Tutorial by Examples: b

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...

Visit http://sheets.google.com to try out now! Create a new spreadsheet and start playing around.

BottomSheet DialogFragment opens up in STATE_COLLAPSED by default. Which can be forced to open to STATE_EXPANDEDand take up the full device screen with help of the following code template. @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { BottomSheetDialog dialog = ...

If you have: operator fun <R> String.invoke(block: () -> R) = { try { block.invoke() } catch (e: AssertException) { System.err.println("$this\n${e.message}") } } You can write the following DSL-like code: "it should return 2" { parse("1 + 1").bu...

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...

Small object optimization is a technique which is used within low level data structures, for instance the std::string (Sometimes referred to as Short/Small String Optimization). It's meant to use stack space as a buffer instead of some allocated memory in case the content is small enough to fit with...

For the most printing clients, is extremely useful to know if a print job has finished or failed. The Java Print Service API provide some functionalities to get informed about these scenarios. All we have to do is: provide an implementation for PrintJobListener interface and register this impl...

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...

There are two ways to uninstall a particular version of Ruby. The easiest is to simply remove the directory from ~/.rbenv/versions: $ rm -rf ~/.rbenv/versions/2.1.0 Alternatively, you can use the uninstall command, which does exactly the same thing: $ rbenv uninstall 2.1.0 If this version ha...

This is what I did to install CakePHP on a fresh installed minimal CentOS 7 Installed a CentOS-7-x86_64-Minimal-1611.iso in VirtualBox, two network interfaces: first NAT, second Host-Only set ONBOOT=yes in /etc/sysconfig/network-scripts/ifcfg-enp0s3 reboot yum update yum install net-tools (to...

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...

From your server request to the the link below to send the notification with some request parameters https://fcm.googleapis.com/fcm/send While requesting add headers as follows Authorization key=<Your_key_from_the_console> Content-Type application/json The body of the request v...

datepicker.component.html <div (clickOutside)="onClickedOutside($event)" (blur)="onClickedOutside($event)"> <div class="input-group date" [ngClass]="{'disabled-icon': disabledDatePicker == false }"> <input (change)="cha...

import threading import time class StoppableThread(threading.Thread): """Thread class with a stop() method. The thread itself has to check regularly for the stopped() condition.""" def __init__(self): super(StoppableThread, self).__init__()...

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

1.1.2 (This content is only relavant for versions 1.1.2 and up) From versions 1.1.2 and up, you can set the delay to select a new chip before refocusing on the input. Use the md-chip-append-delay attribute to set it (in milliseconds): Example: <md-chips md-chip-append-delay="500" n...

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: ...

An image represents a rectangular grid of picture elements (pixel). In the image package, the pixel is represented as one of the color defined in image/color package. The 2-D geometry of the image is represented as image.Rectangle, while image.Point denotes a position on the grid. The above figur...

Initialization of variable private GoogleApiClient mGoogleApiClient; You must have to Write this Code in onCreate() method of all that when u put signout button. mGoogleApiClient = new GoogleApiClient.Builder(this) .enableAutoManage(this /* FragmentActivity */, this /* OnConnectio...

> Run and Debug in Chrome To run the ionic project use below command in terminal or cmd or CLI $ ionic serve For debugging the ionic project ,Firstly you should add extension (Debugger for chrome) and then configure launch.json file like this. { "version": "0...