JavaScript - Owner of "This"

JavaScript - Owner of this

If you want to have the this property be consistent, you should bind the functions that are being called.

For example,

setInterval(function() { /* code here */ }.bind(this), 500)

That way, the this of the inner function will be the same as that of the outer function.

How to find the owner of a property in Javascript

There is unfortunately no way to determine using code what the variable environment is of a given variable.

As for object properties, they should be obvious if they are myObj.property. If not obvious, it could be possible to use an exhaustive search to look for their existence in certain places, or certain known recursively.

Overall, it is not possible to know without looking at implementation documentation.

How to call a function of the owner object

For inputRange on Input to access getValuesRange, it has to have access to an instance of Speed. Your code has to provide it that instance, there's no built-in "what object references this object via a property" operation in JavaScript. (If there were, it would have to allow for the fact multiple objects can reference the same object, as in your example — both Speed instances reference the same Input instance.)

is it possible to get guild owner tag in discord.js v13?

There is also another way to fetch the owner if you want to do it synchronously. You can use guild.ownerId to get the id of the owner and then guild.members.cache.get() to get the owner. An example:

const ownerId = guild.ownerId
const owner = guild.members.cache.get(ownerId)
console.log(owner.user.tag)

(Note: the owner might not be cached sometimes so guild.members.cache.get() might not return anything sometimes. I just posted this as an alternative to @Crytek1012's answer)

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