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DHDaniel Hallgrenrouterinocom.hashnode.dev

How I built a visual traceroute game that turns network routes into art [AMA]

3h ago · 1 min read · The Problem Traceroute output is... boring: 1 192.168.1.1 2 10.0.0.1 3 72.14.215.85 The Solution Routerino transforms this into: Interactive world map with route visualization Badge collectio

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SMSudhanshu Mundhesudhanshu17.hashnode.dev

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Async Code in Node.js: Callbacks and Promises

1d ago · 7 min read · 1) Why Async Code Exists in Node.js (with File Reading Scenario) Imagine your program needs to read a file. This takes time. If Node.js waits for the file to fully load before doing anything else, the

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AAArnab Adhikaryaws-arnab.hashnode.dev

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Day 12: Terminal Power — Mastering the AWS CLI and SDKs

2d ago · 3 min read · We’ve built infrastructure with the Console and defined it with Code (IaC). But what about those quick tasks? Checking how many S3 buckets you have, starting an instance, or automating a small script?

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AAArnab Adhikaryaws-arnab.hashnode.dev

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Day 11: The Industry Standard — CloudFormation vs. Terraform

2d ago · 3 min read · Yesterday, we stopped clicking and started coding with AWS CloudFormation. But if you look at DevOps job descriptions today, one name stands out above almost all others: Terraform. Today, we are explo

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SMSudhanshu Mundhesudhanshu17.hashnode.dev

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String Polyfills and Common Interview Methods in JavaScript

3d ago · 10 min read · 1) What are String Methods? String methods are built-in functions provided by programming languages (like JavaScript) that help you work with and manipulate text (strings) easily. A string is basicall

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AAArnab Adhikaryaws-arnab.hashnode.dev

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Day 10: Stop Clicking, Start Coding — Introduction to AWS CloudFormation

4d ago · 2 min read · We’ve reached a massive milestone! For the past 9 days, we’ve been exploring the AWS Console. But in a professional DevOps environment, the Console is for viewing, not for building. Today, we enter th

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RRicharichak.hashnode.dev

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Context API — What It's Good For and Where It Quietly Breaks Your App

4d ago · 9 min read · Hey everyone, Richa here! 👋 Day 6. Week 2 starts today — and we're going straight into the thing that causes the most confusion about React state management. Context API. I've seen it used as a glob

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SMSudhanshu Mundhesudhanshu17.hashnode.dev

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The new Keyword in JavaScript

4d ago · 6 min read · 1) What the new Keyword Does In JavaScript, the new keyword is used to create an object from a constructor function. It helps set up the object automatically and links it to the constructor. When new

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SMSudhanshu Mundhesudhanshu17.hashnode.dev

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Callbacks in JavaScript: Why They Exist

4d ago · 7 min read · A callback function in JavaScript is one of those ideas that looks simple at first but becomes much more meaningful once you understand why it exists and how it’s used in real situations. Callbacks ex

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SMSudhanshu Mundhesudhanshu17.hashnode.dev

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Array Flatten in JavaScript

4d ago · 7 min read · 1) What Nested Arrays Are A nested array is an array that contains one or more arrays inside it. In simple terms, it’s like an array within another array. This allows you to store more complex data st

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Trending tags this week

How I built a visual traceroute game that turns network routes into art [AMA]

Async Code in Node.js: Callbacks and Promises

Day 12: Terminal Power — Mastering the AWS CLI and SDKs

Day 11: The Industry Standard — CloudFormation vs. Terraform

String Polyfills and Common Interview Methods in JavaScript

Day 10: Stop Clicking, Start Coding — Introduction to AWS CloudFormation

Context API — What It's Good For and Where It Quietly Breaks Your App

The new Keyword in JavaScript

Callbacks in JavaScript: Why They Exist

Array Flatten in JavaScript