Programs & Examples On #Multitasking

i think this is cool, even tho in general its good form to leave the caller of a method responsible for ensuring its called on the right thread.

if (![[NSThread currentThread] isMainThread]) {
    [self performSelector:_cmd onThread:[NSThread mainThread] withObject:someObject waitUntilDone:NO];
    return;
}

Both multiprogramming and multitasking solve different problems, though they use similar method of switching between the processes.

Multiprogramming : In the early days, it was seen that at times certain processes where using peripherals (e.g.: I/O). In such cases, the CPU remained idle. To use the CPU more efficiently, it was prudent to load multiple processes in the memory. This way, if a certain process were to use the peripheral, certain other process would use the CPU. This was multiprogramming in action.

Multitasking : To the end user, multiple processes had to appear running at the same time. This was mocked by switching between different processes and by making them run on the CPU simultaneously. This was the idea behind multitasking.

Use Noda Time:

LocalDate start = new LocalDate(2013, 1, 5);
LocalDate end = new LocalDate(2014, 6, 1);
Period period = Period.Between(start, end, PeriodUnits.Months);
Console.WriteLine(period.Months); // 16

(example source)

To add my two cents to the conversation a process can have simultaneously open a number of sockets connected equal to this number (in Linux type sytems) /proc/sys/net/core/somaxconn

cat /proc/sys/net/core/somaxconn

This number can be modified on the fly (only by root user of course)

echo 1024 > /proc/sys/net/core/somaxconn

But entirely depends on the server process, the hardware of the machine and the network, the real number of sockets that can be connected before crashing the system

We can use class Log in our local component and define the methods as v/i/e/d. Based on the need of we can make call further.
example is shown below.

    public class Log{
        private static boolean TAG = false;
        public static void d(String enable_tag, String message,Object...args){
            if(TAG)
            android.util.Log.d(enable_tag, message+args);
        }
        public static void e(String enable_tag, String message,Object...args){
            if(TAG)
            android.util.Log.e(enable_tag, message+args);
        }
        public static void v(String enable_tag, String message,Object...args){
            if(TAG)
            android.util.Log.v(enable_tag, message+args);
        }
    }
    if we do not need any print(s), at-all make TAG as false for all else 
    remove the check for type of Log (say Log.d).
    as 
    public static void i(String enable_tag, String message,Object...args){
    //      if(TAG)
            android.util.Log.i(enable_tag, message+args);
    }

here message is for string and and args is the value you want to print.

This might sound stupid, but this hairline only appears when the background color for viewController's view is set to any color, but white. I was shocked to learn this fact.

So if you want it to disappear without much trouble just set the controller's view background color to WHITE COLOR.

Below is the Program to Solve Quadratic Equation.

For Example: Solve x2 + 3x – 4 = 0

This quadratic happens to factor:

x2 + 3x – 4 = (x + 4)(x – 1) = 0

we already know that the solutions are x = –4 and x = 1.

    # import complex math module
    import cmath

    a = 1
    b = 5
    c = 6

    # To take coefficient input from the users
    # a = float(input('Enter a: '))
    # b = float(input('Enter b: '))
    # c = float(input('Enter c: '))

    # calculate the discriminant
    d = (b**2) - (4*a*c)

    # find two solutions
    sol1 = (-b-cmath.sqrt(d))/(2*a)
    sol2 = (-b+cmath.sqrt(d))/(2*a)

    print('The solution are {0} and {1}'.format(sol1,sol2))

Source: Python Program to Solve Quadratic Equation

Use the following syntax:

  ALTER TABLE your_table
  MODIFY COLUMN column1 datatype,
  MODIFY COLUMN column2 datatype,
  ... ... ... ... ... 
  ... ... ... ... ...

Based on that, your ALTER command should be:

  ALTER TABLE webstore.Store
  MODIFY COLUMN ShortName VARCHAR(100),
  MODIFY COLUMN UrlShort VARCHAR(100)

Note that:

1. There are no second brackets around the MODIFY statements.
2. I used two separate MODIFY statements for two separate columns.

This is the standard format of the MODIFY statement for an ALTER command on multiple columns in a MySQL table.

Take a look at the following: http://dev.mysql.com/doc/refman/5.1/en/alter-table.html and Alter multiple columns in a single statement

Mike; Everytime I need to modify an XML document I work it this way:

//Here is the variable with which you assign a new value to the attribute
string newValue = string.Empty;
XmlDocument xmlDoc = new XmlDocument();

xmlDoc.Load(xmlFile);

XmlNode node = xmlDoc.SelectSingleNode("Root/Node/Element");
node.Attributes[0].Value = newValue;

xmlDoc.Save(xmlFile);

//xmlFile is the path of your file to be modified

I hope you find it useful

The below approach works with latest Android studio (> v0.8.x):

• Save the aar file under app module's libs folder (eg: <project>/<app>/libs/myaar.aar)

• Add the below to build.gradle of your "app" module folder (not your project root build.gradle). Note the name in compile line, it is myaar@aar not myaar.aar.

  dependencies {
      compile 'package.name.of.your.aar:myaar@aar'
  }
  
  repositories{
      flatDir{
          dirs 'libs'
      }
  }
  

• Click Tools -> Android -> Sync Project with Gradle Files

I'd go with the multiple resource files. It shouldn't be that hard to configure. In fact I recently answered a similar question on setting a global language based resource files in conjunction with form language resource files.

Localization in Visual Studio 2008

I would consider that the best approach at least for WinForm development.

There's the trusty strip_tags function. It's not pretty though. It'll only sanitize. You could combine it with a string replace to get your fancy underscores.

<?php
// to strip all tags and wrap italics with underscore
strip_tags(str_replace(array("<i>", "</i>"), array("_", "_"), $text));

// to preserve anchors...
str_replace("|a", "<a", strip_tags(str_replace("<a", "|a", $text)));

?>

At first check out that your linked server is in the list by this query

select name from sys.servers

If it not exists then try to add to the linked server

EXEC sp_addlinkedserver @server = 'SERVER_NAME' --or may be server ip address

After that login to that linked server by

EXEC sp_addlinkedsrvlogin 'SERVER_NAME'
                         ,'false'
                         ,NULL
                         ,'USER_NAME'
                         ,'PASSWORD'

Then you can do whatever you want ,treat it like your local server

exec [SERVER_NAME].[DATABASE_NAME].dbo.SP_NAME @sample_parameter

Finally you can drop that server from linked server list by

sp_dropserver 'SERVER_NAME', 'droplogins'

If it will help you then please upvote.

private void button1_Click(object sender, EventArgs e)
{
    SqlConnection con = new SqlConnection();
    con.ConnectionString = "data source=CHANCHAL\SQLEXPRESS;initial catalog=AssetManager;user id=GIPL-PC\GIPL;password=";
    con.Open();
    SqlDataAdapter ad = new SqlDataAdapter("select * from detail1", con);
    SqlCommandBuilder cmdbl = new SqlCommandBuilder(ad);
    DataSet ds = new DataSet("detail1");
    ad.Fill(ds, "detail1");
    DataRow row = ds.Tables["detail1"].NewRow();
    row["Name"] = textBox1.Text;
    row["address"] =textBox2.Text;
    ds.Tables["detail1"].Rows.Add(row);
    ad.Update(ds, "detail1");
    con.Close();
    MessageBox.Show("insert secussfully"); 
}

You can use:

Select
     count(created_date) as counted_leads,
     created_date as count_date
from
     table
group by
     created_date

You need to create a handler for the onkeypress action.

HTML

<input name="keywords" type="text" id="keywords" size="50" onkeypress="handleEnter(this, event)" />

JS

function handleEnter(inField, e)
{
    var charCode;

    //Get key code (support for all browsers)
    if(e && e.which)
    {
        charCode = e.which;
    }
    else if(window.event)
    {
        e = window.event;
        charCode = e.keyCode;
    }

    if(charCode == 13)
    {
       //Call your submit function
    }
}

Usinge the file argument in the print function, you can have different files per print:

print('Redirect output to file', file=open('/tmp/example.log', 'w'))

Python 3.5 + Use io module

import json
import io

my_bytes_value = b'[{\'Date\': \'2016-05-21T21:35:40Z\', \'CreationDate\': \'2012-05-05\', \'LogoType\': \'png\', \'Ref\': 164611595, \'Classe\': [\'Email addresses\', \'Passwords\'],\'Link\':\'http://some_link.com\'}]'

fix_bytes_value = my_bytes_value.replace(b"'", b'"')

my_json = json.load(io.BytesIO(fix_bytes_value))  

EDIT: I am maintaining a similar, but more in-depth answer at: https://stackoverflow.com/a/28380690/895245

To see exactly what is happening, use nc -l or an ECHO server and an user agent like a browser or cURL.

Save the form to an .html file:

<form action="http://localhost:8000" method="post" enctype="multipart/form-data">
  <p><input type="text" name="text" value="text default">
  <p><input type="file" name="file1">
  <p><input type="file" name="file2">
  <p><button type="submit">Submit</button>
</form>

Create files to upload:

echo 'Content of a.txt.' > a.txt
echo '<!DOCTYPE html><title>Content of a.html.</title>' > a.html

Run:

nc -l localhost 8000

Open the HTML on your browser, select the files and click on submit and check the terminal.

nc prints the request received. Firefox sent:

POST / HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Firefox/29.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: __atuvc=34%7C7; permanent=0; _gitlab_session=226ad8a0be43681acf38c2fab9497240; __profilin=p%3Dt; request_method=GET
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------9051914041544843365972754266
Content-Length: 554

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="text"

text default
-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file1"; filename="a.txt"
Content-Type: text/plain

Content of a.txt.

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file2"; filename="a.html"
Content-Type: text/html

<!DOCTYPE html><title>Content of a.html.</title>

-----------------------------9051914041544843365972754266--

Aternativelly, cURL should send the same POST request as your a browser form:

nc -l localhost 8000
curl -F "text=default" -F "[email protected]" -F "[email protected]" localhost:8000

You can do multiple tests with:

while true; do printf '' | nc -l localhost 8000; done

Usually for jumping people use Rigidbody2D.AddForce with Forcemode.Impulse. It may seem like your object is pushed once in Y axis and it will fall down automatically due to gravity.

Example:

rigidbody2D.AddForce(new Vector2(0, 10), ForceMode2D.Impulse);

I know that this post is old, but this still comes up in search results. I couldn't find the solution to this problem online, so I ended up figuring it out myself. If you're using Ubuntu, then there is a program called "Apparmor" that is preventing MySQL from seeing the file. Here's what you need to do if you want MySQL to be able to read files from the "tmp" directory:

sudo vim /etc/apparmor.d/usr.sbin.mysqld

Once you are in the file, you're going to see a bunch of directories that MySQL can use. Add the line /tmp/** rwk to the file (I am not sure that it matters where, but here is a sample of where I put it):

  /etc/mysql/*.pem r,

  /etc/mysql/conf.d/ r,

  /etc/mysql/conf.d/* r,

  /etc/mysql/*.cnf r,

  /usr/lib/mysql/plugin/ r,

  /usr/lib/mysql/plugin/*.so* mr,

  /usr/sbin/mysqld mr,

  /usr/share/mysql/** r,

  /var/log/mysql.log rw,

  /var/log/mysql.err rw,

  /var/lib/mysql/ r,

  /var/lib/mysql/** rwk,


  /tmp/** rwk,


  /var/log/mysql/ r,

  /var/log/mysql/* rw,

  /var/run/mysqld/mysqld.pid w,

  /var/run/mysqld/mysqld.sock w,

  /run/mysqld/mysqld.pid w,

  /run/mysqld/mysqld.sock w,

Now all you need to do is reload Apparmor:

sudo /etc/init.d/apparmor reload

Note I used "vim", but substitute that with whatever your favorite text editor is that you know how to use.

Just ran into this problem. I don't know if it's the same thing that hit your code, but for me the root cause was because I forgot to put name= on the last argument of the url (or path in Django 2.0+) function call.

For instance, the following functions throw the error from the question:

url(r'^foo/(?P<bar>[A-Za-z]+)/$', views.FooBar.as_view(), 'foo')
path('foo/{slug:bar}/', views.FooBar, 'foo')

But these actually work:

url(r'^foo/(?P<bar>[A-Za-z]+)/$', views.FooBar.as_view(), name='foo')
path('foo/{slug:bar}/', views.FooBar, name='foo')

The reason why the traceback is unhelpful is because internally, Django wants to parse the given positional argument as the keyword argument kwargs, and since a string is an iterable, an atypical code path begins to unfold. Always use name= on your urls!

Workaround....

