2026-09-18 09:52:05 +02:00
parent 968ebe05bd
commit 818f064f2e
2 changed files with 21 additions and 6 deletions
@@ -24,7 +24,13 @@

      const number = 4566;

-      const getDigitSum = (n) => {};
+      const getDigitSum = (n) => {
+        const s = n
+          .toString() // => '4242'
+          .split('') // => ['4','2','4','2']
+          .reduce((n1, n2) => Number(n1) + Number(n2), 0);
+        return s;
+      };

      console.log(getDigitSum(4242)); //=> 12
      console.log(getDigitSum('13')); //=> 4