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Javascript API Reference - BarcodeReader Decode Methods
| Method | Description |
|---|---|
decode |
Decode barcodes from images, binary data, URLs, and more. |
decodeBase64String |
Decode barcodes from a base64 encoded string. |
decodeBuffer |
Decode barcodes from raw buffer. |
decodeUrl |
Decode barcodes from a URL. |
decode
Decode barcodes from various sources, including binary data, images, base64 (with MIME type), URLs, etc.
decode(source) returns Promise
Parameters
source *Blob |
Buffer | ArrayBuffer | Uint8Array | Uint8ClampedArray | HTMLImageElement | HTMLCanvasElement | HTMLVideoElement | string* |
Return Value
Promise<TextResult[]>
Sample
Read barcodes from live camera
decodeBase64String
Decode barcodes from a base64 string with or without MIME type. For example, with MIME type specified: data:image/jpg;base64,Xfjshekk... and without: Xfjshekk....
decodeBase64String(base64) returns Promise
Parameters
base64 string
Return Value
Promise<TextResult[]>
Sample
Read barcodes from live camera
decodeBuffer
Decode barcodes from raw buffer.
decodeBuffer(buffer, width, height, stride, format, config) returns Promise
Parameters
buffer Uint8Array | Uint8ClampedArray | ArrayBuffer | Blob | Buffer
width number
height number
stride number
format EnumImagePixelFormat
configoptional any
Return Value
Promise<any>
Sample
Read barcodes from live camera
decodeUrl
Decode barcodes from URLs. The URL source must be in the same domain or allows Cross-Origin Resource Sharing (CORS).
decodeUrl(url) returns Promise
Parameters
url string
Return Value
Promise<TextResult[]>
Yes
No