Tutorial by Examples: le

Let's assume you have a ListView wich is supposed to display every User object listed under the Users Property of the ViewModel where Properties of the User object can get updated programatically. <ListView ItemsSource="{Binding Path=Users}" > <ListView.ItemTemplate> ...

This example implements a linked list with many of the same methods as that of the built-in list object. class Node: def __init__(self, val): self.data = val self.next = None def getData(self): return self.data def getNext(self): return self.ne...

public abstract class BaseActivity extends AppCompatActivity { private Map<Integer, PermissionCallback> permissionCallbackMap = new HashMap<>(); @Override protected void onStart() { super.onStart(); ... } @Override public void setConten...

var fs = require("fs"); fs.readFileSync(‘abc.txt’,function(err,data){ //Reading File Synchronously if(!err) { console.log(data); } //else //console.log(err); }); console.log("something else"); Here, the program wa...

The minimum required files and folders for the phonegap-build project are: ─ www ├─ res │ ├─ icon │ │ ├─ android │ │ ├─ ios │ │ ├─ windows-phone │ │ &...

I hope this example will help everyone to understand how awk internal variables like NR, FNR etc change when awk is processing two files. awk '{print "NR:",NR,"FNR:",FNR,"fname:",FILENAME,"Field1:",$1}' file1 file2 NR: 1 FNR: 1 fname: file1 Field1: f1d1 NR:...

Block will capture variables that appeared in the same lexical scope. Normally these variables are captured as "const" value: int val = 10; void (^blk)(void) = ^{ val = 20; // Error! val is a constant value and cannot be modified! }; In order to modify the variable, you need to ...

Following is the example of QLabel that displays use of texts,images and hyperlinks. import sys from PyQt4.QtCore import * from PyQt4.QtGui import * def window(): app = QApplication(sys.argv) win = QWidget() l1 = QLabel() l2 = QLabel() l3 = QLabel() l4 = QLabel()...

from bs4 import BeautifulSoup import requests main_url = "https://fr.wikipedia.org/wiki/Hello_world" req = requests.get(main_url) soup = BeautifulSoup(req.text, "html.parser") # Finding the main title tag. title = soup.find("h1", class_ = "firstHeading&qu...

Ext.define('App.Duck', { extend: 'Ext.Component', alias: 'widget.duck', initComponent: function () { this.callParent(arguments); this._quack(); }, _quack: function () { console.log('The duck says "Quack!"'); this.fireEvent('quack...

// gets the Class objects from the net.mminecraft.server package with the given name public Class<?> getNmsClass(String name) throws ClassNotFoundException { // explode the Server interface implementation's package name into its components String[] packageArray = Bukkit.getServer()....

NLTK provides the FreqDist class that let's us easily calculate a frequency distribution given a list as input. Here we are using a list of part of speech tags (POS tags) to see which lexical categories are used the most in the brown corpus. import nltk brown_tagged = nltk.corpus.brown.tagged_w...

int sum (int x, ...) { int result = x; va_list list = va_list (); for (int? y = list.arg<int?> (); y != null; y = list.arg<int?> ()) { result += y; } return result; } int a = sum (1, 2, 3, 36); With this function, you can pass as many int as you w...

A key part of the Reader monad is the ask (https://hackage.haskell.org/package/mtl-2.2.1/docs/Control-Monad-Reader.html#v:ask) function, which is defined for illustrative purposes: import Control.Monad.Trans.Reader hiding (ask) import Control.Monad.Trans ask :: Monad m => ReaderT r m r ask ...

This is an official MATLAB example Consider the following code: month = [1;1;2;3;8;1;3;4;9;11;9;12;3;4;11]; temperature = [57;61;60;62;45;59;64;66;40;56;38;65;61;64;55]; maxTemp = accumarray(month,temperature,[],@max); The image below demonstrates the computation process done by accumarray in...

An example project (Git repo) that can be used as a starting point for doing some 3D rendering. The code for setting up OpenGL and the shaders is quite long and tedious so it wont fit well under this example format. Later pieces of it can be shown in separate examples detailing what exactly is going...

You can see the running demo by clicking here. HTML: <p> <span>Counter State</span><br /> (<em>Will increase each minute</em>): <p> <span id="counter-state" style="font-weight: bolder"></span> </p> &l...

Below is a single hidden layer Multilayer Perceptron (MLP) using nested scoping of variables. def weight_variable(shape): return tf.get_variable(name="weights", shape=shape, initializer=tf.zeros_initializer(dtype=tf.float32)) def bias_variable(shape): ...

- hosts: all roles: - { role: myrole, become: yes } - myrole2

Firebase handles notifications differently when the app is in background (killed process) and when in foreground (active). When your app is in the background, notification messages are displayed in the system tray, and onMessageReceived is not called. For notification messages with a data payload...