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comparing each element of an array automatically

 
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comparing each element of an array automatically
chris_drappier
post 26 Jul, 2007 - 10:36 AM
Post #1


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Joined: 10 Apr, 2007
Posts: 34


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I have this
CODE

s1 = "this is a typing test"
s2 = gets.chomp

s1s = s1.split(//)
s2s = s2.split(//)


I want to compare each element of each array to the corresponding element in the other array like so:

CODE

s1s[0] == s2s[0]
s2s[1] == s2s[1]
s1s[2] == s2s[2]
and so on...


this has to happen automatically though because s1.length will be variable based on the specific string that's in there. I tried to iterate through the array with

CODE

s2s.each{
    |i|
    a = 0
    i == s1s[a]    
    a + 1
}


but all the values return false even if s2 == s1. How can I maek this work?

plz gimme some ruby magic here thx smile.gif
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The Neoracle
post 29 Jul, 2007 - 10:33 PM
Post #2


Check, check, 1, 2.

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Joined: 30 Mar, 2001
Posts: 4,069


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QUOTE(chris_drappier @ 26 Jul, 2007 - 01:36 PM) *

I have this
CODE

s1 = "this is a typing test"
s2 = gets.chomp

s1s = s1.split(//)
s2s = s2.split(//)


I want to compare each element of each array to the corresponding element in the other array like so:

CODE

s1s[0] == s2s[0]
s2s[1] == s2s[1]
s1s[2] == s2s[2]
and so on...


this has to happen automatically though because s1.length will be variable based on the specific string that's in there. I tried to iterate through the array with

CODE

s2s.each{
    |i|
    a = 0
    i == s1s[a]    
    a + 1
}


but all the values return false even if s2 == s1. How can I maek this work?

plz gimme some ruby magic here thx smile.gif



I'd just do:

CODE

foo = s1s & s2s  (& creates an array from the matching values)
foo.length


I don't really get what your trying to do.

Maybe if you expand what on how your using this, it would make more sense.
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chris_drappier
post 30 Jul, 2007 - 07:20 AM
Post #3


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Nevermind DIC, I figured it out myself

CODE

s1 = "this is a typing test"
s2 = "this is a typing test"
s1s = s1.split(//)
s2s = s2.split(//)
a = 0
s2s.each{
    |i|
    puts i == s1s[a]
    a += 1
}


this compares each element of s1s to the corresponding element of s2s for a true or false value. Thx4lookin though smile.gif
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chris_drappier
post 30 Jul, 2007 - 07:40 AM
Post #4


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It's a typing test, and I this is the part that checks for correctness. the very first part. it just checks to see if each letter is the same as the corresponding letter. here's the test a little cleaned up:

CODE

s1 = "this is a typing test"
puts s1
s2 = gets.chomp
s1s = s1.split(//)
s2s = s2.split(//)
a = 0
if s1s ==s2s
    print "100% correct!\n"
else
    s2s.each{
        |i|
        b = i == s1s[a]
        puts b
        a += 1
    }
end

copypaste this to a file and run it on your command line, you'll see what it does
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