How can I iterate over the Properties of an object and its childs objects? I used for in but I can't get the Songs info :/
let discos = [];
let disco1 = {
discoName: 'name disco1',
band: 'band name',
code: 1,
songs: [
{ 'songName': 'Song Name',
'duration': 200,
},
],
};
let disco2 = {
discoName: 'name disco 2',
band: 'band name 2',
code: 1,
songs: [
{ 'songName': 'Song Name 0',
'duration': 200,
},
],
};
discos.push(disco1,disco2);
for (let disco in discos){
console.log(discos[disco].discoName);
}
If you want a truly recursive solution, you will need to use a recursion, since this cannot be done using for.. in:
let discos = [];
let disco1 = {
discoName: 'name disco1',
band: 'band name',
code: 1,
songs: [
{ 'songName': 'Song Name',
'duration': 200,
},
],
};
let disco2 = {
discoName: 'name disco 2',
band: 'band name 2',
code: 1,
songs: [
{ 'songName': 'Song Name 0',
'duration': 200,
},
],
};
discos.push(disco1,disco2);
const visitRec = (obj, visitor) => {
if (obj instanceof Array) {
obj.forEach(e => visitRec(e, visitor));
} else if (typeof obj == 'object') {
for (let key in obj) {
visitRec(obj[key], visitor);
}
} else {
visitor(obj);
}
}
visitRec(discos, console.log);However, what I think you want is just:
for (let disco of discos){
console.log(disco.discoName);
for (let song of disco.songs) {
console.log(song.songName);
}
}