From f50e2f98800e1dd87ecdaf6f37f13bed97e5eec3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Feje=C5=A1?= <ns.fejes.stefan@gmail.com>
Date: Tue, 19 Dec 2017 21:35:56 +0100
Subject: [PATCH] add isPrime

---
 snippets/isPrime.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 snippets/isPrime.md

diff --git a/snippets/isPrime.md b/snippets/isPrime.md
new file mode 100644
index 000000000..1906c7d18
--- /dev/null
+++ b/snippets/isPrime.md
@@ -0,0 +1,14 @@
+### isPrime
+
+Checks if the provided intiger is primer number.
+
+Returns `false` if the provided number has positive divisors other than 1 and itself or if the number itself is less than 2.
+
+```js
+const isPrime = num =>
+  for (var i = 2; i < num; i++) if (num % i == 0) return false;
+  return num >= 2;
+// isPrime(11) -> true
+// isPrime(12) -> false
+// isPrime(1) -> false
+```