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﹃ITNEXT﹄
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すべて
3users
itnext.io
In the Introduction To Database Indexing Article, We discussed database indexes, Their type, representations, and use cases. In this article, we will experiment to check which performs better as a clustered index. UUID version 4 vs UUID version 7 or 6. Then we will discuss why that happened. What is UUID version 4?UUID, an acronym for Universally Unique Identifier, is a 128-bit identifier represen
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テクノロジー
●2024/01/27 08:50
●algorithm
●開発
3users
itnext.io
A combination of AWS Lambda and Amazon API Gateway is a widely-used architecture for serverless microservices and API based solutions. They enable developers to focus on their applications, instead of spending time provisioning and managing servers. API Gateway is a feature rich offering that includes with support for different API types (HTTP, REST, WebSocket), multiple authentication schemes, AP
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テクノロジー
●2022/05/07 17:48
●aws
●あとで読む
11users
itnext.io
OverviewCRuby is a highly portable C application, and it runs on many platforms (You can see which platforms are tested on CI here). However the “portability” is only at source level, and the built executable is not portable across architectures and system call interfaces. This project made CRuby portable at executable file level by porting it to a standalone WebAssembly with WASI ABI. Furthermore
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テクノロジー
●2022/03/18 15:19
●WebAssembly
●ruby
●HTML5
●techfeed
3users
itnext.io
Modern languages such as Go, Julia and Rust don’t need complex garbage collectors like the ones use by Java C#. But why? To explain why, we need to get into how garbage collectors work and how different languages allocate memory in different ways. However, we will start by looking at why Java in particular needs such a complex garbage collector. I will cover a lot of different garbage collector to
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テクノロジー
●2021/11/24 11:51
●Technology
●あとで読む
3users
itnext.io
In case you have a lot of JavaScript related logic running inside a main thread or a Web Worker, it makes perfect sense to move expensive logic into another worker. Workers run inside a different thread using their own CPU if possible. However, there can be use cases where in some scenarios there is a lot of JS related workload on a given thread, while in other scenarios this thread is mostly idle
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テクノロジー
●2021/08/14 16:34
●webworker
●JavaScript
●article
4users
itnext.io
At the end of Zurihac this year, I released a preview version of HMock, a new library for testing with mocks in Haskell. Let’s talk about what this is, why I wrote it, and how you can use it. A Toy ChatbotLet’s suppose I want to write a chatbot in Haskell. I might start with a few types, like so… newtype User = User String deriving (Eq, Show) data PermLevel = Guest | NormalUser | Admin deriving (E
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テクノロジー
●2021/06/30 13:25
●Haskell
●HotEntry
●テスト
●プログラミング
3users
itnext.io
Many times online the question has been asked “Is flutter good for web”, and what many developers fail to truly understand is that is a very broad and open question and there are many factors that go into saying yes, no or maybe. While I am most certainly no expert, I have been around the block for a little over a decade and have spent the last 2+ years working with flutter for mobile and web and
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テクノロジー
●2021/06/22 01:38
3users
itnext.io
Probably the most important part of a technical interview is the knowledge check for Algorithms and Data Structures. This is the must-have part of learning curve of a professional programmer in any language, especially for a Flutter. The glory mission of Flutter is to write code for mobile devices. Mobile devices need a special attention to performance of its algorithms and effective memory usage.
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テクノロジー
●2021/06/18 16:00
4users
itnext.io
Hi 👋 I am Luke and I am a software developer and I love learning new things. Every day is an opportunity to improve myself and do something! I started my Flutter series as my input to the community. It feels great. When I feel some topics are neglected or not talked about enough I try to jump in.
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学び
●2021/05/07 08:39
5users
itnext.io
While running Rails puma servers in production, we were seeing the incident that some old worker processes suddenly got stuck regardless of no change in the amount or trend of requests. I found out the root cause and reported it to the upstream. This issue still exists in Ruby 2.6.0 and can be found as far back as Ruby 2.5.0. If you just want a summary of the bug, see ruby-lang#17669. What Happene
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テクノロジー
●2021/04/19 23:43
●ruby
4users
itnext.io
Hi I am Luke and I am software developer. Since I’ve chosen a very bold title I need to elaborate a bit more on it. FYI I do think technically Flutter is a cross-platform framework. But bear with me... Since the release of Flutter 2.0, I began to see the hype going a little bit too far. Don’t…
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テクノロジー
●2021/03/11 05:02
3users
itnext.io
Edit (10th Feb 2024):It’s been ages since I wrote this blog, it’s still garnering views and people are reaching out. I will be writing a follow up blog on a product I have built, which enables users to share their live location (just like WhatsApp) for both Android and iOS and as well as stream it to your own personal web servers using a web-hook. If you’re interested in getting an early paid acce
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テクノロジー
●2021/02/26 22:25
3users
itnext.io
I like the convenience of CSS-in-JS especially being able to co-locate styling and improving ease-of-use when using 3rd party components. But I’m not convinced on a few of things: That hashed classes are a “must have” instead of namespaced ones, and could even be a hindrance when needing to select elements from 3rd party components, marketing, and testing suites.That using logic in your CSS is nec
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テクノロジー
●2020/12/23 04:03
●performance
7users
itnext.io
I have spent almost the entire last decade in a fairly specialized product company, building high performance I/O systems. I had the opportunity to see storage technology evolve rapidly and decisively. Talking about storage and its developments felt like preaching to the choir. This year, I have switched jobs. Being at a larger company with engineers from multiple backgrounds I was taken by surpri
