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PPPayal Porwalcodeswithpayal.hashnode.devFeb 25 · 6 min read

Day 36 – Money Tracker (Filtering, Sorting, Pagination, Validation, Frontend)

By the end of Day 36, students will be able to: ✅ Filter data (income / expense)✅ Sort data (amount, latest first)✅ Use pagination (page & limit)✅ Validate input properly✅ Connect frontend (HTML/CSS/J

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PPPayal Porwalcodeswithpayal.hashnode.devFeb 24 · 5 min read

Master the Top SQL Queries: Clear Explanations + Practical Examples

1️⃣ SELECT (Basic Data Fetching) 🔹 What it does: Fetch data from a table. 🔹 Syntax: SELECT column1, column2 FROM table_name; 🔹 Example: SELECT name, salary FROM employees; 🔹 Use Case: Showing u

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PPPayal Porwalcodeswithpayal.hashnode.devFeb 24 · 6 min read

Day 35 – Complete CRUD with MySQL (Node.js + Express)

Mini Project Start: 💰 Money Tracker Day 35 Goal By the end of Day 35, students will be able to: ✅ Perform complete CRUD with MySQL✅ Create Update & Delete APIs✅ Handle errors properly (best practice

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NGNandkumar Gangaingangai.hashnode.devJan 16, 2025 · 2 min read

The "process" object

This article covers the use of `process.env` and `process.argv` in Node.js for handling environment variables and command-line arguments, respectively. It explains how to pass and access custom environment variables dynamically, such as setting a dif...

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NGNandkumar Gangaingangai.hashnode.devJan 16, 2025 · 2 min read

Understanding JavaScript Timers: Key Concepts and Examples

setTimeout setInterval setTimeout Used to delay the execution by given time. It accepts two arguments first one is a callback function with executable statements, second is time in milliseconds. It executes the callback only once after provided ti...

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PTPolar The Explorerlogicbricks.hashnode.devDec 27, 2024 · 4 min read

JavaScript Debounce deep dive.🚀

Implementing a debounce function is one of the most common questions for any JavaScript developer in interviews. There are numerous blogs and tutorials where people have explained the concept with images and simplicity, but this article will aim to g...

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AAkritirisingdevelopers.devSep 28, 2024 · 2 min read

Is JavaScript interpreted or compiled language?

What is an interpreted language? These languages are executed line by line, with the interpreter reading and executing the code directly. Pros: Quick to start executing code. Easier to debug due to immediate feedback. Cons: Slower execution c...

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VUVictor Uzoagbavictoru.hashnode.devSep 14, 2024 · 6 min read

Creating a Headless Web Scraper with Playwright and Node.js

Introduction Web scraping is an essential tool for gathering data from websites, automating processes, and interacting with dynamic content. By using web scraping, you can extract data such as prices, news, and social media trends, which can be analy...

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VUVictor Uzoagbavictoru.hashnode.devSep 8, 2024 · 5 min read

Best Practices for Securing Node.js Applications in Production

Node.js, a popular runtime for building server-side applications, brings high performance and scalability to web development. However, its flexibility can lead to security vulnerabilities if not properly managed. When deploying Node.js applications i...

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VUVictor Uzoagbavictoru.hashnode.devAug 30, 2024 · 5 min read

Profiling Tools and Techniques for Node.js Applications

Node.js is a powerful platform for building server-side applications due to its asynchronous, non-blocking architecture. However, as applications scale, performance bottlenecks can arise, leading to increased latency and degraded user experience. Pro...

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Trending tags this week

Day 36 – Money Tracker (Filtering, Sorting, Pagination, Validation, Frontend)

Master the Top SQL Queries: Clear Explanations + Practical Examples

Day 35 – Complete CRUD with MySQL (Node.js + Express)

The "process" object

Understanding JavaScript Timers: Key Concepts and Examples

JavaScript Debounce deep dive.🚀

Is JavaScript interpreted or compiled language?

Creating a Headless Web Scraper with Playwright and Node.js

Best Practices for Securing Node.js Applications in Production

Profiling Tools and Techniques for Node.js Applications