When I try to shorten an array with '' the output from all other variables is changing too
message = "bot.start"
seperator = message
command = seperator
command[0..3] = ''
message #=> "start"
The output should be "bot.start". Ruby should have a problem separating variables from each other. What is wrong?
In the current version Ruby, strings are mutable. That is, you can change an instance of a string.
In your example, message, command and separator are all different variables that point to the same string instance. When you do [0..3] = '', you are changing the string that all the variables point to.
If you need to make distinct instances, use dup to copy the string:
command = seperator.dup
Alternatively, don't modify the string and use APIs that return a new instance of a string:
command = seperator[4..-1]
When you execute line 4
command[0..3] = ''
You grabed bot. and changed to bot. => ''
That's why it returns''start which is start
=means that you're referring to the same object. If that's the case,command = seperatormakescommandliterally the same object asseperator. You'll likely need to make a copy ofseperatorbefore assigning if you want them to act separately."bot.start"?messageis a string, not an array.