Tutorial by Examples: d

When invoking a def, parameters may be assigned explicitly by name. Doing so means they needn't be correctly ordered. For example, define printUs() as: // print out the three arguments in order. def printUs(one: String, two: String, three: String) = println(s"$one, $two, $three") ...

Command Structure is sqlcmd -S yourservername\instancename -d database_name -o outputfilename_withpath -Q "your select query" Switches are as follows -S for servername and instance name -d for source database -o for target outputfile (it will create output file) -Q fo...

When nothing matches a wildcard such as * in bash, it gets passed on as a literal * to the command, as if you had typed \*. However, zsh throws an error. Bash: duncan@K7DXS-Laptop-Arch:~/test$ echo *.txt *.txt duncan@K7DXS-Laptop-Arch:~/test$ touch abc.txt duncan@K7DXS-Laptop-Arch:~/test$ echo...

' A "Hello, World!" program in Visual Basic. Module Hello Sub Main() MsgBox("Hello, World!") ' Display message on computer screen. End Sub End Module

For BLE slave devices to do any useful work, the GPIOs of the wireless MCU are almost always involved. For instance, to read temperature from an external sensor, the ADC functionality of GPIO pins may be required. TI's CC2640 MCU features a maximum of 31 GPIOs, given different packaging types. In t...

Cordova plugins are in simple words a layer on top of the respective native platform. Plugins provide an interface between to access the native platform.

Cordova Plugins provide a common interface to interact with the native code. Each plugin has an intermediary JavaScript file that provides access to platform specific features.

cordova plugin add <plugin-name> Example: cordova plugin add cordova-plugin-camera The plugin should be installed in the root directory of the project. Note: Before adding the plugin replace the platform specific www folder content with the outer www folder in the root directory. Th...

Pygame has a module, pygame.draw, that contains functions which can draw shapes directly to a Surface. FunctionDescriptionpygame.draw.rectdraw a rectangle shapepygame.draw.polygondraw a shape with any number of sidespygame.draw.circledraw a circle around a pointpygame.draw.ellipsedraw a round shape...

You can always run JavaScript from inside itself, although this is strongly discouraged due to the security vulnerabilities it presents (see Remarks for details). To run JavaScript from inside JavaScript, simply use the below function: eval("var a = 'Hello, World!'");

You can set a variable to something with the eval() function by using something similar to the below code: var x = 10; var y = 20; var a = eval("x * y") + "<br>"; var b = eval("2 + 2") + "<br>"; var c = eval("x + 17") + "<br&...

This example implements a custom binding that toggles visibility (similar to the existing visible binding), but will utilize jQuery's fading API to animate the transition from visible to invisible. Custom binding definition: //Add a custom binding called "fadeVisible" by adding it as a p...

DIVIDE a INTO b c d Data item b, c, and d are changed as b/a, c/a and d/a. DIVIDE a INTO b GIVING c Data item c is changed as b/a. DIVIDE a BY b GIVING c Data item c is changed as a/b. DIVIDE a INTO b GIVING q REMAINDER r Data items q and r are set with results of b/a DIVIDE a BY b G...

DISPLAY "An error occurred with " tracked-resource UPON SYSERR DISPLAY A, B, C UPON CONSOLE DISPLAY group-data UPON user-device ON EXCEPTION WRITE device-exception-notice NOT ON EXCEPTION WRITE device-usage-log END-DISPLAY UPON CONSOLE is a default, ra...

EVALUATE a ALSO b ALSO TRUE WHEN 1 ALSO 1 THRU 9 ALSO c EQUAL 1 PERFORM all-life WHEN 2 ALSO 1 THRU 9 ALSO c EQUAL 2 PERFORM life WHEN 3 THRU 9 ALSO 1 ALSO c EQUAL 9 PERFORM disability WHEN OTHER PERFORM invalid END-EVALUATE

This example is a custom binding that replaces text whenever an input value is updated. In this case, spaces will be replaced with "+". It is intended to be used alongside the existing value binding, and shows binding with an object literal. Sample markup with the replaceText binding: &l...

index.html <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta http-equiv="Content-Security-Policy" content="default-src *; script-src 'self' 'unsafe-inline' 'unsafe-eval' *; style-src 'self' 'unsafe-inline' *"/> ...

Step 1: Go to root directory of project and open command line prompt cordova build --release android This generates an unsigned apk under \platforms\android\build\outputs\apk with the name android-release-unsigned.apk Step 2: Key generation for obtaining signed apk Syntax: keytool -genkey ...

Objects that are not built-in To print the source code of a Python object use inspect. Note that this won't work for built-in objects nor for objects defined interactively. For these you will need other methods explained later. Here's how to print the source code of the method randint from the ran...

You can extend C++ with named operators that are "quoted" by standard C++ operators. First we start with a dozen-line library: namespace named_operator { template<class D>struct make_operator{constexpr make_operator(){}}; template<class T, char, class O> struct half_a...