Is chrome.runtime.onInstalled.addListener really deprecated?

[Peter Kellner]

I'm following the example in the chrome dev getting started: https://developer.chrome.com/extensions/getstarted

and for some reason, my IDE (webstorm) is showing that addListener is deprecated. I assume eslint must be figuring that out.

Is that true? If so, what doc would show it and what do I replace it with?

chrome.runtime.onInstalled.addListener(function() {
  chrome.storage.sync.set({color: '#3aa757'}, function() {
    console.log("The color is green.");
  });
});

[PhistucK]

When IDEs show a deprecation message, there is usually some guidance for alternatives, maybe the message can be expanded somehow to show that guidance?

Generally, the reference page in the documentation will show it -

https://developer.chrome.com/extensions/runtime#event-onInstalled 

In this case, it does not, so WebStorm might be showing this according to MDN (also not deprecated there) or their internal data/understanding (no reference here).

Not sure why it shows it as deprecated.

☆PhistucK

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[wOxxOm]

Explanation:

Your IDE doesn't know about chrome namespace so it thinks you're using the ancient DOM method addListener, which is indeed deprecated.

Solution:

Install DefinitelyTyped bindings for chrome API:

https://stackoverflow.com/questions/13997468/how-do-i-use-webstorm-for-chrome-extension-development

[PhistucK]

DOM did not have addListener at any point, that I know of, but CSSOM did indeed have it (and it is still supported for backward compatibility) -

window.matchMedia('(max-width: 600px)').addListener(...)

(The addEventListener is supported by now)

So I guess wOxxOm meant that and WebStorm is just inferring the type wrongly (intentionally or not).

☆PhistucK

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