I believe that throwing an exception is a better idea for your situation. An alternative will be the simulation method to return a tuple. The first item will be the status and the second one the result:

result = simulate(open("myfile"))
if not result[0]:
  print "error parsing stream"
else:
  ret= result[1]

Say you had some URL that gave you JSON data like:

{'field': 'value'}

...and you had a similar URL except it used JSONP, to which you passed the callback function name 'myCallback' (usually done by giving it a query parameter called 'callback', e.g. http://example.com/dataSource?callback=myCallback). Then it would return:

myCallback({'field':'value'})

...which is not just an object, but is actually code that can be executed. So if you define a function elsewhere in your page called myFunction and execute this script, it will be called with the data from the URL.

The cool thing about this is: you can create a script tag and use your URL (complete with callback parameter) as the src attribute, and the browser will run it. That means you can get around the 'same-origin' security policy (because browsers allow you to run script tags from sources other than the domain of the page).

This is what jQuery does when you make an ajax request (using .ajax with 'jsonp' as the value for the dataType property). E.g.

$.ajax({
  url: 'http://example.com/datasource',
  dataType: 'jsonp',
  success: function(data) {
    // your code to handle data here
  }
});

Here, jQuery takes care of the callback function name and query parameter - making the API identical to other ajax calls. But unlike other types of ajax requests, as mentioned, you're not restricted to getting data from the same origin as your page.

C# Implementation

Browser -> Server

    private String DecodeMessage(Byte[] bytes)
    {
        String incomingData = String.Empty;
        Byte secondByte = bytes[1];
        Int32 dataLength = secondByte & 127;
        Int32 indexFirstMask = 2;
        if (dataLength == 126)
            indexFirstMask = 4;
        else if (dataLength == 127)
            indexFirstMask = 10;

        IEnumerable<Byte> keys = bytes.Skip(indexFirstMask).Take(4);
        Int32 indexFirstDataByte = indexFirstMask + 4;

        Byte[] decoded = new Byte[bytes.Length - indexFirstDataByte];
        for (Int32 i = indexFirstDataByte, j = 0; i < bytes.Length; i++, j++)
        {
            decoded[j] = (Byte)(bytes[i] ^ keys.ElementAt(j % 4));
        }

        return incomingData = Encoding.UTF8.GetString(decoded, 0, decoded.Length);
    }

Server -> Browser

    private static Byte[] EncodeMessageToSend(String message)
    {
        Byte[] response;
        Byte[] bytesRaw = Encoding.UTF8.GetBytes(message);
        Byte[] frame = new Byte[10];

        Int32 indexStartRawData = -1;
        Int32 length = bytesRaw.Length;

        frame[0] = (Byte)129;
        if (length <= 125)
        {
            frame[1] = (Byte)length;
            indexStartRawData = 2;
        }
        else if (length >= 126 && length <= 65535)
        {
            frame[1] = (Byte)126;
            frame[2] = (Byte)((length >> 8) & 255);
            frame[3] = (Byte)(length & 255);
            indexStartRawData = 4;
        }
        else
        {
            frame[1] = (Byte)127;
            frame[2] = (Byte)((length >> 56) & 255);
            frame[3] = (Byte)((length >> 48) & 255);
            frame[4] = (Byte)((length >> 40) & 255);
            frame[5] = (Byte)((length >> 32) & 255);
            frame[6] = (Byte)((length >> 24) & 255);
            frame[7] = (Byte)((length >> 16) & 255);
            frame[8] = (Byte)((length >> 8) & 255);
            frame[9] = (Byte)(length & 255);

            indexStartRawData = 10;
        }

        response = new Byte[indexStartRawData + length];

        Int32 i, reponseIdx = 0;

        //Add the frame bytes to the reponse
        for (i = 0; i < indexStartRawData; i++)
        {
            response[reponseIdx] = frame[i];
            reponseIdx++;
        }

        //Add the data bytes to the response
        for (i = 0; i < length; i++)
        {
            response[reponseIdx] = bytesRaw[i];
            reponseIdx++;
        }

        return response;
    }

If the button is placed in a Flex widget (including Row & Column), you can wrap it using an Expanded Widget to fill the available space.

The answer to the question specifically asked is no. But have you been looking at mocking frameworks? I use MOQ but there's millions of them out there and they allow you to implement/stub (partially or fully) interfaces in-line. Eg.

public void ThisWillWork()
{
    var source = new DummySource[0];
    var mock = new Mock<DummyInterface>();

    mock.SetupProperty(m => m.A, source.Select(s => s.A));
    mock.SetupProperty(m => m.B, source.Select(s => s.C + "_" + s.D));

    DoSomethingWithDummyInterface(mock.Object);
}

To answer your question on how you can do it, you could get the entrySet from your map and then just put into the new map by using getValue as key and getKey as value.

But remember that keys in a Map are unique, which means if you have one value with two different key in your original map, only the second key (in iteration order) will be kep as value in the new map.

In my case I had to make a POST request, which had information sent through the header, and also a file sent using a FormData object.

I made it work using a combination of some of the answers here, so basically what ended up working was having this five lines in my Ajax request:

 contentType: "application/octet-stream",
 enctype: 'multipart/form-data',
 contentType: false,
 processData: false,
 data: formData,

Where formData was a variable created like this:

 var file = document.getElementById('uploadedFile').files[0];
 var form = $('form')[0];
 var formData = new FormData(form);
 formData.append("File", file);

I know the question has been asked a long time ago, but I am surprised that nobody has given the most straightforward unix answer:

split -l 5000 -d --additional-suffix=.txt $FileName file

• -l 5000: split file into files of 5,000 lines each.
• -d: numerical suffix. This will make the suffix go from 00 to 99 by default instead of aa to zz.
• --additional-suffix: lets you specify the suffix, here the extension
• $FileName: name of the file to be split.
• file: prefix to add to the resulting files.

As always, check out man split for more details.

For Mac, the default version of split is apparently dumbed down. You can install the GNU version using the following command. (see this question for more GNU utils)

brew install coreutils

and then you can run the above command by replacing split with gsplit. Check out man gsplit for details.

var name = from r in MyTable
            where r.ID == 0
            select r.Name;

If the row is unique then you could even just do:

var row = DataContext.MyTable.SingleOrDefault(r => r.ID == 0);
var name = row != null ? row.Name : String.Empty;

To support both Python 2 and Python 3, use explicit relative imports as below. They are relative to the current module. They have been supported starting from 2.5.

from .sister import foo
from . import brother
from ..aunt import bar
from .. import uncle

You can't make a JPEG image transparent. You should use a format that allows transparency, like GIF or PNG.

Paint will open these files, but AFAIK it'll erase transparency if you edit the file. Use some other application like Paint.NET (it's free).

Edit: since other people have mentioned it: you can convert JPEG images into PNG, in any editor that's capable of working with both types.

To get the job done, use

<table cellspacing=12>

If you’d rather “be right” than get things done, you can instead use the CSS property border-spacing, which is supported by some browsers.

You need to write code in the OnLocationChanged method, because this method is called when the location has changed. I.e. you need to save the new location to return it if getLocation is called.

If you don't use the onLocationChanged it always will be the old location.

As so many others have said, the object assigned to a val cannot be replaced, and the object assigned to a var can. However, said object can have its internal state modified. For example:

class A(n: Int) {
  var value = n
}

class B(n: Int) {
  val value = new A(n)
}

object Test {
  def main(args: Array[String]) {
    val x = new B(5)
    x = new B(6) // Doesn't work, because I can't replace the object created on the line above with this new one.
    x.value = new A(6) // Doesn't work, because I can't replace the object assigned to B.value for a new one.
    x.value.value = 6 // Works, because A.value can receive a new object.
  }
}

So, even though we can't change the object assigned to x, we could change the state of that object. At the root of it, however, there was a var.

Now, immutability is a good thing for many reasons. First, if an object doesn't change internal state, you don't have to worry if some other part of your code is changing it. For example:

x = new B(0)
f(x)
if (x.value.value == 0)
  println("f didn't do anything to x")
else
  println("f did something to x")

This becomes particularly important with multithreaded systems. In a multithreaded system, the following can happen:

x = new B(1)
f(x)
if (x.value.value == 1) {
  print(x.value.value) // Can be different than 1!
}

If you use val exclusively, and only use immutable data structures (that is, avoid arrays, everything in scala.collection.mutable, etc.), you can rest assured this won't happen. That is, unless there's some code, perhaps even a framework, doing reflection tricks -- reflection can change "immutable" values, unfortunately.

That's one reason, but there is another reason for it. When you use var, you can be tempted into reusing the same var for multiple purposes. This has some problems:

• It will be more difficult for people reading the code to know what is the value of a variable in a certain part of the code.
• You may forget to re-initialize the variable in some code path, and end up passing wrong values downstream in the code.

Simply put, using val is safer and leads to more readable code.

We can, then, go the other direction. If val is that better, why have var at all? Well, some languages did take that route, but there are situations in which mutability improves performance, a lot.

For example, take an immutable Queue. When you either enqueue or dequeue things in it, you get a new Queue object. How then, would you go about processing all items in it?

I'll go through that with an example. Let's say you have a queue of digits, and you want to compose a number out of them. For example, if I have a queue with 2, 1, 3, in that order, I want to get back the number 213. Let's first solve it with a mutable.Queue:

def toNum(q: scala.collection.mutable.Queue[Int]) = {
  var num = 0
  while (!q.isEmpty) {
    num *= 10
    num += q.dequeue
  }
  num
}

This code is fast and easy to understand. Its main drawback is that the queue that is passed is modified by toNum, so you have to make a copy of it beforehand. That's the kind of object management that immutability makes you free from.

Now, let's covert it to an immutable.Queue:

def toNum(q: scala.collection.immutable.Queue[Int]) = {
  def recurse(qr: scala.collection.immutable.Queue[Int], num: Int): Int = {
    if (qr.isEmpty)
      num
    else {
      val (digit, newQ) = qr.dequeue
      recurse(newQ, num * 10 + digit)
    }
  }
  recurse(q, 0)
}

Because I can't reuse some variable to keep track of my num, like in the previous example, I need to resort to recursion. In this case, it is a tail-recursion, which has pretty good performance. But that is not always the case: sometimes there is just no good (readable, simple) tail recursion solution.

Note, however, that I can rewrite that code to use an immutable.Queue and a var at the same time! For example:

def toNum(q: scala.collection.immutable.Queue[Int]) = {
  var qr = q
  var num = 0
  while (!qr.isEmpty) {
    val (digit, newQ) = qr.dequeue
    num *= 10
    num += digit
    qr = newQ
  }
  num
}

This code is still efficient, does not require recursion, and you don't need to worry whether you have to make a copy of your queue or not before calling toNum. Naturally, I avoided reusing variables for other purposes, and no code outside this function sees them, so I don't need to worry about their values changing from one line to the next -- except when I explicitly do so.

Scala opted to let the programmer do that, if the programmer deemed it to be the best solution. Other languages have chosen to make such code difficult. The price Scala (and any language with widespread mutability) pays is that the compiler doesn't have as much leeway in optimizing the code as it could otherwise. Java's answer to that is optimizing the code based on the run-time profile. We could go on and on about pros and cons to each side.

Personally, I think Scala strikes the right balance, for now. It is not perfect, by far. I think both Clojure and Haskell have very interesting notions not adopted by Scala, but Scala has its own strengths as well. We'll see what comes up on the future.

A great slide show on how to achieve the desired effect from Googles Nick Butcher (start at slide 20). He uses the standard android @attr to style the button and divider.

Dummy data (you should supply this for us)

visual1 = data.frame(ISSUE_DATE=runif(100,2006,2008),COUNTED=runif(100,0,50))
visual2 = data.frame(ISSUE_DATE=runif(100,2006,2008),COUNTED=runif(100,0,50))

combine:

visuals = rbind(visual1,visual2)
visuals$vis=c(rep("visual1",100),rep("visual2",100)) # 100 points of each flavour

Now do:

 ggplot(visuals, aes(ISSUE_DATE,COUNTED,group=vis,col=vis)) + 
   geom_point() + geom_smooth()

and adjust colours etc to taste.

I imagine a common error not currently mentioned above is trying to write to a mount space (e.g., /media/drivename) when the partition isn't mounted. That will produce this error as well.

If it's an encrypted drive set to auto-mount but doesn't, might be an issue of auto-unlocking the encrypted partition before attempting to write to the space where it is supposed to be mounted.

• .exe - the 'normal' executable

• .vshost.exe - a special version of the executable to aid debuging; see MSDN for details

• .pdb - the Program Data Base with debug symbols

• .vshost.exe.manifest - a kind of configuration file containing mostly dependencies on libraries

There are a few ways to go about this. One option would be to use inputfile.read() instead of inputfile.readlines() - you'd need to write separate code to strip the first four lines, but if you want the final output as a single string anyway, this might make the most sense.

A second, simpler option would be to rejoin the strings after striping the first four lines with my_text = ''.join(my_text). This is a little inefficient, but if speed isn't a major concern, the code will be simplest.

Finally, if you actually want the output as a list of strings instead of a single string, you can just modify your data parser to iterate over the list. That might looks something like this:

def data_parser(lines, dic):
    for i, j in dic.iteritems():
        for (k, line) in enumerate(lines):
            lines[k] = line.replace(i, j)
    return lines

If you're a fan of NumPyish syntax, then there's tensor.shape.

In [3]: ar = torch.rand(3, 3)

In [4]: ar.shape
Out[4]: torch.Size([3, 3])

# method-1
In [7]: list(ar.shape)
Out[7]: [3, 3]

# method-2
In [8]: [*ar.shape]
Out[8]: [3, 3]

# method-3
In [9]: [*ar.size()]
Out[9]: [3, 3]

P.S.: Note that tensor.shape is an alias to tensor.size(), though tensor.shape is an attribute of the tensor in question whereas tensor.size() is a function.

Yes, you can get it with unpyclib that can be found on pypi.

$ pip install unpyclib

Than you can decompile your .pyc file

$ python -m unpyclib.application -Dq path/to/file.pyc

Also worth mentioning, in C# the OR operator is short-circuiting. In your example, Close seems to be a property, but if it were a method, it's worth noting that:

if (ActionsLogWriter.Close() || ErrorDumpWriter.Close())

is fundamentally different from

if (ErrorDumpWriter.Close() || ActionsLogWriter.Close())

In C#, if the first expression returns true, the second expression will not be evaluated at all. Just be aware of this. It actually works to your advantage most of the time.

