Swift 4 - GET request

var request = URLRequest(url: URL(string: "http://example.com/api/v1/example")!)
request.httpMethod = "GET"

URLSession.shared.dataTask(with: request, completionHandler: { data, response, error -> Void in
    do {
        let jsonDecoder = JSONDecoder()
        let responseModel = try jsonDecoder.decode(CustomDtoClass.self, from: data!)
        print(responseModel)
    } catch {
        print("JSON Serialization error")
    }
}).resume()

Don't forget to configure App Transport Security Settings to add your domain to the exceptions and allow insecure http requests if you're hitting endpoints without using HTTPS.

You can use a tool like http://www.json4swift.com/ to autogenerate your Codeable Mappings from your JSON responses.

diff --color option was added to GNU diffutils 3.4 (2016-08-08)

This is the default diff implementation on most distros, which will soon be getting it.

Ubuntu 18.04 has diffutils 3.6 and therefore has it.

On 3.5 it looks like this:

Tested with:

diff --color -u \
  <(seq 6 | sed 's/$/ a/') \
  <(seq 8 | grep -Ev '^(2|3)$' | sed 's/$/ a/')

Apparently added in commit c0fa19fe92da71404f809aafb5f51cfd99b1bee2 (Mar 2015).

Word-level diff

Like diff-highlight. Not possible it seems, feature request: https://lists.gnu.org/archive/html/diffutils-devel/2017-01/msg00001.html

Related threads:

• Using 'diff' (or anything else) to get character-level diff between text files
• https://unix.stackexchange.com/questions/11128/diff-within-a-line
• https://superuser.com/questions/496415/using-diff-on-a-long-one-line-file

ydiff does it though, see below.

ydiff side-by-side word level diff

https://github.com/ymattw/ydiff

Is this Nirvana?

python3 -m pip install --user ydiff
diff -u a b | ydiff -s

Outcome:

If the lines are too narrow (default 80 columns), fit to screen with:

diff -u a b | ydiff -w 0 -s

Contents of the test files:

a

1
2
3
4
5 the original line the original line the original line the original line
6
7
8
9
10
11
12
13
14
15 the original line the original line the original line the original line
16
17
18
19
20

b

1
2
3
4
5 the original line teh original line the original line the original line
6
7
8
9
10
11
12
13
14
15 the original line the original line the original line the origlnal line
16
17
18
19
20

ydiff Git integration

ydiff integrates with Git without any configuration required.

From inside a git repository, instead of git diff, you can do just:

ydiff -s

and instead of git log:

ydiff -ls

See also: How can I get a side-by-side diff when I do "git diff"?

Tested on Ubuntu 16.04, git 2.18.0, ydiff 1.1.

with open('test.txt', 'r') as inf, open('test1.txt', 'w') as outf:
    for line in inf:
        line = line.strip()
        if line:
            try:
                outf.write(str(int(line, 16)))
                outf.write('\n')
            except ValueError:
                print("Could not parse '{0}'".format(line))

String array[]=new String[]; and String array[]=new String[]{};

No difference,these are just different ways of declaring array

String array=new String[10]{}; got error why ?

This is because you can not declare the size of the array in this format.

right way is

String array[]=new String[]{"a","b"};

Steps to reproduce can be simplified to this:

var contextOne = new EntityContext();
var contextTwo = new EntityContext();

var user = contextOne.Users.FirstOrDefault();

var group = new Group();
group.User = user;

contextTwo.Groups.Add(group);
contextTwo.SaveChanges();

Code without error:

var context = new EntityContext();

var user = context.Users.FirstOrDefault();

var group = new Group();
group.User = user; // Be careful when you set entity properties. 
// Be sure that all objects came from the same context

context.Groups.Add(group);
context.SaveChanges();

Using only one EntityContext can solve this. Refer to other answers for other solutions.

It's the "frame" or "range" clause of window functions, which are part of the SQL standard and implemented in many databases, including Teradata.

A simple example would be to calculate the average amount in a frame of three days. I'm using PostgreSQL syntax for the example, but it will be the same for Teradata:

WITH data (t, a) AS (
  VALUES(1, 1),
        (2, 5),
        (3, 3),
        (4, 5),
        (5, 4),
        (6, 11)
)
SELECT t, a, avg(a) OVER (ORDER BY t ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING)
FROM data
ORDER BY t

... which yields:

t  a  avg
----------
1  1  3.00
2  5  3.00
3  3  4.33
4  5  4.00
5  4  6.67
6 11  7.50

As you can see, each average is calculated "over" an ordered frame consisting of the range between the previous row (1 preceding) and the subsequent row (1 following).

When you write ROWS UNBOUNDED PRECEDING, then the frame's lower bound is simply infinite. This is useful when calculating sums (i.e. "running totals"), for instance:

WITH data (t, a) AS (
  VALUES(1, 1),
        (2, 5),
        (3, 3),
        (4, 5),
        (5, 4),
        (6, 11)
)
SELECT t, a, sum(a) OVER (ORDER BY t ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
FROM data
ORDER BY t

yielding...

t  a  sum
---------
1  1    1
2  5    6
3  3    9
4  5   14
5  4   18
6 11   29

Here's another very good explanations of SQL window functions.

If the usage of something is part of the process of you making money, then it's generally considered a commercial use. If the purpose of the site is to, through some means or another, directly or indirectly, make you money, then it's probably commercial use.

If, on the other hand, something is merely incidental (not part of the process of production/working, but instead simply tacked on to the side), there are potential grounds for it not to be considered commercial use.

I had this same error and I didn't understand but I realized that my modem was using the same port as mysql. Well, I stop apache2.service by sudo systemctl stop apache2.service and restarted the xammp, sudo /opt/lampp/lampp start

Just maybe, if you were not using a password for mysql yet you had, 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES), then you have to pass an empty string as the password

You can also create a new jsp file sayng that form is submited and in your main action file just write its file name

Eg. Your form is submited is in a file succes.jsp Then your action file will have

Request.sendRedirect("success.jsp")

If you use the FIND_IN_SET function:

FIND_IN_SET(a, columnname) yields all the records that have "a" in them, alone or with others

AND

FIND_IN_SET(columnname, a) yields only the records that have "a" in them alone, NOT the ones with the others

So if record1 is (a,b,c) and record2 is (a)

FIND_IN_SET(columnname, a) yields only record2 whereas FIND_IN_SET(a, columnname) yields both records.

Insert a dummy record into one of your databases that has a timestamp Select that record and get value of timestamp. Delete that record. Gets for sure the timezone that the server is using to write data and ignores PHP timezones.

All the answers worked. However, I had to add the variables that I needed to get to the sudoers files as follows:

sudo visudo
Defaults env_keep += "<var1>, <var2>, ..., <varn>"

Currently you cannot use the Registry API for that task. It only allows you to delete a repository or a specific tag.

In general, deleting a repository means, that all the tags associated to this repo are deleted.

Deleting a tag means, that the association between an image and a tag is deleted.

None of the above will delete a single image. They are left on your disk.

Workaround

For this workaround you need to have your docker images stored locally.

A workaround for your solution would be to delete all but the latest tags and thereby potentially removing the reference to the associated images. Then you can run this script to remove all images, that are not referenced by any tag or the ancestry of any used image.

Terminology (images and tags)

Consider an image graph like this where the capital letters (A, B, ...) represent short image IDs and <- means that an image is based on another image:

 A <- B <- C <- D

Now we add tags to the picture:

 A <- B <- C <- D
           |    |
           |    <version2>
           <version1>

Here, the tag <version1> references the image C and the tag <version2> references the image D.

Refining your question

In your question you said that you wanted to remove

all images but the latest

. Now, this terminology is not quite correct. You've mixed images and tags. Looking at the graph I think you would agree that the tag <version2> represents the latest version. In fact, according to this question you can have a tag that represents the latest version:

 A <- B <- C <- D
           |    |
           |    <version2>
           |    <latest>
           <version1>

Since the <latest> tag references image D I ask you: do you really want to delete all but image D? Probably not!

What happens if you delete a tag?

If you delete the tag <version1> using the Docker REST API you will get this:

 A <- B <- C <- D
                |
                <version2>
                <latest>

Remember: Docker will never delete an image! Even if it did, in this case it cannot delete an image, since the image C is part of the ancestry for the image D which is tagged.

Even if you use this script, no image will be deleted.

When an image can be deleted

Under the condition that you can control when somebody can pull or push to your registry (e.g. by disabling the REST interface). You can delete an image from an image graph if no other image is based on it and no tag refers to it.

Notice that in the following graph, the image D is not based on C but on B. Therefore, D doesn't depend on C. If you delete tag <version1> in this graph, the image C will not be used by any image and this script can remove it.

 A <- B <--------- D
      \            |
       \           <version2>
        \          <latest>
         \ <- C
              |
              <version1>

After the cleanup your image graph looks like this:

 A <- B <- D
           |
           <version2>
           <latest>

Is this what you want?

< img style="vertical-align: bottom" src="blah.png" >

Works for me. Inside a parallax div as well.

The answer by Kleist certainly works, but there is an important caveat:

When you write a Makefile manually, you might generate a SRCS variable using a function to select all .cpp and .h files. If a source file is later added, re-running make will include it.

However, CMake (with a command like file(GLOB ...)) will explicitly generate a file list and place it in the auto-generated Makefile. If you have a new source file, you will need to re-generate the Makefile by re-running cmake.

edit: No need to remove the Makefile.

Similar to 'Pattern.compile' there is 'RECompiler.compile' [from com.sun.org.apache.regexp.internal] where:
1. compiled code for pattern [a-z] has 'az' in it
2. compiled code for pattern [0-9] has '09' in it
3. compiled code for pattern [abc] has 'aabbcc' in it.

Thus compiled code is a great way to generalize multiple cases. Thus instead of having different code handling situation 1,2 and 3 . The problem reduces to comparing with the ascii of present and next element in the compiled code, hence the pairs. Thus
a. anything with ascii between a and z is between a and z
b. anything with ascii between 'a and a is definitely 'a'

Generate your own API key here. Check out the documentation here.

You may need to set up a billing account when you try to enable the Google Cloud Translation API in your account.

Below is a quick start example which translates two English strings to Spanish:

import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Arrays;

import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.translate.Translate;
import com.google.api.services.translate.model.TranslationsListResponse;
import com.google.api.services.translate.model.TranslationsResource;

public class QuickstartSample
{
    public static void main(String[] arguments) throws IOException, GeneralSecurityException
    {
        Translate t = new Translate.Builder(
                GoogleNetHttpTransport.newTrustedTransport()
                , GsonFactory.getDefaultInstance(), null)
                // Set your application name
                .setApplicationName("Stackoverflow-Example")
                .build();
        Translate.Translations.List list = t.new Translations().list(
                Arrays.asList(
                        // Pass in list of strings to be translated
                        "Hello World",
                        "How to use Google Translate from Java"),
                // Target language
                "ES");

        // TODO: Set your API-Key from https://console.developers.google.com/
        list.setKey("your-api-key");
        TranslationsListResponse response = list.execute();
        for (TranslationsResource translationsResource : response.getTranslations())
        {
            System.out.println(translationsResource.getTranslatedText());
        }
    }
}

Required maven dependencies for the code snippet:

<dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-translate</artifactId>
    <version>LATEST</version>
</dependency>

<dependency>
    <groupId>com.google.http-client</groupId>
    <artifactId>google-http-client-gson</artifactId>
    <version>LATEST</version>
</dependency>

I solved my 'foreign key constraint fails' issues by adding the following code to the start of the SQL code (this was for importing values to a table)

SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT;
SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS;
SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION;
SET NAMES utf8;
SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO';
SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0; 

Then adding this code to the end of the file

SET SQL_MODE=@OLD_SQL_MODE;
SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;
SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT;
SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS;
SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION;
SET SQL_NOTES=@OLD_SQL_NOTES; 

Is it also possible to access the management port in a similar way, e.g.:

  @SpringBootTest(classes = {Application.class}, webEnvironment = WebEnvironment.RANDOM_PORT)
  public class MyTest {

    @LocalServerPort
    int randomServerPort;

    @LocalManagementPort
    int randomManagementPort;

An absolute xpath in HTML DOM starts with /html e.g.

/html/body/div[5]/div[2]/div/div[2]/div[2]/h2[1]

and a relative xpath finds the closed id to the dom element and generates xpath starting from that element e.g.

.//*[@id='answers']/h2[1]/a[1]

You can use firepath (firebug) for generating both types of xpaths

It won't make any difference which xpath you use in selenium, the former may be faster than the later one (but it won't be observable)

Absolute xpaths are prone to more regression as slight change in DOM makes them invalid or refer to a wrong element

@Franci Penov - modify is possible in the sense of overwrite with /f, eg

reg add "HKCU\Software\etc\etc" /f /v "value" /t REG_SZ /d "Yes"

You can simply use back() function to redirect no need to use redirect()->back() make sure you are using 5.2 or greater than 5.2 version.

You can replace your code to below code.

return back()->with('message', 'WORKS!');

In the view file replace below code.

@if(session()->has('message'))
    <div class="alert alert-success">
        {{ session()->get('message') }}
    </div>
@endif

For more detail, you can read here

back() is just a helper function. It's doing the same thing as redirect()->back()

I had the same problem and it works you just have to declare the i outside of the loop:

int i;

for(i = low; i <= high; ++i)

{
        res = runalg(i);
        if (res > highestres)
        {
                highestres = res;
        }

}

I faced the same problem and solve it by this method. html :

<div id="parentDiv">
   <div id="childDiv">
     AAA
   </div>
    BBBB
</div>

JS:

$(document).ready(function(){
 $("#parentDiv").click(function(e){
   if(e.target.id=="childDiv"){
     childEvent();
   } else {
     parentEvent();
   }
 });
});

function childEvent(){
    alert("child event");
}

function parentEvent(){
    alert("paren event");
}

If you'd like to get a graphical, searchable representation of the dependency tree (including all modules from your project, transitive dependencies and eviction information), check out UpdateImpact: https://app.updateimpact.com (free service).

Disclaimer: I'm one of the developers of the site

If I understand correctly, this should work for you

if (ds.Tables[0].Rows.Count == 0)
{
    //
}

setInterval(moveItem, 2000);

is the way to execute the function moveItem every 2 seconds. The main problem in your code is that you're calling setInterval inside of, rather than outside of, the callback. If I understand what you're trying to do, you can use this:

function moveItem() {
    jQuery('.stripTransmitter ul li a').trigger('click');
}

setInterval(moveItem, 2000);

N.B.:Don't pass strings to setTimeout or setInterval - best practice is to pass an anonymous function or a function identifier (as I did above). Also, be careful to not mix single and double quotes. Pick one and stick with it.

Use myDialogFragment.setTargetFragment(this, MY_REQUEST_CODE) from the place where you show the dialog, and then when your dialog is finished, from it you can call getTargetFragment().onActivityResult(getTargetRequestCode(), ...), and implement onActivityResult() in the containing fragment.

It seems like an abuse of onActivityResult(), especially as it doesn't involve activities at all. But I've seen it recommended by official google people, and maybe even in the api demos. I think it's what g/setTargetFragment() were added for.

I have this version about datetimepicker https://tempusdominus.github.io/bootstrap-4/ and for any reason doesn`t work the change event with jquery but with JS vanilla it does

I figure out like this

document.getElementById('date').onchange = function(){ ...the jquery code...}

I hope work for you

Modern Solution

The result is that the circle never gets distorted and the text stays exactly in the middle of the circle - vertically and horizontally.

.circle {
  background: gold;
  width: 40px; 
  height: 40px;
  border-radius: 50%;
  display: flex; /* or inline-flex */
  align-items: center; 
  justify-content: center;
}

<div class="circle">text</div>

Simple and easy to use. Enjoy!

The same problem observed on my side while looking for uiautomatorviewer.bat. After installing Android studio 3.6.2 (at Win10) I was looking for Android SDK Tools section at SDK Manager. Currently, this section is Hidden as Obsolete. Fix: uncheck Hide Obsolete Packages, then check the mentioned package and install it - C:\Users..\AppData\Local\Android\Sdk\tools\bin is created.

Sometimes the field is not recognized by crystal reports as DATE, so you can add a formula with function: Date({YourField}), And add it to the report, now when you open the format object dialog you will find the date formatting options.

you can use app:layout_constraintVertical_weight it same as layout_weight in linearlayout

<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">

<Button
    android:id="@+id/button4"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:text="Button"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toLeftOf="@+id/button5"
    app:layout_constraintVertical_weight="1"/>

<Button
    android:id="@+id/button5"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:text="Button"
    app:layout_constraintLeft_toRightOf="@+id/button4"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintVertical_weight="1"/>
</android.support.constraint.ConstraintLayout>

NOTE: app:layout_constraintVertical_weight(app:layout_constraintHorizontal_weight) will work with android:layout_width="0dp" (android:layout_height="0dp"

A generic solution is to introduce a new type. It may be more involved, but it has the advantage of working for any type that doesn't define its own infinity.