In VS 2015 Professional (and probably other versions). Go to Tools / Options / Environment / Fonts and Colours. In the "Show Settings For" drop-down, select "CodeLens" Choose the smallest font you can find e.g. Calibri 6. Change the foreground colour to your editor foreground colour (say "White") Click OK.

I just input some value that I knew was invalid and here is the output:

'whatToInput' is not a supported event for HtmlPanelGrid. Please specify one of these supported event names: click, dblclick, keydown, keypress, keyup, mousedown, mousemove, mouseout, mouseover, mouseup.

So values you can pass to event are

• click
• dblclick
• keydown
• mousedown
• mousemove
• mouseover
• mouseup

Here is the example:

SQL> set define off;
SQL> select * from dual where dummy='&var';

no rows selected

SQL> set define on
SQL> /
Enter value for var: X
old   1: select * from dual where dummy='&var'
new   1: select * from dual where dummy='X'

D
-
X

With set define off, it took a row with &var value, prompted a user to enter a value for it and replaced &var with the entered value (in this case, X).

Note that in Entity Framework 6.1 (currently in beta) will support the IndexAttribute to annotate the index properties which will automatically result in a (unique) index in your Code First Migrations.

var objToJson = { };
objToJson.response = response;
response.write(JSON.stringify(objToJson));

If you alert(JSON.stringify(objToJson)) you will get {"response":"value"}

Thanks to nrathaus and /var/log/auth.log investigation on debug level comes the following.

Another reason is that your home directory may have permissions different than 755.

OP's solution to his problem, as he says, has dubious output. That code still shows confusion about representations of time. To clear up this confusion, and make code that won't lead to wrong times, consider this extension of what he did:

public static void _testDateFormatting() {
    SimpleDateFormat sdfGMT1 = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
    sdfGMT1.setTimeZone(TimeZone.getTimeZone("GMT"));
    SimpleDateFormat sdfGMT2 = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z");
    sdfGMT2.setTimeZone(TimeZone.getTimeZone("GMT"));

    SimpleDateFormat sdfLocal1 = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
    SimpleDateFormat sdfLocal2 = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss z");

    try {
        Date d = new Date();
        String s1 = d.toString();
        String s2 = sdfLocal1.format(d);
        // Store s3 or s4 in database.
        String s3 = sdfGMT1.format(d);
        String s4 = sdfGMT2.format(d);
        // Retrieve s3 or s4 from database, using LOCAL sdf.
        String s5 = sdfLocal1.parse(s3).toString();
        //EXCEPTION String s6 = sdfLocal2.parse(s3).toString();
        String s7 = sdfLocal1.parse(s4).toString();
        String s8 = sdfLocal2.parse(s4).toString();
        // Retrieve s3 from database, using GMT sdf.
        // Note that this is the SAME sdf that created s3.
        Date d2 = sdfGMT1.parse(s3);
        String s9 = d2.toString();
        String s10 = sdfGMT1.format(d2);
        String s11 = sdfLocal2.format(d2);
    } catch (Exception e) {
        e.printStackTrace();
    }       
}

examining values in a debugger:

s1  "Mon Sep 07 06:11:53 EDT 2015" (id=831698113128)    
s2  "2015.09.07 06:11:53" (id=831698114048) 
s3  "2015.09.07 10:11:53" (id=831698114968) 
s4  "2015.09.07 10:11:53 GMT+00:00" (id=831698116112)   
s5  "Mon Sep 07 10:11:53 EDT 2015" (id=831698116944)    
s6  -- omitted, gave parse exception    
s7  "Mon Sep 07 10:11:53 EDT 2015" (id=831698118680)    
s8  "Mon Sep 07 06:11:53 EDT 2015" (id=831698119584)    
s9  "Mon Sep 07 06:11:53 EDT 2015" (id=831698120392)    
s10 "2015.09.07 10:11:53" (id=831698121312) 
s11 "2015.09.07 06:11:53 EDT" (id=831698122256) 

sdf2 and sdfLocal2 include time zone, so we can see what is really going on. s1 & s2 are at 06:11:53 in zone EDT. s3 & s4 are at 10:11:53 in zone GMT -- equivalent to the original EDT time. Imagine we save s3 or s4 in a data base, where we are using GMT for consistency, so we can have times from anywhere in the world, without storing different time zones.

s5 parses the GMT time, but treats it as a local time. So it says "10:11:53" -- the GMT time -- but thinks it is 10:11:53 in local time. Not good.

s7 parses the GMT time, but ignores the GMT in the string, so still treats it as a local time.

s8 works, because now we include GMT in the string, and the local zone parser uses it to convert from one time zone to another.

Now suppose you don't want to store the zone, you want to be able to parse s3, but display it as a local time. The answer is to parse using the same time zone it was stored in -- so use the same sdf as it was created in, sdfGMT1. s9, s10, & s11 are all representations of the original time. They are all "correct". That is, d2 == d1. Then it is only a question of how you want to DISPLAY it. If you want to display what is stored in DB -- GMT time -- then you need to format it using a GMT sdf. Ths is s10.

So here is the final solution, if you don't want to explicitly store with " GMT" in the string, and want to display in GMT format:

public static void _testDateFormatting() {
    SimpleDateFormat sdfGMT1 = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
    sdfGMT1.setTimeZone(TimeZone.getTimeZone("GMT"));

    try {
        Date d = new Date();
        String s3 = sdfGMT1.format(d);
        // Store s3 in DB.
        // ...
        // Retrieve s3 from database, using GMT sdf.
        Date d2 = sdfGMT1.parse(s3);
        String s10 = sdfGMT1.format(d2);
    } catch (Exception e) {
        e.printStackTrace();
    }       
}

Would this work for you?

if ((letter & (Letters.A | Letters.B)) != 0)

what if you use

Map<String, ? extends Class<? extends Serializable>> expected = null;

It's Works

.ts -> pi = 3.1415

.html -> {{ pi | number : '1.0-2' }}

Ouput -> 3.14

1. if it has a decimal it only shows one
2. if it has two decimals it shows both

https://stackblitz.com/edit/angular-e8g2pt?file=src/app/app.component.html

this works for me!!! thanks!!

At first, you have to put your .css or .js files in the public folder of your project. You may create subfolders to it and move the files into the subfolder. Then you have to do the followings

<link rel="stylesheet" href="{{asset('css/your_css_file.css')}}">
<script src="{{asset('js/your_js_file.js')}}"></script>

In my example, I have created two subfolders called css and js. I put all of the .css and .js files in corresponding folders and use them where ever I want them. Thank you and hope this helps you.

My solution is to use these 2 mappings:

map <leader>n <Esc><Esc>0qq
map <leader>m q:'<,'>-1normal!@q<CR><Down>

How to use them:

1. Select your lines. If I want to select the next 12 lines I just press V12j
2. Press <leader>n
3. Make your changes to the line
4. Make sure you're in normal mode and then press <leader>m

To make another edit you don't need to make the selection again. Just press <leader>n, make your edit and press <leader>m to apply.

How this works:

• <Esc><Esc>0qq Exit the visual selection, go to the beginning of the line and start recording a macro.

• q Stop recording the macro.

• :'<,'>-1normal!@q<CR> From the start of the visual selection to the line before the end, play the macro on each line.

• <Down> Go back down to the last line.

You can also just map the same key but for different modes:

vmap <leader>m <Esc><Esc>0qq
nmap <leader>m q:'<,'>-1normal!@q<CR><Down>

Although this messes up your ability to make another edit. You'll have to re-select your lines.

check the command : NA!=NA : you'll get the result NA, hence the error message.

You have to use the function is.na for your ifstatement to work (in general, it is always better to use this function to check for NA values) :

comments = c("no","yes",NA)
for (l in 1:length(comments)) {
    if (!is.na(comments[l])) print(comments[l])
}
[1] "no"
[1] "yes"

Correct, np.log(x) is the Natural Log (base e log) of x.

For other bases, remember this law of logs: log-b(x) = log-k(x) / log-k(b) where log-b is the log in some arbitrary base b, and log-k is the log in base k, e.g.

here k = e

l = np.log(x) / np.log(100)

and l is the log-base-100 of x

And yet another possibility:

In [2]: a = array([1, 2, 3, -4, 5])

In [3]: where(a<0, 0, a)
Out[3]: array([1, 2, 3, 0, 5])

Alongside nmaier's answer, as he said you'll always receive code 1006. However, if you were to somehow theoretically receive other codes, here is code to display the results (via RFC6455).

you will almost never get these codes in practice so this code is pretty much pointless

var websocket;
if ("WebSocket" in window)
{
    websocket = new WebSocket("ws://yourDomainNameHere.org/");

    websocket.onopen = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "The connection was opened");
    };
    websocket.onclose = function (event) {
        var reason;
        alert(event.code);
        // See http://tools.ietf.org/html/rfc6455#section-7.4.1
        if (event.code == 1000)
            reason = "Normal closure, meaning that the purpose for which the connection was established has been fulfilled.";
        else if(event.code == 1001)
            reason = "An endpoint is \"going away\", such as a server going down or a browser having navigated away from a page.";
        else if(event.code == 1002)
            reason = "An endpoint is terminating the connection due to a protocol error";
        else if(event.code == 1003)
            reason = "An endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).";
        else if(event.code == 1004)
            reason = "Reserved. The specific meaning might be defined in the future.";
        else if(event.code == 1005)
            reason = "No status code was actually present.";
        else if(event.code == 1006)
           reason = "The connection was closed abnormally, e.g., without sending or receiving a Close control frame";
        else if(event.code == 1007)
            reason = "An endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 [http://tools.ietf.org/html/rfc3629] data within a text message).";
        else if(event.code == 1008)
            reason = "An endpoint is terminating the connection because it has received a message that \"violates its policy\". This reason is given either if there is no other sutible reason, or if there is a need to hide specific details about the policy.";
        else if(event.code == 1009)
           reason = "An endpoint is terminating the connection because it has received a message that is too big for it to process.";
        else if(event.code == 1010) // Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
            reason = "An endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. <br /> Specifically, the extensions that are needed are: " + event.reason;
        else if(event.code == 1011)
            reason = "A server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.";
        else if(event.code == 1015)
            reason = "The connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).";
        else
            reason = "Unknown reason";

        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "The connection was closed for reason: " + reason);
    };
    websocket.onmessage = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "New message arrived: " + event.data);
    };
    websocket.onerror = function (event) {
        $("#thingsThatHappened").html($("#thingsThatHappened").html() + "<br />" + "There was an error with your websocket.");
    };
}
else
{
    alert("Websocket is not supported by your browser");
    return;
}

websocket.send("Yo wazzup");

websocket.close();

See http://jsfiddle.net/gr0bhrqr/

I had the same problem however none of the above solutions worked for me. What I ended up doing was:
- create an empty file with the same name
- compare this file with its local history
- copy history across to empty file.

It is possible! Yes

In many cases, you might want to use XAMPP with a different PHP version than the one that comes preinstalled. You might do this to get the benefits of a newer version of PHP, or to reproduce bugs using an earlier version of PHP.

To use a different version of PHP with XAMPP, follow these steps:

1. Download a binary build of the PHP version that you wish to use from the PHP website, and extract the contents of the compressed archive file to your XAMPP installation directory (usually, C:\xampp). Ensure that you give it a different directory name to avoid overwriting the existing PHP version. For example, in this tutorial, we’ll call the new directory C:\xampp\php5-6-0. NOTE : Ensure that the PHP build you download matches the Apache build (VC9 or VC11) in your XAMPP platform.

2. Within the new directory, rename the php.ini-development file to php.ini. If you prefer to use production settings, you could instead rename the php.ini-production file to php.ini.

3. Edit the httpd-xampp.conf file in the apache\conf\extra\ subdirectory of your XAMPP installation directory. Within this file, search for all instances of the old PHP directory path and replace them with the path to the new PHP directory created in Step 1. In particular, be sure to change the lines

    LoadFile "/xampp/php/php5ts.dll"
    LoadFile "/xampp/php/libpq.dll"
    LoadModule php5_module "/xampp/php/php5apache2_4.dll"

to

    LoadFile "/xampp/php5-6-0/php5ts.dll"
    LoadFile "/xampp/php5-6-0/libpq.dll"
    LoadModule php5_module "/xampp/php5-6-0/php5apache2_4.dll"

NOTE : Remember to adjust the file and directory paths above to reflect valid paths on your system.

4. Restart your Apache server through the XAMPP control panel for your changes to take effect. The new version of PHP should now be active. To verify this, browse to the URL http://localhost/xampp/phpinfo.php, which displays the output of the phpinfo() command, and check the version number at the top of the page.

