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gluestick/src/forms.ts

13 lines
391 B
TypeScript

export async function fileAsBase64(f: File) {
const reader = new FileReader();
reader.readAsArrayBuffer(f);
return new Promise<string>((resolve, reject) => {
reader.onload = () => {
const result = reader.result as ArrayBuffer;
const buffer = Buffer.from(result);
resolve(buffer.toString("base64"));
};
reader.onerror = () => reject(reader.error);
});
}