Renamed to remove superfluous s in filename

util.js

@@ -1,3 +1,5 @@
+// General helper functions
+
 export const cancelablePromise = promise => {
   let isCanceled = false
 
@@ -13,13 +15,12 @@ export const cancelablePromise = promise => {
     cancel: () => (isCanceled = true),
   }
 }
+
 export const noop = () => {}
 
-export const delay = n => new Promise(resolve => setTimeout(resolve, n))
+export const delay = (n = 550) => new Promise(resolve => setTimeout(resolve, n))
 
-export const isObject = obj => {
+export const isObject = obj => Object.prototype.toString.call(obj) === '[object Object]'
-  return Object.prototype.toString.call(obj) === '[object Object]'
-}
 
 export const convertToDuration = (milliseconds: number) => {
   const stringifyTime = (time: number): string => String(time).padStart(2, '0')
@@ -42,3 +43,15 @@ export const convertToTimeWorked = (milliseconds: number) => {
     return `${minutes % 60}m`
   }
 }
+
+ // Returns a random int between min and max (inclusive)
+export function randomInt(min, max) {
+    min = Math.ceil(min);
+    max = Math.floor(max);
+    return Math.floor(Math.random() * (max - min + 1)) + min;
+}
+
+// Returns a random item from the given array
+export function selectRandom(arrayToChooseFrom) {
+  return arrayToChooseFrom[randomInt(0, arrayToChooseFrom.length - 1)]
+}