How can I retrieve ids from a nested array?
Initially I get such json response and I need to get all ids from all nested arrays.
Anybody can help me out here?
Should I use filter or any of find functions?
An example or explanation could be great.
{
"id": 271,
"name": "anything",
"description": null,
"entries": [
{
"id": "fda2afe0-dfc4-4373-9e50-8b140a46f25e",
"name": "first occurence",
"runs": [
{
"id": 284,
"name": "the element from which I want to get id",
"description": null,
"created_on": 1530627823,
"created_by": 2
},
{
"id": 285,
"name": "element for id 2",
"created_by": 2
},
{
"id": 296,
"name": "element for id 3",
"created_on": 1530710993,
"created_by": 2
}
]
},
{
"id": "a65dd3f0-3fc1-4f93-9123-f5a05ae50703",
"name": "second occurence",
"runs": [
{
"id": 272,
"name": "element for id 4",
"created_by": 2,
},
{
"id": 273,
"created_by": 2,
},
{
"id": 274,
"created_by": 2,
}
]
}
]
}
Assuming you're looking for the deepest IDs (Run IDs), here is an example of how it can be done.
let response = {"id":271,"name":"anything","description":null,"entries":[{"id":"fda2afe0-dfc4-4373-9e50-8b140a46f25e","name":"first occurence","runs":[{"id":284,"name":"the element from which I want to get id","description":null,"created_on":1530627823,"created_by":2},{"id":285,"name":"element for id 2","created_by":2},{"id":296,"name":"element for id 3","created_on":1530710993,"created_by":2}]},{"id":"a65dd3f0-3fc1-4f93-9123-f5a05ae50703","name":"second occurence","runs":[{"id":272,"name":"element for id 4","created_by":2,},{"id":273,"created_by":2,},{"id":274,"created_by":2,}]}]}
function getRunIDs() {
let entries = response['entries'] || []
let runIDs = []
entries.forEach(entry => {
entry['runs'].forEach(run => {
runIDs.push(run['id'])
})
})
return runIDs
}
console.log({ runIDs: getRunIDs() })