For System.Timers.Timer, on separate thread, if SynchronizingObject is not set.

    static System.Timers.Timer DummyTimer = null;

    static void Main(string[] args)
    {
        try
        {

            Console.WriteLine("Main Thread Id: " + System.Threading.Thread.CurrentThread.ManagedThreadId);

            DummyTimer = new System.Timers.Timer(1000 * 5); // 5 sec interval
            DummyTimer.Enabled = true;
            DummyTimer.Elapsed += new System.Timers.ElapsedEventHandler(OnDummyTimerFired);
            DummyTimer.AutoReset = true;

            DummyTimer.Start();

            Console.WriteLine("Hit any key to exit");
            Console.ReadLine();
        }
        catch (Exception Ex)
        {
            Console.WriteLine(Ex.Message);
        }

        return;
    }

    static void OnDummyTimerFired(object Sender, System.Timers.ElapsedEventArgs e)
    {
        Console.WriteLine(System.Threading.Thread.CurrentThread.ManagedThreadId);
        return;
    }

Output you'd see if DummyTimer fired on 5 seconds interval:

Main Thread Id: 9
   12
   12
   12
   12
   12
   ... 

So, as seen, OnDummyTimerFired is executed on Workers thread.

No, further complication - If you reduce interval to say 10 ms,

Main Thread Id: 9
   11
   13
   12
   22
   17
   ... 

This is because if prev execution of OnDummyTimerFired isn't done when next tick is fired, then .NET would create a new thread to do this job.

Complicating things further, "The System.Timers.Timer class provides an easy way to deal with this dilemma—it exposes a public SynchronizingObject property. Setting this property to an instance of a Windows Form (or a control on a Windows Form) will ensure that the code in your Elapsed event handler runs on the same thread on which the SynchronizingObject was instantiated."

http://msdn.microsoft.com/en-us/magazine/cc164015.aspx#S2

One possible answer:

import time
t=time.time()

while True:
    if time.time()-t>10:
        #run your task here
        t=time.time()

Execute function FetchData() once after 1000 milliseconds:

setTimeout(FetchData,1000);

Execute function FetchData() repeatedly every 1000 milliseconds:

setInterval(FetchData,1000);

What do you think about that:

    int iceu_system_GetTimeNow(long long int *res)
    {
      static struct timespec buffer;
      // 
    #ifdef __CYGWIN__
      if (clock_gettime(CLOCK_REALTIME, &buffer))
        return 1;
    #else
      if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &buffer))
        return 1;
    #endif
      *res=(long long int)buffer.tv_sec * 1000000000LL + (long long int)buffer.tv_nsec;
      return 0;
    }

The usual WPF timer is the DispatcherTimer, which is not a control but used in code. It basically works the same way like the WinForms timer:

System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0,0,1);
dispatcherTimer.Start();


private void dispatcherTimer_Tick(object sender, EventArgs e)
{
  // code goes here
}

More on the DispatcherTimer can be found here

You can also create your own (if unhappy with the options available).

Creating your own Timer implementation is pretty basic stuff.

This is an example for an application that needed COM object access on the same thread as the rest of my codebase.

/// <summary>
/// Internal timer for window.setTimeout() and window.setInterval().
/// This is to ensure that async calls always run on the same thread.
/// </summary>
public class Timer : IDisposable {

    public void Tick()
    {
        if (Enabled && Environment.TickCount >= nextTick)
        {
            Callback.Invoke(this, null);
            nextTick = Environment.TickCount + Interval;
        }
    }

    private int nextTick = 0;

    public void Start()
    {
        this.Enabled = true;
        Interval = interval;
    }

    public void Stop()
    {
        this.Enabled = false;
    }

    public event EventHandler Callback;

    public bool Enabled = false;

    private int interval = 1000;

    public int Interval
    {
        get { return interval; }
        set { interval = value; nextTick = Environment.TickCount + interval; }
    }

    public void Dispose()
    {
        this.Callback = null;
        this.Stop();
    }

}

You can add events as follows:

Timer timer = new Timer();
timer.Callback += delegate
{
    if (once) { timer.Enabled = false; }
    Callback.execute(callbackId, args);
};
timer.Enabled = true;
timer.Interval = ms;
timer.Start();
Window.timers.Add(Environment.TickCount, timer);

To make sure the timer works you need to create an endless loop as follows:

while (true) {
     // Create a new list in case a new timer
     // is added/removed during a callback.
     foreach (Timer timer in new List<Timer>(timers.Values))
     {
         timer.Tick();
     }
}

public void schedule(TimerTask task,long delay)

Schedules the specified task for execution after the specified delay.

you want:

public void schedule(TimerTask task, long delay, long period)

Schedules the specified task for repeated fixed-delay execution, beginning after the specified delay. Subsequent executions take place at approximately regular intervals separated by the specified period.

Needed a break, so I cobbled the following together. Not sure it would be worth creating a plugin from though.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>
            Counter
        </title>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script>
        <script type="text/javascript">
            //<![CDATA[
                function createCounter(elementId,start,end,totalTime,callback)
                {
                    var jTarget=jQuery("#"+elementId);
                    var interval=totalTime/(end-start);
                    var intervalId;
                    var current=start;
                    var f=function(){
                        jTarget.text(current);
                        if(current==end)
                        {
                            clearInterval(intervalId);
                            if(callback)
                            {
                                callback();
                            }
                        }
                        ++current;
                    }
                    intervalId=setInterval(f,interval);
                    f();
                }
                jQuery(document).ready(function(){
                    createCounter("counterTarget",0,20,5000,function(){
                        alert("finished")
                    })
                })
            //]]>
        </script>
    </head>
    <body>
        <div id="counterTarget"></div>
    </body>
</html>

You could use gettimeofday at the start and end of your method and then difference the two return structs. You'll get a structure like the following:

struct timeval {
  time_t tv_sec;
  suseconds_t tv_usec;
}

EDIT: As the two comments below suggest, clock_gettime(CLOCK_MONOTONIC) is a much better choice if you have it available, which should be almost everywhere these days.

EDIT: Someone else commented that you can also use modern C++ with std::chrono::high_resolution_clock, but that isn't guaranteed to be monotonic. Use steady_clock instead.

You can use either one. But I think Sleep() is easy, clear and shorter to implement.

The functions mentioned above execute no matter if it has completed in previous invocation or not, this one runs after every x seconds once the execution is complete

// IIFE
(function runForever(){
  // Do something here
  setTimeout(runForever, 5000)
})()

// Regular function with arguments
function someFunction(file, directory){
  // Do something here
  setTimeout(someFunction, 5000, file, directory)
  // YES, setTimeout passes any extra args to
  // function being called
}

You need to put your main code on the OnStart method.

This other SO answer of mine might help.

You will need to put some code to enable debugging within visual-studio while maintaining your application valid as a windows-service. This other SO thread cover the issue of debugging a windows-service.

EDIT:

Please see also the documentation available here for the OnStart method at the MSDN where one can read this:

Do not use the constructor to perform processing that should be in OnStart. Use OnStart to handle all initialization of your service. The constructor is called when the application's executable runs, not when the service runs. The executable runs before OnStart. When you continue, for example, the constructor is not called again because the SCM already holds the object in memory. If OnStop releases resources allocated in the constructor rather than in OnStart, the needed resources would not be created again the second time the service is called.

<script>
    setTimeout(function(){
        window.location.href = 'form2.html';
    }, 5000);
</script>

And for home page add only '/'

<script>
    setTimeout(function(){
        window.location.href = '/';
    }, 5000);
</script>

Both System.Timers.Timer and System.Threading.Timer will work for services.

The timers you want to avoid are System.Web.UI.Timer and System.Windows.Forms.Timer, which are respectively for ASP applications and WinForms. Using those will cause the service to load an additional assembly which is not really needed for the type of application you are building.

Use System.Timers.Timer like the following example (also, make sure that you use a class level variable to prevent garbage collection, as stated in Tim Robinson's answer):

using System;
using System.Timers;

public class Timer1
{
    private static System.Timers.Timer aTimer;

    public static void Main()
    {
        // Normally, the timer is declared at the class level,
        // so that it stays in scope as long as it is needed.
        // If the timer is declared in a long-running method,  
        // KeepAlive must be used to prevent the JIT compiler 
        // from allowing aggressive garbage collection to occur 
        // before the method ends. (See end of method.)
        //System.Timers.Timer aTimer;

        // Create a timer with a ten second interval.
        aTimer = new System.Timers.Timer(10000);

        // Hook up the Elapsed event for the timer.
        aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);

        // Set the Interval to 2 seconds (2000 milliseconds).
        aTimer.Interval = 2000;
        aTimer.Enabled = true;

        Console.WriteLine("Press the Enter key to exit the program.");
        Console.ReadLine();

        // If the timer is declared in a long-running method, use
        // KeepAlive to prevent garbage collection from occurring
        // before the method ends.
        //GC.KeepAlive(aTimer);
    }

    // Specify what you want to happen when the Elapsed event is 
    // raised.
    private static void OnTimedEvent(object source, ElapsedEventArgs e)
    {
        Console.WriteLine("The Elapsed event was raised at {0}", e.SignalTime);
    }
}

/* This code example produces output similar to the following:

Press the Enter key to exit the program.
The Elapsed event was raised at 5/20/2007 8:42:27 PM
The Elapsed event was raised at 5/20/2007 8:42:29 PM
The Elapsed event was raised at 5/20/2007 8:42:31 PM
...
 */

If you choose System.Threading.Timer, you can use as follows:

using System;
using System.Threading;

class TimerExample
{
    static void Main()
    {
        AutoResetEvent autoEvent     = new AutoResetEvent(false);
        StatusChecker  statusChecker = new StatusChecker(10);

        // Create the delegate that invokes methods for the timer.
        TimerCallback timerDelegate = 
            new TimerCallback(statusChecker.CheckStatus);

        // Create a timer that signals the delegate to invoke 
        // CheckStatus after one second, and every 1/4 second 
        // thereafter.
        Console.WriteLine("{0} Creating timer.\n", 
            DateTime.Now.ToString("h:mm:ss.fff"));
        Timer stateTimer = 
                new Timer(timerDelegate, autoEvent, 1000, 250);

        // When autoEvent signals, change the period to every 
        // 1/2 second.
        autoEvent.WaitOne(5000, false);
        stateTimer.Change(0, 500);
        Console.WriteLine("\nChanging period.\n");

        // When autoEvent signals the second time, dispose of 
        // the timer.
        autoEvent.WaitOne(5000, false);
        stateTimer.Dispose();
        Console.WriteLine("\nDestroying timer.");
    }
}

class StatusChecker
{
    int invokeCount, maxCount;

    public StatusChecker(int count)
    {
        invokeCount  = 0;
        maxCount = count;
    }

    // This method is called by the timer delegate.
    public void CheckStatus(Object stateInfo)
    {
        AutoResetEvent autoEvent = (AutoResetEvent)stateInfo;
        Console.WriteLine("{0} Checking status {1,2}.", 
            DateTime.Now.ToString("h:mm:ss.fff"), 
            (++invokeCount).ToString());

        if(invokeCount == maxCount)
        {
            // Reset the counter and signal Main.
            invokeCount  = 0;
            autoEvent.Set();
        }
    }
}

Both examples comes from the MSDN pages.

In my case I needed to do this because I had passed a method to the thread I was waiting for and that caused the lock becuase the metod was run on the GUI thread and the thread code called that method sometimes.

Task<string> myTask = Task.Run(() => {
    // Your code or method call
    return "Maybe you want to return other datatype, then just change it.";
});
// Some other code maybe...
while (true)
{
    myTask.Wait(10);
    Application.DoEvents();
    if (myTask.IsCompleted) break;
}

The AT command would do that but that's what the Scheduled Tasks gui is for. Enter "help at" in a cmd window for details.

I use this way:

String[] array={
       "man","for","think"
}; int j;

then below the onCreate

TextView t = findViewById(R.id.textView);

    new CountDownTimer(5000,1000) {

        @Override
        public void onTick(long millisUntilFinished) {}

        @Override
        public void onFinish() {
            t.setText("I "+array[j] +" You");
            j++;
            if(j== array.length-1) j=0;
            start();
        }
    }.start();

it's easy way to solve this problem.

I couldn't synchronize and change the speed my setIntervals too and I was about to post a question. But I think I've found a way. It should certainly be improved because I'm a beginner. So, I'd gladly read your comments/remarks about this.

<body onload="foo()">
<div id="count1">0</div>
<div id="count2">2nd counter is stopped</div>
<button onclick="speed0()">pause</button>
<button onclick="speedx(1)">normal speed</button>
<button onclick="speedx(2)">speed x2</button>
<button onclick="speedx(4)">speed x4</button>
<button onclick="startTimer2()">Start second timer</button>
</body>
<script>
var count1 = 0,
    count2 = 0,
    greenlight = new Boolean(0), //blocks 2nd counter
    speed = 1000,   //1second
    countingSpeed;
function foo(){
    countingSpeed = setInterval(function(){
        counter1();
        counter2();
    },speed);
}
function counter1(){
    count1++;
    document.getElementById("count1").innerHTML=count1;
}
function counter2(){
    if (greenlight != false) {
        count2++;
        document.getElementById("count2").innerHTML=count2;
    }
}
function startTimer2(){
    //while the button hasn't been clicked, greenlight boolean is false
    //thus, the 2nd timer is blocked
    greenlight = true;
    counter2();
    //counter2() is greenlighted
}

//these functions modify the speed of the counters
function speed0(){
    clearInterval(countingSpeed);
}
function speedx(a){
    clearInterval(countingSpeed);
    speed=1000/a;
    foo();
}
</script>

If you want the counters to begin to increase once the page is loaded, put counter1() and counter2() in foo() before countingSpeed is called. Otherwise, it takes speed milliseconds before execution. EDIT : Shorter answer.

.

Usage:

CountDownTimer timer = new CountDownTimer();


//set to 30 mins
timer.SetTime(30,0);     

timer.Start();

//update label text
timer.TimeChanged += () => Label1.Text = timer.TimeLeftMsStr; 

// show messageBox on timer = 00:00.000
timer.CountDownFinished += () => MessageBox.Show("Timer finished the work!"); 

//timer step. By default is 1 second
timer.StepMs = 77; // for nice milliseconds time switch

and don't forget to Dispose(); when timer is useless for you;

Source code:

using System;
using System.Diagnostics;
using System.Windows.Forms;

public class CountDownTimer : IDisposable
{
    public Stopwatch _stpWatch = new Stopwatch();

    public Action TimeChanged;
    public Action CountDownFinished;

    public bool IsRunnign => timer.Enabled;

    public int StepMs
    {
        get => timer.Interval;
        set => timer.Interval = value;
    }

    private Timer timer = new Timer();

    private TimeSpan _max = TimeSpan.FromMilliseconds(30000);

    public TimeSpan TimeLeft => (_max.TotalMilliseconds - _stpWatch.ElapsedMilliseconds) > 0 ? TimeSpan.FromMilliseconds(_max.TotalMilliseconds - _stpWatch.ElapsedMilliseconds) : TimeSpan.FromMilliseconds(0);

    private bool _mustStop => (_max.TotalMilliseconds - _stpWatch.ElapsedMilliseconds) < 0;

    public string TimeLeftStr => TimeLeft.ToString(@"\mm\:ss");

    public string TimeLeftMsStr => TimeLeft.ToString(@"mm\:ss\.fff");

    private void TimerTick(object sender, EventArgs e)
    {
        TimeChanged?.Invoke();

        if (_mustStop)
        {
            CountDownFinished?.Invoke();
            _stpWatch.Stop();
            timer.Enabled = false;
        }
    }

    public CountDownTimer(int min, int sec)
    {
        SetTime(min, sec);
        Init();
    }

    public CountDownTimer(TimeSpan ts)
    {
        SetTime(ts);
        Init();
    }

    public CountDownTimer()
    {
        Init();
    }

    private void Init()
    {
        StepMs = 1000;
        timer.Tick += new EventHandler(TimerTick);
    }

    public void SetTime(TimeSpan ts)
    {
        _max = ts;
        TimeChanged?.Invoke();
    }

    public void SetTime(int min, int sec = 0) => SetTime(TimeSpan.FromSeconds(min * 60 + sec));

    public void Start() {
        timer.Start();
        _stpWatch.Start();
    }

    public void Pause()
    {
        timer.Stop();
        _stpWatch.Stop();
    }

    public void Stop()
    {
        Reset();
        Pause();
    }

    public void Reset()
    {
        _stpWatch.Reset();
    }

    public void Restart()
    {
        _stpWatch.Reset();
        timer.Start();
    }

    public void Dispose() => timer.Dispose();
}

(updated 6.6.2020, because of problems with time calculation)

The two classes are functionally equivalent, except that System.Timers.Timer has an option to invoke all its timer expiration callbacks through ISynchronizeInvoke by setting SynchronizingObject. Otherwise, both timers invoke expiration callbacks on thread pool threads.

When you drag a System.Timers.Timer onto a Windows Forms design surface, Visual Studio sets SynchronizingObject to the form object, which causes all expiration callbacks to be called on the UI thread.

 using System.Diagnostics;
 class Program
 {
    static void Test1()
    {
        for (int i = 1; i <= 100; i++)
        {
            Console.WriteLine("Test1 " + i);
        }
    }
  static void Main(string[] args)
    {

        Stopwatch sw = new Stopwatch();
        sw.Start();
        Test1();
        sw.Stop();
        Console.WriteLine("Time Taken-->{0}",sw.ElapsedMilliseconds);
   }
 }

new CountDownTimer(30000, 1000) {

    public void onTick(long millisUntilFinished) {
        mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
       //here you can have your logic to set text to edittext
    }

    public void onFinish() {
        mTextField.setText("done!");
    }

}.start();

Refer to this link.

Other way is using of built-in method start timer & event TimerEvent.

Header:

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
    int timerId;

protected:
    void timerEvent(QTimerEvent *event);
};

#endif // MAINWINDOW_H

Source:

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QDebug>

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    timerId = startTimer(1000);
}

MainWindow::~MainWindow()
{
    killTimer(timerId);
    delete ui;
}

void MainWindow::timerEvent(QTimerEvent *event)
{
    qDebug() << "Update...";
}

Use java.util.Timer and Timer#schedule(TimerTask,delay,period) method will help you.

public class RemindTask extends TimerTask {
    public void run() {
      System.out.println(" Hello World!");
    }
    public static void main(String[] args){
       Timer timer = new Timer();
       timer.schedule(new RemindTask(), 3000,3000);
    }
  }

Since PHP 7.3 the hrtime function should be used for any timing.

$start = hrtime(true);
// execute...
$end = hrtime(true);   

echo ($end - $start);                // Nanoseconds
echo ($end - $start) / 1000000000;   // Seconds

The mentioned microtime function relies on the system clock. Which can be modified e.g. by the ntpd program on ubuntu or just the sysadmin.

