The Cost Of JavaScript

As we build sites more heavily reliant on JavaScript, we sometimes pay for what we send down in ways that we can’t always easily see. In this post, I’ll cover why a little discipline can help if you’d like your site to load & be interactive quickly on mobile devices. tl;dr: less code = less parse/compile + less transfer + less to decompress NetworkWhen most developers think about the cost of JavaS

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JavaScriptの実行までのコストについてを解説した記事。 ダウンロード、パース、実行のステップを踏む。同じサイズのJSと画像のコストは異なる点。 PRPLパターン、Performance Budgetについて。