Scopes

JavaScript performance comparison

Revision 9 of this test case created by Ian Nartowicz

Info

Checking speed of access to various scopes

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Testing in unknown unknown
Test Ops/sec
global without specifiying scope
var a;
for (i=0; i < 100; i++) a = innerHeight;
 
pending…
global with explcit scope
var a;
for (i=0; i < 100; i++) a = window.innerHeight;
 
pending…
Global with temp local
var a;
var localCopy = window.innerHeight;
for (i=0; i < 100; i++) a = localCopy;
 
pending…

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