Apr 7 · 2 min read · In JavaScript, every Array or Object is dynamic. You can add or remove elements whenever you want. In Rust, we use Collections when we need that same flexibility. Think of Collections as Dynamic Toolboxes. While Primitives like arrays have a fixed s...
Join discussionFeb 9 · 7 min read · When solving problems in programming, one of the most common tasks is: Count how many times each element appears. This problem looks simple — but when input size becomes very large (millions or billions of elements), a naive approach can crash your...
Join discussionFeb 2 · 2 min read · Question Given an integer array nums, return true if any value appears more than once in the array, otherwise return false. Example 1 Input: nums = [1, 2, 3, 3] Output: true Example 2 Input: nums = [1, 2, 3, 4] Output: false Understanding the questio...
Join discussionDec 25, 2025 · 6 min read · Hi everyone! this is Jimmy , and this is the forth article in my series “Breaking Things with Go.” In this series, I document my journey through Jon Bodner’s Second Edition: Learning Go – An Idiomatic Approach to Real-World Go Programming and explore...
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Nov 12, 2025 · 6 min read · Let’s say you’re building an application where you need to get some data from the database to show to the user. You make a GET request to the backend and write a query there to retrieve the data from the database. Simple, right? While this is the mos...
Join discussionOct 29, 2025 · 6 min read · Após a luta contra o “Byte Fantasma” e a serialização e a deserialização manual (que rendeu algumas boas histórias), havia chegado o momento enfrentar o próximo “boss”: gerenciador de buffer. Basicamente, ele é responsável por fazer a gestão do cache...
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