(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.
(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.
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
Attention: the list was moved to
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Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
\
// http://paulirish.com/2011/requestanimationframe-for-smart-animating/ | |
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating | |
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel | |
// MIT license | |
(function() { | |
var lastTime = 0; | |
var vendors = ['ms', 'moz', 'webkit', 'o']; |
@mixin ie6 { * html & { @content } } | |
#logo { | |
background-image: url("/images/logo.png"); | |
@include ie6 { background-image: url("/images/logo.gif"); } | |
} |
#Refer: http://www.linuxfoundation.org/collaborate/workgroups/networking/netem#Delaying_only_some_traffic | |
#Refer: http://www.bomisofmab.com/blog/?p=100 | |
#Refer: http://drija.com/linux/41983/simulating-a-low-bandwidth-high-latency-network-connection-on-linux/ | |
#Setup the rate control and delay | |
sudo tc qdisc add dev lo root handle 1: htb default 12 | |
sudo tc class add dev lo parent 1:1 classid 1:12 htb rate 56kbps ceil 128kbps | |
sudo tc qdisc add dev lo parent 1:12 netem delay 200ms | |
#Remove the rate control/delay | |
sudo tc qdisc del dev lo root |
/** | |
* create a Google Sheet then go to Tools > Script Editor | |
* Paste this code into the editor. Save. | |
* Publish > Deploy as Web App | |
* Set new version, publish as me, who has access - anyone, even anon. | |
* GET to the URL, add on end ?sheet=[sheet name] | |
* Sheet name is the sheet name, manage appropriately (no spaces or symbols to keep it simple) | |
* Request returns JSON representation of the sheet. | |
*/ |