Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var c = [123, 35, 92, 213, 0, 45, 58, 84, 35, 78]
    var fnc = {
        123: function () {},
        35: function () {},
        92: function () {},
        213: function () {},
        0: function () {},
        45: function () {},
        58: function () {console.log('match fnc')},
        84: function () {},
        35: function () {},
        78: function () {}
    }
  };
</script>

Test runner

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var i = 0,
    il = c.length;

for (; i < il; i += 1) {
  if (c[i] === 58) {
    console.log('match arr')
  }
}

var i = 0,
    il = c.length;

for (; i < il; i += 1) {
    fnc[c[i]]();
}

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