js中的变量不赋初始值,会怎样?NAN(js遍历对象)获取jqgrid表中所有的rowid值

        //var result;
               var result = 0;
                var x = $dataGridGoodInfo.jqGrid("getRowData");
                for (var item in x){
                    if(x[item].settlementMoney != 0){
                        result += parseFloat(x[item].settlementMoney);
			}
			console.log(x[item].settlementMoney);
                }
                console.log(result);



	//获取grid表中所有的rowid值
                var result = 0;
                var rowIds = $dataGridGoodInfo.getDataIDs();
                if (rowIds.length > 0) {
                    for (var i = 0; i < rowIds.length; i++) {
                        result += parseFloat($dataGridGoodInfo.getRowData(rowIds[i]).settlementMoney);
                    }
                    console.log(result);
                }

//获取当前页条数 
var rowCurrentNum =  $("#tableId").jqGrid('getGridParam', 'rowNum');
//获取总数 (包含分页情况下,本页未显示的数据)   
var total = $("#tableId").jqGrid('getGridParam', 'records');   
//把grid重新加载成total的形势
$("#tableId").jqGrid('setGridParam', { rowNum: total }).trigger('reloadGrid'); 
//还原成之前状态
$("#tableId").jqGrid('setGridParam', { rowNum: rowCurrentNum }).trigger('reloadGrid');  

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转载自blog.csdn.net/qq_39822451/article/details/89339548
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