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C++ Short Hand If Else


Short Hand If...Else (Ternary Operator)

There is also a short-hand if...else, known as the ternary operator because it uses three operands.

The ternary operator returns a value based on a condition: if the condition is true, it returns the first value; otherwise, it returns the second value.

It can be used to replace multiple lines of code with a single line, and is often used to replace simple if...else statements:

Syntax

variable = (condition) ? expressionTrue : expressionFalse;

Instead of writing:

Example

int time = 20;
if (time < 18) {
  cout << "Good day.";
} else {
  cout << "Good evening.";
}

Try it Yourself »

You can simply write:

Example

int time = 20;
string result = (time < 18) ? "Good day." : "Good evening.";
cout << result;

Try it Yourself »

You can also use the ternary operator directly inside the cout statement:

Example

int time = 20;
cout << ((time < 18) ? "Good day." : "Good evening.");

Try it Yourself »

Tip: Use the ternary operator for short and simple conditions. For longer or more complex logic, the regular if...else statement is easier to read.


Nested Ternary (Optional)

You can nest ternary operators to handle more than two outcomes, but it can make your code harder to read:

Example

int time = 22;
string message = (time < 12) ? "Good morning."
  : (time < 18) ? "Good afternoon."
  : "Good evening.";
cout << message;

Try it Yourself »

Note: Although nested ternary operators work, it's usually better to use a normal if...else if...else statement for clarity.




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