easy-performance-measure-example.js

const {measureSync, measureAsync} = require('easy-performance-measure');

// 1. Create a synchronous method to measure
/**
 * Add values
 * @param count
 * @return {number}
 */
const syncFn = (count) => {
    let l = 0;
    for (let i = 0; i < count; i++) {
        l += 1;
    }
    return l;
};

// 2. Create an asynchronous method that calls the synchronous method after a certain timeout
/**
 * Async method wrapping 'syncFn' and calls it after some countdown
 * @param count
 * @return {Promise<unknown>}
 */
const asyncFn = async (count) => {
    return new Promise((resolve) => {
        setTimeout(() => {
            resolve(syncFn(count));
        }, 250);
    });
};

const main = async () => {
    // 3. Measure synchronous method via measureSync
    console.log(measureSync(syncFn, 500000000));
    // Output: [ 500000000, 504 ]

    // 4. Measure asynchronous method via measureAsync
    console.log(await measureAsync(asyncFn, 500000000));
    // Output: [ 500000000, 754 ]
}

main();