The principal problem is that you have to get an specific behavior when you start an activity from background. If you override your onPause() and onResume() methods, you'll have a close answer, but not the solution. The problem is that onPause() and onResume() methods are called even if you don't minimize your application, they can be called when you start an activity and later you press the back button to return to your activity. To eliminate that problem and to know really when your application comes from background, you must to get the running process and compare with your process:

private boolean isApplicationBroughtToBackground() {
    ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
    List<RunningTaskInfo> tasks = am.getRunningTasks(1);
    if (!tasks.isEmpty()) {
        ComponentName topActivity = tasks.get(0).topActivity;
        if (!topActivity.getPackageName().equals(getPackageName())) {
            return true;
        }
    }
    return false;
}

Now you have to declare a boolean variable:

public boolean wasPaused = false;

And ask when your activity comes to background:

@Override
public void onPause(){
    super.onPause();
    if(isApplicationBroughtToBackground())
        wasPaused = true;
}

Now, when your activity comes to the screen again, ask in onResume() method:

@Override
public void onResume(){
    super.onResume();
    if(wasPaused){
        lockScreen(true);
    }
    wasPaused = false;
}

And this is it. Now, when your activity comes to background, and later the user brings it to foreground, the lock screen will appear.

If you want to repeat this behavior for whatever activity of your app, you have to create an activity (could be BaseActivity), put this methods, and all your activities have to inherit from BaseActivity.

I hope that this help to you.

Greetings!

The easiest way to do it is using flock on file. In Python script you'd do

lf = open('/tmp/script.lock','w')
if(fcntl.flock(lf, fcntl.LOCK_EX|fcntl.LOCK_NB) != 0): 
   sys.exit('other instance already running')
lf.write('%d\n'%os.getpid())
lf.flush()

In shell you can actually test if it's running:

if [ `flock -xn /tmp/script.lock -c 'echo 1'` ]; then 
   echo 'it's not running'
   restart.
else
   echo -n 'it's already running with PID '
   cat /tmp/script.lock
fi

But of course you don't have to test, because if it's already running and you restart it, it'll exit with 'other instance already running'

When process dies, all it's file descriptors are closed and all locks are automatically removed.

On my side I created a sub MyMsgBox replacing \n in the prompt by ControlChars.NewLine

For both *printf and *scanf, %s expects the corresponding argument to be of type char *, and for scanf, it had better point to a writable buffer (i.e., not a string literal).

char *str_constant = "I point to a string literal";
char str_buf[] = "I am an array of char initialized with a string literal";

printf("string literal = %s\n", "I am a string literal");
printf("str_constant = %s\n", str_constant);
printf("str_buf = %s\n", str_buf);

scanf("%55s", str_buf);

Using %s in scanf without an explcit field width opens the same buffer overflow exploit that gets did; namely, if there are more characters in the input stream than the target buffer is sized to hold, scanf will happily write those extra characters to memory outside the buffer, potentially clobbering something important. Unfortunately, unlike in printf, you can't supply the field with as a run time argument:

printf("%*s\n", field_width, string);

One option is to build the format string dynamically:

char fmt[10];
sprintf(fmt, "%%%lus", (unsigned long) (sizeof str_buf) - 1);
...
scanf(fmt, target_buffer); // fmt = "%55s"

EDIT

Using scanf with the %s conversion specifier will stop scanning at the first whitespace character; for example, if your input stream looks like

"This is a test"

then scanf("%55s", str_buf) will read and assign "This" to str_buf. Note that the field with specifier doesn't make a difference in this case.

Try

class MissileLauncher
{
public:
    MissileLauncher(void);

private:
    unsigned char abc[3];
};

or

using byte = unsigned char;

class MissileLauncher
{
public:
    MissileLauncher(void);

private:
    byte abc[3];
};

**Note: In older compilers (non-C++11) replace the using line with typedef unsigned char byte;

Windows:

1. in File Win/Users/HOME/.gitconfig set mergetool.keepTemporaries=false
2. in File git/libexec/git-core/git-mergetool, in the function cleanup_temp_files() add rm -rf -- "$MERGED.orig" within the else block.

As a picture is worth a thousand words..

When you find the IIS6 manager (I have found that searching for IIS may return 2 results) go to the SMTP server properties then 'Access' then press the relay button.

Then you can either select all or only allow certain ip's like 127.0.0.1

you also do something good:

text_empty = df['column name'].str.len() > -1

df.loc[text_empty].index

The results will be the rows which are empty & it's index number.

There are several ways to do this:

$collection = Mage::getModel('...')
            ->getCollection()
            ->setPageSize(20)
            ->setCurPage(1);

Will get first 20 records.

Here is the alternative and maybe more readable way:

$collection = Mage::getModel('...')->getCollection();
$collection->getSelect()->limit(20);

This will call Zend Db limit. You can set offset as second parameter.

I'd like to do this way :)

const sthError = () => Promise.reject('sth error');

const test = opts => {
  return (async () => {

    // do sth
    await sthError();
    return 'ok';

  })().catch(err => {
    console.error(err); // error will be catched there 
  });
};

test().then(ret => {
  console.log(ret);
});

It's similar to handling error with co

const test = opts => {
  return co(function*() {

    // do sth
    yield sthError();
    return 'ok';

  }).catch(err => {
    console.error(err);
  });
};

Do NOT loop through all cells!! There is a lot of overhead in communications between worksheets and VBA, for both reading and writing. Looping through all cells will be agonizingly slow. I'm talking hours.

Instead, load an entire sheet at once into a Variant array. In Excel 2003, this takes about 2 seconds (and 250 MB of RAM). Then you can loop through it in no time at all.

In Excel 2007 and later, sheets are about 1000 times larger (1048576 rows × 16384 columns = 17 billion cells, compared to 65536 rows × 256 columns = 17 million in Excel 2003). You will run into an "Out of memory" error if you try to load the whole sheet into a Variant; on my machine I can only load 32 million cells at once. So you have to limit yourself to the range you know has actual data in it, or load the sheet bit by bit, e.g. 30 columns at a time.

Option Explicit

Sub test()

    Dim varSheetA As Variant
    Dim varSheetB As Variant
    Dim strRangeToCheck As String
    Dim iRow As Long
    Dim iCol As Long

    strRangeToCheck = "A1:IV65536"
    ' If you know the data will only be in a smaller range, reduce the size of the ranges above.
    Debug.Print Now
    varSheetA = Worksheets("Sheet1").Range(strRangeToCheck)
    varSheetB = Worksheets("Sheet2").Range(strRangeToCheck) ' or whatever your other sheet is.
    Debug.Print Now

    For iRow = LBound(varSheetA, 1) To UBound(varSheetA, 1)
        For iCol = LBound(varSheetA, 2) To UBound(varSheetA, 2)
            If varSheetA(iRow, iCol) = varSheetB(iRow, iCol) Then
                ' Cells are identical.
                ' Do nothing.
            Else
                ' Cells are different.
                ' Code goes here for whatever it is you want to do.
            End If
        Next iCol
    Next iRow

End Sub

To compare to a sheet in a different workbook, open that workbook and get the sheet as follows:

Set wbkA = Workbooks.Open(filename:="C:\MyBook.xls")
Set varSheetA = wbkA.Worksheets("Sheet1") ' or whatever sheet you need

Use console.dir() to output a browse-able object you can click through instead of the .toString() version, like this:

console.dir(obj/this/anything)

How to show full object in Chrome console?

You have to upgrade your subversion client to at least 1.7.

With the command line client, you have to manually upgrade your working copy format by issuing the command svn upgrade:

Upgrading the Working Copy

Subversion 1.7 introduces substantial changes to the working copy format. In previous releases of Subversion, Subversion would automatically update the working copy to the new format when a write operation was performed. Subversion 1.7, however, will make this a manual step. Before using Subversion 1.7 with their working copies, users will be required to run a new command, svn upgrade to update the metadata to the new format. This command may take a while, and for some users, it may be more practical to simply checkout a new working copy.
— Subversion 1.7 Release Notes

TortoiseSVN will perform the working copy upgrade with the next write operation:

Upgrading the Working Copy

Subversion 1.7 introduces substantial changes to the working copy format. In previous releases, Subversion would automatically update the working copy to the new format when a write operation was performed. Subversion 1.7, however, will make this a manual step.

Before you can use an existing working copy with TortoiseSVN 1.7, you have to upgrade the format first. If you right-click on an old working copy, TortoiseSVN only shows you one command in the context menu: Upgrade working copy.
— TortoiseSVN 1.7 Release notes

No built-in method. But you can implement one easily:

public static int getIndexOf(String[] strings, String item) {
    for (int i = 0; i < strings.length; i++) {
        if (item.equals(strings[i])) return i;
    }
    return -1;
}

If your tables are on the same mysql server you can run the following

CREATE TABLE destination_db.my_table SELECT * FROM source_db.my_table;
ALTER TABLE destination_db.my_table ADD PRIMARY KEY (id); 
ALTER TABLE destination_db.my_table MODIFY COLUMN id INT AUTO_INCREMENT;

https://play.google.com/store/apps/details?id=com.mycompany.easyGUI try this tool its not for free but offers simple way to create android ui on your phone

Just use CSS to increase it's height:

<input type="text" style="height:30px;" name="item" align="left" />

Or, often times, you want to increase it's height by using padding instead of specifying an exact height:

<input type="text" style="padding: 5px;" name="item" align="left" />

It's quite easy, actually. You can use the System.IO.Directory class in conjunction with System.IO.Path. Something like (using LINQ makes it even easier):

var allFilenames = Directory.EnumerateFiles(path).Select(p => Path.GetFileName(p));

// Get all filenames that have a .txt extension, excluding the extension
var candidates = allFilenames.Where(fn => Path.GetExtension(fn) == ".txt")
                             .Select(fn => Path.GetFileNameWithoutExtension(fn));

There are many variations on this technique too, of course. Some of the other answers are simpler if your filter is simpler. This one has the advantage of the delayed enumeration (if that matters) and more flexible filtering at the expense of more code.

Actually, there are some situations which the throw statment will not preserve the StackTrace information. For example, in the code below:

try
{
  int i = 0;
  int j = 12 / i; // Line 47
  int k = j + 1;
}
catch
{
  // do something
  // ...
  throw; // Line 54
}

The StackTrace will indicate that line 54 raised the exception, although it was raised at line 47.

Unhandled Exception: System.DivideByZeroException: Attempted to divide by zero.
   at Program.WithThrowIncomplete() in Program.cs:line 54
   at Program.Main(String[] args) in Program.cs:line 106

In situations like the one described above, there are two options to preseve the original StackTrace:

Calling the Exception.InternalPreserveStackTrace

As it is a private method, it has to be invoked by using reflection:

private static void PreserveStackTrace(Exception exception)
{
  MethodInfo preserveStackTrace = typeof(Exception).GetMethod("InternalPreserveStackTrace",
    BindingFlags.Instance | BindingFlags.NonPublic);
  preserveStackTrace.Invoke(exception, null);
}

I has a disadvantage of relying on a private method to preserve the StackTrace information. It can be changed in future versions of .NET Framework. The code example above and proposed solution below was extracted from Fabrice MARGUERIE weblog.

Calling Exception.SetObjectData

The technique below was suggested by Anton Tykhyy as answer to In C#, how can I rethrow InnerException without losing stack trace question.

static void PreserveStackTrace (Exception e) 
{ 
  var ctx = new StreamingContext  (StreamingContextStates.CrossAppDomain) ; 
  var mgr = new ObjectManager     (null, ctx) ; 
  var si  = new SerializationInfo (e.GetType (), new FormatterConverter ()) ; 

  e.GetObjectData    (si, ctx)  ; 
  mgr.RegisterObject (e, 1, si) ; // prepare for SetObjectData 
  mgr.DoFixups       ()         ; // ObjectManager calls SetObjectData 

  // voila, e is unmodified save for _remoteStackTraceString 
} 

Although, it has the advantage of relying in public methods only it also depends on the following exception constructor (which some exceptions developed by 3rd parties do not implement):

protected Exception(
    SerializationInfo info,
    StreamingContext context
)

In my situation, I had to choose the first approach, because the exceptions raised by a 3rd-party library I was using didn't implement this constructor.

If you want to retrieve the length (and possibly all other metadata) from your media file with ffmpeg by using a python script you could try this:

import subprocess
import json

input_file  = "< path to your input file here >"

metadata = subprocess.check_output(f"ffprobe -i {input_file} -v quiet -print_format json -show_format -hide_banner".split(" "))

metadata = json.loads(metadata)
print(f"Length of file is: {float(metadata['format']['duration'])}")
print(metadata)

Output:

Length of file is: 7579.977143

{
  "streams": [
    {
      "index": 0,
      "codec_name": "mp3",
      "codec_long_name": "MP3 (MPEG audio layer 3)",
      "codec_type": "audio",
      "codec_time_base": "1/44100",
      "codec_tag_string": "[0][0][0][0]",
      "codec_tag": "0x0000",
      "sample_fmt": "fltp",
      "sample_rate": "44100",
      "channels": 2,
      "channel_layout": "stereo",
      "bits_per_sample": 0,
      "r_frame_rate": "0/0",
      "avg_frame_rate": "0/0",
      "time_base": "1/14112000",
      "start_pts": 353600,
      "start_time": "0.025057",
      "duration_ts": 106968637440,
      "duration": "7579.977143",
      "bit_rate": "320000",
      ...
      ...

