27 lines
839 B
JavaScript
27 lines
839 B
JavaScript
/* eslint no-console: "off" */
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const log = function(results, measurement, tags) {
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console.log(measurement, results, tags);
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};
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export default function(len = 10000, report = log, performance = window.performance) {
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return function(cb, measurement, tags) {
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let actual;
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return new Array(len)
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.fill(true)
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.reduce(function(prev, item, i) {
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return prev.then(function(ms) {
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return new Promise(function(resolve) {
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const start = performance.now();
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cb().then(function(res) {
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actual = res;
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resolve(ms + (performance.now() - start));
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});
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});
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});
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}, Promise.resolve(0))
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.then(function(total) {
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report({ avg: total / len, total: total, count: len }, measurement, tags);
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return actual;
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});
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};
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}
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