By adding using System.Timers; to your program you can use this function:

private static void delay(int Time_delay)
{
   int i=0;
  //  ameTir = new System.Timers.Timer();
    _delayTimer = new System.Timers.Timer();
    _delayTimer.Interval = Time_delay;
    _delayTimer.AutoReset = false; //so that it only calls the method once
    _delayTimer.Elapsed += (s, args) => i = 1;
    _delayTimer.Start();
    while (i == 0) { };
}

Delay is a function and can be used like:

delay(5000);

The following is a group of versatile C functions for timer management based on the gettimeofday() system call. All the timer properties are contained in a single ticktimer struct - the interval you want, the total running time since the timer initialization, a pointer to the desired callback you want to call, the number of times the callback was called. A callback function would look like this:

void your_timer_cb (struct ticktimer *t) {
  /* do your stuff here */
}

To initialize and start a timer, call ticktimer_init(your_timer, interval, TICKTIMER_RUN, your_timer_cb, 0).

In the main loop of your program call ticktimer_tick(your_timer) and it will decide whether the appropriate amount of time has passed to invoke the callback.

To stop a timer, just call ticktimer_ctl(your_timer, TICKTIMER_STOP).

ticktimer.h:

#ifndef __TICKTIMER_H
#define __TICKTIMER_H

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>

#define TICKTIMER_STOP         0x00
#define TICKTIMER_UNCOMPENSATE 0x00
#define TICKTIMER_RUN          0x01
#define TICKTIMER_COMPENSATE   0x02

struct ticktimer {
  u_int64_t tm_tick_interval;
  u_int64_t tm_last_ticked;
  u_int64_t tm_total;
  unsigned ticks_total;
  void (*tick)(struct ticktimer *);
  unsigned char flags;
  int id;
};

void ticktimer_init (struct ticktimer *, u_int64_t, unsigned char, void (*)(struct ticktimer *), int);
unsigned ticktimer_tick (struct ticktimer *);
void ticktimer_ctl (struct ticktimer *, unsigned char);
struct ticktimer *ticktimer_alloc (void);
void ticktimer_free (struct ticktimer *);
void ticktimer_tick_all (void);

#endif

ticktimer.c:

#include "ticktimer.h"

#define TIMER_COUNT 100

static struct ticktimer timers[TIMER_COUNT];
static struct timeval tm;

/*!
  @brief
    Initializes/sets the ticktimer struct.

  @param timer
    Pointer to ticktimer struct.
  @param interval
    Ticking interval in microseconds.
  @param flags
    Flag bitmask. Use TICKTIMER_RUN | TICKTIMER_COMPENSATE
    to start a compensating timer; TICKTIMER_RUN to start
    a normal uncompensating timer.
  @param tick
    Ticking callback function.
  @param id
    Timer ID. Useful if you want to distinguish different
    timers within the same callback function.
*/
void ticktimer_init (struct ticktimer *timer, u_int64_t interval, unsigned char flags, void (*tick)(struct ticktimer *), int id) {
  gettimeofday(&tm, NULL);
  timer->tm_tick_interval = interval;
  timer->tm_last_ticked = tm.tv_sec * 1000000 + tm.tv_usec;
  timer->tm_total = 0;
  timer->ticks_total = 0;
  timer->tick = tick;
  timer->flags = flags;
  timer->id = id;
}

/*!
  @brief 
    Checks the status of a ticktimer and performs a tick(s) if 
    necessary.

  @param timer
    Pointer to ticktimer struct.

  @return
    The number of times the timer was ticked.
*/
unsigned ticktimer_tick (struct ticktimer *timer) {
  register typeof(timer->tm_tick_interval) now;
  register typeof(timer->ticks_total) nticks, i;

  if (timer->flags & TICKTIMER_RUN) {
    gettimeofday(&tm, NULL);
    now = tm.tv_sec * 1000000 + tm.tv_usec;

    if (now >= timer->tm_last_ticked + timer->tm_tick_interval) {
      timer->tm_total += now - timer->tm_last_ticked;

      if (timer->flags & TICKTIMER_COMPENSATE) {
        nticks = (now - timer->tm_last_ticked) / timer->tm_tick_interval;
        timer->tm_last_ticked = now - ((now - timer->tm_last_ticked) % timer->tm_tick_interval);

        for (i = 0; i < nticks; i++) {
          timer->tick(timer);
          timer->ticks_total++;

          if (timer->tick == NULL) {
            break;
          }
        }

        return nticks;
      } else {
        timer->tm_last_ticked = now;
        timer->tick(timer);
        timer->ticks_total++;
        return 1;
      }
    }
  }

  return 0;
}

/*!
  @brief
    Controls the behaviour of a ticktimer.

  @param timer
    Pointer to ticktimer struct.
  @param flags
    Flag bitmask.
*/
inline void ticktimer_ctl (struct ticktimer *timer, unsigned char flags) {
  timer->flags = flags;
}

/*!
  @brief
    Allocates a ticktimer struct from an internal
    statically allocated list.

  @return
    Pointer to the newly allocated ticktimer struct
    or NULL when no more space is available.
*/
struct ticktimer *ticktimer_alloc (void) {
  register int i;

  for (i = 0; i < TIMER_COUNT; i++) {
    if (timers[i].tick == NULL) {
      return timers + i;
    }
  }

  return NULL;
}

/*!
  @brief
    Marks a previously allocated ticktimer struct as free.

  @param timer
    Pointer to ticktimer struct, usually returned by 
    ticktimer_alloc().
*/
inline void ticktimer_free (struct ticktimer *timer) {
  timer->tick = NULL;
}

/*!
  @brief
    Checks the status of all allocated timers from the 
    internal list and performs ticks where necessary.

  @note
    Should be called in the main loop.
*/
inline void ticktimer_tick_all (void) {
  register int i;

  for (i = 0; i < TIMER_COUNT; i++) {
    if (timers[i].tick != NULL) {
      ticktimer_tick(timers + i);
    }
  }
}

No plugin required. You can use only jquery.

If you want to set something on a timer, you can use JavaScript's setTimeout or setInterval methods:

setTimeout ( expression, timeout );
setInterval ( expression, interval );

Taking a guess at what it is you're asking for. I'm assuming by millisecond frame timer you're looking for something that acts like the following,

double mticks()
{
    struct timeval tv;
    gettimeofday(&tv, 0);
    return (double) tv.tv_usec / 1000 + tv.tv_sec * 1000;
}

but uses std::chrono instead,

double mticks()
{
    typedef std::chrono::high_resolution_clock clock;
    typedef std::chrono::duration<float, std::milli> duration;

    static clock::time_point start = clock::now();
    duration elapsed = clock::now() - start;
    return elapsed.count();
}

Hope this helps.

I was looking for an easier-to-read time-loop when I encountered this question here. Something like:

for sec in max_seconds(10):
      do_something()

So I created this helper:

# allow easy time-boxing: 'for sec in max_seconds(42): do_something()'
def max_seconds(max_seconds, *, interval=1):
    interval = int(interval)
    start_time = time.time()
    end_time = start_time + max_seconds
    yield 0
    while time.time() < end_time:
        if interval > 0:
            next_time = start_time
            while next_time < time.time():
                next_time += interval
            time.sleep(int(round(next_time - time.time())))
        yield int(round(time.time() - start_time))
        if int(round(time.time() + interval)) > int(round(end_time)): 
            return

It only works with full seconds which was OK for my use-case.

Examples:

for sec in max_seconds(10) # -> 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
for sec in max_seconds(10, interval=3) # -> 0, 3, 6, 9
for sec in max_seconds(7): sleep(1.5) # -> 0, 2, 4, 6
for sec in max_seconds(8): sleep(1.5) # -> 0, 2, 4, 6, 8

Be aware that interval isn't that accurate, as I only wait full seconds (sleep never was any good for me with times < 1 sec). So if your job takes 500 ms and you ask for an interval of 1 sec, you'll get called at: 0, 500ms, 2000ms, 2500ms, 4000ms and so on. One could fix this by measuring time in a loop rather than sleep() ...

gettimeofday will return time accurate to microseconds within the resolution of the system clock. You might also want to check out the High Res Timers project on SourceForge.

The problem is that the timer variable is local, and its value is lost after each function call.

You need to persist it, you can put it outside the function, or if you don't want to expose the variable as global, you can store it in a closure, e.g.:

var endAndStartTimer = (function () {
  var timer; // variable persisted here
  return function () {
    window.clearTimeout(timer);
    //var millisecBeforeRedirect = 10000; 
    timer = window.setTimeout(function(){alert('Hello!');},10000); 
  };
})();

If you want to set something on a timer, you can use JavaScript's setTimeout or setInterval methods:

setTimeout ( expression, timeout );
setInterval ( expression, interval );

Where expression is a function and timeout and interval are integers in milliseconds. setTimeout runs the timer once and runs the expression once whereas setInterval will run the expression every time the interval passes.

So in your case it would work something like this:

setInterval(function() {
    //call $.ajax here
}, 5000); //5 seconds

As far as the Ajax goes, see jQuery's ajax() method. If you run an interval, there is nothing stopping you from calling the same ajax() from other places in your code.

If what you want is for an interval to run every 30 seconds until a user initiates a form submission...and then create a new interval after that, that is also possible:

setInterval() returns an integer which is the ID of the interval.

var id = setInterval(function() {
    //call $.ajax here
}, 30000); // 30 seconds

If you store that ID in a variable, you can then call clearInterval(id) which will stop the progression.

Then you can reinstantiate the setInterval() call after you've completed your ajax form submission.

Terminate the Timer once after awake at a specific time in milliseconds.

Timer t = new Timer();
t.schedule(new TimerTask() {
            @Override
             public void run() {
             System.out.println(" Run spcific task at given time.");
             t.cancel();
             }
 }, 10000);

In Workbook events:

Private Sub Workbook_Open()
    RunEveryTwoMinutes
End Sub

In a module:

Sub RunEveryTwoMinutes()
    //Add code here for whatever you want to happen
    Application.OnTime Now + TimeValue("00:02:00"), "RunEveryTwoMinutes"
End Sub

If you only want the first piece of code to execute after the workbook opens then just add a delay of 2 minutes into the Workbook_Open event

The solution you will use really depends on how long you need to wait between each execution of your function.

If you are waiting for longer than 10 minutes, I would suggest using AlarmManager.

// Some time when you want to run
Date when = new Date(System.currentTimeMillis());

try {
    Intent someIntent = new Intent(someContext, MyReceiver.class); // intent to be launched

    // Note: this could be getActivity if you want to launch an activity
    PendingIntent pendingIntent = PendingIntent.getBroadcast(
        context,
        0, // id (optional)
        someIntent, // intent to launch
        PendingIntent.FLAG_CANCEL_CURRENT // PendingIntent flag
    );

    AlarmManager alarms = (AlarmManager) context.getSystemService(
        Context.ALARM_SERVICE
    );

    alarms.setRepeating(
        AlarmManager.RTC_WAKEUP,
        when.getTime(),
        AlarmManager.INTERVAL_FIFTEEN_MINUTES,
        pendingIntent
    );
} catch(Exception e) {
    e.printStackTrace();
}

Once you have broadcasted the above Intent, you can receive your Intent by implementing a BroadcastReceiver. Note that this will need to be registered either in your application manifest or via the context.registerReceiver(receiver, intentFilter); method. For more information on BroadcastReceiver's please refer to the official documentation..

public class MyReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent)
    {
        System.out.println("MyReceiver: here!") // Do your work here
    }
}

If you are waiting for shorter than 10 minutes then I would suggest using a Handler.

final Handler handler = new Handler();
final int delay = 1000; // 1000 milliseconds == 1 second

handler.postDelayed(new Runnable() {
    public void run() {
        System.out.println("myHandler: here!"); // Do your work here
        handler.postDelayed(this, delay);
    }
}, delay);

use the

setInterval(function, 60000);

EDIT : (In case if you want to stop the clock after it is started)

Script section

<script>
var int=self.setInterval(function, 60000);
</script>

and HTML Code

<!-- Stop Button -->
<a href="#" onclick="window.clearInterval(int);return false;">Stop</a>

It says timer() is not available on android? You might find this article useful.

http://developer.android.com/resources/articles/timed-ui-updates.html

I was wrong. Timer() is available. It seems you either implement it the way it is one shot operation:

schedule(TimerTask task, Date when) // Schedule a task for single execution.

Or you cancel it after the first execution:

cancel()  // Cancels the Timer and all scheduled tasks.

http://developer.android.com/reference/java/util/Timer.html

I'm using https://pub.dev/packages/flutter_countdown_timer

dependencies: flutter_countdown_timer: ^1.0.0

$ flutter pub get

CountdownTimer(endTime: 1594829147719)

1594829147719 is your timestamp in milliseconds

Here's a solution I used (it needs #include <time.h>):

int msec = 0, trigger = 10; /* 10ms */
clock_t before = clock();

do {
  /*
   * Do something to busy the CPU just here while you drink a coffee
   * Be sure this code will not take more than `trigger` ms
   */

  clock_t difference = clock() - before;
  msec = difference * 1000 / CLOCKS_PER_SEC;
  iterations++;
} while ( msec < trigger );

printf("Time taken %d seconds %d milliseconds (%d iterations)\n",
  msec/1000, msec%1000, iterations);

This is usually caused by an uncaught exception in the service itself. (Configuration file errors eg). Opening a command prompt and starting the service executable manually wil perhaps reveal the exception been thrown.

I would like to add a bit the answer by Avner Barr. When using int64, it appears that when we surpass the 1.0 value, the function seems to delay differently. So I think at this point, we should use NSTimeInterval.

So, the final code is:

NSTimeInterval delayInSeconds = 0.05;

dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){

//do your tasks here

});

I believe you are looking for the setTimeout function.

To make your code a little neater, define a separate function for onclick in a <script> block:

function myClick() {
  setTimeout(
    function() {
      document.getElementById('div1').style.display='none';
      document.getElementById('div2').style.display='none';
    }, 5000);
}

then call your function from onclick

onclick="myClick();"

My code is as follows:

new java.util.Timer().schedule(

    new java.util.TimerTask() {
        @Override
        public void run() {
            // your code here, and if you have to refresh UI put this code: 
           runOnUiThread(new   Runnable() {
                  public void run() {
                            //your code

                        }
                   });
        }
    }, 
    5000 
);

System.nanoTime() isn't supported in older JVMs. If that is a concern, stick with currentTimeMillis

Regarding accuracy, you are almost correct. On SOME Windows machines, currentTimeMillis() has a resolution of about 10ms (not 50ms). I'm not sure why, but some Windows machines are just as accurate as Linux machines.

I have used GAGETimer in the past with moderate success.

function wait(time)
    local duration = os.time() + time
    while os.time() < duration do end
end

This is probably one of the easiest ways to add a wait/sleep function to your script

If you want a real timer you need to use the date object.

Calculate the difference.

Format your string.

window.onload=function(){
      var start=Date.now(),r=document.getElementById('r');
      (function f(){
      var diff=Date.now()-start,ns=(((3e5-diff)/1e3)>>0),m=(ns/60)>>0,s=ns-m*60;
      r.textContent="Registration closes in "+m+':'+((''+s).length>1?'':'0')+s;
      if(diff>3e5){
         start=Date.now()
      }
      setTimeout(f,1e3);
      })();
}

Example

Jsfiddle

not so precise timer

var time=5*60,r=document.getElementById('r'),tmp=time;

setInterval(function(){
    var c=tmp--,m=(c/60)>>0,s=(c-m*60)+'';
    r.textContent='Registration closes in '+m+':'+(s.length>1?'':'0')+s
    tmp!=0||(tmp=time);
},1000);

JsFiddle

Any other places you use TimerEventProcessor or Counter?

Anyway, you can not rely on the Event being exactly delivered one per second. The time may vary, and the system will not make sure the average time is correct.

So instead of _Counter, you should use:

 // when starting the timer:
 DateTime _started = DateTime.UtcNow;

 // in TimerEventProcessor:
 seconds = (DateTime.UtcNow-started).TotalSeconds;
 Label.Text = seconds.ToString();

Note: this does not solve the Problem of TimerEventProcessor being called to often, or _Counter incremented to often. it merely masks it, but it is also the right way to do it.

If you're using Rails, you can just make an empty file in the public folder and use ajax to get that. Then parse the headers for the Date header. Files in the Public folder bypass the Rails stack, and so have lower latency.

I use these defines:

/** Use to init the clock */
#define TIMER_INIT \
    LARGE_INTEGER frequency; \
    LARGE_INTEGER t1,t2; \
    double elapsedTime; \
    QueryPerformanceFrequency(&frequency);


/** Use to start the performance timer */
#define TIMER_START QueryPerformanceCounter(&t1);

/** Use to stop the performance timer and output the result to the standard stream. Less verbose than \c TIMER_STOP_VERBOSE */
#define TIMER_STOP \
    QueryPerformanceCounter(&t2); \
    elapsedTime=(float)(t2.QuadPart-t1.QuadPart)/frequency.QuadPart; \
    std::wcout<<elapsedTime<<L" sec"<<endl;

Usage (brackets to prevent redefines):

TIMER_INIT

{
   TIMER_START
   Sleep(1000);
   TIMER_STOP
}

{
   TIMER_START
   Sleep(1234);
   TIMER_STOP
}

Output from usage example:

1.00003 sec
1.23407 sec

It is not necessary to stop timer, see nice solution from this post:

"You could let the timer continue firing the callback method but wrap your non-reentrant code in a Monitor.TryEnter/Exit. No need to stop/restart the timer in that case; overlapping calls will not acquire the lock and return immediately."

private void CreatorLoop(object state) 
 {
   if (Monitor.TryEnter(lockObject))
   {
     try
     {
       // Work here
     }
     finally
     {
       Monitor.Exit(lockObject);
     }
   }
 }

For a Timer (System.Windows.Forms.Timer).

The .Stop, then .Start methods worked as a reset.

You can also do it by using the Timer() function.

Code:

from threading import Timer

def hello():
  print("Hello")

t = Timer(0.05, hello)
t.start()  # After 0.05 seconds, "Hello" will be printed

So the first part of the answer is how to do what the subject asks as this was how I initially interpreted it and a few people seemed to find helpful. The question was since clarified and I've extended the answer to address that.

Setting a timer

First you need to create a Timer (I'm using the java.util version here):

import java.util.Timer;

..

Timer timer = new Timer();

To run the task once you would do:

timer.schedule(new TimerTask() {
  @Override
  public void run() {
    // Your database code here
  }
}, 2*60*1000);
// Since Java-8
timer.schedule(() -> /* your database code here */, 2*60*1000);

To have the task repeat after the duration you would do:

timer.scheduleAtFixedRate(new TimerTask() {
  @Override
  public void run() {
    // Your database code here
  }
}, 2*60*1000, 2*60*1000);

// Since Java-8
timer.scheduleAtFixedRate(() -> /* your database code here */, 2*60*1000, 2*60*1000);

Making a task timeout

To specifically do what the clarified question asks, that is attempting to perform a task for a given period of time, you could do the following:

ExecutorService service = Executors.newSingleThreadExecutor();

try {
    Runnable r = new Runnable() {
        @Override
        public void run() {
            // Database task
        }
    };

    Future<?> f = service.submit(r);

    f.get(2, TimeUnit.MINUTES);     // attempt the task for two minutes
}
catch (final InterruptedException e) {
    // The thread was interrupted during sleep, wait or join
}
catch (final TimeoutException e) {
    // Took too long!
}
catch (final ExecutionException e) {
    // An exception from within the Runnable task
}
finally {
    service.shutdown();
}

This will execute normally with exceptions if the task completes within 2 minutes. If it runs longer than that, the TimeoutException will be throw.

