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Modified confusing sentence. #78

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Modified confusing sentence. #78

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2 changes: 1 addition & 1 deletion readme.md
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Expand Up @@ -136,7 +136,7 @@ Why do we get `undefined` when we log out the number this time? In this code we

When we run this program all of the functions are immediately defined, but they don't all execute immediately. This is a fundamental thing to understand about async programming. When `addOne` is called it kicks off a `readFile` and then moves on to the next thing that is ready to execute. If there is nothing to execute node will either wait for pending fs/network operations to finish or it will stop running and exit to the command line.

When `readFile` is done reading the file (this may take anywhere from milliseconds to seconds to minutes depending on how fast the hard drive is) it will run the `doneReading` function and give it an error (if there was an error) and the file contents.
When `readFile` is done reading the file (this may take anywhere from milliseconds to seconds to minutes depending on how fast the hard drive is) it will run the `doneReading` function and give it an error (if there was an error) or the file contents(if there was no error).

The reason we got `undefined` above is that nowhere in our code exists logic that tells the `console.log` statement to wait until the `readFile` statement finishes before it prints out the number.

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