Programs & Examples On #Kiosk

I too was searching for this for sometime, and finally was able to do it as I needed, ie Navigation Bar is inaccessible, status bar is inaccessible, even if you long press power button, neither the power menu nor navigation buttons are shown. Thanks to @Assaf Gamliel , his answer took me to the right path. I followed this tutorial with some slight modifications. While specifying Type, I specified WindowManager.LayoutParams.TYPE_SYSTEM_ERROR instead of WindowManager.LayoutParams.TYPE_PHONE, else our "overlay" won't hide the system bars. You can play around with the Flags, Height, Width etc so that it'll behave as you want it to.

As an expansion/enhancement to the brilliant addition made by @rodowi above regarding being able to overwrite a row:

process.stdout.write("Downloading " + data.length + " bytes\r");

Should you not want the terminal cursor to be located at the first character, as I saw in my code, the consider doing the following:

let dots = ''
process.stdout.write(`Loading `)

let tmrID = setInterval(() => {
  dots += '.'
  process.stdout.write(`\rLoading ${dots}`)
}, 1000)

setTimeout(() => {
  clearInterval(tmrID)
  console.log(`\rLoaded in [3500 ms]`)
}, 3500)

By placing the \r in front of the next print statement the cursor is reset just before the replacing string overwrites the previous.

There is a clever way, and frustrating as it is it illustrates the difference between the two different kinds of enums.

Try this:

    func makeDeck() -> Card[] {
      var deck: Card[] = []
      var suits: Suit[] = [.Hearts, .Diamonds, .Clubs, .Spades]
      for i in 1...13 {
        for suit in suits {
          deck += Card(rank: Rank.fromRaw(i)!, suit: suit)
        }
      }
      return deck
    }

The deal is that an enum backed by numbers (raw values) is implicitly explicitly ordered, whereas an enum that isn't backed by numbers is explicitly implicitly unordered.

E.g. when we give the enum values numbers, the language is cunning enough to figure out what order the numbers are in. If on the other hand we don't give it any ordering, when we try to iterate over the values the language throws its hands up in the air and goes "yes, but which one do you want to go first???"

Other languages which can do this (iterating over unordered enums) might be the same languages where everything is 'under the hood' actually a map or dictionary, and you can iterate over the keys of a map, whether there's any logical ordering or not.

So the trick is to provide it with something that is explicitly ordered, in this case instances of the suits in an array in the order we want. As soon as you give it that, Swift is like "well why didn't you say so in the first place?"

The other shorthand trick is to use the forcing operator on the fromRaw function. This illustrates another 'gotcha' about enums, that the range of possible values to pass in is often larger than the range of enums. For instance if we said Rank.fromRaw(60) there wouldn't be a value returned, so we're using the optional feature of the language, and where we start using optionals, forcing will soon follow. (Or alternately the if let construction which still seems a bit weird to me)

All objects in python are implemented via references so the distinction between objects and pointers to objects does not exist in source code.

The python equivalent of NULL is called None (good info here). As all objects in python are implemented via references, you can re-write your struct to look like this:

class Node:
    def __init__(self): #object initializer to set attributes (fields)
        self.val = 0
        self.right = None
        self.left = None

And then it works pretty much like you would expect:

node = Node()
node.val = some_val #always use . as everything is a reference and -> is not used
node.left = Node()

Note that unlike in NULL in C, None is not a "pointer to nowhere": it is actually the only instance of class NoneType. Therefore, as None is a regular object, you can test for it just like any other object:

if node.left == None:
   print("The left node is None/Null.")

Although since None is a singleton instance, it is considered more idiomatic to use is and compare for reference equality:

if node.left is None:
   print("The left node is None/Null.")

Set the seed(x) before generating a set of random numbers and use the same seed to generate the same set of random numbers. Useful in case of reproducing the issues.

>>> from random import *
>>> seed(20)
>>> randint(1,100)
93
>>> randint(1,100)
88
>>> randint(1,100)
99
>>> seed(20)
>>> randint(1,100)
93
>>> randint(1,100)
88
>>> randint(1,100)
99
>>> 

But if your Android App is only for personal purpose or created by you alone, you can use:

me.app_name.app

I had a problem using forEach in IE 11 and also Firefox 49

I have found a workaround like this

Array.prototype.slice.call(document.getElementsByClassName("events")).forEach(function (key) {
        console.log(key.id);
    }

JSTL 1.2 variation leveraged from BalusC answer

<c:set var="baseURL" value="${pageContext.request.requestURL.substring(0, pageContext.request.requestURL.length() - pageContext.request.requestURI.length())}${pageContext.request.contextPath}/" />

<head>
  <base href="${baseURL}" />

There is a package that converts it for you and returns the svg as a string to implement into your reactJS file.

https://www.npmjs.com/package/convert-svg-react

Use the following command

remove(list=c("data_1", "data_2", "data_3"))

I think this will cover any possible scenario for what is in O10:

=IF(ISBLANK(O10),"",IF(O10<TODAY(),IF(TODAY()-O10<>1,CONCATENATE("Due in ",TEXT(TODAY()-O10,"d")," days"),CONCATENATE("Due in ",TEXT(TODAY()-O10,"d")," day")),IF(O10=TODAY(),"Due Today","Overdue")))

For Dates that are before Today, it will tell you how many days the item is due in. If O10 = Today then it will say "Due Today". Anything past Today and it will read overdue. Lastly, if it is blank, the cell will also appear blank. Let me know what you think!

A comprehensive list of browser versions supporting the async parameter is available here

Rails / ruby frameworks are able to do some templating ... it's frequently used to load env variables ...

# fooz.yml
  foo:
    bar: <%= $ENV[:some_var] %>

No idea if this works for javascript frameworks as I think that YML format is superset of json and it depends on what reads the yml file for you.

If you can use the template like that or the << >> or the {{ }} styles depending on your reader, after that you just ...

In another yml file ...

# boo.yml

development:
  fooz: foo

Which allows you to basically insert a variable as your reference that original file each time which is dynamically set. When reading I was also seeing you can create or open YML files as objects on the fly for several languages which allows you to create a file & chain write a series of YML files or just have them all statically pointing to the dynamically created one.

It looks like the class.phpmailer.php file is corrupt. I would download the latest version and try again.

I've always used phpMailer's SMTP feature:

$mail->IsSMTP();
$mail->Host = "localhost";

And if you need debug info:

$mail->SMTPDebug  = 2; // enables SMTP debug information (for testing)
                       // 1 = errors and messages
                       // 2 = messages only

The Maven manual says to do this:

mvn install:install-file -Dfile=non-maven-proj.jar -DgroupId=some.group -DartifactId=non-maven-proj -Dversion=1 -Dpackaging=jar

Can't be sure if this applied to SQL Server Express, but you can still access the "before" data even if your trigger is happening AFTER the update. You need to read the data from either the deleted or inserted table that is created on the fly when the table is changed. This is essentially what @Stamen says, but I still needed to explore further to understand that (helpful!) answer.

The deleted table stores copies of the affected rows during DELETE and UPDATE statements. During the execution of a DELETE or UPDATE statement, rows are deleted from the trigger table and transferred to the deleted table...

The inserted table stores copies of the affected rows during INSERT and UPDATE statements. During an insert or update transaction, new rows are added to both the inserted table and the trigger table...

https://msdn.microsoft.com/en-us/library/ms191300.aspx

So you can create your trigger to read data from one of those tables, e.g.

CREATE TRIGGER <TriggerName> ON <TableName>
AFTER UPDATE
AS
  BEGIN
    INSERT INTO <HistoryTable> ( <columns...>, DateChanged )
    SELECT <columns...>, getdate()
    FROM deleted;
  END;

My example is based on the one here:

http://www.seemoredata.com/en/showthread.php?134-Example-of-BEFORE-UPDATE-trigger-in-Sql-Server-good-for-Type-2-dimension-table-updates

sql-server triggers

The difflib library is useful for this, and comes in the standard library. I like the unified diff format.

http://docs.python.org/2/library/difflib.html#difflib.unified_diff

import difflib
import sys

with open('/tmp/hosts0', 'r') as hosts0:
    with open('/tmp/hosts1', 'r') as hosts1:
        diff = difflib.unified_diff(
            hosts0.readlines(),
            hosts1.readlines(),
            fromfile='hosts0',
            tofile='hosts1',
        )
        for line in diff:
            sys.stdout.write(line)

Outputs:

--- hosts0
+++ hosts1
@@ -1,5 +1,4 @@
 one
 two
-dogs
 three

And here is a dodgy version that ignores certain lines. There might be edge cases that don't work, and there are surely better ways to do this, but maybe it will be good enough for your purposes.

import difflib
import sys

with open('/tmp/hosts0', 'r') as hosts0:
    with open('/tmp/hosts1', 'r') as hosts1:
        diff = difflib.unified_diff(
            hosts0.readlines(),
            hosts1.readlines(),
            fromfile='hosts0',
            tofile='hosts1',
            n=0,
        )
        for line in diff:
            for prefix in ('---', '+++', '@@'):
                if line.startswith(prefix):
                    break
            else:
                sys.stdout.write(line[1:])

Based on the answer given by Lam Vinh, here is a simple batch file that works for me on my 1st gen Nexus 7. It prompts the user to enter the package name and then the database name (without the .sqlite extension) and puts it in c:\temp. This assumes you have the Android sdk set in the environment variables.

@echo off
cd c:\temp\

set /p UserInputPackage= Enter the package name: 
set /p UserInputDB= Enter the database name: 

@echo on
adb shell "run-as %UserInputPackage% chmod 666 /data/data/%UserInputPackage%/databases/%UserInputDB%.sqlite"
adb pull /data/data/%UserInputPackage%/databases/%UserInputDB%.sqlite
@echo off
pause

A lambda is just an anonymous function - a function defined with no name. In some languages, such as Scheme, they are equivalent to named functions. In fact, the function definition is re-written as binding a lambda to a variable internally. In other languages, like Python, there are some (rather needless) distinctions between them, but they behave the same way otherwise.

A closure is any function which closes over the environment in which it was defined. This means that it can access variables not in its parameter list. Examples:

def func(): return h
def anotherfunc(h):
   return func()

This will cause an error, because func does not close over the environment in anotherfunc - h is undefined. func only closes over the global environment. This will work:

def anotherfunc(h):
    def func(): return h
    return func()

Because here, func is defined in anotherfunc, and in python 2.3 and greater (or some number like this) when they almost got closures correct (mutation still doesn't work), this means that it closes over anotherfunc's environment and can access variables inside of it. In Python 3.1+, mutation works too when using the nonlocal keyword.

Another important point - func will continue to close over anotherfunc's environment even when it's no longer being evaluated in anotherfunc. This code will also work:

def anotherfunc(h):
    def func(): return h
    return func

print anotherfunc(10)()

This will print 10.

This, as you notice, has nothing to do with lambdas - they are two different (although related) concepts.

def _col_seq_set(df, col_list, seq_list):
    ''' set dataframe 'df' col_list's sequence by seq_list '''
    col_not_in_col_list = [x for x in list(df.columns) if x not in col_list]
    for i in range(len(col_list)):
        col_not_in_col_list.insert(seq_list[i], col_list[i])

    return df[col_not_in_col_list]
DataFrame.col_seq_set = _col_seq_set

I disagree that you should never want to check an object's type in C++. If you can avoid it, I agree that you should. Saying you should NEVER do this under any circumstance is going too far though. You can do this in a great many languages, and it can make your life a lot easier. Howard Pinsley, for instance, showed us how in his post on C#.

I do a lot of work with the Qt Framework. In general, I model what I do after the way they do things (at least when working in their framework). The QObject class is the base class of all Qt objects. That class has the functions isWidgetType() and isWindowType() as a quick subclass check. So why not be able to check your own derived classes, which is comparable in it's nature? Here is a QObject spin off of some of these other posts:

class MyQObject : public QObject
{
public:
    MyQObject( QObject *parent = 0 ) : QObject( parent ){}
    ~MyQObject(){}

    static bool isThisType( const QObject *qObj )
    { return ( dynamic_cast<const MyQObject*>(qObj) != NULL ); }
};

And then when you are passing around a pointer to a QObject, you can check if it points to your derived class by calling the static member function:

if( MyQObject::isThisType( qObjPtr ) ) qDebug() << "This is a MyQObject!";

Maybe call Directory.GetParent in a loop? That's if you want the full path to each directory and not just the directory names.

There is no need for any External libraries, the JRE System libraries provide all you need.

I am infering that you have a org.w3c.dom.Document object you would like to write to a file

To do that, you use a javax.xml.transform.Transformer:

import org.w3c.dom.Document
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.dom.DOMSource; 
import javax.xml.transform.stream.StreamResult; 

public class XMLWriter {
    public static void writeDocumentToFile(Document document, File file) {

        // Make a transformer factory to create the Transformer
        TransformerFactory tFactory = TransformerFactory.newInstance();

        // Make the Transformer
        Transformer transformer = tFactory.newTransformer();

        // Mark the document as a DOM (XML) source
        DOMSource source = new DOMSource(document);

        // Say where we want the XML to go
        StreamResult result = new StreamResult(file);

        // Write the XML to file
        transformer.transform(source, result);
    }
}

Source: http://docs.oracle.com/javaee/1.4/tutorial/doc/JAXPXSLT4.html

Here is my simple approach to get Current day

public String getCurrentDay(){

    String daysArray[] = {"Sunday","Monday","Tuesday", "Wednesday","Thursday","Friday", "Saturday"};

    Calendar calendar = Calendar.getInstance();
    int day = calendar.get(Calendar.DAY_OF_WEEK);

    return daysArray[day];

}

Using annotations, as described in the question.

