Hackernoon

In modern Angular and microservices-based applications, managing data consistency and reliability is a persistent challenge. When developing the frontend with Angular/React, we are often at the mercy of backend API changes, partial data responses, and unpredictable user input. Despite advances in TypeScript’s strong typing, many teams still suffer from runtime errors like “Cannot read property … Read more

If you’re thinking about building your own exchange, here’s what you need to know before you write a single line of code. :::tip Vested Interest Disclosure: I work at a company with a Decentralized Exchange, therefore, I have more experience with that aspect of the article than with Centralized Exchanges. The views expressed here are … Read more

Heyo, Hackers! Welcome to another edition of HackerNoon Company of the Week: our weekly shoutout to companies making waves in the world of tech and digital innovation. This week, we’re excited to highlight a company at the forefront of data-driven marketing and customer experience: mParticle. Meet mParticle Founded in 2013, mParticle is a customer data … Read more

How are you, hacker? 🪐 What’s happening in tech today, May 5, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Japanese balloon bomb in 1945, and we present you with these top quality stories. From GreetHammer: Your Ultimate Outlook Macro for Automated Email Greetings to Trump as Pope; … Read more

The Rust project is currently working towards a slate of 40 project goals, with 3 of them designated as Flagship Goals. This post provides selected updates on our progress towards these goals (or, in some cases, lack thereof). The full details for any particular goal are available in its associated tracking issue on the rust-project-goals … Read more

Congratulations to Dealita, Startup of the Year 2024 in Riga, Latvia! Dealita manages investment deals The Latvian startup Dealita.ai uses artificial intelligence to automate one of the most time-consuming stages of the investment process – data collection and processing. This AI solution automates the handling of incoming deals, performs initial filtering and evaluation based on specific criteria, … Read more

The past two years were dominated by “ChatGPT-for-X” pitches and billion-dollar application rounds. Yet, somewhere between rising GPU spot prices and shrinking retention curves, investors began to realise that the defensible margins in AI sit far below the prompt window. Evidence of the rotation is now unmistakable. Crunchbase reports that while global venture dollars to … Read more

We’re honored to be named Startup of the Year in Kuwait City! Big thanks to HackerNoon for celebrating our journey at Kuwait Mart. Tell us about your startup Kuwait Mart is a homegrown e-commerce platform built to serve customers across Kuwait with speed, trust, and simplicity. We officially launched on April 22, 2025, after months … Read more

As the blockchain industry matures, the critical question is no longer just about decentralization or innovation, it’s about sustainability. MEXC Ventures, the investment and incubation arm of leading exchange MEXC, is answering that challenge with IgniteX, an initiative designed to empower the next generation of Web3 builders. We spoke with Tracy Jin, a key figure … Read more

Are you a dynamic leader aiming to elevate your organization beyond just survival to a thriving, energetic powerhouse? It’s time to shift gears—from merely responding to crises to proactively preventing them. UzairaAdvisory’s Preventive Healthcare Seminar is precisely the forward-thinking solution your organization needs, creating a solid foundation for enhanced productivity, lasting employee wellness, and sustained … Read more

In today’s digital arena, blockchain technology has evolved from an obscure concept behind Bitcoin to a revolutionary approach to data management, trust, and application development. This article will take you on a journey from understanding the fundamentals of blockchain to the practical aspects of building decentralized applications (dApps) and the crucial role that node providers … Read more

How are you, hacker? 🪐Want to know what’s trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. ## How My Development Team Utilized GitHub Copilot & AI Tools to Boost Productivity by Vimaldeep Singh By @rsystems [ 4 Min … Read more

As a web developer, having access to a persistent, virtual machine in the cloud is often useful for testing and development. While many cloud-based providers offer limited free tiers (e.g. AWS, GCP, or Azure), Oracle Cloud stands out by providing a true “always free” cloud VM. In this article, we’ll look into setting up Oracle … Read more

When you sit down to open your email inbox, you’re likely to have noticed a few odd messages. Perhaps some are promising you a “free iPhone,” others are warning you to “click here to win a prize,” and some will appear to be from your bank—but something doesn’t look right. These emails fall into two … Read more

As Russia is preparing to initiate the spring campaign in its ongoing war, Ukrainian soldiers and military leadership are confident that their drone forces will give the invading Russians hell. Russia’s fresh spring offensive against Ukraine “has already begun,” Commander-in-Chief Oleksandr Syrskyi stated in a recent interview. With few tangible gains in recent months, the Kremlin is … Read more

