How to delete a range of values from an array?

Question

If array = [1, 2, 3, 4, 5, 6, 7, 8, 9], I want to delete a range of elements from array.

For example: I want to delete all elements with an index in th

Answer 1

You can try this

[1, 2, 3, 4, 5, 6, 7, 8, 9].reject.with_index{|element,index| index >= 2 && index <= 5}
=> [1, 2, 7, 8, 9]

or use delete_if

[1, 2, 3, 4, 5, 6, 7, 8, 9].delete_if.with_index{|element,index| index >= 2 && index <= 5}
=> [1, 2, 7, 8, 9]