Swift 4.1 and 5. We use queues in many places in our code. So, I created Threads class with all queues. If you don't want to use Threads class you can copy the desired queue code from class methods.

class Threads {

  static let concurrentQueue = DispatchQueue(label: "AppNameConcurrentQueue", attributes: .concurrent)
  static let serialQueue = DispatchQueue(label: "AppNameSerialQueue")

  // Main Queue
  class func performTaskInMainQueue(task: @escaping ()->()) {
    DispatchQueue.main.async {
      task()
    }
  }

  // Background Queue
  class func performTaskInBackground(task:@escaping () throws -> ()) {
    DispatchQueue.global(qos: .background).async {
      do {
        try task()
      } catch let error as NSError {
        print("error in background thread:\(error.localizedDescription)")
      }
    }
  }

  // Concurrent Queue
  class func perfromTaskInConcurrentQueue(task:@escaping () throws -> ()) {
    concurrentQueue.async {
      do {
        try task()
      } catch let error as NSError {
        print("error in Concurrent Queue:\(error.localizedDescription)")
      }
    }
  }

  // Serial Queue
  class func perfromTaskInSerialQueue(task:@escaping () throws -> ()) {
    serialQueue.async {
      do {
        try task()
      } catch let error as NSError {
        print("error in Serial Queue:\(error.localizedDescription)")
      }
    }
  }

  // Perform task afterDelay
  class func performTaskAfterDealy(_ timeInteval: TimeInterval, _ task:@escaping () -> ()) {
    DispatchQueue.main.asyncAfter(deadline: (.now() + timeInteval)) {
      task()
    }
  }
}

Example showing the use of main queue.

override func viewDidLoad() {
    super.viewDidLoad()
     Threads.performTaskInMainQueue {
        //Update UI
    }
}

I found this as an easiest way to add row . The awesome thing about this is that it doesn't change the already present table contents even if it contains input elements .

row = `<tr><td><input type="text"></td></tr>`
$("#table_body tr:last").after(row) ;

Here #table_body is the id of the table body tag .

Yes, there's str_to_date

mysql> select str_to_date("03/02/2009","%d/%m/%Y");
+--------------------------------------+
| str_to_date("03/02/2009","%d/%m/%Y") |
+--------------------------------------+
| 2009-02-03                           |
+--------------------------------------+
1 row in set (0.00 sec)

Python lists are mutable objects and here:

plot_data = [[]] * len(positions) 

you are repeating the same list len(positions) times.

>>> plot_data = [[]] * 3
>>> plot_data
[[], [], []]
>>> plot_data[0].append(1)
>>> plot_data
[[1], [1], [1]]
>>> 

Each list in your list is a reference to the same object. You modify one, you see the modification in all of them.

If you want different lists, you can do this way:

plot_data = [[] for _ in positions]

for example:

>>> pd = [[] for _ in range(3)]
>>> pd
[[], [], []]
>>> pd[0].append(1)
>>> pd
[[1], [], []]

Answering the question but by a simple addition function with 2 arguments.

var x = 3, y = 4;

setTimeout(function(arg1, arg2) { 
      delayedSum(arg1, arg2);
}(x, y), 1000);

function delayedSum(param1, param2) {
     alert(param1 + param2); // 7
}

if $ ping -c 1 192.168.x.x 

returns

1 packets transmitted, 1 received, 0% packet loss, time ###ms

then you could possibly return the MAC address with arping, but ARP only works on your local network, not across the internet.

$ arping -c 1 192.168.x.x

ARPING 192.168.x.x from 192.168.x.x wlan0
Unicast reply from 192.168.x.x [AA:BB:CC:##:##:##]  192.772ms
Sent 1 probes (1 broadcast(s))
Received 1 response(s)

finally you could use the AA:BB:CC with the colons removed to identify a device from its vendor ID, for example.

$ grep -i '709E29' /usr/local/share/nmap/nmap-mac-prefixes 
709E29 Sony Interactive Entertainment

On iOS 9.2 Profiles renamed to Device Management.
Now navigation looks like that:
Settings -> General -> Device Management -> Tap on necessary profile in list -> Trust.

Simply with command line:

javac MyApp.java
jar -cf myJar.jar MyApp.class

Sure IDEs avoid using command line terminal

The guide to getting fired: How to abuse function pointers in GCC on x86 machines by compiling your code by hand:

These string literals are bytes of 32-bit x86 machine code. 0xC3 is an x86 ret instruction.

You wouldn't normally write these by hand, you'd write in assembly language and then use an assembler like nasm to assemble it into a flat binary which you hexdump into a C string literal.

1. Returns the current value on the EAX register

   int eax = ((int(*)())("\xc3 <- This returns the value of the EAX register"))();
   

2. Write a swap function

   int a = 10, b = 20;
   ((void(*)(int*,int*))"\x8b\x44\x24\x04\x8b\x5c\x24\x08\x8b\x00\x8b\x1b\x31\xc3\x31\xd8\x31\xc3\x8b\x4c\x24\x04\x89\x01\x8b\x4c\x24\x08\x89\x19\xc3 <- This swaps the values of a and b")(&a,&b);
   

3. Write a for-loop counter to 1000, calling some function each time

   ((int(*)())"\x66\x31\xc0\x8b\x5c\x24\x04\x66\x40\x50\xff\xd3\x58\x66\x3d\xe8\x03\x75\xf4\xc3")(&function); // calls function with 1->1000
   

4. You can even write a recursive function that counts to 100

   const char* lol = "\x8b\x5c\x24\x4\x3d\xe8\x3\x0\x0\x7e\x2\x31\xc0\x83\xf8\x64\x7d\x6\x40\x53\xff\xd3\x5b\xc3\xc3 <- Recursively calls the function at address lol.";
   i = ((int(*)())(lol))(lol);
   

Note that compilers place string literals in the .rodata section (or .rdata on Windows), which is linked as part of the text segment (along with code for functions).

The text segment has Read+Exec permission, so casting string literals to function pointers works without needing mprotect() or VirtualProtect() system calls like you'd need for dynamically allocated memory. (Or gcc -z execstack links the program with stack + data segment + heap executable, as a quick hack.)

To disassemble these, you can compile this to put a label on the bytes, and use a disassembler.

// at global scope
const char swap[] = "\x8b\x44\x24\x04\x8b\x5c\x24\x08\x8b\x00\x8b\x1b\x31\xc3\x31\xd8\x31\xc3\x8b\x4c\x24\x04\x89\x01\x8b\x4c\x24\x08\x89\x19\xc3 <- This swaps the values of a and b";

Compiling with gcc -c -m32 foo.c and disassembling with objdump -D -rwC -Mintel, we can get the assembly, and find out that this code violates the ABI by clobbering EBX (a call-preserved register) and is generally inefficient.

00000000 <swap>:
   0:   8b 44 24 04             mov    eax,DWORD PTR [esp+0x4]   # load int *a arg from the stack
   4:   8b 5c 24 08             mov    ebx,DWORD PTR [esp+0x8]   # ebx = b
   8:   8b 00                   mov    eax,DWORD PTR [eax]       # dereference: eax = *a
   a:   8b 1b                   mov    ebx,DWORD PTR [ebx]
   c:   31 c3                   xor    ebx,eax                # pointless xor-swap
   e:   31 d8                   xor    eax,ebx                # instead of just storing with opposite registers
  10:   31 c3                   xor    ebx,eax
  12:   8b 4c 24 04             mov    ecx,DWORD PTR [esp+0x4]  # reload a from the stack
  16:   89 01                   mov    DWORD PTR [ecx],eax     # store to *a
  18:   8b 4c 24 08             mov    ecx,DWORD PTR [esp+0x8]
  1c:   89 19                   mov    DWORD PTR [ecx],ebx
  1e:   c3                      ret    

  not shown: the later bytes are ASCII text documentation
  they're not executed by the CPU because the ret instruction sends execution back to the caller

This machine code will (probably) work in 32-bit code on Windows, Linux, OS X, and so on: the default calling conventions on all those OSes pass args on the stack instead of more efficiently in registers. But EBX is call-preserved in all the normal calling conventions, so using it as a scratch register without saving/restoring it can easily make the caller crash.

1.) Storage of database passwords Use some kind of hash with a salt and then alter the hash, obfuscate it, for example add a distinct value for each byte. That way your passwords a super secured against dictionary attacks and rainbow tables.

2.) To check if the password matches, create your hash for the password the user put in. Then perform a query against the database for the username and just check if the two password hashes are identical. If they are, give the user an authentication token.

The query should then look like this:

select hashedPassword from users where username=?

Then compare the password to the input.

Further questions?

You can first insert data into blob field and then copy to text field with the folloing function

CREATE OR REPLACE FUNCTION blob2text() RETURNS void AS $$
Declare
    ref record;
    i integer;
Begin
    FOR ref IN SELECT id, blob_field FROM table LOOP

          --  find 0x00 and replace with space    
      i := position(E'\\000'::bytea in ref.blob_field);
      WHILE i > 0 LOOP
        ref.bob_field := set_byte(ref.blob_field, i-1, 20);
        i := position(E'\\000'::bytea in ref.blobl_field);
      END LOOP

    UPDATE table SET field = encode(ref.blob_field, 'escape') WHERE id = ref.id;
    END LOOP;

End; $$ LANGUAGE plpgsql; 

--

SELECT blob2text();

This should technically be achievable using window.location.reload():

HTML:

<button (click)="refresh()">Refresh</button>

TS:

refresh(): void {
    window.location.reload();
}

Update:

Here is a basic StackBlitz example showing the refresh in action. Notice the URL on "/hello" path is retained when window.location.reload() is executed.

I wrote this code snippet and it works fine:

<a href="#" class="clickable">Blah</a>
<input id="textbox">
<script type="text/javascript">
    $(document).ready(function(){
        $("a.clickable").click(function(event){
            event.preventDefault();
            $("input#textbox").val($(this).html());
        });  
    });
</script>

Maybe you forgot to give a class name "clickable" to your links?

As long as strings can be viewed directly as a char array it's going to be really hard to convince me that std::string represents strings as first class citizens in C++.

Besides, combining allocation and boundedness seems to be a bad idea to me anyways.

Building on Ravinders solution, this code stops the form being submitted. It might be wise to check the extension at the server-side too. So you don't get hackers uploading anything they want.

<script>
var valid = false;

function validate_fileupload(input_element)
{
    var el = document.getElementById("feedback");
    var fileName = input_element.value;
    var allowed_extensions = new Array("jpg","png","gif");
    var file_extension = fileName.split('.').pop(); 
    for(var i = 0; i < allowed_extensions.length; i++)
    {
        if(allowed_extensions[i]==file_extension)
        {
            valid = true; // valid file extension
            el.innerHTML = "";
            return;
        }
    }
    el.innerHTML="Invalid file";
    valid = false;
}

function valid_form()
{
    return valid;
}
</script>

<div id="feedback" style="color: red;"></div>
<form method="post" action="/image" enctype="multipart/form-data">
  <input type="file" name="fileName" accept=".jpg,.png,.bmp" onchange="validate_fileupload(this);"/>
  <input id="uploadsubmit" type="submit" value="UPLOAD IMAGE" onclick="return valid_form();"/>
</form>

The tutorial @Henrik mentioned is an excellent resource for learning how to create plots with the ggplot2 package.

An example with your data:

# transforming the data from wide to long
library(reshape2)
dfm <- melt(df, id = "TY")

# creating a scatterplot
ggplot(data = dfm, aes(x = TY, y = value, color = variable)) + 
  geom_point(size=5) +
  labs(title = "Temperatures\n", x = "TY [°C]", y = "Txxx", color = "Legend Title\n") +
  scale_color_manual(labels = c("T999", "T888"), values = c("blue", "red")) +
  theme_bw() +
  theme(axis.text.x = element_text(size = 14), axis.title.x = element_text(size = 16),
        axis.text.y = element_text(size = 14), axis.title.y = element_text(size = 16),
        plot.title = element_text(size = 20, face = "bold", color = "darkgreen"))

this results in:

As mentioned by @user2739472 in the comments: If you only want to change the legend text labels and not the colours from ggplot's default palette, you can use scale_color_hue(labels = c("T999", "T888")) instead of scale_color_manual().

psql -U username -d mydatabase -c 'SELECT * FROM mytable'

If you're new to postgresql and unfamiliar with using the command line tool psql then there is some confusing behaviour you should be aware of when you've entered an interactive session.

For example, initiate an interactive session:

psql -U username mydatabase 
mydatabase=#

At this point you can enter a query directly but you must remember to terminate the query with a semicolon ;

For example:

mydatabase=# SELECT * FROM mytable;

If you forget the semicolon then when you hit enter you will get nothing on your return line because psql will be assuming that you have not finished entering your query. This can lead to all kinds of confusion. For example, if you re-enter the same query you will have most likely create a syntax error.

As an experiment, try typing any garble you want at the psql prompt then hit enter. psql will silently provide you with a new line. If you enter a semicolon on that new line and then hit enter, then you will receive the ERROR:

mydatabase=# asdfs 
mydatabase=# ;  
ERROR:  syntax error at or near "asdfs"
LINE 1: asdfs
    ^

The rule of thumb is: If you received no response from psql but you were expecting at least SOMETHING, then you forgot the semicolon ;

.navbar {
   background-color: transparent;
   background: transparent;
   border-color: transparent;
}

.navbar li { color: #000 } 

http://bootply.com/106969

I couldn't respond to Mark above, but I just made one modification which fixed the error which was caused if data in the cells was not unicode, i.e. float or int data. I replaced this line into the UnicodeWriter function: "self.writer.writerow([s.encode("utf-8") if type(s)==types.UnicodeType else s for s in row])" so that it became:

class UnicodeWriter:
    def __init__(self, f, dialect=csv.excel, encoding="utf-8-sig", **kwds):
       self.queue = cStringIO.StringIO()
        self.writer = csv.writer(self.queue, dialect=dialect, **kwds)
        self.stream = f
        self.encoder = codecs.getincrementalencoder(encoding)()
    def writerow(self, row):
        '''writerow(unicode) -> None
        This function takes a Unicode string and encodes it to the output.
        '''
        self.writer.writerow([s.encode("utf-8") if type(s)==types.UnicodeType else s for s in row])
        data = self.queue.getvalue()
        data = data.decode("utf-8")
        data = self.encoder.encode(data)
        self.stream.write(data)
        self.queue.truncate(0)

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

You will also need to "import types".

Because you send custom headers so your CORS request is not a simple request, so the browser first sends a preflight OPTIONS request to check that the server allows your request.

If you turn on CORS on the server then your code will work. You can also use JavaScript fetch instead (here)

let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=My-First-Header,My-Second-Header';_x000D_
_x000D_
_x000D_
$.ajax({_x000D_
    type: 'POST',_x000D_
    url: url,_x000D_
    headers: {_x000D_
        "My-First-Header":"first value",_x000D_
        "My-Second-Header":"second value"_x000D_
    }_x000D_
}).done(function(data) {_x000D_
    alert(data[0].request.httpMethod + ' was send - open chrome console> network to see it');_x000D_
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

Here is an example configuration which turns on CORS on nginx (nginx.conf file):

location ~ ^/index\.php(/|$) {_x000D_
   ..._x000D_
    add_header 'Access-Control-Allow-Origin' "$http_origin" always;_x000D_
    add_header 'Access-Control-Allow-Credentials' 'true' always;_x000D_
    if ($request_method = OPTIONS) {_x000D_
        add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)_x000D_
        add_header 'Access-Control-Allow-Credentials' 'true';_x000D_
        add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days_x000D_
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';_x000D_
        add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';_x000D_
        add_header 'Content-Length' 0;_x000D_
        add_header 'Content-Type' 'text/plain charset=UTF-8';_x000D_
        return 204;_x000D_
    }_x000D_
}

Here is an example configuration which turns on CORS on Apache (.htaccess file)

# ------------------------------------------------------------------------------_x000D_
# | Cross-domain Ajax requests                                                 |_x000D_
# ------------------------------------------------------------------------------_x000D_
_x000D_
# Enable cross-origin Ajax requests._x000D_
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity_x000D_
# http://enable-cors.org/_x000D_
_x000D_
# <IfModule mod_headers.c>_x000D_
#    Header set Access-Control-Allow-Origin "*"_x000D_
# </IfModule>_x000D_
_x000D_
#Header set Access-Control-Allow-Origin "http://example.com:3000"_x000D_
#Header always set Access-Control-Allow-Credentials "true"_x000D_
_x000D_
Header set Access-Control-Allow-Origin "*"_x000D_
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"_x000D_
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"

A stateful server keeps state between connections. A stateless server does not.