On the data dictionary side there are a lot of tools you can use to such as Schema Spy

To look at what queries are running look at views sys.v_$sql and sys.v_$sqltext. You will also need access to sys.all_users

One thing to note that queries that use parameters will show up once with entries like

and TABLETYPE=’:b16’

while others that dont will show up multiple times such as:

and TABLETYPE=’MT’

An example of these tables in action is the following SQL to find the top 20 diskread hogs. You could change this by removing the WHERE rownum <= 20 and maybe add ORDER BY module. You often find the module will give you a bog clue as to what software is running the query (eg: "TOAD 9.0.1.8", "JDBC Thin Client", "runcbl@somebox (TNS V1-V3)" etc)

SELECT 
 module, 
 sql_text, 
 username, 
 disk_reads_per_exec, 
 buffer_gets, 
 disk_reads, 
 parse_calls, 
 sorts, 
 executions, 
 rows_processed, 
 hit_ratio, 
 first_load_time, 
 sharable_mem, 
 persistent_mem, 
 runtime_mem, 
 cpu_time, 
 elapsed_time, 
 address, 
 hash_value 
FROM 
  (SELECT
   module, 
   sql_text , 
   u.username , 
   round((s.disk_reads/decode(s.executions,0,1, s.executions)),2)  disk_reads_per_exec, 
   s.disk_reads , 
   s.buffer_gets , 
   s.parse_calls , 
   s.sorts , 
   s.executions , 
   s.rows_processed , 
   100 - round(100 *  s.disk_reads/greatest(s.buffer_gets,1),2) hit_ratio, 
   s.first_load_time , 
   sharable_mem , 
   persistent_mem , 
   runtime_mem, 
   cpu_time, 
   elapsed_time, 
   address, 
   hash_value 
  FROM
   sys.v_$sql s, 
   sys.all_users u 
  WHERE
   s.parsing_user_id=u.user_id 
   and UPPER(u.username) not in ('SYS','SYSTEM') 
  ORDER BY
   4 desc) 
WHERE
 rownum <= 20;

Note that if the query is long .. you will have to query v_$sqltext. This stores the whole query. You will have to look up the ADDRESS and HASH_VALUE and pick up all the pieces. Eg:

SELECT
 *
FROM
 sys.v_$sqltext
WHERE
 address = 'C0000000372B3C28'
 and hash_value = '1272580459'
ORDER BY 
 address, hash_value, command_type, piece
;

After reinstalling Android Studio, Is working without adb kill-server

var anchor = angular.element('<a/>');
anchor.css({display: 'none'}); // Make sure it's not visible
angular.element(document.body).append(anchor); // Attach to document

anchor.attr({
    href: 'data:attachment/csv;charset=utf-8,' + encodeURI(data),
    target: '_blank',
    download: 'filename.csv'
})[0].click();

anchor.remove(); // Clean it up afterwards

This code works both Mozilla and chrome

In Bootstrap 3 I've added a table-no-border class

.table-no-border>thead>tr>th, 
.table-no-border>tbody>tr>th, 
.table-no-border>tfoot>tr>th, 
.table-no-border>thead>tr>td, 
.table-no-border>tbody>tr>td, 
.table-no-border>tfoot>tr>td {
  border-top: none; 
}

After several month without real solution for this problem, I suppose that the best solution is to upgrade the application to .NET framework 4.0, which is supported by Windows 8, Windows 10 and Windows 2012 Server by default and it is still available as offline installation for Windows XP.

Use the gca ("get current axes") helper function:

ax = plt.gca()

Example:

import matplotlib.pyplot as plt
import matplotlib.finance
quotes = [(1, 5, 6, 7, 4), (2, 6, 9, 9, 6), (3, 9, 8, 10, 8), (4, 8, 8, 9, 8), (5, 8, 11, 13, 7)]
ax = plt.gca()
h = matplotlib.finance.candlestick(ax, quotes)
plt.show()

sed is the Stream EDitor. It can do a whole pile of really cool things, but the most common is text replacement.

The s,%,$,g part of the command line is the sed command to execute. The s stands for substitute, the , characters are delimiters (other characters can be used; /, : and @ are popular). The % is the pattern to match (here a literal percent sign) and the $ is the second pattern to match (here a literal dollar sign). The g at the end means to globally replace on each line (otherwise it would only update the first match).

This is a little C program that illustrates how you could use color codes:

#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;
}

for this problem please follow bellow code:

$time= '10:09';
$new_time=date('H:i',strtotime($time.'+ 1 hour'));
echo $new_time;`
// now output will be: 11:09

Pass cls parameter into @classmethod to resolve this problem.

@classmethod
def test(cls):
    return ''

Your code's perfect except that you must do the following replacement:

minutes += 1 #instead of mins = minutes + 1

or

minutes = minutes + 1 #instead of mins = minutes + 1

but here's another solution to this problem:

def wait(time_in_seconds):
    time.sleep(time_in_seconds) #here it would be 1200 seconds (20 mins)

As long as your file has consistent formatting (i.e. line-breaks), this is easy with just basic file IO and string operations:

with open('my_file.txt', 'rU') as in_file:
    data = in_file.read().split('\n')

That will store your data file as a list of items, one per line. To then put it into a file, you would do the opposite:

with open('new_file.txt', 'w') as out_file:
    out_file.write('\n'.join(data)) # This will create a string with all of the items in data separated by new-line characters

Hopefully that fits what you're looking for.

400 Bad Request is proper HTTP status code for your use case. The code is defined by HTTP/0.9-1.1 RFC.

The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications.

http://tools.ietf.org/html/rfc2616#section-10.4.1

422 Unprocessable Entity is defined by RFC 4918 - WebDav. Note that there is slight difference in comparison to 400, see quoted text below.

This error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.

To keep uniform interface you should use 422 only in a case of XML responses and you should also support all status codes defined by Webdav extension, not just 422.

http://tools.ietf.org/html/rfc4918#page-78

See also Mark Nottingham's post on status codes:

it’s a mistake to try to map each part of your application “deeply” into HTTP status codes; in most cases the level of granularity you want to be aiming for is much coarser. When in doubt, it’s OK to use the generic status codes 200 OK, 400 Bad Request and 500 Internal Service Error when there isn’t a better fit.

How to Think About HTTP Status Codes

WebSocket is just another application level protocol over TCP protocol, just like HTTP.

Some snippets < Spring in Action 4> quoted below, hope it can help you understand WebSocket better.

In its simplest form, a WebSocket is just a communication channel between two applications (not necessarily a browser is involved)...WebSocket communication can be used between any kinds of applications, but the most common use of WebSocket is to facilitate communication between a server application and a browser-based application.

Because (a.y - b.y) is probably less then (a.x - b.x) and in your code the casting is done after the divide operation so the result is an integer so 0.

You should cast to float before the / operation

CORS can become a headache, if we do not correctly understand its functioning. I use them in PHP and they work without problems. reference here

header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Credentials: true");
header("Access-Control-Max-Age: 1000");
header("Access-Control-Allow-Headers: X-Requested-With, Content-Type, Origin, Cache-Control, Pragma, Authorization, Accept, Accept-Encoding");
header("Access-Control-Allow-Methods: PUT, POST, GET, OPTIONS, DELETE");

NullPointerExceptions are exceptions that occur when you try to use a reference that points to no location in memory (null) as though it were referencing an object. Calling a method on a null reference or trying to access a field of a null reference will trigger a NullPointerException. These are the most common, but other ways are listed on the NullPointerException javadoc page.

Probably the quickest example code I could come up with to illustrate a NullPointerException would be:

public class Example {

    public static void main(String[] args) {
        Object obj = null;
        obj.hashCode();
    }

}

On the first line inside main, I'm explicitly setting the Object reference obj equal to null. This means I have a reference, but it isn't pointing to any object. After that, I try to treat the reference as though it points to an object by calling a method on it. This results in a NullPointerException because there is no code to execute in the location that the reference is pointing.

(This is a technicality, but I think it bears mentioning: A reference that points to null isn't the same as a C pointer that points to an invalid memory location. A null pointer is literally not pointing anywhere, which is subtly different than pointing to a location that happens to be invalid.)

So my solution was to also set localStorage when setting my state and then get the value from localStorage again inside of the getInitialState callback like so:

getInitialState: function() {
    var selectedOption = localStorage.getItem( 'SelectedOption' ) || 1;

    return {
        selectedOption: selectedOption
    };
},

setSelectedOption: function( option ) {
    localStorage.setItem( 'SelectedOption', option );
    this.setState( { selectedOption: option } );
}

I'm not sure if this can be considered an Anti-Pattern but it works unless there is a better solution.

I believe you would have to "git revert" back to that commit and then push it. Or you could cherry-pick a commit into a new branch, and push that to the branch on the remote repository. Something like:

git branch onecommit
git checkout onecommit
git cherry-pick 7300a6130d9447e18a931e898b64eefedea19544 # From the other branch
git push origin {branch}

I wrote this a long time ago (from years 1985-1992, with just a few tweaks since then), and just copy and paste the bits needed into each project.

You must call cfmakeraw on a tty obtained from tcgetattr. You cannot zero-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especially on the BSDs and OS X. "Unexplained intermittent failures" include hanging in read(3).

#include <errno.h>
#include <fcntl.h> 
#include <string.h>
#include <termios.h>
#include <unistd.h>

int
set_interface_attribs (int fd, int speed, int parity)
{
        struct termios tty;
        if (tcgetattr (fd, &tty) != 0)
        {
                error_message ("error %d from tcgetattr", errno);
                return -1;
        }

        cfsetospeed (&tty, speed);
        cfsetispeed (&tty, speed);

        tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8;     // 8-bit chars
        // disable IGNBRK for mismatched speed tests; otherwise receive break
        // as \000 chars
        tty.c_iflag &= ~IGNBRK;         // disable break processing
        tty.c_lflag = 0;                // no signaling chars, no echo,
                                        // no canonical processing
        tty.c_oflag = 0;                // no remapping, no delays
        tty.c_cc[VMIN]  = 0;            // read doesn't block
        tty.c_cc[VTIME] = 5;            // 0.5 seconds read timeout

        tty.c_iflag &= ~(IXON | IXOFF | IXANY); // shut off xon/xoff ctrl

        tty.c_cflag |= (CLOCAL | CREAD);// ignore modem controls,
                                        // enable reading
        tty.c_cflag &= ~(PARENB | PARODD);      // shut off parity
        tty.c_cflag |= parity;
        tty.c_cflag &= ~CSTOPB;
        tty.c_cflag &= ~CRTSCTS;

        if (tcsetattr (fd, TCSANOW, &tty) != 0)
        {
                error_message ("error %d from tcsetattr", errno);
                return -1;
        }
        return 0;
}

void
set_blocking (int fd, int should_block)
{
        struct termios tty;
        memset (&tty, 0, sizeof tty);
        if (tcgetattr (fd, &tty) != 0)
        {
                error_message ("error %d from tggetattr", errno);
                return;
        }

        tty.c_cc[VMIN]  = should_block ? 1 : 0;
        tty.c_cc[VTIME] = 5;            // 0.5 seconds read timeout

        if (tcsetattr (fd, TCSANOW, &tty) != 0)
                error_message ("error %d setting term attributes", errno);
}


...
char *portname = "/dev/ttyUSB1"
 ...
int fd = open (portname, O_RDWR | O_NOCTTY | O_SYNC);
if (fd < 0)
{
        error_message ("error %d opening %s: %s", errno, portname, strerror (errno));
        return;
}

set_interface_attribs (fd, B115200, 0);  // set speed to 115,200 bps, 8n1 (no parity)
set_blocking (fd, 0);                // set no blocking

write (fd, "hello!\n", 7);           // send 7 character greeting

usleep ((7 + 25) * 100);             // sleep enough to transmit the 7 plus
                                     // receive 25:  approx 100 uS per char transmit
char buf [100];
int n = read (fd, buf, sizeof buf);  // read up to 100 characters if ready to read

The values for speed are B115200, B230400, B9600, B19200, B38400, B57600, B1200, B2400, B4800, etc. The values for parity are 0 (meaning no parity), PARENB|PARODD (enable parity and use odd), PARENB (enable parity and use even), PARENB|PARODD|CMSPAR (mark parity), and PARENB|CMSPAR (space parity).

"Blocking" sets whether a read() on the port waits for the specified number of characters to arrive. Setting no blocking means that a read() returns however many characters are available without waiting for more, up to the buffer limit.

Addendum:

CMSPAR is needed only for choosing mark and space parity, which is uncommon. For most applications, it can be omitted. My header file /usr/include/bits/termios.h enables definition of CMSPAR only if the preprocessor symbol __USE_MISC is defined. That definition occurs (in features.h) with

#if defined _BSD_SOURCE || defined _SVID_SOURCE
 #define __USE_MISC     1
#endif

The introductory comments of <features.h> says:

/* These are defined by the user (or the compiler)
   to specify the desired environment:

...
   _BSD_SOURCE          ISO C, POSIX, and 4.3BSD things.
   _SVID_SOURCE         ISO C, POSIX, and SVID things.
...
 */

Whatever urllib is using to figure out Content-Length seems to get confused by json, so you have to calculate that yourself.

import json
import urllib2
data = json.dumps([1, 2, 3])
clen = len(data)
req = urllib2.Request(url, data, {'Content-Type': 'application/json', 'Content-Length': clen})
f = urllib2.urlopen(req)
response = f.read()
f.close()

Took me for ever to figure this out, so I hope it helps someone else.

You will find these assemblies in the Extensions group under Assemblies in Visual Studio 2010, 2012 & 2013 (Reference Manager)

Another solution which worked for me is to go to Java--> Appearence --> Type Filters and do disable all

DevTools tech writer and developer advocate here.

Starting in Chrome 65, Local Overrides is a new, lightweight way to do this. This is a different feature than Workspaces.

Set up Overrides

1. Go to Sources panel.
2. Go to Overrides tab.
3. Click Select Folder For Overrides.
4. Select which directory you want to save your changes to.
5. At the top of your viewport, click Allow to give DevTools read and write access to the directory.
6. Make your changes. In the GIF below, you can see that the background:rosybrown change persists across page loads.

How overrides work

When you make a change in DevTools, DevTools saves the change to a modified copy of the file on your computer. When you reload the page, DevTools serves the modified file, rather than the network resource.

The difference between overrides and workspaces

Workspaces is designed to let you use DevTools as your IDE. It maps your repository code to the network code, using source maps. The real benefit is if you're minifying your code, or using code that needs to get transpiled, like SCSS, then the changes you make in DevTools (usually) get mapped back into your original source code. Overrides, on the other hand, let you modify and save any file on the web. It's a good solution if you just want to quickly experiment with changes, and save those changes across page loads.

None of the above worked for me. This works for me:

$username = $form["username"]->getData();
$password = $form["password"]->getData();

I hope it helps.

Am I missing something? You can just convert offer_date in the comparison:

SELECT *
FROM offers
WHERE to_char(offer_date, 'YYYYMM') = (SELECT to_date(create_date, 'YYYYMM') FROM customers where id = '12345678') AND
      offer_rate > 0 

Check out ALL_TRIGGERS:

http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/statviews_2107.htm#i1592586

I'm very sorry for necro-threading but I wanted to provide a solution without converting the integer to a string. Also I wanted to work with more computer-like thinking so that's why the answer from Chris Mueller wasn't good enough for me.

