How can I delete one element from an array by value

Question

I have an array of elements in Ruby

[2,4,6,3,8]

I need to remove elements with value 3 for example

How do I do that?<

Answer 1

If you also want to make this deletion operation chainable, so you can delete some item and keep on chaining operations on the resulting array, use tap:

[2, 4, 6, 3, 8].tap { |ary| ary.delete(3) }.count #=> 4

Answer 2

I think I've figured it out:

a = [3, 2, 4, 6, 3, 8]
a.delete(3)
#=> 3
a
#=> [2, 4, 6, 8]

Answer 3

I like the -=[4] way mentioned in other answers to delete the elements whose value are 4.

But there is this way:

irb(main):419:0> [2,4,6,3,8,6].delete_if{|i|i==6}
=> [2, 4, 3, 8]
irb(main):420:0>

mentioned somewhere in "Basic Array Operations", after it mentions the map function.