Copied from http://technet.microsoft.com/en-us/library/cc750354.aspx

What's FAT?

FAT may sound like a strange name for a file system, but it's actually an acronym for File Allocation Table. Introduced in 1981, FAT is ancient in computer terms. Because of its age, most operating systems, including Microsoft Windows NT®, Windows 98, the Macintosh OS, and some versions of UNIX, offer support for FAT.

The FAT file system limits filenames to the 8.3 naming convention, meaning that a filename can have no more than eight characters before the period and no more than three after. Filenames in a FAT file system must also begin with a letter or number, and they can't contain spaces. Filenames aren't case sensitive.

What About VFAT?

Perhaps you've also heard of a file system called VFAT. VFAT is an extension of the FAT file system and was introduced with Windows 95. VFAT maintains backward compatibility with FAT but relaxes the rules. For example, VFAT filenames can contain up to 255 characters, spaces, and multiple periods. Although VFAT preserves the case of filenames, it's not considered case sensitive.

When you create a long filename (longer than 8.3) with VFAT, the file system actually creates two different filenames. One is the actual long filename. This name is visible to Windows 95, Windows 98, and Windows NT (4.0 and later). The second filename is called an MS-DOS® alias. An MS-DOS alias is an abbreviated form of the long filename. The file system creates the MS-DOS alias by taking the first six characters of the long filename (not counting spaces), followed by the tilde [~] and a numeric trailer. For example, the filename Brien's Document.txt would have an alias of BRIEN'~1.txt.

An interesting side effect results from the way VFAT stores its long filenames. When you create a long filename with VFAT, it uses one directory entry for the MS-DOS alias and another entry for every 13 characters of the long filename. In theory, a single long filename could occupy up to 21 directory entries. The root directory has a limit of 512 files, but if you were to use the maximum length long filenames in the root directory, you could cut this limit to a mere 24 files. Therefore, you should use long filenames very sparingly in the root directory. Other directories aren't affected by this limit.

You may be wondering why we're discussing VFAT. The reason is it's becoming more common than FAT, but aside from the differences I mentioned above, VFAT has the same limitations. When you tell Windows NT to format a partition as FAT, it actually formats the partition as VFAT. The only time you'll have a true FAT partition under Windows NT 4.0 is when you use another operating system, such as MS-DOS, to format the partition.

FAT32

FAT32 is actually an extension of FAT and VFAT, first introduced with Windows 95 OEM Service Release 2 (OSR2). FAT32 greatly enhances the VFAT file system but it does have its drawbacks.

The greatest advantage to FAT32 is that it dramatically increases the amount of free hard disk space. To illustrate this point, consider that a FAT partition (also known as a FAT16 partition) allows only a certain number of clusters per partition. Therefore, as your partition size increases, the cluster size must also increase. For example, a 512-MB FAT partition has a cluster size of 8K, while a 2-GB partition has a cluster size of 32K.

This may not sound like a big deal until you consider that the FAT file system only works in single cluster increments. For example, on a 2-GB partition, a 1-byte file will occupy the entire cluster, thereby consuming 32K, or roughly 32,000 times the amount of space that the file should consume. This rule applies to every file on your hard disk, so you can see how much space can be wasted.

Converting a partition to FAT32 reduces the cluster size (and overcomes the 2-GB partition size limit). For partitions 8 GB and smaller, the cluster size is reduced to a mere 4K. As you can imagine, it's not uncommon to gain back hundreds of megabytes by converting a partition to FAT32, especially if the partition contains a lot of small files.

Note: This section of the quote/ article (1999) is out of date. Updated info quote below.

As I mentioned, FAT32 does have limitations. Unfortunately, it isn't compatible with any operating system other than Windows 98 and the OSR2 version of Windows 95. However, Windows 2000 will be able to read FAT32 partitions.

The other disadvantage is that your disk utilities and antivirus software must be FAT32-aware. Otherwise, they could interpret the new file structure as an error and try to correct it, thus destroying data in the process.

Finally, I should mention that converting to FAT32 is a one-way process. Once you've converted to FAT32, you can't convert the partition back to FAT16. Therefore, before converting to FAT32, you need to consider whether the computer will ever be used in a dual-boot environment. I should also point out that although other operating systems such as Windows NT can't directly read a FAT32 partition, they can read it across the network. Therefore, it's no problem to share information stored on a FAT32 partition with other computers on a network that run older operating systems.

Updated mentioned in comment by Doktor-J (assimilated to update out of date answer in case comment is ever lost):

I'd just like to point out that most modern operating systems (WinXP/Vista/7/8, MacOS X, most if not all Linux variants) can read FAT32, contrary to what the second-to-last paragraph suggests.

The original article was written in 1999, and being posted on a Microsoft website, probably wasn't concerned with non-Microsoft operating systems anyways.

The operating systems "excluded" by that paragraph are probably the original Windows 95, Windows NT 4.0, Windows 3.1, DOS, etc.

You are trying to cast int[] to Integer[], this is not possible.

You can use commons-lang's ArrayUtils to convert the ints to Integers before getting the List from the array:

public int getTheNumber(int[] factors) {
    Integer[] integers = ArrayUtils.toObject(factors);
    ArrayList<Integer> f = new ArrayList<Integer>(Arrays.asList(integers));
    Collections.sort(f);
    return f.get(0)*f.get(f.size()-1);
}    

webpack 4 now offers a version property that can be used!

Not quite an answer, but a long comment with nice formatting of code to the other (correct) answers. If you try the following, you will see that what you are getting are views of the original array, not copies, and that was not the case for the accepted answer in the question you link. Be aware of the possible side effects!

>>> x = np.arange(9.0)
>>> a,b,c = np.split(x, 3)
>>> a
array([ 0.,  1.,  2.])
>>> a[1] = 8
>>> a
array([ 0.,  8.,  2.])
>>> x
array([ 0.,  8.,  2.,  3.,  4.,  5.,  6.,  7.,  8.])
>>> def chunks(l, n):
...     """ Yield successive n-sized chunks from l.
...     """
...     for i in xrange(0, len(l), n):
...         yield l[i:i+n]
... 
>>> l = range(9)
>>> a,b,c = chunks(l, 3)
>>> a
[0, 1, 2]
>>> a[1] = 8
>>> a
[0, 8, 2]
>>> l
[0, 1, 2, 3, 4, 5, 6, 7, 8]

For anyone who finds themselves with the following problem (grouping by ensuring zero and null values are treated as equals)...

SELECT AccountNumber, Amount AS MyAlias
FROM Transactions
GROUP BY AccountNumber, ISNULL(Amount, 0)

(I.e. SQL Server complains that you haven't included the field Amount in your Group By or aggregate function)

...remember to place the exact same function in your SELECT...

SELECT AccountNumber, ISNULL(Amount, 0) AS MyAlias
FROM Transactions
GROUP BY AccountNumber, ISNULL(Amount, 0)

ValidateForm returns boolean,not a string.
When you do this if(ValidateForm() == 'false'), is the same of if(false == 'false'), which is not true.

function post(url, formId) {
    if(!ValidateForm()) {
        // False
    } else {
        // True
    }
}

What's this "other information"? An IP address?

In PHP, you use $_SERVER['REMOTE_ADDR'] to get the IP address of the remote client, then you can use gethostbyaddr() to try and conver that IP into a hostname - but not all IPs have a reverse mapping configured.

There's an article on Code Project about using GDI+ for .NET to do photo resizing using, say, Bicubic interpolation.

There was also another article about this topic on another blog (MS employee, I think), but I can't find the link anywhere. :( Perhaps someone else can find it?

What you're saying here is you want to have one that uses has collision resistance. Try using SHA-2. Or try using a (good) block cipher in a one way compression function (never tried that before), like AES in Miyaguchi-Preenel mode. The problem with that is that you need to:

1) have an IV. Try using the first 256 bits of the fractional parts of Khinchin's constant or something like that. 2) have a padding scheme. Easy. Barrow it from a hash like MD5 or SHA-3 (Keccak [pronounced 'ket-chak']). If you don't care about the security (a few others said this), look at FNV or lookup2 by Bob Jenkins (actually I'm the first one who reccomends lookup2) Also try MurmurHash, it's fast (check this: .16 cpb).

Your system is missing the mysqlnd driver!

If you are able to install new packages on your (Debian/Ubuntu-based) server, install the driver:

sudo apt-get install php5-mysqlnd

and then restart your web server:

sudo /etc/init.d/apache2 restart

Try max(): http://php.net/manual/en/function.max.php See the first comment on that page

for key, value in d.iteritems():
    print key, '\t', value

Here is a snippet from my perl script to do this:

print OUTPUT "set arrow from $x1,$y1 to $x1,$y2 nohead lc rgb \'red\'\n";

As you might guess from above, it's actually drawn as a "headless" arrow.

1. So number 1 above. What is Inversion of Control?

2. Maintenance is the number one thing it solves for me. It guarantees I am using interfaces so that two classes are not intimate with each other.

In using a container like Castle Windsor, it solves maintenance issues even better. Being able to swap out a component that goes to a database for one that uses file based persistence without changing a line of code is awesome (configuration change, you're done).

And once you get into generics, it gets even better. Imagine having a message publisher that receives records and publishes messages. It doesn't care what it publishes, but it needs a mapper to take something from a record to a message.

public class MessagePublisher<RECORD,MESSAGE>
{
    public MessagePublisher(IMapper<RECORD,MESSAGE> mapper,IRemoteEndpoint endPointToSendTo)
    {
      //setup
    }
}

I wrote it once, but now I can inject many types into this set of code if I publish different types of messages. I can also write mappers that take a record of the same type and map them to different messages. Using DI with Generics has given me the ability to write very little code to accomplish many tasks.

Oh yeah, there are testability concerns, but they are secondary to the benefits of IoC/DI.

I am definitely loving IoC/DI.

3 . It becomes more appropriate the minute you have a medium sized project of somewhat more complexity. I would say it becomes appropriate the minute you start feeling pain.

You could use for() with assign() to create many objects. See the example from assign():

for(i in 1:6) { #-- Create objects  'r.1', 'r.2', ... 'r.6' --
    nam <- paste("r", i, sep = ".")
    assign(nam, 1:i)

Looking the new objects

ls(pattern = "^r..$")

IEEE 754 floating point values are stored using base 2 representation. Any base 2 number can be represented as a decimal (base 10) to full precision. None of the proposed answers, however, do. They all truncate the decimal value.

This seems to be due to a misinterpretation of what std::numeric_limits<T>::max_digits10 represents:

The value of std::numeric_limits<T>::max_digits10 is the number of base-10 digits that are necessary to uniquely represent all distinct values of the type T.

In other words: It's the (worst-case) number of digits required to output if you want to roundtrip from binary to decimal to binary, without losing any information. If you output at least max_digits10 decimals and reconstruct a floating point value, you are guaranteed to get the exact same binary representation you started with.

What's important: max_digits10 in general neither yields the shortest decimal, nor is it sufficient to represent the full precision. I'm not aware of a constant in the C++ Standard Library that encodes the maximum number of decimal digits required to contain the full precision of a floating point value. I believe it's something like 767 for doubles¹. One way to output a floating point value with full precision would be to use a sufficiently large value for the precision, like so², and have the library strip any trailing zeros:

#include <iostream>

int main() {
    double d = 0.1;
    std::cout.precision(767);
    std::cout << "d = " << d << std::endl;
}

This produces the following output, that contains the full precision:

d = 0.1000000000000000055511151231257827021181583404541015625

Note that this has significantly more decimals than max_digits10 would suggest.

While that answers the question that was asked, a far more common goal would be to get the shortest decimal representation of any given floating point value, that retains all information. Again, I'm not aware of any way to instruct the Standard I/O library to output that value. Starting with C++17 the possibility to do that conversion has finally arrived in C++ in the form of std::to_chars. By default, it produces the shortest decimal representation of any given floating point value that retains the entire information.

Its interface is a bit clunky, and you'd probably want to wrap this up into a function template that returns something you can output to std::cout (like a std::string), e.g.

#include <charconv>
#include <array>
#include <string>
#include <system_error>

#include <iostream>
#include <cmath>

template<typename T>
std::string to_string(T value)
{
    // 24 characters is the longest decimal representation of any double value
    std::array<char, 24> buffer {};
    auto const res { std::to_chars(buffer.data(), buffer.data() + buffer.size(), value) };
    if (res.ec == std::errc {})
    {
        // Success
        return std::string(buffer.data(), res.ptr);
    }

    // Error
    return { "FAILED!" };
}

int main()
{
    auto value { 0.1f };
    std::cout << to_string(value) << std::endl;
    value = std::nextafter(value, INFINITY);
    std::cout << to_string(value) << std::endl;
    value = std::nextafter(value, INFINITY);
    std::cout << to_string(value) << std::endl;
}

This would print out (using Microsoft's C++ Standard Library):

0.1
0.10000001
0.10000002

¹ From Stephan T. Lavavej's CppCon 2019 talk titled Floating-Point <charconv>: Making Your Code 10x Faster With C++17's Final Boss. (The entire talk is worth watching.)

² This would also require using a combination of scientific and fixed, whichever is shorter. I'm not aware of a way to set this mode using the C++ Standard I/O library.

In JavaScript everything is an object

console.log(type of({}))  //Object
console.log(type of([]))  //Object

To get Real type , use this

console.log(Object.prototype.toString.call({}))   //[object Object]
console.log(Object.prototype.toString.call([]))   //[object Array]

Hope this helps

Use pd.concat to merge a list of DataFrame into a single big DataFrame.

appended_data = []
for infile in glob.glob("*.xlsx"):
    data = pandas.read_excel(infile)
    # store DataFrame in list
    appended_data.append(data)
# see pd.concat documentation for more info
appended_data = pd.concat(appended_data)
# write DataFrame to an excel sheet 
appended_data.to_excel('appended.xlsx')

You're probably not accessing it correctly. You can output it directly or cast it as a string. (in this example, the casting is superfluous, as echo automatically does it anyway)

$content = simplexml_load_string(
    '<content><![CDATA[Hello, world!]]></content>'
);
echo (string) $content;

// or with parent element:

$foo = simplexml_load_string(
    '<foo><content><![CDATA[Hello, world!]]></content></foo>'
);
echo (string) $foo->content;

You might have better luck with LIBXML_NOCDATA:

$content = simplexml_load_string(
    '<content><![CDATA[Hello, world!]]></content>'
    , null
    , LIBXML_NOCDATA
);

I had the very same issue. The answer is that you are doing it right already. It is the problem of MS Excel. Try opening the file with another editor and you will notice that your encoding was successful already. To make MS Excel happy, move from UTF-8 to UTF-16. This should work:

class UnicodeWriter:
def __init__(self, f, dialect=csv.excel_tab, encoding="utf-16", **kwds):
    # Redirect output to a queue
    self.queue = StringIO.StringIO()
    self.writer = csv.writer(self.queue, dialect=dialect, **kwds)
    self.stream = f

    # Force BOM
    if encoding=="utf-16":
        import codecs
        f.write(codecs.BOM_UTF16)

    self.encoding = encoding

def writerow(self, row):
    # Modified from original: now using unicode(s) to deal with e.g. ints
    self.writer.writerow([unicode(s).encode("utf-8") for s in row])
    # Fetch UTF-8 output from the queue ...
    data = self.queue.getvalue()
    data = data.decode("utf-8")
    # ... and reencode it into the target encoding
    data = data.encode(self.encoding)

    # strip BOM
    if self.encoding == "utf-16":
        data = data[2:]

    # write to the target stream
    self.stream.write(data)
    # empty queue
    self.queue.truncate(0)

def writerows(self, rows):
    for row in rows:
        self.writerow(row)

In theory everything is possible but reality you find the numbers much lower than you might expect. I have been trying to address huge spaces on servers often and found that even though a server can have huge amounts of memory it surprised me that most software actually never can address it in real scenario's simply because the cpu's are not fast enough to really address them. Why would you say right ?! . Timings thats the endless downfall of every enormous machine which i have worked on. So i would advise to not go overboard by addressing huge amounts just because you can, but use what you think could be used. Actual values are often much lower than what you expected. Ofcourse non of us really uses hp 9000 systems at home and most of you actually ever will go near the capacity of your home system ever. For instance most users do not have more than 16 Gb of memory in their system. Ofcourse some of the casual gamers use work stations for a game once a month but i bet that is a very small percentage. So coming down to earth means i would address on a 8 Gb 64 bit system not much more than 512 mb for heapspace or if you go overboard try 1 Gb. I am pretty sure its even with these numbers pure overkill. I have constant monitored the memory usage during gaming to see if the addressing would make any difference but did not notice any difference at all when i addressed much lower values or larger ones. Even on the server/workstations there was no visible change in performance no matter how large i set the values. That does not say some jave users might be able to make use of more space addressed, but this far i have not seen any of the applications needing so much ever. Ofcourse i assume that their would be a small difference in performance if java instances would run out of enough heapspace to work with. This far i have not found any of it at all, however lack of real installed memory showed instant drops of performance if you set too much heapspace. When you have a 4 Gb system you run quickly out of heapspace and then you will see some errors and slowdowns because people address too much space which actually is not free in the system so the os starts to address drive space to make up for the shortage hence it starts to swap.

