I got this issue because of a rather silly mistake. I had forgotten to hook my service configuration procedure to discover controllers automatically in the ASP.NET Core application.

Adding this method solved it:

// Add framework services.
            services.AddMvc()
                    .AddControllersAsServices();      // <---- Super important

Since it doesn't appear that anyone has mentioned it here yet, the new best way to manage HttpClient and HttpClientHandler in .NET Core 2.1 is using HttpClientFactory.

It solves most of the aforementioned issues and gotchas in a clean and easy-to-use way. From Steve Gordon's great blog post:

Add the following packages to your .Net Core (2.1.1 or later) project:

Microsoft.AspNetCore.All
Microsoft.Extensions.Http

Add this to Startup.cs:

services.AddHttpClient();

Inject and use:

[Route("api/[controller]")]
public class ValuesController : Controller
{
    private readonly IHttpClientFactory _httpClientFactory;

    public ValuesController(IHttpClientFactory httpClientFactory)
    {
        _httpClientFactory = httpClientFactory;
    }

    [HttpGet]
    public async Task<ActionResult> Get()
    {
        var client = _httpClientFactory.CreateClient();
        var result = await client.GetStringAsync("http://www.google.com");
        return Ok(result);
    }
}

Explore the series of posts in Steve's blog for lots more features.

I'm working on Windows Server 2012. .NET Extensibility 4.5 feature is on. WebDAVModule removed. I was still getting 500.21 error on ASP.NET route '/docs'.

Changing 'skipManagedModules' to false fixed the problem.

<applicationInitialization doAppInitAfterRestart="true" skipManagedModules="false">
        <add initializationPage="/docs" />    
</applicationInitialization>

Thanks to https://groups.google.com/forum/#!topic/bonobo-git-server/GbdMXdDO4tI

No need to close the file according to the docs if you use with:

It is good practice to use the with keyword when dealing with file objects. This has the advantage that the file is properly closed after its suite finishes, even if an exception is raised on the way. It is also much shorter than writing equivalent try-finally blocks:

>>> with open('workfile', 'r') as f:
...     read_data = f.read()
>>> f.closed
True

More here: https://docs.python.org/2/tutorial/inputoutput.html#methods-of-file-objects

Update (December 1, 2009):

I'd like to amend this answer and concede that the original answer was flawed.

The original analysis does apply to objects that require finalization – and the point that practices shouldn’t be accepted on the surface without an accurate, in-depth understanding still stands.

However, it turns out that DataSets, DataViews, DataTables suppress finalization in their constructors – this is why calling Dispose() on them explicitly does nothing.

Presumably, this happens because they don’t have unmanaged resources; so despite the fact that MarshalByValueComponent makes allowances for unmanaged resources, these particular implementations don’t have the need and can therefore forgo finalization.

(That .NET authors would take care to suppress finalization on the very types that normally occupy the most memory speaks to the importance of this practice in general for finalizable types.)

Notwithstanding, that these details are still under-documented since the inception of the .NET Framework (almost 8 years ago) is pretty surprising (that you’re essentially left to your own devices to sift though conflicting, ambiguous material to put the pieces together is frustrating at times but does provide a more complete understanding of the framework we rely on everyday).

After lots of reading, here’s my understanding:

If an object requires finalization, it could occupy memory longer than it needs to – here’s why: a) Any type that defines a destructor (or inherits from a type that defines a destructor) is considered finalizable; b) On allocation (before the constructor runs), a pointer is placed on the Finalization queue; c) A finalizable object normally requires 2 collections to be reclaimed (instead of the standard 1); d) Suppressing finalization doesn’t remove an object from the finalization queue (as reported by !FinalizeQueue in SOS) This command is misleading; Knowing what objects are on the finalization queue (in and of itself) isn’t helpful; Knowing what objects are on the finalization queue and still require finalization would be helpful (is there a command for this?)

Suppressing finalization turns a bit off in the object's header indicating to the runtime that it doesn’t need to have its Finalizer invoked (doesn’t need to move the FReachable queue); It remains on the Finalization queue (and continues to be reported by !FinalizeQueue in SOS)

The DataTable, DataSet, DataView classes are all rooted at MarshalByValueComponent, a finalizable object that can (potentially) handle unmanaged resources

• Because DataTable, DataSet, DataView don’t introduce unmanaged resources, they suppress finalization in their constructors
• While this is an unusual pattern, it frees the caller from having to worry about calling Dispose after use
• This, and the fact that DataTables can potentially be shared across different DataSets, is likely why DataSets don’t care to dispose child DataTables
• This also means that these objects will appear under the !FinalizeQueue in SOS
• However, these objects should still be reclaimable after a single collection, like their non-finalizable counterparts

4 (new references):

• http://www.devnewsgroups.net/dotnetframework/t19821-finalize-queue-windbg-sos.aspx
• http://blogs.msdn.com/tom/archive/2008/04/28/asp-net-tips-looking-at-the-finalization-queue.aspx
• http://issuu.com/arifaat/docs/asp_net_3.5unleashed
• http://msdn.microsoft.com/en-us/magazine/bb985013.aspx
• http://blogs.msdn.com/tess/archive/2006/03/27/561715.aspx

Original Answer:

There are a lot of misleading and generally very poor answers on this - anyone who's landed here should ignore the noise and read the references below carefully.

Without a doubt, Dispose should be called on any Finalizable objects.

DataTables are Finalizable.

Calling Dispose significantly speeds up the reclaiming of memory.

MarshalByValueComponent calls GC.SuppressFinalize(this) in its Dispose() - skipping this means having to wait for dozens if not hundreds of Gen0 collections before memory is reclaimed:

With this basic understanding of finalization we can already deduce some very important things:

First, objects that need finalization live longer than objects that do not. In fact, they can live a lot longer. For instance, suppose an object that is in gen2 needs to be finalized. Finalization will be scheduled but the object is still in gen2, so it will not be re-collected until the next gen2 collection happens. That could be a very long time indeed, and, in fact, if things are going well it will be a long time, because gen2 collections are costly and thus we want them to happen very infrequently. Older objects needing finalization might have to wait for dozens if not hundreds of gen0 collections before their space is reclaimed.

Second, objects that need finalization cause collateral damage. Since the internal object pointers must remain valid, not only will the objects directly needing finalization linger in memory but everything the object refers to, directly and indirectly, will also remain in memory. If a huge tree of objects was anchored by a single object that required finalization, then the entire tree would linger, potentially for a long time as we just discussed. It is therefore important to use finalizers sparingly and place them on objects that have as few internal object pointers as possible. In the tree example I just gave, you can easily avoid the problem by moving the resources in need of finalization to a separate object and keeping a reference to that object in the root of the tree. With that modest change only the one object (hopefully a nice small object) would linger and the finalization cost is minimized.

Finally, objects needing finalization create work for the finalizer thread. If your finalization process is a complex one, the one and only finalizer thread will be spending a lot of time performing those steps, which can cause a backlog of work and therefore cause more objects to linger waiting for finalization. Therefore, it is vitally important that finalizers do as little work as possible. Remember also that although all object pointers remain valid during finalization, it might be the case that those pointers lead to objects that have already been finalized and might therefore be less than useful. It is generally safest to avoid following object pointers in finalization code even though the pointers are valid. A safe, short finalization code path is the best.

Take it from someone who's seen 100s of MBs of non-referenced DataTables in Gen2: this is hugely important and completely missed by the answers on this thread.

References:

1 - http://msdn.microsoft.com/en-us/library/ms973837.aspx

2 - http://vineetgupta.spaces.live.com/blog/cns!8DE4BDC896BEE1AD!1104.entry http://www.dotnetfunda.com/articles/article524-net-best-practice-no-2-improve-garbage-collector-performance-using-finalizedispose-pattern.aspx

3 - http://codeidol.com/csharp/net-framework/Inside-the-CLR/Automatic-Memory-Management/

The recommended IDisposable pattern is here. When programming a class that uses IDisposable, generally you should use two patterns:

When implementing a sealed class that doesn't use unmanaged resources, you simply implement a Dispose method as with normal interface implementations:

public sealed class A : IDisposable
{
    public void Dispose()
    {
        // get rid of managed resources, call Dispose on member variables...
    }
}

When implementing an unsealed class, do it like this:

public class B : IDisposable
{    
    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (disposing)
        {
            // get rid of managed resources
        }   
        // get rid of unmanaged resources
    }

    // only if you use unmanaged resources directly in B
    //~B()
    //{
    //    Dispose(false);
    //}
}

Notice that I haven't declared a finalizer in B; you should only implement a finalizer if you have actual unmanaged resources to dispose. The CLR deals with finalizable objects differently to non-finalizable objects, even if SuppressFinalize is called.

So, you shouldn't declare a finalizer unless you have to, but you give inheritors of your class a hook to call your Dispose and implement a finalizer themselves if they use unmanaged resources directly:

public class C : B
{
    private IntPtr m_Handle;

    protected override void Dispose(bool disposing)
    {
        if (disposing)
        {
            // get rid of managed resources
        }
        ReleaseHandle(m_Handle);

        base.Dispose(disposing);
    }

    ~C() {
        Dispose(false);
    }
}

If you're not using unmanaged resources directly (SafeHandle and friends doesn't count, as they declare their own finalizers), then don't implement a finalizer, as the GC deals with finalizable classes differently, even if you later suppress the finalizer. Also note that, even though B doesn't have a finalizer, it still calls SuppressFinalize to correctly deal with any subclasses that do implement a finalizer.

When a class implements the IDisposable interface, it means that somewhere there are some unmanaged resources that should be got rid of when you've finished using the class. The actual resources are encapsulated within the classes; you don't need to explicitly delete them. Simply calling Dispose() or wrapping the class in a using(...) {} will make sure any unmanaged resources are got rid of as necessary.

You have to be careful using the destructor. This will get called on the GC Finalizer thread. In some cases the resources that your freeing may not like being released on a different thread from the one they were created on.

Its Working in Pie OS Use this

    @Override
    protected void onCreate() {
        super.onCreate();
        //setNotificationBadge();

        if (android.os.Build.VERSION.SDK_INT >= 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }

    }

        BottomNavigationView bottomNavigationView = (BottomNavigationView) findViewById(R.id.navigation);
        Menu menu = bottomNavigationView.getMenu();
        MenuItem userImage = menu.findItem(R.id.navigation_download);
        userImage.setTitle("Login");

        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                try {

                    URL url = new URL("https://rukminim1.flixcart.com/image/832/832/jmux18w0/mobile/b/g/n/mi-redmi-6-mzb6387in-original-imaf9z8eheryfbsu.jpeg?q=70");
                    Bitmap myBitmap = BitmapFactory.decodeStream(url.openConnection().getInputStream());

                    Log.e("keshav", "Bitmap " + myBitmap);
                    userImage.setIcon(new BitmapDrawable(getResources(), myBitmap));

                } catch (IOException e) {
                    Log.e("keshav", "Exception " + e.getMessage());
                }
            }
        });

Cstr() is compiled inline for better performance.

CType allows for casts between types if a conversion operator is defined

ToString() Between base type and string throws an exception if conversion is not possible.

TryParse() From String to base typeif possible otherwise returns false

DirectCast used if the types are related via inheritance or share a common interface , will throw an exception if the cast is not possible, trycast will return nothing in this instance

Yes you only need $() when you're using jQuery. If you want jQuery's help to do DOM things just keep this in mind.

$(this)[0] === this

Basically every time you get a set of elements back jQuery turns it into a jQuery object. If you know you only have one result, it's going to be in the first element.

$("#myDiv")[0] === document.getElementById("myDiv");

And so on...

Objective-C

UIImage *btnImage = [UIImage imageNamed:@"image.png"];
[btnTwo setImage:btnImage forState:UIControlStateNormal];

Swift 5.1

let btnImage = UIImage(named: "image")
btnTwo.setImage(btnImage , for: .normal)

Rename the closing function as 'hide', for example and it will work.

function hide() {
    if(document.getElementById('benefits').style.display=='block') {
      document.getElementById('benefits').style.display='none';
    }
} 

A more functional approach to @William Lahti's answer:

var entities = {
  'amp': '&',
  'apos': '\'',
  '#x27': '\'',
  '#x2F': '/',
  '#39': '\'',
  '#47': '/',
  'lt': '<',
  'gt': '>',
  'nbsp': ' ',
  'quot': '"'
}

function decodeHTMLEntities (text) {
  return text.replace(/&([^;]+);/gm, function (match, entity) {
    return entities[entity] || match
  })
}

A single quote is represented using \x27

Like in

awk 'BEGIN {FS=" ";} {printf "\x27%s\x27 ", $1}'

Source

Add a property to the form method="post".

Like this:

<form name="loginform" method="post">

Define your own parse format string to use.

string formatString = "yyyyMMddHHmmss";
string sample = "20100611221912";
DateTime dt = DateTime.ParseExact(sample,formatString,null);

In case you got a datetime having milliseconds, use the following formatString

string format = "yyyyMMddHHmmssfff"
string dateTime = "20140123205803252";
DateTime.ParseExact(dateTime ,format,CultureInfo.InvariantCulture);

Thanks

Similar to Bass, I had to also set the overflow-y. That could actually be done in the CSS

$('#myModal').on('show.bs.modal', function () {
    $('.modal .modal-body').css('overflow-y', 'auto'); 
    $('.modal .modal-body').css('max-height', $(window).height() * 0.7);
});

filter_input(INPUT_POST, 'var_name') instead of $_POST['var_name']
filter_input_array(INPUT_POST) instead of $_POST

Cava Packager is great on the Windows ecosystem.

