lighthouse_impact.md

Lighthouse impact

How to use ligthouse impact?

A js file exports lighthouseReport. This file starts a headless chrome and measure lighthouse score.

This file can also be runned locally as shown below.

> node ./scripts/lighthouse.mjs

-> file:///Users/dmail/jsenv-template-pwa/scripts/lighthouse_report.json
-> file:///Users/dmail/jsenv-template-pwa/scripts/lighthouse_report.html
{
  "performance": 0.99,
  "accessibility": 0.76,
  "best-practices": 0.93,
  "seo": 0.85,
  "pwa": 0.6
}

lighthouse_report.html can be opened in a browser as shown in screenshot below.

How to remove lighthouse impact?

1. Remove "lighthouse" from "scripts" in package.json
2. Delete .github/workflows/pr_impact/report_lighthouse_impact.mjs
3. Delete scripts/lighthouse.mjs
4. Remove "@jsenv/lighthouse-impact" from "devDependencies" in package.json