I have same issue , i solved issue :

step-1 : download docker-compose using following command.

     1.  sudo su

     2. sudo curl -L https://github.com/docker/compose/releases/download/1.21.0/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose

Step-2 : Run command

    chmod +x /usr/local/bin/docker-compose

Step-3 : Check docker-compose version

     docker-compose --version

Check this list or just keep trying upload!

• Got to member center
• Check if there are any invalid provisioning profiles (for some reason, my app store distribution profile has become invalid)
• Delete invalid profiles
• Create new ones
• Download and drag on XCode
• Reboot Mac
• Archive => Upload to App Store
• Everything should be fine again

MSBuild usually works, but I've run into difficulties before. You may have better luck with

devenv YourSolution.sln /Build 

There is nothing wrong with deleting items from the dictionary while iterating, as you've proposed. Be careful about multiple threads using the same dictionary at the same time, which may result in a KeyError or other problems.

Of course, see the docs at http://docs.python.org/library/stdtypes.html#typesmapping

If you have used chmod command already then check the difference of file, It shows previous file mode and current file mode such as:

new mode : 755

old mode : 644

set old mode of all files using below command

sudo chmod 644 .

now set core.fileMode to false in config file either using command or manually.

git config core.fileMode false

then apply chmod command to change the permissions of all files such as

sudo chmod 755 .

and again set core.fileMode to true.

git config core.fileMode true

For best practises don't Keep core.fileMode false always.

I don't believe there's anything within .NET to allow copying a section of a file without buffering it in memory. However, it strikes me that this is inefficient anyway, as it needs to open the input file and seek many times. If you're just splitting up the file, why not open the input file once, and then just write something like:

public static void CopySection(Stream input, string targetFile, int length)
{
    byte[] buffer = new byte[8192];

    using (Stream output = File.OpenWrite(targetFile))
    {
        int bytesRead = 1;
        // This will finish silently if we couldn't read "length" bytes.
        // An alternative would be to throw an exception
        while (length > 0 && bytesRead > 0)
        {
            bytesRead = input.Read(buffer, 0, Math.Min(length, buffer.Length));
            output.Write(buffer, 0, bytesRead);
            length -= bytesRead;
        }
    }
}

This has a minor inefficiency in creating a buffer on each invocation - you might want to create the buffer once and pass that into the method as well:

public static void CopySection(Stream input, string targetFile,
                               int length, byte[] buffer)
{
    using (Stream output = File.OpenWrite(targetFile))
    {
        int bytesRead = 1;
        // This will finish silently if we couldn't read "length" bytes.
        // An alternative would be to throw an exception
        while (length > 0 && bytesRead > 0)
        {
            bytesRead = input.Read(buffer, 0, Math.Min(length, buffer.Length));
            output.Write(buffer, 0, bytesRead);
            length -= bytesRead;
        }
    }
}

Note that this also closes the output stream (due to the using statement) which your original code didn't.

The important point is that this will use the operating system file buffering more efficiently, because you reuse the same input stream, instead of reopening the file at the beginning and then seeking.

I think it'll be significantly faster, but obviously you'll need to try it to see...

This assumes contiguous chunks, of course. If you need to skip bits of the file, you can do that from outside the method. Also, if you're writing very small files, you may want to optimise for that situation too - the easiest way to do that would probably be to introduce a BufferedStream wrapping the input stream.

This is what you should do. It should work in that you have a 1 second animation, then a 4 second delay between iterations:

@keyframes barshine {
  0% {
  background-image:linear-gradient(120deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.25) -5%,rgba(255,255,255,0) 0%);
  }
  20% {
    background-image:linear-gradient(120deg,rgba(255,255,255,0) 10%,rgba(255,255,255,0.25) 105%,rgba(255,255,255,0) 110%);
  }
}
.progbar {
  animation: barshine 5s 0s linear infinite;
}

So I've been messing around with this a lot and you can do it without being very hacky. This is the simplest way to put in a delay between animation iterations that's 1. SUPER EASY and 2. just takes a little logic. Check out this dance animation I've made:

.dance{
  animation-name: dance;
  -webkit-animation-name: dance;

  animation-iteration-count: infinite;
  -webkit-animation-iteration-count: infinite;
  animation-duration: 2.5s;
  -webkit-animation-duration: 2.5s;

  -webkit-animation-delay: 2.5s;
  animation-delay: 2.5s;
  animation-timing-function: ease-in;
  -webkit-animation-timing-function: ease-in;

}
@keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  25% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  50% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  100% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}

@-webkit-keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  20% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  40% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  60% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  80% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  95% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
}

I actually came here trying to figure out how to put a delay in the animation, when I realized that you just 1. extend the duration of the animation and shirt the proportion of time for each animation. Beore I had them each lasting .5 seconds for the total duration of 2.5 seconds. Now lets say i wanted to add a delay equal to the total duration, so a 2.5 second delay.

You animation time is 2.5 seconds and delay is 2.5, so you change duration to 5 seconds. However, because you doubled the total duration, you'll want to halve the animations proportion. Check the final below. This worked perfectly for me.

@-webkit-keyframes dance {
  0% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  10% {
    -webkit-transform: rotate(20deg);
    -moz-transform: rotate(20deg);
    -o-transform: rotate(20deg);
    -ms-transform: rotate(20deg);
    transform: rotate(20deg);
  }
  20% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  30% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
  40% {
    -webkit-transform: rotate(-120deg);
    -moz-transform: rotate(-120deg);
    -o-transform: rotate(-120deg);
    -ms-transform: rotate(-120deg);
    transform: rotate(-120deg);
  }
  50% {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    transform: rotate(0deg);
  }
}

In sum:

These are the calcultions you'd probably use to figure out how to change you animation's duration and the % of each part.

desired_duration = x

desired_duration = animation_part_duration1 + animation_part_duration2 + ... (and so on)

desired_delay = y

total duration = x + y

animation_part_duration1_actual = animation_part_duration1 * desired_duration / total_duration

My explanation uses elementary building blocks that helped me to understand. Note I am leveraging @Deepak Goyal's answer above since he provided clarity:

We were given a logical 32-bit address space (i.e. We have a 32 bit computer)

Consider a system with a 32-bit logical address space

• This means that every memory address can be 32 bits long.
• "A 32-bit entry can point to one of 2^32 physical page frames"[2], stated differently,
• "A 32-bit register can store 2^32 different values"

We were also told that

each page size is 4 KB

• 1 KB (kilobyte) = 1 x 1024 bytes = 2^10 bytes
• 4 x 1024 bytes = 2^2 x 2^10 bytes => 4 KB (i.e. 2^12 bytes)
• The size of each page is thus 4 KB (Kilobytes NOT kilobits).

As Depaak said, we calculate the number of pages in the page table with this formula:

Num_Pages_in_PgTable = Total_Possible_Logical_Address_Entries / page size 
Num_Pages_in_PgTable =         2^32                           /    2^12
Num_Pages_in_PgTable = 2^20 (i.e. 1 million) 

The authors go on to give the case where each entry in the page table takes 4 bytes. That means that the total size of the page table in physical memory will be 4MB:

Memory_Required_Per_Page = Size_of_Page_Entry_in_bytes x Num_Pages_in_PgTable
Memory_Required_Per_Page =           4                 x     2^20
Memory_Required_Per_Page =     4 MB (Megabytes)

So yes, each process would require at least 4MB of memory to run, in increments of 4MB.

Example

Now if a professor wanted to make the question a bit more challenging than the explanation from the book, they might ask about a 64-bit computer. Let's say they want memory in bits. To solve the question, we'd follow the same process, only being sure to convert MB to Mbits.

Let's step through this example.

Givens:

• Logical address space: 64-bit
• Page Size: 4KB
• Entry_Size_Per_Page: 4 bytes

Recall: A 64-bit entry can point to one of 2^64 physical page frames - Since Page size is 4 KB, then we still have 2^12 byte page sizes

• 1 KB (kilobyte) = 1 x 1024 bytes = 2^10 bytes
• Size of each page = 4 x 1024 bytes = 2^2 x 2^10 bytes = 2^12 bytes

How Many pages In Page Table?

`Num_Pages_in_PgTable = Total_Possible_Logical_Address_Entries / page size 
Num_Pages_in_PgTable =         2^64                            /    2^12
Num_Pages_in_PgTable =         2^52 
Num_Pages_in_PgTable =      2^2 x 2^50 
Num_Pages_in_PgTable =       4  x 2^50 `  

How Much Memory in BITS Per Page?

Memory_Required_Per_Page = Size_of_Page_Entry_in_bytes x Num_Pages_in_PgTable 
Memory_Required_Per_Page =   4 bytes x 8 bits/byte    x     2^52
Memory_Required_Per_Page =     32 bits                x   2^2 x 2^50
Memory_Required_Per_Page =     32 bits                x    4  x 2^50
Memory_Required_Per_Page =     128 Petabits

[2]: Operating System Concepts (9th Ed) - Gagne, Silberschatz, and Galvin

Given the R data.frame:

> df1
  a b c
1 1 1 0
2 1 0 0
3 0 1 0
4 0 0 0

Shuffle row-wise:

> df2 <- df1[sample(nrow(df1)),]
> df2
  a b c
3 0 1 0
4 0 0 0
2 1 0 0
1 1 1 0

By default sample() randomly reorders the elements passed as the first argument. This means that the default size is the size of the passed array. Passing parameter replace=FALSE (the default) to sample(...) ensures that sampling is done without replacement which accomplishes a row wise shuffle.

Shuffle column-wise:

> df3 <- df1[,sample(ncol(df1))]
> df3
  c a b
1 0 1 1
2 0 1 0
3 0 0 1
4 0 0 0

Try this and then tell me the results:

UPDATE File1 AS B                          
SET    b.campo1 = (SELECT DISTINCT A.campo1
                   FROM  File2 A           
                   INNER JOIN File1      
                   ON A.campo2 = File1.campo2 
                   AND A.campo2 = B.campo2) 

obj= Model.objects.filter(testfield=12).order_by('-id')[0]

You can use as.data.frame or print.data.frame.

If you want this to be the default, you can change the value of the dplyr.print_max option.

options(dplyr.print_max = 1e9)

As many of the answer suggesting better solution is to use ArrayList. ArrayList size is not fixed and it is easily manageable.

It is resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods to manipulate the size of the array that is used internally to store the list.

Each ArrayList instance has a capacity. The capacity is the size of the array used to store the elements in the list. It is always at least as large as the list size. As elements are added to an ArrayList, its capacity grows automatically.

Note that this implementation is not synchronized.

ArrayList<String> scripts = new ArrayList<String>();
scripts.add("test1");
scripts.add("test2");
scripts.add("test3");

One way to do this with MS Access is with a subquery but it does not have anything like the same functionality:

SELECT a.ID, 
       a.AText, 
       (SELECT Count(ID) 
        FROM table1 b WHERE b.ID <= a.ID 
        AND b.AText Like "*a*") AS RowNo
FROM Table1 AS a
WHERE a.AText Like "*a*"
ORDER BY a.ID;

If you are using Excel 2013 Than do the following File > Option > Advanced > Under Display options for this worksheet: uncheck the checkbox before Show formulas in cells instead of their calculated results This should resolve the issue.

You can use as keyword to refer a collection under a ng-repeat element:

<table>
    <tr ng-repeat="task in tasks | filter:category | filter:query as res">
        <td>{{task.id}}</td>
        <td>{{task.description}}</td>
    </tr>
    <tr ng-if="res.length === 0">
        <td colspan="2">no results</td>
    </tr>
</table>

I got the same error (TypeError: 'int' object is not callable)

def xlim(i,k,s1,s2):
   x=i/(2*k)
   xl=x*(1-s2*x-s1*(1-x)) / (1-s2*x**2-2*s1*x(1-x))
   return xl 
... ... ... ... 

>>> xlim(1,100,0,0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 3, in xlim
TypeError: 'int' object is not callable

after reading this post I realized that I forgot a multiplication sign * so

def xlim(i,k,s1,s2):
   x=i/(2*k)
   xl=x*(1-s2*x-s1*(1-x)) / (1-s2*x**2-2*s1*x * (1-x))
   return xl 

xlim(1.0,100.0,0.0,0.0)
0.005

tanks

check this is useful for you...

public void setCustomTitle (View customTitleView)

you get detail from following link.

http://developer.android.com/reference/android/app/AlertDialog.Builder.html#setCustomTitle%28android.view.View%29

CustomDialog.java

Dialog alert = new Dialog(this);
    alert.requestWindowFeature(Window.FEATURE_NO_TITLE);
    alert.setContentView(R.layout.title);
    TextView msg = (TextView)alert.findViewById(R.id.textView1);
    msg.setText("Hello Friends.\nIP address : 111.111.1.111");
    alert.show();

title.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Set IP address"
    android:textColor="#ff0000"
    android:textAppearance="?android:attr/textAppearanceLarge" />

<ImageView 
    android:layout_width="fill_parent"
    android:layout_height="2dp"
    android:layout_marginTop="5dp"
    android:background="#00ff00"
    />
<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textColor="#775500"
    android:textAppearance="?android:attr/textAppearanceLarge" />

Firstly, I would try a non-secure websocket connection. So remove one of the s's from the connection address:

conn = new WebSocket('ws://localhost:8080');

If that doesn't work, then the next thing I would check is your server's firewall settings. You need to open port 8080 both in TCP_IN and TCP_OUT.

This is another issue related to invalid property values in an Angular Typescript request.

This is was related to the conversion between a Typescript number to an int(Int32) in C#. I was using Ticks (UTC milliseconds) which is larger than the signed, Int32 range (int in C#). Changed the C# model from int to long and everything worked fine.

