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includes vs. fuzzy (https://jsbench.github.io/#b57b39d65c0a0301dbbdae33f1bbe7ed) #jsbench #jsperf
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>includes vs. fuzzy</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 () { | |
function includes(search, target) { | |
const start = target.toLowerCase().indexOf(search); | |
if (start < 0) return null; | |
return [ | |
{ | |
start, | |
end: start + search.length | |
} | |
]; | |
} | |
function fuzzy(search, target) { | |
// if same length, short circuit to includes | |
if (search.length === target.length) return includes(search, target); | |
if (search.length === 0 || search.length > target.length) return []; | |
if (search.length > target.length) return []; | |
return fuzzyHelper(search.toLowerCase(), target.toLowerCase(), 0, 0); | |
} | |
function fuzzyHelper(search, target, i, j) { | |
if (i === search.length) { | |
return []; | |
} else if (j === target.length) { | |
return null; | |
} else { | |
if (search[i] === target[j]) { | |
// if we have a match, increment both search/target pointers | |
// and keep searching | |
const result = fuzzyHelper(search, target, i + 1, j + 1); | |
return result ? join({start: j, end: j + 1}, result) : null; | |
} | |
// if there's no match, check the next char of the target | |
return fuzzyHelper(search, target, i, j + 1); | |
} | |
} | |
function join(head, tail) { | |
if (tail.length === 0) { | |
tail = [head]; | |
} else if (head.end === tail[0].start) { | |
tail[0].start = head.start; | |
} else { | |
tail.unshift(head); | |
} | |
return tail; | |
} | |
}; | |
suite.add("includes(\"hey\", \"hey-there\");", function () { | |
includes("hey", "hey-there"); | |
}); | |
suite.add("fuzzy(\"hey\", \"hey-there\");", function () { | |
fuzzy("hey", "hey-there"); | |
}); | |
suite.add("includes(\"\", \"hey-there\");", function () { | |
includes("", "hey-there"); | |
}); | |
suite.add("fuzzy(\"\", \"hey-there\");", function () { | |
fuzzy("", "hey-there"); | |
}); | |
suite.add("includes(\"hey-there\", \"hey-there\");", function () { | |
includes("hey-there", "hey-there"); | |
}); | |
suite.add("fuzzy(\"hey-there\", \"hey-there\");", function () { | |
fuzzy("hey-there", "hey-there"); | |
}); | |
suite.add("includes(\"y-th\", \"hey-there\");", function () { | |
includes("y-th", "hey-there"); | |
}); | |
suite.add("fuzzy(\"y-th\", \"hey-there\");", function () { | |
fuzzy("y-th", "hey-there"); | |
}); | |
suite.add("includes(\"there-he\", \"hey-there\");", function () { | |
includes("there-he", "hey-there"); | |
}); | |
suite.add("fuzzy(\"zzz zzzz\", \"hey-there\");", function () { | |
fuzzy("zzz zzzz", "hey-there"); | |
}); | |
suite.add("includes(\"ere\", \"hey-there\");", function () { | |
includes("ere", "hey-there"); | |
}); | |
suite.add("fuzzy(\"ere\", \"hey-there\");", function () { | |
fuzzy("ere", "hey-there"); | |
}); | |
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("includes vs. fuzzy"); | |
console.log(new Array(30).join("-")); | |
suite.run(); | |
}); |
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