Public Module Usage
Public Sub LikeThis()
Dim iCount As Integer
Dim sCount As String
iCount = 245
sCount = iCount.PadLeft(4, "0")
Console.WriteLine(sCount)
Console.ReadKey()
End Sub
End Module
Public Module Padding
<Extension>
Pub...
In C# 5.0 and earlier the developer could only suppress warnings by number. With the introduction of Roslyn Analyzers, C# needs a way to disable warnings issued from specific libraries. With C# 6.0 the pragma directive can suppress warnings by name.
Before:
#pragma warning disable 0501
C# 6.0:
...
Ionic Framework
A Cross-platform mobile application development framework using Angular JS and Front End web technologies.
Official website: http://ionicframework.com/
Documentation: http://ionicframework.com/docs/
Installation and Setup
Installation
Ionic required NPM(Node Package Manager) an...
While you can create LaTeX documents using any editor and compiling using the console, there exist several plugins for widely used editors to simplify creating LaTeX documents, and there are specialized LaTeX editors. An exhaustive list of LaTeX editors is available on TeX.SE (the StackExchange site...
[^0-9]
This will match all characters that are not ASCII digits.
If Unicode digits are also to be negated, the following expression can be used, depending on your flavor/language settings:
[^\d]
This can be shortened to:
\D
You may need to enable Unicode character properties support expl...
really_neat.info
name = Really Neat Module
description = Provides a really neat page for your site
core = 7.x
really_neat.module
<?php
/**
* @file
* Hook implementation and shared functions for the Really Neat Module.
*/
/**
* Implements hook_menu().
*/
function really_nea...
private static final int REQUEST_DISCOVERABLE_BT = 2; // Unique request code
private static final int DISCOVERABLE_DURATION = 120; // Discoverable duration time in seconds
// 0 means always discoverable
...
One of the uses of recursion is to navigate through a hierarchical data structure, like a file system directory tree, without knowing how many levels the tree has or the number of objects on each level. In this example, you will see how to use recursion on a directory tree to find all sub-directorie...
Because LINQ uses deferred execution, we can have a query object that doesn't actually contain the values, but will return the values when evaluated. We can thus dynamically build the query based on our control flow, and evaluate it once we are finished:
IEnumerable<VehicleModel> BuildQuery(i...
Generates a storable representation of a value.
This is useful for storing or passing PHP values around without losing their type and structure.
To make the serialized string into a PHP value again, use unserialize().
Serializing a string
$string = "Hello world";
echo serialize($s...
now_dt <- ymd_hms(now(), tz="IST")
now_dt
## [1] "2016-07-22 13:53:09 IST"
round_date() takes a date-time object and rounds it to the nearest integer value of the specified time unit.
round_date(now_dt, "minute")
## [1] "2016-07-22 13:53:00 IST"
r...
Unlike durations, periods can be used to accurately model clock times without knowing when events such as leap seconds, leap days, and DST changes occur.
start_2012 <- ymd_hms("2012-01-01 12:00:00")
## [1] "2012-01-01 12:00:00 UTC"
# period() considers leap year calculati...
GROUP BY is used in combination with aggregation functions. Consider the following table:
orderIduserIdstoreNameorderValueorderDate143Store A2520-03-2016257Store B5022-03-2016343Store A3025-03-2016482Store C1026-03-2016521Store A4529-03-2016
The query below uses GROUP BY to perform aggregated calc...
In CSS3, we can stack multiple background in the same element.
#mydiv {
background-image: url(img_1.png), /* top image */
url(img_2.png), /* middle image */
url(img_3.png); /* bottom image */
background-position: right bottom,
...
The Android specific implementation is a bit more complex because it forces you to inherit from a native Java.Lang.Object and forces you to implement the IOnInitListener interface. Android requires you to provide a valid Android context for a lot of the SDK methods it exposes. Xamarin.Forms exposes ...
Creating an alert dialog
AlertDialog.Builder builder = new AlertDialog.Builder(Context);
builder.SetIcon(Resource.Drawable.Icon);
builder.SetTitle(title);
builder.SetMessage(message);
builder.SetNeutralButton("Neutral", (evt, args) => {
// code here for handling the Neutral...
First of all you need to create a class which extends RecyclerView.ItemDecoration :
public class SimpleBlueDivider extends RecyclerView.ItemDecoration {
private Drawable mDivider;
public SimpleBlueDivider(Context context) {
mDivider = context.getResources().getDrawable(R.drawable.divider_b...
A 2-tuple or a 3-tuple represent a group of related items. (Points in 2D space, RGB values of a color, etc.) A 1-tuple is not very useful since it could easily be replaced with a single int.
A 0-tuple seems even more useless since it contains absolutely nothing. Yet it has properties that make it v...
