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Hi all,
trying ri and reading documentation for Benchmark I've seen an example
that says:

Benchmark.measure {"a"*1_000_000}

What's that literall? I've tried to do it with 1000000 instead of 1_000_000 and
it works too.

And what means the expression "a"*1000000? What do that?

EdUarDo <> writes:
> Benchmark.measure {"a"*1_000_000}
>
> What's that literall? I've tried to do it with 1000000 instead of
> 1_000_000 and it works too.

It *is* the same, only more friendly for human readers.

> And what means the expression "a"*1000000? What do that?

Why don't you just try it in irb?

irb(main):001:0> "a" * 10
=> "aaaaaaaaaa"

It's that simple

Regards