Tutorial by Examples: c

While building electron apps, usually the backend is in separate folder (js files) and front end is in a separate folder (html files). In the backend, in order to use the database, we have to include the nedb package with the require statement as follows. var Datastore = require('nedb'),db = new Da...

In order to search for records in nedb, again we need to just pass the json containing the search criteria as a parameter to the find function of db object. db.find({ name: 'bigbounty' }, function (err, docs) { // docs is an array containing documents that have name as bigbounty // If no docu...

Commands are used for handling Events in WPF while respecting the MVVM-Pattern. A normal EventHandler would look like this (located in Code-Behind): public MainWindow() { _dataGrid.CollectionChanged += DataGrid_CollectionChanged; } private void DataGrid_CollectionChanged(object sender, S...

How comp, comp-1 ... comp-5 are implemented is implementation dependent. Format Normal Implementation Comp Big endian binary integer Comp-1 4 byte floating point Comp-2 8 byte floating point Comp-3 Packed decimal 123 is stored as x'123c' Comp-5 Binary In...

The default style files generated and compiled by @angular/cli are css. If you want to use scss instead, generate your project with: ng new project_name --style=scss If you want to use sass, generate your project with: ng new project_name --style=sass

Yarn is an alternative for npm, the default package manager on @angular/cli. If you want to use yarn as package manager for @angular/cli follow this steps: Requirements yarn (npm install --global yarn or see the installation page) @angular/cli (npm install -g @angular/cli or yarn global add @an...

This example shows an efficient way of calculating power using template metaprogramming. template <int base, unsigned int exponent> struct power { static const int halfvalue = power<base, exponent / 2>::value; static const int value = halfvalue * halfvalue * power<base, e...

.container has one fixed width for each screen size in bootstrap (xs,sm,md,lg); .container-fluid expands to fill the available width. @media (min-width: 568px) { .container { width: 550px; } } @media (min-width: 992px) { .container { width: 970px; } } @media (min-width: 1...

This is a simple example on how you can automate tests for a console application that interact with standard input and standard output. The tested application read and sum every new line and will provide the result after a single white line is provided. The power shell script write "pass"...

Acknowledgement This example is adapted from this article on type inference What is type Inference? Type Inference is the mechanism that allows the compiler to deduce what types are used and where. This mechanism is based on an algorithm often called “Hindley-Milner” or “HM”. See below some of th...

=> Original Post <= ASP.NET Core uses the ASPNETCORE_ENVIRONMENT environment variable to determine the current environment. By default, if you run your application without setting this value, it will automatically default to the Production environment. > dotnet run Project TestApp (.NETC...

Creation Steps Start Visual Studio 2013 as administrator Install Visual Studio extension Microsoft Visual Studio Installer Projects Create a class library project (WinFormActivex) Create your example window form (MainWindow) Create a new component interface(ILauncher) Create a new security i...

Please me mindful of importing all necessary libraries required. This example uses InMemoryDbService from angular-in-memory-web-api to provide the JSON data from mock API. Live demo service.ts: import { Injectable } from '@angular/core'; import { Headers, Http } from '@angular/http'; import...

The machine has to automatically determine the ideal behavior to maximize its performance. For example: Using reinforcement learning you can also make a computer program that can complete a Mario level (MarI/O - Machine Learning for Video Games).

Many modern Image Processing algorithms use patches are their basic element to work on. For instance one could denoise patches (See BM3D Algorithm). Yet when building the image form the processed patches we have many results for the same pixel. One way to deal with it is taking the average (Empir...

class InitialsImageFactory: NSObject { class func imageWith(name: String?) -> UIImage? { let frame = CGRect(x: 0, y: 0, width: 50, height: 50) let nameLabel = UILabel(frame: frame) nameLabel.textAlignment = .center nameLabel.backgroundColor = .lightGray nameLabel.textColor = .white nam...

CoAP(Constrained Application Protocol) provides a request/response interaction model between application endpoints typically used along with REST.RFC

Open3.popen3 or Open3.capture3: Open3 actually just uses Ruby's spawn command, but gives you a much better API. Open3.popen3 Popen3 runs in a sub-process and returns stdin, stdout, stderr and wait_thr. require 'open3' stdin, stdout, stderr, wait_thr = Open3.popen3("sleep 5s && ls&q...

Exec: exec 'echo "hello world"' or exec ('echo "hello world"') The System Command: system 'echo "hello world"' Will output "hello world" in the command window. or system ('echo "hello world"') The system command can return a true if ...

Steps to create MYSQL database Login to amazon account and select RDS service Select Launch DB Instance from the instance tab By defaul MYSQL Community Edition will be selected, hence click the select button Select the database purpose, say production and click next step Provide the mysql ver...