I recently actually started "studying" ruby again and attempted to
create a program that would add numbers and print them out (on the
screen of course). Of course the following code would not work:
time1=1
10000000.times do
puts time1+1
end
All it would do, is simply print out the number 2, 10000000 times. I
continually got errors when editing it. Could someone please assist?
With Thanks,
Will Mueller wrote:
time1=1
10000000.times do
puts time1+1
endAll it would do, is simply print out the number 2, 10000000 times. I
continually got errors when editing it. Could someone please assist?
Well, it's as simple as adding a '=':
time1 = 1
10000000.times do
~ time1 += 1 # this is shorthand for time1 = time1 + 1
~ puts time1
end
You need to tell Ruby, that you want to change the variable explicitly.
A quote I cannot attribute: "Computers never do what they should, only
what you tell them to do". 
It might help if you put spaces between operators, as that helps in
catching errors. I am speaking from experience.
- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan
~ "That's the whole problem with science. You've got a bunch of
~ empiricists trying to describe things of unimaginable wonder."
~ --- Calvin
Thanks, that worked.
On Sun, Apr 20, 2008 at 4:33 PM, Phillip Gawlowski <cmdjackryan@googlemail.com> wrote:
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Hash: SHA1Will Mueller wrote:
> time1=1
> 10000000.times do
> puts time1+1
> end
>
> All it would do, is simply print out the number 2, 10000000 times. I
> continually got errors when editing it. Could someone please assist?Well, it's as simple as adding a '=':
time1 = 1
10000000.times do
~ time1 += 1 # this is shorthand for time1 = time1 + 1
~ puts time1
endYou need to tell Ruby, that you want to change the variable explicitly.
A quote I cannot attribute: "Computers never do what they should, only
what you tell them to do".It might help if you put spaces between operators, as that helps in
catching errors. I am speaking from experience.- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan~ "That's the whole problem with science. You've got a bunch of
~ empiricists trying to describe things of unimaginable wonder."
~ --- Calvin
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--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
it's as simple as ...
adding an argument list:
10.times do |time1|
puts time1+1
end
Or even use a range:
(1..10).each { |num| p num }
Dan Diebolt wrote:
it's as simple as ...
adding an argument list:
10.times do |time1|
puts time1+1
end
If I was to revise it to be able to simply type in a number and then
allow the program to count up to that on the screen how should it be
revised?
time2=(something with user input)
puts time2+=1
end
Something like that?
On Wed, Apr 23, 2008 at 2:15 PM, Dana Merrick <dana.merrick@trincoll.edu> wrote:
Or even use a range:
(1..10).each { |num| p num }
Dan Diebolt wrote:
>
> > it's as simple as ...
> >
>
> adding an argument list:
>
> 10.times do |time1|
> puts time1+1
> end
>
>
--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
Hi --
On Thu, 24 Apr 2008, Dana Merrick wrote:
Dan Diebolt wrote:
it's as simple as ...
adding an argument list:
10.times do |time1|
puts time1+1
endOr even use a range:
(1..10).each { |num| p num }
If you really just want to print out the numbers:
puts *1..10
David
--
Rails training from David A. Black and Ruby Power and Light:
INTRO TO RAILS June 9-12 Berlin
ADVANCING WITH RAILS June 16-19 Berlin
INTRO TO RAILS June 24-27 London (Skills Matter)
See http://www.rubypal.com for details and updates!
No, I mean in a manner that allows user input. So you may type in a
number then allow the computer to count to that number.
On Fri, Apr 25, 2008 at 7:03 AM, David A. Black <dblack@rubypal.com> wrote:
Hi --
On Thu, 24 Apr 2008, Dana Merrick wrote:
> Dan Diebolt wrote:
>
> >
> > > it's as simple as ...
