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AWK by examples

AWK is string manipulation language, used largely in UNIX systems. The idea behind AWK was to create a versatile language to use when working on files, which wasn't too complex to understand. AWK has some other variants, but the main concept is the same, just with additional features. These other v...

awk • Getting started with awk

IntelliJ/Webstorm Configuration

Make sure that the NodeJS plugin is enabled Select your run configurations (screen) Select + > Node.js Remote Debug Make sure you enter the port selected above as well as the correct host Once those are configured simply run the debug target as you normally would and it will...

Node.js • Remote Debugging in Node.JS

Installing Package Control

If you are using Sublime Text 3 then the simplest way to install Package Control is to select Install Package Control in the Tools menu or in the Command Palette and Sublime Text will install it automatically. Manually Installing: For Sublime Text 2, older versions of Sublime Text 3, or if you hav...

sublimetext3 • Package Control

Track pages called by AJAX and non-html content

To track so called "virtual pageviews", use the ga('send') method right after your asynchronous request: Syntax: ga('send', 'pageview', 'path to your virtual page'); Example (Simple Link): <a href="http://example.com/my.pdf" onClick="ga('send', 'pageview', '/virtu...

google-analytics • Getting started with google-analytics

Application of `ReplaceAll` and `ReplaceRepeated`

Example of how ReplaceAll only applies a rule at most once, while ReplaceRepeated will do so in a loop but always restart application from the first rule. x + a /. { a_ + z :> (Print[0]; DoneA), a_ + x :> (Print[1]; y + z), a_ + y :> (Print[2]; DoneB)} (* Prints "1&quot...

wolfram-mathematica • Evaluation Order

Here's an example of how to turn radio buttons to button boxes:

import tkinter as tk root = tk.Tk() rbvar = StringVar() rbvar.set(" ") rb1 = tk.Radiobutton(root, text="Option 1", variable=rbvar, value='a', indicatoron=0) rb1.pack() rb2 = tk.Radiobutton(root, text="Option 2", variable=rbvar, value='b', indicatoron=0) rb2...

tkinter • The Tkinter Radiobutton widget

Installing Elasticsearch and Kibana on CentOS 7

In order to run Elasticsearch, a Java Runtime Environment (JRE) is required on the machine. Elasticsearch requires Java 7 or higher and recommends Oracle JDK version 1.8.0_73. So, be sure if you have Java in your system. If not, then follow the procedure: # Install wget with yum yum -y install w...

Elasticsearch • Getting started with Elasticsearch

Behavior Implementation

using System.Windows; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interactivity; namespace MyBehaviorAssembly { public class SliderDragEndValueBehavior : Behavior<Slider> { public static readonly DependencyProperty ValueProper...

wpf • Slider Binding: Update only on Drag Ended

XAML Usage

<UserControl x:Class="Example.View" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"...

wpf • Slider Binding: Update only on Drag Ended

break out of incomplete expression

When you have entered something into IEx which expects a completion, such as a multiline string, IEx will change the prompt to indicate that it is waiting for you finish by changing the prompt to have an ellipsis (...) rather than iex. If you find that IEx is waiting for you to finish an expression...

Elixir Language • IEx Console Tips & Tricks

Integrate Firebase Real-Time database with an Android application

How to implement Firebase Real-Time database in Android applications. Setup/Installation: First, install the Firebase SDK (guide) Register your project using the Firebase console After successfuly completing the two steps above, add the following dependency in your application level ...

firebase-database • Firebase Real-Time Database with Android

Loading All The Plugins from Package.JSON

Assuming , you have a grasp of how to install gulp, let us dive right down to requiring all the gulp- dependencies from package.json under your projects root folder. In case you do not have a gulpfile yet , please create an empty file with the name gulpfile.js First , we require gulp. like so: v...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Installing Plugins for Responsive images|Css Minification|Js minification

Our goal , is to Make your Images conform to widths and scale appropriately, by generating a battery of images of varied widths, and to minify them Lint your Javascript Minimize your assets - JS/CSS/HTML , thus enabling you to host a lighter than lightest code Watch the css/js/image files for ...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Anatomy of a gulp function

[Function <name>] (glob) { $.src(glob) .pipe([plugin 1]) .pipe([plugin 2]) . . . .pipe([plugin n]) .pipe( $.dest(<destination-name>) } Note pipe is a method that streams all the files matching the glob input , to our plugins( minifyhtml in this case) . It is simple ...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Anatomy of a gulp task

The anatomy of a task definition is like so: $.task(<taskname> , [dependencies] , <body>); dependencies , is an array of tasks that HAVE to finish before the current task you are defining , runs. More like forcing a synchronous execution instead of the default Asynchronous functionalit...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Adding Gulp Tasks

So, we now have A function defined Above to optimise Styles A function defined Above to optimise scripts A function defined Above to optimise HTML A function to generate multiple images per image Above All we need to do now, is to invoke them when needed. Let us write our tasks according t...

gulp • Comprehensive Guide to a Front-end Workflow Automation with Gulpjs -1 of 2

Setting up Browser sync And Configuring Watchers for Style and Script

NOTE This page illustrates use of gulp plugins like browser-sync , gulp-watch and run-sequence , and continues discussing gulp-workflow-automation from where we left off at Gulpjs-workflow-automation-1 of 2. In case you landed here , consider going through that post first. Default Task ...

gulp • Comprehensive Guide to a Front end Workflow with Gulpjs 2 of 2

Defining a Default Task

So now, let us finish the gulpfile code , by defining a Default task. the default task is the one that runs, when you just say gulp on a command prompt under the root of your project. $.task('default', ['generateResponsiveImages'], function() { $.start('watchdog'); console.log('Starting In...

gulp • Comprehensive Guide to a Front end Workflow with Gulpjs 2 of 2

Double Tap

private float minScale = 1f; private float doubleTapScale = 2f; private float maxScale = 4f; private void SetUpDoubleTapZoom() { imageViewToZoom.ContentMode = UIViewContentMode.ScaleAspectFit; scrollView.MaximumZoomScale = maxScale; scrollView.MinimumZoomScale = minScale; ...

Xamarin.iOS • UIImageView zoom in combination with UIScrollView

Basic example

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twitter-bootstrap • List group