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This test compares the performance of global variables to local variables within functions.
Global variables should be slower because they do not exist in a function's activation object. JavaScript must traverse the Scope Chain to locate global variables.
<script>
function x() {
return Object.create(null);
}
function y() {
return {};<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
}
</script>Ready to run.
| Test | Ops/sec | |
|---|---|---|
| Global variables | | ready |
| Local variables | | ready |
| Cached global variables | | ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.