diff --git a/utils/arrayUtils.js b/utils/arrayUtils.js
index a466a0b7..9c7dc121 100644
--- a/utils/arrayUtils.js
+++ b/utils/arrayUtils.js
@@ -65,33 +65,33 @@ function unique(array) {
 
 // deep copy for Arrays (and other objects)
 function deepCopy(obj) {
-  const id = x=>x;
+  const id = x => x;
   const dcTArray = a => a.map(id);
-  const dcObject = x => Object.fromEntries(Object.entries(x).map(([k,d])=>[k,dcAny(d)]));
-  const dcAny = x => x instanceof Object ? (cf.get(x.constructor)||id)(x) : x;
+  const dcObject = x => Object.fromEntries(Object.entries(x).map(([k, d]) => [k, dcAny(d)]));
+  const dcAny = x => (x instanceof Object ? (cf.get(x.constructor) || id)(x) : x);
   // don't map keys, probably this is what we would expect
-  const dcMapCore = m => [...m.entries()].map(([k,v])=>[k, dcAny(v)]);
+  const dcMapCore = m => [...m.entries()].map(([k, v]) => [k, dcAny(v)]);
 
   const cf = new Map([
-      [Int8Array, dcTArray],
-      [Uint8Array, dcTArray],
-      [Uint8ClampedArray, dcTArray],
-      [Int16Array, dcTArray],
-      [Uint16Array, dcTArray],
-      [Int32Array, dcTArray],
-      [Uint32Array, dcTArray],
-      [Float32Array, dcTArray],
-      [Float64Array, dcTArray],
-      [BigInt64Array, dcTArray],
-      [BigUint64Array, dcTArray],
-      [Map, m => new Map(dcMapCore(m))],
-      [WeakMap, m => new WeakMap(dcMapCore(m))],
-      [Array, a => a.map(dcAny)],
-      [Set, s => [...s.values()].map(dcAny)],
-      [Date, d => new Date(d.getTime())],
-      [Object, dcObject],
-      // other types will be referenced
-      // ... extend here to implement their custom deep copy
+    [Int8Array, dcTArray],
+    [Uint8Array, dcTArray],
+    [Uint8ClampedArray, dcTArray],
+    [Int16Array, dcTArray],
+    [Uint16Array, dcTArray],
+    [Int32Array, dcTArray],
+    [Uint32Array, dcTArray],
+    [Float32Array, dcTArray],
+    [Float64Array, dcTArray],
+    [BigInt64Array, dcTArray],
+    [BigUint64Array, dcTArray],
+    [Map, m => new Map(dcMapCore(m))],
+    [WeakMap, m => new WeakMap(dcMapCore(m))],
+    [Array, a => a.map(dcAny)],
+    [Set, s => [...s.values()].map(dcAny)],
+    [Date, d => new Date(d.getTime())],
+    [Object, dcObject]
+    // other types will be referenced
+    // ... extend here to implement their custom deep copy
   ]);
 
   return dcAny(obj);