When declaring a function in JavaScript, what is the significance of square brackets? How can you add more arguments by utilizing spaces? Is this considered pseudocode?
router.METHOD(path, [callback, ...] callback)For more information, please visit: https://expressjs.com/en/4x/api.html#router.METHOD
If you think this should be a comment, please inform me.
Basically, what is being communicated here is that you have the flexibility to provide multiple middleware functions, separated by commas, *AND/OR* a single callback function to execute at the end of the method.
The square brackets symbolize an "array-like" structure (although not technically an array) for any number of middleware functions you wish to execute before the final function call in the method.
The space following the square brackets serves as an *AND/OR* indicator, indicating that you can include multiple middleware functions along with a final function, OR solely the final function without any middleware functions.
This documentation doesn't define a new function; rather, it illustrates how many middleware functions you can include for this particular method defined elsewhere: you have the option to include as many middleware functions as desired, AND THEN the final function, or none, AND THEN the final function.
Does that clarify things for you?
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