How to get the union of two sets in javascript -


this question has answer here:

say have 2 sets (arrays):

a = [1,2,3]; b = [2,3,5];

and want 1,2,3,5 out only.

what terse way this? or, failing that, way this?

var = [1,2,3]; var b = [2,3,5];  //concat both arrays [1,2,3,2,3,5] var result = a.concat(b).filter(function(value, index, self) { //array unique     return self.indexof(value) === index;  }); console.log(result); //[1, 2, 3, 5];

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