So without further ado,

import math

def count_number(number):
    counter = 0
    counter_number = number
    while counter_number > 0:
        counter_number //= 10
        counter += 1
    return counter


def digit_selector(number, selected_digit, total):
    total_counter = total
    calculated_select = total_counter - selected_digit
    number_selected = int(number / math.pow(10, calculated_select))
    while number_selected > 10:
        number_selected -= 10
    return number_selected


def main():
    x = 1548731588
    total_digits = count_number(x)
    digit_2 = digit_selector(x, 2, total_digits)
    return print(digit_2)


if __name__ == '__main__':
    main()

which will print:

5

Hopefully someone else might need this specific kind of code. Would love to have feedback on this aswell!

This should find any digit in a integer.

Flaws:

Works pretty ok but if you use this for long numbers then it'll take more and more time. I think that it would be possible to see if there are multiple thousands etc and then substract those from number_selected but that's maybe for another time ;)

Usage:

You need every line from 1-21. Then you can call first count_number to make it count your integer.

x = 1548731588
total_digits = count_number(x)

Then read/use the digit_selector function as follows:

digit_selector('insert your integer here', 'which digit do you want to have? (starting from the most left digit as 1)', 'How many digits are there in total?')

If we have 1234567890, and we need 4 selected, that is the 4th digit counting from left so we type '4'.

We know how many digits there are due to using total_digits. So that's pretty easy.

Hope that explains everything!

Han

PS: Special thanks for CodeVsColor for providing the count_number function. I used this link: https://www.codevscolor.com/count-number-digits-number-python to help me make the digit_selector work.

Prerequisites: 1. If you have multiple Modules 2. And you are using a component (suppose DemoComponent) from a different module (suppose AModule), in a different module (suppose BModule)

Then Your AModule should be

@NgModule({
  declarations: [DemoComponent],
  imports: [
    CommonModule
  ],
  exports: [AModule]
})
export class AModule{ }

and your BModule should be

@NgModule({
  declarations: [],
  imports: [
    CommonModule, AModule
  ],
  exports: [],
})
export class BModule { }

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
    $('#purpose').on('change', function() {
      if ( this.value == '1')
      //.....................^.......
      {
           $("#business_new").hide();
        $("#business").show();
      }
      else  if ( this.value == '2')
      {
          $("#business").hide();
        $("#business_new").show();
      }
       else  
      {
        $("#business").hide();
      }
    });
});
</script>
<body>
<select id='purpose'>
<option value="0">Personal use</option>
<option value="1">Business use</option>
<option value="2">Passing on to a client</option>
</select>
<div style='display:none;' id='business'>Business Name<br/>&nbsp;
<br/>&nbsp;
    <input type='text' class='text' name='business' value size='20' />
    <input type='text' class='text' name='business' value size='20' />
    <br/>
</div>
<div style='display:none;' id='business_new'>Business Name<br/>&nbsp;
<br/>&nbsp;
    <input type='text' class='text' name='business' value="1254" size='20' />
    <input type='text' class='text' name='business' value size='20' />
    <br/>
</div>
</body>

On Ubuntu 14.04,

apt-get install ruby ruby-dev

this will install gem for you.

Just faced the issue of Unexpected end of JSON input while parsing near.. while adding the 'radium' package in my React App. As a matter of fact, I am facing this issue even when trying to update the NPM to the latest version.

Anyways, NPM didn't work after clearing the cache and it also won't update to the latest version right now but adding the package via Yarn did the trick for me.

So, if you are in a hurry to solve this issue but you are not able to, then give yarn a try instead of npm.

Happy Coding!

Update

After trying few things finally sudo npm cache clean --force worked for me.

This can be a temporary glitch in your network or with something else in the npm registry.

In doubt change your editor to make tabs and spaces visible. It is also a very good idea to have the editor resolve all tabs to 4 spaces.

Use /[^0-9.,]+/ if you want floats.

Url Encoding is easy in .NET. Use:

System.Web.HttpUtility.UrlEncode(string url)

If that'll be decoded to get the folder name, you'll still need to exclude characters that can't be used in folder names (*, ?, /, etc.)

There is no standard C (or C++) way to enumerate files in a directory.

Under Windows you can use the FindFirstFile/FindNextFile functions to enumerate all entries in a directory. Under Linux/OSX use the opendir/readdir/closedir functions.

Final working solution using @Arrigo response and @Samitha Chathuranga comment, I'll put all together to build a full response for this question:

1. Suppose you have your project folder on PC;

2. Create a new repository on bitbucket:

3. Press on I have an existing project:

4. Open Git CMD console and type command 1 from second picture(go to your project folder on your PC)

5. Type command git init

6. Type command git add --all

7. Type command 2 from second picture (git remote add origin YOUR_LINK_TO_REPO)

8. Type command git commit -m "my first commit"

9. Type command git push -u origin master

Note: if you get error unable to detect email or name, just type following commands after 5th step:

 git config --global user.email "yourEmail"  #your email at Bitbucket
 git config --global user.name "yourName"  #your name at Bitbucket

You could use the ArrayUtils API to remove it in a "nice looking way". It implements many operations (remove, find, add, contains,etc) on Arrays.
Take a look. It has made my life simpler.

for you to achieve that, you not only need to know how recursion works but you also need to understand the String method. here is a sample code that I used to achieve it: -

class PalindromeRecursive {
  public static void main(String[] args) {


    Scanner sc=new Scanner(System.in);
    System.out.println("Enter a string");
    String input=sc.next();
    System.out.println("is "+ input + "a palindrome : " +  isPalindrome(input));


  }

  public static  boolean isPalindrome(String s)
  {
    int low=0;
    int high=s.length()-1;
    while(low<high)
    {
      if(s.charAt(low)!=s.charAt(high))
      return false;
      isPalindrome(s.substring(low++,high--));
    }

    return true;
  }
}

You could have a redirect servlet. In you web.xml you'd have:

<servlet>
    <servlet-name>images</servlet-name>
    <servlet-class>com.example.images.ImageServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>images</servlet-name>
    <url-pattern>/images/*</url-pattern>
</servlet-mapping>

All your images would be in "/images", which would be intercepted by the servlet. It would then read in the relevant file in whatever folder and serve it right back out. For example, say you have a gif in your images folder, c:\Server_Images\smilie.gif. In the web page would be <img src="http:/example.com/app/images/smilie.gif".... In the servlet, HttpServletRequest.getPathInfo() would yield "/smilie.gif". Which the servlet would find in the folder.

As of Node.js v6.0.0 using the constructor method has been deprecated and the following method should instead be used to construct a new buffer from a base64 encoded string:

var b64string = /* whatever */;
var buf = Buffer.from(b64string, 'base64'); // Ta-da

For Node.js v5.11.1 and below

Construct a new Buffer and pass 'base64' as the second argument:

var b64string = /* whatever */;
var buf = new Buffer(b64string, 'base64'); // Ta-da

If you want to be clean, you can check whether from exists :

if (typeof Buffer.from === "function") {
    // Node 5.10+
    buf = Buffer.from(b64string, 'base64'); // Ta-da
} else {
    // older Node versions, now deprecated
    buf = new Buffer(b64string, 'base64'); // Ta-da
}

but classes are so 2018

ScrollToTop implementation with React Hooks

ScrollToTop.js

import { useEffect } from 'react';
import { withRouter } from 'react-router-dom';

function ScrollToTop({ history }) {
  useEffect(() => {
    const unlisten = history.listen(() => {
      window.scrollTo(0, 0);
    });
    return () => {
      unlisten();
    }
  }, []);

  return (null);
}

export default withRouter(ScrollToTop);

Usage:

<Router>
  <Fragment>
    <ScrollToTop />
    <Switch>
        <Route path="/" exact component={Home} />
    </Switch>
  </Fragment>
</Router>

ScrollToTop can also be implemented as a wrapper component:

ScrollToTop.js

import React, { useEffect, Fragment } from 'react';
import { withRouter } from 'react-router-dom';

function ScrollToTop({ history, children }) {
  useEffect(() => {
    const unlisten = history.listen(() => {
      window.scrollTo(0, 0);
    });
    return () => {
      unlisten();
    }
  }, []);

  return <Fragment>{children}</Fragment>;
}

export default withRouter(ScrollToTop);

Usage:

<Router>
  <ScrollToTop>
    <Switch>
        <Route path="/" exact component={Home} />
    </Switch>
  </ScrollToTop>
</Router>

Go to the source folder where your project is.

1. Copy the project and past and change the name.
2. Open Android Studio and refresh.
3. Go to ->Settings.gradle.
4. Include ':your new project name '

IMO, you should have a look at the Observer Pattern, and this is how most of the listeners work

Do you want iteration? itertools.combinations. Common usage:

>>> import itertools
>>> itertools.combinations('abcd',2)
<itertools.combinations object at 0x01348F30>
>>> list(itertools.combinations('abcd',2))
[('a', 'b'), ('a', 'c'), ('a', 'd'), ('b', 'c'), ('b', 'd'), ('c', 'd')]
>>> [''.join(x) for x in itertools.combinations('abcd',2)]
['ab', 'ac', 'ad', 'bc', 'bd', 'cd']

If you just need to compute the formula, use math.factorial:

import math

def nCr(n,r):
    f = math.factorial
    return f(n) / f(r) / f(n-r)

if __name__ == '__main__':
    print nCr(4,2)

In Python 3, use the integer division // instead of / to avoid overflows:

return f(n) // f(r) // f(n-r)

Output

6

On Windows, I prefer Ctrl + Alt + Down.

It selects the lines one by one and automatically starts the multi-line editor mode. It is a bit faster this way. If you have a lot of lines to edit then selecting the text and Ctrl + Shift + L is a better choice.

In case somebody has this problem

Cannot invoke initializer for type 'Int' with an argument list of type '(Array<Element>.Index?)'

jsut do this

extension Int {
    var toInt: Int {
        return self
    }
}

then

guard let finalIndex = index?.toInt else {
    return false
}

Clear answers are already provided. But it's worth mentioning how devDependencies affects installing packages:

By default, npm install will install all modules listed as dependencies in package.json . With the --production flag (or when the NODE_ENV environment variable is set to production ), npm will not install modules listed in devDependencies .

See: https://docs.npmjs.com/cli/install

If you are using zsh you can run:

setopt histignorespace

After this is set, each command starting with a space will be excluded from history.

You can use aliases in .zshrc to turn this on/off:

# Toggle ignore-space. Useful when entering passwords.
alias history-ignore-space-on='\
setopt hist_ignore_space;\
echo "Commands starting with space are now EXCLUDED from history."'

alias history-ignore-space-off='\
unsetopt hist_ignore_space;\
echo "Commands starting with space are now ADDED to history."'

I had the same issue and this helped me.

<ImageView
    android:id="@+id/image"
    android:layout_width="100dp"
    android:layout_height="100dp"
    android:scaleType="fitXY"
    />

As MDN Window.history() describes :

For top-level pages you can see the list of pages in the session history, accessible via the History object, in the browser's dropdowns next to the back and forward buttons.

For security reasons the History object doesn't allow the non-privileged code to access the URLs of other pages in the session history, but it does allow it to navigate the session history.

There is no way to clear the session history or to disable the back/forward navigation from unprivileged code. The closest available solution is the location.replace() method, which replaces the current item of the session history with the provided URL.

So there is no Javascript method to clear the session history, instead, if you want to block navigating back to a certain page, you can use the location.replace() method, and pass the page link as parameter, which will not push the page to the browser's session history list. For example, there are three pages:

a.html:

<!doctype html>
<html>
    <head>
        <title>a.html page</title>
    <meta charset="utf-8">
    </head>
    <body>
         <p>This is <code style="color:red">a.html</code> page ! Go to <a href="b.html">b.html</a> page !</p>        
    </body>
 </html>

b.html:

<!doctype html>
<html>
    <head>
    <title>b.html page</title>
    <meta charset="utf-8">
</head>
<body>
    <p>This is <code style="color:red">b.html</code> page ! Go to <a id="jumper" href="c.html">c.html</a> page !</p>

    <script type="text/javascript">
        var jumper = document.getElementById("jumper");
        jumper.onclick = function(event) {
            var e = event || window.event ;
            if(e.preventDefault) {
                e.preventDefault();
            } else {
                e.returnValue = true ;
            }
            location.replace(this.href);
            jumper = null;
        }
    </script>
</body>

c.html:

<!doctype html>
<html>
<head>
    <title>c.html page</title>
    <meta charset="utf-8">
</head>
<body>
    <p>This is <code style="color:red">c.html</code> page</p>
</body>
</html>

With href link, we can navigate from a.html to b.html to c.html. In b.html, we use the location.replace(c.html) method to navigate from b.html to c.html. Finally, we go to c.html*, and if we click the back button in the browser, we will jump to **a.html.

So this is it! Hope it helps.

You need to use either the globals loader or expose loader to ensure that webpack includes the jQuery lib in your source code output and so that it doesn't throw errors when your use $ in your components.

// example with expose loader:
npm i --save-dev expose-loader

// somewhere, import (require) this jquery, but pipe it through the expose loader
require('expose?$!expose?jQuery!jquery')

If you prefer, you can import (require) it directly within your webpack config as a point of entry, so I understand, but I don't have an example of this to hand

Alternatively, you can use the globals loader like this: https://www.npmjs.com/package/globals-loader

To uninstall it globally just run below command:

npm uninstall -g @angular/cli

Once it is done, clear your cache by running below command:

npm cache clean

Now, to install the latset version of Angular, just run:

npm install -g @angular/cli@latest

For details about Angular CLI, take a look at Angular introduction and CLI guide

This is caused by non-matching Spring Boot dependencies. Check your classpath to find the offending resources. You have explicitly included version 1.1.8.RELEASE, but you have also included 3 other projects. Those likely contain different Spring Boot versions, leading to this error.

It's platform-specific. But you can cast it to a known type.

printf("%lld\n", (long long) time(NULL));

using an invalid/null pointer? Overrunning the bounds of an array? Kindof hard to be specific without any sample code.

Essentially, you are attempting to access memory that doesn't belong to your program, so the OS kills it.

