From: Brian Candler <b.candler@...>
Date: 2011-07-20T01:41:43+09:00
Subject: Re: How to change date format from Y/m/d to Y-m-d

liu skywalker wrote in post #1011661:
> 于 2011年07月19日 21:42, Annie smith 写道:
>> Hi All,
>>
>> Do you know how to change date format from Y/m/d to Y-m-d in ruby?
>>
>> Thanks!
>>
> def convert!(time)
>    time=times.split("/").join("-")
> end
> convert!("2011/11/11)

Aside 1: it's unconventional to put an exclamation mark at the end of a 
method name, if the method does absolutely nothing dangerous, nor does 
it modify the receiver.

Aside 2: no need to assign the result. Also, 'times' is not known.

Here's a corrected version:

def convert(time)
  time.split("/").join("-")
end

Here's an alternative one:

def convert(time)
  time.gsub(%r{/}, '-')
end

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