JavaScript｜Sample
Javascript
- Hardware — Video / Image
-
Reading JAN Codes in JavaScript｜Barcode Scanning with quagga.js and Accuracy Improvements
This page explains how to read JAN barcodes from a webcam using JavaScript and quagga.js. It includes a simple accuracy‑improvement method that confirms a scan only when the same value is detected three times in a row, along with practical examples for camera setup, canvas handling, and decodeSingle processing.
-
Reading Code39 Barcodes from Camera Video on a Website (Code39 Barcode Reader)
This page demonstrates how to use JavaScript to read Code39 barcodes in real time from a camera stream on a website, converting them into text using quaggaJS.
-
Free Guide: How to Build a QR Code Reader in JavaScript (Web Camera Supported)
Learn how to scan QR codes in real time on a website using JavaScript and jsQR. This guide explains how to implement a QR code reader that works with camera input on iPhone (Safari), Chrome, and other browsers.