We've been busy Perf Prereqs Common Perf Strategies Perf Mechanics What's Next in JS Perf?
Javascript Performance
We've been busy Perf Prereqs Common Perf Strategies Perf Mechanics What's Next in JS Perf?
JavaScript Start-up Performance – Dev Channel – Medium
Update: The Cost Of JavaScript In 2019 is now available to read. As web developers, we know how easy it is to end up with web page bloat. But loading a webpage is much more than shipping bytes down the wire. Once the browser has downloaded our page’s scripts it then has to parse, interpret & run them. In this post, we’ll dive into this phase for JavaScript, why it might be slowing down your app’s
Using requestIdleCallback | Blog | Chrome for Developers
Many sites and apps have a lot of scripts to execute. Your JavaScript often needs to be run as soon as possible, but at the same time you don’t want it to get in the user’s way. If you send analytics data when the user is scrolling the page, or you append elements to the DOM while they happen to be tapping on the button, your web app can become unresponsive, resulting in a poor user experience. Th
You’re Optimizing The Wrong Things | Eric Leads
It seems like every time somebody suggests to the JavaScript world that there’s a different (often better) way to do things than the status quo, the knee-jerk response is to say that the old way is faster, and start pulling out perf scores. That’s all well and good, but by that standard, we should all be writing everything in C. The perf differences between one technique and another in JavaScript
Effectively managing memory at Gmail scale | Articles | web.dev
Effectively managing memory at Gmail scale Stay organized with collections Save and categorize content based on your preferences. Introduction While JavaScript employs garbage collection for automatic memory management, it is not a substitute for effective memory management in applications. JavaScript applications suffer from the same memory related problems that native applications do, such as me
Script-injected "async scripts" considered harmful - igvita.com
By Ilya Grigorik on May 20, 2014 Synchronous scripts are bad because they force the browser to block DOM construction, fetch the script, and execute it before the browser can continue processing the rest of the page. This, of course, should not be news, and is the reason why we have been evangelizing the use of asynchronous scripts. Here is the canonical example: <!-- BAD: blocking external script
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Effective web performance tuning for smartphone