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JavaScript Callback Functions in JavaScript Introduction to Callback Functions Anonymous Functions

Charlie Prator
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Charlie Prator
Front End Web Development Techdegree Graduate 19,854 Points

What does Chalkley mean when he says that the anonymous function is "more expressive"?

Chalkley mentions that writing a callback function inline and anonymously makes it more expressive. Here's the function he's referencing in the video:

executeCallback(function () { console.log('Hello'); });

2 Answers

Steven Parker
Steven Parker
227,114 Points

I think he explains it himself right after that, and what he means is that it's very obvious that what is being passed is a function, where it might not be so clear if you were passing just a reference.

Eddie Harmon
Eddie Harmon
17,094 Points

Another way that I personally understand it is that maybe he is saying that anonymous functions are more "explicit". It is direct, clear, whereas if you utilize a named function, unless you look at the code directly, it is easier to mistake as potentially being a variable. But, with an inline, anonymous function, you cannot make that mistake since it is explicit (and not implied via a "name") aka "more expressive".