Run results for: Testing methods to iterate array

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Browser: Chrome 78

Operating system: Windows 7

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Iterate through array once	20891660.0 Ops/sec
Iterate through array twice	11408710.0 Ops/sec

Tests:

Iterate through array once
const operation = [ { "op": "replace", "path": "/author/reference", "value": "chewy" }, { "op": "replace", "path": "/status", "value": "completed" }, { "op": "replace", "path": "/subject/reference", "value": "foobar" } ]; let statusOperation = null; let foundItemOperations = null; for (var i = 0, len = operation.length; i < len; i++) { operation[i].path === '/status' ? statusOperation = operation[i] : null; operation[i].path.indexOf('item') !== -1 ? foundItemOperations : null; }
Iterate through array twice
const operation = [ { "op": "replace", "path": "/author/reference", "value": "chewy" }, { "op": "replace", "path": "/status", "value": "completed" }, { "op": "replace", "path": "/subject/reference", "value": "foobar" } ]; const statusOperation = operation.find(op => op.path === '/status'); const foundItemOperations = operation.some((op) => { return op.path.indexOf('item') !== -1; });