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Codeminer42’s Engineering Blog

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Category: Posts

Exploring the Lean4 Language

Exploring the Lean4 Language

Sofia Rodriguesby Sofia RodriguesOctober 11, 2023April 11, 2024

As a tech enthusiast, I’ve always been interested in new concepts that new programming languages can provide us. My curiosity has often taken me into …

The Path of Open Source: What I learned

The Path of Open Source: What I learned

Daniel Brasilby Daniel BrasilOctober 4, 2023April 11, 2024

I began my career as a trainee software developer at Codeminer 42. Throughout a three-month period, I studied web development, specifically focusing on Ruby on …

Lean4: Crafting in an Uncharted Territory Overcoming Challenges and Innovating

Lean4: Crafting in an Uncharted Territory

Overcoming Challenges and Innovating

Sofia Rodriguesby Sofia RodriguesSeptember 27, 2023April 11, 2024

Armed with an unknown weapon called Lean4, I ventured into an arena known as ‘Rinha de Backends‘, a challenge to determine (for fun) the fastest …

Ruby and the State of Artificial Intelligence Investigating the Tools and Resources for Artificial Intelligence and Machine Learning around the Ruby Ecosystem

Ruby and the State of Artificial Intelligence

Investigating the Tools and Resources for Artificial Intelligence and Machine Learning around the Ruby Ecosystem

Luan Gonçalvesby Luan GonçalvesSeptember 5, 2023January 8, 2026

Hello, fellow readers! It’s been a while since I showed up here, and today, we’ll talk about a hot topic: Artificial Intelligence (AI) and Machine …

Exploring the ChatGPT API An Introductory Guide on Empowering Applications through AI

Exploring the ChatGPT API

An Introductory Guide on Empowering Applications through AI

Leonardo Santiagoby Leonardo SantiagoAugust 31, 2023January 8, 2026

A Generative Pre-trained Transformer, or simply, GPT, is one specific model of a kind known as Large Language Models (LLMs). LLMs are a subset of …

The Right Form of Forming Forms How to provide a great user experience and validate forms on the frontend.

The Right Form of Forming Forms

How to provide a great user experience and validate forms on the frontend.

João Victor Voglerby João Victor VoglerAugust 16, 2023March 14, 2024

Imagine you just got paid and can finally buy the laptop you have been dreaming about for months. Since it is expensive (and you are …

Modeling data with DynamoDB

Modeling data with DynamoDB

Gabriel Quaresmaby Gabriel QuaresmaJuly 26, 2023October 17, 2023

In this article, we will perform the modeling and queries of a simple e-commerce domain using the NoSQL database, DynamoDB, and address its main concepts. …

Be cool. Don’t use float/double for storing monetary values A tour on how hardware deals with numbers and math

Be cool. Don’t use float/double for storing monetary values

A tour on how hardware deals with numbers and math

Edy Silvaby Edy SilvaJuly 12, 2023September 4, 2024

What you’re looking for You saw that joke telling that JavaScript doesn’t know math because of the expression below. 0.1 + 0.2 === 0.3 This …

Enhancing User Experience with Dynamic iFrame Height Creating a cohesive user experience without visible indications of external sourcing.

Enhancing User Experience with Dynamic iFrame Height

Creating a cohesive user experience without visible indications of external sourcing.

Mateus Wildingby Mateus WildingJune 28, 2023April 11, 2024

In the realm of web development, iframes have long been an essential tool for integrating content from one website into another. Whether it’s by embedding …

Understanding Front End Under the Hood Unraveling the intricacies of web development, DOM manipulation, and JavaScript interactivity.

Understanding Front End Under the Hood

Unraveling the intricacies of web development, DOM manipulation, and JavaScript interactivity.

Marcio Flavioby Marcio FlavioJune 21, 2023June 20, 2023

In web development, we typically have two main goals: displaying the desired content to users and enabling them to interact with it by modifying the …

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