jQuery: Wait/Delay 1 second without executing code

Only javascript It will work without jQuery

<!DOCTYPE html>
<html>
    <head>
        <script>
            function sleep(miliseconds) {
                var currentTime = new Date().getTime();
                while (currentTime + miliseconds >= new Date().getTime()) {
                }
            }

            function hello() {
                sleep(5000);
                alert('Hello');
            }
            function hi() {
                sleep(10000);
                alert('Hi');
            }
        </script>
    </head>
    <body>
        <a href="#" onclick="hello();">Say me hello after 5 seconds </a>
        <br>
        <a href="#" onclick="hi();">Say me hi after 10 seconds </a>


    </body>
</html>

C++ getters/setters coding style

Using a getter method is a better design choice for a long-lived class as it allows you to replace the getter method with something more complicated in the future. Although this seems less likely to be needed for a const value, the cost is low and the possible benefits are large.

As an aside, in C++, it's an especially good idea to give both the getter and setter for a member the same name, since in the future you can then actually change the the pair of methods:

class Foo {
public:
    std::string const& name() const;          // Getter
    void name(std::string const& newName);    // Setter
    ...
};

Into a single, public member variable that defines an operator()() for each:

// This class encapsulates a fancier type of name
class fancy_name {
public:
    // Getter
    std::string const& operator()() const {
        return _compute_fancy_name();    // Does some internal work
    }

    // Setter
    void operator()(std::string const& newName) {
        _set_fancy_name(newName);        // Does some internal work
    }
    ...
};

class Foo {
public:
    fancy_name name;
    ...
};

The client code will need to be recompiled of course, but no syntax changes are required! Obviously, this transformation works just as well for const values, in which only a getter is needed.

How to create a function in a cshtml template?

If your method doesn't have to return html and has to do something else then you can use a lambda instead of helper method in Razor

@{
    ViewBag.Title = "Index";
    Layout = "~/Views/Shared/_Layout.cshtml";

    Func<int,int,int> Sum = (a, b) => a + b;
}

<h2>Index</h2>

@Sum(3,4)

How to write URLs in Latex?

You just need to escape characters that have special meaning: # $ % & ~ _ ^ \ { }

http://stack_overflow.com/~foo%20bar#link

would be

http://stack\_overflow.com/\~foo\%20bar\#link

merge two object arrays with Angular 2 and TypeScript?

I think that you should use rather the following:

data => {
  this.results = this.results.concat(data.results);
  this._next = data.next;
},

From the concat doc:

The concat() method returns a new array comprised of the array on which it is called joined with the array(s) and/or value(s) provided as arguments.

Request header field Access-Control-Allow-Headers is not allowed by Access-Control-Allow-Headers

If anyone experiences this problem with an express server, add the following middleware

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});

Definition of "downstream" and "upstream"

That's a bit of informal terminology.

As far as Git is concerned, every other repository is just a remote.

Generally speaking, upstream is where you cloned from (the origin). Downstream is any project that integrates your work with other works.

The terms are not restricted to Git repositories.

For instance, Ubuntu is a Debian derivative, so Debian is upstream for Ubuntu.

Remove final character from string

What you are trying to do is an extension of string slicing in Python:

Say all strings are of length 10, last char to be removed:

>>> st[:9]
'abcdefghi'

To remove last N characters:

>>> N = 3
>>> st[:-N]
'abcdefg'

Rails: How can I rename a database column in a Ruby on Rails migration?

rename_column :table, :old_column, :new_column

You'll probably want to create a separate migration to do this. (Rename FixColumnName as you will.):

script/generate migration FixColumnName
# creates  db/migrate/xxxxxxxxxx_fix_column_name.rb

Then edit the migration to do your will:

# db/migrate/xxxxxxxxxx_fix_column_name.rb
class FixColumnName < ActiveRecord::Migration
  def self.up
    rename_column :table_name, :old_column, :new_column
  end

  def self.down
    # rename back if you need or do something else or do nothing
  end
end

For Rails 3.1 use:

While, the up and down methods still apply, Rails 3.1 receives a change method that "knows how to migrate your database and reverse it when the migration is rolled back without the need to write a separate down method".