I was pulling my hair out with the same problem. Xcode gives you the error:

Trying to start MapKit location updates without prompting for location authorization. Must call -[CLLocationManager requestWhenInUseAuthorization] or -[CLLocationManager requestAlwaysAuthorization] first.

But even if you implement one of the above methods, it won't prompt the user unless there is an entry in the info.plist for NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription.

Add the following lines to your info.plist where the string values represent the reason you you need to access the users location

<key>NSLocationWhenInUseUsageDescription</key>
<string>This application requires location services to work</string>

<key>NSLocationAlwaysUsageDescription</key>
<string>This application requires location services to work</string>

I think these entries may have been missing since I started this project in Xcode 5. I'm guessing Xcode 6 might add default entries for these keys but have not confirmed.

You can find more information on these two Settings here

You can simply do tar -xvf <rpm file> as well!

My issue was fixed by increasing my inotify max_user_watches:

sudo sysctl fs.inotify.max_user_watches=1280000

Like that. Except char hi=hello; should be char hi=hello.charAt(0). (Don't forget your break; statements).

I'm quite a beginner in Python and I found the answer of Anand was very good but quite complicated to me, so I try to reformulate :

1) insert and append methods are not specific to sys.path and as in other languages they add an item into a list or array and :
* append(item) add item to the end of the list,
* insert(n, item) inserts the item at the nth position in the list (0 at the beginning, 1 after the first element, etc ...).

2) As Anand said, python search the import files in each directory of the path in the order of the path, so :
* If you have no file name collisions, the order of the path has no impact,
* If you look after a function already defined in the path and you use append to add your path, you will not get your function but the predefined one.

But I think that it is better to use append and not insert to not overload the standard behaviour of Python, and use non-ambiguous names for your files and methods.

The etckeeper tool can handle permissions and with:

etckeeper init -d /mydir

You can use it for other dirs than /etc.

Install by using your package manager or get sources from above link.

The list selector drawable is a StateListDrawable — it contains reference to multiple drawables for each state the list can be, like selected, focused, pressed, disabled...

While you can retrieve the drawable using getSelector(), I don't believe you can retrieve a specific Drawable from a StateListDrawable, nor does it seem possible to programmatically retrieve the colour directly from a ColorDrawable anyway.

As for setting the colour, you need a StateListDrawable as described above. You can set this on your list using the android:listSelector attribute, defining the drawable in XML like this:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_enabled="false" android:state_focused="true"
        android:drawable="@drawable/item_disabled" />
  <item android:state_pressed="true"
        android:drawable="@drawable/item_pressed" />
  <item android:state_focused="true"
        android:drawable="@drawable/item_focused" />
</selector>

  var table = Tables[0]; //get first table from Dataset
  foreach (DataRow row in table.Rows)
     {
       foreach (var item in row.ItemArray)
         {
            console.Write("Value:"+item);
         }
     }

org.springframework.util.CollectionUtils

boolean containsAny(java.util.Collection<?> source, java.util.Collection<?> candidates)

Return true if any element in 'candidates' is contained in 'source'; otherwise returns false

 if ( getActivity().getPackageManager().hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH)) {

          CameraManager cameraManager=(CameraManager) getActivity().getSystemService(Context.CAMERA_SERVICE);


           try {
               String cameraId = cameraManager.getCameraIdList()[0];
               cameraManager.setTorchMode(cameraId,true);
           } catch (CameraAccessException e) {
               e.printStackTrace();
           }


 }

Postgrseql 9.1 provides for a new command CREATE EXTENSION. You should use it to install modules.

Modules provided in 9.1 can be found here.. The include,

adminpack , auth_delay , auto_explain , btree_gin , btree_gist
, chkpass , citext , cube , dblink , dict_int
, dict_xsyn , dummy_seclabel , earthdistance , file_fdw , fuzzystrmatch
, hstore , intagg , intarray , isn , lo
, ltree , oid2name , pageinspect , passwordcheck , pg_archivecleanup
, pgbench , pg_buffercache , pgcrypto , pg_freespacemap , pgrowlocks
, pg_standby , pg_stat_statements , pgstattuple , pg_test_fsync , pg_trgm
, pg_upgrade , seg , sepgsql , spi , sslinfo , tablefunc
, test_parser , tsearch2 , unaccent , uuid-ossp , vacuumlo
, xml2

If for instance you wanted to install earthdistance, simply use this command:

CREATE EXTENSION earthdistance;

If you wanted to install an extension with a hyphen in its name, like uuid-ossp, you need to enclose the extension name in double quotes:

CREATE EXTENSION "uuid-ossp";

• Read more about contrib, and the modules available in 9.1.
• Read about the new extension infrastructure, and the SQL commands to manage it here You can now more easily uninstall a module, see DROP EXTENSION. You can also get an extension list, and there is basic support for version numbers.

FYI I did a little research as well and if the name of the font-family you want to apply contains spaces (as an example I take Gill Alt One MT Light), you should write it this way :

strbody= "<BODY style=" & Chr(34) & "font-family:Gill Alt One MT Light" & Chr(34) & ">" & YOUR_TEXT & "</BODY>"

USE A SEMI-COLON AT BEGINING OF LINE --->> ; <<---

Ex.

; last modified 1 April 2001 by John Doe
[owner]
name=John Doe
organization=Acme Widgets Inc.

There is this extensions that adds an event listener to attribute changes.

Usage:

<script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
<script type="text/javascript"
  src="https://cdn.rawgit.com/meetselva/attrchange/master/js/attrchange.js"></script>

Bind attrchange handler function to selected elements

$(selector).attrchange({
    trackValues: true, /* Default to false, if set to true the event object is 
                updated with old and new value.*/
    callback: function (event) { 
        //event               - event object
        //event.attributeName - Name of the attribute modified
        //event.oldValue      - Previous value of the modified attribute
        //event.newValue      - New value of the modified attribute
        //Triggered when the selected elements attribute is added/updated/removed
    }        
});

Spring Boot by default has a “whitelabel” error page which you can see in a browser if you encounter a server error. Whitelabel Error Page is a generic Spring Boot error page which is displayed when no custom error page is found.

Set “server.error.whitelabel.enabled=false” to switch of the default error page

In response to the post starting:

If you want to use this with command line or function arguments...

with the code:

size=${#1}

There might be the case where you just want to check for a zero length argument and have no need to store a variable. I believe you can use this sort of syntax:

if [ -z "$1" ]; then
    #zero length argument 
else
    #non-zero length
fi

See GNU and wooledge for a more complete list of Bash conditional expressions.

UIWebView

get HTML from UIWebView`

let content = uiWebView.stringByEvaluatingJavaScript(from: "document.body.innerHTML")

set HTML into UIWebView

//Do not forget to extend a class from `UIWebViewDelegate` and nil the delegate

func someFunction() {

    let uiWebView = UIWebView()
    uiWebView.loadHTMLString("<html><body></body></html>", baseURL: nil)
    uiWebView.delegate = self as? UIWebViewDelegate
}

func webViewDidFinishLoad(_ webView: UIWebView) {
    //ready to be processed
}

[get/set HTML from WKWebView]

Jon Skeet has written a library called morelinq which has a DistinctBy() operator. See here for the implementation. Your code would look like

IEnumerable<Note> distinctNotes = Notes.DistinctBy(note => note.Author);

Update: After re-reading your question, Kirk has the correct answer if you're just looking for a distinct set of Authors.

Added sample, several fields in DistinctBy:

res = res.DistinctBy(i => i.Name).DistinctBy(i => i.ProductId).ToList();

use this code to redirect the page

echo "<script>alert('There are no fields to generate a report');document.location='admin/ahm/panel'</script>";

Html Code:-

<a href="#" id="playerID">Play</a>
<iframe src="https://www.youtube.com/embed/videoID" class="embed-responsive-item" data-play="0" id="VdoID" ></iframe>

Jquery Code:-

$('#playerID').click(function(){
    var videoURL = $('#VdoID').attr('src'),
    dataplay = $('#VdoID').attr('data-play');

    //for check autoplay
    //if not set autoplay=1
    if(dataplay == 0 ){
        $('#VdoID').attr('src',videoURL+'?autoplay=1');
        $('#VdoID').attr('data-play',1);
     }
     else{
        var videoURL = $('#VdoID').attr('src');
        videoURL = videoURL.replace("?autoplay=1", "");
        $('#VdoID').prop('src','');
        $('#VdoID').prop('src',videoURL);

        $('#VdoID').attr('data-play',0);
     }

});

Thats It!

Is old post but can be done like this:

if(!function_exists('strim')) :
function strim($str,$charlist=" ",$option=0){
    $return='';
    if(is_string($str))
    {
        // Translate HTML entities
        $return = str_replace(" "," ",$str);
        $return = strtr($return, array_flip(get_html_translation_table(HTML_ENTITIES, ENT_QUOTES)));
        // Choose trim option
        switch($option)
        {
            // Strip whitespace (and other characters) from the begin and end of string
            default:
            case 0:
                $return = trim($return,$charlist);
            break;
            // Strip whitespace (and other characters) from the begin of string 
            case 1:
                $return = ltrim($return,$charlist);
            break;
            // Strip whitespace (and other characters) from the end of string 
            case 2:
                $return = rtrim($return,$charlist);
            break;

        }
    }
    return $return;
}
endif;

Standard trim() functions can be a problematic when come HTML entities. That's why i wrote "Super Trim" function what is used to handle with this problem and also you can choose is trimming from the begin, end or booth side of string.

I solved it like this using Angular 5.2.6 and TypeScript 2.6.2:

class Range implements Iterable<number> {
    constructor(
        public readonly low: number,
        public readonly high: number,
        public readonly step: number = 1
    ) {
    }

    *[Symbol.iterator]() {
        for (let x = this.low; x <= this.high; x += this.step) {
            yield x;
        }
    }
}

function range(low: number, high: number) {
    return new Range(low, high);
}

It can be used in a Component like this:

@Component({
    template: `<div *ngFor="let i of r">{{ i }}</div>`
})
class RangeTestComponent {
    public r = range(10, 20);
}

Error checking and assertions omitted on purpose for brevity (e.g. what happens if step is negative).

I think it's asking you to do this:

SELECT ID
FROM (SELECT ID,
             msisdn 
      FROM (SELECT * FROM TT2) as myalias
     ) as anotheralias;

But why would you write this query in the first place?

Here is the sample working code which opens mail application in android device and auto-filled with To address and Subject in the composing mail.

protected void sendEmail() {
    Intent intent = new Intent(Intent.ACTION_SENDTO);
    intent.setData(Uri.parse("mailto:[email protected]"));
    intent.putExtra(Intent.EXTRA_SUBJECT, "Feedback");
    if (intent.resolveActivity(getPackageManager()) != null) {
        startActivity(intent);
    }
}

Not possible without assigning height value to div.

Add this

body, html{height:100%}
div{height:100%}
table{background:green; width:450px}    ?

DEMO

Why not create a class Book with properties: Number, Title, and Price. Then store them in a single dimensional array? That way instead of calling

Book[i][j] 

..to get your books title, call

Book[i].Title

Seems to me like it would be a bit more manageable and code friendly.

While this question is premised by not caring about the data, sometimes maintenance of the data is essential.

If so, I wrote a list of steps on how to recover from Entity Framework nightmare when the database already has tables with the same name here: How to recover from Entity Framework nightmare - database already has tables with the same name

Apparently... a moderator saw fit to delete my post so I'll paste it here:

How to recover from Entity Framework nightmare - database already has tables with the same name

Description: If you're like us when your team is new to EF, you'll end up in a state where you either can't create a new local database or you can't apply updates to your production database. You want to get back to a clean EF environment and then stick to basics, but you can't. If you get it working for production, you can't create a local db, and if you get it working for local, your production server gets out of sync. And finally, you don't want to delete any production server data.

Symptom: Can't run Update-Database because it's trying to run the creation script and the database already has tables with the same name.

Error Message: System.Data.SqlClient.SqlException (0x80131904): There is already an object named '' in the database.

Problem Background: EF understands where the current database is at compared to where the code is at based on a table in the database called dbo.__MigrationHistory. When it looks at the Migration Scripts, it tries to reconsile where it was last at with the scripts. If it can't, it just tries to apply them in order. This means, it goes back to the initial creation script and if you look at the very first part in the UP command, it'll be the CreeateTable for the table that the error was occurring on.

To understand this in more detail, I'd recommend watching both videos referenced here: https://msdn.microsoft.com/en-us/library/dn481501(v=vs.113).aspx

Solution: What we need to do is to trick EF into thinking that the current database is up to date while not applying these CreateTable commands. At the same time, we still want those commands to exist so we can create new local databases.