#include <vector>
#include <algorithm>

int main()
{
     int arr[5] = {4, 1, 3, 2, 6};
     int x = -1;
     std::vector<int> testVector(arr, arr + sizeof(arr) / sizeof(int) );

     std::vector<int>::iterator it = std::find(testVector.begin(), testVector.end(), 3);
     if (it != testVector.end())
     {
          x = it - testVector.begin();
     }
     return 0;
}

Or you can just build a vector in a normal way, without creating it from an array of ints and then use the same solution as shown in my example.

console.dir() is the most direct way.

I had from a totaly different reason the same notice "Value does not fall within the expected range" from the Visual studio 2008 while trying to use the: Tools -> Windows Embedded Silverlight Tools -> Update Silverlight For Windows Embedded Project.

After spending many ohurs I found out that the problem was that there wasn't a resource file and the update tool looks for the .RC file

Therefor the solution is to add to the resource folder a .RC file and than it works perfectly. I hope it will help someone out there

Also a little known feature in Twig is string interpolation:

{{ "http://#{app.request.host}" }}

Well, data.str().c_str() yields a char const* but your function Printfunc() wants to have char*s. Based on the name, it doesn't change the arguments but merely prints them and/or uses them to name a file, in which case you should probably fix your declaration to be

void Printfunc(int a, char const* loc, char const* stream)

The alternative might be to turn the char const* into a char* but fixing the declaration is preferable:

Printfunc(num, addr, const_cast<char*>(data.str().c_str()));

Do the following two steps. I hope, it will solve the "404 not found" issue in tomcat server during the development of java servlet application.

Step 1: Right click on the server(in the server explorer tab)->Properties->Switch Location from workspace metadata to tomcat server

Step 2: Double Click on the server(in the server explorer tab)->Select Use tomcat installation option inside server location menu

At first you should remove the item from your list. Later you may empty your adapter and refill it with new list.

private void add(final List<Track> trackList) {
    MyAdapter bindingData = new MyAdapter(MyActivity.this, trackList);

    list = (ListView) findViewById(R.id.my_list); // TODO

    list.setAdapter(bindingData);


    // Click event for single list row
    list.setOnItemClickListener(new OnItemClickListener() {

        public void onItemClick(AdapterView<?> parent, View view,
                final int position, long id) {
            // ShowPlacePref(places, position);
            AlertDialog.Builder showPlace = new AlertDialog.Builder(
                    Favoriler.this);
            showPlace.setMessage("Remove from list?");
            showPlace.setPositiveButton("DELETE", new OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {    

                    trackList.remove(position); //FIRST OF ALL REMOVE ITEM FROM LIST
                    list.setAdapter(null); // THEN EMPTY YOUR ADAPTER

                    add(trackList); // AT LAST REFILL YOUR LISTVIEW (Recursively)

                }

            });
            showPlace.setNegativeButton("CANCEL", new OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {

                }
            });
            showPlace.show();
        }

    });

}

Try to see if the following code helps you:

Dim iDate As String = "05/05/2005"
Dim oDate As DateTime = Convert.ToDateTime(iDate)

I had similar issue, I resolved by changing the requestlimits maxAllowedContentLength ="40000000" section of applicationhost.config file, located in "C:\Windows\System32\inetsrv\config" directory

Look for security Section and add the sectionGroup.

<sectionGroup name="requestfiltering">
    <section name="requestlimits" maxAllowedContentLength ="40000000" />
</sectionGroup>

*NOTE delete;

<section name="requestfiltering" overrideModeDefault="Deny" />

Found a perfect answer to this:

git show --name-status --oneline <commit-hash>

So that I can know

which files were just modified M

Which files were newly added , A

Which files were deleted , D

Here's a quick sample using the DecimalFormat class mentioned by Nick.

float f = 12.345f;
DecimalFormat df = new DecimalFormat("#.00");
System.out.println(df.format(f));

The output of the print statement will be 12.35. Notice that it will round it for you.

Please note that tf.Print() will change the tensor name. If the tensor you seek to print is a placeholder, feeding data to it will fail as the original name will not be found during feeding. For example:

import tensorflow as tf
tens = tf.placeholder(tf.float32,[None,2],name="placeholder")
print(eval("tens"))
tens = tf.Print(tens,[tens, tf.shape(tens)],summarize=10,message="tens:")
print(eval("tens"))
res = tens + tens
sess = tf.Session()
sess.run(tf.global_variables_initializer())

print(sess.run(res))

Output is:

python test.py
Tensor("placeholder:0", shape=(?, 2), dtype=float32)
Tensor("Print:0", shape=(?, 2), dtype=float32)
Traceback (most recent call last):
[...]
InvalidArgumentError (see above for traceback): You must feed a value for placeholder tensor 'placeholder' with dtype float

Many Linux distros (mostly Debian-based) configure OpenJDK to use /dev/random for entropy.

/dev/random is by definition slow (and can even block).

From here you have two options on how to unblock it:

1. Improve entropy, or
2. Reduce randomness requirements.

Option 1, Improve entropy

To get more entropy into /dev/random, try the haveged daemon. It's a daemon that continuously collects HAVEGE entropy, and works also in a virtualized environment because it doesn't require any special hardware, only the CPU itself and a clock.

On Ubuntu/Debian:

apt-get install haveged
update-rc.d haveged defaults
service haveged start

On RHEL/CentOS:

yum install haveged
systemctl enable haveged
systemctl start haveged

Option 2. Reduce randomness requirements

If for some reason the solution above doesn't help or you don't care about cryptographically strong randomness, you can switch to /dev/urandom instead, which is guaranteed not to block.

To do it globally, edit the file jre/lib/security/java.security in your default Java installation to use /dev/urandom (due to another bug it needs to be specified as /dev/./urandom).

Like this:

#securerandom.source=file:/dev/random
securerandom.source=file:/dev/./urandom

Then you won't ever have to specify it on the command line.

Note: If you do cryptography, you need good entropy. Case in point - android PRNG issue reduced the security of Bitcoin wallets.

I had the same problem too. Then i realized that in the MainPageServlet the urlPatterns parameter in @WebServlet annotation contained "/", because i wanted to forward to the MainPage if the user entered the section www.site.com/ . When i tried to open the css file from the browser, the url was www.site.com/css/desktop.css, but the page content was THE PAGE MainPage.jsp. So, i removed the "/" urlPattern and now i can use CSS files in my jsp file using one of the most common solutions (${pageContext.request.contextPath}/css/desktop.css). Make sure your servlet doesn't contain the "/" urlPattern. I hope this worked for u too, - Axel Montini

You can also use a media query with javascript.

const mq = window.matchMedia( "(min-width: 960px)" );

if (mq.matches) {
       alert("window width >= 960px");
} else {
     alert("window width < 960px");
}

In this case:

// get today and clear time of day
Calendar cal = Calendar.getInstance();
cal.clear(Calendar.HOUR_OF_DAY);  <---- is the current hour not 0 hour
cal.clear(Calendar.MINUTE);
cal.clear(Calendar.SECOND);
cal.clear(Calendar.MILLISECOND);

So the Calendar.HOUR_OF_DAY returns 8, 9, 12, 15, 18 as the current running hour. I think will be better change such line by:

c.set(Calendar.HOUR_OF_DAY,0);

this way the day always begin at 0 hour

use screensplitr on jailbrocken iphone/ipod touch it works

I just had the same problem, what I did, I arranged the library order in sequence, for example there were java.lang.NullPointerException and javacard.lang.NullPointerException. I made the first one as default library and if you needed to use the other you can explicitly specify the full qualified class name.

FYI, from November 2018 anyone who wants access Twitter’s APIs must apply for a Twitter Development Account by visiting https://developer.twitter.com/. Once your application has been approved then only you'll be able to create Twitter apps.

Once the Twitter Developer Account is ready:

1) Go to https://developer.twitter.com/.

2) Click on Apps and then click on Create an app.

3) Provide an App Name & Description.

4) Enter a website name in the Website URL field.

5) Click on Create.

6) Navigate to your app, then click on Details and then go to Keys and Tokens.

Reference: http://www.technocratsid.com/getting-twitter-consumer-api-access-token-keys/

Just completing the Vijay's post...

Manifest

uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"

Function

public static boolean createDirIfNotExists(String path) {
    boolean ret = true;

    File file = new File(Environment.getExternalStorageDirectory(), path);
    if (!file.exists()) {
        if (!file.mkdirs()) {
            Log.e("TravellerLog :: ", "Problem creating Image folder");
            ret = false;
        }
    }
    return ret;
}

Usage

createDirIfNotExists("mydir/"); //Create a directory sdcard/mydir
createDirIfNotExists("mydir/myfile") //Create a directory and a file in sdcard/mydir/myfile.txt

You could check for errors

if(createDirIfNotExists("mydir/")){
     //Directory Created Success
}
else{
    //Error
}

For SQL Server, from http://msdn.microsoft.com/en-us/library/ms179859.aspx :

• % Any string of zero or more characters.

  WHERE title LIKE '%computer%' finds all book titles with the word 'computer' anywhere in the book title.

• _ Any single character.

  WHERE au_fname LIKE '_ean' finds all four-letter first names that end with ean (Dean, Sean, and so on).

• [ ] Any single character within the specified range ([a-f]) or set ([abcdef]).

  WHERE au_lname LIKE '[C-P]arsen' finds author last names ending with arsen and starting with any single character between C and P, for example Carsen, Larsen, Karsen, and so on. In range searches, the characters included in the range may vary depending on the sorting rules of the collation.

• [^] Any single character not within the specified range ([^a-f]) or set ([^abcdef]).

  WHERE au_lname LIKE 'de[^l]%' all author last names starting with de and where the following letter is not l.

check out this.

<activity android:name=".Calculator"
    android:windowSoftInputMode="stateHidden|adjustResize" 
    android:theme="@android:style/Theme.Black.NoTitleBar">
</activity>

I think doing this way is much simpler:

button.setBackgroundColor(Color.BLACK);

And you need to import android.graphics.Color; not: import android.R.color;

Or you can just write the 4-byte hex code (not 3-byte) 0xFF000000 where the first byte is setting the alpha.

The solution, if your list items can be display: inline is quite easy:

#footer { text-align: center; }
#footer ul { list-style: none; }
#footer ul li { display: inline; }

However, many times you must use display:block on your <li>s. The following CSS will work, in this case:

#footer { width: 100%; overflow: hidden; }
#footer ul { list-style: none; position: relative; float: left; display: block; left: 50%; }
#footer ul li { position: relative; float: left; display: block; right: 50%; }

Try this:

if [ $STATUS -ne 200 -a "$STRING" != "$VALUE" ]; then

This may help you find what you're looking for... Batch script loop

My answer is as follows:

@echo off
:start
set /a var+=1
if %var% EQU 100 goto end
:: Code you want to run goes here
goto start

:end
echo var has reached %var%.
pause
exit

The first set of commands under the start label loops until a variable, %var% reaches 100. Once this happens it will notify you and allow you to exit. This code can be adapted to your needs by changing the 100 to 17 and putting your code or using a call command followed by the batch file's path (Shift+Right Click on file and select "Copy as Path") where the comment is placed.

To select and element where you know only the attribute value you can use the below jQuery script

var src = $('.conversation_img[alt="example"]').attr('src');

Please refer the jQuery Documentation for attribute equals selectors

Please also refer to the example in Demo

Following is the code incase you are not able to access the demo..

HTML

<div>
    <img alt="example" src="\images\show.jpg" />
    <img  alt="exampleAll" src="\images\showAll.jpg" />  

</div>

SCRIPT JQUERY

var src = $('img[alt="example"]').attr('src');
alert("source of image with alternate text = example - " + src);


var srcAll = $('img[alt="exampleAll"]').attr('src');
alert("source of image with alternate text = exampleAll - " + srcAll );

Output will be

Two Alert messages each having values

1. source of image with alternate text = example - \images\show.jpg
2. source of image with alternate text = exampleAll - \images\showAll.jpg

The closest you can do (except for your base-interface approach) is "where T : class", meaning reference-type. There is no syntax to mean "any interface".

This ("where T : class") is used, for example, in WCF to limit clients to service contracts (interfaces).

site-packages is the target directory of manually built Python packages. When you build and install Python packages from source (using distutils, probably by executing python setup.py install), you will find the installed modules in site-packages by default.

There are standard locations:

• Unix (pure)¹: prefix/lib/pythonX.Y/site-packages
• Unix (non-pure): exec-prefix/lib/pythonX.Y/site-packages
• Windows: prefix\Lib\site-packages

¹ Pure means that the module uses only Python code. Non-pure can contain C/C++ code as well.

site-packages is by default part of the Python search path, so modules installed there can be imported easily afterwards.

Useful reading

• Installing Python Modules (for Python 2)
• Installing Python Modules (for Python 3)

You can achieve this by using Newtonsoft.json. Install Newtonsoft.json from NuGet. And then:

using Newtonsoft.Json;

var jsonString = JsonConvert.SerializeObject(obj);

Another clue: I was using JSF, and added mvn dependencies: com.sun.faces jsf-api 2.2.11

    <dependency>
        <groupId>com.sun.faces</groupId>
        <artifactId>jsf-impl</artifactId>
        <version>2.2.11</version>
    </dependency>

Then, I tried to change to Primefaces, and add primefaces dependency:

<dependency>
    <groupId>org.primefaces</groupId>
    <artifactId>primefaces</artifactId>
    <version>6.0</version>
</dependency>

I changed my xhtml from h: to p:, adding xmlns:p="http://primefaces.org/ui to the template. Only with JSF the proyect was running ok, and the managedbean was reached ok. When I add Primefaces I was getting the unreachable object (javax.el.propertynotfoundexception). The problem was that JSF was generating the ManagedBean, not Primefaces, and I was asking primefaces for the object. I had to delete jsf-impl from my .pom, clean and install the proyect. All went ok from this point. Hope that helps.