My most preferred way is,

var objectKeysArray = Object.keys(yourJsonObj)
objectKeysArray.forEach(function(objKey) {
    var objValue = yourJsonObj[objKey]
})

It seems that this is the correct way window.location.assign("http://www.mozilla.org");

• https://developer.mozilla.org/en-US/docs/Web/API/Window/location
• https://www.w3schools.com/js/js_window_location.asp
• https://jstricks.com/javascript-redirect-page-redirection/

To understand the difference between a simulator and an emulator, keep in mind that a simulator tries to mimic the behavior of a real device. For example, in the case of the iOS Simulator, it simulates the real behavior of an actual iPhone/iPad device. However, the Simulator itself uses the various libraries installed on the Mac (such as QuickTime) to perform its rendering so that the effect looks the same as an actual iPhone. In addition, applications tested on the Simulator are compiled into x86 code, which is the byte-code understood by the Simulator. A real iPhone device, conversely, uses ARM-based code.

In contrast, an emulator emulates the working of a real device. Applications tested on an emulator are compiled into the actual byte-code used by the real device. The emulator executes the application by translating the byte-code into a form that can be executed by the host computer running the emulator.

To understand the subtle difference between simulation and emulation, imagine you are trying to convince a child that playing with knives is dangerous. To simulate this, you pretend to cut yourself with a knife and groan in pain. To emulate this, you actually cut yourself.

TempData is also a dictionary object that stays for the time of an HTTP Request. So, TempData can be used to maintain data between one controller action to the other controller action.

TempData is used to check the null values each time. TempData contain two method keep() and peek() for maintain data state from one controller action to others.

When TempDataDictionary object is read, At the end of request marks as deletion to current read object.

The keep() and peek() method is used to read the data without deletion the current read object.

You can use Peek() when you always want to hold/prevent the value for another request. You can use Keep() when prevent/hold the value depends on additional logic.

Overloading in TempData.Peek() & TempData.Keep() as given below.

TempData.Keep() have 2 overloaded methods.

1. void keep() : That menace all the data not deleted on current request completion.

2. void keep(string key) : persist the specific item in TempData with help of name.

TempData.Peek() no overloaded methods.

1. object peek(string key) : return an object that contain items with specific key without making key for deletion.

Example for return type of TempData.Keep() & TempData.Peek() methods as given below.

public void Keep(string key) { _retainedKeys.Add(key); }

public object Peek(string key) { object value = values; return value; }

I have the following solution. It captures the exit code, the stdout, and the stderr too of the executed external command:

import shlex
from subprocess import Popen, PIPE

def get_exitcode_stdout_stderr(cmd):
    """
    Execute the external command and get its exitcode, stdout and stderr.
    """
    args = shlex.split(cmd)

    proc = Popen(args, stdout=PIPE, stderr=PIPE)
    out, err = proc.communicate()
    exitcode = proc.returncode
    #
    return exitcode, out, err

cmd = "..."  # arbitrary external command, e.g. "python mytest.py"
exitcode, out, err = get_exitcode_stdout_stderr(cmd)

I also have a blog post on it here.

Edit: the solution was updated to a newer one that doesn't need to write to temp. files.

I took couple of ideas from your answers and I don't know how to make it shorter :)

import pandas as pd
from sklearn.datasets import load_iris
iris = load_iris()
df = pd.DataFrame(iris.data, columns=iris['feature_names'])
df['target'] = iris['target']

This gives a Pandas DataFrame with feature_names plus target as columns and RangeIndex(start=0, stop=len(df), step=1). I would like to have a shorter code where I can have 'target' added directly.

For me, the simplest solution was to use the variable inside a (()) expression, as so:

if ((VAR > 0))
then
  echo "$VAR is a positive integer."
fi

Of course, this solution is only valid if a value of zero doesn't make sense for your application. That happened to be true in my case, and this is much simpler than the other solutions.

As pointed out in the comments, this can make you subject to a code execution attack: The (( )) operator evaluates VAR, as stated in the Arithmetic Evaluation section of the bash(1) man page. Therefore, you should not use this technique when the source of the contents of VAR is uncertain (nor should you use ANY other form of variable expansion, of course).

=$W$4<=TODAY()

Returns true for dates up to and including today, false otherwise.

There is also interactive mode:

git add -i

Choose option 3 to un add files. In my case I often want to add more than one file, and with interactive mode you can use numbers like this to add files. This will take all but 4: 1, 2, 3, and 5

To choose a sequence, just type 1-5 to take all from 1 to 5.

Git staging files

You could use the stopifnot() function if you want the program to produce an error:

foo <- function(x) {
    stopifnot(x > 500)
    # rest of program
}

With WinForms you can use the ErrorProvider in conjunction with the Validating event to handle the validation of user input. The Validating event provides the hook to perform the validation and ErrorProvider gives a nice consistent approach to providing the user with feedback on any error conditions.

http://msdn.microsoft.com/en-us/library/system.windows.forms.errorprovider.aspx

IBAction and IBOutlet are macros defined to denote variables and methods that can be referred to in Interface Builder.

IBAction resolves to void and IBOutlet resolves to nothing, but they signify to Xcode and Interface builder that these variables and methods can be used in Interface builder to link UI elements to your code.

If you're not going to be using Interface Builder at all, then you don't need them in your code, but if you are going to use it, then you need to specify IBAction for methods that will be used in IB and IBOutlet for objects that will be used in IB.

You need to write it this way

<div 
    className="player"
    style={{ position: "absolute" }}
    onKeyDown={this.onKeyPressed}
    tabIndex="0"
  >

If onKeyPressed is not bound to this, then try to rewrite it using arrow function or bind it in the component constructor.

To find diff use this command:

diff -qr dir1/ dir2/

-r will diff all subdirectories too -q tells diff to report only when files differ.

diff  --brief dir1/ dir2/

--brief will show the files that dosent exist in directory.

Or else

we can use Meld which will show in graphical window its easy to find the difference.

meld  dir1/ dir2/

Use the code

x = seq(0,100,5) #this means (starting number, ending number, interval)

the output will be

[1]   0   5  10  15  20  25  30  35  40  45  50  55  60  65  70  75
[17]  80  85  90  95 100

There's an official gulp recipe for this using minimist.

https://github.com/gulpjs/gulp/blob/master/docs/recipes/pass-arguments-from-cli.md

The basics are using minimist to separate the cli arguments and combine them with known options:

var options = minimist(process.argv.slice(2), knownOptions);

Which would parse something like

$ gulp scripts --env development

More complete info in the recipe.

In my case none of the answers above solved my problem completely. I ended up using the (no-sandbox) mode, the connection with extended timeout period (driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), capability, TimeSpan.FromMinutes(3));) and the page load timeout (driver.Manage().Timeouts().PageLoad.Add(System.TimeSpan.FromSeconds(30));) so now my code looks like this:

    public IWebDriver GetRemoteChromeDriver(string downloadPath)
    {
        ChromeOptions chromeOptions = new ChromeOptions();
        chromeOptions.AddArguments(
            "start-maximized",
            "enable-automation",
            "--headless",
            "--no-sandbox", //this is the relevant other arguments came from solving other issues
            "--disable-infobars",
            "--disable-dev-shm-usage",
            "--disable-browser-side-navigation",
            "--disable-gpu",
            "--ignore-certificate-errors");
        capability = chromeOptions.ToCapabilities();

        SetRemoteWebDriver();
        SetImplicitlyWait();
        Thread.Sleep(TimeSpan.FromSeconds(2));
        return driver;
    }
    
    private void SetImplicitlyWait()
    {
        driver.Manage().Timeouts().PageLoad.Add(TimeSpan.FromSeconds(30));
    }


    private void SetRemoteWebDriver()
    {
        driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), capability, TimeSpan.FromMinutes(3));
    }

But as I mentioned none of the above method solved my problem, I was continuously get the error, and multiple chromedriver.exe and chrome.exe processses were active (~10 of the chromedriver and ~50 of chrome).

So somewhere I read that after disposing the driver I should wait a few seconds before starting the next test, so I added the following line to dispose method:

    driver?.Quit();
    driver?.Dispose();
    Thread.Sleep(3000);

With this sleep modification I have no longer get the timeout error and there is no unnecessarily opened chromedriver.exe and chrome.exe processses.

I hope I helped someone who struggles with this issue for that long as I did.

You can also compare with wildcards:

if [[ "$LIST" == *"$SOURCE"* ]]

Thanks Marcus! It works on 2.3 smoothly by fixing some syntax errors, here's the fixed code

    protected void setMenuBackground() {
    getLayoutInflater().setFactory(new Factory() {

        @Override
        public View onCreateView(final String name, final Context context,
                final AttributeSet attrs) {

            if (name.equalsIgnoreCase("com.android.internal.view.menu.IconMenuItemView")) {

                try { // Ask our inflater to create the view
                    final LayoutInflater f = getLayoutInflater();
                    final View[] view = new View[1];
                    try {
                        view[0] = f.createView(name, null, attrs);
                    } catch (InflateException e) {
                        hackAndroid23(name, attrs, f, view);
                    }
                    // Kind of apply our own background
                    new Handler().post(new Runnable() {
                        public void run() {
                            view[0].setBackgroundColor(Color.WHITE);

                        }
                    });
                    return view[0];
                } catch (InflateException e) {
                } catch (ClassNotFoundException e) {

                }
            }
            return null;
        }
    });
}

static void hackAndroid23(final String name,
        final android.util.AttributeSet attrs, final LayoutInflater f,
        final View[] view) {
    // mConstructorArgs[0] is only non-null during a running call to
    // inflate()
    // so we make a call to inflate() and inside that call our dully
    // XmlPullParser get's called
    // and inside that it will work to call
    // "f.createView( name, null, attrs );"!
    try {
        f.inflate(new XmlPullParser() {
            @Override
            public int next() throws XmlPullParserException, IOException {
                try {
                    view[0] = (TextView) f.createView(name, null, attrs);
                } catch (InflateException e) {
                } catch (ClassNotFoundException e) {
                }
                throw new XmlPullParserException("exit");
            }
        }, null, false);
    } catch (InflateException e1) {
        // "exit" ignored
    }
}

In the latest version of JAVA this is how you do it:

nir.length //is the first dimension
nir[0].length //is the second dimension

XCODE 8.2 AND SWIFT 3.0

Present an exist UIViewController

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.present(loginVC, animated: true, completion: nil)

Push an exist UIViewController

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.navigationController?.pushViewController(loginVC, animated: true)

Remember that you can put the UIViewController Identifier following the next steps:

• Select Main.storyboard
• Select your UIViewController
• Search the Utilities in the right
• Select the identity inspector
• Search in section identity "Storyboard ID"
• Put the Identifier for your UIViewController

Your app is crashing at:

welcomePlayer.setText("Welcome Back, " + String.valueOf(mPlayer.getName(this)) + " !");

because mPlayer=null.

You forgot to initialize Player mPlayer in your PlayGame Activity.

mPlayer = new Player(context,"");

As of Spring 4.2.x, you can create custom mapping annotations, using @RequestMapping as a meta-annotation. So:

Is there a way to produce a "composite/inherited/aggregated" annotation with default values for consumes and produces, such that I could instead write something like:

@JSONRequestMapping(value = "/foo", method = RequestMethod.POST)

Yes, there is such a way. You can create a meta annotation like following:

@Target({ElementType.METHOD, ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@RequestMapping(consumes = "application/json", produces = "application/json")
public @interface JsonRequestMapping {
    @AliasFor(annotation = RequestMapping.class, attribute = "value")
    String[] value() default {};

    @AliasFor(annotation = RequestMapping.class, attribute = "method")
    RequestMethod[] method() default {};

    @AliasFor(annotation = RequestMapping.class, attribute = "params")
    String[] params() default {};

    @AliasFor(annotation = RequestMapping.class, attribute = "headers")
    String[] headers() default {};

    @AliasFor(annotation = RequestMapping.class, attribute = "consumes")
    String[] consumes() default {};

    @AliasFor(annotation = RequestMapping.class, attribute = "produces")
    String[] produces() default {};
}

Then you can use the default settings or even override them as you want:

@JsonRequestMapping(method = POST)
public String defaultSettings() {
    return "Default settings";
}

@JsonRequestMapping(value = "/override", method = PUT, produces = "text/plain")
public String overrideSome(@RequestBody String json) {
    return json;
}

You can read more about AliasFor in spring's javadoc and github wiki.

Not in bash (that I know of), but:

cp `ls | grep -v Music` /target_directory

I know this is not exactly what you were looking for, but it will solve your example.

jQuery provides a .text() method that can be used in any browser. For example:

$('#myElement').text("Foo");

Now in ES6 you can create lazy cached properties. On first use the property evaluates once to become a normal static property. Result: The second time the math function overhead is skipped.

The magic is in the getter.

const foo = {
    a: 5,
    b: 6,
    get c() {
        delete this.c;
        return this.c = this.a + this.b
    }
};

In the arrow getter this picks up the surrounding lexical scope.

foo     // {a: 5, b: 6}
foo.c   // 11
foo     // {a: 5, b: 6 , c: 11}  

GitHub is a great tool in-all for making repositories. However, it does not do good with private repositories.

You're forced to pay for private repositories unless you get some sort of plan. I have a couple of projects so far, and if GitHub doesn't do what I want I just go to Bitbucket. It's a bit harder to work with than GitHub, however it's unlimited free repositories.

3 - It doesn't matter.

BUT, I tend to only use a <span> inside an <a> if it's only for a part of the contents of the tag i.e.

<a href="#">some <span class="red">text</span></a>

Rather than:

<a href="#"><span class="red">some text</span></a>

Which should obviously just be:

<a href="#" class="red">some text</a>

if you are inside the actual function, you can use arguments.callee as a reference to the function. as in:

button.addEventListener('click', function() {
      ///this will execute only once
      alert('only once!');
      this.removeEventListener('click', arguments.callee);
});

EDIT: This will not work if you are working in strict mode ("use strict";)

There is no bidirectional map in the Java Standard API. Either you can maintain two maps yourself or use the BidiMap from Apache Collections.

Static methods cannot be inherited or overridden, and that is why they can't be abstract. Since static methods are defined on the type, not the instance, of a class, they must be called explicitly on that type. So when you want to call a method on a child class, you need to use its name to call it. This makes inheritance irrelevant.

Assume you could, for a moment, inherit static methods. Imagine this scenario:

public static class Base
{
    public static virtual int GetNumber() { return 5; }
}

public static class Child1 : Base
{
    public static override int GetNumber() { return 1; }
}

public static class Child2 : Base
{
    public static override int GetNumber() { return 2; }
}

If you call Base.GetNumber(), which method would be called? Which value returned? It's pretty easy to see that without creating instances of objects, inheritance is rather hard. Abstract methods without inheritance are just methods that don't have a body, so can't be called.

I don't think it's possible.

You can use mysqldump to dump the data and then create a schema with your new name and then dump the data into that new database.

Program prints ab, goes back one character and prints si overwriting the b resulting asi. Carriage return returns the caret to the first column of the current line. That means the ha will be printed over as and the result is hai

Maybe not on Laravel 4 this time, but on L5.2* I had similar issue:

I simply changed the ownership of the storage/logs directory to www-data with:

# chown -R www-data:www-data logs

PS: This is on Ubuntu 15 and with apache.

My logs directory now looks like:

drwxrwxr-x  2 www-data   www-data 4096 jaan  23 09:39 logs/

http://pinvoke.net/default.aspx/user32.EnumDesktopWindows

There is an example of using user.dll's EnumWindow in C# to list all open windows.

