You need to import System.ComponentModel for using background worker
Imports System.ComponentModel
Then Declare a private variable
Private bgWorker As New BackgroundWorker
You need to create two methods for background worker's DoWork and RunWorkerCompleted events and assign them.
Private Su...
A minimal Flask application looks something like this:
from flask import Flask
app = Flask(__name__)
@app.route("/")
def index():
return "Hello World!"
A large Flask application can separate one file into multiple files by blueprints.
Purpose
Make it easier for ...
let doc = require('dynamodb-doc');
let dynamo = new doc.DynamoDB();
var tblName = "MyTable";
exports.handler = (event, context, callback) => {
readOperation(context);
}
function readOperation(cnxt) {
var params = {
TableName: tblName,
Key: {
"id": ...
Show all available databases:
show dbs;
Select a particular database to access, e.g. mydb. This will create mydb if it does not already exist:
use mydb;
Show all collections in the database (be sure to select one first, see above):
show collections;
Show all functions that can be used w...
There are four types of sockets available in POSIX API: TCP, UDP, UNIX, and (optionally) RAW. Unix domain sockets may act like stream sockets or like datagram sockets.
Some of endpoint types:
struct sockaddr - universal endpoint type. Typically, other concrete endpoint types are converted to thi...
Through this example, it will be explained to divide the node.js code into different modules/folders for better undertandibility. Following this technique makes it easier for other developers to understand the code as he can directly refer to concerned file instead of going through whole code. The m...
mongodump --db mydb --gzip --out "mydb.dump.$(date +%F_%R)"
This command will dump a bson gzipped archive of your local mongod 'mydb' database to the 'mydb.dump.{timestamp}' directory
mongorestore --db mydb mydb.dump.2016-08-27_12:44/mydb --drop --gzip
This command will first drop your current 'mydb' database and then restore your gzipped bson dump from the 'mydb mydb.dump.2016-08-27_12:44/mydb' archive dump file.
As the first step, we’ll build a basic web server that stores data in MongoDB. For this demonstration, we’ll name it “fast Library”. The server will have two basic operations:
POST /book: This endpoint will receive the title, the author, and the content of the book, and create a book entry in the d...
Assuming you know the productID:
First
import StoreKit
Then in your code
let productID: Set = ["premium"]
let request = SKProductsRequest(productIdentifiers: productID)
request.delegate = self
request.start()
and in the SKProductsRequestDelegate:
func productsRequest(request: ...
The most basic application of add_action() is to add custom code to be executed at a certain location in a WordPress installation's source-code - either using actions supplied by the Core of WordPress, or ones created by third-party code such as plugins and themes.
To add content to the <head&g...
<md-card>
<md-card-header>
<md-card-header-text>
<span class="md-title">This will be the title</span>
<span class="md-subhead">Here goes the (smaller, lighter) sub-header</span>
</md-car...
/*
SD card basic file example
This example shows how to create and destroy an SD card file
The circuit:
* SD card attached to SPI bus as follows:
** MOSI - pin 11
** MISO - pin 12
** CLK - pin 13
** CS - pin 4
created Nov 2010
by David A. Mellis
modified 9 Apr 2012
by ...
A basic reducer would look like this:
// Import the action types to recognise them
import { ACTION_ERROR, ACTION_ENTITIES_LOADED, ACTION_ENTITY_CREATED } from './actions';
// Set up a default state
const initialState = {
error: undefined,
entities: []
};
// If no state is provi...
