PerfBar
PerfBar Simple way to collect and look at your website performance metrics quickly, that supports budgeting and adding custom metrics. Learn More Install Star on Github Features Simple setup. Just one script, there is no dependencies. Dozens of built-in metrics. You have the ability to add specific metrics for your app. You can disable any metric. Budgeting support for all the metrics.
Steady.js
Steady.js A jank-free module to do logic on the onscroll event without performance regressions in @media-query like conditions. Get Started Install Star on Github How does it work? Steady's main goal is to make the user scrolling jank-free. Below is an explaination on how Steady is working under the hood: First, Steady attaches a handler to the onscroll event, that excutes the trackers (collecting
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