Centering both horizontally and vertically

Actually, having the height and width in percents makes centering it even easier. You just offset the left and top by half of the area not occupied by the div.

So if you height is 40%, 100% - 40% = 60%. So you want 30% above and below. Then top: 30% does the trick.

See the example here: http://dabblet.com/gist/5957545

Centering only horizontally

Use inline-block. The other answer here will not work for IE 8 and below, however. You must use a CSS hack or conditional styles for that. Here is the hack version:

See the example here: http://dabblet.com/gist/5957591

.inlineblock { 
    display: inline-block;
    zoom: 1;
    display*: inline; /* ie hack */
}

EDIT

By using media queries you can combine two techniques to achive the effect you want. The only complication is height. You use a nested div to switch between % width and

http://dabblet.com/gist/5957676

@media (max-width: 1000px) {
    .center{}
    .center-inner{left:25%;top:25%;position:absolute;width:50%;height:300px;background:#f0f;text-align:center;max-width:500px;max-height:500px;}
}
@media (min-width: 1000px) {
    .center{left:50%;top:25%;position:absolute;}
    .center-inner{width:500px;height:100%;margin-left:-250px;height:300px;background:#f0f;text-align:center;max-width:500px;max-height:500px;}
}

In my case, IE11 seems to behave that way when there is some JS syntax error in the console (doesn't matter where exactly) and dataType: 'json' has no effect at all.

Maybe a dictionary-like class such as DoubleDict down below is what you want? You can use any one of the provided metaclasses in conjuction with DoubleDict or may avoid using any metaclass at all.

import functools
import threading

################################################################################

class _DDChecker(type):

    def __new__(cls, name, bases, classdict):
        for key, value in classdict.items():
            if key not in {'__new__', '__slots__', '_DoubleDict__dict_view'}:
                classdict[key] = cls._wrap(value)
        return super().__new__(cls, name, bases, classdict)

    @staticmethod
    def _wrap(function):
        @functools.wraps(function)
        def check(self, *args, **kwargs):
            value = function(self, *args, **kwargs)
            if self._DoubleDict__forward != \
               dict(map(reversed, self._DoubleDict__reverse.items())):
                raise RuntimeError('Forward & Reverse are not equivalent!')
            return value
        return check

################################################################################

class _DDAtomic(_DDChecker):

    def __new__(cls, name, bases, classdict):
        if not bases:
            classdict['__slots__'] += ('_DDAtomic__mutex',)
            classdict['__new__'] = cls._atomic_new
        return super().__new__(cls, name, bases, classdict)

    @staticmethod
    def _atomic_new(cls, iterable=(), **pairs):
        instance = object.__new__(cls, iterable, **pairs)
        instance.__mutex = threading.RLock()
        instance.clear()
        return instance

    @staticmethod
    def _wrap(function):
        @functools.wraps(function)
        def atomic(self, *args, **kwargs):
            with self.__mutex:
                return function(self, *args, **kwargs)
        return atomic

################################################################################

class _DDAtomicChecker(_DDAtomic):

    @staticmethod
    def _wrap(function):
        return _DDAtomic._wrap(_DDChecker._wrap(function))

################################################################################

class DoubleDict(metaclass=_DDAtomicChecker):

    __slots__ = '__forward', '__reverse'

    def __new__(cls, iterable=(), **pairs):
        instance = super().__new__(cls, iterable, **pairs)
        instance.clear()
        return instance

    def __init__(self, iterable=(), **pairs):
        self.update(iterable, **pairs)

    ########################################################################

    def __repr__(self):
        return repr(self.__forward)

    def __lt__(self, other):
        return self.__forward < other

    def __le__(self, other):
        return self.__forward <= other

    def __eq__(self, other):
        return self.__forward == other

    def __ne__(self, other):
        return self.__forward != other

    def __gt__(self, other):
        return self.__forward > other

    def __ge__(self, other):
        return self.__forward >= other

    def __len__(self):
        return len(self.__forward)

    def __getitem__(self, key):
        if key in self:
            return self.__forward[key]
        return self.__missing_key(key)

    def __setitem__(self, key, value):
        if self.in_values(value):
            del self[self.get_key(value)]
        self.__set_key_value(key, value)
        return value

    def __delitem__(self, key):
        self.pop(key)

    def __iter__(self):
        return iter(self.__forward)

    def __contains__(self, key):
        return key in self.__forward

    ########################################################################

    def clear(self):
        self.__forward = {}
        self.__reverse = {}

    def copy(self):
        return self.__class__(self.items())

    def del_value(self, value):
        self.pop_key(value)

    def get(self, key, default=None):
        return self[key] if key in self else default

    def get_key(self, value):
        if self.in_values(value):
            return self.__reverse[value]
        return self.__missing_value(value)

    def get_key_default(self, value, default=None):
        return self.get_key(value) if self.in_values(value) else default

    def in_values(self, value):
        return value in self.__reverse

    def items(self):
        return self.__dict_view('items', ((key, self[key]) for key in self))

    def iter_values(self):
        return iter(self.__reverse)

    def keys(self):
        return self.__dict_view('keys', self.__forward)

    def pop(self, key, *default):
        if len(default) > 1:
            raise TypeError('too many arguments')
        if key in self:
            value = self[key]
            self.__del_key_value(key, value)
            return value
        if default:
            return default[0]
        raise KeyError(key)

    def pop_key(self, value, *default):
        if len(default) > 1:
            raise TypeError('too many arguments')
        if self.in_values(value):
            key = self.get_key(value)
            self.__del_key_value(key, value)
            return key
        if default:
            return default[0]
        raise KeyError(value)

    def popitem(self):
        try:
            key = next(iter(self))
        except StopIteration:
            raise KeyError('popitem(): dictionary is empty')
        return key, self.pop(key)

    def set_key(self, value, key):
        if key in self:
            self.del_value(self[key])
        self.__set_key_value(key, value)
        return key

    def setdefault(self, key, default=None):
        if key not in self:
            self[key] = default
        return self[key]

    def setdefault_key(self, value, default=None):
        if not self.in_values(value):
            self.set_key(value, default)
        return self.get_key(value)

    def update(self, iterable=(), **pairs):
        for key, value in (((key, iterable[key]) for key in iterable.keys())
                           if hasattr(iterable, 'keys') else iterable):
            self[key] = value
        for key, value in pairs.items():
            self[key] = value

    def values(self):
        return self.__dict_view('values', self.__reverse)

    ########################################################################

    def __missing_key(self, key):
        if hasattr(self.__class__, '__missing__'):
            return self.__missing__(key)
        if not hasattr(self, 'default_factory') \
           or self.default_factory is None:
            raise KeyError(key)
        return self.__setitem__(key, self.default_factory())

    def __missing_value(self, value):
        if hasattr(self.__class__, '__missing_value__'):
            return self.__missing_value__(value)
        if not hasattr(self, 'default_key_factory') \
           or self.default_key_factory is None:
            raise KeyError(value)
        return self.set_key(value, self.default_key_factory())

    def __set_key_value(self, key, value):
        self.__forward[key] = value
        self.__reverse[value] = key

    def __del_key_value(self, key, value):
        del self.__forward[key]
        del self.__reverse[value]

    ########################################################################

    class __dict_view(frozenset):

        __slots__ = '__name'

        def __new__(cls, name, iterable=()):
            instance = super().__new__(cls, iterable)
            instance.__name = name
            return instance

        def __repr__(self):
            return 'dict_{}({})'.format(self.__name, list(self))

It is very bad style to define external interfaces in .c files. .

You should do this

a.h

    extern void doSomething (int    sig);

a.c

    void doSomething (int    sig)
    {
       ... do stuff 
    }

b.c

#include "a.h"
.....
signal(SIGNAL, doSomething); 

.

Here is how I did it with python 3.5.2:

from tkinter import *
root=Tk()
def retrieve_input():
    inputValue=textBox.get("1.0","end-1c")
    print(inputValue)

textBox=Text(root, height=2, width=10)
textBox.pack()
buttonCommit=Button(root, height=1, width=10, text="Commit", 
                    command=lambda: retrieve_input())
#command=lambda: retrieve_input() >>> just means do this when i press the button
buttonCommit.pack()

mainloop()

with that, when i typed "blah blah" in the text widget and pressed the button, whatever i typed got printed out. So i think that is the answer for storing user input from Text widget to variable.

My navigation bar was not showing, so I have used the following method in Swift 2 iOS 9

let viewController = self.storyboard?.instantiateViewControllerWithIdentifier("Dashboard") as! Dashboard

// Creating a navigation controller with viewController at the root of the navigation stack.
let navController = UINavigationController(rootViewController: viewController)
self.presentViewController(navController, animated:true, completion: nil)

Usually, IllegalStateException is used to indicate that "a method has been invoked at an illegal or inappropriate time." However, this doesn't look like a particularly typical use of it.

The code you've linked to shows that it can be thrown within that code at line 259 - but only after dumping a SQLException to standard output.

We can't tell what's wrong just from that exception - and better code would have used the original SQLException as a "cause" exception (or just let the original exception propagate up the stack) - but you should be able to see more details on standard output. Look at that information, and you should be able to see what caused the exception, and fix it.

Two-liner with new line:

for(int[] x: matrix)
            System.out.println(Arrays.toString(x));

One liner without new line:

System.out.println(Arrays.deepToString(matrix));

API Documentation

According to the Android developers guide for android.hardware.Camera, they state:

We recommend using the new android.hardware.camera2 API for new applications.

On the information page about android.hardware.camera2, (linked above), it is stated:

The android.hardware.camera2 package provides an interface to individual camera devices connected to an Android device. It replaces the deprecated Camera class.

The problem

When you check that documentation you'll find that the implementation of these 2 Camera API's are very different.

For example getting camera orientation on android.hardware.camera

@Override
public int getOrientation(final int cameraId) {
    Camera.CameraInfo info = new Camera.CameraInfo();
    Camera.getCameraInfo(cameraId, info);
    return info.orientation;
}

Versus android.hardware.camera2

@Override
public int getOrientation(final int cameraId) {
    try {
        CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
        String[] cameraIds = manager.getCameraIdList();
        CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraIds[cameraId]);
        return characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
    } catch (CameraAccessException e) {
        // TODO handle error properly or pass it on
        return 0;
    }
}

This makes it hard to switch from one to another and write code that can handle both implementations.

Note that in this single code example I already had to work around the fact that the olde camera API works with int primitives for camera IDs while the new one works with String objects. For this example I quickly fixed that by using the int as an index in the new API. If the camera's returned aren't always in the same order this will already cause issues. Alternative approach is to work with String objects and String representation of the old int cameraIDs which is probably safer.

One away around

Now to work around this huge difference you can implement an interface first and reference that interface in your code.

Here I'll list some code for that interface and the 2 implementations. You can limit the implementation to what you actually use of the camera API to limit the amount of work.

In the next section I'll quickly explain how to load one or another.

The interface wrapping all you need, to limit this example I only have 2 methods here.

public interface CameraSupport {
    CameraSupport open(int cameraId);
    int getOrientation(int cameraId);
}

Now have a class for the old camera hardware api:

@SuppressWarnings("deprecation")
public class CameraOld implements CameraSupport {

    private Camera camera;

    @Override
    public CameraSupport open(final int cameraId) {
        this.camera = Camera.open(cameraId);
        return this;
    }

    @Override
    public int getOrientation(final int cameraId) {
       Camera.CameraInfo info = new Camera.CameraInfo();
       Camera.getCameraInfo(cameraId, info);
       return info.orientation;
    }
}

And another one for the new hardware api:

public class CameraNew implements CameraSupport {

    private CameraDevice camera;
    private CameraManager manager;

    public CameraNew(final Context context) {
        this.manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
    }

    @Override
    public CameraSupport open(final int cameraId) {
        try {
            String[] cameraIds = manager.getCameraIdList();
            manager.openCamera(cameraIds[cameraId], new CameraDevice.StateCallback() {
                @Override
                public void onOpened(CameraDevice camera) {
                    CameraNew.this.camera = camera;
                }

                @Override
                public void onDisconnected(CameraDevice camera) {
                    CameraNew.this.camera = camera;
                    // TODO handle
                }

                @Override
                public void onError(CameraDevice camera, int error) {
                    CameraNew.this.camera = camera;
                    // TODO handle
                }
            }, null);
        } catch (Exception e) {
            // TODO handle
        }
        return this;
    }

    @Override
    public int getOrientation(final int cameraId) {
        try {
            String[] cameraIds = manager.getCameraIdList();
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraIds[cameraId]);
            return characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
        } catch (CameraAccessException e) {
            // TODO handle
            return 0;
        }
    }
}

Loading the proper API

Now to load either your CameraOld or CameraNew class you'll have to check the API level since CameraNew is only available from api level 21.

If you have dependency injection set up already you can do so in your module when providing the CameraSupport implementation. Example:

@Module public class CameraModule {

    @Provides
    CameraSupport provideCameraSupport(){
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            return new CameraNew(context);
        } else {
            return new CameraOld();
        }
    } 
}

If you don't use DI you can just make a utility or use Factory pattern to create the proper one. Important part is that the API level is checked.

Do not throw an HttpResponseException or return an HttpResponesMessage for errors - except if the intent is to end the request with that exact result.

HttpResponseException's are not handled the same as other exceptions. They are not caught in Exception Filters. They are not caught in the Exception Handler. They are a sly way to slip in an HttpResponseMessage while terminating the current code's execution flow.

Unless the code is infrastructure code relying on this special un-handling, avoid using the HttpResponseException type!

HttpResponseMessage's are not exceptions. They do not terminate the current code's execution flow. They can not be filtered as exceptions. They can not be logged as exceptions. They represent a valid result - even a 500 response is "a valid non-exception response"!

Make life simpler:

When there is an exceptional/error case, go ahead and throw a normal .NET exception - or a customized application exception type (not deriving from HttpResponseException) with desired 'http error/response' properties such as a status code - as per normal exception handling.

Use Exception Filters / Exception Handlers / Exception Loggers to do something appropriate with these exceptional cases: change/add status codes? add tracking identifiers? include stack traces? log?

By avoiding HttpResponseException the 'exceptional case' handling is made uniform and can be handled as part of the exposed pipeline! For example one can turn a 'NotFound' into a 404 and an 'ArgumentException' into a 400 and a 'NullReference' into a 500 easily and uniformly with application-level exceptions - while allowing extensibility to provide "basics" such as error logging.

This is a basic move one repo to new location. I use this sequence all te time. With --bare no source files will be seen.

