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PlanetPython

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Daniel Roy Greenfeld: TIL: Python's defaultdict takes a factory function

Python's defaultdict takes a factory function.
It sets the default value to the specified type.
If no default value is provided, it returns zero for int.
The default value can be a dynamically generated value.

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PlanetPython

107

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Daniel Roy Greenfeld: TIL: Using hx-swap-oob with FastHTML

Daniel Roy Greenfeld explores the usage of hx-swap-oob with FastHTML in the HTMX technique.
The article highlights the implementation of the HTMX technique using the FastHTML library.
A code snippet is provided to demonstrate the usage of hx-swap-oob and other HTMX attributes.
The author suggests verifying the behavior by viewing the rendered elements in a web browser.

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PlanetPython

317

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Daniel Roy Greenfeld: Using locust for load testing

Locust is a Python library that makes it relatively straightforward to write Python tests.
The provided code example explains each section of code and demonstrates how to use locust for load testing.
The code includes a sample test site that can be used to test the locustfile.
Updates include the use of SequentialTaskSet and bug fixes in the cats.py file.

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19 Likes

Medium

127

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There’s No Such Thing As A Bad Personality — Just Bad Management

When you transition from engineer to engineering manager (EM), you shift from dealing with technical tasks to working with people. Diversity is an important consideration for your team and results. However, the most important diversity is the mix of personalities you’ll be working with. Everyone has a different personality and approach to work. The problem is when someone doesn’t understand this and fails to manage the different personalities on their team appropriately. You have to take personality into account when working with your team, especially when giving critical feedback. Everyone has different connection needs based on their personality. You need to accept personality traits as part of the people you’re working with and not take it personally. Managing different kinds of people well takes time.
As an EM, you’ll not only oversee technical tasks, but you'll also need to manage your team. This means being aware of their personalities and how they impact team dynamics. This means speaking to each side in a “language” they’ll understand. Failing to make personality management a priority means spending even more time, energy, and resources hiring and training replacements. Knowing how people’s personalities work will help you build better and healthier relationships with them. It also helps you resist the tendency to approach your team with a one-size-fits-all approach.

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7 Likes

Medium

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Java’s Stream.peek() Method Explained

The peek() method is part of Java’s Stream API, introduced in Java 8.
It allows you to see what happens at each step without altering the data itself, which is useful for debugging and logging during stream processing.
The peek() method is helpful when you need to inspect the elements flowing through a stream pipeline.
It is important to use peek() thoughtfully to keep your code clear and prevent unexpected side effects.

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Medium

194

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All about Motherboards

A motherboard is like the ultimate multi-tasker, managing and integrating various components of your computer.
Built-in features of most motherboards include Ethernet ports for wired internet connections and basic sound capabilities.
The motherboard serves as a hub for connecting components such as the CPU and peripherals.
Motherboards also support discrete devices that can be swapped out for upgrades.

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11 Likes

Medium

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React 19: Server Functions

React 19 introduces Server Functions.
The `updateName` function is imported and passed into `useActionState` to be executed on form submission.
The `updateName` function checks the length of the `name` and returns an error if it has less than 2 characters.
Server Functions in React 19 eliminate the need for manual backend communication, handling status codes, and payload parsing.

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Dev

226

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The Top TS Copy Paste Libraries for 2025

Copy-paste libraries like shadcn/ui have gained popularity.
These libraries provide customizable code and encourage expansion and customization.
They offer flexibility and make it easier to mix libraries for faster project development.
Top TS copy-paste libraries for 2025 include shadcn/ui, Vratix, Magic UI, and CuiCui.

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13 Likes

Dev

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Deep Dive into Microsoft MarkItDown

MarkItDown is a Python package developed by Microsoft, designed to convert a variety of file formats into Markdown.
It offers robust support for a wide array of file types, including Office formats, media files, web and data formats, and archives.
Using MarkItDown is straightforward with just 4 lines of code.
Hosting MarkItDown as an API can be done using platforms like FastAPI and Leapcell.

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4 Likes

Medium

266

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Can’t Code Without It: The (FREE) Tool That Boosted My Productivity by 80%

GitHub Copilot has revolutionized how the author writes code and has become an indispensable part of their workflow.
The author started using GitHub Copilot during the beta program and found it to be a game-changer.
GitHub offers free access to Copilot through their student program and recently launched a free tier for non-students.
Copilot saves time, understands the author's coding style, and boosts productivity by up to 80%.

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Javacodegeeks

246

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Reactive Programming in Java: Project Reactor vs. RxJava

Reactive programming in Java is essential for asynchronous data streams, high concurrency, and responsive user interfaces.
Project Reactor and RxJava are two popular libraries for reactive programming in Java.
RxJava is mature and widely adopted, making it a trusted choice for developers.
Project Reactor, on the other hand, is a newer library with tight integration with Spring WebFlux and a focus on backpressure handling.

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14 Likes

Medium

333

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What’s the Difference Between null and undefined in JavaScript?

In JavaScript, null and undefined both represent "empty" values, but they serve different purposes and are used in specific contexts.
undefined indicates a variable has been declared but not assigned a value, or it refers to a property that doesn’t exist on an object.
null is an explicit assignment to signify an intentional absence of any value, often used to indicate "no value" or "empty" when resetting or clearing an existing value.
Using null and undefined intentionally clarifies the code's purpose and avoids unexpected behavior.

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20 Likes

Dev

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🚀Go-ing Beyond Basics: A Beginner's Dive into Go Programming for DevOps

Go (Golang) is a programming language gaining popularity in the DevOps domain.
Key reasons to choose Go include static typing, fast compilation, built-in concurrency, and extensive libraries.
The process of setting up a Go module involves initializing it and understanding packages.
Go provides various ways to declare and manage variables, including variable declaration, data types, type inference, shorthand declaration, and default values.

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Prodevelopertutorial

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