Question

我试图使用for循环动态地向JSON对象数组添加新属性，但是如果我硬编码对象的索引而不是使用i，那就很奇怪了。

这有效：

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);
                });

这些不起作用：

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

你确定是否定义了response.invocationResult.result.size？通常对于数组，数组的大小为.length

使用forloop向JSON添加新属性不起作用

1 个答案: