In my scenario, there is a JSON array with key-value pairs where the values are arrays. Here's an example:
json = {foo:[1,2],bar:[3,4],pi:[5]}
I am looking for a way to generate all possible combinations of these parameters for any number of keys. The desired output would be a list like:
{foo:1, bar:3, pi:5}
{foo:1, bar:4, pi:5}
{foo:2, bar:3, pi:5}
{foo:2, bar:4, pi:5}
Utilize the reduce function and for each loop to create fresh permutations during each iteration:
const data = {alpha:[10,20],beta:[30,40],gamma:[50, 70], delta: [10]};
const output = Object.keys(data).reduce((accumulator, key) => {
const tempArray = [];
data[key].forEach(element => {
if (!accumulator || !accumulator.length) { // Initial iteration
tempArray.push({[key]: element});
} else {
accumulator.forEach(object => {
tempArray.push({...object, [key]: element});
});
}
});
return tempArray;
}, []);
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