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JavaScript

53 items on 05 Oct 2026
JavaScript

Parse a TikTok Profile URL Without Keeping Tracking Parameters

People paste profile links from chats, browsers, and share sheets. Those links can carry query parameters that are irrelevant to identifying the account. A small parser should extract a handle from the profile path,…

Source: DEV JavaScript feed Evan Mercer
JavaScript

Server-render an SVG map with no map library

Showing a dot on a map usually means a vendor, an API key, and a script to load. That is a lot of machinery for a drawing. You can skip all of it. The race pages on FieldRank, a rankings site for trail runners, do: the…

Source: DEV JavaScript feed Chase Fleming
JavaScript

Labeled Boxes: How JavaScript Remembers Things

The mental model Picture your computer's memory as a huge warehouse shelf. Every time you create a variable, JavaScript grabs an empty box, sticks a name label on the front, and drops a value inside. The label is the…

Source: DEV JavaScript feed Ayekple Clemence
JavaScript

Telegram Stars payouts: the app-store cut hits the buyer, not you

Most guides on Telegram Stars monetization get one thing wrong, and it quietly wrecks your revenue planning: they treat the ~30% app-store fee as if it were deducted from the developer's Stars payout. It is not. It…

Source: DEV JavaScript feed Landstrider
JavaScript

How to Build a Pronunciation Guide App with AI Voice

Overview Ever built a language‑learning tool and realized you need a reliable, natural‑sounding voice to help users master pronunciation? Voice AI is now so accessible that you can add a full‑featured pronunciation…

Source: DEV JavaScript feed VoiceDeveloper
JavaScript AI FastAPI Python

Create an AI Voice Agent for Customer Support

Why a Voice Agent Makes Sense for Support Customer support is shifting from static FAQs to real‑time, conversational experiences. Adding a voice channel lets you: Reduce friction for users who prefer speaking over…

Source: DEV JavaScript feed VoiceDeveloper
JavaScript

PCN: a text notation for curling games, one line per shot

Shogi has kifu and chess has PGN: one move per line, readable by anyone, replayable by software, and you can diff two of them. Curling, as far as I could find, has no public notation that does the same job. World…

Source: DEV JavaScript feed Shintaro Inagaki
JavaScript

Build a Voice-Enabled Documentation Reader

Why a Voice‑Enabled Documentation Reader? Reading through API docs, onboarding guides, or internal wikis is essential, but it can also be a drain on our eyes and time. Imagine being able to listen to the same content…

Source: DEV JavaScript feed VoiceDeveloper
JavaScript

How to Handle Errors Correctly with the JavaScript Fetch API

The native fetch() API is the standard way to make HTTP requests in modern JavaScript. However, one common trap for developers is assuming fetch() automatically rejects a promise when a server returns an HTTP error code…

Source: DEV JavaScript feed Greatness
JavaScript

We Built a Free QR Code Debugger (100% Client-Side)

A tool that tests QR codes before you print them. No backend, no uploads, no login. We recently launched RahaLune QR Code Debugger — a free tool that tests QR codes before printing. It runs entirely in the browser. No…

Source: DEV JavaScript feed RahaLune QR Studio
JavaScript

Claude Code mods: but does it run Doom?

Yes ... Yes it does. The Minesweeper was the warm-up. A pane that can draw pixels and take the keyboard raises the only question the internet ever asks of a new screen, so the second game in the arcade is Doom: Freedoom…

Source: DEV JavaScript feed Gábor Mészáros
JavaScript

Verify HubSpot contacts before the next nurture email or sequence

HubSpot lists rot quietly. Form spam, a trade-show badge scan, an old CSV import, a rep who pasted "info@" into a contact record. None of it shows up until a nurture email or a sales sequence goes out and the bounces…

Source: DEV JavaScript feed james-sib

53 items available