Annotation: @Monitor

Annotation on class, app/PagesController.java:

package app;
@Controller
@Monitor
public class PagesController {
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public @ResponseBody String home() {
        return "w00t!";
    }
}

Annotation on method, app/PagesController.java:

package app;
@Controller
public class PagesController {
    @Monitor
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public @ResponseBody String home() {
        return "w00t!";
    }
}

Custom annotation, app/Monitor.java:

package app;
@Component
@Target(value = {ElementType.METHOD, ElementType.TYPE})
@Retention(value = RetentionPolicy.RUNTIME)
public @interface Monitor {
}

Aspect for annotation, app/MonitorAspect.java:

package app;
@Component
@Aspect
public class MonitorAspect {
    @Before(value = "@within(app.Monitor) || @annotation(app.Monitor)")
    public void before(JoinPoint joinPoint) throws Throwable {
        LogFactory.getLog(MonitorAspect.class).info("monitor.before, class: " + joinPoint.getSignature().getDeclaringType().getSimpleName() + ", method: " + joinPoint.getSignature().getName());
    }

    @After(value = "@within(app.Monitor) || @annotation(app.Monitor)")
    public void after(JoinPoint joinPoint) throws Throwable {
        LogFactory.getLog(MonitorAspect.class).info("monitor.after, class: " + joinPoint.getSignature().getDeclaringType().getSimpleName() + ", method: " + joinPoint.getSignature().getName());
    }
}

Enable AspectJ, servlet-context.xml:

<aop:aspectj-autoproxy />

Include AspectJ libraries, pom.xml:

<artifactId>spring-aop</artifactId>
<artifactId>aspectjrt</artifactId>
<artifactId>aspectjweaver</artifactId>
<artifactId>cglib</artifactId>

I wanted to show how powerful it can be aside from just checking "-lt".

Example: I used it to calculate time differences take from Windows event view Application log:

Get the difference between the two date times:

PS> $Obj = ((get-date "10/22/2020 12:51:1") - (get-date "10/22/2020 12:20:1 "))

Object created:

PS> $Obj


Days              : 0
Hours             : 0
Minutes           : 31
Seconds           : 0
Milliseconds      : 0
Ticks             : 18600000000
TotalDays         : 0.0215277777777778
TotalHours        : 0.516666666666667
TotalMinutes      : 31
TotalSeconds      : 1860
TotalMilliseconds : 1860000

Access an item directly:

PS> $Obj.Minutes
31

1. Right click ? copy ? copy element

I have an environment where no mysql tool or phpmyadmin just my php application connecting to a mysql server on a different host but I need to run scripts exported by mysqldump or myadmin. To solve the problem I created a script multi_query as I mentioned here

It can process mysqldump output and phpmyadmin exports without mysql command line tool. I also made some logic to process multiple migration files based on timestamp stored in DB like Rails. I know it needs more error handling but currently does the work for me.

Check it out: https://github.com/kepes/php-migration

It's pure php and don't need any other tools. If you don't process user input with it only scripts made by developers or export tools you can use it safely.

Foreign keys work by joining a column to a unique key in another table, and that unique key must be defined as some form of unique index, be it the primary key, or some other unique index.

At the moment, the only unique index you have is a compound one on ISBN, Title which is your primary key.

There are a number of options open to you, depending on exactly what BookTitle holds and the relationship of the data within it.

I would hazard a guess that the ISBN is unique for each row in BookTitle. ON the assumption this is the case, then change your primary key to be only on ISBN, and change BookCopy so that instead of Title you have ISBN and join on that.

If you need to keep your primary key as ISBN, Title then you either need to store the ISBN in BookCopy as well as the Title, and foreign key on both columns, OR you need to create a unique index on BookTitle(Title) as a distinct index.

More generally, you need to make sure that the column or columns you have in your REFERENCES clause match exactly a unique index in the parent table: in your case it fails because you do not have a single unique index on Title alone.

When one uses flow_from_directory the problem is how to interpret the probability outputs. As in, how to map the probability outputs and the class labels as how flow_from_directory creates one-hot vectors is not known in prior.

We can get a dictionary that maps the class labels to the index of the prediction vector that we get as the output when we use

generator= train_datagen.flow_from_directory("train", batch_size=batch_size)
label_map = (generator.class_indices)

The label_map variable is a dictionary like this

{'class_14': 5, 'class_10': 1, 'class_11': 2, 'class_12': 3, 'class_13': 4, 'class_2': 6, 'class_3': 7, 'class_1': 0, 'class_6': 10, 'class_7': 11, 'class_4': 8, 'class_5': 9, 'class_8': 12, 'class_9': 13}

Then from this the relation can be derived between the probability scores and class names.

Basically, you can create this dictionary by this code.

from glob import glob
class_names = glob("*") # Reads all the folders in which images are present
class_names = sorted(class_names) # Sorting them
name_id_map = dict(zip(class_names, range(len(class_names))))

The variable name_id_map in the above code also contains the same dictionary as the one obtained from class_indices function of flow_from_directory.

Hope this helps!

Using Vue 3:

const app = createApp({})

// register an options object
app.component('my-component', {
  /* ... */
})

....

// retrieve a registered component
const MyComponent = app.component('my-component')

MyComponent.methods.greet();

https://v3.vuejs.org/api/application-api.html#component

Mono Touch is the answer.

http://xamarin.com/monotouch

I believe best practice these days is H/5 * * * *, which means every 5 minutes with a hashing factor to avoid all jobs starting at EXACTLY the same time.

I use this approach:

if (null == drawable) {
  //do stuff
} else {
  //other things
}

This way I find improves the readability of the line - as I read quickly through a source file I can see it's a null check.

With regards to why you can't call .equals() on an object which may be null; if the object reference you have (namely 'drawable') is in fact null, it doesn't point to an object on the heap. This means there's no object on the heap on which the call to equals() can succeed.

Best of luck!

Sometimes you have things other than text inside a table cell that you'd like to be horizontally centered. In order to do this, first set up some css...

<style>
    div.centered {
        margin: auto;
        width: 100%;
        display: flex;
        justify-content: center;
    }
</style>

Then declare a div with class="centered" inside each table cell you want centered.

<td>
    <div class="centered">
        Anything: text, controls, etc... will be horizontally centered.
    </div>
</td>

I have faced same problem ... For the problem is like this, I am calling the PRC inside cpp program and my PRC taking 4 arguments but while calling I used only 1 arguments so this error came for me.

Begin Example_PRC(:1); End; // this cause the problem 
Begin Example_PRC(:1,:2,:3,:4); End; // this is the solution

For Perfect DateTime Match in SQL Server

SELECT ID FROM [Table Name] WHERE (DateLog between '2017-02-16 **00:00:00.000**' and '2017-12-16 **23:59:00.999**') ORDER BY DateLog DESC

The simplest way I found is:

$date   = new DateTime(); //this returns the current date time
$result = $date->format('Y-m-d-H-i-s');
echo $result . "<br>";
$krr    = explode('-', $result);
$result = implode("", $krr);
echo $result;

I hope it helps.

1. Html

   $('#save').click(function(event) {        
       var jenis = $('#jenis').val();
       var model = $('#model').val();
       var harga = $('#harga').val();
       var json = { "jenis" : jenis, "model" : model, "harga": harga};
       $.ajax({
           url: 'phone/save',
           data: JSON.stringify(json),
           type: "POST",           
           beforeSend: function(xhr) {
               xhr.setRequestHeader("Accept", "application/json");
               xhr.setRequestHeader("Content-Type", "application/json");
           },
           success: function(data){ 
               alert(data);
           }
       });
   
       event.preventDefault();
   });
   

   2. Controller

      @Controller
      @RequestMapping(value="/phone")
      public class phoneController {
      
          phoneDao pd=new phoneDao();
      
          @RequestMapping(value="/save",method=RequestMethod.POST)
          public @ResponseBody
          int save(@RequestBody Smartphones phone)
          {
              return pd.save(phone);
          }
      

   3. Dao

      public Integer save(Smartphones i) {
          int id = 0;
          Session session=HibernateUtil.getSessionFactory().openSession();
          Transaction trans=session.beginTransaction();
          try {
              session.save(i);   
              id=i.getId();
              trans.commit();
          }
          catch(HibernateException he){}
          return id;
      }
      

if ($string =~ m/something/) {
   # Do work
}

Where something is a regular expression.

One way to do this.
Works only on visibility changes that are made by css class change, but can be extended to watch for attribute changes too.

var observer = new MutationObserver(function(mutations) {
        var clone = $(mutations[0].target).clone();
        clone.removeClass();
                for(var i = 0; i < mutations.length; i++){
                    clone.addClass(mutations[i].oldValue);
        }
        $(document.body).append(clone);
        var cloneVisibility = $(clone).is(":visible");
        $(clone).remove();
        if (cloneVisibility != $(mutations[0].target).is(":visible")){
            var visibilityChangedEvent = document.createEvent('Event');
            visibilityChangedEvent.initEvent('visibilityChanged', true, true);
            mutations[0].target.dispatchEvent(visibilityChangedEvent);
        }
});

var targets = $('.ui-collapsible-content');
$.each(targets, function(i,target){
        target.addEventListener('visibilityChanged',VisbilityChanedEventHandler});
        target.addEventListener('DOMNodeRemovedFromDocument',VisbilityChanedEventHandler });
        observer.observe(target, { attributes: true, attributeFilter : ['class'], childList: false, attributeOldValue: true });
    });

function VisbilityChanedEventHandler(e){console.log('Kaboom babe'); console.log(e.target); }

?you should do these steps :

1. the mother Element should be positioned(for EXP you can give it position:relative;)
2. the child Element should have positioned "Absolute" and values should set like this: top:0;buttom:0;right:0;left:0; (to be middle vertically)
3. for the child Element you should set "margin : auto" (to be middle vertically)
4. the child and mother Element should have "height"and"width" value
5. for mother Element => text-align:center (to be middle horizontally)

??simply here is the summery of those 5 steps:

.mother_Element {
    position : relative;
    height : 20%;
    width : 5%;
    text-align : center
    }
.child_Element {
    height : 1.2 em;
    width : 5%;
    margin : auto;
    position : absolute;
    top:0;
    bottom:0;
    left:0;
    right:0;
    }

An example to make things concrete. If you have a selection thus:

<select onchange="" onblur="">
  <option>....
</select>

the onblur() is called when you navigate away. The onchange() is called when you select a different option from the selection - i.e. you change what it's currently selected as.

This image will make you understand easily about the basic differences between public, private, protected and default access modifiers. The default modifier takes place automatically when you don't declare ant access modifiers in your code.

I found a better solution on the Chrome product forums by a user called Gary. The original thread is here.

Navigate to C:\Windows\System32\GroupPolicy

Open each subdirectory there and change the *.pol files to *.sav, E.g. registry.pol becomes registry.sav.

Hit Windows-Key + R, type the following in the box and hit enter

reg delete HKEY_LOCAL_MACHINE\SOFTWARE\Google\Chrome

In the command promt window that opens type: Yes and press Enter.

Restart Google Chrome and check whether you can change the search engine.

There are three formats with a reasonable level of support: H.264 (MPEG-4 AVC), OGG Theora (VP3) and WebM (VP8). See the wiki linked by Sam for which browsers support which; you will typically need at least one of those plus Flash fallback.

Whilst most browsers won't touch AVI, there are some browser builds that expose all the multimedia capabilities of the underlying OS to <video>. These browser will indeed be able to play AVI, as long as they have matching codecs installed (AVI can contain about a million different video and audio formats). In particular Safari on OS X with QuickTime, or Konqi with GStreamer.

Personally I think this is an absolutely disastrous idea, as it exposes a very large codec codebase to the net, a codebase that was mostly not written to be resistant to network attacks. One of the worst drawbacks of media player plugins was the huge number of security holes they made available to every web page exploit. Let's not make this mistake again.

In stead of parsing JSON you can do like followng:

$.ajax({
  ..
  dataType: 'json' // using json, jquery will make parse for  you
});

To access a property of your JSON do following:

data[0].name;

data[0].address;

Why you need data[0] because data is an array, so to its content retrieve you need data[0] (first element), which gives you an object {"name":"myName" ,"address": "myAddress" }.

And to access property of an object rule is:

Object.property

or sometimes

Object["property"] // in some case

So you need

data[0].name and so on to get what you want.

If you not

set dataType: json then you need to parse them using $.parseJSON() and to retrieve data like above.

It may not be an easy problem. Determining how to map classes defined in Python into types in Java will be a big challange because of differences in each of type binding time. (duck typing vs. compile time binding).

First of all, you should add templates/admin/base_site.html to your project. This file can safely be overwritten since it’s a file that the Django devs have intended for the exact purpose of customizing your admin site a bit. Here’s an example of what to put in the file:

{% extends "admin/base.html" %}
{% load i18n %}

{% block title %}{{ title }} | {% trans 'Some Organisation' %}{% endblock %}

{% block branding %}
<style type="text/css">
  #header
  {
    /* your style here */
  }
</style>
<h1 id="site-name">{% trans 'Organisation Website' %}</h1>
{% endblock %}

{% block nav-global %}{% endblock %}

This is common practice. But I noticed after this that I was still left with an annoying “Site Administration” on the main admin index page. And this string was not inside any of the templates, but rather set inside the admin view. Luckily it’s quite easy to change. Assuming your language is set to English, run the following commands from your project directory:

$ mkdir locale
$ ./manage.py makemessages -l en

Now open up the file locale/en/LC_MESSAGES/django.po and add two lines after the header information (the last two lines of this example)

"Project-Id-Version: PACKAGE VERSION\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2010-04-03 03:25+0200\n"
"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
"Language-Team: LANGUAGE <[email protected]>\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"

msgid "Site administration"
msgstr "Main administration index"

After this, remember to run the following command and reload your project’s server:

$ ./manage.py compilemessages

source: http://overtag.dk/wordpress/2010/04/changing-the-django-admin-site-title/

A string in Javascript is already a character array.

You can simply access any character in the array as you would any other array.

var s = "overpopulation";
alert(s[0]) // alerts o.

UPDATE

As is pointed out in the comments below, the above method for accessing a character in a string is part of ECMAScript 5 which certain browsers may not conform to.

An alternative method you can use is charAt(index).

var s = "overpopulation";
    alert(s.charAt(0)) // alerts o.

There's a really good paper by Microsoft Research called To Blob or Not To Blob.

Their conclusion after a large number of performance tests and analysis is this:

• if your pictures or document are typically below 256K in size, storing them in a database VARBINARY column is more efficient

• if your pictures or document are typically over 1 MB in size, storing them in the filesystem is more efficient (and with SQL Server 2008's FILESTREAM attribute, they're still under transactional control and part of the database)

• in between those two, it's a bit of a toss-up depending on your use

If you decide to put your pictures into a SQL Server table, I would strongly recommend using a separate table for storing those pictures - do not store the employee photo in the employee table - keep them in a separate table. That way, the Employee table can stay lean and mean and very efficient, assuming you don't always need to select the employee photo, too, as part of your queries.

