A class to benchmark run duration of functions

speedtest.inc.js

/**
 * A class to benchmark (multiple) function calls
 *
 * @author Radon8472
 * @since  2024-02-22
 * @version 1.0
 *
 *
 * @example
 * Speedtest.messure(
 *      function (a, b) { return a+b; },
 *      'benchmark_ab_function'
 * );
 *
 * console.log('Function calls took %d ms', Speedtest.times['benchmark_ab_function'])
 *
 */
class Speedtest {
    /**
     * @type {object} Stores summed times for each test (name given to "messure()" method is the key
     */
    static times = {};

    /**
     * Messure times for a function-call and summarize it to `speedtest.times` for later usage
     *
     * @param {function} func A function whose time should be measured
     * @param {string}   name the name where this time should be counted to
     *
     * @returns {function(...[*]): *} A wrapper function, that acts the same way as the function given as "func"-argument
     *
     */
    static messure (func, name = '_unnamed') {
        return (...args) => {
            if (!(name in this.times))
                this.times[name] = 0;

            const start = performance.now();
            let result;
            try {
                result = func(...args);
            } catch (error) {
                console.error('Error in Speedtest', error);
            }

            this.times[name] += (performance.now() - start);
            return result;
        }
    }
}