Step 1: Production DB clean First, make a backup of your production db. In SSMS, Right-Click on the database, Select "Tasks > Export Data-tier application..." and follow the prompts. Open your production database and delete/drop the dbo.__MigrationHistory table.

Step 2: Local environment clean Open your migrations folder and delete it. I'm assuming you can get this all back from git if necessary.

Step 3: Recreate Initial In the Package Manager, run "Enable-Migrations" (EF will prompt you to use -ContextTypeName if you have multiple contexts). Run "Add-Migration Initial -verbose". This will Create the initial script to create the database from scratch based on the current code. If you had any seed operations in the previous Configuration.cs, then copy that across.

Step 4: Trick EF At this point, if we ran Update-Database, we'd be getting the original error. So, we need to trick EF into thinking that it's up to date, without running these commands. So, go into the Up method in the Initial migration you just created and comment it all out.

Step 5: Update-Database With no code to execute on the Up process, EF will create the dbo.__MigrationHistory table with the correct entry to say that it ran this script correctly. Go and check it out if you like. Now, uncomment that code and save. You can run Update-Database again if you want to check that EF thinks its up to date. It won't run the Up step with all of the CreateTable commands because it thinks it's already done this.

Step 6: Confirm EF is ACTUALLY up to date If you had code that hadn't yet had migrations applied to it, this is what I did...

Run "Add-Migration MissingMigrations" This will create practically an empty script. Because the code was there already, there was actually the correct commands to create these tables in the initial migration script, so I just cut the CreateTable and equivalent drop commands into the Up and Down methods.

Now, run Update-Database again and watch it execute your new migration script, creating the appropriate tables in the database.

Step 7: Re-confirm and commit. Build, test, run. Ensure that everything is running then commit the changes.

Step 8: Let the rest of your team know how to proceed. When the next person updates, EF won't know what hit it given that the scripts it had run before don't exist. But, assuming that local databases can be blown away and re-created, this is all good. They will need to drop their local database and add create it from EF again. If they had local changes and pending migrations, I'd recommend they create their DB again on master, switch to their feature branch and re-create those migration scripts from scratch.

The simpliest way is to use ps and grep:

command="httpd"
running=`ps ax | grep -v grep | grep $command | wc -l`
if [ running -gt 0 ]; then
    echo "Command is running"
else
    echo "Command is not running"
fi

If your command has some command arguments, then you can also put more 'grep cmd_arg1' after 'grep $command' to filter out other possible processes that you are not interested in.

Example: show me if any java process with supplied argument:

-Djava.util.logging.config.file=logging.properties

is running

ps ax | grep -v grep | grep java | grep java.util.logging.config.file=logging.properties | wc -l

Just as there are printer drivers that do not connect to a printer at all but rather write to a PDF file, analogously there are virtual audio drivers available that do not connect to a physical microphone at all but can pipe input from other sources such as files or other programs.

I hope I'm not breaking any rules by recommending free/donation software, but VB-Audio Virtual Cable should let you create a pair of virtual input and output audio devices. Then you could play an MP3 into the virtual output device and then set the virtual input device as your "microphone". In theory I think that should work.

If all else fails, you could always roll your own virtual audio driver. Microsoft provides some sample code but unfortunately it is not applicable to the older Windows XP audio model. There is probably sample code available for XP too.

Another way of doing this in plain bash is making use of the rev command like this:

cat file | rev | cut -d" " -f1 | rev | tr -d "." | tr "\n" ","

Basically, you reverse the lines of the file, then split them with cut using space as the delimiter, take the first field that cut produces and then you reverse the token again, use tr -d to delete unwanted chars and tr again to replace newline chars with ,

Also, you can avoid the first cat by doing:

rev < file | cut -d" " -f1 | rev | tr -d "." | tr "\n" ","

I have run into problems in the past with IE and the css:hover selector so the approach that I have taken, is to use a custom directive.

.directive('hoverClass', function () {
    return {
        restrict: 'A',
        scope: {
            hoverClass: '@'
        },
        link: function (scope, element) {
            element.on('mouseenter', function() {
                element.addClass(scope.hoverClass);
            });
            element.on('mouseleave', function() {
                element.removeClass(scope.hoverClass);
            });
        }
    };
})

then on the element itself you can add the directive with the class names that you want enabled when the mouse is over the the element for example:

<li data-ng-repeat="item in social" hover-class="hover tint" class="social-{{item.name}}" ng-mouseover="hoverItem(true);" ng-mouseout="hoverItem(false);"
                index="{{$index}}"><i class="{{item.icon}}"
                box="course-{{$index}}"></i></li>

This should add the class hover and tint when the mouse is over the element and doesn't run the risk of a scope variable name collision. I haven't tested but the mouseenter and mouseleave events should still bubble up to the containing element so in the given scenario the following should still work

<div hover-class="hover" data-courseoverview data-ng-repeat="course in courses | orderBy:sortOrder | filter:search"
 data-ng-controller ="CourseItemController"
 data-ng-class="{ selected: isSelected }">

providing of course that the li's are infact children of the parent div

var data = 'json string ?';
var jdata = null;
try
{
    jdata = $.parseJSON(data);  
}catch(e)
{}

if(jdata)
{
//use jdata
}else
{
//use data
}

As the instruction said "might need gpg2"

In mac, you can try install it with homebrew

$ brew install gpg2 

just use this:

<script>
  var ctx = document.getElementById("myChart").getContext('2d');
  var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
      labels: ["1","2","3","4","5","6","7","8","9","10","11",],
      datasets: [{
        label: 'YOUR LABEL',
        backgroundColor: [
          "#566573",
          "#99a3a4",
          "#dc7633",
          "#f5b041",
          "#f7dc6f",
          "#82e0aa",
          "#73c6b6",
          "#5dade2",
          "#a569bd",
          "#ec7063",
          "#a5754a"
        ],
        data: [12, 19, 3, 17, 28, 24, 7, 2,4,14,6],            
      },]
    },
    //HERE COMES THE AXIS Y LABEL
    options : {
      scales: {
        yAxes: [{
          scaleLabel: {
            display: true,
            labelString: 'probability'
          }
        }]
      }
    }
  });
</script>

Since the fields are empty they are not valid, so the ng-invalid and ng-invalid-required classes are added properly.

You can use the class ng-pristine to check out whether the fields have already been used or not.

In PLSQL block, columns of select statements must be assigned to variables, which is not the case in SQL statements.

The second BEGIN's SQL statement doesn't have INTO clause and that caused the error.

DECLARE
   PROD_ROW_ID   VARCHAR (10) := NULL;
   VIS_ROW_ID    NUMBER;
   DSC           VARCHAR (512);
BEGIN
   SELECT ROW_ID
     INTO VIS_ROW_ID
     FROM SIEBEL.S_PROD_INT
    WHERE PART_NUM = 'S0146404';

   BEGIN
      SELECT    RTRIM (VIS.SERIAL_NUM)
             || ','
             || RTRIM (PLANID.DESC_TEXT)
             || ','
             || CASE
                   WHEN PLANID.HIGH = 'TEST123'
                   THEN
                      CASE
                         WHEN TO_DATE (PROD.START_DATE) + 30 > SYSDATE
                         THEN
                            'Y'
                         ELSE
                            'N'
                      END
                   ELSE
                      'N'
                END
             || ','
             || 'GB'
             || ','
             || RTRIM (TO_CHAR (PROD.START_DATE, 'YYYY-MM-DD'))
        INTO DSC
        FROM SIEBEL.S_LST_OF_VAL PLANID
             INNER JOIN SIEBEL.S_PROD_INT PROD
                ON PROD.PART_NUM = PLANID.VAL
             INNER JOIN SIEBEL.S_ASSET NETFLIX
                ON PROD.PROD_ID = PROD.ROW_ID
             INNER JOIN SIEBEL.S_ASSET VIS
                ON VIS.PROM_INTEG_ID = PROD.PROM_INTEG_ID
             INNER JOIN SIEBEL.S_PROD_INT VISPROD
                ON VIS.PROD_ID = VISPROD.ROW_ID
       WHERE     PLANID.TYPE = 'Test Plan'
             AND PLANID.ACTIVE_FLG = 'Y'
             AND VISPROD.PART_NUM = VIS_ROW_ID
             AND PROD.STATUS_CD = 'Active'
             AND VIS.SERIAL_NUM IS NOT NULL;
   END;
END;
/

References

http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/static.htm#LNPLS00601 http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/selectinto_statement.htm#CJAJAAIG http://pls-00428.ora-code.com/

I received this message trying to run STS 3.7.0 on java 6 jdk, after pointing to java jdk 7 (-vm param in STS.ini) the issue disappeared.

The token has to be placed in an Authorization header according to the following format:

Authorization: Bearer [Token_Value]

Code below:

import urllib2
import json

def get_auth_token():
    """
    get an auth token
    """
    req=urllib2.Request("https://xforce-api.mybluemix.net/auth/anonymousToken")
    response=urllib2.urlopen(req)
    html=response.read()
    json_obj=json.loads(html)
    token_string=json_obj["token"].encode("ascii","ignore")
    return token_string

def get_response_json_object(url, auth_token):
    """
    returns json object with info
    """
    auth_token=get_auth_token()
    req=urllib2.Request(url, None, {"Authorization": "Bearer %s" %auth_token})
    response=urllib2.urlopen(req)
    html=response.read()
    json_obj=json.loads(html)
    return json_obj

It is also possible to use FormData(). But you need to set contentType as false:

var data = new FormData();
data.append('name', 'Bob'); 

function sendData() {
    $.ajax({
        url: '/helloworld',
        type: 'POST',
        contentType: false,
        data: data,
        dataType: 'json'
    });
}

Have the style for the parent div and the child divs' set as following. It worked for my case, hope it helps you as well..

<div id="parentDiv">
  <div id="backdrop"><img alt="" src='/backdrop.png' /></div>
  <div id="curtain" style="background-image:url(/curtain.png);background-position:100px 200px; height:250px; width:500px;">&nbsp;</div>
</div>

in your JS:

document.getElementById('parentDiv').style.position = 'relative';
document.getElementById('backdrop').style.position = 'absolute';
document.getElementById('curtain').style.position = 'absolute';
document.getElementById('curtain').style.zIndex= '2';//this number has to be greater than the zIndex of 'backdrop' if you are setting any

or in your CSS as in this working example:::

#parentDiv{_x000D_
  background: yellow;_x000D_
  height: 500px;_x000D_
  width: 500px;_x000D_
  position: relative;_x000D_
}_x000D_
#backdrop{_x000D_
  background: red;_x000D_
  height: 300px;_x000D_
  width: 300px;_x000D_
  position: absolute;_x000D_
}_x000D_
#curtain{_x000D_
  background: green;_x000D_
  height: 100px;_x000D_
  width: 100px;_x000D_
  position: absolute;_x000D_
  z-index: 2;_x000D_
  margin: 100px 0px 150px 100px;_x000D_
}

<div id="parentDiv"><h2>_x000D_
  THIS IS PARENT DIV_x000D_
  </h2>_x000D_
  <div id="backdrop"><h4>_x000D_
  THIS IS BACKDROP DIV_x000D_
  </h4></div>_x000D_
  <div id="curtain"><h6>_x000D_
  THIS IS CURTAIN DIV_x000D_
  </h6></div>_x000D_
</div>

Maybe a bit simpler approach with ngInit and Lodash's debounce method without the need of custom directive:

Controller:

$scope.items = [1, 2, 3, 4];

$scope.refresh = _.debounce(function() {
    // Debounce has timeout and prevents multiple calls, so this will be called 
    // once the iteration finishes
    console.log('we are done');
}, 0);

Template:

<ul>
    <li ng-repeat="item in items" ng-init="refresh()">{{item}}</li>
</ul>

Update

There is even simpler pure AngularJS solution using ternary operator:

Template:

<ul>
    <li ng-repeat="item in items" ng-init="$last ? doSomething() : null">{{item}}</li>
</ul>

Be aware that ngInit uses pre-link compilation phase - i.e. the expression is invoked before child directives are processed. This means that still an asynchronous processing might be required.

I guess you mean this:

class Value:
    def __init__(self, v=None):
        self.v = v

v1 = Value(1)
v2 = Value(2)

d = {'a': v1, 'b': v1, 'c': v2, 'd': v2}
d['a'].v += 1

d['b'].v == 2 # True

• Python's strings and numbers are immutable objects,
• So, if you want d['a'] and d['b'] to point to the same value that "updates" as it changes, make the value refer to a mutable object (user-defined class like above, or a dict, list, set).
• Then, when you modify the object at d['a'], d['b'] changes at same time because they both point to same object.

simple with generated links :) html:

<span class='preview' data-image-url="imageUrl.png" data-container="body" data-toggle="popover" data-placement="top" >preview</span>

js:

$('.preview').popover({
    'trigger':'hover',
    'html':true,
    'content':function(){
        return "<img src='"+$(this).data('imageUrl')+"'>";
    }
});

http://jsfiddle.net/A4zHC/

There are two aspects to your questions: what are the technical aspects of using const instead of var and what are the human-related aspects of doing so.

