Asp Forum
Home
|
Login
|
Register
|
Search
Forums
>
comp.lang.ruby
content of an array gets cleared
Parv G.
10/4/2008 3:53:00 AM
Hello,
Looking for you suggestions.
1. array = %w(a b c d e)
2. tempArray = array
3. array.clear
4. puts tempArray.length
line 4 outputs: 0
Why does my tempArray get cleared also?
Any suggestions on how to keep the tempArray content from clearing out?
Thanks
--
Posted via
http://www.ruby-...
.
2 Answers
ragav
10/4/2008 4:06:00 AM
0
Parv G. wrote:
> Hello,
>
> Looking for you suggestions.
>
> 1. array = %w(a b c d e)
> 2. tempArray = array
> 3. array.clear
> 4. puts tempArray.length
>
> line 4 outputs: 0
> Why does my tempArray get cleared also?
> Any suggestions on how to keep the tempArray content from clearing out?
>
> Thanks
because array and tempArray are references to the same Array instance.
# see same object
array.object_id #=> -605829518
tempArray.object_id #=> -605829518
tempArray = array.dup #=> make a shallow copy.
array.clear
puts tempArray.length #=> 5
--
Posted via
http://www.ruby-...
.
Parv G.
10/4/2008 4:15:00 AM
0
> tempArray = array.dup #=> make a shallow copy.
> array.clear
> puts tempArray.length #=> 5
That should do the trick for me.
Thanks a lot!
Parv
--
Posted via
http://www.ruby-...
.
Servizio di avviso nuovi messaggi
Ricevi direttamente nella tua mail i nuovi messaggi per
content of an array gets cleared
Inserendo la tua e-mail nella casella sotto, riceverai un avviso tramite posta elettronica ogni volta che il motore di ricerca troverà un nuovo messaggio per te
Il servizio è completamente GRATUITO!
x
Login to ForumsZone
Login with Google
Login with E-Mail & Password