extend basic math function to multi params

desktop/sources/scripts/library.js

@@ -94,18 +94,18 @@ function Library (ronin) {
 
   // Math
 
-  this.add = function (a, b) {
+  this.add = function (...args) {
-    return a + b
+    return args.reduce((sum, val) => sum + val)
   }
 
-  this.sub = function (a, b) {
+  this.sub = function (...args) {
-    return a - b
+    return args.reduce((sum, val) => sum - val)
   }
 
-  this.mul = function (a, b) {
+  this.mul = function (...args) {
-    return a * b
+    return args.reduce((sum, val) => sum * val)
   }
-  this.div = function (a, b) {
+  this.div = function (...args) {
-    return a / b
+    return args.reduce((sum, val) => sum / val)
   }
 }

examples/math.lisp

@@ -0,0 +1,5 @@
+(
+    (echo (add 2 3))
+    (echo (sub 22 3 4 5))
+    (echo (mul 2 3 4 5))
+)