I will explain in detail about each variable Ruby global variable are used globally in whole application. Ruby global variable are denoted by $ sign $global_variable ...

Local Variables in Instance Methods Let's say we have a class called Dog that is responsible for producing individual dog objects. We want each dog instance to be able to have a name and to show its ...

Ever wondered why some Ruby variables interpolate in strings without #{} and others don’t? It's a subtle detail that can trip up even experienced devs but once you understand how Ruby handles local, ...

การประกาศตัวแปรใน ภาษา Ruby นั้น ชื่อของตัวแปรจะต้องประกอบไปด้วย ตัวอักษร ตัวเลขและ ...

With hard-to-reproduce bugs, it can be really handy to log all of the local and instance variables along with the exception. This post shows you how. Along the way we'll introduce Ruby's binding ...