The Cost of Javascript Frameworks

Tim Kadlec's recent post on JavaScript framework performance is destined to become a staple in performance conference discussions for years to come. The wealth of data presented warrants a thorough review, but the key takeaway is clear: websites built with JavaScript frameworks consume significantly more resources than their non-framework counterparts. Angular emerges as the most resource-intensive, while React places the heaviest burden on CPU processing. However, as Kadlec points out:

"...it says very little about the performance of the core frameworks in play and much more about the approach to development these frameworks may encourage."

A critical limitation of the data is the absence of post-first-load usage metrics, a crucial factor in evaluating single-page application (SPA) performance.

Nevertheless, while achieving high performance with frameworks is possible (though even the top 10% of sites in the study aren't exceptionally efficient), the frameworks themselves offer little assistance in mitigating the performance issues that have become prevalent. This mirrors recent discussions surrounding accessibility; the frameworks aren't inherently flawed, but they are uniquely positioned to address the escalating performance concerns.

The above is the detailed content of The Cost of Javascript Frameworks. For more information, please follow other related articles on the PHP Chinese website!