I think this does the best job

https://angular.io/api/platform-browser/EventManager

for instance in app.component

constructor(private eventManager: EventManager) {
    const removeGlobalEventListener = this.eventManager.addGlobalEventListener(
      'document',
      'keypress',
      (ev) => {
        console.log('ev', ev);
      }
    );
  }

bash has a "built-in" command called "echo":

$ type echo
echo is a shell builtin

Additionally, there is an "echo" command that is a proper executable (that is, the shell forks and execs /bin/echo, as opposed to interpreting echo and executing it):

$ ls -l /bin/echo
-rwxr-xr-x 1 root root 22856 Jul 21  2011 /bin/echo

The behavior of either echo's WRT to \c and -n varies. Your best bet is to use printf, which is available on four different *NIX flavors that I looked at:

$ printf "a line without trailing linefeed"
$ printf "a line with trailing linefeed\n"

public Configuration()
{
    AutomaticMigrationsEnabled = false;

    // register mysql code generator

    SetSqlGenerator("MySql.Data.MySqlClient", new MySql.Data.Entity.MySqlMigrationSqlGenerator());
}

I find out that connector 6.6.4 will not work with Entity Framework 5 but with Entity Framework 4.3. So to downgrade issue the following commands in the package manager console:

Uninstall-Package EntityFramework

Install-Package EntityFramework -Version 4.3.1

Finally I do Update-Database -Verbose again and voila! The schema and tables are created. Wait for the next version of connector to use it with Entity Framework 5.

In javascript (node.js) this works for me:

describe('UI', function() {

describe('gets results from Bing', function() {
    this.timeout(10000);

    it('makes a search', function(done) {
        var driver = new webdriver.Builder().
        withCapabilities(webdriver.Capabilities.chrome()).
        build();


        driver.get('http://bing.com');
        var input = driver.findElement(webdriver.By.name('q'));
        input.sendKeys('something');
        input.sendKeys(webdriver.Key.ENTER);

        driver.wait(function() {
            driver.findElement(webdriver.By.className('sb_count')).
                getText().
                then(function(result) {
                  console.log('result: ', result);
                  done();
            });
        }, 8000);


    });
  });
});

For tab use webdriver.Key.TAB

Why don't you use plain html?

<form action="login.php" method="post" name="form1" id="form1">
...
</form>

In your login.php you can then use the header() function.

header("Location: welcome.php");

You're missing a GROUP BY clause:

SELECT news.id, users.username, news.title, news.date, news.body, COUNT(comments.id)
FROM news
LEFT JOIN users
ON news.user_id = users.id
LEFT JOIN comments
ON comments.news_id = news.id
GROUP BY news.id

The left join is correct. If you used an INNER or RIGHT JOIN then you wouldn't get news items that didn't have comments.

Newer versions: (from 8.4 - mentioned in release notes)

TABLE mytablename;

Longer but works on all versions:

SELECT * FROM mytablename;

You may wish to use \x first if it's a wide table, for readability.

For long data:

SELECT * FROM mytable LIMIT 10;

or similar.

For wide data (big rows), in the psql command line client, it's useful to use \x to show the rows in key/value form instead of tabulated, e.g.

 \x
SELECT * FROM mytable LIMIT 10;

Note that in all cases the semicolon at the end is important.

As far as I know, there are three different ways.

Use \n in your print:

print("first line\nSecond line")

Use sep="\n" in print:

print("first line", "second line", sep="\n")

Use triple quotes and a multiline string:

print("""
Line1
Line2
""")

There you go:

<i class="glyphicon glyphicon-search"></i>

More information:

http://getbootstrap.com/components/#glyphicons

Btw. you can use this conversion tool, this will also update the code for the icons:

Since Java 9, you can do this

URL url = new URL("http://www.example.com");
HttpURLConnection connection = (HttpURLConnection)url.openConnection();
connection.setAuthenticator(new Authenticator() {
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication ("USER", "PASS".toCharArray());
    }
});

I know that this question is old but I think my answer would help those who haven't found solution in other answers. So, my problem was that I couldn't display croatian characters in my PDF. Firstly, I used FPDF but, I think, it does not support Unicode. Finally, what solved my problem is tFPDF which is the version of FPDF that supports Unicode. This is the example that worked for me:

require('tFPDF/tfpdf.php');
$pdf = new tFPDF();
$pdf->AddPage();
$pdf->AddFont('DejaVu','','DejaVuSansCondensed.ttf',true);
$pdf->AddFont('DejaVu', 'B', 'DejaVuSansCondensed-Bold.ttf', true);

$pdf->SetFont('DejaVu','',14);

$txt = 'ccžšdCCŽŠÐ';
$pdf->Write(8,$txt);

$pdf->Output();

If you mean you want the pull to overwrite local changes, doing the merge as if the working tree were clean, well, clean the working tree:

git reset --hard
git pull

If there are untracked local files you could use git clean to remove them. Use git clean -f to remove untracked files, -df to remove untracked files and directories, and -xdf to remove untracked or ignored files or directories.

If on the other hand you want to keep the local modifications somehow, you'd use stash to hide them away before pulling, then reapply them afterwards:

git stash
git pull
git stash pop

I don't think it makes any sense to literally ignore the changes, though - half of pull is merge, and it needs to merge the committed versions of content with the versions it fetched.

Any reason for using TortoiseProc instead of just the normal svn command line?

I'd use:

svn checkout svn://somepath@1234 working-directory

(to get revision 1234)

please follow this tutorial: https://www.petrikainulainen.net/programming/maven/creating-code-coverage-reports-for-unit-and-integration-tests-with-the-jacoco-maven-plugin/

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.15</version>
<configuration>
    <!-- Sets the VM argument line used when unit tests are run. -->
    <argLine>${surefireArgLine}</argLine>
    <!-- Skips unit tests if the value of skip.unit.tests property is true -->
    <skipTests>${skip.unit.tests}</skipTests>
    <!-- Excludes integration tests when unit tests are run. -->
    <excludes>
        <exclude>**/IT*.java</exclude>
    </excludes>
</configuration>

To get the text content

document.getElementById ( "tdid" ).innerText

or

document.getElementById ( "tdid" ).textContent

var tdElem = document.getElementById ( "tdid" );
var tdText = tdElem.innerText | tdElem.textContent;

If you can use jQuery then you can use

$("#tdid").text();

To get the HTML content

var tdElem = document.getElementById ( "tdid" );
var tdText = tdElem.innerHTML;

in jQuery

$("#tdid").html();

I'm adding this as I haven't seen it in any of the other answers and it might be useful for someone struggling with something similar. The globals() function returns a mutable global symbol dictionary where you can "magically" make data available for the rest of your code. For example:

from pickle import load
def loaditem(name):
    with open(r"C:\pickle\file\location"+"\{}.dat".format(name), "rb") as openfile:
        globals()[name] = load(openfile)
    return True

and

from pickle import dump
def dumpfile(name):
    with open(name+".dat", "wb") as outfile:
        dump(globals()[name], outfile)
    return True

Will just let you dump/load variables out of and into the global namespace. Super convenient, no muss, no fuss. Pretty sure it's Python 3 only.

agf's bytearray solution is workable, but if you find yourself needing to build up more complicated packets using datatypes other than bytes, you can try struct.pack(). http://docs.python.org/release/3.1.3/library/struct.html

In this scenario, the outer <div> has a width and height of 90%. The inner div> has a width of 100% of its parent. Both scale when re-sizing the window.

HTML

<div>
    <div>Hello there</div>
</div>

CSS

html, body {
    width: 100%;
    height: 100%;
}

body > div {
    width: 90%;
    height: 100%;
    background: green;
}

body > div > div {
    width: 100%;
    background: red;
}

Demo

Try before buy

Another way would be adding __getitem__, __setitem__ function

def __getitem__(self, key):
    return getattr(self, key)

You can use self[key] to access now.

Use a slice, not an arrray. Just create it using

reg := []string {"a","b","c"}

An alternative would have been to convert your array to a slice when joining :

fmt.Println(strings.Join(reg[:],","))

Read the Go blog about the differences between slices and arrays.

Update : In angular 7, they are the same as 6

In angular 6

the complete answer found in live example

  /** POST: add a new hero to the database */
  addHero (hero: Hero): Observable<Hero> {
 return this.http.post<Hero>(this.heroesUrl, hero, httpOptions)
  .pipe(
    catchError(this.handleError('addHero', hero))
  );
}
  /** GET heroes from the server */
 getHeroes (): Observable<Hero[]> {
return this.http.get<Hero[]>(this.heroesUrl)
  .pipe(
    catchError(this.handleError('getHeroes', []))
  );
}

it's because of pipeable/lettable operators which now angular is able to use tree-shakable and remove unused imports and optimize the app

some rxjs functions are changed

do -> tap
catch -> catchError
switch -> switchAll
finally -> finalize

more in MIGRATION

and Import paths

For JavaScript developers, the general rule is as follows:

rxjs: Creation methods, types, schedulers and utilities

import { Observable, Subject, asapScheduler, pipe, of, from, interval, merge, fromEvent } from 'rxjs';

rxjs/operators: All pipeable operators:

import { map, filter, scan } from 'rxjs/operators';

rxjs/webSocket: The web socket subject implementation

import { webSocket } from 'rxjs/webSocket';

rxjs/ajax: The Rx ajax implementation

import { ajax } from 'rxjs/ajax';

rxjs/testing: The testing utilities

import { TestScheduler } from 'rxjs/testing';

and for backward compatability you can use rxjs-compat

Inf is infinity, it's a "bigger than all the other numbers" number. Try subtracting anything you want from it, it doesn't get any smaller. All numbers are < Inf. -Inf is similar, but smaller than everything.

NaN means not-a-number. If you try to do a computation that just doesn't make sense, you get NaN. Inf - Inf is one such computation. Usually NaN is used to just mean that some data is missing.

import datetime

def print_time():
    parser = datetime.datetime.now() 
    return parser.strftime("%d-%m-%Y %H:%M:%S")

print(print_time())

# Output>
# 03-02-2021 22:39:28

Make sure that there is no project Deploy in server. If so ,please right click on server ,select add and remove ,Then remove all project. After this you can double click on server and the option will be enabled for you.

I faced this same problem, and I came up with a solution that didn't invole using the ProgressDialog and I get faster results.

What I did was create a layout that has a ProgressBar in it.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ProgressBar
    android:id="@+id/progressImage"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    />
</RelativeLayout>

Then in the onCreate method do the following

public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.progress);
}

Then do the long task in a thread, and when that's finished have a Runnable set the content view to the real layout you want to use for this activity.

For example:

mHandler.post(new Runnable(){

public void run() {
        setContentView(R.layout.my_layout);
    } 
});

This is what I did, and I've found that it runs faster than showing the ProgressDialog and it's less intrusive and has a better look in my opinion.

However, if you're wanting to use the ProgressDialog, then this answer isn't for you.

for simple Scroll, use following style

height: 200px; overflow: scroll;

and use this style class which div or section you want to show scroll

Make sure you have the identifier in the attributes filled out with your cell identifier

You need to use the readLine() method in class BufferedReader. Create a new object from that class and operate this method on him and save it to a string.

BufferReader Javadoc

The accepted answer - git diff --name-only <notMainDev> $(git merge-base <notMainDev> <mainDev>) - is very close, but I noticed that it got the status wrong for deletions. I added a file in a branch, and yet this command (using --name-status) gave the file I deleted "A" status and the file I added "D" status.

I had to use this command instead:

git diff --name-only $(git merge-base <notMainDev> <mainDev>)

Ids are meant to be unique, and never use an id that starts with a number, use data-attributes instead to set the target like so :

<div id="searchbycharacter">
    <a class="searchbychar" href="#" data-target="numeric">0-9 |</a> 
    <a class="searchbychar" href="#" data-target="A"> A |</a> 
    <a class="searchbychar" href="#" data-target="B"> B |</a> 
    <a class="searchbychar" href="#" data-target="C"> C |</a> 
    ... Untill Z
</div>

As for the jquery :

$(document).on('click','.searchbychar', function(event) {
    event.preventDefault();
    var target = "#" + this.getAttribute('data-target');
    $('html, body').animate({
        scrollTop: $(target).offset().top
    }, 2000);
});

This worked for me.

git reset --hard ORIG_HEAD 

Undo a merge or pull:

$ git pull                         (1)
Auto-merging nitfol
CONFLICT (content): Merge conflict in nitfol
Automatic merge failed; fix conflicts and then commit the result.
$ git reset --hard                 (2)
$ git pull . topic/branch          (3)
Updating from 41223... to 13134...
Fast-forward
$ git reset --hard ORIG_HEAD       (4)

Checkout this: HEAD and ORIG_HEAD in Git for more.

What about this:

new ImageBrush(new BitmapImage(new Uri(BaseUriHelper.GetBaseUri(this), "Images/icon.png")))

or alternatively, this:

this.Background = new ImageBrush(new BitmapImage(new Uri(@"pack://application:,,,/myapp;component/Images/icon.png")));

I had the same problem with Mqtt broker called vernemq.but solved it by adding the following.

1. $ sudo vmq-admin listener show

to show the list o allowed ips and ports for vernemq

1. $ sudo vmq-admin listener start port=1885 -a 0.0.0.0 --mountpoint /appname --nr_of_acceptors=10 --max_connections=20000

to add any ip and your new port. now u should be able to connect without any problem.

Hope it solves your problem.

204:

No Content.” This code means that the server has successfully processed the request, but is not going to return any content

https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/204

Run apt-get install build-essential on your system.

This package depends on other packages considered to be essential for builds and will install them. If you find you have to build packages, this can be helpful to avoid piecemeal resolution of dependencies.

See this page for more info.

$ variables are only set to matches into the block:

"Z_sdsd: sdsd".gsub(/^(Z_.*): .*/) { "#{ $1.strip }" }

This is also the only way to call a method on the match. This will not change the match, only strip "\1" (leaving it unchanged):

"Z_sdsd: sdsd".gsub(/^(Z_.*): .*/, "\\1".strip)

Let's say you have 25 objects and want one process to handle any one objects click event. You could write 25 delegates or use a loop to handle the click event.

public form1()
{
    foreach (Panel pl  in Container.Components)
    {
        pl.Click += Panel_Click;
    }
}

private void Panel_Click(object sender, EventArgs e)
{
    // Process the panel clicks here
    int index = Panels.FindIndex(a => a == sender);
    ...
}

Use mongoexport/mongoimport to dump/restore a collection:

Export JSON File:

mongoexport --db <database-name> --collection <collection-name> --out output.json

Import JSON File:

mongoimport --db <database-name> --collection <collection-name> --file input.json

WARNING mongoimport and mongoexport do not reliably preserve all rich BSON data types because JSON can only represent a subset of the types supported by BSON. As a result, data exported or imported with these tools may lose some measure of fidelity.

Also, http://bsonspec.org/

BSON is designed to be fast to encode and decode. For example, integers are stored as 32 (or 64) bit integers, so they don't need to be parsed to and from text. This uses more space than JSON for small integers, but is much faster to parse.

In addition to compactness, BSON adds additional data types unavailable in JSON, notably the BinData and Date data types.

Another option is using Google Guava's com.google.common.base.CaseFormat

George Hawkins left a comment with this example of usage:

CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, "THIS_IS_AN_EXAMPLE_STRING");

The information schema isn't the place to treat these things (see DDL database commands).

When you add a comment you need to change the table structure (table comments).