The technical difference is significant. In compiled languages, a constant will be replaced at compile-time and its use will allow for other optimizations like dead code removal to further increase the runtime efficiency of the code. Recent (loosely used term) JavaScript engines actually compile JS code to get better performance, so using the const keyword would inform them that the optimizations described above are possible and should be done. This results in better performance.

The human-related aspect is about the semantics of the keyword. A variable is a data structure that contains information that is expected to change. A constant is a data structure that contains information that will never change. If there is room for error, var should always be used. However, not all information that never changes in the lifetime of a program needs to be declared with const. If under different circumstances the information should change, use var to indicate that, even if the actual change doesn't appear in your code.

TLS 1.1 and TLS 1.2 are supported since OpenSSL 1.0.1

Forcing TLS 1.1 and 1.2 are only supported since curl 7.34.0

You should consider an upgrade.

SELECT
  student.firstname,
  student.lastname,
  exam.name,
  exam.date,
  grade.grade
FROM grade
 INNER JOIN student
   ON student.studentId = grade.fk_studentId
 INNER JOIN exam
   ON exam.examId = grade.fk_examId
 GROUP BY grade.gradeId
 ORDER BY exam.date

The latest plugin is tidy2, which can be installed through Plugins>Plugin Manager>Show Plugin Manager.

I suggest editing config 1 and setting quote-marks: no, especially if you have script that makes use of quotes.

Also, tidying more than once can result in inserting ampersands the first time and then replacing the ampersands the second time. You may want to play with the config to get it to where you need it.

This SQL grants on all databases but just basic privileges. They're enough for Drupal or Wordpress and as a nicety, allows one developer account for local projects.

GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, 
    INDEX, ALTER, CREATE TEMPORARY TABLES 
ON *.* TO 'username'@'localhost' IDENTIFIED BY 'password';

It sounds like you want to do a nearest neighbour search with some bound on the distance. SQL does not support anything like this as far as I am aware and you would need to use an alternative data structure such as an R-tree or kd-tree.

This is code that I have effectively used before, passing "/" as the strPath parameter.

public static Cookie eraseCookie(String strCookieName, String strPath) {
    Cookie cookie = new Cookie(strCookieName, "");
    cookie.setMaxAge(0);
    cookie.setPath(strPath);

    return cookie;
}

If you are using JSP 2.0 and above It will come with the EL support: so that you can write in plain english and use and with empty operators to write your test:

<c:if test="${(empty object_1.attribute_A) and (empty object_2.attribute_B)}">

How about

mydatagrid.UpdateLayout();

It's kind of a hack, but I think this is probably the best way to do it. The dashed line will always be on the bottom, regardless of the height.

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

    <item>
        <shape android:shape="rectangle" >
            <solid android:color="#1bd4f6" />
        </shape>
    </item>

    <item android:top="-2dp" android:right="-2dp" android:left="-2dp">
        <shape>
            <solid android:color="@android:color/transparent" />
            <stroke
                android:dashGap="10px"
                android:dashWidth="10px"
                android:width="1dp"
                android:color="#ababb2" />
        </shape>
    </item>

</layer-list>

Explanation:

The second shape is transparent rectangle with a dashed outline. The key in making the border only appear along the bottom lies in the negative margins set the other sides. These negative margins "push" the dashed line outside the drawn area on those sides, leaving only the line along the bottom. One potential side-effect (which I haven't tried) is that, for views that draw outside their own bounds, the negative-margin borders may become visible.

HMSET is deprecated. You can now use HSET with a dictionary as follows:

import redis
r = redis.Redis('localhost')

key = "hashexample" 
queue_entry = { 
    "version":"1.2.3", 
    "tag":"main", 
    "status":"CREATED",  
    "timeout":"30"
    }
r.hset(key,None,None,queue_entry)

Adding the JsonProperty also ensures safety in case someone decides they want to change one of the property names not realizing the class in question will be serialized to a Json object. If they change the property name the JsonProperty ensures it will be used in the Json object, and not the property name.

Heres what worked for me, had a similar problem on my new laptop which had windows 10.

• Search for "Turn windows features on or off"
• Check "Internet Information Services"
• Check "World Wide Web Services"
• Check "Application Development Features"
• Enable all items under this

try again, now it should work.

//book[title[@lang='it']]

is actually equivalent to

 //book[title/@lang = 'it']

I tried it using vtd-xml, both expressions spit out the same result... what xpath processing engine did you use? I guess it has conformance issue Below is the code

import com.ximpleware.*;
public class test1 {
  public static void main(String[] s) throws Exception{
      VTDGen vg = new VTDGen();
      if (vg.parseFile("c:/books.xml", true)){
          VTDNav vn = vg.getNav();
          AutoPilot ap = new AutoPilot(vn);
          ap.selectXPath("//book[title[@lang='it']]");
                  //ap.selectXPath("//book[title/@lang='it']");

          int i;
          while((i=ap.evalXPath())!=-1){
              System.out.println("index ==>"+i);
          }
          /*if (vn.endsWith(i, "< test")){
             System.out.println(" good ");  
          }else
              System.out.println(" bad ");*/

      }
  }
}

To add further information to this.

I have recently upgraded my Ubuntu installation to Ubuntu 10.04 LTS (Lucid Lynx) which in turn updated my Java version to:

Java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)

And now the emulator (although takes a while to start) seems to be running faster than previously.

It might be worth people upgrading their JVM.

The pythonic way would be:

mystring = 'Hello World, this should work!'
find_all = lambda c,s: [x for x in range(c.find(s), len(c)) if c[x] == s]

# s represents the search string
# c represents the character string

find_all(mystring,'o')    # will return all positions of 'o'

[4, 7, 20, 26] 
>>> 

As Josh has stated above, you want to give each one the same name (letter, button, etc.) and all of them work. Then you want to surround all of these with a form tag:

<form name="myLetters" action="yourScript.php" method="POST">
<!-- Enter your values here with the following syntax: -->
<input type="radio" name="letter" value="A" /> A
<!-- Then add a submit value & close your form -->
<input type="submit" name="submit" value="Choose Letter!" />
</form>

Then, in the PHP script "yourScript.php" as defined by the action attribute, you can use:

$_POST['letter']

To get the value chosen.

You can do it like this:

String.prototype.toDOM=function(){
  var d=document
     ,i
     ,a=d.createElement("div")
     ,b=d.createDocumentFragment();
  a.innerHTML=this;
  while(i=a.firstChild)b.appendChild(i);
  return b;
};

var foo="<img src='//placekitten.com/100/100'>foo<i>bar</i>".toDOM();
document.body.appendChild(foo);

It is a number, not a string. Numbers don't have a toLowerCase() function because numbers do not have case in the first place.

To make the function run without error, run it on a string.

var ans = "334";

Of course, the output will be the same as the input since, as mentioned, numbers don't have case in the first place.

First set path of python https://stackoverflow.com/questions/3701646/how-to-add-to-the-pythonpath-in-windows

and run python file

python filename.py

command line argument with python

python filename.py command-line argument

Well presumably it's not using the same version of Java when running it externally. Look through the startup scripts carefully to find where it picks up the version of Java to run. You should also check the startup logs to see whether they indicate which version is running.

Alternatively, unless you need the Java 7 features, you could always change your compiler preferences in Eclipse to target 1.6 instead.

This is the command to use to tell Gradle to upgrade the wrapper such that it will grab the distribution versions of libraries that includes source code:

./gradlew wrapper --gradle-version <version> --distribution-type all

Specifying the distribution-type with "all" will make sure Gradle downloads source files for use by your development environment.

Pros:

• IDEs will have immediate access to source code. For example, Intellij IDEA won't prompt you to update your build scripts to include the source distro (because this command already did that)

Cons:

• Longer/Bigger build process because it's downloading source code. This is a waste of time/space on a build or CI server where the source code is not necessary.

Please comment or provide another answer if you know of any command line option to tell Gradle not to download sources on a build server.

For the question:

How to save Console.Writeline Outputs to text file?

I would use Console.SetOut as others have mentioned.

However, it looks more like you are keeping track of your program flow. I would consider using Debug or Trace for keeping track of the program state.

It works similar the console except you have more control over your input such as WriteLineIf.

Debug will only operate when in debug mode where as Trace will operate in both debug or release mode.

They both allow for listeners such as output files or the console.

TextWriterTraceListener tr1 = new TextWriterTraceListener(System.Console.Out);
Debug.Listeners.Add(tr1);

TextWriterTraceListener tr2 = new TextWriterTraceListener(System.IO.File.CreateText("Output.txt"));
Debug.Listeners.Add(tr2);

-http://support.microsoft.com/kb/815788

This is because of ng-include which creates a new child scope, so $scope.lineText isn’t changed. I think that this refers to the current scope, so this.lineText should be set.

New Note: You probably don't want or need to do this. What you probably want to do is just put those types of command dependencies for build/test etc. in the devDependencies section of your package.json. Anytime you use something from scripts in package.json your devDependencies commands (in node_modules/.bin) act as if they are in your path.

For example:

npm i --save-dev mocha # Install test runner locally
npm i --save-dev babel # Install current babel locally

Then in package.json:

// devDependencies has mocha and babel now

"scripts": {
  "test": "mocha",
  "build": "babel -d lib src",
  "prepublish": "babel -d lib src"
}

Then at your command prompt you can run:

npm run build # finds babel
npm test # finds mocha

npm publish # will run babel first

But if you really want to install globally, you can add a preinstall in the scripts section of the package.json:

"scripts": {
  "preinstall": "npm i -g themodule"
}

So actually my npm install executes npm install again .. which is weird but seems to work.

Note: you might have issues if you are using the most common setup for npm where global Node package installs required sudo. One option is to change your npm configuration so this isn't necessary:

npm config set prefix ~/npm, add $HOME/npm/bin to $PATH by appending export PATH=$HOME/npm/bin:$PATH to your ~/.bashrc.

If you're file isn't too big you can always sort by the column that has the - and once they're all together just highlight and delete. Then re-sort back to what you want.

The error occurs because the object's ID is set. Hibernate distinguishes between transient and detached objects and persist works only with transient objects. If persist concludes the object is detached (which it will because the ID is set), it will return the "detached object passed to persist" error. You can find more details here and here.

However, this only applies if you have specified the primary key to be auto-generated: if the field is configured to always be set manually, then your code works.

In my case I forgot to add the google maps library

<application>
    ....

    <uses-library android:name="com.google.android.maps" />
</application>

Also, check that you're not missing the preceding dot before the activity path

<activity android:name=".activities.MainActivity"/>

There is the easy way

HTML:

<input type="checkbox" name="test[]" />x
<input type="checkbox" name="test[]"  />y
<input type="checkbox" name="test[]" />z
<button type="button" id="submit">Submit</button>

JQUERY:

$("#submit").on("click",function(){
    if (($("input[name*='test']:checked").length)<=0) {
        alert("You must check at least 1 box");
    }
    return true;
});

For this you not need any plugin. Enjoy;)

This was happening in my project because I was using an XML resource to set the version code.

AndroidManifest.xml:
android:versionCode="@integer/app_version_code"

app.xml:
<integer name="app_version_code">64</integer>

This wasn't a problem in prior versions of adb, however, as of platform-tools r16 this is no longer being resolved to the proper integer. You can either force the re-install using adb -r or avoid the issue entirely by using a literal in the manifest:

android:versionCode="64"

Don't call finish() in onCreate() method then it works fine.

Here is media queries for common device breakpoints.

    /* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
/* Styles */
}

/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px) {
/* Styles */
}

/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px) {
/* Styles */
}

/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {
/* Styles */
}

/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) {
/* Styles */
}

/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) {
/* Styles */
}
/**********
iPad 3
**********/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen  and (min-width : 1224px) {
/* Styles */
}

/* Large screens ----------- */
@media only screen  and (min-width : 1824px) {
/* Styles */
}

/* iPhone 4 ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

If you have:

int i = 10;
int x = ++i;

then x will be 11.

But if you have:

int i = 10;
int x = i++;

then x will be 10.

Note as Eric points out, the increment occurs at the same time in both cases, but it's what value is given as the result that differs (thanks Eric!).