One issue is that although you'll get a TimeoutException after the two minutes, the task will actually continue to run, although presumably a database or network connection will eventually time out and throw an exception in the thread. But be aware it could consume resources until that happens.

According to Java Concurrency in Practice:

• Timer can be sensitive to changes in the system clock, ScheduledThreadPoolExecutor isn't.
• Timer has only one execution thread, so long-running task can delay other tasks. ScheduledThreadPoolExecutor can be configured with any number of threads. Furthermore, you have full control over created threads, if you want (by providing ThreadFactory).
• Runtime exceptions thrown in TimerTask kill that one thread, thus making Timer dead :-( ... i.e. scheduled tasks will not run anymore. ScheduledThreadExecutor not only catches runtime exceptions, but it lets you handle them if you want (by overriding afterExecute method from ThreadPoolExecutor). Task which threw exception will be canceled, but other tasks will continue to run.

If you can use ScheduledThreadExecutor instead of Timer, do so.

One more thing... while ScheduledThreadExecutor isn't available in Java 1.4 library, there is a Backport of JSR 166 (java.util.concurrent) to Java 1.2, 1.3, 1.4, which has the ScheduledThreadExecutor class.

The Timer function also applies to Access 2007, Access 2010, Access 2013, Access 2016, Access 2007 Developer, Access 2010 Developer, Access 2013 Developer. Insert this code to to pause time for certain amount of seconds

T0 = Timer
Do
    Delay = Timer - T0
Loop Until Delay = 1 'Change this value to pause time in second

I think you should take a look at proper concurrency handling mechanisms (threads running into infinite loops doesn't sound good per se, btw). Make sure you read a little about the "killing" or "stopping" Threads topic.

What you are describing,sound very much like a "rendezvous", so you may want to take a look at the CyclicBarrier.

There may be other constructs (like using CountDownLatch for example) that can resolve your problem (one thread waiting with a timeout for the latch, the other should count down the latch if it has done it's work, which would release your first thread either after a timeout or when the latch countdown is invoked).

I usually recommend two books in this area: Concurrent Programming in Java and Java Concurrency in Practice.

This may be overkill for what you're looking for, but there is an npm package called marky that you can use to do this. It gives you a couple of extra features beyond just starting and stopping a timer. You just need to install it via npm and then import the dependency anywhere you'd like to use it. Here is a link to the npm package: https://www.npmjs.com/package/marky

An example of use after installing via npm would be as follows:

import * as _M from 'marky';

@Component({
 selector: 'app-test',
 templateUrl: './test.component.html',
 styleUrls: ['./test.component.scss']
})

export class TestComponent implements OnInit {
 Marky = _M;
}

constructor() {}

ngOnInit() {}

startTimer(key: string) {
 this.Marky.mark(key);
}

stopTimer(key: string) {
 this.Marky.stop(key);
}

key is simply a string which you are establishing to identify that particular measurement of time. You can have multiple measures which you can go back and reference your timer stats using the keys you create.

Best way to swap images with javascript with left vertical clickable thumbnails

SCRIPT FILE: function swapImages() {

    window.onload = function () {
        var img = document.getElementById("img_wrap");
        var imgall = img.getElementsByTagName("img");
        var firstimg = imgall[0]; //first image
        for (var a = 0; a <= imgall.length; a++) {
            setInterval(function () {
                var rand = Math.floor(Math.random() * imgall.length);
                firstimg.src = imgall[rand].src;
            }, 3000);



            imgall[1].onmouseover = function () {
                 //alert("what");
                clearInterval();
                firstimg.src = imgall[1].src;


            }
            imgall[2].onmouseover = function () {
                clearInterval();
                firstimg.src = imgall[2].src;
            }
            imgall[3].onmouseover = function () {
                clearInterval();
                firstimg.src = imgall[3].src;
            }
            imgall[4].onmouseover = function () {
                clearInterval();
                firstimg.src = imgall[4].src;
            }
            imgall[5].onmouseover = function () {
                clearInterval();
                firstimg.src = imgall[5].src;
            }
        }

    }


}

    var timeInterval = 5;
    var blinkTime = 1;
    var open_signal = 'signal1';
    var total_signal = 1;

    $(document).ready(function () {
        for (var i = 1; i <= total_signal; i++) {
            var timer = (i == 1) ? timeInterval : (timeInterval * (i - 1));

            var str_html = '<div id="signal' + i + '">' +
                           '<span class="float_left">Signal ' + i + ' : </span>' +
                           '<div class="red float_left"></div>' +
                           '<div class="yellow float_left"></div>' +
                           '<div class="green float_left"></div>' +
                           '<div class="timer float_left">' + timer + '</div>' +
                           '<div style="clear: both;"></div>' +
                           '</div><div class="div_separate"></div>';

            $('.div_demo').append(str_html);
        }

        $('.div_demo .green').eq(0).css('background-color', 'green');
        $('.div_demo .red').css('background-color', 'red');
        $('.div_demo .red').eq(0).css('background-color', 'white');

        setInterval(function () {
            manageSignals();
        }, 1000);
    });

    function manageSignals() {
        var obj_timer = {};

        var temp_i = parseInt(open_signal.substr(6));
        if ($('#' + open_signal + ' .timer').html() == '0')
            open_signal = (temp_i == total_signal) ? 'signal1' : 'signal' + (temp_i + 1);

        for (var i = 1; i <= total_signal; i++) {
            var next_signal = (i == total_signal) ? 'signal1' : 'signal' + (i + 1);

            obj_timer['signal' + i] = parseInt($('#signal' + i + ' .timer').html()) - 1;

            if (obj_timer['signal' + i] == -1 && open_signal == next_signal && total_signal!=1) {
                obj_timer['signal' + i] = (timeInterval * (total_signal - 1)) - 1;

                $('#signal' + i + ' .red').css('background-color', 'red');
                $('#signal' + i + ' .yellow').css('background-color', 'white');
            }
            else if (obj_timer['signal' + i] == -1 && open_signal == 'signal' + i) {
                obj_timer['signal' + i] = (timeInterval - 1);

                $('#signal' + i + ' .red').css('background-color', 'white');
                $('#signal' + i + ' .yellow').css('background-color', 'white');
                $('#signal' + i + ' .green').css('background-color', 'green');
            }
            else if (obj_timer['signal' + i] == blinkTime && open_signal == 'signal' + i) {
                $('#signal' + i + ' .yellow').css('background-color', 'yellow');
                $('#signal' + i + ' .green').css('background-color', 'white');
            }

            $('#signal' + i + ' .timer').html(obj_timer['signal' + i]);
        }
    }
</script>

If you're already using lodash, you could use the inRange() function: https://lodash.com/docs/4.17.15#inRange

_.inRange(3, 2, 4);
// => true

_.inRange(4, 8);
// => true

_.inRange(4, 2);
// => false

_.inRange(2, 2);
// => false

_.inRange(1.2, 2);
// => true

_.inRange(5.2, 4);
// => false

_.inRange(-3, -2, -6);
// => true

Here is an alternative solution:

class extendedWebBrowser : WebBrowser
{
    /// <summary>
    /// Default constructor which will make the browser to ignore all errors
    /// </summary>
    public extendedWebBrowser()
    {
        this.ScriptErrorsSuppressed = true;

        FieldInfo field = typeof(WebBrowser).GetField("_axIWebBrowser2", BindingFlags.Instance | BindingFlags.NonPublic);
        if (field != null)
        {
             object axIWebBrowser2 = field.GetValue(this);
             axIWebBrowser2.GetType().InvokeMember("Silent", BindingFlags.SetProperty, null, axIWebBrowser2, new object[] { true });
        }
    }
}

Suppose you want to initialize a two dimensional integer vector with n rows and m column each having value 'VAL'

Write it as

std::vector<vector<int>> arr(n, vector<int>(m,VAL));

This VAL can be a integer type variable or constant such as 100

This is it guys! FIXED!

Wait and see: https://bugzilla.mozilla.org/show_bug.cgi?id=649849

or workaround

For those wondering:

https://bugzilla.mozilla.org/show_bug.cgi?id=649849#c59

First, because the bug has a lot of hostile spam in it, it creates a hostile workplace for anyone who gets assigned to this.

Secondly, the person who has the ability to do this (which includes rewriting ) has been allocated to another project (b2g) for the time being and wont have time until that project get nearer to completion.

Third, even when that person has the time again, there is no guarantee that this will be a priority because, despite webkit having this, it breaks the spec for how is supposed to work (This is what I was told, I do not personally know the spec)

Now see https://wiki.mozilla.org/B2G/Schedule_Roadmap ;)

The page no longer exists and the bug hasn't be fixed but an acceptable workaround came from João Cunha, you guys can thank him for now!

If you connect the DidEndOnExit event of the text field to an action (IBAction) in InterfaceBuilder, it will be messaged when the user dismisses the keyboard (with the return key) and the sender will be a reference to the UITextField that fired the event.

For example:

-(IBAction)userDoneEnteringText:(id)sender
{
    UITextField theField = (UITextField*)sender;
    // do whatever you want with this text field
}

Then, in InterfaceBuilder, link the DidEndOnExit event of the text field to this action on your controller (or whatever you're using to link events from the UI). Whenever the user enters text and dismisses the text field, the controller will be sent this message.

For Numbers with leading zeroes and comma separated:

You can put 'A' to affect the entire column'.

$objPHPExcel->getActiveSheet()->getStyle('A1')->getNumberFormat()->setFormatCode(PHPExcel_Style_NumberFormat::FORMAT_NUMBER_COMMA_SEPARATED1);

Then you can write to the cell as you normally would.

Add each line of the code to a variable and then write the variable to your inner HTML. See below:

var div = document.createElement('div');
div.setAttribute('class', 'post block bc2');
var str = "First Line";
str += "Second Line";
str += "So on, all of your lines";
div.innerHTML = str;
document.getElementById('posts').appendChild(div);

In the first example, ptr has not been initialized, so it points to an unspecified memory location. When you assign something to this unspecified location, your program blows up.

In the second example, the address is set when you say ptr = &q, so you're OK.

You can use the synchronizedCollection/List method in java.util.Collection to get a thread-safe collection from a non-thread-safe one.

Branch with short hash and last comment:

git branch -v

  develop      717c2f9 [ahead 42] blabla
* master       2722bbe [ahead 1] bla

The [] syntax for getting item by key or index is just syntax sugar.

When you evaluate a[i] Python calls a.__getitem__(i) (or type(a).__getitem__(a, i), but this distinction is about inheritance models and is not important here). Even if the class of a may not explicitly define this method, it is usually inherited from an ancestor class.

All the (Python 2.7) special method names and their semantics are listed here: https://docs.python.org/2.7/reference/datamodel.html#special-method-names

import matplotlib.pyplot as plt
from matplotlib.dates import date2num
import datetime

x = [
    datetime.datetime(2011, 1, 4, 0, 0),
    datetime.datetime(2011, 1, 5, 0, 0),
    datetime.datetime(2011, 1, 6, 0, 0)
]
x = date2num(x)

y = [4, 9, 2]
z = [1, 2, 3]
k = [11, 12, 13]

ax = plt.subplot(111)
ax.bar(x-0.2, y, width=0.2, color='b', align='center')
ax.bar(x, z, width=0.2, color='g', align='center')
ax.bar(x+0.2, k, width=0.2, color='r', align='center')
ax.xaxis_date()

plt.show()

I don't know what's the "y values are also overlapping" means, does the following code solve your problem?

ax = plt.subplot(111)
w = 0.3
ax.bar(x-w, y, width=w, color='b', align='center')
ax.bar(x, z, width=w, color='g', align='center')
ax.bar(x+w, k, width=w, color='r', align='center')
ax.xaxis_date()
ax.autoscale(tight=True)

plt.show()

Posted for completeness.

If you are looking for row count of all tables in all databases (which was what I was looking for) then I found this combination of this and this to work. No idea whether it is optimal or not:

SET NOCOUNT ON
DECLARE @AllTables table (DbName sysname,SchemaName sysname, TableName sysname, RowsCount int )
DECLARE
     @SQL nvarchar(4000)
SET @SQL='SELECT ''?'' AS DbName, s.name AS SchemaName, t.name AS TableName, p.rows AS RowsCount FROM [?].sys.tables t INNER JOIN sys.schemas s ON t.schema_id=s.schema_id INNER JOIN [?].sys.partitions p ON p.OBJECT_ID = t.OBJECT_ID'

INSERT INTO @AllTables (DbName, SchemaName, TableName, RowsCount)
    EXEC sp_msforeachdb @SQL
SET NOCOUNT OFF
SELECT DbName, SchemaName, TableName, SUM(RowsCount), MIN(RowsCount), SUM(1)
FROM @AllTables
WHERE RowsCount > 0
GROUP BY DbName, SchemaName, TableName
ORDER BY DbName, SchemaName, TableName

I had a similar situation. However I used a different solution.

In my model I create a property that does the dictionary lookup. In the template I then use the property.

In my model: -

@property
def state_(self):
    """ Return the text of the state rather than an integer """
    return self.STATE[self.state]

In my template: -

The state is: {{ item.state_ }}

The problem: The format of the file as to how it is saved. Use a proper text editor and save it with the .py extension and run it in terminal.

eg: file name should be saved as `example.py`
run
python example

To determine how many files there are in the current directory, put in ls -1 | wc -l. This uses wc to do a count of the number of lines (-l) in the output of ls -1. It doesn't count dotfiles. Please note that ls -l (that's an "L" rather than a "1" as in the previous examples) which I used in previous versions of this HOWTO will actually give you a file count one greater than the actual count. Thanks to Kam Nejad for this point.

If you want to count only files and NOT include symbolic links (just an example of what else you could do), you could use ls -l | grep -v ^l | wc -l (that's an "L" not a "1" this time, we want a "long" listing here). grep checks for any line beginning with "l" (indicating a link), and discards that line (-v).

Relative speed: "ls -1 /usr/bin/ | wc -l" takes about 1.03 seconds on an unloaded 486SX25 (/usr/bin/ on this machine has 355 files). "ls -l /usr/bin/ | grep -v ^l | wc -l" takes about 1.19 seconds.

Source: http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/x700.html

I use a table layout to fill the sides dynamically and 0-height, absolute-position divs for dynamic vertical positioning:

• no hard-coded dimensions
• no images
• no pseudo-elements
• respects background
• control bar appearance

https://jsfiddle.net/eq5gz5xL/18/

I found that a little below true center looks best with text; this can be adjusted where the 55% is (taller height makes the bar lower). The appearance of the line can be changed where the border-bottom is.

HTML:

<div class="title">
  <div class="title-row">
    <div class="bar-container">
      <div class="bar"></div>
    </div>
    <div class="text">
      Title
    </div>
    <div class="bar-container">
      <div class="bar"></div>
    </div>
  </div>
</div>

CSS:

.title{
  display: table;
  width: 100%
  background: linear-gradient(to right, white, lightgray);
}
.title-row{
  display: table-row;
}
.bar-container {
  display: table-cell;
  position: relative;
  width: 50%;
}
.bar {
  position: absolute;
  width: 100%;
  top: 55%;
  border-bottom: 1px solid black;
}
.text {
  display: table-cell;
  padding-left: 5px;
  padding-right: 5px;
  font-size: 36px;
}

For Angular 7 users:

Here I show you that you can activate or deactivate a simple class attribute named "blurred" with just a boolean. Therefore u need to use [ngClass].

TS class

blurredStatus = true

HTML

<div class="inner-wrapper" [ngClass]="{'blurred':blurredStatus}"></div>

Note that if you want a multi line text box you have to use a <textarea> instead of an <input type="text">.

/(.+)/(\d{4}-\d{2}-\d{2})-(\d+)(/.*)?$

1st Capturing Group (.+)

.+ matches any character (except for line terminators)

• + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)

2nd Capturing Group (\d{4}-\d{2}-\d{2})

\d{4} matches a digit (equal to [0-9])

• {4} Quantifier — Matches exactly 4 times

- matches the character - literally (case sensitive)

\d{2} matches a digit (equal to [0-9])

• {2} Quantifier — Matches exactly 2 times

- matches the character - literally (case sensitive)

\d{2} matches a digit (equal to [0-9])

• {2} Quantifier — Matches exactly 2 times

- matches the character - literally (case sensitive)

3rd Capturing Group (\d+)

\d+ matches a digit (equal to [0-9])

• + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)

4th Capturing Group (.*)?

? Quantifier — Matches between zero and one times, as many times as possible, giving back as needed (greedy)

.* matches any character (except for line terminators)

• * Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)

$ asserts position at the end of the string

Check if you have the linebreak-style rule configure as below either in your .eslintrc or in source code:

/*eslint linebreak-style: ["error", "unix"]*/

Since you're working on Windows, you may want to use this rule instead:

/*eslint linebreak-style: ["error", "windows"]*/

Refer to the documentation of linebreak-style:

When developing with a lot of people all having different editors, VCS applications and operating systems it may occur that different line endings are written by either of the mentioned (might especially happen when using the windows and mac versions of SourceTree together).

The linebreaks (new lines) used in windows operating system are usually carriage returns (CR) followed by a line feed (LF) making it a carriage return line feed (CRLF) whereas Linux and Unix use a simple line feed (LF). The corresponding control sequences are "\n" (for LF) and "\r\n" for (CRLF).

This is a rule that is automatically fixable. The --fix option on the command line automatically fixes problems reported by this rule.

But if you wish to retain CRLF line-endings in your code (as you're working on Windows) do not use the fix option.

Seems like the accepted answer does not work anymore. I found the correct method from another post: https://stackoverflow.com/a/46811403/6368026

Now you should use:

http://www.youtube.com/embed/videoseries?list=USERID And the USERID is your youtube user id with 'UU' appended.

For example, if your user id is TlQ5niAIDsLdEHpQKQsupg then you should put UUTlQ5niAIDsLdEHpQKQsupg. If you only have the channel id (which you can find in your channel URL) then just replace the first two characters (UC) with UU.

So in the end you would have an URL like this:

http://www.youtube.com/embed/videoseries?list=UUTlQ5niAIDsLdEHpQKQsupg

For embedding HTML text in your textview you can use Html.fromHTML() syntax. More information you will get from http://developer.android.com/reference/android/text/Html.html#fromHtml%28java.lang.String%29

Run below command into the current branch folder to merge from this <commit-id> to current branch, --no-commit do not make a new commit automatically

git merge --no-commit <commit-id>

git merge --continue can only be run after the merge has resulted in conflicts.

git merge --abort Abort the current conflict resolution process, and try to reconstruct the pre-merge state.

