Multiple exercises were added to the TypeScript track in this commit.

typescript/collatz-conjecture/collatz-conjecture.ts

@@ -0,0 +1,14 @@
+function step(count: number, interation: number): number {
+  if (count === 1) return interation
+  if (count % 2 === 0) { // Even
+    return step(count / 2, interation + 1)
+  } else {
+    return step((3 * count) + 1, interation + 1)
+  }
+}
+
+export function steps(count: number): number {
+  if (!count || count < 1 || Math.trunc(count) !== count)
+    throw new Error('Only positive integers are allowed')
+  return step(count, 0)
+}