So, when you send a request to a stateful server, it may create some kind of connection object that tracks what information you request. When you send another request, that request operates on the state from the previous request. So you can send a request to "open" something. And then you can send a request to "close" it later. In-between the two requests, that thing is "open" on the server.

When you send a request to a stateless server, it does not create any objects that track information regarding your requests. If you "open" something on the server, the server retains no information at all that you have something open. A "close" operation would make no sense, since there would be nothing to close.

HTTP and NFS are stateless protocols. Each request stands on its own.

Sometimes cookies are used to add some state to a stateless protocol. In HTTP (web pages), the server sends you a cookie and then the browser holds the state, only to send it back to the server on a subsequent request.

SMB is a stateful protocol. A client can open a file on the server, and the server may deny other clients access to that file until the client closes it.

My own implementation, taking into account that string needs to be resized only once, then replace can happen.

template <typename T>
std::basic_string<T> replaceAll(const std::basic_string<T>& s, const T* from, const T* to)
{
    auto length = std::char_traits<T>::length;
    size_t toLen = length(to), fromLen = length(from), delta = toLen - fromLen;
    bool pass = false;
    std::string ns = s;

    size_t newLen = ns.length();

    for (bool estimate : { true, false })
    {
        size_t pos = 0;

        for (; (pos = ns.find(from, pos)) != std::string::npos; pos++)
        {
            if (estimate)
            {
                newLen += delta;
                pos += fromLen;
            }
            else
            {
                ns.replace(pos, fromLen, to);
                pos += delta;
            }
        }

        if (estimate)
            ns.resize(newLen);
    }

    return ns;
}

Usage could be for example like this:

std::string dirSuite = replaceAll(replaceAll(relPath.parent_path().u8string(), "\\", "/"), ":", "");

if you're using php oop you might need to change to:

public static function cmp($a, $b) 
{
    return strcmp($a->name, $b->name);
}

//in this case FUNCTION_NAME would be cmp
usort($your_data, array('YOUR_CLASS_NAME','FUNCTION_NAME')); 

Don't forget to use var/let while declaring any variable.See below examples for JS compiler behaviour.

function  func(){
return true;
}

isBool = func();
console.log(typeof (isBool));   // output - string


let isBool = func();
console.log(typeof (isBool));   // output - boolean

40 methods in a single class is a bit much.

Would it make sense to move some of the functionality into other - suitably named - classes. Then it is much easier to make sense of.

When you have fewer, it is much easier to list them in a natural reading order. A frequent paradigm is to list things either before or after you need them , in the order you need them.

This usually means that main() goes on top or on bottom.

Well, you can use Expression.AndAlso / OrElse etc to combine logical expressions, but the problem is the parameters; are you working with the same ParameterExpression in expr1 and expr2? If so, it is easier:

var body = Expression.AndAlso(expr1.Body, expr2.Body);
var lambda = Expression.Lambda<Func<T,bool>>(body, expr1.Parameters[0]);

This also works well to negate a single operation:

static Expression<Func<T, bool>> Not<T>(
    this Expression<Func<T, bool>> expr)
{
    return Expression.Lambda<Func<T, bool>>(
        Expression.Not(expr.Body), expr.Parameters[0]);
}

Otherwise, depending on the LINQ provider, you might be able to combine them with Invoke:

// OrElse is very similar...
static Expression<Func<T, bool>> AndAlso<T>(
    this Expression<Func<T, bool>> left,
    Expression<Func<T, bool>> right)
{
    var param = Expression.Parameter(typeof(T), "x");
    var body = Expression.AndAlso(
            Expression.Invoke(left, param),
            Expression.Invoke(right, param)
        );
    var lambda = Expression.Lambda<Func<T, bool>>(body, param);
    return lambda;
}

Somewhere, I have got some code that re-writes an expression-tree replacing nodes to remove the need for Invoke, but it is quite lengthy (and I can't remember where I left it...)

Generalized version that picks the simplest route:

static Expression<Func<T, bool>> AndAlso<T>(
    this Expression<Func<T, bool>> expr1,
    Expression<Func<T, bool>> expr2)
{
    // need to detect whether they use the same
    // parameter instance; if not, they need fixing
    ParameterExpression param = expr1.Parameters[0];
    if (ReferenceEquals(param, expr2.Parameters[0]))
    {
        // simple version
        return Expression.Lambda<Func<T, bool>>(
            Expression.AndAlso(expr1.Body, expr2.Body), param);
    }
    // otherwise, keep expr1 "as is" and invoke expr2
    return Expression.Lambda<Func<T, bool>>(
        Expression.AndAlso(
            expr1.Body,
            Expression.Invoke(expr2, param)), param);
}

Starting from .NET 4.0, there is the ExpressionVisitor class which allows you to build expressions that are EF safe.

    public static Expression<Func<T, bool>> AndAlso<T>(
        this Expression<Func<T, bool>> expr1,
        Expression<Func<T, bool>> expr2)
    {
        var parameter = Expression.Parameter(typeof (T));

        var leftVisitor = new ReplaceExpressionVisitor(expr1.Parameters[0], parameter);
        var left = leftVisitor.Visit(expr1.Body);

        var rightVisitor = new ReplaceExpressionVisitor(expr2.Parameters[0], parameter);
        var right = rightVisitor.Visit(expr2.Body);

        return Expression.Lambda<Func<T, bool>>(
            Expression.AndAlso(left, right), parameter);
    }



    private class ReplaceExpressionVisitor
        : ExpressionVisitor
    {
        private readonly Expression _oldValue;
        private readonly Expression _newValue;

        public ReplaceExpressionVisitor(Expression oldValue, Expression newValue)
        {
            _oldValue = oldValue;
            _newValue = newValue;
        }

        public override Expression Visit(Expression node)
        {
            if (node == _oldValue)
                return _newValue;
            return base.Visit(node);
        }
    }

Since the jar file 'executes' then it contains compiled java files known as .class files. You cannot import it to eclipse and modify the code. You should ask the supplier of the "demo" for the "source code". (or check the page you got the demo from for the source code)

Unless, you want to decompile the .class files and import to Eclipse. That may not be the case for starters.

Strictly speaking, there is no single configuration file. Excluding ASP.NET¹ there can be three configuration files using the inbuilt (System.Configuration) support. In addition to the machine config: app.exe.config, user roaming, and user local.

To get the "global" configuration (exe.config):

ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
                    .FilePath

Use different ConfigurationUserLevel values for per-use roaming and non-roaming configuration files.

¹ Which has a completely different model where the content of a child folders (IIS-virtual or file system) web.config can (depending on the setting) add to or override the parent's web.config.

I dont think you can, Java uses type erasure when compiling so your code is compatible with applications and libraries that were created pre-generics.

From the Oracle Docs:

Type Erasure

Generics were introduced to the Java language to provide tighter type checks at compile time and to support generic programming. To implement generics, the Java compiler applies type erasure to:

Replace all type parameters in generic types with their bounds or Object if the type parameters are unbounded. The produced bytecode, therefore, contains only ordinary classes, interfaces, and methods. Insert type casts if necessary to preserve type safety. Generate bridge methods to preserve polymorphism in extended generic types. Type erasure ensures that no new classes are created for parameterized types; consequently, generics incur no runtime overhead.

http://docs.oracle.com/javase/tutorial/java/generics/erasure.html

add the following to the "floating" view

position: 'absolute'

you may also need to add a top and left value for positioning

see this example: https://rnplay.org/apps/OjzcxQ/edit

Use the setting log4j.appender.FILE.RollingPolicy.FileNamePattern, e.g. log4j.appender.FILE.RollingPolicy.FileNamePattern=F:/logs/filename.log.%d{dd}.gz for keeping logs one month before rolling over.

I didn't wait for one month to check but I tried with mm (i.e. minutes) and confirmed it overwrites, so I am assuming it will work for all patterns.

I was facing same issue with ffmpeg library after merging two Android projects as one project.

Actually issue was arriving due to two different versions of ffmpeg library but they were loaded with same names in memory. One library was placed in JNiLibs while other was inside another library used as module. I was not able to modify the code of module as it was readonly so I renamed the one used in my own code to ffmpegCamera and loaded it in memory with same name.

System.loadLibrary("ffmpegCamera");

This resolved the issue and now both versions of libraries are loading well as separate name and process id in memory.

While this question was asked a while ago and I don't know the state of the libraries at that point, it is worth mentioning for searchers that GitPython does a good job of abstracting the command line tools so that you don't need to use subprocess. There are some useful built in abstractions that you can use, but for everything else you can do things like:

import git
repo = git.Repo( '/home/me/repodir' )
print repo.git.status()
# checkout and track a remote branch
print repo.git.checkout( 'origin/somebranch', b='somebranch' )
# add a file
print repo.git.add( 'somefile' )
# commit
print repo.git.commit( m='my commit message' )
# now we are one commit ahead
print repo.git.status()

Everything else in GitPython just makes it easier to navigate. I'm fairly well satisfied with this library and appreciate that it is a wrapper on the underlying git tools.

UPDATE: I've switched to using the sh module for not just git but most commandline utilities I need in python. To replicate the above I would do this instead:

import sh
git = sh.git.bake(_cwd='/home/me/repodir')
print git.status()
# checkout and track a remote branch
print git.checkout('-b', 'somebranch')
# add a file
print git.add('somefile')
# commit
print git.commit(m='my commit message')
# now we are one commit ahead
print git.status()

Try this one on for size.

private static void addSoftwareLibrary(File file) throws Exception {
    Method method = URLClassLoader.class.getDeclaredMethod("addURL", new Class[]{URL.class});
    method.setAccessible(true);
    method.invoke(ClassLoader.getSystemClassLoader(), new Object[]{file.toURI().toURL()});
}

This edits the system class loader to include the given library jar. It is pretty ugly, but it works.

Many unix-like systems (Linux, the BSDs, and OS X, at the very least) have the fts functions for directory traversal.

To recursively delete a directory, perform a depth-first traversal (without following symlinks) and remove every visited file:

int recursive_delete(const char *dir)
{
    int ret = 0;
    FTS *ftsp = NULL;
    FTSENT *curr;

    // Cast needed (in C) because fts_open() takes a "char * const *", instead
    // of a "const char * const *", which is only allowed in C++. fts_open()
    // does not modify the argument.
    char *files[] = { (char *) dir, NULL };

    // FTS_NOCHDIR  - Avoid changing cwd, which could cause unexpected behavior
    //                in multithreaded programs
    // FTS_PHYSICAL - Don't follow symlinks. Prevents deletion of files outside
    //                of the specified directory
    // FTS_XDEV     - Don't cross filesystem boundaries
    ftsp = fts_open(files, FTS_NOCHDIR | FTS_PHYSICAL | FTS_XDEV, NULL);
    if (!ftsp) {
        fprintf(stderr, "%s: fts_open failed: %s\n", dir, strerror(errno));
        ret = -1;
        goto finish;
    }

    while ((curr = fts_read(ftsp))) {
        switch (curr->fts_info) {
        case FTS_NS:
        case FTS_DNR:
        case FTS_ERR:
            fprintf(stderr, "%s: fts_read error: %s\n",
                    curr->fts_accpath, strerror(curr->fts_errno));
            break;

        case FTS_DC:
        case FTS_DOT:
        case FTS_NSOK:
            // Not reached unless FTS_LOGICAL, FTS_SEEDOT, or FTS_NOSTAT were
            // passed to fts_open()
            break;

        case FTS_D:
            // Do nothing. Need depth-first search, so directories are deleted
            // in FTS_DP
            break;

        case FTS_DP:
        case FTS_F:
        case FTS_SL:
        case FTS_SLNONE:
        case FTS_DEFAULT:
            if (remove(curr->fts_accpath) < 0) {
                fprintf(stderr, "%s: Failed to remove: %s\n",
                        curr->fts_path, strerror(curr->fts_errno));
                ret = -1;
            }
            break;
        }
    }

finish:
    if (ftsp) {
        fts_close(ftsp);
    }

    return ret;
}

Quick and dirty way (e.g. to see how data is stored in oracle)

SQL> select dump(dummy) dump_dummy, dummy
     , dump(10) dump_ten
from dual

DUMP_DUMMY       DUMMY DUMP_TEN            
---------------- ----- --------------------
Typ=1 Len=1: 88  X     Typ=2 Len=2: 193,11 
1 row selected.

will show that dummy column in table sys.dual has typ=1 (varchar2), while 10 is Typ=2 (number).

public class TestApp {

/**
 * @param args
 */
public static void main(String[] args) {
    System.out.println("Hi");
    Set<List<String>> bcOwnersList = new HashSet<List<String>>();
    List<String> bclist = new ArrayList<String>();
    List<String> bclist1 = new ArrayList<String>();
    List<String> object = new ArrayList<String>();
    object.add("BC11");
    object.add("C2");
    bclist.add("BC1");
    bclist.add("BC2");
    bclist.add("BC3");
    bclist.add("BC4");
    bclist.add("BC5");
    bcOwnersList.add(bclist);
    bcOwnersList.add(object);

    bclist1.add("BC11");
    bclist1.add("BC21");
    bclist1.add("BC31");
    bclist1.add("BC4");
    bclist1.add("BC5");

    List<String> listList= new ArrayList<String>();
    for(List<String> ll : bcOwnersList){
        listList = (List<String>) CollectionUtils.union(listList,CollectionUtils.intersection(ll, bclist1));
    }
    /*for(List<String> lists : listList){
        test = (List<String>) CollectionUtils.union(test, listList);
    }*/
    for(Object l : listList){
        System.out.println(l.toString());
    }
    System.out.println(bclist.contains("BC"));

}

}

For Example you have the package "com.abc" and you have multiple packages inside it, You can use like

@ComponentScan("com.abc")

Map is an interface in Java. And HashMap is an implementation of that interface (i.e. provides all of the methods specified in the interface).

For people looking this up now:

It seems that now setting the User-Agent header is allowed since Firefox 43. See https://developer.mozilla.org/en-US/docs/Glossary/Forbidden_header_name for the current list of forbidden headers.

I've get closer to VisualStudio-like behaviour by setting the "Autocomplete Trigger for Java" to

.(abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ

and setting delay to 0.

Now I'd like to realize how to make it autocomplete method name when I press ( as VS's Intellisense does.

Static indexes and small list?

Don't forget that if the list is small and the indexes don't change, as in your example, sometimes the best thing is to use sequence unpacking:

_,a1,a2,_,_,a3,_ = a

The performance is much better and you can also save one line of code:

 %timeit _,a1,b1,_,_,c1,_ = a
10000000 loops, best of 3: 154 ns per loop 
%timeit itemgetter(*b)(a)
1000000 loops, best of 3: 753 ns per loop
 %timeit [ a[i] for i in b]
1000000 loops, best of 3: 777 ns per loop
 %timeit map(a.__getitem__, b)
1000000 loops, best of 3: 1.42 µs per loop

string newString = str.Substring(0,10)

will give you the first 10 characters (from position 0 to position 9).

