Get nested JSON keys only

Question

Example JSON

{
  "one": [{
    "A": {"name":"example"},
    "B": {}
  }],
  "two": [{
    "A": {"name":"booger"},
    "B": {}
  }]
}

Using this I can get keys "one" and "two" to be listed.

$.getJSON('blahblah.js', function(data){
  $.each(data, function(key){
    console.log(key);
  });
});

But using this, I can't get "A" and "B" to be listed.

$.getJSON('blahblah.js', function(data){
  $.each(data.one, function(key){
    console.log(key);
  });
});

Why not? And how do I get those inner keys(is this the correct term?) to be listed. Thanks

based on your data "one" and "two" each contain a single dimension array. So you are either not going deep enough to obtain the other objects or maybe you didn't mean to use those square brackets. — fnostro
– fnostro, Commented Apr 19, 2022 at 18:22
@Fnostro, it does need to be an array right? if I lose the square brackets, and drop [0] from the date.one, it doesn't work.. — Clueless
– Clueless, Commented Apr 19, 2022 at 18:29

fnostro · Accepted Answer · 2022-04-19 18:46:54Z

1

So...not sure what you're seeing then...

var jsontext_withbrackets =
  '{"one":[{"A":{"name": "example"},"B":{}}],\
  "two":[{"A":{"name": "booger" },"B":{}}]}';

var obj1 = JSON.parse(jsontext_withbrackets);

var jsontext_withoutbrackets =
  '{"one":{"A":{"name": "example"},"B":{}},\
  "two":{"A":{"name": "booger" },"B":{}} }';

var obj2 = JSON.parse(jsontext_withoutbrackets);

console.log(obj1.one[0]);
console.log(obj2.one);

answered Apr 19, 2022 at 18:46

fnostro

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2 Comments

Clueless Over a year ago

You were correct. I must have done something wrong. My name is clueless for a reason. I will accept your answer, thank you for expanding.

fnostro Over a year ago

Glad to help. We were all clueless once :) Happy coding.

Serge · Accepted Answer · 2022-04-19 18:46:01Z

1

try this

$.each(data, function (key) {
  data[key].forEach((element) => {
    $.each(element, function (item) {
      console.log(key + ":"+item + ":" + JSON.stringify(element[item]));
    });
  });
});

result

one:A:{"name":"example"}
one:B:{}
two:A:{"name":"booger"}
two:B:{}

answered Apr 19, 2022 at 18:46

Serge

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1 Comment

Clueless Over a year ago

Thank you. The other answer was more direct to what I was wondering about. Though this is more verbose, and I may use it.

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