I had a similar problem and I ended up writing a node extension for this. You can check out the git repository. It's open source and free and all that good stuff !

https://github.com/aponxi/npm-execxi

ExecXI is a node extension written in C++ to execute shell commands one by one, outputting the command's output to the console in real-time. Optional chained, and unchained ways are present; meaning that you can choose to stop the script after a command fails (chained), or you can continue as if nothing has happened !

Usage instructions are in the ReadMe file. Feel free to make pull requests or submit issues!

I thought it was worth to mention it.

Networking code is notoriously difficult to write, test and debug.

You often have lots of things to consider such as:

• what "endian" will you use for the data that is exchanged (Intel x86/x64 is based on little-endian) - systems that use big-endian can still read data that is in little-endian (and vice versa), but they have to rearrange the data. When documenting your "protocol" just make it clear which one you are using.

• are there any "settings" that have been set on the sockets which can affect how the "stream" behaves (e.g. SO_LINGER) - you might need to turn certain ones on or off if your code is very sensitive

• how does congestion in the real world which causes delays in the stream affect your reading/writing logic

If the "message" being exchanged between a client and server (in either direction) can vary in size then often you need to use a strategy in order for that "message" to be exchanged in a reliable manner (aka Protocol).

Here are several different ways to handle the exchange:

• have the message size encoded in a header that precedes the data - this could simply be a "number" in the first 2/4/8 bytes sent (dependent on your max message size), or could be a more exotic "header"

• use a special "end of message" marker (sentinel), with the real data encoded/escaped if there is the possibility of real data being confused with an "end of marker"

• use a timeout....i.e. a certain period of receiving no bytes means there is no more data for the message - however, this can be error prone with short timeouts, which can easily be hit on congested streams.

• have a "command" and "data" channel on separate "connections"....this is the approach the FTP protocol uses (the advantage is clear separation of data from commands...at the expense of a 2nd connection)

Each approach has its pros and cons for "correctness".

The code below uses the "timeout" method, as that seems to be the one you want.

See http://msdn.microsoft.com/en-us/library/bk6w7hs8.aspx. You can get access to the NetworkStream on the TCPClient so you can change the ReadTimeout.

string SendCmd(string cmd, string ip, int port)
{
  var client = new TcpClient(ip, port);
  var data = Encoding.GetEncoding(1252).GetBytes(cmd);
  var stm = client.GetStream();
  // Set a 250 millisecond timeout for reading (instead of Infinite the default)
  stm.ReadTimeout = 250;
  stm.Write(data, 0, data.Length);
  byte[] resp = new byte[2048];
  var memStream = new MemoryStream();
  int bytesread = stm.Read(resp, 0, resp.Length);
  while (bytesread > 0)
  {
      memStream.Write(resp, 0, bytesread);
      bytesread = stm.Read(resp, 0, resp.Length);
  }
  return Encoding.GetEncoding(1252).GetString(memStream.ToArray());
}

As a footnote for other variations on this writing network code...when doing a Read where you want to avoid a "block", you can check the DataAvailable flag and then ONLY read what is in the buffer checking the .Length property e.g. stm.Read(resp, 0, stm.Length);

Try using:

ActionBar ab = getSupportActionBar();
ab.setHomeButtonEnabled(true);
ab.setDisplayUseLogoEnabled(true);
ab.setLogo(R.drawable.ic_launcher);

Alternative to raising exception or attempting to recreate a now empty table - while still enabling migration rollback, redo etc -

def change
  drop_table(:users, force: true) if ActiveRecord::Base.connection.tables.include?('users')
end

There are two problems with your attempt.

First, you've used n+1 instead of i+1, so you're going to return something like [5, 5, 5, 5] instead of [1, 2, 3, 4].

Second, you can't for-loop over a number like n, you need to loop over some kind of sequence, like range(n).

So:

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

But if you already have the range function, you don't need this at all; you can just return range(1, n+1), as arshaji showed.

So, how would you build this yourself? You don't have a sequence to loop over, so instead of for, you have to build it yourself with while:

def naturalNumbers(n):
    results = []
    i = 1
    while i <= n:
        results.append(i)
        i += 1
    return results

Of course in real-life code, you should always use for with a range, instead of doing things manually. In fact, even for this exercise, it might be better to write your own range function first, just to use it for naturalNumbers. (It's already pretty close.)

There is one more option, if you want to get clever.

If you have a list, you can slice it. For example, the first 5 elements of my_list are my_list[:5]. So, if you had an infinitely-long list starting with 1, that would be easy. Unfortunately, you can't have an infinitely-long list… but you can have an iterator that simulates one very easily, either by using count or by writing your own 2-liner equivalent. And, while you can't slice an iterator, you can do the equivalent with islice. So:

from itertools import count, islice
def naturalNumbers(n):
    return list(islice(count(1), n))

You are facing issue in

 s1.name="Paolo";

because, in the LHS, you're using an array type, which is not assignable.

To elaborate, from C11, chapter §6.5.16

assignment operator shall have a modifiable lvalue as its left operand.

and, regarding the modifiable lvalue, from chapter §6.3.2.1

A modifiable lvalue is an lvalue that does not have array type, [...]

You need to use strcpy() to copy into the array.

That said, data s1 = {"Paolo", "Rossi", 19}; works fine, because this is not a direct assignment involving assignment operator. There we're using a brace-enclosed initializer list to provide the initial values of the object. That follows the law of initialization, as mentioned in chapter §6.7.9

Each brace-enclosed initializer list has an associated current object. When no designations are present, subobjects of the current object are initialized in order according to the type of the current object: array elements in increasing subscript order, structure members in declaration order, and the first named member of a union.[....]

Here's one way to solve it. Remove non-numeric characters then cast it as a number.

cast(regexp_replace('0419 853 694', '[^0-9]+', '') as number)

Try this below code for binding html through attr

.directive('dynamic', function ($compile) {
    return {
      restrict: 'A',
      replace: true,
      scope: { dynamic: '=dynamic'},
      link: function postLink(scope, element, attrs) {
        scope.$watch( 'attrs.dynamic' , function(html){
          element.html(scope.dynamic);
          $compile(element.contents())(scope);
        });
      }
    };
  });

Try this element.html(scope.dynamic); than element.html(attr.dynamic);

Take a look at your code :

 getUsers(): Observable<User[]> {
        return Observable.create(observer => {
            this.http.get('http://users.org').map(response => response.json();
        })
    }

and code from https://angular.io/docs/ts/latest/tutorial/toh-pt6.html (BTW. really good tutorial, you should check it out)

 getHeroes(): Promise<Hero[]> {
    return this.http.get(this.heroesUrl)
               .toPromise()
               .then(response => response.json().data as Hero[])
               .catch(this.handleError);
  }

The HttpService inside Angular2 already returns an observable, sou don't need to wrap another Observable around like you did here:

   return Observable.create(observer => {
        this.http.get('http://users.org').map(response => response.json()

Try to follow the guide in link that I provided. You should be just fine when you study it carefully.

---EDIT----

First of all WHERE you log the this.users variable? JavaScript isn't working that way. Your variable is undefined and it's fine, becuase of the code execution order!

Try to do it like this:

  getUsers(): void {
        this.userService.getUsers()
            .then(users => {
               this.users = users
               console.log('this.users=' + this.users);
            });


    }

See where the console.log(...) is!

Try to resign from toPromise() it's seems to be just for ppl with no RxJs background.

Catch another link: https://scotch.io/tutorials/angular-2-http-requests-with-observables Build your service once again with RxJs observables.

In the click event "this" is the a tag that was clicked

jQuery('.class1 a').click( function() {
   var divToSlide = $(this).parent().find(".class2");
   if (divToSlide.is(":hidden")) {
      divToSlide.slideDown("slow");
   } else {
      divToSlide.slideUp();
   }
});

There's multiple ways to get to the div though you could also use .siblings, .next etc

I suggest the Timer, it allows you to schedule a method to be called on a very specific interval. This will not block your UI, and keep your app resonsive while the method is being executed.

The other option, is the wait(); method, this will block the current thread for the specified length of time. This will cause your UI to stop responding if you do this on the UI thread.

If you're doing automation and want to get coordinates of where to click, simplest and shortest approach would be:

import pyautogui

while True:
    print(pyautogui.position())

This will track your mouse position and would keep on printing coordinates.

Read this article on how to convert a silverlight theme to WPF... The have a look at the Silverlight toolkit, thy released loads of free silverlight themes!!!

• Expression Dark
• Expression Light
• Rainier Purple
• Rainier Orange
• Shiny Blue
• Shiny Red

You can use Timer

Timer timer = new Timer();

timer.schedule( new TimerTask() {
    public void run() {
       // do your work 
    }
 }, 0, 60*1000);

When the times comes

  timer.cancel();

To shut it down.

We can use - hasOwnProperty.call(obj, key);

The underscore.js way -

if(_.has(this.options, 'login')){
  //key 'login' exists in this.options 
}

_.has = function(obj, key) {
  return hasOwnProperty.call(obj, key);
};

You can extend array functionality with the next:

Array.prototype.groupBy = function(prop) {
  var result = this.reduce(function (groups, item) {
      const val = item[prop];
      groups[val] = groups[val] || [];
      groups[val].push(item);
      return groups;
  }, {});
  return Object.keys(result).map(function(key) {
      return result[key];
  });
};

Usage example:

/* re-usable function */_x000D_
Array.prototype.groupBy = function(prop) {_x000D_
  var result = this.reduce(function (groups, item) {_x000D_
      const val = item[prop];_x000D_
      groups[val] = groups[val] || [];_x000D_
      groups[val].push(item);_x000D_
      return groups;_x000D_
  }, {});_x000D_
  return Object.keys(result).map(function(key) {_x000D_
      return result[key];_x000D_
  });_x000D_
};_x000D_
_x000D_
var myArray = [_x000D_
  {group: "one", color: "red"},_x000D_
  {group: "two", color: "blue"},_x000D_
  {group: "one", color: "green"},_x000D_
  {group: "one", color: "black"}_x000D_
]_x000D_
_x000D_
console.log(myArray.groupBy('group'));

Credits: @Wahinya Brian

You can simply open the phpmyadmin page from your browser, then open any existing database -> go to Privileges tab, click on your root user and then a popup window will appear, you can set your password there.. Hope this Helps.

It worked for me this way:

Step1: Open System Preference > MySQL > Initialize Database.

Step2: Put password you used while installing MySQL.

Step3: Start MySQL server.

Step4: Come back to MySQL Workbench and double connect/ create a new one.

How about just doing the following:

_richTextBox.SelectAll();
string myText = _richTextBox.Selection.Text;

Nested Depth for BSON Documents: MongoDB supports no more than 100 levels of nesting for BSON documents.

More more info vist

Using echo to print values of variables is a common Bash pitfall. Reference link:

http://mywiki.wooledge.org/BashPitfalls#echo_.24foo

ScriptManager control can also be used to reference javascript files. One catch is that the ScriptManager control needs to be place inside the form tag. I myself prefer ScriptManager control and generally place it just above the closing form tag.

<asp:ScriptManager ID="sm" runat="server">
    <Scripts>
        <asp:ScriptReference Path="~/Scripts/yourscript.min.js" />
    </Scripts>
</asp:ScriptManager>

See with the help of the following example if you can use literals and '$' sign in your case.

    function doHomework(subject) {
    
      alert(\`Starting my ${subject} homework.\`);
    
    }

doHomework('maths');

The statement a = a + " " + b + " " + c can be broken down based upon pointers.

a + " " says give me what a points to, which can't be changed, and add " " to my current working set.

memory:

working_set = "Dog "
a = "Dog" 
b = "eats"
c = "treats"

+ b says give me what b points to, which can't be changed, and add it to current working set.

memory:

working_set = "Dog eats"
a = "Dog" 
b = "eats"
c = "treats"

+ " " + c says add " " to the current set. Then give me what c points to, which can't be changed, and add it to current working set. memory:

working_set = "Dog eats treats"
a = "Dog" 
b = "eats"
c = "treats"

Finally, a = says set my pointer to point to the resulting set.

memory:

a = "Dog eats treats"
b = "eats"
c = "treats"

"Dog" is reclaimed, because no more pointers connect to it's chunk of memory. We never modified the memory section "Dog" resided in, which is what is meant by immutable. However, we can change which labels, if any, point to that section of memory.

You can restart an existing container after it exited and your changes are still there.

docker start  `docker ps -q -l` # restart it in the background
docker attach `docker ps -q -l` # reattach the terminal & stdin

Yes, %d means decimal, but it means decimal number system, not decimal point.

Further, as a complement to the former post, you can also control the number of decimal points to show. Try this,

System.out.printf("%.2f %.1f",d,f); // prints 1.20 1.2

For more please refer to the API docs.

One can avoid the AttributeError brought about by set_axis_labels() method by using the matplotlib.pyplot.xlabel and matplotlib.pyplot.ylabel.

matplotlib.pyplot.xlabel sets the x-axis label while the matplotlib.pyplot.ylabel sets the y-axis label of the current axis.

Solution code:

import pandas as pd
import seaborn as sns
import matplotlib.pyplot as plt

fake = pd.DataFrame({'cat': ['red', 'green', 'blue'], 'val': [1, 2, 3]})
fig = sns.barplot(x = 'val', y = 'cat', data = fake, color = 'black')
plt.xlabel("Colors")
plt.ylabel("Values")
plt.title("Colors vs Values") # You can comment this line out if you don't need title
plt.show(fig)

Output figure:

I just fought with this very thing and this update didn't work.

This eventually did in Swift:

let myUrlStr : String = myUrl!.relativePath!

