The nullish coalescing operator (??) simplifies setting default values in JavaScript, providing a concise way to handle null or undefined values. It returns the fallback value if the expression is null or undefined, and the original value otherwise. This operator has numerous practical applications, including API data handling, user input validation, and configuration management.
The nullish coalescing operator (`??`) simplifies handling default values in JavaScript by returning the first operand if it's not null or undefined, and the second operand otherwise, making code more expressive and maintainable.
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