If T is a type for which lteq is defined, you can define InfiniteOr<T> with lteq something like this:

class InfiniteOr with type parameter T:
    field the_T of type null-or-an-actual-T
    isInfinite()
        return this.the_T == null
    getFinite():
        assert(!isInfinite());
        return this.the_T
    lteq(that)
        if that.isInfinite()
            return true
        if this.isInfinite()
            return false
        return this.getFinite().lteq(that.getFinite())

I'll leave it to you to translate this to exact Java syntax. I hope the ideas are clear; but let me spell them out anyways.

The idea is to create a new type which has all the same values as some already existing type, plus one special value which—as far as you can tell through public methods—acts exactly the way you want infinity to act, e.g. it's greater than anything else. I'm using null to represent infinity here, since that seems the most straightforward in Java.

If you want to add arithmetic operations, decide what they should do, then implement that. It's probably simplest if you handle the infinite cases first, then reuse the existing operations on finite values of the original type.

There might or might not be a general pattern to whether or not it's beneficial to adopt a convention of handling left-hand-side infinities before right-hand-side infinities or vice versa; I can't tell without trying it out, but for less-than-or-equal (lteq) I think it's simpler to look at right-hand-side infinity first. I note that lteq is not commutative, but add and mul are; maybe that is relevant.

Note: coming up with a good definition of what should happen on infinite values is not always easy. It is for comparison, addition and multiplication, but maybe not subtraction. Also, there is a distinction between infinite cardinal and ordinal numbers which you may want to pay attention to.

SET ANSI_NULLS ON

IT Returns all values including null values in the table

SET ANSI_NULLS off

it Ends when columns contains null values

You can use this:

function sanitize(string) {
  const map = {
      '&': '&',
      '<': '&lt;',
      '>': '&gt;',
      '"': '&quot;',
      "'": '&#x27;',
      "/": '&#x2F;',
  };
  const reg = /[&<>"'/]/ig;
  return string.replace(reg, (match)=>(map[match]));
}

Also see OWASP XSS Prevention Cheat Sheet.

Actually for some reason wireshark uses two different kind of filter syntax one on display filter and other on capture filter. Display filter is only useful to find certain traffic just for display purpose only. its like you are interested in all trafic but for now you just want to see specific.

but if you are interested only in certian traffic and does not care about other at all then you use the capture filter.

The Syntax for display filter is (as mentioned earlier)

ip.addr = x.x.x.x or ip.src = x.x.x.x or ip.dst = x.x.x.x

but above syntax won't work in capture filters, following are the filters

host x.x.x.x

see more example on wireshark wiki page

Open Notepad++ and Settings -> Preferences -> Auto-Completion -> Check the Auto-insert options you want. this link will help alot: http://docs.notepad-plus-plus.org/index.php/Auto_Completion

I found squashing more useful than filter-branch. I did the following:

1. Locally delete large files.
2. Commit the local deletes.
3. Soft reset back X number of commits (for me it was 3): git reset --soft HEAD~3.
4. Then recommit all the changes together (AKA squash) git commit -m "New message for the combined commit"
5. Push squashed commit.

Special case (from user @lituo): If above doesn't work, then you may have this case. Commit 1 included the large file and Commit 1's push failed due to large file error. Commit 2 removed the large file by git rm --cached [file_name] but Commit 2's push still failed. You can follow the same steps above but instead of using HEAD~3, use HEAD~2.

You can accomplish this using the scikits.audiolab module. It requires NumPy and SciPy to function, and also libsndfile.

Note, I was only able to get it to work on Ubunutu and not on OSX.

from scikits.audiolab import wavread

filename = "testfile.wav"

data, sample_frequency,encoding = wavread(filename)

Now you have the wav data

Just an improvement to the nice answer given by @vuhung3990. I implemented the solution and works great but if I touch one radio button it will be selected and nothing happens.

I suggest to also change page when a radio button is tapped. To do this, simply add a listener to the radioGroup:

mPager = (ViewPager) findViewById(R.id.pager);
final RadioGroup radioGroup = (RadioGroup)findViewById(R.id.radiogroup);    
radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                switch (checkedId) {
                    case R.id.radioButton :
                        mPager.setCurrentItem(0, true);
                        break;
                    case R.id.radioButton2 :
                        mPager.setCurrentItem(1, true);
                        break;
                    case R.id.radioButton3 :
                        mPager.setCurrentItem(2, true);
                        break;
                }
            }
        });

Try this line.

while sleep 1;do echo "$(date +%d-%m-%y-%T) $(ping -c 1 whatever.com | gawk 'FNR==2{print "Response from:",$4,$8}')" | tee -a /yourfolder/pingtest.log;done

You'll have to cancel it with ctrl-c tho.

I think you cannot speak of a "conversion" here. That will be a whole project. To "convert" it i think you have to write it again for the iphone.

Have a look at this question:

Is there a multiplatform framework for developing iPhone / Android applications?

As you can see from the answers there, there is no good way of developing applications for both platforms at the same time (except if you're developing games where flash makes it easy to be portable).

Apple introduced the topLayoutGuide and bottomLayoutGuide as properties of UIViewController way back in iOS 7. They allowed you to create constraints to keep your content from being hidden by UIKit bars like the status, navigation or tab bar. These layout guides are deprecated in iOS 11 and replaced by a single safe area layout guide.

Refer link for more information.

This Question was asked here: VBA Arrays - Check strict (not approximative) match

Sub test()
    vars1 = Array("Examples")
    vars2 = Array("Example")
    If IsInArray(Range("A1").value, vars1) Then
        x = 1
    End If

    If IsInArray(Range("A1").value, vars2) Then
        x = 1
    End If
End Sub

Function IsInArray(stringToBeFound As String, arr As Variant) As Boolean
    IsInArray = Not IsError(Application.Match(stringToBeFound, arr, 0))
End Function

If you need "sub-10-character hash" you could use Fletcher-32 algorithm which produces 8 character hash (32 bits), CRC-32 or Adler-32.

CRC-32 is slower than Adler32 by a factor of 20% - 100%.

Fletcher-32 is slightly more reliable than Adler-32. It has a lower computational cost than the Adler checksum: Fletcher vs Adler comparison.

A sample program with a few Fletcher implementations is given below:

    #include <stdio.h>
    #include <string.h>
    #include <stdint.h> // for uint32_t

    uint32_t fletcher32_1(const uint16_t *data, size_t len)
    {
            uint32_t c0, c1;
            unsigned int i;

            for (c0 = c1 = 0; len >= 360; len -= 360) {
                    for (i = 0; i < 360; ++i) {
                            c0 = c0 + *data++;
                            c1 = c1 + c0;
                    }
                    c0 = c0 % 65535;
                    c1 = c1 % 65535;
            }
            for (i = 0; i < len; ++i) {
                    c0 = c0 + *data++;
                    c1 = c1 + c0;
            }
            c0 = c0 % 65535;
            c1 = c1 % 65535;
            return (c1 << 16 | c0);
    }

    uint32_t fletcher32_2(const uint16_t *data, size_t l)
    {
        uint32_t sum1 = 0xffff, sum2 = 0xffff;

        while (l) {
            unsigned tlen = l > 359 ? 359 : l;
            l -= tlen;
            do {
                sum2 += sum1 += *data++;
            } while (--tlen);
            sum1 = (sum1 & 0xffff) + (sum1 >> 16);
            sum2 = (sum2 & 0xffff) + (sum2 >> 16);
        }
        /* Second reduction step to reduce sums to 16 bits */
        sum1 = (sum1 & 0xffff) + (sum1 >> 16);
        sum2 = (sum2 & 0xffff) + (sum2 >> 16);
        return (sum2 << 16) | sum1;
    }

    int main()
    {
        char *str1 = "abcde";  
        char *str2 = "abcdef";

        size_t len1 = (strlen(str1)+1) / 2; //  '\0' will be used for padding 
        size_t len2 = (strlen(str2)+1) / 2; // 

        uint32_t f1 = fletcher32_1(str1,  len1);
        uint32_t f2 = fletcher32_2(str1,  len1);

        printf("%u %X \n",    f1,f1);
        printf("%u %X \n\n",  f2,f2);

        f1 = fletcher32_1(str2,  len2);
        f2 = fletcher32_2(str2,  len2);

        printf("%u %X \n",f1,f1);
        printf("%u %X \n",f2,f2);

        return 0;
    }

Output:

4031760169 F04FC729                                                                                                                                                                                                                              
4031760169 F04FC729                                                                                                                                                                                                                              

1448095018 56502D2A                                                                                                                                                                                                                              
1448095018 56502D2A                                                                                                                                                                                                                              

Agrees with Test vectors:

"abcde"  -> 4031760169 (0xF04FC729)
"abcdef" -> 1448095018 (0x56502D2A)

Adler-32 has a weakness for short messages with few hundred bytes, because the checksums for these messages have a poor coverage of the 32 available bits. Check this:

The Adler32 algorithm is not complex enough to compete with comparable checksums.

Another solution could be, that you deleted a file from your Project by just removing it in your file system, instead of removing it within your project.

I suggest the use of htop, as a better alternative to top.

Both do different things.

The first creates an object with automatic storage duration. It is created, used, and then goes out of scope when the current block ({ ... }) ends. It's the simplest way to create an object, and is just the same as when you write int x = 0;

The second creates an object with dynamic storage duration and allows two things:

• Fine control over the lifetime of the object, since it does not go out of scope automatically; you must destroy it explicitly using the keyword delete;

• Creating arrays with a size known only at runtime, since the object creation occurs at runtime. (I won't go into the specifics of allocating dynamic arrays here.)

Neither is preferred; it depends on what you're doing as to which is most appropriate.

Use the former unless you need to use the latter.

Your C++ book should cover this pretty well. If you don't have one, go no further until you have bought and read, several times, one of these.

Good luck.

Your original code is broken, as it deletes a char array that it did not new. In fact, nothing newd the C-style string; it came from a string literal. deleteing that is an error (albeit one that will not generate a compilation error, but instead unpredictable behaviour at runtime).

Usually an object should not have the responsibility of deleteing anything that it didn't itself new. This behaviour should be well-documented. In this case, the rule is being completely broken.

As for me, this approach is prettier:

String.prototype.embraceWith = function(tag) {
    return "<" + tag + ">" + this + "</" + tag + ">";
};

var results = [
  {type:"Fiat", model:500, color:"white"}, 
  {type:"Mercedes", model: "Benz", color:"black"},
  {type:"BMV", model: "X6", color:"black"}
];

var tableHeader = ("Type".embraceWith("th") + "Model".embraceWith("th") + "Color".embraceWith("th")).embraceWith("tr");
var tableBody = results.map(function(item) {
    return (item.type.embraceWith("td") + item.model.toString().embraceWith("td") + item.color.embraceWith("td")).embraceWith("tr")
}).join("");

var table = (tableHeader + tableBody).embraceWith("table");

$("#result-holder").append(table);

Interestingly, base R aggregate's data.frame method is not showcased here, above the formula interface is used, so for completeness:

aggregate(
  x = df1[c("x1", "x2")],
  by = df1[c("year", "month")],
  FUN = sum, na.rm = TRUE
)

More generic use of aggregate's data.frame method:

Since we are providing a

• data.frame as x and
• a list (data.frame is also a list) as by, this is very useful if we need to use it in a dynamic manner, e.g. using other columns to be aggregated and to aggregate by is very simple
• also with custom-made aggregation functions

For example like so:

colsToAggregate <- c("x1")
aggregateBy <- c("year", "month")
dummyaggfun <- function(v, na.rm = TRUE) {
  c(sum = sum(v, na.rm = na.rm), mean = mean(v, na.rm = na.rm))
}

aggregate(df1[colsToAggregate], by = df1[aggregateBy], FUN = dummyaggfun)

If you want to select the file or folder you can use the following:

Process.Start("explorer.exe", "/select, c:\\teste");

Your code may be running in the security context of a user that is not allowed to start a service.

Since you are using WCF, I am guessing that you are in the context of NETWORK SERVICE.

see: http://support.microsoft.com/kb/256299

In urlip3 there's no .urlopen, instead try this:

import requests
html = requests.get(url)

Comparison between different approaches in swift 3.0

1. Sleep

This method does not have a call back. Put codes directly after this line to be executed in 4 seconds. It will stop user from iterating with UI elements like the test button until the time is gone. Although the button is kind of frozen when sleep kicks in, other elements like activity indicator is still spinning without freezing. You cannot trigger this action again during the sleep.

sleep(4)
print("done")//Do stuff here

2. Dispatch, Perform and Timer

These three methods work similarly, they are all running on the background thread with call backs, just with different syntax and slightly different features.

Dispatch is commonly used to run something on the background thread. It has the callback as part of the function call

DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(4), execute: {
    print("done")
})

Perform is actually a simplified timer. It sets up a timer with the delay, and then trigger the function by selector.

perform(#selector(callback), with: nil, afterDelay: 4.0)

func callback() {
    print("done")
}}

And finally, timer also provides ability to repeat the callback, which is not useful in this case

Timer.scheduledTimer(timeInterval: 4, target: self, selector: #selector(callback), userInfo: nil, repeats: false)


func callback() {
    print("done")
}}

For all these three method, when you click on the button to trigger them, UI will not freeze and you are allowed to click on it again. If you click on the button again, another timer is set up and the callback will be triggered twice.

In conclusion

None of the four method works good enough just by themselves. sleep will disable user interaction, so the screen "freezes"(not actually) and results bad user experience. The other three methods will not freeze the screen, but you can trigger them multiple times, and most of the times, you want to wait until you get the call back before allowing user to make the call again.

So a better design will be using one of the three async methods with screen blocking. When user click on the button, cover the entire screen with some translucent view with a spinning activity indicator on top, telling user that the button click is being handled. Then remove the view and indicator in the call back function, telling user that the the action is properly handled, etc.

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

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

Get the difference between the two date times:

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

Object created:

PS> $Obj


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

Access an item directly:

PS> $Obj.Minutes
31

PHP-Like rounding Method

The code below can be used to add your own version of Math.round to your own namespace which takes a precision parameter. Unlike Decimal rounding in the example above, this performs no conversion to and from strings, and the precision parameter works same way as PHP and Excel whereby a positive 1 would round to 1 decimal place and -1 would round to the tens.

var myNamespace = {};
myNamespace.round = function(number, precision) {
    var factor = Math.pow(10, precision);
    var tempNumber = number * factor;
    var roundedTempNumber = Math.round(tempNumber);
    return roundedTempNumber / factor;
};

myNamespace.round(1234.5678, 1); // 1234.6
myNamespace.round(1234.5678, -1); // 1230

from Mozilla Developer reference for Math.round()

You need to add your ORACLE_HOME definition in your listener.ora file. Right now its not registered with any ORACLE_HOME.

Sample listener.ora

abc =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = abc.kma.com)(PORT = 1521))
    )
  )

SID_LIST_abc =
  (SID_LIST =
    (SID_DESC =
      (ORACLE_HOME= /abc/DbTier/11.2.0)
      (SID_NAME = abc)
    )
  )

The for-in statement is really there to enumerate over object properties, which is how it is implemented in TypeScript. There are some issues with using it on arrays.

I can't speak on behalf of the TypeScript team, but I believe this is the reason for the implementation in the language.

You have to load jdbc driver. Consider below Code.

try {
           Class.forName("com.mysql.jdbc.Driver");

            // connect way #1
            String url1 = "jdbc:mysql://localhost:3306/aavikme";
            String user = "root";
            String password = "aa";

            conn1 = DriverManager.getConnection(url1, user, password);
            if (conn1 != null) {
                System.out.println("Connected to the database test1");
            }

            // connect way #2
            String url2 = "jdbc:mysql://localhost:3306/aavikme?user=root&password=aa";
            conn2 = DriverManager.getConnection(url2);
            if (conn2 != null) {
                System.out.println("Connected to the database test2");
            }

            // connect way #3
            String url3 = "jdbc:mysql://localhost:3306/aavikme";
            Properties info = new Properties();
            info.put("user", "root");
            info.put("password", "aa");

            conn3 = DriverManager.getConnection(url3, info);
            if (conn3 != null) {
                System.out.println("Connected to the database test3");
            }
   } catch (SQLException ex) {
            System.out.println("An error occurred. Maybe user/password is invalid");
            ex.printStackTrace();
   } catch (ClassNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }

Concurrent Database Access

Same article on my blog(I like formatting more)

I wrote small article which describe how to make access to your android database thread safe.

Assuming you have your own SQLiteOpenHelper.

public class DatabaseHelper extends SQLiteOpenHelper { ... }

Now you want to write data to database in separate threads.

 // Thread 1
 Context context = getApplicationContext();
 DatabaseHelper helper = new DatabaseHelper(context);
 SQLiteDatabase database = helper.getWritableDatabase();
 database.insert(…);
 database.close();

 // Thread 2
 Context context = getApplicationContext();
 DatabaseHelper helper = new DatabaseHelper(context);
 SQLiteDatabase database = helper.getWritableDatabase();
 database.insert(…);
 database.close();

You will get following message in your logcat and one of your changes will not be written.

android.database.sqlite.SQLiteDatabaseLockedException: database is locked (code 5)

This is happening because every time you create new SQLiteOpenHelper object you are actually making new database connection. If you try to write to the database from actual distinct connections at the same time, one will fail. (from answer above)

To use database with multiple threads we need to make sure we are using one database connection.

