Ruby Return Value Of Assignment

Hashes enumerate their values in the order that the corresponding keys were inserted.

Ruby return value of assignment. 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. 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. Since almost everything is an object in ruby we can run the standard object id method on the variable to see its memory address. For more detail on ruby arrays go through ruby arrays.

Result test 5 10 display the result. You are getting wiser and more confident with ruby. True return value. The value of just assignment 2 is going to be 5 because the assignment expression evaluates to 5 therefore that s what s returned.

X 10 y end call test with two arguments. 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. Here is the syntax. That about covers methods.

Def add two number number 2 end p add two 3 the last evaluated statement is the expression number 2. A trailing comma is ignored. In this case the return value for a object id is. A hash is a dictionary like collection of unique keys and their values.

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. Once the is assigned a value the conditional assignment operator cannot be over written. 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 program that uses implicit return value def test x y this expression is evaluated and returned.