mytharcher · September 17, 2019 07:40 · Sep 17, 2019
diff --git a/generateCombinationsFromLists.js b/generateCombinationsFromLists.js
@@ -0,0 +1,22 @@
+const lists = [
+	[1, 2],
+	[3, 4],
+	[5],
+	[7]
+];
+
+const combinations = lists
+	.reduce((all, current) => current
+		.map(item => all.map(g => g.concat([item])))
+		.reduce((prev, curr) => prev.concat(curr), [])
+	, [[]]);
+
+console.log(combinations);
+/*
+[
+	[ 1, 3, 5, 7 ],
+	[ 2, 3, 5, 7 ],
+	[ 1, 4, 5, 7 ],
+	[ 2, 4, 5, 7 ]
+]
+*/