Module Function Ruby Example

If that module is in a separate file you must use require to drag that file in before using include.

Module function ruby example.

You can embed a module in a class. They are things that hold methods just like classes do. The instance method versions are made private. So this behavior isn t that different from the instance method behavior we saw in the first example.

The function takes number1 and number2 whose modulo is returned. The modulo function in ruby returns the modulo value of a number by another number. To embed a module in a class you use the include statement in the class syntax include modulename if a module is defined in a separate file then it is required to include that file using require statement before embedding module in a class. I e it is not possible to create objects from a module.

In ruby modules are somewhat similar to classes. The ruby include statement simply makes a reference to a named module. Examples to implement of ruby modules. Instead it makes a reference from the class to the included module.

We can explain the below example in the. It groups methods at a module level without using the mixin facility for example the base64 module i highly recommend you to read the source. It now makes sense to introduce another language feature in ruby. This is an example where we are creating a module and inside this module we are defining a few methods and a constant and then we are directly accessing these methods and constants with the name of the modules.

The function returns the modulo value of a number by another number. However modules can not be instantiated. These functions may be called with the module as a receiver and also become available as instance methods to classes that mix in the module. Second a ruby include does not simply copy the module s instance methods into the class.

And modules unlike classes therefore do not have a. Remember classes and modules are treated as objects in ruby. In ruby a module can be used as logical entity. Consider the following module.

Below are the examples of ruby modules. Using the require method. If used with no arguments subsequently defined methods become module. Module functions are copies of the original and so may be changed independently.