What means 1_000_000

Ruby
1

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?

2

it’s just for readability!

1_000 is similar to 1000

puts “x” * 20
xxxxxxxxxxxxxxxxxxxx

it just duplicates a string multiple times (in this case 20)

3

EdUarDo [email protected] 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 :slight_smile:

Regards