Tutorial by Examples: at

Installation or Setup

Detailed instructions on getting avr set up or installed.

avr • Getting started with avr

In Kotlin, we can declare variable which can hold null reference. Suppose we have a nullable reference a, we can say "if a is not null, use it, otherwise use some non-null value x" var a: String? = "Nullable String Value" Now, a can be null. So when we need to access value o...

Kotlin • Null Safety

Installation or Setup

Detailed instructions on getting greasemonkey set up or installed.

greasemonkey • Getting started with greasemonkey

Getting Attributes of WebElements in Selenium

To get the attribute of a WebElement, we use getAttribute on that WebElement. For example, consider the following html tag <a id="click" href="https://www.google.com"> We can find the Element's href attribute by WebElement e = driver.findElement(By.id("click&quot...

selenium • First project in selenium with Java

Math behind 1D convolution with advanced examples in TF

`To calculate 1D convolution by hand, you slide your kernel over the input, calculate the element-wise multiplications and sum them up. The easiest way is for padding=0, stride=1 So if your input = [1, 0, 2, 3, 0, 1, 1] and kernel = [2, 1, 3] the result of the convolution is [8, 11, 7, 9, 4], whic...

tensorflow • Using 1D convolution

Installation or Setup

Detailed instructions on getting openui5 set up or installed.

openui5 • Getting started with openui5

Notification Channel

What Are Notification Channels? Notification channels enable us app developers to group our notifications into groups—channels—with the user having the ability to modify notification settings for the entire channel at once. For example, for each channel, users can completely block all notifications...

Android • Notification Channel Android O

Connecting to a GATT Server

Once you have discovered a desired BluetoothDevice object, you can connect to it by using its connectGatt() method which takes as parameters a Context object, a boolean indicating whether to automatically connect to the BLE device and a BluetoothGattCallback reference where connection events and cli...

Android • Bluetooth Low Energy

Subscribing to Notifications from the Gatt Server

You can request to be notified from the Gatt Server when the value of a characteristic has been changed: gatt.setCharacteristicNotification(characteristic, true); BluetoothGattDescriptor descriptor = characteristic.getDescriptor( UUID.fromString("00002902-0000-1000-8000-00805f9b34fb&quot...

Android • Bluetooth Low Energy

Using a Gatt Server

In order for your device to act as a peripheral, first you need to open a BluetoothGattServer and populate it with at least one BluetoothGattService and one BluetoothGattCharacteristic: BluetoothGattServer server=bluetoothManager.openGattServer(context, bluetoothGattServerCallback); BluetoothGat...

Android • Bluetooth Low Energy

Installation or Setup

Detailed instructions on getting angularjs-ng-repeat set up or installed.

angularjs-ng-repeat • Getting started with angularjs-ng-repeat

Features

VR Made Simple Just drop in a script tag and a-scene. A-Frame will handle 3D boilerplate, VR setup, and default controls. Nothing to install, no build steps. Declarative HTML HTML is easy to read, understand, and copy-and-paste. Being based on top of HTML, A-Frame is accessible to everyone: web d...

aframe • Getting started with aframe

Installation and Setup

The installation is quite simple as there are seperate installers for MacOS and Windows machines available here. Currently two versions are for download: one beta and one stable. Setup will start after you downloaded the program and you´ll need to login with your GitHub credentials. That is really ...

github • GitHub Desktop

Use a "Font Awesome Icon" for the DatePicker (xe:djDateTextBox)

The default icon of the Date-Picker in the Extension Library from OpenNTF is nice but not sexy. You can change it to one of the cool "Font Awesome Icons". First, add a DatePicker component to your page: <xe:djDateTextBox id="datePickerComp" value="#{myDoc.myDateField}&q...

xpages • Usage of "Extension Library"

Form Encoded Data

from requests import post payload = {'key1' : 'value1', 'key2' : 'value2' } foo = post('http://httpbin.org/post', data=payload) To pass form encoded data with the post operation, data must be structured as dictionary and supplied as the data parameter. If the data d...

Python Language • Python Requests Post

Jinja2 installation and setup

Install the dependencies: pip install jinja2 Install a framework: pip install flask Create the following structure ├── run.py └── templates Put a file template.html in the templates directory. The file can contain a jinja 2 variable named my_string. <!DOCTYPE html> <html lang=&qu...

jinja2 • Getting started with jinja2

Installation or Setup

Detailed instructions on getting jupyter-notebook set up or installed.

jupyter-notebook • Getting started with jupyter-notebook

Authentication

Simple HTTP Authentication Simple HTTP Authentication can be achieved with the following: from requests import post foo = post('http://natas0.natas.labs.overthewire.org', auth=('natas0', 'natas0')) This is technically short hand for the following: from requests import post from requests.au...

Python Language • Python Requests Post

MVC pattern

import UIKit struct Person { // Model let firstName: String let lastName: String } class GreetingViewController : UIViewController { // View + Controller var person: Person! let showGreetingButton = UIButton() let greetingLabel = UILabel() override func vie...

iOS • Guideline to choose best iOS Architecture Patterns

MVP Patterns

import UIKit struct Person { // Model let firstName: String let lastName: String } protocol GreetingView: class { func setGreeting(greeting: String) } protocol GreetingViewPresenter { init(view: GreetingView, person: Person) func showGreeting() } class Greetin...

iOS • Guideline to choose best iOS Architecture Patterns