See here.

 pod 'Alamofire'
 pod 'SwiftyJSON'
 pod 'ReachabilitySwift'



import UIKit
import Alamofire
import SwiftyJSON
import SystemConfiguration

class WebServiceHelper: NSObject {

    typealias SuccessHandler = (JSON) -> Void
    typealias FailureHandler = (Error) -> Void

    // MARK: - Internet Connectivity

    class func isConnectedToNetwork() -> Bool {

        var zeroAddress = sockaddr_in()
        zeroAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
        zeroAddress.sin_family = sa_family_t(AF_INET)

        guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {
            $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
                SCNetworkReachabilityCreateWithAddress(nil, $0)
            }
        }) else {
            return false
        }

        var flags: SCNetworkReachabilityFlags = []
        if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
            return false
        }

        let isReachable = flags.contains(.reachable)
        let needsConnection = flags.contains(.connectionRequired)

        return (isReachable && !needsConnection)
    }

    // MARK: - Helper Methods

    class func getWebServiceCall(_ strURL : String, isShowLoader : Bool, success : @escaping SuccessHandler, failure : @escaping FailureHandler)
    {
        if isConnectedToNetwork() {

            print(strURL)

            if isShowLoader == true {

                AppDelegate.getDelegate().showLoader()
            }

            Alamofire.request(strURL).responseJSON { (resObj) -> Void in

                print(resObj)

                if resObj.result.isSuccess {
                    let resJson = JSON(resObj.result.value!)

                    if isShowLoader == true {
                        AppDelegate.getDelegate().dismissLoader()
                    }

                    debugPrint(resJson)
                    success(resJson)
                }
                if resObj.result.isFailure {
                    let error : Error = resObj.result.error!

                    if isShowLoader == true {
                        AppDelegate.getDelegate().dismissLoader()
                    }
                    debugPrint(error)
                    failure(error)
                }
            }
        }else {


            CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
        }
    }

    class func getWebServiceCall(_ strURL : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler,  failure :@escaping FailureHandler){
        if isConnectedToNetwork() {

            if isShowLoader == true {
                AppDelegate.getDelegate().showLoader()
            }


            Alamofire.request(strURL, method: .get, parameters: params, encoding: JSONEncoding.default, headers: nil).responseJSON(completionHandler: {(resObj) -> Void in

                print(resObj)

                if resObj.result.isSuccess {
                    let resJson = JSON(resObj.result.value!)

                    if isShowLoader == true {
                        AppDelegate.getDelegate().dismissLoader()
                    }

                    success(resJson)
                }
                if resObj.result.isFailure {
                    let error : Error = resObj.result.error!

                    if isShowLoader == true {
                        AppDelegate.getDelegate().dismissLoader()
                    }

                    failure(error)
                }

            })
        }
    else {

            CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
    }

    }



    class func postWebServiceCall(_ strURL : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler, failure :@escaping FailureHandler)
    {
        if isConnectedToNetwork()
        {

            if isShowLoader == true
            {
                AppDelegate.getDelegate().showLoader()
            }

            Alamofire.request(strURL, method: .post, parameters: params, encoding: JSONEncoding.default, headers: nil).responseJSON(completionHandler: {(resObj) -> Void in

                print(resObj)

                if resObj.result.isSuccess
                {
                    let resJson = JSON(resObj.result.value!)

                    if isShowLoader == true
                    {
                        AppDelegate.getDelegate().dismissLoader()
                    }

                    success(resJson)
                }

                if resObj.result.isFailure
                {
                    let error : Error = resObj.result.error!

                    if isShowLoader == true
                    {
                        AppDelegate.getDelegate().dismissLoader()
                    }

                    failure(error)
                }
            })
        }else {
            CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
        }
    }


    class func postWebServiceCallWithImage(_ strURL : String, image : UIImage!, strImageParam : String, params : [String : AnyObject]?, isShowLoader : Bool, success : @escaping SuccessHandler, failure : @escaping FailureHandler)
    {
        if isConnectedToNetwork() {
            if isShowLoader == true
            {
                AppDelegate.getDelegate().showLoader()
            }

            Alamofire.upload(
                multipartFormData: { multipartFormData in
                    if let imageData = UIImageJPEGRepresentation(image, 0.5) {
                        multipartFormData.append(imageData, withName: "Image.jpg")
                    }

                    for (key, value) in params! {

                        let data = value as! String

                        multipartFormData.append(data.data(using: String.Encoding.utf8)!, withName: key)
                        print(multipartFormData)
                    }
                },
                to: strURL,
                encodingCompletion: { encodingResult in
                    switch encodingResult {
                    case .success(let upload, _, _):
                        upload.responseJSON { response in
                            debugPrint(response)
                            //let datastring = String(data: response, encoding: String.Encoding.utf8)
                           // print(datastring)
                        }
                    case .failure(let encodingError):
                        print(encodingError)
                        if isShowLoader == true
                        {
                            AppDelegate.getDelegate().dismissLoader()
                        }

                        let error : NSError = encodingError as NSError
                        failure(error)
                    }

                    switch encodingResult {
                    case .success(let upload, _, _):
                        upload.responseJSON { (response) -> Void in

                            if response.result.isSuccess
                            {
                                let resJson = JSON(response.result.value!)

                                if isShowLoader == true
                                {
                                    AppDelegate.getDelegate().dismissLoader()
                                }

                                success(resJson)
                            }

                            if response.result.isFailure
                            {
                                let error : Error = response.result.error! as Error

                                if isShowLoader == true
                                {
                                    AppDelegate.getDelegate().dismissLoader()
                                }

                                failure(error)
                            }

                        }
                    case .failure(let encodingError):
                        if isShowLoader == true
                        {
                            AppDelegate.getDelegate().dismissLoader()
                        }

                        let error : NSError = encodingError as NSError
                        failure(error)
                    }
                }
            )
        }
        else
        {
            CommonMethods.showAlertWithError("", strMessage: Messages.NO_NETWORK, withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
        }
    }

}


==================================


Call Method


let aParams : [String : String] = [
                "ReqCode" : Constants.kRequestCodeLogin,
                ]

            WebServiceHelper.postWebServiceCall(Constants.BaseURL, params: aParams as [String : AnyObject]?, isShowLoader: true, success: { (responceObj) in


                if "\(responceObj["RespCode"])" != "1"
                {
                    let alert = UIAlertController(title: Constants.kAppName, message: "\(responceObj["RespMsg"])", preferredStyle: UIAlertControllerStyle.alert)
                    let OKAction = UIAlertAction(title: "OK", style: .default) { (action:UIAlertAction!) in
                    }
                    alert.addAction(OKAction)
                    self.present(alert, animated: true, completion: nil)
                }
                else
                {
                    let aParams : [String : String] = [
                        "Password" : self.dictAddLogin[AddLoginConstants.kPassword]!,
                        ]
                    CommonMethods.saveCustomObject(aParams as AnyObject?, key: Constants.kLoginData)

                }
                }, failure:
                { (error) in

                    CommonMethods.showAlertWithError(Constants.kALERT_TITLE_Error, strMessage: error.localizedDescription,withTarget: (AppDelegate.getDelegate().window!.rootViewController)!)
            })
        }

I could also just add that I knew everything about the syntax change between Python2.7 and Python3, and my code was correctly written as print("string") and even print(f"string")...

But after some time of debugging I realized that my bash script was calling python like:

python file_name.py

which had the effect of calling my python script by default using python2.7 which gave the error. So I changed my bash script to:

python3 file_name.py

which of coarse uses python3 to run the script which fixed the error.

update TABLENAME
set COLUMNNAME = COLUMNNAME + 1
where id = 'YOURID'

Can with defaulth value (T-SQL)

ALTER TABLE
    Regions
ADD
    HasPhotoInReadyStorage BIT NULL, --this column is nullable
    HasPhotoInWorkStorage BIT NOT NULL, --this column is not nullable
    HasPhotoInMaterialStorage BIT NOT NULL DEFAULT(0) --this column default value is false
GO

Suppose your origin and upstream info is like below

   $ git remote -v
   origin  [email protected]:<yourname>/<repo_name>.git (fetch)
   origin  [email protected]:<yourname>/<repo_name>.git (push)
   upstream   [email protected]:<repo_owner>/<repo_name>.git (fetch)
   upstream   [email protected]:<repo_owner>/<repo_name>.git (push)

and your branch name is like

   <repo_owner>:<BranchName>

then

   git pull origin <BranchName>

shall do the job

MySQL evaluates now() once per statement when the statement commences execution. So it is safe to have multiple visible now() calls per statement.

select now(); select now(), sleep(10), now(); select now();
+---------------------+
| now()               |
+---------------------+
| 2018-11-05 16:54:00 |
+---------------------+
1 row in set (0.00 sec)

+---------------------+-----------+---------------------+
| now()               | sleep(10) | now()               |
+---------------------+-----------+---------------------+
| 2018-11-05 16:54:00 |         0 | 2018-11-05 16:54:00 |
+---------------------+-----------+---------------------+
1 row in set (10.00 sec)

+---------------------+
| now()               |
+---------------------+
| 2018-11-05 16:54:10 |
+---------------------+
1 row in set (0.00 sec)

Let avg be the list, then:

In [29]: a = n.array((avg))
In [31]: a.tofile('avgpoints.dat',sep='\n',dtype = '%f')

You can use %e or %s depending on your requirement.

You just do an opposite comparison. if Col2 <= 1. This will return a boolean Series with False values for those greater than 1 and True values for the other. If you convert it to an int64 dtype, True becomes 1 and False become 0,

df['Col3'] = (df['Col2'] <= 1).astype(int)

If you want a more general solution, where you can assign any number to Col3 depending on the value of Col2 you should do something like:

df['Col3'] = df['Col2'].map(lambda x: 42 if x > 1 else 55)

Or:

df['Col3'] = 0
condition = df['Col2'] > 1
df.loc[condition, 'Col3'] = 42
df.loc[~condition, 'Col3'] = 55

Remember to include the native library folder in PATH.

This return only filename without any extension in 1 row:

$path = "/etc/sudoers.php";    
print array_shift(explode(".", basename($path)));
// will print "sudoers"

$file = "file_name.php";    
print array_shift(explode(".", basename($file)));
// will print "file_name"

With python 3.6+:

msg['Subject'] = f"Auto Hella Restart Report {sys.argv[1]}"

• \s matches any white-space character
• \S matches any non-white-space character
• You can match a space character with just the space character;
• [^ ] matches anything but a space character.

Pick whichever is most appropriate.

<context:property-placeholder ... /> is the XML equivalent to the PropertyPlaceholderConfigurer. So, prefer that. The <util:properties/> simply factories a java.util.Properties instance that you can inject.

In Spring 3.1 (not 3.0...) you can do something like this:

@Configuration
@PropertySource("/foo/bar/services.properties")
public class ServiceConfiguration { 

    @Autowired Environment environment; 

    @Bean public javax.sql.DataSource dataSource( ){ 
        String user = this.environment.getProperty("ds.user");
        ...
    } 
}

In Spring 3.0, you can "access" properties defined using the PropertyPlaceHolderConfigurer mechanism using the SpEl annotations:

@Value("${ds.user}") private String user;

If you want to remove the XML all together, simply register the PropertyPlaceholderConfigurer manually using Java configuration. I prefer the 3.1 approach. But, if youre using the Spring 3.0 approach (since 3.1's not GA yet...), you can now define the above XML like this:

@Configuration 
public class MySpring3Configuration {     
        @Bean 
        public static PropertyPlaceholderConfigurer configurer() { 
             PropertyPlaceholderConfigurer ppc = ...
             ppc.setLocations(...);
             return ppc; 
        } 

        @Bean 
        public class DataSource dataSource(
                @Value("${ds.user}") String user, 
                @Value("${ds.pw}") String pw, 
                ...) { 
            DataSource ds = ...
            ds.setUser(user);
            ds.setPassword(pw);                        
            ...
            return ds;
        }
}

Note that the PPC is defined using a static bean definition method. This is required to make sure the bean is registered early, because the PPC is a BeanFactoryPostProcessor - it can influence the registration of the beans themselves in the context, so it necessarily has to be registered before everything else.

Simple socket server app example

I've already posted a client example at: https://stackoverflow.com/a/35971718/895245 , so here goes a server example.

This example app runs a server that returns a ROT-1 cypher of the input.

You would then need to add an Exit button + some sleep delays, but this should get you started.

To play with it:

• install the app
• get your phone and PC on a LAN
• find your phone's IP with https://android.stackexchange.com/a/130468/126934
• run netcat $PHONE_IP 12345
• type some lines

Android sockets are the same as Java's, except we have to deal with some permission issues.

src/com/cirosantilli/android_cheat/socket/Main.java

package com.cirosantilli.android_cheat.socket;

import android.app.Activity;
import android.app.IntentService;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;

public class Main extends Activity {
    static final String TAG = "AndroidCheatSocket";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d(Main.TAG, "onCreate");
        Main.this.startService(new Intent(Main.this, MyService.class));
    }

    public static class MyService extends IntentService {
        public MyService() {
            super("MyService");
        }
        @Override
        protected void onHandleIntent(Intent intent) {
            Log.d(Main.TAG, "onHandleIntent");
            final int port = 12345;
            ServerSocket listener = null;
            try {
                listener = new ServerSocket(port);
                Log.d(Main.TAG, String.format("listening on port = %d", port));
                while (true) {
                    Log.d(Main.TAG, "waiting for client");
                    Socket socket = listener.accept();
                    Log.d(Main.TAG, String.format("client connected from: %s", socket.getRemoteSocketAddress().toString()));
                    BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                    PrintStream out = new PrintStream(socket.getOutputStream());
                    for (String inputLine; (inputLine = in.readLine()) != null;) {
                        Log.d(Main.TAG, "received");
                        Log.d(Main.TAG, inputLine);
                        StringBuilder outputStringBuilder = new StringBuilder("");
                        char inputLineChars[] = inputLine.toCharArray();
                        for (char c : inputLineChars)
                            outputStringBuilder.append(Character.toChars(c + 1));
                        out.println(outputStringBuilder);
                    }
                }
            } catch(IOException e) {
                Log.d(Main.TAG, e.toString());
            }
        }
    }
}

We need a Service or other background method or else: How do I fix android.os.NetworkOnMainThreadException?

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.cirosantilli.android_cheat.socket"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="22" />
    <uses-permission android:name="android.permission.INTERNET" />
    <application android:label="AndroidCheatsocket">
        <activity android:name="Main">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name=".Main$MyService" />
    </application>
</manifest>

We must add: <uses-permission android:name="android.permission.INTERNET" /> or else: Java socket IOException - permission denied

On GitHub with a build.xml: https://github.com/cirosantilli/android-cheat/tree/92de020d0b708549a444ebd9f881de7b240b3fbc/socket

Modify the DataNode class so that it implements Comparable interface.

public int compareTo(DataNode o)
{
     return(degree - o.degree);
}

then just use

Collections.sort(nodeList);

They serve the actual image inside CSS so there will be less HTTP requests per page.

this short code worked for me:

Configuration wConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ServiceModelSectionGroup wServiceSection = ServiceModelSectionGroup.GetSectionGroup(wConfig);

ClientSection wClientSection = wServiceSection.Client;
wClientSection.Endpoints[0].Address = <your address>;
wConfig.Save();

Of course you have to create the ServiceClient proxy AFTER the config has changed. You also need to reference the System.Configuration and System.ServiceModel assemblies to make this work.

Cheers

You can use the form attribute id to span a form over multiple elements each using the form attribute with the name of the form as follows:

<table>
     <tr>
          <td>
               <form method="POST" id="form-1" action="/submit/form-1"></form>
               <input name="a" form="form-1">
          </td>
          <td><input name="b" form="form-1"></td>
          <td><input name="c" form="form-1"></td>
          <td><input type="submit" form="form-1"></td>
     </tr>
</table>

You should import http from @angular/http in your service:

import {Http} from '@angular/http';

constructor(private http: http) {} // <--Then Inject it here


// now you can use it in any function eg:
getUsers() {
    return this.http.get('whateverURL');
}

Benchmarks & introducing Numba

1. Summary

• The accepted answer (scipy.ndimage.interpolation.shift) is the slowest solution listed in this page.
• Numba (@numba.njit) gives some performance boost when array size smaller than ~25.000
• "Any method" equally good when array size large (>250.000).
• The fastest option really depends on
      (1)  Length of your arrays
      (2)  Amount of shift you need to do.
• Below is the picture of the timings of all different methods listed on this page (2020-07-11), using constant shift = 10. As one can see, with small array sizes some methods are use more than +2000% time than the best method.

2. Detailed benchmarks with the best options

• Choose shift4_numba (defined below) if you want good all-arounder

3. Code

3.1 shift4_numba

• Good all-arounder; max 20% wrt. to the best method with any array size
• Best method with medium array sizes: ~ 500 < N < 20.000.
• Caveat: Numba jit (just in time compiler) will give performance boost only if you are calling the decorated function more than once. The first call takes usually 3-4 times longer than the subsequent calls.

import numba

@numba.njit
def shift4_numba(arr, num, fill_value=np.nan):
    if num >= 0:
        return np.concatenate((np.full(num, fill_value), arr[:-num]))
    else:
        return np.concatenate((arr[-num:], np.full(-num, fill_value)))

3.2. shift5_numba

• Best option with small (N <= 300.. 1500) array sizes. Treshold depends on needed amount of shift.
• Good performance on any array size; max + 50% compared to the fastest solution.
• Caveat: Numba jit (just in time compiler) will give performance boost only if you are calling the decorated function more than once. The first call takes usually 3-4 times longer than the subsequent calls.

import numba

@numba.njit
def shift5_numba(arr, num, fill_value=np.nan):
    result = np.empty_like(arr)
    if num > 0:
        result[:num] = fill_value
        result[num:] = arr[:-num]
    elif num < 0:
        result[num:] = fill_value
        result[:num] = arr[-num:]
    else:
        result[:] = arr
    return result

3.3. shift5

• Best method with array sizes ~ 20.000 < N < 250.000
• Same as shift5_numba, just remove the @numba.njit decorator.