Open Git Bash.
Create a bare clone of the repository.

git clone --bare https://github.com/exampleuser/old-repository.git

Mirror-push to the new repository.

cd old-repository.git

git push --mirror https://github.com/exampleuser/new-repository.git

Remove the temporary local repository you created in step 1.

cd ../
rm -rf old-repository.git

Why mirror? See documentation of git: https://git-scm.com/docs/git-push

--all Push all branches (i.e. refs under refs/heads/); cannot be used with other .

--mirror Instead of naming each ref to push, specifies that all refs under refs/ (which includes but is not limited to refs/heads/, refs/remotes/, and refs/tags/) be mirrored to the remote repository. Newly created local refs will be pushed to the remote end, locally updated refs will be force updated on the remote end, and deleted refs will be removed from the remote end. This is the default if the configuration option remote..mirror is set.

Using Scriptlets is a very old way and not recommended. If you want directly output something in your JSP pages, just use Expression Language (EL) along with JSTL.

There are also other options, such as using a templating engine such as Velocity, Freemarker, Thymeleaf, etc. But using plain JSP with EL and JSTL serves my purpose most of the time and it also seems the simplest for a beginner.

Also, take note that it is not a best practice to do business logic in the view layer. You should perform your business logic in the service layer, and pass the output result to your views through a controller.

I usually pass the RowIndex via CommandArgument and use it to retrieve the DataKey value I want.

On the Button:

CommandArgument='<%# DataBinder.Eval(Container, "RowIndex") %>'

On the Server Event

int rowIndex = int.Parse(e.CommandArgument.ToString());
string val = (string)this.grid.DataKeys[rowIndex]["myKey"];

Add a contextmenu to your form and then assign it in the control's properties under ContextMenuStrip. Hope this helps :).

Hope this helps:

ContextMenu cm = new ContextMenu();
cm.MenuItems.Add("Item 1");
cm.MenuItems.Add("Item 2");

pictureBox1.ContextMenu = cm;

If you need to clean out all data, it might be faster to recreate collection, e.g.

solrctl --zk localhost:2181/solr collection --delete <collectionName>
solrctl --zk localhost:2181/solr collection --create <collectionName> -s 1

Strings in java are objects, so when comparing with ==, you are comparing references, rather than values. The correct way is to use equals().

However, there is a way. If you want to compare String objects using the == operator, you can make use of the way the JVM copes with strings. For example:

String a = "aaa";
String b = "aaa";
boolean b = a == b;

b would be true. Why?

Because the JVM has a table of String constants. So whenever you use string literals (quotes "), the virtual machine returns the same objects, and therefore == returns true.

You can use the same "table" even with non-literal strings by using the intern() method. It returns the object that corresponds to the current string value from that table (or puts it there, if it is not). So:

String a = new String("aa");
String b = new String("aa");
boolean check1 = a == b; // false
boolean check1 = a.intern() == b.intern(); // true

It follows that for any two strings s and t, s.intern() == t.intern() is true if and only if s.equals(t) is true.

For simple types you can use "IndexOf" :

List<string> arr = new List<string>();
arr.Add("aaa");
arr.Add("bbb");
arr.Add("ccc");
int i = arr.IndexOf("bbb"); // RETURNS 1.

try

Sub save()
ActiveWorkbook.SaveAS Filename:="C:\-docs\cmat\Desktop\New folder\" & Range("C5").Text & chr(32) & Range("C8").Text &".xls", FileFormat:= _
  xlNormal, Password:="", WriteResPassword:="", ReadOnlyRecommended:=False _
 , CreateBackup:=False
End Sub

If you want to save the workbook with the macros use the below code

Sub save()
ActiveWorkbook.SaveAs Filename:="C:\Users\" & Environ$("username") & _
    "\Desktop\" & Range("C5").Text & Chr(32) & Range("C8").Text & ".xlsm", FileFormat:= _
    xlOpenXMLWorkbookMacroEnabled, Password:=vbNullString, WriteResPassword:=vbNullString, _
    ReadOnlyRecommended:=False, CreateBackup:=False
End Sub

if you want to save workbook with no macros and no pop-up use this

Sub save()
    Application.DisplayAlerts = False
    ActiveWorkbook.SaveAs Filename:="C:\Users\" & Environ$("username") & _
    "\Desktop\" & Range("C5").Text & Chr(32) & Range("C8").Text & ".xls", _
    FileFormat:=xlOpenXMLWorkbook, CreateBackup:=False
    Application.DisplayAlerts = True
End Sub

Could you use online services like this ?

Update: (as per request)

Google chrome will do this also http://cristian-radulescu.ro/article/pretty-print-javascript-with-google-chrome.html

May be you want this (oop in javascript)

function box(color)
{
    this.color=color;
}

var box1=new box('red');    
var box2=new box('white');    

DEMO.

For more information.

You can set a bucket policy as detailed in this blog post:

http://ariejan.net/2010/12/24/public-readable-amazon-s3-bucket-policy/

As per @robbyt's suggestion, create a bucket policy with the following JSON:

{
  "Version": "2008-10-17",
  "Statement": [{
    "Sid": "AllowPublicRead",
    "Effect": "Allow",
    "Principal": { "AWS": "*" },
    "Action": ["s3:GetObject"],
    "Resource": ["arn:aws:s3:::bucket/*" ]
  }]
}

Important: replace bucket in the Resource line with the name of your bucket.

Maybe it is the case that you have your path in couple of lines, you used enter to make it? If so, then part of you paths might look like that "/\nData/" instead of "/Data/", which causes the problem. Just set it to be in one line and issue is solved!

The dict.items iterates over the key-value pairs of a dictionary. Therefore for key, value in dictionary.items() will loop over each pair. This is documented information and you can check it out in the official web page, or even easier, open a python console and type help(dict.items). And now, just as an example:

>>> d = {'hello': 34, 'world': 2999}
>>> for key, value in d.items():
...   print key, value
...
world 2999
hello 34

The AttributeError is an exception thrown when an object does not have the attribute you tried to access. The class dict does not have any predictors attribute (now you know where to check it :) ), and therefore it complains when you try to access it. As easy as that.

You can use toFixed() to do that

var twoPlacedFloat = parseFloat(yourString).toFixed(2)

Even easier you can just use Arrays, so you will get a String with the values of the array separated by a ","

String concat = Arrays.toString(myArray);

so you will end up with this: concat = "[a,b,c]"

Update

You can then get rid of the brackets using a sub-string as suggested by Jeff

concat = concat.substring(1, concat.length() -1);

so you end up with concat = "a,b,c"

if you want to use Kotlin:

 val concat = myArray.joinToString(separator = ",") //"a,b,c"

I've been using Chilkat's native SFTP library ( http://www.chilkatsoft.com/ssh-sftp-component.asp ) for a couple of months now and it's working great. Been using it in a nightly job to download large files and do private key authentication. Only problem that I had was getting the 64bit version to work on windows server 2008, I needed to install vcredist_x64.exe ( http://www.microsoft.com/download/en/details.aspx?id=14632 ) on my server.

I found that when I made my binding more specific, it began to work on iOS. I had:

$(document).on('click tap', 'span.clickable', function(e){ ... });

When I changed it to:

$("div.content").on('click tap', 'span.clickable', function(e){ ... });

iOS began responding.

In Python inside there is a good use of container called a named tuple, it can be used to create a definition of class and has all the features of the original tuple.

Using named tuple will be directly applied to the default class template to generate a simple class, this method allows a lot of code to improve readability and it is also very convenient when defining a class.

child: Container(
   child: isFile == true ? 
            Image.network(pathfile, width: 300, height: 200, fit: BoxFit.cover) : 
            Text(message.subject.toString(), style: TextStyle(color: Colors.white),
      ),
),

This line:

private dynamic defaultReminder = 
                          reminder.TimeSpanText[TimeSpan.FromMinutes(15)];

You cannot use an instance variable to initialize another instance variable. Why? Because the compiler can rearrange these - there is no guarantee that reminder will be initialized before defaultReminder, so the above line might throw a NullReferenceException.

Instead, just use:

private dynamic defaultReminder = TimeSpan.FromMinutes(15);

Alternatively, set up the value in the constructor:

private dynamic defaultReminder;

public Reminders()
{
    defaultReminder = reminder.TimeSpanText[TimeSpan.FromMinutes(15)]; 
}

There are more details about this compiler error on MSDN - Compiler Error CS0236.

mysql-python NOT support Python3, you may need:

sudo pip3 install mysqlclient

Also, check this post for more alternatives.

Try:

adb shell pidof <myPackageName>

Standard output will be empty if the Application is not running. Otherwise, it will output the PID.

You can view these with Process Explorer from sysinternals. Use the "Find -> Find Handle or DLL..." option and enter the pattern "\Device\NamedPipe\". It will show you which processes have which pipes open.

If you're using HTML5 you don't need to go to any great lengths to perform validation. Just use -

<input type="number" step="any" />

The step attribute allows the decimal point to be valid.

with open('D:\\file.txt', 'r') as f1:
    lines = f1.readlines()
lines = [s[:-1] for s in lines]

JAVASCRIPT CODE:

<script>

    function getUrlVars()
{
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for(var i = 0; i < hashes.length; i++)
    {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}

var user = getUrlVars()["user"];
var pass = getUrlVars()["pass"];
var sub  = getUrlVars()["sub"];
</script>

<script>
    var myApp = angular.module('myApp',[]);

myApp.controller('dropdownCtrl', ['$scope','$window','$http', function($scope, $window, $http) {

 $http.get('http://dummy.com/app/chapter.php?user='+user+'&pass='+pass)

     .then(function (response) {$scope.names = response.data.admin;});
    $scope.names = [];

        $http.get('http://dummy.com/app/chapter.php?user='+user+'&pass='+pass+'&sub='+sub)

            .then(function (response) {$scope.chapter = response.data.chp;});
           $scope.chapter = [];

};


}]);
    </script>

HTML:

<div ng-controller="dropdownCtrl">
<div ng-repeat="a in chapter">
<a href="topic.html?ch={{a.chapter}}" onClick="location.href=this.href+'&user='+user+'&pass='+pass+'&sub='+sub;return false;">{{a.chapter}}</a>
</div>

The git interaction library part of StGit is actually pretty good. However, it isn't broken out as a separate package but if there is sufficient interest, I'm sure that can be fixed.

It has very nice abstractions for representing commits, trees etc, and for creating new commits and trees.

Half a decade later we have a built-in way for it! For modern browsers I would use:

const tz = Intl.DateTimeFormat().resolvedOptions().timeZone;_x000D_
console.log(tz);

This returns a IANA timezone string, but not the offset. Learn more at the MDN reference.

Compatibility table - as of March 2019, works for 90% of the browsers in use globally. Doesn't work on Internet Explorer.

Ok, years later using VS 2017 .NET Core 2.2 Razor Pages I feel this answer might help someone. If it was a snake it would have bit me. I was throwing stuff around, changing names, renaming Models, and all of a sudden I got this error:

Error CS0246 The type or namespace name 'UploadFileModel' could not be found (are you missing a using directive or an assembly reference?)

This was underlined in red in my .chstml Razor Page. (not underlined after fix):

@page
@model UploadFileModel

So, finally, and luckily, I found the code from someone else that I had originally used, and low and behold, the namespace did not include the .cshtml file name!!!

Here is my bad dummy error spank myself with the page name in the namespace:

namespace OESAC.Pages.UploadFile
{
    public class UploadFileModel : PageModel
    {

What my original code had and all I had to do was delete the page name from the namespace, UploadFile:

namespace OESAC.Pages
{
    public class UploadFileModel : PageModel
    {

And low and behold, all the errors disappeared!! Silly me. But you know, MS has made this .NET C# MVC stuff really confusing for us non-computer scientists. I am constantly tripping on my shoelaces trying to figure out model names, page names, and syntax to use them. It shouldn't be this hard. Oh well. I hope error and solution helps someone. The error was right, there is no Namespace named "UploadFileModel" haha.

That also happened to me on a recreated directory, the directory is the same but to make it work again just run:

cd .

Write and run the following code in the Immediate Window

?cells(,"type the column name here").column

For example ?cells(,"BYL").column will return 2014. The code is case-insensitive, hence you may write ?cells(,"byl").column and the output will still be the same.

If Java is installed on the target machine, there is no need to create an .exe file. A .jar file should be sufficient.

This is very simple you are trying to convert an integer to a list object !!! of course it will fail and it should ...

To demonstrate/prove this to you by using the example you provided ...just use type function for each case as below and the results will speak for itself !

>>> type(cow)
<class 'range'>
>>> 
>>> type(cow[0])
<class 'int'>
>>> 
>>> type(0)
<class 'int'>
>>> 
>>> >>> list(0)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable
>>> 

sudo apt-get install libpng-dev libjpeg8-dev libfreetype6-dev

worked for me on Ubuntu 14.04

Why do you want to re-invent the wheel, when you already have something to do your work. Map.keySet() method gives you a Set of all the keys in the Map.

Map<String, Integer> map = new HashMap<String, Integer>();

for (String key: map.keySet()) {
    System.out.println("key : " + key);
    System.out.println("value : " + map.get(key));
}

Also, your 1st for-loop looks odd to me: -

   for(int k = 0; k < list.size(); k++){
            map = (HashMap)list.get(k);
   }

You are iterating over your list, and assigning each element to the same reference - map, which will overwrite all the previous values.. All you will be having is the last map in your list.

EDIT: -

You can also use entrySet if you want both key and value for your map. That would be better bet for you: -

    Map<String, Integer> map = new HashMap<String, Integer>();

    for(Entry<String, Integer> entry: map.entrySet()) {
        System.out.println(entry.getKey());
        System.out.println(entry.getValue());
    }

P.S.: -
Your code looks jumbled to me. I would suggest, keep that code aside, and think about your design one more time. For now, as the code stands, it is very difficult to understand what its trying to do.

I was dealing with this issue today, and I knew that I had something encoded as a bytes object that I was trying to serialize as json with json.dump(my_json_object, write_to_file.json). my_json_object in this case was a very large json object that I had created, so I had several dicts, lists, and strings to look at to find what was still in bytes format.

The way I ended up solving it: the write_to_file.json will have everything up to the bytes object that is causing the issue.

