Defining a method []=

[Brett Kushner]

I have used a method of [] with "def method[](string)". But I can't
figure out how to use[]=.

An array works with []= such as array['string1'] = 'string2' so how
would I write a method like that for my own class?

 

[Hal Fulton]

I have used a method of [] with "def method[](string)". But I can't
figure out how to use[]=.

An array works with []= such as array['string1'] = 'string2' so how
would I write a method like that for my own class?

Much the same way -- it will have two parameters.

class MyClass
def []=(index,assigned)
# ...whatever...
end
end


Make sense?


Hal

 

[John Johnson]

I have used a method of [] with "def method[](string)". But I can't
figure out how to use[]=.

An array works with []= such as array['string1'] = 'string2' so how
would I write a method like that for my own class?

def method[]=(index, value)
...
end

Regards,
JJ

 

[Scott Baldwin]

I have used a method of [] with "def method[](string)". But I can't
figure out how to use[]=.

An array works with []= such as array['string1'] = 'string2' so how
would I write a method like that for my own class?

You define a method called "[]=".

class Foo
def []= key, value
puts "Setting key '#{key}' to '#{value}'"
end
end

f = Foo.new
f[:hello] = "world"

# Setting key 'hello' to 'world'