Ruby If Then Else Inline

Notice ruby uses elsif not else if nor elif.

Ruby if then else inline. Remember using unless in ruby is just the reverse of using if. If the conditional is not true code specified in the else clause is executed. Ternary syntax is the same in ruby as most languages. The expression if predicate then expr1 else expr2.

The if else statement. The built in if then else syntax is inline. Ternary shortened if statement syntax. Num 10 if num 0 num 1 end puts num 11 when to use if.

Executes code if the conditional is true. If stock 1 puts sorry we are out of stock else puts thanks for your order end. Note that else if is actually spelled elsif without the e. Ruby provides a neat inline form for if else statements when the logic in your script is simple.

A traditional if else construct in ruby is written. The values false and nil are false and everything else are true. These can be rewritten as the following statement. If var 10 print variable is 10 elsif var 20 print variable is 20 else print variable is something else end.

Has type bool a a a. This could also be written as. If a b result x else result y end. You re saying if this is not true then do this.

Result if a b x else y end.