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export const transformFile2Base64 = (val: any): Promise<any> => {
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.readAsDataURL(val);
reader.onload = (): void => {
resolve(reader.result);
};
reader.onerror = reject;
});
};
export const transformBase64ToFile = (
dataUrl: string,
filename: string = 'file',
) => {
let arr = dataUrl.split(','),
bstr = atob(arr[1]),
n = bstr.length,
u8arr = new Uint8Array(n);
const mime = arr[0].match(/:(.*?);/);
const mimeType = mime ? mime[1] : 'image/png';
while (n--) {
u8arr[n] = bstr.charCodeAt(n);
}
return new File([u8arr], filename, { type: mimeType });
};
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