Use the Python set type. That would be the most Pythonic. :)

Also, since it's native, it should be the most optimized method too.

See:

http://docs.python.org/library/stdtypes.html#set

http://docs.python.org/library/sets.htm (for older python)

# Using Python 2.7 set literal format.
# Otherwise, use: l1 = set([1,2,6,8])
#
l1 = {1,2,6,8}
l2 = {2,3,5,8}
l3 = l1 - l2

It's called String#start_with?, not String#startswith: In Ruby, the names of boolean-ish methods end with ? and the words in method names are separated with an _. Not sure where the s went, personally, I'd prefer String#starts_with? over the actual String#start_with?

ISNULL(ColumnName, '')

Just index using you ind_pos

ind_pos = [1,5,7]
print (a[ind_pos]) 
[88 85 16]


In [55]: a = [0,88,26,3,48,85,65,16,97,83,91]

In [56]: import numpy as np

In [57]: arr = np.array(a)

In [58]: ind_pos = [1,5,7]

In [59]: arr[ind_pos]
Out[59]: array([88, 85, 16])

Try the below code -

playButton.setVisibility(View.INVISIBLE);

or -

playButton.setVisibility(View.GONE);

show it again with -

playButton.setVisibility(View.VISIBLE);

Come on guys, there is no need to loop, just use simple math to solve this equation system:

a*b = i;

a+b = j;

a = j/b;

a = i-b;

j/b = i-b; so:

b + j/b + i = 0

b^2 + i*b + j = 0

From here, its a quadratic equation, and it's trivial to find b (just implement the quadratic equation formula) and from there get the value for a.

EDIT:

There you go:

function finder($add,$product)
{

 $inside_root = $add*$add - 4*$product;

 if($inside_root >=0)
 {

     $b = ($add + sqrt($inside_root))/2;
     $a = $add - $b;

     echo "$a+$b = $add and $a*$b=$product\n";

 }else
 {
   echo "No real solution\n";
 }
}

Real live action:

http://codepad.org/JBxMgHBd

Are there situations in which sys.stdout.write() is preferable to print?

For example I'm working on small function which prints stars in pyramid format upon passing the number as argument, although you can accomplish this using end="" to print in a separate line, I used sys.stdout.write in co-ordination with print to make this work. To elaborate on this stdout.write prints in the same line where as print always prints its contents in a separate line.

import sys

def printstars(count):

    if count >= 1:
        i = 1
        while (i <= count):
            x=0
            while(x<i):
                sys.stdout.write('*')
                x = x+1
            print('')
            i=i+1

printstars(5)

You can use the following code example using Python 3 syntax:

from struct import pack
with open("foo.bin", "wb") as file:
  file.write(pack("<IIIII", *bytearray([120, 3, 255, 0, 100])))

Here is shell one-liner:

python -c $'from struct import pack\nwith open("foo.bin", "wb") as file: file.write(pack("<IIIII", *bytearray([120, 3, 255, 0, 100])))'

String s = "String="

String[] str = s.split("="); //now str[0] is "hello" and str[1] is "goodmorning,2,1"

add this string

Copied over from comment by @sloth

Instead of YourCollection.FirstOrDefault(), you could use YourCollection.DefaultIfEmpty(YourDefault).First() for example.

Example:

var viewModel = new CustomerDetailsViewModel
    {
            MainResidenceAddressSection = (MainResidenceAddressSection)addresses.DefaultIfEmpty(new MainResidenceAddressSection()).FirstOrDefault( o => o is MainResidenceAddressSection),
            RiskAddressSection = addresses.DefaultIfEmpty(new RiskAddressSection()).FirstOrDefault(o => !(o is MainResidenceAddressSection)),
    };

Nice jquery solution:

jQuery('a.auto-start').get(0).click();

You can even set different file name for download inside <a> tag:

Your download should start shortly. If not - you can use
<a href="/attachments-31-3d4c8970.zip" download="attachments-31.zip" class="download auto-start">direct link</a>.

As Michael said, the Chrome extension API doesn't offer a reliable way of doing this. On the other hand: there's a software I've been using myself for quite some time.

Try Sloppy, a Java application that simulates low bandwidth. It's browser independent, it's very easy to use and, best of all, it's free!

JavaScript's Date object supports the ISO date format, so as long as you have access to the date string, you can do something like this:

> foo = new Date("2012-07-14T01:00:00+01:00")
Sat, 14 Jul 2012 00:00:00 GMT
> foo.toTimeString()
'17:00:00 GMT-0700 (MST)'

If you want the time string without the seconds and the time zone then you can call the getHours() and getMinutes() methods on the Date object and format the time yourself.

-Filter only accepts a single string. -Include accepts multiple values, but qualifies the -Path argument. The trick is to append \* to the end of the path, and then use -Include to select multiple extensions. BTW, quoting strings is unnecessary in cmdlet arguments unless they contain spaces or shell special characters.

Get-ChildItem $originalPath\* -Include *.gif, *.jpg, *.xls*, *.doc*, *.pdf*, *.wav*, .ppt*

Note that this will work regardless of whether $originalPath ends in a backslash, because multiple consecutive backslashes are interpreted as a single path separator. For example, try:

Get-ChildItem C:\\\\\Windows

One other possible reason: in my case, I was attempting to save the child before saving the parent, on a brand new entity.

The code was something like this in a User.java model:

this.lastName = lastName;
this.isAdmin = isAdmin;
this.accountStatus = "Active";
this.setNewPassword(password);
this.timeJoin = new Date();
create();

The setNewPassword() method creates a PasswordHistory record and adds it to the history collection in User. Since the create() statement hadn't been executed yet for the parent, it was trying to save to a collection of an entity that hadn't yet been created. All I had to do to fix it was to move the setNewPassword() call after the call to create().

this.lastName = lastName;
this.isAdmin = isAdmin;
this.accountStatus = "Active";
this.timeJoin = new Date();
create();
this.setNewPassword(password);

You could also use the following function.

void tokenize(const string& str, vector<string>& tokens, const string& delimiters = ",")
{
  // Skip delimiters at beginning.
  string::size_type lastPos = str.find_first_not_of(delimiters, 0);

  // Find first non-delimiter.
  string::size_type pos = str.find_first_of(delimiters, lastPos);

  while (string::npos != pos || string::npos != lastPos) {
    // Found a token, add it to the vector.
    tokens.push_back(str.substr(lastPos, pos - lastPos));

    // Skip delimiters.
    lastPos = str.find_first_not_of(delimiters, pos);

    // Find next non-delimiter.
    pos = str.find_first_of(delimiters, lastPos);
  }
}

I think this may work.

public static byte[] StrToByteArray(string str)
    {
        Dictionary<string, byte> hexindex = new Dictionary<string, byte>();
        for (int i = 0; i <= 255; i++)
            hexindex.Add(i.ToString("X2"), (byte)i);

        List<byte> hexres = new List<byte>();
        for (int i = 0; i < str.Length; i += 2)            
            hexres.Add(hexindex[str.Substring(i, 2)]);

        return hexres.ToArray();
    }

You can use input text with "list" attribute, which refers to the datalist of values.

<input type="text" name="city" list="cityname">_x000D_
    <datalist id="cityname">_x000D_
      <option value="Boston">_x000D_
      <option value="Cambridge">_x000D_
    </datalist>

This creates a free text input field that also has a drop-down to select predefined choices. Attribution for example and more information: https://www.w3.org/wiki/HTML/Elements/datalist

You should be able to use the readonly attribute on the text input, and jQuery will still be able to edit its contents.

<input type='text' id='foo' readonly='true'>

Without libraries

If you want to do this in vanilla JS/ES6 you can use the following solution

worked only in NodeJS > 6

const args = process.argv
  .slice(2)
  .map((val, i)=>{
    let object = {};
    let [regexForProp, regexForVal] = (() => [new RegExp('^(.+?)='), new RegExp('\=(.*)')] )();
    let [prop, value] = (() => [regexForProp.exec(val), regexForVal.exec(val)] )();
    if(!prop){
      object[val] = true;
      return object;
    } else {
      object[prop[1]] = value[1] ;
      return object
    }
  })
  .reduce((obj, item) => {
    let prop = Object.keys(item)[0];
    obj[prop] = item[prop];
    return obj;
  }, {});

And this command

node index.js host=http://google.com port=8080 production

will produce the following result

console.log(args);//{ host:'http://google.com',port:'8080',production:true }
console.log(args.host);//http://google.com
console.log(args.port);//8080
console.log(args.production);//true

p.s. Please correct the code in map and reduce function if you find more elegant solution, thanks ;)

i wanted to set the height of the select box to be smaller than the default. i used

select {
   position: relative;
   height: 10px !important;
   display: inline-block;
}

this works on ie7 and ie8. you might only need the height property, i just added the position and display to override properties inherited from higher up the dom.

You shouldn't use the keypress event, but the keyup or keydown event because the keypress event is intended for real (printable) characters. keydown is handled at a lower level so it will capture all nonprinting keys like delete and enter.

This is an easy way to create custom events and raise them. You create a delegate and an event in the class you are throwing from. Then subscribe to the event from another part of your code. You have already got a custom event argument class so you can build on that to make other event argument classes. N.B: I have not compiled this code.

public partial class Form1 : Form
{
    private TestClass _testClass;
    public Form1()
    {
        InitializeComponent();
        _testClass = new TestClass();
        _testClass.OnUpdateStatus += new TestClass.StatusUpdateHandler(UpdateStatus);
    }

    private void UpdateStatus(object sender, ProgressEventArgs e)
    {
        SetStatus(e.Status);
    }

    private void SetStatus(string status)
    {
        label1.Text = status;
    }

    private void button1_Click_1(object sender, EventArgs e)
    {
         TestClass.Func();
    }

}

public class TestClass
{
    public delegate void StatusUpdateHandler(object sender, ProgressEventArgs e);
    public event StatusUpdateHandler OnUpdateStatus;

    public static void Func()
    {
        //time consuming code
        UpdateStatus(status);
        // time consuming code
        UpdateStatus(status);
    }

    private void UpdateStatus(string status)
    {
        // Make sure someone is listening to event
        if (OnUpdateStatus == null) return;

        ProgressEventArgs args = new ProgressEventArgs(status);
        OnUpdateStatus(this, args);
    }
}

public class ProgressEventArgs : EventArgs
{
    public string Status { get; private set; }

    public ProgressEventArgs(string status)
    {
        Status = status;
    }
}

Get the orientation (at any time in your js code) via

window.orientation

When window.orientation returns 0 or 180 then you are in portrait mode, when returning 90 or 270 then you are in landscape mode.

Complete code of passing data using fragment to fragment

Fragment fragment = new Fragment(); // replace your custom fragment class 
Bundle bundle = new Bundle();
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
                bundle.putString("key","value"); // use as per your need
                fragment.setArguments(bundle);
                fragmentTransaction.addToBackStack(null);
                fragmentTransaction.replace(viewID,fragment);
                fragmentTransaction.commit();

In custom fragment class

Bundle mBundle = new Bundle();
mBundle = getArguments();
mBundle.getString(key);  // key must be same which was given in first fragment

The TableModel behind the JTable handles all of the data behind the table. In order to add and remove rows from a table, you need to use a DefaultTableModel

To create the table with this model:

JTable table = new JTable(new DefaultTableModel(new Object[]{"Column1", "Column2"}));

To add a row:

DefaultTableModel model = (DefaultTableModel) table.getModel();
model.addRow(new Object[]{"Column 1", "Column 2", "Column 3"});

You can also remove rows with this method.

Full details on the DefaultTableModel can be found here

Just add this line as per your compileSdkVersion

buildToolsVersion "27.0.3"

You are using incorrect overload. You should use this overload

public static MvcHtmlString ActionLink(
    this HtmlHelper htmlHelper,
    string linkText,
    string actionName,
    string controllerName,
    Object routeValues,
    Object htmlAttributes
) 

And the correct code would be

<%= Html.ActionLink("Create New Part", "CreateParts", "PartList", new { parentPartId = 0 }, null)%>

Note that extra parameter at the end. For the other overloads, visit LinkExtensions.ActionLink Method. As you can see there is no string, string, string, object overload that you are trying to use.

You should call this function from the controller.

angular.module('App', [])
  .controller('CinemaCtrl', ['$scope', function($scope) {
    myFunction();
  }]);

Even with normal javascript/html your function won't run on page load as all your are doing is defining the function, you never call it. This is really nothing to do with angular, but since you're using angular the above would be the "angular way" to invoke the function.

Obviously better still declare the function in the controller too.

Edit: Actually I see your "onload" - that won't get called as angular injects the HTML into the DOM. The html is never "loaded" (or the page is only loaded once).

I had this problem as well, until I came up with this method.

public static int[] indexesOf(String s, String flag) {
    int flagLen = flag.length();
    String current = s;
    int[] res = new int[s.length()];
    int count = 0;
    int base = 0;
    while(current.contains(flag)) {
        int index = current.indexOf(flag);
        res[count] = index + base;
        base += index + flagLen;
        current = current.substring(current.indexOf(flag) + flagLen, current.length());
        ++ count;
    }
    return Arrays.copyOf(res, count);
}

This method can be used to find indexes of any flag of any length in a string, for example:

public class Main {

    public static void main(String[] args) {
        int[] indexes = indexesOf("Hello, yellow jello", "ll");

        // Prints [2, 9, 16]
        System.out.println(Arrays.toString(indexes));
    }

    public static int[] indexesOf(String s, String flag) {
        int flagLen = flag.length();
        String current = s;
        int[] res = new int[s.length()];
        int count = 0;
        int base = 0;
        while(current.contains(flag)) {
            int index = current.indexOf(flag);
            res[count] = index + base;
            base += index + flagLen;
            current = current.substring(current.indexOf(flag) + flagLen, current.length());
            ++ count;
        }
        return Arrays.copyOf(res, count);
    }
}

In JAVA, values like:

1. 8.5
2. 3.9
3. (and so on..)

Is assumed as double and not float.

You can also perform a cast in order to solve the problem:

float b = (float) 3.5;

Another solution:

float b = 3.5f;

For dynamic SQL use:

'IN(' ||array_to_string(some_array, ',')||')'

Example

DO LANGUAGE PLPGSQL $$

DECLARE
    some_array bigint[];
    sql_statement text;

BEGIN

    SELECT array[1, 2] INTO some_array;
    RAISE NOTICE '%', some_array;

    sql_statement := 'SELECT * FROM my_table WHERE my_column IN(' ||array_to_string(some_array, ',')||')';
    RAISE NOTICE '%', sql_statement;

END;

$$;

Result: NOTICE: {1,2} NOTICE: SELECT * FROM my_table WHERE my_column IN(1,2)

I had this happen as a result of a configuration error in web.config. Checking the connection string etc might be the answer for the time out.

In my case, migrating a Spring 3.1 app up to 3.2.7, my solution was similar to Matthias's but a bit different -- thus why I'm documenting it here:

In my POM I found this dependency and changed it from 6.0 to 7.0:

    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-web-api</artifactId>
        <version>7.0</version>
        <scope>provided</scope>
    </dependency>

Then later in the POM I upgraded this plugin from 6.0 to 7.0:

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.1</version>
            <executions>
                <execution>
                    ...
                    <configuration>
                        ...
                        <artifactItems>
                            <artifactItem>
                                <groupId>javax</groupId>
                                <artifactId>javaee-endorsed-api</artifactId>
                                <version>7.0</version>
                                <type>jar</type>
                            </artifactItem>
                        </artifactItems>
                    </configuration>
                </execution>
            </executions>
        </plugin>

A string literal is delimited by quotation marks and is of type char* not char.

Example: "hello"

So when you compare a char to a char* you will get that same compiling error.

char c = 'c';
char *p = "hello";

if(c==p)//compiling error
{
} 

To fix use a char literal which is delimited by single quotes.

Example: 'c'

Remove $CATALINA_HOME/webapps/ROOT. Update $CATALINA_HOME/conf/server.xml, make sure that Host element look like the following text:

<Host name="localhost"  appBase="webapps"
      unpackWARs="true" autoDeploy="false" deployOnStartup="false">
  <Context path="" docBase="myApp"></Context>

It works with Tomcat 8. autoDeploy and deployOnStartup need to set to false to prevent tomcat from deploying myApp twice.

The simplest way to add a column is to use "withColumn". Since the dataframe is created using sqlContext, you have to specify the schema or by default can be available in the dataset. If the schema is specified, the workload becomes tedious when changing every time.

Below is an example that you can consider:

from pyspark.sql import SQLContext
from pyspark.sql.types import *
sqlContext = SQLContext(sc) # SparkContext will be sc by default 

# Read the dataset of your choice (Already loaded with schema)
Data = sqlContext.read.csv("/path", header = True/False, schema = "infer", sep = "delimiter")

# For instance the data has 30 columns from col1, col2, ... col30. If you want to add a 31st column, you can do so by the following:
Data = Data.withColumn("col31", "Code goes here")

# Check the change 
Data.printSchema()

I hope I'm understanding the problem correctly, but it looks like you don't have a reference back to your DrawFrame object from DrawCircle.

Try this:

Change your constructor signature for DrawCircle to take in a DrawFrame object. Within the constructor, set the class variable "d" to the DrawFrame object you just took in. Now add the getWidth/getHeight methods to DrawFrame as mentioned in previous answers. See if that allows you to get what you're looking for.

Your DrawCircle constructor should be changed to something like:

public DrawCircle(DrawFrame frame)
{
    d = frame;
    w = 400;
    h = 400;
    diBig = 300;
    diSmall = 10;
    maxRad = (diBig/2) - diSmall;
    xSq = 50;
    ySq = 50;
    xPoint = 200;
    yPoint = 200;
}

The last line of code in DrawFrame should look something like:

contentPane.add(new DrawCircle(this));

Then, try using d.getheight(), d.getWidth() and so on within DrawCircle. This assumes you still have those methods available on DrawFrame to access them, of course.

As mentioned, but with a code sample:

foreach(var item in collection.ToArray())
    collection.Add(new Item...);

For people looking to do if statements with multiple 'or' values.

<div ng-if="::(a || b || c || d || e || f)"><div>

I have programmed a module wich is able to hash big files with different algorithms.

pip3 install py_essentials

Use the module like this:

from py_essentials import hashing as hs
hash = hs.fileChecksum("path/to/the/file.txt", "sha256")

use this too :

if(e.preventDefault) 
   e.preventDefault(); 
else 
   e.returnValue = false;

Becoz e.preventDefault() is not supported in IE( some versions ). In IE it is e.returnValue = false

>>> from datetime import datetime

>>>  a = datetime.now()

# wait a bit 
>>> b = datetime.now()

>>> d = b - a # yields a timedelta object
>>> d.seconds
7

(7 will be whatever amount of time you waited a bit above)

I find datetime.datetime to be fairly useful, so if there's a complicated or awkward scenario that you've encountered, please let us know.

