Get file, folder by ID, create folder, Search folder and ID

Get file, folder by ID, create folder, Search folder and ID

function getFilesAndFolder() {
//Get File  by ID
var file=DriveApp.getFileById("1_eYdGILxexc7JVJGeKjdcGk-lSwawHTgb12boCWIfF4");
Logger.log(file)

//Get Folder by ID and get list of files inside it
var files=DriveApp.getFolderById("0Bz7xEwadCXkXSUVhODdGRHVnUkk").getFiles();
while(files.hasNext())
{
  Logger.log(files.next())
}

//Create Folder
DriveApp.createFolder("Apps Script")

//Search Folder by contain logic
var folder=DriveApp.searchFolders("title contains 'youtube'");
while(folder.hasNext())
{
  Logger.log(folder.next())

}

//search File by mime Type
var files=DriveApp.searchFiles("mimeType contains 'image/' and title contains 'img'");
while(files.hasNext())
{
  Logger.log(files.next())
}

}