A parent class should not have knowledge of child classes. You can implement a method calculate() and override it in every subclass:

class Person {
    String name;
    void getName(){...}
    void calculate();
}

and then

class Student extends Person{
    String class;
    void getClass(){...}

    @Override
    void calculate() {
        // do something with a Student
    }
}

and

class Teacher extends Person{
    String experience;
    void getExperience(){...}

    @Override
    void calculate() {
        // do something with a Student
    }

}

By the way. Your statement about abstract classes is confusing. You can call methods defined in an abstract class, but of course only of instances of subclasses.

In your example you can make Person abstract and the use getName() on instanced of Student and Teacher.

something like

git status | sed -s "s/^.*deleted: //" | xargs git rm 

may do it.

Inspired by Jon Skeet, a non-loop version that wont blow your stack. Also useful starting point if you want to use the fork-join framework.

public static int countOccurrences(CharSequeunce haystack, char needle) {
    return countOccurrences(haystack, needle, 0, haystack.length);
}

// Alternatively String.substring/subsequence use to be relatively efficient
//   on most Java library implementations, but isn't any more [2013].
private static int countOccurrences(
    CharSequence haystack, char needle, int start, int end
) {
    if (start == end) {
        return 0;
    } else if (start+1 == end) {
        return haystack.charAt(start) == needle ? 1 : 0;
    } else {
        int mid = (end+start)>>>1; // Watch for integer overflow...
        return
            countOccurrences(haystack, needle, start, mid) +
            countOccurrences(haystack, needle, mid, end);
    }
}

(Disclaimer: Not tested, not compiled, not sensible.)

Perhaps the best (single-threaded, no surrogate-pair support) way to write it:

public static int countOccurrences(String haystack, char needle) {
    int count = 0;
    for (char c : haystack.toCharArray()) {
        if (c == needle) {
           ++count;
        }
    }
    return count;
}

none of these solutions worked for me.

I have a terms and conditions modal that i wanted to force people to review before continuing...the defaults "static" and "keyboard" as per the options made it impossible to scroll down the page as the terms and conditions are a few pages log, static was not the answer for me.

So instead i went to unbind the the click method on the modal, with the following i was able to get the desired effect.

$('.modal').off('click');

Per this link:

the symptom could occur if the replication service tries to use the ports that occupied by others, or by a malfunction NIC. Please try the following steps:

1. Restart the windows firewall service
2. Reboot the problematic machine
3. Restart the “TCP/IP stack”. Run CMD as administrator, type “netsh int ip reset resetlog.txt” to reset TCP/IP.
4. Try to temporarily disable antivirus.

yes - the engine will throw different exceptions for different conditions.

you will change this part to catch the exception and do something different

  EXCEPTION
      WHEN OTHERS THEN

here is a reference

http://download.oracle.com/docs/cd/B10501_01/appdev.920/a96624/07_errs.htm

Although the following line is taken from a windows batch script, the command should be quite similar:

psql -U username -h localhost -d postgres -c "DROP DATABASE \"$DATABASE\";"

This command is used to clear the whole database, by actually dropping it. The $DATABASE (in Windows should be %DATABASE%) in the command is a windows style environment variable that evaluates to the database name. You will need to substitute that by your development_db_name.

Note: When you consider onclick="this.select()", At the first click, All characters will be selected, After that maybe you wanted to edit something in input and click among characters again but it will select all characters again. To fix this problem you should use onfocus instead of onclick.

What about re === str (case compare)?

Since it evaluates to true or false and has no need for storing matches, returning match index and that stuff, I wonder if it would be an even faster way of matching than =~.

Ok, I tested this. =~ is still faster, even if you have multiple capture groups, however it is faster than the other options.

BTW, what good is freeze? I couldn't measure any performance boost from it.

Use the library ngx-print.

Installing:

yarn add ngx-print
or
npm install ngx-print --save

Change your module:

import {NgxPrintModule} from 'ngx-print';
...
imports: [
    NgxPrintModule,
...

Template:

<div id="print-section">
  // print content
</div>
<button ngxPrint printSectionId="print-section">Print</button>

More details

use Control.InvokePaint you can also use it for manual double buffering

Adding java.util.list will resolve your problem because List interface which you are trying to use is part of java.util.list package.

Try using the following:

Window parentWindow = Window.GetWindow(userControlReference);

The GetWindow method will walk the VisualTree for you and locate the window that is hosting your control.

You should run this code after the control has loaded (and not in the Window constructor) to prevent the GetWindow method from returning null. E.g. wire up an event:

this.Loaded += new RoutedEventHandler(UserControl_Loaded); 

For future Googlers, If you get an error similar below after you trigger click for a polygon

"Uncaught TypeError: Cannot read property 'vertex' of undefined"

then try the code below

google.maps.event.trigger(polygon, "click", {});

I still doubt about this, but I've tried it at my script and I'm using xdebug to know how it will affect my app memory usage. The script is set on my function like this :

function gen_table_data($serv, $coorp, $type, $showSql = FALSE, $table = 'ireg_idnts') {
    $sql = "SELECT COUNT(`operator`) `operator` FROM $table WHERE $serv = '$coorp'";
    if($showSql === FALSE) {
        $sql = mysql_query($sql) or die(mysql_error());
        $data = mysql_fetch_array($sql);
        return $data[0];
    } else echo $sql;
}

And I add unset just before the return code and it give me : 160200 then I try to change it with $sql = NULL and it give me : 160224 :)

But there is something unique on this comparative when I am not using unset() or NULL, xdebug give me 160144 as memory usage

So, I think giving line to use unset() or NULL will add process to your application and it will be better to stay origin with your code and decrease the variable that you are using as effective as you can .

Correct me if I'm wrong, thanks

Node : http://www.w3schools.com/js/js_htmldom_nodes.asp

The Node object represents a single node in the document tree. A node can be an element node, an attribute node, a text node, or any other of the node types explained in the Node Types chapter.

Element : http://www.w3schools.com/js/js_htmldom_elements.asp

The Element object represents an element in an XML document. Elements may contain attributes, other elements, or text. If an element contains text, the text is represented in a text-node.

duplicate :

• What's the difference between an element and a node in XML?
• Why are Nodes and Elements different in XML? What was the rationale?

Use ArrayList.set

list.set(2, "New");

Also, you can create your own outerHeight for HTML elements. I don't know if it works in IE, but it works in Chrome. Perhaps, you can enhance the code below using currentStyle, suggested in the answer above.

Object.defineProperty(Element.prototype, 'outerHeight', {
    'get': function(){
        var height = this.clientHeight;
        var computedStyle = window.getComputedStyle(this); 
        height += parseInt(computedStyle.marginTop, 10);
        height += parseInt(computedStyle.marginBottom, 10);
        height += parseInt(computedStyle.borderTopWidth, 10);
        height += parseInt(computedStyle.borderBottomWidth, 10);
        return height;
    }
});

This piece of code allow you to do something like this:

document.getElementById('foo').outerHeight

According to caniuse.com, getComputedStyle is supported by main browsers (IE, Chrome, Firefox).

Found these docu on the google docu pages:

• row --- int --- top row of the range
• column --- int--- leftmost column of the range
• optNumRows --- int --- number of rows in the range.
• optNumColumns --- int --- number of columns in the range

In your example, you would get (if you picked the 3rd row) "C3:O3", cause C --> O is 12 columns

edit

Using the example on the docu:

// The code below will get the number of columns for the range C2:G8
// in the active spreadsheet, which happens to be "4"
var count = SpreadsheetApp.getActiveSheet().getRange(2, 3, 6, 4).getNumColumns(); Browser.msgBox(count);

The values between brackets:
2: the starting row = 2
3: the starting col = C
6: the number of rows = 6 so from 2 to 8
4: the number of cols = 4 so from C to G

So you come to the range: C2:G8

To clarify, a database created under SQL Server 2008 R2 was being opened in an instance of SQL Server 2008 (the version prior to R2). The solution for me was to simply perform an upgrade installation of SQL Server 2008 R2. I can only speak for the Express edition, but it worked.

Oddly, though, the Web Platform Installer indicated that I had Express R2 installed. The better way to tell is to ask the database server itself:

SELECT @@VERSION

I needed the same concept to compress sequentially several directories or files from a certain folder. I have solved using awk to parsel the list from ls and to avoid the problem of blank space in the name.

source="/xxx/xxx"
dest="/yyy/yyy"

n_max=`ls . | wc -l`

echo "Loop over items..."
i=1
while [ $i -le $n_max ];do
item=`ls . | awk 'NR=='$i'' `
echo "File selected for compression: $item"
tar -cvzf $dest/"$item".tar.gz "$item"
i=$(( i + 1 ))
done
echo "Done!!!"

what do you think?

if it's background, use background-size: cover;

body{_x000D_
    background-image: url('http://i.stack.imgur.com/kx8MT.gif');_x000D_
    background-size: cover;_x000D_
    _x000D_
    _x000D_
    _x000D_
    height: 100vh;_x000D_
    padding:0;_x000D_
    margin:0;_x000D_
}

Let's see:

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

int main()
{
    char *p = "hello";
    char q[] = "hello"; // no need to count this

    printf("%zu\n", sizeof(p)); // => size of pointer to char -- 4 on x86, 8 on x86-64
    printf("%zu\n", sizeof(q)); // => size of char array in memory -- 6 on both

    // size_t strlen(const char *s) and we don't get any warnings here:
    printf("%zu\n", strlen(p)); // => 5
    printf("%zu\n", strlen(q)); // => 5

    return 0;
}

foo* and foo[] are different types and they are handled differently by the compiler (pointer = address + representation of the pointer's type, array = pointer + optional length of the array, if known, for example, if the array is statically allocated), the details can be found in the standard. And at the level of runtime no difference between them (in assembler, well, almost, see below).

Also, there is a related question in the C FAQ:

Q: What is the difference between these initializations?

char a[] = "string literal";   
char *p  = "string literal";   

My program crashes if I try to assign a new value to p[i].

A: A string literal (the formal term for a double-quoted string in C source) can be used in two slightly different ways:

1. As the initializer for an array of char, as in the declaration of char a[] , it specifies the initial values of the characters in that array (and, if necessary, its size).
2. Anywhere else, it turns into an unnamed, static array of characters, and this unnamed array may be stored in read-only memory, and which therefore cannot necessarily be modified. In an expression context, the array is converted at once to a pointer, as usual (see section 6), so the second declaration initializes p to point to the unnamed array's first element.

Some compilers have a switch controlling whether string literals are writable or not (for compiling old code), and some may have options to cause string literals to be formally treated as arrays of const char (for better error catching).

See also questions 1.31, 6.1, 6.2, 6.8, and 11.8b.

References: K&R2 Sec. 5.5 p. 104

ISO Sec. 6.1.4, Sec. 6.5.7

Rationale Sec. 3.1.4

H&S Sec. 2.7.4 pp. 31-2

For my case i need to close Virtualbox

As @TechSpellBound suggested remove the quotes around the ? signs. Then add a space character at the end of each row in your concatenated string. Otherwise the entire query will be sent as (using only part of it as an example) : .... WHERE bookings.booking_end < date ?OR bookings.booking_start > date ?GROUP BY ....

The ? and the OR needs to be seperated by a space character. Do it wherever needed in the query string.

Well we don't actually need inspect here.

>>> func = lambda x, y: (x, y)
>>> 
>>> func.__code__.co_argcount
2
>>> func.__code__.co_varnames
('x', 'y')
>>>
>>> def func2(x,y=3):
...  print(func2.__code__.co_varnames)
...  pass # Other things
... 
>>> func2(3,3)
('x', 'y')
>>> 
>>> func2.__defaults__
(3,)

For Python 2.5 and older, use func_code instead of __code__, and func_defaults instead of __defaults__.

Well, after looking around the best comparison I've found so far is:

• http://www.sturmnet.org/blog/2010/03/04/poll-ioc-containers-for-net

• http://www.sturmnet.org/blog/2010/03/04/poll-results-ioc-containers-for-net

It was a poll taken in March 2010.

One point of interest to me is that people who've used a DI/IoC Framework and liked/disliked it, StructureMap appears to come out on top.

Also from the poll, it seems that Castle.Windsor and StructureMap seem to be most highly favoured.

Interestingly, Unity and Spring.Net seem to be the popular options which are most generally disliked. (I was considering Unity out of laziness (and Microsoft badge/support), but I'll be looking more closely at Castle Windsor and StructureMap now.)

Of course this probably (?) doesn't apply to Unity 2.0 which was released in May 2010.

Hopefully someone else can provide a comparison based on direct experience.

Does your SMTP library supports encrypted connection ? The mail server might be expecting secure TLS connection and hence closing the connection in absence of a TLS handshake

curl's --data will by default send Content-Type: application/x-www-form-urlencoded in the request header. However, when using Postman's raw body mode, Postman sends Content-Type: text/plain in the request header.

So to achieve the same thing as Postman, specify -H "Content-Type: text/plain" for curl:

curl -X POST -H "Content-Type: text/plain" --data "this is raw data" http://78.41.xx.xx:7778/

Note that if you want to watch the full request sent by Postman, you can enable debugging for packed app. Check this link for all instructions. Then you can inspect the app (right-click in Postman) and view all requests sent from Postman in the network tab :

Another option would be to set a flag variable as a Boolean and then change that value based on your criteria.

Dim count as Integer 
Dim flag as Boolean

flag = True

While flag
    count = count + 1 

    If count = 10 Then
        'Set the flag to false         '
        flag = false
    End If 
Wend

Right click on the .cs file in the App_Code folder and check its properties.

Make sure the "Build Action" is set to "Compile".

Maybe via JavaScriptSerializer.Serialize?

