Э
array.reduce((unique, current) => {
if(!unique[current.playlistid]) {
unique[current.playlistid] = current
}
return unique
}, {})
Size: a a a
М
array.reduce((unique, current) => {
if(!unique[current.playlistid]) {
unique[current.playlistid] = current
}
return unique
}, {})
t
t
М
t
t
t
t
М
t
for (k in obj) {
if (k === 'playlist_id') // do it something
}
НС