How do I compare "string1" with ["string1"]? The following results in false:
params[:abc] # => "neon green"
@abc # => ["neon green"]
params[:abc] == @abc # => false
5 Answers
You could use Array#include?. However, this will return true if the array contains "string1" and "string2".
["string1"].include?("string1") # => true
["string1", "string2"].include?("string1") # => true
In the event you want to compare the array contains only the string, I'd recommend using the Array method, which converts the parameters provided to it into an array.
Array(["string1"]) == Array("string1") # => true
Array(["string1", "string2"]) == Array("string1") # => false
How it works:
Array(["string1"]) # => ["string1"]
Array("string1") # => ["string1"]
Array(nil) # => []
Comments
Another option - put the string inside an array of itself:
[params[:abc]] == @abc # => true
Or, if you don't know which one is an array, use an array-splat ([*]) combination:
[*params[:abc]] == [*@abc] # => true
Array-splat will work in a similar fashion to @Jkarayusuf's Array():
[*["string1"]] # => ["string1"]
[*"string1"] # => ["string1"]
[*nil] # => []
Comments
you can wrap the second one in an array, or extract the string from the array
[params[:abc]] == @abc
or
params[:abc] == @abc.first
I kinda like the first one more
3 Comments
user2511030
yea looks more elegant and neat. Thanks Mohammad!
user2511030
No mohammad. this is not working. [@abc] => [["neon green"]] [5] pry(#<AbcController>)> params[:abc].first => "n"
Mohammad AbuShady
ah ok, i swapped the types, well you get the idea.
I'd do:
@abc = @abc.join('')
#=> "neon green"
if params[:abc] == @abc
do thing 1
else
do thing 2
end
Comments
Try this
params[:abc].in? @abc
1 Comment
Uri Agassi
in? is a rails method, not a core-ruby method
==. What is wrong with it?