UndefVarError: ncounter

General Usage
2

This works:

       wcount = count("banana",'a')
0

julia> function count(word, ltr)
       ncounter = 0;
       for letter in word
         if letter == 'a'
           ncounter = ncounter + 1
         end
       end
       return ncounter

       end

       wcount = count("banana",'a')
3

You should have a read through the scope-section of the manual. Essentially the first ncounter created a variable local to the scope of the function, wherease the second one created a global one. Thus it did not find the local one you initialised before.

Also have a look at Please read: make it easier to help you, in particular on how to quote your code in discourse. Have fun learning Julia!

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