In my particular case this was a line obtained through

for line in text:
    json_object['line'] = line.strip()

I solved by first finding this error with the help of the write_to_file.json, then by correcting it to:

for line in text:
    json_object['line'] = line.strip().decode()

A (dirty) possible solution is by using patterns,

here is an example with an inside stroked triangle :

https://jsfiddle.net/qr3p7php/5/

<style>
#triangle1{
  fill: #0F0;
  fill-opacity: 0.3;
  stroke: #000;
  stroke-opacity: 0.5;
  stroke-width: 20;
}
#triangle2{
  stroke: #f00;
  stroke-opacity: 1;
  stroke-width: 1;
}    
</style>

<svg height="210" width="400" >
    <pattern id="fagl" patternUnits="objectBoundingBox" width="2" height="1" x="-50%">
        <path id="triangle1" d="M150 0 L75 200 L225 200 Z">
    </pattern>    
    <path id="triangle2" d="M150 0 L75 200 L225 200 Z" fill="url(#fagl)"/>
</svg>

If the to-be-updated component is not inside the same NamingContainer component (ui:repeat, h:form, h:dataTable, etc), then you need to specify the "absolute" client ID. Prefix with : (the default NamingContainer separator character) to start from root.

<p:ajax process="@this" update="count :subTotal"/>

To be sure, check the client ID of the subTotal component in the generated HTML for the actual value. If it's inside for example a h:form as well, then it's prefixed with its client ID as well and you would need to fix it accordingly.

<p:ajax process="@this" update="count :formId:subTotal"/>

Space separation of IDs is more recommended as <f:ajax> doesn't support comma separation and starters would otherwise get confused.

in a Microsoft SQL Server you can use this:

declare @sql2 nvarchar(2000)
        set @sql2  ='
use ?
if (  db_name(db_id()) not in (''master'',''tempdb'',''model'',''msdb'',''SSISDB'')  )
begin   

select
    db_name() as db,
    SS.name as schemaname,
    SO.name tablename,
    SC.name columnname,
    ST.name type,
    case when ST.name in (''nvarchar'', ''nchar'')
        then convert(varchar(10), ( SC.max_length / 2 ))
        when ST.name in (''char'', ''varchar'')
        then convert(varchar(10), SC.max_length)
        else null
    end as length,
    case when SC.is_nullable = 0 then ''No'' when SC.is_nullable = 1 then ''Yes'' else null end as nullable,
    isnull(SC.column_id,0) as col_number
from sys.objects                  SO
join sys.schemas                  SS
    on SS.schema_id = SO.schema_id
join sys.columns             SC
on SO.object_id     = SC.object_id
left join sys.types               ST
    on SC.user_type_id = ST.user_type_id and SC.system_type_id = ST.system_type_id
    where SO.is_ms_shipped = 0 
end
'

exec sp_msforeachdb @command1 = @sql2

this shows you all tables and columns ( and their definition ) from all userdefined databases.

Swift 4/5 example

button.target = self
button.action = #selector(buttonClicked(sender:))

@objc func buttonClicked(sender: UIBarButtonItem) {
        
}

toString() only returns the exception name and the optional message. I would suggest calling

exception.printStackTrace()

to dump the message, or if you need the gory details:

 StackTraceElement[] trace = exception.getStackTrace()

Since TR elements wrap the TD elements, what you're actually clicking is the TD (it then bubbles up to the TR) so you can simplify your selector. Getting the values is easier this way too, the clicked TD is this, the TR that wraps it is this.parent

Change your javascript code to the following:

$(document).ready(function() {
    $(".dataGrid td").click(function() {
        alert("You clicked my <td>!" + $(this).html() + 
              "My TR is:" + $(this).parent("tr").html());
        //get <td> element values here!!??
    });
});?

Brian Ramsay’s code, de-pseudofied:

- (NSString*)formattedStringForDuration:(NSTimeInterval)duration
{
    NSInteger minutes = floor(duration/60);
    NSInteger seconds = round(duration - minutes * 60);
    return [NSString stringWithFormat:@"%d:%02d", minutes, seconds];
}

This is a slightly different answer to one below that worked for me:

public static validate(control: FormControl): { whitespace: boolean } {_x000D_
    const valueNoWhiteSpace = control.value.trim();_x000D_
    const isValid = valueNoWhiteSpace === control.value;_x000D_
    return isValid ? null : { whitespace: true };_x000D_
}

The rule is:

NaN != NaN

The problem of isNaN() function is that it may return unexpected result in some cases:

isNaN('Hello')      //true
isNaN('2005/12/12') //true
isNaN(undefined)    //true
isNaN('NaN')        //true
isNaN(NaN)          //true
isNaN(0 / 0)        //true

A better way to check if the value is really NaN is:

function is_nan(value) {
    return value != value
}

is_nan(parseFloat("geoff"))

This could be a problem if you are using a custom 'Settings.xml', with a different <localRepository> configured in it.

Eclipse will be using the default installation of MAVEN, and will be using the default location for the User to look for the local Maven repository, which on Linux systems would be '/home/${USER}/.m2/'

Eclipse can be easily configured to use the customized 'Settings.xml', by doing the following: Goto -> Window -> Preferences -> Select 'Maven' -> Select 'User Settings'

1. Under 'User Settings', select the custom 'Settings.xml' file, for 'User Settings' by clicking 'Browse' and selecting the customized 'Settings.xml'.
2. Click on 'Update Settings', if the 'Local Repository' Textbox does not show the custom location from the file above, just key in the location and click 'Reindex'.
3. Click 'OK'

After this, you could proceed to select your project from the 'Project Explorer', right click, Select 'Maven' > 'Update Project'. Make sure that your project is selected (ticked) in the Window, and click 'OK'.

This should help to resolve the issue, if using custom 'Settings.xml' for Maven.

Hope it helps.

Use:

string.replace(r"C:\Users\Josh\Desktop\20130216", "\\", "\\")

Escape the \ character.

Just be sure that you have include python to windows PATH variable, then run python -m ensurepip

I looked at a lot of these solutions and didn't like many of them. Mostly because the annoying step of having to identify your known hosts. That and JSCH is at a ridiculously low level relative to the scp command.

I found a library that doesn't require this but it's bundled up and used as a command line tool. https://code.google.com/p/scp-java-client/

I looked through the source code and discovered how to use it without the command line. Here's an example of uploading:

    uk.co.marcoratto.scp.SCP scp = new uk.co.marcoratto.scp.SCP(new uk.co.marcoratto.scp.listeners.SCPListenerPrintStream());
    scp.setUsername("root");
    scp.setPassword("blah");
    scp.setTrust(true);
    scp.setFromUri(file.getAbsolutePath());
    scp.setToUri("root@host:/path/on/remote");
    scp.execute();

The biggest downside is that it's not in a maven repo (that I could find). But, the ease of use is worth it to me.

For variables describing distances, you would use \newlength (and manipulate the values with \setlength, \addlength, \settoheight, \settolength and \settodepth).

Similarly you have access to \newcounter for things like section and figure numbers which should increment throughout the document. I've used this one in the past to provide code samples that were numbered separatly of other figures...

Also of note is \makebox which allows you to store a bit of laid-out document for later re-use (and for use with \settolength...).

rem This is the command line version
cscript "C:\Users\guest\Desktop\123\MyScript.vbs"

OR

rem This is the windowed version
wscript "C:\Users\guest\Desktop\123\MyScript.vbs"

You can also add the option //e:vbscript to make sure the scripting engine will recognize your script as a vbscript.

Windows/DOS batch files doesn't require escaping \ like *nix.

You can still use "C:\Users\guest\Desktop\123\MyScript.vbs", but this requires the user has *.vbs associated to wscript.

In Visual Studio 2010 the default browser gets reset often (just about every time an IDE setting is changed or even after restarting Visual Studio). There is now a default browser selector extension for 2010 to help combat this:

!!!Update!!! It appears that the WoVS Default Browser Switcher is no longer available for free according to @Cory. You might try Default Browser Changer instead but I have not tested it. If you already have the WoVS plugin I would recommend backing it up so that you can install it later.

The following solution may no longer work:

WoVS Default Browser Switcher: http://visualstudiogallery.msdn.microsoft.com/en-us/bb424812-f742-41ef-974a-cdac607df921

Edit: This works with ASP.NET MVC applications as well.

Note: One negative side effect of installing this extension is that it seems to nag to be updated about once a month. This has caused some to uninstall it because, to them, its more bothersome then the problem it fixes. Regardless it is easily updated through the extension manager and I still find it very useful.

You will see the following error when starting VS:

The Default Browser Switcher beta bits have expired. Please use the Extension Manager or visit the VS Gallery to download updated bits.

There is one more way, i got the same situation in my project. i solved this way

List<Object[]> list = HQL.list();

In above hibernate query language i know at which place what are my objects so what i did is :

for(Object[] obj : list){
String val = String.valueOf(obj[1]);
int code =Integer.parseint(String.valueof(obj[0]));
}

this way you can get the mixed objects with ease, but you should know in advance at which place what value you are getting or you can just check by printing the values to know. sorry for the bad english I hope this help

Change the submit button to a normal button and handle submitting in its onClick event.

As far as I know, there is no way to tell if the form was submitted by Enter Key or the submit button.

use test
go
alter proc restore_mdf_ldf_main (@database varchar(100), @mdf varchar(100),@ldf varchar(100),@filename varchar(200))
as
begin 
begin try
RESTORE DATABASE @database FROM DISK = @FileName
with norecovery,
MOVE @mdf TO 'D:\sql samples\sample.mdf',
MOVE @ldf TO 'D:\sql samples\sample.ldf'
end try
begin catch
SELECT ERROR_MESSAGE() AS ErrorMessage;
print 'Restoring of the database ' + @database + ' failed';
end catch
end

exec restore_mdf_ldf_main product,product,product_log,'c:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Backup\product.bak'

There are two ways to go about doing this.

1. Create a state in the constructor that contains the text input. Attach an onChange event to the input box that updates state each time. Then onClick you could just alert the state object.

2. handleClick: function() { alert(this.refs.myInput.value); },

The response headers in case of cors remain hidden. You need to add in response headers to direct the Angular to expose headers to javascript.

// From server response headers :
header("Access-Control-Allow-Methods: GET, POST, OPTIONS");
header("Access-Control-Allow-Headers: Origin, X-Requested-With, 
Content-Type, Accept, Authorization, X-Custom-header");
header("Access-Control-Expose-Headers: X-Custom-header");
header("X-Custom-header: $some data");

var data = res.headers.get('X-Custom-header');

Source : https://github.com/angular/angular/issues/5237

There's a jQuery selector for that:

// Get all form fields that are hidden
var hidden_fields = $( this ).find( 'input:hidden' );

// Filter those which have a specific type
hidden_fields.attr( 'text' );

Will give you all hidden input fields and filter by those with a specific type="".

Use this code, Working properly

CREATE PROCEDURE [dbo].[sp_delete_item]
@ItemId int = 0
@status bit OUT

AS
Begin
 DECLARE @cnt int;
 DECLARE @status int =0;
 SET NOCOUNT OFF
 SELECT @cnt =COUNT(Id) from ItemTransaction where ItemId = @ItemId
 if(@cnt = 1)
   Begin
     return @status;
   End
 else
  Begin
   SET @status =1;
    return @status;
 End
END

Execute SP

DECLARE @statuss bit;
EXECUTE  [dbo].[sp_delete_item] 6, @statuss output;
PRINT @statuss;

Install Fake Sendmail (download sendmail.zip). Then configure C:\wamp\sendmail\sendmail.ini:

smtp_server=smtp.gmail.com
smtp_port=465
[email protected]
auth_password=your_password

The above will work against a Gmail account. And then configure php.ini:

sendmail_path = "C:\wamp\sendmail\sendmail.exe -t"

Now, restart Apache, and that is basically all you need to do.

Documentation says:

DISTINCT ON ( expression [, ...] ) keeps only the first row of each set of rows where the given expressions evaluate to equal. [...] Note that the "first row" of each set is unpredictable unless ORDER BY is used to ensure that the desired row appears first. [...] The DISTINCT ON expression(s) must match the leftmost ORDER BY expression(s).

Official documentation

So you'll have to add the address_id to the order by.

Alternatively, if you're looking for the full row that contains the most recent purchased product for each address_id and that result sorted by purchased_at then you're trying to solve a greatest N per group problem which can be solved by the following approaches:

The general solution that should work in most DBMSs:

SELECT t1.* FROM purchases t1
JOIN (
    SELECT address_id, max(purchased_at) max_purchased_at
    FROM purchases
    WHERE product_id = 1
    GROUP BY address_id
) t2
ON t1.address_id = t2.address_id AND t1.purchased_at = t2.max_purchased_at
ORDER BY t1.purchased_at DESC

A more PostgreSQL-oriented solution based on @hkf's answer:

SELECT * FROM (
  SELECT DISTINCT ON (address_id) *
  FROM purchases 
  WHERE product_id = 1
  ORDER BY address_id, purchased_at DESC
) t
ORDER BY purchased_at DESC

Problem clarified, extended and solved here: Selecting rows ordered by some column and distinct on another

There is no IF <arg> OR or ELIF or ELSE IF in Batch, however...

Try nesting the other IF's inside the ELSE of the previous IF.

IF <arg> (
    ....
) ELSE (
    IF <arg> (
        ......
    ) ELSE (
        IF <arg> (
            ....
        ) ELSE (
    )
)

Here is my object inspector that is more readable. Because the code takes to long to write down here you can download it at http://etto-aa-js.googlecode.com/svn/trunk/inspector.js

Use like this :

document.write(inspect(object));

Generally it's easiest to use DESCRIBE.

DESCRIBE TABLE MYSCHEMA.TABLE

or

DESCRIBE INDEXES FOR MYSCHEMA.TABLE SHOW DETAIL

etc.

See the documentation: DESCRIBE command

It's treating the string application as your URL.
This means your shell isn't parsing the command correctly.
My guess is that you copied the string from somewhere, and that when you pasted it, you got some characters that looked like regular quotes, but weren't.
Try retyping the command; you'll only get valid characters from your keyboard. I bet you'll get a much different result from what looks like the same query. As this is probably a shell problem and not a 'curl' problem (you didn't build cURL yourself from source, did you?), it might be good to mention whether you're on Linux/Windows/etc.

#include <iostream>
#include <string>

int main()
{
   std::string a;
   std::getline(std::cin,a);
   for(std::string::size_type i = 0; i < a.size(); ++i)
   {
       if(a[i] == ' ')
          std::cout<<"It is a space!!!"<<std::endl;
   }
   return 0;
}

NuPKG files are just zip files, so anything that can process a zip file should be able to process a nupkg file, i.e, 7zip.

