[ruby-talk:443030] get a random number in specified range

ruby-talk
1

do you know how I can get a random number in the specified range?

like what this shell command does:

$ shuf -i 10000-99999 -n 1
19869

Thank you in advance.

2

You can provide a range to the `rand` method.

eg. `rand 10000..99999`

···

On Sat, Oct 1, 2022 at 7:07 PM Henrik Pang <henrik@simplemail.co.in> wrote:

do you know how I can get a random number in the specified range?

like what this shell command does:

$ shuf -i 10000-99999 -n 1
19869

Thank you in advance.

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3

(10000..99999).to_a.sample is one of several ways to do it.

···

On Sat, Oct 1, 2022 at 8:12 PM Veez Remsik <almighty@veez.us> wrote:

You can provide a range to the `rand` method.

eg. `rand 10000..99999`

On Sat, Oct 1, 2022 at 7:07 PM Henrik Pang <henrik@simplemail.co.in> > wrote:

do you know how I can get a random number in the specified range?

like what this shell command does:

$ shuf -i 10000-99999 -n 1
19869

Thank you in advance.

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4

Random.rand even chooses its output object class according to the Range type :

3.0.3 :003 > Random.rand(10.0..100)
=> 45.48188704112778

10..100 would have returned an Integer.

Best regards,

···

Le 02/10/2022 à 02:11, Veez Remsik a écrit :

You can provide a range to the `rand` method.

eg. `rand 10000..99999`

--
Lionel Bouton
gérant de JTEK SARL
https://www.linkedin.com/in/lionelbouton/

5

10000..99999 is a data stru in ruby? I never know this. thanks.

Veez Remsik wrote:

···

eg. `rand 10000..99999`

6

It is a range in Ruby. There is also a syntax like `10000...99999` with
three dots between. This excludes the latest number from the range. You can
also use the Range class beside these syntactic sugars.

2 Eki 2022 Paz 03:21 tarihinde Henrik Pang <henrik@simplemail.co.in> şunu
yazdı:

···

10000..99999 is a data stru in ruby? I never know this. thanks.

Veez Remsik wrote:
> eg. `rand 10000..99999`

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