How about something like this?

var pathArray = $('input[type=file]').val().split('\\');
alert(pathArray[pathArray.length - 1]);

Using ternary operator:

message = "blah" if 'key1' in dict else "booh"
print(message)

char variable = 'x';  // the variable is a char whose value is lowercase x

printf("<%c>", variable); // print it with angle brackets around the character

Since you're using SQL Server 2008, you have the geography data type available, which is designed for exactly this kind of data:

DECLARE @source geography = 'POINT(0 51.5)'
DECLARE @target geography = 'POINT(-3 56)'

SELECT @source.STDistance(@target)

Gives

----------------------
538404.100197555

(1 row(s) affected)

Telling us it is about 538 km from (near) London to (near) Edinburgh.

Naturally there will be an amount of learning to do first, but once you know it it's far far easier than implementing your own Haversine calculation; plus you get a LOT of functionality.

If you want to retain your existing data structure, you can still use STDistance, by constructing suitable geography instances using the Point method:

DECLARE @orig_lat DECIMAL(12, 9)
DECLARE @orig_lng DECIMAL(12, 9)
SET @orig_lat=53.381538 set @orig_lng=-1.463526

DECLARE @orig geography = geography::Point(@orig_lat, @orig_lng, 4326);

SELECT *,
    @orig.STDistance(geography::Point(dest.Latitude, dest.Longitude, 4326)) 
       AS distance
--INTO #includeDistances
FROM #orig dest

A more elegant approach to build bigrams with python’s builtin zip(). Simply convert the original string into a list by split(), then pass the list once normally and once offset by one element.

string = "I really like python, it's pretty awesome."

def find_bigrams(s):
    input_list = s.split(" ")
    return zip(input_list, input_list[1:])

def find_ngrams(s, n):
  input_list = s.split(" ")
  return zip(*[input_list[i:] for i in range(n)])

find_bigrams(string)

[('I', 'really'), ('really', 'like'), ('like', 'python,'), ('python,', "it's"), ("it's", 'pretty'), ('pretty', 'awesome.')]

The command is

SHOW PROCESSLIST

Unfortunately, it has no narrowing parameters. If you need them you can do it from the command line:

mysqladmin processlist | grep database-name

The instances of the new HttpHeader class are immutable objects. Invoking class methods will return a new instance as result. So basically, you need to do the following:

let headers = new HttpHeaders();
headers = headers.set('Content-Type', 'application/json; charset=utf-8');

or

const headers = new HttpHeaders({'Content-Type':'application/json; charset=utf-8'});

Update: adding multiple headers

let headers = new HttpHeaders();
headers = headers.set('h1', 'v1').set('h2','v2');

or

const headers = new HttpHeaders({'h1':'v1','h2':'v2'});

Update: accept object map for HttpClient headers & params

Since 5.0.0-beta.6 is now possible to skip the creation of a HttpHeaders object an directly pass an object map as argument. So now its possible to do the following:

http.get('someurl',{
   headers: {'header1':'value1','header2':'value2'}
});

var doc = new DOMParser().parseFromString(html, "text/html");
var links = doc.querySelectorAll("a");

A component cannot update its own props unless they are arrays or objects (having a component update its own props even if possible is an anti-pattern), but can update its state and the props of its children.

For instance, a Dashboard has a speed field in its state, and passes it to a Gauge child thats displays this speed. Its render method is just return <Gauge speed={this.state.speed} />. When the Dashboard calls this.setState({speed: this.state.speed + 1}), the Gauge is re-rendered with the new value for speed.

Just before this happens, Gauge's componentWillReceiveProps is called, so that the Gauge has a chance to compare the new value to the old one.

Another option:

$("#<%=dropDownId.ClientID%>").children("option:selected").val();

$('body').bind('beforeunload',function(){
   //do something
});

But this wont save any info for later, unless you were planning on saving that in a cookie somewhere (or local storage) and the unload event does not always fire in all browsers.

Example: http://jsfiddle.net/maniator/qpK7Y/

Code:

$(window).bind('beforeunload',function(){

     //save info somewhere

    return 'are you sure you want to leave?';

});

Name and datatype:

USE OurDatabaseName
GO

SELECT 
    sc.name AS [Columne Name], 
    st1.name AS [User Type],
    st2.name AS [Base Type]
FROM dbo.syscolumns sc
    INNER JOIN dbo.systypes st1 ON st1.xusertype = sc.xusertype
    INNER JOIN dbo.systypes st2 ON st2.xusertype = sc.xtype
-- STEP TWO: Change OurTableName to the table name
WHERE sc.id = OBJECT_ID('OurTableName')
ORDER BY sc.colid

Or:

SELECT COLUMN_NAME AS ColumnName, DATA_TYPE AS DataType, CHARACTER_MAXIMUM_LENGTH AS CharacterLength
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'OurTableName'

Your getElementById is looking for an element with id "myclass", but in your html the id of the DIV is showhide. Change to:

<script>
function changeclass() {

var NAME = document.getElementById("showhide")

NAME.className="mynewclass"

} 
</script>

Unless you are trying to target a different element with the id "myclass", then you need to make sure such an element exists.

You can try to implement Cloneable and use the clone() method; however, if you use the clone method you should - by standard - ALWAYS override Object's public Object clone() method.

Just for reference I've seen this format used:

Date.UTC(2017,2,22)

It works with JSONP which is supported by the $.getJSON() function. Not sure I would go so far as to recommend this approach... just throwing it out there as a possibility because people are doing it this way.

FWIW: Never use seconds since epoch in a communication protocol, nor milliseconds since epoch, because these are fraught with danger thanks to the randomized implementation of leap seconds (you have no idea whether sender and receiver both properly implement UTC leap seconds).

Kind of a pet hate, but many people believe that UTC is just the new name for GMT -- wrong! If your system does not implement leap seconds then you are using GMT (often called UTC despite being incorrect). If you do fully implement leap seconds you really are using UTC. Future leap seconds cannot be known; they get published by the IERS as necessary and require constant updates. If you are running a system that attempts to implement leap seconds but contains and out-of-date reference table (more common than you might think) then you have neither GMT, nor UTC, you have a wonky system pretending to be UTC.

These date counters are only compatible when expressed in a broken down format (y, m, d, etc). They are NEVER compatible in an epoch format. Keep that in mind.

There can be many duplicate links together with both external and internal links. To differentiate between the two and just get unique links using sets:

# Python 3.
import urllib    
from bs4 import BeautifulSoup

url = "http://www.espncricinfo.com/"
resp = urllib.request.urlopen(url)
# Get server encoding per recommendation of Martijn Pieters.
soup = BeautifulSoup(resp, from_encoding=resp.info().get_param('charset'))  
external_links = set()
internal_links = set()
for line in soup.find_all('a'):
    link = line.get('href')
    if not link:
        continue
    if link.startswith('http'):
        external_links.add(link)
    else:
        internal_links.add(link)

# Depending on usage, full internal links may be preferred.
full_internal_links = {
    urllib.parse.urljoin(url, internal_link) 
    for internal_link in internal_links
}

# Print all unique external and full internal links.
for link in external_links.union(full_internal_links):
    print(link)

Using pygame on any platform

The advantage of using pygame is that it can be made to work on any OS platform. Below example code is for GNU/Linux though.

First install the pygame module for python3 as explained in detail here.

$ sudo pip3 install pygame

The pygame module can play .wav and .ogg files from any file location. Here is an example:

#!/usr/bin/env python3
import pygame
pygame.mixer.init()
sound = pygame.mixer.Sound('/usr/share/sounds/freedesktop/stereo/phone-incoming-call.oga')
sound.play()

Whilst looking for a solution some time back, I found a similar script to the below, which after some tweaking I got working for me.

It handles two images, that almost always default to "off", where the mouse is off the image (image-example_off.jpg), and the occasional "on", where for the times the mouse is hovered, the required alternative image (image-example_on.jpg) is displayed.

<script type="text/javascript">        
    $(document).ready(function() {        
        $("img", this).hover(swapImageIn, swapImageOut);

        function swapImageIn(e) {
            this.src = this.src.replace("_off", "_on");
        }
        function swapImageOut (e) {
            this.src = this.src.replace("_on", "_off");
        }
    });
</script>

-eq is the shell comparison operator for comparing integers. For comparing strings you need to use =.

If you want to add magic comments on all the source files of a project easily, you can use the magic_encoding gem

sudo gem install magic_encoding

then just call magic_encoding in the terminal from the root of your app.

I had a runtime error in Startup.cs. Schoolboy error - I made a small tweak to that file, but didn't run my app locally before deploying to Azure. The app didn't startup successfully and I got the 500.30 error page.

From XAMPP Application window (manager-osx) click => Open Application Folder >> htdocs

Now you opened your target folder.

You can see process by image below

XAMPP Application window (manager-osx)

Open Application Folder

Application (xamppfiles) folder opened

Click on 'htdocs'

Your target folder 'htdocs' opened

Now begin your development

This is what I found:

//First, start with a particular time
var date = new Date();

//Add two hours
var dd = date.setHours(date.getHours() + 2);

//Go back 3 days
var dd = date.setDate(date.getDate() - 3);

//One minute ago...
var dd = date.setMinutes(date.getMinutes() - 1);

//Display the date:
var monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
var date = new Date(dd);
var day = date.getDate();
var monthIndex = date.getMonth();
var year = date.getFullYear();
var displayDate = monthNames[monthIndex] + ' ' + day + ', ' + year;
alert('Date is now: ' + displayDate);

Sources:

http://www.javascriptcookbook.com/article/Perform-date-manipulations-based-on-adding-or-subtracting-time/

https://stackoverflow.com/a/12798270/1873386

There are 2 differences:

2 methods creating a user and granting some privileges to him

create user userName identified by password;
grant connect to userName;

and

grant connect to userName identified by password;

do exactly the same. It creates a user and grants him the connect role.

different outcome

resource is a role in oracle, which gives you the right to create objects (tables, procedures, some more but no views!). ALL PRIVILEGES grants a lot more of system privileges.

To grant a user all privileges run you first snippet or

grant all privileges to userName identified by password;

Now I got it working (after removing the header command). I think the problem was that the encoding of the php file was in ISO-8859-1. I set it to UTF-8 without BOM. I thought I already have done that, but perhaps I made an additional undo.

Furthermore, I used SET NAMES 'utf8' for the database. Now it is also correct in the database.

string[] servers = new string[] {
        "nist1-ny.ustiming.org",
        "nist1-nj.ustiming.org",
        "nist1-pa.ustiming.org",
        "time-a.nist.gov",
        "time-b.nist.gov",
        "nist1.aol-va.symmetricom.com",
        "nist1.columbiacountyga.gov",
        "nist1-chi.ustiming.org",
        "nist.expertsmi.com",
        "nist.netservicesgroup.com"
        };
string dateStart, dateEnd;

void SetDateToday()
    {
        Random rnd = new Random();
        DateTime result = new DateTime();
        int found = 0;
        foreach (string server in servers.OrderBy(s => rnd.NextDouble()).Take(5))
        {
            Console.Write(".");
            try
            {
                string serverResponse = string.Empty;
                using (var reader = new StreamReader(new System.Net.Sockets.TcpClient(server, 13).GetStream()))
                {
                    serverResponse = reader.ReadToEnd();
                    Console.WriteLine(serverResponse);
                }

                if (!string.IsNullOrEmpty(serverResponse))
                {
                    string[] tokens = serverResponse.Split(' ');
                    string[] date = tokens[1].Split(' ');
                    string time = tokens[2];
                    string properTime;

                    dateStart = date[2] + "/" + date[0] + "/" + date[1];

                    int month = Convert.ToInt16(date[0]), day = Convert.ToInt16(date[2]), year = Convert.ToInt16(date[1]);
                    day = day + 30;
                    if ((month % 2) == 0)
                    {
                        //MAX DAYS IS 30
                        if (day > 30)
                        {
                            day = day - 30;
                            month++;
                            if (month > 12)
                            {
                                month = 1;
                                year++;
                            }
                        }
                    }
                    else
                    {
                        //MAX DAYS IS 31
                        if (day > 31)
                        {
                            day = day - 31;
                            month++;
                            if (month > 12)
                            {
                                month = 1;
                                year++;
                            }
                        }
                    }
                    string sday, smonth;
                    if (day < 10)
                    {
                        sday = "0" + day;
                    }
                    if (month < 10)
                    {
                        smonth = "0" + month;
                    }
                    dateEnd = sday + "/" + smonth + "/" + year.ToString();

                }

            }
            catch
            {
                // Ignore exception and try the next server
            }
        }
        if (found == 0)
        {
            MessageBox.Show(this, "Internet Connection is required to complete Registration. Please check your internet connection and try again.", "Not connected", MessageBoxButtons.OK, MessageBoxIcon.Information);
            Success = false;
        }
    }

I saw that code in some part of some website. Doing the example above exposes a glitch: Changing the current Time and Date to the start date would prolong the application expiration.

The solution? Refer to a online time server.

CPU Virtualization is enabled by default on all MacBooks with compatible CPUs (i7 is compatible). You can try to reset PRAM if you think it was disabled somehow, but I doubt it.

I think the issue might be in the old version of OS. If your MacBook is i7, then you better upgrade OS to something newer.

That's because the response from chrome.runtime.sendMessage is asynchronous; here's the order of operations:

var newDeals = [];

// (1) first chrome.runtime.sendMessage is called, and *registers a callback*
// so that when the data comes back *in the future*
// the function will be called
chrome.runtime.sendMessage({...}, function(deals) {
  // (3) sometime in the future, this function runs,
  // but it's too late
  newDeals = deals;
});

// (2) this is called immediately, `newDeals` is an empty array
this.setState({ deals: newDeals });

When you pause the script with the debugger, you're giving the extension time to call the callback; by the time you continue, the data has arrived and it appears to work.

To fix, you want to do the setState call after the data comes back from the Chrome extension:

var newDeals = [];

// (1) first chrome.runtime.sendMessage is called, and *registers a callback*
// so that when the data comes back *in the future*
// the function will be called
chrome.runtime.sendMessage({...}, function(deals) {
  // (2) sometime in the future, this function runs
  newDeals = deals;

  // (3) now you can call `setState` with the data
  this.setState({ deals: newDeals });
}.bind(this)); // Don't forget to bind(this) (or use an arrow function)

[Edit]

If this doesn't work for you, check out the other answers on this question, which explain other reasons your component might not be updating.

You can first find the position of the string in this case ":"

'position = InStr(StringToSearch, StringToFind)
position = InStr(StringToSearch, ":")

Then use Left(StringToCut, NumberOfCharacterToCut)

Result = Left(StringToSearch, position -1)

An alternative solution is using jQuery:

    <script src="js/jquery-1.11.0.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            PrepareCheckbox();
        });
        function PrepareCheckbox(){
            document.getElementById("checkbox").checked = true;
        }
    </script>

In Mac OS X the command file -I (capital i) will give you the proper character set so long as the file you are testing contains characters outside of the basic ASCII range.

For instance if you go into Terminal and use vi to create a file eg. vi test.txt then insert some characters and include an accented character (try ALT-e followed by e) then save the file.

They type file -I text.txt and you should get a result like this:

test.txt: text/plain; charset=utf-8

You can use the sDom option for this.

Default with search input in its own div:

sDom: '<"search-box"r>lftip'

If you use jQuery UI (bjQueryUI set to true):

sDom: '<"search-box"r><"H"lf>t<"F"ip>'

The above will put the search/filtering input element into it's own div with a class named search-box that is outside of the actual table.

Even though it uses its special shorthand syntax it can actually take any HTML you throw at it.

A memory error means that your program has ran out of memory. This means that your program somehow creates too many objects.