On Mac brew install postgres THEN bundle install

Add bellow line in build.gradle:

compile 'com.commit451:PhotoView:1.2.4'

or

compile 'com.github.chrisbanes:PhotoView:1.3.0'

In Java file:

PhotoViewAttacher photoAttacher;
photoAttacher= new PhotoViewAttacher(Your_Image_View);
photoAttacher.update();

Here is one case that caught me out, using a global as a default value of a parameter.

globVar = None    # initialize value of global variable

def func(param = globVar):   # use globVar as default value for param
    print 'param =', param, 'globVar =', globVar  # display values

def test():
    global globVar
    globVar = 42  # change value of global
    func()

test()
=========
output: param = None, globVar = 42

I had expected param to have a value of 42. Surprise. Python 2.7 evaluated the value of globVar when it first parsed the function func. Changing the value of globVar did not affect the default value assigned to param. Delaying the evaluation, as in the following, worked as I needed it to.

def func(param = eval('globVar')):       # this seems to work
    print 'param =', param, 'globVar =', globVar  # display values

Or, if you want to be safe,

def func(param = None)):
    if param == None:
        param = globVar
    print 'param =', param, 'globVar =', globVar  # display values

I think this should be a simple example:

$('#item1 span').text();

or

$('#item1 span').html();

falsetru's solution is nice, but has a little bug:

Suppose original 'id' length was larger than 5 characters. When we then dump with the new 'id' (134 with only 3 characters) the length of the string being written from position 0 in file is shorter than the original length. Extra chars (such as '}') left in file from the original content.

I solved that by replacing the original file.

import json
import os

filename = 'data.json'
with open(filename, 'r') as f:
    data = json.load(f)
    data['id'] = 134 # <--- add `id` value.

os.remove(filename)
with open(filename, 'w') as f:
    json.dump(data, f, indent=4)

Well - it would be sort of difficult to store your database configuration data in a database - don't ya think?

But really, this is a pretty heavily opinionated question because any style works really and it's all a matter of preference. Personally, I'd go for a configuration variable rather than constants - generally because I don't like things in the global space unless necessary. None of the functions in my codebase should be able to easily access my database password (except my database connection logic) - so I'd use it there and then likely destroy it.

Edit: to answer your comment - none of the parsing mechanisms would be the fastest (ini, json, etc) - but they're also not the parts of your application that you'd really need to focus on optimizing since the speed difference would be negligible on such small files.

//this is only good in .NET 4
//read your file:
List<string> ReadFile = File.ReadAllLines(@"C:\TEMP\FILE.TXT").ToList();

//manipulate data here
foreach(string line in ReadFile)
{
    //do something here
}

//write back to your file:
File.WriteAllLines(@"C:\TEMP\FILE2.TXT", ReadFile);

404 with Content/Body

res.writeHead(404, {'Content-Type': 'text/plain'});                    // <- redirect
res.write("Looked everywhere, but couldn't find that page at all!\n"); // <- content!
res.end();                                                             // that's all!

Redirect to Https

res.writeHead(302, {'Location': 'https://example.com' + req.url});
res.end();

Just consider where you use this (e.g. only for http request), so you don't get endless redirects ;-)

function htmlEscape(str) {
    var stringval="";
    $.each(str, function (i, element) {
        alert(element);
        stringval += element
            .replace(/&/g, '&')
            .replace(/"/g, '"')
            .replace(/'/g, ''')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(' ', '-')
            .replace('?', '-')
            .replace(':', '-')
            .replace('|', '-')
            .replace('.', '-');
    });
    alert(stringval);
    return String(stringval);
}

The way I cleared my form input values was to add an id to my form tag. Then when I handleSubmit I call this.clearForm()

In the clearForm function I then use document.getElementById("myForm").reset();

import React, {Component } from 'react';
import './App.css';
import Button from './components/Button';
import Input from './components/Input';

class App extends Component {  
  state = {
    item: "", 
    list: []
}

componentDidMount() {
    this.clearForm();
  }

handleFormSubmit = event => {
   this.clearForm()
   event.preventDefault()
   const item = this.state.item

    this.setState ({
        list: [...this.state.list, item],
            })

}

handleInputChange = event => {
  this.setState ({
    item: event.target.value 
  })
}

clearForm = () => {
  document.getElementById("myForm").reset(); 
  this.setState({
    item: ""
  })
}



  render() {
    return (
      <form id="myForm">
      <Input

           name="textinfo"
           onChange={this.handleInputChange}
           value={this.state.item}
      />
      <Button
        onClick={this.handleFormSubmit}
      >  </Button>
      </form>
    );
  }
}

export default App;

This helped me at the end:

Quick guide:

• Download Google USB Driver

• Connect your device with Android Debugging enabled to your PC

• Open Device Manager of Windows from System Properties.

• Your device should appear under Other devices listed as something like Android ADB Interface or 'Android Phone' or similar. Right-click that and click on Update Driver Software...

• Select Browse my computer for driver software

• Select Let me pick from a list of device drivers on my computer

• Double-click Show all devices

• Press the Have disk button

• Browse and navigate to [wherever your SDK has been installed]\google-usb_driver and select android_winusb.inf

• Select Android ADB Interface from the list of device types.

• Press the Yes button

• Press the Install button

• Press the Close button

Now you've got the ADB driver set up correctly. Reconnect your device if it doesn't recognize it already.

iframe is also vulnerable to Cross Frame Scripting:

• https://www.owasp.org/index.php/Cross_Frame_Scripting

A node is the generic name for any type of object in the DOM hierarchy. A node could be one of the built-in DOM elements such as document or document.body, it could be an HTML tag specified in the HTML such as <input> or <p> or it could be a text node that is created by the system to hold a block of text inside another element. So, in a nutshell, a node is any DOM object.

An element is one specific type of node as there are many other types of nodes (text nodes, comment nodes, document nodes, etc...).

The DOM consists of a hierarchy of nodes where each node can have a parent, a list of child nodes and a nextSibling and previousSibling. That structure forms a tree-like hierarchy. The document node has the html node as its child. The html node has its list of child nodes (the head node and the body node). The body node would have its list of child nodes (the top level elements in your HTML page) and so on.

So, a nodeList is simply an array-like list of nodes.

An element is a specific type of node, one that can be directly specified in the HTML with an HTML tag and can have properties like an id or a class. can have children, etc... There are other types of nodes such as comment nodes, text nodes, etc... with different characteristics. Each node has a property .nodeType which reports what type of node it is. You can see the various types of nodes here (diagram from MDN):

You can see an ELEMENT_NODE is one particular type of node where the nodeType property has a value of 1.

So document.getElementById("test") can only return one node and it's guaranteed to be an element (a specific type of node). Because of that it just returns the element rather than a list.

Since document.getElementsByClassName("para") can return more than one object, the designers chose to return a nodeList because that's the data type they created for a list of more than one node. Since these can only be elements (only elements typically have a class name), it's technically a nodeList that only has nodes of type element in it and the designers could have made a differently named collection that was an elementList, but they chose to use just one type of collection whether it had only elements in it or not.

EDIT: HTML5 defines an HTMLCollection which is a list of HTML Elements (not any node, only Elements). A number of properties or methods in HTML5 now return an HTMLCollection. While it is very similar in interface to a nodeList, a distinction is now made in that it only contains Elements, not any type of node.

The distinction between a nodeList and an HTMLCollection has little impact on how you use one (as far as I can tell), but the designers of HTML5 have now made that distinction.

For example, the element.children property returns a live HTMLCollection.

In general, utf8_general_ci is faster than utf8_unicode_ci, but less correct.

Here is the difference:

For any Unicode character set, operations performed using the _general_ci collation are faster than those for the _unicode_ci collation. For example, comparisons for the utf8_general_ci collation are faster, but slightly less correct, than comparisons for utf8_unicode_ci. The reason for this is that utf8_unicode_ci supports mappings such as expansions; that is, when one character compares as equal to combinations of other characters. For example, in German and some other languages “ß” is equal to “ss”. utf8_unicode_ci also supports contractions and ignorable characters. utf8_general_ci is a legacy collation that does not support expansions, contractions, or ignorable characters. It can make only one-to-one comparisons between characters.

Quoted from: http://dev.mysql.com/doc/refman/5.0/en/charset-unicode-sets.html

For more detailed explanation, please read the following post from MySQL forums: http://forums.mysql.com/read.php?103,187048,188748

As for utf8_bin: Both utf8_general_ci and utf8_unicode_ci perform case-insensitive comparison. In constrast, utf8_bin is case-sensitive (among other differences), because it compares the binary values of the characters.

We can do this by css3 too. Try this:

.halfsize {
    -moz-transform:scale(0.5);
    -webkit-transform:scale(0.5);
    transform:scale(0.5);
}

<img class="halfsize" src="image4.jpg">

• subjected to browser compatibility

Based on the @MixerOID response, here is my final solution as a component (maybe I create a library). I also support FormArray's:

import {Component, ElementRef, Input, OnInit} from '@angular/core';
import {FormArray, FormGroup, ValidationErrors} from '@angular/forms';
import {TranslateService} from '@ngx-translate/core';

interface AllValidationErrors {
  controlName: string;
  errorName: string;
  errorValue: any;
}

@Component({
  selector: 'app-form-errors',
  templateUrl: './form-errors.component.html',
  styleUrls: ['./form-errors.component.scss']
})
export class FormErrorsComponent implements OnInit {

  @Input() form: FormGroup;
  @Input() formRef: ElementRef;
  @Input() messages: Array<any>;

  private errors: AllValidationErrors[];

  constructor(
    private translateService: TranslateService
  ) {
    this.errors = [];
    this.messages = [];
  }

  ngOnInit() {
    this.form.valueChanges.subscribe(() => {
      this.errors = [];
      this.calculateErrors(this.form);
    });

    this.calculateErrors(this.form);
  }

  calculateErrors(form: FormGroup | FormArray) {
    Object.keys(form.controls).forEach(field => {
      const control = form.get(field);
      if (control instanceof FormGroup || control instanceof FormArray) {
        this.errors = this.errors.concat(this.calculateErrors(control));
        return;
      }

      const controlErrors: ValidationErrors = control.errors;
      if (controlErrors !== null) {
        Object.keys(controlErrors).forEach(keyError => {
          this.errors.push({
            controlName: field,
            errorName: keyError,
            errorValue: controlErrors[keyError]
          });
        });
      }
    });

    // This removes duplicates
    this.errors = this.errors.filter((error, index, self) => self.findIndex(t => {
      return t.controlName === error.controlName && t.errorName === error.errorName;
    }) === index);
    return this.errors;
  }

  getErrorMessage(error) {
    switch (error.errorName) {
      case 'required':
        return this.translateService.instant('mustFill') + ' ' + this.messages[error.controlName];
      default:
        return 'unknown error ' + error.errorName;
    }
  }
}

And the HTML:

<div *ngIf="formRef.submitted">
  <div *ngFor="let error of errors" class="text-danger">
    {{getErrorMessage(error)}}
  </div>
</div>

Usage:

<app-form-errors [form]="languageForm"
                 [formRef]="formRef"
                 [messages]="{language: 'Language'}">
</app-form-errors>

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.

for a non-generic, simple solution to your exact problem:

homes.sort(
   function(a, b) {          
      if (a.city === b.city) {
         // Price is only important when cities are the same
         return b.price - a.price;
      }
      return a.city > b.city ? 1 : -1;
   });

IF you know the width of the container, you could do like this:

#container
  width: #{200}px
  #element
    width: #{(0.25 * 200) - 5}px

I'm aware that in many cases #container could have a relative width. Then this wouldn't work.

SpreadsheetGear for .NET does it this way:

        IWorkbook workbook = Factory.GetWorkbook();
        IRange a1 = workbook.Worksheets[0].Cells["A1"];
        a1.Value = "Hello\r\nWorld!";
        a1.WrapText = true;
        workbook.SaveAs(@"c:\HelloWorld.xlsx", FileFormat.OpenXMLWorkbook);

Note the "WrapText = true" - Excel will not wrap the text without this. I would assume that Aspose has similar APIs.

Disclaimer: I own SpreadsheetGear LLC

I did not have the issue when developing in localhost. However, once I published to a web server, the webservice was returning an empty (blank) result and I was seeing the error in my logs.

I fixed it by setting my ajax contentType to :

"application/json; charset=utf-8"

and using :

JSON.stringify()

on the object I was posting.

var postData = {data: myData};
$.ajax({
                type: "POST",
                url: "../MyService.asmx/MyMethod",
                data: JSON.stringify(postData), 
                contentType: "application/json; charset=utf-8",
                success: function (data) {
                    console.log(data);
                },
                dataType: "json"
            });

In my case this exception was occured when disk space was over and .NET can't allocate memory in Windows Virtual Memory.

In event log I saw this error:

Application popup: Windows - Virtual Memory Minimum Too Low : Your system is low on virtual memory. Windows is increasing the size of your virtual memory paging file. During this process, memory requests for some applications may be denied.

And previous error:

The C: disk is at or near capacity. You may need to delete some files.

choosing that file, will embed the icon in the executable.

To read a big file into array you can read line by line or chunk by chunk.

line by line refer to my answer here

var fs = require('fs'),
    es = require('event-stream'),

var lines = [];

var s = fs.createReadStream('filepath')
    .pipe(es.split())
    .pipe(es.mapSync(function(line) {
        //pause the readstream
        s.pause();
        lines.push(line);
        s.resume();
    })
    .on('error', function(err) {
        console.log('Error:', err);
    })
    .on('end', function() {
        console.log('Finish reading.');
        console.log(lines);
    })
);

chunk by chunk refer to this article

var offset = 0;
var chunkSize = 2048;
var chunkBuffer = new Buffer(chunkSize);
var fp = fs.openSync('filepath', 'r');
var bytesRead = 0;
while(bytesRead = fs.readSync(fp, chunkBuffer, 0, chunkSize, offset)) {
    offset += bytesRead;
    var str = chunkBuffer.slice(0, bytesRead).toString();
    var arr = str.split('\n');

    if(bytesRead = chunkSize) {
        // the last item of the arr may be not a full line, leave it to the next chunk
        offset -= arr.pop().length;
    }
    lines.push(arr);
}
console.log(lines);

Just go to Home> Cell Style > Normal

khir

In ~/.subversion/auth/svn.simple/ you should find a file with a long hexadecimal name. The password is in there in plaintext.

If there is more than one file you'll need to find that one that references the server you need the password for.

Re jcoby's answer:

bytea being a "normal" column also means the value being read completely into memory when you fetch it. Blobs, in contrast, you can stream into stdout. That helps in reducing the server memory footprint. Especially, when you store 4-6 MPix images.

No problem with backing up blobs. pg_dump provides "-b" option to include the large objects into the backup.

So, I prefer using pg_lo_*, you may guess.

Re Kris Erickson's answer:

I'd say the opposite :). When images are not the only data you store, don't store them on the file system unless you absolutely have to. It's such a benefit to be always sure about your data consistency, and to have the data "in one piece" (the DB). BTW, PostgreSQL is great in preserving consistency.

