| <?php | |
| /** | |
| * @file | |
| * Basic demonstration of how to do parallel threads in PHP. | |
| */ | |
| // This array of "tasks" could be anything. For demonstration purposes | |
| // these are just strings, but they could be a callback, class or | |
| // include file (hell, even code-as-a-string to pass to eval()). |
| # Add this snippet to the top of your playbook. | |
| # It will install python2 if missing (but checks first so no expensive repeated apt updates) | |
| # gwillem@gmail.com | |
| - hosts: all | |
| gather_facts: False | |
| tasks: | |
| - name: install python 2 | |
| raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal) |
| #!/bin/bash | |
| # | |
| # GoLang cross-compile snippet for Go 1.6+ based loosely on Dave Chaney's cross-compile script: | |
| # http://dave.cheney.net/2012/09/08/an-introduction-to-cross-compilation-with-go | |
| # | |
| # To use: | |
| # | |
| # $ cd ~/path-to/my-awesome-project | |
| # $ go-build-all | |
| # |
| <?php | |
| class Item | |
| { | |
| private $cost = 100; | |
| public function getTotal($discount = 7) { | |
| return $this->cost *(100+$discount)/100; | |
| } | |
| } |
| #!/bin/bash | |
| apt-get -y update | |
| apt-get -y install nginx-extras build-essential libpcre3-dev libssl-dev libgeoip-dev libpq-dev libxslt1-dev libgd2-xpm-dev | |
| wget -c https://openresty.org/download/openresty-1.13.6.2.tar.gz | |
| tar zxvf openresty-1.13.6.2.tar.gz | |
| cd openresty-1.13.6.2 | |
| ./configure \ | |
| --sbin-path=/usr/sbin/nginx \ | |
| --conf-path=/etc/nginx/nginx.conf \ |
| package main | |
| import ( | |
| "fmt" | |
| "os" | |
| "os/exec" | |
| "syscall" | |
| ) | |
| func main() { |
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
having a web server turned on doesn't necessarily mean you are serving pages on the world wide web. its what allows you to load your own static files (.html, .js etc.) in a browser via http://.
if you're not sure whether or not you have a web server running, no problem! its easy to confirm.
| alias gl="git log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit" |
1) Filter Table
Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.