typecache

JavaScript performance comparison

Test case created by Matt and last updated

Info

Explores performance impact of inline cache hits vs. misses.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var result;
    var x = 'x', y = 'y';
    var a = { 'x': true };
};
</script>

Test runner

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Testing in unknown unknown
Test Ops/sec
CacheHit
result = !!a[x];
pending…
CacheMiss
result = !!a[y];
pending…

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