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| /** | ||
| * ======================================================== | ||
| * Conditional (Ternary) Operator | ||
| * ======================================================== | ||
| * The conditional (ternary) operator is a shorthand way to perform conditional (if-else-like) operations. | ||
| * The syntax is: condition ? expression1 : expression2 | ||
| * If the condition is true, expression1 is executed, otherwise, expression2 is executed. | ||
| */ | ||
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| /** | ||
| * ======================================================== | ||
| * Basic Usage | ||
| * ======================================================== | ||
| * In a simple example, you can use it to assign a value to a variable based on a condition. | ||
| */ | ||
| const isAdult = true; | ||
| const type = isAdult ? "Adult" : "Minor"; | ||
| console.log(`Person is an: ${type}`); // Output: 'Person is an: Adult' | ||
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| /** | ||
| * ======================================================== | ||
| * Nested Ternary Operators | ||
| * ======================================================== | ||
| * Ternary operators can be nested for multiple conditions, but this may reduce readability. | ||
| */ | ||
| const age = 25; | ||
| const ageGroup = age < 18 ? "Minor" : age < 60 ? "Adult" : "Senior"; | ||
| console.log(`Age Group: ${ageGroup}`); // Output: 'Age Group: Adult' | ||
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| /** | ||
| * ======================================================== | ||
| * Using with Functions | ||
| * ======================================================== | ||
| * You can also execute functions using the ternary operator. | ||
| */ | ||
| function greetMorning() { | ||
| return "Good Morning"; | ||
| } | ||
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| function greetEvening() { | ||
| return "Good Evening"; | ||
| } | ||
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| const isMorning = true; | ||
| console.log(isMorning ? greetMorning() : greetEvening()); // Output: 'Good Morning' | ||
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| /** | ||
| * ======================================================== | ||
| * As an Expression | ||
| * ======================================================== | ||
| * The ternary operator is an expression, meaning it returns a value. | ||
| * You can use it inline with other operations. | ||
| */ | ||
| const score = 95; | ||
| console.log(`You ${score > 50 ? "passed" : "failed"} the exam.`); // Output: 'You passed the exam.' | ||
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| /** | ||
| * ======================================================== | ||
| * Nuances and Advanced Techniques | ||
| * ======================================================== | ||
| */ | ||
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| /** | ||
| * 1. Type Coercion | ||
| * ---------------- | ||
| * Be cautious about type coercion when using the ternary operator, as it follows the same rules as other JavaScript operators. | ||
| */ | ||
| const value = "5"; | ||
| const number = value == 5 ? "Loose equality" : "Strict inequality"; | ||
| console.log(`Type Coercion: ${number}`); // Output: 'Loose equality' | ||
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| /** | ||
| * 2. Avoid Side Effects | ||
| * ---------------------- | ||
| * Avoid using ternary operators for operations that produce side effects, like assignments or function calls with side effects. | ||
| */ | ||
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| /** | ||
| * 3. Readability | ||
| * -------------- | ||
| * While chaining or nesting ternary operators can be powerful, it can also make code harder to read and maintain. | ||
| */ |
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