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Buy Me a Coffee☕ *Memos: First of all, there are 4 kinds of variables from the viewpoint of third() as shown below: A global variable is the variable out of any functions and classes. A non-local variable is the variable within outer functions. A local variable is the variable which is within its function. A…
Summary There are two common ways to build screens. Imperative code tells the computer exactly what to do, step by step. Declarative code describes what the screen should look like for the current state, and the framework updates it for you. Flutter encourages the declarative way. This post keeps things simple, shows tiny examples, and…
2025-06-29 node24 にしてpnpm iしたら以下の warning (node:28380) [DEP0169] DeprecationWarning: `url.parse()` behavior is not standardized and prone to errors that have security implications. Use the WHATWG URL API instead. CVEs are not issued for `url.parse()` vulnerabilities. (Use `node –trace-deprecation …` to show where the warning was created) Enter fullscreen mode Exit fullscreen mode 気にしなくてよさそう Source link
Qt is a cross-platform C++ framework for developing applications with graphical user interfaces (GUIs). In this tutorial, you’ll learn how to create a robust, production-ready barcode scanner application using Qt 6, Microsoft Visual C++ (MSVC), and the Dynamsoft Barcode Reader C++ SDK on Windows. This tutorial covers everything from environment setup to implementing advanced features…
An enumerated field has only several values. The format of filtering condition specified on an enumerated field (f) can be f =v1 or f=v2 or…, f !=v1 and f !=v2 and…, in or not in. The database compares f with n values. When the data table is large, there is a great number of comparisons,…
How a simple shift in client portal design philosophy transformed agency-client relationships and delivered measurable retention results Imagine this situation: Your client opens their laptop at 11 PM on a Sunday, desperately searching for the latest project updates. Instead of digging through endless email threads or waiting until Monday morning for a status call, they…
Enjoyed this article? You’ll find more like it on my blog — Taverne Tech! In This Article DevOps: When Sworn Enemies Become Best Friends The Four Magical Pillars of DevOps (Harry Potter Approved) Your First Steps in the DevOps Adventure (Survival Mode) Introduction Have you ever witnessed a fight between a developer and a system…
The SP3232EEN is a robust RS-232 transceiver that bridges TTL/CMOS logic levels and RS-232 signals. With built-in charge pump technology, ±15kV ESD protection, and automatic power-down, it is widely used in embedded devices, industrial automation, and IoT hardware.  Enter fullscreen mode Exit fullscreen mode 🔑 Key Features Operating Voltage: 3.0V – 5.5V Data…
Gut feelings are good. But data makes them stronger. As Project Managers, we often rely on our intuition to make quick calls. That’s important — but without data, intuition can feel like guesswork. Every decision we make affects the budget, the timeline, and the team. That’s why I lean on data; whether it’s through simple…
Event-driven applications aren’t new, but the patterns and discussion in the context of the cloud are hard to miss these days. It’s hard to argue with the patterns and practices because with events, I can build systems that are more reliable, available, and tolerant of fault and issues that arise both in and out of…
