Remove element from JSON Object

Question

I have a json array which looks something like this            id   1       children                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                                    id   2           children                  id   3               children                      id   4                   children                                         I would like to have a function which removes the elements which has the  children  empty  How can I do it  I am not asking for the answer  only suggestions

User · Accepted Answer

To iterate through the keys of an object, use a for .. in loop:

for (var key in json_obj) {
    if (json_obj.hasOwnProperty(key)) {
        // do something with `key'
    }
}

To test all elements for empty children, you can use a recursive approach: iterate through all elements and recursively test their children too.

Removing a property of an object can be done by using the delete keyword:

var someObj = {
    "one": 123,
    "two": 345
};
var key = "one";
delete someObj[key];
console.log(someObj); // prints { "two": 345 }

Documentation:

User · Answer

JSfiddle   function deleteEmpty obj           for var k in obj           if k     children                 if obj k                         deleteEmpty obj k                  else                     delete obj children                                     for var i 0  i lt  a children length  i      deleteEmpty a children i

[javascript] Remove element from JSON Object

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