expensive | js CLI tool to register and manage domains | DNS library

Hey, I am working on putting up a rocket rest api with a mongodb database.

I have been able to create a successful connection to the MongoDB Atlas and put the resulting client into the state management of rocket via the manage builder function like this:

I'm beginner in Project Reactor and think it's pretty easy, but I can't find the solution. I have N expensive tasks to do, and I want to implement something like Bounded Semaphore in Java (do not request next element until current count of running task less than K). Shortly: complete all tasks, but no more K tasks at the same time

I understand why it's important that all nodes on the Ethereum mainnet must execute any smart contract function call which changes the internal state of the contract or the chain. (For example, transfers from one account to another ec.)

What I'm wondering is, if its true that every node must execute every function called on any smart contract, even if the function doesn't result in a state change.

For example, if an ERC721 smart contract has a function "getName()" which just returns the name of the artwork the NFT represents which is stored in the NFt. Let's say joe connects to the network, and wants executes getName() on a contract. Does that mean that all 9,000 nodes end up spinning cycles executing getName(), even though Joe only needs it to be executed once? Does the gas cost of running "getName()" compensate each of the nodes for the overhead of running "getName()"? If that is true (that every node gets paid) will gas get even more expensive as more nodes join the pool?

Is one of the reasons gas prices are high is because of the inefficiency of every node having to execute every function called on a smart contract, even those that have no effect on state?

If so it would seem to be a very (and perhaps unnecessarily) expensive proposition to execute a computationally intensive but "pure" (no side effects) function on Ethereum, right?

Thanks. apologies for the possibly naive question!

I'm developing an api that communicates with other services from an event architecture using RabbitMQ Topics. Several routes from my API will publish events and I would like to have a single live connection at all times in my API. That way, at every new request I just create a new channel, and keep only one connection (I decided to do this after reading about how expensive an amqp 0-9-2 connection is).

For now I have something like this:

Problem is : When i click one of my CharBarButtons widget, all the other CharBarButtons are also rebuilt is there a way to avoid that and do the rebuilds individually while using StateNotifier holding List(integers are positions of buttons)

CharBarButtons : (Here i am changing the decoration of CharBarButtons according to the isTapped's boolean value)

I am using Redis as cache only. I am performing IO expensive data and storing in redis. Eg of data:

I need to run an iOS App on different regions of the world to test how a streaming service perfoms from different points of the planet.

For that I noticed AWS provides EC2 Mac instances in some regions. The price of this Mac instances is quite expensive, so I would like to know first if it is possible to run an iOS App on an iOS simulator inside these EC2 instances.

Thanks!

I've read in many places that finding the size of a tuple in Elixir is really fast because tuples are stored in contiguous memory cells. However, for lists is more expensive to do because one needs to traverse the whole list to know the length of the list.

I don't understand how by being in contiguous memory cells, finding out the size of a tuple will be faster. Don't you have to go through each cell too?

I've got an xml, that I want to process, and simply label in turn each leaf node, flip or flip in turn, unless some condition is met.

take for example this xml