HowProgrammingWorks
diff --git a/‎JavaScript/9-gcd.js
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+10Lines changed: 10 additions & 0 deletions b/‎JavaScript/9-gcd.js
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+10Lines changed: 10 additions & 0 deletions
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+'use strict';
+
+const gcd = (a, b) => {
+  if (b === 0) return a;
+  return gcd(b, a % b);
+};
+
+// const gcd = (a, b) => (b === 0 ? a : gcd(b, a % b));
+
+console.log(gcd(12, 78));