diff --git a/js-programming/bytebeat-render.js b/js-programming/bytebeat-render.js
index 4cfdc39..f810c73 100644
--- a/js-programming/bytebeat-render.js
+++ b/js-programming/bytebeat-render.js
@@ -42,28 +42,28 @@ const TYPE_FLOATBEAT = 2
 const SELECTED_TYPE = TYPE_BYTEBEAT // feel free to change this
 
 // for bytebeat
-const int = x => Math.floor(x)
-const abs = Math.abs
-const acos = Math.acos
-const acosh = Math.acosh
-const asin = Math.asin
-const asinh = Math.asinh
-const atan = Math.atan
-const atanh = Math.atanh
-const cbrt = Math.cbrt
-const cos = Math.cos
-const cosh = Math.cosh
-const floor = Math.floor
-const log = Math.log
-const log2 = Math.log2
-const PI = Math.PI
-const pow = Math.pow
-const random = Math.random
-const sin = Math.sin
-const sinh = Math.sinh
-const sqrt = Math.sqrt
-const tan = Math.tan
-const tanh = Math.tanh
+var int = x => Math.floor(x)
+var abs = Math.abs
+var acos = Math.acos
+var acosh = Math.acosh
+var asin = Math.asin
+var asinh = Math.asinh
+var atan = Math.atan
+var atanh = Math.atanh
+var cbrt = Math.cbrt
+var cos = Math.cos
+var cosh = Math.cosh
+var floor = Math.floor
+var log = Math.log
+var log2 = Math.log2
+var PI = Math.PI
+var pow = Math.pow
+var random = Math.random
+var sin = Math.sin
+var sinh = Math.sinh
+var sqrt = Math.sqrt
+var tan = Math.tan
+var tanh = Math.tanh
 
 const generateAudio = t => {
 	return t&t>>8