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Photo by Luke Chesser on Unsplash

Introduction

Javascript is at the forefront of creating a beautiful user experience or a horrific latency filled nightmare once a site loads. It holds great responsibility for implementing complex features, adding interactivity, and the like on a page. And as web technologies progress over the years, so does the amount of javascript at play. So it’s vital that we know what we’re releasing to the world is not one of the culprits stalling the browser’s main process. The only way we can do so is by empirically verifying it with meaningful data. …

Susan Thai

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