If statements vs Guard statements

swift-if-vs-guard.md

if true {
  print("This statement gets executed when condition is true")
}

vs.

guard true else {
  print("This statement gets executed when condition is true")
}

☝🏾 the if and guard statements are effectlively the same let's see how they are different...

if let value = someOptional {
   // ...
}

print("\(value)") // Error - `value` is only in scope inside the `if` block

vs.

guard let value = someOptional else {
  // ...
  return
}

print("\(value)") // Works - guard clause ensures `value` exists

Guard statements give you a cleaner way to unwrap optionals than If statements since they're kept in scope when the guard condition evaluates to true..