From: Robert Klemme <shortcutter@...>
Date: 2009-02-20T00:08:45+09:00
Subject: Re: Replacing values

2009/2/19 Ashikali Ashikali <ashikali.m@gmail.com>:
> Andrew Timberlake wrote:
>> On Thu, Feb 19, 2009 at 3:41 PM, Ashikali Ashikali
>> <ashikali.m@gmail.com>wrote:
>>
>>> "This is 18"
>>>
>>> Question ,
>>> How can I convert '' value to "" value .

>> Your question is not clear
>>
>> Changing a ' to a " is as simple as typing a different character.
>> In your example you are typing a string literal so typing it differently
>> should get you the results you're looking for.
>>
>> If you're working on another string, you can do: <string>.gsub(/'/, '"')
>>
>> Andrew Timberlake
>> http://ramblingsonrails.com
>> http://www.linkedin.com/in/andrewtimberlake
>>
>> "I have never let my schooling interfere with my education" - Mark Twain
>
> my question is not that converting ' to " . Apart from this ,
> when we declare string as "" , our ruby replace the variable value into
> actual
> value like this ,
> c = 10
> b = "This is #{c}"
> puts b
> #it prints "This is 10"
> In above, it start to execute and replace c variable value so it prints
> ,
> "This is 10" .
>
> m = 'This is #{d}'  #single quote
> In above , it does not replace d variable( not yet created ) .

No, it does not do the replacement because you used a single quoted string.

> d = 15
> #if I do puts m
> 'This is #{d}'
>
> What I want is when we converting ' to " it start to replace the value d
> .
> is there any method available to do this .

To do what?  Are you thinking of something like this?

irb(main):001:0> a = 'This is #{b}'
=> "This is \#{b}"
irb(main):002:0> b = 10
=> 10
irb(main):003:0> eval("\"#{a}\"")
=> "This is 10"


robert


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