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Arithmetic Binary Operators in Prometheus

Arithmetic binary operators in Prometheus are used to perform standard math operations on two operands, which can be scalars or vectors.
Operators include addition (+), subtraction (-), multiplication (*), division (/), remainder (%), and exponentiation (^).
These operations are defined for scalar to scalar, vector to scalar, and vector to vector (with matching labels) scenarios.
Arithmetic operators are crucial for transforming raw metrics into actionable insights in Prometheus, facilitating analysis of system metrics like memory usage, CPU load adjustments, and threshold evaluation.

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Self-Learning-Java

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Understanding Prometheus Matchers with Real Examples

Prometheus stores data in time series with metric names and labels like handler, method, code, etc.
Matchers are used to filter data in Prometheus, common matchers include Equality Matcher (=), Negative Equality Matcher (!=), Regular Expression Matcher (=~), and Negative Regex Matcher (!~).
Equality Matcher (=) checks if a label is exactly equal to a value, Negative Equality Matcher (!=) selects all time series except those where the label equals the value.
Regular Expression Matcher (=~) allows regex pattern matching, and Negative Regex Matcher (!~) excludes label values that match the regex.

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Medium

1.6k

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What is Python? Easy Guide for Beginners

Python is a popular programming language used to tell a computer what to do.
Python is flexible and used by big companies like Google, Instagram, and Netflix.
You can start learning Python for free and it's a great way to start your programming journey.
If you can write a sentence in English, you can write a program in Python.

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Medium

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These 7 Ai tools will 10x your productivity

AI stands for Artificial Intelligence, which mimics human intelligence to think, learn, and solve problems.
AI technology has made tasks easier for humans but may lead to unemployment for many.
AI tools can enhance productivity and efficiency significantly.
One such AI tool, Sci Summary, helps in summarizing complex scientific documents, saving time and energy.

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Medium

If Your Landing Page Looks Like This… You Deserve to Fail.

Many startups fail due to poorly designed landing pages that fail to engage visitors.
Common landing page mistakes include vague messaging, confusing CTAs, stock images, and complex designs.
Startup landing pages should focus on clear messaging, impactful CTAs, product visuals, and value propositions.
Avoid making the website look like every other AI startup; instead, focus on simplicity and clarity.
Include clear sections, pain-point driven copy, and pricing with a compelling CTA to improve conversion rates.
A well-designed landing page should load fast, convey key information clearly, and be optimized for mobile.
Consider using templates like Valaam for AI and SaaS startups, which are designed for conversion without unnecessary complexity.
Startups can quickly improve their website performance and engagement by optimizing their landing pages.
Focusing on a sleek, professional layout with clear visuals and compelling copy can significantly impact visitor retention and conversion rates.
Startups should prioritize fixing their landing pages to prevent losing potential customers and stand out in a competitive market.
By addressing common landing page mistakes and implementing best practices, startups can enhance their online presence and drive success.

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Nordicapis

What Is Model Context Protocol (MCP)?

Model Context Protocol (MCP) introduced by Anthropic in November 2024 has gained significant popularity in the AI ecosystem.
MCP is a protocol that enhances the functionality of AI tools like large language models (LLMs) by connecting them with APIs and data sources.
MCP servers, such as Brave Search and GitHub, enable AI tools to interact with various services and data.
MCP architecture comprises servers, clients, and hosts, facilitating communication between AI applications and external functionality.
MCP offers benefits such as up-to-date data access, enhanced security, scalability, and ease of deployment for AI-driven applications.
MCP simplifies linking services compared to traditional APIs, supports newer protocols like GraphQL, and can handle certain API management functions.
The future of MCP in AI and API development is promising, with potential for enhanced functionality, security, and ease of access to distributed services.
MCP is expected to play a crucial role in enabling AI-driven tools to access real-time information and perform various functions efficiently.
Understanding and leveraging MCP capabilities can be advantageous for developers and organizations looking to enhance their AI and API integration strategies.

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Dev

370

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Using match Ergonomically: Avoid the if-else Chains

The article discusses the importance of using match expression in Rust for writing clean, expressive, and maintainable code, highlighting its superiority over if-else chains.
It illustrates how match can simplify complex logic, making code easier to read and reducing bugs by leveraging pattern matching and match guards.
By replacing if-else statements with match, code becomes more readable, maintainable, and avoids the complexity that arises from nested conditions.
The article presents examples where match is used to categorize users by age and determine user status, showcasing its conciseness and expressiveness.
Match guards are introduced as a way to handle more nuanced conditions within match expressions, providing fine-grain control and improving code readability.
Common pitfalls like exhaustiveness, overuse of match guards, and ignoring pattern conflicts are also addressed, with tips on how to avoid them.
Key takeaways include using match for clarity, leveraging pattern matching effectively, employing match guards judiciously, and being mindful of potential pitfalls.
The article suggests further steps to master match, such as exploring enums, error handling, and destructuring to unleash the full expressive power of Rust's type system.
Embracing match not only leads to cleaner code but also enhances the expressive capabilities of Rust, encouraging developers to refactor complex if-else structures.
Readers are encouraged to share their favorite uses of match in Rust in the comments section for further discussion and exchange of ideas.

