What Is If Statement?

If you've ever needed to execute a code only under certain conditions, you've used an if statement. Here's how they work. Imagine having a Boolean expression (a piece of code that returns either true or false). It would help to decide whether that boolean expression is true or false and execute the next part of the code accordingly. This is what an if statement does for you. It allows you to programmatically evaluate your boolean expression and run the following line of code based on its result. If you've ever been in a situation where you're like, "if only I had a way to make my code do different things depending on what happens," then the if statement is your best friend. It's like a magic wand that can make your code do whatever you want! The if statement is used as a control statement to branch to different sections of code depending on the result of the Boolean conditional expression. The expression is stated within parentheses and evaluated during execution. Suppose the face results in a valid value, and the code following the if statement is executed. Otherwise, the code following an optional "else" statement is executed. If no other statement exists, execution continues with the code after the if block. The if statement is a tool for decision-making. It allows you to execute one code instead of the other based on one or more specified conditions. You've likely encountered the if statement if you've ever written a program. The if statement is a conditional statement that allows you to perform different actions based on whether or not certain conditions are proper. You can combine multiple states in the Boolean expression to be evaluated within the if statement using the OR operator (||) or AND operator (&&). These are called logical operators because they determine if something is true or false. The other set of corresponding logical operators is | and &. Because the entire expression does not always need to be evaluated, && || produces more efficient code than the other regular logical operators. They are therefore known as short-circuit operators.