However, true, reality is often too performance-demanding ;-), and it pushes you to serve the binary files from the file system. But even then I tend to use the DB as the "master" storage for binaries, with all the other relations consistently linked, while providing some file system-based caching mechanism for performance optimization.

I have a same problem, with volley, but this is my solution:

1. In Android Manifiest, in tag application add:

   android:usesCleartextTraffic="true"
   android:networkSecurityConfig="@xml/network_security_config"
   

2. create in folder xml this file network_security_config.xml and write this:

   <?xml version="1.0" encoding="utf-8"?>
     <network-security-config>
       <base-config cleartextTrafficPermitted="true" />
     </network-security-config>
   

3. inside tag application add this tag:

   <uses-library android:name="org.apache.http.legacy" android:required="false"/>
   

You could use this code:

abc_KeyDown(abc, new KeyEventArgs(Keys.Enter));

First of all, if anyone is going to store any password in a file, I would make sure it's hashed. It's not the best security, but at least it will not be in plain text.

1. First, create the password and hash it:

   echo "password123" | md5sum  | cut -d '-' -f 1 > /tmp/secret
   

2. Now, create your program to use the hash. In this case, this little program receives user input for a password without echoing, and then converts it to hash to be compared with the stored hash. If it matches the stored hash, then access is granted:

   #!/bin/bash
   
   PASSWORD_FILE="/tmp/secret"
   MD5_HASH=$(cat /tmp/secret)
   PASSWORD_WRONG=1
   
   
   while [ $PASSWORD_WRONG -eq 1 ]
    do
       echo "Enter your password:"
       read -s ENTERED_PASSWORD
       if [ "$MD5_HASH" != "$(echo $ENTERED_PASSWORD | md5sum | cut -d '-' -f 1)" ]; then
           echo "Access Deniend: Incorrenct password!. Try again"
       else
           echo "Access Granted"
           PASSWORD_WRONG=0
       fi
   done
   

If you would like a bash function that works both on Mac OS X and Linux:

#
# Convert one date format to another
# 
# Usage: convert_date_format <input_format> <date> <output_format>
#
# Example: convert_date_format '%b %d %T %Y %Z' 'Dec 10 17:30:05 2017 GMT' '%Y-%m-%d'
convert_date_format() {
  local INPUT_FORMAT="$1"
  local INPUT_DATE="$2"
  local OUTPUT_FORMAT="$3"
  local UNAME=$(uname)

  if [[ "$UNAME" == "Darwin" ]]; then
    # Mac OS X
    date -j -f "$INPUT_FORMAT" "$INPUT_DATE" +"$OUTPUT_FORMAT"
  elif [[ "$UNAME" == "Linux" ]]; then
    # Linux
    date -d "$INPUT_DATE" +"$OUTPUT_FORMAT"
  else
    # Unsupported system
    echo "Unsupported system"
  fi
}

# Example: 'Dec 10 17:30:05 2017 GMT' => '2017-12-10'
convert_date_format '%b %d %T %Y %Z' 'Dec 10 17:30:05 2017 GMT' '%Y-%m-%d'

The following code allows you to specify the row/column number and get the resulting cell value:

WebDriver driver = new ChromeDriver();
WebElement base = driver.findElement(By.className("Table"));
tableRows = base.findElements(By.tagName("tr"));
List<WebElement> tableCols = tableRows.get([ROW_NUM]).findElements(By.tagName("td"));
String cellValue = tableCols.get([COL_NUM]).getText();

Now NgForm supports two methods: .reset() vs .resetForm() the latter also changes the submit state of the form to false reverting form and its controls to initial states.

If you have loads of columns in your table and don't want to type out each one you can do it using a temporary table, like;

SELECT *
INTO #Temp
FROM Table WHERE Event_ID = "120"
GO

UPDATE #TEMP
SET Column = "Changed"
GO

INSERT INTO Table
SELECT *
FROM #Temp

You can use cut with a delimiter like this:

with space delim:

cut -d " " -f1-100,1000-1005 infile.csv > outfile.csv

with tab delim:

cut -d$'\t' -f1-100,1000-1005 infile.csv > outfile.csv

I gave you the version of cut in which you can extract a list of intervals...

Hope it helps!

In my case, I had to setup the public key for another user, as I already had one for my main user. once I switched users and performed the commands in the link above I was able to perform the setup for my test server without a problem.

If response is in json and not a string then

alert(response.id);
or
alert(response['id']);

otherwise

var response = JSON.parse('{"id":"2231f87c-a62c-4c2c-8f5d-b76d11942301"}');
response.id ; //# => 2231f87c-a62c-4c2c-8f5d-b76d11942301

When you return value from server to jQuery's Ajax call you can also use the below code to indicate a server error:

return StatusCode(500, "My error");

Or

return StatusCode((int)HttpStatusCode.InternalServerError, "My error");

Or

Response.StatusCode = (int)HttpStatusCode.InternalServerError;
return Json(new { responseText = "my error" });

Codes other than Http Success codes (e.g. 200[OK]) will trigger the function in front of error: in client side (ajax).

you can have ajax call like:

$.ajax({
        type: "POST",
        url: "/General/ContactRequestPartial",
        data: {
            HashId: id
        },
       success: function (response)  {
            console.log("Custom message : " + response.responseText);
        }, //Is Called when Status Code is 200[OK] or other Http success code
        error: function (jqXHR, textStatus, errorThrown)  {
            console.log("Custom error : " + jqXHR.responseText + " Status: " + textStatus + " Http error:" + errorThrown);
        }, //Is Called when Status Code is 500[InternalServerError] or other Http Error code
        })

Additionally you can handle different HTTP errors from jQuery side like:

$.ajax({
        type: "POST",
        url: "/General/ContactRequestPartial",
        data: {
            HashId: id
        },
        statusCode: {
            500: function (jqXHR, textStatus, errorThrown)  {
                console.log("Custom error : " + jqXHR.responseText + " Status: " + textStatus + " Http error:" + errorThrown);
            501: function (jqXHR, textStatus, errorThrown)  {
                console.log("Custom error : " + jqXHR.responseText + " Status: " + textStatus + " Http error:" + errorThrown);
            }
        })

statusCode: is useful when you want to call different functions for different status codes that you return from server.

You can see list of different Http Status codes here:Wikipedia

Additional resources:

1. Returning Server-Side Errors from AJAX Calls
2. Returning a JsonResult within the Error function of JQuery Ajax
3. Handling Ajax errors with jQuery

If you are writing Metro app, you should use other code:

Ship ship = new Ship();
string value = "5.5";
PropertyInfo propertyInfo = ship.GetType().GetTypeInfo().GetDeclaredProperty("Latitude");
propertyInfo.SetValue(ship, Convert.ChangeType(value, propertyInfo.PropertyType));

Note:

ship.GetType().GetTypeInfo().GetDeclaredProperty("Latitude");

instead of

ship.GetType().GetProperty("Latitude");

Erm, can you not just use Settings.Default.Reset() to restore your default settings?

Your system clock is likely set in the past.Check the time using the date command and set it right

Just took @roghayeh hosseini (correct) answer and made it in Kotlin for those here in 2017 :)

fun getTopFragment(): Fragment? {
    supportFragmentManager.run {
        return when (backStackEntryCount) {
            0 -> null
            else -> findFragmentByTag(getBackStackEntryAt(backStackEntryCount - 1).name)
        }
    }
}

*This should be called from inside an Activity.

Enjoy :)

To install a specific version of nodejs in Ubuntu you can use below commands, just specify and replace the version number, for example, node_12.x will fetch the latest of 12.

curl https://deb.nodesource.com/gpgkey/nodesource.gpg.key | sudo apt-key add -
sudo apt-add-repository "deb https://deb.nodesource.com/node_7.x $(lsb_release -sc) main"
sudo apt-get update
sudo apt-get install nodejs

just like pure js do preventdefault : in class you should like this create a handler method :

handler(event) {
    event.preventDefault();
    console.log(event);
}

?php

/* Database config */

$db_host        = 'localhost';
$db_user        = '~';
$db_pass        = '~';
$db_database    = 'banners'; 

/* End config */


$mysqli = new mysqli($db_host, $db_user, $db_pass, $db_database);
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

?>

as the the accepted answer mentioned, you can enlarge the fontSize css attribute of the element in DOM one by one, the following code for your reference.

 <script>
    var factor = 1.2;
    var all = document.getElementsByTagName("*");
    for (var i=0, max=all.length; i < max; i++) {
        var style = window.getComputedStyle(all[i]);
        var fontSize = style.getPropertyValue('font-size');

        if(fontSize){
            all[i].style.fontSize=(parseFloat(fontSize)*factor)+"px";
        }
        if(all[i].nodeName === "IMG"){
            var width=style.getPropertyValue('width');
            var height=style.getPropertyValue('height');
            all[i].style.height = (parseFloat(height)*factor)+"px";
            all[i].style.width = (parseFloat(width)*factor)+"px";
        }
    }
</script>

token_type is a parameter in Access Token generate call to Authorization server, which essentially represents how an access_token will be generated and presented for resource access calls. You provide token_type in the access token generation call to an authorization server.

If you choose Bearer (default on most implementation), an access_token is generated and sent back to you. Bearer can be simply understood as "give access to the bearer of this token." One valid token and no question asked. On the other hand, if you choose Mac and sign_type (default hmac-sha-1 on most implementation), the access token is generated and kept as secret in Key Manager as an attribute, and an encrypted secret is sent back as access_token.

Yes, you can use your own implementation of token_type, but that might not make much sense as developers will need to follow your process rather than standard implementations of OAuth.

I encountered this problem when trying to show a loading gif while a form submit was processing. It had an added layer of fun in that the same onsubmit had to run a validator to make sure the form was correct. Like everyone else (on every IE/gif form post on the internet) I couldn't get the loading spinner to "spin" in IE (and, in my case, validate/submit the form). While looking through advice on http://www.west-wind.com I found a post by ev13wt that suggested the problem was "... that IE doesn't render the image as animated cause it was invisible when it was rendered." That made sense. His solution:

Leave blank where the gif would go and use JavaScript to set the source in the onsubmit function - document.getElementById('loadingGif').src = "path to gif file".

Here's how I implemented it:

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

        if (isNotEmptyid(form.A)) {
            if (isLen4(form.B)) {        
                if (isNotEmptydt(form.C)) {
                    if (isNumber(form.D)) {        
                        if (isLen6(form.E)){
                            if (isNotEmptynum(form.F)) {
                                if (isLen5(form.G)){
                                    document.getElementById('tabs').style.display = "none";                
                                    document.getElementById('dvloader').style.display = "block";                
                                    document.getElementById('loadingGif').src = "/images/ajax-loader.gif"; 
                                    return true;
                                }
                            }
                        }
                    }
                }
            }
        }
        return false;   
    }               
</script>

<form name="payo" action="process" method="post" onsubmit="return validateForm(this)">
    <!-- FORM INPUTS... -->
    <input type="submit" name="submit" value=" Authorize ">

    <div style="display:none" id="dvloader">  
        <img id="loadingGif" src="" alt="Animated Image that appears during processing of document." />
        Working... this process may take several minutes.
    </div>

</form>

This worked well for me in all browsers!

if you are using jupyter notebook like:

MODEL_NAME = os.path.basename(file)[:-3]

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
<ipython-input-10-f391bbbab00d> in <module>
----> 1 MODEL_NAME = os.path.basename(__file__)[:-3]

NameError: name '__file__' is not defined

you should place a ' ! ' in front like this

!MODEL_NAME = os.path.basename(__file__)[:-3]

/bin/bash: -c: line 0: syntax error near unexpected token `('
/bin/bash: -c: line 0: `MODEL_NAME = os.path.basename(__file__)[:-3]'

done.....

For completely silencing the output, here what works for me

```{r error=FALSE, warning=FALSE, message=FALSE}
invisible({capture.output({


# Your code here
2 * 2
# etc etc


})})
```

The 5 measures used above are

1. error = FALSE
2. warning = FALSE
3. message = FALSE
4. invisible()
5. capture.output()

Try to assign the image that way instead:

imgFavorito.Source = new BitmapImage(new Uri(base.BaseUri, @"/Assets/favorited.png"));

System.Decimal

The Decimal value type represents decimal numbers ranging from positive 79,228,162,514,264,337,593,543,950,335 to negative 79,228,162,514,264,337,593,543,950,335. The Decimal value type is appropriate for financial calculations requiring large numbers of significant integral and fractional digits and no round-off errors. The Decimal type does not eliminate the need for rounding. Rather, it minimizes errors due to rounding.

I'd like to point to this excellent answer by zneak on why double shouldn't be used.

This is a runnable example.

$(function(){
  $("td").click(function(event){
    if($(this).children("input").length > 0)
          return false;

    var tdObj = $(this);
    var preText = tdObj.html();
    var inputObj = $("<input type='text' />");
    tdObj.html("");

    inputObj.width(tdObj.width())
            .height(tdObj.height())
            .css({border:"0px",fontSize:"17px"})
            .val(preText)
            .appendTo(tdObj)
            .trigger("focus")
            .trigger("select");

    inputObj.keyup(function(event){
      if(13 == event.which) { // press ENTER-key
        var text = $(this).val();
        tdObj.html(text);
      }
      else if(27 == event.which) {  // press ESC-key
        tdObj.html(preText);
      }
    });

    inputObj.click(function(){
      return false;
    });
  });
});

<html>
    <head>
        <!-- jQuery source -->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
    </head>
    <body>
        <table align="center">
            <tr> <td>id</td> <td>name</td> </tr>
            <tr> <td>001</td> <td>dog</td> </tr>
            <tr> <td>002</td> <td>cat</td> </tr>
            <tr> <td>003</td> <td>pig</td> </tr>
        </table>
    </body>
</html>

I just ran into this same problem. My issue was the directory that I was trying to dump into didn't have write permission for the mysqld process. The initial sql dump would write out but the write of the csv/txt file would fail. Looks like the sql dump runs as the current user and the conversion to csv/txt is run as the user that is running mysqld. So the directory needs write permissions for both users.

You could use the Description attribute, as Yuriy suggested. The following extension method makes it easy to get the description for a given value of the enum:

public static string GetDescription(this Enum value)
{
    Type type = value.GetType();
    string name = Enum.GetName(type, value);
    if (name != null)
    {
        FieldInfo field = type.GetField(name);
        if (field != null)
        {
            DescriptionAttribute attr = 
                   Attribute.GetCustomAttribute(field, 
                     typeof(DescriptionAttribute)) as DescriptionAttribute;
            if (attr != null)
            {
                return attr.Description;
            }
        }
    }
    return null;
}

You can use it like this:

public enum MyEnum
{
    [Description("Description for Foo")]
    Foo,
    [Description("Description for Bar")]
    Bar
}

MyEnum x = MyEnum.Foo;
string description = x.GetDescription();

Use combinations of these to get the desired result:

1. Set Anchor property to None, the controls will not be resized, they only shift their position.

2. Set Anchor property to Top+Bottom+Left+Right, the controls will be resized but they don't change their position.

3. Set the Minimum Size of the form to a proper value.

4. Set Dock property.

5. Use Form Resize event to change whatever you want

I don't know how font size (label, textbox, combobox, etc.) will be affected in (1) - (4), but it can be controlled in (5).