Every series needs interesting characters to be successful, and we’re not just talking about the main characters. Character development can help audiences relate better to the story, and even carry the series to new levels. In some rare cases, side characters can become a big hit with audiences, even surpassing main characters in some instances. … Read more

When Verdant, a new mining game on the Abstract blockchain, first launched, many users found themselves staring at a partially functioning interface. But a savvy group of players didn’t wait for the full dApp to be ready—they went straight to the blockchain explorer and started interacting with the smart contracts directly. This allowed them to … Read more

OK, so I promised I’d do an updated story on how my new site is doing—and it’s time to deliver! For those of you just tuning in: I’m not here to “fake it till I make it.” I’ve already built a site with a DR69 and over 60,000+ in monthly organic traffic. I walk the … Read more

The image I used as the banner for this article was created by the beautiful folks at Spire Labs. It provides a great visual overview of how different Layer 2 solutions utilize Ethereum’s infrastructure. In this article, I will be expanding on Native and Based Rollups to give you a complete picture of how these … Read more

As AI systems evolve beyond isolated functionality, the need for efficient and context-aware coordination between agents powered by Large Language Models (LLMs) is more urgent than ever. In this article, we introduce a rigorous mathematical framework, denoted as the L Function, designed to optimize how LLMs operate within Multi-Agent Systems (MAS) – dynamically, efficiently, and … Read more

Email is essential, but repetitive tasks—like addressing replies by name and adding appropriate greetings—can be tedious. Especially if your like me and send scores and scores of emails each day. Introducing GreetHammer, a handy Outlook macro compatible with Outlook 2016, 2019, and Office 365 that fully automates personalized email greetings, saving you valuable time. What … Read more

I’m building a new free tool for ResumeMaker.Online, and I think this one is more robust and has more potential than any of the other free tools I’ve made so far. That’s why I thought it would be a good idea to share the process as I go. The idea is simple: I want to help people … Read more

An AI model without a feedback loop isn’t innovation—it’s entropy in slow motion. “It worked in the demo.” That sentence haunted me for months. The first AI initiative I led was supposed to reduce 40% of our service desk tickets. We trained a model, built a slick UI, and hit our go-live deadline with a … Read more

Introduction In fast-moving software projects, documentation often struggles to keep up. Folder structures evolve, testing practices improve, coding standards shift, and tools are upgraded—usually without corresponding updates to the docs. Traditionally seen as a secondary task to be completed after coding, documentation often ends up outdated, incomplete, or inconsistent, failing to reflect the current state … Read more

Your organization deploys often, with automation at every step. Execution happens fast, and speed drives everything you do. However, each additional container in your system increases the security vulnerability area. Attackers spot security weaknesses, even if you don’t. They find gaps before you even know they exist. One misconfigured Dockerfile. One outdated base image. The … Read more

Hi, I’m Jane. I was born in Japan, now live in London, and I’m building imii.app, a startup helping immigrants integrate through AI-powered personalised support. I also run a boutique communications consultancy for startups, nonprofits, and mission-driven teams. This is my first post on HackerNoon, and I wanted to start with something honest, personal, and … Read more

The Pectra Hard Fork, set to activate on May 7, 2025, is Ethereum’s next major upgrade after Dencun. It brings powerful improvements across three main areas: Smarter Accounts (EIP-7702): Upgrades EOAs with smart contract features like transaction batching, gas fee sponsorship, spending limits, and recovery, all without needing to switch to a contract wallet. Better … Read more

Ever been stuck talking to someone who just doesn’t get what you’re asking for? Like when you tell your friend you need a ride to the airport at 6 AM, and they start telling you about their favorite airport restaurants instead? That’s basically what programming was like before function calling. ❓ What Is Function Calling? … Read more

Function calling with strict JSON output validation ensures reliable AI responses for system integrations. By using Pydantic for type validation, JSON Schema for structural definition, and proper error handling, developers can create robust applications that depend on consistent, well-formatted AI outputs, dramatically reducing the frustration typically experienced when parsing AI-generated data. ❓ What’s the Problem … Read more

n Do you know that 70% of buyers claimed the degree of customer service they got affected their decision to buy a product (Zendesk)? Imagine a brand that not only sells to you but also speaks to you, shares your values, listens when you speak, and stands by its words. Discounts can let one in; … Read more