What is a Ternary Operator?
The ternary operator (?:) is a shorthand way to express conditional expressions, providing a concise alternative to if-else statements.
How to Use the Ternary Operator:
Follow these steps:
- Condition: Write the condition that determines the output.
- Question Mark (?): Place a question mark (?) after the condition.
- True Expression: Write the expression that will be executed if the condition is true.
- Colon (:): Place a colon (:) after the true expression.
- False Expression: Write the expression that will be executed if the condition is false.
Syntax:
condition ? true_expression : false_expression
Example in JavaScript:
let isRaining = true;
let message = isRaining ? "Stay indoors" : "Go for a walk";
console.log(message); // Output: "Stay indoors"
Key Concepts:
- Conditional Expression: The ternary operator allows for concise conditional expressions.
- Shorthand: It's a shorthand notation for if-else statements.
- Conditional Logic: The ternary operator evaluates conditions and returns different values based on their truthiness.
Benefits:
- Improves code readability
- Simplifies conditional statements
- Reduces the number of lines of code