alok87

package main

import (
        "io/ioutil"
        "os/exec"
        "fmt"
)

// EXAMPLE: echo "Subject: TestnHello" | sendmail -f you@domain.com you@domain.com
// Useful Links: https://gobyexample.com/spawning-processes

paulirish

What forces layout / reflow

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.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

ngpestelos

May 8, 2018

I wrote this four years ago, so instead use this command:

$ docker rmi $(docker images -q -f dangling=true)

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

darklow

# urls.py
urlpatterns = patterns('',
    # ...

    # Example for custom view
    url(r'^admin/custom/$', views.custom_view),

    # ...

    # Admin

zenorocha

(function() {
    
    var script,
        scripts = document.getElementsByTagName('script')[0];
        
    function load(url) {
      script = document.createElement('script');
      script.async = true;
      script.src = url;
      scripts.parentNode.insertBefore(script, scripts);

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

olimortimer

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="js/jquery-1.7.2.min.js"><\/script>')</script>

<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.21/jquery-ui.min.js"></script>
<script>window.jQuery.ui || document.write('<script src="js/jquery-ui-1.8.21.min.js"><\/script>')</script>

<script src="//ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script>
<script>window.swfobject || document.write('<script src="js/swfobject-2.2"><\/script>')</script>

lancejpollard

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">

hagenburger

// Released under MIT license: http://www.opensource.org/licenses/mit-license.php

$('[placeholder]').focus(function() {
  var input = $(this);
  if (input.val() == input.attr('placeholder')) {
    input.val('');
    input.removeClass('placeholder');
  }
}).blur(function() {
  var input = $(this);