Logging a Range in Google Apps Script -

i new using google app script , don't understand how "logger.log" command works.

i'm working google app script bound script spreadsheet. below snipet of code working on:

function tasks() {   var ss = spreadsheetapp.getactivespreadsheet();   var sheet = ss.getsheetbyname("task list");   sheet.activate();    var hi = 23;   logger.log(hi);   logger.log("the range " + sheet.getrange(1, 1, 10, 1)); } 

when run code, displayed in logger:

[16-06-02 00:56:12:129 edt] 23.0 [16-06-02 00:56:12:130 edt] range range 

why displaying "range" sheet.getrange function rather array of data.

also can please explain difference between "getrange" , "getdatarange".

the range object pointer @ range, a1:a10. different set of values in range, array of entries. values range, use getvalues method:

logger.log("the values " + sheet.getrange(1, 1, 10, 1).getvalues()); 

to second question: documentation pretty clear on getdatarange does: gives range begins a1 , stretches far there data in sheet. if put data in b5 , d2, , else, datarange a1:d5. getrange specify range want.