diff --git a/src/utils/common.ts b/src/utils/common.ts
index a2ec4754..00920c56 100644
--- a/src/utils/common.ts
+++ b/src/utils/common.ts
@@ -1,20 +1,3 @@
-/**
- * Generates list of numbers
- * @param  {Number} start starting value
- * @param  {Number} num   amount of numbers in list
- * @param  {Number} step  difference value
- * @return {Array}        list of numbers
- */
-export function range(start, num, step) {
-    var list = [];
-    var val = start;
-    for (var i = 0; i < num; i++) {
-        list.push(val);
-        val += step;
-    }
-    return list;
-}
-
 /**
  * Return a closure that compares a Number argument with specified Number
  * @param withNumber Number to compare with
diff --git a/src/utils/date.js b/src/utils/date.ts
similarity index 72%
rename from src/utils/date.js
rename to src/utils/date.ts
index 9bdac8af..d9999bf6 100644
--- a/src/utils/date.js
+++ b/src/utils/date.ts
@@ -1,16 +1,11 @@
-import {range} from './common';
+import { range } from 'lodash'
 
-/**
- *
- * @param start
- * @returns {*}
- */
-export function getDates(start) {
+export function getDates(start: Date) {
     const oneDay = (1000 * 60 * 60 * 24);
     const startTime = start.getTime();
     const startDay = start.getDay();
 
-    return range(0, 6, 1)
+    return range(0, 6)
         .reduce((dates, weekDay) => {
             let delta = 1 + weekDay - startDay;
             let time = startTime + (oneDay * delta);
@@ -18,4 +13,4 @@ export function getDates(start) {
             return dates.concat([new Date(time)]);
         }, [])
         .map(i => i.getDate());
-}
\ No newline at end of file
+}