In your example, you have to look for parts of your algorithm that could be consuming a lot of memory. I suspect that your program is given very long strings as inputs. Therefore, s[i:j+1] could be the culprit, since it creates a new list. The first time you use it though, it is not necessary because you don't use the created list. You could try to see if the following helps:

if  j + 1 < a:
    sub_strings.append(s[i:j+1])

To replace the second list creation, you should definitely use a buffer object, as suggested by glglgl.

Also note that since you use if j >= i:, you don't need to start your xrange at 0. You can have:

for i in xrange(0, a):
    for j in xrange(i, a):
        # No need for if j >= i

A more radical alternative would be to try to rework your algorithm so that you don't pre-compute all possible sub-strings. Instead, you could simply compute the substring that are asked.

My npm install worked fine, but I had this problem with npm update. To fix it, I had to run npm cache clean and then npm cache clear.

In my case (dynamically generating the sections): the issue was a missing "#" in href="#...".

Update t 
SET 
       t.Column1=100
FROM 
       myTableA t 
LEFT JOIN 
       myTableB t2 
ON 
       t2.ID=t.ID

Replace myTableA with your table name and replace Column1 with your column name.

After this simply LEFT JOIN to tableB. t in this case is just an alias for myTableA. t2 is an alias for your joined table, in my example that is myTableB. If you don't like using t or t2 use any alias name you prefer - it doesn't matter - I just happen to like using those.

officially, headers are case insensitive, however, it is common practice to capitalize the first letter of every word.
but, because it is common practice, certain programs like IE assume the headers are capitalized.
so while the docs say the are case insensitive, bad programmers have basically changed the docs.

If your project already uses commons-lang, StringUtils provide a nice method for this purpose:

String filename = "abc.def.ghi";

String start = StringUtils.substringBefore(filename, "."); // returns "abc"

see javadoc [2.6] [3.1]

These are the steps I followed and it solved the problem

1)Upgraded my Power shell from version 2 to 3

2)Closed the PM Console

3)Restarted Visual Studio

4)Ran the below command in PM Console dotnet restore

5)Add-Migration InitialMigration

It worked !!!

I would strongly suggest you start using jQuery. Your code would look like:

$(function() {
    $('form[name="myform"]').submit(function(e) {
        var username = $('form[name="myform"] input[name="username"]').val();
        if ( username == '') {
            e.preventDefault();
            $('#errors').text('*Please enter a username*');
        }
    });
});

In addition to all the above posts, here is what solved the issue for me.

Spark uses slf4j to bind to loggers. If log4j is not the first binding found, you can edit log4j.properties files all you want, the loggers are not even used. For example, this could be a possible SLF4J output:

SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/C:/Users/~/.m2/repository/org/slf4j/slf4j-simple/1.6.6/slf4j-simple-1.6.6.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: Found binding in [jar:file:/C:/Users/~/.m2/repository/org/slf4j/slf4j-log4j12/1.7.19/slf4j-log4j12-1.7.19.jar!/org/slf4j/impl/StaticLoggerBinder.class] SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation. SLF4J: Actual binding is of type [org.slf4j.impl.SimpleLoggerFactory]

So here the SimpleLoggerFactory was used, which does not care about log4j settings.

Excluding the slf4j-simple package from my project via

<dependency>
        ...
        <exclusions>
            ...
            <exclusion>
                <artifactId>slf4j-simple</artifactId>
                <groupId>org.slf4j</groupId>
            </exclusion>
        </exclusions>
    </dependency>

resolved the issue, as now the log4j logger binding is used and any setting in log4j.properties is adhered to. F.Y.I. my log4j properties file contains (besides the normal configuration)

log4j.rootLogger=WARN, stdout
...
log4j.category.org.apache.spark = WARN
log4j.category.org.apache.parquet.hadoop.ParquetRecordReader = FATAL
log4j.additivity.org.apache.parquet.hadoop.ParquetRecordReader=false
log4j.logger.org.apache.parquet.hadoop.ParquetRecordReader=OFF

Hope this helps!

As mentioned in another answer here, in Guideline 7-3 of the Java Secure Coding Guidelines, throwing an exception in the constructor of a non-final class opens a potential attack vector:

Guideline 7-3 / OBJECT-3: Defend against partially initialized instances of non-final classes When a constructor in a non-final class throws an exception, attackers can attempt to gain access to partially initialized instances of that class. Ensure that a non-final class remains totally unusable until its constructor completes successfully.

From JDK 6 on, construction of a subclassable class can be prevented by throwing an exception before the Object constructor completes. To do this, perform the checks in an expression that is evaluated in a call to this() or super().

    // non-final java.lang.ClassLoader
    public abstract class ClassLoader {
        protected ClassLoader() {
            this(securityManagerCheck());
        }
        private ClassLoader(Void ignored) {
            // ... continue initialization ...
        }
        private static Void securityManagerCheck() {
            SecurityManager security = System.getSecurityManager();
            if (security != null) {
                security.checkCreateClassLoader();
            }
            return null;
        }
    }

For compatibility with older releases, a potential solution involves the use of an initialized flag. Set the flag as the last operation in a constructor before returning successfully. All methods providing a gateway to sensitive operations must first consult the flag before proceeding:

    public abstract class ClassLoader {

        private volatile boolean initialized;

        protected ClassLoader() {
            // permission needed to create ClassLoader
            securityManagerCheck();
            init();

            // Last action of constructor.
            this.initialized = true;
        }
        protected final Class defineClass(...) {
            checkInitialized();

            // regular logic follows
            ...
        }

        private void checkInitialized() {
            if (!initialized) {
                throw new SecurityException(
                    "NonFinal not initialized"
                );
            }
        }
    }

Furthermore, any security-sensitive uses of such classes should check the state of the initialization flag. In the case of ClassLoader construction, it should check that its parent class loader is initialized.

Partially initialized instances of a non-final class can be accessed via a finalizer attack. The attacker overrides the protected finalize method in a subclass and attempts to create a new instance of that subclass. This attempt fails (in the above example, the SecurityManager check in ClassLoader's constructor throws a security exception), but the attacker simply ignores any exception and waits for the virtual machine to perform finalization on the partially initialized object. When that occurs the malicious finalize method implementation is invoked, giving the attacker access to this, a reference to the object being finalized. Although the object is only partially initialized, the attacker can still invoke methods on it, thereby circumventing the SecurityManager check. While the initialized flag does not prevent access to the partially initialized object, it does prevent methods on that object from doing anything useful for the attacker.

Use of an initialized flag, while secure, can be cumbersome. Simply ensuring that all fields in a public non-final class contain a safe value (such as null) until object initialization completes successfully can represent a reasonable alternative in classes that are not security-sensitive.

A more robust, but also more verbose, approach is to use a "pointer to implementation" (or "pimpl"). The core of the class is moved into a non-public class with the interface class forwarding method calls. Any attempts to use the class before it is fully initialized will result in a NullPointerException. This approach is also good for dealing with clone and deserialization attacks.

    public abstract class ClassLoader {

        private final ClassLoaderImpl impl;

        protected ClassLoader() {
            this.impl = new ClassLoaderImpl();
        }
        protected final Class defineClass(...) {
            return impl.defineClass(...);
        }
    }

    /* pp */ class ClassLoaderImpl {
        /* pp */ ClassLoaderImpl() {
            // permission needed to create ClassLoader
            securityManagerCheck();
            init();
        }

        /* pp */ Class defineClass(...) {
            // regular logic follows
            ...
        }
    }

If you want the timestamp for yesterday try something like:

(CURRENT_TIMESTAMP - INTERVAL '1' DAY)

No, it's not the script, it's the fact that your script is not executed by Python at all. If your script is stored in a file named script.py, you have to execute it as python script.py, otherwise the default shell will execute it and it will bail out at the from keyword. (Incidentally, from is the name of a command line utility which prints names of those who have sent mail to the given username, so that's why it tries to access the mailboxes).

Another possibility is to add the following line to the top of the script:

#!/usr/bin/env python

This will instruct your shell to execute the script via python instead of trying to interpret it on its own.

xCode is picky about the GPX file it accepts.

But, in xCode you can create a GPX file with the format it will accept:

And then just change the content of the file to the location you need.

Some time we have more spaces in between quotes, then use this approach

a = "   "
>>> bool(a)
True
>>> bool(a.strip())
False

if not a.strip():
    print("String is empty")
else:
    print("String is not empty")

Using http.createServer is very low-level and really not useful for creating web applications as-is.

A good framework to use on top of it is Express, and I would seriously suggest using it. You can install it using npm install express.

When you have, you can create a basic application to handle your form:

var express = require('express');
var bodyParser = require('body-parser');
var app     = express();

//Note that in version 4 of express, express.bodyParser() was
//deprecated in favor of a separate 'body-parser' module.
app.use(bodyParser.urlencoded({ extended: true })); 

//app.use(express.bodyParser());

app.post('/myaction', function(req, res) {
  res.send('You sent the name "' + req.body.name + '".');
});

app.listen(8080, function() {
  console.log('Server running at http://127.0.0.1:8080/');
});

You can make your form point to it using:

<form action="http://127.0.0.1:8080/myaction" method="post">

The reason you can't run Node on port 80 is because there's already a process running on that port (which is serving your index.html). You could use Express to also serve static content, like index.html, using the express.static middleware.

Ask this questions yourself? And you will decide your DB selection.

1. Do you need master-master? Then CouchDB. Mainly CouchDB supports master-master replication which anticipates nodes being disconnected for long periods of time. MongoDB would not do well in that environment.
2. Do you need MAXIMUM R/W throughput? Then MongoDB
3. Do you need ultimate single-server durability because you are only going to have a single DB server? Then CouchDB.
4. Are you storing a MASSIVE data set that needs sharding while maintaining insane throughput? Then MongoDB.
5. Do you need strong consistency of data? Then MongoDB.
6. Do you need high availability of database? Then CouchDB.
7. Are you hoping multi databases and multi tables/ collections? Then MongoDB
8. You have a mobile app offline users and want to sync their activity data to a server? Then you need CouchDB.
9. Do you need large variety of querying engine? Then MongoDB
10. Do you need large community to be using DB? Then MongoDB

This worked for me. Give it a try:

cd ~/Library/Developer/Xcode/DerivedData
xattr -rc .

Using a G Suite account

If you are using a G Suite account, anything you try will fail. At least at the time, this answer is being typed. You must use @gmail.com account, anything else like @example.com will not work.

After you use the gmail.com address. You just need to update .env as most of the people already mentioned.

MAIL_MAILER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=****@gmail.com
MAIL_PASSWORD=16digitapppassword
MAIL_ENCRYPTION=tls
MAIL_FROM_ADDRESS=****@gmail.com
MAIL_FROM_NAME="${APP_NAME}"

Don't forget to create an App password, if you don't see the option probably your 2-factor authentication is not enabled. And there is no need to allow less secure apps if you follow this approach.

In macOS for those who are using the express version 4.x.x and using the DOTENV plugin, need to use like this:

1. After installing the plugin import like the following in the file where you init the application: require('dotenv').config({path: path.resolve(__dirname+'/.env')});

2. In the root directory create a file '.env' and add the varaiable like:

   NODE_ENV=development or NODE_ENV = development

Use Reflect.ownKeys()

var obj = {a: 1, b: 2, c: 3};
Reflect.ownKeys(obj) // ["a", "b", "c"]

Object.keys and Object.getOwnPropertyNames cannot get non-enumerable properties. It's working even for non-enumerable properties.

var obj = {a: 1, b: 2, c: 3};
obj[Symbol()] = 4;
Reflect.ownKeys(obj) // ["a", "b", "c", Symbol()]

If you're writing C++, I can't recommend using the Boost libraries strongly enough.

The latest version (1.55) includes a new Predef library which covers exactly what you're looking for, along with dozens of other platform and architecture recognition macros.

#include <boost/predef.h>

// ...

#if BOOST_OS_WINDOWS

#elif BOOST_OS_LINUX

#elif BOOST_OS_MACOS

#endif

For SQL 2000 I would use:

SELECT name, crdate, refdate 
FROM sysobjects
WHERE type = 'P' 
ORDER BY refdate desc

The best way is to use the following code:

<a href="<?php echo base_url() ?>directory_name/filename.php">Link</a>

OrElse is the short-circuited equivalent of Or

I've written a library to handle this for me. It's called DataTableProxy and is available as a NuGet package. Code and documentation is on Github

As Alex Gray points out in a comment above, "all of the corresponding IDs are actually on the extensions page within the browser".

However, you must click the Developer Mode checkbox at top of Extensions page to see them.

This helped me:

        card temperaryCardFour = theDeck.get(theDeck.size() - 1);
        theDeck.remove(temperaryCardFour);    

instead of

theDeck.remove(numberNeededRemoved);

I got a removal conformation on the first snippet of code and an un removal conformation on the second.

Try switching your code with the first snippet I think that is your problem.

Nathan Nelson

cliff.meyers's original answer that suggested using <env-entry> will not help when using only System.getProperty()

According to the Tomcat 6.0 docs <env-entry> is for JNDI. So that means it won't have any effect on System.getProperty().

With the <env-entry> from cliff.meyers's example, the following code

System.getProperty("SMTP_PASSWORD");

will return null, not the value "abc123ftw".

According to the Tomcat 6 docs, to use <env-entry> you'd have to write code like this to use <env-entry>:

// Obtain our environment naming context
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");

// Look up our data source
String s = (String)envCtx.lookup("SMTP_PASSWORD");

Caveat: I have not actually tried the example above. But I have tried <env-entry> with System.getProperty(), and that definitely does not work.

Try this code:

CONVERT(varchar(15), date_started, 103)

In the default configuration of a SQL Server database, string comparisons are case-insensitive. If your database overrides this setting (through the use of an alternate collation), then you'll need to specify what sort of collation to use in your query.

SELECT * FROM myTable WHERE myField = 'sOmeVal' COLLATE SQL_Latin1_General_CP1_CI_AS

Note that the collation I provided is just an example (though it will more than likely function just fine for you). A more thorough outline of SQL Server collations can be found here.

 var myEle = document.getElementById("myElement");
    if(myEle){
        var myEleValue= myEle.value;
    }

the return of getElementById is null if an element is not actually present inside the dom, so your if statement will fail, because null is considered a false value

This might help you.

Java:

JSONArray arr = new JSONArray(result);
JSONObject jObj = arr.getJSONObject(0);
String date = jObj.getString("NeededString");

Kotlin:

val jsonArray = JSONArray(result)
val jsonObject: JSONObject = jsonArray.getJSONObject(0)
val date= jsonObject.get("NeededString")

• getJSONObject(index). In above example 0 represents index.

First, in JavaScript it's generally not a good idea to iterate over arrays using for ... in. See Why is using "for...in" with array iteration a bad idea? for details.

So you might try something like this:

var groups = {};
for (var i = 0; i < myArray.length; i++) {
  var groupName = myArray[i].group;
  if (!groups[groupName]) {
    groups[groupName] = [];
  }
  groups[groupName].push(myArray[i].color);
}
myArray = [];
for (var groupName in groups) {
  myArray.push({group: groupName, color: groups[groupName]});
}

Using the intermediary groups object here helps speed things up because it allows you to avoid nesting loops to search through the arrays. Also, because groups is an object (rather than an array) iterating over it using for ... in is appropriate.

