Merge two arrays keeping only unique values

JavaScript performance comparison

Revision 19 of this test case created by

Preparation code

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.min.js"></script>

      
<script>
Benchmark.prototype.setup = function() {
  var array1 = ["Vijendra", "Singh", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
  var array2 = ["Singh", "Shakya", 2, 4, 6, 8, 10, 12, 14, 16, 18, 20];
  

};
</script>

Preparation code output

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Top Answer http://stackoverflow.com/a/1584377/259809
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Filter (Other option) http://stackoverflow.com/a/24179672/259809
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While Loop (My Answer)
var a;
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lodash/_ (Second Highest Rated) http://stackoverflow.com/a/10499519/259809
var a;
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