For filegroups, check out Files and Filegroup Architecture for an intro. Basically, you would either create your database with a separate filegroup for large data structures right from the beginning, or add an additional filegroup later. Let's call it "LARGE_DATA".

Now, whenever you have a new table to create which needs to store VARCHAR(MAX) or VARBINARY(MAX) columns, you can specify this file group for the large data:

 CREATE TABLE dbo.YourTable
     (....... define the fields here ......)
     ON Data                   -- the basic "Data" filegroup for the regular data
     TEXTIMAGE_ON LARGE_DATA   -- the filegroup for large chunks of data

Check out the MSDN intro on filegroups, and play around with it!

I just wanted to add to Alper's answer what I had to do to get this stuff working:

On Mac, you'll need brew install coreutils, so we can use gdate. Otherwise on Linux, it's just date. And this function will help you time commands without having to create temporary files or anything:

function timeit() {
    start=`gdate +%s%N`
    bash -c $1
    end=`gdate +%s%N`
    runtime=$(((end-start)/1000000000.0))
    echo " seconds"
}

And you can use it with a string:

timeit 'tsc --noEmit'

You can use a CROSS JOIN:

SELECT *
FROM (  SELECT SUM(Fdays) AS fDaysSum 
        FROM tblFieldDays 
        WHERE tblFieldDays.NameCode=35 
        AND tblFieldDays.WeekEnding=1) A -- use you real query here
CROSS JOIN (SELECT SUM(CHdays) AS hrsSum 
            FROM tblChargeHours 
            WHERE tblChargeHours.NameCode=35 
            AND tblChargeHours.WeekEnding=1) B -- use you real query here

You can give multiple values to box-shadow property
eg

-moz-box-shadow: 0px 10px 12px 0px #000,
                    0px -10px 12px 0px #000;
-webkit-box-shadow: 0px 10px 12px 0px #000,
                    0px -10px 12px 0px #000;
box-shadow: 0px 10px 12px 0px #000,
            0px -10px 12px 0px #000;

it is drop shadow to left and right only, you can adapt it to your requirements

I just had this same issue. It turns out for me, mysql was already installed and working. I just didn't know how to check.

$ ps aux | grep mysql

This will show you if mysql is already running. If it is it should return something like this:

mysql    24294  0.1  1.3 550012 52784 ?        Ssl  15:16   0:06        /usr/sbin/mysqld
gwang    27451  0.0  0.0  15940   924 pts/3    S+   16:34   0:00 grep --color=auto mysql

You can achive this with Regex and Replace or with just trimming.

Regex example:

if ($('input').val().replace(/[\s]/, '') == '') {
    alert('Input is not filled!');
}

With this replace() function you replace white spaces with nothing (removing white spaces).

Trimming Example:

if ($('input').val().trim() == '') {
    alert('Input is not filled!');
}

trim() function removes the leading and trailing white space and line terminator characters from a string.

I think you can use db.collection.distinct(fields,query)

You will be able to get the distinct values in your case for NetworkID.

It should be something like this :

Db.collection.distinct('NetworkID')

For recent hadoop versions (I'm using 2.7.1)

The start\stop scripts are located in the sbin folder. The scripts are:

• ./sbin/start-dfs.sh
• ./sbin/stop-dfs.sh
• ./sbin/start-yarn.sh
• ./sbin/stop-yarn.sh

I didn't have to do anything with yarn though to get the NameNodeServer instance running.

Now my mistake was that I didn't format the NameNodeServer HDFS.

bin/hdfs namenode -format

I'm not quite sure what that does at the moment but it obviously prepares the space on which the NameNodeServer will use to operate.

clearfix should contain the floating elements but in your html you have added clearfix only after floating right that is your pull-right so you should do like this:

<div class="clearfix">
  <div id="sidebar">
    <ul>
      <li>A</li>
      <li>A</li>
      <li>C</li>
      <li>D</li>
      <li>E</li>
      <li>F</li>
      <li>...</li>
      <li>Z</li>
    </ul>
  </div>
  <div id="main">
    <div>
      <div class="pull-right">
        <a>RIGHT</a>
      </div>
    </div>
  <div>MOVED BELOW Z</div>
</div>

see this demo

Happy to know you solved the problem by setting overflow properties. However this is also good idea to clear the float. Where you have floated your elements you could add overflow: hidden; as you have done in your main.

If you are using ASP.NET Core MVC project. This error message can be shown then you have the correct cshtml file in your Views folder but the action is missing in your controller.

Adding the missing action to the controller will fix it.

i have same problem, and i try this:

1. log In As Administrator on your PC
2. log In SQL Server Management Studio as "Windows Aunthication"
3. Click Security > Login > choose your login where you want to create DB > right click then Properties > click server roles > then checklist 'dbcreator'.
4. Close and log in back with your login account.

This worked for me, and hope will help you.

*sorry for my bad english

Alternative way for "insufficient string length or null" save:

String numbers = defaultValue();
try{
   numbers = word.substring(word.length() - 3);
} catch(Exception e) {
   System.out.println("Insufficient String length");
}

To access the elements in the array, use array notation: $product['prodname']

$product->prodname is object notation, which can only be used to access object attributes and methods.

Think of it like this, every time you see a arrow, you replace it with function.
function parameters are defined before the arrow.
So in your example:

field => // function(field){}
e => { e.preventDefault(); } // function(e){e.preventDefault();}

and then together:

function (field) { 
    return function (e) { 
        e.preventDefault(); 
    };
}

From the docs:

// Basic syntax:
(param1, param2, paramN) => { statements }
(param1, param2, paramN) => expression
   // equivalent to:  => { return expression; }

// Parentheses are optional when there's only one argument:
singleParam => { statements }
singleParam => expression

This is a mistake:

m.check(side);

That code has to go inside a function. Your class definition can only contain declarations and functions.

Classes don't "run", they provide a blueprint for how to make an object.

The line Message m; means that an Orderbook will contain Message called m, if you later create an Orderbook.

Use destructuring (new in ES6)

There is great documentation by Mozila as well as a fantastic blog post that explains the syntax better than I can.

To Answer Your Question

var emptyObj = {};
const { nonExistingAttribute = defaultValue } = emptyObj;
console.log(nonExistingAttribute); // defaultValue

Going Further

Can I rename this variable? Sure!

const { nonExistingAttribute: coolerName = 15} = emptyObj;
console.log(coolerName); // 15

What about nested data? Bring it on!

var nestedData = {
    name: 'Awesome Programmer',
    languages: [
        {
            name: 'javascript',
            proficiency: 4,
        }
    ],
    country: 'Canada',
};

var {name: realName, languages: [{name: languageName}]} = nestedData ;

console.log(realName); // Awesome Programmer
console.log(languageName); // javascript

Often times I think it is just good practice to keep larger databases inside a database (e.g. Postgres). I don't use anything too much larger than (nrow * ncol) ncell = 10M, which is pretty small; but I often find I want R to create and hold memory intensive graphs only while I query from multiple databases. In the future of 32 GB laptops, some of these types of memory problems will disappear. But the allure of using a database to hold the data and then using R's memory for the resulting query results and graphs still may be useful. Some advantages are:

(1) The data stays loaded in your database. You simply reconnect in pgadmin to the databases you want when you turn your laptop back on.

(2) It is true R can do many more nifty statistical and graphing operations than SQL. But I think SQL is better designed to query large amounts of data than R.

# Looking at Voter/Registrant Age by Decade

library(RPostgreSQL);library(lattice)

con <- dbConnect(PostgreSQL(), user= "postgres", password="password",
                 port="2345", host="localhost", dbname="WC2014_08_01_2014")

Decade_BD_1980_42 <- dbGetQuery(con,"Select PrecinctID,Count(PrecinctID),extract(DECADE from Birthdate) from voterdb where extract(DECADE from Birthdate)::numeric > 198 and PrecinctID in (Select * from LD42) Group By PrecinctID,date_part Order by Count DESC;")

Decade_RD_1980_42 <- dbGetQuery(con,"Select PrecinctID,Count(PrecinctID),extract(DECADE from RegistrationDate) from voterdb where extract(DECADE from RegistrationDate)::numeric > 198 and PrecinctID in (Select * from LD42) Group By PrecinctID,date_part Order by Count DESC;")

with(Decade_BD_1980_42,(barchart(~count | as.factor(precinctid))));
mtext("42LD Birthdays later than 1980 by Precinct",side=1,line=0)

with(Decade_RD_1980_42,(barchart(~count | as.factor(precinctid))));
mtext("42LD Registration Dates later than 1980 by Precinct",side=1,line=0)

You might need a bit more background on what a Materialized View actually is. In Oracle these are an object that consists of a number of elements when you try to build it elsewhere.

An MVIEW is essentially a snapshot of data from another source. Unlike a view the data is not found when you query the view it is stored locally in a form of table. The MVIEW is refreshed using a background procedure that kicks off at regular intervals or when the source data changes. Oracle allows for full or partial refreshes.

In SQL Server, I would use the following to create a basic MVIEW to (complete) refresh regularly.

First, a view. This should be easy for most since views are quite common in any database Next, a table. This should be identical to the view in columns and data. This will store a snapshot of the view data. Then, a procedure that truncates the table, and reloads it based on the current data in the view. Finally, a job that triggers the procedure to start it's work.

Everything else is experimentation.

According to the answer here, quotes in values need to be escaped. You can do that with \"

So just repalce the quote in your values

msget = msget.replace("\"", "\\\"");

Oracle will try to recompile invalid objects as they are referred to. Here the trigger is invalid, and every time you try to insert a row it will try to recompile the trigger, and fail, which leads to the ORA-04098 error.

You can select * from user_errors where type = 'TRIGGER' and name = 'NEWALERT' to see what error(s) the trigger actually gets and why it won't compile. In this case it appears you're missing a semicolon at the end of the insert line:

INSERT INTO Users (userID, firstName, lastName, password)
VALUES ('how', 'im', 'testing', 'this trigger')

So make it:

CREATE OR REPLACE TRIGGER newAlert
AFTER INSERT OR UPDATE ON Alerts
  BEGIN
        INSERT INTO Users (userID, firstName, lastName, password)
        VALUES ('how', 'im', 'testing', 'this trigger');
  END;           
/

If you get a compilation warning when you do that you can do show errors if you're in SQL*Plus or SQL Developer, or query user_errors again.

Of course, this assumes your Users tables does have those column names, and they are all varchar2... but presumably you'll be doing something more interesting with the trigger really.

You can also try this approach save the keys and values in different list and then use dict method

data=['test1', '1', 'test2', '2', 'test3', '3', 'test4', '4']

keys=[]
values=[]
for i,j in enumerate(data):
    if i%2==0:
        keys.append(j)
    else:
        values.append(j)

print(dict(zip(keys,values)))

output:

{'test3': '3', 'test1': '1', 'test2': '2', 'test4': '4'}

You could specify the dtype directly when constructing the DataFrame:

>>> df = pd.DataFrame(index=range(0,4),columns=['A'], dtype='float')
>>> df.dtypes
A    float64
dtype: object

Specifying the dtype forces Pandas to try creating the DataFrame with that type, rather than trying to infer it.

This is intended behavior.

When you make an HTTP request, the server normally returns code 200 OK. If you set If-Modified-Since, the server may return 304 Not modified (and the response will not have the content). This is supposed to be your cue that the page has not been modified.

The authors of the class have foolishly decided that 304 should be treated as an error and throw an exception. Now you have to clean up after them by catching the exception every time you try to use If-Modified-Since.

You can also use @font-face to link to the URLs. http://www.css3.info/preview/web-fonts-with-font-face/

Does the CMS support iframes? You might be able to throw an iframe into the top of your content, too. This would probably be slower - better to include it in your CSS.

Use this:

static int RandomNumber(int min, int max)
{
    Random random = new Random(); return random.Next(min, max);

}

This is example for you to modify and use in your application.

Another great solution to debug the Network calls before redirecting to other pages is to select the beforeunload event break point

This way you assure to break the flow right before it redirecting it to another page, this way all network calls, network data and console logs are still there.

This solution is best when you want to check what is the response of the calls

P.S: You can also use XHR break points if you want to stop right before a specific call or any call (see image example)

If you are on mac try this :

cd Users/<Your name> 

Make sure that you are on the right path by looking for .gradle with

ls -la

then run that to delete .gradle

rm -rf .gradle

This will remove everything. Then launch your commande again and it will work !

Above answers are correct, but if run script in other folder, there will be some problem.

For example, the a.sh and b.sh are in same folder, a include b with . ./b.sh to include.

When run script out of the folder, for example with xx/xx/xx/a.sh, file b.sh will not found: ./b.sh: No such file or directory.

I use

. $(dirname "$0")/b.sh

Changing the IDENTITY property is really a metadata only change. But to update the metadata directly requires starting the instance in single user mode and messing around with some columns in sys.syscolpars and is undocumented/unsupported and not something I would recommend or will give any additional details about.

For people coming across this answer on SQL Server 2012+ by far the easiest way of achieving this result of an auto incrementing column would be to create a SEQUENCE object and set the next value for seq as the column default.

Alternatively, or for previous versions (from 2005 onwards), the workaround posted on this connect item shows a completely supported way of doing this without any need for size of data operations using ALTER TABLE...SWITCH. Also blogged about on MSDN here. Though the code to achieve this is not very simple and there are restrictions - such as the table being changed can't be the target of a foreign key constraint.

Example code.

Set up test table with no identity column.

CREATE TABLE dbo.tblFoo 
(
bar INT PRIMARY KEY,
filler CHAR(8000),
filler2 CHAR(49)
)


INSERT INTO dbo.tblFoo (bar)
SELECT TOP (10000) ROW_NUMBER() OVER (ORDER BY (SELECT 0))
FROM master..spt_values v1, master..spt_values v2

Alter it to have an identity column (more or less instant).

BEGIN TRY;
    BEGIN TRANSACTION;

    /*Using DBCC CHECKIDENT('dbo.tblFoo') is slow so use dynamic SQL to
      set the correct seed in the table definition instead*/
    DECLARE @TableScript nvarchar(max)
    SELECT @TableScript = 
    '
    CREATE TABLE dbo.Destination(
        bar INT IDENTITY(' + 
                     CAST(ISNULL(MAX(bar),0)+1 AS VARCHAR) + ',1)  PRIMARY KEY,
        filler CHAR(8000),
        filler2 CHAR(49)
        )

        ALTER TABLE dbo.tblFoo SWITCH TO dbo.Destination;
    '       
    FROM dbo.tblFoo
    WITH (TABLOCKX,HOLDLOCK)

    EXEC(@TableScript)


    DROP TABLE dbo.tblFoo;

    EXECUTE sp_rename N'dbo.Destination', N'tblFoo', 'OBJECT';


    COMMIT TRANSACTION;
END TRY
BEGIN CATCH
    IF XACT_STATE() <> 0 ROLLBACK TRANSACTION;
    PRINT ERROR_MESSAGE();
END CATCH;

Test the result.

