Use A Conditional To Check Less Than Number In Swift

In Swift, the programming language primarily used for iOS development, conditionals are indispensable tools for complex and dynamic tasks. Specifically, the task to check if a number is less than another is a common task that can be achieved through a simple conditional statement.

Conditional Code Snippet in Swift

To demonstrate this, consider the following example:

var num1 = 10
var num2 = 20

if num1 < num2 {
    print("num1 is less than num2")
} else {
    print("num1 is not less than num2")
}

Code Explanation for Checking if a Number is Less in Swift

This example employs a basic if-else conditional statement to perform the task. Understanding this example unravels a straightforward approach of checking if a number is less than another in Swift Language.

1. var num1 = 10 and var num2 = 20: These lines of code declare two integer variables, num1 and num2, and assign them with values of 10 and 20 respectively. Variable ‘num1’ will be the number to be checked if it’s less than ‘num2’.

2. if num1 < num2: The if keyword starts the conditional statement which inverts to checking if num1 is less than num2. If true, the code block directly following it will be executed.

3. print("num1 is less than num2"): This line is within the code block of the if conditional statement. If num1 is indeed less than num2 as checked by the if statement, then this line will print the message: num1 is less than num2.

4. The else keyword is used when the condition in the if statement is evaluated to false. In this case, if num1 is not less than num2, then it will execute the following code block.

5. Finally, the ‘else’ block will print this message: "num1 is not less than num2" if the condition provided in the if statement was false.

That’s it! With this basic understanding of using conditionals in Swift, you can now easily check if a number is less than another with precision and confidence!