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JavaScript

Posted by epmbqxxkpx
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epmbqxxkpx
Front End Web Development Techdegree Student 6,193 Points

If you can write a function without a parameter, what is the point of adding them in?

I've seen many functions written without parameters at all, so I'm confused as to why they are necessary, or if they are. Are function parameters optional? Considered a best practice when used? Or what?

Thank you for your help.

1 Answer

Mark Buckingham
Mark Buckingham
5,574 Points
Mark Buckingham
Mark Buckingham
5,574 Points

Hi,

I have seen this a lot in the tutorials and seems to be to avoid repetitive code, however I don't like it, it is bad practice to have functions referencing global variables and creates a testing and maintenance nightmare. I like to treat functions as a black box wherever possible and pass in whats needed and return any calculated result to the calling code.

Mark.