npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

lz-front-monitor

v1.1.3

Published

一个无痕埋点前端监控的包

Readme

monitor-webpack

npm adduser

npm publish

npm install lz-front-monitor

#应用前端监控 monitor = new Monitor(); monitor.listen(() => {});

jsError { title: '', //页面标题 url: '', //页面url timestamp: '', // 时间戳 kind: 'stability', //监控指标的大类 type: 'error', //小类型 errorType: 'jsError', //js执行错误 message: '', //错误信息 userAgent: '', //浏览器类型 filename: '', //访问的文件名 position: '', //行列信息 stack: '', //堆栈信息
selector: '', //选择器 }

promiseError { title: '', //页面标题 url: '', //页面url timestamp: '', // 时间戳 kind: 'stability', //监控指标的大类 type: 'error', //小类型 errorType: 'jsError', //js执行错误 message: '', //错误信息 userAgent: '', //浏览器类型 filename: '', //访问的文件名 position: '', //行列信息 stack: '', //堆栈信息
selector: '', //选择器 }

FP first paint 首次绘制时间 非dom的背景一类的绘制 FCP first content paint 首次内容绘制时间 dom元素的绘制 FMP first Meaningful Paint 首次有意义绘制 需要dom节点声明自己为有意义的节点 dom.setAttribute('elementtiming', 'meaningful) LCP largest contentful paint 最大内容绘制 代表在viewport中最大的页面元素加载的时间 DCL domContentLoaded dom加载完成 当html文档被完全加载和解析完成之后 DOMContentLoaded 事件被触发,无需等待样式表,图像和子框架加载,完成加载 L onload 当依赖的资源全部加载完毕之后才会触发 TTI time to interactive 可交互时间 用于标记应用已进行视觉渲染并能可靠响应用户输入的时间点 FID first input Delay 首次输入延迟 用户首次和页面交互到页面响应交互的时间