Any chance that you changed the name of your table view from "tableView" to "myTableView" at some point?

You can use df.isnull().sum(). It shows all columns and the total NaNs of each feature.

I have to guess here, but git is probably running its output into your $PAGER program, likely less or more. In either case, typing q should get you out.

This is an old question and its been answered but I thought I'd put the --binary-files=text option here for anyone who wants to use it. The -I option ignores the binary file but if you want the grep to treat the binary file as a text file use --binary-files=text like so:

bash$ grep -i reset mediaLog*
Binary file mediaLog_dc1.txt matches
bash$ grep --binary-files=text -i reset mediaLog*
mediaLog_dc1.txt:2016-06-29 15:46:02,470 - Media [uploadChunk  ,315] - ERROR - ('Connection aborted.', error(104, 'Connection reset by peer'))
mediaLog_dc1.txt:ConnectionError: ('Connection aborted.', error(104, 'Connection reset by peer'))
bash$

You just can put your query as a subquery:

SELECT avg(count)
  FROM 
    (
    SELECT COUNT (*) AS Count
      FROM Table T
     WHERE T.Update_time =
               (SELECT MAX (B.Update_time )
                  FROM Table B
                 WHERE (B.Id = T.Id))
    GROUP BY T.Grouping
    ) as counts

Edit: I think this should be the same:

SELECT count(*) / count(distinct T.Grouping)
  FROM Table T
 WHERE T.Update_time =
           (SELECT MAX (B.Update_time)
              FROM Table B
             WHERE (B.Id = T.Id))

you can also use below solution -

public static String getRoundOffValue(double value){

        DecimalFormat df = new DecimalFormat("##,##,##,##,##,##,##0.00");
        return df.format(value);
}

You should initialize your variables outside the while loop. Outside the while loop, they currently have no scope. You are just relying on the good graces of php to let the values carry over outside the loop

           $hn = "";
           $pid = "";
           $datereg = "";
           $prefix = "";
           $fname = "";
           $lname = "";
           $age = "";
           $sex = "";
           while (...){}

alternatively, it looks like you are just expecting a single row back. so you could just say

$row = pg_fetch_array($result);
if(!row) {
    return array();
}
$hn = $row["patient_hn"];
$pid = $row["patient_id"];
$datereg = $row["patient_date_register"];
$prefix = $row["patient_prefix"];
$fname = $row["patient_fname"];
$lname = $row["patient_lname"];
$age = $row["patient_age"];
$sex = $row["patient_sex"];

return array($hn,$pid,$datereg,$prefix,$fname,$lname,$age,$sex) ;

I added yellow highlighted package and now my view page is accessible. in eclipse when we deploy our war it only deploy those stuff mention in the deployment assessment.

We set Deployment Assessment from right click on project --> Properties --> Apply and Close....

Just for fun, here is a way using a function:

 jsonObject = (new Function('return ' + jsonFormatData))()

Prime numbers are mainly used in cryptography since it consumes considerable time in determining whether a given number is prime number or not. For the hacker if any algorithm takes lot of time to break the code it becomes useless for them

What you can do is:

1. Update your local git repo:

   git fetch

2. Build a local branch and checkout on it:

   git branch pouet && git checkout pouet

3. Apply the commit you want on this branch:

   git cherry-pick abcdefabcdef

   (abcdefabcdef is the sha1 of the commit you want to apply)

Well, you can always try WHERE textcolumn LIKE "%SUBSTRING%" - but this is guaranteed to be pretty slow, as your query can't do an index match because you are looking for characters on the left side.

It depends on the field type - a textarea usually won't be saved as VARCHAR, but rather as (a kind of) TEXT field, so you can use the MATCH AGAINST operator.

To get the columns that don't match, simply put a NOT in front of the like: WHERE textcolumn NOT LIKE "%SUBSTRING%".

Whether the search is case-sensitive or not depends on how you stock the data, especially what COLLATION you use. By default, the search will be case-insensitive.

Updated answer to reflect question update:

I say that doing a WHERE field LIKE "%value%" is slower than WHERE field LIKE "value%" if the column field has an index, but this is still considerably faster than getting all values and having your application filter. Both scenario's:

1/ If you do SELECT field FROM table WHERE field LIKE "%value%", MySQL will scan the entire table, and only send the fields containing "value".

2/ If you do SELECT field FROM table and then have your application (in your case PHP) filter only the rows with "value" in it, MySQL will also scan the entire table, but send all the fields to PHP, which then has to do additional work. This is much slower than case #1.

Solution: Please do use the WHERE clause, and use EXPLAIN to see the performance.

I think using

select rownum st.Branch 
  from student st 
 where st.name like '%ram%'

is a simple way; you should add single quotes in the LIKE statement. If you use row_number(), you should add over (order by 'sort column' 'asc/desc'), for instance:

select st.branch, row_number() over (order by 'sort column' 'asc/desc')  
  from student st 
 where st.name like '%ram%'

I found that running a string shell command (sh -c) works best, for example:

find -name 'file_*' -follow -type f -exec bash -c "zcat \"{}\" | agrep -dEOE 'grep'" \;

UPDATE: 2019-12-30

It seem that this tool is no longer working! [Request for update!]

UPDATE 2019-01-06: You can bypass X-Frame-Options in an <iframe> using my X-Frame-Bypass Web Component. It extends the IFrame element by using multiple CORS proxies and it was tested in the latest Firefox and Chrome.

You can use it as follows:

1. (Optional) Include the Custom Elements with Built-in Extends polyfill for Safari:

   <script src="https://unpkg.com/@ungap/custom-elements-builtin"></script>
   

2. Include the X-Frame-Bypass JS module:

   <script type="module" src="x-frame-bypass.js"></script>
   

3. Insert the X-Frame-Bypass Custom Element:

   <iframe is="x-frame-bypass" src="https://example.org/"></iframe>
   

I ran across this while researching the proper loop to use for a situation I have. I believe this will fully satisfy a common situation where a do.. while loop is a better implementation than a while loop (C# language, since you stated that is your primary for work).

I am generating a list of strings based on the results of an SQL query. The returned object by my query is an SQLDataReader. This object has a function called Read() which advances the object to the next row of data, and returns true if there was another row. It will return false if there is not another row.

Using this information, I want to return each row to a list, then stop when there is no more data to return. A Do... While loop works best in this situation as it ensures that adding an item to the list will happen BEFORE checking if there is another row. The reason this must be done BEFORE checking the while(condition) is that when it checks, it also advances. Using a while loop in this situation would cause it to bypass the first row due to the nature of that particular function.

In short:

This won't work in my situation.

    //This will skip the first row because Read() returns true after advancing.
    while (_read.NextResult())
           {
               list.Add(_read.GetValue(0).ToString());
           }

   return list;

This will.

    //This will make sure the currently read row is added before advancing.
    do
        {
            list.Add(_read.GetValue(0).ToString());
        } 
        while (_read.NextResult());

    return list;

use body background if you are using fixed width sidebar give the same width image as your side bar. also put background-repeat:repeat-y in your css codes.

Just to add my 2 cents. I've compared some of these libraries. I attempted to matrix multiply a 3000 by 3000 matrix of doubles with itself. The results are as follows.

Using multithreaded ATLAS with C/C++, Octave, Python and R, the time taken was around 4 seconds.

Using Jama with Java, the time taken was 50 seconds.

Using Colt and Parallel Colt with Java, the time taken was 150 seconds!

Using JBLAS with Java, the time taken was again around 4 seconds as JBLAS uses multithreaded ATLAS.

So for me it was clear that the Java libraries didn't perform too well. However if someone has to code in Java, then the best option is JBLAS. Jama, Colt and Parallel Colt are not fast.

Use the synchronized keyword.

class sample {
    private String msg=null;

    public synchronized void newmsg(String x){
        msg=x;
    }

    public synchronized string getmsg(){
        String temp=msg;
        msg=null;
        return msg;
    }
}

Using the synchronized keyword on the methods will require threads to obtain a lock on the instance of sample. Thus, if any one thread is in newmsg(), no other thread will be able to get a lock on the instance of sample, even if it were trying to invoke getmsg().

On the other hand, using synchronized methods can become a bottleneck if your methods perform long-running operations - all threads, even if they want to invoke other methods in that object that could be interleaved, will still have to wait.

IMO, in your simple example, it's ok to use synchronized methods since you actually have two methods that should not be interleaved. However, under different circumstances, it might make more sense to have a lock object to synchronize on, as shown in Joh Skeet's answer.

If you want to combine both paths without losing any path you can use this:

?Path.Combine(@"C:\test", @"\test".Substring(0, 1) == @"\" ? @"\test".Substring(1, @"\test".Length - 1) : @"\test");

Or with variables:

string Path1 = @"C:\Test";
string Path2 = @"\test";
string FullPath = Path.Combine(Path1, Path2.IsRooted() ? Path2.Substring(1, Path2.Length - 1) : Path2);

Both cases return "C:\test\test".

First, I evaluate if Path2 starts with / and if it is true, return Path2 without the first character. Otherwise, return the full Path2.

Use this method and pass your array in parameter

Collections.shuffle(arrayList);

This method return void so it will not give you a new list but as we know that array is passed as a reference type in Java so it will shuffle your array and save shuffled values in it. That's why you don't need any return type.

You can now use arraylist which is shuffled.

A simple and flexible offline recognition on Android is implemented by CMUSphinx, an open source speech recognition toolkit. It works purely offline, fast and configurable It can listen continuously for keyword, for example.

You can find latest code and tutorial here.

Update in 2019: Time goes fast, CMUSphinx is not that accurate anymore. I recommend to try Kaldi toolkit instead. The demo is here.

This simulates a character array but you can substitute SUBSTR for ELT to simulate a string array

declare t_tipos varchar(255) default 'ABCDE';
declare t_actual char(1);
declare t_indice integer default 1;
while t_indice<length(t_tipos)+1 do
    set t_actual=SUBSTR(t_tipos,t_indice,1);
        select t_actual;
        set t_indice=t_indice+1;
end while;

You can use Group by All but be careful as Group by All will be removed from future versions of SQL server.

You shouldn't use String.match but RegExp.prototype.test (i.e. /abc/.test("abcd")) instead of String.search() if you're only interested in a boolean value. You also need to repeat your character class as explained in the answer by Andy E:

var regexp = /^[a-zA-Z0-9-_]+$/;

I added my pubkey to github.com and this was successful:

ssh -T [email protected]

But I received the "You can't push" error after having wrongly done this:

git clone git://github.com/mygithubacct/dotfiles.git
git remote add origin [email protected]:mygithubacct/dotfiles.git
...edit/add/commit
git push origin master

Instead of doing what I should have done:

mkdir dotfiles
cd dotfiles
git init
git remote add origin [email protected]:mygithubacct/dotfiles.git
git pull origin master
...edit/add/commit
git push origin master

Well, it's not a single statement, but it's about as close as you can get with oracle:

BEGIN
   FOR R IN (SELECT owner, table_name FROM all_tables WHERE owner='TheOwner') LOOP
      EXECUTE IMMEDIATE 'grant select on '||R.owner||'.'||R.table_name||' to TheUser';
   END LOOP;
END; 

I am using the following code in one of my current projects where i download data from the internet. It is all inside my activity class.

private class GetData extends AsyncTask<String, Void, JSONObject> {

        @Override
        protected void onPreExecute() {
            super.onPreExecute();

            progressDialog = ProgressDialog.show(Calendar.this,
                    "", "");

        }

        @Override
        protected JSONObject doInBackground(String... params) {

            String response;

            try {

                HttpClient httpclient = new DefaultHttpClient();

                HttpPost httppost = new HttpPost(url);

                HttpResponse responce = httpclient.execute(httppost);

                HttpEntity httpEntity = responce.getEntity();

                response = EntityUtils.toString(httpEntity);

                Log.d("response is", response);

                return new JSONObject(response);

            } catch (Exception ex) {

                ex.printStackTrace();

            }

            return null;
        }

        @Override
        protected void onPostExecute(JSONObject result) 
        {
            super.onPostExecute(result);

            progressDialog.dismiss();

            if(result != null)
            {
                try
                {
                    JSONObject jobj = result.getJSONObject("result");

                    String status = jobj.getString("status");

                    if(status.equals("true"))
                    {
                        JSONArray array = jobj.getJSONArray("data");

                        for(int x = 0; x < array.length(); x++)
                        {
                            HashMap<String, String> map = new HashMap<String, String>();

                            map.put("name", array.getJSONObject(x).getString("name"));

                            map.put("date", array.getJSONObject(x).getString("date"));

                            map.put("description", array.getJSONObject(x).getString("description"));

                            list.add(map);
                        }

                        CalendarAdapter adapter = new CalendarAdapter(Calendar.this, list);

                        list_of_calendar.setAdapter(adapter);
                    }
                }
                catch (Exception e) 
                {
                    e.printStackTrace();
                }
            }
            else
            {
                Toast.makeText(Calendar.this, "Network Problem", Toast.LENGTH_LONG).show();
            }
        }

    }

and execute it in OnCreate Method like new GetData().execute();

where Calendar is my calendarActivity and i have also created a CalendarAdapter to set these values to a list view.

For more complex type validations I like typeguard's approach of validating based on python type hint annotations:

from typeguard import check_type
from typing import List

try:
    check_type('mylist', [1, 2], List[int])
except TypeError as e:
    print(e)

You can perform very complex validations in very clean and readable fashion.

check_type('foo', [1, 3.14], List[Union[int, float]])
# vs
isinstance(foo, list) and all(isinstance(a, (int, float)) for a in foo) 

If you are looking to style a file input element, look at open file dialog box in javascript. If you are looking to grab the files associated with a file input element, you must do something like this:

inputElement.onchange = function(event) {
   var fileList = inputElement.files;
   //TODO do something with fileList.  
}

See this MDN article for more info on the FileList type.

Note that the code above will only work in browsers that support the File API. For IE9 and earlier, for example, you only have access to the file name. The input element has no files property in non-File API browsers.

The calculation is simple

if you want to add 1 hour in the date .

every day have 24 hour , you can add .

select sysdate + 1/24 from dual; 

if you want 1 day to add

select sysdate + 24/24 from dual; 

or 

select sysdate + 1 from dual; 

same as for 2, 3 , 4 day

For static date you have the answer below.

