How to set default parameter value for a javascript function
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in javascript, setting default parameter values for functions allows developers to specify initial values for parameters that may not be provided during function calls. this feature enhances code readability and prevents errors caused by undefined parameters. to implement default values, you can assign a value directly to the parameter in the function declaration. when the function is invoked, if a corresponding argument is not passed, the default value is used instead. this practice is particularly useful for creating flexible functions that can operate with varying levels of input while ensuring that certain parameters have meaningful defaults. additionally, default parameters can be combined with other features such as rest parameters and destructuring, providing further versatility in function design. overall, default parameters contribute to cleaner, more robust code, reducing the need for additional checks or logic to handle missing arguments.
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