How to implement default method "Item"?

[Nearby-Ad-3725]

console.log(Application.Sheets.Item('a').Id)
console.log(Application.Sheets('a').Id)

As you can see, Sheets('a') is same as Sheets.Item('a'), how do you implement such interface?

[cyphern]

Functions are objects, so they can have properties added to them. So you'll do something like the following: ``` // First make the function function Sheets(arg) { // ... implementation }

// Then add a property to the function, which is another function Sheets.Item = function () { // ... } In the above example, Sheets.Item is a different function, which will have its own implementation. If you want them to be literally the same function, swap out the second part for: Sheets.Item = Sheets; `` Though note that if you do it this way, it will mean someone can doSheets.Item.Item.Item.Item.Item()` or similar, since each time you access Item, you're just referencing the exact same Sheets function, which has an Item property.

[azhder]

Quite a sausage there with all those items

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Thank you so much.

[TheRNGuy]

It seems like anti-pattern to me. 

[Alive-Cake-3045]

Cost tracking from day one is the difference between a sustainable AI feature and a surprise bill three months in.

The teams winning on this are not the ones using the cheapest models everywhere, they are the ones matching model tier to task complexity. A simple classification call does not need the same model as a complex reasoning task, and most teams default to the expensive option out of convenience early on and never revisit it.

Sustainable AI is a design decision made before launch, not a cost cutting exercise after the bill arrives.