25 lines
565 B
TypeScript
25 lines
565 B
TypeScript
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import mime from "mime/lite";
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import path from "path";
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import { trimPrefix } from "./string.ts";
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/**
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* Get the file mime type. In case the type is not provided, try to guess the
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* file type based on the extension.
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*
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* @param file - The file.
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* @returns - The mime type.
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*/
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export function getFileMimeType(file: File): string {
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if (file.type) return file.type;
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let ext = path.extname(file.name);
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ext = trimPrefix(ext, ".");
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if (ext !== "") {
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const mimeType = mime.getType(ext);
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if (mimeType) {
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return mimeType;
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}
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}
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return "";
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}
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