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Create es-module
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‎1.hello-world/es-module.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width,initial-scale=1.0">
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<meta name="description" content="Quickly read barcodes with Dynamsoft Barcode Reader from a live camera stream.">
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<meta name="keywords" content="camera based barcode reading">
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<title>Dynamsoft Barcode Reader Sample - Hello World (Decoding via Camera)</title>
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<!--
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This sample makes use of the library hosted by the CDN jsDelivr. If you would rather use the
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library offline. Please see the guide on how to host the library:
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https://www.dynamsoft.com/barcode-reader/programming/javascript/user-guide/?ver=latest#host-the-library-yourself-recommended
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-->
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</head>
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<body>
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<h1 style="font-size: 1.5em;">Read Barcodes from a Camera</h1>
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<button id="btn-show-scanner">Show Barcode Scanner</button>
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<script type="module">
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/** LICENSE ALERT - README
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* The library requires a license to work, you use the API organizationID to tell the program where to fetch your license.
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* If the Organizaion ID is not specified, a 7-day (public) trial license will be used by default which is the case in this sample.
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* Note that network connection is required for this license to work.
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*/
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/* When using your own license, uncomment the following line and specify your Organization ID. */
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// Dynamsoft.DBR.organizationID = "YOUR-ORGANIZATION-ID";
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/* If you don't have a license yet, you can request a trial on this page: https://www.dynamsoft.com/customer/license/trialLicense?product=dbr&package=js&utm_source=samples */
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/* For more information, please refer to https://www.dynamsoft.com/license-server/docs/about/licensefaq.html?ver=latest#how-to-use-a-trackable-license. */
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/* The API "productKeys" is an alternative way to license the library, the major difference is that it does not require a network. Contact [email protected] for more information. */
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// Dynamsoft.DBR.productKeys = "YOUR-PRODUCT-KEY";
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/** LICENSE ALERT - THE END */
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import { DBR, BarcodeScanner } from 'https://cdn.jsdelivr.net/npm/[email protected]/dist/dbr.mjs';
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DBR.productKeys = "PRODUCT-KEYS";
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DBR.engineResourcePath = "https://cdn.jsdelivr.net/npm/[email protected]/dist/";
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let pScanner = null;
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document.getElementById('btn-show-scanner').addEventListener('click', async () => {
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try {
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let scanner = await (pScanner = pScanner || BarcodeScanner.createInstance());
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/*
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* onFrameRead is triggered after the library finishes reading a frame.
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* There can be one or multiple barcodes on each frame.
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*/
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scanner.onFrameRead = results => {
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console.log("Barcodes on one frame:");
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for (let result of results) {
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console.log(result.barcodeFormatString + ": " + result.barcodeText);
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}
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};
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/*
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* onUnduplicatdRead is triggered only when a 'new' barcode is found.
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* The amount of time that the library 'remembers' a barcode is defined by
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* "duplicateForgetTime" in "ScanSettings". By default it is set to 3000 ms.
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*/
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scanner.onUnduplicatedRead = (txt, result) => {
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alert(txt);
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console.log("Unique Code Found: " + result);
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}
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await scanner.show();
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} catch (ex) {
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alert(ex.message);
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throw ex;
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}
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});
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</script>
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</body>
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</html>

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