Introduction to If Ruby

If Ruby is a conditional statement that allows programmers to execute certain code when a specific condition is met. It is one of the most basic and important statements in programming, used in all programming languages.

Syntax

The syntax for If Ruby is:

if condition
  # code to run when condition is true
end

The "condition" is a statement that evaulates to either true or false. If the condition is true, the code inside the if statement will be executed.

Example

Here's an example of If Ruby in action:

x = 10
if x > 5
  puts "x is greater than 5"
end

In this example, the "condition" is "x > 5". Since x is set to 10, the condition is true and the code inside the if statement is executed, printing "x is greater than 5" to the console.

Else Statement

If Ruby can also be used with an else statement, to execute a different block of code when the condition is false. The syntax for If Ruby with an else statement is:

if condition
  # code to run when condition is true
else
  # code to run when condition is false
end

Example with Else Statement

Here's an example of If Ruby with an else statement:

x = 2
if x > 5
  puts "x is greater than 5"
else
  puts "x is not greater than 5"
end

In this example, the "condition" is "x > 5". Since x is set to 2, the condition is false and the code inside the else statement is executed, printing "x is not greater than 5" to the console.

Conclusion

If Ruby is a simple, yet powerful, tool for programmers to execute code based on certain conditions. It is a fundamental concept in programming that is used in virtually every programming language.