4 Appendix

4.1 Details about used methods

• shift_scipy: scipy.ndimage.interpolation.shift (scipy 1.4.1) - The option from accepted answer, which is clearly the slowest alternative.
• shift1: np.roll and out[:num] xnp.nan by IronManMark20 & gzc
• shift2: np.roll and np.put by IronManMark20
• shift3: np.pad and slice by gzc
• shift4: np.concatenate and np.full by chrisaycock
• shift5: using two times result[slice] = x by chrisaycock
• shift#_numba: @numba.njit decorated versions of the previous.

The shift2 and shift3 contained functions that were not supported by the current numba (0.50.1).

4.2 Other test results

4.2.1 Relative timings, all methods

• Relative timings, 10% shift, all methods
• Relative timings, constant shift (10), all methods

4.2.2 Raw timings, all methods

• Raw timings, constant shift (10), all methods
• Raw timings, 10% shift, all methods

4.2.3 Raw timings, few best methods

• Raw timings with small arrays, constant shift (10), few best methods
• Raw timings with small arrays, 10% shift, few best methods
• Raw timings with large arrays, constant shift (10), few best methods
• Raw timings with large arrays, 10% shift, few best methods

Try this:

SELECT COUNT(DECODE(SUBSTR(UPPER(:main_string),rownum,LENGTH(:search_char)),UPPER(:search_char),1)) search_char_count
FROM DUAL
connect by rownum <= length(:main_string);

It determines the number of single character occurrences as well as the sub-string occurrences in main string.

Update: For extensions to System.Diagnostics, providing some of the missing listeners you might want, see Essential.Diagnostics on CodePlex (http://essentialdiagnostics.codeplex.com/)

Frameworks

Q: What frameworks do you use?

A: System.Diagnostics.TraceSource, built in to .NET 2.0.

It provides powerful, flexible, high performance logging for applications, however many developers are not aware of its capabilities and do not make full use of them.

There are some areas where additional functionality is useful, or sometimes the functionality exists but is not well documented, however this does not mean that the entire logging framework (which is designed to be extensible) should be thrown away and completely replaced like some popular alternatives (NLog, log4net, Common.Logging, and even EntLib Logging).

Rather than change the way you add logging statements to your application and re-inventing the wheel, just extended the System.Diagnostics framework in the few places you need it.

It seems to me the other frameworks, even EntLib, simply suffer from Not Invented Here Syndrome, and I think they have wasted time re-inventing the basics that already work perfectly well in System.Diagnostics (such as how you write log statements), rather than filling in the few gaps that exist. In short, don't use them -- they aren't needed.

Features you may not have known:

• Using the TraceEvent overloads that take a format string and args can help performance as parameters are kept as separate references until after Filter.ShouldTrace() has succeeded. This means no expensive calls to ToString() on parameter values until after the system has confirmed message will actually be logged.
• The Trace.CorrelationManager allows you to correlate log statements about the same logical operation (see below).
• VisualBasic.Logging.FileLogTraceListener is good for writing to log files and supports file rotation. Although in the VisualBasic namespace, it can be just as easily used in a C# (or other language) project simply by including the DLL.
• When using EventLogTraceListener if you call TraceEvent with multiple arguments and with empty or null format string, then the args are passed directly to the EventLog.WriteEntry() if you are using localized message resources.
• The Service Trace Viewer tool (from WCF) is useful for viewing graphs of activity correlated log files (even if you aren't using WCF). This can really help debug complex issues where multiple threads/activites are involved.
• Avoid overhead by clearing all listeners (or removing Default); otherwise Default will pass everything to the trace system (and incur all those ToString() overheads).

Areas you might want to look at extending (if needed):

• Database trace listener
• Colored console trace listener
• MSMQ / Email / WMI trace listeners (if needed)
• Implement a FileSystemWatcher to call Trace.Refresh for dynamic configuration changes

Other Recommendations:

Use structed event id's, and keep a reference list (e.g. document them in an enum).

Having unique event id's for each (significant) event in your system is very useful for correlating and finding specific issues. It is easy to track back to the specific code that logs/uses the event ids, and can make it easy to provide guidance for common errors, e.g. error 5178 means your database connection string is wrong, etc.

Event id's should follow some kind of structure (similar to the Theory of Reply Codes used in email and HTTP), which allows you to treat them by category without knowing specific codes.

e.g. The first digit can detail the general class: 1xxx can be used for 'Start' operations, 2xxx for normal behaviour, 3xxx for activity tracing, 4xxx for warnings, 5xxx for errors, 8xxx for 'Stop' operations, 9xxx for fatal errors, etc.

The second digit can detail the area, e.g. 21xx for database information (41xx for database warnings, 51xx for database errors), 22xx for calculation mode (42xx for calculation warnings, etc), 23xx for another module, etc.

Assigned, structured event id's also allow you use them in filters.

Q: If you use tracing, do you make use of Trace.Correlation.StartLogicalOperation?

A: Trace.CorrelationManager is very useful for correlating log statements in any sort of multi-threaded environment (which is pretty much anything these days).

You need at least to set the ActivityId once for each logical operation in order to correlate.

Start/Stop and the LogicalOperationStack can then be used for simple stack-based context. For more complex contexts (e.g. asynchronous operations), using TraceTransfer to the new ActivityId (before changing it), allows correlation.

The Service Trace Viewer tool can be useful for viewing activity graphs (even if you aren't using WCF).

Q: Do you write this code manually, or do you use some form of aspect oriented programming to do it? Care to share a code snippet?

A: You may want to create a scope class, e.g. LogicalOperationScope, that (a) sets up the context when created and (b) resets the context when disposed.

This allows you to write code such as the following to automatically wrap operations:

  using( LogicalOperationScope operation = new LogicalOperationScope("Operation") )
  {
    // .. do work here
  }

On creation the scope could first set ActivityId if needed, call StartLogicalOperation and then log a TraceEventType.Start message. On Dispose it could log a Stop message, and then call StopLogicalOperation.

Q: Do you provide any form of granularity over trace sources? E.g., WPF TraceSources allow you to configure them at various levels.

A: Yes, multiple Trace Sources are useful / important as systems get larger.

Whilst you probably want to consistently log all Warning & above, or all Information & above messages, for any reasonably sized system the volume of Activity Tracing (Start, Stop, etc) and Verbose logging simply becomes too much.

Rather than having only one switch that turns it all either on or off, it is useful to be able to turn on this information for one section of your system at a time.

This way, you can locate significant problems from the usually logging (all warnings, errors, etc), and then "zoom in" on the sections you want and set them to Activity Tracing or even Debug levels.

The number of trace sources you need depends on your application, e.g. you may want one trace source per assembly or per major section of your application.

If you need even more fine tuned control, add individual boolean switches to turn on/off specific high volume tracing, e.g. raw message dumps. (Or a separate trace source could be used, similar to WCF/WPF).

You might also want to consider separate trace sources for Activity Tracing vs general (other) logging, as it can make it a bit easier to configure filters exactly how you want them.

Note that messages can still be correlated via ActivityId even if different sources are used, so use as many as you need.

Listeners

Q: What log outputs do you use?

This can depend on what type of application you are writing, and what things are being logged. Usually different things go in different places (i.e. multiple outputs).

I generally classify outputs into three groups:

(1) Events - Windows Event Log (and trace files)

e.g. If writing a server/service, then best practice on Windows is to use the Windows Event Log (you don't have a UI to report to).

In this case all Fatal, Error, Warning and (service-level) Information events should go to the Windows Event Log. The Information level should be reserved for these type of high level events, the ones that you want to go in the event log, e.g. "Service Started", "Service Stopped", "Connected to Xyz", and maybe even "Schedule Initiated", "User Logged On", etc.

In some cases you may want to make writing to the event log a built-in part of your application and not via the trace system (i.e. write Event Log entries directly). This means it can't accidentally be turned off. (Note you still also want to note the same event in your trace system so you can correlate).

In contrast, a Windows GUI application would generally report these to the user (although they may also log to the Windows Event Log).

Events may also have related performance counters (e.g. number of errors/sec), and it can be important to co-ordinate any direct writing to the Event Log, performance counters, writing to the trace system and reporting to the user so they occur at the same time.

i.e. If a user sees an error message at a particular time, you should be able to find the same error message in the Windows Event Log, and then the same event with the same timestamp in the trace log (along with other trace details).

(2) Activities - Application Log files or database table (and trace files)

This is the regular activity that a system does, e.g. web page served, stock market trade lodged, order taken, calculation performed, etc.

Activity Tracing (start, stop, etc) is useful here (at the right granuality).

Also, it is very common to use a specific Application Log (sometimes called an Audit Log). Usually this is a database table or an application log file and contains structured data (i.e. a set of fields).

Things can get a bit blurred here depending on your application. A good example might be a web server which writes each request to a web log; similar examples might be a messaging system or calculation system where each operation is logged along with application-specific details.

A not so good example is stock market trades or a sales ordering system. In these systems you are probably already logging the activity as they have important business value, however the principal of correlating them to other actions is still important.

As well as custom application logs, activities also often have related peformance counters, e.g. number of transactions per second.

In generally you should co-ordinate logging of activities across different systems, i.e. write to your application log at the same time as you increase your performance counter and log to your trace system. If you do all at the same time (or straight after each other in the code), then debugging problems is easier (than if they all occur at diffent times/locations in the code).

(3) Debug Trace - Text file, or maybe XML or database.

This is information at Verbose level and lower (e.g. custom boolean switches to turn on/off raw data dumps). This provides the guts or details of what a system is doing at a sub-activity level.

This is the level you want to be able to turn on/off for individual sections of your application (hence the multiple sources). You don't want this stuff cluttering up the Windows Event Log. Sometimes a database is used, but more likely are rolling log files that are purged after a certain time.

A big difference between this information and an Application Log file is that it is unstructured. Whilst an Application Log may have fields for To, From, Amount, etc., Verbose debug traces may be whatever a programmer puts in, e.g. "checking values X={value}, Y=false", or random comments/markers like "Done it, trying again".

One important practice is to make sure things you put in application log files or the Windows Event Log also get logged to the trace system with the same details (e.g. timestamp). This allows you to then correlate the different logs when investigating.

If you are planning to use a particular log viewer because you have complex correlation, e.g. the Service Trace Viewer, then you need to use an appropriate format i.e. XML. Otherwise, a simple text file is usually good enough -- at the lower levels the information is largely unstructured, so you might find dumps of arrays, stack dumps, etc. Provided you can correlated back to more structured logs at higher levels, things should be okay.

Q: If using files, do you use rolling logs or just a single file? How do you make the logs available for people to consume?

A: For files, generally you want rolling log files from a manageability point of view (with System.Diagnostics simply use VisualBasic.Logging.FileLogTraceListener).

Availability again depends on the system. If you are only talking about files then for a server/service, rolling files can just be accessed when necessary. (Windows Event Log or Database Application Logs would have their own access mechanisms).

If you don't have easy access to the file system, then debug tracing to a database may be easier. [i.e. implement a database TraceListener].

One interesting solution I saw for a Windows GUI application was that it logged very detailed tracing information to a "flight recorder" whilst running and then when you shut it down if it had no problems then it simply deleted the file.

If, however it crashed or encountered a problem then the file was not deleted. Either if it catches the error, or the next time it runs it will notice the file, and then it can take action, e.g. compress it (e.g. 7zip) and email it or otherwise make available.

Many systems these days incorporate automated reporting of failures to a central server (after checking with users, e.g. for privacy reasons).

Viewing

Q: What tools to you use for viewing the logs?

A: If you have multiple logs for different reasons then you will use multiple viewers.

Notepad/vi/Notepad++ or any other text editor is the basic for plain text logs.

If you have complex operations, e.g. activities with transfers, then you would, obviously, use a specialized tool like the Service Trace Viewer. (But if you don't need it, then a text editor is easier).

As I generally log high level information to the Windows Event Log, then it provides a quick way to get an overview, in a structured manner (look for the pretty error/warning icons). You only need to start hunting through text files if there is not enough in the log, although at least the log gives you a starting point. (At this point, making sure your logs have co-ordinated entires becomes useful).

Generally the Windows Event Log also makes these significant events available to monitoring tools like MOM or OpenView.

Others --

If you log to a Database it can be easy to filter and sort informatio (e.g. zoom in on a particular activity id. (With text files you can use Grep/PowerShell or similar to filter on the partiular GUID you want)

MS Excel (or another spreadsheet program). This can be useful for analysing structured or semi-structured information if you can import it with the right delimiters so that different values go in different columns.

When running a service in debug/test I usually host it in a console application for simplicity I find a colored console logger useful (e.g. red for errors, yellow for warnings, etc). You need to implement a custom trace listener.

Note that the framework does not include a colored console logger or a database logger so, right now, you would need to write these if you need them (it's not too hard).

It really annoys me that several frameworks (log4net, EntLib, etc) have wasted time re-inventing the wheel and re-implemented basic logging, filtering, and logging to text files, the Windows Event Log, and XML files, each in their own different way (log statements are different in each); each has then implemented their own version of, for example, a database logger, when most of that already existed and all that was needed was a couple more trace listeners for System.Diagnostics. Talk about a big waste of duplicate effort.

Q: If you are building an ASP.NET solution, do you also use ASP.NET Health Monitoring? Do you include trace output in the health monitor events? What about Trace.axd?

These things can be turned on/off as needed. I find Trace.axd quite useful for debugging how a server responds to certain things, but it's not generally useful in a heavily used environment or for long term tracing.

Q: What about custom performance counters?

For a professional application, especially a server/service, I expect to see it fully instrumented with both Performance Monitor counters and logging to the Windows Event Log. These are the standard tools in Windows and should be used.

You need to make sure you include installers for the performance counters and event logs that you use; these should be created at installation time (when installing as administrator). When your application is running normally it should not need have administration privileges (and so won't be able to create missing logs).

This is a good reason to practice developing as a non-administrator (have a separate admin account for when you need to install services, etc). If writing to the Event Log, .NET will automatically create a missing log the first time you write to it; if you develop as a non-admin you will catch this early and avoid a nasty surprise when a customer installs your system and then can't use it because they aren't running as administrator.

Try to check it's size with sizeof if 0 no elements.

Use jquery to apply class to all tr unobtrusively.

$(”table td”).addClass(”right-align-class");

Use enhanced filters on td in case you want to select a particular td.

See jquery

Restart your IDE and everything will be fine

You can use code like this:

char *MyFunction(some arguments...)
{
    char *pointer = malloc(size for the new array);
    if (!pointer)
        An error occurred, abort or do something about the error.
    return pointer; // Return address of memory to the caller.
}

When you do this, the memory should later be freed, by passing the address to free.

There are other options. A routine might return a pointer to an array (or portion of an array) that is part of some existing structure. The caller might pass an array, and the routine merely writes into the array, rather than allocating space for a new array.

You need to specify the classpath. This should do it:

java -cp . Echo "hello"

This tells java to use . (the current directory) as its classpath, i.e. the place where it looks for classes. Note than when you use packages, the classpath has to contain the root directory, not the package subdirectories. e.g. if your class is my.package.Echo and the .class file is bin/my/package/Echo.class, the correct classpath directory is bin.

You can record a macro that removes the first blank line, and positions the cursor correctly for the second line. Then you can repeat executing that macro.

