Tutorial by Examples: rom

As an example, lets us look at a Wordpress container The Dockerfile begins with FROM php:5.6-apache so we go to the Dockerfile abovementioned https://github.com/docker-library/php/blob/master/5.6/apache/Dockerfile and we find FROM debian:jessie So this means that we a security patch appears f...

`This way you will get the newest ruby but it has its downsides. Doing it like this ruby will not be managed by any application. !! Remember to chagne the version so it coresponds with your !! you need to download a tarball find a link on an official website (https://www.ruby-lang.org/en/downloa...

You have already created a plist. This plist will remain same in app. If you want to edit the data in this plist, add new data in plist or remove data from plist, you can't make changes in this file. For this purpose you will have to store your plist in Document Directory. You can edit your plist s...

As you can see the layout of this gem is very catching and user friendly.

Plain Vanilla Filtering To filter any view, override its get_queryset method to return a filtered query set class HREmployees(generics.ListAPIView): def get_queryset(self): return Employee.objects.filter(department="Human Resources") All the API functions will then use t...

First lets create a vector called Vector1: set.seed(123) Vector1 <- rnorm(20) And add missing data to it: set.seed(123) Vector1[sample(1:length(Vector1), 5)] <- NA Now we can use the is.na function to subset the Vector Vector1 <- Vector1[!is.na(Vector1)] Now the resulting vect...

import cv2 def canny_webcam(): "Live capture frames from webcam and show the canny edge image of the captured frames." cap = cv2.VideoCapture(0) while True: ret, frame = cap.read() # ret gets a boolean value. True if reading is successful (I think). frame ...

Reading from an input port can be done in many ways. We can use the read method used by the REPL. It will read and interpret space separated expressions. Taking the example from the string port above. We can read from the port like this: (define p (open-input-string "(a . (b . (c . ()))) 3...

private bool navigateFlag = false; protected async override void OnNavigatingFrom(NavigatingCancelEventArgs e) { base.OnNavigatingFrom(e); if (!navigateFlag) { e.Cancel = true; var dialog = new MessageDialog("Navigate away?", Confir,); ...

Sometimes the crashes occur constantly in a single form or report, or occur only when printing. It is possible that the binary data within the form / report has become corrupt. Save the Form / Report object as text There are two undocumented functions. Application.SaveAsText and Application.Load...

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //the query or stored procedure name for the database string sqlQuery = "SELECT * FROM myTable"; //create a datatable DataTable dataTable = loadExternalDataSet(sqlQuery); //c...

//create a new ExcelPackage using (ExcelPackage excelPackage = new ExcelPackage()) { //create a WorkSheet ExcelWorksheet worksheet = excelPackage.Workbook.Worksheets.Add("Sheet 1"); //create a new list with books List<Book> books = new List<Book>(); ...

If oDic.Exists("UK") Then oDic.remove("UK") End If

If you do not want to use ASPNETCORE_ENVIRONMENT from environment variables and use it from web.config of your application then modify web.config like this- <aspNetCore processPath=".\WebApplication.exe" arguments="" stdoutLogEnabled="false" stdoutLogFile=".\lo...

We can create a service to set and get the data between the controllers and then inject that service in the controller function where we want to use it. Service : app.service('setGetData', function() { var data = ''; getData: function() { return data; }, setData: function(requestData)...

This a sample code which will show you how you can create dynamic code which will generate a bootstrap model at run time. This also includes deciding modal title body content and buttons in footer. HTML code <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css&...

set oDic = CreateObject("Scripting.Dictionary") oDic.add "USA", "United States of America" oDic.add "UK", "United Kingdom" oDic.add "CAN", "Canada" ' Delete only if Key exists If oDic.Exists("UK") Then oDic.R...

The reference to the outer class uses the class name and this public class OuterClass { public class InnerClass { public void method() { System.out.println("I can access my enclosing class: " + OuterClass.this); } } } You can access fields and ...

//create a list to hold all the values List<string> excelData = new List<string>(); //read the Excel file as byte array byte[] bin = File.ReadAllBytes("C:\\ExcelDemo.xlsx"); //or if you use asp.net, get the relative path byte[] bin = File.ReadAllBytes(Server.MapPath(&q...

//set the formatting options ExcelTextFormat format = new ExcelTextFormat(); format.Delimiter = ';'; format.Culture = new CultureInfo(Thread.CurrentThread.CurrentCulture.ToString()); format.Culture.DateTimeFormat.ShortDatePattern = "dd-mm-yyyy"; format.Encoding = new UTF8Encoding(); ...