The reason that you can't return NULL here is because you've declared your return type as Attr&. The trailing & makes the return value a "reference", which is basically a guaranteed-not-to-be-null pointer to an existing object. If you want to be able to return null, change Attr& to Attr*.

I think the correct access method is using the index:

df_2.loc[:,'D'] = df_2['B']

There is no build-in variable for this purpose, but you can always find out the playbook's absolute path with "pwd" command, and register its output to a variable.

- name: Find out playbook's path
  shell: pwd
  register: playbook_path_output
- debug: var=playbook_path_output.stdout

Now the path is available in variable playbook_path_output.stdout

In addition to File.ReadAllText, File.ReadAllLines, and File.WriteAllText (and similar helpers from File class) shown in another answer you can use StreamWriter/StreamReader classes.

Writing a text file:

using(StreamWriter writetext = new StreamWriter("write.txt"))
{
    writetext.WriteLine("writing in text file");
}

Reading a text file:

using(StreamReader readtext = new StreamReader("readme.txt"))
{
   string readText = readtext.ReadLine();
}

Notes:

• You can use readtext.Dispose() instead of using, but it will not close file/reader/writer in case of exceptions
• Be aware that relative path is relative to current working directory. You may want to use/construct absolute path.
• Missing using/Close is very common reason of "why data is not written to file".

sep='' ignore whiteSpace. see the code to understand.Without sep=''

from itertools import permutations
s,k = input().split()
for i in list(permutations(sorted(s), int(k))):
    print(*i)

output:

HACK 2
A C
A H
A K
C A
C H
C K
H A
H C
H K
K A
K C
K H

using sep='' The code and output.

from itertools import permutations
s,k = input().split()
for i in list(permutations(sorted(s), int(k))):
    print(*i,sep='')

output:

HACK 2
AC
AH
AK
CA
CH
CK
HA
HC
HK
KA
KC
KH

Make sure the client computer has the same or higher version of the .NET framework that you built your program to.

For debugging you can also use a "Java Decompiler" such as: JAD and decompile source on the fly (although the generated source is never the same as the original). Then install JAD as a plugin in Eclipse or your favorite IDE.

find -L /var/www/ -type l

# man find

-L     Follow  symbolic links.  When find examines or prints information about files, the information used shall be taken from the

properties of the file to which the link points, not from the link itself (unless it is a broken symbolic link or find is unable to examine the file to which the link points). Use of this option implies -noleaf. If you later use the -P option, -noleaf will still be in effect. If -L is in effect and find discovers a symbolic link to a subdirectory during its search, the subdirectory pointed to by the symbolic link will be searched.

It depends on what database you are using. In MySQL, you would use the "ALTER TABLE" syntax. I don't remember exactly how, but it would go something like this if you wanted to add a column called 'newcol' that was a 200 character varchar:

ALTER TABLE example ADD newCol VARCHAR(200) AFTER otherCol;

You can concatenate strings a number of ways:

let a = "Hello"
let b = "World"

let first = a + ", " + b
let second = "\(a), \(b)"

You could also do:

var c = "Hello"
c += ", World"

I'm sure there are more ways too.

Bit of description

let creates a constant. (sort of like an NSString). You can't change its value once you have set it. You can still add it to other things and create new variables though.

var creates a variable. (sort of like NSMutableString) so you can change the value of it. But this has been answered several times on Stack Overflow, (see difference between let and var).

Note

In reality let and var are very different from NSString and NSMutableString but it helps the analogy.

func partition(inout list : [Int], low: Int, high : Int) -> Int {
    let pivot = list[high]
    var j = low
    var i = j - 1
    while j < high {
        if list[j] <= pivot{
            i += 1
            (list[i], list[j]) = (list[j], list[i])
        }
        j += 1
    }
    (list[i+1], list[high]) = (list[high], list[i+1])
    return i+1
}

func quikcSort(inout list : [Int] , low : Int , high : Int) {

    if low < high {
        let pIndex = partition(&list, low: low, high: high)
        quikcSort(&list, low: low, high: pIndex-1)
        quikcSort(&list, low: pIndex + 1, high: high)
    }
}

var list = [7,3,15,10,0,8,2,4]
quikcSort(&list, low: 0, high: list.count-1)

var list2 = [ 10, 0, 3, 9, 2, 14, 26, 27, 1, 5, 8, -1, 8 ]
quikcSort(&list2, low: 0, high: list2.count-1)

var list3 = [1,3,9,8,2,7,5]
quikcSort(&list3, low: 0, high: list3.count-1) 

This is my Blog about Quick Sort- Github sample Quick-Sort

You can take a look at Lomuto's partitioning algorithm in Partitioning the list. Written in Swift.

In case you can't install the procps package (don't have proper permissions) you can use /proc directory.

The first few directories (named as numbers) are PIDs of your processes. Inside directories, you can find additional information useful to decipher which process is connected to each PID. For example, you can use the cat command to view "cmdline" file to check which process is connected to PID.

$ ls /proc
1 10 11 ...

$ ls -1 /proc/22
attr
autogroup
auxv
cgroup
clear_refs
cmdline
...

$ cat /proc/22/cmdline 
/bin/sh

JEdit and its XML-plugin.

Firstly, it will help if you set the headers of your PHP to serve JSON:

header('Content-type: application/json');

Secondly, it will help to adjust your ajax call:

$.ajax({
    url: "main.php",
    type: "POST",
    dataType: "json",
    data: {"action": "loadall", "id": id},
    success: function(data){
        console.log(data);
    },
    error: function(error){
         console.log("Error:");
         console.log(error);
    }
});

If successful, the response you receieve should be picked up as true JSON and an object should be logged to console.

NOTE: If you want to pick up pure html, you might want to consider using another method to JSON, but I personally recommend using JSON and rendering it into html using templates (such as Handlebars js).

If you have the querystring on hand, use this:

 /**
 * @param qry the querystring
 * @param name name of parameter
 * @returns the parameter specified by name
 * @author [email protected]
 */

function getQueryStringParameter(qry,name){
    if(typeof qry !== undefined && qry !== ""){
        var keyValueArray = qry.split("&");
        for ( var i = 0; i < keyValueArray.length; i++) {
            if(keyValueArray[i].indexOf(name)>-1){
                return keyValueArray[i].split("=")[1];
            }
        }
    }
    return "";
}

don't know why, but it works. Two configuration are the same, just change xxx to your name.

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
    entityManagerFactoryRef = "xxxEntityManager",
    transactionManagerRef = "xxxTransactionManager",
    basePackages = {"aaa.xxx"})
 public class RepositoryConfig {
@Autowired
private Environment env;

@Bean
@Primary
@ConfigurationProperties(prefix="datasource.xxx")
public DataSource xxxDataSource() {
    return DataSourceBuilder.create().build();
}

@Bean
public LocalContainerEntityManagerFactoryBean xxxEntityManager() {
    LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
    em.setDataSource(xxxDataSource());
    em.setPackagesToScan(new String[] {"aaa.xxx"});

    HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
    em.setJpaVendorAdapter(vendorAdapter);
    HashMap<String, Object> properties = new HashMap<String, Object>();
    properties.put("hibernate.show_sql", env.getProperty("hibernate.show_sql"));
    properties.put("hibernate.hbm2ddl.auto", env.getProperty("hibernate.hbm2ddl.auto"));
    properties.put("hibernate.dialect", env.getProperty("hibernate.dialect"));
    em.setJpaPropertyMap(properties);

    return em;
}

@Bean(name = "xxxTransactionManager")
public PlatformTransactionManager xxxTransactionManager() {
    JpaTransactionManager tm = new JpaTransactionManager();
    tm.setEntityManagerFactory(xxxEntityManager().getObject());
    return tm;
}

}

The advantages of using case classes over Enumerations are:

• When using sealed case classes, the Scala compiler can tell if the match is fully specified e.g. when all possible matches are espoused in the matching declaration. With enumerations, the Scala compiler cannot tell.
• Case classes naturally supports more fields than a Value based Enumeration which supports a name and ID.

The advantages of using Enumerations instead of case classes are:

• Enumerations will generally be a bit less code to write.
• Enumerations are a bit easier to understand for someone new to Scala since they are prevalent in other languages

So in general, if you just need a list of simple constants by name, use enumerations. Otherwise, if you need something a bit more complex or want the extra safety of the compiler telling you if you have all matches specified, use case classes.

go to tsconfig.json and comment the line the //strict:true this worked for me

I think onSupportNavigateUp() is simplest and best way to do so

check the code in this link Click here for complete code

There is also a nice Python module named wget that is pretty easy to use. Found here.

This demonstrates the simplicity of the design:

>>> import wget
>>> url = 'http://www.futurecrew.com/skaven/song_files/mp3/razorback.mp3'
>>> filename = wget.download(url)
100% [................................................] 3841532 / 3841532>
>> filename
'razorback.mp3'

Enjoy.

However, if wget doesn't work (I've had trouble with certain PDF files), try this solution.

Edit: You can also use the out parameter to use a custom output directory instead of current working directory.

>>> output_directory = <directory_name>
>>> filename = wget.download(url, out=output_directory)
>>> filename
'razorback.mp3'

Since $.getJSON is async, I think your console.log(list.length); code is firing before your array has been populated. To correct this put your console.log statement inside your callback:

var list = new Array();
$.getJSON("json.js", function(data) {
    $.each(data, function(i, item) {
        console.log(item.text);
        list.push(item.text);
    });
    console.log(list.length);
});

@Zags solution was gorgeous!

I would add, though, a condition for datefields in order to make it JSON friendly.

Bonus Round

If you want a django model that has a better python command-line display, have your models child class the following:

from django.db import models
from django.db.models.fields.related import ManyToManyField

class PrintableModel(models.Model):
    def __repr__(self):
        return str(self.to_dict())

    def to_dict(self):
        opts = self._meta
        data = {}
        for f in opts.concrete_fields + opts.many_to_many:
            if isinstance(f, ManyToManyField):
                if self.pk is None:
                    data[f.name] = []
                else:
                    data[f.name] = list(f.value_from_object(self).values_list('pk', flat=True))
            elif isinstance(f, DateTimeField):
                if f.value_from_object(self) is not None:
                    data[f.name] = f.value_from_object(self).timestamp()
            else:
                data[f.name] = None
            else:
                data[f.name] = f.value_from_object(self)
        return data

    class Meta:
        abstract = True

So, for example, if we define our models as such:

class OtherModel(PrintableModel): pass

class SomeModel(PrintableModel):
    value = models.IntegerField()
    value2 = models.IntegerField(editable=False)
    created = models.DateTimeField(auto_now_add=True)
    reference1 = models.ForeignKey(OtherModel, related_name="ref1")
    reference2 = models.ManyToManyField(OtherModel, related_name="ref2")

Calling SomeModel.objects.first() now gives output like this:

{'created': 1426552454.926738,
'value': 1, 'value2': 2, 'reference1': 1, u'id': 1, 'reference2': [1]}

echo -n "$PROC_NAME $(printf '\055%.0s' {1..40})" | head -c 40 ; echo -n " [UP]"

Explanation:

• printf '\055%.0s' {1..40} - Create 40 dashes
  (dash is interpreted as option so use escaped ascii code instead)
• "$PROC_NAME ..." - Concatenate $PROC_NAME and dashes
• | head -c 40 - Trim string to first 40 chars

just tested doing this and it seems to work in firefox & IE

<html>
    <head>
        <script type="text/javascript">
            function alertFilename()
            {
                var thefile = document.getElementById('thefile');
                alert(thefile.value);
            }
        </script>
    </head>
    <body>
        <form>
            <input type="file" id="thefile" onchange="alertFilename()" />
            <input type="button" onclick="alertFilename()" value="alert" />
        </form>
    </body>
</html>

There is another scenario where this issue reproduces (as in my case). When THE CLIENT REQUEST doesn't contain the right extension on the url, the controller can't identify the desired result format.

For example: the controller is set to respond_to :json (as a single option, without a HTML response)- while the client call is set to /reservations instead of /reservations.json.

Bottom line, change the client call to /reservations.json.

I tried to do this in next way

public static DataTable JoinTwoTables(DataTable innerTable, DataTable outerTable)
        {
            DataTable resultTable = new DataTable();
            var innerTableColumns = new List<string>();
            foreach (DataColumn column in innerTable.Columns)
            {
                innerTableColumns.Add(column.ColumnName);
                resultTable.Columns.Add(column.ColumnName);
            }

            var outerTableColumns = new List<string>();
            foreach (DataColumn column in outerTable.Columns)
            {
                if (!innerTableColumns.Contains(column.ColumnName))
                {
                    outerTableColumns.Add(column.ColumnName);
                    resultTable.Columns.Add(column.ColumnName);
                }                    
            }

            for (int i = 0; i < innerTable.Rows.Count; i++)
            {
                var row = resultTable.NewRow();
                innerTableColumns.ForEach(x =>
                {
                    row[x] = innerTable.Rows[i][x];
                });
                outerTableColumns.ForEach(x => 
                {
                    row[x] = outerTable.Rows[i][x];
                });
                resultTable.Rows.Add(row);
            }
            return resultTable;
        }

Depends on what you mean by "efficient". Performance-wise both versions are the same as its the same bytecode.