The following creates a generic function, taking an array of any size and of any type by reference:

template<typename T, std::size_t S>
void my_func(T (&arr)[S]) {
   // do stuff
}

play with the code.

Sass supports @if statements. (See the documentation.)

You could write your mixin like this:

@mixin box-shadow($top, $left, $blur, $color, $inset:"") {
  @if $inset != "" {
    -webkit-box-shadow:$top $left $blur $color $inset;
    -moz-box-shadow:$top $left $blur $color $inset;
    box-shadow:$top $left $blur $color $inset;
  }
}

You could use setInterval for this.

<script type="text/javascript">
function myFunction () {
    console.log('Executed!');
}

var interval = setInterval(function () { myFunction(); }, 60000);
</script>

Disable the timer by setting clearInterval(interval).

See this Fiddle: http://jsfiddle.net/p6NJt/2/

Swift version:

If you are in a Navigation Controller:

let viewController: ViewController = self.storyboard?.instantiateViewControllerWithIdentifier("VC") as ViewController
self.navigationController?.pushViewController(viewController, animated: true)

Or if you just want to present a new view:

let viewController: ViewController = self.storyboard?.instantiateViewControllerWithIdentifier("VC") as ViewController
self.presentViewController(viewController, animated: true, completion: nil)

It is fairly easy to understand. The "-1" stands for "unknown dimension" which can should be infered from another dimension. In this case, if you set your matrix like this:

a = numpy.matrix([[1, 2, 3, 4], [5, 6, 7, 8]])

Modify your matrix like this:

b = numpy.reshape(a, -1)

It will call some deafult operations to the matrix a, which will return a 1-d numpy array/martrix.

However, I don't think it is a good idea to use code like this. Why not try:

b = a.reshape(1,-1)

It will give you the same result and it's more clear for readers to understand: Set b as another shape of a. For a, we don't how much columns it should have(set it to -1!), but we want a 1-dimension array(set the first parameter to 1!).

A more general answer would be to import java.util.Date, then when you need to set a timestamp equal to the current date, simply set it equal to new Date().

Enhanced for loop:

for (String element : array) {

    // rest of code handling current element
}

Traditional for loop equivalent:

for (int i=0; i < array.length; i++) {
    String element = array[i]; 

    // rest of code handling current element
}

Take a look at these forums: https://blogs.oracle.com/CoreJavaTechTips/entry/using_enhanced_for_loops_with

http://www.java-tips.org/java-se-tips/java.lang/the-enhanced-for-loop.html

Avoid changing of "display" style inside of hover css event. I had "display: block" in hover state. After removing ios went on lins by single tap. By the way it seems that latest IOS updates fixed this "feature"

Based on Vikas answer but with a slight modification: The Uri is received by parameter:

private void showPhoto(Uri photoUri){
    Intent intent = new Intent();
    intent.setAction(Intent.ACTION_VIEW);
    intent.setDataAndType(photoUri, "image/*");
    startActivity(intent);
}

I think you are trying to run some utility or shell script from UNIX\LINUX which has some GUI. Anyways

SOLUTION: dude all you need is an XServer & X11 forwarding enabled. I use XMing (XServer). You are already enabling X11 forwarding. Just Install it(XMing) and keep it running when you create the session with PuTTY.

If you're looking for a recursive directory listing solutions. Use below code I hope it should help you.

<?php
/**
 * Function for recursive directory file list search as an array.
 *
 * @param mixed $dir Main Directory Path.
 *
 * @return array
 */
function listFolderFiles($dir)
{
    $fileInfo     = scandir($dir);
    $allFileLists = [];

    foreach ($fileInfo as $folder) {
        if ($folder !== '.' && $folder !== '..') {
            if (is_dir($dir . DIRECTORY_SEPARATOR . $folder) === true) {
                $allFileLists[$folder . '/'] = listFolderFiles($dir . DIRECTORY_SEPARATOR . $folder);
            } else {
                $allFileLists[$folder] = $folder;
            }
        }
    }

    return $allFileLists;
}//end listFolderFiles()


$dir = listFolderFiles('your searching directory path ex:-F:\xampp\htdocs\abc');
echo '<pre>';
print_r($dir);
echo '</pre>'

?>

You could do this if it's short:

int[] array = {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1};

but that gets bad for more than just a few.

Easier would be a for loop:

  int[] myArray = new int[10];
  for (int i = 0; i < array.length; i++)
       myArray[i] = -1;

Edit: I also like the Arrays.fill() option other people have mentioned.

When you define different build configurations in your visual studio solution for your projects using a tool like ConfigurationTransform, you may want your Teamcity build, to build you a specified build configuration. You may have build configurations e.g., Debug, Release, Dev, UAT, Prod etc defined. This means, you will have MSBuild Configuration transformation setup for the different configurations. These different configurations are usually used when you have different configurations, e.g. different database connection strings, for the different environment. This is very common because you would have a different database for your production environment from your playground development environment.

They say a picture is worth a thousand words, please see the image below how you would specify multiple build configurations in Teamcity.

In the commandline input text box, specify as below

/p:OutputPath=Publish;Configuration=Dev

Here, I have specified two commandline build configurations/arguments OutputPath and build Configuration with values Publish and Dev respectively, but it could have been, UAT or Prod configuration. If you want more, simply separate them by semi-colon,;

Try this.

// Directory
$directory = "/dir";

// Returns array of files
$files = scandir($directory);

// Count number of files and store them to variable..
$num_files = count($files)-2;

Not counting the '.' and '..'.

This solved my problem : Sample alter table statement to change the ownership.

ALTER TABLE databasechangelog OWNER TO arwin_ash;
ALTER TABLE databasechangeloglock OWNER TO arwin_ash;

While pop and delete both take indices to remove an element as stated in above comments. A key difference is the time complexity for them. The time complexity for pop() with no index is O(1) but is not the same case for deletion of last element.

If your use case is always to delete the last element, it's always preferable to use pop() over delete(). For more explanation on time complexities, you can refer to https://www.ics.uci.edu/~pattis/ICS-33/lectures/complexitypython.txt

If you want to do 1 file at a time you can go to the History view for the file assuming you have an Eclipse SVN plugin installed. "Team->Show History"

In the History view, find the last good version of that file, right click and choose "Get Contents". This will replace your current version with that version's contents. Then you can commit the changes when you've fixed it all up.

No, unlike in a lot of other languages, XSLT variables cannot change their values after they are created. You can however, avoid extraneous code with a technique like this:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/>

  <xsl:variable name="mapping">
    <item key="1" v1="A" v2="B" />
    <item key="2" v1="X" v2="Y" />
  </xsl:variable>
  <xsl:variable name="mappingNode"
                select="document('')//xsl:variable[@name = 'mapping']" />

  <xsl:template match="....">
    <xsl:variable name="testVariable" select="'1'" />

    <xsl:variable name="values" select="$mappingNode/item[@key = $testVariable]" />

    <xsl:variable name="variable1" select="$values/@v1" />
    <xsl:variable name="variable2" select="$values/@v2" />
  </xsl:template>
</xsl:stylesheet>

In fact, once you've got the values variable, you may not even need separate variable1 and variable2 variables. You could just use $values/@v1 and $values/@v2 instead.

$count = DB::table('category_issue')->count();

will give you the number of items.

For more detailed information check Fluent Query Builder section in beautiful Laravel Documentation.

jQuery provides a method called "siblings()" which helps us to return all sibling elements of the selected element. For example, if you want to apply CSS to the sibling selectors, you can use this method. Below is an example which illustrates this. You can try this example and play with it to learn how it works.

$("p").siblings("h4").css({"color": "red", "border": "2px solid red"});

The best way to deal with this (if a declaration file is not available on DefinitelyTyped) is to write declarations only for the things you use rather than the entire library. This reduces the work a lot - and additionally the compiler is there to help out by complaining about missing methods.

echo "12|23|11" | awk '{split($0,a,"|"); print a[3] a[2] a[1]}'

The best way to bring in an Eclipse/ADT project is to import it directly into Android Studio. At first GO to Eclipse project & delete the project.properties file.

After that, open the Android studio Tool & import Eclipse project(Eclipse ADT, Gradle etc).

The problem happened to me just in production just because I imported jquery with HTTP and not HTTPS (and production is HTTPS)

How can I programatically (C#) ZIP a file (in Windows) without using any third party libraries?

If using the 4.5+ Framework, there is now the ZipArchive and ZipFile classes.

using (ZipArchive zip = ZipFile.Open("test.zip", ZipArchiveMode.Create))
{
    zip.CreateEntryFromFile(@"c:\something.txt", "data/path/something.txt");
}

You need to add references to:

• System.IO.Compression
• System.IO.Compression.FileSystem

For .NET Core targeting net46, you need to add dependencies for

• System.IO.Compression
• System.IO.Compression.ZipFile

Example project.json:

"dependencies": {
  "System.IO.Compression": "4.1.0",
  "System.IO.Compression.ZipFile": "4.0.1"
},

"frameworks": {
  "net46": {}
}

For .NET Core 2.0, just adding a simple using statement is all that is needed:

• using System.IO.Compression;

POJO: If the class can be executed with underlying JDK,without any other external third party libraries support then its called POJO

JavaBean: If class only contains attributes with accessors(setters and getters) those are called javabeans.Java beans generally will not contain any bussiness logic rather those are used for holding some data in it.

All Javabeans are POJOs but all POJO are not Javabeans

Your Code is Fine just you need to place it inside the ready function.

$(document).ready( function() {
  $("#cpa-form").submit(function(e){
     e.preventDefault();
  });
}

Yes, you can target both x86 and x64 with the same code base in the same project. In general, things will Just Work if you create the right solution configurations in VS.NET (although P/Invoke to entirely unmanaged DLLs will most likely require some conditional code): the items that I found to require special attention are:

• References to outside managed assemblies with the same name but their own specific bitness (this also applies to COM interop assemblies)
• The MSI package (which, as has already been noted, will need to target either x86 or x64)
• Any custom .NET Installer Class-based actions in your MSI package

The assembly reference issue can't be solved entirely within VS.NET, as it will only allow you to add a reference with a given name to a project once. To work around this, edit your project file manually (in VS, right-click your project file in the Solution Explorer, select Unload Project, then right-click again and select Edit). After adding a reference to, say, the x86 version of an assembly, your project file will contain something like:

<Reference Include="Filename, ..., processorArchitecture=x86">
  <HintPath>C:\path\to\x86\DLL</HintPath>
</Reference>

Wrap that Reference tag inside an ItemGroup tag indicating the solution configuration it applies to, e.g:

<ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
   <Reference ...>....</Reference>
</ItemGroup>

Then, copy and paste the entire ItemGroup tag, and edit it to contain the details of your 64-bit DLL, e.g.:

<ItemGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x64' ">
  <Reference Include="Filename, ..., processorArchitecture=AMD64">
     <HintPath>C:\path\to\x64\DLL</HintPath>
   </Reference>
</ItemGroup>

After reloading your project in VS.NET, the Assembly Reference dialog will be a bit confused by these changes, and you may encounter some warnings about assemblies with the wrong target processor, but all your builds will work just fine.

Solving the MSI issue is up next, and unfortunately this will require a non-VS.NET tool: I prefer Caphyon's Advanced Installer for that purpose, as it pulls off the basic trick involved (create a common MSI, as well as 32-bit and 64-bit specific MSIs, and use an .EXE setup launcher to extract the right version and do the required fixups at runtime) very, very well.

You can probably achieve the same results using other tools or the Windows Installer XML (WiX) toolset, but Advanced Installer makes things so easy (and is quite affordable at that) that I've never really looked at alternatives.

One thing you may still require WiX for though, even when using Advanced Installer, is for your .NET Installer Class custom actions. Although it's trivial to specify certain actions that should only run on certain platforms (using the VersionNT64 and NOT VersionNT64 execution conditions, respectively), the built-in AI custom actions will be executed using the 32-bit Framework, even on 64-bit machines.

This may be fixed in a future release, but for now (or when using a different tool to create your MSIs that has the same issue), you can use WiX 3.0's managed custom action support to create action DLLs with the proper bitness that will be executed using the corresponding Framework.

Edit: as of version 8.1.2, Advanced Installer correctly supports 64-bit custom actions. Since my original answer, its price has increased quite a bit, unfortunately, even though it's still extremely good value when compared to InstallShield and its ilk...

Edit: If your DLLs are registered in the GAC, you can also use the standard reference tags this way (SQLite as an example):

<ItemGroup Condition="'$(Platform)' == 'x86'">
    <Reference Include="System.Data.SQLite, Version=1.0.80.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139, processorArchitecture=x86" />
</ItemGroup>
<ItemGroup Condition="'$(Platform)' == 'x64'">
    <Reference Include="System.Data.SQLite, Version=1.0.80.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139, processorArchitecture=AMD64" />
</ItemGroup>

The condition is also reduced down to all build types, release or debug, and just specifies the processor architecture.

I hate to admit how little I've done an iPhone app for, but I can tell you I won't be doing that again. The guy who said that "simple, one function apps can be done .. [by solo developers]... for $5K" is correct; however, that is still lowball, and presumes almost no project design, graphic design or network backend work.

Found a solution that doesnt requires to remember and retype the custom datetime format yyyy-mm-dd hh:mm:ss.000

• On a new cell, write either =NOW() or any valid date+time like 5/30/2017 17:35: It will display correctly in your language, e.g. 5/30/2017 5:35:00 PM
• Select the cell, click on the Format Painter icon (the paint brush)
• Now click on the row header of the column that you want to apply the format.

This will copy a proper datetime format to the whole column, making it display correctly.

There is a concept of a working directory.
This directory is represented by a . (dot).
In relative paths, everything else is relative to it.