Generally, I like to use ++i unless there's a good reason not to. For example, when writing a loop, I like to use:

for (int i = 0; i < 10; ++i) {
}

Or, if I just need to increment a variable, I like to use:

++x;

Normally, one way or the other doesn't have much significance and comes down to coding style, but if you are using the operators inside other assignments (like in my original examples), it's important to be aware of potential side effects.

list.set(5,"newString");  

• Reference

Separate it into 2 triggers. One for the deletion and one for the insertion\ update.

Despite that this question has already an accepted answer, I think that the exact details of why this is happening are still missing. So I think there might be a place for one more answer.

If you add the required hadoop-aws dependency, your code should work.

Starting Hadoop 2.6.0, s3 FS connector has been moved to a separate library called hadoop-aws. There is also a Jira for that: Move s3-related FS connector code to hadoop-aws.

This means that any version of spark, that has been built against Hadoop 2.6.0 or newer will have to use another external dependency to be able to connect to the S3 File System.
Here is an sbt example that I have tried and is working as expected using Apache Spark 1.6.2 built against Hadoop 2.6.0:

libraryDependencies += "org.apache.hadoop" % "hadoop-aws" % "2.6.0"

In my case, I encountered some dependencies issues, so I resolved by adding exclusion:

libraryDependencies += "org.apache.hadoop" % "hadoop-aws" % "2.6.0" exclude("tomcat", "jasper-compiler") excludeAll ExclusionRule(organization = "javax.servlet")

On other related note, I have yet to try it, but that it is recommended to use "s3a" and not "s3n" filesystem starting Hadoop 2.6.0.

The third generation, s3a: filesystem. Designed to be a switch in replacement for s3n:, this filesystem binding supports larger files and promises higher performance.

Bear in mind that using WaitForSingleObject can get you into trouble in this scenario. The following is snipped from a tip on my website:

The problem arises because your application has a window but isn't pumping messages. If the spawned application invokes SendMessage with one of the broadcast targets (HWND_BROADCAST or HWND_TOPMOST), then the SendMessage won't return to the new application until all applications have handled the message - but your app can't handle the message because it isn't pumping messages.... so the new app locks up, so your wait never succeeds.... DEADLOCK.

If you have absolute control over the spawned application, then there are measures you can take, such as using SendMessageTimeout rather than SendMessage (e.g. for DDE initiations, if anybody is still using that). But there are situations which cause implicit SendMessage broadcasts over which you have no control, such as using the SetSysColors API for instance.

The only safe ways round this are:

1. split off the Wait into a separate thread, or
2. use a timeout on the Wait and use PeekMessage in your Wait loop to ensure that you pump messages, or
3. use the MsgWaitForMultipleObjects API.

"\n" is just a line feed (Unicode U+000A). This is typically the Unix line separator.

"\r\n" is a carriage return (Unicode U+000D) followed by a line feed (Unicode U+000A). This is typically the Windows line separator.

While @pritam kumar gives a good overview the 5th point is not true.

Persistence Context can be either Transaction Scoped-- the Persistence Context 'lives' for the length of the transaction, or Extended-- the Persistence Context spans multiple transactions.

https://blogs.oracle.com/carolmcdonald/entry/jpa_caching

JPA's EntityManager and Hibernate's Session offer an extended Persistence Context.

Here's more modern approach:

.parent {display: flow-root;} 

No more clearfixes.

p.s. Using overflow: hidden; hides the box-shadow so...

Mustache templates are, by design, very simple; the homepage even says:

Logic-less templates.

So the general approach is to do your logic in JavaScript and set a bunch of flags:

if(notified_type == "Friendship")
    data.type_friendship = true;
else if(notified_type == "Other" && action == "invite")
    data.type_other_invite = true;
//...

and then in your template:

{{#type_friendship}}
    friendship...
{{/type_friendship}}
{{#type_other_invite}}
    invite...
{{/type_other_invite}}

If you want some more advanced functionality but want to maintain most of Mustache's simplicity, you could look at Handlebars:

Handlebars provides the power necessary to let you build semantic templates effectively with no frustration.

Mustache templates are compatible with Handlebars, so you can take a Mustache template, import it into Handlebars, and start taking advantage of the extra Handlebars features.

Accessing & Assigning the Session Variable using Javascript:

Assigning the ASP.NET Session Variable using Javascript:

 <script type="text/javascript">
function SetUserName()
{
    var userName = "Shekhar Shete";
    '<%Session["UserName"] = "' + userName + '"; %>';
     alert('<%=Session["UserName"] %>');
}
</script>

Accessing ASP.NET Session variable using Javascript:

<script type="text/javascript">
    function GetUserName()
    {

        var username = '<%= Session["UserName"] %>';
        alert(username );
    }
</script>

it's simple only you have do is to give

background: rgba(0,0,0,0.3)

& for IE use this filter

background: transparent;
zoom: 1;    
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#4C000000,endColorstr=#4C000000); /* IE 6 & 7 */
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#4C000000,endColorstr=#4C000000)"; /* IE8 */

you can generate your rgba filter from here http://kimili.com/journal/rgba-hsla-css-generator-for-internet-explorer/

Press Ctrl + Space to get a autocomplete hint.

Your question is pretty hard to decode, but I'll try taking a stab at it.

You say:

I want to create a json object having two fields uniqueIDofSelect and optionValue in javascript.

And then you say:

I need output like

[{"selectID":2,"optionValue":"2"},
{"selectID":4,"optionvalue":"1"}]

Well, this example output doesn't have the field named uniqueIDofSelect, it only has optionValue.

Anyway, you are asking for array of objects...

Then in the comment to michaels answer you say:

It creates json object array. but I need only one json object.

So you don't want an array of objects?

What do you want then?

Please make up your mind.

I believe your solution will only look in the root of each directory path contained in the @INC array. You need something recursive, like:

 perl -e 'foreach (@INC) {
    print `find $_ -type f -name "*.pm"`;
 }'

Another workaround is just to set the li item to flex or inline-flex. Depending on the circumstances that may suit you better. In case you have a real icon / image placed in the HTML the default flex position is on the central horizontal line.

It's initialized to null if you do nothing, as are all reference types.

alternatively, SQL%ROWCOUNT you can use this within the procedure without any need to declare a variable

If you want to be case-insensitive, you can just do:

b = True if bool_str.lower() == 'true' else False

Example usage:

>>> bool_str = 'False'
>>> b = True if bool_str.lower() == 'true' else False
>>> b
False
>>> bool_str = 'true'
>>> b = True if bool_str.lower() == 'true' else False
>>> b
True

For a GUI approach I would take a look at Activity Monitor under Management and sort by CPU.

http://docs.jquery.com/Events/unload#fn

jQuery:

$(window).unload( function () { alert("Bye now!"); } );

or javascript:

window.onunload = function(){alert("Bye now!");}

If you are interested to detect simple IR light blob through haar cascade, it will be very odd to do. Because simple IR blob does not have enough features to be trained through opencv like other objects (face, eyes,nose etc). Because IR is just a simple light having only one feature of brightness in my point of view. But if you want to learn how to train a classifier following link will help you alot.

http://note.sonots.com/SciSoftware/haartraining.html

And if you just want to detect IR blob, then you have two more possibilities, one is you go for DIP algorithms to detect bright region and the other one which I recommend you is you can use an IR cam which just pass the IR blob and you can detect easily the IR blob by using opencv blob functiuons. If you think an IR cam is expansive, you can make simple webcam to an IR cam by removing IR blocker (if any) and add visible light blocker i.e negative film, floppy material or any other. You can check the following link to convert simple webcam to IR cam.

http://www.metacafe.com/watch/385098/transform_your_webcam_into_an_infrared_cam/

I had good luck with WPL Trees before. A tree variant that minimizes the weighted path length of the branches. Weight is determined by node access, so that frequently-accessed nodes migrate closer to the root. Not sure how they compare to splay trees, as I've never used those.

You have to retrieve it from the HOST header.

var host = req.get('host');

It is optional with HTTP 1.0, but required by 1.1. And, the app can always impose a requirement of its own.

If this is for supporting cross-origin requests, you would instead use the Origin header.

var origin = req.get('origin');

Note that some cross-origin requests require validation through a "preflight" request:

req.options('/route', function (req, res) {
    var origin = req.get('origin');
    // ...
});

If you're looking for the client's IP, you can retrieve that with:

var userIP = req.socket.remoteAddress;

• message.socket.
• socket.remoteAddress

Note that, if your server is behind a proxy, this will likely give you the proxy's IP. Whether you can get the user's IP depends on what info the proxy passes along. But, it'll typically be in the headers as well.

I am guessing you are using a 32 bit eclipse with 32 bit JVM. It wont allow heapsize above what you have specified.

Using a 64-bit Eclipse with a 64-bit JVM helps you to start up eclipse with much larger memory. (I am starting with -Xms1024m -Xmx4000m)

$("#elementName option").text(); 

This will give selected text of Combo-Box.

$("#elementName option").val();

This will give selected value associated selected item in Combo-Box.

$("#elementName option").length;

It will give the multi-select combobox values in the array and length will give number of element of the array.

Note:#elementName is id the Combo-box.

I would like to recommend flask-empty at GitHub.

It provides an easy way to understand Blueprints, multiple views and extensions.

You can use a FileOutputStream for this.

FileOutputStream fos = null;
try {
    fos = new FileOutputStream(new File("myFile")); 
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    // Put data in your baos

    baos.writeTo(fos);
} catch(IOException ioe) {
    // Handle exception here
    ioe.printStackTrace();
} finally {
    fos.close();
}

I can't believe all these convoluted answers. Assuming the key is of type: string (or use 'var' if you're a lazy developer): -

List<string> listOfKeys = theCollection.Keys.ToList();

Use the %02X format parameter:

printf("%02X",word[i]);

More info can be found here: http://www.cplusplus.com/reference/cstdio/printf/

Just add the following rules to the parent element:

display: flex;
justify-content: center; /* align horizontal */
align-items: center; /* align vertical */

Here's a sample demo (Resize window to see the image align)

Browser support for Flexbox nowadays is quite good.

For cross-browser compatibility for display: flex and align-items, you can add the older flexbox syntax as well:

display: -webkit-box;
display: -webkit-flex;
display: -moz-box;
display: -ms-flexbox;
display: flex;
-webkit-flex-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;

You cannot set a maximum value (other than choosing a datatype which cannot hold large numbers, but there are none that have the limit you're asking for). You can check that with LAST_INSERT_ID() after inserting to get the id of the newly created member, and if it is too big handle it in your application code (e.g., delete and reject the member).

Why do you want an upper limit?

One option to try is to put the image in the drawable-nodpi folder and set background of a layout to the drawable resource id.

This definitely works with scaling down, I haven't tested with scaling up though.

For Java 7 you can use try-with-resource for more compact code:

private static boolean available(int port) {
    try (Socket ignored = new Socket("localhost", port)) {
        return false;
    } catch (IOException ignored) {
        return true;
    }
}

You have mostly the right idea, it's just the sending of the form that is wrong. The form belongs in the body of the request.

req, err := http.NewRequest("POST", url, strings.NewReader(form.Encode()))

I like to use a custom "foreach" function of sorts for these kinds of things:

function Each( objs, func )
{
    if ( objs.length ) for ( var i = 0, ol = objs.length, v = objs[ 0 ]; i < ol && func( v, i ) !== false; v = objs[ ++i ] );
    else for ( var p in objs ) if ( func( objs[ p ], p ) === false ) break;
}

(Can't remember where I found the above function, but it has been quite useful.)

Then after fetching your objects (to elements in this example) just do

Each( elements, function( element )
{
    element.addEventListener( "mouseover", function()
    {
        element.classList.add( "active" );
        //element.setAttribute( "class", "active" );
        element.setAttribute( "src", "newsource" );
    });

    // Remove class and new src after "mouseover" ends, if you wish.
    element.addEventListener( "mouseout", function()
    {
        element.classList.remove( "active" );
        element.setAttribute( "src", "originalsource" );
    });
});

classList is a simple way for handling elements' classes. Just needs a shim for a few browsers. If you must use setAttribute you must remember that whatever is set with it will overwrite the previous values.

EDIT: Forgot to mention that you need to use attachEvent instead of addEventListener on some IE versions. Test with if ( document.addEventListener ) {...}.

