Printing out contents of 2 arrays using a loop

ruby-talk
1

Hi. I'd like to print out the contents of 2 arrays as follows........

print array1[0] array2[0]
print array1[1] array2[1]
etc

array1 holds names
array2 holds occupation

so an example print out will be.......

Joe Bloggs Carpenter
etc

I'm struggling constructing a loop or iteration that prints this out.
The psuedocode is something as follows...

for length of array1
print out contents of array1 and array2

or something similar

Any help is appreciated thanks.

···

--
Posted via http://www.ruby-forum.com/.

2

irb(main):001:0> a1 = ["joe blogs", "peter smith"]
=> ["joe blogs", "peter smith"]
irb(main):002:0> a2 = ["carpenter", "policeman"]
=> ["carpenter", "policeman"]
irb(main):003:0> a1.zip(a2).each {|name, occupation| puts "#{name} is
a #{occupation}"}
joe blogs is a carpenter
peter smith is a policeman

Another way that avoids creating the intermediate array would be to
iterate using the index:

irb(main):004:0> a1.each_with_index {|name, i| puts "#{name} is a #{a2[i]}"}
joe blogs is a carpenter
peter smith is a policeman
=> ["joe blogs", "peter smith"]

Jesus.

···

On Tue, Nov 2, 2010 at 5:19 PM, Paul Roche <prpaulroche@gmail.com> wrote:

Hi. I'd like to print out the contents of 2 arrays as follows........

print array1[0] array2[0]
print array1[1] array2[1]
etc

array1 holds names
array2 holds occupation

so an example print out will be.......

Joe Bloggs Carpenter
etc

I'm struggling constructing a loop or iteration that prints this out.
The psuedocode is something as follows...

for length of array1
print out contents of array1 and array2

or something similar

Any help is appreciated thanks.

3

names = %w(joe sam john fred)
occupations = %w(tinker tailor soldier spy)

names.zip(occupations).each {|name, occupation| puts "#{name} is a
#{occupation}"}

···

On Tue, Nov 2, 2010 at 12:19 PM, Paul Roche <prpaulroche@gmail.com> wrote:

Hi. I'd like to print out the contents of 2 arrays as follows........

print array1[0] array2[0]
print array1[1] array2[1]
etc

array1 holds names
array2 holds occupation

so an example print out will be.......

Joe Bloggs Carpenter
etc

I'm struggling constructing a loop or iteration that prints this out.

--
Rick DeNatale

Help fund my talk at Ruby Conf 2010:http://pledgie.com/campaigns/13677
Blog: http://talklikeaduck.denhaven2.com/
Github: rubyredrick (Rick DeNatale) · GitHub
Twitter: @RickDeNatale
WWR: http://www.workingwithrails.com/person/9021-rick-denatale
LinkedIn: http://www.linkedin.com/in/rickdenatale

4

Great. Thanks a million

···

--
Posted via http://www.ruby-forum.com/.

5

#zip accepts a block, which avoids creating the merged Array:

irb(main):005:0> names.zip(occupations){|name, occupation| puts "#{name} is a #{occupation}"}
joe is a tinker
sam is a tailor
john is a soldier
fred is a spy
=> nil

Kind regards

  robert

···

On 02.11.2010 17:36, Rick DeNatale wrote:

On Tue, Nov 2, 2010 at 12:19 PM, Paul Roche<prpaulroche@gmail.com> wrote:

Hi. I'd like to print out the contents of 2 arrays as follows........

print array1[0] array2[0]
print array1[1] array2[1]
etc

array1 holds names
array2 holds occupation

so an example print out will be.......

Joe Bloggs Carpenter
etc

I'm struggling constructing a loop or iteration that prints this out.

names = %w(joe sam john fred)
occupations = %w(tinker tailor soldier spy)

names.zip(occupations).each {|name, occupation| puts "#{name} is a
#{occupation}"}

--
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/