Weeds | 本项目主要存放一些个人日常学习、研究的小例子。内容较杂，多是些实验性代码，不成体系，不对各种问题负责。

Use Series.str.split with DataFrame.explode first, then merge with convert index to column for avoid lost values, aggregate by join and add to original df1:

Try it this way and see if it works:

Edited:

Since you are using DOMDocument to parse XML, you might as well use its xpath support to specify, succinctly, what your are looking for:

The closest equivalent I can find is a context menu Src: AppleDeveloper

if you press and hold, you get a similar effect.

Context Menu - Apple Devloper Documentation

You have a couple of issues:

1. The comparison if item == 'bandage' or 'bread' ... then is not going to do what you expect it to do, as bread will be evaluated as true (as it's not compared with item value), so the entire expression will be evaluated as true regardless of what the actual value or item is. You need to rewrite it as it item == 'bandage' or item = 'bread' ... and so on
2. I don't see any comparison with available items, so either it's happening somewhere else (and is not applied because of the first issue) or is not done.

Ultimately I decided on not configuring OkHttpClient to be ratelimited at all. For my specific use case, 99% of my requests are through Coil, and the remaining handful are infrequent and done through Retrofit, so I decided on:

• Not using an Interceptor at all, instead allowing any request that goes through the client to proceed as usual. Retrofit requests are assumed to happen infrequently enough that I don't care about limiting them.
• Making a class that contains a Queue and a Timer that periodically pops and runs tasks. It's not smart, but it works surprisingly well enough. My Coil image requests are placed into the queue so that they'll call imageLoader.enqueue() when they reach the front, but they can also be cleared from the queue if I need to cancel a request.
• If, after all that, I somehow exceed the rate limit by mistake (technically possible, but unlikely,) I'm okay with OkHttp occasionally having to retry the request rather than worrying about never hitting the limit.

Here's the (very simple) queue I came up with:

For a more complex requirement like the one you have, you are going to need to combine DataTables capabilities with some extra logic (JavaScript, in this case) to iterate over the set of tables you need.

So, the following example is not a complete solution - it just shows how to create one copy of your original table, with an applied filter. But this could be extended to loop over each of your continents, one-by-one.

The code creates a variable called tableCopy which contains a clone of the original table. You can then use tableCopy.outerHTML to get the full HTML of the copied table.

You cannot reimplement a type that has been declared outside your crate. This is because any functions you would add in the impl <'a> Token<'a> wouldn't be known to any other crates that use Token. By re-implementing, implementations of the same type would differ between crates and that's why it's not allowed.

The solution

The correct thing to do here is to declare a trait let's say SerializationType with the serialization_type function and then implement SerializationType for Token.

There are a few issues I can see:

1. I don't see any reference syntax in your code, since I don't see any "&"s. The only thing you have are moves. If you start to break away from that syntax, it begins to ruin things.
2. You're also using both "reference" and "borrow" in your javascript, which is confusing, because they mean the same thing in Rust.
3. You don't have a type for doX's parameters, which means you can't handle that variable properly, because it could be a move, which could cause scope problems for the calling function.
4. How did b become a reference to x?

Rust / Understanding Ownership:
https://doc.rust-lang.org/book/ch04-00-understanding-ownership.html

Here's a synopsis of the above link:

For all of this, when I say "variable," I mean "variable that uses the heap." Also, feel free to substitute/interpret "reference" as "borrow."

A variable gets dropped at the end of its scope, if it is still valid. Dropping means freeing the memory. Scope is from when the variable is introduced to the last time it's used. If there are any references to this variable that are still in scope, it's an error.

By default, variables are moved instead of copied.

When a variable is copied, a new, unique variable is created and the data is copied. This creates an entirely new, independent variable.

When a variable is moved to another variable, the initial variable is marked invalid and can no longer be used. (A big tradeoff of this style of memory management.) The new variable points to the same heap data that the old variable did. If the initial variable is used after being marked invalid, it's an error.

A variable can be moved by assigning it to another variable in one of three ways:

1. directly. e.g. x = y
2. by setting the value of a function parameter. e.g. f(x)
3. by returning it from a function, e.g. x = f()

If you pass a variable to another function and want to continue using it after that call, then the function has to "give it back" by returning it (another major deviation from expectations). This is just (2) followed by (3), e.g. x = f(x).

It's possible to create two types of references to a variable: immutable (default) and mutable. A reference just points to the variable instead of the data.

You can have an unlimited number of immutable references to a variable. You can only have one mutable reference, and only if you have no other types of references (including immutable) in scope.

When references are out of scope, they do not call drop. It's an error for references to continue to exist when the variable to which they point has been dropped.

If I were to implement this, I would do the following in order:

• get scope working. This is the time from when a variable or reference is first introduced to the time it is last used. Note that scopes in the same block may or may not overlap.
• get copy working
• get move working, including the drop aspect. detect scope extending beyond validity. Do this in stages, for move types (1), (2), (3) as shown above.
• get immutable reference working, error if attempt to change variable, error if scope beyond validity.
• get mutable reference working, error if any other reference in scope, error if scope is beyond validity.

I would adjust the number of filters to size to 32, then 64, 128, 256. Then I would replace the flatten layer with