Run results for: Optional Chaining TypeScript old spice

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36

Browser: Chrome 94

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Old spice	659530000.0 Ops/sec
Optional chaining	623858400.0 Ops/sec

Tests:

Old spice
const response = { "$metaData" : { "httpStatusCode" : 404 } } let foo = false; if (response && !!response.$metadata && !!response.$metadata.httpStatusCode && response.$metadata.httpStatusCode>= 400) { foo = true; }
Optional chaining
const response = { "$metaData" : { "httpStatusCode" : 404 } } let foo = false; if(response?.$metaData?.httpStatusCode) { foo = true; }