david_bai
34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
import { CustomFile } from '@/types/webrtc';
|
|
|
|
//对文件大小自适应单位并格式化输出
|
|
export const formatFileSize = (sizeInBytes: number): string => {
|
|
const units = ['B', 'KB', 'MB', 'GB', 'TB'];
|
|
let size = sizeInBytes;
|
|
let unitIndex = 0;
|
|
|
|
while (size >= 1024 && unitIndex < units.length - 1) {
|
|
size /= 1024;
|
|
unitIndex++;
|
|
}
|
|
|
|
return `${size.toFixed(2)} ${units[unitIndex]}`;
|
|
};
|
|
|
|
export const generateFileId = (file: CustomFile): string => {
|
|
return `${file.fullName}-${file.size}-${file.type}-${file.lastModified}`;
|
|
};
|
|
/**
|
|
* Triggers a browser download for the given file-like object.
|
|
* @param file - The file blob or any file-like object that can be used with URL.createObjectURL.
|
|
* @param saveName - The name to use for the downloaded file.
|
|
*/
|
|
export const downloadAs = async (file: Blob | File, saveName: string): Promise<void> => {
|
|
const url = URL.createObjectURL(file);
|
|
const a = document.createElement('a');
|
|
a.href = url;
|
|
a.download = saveName;
|
|
document.body.appendChild(a);
|
|
a.click();
|
|
document.body.removeChild(a);
|
|
URL.revokeObjectURL(url);
|
|
}; |