JSON字符串操作移除空串更改key/value的介绍

对于JSON字符串的操作。移除键值、添加属性。

//删除JSON对象value值
var json=[.....];
delete(json['key']);
或者
delete(json.key);
//添加对象object
json.object=value;
或者
json['object']=value;

如果数据是查询数据库得到的，那么可能会存在空值，for循环JSON数据挨个移除空值或者操作数据比较繁琐。

这时候可以使用for…in来循环属性 去除空值或者操作数据。

 function removeEmptyObject(object){
 for (var i in object) {
 var value = object[i];
 if (typeof value === 'object') {
 if (Array.isArray(value)) {
 if (value.length == 0) {
 delete object[i];
 continue;
 }
 }
 removeEmptyObject(value);
 //按需添加
 if (isEmpty(value)) {
 delete object[i];
 }
 } else {
 if (value === '' || value === null || value === undefined) {
 delete object[i];
 } else {
 }
 }
 }
 return object;
}
//是否为空
function isEmpty(object) {
 for (var name in object) {
 return false;
 }
 return true;
}

操作组织架构JSON数据，移除空键值，子集内容合并到新键children下。

 function removeEmptyObject(object){
 for (var i in object) {
 var value = object[i];
 if (typeof value === 'object') {
 if (Array.isArray(value)) {
 if (value.length == 0) {
 //alert(object[i]);
 delete object[i];
 continue;
 }else{ 
 var a=[];
 if(i=='jobChildren'){
 for (var j = 0; j < object[i].length; j++) {
 a.push(object[i][j]);
 }
 delete object[i];
 }else if(i=='userChildren'){
 for (var j = 0; j < object[i].length; j++) {
 a.push(object[i][j]);
 }
 delete object[i]; 
 }else if(i=='deptChildren'){
 for (var j = 0; j < object[i].length; j++) {
 a.push(object[i][j]);
 }
 delete object[i]; 
 }else if(i=='companyChildren'){
 for (var j = 0; j < object[i].length; j++) {
 a.push(object[i][j]);
 }
 delete object[i]; 
 }else if(i=='jobDeptChildren'){
 for (var j = 0; j < object[i].length; j++) {
 a.push(object[i][j]);
 }
 delete object[i];
 }
 if(a.length>0&&object["children"]!=undefined){
 for (var k = 0; k < object["children"].length; k++) {
 a.push(object["children"][k]);
 }
 object["children"]=a;
 }else if(a.length>0 && object["children"]==undefined){
 object["children"]=a;
 } 
 }
 }
 removeEmptyObject(value);
 if (isEmpty(value)) {
 delete object[i];
 }
 } else {
 if (value === '' || value === null || value === undefined) {
 delete object[i];
 } else {
 }
 }
 }
 }
 function isEmpty(object) {
 for (var name in object) {
 return false;
 }
 return true;
 }

需要的就试试吧。

总结