You could convert them into a list of their corresponding email addresses phone number or any other attribute defined on the user class.
Ruby if then shorthand.
The main use for map is to transform data.
Until then keep sniffin out those code smells my friends.
Unpacking ampersand to proc.
Hi in message re.
A when statement s expression is separated from code by the reserved word then a newline or a semicolon.
I used def foo because that s currently valid ruby code but i m fine with any syntax.
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.
What about using this.
If you don t this right you won t get the expected results.
Def foo bar.
Foo a o b.
Puts santa s on his way if today christmaseve if else.
Puts santa s on his way.
But when you want to check for the opposite not true false.
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.
Code smells and ruby shorthand.
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.
Or if you have a list of user objects.
Today christmaseve.
Puts snow do you use these ruby shorthands.
Jun 2 nd.
One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same.
Def foo a o b bar.
If today christmaseve puts santa s on his way else puts snow end shorthand.
If rubyists must be told they have to change their forwarding code.
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.
Thus thus case expr0 when expr1 expr2 stmt1 when expr3 expr4 stmt2 else stmt3 end.
Map is a ruby method that you can use with arrays hashes ranges.
Notice that we use two equal symbols to mean equality.
Given an array of strings you could go over every string make every character uppercase.
This code is functionally equivalent and perhaps a bit easier to understand.