Simply put the . (the working directory) is where you run your program.
In some cases the working directory can be changed but in general this is
what the dot represents. I think this is C:\JavaForTesters\ in your case.

So test\..\test.txt means: the sub-directory test
in my working directory, then one level up, then the
file test.txt. This is basically the same as just test.txt.

For more details check here.

http://docs.oracle.com/javase/7/docs/api/java/io/File.html

http://docs.oracle.com/javase/tutorial/essential/io/pathOps.html

Easy code and solution using Microsoft.Office.Interop.Word to converd WORD in PDF

using Word = Microsoft.Office.Interop.Word;

private void convertDOCtoPDF()
{

  object misValue = System.Reflection.Missing.Value;
  String  PATH_APP_PDF = @"c:\..\MY_WORD_DOCUMENT.pdf"

  var WORD = new Word.Application();

  Word.Document doc   = WORD.Documents.Open(@"c:\..\MY_WORD_DOCUMENT.docx");
  doc.Activate();

  doc.SaveAs2(@PATH_APP_PDF, Word.WdSaveFormat.wdFormatPDF, misValue, misValue, misValue, 
  misValue, misValue, misValue, misValue, misValue, misValue, misValue);

  doc.Close();
  WORD.Quit();


  releaseObject(doc);
  releaseObject(WORD);

}

Add this procedure to release memory:

private void releaseObject(object obj)
{
  try
  {
      System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
      obj = null;
  }
  catch (Exception ex)
  {
      //TODO
  }
  finally
  {
     GC.Collect();
  }
}

They're two phrases that describe the same thing from (very slightly) different viewpoints. Parallel programming is describing the situation from the viewpoint of the hardware -- there are at least two processors (possibly within a single physical package) working on a problem in parallel. Concurrent programming is describing things more from the viewpoint of the software -- two or more actions may happen at exactly the same time (concurrently).

The problem here is that people are trying to use the two phrases to draw a clear distinction when none really exists. The reality is that the dividing line they're trying to draw has been fuzzy and indistinct for decades, and has grown ever more indistinct over time.

What they're trying to discuss is the fact that once upon a time, most computers had only a single CPU. When you executed multiple processes (or threads) on that single CPU, the CPU was only really executing one instruction from one of those threads at a time. The appearance of concurrency was an illusion--the CPU switching between executing instructions from different threads quickly enough that to human perception (to which anything less than 100 ms or so looks instantaneous) it looked like it was doing many things at once.

The obvious contrast to this is a computer with multiple CPUs, or a CPU with multiple cores, so the machine is executing instructions from multiple threads and/or processes at exactly the same time; code executing one can't/doesn't have any effect on code executing in the other.

Now the problem: such a clean distinction has almost never existed. Computer designers are actually fairly intelligent, so they noticed a long time ago that (for example) when you needed to read some data from an I/O device such as a disk, it took a long time (in terms of CPU cycles) to finish. Instead of leaving the CPU idle while that happened, they figured out various ways of letting one process/thread make an I/O request, and let code from some other process/thread execute on the CPU while the I/O request completed.

So, long before multi-core CPUs became the norm, we had operations from multiple threads happening in parallel.

That's only the tip of the iceberg though. Decades ago, computers started providing another level of parallelism as well. Again, being fairly intelligent people, computer designers noticed that in a lot of cases, they had instructions that didn't affect each other, so it was possible to execute more than one instruction from the same stream at the same time. One early example that became pretty well known was the Control Data 6600. This was (by a fairly wide margin) the fastest computer on earth when it was introduced in 1964--and much of the same basic architecture remains in use today. It tracked the resources used by each instruction, and had a set of execution units that executed instructions as soon as the resources on which they depended became available, very similar to the design of most recent Intel/AMD processors.

But (as the commercials used to say) wait--that's not all. There's yet another design element to add still further confusion. It's been given quite a few different names (e.g., "Hyperthreading", "SMT", "CMP"), but they all refer to the same basic idea: a CPU that can execute multiple threads simultaneously, using a combination of some resources that are independent for each thread, and some resources that are shared between the threads. In a typical case this is combined with the instruction-level parallelism outlined above. To do that, we have two (or more) sets of architectural registers. Then we have a set of execution units that can execute instructions as soon as the necessary resources become available. These often combine well because the instructions from the separate streams virtually never depend on the same resources.

Then, of course, we get to modern systems with multiple cores. Here things are obvious, right? We have N (somewhere between 2 and 256 or so, at the moment) separate cores, that can all execute instructions at the same time, so we have clear-cut case of real parallelism--executing instructions in one process/thread doesn't affect executing instructions in another.

Well, sort of. Even here we have some independent resources (registers, execution units, at least one level of cache) and some shared resources (typically at least the lowest level of cache, and definitely the memory controllers and bandwidth to memory).

To summarize: the simple scenarios people like to contrast between shared resources and independent resources virtually never happen in real life. With all resources shared, we end up with something like MS-DOS, where we can only run one program at a time, and we have to stop running one before we can run the other at all. With completely independent resources, we have N computers running MS-DOS (without even a network to connect them) with no ability to share anything between them at all (because if we can even share a file, well, that's a shared resource, a violation of the basic premise of nothing being shared).

Every interesting case involves some combination of independent resources and shared resources. Every reasonably modern computer (and a lot that aren't at all modern) has at least some ability to carry out at least a few independent operations simultaneously, and just about anything more sophisticated than MS-DOS has taken advantage of that to at least some degree.

The nice, clean division between "concurrent" and "parallel" that people like to draw just doesn't exist, and almost never has. What people like to classify as "concurrent" usually still involves at least one and often more different types of parallel execution. What they like to classify as "parallel" often involves sharing resources and (for example) one process blocking another's execution while using a resource that's shared between the two.

People trying to draw a clean distinction between "parallel" and "concurrent" are living in a fantasy of computers that never actually existed.

I am using angular 5 and you can simply check the status property of your form using FormGroup e.g.

this.form = new FormGroup({
      firstName: new FormControl('', [Validators.required, validateName]),
      lastName: new FormControl('', [Validators.required, validateName]),
      email: new FormControl('', [Validators.required, validateEmail]),
      dob: new FormControl('', [Validators.required, validateDate])
    });

this.form.status would be "INVALID" unless all the fields pass all the validation rules.

The best part is that it detects changes in real-time.

Assume time column is in timestamp integer msec format

1 day = 86400000 ms

Here you go:

day_divider = 86400000

df['time'] = df['time'].values.astype(dtype='datetime64[ms]') # for msec format

df['time'] = (df['time']/day_divider).values.astype(dtype='datetime64[D]') # for day format

Service: startservice can cause side affects,best way to use messenger and pass data.

private CallBackHandler mServiceHandler= new CallBackHandler(this);
private Messenger mServiceMessenger=null;
//flag with which the activity sends the data to service
private static final int DO_SOMETHING=1;

private static class CallBackHandler extends android.os.Handler {

private final WeakReference<Service> mService;

public CallBackHandler(Service service) {
    mService= new WeakReference<Service>(service);
}

public void handleMessage(Message msg) {
    //Log.d("CallBackHandler","Msg::"+msg);
    if(DO_SOMETHING==msg.arg1)
    mSoftKeyService.get().dosomthing()
}
}

Activity:Get Messenger from Intent fill it pass data and pass the message back to service

private Messenger mServiceMessenger;
@Override
protected void onCreate(Bundle savedInstanceState) {
mServiceMessenger = (Messenger)extras.getParcelable("myHandler");
}


private void sendDatatoService(String data){
Intent serviceIntent= new 
Intent(BaseActivity.this,Service.class);
Message msg = Message.obtain();
msg.obj =data;
msg.arg1=Service.DO_SOMETHING;
mServiceMessenger.send(msg);
}

In cpp, you need to pay special attention to string types when using execvp:

#include <iostream>
#include <string>
#include <cstring>
#include <stdio.h>
#include <unistd.h>
using namespace std;

const size_t MAX_ARGC = 15; // 1 command + # of arguments
char* argv[MAX_ARGC + 1]; // Needs +1 because of the null terminator at the end
// c_str() converts string to const char*, strdup converts const char* to char*
argv[0] = strdup(command.c_str());

// start filling up the arguments after the first command
size_t arg_i = 1;
while (cin && arg_i < MAX_ARGC) {
    string arg;
    cin >> arg;
    if (arg.empty()) {
        argv[arg_i] = nullptr;
        break;
    } else {
        argv[arg_i] = strdup(arg.c_str());
    }
    ++arg_i;
}

// Run the command with arguments
if (execvp(command.c_str(), argv) == -1) {
    // Print error if command not found
    cerr << "command '" << command << "' not found\n";
}

Reference: execlp?execvp?????

Use two view types in the your RVAdapter. One for expanded layout and other for collapsed. And the magic happens with setting android:animateLayoutChanges="true" for RecyclerView Checkout the effect achieved using this at 0:42 in this video

To use the hex encoding in Python 3, use

>>> import codecs
>>> codecs.encode(b"c", "hex")
b'63'

In legacy Python, there are several other ways of doing this:

>>> hex(ord("c"))
'0x63'
>>> format(ord("c"), "x")
'63'
>>> "c".encode("hex")
'63'

If you are seeing this issue with IIS hosting, but not when F5 debugging, try creating a new application in IIS.

This fixed it for me. (windows 10) In the end i deleted the "bad" IIS application and re-created an identical one with the same name.

The difference between RMI and RPC is that:

• RMI as the name indicates Remote Method Invoking: it invokes a method or an object. And
• RPC it invokes a function.

Yes, to comment structural metadata out,

Using <script>/* ... */</script> in .html

Comment out large sections of HTML (Comment Out Block)

my personal way in a .html file is opening: <script>/* and close it with */</script>

<script>/* hiding code go here */</script>

Is a workaround to the problem since is not HTML.

Considering your code in .html...

  <!-- Here starts the sidebar -->
  <div id="sidebar">
  ....
  </div>

<script>/*
  <!-- Here starts the main contents pane -->
  <div id="main-contents">
  ...
  </div>

  <!-- Here starts the footer -->
  <div id="footer">
  ...
  </div>
*/</script>

And in a case is HTML inside PHP file using comment tag <?/* or <?php /* and close it with */?> . Remember that the file must be .php extension and don't work in .html.

<?/* hiding code go here */?>

Considering your code in .php...

  <!-- Here starts the sidebar -->
  <div id="sidebar">
  ....
  </div>

<?/*
  <!-- Here starts the main contents pane -->
  <div id="main-contents">
  ...
  </div>

  <!-- Here starts the footer -->
  <div id="footer">
  ...
  </div>
*/?>

Is worth nothing that is not HTML but a common developer practice is to comment out parts of metadata so that it will not be rendered and/or executed in the browser. In HTML, commenting out multiple lines can be time-consuming. It is useful to exclude pieces of template structural metadata containing comments, CSS or code and systematically commenting out to find the source of an error. It is considered a bad practice to comment blocks out and it is recommended to use a version control system. The attribute "type" is required in HTML4 and optional in HTML5.

If you need both the sorted list and the list of indices, you could do:

L = [2,3,1,4,5]
from operator import itemgetter
indices, L_sorted = zip(*sorted(enumerate(L), key=itemgetter(1)))
list(L_sorted)
>>> [1, 2, 3, 4, 5]
list(indices)
>>> [2, 0, 1, 3, 4]

Or, for Python <2.4 (no itemgetter or sorted):

temp = [(v,i) for i,v in enumerate(L)]
temp.sort
indices, L_sorted = zip(*temp)

p.s. The zip(*iterable) idiom reverses the zip process (unzip).

Update:

To deal with your specific requirements:

"my specific need to sort a list of objects based on a property of the objects. i then need to re-order a corresponding list to match the order of the newly sorted list."

That's a long-winded way of doing it. You can achieve that with a single sort by zipping both lists together then sort using the object property as your sort key (and unzipping after).

combined = zip(obj_list, secondary_list)
zipped_sorted = sorted(combined, key=lambda x: x[0].some_obj_attribute)
obj_list, secondary_list = map(list, zip(*zipped_sorted))

Here's a simple example, using strings to represent your object. Here we use the length of the string as the key for sorting.:

str_list = ["banana", "apple", "nom", "Eeeeeeeeeeek"]
sec_list = [0.123423, 9.231, 23, 10.11001]
temp = sorted(zip(str_list, sec_list), key=lambda x: len(x[0]))
str_list, sec_list = map(list, zip(*temp))
str_list
>>> ['nom', 'apple', 'banana', 'Eeeeeeeeeeek']
sec_list
>>> [23, 9.231, 0.123423, 10.11001]

You can create an autofield. Here is the documentation for the same

Please remember Django won't allow to have more than one AutoField in a model, In your model you already have one for your primary key (which is default). So you'll have to override model's save method and will probably fetch the last inserted record from the table and accordingly increment the counter and add the new record.

Please make that code thread safe because in case of multiple requests you might end up trying to insert same value for different new records.

I actually just thought of an interesting solution. While Windows will not allow you to easily alias programs, you can instead create renamed batch files that will call the current program.

Instead of renaming the executable which will break a lot of thing including pip, create the file python2.bat in the same directory as the python2.exe. Then add the following line:

%~dp0python %*

What does this archaic syntax mean? Well, it's a batch script, (Windows version of bash). %~dp0 gets the current directory and %* will just pass all the arguments to python that were passed to the script.

Repeat for python3.bat

You can also do the same for pip and other utilities, just replace the word python in the file with pip or whathever the filename. The alias will be whatever the file is named.

Best of all, when added to the PATH, Windows ignores the extension so running

python3

Will launch the python3 version and and the command python2 will launch the python2 version.

