Understanding HashMap: Constant-Time Lookup

From Command-Line Flags to tsconfig 🔧💻 Join Anjana Vakil to learn how to move from JavaScript to TypeScript by adding types, interfaces, and generics, configuring the compiler, and converting client and server code for safer, more predictable projects. https://lnkd.in/g9ESpW-z #WebDev #Programming #Coding #LearnToCode #TypeScript #JavaScript

Introducing envx — a secure environment variable manager that prevents secret leaks. A CLI tool that stores secrets outside your repository, so they never end up in Git. Key features: - Secrets stored in ~/.envx/ (outside your repo) - Automatic Git protection - Multi-environment support (dev/staging/prod) - Language-agnostic (Node.js, Python, Go, etc.) Built with Bun. Open source. 🔗 https://lnkd.in/gEinrfRt #Security #DevOps #OpenSource #JavaScript #WebDevelopment

🧪 Playwright: A modern end-to-end testing framework by Microsoft that supports multiple browsers (Chromium, Firefox, WebKit) and multiple languages (JS, Python, C#, Java). It offers auto-waiting, fast execution, mobile emulation, and visual comparisons—making it one of the most reliable automation tools today. #AIinQA #QualityEngineering #TestAutomation

Iterative Postorder Traversal of a Binary Tree in TypeScript using one stack 👉 Day 70 / Day 93 👈 19 🔥 This function performs a postorder traversal (Left → Right → Root) of a binary tree using an iterative approach with a stack. #TypeScript #JavaScript #Coding #Programming #DataStructures #Algorithms #BinaryTree #TreeTraversal #PostorderTraversal #TechCommunity #CodeNewbie #SoftwareEngineering #Developer

"Exploring responsive web design with semantic color palettes. A unified system of primary, secondary, success, info, warning, danger and more.... ensures accessibility and consistency across devices. Here’s a quick HTML & CSS demo I built!" #ccbp #NxtWave #reactjs #python #coding #programming

Two Sum II (Sorted Array) — Optimal Two Pointer Approach 👉 Day 52 / Day 93 👈 Instead of using a hash map, we can apply the Two Pointer Technique to achieve: ✅ O(n) Time Complexity ✅ O(1) Extra Space (Constant Space) Input: numbers = [2, 7, 11, 15], target = 9 Steps: Start with i = 0 (2), j = 3 (15) → sum = 17 ❌ Move j left → j = 1 (7) Now sum = 2 + 7 = 9 ✅ Output: [1, 2] (1-indexed) #JavaScript #TypeScript #DSA #LeetCode #TwoPointers #Arrays #ProblemSolving #CodingInterview #FrontendDeveloper #SoftwareDeveloper #CleanCode #Algorithms #100DaysOfCode #Developers #Programming

Hello! Today I was revisiting a simple concept in javascript: Generating randoms numbers with the web language. The image below, shows how math.random is used to make random numbers, while math.floor is used to round the numbers. a simple code like this, is a great reminder of the fundamentals of the language ^_^ #JavaScript #Programming #WebDevelopment #LearningToCode #CodingJourney #TechSkills

Learning Update: Loops, Functions & Arrays Explored the core programming concepts that form the backbone of any application: 🔁 Loops – Execute code repeatedly and reduce redundancy 🧩 Functions – Reusable blocks that improve structure and readability 📦 Arrays – Store and manage multiple values efficiently Building strong fundamentals to write clean and scalable code 🚀 #LearningJourney #ProgrammingBasics #JavaScript #WebDevelopment #StudentDeveloper

Playwright Python and Pytest for Web Automation Testing ... • Set up and configure Playwright in Python environments for web test automation. • Master web locators and user actions to create precise and comprehensive test cases. • Leverage Pytest fixtures and parametrize testing for efficient suite management. • Integrate automation tests with CI pipelines using tools like GitHub Actions. • Apply advanced testing strategies, including handling APIs, network events, and BDD simulations.

 Find the First Occurrence of a String in Another String 👉 Day 54 / Day 93 👈 👉 Find the first index of a substring (needle) inside another string (haystack). If it doesn’t exist, return -1. 1️⃣ Slide a window of size needle.length across haystack. 2️⃣ Compare characters one by one. 3️⃣ If all characters match → return the starting index. 4️⃣ If no match is found after full traversal → return -1. haystack = "hello" needle  = "ll" ✔ Match found starting at index 2 ➡️ Output: 2 Time: O(m × n) Space: O(1) (constant extra space) #JavaScript #TypeScript #DSA #Strings #CodingInterview #ProblemSolving #Algorithms #FrontendDeveloper #WebDevelopment #CleanCode #100DaysOfCode #LeetCode #Programming #Developers #CodeNewbie