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Reverse or rotate #jsbench #jsperf (http://jsbench.github.io/#7026cebaa7153ab544e5301e7b7868ea) #jsbench #jsperf
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"/> | |
<title>Reverse or rotate #jsbench #jsperf</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("function revrot(str, sz) {", function () { | |
function revrot(str, sz) { | |
if (sz < 1 || sz > str.length) | |
return ''; | |
let reverse = s => s.split('').reverse().join(''); | |
let rotate = s => s.slice(1) + s.slice(0, 1); | |
let sum_cubes = c => c.split('').reduce((a, b) => (a + +b) ** 3, 0); | |
return str | |
.match(new RegExp('.{' + sz + '}', 'g')) | |
.map(c => sum_cubes(c) % 2 ? rotate(c) : reverse(c)) | |
.join(''); | |
} | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
suite.add("function revrot(str, sz) {", function () { | |
function revrot(str, sz) { | |
if(!sz||sz<0||sz>str.length)return ''; | |
var arr=str.match(new RegExp('\\d{'+sz+'}','g')); | |
return arr.map(function(v){ | |
if(v.toString().split('').reduce((s,v)=>s+v*1,0)%2===0){ | |
return v.split('').reverse().join(''); | |
} | |
else return v.slice(1)+v[0]; | |
}).join(''); | |
} | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
suite.add("function revrot(str, sz){", function () { | |
function revrot(str, sz){ | |
if(sz <= 0 || str.length <= 0 || sz > str.length) | |
return ''; | |
var nums = []; | |
while(str.length >= sz){ | |
nums.push(str.slice(0, sz)); | |
str = str.slice(sz); | |
} | |
nums = nums.map(function(num){ | |
var sum = num.replace(/[02468]/g, '').length; | |
if(sum % 2 == 0) | |
return num.split('').reverse().join(''); | |
else | |
return num.slice(1) + num.slice(0, 1); | |
}); | |
return nums.join(''); | |
} | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
suite.add("function revrot(str, sz) {", function () { | |
function revrot(str, sz) { | |
return ( sz<=0 || sz > str.length || str=="" ) ? "" | |
: str2chunks(str,sz).map( chunk => isSumOfCubesOfDigitsOdd(chunk) ? rotate(chunk) : reverse(chunk) ).join("") | |
} | |
const str2chunks = (s,c) => s.match( new RegExp(".{"+c+"}", "g"))||[]; | |
const isSumOfCubesOfDigitsOdd = str => str.replace(/[02468]/g,'').length%2; | |
const rotate = str => str.slice(1)+str[0]; | |
const reverse = str => str.split('').reverse().join('') | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
suite.add("function revrot(str, sz) {", function () { | |
function revrot(str, sz) { | |
function aux(u) { | |
var v = u.map(function(c) { return Math.pow(+c, 3); }); | |
return v.reduce(function(a, b) { return a + b; }); | |
} | |
if ((sz <= 0) || (str === "") || (sz > str.length)) return ""; | |
var s = str.match(new RegExp('.{'+ sz + '}', 'g')); | |
var t = s.map(function(r) { | |
var u = r.split(""); | |
if (aux(u) % 2 === 0) return u.reverse().join(''); | |
else | |
return r.substring(1) + r.charAt(0); | |
}); | |
return t.join("") | |
} | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
suite.add("function revrot(str, sz) {", function () { | |
function revrot(str, sz) { | |
let new_str = ''; | |
if(sz>0) { | |
for(let i=0; i<Math.floor(str.length/sz); i++){ | |
let current_str = str.substr(i*sz, sz); | |
let odds = current_str.split('').reduce((a,v) => { return a += v % 2 }, 0); | |
console.log(odds) | |
if(odds % 2) { | |
new_str += current_str.substr(1) + current_str.substr(0,1); | |
} else { | |
new_str += current_str.split('').reverse().join(''); | |
} | |
} | |
} | |
return new_str; | |
} | |
var s = "563000655734469485" | |
revrot(s, 4) | |
s = "56300065573446948588855" | |
revrot(s, 3) | |
s = "56300065573446948588855200928875449742090" | |
revrot(s, 6) | |
s = "56300065573446948588855200928875449742090827299285754137212" | |
revrot(s, 11) | |
}); | |
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("Reverse or rotate #jsbench #jsperf"); | |
console.log(new Array(30).join("-")); | |
suite.run(); | |
}); |
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