Today christmaseve.
Ruby if then shorthand.
A when statement s expression is separated from code by the reserved word then a newline or a semicolon.
Thus thus case expr0 when expr1 expr2 stmt1 when expr3 expr4 stmt2 else stmt3 end.
Or if you have a list of user objects.
Unpacking ampersand to proc.
Hi in message re.
Puts santa s on his way.
Map is a ruby method that you can use with arrays hashes ranges.
With an if statement you can check if something is true.
If you don t this right you won t get the expected results.
Jun 2 nd.
You could convert them into a list of their corresponding email addresses phone number or any other attribute defined on the user class.
Puts santa s on his way if today christmaseve if else.
Notice that we use two equal symbols to mean equality.
Assuming there s no technical limitation or ambiguities i suggest that the shorthand syntax for symbol s in the context of an array be applied to strings also.
One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same.
It makes it easier to write correct forwarding code.
Puts snow do you use these ruby shorthands.
Given an array of strings you could go over every string make every character uppercase.
The ampersand can be used with an iterator like map and will call to proc on whatever symbol you pass it unless you pass it a block explicitly.
It s like the no parentheses super shorthand but for any method.
If rubyists must be told they have to change their forwarding code.
Def foo a o b bar.
If today christmaseve puts santa s on his way else puts snow end shorthand.
I often use group by x x and find x x the latter is to find the first item in an array which is true.
But when you want to check for the opposite not true false.
What about using this.
Until then keep sniffin out those code smells my friends.
Def foo bar.
If i is greater than 10 the if statement itself will evaluate to the string greater than or will evaluate to the string less than or equal to this is the same thing that the ternary operator is doing only the ternary operator is more compact.
The main use for map is to transform data.
This code is functionally equivalent and perhaps a bit easier to understand.
