--- title: "#counter articles | Hashnode" description: "Explore 8 articles tagged #counter on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/counter" --- Tag # #counter 8 posts · 0 followers [Shriya](https://hashnode.com/@ShriyaSingh) · [Jun 25](https://hashnode.com/posts/building-a-secure-counter/6a3d215a07175e9851b2db28) ### [Building A Secure Counter](https://genesisjournal.hashnode.dev/building-a-secure-counter?utm_source=hashnode&utm_medium=feed) How To Turn a Vulnerable Smart Contract into Production-Ready Code(offcourse Counter thhh) The Beginning of My Solana Adventure When I first started learning Solana blockchain development, I thought b 8 min read · [genesisjournal.hashnode.dev](https://genesisjournal.hashnode.dev/building-a-secure-counter?utm_source=hashnode&utm_medium=feed) [Shahwar Alam Naqvi](https://hashnode.com/@shahwar01) · [Dec 12, 2025](https://hashnode.com/posts/leetcode-valid-anagram/693c01716140cd251c7ba96b) ### [LeetCode: Valid Anagram](https://is-power-of-two.hashnode.dev/leetcode-valid-anagram?utm_source=hashnode&utm_medium=feed) Problem: https://leetcode.com/problems/valid-anagram/description/ Code: class Solution: def isAnagram(self, s: str, t: str) -> bool: return Counter(s) == Counter(t) # class Solution: # def isAnagram(self, s: str, t: str) -> bool: # ... 2 min read · [is-power-of-two.hashnode.dev](https://is-power-of-two.hashnode.dev/leetcode-valid-anagram?utm_source=hashnode&utm_medium=feed) [ampheo](https://hashnode.com/@ampheo) · [Dec 9, 2025](https://hashnode.com/posts/how-does-a-microcontroller-counter-work/6937f33de7eeab7dd41e0f9f) ### [How does a microcontroller counter work?](https://ampheoelectronic.hashnode.dev/how-does-a-microcontroller-counter-work?utm_source=hashnode&utm_medium=feed) A “microcontroller counter” is usually just a timer/counter peripheral inside the MCU that automatically counts clock pulses or external events for you – so you don’t have to do it in software loops. Let’s break it down in plain language. 1. The bas... 4 min read · [ampheoelectronic.hashnode.dev](https://ampheoelectronic.hashnode.dev/how-does-a-microcontroller-counter-work?utm_source=hashnode&utm_medium=feed) [Akash Bijwe](https://hashnode.com/@akashbijwe) · [Dec 4, 2025](https://hashnode.com/posts/letter-counter-because-sometimes-you-just-need-to-know-exactly-how-many-characters-youre-dealing-with/6931975e8534c62a0ab51928) ### [Letter Counter: Because Sometimes You Just Need to Know Exactly How Many Characters You're Dealing With ✏️🔢](https://devutilx.hashnode.dev/letter-counter-because-sometimes-you-just-need-to-know-exactly-how-many-characters-youre-dealing-with?utm_source=hashnode&utm_medium=feed) LetterCounter from DevUtilX.com, jus Paste text → instantly see how many letters are inside it. No overthinking. No regex. No “length - spaces” brain math. 2 min read · [devutilx.hashnode.dev](https://devutilx.hashnode.dev/letter-counter-because-sometimes-you-just-need-to-know-exactly-how-many-characters-youre-dealing-with?utm_source=hashnode&utm_medium=feed) [Roberto España](https://hashnode.com/@robertoespana) · [Oct 14, 2025](https://hashnode.com/posts/reforzando-mis-conocimientos-en-python-con-3-mini-proyectos-practicos/68ee6dbda6879c5f7d81d6bb) ### [Reforzando mis conocimientos en Python con 3 mini proyectos prácticos](https://robertoespana.hashnode.dev/reforzando-mis-conocimientos-en-python-con-3-mini-proyectos-practicos?utm_source=hashnode&utm_medium=feed) Usando requests, csv, re, Counter y matplotlib para analizar endpoints, logs y métricas. 7 min read · [robertoespana.hashnode.dev](https://robertoespana.hashnode.dev/reforzando-mis-conocimientos-en-python-con-3-mini-proyectos-practicos?utm_source=hashnode&utm_medium=feed) [Nitin Saini](https://hashnode.com/@saininitin) · [Aug 6, 2025](https://hashnode.com/posts/front-end-machine-coding-series-5-building-a-lightweight-react-timer/68936a9e691ffafba5d45e46) ### [Front-end Machine Coding Series #5: Building a Lightweight React Timer](https://nitin-saini.hashnode.dev/front-end-machine-coding-series-5-building-a-lightweight-react-timer?utm_source=hashnode&utm_medium=feed) Learn how to build a smart counter in React using only useRef. Includes pause, reset, and start buttons all without re-renders... 2 min read · [nitin-saini.hashnode.dev](https://nitin-saini.hashnode.dev/front-end-machine-coding-series-5-building-a-lightweight-react-timer?utm_source=hashnode&utm_medium=feed) [ASHUTOSH KUSHWAHA](https://hashnode.com/@blueewhittee) · [Dec 14, 2023](https://hashnode.com/posts/making-a-counter-and-understanding-async-flow-through-it/657b2cf243cbffcc1f19583a) ### [Making a counter and Understanding async flow through it](https://blueewhitee.hashnode.dev/making-a-counter-and-understanding-async-flow-through-it?utm_source=hashnode&utm_medium=feed) What is a counter? Counter is simply counting of numbers or time recursively . here we are trying to make a representation of second hand of a clock and thus understand async flow via it. javascript is an asynchronous language but at the same time it... 1 min read · [blueewhitee.hashnode.dev](https://blueewhitee.hashnode.dev/making-a-counter-and-understanding-async-flow-through-it?utm_source=hashnode&utm_medium=feed)