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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | 77x 2x 3x 3x 3x 3x 3x 3x 3x 3x 3x 5x 5x 5x 5x 5x 5x 5x 5x 5x | import { Observable } from 'rxjs';
export function delay(ms: number) {
return new Promise(resolve => setTimeout(resolve, ms));
}
/**
* Reads a File or Blob as a Data URL using FileReader and returns an Observable.
* @param file The File or Blob to read.
* @returns An Observable that emits the Data URL string upon successful completion.
*/
export function readFileAsDataURL(file: Blob): Observable<string> {
return new Observable<string>((subscriber) => {
const reader = new FileReader();
reader.onload = () => {
subscriber.next(reader.result as string);
subscriber.complete();
};
reader.onerror = (error) => {
subscriber.error(error);
};
reader.readAsDataURL(file);
return () => {
reader.abort();
};
});
}
/**
* Reads a File or Blob as a string using FileReader and returns an Observable.
* @param file The File or Blob to read.
* @returns An Observable that emits the string upon successful completion.
*/
export function readFileAsString(file: Blob): Observable<string> {
return new Observable<string>((subscriber) => {
const reader = new FileReader();
reader.onload = () => {
subscriber.next(reader.result as string);
subscriber.complete();
};
reader.onerror = (error) => {
subscriber.error(error);
};
reader.readAsText(file);
return () => {
reader.abort();
};
});
}
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