Update daysFromNow.md

snippets/daysFromNow.md

@@ -1,20 +1,21 @@
 ---
-title: daysFromNow.md
+title: daysFromNow
 tags: date,beginner
 ---
 
 Returns the date of `n` days from today as a string representation.
 
-- Use `new Date()` and `Date.prototype.getDate()` to get the current time stamp add the number of milliseconds and use it to create a new `Date` object.
+- Use `new Date()` to get the current date, `Math.abs()` and `Date.getDate()` to update the date accordingly and set to the result using `Date.setDate()`.
 - Use `Date.prototype.toISOString()` to return a string in `yyyy-mm-dd` format.
 
 ```js
-const daysFromNow = n =>{
-  let date = new Date(new Date().getTime() + n * 24 * 60 * 60 * 1000);
-  return date.toISOString().split('T')[0];
+const daysFromNow = n => {
+  let d = new Date();
+  d.setDate(d.getDate() + Math.abs(n));
+  return d.toISOString().split('T')[0];
 }
 ```
 
 ```js
-daysFromNow('5'); // 2020-10-13
+daysFromNow(5); // 2020-10-13 (if current date is 2020-10-08)
 ```