See "Active Record Migrations" for more information.

rails g migration FixColumnName

class FixColumnName < ActiveRecord::Migration
  def change
    rename_column :table_name, :old_column, :new_column
  end
end

If you happen to have a whole bunch of columns to rename, or something that would have required repeating the table name over and over again:

rename_column :table_name, :old_column1, :new_column1
rename_column :table_name, :old_column2, :new_column2
...

You could use change_table to keep things a little neater:

class FixColumnNames < ActiveRecord::Migration
  def change
    change_table :table_name do |t|
      t.rename :old_column1, :new_column1
      t.rename :old_column2, :new_column2
      ...
    end
  end
end

Then just db:migrate as usual or however you go about your business.

For Rails 4:

While creating a Migration for renaming a column, Rails 4 generates a change method instead of up and down as mentioned in the above section. The generated change method is:

$ > rails g migration ChangeColumnName

which will create a migration file similar to:

class ChangeColumnName < ActiveRecord::Migration
  def change
    rename_column :table_name, :old_column, :new_column
  end
end

Reactive forms - disabled attribute

I found that I needed to have a default value, even if it was an empty string for it to work. So this:

this.registerForm('someName', {
  firstName: new FormControl({disabled: true}),
});

...had to become this:

this.registerForm('someName', {
  firstName: new FormControl({value: '', disabled: true}),
});

See my question (which I don't believe is a duplicate): Passing 'disabled' in form state object to FormControl constructor doesn't work

Difference between Return and Break statements

In this code i is iterated till 3 then the loop ends;

int function (void)
{
    for (int i=0; i<5; i++)
    {
      if (i == 3)
      {
         break;
      }
    }
}

In this code i is iterated till 3 but with an output;

int function (void)
{
    for (int i=0; i<5; i++)
    {
      if (i == 3)
      {
         return i;
      }
    }
}

How to change date format using jQuery?

var d = new Date();

var curr_date = d.getDate();

var curr_month = d.getMonth();

var curr_year = d.getFullYear();

curr_year = curr_year.toString().substr(2,2);

document.write(curr_date+"-"+curr_month+"-"+curr_year);

You can change this as your need..

PHP: Call to undefined function: simplexml_load_string()

I think it can be something like in this Post: Class 'SimpleXMLElement' not found on puphpet PHP 5.6 So maybe you could install/activate

php-xml or php-simplexml

Do not forget to activate the libraries in the php.ini file. (like the top comment)

Mapping list in Yaml to list of objects in Spring Boot

I tried 2 solutions, both work.

Solution_1

.yml

available-users-list:
  configurations:
    -
      username: eXvn817zDinHun2QLQ==
      password: IP2qP+BQfWKJMVeY7Q==
    -
      username: uwJlOl/jP6/fZLMm0w==
      password: IP2qP+BQKJLIMVeY7Q==

LoginInfos.java

@ConfigurationProperties(prefix = "available-users-list")
@Configuration
@Component
@Data
public class LoginInfos {
    private List<LoginInfo> configurations;

    @Data
    public static class LoginInfo {
        private String username;
        private String password;
    }

}

List<LoginInfos.LoginInfo> list = loginInfos.getConfigurations();

Solution_2

.yml

available-users-list: '[{"username":"eXvn817zHBVn2QLQ==","password":"IfWKJLIMVeY7Q=="}, {"username":"uwJlOl/g9jP6/0w==","password":"IP2qWKJLIMVeY7Q=="}]'

Java

@Value("${available-users-listt}")
String testList;

ObjectMapper mapper = new ObjectMapper();
LoginInfos.LoginInfo[] array = mapper.readValue(testList, LoginInfos.LoginInfo[].class);

How to parse an RSS feed using JavaScript?

