目前,我在Jenkins服务器上安装了两个版本的node。 $ n list
node/10.9.0
node/12.14.1 我正在尝试切换到10.9.0版本,用于需要它的特定构建。 我首先尝试了使用n <version>,但最新的12.14.1仍然显示为活动的: $ n 10.9.0
installed : v10.9.0 to /opt/jenkins/n/bin/node
active : v12.14.1 at /bin/node 我也尝试过n use <version>,它只是跟上了一个提示符。 $ n use 10.9.0
> 我读过很多关于
我正在尝试提高我的网站的页面速度,当我使用Chrome Lighthouse审计时,我经常会得到这样的错误:
Lighthouse: FAILED_DOCUMENT_REQUEST. Lighthouse was unable to reliably load the
page you requested. Make sure you are testing the correct URL and that the
server is properly responding to all requests. net::ERR_ACCESS_DENIED.
IMG URL->
我试着找出
假设我想证明1d12 (十二边模)服从矩形分布,2d6服从正态分布。
快速和肮脏的方法是统计大约1000个随机生成的数字,将它们放在一个数组中,然后从那里计算平均值和期望值。
但是,如果我想通过使用运行的总计而不是1000个成员数组来节省内存呢?
我可以这样做吗?
for (i =0; i < 1000; i++){
x = Math.Random(1,6);
runningTotal += x;
}
mean = runningTotal / 1000;
我有一个与柏树自动化有关的项目。我正在尝试在我的项目中添加插件,例如柏树,但是在改变插件中的index.js之后,folder.It显示了
cy.lighthouse() is not a function
index.js文件
const { lighthouse, pa11y, prepareAudit } = require("cypress-audit");
module.exports = (on, config) => {
// `on` is used to hook into various events Cypress emits
// `co
我正在为运行谷歌页面速度测试,并得到以下消息:
> Lighthouse returned error: NO_FCP. Something went wrong with the recording
> the trace over your page load. Please run the Lighthouse again. (NO_FCP)
> (NO_FCP)
有人能帮上忙吗?
在不同的服务器上尝试过,也尝试过不同的URL
我想使用,但在第8行开始的注释中写道:
# pip install lighthouse-python-api (probably have to do this manually)
但是当我尝试的时候,我得到了以下错误:
$ pip install lighthouse-python-api
Downloading/unpacking lighthouse-python-api
Could not find any downloads that satisfy the requirement lighthouse-python-api
No distributions at all fo
Public Class Lighthouse
Public ProductID As String
Public Firstname As String
Public Lastname As String
Public Gender As String
Public Birthdate As String
Public Contact As Integer
Public Email As String
Public Address As String
Public SSS As String
Public TIN
有人知道是什么原因导致这个错误吗?这是Heroku日志中显示的错误。它在本地运行良好。 app[web.1]: Generating Lighthouse report...
app[web.1]: An error! ChromePathNotSetError
app[web.1]: at new LauncherError (/app/node_modules/chrome-launcher/dist/utils.js:37:22)
app[web.1]: at new ChromePathNotSetError (/app/node_modules/chrome-lau
在调用lighthouse时需要传递connection参数
async function lighthouse(url, flags = {}, configJSON, connection) {
// verify the url is valid and that protocol is allowed
if (url && (!URL.isValid(url) || !URL.isProtocolAllowed(url))) {
throw new LHError(LHError.errors.INVALID_URL);
}
// set l