Using Ruby, how can I iterate over a for loop n.times

Question

I have a basic ruby loop

for video in site.posts video.some_parameter endfor

I want to run this loop 2 or 3 times.

Is this possible?

I am sorry to be asking such a simple question but I have reviewed the documentation, just still not sure how to run a for loop 3 times. — TJ Sherrill
– TJ Sherrill, Commented Oct 23, 2012 at 18:25

Sully · Accepted Answer · 2012-10-23 17:59:33Z

119

3.times do # do work here end

check http://www.tutorialspoint.com/ruby/ruby_loops.htm

answered Oct 23, 2012 at 17:59

Sully

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4 Comments

TJ Sherrill Over a year ago

so just run a do loop around the for loop?

Sully Over a year ago

Yes, unless you want something different. If you try it and play with the code you will answer all\most of your questions. Just debug and print what the code is doing.

Graham S. Over a year ago

How do you retrieve the index if you need it?

ricks Over a year ago

@GrahamS. I know this is old but you just need to add |i| after do like so 3.times do |i|

ricks · Accepted Answer · 2019-04-24 15:17:46Z

If you need an index:

5.times do |i| print i, " " end

Returns:

0 1 2 3 4

Reference: https://apidock.com/ruby/Integer/times

Plasmarob · Accepted Answer · 2013-08-13 17:12:58Z

It's bad style to use for.

3.times do site.posts.each do |video| video.some_parameter end end

or if video.some_parameter is one line,

3.times do site.posts.each { |video| video.some_parameter } end

see: https://github.com/bbatsov/ruby-style-guide#source-code-layout

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