데이터 푸시

var _data = [];
$("input[name='it_id[]']").each(function(i){
var _it_ids         = this.value;   // 상품 unique id
var _it_names       = $("input[name='it_name[]']").eq(i).val();
var _it_prices      = $("input[name='it_price[]']").eq(i).val();
var _it_stock_qtys  = $("input[name='it_stock_qty[]']").eq(i).val();
var _row_price      = $("input[name='row_price[]']").eq(i).val();
var _total_price    = $(".total_price").eq(i).val();
var _sale           = $("input[name='sale[]']").eq(i).val();
var _memo           = $("input[name='memo[]']").eq(i).val();

_data.push([_it_ids,_it_names,_it_prices, _it_stock_qtys, _row_price, _total_price, _sale, _memo]);

})
$("#wr_content").val(JSON.stringify(_data));