Update LESSONPLAN.md

Tjebbee · web-flow · commit 4af79f873bf1 · 2019-12-02T15:40:20.000+01:00
diff --git a/Week2/LESSONPLAN.md b/Week2/LESSONPLAN.md
@@ -170,3 +170,5 @@ console.log(evens); // [2, 4]
 
 ### Essence
 
+Easy methodes to transform arrays, wich you'll have to do quite often, while keeping the original array intact.
+You can see it as a shortcut. Of course you can write these methodes yourself many times, but 'they' already did it for you 

Original file line number	Diff line number	Diff line change
`@@ -170,3 +170,5 @@ console.log(evens); // [2, 4]`
`170`	`170`
`171`	`171`	`### Essence`
`172`	`172`
	`173`	`+Easy methodes to transform arrays, wich you'll have to do quite often, while keeping the original array intact.`
	`174`	`+You can see it as a shortcut. Of course you can write these methodes yourself many times, but 'they' already did it for you`