Let’s make singleton class Database Manager which will hold and return single SQLiteOpenHelper object.

public class DatabaseManager {

    private static DatabaseManager instance;
    private static SQLiteOpenHelper mDatabaseHelper;

    public static synchronized void initializeInstance(SQLiteOpenHelper helper) {
        if (instance == null) {
            instance = new DatabaseManager();
            mDatabaseHelper = helper;
        }
    }

    public static synchronized DatabaseManager getInstance() {
        if (instance == null) {
            throw new IllegalStateException(DatabaseManager.class.getSimpleName() +
                    " is not initialized, call initialize(..) method first.");
        }

        return instance;
    }

    public SQLiteDatabase getDatabase() {
        return new mDatabaseHelper.getWritableDatabase();
    }

}

Updated code which write data to database in separate threads will look like this.

 // In your application class
 DatabaseManager.initializeInstance(new MySQLiteOpenHelper());
 // Thread 1
 DatabaseManager manager = DatabaseManager.getInstance();
 SQLiteDatabase database = manager.getDatabase()
 database.insert(…);
 database.close();

 // Thread 2
 DatabaseManager manager = DatabaseManager.getInstance();
 SQLiteDatabase database = manager.getDatabase()
 database.insert(…);
 database.close();

This will bring you another crash.

java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase

Since we are using only one database connection, method getDatabase() return same instance of SQLiteDatabase object for Thread1 and Thread2. What is happening, Thread1 may close database, while Thread2 is still using it. That’s why we have IllegalStateException crash.

We need to make sure no-one is using database and only then close it. Some folks on stackoveflow recommended to never close your SQLiteDatabase. This will result in following logcat message.

Leak found
Caused by: java.lang.IllegalStateException: SQLiteDatabase created and never closed

Working sample

public class DatabaseManager {

    private int mOpenCounter;

    private static DatabaseManager instance;
    private static SQLiteOpenHelper mDatabaseHelper;
    private SQLiteDatabase mDatabase;

    public static synchronized void initializeInstance(SQLiteOpenHelper helper) {
        if (instance == null) {
            instance = new DatabaseManager();
            mDatabaseHelper = helper;
        }
    }

    public static synchronized DatabaseManager getInstance() {
        if (instance == null) {
            throw new IllegalStateException(DatabaseManager.class.getSimpleName() +
                    " is not initialized, call initializeInstance(..) method first.");
        }

        return instance;
    }

    public synchronized SQLiteDatabase openDatabase() {
        mOpenCounter++;
        if(mOpenCounter == 1) {
            // Opening new database
            mDatabase = mDatabaseHelper.getWritableDatabase();
        }
        return mDatabase;
    }

    public synchronized void closeDatabase() {
        mOpenCounter--;
        if(mOpenCounter == 0) {
            // Closing database
            mDatabase.close();

        }
    }

}

Use it as follows.

SQLiteDatabase database = DatabaseManager.getInstance().openDatabase();
database.insert(...);
// database.close(); Don't close it directly!
DatabaseManager.getInstance().closeDatabase(); // correct way

Every time you need database you should call openDatabase() method of DatabaseManager class. Inside this method, we have a counter, which indicate how many times database is opened. If it equals to one, it means we need to create new database connection, if not, database connection is already created.

The same happens in closeDatabase() method. Every time we call this method, counter is decreased, whenever it goes to zero, we are closing database connection.

Now you should be able to use your database and be sure it's thread safe.

I'm going to provide a functional (immutable) way of doing it.

1. The standard and easy way of doing it is to use slicing:

   index_to_remove = 3
   data = [*range(5)]
   new_data = data[:index_to_remove] + data[index_to_remove + 1:]
   
   print(f"data: {data}, new_data: {new_data}")
   

   Output:

   data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
   

2. Use list comprehension:

   data = [*range(5)]
   new_data = [v for i, v in enumerate(data) if i != index_to_remove]
   
   print(f"data: {data}, new_data: {new_data}") 
   

   Output:

   data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
   

3. Use filter function:

   index_to_remove = 3
   data = [*range(5)]
   new_data = [*filter(lambda i: i != index_to_remove, data)]
   

   Output:

   data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
   

4. Using masking. Masking is provided by itertools.compress function in the standard library:

   from itertools import compress
   
   index_to_remove = 3
   data = [*range(5)]
   mask = [1] * len(data)
   mask[index_to_remove] = 0
   new_data = [*compress(data, mask)]
   
   print(f"data: {data}, mask: {mask}, new_data: {new_data}")
   

   Output:

   data: [0, 1, 2, 3, 4], mask: [1, 1, 1, 0, 1], new_data: [0, 1, 2, 4]
   

5. Use itertools.filterfalse function from Python standard library

   from itertools import filterfalse
   
   index_to_remove = 3
   data = [*range(5)]
   new_data = [*filterfalse(lambda i: i == index_to_remove, data)]
   
   print(f"data: {data}, new_data: {new_data}")
   

   Output:

   data: [0, 1, 2, 3, 4], new_data: [0, 1, 2, 4]
   

I'm a postgraduate student in Beijing,China. I major in computer science and a lot of my work is programming. I am born with low sight, I need to use magnifying tools to see fonts on screen clearly. I use microsoft's mgnify tools on windows and use compiz's magnify plug in if on linux. I usally set the tool to magnify as three times many as the original font size. For me maginify tools is ok, the main problem is the speed,I have to move mouse to keep cursors follow the text I'm looking at, microsoft's magnify provides a option of "auto follow the text edit points",that set me from continuously mouse movement when editting or coding. But it doesn't always works because of the edit software or IDE may not support that. Magnifying tools on linux are hard to use. The KMag come with KDE has a terrible refresh rate which make my eyes unconfortable, compiz's magnifying plugs which I'm using now is OK,but has no function of auto focus(focus auto following). iOS provides quite perfect solution for me with full screen magnifying, especially on ipad's 9.7 inches screen. there auto focus is not necessary because I hardly use them to code or do other edit stuff. Android provides very little accessibility functions, only like shake feedback, which is useless for me. there is no any kind of good magnifying tools on android , not to mention advance function like full screen magnify on iOS. I used to study Qt, want to build a useful magnify tools on linux, even on android. But hardly have some progress.

For Python, I haven't found an OpenCV function that provides contrast. As others have suggested, there are some techniques to automatically increase contrast using a very simple formula.

In the official OpenCV docs, it is suggested that this equation can be used to apply both contrast and brightness at the same time:

new_img = alpha*old_img + beta

where alpha corresponds to a contrast and beta is brightness. Different cases

alpha 1  beta 0      --> no change  
0 < alpha < 1        --> lower contrast  
alpha > 1            --> higher contrast  
-127 < beta < +127   --> good range for brightness values

In C/C++, you can implement this equation using cv::Mat::convertTo, but we don't have access to that part of the library from Python. To do it in Python, I would recommend using the cv::addWeighted function, because it is quick and it automatically forces the output to be in the range 0 to 255 (e.g. for a 24 bit color image, 8 bits per channel). You could also use convertScaleAbs as suggested by @nathancy.

import cv2
img = cv2.imread('input.png')
# call addWeighted function. use beta = 0 to effectively only operate one one image
out = cv2.addWeighted( img, contrast, img, 0, brightness)
output = cv2.addWeighted

The above formula and code is quick to write and will make changes to brightness and contrast. But they yield results that are significantly different than photo editing programs. The rest of this answer will yield a result that will reproduce the behavior in the GIMP and also LibreOffice brightness and contrast. It's more lines of code, but it gives a nice result.

Contrast

In the GIMP, contrast levels go from -127 to +127. I adapted the formulas from here to fit in that range.

f = 131*(contrast + 127)/(127*(131-contrast))
new_image = f*(old_image - 127) + 127 = f*(old_image) + 127*(1-f)

To figure out brightness, I figured out the relationship between brightness and levels and used information in this levels post to arrive at a solution.

#pseudo code
if brightness > 0
    shadow = brightness
    highlight = 255
else:
    shadow = 0
    highlight = 255 + brightness
new_img = ((highlight - shadow)/255)*old_img + shadow

brightness and contrast in Python and OpenCV

Putting it all together and adding using the reference "mandrill" image from USC SIPI:

import cv2
import numpy as np

# Open a typical 24 bit color image. For this kind of image there are
# 8 bits (0 to 255) per color channel
img = cv2.imread('mandrill.png')  # mandrill reference image from USC SIPI

s = 128
img = cv2.resize(img, (s,s), 0, 0, cv2.INTER_AREA)

def apply_brightness_contrast(input_img, brightness = 0, contrast = 0):
    
    if brightness != 0:
        if brightness > 0:
            shadow = brightness
            highlight = 255
        else:
            shadow = 0
            highlight = 255 + brightness
        alpha_b = (highlight - shadow)/255
        gamma_b = shadow
        
        buf = cv2.addWeighted(input_img, alpha_b, input_img, 0, gamma_b)
    else:
        buf = input_img.copy()
    
    if contrast != 0:
        f = 131*(contrast + 127)/(127*(131-contrast))
        alpha_c = f
        gamma_c = 127*(1-f)
        
        buf = cv2.addWeighted(buf, alpha_c, buf, 0, gamma_c)

    return buf


font = cv2.FONT_HERSHEY_SIMPLEX
fcolor = (0,0,0)

blist = [0, -127, 127,   0,  0, 64] # list of brightness values
clist = [0,    0,   0, -64, 64, 64] # list of contrast values


out = np.zeros((s*2, s*3, 3), dtype = np.uint8)

for i, b in enumerate(blist):
    c = clist[i]
    print('b, c:  ', b,', ',c)
    row = s*int(i/3)
    col = s*(i%3)
    
    print('row, col:   ', row, ', ', col)
    
    out[row:row+s, col:col+s] = apply_brightness_contrast(img, b, c)
    msg = 'b %d' % b
    cv2.putText(out,msg,(col,row+s-22), font, .7, fcolor,1,cv2.LINE_AA)
    msg = 'c %d' % c
    cv2.putText(out,msg,(col,row+s-4), font, .7, fcolor,1,cv2.LINE_AA)
    
    cv2.putText(out, 'OpenCV',(260,30), font, 1.0, fcolor,2,cv2.LINE_AA)

cv2.imwrite('out.png', out)

I manually processed the images in the GIMP and added text tags in Python/OpenCV:

Note: @UtkarshBhardwaj has suggested that Python 2.x users must cast the contrast correction calculation code into float for getting floating result, like so:

...
if contrast != 0:
        f = float(131*(contrast + 127))/(127*(131-contrast))
...

The string splitting is required in many cases like where you have to sort the characters of the string given, replacing a character with an another character etc. But all these operations can be performed with the following mentioned string splitting methods.

The string splitting can be done in two ways:

1. Slicing the given string based on the length of split.

2. Converting the given string to a list with list(str) function, where characters of the string breakdown to form the the elements of a list. Then do the required operation and join them with 'specified character between the characters of the original string'.join(list) to get a new processed string.

Here is a good solution:

FUNCTION comma_to_table(iv_raw IN VARCHAR2) RETURN dbms_utility.lname_array IS
   ltab_lname dbms_utility.lname_array;
   ln_len     BINARY_INTEGER;
BEGIN
   dbms_utility.comma_to_table(list   => iv_raw
                              ,tablen => ln_len
                              ,tab    => ltab_lname);
   FOR i IN 1 .. ln_len LOOP
      dbms_output.put_line('element ' || i || ' is ' || ltab_lname(i));
   END LOOP;
   RETURN ltab_lname;
END;

Source: CSV - comma separated values - and PL/SQL (link no longer valid)

I used Hyperlink instead of LinkButton and it worked just fine, it has the Target property so it solved my problem. There was the solution with Response.Write but that was messing up my layout, and the one with ScriptManager, at every refresh or back was reopening the window. So this is how I solved it:

<asp:HyperLink CssClass="hlk11" ID="hlkLink" runat="server" Text='<%# Eval("LinkText") %>' Visible='<%# !(bool)Eval("IsDocument") %>' Target="_blank" NavigateUrl='<%# Eval("WebAddress") %>'></asp:HyperLink>

I solved this another way. Let's say you have your dependency.js

export const myFunction = () => { }

I create a depdency.mock.js file besides it with the following content:

export const mockFunction = jest.fn();

jest.mock('dependency.js', () => ({ myFunction: mockFunction }));

And in the test, before I import the file that has the dependency, I use:

import { mockFunction } from 'dependency.mock'
import functionThatCallsDep from './tested-code'

it('my test', () => {
    mockFunction.returnValue(false);

    functionThatCallsDep();

    expect(mockFunction).toHaveBeenCalled();

})

(1) How do I ... build those URI's? Do I need to write a PHP code at that URI?

There is no standard for how an API URI scheme should be set up, but it's common to have slash-separated values. For this you can use...

$apiArgArray = explode("/", substr(@$_SERVER['PATH_INFO'], 1));

...to get an array of slash-separated values in the URI after the file name.

Example: Assuming you have an API file api.php in your application somewhere and you do a request for api.php/members/3, then $apiArgArray will be an array containing ['members', '3']. You can then use those values to query your database or do other processing.

(2) How do I build the JSON objects to return as a response?

You can take any PHP object and turn it into JSON with json_encode. You'll also want to set the appropriate header.

header('Content-Type: application/json');
$myObject = (object) array( 'property' => 'value' ); // example
echo json_encode($myObject); // outputs JSON text

All this is good for an API that returns JSON, but the next question you should ask is:

(3) How do I make my API RESTful?

For that we'll use $_SERVER['REQUEST_METHOD'] to get the method being used, and then do different things based on that. So the final result is something like...

header('Content-Type: application/json');
$apiArgArray = explode("/", substr(@$_SERVER['PATH_INFO'], 1));
$returnObject = (object) array();
/* Based on the method, use the arguments to figure out
   whether you're working with an individual or a collection, 
   then do your processing, and ultimately set $returnObject */
switch ($_SERVER['REQUEST_METHOD']) {
  case 'GET':
    // List entire collection or retrieve individual member
    break;
  case 'PUT':       
    // Replace entire collection or member
    break;  
  case 'POST':      
    // Create new member
    break;
  case 'DELETE':    
    // Delete collection or member
    break;
}
echo json_encode($returnObject);

Sources: https://stackoverflow.com/a/897311/1766230 and http://en.wikipedia.org/wiki/Representational_state_transfer#Applied_to_web_services

try

<img src="https://cdn.glitch.com/0e4d1ff3-5897-47c5-9711-d026c01539b8%2Fbddfd6e4434f42662b009295c9bab86e.gif?v=1573157191712" alt="this slowpoke moves"  width="250" alt="404 image"/>

and switch the src with your source. If the alt pops up, try a different url. If it doesn't work, restart your computer or switch your browser.

Very simple, you close it :)

var myWebSocket = new WebSocket("ws://example.org"); 
myWebSocket.send("Hello Web Sockets!"); 
myWebSocket.close();

Did you check also the following site And check the introduction article of Opera

A single css code on hover can do the trick: box-shadow: inset 100px 0 0 0 #e0e0e0;

A complete demo can be found in my fiddle:

https://jsfiddle.net/shuvamallick/3o0h5oka/

For those of us still lagging behind on Swift 2.3 here is Gordon's answer in our syntax:

let email = "[email protected]"
if let url = NSURL(string: "mailto:\(email)") {
   UIApplication.sharedApplication().openURL(url)
}

https://www.npmjs.com/package/crypto-extra has a method for it :)

var value = crypto.random(/* desired length */)

Kotlin? Here we go:

android {

    // ... (compileSdkVersion, buildToolsVersion, etc)

    defaultConfig {

        // ... (applicationId, miSdkVersion, etc)

        kapt {
            arguments {
                arg("room.schemaLocation", "$projectDir/schemas")
            }
        }
    }

    buildTypes {
        // ... (buildTypes, compileOptions, etc)
    }
}

//...

Don't forget about plugin:

apply plugin: 'kotlin-kapt'

For more information about kotlin annotation processor please visit: Kotlin docs

put .gitignore in your main catalog

git status (you will see which files you can commit)
git add -A
git commit -m "message"
git push

Have you considered doing this from the layout.xml ? You could set for your ImageView the ScaleType to android:scaleType="centerCrop" and set the dimensions of the image in the ImageView inside the layout.xml.

Instead of JSONObject , you can use ObjectMapper to convert java object to json string

ObjectMapper mapper = new ObjectMapper();
String requestBean = mapper.writeValueAsString(yourObject);

Suppose gamma1 and gamma2 are two such columns for which df.isnull().any() gives True value , the following code can be used to print the rows.

bool1 = pd.isnull(df['gamma1'])
bool2 = pd.isnull(df['gamma2'])
df[bool1]
df[bool2]

Try this, to set the focus to the first input field:

$(this).parent().siblings('div.bottom').find("input.post").focus();

Xcode 10, Swift 4

Wrapping the Text for a label can also be done on Storyboard by selecting the Label, and using Attributes Inspector.