INSERT INTO dbo.tblFoo (filler,filler2) 
OUTPUT inserted.*
VALUES ('foo','bar')

Gives

bar         filler    filler2
----------- --------- ---------
10001       foo       bar      

Clean up

DROP TABLE dbo.tblFoo

Add following lines within the body tags.

<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
  <script src="https://code.jquery.com/jquery.js"></script>
  <!-- Include all compiled plugins (below), or include individual files 
        as needed -->
  <script src="js/bootstrap.min.js"></script>

import threading

def printit():
  threading.Timer(5.0, printit).start()
  print "Hello, World!"

printit()

# continue with the rest of your code

https://docs.python.org/3/library/threading.html#timer-objects

The STAThreadAttribute is essentially a requirement for the Windows message pump to communicate with COM components. Although core Windows Forms does not use COM, many components of the OS such as system dialogs do use this technology.

MSDN explains the reason in slightly more detail:

STAThreadAttribute indicates that the COM threading model for the application is single-threaded apartment. This attribute must be present on the entry point of any application that uses Windows Forms; if it is omitted, the Windows components might not work correctly. If the attribute is not present, the application uses the multithreaded apartment model, which is not supported for Windows Forms.

This blog post (Why is STAThread required?) also explains the requirement quite well. If you want a more in-depth view as to how the threading model works at the CLR level, see this MSDN Magazine article from June 2004 (Archived, Apr. 2009).

Of course! jQuery is just a library that utilizes javascript after all.

You can use document.getElementById to get the element in question, then change its height accordingly, through element.style.height.

elementToChange = document.getElementById('collapseableEl');
elementToChange.style.height = '100%';

Wrap that up in a neat little function that caters for toggling back and forth and you have yourself a solution.

Alternatively, consider The Glass Pane, discussed in the article How to Use Root Panes. You could draw your "Feature" content in the glass pane's paintComponent() method.

Addendum: Working with the GlassPaneDemo, I added an image:

//Set up the content pane, where the "main GUI" lives.
frame.add(changeButton, BorderLayout.SOUTH);
frame.add(new JLabel(new ImageIcon("img.jpg")), BorderLayout.CENTER);

and altered the glass pane's paintComponent() method:

protected void paintComponent(Graphics g) {
    if (point != null) {
        Graphics2D g2d = (Graphics2D) g;
        g2d.setRenderingHint(
            RenderingHints.KEY_ANTIALIASING,
            RenderingHints.VALUE_ANTIALIAS_ON);
        g2d.setComposite(AlphaComposite.getInstance(
            AlphaComposite.SRC_OVER, 0.3f));
        g2d.setColor(Color.yellow);
        g2d.fillOval(point.x, point.y, 120, 60);
    }
}

As noted here, Swing components must honor the opaque property; in this variation, the ImageIcon completely fills the BorderLayout.CENTER of the frame's default layout.

use the fully qualified name instead of importing the class.

e.g.

//import java.util.Date; //delete this
//import my.own.Date;

class Test{

   public static void main(String [] args){

      // I want to choose my.own.Date here. How?
      my.own.Date myDate = new my.own.Date();

      // I want to choose util.Date here. How ?
      java.util.Date javaDate = new java.util.Date();
   }
}

Pass java.text.Collator.getInstance() to Collections.sort method ; it will sort Alphabetically while ignoring case sensitive.

        ArrayList<String> myArray = new ArrayList<String>();
        myArray.add("zzz");
        myArray.add("xxx");
        myArray.add("Aaa");
        myArray.add("bb");
        myArray.add("BB");
        Collections.sort(myArray,Collator.getInstance());

Factory Method patter: BeanFactory for creating instance of an object Singleton : instance type can be singleton for a context Prototype : instance type can be prototype. Builder pattern: you can also define a method in a class who will be responsible for creating complex instance.

i want to mention some important point to bare in mind while implementing class binding.

    [ngClass] = "{
    'badge-secondary': somevariable  === value1,
    'badge-danger': somevariable  === value1,
    'badge-warning': somevariable  === value1,
    'badge-warning': somevariable  === value1,
    'badge-success': somevariable  === value1 }" 

class here is not binding correctly because one condition is to be met, whereas you have two identical classes 'badge-warning' that may have two different condition. To correct this

 [ngClass] = "{
    'badge-secondary': somevariable === value1,
    'badge-danger': somevariable  === value1,
    'badge-warning': somevariable  === value1 || somevariable  === value1, 
    'badge-success': somevariable  === value1 }" 

Use the GD library or ImageMagick. I googled 'PHP GD merge images' and got several articles on doing this. In the past what I've done is create a large blank image, and then used imagecopymerge() to paste those images into my original blank one. Check out the articles on google you'll find some source code you can start using right away.

We can use rename_with to rename columns with a function (stringr functions, for example).

Consider the following data df_1:

df_1 <- data.frame(
  x = replicate(n = 3, expr = rnorm(n = 3, mean = 10, sd = 1)), 
  y = sample(x = 1:2, size = 10, replace = TRUE)
)

names(df_1)

#[1] "x.1" "x.2" "x.3" "y" 

Rename all variables with dplyr::everything():

library(tidyverse)

df_1 %>% 
  rename_with(.data = ., .cols = everything(.), 
              .fn = str_replace, pattern = '.*', 
              replacement = str_c('var', seq_along(.), sep = '_')) %>% 
  names()

#[1] "var_1" "var_2" "var_3" "var_4"

Rename by name particle with some dplyr verbs (starts_with, ends_with, contains, matches, ...).

Example with . (x variables):

df_1 %>% 
  rename_with(.data = ., .cols = contains('.'), 
              .fn = str_replace, pattern = '.*', 
              replacement = str_c('var', seq_along(.), sep = '_')) %>% 
  names()

#[1] "var_1" "var_2" "var_3" "y"

Rename by class with many functions of class test, like is.integer, is.numeric, is.factor...

Example with is.integer (y):

df_1 %>% 
  rename_with(.data = ., .cols = is.integer, 
              .fn = str_replace, pattern = '.*', 
              replacement = str_c('var', seq_along(.), sep = '_')) %>% 
  names()

#[1] "x.1"   "x.2"   "x.3"   "var_1"

The warning:

Warning messages: 1: In stri_replace_first_regex(string, pattern, fix_replacement(replacement), : longer object length is not a multiple of shorter object length 2: In names[cols] <- .fn(names[cols], ...) : number of items to replace is not a multiple of replacement length

It is not relevant, as it is just an inconsistency of seq_along(.) with the replace function.

You can limit mongod process usage using cgroups on Linux.

Using cgroups, our task can be accomplished in a few easy steps.

1. Create control group:

   cgcreate -g memory:DBLimitedGroup 
   

   (make sure that cgroups binaries installed on your system, consult your favorite Linux distribution manual for how to do that)

2. Specify how much memory will be available for this group:

   echo 16G > /sys/fs/cgroup/memory/DBLimitedGroup/memory.limit_in_bytes
   

   This command limits memory to 16G (good thing this limits the memory for both malloc allocations and OS cache)

3. Now, it will be a good idea to drop pages already stayed in cache:

   sync; echo 3 > /proc/sys/vm/drop_caches
   

4. And finally assign a server to created control group:

   cgclassify -g memory:DBLimitedGroup \`pidof mongod\`
   

   This will assign a running mongod process to a group limited by only 16GB memory.

source: Using Cgroups to Limit MySQL and MongoDB memory usage

The most important part is the concepts. Once you understand how the building blocks work, differences in syntax amount to little more than mild dialects. A layer on top of your regular expression engine's syntax is the syntax of the programming language you're using. Languages such as Perl remove most of this complication, but you'll have to keep in mind other considerations if you're using regular expressions in a C program.

If you think of regular expressions as building blocks that you can mix and match as you please, it helps you learn how to write and debug your own patterns but also how to understand patterns written by others.

Start simple

Conceptually, the simplest regular expressions are literal characters. The pattern N matches the character 'N'.

Regular expressions next to each other match sequences. For example, the pattern Nick matches the sequence 'N' followed by 'i' followed by 'c' followed by 'k'.

If you've ever used grep on Unix—even if only to search for ordinary looking strings—you've already been using regular expressions! (The re in grep refers to regular expressions.)

Order from the menu

Adding just a little complexity, you can match either 'Nick' or 'nick' with the pattern [Nn]ick. The part in square brackets is a character class, which means it matches exactly one of the enclosed characters. You can also use ranges in character classes, so [a-c] matches either 'a' or 'b' or 'c'.

The pattern . is special: rather than matching a literal dot only, it matches any character^†. It's the same conceptually as the really big character class [-.?+%$A-Za-z0-9...].

Think of character classes as menus: pick just one.

Helpful shortcuts

Using . can save you lots of typing, and there are other shortcuts for common patterns. Say you want to match a digit: one way to write that is [0-9]. Digits are a frequent match target, so you could instead use the shortcut \d. Others are \s (whitespace) and \w (word characters: alphanumerics or underscore).

The uppercased variants are their complements, so \S matches any non-whitespace character, for example.

Once is not enough

From there, you can repeat parts of your pattern with quantifiers. For example, the pattern ab?c matches 'abc' or 'ac' because the ? quantifier makes the subpattern it modifies optional. Other quantifiers are

• * (zero or more times)
• + (one or more times)
• {n} (exactly n times)
• {n,} (at least n times)
• {n,m} (at least n times but no more than m times)

Putting some of these blocks together, the pattern [Nn]*ick matches all of

• ick
• Nick
• nick
• Nnick
• nNick
• nnick
• (and so on)

The first match demonstrates an important lesson: * always succeeds! Any pattern can match zero times.

A few other useful examples:

• [0-9]+ (and its equivalent \d+) matches any non-negative integer
• \d{4}-\d{2}-\d{2} matches dates formatted like 2019-01-01

Grouping

A quantifier modifies the pattern to its immediate left. You might expect 0abc+0 to match '0abc0', '0abcabc0', and so forth, but the pattern immediately to the left of the plus quantifier is c. This means 0abc+0 matches '0abc0', '0abcc0', '0abccc0', and so on.

To match one or more sequences of 'abc' with zeros on the ends, use 0(abc)+0. The parentheses denote a subpattern that can be quantified as a unit. It's also common for regular expression engines to save or "capture" the portion of the input text that matches a parenthesized group. Extracting bits this way is much more flexible and less error-prone than counting indices and substr.

Alternation

Earlier, we saw one way to match either 'Nick' or 'nick'. Another is with alternation as in Nick|nick. Remember that alternation includes everything to its left and everything to its right. Use grouping parentheses to limit the scope of |, e.g., (Nick|nick).

For another example, you could equivalently write [a-c] as a|b|c, but this is likely to be suboptimal because many implementations assume alternatives will have lengths greater than 1.

Escaping

Although some characters match themselves, others have special meanings. The pattern \d+ doesn't match backslash followed by lowercase D followed by a plus sign: to get that, we'd use \\d\+. A backslash removes the special meaning from the following character.

Greediness

Regular expression quantifiers are greedy. This means they match as much text as they possibly can while allowing the entire pattern to match successfully.

For example, say the input is

"Hello," she said, "How are you?"

You might expect ".+" to match only 'Hello,' and will then be surprised when you see that it matched from 'Hello' all the way through 'you?'.

To switch from greedy to what you might think of as cautious, add an extra ? to the quantifier. Now you understand how \((.+?)\), the example from your question works. It matches the sequence of a literal left-parenthesis, followed by one or more characters, and terminated by a right-parenthesis.

If your input is '(123) (456)', then the first capture will be '123'. Non-greedy quantifiers want to allow the rest of the pattern to start matching as soon as possible.

(As to your confusion, I don't know of any regular-expression dialect where ((.+?)) would do the same thing. I suspect something got lost in transmission somewhere along the way.)

Anchors

Use the special pattern ^ to match only at the beginning of your input and $ to match only at the end. Making "bookends" with your patterns where you say, "I know what's at the front and back, but give me everything between" is a useful technique.

Say you want to match comments of the form

-- This is a comment --

you'd write ^--\s+(.+)\s+--$.

Build your own

Regular expressions are recursive, so now that you understand these basic rules, you can combine them however you like.

Tools for writing and debugging regexes:

• RegExr (for JavaScript)
• Perl: YAPE: Regex Explain
• Regex Coach (engine backed by CL-PPCRE)
• RegexPal (for JavaScript)
• Regular Expressions Online Tester
• Regex Buddy
• Regex 101 (for PCRE, JavaScript, Python, Golang)
• Visual RegExp
• Expresso (for .NET)
• Rubular (for Ruby)
• Regular Expression Library (Predefined Regexes for common scenarios)
• Txt2RE
• Regex Tester (for JavaScript)
• Regex Storm (for .NET)
• Debuggex (visual regex tester and helper)

Books

• Mastering Regular Expressions, the 2nd Edition, and the 3rd edition.
• Regular Expressions Cheat Sheet
• Regex Cookbook
• Teach Yourself Regular Expressions

Free resources

• RegexOne - Learn with simple, interactive exercises.
• Regular Expressions - Everything you should know (PDF Series)
• Regex Syntax Summary
• How Regexes Work

Footnote

†: The statement above that . matches any character is a simplification for pedagogical purposes that is not strictly true. Dot matches any character except newline, "\n", but in practice you rarely expect a pattern such as .+ to cross a newline boundary. Perl regexes have a /s switch and Java Pattern.DOTALL, for example, to make . match any character at all. For languages that don't have such a feature, you can use something like [\s\S] to match "any whitespace or any non-whitespace", in other words anything.

int power (int i, int ow) // works only for ow >= 1
{ // but does not require <cmath> library!=)
    if (ow > 1)
    {
         i = i * power (i, ow - 1);
    }
    return i;
}

cout << power(6,7); //you can enter variables here

Although this question specifically asks about IntelliJ, this was the first result I received on Google, so I believe that many Eclipse users may have the same problem using Buildship.