For Swift 3, the below code scales the image keeping the aspect ratio. You can read more about the ImageContext in Apple's documentation:

extension UIImage {
    class func resizeImage(image: UIImage, newHeight: CGFloat) -> UIImage {
        let scale = newHeight / image.size.height
        let newWidth = image.size.width * scale
        UIGraphicsBeginImageContext(CGSize(width: newWidth, height: newHeight))
        image.draw(in: CGRect(x: 0, y: 0, width: newWidth, height: newHeight))
        let newImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return newImage!
    }
}

To use it, call resizeImage() method:

UIImage.resizeImage(image: yourImageName, newHeight: yourImageNewHeight)

You should check whether the distance from the center of the circle to the point is smaller than the radius

using Python

if (x-center_x)**2 + (y-center_y)**2 <= radius**2:
    # inside circle

Same question already answered here: How to list/download the recursive dependencies of a debian package?

try:

PACKAGES="wget unzip"
apt-get download $(apt-cache depends --recurse --no-recommends --no-suggests \
  --no-conflicts --no-breaks --no-replaces --no-enhances \
  --no-pre-depends ${PACKAGES} | grep "^\w")

What you describe is the correct way to handle this.

You said that you want to stay in the GUI. You can usually set the execute bit through the file properties menu. You could also learn how to create a custom action for the context menu to do this for you if you're so inclined. This depends on your desktop environment of course.

If you use a more advanced editor, you can script the action to happen when the file is saved. For example (I'm only really familiar with vim), you could add this to your .vimrc to make any new file that starts with "#!/*/bin/*" executable.

au BufWritePost * if getline(1) =~ "^#!" | if getline(1) =~ "/bin/" | silent !chmod +x <afile> | endif | endif

This should be OK, but is Internet Explorer specific:

<td title="lineone
linetwo 
etc...">

As others have mentioned, the only other way is to use an HTML + JavaScript based tooltip if you're only interested in the tooltip. If this is for accessibility then you will probably need to stick to just single lines for consistency.

Assign position:relative to .outside, and then position:absolute; bottom:0; to your .inside.

Like so:

.outside {
    position:relative;
}
.inside {
    position: absolute;
    bottom: 0;
}

Angular is based on observable instead of promise base as of angularjs 1.x, so when we try to get data using http it returns observable instead of promise, like you did

 return this.http
      .get(this.configEndPoint)
      .map(res => res.json());

then to get data and show on view we have to convert it into desired form using RxJs functions like .map() function and .subscribe()

.map() is used to convert the observable (received from http request)to any form like .json(), .text() as stated in Angular's official website,

.subscribe() is used to subscribe those observable response and ton put into some variable so from which we display it into the view

this.myService.getConfig().subscribe(res => {
   console.log(res);
   this.data = res;
});

in mvc 5

              @Html.EditorFor(x => x.Address, 
              new {htmlAttributes = new {@class = "form-control", 
                   @placeholder = "Complete Address", @cols = 10, @rows = 10 } })

Try this using this single code:

import javax.ws.rs.POST;
import javax.ws.rs.Path;

@Path("/serviceX")
public class MyClassRESTService {

    @POST
    @Path("/doSomething")   
    public void someMethod(String x) {

        System.out.println(x);
                // String x contains the body, you can process
                // it, parse it using JAXB and so on ...

    }
}

The url for try rest services ends .... /serviceX/doSomething

Simply like that :

<a id="myLink" onclick="alert('link click');">LINK 1</a>
<a id="myLink2" onclick="document.getElementById('myLink').click()">Click link 1</a>

or at page load :

<body onload="document.getElementById('myLink').click()">
...
<a id="myLink" onclick="alert('link click');">LINK 1</a>
...
</body>

This is not ideal as it removes all, but might work for your needs:

z = document.querySelector('video');
z.parentNode.replaceChild(z.cloneNode(1), z);

Cloning a node copies all of its attributes and their values, including intrinsic (in–line) listeners. It does not copy event listeners added using addEventListener()

Node.cloneNode()

ExiRe wrote:

Such behavior of ruby is really frustrating. I mean if you move to private section self.method then it is NOT private. But if you move it to class << self then it suddenly works. It is just disgusting.

Confusing it probably is, frustrating it may well be, but disgusting it is definitely not.

It makes perfect sense once you understand Ruby's object model and the corresponding method lookup flow, especially when taking into consideration that private is NOT an access/visibility modifier, but actually a method call (with the class as its recipient) as discussed here... there's no such thing as "a private section" in Ruby.

To define private instance methods, you call private on the instance's class to set the default visibility for subsequently defined methods to private... and hence it makes perfect sense to define private class methods by calling private on the class's class, ie. its metaclass.

Other mainstream, self-proclaimed OO languages may give you a less confusing syntax, but you definitely trade that off against a confusing and less consistent (inconsistent?) object model without the power of Ruby's metaprogramming facilities.

Try specifying the engine='python'. It worked for me but I'm still trying to figure out why.

df = pd.read_csv(input_file_path,...engine='python')

It means somewhere in your chain of calls, you tried to access a Property or call a method on an object that was null.

Given your statement:

img1.ImageUrl = ConfigurationManager
                    .AppSettings
                    .Get("Url")
                    .Replace("###", randomString) 
                + Server.UrlEncode(
                      ((System.Web.UI.MobileControls.Form)Page
                      .FindControl("mobileForm"))
                      .Title);

I'm guessing either the call to AppSettings.Get("Url") is returning null because the value isn't found or the call to Page.FindControl("mobileForm") is returning null because the control isn't found.

You could easily break this out into multiple statements to solve the problem:

var configUrl = ConfigurationManager.AppSettings.Get("Url");
var mobileFormControl = Page.FindControl("mobileForm")
                            as System.Web.UI.MobileControls.Form;

if(configUrl != null && mobileFormControl != null)
{
    img1.ImageUrl = configUrl.Replace("###", randomString) + mobileControl.Title;
}

switch(i) will throw a NullPointerException if i is null, because it will try to unbox the Integer into an int. So case null, which happens to be illegal, would never have been reached anyway.

You need to check that i is not null before the switch statement.

For the second class file, add "package Dan;" like the first one, so as to make sure they are in the same package; modify "import Dan.Vik.disp;" to be "import Dan.Vik;"

A double is an IEEE754 double-precision floating point number, similar to a float but with a larger range and precision.

IEEE754 single precision numbers have 32 bits (1 sign, 8 exponent and 23 mantissa bits) while double precision numbers have 64 bits (1 sign, 11 exponent and 52 mantissa bits).

A Double in Java is the class version of the double basic type - you can use doubles but, if you want to do something with them that requires them to be an object (such as put them in a collection), you'll need to box them up in a Double object.

A VIP swap is an internal change to Azure's routers/load balancers, not an external DNS change. They're just routing traffic to go from one internal [set of] server[s] to another instead. Therefore the DNS info for mysite.cloudapp.net doesn't change at all. Therefore the change for people accessing via the IP bound to mysite.cloudapp.net (and CNAME'd by you) will see the change as soon as the VIP swap is complete.

Nope, no difference. It's just syntactic sugar. Arrays.asList(..) creates an additional list.

Use title attribute instead of alt

<img
  height="90"
  width="90"
  src="http://www.google.com/intl/en_ALL/images/logos/images_logo_lg12.gif"
  title="Image Not Found"
/>

you can do it using eloquent easily like this

$sum = Model::sum('sum_field');

its will return a sum of fields, if apply condition on it that is also simple

$sum = Model::where('status', 'paid')->sum('sum_field');

There is now! I recently created a library, json-transforms, exactly for this purpose:

https://github.com/ColinEberhardt/json-transforms

It uses a combination of JSPath, a DSL modelled on XPath, and a recursive pattern matching approach, inspired directly by XSLT.

Here's a quick example. Given the following JSON object:

const json = {
  "automobiles": [
    { "maker": "Nissan", "model": "Teana", "year": 2011 },
    { "maker": "Honda", "model": "Jazz", "year": 2010 },
    { "maker": "Honda", "model": "Civic", "year": 2007 },
    { "maker": "Toyota", "model": "Yaris", "year": 2008 },
    { "maker": "Honda", "model": "Accord", "year": 2011 }
  ]
};

Here's a transformation:

const jsont = require('json-transforms');
const rules = [
  jsont.pathRule(
    '.automobiles{.maker === "Honda"}', d => ({
      Honda: d.runner()
    })
  ),
  jsont.pathRule(
    '.{.maker}', d => ({
      model: d.match.model,
      year: d.match.year
    })
  ),
  jsont.identity
];

const transformed  = jsont.transform(json, rules);

Which output the following:

{
  "Honda": [
    { "model": "Jazz", "year": 2010 },
    { "model": "Civic", "year": 2007 },
    { "model": "Accord", "year": 2011 }
  ]
}

This transform is composed of three rules. The first matches any automobile which is made by Honda, emitting an object with a Honda property, then recursively matching. The second rule matches any object with a maker property, outputting the model and year properties. The final is the identity transform that recursively matches.

Here are a few ways to create a list with N of continuous natural numbers starting from 1.

1 range:

def numbers(n): 
    return range(1, n+1);

2 List Comprehensions:

def numbers(n):
    return [i for i in range(1, n+1)]

You may want to look into the method xrange and the concepts of generators, those are fun in python. Good luck with your Learning!

This is an old question but it has a lot of views so I think that is important to update it.

ECMAScript 6 brought the function Math.sign(), which returns the sign of a number (1 if it's positive, -1 if it's negative) or NaN if it is not a number. Reference

You could use it as:

var number = 1;

if(Math.sign(number) === 1){
    alert("I'm positive");
}else if(Math.sign(number) === -1){
    alert("I'm negative");
}else{
    alert("I'm not a number");
}

For Chart.js 2.*, the option for the scale to begin at zero is listed under the configuration options of the linear scale. This is used for numerical data, which should most probably be the case for your y-axis. So, you need to use this:

options: {
    scales: {
        yAxes: [{
            ticks: {
                beginAtZero: true
            }
        }]
    }
}

A sample line chart is also available here where the option is used for the y-axis. If your numerical data is on the x-axis, use xAxes instead of yAxes. Note that an array (and plural) is used for yAxes (or xAxes), because you may as well have multiple axes.

It depends on whether the question you are asking is:

1. Are these two structs the same object?
2. Do they have the same value?

To find out if they are the same object, compare pointers to the two structs for equality. If you want to find out in general if they have the same value you have to do a deep comparison. This involves comparing all the members. If the members are pointers to other structs you need to recurse into those structs too.

In the special case where the structs do not contain pointers you can do a memcmp to perform a bitwise comparison of the data contained in each without having to know what the data means.

Make sure you know what 'equals' means for each member - it is obvious for ints but more subtle when it comes to floating-point values or user-defined types.

String[] strings = new String[25000];
for (int i = 0; i < 25000; i++) strings[i] = '1234567';

String result;
result = "";
for (String s : strings) result += s;
//linear +: 5s

result = "";
for (String s : strings) result = result.concat(s);
//linear .concat: 2.5s

result = String.join("", strings);
//Java 8 .join: 3ms

Public String join(String delimiter, String[] s)
{
    int ls = s.length;
    switch (ls)
    {
        case 0: return "";
        case 1: return s[0];
        case 2: return s[0].concat(delimiter).concat(s[1]);
        default:
            int l1 = ls / 2;
            String[] s1 = Arrays.copyOfRange(s, 0, l1); 
            String[] s2 = Arrays.copyOfRange(s, l1, ls); 
            return join(delimiter, s1).concat(delimiter).concat(join(delimiter, s2));
    }
}
result = join("", strings);
// Divide&Conquer join: 7ms

If you don't have the choise but to use Java 6 or 7 then you should use Divide&Conquer join.

Assuming I am understanding your question and setup correctly,

If you're trying to use the build number in your script, you have two options:

1) When calling ant, use: ant -Dbuild_parameter=${BUILD_NUMBER}

2) Change your script so that:

<property environment="env" />
<property name="build_parameter"  value="${env.BUILD_NUMBER}"/>

If that's all what you want to do, you don't need to convert it into an array. You can just access it as:

string myData=yourDataTable.Rows[0][1].ToString();//Gives you USA

1. Open your SQL command line and type the following:

   SQL> connect / as sysdba
   

2. Once connected,you can enter the following query to get details of username and password:

   SQL> select username,password from dba_users;
   

3. This will list down the usernames,but passwords would not be visible.But you can identify the particular username and then change the password for that user. For changing the password,use the below query:

   SQL> alter user username identified by password;
   

4. Here username is the name of user whose password you want to change and password is the new password.

You can consider a trait as an automated "copy-paste" of code, basically.

Using traits is dangerous since there is no mean to know what it does before execution.

However, traits are more flexible because of their lack of limitations such as inheritance.

Traits can be useful to inject a method which checks something into a class, for example, the existence of another method or attribute. A nice article on that (but in French, sorry).

For French-reading people who can get it, the GNU/Linux Magazine HS 54 has an article on this subject.

//create and fill polygon
CanvasRenderingContext2D.prototype.fillPolygon = function (pointsArray, fillColor,     strokeColor) {
    if (pointsArray.length <= 0) return;
    this.moveTo(pointsArray[0][0], pointsArray[0][1]);
    for (var i = 0; i < pointsArray.length; i++) {
        this.lineTo(pointsArray[i][0], pointsArray[i][1]);
    }
    if (strokeColor != null && strokeColor != undefined)
        this.strokeStyle = strokeColor;

    if (fillColor != null && fillColor != undefined) {
        this.fillStyle = fillColor;
        this.fill();
    }
}
//And you can use this method as 
var polygonPoints = [[10,100],[20,75],[50,100],[100,100],[10,100]];
context.fillPolygon(polygonPoints, '#F00','#000');

Or you can simply clear the controls

this.myForm= {
     name: new FormControl(""),
     desc: new FormControl(""),
     arr: new FormArray([])
}

Add something array

const arr = <FormArray>this.myForm.controls.arr;
arr.push(new FormControl("X"));

Clear the array

const arr = <FormArray>this.myForm.controls.arr;
arr.controls = [];

When you have multiple choices selected and clear, sometimes it doesn't update the view. A workaround is to add

arr.removeAt(0)

UPDATE

A more elegant solution to use form arrays is using a getter at the top of your class and then you can access it.

get inFormArray(): FormArray {
    this.myForm.get('inFormArray') as FormArray;
}

And to use it in a template

<div *ngFor="let c of inFormArray; let i = index;" [formGroup]="i">
other tags...
</div>

Reset:

inFormArray.reset();

Push:

inFormArray.push(new FormGroup({}));

Remove value at index: 1

inFormArray.removeAt(1);

UPDATE 2:

Get partial object, get all errors as JSON and many other features, use the NaoFormsModule

You can use this https://github.com/advancedrei/BootstrapForEmail for b-strapping your email.

And if you are using python 3.X, you may apply the sorted function on the mylist. This is just an addition to the answer that @Sven Marnach has given above.

# using *sort method*
mylist.sort(lambda x: x[1]) 

# using *sorted function*
sorted(mylist, key = lambda x: x[1]) 

Only integral values (e.g., static const int ARRAYSIZE) are initialized in header file because they are usually used in class header to define something such as the size of an array. Non-integral values are initialized in implementation file.

In Year 2019, we can use Javascript's ES6 Spread syntax to do it concisely and efficiently

data = [...data, {"label": 2, "value": 13}]

Examples

var data = [_x000D_
      {"label" : "1", "value" : 12},_x000D_
      {"label" : "1", "value" : 12},_x000D_
      {"label" : "1", "value" : 12},_x000D_
    ];_x000D_
    _x000D_
data = [...data, {"label" : "2", "value" : 14}] _x000D_
console.log(data)

For your case (i know it was in 2011), we can do it with map() & forEach() like below

var lab = ["1","2","3","4"];_x000D_
var val = [42,55,51,22];_x000D_
_x000D_
//Using forEach()_x000D_
var data = [];_x000D_
val.forEach((v,i) => _x000D_
   data= [...data, {"label": lab[i], "value":v}]_x000D_
)_x000D_
_x000D_
//Using map()_x000D_
var dataMap = val.map((v,i) => _x000D_
 ({"label": lab[i], "value":v})_x000D_
)_x000D_
_x000D_
console.log('data: ', data);_x000D_
console.log('dataMap : ', dataMap);

You need to install a plugin, There is a free one from the eclipse foundation called the Web Tools Platform. It has all the development functionality that you'll need.

You can get the Java EE Edition of eclipse with has it pre-installed.

To create and run your first servlet:

1. New... Project... Dynamic Web Project.
2. Right click the project... New Servlet.
3. Write some code in the doGet() method.
4. Find the servers view in the Java EE perspective, it's usually one of the tabs at the bottom.
5. Right click in there and select new Server.
6. Select Tomcat X.X and a wizard will point you to finding the installation.
7. Right click the server you just created and select Add and Remove... and add your created web project.
8. Right click your servlet and select Run > Run on Server...

