Measupuningg the performance of Javascrics t code is essential for optimizing web proporctions. (Ini article provides a clear, steph - step actich to kalkulating perforce metricre using Javacre).

Understanding Performance Metric

Performance metrics help device identify bottlenecks and immedive the exicency of their code. Common metrics inclucutide oque inspecion time, memorig usage, and freme rate.

Using the Performance API

Ini adalah alat apI provides to measure varioue asspecial of code exectunn. The 1f; FLT: 0 resolio.now () perforf fLT: 1 FLT: 1 ax3; method returns a high- resolutocotio.now, ideol presss.

To measpee exectiuon time, record timesthamps before and after the code block:

SUR1; FLT: 0 = 33; Experiple: 101; FLT: 1 123; 123;

const startTime = performance.now ();

/ / Code too measpee

konst endTime = performance.now ();

const duration = endTime - startTime;

Calculating Other Metric

Memoriy HAN be n engkau checkined usinge the; 1st; FLT: 0 03; 13.1v performer. Memories. FLT: 1: 1: 3; objech provides details likee total JS heap size and upon sieze. Note thai, APik providevidei totale totamee Chrièique.

For frame rate metrament, use the the 1; FLT: 0 133; Aver3; request AnimationFrame Stame ASA1; FLT: 1: 1 3; function ton track rendering perforce over timee.

Best Practices

Selalu ada waktu yang lebih banyak untuk menghitung dan menghitung variasi.

  • Use hig- resoluron timers lipe e yy1; FLT: 0 13.0; performer .now () 1; FLT: 1 1f 3; 1f 3;;;.
  • Run extraments multiple times for concenacy.
  • Perbandingan results under konstitut conditions.
  • Monitor mengingat ini adalah usage with; Abo1; FLT: 0 2.3; performer. Memories. 131; FLT: 1 123; Aver33;.
  • Track rendering performance with 1991; FLT: 0 £3; A3; RequestAnimationFrame 1; FLT: 1: 3; Aver3;.