Quick quesiton abt an array of characters

ruby-talk
1

This seems like it'd be obvious but haven't had any luck with it..

Let's say I want to build an array of characters in order, i.e.

characters = ['a','b','c','d',..]

If they were numbers I could do this:

r = []
(0..9).each { |x| r << x}

but how to do for characters?

Thanks

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2

brez! !! wrote:

This seems like it'd be obvious but haven't had any luck with it..

Let's say I want to build an array of characters in order, i.e.

characters = ['a','b','c','d',..]

If they were numbers I could do this:

r =
(0..9).each { |x| r << x}

but how to do for characters?

Thanks

Same...

irb(main):001:0> ('a'..'z').to_a
=> ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]

HTH
-Justin

3

brez! !! wrote:

This seems like it'd be obvious but haven't had any luck with it..

Let's say I want to build an array of characters in order, i.e.

characters = ['a','b','c','d',..]

If they were numbers I could do this:

r =
(0..9).each { |x| r << x}

but how to do for characters?

Thanks

irb(main):006:0> r =
=>
irb(main):007:0> ('a'..'z').each {|d| r << d}
=> "a".."z"
irb(main):008:0> r
=> ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]

or

irb(main):009:0> r =
=>
irb(main):010:0> c = 'a'
=> "a"
irb(main):011:0> 26.times { r << c; c = c.succ}
=> 26
irb(main):012:0> r
=> ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]