Following this Microsoft Doc:

using System;
using System.Diagnostics;
using System.Threading;
class Program
{
    static void Main(string[] args)
    {
        Stopwatch stopWatch = new Stopwatch();
        stopWatch.Start();
        Thread.Sleep(10000);
        stopWatch.Stop();
        // Get the elapsed time as a TimeSpan value.
        TimeSpan ts = stopWatch.Elapsed;

        // Format and display the TimeSpan value.
        string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}",
            ts.Hours, ts.Minutes, ts.Seconds,
            ts.Milliseconds / 10);
        Console.WriteLine("RunTime " + elapsedTime);
    }
}

Output: RunTime 00:00:09.94

I don't think there is any way other then storing the previous state. Here is the solution with jQuery

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script> 
<script type="text/javascript">
    var lastSelected;
    $(function () {
        //if you have any radio selected by default
        lastSelected = $('[name="myRadios"]:checked').val();
    });
    $(document).on('click', '[name="myRadios"]', function () {
        if (lastSelected != $(this).val() && typeof lastSelected != "undefined") {
            alert("radio box with value " + $('[name="myRadios"][value="' + lastSelected + '"]').val() + " was deselected");
        }
        lastSelected = $(this).val();
    });
</script>

<input type="radio" name="myRadios" value="1" />
<input type="radio" name="myRadios" value="2" />
<input type="radio" name="myRadios" value="3" />
<input type="radio" name="myRadios" value="4" />
<input type="radio" name="myRadios" value="5" />

After thinking about it a bit more, I decided to get rid of the variable and add/remove class. Here is what I got: http://jsfiddle.net/BeQh3/2/

import org.apache.commons.lang3.BooleanUtils;
boolean x = true;   
int y= BooleanUtils.toInteger(x);

The first time I struggled with mod_rewrite rules ignoring my traffic, I learned (frustratingly) that I had placed them in the wrong <VirtualHost>, which meant that my traffic would ignore all of them no matter how well-written they were. Make sure this isn't happening to you:

# Change the log location to suit your system. RewriteLog /var/log/apache-rw.log RewriteLogLevel 2

These parameters will activate if you perform a graceful restart of Apache, so you can recycle them in and closely monitor the mod_rewrite behavior. Once your problem is fixed, turn the RewriteLogLevel back down and celebrate.

In 100% of my experience, I've found that the RewriteLog has helped me discover the problem with my rewrite rules. I can't recommend this enough. Good luck in your troubleshooting!

Also, this bookmark is your best friend: http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html#rewritelog

if you use Vuejs, just make it by vue-shortkey plugin, everything will be simple

https://www.npmjs.com/package/vue-shortkey

v-shortkey="['meta', 'enter']"·
@shortkey="metaEnterTrigged"

Move the data retrieval at the top of the script, and after that use:

<title>Ultan.me - <?php echo htmlspecialchars($title, ENT_QUOTES, 'UTF-8'); ?></title>

This can help you

namedWindow( "Display window", CV_WINDOW_AUTOSIZE );// Create a window for display.
imshow( "Display window", image );                   // Show our image inside it.

Set the default console colors and fonts:

http://poshcode.org/2220
From Windows PowerShell Cookbook (O'Reilly)
by Lee Holmes (http://www.leeholmes.com/guide)

Set-StrictMode -Version Latest

Push-Location
Set-Location HKCU:\Console
New-Item '.\%SystemRoot%_system32_WindowsPowerShell_v1.0_powershell.exe'
Set-Location '.\%SystemRoot%_system32_WindowsPowerShell_v1.0_powershell.exe'

New-ItemProperty . ColorTable00 -type DWORD -value 0x00562401
New-ItemProperty . ColorTable07 -type DWORD -value 0x00f0edee
New-ItemProperty . FaceName -type STRING -value "Lucida Console"
New-ItemProperty . FontFamily -type DWORD -value 0x00000036
New-ItemProperty . FontSize -type DWORD -value 0x000c0000
New-ItemProperty . FontWeight -type DWORD -value 0x00000190
New-ItemProperty . HistoryNoDup -type DWORD -value 0x00000000
New-ItemProperty . QuickEdit -type DWORD -value 0x00000001
New-ItemProperty . ScreenBufferSize -type DWORD -value 0x0bb80078
New-ItemProperty . WindowSize -type DWORD -value 0x00320078
Pop-Location

Your program does not know what precision for decimal numbers to use so it throws:

java.lang.ArithmeticException: Non-terminating decimal expansion

Solution to bypass exception:

MathContext precision = new MathContext(int setPrecisionYouWant); // example 2
BigDecimal a = new BigDecimal("1.6",precision);
BigDecimal b = new BigDecimal("9.2",precision);
a.divide(b) // result = 0.17

Here you can check to show the model state error one by one

 public HttpResponseMessage CertificateUpload(employeeModel emp)
    {
        if (!ModelState.IsValid)
        {
            string errordetails = "";
            var errors = new List<string>();
            foreach (var state in ModelState)
            {
                foreach (var error in state.Value.Errors)
                {
                    string p = error.ErrorMessage;
                    errordetails = errordetails + error.ErrorMessage;

                }
            }
            Dictionary<string, object> dict = new Dictionary<string, object>();



            dict.Add("error", errordetails);
            return Request.CreateResponse(HttpStatusCode.BadRequest, dict);


        }
        else
        {
      //do something
        }
        }

}

var fullPath = @"C:\folder1\folder2\file.txt";
var lastDirectory = Path.GetDirectoryName(fullPath).Split('\\').LastOrDefault();

For iOS 7 & above:

• shift+command+H twice to simulate the double tap of home button
• swipe your app's screenshot upward to close it

You'll see screenshots representing the apps suspended on your device - those screenshots respond to touch events. Swiping is the gesture you'll make to "fling" the screenshot off of the screen. Note that on machines where your mouse is intended to represent your finger, you'll click and swipe as if it is your finger tapping and making the gesture.

You can always take the CTE, (Common Tabular Expression), approach.

;WITH updateCTE AS
(
    SELECT ID, TITLE 
    FROM HOLD_TABLE
    WHERE ID = 101
)

UPDATE updateCTE
SET TITLE = 'TEST';

Spring Boot will automatically find and load application.properties and application.yaml files from the following locations when your application starts:

1. The classpath root
2. The classpath /config package
3. The current directory
4. The /config subdirectory in the current directory
5. Immediate child directories of the /config subdirectory

The list is ordered by precedence (with values from lower items overriding earlier ones).

More info you can find here https://docs.spring.io/spring-boot/docs/current/reference/html/spring-boot-features.html#boot-features-external-config-files

All you have to do is enable the html variable to true.. I had same issue, all i had to do was html : true ,

    var hh = "<b>test</b>"; 
swal({
        title: "" + txt + "", 
        text: "Testno  sporocilo za objekt " + hh + "",  
        html: true,  
        confirmButtonText: "V redu", 
        allowOutsideClick: "true"  
});

Note: html : "Testno sporocilo za objekt " + hh + "",
may not work as html porperty is only use to active this feature by assign true / false value in the Sweetalert.
this html : "Testno sporocilo za objekt " + hh + "", is used in SweetAlert2

If you have downloaded the AS + SDK bundle: in Windows 10

C:\Users\ your User Name \AppData\Local\Android\sdk\platform-tools\

Run adb.exe

Type adb shell.

Now able to access adb and the db.

Using Except is exactly the right way to go. If your type overrides Equals and GetHashCode, or you're only interested in reference type equality (i.e. two references are only "equal" if they refer to the exact same object), you can just use:

var list3 = list1.Except(list2).ToList();

If you need to express a custom idea of equality, e.g. by ID, you'll need to implement IEqualityComparer<T>. For example:

public class IdComparer : IEqualityComparer<CustomObject>
{
    public int GetHashCode(CustomObject co)
    {
        if (co == null)
        {
            return 0;
        }
        return co.Id.GetHashCode();
    }

    public bool Equals(CustomObject x1, CustomObject x2)
    {
        if (object.ReferenceEquals(x1, x2))
        {
            return true;
        }
        if (object.ReferenceEquals(x1, null) ||
            object.ReferenceEquals(x2, null))
        {
            return false;
        }
        return x1.Id == x2.Id;
    }
}

Then use:

var list3 = list1.Except(list2, new IdComparer()).ToList();

Note that this will remove any duplicate elements. If you need duplicates to be preserved, it would probably be easiest to create a set from list2 and use something like:

var list3 = list1.Where(x => !set2.Contains(x)).ToList();

Here is a condensed replacement for the ConvertToLetter function that in theory should work for all possible positive integers. For example, 1412 produces "BBH" as the result.

Public Function ColumnNumToStr(ColNum As Integer) As String
Dim Value As Integer
Dim Rtn As String
    Rtn = ""
    Value = ColNum - 1
    While Value > 25
        Rtn = Chr(65 + (Value Mod 26)) & Rtn
        Value = Fix(Value / 26) - 1
    Wend
    Rtn = Chr(65 + Value) & Rtn
    ColumnNumToStr = Rtn
End Function

You can use transitions instead:

.successfully-saved.hide-opacity{
    opacity: 0;
}

.successfully-saved {
    color: #FFFFFF;
    text-align: center;

    -webkit-transition: opacity 3s ease-in-out;
    -moz-transition: opacity 3s ease-in-out;
    -ms-transition: opacity 3s ease-in-out;
    -o-transition: opacity 3s ease-in-out;
     opacity: 1;
}

This is my simple snippet on howto understand try-except-else-finally block in Python:

def div(a, b):
    try:
        a/b
    except ZeroDivisionError:
        print("Zero Division Error detected")
    else:
        print("No Zero Division Error")
    finally:
        print("Finally the division of %d/%d is done" % (a, b))

Let's try div 1/1:

div(1, 1)
No Zero Division Error
Finally the division of 1/1 is done

Let's try div 1/0

div(1, 0)
Zero Division Error detected
Finally the division of 1/0 is done

**Add elements in Final arraylist,**
**This will Help you sure**

import java.util.ArrayList;
import java.util.List;

public class NonDuplicateList {

public static void main(String[] args) {

    List<String> l1 = new ArrayList<String>();
    l1.add("1");l1.add("2");l1.add("3");l1.add("4");l1.add("5");l1.add("6");
    List<String> l2 = new ArrayList<String>();
    l2.add("1");l2.add("7");l2.add("8");l2.add("9");l2.add("10");l2.add("3");
    List<String> l3 = new ArrayList<String>();
    l3.addAll(l1);
    l3.addAll(l2);
    for (int i = 0; i < l3.size(); i++) {
        for (int j=i+1; j < l3.size(); j++) {
             if(l3.get(i) == l3.get(j)) {
                 l3.remove(j);
            }
        }
    }
    System.out.println(l3);
}

}

Output : [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

If you have Pillow installed with scipy and it is still giving you error then check your scipy version because it has been removed from scipy since 1.3.0rc1.

rather install scipy 1.1.0 by :

pip install scipy==1.1.0

check https://github.com/scipy/scipy/issues/6212

The method imread in scipy.misc requires the forked package of PIL named Pillow. If you are having problem installing the right version of PIL try using imread in other packages:

from matplotlib.pyplot import imread
im = imread(image.png)

To read jpg images without PIL use:

import cv2 as cv
im = cv.imread(image.jpg)

You can try from scipy.misc.pilutil import imread instead of from scipy.misc import imread

Please check the GitHub page : https://github.com/amueller/mglearn/issues/2 for more details.

Three things are being declared here: an anonymous enumerated type is declared, ShapeType is being declared a typedef for that anonymous enumeration, and the three names kCircle, kRectangle, and kOblateSpheroid are being declared as integral constants.

Let's break that down. In the simplest case, an enumeration can be declared as

enum tagname { ... };

This declares an enumeration with the tag tagname. In C and Objective-C (but not C++), any references to this must be preceded with the enum keyword. For example:

enum tagname x;  // declare x of type 'enum tagname'
tagname x;  // ERROR in C/Objective-C, OK in C++

In order to avoid having to use the enum keyword everywhere, a typedef can be created:

enum tagname { ... };
typedef enum tagname tagname;  // declare 'tagname' as a typedef for 'enum tagname'

This can be simplified into one line:

typedef enum tagname { ... } tagname;  // declare both 'enum tagname' and 'tagname'

And finally, if we don't need to be able to use enum tagname with the enum keyword, we can make the enum anonymous and only declare it with the typedef name:

typedef enum { ... } tagname;

Now, in this case, we're declaring ShapeType to be a typedef'ed name of an anonymous enumeration. ShapeType is really just an integral type, and should only be used to declare variables which hold one of the values listed in the declaration (that is, one of kCircle, kRectangle, and kOblateSpheroid). You can assign a ShapeType variable another value by casting, though, so you have to be careful when reading enum values.

Finally, kCircle, kRectangle, and kOblateSpheroid are declared as integral constants in the global namespace. Since no specific values were specified, they get assigned to consecutive integers starting with 0, so kCircle is 0, kRectangle is 1, and kOblateSpheroid is 2.

The following CSS changes in bold (plus a bunch of content in the columns to test scrolling) will work. See the result in this Pen.

.content { flex: 1; display: flex; height: 1px; }

.column { padding: 20px; border-right: 1px solid #999; overflow: auto; }

The trick seems to be that a scrollable panel needs to have a height literally set somewhere (in this case, via its parent), not just determined by flexbox. So even height: 1px works. The flex-grow:1 will still size the panel to fit properly.

On OS X, you need to take into account existing window decorations. They add 22 pixels to the height. So on a JFrame, you need to tell the program this:

frame.setSize(width, height + 22);

If you also want to make this deletion operation chainable, so you can delete some item and keep on chaining operations on the resulting array, use tap:

[2, 4, 6, 3, 8].tap { |ary| ary.delete(3) }.count #=> 4

before you send the email you can press <ESC> f (Escape followed by f) to change the From: Address.

Constraint: This only works if you use mutt in curses mode and do not wan't to script it or if you want to change the address permanent. Then the other solutions are way better!

This won't save time on loading from the database. But, you could always unset the column you don't want in the array it's placed in. I had several columns in a table but didn't want one particular. I was too lazy to write them all out in the SELECT statement.

