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C++11 introduces what are known as scoped enums. These are enumerations whose members must be qualified with enumname::membername. Scoped enums are declared using the enum class syntax. For example, to store the colors in a rainbow: enum class rainbow { RED, ORANGE, YELLOW, GREE...

db.people.createIndex({name: 1, age: -1}) This creates an index on multiple fields, in this case on the name and age fields. It will be ascending in name and descending in age. In this type of index, the sort order is relevant, because it will determine whether the index can support a sort opera...

The Timeline object allows you to get the execution time for each node in the graph: you use a classic sess.run() but also specify the optional arguments options and run_metadata you then create a Timeline object with the run_metadata.step_stats data Here is an example program that measures...

1. Setup your formatter and routing in Register of (App_Start/WebApiConfig) public static class WebApiConfig { public static void Register(HttpConfiguration config) { GlobalConfiguration.Configuration.Formatters.Clear(); GlobalConfiguration.Configuration.Formatters.Add...

How do you get the number of Debit and Credit transactions? One way to do it is by using count() function as below. > db.transactions.count({cr_dr : "D"}); or > db.transactions.find({cr_dr : "D"}).length(); But what if you do not know the possible values of cr_dr up...

Show a "Hello World!" in message box. MsgBox, Hello World! Show a "Hello World!" in tooltip. #Persistent Tooltip, Hello World! Show a "Hello World!" message in the traybar edit. #Persistent TrayTip,, Hello World! Prints "Hello, World" to Standard...

iPhone is a smartphone made by Apple that combines an iPod, a tablet PC, a digital camera and a cellular phone. The device includes Internet browsing and networking capabilities. Operating System The iPhone runs the iOS operating system, or OS. Other smartphone operating systems include Android, B...

To make a hotkey that sends the key sequence 'Hello World' from pressing Ctrl + J onto the active window (can be demonstrated in notepad, e.g.) ^j:: Send, Hello World Return

To make a script to replace a phrase use the ::abbreviation:: hotstring syntax. It will replace btw with by the way whenever you enter btw and then the space key. ::btw::by the way If you wanted to make a login script to make logging in faster you could make a script like this (the file is not e...

Navigation Shortcuts Go to class Ctrl+N Go to file Ctrl + Shift + N Navigate open tabs ALT + Left-Arrow; ALT + Right-Arrow Lookup recent files CTRL + E Go to line CTRL + G Navigate to last ed...

A model represents some data object in an application. For example you can have a model such as: Fruit, Car, Building, etc. in your application. Models are normally used by stores. Here is example how you would define a new model class. e.g. Ext.define('MyApp.model.Person', { extend: 'Ext.data...

Create your RecyclerView in your layout xml file: <android.support.v7.widget.RecyclerView android:id="@+id/recycleView" android:layout_width="match_parent" android:layout_height="match_parent" /> Create your Model...

The NVIDIA installation guide ends with running the sample programs to verify your installation of the CUDA Toolkit, but doesn't explicitly state how. First check all the prerequisites. Check the default CUDA directory for the sample programs. If it is not present, it can be downloaded from the offi...

There are two ways to setup the Apache Flex SDK. You can use the provided Apache Flex SDK Installer, an Adobe AIR application that automates the process (on Windows or OS X/macOS). Or you can install it manually which obviously requires a greater comfort with your platform but provides more flexibi...

public class Sheep { private String name; private int weight; public Sheep(String name, int weight) { this.name = name; this.weight = weight; } public static Sheep newInstance(Sheep other); return new Sheep(other.name, other.wei...

The tf.py_func() operator enables you to run arbitrary Python code in the middle of a TensorFlow graph. It is particularly convenient for wrapping custom NumPy operators for which no equivalent TensorFlow operator (yet) exists. Adding tf.py_func() is an alternative to using sess.run() calls inside t...

Some LINQ methods return a query object. This object does not hold the results of the query; instead, it has all the information needed to generate those results: var list = new List<int>() {1, 2, 3, 4, 5}; var query = list.Select(x => { Console.Write($"{x} "); return ...

To show and hide a FloatingActionButton with the default animation, just call the methods show() and hide(). It's good practice to keep a FloatingActionButton in the Activity layout instead of putting it in a Fragment, this allows the default animations to work when showing and hiding. Here is an ...

Suppose we have the following XAML snippet: <ListBox x:Name="MyListBox" /> Then in the code-behind for this XAML file, we write the following in the constructor: MyListBox.ItemsSource = new[] { 1, 2, 3, 4, 5 }; Running the application, we get a list of numbers we enter...

In general, functions that operate on other functions, either by taking them as arguments or by returning them (or both), are called higher-order functions. A higher-order function is a function that can take another function as an argument. You are using higher-order functions when passing callbac...