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Comparing various approaches to iterating over an object's enumerable properties.
var object = {};
for (var i = 0; i < 100; ++i) {
object['user'+i] = 'user'+i;
}
var foo;
Ready to run.
Test | Ops/sec | |
---|---|---|
for…in |
| ready |
for…in with continue |
| ready |
Filtering with Object.keys |
| ready |
Object.keys + forEach |
| ready |
Filtering with Object.keys and cache |
| ready |
For ... in cache |
| ready |
Filtering with Object.keys 2 |
| ready |
Filtering with Object.keys While |
| ready |
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