# Dynamsoft JavaScript Barcode SDK
Version 6.4.1.1
The repository aims to help developers get familiar with [Dynamsoft JavaScript Barcode SDK](https://www.dynamsoft.com/Products/barcode-recognition-javascript.aspx).
This SDK supports decoding **1D**, **PDF417**, **QR**, **DataMatrix**, and **Aztec**.
The supported data sources include `Blob`, `HTMLImageElement`, `HTMLVideoElement`, URL and more.
The `LocalizationResult`(like [C# LocalizationResult](https://www.dynamsoft.com/help/Barcode-Reader/class_dynamsoft_1_1_barcode_1_1_localization_result.html)) can be found in decoding results.
If you want the `nodejs` version, please visit [dbr webassembly](https://github.com/dynamsoft-dbr/webassembly).
## Online Demo
[Online Demo in Github (6.4.1.1)](https://htmlpreview.github.io/?https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/examples/decodeVideoWithSettings/barcode_reader_javascript.html)
[Online Demo in Dynamsoft (6.4.1.1)](https://demo.dynamsoft.com/dbr_wasm/barcode_reader_javascript.html)
## Browser Compatibility
Firefox preforms the best in both desktop and mobile.
| Browser | Version |
|-|-|
| Chrome | v57+ |
| Firefox | v52+ |
| Edge | v16+ |
| Safari* | v11+ |
| IE | not supported |
WebAssembly compiles really slow in Safari for iOS accroding to our tests.
## Documentation
[Dynamsoft Barcode Reader JavaScript Edition Manual (6.4.1.1)](https://www.dynamsoft.com/help/Barcode-Reader-wasm/index.html)
[Guide (6.4.1.1)](https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/documents/guide-original.md)
[API Reference (6.4.1.1)](https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/documents/api-original.md)
## Hello World Sample
Copy the following code into an HTML file and run it in a web browser.
```html
loading...
```
## Change log
### 6.4.1.1
Fixed a memory leak related to `mTimeout` in `RuntimeSettings`.
### 6.4.1.0
Built Dynamsoft Barcode Reader 6.4.1 to JS(WebAssembly) version.
Combined the normal and the mobile version into one.
### 6.3.0.2
Added built-in Worker support.
```js
// The default value is false. By setting this value to true to decode in another thread, therefore UI wouldn't get stuck.
dynamsoft.dbrEnv.bUseWorker = true;
```
### 6.3.0.1
Set `dbr-.js`(stable) as the main branch.
Added `dbr-.mobile.js`(smaller, compiles quicker, requires less memory, but not as stable) for mobile Safari.
### 6.3.0
Built Dynamsoft Barcode Reader 6.3.0 to JS(WebAssembly) version.
## Contact Us
If there is any questions, please feel free to contact .
[Online Demo in Github (6.4.1.1)](https://htmlpreview.github.io/?https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/examples/decodeVideoWithSettings/barcode_reader_javascript.html)
[Online Demo in Dynamsoft (6.4.1.1)](https://demo.dynamsoft.com/dbr_wasm/barcode_reader_javascript.html)
## Browser Compatibility
Firefox preforms the best in both desktop and mobile.
| Browser | Version |
|-|-|
| Chrome | v57+ |
| Firefox | v52+ |
| Edge | v16+ |
| Safari* | v11+ |
| IE | not supported |
WebAssembly compiles really slow in Safari for iOS accroding to our tests.
## Documentation
[Dynamsoft Barcode Reader JavaScript Edition Manual (6.4.1.1)](https://www.dynamsoft.com/help/Barcode-Reader-wasm/index.html)
[Guide (6.4.1.1)](https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/documents/guide-original.md)
[API Reference (6.4.1.1)](https://github.com/dynamsoft-dbr/javascript-barcode/blob/master/documents/api-original.md)
## Hello World Sample
Copy the following code into an HTML file and run it in a web browser.
```html