elapsing-time@3.2.0
Helps you to measure the runtime of your code. Package is available both for browser and Node.js. Time counts with help of performance.now function.
Installation
elapsing-time is available via NPM:
$ npm i elapsing-time@3.2.0Usage
import ElapsingTime from 'elapsing-time';
const timer = new ElapsingTime();
const wait = (ms: number) => new Promise<void>(res => setTimeout(res, ms));
(async () => {
for(let i = 0; i < 10; i++) {
timer.start();
await wait(200);
timer.stop();
}
console.log(timer.ms); // 2002.329
console.log(timer.s); // 2.002 // As seconds
console.log(timer.us); // 2001809.967 // As microseconds
console.log(timer.avg.ms); // 200.233 // Average value
})();Timer.reset
import ElapsingTime from 'elapsing-time';
const timer = new ElapsingTime();
const wait = (ms: number) => new Promise<void>(res => setTimeout(res, ms));
(async () => {
// Total value
timer.start();
await wait(100);
timer.stop();
console.log(timer.ms); // 102.937
timer.start();
await wait(200);
timer.stop();
console.log(timer.ms); // 303.213
timer.start();
await wait(300);
timer.stop();
console.log(timer.ms); // 603.607
// Now with reset
timer.reset();
timer.start();
await wait(100);
timer.stop();
console.log(timer.ms); // 100.715
timer.reset();
timer.start();
await wait(200);
timer.stop();
console.log(timer.ms); // 200.74
timer.reset();
timer.start();
await wait(300);
timer.stop();
console.log(timer.ms); // 300.782
})();Timer.start with autoreset
import ElapsingTime from 'elapsing-time';
const timer = new ElapsingTime();
const wait = (ms: number) => new Promise<void>(res => setTimeout(res, ms));
(async () => {
timer.start();
await wait(100);
timer.stop(true); // The next timer.start will invoke timer.reset under the hood
console.log(timer.ms); // 103.025
timer.start();
await wait(200);
timer.stop(true);
console.log(timer.ms); // 200.088
timer.start();
await wait(300);
timer.stop();
console.log(timer.ms); // 300.327
})();Built-in print functions
import ElapsingTime from 'elapsing-time';
const timer = new ElapsingTime();
const wait = (ms: number) => new Promise<void>(res => setTimeout(res, ms));
(async () => {
timer.start();
await wait(100);
timer.msPrint(); // Time: 102.07 ms
await wait(10);
timer.sPrint(); // Time: 0.115 s
// There is no timer.stop so it's still counting
await wait(10);
timer.usPrint(); // Time: 124822.4 us
await wait(10);
timer.msPrint('Custom label'); // Custom label: 134.661 ms
})();The same way "avg" print functions are also present in timer.avg:
import ElapsingTime from 'elapsing-time';
const timer = new ElapsingTime();
const wait = (ms: number) => new Promise<void>(res => setTimeout(res, ms));
(async () => {
timer.start();
await wait(100);
timer.stop();
timer.avg.sPrint(); // Time: 0.102 s
timer.start();
await wait(900);
timer.stop();
timer.avg.usPrint(); // Time: 501137.335 us
timer.start();
await wait(200);
timer.avg.msPrint('Custom label'); // Custom label: 400.882 ms
timer.stop();
})();Testing
Manually tested by the developer during development. Automated tests are not provided.
Your improve suggestions and bug reports are welcome any time.
