Benchmark: Property vs. Variable Access

Script Preparation code:

var object = {
    prop1: 5,
    prop2: "hello",
    prop3: true
};

var prop1 = 5;
var prop2 = "hello";
var prop3 = true;

Tests:

Variable Access
const result1 = Math.round(prop1); const result2 = prop2.substring(2); const result3 = prop3 && false;
Property Access
const result1 = Math.round(object.prop1); const result2 = object.prop2.substring(2); const result3 = object.prop3 && false;

Rendered benchmark preparation results:

Previous results

Test case name	Result
Variable Access
Property Access

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36

Browser/OS: Chrome 87 on Windows

Test name	Executions per second
Variable Access	1937126.0 Ops/sec
Property Access	1865021.0 Ops/sec

Property vs. Variable Access (version: 0)