preceding zero

rubyonrails-talk
1

hi.

I want to format a Integer value to a hour with a preceding zero.(two digits) eg. 8 => 08

Exists a Ruby or Rails function for that?

thanks Michael

2

hi.

I want to format a Integer value to a hour with a preceding zero.(two digits) eg. 8 => 08

Exists a Ruby or Rails function for that?

3

Craig White wrote:

4

Craig White wrote: >
>> hi. >> >> I want to format a Integer value to a hour with a preceding zero.(two >> digits) >> eg. 8 => 08 >> >> Exists a Ruby or Rails function for that? >> >>
> ---- > you can easily create your own function and put it into application.rb > or the helper > > myvar < 10 ? "0" + myvar.to_s : myvar.to_s > > it must be a string to retain the leading zero

or "%02d" % myvar

5

Craig White wrote:

Craig White wrote:

  

hi.

I want to format a Integer value to a hour with a preceding zero.(two digits) eg. 8 => 08

Exists a Ruby or Rails function for that?

---- you can easily create your own function and put it into application.rb or the helper

myvar < 10 ? "0" + myvar.to_s : myvar.to_s

it must be a string to retain the leading zero

or "%02d" % myvar

---- ok - you win

Craig

yes another way

irb(main):024:0> val = 8 => 8 irb(main):025:0> str = sprintf( "%02d", val ) => "08" irb(main):026:0> p str "08" => nil

6

This isn't another way, it's the exact same way.

--------------------------------------------------------------- String#%       str % arg => new_str

7

Craig White wrote:

8

Craig White wrote:

Craig White wrote:

hi.

I want to format a Integer value to a hour with a preceding zero. (two digits) eg. 8 => 08

Exists a Ruby or Rails function for that?

---- you can easily create your own function and put it into application.rb or the helper

myvar < 10 ? "0" + myvar.to_s : myvar.to_s

it must be a string to retain the leading zero

or "%02d" % myvar

---- ok - you win

Craig

yes another way

irb(main):024:0> val = 8 => 8 irb(main):025:0> str = sprintf( "%02d", val ) => "08" irb(main):026:0> p str "08" => nil

-- Kind Regards, Rajinder Yadav

http://DevMentor.org Do Good ~ Share Freely

This isn't another way, it's the exact same way.

--------------------------------------------------------------- String#% str % arg => new_str ------------------------------------------------------------------------ Format---Uses str as a format specification, and returns the result of applying it to arg. If the format specification contains more than one substitution, then arg must be an Array containing the values to be substituted. See Kernel::sprintf for details of the format string.

    &quot;%05d&quot; % 123                       \#=&gt; &quot;00123&quot;
    &quot;%\-5s: %08x&quot; % \[ &quot;ID&quot;, self\.id \]   \#=&gt; &quot;ID   : 200e14d6&quot;

The String class just makes is a bit easier to type.

Rob you're right its the same thing, different syntax, me thinks my C++ style is showing :wink:

9

Thanks for your help.

Best Regards, Michael