How to insert elements into an array
arrays, ruby
Solution
Is this what you want ?
myary = [100, "hello", 20, 40, "hi"]
myary.flat_map { |i| [i, 10] }
# => [100, 10, "hello", 10, 20, 10, 40, 10, "hi", 10]
myary.flat_map { |i| i == 'hello' ? [10, i] : i }
# => [100, 10,"hello", 20, 40, "hi"]
Read `#flat_map` method.
Problem
I have an array consisting of unknown elements: ``` myary = [100, "hello", 20, 40, "hi"] ``` I want to put integer `10` after each element to make it into this: ``` myary = [100, 10, "hello", 10, 20, 10, 40, 10, "hi", 10] ``` Is there a way or a method to do it? Another problem is that I need to add integer `10` before a string `"hello"`. ``` myary = [100, 10,"hello", 20, 40, "hi"] ```