23 行
769 B
TypeScript
23 行
769 B
TypeScript
export const PDF_FILE_ACCEPT = ".pdf,application/pdf";
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export function isPdfFile(file: File) {
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return file.type === "application/pdf" || file.name.toLowerCase().endsWith(".pdf");
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}
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export function splitPdfFiles(files: File[] | FileList | null | undefined) {
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const source = Array.from(files ?? []);
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return {
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accepted: source.filter(isPdfFile),
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rejected: source.filter((file) => !isPdfFile(file)),
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};
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}
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export function rejectedPdfMessage(rejected: File[]) {
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if (!rejected.length) {
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return "";
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}
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const names = rejected.slice(0, 3).map((file) => file.name || "未命名文件").join("、");
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const suffix = rejected.length > 3 ? `等 ${rejected.length} 个文件` : "";
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return `发票上传仅支持 PDF，已忽略 ${names}${suffix}。`;
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}
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