Addendum

FWIW, if you want to avoid duplicate color entries in the resulting arrays you could add an if statement above the line groups[groupName].push(myArray[i].color); to guard against duplicates. Using jQuery it would look like this;

if (!$.inArray(myArray[i].color, groups[groupName])) {
  groups[groupName].push(myArray[i].color);
}

Without jQuery you may want to add a function that does the same thing as jQuery's inArray:

Array.prototype.contains = function(value) {
  for (var i = 0; i < this.length; i++) {
    if (this[i] === value)
      return true;
  }
  return false;
}

and then use it like this:

if (!groups[groupName].contains(myArray[i].color)) {
  groups[groupName].push(myArray[i].color);
}

Note that in either case you are going to slow things down a bit due to all the extra iteration, so if you don't need to avoid duplicate color entries in the result arrays I would recommend avoiding this extra code. There

if you use an assignment operator but use it in wrong way or in wrong place, then you'll get this types of errors!

suppose if you type:
p+1=p; you will get the error!!

you will get the same error for this:
if(ch>='a' && ch='z')
as you see can see that I i tried to assign in if() statement!!!
how silly I am!!! right??
ha ha
actually i forgot to give less then(<) sign
if(ch>='a' && ch<='z')
and got the error!!

If none of the above works, try adding

@XmlRootElement(name="Group") to the Group classs.

Note: I will elaborate more my answer for Python 3 since the end of life of Python 2 is very close.

In Python 3

bytes consists of sequences of 8-bit unsigned values, while str consists of sequences of Unicode code points that represent textual characters from human languages.

>>> # bytes
>>> b = b'h\x65llo'
>>> type(b)
<class 'bytes'>
>>> list(b)
[104, 101, 108, 108, 111]
>>> print(b)
b'hello'
>>>
>>> # str
>>> s = 'nai\u0308ve'
>>> type(s)
<class 'str'>
>>> list(s)
['n', 'a', 'i', '¨', 'v', 'e']
>>> print(s)
nai¨ve

Even though bytes and str seem to work the same way, their instances are not compatible with each other, i.e, bytes and str instances can't be used together with operators like > and +. In addition, keep in mind that comparing bytes and str instances for equality, i.e. using ==, will always evaluate to False even when they contain exactly the same characters.

>>> # concatenation
>>> b'hi' + b'bye' # this is possible
b'hibye'
>>> 'hi' + 'bye' # this is also possible
'hibye'
>>> b'hi' + 'bye' # this will fail
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't concat str to bytes
>>> 'hi' + b'bye' # this will also fail
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can only concatenate str (not "bytes") to str
>>>
>>> # comparison
>>> b'red' > b'blue' # this is possible
True
>>> 'red'> 'blue' # this is also possible
True
>>> b'red' > 'blue' # you can't compare bytes with str
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: '>' not supported between instances of 'bytes' and 'str'
>>> 'red' > b'blue' # you can't compare str with bytes
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: '>' not supported between instances of 'str' and 'bytes'
>>> b'blue' == 'red' # equality between str and bytes always evaluates to False
False
>>> b'blue' == 'blue' # equality between str and bytes always evaluates to False
False

Another issue when dealing with bytes and str is present when working with files that are returned using the open built-in function. On one hand, if you want ot read or write binary data to/from a file, always open the file using a binary mode like 'rb' or 'wb'. On the other hand, if you want to read or write Unicode data to/from a file, be aware of the default encoding of your computer, so if necessary pass the encoding parameter to avoid surprises.

In Python 2

str consists of sequences of 8-bit values, while unicode consists of sequences of Unicode characters. One thing to keep in mind is that str and unicode can be used together with operators if str only consists of 7-bit ASCI characters.

It might be useful to use helper functions to convert between str and unicode in Python 2, and between bytes and str in Python 3.

Below, I have written an answer for n equals to 5, but you can apply same approach to draw DFAs for any value of n and 'any positional number system' e.g binary, ternary...

First lean the term 'Complete DFA', A DFA defined on complete domain in d:Q × S?Q is called 'Complete DFA'. In other words we can say; in transition diagram of complete DFA there is no missing edge (e.g. from each state in Q there is one outgoing edge present for every language symbol in S). Note: Sometime we define partial DFA as d ? Q × S?Q (Read: How does “d:Q × S?Q” read in the definition of a DFA).

Design DFA accepting Binary numbers divisible by number 'n':

Step-1: When you divide a number ? by n then reminder can be either 0, 1, ..., (n - 2) or (n - 1). If remainder is 0 that means ? is divisible by n otherwise not. So, in my DFA there will be a state q_r that would be corresponding to a remainder value r, where 0 <= r <= (n - 1), and total number of states in DFA is n.
After processing a number string ? over S, the end state is q_r implies that ? % n => r (% reminder operator).

In any automata, the purpose of a state is like memory element. A state in an atomata stores some information like fan's switch that can tell whether the fan is in 'off' or in 'on' state. For n = 5, five states in DFA corresponding to five reminder information as follows:

1. State q₀ reached if reminder is 0. State q₀ is the final state(accepting state). It is also an initial state.
2. State q₁ reaches if reminder is 1, a non-final state.
3. State q₂ if reminder is 2, a non-final state.
4. State q₃ if reminder is 3, a non-final state.
5. State q₄ if reminder is 4, a non-final state.

Using above information, we can start drawing transition diagram TD of five states as follows:

Figure-1

So, 5 states for 5 remainder values. After processing a string ? if end-state becomes q₀ that means decimal equivalent of input string is divisible by 5. In above figure q₀ is marked final state as two concentric circle.
Additionally, I have defined a transition rule d:(q₀, 0)?q₀ as a self loop for symbol '0' at state q₀, this is because decimal equivalent of any string consist of only '0' is 0 and 0 is a divisible by n.

Step-2: TD above is incomplete; and can only process strings of '0's. Now add some more edges so that it can process subsequent number's strings. Check table below, shows new transition rules those can be added next step:

+-------------------------------------+
¦Number¦Binary¦Remainder(%5)¦End-state¦
+------+------+-------------+---------¦
¦One   ¦1     ¦1            ¦q1       ¦
+------+------+-------------+---------¦
¦Two   ¦10    ¦2            ¦q2       ¦
+------+------+-------------+---------¦
¦Three ¦11    ¦3            ¦q3       ¦
+------+------+-------------+---------¦
¦Four  ¦100   ¦4            ¦q4       ¦
+-------------------------------------+

1. To process binary string '1' there should be a transition rule d:(q₀, 1)?q₁
2. Two:- binary representation is '10', end-state should be q₂, and to process '10', we just need to add one more transition rule d:(q₁, 0)?q₂
   Path: ?(q₀)-1?(q₁)-0?(q₂)
3. Three:- in binary it is '11', end-state is q₃, and we need to add a transition rule d:(q₁, 1)?q₃
   Path: ?(q₀)-1?(q₁)-1?(q₃)
4. Four:- in binary '100', end-state is q₄. TD already processes prefix string '10' and we just need to add a new transition rule d:(q₂, 0)?q₄
   Path: ?(q₀)-1?(q₁)-0?(q₂)-0?(q₄)

Figure-2

Step-3: Five = 101
Above transition diagram in figure-2 is still incomplete and there are many missing edges, for an example no transition is defined for d:(q₂, 1)-?. And the rule should be present to process strings like '101'.
Because '101' = 5 is divisible by 5, and to accept '101' I will add d:(q₂, 1)?q₀ in above figure-2.
Path: ?(q₀)-1?(q₁)-0?(q₂)-1?(q₀)
with this new rule, transition diagram becomes as follows:

Figure-3

Below in each step I pick next subsequent binary number to add a missing edge until I get TD as a 'complete DFA'.

Step-4: Six = 110.

We can process '11' in present TD in figure-3 as: ?(q₀)-11?(q₃) -0?(?). Because 6 % 5 = 1 this means to add one rule d:(q₃, 0)?q₁.

Figure-4

Step-5: Seven = 111

+--------------------------------------------------------------+
¦Number¦Binary¦Remainder(%5)¦End-state¦ Path       ¦ Add       ¦
+------+------+-------------+---------+------------+-----------¦
¦Seven ¦111   ¦7 % 5 = 2    ¦q2       ¦ q0-11?q3   ¦ q3-1?q2    ¦
+--------------------------------------------------------------+

Figure-5

Step-6: Eight = 1000

+----------------------------------------------------------+
¦Number¦Binary¦Remainder(%5)¦End-state¦ Path     ¦ Add     ¦
+------+------+-------------+---------+----------+---------¦
¦Eight ¦1000  ¦8 % 5 = 3    ¦q3       ¦q0-100?q4 ¦ q4-0?q3  ¦
+----------------------------------------------------------+

Figure-6

Step-7: Nine = 1001

+----------------------------------------------------------+
¦Number¦Binary¦Remainder(%5)¦End-state¦ Path     ¦ Add     ¦
+------+------+-------------+---------+----------+---------¦
¦Nine  ¦1001  ¦9 % 5 = 4    ¦q4       ¦q0-100?q4 ¦ q4-1?q4  ¦
+----------------------------------------------------------+

Figure-7

In TD-7, total number of edges are 10 == Q × S = 5 × 2. And it is a complete DFA that can accept all possible binary strings those decimal equivalent is divisible by 5.

Design DFA accepting Ternary numbers divisible by number n:

Step-1 Exactly same as for binary, use figure-1.

Step-2 Add Zero, One, Two

+------------------------------------------------------+
¦Decimal¦Ternary¦Remainder(%5)¦End-state¦   Add        ¦
+-------+-------+-------------+---------+--------------¦
¦Zero   ¦0      ¦0            ¦q0       ¦ d:(q0,0)?q0  ¦
+-------+-------+-------------+---------+--------------¦
¦One    ¦1      ¦1            ¦q1       ¦ d:(q0,1)?q1  ¦
+-------+-------+-------------+---------+--------------¦
¦Two    ¦2      ¦2            ¦q2       ¦ d:(q0,2)?q3  ¦
+------------------------------------------------------+

Figure-8

Step-3 Add Three, Four, Five

+-----------------------------------------------------+
¦Decimal¦Ternary¦Remainder(%5)¦End-state¦  Add        ¦
+-------+-------+-------------+---------+-------------¦
¦Three  ¦10     ¦3            ¦q3       ¦ d:(q1,0)?q3 ¦
+-------+-------+-------------+---------+-------------¦
¦Four   ¦11     ¦4            ¦q4       ¦ d:(q1,1)?q4 ¦
+-------+-------+-------------+---------+-------------¦
¦Five   ¦12     ¦0            ¦q0       ¦ d:(q1,2)?q0 ¦
+-----------------------------------------------------+

Figure-9

Step-4 Add Six, Seven, Eight

+-----------------------------------------------------+
¦Decimal¦Ternary¦Remainder(%5)¦End-state¦  Add        ¦
+-------+-------+-------------+---------+-------------¦
¦Six    ¦20     ¦1            ¦q1       ¦ d:(q2,0)?q1 ¦
+-------+-------+-------------+---------+-------------¦
¦Seven  ¦21     ¦2            ¦q2       ¦ d:(q2,1)?q2 ¦
+-------+-------+-------------+---------+-------------¦
¦Eight  ¦22     ¦3            ¦q3       ¦ d:(q2,2)?q3 ¦
+-----------------------------------------------------+

Figure-10

Step-5 Add Nine, Ten, Eleven

+-----------------------------------------------------+
¦Decimal¦Ternary¦Remainder(%5)¦End-state¦  Add        ¦
+-------+-------+-------------+---------+-------------¦
¦Nine   ¦100    ¦4            ¦q4       ¦ d:(q3,0)?q4 ¦
+-------+-------+-------------+---------+-------------¦
¦Ten    ¦101    ¦0            ¦q0       ¦ d:(q3,1)?q0 ¦
+-------+-------+-------------+---------+-------------¦
¦Eleven ¦102    ¦1            ¦q1       ¦ d:(q3,2)?q1 ¦
+-----------------------------------------------------+

Figure-11

Step-6 Add Twelve, Thirteen, Fourteen

+------------------------------------------------------+
¦Decimal ¦Ternary¦Remainder(%5)¦End-state¦  Add        ¦
+--------+-------+-------------+---------+-------------¦
¦Twelve  ¦110    ¦2            ¦q2       ¦ d:(q4,0)?q2 ¦
+--------+-------+-------------+---------+-------------¦
¦Thirteen¦111    ¦3            ¦q3       ¦ d:(q4,1)?q3 ¦
+--------+-------+-------------+---------+-------------¦
¦Fourteen¦112    ¦4            ¦q4       ¦ d:(q4,2)?q4 ¦
+------------------------------------------------------+

Figure-12

Total number of edges in transition diagram figure-12 are 15 = Q × S = 5 * 3 (a complete DFA). And this DFA can accept all strings consist over {0, 1, 2} those decimal equivalent is divisible by 5.
If you notice at each step, in table there are three entries because at each step I add all possible outgoing edge from a state to make a complete DFA (and I add an edge so that q_r state gets for remainder is r)!

To add further, remember union of two regular languages are also a regular. If you need to design a DFA that accepts binary strings those decimal equivalent is either divisible by 3 or 5, then draw two separate DFAs for divisible by 3 and 5 then union both DFAs to construct target DFA (for 1 <= n <= 10 your have to union 10 DFAs).

If you are asked to draw DFA that accepts binary strings such that decimal equivalent is divisible by 5 and 3 both then you are looking for DFA of divisible by 15 ( but what about 6 and 8?).

Note: DFAs drawn with this technique will be minimized DFA only when there is no common factor between number n and base e.g. there is no between 5 and 2 in first example, or between 5 and 3 in second example, hence both DFAs constructed above are minimized DFAs. If you are interested to read further about possible mini states for number n and base b read paper: Divisibility and State Complexity.

^{below I have added a Python script, I written it for fun while learning Python library pygraphviz. I am adding it I hope it can be helpful for someone in someway.}

Design DFA for base 'b' number strings divisible by number 'n':

So we can apply above trick to draw DFA to recognize number strings in any base 'b' those are divisible a given number 'n'. In that DFA total number of states will be n (for n remainders) and number of edges should be equal to 'b' * 'n' — that is complete DFA: 'b' = number of symbols in language of DFA and 'n' = number of states.

Using above trick, below I have written a Python Script to Draw DFA for input base and number. In script, function divided_by_N populates DFA's transition rules in base * number steps. In each step-num, I convert num into number string num_s using function baseN(). To avoid processing each number string, I have used a temporary data-structure lookup_table. In each step, end-state for number string num_s is evaluated and stored in lookup_table to use in next step.

For transition graph of DFA, I have written a function draw_transition_graph using Pygraphviz library (very easy to use). To use this script you need to install graphviz. To add colorful edges in transition diagram, I randomly generates color codes for each symbol get_color_dict function.

