I've got this object as example:
const obj = {
group: {
data: {
data: [
{
id: null,
value: 'someValue',
data: 'someData'
}
]
}
}
};
My goal is to get a value by propery name.
In this case I would like to get
the value of the data propery, but the last appearance of it.
Meaning the expected output is:
someData
However, I'm using this recursive function to retreive it:
const findVal = (obj, propertyToExtract) => {
if (obj && obj[propertyToExtract]) return obj[propertyToExtract];
for (let key in obj) {
if (typeof obj[key] === 'object') {
const value = findVal(obj[key], propertyToExtract);
if (value) return value;
}
}
return false;
};
Which gives me the first appearance of data, meaning:
data: [
{
value: 'someValue',
data: 'someData'
}
]
How can I get the wanted result?
one way can be to recursively flat the object and just get the wanted index (here data)
const obj = {
group: {
data: {
data: [
{
id: null,
value: 'someValue',
data: 'someData'
}
]
}
}
};
function deepFlat(obj) {
let flatObj = {};
flat(obj,flatObj);
console.log(flatObj);
return flatObj;
}
function flat(toFlat, flatObj) {
Object.entries(toFlat).forEach(elem => {
if (elem[1] && typeof elem[1] === 'object') {
flat(elem[1], flatObj);
} else {
flatObj[elem[0]] = elem[1];
}
});
}
let result = deepFlat(obj);
console.log(result['data']);