You can set your Gradle JVM in Eclipse by going to Gradle Tasks (in the default view, down at the bottom near the console), right-clicking on the specific task you are trying to run, clicking "Open Gradle Run Configuration..." and moving to the Java Home tab and picking the correct JVM for your project.

I prefer the following command to keep track of the changes in the number of files in a directory.

watch -d -n 0.01 'ls | wc -l'

The command will keeps a window open to keep track of the number of files that are in the directory with a refresh rate of 0.1 seconds.

To use getSingleResult on a TypedQuery you can use

query.setFirstResult(0);
query.setMaxResults(1);
result = query.getSingleResult();

I often use something similar to this:

import os
DATA_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), 'datadir'))

# if you have more paths to set, you might want to shorten this as
here = lambda x: os.path.abspath(os.path.join(os.path.dirname(__file__), x))
DATA_DIR = here('datadir') 

pathjoin = os.path.join
# ...
# later in script
for fn in os.listdir(DATA_DIR):
    f = open(pathjoin(DATA_DIR, fn))
    # ...

The variable

__file__

holds the file name of the script you write that code in, so you can make paths relative to script, but still written with absolute paths. It works quite well for several reasons:

• path is absolute, but still relative
• the project can still be deployed in a relative container

But you need to watch for platform compatibility - Windows' os.pathsep is different than UNIX.

I've mixed and matched from different schemes I've seen and based on the tooling I'm using.
So my completed branch name would be:

name/feature/issue-tracker-number/short-description

which would translate to:

mike/blogs/RSSI-12/logo-fix

The parts are separated by forward slashes because those get interpreted as folders in SourceTree for easy organization. We use Jira for our issue tracking so including the number makes it easier to look up in the system. Including that number also makes it searchable when trying to find that issue inside Github when trying to submit a pull request.

If you want to save a file to a particular DIRECTORY and FILENAME here is some simple example. It also checks to see if the directory has or has not been created.

import os.path
directory = './html/'
filename = "file.html"
file_path = os.path.join(directory, filename)
if not os.path.isdir(directory):
    os.mkdir(directory)
file = open(file_path, "w")
file.write(html)
file.close()

Hope this helps you!

This is the easiest way I found

  background: black;
  opacity: 0.5;

An N-tier application is an application which has more than three components involved. What are those components?

• Cache
• Message queues for asynchronous behaviour
• Load balancers
• Search servers for searching through massive amounts of data
• Components involved in processing massive amounts of data
• Components running heterogeneous tech commonly known as web services etc.

All the social applications like Instagram, Facebook, large scale industry services like Uber, Airbnb, online massive multiplayer games like Pokemon Go, applications with fancy features are n-tier applications.

Since JSF 2.3 all the bean scopes defined in package javax.faces.bean package have been deprecated to align the scopes with CDI. Moreover they're only applicable if your bean is using @ManagedBean annotation. If you are using JSF versions below 2.3 refer to the legacy answer at the end.

From JSF 2.3 here are scopes that can be used on JSF Backing Beans:

1. @javax.enterprise.context.ApplicationScoped: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. This is useful when you have data for whole application.

2. @javax.enterprise.context.SessionScoped: The session scope persists from the time that a session is established until session termination. The session context is shared between all requests that occur in the same HTTP session. This is useful when you wont to save data for a specific client for a particular session.

3. @javax.enterprise.context.ConversationScoped: The conversation scope persists as log as the bean lives. The scope provides 2 methods: Conversation.begin() and Conversation.end(). These methods should called explicitly, either to start or end the life of a bean.

4. @javax.enterprise.context.RequestScoped: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.

5. @javax.faces.flow.FlowScoped: The Flow scope persists as long as the Flow lives. A flow may be defined as a contained set of pages (or views) that define a unit of work. Flow scoped been is active as long as user navigates with in the Flow.

6. @javax.faces.view.ViewScoped: A bean in view scope persists while the same JSF page is redisplayed. As soon as the user navigates to a different page, the bean goes out of scope.

The following legacy answer applies JSF version before 2.3

As of JSF 2.x there are 4 Bean Scopes:

• @SessionScoped
• @RequestScoped
• @ApplicationScoped
• @ViewScoped

Session Scope: The session scope persists from the time that a session is established until session termination. A session terminates if the web application invokes the invalidate method on the HttpSession object, or if it times out.

RequestScope: The request scope is short-lived. It starts when an HTTP request is submitted and ends after the response is sent back to the client. If you place a managed bean into request scope, a new instance is created with each request. It is worth considering request scope if you are concerned about the cost of session scope storage.

ApplicationScope: The application scope persists for the entire duration of the web application. That scope is shared among all requests and all sessions. You place managed beans into the application scope if a single bean should be shared among all instances of a web application. The bean is constructed when it is first requested by any user of the application, and it stays alive until the web application is removed from the application server.

ViewScope: View scope was added in JSF 2.0. A bean in view scope persists while the same JSF page is redisplayed. (The JSF specification uses the term view for a JSF page.) As soon as the user navigates to a different page, the bean goes out of scope.

Choose the scope you based on your requirement.

Source: Core Java Server Faces 3rd Edition by David Geary & Cay Horstmann [Page no. 51 - 54]

It seems to mean your node server's connection to your MongoDB instance was interrupted while it was trying to write to it.

Take a look at the Mongo source code that generates that error

Mongos.prototype.insert = function(ns, ops, options, callback) {
    if(typeof options == 'function') callback = options, options = {};
    if(this.s.state == DESTROYED) return callback(new MongoError(f('topology was destroyed')));
    // Topology is not connected, save the call in the provided store to be
    // Executed at some point when the handler deems it's reconnected
    if(!this.isConnected() && this.s.disconnectHandler != null) {
      callback = bindToCurrentDomain(callback);
      return this.s.disconnectHandler.add('insert', ns, ops, options, callback);
    }

    executeWriteOperation(this.s, 'insert', ns, ops, options, callback);
}

This does not appear to be related to the Sails issue cited in the comments, as no upgrades were installed to precipitate the crash or the "fix"

Add a specific class for all the links :

html :

<a class="class1 class2 noDecoration"> text </a>

in css :

.noDecoration {
  text-decoration: none;
}

doctormad's solution is not correct. try this:

$var = '1a';
if ((int) $var == $var) {
    var_dump("$var is an integer, really?");
}

this prints

1a is an integer, really?"

use filter_var() with FILTER_VALIDATE_INT argument

$data = Array('0', '1', '1a', '1.1', '1e', '0x24', PHP_INT_MAX+1);
array_walk($data, function ($num){
$is_int = filter_var($num, FILTER_VALIDATE_INT);
if ($is_int === false)
var_dump("$num is not int");
});

this prints

1a is not int 
1.1 is not int
1e is not int
0x24 is not int
9.2233720368548E+18 is not int

Could find nothing simpler and better than this solution. Also see the doc.

@register.filter
def dictitem(dictionary, key):
    return dictionary.get(key)

But there's a problem (also discussed here) that the returned item is an object and I need to reference a field of this object. Expressions like {{ (schema_dict|dictitem:schema_code).name }} are not supported, so the only solution I found was:

{% with schema=schema_dict|dictitem:schema_code %}
    <p>Selected schema: {{ schema.name }}</p>
{% endwith %}

UPDATE:

@register.filter
def member(obj, name):
    return getattr(obj, name, None)

So no need for a with tag:

{{ schema_dict|dictitem:schema_code|member:'name' }}

I got this error with a .Net MVC application that uses Kentico as a satellite CMS. The issue was that it needed a proper license for the URL my app was on. It basically stopped the app and caused IIS to return nothing but this 503 - service not available message. I ended up finding the error details in Kentico's Event Log (as a warning). You can create a new license or find license details in Kentico's client portal - https://client.kentico.com/.

You could convert the dataframe to be a single column with stack (this changes the shape from 5x3 to 15x1) and then take the standard deviation:

df.stack().std()         # pandas default degrees of freedom is one

Alternatively, you can use values to convert from a pandas dataframe to a numpy array before taking the standard deviation:

df.values.std(ddof=1)    # numpy default degrees of freedom is zero

Unlike pandas, numpy will give the standard deviation of the entire array by default, so there is no need to reshape before taking the standard deviation.

A couple of additional notes:

• The numpy approach here is a bit faster than the pandas one, which is generally true when you have the option to accomplish the same thing with either numpy or pandas. The speed difference will depend on the size of your data, but numpy was roughly 10x faster when I tested a few different sized dataframes on my laptop (numpy version 1.15.4 and pandas version 0.23.4).

• The numpy and pandas approaches here will not give exactly the same answers, but will be extremely close (identical at several digits of precision). The discrepancy is due to slight differences in implementation behind the scenes that affect how the floating point values get rounded.

Use the word character class. The following is equivalent to a ^[a-zA-Z0-9_]+$:

^\w+$

Explanation:

• ^ start of string
• \w any word character (A-Z, a-z, 0-9, _).
• $ end of string

Use /[^\w]|_/g if you don't want to match the underscore.

et.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {

            et.setHint(temp +" Characters");
        }
    });

So, I had this code:

<div class="dropdown-select-wrapper" *ngIf="contentData">
    <button mat-stroked-button [disableRipple]="true" class="mat-button" (click)="openSelect()" [ngClass]="{'only-icon': !contentData?.buttonText?.length}">
      <i *ngIf="contentData.iconClassInfo" class="dropdown-icon {{contentData.iconClassInfo.name}}"></i>
      <span class="button-text" *ngIf="contentData.buttonText">{{contentData.buttonText}}</span>
    </button>
    <mat-select class="small-dropdown-select" [formControl]="theFormControl" #buttonSelect (selectionChange)="onSelect(buttonSelect.selected)" (click)="$event.stopPropagation();">
      <mat-option *ngFor="let option of options" [ngClass]="{'selected-option': buttonSelect.selected?.value === option[contentData.optionsStructure.valName]}" [disabled]="buttonSelect.selected?.value === option[contentData.optionsStructure.valName] && contentData.optionSelectedWillDisable" [value]="option[contentData.optionsStructure.valName]">
        {{option[contentData.optionsStructure.keyName]}}
      </mat-option>
    </mat-select>
  </div>

Here I was using standalone formControl, and I was getting the error we are talking about, which made no sense for me, since I wasn't working with formgroups or formarrays... it only disappeared when I added the *ngIf to the select it self, so is not being used before it actually exists. That's what solved the issue in my case.

<mat-select class="small-dropdown-select" [formControl]="theFormControl" #buttonSelect (selectionChange)="onSelect(buttonSelect.selected)" (click)="$event.stopPropagation();" *ngIf="theFormControl">
          <mat-option *ngFor="let option of options" [ngClass]="{'selected-option': buttonSelect.selected?.value === option[contentData.optionsStructure.valName]}" [disabled]="buttonSelect.selected?.value === option[contentData.optionsStructure.valName] && contentData.optionSelectedWillDisable" [value]="option[contentData.optionsStructure.valName]">
            {{option[contentData.optionsStructure.keyName]}}
          </mat-option>
        </mat-select>

The reason why your image is resizing which is because it is fluid. You have two ways to do it:

1. Either give a fixed dimension to your image using CSS like:

   .carousel-inner > .item > img {
     width:640px;
     height:360px;
   }

2. A second way to can do this:

   .carousel {
     width:640px;
     height:360px;
   }

"List" is an object getting from backend and using iterator to display in table

"minAmount" , "MaxAmount" is an object variable "mrr" is an just temporary var to get value and iterate mrr to get data.

<table class="table table-hover">
<tbody>
<tr th:each="mrr,iterStat : ${list}">
        <td th:text="${mrr.id}"></td>
        <td th:text="${mrr.minAmount}"></td>
        <td th:text="${mrr.maxAmount}"></td>
</tr>
</tbody>
</table>

You cannot with standard SQL. Column names are not treated like data in SQL.

If you use a SQL engine that has, say, meta-data tables storing column names, types, etc. you may select on that table instead.

With newer releases of jquery (1.3+ I think), all you have to do is set one of the members of the radio set to be required and jquery will take care of the rest:

<input type="radio" name="myoptions" value="blue" class="required"> Blue<br />
<input type="radio" name="myoptions" value="red"> Red<br />
<input type="radio" name="myoptions" value="green"> Green

The above would require at least 1 of the 3 radio options w/ the name of "my options" to be selected before proceeding.

The label suggestion by Mahes, btw, works wonderfully!

Just for completeness, here's a variant that uses print() (works on Python 2.6-3.x):

from __future__ import print_function
try: from cStringIO import StringIO
except ImportError:
     from io import StringIO

def to_int(nums, _s = StringIO()):
    print(*nums, sep='', end='', file=_s)
    s = _s.getvalue()
    _s.truncate(0)
    return int(s)

Time performance of different solutions

I've measured performance of @cdleary's functions. The results are slightly different.

Each function tested with the input list generated by:

def randrange1_10(digit_count): # same as @cdleary
    return [random.randrange(1, 10) for i in xrange(digit_count)]

You may supply your own function via --sequence-creator=yourmodule.yourfunction command-line argument (see below).

The fastest functions for a given number of integers in a list (len(nums) == digit_count) are:

• len(nums) in 1..30

  def _accumulator(nums):
      tot = 0
      for num in nums:
          tot *= 10
          tot += num
      return tot
  

• len(nums) in 30..1000

  def _map(nums):
      return int(''.join(map(str, nums)))
  
  def _imap(nums):
      return int(''.join(imap(str, nums)))
  

|------------------------------+-------------------|
| Fitting polynom              | Function          |
|------------------------------+-------------------|
| 1.00  log2(N)   +  1.25e-015 | N                 |
| 2.00  log2(N)   +  5.31e-018 | N*N               |
| 1.19  log2(N)   +      1.116 | N*log2(N)         |
| 1.37  log2(N)   +      2.232 | N*log2(N)*log2(N) |
|------------------------------+-------------------|
| 1.21  log2(N)   +      0.063 | _interpolation    |
| 1.24  log2(N)   -      0.610 | _genexp           |
| 1.25  log2(N)   -      0.968 | _imap             |
| 1.30  log2(N)   -      1.917 | _map              |

To plot the first figure download cdleary.py and make-figures.py and run (numpy and matplotlib must be installed to plot):

$ python cdleary.py 

Or

$ python make-figures.py --sort-function=cdleary._map \
> --sort-function=cdleary._imap \
> --sort-function=cdleary._interpolation \
> --sort-function=cdleary._genexp --sort-function=cdleary._sum \
> --sort-function=cdleary._reduce --sort-function=cdleary._builtins \
> --sort-function=cdleary._accumulator \
> --sequence-creator=cdleary.randrange1_10 --maxn=1000 

Well... so many good answers but i wanna to add more on it. A brief look on Inner class in Java- Java allows us to define a class within another class and Being able to nest classes in this way has certain advantages:

1. It can hide(It increases encapsulation) the class from other classes - especially relevant if the class is only being used by the class it is contained within. In this case there is no need for the outside world to know about it.