EDIT: Thanks to @WoLpH for pointing out that one is not always necessarily looking to refresh so frequently that the datetimes will be close together. By accounting for the days in the delta, you can handle longer timestamp discrepancies:

>>> a = datetime(2010, 12, 5)
>>> b = datetime(2010, 12, 7)
>>> d = b - a
>>> d.seconds
0
>>> d.days
2
>>> d.seconds + d.days * 86400
172800

A number is an integer if its modulo %1 is 0-

function isInt(n){
    return (typeof n== 'number' && n%1== 0);
}

This is only as good as javascript gets- say +- ten to the 15th.

isInt(Math.pow(2,50)+.1) returns true, as does Math.pow(2,50)+.1 == Math.pow(2,50)

As pointed out in @BillKarwin's comment on @cnu's answer...

When combining with a LIMIT, I've found that it performs much better (at least with PostgreSQL 9.1) to JOIN with a random ordering rather than to directly order the actual rows: e.g.

SELECT * FROM tbl_post AS t
JOIN ...
JOIN ( SELECT id, CAST(-2147483648 * RANDOM() AS integer) AS rand
       FROM tbl_post
       WHERE create_time >= 1349928000
     ) r ON r.id = t.id
WHERE create_time >= 1349928000 AND ...
ORDER BY r.rand
LIMIT 100

Just make sure that the 'r' generates a 'rand' value for every possible key value in the complex query which is joined with it but still limit the number of rows of 'r' where possible.

The CAST as Integer is especially helpful for PostgreSQL 9.2 which has specific sort optimisation for integer and single precision floating types.

MSBuild (Visual Studio project/solution *.vcproj/*.sln):

Add to Additional options in Project Settings: /std:c++latest to enable latest features - currently C++17 as of VS2017, VS2015 Update 3.

https://blogs.msdn.microsoft.com/vcblog/2016/06/07/standards-version-switches-in-the-compiler/

/permissive- will disable non-standard C++ extensions and will enable standard conformance in VS2017.

https://blogs.msdn.microsoft.com/vcblog/2016/11/16/permissive-switch/

EDIT (Oct 2018): The latest VS2017 features are documented here:

https://docs.microsoft.com/en-gb/cpp/build/reference/std-specify-language-standard-version

VS2017 supports: /std:[c++14|c++17|c++latest] now. These flags can be set via the project's property pages:

To set this compiler option in the Visual Studio development environment

1. Open the project's Property Pages dialog box. For details, see Working with Project Properties.
2. Select Configuration Properties, C/C++, Language.
3. In C++ Language Standard, choose the language standard to support from the dropdown control, then choose OK or Apply to save your changes.

CMake:

Visual Studio 2017 (15.7+) supports CMake projects. CMake makes it possible to enable modern C++ features in various ways. The most basic option is to enable a modern C++ standard by setting a target's property in CMakeLists.txt:

add_library (${PROJECT_NAME})
set_property (TARGET ${PROJECT_NAME}
  PROPERTY
    # Enable C++17 standard compliance
    CXX_STANDARD 17
)

In the case of an interface library:

add_library (${PROJECT_NAME} INTERFACE)
target_compile_features (${PROJECT_NAME}
  INTERFACE
    # Enable C++17 standard compliance
    cxx_std_17
)

I was getting this error while posting a FormData object because I was not setting up the ajax call correctly. Setup below fixed my issue.

var myformData = new FormData();        
myformData.append('leadid', $("#leadid").val());
myformData.append('date', $(this).val());
myformData.append('time', $(e.target).prev().val());

$.ajax({
    method: 'post',
    processData: false,
    contentType: false,
    cache: false,
    data: myformData,
    enctype: 'multipart/form-data',
    url: 'include/ajax.php',
    success: function (response) {
        $("#subform").html(response).delay(4000).hide(1); 
    }
});

The simplest way will be use the react-copy-to-clipboard npm package.

You can install it with the following command

npm install --save react react-copy-to-clipboard

Use it in the following manner.

const App = React.createClass({
  getInitialState() {
    return {value: '', copied: false};
  },


  onChange({target: {value}}) {
    this.setState({value, copied: false});
  },


  onCopy() {
    this.setState({copied: true});
  },


  render() {
    return (
      <div>

          <input value={this.state.value} size={10} onChange={this.onChange} />

        <CopyToClipboard text={this.state.value} onCopy={this.onCopy}>
          <button>Copy</button>
        </CopyToClipboard>

                <div>
        {this.state.copied ? <span >Copied.</span> : null}
                </div>
        <br />

        <input type="text" />

      </div>
    );
  }
});

ReactDOM.render(<App />, document.getElementById('container'));

A detailed explanation is provided at the following link

https://www.npmjs.com/package/react-copy-to-clipboard

Here is a running fiddle.

i use concantenate. works for me.

1. fill j2-j14 with '(appostrophe)
2. enter L2 with formula =concantenate(j2,k2)
3. copy L2 to L3-L14

The locks are always taken at DB level:-

Oracle official Document:- To avoid conflicts during a transaction, a DBMS uses locks, mechanisms for blocking access by others to the data that is being accessed by the transaction. (Note that in auto-commit mode, where each statement is a transaction, locks are held for only one statement.) After a lock is set, it remains in force until the transaction is committed or rolled back. For example, a DBMS could lock a row of a table until updates to it have been committed. The effect of this lock would be to prevent a user from getting a dirty read, that is, reading a value before it is made permanent. (Accessing an updated value that has not been committed is considered a dirty read because it is possible for that value to be rolled back to its previous value. If you read a value that is later rolled back, you will have read an invalid value.)

How locks are set is determined by what is called a transaction isolation level, which can range from not supporting transactions at all to supporting transactions that enforce very strict access rules.

One example of a transaction isolation level is TRANSACTION_READ_COMMITTED, which will not allow a value to be accessed until after it has been committed. In other words, if the transaction isolation level is set to TRANSACTION_READ_COMMITTED, the DBMS does not allow dirty reads to occur. The interface Connection includes five values that represent the transaction isolation levels you can use in JDBC.

Set "C:\xampp\php" in your PATH Environment Variable. Then restart CMD prompt.

I'll try to give a proper answer myself:

The only punctuations that should be allowed in a name are full stop, apostrophe and hyphen. I haven't seen any other case in the list of corner cases.

Regarding numbers, there's only one case with an 8. I think I can safely disallow that.

Regarding letters, any letter is valid.

I also want to include space.

This would sum up to this regex:

^[\p{L} \.'\-]+$

This presents one problem, i.e. the apostrophe can be used as an attack vector. It should be encoded.

So the validation code should be something like this (untested):

var name = nameParam.Trim();
if (!Regex.IsMatch(name, "^[\p{L} \.\-]+$")) 
    throw new ArgumentException("nameParam");
name = name.Replace("'", "'");  //' does not work in IE

Can anyone think of a reason why a name should not pass this test or a XSS or SQL Injection that could pass?

complete tested solution

using System;
using System.Text.RegularExpressions;

namespace test
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            var names = new string[]{"Hello World", 
                "John",
                "João",
                "???",
                "???",
                "??",
                "??",
                "??????",
                "Te???e?a",
                "?????????",
                "???? ?????",
                "?????????",
                "??????",
                "?",
                "D'Addario",
                "John-Doe",
                "P.A.M.",
                "' --",
                "<xss>",
                "\""
            };
            foreach (var nameParam in names)
            {
                Console.Write(nameParam+" ");
                var name = nameParam.Trim();
                if (!Regex.IsMatch(name, @"^[\p{L}\p{M}' \.\-]+$"))
                {
                    Console.WriteLine("fail");
                    continue;
                }
                name = name.Replace("'", "&#39;");
                Console.WriteLine(name);
            }
        }
    }
}

Like the following?

if (($ip=filter_input(INPUT_SERVER, 'REMOTE_ADDR', validate_ip)) === false or empty($ip)) {
    exit;
}
echo $ip;

PS

if (($ip=filter_input(INPUT_SERVER, 'REMOTE_ADDR', FILTER_VALIDATE_IP|FILTER_FLAG_NO_PRIV_RANGE|FILTER_FLAG_NO_RES_RANGE)) === false) {
    header('HTTP/1.0 400 Bad Request');
    exit;
}

All headers beginning with 'HTTP_' or 'X-' may be spoofed, respectively is user defined. If you want to keep track, use cookies, etc.

Also with Kotlin:

fun SharedPreferences.Editor.putIntegerArrayList(key: String, list: ArrayList<Int>?): SharedPreferences.Editor {
    putString(key, list?.joinToString(",") ?: "")
    return this
}

fun SharedPreferences.getIntegerArrayList(key: String, defValue: ArrayList<Int>?): ArrayList<Int>? {
    val value = getString(key, null)
    if (value.isNullOrBlank())
        return defValue
    return ArrayList (value.split(",").map { it.toInt() }) 
}

Instead of you manual adding the tracing enabling bit into web.config you can also try using the WCF configuration editor which comes with VS SDK to enable tracing

https://stackoverflow.com/a/16715631/2218571

In my project with netcore 2.2 I use this code:

[HttpGet]
[Route( "something" )]
public IActionResult GetSomething()
{
    string payload = "Something";

    OkObjectResult result = Ok( payload );

    // currently result.Formatters is empty but we'd like to ensure it will be so in the future
    result.Formatters.Clear();

    // force response as xml
    result.Formatters.Add( new Microsoft.AspNetCore.Mvc.Formatters.XmlSerializerOutputFormatter() );

    return result;
}

It forces only one action within a controller to return a xml without effect to other actions. Also this code doesn't contain neither HttpResponseMessage or StringContent or ObjectContent which are disposable objects and hence should be handled appropriately (it is especially a problem if you use any of code analyzers that reminds you about it).

Going further you could use a handy extension like this:

public static class ObjectResultExtensions
{
    public static T ForceResultAsXml<T>( this T result )
        where T : ObjectResult
    {
        result.Formatters.Clear();
        result.Formatters.Add( new Microsoft.AspNetCore.Mvc.Formatters.XmlSerializerOutputFormatter() );

        return result;
    }
}

And your code will become like this:

[HttpGet]
[Route( "something" )]
public IActionResult GetSomething()
{
    string payload = "Something";

    return Ok( payload ).ForceResultAsXml();
}

In addition, this solution looks like an explicit and clean way to force return as xml and it is easy to add to your existent code.

P.S. I used fully-qualified name Microsoft.AspNetCore.Mvc.Formatters.XmlSerializerOutputFormatter just to avoid ambiguity.

import string 

sentence = "I     am having  a   very  nice  23!@$      day. "
# Remove all punctuations
sentence = sentence.translate(str.maketrans('', '', string.punctuation))
# Remove all numbers"
sentence = ''.join([word for word in sentence if not word.isdigit()])
count = 0;
for index in range(len(sentence)-1) :
    if sentence[index+1].isspace() and not sentence[index].isspace():
        count += 1 
print(count)

The easiest way I found, summarized in a few pictures:

You could skip a few steps (up to step 4) by simply navigating to chrome://settings/languages right away.

FETCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository.

Actually, ... not always considering that, with Git 2.29 (Q4 2020), "git fetch"^(man) learned --no-write-fetch-head option to avoid writing the FETCH_HEAD file.

See commit 887952b (18 Aug 2020) by Junio C Hamano (gitster).
^{(Merged by Junio C Hamano -- gitster -- in commit b556050, 24 Aug 2020)}

fetch: optionally allow disabling FETCH_HEAD update

^{Signed-off-by: Derrick Stolee}

If you run fetch but record the result in remote-tracking branches, and either if you do nothing with the fetched refs (e.g. you are merely mirroring) or if you always work from the remote-tracking refs (e.g. you fetch and then merge origin/branchname separately), you can get away with having no FETCH_HEAD at all.

Teach "git fetch"^(man) a command line option "--[no-]write-fetch-head".

• The default is to write FETCH_HEAD, and the option is primarily meant to be used with the "--no-" prefix to override this default, because there is no matching fetch.writeFetchHEAD configuration variable to flip the default to off (in which case, the positive form may become necessary to defeat it).

Note that under "--dry-run" mode, FETCH_HEAD is never written; otherwise you'd see list of objects in the file that you do not actually have.

Passing --write-fetch-head does not force [git fetch](https://github.com/git/git/blob/887952b8c680626f4721cb5fa57704478801aca4/Documentation/git-fetch.txt)<sup>([man](https://git-scm.com/docs/git-fetch))</sup> to write the file.

fetch-options now includes in its man page:

--[no-]write-fetch-head

Write the list of remote refs fetched in the FETCH_HEAD file directly under $GIT_DIR.
This is the default.

Passing --no-write-fetch-head from the command line tells Git not to write the file.
Under --dry-run option, the file is never written.

Consider also, still with Git 2.29 (Q4 2020), the FETCH_HEAD is now always read from the filesystem regardless of the ref backend in use, as its format is much richer than the normal refs, and written directly by "git fetch"^(man) as a plain file..

See commit e811530, commit 5085aef, commit 4877c6c, commit e39620f (19 Aug 2020) by Han-Wen Nienhuys (hanwen).
^{(Merged by Junio C Hamano -- gitster -- in commit 98df75b, 27 Aug 2020)}

refs: read FETCH_HEAD and MERGE_HEAD generically

^{Signed-off-by: Han-Wen Nienhuys}

The FETCH_HEAD and MERGE_HEAD refs must be stored in a file, regardless of the type of ref backend. This is because they can hold more than just a single ref.

To accomodate them for alternate ref backends, read them from a file generically in refs_read_raw_ref().

With Git 2.29 (Q4 2020), Updates to on-demand fetching code in lazily cloned repositories.

See commit db3c293 (02 Sep 2020), and commit 9dfa8db, commit 7ca3c0a, commit 5c3b801, commit abcb7ee, commit e5b9421, commit 2b713c2, commit cbe566a (17 Aug 2020) by Jonathan Tan (jhowtan).
^{(Merged by Junio C Hamano -- gitster -- in commit b4100f3, 03 Sep 2020)}

fetch: no FETCH_HEAD display if --no-write-fetch-head

^{Signed-off-by: Jonathan Tan}

887952b8c6 ("fetch: optionally allow disabling FETCH_HEAD update", 2020-08-18, Git v2.29.0 -- merge listed in batch #10) introduced the ability to disable writing to FETCH_HEAD during fetch, but did not suppress the "<source> -> FETCH_HEAD" message when this ability is used.

This message is misleading in this case, because FETCH_HEAD is not written.

Also, because "fetch" is used to lazy-fetch missing objects in a partial clone, this significantly clutters up the output in that case since the objects to be fetched are potentially numerous.

Therefore, suppress this message when --no-write-fetch-head is passed (but not when --dry-run is set).

tl;dr

Instant.now()                           // Capture the current moment in UTC.
.atZone( ZoneId.systemDefault() )       // Adjust into the JVM's current default time zone. Same moment, different wall-clock time. Produces a `ZonedDateTime` object.
.toInstant()                            // Extract a `Instant` (always in UTC) object from the `ZonedDateTime` object.
.atZone( ZoneId.of( "Europe/Paris" ) )  // Adjust the `Instant` into a specific time zone. Renders a `ZonedDateTime` object. Same moment, different wall-clock time.
.toInstant()                            // And back to UTC again.

java.time

The modern approach uses the java.time classes that supplanted the troublesome old legacy date-time classes (Date, Calendar, etc.).

Your use of the word "local" contradicts the usage in the java.time class. In java.time, "local" means any locality or all localities, but not any one particular locality. The java.time classes with names starting with "Local…" all lack any concept of time zone or offset-from-UTC. So they do not represent a specific moment, they are not a point on the timeline, whereas your Question is all about moments, points on the timeline viewed through various wall-clock times.

Get the current system time (local time)

If you want to capture the current moment in UTC, use Instant. The Instant class represents a moment on the timeline in UTC with a resolution of nanoseconds (up to nine (9) digits of a decimal fraction).

Instant instant = Instant.now() ;  // Capture the current moment in UTC.

Adjust into a time zone by applying a ZoneId to get a ZonedDateTime. Same moment, same point on the timeline, different wall-clock time.

Specify a proper time zone name in the format of continent/region, such as America/Montreal, Africa/Casablanca, or Pacific/Auckland. Never use the 3-4 letter abbreviation such as EST or IST as they are not true time zones, not standardized, and not even unique(!).

ZoneId z = ZoneId.of( "America/Montreal" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;  // Same moment, different wall-clock time.

As a shortcut, you can skip the usage of Instant to get a ZonedDateTime.

ZoneId z = ZoneId.of( "America/Montreal" ) ;
ZonedDateTime zdt = ZonedDateTime.now( z ) ;

Convert Local time to UTC // Works Fine Till here

You can adjust from the zoned date-time to UTC by extracting an Instant from a ZonedDateTime.

ZoneId z = ZoneId.of( "America/Montreal" ) ;
ZonedDateTime zdt = ZonedDateTime.now( z ) ;
Instant instant = zdt.toInstant() ;

Reverse the UTC time, back to local time.

As shown above, apply a ZoneId to adjust the same moment into another wall-clock time used by the people of a certain region (a time zone).

Instant instant = Instant.now() ;  // Capture current moment in UTC.

ZoneId zDefault = ZoneId.systemDefault() ;  // The JVM's current default time zone.
ZonedDateTime zdtDefault = instant.atZone( zDefault ) ;

ZoneId zTunis = ZoneId.of( "Africa/Tunis" ) ;  // The JVM's current default time zone.
ZonedDateTime zdtTunis = instant.atZone( zTunis ) ;

ZoneId zAuckland = ZoneId.of( "Pacific/Auckland" ) ;  // The JVM's current default time zone.
ZonedDateTime zdtAuckland = instant.atZone( zAuckland ) ;

Going back to UTC from a zoned date-time, call ZonedDateTime::toInstant. Think of it conceptually as: ZonedDateTime = Instant + ZoneId.

Instant instant = zdtAuckland.toInstant() ;

All of these objects, the Instant and the three ZonedDateTime objects all represent the very same simultaneous moment, the same point in history.

Followed 3 different approaches (listed below) but all the 3 approaches retains the time in UTC only.

Forget about trying to fix code using those awful Date, Calendar, and GregorianCalendar classes. They are a wretched mess of bad design and flaws. You need never touch them again. If you must interface with old code not yet updated to java.time, you can convert back-and-forth via new conversion methods added to the old classes.

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, Java SE 10, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android (<26), the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

Turns out the binding of style to a string doesn't work. The solution would be to bind the background of the style.

 <div class="circle" [style.background]="color">

Try below:

try:
    raise ValueError("Original message. ")
except Exception as err:
    message = 'My custom error message. '
    # Change the order below to "(message + str(err),)" if custom message is needed first. 
    err.args = (str(err) + message,)
    raise 

Output:

---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
      1 try:
----> 2     raise ValueError("Original message")
      3 except Exception as err:
      4     message = 'My custom error message.'
      5     err.args = (str(err) + ". " + message,)

ValueError: Original message. My custom error message.

Do you mean how long is the array itself, or how many customerids are in it?

