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Describe your issue in detail here.
Hows it going, I am having some trouble implmenting this idea in my head that I know works… I made a compare function that did symmetric difference between 2 arrays but I am having some trouble doing it for multiple, though I do have an idea on paper which I will explain below.
the idea goes as follows:
example: “sym([1, 2, 5], [2, 3, 5], [3, 4, 5])”
i.) arr =
ii.) compare( , [1,2,5]) → [1,2,5]
iii.) compare([1,2,5] ,[2,3,5]) → [1,3]
iV.) compare ([1,3] ,[3,4,5]) → [1,4,5]
so basically I start with an empty array which I would use to compare with the first array to get [1,2,5], then using that same answer I would compare it to [2,3,5] to get [1,3] and finally [1,3] compares with [3,4,5] to get our answer [1,4,5]. I have implmented the compare function but cant implment the rest.
example input
**Your code so far**
function sym(…args) {
let n = args.length;
let arr =;
for(let i = 0; i < n; i++){
}
arr = compare(args[0],args[1]);
console.log(arr);
return args;
}
function compare(arr1,arr2){
let x = arr1.filter(x => {return !arr2.includes(x)});
let y = arr2.filter(x => {return !arr1.includes(x)});
let z = x.concat(y).sort((a,b) => {return a-b});
return z;
}
sym([1, 2, 3], [5, 2, 1, 4]);
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Challenge: Find the Symmetric Difference
Link to the challenge:
