Chris Chen
26 lines
1.0 KiB
TypeScript
26 lines
1.0 KiB
TypeScript
export class FileUtils {
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public static formatFileSize(bytes: number): string {
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if (bytes < 1024) {
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return `${bytes} Bytes`;
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} else if (bytes < 1024 * 1024) {
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return `${(bytes / 1024).toFixed(2)} KB`;
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} else {
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return `${(bytes / (1024 * 1024)).toFixed(2)} MB`;
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}
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}
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public static getFileName(fileFullPath: string): string | null {
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const lastSlashIndex = fileFullPath.lastIndexOf('\\');
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if (lastSlashIndex === -1 || lastSlashIndex === 0 || lastSlashIndex === fileFullPath.length - 1) {
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return fileFullPath; // No folder found
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}
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return fileFullPath.slice(lastSlashIndex + 1);
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}
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public static getFileExt(filename: string): string | null {
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const lastDotIndex = filename.lastIndexOf('.');
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if (lastDotIndex === -1 || lastDotIndex === 0 || lastDotIndex === filename.length - 1) {
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return null; // No extension found
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}
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return filename.slice(lastDotIndex);
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}
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} |