I am trying to get outgoingNodes IDs which are stored in array which is inside objects like in example below but I have no idea where to start...:
const nodes = {
"818": {
"id": "818",
"index": 1,
"outgoingNodes": [
"819"
],
},
"819": {
"id": "819",
"outgoingNodes": [
"820",
"821"
],
}
}
I would like to get an array of IDs as a result. Any help will be appreciated.
Get the values (sub objects), pluck the outgoingNodes arrays, and flatten to a single array:
const { pipe, values, pluck, flatten } = R
const fn = pipe(
values,
pluck('outgoingNodes'),
flatten
)
const nodes = {"818":{"id":"818","index":1,"outgoingNodes":["819"]},"819":{"id":"819","outgoingNodes":["820","821"]}}
const result = fn(nodes)
console.log(result)<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.1/ramda.min.js" integrity="sha512-rZHvUXcc1zWKsxm7rJ8lVQuIr1oOmm7cShlvpV0gWf0RvbcJN6x96al/Rp2L2BI4a4ZkT2/YfVe/8YvB2UHzQw==" crossorigin="anonymous"></script>Another option is to combine getting the outgoingNodes arrays, and flattening to a single array using R.chain with R.prop:
const { pipe, values, chain, prop } = R
const fn = pipe(
values,
chain(prop('outgoingNodes')),
)
const nodes = {"818":{"id":"818","index":1,"outgoingNodes":["819"]},"819":{"id":"819","outgoingNodes":["820","821"]}}
const result = fn(nodes)
console.log(result)<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.1/ramda.min.js" integrity="sha512-rZHvUXcc1zWKsxm7rJ8lVQuIr1oOmm7cShlvpV0gWf0RvbcJN6x96al/Rp2L2BI4a4ZkT2/YfVe/8YvB2UHzQw==" crossorigin="anonymous"></script>
