A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
,elem.offsetTop
,elem.offsetWidth
,elem.offsetHeight
,elem.offsetParent
Currently considering https://github.com/webdriverio/webdrivercss
Core Goals:
- Can test in up-to-date versions of all major browsers
- Can test on up-to-date versions of all major OSes
- Can test in IE9 (because Bootstrap v4 will support IE9+)
- Don't want to have to setup/maintain our own cluster of VMs running all the necessary OSes (and all the versions of Windows)
- Workflow for management of reference/baseline/norm screenshots
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.