Sending and receiving data in JSON format using POST method

// Sending and receiving data in JSON format using POST method
//
var xhr = new XMLHttpRequest();
var url = "url";
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-Type", "application/json");
xhr.onreadystatechange = function () {
    if (xhr.readyState === 4 && xhr.status === 200) {
        var json = JSON.parse(xhr.responseText);
        console.log(json.email + ", " + json.password);
    }
};
var data = JSON.stringify({"email": "[email protected]", "password": "101010"});
xhr.send(data);

Sending and receiving data in JSON format using GET method

// Sending a receiving data in JSON format using GET method
//      
var xhr = new XMLHttpRequest();
var url = "url?data=" + encodeURIComponent(JSON.stringify({"email": "[email protected]", "password": "101010"}));
xhr.open("GET", url, true);
xhr.setRequestHeader("Content-Type", "application/json");
xhr.onreadystatechange = function () {
    if (xhr.readyState === 4 && xhr.status === 200) {
        var json = JSON.parse(xhr.responseText);
        console.log(json.email + ", " + json.password);
    }
};
xhr.send();

Handling data in JSON format on the server-side using PHP

<?php
// Handling data in JSON format on the server-side using PHP
//
header("Content-Type: application/json");
// build a PHP variable from JSON sent using POST method
$v = json_decode(stripslashes(file_get_contents("php://input")));
// build a PHP variable from JSON sent using GET method
$v = json_decode(stripslashes($_GET["data"]));
// encode the PHP variable to JSON and send it back on client-side
echo json_encode($v);
?>

The limit of the length of an HTTP Get request is dependent on both the server and the client (browser) used, from 2kB - 8kB. The server should return 414 (Request-URI Too Long) status if an URI is longer than the server can handle.

Note Someone said that I could use state names instead of state values; in other words I could use xhr.readyState === xhr.DONE instead of xhr.readyState === 4 The problem is that Internet Explorer uses different state names so it's better to use state values.

Big difference, TABLOCK will try to grab "shared" locks, and TABLOCKX exclusive locks.

If you are in a transaction and you grab an exclusive lock on a table, EG:

SELECT 1 FROM TABLE WITH (TABLOCKX)

No other processes will be able to grab any locks on the table, meaning all queries attempting to talk to the table will be blocked until the transaction commits.

TABLOCK only grabs a shared lock, shared locks are released after a statement is executed if your transaction isolation is READ COMMITTED (default). If your isolation level is higher, for example: SERIALIZABLE, shared locks are held until the end of a transaction.

Shared locks are, hmmm, shared. Meaning 2 transactions can both read data from the table at the same time if they both hold a S or IS lock on the table (via TABLOCK). However, if transaction A holds a shared lock on a table, transaction B will not be able to grab an exclusive lock until all shared locks are released. Read about which locks are compatible with which at msdn.

Both hints cause the db to bypass taking more granular locks (like row or page level locks). In principle, more granular locks allow you better concurrency. So for example, one transaction could be updating row 100 in your table and another row 1000, at the same time from two transactions (it gets tricky with page locks, but lets skip that).

In general granular locks is what you want, but sometimes you may want to reduce db concurrency to increase performance of a particular operation and eliminate the chance of deadlocks.

In general you would not use TABLOCK or TABLOCKX unless you absolutely needed it for some edge case.

If you have Cygwin installed (which I strongly recommend for a variety of reasons), you could use the 'file' utility on the DLL

file <filename>

which would give an output like this:

icuuc36.dll: MS-DOS executable PE  for MS Windows (DLL) (GUI) Intel 80386 32-bit

SELECT t.*,(select count(*) from city as tt where tt.name=t.name) as count FROM `city` as t where (select count(*) from city as tt where tt.name=t.name) > 1 order by count desc

Replace city with your Table. Replace name with your field name

Change the backend to automatic:

Tools > preferences > IPython console > Graphics > Graphics backend > Backend: Automatic

Then close and open Spyder.

MULTIPROCESSING

• Multiprocessing adds CPUs to increase computing power.
• Multiple processes are executed concurrently.
• Creation of a process is time-consuming and resource intensive.
• Multiprocessing can be symmetric or asymmetric.

• The multiprocessing library in Python uses separate memory space, multiple CPU cores, bypasses GIL limitations in CPython, child processes are killable (ex. function calls in program) and is much easier to use.
• Some caveats of the module are a larger memory footprint and IPC’s a little more complicated with more overhead.

MULTITHREADING

• Multithreading creates multiple threads of a single process to increase computing power.
• Multiple threads of a single process are executed concurrently.
• Creation of a thread is economical in both sense time and resource.

• The multithreading library is lightweight, shares memory, responsible for responsive UI and is used well for I/O bound applications.
• The module isn’t killable and is subject to the GIL.
• Multiple threads live in the same process in the same space, each thread will do a specific task, have its own code, own stack memory, instruction pointer, and share heap memory.
• If a thread has a memory leak it can damage the other threads and parent process.

Example of Multi-threading and Multiprocessing using Python

Python 3 has the facility of Launching parallel tasks. This makes our work easier.

It has for thread pooling and Process pooling.

The following gives an insight:

ThreadPoolExecutor Example

import concurrent.futures
import urllib.request

URLS = ['http://www.foxnews.com/',
        'http://www.cnn.com/',
        'http://europe.wsj.com/',
        'http://www.bbc.co.uk/',
        'http://some-made-up-domain.com/']

# Retrieve a single page and report the URL and contents
def load_url(url, timeout):
    with urllib.request.urlopen(url, timeout=timeout) as conn:
        return conn.read()

# We can use a with statement to ensure threads are cleaned up promptly
with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
    # Start the load operations and mark each future with its URL
    future_to_url = {executor.submit(load_url, url, 60): url for url in URLS}
    for future in concurrent.futures.as_completed(future_to_url):
        url = future_to_url[future]
        try:
            data = future.result()
        except Exception as exc:
            print('%r generated an exception: %s' % (url, exc))
        else:
            print('%r page is %d bytes' % (url, len(data)))

ProcessPoolExecutor

import concurrent.futures
import math

PRIMES = [
    112272535095293,
    112582705942171,
    112272535095293,
    115280095190773,
    115797848077099,
    1099726899285419]

def is_prime(n):
    if n % 2 == 0:
        return False

    sqrt_n = int(math.floor(math.sqrt(n)))
    for i in range(3, sqrt_n + 1, 2):
        if n % i == 0:
            return False
    return True

def main():
    with concurrent.futures.ProcessPoolExecutor() as executor:
        for number, prime in zip(PRIMES, executor.map(is_prime, PRIMES)):
            print('%d is prime: %s' % (number, prime))

if __name__ == '__main__':
    main()

I think what you want is to set the android:layout_weight,

http://developer.android.com/resources/tutorials/views/hello-linearlayout.html

something like this (I'm just putting text views above and below as placeholders):

  <LinearLayout
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weightSum="1">
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="68"/>
    <Gallery 
        android:id="@+id/gallery"
        android:layout_width="fill_parent"
        android:layout_height="0dp"

        android:layout_weight="16"
    />
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="16"/>

  </LinearLayout>

cat data.txt | xargs | sed -e 's/ /, /g'

You cannot store a class object into a string using toString(), toString() only returns a String representation of your object-in any way you'd like. You might want to do some reading about Serialization.

The answers above are correct, and what I'd consider the "best" answers. But just to be as complete as possible, you can also do this directly in CF using queryAddColumn.

See http://www.cfquickdocs.com/cf9/#queryaddcolumn

Again, it's more efficient to do it at the database level... but it's good to be aware of as many alternatives as possible (IMO, of course) :)

The subset command is not necessary. Just use data frame indexing

studentdata[studentdata$Drink == 'water',]

Read the warning from ?subset

This is a convenience function intended for use interactively. For programming it is better to use the standard subsetting functions like ‘[’, and in particular the non-standard evaluation of argument ‘subset’ can have unanticipated consequences.

Take a look at ?legend and try this:

legend('topright', names(a)[-1] , 
   lty=1, col=c('red', 'blue', 'green',' brown'), bty='n', cex=.75)

Maybe not as clean or efficient as the already posted solutions, but how about the .each() function? E.g:

var mvar = "";
$(".mbox").each(function() {
    console.log($(this).html());
    mvar += $(this).html();
});
console.log(mvar);

Try to set response dataType property directly:

dataType: 'text'

and put

die(''); 

in the end of your php file. You've got error callback cause jquery cannot parse your response. In anyway, you may use a "complete:" callback, just to make sure your request has been processed.

In Windows use ctrl + shift + : to comment for Python.

Shift-Alt-J is a useful keyboard shortcut in Eclipse for creating Javadoc comment templates.

Invoking the shortcut on a class, method or field declaration will create a Javadoc template:

public int doAction(int i) {
    return i;
}

Pressing Shift-Alt-J on the method declaration gives:

/**
 * @param i
 * @return
 */
public int doAction(int i) {
    return i;
}

you could make them all #'s.

You would then need to add return false; to the end of any function that is called onclick of the anchor to not have the page jump up to the top.

Basically, you're trying to use int as if it was an Object, which it isn't (well...it's complicated)

id.equals(list[pos].getItemNumber())

Should be...

id == list[pos].getItemNumber()

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/[email protected]/dist/jquery.validate.js"></script>

<script>
    $(document).ready(function(){
        $("#commentForm").validate();
    });

    function addInput() {

        var indexVal = $("#index").val();
        var index = parseInt(indexVal) + 1
        var obj = '<input id="list'+index+'" name=list['+index+']  class="required" />'
        $("#parent").append(obj);

        $("#list"+index).rules("add", "required");
        $("#index").val(index)
    }
</script>

<form id="commentForm" method="get" action="">
    <input type="hidden" name="index" name="list[1]" id="index" value="1">
    <p id="parent">
        <input id="list1"  class="required" />
    </p>
    <input class="submit" type="submit" value="Submit"/>
    <input type="button" value="add" onClick="addInput()" />
</form>

Here is a demo code where there is pagination + Filtering with AngularJS :

https://codepen.io/lamjaguar/pen/yOrVym

JS :

var app=angular.module('myApp', []);

// alternate - https://github.com/michaelbromley/angularUtils/tree/master/src/directives/pagination
// alternate - http://fdietz.github.io/recipes-with-angular-js/common-user-interface-patterns/paginating-through-client-side-data.html

app.controller('MyCtrl', ['$scope', '$filter', function ($scope, $filter) {
    $scope.currentPage = 0;
    $scope.pageSize = 10;
    $scope.data = [];
    $scope.q = '';

    $scope.getData = function () {
      // needed for the pagination calc
      // https://docs.angularjs.org/api/ng/filter/filter
      return $filter('filter')($scope.data, $scope.q)
     /* 
       // manual filter
       // if u used this, remove the filter from html, remove above line and replace data with getData()

        var arr = [];
        if($scope.q == '') {
            arr = $scope.data;
        } else {
            for(var ea in $scope.data) {
                if($scope.data[ea].indexOf($scope.q) > -1) {
                    arr.push( $scope.data[ea] );
                }
            }
        }
        return arr;
       */
    }

    $scope.numberOfPages=function(){
        return Math.ceil($scope.getData().length/$scope.pageSize);                
    }

    for (var i=0; i<65; i++) {
        $scope.data.push("Item "+i);
    }
  // A watch to bring us back to the 
  // first pagination after each 
  // filtering
$scope.$watch('q', function(newValue,oldValue){             if(oldValue!=newValue){
      $scope.currentPage = 0;
  }
},true);
}]);

//We already have a limitTo filter built-in to angular,
//let's make a startFrom filter
app.filter('startFrom', function() {
    return function(input, start) {
        start = +start; //parse to int
        return input.slice(start);
    }
});

HTML :

<div ng-app="myApp" ng-controller="MyCtrl">
  <input ng-model="q" id="search" class="form-control" placeholder="Filter text">
  <select ng-model="pageSize" id="pageSize" class="form-control">
        <option value="5">5</option>
        <option value="10">10</option>
        <option value="15">15</option>
        <option value="20">20</option>
     </select>
  <ul>
    <li ng-repeat="item in data | filter:q | startFrom:currentPage*pageSize | limitTo:pageSize">
      {{item}}
    </li>
  </ul>
  <button ng-disabled="currentPage == 0" ng-click="currentPage=currentPage-1">
        Previous
    </button> {{currentPage+1}}/{{numberOfPages()}}
  <button ng-disabled="currentPage >= getData().length/pageSize - 1" ng-click="currentPage=currentPage+1">
        Next
    </button>
</div>

Use "content:;" at the hover.This works.

This may help you.

$today = date("m-d-Y H:i:s");
$thisMonth =date("m");
$thisYear = date("y");
$expectedDate = ($thisMonth+1)."-08-$thisYear 23:58:00";


if (strtotime($expectedDate) > strtotime($today)) {
    echo "Expected date is greater then current date";
    return ;
} else
{
 echo "Expected date is lesser then current date";
}

The simplest way using ClosedXml.

