fs-iterator/dist/esm/depthFirst/filter.js

A file system iterator with filter and asyncIterator iterafaces. Supports Node 0.10 and above

import compat from 'async-compat';
export default function filter(iterator, entry, callback) {
    const options = iterator.options;
    if (!options.filter) return callback(null, true);
    compat.asyncFunction(options.filter, options.callbacks, entry, (err, keep)=>{
        err ? callback(err) : callback(null, !!compat.defaultValue(keep, true));
    });
}