(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
var http = require("http"), | |
url = require("url"), | |
path = require("path"), | |
fs = require("fs") | |
port = process.argv[2] || 8888; | |
http.createServer(function(request, response) { | |
var uri = url.parse(request.url).pathname | |
, filename = path.join(process.cwd(), uri); |
--- Actions --- | |
$Copy <M-C> | |
$Cut <M-X> <S-Del> | |
$Delete <Del> <BS> <M-BS> | |
$LRU | |
$Paste <M-V> | |
$Redo <M-S-Z> <A-S-BS> | |
$SearchWeb <A-S-G> | |
$SelectAll <M-A> | |
$Undo <M-Z> |
We have moved: https://github.com/magnetikonline/linuxmicrosoftievirtualmachines
Due to the popularity of this Gist, and the work in keeping it updated via a Gist, all future updates will take place at the above location. Thanks!
#!/bin/bash | |
# Install Spark on CentOS 7 | |
yum install java -y | |
java -version | |
yum install wget -y | |
wget http://downloads.typesafe.com/scala/2.11.7/scala-2.11.7.tgz | |
tar xvf scala-2.11.7.tgz | |
sudo mv scala-2.11.7 /usr/lib | |
sudo ln -s /usr/lib/scala-2.11.7 /usr/lib/scala |
I know I'm late with this article for about 5 years or so, but people are still using Python 2.x, so this subject is relevant I think.
Some facts first:
str
is an 8-bit string.unicode
is for strings of unicode code points.Get the current Unix timestamp (seconds from 1970-01-01T00:00:00Z) in SQL.
UNIX_TIMESTAMP()
CAST(EXTRACT(epoch FROM NOW()) AS INT)
DATEDIFF(s, '1970-01-01', GETUTCDATE())
(CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - DATE'1970-01-01') * 86400
// ==UserScript== | |
// @name 百度网盘aria2导出工具 | |
// @author acgotaku311 | |
// @description 一个方便吧百度网盘的Aria2rpc导出的脚本。 | |
// @encoding utf-8 | |
// @include http://*n.baidu.com/s/* | |
// @include http://*n.baidu.com/disk/home* | |
// @include http://*n.baidu.com/share/link* | |
// @include https://*n.baidu.com/s/* | |
// @include https://*n.baidu.com/disk/home* |