#!/usr/bin/env python
import pygraphviz as pgv
from pprint import pprint
from random import choice as rchoice

def baseN(n, b, syms="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"):
    """ converts a number `n` into base `b` string """
    return ((n == 0) and syms[0]) or (
        baseN(n//b, b, syms).lstrip(syms[0]) + syms[n % b])

def divided_by_N(number, base):
    """
    constructs DFA that accepts given `base` number strings
    those are divisible by a given `number`
    """
    ACCEPTING_STATE = START_STATE = '0'
    SYMBOL_0 = '0'
    dfa = {
        str(from_state): {
            str(symbol): 'to_state' for symbol in range(base)
        }
        for from_state in range(number)
    }
    dfa[START_STATE][SYMBOL_0] = ACCEPTING_STATE
    # `lookup_table` keeps track: 'number string' -->[dfa]--> 'end_state'
    lookup_table = { SYMBOL_0: ACCEPTING_STATE }.setdefault
    for num in range(number * base):
        end_state = str(num % number)
        num_s = baseN(num, base)
        before_end_state = lookup_table(num_s[:-1], START_STATE)
        dfa[before_end_state][num_s[-1]] = end_state
        lookup_table(num_s, end_state)
    return dfa

def symcolrhexcodes(symbols):
    """
    returns dict of color codes mapped with alphabets symbol in symbols
    """
    return {
        symbol: '#'+''.join([
            rchoice("8A6C2B590D1F4E37") for _ in "FFFFFF"
        ])
        for symbol in symbols
    }

def draw_transition_graph(dfa, filename="filename"):
    ACCEPTING_STATE = START_STATE = '0'
    colors = symcolrhexcodes(dfa[START_STATE].keys())
    # draw transition graph
    tg = pgv.AGraph(strict=False, directed=True, decorate=True)
    for from_state in dfa:
        for symbol, to_state in dfa[from_state].iteritems():
            tg.add_edge("Q%s"%from_state, "Q%s"%to_state,
                        label=symbol, color=colors[symbol],
                        fontcolor=colors[symbol])

    # add intial edge from an invisible node!
    tg.add_node('null', shape='plaintext', label='start')
    tg.add_edge('null', "Q%s"%START_STATE,)

    # make end acception state as 'doublecircle'
    tg.get_node("Q%s"%ACCEPTING_STATE).attr['shape'] = 'doublecircle'
    tg.draw(filename, prog='circo')
    tg.close()

def print_transition_table(dfa):
    print("DFA accepting number string in base '%(base)s' "
            "those are divisible by '%(number)s':" % {
                'base': len(dfa['0']),
                'number': len(dfa),})
    pprint(dfa)

if __name__ == "__main__":
    number = input ("Enter NUMBER: ")
    base = input ("Enter BASE of number system: ")
    dfa = divided_by_N(number, base)

    print_transition_table(dfa)
    draw_transition_graph(dfa)

Execute it:

~/study/divide-5/script$ python script.py 
Enter NUMBER: 5
Enter BASE of number system: 4
DFA accepting number string in base '4' those are divisible by '5':
{'0': {'0': '0', '1': '1', '2': '2', '3': '3'},
 '1': {'0': '4', '1': '0', '2': '1', '3': '2'},
 '2': {'0': '3', '1': '4', '2': '0', '3': '1'},
 '3': {'0': '2', '1': '3', '2': '4', '3': '0'},
 '4': {'0': '1', '1': '2', '2': '3', '3': '4'}}
~/study/divide-5/script$ ls
script.py filename.png
~/study/divide-5/script$ display filename

Output:

DFA accepting number strings in base 4 those are divisible by 5

Similarly, enter base = 4 and number = 7 to generate - dfa accepting number string in base '4' those are divisible by '7'
Btw, try changing filename to .png or .jpeg.

_{References those I use to write this script:
➊ Function baseN from "convert integer to a string in a given numeric base in python"
➋ To install "pygraphviz": "Python does not see pygraphviz"
➌ To learn use of Pygraphviz: "Python-FSM"
➍ To generate random hex color codes for each language symbol: "How would I make a random hexdigit code generator using .join and for loops?"}

If ES2018's lookbehind is available, one more regexp solution, that makes use of it to "replace" at a zero-width position after the Nth character (similar to @Kamil Kielczewski's, but without storing the initial characters in a capturing group):

"I want apple".replace(/(?<=^.{6})/, " an")

var a = "I want apple";_x000D_
var b = " an";_x000D_
var position = 6;_x000D_
_x000D_
var r= a.replace(new RegExp(`(?<=^.{${position}})`), b);_x000D_
_x000D_
console.log(r);_x000D_
console.log("I want apple".replace(/(?<=^.{6})/, " an"));

declare your date column as NOT NULL, but without a default. Then add this trigger:

USE `ddb`;
DELIMITER $$
CREATE TRIGGER `default_date` BEFORE INSERT ON `dtable` FOR EACH ROW
if ( isnull(new.query_date) ) then
 set new.query_date=curdate();
end if;
$$
delimiter ;

In ubuntu to install php_soap on PHP7 use below commands. Reference

sudo apt-get install php7.0-soap
sudo systemctl restart apache2.service

For older version of php use below command and restart apache.

apt-get install php-soap

Let's take two questions, example string "2014-04-08 12:30"

How can I obtain a LocalDateTime instance from the given string?

import java.time.format.DateTimeFormatter
import java.time.LocalDateTime

final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm")

// Parsing or conversion
final LocalDateTime dt = LocalDateTime.parse("2014-04-08 12:30", formatter)

dt should allow you to all date-time related operations

How can I then convert the LocalDateTime instance back to a string with the same format?

final String date = dt.format(formatter)

log4j2 has a very flexible configuration system (which IMHO is more a distraction than a help), you can even use JSON. See https://logging.apache.org/log4j/2.x/manual/configuration.html for a reference.

Personally, I just recently started using log4j2, but I'm tending toward the "strict XML" configuration (that is, using attributes instead of element names), which can be schema-validated.

Here is my simple example using autoconfiguration and strict mode, using a "Property" for setting the filename:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration monitorinterval="30" status="info" strict="true">
    <Properties>
        <Property name="filename">log/CelsiusConverter.log</Property>
    </Properties>
    <Appenders>
        <Appender type="Console" name="Console">
            <Layout type="PatternLayout" pattern="%d %p [%t] %m%n" />
        </Appender>
        <Appender type="Console" name="FLOW">
            <Layout type="PatternLayout" pattern="%C{1}.%M %m %ex%n" />
        </Appender>
        <Appender type="File" name="File" fileName="${filename}">
            <Layout type="PatternLayout" pattern="%d %p %C{1.} [%t] %m%n" />
        </Appender>
    </Appenders>
    <Loggers>
        <Root level="debug">
            <AppenderRef ref="File" />
            <AppenderRef ref="Console" />
            <!-- Use FLOW to trace down exact method sending the msg -->
            <!-- <AppenderRef ref="FLOW" /> -->
        </Root>
    </Loggers>
</Configuration>

Easiest way to do is :

awk 'NR==FNR{a[$1]++;next} a[$1] ' file1 file2

Files are not necessary to be sorted.

This should do it, let me know if you have trouble with it:

Sub foo()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, copy what you want from x:
x.Sheets("name of copying sheet").Range("A1").Copy

'Now, paste to y worksheet:
y.Sheets("sheetname").Range("A1").PasteSpecial

'Close x:
x.Close

End Sub

Alternatively, you could just:

Sub foo2()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, transfer values from x to y:
y.Sheets("sheetname").Range("A1").Value = x.Sheets("name of copying sheet").Range("A1") 

'Close x:
x.Close

End Sub

To extend this to the entire sheet:

With x.Sheets("name of copying sheet").UsedRange
    'Now, paste to y worksheet:
    y.Sheets("sheet name").Range("A1").Resize( _
        .Rows.Count, .Columns.Count) = .Value
End With

And yet another way, store the value as a variable and write the variable to the destination:

Sub foo3()
Dim x As Workbook
Dim y As Workbook
Dim vals as Variant

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Store the value in a variable:
vals = x.Sheets("name of sheet").Range("A1").Value

'Use the variable to assign a value to the other file/sheet:
y.Sheets("sheetname").Range("A1").Value = vals 

'Close x:
x.Close

End Sub

The last method above is usually the fastest for most applications, but do note that for very large datasets (100k rows) it's observed that the Clipboard actually outperforms the array dump:

Copy/PasteSpecial vs Range.Value = Range.Value

That said, there are other considerations than just speed, and it may be the case that the performance hit on a large dataset is worth the tradeoff, to avoid interacting with the Clipboard.

You can't. And it's a security measure. Imagine if someone writes JS that sets file input value to some sensitive data file?

In typescript, the declaration is something like this:

const regex : RegExp = /.+\*.+/;

using RegExp constructor:

const regex = new RegExp('.+\\*.+');

You could convert your integer into a string. As the minus sign will not match the digits, you will have no negative years.

Running pod update in the root directory of the app fixed the issue for me.

Yes, ensure like finally guarantees that the block will be executed. This is very useful for making sure that critical resources are protected e.g. closing a file handle on error, or releasing a mutex.

Something that sometimes crops up you may/maynot be aware of

Won't always be picked up by by $_POST['delete'] when using IE. Firefox and chrome should work fine though. I use a seperate isntead which solves the problem for IE

As for your not deleting in your code above you appear to be echoing out 2x sets of check boxes both pulling the same data? Is this just a copy + paste mistake or is this actually how your code is?

If its how your code is that'll be the problem as the user could be ticking one checkbox array item but the other one will be unchecked so the php code for delete is getting confused. Either rename the 2nd check box or delete that block of html surely you don't need to display the same list twice ?

AsynHelper Java library includes a set of utility classes/methods for such asynchronous calls (and wait).

If it is desired to run a set of method calls or code blocks asynchronously, the It includes an useful helper method AsyncTask.submitTasks as in below snippet.

AsyncTask.submitTasks(
    () -> getMethodParam1(arg1, arg2),
    () -> getMethodParam2(arg2, arg3)
    () -> getMethodParam3(arg3, arg4),
    () -> {
             //Some other code to run asynchronously
          }
    );

If it is desired to wait till all asynchronous codes are completed running, the AsyncTask.submitTasksAndWait varient can be used.

Also if it is desired to obtain a return value from each of the asynchronous method call or code block, the AsyncSupplier.submitSuppliers can be used so that the result can be then obtained by from the result suppliers array returned by the method. Below is the sample snippet:

Supplier<Object>[] resultSuppliers = 
   AsyncSupplier.submitSuppliers(
     () -> getMethodParam1(arg1, arg2),
     () -> getMethodParam2(arg3, arg4),
     () -> getMethodParam3(arg5, arg6)
   );

Object a = resultSuppliers[0].get();
Object b = resultSuppliers[1].get();
Object c = resultSuppliers[2].get();

myBigMethod(a,b,c);

If the return type of each method differ, use the below kind of snippet.

Supplier<String> aResultSupplier = AsyncSupplier.submitSupplier(() -> getMethodParam1(arg1, arg2));
Supplier<Integer> bResultSupplier = AsyncSupplier.submitSupplier(() -> getMethodParam2(arg3, arg4));
Supplier<Object> cResultSupplier = AsyncSupplier.submitSupplier(() -> getMethodParam3(arg5, arg6));

myBigMethod(aResultSupplier.get(), bResultSupplier.get(), cResultSupplier.get());

The result of the asynchronous method calls/code blocks can also be obtained at a different point of code in the same thread or a different thread as in the below snippet.

AsyncSupplier.submitSupplierForSingleAccess(() -> getMethodParam1(arg1, arg2), "a");
AsyncSupplier.submitSupplierForSingleAccess(() -> getMethodParam2(arg3, arg4), "b");
AsyncSupplier.submitSupplierForSingleAccess(() -> getMethodParam3(arg5, arg6), "c");


//Following can be in the same thread or a different thread
Optional<String> aResult = AsyncSupplier.waitAndGetFromSupplier(String.class, "a");
Optional<Integer> bResult = AsyncSupplier.waitAndGetFromSupplier(Integer.class, "b");
Optional<Object> cResult = AsyncSupplier.waitAndGetFromSupplier(Object.class, "c");

 myBigMethod(aResult.get(),bResult.get(),cResult.get());

Missing the main property?

As previous people have answered npm --save ../location-of-your-packages-root-directory. The ../location-of-your-packages-root-directory however must have two things in order for it to work.

1) package.json in that directory pointed towards

2) main property in the package.json must be set and working i.g. "main": "src/index.js", if the entry file for ../location-of-your-packages-root-directory is ../location-of-your-packages-root-directory/src/index.js

here is a small snippet that might be cool to try out:

input {
border-radius: 10px;
border-color: violet;
border-style: solid;
}

note that: border-style removes the inner shadow.

input {_x000D_
    border-radius: 10px;_x000D_
    border-color: violet;_x000D_
    border-style: solid;_x000D_
  }

<input type="text"/>

If you are using Joseph's answer which is a great answer, and you run these back to back like this:

dim i = GetRandom(1, 1715)
dim o = GetRandom(1, 1715)

Then the result could come back the same over and over because it processes the call so quickly. This may not have been an issue in '08, but since the processors are much faster today, the function doesn't allow the system clock enough time to change prior to making the second call.

Since the System.Random() function is based on the system clock, we need to allow enough time for it to change prior to the next call. One way of accomplishing this is to pause the current thread for 1 millisecond. See example below:

Public Function GetRandom(ByVal min as Integer, ByVal max as Integer) as Integer
    Static staticRandomGenerator As New System.Random
    max += 1
    Return staticRandomGenerator.Next(If(min > max, max, min), If(min > max, min, max))
End Function

You can also use border-style: double with background-clip: padding-box, without the use of any extra (pseudo-)elements. It's probably the most compact solution, but not as flexible as the others.

For example:

<div class="circle">Some text goes here...</div>

.circle{
    width: 100px;
    height: 100px;
    padding: 50px;
    border-radius: 200px;
    border: double 15px rgba(255,255,255,0.7);
    background: rgba(255,255,255,0.7);
    background-clip: padding-box;
}

If you look closely you can see that the edge between the border and the background is not perfect. This seems to be an issue in current browsers. But it's not that noticeable when the border is small.

You've added an extra level of abstraction by calling the method with reflection. The reflection layer wraps any exception in an InvocationTargetException, which lets you tell the difference between an exception actually caused by a failure in the reflection call (maybe your argument list wasn't valid, for example) and a failure within the method called.

Just unwrap the cause within the InvocationTargetException and you'll get to the original one.

Well you could directly substract from the value by just referencing the key. Which in my opinion is simpler.

>>> books = {}
>>> books['book'] = 3       
>>> books['book'] -= 1   
>>> books   
{'book': 2}   

In your case:

book_shop[ch1] -= 1

Just dot is working. The doctype makes a difference however as sometimes the ./ is fine as well.

<a href=".">Link to this folder</a>

Follow the below steps -

1. In IIS Right click the "Default Web Site"
2. Click Edit Buildings in the context menu
3. Select and edit
4. Give your machine IP instead of "*" in IP Address

I also like to do the communication between 2 siblings via a parent component via input and output. it handles OnPush change notification better than using a common service. Or just use NgRx Store.

Example.

