Find centralized, trusted content and collaborate around the technologies you use most.
Learn more about CollectivesStack Internal
Knowledge at work
Bring the best of human thought and AI automation together at your work.
Explore Stack InternalA cleaner approach in ES6 is the following solution.
var a1 = ['a', 'b']; var a2 = ['a', 'b', 'c', 'd']; a2.filter(d => !a1.includes(d)) // gives ["c", "d"] a2.filter(d => a1.includes(d)) // gives ["a", "b"] [ ...a2.filter(d => !a1.includes(d)), ...a1.filter(d => !a2.includes(d)) ] A cleaner approach in ES6 is the following solution.
var a1 = ['a', 'b']; var a2 = ['a', 'b', 'c', 'd']; a2.filter(d => !a1.includes(d)) // gives ["c", "d"] a2.filter(d => a1.includes(d)) // gives ["a", "b"] A cleaner approach in ES6 is the following solution.
var a1 = ['a', 'b']; var a2 = ['a', 'b', 'c', 'd']; a2.filter(d => !a1.includes(d)) // gives ["c", "d"] a2.filter(d => a1.includes(d)) // gives ["a", "b"] [ ...a2.filter(d => !a1.includes(d)), ...a1.filter(d => !a2.includes(d)) ] A cleaner approach in ES6 is the following solution.
var a1 = ['a', 'b']; var a2 = ['a', 'b', 'c', 'd']; a2.filter(d => !a1.includes(d)) // gives ["c", "d"] a2.filter(d => a1.includes(d)) // gives ["a", "b"]