Ruby If Then Else Inline

Num 10 num 1 if num 0 puts num 11.

Ruby if then else inline.

Remember using unless in ruby is just the reverse of using if. A traditional if else construct in ruby is written. Notice ruby uses elsif not else if nor elif. This could also be written as.

An if expression s conditional is separated from code by the reserved word then a newline or a semicolon. The built in if then else syntax is inline. You can also say if this is not true then do this other thing. Ruby provides a neat inline form for if else statements when the logic in your script is simple.

You re saying if this is not true then do this. If var 10 print variable is 10 elsif var 20 print variable is 20 else print variable is something else end. Num 10 if num 0 num 1 end puts num 11 when to use if. These can be rewritten as the following statement.

The expression if predicate then expr1 else expr2. If stock 1 puts sorry we are out of stock else puts thanks for your order end. Ternary syntax is the same in ruby as most languages. If the conditional is not true code specified in the else clause is executed.

Note that else if is actually spelled elsif without the e. Ternary shortened if statement syntax. Has type bool a a a. The values false and nil are false and everything else are true.

Executes code if the conditional is true.