Run results for: Test URI for File Extension

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Slice Negative

19.0M/s

Slice Positive

19.0M/s

EndsWith Negative

17.7M/s

EndsWith Positive

15.1M/s

Split Positive

10.6M/s

Split Negative

10.5M/s

View exact numbers

Test name	Executions per second
✓ Slice Negative	19,041,702 Ops/sec
Slice Positive	19,015,130 Ops/sec
EndsWith Negative	17,670,462 Ops/sec
EndsWith Positive	15,066,870 Ops/sec
Split Positive	10,572,381 Ops/sec
Split Negative	10,466,105 Ops/sec

Script Preparation code:

function checkUsingSplit(uri) {
    return uri.split('.').pop() === 'html';
}

function checkUsingEndsWith(uri) {
    return uri.endsWith('.html');
}

function checkUsingSlice(uri) {
    return uri.slice(-5) === '.html';
}

Tests:

Split Positive
checkUsingSplit('/example/path/index.html');
Split Negative
checkUsingSplit('/example/path/index');
EndsWith Positive
checkUsingEndsWith('/example/path/index.html');
EndsWith Negative
checkUsingEndsWith('/example/path/index');
Slice Positive
checkUsingSlice('/example/path/index.html');
Slice Negative
checkUsingSlice('/example/path/index');