Because the answer to the first question is easy: 5 (or if you don't want to hard-code it, Ben Stott's answer).

But the answer to the other question cannot be automatically determined. Presumably you have allocated an array of length 5, but will initially have 0 customer IDs in there, and will put them in one at a time, and your question is, "how many customer IDs have I put into the array?"

C can't tell you this. You will need to keep a separate variable, int numCustIds (for example). Every time you put a customer ID into the array, increment that variable. Then you can tell how many you have put in.

Try this attribute :

public class NumericAttribute : ValidationAttribute, IClientValidatable {

    public override bool IsValid(object value) {
        return value.ToString().All(c => (c >= '0' && c <= '9') || c == '-' || c == ' ');
    }


    public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) {
        var rule = new ModelClientValidationRule
        {
            ErrorMessage = FormatErrorMessage(metadata.DisplayName),
            ValidationType = "numeric"
        };
        yield return rule;
    }
}

And also you must register the attribute in the validator plugin:

if($.validator){
     $.validator.unobtrusive.adapters.add(
        'numeric', [], function (options) {
            options.rules['numeric'] = options.params;
            options.messages['numeric'] = options.message;
        }
    );
}

Great answer above. Another way is to use the great yaml jq wrapper tool, yq at https://github.com/kislyuk/yq

Save your JSON example to a file, say ex.json and then

yq -y '.' ex.json

AAPL:
- shares: -75.088
  date: 11/27/2015
- shares: 75.088
  date: 11/26/2015

simply click

'Database'>tables>your table name>keys>copy the constraints like 'PK__TableName__30242045'

and run the below query is :

Query:alter Table 'TableName' drop constraint PK__TableName__30242045

This works for me in python 2.7

 select some_date::DATE from some_table;

Use SSL only and instead of encrypting the HTTP_USER_AGENT in the session id and verifying it on every request, just store the HTTP_USER_AGENT string in your session db as well.

Now you only have a simple server based string compare with the ENV'HTTP_USER_AGENT'.

Or you can add a certain variation in your string compare to be more robust against browser version updates. And you could reject certain HTTP_USER_AGENT id's. (empty ones i.e.) Does not resolve the problem completley, but it adds at least a bit more complexity.

Another method could be using more sophisticated browser fingerprinting techniques and combine theyse values with the HTTP_USER_AGENT and send these values from time to time in a separate header values. But than you should encrypt the data in the session id itself.

But that makes it far more complex and raises the CPU usage for decryption on every request.

ALTER TABLE `User`
ADD CONSTRAINT `user_properties_foreign`
FOREIGN KEY (`properties`)
REFERENCES `Properties` (`ID`)
ON DELETE NO ACTION
ON UPDATE NO ACTION;

I have a nice and easy implementation using bootstrap as follows.

<select class="custom-select" id="list" multiple></select>

<div class="dropdown-menu" id="menu-right-click" style=>
    <h6 class="dropdown-header">Actions</h6>
    <a class="dropdown-item" href="" onclick="option1();">Option 1</a>
    <a class="dropdown-item" href="" onclick="option2();">Option 2</a>
</div>

<script>
    $("#menu-right-click").hide();

    $(document).on("contextmenu", "#list", function (e) {
        $("#menu-right-click")
            .css({
                position: 'absolute',
                left: e.pageX,
                top: e.pageY,
                display: 'block'
            })
        return false;
    });

    function option1() {
        // something you want...
        $("#menu-right-click").hide();
    }

    function option2() {
        // something else 
        $("#menu-right-click").hide();
    }
</script>

You can use the parseInt() function to convert the string to a number, e.g:

parseInt($('#elem').css('top'));

Update: (as suggested by Ben): You should give the radix too:

parseInt($('#elem').css('top'), 10);

Forces it to be parsed as a decimal number, otherwise strings beginning with '0' might be parsed as an octal number (might depend on the browser used).

in menu bar click on Edit->preference->advance at bottom click the check box true that is for Show develop menu in menu bar now a develop menu is display at menu bar where you can see all develop option and inspect.

Telerik Fiddler is a good choice

http://www.telerik.com/blogs/using-fiddler-with-apple-ios-devices

I wanted to suppress the prompt that asks if you wish to update links to another workbook when my workbook is manually opened in Excel (as opposed to opening it programmatically via VBA). I tried including: Application.AskToUpdateLinks = False as the first line in my Auto_Open() macro but that didn't work. I discovered however that if you put it instead in the Workbook_Open() function in the ThisWorkbook module, it works brilliantly - the dialog is suppressed but the update still occurs silently in the background.

 Private Sub Workbook_Open()
    ' Suppress dialog & update automatically without asking
    Application.AskToUpdateLinks = False
End Sub

Now there is the pandas_profiling package, which is a more complete alternative to df.describe().

If your pandas dataframe is df, the below will return a complete analysis including some warnings about missing values, skewness, etc. It presents histograms and correlation plots as well.

import pandas_profiling
pandas_profiling.ProfileReport(df)

See the example notebook detailing the usage.

Unfortunately, you're out of luck here.

There is inherit to copy a certain value from a parent to its children, but there is no property the other way round (which would involve another selector to decide which style to revert).

You will have to revert style changes manually:

div { color: green; }

form div { color: red; }

form div div.content { color: green; }

If you have access to the markup, you can add several classes to style precisely what you need:

form div.sub { color: red; }

form div div.content { /* remains green */ }

Edit: The CSS Working Group is up to something:

div.content {
  all: revert;
}

No idea, when or if ever this will be implemented by browsers.

Edit 2: As of March 2015 all modern browsers but Safari and IE/Edge have implemented it: https://twitter.com/LeaVerou/status/577390241763467264 (thanks, @Lea Verou!)

Edit 3: default was renamed to revert.

If running

source ~/.bashrc

results in "No such file or directory"

On windows:

1. Go to c/Users/
2. While holding shift, right-click .bashrc file and select "Copy as path"
3. In bash: source <pasteCopiedPathHere> -> for example: source "C:\Users\John\.bashhrc"

This problem was a plague to me!!! The 100% solution is to forget using the mysql module: import mysql.connector, instead use pymysql via import pymysql. I installed it via the instructions: python3 -m pip install PyMySQL

made a change to the: 1. Import statement 2. The connector 3. The cursor

After that everything worked like a charm. Hope this helps!

Here is a generalized simple command argument interface you can paste to the top of all your scripts.

#!/bin/bash

declare -A flags
declare -A booleans
args=()

while [ "$1" ];
do
    arg=$1
    if [ "${1:0:1}" == "-" ]
    then
      shift
      rev=$(echo "$arg" | rev)
      if [ -z "$1" ] || [ "${1:0:1}" == "-" ] || [ "${rev:0:1}" == ":" ]
      then
        bool=$(echo ${arg:1} | sed s/://g)
        booleans[$bool]=true
        echo \"$bool\" is boolean
      else
        value=$1
        flags[${arg:1}]=$value
        shift
        echo \"$arg\" is flag with value \"$value\"
      fi
    else
      args+=("$arg")
      shift
      echo \"$arg\" is an arg
    fi
done


echo -e "\n"
echo booleans: ${booleans[@]}
echo flags: ${flags[@]}
echo args: ${args[@]}

echo -e "\nBoolean types:\n\tPrecedes Flag(pf): ${booleans[pf]}\n\tFinal Arg(f): ${booleans[f]}\n\tColon Terminated(Ct): ${booleans[Ct]}\n\tNot Mentioned(nm): ${boolean[nm]}"
echo -e "\nFlag: myFlag => ${flags["myFlag"]}"
echo -e "\nArgs: one: ${args[0]}, two: ${args[1]}, three: ${args[2]}"

By running the command:

bashScript.sh firstArg -pf -myFlag "my flag value" secondArg -Ct: thirdArg -f

The output will be this:

"firstArg" is an arg
"pf" is boolean
"-myFlag" is flag with value "my flag value"
"secondArg" is an arg
"Ct" is boolean
"thirdArg" is an arg
"f" is boolean


booleans: true true true
flags: my flag value
args: firstArg secondArg thirdArg

Boolean types:
    Precedes Flag(pf): true
    Final Arg(f): true
    Colon Terminated(Ct): true
    Not Mentioned(nm): 

Flag: myFlag => my flag value

Args: one => firstArg, two => secondArg, three => thirdArg

Basically, the arguments are divided up into flags booleans and generic arguments. By doing it this way a user can put the flags and booleans anywhere as long as he/she keeps the generic arguments (if there are any) in the specified order.

Allowing me and now you to never deal with bash argument parsing again!

You can view an updated script here

This has been enormously useful over the last year. It can now simulate scope by prefixing the variables with a scope parameter.

Just call the script like

replace() (
  source $FUTIL_REL_DIR/commandParser.sh -scope ${FUNCNAME[0]} "$@"
  echo ${replaceFlags[f]}
  echo ${replaceBooleans[b]}
)

Doesn't look like I implemented argument scope, not sure why I guess I haven't needed it yet.

Limelight I really enjoy the theatre metaphor.

You may use MessageBox if you want but it is recommended to use alert (from JavaScript) instead.

If you want to use it you should write:

System.Windows.Forms.MessageBox.Show("Test");   

Note that you must specify the namespace.

I realized that I was iterating over a list of lists where some of them were empty. I fixed this by adding this preprocessing step:

tfidfLsNew = [x for x in tfidfLs if x != []]

the len() of the original was 3105, and the len() of the latter was 3101, implying that four of my lists were completely empty. After this preprocess my max() min() etc. were functioning again.

Please make sure that you are using the same version of jquery-ui 'js' and 'css' files. Sometimes that could be a problem.

C# does have a preprocessor. It works just slightly differently than that of C++ and C.

Here is a MSDN links - the section on all preprocessor directives.

The problem is that you are placing the ListView inside a Column/Row. The text in the exception gives a good explanation of the error.

To avoid the error you need to provide a size to the ListView inside.

I propose you this code that uses an Expanded to inform the horizontal size (maximum available) and the SizedBox (Could be a Container) for the height:

    new Row(
      children: <Widget>[
        Expanded(
          child: SizedBox(
            height: 200.0,
            child: new ListView.builder(
              scrollDirection: Axis.horizontal,
              itemCount: products.length,
              itemBuilder: (BuildContext ctxt, int index) {
                return new Text(products[index]);
              },
            ),
          ),
        ),
        new IconButton(
          icon: Icon(Icons.remove_circle),
          onPressed: () {},
        ),
      ],
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
    )

,

As long as there are no identity columns you can just

INSERT INTO TableNew
SELECT * FROM TableOld
WHERE [Conditions]

Intent sendIntent = new Intent();
sendIntent.setAction(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_TEXT, "This is my text to send.");
sendIntent.setType("text/plain");

Intent shareIntent = Intent.createChooser(sendIntent, null);
startActivity(shareIntent);

You can use tool I've created specifically for this task:

https://github.com/sheerun/git-squash

Basically you need to call git squash master and you're done

Try:

$("#"+styleTarget).css({ 'font-size': $(this).val() });

By putting the value in quotes, it becomes a string, and "+$(this).val()+"px is definitely not close to a font value. There are a couple of ways of setting the style properties of an element:

Using a map:

$("#elem").css({
    fontSize: 20
});

Using key and value parameters:

All of these are valid.

$("#elem").css("fontSize", 20);
$("#elem").css("fontSize", "20px");
$("#elem").css("font-size", "20");
$("#elem").css("font-size", "20px");

You can replace "fontSize" with "font-size" but it will have to be quoted then.

One can create an empty array, fill it (otherwise map will skip it) and then map indexes to values:

Array(8).fill().map((_, i) => i * i);

You can't use variable names to bind columns or other system objects, you need dynamic sql

DECLARE @value varchar(10)  
SET @value = 'intStep'  
DECLARE @sqlText nvarchar(1000); 

SET @sqlText = N'SELECT ' + @value + ' FROM dbo.tblBatchDetail'
Exec (@sqlText)

Create a PowerShell script with the following code in the file.

param([string]$path)
Get-ChildItem $path | Where-Object {$_.LinkType -eq 'SymbolicLink'} | select name, target

This creates a script with a path parameter. It will list all symbolic links within the path provided as well as the specified target of the symbolic link.

You can use np.concatenate() specifying which axis to append, using np.newaxis:

import numpy as np
movie = np.concatenate((img1[:,np.newaxis], img2[:,np.newaxis]), axis=3)

If you are reading from many files:

import glob
movie = np.concatenate([cv2.imread(p)[:,np.newaxis] for p in glob.glob('*.jpg')], axis=3)

From the Testivus posting I think the answer context should be the second programmer. Having said this from a practical point of view we need parameter / goals to strive for. I consider that this can be "tested" in an Agile process by analyzing the code we have the architecture, functionality (user stories), and then come up with a number. Based on my experience in the Telecom area I would say that 60% is a good value to check.

Very easy, just use the SQLCMD-syntax.

Remember to enable SQLCMD-mode in the SSMS, look under Query -> SQLCMD Mode

Try execute:

!!DIR
!!:GO

or maybe:
!!DIR "c:/temp"
!!:GO

I think using defer from lodash makes a lot of sense especially in my case where my @ViewChild() was inside async pipe

In cases where you want to remove something that is close to the end of a string (in case of variable sized strings) you can combine slice() and substr().

I had a string with markup, dynamically built, with a list of anchor tags separated by comma. The string was something like:

var str = "<a>text 1,</a><a>text 2,</a><a>text 2.3,</a><a>text abc,</a>";

To remove the last comma I did the following:

str = str.slice(0, -5) + str.substr(-4);

I tried to use the Given solutions, the Chosen one was an overkill for my purpose and "Creating a element" one messes up for me.

It's not ready for Port in URL yet. I hope someone finds it useful

function parseURL(url){
    parsed_url = {}

    if ( url == null || url.length == 0 )
        return parsed_url;

    protocol_i = url.indexOf('://');
    parsed_url.protocol = url.substr(0,protocol_i);

    remaining_url = url.substr(protocol_i + 3, url.length);
    domain_i = remaining_url.indexOf('/');
    domain_i = domain_i == -1 ? remaining_url.length - 1 : domain_i;
    parsed_url.domain = remaining_url.substr(0, domain_i);
    parsed_url.path = domain_i == -1 || domain_i + 1 == remaining_url.length ? null : remaining_url.substr(domain_i + 1, remaining_url.length);

    domain_parts = parsed_url.domain.split('.');
    switch ( domain_parts.length ){
        case 2:
          parsed_url.subdomain = null;
          parsed_url.host = domain_parts[0];
          parsed_url.tld = domain_parts[1];
          break;
        case 3:
          parsed_url.subdomain = domain_parts[0];
          parsed_url.host = domain_parts[1];
          parsed_url.tld = domain_parts[2];
          break;
        case 4:
          parsed_url.subdomain = domain_parts[0];
          parsed_url.host = domain_parts[1];
          parsed_url.tld = domain_parts[2] + '.' + domain_parts[3];
          break;
    }

    parsed_url.parent_domain = parsed_url.host + '.' + parsed_url.tld;

    return parsed_url;
}

Running this:

parseURL('https://www.facebook.com/100003379429021_356001651189146');

Result:

Object {
    domain : "www.facebook.com",
    host : "facebook",
    path : "100003379429021_356001651189146",
    protocol : "https",
    subdomain : "www",
    tld : "com"
}

In my case I use this

  var key=dict.FirstOrDefault(m => m.Value == s).Key;
            dict.Remove(key);

I know the OP is asking for SQL 2005 answer but the question is pretty old so if you're running SQL 2012 or above you can use the following:

SELECT DATEADD(DAY, 1, EOMONTH(@somedate, -1))

Reference: https://docs.microsoft.com/en-us/sql/t-sql/functions/eomonth-transact-sql?view=sql-server-2017&viewFallbackFrom=sql-server-previousversions

Just supply the IP / hostname of the remote machine in your database connection string, instead of localhost. For example:

jdbc:mysql://192.168.15.25:3306/yourdatabase

Make sure there is no firewall blocking the access to port 3306

Also, make sure the user you are connecting with is allowed to connect from this particular hostname. For development environments it is safe to do this by 'username'@'%'. Check the user creation manual and the GRANT manual.

ssh user@machine python < script.py - arg1 arg2

Because cat | is usually not necessary

Use jquery to add a style override in the <head>:

$('<style>.someClass {color: red;} input::-webkit-outer-spin-button: {display: none;}</style>')
.appendTo('head'); 

Would a View work better in this case?

CREATE VIEW vwTable
as  
SELECT  
    col1  
    , col2  
    , col3  
    , col..  
    , col53  
FROM table

You can also use unionBy for 4.0.0 and later, as follows: let uniques = _.unionBy(data, 'id')

It's actually quite easy, assuming you have an openssl installation handy. (What platform are you on?)

Assuming you're on linux/solaris/mac os/x, Van's Apache SSL/TLS mini-HOWTO has an excellent walkthrough that I won't reproduce here.

However, the executive summary is that you have to create a self-signed certificate. Since you're running apache for localhost presumably for development (i.e. not a public web server), you'll know that you can trust the self-signed certificate and can ignore the warnings that your browser will throw at you.

Add the below to your manifest:

  <activity   android:name=".AppPreferenceActivity" android:label="@string/app_name">  
     <intent-filter> 
       <action android:name="com.scytec.datamobile.vd.gui.android.AppPreferenceActivity" />  
       <category android:name="android.intent.category.DEFAULT" />  
     </intent-filter>   
  </activity>

This is a full example based on the other answers and comments to the question. In the example the timestamp (created_at-column) is saved as unix epoch UTC timezone and converted to local timezone only when necessary.

Using unix epoch saves storage space - 4 bytes integer vs. 24 bytes string when stored as ISO8601 string, see datatypes. If 4 bytes is not enough that can be increased to 6 or 8 bytes.

Saving timestamp on UTC timezone makes it convenient to show a reasonable value on multiple timezones.

SQLite version is 3.8.6 that ships with Ubuntu LTS 14.04.

$ sqlite3 so.db
SQLite version 3.8.6 2014-08-15 11:46:33
Enter ".help" for usage hints.
sqlite> .headers on

create table if not exists example (
   id integer primary key autoincrement
  ,data text not null unique
  ,created_at integer(4) not null default (strftime('%s','now'))
);

insert into example(data) values
 ('foo')
,('bar')
;

select
 id
,data
,created_at as epoch
,datetime(created_at, 'unixepoch') as utc
,datetime(created_at, 'unixepoch', 'localtime') as localtime
from example
order by id
;

id|data|epoch     |utc                |localtime
1 |foo |1412097842|2014-09-30 17:24:02|2014-09-30 20:24:02
2 |bar |1412097842|2014-09-30 17:24:02|2014-09-30 20:24:02

Localtime is correct as I'm located at UTC+2 DST at the moment of the query.

When you use recv in connection with select if the socket is ready to be read from but there is no data to read that means the client has closed the connection.

