Puzzle 20Hello, Bonjour
 fn​ ​main​() {
 let​ hello = || println!(​"Hello World"​);
 let​ hello = || println!(​"Bonjour le monde"​);
 hello​();
 }

Guess the Output

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Try to guess what the output is before moving to the next page.

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The program will display the following output:

 Bonjour le monde
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Discussion

In Puzzle 16, Double or Nothing, you saw that you cannot shadow functions with identical names—even if the parameter ...

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