.

out.js

@@ -768,6 +768,18 @@ load = function load() {
 			},
 			configurable: true
 		},
+		prod: {
+			value: function(val = 1) {
+				return this.reduce((a, b) => a * b, val)
+			},
+			configurable: true
+		},
+		cartProduct: {
+			value: function(that) {
+				return this.flatMap((e) => that.map((f) => [e, f]))
+			},
+			configurable: true
+		},
 		flatDeep: {
 			value: function() {
 				return this.flat(Infinity)
@@ -1029,6 +1041,7 @@ load = function load() {
 
 load()
 utils = {
+	log: (e, copy = false) => (console.log(copy ? e.copyDeep() : e), e),
 	fetch: (url) => fetch(url).then(e => e.text()),
 	fetchEval: (url) => utils.fetch(url).then(e => eval(e)),
 	signAgnosticInclusiveRange: (a, b, s = Math.sign(a - b)) => Array((a - b) * s + 1).fill().map((_, i) => a - i * s),