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Ruby Build a Todo List Application with Rails 4 Build a Todo List Application with Rails 4 Editing Todo Lists

Posted by Manas sricharan VARRI
Manas sricharan VARRI
8,242 Points

use of let!() function

In the video editing Todo Lists the code was like let!(:todo_list) {TodoList.create(title: "Groceries",description: "Grocery list.")}, y not use todo_list = TodoList.create(title: "Groceries",description: "Grocery list."),this is also considered to be declaraded globally. plss brief the purpose of let!(). Thanks in advance.

Unsubscribed User
Unsubscribed User
11,042 Points

Please use some plain english instead of writing "y" and "plss" the next time you ask for help on the internet...

2 Answers

David Chapman
David Chapman
22,023 Points

Hi Manas!

Let me point you to three articles that helped me understand this concept.

  1. The Rspec documentation on let vs. let!
  2. This Stack Overflow discussion
  3. This is probably my favorite for its conciseness
Manas sricharan VARRI
Manas sricharan VARRI
8,242 Points

Thanku very much. you helped me a lot.

David Chapman
David Chapman
22,023 Points
David Chapman
David Chapman
22,023 Points

Glad that helped!

Manas sricharan VARRI
Manas sricharan VARRI
8,242 Points

can u please suggest any documentations or references (books)for clear understanding of rails.