Here is some code that handles this, also note the exception that is thrown when recv is called a second time in the while loop. If there is nothing left to read this exception will be thrown it doesn't mean the client has closed the connection :

def listenToSockets(self):

    while True:

        changed_sockets = self.currentSockets

        ready_to_read, ready_to_write, in_error = select.select(changed_sockets, [], [], 0.1)

        for s in ready_to_read:

            if s == self.serverSocket:
                self.acceptNewConnection(s)
            else:
                self.readDataFromSocket(s)

And the function that receives the data :

def readDataFromSocket(self, socket):

    data = ''
    buffer = ''
    try:

        while True:
            data = socket.recv(4096)

            if not data: 
                break

            buffer += data

    except error, (errorCode,message): 
        # error 10035 is no data available, it is non-fatal
        if errorCode != 10035:
            print 'socket.error - ('+str(errorCode)+') ' + message


    if data:
        print 'received '+ buffer
    else:
        print 'disconnected'

You can compare datetime.datetime objects directly

E.g:

>>> a
datetime.datetime(2009, 12, 2, 10, 24, 34, 198130)
>>> b
datetime.datetime(2009, 12, 2, 10, 24, 36, 910128)
>>> a < b
True
>>> a > b
False
>>> a == a
True
>>> b == b
True
>>> 

Add this to your <head>:

<style type="text/css">
    textarea { border: none; }
</style>

Or do it directly on the textarea:

<textarea style="border: none"></textarea>

If you're into libraries, why not MyLibrary and getStyle.

The jQuery css method is misnamed, CSS is just one way of setting styles and doesn't necessarily represent the actual values of an element's style properties.

As a reference it might help someone... On Debian system I hard to do the following:

apt-get install -y libsm6 libxext6 libxrender-dev
pip3 install opencv-python
python3 -c "import cv2"

The answer from Tanoh could use some clarification. VersionCode is the equivalent of a build number. So typically an app will go through many iterations before release. Some of these iterations may make it to the Google Play store in the form of alpha, beta, and actual releases. Each successive iteration must have an incremented versionCode. However, typically you only increase the versionName when between public releases. Both numbers are significant. Your users need to know if the version they have on their phone is the latest or not (versionName) and the Play Store and CI systems such as bitrise rely on and/or update the build number (versionCode)

Thanks for the discussion, this method also works (VB):

Public Function StringCentering(ByVal s As String, ByVal desiredLength As Integer) As String
    If s.Length >= desiredLength Then Return s
    Dim firstpad As Integer = (s.Length + desiredLength) / 2
    Return s.PadLeft(firstpad).PadRight(desiredLength)
End Function

1. StringCentering() takes two input values and it returns a formatted string.
2. When length of s is greater than or equal to deisredLength, the function returns the original string.
3. When length of s is smaller than desiredLength, it will be padded both ends.
4. Due to character spacing is integer and there is no half-space, we can have an uneven split of space. In this implementation, the greater split goes to the leading end.
5. The function requires .NET Framework due to PadLeft() and PadRight().
6. In the last line of the function, binding is from left to right, so firstpad is applied followed by the desiredLength pad.

Here is the C# version:

public string StringCentering(string s, int desiredLength)
{
    if (s.Length >= desiredLength) return s;
    int firstpad = (s.Length + desiredLength) / 2;
    return s.PadLeft(firstpad).PadRight(desiredLength);
}

To aid understanding, integer variable firstpad is used. s.PadLeft(firstpad) applies the (correct number of) leading white spaces. The right-most PadRight(desiredLength) has a lower binding finishes off by applying trailing white spaces.

I always use the return value to pass back error status. If you need to pass back one value I'd use an output parameter.

sample stored procedure, with an OUTPUT parameter:

CREATE PROCEDURE YourStoredProcedure 
(
    @Param1    int
   ,@Param2    varchar(5)
   ,@Param3    datetime OUTPUT
)
AS
IF ISNULL(@Param1,0)>5
BEGIN
    SET @Param3=GETDATE()
END
ELSE
BEGIN
    SET @Param3='1/1/2010'
END
RETURN 0
GO

call to the stored procedure, with an OUTPUT parameter:

DECLARE @OutputParameter  datetime
       ,@ReturnValue      int

EXEC @ReturnValue=YourStoredProcedure 1,null, @OutputParameter OUTPUT
PRINT @ReturnValue
PRINT CONVERT(char(23),@OutputParameter ,121)

OUTPUT:

0
2010-01-01 00:00:00.000

transition-property:width;

This should work. you have to have browser dependent code

Yes. Using the JsonConvert class which contains helper methods for this precise purpose:

// To convert an XML node contained in string xml into a JSON string   
XmlDocument doc = new XmlDocument();
doc.LoadXml(xml);
string jsonText = JsonConvert.SerializeXmlNode(doc);

// To convert JSON text contained in string json into an XML node
XmlDocument doc = JsonConvert.DeserializeXmlNode(json);

Documentation here: Converting between JSON and XML with Json.NET

padding-left is what controls the indentation of ul not margin-left.

Compare: Here's setting padding-left to 0, notice all the indentation disappears.

ul {
  padding-left: 0;
}

<ul>
  <li>section a
    <ul>
      <li>one</li>
      <li>two</li>
      <li>three</li>
    </ul>
  </li>
</ul>
<ul>
  <li>section b
    <ul>
      <li>one</li>
      <li>two</li>
      <li>three</li>
    </ul>
  </li>
</ul>

and here's setting margin-left to 0px. Notice the indentation does NOT change.

ul {
  margin-left: 0;
}

<ul>
  <li>section a
    <ul>
      <li>one</li>
      <li>two</li>
      <li>three</li>
    </ul>
  </li>
</ul>
<ul>
  <li>section b
    <ul>
      <li>one</li>
      <li>two</li>
      <li>three</li>
    </ul>
  </li>
</ul>

The first improvement would be to simplify the three cases in the main loop: Rather than iterating while some of the sequence has elements, iterate while both sequences have elements. When leaving the loop, one of them will be empty, we don't know which, but we don't care: We append them at the end of the result.

def msort2(x):
    if len(x) < 2:
        return x
    result = []          # moved!
    mid = int(len(x) / 2)
    y = msort2(x[:mid])
    z = msort2(x[mid:])
    while (len(y) > 0) and (len(z) > 0):
        if y[0] > z[0]:
            result.append(z[0])
            z.pop(0)
        else:
            result.append(y[0])
            y.pop(0)
    result += y
    result += z
    return result

The second optimization is to avoid popping the elements. Rather, have two indices:

def msort3(x):
    if len(x) < 2:
        return x
    result = []
    mid = int(len(x) / 2)
    y = msort3(x[:mid])
    z = msort3(x[mid:])
    i = 0
    j = 0
    while i < len(y) and j < len(z):
        if y[i] > z[j]:
            result.append(z[j])
            j += 1
        else:
            result.append(y[i])
            i += 1
    result += y[i:]
    result += z[j:]
    return result

A final improvement consists in using a non recursive algorithm to sort short sequences. In this case I use the built-in sorted function and use it when the size of the input is less than 20:

def msort4(x):
    if len(x) < 20:
        return sorted(x)
    result = []
    mid = int(len(x) / 2)
    y = msort4(x[:mid])
    z = msort4(x[mid:])
    i = 0
    j = 0
    while i < len(y) and j < len(z):
        if y[i] > z[j]:
            result.append(z[j])
            j += 1
        else:
            result.append(y[i])
            i += 1
    result += y[i:]
    result += z[j:]
    return result

My measurements to sort a random list of 100000 integers are 2.46 seconds for the original version, 2.33 for msort2, 0.60 for msort3 and 0.40 for msort4. For reference, sorting all the list with sorted takes 0.03 seconds.

I recently had this problem myself, and once I determined which AppPool was causing the problem, the only way to resolve the issue was remove that app pool completly and create a new one for the site to use.

I found myself here after needing this same query for some Business Intelligence Queries I'm running on an e-commerce store. I wanted to add my solution as it may be helpful to others.

set @firstOfLastLastMonth = DATE_SUB(LAST_DAY(DATE_ADD(NOW(), INTERVAL -2 MONTH)),INTERVAL DAY(LAST_DAY(DATE_ADD(NOW(), INTERVAL -2 MONTH)))-1 DAY);
set @lastOfLastLastMonth = LAST_DAY(DATE_ADD(NOW(), INTERVAL -2 MONTH));
set @firstOfLastMonth = DATE_SUB(LAST_DAY(DATE_ADD(NOW(), INTERVAL -1 MONTH)),INTERVAL DAY(LAST_DAY(DATE_ADD(NOW(), INTERVAL -1 MONTH)))-1 DAY);
set @lastOfLastMonth = LAST_DAY(DATE_ADD(NOW(), INTERVAL -1 MONTH));
set @firstOfMonth = DATE_ADD(@lastOfLastMonth, INTERVAL 1 DAY);
set @today = CURRENT_DATE;

Today is 2019-10-08 so the output looks like

@firstOfLastLastMonth = '2019-08-01'
@lastOfLastLastMonth = '2019-08-31'
@firstOfLastMonth = '2019-09-01'
@lastOfLastMonth = '2019-09-30'
@firstOfMonth = '2019-10-01'
@today = '2019-10-08'

You can also use this:

ALTER TABLE [tablename] CHANGE [columnName] [columnName] DECIMAL (10,2)

The way you are performing the injection of the property will not work, because the injection is done after the constructor is called.

You need to do one of the following:

Better solution

@Component
public class MyBean {

    private final String prop;

    @Autowired
    public MyBean(@Value("${some.prop}") String prop) {
        this.prop = prop;
        System.out.println("================== " + prop + "================== ");
    }
}

Solution that will work but is less testable and slightly less readable

@Component
public class MyBean {

    @Value("${some.prop}")
    private String prop;

    public MyBean() {

    }

    @PostConstruct
    public void init() {
        System.out.println("================== " + prop + "================== ");
    }
}

Also note that is not Spring Boot specific but applies to any Spring application

If you don't create the DOM yourself (e.g. in a userscript) you can do the following with pure JS:

for ( td of document.querySelectorAll('td') ) {_x000D_
  console.debug("text:", td, td.innerText)_x000D_
  td.setAttribute('text', td.innerText)_x000D_
}_x000D_
for ( td of document.querySelectorAll('td[text="male"]') )_x000D_
  console.debug("male:", td, td.innerText)

<table>_x000D_
  <tr>_x000D_
    <td>Peter</td>_x000D_
    <td>male</td>_x000D_
    <td>34</td>_x000D_
  </tr>_x000D_
  <tr>_x000D_
    <td>Susanne</td>_x000D_
    <td>female</td>_x000D_
    <td>12</td>_x000D_
  </tr>_x000D_
</table>

Console output

text: <td> Peter
text: <td> male
text: <td> 34
text: <td> Susanne
text: <td> female
text: <td> 12
male: <td text="male"> male

You can use this to delete ALL Files Inside a Folder and Subfolders:

DEL "C:\Folder\*.*" /S /Q

Or use this to Delete Certain File Types Only:

DEL "C:\Folder\*.mp4" /S /Q 
DEL "C:\Folder\*.dat" /S /Q 

Fact 1: Projects and Repositories were always synonyms on GitHub.

Fact 2: This is no longer the case.

There is a lot of confusion about Repositories and Projects. In the past both terms were used pretty much interchangeably by the users and the GitHub's very own documentation. This is reflected by some of the answers and comments here that explain the subtle differences between those terms and when the one was preferred over the other. The difference were always subtle, e.g. like the issue tracker being part of the project but not part of the repository which might be thought of as a strictly git thing etc.

Not any more.

Currently repos and projects refer to a different kinds of entities that have separate APIs:

• https://developer.github.com/v3/repos/
• https://developer.github.com/v3/projects/

Since then it is no longer correct to call the repo a project or vice versa. Note that it is often confused in the official documentation and it is unfortunate that a term that was already widely used has been chosen as the name of the new entity but this is the case and we have to live with that.

The consequence is that repos and projects are usually confused and every time you read about GitHub projects you have to wonder if it's really about the projects or about repos. Had they chosen some other name or an abbreviation like "proj" then we could know that what is discussed is the new type of entity, a precise object with concrete properties, or a general speaking repo-like projectish kind of thingy.

The term that is usually unambiguous is "project board".

What can we learn from the API

The first endpoint in the documentation of the Projects API:

• https://developer.github.com/v3/projects/#list-repository-projects

is described as: List repository projects. It means that a repository can have many projects. So those two cannot mean the same thing. It includes Response if projects are disabled:

{
  "message": "Projects are disabled for this repo",
  "documentation_url": "https://developer.github.com/v3"
}

which means that some repos can have projects disabled. Again, those cannot be the same thing when a repo can have projects disabled.

There are some other interesting endpoints:

• Create a repository project - POST /repos/:owner/:repo/projects
• Create an organization project - POST /orgs/:org/projects

but there is no:

• Create a user's project - POST /users/:user/projects

Which leads us to another difference:

1. Repositories can belong to users or organizations
2. Projects can belong to repositories or organizations

or, more importantly:

1. Projects can belong to repositories but not the other way around
2. Projects can belong to organizations but not to users
3. Repositories can belong to organizations and to users

See also:

• https://help.github.com/articles/about-project-boards/

I know it's confusing. I tried to explain it as precisely as I could.

If you have an ID column and you want to find most repetitive category from another column for each ID then you can use below query,

Table:

Query:

SELECT ID, CATEGORY, COUNT(*) AS FREQ
FROM TABLE
GROUP BY 1,2
QUALIFY ROW_NUMBER() OVER(PARTITION BY ID ORDER BY FREQ DESC) = 1;

Result:

It's not possible in ggplot2 because I believe plots with separate y scales (not y-scales that are transformations of each other) are fundamentally flawed. Some problems:

• The are not invertible: given a point on the plot space, you can not uniquely map it back to a point in the data space.

• They are relatively hard to read correctly compared to other options. See A Study on Dual-Scale Data Charts by Petra Isenberg, Anastasia Bezerianos, Pierre Dragicevic, and Jean-Daniel Fekete for details.

• They are easily manipulated to mislead: there is no unique way to specify the relative scales of the axes, leaving them open to manipulation. Two examples from the Junkcharts blog: one, two

• They are arbitrary: why have only 2 scales, not 3, 4 or ten?

You also might want to read Stephen Few's lengthy discussion on the topic Dual-Scaled Axes in Graphs Are They Ever the Best Solution?.

You're probably trying to to update the same row of the target table multiple times. I just encountered the very same problem in a merge statement I developed. Make sure your update does not touch the same record more than once in the execution of the merge.

Is there a preformance difference in Javascript between a switch statement and an if...else if....else?

I don't think so, switch is useful/short if you want prevent multiple if-else conditions.

Is the behavior of switch and if...else if...else different across browsers? (FireFox, IE, Chrome, Opera, Safari)

Behavior is same across all browsers :)

Add this to your web config and change the catalog name which is your database name:

  <connectionStrings>
    <add name="MyConnectionString" connectionString="Data Source=SERGIO-DESKTOP\SQLEXPRESS;Initial Catalog=YourDatabaseName;Integrated Security=True;"/></connectionStrings>

Reference System.Configuration assembly in your project.

Here is how you retrieve connection string from the config file:

System.Configuration.ConfigurationManager.ConnectionStrings["MyConnectionString"].ConnectionString;

Add this code into the css file:

input {
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
}

This will help.

After "AND" and after "OR" the QUERY has forgotten what it is all about.

I would also not know that it is about in any SQL / programming language.

if(SOMETHING equals "X" or SOMETHING equals "Y")

COLUMN NOT LIKE "A%" AND COLUMN NOT LIKE "B%"

As stats on iOS usage, indicating that iOS 9.0-9.2.x usage is currently at 0.17%. If these numbers are truly indicative of global use of these versions, then it’s even more likely to be safe to remove shrink-to-fit from your viewport meta tag.

After 9.2.x. IOS remove this tag check on its' browser.

You can check this page https://www.scottohara.me/blog/2018/12/11/shrink-to-fit.html

In swift 3:

var a: Double = 1.5
var b: String = String(a)

If a class, or anything derived from it, might hold the last live reference to an object with a finalizer, then either GC.SuppressFinalize(this) or GC.KeepAlive(this) should be called on the object after any operation that might be adversely affected by that finalizer, thus ensuring that the finalizer won't run until after that operation is complete.

The cost of GC.KeepAlive() and GC.SuppressFinalize(this) are essentially the same in any class that doesn't have a finalizer, and classes that do have finalizers should generally call GC.SuppressFinalize(this), so using the latter function as the last step of Dispose() may not always be necessary, but it won't be wrong.

Sqliteopenhelper's method have methods create and upgrade,create is used when any table is first time created and upgrade method will called everytime whenever table's number of column is changed.

When creating a layout, it's easier to work with one control at a time, instead of adding them all at once.

From the Layouts Palette, drag a ConstraintLayout to the screen.

Move your desired controls inside the ConstraintLayout.

So the ConstraintLayout will now be the control's parents, and if you switch to the xml code, the controls will be nested under the ConstraintLayout.

Right click on your control, select Constraint from the menu, and select how you want to align it to the parent ConstraintLayout, top, start, etc.

If you need to align two controls relative to each other, select both controls at the same time with the Ctrl key, then right click to open the constrain menu.

More info: https://developer.android.com/training/constraint-layout

You can specify the constraint separation distance in the Constraint Layout tab:

I used the below code to redirect to new page

$window.location.href = '/foldername/page.html';

and injected $window object in my controller function.

The problem with me is that I have so many different versions of python, so it opens up a different python3.7 even after I did brew link. I did the following additional steps to make it default after linking

First, open up the document setting up the path of python

 nano ~/.bash_profile

Then something like this shows up:

# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.7/bin:${PATH}"
export PATH

# Setting PATH for Python 3.6
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}"
export PATH

The thing here is that my Python for brew framework is not in the Library Folder!! So I changed the framework for python 3.7, which looks like follows in my system

# Setting PATH for Python 3.7
# The original version is saved in .bash_profile.pysave
PATH="/usr/local/Frameworks/Python.framework/Versions/3.7/bin:${PATH}"
export PATH

Change and save the file. Restart the computer, and typing in python3.7, I get the python I installed for brew.

Not sure if my case is applicable to everyone, but worth a try. Not sure if the framework path is the same for everyone, please made sure before trying out.

