Automatically unzipping files on google drive with google app script - zip

Question

I found and have made several codes to automatically unzip new files on my google drive with google app script, but none of them work. Can someone help me figure out how to get one code to work? The code is supposed to get a zip file from a given google drive folder and unzip it, so that the files within can be extracted and used in a different code.
Here are the six codes that might work, but don't. I only need one to work so I don't mind which one :)
Thank you in advance for your suggestions and help!
function unZip() {
var theFolderID = DriveApp.getFolderById(folderID);
var theFile = theFolderID.getFilesByType(MimeType.ZIP);
if (theFile.length > 0) {
for (var i in theFile) {
file = theFile[i];
var unZippedfile = Utilities.unzip(file);
var newfile = DriveApp.createFile(unZippedfile);
var fileId = SpreadsheetApp.create(newfile).getId();
var file = DriveApp.getFileById(fileId);
folderName.addFile(newfile);
root.removeFile(newfile);
}
}
}
function unZipItAll() {
var theFolder = getFolder_(folderName);
var theFile = theFolder.getFilesByType("application/zip");
if (theFile.length > 0) {
for (var i in theFile) {
file = theFile[i];
var unZippedfile = Utilities.unzip(file);
var newfile = DriveApp.createFile(unZippedfile);
var fileId = SpreadsheetApp.create(newfile).getId();
var file = DriveApp.getFileById(fileId);
folderName.addFile(newfile);
root.removeFile(newfile);
}
}
}
function unzip() {
var theFolderID = DriveApp.getFolderById(folderID);
var theFile = theFolderID.getFilesByType("application/zip");
while (theFile.hasNext()){
var fileBlob = theFile.next().getBlob();
fileBlob.setContentType("application/zip");
var unZippedfile = Utilities.unzip(fileBlob);
var newfile = DriveApp.createFile(unZippedfile);
var fileId = SpreadsheetApp.create(newfile).getId();
var file = DriveApp.getFileById(fileId);
folderName.addFile(file);
root.removeFile(newfile);
}
}
function unZipIt() {
var theFolder = DriveApp.getFolderById(folderID);
var theFile = theFolder.getFilesByType("application/zip");
var fileBlob = theFile.next().getBlob();
fileBlob.setContentType("application/zip");
var unZippedfile = Utilities.unzip(fileBlob);
var newDriveFile = DriveApp.createFile(unZippedfile[0]);
Logger.log(newDriveFile.getId())
}
function Unzip() {
var SourceFolder = DriveApp.getFolderById(folderID)
var DestinationFolder = DriveApp.getFolderById(folderID)
var ZIPFiles = SourceFolder.getFilesByType(MimeType.ZIP)
while (ZIPFiles.hasNext()){
var fileBlob = ZIPFiles.next().getBlob();
var unZippedfile = Utilities.unzip(fileBlob);
var newDriveFile = DestinationFolder.createFile(unZippedfile[0]);
}
}
function testzip(){
var theFolderID = DriveApp.getFolderById(folderID);
var theFile = theFolderID.getFilesByType("application/zip");
if (theFile.length > 0) {
for (var i in theFile) {
file = theFile[i];
var unZippedfile = Utilities.unzip(file);
var unzipstr = unZippedfile[0].getDataAsString();
var newfile = DriveApp.createFile(unzipstr);
folderName.addFile(newfile);
root.removeFile(newfile);
}
}
}