Lines = 0 Linebreak = Word Wrap

Try this code. It works for me:

unzip(zipfile="<directory and filename>",
      exdir="<directory where the content will be extracted>")

Example:

unzip(zipfile="./data/Data.zip",exdir="./data")

I've downloaded these packages:

• libc6-i386
• lib32stdc++6
• lib32gcc1
• lib32ncurses5
• zlib1g

I then unpacked them and added the directories to LD_LIBRARY_PATH in my ~/.bashrc. Just make sure to add proper dirs to the path.

Please see my answer here. As dreamwerx.myopenid.com points out, it is possible to do this with SimpleXML, but the DOM extension would be the better and more flexible way. Additionally there is a third way: using XMLWriter. It's much more simple to use than the DOM and therefore it's my preferred way of writing XML documents from scratch.

$w=new XMLWriter();
$w->openMemory();
$w->startDocument('1.0','UTF-8');
$w->startElement("root");
    $w->writeAttribute("ah", "OK");
    $w->text('Wow, it works!');
$w->endElement();
echo htmlentities($w->outputMemory(true));

By the way: DOM stands for Document Object Model; this is the standardized API into XML documents.

DateTime.Now returns a DateTime value that consists of the local date and time of the computer where the code is running. It has DateTimeKind.Local assigned to its Kind property. It is equivalent to calling any of the following:

• DateTime.UtcNow.ToLocalTime()
• DateTimeOffset.UtcNow.LocalDateTime
• DateTimeOffset.Now.LocalDateTime
• TimeZoneInfo.ConvertTime(DateTime.UtcNow, TimeZoneInfo.Local)
• TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, TimeZoneInfo.Local)

DateTime.Today returns a DateTime value that has the same year, month, and day components as any of the above expressions, but with the time components set to zero. It also has DateTimeKind.Local in its Kind property. It is equivalent to any of the following:

• DateTime.Now.Date
• DateTime.UtcNow.ToLocalTime().Date
• DateTimeOffset.UtcNow.LocalDateTime.Date
• DateTimeOffset.Now.LocalDateTime.Date
• TimeZoneInfo.ConvertTime(DateTime.UtcNow, TimeZoneInfo.Local).Date
• TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, TimeZoneInfo.Local).Date

Note that internally, the system clock is in terms of UTC, so when you call DateTime.Now it first gets the UTC time (via the GetSystemTimeAsFileTime function in the Win32 API) and then it converts the value to the local time zone. (Therefore DateTime.Now.ToUniversalTime() is more expensive than DateTime.UtcNow.)

Also note that DateTimeOffset.Now.DateTime will have similar values to DateTime.Now, but it will have DateTimeKind.Unspecified rather than DateTimeKind.Local - which could lead to other errors depending on what you do with it.

So, the simple answer is that DateTime.Today is equivalent to DateTime.Now.Date.
But IMHO - You shouldn't use either one of these, or any of the above equivalents.

When you ask for DateTime.Now, you are asking for the value of the local calendar clock of the computer that the code is running on. But what you get back does not have any information about that clock! The best that you get is that DateTime.Now.Kind == DateTimeKind.Local. But whose local is it? That information gets lost as soon as you do anything with the value, such as store it in a database, display it on screen, or transmit it using a web service.

If your local time zone follows any daylight savings rules, you do not get that information back from DateTime.Now. In ambiguous times, such as during a "fall-back" transition, you won't know which of the two possible moments correspond to the value you retrieved with DateTime.Now. For example, say your system time zone is set to Mountain Time (US & Canada) and you ask for DateTime.Now in the early hours of November 3rd, 2013. What does the result 2013-11-03 01:00:00 mean? There are two moments of instantaneous time represented by this same calendar datetime. If I were to send this value to someone else, they would have no idea which one I meant. Especially if they are in a time zone where the rules are different.

The best thing you could do would be to use DateTimeOffset instead:

// This will always be unambiguous.
DateTimeOffset now = DateTimeOffset.Now;

Now for the same scenario I described above, I get the value 2013-11-03 01:00:00 -0600 before the transition, or 2013-11-03 01:00:00 -0700 after the transition. Anyone looking at these values can tell what I meant.

I wrote a blog post on this very subject. Please read - The Case Against DateTime.Now.

Also, there are some places in this world (such as Brazil) where the "spring-forward" transition happens exactly at Midnight. The clocks go from 23:59 to 01:00. This means that the value you get for DateTime.Today on that date, does not exist! Even if you use DateTimeOffset.Now.Date, you are getting the same result, and you still have this problem. It is because traditionally, there has been no such thing as a Date object in .Net. So regardless of how you obtain the value, once you strip off the time - you have to remember that it doesn't really represent "midnight", even though that's the value you're working with.

If you really want a fully correct solution to this problem, the best approach is to use NodaTime. The LocalDate class properly represents a date without a time. You can get the current date for any time zone, including the local system time zone:

using NodaTime;
...

Instant now = SystemClock.Instance.Now;

DateTimeZone zone1 = DateTimeZoneProviders.Tzdb.GetSystemDefault();
LocalDate todayInTheSystemZone = now.InZone(zone1).Date;

DateTimeZone zone2 = DateTimeZoneProviders.Tzdb["America/New_York"];
LocalDate todayInTheOtherZone = now.InZone(zone2).Date;

If you don't want to use Noda Time, there is now another option. I've contributed an implementation of a date-only object to the .Net CoreFX Lab project. You can find the System.Time package object in their MyGet feed. Once added to your project, you will find you can do any of the following:

using System;
...

Date localDate = Date.Today;

Date utcDate = Date.UtcToday;

Date tzSpecificDate = Date.TodayInTimeZone(anyTimeZoneInfoObject);

Firstly, if you are doing this just to prevent people viewing the source of your page - it won't work, because they can always use a keyboard shortcut to view it.

Secondly, you will have to use JavaScript to accomplish this. If the user has JS disabled, you cannot prevent the right click.

That said, add this to your body tag to disable right clicks.

<body oncontextmenu="return false;">

This behavior is explicitly documented in String.split(String regex) (emphasis mine):

This method works as if by invoking the two-argument split method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.

If you want those trailing empty strings included, you need to use String.split(String regex, int limit) with a negative value for the second parameter (limit):

String[] array = values.split("\\|", -1);

Thanks, MEnnabah, just to add to your code where you are missing the = sign in the declaration statement:

let someImageView: UIImageView = {
   let theImageView = UIImageView()
   theImageView.image = UIImage(named: "yourImage.png")
   theImageView.translatesAutoresizingMaskIntoConstraints = false //You need to call this property so the image is added to your view
   return theImageView
}()

Everything else is, all perfect for Swift 3.

Just give them a width and float: left;, here's an example:

<div style="width: 500px;">
 <div style="float: left; width: 200px;">Left Stuff</div>
 <div style="float: left; width: 100px;">Middle Stuff</div>
 <div style="float: left; width: 200px;">Right Stuff</div>
 <br style="clear: left;" />
</div>

try to disabled Dark Mode on Mysql Workbench run this on terminal

defaults write com.oracle.workbench.MySQLWorkbench NSRequiresAquaSystemAppearance -bool yes

When you want to edit something in Angular you need to insert an ngModel in your html

try this in your sample:

    <input type="text" name="abc" class="color" ng-model="myStyle.color">

You don't need to watch the change at all!

From the bash manpage:

${parameter:offset}
${parameter:offset:length}
        Substring  Expansion.   Expands  to  up  to length characters of
        parameter starting at the character  specified  by  offset.
[...]

Or, if you are not sure of having bash, consider using cut.

This is what you want:

>>> string1 = "go"
>>> string2 = "now"
>>> string3 = "great"
>>> mystring = """
... I will {string1} there
... I will go {string2}
... {string3}
... """
>>> locals()
{'__builtins__': <module '__builtin__' (built-in)>, 'string3': 'great', '__package__': None, 'mystring': "\nI will {string1} there\nI will go {string2}\n{string3}\n", '__name__': '__main__', 'string2': 'now', '__doc__': None, 'string1': 'go'}
>>> print(mystring.format(**locals()))

I will go there
I will go now
great

2020 : Similar Issue

If your content is a set of buttons that you want to center on a page, then wrap them in a row and use justify-content-center.

Sample code below:

<div class="row justify-content-center">

    <button>Action A</button>
    <button>Action B</button>
    <button>Action C</button> 

</div>

You're missing the multiplication operator. Also, you want to do 4/3 in floating point, not integer math.

volume = (4.0 / 3) * Math.PI * Math.pow(radius, 3);
           ^^      ^

List<string> accountList = new List<string> {"123872", "987653" , "7625019", "028401"};

int i = accountList.FindIndex(x => x.StartsWith("762"));
//This will give you index of 7625019 in list that is 2. value of i will become 2.
//delegate(string ac)
//{
//    return ac.StartsWith(a.AccountNumber);
//}
//);

I would recommend using INSERT...ON DUPLICATE KEY UPDATE.

If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. But the statement won't generate an error. It generates a warning instead. These cases include:

• Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constraints.
• Inserting a NULL into a column with a NOT NULL constraint.
• Inserting a row to a partitioned table, but the values you insert don't map to a partition.

If you use REPLACE, MySQL actually does a DELETE followed by an INSERT internally, which has some unexpected side effects:

• A new auto-increment ID is allocated.
• Dependent rows with foreign keys may be deleted (if you use cascading foreign keys) or else prevent the REPLACE.
• Triggers that fire on DELETE are executed unnecessarily.
• Side effects are propagated to replicas too.

correction: both REPLACE and INSERT...ON DUPLICATE KEY UPDATE are non-standard, proprietary inventions specific to MySQL. ANSI SQL 2003 defines a MERGE statement that can solve the same need (and more), but MySQL does not support the MERGE statement.

A user tried to edit this post (the edit was rejected by moderators). The edit tried to add a claim that INSERT...ON DUPLICATE KEY UPDATE causes a new auto-increment id to be allocated. It's true that the new id is generated, but it is not used in the changed row.

See demonstration below, tested with Percona Server 5.5.28. The configuration variable innodb_autoinc_lock_mode=1 (the default):

mysql> create table foo (id serial primary key, u int, unique key (u));
mysql> insert into foo (u) values (10);
mysql> select * from foo;
+----+------+
| id | u    |
+----+------+
|  1 |   10 |
+----+------+

mysql> show create table foo\G
CREATE TABLE `foo` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `u` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `u` (`u`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=latin1

mysql> insert into foo (u) values (10) on duplicate key update u = 20;
mysql> select * from foo;
+----+------+
| id | u    |
+----+------+
|  1 |   20 |
+----+------+

mysql> show create table foo\G
CREATE TABLE `foo` (
  `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `u` int(11) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `u` (`u`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=latin1

The above demonstrates that the IODKU statement detects the duplicate, and invokes the update to change the value of u. Note the AUTO_INCREMENT=3 indicates an id was generated, but not used in the row.

Whereas REPLACE does delete the original row and inserts a new row, generating and storing a new auto-increment id:

mysql> select * from foo;
+----+------+
| id | u    |
+----+------+
|  1 |   20 |
+----+------+
mysql> replace into foo (u) values (20);
mysql> select * from foo;
+----+------+
| id | u    |
+----+------+
|  3 |   20 |
+----+------+

Use

__DIR__

to get the current path of the script and this should fix your problem.

So:

require_once(__DIR__.'/../class/user.php');

This will prevent cases where you can run a PHP script from a different folder and therefore the relatives paths will not work.

Edit: slash problem fixed

EL expression:

${requestScope.Error_Message}

There are several implicit objects in JSP EL. See Expression Language under the "Implicit Objects" heading.

You can use the toolchain file mechanism of cmake for this purpose, see e.g. here. You write a toolchain file for each compiler containing the corresponding definitions. At config time, you run e.g

 cmake -DCMAKE_TOOLCHAIN_FILE=/path/to/clang-toolchain.cmake ..

and all the compiler information will be set during the project() call from the toolchain file. Though in the documentation is mentionend only in the context of cross-compiling, it works as well for different compilers on the same system.

You can use the free foxit reader to fill in the forms, and if you pay a little you can design the forms that way you want.

You can also us iText to programmaticly create those forms.

There are free online services that allow you to upload a pdf and you can add fields also.

It depends on how you want to do the designing.

EDIT: If you use foxit reader, you can save any form that is fillable.

Recently refactored to obtain the location of the code, learn some good ideas, and finally achieved a relatively perfect library and Demo.

//request all valid provider(network/gps)
private boolean requestAllProviderUpdates() {
    checkRuntimeEnvironment();
    checkPermission();

    if (isRequesting) {
        EasyLog.d("Request location update is busy");
        return false;
    }


    long minTime = getCheckTimeInterval();
    float minDistance = getCheckMinDistance();

    if (mMapLocationListeners == null) {
        mMapLocationListeners = new HashMap<>();
    }

    mValidProviders = getValidProviders();
    if (mValidProviders == null || mValidProviders.isEmpty()) {
        throw new IllegalArgumentException("Not available provider.");
    }

    for (String provider : mValidProviders) {
        LocationListener locationListener = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                if (location == null) {
                    EasyLog.e("LocationListener callback location is null.");
                    return;
                }
                printf(location);
                mLastProviderTimestamp = location.getTime();

                if (location.getProvider().equals(LocationManager.GPS_PROVIDER)) {
                    finishResult(location);
                } else {
                    doLocationResult(location);
                }

                removeProvider(location.getProvider());
                if (isEmptyValidProviders()) {
                    requestTimeoutMsgInit();
                    removeUpdates();
                }
            }

            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {
            }

            @Override
            public void onProviderEnabled(String provider) {
            }

            @Override
            public void onProviderDisabled(String provider) {
            }
        };
        getLocationManager().requestLocationUpdates(provider, minTime, minDistance, locationListener);
        mMapLocationListeners.put(provider, locationListener);
        EasyLog.d("Location request %s provider update.", provider);
    }
    isRequesting = true;
    return true;
}

//remove request update
public void removeUpdates() {
    checkRuntimeEnvironment();

    LocationManager locationManager = getLocationManager();
    if (mMapLocationListeners != null) {
        Set<String> keys = mMapLocationListeners.keySet();
        for (String key : keys) {
            LocationListener locationListener = mMapLocationListeners.get(key);
            if (locationListener != null) {
                locationManager.removeUpdates(locationListener);
                EasyLog.d("Remove location update, provider is " + key);
            }
        }
        mMapLocationListeners.clear();
        isRequesting = false;
    }
}

//Compared with the last successful position, to determine whether you need to filter
private boolean isNeedFilter(Location location) {
    checkLocation(location);

    if (mLastLocation != null) {
        float distance = location.distanceTo(mLastLocation);
        if (distance < getCheckMinDistance()) {
            return true;
        }
        if (location.getAccuracy() >= mLastLocation.getAccuracy()
                && distance < location.getAccuracy()) {
            return true;
        }
        if (location.getTime() <= mLastProviderTimestamp) {
            return true;
        }
    }
    return false;
}

private void doLocationResult(Location location) {
    checkLocation(location);

    if (isNeedFilter(location)) {
        EasyLog.d("location need to filtered out, timestamp is " + location.getTime());
        finishResult(mLastLocation);
    } else {
        finishResult(location);
    }
}

//Return to the finished position
private void finishResult(Location location) {
    checkLocation(location);

    double latitude = location.getLatitude();
    double longitude = location.getLongitude();
    float accuracy = location.getAccuracy();
    long time = location.getTime();
    String provider = location.getProvider();

    if (mLocationResultListeners != null && !mLocationResultListeners.isEmpty()) {
        String format = "Location result:<%f, %f> Accuracy:%f Time:%d Provider:%s";
        EasyLog.i(String.format(format, latitude, longitude, accuracy, time, provider));

        mLastLocation = location;
        synchronized (this) {
            Iterator<LocationResultListener> iterator =  mLocationResultListeners.iterator();
            while (iterator.hasNext()) {
                LocationResultListener listener = iterator.next();
                if (listener != null) {
                    listener.onResult(location);
                }
                iterator.remove();
            }
        }
    }
}

Complete code: https://github.com/bingerz/FastLocation/blob/master/fastlocationlib/src/main/java/cn/bingerz/fastlocation/FastLocation.java

*Each request to complete the location, it is best to removeUpdates, otherwise the phone status bar will always display the positioning icon.

http://php.net/manual/en/function.strtotime.php or if you need to not use a string but time components instead, then http://us.php.net/manual/en/function.mktime.php

You can add the script tags like how we use in the asp.net while doing client side validations like below.

