ceil(n / m);
+    let t: string = a.repeat(ans);
+
+    for (let i = 0; i < 3; i++) {
+        if (t.includes(b)) {
+            return ans;
+        }
+        ans++;
+        t += a;
+    }
+
+    return -1;
+}
+```
+
 ### **...**
 
 ```

solution/0600-0699/0686.Repeated String Match/Solution.ts

@@ -0,0 +1,16 @@
+function repeatedStringMatch(a: string, b: string): number {
+    const m: number = a.length,
+        n: number = b.length;
+    let ans: number = Math.ceil(n / m);
+    let t: string = a.repeat(ans);
+
+    for (let i = 0; i < 3; i++) {
+        if (t.includes(b)) {
+            return ans;
+        }
+        ans++;
+        t += a;
+    }
+
+    return -1;
+}