minim | A minimal rethinking of what a chat app | Chat library

The minimal reproducible code below aims to have a loading icon when a button is pressed(to simulate loading when asynchronous computation happen).

For some reason, the Consumer Provider doesn't rebuild the widget when during the callback.

My view:

I don't understand how to correctly get a string from mail body

Input:

I am modeling a Time-constrained CVRP. The problem is to minimize the total travel time (not including the package dropping time) subject to vehicle (delivery) capacity and total time spent (per vehicle) constraints. The package dropping time refers to an additional time to be spent at each node, and the total time spent equals to the travel time plus this additional time. I have the below model that works for a single vehicle-type case. I would like to introduce two-vehicle type concept in there, meaning that I have a set of V1 type vehicles and another set of V2 type vehicles. The only difference of the vehicle-types is the per time cost of travel. Let x denote the per time unit cost of travel by V1, and y denote the per time unit travel cost of V2. How can I design the model so that it incorporates this additional aspect?

I have a comment section on my website and each message have its created_at date time. After fetching it from the MariaDB database, I get a string like "2021-06-15T12:45:28.000Z" (ISO 8601). Then, I convert it to a "x minutes ago" text instead of the full date.

But then, I'm having some trouble when the date is parsed.

I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate) on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last) to do so, but I’m getting horrible error messages.

Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.

Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.

EDIT:

In my real code, I’m wrapping a java-style legacy iterator (that has a next() method instead of operator++/operator*. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range as suggested, but it still doesn’t compile (see the second edit below).

In this minimal example, I'm adding a THREE.SphereGeometry to a THREE.Group and then adding the group to the scene. Once I've rendered the scene, I want to remove the group from the scene & dispose of the geometry.

I have customized a progress bar when I scroll down. According to the content the progress bar gets increased with fixed and scroll up the bar get decreased.

When I tried with position: fixed it is breaking out of the container level. It should come inside the container level with left and right aligned.

Note: I want it to be done in position: fixed

Thank you for anyone help and time, I appreciate it.

I am new to devops. I want to install jenkins. So out of all options available to install jenkins provided in official documentation which one should I use. I am zeroed on docker or kubernetes. So parameters I am looking for decision are below.

1. portability - can be installed on any major os or cloud provider.
2. minimal changes to move to production.

I am trying to contribute to a Github Page/Jekyll site and want to be able to visualise changes locally but when I run bundle exec jekyll serve but I get this output: