fn && fn() vs if( fn ) fn()

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var fn = function() {};
    var ne;   // not a function
};
</script>

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Testing in unknown unknown
Test Ops/sec
fn && fn()
fn && fn();
pending…
if( fn ) fn()
if( fn ) fn();
pending…
ne && ne()
ne && ne();
pending…
if( ne ) ne()
if( ne ) ne();
pending…

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