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Ruby Programming Language

Looking for an array method


Sun Park wrote:
> Are there any methods which work exactly like []= but return the changed
> array, different from []= which returns void?

Array#fill?

a = [0, 1, 2, 3]
=> [0, 1, 2, 3]

irb(main):006:0> a.fill("x", 2..2)
=> [0, 1, "x", 3]

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

On 6/3/07, Sun Park <geniusleo@gmail.com> wrote:
> Thanks :) do we have such method in String class, too?

irb(main):008:0> a='abc'
=> "abc"
irb(main):009:0> a[1]=?a
=> 97
irb(main):013:0> a[1..1]="a"
=> "a"

thus String#[]= is behaving differently from Array#[]=

Cheers
Robert
You see things; and you say Why?
But I dream things that never were; and I say Why not?
-- George Bernard Shaw

Sun Park wrote:
> Sorry, what I meant was :

> a = "abc"
> => "abc"
> a (some method with arguments of 1 and "d")
> => "adc"

> I wanted to find out are there any methods behaving like this.

> 2007/6/3, Robert Dober <robert.do@gmail.com>:

a = "abc"
a[1,1] = "d"
a # => "adc"
a[1] = ?b
a # => "abc"

Enjoy
Stefan

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

On 6/3/07, Sun Park <geniusleo@gmail.com> wrote:
> Sorry, what I meant was :

> a = "abc"
> => "abc"
> a (some method with arguments of 1 and "d")
> => "adc"

> I wanted to find out are there any methods behaving like this.

Yes #[]=, what is wrong with it? Would you prefer a method with a
different name, I am not sure there is one.
Robert

--
You see things; and you say Why?
But I dream things that never were; and I say Why not?
-- George Bernard Shaw
On 6/3/07, Stefan Rusterholz <apei@gmx.net> wrote:
> Sun Park wrote:
> > Sorry, what I meant was :

> > a = "abc"
> > => "abc"
> > a (some method with arguments of 1 and "d")
> > => "adc"

> > I wanted to find out are there any methods behaving like this.

> > 2007/6/3, Robert Dober <robert.do@gmail.com>:

This was not my post!!
Robert

> Enjoy
> Stefan

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

--
You see things; and you say Why?
But I dream things that never were; and I say Why not?
-- George Bernard Shaw
On 6/3/07, Robert Dober <robert.do@gmail.com> wrote:

a = "abc"
p a[1] = "d" # I think the OP wants to see "adc" here
p a # not just here

Harry

--

A Look into Japanese Ruby List in English
http://www.kakueki.com/

On 6/3/07, Sun Park <geniusleo@gmail.com> wrote:

> Sorry, what I meant was :

> a = "abc"
> => "abc"
> a (some method with arguments of 1 and "d")
> => "adc"

> I wanted to find out are there any methods behaving like this.

None directly that I know of, but ...

a = "abc
a.split('').fill("d",1,1).join

or

(a[1]='d';a)

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