ruby,local-variables , Get value from string representing local variable [duplicate]

## Question:

Tag: ruby,local-variables

I have a local variable name as a string, and need to get its value.

variable = 22
"variable".to_variable?


How can I get the value 22 form the string?

You can use eval.

variable = 22
eval("variable")
# => 22


However eval can be nasty. If you dont mind declaring an instance variable, you can do something like this too:

@variable = 22
str = "variable"
instance_variable_get("@#{str}")
# => 22


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