From MySQL 5.6 documentation:

INFORMATION_SCHEMA is a database within each MySQL instance, the place that stores information about all the other databases that the MySQL server maintains. The INFORMATION_SCHEMA database contains several read-only tables. They are actually views, not base tables, so there are no files associated with them, and you cannot set triggers on them. Also, there is no database directory with that name.

Although you can select INFORMATION_SCHEMA as the default database with a USE statement, you can only read the contents of tables, not perform INSERT, UPDATE, or DELETE operations on them.

Chapter 21 INFORMATION_SCHEMA Tables

SELECT * FROM myTable WHERE sign (col1)!=0

ofcourse sign(0) is zero, but then you could restrict you query to...

SELECT * FROM myTable WHERE sign (col1)!=0 or col1=0

UPDATE: This is not 100% reliable, because "1abc" would return sign of 1, but "ab1c" would return zero... so this could only work for text that does not begins with numbers.

WITH UPD AS (UPDATE TEST_TABLE SET SOME_DATA = 'Joe' WHERE ID = 2 
RETURNING ID),
INS AS (SELECT '2', 'Joe' WHERE NOT EXISTS (SELECT * FROM UPD))
INSERT INTO TEST_TABLE(ID, SOME_DATA) SELECT * FROM INS

Tested on Postgresql 9.3

You can use GCD to dispatch the scroll into the next iteration of main run loop in viewDidLoad to achieve this behavior. The scroll will be performed before the collection view is showed on screen, so there will be no flashing.

- (void)viewDidLoad {
    dispatch_async (dispatch_get_main_queue (), ^{
        NSIndexPath *indexPath = YOUR_DESIRED_INDEXPATH;
        [self.collectionView scrollToItemAtIndexPath:indexPath atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:NO];
    });
}

Try This Code: It may help you

<html>
    <head>
<style>
    body
        {
            background:url('images/top-left.jpg') no-repeat center center fixed;
            background-size: cover;
            -webkit-background-size: cover;
            -moz-background-size: cover;
            -o-background-size: cover;
            margin: 0;
            padding: 0;
        }

    </style>
</head>
    <body>
    <form action="LoginCheck.jsp"method="post">
    </br>Username:<input type="text" name="username">
    </br>Password:<input type="password" name="password">
    </br>
    <input type="submit" value="Submit">
    </form>
    </center> 
    </body>


</html>

There are a number of ways that you could do this, but the fastest might be to use IndexOf to find the index position of the letter you want to replace and then substring out the text before and after what you want to replace.

Use the replace() method on string:

>>> stuff = "Big and small"
>>> stuff.replace( " and ", "/" )
'Big/small'

try this, it will work

sudo -u hdfs hdfs dfsadmin -safemode leave

Using the map() and reduce() built-in functions

def file_to_list(file):
     #stuff to parse file to a list
     return list

files = [...list of files...]

L = map(file_to_list, files)

flat_L = reduce(lambda x,y:x+y, L)

Minimal "for looping" and elegant coding pattern :)

Similar to Luke's answer, but with GET.

Place this php-code in a php-page, ex. getpage.php:

<?php
$_SESSION['size'] = $_GET['size'];
?>

Then call it with a jQuery script like this:

$.get( "/getpage.php?size=1");

Agree with Federico. In some cases you may run into problems using POST, although not sure if it can be browser related.

If your element is not directly on you scene go back to Parent to remove it

  function removeEntity(object) {
        var selectedObject = scene.getObjectByName(object.name);
        selectedObject.parent.remove( selectedObject );
    }

IMHO Mark Elliot's solution's best one for this problem. If you need to make more complex comparison operations between array elements AND you're on PHP 5.3, you might also think about something like the following:

<?php

// First Array To Compare
$a1 = array('foo','bar','c');

// Target Array
$b1 = array('foo','bar');


// Evaluation Function - we pass guard and target array
$b=true;
$test = function($x) use (&$b, $b1) {
        if (!in_array($x,$b1)) {
                $b=false;
        }
};


// Actual Test on array (can be repeated with others, but guard 
// needs to be initialized again, due to by reference assignment above)
array_walk($a1, $test);
var_dump($b);

This relies on a closure; comparison function can become much more powerful. Good luck!

The line

when(someObject.doSomething(argumentCaptor.capture())).thenReturn(true);

would do the same as

when(someObject.doSomething(Matchers.any())).thenReturn(true);

So, using argumentCaptor.capture() when stubbing has no added value. Using Matchers.any() shows better what really happens and therefor is better for readability. With argumentCaptor.capture(), you can't read what arguments are really matched. And instead of using any(), you can use more specific matchers when you have more information (class of the expected argument), to improve your test.

And another problem: If using argumentCaptor.capture() when stubbing it becomes unclear how many values you should expect to be captured after verification. We want to capture a value during verification, not during stubbing because at that point there is no value to capture yet. So what does the argument captors capture method capture during stubbing? It capture anything because there is nothing to be captured yet. I consider it to be undefined behavior and I don't want to use undefined behavior.

I know I'm uprising a very old topic, but after a couple of hours struggling with this very problem and not finding a solution anywhere else, I think this is a good place to put an answer.

We have some Build Servers WindowsXP based and found this very problem: svn command line client is not caching auth credentials.

We finally found out that we are using Cygwin's svn client! not a "native" Windows. So... this client stores all the auth credentials in /home/<user>/.subversion/auth

This /home directory in Cygwin, in our installation is in c:\cygwin\home. AND: the problem was that the Windows user that is running svn did never ever "logged in" in Cygwin, and so there was no /home/<user> directory.

A simple "bash -ls" from a Windows command terminal created the directory, and after the first access to our SVN server with interactive prompting for access credentials, alás, they got cached.

So if you are using Cygwin's svn client, be sure to have a "home" directory created for the local Windows user.

How to fade borders with CSS:

<div style="border-style:solid;border-image:linear-gradient(red, transparent) 1;border-bottom:0;">Text</div>

Please excuse the inline styles for the sake of demonstration. The 1 property for the border-image is border-image-slice, and in this case defines the border as a single continuous region.

Source: Gradient Borders

This works fine for me:

while True:
   answer = input('Do you want to continue?:')
   if answer.lower().startswith("y"):
      print("ok, carry on then")
   elif answer.lower().startswith("n"):
      print("sayonara, Robocop")
      exit()

edit: use input in python 3.2 instead of raw_input

Yup...since Java 5: http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html

Use the TABLOCKX lock hint for your transaction. See this article for more information on locking.

I find it more useful to use mousedown-event instead of click-event. The click-event doesn't work if the user clicks on other elements on the page with click-events. In combination with jQuery's one() method it looks like this:

$("ul.opMenu li").click(function(event){

   //event.stopPropagation(); not required any more
   $('#MainOptSubMenu').show();

   // add one mousedown event to html
   $('html').one('mousedown', function(){
       $('#MainOptSubMenu').hide();
   });
});

// mousedown must not be triggered inside menu
$("ul.opMenu li").bind('mousedown', function(evt){
    evt.stopPropagation();
});

The classes of problem that are well suited for a mapreduce style solution are problems of aggregation. Of extracting data from a dataset. In C#, one could take advantage of LINQ to program in this style.

From the following article: http://codecube.net/2009/02/mapreduce-in-c-using-linq/

the GroupBy method is acting as the map, while the Select method does the job of reducing the intermediate results into the final list of results.

var wordOccurrences = words
                .GroupBy(w => w)
                .Select(intermediate => new
                {
                    Word = intermediate.Key,
                    Frequency = intermediate.Sum(w => 1)
                })
                .Where(w => w.Frequency > 10)
                .OrderBy(w => w.Frequency);

For the distributed portion, you could check out DryadLINQ: http://research.microsoft.com/en-us/projects/dryadlinq/default.aspx

Guessing from the information I have, you're not actually compiling the program, but trying to run it. That is, ALL_BUILD is set as your startup project. (It should be in a bold font, unlike the other projects in your solution) If you then try to run/debug, you will get the error you describe, because there is simply nothing to run.

The project is most likely generated via CMAKE and included in your Visual Studio solution. Set any of the projects that do generate a .exe as the startup project (by right-clicking on the project and selecting "set as startup project") and you will most likely will be able to start those from within Visual Studio.

First, you don't need to define both of those locations. Just use classpath:config/properties/database.properties. In a WAR, WEB-INF/classes is a classpath entry, so it will work just fine.

After that, I think what you mean is you want to use Spring's schema-based configuration to create a configurer. That would go like this:

<context:property-placeholder location="classpath:config/properties/database.properties"/>

Note that you don't need to "ignoreResourceNotFound" anymore. If you need to define the properties separately using util:properties:

<context:property-placeholder properties-ref="jdbcProperties" ignore-resource-not-found="true"/>

There's usually not any reason to define them separately, though.

Try this that works for me:

$('#bar').mousedown();

The ng-dirty class tells you that the form has been modified by the user, whereas the ng-pristine class tells you that the form has not been modified by the user. So ng-dirty and ng-pristine are two sides of the same story.

The classes are set on any field, while the form has two properties, $dirty and $pristine.

You can use the $scope.form.$setPristine() function to reset a form to pristine state (please note that this is an AngularJS 1.1.x feature).

If you want a $scope.form.$setPristine()-ish behavior even in 1.0.x branch of AngularJS, you need to roll your own solution (some pretty good ones can be found here). Basically, this means iterating over all form fields and setting their $dirty flag to false.

Hope this helps.

I've had this exact same problem a few days ago. I eventually managed to solve it. I'm not quite sure how, but I'll tell you what I did anyway. Maybe it'll help you.

I started by downloading RVM. If you aren't using it yet, I highly recommend doing so. It basically creates a sandbox for a new separate installation of Ruby, RoR and RubyGems. In fact, you can have multiple installations simultaneously and instantly switch to one other. It works like a charm.

Why is this useful? Because you shouldn't mess with the default Ruby installation in OS X. The system depends on it. It's best to just leave the default Ruby and RoR installation alone and create a new one using RVM that you can use for your own development.

Once I created my separate Ruby installation, I just installed RoR, RubyGems and mysql, and it worked. For the exact steps I took, see my question: Installing Rails, MySQL, etc. everything goes wrong

Again: I don't know for certain this will solve your problem. But it certainly did the trick for me, and in any case using RVM is highly recommendable.

Another option (which is useful e.g. for scientific purposes when you need to work with segmentation masks) is simply apply a threshold:

#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""Binarize (make it black and white) an image with Python."""

from PIL import Image
from scipy.misc import imsave
import numpy


def binarize_image(img_path, target_path, threshold):
    """Binarize an image."""
    image_file = Image.open(img_path)
    image = image_file.convert('L')  # convert image to monochrome
    image = numpy.array(image)
    image = binarize_array(image, threshold)
    imsave(target_path, image)


def binarize_array(numpy_array, threshold=200):
    """Binarize a numpy array."""
    for i in range(len(numpy_array)):
        for j in range(len(numpy_array[0])):
            if numpy_array[i][j] > threshold:
                numpy_array[i][j] = 255
            else:
                numpy_array[i][j] = 0
    return numpy_array


def get_parser():
    """Get parser object for script xy.py."""
    from argparse import ArgumentParser, ArgumentDefaultsHelpFormatter
    parser = ArgumentParser(description=__doc__,
                            formatter_class=ArgumentDefaultsHelpFormatter)
    parser.add_argument("-i", "--input",
                        dest="input",
                        help="read this file",
                        metavar="FILE",
                        required=True)
    parser.add_argument("-o", "--output",
                        dest="output",
                        help="write binarized file hre",
                        metavar="FILE",
                        required=True)
    parser.add_argument("--threshold",
                        dest="threshold",
                        default=200,
                        type=int,
                        help="Threshold when to show white")
    return parser


if __name__ == "__main__":
    args = get_parser().parse_args()
    binarize_image(args.input, args.output, args.threshold)

It looks like this for ./binarize.py -i convert_image.png -o result_bin.png --threshold 200:

Try a generic:

public static T CastTo<T>(this dynamic obj, bool safeCast) where T:class
{
   try
   {
      return (T)obj;
   }
   catch
   {
      if(safeCast) return null;
      else throw;
   }
}

This is in extension method format, so its usage would be as if it were a member of dynamic objects:

dynamic myDynamic = new Something();
var typedObject = myDynamic.CastTo<Something>(false);

EDIT: Grr, didn't see that. Yes, you could reflectively close the generic, and it wouldn't be hard to hide in a non-generic extension method:

public static dynamic DynamicCastTo(this dynamic obj, Type castTo, bool safeCast)
{
   MethodInfo castMethod = this.GetType().GetMethod("CastTo").MakeGenericMethod(castTo);
   return castMethod.Invoke(null, new object[] { obj, safeCast });
}

I'm just not sure what you'd get out of this. Basically you're taking a dynamic, forcing a cast to a reflected type, then stuffing it back in a dynamic. Maybe you're right, I shouldn't ask. But, this'll probably do what you want. Basically when you go into dynamic-land, you lose the need to perform most casting operations as you can discover what an object is and does through reflective methods or trial and error, so there aren't many elegant ways to do this.

9007199254740992 (that's 9,007,199,254,740,992) with no guarantees :)

Program

#include <math.h>
#include <stdio.h>

int main(void) {
  double dbl = 0; /* I started with 9007199254000000, a little less than 2^53 */
  while (dbl + 1 != dbl) dbl++;
  printf("%.0f\n", dbl - 1);
  printf("%.0f\n", dbl);
  printf("%.0f\n", dbl + 1);
  return 0;
}

Result

9007199254740991
9007199254740992
9007199254740992

Add this to your button's click listener:

  Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
    try {
        intent.setData(Uri.parse(url));
        startActivity(intent);
    } catch (ActivityNotFoundException exception) {
        Toast.makeText(getContext(), "Error text", Toast.LENGTH_SHORT).show();
    }

If you have a website url as a variable instead of hardcoded string then don't forget to handle an ActivityNotFoundException and show error. Or you may receive invalid url and app will simply crash. (Pass random string instead of url variable and see for youself )

If you want to make a diff against current branch you can ommit it and use:

git diff $BRANCH -- path/to/file

this way it will diff from current branch to the referenced branch ($BRANCH).

If you use the solution from @jorge and find that everything is on the same line, make sure you enclose the variable in quotes:

echo $__usage

will print everything on one line whereas

echo "$__usage"

will retain the newlines.

If you've created more than one emulators or if you have an Android device plugged in, adb will complain with

error: more than one device and emulator

adb help is not extremely clear on what to do:

-d                        - directs command to the only connected USB device...
-e                        - directs command to the only running emulator...
-s <serial number>        ...
-p <product name or path> ...

