Tutorial by Examples: el

Blue/Green deployment is a release technique that reduces downtime and risk by running two identical production environments (one called "Blue", the other called "Green"). At any one time, only one of the environments is serving live traffic, while the other is sitting idle. Whe...

Powershell supports standard conditional logic operators, much like many programming languages. These allow certain functions or commands to be run under particular circumstances. With an if the commands inside the brackets ({}) are only executed if the conditions inside the if(()) are met $test =...

Query: query:/sitecore/content/home/foo/bar Result bar

Current Item: bar (path: /sitecore/content/home/foo/bar) Query: query:./child/grandchild Result: grandchild (path: /sitecore/content/home/foo/bar/child/grandchild)

UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 320, 480)]; label.backgroundColor=[UIColor lightGrayColor]; NSMutableAttributedString *attributedString; attributedString = [[NSMutableAttributedString alloc] initWithString:@"Apply Underlining"]; [attributedString addAttrib...

Copy paste this code and launch your program : @Theme(ValoTheme.THEME_NAME) //[optional] adds Vaadin built in theming public class SampleUI extends UI { @Override protected void init(VaadinRequest request) { final VerticalLayout rootLayout = new VerticalLayout(); Label...

First import #import <QuartzCore/QuartzCore.h> into your ViewController class. Here is how I set my view in code UIView *view1=[[UIView alloc]init]; view1.backgroundColor=[UIColor colorWithRed:255/255.0 green:193/255.0 blue:72/255.0 alpha:1.0]; CGRect view1Frame = view1.frame; view1Frame....

So far, we defined how easy it is to write a custom element that hides the messy html behind it and gives the user, an easy to write and brief markup. Time to code it! Our custom element, to display the bar below the hero image should Accept a Link to be shared Accept a Link to the Repo to be ...

<link rel="import" href="../bower_components/iron-icon/iron-icon.html"> <link rel="import" href="../bower_components/iron-icons/iron-icons.html"> <link rel="import" href="../bower_components/iron-icons/social-icons.html"&gt...

On whichever page you want to display your product / project portfolio, invoke the custom element like so: <article id="project-neighbourhood"> <div class="row"> <div class="col-12 hero"> <img src="path-to-hero-image...

If the tables use InnoDB, MySQL automatically uses row level locking so that multiple transactions can use same table simultaneously for read and write, without making each other wait. If two transactions trying to modify the same row and both uses row level locking, one of the transactions waits f...

;;Recursively print the elements of a list (defun print-list (elements) (cond ((null elements) '()) ;; Base case: There are no elements that have yet to be printed. Don't do anything and return a null list. (t ;; Recursive case ;; Print the next elem...

For performance reasons, or due to the existence of mature C libraries, you may want to call C code from a Haskell program. Here is a simple example of how you can pass data to a C library and get an answer back. foo.c: #include <inttypes.h> int32_t foo(int32_t a) { return a+1; } F...

Find div with id="article" and strip out all the inner script tags. #!/usr/bin/env stack -- stack --resolver lts-7.1 --install-ghc runghc --package text --package lens --package taggy-lens --package string-class --package classy-prelude {-# LANGUAGE NoImplicitPrelude #-} {-# LANGUAGE O...

Here is an example of an Azure Powershell automation runbook that deletes any blobs in an Azure storage container that are older than a number of days. This may be useful for removing old SQL backups to save cost and space. It takes a number of parameters which are self explanatory. Note: I have ...

Using compose with a View, ViewModel and Model is an easy way to reuse and combine different Views and ViewModels. Given the following View and ViewModel (applies to each alternative below): src/greeter.html <template> <h1>Hello, ${name}!</h1> </template> src/gree...

class Program { static void Main(string[] args) { //Initialize a new container WindsorContainer container = new WindsorContainer(); //Register IService with a specific implementation and supply its dependencies container.Register(Component.For<ISer...

IF lv_foo = 3. WRITE: / 'lv_foo is 3'. ELSEIF lv_foo = 5. WRITE: / 'lv_foo is 5'. ELSE. WRITE: / 'lv_foo is neither 3 nor 5'. ENDIF.

Important: Be sure to set up the server-side implementation as per the instructions here, otherwise uploads will not work. To get started, create a new HTML document. Download the script as per the "Installation" example, and include it in your head tag like so (remebering to replace the ...

Go through the steps: Add 'NSAppleMusicUsageDescription' to your Info.plist for the privacy authority. Make sure your music is available in your iPhone. It will not work in the simulator. iOS 10.0.1 import UIKit import AVFoundation import MediaPlayer class ViewController: UIViewControll...