BTW, this is the same technique Spyder uses to add itself to the path on Windows. :)

Also look at log4net, which makes logging to 1 or more event stores — whether it's the console, the Windows event log, a text file, a network pipe, a SQL database, etc. — pretty trivial. You can even filter stuff in its configuration, for instance, so that only log records of a particular severity (say ERROR or FATAL) from a single component or assembly are directed to a particular event store.

http://logging.apache.org/log4net/

Test Data

DECLARE @Table1 TABLE(ID INT, Value INT)
INSERT INTO @Table1 VALUES (1,100),(1,200),(1,300),(1,400)

Query

SELECT  ID
       ,STUFF((SELECT ', ' + CAST(Value AS VARCHAR(10)) [text()]
         FROM @Table1 
         WHERE ID = t.ID
         FOR XML PATH(''), TYPE)
        .value('.','NVARCHAR(MAX)'),1,2,' ') List_Output
FROM @Table1 t
GROUP BY ID

Result Set

+--------------------------+
¦ ID ¦     List_Output     ¦
¦----+---------------------¦
¦  1 ¦  100, 200, 300, 400 ¦
+--------------------------+

SQL Server 2017 and Later Versions

If you are working on SQL Server 2017 or later versions, you can use built-in SQL Server Function STRING_AGG to create the comma delimited list:

DECLARE @Table1 TABLE(ID INT, Value INT);
INSERT INTO @Table1 VALUES (1,100),(1,200),(1,300),(1,400);


SELECT ID , STRING_AGG([Value], ', ') AS List_Output
FROM @Table1
GROUP BY ID;

Result Set

+--------------------------+
¦ ID ¦     List_Output     ¦
¦----+---------------------¦
¦  1 ¦  100, 200, 300, 400 ¦
+--------------------------+

One way using angular service:

var app = angular.module("home", []);

app.controller('one', function($scope, ser1){
$scope.inputText = ser1;
});


app.controller('two',function($scope, ser1){
$scope.inputTextTwo = ser1;
});

app.factory('ser1', function(){
return {o: ''};
});



<div ng-app='home'>

<div ng-controller='one'>
  Type in text: 
  <input type='text' ng-model="inputText.o"/>
</div>
<br />

<div ng-controller='two'>
  Type in text:
  <input type='text' ng-model="inputTextTwo.o"/>
</div>

</div>

https://jsfiddle.net/1w64222q/

To add to add to the previous answer, there is even a fourth way that can be used

import codecs
encoded4 = codecs.encode(original, 'utf-8')
print(encoded4)

The package libmysqlclient-dev is deprecated, so use the below command to fix it.

Package libmysqlclient-dev is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source

sudo apt-get install default-libmysqlclient-dev

Your submission will cancel the redirect or vice versa.

I do not see the reason for the redirect in the first place since why do you have an order form that does nothing.

That said, here is how to do it. Firstly NEVER put code on the submit button but do it in the onsubmit, secondly return false to stop the submission

NOTE This code will IGNORE the action and ONLY execute the script due to the return false/preventDefault

function redirect() {
  window.location.replace("login.php");
  return false;
}

using

<form name="form1" id="form1" method="post" onsubmit="return redirect()">  
  <input type="submit" class="button4" name="order" id="order" value="Place Order" >
</form>

Or unobtrusively:

window.onload=function() {
  document.getElementById("form1").onsubmit=function() {
    window.location.replace("login.php");
    return false;
  }
}

using

<form id="form1" method="post">  
  <input type="submit" class="button4" value="Place Order" >
</form>

jQuery:

$("#form1").on("submit",function(e) {
   e.preventDefault(); // cancel submission
   window.location.replace("login.php");
});

-----

Example:

$("#form1").on("submit", function(e) {_x000D_
  e.preventDefault(); // cancel submission_x000D_
  alert("this could redirect to login.php"); _x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<form id="form1" method="post" action="javascript:alert('Action!!!')">_x000D_
  <input type="submit" class="button4" value="Place Order">_x000D_
</form>

$host is a variable of the Core module.

$host

This variable is equal to line Host in the header of request or name of the server processing the request if the Host header is not available.

This variable may have a different value from $http_host in such cases: 1) when the Host input header is absent or has an empty value, $host equals to the value of server_name directive; 2)when the value of Host contains port number, $host doesn't include that port number. $host's value is always lowercase since 0.8.17.

$http_host is also a variable of the same module but you won't find it with that name because it is defined generically as $http_HEADER (ref).

$http_HEADER

The value of the HTTP request header HEADER when converted to lowercase and with 'dashes' converted to 'underscores', e.g. $http_user_agent, $http_referer...;

Summarizing:

• $http_host equals always the HTTP_HOST request header.
• $host equals $http_host, lowercase and without the port number (if present), except when HTTP_HOST is absent or is an empty value. In that case, $host equals the value of the server_name directive of the server which processed the request.

This worked for me:

from matplotlib import pyplot as plt
from IPython.display import clear_output
import numpy as np
for i in range(50):
    clear_output(wait=True)
    y = np.random.random([10,1])
    plt.plot(y)
    plt.show()

This work for me: (Only google chrome)

<html>
<head>
    <script>
            function draw(){
                var canvas = document.getElementById("thecanvas");
                var ctx = canvas.getContext("2d");
                ctx.fillStyle = "rgba(125, 46, 138, 0.5)";
                ctx.fillRect(25,25,100,100);
                ctx.fillStyle = "rgba( 0, 146, 38, 0.5)";
                ctx.fillRect(58, 74, 125, 100);
            }

            function downloadImage()
            {
                var canvas = document.getElementById("thecanvas");
                var image = canvas.toDataURL();

                var aLink = document.createElement('a');
                var evt = document.createEvent("HTMLEvents");
                evt.initEvent("click");
                aLink.download = 'image.png';
                aLink.href = image;
                aLink.dispatchEvent(evt);
            }
    </script>
</head>
<body onload="draw()">
    <canvas width=200 height=200 id="thecanvas"></canvas>
    <div><button onclick="downloadImage()">Download</button></div>
    <image id="theimage"></image>
</body>
</html>

I had the same issue and I was "Running" the tests. If I instead "Debug" the tests the Debug output shows just fine like all others Trace and Console. I don't know though how to see the output if you "Run" the tests.

This is not an answer, but too long for a comment.

In reply to JP's answers / comments, I have run the following test to compare the performance of the 2 methods. The Profiler object is a custom class - but in summary, it uses a kernel32 function which is fairly accurate (Private Declare Sub GetLocalTime Lib "kernel32" (lpSystemTime As SYSTEMTIME)).

Sub test()

  Dim origNum As String
  Dim creditOrDebit As String
  Dim b As Boolean
  Dim p As Profiler
  Dim i As Long

  Set p = New_Profiler

  origNum = "30062600006"
  creditOrDebit = "D"

  p.startTimer ("nested_ifs")

  For i = 1 To 1000000

    If creditOrDebit = "D" Then
      If origNum = "006260006" Then
        b = True
      ElseIf origNum = "30062600006" Then
        b = True
      End If
    End If

  Next i

  p.stopTimer ("nested_ifs")
  p.startTimer ("or_and")

  For i = 1 To 1000000

    If (origNum = "006260006" Or origNum = "30062600006") And creditOrDebit = "D" Then
      b = True
    End If

  Next i

  p.stopTimer ("or_and")

  p.printReport

End Sub

The results of 5 runs (in ms for 1m loops):

20-Jun-2012 19:28:25
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:26
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:27
nested_ifs (x1): 140 - Last Run: 140 - Average Run: 140
or_and (x1): 125 - Last Run: 125 - Average Run: 125

20-Jun-2012 19:28:28
nested_ifs (x1): 140 - Last Run: 140 - Average Run: 140
or_and (x1): 141 - Last Run: 141 - Average Run: 141

20-Jun-2012 19:28:29
nested_ifs (x1): 156 - Last Run: 156 - Average Run: 156
or_and (x1): 125 - Last Run: 125 - Average Run: 125

Note

If creditOrDebit is not "D", JP's code runs faster (around 60ms vs. 125ms for the or/and code).

You can do the whole thing using Integer math without needing to instantiate a calendar:

return (System.currentTimeMillis()/1000/3600/24/365.25 +1970);

May be off for an hour or two at new year but I don't get the impression that is an issue?

It appears you could use a list instead of a tuple. This becomes more important I think when you are grabbing attributes instead of 'magic indexes' of a list/tuple.

In my case I wanted to sort by multiple attributes of a class, where the incoming keys were strings. I needed different sorting in different places, and I wanted a common default sort for the parent class that clients were interacting with; only having to override the 'sorting keys' when I really 'needed to', but also in a way that I could store them as lists that the class could share

So first I defined a helper method

def attr_sort(self, attrs=['someAttributeString']:
  '''helper to sort by the attributes named by strings of attrs in order'''
  return lambda k: [ getattr(k, attr) for attr in attrs ]

then to use it

# would defined elsewhere but showing here for consiseness
self.SortListA = ['attrA', 'attrB']
self.SortListB = ['attrC', 'attrA']
records = .... #list of my objects to sort
records.sort(key=self.attr_sort(attrs=self.SortListA))
# perhaps later nearby or in another function
more_records = .... #another list
more_records.sort(key=self.attr_sort(attrs=self.SortListB))

This will use the generated lambda function sort the list by object.attrA and then object.attrB assuming object has a getter corresponding to the string names provided. And the second case would sort by object.attrC then object.attrA.

This also allows you to potentially expose outward sorting choices to be shared alike by a consumer, a unit test, or for them to perhaps tell you how they want sorting done for some operation in your api by only have to give you a list and not coupling them to your back end implementation.

I ran into this exception when try to remove x last items from list. myList.subList(lastIndex, myList.size()).clear(); was the only solution that worked for me.

Query information_schema.columns directly:

select * from information_schema.columns 
where table_name = 'your_table' and table_schema = 'your_database'

Array slicing like in Python (From the rebash library):

array_slice() {
    local __doc__='
    Returns a slice of an array (similar to Python).

    From the Python documentation:
    One way to remember how slices work is to think of the indices as pointing
    between elements, with the left edge of the first character numbered 0.
    Then the right edge of the last element of an array of length n has
    index n, for example:
    ```
    +---+---+---+---+---+---+
    | 0 | 1 | 2 | 3 | 4 | 5 |
    +---+---+---+---+---+---+
    0   1   2   3   4   5   6
    -6  -5  -4  -3  -2  -1
    ```

    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice 1:-2 "${a[@]}")
    1 2 3
    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice 0:1 "${a[@]}")
    0
    >>> local a=(0 1 2 3 4 5)
    >>> [ -z "$(array.slice 1:1 "${a[@]}")" ] && echo empty
    empty
    >>> local a=(0 1 2 3 4 5)
    >>> [ -z "$(array.slice 2:1 "${a[@]}")" ] && echo empty
    empty
    >>> local a=(0 1 2 3 4 5)
    >>> [ -z "$(array.slice -2:-3 "${a[@]}")" ] && echo empty
    empty
    >>> [ -z "$(array.slice -2:-2 "${a[@]}")" ] && echo empty
    empty

    Slice indices have useful defaults; an omitted first index defaults to
    zero, an omitted second index defaults to the size of the string being
    sliced.
    >>> local a=(0 1 2 3 4 5)
    >>> # from the beginning to position 2 (excluded)
    >>> echo $(array.slice 0:2 "${a[@]}")
    >>> echo $(array.slice :2 "${a[@]}")
    0 1
    0 1

    >>> local a=(0 1 2 3 4 5)
    >>> # from position 3 (included) to the end
    >>> echo $(array.slice 3:"${#a[@]}" "${a[@]}")
    >>> echo $(array.slice 3: "${a[@]}")
    3 4 5
    3 4 5

    >>> local a=(0 1 2 3 4 5)
    >>> # from the second-last (included) to the end
    >>> echo $(array.slice -2:"${#a[@]}" "${a[@]}")
    >>> echo $(array.slice -2: "${a[@]}")
    4 5
    4 5

    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice -4:-2 "${a[@]}")
    2 3

    If no range is given, it works like normal array indices.
    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice -1 "${a[@]}")
    5
    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice -2 "${a[@]}")
    4
    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice 0 "${a[@]}")
    0
    >>> local a=(0 1 2 3 4 5)
    >>> echo $(array.slice 1 "${a[@]}")
    1
    >>> local a=(0 1 2 3 4 5)
    >>> array.slice 6 "${a[@]}"; echo $?
    1
    >>> local a=(0 1 2 3 4 5)
    >>> array.slice -7 "${a[@]}"; echo $?
    1
    '
    local start end array_length length
    if [[ $1 == *:* ]]; then
        IFS=":"; read -r start end <<<"$1"
        shift
        array_length="$#"
        # defaults
        [ -z "$end" ] && end=$array_length
        [ -z "$start" ] && start=0
        (( start < 0 )) && let "start=(( array_length + start ))"
        (( end < 0 )) && let "end=(( array_length + end ))"
    else
        start="$1"
        shift
        array_length="$#"
        (( start < 0 )) && let "start=(( array_length + start ))"
        let "end=(( start + 1 ))"
    fi
    let "length=(( end - start ))"
    (( start < 0 )) && return 1
    # check bounds
    (( length < 0 )) && return 1
    (( start < 0 )) && return 1
    (( start >= array_length )) && return 1
    # parameters start with $1, so add 1 to $start
    let "start=(( start + 1 ))"
    echo "${@: $start:$length}"
}
alias array.slice="array_slice"

This is a quick solution in case you want to convert more columns of your pandas.DataFrame from float to integer considering also the case that you can have NaN values.

cols = ['col_1', 'col_2', 'col_3', 'col_4']
for col in cols:
   df[col] = df[col].apply(lambda x: int(x) if x == x else "")

I tried with else x) and else None), but the result is still having the float number, so I used else "".

