is there any way to create variables in Ruby with dynamic names?
I'm reading a file and when I find a string, generates a hash.
e.g.
file = File.new("games.log", "r")
file.lines do |l|
l.split do |p|
if p[1] == "InitGame"
Game_# = Hash.new
end
end
end
How could I change # in Game_# to numbers (Game_1, Game_2, ...)
You can do it with instance variables like
i = 0
file.lines do |l|
l.split do |p|
if p[1] == "InitGame"
instance_variable_set("@Game_#{i += 1}", Hash.new)
end
end
end
but you should use an array as viraptor says. Since you seem to have just a new hash as the value, it can be simply
i = 0
file.lines do |l|
l.split do |p|
if p[1] == "InitGame"
i += 1
end
end
end
Games = Array.new(i){{}}
Games[0] # => {}
Games[1] # => {}
...
Why use separate variables? It seems like you just want Game to be a list with the values appended to it every time. Then you can reference them with Game[0], Game[1], ...
If you really want dynamic variable names, may be you can use a Hash, than your can set the key dynamic
file = File.new("games.log", "r")
lines = {}
i = 0
file.lines do |l|
l.split do |p|
if p[1] == "InitGame"
lines[:"Game_#{i}"] = Hash.new
i = i + 1
end
end
end
Game_togame_.sends. Looks like an array to me.