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>
<script type="text/javascript" src="~/Scripts/jquery-3.1.1.min.js"></script>
<script type="text/javascript">
    $(function () {
       //Your code
    });
</script>

GregorianCalendar c = GregorianCalendar.from((LocalDate.parse("2016-06-22")).atStartOfDay(ZoneId.systemDefault()));
XMLGregorianCalendar date2 = DatatypeFactory.newInstance().newXMLGregorianCalendar(c);

My solution:

1. on polymer raise an event (eg. complete)
2. define a directive linking the event to control function

Directive

/*global define */
define(['angular', './my-module'], function(angular, directives) {
    'use strict';
    directives.directive('polimerBinding', ['$compile', function($compile) {

            return {
                 restrict: 'A',
                scope: { 
                    method:'&polimerBinding'
                },
                link : function(scope, element, attrs) {
                    var el = element[0];
                    var expressionHandler = scope.method();
                    var siemEvent = attrs['polimerEvent'];
                    if (!siemEvent) {
                        siemEvent = 'complete';
                    }
                    el.addEventListener(siemEvent, function (e, options) {
                        expressionHandler(e.detail);
                    })
                }
            };
        }]);
});

Polymer component

<dom-module id="search">

<template>
<h3>Search</h3>
<div class="input-group">

    <textarea placeholder="search by expression (eg. temperature>100)"
        rows="10" cols="100" value="{{text::input}}"></textarea>
    <p>
        <button id="button" class="btn input-group__addon">Search</button>
    </p>
</div>
</template>

 <script>
  Polymer({
    is: 'search',
            properties: {
      text: {
        type: String,
        notify: true
      },

    },
    regularSearch: function(e) {
      console.log(this.range);
      this.fire('complete', {'text': this.text});
    },
    listeners: {
        'button.click': 'regularSearch',
    }
  });
</script>

</dom-module>

Page

 <search id="search" polimer-binding="searchData"
 siem-event="complete" range="{{range}}"></siem-search>

searchData is the control function

$scope.searchData = function(searchObject) {
                    alert('searchData '+ searchObject.text + ' ' + searchObject.range);

}

try

$locationProvider.html5Mode(true)

More info at $locationProvider
Using $location

read -p "Are you sure? " -n 1 -r
echo    # (optional) move to a new line
if [[ $REPLY =~ ^[Yy]$ ]]
then
    # do dangerous stuff
fi

I incorporated levislevis85's suggestion (thanks!) and added the -n option to read to accept one character without the need to press Enter. You can use one or both of these.

Also, the negated form might look like this:

read -p "Are you sure? " -n 1 -r
echo    # (optional) move to a new line
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
    [[ "$0" = "$BASH_SOURCE" ]] && exit 1 || return 1 # handle exits from shell or function but don't exit interactive shell
fi

However, as pointed out by Erich, under some circumstances such as a syntax error caused by the script being run in the wrong shell, the negated form could allow the script to continue to the "dangerous stuff". The failure mode should favor the safest outcome so only the first, non-negated if should be used.

Explanation:

The read command outputs the prompt (-p "prompt") then accepts one character (-n 1) and accepts backslashes literally (-r) (otherwise read would see the backslash as an escape and wait for a second character). The default variable for read to store the result in is $REPLY if you don't supply a name like this: read -p "my prompt" -n 1 -r my_var

The if statement uses a regular expression to check if the character in $REPLY matches (=~) an upper or lower case "Y". The regular expression used here says "a string starting (^) and consisting solely of one of a list of characters in a bracket expression ([Yy]) and ending ($)". The anchors (^ and $) prevent matching longer strings. In this case they help reinforce the one-character limit set in the read command.

The negated form uses the logical "not" operator (!) to match (=~) any character that is not "Y" or "y". An alternative way to express this is less readable and doesn't as clearly express the intent in my opinion in this instance. However, this is what it would look like: if [[ $REPLY =~ ^[^Yy]$ ]]

This is because of your long project directory name, which gives you a very long CLASSPATH altogether. Either you need to reduce jars added at CLASSPATH (make sure removing unnecessary jars only) Or the best way is to reduce the project directory and import the project again. This will reduce the CLASSPATH. It worked for me.

After some research and testing, I found that I had some misunderstandings about the lifetime of Docker containers. Simply restarting a container doesn't make Docker use a new image, when the image was rebuilt in the meantime. Instead, Docker is fetching the image only before creating the container. So the state after running a container is persistent.

Why removing is required

Therefore, rebuilding and restarting isn't enough. I thought containers works like a service: Stopping the service, do your changes, restart it and they would apply. That was my biggest mistake.

Because containers are permanent, you have to remove them using docker rm <ContainerName> first. After a container is removed, you can't simply start it by docker start. This has to be done using docker run, which itself uses the latest image for creating a new container-instance.

Containers should be as independent as possible

With this knowledge, it's comprehensible why storing data in containers is qualified as bad practice and Docker recommends data volumes/mounting host directorys instead: Since a container has to be destroyed to update applications, the stored data inside would be lost too. This cause extra work to shutdown services, backup data and so on.

So it's a smart solution to exclude those data completely from the container: We don't have to worry about our data, when its stored safely on the host and the container only holds the application itself.

Why -rf may not really help you

The docker run command, has a Clean up switch called -rf. It will stop the behavior of keeping docker containers permanently. Using -rf, Docker will destroy the container after it has been exited. But this switch has two problems:

1. Docker also remove the volumes without a name associated with the container, which may kill your data
2. Using this option, its not possible to run containers in the background using -d switch

While the -rf switch is a good option to save work during development for quick tests, it's less suitable in production. Especially because of the missing option to run a container in the background, which would mostly be required.

How to remove a container

We can bypass those limitations by simply removing the container:

docker rm --force <ContainerName>

The --force (or -f) switch which use SIGKILL on running containers. Instead, you could also stop the container before:

docker stop <ContainerName>
docker rm <ContainerName>

Both are equal. docker stop is also using SIGTERM. But using --force switch will shorten your script, especially when using CI servers: docker stop throws an error if the container is not running. This would cause Jenkins and many other CI servers to consider the build wrongly as failed. To fix this, you have to check first if the container is running as I did in the question (see containerRunning variable).

Full script for rebuilding a Docker container

According to this new knowledge, I fixed my script in the following way:

#!/bin/bash
imageName=xx:my-image
containerName=my-container

docker build -t $imageName -f Dockerfile  .

echo Delete old container...
docker rm -f $containerName

echo Run new container...
docker run -d -p 5000:5000 --name $containerName $imageName

This works perfectly :)

Look into the String#capitalize method.

http://www.ruby-doc.org/core-1.9.3/String.html#method-i-capitalize

This is a late answer but if anyone reading this question is using razor, what you should remember is that razor encodes everything by default, but by using MvcHtmlString in your html helpers you can tell razor that it doesn't need to encode it.

If you want razor to not encode a string use

@Html.Raw("<span>hi</span>")

Decompiling Raw(), shows us that it's wrapping the string in a HtmlString

public IHtmlString Raw(string value) {
    return new HtmlString(value); 
}

"HtmlString only exists in ASP.NET 4.

MvcHtmlString was a compatibility shim added to MVC 2 to support both .NET 3.5 and .NET 4. Now that MVC 3 is .NET 4 only, it's a fairly trivial subclass of HtmlString presumably for MVC 2->3 for source compatibility." source

Another way of configuring backup options is via the Customize interface. Enter:

M-x customize-group

And then at the Customize group: prompt enter backup.

If you scroll to the bottom of the buffer you'll see Backup Directory Alist. Click Show Value and set the first entry of the list as follows:

Regexp matching filename: .*
Backup directory name: /path/to/your/backup/dir

Alternatively, you can turn backups off my setting Make Backup Files to off.

If you don't want Emacs to automatically edit your .emacs file you'll want to set up a customisations file.

The current draft of CSS Selectors Level 4 specifies structural selectors for grids. If implemented, we will be able to do things like:

th.price,
th.price || td {
    text-align: right;
}

Of course, that doesn't help us today -- the other answers here offer enough practical advice for that.

For everyone who don't panic with the error message itself, but just googling for the explanation why example from here doesn't work (i.e dynamical filtering doesn't occur when the text is typed into the input field): it will not work until you will add the name parameter in the input field. Nothing points to the explanation why pipe isn't working, but the error message points to this topic and fixing it according to the accepted answer makes the dynamical filter working.

This works for me.

new Thread(() =>
        {

        Thread.CurrentThread.IsBackground = false;
        Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Background, (SendOrPostCallback)delegate {

          //Your Code here.

        }, null);
        }).Start();

Acepted solution implemented in PyQt5

import sys
from PyQt5.QtWidgets import QApplication, QDialog, QFormLayout
from PyQt5.QtWidgets import (QPushButton, QLineEdit)

class Form(QDialog):
    def __init__(self, parent=None):
        super(Form, self).__init__(parent)

        self.le = QLineEdit()
        self.le.setObjectName("host")
        self.le.setText("Host")

        self.pb = QPushButton()
        self.pb.setObjectName("connect")
        self.pb.setText("Connect")
        self.pb.clicked.connect(self.button_click)

        layout = QFormLayout()
        layout.addWidget(self.le)
        layout.addWidget(self.pb)
        self.setLayout(layout)

        self.setWindowTitle("Learning")

    def button_click(self):
        # shost is a QString object
        shost = self.le.text()
        print (shost)


app = QApplication(sys.argv)
form = Form()
form.show()
app.exec_()

I had this problem. I had to make my class extend ListActivity rather than Activity, and rename my list in the XML to android:id="@android:id/list"

find . -size +10000k -exec ls -sd {} +

If your version of find won't accept the + notation (which acts rather like xargs does), then you might use (GNU find and xargs, so find probably supports + anyway):

find . -size +10000k -print0 | xargs -0 ls -sd

or you might replace the + with \; (and live with the relative inefficiency of this), or you might live with problems caused by spaces in names and use the portable:

find . -size +10000k -print | xargs ls -sd

The -d on the ls commands ensures that if a directory is ever found (unlikely, but...), then the directory information will be printed, not the files in the directory. And, if you're looking for files more than 1 MB (as a now-deleted comment suggested), you need to adjust the +10000k to 1000k or maybe +1024k, or +2048 (for 512-byte blocks, the default unit for -size). This will list the size and then the file name. You could avoid the need for -d by adding -type f to the find command, of course.

You can install your iOS app without iTunes, App store, or third party sites.

When you build the archive in xcode you can select for adhoc distribution. xcode will bring you through a dialogue where you enter the URL location where your app will be along with the urls for a 57x57 pixel png and a 512x512 pixel png. It will create a bundle with your ipa and manifest.plist

Upload your ipa and the two png files whereever you plan to host them. It has to have an SSL certificate and be served over https. You may want to upload your manifest.plist there as well, but technically I'm pretty sure you can have it somewhere else.

Next, somewhere, in a text, or a webpage or email, or whereever share your link as:

<a href="itms-services://?action=download-manifest&url=https://URL/path/manifest.plist">Download anchor text</a>

For a longer, better, more detailed answer click here.

As I understand, if this is a dev app, only devices that have been added to your device profile in the app store will be able to install the app.

SELECT SCHEMA_NAME(schema_id) AS schema_name
,name AS view_name
,OBJECTPROPERTYEX(OBJECT_ID,'IsIndexed') AS IsIndexed
,OBJECTPROPERTYEX(OBJECT_ID,'IsIndexable') AS IsIndexable
FROM sys.views

This works for me

1. Uninstall the app from your phone
2. cd android
3. gradlew clean
4. cd ..
5. react-native run-android

I found useful the Java SE's SimpleDateFormat class described on Oracle's specification: http://goo.gl/7MbCh5. In my case in Google Apps Script it worked like this:

function getWeekNumber() {
  var weekNum = parseInt(Utilities.formatDate(new Date(), "GMT", "w"));
  Logger.log(weekNum);
}

For example in a spreadsheet macro you can retrieve the actual timezone of the file:

function getWeekNumber() {
  var weekNum = parseInt(Utilities.formatDate(new Date(), SpreadsheetApp.getActiveSpreadsheet().getSpreadsheetTimeZone(), "w"));
  Logger.log(weekNum);
}

This file is automatically created and used by npm to keep track of your package installations and to better manage the state and history of your project’s dependencies. You shouldn’t alter the contents of this file.

In c++, compiler always ensure that functions in object hierarchy are called successfully. These functions are constructors and destructors and object hierarchy means inheritance tree.

According to this rule we can guess compiler will call constructors and destructors for each object in inheritance hierarchy even if we don't implement it. To perform this operation compiler will synthesize the undefined constructors and destructors for us and we name them as a default constructors and destructors.Then, compiler will call default constructor of base class and then calls constructor of derived class.

In your case you don't call base class constructor but compiler does that for you by calling default constructor of base class because if compiler didn't do it your derived class which is Rectangle in your example will not be complete and it might cause disaster because maybe you will use some member function of base class in your derived class. So for the sake of safety compiler always need all constructor calls.

JTextField allows us to getText() and setText() these are used to get and set the contents of the text field, for example.

text = texfield.getText();

hope this helps

You could use XDocument:

new XDocument(
    new XElement("root", 
        new XElement("someNode", "someValue")    
    )
)
.Save("foo.xml");

If the file you want to create is very big and cannot fit into memory you might use XmlWriter.

Here is another possible solution, using the resolve attribute of the $stateProvider or the $routeProvider. Example with $stateProvider:

.config(["$stateProvider", function ($stateProvider) {

  $stateProvider

  .state("forbidden", {
    /* ... */
  })

  .state("signIn", {
    /* ... */
    resolve: {
      access: ["Access", function (Access) { return Access.isAnonymous(); }],
    }
  })

  .state("home", {
    /* ... */
    resolve: {
      access: ["Access", function (Access) { return Access.isAuthenticated(); }],
    }
  })

  .state("admin", {
    /* ... */
    resolve: {
      access: ["Access", function (Access) { return Access.hasRole("ROLE_ADMIN"); }],
    }
  });

}])

Access resolves or rejects a promise depending on the current user rights:

.factory("Access", ["$q", "UserProfile", function ($q, UserProfile) {

  var Access = {

    OK: 200,

    // "we don't know who you are, so we can't say if you're authorized to access
    // this resource or not yet, please sign in first"
    UNAUTHORIZED: 401,

    // "we know who you are, and your profile does not allow you to access this resource"
    FORBIDDEN: 403,

    hasRole: function (role) {
      return UserProfile.then(function (userProfile) {
        if (userProfile.$hasRole(role)) {
          return Access.OK;
        } else if (userProfile.$isAnonymous()) {
          return $q.reject(Access.UNAUTHORIZED);
        } else {
          return $q.reject(Access.FORBIDDEN);
        }
      });
    },

    hasAnyRole: function (roles) {
      return UserProfile.then(function (userProfile) {
        if (userProfile.$hasAnyRole(roles)) {
          return Access.OK;
        } else if (userProfile.$isAnonymous()) {
          return $q.reject(Access.UNAUTHORIZED);
        } else {
          return $q.reject(Access.FORBIDDEN);
        }
      });
    },

    isAnonymous: function () {
      return UserProfile.then(function (userProfile) {
        if (userProfile.$isAnonymous()) {
          return Access.OK;
        } else {
          return $q.reject(Access.FORBIDDEN);
        }
      });
    },

    isAuthenticated: function () {
      return UserProfile.then(function (userProfile) {
        if (userProfile.$isAuthenticated()) {
          return Access.OK;
        } else {
          return $q.reject(Access.UNAUTHORIZED);
        }
      });
    }

  };

  return Access;

}])

UserProfile copies the current user properties, and implement the $hasRole, $hasAnyRole, $isAnonymous and $isAuthenticated methods logic (plus a $refresh method, explained later):

.factory("UserProfile", ["Auth", function (Auth) {

  var userProfile = {};

  var clearUserProfile = function () {
    for (var prop in userProfile) {
      if (userProfile.hasOwnProperty(prop)) {
        delete userProfile[prop];
      }
    }
  };

  var fetchUserProfile = function () {
    return Auth.getProfile().then(function (response) {
      clearUserProfile();
      return angular.extend(userProfile, response.data, {

        $refresh: fetchUserProfile,

        $hasRole: function (role) {
          return userProfile.roles.indexOf(role) >= 0;
        },

        $hasAnyRole: function (roles) {
          return !!userProfile.roles.filter(function (role) {
            return roles.indexOf(role) >= 0;
          }).length;
        },

        $isAnonymous: function () {
          return userProfile.anonymous;
        },

        $isAuthenticated: function () {
          return !userProfile.anonymous;
        }

      });
    });
  };

  return fetchUserProfile();

}])

Auth is in charge of requesting the server, to know the user profile (linked to an access token attached to the request for example):

.service("Auth", ["$http", function ($http) {

  this.getProfile = function () {
    return $http.get("api/auth");
  };

}])

The server is expected to return such a JSON object when requesting GET api/auth:

{
  "name": "John Doe", // plus any other user information
  "roles": ["ROLE_ADMIN", "ROLE_USER"], // or any other role (or no role at all, i.e. an empty array)
  "anonymous": false // or true
}

Finally, when Access rejects a promise, if using ui.router, the $stateChangeError event will be fired:

.run(["$rootScope", "Access", "$state", "$log", function ($rootScope, Access, $state, $log) {

  $rootScope.$on("$stateChangeError", function (event, toState, toParams, fromState, fromParams, error) {
    switch (error) {

    case Access.UNAUTHORIZED:
      $state.go("signIn");
      break;

    case Access.FORBIDDEN:
      $state.go("forbidden");
      break;

    default:
      $log.warn("$stateChangeError event catched");
      break;

    }
  });

}])

If using ngRoute, the $routeChangeError event will be fired:

.run(["$rootScope", "Access", "$location", "$log", function ($rootScope, Access, $location, $log) {

  $rootScope.$on("$routeChangeError", function (event, current, previous, rejection) {
    switch (rejection) {

    case Access.UNAUTHORIZED:
      $location.path("/signin");
      break;

    case Access.FORBIDDEN:
      $location.path("/forbidden");
      break;

    default:
      $log.warn("$stateChangeError event catched");
      break;

    }
  });

}])

The user profile can also be accessed in the controllers:

.state("home", {
  /* ... */
  controller: "HomeController",
  resolve: {
    userProfile: "UserProfile"
  }
})

UserProfile then contains the properties returned by the server when requesting GET api/auth:

.controller("HomeController", ["$scope", "userProfile", function ($scope, userProfile) {

  $scope.title = "Hello " + userProfile.name; // "Hello John Doe" in the example

}])

UserProfile needs to be refreshed when a user signs in or out, so that Access can handle the routes with the new user profile. You can either reload the whole page, or call UserProfile.$refresh(). Example when signing in:

.service("Auth", ["$http", function ($http) {

  /* ... */

  this.signIn = function (credentials) {
    return $http.post("api/auth", credentials).then(function (response) {
      // authentication succeeded, store the response access token somewhere (if any)
    });
  };

}])

.state("signIn", {
  /* ... */
  controller: "SignInController",
  resolve: {
    /* ... */
    userProfile: "UserProfile"
  }
})

.controller("SignInController", ["$scope", "$state", "Auth", "userProfile", function ($scope, $state, Auth, userProfile) {

  $scope.signIn = function () {
    Auth.signIn($scope.credentials).then(function () {
      // user successfully authenticated, refresh UserProfile
      return userProfile.$refresh();
    }).then(function () {
      // UserProfile is refreshed, redirect user somewhere
      $state.go("home");
    });
  };

}])

If you have already installed all your dependencies, and you want to avoid having to download your production packages from NPM again, you can simply type:

npm prune --production

This will remove your dev dependencies from your node_modules folder, which is helpful if you're trying to automate a two step process like

1. Webpack my project, using dev dependencies
2. Build a Docker image using only production modules

Running npm prune in between will save you from having to reinstall everything!

