Tutorial by Examples: l

fillStyle (a path styling attribute)

context.fillStyle=color Sets the color that will be used to fill the interior of the current path. These are color options (these must be quoted): A CSS named color, for example context.fillStyle='red' A hex color, for example context.fillStyle='#FF0000' An RGB color, for example ...

html5-canvas • Path (Syntax only)

lineWidth (A path styling attribute)

context.lineWidth=lineWidth Sets the width of the line that will stroke the outline of the path <!doctype html> <html> <head> <style> body{ background-color:white; } #canvas{border:1px solid red; } </style> <script> window.onload=(function(){...

html5-canvas • Path (Syntax only)

shadowColor, shadowBlur, shadowOffsetX, shadowOffsetY (path styling attributes)

shadowColor = color // CSS color shadowBlur = width // integer blur width shadowOffsetX = distance // shadow is moved horizontally by this offset shadowOffsetY = distance // shadow is moved vertically by this offset This set of attributes will add a shadow around a path. Bo...

html5-canvas • Path (Syntax only)

createLinearGradient (creates a path styling object)

var gradient = createLinearGradient( startX, startY, endX, endY ) gradient.addColorStop(gradientPercentPosition, CssColor) gradient.addColorStop(gradientPercentPosition, CssColor) [optionally add more color stops to add to the variety of the gradient] Creates a reusable linear gradient (object...

html5-canvas • Path (Syntax only)

createRadialGradient (creates a path styling object)

var gradient = createRadialGradient( centerX1, centerY1, radius1, // this is the "display' circle centerX2, centerY2, radius2 // this is the "light casting" circle ) gradient.addColorStop(gradientPercentPosition, CssColor) gradient.addColorStop(gradientPerce...

html5-canvas • Path (Syntax only)

nginx server block

Once you have setup and configured the php5-fpm and wordpress settings you can configure the /etc/nginx/conf/nginx.conf file as below. You need to define the location blocks inside the server block and rewrite the url there as defined. server { listen 443 ssl; server_name abc.co.uk; ...

nginx • Wordpress blog integration with rails application using nginx

Chaining multiple iterators together

Use itertools.chain to create a single generator which will yield the values from several generators in sequence. from itertools import chain a = (x for x in ['1', '2', '3', '4']) b = (x for x in ['x', 'y', 'z']) ' '.join(chain(a, b)) Results in: '1 2 3 4 x y z' As an alternate constructo...

Python Language • Itertools Module

Function with one template

import std.stdio; T min(T)(in T arg1, in T arg2) { return arg1 < arg2 ? arg1 : arg2; } void main() { //Automatic type inference writeln(min(1, 2)); //Explicit type writeln(min!(ubyte)(1, 2)); //With single type, the parenthesis might be ommited ...

D Language • Templates

Defining functions for calling from template

package main import ( "fmt" "net/http" "os" "text/template" ) var requestTemplate string = ` {{range $i, $url := .URLs}} {{ $url }} {{(status_code $url)}} {{ end }}` type Requests struct { URLs []string } func main() {...

Go • Templates

Test NGINX configuration file

You can check for syntax errors and referenced files in an NGINX configuration file before running it with: nginx -t Alternatively you can run service script service nginx configtest While both of these commands will tell you if your new nginx configuration is ok [without killing your curren...

nginx • Nginx Configurations

Specify configuration file to load

nginx -c <file name> Start NGINX with an explicit configuration file.

nginx • Nginx Configurations

JSON with play-json

play-json uses implicit formats as other json frameworks SBT dependency: libraryDependencies += ""com.typesafe.play" %% "play-json" % "2.4.8" import play.api.libs.json._ import play.api.libs.functional.syntax._ // if you need DSL DefaultFormat contains defaul...

Scala Language • JSON

Enable Compression (Apache 2.0+)

Enabling gzip compression can reduce the size of the transferred response by up to 90%, which can significantly reduce the amount of time to download the resource, reduce data usage for the client, and improve the time to first render of your pages. — PageSpeed Insights Compression can be ena...

Hypertext Access file • Speed Optimization

Leverage Browser Caching (Apache 2.0+)

Fetching resources over the network is both slow and expensive: the download may require multiple roundtrips between the client and server, which delays processing and may block rendering of page content, and also incurs data costs for the visitor. All server responses should specify a caching p...

Hypertext Access file • Speed Optimization

Logical AND and OR operators

These operators have the usual precedence in C++: AND before OR. // You can drive with a foreign license for up to 60 days bool can_drive = has_domestic_license || has_foreign_license && num_days <= 60; This code is equivalent to the following: // You can drive with a foreign licens...

C++ • operator precedence

Using Condition Variables

A condition variable is a primitive used in conjunction with a mutex to orchestrate communication between threads. While it is neither the exclusive or most efficient way to accomplish this, it can be among the simplest to those familiar with the pattern. One waits on a std::condition_variable with...

C++ • Threading

Overloading on constness and volatility

Passing a pointer argument to a T* parameter, if possible, is better than passing it to a const T* parameter. struct Base {}; struct Derived : Base {}; void f(Base* pb); void f(const Base* pb); void f(const Derived* pd); void f(bool b); Base b; f(&b); // f(Base*) is better than f(const...

C++ • Overload resolution

Installing Plugin from external source

java -jar [Path to client JAR] -s [Server address] install-plugin [Plugin ID] The client JAR must be the CLI JAR file, not the same JAR/WAR that runs Jenkins itself. Unique IDs can be found on a plugins respective page on the Jenkins CLI wiki (https://wiki.jenkins-ci.org/display/JENKINS/Plugins) ...

jenkins • Getting started with jenkins

Portuguese DateTime Localization

Highcharts.setOptions({ lang: { loading: 'Aguarde...', months: ['Janeiro', 'Fevereiro', 'Março', 'Abril', 'Maio', 'Junho', 'Julho', 'Agosto', 'Setembro', 'Outubro', 'Novembro', 'Dezembro'], weekdays: ['Domingo', 'Segunda', 'Terça', 'Quarta', 'Quinta', 'Sex...

highcharts • Localization

Russian DateTime Localization

Highcharts.setOptions({ lang: { loading: 'Загрузка...', months: ['Январь', 'Февраль', 'Март', 'Апрель', 'Май', 'Июнь', 'Июль', 'Август', 'Сентябрь', 'Октябрь', 'Ноябрь', 'Декабрь'], weekdays: ['Воскресенье', 'Понедельник', 'Вторник', 'Среда', 'Четверг', 'П...

highcharts • Localization