Hello!
I wrote an article about ruby string methods on my blog rubyguides.

You can read it here:

http://www.rubyguides.com/2018/01/ruby-string-methods/

Let me know what you think :)

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On 02/04/2018 04:00 PM, Jesus Castello wrote:

Hello!
I wrote an article about ruby string methods on my blog rubyguides.

You can read it here:

http://www.rubyguides.com/2018/01/ruby-string-methods/

Let me know what you think :)

Looks nice and useful. Thanks.

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On Sunday, February 4, 2018 at 7:00:17 PM UTC+1, Jesus Castello wrote:

Hello!
I wrote an article about ruby string methods on my blog rubyguides.

You can read it here:

http://www.rubyguides.com/2018/01/ruby-string-methods/

Let me know what you think :)

Looks good. Just a few minor nitpicks:

My preferred method to test whether a string represents a number is to actually convert it and deal with the error:

begin
i = Integer(str)
printf "%d\n", i
rescue ArgumentError
puts "Oh, it's not a number!"
end

Or

i = Integer(str) rescue nil

if i ...



There is another way to extract a sub string:

substr = str[/fo+/]

and for replacing parts of the string:

str[/fo+/] = "bar"

(You'll get an IndexError if there is no match.)

Cheers

robert

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