sgetRange() app script code example

Example 1: getranges google script

let SS = APP.getActiveSpreadsheet();
let sheetIndex0 = SS.getSheets()[0];

sheetIndex0.getRangeList(['A1', 'B1:C7']).setHorizontalAlignment("center");

Example 2: google script get sheet size

var lastColumn = sheet.getLastColumn();
// Returns the position of the last column that has content.