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Times Iteration
2:21The 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.
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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