Imports ClosedXML.Excel

var dataList = new List<string>() { "a", "b", "c" };
var workbook = new XLWorkbook();     //creates the workbook
var wsDetailedData = workbook.AddWorksheet("data"); //creates the worksheet with sheetname 'data'
wsDetailedData.Cell(1, 1).InsertTable(dataList); //inserts the data to cell A1 including default column name
workbook.SaveAs(@"C:\data.xlsx"); //saves the workbook

For more info, you can also check wiki of ClosedXml. https://github.com/closedxml/closedxml/wiki

I had a table change and it created another entity with a number 1 at the end (such as MyEntity1 and a MyEntity) as confirmed by the edmx model browser. Something about the two entities together confused the processing.

Removal of the table and re-adding it fixed it.

Note that if TFS is hooked up, then do a check-in of the edmx in after the delete. Then and only then get the latest and re-add it in a definite two step process. Otherwise TFS gets confused with the delete and re-add of same named entity(ies) which seems to cause problems.

function htmlspecialchars(str) {
 if (typeof(str) == "string") {
  str = str.replace(/&/g, "&"); /* must do & first */
  str = str.replace(/"/g, """);
  str = str.replace(/'/g, "'");
  str = str.replace(/</g, "&lt;");
  str = str.replace(/>/g, "&gt;");
  }
 return str;
 }

$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark` 
          ADD COLUMN `ping_status` INT(1) NOT NULL 
          AFTER `<TABLE COLUMN BEFORE THIS COLUMN>`";

I believe you need to have ADD COLUMN and use AFTER, not BEFORE.

In case you want to place column at the beginning of a table, use the FIRST statement:

$query = "ALTER TABLE `" . $table_prefix . "posts_to_bookmark`
          ADD COLUMN `ping_status` INT(1) NOT NULL 
          FIRST";

http://dev.mysql.com/doc/refman/5.1/en/alter-table.html

If you're using Django's built-in LoginView, it takes next as context, which is "The URL to redirect to after successful login. This may contain a query string, too." (see docs)

Also from the docs:

"If login is successful, the view redirects to the URL specified in next. If next isn’t provided, it redirects to settings.LOGIN_REDIRECT_URL (which defaults to /accounts/profile/)."

Example code:

urls.py

from django.urls import path
from django.contrib.auth import views as auth_views

from account.forms import LoginForm # optional form to pass to view


urlpatterns = [
    ...

    # --------------- login url/view -------------------
    path('account/login/', auth_views.LoginView.as_view(
        template_name='login.html',  
        authentication_form=LoginForm, 
        extra_context={ 

            # option 1: provide full path
            'next': '/account/my_custom_url/', 

            # option 2: just provide the name of the url
            # 'next': 'custom_url_name',  
        },
    ), name='login'),

    ...
]

login.html

...

<form method="post" action="{% url 'login' %}">

  ...

  {# option 1 #}
  <input type="hidden" name="next" value="{{ next }}">

  {# option 2 #}
  {# <input type="hidden" name="next" value="{% url next %}"> #}

</form>

how to determine if a commit with particular hash have been pushed to the origin already?

# list remote branches that contain $commit
git branch -r --contains $commit

The solution which worked for me was to add the directive in declarations in app.module.ts

I sometimes do a mysqldump and pipe the output into another mysql command to import it into a different database.

mysqldump --add-drop-table -u wordpress -p wordpress | mysql -u wordpress -p wordpress_backup

Here is the cool regex style for digit grouping:

thenumber.toString().replace(/(\d)(?=(\d{3})+(?!\d))/g, "$1.");

There are some very clear definitions sprinkled throughout K&R (2nd edition); it helps to put them in one place and read them as one:

"Definition" refers to the place where the variable is created or assigned storage; "declaration" refers to the places where the nature of the variable is stated but no storage is allocated. [p. 33]

...

It is important to distinguish between the declaration of an external variable and its definition. A declaration announces the properties of a variable (primarily its type); a definition also causes storage to be set aside. If the lines

int sp;
double val[MAXVAL]

appear outside of any function, they define the external variables sp and val, cause storage to be set aside, and also serve as the declaration for the rest of that source file.

On the other hand, the lines

extern int sp;
extern double val[];

declare for the rest of the source file that sp is an int and that val is a double array (whose size is determined elsewhere), but they do not create the variables or reserve storage for them.

There must be only one definition of an external variable among all the files that make up the source program. ... Array sizes must be specified with the definition, but are optional with an extern declaration. [pp. 80-81]

...

Declarations specify the interpretation given to each identifier; they do not necessarily reserve storage associated with the identifier. Declarations that reserve storage are called definitions. [p. 210]

I created a web site https://www.swdoc.org/ that specifically addresses the problem. So it automates swagger.json -> Asciidoc, Asciidoc -> pdf transformation as suggested in the answers. Benefit of this is that you dont need to go through the installation procedures. It accepts a spec document in form of url or just a raw json. Project is written in C# and its page is https://github.com/Irdis/SwDoc

EDIT

It might be a good idea to validate your json specs here: http://editor.swagger.io/ if you are having any problems with SwDoc, like the pdf being generated incomplete.

First you have to set the MultiLine property of the TextBox to true so that it supports multiple lines.

Then you just use Environment.NewLine to get the newline character combination.

@HTML.ActionLink generates a HTML anchor tag. While @Url.Action generates a URL for you. You can easily understand it by;

// 1. <a href="/ControllerName/ActionMethod">Item Definition</a>
@HTML.ActionLink("Item Definition", "ActionMethod", "ControllerName")

// 2. /ControllerName/ActionMethod
@Url.Action("ActionMethod", "ControllerName")

// 3. <a href="/ControllerName/ActionMethod">Item Definition</a>
<a href="@Url.Action("ActionMethod", "ControllerName")"> Item Definition</a>

Both of these approaches are different and it totally depends upon your need.

The ternary operator can only be the right side of an assignment and not a statement of its own.

http://www.devdaily.com/java/edu/pj/pj010018/

There are a number of people with this difficulty. The prevailing answer is that you can't protect content from editing while allowing unhindered sorting. Your options are:

1) Allow editing and sorting :(

2) Apply protection and create buttons with code to sort using VBA. There are other posts explaining how to do this. I think there are two methods, either (1) get the code to unprotect the sheet, apply the sort, then re-protect the sheet, or (2) have the sheet protected using UserInterfaceOnly:=True.

3) Lorie's answer which does not allow users to select cells (https://stackoverflow.com/a/15390698/269953)

4) One solution that I haven't seen discussed is using VBA to provide some basic protection. For example, detect and revert changes using Worksheet_Change. It's far from an ideal solution however.

5) You could keep the sheet protected when the user is selecting the data and unprotected when the user has the header is selected. This leaves countless ways the users could mess up the data while also causing some usability issues, but at least reduces the odds of pesky co-workers thoughtlessly making unwanted changes.

Private Sub Worksheet_SelectionChange(ByVal Target As Range)
    If (Target.row = HEADER_ROW) Then
        wsMainTable.Unprotect Password:=PROTECTION_PASSWORD
    Else
        wsMainTable.Protect Password:=PROTECTION_PASSWORD, UserInterfaceOnly:=True
    End If
End Sub

Try:

tourists.removeAll(Collections.singleton(null));

Read the Java API. The code will throw java.lang.UnsupportedOperationException for immutable lists (such as created with Arrays.asList); see this answer for more details.

It isn't that tough to construct a mapping:

   1  2  3  4  5  use this mapping if (a,b) != (b,a)
1  0  1  3  6 10
2  2  4  7 11 16
3  5  8 12 17 23
4  9 13 18 24 31
5 14 19 25 32 40

   1  2  3  4  5 use this mapping if (a,b) == (b,a) (mirror)
1  0  1  2  4  6
2  1  3  5  7 10
3  2  5  8 11 14
4  4  8 11 15 19
5  6 10 14 19 24


    0  1 -1  2 -2 use this if you need negative/positive
 0  0  1  2  4  6
 1  1  3  5  7 10
-1  2  5  8 11 14
 2  4  8 11 15 19
-2  6 10 14 19 24

Figuring out how to get the value for an arbitrary a,b is a little more difficult.

Not necessarily better, but since it's nice to have options here's how to do it using Jinja statements:

- debug:
    msg: "{% for address in network.addresses.private_man %}\
        {% if address.type == 'fixed' %}\
          {{ address.addr }}\
        {% endif %}\
      {% endfor %}"

Or if you prefer to put it all on one line:

- debug:
    msg: "{% for address in network.addresses.private_man if address.type == 'fixed' %}{{ address.addr }}{% endfor %}"

Which returns:

ok: [localhost] => {
    "msg": "172.16.1.100"
}

As others have mentioned, perhaps the main advantage of matrix was that it provided a convenient notation for matrix multiplication.

However, in Python 3.5 there is finally a dedicated infix operator for matrix multiplication: @.

With recent NumPy versions, it can be used with ndarrays:

A = numpy.ones((1, 3))
B = numpy.ones((3, 3))
A @ B

So nowadays, even more, when in doubt, you should stick to ndarray.

Add this 2 lines in your code -

mWebView.setWebChromeClient(new WebChromeClient()); 
mWebView.setWebViewClient(new WebViewClient());?

I face the same problem while I have updated my SDK and Android studio version(3.0 beta). I have solved this problem going through this tutorial. In this they told us to update are build configuration file like

android {
   compileSdkVersion 26
   buildToolsVersion '26.0.0'
   defaultConfig {
   targetSdkVersion 26
  }
  ...
}

dependencies {
   compile 'com.android.support:appcompat-v7:26.0.0'
}

// REQUIRED: Google's new Maven repo is required for the latest
// support library that is compatible with Android 8.0
repositories {
   maven {
       url 'https://maven.google.com'
       // Alternative URL is 'https://dl.google.com/dl/android/maven2/'
   }
}

Hope it will help you out.

You could follow a solution similar to "How do I force “git pull” to overwrite local files?":

git fetch --all
git reset --hard origin/abranch
git checkout $branch 

That would involve only one fetch.

With Git 2.23+, git checkout is replaced here with git switch (presented here) (still experimental).

git switch -f $branch

(with -f being an alias for --discard-changes, as noted in Jan's answer)

Proceed even if the index or the working tree differs from HEAD.
Both the index and working tree are restored to match the switching target.

Please use ListFragment. Otherwise, it won't work.

EDIT 1: Then you'll only need setListAdapter() and getListView().

XDebug is essential for development. I install it before any other extension. It gives you stack traces on any error and you can enable profiling easily.

For a quick look at a data structure use var_dump(). Don't use print_r() because you'll have to surround it with <pre> and it only prints one var at a time.

<?php var_dump(__FILE__, __LINE__, $_REQUEST); ?>

For a real debugging environment the best I've found is Komodo IDE but it costs $$.

By the way, it is also possible to create string arrays in the strings.xml like so:

<string-array name="tabs_names"> 
    <item>My Tab 1</item> 
    <item>My Tab 2</item>
</string-array>

And then from your Activity you can get the reference like so:

String[] tab_names = getResources().getStringArray(R.array.tab_names);
String tabname1=tab_names[0];//"My Tab 1"

All you wanted (at the time the question was originally asked) was a hint. Here's a hint: In Python, you can use dictionaries.

There is another solution while using with uitextview, You can add toolbar as InputAccessoryView in "textViewShouldBeginEditing", and from this toolbar's done button you can dismiss keyboard, the code for this is following:

In viewDidLoad

toolBar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 44)]; //toolbar is uitoolbar object
toolBar.barStyle = UIBarStyleBlackOpaque;
UIBarButtonItem *btnDone = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(btnClickedDone:)];
[toolBar setItems:[NSArray arrayWithObject:btnDone]];

In textviewdelegate method

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
     [textView setInputAccessoryView:toolBar];
     return YES;
}

In action of Button Done which is in toolbar is following:

-(IBAction)btnClickedDone:(id)sender
{
    [self.view endEditing:YES];
}

Request-scoped beans can be autowired with the request object.

private @Autowired HttpServletRequest request;

By default, the classes in the csv module use Windows-style line terminators (\r\n) rather than Unix-style (\n). Could this be what’s causing the apparent double line breaks?

If so, you can override it in the DictWriter constructor:

output = csv.DictWriter(open('file3.csv','w'), delimiter=',', lineterminator='\n', fieldnames=headers)

I kind of like this solution :

: `particular_script`

The command/script between the back ticks is executed and its output is fed to the command ":" (which is the equivalent of "true")

$ false
$ echo $?
1
$ : `false`
$ echo $?
0

edit: Fixed ugly typo