Place the image in a source folder, not a regular folder. That is: right-click on project -> New -> Source Folder. Place the image in that source folder. Then:

InputStream input = classLoader.getResourceAsStream("image.jpg");

Note that the path is omitted. That's because the image is directly in the root of the path. You can add folders under your source folder to break it down further if you like. Or you can put the image under your existing source folder (usually called src).

Minimal runnable POSIX read + write example

Usage:

1. get two computers on a LAN.

   For example, this will work if both computers are connected to your home router in most cases, which is how I tested it.

2. On the server computer:

   1. Find the server local IP with ifconfig, e.g. 192.168.0.10

   2. Run:

      ./server output.tmp 12345
      

3. On the client computer:

   printf 'ab\ncd\n' > input.tmp
   ./client input.tmp 192.168.0.10 12345
   

4. Outcome: a file output.tmp is created on the sever computer containing 'ab\ncd\n'!

server.c

/*
Receive a file over a socket.

Saves it to output.tmp by default.

Interface:

    ./executable [<output_file> [<port>]]

Defaults:

- output_file: output.tmp
- port: 12345
*/

#define _XOPEN_SOURCE 700

#include <stdio.h>
#include <stdlib.h>

#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h> /* getprotobyname */
#include <netinet/in.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <unistd.h>

int main(int argc, char **argv) {
    char *file_path = "output.tmp";
    char buffer[BUFSIZ];
    char protoname[] = "tcp";
    int client_sockfd;
    int enable = 1;
    int filefd;
    int i;
    int server_sockfd;
    socklen_t client_len;
    ssize_t read_return;
    struct protoent *protoent;
    struct sockaddr_in client_address, server_address;
    unsigned short server_port = 12345u;

    if (argc > 1) {
        file_path = argv[1];
        if (argc > 2) {
            server_port = strtol(argv[2], NULL, 10);
        }
    }

    /* Create a socket and listen to it.. */
    protoent = getprotobyname(protoname);
    if (protoent == NULL) {
        perror("getprotobyname");
        exit(EXIT_FAILURE);
    }
    server_sockfd = socket(
        AF_INET,
        SOCK_STREAM,
        protoent->p_proto
    );
    if (server_sockfd == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }
    if (setsockopt(server_sockfd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable)) < 0) {
        perror("setsockopt(SO_REUSEADDR) failed");
        exit(EXIT_FAILURE);
    }
    server_address.sin_family = AF_INET;
    server_address.sin_addr.s_addr = htonl(INADDR_ANY);
    server_address.sin_port = htons(server_port);
    if (bind(
            server_sockfd,
            (struct sockaddr*)&server_address,
            sizeof(server_address)
        ) == -1
    ) {
        perror("bind");
        exit(EXIT_FAILURE);
    }
    if (listen(server_sockfd, 5) == -1) {
        perror("listen");
        exit(EXIT_FAILURE);
    }
    fprintf(stderr, "listening on port %d\n", server_port);

    while (1) {
        client_len = sizeof(client_address);
        puts("waiting for client");
        client_sockfd = accept(
            server_sockfd,
            (struct sockaddr*)&client_address,
            &client_len
        );
        filefd = open(file_path,
                O_WRONLY | O_CREAT | O_TRUNC,
                S_IRUSR | S_IWUSR);
        if (filefd == -1) {
            perror("open");
            exit(EXIT_FAILURE);
        }
        do {
            read_return = read(client_sockfd, buffer, BUFSIZ);
            if (read_return == -1) {
                perror("read");
                exit(EXIT_FAILURE);
            }
            if (write(filefd, buffer, read_return) == -1) {
                perror("write");
                exit(EXIT_FAILURE);
            }
        } while (read_return > 0);
        close(filefd);
        close(client_sockfd);
    }
    return EXIT_SUCCESS;
}

client.c

/*
Send a file over a socket.

Interface:

    ./executable [<input_path> [<sever_hostname> [<port>]]]

Defaults:

- input_path: input.tmp
- server_hostname: 127.0.0.1
- port: 12345
*/

#define _XOPEN_SOURCE 700

#include <stdio.h>
#include <stdlib.h>

#include <arpa/inet.h>
#include <fcntl.h>
#include <netdb.h> /* getprotobyname */
#include <netinet/in.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <unistd.h>

int main(int argc, char **argv) {
    char protoname[] = "tcp";
    struct protoent *protoent;
    char *file_path = "input.tmp";
    char *server_hostname = "127.0.0.1";
    char *server_reply = NULL;
    char *user_input = NULL;
    char buffer[BUFSIZ];
    in_addr_t in_addr;
    in_addr_t server_addr;
    int filefd;
    int sockfd;
    ssize_t i;
    ssize_t read_return;
    struct hostent *hostent;
    struct sockaddr_in sockaddr_in;
    unsigned short server_port = 12345;

    if (argc > 1) {
        file_path = argv[1];
        if (argc > 2) {
            server_hostname = argv[2];
            if (argc > 3) {
                server_port = strtol(argv[3], NULL, 10);
            }
        }
    }

    filefd = open(file_path, O_RDONLY);
    if (filefd == -1) {
        perror("open");
        exit(EXIT_FAILURE);
    }

    /* Get socket. */
    protoent = getprotobyname(protoname);
    if (protoent == NULL) {
        perror("getprotobyname");
        exit(EXIT_FAILURE);
    }
    sockfd = socket(AF_INET, SOCK_STREAM, protoent->p_proto);
    if (sockfd == -1) {
        perror("socket");
        exit(EXIT_FAILURE);
    }
    /* Prepare sockaddr_in. */
    hostent = gethostbyname(server_hostname);
    if (hostent == NULL) {
        fprintf(stderr, "error: gethostbyname(\"%s\")\n", server_hostname);
        exit(EXIT_FAILURE);
    }
    in_addr = inet_addr(inet_ntoa(*(struct in_addr*)*(hostent->h_addr_list)));
    if (in_addr == (in_addr_t)-1) {
        fprintf(stderr, "error: inet_addr(\"%s\")\n", *(hostent->h_addr_list));
        exit(EXIT_FAILURE);
    }
    sockaddr_in.sin_addr.s_addr = in_addr;
    sockaddr_in.sin_family = AF_INET;
    sockaddr_in.sin_port = htons(server_port);
    /* Do the actual connection. */
    if (connect(sockfd, (struct sockaddr*)&sockaddr_in, sizeof(sockaddr_in)) == -1) {
        perror("connect");
        return EXIT_FAILURE;
    }

    while (1) {
        read_return = read(filefd, buffer, BUFSIZ);
        if (read_return == 0)
            break;
        if (read_return == -1) {
            perror("read");
            exit(EXIT_FAILURE);
        }
        /* TODO use write loop: https://stackoverflow.com/questions/24259640/writing-a-full-buffer-using-write-system-call */
        if (write(sockfd, buffer, read_return) == -1) {
            perror("write");
            exit(EXIT_FAILURE);
        }
    }
    free(user_input);
    free(server_reply);
    close(filefd);
    exit(EXIT_SUCCESS);
}

GitHub upstream.

Further comments

Possible improvements:

• Currently output.tmp gets overwritten each time a send is done.

  This begs for the creation of a simple protocol that allows to pass a filename so that multiple files can be uploaded, e.g.: filename up to the first newline character, max filename 256 chars, and the rest until socket closure are the contents. Of course, that would require sanitation to avoid a path transversal vulnerability.

  Alternatively, we could make a server that hashes the files to find filenames, and keeps a map from original paths to hashes on disk (on a database).

• Only one client can connect at a time.

  This is specially harmful if there are slow clients whose connections last for a long time: the slow connection halts everyone down.

  One way to work around that is to fork a process / thread for each accept, start listening again immediately, and use file lock synchronization on the files.

• Add timeouts, and close clients if they take too long. Or else it would be easy to do a DoS.

  poll or select are some options: How to implement a timeout in read function call?

A simple HTTP wget implementation is shown at: How to make an HTTP get request in C without libcurl?

Tested on Ubuntu 15.10.

I believe this is the most simple in all aspects unless you call the validate function be other means. With no/null/empty value to your first option is easier to validate. You could also eliminate the first option and start with the most popular card type.

<form name="myForm">
<select id="cardtype" name="cards">
<option value="">--- Please select ---</option>
<option value="mastercard" selected="selected">Mastercard</option>
<option value="maestro">Maestro</option>
<option value="solo">Solo (UK only)</option>
<option value="visaelectron">Visa Electron</option>
<option value="visadebit">Visa Debit</option>
</select><br />

<input type="submit" name="submit" class="button" value="SUBMIT" onmouseover="validate()"></form>

<script>
function validate() {
 if (document.myform.cards.value == "") {
    alert("Please select a card type");
    document.myForm.cards.focus();
}
</script>

My bible for JPA work is the Java Persistence wikibook. It has a section on unidirectional OneToMany which explains how to do this with a @JoinColumn annotation. In your case, i think you would want:

@OneToMany
@JoinColumn(name="TXTHEAD_CODE")
private Set<Text> text;

I've used a Set rather than a List, because the data itself is not ordered.

The above is using a defaulted referencedColumnName, unlike the example in the wikibook. If that doesn't work, try an explicit one:

@OneToMany
@JoinColumn(name="TXTHEAD_CODE", referencedColumnName="DATREG_META_CODE")
private Set<Text> text;

I'm guessing you used Brew to install Node, so the guide here might be helpful http://madebyhoundstooth.com/blog/install-node-with-homebrew-on-os-x/.

You need to ensure that the npm/bin is in your path as it describes export PATH="/usr/local/share/npm/bin:$PATH". This is the location that npm will install the bin stubs for the installed packages.

The nano version will also work as described here http://architectryan.com/2012/10/02/add-to-the-path-on-mac-os-x-mountain-lion/ but a restart of Terminal may be required to have the new path picked up.

First open a console then cd to where you've downloaded your file like some-package.whl and use

pip install some-package.whl

Note: if pip.exe is not recognized, you may find it in the "Scripts" directory from where python has been installed. I have multiple Python installations, and needed to use the pip associated with Python 3 to install a version 3 wheel.

If pip is not installed, and you are using Windows: How to install pip on Windows?

If you reset the result set to the top, using rs.absolute(1) you won't get exhaused result set.

while (rs.next) {
    System.out.println(rs.getString(1));
}
rs.absolute(1);
System.out.println(rs.getString(1));

You can also use rs.first() instead of rs.absolute(1), it does the same.

With Java 8 you can write:

OffsetDateTime utc = OffsetDateTime.now(ZoneOffset.UTC);

To answer your comment, you can then convert it to a Date (unless you depend on legacy code I don't see any reason why) or to millis since the epochs:

Date date = Date.from(utc.toInstant());
long epochMillis = utc.toInstant().toEpochMilli();

#!/usr/bin/env python
import tkinter as tk

class AppName(tk.Frame):
    def __init__(self, master=None):
        tk.Frame.__init__(self, master)
        self.grid()
        self.createWidgets()

    def createWidgets(self):
        self.quitButton = tk.Button(self, text='Quit', command=self.quit)
        self.quitButton.grid()

app = AppName()
app.master.title('Title here ...!')
app.master.iconbitmap('icon.ico')
app.mainloop()

it should work like this !

I know that two threads can not enter in Synchronize block at the same time

Two thread cannot enter a synchronized block on the same object twice. This means that two threads can enter the same block on different objects. This confusion can lead to code like this.

private Integer i = 0;

synchronized(i) {
   i++;
}

This will not behave as expected as it could be locking on a different object each time.

if this is true than How this atomic.incrementAndGet() works without Synchronize ?? and is thread safe ??

yes. It doesn't use locking to achieve thread safety.

If you want to know how they work in more detail, you can read the code for them.

And what is difference between internal reading and writing to Volatile Variable / Atomic Variable ??

Atomic class uses volatile fields. There is no difference in the field. The difference is the operations performed. The Atomic classes use CompareAndSwap or CAS operations.

i read in some article that thread has local copy of variables what is that ??

I can only assume that it referring to the fact that each CPU has its own cached view of memory which can be different from every other CPU. To ensure that your CPU has a consistent view of data, you need to use thread safety techniques.

This is only an issue when memory is shared at least one thread updates it.

Please note: this answer is for .Net 4.0 and above. If you want to format a TimeSpan in .Net 3.5 or below please see JohannesH's answer.

Custom TimeSpan format strings were introduced in .Net 4.0. You can find a full reference of available format specifiers at the MSDN Custom TimeSpan Format Strings page.

Here's an example timespan format string:

string.Format("{0:hh\\:mm\\:ss}", myTimeSpan); //example output 15:36:15

(UPDATE) and here is an example using C# 6 string interpolation:

$"{myTimeSpan:hh\\:mm\\:ss}"; //example output 15:36:15

You need to escape the ":" character with a "\" (which itself must be escaped unless you're using a verbatim string).

This excerpt from the MSDN Custom TimeSpan Format Strings page explains about escaping the ":" and "." characters in a format string:

The custom TimeSpan format specifiers do not include placeholder separator symbols, such as the symbols that separate days from hours, hours from minutes, or seconds from fractional seconds. Instead, these symbols must be included in the custom format string as string literals. For example, "dd.hh:mm" defines a period (.) as the separator between days and hours, and a colon (:) as the separator between hours and minutes.

On the following option:

WebElement option = select.getFirstSelectedOption();
option.getText();

If from the method getText() you get a blank, you can get the string from the value of the option using the method getAttribute:

WebElement option = select.getFirstSelectedOption();
option.getAttribute("value");

I've tried everything, my problem was that the image picker for the camera and photo library disappeared right after they showed. I solved it with the following line (swift)

imagePicker.modalPresentationStyle = UIModalPresentationStyle.OverCurrentContext

If you're using React function components, and you don't like to work with labels or IDs, you can also use a reference.

const uploadInputRef = useRef(null);

return (
  <Fragment>
    <input
      ref={uploadInputRef}
      type="file"
      accept="image/*"
      style={{ display: "none" }}
      onChange={onChange}
    />
    <Button
      onClick={() => uploadInputRef.current && uploadInputRef.current.click()}
      variant="contained"
    >
      Upload
    </Button>
  </Fragment>
);

For those situations where width of the items you do want to flex-end is known, you can set their flex to "0 0 ##px" and set the item you want to flex-start with flex:1

This will cause the pseudo flex-start item to fill the container, just format it to text-align:left or whatever.

