Language Selection

English French German Italian Portuguese Spanish

Programming Leftovers

Submitted by Roy Schestowitz on Tuesday 16th of November 2021 11:46:24 PM Filed under
Development
  • What's wrong with my footprintWKT?

    Long, long ago, the elder gods of GIS (Geographic Information System) judged that there were only three fundamental shapes you needed for digital mapping on a plane, and that they were all based on points:

  • Rakudo Weekly News: 2021.46 Cro Once Again

    The Cro Development team proudly announced version 0.8.7 of Cro, the set of Raku libraries for building reactive distributed systems, lovingly crafted to take advantage of all Raku has to offer. Sites such as raku.land and the IRC logs server beta run Cro in production. Check out all the fixes, improvements and new features such as async reverse proxying and improved warnings from rendering templates with undefined values.

  • Some notes on using esbuild

    I’ve been writing more frontend code in the last year or two – I’ve been making a bunch of little Vue projects. (for example nginx playground, sql playground, this dns lookup tool, and a couple of others)

  • Adam Young: Calling a Function in Assembly

    In my last post, I reversed a string. I want to build on that to make reusable code; I want to reverse multiple strings. I do this by turning the reverse code into a function and then call it.

    The first step is to reorder the code so that the logic to reverse the string is at the end, and is called using the BL (Branch with link) instruction. We also need to add a return at the end of our code so that we can continue processing. We make sure that the code to exit the program sits in between the calling point and the function.

  • Adam Young: Reversing a String in Assembly

    In my last post, I showed that I could modify a single character in a string. I want to build upon that to perform more complext string manipulations. Lets start with something simple.

    First, lets change a character other than the first. Since we want to reverse the string, changing the last character is a good next step. Insert this into the middle of the previous example.

  • Implement client-side search on your website with this JavaScript tool

    Search is a must-have for any website or application. A simple search widget can allow users to comb through your entire blog. Or allow customers to browse your inventory. Building a custom photo gallery? Add a search box. Website search functionality is available from a variety of third-party vendors. Or you can take the DIY approach and build the entire backend to answer search API calls.

    Lunr.js works on the client-side through JavaScript. Instead of sending calls to a backend, Lunr looks up search terms in an index built on the client-side itself. This avoids expensive back-and-forth network calls between the browser and your server. There are plenty of tutorials online to showcase Lunr's website search functionality. But you can actually use Lunr.js to search any array of JavaScript objects.

    In this how-to, I build a search index for the top 100 books of all time. After that, I show you how to pre-build the index for faster indexing. I'll also show you how to make the most of Lunr's search options. And finally, I'll show off findmymastodon.com—a real-world implementation of Lunr.

  • AMD Releases ROCm AOMP 14.0 Compiler - Switches To New "amd-stg-open" Branch - Phoronix

    AMD released AOMP 14.0 during SC21 week as the newest version of their LLVM/Clang-based compiler providing OpenMP GPU offload support for Radeon graphics processors.

    AOMP 14.0 was released this morning as the newest version of this patched-up version of LLVM/Clang that gets OpenMP GPU offload into good shape with Radeon GPUs and AMD Instinct accelerators.

  • Making Your Own Touchpad With PWM and Rust

    After writing some quick firmware in Rust, he was reporting the values read by the PWM channels. Using python, he could get a good idea of the raw values that were being written over USB and visualized. So rather than implement filtering in hardware or firmware, he elected to do the filtering and processing on the host computer side in Python. We suspect this gave him much shorter iteration cycles.

»

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6