The flag you decide to use has to come before the actual adb command:

adb -e install path/to/app.apk

1. 1. A HashSet holds a set of objects, but in a way that it allows you to easily and quickly determine whether an object is already in the set or not. It does so by internally managing an array and storing the object using an index which is calculated from the hashcode of the object. Take a look here

   2. HashSet is an unordered collection containing unique elements. It has the standard collection operations Add, Remove, Contains, but since it uses a hash-based implementation, these operations are O(1). (As opposed to List for example, which is O(n) for Contains and Remove.) HashSet also provides standard set operations such as union, intersection, and symmetric difference. Take a look here

2. There are different implementations of Sets. Some make insertion and lookup operations super fast by hashing elements. However, that means that the order in which the elements were added is lost. Other implementations preserve the added order at the cost of slower running times.

The HashSet class in C# goes for the first approach, thus not preserving the order of elements. It is much faster than a regular List. Some basic benchmarks showed that HashSet is decently faster when dealing with primary types (int, double, bool, etc.). It is a lot faster when working with class objects. So that point is that HashSet is fast.

The only catch of HashSet is that there is no access by indices. To access elements you can either use an enumerator or use the built-in function to convert the HashSet into a List and iterate through that. Take a look here

I guess you have the wrong version of scikit-learn, a similar situation was described here on GitHub. Previously (before v0.18), train_test_split was located in the cross_validation module:

from sklearn.cross_validation import train_test_split

However, now it's in the model_selection module:

from sklearn.model_selection import train_test_split

so you'll need the newest version.

To upgrade to at least version 0.18, do:

pip install -U scikit-learn

(Or pip3, depending on your version of Python). If you've installed it in a different way, make sure you use another method to update, for example when using Anaconda.

While I agree tables shouldn't be used for design layouts contrary to popular belief they do pass validation. i.e. the table tag is not deprecated. The best way to align radio buttons is using the vertical align middle CSS with margins adjusted on the input elements.

It is compile time error. You can get it in a lot of case:

• .xcodeproj was opened instead of .xcworkspace

• module.modulemap

Objective-C, Library/Framework Target.

If you host your own library or framework please make sure that it has module.modulemap file and the headers from it are located in Build Phases -> Headers section

Framework Search Paths

consumer -> framework

If you try to build an app without setting the Framework Search Paths. After setting the Framework Search Path to point to the framework resources, Xcode will build the project successfully. However, when you run the app in the Simulator, there is a crash for reason: Image not found^about

It can be an absolute path or a relative path like $(SRCROOT) or $(SRCROOT)/.. for workspace

Import Paths

Swift consumer -> Swift static library

The Import Paths should point to .swiftmodule

Linked Frameworks and Libraries

consumer -> static framework

Add a Static framework to this section

Find Implicit Dependencies

When you have an implicit dependency but Find Implicit Dependencies was turned off

CocoaPods

pod deintegrate
pod install

UI Test Bundle

for App Target where used additional dependency from CocoaPods. To solve it use inherit!^[About] in Podfile

[Recursive path]

You can't use PHP to prevent a timeout issued by nginx.

To configure nginx to allow more time see the proxy_read_timeout directive.

If the below step not work:

Replaced my Spring Boot 1.4.2.RELEASE to 1.5.10.RELEASE

• Right click on project and -> Maven-> Download Resources
• right click on project -> Maven-> Update project

The reason for this error might be multiple version of the same is downloaded into your maven local repository folder.

So follow below steps to clear all existing repository jars and download all from beginning based on dependencies defined in your POM.xml..

1. Go to build path . Check Maven Repository in the libraries added section.
   
2. Choose any jar and mousehover .. it will show the local repository location. generally it is : user/.m2/repository/....
   
3. Go to the location . and remove the repository folder contains.
   
4. Now right click on your project .. do Maven --> maven update.
   This will solve your dependencies problem . as Maven will try to download all the items again from repository and build the project.

You can also do like below.

put below script code in header tag

<script type="text/javascript" language="text/javascript"> 
function handleBrowserCloseButton(event) { 
   if (($(window).width() - window.event.clientX) < 35 && window.event.clientY < 0) 
    {
      //Call method by Ajax call
      alert('Browser close button clicked');    
    } 
} 
</script>

call above function from body tag like below

<body onbeforeunload="handleBrowserCloseButton(event);">

Thank you

Your count never equals the value 100 so your loop will continue until that is true

Replace your while clause with

def gukan(count):
    while count < 100:
      print(count)
      count=count+3;
gukan(0)

and this will fix your problem, the program is executing correctly given the conditions you have given it.

Another interesting solution is PhantomJS. It's a headless WebKit scriptable with JavaScript or CoffeeScript.

One of the use case is screen capture : you can programmatically capture web contents, including SVG and Canvas and/or Create web site screenshots with thumbnail preview.

The best entry point is the screen capture wiki page.

Here is a good example for polar clock (from RaphaelJS):

>phantomjs rasterize.js http://raphaeljs.com/polar-clock.html clock.png

Do you want to render a page to a PDF ?

> phantomjs rasterize.js 'http://en.wikipedia.org/w/index.php?title=Jakarta&printable=yes' jakarta.pdf

If you want to insert all the columns then

insert into def select * from abc;

here the number of columns in def should be equal to abc.

if you want to insert the subsets of columns then

insert into def (col1,col2, col3 ) select scol1,scol2,scol3 from abc; 

if you want to insert some hardcorded values then

insert into def (col1, col2,col3) select 'hardcoded value',scol2, scol3 from abc;

NSString* myNewString = [NSString stringWithFormat:@"%d", myInt];

Your question makes an assertion, that "Writing exception-safe code is very hard". I will answer your questions first, and then, answer the hidden question behind them.

Answering questions

Do you really write exception safe code?

Of course, I do.

This is the reason Java lost a lot of its appeal to me as a C++ programmer (lack of RAII semantics), but I am digressing: This is a C++ question.

It is, in fact, necessary when you need to work with STL or Boost code. For example, C++ threads (boost::thread or std::thread) will throw an exception to exit gracefully.

Are you sure your last "production ready" code is exception safe?

Can you even be sure, that it is?

Writing exception-safe code is like writing bug-free code.

You can't be 100% sure your code is exception safe. But then, you strive for it, using well-known patterns, and avoiding well-known anti-patterns.

Do you know and/or actually use alternatives that work?

There are no viable alternatives in C++ (i.e. you'll need to revert back to C and avoid C++ libraries, as well as external surprises like Windows SEH).

Writing exception safe code

To write exception safe code, you must know first what level of exception safety each instruction you write is.

For example, a new can throw an exception, but assigning a built-in (e.g. an int, or a pointer) won't fail. A swap will never fail (don't ever write a throwing swap), a std::list::push_back can throw...

Exception guarantee

The first thing to understand is that you must be able to evaluate the exception guarantee offered by all of your functions:

1. none: Your code should never offer that. This code will leak everything, and break down at the very first exception thrown.
2. basic: This is the guarantee you must at the very least offer, that is, if an exception is thrown, no resources are leaked, and all objects are still whole
3. strong: The processing will either succeed, or throw an exception, but if it throws, then the data will be in the same state as if the processing had not started at all (this gives a transactional power to C++)
4. nothrow/nofail: The processing will succeed.

Example of code

The following code seems like correct C++, but in truth, offers the "none" guarantee, and thus, it is not correct:

void doSomething(T & t)
{
   if(std::numeric_limits<int>::max() > t.integer)  // 1.   nothrow/nofail
      t.integer += 1 ;                              // 1'.  nothrow/nofail
   X * x = new X() ;                // 2. basic : can throw with new and X constructor
   t.list.push_back(x) ;            // 3. strong : can throw
   x->doSomethingThatCanThrow() ;   // 4. basic : can throw
}

I write all my code with this kind of analysis in mind.

The lowest guarantee offered is basic, but then, the ordering of each instruction makes the whole function "none", because if 3. throws, x will leak.

The first thing to do would be to make the function "basic", that is putting x in a smart pointer until it is safely owned by the list:

void doSomething(T & t)
{
   if(std::numeric_limits<int>::max() > t.integer)  // 1.   nothrow/nofail
      t.integer += 1 ;                              // 1'.  nothrow/nofail
   std::auto_ptr<X> x(new X()) ;    // 2.  basic : can throw with new and X constructor
   X * px = x.get() ;               // 2'. nothrow/nofail
   t.list.push_back(px) ;           // 3.  strong : can throw
   x.release() ;                    // 3'. nothrow/nofail
   px->doSomethingThatCanThrow() ;  // 4.  basic : can throw
}

Now, our code offers a "basic" guarantee. Nothing will leak, and all objects will be in a correct state. But we could offer more, that is, the strong guarantee. This is where it can become costly, and this is why not all C++ code is strong. Let's try it:

void doSomething(T & t)
{
   // we create "x"
   std::auto_ptr<X> x(new X()) ;    // 1. basic : can throw with new and X constructor
   X * px = x.get() ;               // 2. nothrow/nofail
   px->doSomethingThatCanThrow() ;  // 3. basic : can throw

   // we copy the original container to avoid changing it
   T t2(t) ;                        // 4. strong : can throw with T copy-constructor

   // we put "x" in the copied container
   t2.list.push_back(px) ;          // 5. strong : can throw
   x.release() ;                    // 6. nothrow/nofail
   if(std::numeric_limits<int>::max() > t2.integer)  // 7.   nothrow/nofail
      t2.integer += 1 ;                              // 7'.  nothrow/nofail

   // we swap both containers
   t.swap(t2) ;                     // 8. nothrow/nofail
}

We re-ordered the operations, first creating and setting X to its right value. If any operation fails, then t is not modified, so, operation 1 to 3 can be considered "strong": If something throws, t is not modified, and X will not leak because it's owned by the smart pointer.

Then, we create a copy t2 of t, and work on this copy from operation 4 to 7. If something throws, t2 is modified, but then, t is still the original. We still offer the strong guarantee.

Then, we swap t and t2. Swap operations should be nothrow in C++, so let's hope the swap you wrote for T is nothrow (if it isn't, rewrite it so it is nothrow).

So, if we reach the end of the function, everything succeeded (No need of a return type) and t has its excepted value. If it fails, then t has still its original value.

Now, offering the strong guarantee could be quite costly, so don't strive to offer the strong guarantee to all your code, but if you can do it without a cost (and C++ inlining and other optimization could make all the code above costless), then do it. The function user will thank you for it.

Conclusion

It takes some habit to write exception-safe code. You'll need to evaluate the guarantee offered by each instruction you'll use, and then, you'll need to evaluate the guarantee offered by a list of instructions.

Of course, the C++ compiler won't back up the guarantee (in my code, I offer the guarantee as a @warning doxygen tag), which is kinda sad, but it should not stop you from trying to write exception-safe code.

Normal failure vs. bug

How can a programmer guarantee that a no-fail function will always succeed? After all, the function could have a bug.

This is true. The exception guarantees are supposed to be offered by bug-free code. But then, in any language, calling a function supposes the function is bug-free. No sane code protects itself against the possibility of it having a bug. Write code the best you can, and then, offer the guarantee with the supposition it is bug-free. And if there is a bug, correct it.

Exceptions are for exceptional processing failure, not for code bugs.

Last words

Now, the question is "Is this worth it ?".

Of course, it is. Having a "nothrow/no-fail" function knowing that the function won't fail is a great boon. The same can be said for a "strong" function, which enables you to write code with transactional semantics, like databases, with commit/rollback features, the commit being the normal execution of the code, throwing exceptions being the rollback.

Then, the "basic" is the very least guarantee you should offer. C++ is a very strong language there, with its scopes, enabling you to avoid any resource leaks (something a garbage collector would find it difficult to offer for the database, connection or file handles).

So, as far as I see it, it is worth it.

Edit 2010-01-29: About non-throwing swap

nobar made a comment that I believe, is quite relevant, because it is part of "how do you write exception safe code":

• [me] A swap will never fail (don't even write a throwing swap)
• [nobar] This is a good recommendation for custom-written swap() functions. It should be noted, however, that std::swap() can fail based on the operations that it uses internally

the default std::swap will make copies and assignments, which, for some objects, can throw. Thus, the default swap could throw, either used for your classes or even for STL classes. As far as the C++ standard is concerned, the swap operation for vector, deque, and list won't throw, whereas it could for map if the comparison functor can throw on copy construction (See The C++ Programming Language, Special Edition, appendix E, E.4.3.Swap).

Looking at Visual C++ 2008 implementation of the vector's swap, the vector's swap won't throw if the two vectors have the same allocator (i.e., the normal case), but will make copies if they have different allocators. And thus, I assume it could throw in this last case.

So, the original text still holds: Don't ever write a throwing swap, but nobar's comment must be remembered: Be sure the objects you're swapping have a non-throwing swap.

Edit 2011-11-06: Interesting article

Dave Abrahams, who gave us the basic/strong/nothrow guarantees, described in an article his experience about making the STL exception safe:

http://www.boost.org/community/exception_safety.html

Look at the 7th point (Automated testing for exception-safety), where he relies on automated unit testing to make sure every case is tested. I guess this part is an excellent answer to the question author's "Can you even be sure, that it is?".

Edit 2013-05-31: Comment from dionadar

t.integer += 1; is without the guarantee that overflow will not happen NOT exception safe, and in fact may technically invoke UB! (Signed overflow is UB: C++11 5/4 "If during the evaluation of an expression, the result is not mathematically defined or not in the range of representable values for its type, the behavior is undefined.") Note that unsigned integer do not overflow, but do their computations in an equivalence class modulo 2^#bits.

Dionadar is referring to the following line, which indeed has undefined behaviour.

   t.integer += 1 ;                 // 1. nothrow/nofail

The solution here is to verify if the integer is already at its max value (using std::numeric_limits<T>::max()) before doing the addition.

My error would go in the "Normal failure vs. bug" section, that is, a bug. It doesn't invalidate the reasoning, and it does not mean the exception-safe code is useless because impossible to attain. You can't protect yourself against the computer switching off, or compiler bugs, or even your bugs, or other errors. You can't attain perfection, but you can try to get as near as possible.

I corrected the code with Dionadar's comment in mind.

One more way without explicit route:

async reload(url: string): Promise<boolean> {
  await this.router.navigateByUrl('.', { skipLocationChange: true });
  return this.router.navigateByUrl(url);
}

You will need to change the configure port of either Apache or Nginx. After you do this you will need to restart the reconfigured servers, using the 'service' command you used.

Apache

Edit

sudo subl /etc/apache2/ports.conf 

and change the 80 on the following line to something different :

Listen 80

If you just change the port or add more ports here, you will likely also have to change the VirtualHost statement in

sudo subl /etc/apache2/sites-enabled/000-default.conf

and change the 80 on the following line to something different :

<VirtualHost *:80>

then restart by :

sudo service apache2 restart

Nginx

Edit

/etc/nginx/sites-enabled/default

and change the 80 on the following line :

listen 80;

then restart by :

sudo service nginx restart

You are using a local path. Is that really what you want? If it is, you need to use the file:/// prefix:

file:///H:/media/css/static/img/sprites/buttons-v3-10.png

obviously, this will work only on your local computer.

