如何从benchmark.js中获取报告

Question

当benchmark.js运行一个基准测试并向我展示最快的测试时，我尝试了它，但是我不知道如何从它中得到一个很好的报告--我尝试了如下：

suite.add('My#test', function() {
    console.log("test")
}).on('complete', function() {
        console.log('Fastest is ' + this.filter('fastest').map('name'));
        console.log('stats: ' + suite.stats) // but stats seems undefined, do i miss anything? how come I couldn't find a guide on showing how to print stats?
}).run({ 'async': true });

统计数据似乎没有定义，我有遗漏什么吗？为什么我找不到如何打印数据的指南？我如何得到一份报告，显示我要为每个测试方法运行测试所需的时间、中位数、错误数以及所有这些汇总？谢谢。

Answer 1

你应该使用this

// add listeners 
suite.on('cycle', function(event) {
  console.log(String(event.target));
  console.log(event.target.name);
  console.log(event.target.stats.rme);
  console.log(event.target.stats.sample.length);
  console.log(event.target.count); // The number of times a test was executed.
  console.log(event.target.cycles); // The number of cycles performed while benchmarking.
  console.log(event.target.hz); //The number of executions per second.
})
.on('complete', function() {
    for (var i = 0; i < this.length; i++) {
        console.log(this[i].hz + " ops/sec");
        console.log(this[i].stats.sample.length);
        //console.log(this[i].stats);
    }
  console.log(color('Fastest is ' + this.filter('fastest').map('name'),'green'));
  console.log(color('Slowest is ' + this.filter('slowest').map('name'),'red'));
})
// run async 
.run({ 'async': true });