typeof vs. tostring to check function type

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a=function(){};
};
</script>

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Testing in unknown unknown
Test Ops/sec
typeof
typeof a==="function"
pending…
tostring
Object.prototype.toString.call(a) === "[object Function]";
 
pending…

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