Function getFileExtension

src/utils/files.ts:1–16

(filename: string, length = 4)

export const getFileExtension = (filename: string, length = 4) => {
  const filenameSplit = filename.split(".");

  if (filenameSplit.length > 1) {
    let extension = filenameSplit[filenameSplit.length - 1];

    if (extension.length > length)
      extension =
        extension.substring(0, length - 1) +
        extension.substring(extension.length - 1, extension.length);

    return extension.toUpperCase();
  } else {
    return "UNK";
  }
};

type ColorMap = {
  [key: string]: string;