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The times iterator will take a number and execute the statements in the block that number of times. The times iterator optionally takes an argument and, just like array indices, starts at 0.
Code Samples
Using a number, we can iterate that amount of times:
5.times do
puts "Hello!"
end
This will print "Hello!" to the screen 5 times.
The times method also can take a single argument:
5.times do |item|
puts "Hello! #{item}"
end
Just like an array index, the times index starts at 0.
Another kind of iterator in Ruby
that works specifically with
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integers is the times iterator.
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The times iterator will take a number,
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execute the statements in
the block that number of times.
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The times iterator, optionally,
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takes an argument, and,
just like array indexes, starts at zero.
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Let's see how that works
now using WorkSpaces.
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Okay, using a Ruby workspace let's
go ahead and create a new file.
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We'll call this times.rb.
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The times method is really easy to use.
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We'll take any number,
let's use 5 as an example and
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use a dot like we're going to call
a method and then we use the word times.
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From there, we write a do end
block like we're used to.
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Now let's just type puts hello.
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Now we can run this, using ruby times.rb.
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And we see that it
prints hello five times.
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And we can also send arguments
into the times method.
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Let's create a new file.
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To test that out,
we'll call it times with argument.rb.
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And we'll write that just
like we did the times loop.
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So here we did five times.
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Do end.
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Now just like with other iterators and
blocks,
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if we want to send an argument to
the block we do so by writing a pipe and
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putting the local variable
inside of the pipes.
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The times method can take
one argument into the block
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and we'll go ahead and print that out.
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And if we run ruby times_with_argument.rb.
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We can see, we get all of these
different arguments as the item and
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it starts with zero just
like array indexes.
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Try practicing with the times iterator
on your own now, using WorkSpaces.
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