Also, in many modern browsers, this works only if the page itself is also on a local file path. Addressing local files from remote (http://, https://) pages has been widely disabled due to security reasons.

We can also do this using randint.

from random import randint
l= ['a','b','c']

def get_rand_element(l):
    if l:
        return l[randint(0,len(l)-1)]
    else:
        return None

get_rand_element(l)

Yes. Hit Ctrl-R then ". If you have literal control characters in what you have yanked, use Ctrl-R, Ctrl-O, ".

Here is an explanation of what you can do with registers. What you can do with registers is extraordinary, and once you know how to use them you cannot live without them.

Registers are basically storage locations for strings. Vim has many registers that work in different ways:

• 0 (yank register: when you use y in normal mode, without specifying a register, yanked text goes there and also to the default register),
• 1 to 9 (shifting delete registers, when you use commands such as c or d, what has been deleted goes to register 1, what was in register 1 goes to register 2, etc.),
• " (default register, also known as unnamed register. This is where the " comes in Ctrl-R, "),
• a to z for your own use (capitalized A to Z are for appending to corresponding registers).
• _ (acts like /dev/null (Unix) or NUL (Windows), you can write to it but it's discarded and when you read from it, it is always empty),
• - (small delete register),
• / (search pattern register, updated when you look for text with /, ?, * or # for instance; you can also write to it to dynamically change the search pattern),
• : (stores last VimL typed command via Q or :, readonly),
• + and * (system clipboard registers, you can write to them to set the clipboard and read the clipboard contents from them)

See :help registers for the full reference.

You can, at any moment, use :registers to display the contents of all registers. Synonyms and shorthands for this command are :display, :reg and :di.

In Insert or Command-line mode, Ctrl-R plus a register name, inserts the contents of this register. If you want to insert them literally (no auto-indenting, no conversion of control characters like 0x08 to backspace, etc), you can use Ctrl-R, Ctrl-O, register name. See :help i_CTRL-R and following paragraphs for more reference.

But you can also do the following (and I probably forgot many uses for registers).

• In normal mode, hit ":p. The last command you used in vim is pasted into your buffer.
  Let's decompose: " is a Normal mode command that lets you select what register is to be used during the next yank, delete or paste operation. So ": selects the colon register (storing last command). Then p is a command you already know, it pastes the contents of the register.

  cf. :help ", :help quote_:

• You're editing a VimL file (for instance your .vimrc) and would like to execute a couple of consecutive lines right now: yj:@"Enter.
  Here, yj yanks current and next line (this is because j is a linewise motion but this is out of scope of this answer) into the default register (also known as the unnamed register). Then the :@ Ex command plays Ex commands stored in the register given as argument, and " is how you refer to the unnamed register. Also see the top of this answer, which is related.

  Do not confuse " used here (which is a register name) with the " from the previous example, which was a Normal-mode command.

  cf. :help :@ and :help quote_quote

• Insert the last search pattern into your file in Insert mode, or into the command line, with Ctrl-R, /.

  cf. :help quote_/, help i_CTRL-R

  Corollary: Keep your search pattern but add an alternative: / Ctrl-R, / \|alternative.

• You've selected two words in the middle of a line in visual mode, yanked them with y, they are in the unnamed register. Now you want to open a new line just below where you are, with those two words: :pu. This is shorthand for :put ". The :put command, like many Ex commands, works only linewise.

  cf. :help :put

  You could also have done: :call setreg('"', @", 'V') then p. The setreg function sets the register of which the name is given as first argument (as a string), initializes it with the contents of the second argument (and you can use registers as variables with the name @x where x is the register name in VimL), and turns it into the mode specified in the third argument, V for linewise, nothing for characterwise and literal ^V for blockwise.

  cf. :help setreg(). The reverse functions are getreg() and getregtype().

• If you have recorded a macro with qa...q, then :echo @a will tell you what you have typed, and @a will replay the macro (probably you knew that one, very useful in order to avoid repetitive tasks)

  cf. :help q, help @

  Corollary from the previous example: If you have 8go in the clipboard, then @+ will play the clipboard contents as a macro, and thus go to the 8th byte of your file. Actually this will work with almost every register. If your last inserted string was dd in Insert mode, then @. will (because the . register contains the last inserted string) delete a line. (Vim documentation is wrong in this regard, since it states that the registers #, %, : and . will only work with p, P, :put and Ctrl-R).

  cf. :help @

  Don't confuse :@ (command that plays Vim commands from a register) and @ (normal-mode command that plays normal-mode commands from a register).

  Notable exception is @:. The command register does not contain the initial colon neither does it contain the final carriage return. However in Normal mode, @: will do what you expect, interpreting the register as an Ex command, not trying to play it in Normal mode. So if your last command was :e, the register contains e but @: will reload the file, not go to end of word.

  cf. :help @:

• Show what you will be doing in Normal mode before running it: @='dd' Enter. As soon as you hit the = key, Vim switches to expression evaluation: as you enter an expression and hit Enter, Vim computes it, and the result acts as a register content. Of course the register = is read-only, and one-shot. Each time you start using it, you will have to enter a new expression.

  cf. :help quote_=

  Corollary: If you are editing a command, and you realize that you should need to insert into your command line some line from your current buffer: don't press Esc! Use Ctrl-R =getline(58) Enter. After that you will be back to command line editing, but it has inserted the contents of the 58th line.

• Define a search pattern manually: :let @/ = 'foo'

  cf. :help :let

  Note that doing that, you needn't to escape / in the pattern. However you need to double all single quotes of course.

• Copy all lines beginning with foo, and afterwards all lines containing bar to clipboard, chain these commands: qaq (resets the a register storing an empty macro inside it), :g/^foo/y A, :g/bar/y A, :let @+ = @a.

  Using a capital register name makes the register work in append mode

  Better, if Q has not been remapped by mswin.vim, start Ex mode with Q, chain those “colon commands” which are actually better called “Ex commands”, and go back to Normal mode by typing visual.

  cf. :help :g, :help :y, :help Q

• Double-space your file: :g/^/put _. This puts the contents of the black hole register (empty when reading, but writable, behaving like /dev/null) linewise, after each line (because every line has a beginning!).

• Add a line containing foo before each line: :g/^/-put ='foo'. This is a clever use of the expression register. Here, - is a synonym for .-1 (cf. :help :range). Since :put puts the text after the line, you have to explicitly tell it to act on the previous one.

• Copy the entire buffer to the system clipboard: :%y+.

  cf. :help :range (for the % part) and :help :y.

• If you have misrecorded a macro, you can type :let @a=' Ctrl-R =replace(@a,"'","''",'g') Enter ' and edit it. This will modify the contents of the macro stored in register a, and it's shown here how you can use the expression register to do that.

• If you did dddd, you might do uu in order to undo. With p you could get the last deleted line. But actually you can also recover up to 9 deletes with the registers @1 through @9.

  Even better, if you do "1P, then . in Normal mode will play "2P, and so on.

  cf. :help . and :help quote_number

• If you want to insert the current date in Insert mode: Ctrl-R=strftime('%y%m%d')Enter.

  cf. :help strftime()

Once again, what can be confusing:

• :@ is a command-line command that interprets the contents of a register as vimscript and sources it

• @ in normal mode command that interprets the contents of a register as normal-mode keystrokes (except when you use : register, that contains last played command without the initial colon: in this case it replays the command as if you also re-typed the colon and the final return key).

• " in normal mode command that helps you select a register for yank, paste, delete, correct, etc.

• " is also a valid register name (the default, or unnamed, register) and therefore can be passed as an arguments for commands that expect register names

Facebook uses what's called the Open Graph Protocol to decide what things to display when you share a link. The OGP looks at your page and tries to decide what content to show. We can lend a hand and actually tell Facebook what to take from our page.

The way we do that is with og:meta tags.

The tags look something like this -

  <meta property="og:title" content="Stuffed Cookies" />
  <meta property="og:image" content="http://fbwerks.com:8000/zhen/cookie.jpg" />
  <meta property="og:description" content="The Turducken of Cookies" />
  <meta property="og:url" content="http://fbwerks.com:8000/zhen/cookie.html">

You'll need to place these or similar meta tags in the <head> of your HTML file. Don't forget to substitute the values for your own!

For more information you can read all about how Facebook uses these meta tags in their documentation. Here is one of the tutorials from there - https://developers.facebook.com/docs/opengraph/tutorial/

Facebook gives us a great little tool to help us when dealing with these meta tags - you can use the Debugger to see how Facebook sees your URL, and it'll even tell you if there are problems with it.

One thing to note here is that every time you make a change to the meta tags, you'll need to feed the URL through the Debugger again so that Facebook will clear all the data that is cached on their servers about your URL.

I created this one-stop function for determining the last row, column and cell, be it for data, formatted (grouped/commented/hidden) cells or conditional formatting.

Sub LastCellMsg()
    Dim strResult As String
    Dim lngDataRow As Long
    Dim lngDataCol As Long
    Dim strDataCell As String
    Dim strDataFormatRow As String
    Dim lngDataFormatCol As Long
    Dim strDataFormatCell As String
    Dim oFormatCond As FormatCondition
    Dim lngTempRow As Long
    Dim lngTempCol As Long
    Dim lngCFRow As Long
    Dim lngCFCol As Long
    Dim strCFCell As String
    Dim lngOverallRow As Long
    Dim lngOverallCol As Long
    Dim strOverallCell As String

    With ActiveSheet

        If .ListObjects.Count > 0 Then
            MsgBox "Cannot return reliable results, as there is at least one table in the worksheet."
            Exit Sub
        End If

        strResult = "Workbook name: " & .Parent.Name & vbCrLf
        strResult = strResult & "Sheet name: " & .Name & vbCrLf

        'DATA:
        'last data row
        If Application.WorksheetFunction.CountA(.Cells) <> 0 Then
            lngDataRow = .Cells.Find(What:="*", _
             After:=.Range("A1"), _
             Lookat:=xlPart, _
             LookIn:=xlFormulas, _
             SearchOrder:=xlByRows, _
             SearchDirection:=xlPrevious, _
             MatchCase:=False).Row
        Else
            lngDataRow = 1
        End If
        'strResult = strResult & "Last data row: " & lngDataRow & vbCrLf

        'last data column
        If Application.WorksheetFunction.CountA(.Cells) <> 0 Then
            lngDataCol = .Cells.Find(What:="*", _
             After:=.Range("A1"), _
             Lookat:=xlPart, _
             LookIn:=xlFormulas, _
             SearchOrder:=xlByColumns, _
             SearchDirection:=xlPrevious, _
             MatchCase:=False).Column
        Else
            lngDataCol = 1
        End If
        'strResult = strResult & "Last data column: " & lngDataCol & vbCrLf

        'last data cell
        strDataCell = Replace(Cells(lngDataRow, lngDataCol).Address, "$", vbNullString)
        strResult = strResult & "Last data cell: " & strDataCell & vbCrLf

        'FORMATS:
        'last data/formatted/grouped/commented/hidden row
        strDataFormatRow = StrReverse(Split(StrReverse(.UsedRange.Address), "$")(0))
        'strResult = strResult & "Last data/formatted row: " & strDataFormatRow & vbCrLf

        'last data/formatted/grouped/commented/hidden column
        lngDataFormatCol = Range(StrReverse(Split(StrReverse(.UsedRange.Address), "$")(1)) & "1").Column
        'strResult = strResult & "Last data/formatted column: " & lngDataFormatCol & vbCrLf

        'last data/formatted/grouped/commented/hidden cell
        strDataFormatCell = Replace(Cells(strDataFormatRow, lngDataFormatCol).Address, "$", vbNullString)
        strResult = strResult & "Last data/formatted cell: " & strDataFormatCell & vbCrLf

        'CONDITIONAL FORMATS:
        For Each oFormatCond In .Cells.FormatConditions

            'last conditionally-formatted row
            lngTempRow = CLng(StrReverse(Split(StrReverse(oFormatCond.AppliesTo.Address), "$")(0)))
            If lngTempRow > lngCFRow Then lngCFRow = lngTempRow

            'last conditionally-formatted column
            lngTempCol = Range(StrReverse(Split(StrReverse(oFormatCond.AppliesTo.Address), "$")(1)) & "1").Column
            If lngTempCol > lngCFCol Then lngCFCol = lngTempCol
        Next
        'no results are returned for Conditional Format if there is no such
        If lngCFRow <> 0 Then
            'strResult = strResult & "Last cond-formatted row: " & lngCFRow & vbCrLf
            'strResult = strResult & "Last cond-formatted column: " & lngCFCol & vbCrLf

            'last conditionally-formatted cell
            strCFCell = Replace(Cells(lngCFRow, lngCFCol).Address, "$", vbNullString)
            strResult = strResult & "Last cond-formatted cell: " & strCFCell & vbCrLf
        End If

        'OVERALL:
        lngOverallRow = Application.WorksheetFunction.Max(lngDataRow, strDataFormatRow, lngCFRow)
        'strResult = strResult & "Last overall row: " & lngOverallRow & vbCrLf
        lngOverallCol = Application.WorksheetFunction.Max(lngDataCol, lngDataFormatCol, lngCFCol)
        'strResult = strResult & "Last overall column: " & lngOverallCol & vbCrLf
        strOverallCell = Replace(.Cells(lngOverallRow, lngOverallCol).Address, "$", vbNullString)
        strResult = strResult & "Last overall cell: " & strOverallCell & vbCrLf

        MsgBox strResult
        Debug.Print strResult

    End With

End Sub

Results look like this:

For more detailed results, some lines in the code can be uncommented:

One limitation exists - if there are tables in the sheet, results can become unreliable, so I decided to avoid running the code in this case:

If .ListObjects.Count > 0 Then
    MsgBox "Cannot return reliable results, as there is at least one table in the worksheet."
    Exit Sub
End If

For Swift 3 it's now: IndexPath(row: rowIndex, section: sectionIndex)

in my experience. I was using jsp for web. at that time I use mysql 5 and mysql connecter jar 8. So due to the version problem I face this kind of problem. I solve by replace the mysql connector jar file the exact version mysql.

Request Types

• create - POST
• read - GET
• create or update - PUT
• delete - DELETE
• update - PATCH

GET/PUT is idempotent PATCH can be sometimes idempotent

What is idempotent - It means if we fire the query multiple times it should not afftect the result of it.(same output.Suppose a cow is pregnant and if we breed it again then it cannot be pregnent multiple times)

get :-

simple get. Get the data from server and show it to user

{
id:1
name:parth
email:[email protected]
}

post :-

create new resource at Database. It means it adds new data. Its not idempotent.

put :-

Create new resource otherwise add to existing. Idempotent because it will update the same resource everytime and output will be the same. ex. - initial data

{
id:1
name:parth
email:[email protected]
}

• perform put-localhost/1 put email:[email protected]

{
id:1
email:[email protected]
}

patch

so now came patch request PATCH can be sometimes idempotent

id:1
name:parth
email:[email protected]
}

patch name:w

{
id:1
name:w
email:[email protected]
}

HTTP  Method
GET     yes
POST    no
PUT     yes
PATCH   no*
OPTIONS yes
HEAD    yes
DELETE  yes

Resources : Idempotent -- What is Idempotency?

