Tutorial by Examples: ev

app.component.ts: import {Component,OnInit} from "@angular/core"; import placeholder = require("ui/placeholder"); let application= require("application"); @Component({ selector: "my-app", templateUrl: "app.component.html", }) export...

Define the function using the vararg keyword. fun printNumbers(vararg numbers: Int) { for (number in numbers) { println(number) } } Now you can pass as many parameters (of the correct type) into the function as you want. printNumbers(0, 1) // Prints "0&qu...

Items can be retrieved from a Collection by calling the .Item function. Syntax: .Item(index) ParameterDescriptionindexThe item to retrieve from the Collection. If the value passed is a numeric type or Variant with a numeric sub-type, it will be interpreted as a numeric index. If the value pas...

This uses the SwiftyDropbox library to upload a file from a NSFileHandle to the Dropbox account using upload sessions, handling every error case: import UIKit import SwiftyDropbox class ViewController: UIViewController { // filled in later in doUpload: var fileHandle : NSFileHandle?...

Creating the event object Swift var event = EKEvent(eventStore: eventStore) Objective-C EKEvent *event = [EKEvent initWithEventStore:eventStore]; Setting related calendar, title and dates Swift event.calendar = calendar event.title = "Event Title" event.startDate = startDate /...

This is an example to show how to change the allowed choices on a subCategory select field depending on the value of the category select field. To do that you have to make your subCategory choices dynamical for both client and server side. 1. Make the form dynamic on the client side for display / ...

@IBAction func axisChange(sender: UISwitch) { UIView.animateWithDuration(1.0) { self.updateConstraintsForAxis() } } The updateConstraintForAxis function just sets the axis of the stack view containing the two image views: private func updateConstraintsForAxis() { if (axi...

To restore a file to the latest updated svn version, i.e. undo the local changes, you can use revert: svn revert file To restore a file to an older version (revision XXX) use update: svn update -r XXX file Warning: in both cases you will lose any local changes in the file because it will be ...

In addition to using LIMIT SQL statements you can also use the SQLite3 function querySingle to retrieve a single row, or the first column. <?php $database = new SQLite3('mysqlitedb.db'); //Without the optional second parameter set to true, this query would return just //the first column of ...

Typically, when one of the RadioButtons in a ToggleGroup is selected the application performs an action. Below is an example which prints the user data of the selected RadioButton which has been set with setUserData(Object). radioButton1.setUserData("awesome") radioButton2.setUserData(&q...

Sometimes we need a visual hint to indicate the return status of previous command. The following snippet make put it at the head of the PS1. Note that the __stat() function should be called every time a new PS1 is generated, or else it would stick to the return status of last command of your .bashr...

[root@localhost ~]# docker inspect d87bf9607836 "Mounts": [ { "Name": "cdf78fbf79a7c9363948e133abe4c572734cd788c95d36edea0448094ec9121c", "Source": "/var/lib/docker/volumes/cdf78fbf79a7c9363948e133abe4c572734cd788c95d36edea0448094ec9121c/_data&quot...

To send an event: vm.$emit('new-message'); To catch an event: vm.$on('new-message'); To send an event to all components down: vm.$broadcast('new-message'); To send an event to all components up: vm.$dispatch('new-message'); Note: $broadcast and $dispatch are deprecated in Vue2. (see Vue2 feature...

The following picture illustrates how component communication should work. The picture comes from The Progressive Framework slides of Evan You (Developer of VueJS). Here is an example of how it works : DEMO HTML <script type="x-template" id="message-box"> <inp...

You might have realized that $emit is scoped to the component that is emitting the event. That's a problem when you want to communicate between components far from one another in the component tree. Note: In Vue1 you coud use $dispatch or $broadcast, but not in Vue2. The reason being that it doesn'...

UWP applications can easily store simple settings in a key/value store locally or even in the cloud so your application or a game can share settings between different user's devices. Following data types can be used for settings: UInt8, Int16, UInt16, Int32, UInt32, Int64, UInt64, Single, Double...

string setting = IsolatedStorageSettings.ApplicationSettings["Key"] as string;

First, add a reference to <EEPROM.h> at the start of your sketch: #include <EEPROM.h> Then your other code: // Stores value in a particular address in EEPROM. There are almost 512 addresses present. // Store value 24 to Address 0 in EEPROM int addr = 0; int val = 24...

As previous example, this script request elevation if needed. We ask the user for credentials avoiding the UAC prompt. @echo off cls & set "user=" & set "pass=" :: check if we have administrative access :: ----------------------------------------------------------...

The Sieve of Eratosthenes generates all the primes from 2 to a given number n. Assume that all numbers (from 2 to n) are prime. Then take the first prime number and removes all of its multiples. Iterate the step 2 for next prime. Continue until all numbers till n have been marked. Pseudocode...