Initial data commit

Task/Damm-algorithm/JavaScript/damm-algorithm.js

@@ -0,0 +1,21 @@
+const table = [
+    [0, 3, 1, 7, 5, 9, 8, 6, 4, 2],
+    [7, 0, 9, 2, 1, 5, 4, 8, 6, 3],
+    [4, 2, 0, 6, 8, 7, 1, 3, 5, 9],
+    [1, 7, 5, 0, 9, 8, 3, 4, 2, 6],
+    [6, 1, 2, 3, 0, 4, 5, 9, 7, 8],
+    [3, 6, 7, 4, 2, 0, 9, 5, 8, 1],
+    [5, 8, 6, 9, 7, 2, 0, 1, 3, 4],
+    [8, 9, 4, 5, 3, 6, 2, 0, 1, 7],
+    [9, 4, 3, 8, 6, 1, 7, 2, 0, 5],
+    [2, 5, 8, 1, 4, 3, 6, 7, 9, 0],
+ ];
+
+const lookup = (p, c) => table[p][parseInt(c, 10)]
+const damm = input => [...input].reduce(lookup, 0) === 0;
+
+// ----------------------------------------------------------[ Tests ]----
+const test = () => ["5724", "5727", "112946", "112949"].forEach(e =>
+    console.log(`${e} => ${damm(e) ? 'Pass' : 'Fail'}`)
+);
+test();