$ ./javap.exe -c java.lang.String | grep -A 10 "valueOf(boolean)"
  public static java.lang.String valueOf(boolean);
    Code:
       0: iload_0
       1: ifeq          9
       4: ldc           #14                 // String true
       6: goto          11
       9: ldc           #10                 // String false
      11: areturn


$ ./javap.exe -c java.lang.Boolean | grep -A 10 "toString(boolean)"
  public static java.lang.String toString(boolean);
    Code:
       0: iload_0
       1: ifeq          9
       4: ldc           #3                  // String true
       6: goto          11
       9: ldc           #2                  // String false
      11: areturn

I see this is quite an old post, but came across this looking for an answer for this problem. After reading some of the answers they seem very long winded, so after about 5 mins I managed to solve the problem very simply as follows:

httpd.conf for Apache leave the listen port as 80 and 'Server Name' as FQDN/IP :80.

Now for IIS go to Administrative Services > IIS Manager > 'Sites' in the Left hand nav drop down > in the right window select the top line (default web site) then bindings on the right.

Now select http > edit and change to 81 and enter your local IP for the server/pc and in domain enter either your FQDN (www.domain.com) or external IP close.

Restart both servers ensure your ports are open on both router and firewall, done.

This sounds long winded but literally took 5 mins of playing about. works perfectly.

System: Windows 8, IIS 8, Apache 2.2

Use atoi() from <stdlib.h>

http://linux.die.net/man/3/atoi

Or, write your own atoi() function which will convert char* to int

int a2i(const char *s)
{
  int sign=1;
  if(*s == '-'){
    sign = -1;
    s++;
  }
  int num=0;
  while(*s){
    num=((*s)-'0')+num*10;
    s++;   
  }
  return num*sign;
}

This will work in .NET 4.7.2 with Visual Studio 2017 (15.9.4):

• Remove web/app.config binding redirects
• Remove NuGet package for System.Net.Http
• Open "Add New Reference" and directly link to the new 4.2.0.0 build that ships with .NET 4.7.2

I disagree SpringJPA makes live easy. Yes, it provides some classes and you can make some simple DAO fast, but in fact, it's all you can do. If you want to do something more than findById() or save, you must go through hell:

• no EntityManager access in org.springframework.data.repository classes (this is basic JPA class!)
• own transaction management (hibernate transactions disallowed)
• huge problems with more than one datasources configuration
• no datasource pooling (HikariCP must be in use as third party library)

Why own transaction management is an disadvantage? Since Java 1.8 allows default methods into interfaces, Spring annotation based transactions, simple doesn't work.

Unfortunately, SpringJPA is based on reflections, and sometimes you need to point a method name or entity package into annotations (!). That's why any refactoring makes big crash. Sadly, @Transactional works for primary DS only :( So, if you have more than one DataSources, remember - transactions works just for primary one :)

What are the main differences between Hibernate and Spring Data JPA?

Hibernate is JPA compatibile, SpringJPA Spring compatibile. Your HibernateJPA DAO can be used with JavaEE or Hibernate Standalone, when SpringJPA can be used within Spring - SpringBoot for example

When should we not use Hibernate or Spring Data JPA? Also, when may Spring JDBC template perform better than Hibernate / Spring Data JPA?

Use Spring JDBC only when you need to use much Joins or when you need to use Spring having multiple datasource connections. Generally, avoid JPA for Joins.

But my general advice, use fresh solution—Daobab (http://www.daobab.io). Daobab is my Java and any JPA engine integrator, and I believe it will help much in your tasks :)

Java is a byte-compiled language targeting a platform called the Java Virtual Machine which is stack-based and has some very fast implementations on many platforms.

You can calculate the offset of the element and then compare that with the scroll value like:

$(window).scroll(function() {
   var hT = $('#scroll-to').offset().top,
       hH = $('#scroll-to').outerHeight(),
       wH = $(window).height(),
       wS = $(this).scrollTop();
   if (wS > (hT+hH-wH)){
       console.log('H1 on the view!');
   }
});

Check this Demo Fiddle

Updated Demo Fiddle no alert -- instead FadeIn() the element

Updated code to check if the element is inside the viewport or not. Thus this works whether you are scrolling up or down adding some rules to the if statement:

   if (wS > (hT+hH-wH) && (hT > wS) && (wS+wH > hT+hH)){
       //Do something
   }

Demo Fiddle

You can have a look at the EL (expression language) description here.

Both your code are correct, but I prefer the second one, as comparing a boolean to true or false is redundant.

For better readibility, you can also use the not operator:

<c:if test="${not theBooleanVariable}">It's false!</c:if>

You can use a Scanner and its nextInt() method.
Scanner also has nextLong() for larger integers, if needed.

I also had deleted some values from my development database, but I had the same copy in QA database, so I did a generate script and selected option "type of data to script" to "data only" and selected my table.

Then I got the insert statements with same data, and then I run the script on my development database.

I don't think this one was mentioned yet:

find . -type f -exec sh -c 'echo "${0##*.}"' {} \; | sort | uniq -c

I'm using this method

public Document parseXmlFromString(String xmlString){
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    InputStream inputStream = new    ByteArrayInputStream(xmlString.getBytes());
    org.w3c.dom.Document document = builder.parse(inputStream);
    return document;
}

If you still get this error when sending email: "Failed to authenticate on SMTP server with username "[email protected]" using 3 possible authenticators"

You may try one of these methods:

1. Go to https://accounts.google.com/UnlockCaptcha, click continue and unlock your account for access through other media/sites.

2. Using a double quote password: "your password" <-- this one also solved my problem.

Purpose of view is displaying model. You should use controller to redirect request before creating model and passing it to view. Use Controller.RedirectToAction method for this.

This code is probably good for Python 2. But in Python 3, this will cause an issue, something related to bit encoding. I was trying to make a simple TCP server and encountered the same problem. Encoding worked for me. Try this with sendto command.

clientSocket.sendto(message.encode(),(serverName, serverPort))

Similarly you would use .decode() to receive the data on the UDP server side, if you want to print it exactly as it was sent.

Create a .GPX file with xcode, then specify your coordinates and when your device connected, hit the little arrow button and select your .GPX file. You can create multiple files and add lots of coordinates to single .GPX file in order to make some kind of route.

Doing an if exists ... else ... involves doing two requests minimum (one to check, one to take action). The following approach requires only one where the record exists, two if an insert is required:

DECLARE @RowExists bit
SET @RowExists = 0
UPDATE MyTable SET DataField1 = 'xxx', @RowExists = 1 WHERE Key = 123
IF @RowExists = 0
  INSERT INTO MyTable (Key, DataField1) VALUES (123, 'xxx')

It should be pretty obvious from your question that you're actually just asking about the difference between git merge and git rebase.

So let's suppose you're in the common case - you've done some work on your master branch, and you pull from origin's, which also has done some work. After the fetch, things look like this:

- o - o - o - H - A - B - C (master)
               \
                P - Q - R (origin/master)

If you merge at this point (the default behavior of git pull), assuming there aren't any conflicts, you end up with this:

- o - o - o - H - A - B - C - X (master)
               \             /
                P - Q - R --- (origin/master)

If on the other hand you did the appropriate rebase, you'd end up with this:

- o - o - o - H - P - Q - R - A' - B' - C' (master)
                          |
                          (origin/master)

The content of your work tree should end up the same in both cases; you've just created a different history leading up to it. The rebase rewrites your history, making it look as if you had committed on top of origin's new master branch (R), instead of where you originally committed (H). You should never use the rebase approach if someone else has already pulled from your master branch.

Finally, note that you can actually set up git pull for a given branch to use rebase instead of merge by setting the config parameter branch.<name>.rebase to true. You can also do this for a single pull using git pull --rebase.

On your project folder, open up the bin\Debug subfolder and you'll see the compiled result.

For Decimal /Floating point number only try this

    onChangeMyFloatNumber(text){
let newText = '';
let numbers = '0123456789.';

for (var i=0; i < text.length; i++) {
    if(numbers.indexOf(text[i]) > -1 ) {
        newText = newText + text[i];
        if(text[i]=="."){
          numbers = '0123456789'
        }
    }
    else {
        // your call back function
        alert("please enter numbers only");
    }
}
this.setState({ MyFloatNumber: newText });

}

You could use this sample code:

Uri ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
Ringtone ringtoneSound = RingtoneManager.getRingtone(getApplicationContext(), ringtoneUri)

if (ringtoneSound != null) {
    ringtoneSound.play();
}

As of my knowledge it is impossible to alter/modify a table type.You can create the type with a different name and then drop the old type and modify it to the new name

Credits to jkrajes

As per msdn, it is like 'The user-defined table type definition cannot be modified after it is created'.

extension NSError {
    static func defaultError() -> NSError {
        return NSError(domain: "com.app.error.domain", code: 0, userInfo: [NSLocalizedDescriptionKey: "Something went wrong."])
    }
}

which I can use NSError.defaultError() whenever I don't have valid error object.

let error = NSError.defaultError()
print(error.localizedDescription) //Something went wrong.

None of the answers here worked for me in Chrome. AAverin on GitHub has created some useful Javascript for this purpose and this worked for me:

Just add the js to your code and add the class 'splitForPrint' to your table and it will neatly split the table into multiple pages and add the table header to each page.

The asterisk (*) means "zero or more of the previous item".

If you want to match any single character use

sed -i 's/string-./string-0/g' file.txt

If you want to match any string (i.e. any single character zero or more times) use

sed -i 's/string-.*/string-0/g' file.txt

You're probably better off comparing the fields individually, rather than concatenating the strings.

SELECT t1.*
    FROM Table1 t1
        LEFT JOIN Table2 t2
            ON t1.MAKE = t2.MAKE
                AND t1.MODEL = t2.MODEL
                AND t1.[serial number] = t2.[serial number]
    WHERE t2.MAKE IS NULL

If you have an ES2015 environment (as of this writing: io.js, IE11, Chrome, Firefox, WebKit nightly), then the following will work, and will be fast (viz. O(n)):

function hasDuplicates(array) {
    return (new Set(array)).size !== array.length;
}

If you only need string values in the array, the following will work:

function hasDuplicates(array) {
    var valuesSoFar = Object.create(null);
    for (var i = 0; i < array.length; ++i) {
        var value = array[i];
        if (value in valuesSoFar) {
            return true;
        }
        valuesSoFar[value] = true;
    }
    return false;
}

We use a "hash table" valuesSoFar whose keys are the values we've seen in the array so far. We do a lookup using in to see if that value has been spotted already; if so, we bail out of the loop and return true.

If you need a function that works for more than just string values, the following will work, but isn't as performant; it's O(n²) instead of O(n).

function hasDuplicates(array) {
    var valuesSoFar = [];
    for (var i = 0; i < array.length; ++i) {
        var value = array[i];
        if (valuesSoFar.indexOf(value) !== -1) {
            return true;
        }
        valuesSoFar.push(value);
    }
    return false;
}

The difference is simply that we use an array instead of a hash table for valuesSoFar, since JavaScript "hash tables" (i.e. objects) only have string keys. This means we lose the O(1) lookup time of in, instead getting an O(n) lookup time of indexOf.

This will depend on the database but for SQL Server, this could be achieved as follows:

alter table Example
add NewColumn int identity(1,1)

It seems that you want a list structure with very fast removal and random access by index (not by key) times. An ArrayList gives you the latter and a HashMap or TreeMap give you the former.

There is one structure in Apache Commons Collections that may be what you are looking for, the TreeList. The JavaDoc specifies that it is optimized for quick insertion and removal at any index in the list. If you also need generics though, this will not help you.

I wrote some classes for parsing HTML tags in C#. They are nice and simple if they meet your particular needs.

You can read an article about them and download the source code at http://www.blackbeltcoder.com/Articles/strings/parsing-html-tags-in-c.

There's also an article about a generic parsing helper class at http://www.blackbeltcoder.com/Articles/strings/a-text-parsing-helper-class.

If all else fails, Ctrl-H (search and replace) with "=" in both boxes (in other words, search on = and replace it with the same =). Seems to do the trick.

GMT -03:00 Example

new Date(new Date()-3600*1000*3).toISOString();

You can do what you want, with one (important) caveat: the paths within your symbol can't be styled independently via external CSS -- you can only set the properties for the entire symbol with this method. So, if you have two paths in your symbol and want them to have different fill colors, this won't work, but if you want all your paths to be the same, this should work.

In your html file, you want something like this:

<style>
  .fill-red { fill: red; }
  .fill-blue { fill: blue; }
</style>

<a href="//www.example.com/">
  <svg class="fill-red">
    <use xlink:href="images/icons.svg#example"></use>
  </svg>
</a>

And in the external SVG file you want something like this:

<svg xmlns="http://www.w3.org/2000/svg">
   <symbol id="example" viewBox="0 0 256 256">
    <path d="M120.... />
  </symbol>
</svg>

Swap the class on the svg tag (in your html) from fill-red to fill-blue and ta-da... you have blue instead of red.

You can partially get around the limitation of being able to target the paths separately with external CSS by mixing and matching the external CSS with some in-line CSS on specific paths, since the in-line CSS will take precedence. This approach would work if you're doing something like a white icon against a colored background, where you want to change the color of the background via the external CSS but the icon itself is always white (or vice-versa). So, with the same HTML as before and something like this svg code, you'll get you a red background and a white foreground path:

<svg xmlns="http://www.w3.org/2000/svg">
  <symbol id="example" viewBox="0 0 256 256">
    <path class="background" d="M120..." />
    <path class="icon" style="fill: white;" d="M20..." />
  </symbol>
</svg>

You can make a symbolic link of your module to the standard path, so depmod will see it and you'll be able load it as any other module.

sudo ln -s /path/to/module.ko /lib/modules/`uname -r`
sudo depmod -a
sudo modprobe module

If you add the module name to /etc/modules it will be loaded any time you boot.

Anyway I think that the proper configuration is to copy the module to the standard paths.

