使用forloop將新屬性添加到JSON不起作用

Question

我正在嘗試使用for循環將新屬性動態添加到JSON對象數組中，但是非常奇怪的是，如果我對對象的索引進行硬編碼而不是使用i，它就可以工作。

這有效：

sa.savannahWS.completedWorkOrder("09/29/2017").then(function(response) {                                    
                response.invocationResult.result[0].CSXPMTWO = "TEST";
                response.invocationResult.result[1].CSXPMTWO = "TEST";
                console.log(response.invocationResult.result);
                },  function(error) {
                    sa.savannahUtils.showErrorPopup("Error In Creating Wiring House", error);
                });

這些不起作用：

sa.savannahWS.completedWorkOrder("09/29/2017").then(function(response) {                    
                console.log(response.invocationResult.result);  
                for(var i = 0; i<response.invocationResult.result.size; i++) {
                        response.invocationResult.result[i].CSXPMTWO = "TEST";
                    }
                console.log(response.invocationResult.result);
                },  function(error) {
                    sa.savannahUtils.showErrorPopup("Error In Creating Wiring House", error);
                });

---

sa.savannahWS.completedWorkOrder("09/29/2017").then(function(response) {                    
                console.log(response.invocationResult.result);  
                for(var i = 0; i<response.invocationResult.result.size; i++) {
                        response.invocationResult.result[i]["CSXPMTWO"] = "TEST";
                    }
                console.log(response.invocationResult.result);
                },  function(error) {
                    sa.savannahUtils.showErrorPopup("Error In Creating Wiring House", error);
                });

---

sa.savannahWS.completedWorkOrder("09/29/2017").then(function(response) {                    
                console.log(response.invocationResult.result);  
                for(var i = 0; i<response.invocationResult.result.size; i++) {
                        response.invocationResult.result[i].push({"CSXPMTWO": "TEST"});
                    }
                console.log(response.invocationResult.result);
                },  function(error) {
                    sa.savannahUtils.showErrorPopup("Error In Creating Wiring House", error);
                });

Answer 1

您確定已定義response.invocationResult.result.size嗎？ 通常對於數組，數組的大小為.length