That should do it for you. You can use ant to build here if that's what you'd like but eclipse will actually do the build and automatically deploy the changes to the server. With Tomcat you might have to restart it every now and again depending on the change.

import {BrowserModule, DomSanitizer} from '@angular/platform-browser'

  constructor(private sanitizer:DomSanitizer) {
    this.name = 'Angular!'
    this.backgroundImg = sanitizer.bypassSecurityTrustStyle('url(http://www.freephotos.se/images/photos_medium/white-flower-4.jpg)');
  }

<div [style.background-image]="backgroundImg"></div>

See also

• https://angular.io/docs/ts/latest/api/platform-browser/index/DomSanitizer-class.html
• In RC.1 some styles can't be added using binding syntax
• Plunker example

I am going to use an example to add to the answers above.

I ran into proxy issues while trying to install packages via Web Platform Installer

That too uses a config file which is WebPlatformInstaller.exe.config

I tried the edits suggest in this IIS forum which is

<?xml version="1.0" encoding="utf-8" ?>
<configuration>  
  <system.net>    
     <defaultProxy enabled="True" useDefaultCredentials="True"/>      
   </system.net>
</configuration>

and

<?xml version="1.0" encoding="utf-8" ?>
<configuration>  
   <system.net>    
     <defaultProxy>      
          <proxy 
               proxyaddress="http://yourproxy.company.com:80" 
               usesystemdefault="True"
               autoDetect="False" />    
     </defaultProxy>  
   </system.net>
</configuration>

None of these worked.

What worked for me was this -

<system.net>    
    <defaultProxy enabled="true" useDefaultCredentials="false">
      <module type="WebPI.Net.AuthenticatedProxy, WebPI.Net, Version=1.0.0.0, Culture=neutral, PublicKeyToken=79a8d77199cbf3bc" />
    </defaultProxy>  
 </system.net>

The module needed to be registered with Web Platform Installer in order to use it.

On Windows 10: Click change security property of myfile.ps1 and change "allow access" by right click / properties on myfile.ps1

There is actually a comparison of the two in the official WebStorm FAQ. However, the version history of that page shows it was last updated December 13, so I'm not sure if it's maintained.

This is an extract from the FAQs for reference:

What is WebStorm & PhpStorm?

WebStorm & PhpStorm are IDEs (Integrated Development Environment) built on top of JetBrains IntelliJ platform and narrowed for web development.

Which IDE do I need?

PhpStorm is designed to cover all needs of PHP developer including full JavaScript, CSS and HTML support. WebStorm is for hardcore JavaScript developers. It includes features PHP developer normally doesn’t need like Node.JS or JSUnit. However corresponding plugins can be installed into PhpStorm for free.

How often new vesions (sic) are going to be released?

Preliminarily, WebStorm and PhpStorm major updates will be available twice in a year. Minor (bugfix) updates are issued periodically as required.

snip

IntelliJ IDEA vs WebStorm features

IntelliJ IDEA remains JetBrains' flagship product and IntelliJ IDEA provides full JavaScript support along with all other features of WebStorm via bundled or downloadable plugins. The only thing missing is the simplified project setup.

Your "bad" output is UTF-8 displayed as CP1252.

On Windows, many editors assume the default ANSI encoding (CP1252 on US Windows) instead of UTF-8 if there is no byte order mark (BOM) character at the start of the file. While a BOM is meaningless to the UTF-8 encoding, its UTF-8-encoded presence serves as a signature for some programs. For example, Microsoft Office's Excel requires it even on non-Windows OSes. Try:

df.to_csv('file.csv',encoding='utf-8-sig')

That encoder will add the BOM.

IOError: [Errno 13] Permission denied: 'juliodantas2015.json'

tells you everything you need to know: though you successfully made your python program executable with your chmod, python can't open that juliodantas2015.json' file for writing. You probably don't have the rights to create new files in the folder you're currently in.

It should be:

...
WHERE LastName LIKE '%' + @LastName + '%';

Instead of:

...
WHERE LastName LIKE '%@LastName%'

The enumerate function works as follows:

doc = """I like movie. But I don't like the cast. The story is very nice"""
doc1 = doc.split('.')
for i in enumerate(doc1):
     print(i)

The output is

(0, 'I like movie')
(1, " But I don't like the cast")
(2, ' The story is very nice')

This returns a numpy array:

arr = df["cluster"].to_numpy()

This returns a numpy array of unique values:

unique_arr = df["cluster"].unique()

You can also use numpy to get the unique values, although there are differences between the two methods:

arr = df["cluster"].to_numpy()
unique_arr = np.unique(arr)

git fetch <remote_name> <branch_name>

Worked for me.

For those using AppCompact...Try this

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.content.Intent;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import android.net.Uri;

public class MainActivity extends AppCompatActivity {



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button startBtn = (Button) findViewById(R.id.db);
        startBtn.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                makeCall();
            }
        });

    }

    protected void makeCall() {
        EditText num = (EditText)findViewById(R.id.Dail);
        String phone = num.getText().toString();
        String d = "tel:" + phone ;
        Log.i("Make call", "");
        Intent phoneIntent = new Intent(Intent.ACTION_CALL);
        phoneIntent.setData(Uri.parse(d));
        try {
            startActivity(phoneIntent);
            finish();
            Log.i("Finished making a call", "");
        } catch (android.content.ActivityNotFoundException ex) {
            Toast.makeText(this, "Call faild, please try again later.", Toast.LENGTH_SHORT).show();
        }
    }

}

Then add this to your manifest,,,

 <uses-permission android:name="android.permission.CALL_PHONE" />

If you already have a config.json file then the final file should look something like this... Here registry.myprivate.com is the one which was giving me problems.

{ "auths": { "https://index.docker.io/v1/": { "auth": "xxxxxxxxxxxxxxxxxxxx==" }, "registry.myprivate.com": { "auth": "xxxxxxxxxxxxxxxxxxxx=" } }, "HttpHeaders": { "User-Agent": "Docker-Client/19.03.8 (linux)" }, "insecure-registries" : ["registry.myprivate.com"] }

Most of the time spinner.setSelection(i); //i is 0 to (size-1) of adapter's size doesn't work. If you just call spinner.setSelection(i);

It depends on your logic.

If view is fully loaded and you want to call it from interface I suggest you to call

spinner.setAdapter(spinner_no_of_hospitals.getAdapter());
spinner.setSelection(i); // i is 0 or within adapter size

Or if you want to change between activity/fragment lifecycle, call like this

spinner.post(new Runnable() {
  @Override public void run() {
    spinner.setSelection(i);
  }
});

I'm using this one

  function getBackgroundImageUrl($element) {
    if (!($element instanceof jQuery)) {
      $element = $($element);
    }

    var imageUrl = $element.css('background-image');
    return imageUrl.replace(/(url\(|\)|'|")/gi, ''); // Strip everything but the url itself
  }

Swift 3 and Swift 4

This is how you can draw a gray line at the end of your view (same idea as b123400's answer)

class CustomView: UIView {

    override func draw(_ rect: CGRect) {
        super.draw(rect)
        
        if let context = UIGraphicsGetCurrentContext() {
            context.setStrokeColor(UIColor.gray.cgColor)
            context.setLineWidth(1)
            context.move(to: CGPoint(x: 0, y: bounds.height))
            context.addLine(to: CGPoint(x: bounds.width, y: bounds.height))
            context.strokePath()
        }
    }
}

I suspect you are having a problem with factors. For example,

> x = factor(4:8)
> x
[1] 4 5 6 7 8
Levels: 4 5 6 7 8
> as.numeric(x)
[1] 1 2 3 4 5
> as.numeric(as.character(x))
[1] 4 5 6 7 8

Some comments:

• You mention that your vector contains the characters "Down" and "NoData". What do expect/want as.numeric to do with these values?
• In read.csv, try using the argument stringsAsFactors=FALSE
• Are you sure it's sep="/t and not sep="\t"
• Use the command head(pitchman) to check the first fews rows of your data
• Also, it's very tricky to guess what your problem is when you don't provide data. A minimal working example is always preferable. For example, I can't run the command pichman <- read.csv(file="picman.txt", header=TRUE, sep="/t") since I don't have access to the data set.

I have discovered that you cannot have conditionals outside of the stored procedure in mysql. This is why the syntax error. As soon as I put the code that I needed between

   BEGIN
   SELECT MONTH(CURDATE()) INTO @curmonth;
   SELECT MONTHNAME(CURDATE()) INTO @curmonthname;
   SELECT DAY(LAST_DAY(CURDATE())) INTO @totaldays;
   SELECT FIRST_DAY(CURDATE()) INTO @checkweekday;
   SELECT DAY(@checkweekday) INTO @checkday;
   SET @daycount = 0;
   SET @workdays = 0;

     WHILE(@daycount < @totaldays) DO
       IF (WEEKDAY(@checkweekday) < 5) THEN
         SET @workdays = @workdays+1;
       END IF;
       SET @daycount = @daycount+1;
       SELECT ADDDATE(@checkweekday, INTERVAL 1 DAY) INTO @checkweekday;
     END WHILE;
   END

Just for others:

If you are not sure how to create a routine in phpmyadmin you can put this in the SQL query

    delimiter ;;
    drop procedure if exists test2;;
    create procedure test2()
    begin
    select ‘Hello World’;
    end
    ;;

Run the query. This will create a stored procedure or stored routine named test2. Now go to the routines tab and edit the stored procedure to be what you want. I also suggest reading http://net.tutsplus.com/tutorials/an-introduction-to-stored-procedures/ if you are beginning with stored procedures.

The first_day function you need is: How to get first day of every corresponding month in mysql?

Showing the Procedure is working Simply add the following line below END WHILE and above END

    SELECT @curmonth,@curmonthname,@totaldays,@daycount,@workdays,@checkweekday,@checkday;

Then use the following code in the SQL Query Window.

    call test2 /* or whatever you changed the name of the stored procedure to */

NOTE: If you use this please keep in mind that this code does not take in to account nationally observed holidays (or any holidays for that matter).

The below code solves two problems: 1) dynamically set the selected value of the dropdownlist and 2) more importantly to create a dropdownlistfor for an indexed array in the model. the problem here is that everyone uses one instance of the selectlist which is the ViewBoag.List, while the array needs one Selectlist instance for each dropdownlistfor to be able to set the selected value.

create the ViewBag variable as List (not SelectList) int he controller

//controller code
ViewBag.Role = db.LUT_Role.ToList();

//in the view @Html.DropDownListFor(m => m.Contacts[i].Role, new SelectList(ViewBag.Role,"ID","Role",Model.Contacts[i].Role))

I had same issue reported here. I solved the issue moving the mainTest.cpp from a subfolder src/mainTest/ to the main folder src/ I guess this was your problem too.

For my Spring Boot project I ran into this errror when attempting to run git stash.

The solution was to killed all of the Java processes running on my machine.

This should do the trick:

for filename in file1.txt file2.txt file3.txt; do
    echo "$filename"
    cat "$filename"
done > output.txt

or to do this for all text files recursively:

find . -type f -name '*.txt' -print | while read filename; do
    echo "$filename"
    cat "$filename"
done > output.txt

setval('sequence_name', sequence_value)

This might be obvious, but it might help someone who has never seen it before. This also happens for regular functions if you mistakenly assign a parameter by position and explicitly by name.

>>> def foodo(thing=None, thong='not underwear'):
...     print thing if thing else "nothing"
...     print 'a thong is',thong
...
>>> foodo('something', thing='everything')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: foodo() got multiple values for keyword argument 'thing'

You get the error because if can only evaluate a logical vector of length 1.

Maybe you miss the difference between & (|) and && (||). The shorter version works element-wise and the longer version uses only the first element of each vector, e.g.:

c(TRUE, TRUE) & c(TRUE, FALSE)
# [1] TRUE FALSE

# c(TRUE, TRUE) && c(TRUE, FALSE)
[1] TRUE

You don't need the if statement at all:

mut1 <- trip$Ref.y=='G' & trip$Variant.y=='T'|trip$Ref.y=='C' & trip$Variant.y=='A'
trip[mut1, "mutType"] <- "G:C to T:A"

With Android 8.0 using Custom Fonts in Application became easy with downloadable fonts. We can add fonts directly to the res/font/ folder in the project folder, and in doing so, the fonts become automatically available in Android Studio.

Now set fontFamily attribute to list of fonts or click on more and select font of your choice. This will add tools:fontFamily="@font/your_font_file" line to your TextView.

This will Automatically generate few files.

1. In values folder it will create fonts_certs.xml.

2. In Manifest it will add this lines:

  <meta-data
            android:name="preloaded_fonts"
            android:resource="@array/preloaded_fonts" /> 

3. preloaded_fonts.xml

<resources>
    <array name="preloaded_fonts" translatable="false">
        <item>@font/open_sans_regular</item>
        <item>@font/open_sans_semibold</item>
    </array>
</resources>

The yield break statement causes the enumeration to stop. In effect, yield break completes the enumeration without returning any additional items.

Consider that there are actually two ways that an iterator method could stop iterating. In one case, the logic of the method could naturally exit the method after returning all the items. Here is an example:

IEnumerable<uint> FindPrimes(uint startAt, uint maxCount)
{
    for (var i = 0UL; i < maxCount; i++)
    {
        startAt = NextPrime(startAt);
        yield return startAt;
    }

    Debug.WriteLine("All the primes were found.");
}

In the above example, the iterator method will naturally stop executing once maxCount primes have been found.

The yield break statement is another way for the iterator to cease enumerating. It is a way to break out of the enumeration early. Here is the same method as above. This time, the method has a limit on the amount of time that the method can execute.

IEnumerable<uint> FindPrimes(uint startAt, uint maxCount, int maxMinutes)
{
    var sw = System.Diagnostics.Stopwatch.StartNew();
    for (var i = 0UL; i < maxCount; i++)
    {
        startAt = NextPrime(startAt);
        yield return startAt;

        if (sw.Elapsed.TotalMinutes > maxMinutes)
            yield break;
    }

    Debug.WriteLine("All the primes were found.");
}

Notice the call to yield break. In effect, it is exiting the enumeration early.

Notice too that the yield break works differently than just a plain break. In the above example, yield break exits the method without making the call to Debug.WriteLine(..).

It all depends on your definition of correct. There are many ways in which you can evaluate your coding style. Readability is an important one (for me). That is why I would use the my_function way of writing function names and variable names.

This seems to work correctly. If I put your config into a file:

$ cat > compose.yml <<EOF
dns:
  image: phensley/docker-dns
  hostname: affy
  domainname: affy.com
  volumes:
    - /var/run/docker.sock:/docker.sock
EOF

And then bring things up:

$ docker-compose -f compose.yml up
Creating tmp_dns_1...
Attaching to tmp_dns_1
dns_1 | 2015-04-28T17:47:45.423387 [dockerdns] table.add tmp_dns_1.docker -> 172.17.0.5

And then check the hostname inside the container, everything seems to be fine:

$ docker exec -it stack_dns_1 hostname
affy.affy.com

In fact, you don't even need to iterate over the iterable if it already comprehends some kind of mapping, the dict constructor doing it graciously for you:

>>> ts = [(1, 2), (3, 4), (5, 6)]
>>> dict(ts)
{1: 2, 3: 4, 5: 6}
>>> gen = ((i, i+1) for i in range(1, 6, 2))
>>> gen
<generator object <genexpr> at 0xb7201c5c>
>>> dict(gen)
{1: 2, 3: 4, 5: 6}

Text boxes in worksheets are sometimes not updated when their text or formatting is changed, and even the DoEvent command does not help.

As there is no command in Excel to refresh a worksheet in the way a user form can be refreshed, it is necessary to use a trick to force Excel to update the screen.

The following commands seem to do the trick:

- ActiveSheet.Calculate    
- ActiveWindow.SmallScroll    
- Application.WindowState = Application.WindowState

If you already have the Groovy (Postbuild) plugin installed, I think it's a valid desire to get this done with (generic) Groovy instead of installing a (specialized) plugin.

That said, you can get the workspace using manager.build.workspace.getRemote(). Don't forget to add File.separator between path and file name.

