1 files changed, 5 insertions, 0 deletions
diff --git a/src/Utils.ts b/src/Utils.ts
index 44f1d55c2..23ae38bdb 100644
--- a/src/Utils.ts
+++ b/src/Utils.ts
@@ -211,6 +211,11 @@ export type Without<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
 
 export type Predicate<K, V> = (entry: [K, V]) => boolean;
 
+/**
+ * creates a list of numbers ordered from 0 to 'num'
+ * @param num range of numbers
+ * @returns list of values from 0 to num -1
+ */
 export function numberRange(num: number) {
     return num > 0 && num < 1000 ? Array.from(Array(num)).map((v, i) => i) : [];
 }