Tutorial by Examples: g

Dockerization of ASP.NET Application requires a Dockerfile for configuration and running it as a docker container. FROM microsoft/dotnet:latest RUN apt-get update && apt-get install sqlite3 libsqlite3-dev COPY . /app WORKDIR /app RUN ["dotnet", "restore"] ...

"Data": { "DefaultConnection": { "ConnectionString": "Host=localhost;Username=postgres;Password=******;Database=postgres;Port=5432;Pooling=true;" } },

First of all, the problem of handling spaces in arguments is NOT actually a Java problem. Rather it is a problem that needs to be handled by the command shell that you are using when you run a Java program. As an example, let us suppose that we have the following simple program that prints the siz...

At first, You should create database with mysql, phpMyAdmin, HeidiSQL or another instruments to work with Database and let user create new one. After that procedure, You should provide access to database for project. You need to go into file /path/to/your/project/config/app.php,then look up for Da...

Sinse structs are value types all the data is copied on assignment, and any modification to the new copy does not change the data for the original copy. The code snippet below shows that p1 is copied to p2 and changes made on p1 does not affect p2 instance. var p1 = new Point { x = 1, y =...

We make use of Dispatches great Meteor Github Packages (mgp) package: npm install --save mgp Then, add the following command to your package.json scripts: "mgp": "mgp" Create a file named git-packages.json in your project root. Add a config for every (private) Meteor Gith...

Append the following command to the Codeship setup commands: meteor npm run mgp Now, we need to give Codeship access to these private repositories. There is a Codeship documentation article describing this process in detail but here are the steps that you have to take for Github: Create a new...

Let's say we have two tables (A and B) and some of their rows match (relative to the given JOIN condition, whatever it may be in the particular case): We can use various join types to include or exclude matching or non-matching rows from either side, and correctly name the join by picking the cor...

To create new archive open zipfile with write mode. import zipfile new_arch=zipfile.ZipFile("filename.zip",mode="w") To add files to this archive use write() method. new_arch.write('filename.txt','filename_in_archive.txt') #first parameter is filename and second parameter i...

Import Element Tree module and open xml file, get an xml element import xml.etree.ElementTree as ET tree = ET.parse('sample.xml') root=tree.getroot() element = root[0] #get first child of root element Element object can be manipulated by changing its fields, adding and modifying attributes, a...

Install openfire or any chat server in your system or on server. For more details click here. Create android project and add these libraries in gradle: compile 'org.igniterealtime.smack:smack-android:4.2.0' compile 'org.igniterealtime.smack:smack-tcp:4.2.0' compile 'org.igniterealtime.smack:smac...

Create a class name ErrorMatcher inside your test package with below code: public class ErrorMatcher { @NonNull public static Matcher<View> withError(final String expectedErrorText) { Checks.checkNotNull(expectedErrorText); return new BoundedMatcher<View, ...

All we need are: ViewPager, TabLayout and 2 drawables for selected and default dots. Firstly, we have to add TabLayout to our screen layout, and connect it with ViewPager. We can do this in two ways: Nested TabLayout in ViewPager <android.support.v4.view.ViewPager android:id="@+i...

To publish a crate on crates.io, you must log in with Cargo (see 'Connecting Cargo to a Crates.io Account'). You can package and publish your crate with the following commands: cargo package cargo publish Any errors in your Cargo.toml file will be highlighted during this process. You should en...

Accounts on crates.io are created by logging in with GitHub; you cannot sign up with any other method. To connect your GitHub account to crates.io, click the 'Login with GitHub' button in the top menu bar and authorise crates.io to access your account. This will then log you in to crates.io, assumi...

The default way to find installed packages with CMake is the use the find_package function in conjunction with a Find<package>.cmake file. The purpose of the file is to define the search rules for the package and set different variables, such as <package>_FOUND, <package>_INCLUDE_D...

On Unix-like operating systems, it is possible to use the pkg-config program to find and configure packages that provides a <package>.pc file. In order to use pkg-config, it is necessary to call include(FindPkgConfig) in a CMakeLists.txt. Then, there are 2 possible functions: pkg_search_mo...

String macros do not come with built-in interpolation facilities. However, it is possible to manually implement this functionality. Note that it is not possible to embed without escaping string literals that have the same delimiter as the surrounding string macro; that is, although ""&quot...

Adding a Product to a Shopping Cart The following example demonstrates how to Add a product (or anything) to a Database Table asynchronously, using AJAX, and TypeScript. declare var document; declare var xhr: XMLHttpRequest; window.onLoad = () => { Start(); }; function Start() { ...

Outer joins return all the rows from one or both tables, plus matching rows. Table People PersonID FirstName 1 Alice 2 Bob 3 Eve Table Scores PersonID Subject Score 1 Math 100 2 Math 54 2 Science 98 Left joining the tables: Select * f...