●
テクノロジー
●2020/11/27 08:19
●OS
●Linux
5users
itnext.io
IntroductionESG research found that 43% of respondents considering cloud as their primary deployment for Apache Spark. And it makes a lot of sense because the cloud provides scalability, reliability, availability, and massive economies of scale. Another strong selling point of cloud deployment is a low barrier of entry in the form of managed services. Each one of the ‘Big Three’ cloud providers co
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テクノロジー
●2020/10/05 12:48
●spark
●aws
3users
itnext.io
Updated: 7/29/2020 Who wants to run an OKD 4 SNC on their Windows 10 workstation? Me for one. This is guide is geared towards people who want to try ODK 4 on an existing workstation (minimum 24GB of RAM) without purchasing additional hardware like a NUC or home lab server. OpenShift (OCP) has CodeReady Containers where you can set up an OpenShift cluster on your local machine for development and t
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テクノロジー
●2020/07/28 09:43
●windows
3users
itnext.io
The Cluster API (CAPI) is a Kubernetes project that brings declarative, Kubernetes-style APIs to cluster creation. CAPI does this by using Custom Resource Definitions to extend the API exposed by the Kubernetes API Server, allowing users to create new resources such as Clusters (representing a Kubernetes cluster) and Machines (representing the machines that make up the Nodes that form the cluster)
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テクノロジー
●2020/07/25 09:57
●Docker
●techfeed
●あとで読む
5users
itnext.io
Includes Metal support for faster iOS performance, new Material components, new Network tracking tooling and more! It comes with lots of performance improvements, new Widgets, and more. But, besides all that, this version of Flutter also got one small, but very useful feature: compile-time variables. Yes, you heard me, starting from 1.17 you can build your Android and iOS application with predefin
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テクノロジー
●2020/06/16 07:03
●Flutter
3users
itnext.io
Demonstration of a highly scalable microservice application with asynchronous communication using Kafka
●
テクノロジー
●2020/06/06 10:24
●Istio
20users
itnext.io
Webpack is somewhat of a black box for most developers. Tools like “create-react-app” abstract most of the bundler functionality away. I did some research into it and began building my own light-weight web bundler to understand more about what it entails. This is part of my “under-the-hood of” series: Type systems (e.g. TypeScript)
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テクノロジー
●2020/04/13 01:03
●JavaScript
●あとで読む
●article
●video
3users
itnext.io
https://miro.medium.com/max/1021/1*MrEp6Y0l1B7Ixt5mfE3fWA.pngHola people!!! 🥑 It’s been a while since I have written a blog and now since most of us are working from home, the time that used to go in commute is now saved and I thought why not utilize this time and write about my recent experience of fixing a security vulnerability.
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テクノロジー
●2020/03/28 03:10
●npm
●セキュリティ
●security
4users
itnext.io
Webpack 5 Module Federation: A game-changer in JavaScript architecture Module federation allows a JavaScript application to dynamically run code from another bundle/build, on client and server.
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テクノロジー
●2020/03/04 03:54
●article
3users
itnext.io
It’s really easy to get a Kubernetes cluster online as almost each cloud provider offers its own solution (Google GKE, Amazon EKS, Microsoft AKS, DigitalOcean DOKS, Civo Kubernetes, …). As sometimes we just want to play locally this post lists some of the main options available for this usage.
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テクノロジー
●2020/01/30 12:25
3users
itnext.io
In the world of web development, we can list two main design patterns for the web apps: multi-page application (MPA) and single-page application (SPA). In this blog post, I will focus on the integration of react library into a multi page app. The classical architecture that requires reloading of a web-page in order to load or send data from/to server in the user’s browser. What I’m planning to do
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テクノロジー
●2020/01/23 22:10
●React
●article
3users
itnext.io
tl;drThere is a huge discussion about Server-Side Rendering these days. Everyone says It’s hard to implement and maintain. I have created a React News web application with 3 different approaches to be able to understand performance and implementation differences between each other. I wanted to make this application as close as possible to a real-world use case. I used; React, React-Router, Redux,
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世の中
●2020/01/16 14:39
3users
itnext.io
Golang has many advantages, its popularity explains this. But error handling in Go 1 is not very efficient , we have to write many verbose , inconvenient codes in daily development. There’re several open source solutions to tackle this. Meanwhile, the Go team is improving this from both the language and the standard library aspects.
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テクノロジー
●2020/01/04 01:59
●あとで読む
5users
itnext.io
Micro Frontend Architecture: Import chunks from another Webpack bundle at runtime Importing chunks from other Webpack bundles at runtime, using them as if there were always there — interleaved applications
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テクノロジー
●2019/12/01 12:31
●techfeed
●JavaScript
●あとで読む
3users
itnext.io
Quickly create Javascript and Markdown demos. Import any package on npm. The idea is to create a custom hook that receives the initial data, validations, and validators. And returns a set of variables and functions as tools for forms This is the final Hook lets see how it works and how we could use it to validate a form The general idea here is, the hook returns an array with 2 parts of the state
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テクノロジー
●2019/10/20 23:39
16users
itnext.io
One of the things I love the most about Kelsey Hightower’s Kubernetes The Hard Way guide— other than it just works (even on AWS!)—is that it keeps networking clean and simple; a perfect opportunity to understand what the role of the Container Network Interface (CNI) is for example. Having said that, Kubernetes networking is not really very intuitive, especially for newcomers… and do not forget “th
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テクノロジー
●2019/10/16 19:41
●kubernetes
●あとで読む
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