Ruby If Then Shorthand

Def foo a o b bar.

Ruby if then shorthand. One equals sign in ruby means assignment make sure to use when you want to find out if two things are the same. 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. Thus thus case expr0 when expr1 expr2 stmt1 when expr3 expr4 stmt2 else stmt3 end. Or if you have a list of user objects.

It s like the no parentheses super shorthand but for any method. If today christmaseve puts santa s on his way else puts snow end shorthand. The main use for map is to transform data. A when statement s expression is separated from code by the reserved word then a newline or a semicolon.

Puts santa s on his way. Def foo bar. 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. Today christmaseve.

Hi in message re. If you don t this right you won t get the expected results. Jun 2 nd. But when you want to check for the opposite not true false.

This code is functionally equivalent and perhaps a bit easier to understand. 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. If rubyists must be told they have to change their forwarding code. What about using this.

Unpacking ampersand to proc. Map is a ruby method that you can use with arrays hashes ranges. Foo a o b. Puts santa s on his way if today christmaseve if else.

Puts snow do you use these ruby shorthands. You could convert them into a list of their corresponding email addresses phone number or any other attribute defined on the user class. With an if statement you can check if something is true. 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.

It makes it easier to write correct forwarding code. 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.