Benchmark: Optional chaining array access without local cache vars vs optional chaining array access with local cache vars

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          }
        ]
      }
    ]
  }

Tests:

Optional chaining array access without local cache vars
var parseSensorData1 = (msg) => ({ 0: { piezo: msg.streams[0]?.frames[0]?.piezo?.piezo, acoustic: msg.streams[0]?.frames[0]?.mics[0]?.mic, accel: { x: msg.streams[0]?.frames[0]?.xl[0]?.xl_x, y: msg.streams[0]?.frames[0]?.xl[0]?.xl_y, z: msg.streams[0]?.frames[0]?.xl[0]?.xl_z, }, }, 1: { piezo: msg.streams[1]?.frames[0]?.piezo?.piezo, acoustic: msg.streams[1]?.frames[0]?.mics[0]?.mic, accel: { x: msg.streams[1]?.frames[0]?.xl[0]?.xl_x, y: msg.streams[1]?.frames[0]?.xl[0]?.xl_y, z: msg.streams[1]?.frames[0]?.xl[0]?.xl_z, }, }, 2: { piezo: msg.streams[2]?.frames[0]?.piezo?.piezo, acoustic: msg.streams[2]?.frames[0]?.mics[0]?.mic, accel: { x: msg.streams[2]?.frames[0]?.xl[0]?.xl_x, y: msg.streams[2]?.frames[0]?.xl[0]?.xl_y, z: msg.streams[2]?.frames[0]?.xl[0]?.xl_z, }, }, 3: { piezo: msg.streams[3]?.frames[0]?.piezo?.piezo, acoustic: msg.streams[3]?.frames[0]?.mics[0]?.mic, accel: { x: msg.streams[3]?.frames[0]?.xl[0]?.xl_x, y: msg.streams[3]?.frames[0]?.xl[0]?.xl_y, z: msg.streams[3]?.frames[0]?.xl[0]?.xl_z, }, }, 4: { piezo: msg.streams[4]?.frames[0]?.piezo?.piezo, acoustic: msg.streams[4]?.frames[0]?.mics[0]?.mic, accel: { x: msg.streams[4]?.frames[0]?.xl[0]?.xl_x, y: msg.streams[4]?.frames[0]?.xl[0]?.xl_y, z: msg.streams[4]?.frames[0]?.xl[0]?.xl_z, }, }, }) parseSensorData1(sensorMsg)
Optional chaining array access with local cache vars
var parseSensorData2 = (msg) => { const s = msg.streams; const s0 = s?.[0]; const f0 = s0?.frames?.[0]; const xl0 = f0?.xl?.[0]; const s1 = s?.[1]; const f1 = s1?.frames?.[0]; const xl1 = f1?.xl?.[0]; const s2 = s?.[2]; const f2 = s2?.frames?.[0]; const xl2 = f2?.xl?.[0]; const s3 = s?.[3]; const f3 = s3?.frames?.[0]; const xl3 = f3?.xl?.[0]; const s4 = s?.[4]; const f4 = s4?.frames?.[0]; const xl4 = f4?.xl?.[0]; return { 0: { piezo: f0?.piezo?.piezo, acoustic: f0?.mics?.[0]?.mic, accel: { x: xl0?.xl_x, y: xl0?.xl_y, z: xl0?.xl_z }, }, 1: { piezo: f1?.piezo?.piezo, acoustic: f1?.mics?.[0]?.mic, accel: { x: xl1?.xl_x, y: xl1?.xl_y, z: xl1?.xl_z }, }, 2: { piezo: f2?.piezo?.piezo, acoustic: f2?.mics?.[0]?.mic, accel: { x: xl2?.xl_x, y: xl2?.xl_y, z: xl2?.xl_z }, }, 3: { piezo: f3?.piezo?.piezo, acoustic: f3?.mics?.[0]?.mic, accel: { x: xl3?.xl_x, y: xl3?.xl_y, z: xl3?.xl_z }, }, 4: { piezo: f4?.piezo?.piezo, acoustic: f4?.mics?.[0]?.mic, accel: { x: xl4?.xl_x, y: xl4?.xl_y, z: xl4?.xl_z }, }, }; }; parseSensorData2(sensorMsg)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Optional chaining array access without local cache vars
Optional chaining array access with local cache vars

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser/OS: Chrome 143 on Windows

View result in a separate tab

Test name	Executions per second
Optional chaining array access without local cache vars	19506678.0 Ops/sec
Optional chaining array access with local cache vars	27884092.0 Ops/sec

Related benchmarks:

Optional chaining array access without local cache vars vs optional chaining array access with local cache vars (version: 1)

Testing with nested sensor data

Comparing performance of: Optional chaining array access without local cache vars vs Optional chaining array access with local cache vars

Created: 3 months ago by: Guest

Jump to the latest result

Optional chaining array access without local cache vars

Optional chaining array access with local cache vars

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A