如何访问特定文件夹以获取扩展名中的文件名

Question

So i need to get names of files in my "db" folder, that i later need to use in my extension. I searched on how to do this and I can get all file names from my root extension folder but not from any other.

This is the code that gives back all file names from extension folder that i found from this question: How do I get a list of filenames in a subfolder of a Chrome extension?

chrome.runtime.getPackageDirectoryEntry(function(directoryEntry) {
var directoryReader = directoryEntry.createReader();
// List of DirectoryEntry and/or FileEntry objects.
var filenames = [];
(function readNext() {
    directoryReader.readEntries(function(entries) {
        if (entries.length) {
            for (var i = 0; i < entries.length; ++i) {
                filenames.push(entries[i].name);
            }
            readNext();
        } else {
            // No more entries, so all files in the directory are known.
            // Do something, e.g. print all file names:
            console.log(filenames);
        }
    });
})();
});

This is the code that is supposed to do what i want but i cant figure out how to implement it here

directoryEntry.getDirectory('_locales', {}, function(subDirectoryEntry) {
var directoryReader = subDirectoryEntry.createReader();
// etc.. same code as in previous snippet.
});

Answer 1

The code I needed was this.

chrome.runtime.getPackageDirectoryEntry(function(directoryEntry) {
    directoryEntry.getDirectory('index', {}, function(subDirectoryEntry) {
        var directoryReader = subDirectoryEntry.createReader();
        // List of DirectoryEntry and/or FileEntry objects.
        var filenames = [];
        (function readNext() {
            directoryReader.readEntries(function(entries) {
                if (entries.length) {
                    for (var i = 0; i < entries.length; ++i) {
                        filenames.push(entries[i].name);
                    }
                    readNext();
                } else {
                    // No more entries, so all files in the directory are known.
                    // Do something, e.g. print all file names:
                    console.log(filenames);
                }
            });
        })();
    });
});