@Component({
    selector: 'parent',
    template: `<div><notes-grid 
            [Notes]="(NotesList$ | async)"
            (selectedNote)="ReceiveSelectedNote($event)"
        </notes-grid>
        <note-edit 
            [gridSelectedNote]="(SelectedNote$ | async)"
        </note-edit></div>`,
    styleUrls: ['./parent.component.scss']
})
export class ParentComponent {

    // create empty observable
    NotesList$: Observable<Note[]> = of<Note[]>([]);
    SelectedNote$: Observable<Note> = of<Note>();

    //passed from note-grid for selected note to edit.
    ReceiveSelectedNote(selectedNote: Note) {
    if (selectedNote !== null) {
        // change value direct subscribers or async pipe subscribers will get new value.
        this.SelectedNote$ = of<Note>(selectedNote);
    }
    }
    //used in subscribe next() to http call response.  Left out all that code for brevity.  This just shows how observable is populated.
    onNextData(n: Note[]): void {
    // Assign to Obeservable direct subscribers or async pipe subscribers will get new value.
    this.NotesList$ = of<Note[]>(n.NoteList);  //json from server
    }
}

//child 1 sibling
@Component({
  selector: 'note-edit',
  templateUrl: './note-edit.component.html', // just a textarea for noteText and submit and cancel buttons.
  styleUrls: ['./note-edit.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class NoteEditComponent implements OnChanges {
  @Input() gridSelectedNote: Note;

    constructor() {
    }

// used to capture @Input changes for new gridSelectedNote input
ngOnChanges(changes: SimpleChanges) {
     if (changes.gridSelectedNote && changes.gridSelectedNote.currentValue !== null) {      
      this.noteText = changes.gridSelectedNote.currentValue.noteText;
      this.noteCreateDtm = changes.gridSelectedNote.currentValue.noteCreateDtm;
      this.noteAuthorName = changes.gridSelectedNote.currentValue.noteAuthorName;
      }
  }

}

//child 2 sibling

@Component({
    selector: 'notes-grid',
    templateUrl: './notes-grid.component.html',  //just an html table with notetext, author, date
    styleUrls: ['./notes-grid.component.scss'],
    changeDetection: ChangeDetectionStrategy.OnPush
})
export class NotesGridComponent {

// the not currently selected fromt eh grid.
    CurrentSelectedNoteData: Note;

    // list for grid
    @Input() Notes: Note[];

    // selected note of grid sent out to the parent to send to sibling.
    @Output() readonly selectedNote: EventEmitter<Note> = new EventEmitter<Note>();

    constructor() {
    }

    // use when you need to send out the selected note to note-edit via parent using output-> input .
    EmitSelectedNote(){
    this.selectedNote.emit(this.CurrentSelectedNoteData);
    }

}


// here just so you can see what it looks like.

export interface Note {
    noteText: string;
    noteCreateDtm: string;
    noteAuthorName: string;
}

Good working example here: http://jsfiddle.net/MrTest/t4NXD/62/

Plus:

• has nice fade in / fade out animation
• will pause on :hover
• will prevent running multiple actions (finish run animation before starting second)
• will prevent going broken when in the tab ( browser stops scripts in the tabs)

Tested and working!

NSLocale* currentLocale = [NSLocale currentLocale];
[[NSDate date] descriptionWithLocale:currentLocale];  

or use

NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init]; 
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
// or @"yyyy-MM-dd hh:mm:ss a" if you prefer the time with AM/PM 
NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);

If you are using the batch conversion, in the window click "options" in the "Batch conversion settings-output format" and tick the two boxes "save transparent color" (one under "PNG" and the other under "ICO").

Get PHP SDK from github and run the following code:

<?php
$attachment = array(
    'message' => 'this is my message',
    'name' => 'This is my demo Facebook application!',
    'caption' => "Caption of the Post",
    'link' => 'http://mylink.com',
    'description' => 'this is a description',
    'picture' => 'http://mysite.com/pic.gif',
    'actions' => array(
        array(
            'name' => 'Get Search',
            'link' => 'http://www.google.com'
        )
    )
);

$result = $facebook->api('/me/feed/', 'post', $attachment);

the above code will Post the message on to your wall... and if you want to post onto your friends or others wall then replace me with the Facebook User Id of that user..for further information look out the API Documentation.

Try below

declare @sql varchar(8000), @table varchar(1000), @oldschema varchar(1000), @newschema   varchar(1000)

  set @oldschema = 'dbo'
  set @newschema = 'exe'

 while exists(select * from sys.tables where schema_name(schema_id) = @oldschema)

  begin
      select @table = name from sys.tables 
      where object_id in(select min(object_id) from sys.tables where  schema_name(schema_id)  = @oldschema)

    set @sql = 'alter schema ' + @newschema + ' transfer ' + @oldschema + '.' + @table

   exec(@sql)
 end

Darwind code didn't show the keyboard.

This works for me:

        _searchText.requestFocus();
        InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.showSoftInput(_searchText, InputMethodManager.SHOW_IMPLICIT);

in case the keyboard is not showing, try to force:

        imm.showSoftInput(_searchText, InputMethodManager.SHOW_FORCED);

I think my code its what everyone need:

ping -w 5000 -t -l 4000 -4 localhost|cmd /q /v /c "(pause&pause)>nul &for /l %a in () do (for /f "delims=*" %a in ('powershell get-date -format "{ddd dd-MMM-yyyy HH:mm:ss}"') do (set datax=%a) && set /p "data=" && echo([!datax!] - !data!)&ping -n 2 localhost>nul"

to display:

[Fri 09-Feb-2018 11:55:03] - Pinging localhost [127.0.0.1] with 4000 bytes of data:
[Fri 09-Feb-2018 11:55:05] - Reply from 127.0.0.1: bytes=4000 time<1ms TTL=128
[Fri 09-Feb-2018 11:55:08] - Reply from 127.0.0.1: bytes=4000 time<1ms TTL=128
[Fri 09-Feb-2018 11:55:11] - Reply from 127.0.0.1: bytes=4000 time<1ms TTL=128
[Fri 09-Feb-2018 11:55:13] - Reply from 127.0.0.1: bytes=4000 time<1ms TTL=128

note: code to be used inside a command line, and you must have powershell preinstalled on os.

If you ever need to send GET request to an IP as well as a Domain (Other answers did not mention you can specify a port variable), you can make use of this function:

function getCode(host, port, path, queryString) {
    console.log("(" + host + ":" + port + path + ")" + "Running httpHelper.getCode()")

    // Construct url and query string
    const requestUrl = url.parse(url.format({
        protocol: 'http',
        hostname: host,
        pathname: path,
        port: port,
        query: queryString
    }));

    console.log("(" + host + path + ")" + "Sending GET request")
    // Send request
    console.log(url.format(requestUrl))
    http.get(url.format(requestUrl), (resp) => {
        let data = '';

        // A chunk of data has been received.
        resp.on('data', (chunk) => {
            console.log("GET chunk: " + chunk);
            data += chunk;
        });

        // The whole response has been received. Print out the result.
        resp.on('end', () => {
            console.log("GET end of response: " + data);
        });

    }).on("error", (err) => {
        console.log("GET Error: " + err);
    });
}

Don't miss requiring modules at the top of your file:

http = require("http");
url = require('url')

Also bare in mind that you may use https module for communicating over secured domains and ssl. so these two lines would change:

https = require("https");
...
https.get(url.format(requestUrl), (resp) => { ......

if you testing some javascript requests for ionic2 or angularjs 2 , in your chrome on pc or mac , then be sure that you install CORS plugin for chrome browser to allow cross origin .

mayba get requests will work without needing that , but post and puts and delete will need you to install cors plugin for testing to go without problems , that definitley not cool , but i do not know how people do it without CORS plugin .

and also be sure the json response is not returning 400 by some json status

The font may exist with different names, and not at all on some systems, so you need to use different variations and fallback to get the closest possible look on all systems:

font-family: "Comic Sans MS", "Comic Sans", cursive;

Be careful what you use this font for, though. Many consider it as ugly and overused, so it should not be use for something that should look professional.

You can only delete with your time field, which is a number.

Delete from <measurement> where time=123456

will work. Remember not to give single quotes or double quotes. Its a number.

run command prompt as administrator and use '--user' flag eg. pip install --user --upgrade pandas

As RichieHindle pointed out the shortcut for column (block) selection is Alt+Shift+A. The problem I ran into is that the Android SDK on Eclipse uses 3 shortcuts that all start with Alt+Shift+A, so if you type that, you'll be given a choice of continuing with D, S, or R.

To solve this I redefined the column selection as Alt+Shift+A,A (Alt, Shift, A pressed together and then followed by a subsequent A). To do this go to Windows > Preferences then type keys or navigate to General > Keys. Under the Keys enter the filter text of block selection to quickly find the shortcut listing for toggle block selection. Here you can adjust the shortcut for column selection as you wish.

max=int(input("Find primes upto what numbers?"))
primeList=[]
for x in range(2,max+1):
    isPrime=True
    for y in range(2,int(x**0.5)+1) :
        if x%y==0:
            isPrime=False
            break

    if isPrime:
        primeList.append(x)
print(primeList)

TL;DR

In the first case with set encoding=utf-8, you'll change the output encoding that is shown in the terminal.

In the second case with set fileencoding=utf-8, you'll change the output encoding of the file that is written.

As stated by @Dennis, you can set them both in your ~/.vimrc if you always want to work in utf-8.

More details

From the wiki of VIM about working with unicode

"encoding sets how vim shall represent characters internally. Utf-8 is necessary for most flavors of Unicode."

"fileencoding sets the encoding for a particular file (local to buffer); :setglobal sets the default value. An empty value can also be used: it defaults to same as 'encoding'. Or you may want to set one of the ucs encodings, It might make the same disk file bigger or smaller depending on your particular mix of characters. Also, IIUC, utf-8 is always big-endian (high bit first) while ucs can be big-endian or little-endian, so if you use it, you will probably need to set 'bomb" (see below)."

Here're some screenshots (banner, alert, & notification center)

It lets you define a @Section of code in your template that you can then include in other files. For example, a sidebar defined in the template, could be referenced in another included view.

//This could be used to render a @Section defined as @Section SideBar { ...
@RenderSection("SideBar", required: false);

Hope this helps.

I know this is not the exact solution to the question above, but for me, it was a nightmare when I was trying to Copy data from one database located at a separate server to my local.

I was trying to do that by first export data from the Server to CSV/txt and then import it to my local table.

Both solutions: with writing down the query to import CSV or using the SSMS Import Data wizard was always producing errors (errors were very general, saying that there is parsing problem). And although I wasn't doing anything special, just export to CSV and then trying to import CSV to the local DB, the errors were always there.

I was trying to look at the mapping section and the data preview, but there was always a big mess. And I know the main problem was comming from one of the table columns, which was containing JSON and SQL parser was treating that wrongly.

So eventually, I came up with a different solution and want to share it in case if someone else will have a similar problem.

What I did is that I've used the Exporting Wizard on the external Server.

Here are the steps to repeat the same process:
1) Right click on the database and select Tasks -> Export Data...

2) When Wizard will open, choose Next and in the place of "Data Source:" choose "SQL Server Native Client".

In case of external Server you will most probably have to choose "Use SQL Server Authentication" for the "Authentication Mode:".

3) After hitting Next, you have to select the Destionation.
For that, select again "SQL Server Native Client".
This time you can provide your local (or some other external DB) DB.

4) After hitting the Next button, you have two options either to copy the entire table from one DB to another or write down the query to specify the exact data to be copied. In my case, I didn't need the entire table (it was too large), but just some part of it, so I've chosen "Write a query to specify the data to transfer".

I would suggest writing down and testing the query on a separate query editor before moving to Wizard.

5) And finally, you need to specify the destination table where the data will be selected.

I suggest to leave it as [dbo].[Query] or some custom Table name in case if you will have errors exporting the data or if you are not sure about the data and want further analyze it before moving to the exact table you want.

And now go straight to the end of the Wizard by hitting Next/Finish buttons.

<html>
    <head>
        <script>
        function callme(field) {
            alert("field:" + field.value);
        }
        </script>
    </head>
    <body>
        <form name="f1">
            <input type="text" onkeyup="callme(this);" name="text1">
        </form>
    </body>
</html>

It looks like you can use the onkeyup to get the new value of the HTML input control. Hope it helps.

map<string, string> m;

check key exist or not, and return number of occurs(0/1 in map):

int num = m.count("f");  
if (num>0) {    
    //found   
} else {  
    // not found  
}

check key exist or not, and return iterator:

map<string,string>::iterator mi = m.find("f");  
if(mi != m.end()) {  
    //found  
    //do something to mi.  
} else {  
    // not found  
}  

in your question, the error caused by bad operator<< overload, because p.first is map<string, string>, you can not print it out. try this:

if(p.first != p.second) {
    cout << p.first->first << " " << p.first->second << endl;
}

That depends on what you want to do, but as you said, getting an entity reference using find() and then just updating that entity is the easiest way to do that.

I'd not bother about performance differences of the various methods unless you have strong indications that this really matters.

If you see those characters you probably just didn’t specify the character encoding properly. Because those characters are the result when an UTF-8 multi-byte string is interpreted with a single-byte encoding like ISO 8859-1 or Windows-1252.

In this case ë could be encoded with 0xC3 0xAB that represents the Unicode character ë (U+00EB) in UTF-8.

You can get a JSON file that maps country codes to phone codes from http://country.io/phone.json:

...
BD: "880",
BE: "32",
BF: "226",
BG: "359",
BA: "387",
...

If you want country names then http://country.io/names.json will give you that:

...
"AL": "Albania",
"AM": "Armenia",
"AO": "Angola",
"AQ": "Antarctica",
"AR": "Argentina",
...

See http://country.io/data for more details.

ActiveRecord::Base.connection has a quote method that takes a string value (and optionally the column object). So you can say this:

ActiveRecord::Base.connection.execute(<<-EOQ)
  UPDATE  foo
  SET     bar = #{ActiveRecord::Base.connection.quote(baz)}
EOQ

Note if you're in a Rails migration or an ActiveRecord object you can shorten that to:

connection.execute(<<-EOQ)
  UPDATE  foo
  SET     bar = #{connection.quote(baz)}
EOQ

UPDATE: As @kolen points out, you should use exec_update instead. This will handle the quoting for you and also avoid leaking memory. The signature works a bit differently though:

connection.exec_update(<<-EOQ, "SQL", [[nil, baz]])
  UPDATE  foo
  SET     bar = $1
EOQ

Here the last param is a array of tuples representing bind parameters. In each tuple, the first entry is the column type and the second is the value. You can give nil for the column type and Rails will usually do the right thing though.

There are also exec_query, exec_insert, and exec_delete, depending on what you need.

These both work fine for me...

<?php
  $db = mysql_connect('localhost','user','pass');
  mysql_select_db('test_db');

  $stmt = "INSERT INTO `test` (`first`,`last`,`whenadded`) VALUES ".
          "('{$first}','{$last}','NOW())";
  $rslt = mysql_query($stmt);

  $stmt = "INSERT INTO `users` (`first`,`last`,`whenadded`) VALUES ".
          "('{$first}', '{$last}', CURRENT_TIMESTAMP)";
  $rslt = mysql_query($stmt);

?>

Side note: mysql_query() is not the best way to connect to MySQL in current versions of PHP.

Just apply scroll behaviour to all elements with this one-line code:

*{
scroll-behavior: smooth !important;
}

both floated divs need to have a width!

set 50% of width to both and it works.

BTW, the outer div, with its margin: 0 auto will only center itself not the ones inside.

Try to use the empty() function:

<xsl:if test="empty(node/ABC/node()) and empty(node/DEF/node())">
    <xsl:text>This should work</xsl:text>
</xsl:if>

This identifies ABC and DEF as empty in the sense that they do not have any child nodes (no elements, no text nodes, no processing instructions, no comments).

But, as pointed out by @Ian, your elements might not be empty really or that might not be your actual problem - you did not show what your input XML looks like.

Another cause of error could be your relative position in the tree. This way of testing conditions only works if the surrounding template matches the parent element of node or if you iterate over the parent element of node.

If you can guarantee the 7-zip app will be installed (and in the path) on all target machines, you can offload by calling the command line app 7z. Not the most elegant solution but it is the least work.

I found the answer :

{% for key,value in array_path %}
    Key : {{ key }}
    Value : {{ value }}
{% endfor %}

Native JSON support has been included in PHP since 5.2 in the form of methods json_encode() and json_decode(). You would use the first to output a PHP variable in JSON.

Managed to get answer after do some google..

echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
# Java 7
apt-get install oracle-java7-installer
# For Java 8 command is:
apt-get install oracle-java8-installer

Instead of using regex to remove those "crazy" characters, just convert them to ASCII, which will remove accents, but will keep the letters.

astr <- "Ábcdêãçoàúü"
iconv(astr, from = 'UTF-8', to = 'ASCII//TRANSLIT')

which results in

[1] "Abcdeacoauu"