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JavaScript Asynchronous Programming with JavaScript Asynchronous JavaScript with Callbacks Async Programming and Callback Functions

Posted by Alsaig Sandra
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Alsaig Sandra
Front End Web Development Techdegree Graduate 15,434 Points

Not understanding (json)

Why is the parameter of the callback function isn't (data)? Why is it (json)? Or am I wrong in assuming that that's the same argument?

Shumin Zhou
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Shumin Zhou
Full Stack JavaScript Techdegree Graduate 32,510 Points

Hi, you can name your parameter name whatever you want, but whatever you name that parameter, it will hold a data that will pass into this function.

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

As Shumin pointed out, the parameter name itself is not important to the operation of the function. But it's considered a "best practice" to use a name that represents the kind of content that the parameter is expected to have.

So in this case, naming it "json" is a bit more descriptive than just "data" if the contents are going to be in JSON format.