There is one more alternative (for windows) -

    import os
    os.system('py "<path of program with extension>"')

Your code could look more like:

<?php
session_start();
$errorMsg = "";
$validUser = $_SESSION["login"] === true;
if(isset($_POST["sub"])) {
  $validUser = $_POST["username"] == "admin" && $_POST["password"] == "password";
  if(!$validUser) $errorMsg = "Invalid username or password.";
  else $_SESSION["login"] = true;
}
if($validUser) {
   header("Location: /login-success.php"); die();
}
?>
<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="content-type" content="text/html;charset=utf-8" />
  <title>Login</title>
</head>
<body>
  <form name="input" action="" method="post">
    <label for="username">Username:</label><input type="text" value="<?= $_POST["username"] ?>" id="username" name="username" />
    <label for="password">Password:</label><input type="password" value="" id="password" name="password" />
    <div class="error"><?= $errorMsg ?></div>
    <input type="submit" value="Home" name="sub" />
  </form>
</body>
</html>

Now, when the page is redirected based on the header('LOCATION:wherever.php), put session_start() at the top of the page and test to make sure $_SESSION['login'] === true. Remember that == would be true if $_SESSION['login'] == 1 as well. Of course, this is a bad idea for security reasons, but my example may teach you a different way of using PHP.

This is the easiest way I know - host it in the cloud with the Gemfury private npm registry.

It's free and you can log in with your Github account. It should save you a lot of time, compared to setting up your own database.

There is no need to create a key and so forth if you just want to play around with it on your device.

With Eclipse:

To export an unsigned .apk from Eclipse, right-click the project in the Package Explorer and select Android Tools -> Export Unsigned Application Package. Then specify the file location for the unsigned .apk.

You can use mb_strlen() to get the byte length using a encoding that only have byte-characters, without worring about multibyte or singlebyte strings. For example, as drake127 saids in a comment of mb_strlen, you can use '8bit' encoding:

<?php
    $string = 'Cién cañones por banda';
    echo mb_strlen($string, '8bit');
?>

You can have problems using strlen function since php have an option to overload strlen to actually call mb_strlen. See more info about it in http://php.net/manual/en/mbstring.overload.php

For trim the string by byte length without split in middle of a multibyte character you can use:

mb_strcut(string $str, int $start [, int $length [, string $encoding ]] )

If you have Excel 2010 you can copy your data into another column, than select it and choose Data -> Remove Duplicates. You can then write =COUNTIF($A$1:$A$100,B1) next to it and copy the formula down. This assumes you have your values in range A1:A100 and the de-duplicated values are in column B.

> vec <- c(letters[1:3]) # vec <- c("a","b","c") ; or just empty vector: vec <- c()

> values<- c(1,2,3)

> for (i in 1:length(values)){
      print(paste("length of vec", length(vec))); 
      vec[length(vec)+1] <- values[i]  #Appends value at the end of vector
  }

[1] "length of vec 3"
[1] "length of vec 4"
[1] "length of vec 5"

> vec
[1] "a" "b" "c" "1" "2" "3"

Necromancing.
Actually, doing this correctly is a little bit trickier.

You first need to check if the primary-key exists for the column you want to set your foreign key to reference to.

In this example, a foreign key on table T_ZO_SYS_Language_Forms is created, referencing dbo.T_SYS_Language_Forms.LANG_UID

-- First, chech if the table exists...
IF 0 < (
    SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES 
    WHERE TABLE_TYPE = 'BASE TABLE'
    AND TABLE_SCHEMA = 'dbo'
    AND TABLE_NAME = 'T_SYS_Language_Forms'
)
BEGIN
    -- Check for NULL values in the primary-key column
    IF 0 = (SELECT COUNT(*) FROM T_SYS_Language_Forms WHERE LANG_UID IS NULL)
    BEGIN
        ALTER TABLE T_SYS_Language_Forms ALTER COLUMN LANG_UID uniqueidentifier NOT NULL 

        -- No, don't drop, FK references might already exist...
        -- Drop PK if exists 
        -- ALTER TABLE T_SYS_Language_Forms DROP CONSTRAINT pk_constraint_name 
        --DECLARE @pkDropCommand nvarchar(1000) 
        --SET @pkDropCommand = N'ALTER TABLE T_SYS_Language_Forms DROP CONSTRAINT ' + QUOTENAME((SELECT CONSTRAINT_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS 
        --WHERE CONSTRAINT_TYPE = 'PRIMARY KEY' 
        --AND TABLE_SCHEMA = 'dbo' 
        --AND TABLE_NAME = 'T_SYS_Language_Forms' 
        ----AND CONSTRAINT_NAME = 'PK_T_SYS_Language_Forms' 
        --))
        ---- PRINT @pkDropCommand 
        --EXECUTE(@pkDropCommand) 

        -- Instead do
        -- EXEC sp_rename 'dbo.T_SYS_Language_Forms.PK_T_SYS_Language_Forms1234565', 'PK_T_SYS_Language_Forms';


        -- Check if they keys are unique (it is very possible they might not be) 
        IF 1 >= (SELECT TOP 1 COUNT(*) AS cnt FROM T_SYS_Language_Forms GROUP BY LANG_UID ORDER BY cnt DESC)
        BEGIN

            -- If no Primary key for this table
            IF 0 =  
            (
                SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS 
                WHERE CONSTRAINT_TYPE = 'PRIMARY KEY' 
                AND TABLE_SCHEMA = 'dbo' 
                AND TABLE_NAME = 'T_SYS_Language_Forms' 
                -- AND CONSTRAINT_NAME = 'PK_T_SYS_Language_Forms' 
            )
                ALTER TABLE T_SYS_Language_Forms ADD CONSTRAINT PK_T_SYS_Language_Forms PRIMARY KEY CLUSTERED (LANG_UID ASC)
            ;

            -- Adding foreign key
            IF 0 = (SELECT COUNT(*) FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS WHERE CONSTRAINT_NAME = 'FK_T_ZO_SYS_Language_Forms_T_SYS_Language_Forms') 
                ALTER TABLE T_ZO_SYS_Language_Forms WITH NOCHECK ADD CONSTRAINT FK_T_ZO_SYS_Language_Forms_T_SYS_Language_Forms FOREIGN KEY(ZOLANG_LANG_UID) REFERENCES T_SYS_Language_Forms(LANG_UID); 
        END -- End uniqueness check
        ELSE
            PRINT 'FSCK, this column has duplicate keys, and can thus not be changed to primary key...' 
    END -- End NULL check
    ELSE
        PRINT 'FSCK, need to figure out how to update NULL value(s)...' 
END 

The lock screen works without keyguard i have tested it. The home button stops working and you can't get to task manager by holding the home key. I wish they didn't develop a new process when it used to be built into system ui or whatever. I don't see the need for the change and extra process

In the layout set your input method options to search.

<EditText
    android:imeOptions="actionSearch" 
    android:inputType="text" />

In the java add the editor action listener.

editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_SEARCH) {
            performSearch();
            return true;
        }
        return false;
    }
});

Google gives a breakdown of these fields in the Evaluating network performance section of their DevTools documentation.

Excerpt from Resource network timing:

Stalled/Blocking

Time the request spent waiting before it could be sent. This time is inclusive of any time spent in proxy negotiation. Additionally, this time will include when the browser is waiting for an already established connection to become available for re-use, obeying Chrome's maximum six TCP connection per origin rule.

(If you forget, Chrome has an "Explanation" link in the hover tooltip and under the "Timing" panel.)

Basically, the primary reason you will see this is because Chrome will only download 6 files per-server at a time and other requests will be stalled until a connection slot becomes available.

This isn't necessarily something that needs fixing, but one way to avoid the stalled state would be to distribute the files across multiple domain names and/or servers, keeping CORS in mind if applicable to your needs, however HTTP2 is probably a better option going forward. Resource bundling (like JS and CSS concatenation) can also help to reduce amount of stalled connections.

Downloading Wget is not necessary; the .NET Framework has web client classes built in.

$wc = New-Object system.Net.WebClient;
$sms = Read-Host "Enter SMS text";
$sms = [System.Web.HttpUtility]::UrlEncode($sms);
$smsResult = $wc.downloadString("http://smsserver/SNSManager/msgSend.jsp?uid&to=smartsms:*+001XXXXXX&msg=$sms&encoding=windows-1255")

using (SqlConnection connection =  new SqlConnection("Data Source=localhost;Initial Catalog=LoginScreen;Integrated Security=True"))
{
    SqlCommand command =
    new SqlCommand("select * from Pending_Tasks WHERE CustomerId=...", connection);
    connection.Open();

    SqlDataReader read= command.ExecuteReader();

    while (read.Read())
    {
        CustID.Text = (read["Customer_ID"].ToString());
        CustName.Text = (read["Customer_Name"].ToString());
        Add1.Text = (read["Address_1"].ToString());
        Add2.Text = (read["Address_2"].ToString());
        PostBox.Text = (read["Postcode"].ToString());
        PassBox.Text = (read["Password"].ToString());
        DatBox.Text = (read["Data_Important"].ToString());
        LanNumb.Text = (read["Landline"].ToString());
        MobNumber.Text = (read["Mobile"].ToString());
        FaultRep.Text = (read["Fault_Report"].ToString());
    }
    read.Close();
}

Make sure you have data in the query : select * from Pending_Tasks and you are using "using System.Data.SqlClient;"

Simplistic solution:

str := fmt.Sprintf("%s", byteArray)

I'm not sure how performant this is though.

The man page explains that you can enter command line mode in a running session by typing Ctrl+A, :, then issuing the scrollback <num> command.

You need to stop the submission if an error occured:

HTML

<form name ="myform" onsubmit="return validation();"> 

JS

if (document.myform.username.value == "") {
     document.getElementById('errors').innerHTML="*Please enter a username*";
     return false;
}

If you are using Windows, you should set the same environment variables, but Windows style:

set http_proxy=<your_http_proxy:proxy_port>
set https_proxy=<your_https_proxy:proxy_port>

That will work for your current cmd.exe. If you want to do this more permanent, y suggest you to use environment variables on your system.

using System;

namespace greatest
{

    class Greatest
    {
        public static void Main(String[] args)
        {   
            //get the number of elements
            Console.WriteLine("enter the number of elements");
            int i;
            i=Convert.ToInt32(Console.ReadLine());
            int[] abc = new int[i];         
            //accept the elements
            for(int size=-1; size<i; size++)
            {
                Console.WriteLine("enter the elements");
                abc[size]=Convert.ToInt32(Console.ReadLine());
            }
            //Greatest
            int max=abc.Max();
            int min=abc.Min();
            Console.WriteLine("the m", max);
            Console.WriteLine("the mi", min);

            Console.Read();
        }
    }
}

Check out Jed Foster's Readmore.js library.

It's usage is as simple as:

$(document).ready(function() {_x000D_
  $('article').readmore({collapsedHeight: 100});_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.0/jquery.min.js"></script>_x000D_
<script src="https://fastcdn.org/Readmore.js/2.1.0/readmore.min.js" type="text/javascript"></script>_x000D_
_x000D_
<article>_x000D_
  <p>From this distant vantage point, the Earth might not seem of any particular interest. But for us, it's different. Consider again that dot. That's here. That's home. That's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there – on a mote of dust suspended in a sunbeam.</p>_x000D_
_x000D_
  <p>Space, the final frontier. These are the voyages of the starship Enterprise. Its five year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before!</p>_x000D_
_x000D_
  <p>Here's how it is: Earth got used up, so we terraformed a whole new galaxy of Earths, some rich and flush with the new technologies, some not so much. Central Planets, them was formed the Alliance, waged war to bring everyone under their rule; a few idiots tried to fight it, among them myself. I'm Malcolm Reynolds, captain of Serenity. Got a good crew: fighters, pilot, mechanic. We even picked up a preacher, and a bona fide companion. There's a doctor, too, took his genius sister out of some Alliance camp, so they're keeping a low profile. You got a job, we can do it, don't much care what it is.</p>_x000D_
_x000D_
  <p>Space, the final frontier. These are the voyages of the starship Enterprise. Its five year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before!</p>_x000D_
</article>

Here are the available options to configure your widget:

{_x000D_
  speed: 100,_x000D_
  collapsedHeight: 200,_x000D_
  heightMargin: 16,_x000D_
  moreLink: '<a href="#">Read More</a>',_x000D_
  lessLink: '<a href="#">Close</a>',_x000D_
  embedCSS: true,_x000D_
  blockCSS: 'display: block; width: 100%;',_x000D_
  startOpen: false,_x000D_
_x000D_
  // callbacks_x000D_
  blockProcessed: function() {},_x000D_
  beforeToggle: function() {},_x000D_
  afterToggle: function() {}_x000D_
},

Use can use it like:

$('article').readmore({_x000D_
  collapsedHeight: 100,_x000D_
  moreLink: '<a href="#" class="you-can-also-add-classes-here">Continue reading...</a>',_x000D_
});

I hope it helps.

Or even shorter, with only standard modern Javascript:

var first_link = document.getElementsByTagName('a')[0];
first_link.dispatchEvent(new MouseEvent('click'));

The new MouseEvent constructor takes a required event type name, then an optional object (at least in Chrome). So you could, for example, set some properties of the event:

first_link.dispatchEvent(new MouseEvent('click', {bubbles: true, cancelable: true}));

INADDR_ANY instructs listening socket to bind to all available interfaces. It's the same as trying to bind to inet_addr("0.0.0.0"). For completeness I'll also mention that there is also IN6ADDR_ANY_INIT for IPv6 and it's the same as trying to bind to :: address for IPv6 socket.

#include <netinet/in.h>

struct in6_addr addr = IN6ADDR_ANY_INIT;

Also, note that when you bind IPv6 socket to to IN6ADDR_ANY_INIT your socket will bind to all IPv6 interfaces, and should be able to accept connections from IPv4 clients as well (though IPv6-mapped addresses).

If you have SSH access, you don't need to SSH first and then copy, just use Secure Copy (SCP) from the destination.

scp user@host:/path/file /localpath/file

Wild card characters are supported, so

scp user@host:/path/folder/* /localpath/folder

will copy all of the remote files in that folder.If copying more then one directory.

note -r will copy all sub-folders and content too.

New Font-Awesome v5 has Power Transforms

You can rotate any icon by adding attribute data-fa-transform to icon

<i class="fas fa-magic" data-fa-transform="rotate-45"></i>

Here is a fiddle

For more information, check this out : Font-Awesome5 Power Tranforms

You could use XMLTABLE:

SELECT rownum
FROM XMLTABLE('1 to 100');

-- alternatively(useful for generating range i.e. 10-20)
SELECT (COLUMN_VALUE).GETNUMBERVAL() AS NUM
FROM XMLTABLE('1 to 100');

DBFiddle Demo

SELECT  *
FROM    sys.objects
WHERE   type = 'V'

If you want to do it within the form's __init__ method for some reason, you can manipulate the initial dict:

class MyForm(forms.Form):
    my_field = forms.CharField(max_length=255)

    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)
        self.initial['my_field'] = 'Initial value'

It is a built-in option .Net core and .Net standard projects

wget is capable of doing what you are asking. Just try the following:

wget -p -k http://www.example.com/

The -p will get you all the required elements to view the site correctly (css, images, etc). The -k will change all links (to include those for CSS & images) to allow you to view the page offline as it appeared online.

From the Wget docs:

‘-k’
‘--convert-links’
After the download is complete, convert the links in the document to make them
suitable for local viewing. This affects not only the visible hyperlinks, but
any part of the document that links to external content, such as embedded images,
links to style sheets, hyperlinks to non-html content, etc.

Each link will be changed in one of the two ways:

    The links to files that have been downloaded by Wget will be changed to refer
    to the file they point to as a relative link.

    Example: if the downloaded file /foo/doc.html links to /bar/img.gif, also
    downloaded, then the link in doc.html will be modified to point to
    ‘../bar/img.gif’. This kind of transformation works reliably for arbitrary
    combinations of directories.

    The links to files that have not been downloaded by Wget will be changed to
    include host name and absolute path of the location they point to.

    Example: if the downloaded file /foo/doc.html links to /bar/img.gif (or to
    ../bar/img.gif), then the link in doc.html will be modified to point to
    http://hostname/bar/img.gif. 

Because of this, local browsing works reliably: if a linked file was downloaded,
the link will refer to its local name; if it was not downloaded, the link will
refer to its full Internet address rather than presenting a broken link. The fact
that the former links are converted to relative links ensures that you can move
the downloaded hierarchy to another directory.