2. It can make code more maintainable as the classes are logically grouped together around where they are needed.

3. The inner class has access to the instance variables and methods of its containing class.

We have mainly three types of Inner Classes

1. Local inner
2. Static Inner Class
3. Anonymous Inner Class

Some of the important points to be remember

• We need class object to access the Local Inner Class in which it exist.
• Static Inner Class get directly accessed same as like any other static method of the same class in which it is exists.
• Anonymous Inner Class are not visible to out side world as well as to the other methods or classes of the same class(in which it is exist) and it is used on the point where it is declared.

Let`s try to see the above concepts practically_

public class MyInnerClass {

public static void main(String args[]) throws InterruptedException {
    // direct access to inner class method
    new MyInnerClass.StaticInnerClass().staticInnerClassMethod();

    // static inner class reference object
    StaticInnerClass staticInnerclass = new StaticInnerClass();
    staticInnerclass.staticInnerClassMethod();

    // access local inner class
    LocalInnerClass localInnerClass = new MyInnerClass().new LocalInnerClass();
    localInnerClass.localInnerClassMethod();

    /*
     * Pay attention to the opening curly braces and the fact that there's a
     * semicolon at the very end, once the anonymous class is created:
     */
    /*
     AnonymousClass anonymousClass = new AnonymousClass() {
         // your code goes here...

     };*/
 }

// static inner class
static class StaticInnerClass {
    public void staticInnerClassMethod() {
        System.out.println("Hay... from Static Inner class!");
    }
}

// local inner class
class LocalInnerClass {
    public void localInnerClassMethod() {
        System.out.println("Hay... from local Inner class!");
    }
 }

}

I hope this will helps to everyone. Please refer for more

You can get the maximum key this way:

<?php
$arr = array("a"=>"test", "b"=>"ztest");
$max = max(array_keys($arr));
?>

The | operator performs a bitwise OR of its two operands (meaning both sides must evaluate to false for it to return false) while the || operator will only evaluate the second operator if it needs to.

http://msdn.microsoft.com/en-us/library/kxszd0kx(VS.71).aspx

http://msdn.microsoft.com/en-us/library/6373h346(VS.71).aspx

If I were lazy, I could say that binary search on a sorted array is O(n2), O(n3), and O(2n), and I would be technically correct in every case.

We can use o-notation ("little-oh") to denote an upper bound that is not asymptotically tight. Both big-oh and little-oh are similar. But, big-oh is likely used to define asymptotically tight upper bound.

How about this? Bootstrap 4

<div class="row justify-content-end">
    <div class="col-3">
        The content is positioned as if there was
        "col-9" classed div appending this one.
    </div>
</div>

This is very simple approach. The Advantage is you can get keys as well:

for (var key in array) {
    var value = array[key];
    console.log(key, value);
}

For ES6:

array.forEach(value => {
  console.log(value)
})  

For ES6: (If you want value, index and the array itself)

array.forEach((value, index, self) => {
  console.log(value, index, self)
})  

Here is my bash script

docker build -t ${IMAGE}:${VERSION} .
docker tag ${IMAGE}:${VERSION} ${IMAGE}:latest

You can then remove untagged images if you rebuilt the same version with

docker rmi $(docker images | grep "^<none>" | awk "{print $3}")

link

or

docker rmi $(docker images | grep "^<none>" | tr -s " " | cut -d' ' -f3 | tr '\n' ' ')

or

Clean up commands:

Docker 1.13 introduces clean-up commands. To remove all unused containers, images, networks and volumes:

docker system prune

or individually:

docker container prune
docker image prune
docker network prune
docker volume prune

In Preferences -> General -> Web Browser, there is the option "Use internal web browser". Select "Use external web browser" instead and check "Firefox".

The best "opposite" would be to return it to the default value which is:

display: inline

UTF stands for stands for Unicode Transformation Format.Basically in today's world there are scripts written in hundreds of other languages, formats not covered by the basic ASCII used earlier. Hence, UTF came into existence.

UTF-8 has character encoding capabilities and its code unit is 8 bits while that for UTF-16 it is 16 bits.

Spinner don't support Hint, i recommend you to make a custom spinner adapter.

check this link : https://stackoverflow.com/a/13878692/1725748

In C programming, static is a reserved keyword which controls both lifetime as well as visibility. If we declare a variable as static inside a function then it will only visible throughout that function. In this usage, this static variable's lifetime will start when a function call and it will destroy after the execution of that function. you can see the following example:

#include<stdio.h> 
int counterFunction() 
{ 
  static int count = 0; 
  count++; 
  return count; 
} 

int main() 
{ 
  printf("First Counter Output = %d\n", counterFunction()); 
  printf("Second Counter Output = %d ", counterFunction()); 
  return 0; 
}

Above program will give us this Output:

First Counter Output = 1 
Second Counter Output = 1 

Because as soon as we call the function it will initialize the count = 0. And while we execute the counterFunction it will destroy the count variable.

Here, in this post you will find the detailed code for establishing socket between devices or between two application in the same mobile.

You have to create two application to test below code.

In both application's manifest file, add below permission

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

1st App code: Client Socket

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TableRow
        android:id="@+id/tr_send_message"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="11dp">

        <EditText
            android:id="@+id/edt_send_message"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:layout_marginRight="10dp"
            android:layout_marginLeft="10dp"
            android:hint="Enter message"
            android:inputType="text" />

        <Button
            android:id="@+id/btn_send"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginRight="10dp"
            android:text="Send" />
    </TableRow>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/tr_send_message"
        android:layout_marginTop="25dp"
        android:id="@+id/scrollView2">

        <TextView
            android:id="@+id/tv_reply_from_server"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" />
    </ScrollView>
</RelativeLayout>

MainActivity.java

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;

/**
 * Created by Girish Bhalerao on 5/4/2017.
 */
public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private TextView mTextViewReplyFromServer;
    private EditText mEditTextSendMessage;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button buttonSend = (Button) findViewById(R.id.btn_send);

        mEditTextSendMessage = (EditText) findViewById(R.id.edt_send_message);
        mTextViewReplyFromServer = (TextView) findViewById(R.id.tv_reply_from_server);

        buttonSend.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {

        switch (v.getId()) {

            case R.id.btn_send:
                sendMessage(mEditTextSendMessage.getText().toString());
                break;
        }
    }

    private void sendMessage(final String msg) {

        final Handler handler = new Handler();
        Thread thread = new Thread(new Runnable() {
            @Override
            public void run() {

                try {
                    //Replace below IP with the IP of that device in which server socket open.
                    //If you change port then change the port number in the server side code also.
                    Socket s = new Socket("xxx.xxx.xxx.xxx", 9002);

                    OutputStream out = s.getOutputStream();

                    PrintWriter output = new PrintWriter(out);

                    output.println(msg);
                    output.flush();
                    BufferedReader input = new BufferedReader(new InputStreamReader(s.getInputStream()));
                    final String st = input.readLine();

                    handler.post(new Runnable() {
                        @Override
                        public void run() {

                            String s = mTextViewReplyFromServer.getText().toString();
                            if (st.trim().length() != 0)
                                mTextViewReplyFromServer.setText(s + "\nFrom Server : " + st);
                        }
                    });

                    output.close();
                    out.close();
                    s.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        });

        thread.start();
    }
}

2nd App Code - Server Socket

activity_main.xml

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

    <Button
        android:id="@+id/btn_stop_receiving"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="STOP Receiving data"
        android:layout_alignParentTop="true"
        android:enabled="false"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="89dp" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/btn_stop_receiving"
        android:layout_marginTop="35dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true">

        <TextView
            android:id="@+id/tv_data_from_client"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical" />
    </ScrollView>

    <Button
        android:id="@+id/btn_start_receiving"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="START Receiving data"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="14dp" />
</RelativeLayout>

MainActivity.java

import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

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

/**
 * Created by Girish Bhalerao on 5/4/2017.
 */
public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    final Handler handler = new Handler();

    private Button buttonStartReceiving;
    private Button buttonStopReceiving;
    private TextView textViewDataFromClient;
    private boolean end = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonStartReceiving = (Button) findViewById(R.id.btn_start_receiving);
        buttonStopReceiving = (Button) findViewById(R.id.btn_stop_receiving);
        textViewDataFromClient = (TextView) findViewById(R.id.tv_data_from_client);

        buttonStartReceiving.setOnClickListener(this);
        buttonStopReceiving.setOnClickListener(this);

    }

    private void startServerSocket() {

        Thread thread = new Thread(new Runnable() {

            private String stringData = null;

            @Override
            public void run() {

                try {

                    ServerSocket ss = new ServerSocket(9002);

                    while (!end) {
                        //Server is waiting for client here, if needed
                        Socket s = ss.accept();
                        BufferedReader input = new BufferedReader(new InputStreamReader(s.getInputStream()));
                        PrintWriter output = new PrintWriter(s.getOutputStream());

                        stringData = input.readLine();
                        output.println("FROM SERVER - " + stringData.toUpperCase());
                        output.flush();

                        try {
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                        updateUI(stringData);
                        if (stringData.equalsIgnoreCase("STOP")) {
                            end = true;
                            output.close();
                            s.close();
                            break;
                        }

                        output.close();
                        s.close();
                    }
                    ss.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

        });
        thread.start();
    }

    private void updateUI(final String stringData) {

        handler.post(new Runnable() {
            @Override
            public void run() {

                String s = textViewDataFromClient.getText().toString();
                if (stringData.trim().length() != 0)
                    textViewDataFromClient.setText(s + "\n" + "From Client : " + stringData);
            }
        });
    }

    @Override
    public void onClick(View v) {

        switch (v.getId()) {
            case R.id.btn_start_receiving:

                startServerSocket();
                buttonStartReceiving.setEnabled(false);
                buttonStopReceiving.setEnabled(true);
                break;

            case R.id.btn_stop_receiving:

                //stopping server socket logic you can add yourself
                buttonStartReceiving.setEnabled(true);
                buttonStopReceiving.setEnabled(false);
                break;
        }
    }
}

I'm writing this answer w.r.t. to python 3, as I've initially got the same problem.

I was supposed to get data from arduino using PySerial, and write them in a .csv file. Each reading in my case ended with '\r\n', so newline was always separating each line.

In my case, newline='' option didn't work. Because it showed some error like :

with open('op.csv', 'a',newline=' ') as csv_file:

ValueError: illegal newline value: ''

So it seemed that they don't accept omission of newline here.

Seeing one of the answers here only, I mentioned line terminator in the writer object, like,

writer = csv.writer(csv_file, delimiter=' ',lineterminator='\r')

and that worked for me for skipping the extra newlines.

for me the solution was to include skip = 0 (number of rows to skip at the top of the file. Can be set >0)

mydata <- read.csv(file = "file.csv", header = TRUE, sep = ",", skip = 22)

Why I think Subversion is better than Git (at least for the projects I work on), mainly due to its usability, and simpler workflow:

http://www.databasesandlife.com/why-subversion-is-better-than-git/

git shelve doesn't exist in Git.

Only git stash:

• when you want to record the current state of the working directory and the index, but want to go back to a clean working directory.
• which saves your local modifications away and reverts the working directory to match the HEAD commit.

You had a 2008 old project git shelve to isolate modifications in a branch, but that wouldn't be very useful nowadays.

As documented in Intellij IDEA shelve dialog, the feature "shelving and unshelving" is not linked to a VCS (Version Control System tool) but to the IDE itself, to temporarily storing pending changes you have not committed yet in changelist.

Note that since Git 2.13 (Q2 2017), you now can stash individual files too.

if you wanted to create a separate list of results in the controller you could apply a filter

function MyCtrl($scope, filterFilter) {
  $scope.results = {
    year:2013,
    subjects:[
      {title:'English',grade:'A'},
      {title:'Maths',grade:'A'},
      {title:'Science',grade:'B'},
      {title:'Geography',grade:'C'}
    ]
  };
  //create a filtered array of results 
  //with grade 'C' or subjects that have been failed
  $scope.failedSubjects = filterFilter($scope.results.subjects, {'grade':'C'});
}

Then you can reference failedSubjects the same way you would reference the results object

you can read more about it here https://docs.angularjs.org/guide/filter

since this answer angular have updated the documentation they now recommend calling the filter

// update 
// eg: $filter('filter')(array, expression, comparator, anyPropertyKey);
// becomes
$scope.failedSubjects = $filter('filter')($scope.results.subjects, {'grade':'C'});

No, it's not like any of those things. It's simply the dynamic replacement of attributes at runtime.

For instance, consider a class that has a method get_data. This method does an external lookup (on a database or web API, for example), and various other methods in the class call it. However, in a unit test, you don't want to depend on the external data source - so you dynamically replace the get_data method with a stub that returns some fixed data.

Because Python classes are mutable, and methods are just attributes of the class, you can do this as much as you like - and, in fact, you can even replace classes and functions in a module in exactly the same way.

But, as a commenter pointed out, use caution when monkeypatching:

1. If anything else besides your test logic calls get_data as well, it will also call your monkey-patched replacement rather than the original -- which can be good or bad. Just beware.

2. If some variable or attribute exists that also points to the get_data function by the time you replace it, this alias will not change its meaning and will continue to point to the original get_data. (Why? Python just rebinds the name get_data in your class to some other function object; other name bindings are not impacted at all.)

If you have the following:

<input type="file" id="FileSelect">

then just do:

$("#FileSelect").val('');

to reset or clear last selected file.

UPDATE

My original answer is from a long time ago, and the links are broken; updating it so that it continues to be useful.

