If else in Swift

In Swift, if and else statements are used to make decisions based on certain conditions. The syntax for if statement is:

if condition {
    // Code to execute if condition is true    
}

If the condition in the if statement is true, the code inside the block will be executed. If the condition is false, the code block will be skipped.

Here is an example:

let x = 10
if x > 5 {

    print("x is greater than 5")

}

In this example, x is set to 10. The if statement checks if x is greater than 5. Since x is indeed greater than 5, the code inside the block will be executed and the string x is greater than 5 will be printed to the console.

You can also include an else block to provide an alternative instruction when the condition is not met. The syntax for if/else statement in Swift is:

if condition {
    // Code to execute if condition is true    
} else {
    // Code to execute if condition is false
}

Here is an example:

let y = 3
if y > 5 {

    print("y is greater than 5")

} else {

    print("y is less than or equal to 5")

}

In this example, y is set to 3. The if statement checks if y is greater than 5. Since y is less than 5, the code inside the else block will be executed and the string y is less than or equal to 5 will be printed to the console.