Array to string

ruby-talk
1

Hi
Whats the most elegant / shortest way to convert an array to a string, like
a=["a","b","c"] # => "abc"

And the best way for
a=[1,2,3,4,5] # => "12345"

Thanks
Berg

2

​Well, clearly the *best *way would be to create a factory class that
builds expert objects to process the various types of lists to...

Er...

Actually I'd just do this:

    the_array.join

Cheers

···

On 29 August 2016 at 17:11, A Berger <aberger7890@gmail.com> wrote:

Hi
Whats the most elegant / shortest way to convert an array to a string, like
a=["a","b","c"] # => "abc"

And the best way for
a=[1,2,3,4,5] # => "12345"

Thanks
Berg

--
  Matthew Kerwin
  http://matthew.kerwin.net.au/

3

[1,2,3].join #=>"123"

Matthew Kerwin <matthew@kerwin.net.au>于2016年8月29日周一 下午3:28写道：

···

On 29 August 2016 at 17:11, A Berger <aberger7890@gmail.com> wrote:

Hi
Whats the most elegant / shortest way to convert an array to a string,
like
a=["a","b","c"] # => "abc"

And the best way for
a=[1,2,3,4,5] # => "12345"

Thanks
Berg

​Well, clearly the *best *way would be to create a factory class that
builds expert objects to process the various types of lists to...

Er...

Actually I'd just do this:

    the_array.join

Cheers
--
  Matthew Kerwin
  http://matthew.kerwin.net.au/

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4

Hi
ok, just thought of complicated each and map, because to_s wasn't what I
wanted.

Factory classes! I know every response contains new things, I have never
heard about :slight_smile:
Are they used commonly in Ruby?

Thanks
Berg

5

Hi
ok, just thought of complicated each and map, because to_s wasn't what I
wanted.

Factory classes! I know every response contains new things, I have never
heard about :slight_smile:
Are they used commonly in Ruby?

​Indeed no. That was a joke, harking back to my Software Engineering / Java
days. If you're interested, you could start at Wikipedia and work your way
from there: Software design pattern - Wikipedia

Thanks
Berg

​Cheers.

···

On 29 August 2016 at 17:47, A Berger <aberger7890@gmail.com> wrote:
--
  Matthew Kerwin
  http://matthew.kerwin.net.au/

6

Hi
Whats the most elegant / shortest way to convert an array to a
string, like
a=["a","b","c"] # => "abc"

And the best way for
a=[1,2,3,4,5] # => "12345"

Thanks
Berg

Matthew Kerwin <matthew@kerwin.net.au>于2016年8月29日周一 下午3:28写道：

​​> ​Well, clearly the best way would be to create a factory class that

builds expert objects to process the various types of lists to...

Er...

Actually I'd just do this:

    the_array.join

Cheers

[1,2,3].join #=>"123"

Yep, that's why I suggested it.

Cheers!

···

On 29 August 2016 at 17:11, A Berger <aberger7890@gmail.com> wrote:
On 29 August 2016 at 17:29, timlen tse <tinglenxan@gmail.com> wrote:
--
  Matthew Kerwin
  http://matthew.kerwin.net.au/

7

From what I have read this is not common practice, but this is simple.

["a","b","c"] * ""

#join from what I have read up on is the most common way.

···

On Mon, Aug 29, 2016 at 3:47 AM, Matthew Kerwin <matthew@kerwin.net.au> wrote:

On 29 August 2016 at 17:11, A Berger <aberger7890@gmail.com> wrote:
>
> Hi
> Whats the most elegant / shortest way to convert an array to a
> string, like
> a=["a","b","c"] # => "abc"
>
> And the best way for
> a=[1,2,3,4,5] # => "12345"
>
> Thanks
> Berg

Matthew Kerwin <matthew@kerwin.net.au>于2016年8月29日周一 下午3:28写道：
>
​​> ​Well, clearly the best way would be to create a factory class that
> builds expert objects to process the various types of lists to...
>
> Er...
>
> Actually I'd just do this:
>
> the_array.join
>
> Cheers

On 29 August 2016 at 17:29, timlen tse <tinglenxan@gmail.com> wrote:
>
> [1,2,3].join #=>"123"
>

Yep, that's why I suggested it.

Cheers!
--
  Matthew Kerwin
  http://matthew.kerwin.net.au/

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--

live life, but live it without regrets. A life given and laid down to
follow Yeshua, is a life worth living, because you will not regret that
choice.

8

Hi
YES - haven't seen the :slight_smile: ?
Perhaps we should start a new thread with subject "Factor classes"
Have already read the wiki because of your 1st mail.
Should this concept be used in Ruby?

And thanks for short arr * char,
very nice! - Its always worth to ask here!

Cheers
Berg

9

Try this

a=["a","b","c"]
b = a.join.to_s

a=[1,2,3,4,5]
b = a.join.to_s

···

On Mon, Aug 29, 2016 at 9:11 AM, A Berger <aberger7890@gmail.com> wrote:

Hi
Whats the most elegant / shortest way to convert an array to a string, like
a=["a","b","c"] # => "abc"

And the best way for
a=[1,2,3,4,5] # => "12345"

Thanks
Berg

Unsubscribe: <mailto:ruby-talk-request@ruby-lang.org?subject=unsubscribe>
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