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Servant is a library for declaring APIs at the type-level and then: write servers (this part of servant can be considered a web framework), obtain client functions (in haskell), generate client functions for other programming languages, generate documentation for your web applications and m...

PresenceOf - Validates that a value is not null or empty string $validator->add('name', new \Phalcon\Validation\Validator\PresenceOf([ 'message' => 'The name is required' ])); Email - Checks if a value has a correct e-mail format $validator->add('email', new \Phalcon\Validation\Va...

In Tcl, a control structure is basically just another command. This is one possible implementation of a do ... while / do ... until control structure. proc do {body keyword expression} { uplevel 1 $body switch $keyword { while {uplevel 1 [list while $expression $body]} u...

2.1.3 1. Preview Different Devices There is a preview panel at the right of the android studio. In thispanel there is a button with device name with which you are previewing the UI of your app like this . Click on small dropdown indicator of this and a floating panel will appear with all the pr...

VB 14.0 introduces the ability to add comments after implicit line continuation. Dim number = From c As Char 'Comment In "dj58kwd92n4" 'Comment Where Char.IsNumber(c) 'Comment Select c 'Comment

In Emacs, basic search tool (I-Search) allows you to search after or before the location of your cursor. To search for sometext after the location of your cursor (search-forward) hit C-s sometext. If you want to go to the next occurence of sometext, just press C-s again (and so on for the ne...

Set mark in cursor location: C-space or C-@ Kill region (Cut): C-w Copy region to kill ring: M-w or Esc-w Yank (Paste) most recently killed: C-y Yank (Paste) next last killed: M-y or Esc-y Kill killis the command used by Emacs for the deletion of ...

It forces you to explicitly declare all variables. What is the difference between explicitly declaring and implicitly declaring a variable? Explicitly declaring a variable: Dim anInteger As Integer = 1234 Implicitly declaring a variable: 'Did not declare aNumber using Dim aNumber = 1234 C...

To create mixins, simply declare lightweight classes that can be used as "behaviours". class Flies { fly() { alert('Is it a bird? Is it a plane?'); } } class Climbs { climb() { alert('My spider-sense is tingling.'); } } class Bulletproof { ...

Using the System.String.Replace method, you can replace part of a string with another string. string s = "Hello World"; s = s.Replace("World", "Universe"); // s = "Hello Universe" All the occurrences of the search string are replaced. This method can al...

The System.String class supports a number of methods to convert between uppercase and lowercase characters in a string. System.String.ToLowerInvariant is used to return a String object converted to lowercase. System.String.ToUpperInvariant is used to return a String object converted to upper...

The System.String.Join method allows to concatenate all elements in a string array, using a specified separator between each element: string[] words = {"One", "Two", "Three", "Four"}; string singleString = String.Join(",", words); // singleString =...

String Concatenation can be done by using the System.String.Concat method, or (much easier) using the + operator: string first = "Hello "; string second = "World"; string concat = first + second; // concat = "Hello World" concat = String.Concat(first, second); // ...

Configure profiling for a project via stack. First build the project with the --profile flag: stack build --profile GHC flags are not required in the cabal file for this to work (like -prof). stack will automatically turn on profiling for both the library and executables in the project. The next...

Add the following code to the onCreate()/onResume() method: SensorManager sensorManager; Sensor mAccelerometer; final float movementThreshold = 0.5f; // You may have to change this value. boolean isMoving = false; float[] prevValues = {1.0f, 1.0f, 1.0f}; float[] currValues = new float[3]; ...

Consider the following code as an illustration: public String joinWords(List<String> words) { String message = ""; for (String word : words) { message = message + " " + word; } return message; } Unfortunate this code is inefficient if the w...

Get all files in Directory var FileSearchRes = Directory.GetFiles(@Path, "*.*", SearchOption.AllDirectories); Returns an array of FileInfo, representing all the files in the specified directory. Get Files with specific extension var FileSearchRes = Directory.GetFiles(@Path, "*...

6.0 Default SET format is MMDDhhmm[[CC]YY][.ss], that's (2 digits each) For example, to set July 17'th 10:10am, without changing the current year, type: adb shell 'date 07171010.00' Tip 1: the date change will not be reflected immediately, and a noticable change will happen only after the syst...

For most GNU/Linux distributions, a version of GnuCOBOL is available in the repositories. GnuCOBOL was originally OpenCOBOL, rebranded when the project became an official GNU project. Many repositories are still using open-cobol as the package name (as of August 2016). For Fedora, and other RPM b...

Put your dbname.sqlite or dbname.db file in assets folder of your project. public class Databasehelper extends SQLiteOpenHelper { public static final String TAG = Databasehelper.class.getSimpleName(); public static int flag; // Exact Name of you db file that you put in as...