Tutorial by Examples: d

In some instances, you will want to send data from JS client to the R server. Here is a basic example using javascript's Shiny.onInputChange function: library(shiny) runApp( list( ui = fluidPage( # create password input HTML('<input type="password" id="passw...

To install DevExpress .NET products on your development machine, it is first necessary to obtain the DevExpress .NET Products Installer. You can download it from the http://www.devexpress.com website in one of the following ways, based on the status of your current account. Download the Trial ...

This example demonstrates usage of POSIX record locks (a.k.a. process-associated locks), provided by fcntl function (POSIX base standard). Notes: Exclusive and shared locks are supported. Can be applied to a byte range, optionally automatically expanding when data is appended in future (control...

CKContainer.defaultContainer().accountStatusWithCompletionHandler { accountStatus, error in if accountStatus == .NoAccount { let alert = UIAlertController(title: "Sign in to iCloud", message: "Sign in to your iCloud account to write records. On the Home screen, l...

A model for a new table can be created by running the following commend from the terminal root location: phalcon model <table-name> Let us take the Model Users. SELECT There are two default functions to do select operation in phalcon, find() and findFirst() findFirst() is used to get th...

identification division. program-id. altering. date-written. 2015-10-28/06:36-0400. remarks. Demonstrate ALTER. procedure division. main section. *> And now for some altering. contrived. ALTER story TO PROCEED TO beginning GO TO story . *> Jump to a part of the story...

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Error messages are generally included in a script for debugging purposes or for providing rich user experience. Simply writing error message like this: cmd || echo 'cmd failed' may work for simple cases but it's not the usual way. In this example, the error message will pollute the actual output...

Creating a Project with the NetBeans IDE In the following, we walk you through the creation of a Vaadin project in NetBeans and show how to run it. Installation of NetBeans and the Vaadin plugin is covered in Installing the NetBeans IDE and Plugin. Without the plugin, you can most easily create a...

#include <string.h> #include <stdio.h> #include <stdlib.h> #include <sys/types.h> #include <unistd.h> #include <dirent.h> #include <ctype.h> int main(int argc, char **argv) { const char *dname = (argc > 1 ? argv[1] : "."); DI...

#define _XOPEN_SOURCE 500 #include <stdlib.h> /* for exit() */ #include <stdio.h> /* for remove() */ #include <ftw.h> /* for nftw() */ int unlink_cb( const char *fpath, const struct stat *sb, int typeflag, struct FTW *ftwbuf) { return remove(fpath); } in...

Open Android Studio Open Your Project Click on Gradle (From Right Side Panel, you will see Gradle Bar) Click on Refresh (Click on Refresh from Gradle Bar, you will see List Gradle scripts of your Project) Click on Your Project (Your Project Name form List (root)) Click on Tasks Click on andr...

TextViewPlus.java: public class TextViewPlus extends TextView { private static final String TAG = "TextView"; public TextViewPlus(Context context) { super(context); } public TextViewPlus(Context context, AttributeSet attrs) { super(context, attrs)...

CustomProgressBarActivity.java: public class CustomProgressBarActivity extends AppCompatActivity { private TextView txtProgress; private ProgressBar progressBar; private int pStatus = 0; private Handler handler = new Handler(); @Override protected void onCreate(Bun...

There is a signal WINCH ( WINdowCHange), which is fired when one resizes a terminal window. declare -x rows cols update_size(){ rows=$(tput lines) # get actual lines of term cols=$(tput cols) # get actual columns of term echo DEBUG terminal window has no $rows lines and is $cols chara...

MainActivity.java: public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } } activity_main.xml: <?xml version="1...

Due to the stucture of SAS, there are three main ways to create "Hello World!" examples: Within a data step to put a message into the SAS log (_null_ denotes that no output dataset should be created): data _null_; put "Hell" "o World!"; run; Within a da...

tf.exe get /all /recursive /force /overwrite $/ Gets all files and directories, and will replace any files that are not currently checked out in the workspace (including files that have been edited).

Upload a file to server is also a post. You can easily upload a file through WWW, like the below: Upload A Zip File To Server string mainUrl = "http://server/upload/"; string saveLocation; void Start() { saveLocation = "ftp:///home/xxx/x.zip"; // The file path. ...