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Update the warning note! #763

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Jun 9, 2016
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Update the warning note! #763

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2 changes: 1 addition & 1 deletion getting-started/modules.markdown
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Expand Up @@ -259,7 +259,7 @@ end

If we save the code above in a file named "concat.ex" and compile it, Elixir will emit the following warning:

concat.ex:7: this clause cannot match because a previous clause at line 2 always matches
concat.ex:7: warning: this clause cannot match because a previous clause at line 2 always matches

The compiler is telling us that invoking the `join` function with two arguments will always choose the first definition of `join` whereas the second one will only be invoked when three arguments are passed:

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