Tutorial by Topics: di

A run is a consecutive sequence of repeated values or observations. For repeated values, R's "run-length encoding" concisely describes a vector in terms of its runs. Consider: dat <- c(1, 2, 2, 2, 3, 1, 4, 4, 1, 1) We have a length-one run of 1s; then a length-three run of 2s; the...

CAGradientLayer() // Returns an initialized CALayer object. CAGradientLayer(layer: layer) // Override to copy or initialize custom fields of the specified layer. ParameterDetailscolorAn array of CGColorRef objects defining the color of each gradient stop. Animatable.locationsAn optional ar...

LineDescriptionshow();Shows the dialogsetContentView(R.layout.yourlayout);sets the ContentView of the dialog to your custom layout.dismiss()Closes the dialog The dialog in the first example(Dialog) does not need to call show() when it is created as it is handled in the constructor Alert...

Multithreading is a programming technique which consists of dividing a task into separate threads of execution. These threads run concurrently, either by being assigned to different processing cores, or by time-slicing. When designing a multithreaded program, the threads should be made as indepen...

padding: length|initial|inherit|unset; padding-top: length|initial|inherit|unset; padding-right: length|initial|inherit|unset; padding-bottom: length|initial|inherit|unset; padding-left: length|initial|inherit|unset; The padding property sets the padding space on all sides of an elem...

Model binding is the process of taking HTTP parameters, typically in the Query String of a GET request, or within POST body, and applying it into an object that can then be validated and consumed in an object-oriented manner without the need for Controller actions having intimate knowledge of how to...

Assert.ArgumentCondition(bool condition, string argumentName, string message) Assert.ArgumentNotNull(object argument, string argumentName) Assert.ArgumentNotNull(object argument, Func<string> getArgumentName) Assert.ArgumentNotNullOrEmpty(ID argument, string argumentName) Assert.Argument...

The div element in HTML is a container element that encapsulates other elements and can be used to group and separate parts of a webpage. A div by itself does not inherently represent anything but is a powerful tool in web design. This topic covers the purpose and applications of the div element. ...

This code will turn off the capability for a user to hold down the Shift key when opening a database to skip the default form opening and allow the user access to the Navigation Pane and VB Editor. In DB’s that you do not want users to have access to either of these (along with disabling the use ...

Before URLs can be rewritten, a module called mod_rewrite.c needs to be enabled. Usually, it is disabled in the configuration by default. mod_rewrite can be enabled by executing the command $ sudo a2enmod mod_rewrite $ sudo service apache2 restart or by commenting out the lines #LoadModule ...

With pthreads v3 pthreads can only be loaded when using the cli SAPI, thus it is a good practice to keep the extension=pthreads.so directive in php-cli.ini ONLY, if you are using PHP7 and Pthreads v3. If you are using Wamp on Windows, you have to configure the extension in php.ini : Open php...

To select rows with out duplicates change the WHERE clause to "RowCnt = 1" To select one row from each set use Rank() instead of Sum() and change the outer WHERE clause to select rows with Rank() = 1

ModeExplaination>Write (trunc). Will overwrite existing files. Creates a new file if no file was found>>Write (append). Will not overwrite files but append new content at the end of it. Will also create a file if used for opening a non existing file.<Read. Opens the file in read only m...

bool supported = document.execCommand(commandName, showDefaultUI, valueArgument) commandIdvalue⋮ Inline formatting commands backColorColor value Stringbold createLinkURL StringfontNameFont family namefontSize"1", "2", "3", "4", "5", "6&q...

addChild(child) - adds a new item to this object's child tree as the topmost element. addChildAt(child, index) - adds a new item to this object's child tree at a specified position. The bottom-most item has index of 0. getChildAt(index) - returns a child with given index. getChildIndex(child) r...