Recently I was looking into Firefox Add-on Builder SDK sources, and stumbled on such constants declaration:

const { getCodeForKey, toJSON } = require("../../keyboard/utils");

I could find information about CommonJS Modules, but left part of this assignment slightly confuses me, since it must be language specific, and I couldn't google anything on that.

Can someone point me to some specification/draft that explains what's going on here?

javascript variable-assignment gecko spidermonkey destructuring
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