For AWS users who work with Amazon SES in conjunction with PHPMailer, this error also appears when your "from" mail sender isn't a verified sender.

To add a verified sender:

1. Log in to your Amazon AWS console: https://console.aws.amazon.com

2. Select "Amazon SES" from your list of available AWS applications

3. Select, under "Verified Senders", the "Email Addresses" --> "Verify a new email address"

4. Navigate to that new sender's email, click the confirmation e-mail's link.

And you're all set.

Both OpenJDK and Oracle JDK are created and maintained currently by Oracle only.

OpenJDK and Oracle JDK are implementations of the same Java specification passed the TCK (Java Technology Certification Kit).

Most of the vendors of JDK are written on top of OpenJDK by doing a few tweaks to [mostly to replace licensed proprietary parts / replace with more high-performance items that only work on specific OS] components without breaking the TCK compatibility.

Many vendors implemented the Java specification and got TCK passed. For example, IBM J9, Azul Zulu, Azul Zing, and Oracle JDK.

Almost every existing JDK is derived from OpenJDK.

As suggested by many, licensing is a change between JDKs.

Starting with JDK 11 accessing the long time support Oracle JDK/Java SE will now require a commercial license. You should now pay attention to which JDK you're installing as Oracle JDK without subscription could stop working. source

Ref: List of Java virtual machines

@lenooh satisfied my query. I discovered this article while searching for 'python suppress newline'. I'm using IDLE3 on Raspberry Pi to develop Python 3.2 for PuTTY. I wanted to create a progress bar on the PuTTY command line. I didn't want the page scrolling away. I wanted a horizontal line to re-assure the user from freaking out that the program hasn't cruncxed to a halt nor been sent to lunch on a merry infinite loop - as a plea to 'leave me be, I'm doing fine, but this may take some time.' interactive message - like a progress bar in text.

The print('Skimming for', search_string, '\b! .001', end='') initializes the message by preparing for the next screen-write, which will print three backspaces as ??? rubout and then a period, wiping off '001' and extending the line of periods. After search_string parrots user input, the \b! trims the exclamation point of my search_string text to back over the space which print() otherwise forces, properly placing the punctuation. That's followed by a space and the first 'dot' of the 'progress bar' which I'm simulating. Unnecessarily, the message is also then primed with the page number (formatted to a length of three with leading zeros) to take notice from the user that progress is being processed and which will also reflect the count of periods we will later build out to the right.

import sys

page=1
search_string=input('Search for?',)
print('Skimming for', search_string, '\b! .001', end='')
sys.stdout.flush() # the print function with an end='' won't print unless forced
while page:
    # some stuff…
    # search, scrub, and build bulk output list[], count items,
    # set done flag True
    page=page+1 #done flag set in 'some_stuff'
    sys.stdout.write('\b\b\b.'+format(page, '03')) #<-- here's the progress bar meat
    sys.stdout.flush()
    if done: #( flag alternative to break, exit or quit)
        print('\nSorting', item_count, 'items')
        page=0 # exits the 'while page' loop
list.sort()
for item_count in range(0, items)
    print(list[item_count])
#print footers here
 if not (len(list)==items):
    print('#error_handler')

The progress bar meat is in the sys.stdout.write('\b\b\b.'+format(page, '03')) line. First, to erase to the left, it backs up the cursor over the three numeric characters with the '\b\b\b' as ??? rubout and drops a new period to add to the progress bar length. Then it writes three digits of the page it has progressed to so far. Because sys.stdout.write() waits for a full buffer or the output channel to close, the sys.stdout.flush() forces the immediate write. sys.stdout.flush() is built into the end of print() which is bypassed with print(txt, end='' ). Then the code loops through its mundane time intensive operations while it prints nothing more until it returns here to wipe three digits back, add a period and write three digits again, incremented.

The three digits wiped and rewritten is by no means necessary - it's just a flourish which exemplifies sys.stdout.write() versus print(). You could just as easily prime with a period and forget the three fancy backslash-b ? backspaces (of course not writing formatted page counts as well) by just printing the period bar longer by one each time through - without spaces or newlines using just the sys.stdout.write('.'); sys.stdout.flush() pair.

Please note that the Raspberry Pi IDLE3 Python shell does not honor the backspace as ? rubout but instead prints a space, creating an apparent list of fractions instead.

—(o=8> wiz

Jenkins > Project Dashboard > (select gradle project) Configure > Build

x Use Gradle Wrapper

Make gradlew executable x

To plot text on a ggplot you use the geom_text. But I find it helpful to summarise the data first using ddply

dfl <- ddply(df, .(x), summarize, y=length(x))
str(dfl)

Since the data is pre-summarized, you need to remember to change add the stat="identity" parameter to geom_bar:

ggplot(dfl, aes(x, y=y, fill=x)) + geom_bar(stat="identity") +
    geom_text(aes(label=y), vjust=0) +
    opts(axis.text.x=theme_blank(),
        axis.ticks=theme_blank(),
        axis.title.x=theme_blank(),
        legend.title=theme_blank(),
        axis.title.y=theme_blank()
)

The webbrowser module looks promising: https://www.youtube.com/watch?v=jU3P7qz3ZrM

import webbrowser
webbrowser.open('http://google.co.kr', new=2)

Everything you need here can be found in this quickstart guide. A straightforward solution would be [A-Za-z][A-Za-z]\d\d\d\d\d\d or [A-Za-z]{2}\d{6}.

If you want to accept only capital letters then replace [A-Za-z] with [A-Z].

There is one and only one reliable way to do this, and it is by pulling the value in an interval and comparing it to a cached value.

The reason why this is the only way is because there are multiple ways to change an input field using various inputs (keyboard, mouse, paste, browser history, voiceinput etc.) and you can never detect all of them using standard events in a cross-browser environment.

Luckily, thanks to the event infrastructure in jQuery, it’s quite easy to add your own inputchange event. I did so here:

$.event.special.inputchange = {
    setup: function() {
        var self = this, val;
        $.data(this, 'timer', window.setInterval(function() {
            val = self.value;
            if ( $.data( self, 'cache') != val ) {
                $.data( self, 'cache', val );
                $( self ).trigger( 'inputchange' );
            }
        }, 20));
    },
    teardown: function() {
        window.clearInterval( $.data(this, 'timer') );
    },
    add: function() {
        $.data(this, 'cache', this.value);
    }
};

Use it like: $('input').on('inputchange', function() { console.log(this.value) });

There is a demo here: http://jsfiddle.net/LGAWY/

If you’re scared of multiple intervals, you can bind/unbind this event on focus/blur.

This error can be caused by putting the function definitions for a template class in a separate .cpp file. For a template class, the member functions have to be declared in the header file. You can resolve the issue by defining the member functions inline or right after the class definition in the .h file.

For example, instead of putting the function definitions in a .cpp file like for other classes, you could define them inline like this:

template<typename T>
MyClassName {
  void someFunction() {
    // Do something
    ...
  }
  void anotherFunction() {
    // Do something else
    ...
  }
}

Or you could define them after the class definition but in the same file, like this:

template<typename T>
MyClassName {
  void someFunction();
  void anotherFunction();
}

void MyClassName::someFunction() {
  // Do something
  ...
}
void MyClassName::anotherFunction() {
  // Do something else
  ...
}

I just thought I'd share that since no one else seems to have mentioned template classes. This was the cause of the error in my case.

It works with npm install -g @angular/cli@latest for me.

I threw together a small library for this since I do think there are valid use cases for manipulating stylesheets in JS. Reasons being:

• Setting styles that must be calculated or retrieved - for example setting the user's preferred font-size from a cookie.
• Setting behavioural (not aesthetic) styles, especially for UI widget/plugin developers. Tabs, carousels, etc, often require some basic CSS simply to function - shouldn't demand a stylesheet for the core function.
• Better than inline styles since CSS rules apply to all current and future elements, and don't clutter the HTML when viewing in Firebug / Developer Tools.

Just give any name to the DataTable Like:

DataTable dt = new DataTable();
dt = SecondDataTable.Copy();    
dt .TableName = "New Name";
DataSet.Tables.Add(dt );

First, this is the directory layout that I am using:

.
+-- include
¦   +-- class1.hpp
¦   +-- ...
¦   +-- class2.hpp
+-- src
    +-- class1.cpp
    +-- ...
    +-- class2.cpp

After a couple of days taking a look into this, this is my favourite way of doing this thanks to modern CMake:

cmake_minimum_required(VERSION 3.5)
project(mylib VERSION 1.0.0 LANGUAGES CXX)

set(DEFAULT_BUILD_TYPE "Release")

if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
  message(STATUS "Setting build type to '${DEFAULT_BUILD_TYPE}' as none was specified.")
  set(CMAKE_BUILD_TYPE "${DEFAULT_BUILD_TYPE}" CACHE STRING "Choose the type of build." FORCE)
  # Set the possible values of build type for cmake-gui
  set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()

include(GNUInstallDirs)

set(SOURCE_FILES src/class1.cpp src/class2.cpp)

add_library(${PROJECT_NAME} ...)

target_include_directories(${PROJECT_NAME} PUBLIC
    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
    $<INSTALL_INTERFACE:include>
    PRIVATE src)

set_target_properties(${PROJECT_NAME} PROPERTIES
    VERSION ${PROJECT_VERSION}
    SOVERSION 1)

install(TARGETS ${PROJECT_NAME} EXPORT MyLibConfig
    ARCHIVE  DESTINATION ${CMAKE_INSTALL_LIBDIR}
    LIBRARY  DESTINATION ${CMAKE_INSTALL_LIBDIR}
    RUNTIME  DESTINATION ${CMAKE_INSTALL_BINDIR})
install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME})

install(EXPORT MyLibConfig DESTINATION share/MyLib/cmake)

export(TARGETS ${PROJECT_NAME} FILE MyLibConfig.cmake)

After running CMake and installing the library, there is no need to use Find***.cmake files, it can be used like this:

find_package(MyLib REQUIRED)

#No need to perform include_directories(...)
target_link_libraries(${TARGET} mylib)

That's it, if it has been installed in a standard directory it will be found and there is no need to do anything else. If it has been installed in a non-standard path, it is also easy, just tell CMake where to find MyLibConfig.cmake using:

cmake -DMyLib_DIR=/non/standard/install/path ..

I hope this helps everybody as much as it has helped me. Old ways of doing this were quite cumbersome.

Fastest by far (time is in comparison to Jacobs):

clc; clear all;
V = rand(1024*1024*32,1);
N = 10;
tic; 
for i=1:N, 
    d = 1/sqrt(V(1)*V(1)+V(2)*V(2)+V(3)*V(3)); 
    V1 = V*d;
end; 
toc % 1.5s

Update 2020

as requested by @baxxx, here is an update because random.rand is deprecated meanwhile.

This works with matplotlip 3.2.1:

from matplotlib import pyplot as plt
import random
import numpy as np

random = np.random.random ([8,90])

plt.figure(figsize = (20,2))
plt.imshow(random, interpolation='nearest')

This plots:

To change the random number, you can experiment with np.random.normal(0,1,(8,90)) (here mean = 0, standard deviation = 1).

Just add an alias name as follows
sum(totalitems) as totalitems.

Git clone is the command you're looking for:

git clone [email protected]:username/repo.git

Update: And this is the official guide: https://help.github.com/articles/fork-a-repo

Take a look at: https://help.github.com/

It has really useful content

setRetainInstance() - Deprecated

As Fragments Version 1.3.0-alpha01

The setRetainInstance() method on Fragments has been deprecated. With the introduction of ViewModels, developers have a specific API for retaining state that can be associated with Activities, Fragments, and Navigation graphs. This allows developers to use a normal, not retained Fragment and keep the specific state they want retained separate, avoiding a common source of leaks while maintaining the useful properties of a single creation and destruction of the retained state (namely, the constructor of the ViewModel and the onCleared() callback it receives).

You will want to verify whatever your calling is valid. For example, in the case of a specific function, you will want to check and see if the function exists:

function doIt($callback) {
    if(function_exists($callback)) {
        $callback();
    } else {
        // some error handling
    }
}

If you're seeing this error and you just upgraded to Android Studio 2.2+ you need to update your JDK in "Project Structure" options.

On OSX, this is found under File > Project Structure > SDK. Or from the welcome screen in Configure > Project Defaults > Project Structure.

Select the Use the embedded JDK (recommended) option instead of using your own JDK.

Google's docs aren't yet updated to reflect this change. See: http://tools.android.com/tech-docs/configuration/osx-jdk

Try the following:

ConnectivityManager connectivityManager = ...;
LinkProperties linkProperties = connectivityManager.getLinProperties(connectivityManager.GetActiveNetwork());
for (RouteInfo routeInfo: linkProperties.getRoutes()) {
    if (routeInfo.IsDefaultRoute() && routeInfo.hasGateway()) {
        return routeInfo.getGateway();
    }
}

Here is my version of the steps:

1. Make sure adb is running
2. In device go to Settings -> developer options -> Revoke USB debugging authorities
3. Disconnect device
4. In adb shell type > adb kill-server
5. In adb shell type > adb start-server
6. Connect device

if adb shell shows empty host name, restart device

For modern web browsers (After IE9)

See the Duplicate listed at the top of the page for correct information!

See answer here: How to control web page caching, across all browsers?

For IE9 and before

Do not blindly copy paste this!

The list is just examples of different techniques, it's not for direct insertion. If copied, the second would overwrite the first and the fourth would overwrite the third because of the http-equiv declarations AND fail with the W3C validator. At most, one could have one of each http-equiv declarations; pragma, cache-control and expires. These are completely outdated when using modern up to date browsers. After IE9 anyway. Chrome and Firefox specifically does not work with these as you would expect, if at all.

<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />

Actually do not use these at all!

Caching headers are unreliable in meta elements; for one, any web proxies between the site and the user will completely ignore them. You should always use a real HTTP header for headers such as Cache-Control and Pragma.

Anyone interested in doing this should read the documentation of the Django Sessions framework. It stores a session ID in the user's cookies, but maps all the cookies-like data to your database. This is an improvement on the typical cookies-based workflow for HTTP requests.

Here is an example with a Django view ...

def homepage(request):

    request.session.setdefault('how_many_visits', 0)
    request.session['how_many_visits'] += 1

    print(request.session['how_many_visits'])

    return render(request, 'home.html', {})

If you keep visiting the page over and over, you'll see the value start incrementing up from 1 until you clear your cookies, visit on a new browser, go incognito, or do anything else that sidesteps Django's Session ID cookie.