Ruby Return Value Function

Let s implement the javascript example presented earlier to its ruby version.

Ruby return value function.

The last expression that is evaluated is automatically returned by the method. The abs function in ruby returns the absolute value of the integer. The returned object can be anything but a method can only return one thing and it also always returns something. Enu max n a b block.

Other languages sometimes refer to this as a function a method may be defined as a part of a class or separately. Def add integer 2 anotherinteger integer anotherinteger 3. 3 02 here are our add and subtract methods from before. With methods one can organize their code into subroutines that can be easily invoked from other areas of their program.

2 56 let s take a look at return values in another context though. The object returned could be the object nil meaning nothing but it still is an object. Function as return value in ruby. Def say hello name hello name end.

The function returns the absolute value of the integer. This would return the same value as the prior functions. In ruby a method always return exactly one single thing an object. You can simplify the function further.

This returned value will be the value of the last statement. Def say hello name return hello name end. A method in ruby is a set of expressions that returns a value. To call a function.

It returns the absolute value of a numbers. The abs is an inbuilt method in ruby returns the absolute value of a number. The function needs the number whose absolute value is to be returned. And how can we have a function being returned as a return value of another function in ruby.

For example def test i 100 j 10 k 0 end this method when called will return the last declared variable k. The return statement in ruby is used to return one or more values from a ruby method. 2 53 here the return value from gets is getting assigned to the variable answer. The function takes two optional parameters n and block.

Every method in ruby returns a value by default. The max of enumerable is an inbuilt method in ruby returns the maximum elements or an array containing the maximum n elements in the enumerable. Every method always returns exactly one object.