Created
November 25, 2016 11:44
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Remove all instances of item from an array (http://jsbench.github.io/#fec618f95fedb4f152a2f682a9b3d25c) #jsbench #jsperf
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>Remove all instances of item from an array</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 () { | |
arr = [1,2,4,2,4,5,6,8,4,3,2,4,2,4,76,8,9,0,4,3,2,6,4,3,8,1,2,6,4,3,6]; | |
item=4; | |
}; | |
suite.add("var idx = arr.indexOf(item);", function () { | |
var idx = arr.indexOf(item); | |
while (idx >= 0) { | |
arr.splice(idx, 1); | |
idx = arr.indexOf(item, idx); | |
} | |
}); | |
suite.add("var idx = arr.indexOf(item);", function () { | |
var idx = arr.indexOf(item); | |
while (idx >= 0) { | |
arr.splice(idx, 1); | |
idx = arr.indexOf(item); | |
} | |
}); | |
suite.add("var ret = [];", function () { | |
var ret = []; | |
for (var i = 0, len = arr.length; i < len; i++) { | |
if (arr[i] !== item) { | |
ret.push(arr[i]); | |
} | |
} | |
}); | |
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("Remove all instances of item from an array"); | |
console.log(new Array(30).join("-")); | |
suite.run(); | |
}); |
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