Резервное копирование и борьба со стихийными бедствиями планируют mysql базу данных

const fileNames =
  ['one', 'two', 'three', 'three', 'five', 'six', 'ten']

const fileNamesWExt =
  [ 'one.txt', 'two.txt', 'three.txt', 'ten.wmf', 'eleven.cgm' ]

const basename = filename =>
  filename.split(/\.[^.]+$/)[0]

const finalArray =
  fileNamesWExt.filter(f => ! fileNames.includes(basename(f)))
  
console.log(finalArray)
// [ 'eleven.cgm' ]

const basename = filename =>
  filename.split(/\.[^.]+$/)[0]
  
console.log
  ( basename ("cat")               // "cat"
  , basename ("cat.dog")           // "cat"
  , basename ("cat.dog.eel")       // "cat.dog"
  , basename ("cat.dog.eel.fox")   // "cat.dog.eel"
  )

Array.prototype.includes = function (x, init) {
  for (var i = init || 0; i < this.length; i = i + 1)
    if (this[i] === x)
      return true;
  return false;
};

var fileNames =
  ['one', 'two', 'three', 'three', 'five', 'six', 'ten'];

var fileNamesWExt =
  [ 'one.txt', 'two.txt', 'three.txt', 'ten.wmf', 'eleven.cgm' ];

var basename = function (filename) {
  return filename.split(/\.[^.]+$/)[0];
};

var finalArray =
  fileNamesWExt.filter(function (f) {
    return ! fileNames.includes(basename(f));
  });
  
console.log(finalArray);
// [ 'eleven.cgm' ]