add daysBetween

snippets/daysBetween.md

@@ -0,0 +1,18 @@
+---
+title: daysBetween.md
+tags: date,begineer
+---
+
+Returns the number of days between two `Date` objects.
+
+- Subtract the two `Date` objects and find the absolute value using `Math.abs()` 
+- Divide by the number of milliseconds in a day
+
+```js
+const daysBetween = (date1, date2) =>
+  Math.abs(date1 - date2) / (1000 * 60 * 60 * 24)
+```
+
+```js
+daysBetween(new Date("11-1-2020"), new Date("11-3-2020")); // 2
+```