I'm including updated solutions inline, as well as a working examples on JSFiddle. Note: I'm relying on a CSS reset, though I'm not including those styles inline. Refer to normalize.css

Solution 1 - margin offset

https://jsfiddle.net/UnsungHero97/ur20fndv/2/

HTML

<div id="wrapper">
  <div id="content">
    <h1>Hello, World!</h1>
  </div>
</div>
<footer id="footer">
  <div id="footer-content">Sticky Footer</div>
</footer>

CSS

html, body {
  margin: 0px;
  padding: 0px;
  min-height: 100%;
  height: 100%;
}

#wrapper {
  background-color: #e3f2fd;
  min-height: 100%;
  height: auto !important;
  margin-bottom: -50px; /* the bottom margin is the negative value of the footer's total height */
}

#wrapper:after {
  content: "";
  display: block;
  height: 50px; /* the footer's total height */
}

#content {
  height: 100%;
}

#footer {
  height: 50px; /* the footer's total height */
}

#footer-content {
  background-color: #f3e5f5;
  border: 1px solid #ab47bc;
  height: 32px; /* height + top/bottom paddding + top/bottom border must add up to footer height */
  padding: 8px;
}

Solution 2 - flexbox

https://jsfiddle.net/UnsungHero97/oqom5e5m/3/

HTML

<div id="content">
  <h1>Hello, World!</h1>
</div>
<footer id="footer">Sticky Footer</footer>

CSS

html {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

#content {
  background-color: #e3f2fd;
  flex: 1;
  padding: 20px;
}

#footer {
  background-color: #f3e5f5;
  padding: 20px;
}

Here's some links with more detailed explanations and different approaches:

• https://css-tricks.com/couple-takes-sticky-footer/
• https://philipwalton.github.io/solved-by-flexbox/demos/sticky-footer/
• http://matthewjamestaylor.com/blog/keeping-footers-at-the-bottom-of-the-page

ORIGINAL ANSWER

Is this what you mean?

http://ryanfait.com/sticky-footer/

This method uses only 15 lines of CSS and hardly any HTML markup. Even better, it's completely valid CSS, and it works in all major browsers. Internet Explorer 5 and up, Firefox, Safari, Opera and more.

This footer will stay at the bottom of the page permanently. This means that if the content is more than the height of the browser window, you will need to scroll down to see the footer... but if the content is less than the height of the browser window, the footer will stick to the bottom of the browser window instead of floating up in the middle of the page.

Let me know if you need help with the implementation. I hope this helps.

1. Create an iFrame,
2. put a form in it with Hidden inputs,
3. set the form's action to the URL,
4. Add iframe to document
5. submit the form

Pseudocode

 var ifr = document.createElement('iframe');
 var frm = document.createElement('form');
 frm.setAttribute("action", "yoururl");
 frm.setAttribute("method", "post");

 // create hidden inputs, add them
 // not shown, but similar (create, setAttribute, appendChild)

 ifr.appendChild(frm);
 document.body.appendChild(ifr);
 frm.submit();

You probably want to style the iframe, to be hidden and absolutely positioned. Not sure cross site posting will be allowed by the browser, but if so, this is how to do it.

I had the exact same problem, found that I was missing

<mdb>  
  <resource-adapter-ref resource-adapter-name="hornetq-ra"/>  
  <bean-instance-pool-ref pool-name="mdb-strict-max-pool"/>  
</mdb>  

under

<subsystem xmlns="urn:jboss:domain:ejb3:1.2">  

in standalone/configuration/standalone.xml

ALTER USER 'mysqlUsername'@'localhost' IDENTIFIED WITH mysql_native_password BY 'mysqlUsernamePassword';

Remove quotes (') after ALTER USER and keep quote (') after mysql_native_password BY

It is working for me also.

As a number of people have pointed out, disabling the submit button has some negative side effects (at least in Chrome it prevents the name/value of the button pressed from being submitted). My solution was to simply add an attribute to indicate that submit has been requested, and then check for the presence of this attribute on every submit. Because I'm using the submit function, this is only called after all HTML 5 validation is successful. Here is my code:

  $("form.myform").submit(function (e) {
    // Check if we have submitted before
    if ( $("#submit-btn").attr('attempted') == 'true' ) {
      //stop submitting the form because we have already clicked submit.
      e.preventDefault();
    }
    else {
      $("#submit-btn").attr("attempted", 'true');
    }
  });

You can center a fixed or absolute positioned element setting right and left to 0, and then margin-left & margin-right to auto as if you were centering a static positioned element.

#example {
    position: fixed;
    /* center the element */
    right: 0;
    left: 0;
    margin-right: auto;
    margin-left: auto;
    /* give it dimensions */
    min-height: 10em;
    width: 90%;
}

See this example working on this fiddle.

With [email protected] or later you can install types with:

npm install -D @types/jasmine

Then import the types automatically using the types option in tsconfig.json:

"types": ["jasmine"],

This solution does not require import {} from 'jasmine'; in each spec file.

There's no built-in function for this.

Function SheetExists(SheetName As String, Optional wb As Excel.Workbook)
   Dim s As Excel.Worksheet
   If wb Is Nothing Then Set wb = ThisWorkbook
   On Error Resume Next
   Set s = wb.Sheets(SheetName)
   On Error GoTo 0
   SheetExists = Not s Is Nothing
End Function

Microsoft Docs stands for:

Once an exception is thrown, part of the information it carries is the stack trace. The stack trace is a list of the method call hierarchy that starts with the method that throws the exception and ends with the method that catches the exception. If an exception is re-thrown by specifying the exception in the throw statement, the stack trace is restarted at the current method and the list of method calls between the original method that threw the exception and the current method is lost. To keep the original stack trace information with the exception, use the throw statement without specifying the exception.

Source: https://docs.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca2200

You can use:

date1.before(date2);

or:

date1.after(date2);

Feedback Guys, first create database example live; before execute sql file below.

sqlcmd -U SA -P yourPassword -S YourHost -d live -i live.sql

In my case the error states that the assemly

Oracle.DataAccess, Version=2.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342

is missing.

When I run gacutil.exe /l 'Oracle.DataAccess' the result was:

The Global Assembly Cache contains the following assemblies:
Oracle.DataAccess, Version=2.112.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342, processorArchitecture=x86

Number of items = 1

At this moment I have just installed the oracle client: win32_11gR2_client

Then I installed oracle developer tools ODTwithODAC112030_deleloper_tool

Now gacutil is saying:

The Global Assembly Cache contains the following assemblies:
Oracle.DataAccess, Version=2.112.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342, processorArchitecture=x86
Oracle.DataAccess, Version=2.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342, processorArchitecture=x86

Number of items = 2

Fixed, one totally missing assembly case

Indent it! first. That would take care of your SyntaxError.

Apart from that there are couple of other problems in your program.

• Use raw_input when you want accept string as an input. input takes only Python expressions and it does an eval on them.

• You are using certain 8bit characters in your script like 0°. You might need to define the encoding at the top of your script using # -*- coding:latin-1 -*- line commonly called as coding-cookie.

• Also, while doing str comparison, normalize the strings and compare. (people using lower() it) This helps in giving little flexibility with user input.

• I also think that reading Python tutorial might helpful to you. :)

Sample Code

#-*- coding: latin1 -*-

while 1:
    date=raw_input("Example: March 21 | What is the date? ")
    if date.lower() == "march 21":

    ....

SOLUTION

<style>
.container {
    margin: 10px;
    width: 115px;
    height: 115px;
    line-height: 115px;
    text-align: center;
    border: 1px solid red;
    background-image: url("http://i.imgur.com/H9lpVkZ.jpg");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;

}

</style>

<div class='container'>
</div>

<div class='container' style='width:50px;height:100px;line-height:100px'>
</div>

<div class='container' style='width:140px;height:70px;line-height:70px'>
</div>

string text = "ABCD";
for (int i = 0; i < text.Length; i++)
{
  Console.WriteLine(text[i] + " => " + Char.ConvertToUtf32(text, i));
}

If I remember correctly, the ASCII value is the number of the lower seven bits of the Unicode number.

To use any progress-bar frameworks in a useful manner, to get an actual progress percent and an estimated ETA, you need to be able to declare how many steps it will have.

So, your compute function in another thread, are you able to split it in a number of logical steps? Can you modify its code?

You don't need to refactor or split it in any way, you could just put some strategic yields in some places or if it has a for loop, just one!

That way, your function will look something like this:

def compute():
    for i in range(1000):
        time.sleep(.1)  # process items
        yield  # insert this and you're done!

Then just install:

pip install alive-progress

And use it like:

from alive_progress import alive_bar

with alive_bar(1000) as bar:
    for i in compute():
        bar()

To get a cool progress-bar!

|¦¦¦¦¦¦¦¦¦¦¦¦¦?                      | ??? 321/1000 [32%] in 8s (40.1/s, eta: 16s)

Disclaimer: I'm the author of alive-progress, but it should solve your problem nicely. Read the documentation at https://github.com/rsalmei/alive-progress, here is an example of what it can do:

Now from docker client you can simply search your private registry directly without using the HTTP APIs or any extra tools:

e.g. searching for centos image:

docker search localhost:5000/centos

This is definitely a syntax issue, when it happened to me I discovered I typed

module.export = Component; instead of module.exports = Component;

As others have pointed out, params values can come from the query string of a GET request, or the form data of a POST request, but there's also a third place they can come from: The path of the URL.

As you might know, Rails uses something called routes to direct requests to their corresponding controller actions. These routes may contain segments that are extracted from the URL and put into params. For example, if you have a route like this:

match 'products/:id', ...

Then a request to a URL like http://example.com/products/42 will set params[:id] to 42.

If your DBMS supports the notation, you need a separate set of parentheses for each row:

INSERT INTO Data(Col1) VALUES ('Hello'), ('World');

The cross-referenced question shows examples for inserting into two columns.

Alternatively, every SQL DBMS supports the notation using separate statements, one for each row to be inserted:

INSERT INTO Data (Col1) VALUES ('Hello');
INSERT INTO Data (Col1) VALUES ('World');

If you are like me and have certain restrictions in a production environment, you may wish to use a table variable instead of temp table, and an ad-hoc query rather than a create procedure.

Of course depending on your sql server instance, it must support table variables.

I also added a USE statement to narrow the search scope

USE DATABASE_NAME
DECLARE @SearchStr nvarchar(100) = 'SEARCH_TEXT'
DECLARE @Results TABLE (ColumnName nvarchar(370), ColumnValue nvarchar(3630))

SET NOCOUNT ON

DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110)
SET  @TableName = ''
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')

WHILE @TableName IS NOT NULL

BEGIN
    SET @ColumnName = ''
    SET @TableName = 
    (
        SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
        FROM     INFORMATION_SCHEMA.TABLES
        WHERE         TABLE_TYPE = 'BASE TABLE'
            AND    QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
            AND    OBJECTPROPERTY(
                    OBJECT_ID(
                        QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
                         ), 'IsMSShipped'
                           ) = 0
    )

    WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)

    BEGIN
        SET @ColumnName =
        (
            SELECT MIN(QUOTENAME(COLUMN_NAME))
            FROM     INFORMATION_SCHEMA.COLUMNS
            WHERE         TABLE_SCHEMA    = PARSENAME(@TableName, 2)
                AND    TABLE_NAME    = PARSENAME(@TableName, 1)
                AND    DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar', 'int', 'decimal')
                AND    QUOTENAME(COLUMN_NAME) > @ColumnName
        )

        IF @ColumnName IS NOT NULL

        BEGIN
            INSERT INTO @Results
            EXEC
            (
                'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630) 
                FROM ' + @TableName + ' (NOLOCK) ' +
                ' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
            )
        END
    END    
END

SELECT ColumnName, ColumnValue FROM @Results

Use your jquery like this

$('.home').css({'background-image':'url(images/tabs3.png)'});

Works with MULTIPLE arguments with NESTED arrays:

//:Return true if all of the arrays equal.
//:Works with nested arrays.
function AllArrEQ(...arrays){
    for(var i = 0; i < (arrays.length-1); i++ ){
        var a1 = arrays[i+0];
        var a2 = arrays[i+1];
        var res =( 
            //:Are both elements arrays?
            Array.isArray(a1)&&Array.isArray(a2) 
            ?
            //:Yes: Compare Each Sub-Array:
            //:v==a1[i]
            a1.every((v,i)=>(AllArrEQ(v,a2[i])))
            :
            //:No: Simple Comparison:
            (a1===a2)
        );;
        if(!res){return false;}
    };;
    return( true );
};;

console.log( AllArrEQ( 
        [1,2,3,[4,5,[6,"ALL_EQUAL"   ]]],
        [1,2,3,[4,5,[6,"ALL_EQUAL"   ]]],
        [1,2,3,[4,5,[6,"ALL_EQUAL"   ]]],
        [1,2,3,[4,5,[6,"ALL_EQUAL"   ]]],
));; 

In a new version of mysql-server recipes above will crush "mysql" database. In old version it works. In new some tables switches to table type INNODB, and by doing so you will damage them. The easiest way is to:

• dump all you databases
• uninstall mysql-server,
• add in remained my.cnf:

    [mysqld]
    innodb_file_per_table=1

• erase all in /var/lib/mysql
• install mysql-server
• restore users and databases

To remove an app from the App Store, deselect all territories in your app's Rights and Pricing section on the App Summary page accessible from the Manage Your Applications module. Your app status will change to Developer Removed from Sale and will be removed from the App Store until you make it available again using the Rights and Pricing section.

The static keyword, when applied to a class, tells the compiler to create a single instance of that class. It is not then possible to 'new' one or more instance of the class. All methods in a static class must themselves be declared static.

It is possible, And often desirable, to have static methods of a non-static class. For example a factory method when creates an instance of another class is often declared static as this means that a particular instance of the class containing the factor method is not required.

For a good explanation of how, when and where see MSDN

FileNameOnly = Dir(.SelectedItems(1))

it's mentioned right in the Socket Programming HOWTO (py2/py3)

Disconnecting

Strictly speaking, you’re supposed to use shutdown on a socket before you close it. The shutdown is an advisory to the socket at the other end. Depending on the argument you pass it, it can mean “I’m not going to send anymore, but I’ll still listen”, or “I’m not listening, good riddance!”. Most socket libraries, however, are so used to programmers neglecting to use this piece of etiquette that normally a close is the same as shutdown(); close(). So in most situations, an explicit shutdown is not needed.

...

