Using the value from an array of object I'm trying to generate an another array of objects with a different structure than that of the original array.
In the following example arrays you can see that from the key:value
pairs the key is changing between the Source array and Result array but the values are same. I had tried some code but not worthwhile to share. What logic or method can be used in this case to generate the object structure mentioned below
Source array
[
{
"node": {
"Charecter": "Hulk",
"Publisher": "Marvel",
"Movie": "Avengers"
}
},
{
"node": {
"Charecter": "Wolverine",
"Publisher": "Marvel",
"Movie": "X-Men"
}
},
{
"node": {
"Charecter": "Superman",
"Publisher": "DC",
"Movie": "Man of steel"
}
}
]
Result array
[
{
"Franchise": "Marvel",
"Data": [
{
"Lead": "Hulk",
"In": "Avengers"
},
{
"Lead": "Wolverine",
"In": "X-Men"
}
]
},
{
"Franchise": "DC",
"Data": [
{
"Lead": "Superman",
"In": "Man of steer"
}
]
},
]
Using .reduce()
and .find()
combination you can achieve the goal.
Try the following:
const data = [{ "node": { "Charecter": "Hulk", "Publisher": "Marvel", "Movie": "Avengers" } }, { "node": { "Charecter": "Wolverine","Publisher": "Marvel","Movie": "X-Men" } }, {"node": { "Charecter": "Superman", "Publisher": "DC","Movie": "Man of steel" } }]; const result = data.reduce((a, c) => { const found = a.find(e => e.Franchise === c.node.Publisher); if (found) found.Data.push({ Lead: c.node.Charecter, In: c.node.Movie }); else a.push({ Franchise: c.node.Publisher, Data: [{ Lead: c.node.Charecter, In: c.node.Movie }] }); return a; }, []); console.log(result)
I hope this helps!
You can do it with Array#reduce
method where group everything within an object and extract object values using Object.values
method.
const data = [{"node":{"Charecter":"Hulk","Publisher":"Marvel","Movie":"Avengers"}},{"node":{"Charecter":"Wolverine","Publisher":"Marvel","Movie":"X-Men"}},{"node":{"Charecter":"Superman","Publisher":"DC","Movie":"Man of steel"}}]" const result = Object.values(data.reduce((obj, { node: { Publisher: p, ...rest }}) => { // define key if not defined obj[p] = obj[p] || { Franchise: p, Data: [] }; // push to the array obj[p].Data.push(rest); return obj; }, {})); console.log(result)
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