docs (#2528): add references to help people new to getter functions i…

[bencodezen]

Description of Problem

Getter functions are referenced a lot in docs, but if you're new to JS, it is unclear whether this is a Vue thing or a JS thing.

Proposed Solution

Similar to how acronyms are defined at the beginning of each article before being used throughout the rest, adding a link referencing to what getters / setters are can help provide clarity to people newer to JavaScript and haven't encountered these concepts yet.

Additional Information

Related issue #2528

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[brc-dd]

I don't think getter function in Vue's context is same as get syntax. It's more like any function that returns something.

That MDN link just shows things like const foo = { get bar() { return 1 } }. If one is reading that link and will try to apply that to, say, computed it won't work.

[AloisSeckar]

I don't think getter function in Vue's context is same as get syntax.

Then perhaps a better approach would be to include it into Glossary under its own label? 🤔

[nielsbom]

Any idea why the term "getter function" is used so consistently?

Maybe use "value-returning-function" or "function that returns a value" instead to make it more clear that it's not a special concept?

[bencodezen]

I don't think getter function in Vue's context is same as get syntax. It's more like any function that returns something.

That MDN link just shows things like const foo = { get bar() { return 1 } }. If one is reading that link and will try to apply that to, say, computed it won't work.

Further down in the description, there's the following snippet:

The getter syntax allows you to specify the getter function in an object initializer.

I believe this is the concept that we are referring to, though maybe I'm wrong.

[nielsbom]

W00t!