It depends on what you mean by "dropped". For TCP sockets, if the other end closes the connection either through close() or the process terminating, you'll find out by reading an end of file, or getting a read error, usually the errno being set to whatever 'connection reset by peer' is by your operating system. For python, you'll read a zero length string, or a socket.error will be thrown when you try to read or write from the socket.

You can't use Bootstrap Jquery based Javascript components in React app, as anything that tries to manipulate DOM outside React is considered bad practice. Here you can read more info about it.

How to include Bootstrap in your React app:

1) Recommended. You can include raw CSS files of Bootstrap as the other answers specify.

2) Take a look at react-bootstrap library. It is exclusively written for React.

3) For Bootstrap 4 there is reactstrap

Bonus

These days I generally avoid Bootstrap libraries which provide ready to use components (above-mentioned react-bootstrap or reactstrap and so on). As you are becoming dependent on the props they take (you can't add custom behavior inside them) and you lose control over DOM that these components produce.

So either use only Bootstrap CSS or leave Bootstrap out. A general rule of thumb is: If are not sure whether you need it, you don't need it. I've seen a lot of applications which include Bootstrap, but using the only small amount of CSS of it and sometimes the most of this CSS is overridden by custom styles.

Use below code to convert String Date to Epoc Timestamp. Note : - Your input Date format should match with SimpleDateFormat.

String inputDateInString= "8/15/2017 12:00:00 AM";
SimpleDateFormat dateFormat = new SimpleDateFormat("MM/dd/yyy hh:mm:ss");

Date parsedDate = dateFormat.parse("inputDateInString");

Timestamp timestamp = new java.sql.Timestamp(parsedDate.getTime());

System.out.println("Timestamp "+ timestamp.getTime());

Once you have markers on the map, you can retrieve the Lat/Long coordinates through the API and use this to set the map's center. You'll first just need to determine which marker you wish to center on - I'll leave that up to you.

// "marker" refers to the Marker object you wish to center on

var latLng = marker.getPosition(); // returns LatLng object
map.setCenter(latLng); // setCenter takes a LatLng object

Info windows are separate objects which are typically bound to a marker, so to open the info window you might do something like this (however it will depend on your code):

var infoWindow = marker.infoWindow; // retrieve the InfoWindow object
infoWindow.open(map); // Trigger the "open()" method

Hope this helps.

If the IDynamicMetaObjectProvider can provide the dynamic member names, you can get them. See GetMemberNames implementation in the apache licensed PCL library Dynamitey (which can be found in nuget), it works for ExpandoObjects and DynamicObjects that implement GetDynamicMemberNames and any other IDynamicMetaObjectProvider who provides a meta object with an implementation of GetDynamicMemberNames without custom testing beyond is IDynamicMetaObjectProvider.

After getting the member names it's a little more work to get the value the right way, but Impromptu does this but it's harder to point to just the interesting bits and have it make sense. Here's the documentation and it is equal or faster than reflection, however, unlikely to be faster than a dictionary lookup for expando, but it works for any object, expando, dynamic or original - you name it.

Call list() on the dictionary instead:

keys = list(test)

In Python 3, the dict.keys() method returns a dictionary view object, which acts as a set. Iterating over the dictionary directly also yields keys, so turning a dictionary into a list results in a list of all the keys:

>>> test = {'foo': 'bar', 'hello': 'world'}
>>> list(test)
['foo', 'hello']
>>> list(test)[0]
'foo'

Just

var ks = $('#keywords').val().split(/\r\n|\n|\r/);

will work perfectly.

Be sure \r\n is placed at the leading of the RegExp string, cause it will be tried first.

Continuing the evolution of this solution I've upped the ante by adding support for multiple root selections and deeper nested selections. This is a further development of JavierCane's solution (which in turn built on tarheel's).

/**_x000D_
 * "on edit" event handler_x000D_
 *_x000D_
 * Based on JavierCane's answer in _x000D_
 * _x000D_
 *   http://stackoverflow.com/questions/21744547/how-do-you-do-dynamic-dependent-drop-downs-in-google-sheets_x000D_
 *_x000D_
 * Each set of options has it own sheet named after the option. The _x000D_
 * values in this sheet are used to populate the drop-down._x000D_
 *_x000D_
 * The top row is assumed to be a header._x000D_
 *_x000D_
 * The sub-category column is assumed to be the next column to the right._x000D_
 *_x000D_
 * If there are no sub-categories the next column along is cleared in _x000D_
 * case the previous selection did have options._x000D_
 */_x000D_
_x000D_
function onEdit() {_x000D_
_x000D_
  var NESTED_SELECTS_SHEET_NAME = "Sitemap"_x000D_
  var NESTED_SELECTS_ROOT_COLUMN = 1_x000D_
  var SUB_CATEGORY_COLUMN = NESTED_SELECTS_ROOT_COLUMN + 1_x000D_
  var NUMBER_OF_ROOT_OPTION_CELLS = 3_x000D_
  var OPTION_POSSIBLE_VALUES_SHEET_SUFFIX = ""_x000D_
  _x000D_
  var activeSpreadsheet = SpreadsheetApp.getActiveSpreadsheet()_x000D_
  var activeSheet = SpreadsheetApp.getActiveSheet()_x000D_
  _x000D_
  if (activeSheet.getName() !== NESTED_SELECTS_SHEET_NAME) {_x000D_
  _x000D_
    // Not in the sheet with nested selects, exit!_x000D_
    return_x000D_
  }_x000D_
  _x000D_
  var activeCell = SpreadsheetApp.getActiveRange()_x000D_
  _x000D_
  // Top row is the header_x000D_
  if (activeCell.getColumn() > SUB_CATEGORY_COLUMN || _x000D_
      activeCell.getRow() === 1 ||_x000D_
      activeCell.getRow() > NUMBER_OF_ROOT_OPTION_CELLS + 1) {_x000D_
_x000D_
    // Out of selection range, exit!_x000D_
    return_x000D_
  }_x000D_
  _x000D_
  var sheetWithActiveOptionPossibleValues = activeSpreadsheet_x000D_
    .getSheetByName(activeCell.getValue() + OPTION_POSSIBLE_VALUES_SHEET_SUFFIX)_x000D_
  _x000D_
  if (sheetWithActiveOptionPossibleValues === null) {_x000D_
  _x000D_
    // There are no further options for this value, so clear out any old_x000D_
    // values_x000D_
    activeSheet_x000D_
      .getRange(activeCell.getRow(), activeCell.getColumn() + 1)_x000D_
      .clearDataValidations()_x000D_
      .clearContent()_x000D_
      _x000D_
    return_x000D_
  }_x000D_
  _x000D_
  // Get all possible values_x000D_
  var activeOptionPossibleValues = sheetWithActiveOptionPossibleValues_x000D_
    .getSheetValues(1, 1, -1, 1)_x000D_
  _x000D_
  var possibleValuesValidation = SpreadsheetApp.newDataValidation()_x000D_
  possibleValuesValidation.setAllowInvalid(false)_x000D_
  possibleValuesValidation.requireValueInList(activeOptionPossibleValues, true)_x000D_
  _x000D_
  activeSheet_x000D_
    .getRange(activeCell.getRow(), activeCell.getColumn() + 1)_x000D_
    .setDataValidation(possibleValuesValidation.build())_x000D_
    _x000D_
} // onEdit()

As Javier says:

• Create the sheet where you'll have the nested selectors
• Go to the "Tools" > "Script Editor…" and select the "Blank project" option
• Paste the code attached to this answer
• Modify the constants at the top of the script setting up your values and save it
• Create one sheet within this same document for each possible value of the "root selector". They must be named as the value + the specified suffix.

And if you wanted to see it in action I've created a demo sheet and you can see the code if you take a copy.

You can add a 1 GB swap to your instance with these commands:

sudo dd if=/dev/zero of=/swapfile bs=1M count=1024
sudo mkswap /swapfile
sudo swapon /swapfile

To enable it by default after reboot, add this line to /etc/fstab:

/swapfile swap swap defaults 0 0

One more way is to extend the application (as my application was to inherit and customize the parent). It invokes the parent and its commandlinerunner automatically.

@SpringBootApplication
public class ChildApplication extends ParentApplication{
    public static void main(String[] args) {
        SpringApplication.run(ChildApplication.class, args);
    }
}

You can use $_GET for url params, or $_POST for post params, but the $_REQUEST contains the parameters from $_GET $_POST and $_COOKIE, if you want to hide the URI parameter from the user you can convert it to a session variable like so:

<?php

session_start();
if (isset($_REQUEST['param']) && !isset($_SESSION['param'])) {

    // Store all parameters received
    $_SESSION['param'] = $_REQUEST['param'];

    // Redirect without URI parameters
    header('Location: /file.php');
    exit;
}
?>
<html>
<body>
<?php
  echo $_SESSION['param'];
?>
</body>
</html>

EDIT

use $_SERVER['PHP_SELF'] to get the current file name or $_SERVER['REQUEST_URI'] to get the requested URI

As others have said, it's an initialisation list. You can use it for two things:

1. Calling base class constructors
2. Initialising member variables before the body of the constructor executes.

For case #1, I assume you understand inheritance (if that's not the case, let me know in the comments). So you are simply calling the constructor of your base class.

For case #2, the question may be asked: "Why not just initialise it in the body of the constructor?" The importance of the initialisation lists is particularly evident for const members. For instance, take a look at this situation, where I want to initialise m_val based on the constructor parameter:

class Demo
{
    Demo(int& val) 
     {
         m_val = val;
     }
private:
    const int& m_val;
};

By the C++ specification, this is illegal. We cannot change the value of a const variable in the constructor, because it is marked as const. So you can use the initialisation list:

class Demo
{
    Demo(int& val) : m_val(val)
     {
     }
private:
    const int& m_val;
};

That is the only time that you can change a const member variable. And as Michael noted in the comments section, it is also the only way to initialise a reference that is a class member.

Outside of using it to initialise const member variables, it seems to have been generally accepted as "the way" of initialising variables, so it's clear to other programmers reading your code.

Change the number 6 to whatever your total length needs to be:

SELECT REPLICATE('0',6-LEN(EmployeeId)) + EmployeeId

If the column is an INT, you can use RTRIM to implicitly convert it to a VARCHAR

SELECT REPLICATE('0',6-LEN(RTRIM(EmployeeId))) + RTRIM(EmployeeId)

And the code to remove these 0s and get back the 'real' number:

SELECT RIGHT(EmployeeId,(LEN(EmployeeId) - PATINDEX('%[^0]%',EmployeeId)) + 1)

Adding another answer that uses switch... There are more comprehensive examples out there, but this will give you the idea.

In example, t becomes the specified data type within each case scope. Note, you have to provide a case for only one type at a type, otherwise t remains an interface.

package main

import "fmt"

func main() {
    var val interface{} // your starting value
    val = 4

    var i int // your final value

    switch t := val.(type) {
    case int:
        fmt.Printf("%d == %T\n", t, t)
        i = t
    case int8:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int16:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int32:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case int64:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case bool:
        fmt.Printf("%t == %T\n", t, t)
        // // not covertible unless...
        // if t {
        //  i = 1
        // } else {
        //  i = 0
        // }
    case float32:
        fmt.Printf("%g == %T\n", t, t)
        i = int(t) // standardizes across systems
    case float64:
        fmt.Printf("%f == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint8:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint16:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint32:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case uint64:
        fmt.Printf("%d == %T\n", t, t)
        i = int(t) // standardizes across systems
    case string:
        fmt.Printf("%s == %T\n", t, t)
        // gets a little messy...
    default:
        // what is it then?
        fmt.Printf("%v == %T\n", t, t)
    }

    fmt.Printf("i == %d\n", i)
}

db.messages.find( { headers : { From: "[email protected]" } } )

This queries for documents where headers equals { From: ... }, i.e. contains no other fields.

db.messages.find( { 'headers.From': "[email protected]" } )

This only looks at the headers.From field, not affected by other fields contained in, or missing from, headers.

Dot-notation docs

Different people who come to this question mean different things by a popup box. I highly recommend reading the Temporary Views documentation. My answer is largely a summary of this and other related documentation.

Alert (show me an example)

Alerts display a title and an optional message. The user must acknowledge it (a one-button alert) or make a simple choice (a two-button alert) before going on. You create an alert with a UIAlertController.

It is worth quoting the documentation's warning and advice about creating unnecessary alerts.

Notes:

• See also Alert Views, but starting in iOS 8 UIAlertView was deprecated. You should use UIAlertController to create alerts now.
• iOS Fundamentals: UIAlertView and UIAlertController (tutorial)

Action Sheet (show me an example)

Action Sheets give the user a list of choices. They appear either at the bottom of the screen or in a popover depending on the size and orientation of the device. As with alerts, a UIAlertController is used to make an action sheet. Before iOS 8, UIActionSheet was used, but now the documentation says:

Important: UIActionSheet is deprecated in iOS 8. (Note that UIActionSheetDelegate is also deprecated.) To create and manage action sheets in iOS 8 and later, instead use UIAlertController with a preferredStyle of UIAlertControllerStyleActionSheet.

Modal View (show me an example)

A modal view is a self-contained view that has everything it needs to complete a task. It may or may not take up the full screen. To create a modal view, use a UIPresentationController with one of the Modal Presentation Styles.

See also

• Presenting View Controllers from Other View Controllers
• Modal Contexts

Popover (show me an example)

A Popover is a view that appears when a user taps on something and disappears when tapping off it. It has an arrow showing the control or location from where the tap was made. The content can be just about anything you can put in a View Controller. You make a popover with a UIPopoverPresentationController. (Before iOS 8, UIPopoverController was the recommended method.)

