getting value of nested JSON with jquery

Question

I have very little experience working with jSON

My problem is getting the value from nested arrays.

I've tried for loops and .each() but for some reason it never works as expected.

I'm trying to access the artname.artists.name for each artname object.

I can console.log it by doing console.log(data.artname[0].artists.name);

I've tried to use for loop inside .each();

Can someone help me out here?

Here is a sample of may code

var i;
var actors = data.artname;
var text = "";
for (i=0; i <actors.length; i++){
 text += actors[i] + "<br>";
console.log(actors.name);
}

I can access the role from artname but I'm not able to go deeper and access the actors name from artists

$.each(data.artname, function(i, arts){
$("#arts").append( '<li>' + 'Role:' + arts.role + " " + '</li>');  

   $.each(arts.artists, function(j,actor){ 


     $("#actor").append( '<li>' + 'Actor:' + actor.name  + '</li>'); // gives undefined


   });

});

Here is a part of the JSON file.

    "data": {
"artname" : [ {
    "nr" : 123,
    "role" : "john booth",
    "artists" : {
      "nr" : 81,
      "name" : "Tom Tomson",
      "birthday" : "1954-01-11",
      "allowed" : true,
      "printForm" : "Tom Hanks (11.01.1954-15.04.1999)"
    },
    "profession" : {
      "name" : "actors"
    }
  }, 
  "artname" : [ {
      "nr" : 153,
      "role" : "clair luv",
      "artists" : {
        "nr" : 141,
        "name" : "Ron Ronson",
        "birthday" : "1924-03-11",
        "allowed" : true,
        "printForm" : "Ron Ronsson (11.03.1924-11.04.1959)"
      },
      "profession" : {
        "name" : "actors"
      }
    }, 
    "artname" : [ {
        "nr" : 423,
        "role" : "john booth",
        "artists" : {
          "nr" : 64,
          "name" : "Jane Joe",
          "birthday" : "1974-01-11",
          "allowed" : true,
          "printForm" : "Jane Doe (11.01.1974-15.04.1999)"
        },
        "profession" : {
          "name" : "actors"
        }
      }

}

The JSON data structure is invalid. Could you please correct the sample data? You may want to read this: stackoverflow.com/help/minimal-reproducible-example — Mehdi
– Mehdi, Commented Mar 11, 2020 at 14:45

Marcus · Accepted Answer · 2020-03-11 15:30:38Z

1

With

$.each(data.artname, function(i, arts){
    $.each(arts.artists, function(j,actor){

you loop over arts.artists. But this is a Object, not a Array. Your variable j will become the key/attribute-name and actor become the value:

$.each(arts.artists, function(j,actor){ 
  console.log(j+': '+actor);
}

try this and rethink what do you want to get instead :)

When you only need the name try this one:

$.each(data.artname, function(i, arts){
    $("#arts").append( '<li>' + 'Role:' + arts.role + " " + '</li>');  
    console.log(arts.artists.name);
});

edited Mar 11, 2020 at 15:30

answered Mar 11, 2020 at 15:12

Marcus

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5 Comments

codegirl Over a year ago

Thank you for this, now I'm able see nr, name, birthday, allowed, printform for all actors. I have no Idea how to fish just the name from it.

Marcus Over a year ago

try arts.artists.name but not inside the second for-each-loop. Remove this for-each-loop $.each(arts.artists, function(j,actor){ ... }

codegirl Over a year ago

I get your point, but what I need is the name from the arts.artists as in "artists" : { "nr" : 141, "name" : "Ron Ronson", I managed to display the Role by my self :)

Mehdi Over a year ago

The last part of @Marcus' answer shows how the artist's name can be accessed. Doesn't it work for you, @codegirl?

Mehdi Over a year ago

Then please correct the sample JSON data structure in your question. The brackets are not matching.

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