Tutorial by Examples: nd

Here we are managing multiple collection there delegate methods with didselect events. extension ProductsVC: UICollectionViewDelegate, UICollectionViewDataSource{ // MARK: - UICollectionViewDataSource func collectionView(_ collectionView: UICollectionView, numberOfItemsI...

The following server-side configuration allows CORS request to work along with Windows Authentication (no anonymous must be enabled in IIS). web.config - allow unauthenticated (anonymous) preflight requests (OPTIONS) <system.web> <authentication mode="Windows" /> &l...

The following example shows how to properly construct both GET and POST requests against Web API 2 (CORS must be configured server-side, if sent from another domain): <script type="text/javascript" src="https://code.jquery.com/jquery-3.1.1.js"></script> CORS with Wi...

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.1/angular.js"></script> CORS with Windows Authentication test (Angular) <script type="text/javascript"> var app = angular.module('myApp', []); app.c...

BEGINS - returns TRUE if one string begins with another string. string1 BEGINS string2 If string1 BEGINS with (or is equal to) string2 this will return true. Otherwise it will return false. If string two is empty ("") it will always return true. BEGINS is very useful in queries wher...

RANDOM - generates a random number RANDOM(low, high) Generates a pseudo random integer between low and high // Example that generates 20 random numbers between 1 and 20 (1 and 20 included) DEFINE VARIABLE i AS INTEGER NO-UNDO. DO i = 1 TO 20. DISPLAY i RANDOM(1, 20). PAUSE. ...

Write a CSV file from a dict or a DataFrame. import pandas as pd d = {'a': (1, 101), 'b': (2, 202), 'c': (3, 303)} pd.DataFrame.from_dict(d, orient="index") df.to_csv("data.csv") Read a CSV file as a DataFrame and convert it to a dict: df = pd.read_csv("data.csv&qu...

Swift 3 import UIKit // Save String to file let fileName = "TextFile" let documentDirectory = try FileManager.default.urlForDirectory(.documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true) var fileURL = try documentDirectory.appendingPathComponent(fileName).ap...

As mentioned before strings are normally case insensitive but that only regards comparison of strings. There's built in functions for changing case. CAPS (string) Makes string upper case LC(string) Makes string lower case DEFINE VARIABLE c AS CHARACTER NO-UNDO. DEFINE VARIABLE d AS C...

Here, a cursor is used to loop through all databases. Futhermore, a cursor from dynamic sql is used to query each database returned by the first cursor. This is to demonstrate the connection-scope of a cursor. DECLARE @db_name nvarchar(255) DECLARE @sql nvarchar(MAX) DECLARE @schema nvarcha...

The DICOM Image file is a tagged image file; the file contains both an image (most of the time) and a collection of data about the image. The data in a DICOM image file is stored as a sequence of individual elements. Each element contains one item of information about the image or the image itself. ...

Inside of your {CATALINA_HOME}/conf/ folder exists a server.xml and context.xml file. Each one of these contains similar code, but references different parts of Tomcat to complete the same task. server.xml is server-wide configuration. This is where you can set up HTTPS, HTTP2, JNDI Resources, etc....

public void test() { Connection conn = null; Statement stmt = null; try { Context ctx = (Context) new InitialContext().lookup("java:comp/env"); conn = ((DataSource) ctx.lookup("jdbc/SomeDataSource")).getConnection(); stmt = conn.createS...

The Wrong Way Consider the following structure { "users": { // Uniquely generated IDs for children is common practice, // it's actually really useful for automating child creation. // Auto-incrementing an integer for a key can be problematic when a child is removed. ...

A procedure can have parameters of different kinds: input, output, input-output (bidirectional) and also some special types like temp-tables and datasets). In the run statement it's optional to declare INPUT (it's considered default) - all other directions must be specifically declared. A procedur...

Let's create a small piece of code that throws an exception: private void button1_Click(object sender, EventArgs e) { string msg = null; msg.ToCharArray(); } If we execute this, we get the following Exception and stack trace: System.NullReferenceException: "Object reference not...

In general, the code is placed in the module of a sheet. This is the Worksheet_SelectionChange event, which fires each time a different cell is selected in the active sheet. You can select "Worksheet" from the first drop-down menu above the code window, and "Selection_Change" fr...

The principle is essentially the same as for the Text widget, but a Grid layout is used to put the scrollbars around the widget. canvas = tk.Canvas(parent, width=150, height=150) canvas.create_oval(10, 10, 20, 20, fill="red") canvas.create_oval(200, 200, 220, 220, fill="blue")...

Ubuntu: $ cat /proc/cpuinfo Sample Output: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz stepping : 11 cpu MHz : 1596.000 cache size : 4096 KB physical id : 0 siblings ...

It has not been explained in the Tensorflow documentation how to load images and labels directly from a TXT file. The code below illustrates how I achieved it. However, it does not mean that is the best way to do it and that this way will help in further steps. For instance, I'm loading the labels ...