Updating node helped me, whether that be from the command line or just re-downloading it from the web

If you want to play around with border-size, width and height and see how those can create different shapes, try this:

const sizes = [32, 32, 32, 32];_x000D_
const triangle = document.getElementById('triangle');_x000D_
_x000D_
function update({ target }) {_x000D_
  let index = null;_x000D_
  _x000D_
  if (target) {_x000D_
    index = parseInt(target.id);_x000D_
_x000D_
    if (!isNaN(index)) {_x000D_
      sizes[index] = target.value;_x000D_
    }_x000D_
  }_x000D_
  _x000D_
  window.requestAnimationFrame(() => {_x000D_
    triangle.style.borderWidth = sizes.map(size => `${ size }px`).join(' ');_x000D_
    _x000D_
    if (isNaN(index)) {_x000D_
      triangle.style[target.id] = `${ target.value }px`;_x000D_
    }_x000D_
  });_x000D_
}_x000D_
_x000D_
document.querySelectorAll('input').forEach(input => {_x000D_
  input.oninput = update;_x000D_
});_x000D_
_x000D_
update({});

body {_x000D_
  margin: 0;_x000D_
  min-height: 100vh;_x000D_
  display: flex;_x000D_
  justify-content: center;_x000D_
  align-items: center;_x000D_
  overflow: hidden;_x000D_
}_x000D_
_x000D_
#triangle {_x000D_
    border-style: solid;_x000D_
    border-color: yellow magenta blue black;_x000D_
    background: cyan;_x000D_
    height: 0px;_x000D_
    width: 0px;_x000D_
}_x000D_
_x000D_
#controls {_x000D_
  position: fixed;_x000D_
  bottom: 0;_x000D_
  left: 0;_x000D_
  right: 0;_x000D_
  background: white;_x000D_
  display: flex;_x000D_
  box-shadow: 0 0 32px rgba(0, 0, 0, .125);_x000D_
}_x000D_
_x000D_
#controls > div {_x000D_
  position: relative;_x000D_
  width: 25%;_x000D_
  padding: 8px;_x000D_
  box-sizing: border-box;_x000D_
  display: flex;_x000D_
}_x000D_
_x000D_
input {_x000D_
  margin: 0;_x000D_
  width: 100%;_x000D_
  position: relative;_x000D_
}

<div id="triangle" style="border-width: 32px 32px 32px 32px;"></div>_x000D_
_x000D_
<div id="controls">_x000D_
  <div><input type="range" min="0" max="128" value="32" id="0" /></div>_x000D_
  <div><input type="range" min="0" max="128" value="32" id="1" /></div>_x000D_
  <div><input type="range" min="0" max="128" value="32" id="2" /></div>_x000D_
  <div><input type="range" min="0" max="128" value="32" id="3" /></div>_x000D_
  <div><input type="range" min="0" max="128" value="0" id="width" /></div>_x000D_
  <div><input type="range" min="0" max="128" value="0" id="height" /></div>_x000D_
</div>

It is a function that has no name. For e.g. in c# you can use

numberCollection.GetMatchingItems<int>(number => number > 5);

to return the numbers that are greater than 5.

number => number > 5

is the lambda part here. It represents a function which takes a parameter (number) and returns a boolean value (number > 5). GetMatchingItems method uses this lambda on all the items in the collection and returns the matching items.

Taking the answers (so far) here:

public class X
{
    static boolean a(final boolean a, final boolean b, final boolean c)
    {
    return ((a && b) || (b && c) || (a && c));
    }

    static boolean b(final boolean a, final boolean b, final boolean c)
    {
    return a ? (b || c) : (b && c);
    }

    static boolean c(final boolean a, final boolean b, final boolean c)
    {
    return ((a & b) | (b & c) | (c & a));
    }

    static boolean d(final boolean a, final boolean b, final boolean c)
    {
    return ((a?1:0)+(b?1:0)+(c?1:0) >= 2);
    }
}

and running them through the decompiler (javap -c X > results.txt):

Compiled from "X.java"
public class X extends java.lang.Object{
public X();
  Code:
   0:   aload_0
   1:   invokespecial   #1; //Method java/lang/Object."<init>":()V
   4:   return

static boolean a(boolean, boolean, boolean);
  Code:
   0:   iload_0
   1:   ifeq    8
   4:   iload_1
   5:   ifne    24
   8:   iload_1
   9:   ifeq    16
   12:  iload_2
   13:  ifne    24
   16:  iload_0
   17:  ifeq    28
   20:  iload_2
   21:  ifeq    28
   24:  iconst_1
   25:  goto    29
   28:  iconst_0
   29:  ireturn

static boolean b(boolean, boolean, boolean);
  Code:
   0:   iload_0
   1:   ifeq    20
   4:   iload_1
   5:   ifne    12
   8:   iload_2
   9:   ifeq    16
   12:  iconst_1
   13:  goto    33
   16:  iconst_0
   17:  goto    33
   20:  iload_1
   21:  ifeq    32
   24:  iload_2
   25:  ifeq    32
   28:  iconst_1
   29:  goto    33
   32:  iconst_0
   33:  ireturn

static boolean c(boolean, boolean, boolean);
  Code:
   0:   iload_0
   1:   iload_1
   2:   iand
   3:   iload_1
   4:   iload_2
   5:   iand
   6:   ior
   7:   iload_2
   8:   iload_0
   9:   iand
   10:  ior
   11:  ireturn

static boolean d(boolean, boolean, boolean);
  Code:
   0:   iload_0
   1:   ifeq    8
   4:   iconst_1
   5:   goto    9
   8:   iconst_0
   9:   iload_1
   10:  ifeq    17
   13:  iconst_1
   14:  goto    18
   17:  iconst_0
   18:  iadd
   19:  iload_2
   20:  ifeq    27
   23:  iconst_1
   24:  goto    28
   27:  iconst_0
   28:  iadd
   29:  iconst_2
   30:  if_icmplt   37
   33:  iconst_1
   34:  goto    38
   37:  iconst_0
   38:  ireturn
}

You can see that the ?: ones are slightly better then the fixed up version of your original. The one that is the best is the one that avoids branching altogether. That is good from the point of view of fewer instructions (in most cases) and better for branch prediction parts of the CPU, since a wrong guess in the branch prediction can cause CPU stalling.

I'd say the most efficient one is the one from moonshadow overall. It uses the fewest instructions on average and reduces the chance for pipeline stalls in the CPU.

To be 100% sure you would need to find out the cost (in CPU cycles) for each instruction, which, unfortunately isn't readily available (you would have to look at the source for hotspot and then the CPU vendors specs for the time taken for each generated instruction).

See the updated answer by Rotsor for a runtime analysis of the code.

write code in body tag like this

<body style="background-image: url('Image URL');" >
</body>

To get first word of string you can do this:

let myStr = "Hello World"
let firstWord = myStr.split(" ")[0]

Try this query.. It uses the Analytic function SUM:

SELECT * FROM
(  
 SELECT SUM(1) OVER(PARTITION BY ctn_no) cnt, A.*
 FROM table1 a 
 WHERE s_ind ='Y'   
)
WHERE cnt > 2

Am not sure why you are identifying a record as a duplicate if the ctn_no repeats more than 2 times. FOr me it repeats more than once it is a duplicate. In this case change the las part of the query to WHERE cnt > 1

You need

$('selector').dialog('close');

have you checked RSE (Remote System Explorer) ? I think it's pretty close to what you want to achieve.

a blog post about it, with screenshots

Just add the percentage value into a variable and use #{$variable} for example

$twentyFivePercent:25%;
.selector {
    height: calc(#{$twentyFivePercent} - 5px);
}

Using aws s3 cp from the AWS Command-Line Interface (CLI) will require the --recursive parameter to copy multiple files.

aws s3 cp s3://myBucket/dir localdir --recursive

The aws s3 sync command will, by default, copy a whole directory. It will only copy new/modified files.

aws s3 sync s3://mybucket/dir localdir

Just experiment to get the result you want.

Documentation:

• cp command
• sync command

Try underscore-cli:

cat myfile.json | underscore print --color

It's a pretty nifty tool that can elegantly do a lot of manipulation of structured data, execute js snippets, fill templates, etc. It's ridiculously well documented, polished, and ready for serious use. And I wrote it. :)

Use Dictionary Items:

{% for key, value in my_dictionay.items %}
  <li>{{ key }} : {{ value }}</li>
{% endfor %}

So i tried the above :javascript which works :) However HAML wraps the generated code in CDATA like so:

<script type="text/javascript">
  //<![CDATA[
    $(document).ready( function() {
       $('body').addClass( 'test' );
    } );
  //]]>
</script>

The following HAML will generate the typical tag for including (for example) typekit or google analytics code.

 %script{:type=>"text/javascript"}
  //your code goes here - dont forget the indent!

If it's just once, you shouldn't alter your style sheet. Just edit that particular td:

<td style="text-align: center;">

Cheers

my take....

listofcols = ['col1','col2','col3']
df['combined_cols'] = ''

for column in listofcols:
    df['combined_cols'] = df['combined_cols'] + ' ' + df[column]
'''

Png files can handle transparency. So you could use this question Save plot to image file instead of displaying it using Matplotlib so as to save you graph as a png file.

And if you want to turn all white pixel transparent, there's this other question : Using PIL to make all white pixels transparent?

If you want to turn an entire area to transparent, then there's this question: And then use the PIL library like in this question Python PIL: how to make area transparent in PNG? so as to make your graph transparent.

No, you can't make the img stretch to fit the div and simultaneously achieve the inverse. You would have an infinite resizing loop. However, you could take some notes from other answers and implement some min and max dimensions but that wasn't the question.

You need to decide if your image will scale to fit its parent or if you want the div to expand to fit its child img.

Using this block tells me you want the image size to be variable so the parent div is the width an image scales to. height: auto is going to keep your image aspect ratio in tact. if you want to stretch the height it needs to be 100% like this fiddle.

img {
    width: 100%;
    height: auto;
}

http://jsfiddle.net/D8uUd/1/

Here you go:

var life={
        users:{
             guys:function(){ life.mameAndDestroy(life.users.girls); },
             girls:function(){ life.kiss(life.users.guys); }
        },
        mameAndDestroy : function(group){ 
          alert("mameAndDestroy");
          group();
        },
        kiss : function(group){
          alert("kiss");
          //could call group() here, but would result in infinite loop
        }
};

life.users.guys();
life.users.girls();

Also, make sure you don't have a comma after the "girls" definition. This will cause the script to crash in IE (any time you have a comma after the last item in an array in IE it dies).

See it run

It depends upon which platform you're on as to how it will be translated and whether it will be there at all: Wikipedia entry on newline

I had the same issue and none of the above answers solved the problem, so I tried something very straight-forward: I just putted in my strings.xml \n\t

The complete String looks like this <string name="premium_features_listing_3">- Automatische Aktualisierung der\n\tDatenbank</string>

Results in:

• Automatische Aktualisierung der

  Datenbank

(with no extra line in between)

Maybe it will help others. Regards

The ActiveDirectory module for powershell can be installed by adding the RSAT-AD-Powershell feature.

In an elevated powershell window:

Add-WindowsFeature RSAT-AD-PowerShell

or

Enable-WindowsOptionalFeature -FeatureName ActiveDirectory-Powershell -Online -All

Colin Pickard is mostly correct, but don't confuse the "password to open" protection for the entire file with the VBA password protection, which is completely different from the former and is the same for Office 2003 and 2007 (for Office 2007, rename the file to .zip and look for the vbaProject.bin inside the zip). And that technically the correct way to edit the file is to use a OLE compound document viewer like CFX to open up the correct stream. Of course, if you are just replacing bytes, the plain old binary editor may work.

BTW, if you are wondering about the exact format of these fields, they have it documented now:

http://msdn.microsoft.com/en-us/library/dd926151%28v=office.12%29.aspx

To do it in better way.

It can handle recursive objects or arrays in the STANDARD query form like a=val&b[0]=val&b[1]=val&c=val&d[some key]=val, here's the final function.

Logic, Functionality

const objectToQueryString = (initialObj) => {
  const reducer = (obj, parentPrefix = null) => (prev, key) => {
    const val = obj[key];
    key = encodeURIComponent(key);
    const prefix = parentPrefix ? `${parentPrefix}[${key}]` : key;

    if (val == null || typeof val === 'function') {
      prev.push(`${prefix}=`);
      return prev;
    }

    if (['number', 'boolean', 'string'].includes(typeof val)) {
      prev.push(`${prefix}=${encodeURIComponent(val)}`);
      return prev;
    }

    prev.push(Object.keys(val).reduce(reducer(val, prefix), []).join('&'));
    return prev;
  };

  return Object.keys(initialObj).reduce(reducer(initialObj), []).join('&');
};

Example

const testCase1 = {
  name: 'Full Name',
  age: 30
}

const testCase2 = {
  name: 'Full Name',
  age: 30,
  children: [
    {name: 'Child foo'},
    {name: 'Foo again'}
  ],
  wife: {
    name: 'Very Difficult to say here'
  }
}

console.log(objectToQueryString(testCase1));
console.log(objectToQueryString(testCase2));

Live Test

Expand the snippet below to verify the result in your browser -

const objectToQueryString = (initialObj) => {
  const reducer = (obj, parentPrefix = null) => (prev, key) => {
    const val = obj[key];
    key = encodeURIComponent(key);
    const prefix = parentPrefix ? `${parentPrefix}[${key}]` : key;

    if (val == null || typeof val === 'function') {
      prev.push(`${prefix}=`);
      return prev;
    }

    if (['number', 'boolean', 'string'].includes(typeof val)) {
      prev.push(`${prefix}=${encodeURIComponent(val)}`);
      return prev;
    }

    prev.push(Object.keys(val).reduce(reducer(val, prefix), []).join('&'));
    return prev;
  };

  return Object.keys(initialObj).reduce(reducer(initialObj), []).join('&');
};

const testCase1 = {
  name: 'Full Name',
  age: 30
}

const testCase2 = {
  name: 'Full Name',
  age: 30,
  children: [
    {name: 'Child foo'},
    {name: 'Foo again'}
  ],
  wife: {
    name: 'Very Difficult to say here'
  }
}

console.log(objectToQueryString(testCase1));
console.log(objectToQueryString(testCase2));

Things to consider.

• It skips values for functions, null, undefined
• It skips keys and values for empty objects and arrays.
• It doesn't handle Number or String Objects made with new Number(1) or new String('my string') because NO ONE should ever do that

DataSet ds = new DataSet();
ds.ReadXml(fileNamePath);

You can list all the available timezones with pytz.all_timezones:

In [40]: import pytz
In [41]: pytz.all_timezones
Out[42]: 
['Africa/Abidjan',
 'Africa/Accra',
 'Africa/Addis_Ababa',
 ...]

There is also pytz.common_timezones:

In [45]: len(pytz.common_timezones)
Out[45]: 403

In [46]: len(pytz.all_timezones)
Out[46]: 563

I think the window focus approach is the correct one. Here is an example in which I wanted to open a PDF url blob in a hidden iframe and print it. After printed or canceled, I wanted to remove the iframe.

/**
 * printBlob will create if not exists an iframe to load
 * the pdf. Once the window is loaded, the PDF is printed.
 * It then creates a one-time event to remove the iframe from
 * the window.
 * @param {string} src Blob or any printable url.
 */
export const printBlob = (src) => {
  if (typeof window === 'undefined') {
    throw new Error('You cannot print url without defined window.');
  }
  const iframeId = 'pdf-print-iframe';
  let iframe = document.getElementById(iframeId);
  if (!iframe) {
    iframe = document.createElement('iframe');
    iframe.setAttribute('id', iframeId);
    iframe.setAttribute('style', 'position:absolute;left:-9999px');
    document.body.append(iframe);
  }
  iframe.setAttribute('src', src);
  iframe.addEventListener('load', () => {
    iframe.contentWindow.focus();
    iframe.contentWindow.print();
    const infanticide = () => {
      iframe.parentElement.removeChild(iframe);
      window.removeEventListener('focus', infanticide);
    }
    window.addEventListener('focus', infanticide);
  });
};

You should check this MSDN article and download the .docx file and read it carefully , it was very helpful for me.