Both commands are correct

php_value post_max_size 30M 

php_value upload_max_filesize 30M 

BUT to use the .htaccess you have to enable rewrite_module in Apache config file. In httpd.conf find this line:

# LoadModule rewrite_module modules/mod_rewrite.so

and remove the #.

The text color can be changed using,

<span style='color:green'> message/text </span>

Actually, Ruby does have an in-place editing feature. Like Perl, you can say

ruby -pi.bak -e "gsub(/oldtext/, 'newtext')" *.txt

This will apply the code in double-quotes to all files in the current directory whose names end with ".txt". Backup copies of edited files will be created with a ".bak" extension ("foobar.txt.bak" I think).

NOTE: this does not appear to work for multiline searches. For those, you have to do it the other less pretty way, with a wrapper script around the regex.

vim +21490go script.py

From the command line will open the file and take you to position 21490 in the buffer.

Triggering it from the command line like this allows you to automate a script to parse the exception message and open the file to the problem position.

Excerpt from man vim:

+{command}

-c {command}

{command} will be executed after the first file has been read. {command} is interpreted as an Ex command. If the {command} contains spaces it must be enclosed in double quotes (this depends on the shell that is used).

-(void)showAlert{

    UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"Title"
                                                                   message:"Message"
                                                            preferredStyle:UIAlertControllerStyleAlert];

    UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault
                                                          handler:^(UIAlertAction * action) {}];

    [alert addAction:defaultAction];
    [self presentViewController:alert animated:YES completion:nil];
}

[self showAlert]; // calling Method

For anyone else who stumbles across this thread but needs to find or create an object with attributes that might change depending on the circumstances, add the following method to your model:

# Return the first object which matches the attributes hash
# - or -
# Create new object with the given attributes
#
def self.find_or_create(attributes)
  Model.where(attributes).first || Model.create(attributes)
end

Optimization tip: regardless of which solution you choose, consider adding indexes for the attributes you are querying most frequently.

MySQL 5.7 changed the secure model: now MySQL root login requires a sudo

The simplest (and safest) solution will be create a new user and grant required privileges.

1. Connect to mysql

sudo mysql --user=root mysql

2. Create a user for phpMyAdmin

CREATE USER 'phpmyadmin'@'localhost' IDENTIFIED BY 'some_pass';
GRANT ALL PRIVILEGES ON *.* TO 'phpmyadmin'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;

Reference - https://askubuntu.com/questions/763336/cannot-enter-phpmyadmin-as-root-mysql-5-7

@: one-way binding

=: two-way binding

&: function binding

Display Your Video First Frame as Thumbnail:

Add preload="metadata" to your video tag and the second of the first frame #t=0.5 to your video source:

<video width="400" controls="controls" preload="metadata">_x000D_
  <source src="https://www.w3schools.com/html/mov_bbb.mp4#t=0.5" type="video/mp4">_x000D_
</video>

You can reset the padding (and I think everything else) with initial to the default.

p {
    padding: initial;
}

Use : ' to open and ' to close.

For example:

: '
This is a
very neat comment
in bash
'

This is from Vegas's example found here

The best way to retrieve your public folder path from your Laravel config is the function:

$myPublicFolder = public_path();
$savePath = $mypublicPath."enter_path_to_save";
$path = $savePath."filename.ext";
return File::put($path , $data);

There is no need to have all the variables, but this is just for a demonstrative purpose.

Hope this helps, GRnGC

If you set the server output in ON mode before the entire code, it works, otherwise put_line() will not work. Try it!

The code is,

set serveroutput on;
CREATE OR REPLACE PROCEDURE PROC1(invoicenr IN NUMBER, amnt OUT NUMBER)
AS BEGIN
SELECT AMOUNT INTO amnt FROM INVOICE WHERE INVOICE_NR = invoicenr;
END;

And then call the function as it is:

DECLARE
amount NUMBER;
BEGIN
PROC1(1000001, amount);
dbms_output.put_line(amount);
END;

I have abandoned using mysqli. It is simply too unstable. I've had queries that crash PHP using mysqli but work just fine with the mysql package. Also mysqli crashes on LONGTEXT columns. This bug has been raised in various forms since at least 2005 and remains broken. I'd honestly like to use prepared statements but mysqli just isn't reliable enough (and noone seems to bother fixing it). If you really want prepared statements go with PDO.

just close the eclipse and avd emulator and restart it. It works fine

Assuming that you are using a spfile to start the database

alter system set open_cursors = 1000 scope=both;

If you are using a pfile instead, you can change the setting for the running instance

alter system set open_cursors = 1000 

You would also then need to edit the parameter file to specify the new open_cursors setting. It would generally be a good idea to restart the database shortly thereafter to make sure that the parameter file change works as expected (it's highly annoying to discover months later the next time that you reboot the database that some parameter file change than no one remembers wasn't done correctly).

I'm also hoping that you are certain that you actually need more than 300 open cursors per session. A large fraction of the time, people that are adjusting this setting actually have a cursor leak and they are simply trying to paper over the bug rather than addressing the root cause.

This worked for me in TFS MSBuild Argument. Note the number of slashes.

/p:DefaultPackageOutputDir="\\Rdevnet\Visual Studio Projects\Insurance\"

CSS3 has a new filter attribute which will only work in webkit browsers supported in webkit browsers and in Firefox. It does not have support in IE or Opera mini:

img {_x000D_
   -webkit-filter: invert(1);_x000D_
   filter: invert(1);_x000D_
   }

<img src="http://i.imgur.com/1H91A5Y.png">

%j works for only Node.js. %j converts a value to a JSON string and inserts it.

console.log('%j new messages for', 7, 'john')
// 7 new messages for john

More string substitutions here:

• https://exploringjs.com/impatient-js/ch_console.html

Docs:

• Chrome: https://developers.google.com/web/tools/chrome-devtools/console/console-write#string_substitution_and_formatting
• Firefox: https://developer.mozilla.org/en-US/docs/Web/API/Console#Using_string_substitutions
• IE: https://docs.microsoft.com/en-gb/visualstudio/debugger/javascript-console-commands?view=vs-2019#ConsoleLog
• Node.js: https://docs.microsoft.com/en-gb/visualstudio/debugger/javascript-console-commands?view=vs-2019#ConsoleLog
• Spec: https://console.spec.whatwg.org/#formatter

Use

str_replace('.', '', strrchr($file_name, '.'))

for a quick extension retrieval (if you know for sure your file name has one).

Typescript recognizes the Date interface out of the box - just like you would with a number, string, or custom type. So Just use:

myDate : Date;

Use ampersand to specify the parent selector.

SCSS syntax:

p {
    margin: 2em auto;

    > a {
        color: red;
    }

    &:before {
        content: "";
    }

    &:after {
        content: "* * *";
    }
}

the following seems to work when converting from new API LocalDateTime into java.util.date:

Date.from(ZonedDateTime.of({time as LocalDateTime}, ZoneId.systemDefault()).toInstant());

the reverse conversion can be (hopefully) achieved similar way...

hope it helps...

The GET (and HEAD) method should never be used to do anything that has side-effects. A side-effect might be updating the state of a web application, or it might be charging your credit card. If an action has side-effects another method (POST) should be used instead.

So, a user (or their browser) shouldn't be held accountable for something done by a GET. If some harmful or expensive side-effect occurred as the result of a GET, that would be the fault of the web application, not the user. According to the spec, a user agent must not automatically follow a redirect unless it is a response to a GET or HEAD request.

Of course, a lot of GET requests do have some side-effects, even if it's just appending to a log file. The important thing is that the application, not the user, should be held responsible for those effects.

The relevant sections of the HTTP spec are 9.1.1 and 9.1.2, and 10.3.

This looks like a permissions issue in your home directory. To reclaim ownership of the .npm directory execute:

sudo chown -R $(whoami) ~/.npm

SELECT CAST(FLOOR(CAST(getdate() AS FLOAT)) AS DATETIME)

...is not a good solution, per the comments below.

I would delete this answer, but I'll leave it here as a counter-example since I think the commenters' explanation of why it's not a good idea is still useful.

You could use the following:

var json = @Html.Raw(Json.Encode(@Model.CollegeInformationlist));

This would output the following (without seeing your model I've only included one field):

<script>
    var json = [{"State":"a state"}];   
</script>

Working Fiddle

AspNetCore

AspNetCore uses Json.Serialize intead of Json.Encode

var json = @Html.Raw(Json.Serialize(@Model.CollegeInformationlist));

MVC 5/6

You can use Newtonsoft for this:

    @Html.Raw(Newtonsoft.Json.JsonConvert.SerializeObject(Model, 
Newtonsoft.Json.Formatting.Indented))

This gives you more control of the json formatting i.e. indenting as above, camelcasing etc.

You could use SwiftString (https://github.com/amayne/SwiftString) to do this.

"".join(["string1", "string2", "string3"]) // "string1string2string"
" ".join(["hello", "world"]) // "hello world"

DISCLAIMER: I wrote this extension

The URL should point to your own custom filebrowser url you might have.

I have already done this in one of my projects, and I have posted a tutorial on this topic on my blog

http://www.mixedwaves.com/2010/02/integrating-fckeditor-filemanager-in-ckeditor/

The tutorial gives a step by step instructions about how to integrate the inbuilt FileBrowser of FCKEditor in CKEditor, if you don't want to make our own. Its pretty simple.

For all the databases you have on the server:

mysql> SELECT SCHEMA_NAME 'database', default_character_set_name 'charset', DEFAULT_COLLATION_NAME 'collation' FROM information_schema.SCHEMATA;

Output:

+----------------------------+---------+--------------------+
| database                   | charset | collation          |
+----------------------------+---------+--------------------+
| information_schema         | utf8    | utf8_general_ci    |
| my_database                | latin1  | latin1_swedish_ci  |
...
+----------------------------+---------+--------------------+

For a single Database:

mysql> USE my_database;
mysql> show variables like "character_set_database";

Output:

    +----------------------------+---------+
    | Variable_name              |  Value  |
    +----------------------------+---------+
    | character_set_database     |  latin1 | 
    +----------------------------+---------+

Getting the collation for Tables:

mysql> USE my_database;
mysql> SHOW TABLE STATUS WHERE NAME LIKE 'my_tablename';

OR - will output the complete SQL for create table:

mysql> show create table my_tablename

Getting the collation of columns:

mysql> SHOW FULL COLUMNS FROM my_tablename;

output:

+---------+--------------+--------------------+ ....
| field   | type         | collation          |
+---------+--------------+--------------------+ ....
| id      | int(10)      | (NULL)             |
| key     | varchar(255) | latin1_swedish_ci  |
| value   | varchar(255) | latin1_swedish_ci  |
+---------+--------------+--------------------+ ....

put < ?php tag on the top of your file (starting on frist line of document)

not:

--- Blank space or something ---
<?php

but:

<?php
..your code
header('Location: page1.php');
...

It looks like what you want to do is remove your first merge. You could follow the following procedure:

git checkout master      # Let's make sure we are on master branch
git reset --hard master~ # Let's get back to master before the merge
git pull                 # or git merge remote/master
git merge topic

That would give you what you want.

It is OK to throw from your constructor, but you should make sure that your object is constructed after main has started and before it finishes:

class A
{
public:
  A () {
    throw int ();
  }
};

A a;     // Implementation defined behaviour if exception is thrown (15.3/13)

int main ()
{
  try
  {
    // Exception for 'a' not caught here.
  }
  catch (int)
  {
  }
}

def props(cls):   
  return [i for i in cls.__dict__.keys() if i[:1] != '_']

properties = props(MyClass)

To extrapolate on Felix Kling's comment, you can use .filter() like this:

var sources = images.map(function (img) {
  if(img.src.split('.').pop() === "json") { // if extension is .json
    return null; // skip
  } else {
    return img.src;
  }
}).filter(Boolean);

That will remove falsey values from the array that is returned by .map()

You could simplify it further like this:

var sources = images.map(function (img) {
  if(img.src.split('.').pop() !== "json") { // if extension is .json
    return img.src;
  }
}).filter(Boolean);

Or even as a one-liner using an arrow function, object destructuring and the && operator:

var sources = images.map(({ src }) => src.split('.').pop() !== "json" && src).filter(Boolean);

Another option is to add another tag with flex: auto style in between your tags that you want to fill in the remaining space.

https://jsfiddle.net/tsey5qu4/

The HTML:

<div class="parent">
  <div class="left">Left</div>
  <div class="fill-remaining-space"></div>
  <div class="right">Right</div>
</div>

The CSS:

.fill-remaining-space {
  flex: auto;
}

This is equivalent to flex: 1 1 auto, which absorbs any extra space along the main axis.

Having searched around several posts. On Windows 10 having downloaded and installed Github for Windows 2.10.2 I found the git.exe in

C:\Users\<user>\AppData\Local\Programs\Git\bin

and the git-cmd.exe in

C:\Users\<user>\AppData\Local\Programs\Git

Please note the change to Programs folder within Local from the above posts.

