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One of the things that makes Ruby preferable to developers is that it is an object-based language. Programmers can create a statement for Ruby as a way to visit all the objects in a collection of objects and do something specific with them, a process commonly known as “iterate”. You can create a statement with arrays, Campana objects or any objects that include Enumerable module. There are two ways to do this: by creating a declaration for the creation or the equivalent of each statement .

Choose an object

Choose a subject you want to iterate on .

Defining the desired results. What kind of object you choose depends on the desired results. To count within a specific range have to use an object range. For example, to count from 1 to 10, use this code: a = (1 .. 10). To create a list of items or articles, will be necessary to use a series object. For example, a list of states would look like this: a =% (Maine Michigan Alaska Florida }.

To Create a statement in Ruby

Compose to the statement. The basic structure is “to oppose the collection. “In the following example” to “is an object range. The statement” i in a “i is a defined number within the range of 1 to 10: a = (1 .. 10 ) For i in a

Pass the bond of a block. The block is the section of code that is executed for each item in the collection: a = (1 .. 10) for i in aputs “The number # is (i) “puts” Twice the number is # (i * 2) Create the equivalent

end of each statement

use the phrase: “collection.each do | Object | “. The method is used more frequently than the equivalent” in favour “. It is essentially a disguise for a loop. The expression will visit each object in a variable and assign it to his (object) before executing the block.

Pass a block of each command. It must be delimited by either “do … end” or “{…}”. use “do … end” if the bloc is more than one line long . “{…}” Use if the bloc is all on one line. For example: a = (1 .. 10) a.each do | i | puts “The number is # (i)” puts “Two Sometimes the number is # (i) * 2 “end

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