In the past popovers were only available on the iPad, but starting with iOS 8 you can also get them on an iPhone (see here, here, and here).

See also

• View Controllers: Popovers

Notifications

Notifications are sounds/vibrations, alerts/banners, or badges that notify the user of something even when the app is not running in the foreground.

See also

• Local and Remote Notification Programming Guide
• Simple, interactive notifications in iOS 8

A note about Android Toasts

In Android, a Toast is a short message that displays on the screen for a short amount of time and then disappears automatically without disrupting user interaction with the app.

People coming from an Android background want to know what the iOS version of a Toast is. Some examples of these questions can he found here, here, here, and here. The answer is that there is no equivalent to a Toast in iOS. Various workarounds that have been presented include:

• Make your own with a subclassed UIView
• Import a third party project that mimics a Toast
• Use a buttonless Alert with a timer

However, my advice is to stick with the standard UI options that already come with iOS. Don't try to make your app look and behave exactly the same as the Android version. Think about how to repackage it so that it looks and feels like an iOS app.

Why not use .Except()

// Create the IEnumerable data sources.
string[] names1 = System.IO.File.ReadAllLines(@"../../../names1.txt");
string[] names2 = System.IO.File.ReadAllLines(@"../../../names2.txt");
// Create the query. Note that method syntax must be used here.
IEnumerable<string> differenceQuery =   names1.Except(names2);
// Execute the query.
Console.WriteLine("The following lines are in names1.txt but not names2.txt");
foreach (string s in differenceQuery)
     Console.WriteLine(s);

http://msdn.microsoft.com/en-us/library/bb397894.aspx

After browsing search engines for a few hours I came across a site with a great ERD example here: http://www.exploredatabase.com/2016/07/description-about-weak-entity-sets-in-DBMS.html

I've recreated the ERD. Unfortunately they did not specify the primary key of the weak entity.

If the building could only have one and only one apartment, then it seems the partial discriminator room number would not be created (i.e. discarded).

Personally this post helped me to solve this issue by moving the google() to the top of the repositories.

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

int main()
{
    char string[] = "Strlwr in C";

    printf("%s\n",strlwr(string));

    return  0;
}

use strlwr for lowering the case

This has drastically changed.

http://searchengineland.com/bing-offers-recommendations-for-seo-friendly-ajax-suggests-html5-pushstate-152946

If you use: $locationProvider.html5Mode(true); you are set.

No more rendering pages.

Pod File Install Steps

sudo gem install -n /usr/local/bin cocoapods

pod setup

cd ~/Path/To/Folder/Containing/ShowTracker


touch podfile
open -a Xcode Podfile // TO OPEN IT IN XCODE 
OPEN -e podfile   // TO OPEN IT IN TEXT EDITOR
pod install  // TO INSTALL A NEW POD
pod update // TO UPDATE ALL PODS

Decision with Interfaces and Callbacks. Create Interface with select and unselect states:

public interface ItemTouchHelperViewHolder {
    /**
     * Called when the {@link ItemTouchHelper} first registers an item as being moved or swiped.
     * Implementations should update the item view to indicate it's active state.
     */
    void onItemSelected();


    /**
     * Called when the {@link ItemTouchHelper} has completed the move or swipe, and the active item
     * state should be cleared.
     */
    void onItemClear();
}

Implement interface in ViewHolder:

   public static class ItemViewHolder extends RecyclerView.ViewHolder implements
            ItemTouchHelperViewHolder {

        public LinearLayout container;
        public PositionCardView content;

        public ItemViewHolder(View itemView) {
            super(itemView);
            container = (LinearLayout) itemView;
            content = (PositionCardView) itemView.findViewById(R.id.content);

        }

               @Override
    public void onItemSelected() {
        /**
         * Here change of item
         */
        container.setBackgroundColor(Color.LTGRAY);
    }

    @Override
    public void onItemClear() {
        /**
         * Here change of item
         */
        container.setBackgroundColor(Color.WHITE);
    }
}

Run state change on Callback:

public class ItemTouchHelperCallback extends ItemTouchHelper.Callback {

    private final ItemTouchHelperAdapter mAdapter;

    public ItemTouchHelperCallback(ItemTouchHelperAdapter adapter) {
        this.mAdapter = adapter;
    }

    @Override
    public boolean isLongPressDragEnabled() {
        return true;
    }

    @Override
    public boolean isItemViewSwipeEnabled() {
        return true;
    }

    @Override
    public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        int dragFlags = ItemTouchHelper.UP | ItemTouchHelper.DOWN;
        int swipeFlags = ItemTouchHelper.END;
        return makeMovementFlags(dragFlags, swipeFlags);
    }

    @Override
    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
        ...
    }

    @Override
    public void onSwiped(final RecyclerView.ViewHolder viewHolder, int direction) {
        ...
    }

    @Override
    public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionState) {
        if (actionState != ItemTouchHelper.ACTION_STATE_IDLE) {
            if (viewHolder instanceof ItemTouchHelperViewHolder) {
                ItemTouchHelperViewHolder itemViewHolder =
                        (ItemTouchHelperViewHolder) viewHolder;
                itemViewHolder.onItemSelected();
            }
        }
        super.onSelectedChanged(viewHolder, actionState);
    }

    @Override
    public void clearView(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
        super.clearView(recyclerView, viewHolder);
        if (viewHolder instanceof ItemTouchHelperViewHolder) {
            ItemTouchHelperViewHolder itemViewHolder =
                    (ItemTouchHelperViewHolder) viewHolder;
            itemViewHolder.onItemClear();
        }
    }   
}

Create RecyclerView with Callback (example):

mAdapter = new BuyItemsRecyclerListAdapter(MainActivity.this, positionsList, new ArrayList<BuyItem>());
positionsList.setAdapter(mAdapter);
positionsList.setLayoutManager(new LinearLayoutManager(this));
ItemTouchHelper.Callback callback = new ItemTouchHelperCallback(mAdapter);
mItemTouchHelper = new ItemTouchHelper(callback);
mItemTouchHelper.attachToRecyclerView(positionsList);

See more in article of iPaulPro: https://medium.com/@ipaulpro/drag-and-swipe-with-recyclerview-6a6f0c422efd#.6gh29uaaz

This com.mysql.jdbc.exceptions.jdbc4.CommunicationsException exception occurs if your database connection is idle for long time.

This idle connection returns true on connection.isClosed(); but if we try to execute statement then it will fire this exception so I will suggest to go with database pooling.

POJO:- POJO is a Java object not bound by any restriction other than those forced by the Java Language Specification.

Properties of POJO

1. All properties must be public setter and getter methods
2. All instance variables should be private
3. Should not Extend prespecified classes.
4. Should not Implement prespecified interfaces.
5. Should not contain prespecified annotations.
6. It may not have any argument constructors

Example of POJO

public class POJO {

    private String value;

    public String getValue() {
         return value;
    }

    public void setValue(String value) {
        this.value = value;
    }
}

I ran into this issue and my problem was a bit more involved... Originally I was trying to restore a SQL Server 2000 backup to SQL Server 2012. Of course this didn't work cause SQL server 2012 only supports backups from 2005 and upwards .

So, I restored the database on a SQL Server 2008 machine. Once this was done - I copied the database over to restore on SQL Server 2012 - and it failed with the following error

The media family on device 'C:\XXXXXXXXXXX.bak' is incorrectly formed. SQL Server cannot process this media family. RESTORE HEADERONLY is terminating abnormally. (Microsoft SQL Server, Error: 3241)

After a lot of research I found that I had skipped a step - I had to go back to the SQL Server 2008 machine and Right Click On the database(that I wanted to backup)> Properties > Options > Make sure compatibility level is set to SQL Server 2008. > Save

And then re-create the backup - After this I was able to restore to SQL Server 2012.

<html>
<head>
    <meta http-equiv="content-type" content="text/html; charset=windows-1252"/>
    <title>DIN A4 Page</title>
    <style type="text/css">
        @page { size: 21cm 29.7cm; margin: 2cm }
        p { line-height: 120%; text-align: justify; background: transparent }
    </style>
</head>
<body>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim
ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. Duis aute irure dolor in
reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.</p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim
ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. 
</p>
</body>
</html>

The problem is that you define it inside the class, which

a) means the second argument is implicit (this) and

b) it will not do what you want it do, namely extend std::ostream.

You have to define it as a free function:

class A { /* ... */ };
std::ostream& operator<<(std::ostream&, const A& a);

for me the fix was to add the injected class as inner class in the one annotated with @ConfigurationProperites, because I think you need @Component to inject properties.

If str is null, undefined or 0, this code will set it to "hai"

function(nodeBox, str) {
  str = str || "hai";
.
.
.

If you also need to pass 0, you can use:

function(nodeBox, str) {
  if (typeof str === "undefined" || str === null) { 
    str = "hai"; 
  }
.
.
.

You can do with this commands (without Bootstrap).

Array.from(document.querySelectorAll('.search-field')).forEach(field => {_x000D_
  field.querySelector('span').addEventListener('click', e => {_x000D_
    field.querySelector('input').value = '';_x000D_
  });_x000D_
});

:root {_x000D_
  --theme-color: teal;_x000D_
}_x000D_
_x000D_
.wrapper {_x000D_
  width: 80%;_x000D_
  margin: 0 auto;_x000D_
}_x000D_
_x000D_
div {_x000D_
  position: relative;_x000D_
}_x000D_
_x000D_
input {_x000D_
  background:none;_x000D_
  outline:none;_x000D_
  display: inline-block;_x000D_
  width: 100%;_x000D_
  margin: 8px 0;_x000D_
  padding: 13px 15px;_x000D_
  padding-right: 42.5px;_x000D_
  border: 1px solid var(--theme-color);_x000D_
  border-radius: 5px;_x000D_
  box-sizing: border-box;_x000D_
}_x000D_
_x000D_
span {_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  right: 0;_x000D_
  margin: 8px 0;_x000D_
  padding: 13px 15px;_x000D_
  color: var(--theme-color);_x000D_
  font-weight: bold;_x000D_
  cursor: pointer;_x000D_
}_x000D_
span:after {_x000D_
  content: '\2716';_x000D_
}

<div class="wrapper">_x000D_
  <div class="search-field">_x000D_
    <input placeholder="Search..." />_x000D_
    <span></span>_x000D_
  </div>_x000D_
</div>

Another option is to use the onclick attribute of the button:

<button disabled="disabled" onClick="location.href='www.stackoverflow.com'" >ABC</button>

This works, however, the user won't see the link displayed on hover as they would if it were inside the element.

In this case...

var John: Person!

it means, that initially John will have nil value, it will be set and once set will never be nil-led again. Therefore for convenience I can use the easier syntax for accessing an optional var because this is an "Implicitly unwrapped optional"

Updated Answer:

Since some of the classes, in the original answer, are deprecated in the newer version of Apache HTTP Components, I'm posting this update.

By the way, you can access the full documentation for more examples here.

HttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost("http://www.a-domain.com/foo/");

// Request parameters and other properties.
List<NameValuePair> params = new ArrayList<NameValuePair>(2);
params.add(new BasicNameValuePair("param-1", "12345"));
params.add(new BasicNameValuePair("param-2", "Hello!"));
httppost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));

//Execute and get the response.
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();

if (entity != null) {
    try (InputStream instream = entity.getContent()) {
        // do something useful
    }
}

Original Answer:

I recommend to use Apache HttpClient. its faster and easier to implement.

HttpPost post = new HttpPost("http://jakarata.apache.org/");
NameValuePair[] data = {
    new NameValuePair("user", "joe"),
    new NameValuePair("password", "bloggs")
};
post.setRequestBody(data);
// execute method and handle any error responses.
...
InputStream in = post.getResponseBodyAsStream();
// handle response.

for more information check this url: http://hc.apache.org/

I consider delegates to be Anonymous Interfaces. In many cases you can use them whenever you need an interface with a single method, but you don't want the overhead of defining that interface.

I recently ran into an issue when using pip's -I flag that I wanted to document somewhere:

-I will not uninstall the existing package before proceeding; it will just install it on top of the old one. This means that any files that should be deleted between versions will instead be left in place. This can cause weird behavior if those files share names with other installed modules.

For example, let's say there's a package named package. In one of packages files, they use import datetime. Now, in [email protected], this points to the standard library datetime module, but in [email protected], they added a local datetime.py as a replacement for the standard library version (for whatever reason).

Now lets say I run pip install package==3.0.0, but then later realize that I actually wanted version 2.0.0. If I now run pip install -I package==2.0.0, the old datetime.py file will not be removed, so any calls to import datetime will import the wrong module.

In my case, this manifested with strange syntax errors because the newer version of the package added a file that was only compatible with Python 3, and when I downgraded package versions to support Python 2, I continued importing the Python-3-only module.

Based on this, I would argue that uninstalling the old package is always preferable to using -I when updating installed package versions.

In a normal array you have to shuffle down all the array entries above 2 and then resize it using the Resize method. You might be better off using an ArrayList.

Depends a lot on your definition of what a "character" is. If "rune equals a character " is OK for your task (generally it isn't) then the answer by VonC is perfect for you. Otherwise, it should be probably noted, that there are few situations where the number of runes in a Unicode string is an interesting value. And even in those situations it's better, if possible, to infer the count while "traversing" the string as the runes are processed to avoid doubling the UTF-8 decode effort.

You are comparing two objects for equality. The snippet:

if (obj == this) {     return true; } 

is a quick test that can be read

"If the object I'm comparing myself to is me, return true"

. You usually see this happen in equals methods so they can exit early and avoid other costly comparisons.

