Tutorial by Examples: ha

To generate characters, you can utilize the thread-local random number generator function, random. fn main() { let tuple = rand::random::<(f64, char)>(); println!("{:?}", tuple) } For occasional or singular requests, such as the one above, this is a reasonable efficien...

How to reference a default folder and the possible limitations of this technique. How to reference any single folder at any depth within any accessible store. How to display the full name of a referenced folder. How to reference one of the many, many available libraries that provide functionali...

Most of functions in D3.js accept an anonymous function as an argument. The common examples are .attr, .style, .text, .on and .data, but the list is way bigger than that. In such cases, the anonymous function is evaluated for each selected element, in order, being passed: The current datum (d) ...

A store is a file in which Outlook stores emails, calendar items, notes, tasks and so on. A store may contain Outlook standard folders such as “Inbox” and “Sent Items”. A store may also contain user created folders. Both Outlook standard folders and user created folders may contain user created...

Did your version of Outlook need you to add the Development tab? If so, you will not need to repeat this process until you next have a new Outlook installation. Come back here when that happens. Remember how to enter the Visual Basic Editor. Remember how to create and rename a module.

HAML (HTML abstraction markup language) is a beautiful and elegant way to describe and design the HTML of your views. Instead of opening- and closing tags, HAML uses indentation for the structure of your pages. Basically, if something should be placed within another element, you just indent it by us...

require 'json' data = {"test" => 123} puts JSON.generate(data)

require 'json' document = "{\"test\":123}" puts JSON.parse(document)

require 'json' data = JSON '{"test":23}' # => {"test"=>23} or require 'json' data = JSON['{"test":23}'] # => {"test"=>23}

require 'json' document = JSON 'test' => 23 # => "{\"test\":23}" or require 'json' document = JSON['test' => 23] # => "{\"test\":23}"

Here, a cursor is used to loop through all databases. Futhermore, a cursor from dynamic sql is used to query each database returned by the first cursor. This is to demonstrate the connection-scope of a cursor. DECLARE @db_name nvarchar(255) DECLARE @sql nvarchar(MAX) DECLARE @schema nvarcha...

Having local Class = {} Class.__meta = {__index=Class} function Class.new() return setmetatable({}, Class.__meta) Assuming we want to change the behavior of a single instance object = Class.new() using a metatable, there are a few mistakes to avoid: setmetatable(object, {__call = table.conca...

The Search API provides access to recent tweets*. This is as opposed to the Stream API, which provides search results in real-time. <example> *Note that "the Search API is focused on relevance and not completeness" - Twitter Search API

you can set a Jekyll environment and value, when build time JEKYLL_ENV=production jekyll b JEKYLL_ENV=production jekyll build JEKYLL_ENV=production bundle exec jekyll build if your code contains the bellow snippet, analytics.html will not be included unless your building with JEKYLL_ENV=...

public static class MyHelpers { public static MvcHtmlString MyCustomDiv(this HtmlHelper htmlHelper, string text, object htmlAttributes = null) { var mainTag = new TagBuilder("div"); mainTag.MergeAttributtes(htmlAttributes); mainTag.AddCssClas...

Ubuntu: lshw is a small tool to extract detailed information on the hardware configuration of the machine. It can report exact memory configuration, firmware version, mainboard configuration, CPU version and speed, cache configuration, bus speed, etc. $ sudo lshw | less (or more) $ sudo lshw -ht...

In this example, one of two different ImageViews should be translated from the ChooserFragment to the DetailFragment. In the ChooserFragment layout we need the unique transitionName attributes: <ImageView android:id="@+id/image_first" android:layout_width="wrap_content...

GraphicsContext provides a set of methods to draw and fill geometric shapes. Typically, these methods need coordinates to be passed as their parameters, either directly or in a form of an array of double values. The coordinates are always relative to the Canvas, whose origin is at the top left corne...

Open Function.cs and replace the class code with the following: public class Function { /// <summary> /// A simple function that takes a birth date and returns Age in years /// </summary> /// <param name="input"></param> /// <returns>Age is years&...

A DTD is referred to as an internal DTD if elements are declared within the XML files. To reference it as internal DTD, standalone attribute in XML declaration must be set to yes. An XML that describes a note that contains property to, from and message along with internal DTD will look like: <...