$i=0;
$row_array = array();

while($row = mysqli_fetch_assoc($result)){

  $row_array[$i]=$row;
  unset($row_array[$i]['col_name']);
  $i++;
}

Another approach would be to have an array of objects, with each individual object holding the properties of a column. This slightly changes the structure of "myMappings", but makes it easy to work with:

var myMappings = [
    { title: "Name", width: "10%" },
    { title: "Phone", width: "10%" },
    { title: "Address", width: "50%" },
    { title: "Zip", width: "10%" },
    { title: "Comments", width: "20%" }
];

Then you could easily iterate through all your "columns" with a for loop:

for (var i = 0; i < myMappings.length; i += 1) {
    // myMappings[i].title ...
    // myMappings[i].width ...
}

can you try it once...

String dob="your date String";
String dobis=null;
final DateFormat df = new SimpleDateFormat("yyyy-MMM-dd");
final Calendar c = Calendar.getInstance();
try {
    if(dob!=null && !dob.isEmpty() && dob != "")
    {
    c.setTime(df.parse(dob));
    int month=c.get(Calendar.MONTH);
    month=month+1;
    dobis=c.get(Calendar.YEAR)+"-"+month+"-"+c.get(Calendar.DAY_OF_MONTH);
    }

}

A simple definition: A web service is a function that can be accessed by other programs over the web (HTTP).

For example, when you create a website in PHP that outputs HTML, its target is the browser and by extension the human reading the page in the browser. A web service is not targeted at humans but rather at other programs.

So your PHP site that generates a random integer could be a web service if it outputs the integer in a format that may be consumed by another program. It might be in an XML format or another format, as long as other programs can understand the output.

The full definition is obviously more complex but you asked for plain English.

When you use sprites, you are limited to the dimensions of the image in the sprite. The background-size CSS property, mentioned by Stephen, isn't widely supported yet and might cause problems with browsers like IE8 and below - and given their market share, this isn't a viable option.

Another way to solve the problem is to use two elements and scale the sprite by using it with an img tag, like this:

<div class="sprite-image"
     style="width:20px; height:20px; overflow:hidden; position:relative">
    <!-- set width/height proportionally, to scale the sprite image -->
    <img src="sprite.png" alt="icon"
         width="20" height="80"
         style="position:absolute; top: -20px; left: 0;" />
</div>

This way, the outer element (div.sprite-image) is cropping a 20x20px image from the img tag, which acts like a scaled background-image.

var bmp = new Bitmap(@"path\picture.bmp");
using( Graphics g = Graphics.FromImage( bmp ) )
{
    g.DrawString( ... );
}

picturebox1.Image = bmp;

No, what you are looking for would be called a parent selector. CSS has none; they have been proposed multiple times but I know of no existing or forthcoming standard including them. You are correct that you would need to use something like jQuery or use additional class annotations to achieve the effect you want.

Here are some similar questions with similar results:

• Is there a CSS parent selector?
• CSS Parent/Ancestor Selector
• Complex CSS selector for parent of active child

I am on shared hosting, so I can't do a lot of queries otherwise I get a blank page.

That sounds very peculiar. I've got the cheapest PHP hosting package I could find for my last project - and it does not behave like this. I would not pay for a service which did. Indeed, I'm stumped to even know how I could configure a server to replicate this behaviour.

Regardless of why it behaves this way, adding a sleep in the middle of the script cannot resolve the problem.

Since, presumably, you control your product catalog, new products should be relatively infrequent (or are you trying to get stock reports?). If you control when you change the data, why run the scripts automatically? Or do you mean that you already have these URLs and you get the expected files when you run them one at a time?

Note: keyCode is now deprecated.

Multiple keystroke detection is easy if you understand the concept

The way I do it is like this:

var map = {}; // You could also use an array
onkeydown = onkeyup = function(e){
    e = e || event; // to deal with IE
    map[e.keyCode] = e.type == 'keydown';
    /* insert conditional here */
}

This code is very simple: Since the computer only passes one keystroke at a time, an array is created to keep track of multiple keys. The array can then be used to check for one or more keys at once.

Just to explain, let's say you press A and B, each fires a keydown event that sets map[e.keyCode] to the value of e.type == keydown, which evaluates to either true or false. Now both map[65] and map[66] are set to true. When you let go of A, the keyup event fires, causing the same logic to determine the opposite result for map[65] (A), which is now false, but since map[66] (B) is still "down" (it hasn't triggered a keyup event), it remains true.

The map array, through both events, looks like this:

// keydown A 
// keydown B
[
    65:true,
    66:true
]
// keyup A
// keydown B
[
    65:false,
    66:true
]

There are two things you can do now:

A) A Key logger (example) can be created as a reference for later when you want to quickly figure out one or more key codes. Assuming you have defined an html element and pointed to it with the variable element.

element.innerHTML = '';
var i, l = map.length;
for(i = 0; i < l; i ++){
    if(map[i]){
        element.innerHTML += '<hr>' + i;
    }
}

Note: You can easily grab an element by its id attribute.

<div id="element"></div>

This creates an html element that can be easily referenced in javascript with element

alert(element); // [Object HTMLDivElement]

You don't even have to use document.getElementById() or $() to grab it. But for the sake of compatibility, use of jQuery's $() is more widely recommended.

Just make sure the script tag comes after the body of the HTML. Optimization tip: Most big-name websites put the script tag after the body tag for optimization. This is because the script tag blocks further elements from loading until its script is finished downloading. Putting it ahead of the content allows the content to load beforehand.

B (which is where your interest lies) You can check for one or more keys at a time where /*insert conditional here*/ was, take this example:

if(map[17] && map[16] && map[65]){ // CTRL+SHIFT+A
    alert('Control Shift A');
}else if(map[17] && map[16] && map[66]){ // CTRL+SHIFT+B
    alert('Control Shift B');
}else if(map[17] && map[16] && map[67]){ // CTRL+SHIFT+C
    alert('Control Shift C');
}

Edit: That isn't the most readable snippet. Readability's important, so you could try something like this to make it easier on the eyes:

function test_key(selkey){
    var alias = {
        "ctrl":  17,
        "shift": 16,
        "A":     65,
        /* ... */
    };

    return key[selkey] || key[alias[selkey]];
}

function test_keys(){
    var keylist = arguments;

    for(var i = 0; i < keylist.length; i++)
        if(!test_key(keylist[i]))
            return false;

    return true;
}

Usage:

test_keys(13, 16, 65)
test_keys('ctrl', 'shift', 'A')
test_key(65)
test_key('A')

Is this better?

if(test_keys('ctrl', 'shift')){
    if(test_key('A')){
        alert('Control Shift A');
    } else if(test_key('B')){
        alert('Control Shift B');
    } else if(test_key('C')){
        alert('Control Shift C');
    }
}

(end of edit)

This example checks for CtrlShiftA, CtrlShiftB, and CtrlShiftC

It's just as simple as that :)

Notes

Keeping Track of KeyCodes

As a general rule, it is good practice to document code, especially things like Key codes (like // CTRL+ENTER) so you can remember what they were.

You should also put the key codes in the same order as the documentation (CTRL+ENTER => map[17] && map[13], NOT map[13] && map[17]). This way you won't ever get confused when you need to go back and edit the code.

A gotcha with if-else chains

If checking for combos of differing amounts (like CtrlShiftAltEnter and CtrlEnter), put smaller combos after larger combos, or else the smaller combos will override the larger combos if they are similar enough. Example:

// Correct:
if(map[17] && map[16] && map[13]){ // CTRL+SHIFT+ENTER
    alert('Whoa, mr. power user');
}else if(map[17] && map[13]){ // CTRL+ENTER
    alert('You found me');
}else if(map[13]){ // ENTER
    alert('You pressed Enter. You win the prize!')
}

// Incorrect:
if(map[17] && map[13]){ // CTRL+ENTER
    alert('You found me');
}else if(map[17] && map[16] && map[13]){ // CTRL+SHIFT+ENTER
    alert('Whoa, mr. power user');
}else if(map[13]){ // ENTER
    alert('You pressed Enter. You win the prize!');
}
// What will go wrong: When trying to do CTRL+SHIFT+ENTER, it will
// detect CTRL+ENTER first, and override CTRL+SHIFT+ENTER.
// Removing the else's is not a proper solution, either
// as it will cause it to alert BOTH "Mr. Power user" AND "You Found Me"

Gotcha: "This key combo keeps activating even though I'm not pressing the keys"

When dealing with alerts or anything that takes focus from the main window, you might want to include map = [] to reset the array after the condition is done. This is because some things, like alert(), take the focus away from the main window and cause the 'keyup' event to not trigger. For example:

if(map[17] && map[13]){ // CTRL+ENTER
    alert('Oh noes, a bug!');
}
// When you Press any key after executing this, it will alert again, even though you 
// are clearly NOT pressing CTRL+ENTER
// The fix would look like this:

if(map[17] && map[13]){ // CTRL+ENTER
    alert('Take that, bug!');
    map = {};
}
// The bug no longer happens since the array is cleared

Gotcha: Browser Defaults

Here's an annoying thing I found, with the solution included:

Problem: Since the browser usually has default actions on key combos (like CtrlD activates the bookmark window, or CtrlShiftC activates skynote on maxthon), you might also want to add return false after map = [], so users of your site won't get frustrated when the "Duplicate File" function, being put on CtrlD, bookmarks the page instead.

if(map[17] && map[68]){ // CTRL+D
    alert('The bookmark window didn\'t pop up!');
    map = {};
    return false;
}

Without return false, the Bookmark window would pop up, to the dismay of the user.

The return statement (new)

Okay, so you don't always want to exit the function at that point. That's why the event.preventDefault() function is there. What it does is set an internal flag that tells the interpreter to not allow the browser to run its default action. After that, execution of the function continues (whereas return will immediately exit the function).

Understand this distinction before you decide whether to use return false or e.preventDefault()

event.keyCode is deprecated

User SeanVieira pointed out in the comments that event.keyCode is deprecated.

There, he gave an excellent alternative: event.key, which returns a string representation of the key being pressed, like "a" for A, or "Shift" for Shift.

I went ahead and cooked up a tool for examining said strings.

element.onevent vs element.addEventListener

Handlers registered with addEventListener can be stacked, and are called in the order of registration, while setting .onevent directly is rather aggressive and overrides anything you previously had.

document.body.onkeydown = function(ev){
    // do some stuff
    ev.preventDefault(); // cancels default actions
    return false; // cancels this function as well as default actions
}

document.body.addEventListener("keydown", function(ev){
    // do some stuff
    ev.preventDefault() // cancels default actions
    return false; // cancels this function only
});

The .onevent property seems to override everything and the behavior of ev.preventDefault() and return false; can be rather unpredictable.

In either case, handlers registered via addEventlistener seem to be easier to write and reason about.

There is also attachEvent("onevent", callback) from Internet Explorer's non-standard implementation, but this is beyond deprecated and doesn't even pertain to JavaScript (it pertains to an esoteric language called JScript). It would be in your best interest to avoid polyglot code as much as possible.

A helper class

To address confusion/complaints, I've written a "class" that does this abstraction (pastebin link):

function Input(el){
    var parent = el,
        map = {},
        intervals = {};
    
    function ev_kdown(ev)
    {
        map[ev.key] = true;
        ev.preventDefault();
        return;
    }
    
    function ev_kup(ev)
    {
        map[ev.key] = false;
        ev.preventDefault();
        return;
    }
    
    function key_down(key)
    {
        return map[key];
    }

    function keys_down_array(array)
    {
        for(var i = 0; i < array.length; i++)
            if(!key_down(array[i]))
                return false;

        return true;
    }
    
    function keys_down_arguments()
    {
        return keys_down_array(Array.from(arguments));
    }
    
    function clear()
    {
        map = {};
    }
    
    function watch_loop(keylist, callback)
    {
        return function(){
            if(keys_down_array(keylist))
                callback();
        }
    }

    function watch(name, callback)
    {
        var keylist = Array.from(arguments).splice(2);

        intervals[name] = setInterval(watch_loop(keylist, callback), 1000/24);
    }

    function unwatch(name)
    {
        clearInterval(intervals[name]);
        delete intervals[name];
    }

    function detach()
    {
        parent.removeEventListener("keydown", ev_kdown);
        parent.removeEventListener("keyup", ev_kup);
    }
    
    function attach()
    {
        parent.addEventListener("keydown", ev_kdown);
        parent.addEventListener("keyup", ev_kup);
    }
    
    function Input()
    {
        attach();

        return {
            key_down: key_down,
            keys_down: keys_down_arguments,
            watch: watch,
            unwatch: unwatch,
            clear: clear,
            detach: detach
        };
    }
    
    return Input();
}

This class doesn't do everything and it won't handle every conceivable use case. I'm not a library guy. But for general interactive use it should be fine.

To use this class, create an instance and point it to the element you want to associate keyboard input with:

var input_txt = Input(document.getElementById("txt"));

input_txt.watch("print_5", function(){
    txt.value += "FIVE ";
}, "Control", "5");

What this will do is attach a new input listener to the element with #txt (let's assume it's a textarea), and set a watchpoint for the key combo Ctrl+5. When both Ctrl and 5 are down, the callback function you passed in (in this case, a function that adds "FIVE " to the textarea) will be called. The callback is associated with the name print_5, so to remove it, you simply use:

input_txt.unwatch("print_5");

To detach input_txt from the txt element:

input_txt.detach();

This way, garbage collection can pick up the object (input_txt), should it be thrown away, and you won't have an old zombie event listener left over.

For thoroughness, here is a quick reference to the class's API, presented in C/Java style so you know what they return and what arguments they expect.

Boolean  key_down (String key);

Returns true if key is down, false otherwise.

Boolean  keys_down (String key1, String key2, ...);

Returns true if all keys key1 .. keyN are down, false otherwise.

void     watch (String name, Function callback, String key1, String key2, ...);

Creates a "watchpoint" such that pressing all of keyN will trigger the callback

void     unwatch (String name);

Removes said watchpoint via its name

void     clear (void);

Wipes the "keys down" cache. Equivalent to map = {} above

void     detach (void);

Detaches the ev_kdown and ev_kup listeners from the parent element, making it possible to safely get rid of the instance

Update 2017-12-02 In response to a request to publish this to github, I have created a gist.

Update 2018-07-21 I've been playing with declarative style programming for a while, and this way is now my personal favorite: fiddle, pastebin

Generally, it'll work with the cases you would realistically want (ctrl, alt, shift), but if you need to hit, say, a+w at the same time, it wouldn't be too difficult to "combine" the approaches into a multi-key-lookup.

I hope this thoroughly explained answer mini-blog was helpful :)

If you are converting html to pdf on the html server side you can use Rotativa :

Install-Package Rotativa

This is based on wkhtmltopdf but it has better css support than iTextSharp has and is very simple to integrate with MVC (which is mostly used) as you can simply return the view as pdf:

public ActionResult GetPdf()
{
    //...
    return new ViewAsPdf(model);// and you are done!
}