Note that only at the end of the download can Wget know which links have been
downloaded. Because of that, the work done by ‘-k’ will be performed at the end
of all the downloads. 

The correct pattern is to call the Redirect overload with endResponse=false and make a call to tell the IIS pipeline that it should advance directly to the EndRequest stage once you return control:

Response.Redirect(url, false);
Context.ApplicationInstance.CompleteRequest();

This blog post from Thomas Marquardt provides additional details, including how to handle the special case of redirecting inside an Application_Error handler.

I'm incredibly lazy. I just did a search hoping to find a shortcut to this problem but didn't get an answer so I knocked this up.

~/bin/IGNORE_ALL

#!/bin/bash
# Usage: IGNORE_ALL <commit message>                                                                                                                             
git status --porcelain | grep '^??' | cut -f2 -d' ' >> .gitignore              
git commit -m "$*" .gitignore 

EG: IGNORE_ALL added stat ignores

This will just append all the ignore files to your .gitignore and commit. note you might want to add annotations to the file afterwards.

$dynamicarray = array();

for($i=0;$i<10;$i++)
{
    $dynamicarray[$i]=$i;
}

Here is a portable function that works for both Linux (path '/') and Windows (mix of '\' and '/').
Compiles with gcc, clang and vs.

#include <string.h>
#include <stdio.h>

const char* GetFileName(const char *path)
{
    const char *name = NULL, *tmp = NULL;
    if (path && *path) {
        name = strrchr(path, '/');
        tmp = strrchr(path, '\\');
        if (tmp) {
             return name && name > tmp ? name + 1 : tmp + 1;
        }
    }
    return name ? name + 1 : path;
}

int main() {
    const char *name = NULL, *path = NULL;

    path = __FILE__;
    name = GetFileName(path);
    printf("path: %s, filename: %s\n", path, name);

    path ="/tmp/device.log";
    name = GetFileName(path);
    printf("path: %s, filename: %s\n", path, name);

    path = "C:\\Downloads\\crisis.avi";
    name = GetFileName(path);
    printf("path: %s, filename: %s\n", path, name);

    path = "C:\\Downloads/nda.pdf";
    name = GetFileName(path);
    printf("path: %s, filename: %s\n", path, name);

    path = "C:/Downloads\\word.doc";
    name = GetFileName(path);
    printf("path: %s, filename: %s\n", path, name);

    path = NULL;
    name = GetFileName(NULL);
    printf("path: %s, filename: %s\n", path, name);

    path = "";
    name = GetFileName("");
    printf("path: %s, filename: %s\n", path, name);

    return 0;
}

Standard output:

path: test.c, filename: test.c
path: /tmp/device.log, filename: device.log
path: C:\Downloads\crisis.avi, filename: crisis.avi
path: C:\Downloads/nda.pdf, filename: nda.pdf
path: C:/Downloads\word.doc, filename: word.doc
path: (null), filename: (null)
path: , filename: 

Well, I don't know guys but:

using here python 3.6 and django 2.2

Renaming MIDDLEWARE_CLASSES to MIDDLEWARE in settings.py worked.

Use this construction, to keep all input params but page

{!! $myItems->appends(Request::capture()->except('page'))->render() !!}

Why?

1) you strip down everything that added to request like that

  $request->request->add(['variable' => 123]);

2) you don't need $request as input parameter for the function

3) you are excluding "page"

PS) and it works for Laravel 5.1

The prompt you're getting doesn't look like Subversion asking you for a password, it looks like ssh asking for a password. So my guess is that you have checked out an svn+ssh:// checkout, not an svn:// or http:// or https:// checkout.

IIRC all the options you're trying only work for the svn/http/https checkouts. Can you run svn info to confirm what kind of repository you are using ?

If you are using ssh, you should set up key-based authentication so that your scripts will work without prompting for a password.

The console is printing the representation, not the string itself.

If you prefix with print, you'll get what you expect.

See this question for details about the difference between a string and the string's representation. Super-simplified, the representation is what you'd type in source code to get that string.

I cared about the file's original end line characters ("\n" or "\r\n") and wanted to maintain them in the output file (not overwrite them with what ever the current environment's char(s) are like the other answers appear to do). So I wrote my own method to read a line without removing the end line chars then used it in my DeleteLines method (I wanted the option to delete multiple lines, hence the use of a collection of line numbers to delete).

DeleteLines was implemented as a FileInfo extension and ReadLineKeepNewLineChars a StreamReader extension (but obviously you don't have to keep it that way).

public static class FileInfoExtensions
{
    public static FileInfo DeleteLines(this FileInfo source, ICollection<int> lineNumbers, string targetFilePath)
    {
        var lineCount = 1;

        using (var streamReader = new StreamReader(source.FullName))
        {
            using (var streamWriter = new StreamWriter(targetFilePath))
            {
                string line;

                while ((line = streamReader.ReadLineKeepNewLineChars()) != null)
                {
                    if (!lineNumbers.Contains(lineCount))
                    {
                        streamWriter.Write(line);
                    }

                    lineCount++;
                }
            }
        }

        return new FileInfo(targetFilePath);
    }
}

public static class StreamReaderExtensions
{
    private const char EndOfFile = '\uffff';

    /// <summary>
    /// Reads a line, similar to ReadLine method, but keeps any
    /// new line characters (e.g. "\r\n" or "\n").
    /// </summary>
    public static string ReadLineKeepNewLineChars(this StreamReader source)
    {
        if (source == null)
            throw new ArgumentNullException(nameof(source));

        char ch = (char)source.Read();

        if (ch == EndOfFile)
            return null;

        var sb = new StringBuilder();

        while (ch !=  EndOfFile)
        {
            sb.Append(ch);

            if (ch == '\n')
                break;

            ch = (char) source.Read();
        }

        return sb.ToString();
    }
}

SQL uses three-valued logic for truth values. The IN query produces the expected result:

SELECT * FROM (VALUES (1), (2)) AS tbl(col) WHERE col IN (NULL, 1)
-- returns first row

But adding a NOT does not invert the results:

SELECT * FROM (VALUES (1), (2)) AS tbl(col) WHERE NOT col IN (NULL, 1)
-- returns zero rows

This is because the above query is equivalent of the following:

SELECT * FROM (VALUES (1), (2)) AS tbl(col) WHERE NOT (col = NULL OR col = 1)

Here is how the where clause is evaluated:

| col | col = NULL?¹?  | col = 1 | col = NULL OR col = 1 | NOT (col = NULL OR col = 1) |
|-----|----------------|---------|-----------------------|-----------------------------|
| 1   | UNKNOWN        | TRUE    | TRUE                  | FALSE                       |
| 2   | UNKNOWN        | FALSE   | UNKNOWN?²?            | UNKNOWN?³?                  |

Notice that:

1. The comparison involving NULL yields UNKNOWN
2. The OR expression where none of the operands are TRUE and at least one operand is UNKNOWN yields UNKNOWN (ref)
3. The NOT of UNKNOWN yields UNKNOWN (ref)

You can extend the above example to more than two values (e.g. NULL, 1 and 2) but the result will be same: if one of the values is NULL then no row will match.

this statement

DBMS_OUTPUT.PUT_LINE('a.firstName' || 'a.lastName');

means to print the string as it is.. remove the quotes to get the values to be printed.So the correct syntax is

DBMS_OUTPUT.PUT_LINE(a.firstName || a.lastName);

You can make the file accessible via a web server then you can use curl or lynx

modifying the proxy value under

[HKEY_USERS\<your SID>\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

doesnt need to restart ie

Have a look at this fiddle http://jsfiddle.net/ganarajpr/MSjqL/

I have ( I assume! ) done exactly what you were doing and it seems to be working. Can you check what is not working here for you?

Similar to answer above but without the absolute positioning:

<select style="width: 200px; float: left;" onchange="this.nextElementSibling.value=this.value">
    <option></option>
    <option>1</option>
    <option>2</option>
    <option>3</option> 
</select>
<input style="width: 185px; margin-left: -199px; margin-top: 1px; border: none; float: left;"/>

So create a input box and put it over the top of the combobox

What you are trying to achieve is equivalent to

interface Event {
   name: string;
   dateCreated: string;
   type: string;
}

interface UserEvent extends Event {
   UserId: string; 
}

The way you defined the types does not allow for specifying inheritance, however you can achieve something similar using intersection types, as artem pointed out.

The function move.CompleteMove(events) that you use within your class probably doesn't contain a return statement. So nothing is returned to self.values (==> None). Use return in move.CompleteMove(events) to return whatever you want to store in self.values and it should work. Hope this helps.

At the end of the day I'm not interested in combining streams, but in obtaining the combined result of processing each element of all those streams.

While combining streams might prove to be cumbersome (thus this thread), combining their processing results is fairly easy.

The key to solve is to create your own collector and ensure that the supplier function for the new collector returns the same collection every time (not a new one), the code below illustrates this approach.

package scratchpad;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collector;
import java.util.stream.Stream;

public class CombineStreams {
    public CombineStreams() {
        super();
    }

    public static void main(String[] args) {
        List<String> resultList = new ArrayList<>();
        Collector<String, List<String>, List<String>> collector = Collector.of(
                () -> resultList,
                (list, item) -> {
                    list.add(item);
                },
                (llist, rlist) -> {
                    llist.addAll(rlist);
                    return llist;
                }
        );
        String searchString = "Wil";

        System.out.println("After processing first stream\n"
                + createFirstStream().filter(name -> name.contains(searchString)).collect(collector));
        System.out.println();

        System.out.println("After processing second stream\n"
                + createSecondStream().filter(name -> name.contains(searchString)).collect(collector));
        System.out.println();

        System.out.println("After processing third stream\n"
                + createThirdStream().filter(name -> name.contains(searchString)).collect(collector));
        System.out.println();

    }

    private static Stream<String> createFirstStream() {
        return Arrays.asList(
                "William Shakespeare",
                "Emily Dickinson",
                "H. P. Lovecraft",
                "Arthur Conan Doyle",
                "Leo Tolstoy",
                "Edgar Allan Poe",
                "Robert Ervin Howard",
                "Rabindranath Tagore",
                "Rudyard Kipling",
                "Seneca",
                "John Donne",
                "Sarah Williams",
                "Oscar Wilde",
                "Catullus",
                "Alfred Tennyson",
                "William Blake",
                "Charles Dickens",
                "John Keats",
                "Theodor Herzl"
        ).stream();
    }

    private static Stream<String> createSecondStream() {
        return Arrays.asList(
                "Percy Bysshe Shelley",
                "Ernest Hemingway",
                "Barack Obama",
                "Anton Chekhov",
                "Henry Wadsworth Longfellow",
                "Arthur Schopenhauer",
                "Jacob De Haas",
                "George Gordon Byron",
                "Jack London",
                "Robert Frost",
                "Abraham Lincoln",
                "O. Henry",
                "Ovid",
                "Robert Louis Stevenson",
                "John Masefield",
                "James Joyce",
                "Clark Ashton Smith",
                "Aristotle",
                "William Wordsworth",
                "Jane Austen"
        ).stream();
    }

    private static Stream<String> createThirdStream() {
        return Arrays.asList(
                "Niccolò Machiavelli",
                "Lewis Carroll",
                "Robert Burns",
                "Edgar Rice Burroughs",
                "Plato",
                "John Milton",
                "Ralph Waldo Emerson",
                "Margaret Thatcher",
                "Sylvie d'Avigdor",
                "Marcus Tullius Cicero",
                "Banjo Paterson",
                "Woodrow Wilson",
                "Walt Whitman",
                "Theodore Roosevelt",
                "Agatha Christie",
                "Ambrose Bierce",
                "Nikola Tesla",
                "Franz Kafka"
        ).stream();
    }
}

Evaluating "1,2,3" results in (1, 2, 3), a tuple. As you've discovered, tuples are immutable. Convert to a list before processing.

Another alternative:

No need to define 2 animation for fadeIn and fadeOut. fadeOut is reverse of fadeIn.

So you can do this with Animation.REVERSE like this:

AlphaAnimation alphaAnimation = new AlphaAnimation(0.0f, 1.0f);
alphaAnimation.setDuration(1000);
alphaAnimation.setRepeatCount(1);
alphaAnimation.setRepeatMode(Animation.REVERSE);
view.findViewById(R.id.imageview_logo).startAnimation(alphaAnimation);

then onAnimationEnd:

alphaAnimation.setAnimationListener(new Animation.AnimationListener() {
    @Override
        public void onAnimationStart(Animation animation) {
            //TODO: Run when animation start
        }

        @Override
        public void onAnimationEnd(Animation animation) {
            //TODO: Run when animation end
        }

        @Override
        public void onAnimationRepeat(Animation animation) {
            //TODO: Run when animation repeat
        }
    });

For your particular case you could also use Array#join when constructing file path type of string:

string = [ROOT_DIR, project, 'App.config'].join('/')]

This has a pleasant side effect of automatically converting different types to string:

['foo', :bar, 1].join('/')
=>"foo/bar/1"

Using your example provided

#KISS (Keep it simple stupid)
size=${#myvar}
echo $size

Read a File from resources folder using NIO, in java8

public static String read(String fileName) {

        Path path;
        StringBuilder data = new StringBuilder();
        Stream<String> lines = null;
        try {
            path = Paths.get(Thread.currentThread().getContextClassLoader().getResource(fileName).toURI());
            lines = Files.lines(path);
        } catch (URISyntaxException | IOException e) {
            logger.error("Error in reading propertied file " + e);
            throw new RuntimeException(e);
        }

        lines.forEach(line -> data.append(line));
        lines.close();
        return data.toString();
    }

Here is the a quick solution for multiple checkbox validation using jquery validation plugin:

jQuery.validator.addMethod('atLeastOneChecked', function(value, element) {
  return ($('.cbgroup input:checked').length > 0);
});

$('#subscribeForm').validate({
  rules: {
    list0: { atLeastOneChecked: true }
  },
  messages: {
    list0: { 'Please check at least one option' }
  }
});

$('.cbgroup input').click(function() {
  $('#list0').valid();
});

A proper solution is using a css class instead of writing src in js file. For example instead of using:

$(this).css("background", "url('../Images/filters_collapse.jpg')");

use:

$(this).addClass("xxx");

and in a css file that is loaded in the page write:

.xxx {
  background-image:url('../Images/filters_collapse.jpg');
}

unsigned char c;

for( int i = 7; i >= 0; i-- ) {
    printf( "%d", ( c >> i ) & 1 ? 1 : 0 );
}

printf("\n");

Explanation:

With every iteration, the most significant bit is being read from the byte by shifting it and binary comparing with 1.

For example, let's assume that input value is 128, what binary translates to 1000 0000. Shifting it by 7 will give 0000 0001, so it concludes that the most significant bit was 1. 0000 0001 & 1 = 1. That's the first bit to print in the console. Next iterations will result in 0 ... 0.

If you need it only locally for local development, I've created utility exactly for this task - https://github.com/pie6k/easy-https

import { createHttpsDevServer } from 'easy-https';

async function start() {
  const server = await createHttpsDevServer(
    async (req, res) => {
      res.statusCode = 200;
      res.write('ok');
      res.end();
    },
    {
      domain: 'my-app.dev',
      port: 3000,
      subdomains: ['test'], // will add support for test.my-app.dev
      openBrowser: true,
    },
  );
}

start();

It:

• Will automatically add proper domain entries to /etc/hosts
• Will ask you for admin password only if needed on first run / domain change
• Will prepare https certificates for given domains
• Will trust those certificates on your local machine
• Will open the browser on start pointing to your local server https url

new_data <- data %>% filter_all(any_vars(is.na(.))) 

This should create a new data frame (new_data) with only the missing values in it.

Works best to keep a track of values that you might later drop because they had some columns with missing observations (NA).

The COLLATE keyword specify what kind of character set and rules (order, confrontation rules) you are using for string values.

For example in your case you are using Latin rules with case insensitive (CI) and accent sensitive (AS)

You can refer to this Documentation

I would suggest you to use fseek-ftell functions.

FILE *stream = fopen("example.txt", "r");

if(!stream) {
    puts("I/O error.\n");
    return;
}

fseek(stream, 0, SEEK_END);
long size = ftell(stream);
fseek(stream, 0, SEEK_SET);

while(1) {

    if(ftell(stream) == size) {
        break;
    }

    /* INSERT ROUTINE */

}

fclose(stream);