javascript

 1. membuat delay foreach

https://stackoverflow.com/questions/45498873/add-a-delay-after-executing-each-iteration-with-foreach-loop

2. menambahkan object array 

https://widiyanata.com/blog/program-javascript-untuk-menambahkan-objek-ke-array/

3. remove object aray

https://stackoverflow.com/questions/10024866/remove-object-from-array-using-javascript

4. find array

https://appdividend.com/2022/06/04/javascript-array-find/#:~:text=Finding%20the%20object%20in%20the,it%2C%20it%20returns%20the%20object.

5. update object  array 

https://www.delftstack.com/howto/javascript/javascript-update-object-in-array/

6. format yyy-mm-dd

https://stackoverflow.com/questions/23593052/format-javascript-date-as-yyyy-mm-dd