> > >
> >
> > adding an argument list:
> >
> > 10.times do |time1|
> > puts time1+1
> > end
> >
> >
>
> Or even use a range:
>
> (1..10).each { |num| p num }
>If you really just want to print out the numbers:
puts *1..10
David
--
Rails training from David A. Black and Ruby Power and Light:
INTRO TO RAILS June 9-12 Berlin
ADVANCING WITH RAILS June 16-19 Berlin
INTRO TO RAILS June 24-27 London (Skills Matter)
See http://www.rubypal.com for details and updates!
--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
I didn't know that! That's awesome.
-Dana
David A. Black wrote:
Hi --
On Thu, 24 Apr 2008, Dana Merrick wrote:
Dan Diebolt wrote:
it's as simple as ...
adding an argument list:
10.times do |time1|
puts time1+1
endOr even use a range:
(1..10).each { |num| p num }
If you really just want to print out the numbers:
puts *1..10
David
require 'readline'
num = ask('Count to what number?: )
num.times do |x|
puts x
sleep 1
x += 1
end
end
On Apr 25, 10:08 am, Will Mueller <will.lil...@gmail.com> wrote:
No, I mean in a manner that allows user input. So you may type in a
number then allow the computer to count to that number.
edit:
require 'highline'
num = ask('Count to what number?: )
num.times do |x|
puts x
sleep 1
x += 1
endend
Received the following error: realcountin.rb:3 unterminated string
meets end of file
realcounting.rb:3: syntax error, unexpected $end, expecting ')'
On Fri, Apr 25, 2008 at 3:20 PM, John <john.d.perkins@gmail.com> wrote:
On Apr 25, 10:08 am, Will Mueller <will.lil...@gmail.com> wrote:
> No, I mean in a manner that allows user input. So you may type in a
> number then allow the computer to count to that number.
>require 'readline'
num = ask('Count to what number?: )
num.times do |x|
puts x
sleep 1
x += 1
endend
--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
Moral of the story: run your code before they all laugh at you.
require 'rubygems'
require 'highline/import'
count = ask('Count to what number?: ')
c = 0
amt = count.to_i + 1
amt.times do |c|
puts c
c += 1
sleep 1
end
Still getting an error after editing to make:
require 'rubygems'
require 'highline/import'
count = ask('Count to what number?: ')
c = 0
amt = count.to_i + 1
amt.times do |c|
puts c
c += 1
sleep 1
end
Much larger error.
On Fri, Apr 25, 2008 at 4:47 PM, Will Mueller <will.liljon@gmail.com> wrote:
Received the following error: realcountin.rb:3 unterminated string
meets end of filerealcounting.rb:3: syntax error, unexpected $end, expecting ')'
On Fri, Apr 25, 2008 at 3:20 PM, John <john.d.perkins@gmail.com> wrote:
> On Apr 25, 10:08 am, Will Mueller <will.lil...@gmail.com> wrote:
> > No, I mean in a manner that allows user input. So you may type in a
> > number then allow the computer to count to that number.
> >
>
> require 'readline'
>
> num = ask('Count to what number?: )
>
> num.times do |x|
> puts x
> sleep 1
> x += 1
> end
>
> end
>
>--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
print "Upto what number? " # ask the question
max = gets.to_i # get a string and convert it to a number
puts *(1..max) # creates a range from 1 to max, then turns it into an
array, then prints each one.
--
Posted via http://www.ruby-forum.com/.
How are you running this? My snippet works from the command line, I
don't know about irb. Save it as 'countly.rb' and try >ruby countly.rb
Interesting.
The previous one worked. Thanks.
On Fri, Apr 25, 2008 at 5:35 PM, John <john.d.perkins@gmail.com> wrote:
How are you running this? My snippet works from the command line, I
don't know about irb. Save it as 'countly.rb' and try >ruby countly.rbInteresting.
--
Will M
wce.page.tl
freetechtips.tk
will.liljon@gmail.com
I suppose if we're golfing:
p "Upto what number?"; p *1..gets.to_i
-Dana
Peter Bunyan wrote:
print "Upto what number? " # ask the question
max = gets.to_i # get a string and convert it to a number
puts *(1..max) # creates a range from 1 to max, then turns it into an array, then prints each one.