What is the uses of inject()

ruby-talk
1

Hello friends,
Can anybody tell me the answer.

             what is the uses of inject().
Give some example.

by
Vellingiri.

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2

Vellingiri Arul wrote:

Hello friends,
Can anybody tell me the answer.
             what is the uses of inject().

ri Enumerable#inject can give you a more elaborate answer, but here's mine:
It allows you to combine the elements of an array using a block (passing the
initial value or the result of the last iteration as well as the current item
to the block each iteration).

Give some example.

[1,2,3,4].inject {|s,i| s+i}
#=> 10 (1+2+3+4)

some_string="haolaolai foo tadam tadum bar HuHu chunky lamb bacon"
regexen=[/la./,/foo.*bar/,/huhu/i]
regexen.inject(some_string) {|str,re| str.gsub(re,"")}
#=> "hao chunky b bacon"
#(same as some_string.gsub(/la./,"").gsub(/foo.*bar/,"").gsub(/huhu/i,"") )

HTH,
Sebastian

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3

You have a lot of Q and what examples have a look in
http://www.ruby-doc.org/docs/UsersGuide/rg/
//AP

···

On 19 Sep, 12:06, Vellingiri Arul <hariharan....@rediffmail.com> wrote:

Hello friends,
Can anybody tell me the answer.

             what is the uses of inject().
Give some example.

by
Vellingiri.
--
Posted viahttp://www.ruby-forum.com/.

4

Hello friends,
Can anybody tell me the answer.

             what is the uses of inject().

http://errtheblog.com/post/633

Give some example.

http://www.dtcc.edu/cs/rfc1855.html#3

A general hint: search engines can go a long way in helping answering questions.

Regards

robert

···

2007/9/19, Vellingiri Arul <hariharan.spc@rediffmail.com>:

5

anders wrote:

Hello friends,
Can anybody tell me the answer.

             what is the uses of inject().
Give some example.

by
Vellingiri.
--
Posted viahttp://www.ruby-forum.com/.

You have a lot of Q and what examples have a look in
http://www.ruby-doc.org/docs/UsersGuide/rg/
//AP

very very thank you friends.

You have asked one question know,that is not a example program question.
I am also working one software company,I have faced lot of doubts in my
ruby program.
Some thing general what we were discussed the questions.

Ok.

by

vellingiri.

···

On 19 Sep, 12:06, Vellingiri Arul <hariharan....@rediffmail.com> > wrote:

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