Apologies if the question seems unclear. Essentially, I am dealing with an object structured as follows:
[{"6":6.5},{"4":4.2},{"6":6.3}]
My goal is to eliminate duplicate keys while preserving their values, and merge them into a single unique key, forming an array like so:
[{"6":[6.5, 6.3]}, {"4": 4.2}]
Any suggestions on how to achieve this?
.reduce() is the perfect solution for your needs:
var data = [{"6":6.5},{"4":4.2},{"6":6.3}];
var res = data.reduce((rv, obj) => {
var key = Object.keys(obj)[0];
rv[key] = rv[key] || [];
rv[key].push(obj[key]);
return rv;
}, {});
console.log(res);Important Note: This code snippet will always return data in array format, even if there is only one value. If you specifically require the exact format you mentioned, additional logic can be implemented as shown below. However, it is cautioned that this approach may introduce further complexity in the code in the future.
var data = [{"6":6.5},{"4":4.2},{"6":6.3}];
var res = data.reduce((rv, obj) => {
var key = Object.keys(obj)[0];
if (Array.isArray(rv[key])) {
rv[key].push(obj[key]);
} else if (rv[key] !== undefined) {
rv[key] = [rv[key], obj[key]];
} else {
rv[key] = obj[key];
}
return rv;
}, {});
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