封装json串

1。

 var poHeadJson = {};  for (var i = 0; i < poHead.length; i++) {    poHeadJson[poHead[i].fieldId] = poHead[i].fieldData.value;  };

封装后json串为：
{poNumber: “1”, owner: “2”}
2.

 var line = [];  for (var j = 0; j < poLineList.length; j++) {    var tempParam = {};    for (var k = 0; k < poLineList[j].length; k++) {      if (poLineList[j][k].fieldId) tempParam[poLineList[j][k].fieldId] = poLineList[j][k].fieldData.value;    }    line.push(tempParam);  }  JSON.stringify(line);

封装后json串为：

"[{"amount":"","itemDescription":"3"},{"amount":"","itemDescription":"4"]"