Tutorial by Examples: u

This example shows how to use mathematical operations with counters. It may be useful for loops in latex. Addition: \addtocounter{num}{n} this command adds n to num, where num is a counter and n is a positive integer. Subtraction: \addtocounter{num}{-n} this command subtracts n from num, where n...

C++03 Declares a variable to have automatic storage duration. It is redundant, since automatic storage duration is already the default at block scope, and the auto specifier is not allowed at namespace scope. void f() { auto int x; // equivalent to: int x; auto y; // illegal in C++; ...

Nested for loops may be used to iterate over a number of unique iterables. result = [] for a = iterable_a for b = iterable_b push!(result, expression) end end Similarly, multiple iteration specifications may be supplied to an array comprehension. [expression for a = iterabl...

This Example using Standard EXE Project With addition of a Module File. Create New "Standard EXE" Project. So here, a Form will get added to the Project by default. Add a Module File to the Project Place a Command Button on the Form Create Command Button Click Event. Module code...

Adding a video that will autoplay on a loop and has no controls or sound. Perfect for a video header or background. <video width="1280" height="720" autoplay muted loop poster="video.jpg" id="videobg"> <source src="video.mp4" type="...

Glyphicons can be used in text, buttons, toolbars, navigation, forms, etc (Source: W3Schools). Glyphicons are basically icon forms that can be used to style any of the aforementioned. These examples outline the usage of glyphicons inside two types of buttons by simply using a span inside the buttons...

There are many responsive scenarios where it's necessary to have column units exceeding 12 in a single .row element. This is known as column wrapping. If more than 12 columns are placed within a single row, each group of extra columns will, as one unit, wrap onto a new line. For example, cons...

Loops are useful in Tikz. The following code draws a clock without numbers: \documentclass{article} \usepackage{ifthen} \usepackage{intcalc} \usepackage{tikz} \newcounter{num} \begin{document} \begin{tikzpicture} \makeatletter \setcounter{num}{1} \newcounter{angle} ...

You can create custom dialogs which contains many component and perform many functionality on it. It behaves like second stage on owner stage. In the following example an application that shows person in the main stage tableview and creates a person in a dialog (AddingPersonDialog) prepared. GUIs c...

The following regex includes 50 states and also Commonwealth/Territory (see www.50states.com): regex <- "(A[LKSZR])|(C[AOT])|(D[EC])|(F[ML])|(G[AU])|(HI)|(I[DLNA])|(K[SY])|(LA)|(M[EHDAINSOT])|(N[EVHJMYCD])|(MP)|(O[HKR])|(P[WAR])|(RI)|(S[CD])|(T[NX])|(UT)|(V[TIA])|(W[AVIY])" For exampl...

The following regular expression: us.phones.regex <- "^\\s*(\\+\\s*1(-?|\\s+))*[0-9]{3}\\s*-?\\s*[0-9]{3}\\s*-?\\s*[0-9]{4}$" Validates a phone number in the form of: +1-xxx-xxx-xxxx, including optional leading/trailing blanks at the beginning/end of each group of numbers, but not ...

In a terminal run sudo apt-get install maven Once the install is over check that it works correctly with mvn -v the output should look like: Apache Maven 3.3.9 Maven home: /usr/share/maven Java version: 1.8.0_121, vendor: Oracle Corporation Java home: /usr/lib/jvm/java-8-openjdk-amd64/j...

General Properties: An Azimuthal Equidistant projection is best recognized when used in polar areas. It is used in the UN's emblem. From the center point, angle and distance are preserved. But the projection will distort shape and area to achieve this, especially as one moves further from the cente...

You can print log message in the terminal using console.log(). To do so, open a new terminal and run following command for Android: react-native log-android or following command if you are using iOS: react-native log-ios You will now start to see all the log message in this terminal

BFS can be used to find the connected components of an undirected graph. We can also find if the given graph is connected or not. Our subsequent discussion assumes we are dealing with undirected graphs.The definition of a connected graph is: A graph is connected if there is a path between every p...

HTML: <div class="wrapper"> <div class="content"></div> </div> CSS: .wrapper{ min-height: 600px; } .wrapper:before{ content: ""; display: inline-block; height: 100%; vertical-align: middle; } .content { display...

var EmberApp = require('ember-cli/lib/broccoli/ember-app'); module.exports = function(defaults) { var app = new EmberApp(defaults, { // Add options here datatables: { core: true, style: 'bs', extensions: [ { name: 'buttons', extensions: ['colVi...

Suppose we'd like to invoke the JavaScript function JSON.stringify which receives an object, encodes it into a JSON string and returns it. All we'd have to do is write the function signature, mark it as external and annotate it with the @JS annotation: @JS("JSON.stringify") external St...

Go to https://www.blender.org/download/ Choose your operating system Click the proper mirror next to the version of blender for your operating system. You can usually just click the mirror closest to your current location. (more info) Also, at the bottom of the page are also...

In this example, we use this database: "your-project-name" : { "users" : { "randomUserId1" : { "display-name" : "John Doe", "gender" : "male" } "randomUserId2" :...