javascript - Retrieve JSON object from Google Sheets using Sheetrock.js -

i using sheetrock.js allow me query public google spreadsheet. works , populating html table data returning. using so:

$('#spreadsheet').sheetrock({     url: myspreadsheet,     query: "select b,y,ad order ab asc",     labels: ['name', 'levels skipped', 'time'],     fetchsize: 10 }); 

instead of using data populate table want data json can use in javascript code not know how so.