Willow | multiple Python image libraries into one API | Machine Learning library

Your problem is that structs are value types in Swift. Essentially this means that the instance of Wood that you have in WoodsDetailView is not the same instance that is in your array in your model (WoodData); It is a copy (Technically, the copy is made as soon as you modify the isFavourite property).

In SwiftUI it is important to maintain separation of responsibilities between the view and the model.

Changing the favourite status of a Wood is something the view should ask the model to do.

This is where you have a second issue; In your detail view you are creating a separate instance of your model; You need to refer to a single instance.

You have a good start; you have put your model instance in the environment where views can access it.

First, change the detail view to remove the binding, refer to the model from the environment and ask the model to do the work:

Looks like you're not actually calling the ascOrder and descOrder functions. You are defining inline functions that return those functions. Instead, try this:

From $match (Restrictions)

The $match query syntax is identical to the read operation query syntax; i.e. $match does not accept raw aggregation expressions. To include aggregation expression in $match, use a $expr query expression.

And you need to use $$ to get the variable value.

let

To reference variables in pipeline stages, use the "$$" syntax.

Change the $match stage in the pipeline as:

This looks at the next address and drops it if it is close. It uses agrepl which can also be fine tuned with cost and max.distance

Hope this helps:

You don't need listA; collections.Counter does exactly what you're looking for.

This F# code let Grove(whatTree) = glen is ambiguous because it can be interpreted as value binding with deconstruction or function.

In first case syntax is

If you didn't have any condition on employee ID at all you'd end up with records where a self-match had occurred, e.g. the results would show "Gracie Gardner was hired on the same day as Gracie Gardner"

We could then put ON e1.employee_id <> e2.employee_id - this would prevent Gracie matching with Gracie, but you'd then find "Gracie Gardner was hired on the same day as Summer Payne" and "Summer Payne was hired on the same day as Gracie Gardner" - i.e. you'd get "duplicate records" in terms of "person paired with person", each name being mentioned both ways round

Using greater than prevents this, and effectively means that any given pair of names only appears once. Because Gracie's ID is less than Summer's, you'll get Gracie in e1 paired with Summer in e2 but you won't get Summer in e1 paired with Gracie in e2

Another way of visualizing it is with a square/matrix

My advice is to forget scanning each column separately using nextInt() etc. It leads to pain and suffering in the long run. Instead, scan the whole line and work with the line: split it into a String[] of columns, then work with the columns separately: