Tutorial by Examples: v

We have seen in those examples (ex_1, ex_2) how to use and override the pagination classes in any generic class base view. What happens when we want to use pagination in a function based view? Lets also assume that we want to create a function based view for MyModel with PageNumberPagination, res...

In PHP, variable values have an associated "truthiness" so even non-boolean values will equate to true or false. This allows any variable to be used in a conditional block, e.g. if ($var == true) { /* explicit version */ } if ($var) { /* $var == true is implicit */ } Here are some fun...

Suppose you are creating a function that requires no arguments when it is called and you are faced with the dilemma of how you should define the parameter list in the function prototype and the function definition. You have the choice of keeping the parameter list empty for both prototype and d...

As it can be seen on the picture above, in indexed db in order to access the data you need to have: Open a connection to the desired database Open a transaction which can be read only or read write Open a cursor or index which can be used for filtering the data In the cursor request - onsucc...

Array ( [0] => Array ( [id] => 13 [category_id] => 7 [name] => Leaving Of Liverpool [description] => Leaving Of Liverpool [price] => 1.00 [virtual] => 1 [active] =...

plugin.tx_news { settings { link { skipControllerAndAction = 1 } } } [globalVar = GP:tx_news_pi1|news > 0] config.defaultGetVars { tx_news_pi1 { controller=News action=detail } } [global] ...

REPORT z_template. CLASS lcl_program DEFINITION ABSTRACT FINAL. PUBLIC SECTION. CLASS-METHODS start_of_selection. CLASS-METHODS initialization. CLASS-METHODS end_of_selection. ENDCLASS. CLASS lcl_program IMPLEMENTATION. METHOD initialization. ENDMETHOD. ...

In the following example, we create an Activity to display a single TextView. The TextView will use a SpannableString as its content, which will illustrate some of the available styles. Here' what we're gonna do with the text : Make it larger Bold Underline Italicize Strike-through Colored...

In spreadsheet cell A1, we have the following Arabic pangram: صِف خَلقَ خَودِ كَمِثلِ الشَمسِ إِذ بَزَغَت — يَحظى الضَجيعُ بِها نَجلاءَ مِعطارِ VBA provides the AscW and ChrW functions to work with multi-byte character codes. We can also use Byte arrays to manipulate the string variable directly: ...

VBA Identifiers (variable and function names) can use the Latin script and may also be able to use Japanese, Korean, Simplified Chinese, and Traditional Chinese scripts. The extended Latin script has full coverage for many languages: English, French, Spanish, German, Italian, Breton, Catalan, Dani...

In memory, an image can be seen as a matrix of pixel (color). However, when an image being stored in a permanent storage, it may be stored as is (RAW format), Bitmap or other image formats with particular compression algorithm for saving storage space, e.g. PNG, JPEG, GIF, etc. When loading an image...

Firstly you need to download and install the VSCode. This VSCode latest version is available for download in its Official website . After download the VSCode you should install and open it. Introduction of Extensions in VSCode VSCode is a open editor so it provide editor for all languages but ...

VsCode is unable to create the ionic project because it is a code editor.So you can create your ionic project by CLI or cmd. create your project by below command $ ionic start appName blank Above command use to create blank template ionic application. Ionic2 provide three type of templates blank...

Some digital image processing algorithm such as edge detection, information carried by the image intensity (i.e. grayscale value) is sufficient. Using color information (R, G, B channel) may provides slightly better result, but the algorithm complexity will be increased. Thus, in this case, we need ...

The advantage of immutability comes with concurrency. It is difficult to maintain correctness in mutable objects, as multiple threads could be trying to change the state of the same object, leading to some threads seeing a different state of the same object, depending on the timing of the reads and ...

The most effective way to resolve curl to a different server is to use the --resolve option. This option will insert the address into curl's DNS cache, so it will effectively make curl believe that's the address it got when it resolved the name. Like so: curl --resolve eaxmple.com:80:1.2.3.4 http:...

hello_world.c #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #define AUTHOR "Bruce Lee" #define DESC "Hello World driver" static int __init init(void) { printk(KERN_DEBUG "Hello World\n"); return 0;...

var foo : Int by Delegates.observable("1") { property, oldValue, newValue -> println("${property.name} was changed from $oldValue to $newValue") } foo = 2 The example prints foo was changed from 1 to 2

let imagePath = require("../../assets/list.png"); <Image style={{height: 50, width: 50}} source={imagePath} /> From external resource: <Image style={{height: 50, width: 50}} source={{uri: userData.image}} />

You can save a canvas to an image file by using the method canvas.toDataURL(), that returns the data URI for the canvas' image data. The method can take two optional parameters canvas.toDataURL(type, encoderOptions): type is the image format (if omitted the default is image/png); encoderOptions is ...