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Section 18.6 First Look at Modifying Arrays with Functions

Modifying the value of a variable inside a function isn’t quite as easy as it sounds. The techniques that we know of so far cannot accomplish this task (other than via using the return value of a function) as we can see via the function1() example below. We’ll learn soon how to do this however!
But now look at function2(). Given what we learned from function1() we’d expect the array variable in our main function not to get modified via the attempted change inside function2. See what happens though...

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