How to remove empty element in an array

Ruby
1

Hi all,

I have an array of [1,2,’’] I want change it to [1,2]. I check the
document about Array but I cant’t find a way to remove the empty
element. Any comments?

Thanks,

Li

2

Li Chen wrote:

Hi all,

I have an array of [1,2,‘’] I want change it to [1,2]. I check the
document about Array but I cant’t find a way to remove the empty
element. Any comments?

http://ruby-doc.org/core/classes/Array.html#M000405

You should really get hold of your copy of the Pickaxe.

Regards

robert
3

On 10/23/06, Li Chen [email protected] wrote:

Hi all,

I have an array of [1,2,‘’] I want change it to [1,2]. I check the
document about Array but I cant’t find a way to remove the empty
element. Any comments?

It’s “[1, 2, ]”? If so, then it’s not an empty element.
If you have [1, 2, nil] then you can just use Array#compact or
Array#compact!. Otherwise, look at #delete_if.

4

I put you code into a file called x and ran it

$ ruby x 9989 9991 9990 9989

39959[~]$

Seems to be working here, cant think why it shouldn’t

5

Peter H. wrote in post #1031329:

I put you code into a file called x and ran it

$ ruby x 9989 9991 9990 9989

39959[~]$

Seems to be working here, cant think why it shouldn’t

Hi,
I am atatchning my test files here, can you please help me .
It is not working for some how…

In unix I have the data but when I pass to ruby it is returning two
values as sum instead of one value.

6

Hi,

Can you please help me on this issue, I have seen your mail id from ruby
forum.

I am using ruby program for summing up all the numbers from array.
Unfortunately it is returning two values instead of one value.??
Can you please help me on this…

I appreciate your help on this…:slight_smile:

Input to array:
9989
9991
19980 -> it summing above two numbers
9990
9989
19979 -> it is summing these two numbers

all 4 numbers shoud add and retunr one value but , my ruby program
returning two values saparately(19980 ,19979 )

sum.rb code

module Enumerable

sum of an array of numbers

def sum
return self.inject(0){|acc,i|acc +i}
end
end # module Enumerable
numbers = []
print “\n”
ARGV.each { |num|
i = Float(num)
numbers << i
}
#n=numbers.sum.to_i
#print n.to_s.gsub(/(\d)(?=\d{3}+(?:.|$))(\d{3}…*)?/,’\1,\2’)
print numbers.sum.to_i
#print “\n”

—Delete ReplyReply ForwardMove

7

It is working only for 253 array elemnets, how to increase teh array
size.?

8

On Fri, Nov 11, 2011 at 1:57 AM, Konda R. [email protected] wrote:

It is working only for 253 array elemnets, how to increase teh array
size.?

What is “it”? Please do not hijack old threads.

Kind regards

robert

9

It is working only for 253 array elemnets, how to increase
teh array size.?

You should pastie your code somewhere.

Example:

http://pastie.org/

It’s hard to help without seeing the code. Also you should start a new
thread, right now this thread is muddled with another thread …

10

-----Messaggio originale-----
Da: Marc H. [mailto:[email protected]]
Inviato: venerd 11 novembre 2011 18:42
A: ruby-talk ML
Oggetto: Re: How to remove empty element in an array

It is working only for 253 array elemnets, how to increase teh array
size.?

You should pastie your code somewhere.

Example:

http://pastie.org/

It’s hard to help without seeing the code. Also you should start a new
thread, right now this thread is muddled with another thread …

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

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11

-----Messaggio originale-----
Da: Konda R. [mailto:[email protected]]
Inviato: gioved 10 novembre 2011 23:16
A: ruby-talk ML
Oggetto: Re: sum returning two values

Peter H. wrote in post #1031329:

I put you code into a file called x and ran it

$ ruby x 9989 9991 9990 9989

39959[~]$

Seems to be working here, cant think why it shouldn’t

Hi,
I am atatchning my test files here, can you please help me .
It is not working for some how…

In unix I have the data but when I pass to ruby it is returning two
values
as sum instead of one value.

Attachments:
http://www.ruby-forum.com/attachment/6738/stats.sum.rb
http://www.ruby-forum.com/attachment/6739/test2011-11-04
http://www.ruby-forum.com/attachment/6740/test.sh

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12

-----Messaggio originale-----
Da: Konda R. [mailto:[email protected]]
Inviato: gioved 10 novembre 2011 21:36
A: ruby-talk ML
Oggetto: sum returning two values

Hi,

Can you please help me on this issue, I have seen your mail id from ruby
forum.

I am using ruby program for summing up all the numbers from array.
Unfortunately it is returning two values instead of one value.??
Can you please help me on this…

I appreciate your help on this…:slight_smile:

Input to array:
9989
9991
19980 → it summing above two numbers
9990
9989
19979 → it is summing these two numbers

all 4 numbers shoud add and retunr one value but , my ruby program
returning
two values saparately(19980 ,19979 )

sum.rb code

module Enumerable

sum of an array of numbers

def sum
return self.inject(0){|acc,i|acc +i}
end
end # module Enumerable
numbers = []
print “\n”
ARGV.each { |num|
i = Float(num)
numbers << i
}
#n=numbers.sum.to_i
#print n.to_s.gsub(/(\d)(?=\d{3}+(?:.|$))(\d{3}..*)?/,‘\1,\2’)
print numbers.sum.to_i
#print “\n”

—Delete ReplyReply ForwardMove

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13

-----Messaggio originale-----
Da: Luca (Email) [mailto:[email protected]]
Inviato: gioved 29 dicembre 2011 07:56
A: ruby-talk ML
Oggetto: I: sum returning two values

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