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Promise vs promise-like #jsbench #jsperf (http://jsbench.github.io/#75936e4013331c253ee19dbd67b8578a) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title> Promise vs promise-like #jsbench #jsperf</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script> | |
| <script src="./suite.js"></script> | |
| </head> | |
| <body> | |
| <h1>Open the console to view the results</h1> | |
| <h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2> | |
| </body> | |
| </html> |
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| "use strict"; | |
| (function (factory) { | |
| if (typeof Benchmark !== "undefined") { | |
| factory(Benchmark); | |
| } else { | |
| factory(require("benchmark")); | |
| } | |
| })(function (Benchmark) { | |
| var suite = new Benchmark.Suite; | |
| Benchmark.prototype.setup = function () { | |
| let count = 0 | |
| const inc_count = (value) => count += value | |
| const test_promise_like = () => { | |
| return { | |
| then: (callback) => callback(1) | |
| } | |
| } | |
| const test_static_promise_like = () => { | |
| return { | |
| then: and_then(1) | |
| } | |
| } | |
| const and_then = (value) => (callback) => callback(value) | |
| const and_then_one = and_then(1) | |
| const test_full_static_promise_like = () => { | |
| return { | |
| then: and_then_one | |
| } | |
| } | |
| const test_promise_resolve = () => { | |
| return Promise.resolve(1) | |
| } | |
| const test_promise = () => { | |
| return new Promise((resolve, reject) => { | |
| resolve(1) | |
| }) | |
| } | |
| }; | |
| suite.add("test_promise_like().then(inc_count)", function () { | |
| test_promise_like().then(inc_count) | |
| }); | |
| suite.add("test_static_promise_like().then(inc_count)", function () { | |
| test_static_promise_like().then(inc_count) | |
| }); | |
| suite.add("test_full_static_promise_like().then(inc_count)", function () { | |
| test_full_static_promise_like().then(inc_count) | |
| }); | |
| suite.add("test_promise_resolve().then(inc_count)", function () { | |
| test_promise_resolve().then(inc_count) | |
| }); | |
| suite.add("test_promise().then(inc_count)", function () { | |
| test_promise().then(inc_count) | |
| }); | |
| suite.add("inc_count(1)", function () { | |
| inc_count(1) | |
| }); | |
| suite.on("cycle", function (evt) { | |
| console.log(" - " + evt.target); | |
| }); | |
| suite.on("complete", function (evt) { | |
| console.log(new Array(30).join("-")); | |
| var results = evt.currentTarget.sort(function (a, b) { | |
| return b.hz - a.hz; | |
| }); | |
| results.forEach(function (item) { | |
| console.log((idx + 1) + ". " + item); | |
| }); | |
| }); | |
| console.log(" Promise vs promise-like #jsbench #jsperf"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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