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Medium

392

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Using Python with APIs to Automate Data Collection and App Integration

Python is commonly used to work with APIs and automate data collection.
APIs are a set of rules that describe how one system can request information from another using HTTP as the transport layer and often dealing in JSON data.
When making an API call, you send a request, the server validates it, and sends back a response which can be data like current weather, stock prices, or user lists.
APIs often require authentication through methods like API keys, bearer tokens, or client credentials to access data securely.

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Dev

138

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I will convert figma to html xd to html PSD to html css responsive website

Professional frontend web designer with 2+ years of experience offering pixel-perfect conversion of design files from Figma, Adobe XD, PSD, Sketch, or Canva to responsive HTML/CSS using Tailwind CSS, Bootstrap, or custom CSS.
Services include Figma to HTML/CSS, XD to HTML/CSS, PSD to HTML/CSS, Sketch to HTML, and Canva to HTML upon request, focusing on responsive design for all devices.
Deliverables include 100% hand-coded, clean and commented code, fully responsive design for mobile, tablet, and desktop, W3C validated HTML/CSS, pixel-perfect conversion, and cross-browser compatibility.
Custom offers tailored to specific requirements are available with discussions on design, timeframe, and needs before placing an order.

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8 Likes

Dev

267

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I Built a Git Tutorial That Uses Branches as Learning Modules (And It's Going Viral) 🔥

A developer created a Git tutorial using branches as learning modules, receiving positive feedback for its unique approach.
The tutorial repository features branches dedicated to mastering different Git concepts like basics, branching, collaboration, and advanced techniques.
Each branch includes practical examples, exercises, common mistakes, pro tips, and a comprehensive cheatsheet.
Developers using the tutorial reported increased confidence in code reviews, faster development workflows, better collaboration, and improved problem-solving skills.

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16 Likes

Medium

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Useful PHP String Functions

strlen() function is useful for checking the length of a string, often used for validation purposes.
strtoupper() and strtolower() functions convert strings to uppercase and lowercase respectively to standardize user input.
trim() function removes extra spaces from the start and end of a string, ensuring data cleanliness.
substr() function helps extract specific parts of a string, useful for displaying limited characters.

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Javacodegeeks

331

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Integrating AI Autocomplete in React with OpenAI

Integrating AI Autocomplete in React with OpenAI has become simple with the latest evolution.
OpenAI's language models offer dynamic suggestions beyond traditional autocomplete methods.
The guide covers setting up a React component for real-time autocomplete with efficient state management.
A React app is scaffolded and an AutocompleteInput component is created to handle user input.
A backend server using Express is set up to proxy OpenAI requests, ensuring security by not exposing API keys.
User input is sent to the backend, which communicates with OpenAI to fetch autocomplete suggestions, creating a seamless flow.
Real-time suggestions, debounce API calls, UX enhancements, and future integration possibilities are also discussed in the article.
The combination of OpenAI intelligence with React interactivity allows for building advanced autocomplete systems.
Cost, usage quotas, and optimization strategies are mentioned to effectively manage AI autocomplete implementation.
The article provides references, useful links, and encourages readers to explore further development possibilities.

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19 Likes

Medium

259

Ismoil Rahmonov: The Mobilographer & Developer Behind Central Asia’s Smartest Cargo Bot

Ismoil Rahmonov, known as the Mobilographer & Developer, shares cinematic videos and mobile editing tips on his Instagram account @rahmonov.me.
His content on Instagram inspires young creatives in Central Asia to explore filmmaking and editing, emphasizing a mobile-first approach.
In April 2025, Ismoil launched @cjcargotj_bot, a smart Telegram bot designed for CJCARGO, a cargo company facilitating shipping from China to Tajikistan.
The bot supports multiple languages, real-time tracking via China Post, and currently serves over 500 users. Ismoil stands out by combining tech skills with creative content creation.

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15 Likes

Dev

3.8k

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Wordpress development - creating a shortcode with parameters

Shortcodes in Wordpress allow embedding PHP code snippets into posts or pages.
This tutorial explains creating a shortcode in Wordpress to render a customizable table.
The process involves handling parameters, formatting them, overriding default values, and generating HTML markup for the table.
By following the steps outlined, users can create custom shortcodes for dynamic content display on their Wordpress sites.

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9 Likes

Dev

232

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If You’re Trying Hard But Getting No Results — This Is What Helps Me

Focus on identifying and fixing the main obstacle instead of trying everything at once to see significant progress.
The principle of finding and removing the biggest constraint first comes from the book 'The Goal' by Eliyahu Goldratt, and it can be applied in various areas.
In any system, there exists one bottleneck that limits results, whether it's internal (process or team) or external (market or resources). Removing this bottleneck is crucial for success.
This approach differs from setting priorities based on feelings by providing a clear focus on where to act for the most significant impact, making it ideal for situations with limited resources and the need for fast results.

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