Remove from an array

Ruby
1

Hello,
I have an array, let’s name it items[]
I want to remove an object in a elegant way
items.remove(3) does not work
How should I do ?
Thanks

2

Paul L. wrote:

items.delete_at(3)

Just like in the documentation.

Did he want to remove the element at index 3,
or remove instances of 3?

Hal

3

Nicolas Benady wrote:

Hello,
I have an array, let’s name it items[]
I want to remove an object in a elegant way
items.remove(3) does not work
How should I do ?
Thanks

items.delete_at(3)

Just like in the documentation.

4

Hal F. wrote:

items.delete_at(3)

Just like in the documentation.

Did he want to remove the element at index 3,
or remove instances of 3?

I suppose I should have asked that before replying. :slight_smile:

If your theory is correct, then:

items.delete_if { |x| x == 3 }

Removes all items matching “3”.

5

On 8/20/06, Paul L. [email protected] wrote:

items.remove(3) does not work
Did he want to remove the element at index 3,
or remove instances of 3?

I suppose I should have asked that before replying. :slight_smile:

If your theory is correct, then:

items.delete_if { |x| x == 3 }

items.delete 3

Removes all items matching “3”.

as you said

Cheers
Robert

–

Paul L.
http://www.arachnoid.com

–
Deux choses sont infinies : l’univers et la bêtise humaine ; en ce qui
concerne l’univers, je n’en ai pas acquis la certitude absolue.

  • Albert Einstein
6

On Sunday, August 20, 2006, at 7:33 PM, Robert D. wrote:

Nicolas Benady wrote:

If your theory is correct, then:
Cheers
Robert

–

Paul L.
http://www.arachnoid.com

This is slightly off-topic, but…

To remove only the first item matching a value of 3, do this…

items.delete_at(items.index(3))

_Kevin
www.sciwerks.com