I’ve compiled a guide on generating options tags using options_for_select.
Environment
- Ruby 2.2.3
- Rails 4.2.5
Category Archives: Code
(日本語) Rails: クラス名が ActiveRecord::AttributeMethods 内のモジュールと同じ場合
CoffeeScript: How to write For Loop
How to write for loop in CoffeeScript.
for loop of array
In Ruby, it is written as items.each.
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arr = ['a', 'b', 'c'] for item in arr alert item |
for loop of array with index
In Ruby, it is written as items.each_with_index.
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arr = ['a', 'b', 'c'] for item, index in arr alert index alert item |
Rails: Realize nl2br in PHP
Here’s the code to realise nl2br of PHP in Rails.
Environment
(Unless Rails changes considerably), it can be used in most versions.
- Rails 4.2.5
- Ruby 2.0.0