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January 23, 2020 03:46
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Searching strings for any of two special chars (https://jsbench.github.io/#31bf76ea5fa539b60fb1b80b321916d3) #jsbench #jsperf
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"/> | |
| <title>Searching strings for any of two special chars</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 () { | |
| const shortNoMatch = 'test'; | |
| const shortMatch = 'te>t'; | |
| const mediumNoMatch = 'test'.repeat(20); | |
| const mediumMatch = 'te'.repeat(20) + '>' + 'st'.repeat(20).slice(1); | |
| const longNoMatch = 'test'.repeat(100); | |
| const longMatch = 'te'.repeat(100) + '>' + 'st'.repeat(100).slice(1); | |
| function indexOfSearch(str) { | |
| const rightCurly = str.indexOf('}'); | |
| const greaterThan = str.indexOf('>'); | |
| if (rightCurly === -1 || greaterThan === -1) return ''; | |
| const index = Math.min(rightCurly, greaterThan); | |
| return str[index]; | |
| } | |
| const regex = /}|>/; | |
| function regexSearch(str) { | |
| const match = regex.exec(str); | |
| return match ? match[0] : ''; | |
| } | |
| function loopSearch(str) { | |
| for (let i = 0; i < str.length; i++) { | |
| const c = str[i]; | |
| if (c === '}' || c === '>') return c; | |
| } | |
| return ''; | |
| } | |
| }; | |
| suite.add("Short, no match, for loop search", function () { | |
| // Short, no match, for loop search | |
| loopSearch(shortNoMatch); | |
| }); | |
| suite.add("Short, no match, regex search", function () { | |
| // Short, no match, regex search | |
| regexSearch(shortNoMatch); | |
| }); | |
| suite.add("Short, no match, indexOf search", function () { | |
| // Short, no match, indexOf search | |
| indexOfSearch(shortNoMatch); | |
| }); | |
| suite.add("Short, match, for loop search", function () { | |
| // Short, match, for loop search | |
| loopSearch(shortMatch); | |
| }); | |
| suite.add("Short, match, regex search", function () { | |
| // Short, match, regex search | |
| regexSearch(shortMatch); | |
| }); | |
| suite.add("Short, match, indexOf search", function () { | |
| // Short, match, indexOf search | |
| indexOfSearch(shortMatch); | |
| }); | |
| suite.add("Medium, no match, for loop search", function () { | |
| // Medium, no match, for loop search | |
| loopSearch(mediumNoMatch); | |
| }); | |
| suite.add("Medium, no match, regex search", function () { | |
| // Medium, no match, regex search | |
| regexSearch(mediumNoMatch); | |
| }); | |
| suite.add("Medium, no match, indexOf search", function () { | |
| // Medium, no match, indexOf search | |
| indexOfSearch(mediumNoMatch); | |
| }); | |
| suite.add("Medium, match, for loop search", function () { | |
| // Medium, match, for loop search | |
| loopSearch(mediumMatch); | |
| }); | |
| suite.add("Medium, match, regex search", function () { | |
| // Medium, match, regex search | |
| regexSearch(mediumMatch); | |
| }); | |
| suite.add("Medium, match, indexOf search", function () { | |
| // Medium, match, indexOf search | |
| indexOfSearch(mediumMatch); | |
| }); | |
| suite.add("Medium, no match, for loop search", function () { | |
| // Medium, no match, for loop search | |
| loopSearch(longNoMatch); | |
| }); | |
| suite.add("Medium, no match, regex search", function () { | |
| // Medium, no match, regex search | |
| regexSearch(longNoMatch); | |
| }); | |
| suite.add("Medium, no match, indexOf search", function () { | |
| // Medium, no match, indexOf search | |
| indexOfSearch(longNoMatch); | |
| }); | |
| suite.add("Medium, match, for loop search", function () { | |
| // Medium, match, for loop search | |
| loopSearch(longMatch); | |
| }); | |
| suite.add("Medium, match, regex search", function () { | |
| // Medium, match, regex search | |
| regexSearch(longMatch); | |
| }); | |
| suite.add("Medium, match, indexOf search", function () { | |
| // Medium, match, indexOf search | |
| indexOfSearch(longMatch); | |
| }); | |
| 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("Searching strings for any of two special chars"); | |
| console.log(new Array(30).join("-")); | |
| suite.run(); | |
| }); |
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