Rails - Local Variables versus Instance Variables

Question

while learning Rails, I keep hearing Local vs Instance but I can't find a definition of the two & the differences. And I'd like to avoid making assumptions.

What are the two and how are they different?

Thanks

Anubhaw · Accepted Answer · 2010-09-21 05:24:27Z

36

The main difference between local and instance variable is that local variable is only available in controller, where as instance variable is available in corresponding views also. The controller and views do not share local variables.

Thanks, Anubhaw

answered Sep 21, 2010 at 5:24

Anubhaw

6,0781 gold badge31 silver badges39 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Anubhaw Over a year ago

Example, @name = "Ruby_rails" is an instance variable and name = "Ruby_rails" is an local variable. Thanks......

hangsu Over a year ago

In case this helps anyone: It is possible to set local variables for your templates through the controller this way: render :index, :locals => { :stuff => @stuff }

Hitesh · Accepted Answer · 2011-05-05 05:01:37Z

6

The main differences between local and instance variables are as follows

local variable has its scope restriction i.e not available to another methods where as instance available to another
local and instance variable is also available in view
instance variable is separate for each object

answered May 5, 2011 at 5:01

Hitesh

8251 gold badge6 silver badges11 bronze badges

Collectives™ on Stack Overflow

Rails - Local Variables versus Instance Variables

2 Answers 2

2 Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related