Any help or suggestion on how to achieve please?
I have a group of 8 teams
teamArray =['Team_1', 'Team_2', 'Team_3', 'Team_4', 'Team_5', 'Team_6', 'Team_7', 'Team_8']
and use the following function to pair each team which give 28 pairs
let pairs = teamArray.flatMap(
(v, i) => teamArray.slice(i+1).map( w => [v,w] )
);
Now I want to take the 28 pairs and split into 7 arrays of with 4 pairs, while each array cannot have an pair with one value more than once?
an example of the desired output:
result = [
[['Team_1', 'Team_2'], ['Team_3', 'Team_4'], ['Team_5', 'Team_6'], ['Team_7', 'Team_8']],
[['Team_1', 'Team_3'], ['Team_2', 'Team_4'], ['Team_5', 'Team_7'], ['Team_6', 'Team_8']],
...]
Seems like a task for the reduce method of an array:
result = pairs.reduce((accumulator, currentPair) => {
let match = accumulator.find(array => !array.some(pair => currentPair.some(ci => pair.some(i => ci === i))));
if (match !== undefined) {
match.push(currentPair);
return accumulator;
}
else {
accumulator.push([currentPair]);
return accumulator;
}
}, []);