64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
'use strict';
|
|
|
|
const Benchmark = require('benchmark');
|
|
const benchmarks = require('beautify-benchmark');
|
|
|
|
const suite = new Benchmark.Suite();
|
|
|
|
function slice() {
|
|
return Array.prototype.slice.call(arguments);
|
|
}
|
|
|
|
function slice0() {
|
|
return Array.prototype.slice.call(arguments, 0);
|
|
}
|
|
|
|
function forLoop() {
|
|
const args = new Array(arguments.length);
|
|
for(let i = 0; i < args.length; i++) {
|
|
args[i] = arguments[i];
|
|
}
|
|
return args;
|
|
}
|
|
|
|
console.log('slice(0, 1, 2, 3, 4, 5, 6, 7): %j', slice(0, 1, 2, 3, 4, 5, 6, 7));
|
|
console.log('slice0(0, 1, 2, 3, 4, 5, 6, 7): %j', slice0(0, 1, 2, 3, 4, 5, 6, 7));
|
|
console.log('forLoop(0, 1, 2, 3, 4, 5, 6, 7): %j', forLoop(0, 1, 2, 3, 4, 5, 6, 7));
|
|
|
|
suite
|
|
|
|
.add('Array.prototype.slice.call(arguments)', function() {
|
|
slice(0, 1, 2, 3, 4, 5, 6, 7);
|
|
})
|
|
.add('Array.prototype.slice.call(arguments, 0)', function() {
|
|
slice0(0, 1, 2, 3, 4, 5, 6, 7);
|
|
})
|
|
.add('for(let i = 0; i < args.length; i++) {}', function() {
|
|
forLoop(0, 1, 2, 3, 4, 5, 6, 7);
|
|
})
|
|
|
|
.on('cycle', function(event) {
|
|
benchmarks.add(event.target);
|
|
})
|
|
.on('start', function() {
|
|
console.log('\n arguments to args Benchmark\n node version: %s, date: %s\n Starting...',
|
|
process.version, Date());
|
|
})
|
|
.on('complete', function done() {
|
|
benchmarks.log();
|
|
})
|
|
.run({ async: false });
|
|
|
|
// slice(0, 1, 2, 3, 4, 5, 6, 7): [0,1,2,3,4,5,6,7]
|
|
// slice0(0, 1, 2, 3, 4, 5, 6, 7): [0,1,2,3,4,5,6,7]
|
|
// forLoop(0, 1, 2, 3, 4, 5, 6, 7): [0,1,2,3,4,5,6,7]
|
|
//
|
|
// arguments to args Benchmark
|
|
// node version: v2.4.0, date: Tue Jul 21 2015 01:39:54 GMT+0800 (CST)
|
|
// Starting...
|
|
// 3 tests completed.
|
|
//
|
|
// Array.prototype.slice.call(arguments) x 4,537,649 ops/sec ±1.18% (94 runs sampled)
|
|
// Array.prototype.slice.call(arguments, 0) x 4,605,132 ops/sec ±0.87% (96 runs sampled)
|
|
// for(let i = 0; i < args.length; i++) {} x 30,435,436 ops/sec ±0.91% (93 runs sampled)
|