frozen or not

Benchmark created on

Setup

function obj() {
      var x = {};
      for (var i = 0; i < 100; i++)
        x['v' + i] = i;
      return x;
    }
    
    function iterate(stuff) {
      for (var x in stuff) {
        var y = stuff[x];
      }
    }
    
    function forEachIterate(stuff) {
      Object.keys(stuff).forEach(function(x) {
        var y = stuff[x];
      });
    }
    
    var unfrozen = obj();
    var frozen = obj();
    Object.freeze(frozen);

Test runner

Ready to run.

Testing in
TestOps/sec
frozen for
iterate(frozen)
ready
frozen foreach
forEachIterate(frozen)
ready
unfrozen for
iterate(unfrozen)
ready
unfrozen foreach
forEachIterate(unfrozen)
ready

Revisions

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