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October 19, 2021 10:18
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Getting data from part of an array. (http://jsbench.github.io/#76c90bc0c4d970eeb8ce91a27bb3ccf3) #jsbench #jsperf
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>Getting data from part of 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 () { | |
var array = []; | |
for (let item = 0; item < 100; item++) { | |
console.log('item:', item) | |
array.push(item) | |
console.log(array) | |
} | |
}; | |
suite.add("Array slice method", function () { | |
// Array slice method | |
let output; | |
output = array.slice(0,25) | |
}); | |
suite.add("Array for loop iteration", function () { | |
// Array for loop iteration | |
let output = [] | |
let limit = 25, pos = 0; | |
for (let step = 0; step < limit; step++) { | |
output.push(array[pos+step]); | |
} | |
}); | |
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("Getting data from part of an array."); | |
console.log(new Array(30).join("-")); | |
suite.run(); | |
}); |
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