You can use this code:

int count;
            try {
                URL url = new URL(f_url[0]);
                URLConnection conection = url.openConnection();
                conection.setConnectTimeout(TIME_OUT);
                conection.connect();
                // Getting file length
                int lenghtOfFile = conection.getContentLength();
                // Create a Input stream to read file - with 8k buffer
                InputStream input = new BufferedInputStream(url.openStream(),
                        8192);
                // Output stream to write file
                OutputStream output = new FileOutputStream(
                        "/sdcard/9androidnet.jpg");

                byte data[] = new byte[1024];
                long total = 0;
                while ((count = input.read(data)) != -1) {
                    total += count;
                    // publishing the progress....
                    // After this onProgressUpdate will be called
                    publishProgress("" + (int) ((total * 100) / lenghtOfFile));
                    // writing data to file
                    output.write(data, 0, count);
                }
                // flushing output
                output.flush();
                // closing streams
                output.close();
                input.close();
            } catch (SocketTimeoutException e) {
                connectionTimeout=true;
            } catch (Exception e) {
                Log.e("Error: ", e.getMessage());
            }

I suggest you using bootstrap which works perfectly:

@import url('http://getbootstrap.com/dist/css/bootstrap.css');_x000D_
 html, body, .container-table {_x000D_
    height: 100%;_x000D_
}_x000D_
.container-table {_x000D_
    display: table;_x000D_
}_x000D_
.vertical-center-row {_x000D_
    display: table-cell;_x000D_
    vertical-align: middle;_x000D_
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">_x000D_
<html xmlns="http://www.w3.org/1999/xhtml">_x000D_
<head>_x000D_
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0" />_x000D_
<title>Login Page | ... </title>_x000D_
_x000D_
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
_x000D_
 <div class="container container-table">_x000D_
  <div class="row vertical-center-row">_x000D_
   <div class="text-center col-md-4 col-md-offset-4" style="">_x000D_
      <form id="login" action="dashboard.html" method="post">_x000D_
     _x000D_
     <div class="username">_x000D_
      <div class="usernameinner">_x000D_
       <input type="text" name="username" id="username" placeholder="Login" />_x000D_
      </div>_x000D_
     </div>_x000D_
     _x000D_
     <div class="password">_x000D_
      <div class="passwordinner">_x000D_
       <input type="password" name="password" id="password" placeholder="Mot de passe" />_x000D_
      </div>_x000D_
     </div>_x000D_
     _x000D_
     <button id="login-button">Connexion</button>_x000D_
     _x000D_
     <div class="keep"><input type="checkbox" /> Gardez moi connecté</div>_x000D_
    _x000D_
    </form>_x000D_
   </div>_x000D_
  </div>_x000D_
 </div>_x000D_
</body>_x000D_
</html>

If its over SSH, you can use the following:

For a higher debug level for type -vv or -vvv for debug level 2 and 3 respectively:

# Debug level 1
GIT_SSH_COMMAND="ssh -v" git clone <repositoryurl>

# Debug level 2
GIT_SSH_COMMAND="ssh -vv" git clone <repositoryurl>

# Debug level 3
GIT_SSH_COMMAND="ssh -vvv" git clone <repositoryurl>

This is mainly useful to handle public and private key problems with the server. You can use this command for any git command, not only 'git clone'.

I am using Python 3.6 and using a comma between Exception and e does not work. I need to use the following syntax (just for anyone wondering)

try:
    connection = manager.connect("I2Cx")
except KeyError as e:
    print(e.message)

Simple,

1: I don't want to fiddle around with codes (ps my site builder doesn't use codes, it uses "upload file" button and it does it itself)

2: I tried the CTRL+F5 and it doesn't work for me so....

I HAVE A SOLUTION:

IE: Clear All browser history and cookies by going to the settings cog O

Chrome: Go to the menu in the top right corner below the X that looks like a = , then go to settings, history, CLEAR BROWSING DATA and check all of the boxes that apply (I did history, cookies and empty the catche from the beginning of time)

You can sort the dataFrame by count and then remove duplicates. I think it's easier:

df.sort_values('count', ascending=False).drop_duplicates(['Sp','Mt'])

You can use the following to capitalize words in a string:

function capitalizeAll(str){

    var partes = str.split(' ');

    var nuevoStr = ""; 

    for(i=0; i<partes.length; i++){
    nuevoStr += " "+partes[i].toLowerCase().replace(/\b\w/g, l => l.toUpperCase()).trim(); 
    }    

    return nuevoStr;

}

import UIKit

class ViewController: UIViewController {

    let eggTimes = ["Soft": 300, "Medium": 420, "Hard": 720]
    
    var secondsRemaining = 60

    @IBAction func hardnessSelected(_ sender: UIButton) {
        let hardness = sender.currentTitle!

        secondsRemaining = eggTimes[hardness]!

        Timer.scheduledTimer(timeInterval: 1.0, target: self, selector:
            #selector(UIMenuController.update), userInfo: nil, repeats: true)
    }
    @objc func countDown() {
         if secondsRemaining > 0 {
             print("\(secondsRemaining) seconds.")
            secondsRemaining -= 1
        
         }
    }
}

From performance point of view if two lists contain number of elements that differ significantly, you can try such approach (using conditional operator ?:):

1.First you need to declare a converter:

Converter<string, int> del = delegate(string s) { return Int32.Parse(s); };

2.Then you use a conditional operator:

var r = data1.Count > data2.Count ?
 data2.ConvertAll<int>(del).Intersect(data1) :
 data1.Select(v => v.ToString()).Intersect(data2).ToList<string>().ConvertAll<int>(del);

You convert elements of shorter list to match the type of longer list. Imagine an execution speed if your first set contains 1000 elements and second only 10 (or opposite as it doesn't matter) ;-)

As you want to have a result as List, in a last line you convert the result (only result) back to int.

It's shorthand for tags.map(&:name.to_proc).join(' ')

If foo is an object with a to_proc method, then you can pass it to a method as &foo, which will call foo.to_proc and use that as the method's block.

The Symbol#to_proc method was originally added by ActiveSupport but has been integrated into Ruby 1.8.7. This is its implementation:

class Symbol
  def to_proc
    Proc.new do |obj, *args|
      obj.send self, *args
    end
  end
end

Use the property TextWrapping of the TextBlock element:

<TextBlock Text="StackOverflow Forum"
           Width="100"
           TextWrapping="WrapWithOverflow"/>

This is a peculiar question because it's not supposed to be a matter of choice.

When you launch the JVM, you specify a class to run, and it is the main() of this class where your program starts.

By init(), I assume you mean the JApplet method. When an applet is launched in the browser, the init() method of the specified applet is executed as the first order of business.

By run(), I assume you mean the method of Runnable. This is the method invoked when a new thread is started.

• main: program start
• init: applet start
• run: thread start

If Eclipse is running your run() method even though you have no main(), then it is doing something peculiar and non-standard, but not infeasible. Perhaps you should post a sample class that you've been running this way.

This should help you..:

import java.io.*;
import static java.lang.System.*;
/**
* Write a description of class InRead here.
* 
* @author (your name) 
* @version (a version number or a date)
*/
public class InRead
{
public InRead(String Recipe)
{
    find(Recipe);
}
public void find(String Name){
    String newRecipe= Name+".txt";
    try{
        FileReader fr= new FileReader(newRecipe);
        BufferedReader br= new BufferedReader(fr);

        String str;


    while ((str=br.readLine()) != null){
            out.println(str + "\n");
        }
        br.close();

    }catch (IOException e){
        out.println("File Not Found!");
    }
}

}

The ALL_DIRECTORIES data dictionary view will have information about all the directories that you have access to. That includes the operating system path

SELECT owner, directory_name, directory_path
  FROM all_directories

Best way to locate anchor elements is to use link=Re-Call:

selenium.click("link=Re-Call");

It will work..

Your shell (/bin/sh) is trying to find 'pushd'. But it can't find it because 'pushd','popd' and other commands like that are build in bash.

Launch you script using Bash (/bin/bash) instead of Sh like you are doing now, and it will work

This is a small program to get different color on terminal.

#include <stdio.h>

#define KNRM  "\x1B[0m"
#define KRED  "\x1B[31m"
#define KGRN  "\x1B[32m"
#define KYEL  "\x1B[33m"
#define KBLU  "\x1B[34m"
#define KMAG  "\x1B[35m"
#define KCYN  "\x1B[36m"
#define KWHT  "\x1B[37m"

int main()
{
    printf("%sred\n", KRED);
    printf("%sgreen\n", KGRN);
    printf("%syellow\n", KYEL);
    printf("%sblue\n", KBLU);
    printf("%smagenta\n", KMAG);
    printf("%scyan\n", KCYN);
    printf("%swhite\n", KWHT);
    printf("%snormal\n", KNRM);

    return 0;
}

I'd suggest using git rebase -i; move the commit you want to push to the top of the commits you've made. Then use git log to get the SHA of the rebased commit, check it out, and push it. The rebase will have ensures that all your other commits are now children of the one you pushed, so future pushes will work fine too.

You may try using ellipsis by adding the following in CSS:

.truncate {
  width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

But it seems like this code just applies to one-line trim. More ways to trim text and show ellipsis can be found in this website: http://blog.sanuker.com/?p=631

Just ran into this again (certain I had before and came up with a less-than-satisfying solution).

For a tri-state boolean semantic (for example, using models.NullBooleanField), this works well:

{% if test.passed|lower == 'false' %} ... {% endif %}

Or if you prefer getting excited over the whole thing...

{% if test.passed|upper == 'FALSE' %} ... {% endif %}

Either way, this handles the special condition where you don't care about the None (evaluating to False in the if block) or True case.

you may use operator . $array3 = $array1.$array2;

Replace void *disconnectFunc; with void (*disconnectFunc)(); to declare function pointer type variable. Or even better use a typedef:

typedef void (*func_t)(); // pointer to function with no args and void return
...
func_t fptr; // variable of pointer to function
...
void D::setDisconnectFunc( func_t func )
{
    fptr = func;
}

void D::disconnected()
{
    fptr();
    connected = false;
}

The main question for me would be, what are you actually trying to find out? Are you trying to find out, when a certain set of changes was introduced in that file?

You can use git blame for this, it will anotate each line with a SHA1 and a date when it was changed. git blame can also tell you when a certain line was deleted or where it was moved if you are interested in that.

If you are trying to find out, when a certain bug was introduced, git bisect is a very powerfull tool. git bisect will do a binary search on your history. You can use git bisect start to start bisecting, then git bisect bad to mark a commit where the bug is present and git bisect good to mark a commit which does not have the bug. git will checkout a commit between the two and ask you if it is good or bad. You can usually find the faulty commit within a few steps.

Since I have used git, I hardly ever found the need to manually look through patch histories to find something, since most often git offers me a way to actually look for the information I need.

If you try to think less of how to do a certain workflow, but more in what information you need, you will probably many workflows which (in my opinion) are much more simple and faster.

You can user pagination of Instagram PHP API: https://github.com/cosenary/Instagram-PHP-API/wiki/Using-Pagination

Something like that:

    $Instagram = new MetzWeb\Instagram\Instagram(array(
        "apiKey"      => IG_APP_KEY,
        "apiSecret"   => IG_APP_SECRET,
        "apiCallback" => IG_APP_CALLBACK
    ));
    $Instagram->setSignedHeader(true);

    $pictures = $Instagram->getUserMedia(123);
    do {

        foreach ($pictures->data as $picture_data):

            echo '<img src="'.$picture_data->images->low_resolution->url.'">';

        endforeach;

    } while ($pictures = $instagram->pagination($pictures));

There are a lot of possible MIME types for CSV files, depending on the user's OS and browser version.

This is how I currently validate the MIME types of my CSV files:

$csv_mimetypes = array(
    'text/csv',
    'text/plain',
    'application/csv',
    'text/comma-separated-values',
    'application/excel',
    'application/vnd.ms-excel',
    'application/vnd.msexcel',
    'text/anytext',
    'application/octet-stream',
    'application/txt',
);

if (in_array($_FILES['upload']['type'], $csv_mimetypes)) {
    // possible CSV file
    // could also check for file content at this point
}

You access the last element of the set and then store the value in a variable.

So you have:

fileName = '7.3\n'

then just do:

fileName.strip()

which will leave you with 7.3. Then store that value back in the last element of the set.

You can use lstrip() or rstrip() to remove just the left or right side.

I imported a project as 'Existing Maven Project' and was getting this issue.

Resolution: Changed Java Build Path of JRE System Library to Workspace defailt JRE [jdk 1.8]

Steps:

Right click on project -> build path -> configure build path -> Libraries Tab -> double click JRE System Library -> change to Workspace defailt JRE [jdk 1.8]

Following code worked for me:

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.springframework.beans.factory.annotation.Autowired;

public class SomeClass {

    @Autowired
    private WebDriver driver;

     public void LogInSuperAdmin() {
        ((JavascriptExecutor) driver).executeScript("console.log('Test test');");
     }
}

This might be helpful for whoever else faces this problem. I finally figured out a solution. Turns out, even if we use the inline for "content-disposition" and specify a file name, the browsers still do not use the file name. Instead browsers try and interpret the file name based on the Path/URL.

You can read further on this URL: Securly download file inside browser with correct filename

This gave me an idea, I just created my URL route that would convert the URL and end it with the name of the file I wanted to give the file. So for e.g. my original controller call just consisted of passing the Order Id of the Order being printed. I was expecting the file name to be of the format Order{0}.pdf where {0} is the Order Id. Similarly for quotes, I wanted Quote{0}.pdf.

In my controller, I just went ahead and added an additional parameter to accept the file name. I passed the filename as a parameter in the URL.Action method.

I then created a new route that would map that URL to the format: http://localhost/ShoppingCart/PrintQuote/1054/Quote1054.pdf

routes.MapRoute("", "{controller}/{action}/{orderId}/{fileName}",
                new { controller = "ShoppingCart", action = "PrintQuote" }
                , new string[] { "x.x.x.Controllers" }
            );

This pretty much solved my issue. Hoping this helps someone!

Cheerz, Anup

Try to use createChild() method of DOM or insertRow() and insertCell() method of table object in script tag.

Install this nuget package from Microsoft System.Net.Http.Json. It contains extension methods.

Then add using System.Net.Http.Json

Now, you'll be able to see these methods:

So you can now do this:

await httpClient.GetFromJsonAsync<IList<WeatherForecast>>("weatherforecast");

Source: https://www.stevejgordon.co.uk/sending-and-receiving-json-using-httpclient-with-system-net-http-json

A good reason, which you have sort of touched on, is that once the CSRF cookie has been received, it is then available for use throughout the application in client script for use in both regular forms and AJAX POSTs. This will make sense in a JavaScript heavy application such as one employed by AngularJS (using AngularJS doesn't require that the application will be a single page app, so it would be useful where state needs to flow between different page requests where the CSRF value cannot normally persist in the browser).

Consider the following scenarios and processes in a typical application for some pros and cons of each approach you describe. These are based on the Synchronizer Token Pattern.

Request Body Approach

1. User successfully logs in.
2. Server issues auth cookie.
3. User clicks to navigate to a form.
4. If not yet generated for this session, server generates CSRF token, stores it against the user session and outputs it to a hidden field.
5. User submits form.
6. Server checks hidden field matches session stored token.

Advantages:

• Simple to implement.
• Works with AJAX.
• Works with forms.
• Cookie can actually be HTTP Only.

Disadvantages:

• All forms must output the hidden field in HTML.
• Any AJAX POSTs must also include the value.
• The page must know in advance that it requires the CSRF token so it can include it in the page content so all pages must contain the token value somewhere, which could make it time consuming to implement for a large site.

Custom HTTP Header (downstream)

1. User successfully logs in.
2. Server issues auth cookie.
3. User clicks to navigate to a form.
4. Page loads in browser, then an AJAX request is made to retrieve the CSRF token.
5. Server generates CSRF token (if not already generated for session), stores it against the user session and outputs it to a header.
6. User submits form (token is sent via hidden field).
7. Server checks hidden field matches session stored token.

Advantages:

• Works with AJAX.
• Cookie can be HTTP Only.

Disadvantages:

• Doesn't work without an AJAX request to get the header value.
• All forms must have the value added to its HTML dynamically.
• Any AJAX POSTs must also include the value.
• The page must make an AJAX request first to get the CSRF token, so it will mean an extra round trip each time.
• Might as well have simply output the token to the page which would save the extra request.

Custom HTTP Header (upstream)

1. User successfully logs in.
2. Server issues auth cookie.
3. User clicks to navigate to a form.
4. If not yet generated for this session, server generates CSRF token, stores it against the user session and outputs it in the page content somewhere.
5. User submits form via AJAX (token is sent via header).
6. Server checks custom header matches session stored token.

Advantages:

• Works with AJAX.
• Cookie can be HTTP Only.

Disadvantages:

• Doesn't work with forms.
• All AJAX POSTs must include the header.

Custom HTTP Header (upstream & downstream)

1. User successfully logs in.
2. Server issues auth cookie.
3. User clicks to navigate to a form.
4. Page loads in browser, then an AJAX request is made to retrieve the CSRF token.
5. Server generates CSRF token (if not already generated for session), stores it against the user session and outputs it to a header.
6. User submits form via AJAX (token is sent via header) .
7. Server checks custom header matches session stored token.

Advantages:

• Works with AJAX.
• Cookie can be HTTP Only.

Disadvantages:

• Doesn't work with forms.
• All AJAX POSTs must also include the value.
• The page must make an AJAX request first to get the CRSF token, so it will mean an extra round trip each time.

Set-Cookie

1. User successfully logs in.
2. Server issues auth cookie.
3. User clicks to navigate to a form.
4. Server generates CSRF token, stores it against the user session and outputs it to a cookie.
5. User submits form via AJAX or via HTML form.
6. Server checks custom header (or hidden form field) matches session stored token.
7. Cookie is available in browser for use in additional AJAX and form requests without additional requests to server to retrieve the CSRF token.

Advantages:

• Simple to implement.
• Works with AJAX.
• Works with forms.
• Doesn't necessarily require an AJAX request to get the cookie value. Any HTTP request can retrieve it and it can be appended to all forms/AJAX requests via JavaScript.
• Once the CSRF token has been retrieved, as it is stored in a cookie the value can be reused without additional requests.

Disadvantages:

• All forms must have the value added to its HTML dynamically.
• Any AJAX POSTs must also include the value.
• The cookie will be submitted for every request (i.e. all GETs for images, CSS, JS, etc, that are not involved in the CSRF process) increasing request size.
• Cookie cannot be HTTP Only.

So the cookie approach is fairly dynamic offering an easy way to retrieve the cookie value (any HTTP request) and to use it (JS can add the value to any form automatically and it can be employed in AJAX requests either as a header or as a form value). Once the CSRF token has been received for the session, there is no need to regenerate it as an attacker employing a CSRF exploit has no method of retrieving this token. If a malicious user tries to read the user's CSRF token in any of the above methods then this will be prevented by the Same Origin Policy. If a malicious user tries to retrieve the CSRF token server side (e.g. via curl) then this token will not be associated to the same user account as the victim's auth session cookie will be missing from the request (it would be the attacker's - therefore it won't be associated server side with the victim's session).

As well as the Synchronizer Token Pattern there is also the Double Submit Cookie CSRF prevention method, which of course uses cookies to store a type of CSRF token. This is easier to implement as it does not require any server side state for the CSRF token. The CSRF token in fact could be the standard authentication cookie when using this method, and this value is submitted via cookies as usual with the request, but the value is also repeated in either a hidden field or header, of which an attacker cannot replicate as they cannot read the value in the first place. It would be recommended to choose another cookie however, other than the authentication cookie so that the authentication cookie can be secured by being marked HttpOnly. So this is another common reason why you'd find CSRF prevention using a cookie based method.