Trying to find a good solution for this now, I happened upon the FeedEk jQuery RSS/ATOM Feed Plugin that does a great job of parsing and displaying RSS and Atom feeds via the jQuery Feed API. For a basic XML-based RSS feed, I've found it works like a charm and needs no server-side scripts or other CORS workarounds for it to run even locally.

Detect whether there is an Internet connection available on Android

Step 1: Create a class AppStatus in your project(you can give any other name also). Then please paste the given below lines into your code:

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;


public class AppStatus {

    private static AppStatus instance = new AppStatus();
    static Context context;
    ConnectivityManager connectivityManager;
    NetworkInfo wifiInfo, mobileInfo;
    boolean connected = false;

    public static AppStatus getInstance(Context ctx) {
        context = ctx.getApplicationContext();
        return instance;
    }

    public boolean isOnline() {
        try {
            connectivityManager = (ConnectivityManager) context
                        .getSystemService(Context.CONNECTIVITY_SERVICE);

        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
        connected = networkInfo != null && networkInfo.isAvailable() &&
                networkInfo.isConnected();
        return connected;


        } catch (Exception e) {
            System.out.println("CheckConnectivity Exception: " + e.getMessage());
            Log.v("connectivity", e.toString());
        }
        return connected;
    }
}

Step 2: Now to check if the your device has network connectivity then just add this code snippet where ever you want to check ...

if (AppStatus.getInstance(this).isOnline()) {

    Toast.makeText(this,"You are online!!!!",8000).show();

} else {

    Toast.makeText(this,"You are not online!!!!",8000).show();
    Log.v("Home", "############################You are not online!!!!");    
}

What's the best way to join on the same table twice?

My problem was to display the record even if no or only one phone number exists (full address book). Therefore I used a LEFT JOIN which takes all records from the left, even if no corresponding exists on the right. For me this works in Microsoft Access SQL (they require the parenthesis!)

SELECT t.PhoneNumber1, t.PhoneNumber2, t.PhoneNumber3
   t1.SomeOtherFieldForPhone1, t2.someOtherFieldForPhone2, t3.someOtherFieldForPhone3
FROM 
(
 (
  Table1 AS t LEFT JOIN Table2 AS t3 ON t.PhoneNumber3 = t3.PhoneNumber
 )
 LEFT JOIN Table2 AS t2 ON t.PhoneNumber2 = t2.PhoneNumber
)
LEFT JOIN Table2 AS t1 ON t.PhoneNumber1 = t1.PhoneNumber;

Pass command parameter to method in ViewModel in WPF?

Try this:

 public class MyVmBase : INotifyPropertyChanged
{
  private ICommand _clickCommand;
   public ICommand ClickCommand
    {
        get
        {
            return _clickCommand ?? (_clickCommand = new CommandHandler( MyAction));
        }
    }
    
       public void MyAction(object message)
    {
        if(message == null)
        {
            Notify($"Method {message} not defined");
            return;
        }
        switch (message.ToString())
        {
            case "btnAdd":
                {
                    btnAdd_Click();
                    break;
                }

            case "BtnEdit_Click":
                {
                    BtnEdit_Click();
                    break;
                }

            default:
                throw new Exception($"Method {message} not defined");
                break;
        }
    }
}

  public class CommandHandler : ICommand
{
    private Action<object> _action;
    private Func<object, bool> _canExecute;

    /// <summary>
    /// Creates instance of the command handler
    /// </summary>
    /// <param name="action">Action to be executed by the command</param>
    /// <param name="canExecute">A bolean property to containing current permissions to execute the command</param>
    public CommandHandler(Action<object> action, Func<object, bool> canExecute)
    {
        if (action == null) throw new ArgumentNullException(nameof(action));
        _action = action;
        _canExecute = canExecute ?? (x => true);
    }
    public CommandHandler(Action<object> action) : this(action, null)
    {
    }

