Tutorial by Examples: ha

Given a money system, is it possible to give an amount of coins and how to find a minimal set of coins corresponding to this amount. Canonical money systems. For some money system, like the ones we use in the real life, the "intuitive" solution works perfectly. For example, if the diffe...
Objective-C //Displays the country pickerView with black background and white text [self. countryPicker setValue:[UIColor whiteColor] forKey:@"textColor"]; [self. countryPicker setValue:[UIColor blackColor] forKey:@"backgroundColor"]; Swift let color1 = UIColor(colorLitera...
First off, let's assume this is your initial model, inside an application called discography: from django.db import models class Album(models.Model): name = models.CharField(max_length=255) artist = models.CharField(max_length=255) Now, you realize that you want to use a ForeignKey ...
Carthage Setup Download the latest version of Carthage from the given link Download Link Down in the Download section download the Carthage.pkg file. Once the download is complete install it by double clinking on the download pkg file. To check for successful download run the following command i...
By default, PHP Curl supports GET and POST requests. It is possible to also send custom requests, such as DELETE, PUT or PATCH (or even non-standard methods) using the CURLOPT_CUSTOMREQUEST parameter. $method = 'DELETE'; // Create a DELETE request $ch = curl_init($url); curl_setopt($ch, CURLOPT...
For small functions that get called often, the overhead associated with the function call can be a significant fraction of the total execution time of that function. One way of improving performance, then, is to eliminate the overhead. In this example we use four functions (plus main()) in three so...
Add button Login as facebook account to your login view: Edit site/login.php in views folder, add theses line to content of page login: <?= yii\authclient\widgets\AuthChoice::widget([ 'baseAuthUrl' => ['site/auth'], 'popupMode' => false, ]) ?> Above, we set that aut...
XML <Animal> <legs>4</legs> <eyes>2</eyes> <horns>2</horns> <tail>1</tail> </Animal> XPATH boolean(/Animal/tusks) OUTPUT false
XPATH <Animal> <legs>4</legs> <eyes>2</eyes> <horns>2</horns> <tail>1</tail> </Animal> XPATH boolean(/Animal/horns) OUTPUT true
inline int add(int x, int y) { return x + y; } int main() { int a = 1, b = 2; int c = add(a, b); } In the above code, when add is inlined, the resulting code would become something like this int main() { int a = 1, b = 2; int c = a + b; } The inline function ...
$MachinesList # Array $ResourceList # Array $MachineTags # Array pseudo code $mongoDriverPath = 'C:\Program Files (x86)\MongoDB\CSharpDriver 1.7'; Add-Type -Path "$($mongoDriverPath)\MongoDB.Bson.dll"; Add-Type -Path &qu...
XML <Deborah> <address>Dark world</address> <master>Babadi</master> <ID>#0</ID> <colour>red</colour> <side>evil</side> </Deborah> XPATH boolean(/Deborah/master/text()) OR string(/Deborah/master...
XML <Dobby> <address>Hogwartz</address> <master></master> <colour>wheatish</colour> <side>all good</side> </Dobby> XPATH boolean(/Dobby/master/text()) OR string(/Dobby/master) != '' OUTPUT false
The Angular CLI command-line interface has AoT compilation support since beta 17. To build your app with AoT compilation, simply run: ng build --prod --aot
// Cancel older notification with same id, NotificationManager notificationMgr = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE); notificationMgr.cancel(CALL_NOTIFY_ID);// any constant value // Create Pending Intent, Intent notificationIntent = null; PendingInt...
MailMessage represents mail message which can be sent further using SmtpClient class. Several attachments (files) can be added to mail message. using System.Net.Mail; using(MailMessage myMail = new MailMessage()) { Attachment attachment = new Attachment(path); myMail.Attachments.Add...
GCobol >>SOURCE FORMAT IS FIXED *> *************************************************************** *> Purpose: Demonstration of the SEARCH ALL verb and table SORT *> Tectonics: cobc -x -fdebugging-line searchbinary.cob *> ******************************...
A gen_server is a specific finite state machine working like a server. gen_server can handle different type of event: synchronous request with handle_call asynchronous request with handle_cast other message (not defined in OTP specification) with handle_info Synchronous and asynchronous mess...
Create a new ASP.Net Project: Select the empty template: Add two new folders: App and Scripts in the root folder: Add npm configuration file in the root folder: { "version": "1.0.0", "name": "phaser.js.environment.setup", "priva...

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