A boolean function is simply a function that returns a boolean value - a value that can either be "true" or "false". The return value may be used to see whether a function was successful, for example:

if openfile("somefile.txt")
// The file was opened succesfully, we can now proceed

A boolean function will often reply to a question which can be replied with "yes" or "no". For example, you can have a function that asks the user to confirm an action:

if user_confirms("Are you sure you want to delete this file?")
// Delete the file here

Or:

if isPrime(myNumber)
// Output: "Your number is a prime number"
else
// Output: "Your number is not a prime number"

A boolean function is simply a function that returns a boolean value - a value that can either be "true" or "false". The return value may be used to see whether a function was successful, for example:

if openfile("somefile.txt")
// The file was opened succesfully, we can now proceed

A boolean function will often reply to a question which can be replied with "yes" or "no". For example, you can have a function that asks the user to confirm an action:

if user_confirms("Are you sure you want to delete this file?")
// Delete the file here

Or:

if isPrime(myNumber)
// Output: "Your number is a prime number"
else
// Output: "Your number is not a prime number"

A boolean function is simply a function that returns a boolean value - a value that can either be "true" or "false". The return value may be used to see whether a function was successful, for example:

if openfile("somefile.txt")
// The file was opened succesfully, we can now proceed

A boolean function will often reply to a question which can be replied with "yes" or "no". For example, you can have a function that asks the user to confirm an action:

if user_confirms("Are you sure you want to delete this file?")
// Delete the file here

Or:

if isPrime(myNumber)
// Output: "Your number is a prime number"
else
// Output: "Your number is not a prime number"

A boolean function is simply a function that returns a boolean value - a value that can either be "true" or "false". The return value may be used to see whether a function was successful, for example:

if openfile("somefile.txt")
// The file was opened succesfully, we can now proceed

A boolean function will often reply to a question which can be replied with "yes" or "no". For example, you can have a function that asks the user to confirm an action:

if user_confirms("Are you sure you want to delete this file?")
// Delete the file here

Or:

if isPrime(myNumber)
// Output: "Your number is a prime number"
else
// Output: "Your number is not a prime number"

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