Question

How to get the difference between two sets in JavaScript

Answer 1

function getDifference(set1, set2) {
  return new Set(
    	[...set1].filter(element => !set2.has(element))
  );
}

const set1 = new Set(['typescript', 'javascript', 'node.js', 'c']);
const set2 = new Set(['typescript', 'javascript', 'node.js', 'c++']);

const diff_set = new Set([
  ...getDifference(set1, set2),
  ...getDifference(set2, set1),
]);

console.log([...diff_set].join(' '));
 
 
   
   
/*
run:
 
"c c++"
 
*/

 

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