Ruby Return Value Of Assignment

Also called associative arrays they are similar to arrays but where an array uses integers as its index a hash allows you to use any object type.

Ruby return value of assignment.

Def add two number number 2 end p add two 3 the last evaluated statement is the expression number 2. Ternary operator logic uses condition. Here is the syntax. False return value statements to shorten your if else structures.

That about covers methods. It first evaluates an expression for a true or false value and then execute one of the two given statements depending upon the result of the evaluation. Result test 5 10 display the result. A trailing comma is ignored.

Since in our example number is assigned 3 this expression returns the number 5 and that is why the value returned by our method also is 5. In this case the return value for a object id is. The value of just assignment 2 is going to be 5 because the assignment expression evaluates to 5 therefore that s what s returned. For more detail on ruby arrays go through ruby arrays.

You are getting wiser and more confident with ruby. Since almost everything is an object in ruby we can run the standard object id method on the variable to see its memory address. Hashes enumerate their values in the order that the corresponding keys were inserted. I see from the example that the conditional assignment operator can change an empty variable in ruby to a specific value say if a method where expressed within a block code.

Ruby program that uses implicit return value def test x y this expression is evaluated and returned. A literal ruby hash is created by placing a list of key value pairs between braces with either a comma or the sequence between the key and the value. A hash is a dictionary like collection of unique keys and their values. When return isn t explicitly called within a method then ruby returns the value of the last executed instruction in the method in the implicit return method as if true is always evaluated as true.