How to Create a Spreadsheet in a particular folder via App Script

Question

Can anybody help me out,

I want to create a Spreadsheet through App Script in a particular folder. How to do that.

Presently I am doing as follow:

Answer 1

I finally got the answer to my question. The following works

var file = DocsList.getFileById(sheet.getId());
var folder = DocsList.getFolder("MyFolder");
file.addToFolder(folder);

// remove document from the root folder
folder = DocsList.getRootFolder();
file.removeFromFolder(folder);