A trailing comma is ignored.
Ruby return value of assignment.
In this case the return value for a object id is.
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.
Def add two number number 2 end p add two 3 the last evaluated statement is the expression number 2.
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.
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.
Here is the syntax.
Once the is assigned a value the conditional assignment operator cannot be over written.
X 10 y end call test with two arguments.
True return value.
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.
You are getting wiser and more confident with ruby.
A hash is a dictionary like collection of unique keys and their values.
Result test 5 10 display the result.
The value of just assignment 2 is going to be 5 because the assignment expression evaluates to 5 therefore that s what s returned.
Hashes enumerate their values in the order that the corresponding keys were inserted.
False return value statements to shorten your if else structures.
Ternary operator logic uses condition.
That about covers methods.
Since almost everything is an object in ruby we can run the standard object id method on the variable to see its memory address.