Get folder ID with JSOM

Question

I need to fetch folder ID using JSOM. Actually, I need to update one of its columns, that is why I want to get ID.
For now, I can get its name:
function get_currentFolder(OnSuccess, OnError) {
    var context = SP.ClientContext.get_current();
    var web = context.get_web();
    var currentFolder = web.getFolderByServerRelativeUrl(decodeURIComponent(ctx.rootFolder));
    context.load(currentFolder);
    context.executeQueryAsync(
      function () {
          OnSuccess(currentFolder);
      OnError
get_currentFolder(function (folder) {
        console.log('Current folder:' + folder.get_name());
    }, function (sender, args) {
        console.log(args.get_message());
Is there a way to get ID or is there a way to update one column of that folder in a different way??

Answer 1

Check if below can help
http://www.c-sharpcorner.com/UploadFile/anavijai/how-to-get-the-number-of-items-inside-the-folder-in-sharepoi/
http://stackoverflow.com/questions/22629710/get-sub-files-with-folders-ids-client-object-model
var folders = new Dictionary<string,Microsoft.SharePoint.Client.Folder>();
var folderNames = new[] {"Orders","Requests"};
foreach (var folderName in folderNames)
var folderKey = string.Format("/Shared Documents/{0}", folderName);
folders[folderKey] = context.Web.GetFolderByServerRelativeUrl(folderKey);
context.Load(folders[folderKey],f => f.Files);
context.ExecuteQuery(); //execute request only once
//print all files
var allFiles = folders.SelectMany(folder => folder.Value.Files);
foreach (var file in allFiles)
Console.WriteLine(file.Name);
If this helped you resolve your issue, please mark it Answered