feat: add typescript solution to lc problem: No.1689.Partitioning Into Minimum Number Of Deci-Binary Numbers (doocs#480)

Author: zhaocchen

solution/1600-1699/1689.Partitioning Into Minimum Number Of Deci-Binary Numbers/README.md

@@ -75,6 +75,16 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function minPartitions(n: string): number {
+    let nums = n.split('').map(d => parseInt(d));
+    let ans = Math.max(...nums);
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/1600-1699/1689.Partitioning Into Minimum Number Of Deci-Binary Numbers/README_EN.md

@@ -78,6 +78,16 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function minPartitions(n: string): number {
+    let nums = n.split('').map(d => parseInt(d));
+    let ans = Math.max(...nums);
+    return ans;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/1600-1699/1689.Partitioning Into Minimum Number Of Deci-Binary Numbers/Solution.ts

@@ -0,0 +1,5 @@
+function minPartitions(n: string): number {
+    let nums = n.split('').map(d => parseInt(d));
+    let ans = Math.max(...nums);
+    return ans;
+};