Create the user with a password :

http://www.postgresql.org/docs/current/static/sql-createuser.html

CREATE USER name [ [ WITH ] option [ ... ] ]

where option can be:

      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | CREATEUSER | NOCREATEUSER
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | CONNECTION LIMIT connlimit
    | [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
    | VALID UNTIL 'timestamp'
    | IN ROLE role_name [, ...]
    | IN GROUP role_name [, ...]
    | ROLE role_name [, ...]
    | ADMIN role_name [, ...]
    | USER role_name [, ...]
    | SYSID uid

Then grant the user rights on a specific database :

http://www.postgresql.org/docs/current/static/sql-grant.html

Example :

grant all privileges on database db_name to someuser;

use this code in the file application.properties:

#Enable logging for config troubeshooting
logging.level.org.hibernate.SQL=DEBUG
logging.level.com.zaxxer.hikari.HikariConfig=DEBUG
logging.level.org.hibernate.type.descriptor.sql.BasicBinder=TRACE

SELECT LEFT(Car, LEN(Car) - 1)
FROM (
    SELECT Car + ', '
    FROM Cars
    FOR XML PATH ('')
  ) c (Car)

In your comment to max's answer, you say that what you really wanted to get is the key in, and not the index of, the KeyValuePair that contains a certain value. You could edit your question to make it more clear.

It is worth pointing out (EricM has touched upon this in his answer) that a value might appear more than once in the dictionary, in which case one would have to think which key he would like to get: e.g. the first that comes up, the last, all of them?

If you are sure that each key has a unique value, you could have another dictionary, with the values from the first acting as keys and the previous keys acting as values. Otherwise, this second dictionary idea (suggested by Jon Skeet) will not work, as you would again have to think which of all the possible keys to use as value in the new dictionary.

If you were asking about the index, though, EricM's answer would be OK. Then you could get the KeyValuePair in question by using:

yourDictionary.ElementAt(theIndexYouFound);

provided that you do not add/remove things in yourDictionary.

PS: I know it's been almost 7 years now, but what the heck. I thought it best to formulate my answer as addressing the OP, but of course by now one can say it is an answer for just about anyone else but the OP. Fully aware of that, thank you.

If you have N nodes, there are N - 1 directed edges than can lead from it (going to every other node). Therefore, the maximum number of edges is N * (N - 1).

Maybe this is going a bit too far back but…

Also, I’d like to suggest that multiline text fields have a different type (e.g. “textarea") than single-line fields ("text"), as they really are different types of things, and imply different issues (semantics) for client-side handling.

– Marc Andreessen, 11 October 1993

<?php
$string = '`~!@#$%^&^&*()_+{}[]|\/;:"< >,.?-<h1>You .</h1><p> text</p>'."'";
$string=strip_tags($string,"");
$string = preg_replace('/[^A-Za-z0-9\s.\s-]/','',$string); 
echo $string = str_replace( array( '-', '.' ), '', $string);
?>

I am going to assume you are using the tnsnames.ora file to specify your available database services. If so connection errors usually come down to two things.

1. The application cannot find the TNS entry you specified in the connection string.

2. The TNS entry was found, but the IP or host is not correct in the tnsnames.ora file.

To expand on number 1 (which I think is your problem). When you tell Oracle to connect using something like:

sqlplus user/pass@service

The service is defined in the tnsnames.ora file. If I attempt to connect with a service that is not defined in my tnsnames.ora, I get the error you get:

[sodonnel@home ~]$ sqlplus sodonnel/sodonnel@nowhere

SQL*Plus: Release 11.2.0.1.0 Production on Mon Oct 31 21:42:15 2011

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

ERROR:
ORA-12154: TNS:could not resolve the connect identifier specified

So you need to check a few things:

1. Is there a tnsnames.ora file - I think yes because your console can connect
2. Is there an entry in the file for the service - I think also yes as the console connects
3. Can the application find the tnsnames.ora?

Your problem may well be number 3 - does the application run as a different user than when you run the console?

Oracle looks for the tnsnames.ora file in the directory defined in the TNS_ADMIN environment variable - If you are running as different users, then maybe the TNS_ADMIN environment variable is not set, and therefore it cannot find the file?

This should answer:

How To: Configure MachineKey in ASP.NET 2.0 - Web Farm Deployment Considerations

Web Farm Deployment Considerations

If you deploy your application in a Web farm, you must ensure that the configuration files on each server share the same value for validationKey and decryptionKey, which are used for hashing and decryption respectively. This is required because you cannot guarantee which server will handle successive requests.

With manually generated key values, the settings should be similar to the following example.

<machineKey  
validationKey="21F090935F6E49C2C797F69BBAAD8402ABD2EE0B667A8B44EA7DD4374267A75D7
               AD972A119482D15A4127461DB1DC347C1A63AE5F1CCFAACFF1B72A7F0A281B"       

decryptionKey="ABAA84D7EC4BB56D75D217CECFFB9628809BDB8BF91CFCD64568A145BE59719F"
validation="SHA1"
decryption="AES"
/>

If you want to isolate your application from other applications on the same server, place the in the Web.config file for each application on each server in the farm. Ensure that you use separate key values for each application, but duplicate each application's keys across all servers in the farm.

In short, to set up the machine key refer the following link: Setting Up a Machine Key - Orchard Documentation.

Setting Up the Machine Key Using IIS Manager

If you have access to the IIS management console for the server where Orchard is installed, it is the easiest way to set-up a machine key.

Start the management console and then select the web site. Open the machine key configuration:

The machine key control panel has the following settings:

Uncheck "Automatically generate at runtime" for both the validation key and the decryption key.

Click "Generate Keys" under "Actions" on the right side of the panel.

Click "Apply".

and add the following line to the web.config file in all the webservers under system.web tag if it does not exist.

<machineKey  
    validationKey="21F0SAMPLEKEY9C2C797F69BBAAD8402ABD2EE0B667A8B44EA7DD4374267A75D7
                   AD972A119482D15A4127461DB1DC347C1A63AE5F1CCFAACFF1B72A7F0A281B"           
    decryptionKey="ABAASAMPLEKEY56D75D217CECFFB9628809BDB8BF91CFCD64568A145BE59719F"
    validation="SHA1"
    decryption="AES"
/>

Please make sure that you have a permanent backup of the machine keys and web.config file

I had the same its because of version incompatibility check for version or remove version if using spring boot

/var/www/html is just the default root folder of the web server. You can change that to be whatever folder you want by editing your apache.conf file (usually located in /etc/apache/conf) and changing the DocumentRoot attribute (see http://httpd.apache.org/docs/current/mod/core.html#documentroot for info on that)

Many hosts don't let you change these things yourself, so your mileage may vary. Some let you change them, but only with the built in admin tools (cPanel, for example) instead of via a command line or editing the raw config files.

You can use File.WriteAllBytes

Why :not just use two :not:

input:not([type="radio"]):not([type="checkbox"])

_{Yes, it is intentional}

If you have date as a datetime.datetime (or a datetime.date) instance and want to combine it via a time from a datetime.time instance, then you can use the classmethod datetime.datetime.combine:

import datetime
dt = datetime.datetime(2020, 7, 1)
t = datetime.time(12, 34)
combined = datetime.datetime.combine(dt.date(), t)

As the error says you have not correctly indented code, check_exists_sql is not aligned with line above it cursor = db.cursor() .

Also use 4 spaces for indentation.

Read this http://diveintopython.net/getting_to_know_python/indenting_code.html

I see this error after I disabled php5.6 and enabled php7.3 in ubuntu18.0.4

so i reverse it and problem resolved :DDD

Summary: Instead of a.f(); it should be a->f();

In main you have defined a as a pointer to object of A, so you can access functions using the -> operator.

An alternate, but less readable way is (*a).f()

a.f() could have been used to access f(), if a was declared as: A a;

The real problem is how Netbeans JARs its projects. The "Class-Path:" in the Manifest file is unnecessary when actually publishing your program for others to use. If you have an external Library added in Netbeans it acts as a package. I suggest you use a program like WINRAR to view the files within the jar and add your libraries as packages directly into the jar file.

How the inside of the jar file should look:

MyProject.jar

    Manifest.MF
         Main-Class: mainClassFolder.Mainclass

    mainClassFolder
         Mainclass.class

    packageFolder
         IamUselessWithoutMain.class

For Kotlin Users

You just need to add ? with Intent in onActivityResult as the data can be null if user cancels the transaction or anything goes wrong. So we need to define data as nullable in onActivityResult

Just replace onActivityResult signature of SampleActivity with below:

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?)

I used the below code to redirect to new page

$window.location.href = '/foldername/page.html';

and injected $window object in my controller function.

The MacGyver way,just for lulz

var a = [80, 77, 88, 95, 68];_x000D_
_x000D_
console.log(eval(a.join('+'))/a.length)

Many screencasts displaying an iPhone application simply use the iPhone Simulator, which is one option.

You can also take screenshots on the phone by quickly pressing the menu and the power/sleep button at the same time. The image is then saved to your "Camera Roll" and easily transferable to the computer

The other way is only possible with a Jailbroken phone - Veency is a VNC server for the iPhone, which you can connect to with a regular VNC client.

Just wondering why you are using 2 directives?

It seems like, in this case it would be more straightforward to have a controller as the parent - handle adding the data from your service to its $scope, and pass the model you need from there into your warrantyDirective.

Or for that matter, you could use 0 directives to achieve the same result. (ie. move all functionality out of the separate directives and into a single controller).

It doesn't look like you're doing any explicit DOM transformation here, so in this case, perhaps using 2 directives is overcomplicating things.

Alternatively, have a look at the Angular documentation for directives: http://docs.angularjs.org/guide/directive The very last example at the bottom of the page explains how to wire up dependent directives.

Given a sample dataframe df as:

a,b
1,2
2,3
3,4
4,5

what you want is:

df['a'] = df['a'].apply(lambda x: x + 1)

that returns:

   a  b
0  2  2
1  3  3
2  4  4
3  5  5

I would also recommend using the Perl debugger.

However, since you asked about something like shell's -x have a look at the Devel::Trace module which does something similar.

As amaud576875 said, the \r escape sequence signifies a carriage-return, similar to pressing the Enter key. However, I'm not sure how you get "o world"; you should (and I do) get "my first hello world" and then a new line. Depending on what operating system you're using (I'm using Mac) you might want to use a \n instead of a \r.

You can find the adb tool in /platform-tools/

cd Library/Android/sdk/platform-tools/

You can check your devices using:

./adb devices

My result:

List of devices attached
XXXXXXXXX   device

Set a TCP port:

./adb shell setprop service.adb.tcp.port 4444

./adb tcpip 4444

Result message:

restarting in TCP mode port: 4444

To init a wifi connection you have to check your device IP and execute:

./adb connect 192.168.0.155:4444

Good luck!

malloc() and calloc() are functions from the C standard library that allow dynamic memory allocation, meaning that they both allow memory allocation during runtime.

Their prototypes are as follows:

void *malloc( size_t n);
void *calloc( size_t n, size_t t)

There are mainly two differences between the two:

• Behavior: malloc() allocates a memory block, without initializing it, and reading the contents from this block will result in garbage values. calloc(), on the other hand, allocates a memory block and initializes it to zeros, and obviously reading the content of this block will result in zeros.

• Syntax: malloc() takes 1 argument (the size to be allocated), and calloc() takes two arguments (number of blocks to be allocated and size of each block).

The return value from both is a pointer to the allocated block of memory, if successful. Otherwise, NULL will be returned indicating the memory allocation failure.

Example:

int *arr;

// allocate memory for 10 integers with garbage values
arr = (int *)malloc(10 * sizeof(int)); 

// allocate memory for 10 integers and sets all of them to 0
arr = (int *)calloc(10, sizeof(int));

The same functionality as calloc() can be achieved using malloc() and memset():

// allocate memory for 10 integers with garbage values   
arr= (int *)malloc(10 * sizeof(int));
// set all of them to 0
memset(arr, 0, 10 * sizeof(int)); 

Note that malloc() is preferably used over calloc() since it's faster. If zero-initializing the values is wanted, use calloc() instead.

For passing both a function, and any arguments to the function:

from typing import Callable    

def looper(fn: Callable, n:int, *args, **kwargs):
    """
    Call a function `n` times

    Parameters
    ----------
    fn: Callable
        Function to be called.
    n: int
        Number of times to call `func`.
    *args
        Positional arguments to be passed to `func`.
    **kwargs
        Keyword arguments to be passed to `func`.

    Example
    -------
    >>> def foo(a:Union[float, int], b:Union[float, int]):
    ...    '''The function to pass'''
    ...    print(a+b)
    >>> looper(foo, 3, 2, b=4)
    6
    6
    6       
    """
    for i in range(n):
        fn(*args, **kwargs)

Depending on what you are doing, it could make sense to define a decorator, or perhaps use functools.partial.

Just do this:

>>> with open("path/to/file") as f: # The with keyword automatically closes the file when you are done
...     print f.read()

This will print the file in the terminal.

Best avoid casting by declaring f to be f the correct type to correspond to the JSON.

By default, git will update execute file permissions if you change them. It will not change or track any other permissions.

If you don't see any changes when modifying execute permission, you probably have a configuration in git which ignore file mode.

Look into your project, in the .git folder for the config file and you should see something like this:

[core]
    filemode = false

You can either change it to true in your favorite text editor, or run:

git config core.filemode true

Then, you should be able to commit normally your files. It will only commit the permission changes.

The difference is that in C++ your object is on the stack, whereas in Java, your object is in the heap. If A and B are Objects, any time in Java you do:

B = A

A and B point to the same object, so anything you do to A you do to B and vice versa.

Use new HashMap() if you want two different objects.

And you can use Map.putAll(...) to copy data between two Maps.

Using the time.h library, try something like this:

long start_time, end_time, elapsed;

start_time = clock();
// Do something
end_time = clock();

elapsed = (end_time - start_time) / CLOCKS_PER_SEC * 1000;

Here is a solution for C using gcc :

gcc -S program.c && gcc program.c -o output

1. Here the first part stores the assembly output of the program in the same file name as Program but with a changed .s extension, you can open it as any normal text file.

2. The second part here compiles your program for actual usage and generates an executable for your Program with a specified file name.

The program.c used above is the name of your program and output is the name of the executable you want to generate.

BTW It's my First post on StackOverFlow :-}

ColumnNames is a property of type List<String> so when you are setting up you need to pass a List<String> in the Returns call as an argument (or a func which return a List<String>)

But with this line you are trying to return just a string

input.SetupGet(x => x.ColumnNames).Returns(temp[0]);

which is causing the exception.

Change it to return whole list:

input.SetupGet(x => x.ColumnNames).Returns(temp);