Here is a combination of ceztko's and ng5000's to bring a VB extensions version that doesn't use pinvoke

Imports System.Runtime.CompilerServices

Module ControlExtensions

Dim WM_SETREDRAW As Integer = 11

''' <summary>
''' A stronger "SuspendLayout" completely holds the controls painting until ResumePaint is called
''' </summary>
''' <param name="ctrl"></param>
''' <remarks></remarks>
<Extension()>
Public Sub SuspendPaint(ByVal ctrl As Windows.Forms.Control)

    Dim msgSuspendUpdate As Windows.Forms.Message = Windows.Forms.Message.Create(ctrl.Handle, WM_SETREDRAW, System.IntPtr.Zero, System.IntPtr.Zero)

    Dim window As Windows.Forms.NativeWindow = Windows.Forms.NativeWindow.FromHandle(ctrl.Handle)

    window.DefWndProc(msgSuspendUpdate)

End Sub

''' <summary>
''' Resume from SuspendPaint method
''' </summary>
''' <param name="ctrl"></param>
''' <remarks></remarks>
<Extension()>
Public Sub ResumePaint(ByVal ctrl As Windows.Forms.Control)

    Dim wparam As New System.IntPtr(1)
    Dim msgResumeUpdate As Windows.Forms.Message = Windows.Forms.Message.Create(ctrl.Handle, WM_SETREDRAW, wparam, System.IntPtr.Zero)

    Dim window As Windows.Forms.NativeWindow = Windows.Forms.NativeWindow.FromHandle(ctrl.Handle)

    window.DefWndProc(msgResumeUpdate)

    ctrl.Invalidate()

End Sub

End Module

I like the answer by @thebeancounter, but prefer to parameterize the unknowns, the only problem being a vulnerability to exploits on the table name. If you're sure it's okay, then this works:

def get_col_names(cursor, tablename):
    """Get column names of a table, given its name and a cursor
       (or connection) to the database.
    """
    reader=cursor.execute("SELECT * FROM {}".format(tablename))
    return [x[0] for x in reader.description] 

If it's a problem, you could add code to sanitize the tablename.

Working example

The most efficient way to do this is to use $.map()

Example:

var values = $.map($('#selectBox option'), function(ele) {
   return ele.value; 
});

Put this in your ~/.bashrc (or a file that's source'd from it) which will stop it from being run multiple times unnecessarily per shell:

if [ -z "$SSH_AGENT_PID" ]; then
        eval `ssh-agent -s`
fi

And then add "AddKeysToAgent yes" to ~/.ssh/config:

Host *
    AddKeysToAgent yes

ssh to your server (or git pull) normally and you'll only be asked for password/passphrase once per session.

There is, indeed, prevision for such feature, look http://www.w3.org/TR/css3-values/#attr-notation

This fiddle should work like what you need, but will not for now.

Unfortunately, it's still a draft, and isn't fully implemented on major browsers.

It does work for content on pseudo-elements, though.

This one is noteworthy as well

<div ng-repeat="post in posts" ng-if="post.type=='article'">
  <h1>{{post.title}}</h1>
</div>

use get(0).tagName. See this link

There is also EXISTS:

SELECT count(*) AS post_ct
FROM   posts p
WHERE  EXISTS (SELECT FROM votes v WHERE v.post_id = p.id);

In Postgres and with multiple entries on the n-side like you probably have, it's generally faster than count(DISTINCT post_id):

SELECT count(DISTINCT p.id) AS post_ct
FROM   posts p
JOIN   votes v ON v.post_id = p.id;

The more rows per post there are in votes, the bigger the difference in performance. Test with EXPLAIN ANALYZE.

count(DISTINCT post_id) has to read all rows, sort or hash them, and then only consider the first per identical set. EXISTS will only scan votes (or, preferably, an index on post_id) until the first match is found.

If every post_id in votes is guaranteed to be present in the table posts (referential integrity enforced with a foreign key constraint), this short form is equivalent to the longer form:

SELECT count(DISTINCT post_id) AS post_ct
FROM   votes;

May actually be faster than the EXISTS query with no or few entries per post.

The query you had works in simpler form, too:

SELECT count(*) AS post_ct
FROM  (
    SELECT FROM posts 
    JOIN   votes ON votes.post_id = posts.id 
    GROUP  BY posts.id
    ) sub;

Benchmark

To verify my claims I ran a benchmark on my test server with limited resources. All in a separate schema:

Test setup

Fake a typical post / vote situation:

CREATE SCHEMA y;
SET search_path = y;

CREATE TABLE posts (
  id   int PRIMARY KEY
, post text
);

INSERT INTO posts
SELECT g, repeat(chr(g%100 + 32), (random()* 500)::int)  -- random text
FROM   generate_series(1,10000) g;

DELETE FROM posts WHERE random() > 0.9;  -- create ~ 10 % dead tuples

CREATE TABLE votes (
  vote_id serial PRIMARY KEY
, post_id int REFERENCES posts(id)
, up_down bool
);

INSERT INTO votes (post_id, up_down)
SELECT g.* 
FROM  (
   SELECT ((random()* 21)^3)::int + 1111 AS post_id  -- uneven distribution
        , random()::int::bool AS up_down
   FROM   generate_series(1,70000)
   ) g
JOIN   posts p ON p.id = g.post_id;

All of the following queries returned the same result (8093 of 9107 posts had votes).
I ran 4 tests with EXPLAIN ANALYZE ant took the best of five on Postgres 9.1.4 with each of the three queries and appended the resulting total runtimes.

1. As is.

2. After ..

   ANALYZE posts;
   ANALYZE votes;
   

3. After ..

   CREATE INDEX foo on votes(post_id);
   

4. After ..

   VACUUM FULL ANALYZE posts;
   CLUSTER votes using foo;
   

count(*) ... WHERE EXISTS

1. 253 ms
2. 220 ms
3. 85 ms -- winner (seq scan on posts, index scan on votes, nested loop)
4. 85 ms

count(DISTINCT x) - long form with join

1. 354 ms
2. 358 ms
3. 373 ms -- (index scan on posts, index scan on votes, merge join)
4. 330 ms

count(DISTINCT x) - short form without join

1. 164 ms
2. 164 ms
3. 164 ms -- (always seq scan)
4. 142 ms

Best time for original query in question:

• 353 ms

For simplified version:

• 348 ms

@wildplasser's query with a CTE uses the same plan as the long form (index scan on posts, index scan on votes, merge join) plus a little overhead for the CTE. Best time:

• 366 ms

Index-only scans in the upcoming PostgreSQL 9.2 can improve the result for each of these queries, most of all for EXISTS.

Related, more detailed benchmark for Postgres 9.5 (actually retrieving distinct rows, not just counting):

• Select first row in each GROUP BY group?

The fastest & best implementation of omitting primes:

def PrimeRanges2(a, b):
    arr = range(a, b+1)
    up = int(math.sqrt(b)) + 1
    for d in range(2, up):
        arr = omit_multi(arr, d)

You can try this

string s1 = "Hello";
string s2 = "el";
if(strstr(s1.c_str(),s2.c_str()))
{
   cout << " S1 Contains S2";
}

Consider the limitations of the different Load* methods. From the MSDN docs...

LoadFile does not load files into the LoadFrom context, and does not resolve dependencies using the load path, as the LoadFrom method does.

More information on Load Contexts can be found in the LoadFrom docs.

First, you show that it lies in NP at all.

Then you find another problem that you already know is NP complete and show how you polynomially reduce NP Hard problem to your problem.

Process.Start("explorer.exe" , @"C:\Users");

I had to use this, the other way of just specifying the tgt dir would shut the explorer window when my application terminated.

TemplateBinding is a shorthand for Binding with TemplatedParent but it does not expose all the capabilities of the Binding class, for example you can't control Binding.Mode from TemplateBinding.

You'd use REGEXP_REPLACE in order to remove all non-digit characters from a string:

select regexp_replace(column_name, '[^0-9]', '')
from mytable;

or

select regexp_replace(column_name, '[^[:digit:]]', '')
from mytable;

Of course you can write a function extract_number. It seems a bit like overkill though, to write a funtion that consists of only one function call itself.

create function extract_number(in_number varchar2) return varchar2 is
begin
  return regexp_replace(in_number, '[^[:digit:]]', '');
end; 

CSS3 box-shadow: 4 sides symmetry

1. each side with the same color

:root{
  --color: #f0f;
}

div {
  display: flex;
  flex-flow: row nowrap;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  margin: 50px auto;
  width: 200px;
  height: 100px;
  background: #ccc;
}

.four-sides-with-same-color {
  box-shadow: 0px 0px 10px 5px var(--color);
}

<div class="four-sides-with-same-color"></div>

2. each side with a different color

:root{
  --color1: #00ff4e;
  --color2: #ff004e;
  --color3: #b716e6;
  --color4: #FF5722;
}

div {
  display: flex;
  flex-flow: row nowrap;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  margin: 50px auto;
  width: 200px;
  height: 100px;
  background-color: rgba(255,255,0,0.7);
}

.four-sides-with-different-color {
  box-shadow: 
    10px 0px 5px 0px var(--color1),
    0px 10px 5px 0px var(--color2),
    -10px 0px 5px 0px var(--color3),
    0px -10px 5px 0px var(--color4);
}

<div class="four-sides-with-different-color"></div>

screenshots

refs

https://css-tricks.com/almanac/properties/b/box-shadow/

https://www.cnblogs.com/xgqfrms/p/13264347.html

Here's my solution:

class ColouredFormatter(logging.Formatter):
    RESET = '\x1B[0m'
    RED = '\x1B[31m'
    YELLOW = '\x1B[33m'
    BRGREEN = '\x1B[01;32m'  # grey in solarized for terminals

    def format(self, record, colour=False):
        message = super().format(record)

        if not colour:
            return message

        level_no = record.levelno
        if level_no >= logging.CRITICAL:
            colour = self.RED
        elif level_no >= logging.ERROR:
            colour = self.RED
        elif level_no >= logging.WARNING:
            colour = self.YELLOW
        elif level_no >= logging.INFO:
            colour = self.RESET
        elif level_no >= logging.DEBUG:
            colour = self.BRGREEN
        else:
            colour = self.RESET

        message = colour + message + self.RESET

        return message


class ColouredHandler(logging.StreamHandler):
    def __init__(self, stream=sys.stdout):
        super().__init__(stream)

    def format(self, record, colour=False):
        if not isinstance(self.formatter, ColouredFormatter):
            self.formatter = ColouredFormatter()

        return self.formatter.format(record, colour)

    def emit(self, record):
        stream = self.stream
        try:
            msg = self.format(record, stream.isatty())
            stream.write(msg)
            stream.write(self.terminator)
            self.flush()
        except Exception:
            self.handleError(record)


h = ColouredHandler()
h.formatter = ColouredFormatter('{asctime} {levelname:8} {message}', '%Y-%m-%d %H:%M:%S', '{')
logging.basicConfig(level=logging.DEBUG, handlers=[h])

Wouldn't it just be a case of:

ArrayList<ArrayList<String>> outer = new ArrayList<ArrayList<String>>();
ArrayList<String> nodeList = new ArrayList<String>();

// Fill in nodeList here...

outer.add(nodeList);

Repeat as necesary.

This should return you a list in the format you specified.

You're not assigning the parsed float back to your value var:

value = parseFloat(value).toFixed(2);

should fix things up.

Probably not what the OP is looking for, but since this question has become a list of JS charting library options: jQuery Sparklines is really cool.

[Solved for me]

by removing the duplicate library "JAR file" then remove BuildConfig.java file, Clean project and its work.

The above answers did not help me on Android, thanks to the Pshemo response that worked for me on Android. I will leave some of Pshemo's answer here :

split("\\\\n")

There are three possible ways to do that.

1. Option

   SELECT  lt.* FROM    table_left lt
   LEFT JOIN
       table_right rt
   ON      rt.value = lt.value
   WHERE   rt.value IS NULL
   

2. Option

   SELECT  lt.* FROM    table_left lt
   WHERE   lt.value NOT IN
   (
   SELECT  value
   FROM    table_right rt
   )
   

3. Option

   SELECT  lt.* FROM    table_left lt
   WHERE   NOT EXISTS
   (
   SELECT  NULL
   FROM    table_right rt
   WHERE   rt.value = lt.value
   )
   

Dijkstra's smoothsort is a great sort on already-sorted data. It's a heapsort variant that runs in O(n lg n) worst-case and O(n) best-case. I wrote an analysis of the algorithm, in case you're curious how it works.

Natural mergesort is another really good one for this - it's a bottom-up mergesort variant that works by treating the input as the concatenation of multiple different sorted ranges, then using the merge algorithm to join them together. You repeat this process until all of the input range is sorted. This runs in O(n) time if the data is already sorted and O(n lg n) worst-case. It's very elegant, though in practice it isn't as good as some other adaptive sorts like Timsort or smoothsort.

accounting.js is the way to go. I used it at a project and had very good experience using it.

accounting.formatMoney(4999.99, "€", 2, ".", ","); // €4.999,99
accounting.unformat("€ 1.000.000,00", ","); // 1000000

You can find it at GitHub

It's not like that. ArrayList just uses array as internal respentation. If you add more then 60 elements then underlaying array will be exapanded. How ever you can add as much elements to this array as much RAM you have.

If you want to check the type of input within form, use the following code:

<script>
    function getFind(obj) {
    for (i = 0; i < obj.childNodes.length; i++) {
        if (obj.childNodes[i].tagName == "INPUT") {
            if (obj.childNodes[i].type == "text") {
                alert("this is Text Box.")
            }
            if (obj.childNodes[i].type == "checkbox") {
                alert("this is CheckBox.")
            }
            if (obj.childNodes[i].type == "radio") {
                alert("this is Radio.")
            }
        }
        if (obj.childNodes[i].tagName == "SELECT") {
            alert("this is Select")
        }
    }
}
</script>     

<script>    
    getFind(document.myform);  
</script>

The error seems clear: model objects do not support item assignment. MyModel.objects.latest('id')['foo'] = 'bar' will throw this same error.

It's a little confusing that your model instance is called projectForm...

To reproduce your first block of code in a loop, you need to use setattr

for k,v in session_results.iteritems():
    setattr(projectForm, k, v)

sudo PATH="$PATH:/usr/local/bin" npm install -g <package-name>