Using Match with Regexp-Do not quite understand the formula

Hi Ruby on Rails community!

I am trying to write a program that uses the .match command to find out
if a string contains a certain word-then using that information write a
conditional statement. The issue I am running into is that I am self
teaching myself and do not really know how to properly use this new
found str. method. Right now this is what my code looks like

def your_plans(activity) #want to use a method for this one
if /activity/.match(“movie”)
#this is where I get it wrong, I am not sure if this is the proper way
to present the match, and if i am #putting the argument in the correct
position.
puts “I love movies too!”
else
puts “why didn’t you see a movie?”
end
end

puts your_plans(“Yesterday, I went to go see a movie”)

it is super basic, as I am just a starter. I think the rest of my code
is correct, i just cant figure out the match method. If anyone has some
pointers on why certain pieces go where that would be really helpful. I
have been using this site to look up and learn methods.
http://www.ruby-doc.org/core-1.9.3/String.html

thanks!

On Aug 29, 2013, at 10:42 AM, Alex Froelich wrote:

Hi Ruby on Rails community!

I am trying to write a program that uses the .match command to find out
if a string contains a certain word-then using that information write a
conditional statement. The issue I am running into is that I am self
teaching myself and do not really know how to properly use this new
found str. method. Right now this is what my code looks like

def your_plans(activity) #want to use a method for this one
if /activity/.match(“movie”)

Take the slashes off of activity, and this should just work.

irb
1.9.3p429 :001 > “i love movies”.match(“movie”)
=> #<MatchData “movie”>
1.9.3p429 :002 > “i love movies”.match(“walrus”)
=> nil
1.9.3p429 :003 >

it is super basic, as I am just a starter. I think the rest of my code
is correct, i just cant figure out the match method. If anyone has some
pointers on why certain pieces go where that would be really helpful. I
have been using this site to look up and learn methods.
http://www.ruby-doc.org/core-1.9.3/String.html

Hope this helps,

Walter

Walter D. wrote in post #1119949:

On Aug 29, 2013, at 10:42 AM, Alex Froelich wrote:

Hi Ruby on Rails community!

I am trying to write a program that uses the .match command to find out
if a string contains a certain word-then using that information write a
conditional statement. The issue I am running into is that I am self
teaching myself and do not really know how to properly use this new
found str. method. Right now this is what my code looks like

def your_plans(activity) #want to use a method for this one
if /activity/.match(“movie”)

Take the slashes off of activity, and this should just work.

irb
1.9.3p429 :001 > “i love movies”.match(“movie”)
=> #<MatchData “movie”>
1.9.3p429 :002 > “i love movies”.match(“walrus”)
=> nil
1.9.3p429 :003 >

it is super basic, as I am just a starter. I think the rest of my code
is correct, i just cant figure out the match method. If anyone has some
pointers on why certain pieces go where that would be really helpful. I
have been using this site to look up and learn methods.
http://www.ruby-doc.org/core-1.9.3/String.html

Hope this helps,

Walter

Hi Walter,

Thanks for your quick reply. I removed the “/” around activity, but when
i put everything in my code. I am receiving a syntex error.

def welcome(activity)
if activity.match(“movies”)
puts “Yes, Movies are awesome!”
else
puts “why don’t you like movies?”
end
end
puts activity(“I like going to movies”)

What i am looking to get in the output is either a “Yes, Movies are
awesome” if .match finds “movies”, or “why don’t you like movies?” if
.match is unable to find movies in the statement. I am thinking it still
has to do with me not setting up the argument and .match correctly.

thanks,
Alex

On Aug 29, 2013, at 1:03 PM, Alex Froelich wrote:

1.9.3p429 :003 >

puts “Yes, Movies are awesome!”

thanks,
Alex

Your method is called welcome(), but you are calling activity(). Make
the last line read as this:

puts welcome(“I like going to movies”)

and you will see the output you desire.

Walter

Walter D. wrote in post #1119974:

On Aug 29, 2013, at 1:03 PM, Alex Froelich wrote:

1.9.3p429 :003 >

puts “Yes, Movies are awesome!”

thanks,
Alex

Your method is called welcome(), but you are calling activity(). Make
the last line read as this:

puts welcome(“I like going to movies”)

and you will see the output you desire.

Walter

Do’h!! Thanks for catching that for me :slight_smile: Everything is working out
really nicely now. Thanks for taking the time to help me out, Walter.

best,
Alex