Initial data commit

Task/Least-common-multiple/JavaScript/least-common-multiple-1.js

@@ -0,0 +1,14 @@
+function LCM(A)  // A is an integer array (e.g. [-50,25,-45,-18,90,447])
+{
+    var n = A.length, a = Math.abs(A[0]);
+    for (var i = 1; i < n; i++)
+     { var b = Math.abs(A[i]), c = a;
+       while (a && b){ a > b ? a %= b : b %= a; }
+       a = Math.abs(c*A[i])/(a+b);
+     }
+    return a;
+}
+
+/* For example:
+   LCM([-50,25,-45,-18,90,447]) -> 67050
+*/

Task/Least-common-multiple/JavaScript/least-common-multiple-2.js

@@ -0,0 +1,18 @@
+(() => {
+    'use strict';
+
+    // gcd :: Integral a => a -> a -> a
+    let gcd = (x, y) => {
+        let _gcd = (a, b) => (b === 0 ? a : _gcd(b, a % b)),
+            abs = Math.abs;
+        return _gcd(abs(x), abs(y));
+    }
+
+    // lcm :: Integral a => a -> a -> a
+    let lcm = (x, y) =>
+        x === 0 || y === 0 ? 0 : Math.abs(Math.floor(x / gcd(x, y)) * y);
+
+    // TEST
+    return lcm(12, 18);
+
+})();