js automatically generates object attribute sample code_javascript skills

For example, we have the following object

Copy code The code is as follows:

var obj = { a: {
b:"bb"
}
}

But now we want to add the following attributes to the obj object: obj.a.b.c.d.f="ff"; We generally It will be done as follows, obj.a.b.c={}, obj.a.b.c.d={}, obj.a.b.c.d.f="ff"; but if I have many attributes, this method is not feasible. Now provide a method to automatically generate object properties

Copy code The code is as follows:

function autoCreateObjProperty( temString){
var TemObjs = temString.split(".");
for(var i =0;ivar ttt = TemObjs[i];
if(!obj.hasOwnProperty(TemObjs[i])){
var objString="obj";
for(var j= 1;j<=i;j ){
objString =". " TemObjs[j];
}

obj = eval(objString);
if(obj == undefined){
var temObjString="obj"; //The name of the object var obj = {}
for(var j= 1;jtemObjString ="." TemObjs[j];
}
obj = eval(temObjString);
obj[TemObjs[i]]={};
obj={};
}
}else{
obj = obj[TemObjs[i]];
}
}
return obj;

}