function reject (coll, iteratee, callback) {
        return reject$2(eachOf$1, coll, iteratee, callback)
    }
The opposite of [`filter`]{@link module:Collections.filter}. Removes values that pass an `async` truth test.

@name reject
@static
@memberOf module:Collections
@method
@see [async.filter]{@link module:Collections.filter}
@category Collection
@param {Array|Iterable|AsyncIterable|Object} coll - A collection to iterate over.
@param {Function} iteratee - An async truth test to apply to each item in
`coll`.
The should complete with a boolean value as its `result`.
Invoked with (item, callback).
@param {Function} [callback] - A callback which is called after all the
`iteratee` functions have finished. Invoked with (err, results).
@returns {Promise} a promise, if no callback is passed
@example

// dir1 is a directory that contains file1.txt, file2.txt
// dir2 is a directory that contains file3.txt, file4.txt
// dir3 is a directory that contains file5.txt

const fileList = ['dir1/file1.txt','dir2/file3.txt','dir3/file6.txt'];

// asynchronous function that checks if a file exists
function fileExists(file, callback) {
   fs.access(file, fs.constants.F_OK, (err) => {
       callback(null, !err);
   });
}

// Using callbacks
async.reject(fileList, fileExists, function(err, results) {
   // [ 'dir3/file6.txt' ]
   // results now equals an array of the non-existing files
});

// Using Promises
async.reject(fileList, fileExists)
.then( results => {
    console.log(results);
    // [ 'dir3/file6.txt' ]
    // results now equals an array of the non-existing files
}).catch( err => {
    console.log(err);
});

// Using async/await
async () => {
    try {
        let results = await async.reject(fileList, fileExists);
        console.log(results);
        // [ 'dir3/file6.txt' ]
        // results now equals an array of the non-existing files
    }
    catch (err) {
        console.log(err);
    }
}