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ga('create', 'UA-XXXX-Y', {'sampleRate': 5}); Optional. This may only be set in the create method. Specifies what percentage of users should be tracked. This defaults to 100 (no users are sampled out) but large sites may need to use a lower sample rate to stay within Google Analytics processing ...

Before ECMAScript 2015 (ES6), a parameter's default value could be assigned in the following way: function printMsg(msg) { msg = typeof msg !== 'undefined' ? // if a value was provided msg : // then, use that value in the reassignemnt 'Default value for ...

Sometimes we need to change type from Collection<T?> to Collections<T>. In that case, filterNotNull is our solution. val a: List<Int?> = listOf(1, 2, 3, null) val b: List<Int> = a.filterNotNull()

Detailed instructions on getting monogame set up or installed.

3 You can use rem defined by the font-size of your html tag to style elements by setting their font-size to a value of rem and use em inside the element to create elements that scale with your global font-size. HTML: <input type="button" value="Button"> <input type=...

localStorage.length property returns an integer number indicating the number of elements in the localStorage Example: Set Items localStorage.setItem('StackOverflow', 'Documentation'); localStorage.setItem('font', 'Helvetica'); localStorage.setItem('image', 'sprite.svg'); Get length localSto...

Holy Grail layout is a layout with a fixed height header and footer, and a center with 3 columns. The 3 columns include a fixed width sidenav, a fluid center, and a column for other content like ads (the fluid center appears first in the markup). CSS Flexbox can be used to achieve this with a very s...

A simple example on how to read a UTF text file synchronously. import flash.filesystem.File; import flash.filesystem.FileMode; import flash.filesystem.FileStream; //First, get a reference to the file you want to load var myFile:File = File.documentsDirectory.resolvePath("lifestory.txt&...

Declare the AppWidgetProvider class in your application's AndroidManifest.xml file. For example: <receiver android:name="ExampleAppWidgetProvider" > <intent-filter> <action android:name="android.appwidget.action.APPWIDGET_UPDATE" /> </intent-filter&gt...

The most important AppWidgetProvider callback is onUpdate(). It is called everytime an appwidget is added. public class ExampleAppWidgetProvider extends AppWidgetProvider { public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { final int N = a...

Nine-patch images allow optional definition of the padding lines in the image. The padding lines are the lines on the right and at the bottom. If a View sets the 9-patch image as its background, the padding lines are used to define the space for the View's content (e.g. the text input in an EditTex...

This example uses a search controller to filter the data inside a table view controller. The search bar is placed inside the navigation bar that the table view is embedded into. Embed a UITableViewController into a UINavigationController to get the UINavigationItem (which contains the navigation ...

This example uses a search controller to filter the cells in a table view controller. The search bar is placed inside the header view of the table view. The table view content is offset with the same height as the search bar so that the search bar is hidden at first. Upon scrolling up past the top e...

Early bound (requires a reference to Microsoft Scripting Runtime): Public Sub EnumerateDirectory() Dim fso As Scripting.FileSystemObject Set fso = New Scripting.FileSystemObject Dim targetFolder As Folder Set targetFolder = fso.GetFolder("C:\") Dim foundFi...

A helper function to create a bitmap copy of an object. This can be used to convert vector objects, text or complex nested Sprite's to a flattened bitmap. function makeBitmapCopy(displayObj:IBitmapDrawable, transparent:Boolean = false, bgColor:uint = 0x00000000, smooth:Boolean = true):Bitmap { ...

MATLAB supports the use of logical masking in order to perform selection on a matrix without the use of for loops or if statements. A logical mask is defined as a matrix composed of only 1 and 0. For example: mask = [1 0 0; 0 1 0; 0 0 1]; is a logical matrix representing the identity matrix. ...

Local hooks affect only the local repositories in which they reside. Each developer can alter their own local hooks, so they can't be used reliably as a way to enforce a commit policy. They are designed to make it easier for developers to adhere to certain guidelines and avoid potential problems dow...

This program illustrates how one can copy a file using readable and writable streams using the createReadStream(), and createWriteStream() functions provided by the file system module. //Require the file System module var fs = require('fs'); /* Create readable stream to file in current direc...

Sometimes it might be necessary to manually promisify a callback function. This could be for a case where the callback does not follow the standard error-first format or if additional logic is needed to promisify: Example with fs.exists(path, callback): var fs = require('fs'); var existsAsync =...

This is your cluster.js: const cluster = require('cluster'); const http = require('http'); const numCPUs = require('os').cpus().length; if (cluster.isMaster) { // Fork workers. for (let i = 0; i < numCPUs; i++) { cluster.fork(); } cluster.on('exit', (worker, code, signal)...