Default parameters in JavaScript are a powerful tool to add flexibility to functions by setting predefined values for parameters. They help avoid errors due to missing values, offering a safety net for functions.
Default parameters efficiently handle various scenarios like setting themes in functions, ensuring a default message in case of null or undefined values, and using object destructuring to enhance function behavior.
Object destructuring with default parameters acts as a personal assistant for functions, ensuring that even when specific values are not provided, a predefined behavior is maintained.
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