Somthing like this should workL

SELECT BookingId, StartTime
FROM Booking
WHERE StartTime between dateadd(hour, -1, getdate()) and getdate()

Just use it:

function getWeekDayNames(format = 'short', locale = 'ru') {_x000D_
  const names = [];_x000D_
  const date = new Date('2020-05-24');_x000D_
  let days = 7;_x000D_
_x000D_
  while (days !== 0) {_x000D_
    date.setDate(date.getDate() + 1);_x000D_
    names.push(date.toLocaleDateString(locale, { weekday: format }));_x000D_
    days--;_x000D_
  }_x000D_
_x000D_
  return names;_x000D_
}

About formats you can read here Documentation DateTimeFormat

That might be because you would be using functional component and in that you would be using these '{}' braces instead of '()' Example : const Main = () => ( ... then your code ... ). Basically, you will have to wrap up your code within these brackets '()'.

I came across this question as I had exact same problem. Although accepted answer works good but with matplotlib version 2.1.0, it is pretty straight forward to have two scatter plots in one plot without using a reference to Axes

import matplotlib.pyplot as plt

plt.scatter(x,y, c='b', marker='x', label='1')
plt.scatter(x, y, c='r', marker='s', label='-1')
plt.legend(loc='upper left')
plt.show()

Wget currently only supports x-www-form-urlencoded data. --post-file is not for transmitting files as form attachments, it expects data with the form: key=value&otherkey=example.

--post-data and --post-file work the same way: the only difference is that --post-data allows you to specify the data in the command line, while --post-file allows you to specify the path of the file that contain the data to send.

Here's the documentation:

 --post-data=string
       --post-file=file
           Use POST as the method for all HTTP requests and send the specified data
           in the request body.  --post-data sends string as data, whereas
           --post-file sends the contents of file.  Other than that, they work in
           exactly the same way. In particular, they both expect content of the
           form "key1=value1&key2=value2", with percent-encoding for special
           characters; the only difference is that one expects its content as a
           command-line parameter and the other accepts its content from a file. In
           particular, --post-file is not for transmitting files as form
           attachments: those must appear as "key=value" data (with appropriate
           percent-coding) just like everything else. Wget does not currently
           support "multipart/form-data" for transmitting POST data; only
           "application/x-www-form-urlencoded". Only one of --post-data and
           --post-file should be specified.

Regarding your authentication token, it should either be provided in the header, in the path of the url, or in the data itself. This must be indicated somewhere in the documentation of the service you use. In a POST request, as in a GET request, you must specify the data using keys and values. This way the server will be able to receive multiple information with specific names. It's similar with variables.

Hence, you can't just send a magic token to the server, you also need to specify the name of the key. If the key is "token", then it should be token=YOUR_TOKEN.

wget --post-data 'user=foo&password=bar' http://example.com/auth.php

Also, you should consider using curl if you can because it is easier to send files using it. There are many examples on the Internet for that.

Could always do:

db.foo.find().forEach(function(f){print(tojson(f, '', true));});

To get that compact view.

Also, I find it very useful to limit the fields returned by the find so:

db.foo.find({},{name:1}).forEach(function(f){print(tojson(f, '', true));});

which would return only the _id and name field from foo.

You could use alias python="/usr/bin/python2.7":

bash-3.2$ alias
bash-3.2$ python
Python 2.7.6 (v2.7.6:3a1db0d2747e, Nov 10 2013, 00:42:54) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> ^D
bash-3.2$ alias python="/usr/bin/python3.3"
bash-3.2$ python
Python 3.3.3 (v3.3.3:c3896275c0f6, Nov 16 2013, 23:39:35) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

Some version working

<div class="hidden-xs">Only Mobile hidden</div>
<div class="visible-xs">Only Mobile visible</div>

There are many ways of doing it, I'm listing a few here:

1. Use SizedBox if you want to set some specific space

   Row(
     children: <Widget>[
       Text("1"),
       SizedBox(width: 50), // give it width
       Text("2"),
     ],
   )
   

   

2. Use Spacer if you want both to be as far apart as possible.

   Row(
     children: <Widget>[
       Text("1"),
       Spacer(), // use Spacer
       Text("2"),
     ],
   )
   

   

3. Use mainAxisAlignment according to your needs:

   Row(
     mainAxisAlignment: MainAxisAlignment.spaceEvenly, // use whichever suits your need
     children: <Widget>[
       Text("1"),
       Text("2"),
     ],
   )
   

   

4. Use Wrap instead of Row and give some spacing

   Wrap(
     spacing: 100, // set spacing here
     children: <Widget>[
       Text("1"),
       Text("2"),
     ],
   )
   

   

5. Use Wrap instead of Row and give it alignment

   Wrap(
     alignment: WrapAlignment.spaceAround, // set your alignment
     children: <Widget>[
       Text("1"),
       Text("2"),
     ],
   )
   

   

Destination Host Unreachable

This message indicates one of two problems: either the local system has no route to the desired destination, or a remote router reports that it has no route to the destination.

If the message is simply "Destination Host Unreachable," then there is no route from the local system, and the packets to be sent were never put on the wire.

If the message is "Reply From < IP address >: Destination Host Unreachable," then the routing problem occurred at a remote router, whose address is indicated by the "< IP address >" field.

Request Timed Out

This message indicates that no Echo Reply messages were received within the default time of 1 second. This can be due to many different causes; the most common include network congestion, failure of the ARP request, packet filtering, routing error, or a silent discard.

For more info Refer: http://technet.microsoft.com/en-us/library/cc940095.aspx

equation of line is y-y1 = m(x-x1)

here m is y2-y1 / x2-x1

now put m in equation and put condition on y < m(x-x1) + y1 then it is left side point

eg.

for i in rows:

  for j in cols:

    if j>m(i-a)+b:

      image[i][j]=0

DECLARE @first AS INT = 1
DECLARE @last AS INT = 300

WHILE(@first <= @last)
BEGIN
    INSERT INTO tblFoo VALUES(@first)
    SET @first += 1
END

All of these examples use an external module, but you can achieve the same result using just the datetime module, as also presented in this SO answer:

from datetime import datetime
from datetime import timezone

dt = datetime.now()
dt.replace(tzinfo=timezone.utc)

print(dt.replace(tzinfo=timezone.utc).isoformat())
'2017-01-12T22:11:31+00:00'

Fewer dependencies and no pytz issues.

NOTE: If you wish to use this with python3 and python2, you can use this as well for the timezone import (hardcoded for UTC):

try:
    from datetime import timezone
    utc = timezone.utc
except ImportError:
    #Hi there python2 user
    class UTC(tzinfo):
        def utcoffset(self, dt):
            return timedelta(0)
        def tzname(self, dt):
            return "UTC"
        def dst(self, dt):
            return timedelta(0)
    utc = UTC()

try{
                ResponseBody response = ((HttpException) t).response().errorBody();
                JSONObject json = new JSONObject( new String(response.bytes()) );
                errMsg = json.getString("message");
            }catch(JSONException e){
                return t.getMessage();
            }
            catch(IOException e){
                return t.getMessage();
            }

C++17, cross-platform: Using std::filesystem::exists and std::filesystem::is_regular_file.

#include <filesystem> // C++17
#include <fstream>
#include <iostream>
namespace fs = std::filesystem;

bool CreateFile(const fs::path& filePath, const std::string& content)
{
    try
    {
        if (fs::exists(filePath))
        {
            std::cout << filePath << " already exists.";
            return false;
        }
        if (!fs::is_regular_file(filePath))
        {
            std::cout << filePath << " is not a regular file.";
            return false;
        }
    }
    catch (std::exception& e)
    {
        std::cerr << __func__ << ": An error occurred: " << e.what();
        return false;
    }
    std::ofstream file(filePath);
    file << content;
    return true;
}
int main()
{
    if (CreateFile("path/to/the/file.ext", "Content of the file"))
    {
        // Your business logic.
    }
}

I got the same error but I solved by using regsvr32.exe in C:\Windows\SysWOW64. Because we use x64 system. So if your machine is also x64, the ocx/dll must registered also with regsvr32 x64 version

Thats not possible. PHP is a Server side language and JavaScript client side and they don't really know a lot about each other. You would need a Server sided JavaScript Interpreter (like Aptanas Jaxer). Maybe what you actually want to do is to use an Ajax like Architecture (JavaScript function calls PHP script asynchronously and does something with the result).

<td onClick= loadxml()><i>Click for Details</i></td>

function loadxml()
{
    result = loadScriptWithAjax("/script.php?event=button_clicked");
    alert(result);
}

// script.php
<?php
    if($_GET['event'] == 'button_clicked')
        echo "\"You clicked a button\"";
?>

phpMyAdmin provides a GUI for this within the structure view of a table. Check to select the column you want to move and click the change action at the bottom of the column list. You can then change all of the column properties and you'll find the 'move column' function at the far right of the screen.

Of course this is all just building the queries in the perfectly good top answer but GUI fans might appreciate the alternative.

my phpMyAdmin version is 4.1.7

No, there is no such printf width specifier to print floating-point with maximum precision. Let me explain why.

The maximum precision of float and double is variable, and dependent on the actual value of the float or double.

Recall float and double are stored in sign.exponent.mantissa format. This means that there are many more bits used for the fractional component for small numbers than for big numbers.

For example, float can easily distinguish between 0.0 and 0.1.

float r = 0;
printf( "%.6f\n", r ) ; // 0.000000
r+=0.1 ;
printf( "%.6f\n", r ) ; // 0.100000

But float has no idea of the difference between 1e27 and 1e27 + 0.1.

r = 1e27;
printf( "%.6f\n", r ) ; // 999999988484154753734934528.000000
r+=0.1 ;
printf( "%.6f\n", r ) ; // still 999999988484154753734934528.000000

This is because all the precision (which is limited by the number of mantissa bits) is used up for the large part of the number, left of the decimal.

The %.f modifier just says how many decimal values you want to print from the float number as far as formatting goes. The fact that the accuracy available depends on the size of the number is up to you as the programmer to handle. printf can't/doesn't handle that for you.

This will hide the div after 1 second (1000 milliseconds).

setTimeout(function() {_x000D_
    $('#mydiv').fadeOut('fast');_x000D_
}, 1000); // <-- time in milliseconds

#mydiv{_x000D_
    width: 100px;_x000D_
    height: 100px;_x000D_
    background: #000;_x000D_
    color: #fff;_x000D_
    text-align: center;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="mydiv">myDiv</div>

If you just want to hide without fading, use hide().

Don't fight the system. If your layouts become too complex to manage using Interface Builder + perhaps some simple configuration code, do the layouts manually in a simpler way using layoutSubviews - that's what it's for! Everything else will amount to hacks.

Create a UIButton subclass and override its layoutSubviews method to align your text & image programmatically. Or use something like https://github.com/nickpaulson/BlockKit/blob/master/Source/UIView-BKAdditions.h so you can implement layoutSubviews using a block.

I'd like to add to @MBK's answer. Although I found @MBK's answer to be very helpful in solving a similar problem, it'd be better if @MBK included a screenshot of how to filter a particular column.

Try js-mobile-console

MobileConsole can be embedded within any page for debugging. It will catch errors and behave exactly as the native JavaScript console in the browser. It also outputs all the logs you've written via an API of window.console.

This has been driving me crazy for literally weeks. I found a solution that will work for me that includes:

1. Non-fixed column widths - they shrink and grow on window resizing.
2. Table has a horizontal scroll-bar when needed, but not when it isn't.
3. Number of columns is irrelevant - it will size to however many columns you need it to.
4. Not all columns need to be the same width.
5. Header goes all the way to the end of the right scrollbar.
6. No javascript!

...but there are a couple of caveats:

1. The vertical scrollbar is not visible until you scroll all the way to the right. Given that most people have scroll wheels, this was an acceptable sacrifice.

2. The width of the scrollbar must be known. On my website I set the scrollbar widths (I'm not overly concerned with older, incompatible browsers), so I can then calculate div and table widths that adjust based on the scrollbar.

Instead of posting my code here, I'll post a link to the jsFiddle.

Fixed header table + scroll left/right.

Use -1 as the start position:

INSTR('JD-EQ-0001', '-', -1)

I think the strictSSL: false should (should have worked, even in 2013) work. So in short are three possible ways:

1. (obvious) Get your CA to renew the certificate, and put it on your server!
2. Change the default settings of your request object:
   
   const myRequest = require('request').defaults({strictSSL: false})
   
   Many modules that use node-request internally also allow a request-object to be injected, so you can make them use your modified instance.
3. (not recommended) Override all certificate checks for all HTTP(S) agent connections by setting the environment variable NODE_TLS_REJECT_UNAUTHORIZED=0 for the Node.js process.

Based on the existing answers, here's a step-by-step guide to sending automated e-mails over SMTP, using a GMail account, from the command line, without disclosing the password.

Requirements

First, install the following software packages:

• Expect
• OpenSSL
• Core Utils (base64)

These instructions assume a Linux operating system, but should be reasonably easy to port to Windows (via Cygwin or native equivalents), or other operating system.

Authentication

Save the following shell script as authentication.sh:

#!/bin/bash

# Asks for a username and password, then spits out the encoded value for
# use with authentication against SMTP servers.

echo -n "Email (shown): "
read email
echo -n "Password (hidden): "
read -s password
echo

TEXT="\0$email\0$password"

echo -ne $TEXT | base64

Make it executable and run it as follows:

chmod +x authentication.sh
./authentication.sh

When prompted, provide your e-mail address and password. This will look something like:

Email (shown): [email protected]
Password (hidden): 
AGJvYkBnbWFpbC5jb20AYm9iaXN0aGViZXN0cGVyc29uZXZlcg==

Copy the last line (AGJ...==), as this will be used for authentication.

