• A Symbol looks like a variable name but it's prefixed with a colon.

   Examples - :action
  

• Alternatively, you can consider the colon to mean "thing named" so :id is "the thing named id." You can also think of :id as meaning the name of the variable id, and plain id as meaning the value of the variable.

A Symbol is the most basic Ruby object you can create. It's just a name. Symbols are useful because a given symbol name refers to the same object throughout a Ruby program. Symbols are...

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• Tags: Ruby basics|

Hello, ruby beginners. Hope you have read ruby basics. let's revise few things.

1)Arithmatics

5/2=2

2/4=0

5/2.0=2.5

"Kiprosh"+123 #<TypeError: can't convert Fixnum into String as 123 is Fixnum and "Kiprosh" is a string. "Kiprosh"+123.to_s = Kiprosh123

2)Hash:

a)

consider the following hash: h={"abcd"="pqrs","abc"="xyz" }

How to access.?

h["abcd"] will return "pqrs"

similarly h["abc"] will return xyz

we can store keys in variables and can access the values like following

x="abcd" then...

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• Tags: Ruby basics| hash|