However this is a class which works fine for my case :

    [StructLayout(LayoutKind.Sequential)]
    internal struct PROCESS_INFORMATION
    {
        public IntPtr hProcess;
        public IntPtr hThread;
        public uint dwProcessId;
        public uint dwThreadId;
    }
    
    [StructLayout(LayoutKind.Sequential)]
    internal struct SECURITY_ATTRIBUTES
    {
        public uint nLength;
        public IntPtr lpSecurityDescriptor;
        public bool bInheritHandle;
    }


    [StructLayout(LayoutKind.Sequential)]
    public struct STARTUPINFO
    {
        public uint cb;
        public string lpReserved;
        public string lpDesktop;
        public string lpTitle;
        public uint dwX;
        public uint dwY;
        public uint dwXSize;
        public uint dwYSize;
        public uint dwXCountChars;
        public uint dwYCountChars;
        public uint dwFillAttribute;
        public uint dwFlags;
        public short wShowWindow;
        public short cbReserved2;
        public IntPtr lpReserved2;
        public IntPtr hStdInput;
        public IntPtr hStdOutput;
        public IntPtr hStdError;

    }

    internal enum SECURITY_IMPERSONATION_LEVEL
    {
        SecurityAnonymous,
        SecurityIdentification,
        SecurityImpersonation,
        SecurityDelegation
    }

    internal enum TOKEN_TYPE
    {
        TokenPrimary = 1,
        TokenImpersonation
    }

    public static class ProcessAsUser
    {

        [DllImport("advapi32.dll", SetLastError = true)]
        private static extern bool CreateProcessAsUser(
            IntPtr hToken,
            string lpApplicationName,
            string lpCommandLine,
            ref SECURITY_ATTRIBUTES lpProcessAttributes,
            ref SECURITY_ATTRIBUTES lpThreadAttributes,
            bool bInheritHandles,
            uint dwCreationFlags,
            IntPtr lpEnvironment,
            string lpCurrentDirectory,
            ref STARTUPINFO lpStartupInfo,
            out PROCESS_INFORMATION lpProcessInformation);


        [DllImport("advapi32.dll", EntryPoint = "DuplicateTokenEx", SetLastError = true)]
        private static extern bool DuplicateTokenEx(
            IntPtr hExistingToken,
            uint dwDesiredAccess,
            ref SECURITY_ATTRIBUTES lpThreadAttributes,
            Int32 ImpersonationLevel,
            Int32 dwTokenType,
            ref IntPtr phNewToken);


        [DllImport("advapi32.dll", SetLastError = true)]
        private static extern bool OpenProcessToken(
            IntPtr ProcessHandle,
            UInt32 DesiredAccess,
            ref IntPtr TokenHandle);

        [DllImport("userenv.dll", SetLastError = true)]
        private static extern bool CreateEnvironmentBlock(
                ref IntPtr lpEnvironment,
                IntPtr hToken,
                bool bInherit);


        [DllImport("userenv.dll", SetLastError = true)]
        private static extern bool DestroyEnvironmentBlock(
                IntPtr lpEnvironment);

        [DllImport("kernel32.dll", SetLastError = true)]
        private static extern bool CloseHandle(
            IntPtr hObject);

        private const short SW_SHOW = 5;
        private const uint TOKEN_QUERY = 0x0008;
        private const uint TOKEN_DUPLICATE = 0x0002;
        private const uint TOKEN_ASSIGN_PRIMARY = 0x0001;
        private const int GENERIC_ALL_ACCESS = 0x10000000;
        private const int STARTF_USESHOWWINDOW = 0x00000001;
        private const int STARTF_FORCEONFEEDBACK = 0x00000040;
        private const uint CREATE_UNICODE_ENVIRONMENT = 0x00000400;


        private static bool LaunchProcessAsUser(string cmdLine, IntPtr token, IntPtr envBlock)
        {
            bool result = false;


            PROCESS_INFORMATION pi = new PROCESS_INFORMATION();
            SECURITY_ATTRIBUTES saProcess = new SECURITY_ATTRIBUTES();
            SECURITY_ATTRIBUTES saThread = new SECURITY_ATTRIBUTES();
            saProcess.nLength = (uint)Marshal.SizeOf(saProcess);
            saThread.nLength = (uint)Marshal.SizeOf(saThread);

            STARTUPINFO si = new STARTUPINFO();
            si.cb = (uint)Marshal.SizeOf(si);


            //if this member is NULL, the new process inherits the desktop
            //and window station of its parent process. If this member is
            //an empty string, the process does not inherit the desktop and
            //window station of its parent process; instead, the system
            //determines if a new desktop and window station need to be created.
            //If the impersonated user already has a desktop, the system uses the
            //existing desktop.

            si.lpDesktop = @"WinSta0\Default"; //Modify as needed
            si.dwFlags = STARTF_USESHOWWINDOW | STARTF_FORCEONFEEDBACK;
            si.wShowWindow = SW_SHOW;
            //Set other si properties as required.

            result = CreateProcessAsUser(
                token,
                null,
                cmdLine,
                ref saProcess,
                ref saThread,
                false,
                CREATE_UNICODE_ENVIRONMENT,
                envBlock,
                null,
                ref si,
                out pi);


            if (result == false)
            {
                int error = Marshal.GetLastWin32Error();
                string message = String.Format("CreateProcessAsUser Error: {0}", error);
                FilesUtilities.WriteLog(message,FilesUtilities.ErrorType.Info);

            }

            return result;
        }


        private static IntPtr GetPrimaryToken(int processId)
        {
            IntPtr token = IntPtr.Zero;
            IntPtr primaryToken = IntPtr.Zero;
            bool retVal = false;
            Process p = null;

            try
            {
                p = Process.GetProcessById(processId);
            }

            catch (ArgumentException)
            {

                string details = String.Format("ProcessID {0} Not Available", processId);
                FilesUtilities.WriteLog(details, FilesUtilities.ErrorType.Info);
                throw;
            }


            //Gets impersonation token
            retVal = OpenProcessToken(p.Handle, TOKEN_DUPLICATE, ref token);
            if (retVal == true)
            {

                SECURITY_ATTRIBUTES sa = new SECURITY_ATTRIBUTES();
                sa.nLength = (uint)Marshal.SizeOf(sa);

                //Convert the impersonation token into Primary token
                retVal = DuplicateTokenEx(
                    token,
                    TOKEN_ASSIGN_PRIMARY | TOKEN_DUPLICATE | TOKEN_QUERY,
                    ref sa,
                    (int)SECURITY_IMPERSONATION_LEVEL.SecurityIdentification,
                    (int)TOKEN_TYPE.TokenPrimary,
                    ref primaryToken);

                //Close the Token that was previously opened.
                CloseHandle(token);
                if (retVal == false)
                {
                    string message = String.Format("DuplicateTokenEx Error: {0}", Marshal.GetLastWin32Error());
                    FilesUtilities.WriteLog(message, FilesUtilities.ErrorType.Info);

                }

            }

            else
            {

                string message = String.Format("OpenProcessToken Error: {0}", Marshal.GetLastWin32Error());
                FilesUtilities.WriteLog(message, FilesUtilities.ErrorType.Info);

            }

            //We'll Close this token after it is used.
            return primaryToken;

        }

        private static IntPtr GetEnvironmentBlock(IntPtr token)
        {

            IntPtr envBlock = IntPtr.Zero;
            bool retVal = CreateEnvironmentBlock(ref envBlock, token, false);
            if (retVal == false)
            {

                //Environment Block, things like common paths to My Documents etc.
                //Will not be created if "false"
                //It should not adversley affect CreateProcessAsUser.

                string message = String.Format("CreateEnvironmentBlock Error: {0}", Marshal.GetLastWin32Error());
                FilesUtilities.WriteLog(message, FilesUtilities.ErrorType.Info);

            }
            return envBlock;
        }

        public static bool Launch(string appCmdLine /*,int processId*/)
        {

            bool ret = false;

            //Either specify the processID explicitly
            //Or try to get it from a process owned by the user.
            //In this case assuming there is only one explorer.exe

            Process[] ps = Process.GetProcessesByName("explorer");
            int processId = -1;//=processId
            if (ps.Length > 0)
            {
                processId = ps[0].Id;
            }

            if (processId > 1)
            {
                IntPtr token = GetPrimaryToken(processId);

                if (token != IntPtr.Zero)
                {

                    IntPtr envBlock = GetEnvironmentBlock(token);
                    ret = LaunchProcessAsUser(appCmdLine, token, envBlock);
                    if (envBlock != IntPtr.Zero)
                        DestroyEnvironmentBlock(envBlock);

                    CloseHandle(token);
                }

            }
            return ret;
        }

    }

And to execute , simply call like this :

string szCmdline = "AbsolutePathToYourExe\\ExeNameWithoutExtension";
ProcessAsUser.Launch(szCmdline);

I had a similar problem when posting to the WebAPI endpoint. By turning the CustomErrors=Off, i was able to see the actual error which is one of the dlls was missing.

It may be stupid but it happened to us:

If you are using bitbucket and Sourcetree and you just copy paste the clone URL to the new repo dialog it will show the same error when pulling or pushing.

Make sure you delete the 'git clone' stuff before the URL.

adb kill-server will kill all emulators and restart the server clean.

Use Reflection to get the Field for these then you can just do: field.genericType to get the type that contains the information about generic as well.

I experienced same problem where crons are not running. We fixed by changing permissions and owner by Crons made root owner as we had mentioned in crontab AND Cronjobs 644 permission given

EDIT: The below answer no longer works see here

In Chrome or Opera, open a new tab and navigate to chrome://view-http-cache/

Click on whichever file you want to view. You should then see a page with a bunch of text and numbers. Copy all the text on that page. Paste it in the text box below.

Press "Go". The cached data will appear in the Results section below.

Adding this intent filter to one of the activities declared in app manifest fixed this for me.

<activity
    android:name=".MyActivity"
    android:screenOrientation="portrait"
    android:label="@string/app_name">

    <intent-filter>

       <action android:name="android.intent.action.VIEW" />

    </intent-filter>

</activity>

It seems to me that all other answers here (so far) fail to address the race-condition that occurs with their proposed solutions.

Any code where you first check for the files existence, and then, a few lines later in your program, you create it, runs the risk of the file being created while you weren't looking and causing you problems (or you causing the owner of "that other file" problems).

If you want to avoid this sort of thing, I would suggest something like the following (untested):

import os

def open_if_not_exists(filename):
    try:
        fd = os.open(filename, os.O_CREAT | os.O_EXCL | os.O_WRONLY)
    except OSError, e:
        if e.errno == 17:
            print e
            return None
        else:
            raise
    else:
        return os.fdopen(fd, 'w')

This should open your file for writing if it doesn't exist already, and return a file-object. If it does exists, it will print "Ooops" and return None (untested, and based solely on reading the python documentation, so might not be 100% correct).

For me, once there was a mistake in spelling of function

For e.g. instead of

$(document).ready(function(){

});

I wrote

$(document).ready(funciton(){

});

So keep that also in check

For those looking for an example of how to pass the OAuth2 authorization (access token) in the header (as opposed to using a request or body parameter), here is how it's done:

Authorization: Bearer 0b79bab50daca910b000d4f1a2b675d604257e42

On Windows you can open a command window and type the command

sc qc mysql

Or:

sc qc mariadb

which (depending on your flavor and version) will output something like:

[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: mariadb
        TYPE               : 10  WIN32_OWN_PROCESS 
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : "C:\Program Files\MariaDB 10.4\bin\mysqld.exe" "--defaults-file=C:\Program Files\MariaDB 10.4\data\my.ini" "MariaDB"
        LOAD_ORDER_GROUP   : 
        TAG                : 0
        DISPLAY_NAME       : MariaDB
        DEPENDENCIES       : 
        SERVICE_START_NAME : NT AUTHORITY\NetworkService

From this you can see the location of the my.ini file.

You can also change it with the same "sc" command like this:

sc config mysql binPath= <binary path>

Or:

sc config mariadb binPath= <binary path>

For example:

sc config mariadb binpath= "\"C:\Program Files\MariaDB 10.4\bin\mysqld.exe\" \"--defaults-file=M:\data\my.ini\" \"MariaDB\""

This will get ALL parameters from the request. For Debugging purposes only:

@RequestMapping (value = "/promote", method = {RequestMethod.POST, RequestMethod.GET})
public ModelAndView renderPromotePage (HttpServletRequest request) {
    Map<String, String[]> parameters = request.getParameterMap();

    for(String key : parameters.keySet()) {
        System.out.println(key);
        String[] vals = parameters.get(key);
        for(String val : vals)
            System.out.println(" -> " + val);
    }

    ModelAndView mv = new ModelAndView();
    mv.setViewName("test");
    return mv;
}

Define a class in CSS:

option.separator {
    margin-top:8px;
    border-top:1px solid #666;
    padding:0;
}

Write in HTML:

<select ...>
    <option disabled class="separator"></option>
</select>

Before you extract values from $_POST, you should check if they exist. You could use the isset function for this (http://php.net/manual/en/function.isset.php)

Sticky footer solutions that rely upon fixed-height footers are falling out of favour in with responsive approaches (where the height of the footer often changes at different break points). The simplest responsive sticky footer solution I've seen involves using display: table on a top-level container, e.g.:

http://galengidman.com/2014/03/25/responsive-flexible-height-sticky-footers-in-css/

http://timothy-long.com/responsive-sticky-footer/

http://www.visualdecree.co.uk/posts/2013/12/17/responsive-sticky-footers/

For iTextSharp 4.1.6, the last version of iTextSharp that was licensed as LGPL, the solution provided by Alvaro Patiño is both simple and effective.

Because documentation is somewhat scarse I'd like to extend his answer with this code snippet that can be used to change the appearance of the header and footer. By default they have a rather large font-size and a thick border, which many people will want to change.

// Parameters passed on to the function that creates the PDF 
String headerText = "Your header text";
String footerText = "Page";

// Define a font and font-size in points (plus f for float) and pick a color
// This one is for both header and footer but you can also create seperate ones
Font fontHeaderFooter = FontFactory.GetFont("arial", 8f);
fontHeaderFooter.Color = Color.GRAY;

// Apply the font to the headerText and create a Phrase with the result
Chunk chkHeader = new Chunk(headerText, fontHeaderFooter);
Phrase p1 = new Phrase(chkHeader);

// create a HeaderFooter element for the header using the Phrase
// The boolean turns numbering on or off
HeaderFooter header = new HeaderFooter(p1, false);

// Remove the border that is set by default
header.Border = Rectangle.NO_BORDER;
// Align the text: 0 is left, 1 center and 2 right.
header.Alignment = 1;

// add the header to the document
document.Header = header;

// The footer is created in an similar way

// If you want to use numbering like in this example, add a whitespace to the
// text because by default there's no space in between them
if (footerText.Substring(footerText.Length - 1) != " ") footerText += " ";

Chunk chkFooter = new Chunk(footerText, fontHeaderFooter);
Phrase p2 = new Phrase(chkFooter);

// Turn on numbering by setting the boolean to true
HeaderFooter footer = new HeaderFooter(p2, true);
footer.Border = Rectangle.NO_BORDER;
footer.Alignment = 1;

document.Footer = footer;

// Open the Document for writing and continue creating its content
document.Open();

For more info check Creating PDFs with iTextSharp and iTextSharp - Adding Text with Chunks, Phrases and Paragraphs. The source code on GitHub may also be useful.

You can use -[NSDictionary allKeys] to access all the keys and loop through it.

No, as the server decides what port it is run on. Perhaps you could install a proxy, which would redirect the port, but in the end the connection would be made on port 80 from your machine.

yet another solution uses tr:

echo $testVar | tr -d '\r'
cat myscript | tr -d '\r'

the option -d stands for delete.

Thanks Cody, that was very helpful. I've just added an example for guys using the Delegate Command in C#

<PasswordBox x:Name="PasswordBox"
             Grid.Row="1" Grid.Column="1"
             HorizontalAlignment="Left" 
             Width="300" Height="25"
             Margin="6,7,0,7" />
<Button Content="Login"
        Grid.Row="4" Grid.Column="1"
        Style="{StaticResource StandardButton}"
        Command="{Binding LoginCommand}"
        CommandParameter="{Binding ElementName=PasswordBox}"
        Height="31" Width="92"
        Margin="5,9,0,0" />

public ICommand LoginCommand
{
   get
   {
        return new DelegateCommand<object>((args) =>
        {
            // Get Password as Binding not supported for control-type PasswordBox
            LoginPassword = ((PasswordBox) args).Password;

            // Rest of code here
        });
   }
}

In case setting -Xmx4096m -XX:MaxHeapSize=256m (and etc.. mentioned in above answers) doest work, then do this manually:

Step 1 : Start Android studio and close any open project (File > Close Project).

Step 2 : On Welcome window, Go to Configure > Settings.

Step 3 : Go to Build, Execution, Deployment > Compiler

Step 4 : Change Build process heap size (Mbytes) to 1024 and Additional build process to VM Options to -Xmx512m.

Step 5 : Close or Restart Android Studio.

You can download the list here: ftp://ftp.cis.upenn.edu/pub/treebank/doc/tagguide.ps.gz. It includes confusing parts of speech, capitalization, and other conventions. Also, wikipedia has an interesting section similar to this. Section: Part-of-speech tags used.

If you want to get the root directory of your yii2 project use, assuming that the name of your project is project_app you'll need to use:

echo Yii::getAlias('@app');

on windows you'd see "C:\dir\to\project_app"

on linux you'll get "/var/www/dir/to/your/project_app"

I was formally using:

echo Yii::getAlias('@webroot').'/..';

I hope this helps someone

Works for me:

grep "\bsearch_word\b" text_file > output.txt  

\b indicates/sets boundaries.

Seems to work pretty fast

function mode(array){
    var set = Array.from(new Set(array));
    var counts = set.map(a=>array.filter(b=>b==a).length);
    var indices = counts.map((a,b)=>Math.max(...counts)===a?b:0).filter(b=>b!==0);
    var mode = indices.map(a=>set[a]);
    return mode;
}