Notification

Save the following expect script as notify.sh (note the first line refers to the expect program):

#!/usr/bin/expect

set address "[lindex $argv 0]"
set subject "[lindex $argv 1]"
set ts_date "[lindex $argv 2]"
set ts_time "[lindex $argv 3]"

set timeout 10
spawn openssl s_client -connect smtp.gmail.com:465 -crlf -ign_eof 

expect "220" {
  send "EHLO localhost\n"

  expect "250" {
    send "AUTH PLAIN YOUR_AUTHENTICATION_CODE\n"

    expect "235" {
      send "MAIL FROM: <YOUR_EMAIL_ADDRESS>\n"

      expect "250" {
        send "RCPT TO: <$address>\n"

        expect "250" {
          send "DATA\n"

          expect "354" {
            send "Subject: $subject\n\n"
            send "Email sent on $ts_date at $ts_time.\n"
            send "\n.\n"

            expect "250" {
                send "quit\n"
            }
          }
        }
      }
    }
  }
}

Make the following changes:

1. Paste over YOUR_AUTHENTICATION_CODE with the authentication code generated by the authentication script.
2. Change YOUR_EMAIL_ADDRESS with the e-mail address used to generate the authentication code.
3. Save the file.

For example (note the angle brackets are retained for the e-mail address):

send "AUTH PLAIN AGJvYkBnbWFpbC5jb20AYm9iaXN0aGViZXN0cGVyc29uZXZlcg==\n"
send "MAIL FROM: <[email protected]>\n"

Lastly, make the notify script executable as follows:

chmod +x notify.sh

Send E-mail

Send an e-mail from the command line as follows:

./notify.sh [email protected] "Command Line" "March 14" "15:52"

Reason for the error:

Column expands to the maximum size in main axis direction (vertical axis), and so does the ListView.

Solutions

So, you need to constrain the height of the ListView. There are many ways of doing it, you can choose that best suits your need.

1. If you want to allow ListView to take up all remaining space inside Column use Expanded.

   Column(
     children: <Widget>[
       Expanded(
         child: ListView(...),
       )
     ],
   )
   

2. If you want to limit your ListView to certain height, you can use SizedBox.

   Column(
     children: <Widget>[
       SizedBox(
         height: 200, // constrain height
         child: ListView(),
       )
     ],
   )
   

3. If your ListView is small, you may try shrinkWrap property on it.

   Column(
     children: <Widget>[
       ListView(
         shrinkWrap: true, // use it
       )
     ],
   )
   

This should help you

HTML

<!-- pretty much i just need to click a link within the regions table and it changes to the neccesary div. -->

<table>
<tr class="thumb"></tr>
    <td><a href="#" class="showall">All Regions</a> (shows main map) (link)</td>   

<tr class="thumb"></tr>
<td>Northern Region (link)</td>
</tr>

<tr class="thumb"></tr>
<td>Southern Region (link)</td>
</tr>

<tr class="thumb"></tr>
<td>Eastern Region (link)</td>
</tr>
</table>
<br />

<div id="mainmapplace">
    <div id="mainmap">
        All Regions image
    </div>
</div>
<div id="region">
    <div class="replace">northern image</div>
    <div class="replace">southern image</div>
    <div class="replace">Eastern image</div>
</div>

JavaScript

var originalmap;
var flag = false;

$(function (){

    $(".replace").click(function(){
            flag = true;
            originalmap = $('#mainmap');
            $('#mainmap').replaceWith($(this));
        });

    $('.showall').click(
        function(){
            if(flag == true){
                $('#region').append($('#mainmapplace .replace'));                
                $('#mainmapplace').children().remove();
                $('#mainmapplace').append($(originalmap));
                //$('#mapplace').append();
            }
        }
    )

})

CSS

#mainmapplace{
    width: 100px;
    height: 100px;
    background: red;
}

#region div{
    width: 100px;
    height: 100px;
    background: blue;
    margin: 10px 0 0 0;
}

Considering the thoughts from http://www.thoughtcrime.org/blog/the-cryptographic-doom-principle/ (in short: FIRST encrypt, THEN authenticate. Afterwards FIRST verify, THEN decrypt) I have implemented the following solution in node.js:

function encrypt(text,password){
  var cipher = crypto.createCipher(algorithm,password)
  var crypted = cipher.update(text,'utf8','hex')
  crypted += cipher.final('hex');
  return crypted;
}

function decrypt(text,password){
  var decipher = crypto.createDecipher(algorithm,password)
  var dec = decipher.update(text,'hex','utf8')
  dec += decipher.final('utf8');
  return dec;
}

function hashText(text){
    var hash = crypto.createHash('md5').update(text).digest("hex");
    //console.log(hash); 
    return hash;
}

function encryptThenAuthenticate(plainText,pw)
{
    var encryptedText = encrypt(plainText,pw);
    var hash = hashText(encryptedText);
    return encryptedText+"$"+hash;
}
function VerifyThenDecrypt(encryptedAndAuthenticatedText,pw)
{
    var encryptedAndHashArray = encryptedAndAuthenticatedText.split("$");
    var encrypted = encryptedAndHashArray[0];
    var hash = encryptedAndHashArray[1];
    var hash2Compare = hashText(encrypted);
    if (hash === hash2Compare)
    {
        return decrypt(encrypted,pw); 
    }
}

It can be tested with:

var doom = encryptThenAuthenticate("The encrypted text",user.cryptoPassword);
console.log(VerifyThenDecrypt(doom,user.cryptoPassword));

Hope this helps :-)

build job: 'downstream_job_name', parameters: [
    booleanParam(name: 'parameter_name', value: false)
]

(cf. https://www.jenkins.io/doc/pipeline/steps/pipeline-build-step/#-build-%20build%20a%20job)

See the most recent stash:

git stash show -p

See an arbitrary stash:

git stash show -p stash@{1}

From the git stash manpages:

By default, the command shows the diffstat, but it will accept any format known to git diff (e.g., git stash show -p stash@{1} to view the second most recent stash in patch form).

ul {
      text-align: center;
      list-style: inside;
    }

declare @a nvarchar(50)='Enter Your string '
declare @character char='e'
declare @nthoccurence int = 2
declare @i int = 1
declare @j int =0
declare @count int = len(@a)-len(replace(@a,@character,''))

if(@count >= @nthoccurence)
begin
        while (@I <= @nthoccurence)
        begin
            set @j= CHARINDEX(@character,@a,@j+1)
            set @i= @i+1
        end
        print @j
end
else
    Print 'you have only '+convert(nvarchar ,@count)+' occurrences of '+@character
end

If you are sure jQuery is included try replacing $ with jQuery and try again.

Something like

jQuery(document).ready(function(){..

Still if you are getting error, you haven't included jQuery.

Edit: the original answer was misleading, np.sqrt was applied directly to the array, just with a small overhead.

In multidimensional cases where you want to apply a builtin function that operates on a 1d array, numpy.apply_along_axis is a good choice, also for more complex function compositions from numpy and scipy.

Previous misleading statement:

Adding the method:

def along_axis(x):
    return np.apply_along_axis(f, 0, x)

to the perfplot code gives performance results close to np.sqrt.

The String class exposes some methods to enable this, such as IndexOf and LastIndexOf, so that you may do this:

Dim myText = "abcde"
Dim dIndex = myText.IndexOf("d")
If (dIndex > -1) Then

End If

foo(*ob);

You don't need to cast it because it's the same Object type, you just need to dereference it.

Although @ruakh gave a good answer, I will add some alternatives for completeness:

You could in fact use even var Omega = 'Ω' in JavaScript, but only if your JavaScript code is:

• inside an event attribute, as in onclick="var Omega = '&#937'; alert(Omega)" or
• in a script element inside an XHTML (or XHTML + XML) document served with an XML content type.

In these cases, the code will be first (before getting passed to the JavaScript interpreter) be parsed by an HTML parser so that character references like Ω are recognized. The restrictions make this an impractical approach in most cases.

You can also enter the O character as such, as in var Omega = 'O', but then the character encoding must allow that, the encoding must be properly declared, and you need software that let you enter such characters. This is a clean solution and quite feasible if you use UTF-8 encoding for everything and are prepared to deal with the issues created by it. Source code will be readable, and reading it, you immediately see the character itself, instead of code notations. On the other hand, it may cause surprises if other people start working with your code.

Using the \u notation, as in var Omega = '\u03A9', works independently of character encoding, and it is in practice almost universal. It can however be as such used only up to U+FFFF, i.e. up to \uffff, but most characters that most people ever heard of fall into that area. (If you need “higher” characters, you need to use either surrogate pairs or one of the two approaches above.)

You can also construct a character using the String.fromCharCode() method, passing as a parameter the Unicode number, in decimal as in var Omega = String.fromCharCode(937) or in hexadecimal as in var Omega = String.fromCharCode(0x3A9). This works up to U+FFFF. This approach can be used even when you have the Unicode number in a variable.

Use np.select if you have multiple conditions to be checked from the dataframe and output a specific choice in a different column

conditions=[(condition1),(condition2)]
choices=["choice1","chocie2"]

df["new column"]=np.select=(condtion,choice,default=)

Note: No of conditions and no of choices should match, repeat text in choice if for two different conditions you have same choices

You can also install Fiddler (http://www.fiddler2.com/fiddler2/) which is very easy to install (easier than Apache for example).

After launching it, it will register itself as system proxy. Then open the "Rules" menu, and choose "Customize Rules..." to open a JScript file which allow you to customize requests.

To add a custom header, just add a line in the OnBeforeRequest function:

oSession.oRequest.headers.Add("MyHeader", "MyValue");

The Java Communications API (also known as javax.comm) provides applications access to RS-232 hardware (serial ports): http://www.oracle.com/technetwork/java/index-jsp-141752.html

When using Python >= 3.6, the cleanest way is to use f-strings with string formatting:

>>> var = 23
>>> f"{var:#010b}"
'0b00010111'

Explanation:

• var the variable to format
• : everything after this is the format specifier
• # use the alternative form (adds the 0b prefix)
• 0 pad with zeros
• 10 pad to a total length off 10 (this includes the 2 chars for 0b)
• b use binary representation for the number

Here are detailed instructions combining getting rid of all MySQL from your Mac then installing it The Brew Way as Sedorner wrote above:

Remove MySQL completely per The Tech Lab

• ps -ax | grep mysql
• stop and kill any MySQL processes
• sudo rm /usr/local/mysql
• sudo rm -rf /usr/local/var/mysql
• sudo rm -rf /usr/local/mysql*
• sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
• sudo rm -rf /Library/StartupItems/MySQLCOM
• sudo rm -rf /Library/PreferencePanes/My*
• launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
• edit /etc/hostconfig and remove the line MYSQLCOM=-YES-
• rm -rf ~/Library/PreferencePanes/My*
• sudo rm -rf /Library/Receipts/mysql*
• sudo rm -rf /Library/Receipts/MySQL*
• sudo rm -rf /private/var/db/receipts/*mysql*
• sudo rm -rf /tmp/mysql*
• try to run mysql, it shouldn't work

Brew install MySQL per user Sedorner from this StackOverflow answer

• brew doctor and fix any errors

• brew remove mysql

• brew cleanup

• brew update

• brew install mysql

• unset TMPDIR

    mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp # whoami is executed inline
  

• mysql.server start

• run the commands Brew suggests, add MySQL to launchctl so it automatically launches at startup

mysql should now work and be running all the time as expected

Godspeed.

Ordinarily, floats aren't counted in the layout of their parents.

To prevent that, add overflow: hidden to the parent.

I liked FBryant87 approach since it's simple. Unfortunately, it does like many other "solutions" not offer all permutations or of e.g. an integer if it contains the same digit more than once. Take 656123 as an example. The line:

var tail = chars.Except(new List<char>(){c});

using Except will cause all occurrences to be removed, i.e. when c = 6, two digits are removed and we are left with e.g. 5123. Since none of the solutions I tried solved this, I decided to try and solve it myself by FBryant87's code as base. This is what I came up with:

private static List<string> FindPermutations(string set)
    {
        var output = new List<string>();
        if (set.Length == 1)
        {
            output.Add(set);
        }
        else
        {
            foreach (var c in set)
            {
                // Remove one occurrence of the char (not all)
                var tail = set.Remove(set.IndexOf(c), 1);
                foreach (var tailPerms in FindPermutations(tail))
                {
                    output.Add(c + tailPerms);
                }
            }
        }
        return output;
    }

I simply just remove the first found occurrence using .Remove and .IndexOf. Seems to work as intended for my usage at least. I'm sure it could be made cleverer.

One thing to note though: The resulting list may contain duplicates, so make sure you either make the method return e.g. a HashSet instead or remove the duplicates after the return using any method you like.

You'd have to use reflection

public object GetPropertyValue(object car, string propertyName)
{
   return car.GetType().GetProperties()
      .Single(pi => pi.Name == propertyName)
      .GetValue(car, null);
}

If you want to be really fancy, you could make it an extension method:

public static object GetPropertyValue(this object car, string propertyName)
{
   return car.GetType().GetProperties()
      .Single(pi => pi.Name == propertyName)
      .GetValue(car, null);
}

And then:

string makeValue = (string)car.GetPropertyValue("Make");

Most of the browser are taking web page size by default. So, sometime page will not display same in different browser. So, by using user can change for specific HTML element. For example, user can add margin, size, width, height etc of specific HTML tag.