My case belongs to the novice Xiaobai, and the master is cautious.
Often encountered data nesting and data processing, for example:
json = [
{"name":zhangsan,"id":111,"sex":1,"time":2020/12/15,},
{"name":李四,"id":222,"sex":0,"time":1900/1/1,},
{"name":王五,"id":333,"sex":1,"time":1900/1/1,},
],After receiving the above data format, and then want to judge that sex=0, it will be displayed as female, and sex=1 will be displayed as male; regardless of white cat or black cat, it is a good cat that can be constructed and processed
Is to rewrite the split build:
//定义新容器
var newJson=[];
ver newSex；
//循环替换对象
for(var i=0;i<json.length;i++){ //判断原json里面的长度，进行循环修改
//这就判断替换值咯
if(json[i].sex == 0){
newSex= "女"
}else{
newSex= "男"
}
newJson.push(
{"name":json[i].name,"id":json[i].id,"sex":newSex,"time":json[i].time,}
);
}Suitable for js and VUE
There should be a simpler method, such as spit() and other functions, which can be done directly without writing so many lines of code. The above method can build a tree or other simpler
json = [
{"name":张三,"id":111,"sex":1,"time":2020/12/15,
"childInfo":{
"name":张三人,"id":111,"sex":1,"time":2020/12/15,"childInfo":null
}
},
{"name":李四,"id":222,"sex":0,"time":1900/1/1,"childInfo":null
"childInfo":{
"name":张三啊,"id":111,"sex":1,"time":2020/12/15,"childInfo":null
}
},
{"name":王五,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
],Similar to this nesting, then you want to become this format:
JSON = [
{"name":张三,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
{"name":张三人,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
{"name":李四,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
{"name":张三啊,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
{"name":王五,"id":333,"sex":1,"time":1900/1/1,"childInfo":null},
]，Then do a recursive loop to solve the problem, each is split, the approximate wording of VUE, JS is the same type. This is to construct a new structure (although the method is silly)
getjson(e){//tree置换【{}，{}】的JSON方法
value；//数据来源
var NewJSON = [];
var i ;
e.map((cuttentDate ) => {
this.NewJSON.push( {"name":value.name,"id":value.id,"sex":value.sex,"time":value.,"childInfo":value.childInfo},);
cuttentDate.childInfo!=null && cuttentDate.childInfo.length >0 ? this.getjson(cuttentDate.childInfo,cuttentDate.id) : "";
})
},You can refer to others: https://www.cnblogs.com/panyujun/p/10084092.html