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October 21, 2021 15:31
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compare of different reducer (http://jsbench.github.io/#222cd394e4afee6c3dc312efb661aa80) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>compare of different reducer</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; | |
| suite.add("Using Object.assign()", function () { | |
| // Using Object.assign() | |
| var arr = [{key:"11", value:"1100"},{key:"22", value:"2200"}]; | |
| var object = arr.reduce((obj, item) => Object.assign(obj, { [item.key]: item }), {}); | |
| console.log(object); | |
| }); | |
| suite.add("Using ...object destructuring", function () { | |
| // Using ...object destructuring | |
| var arr = [{key:"11", value:"1100"},{key:"22", value:"2200"}]; | |
| var object = arr.reduce((obj, item) => ({...obj, [item.key]: item}) ,{}); | |
| console.log(object); | |
| }); | |
| suite.add("Using comma operator (,)", function () { | |
| // Using comma operator (,) | |
| var arr = [{key:"11", value:"1100"},{key:"22", value:"2200"}]; | |
| var object = arr.reduce((obj, item) => (obj[item.key] = item, obj) ,{}); | |
| console.log(object); | |
| }); | |
| 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("compare of different reducer"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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