Ruby Return Value Function

Function as return value in ruby.

Ruby return value function. This returned value will be the value of the last statement. The abs function in ruby returns the absolute value of the integer. It returns the absolute value of a numbers. A method in ruby is a set of expressions that returns a value.

With methods one can organize their code into subroutines that can be easily invoked from other areas of their program. The function takes two optional parameters n and block. For example def test i 100 j 10 k 0 end this method when called will return the last declared variable k. The function returns the absolute value of the integer.

To call a function. Def say hello name hello name end. Def add integer 2 anotherinteger integer anotherinteger 3. 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.

2 53 here the return value from gets is getting assigned to the variable answer. Let s implement the javascript example presented earlier to its ruby version. The return statement in ruby is used to return one or more values from a ruby method. The function takes the integer whose absolute value is to be returned.

When no block is given it assumes all elements to be self comparable but when the block is given then it is compared using. The object returned could be the object nil meaning nothing but it still is an object. Def say hello name return hello name end. And how can we have a function being returned as a return value of another function in ruby.

You can simplify the function further. The abs is an inbuilt method in ruby returns the absolute value of a number. 2 56 let s take a look at return values in another context though. Other languages sometimes refer to this as a function a method may be defined as a part of a class or separately.

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. 3 02 here are our add and subtract methods from before. This would return the same value as the prior functions.

The last expression that is evaluated is automatically returned by the method. The function needs the number whose absolute value is to be returned. Every method always returns exactly one object.