This is the given array:
[{
key: 1,
nodes: {}
}, {
key: 2,
nodes: {}
}, {
key: 3,
nodes: {}
}]
How to create nested child objects in JavaScript from this array?
[{
key: 1,
nodes: [{
key: 2,
nodes: [{
key: 3,
nodes: []
}]
}]
}];
This is a pretty good use case for reduceRight
which allows you to build the structure from the inside out:
let arr = [{ key: 1, nodes: {} }, { key: 2, nodes: {} }, { key: 3, nodes: {} }] let a = arr.reduceRight((arr, {key}) => [{key, nodes: arr}],[]) console.log(a)
It's working fine. Try this below code
const firstArray = [{ key: 1, nodes: {} }, { key: 2, nodes: {} }, { key: 3, nodes: {} }];
firstArray.reverse();
const nestedObject = firstArray.reduce((prev, current) => {
return {
...current,
nodes:[{...prev}]
}
}, {});
console.log(nestedObject)
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