    /// <summary>
    /// Wires CanExecuteChanged event 
    /// </summary>
    public event EventHandler CanExecuteChanged
    {
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }

    /// <summary>
    /// Forcess checking if execute is allowed
    /// </summary>
    /// <param name="parameter"></param>
    /// <returns></returns>
    public bool CanExecute(object parameter)
    {
        return _canExecute(parameter);
    }

    public void Execute(object parameter)
    {
        _action(parameter);
    }
    public void Refresh()
    {
        CommandManager.InvalidateRequerySuggested();
    }
}

And in xaml:

     <Button
    Command="{Binding ClickCommand}"
    CommandParameter="BtnEdit_Click"/>

Append an object to a list in R in amortized constant time, O(1)?

If it's a list of string, just use the c() function :

R> LL <- list(a="tom", b="dick")
R> c(LL, c="harry")
$a
[1] "tom"

$b
[1] "dick"

$c
[1] "harry"

R> class(LL)
[1] "list"
R>

That works on vectors too, so do I get the bonus points?

Edit (2015-Feb-01): This post is coming up on its fifth birthday. Some kind readers keep repeating any shortcomings with it, so by all means also see some of the comments below. One suggestion for list types:

newlist <- list(oldlist, list(someobj))

In general, R types can make it hard to have one and just one idiom for all types and uses.

Postgres DB Size Command

Yes, there is a command to find the size of a database in Postgres. It's the following:

SELECT pg_database.datname as "database_name", pg_size_pretty(pg_database_size(pg_database.datname)) AS size_in_mb FROM pg_database ORDER by size_in_mb DESC;

How to update two tables in one statement in SQL Server 2005?

The short answer to that is no. While you can enter multiple tables in the from clause of an update statement, you can only specify a single table after the update keyword. Even if you do write a "updatable" view (which is simply a view that follows certain restrictions), updates like this will fail. Here are the relevant clips from the MSDN documentation (emphasis is mine).

UPDATE (Transact-SQL)

The view referenced by table_or_view_name must be updatable and reference exactly one base table in the FROM clause of the view. For more information about updatable views, see CREATE VIEW (Transact-SQL).

CREATE VIEW (Transact-SQL)

You can modify the data of an underlying base table through a view, as long as the following conditions are true:

Any modifications, including UPDATE, INSERT, and DELETE statements, must reference columns from only one base table.

The columns being modified in the view must directly reference the underlying data in the table columns. The columns cannot be derived in any other way, such as through the following:

An aggregate function: AVG, COUNT, SUM, MIN, MAX, GROUPING, STDEV, STDEVP, VAR, and VARP.

A computation. The column cannot be computed from an expression that uses other columns. Columns that are formed by using the set operators UNION, UNION ALL, CROSSJOIN, EXCEPT, and INTERSECT amount to a computation and are also not updatable.

The columns being modified are not affected by GROUP BY, HAVING, or DISTINCT clauses.

TOP is not used anywhere in the select_statement of the view together with the WITH CHECK OPTION clause.

In all honesty, though, you should consider using two different SQL statements within a transaction as per LBushkin's example.

UPDATE: My original assertion that you could update multiple tables in an updatable view was wrong. On SQL Server 2005 & 2012, it will generate the following error. I have corrected my answer to reflect this.

Msg 4405, Level 16, State 1, Line 1

View or function 'updatable_view' is not updatable because the modification affects multiple base tables.

Select values from XML field in SQL Server 2008

Given that the XML field is named 'xmlField'...

SELECT 
[xmlField].value('(/person//firstName/node())[1]', 'nvarchar(max)') as FirstName,
[xmlField].value('(/person//lastName/node())[1]', 'nvarchar(max)') as LastName
FROM [myTable]

How to remove text from a string?

_x000D_

var ret = "data-123".replace('data-','');_x000D_
console.log(ret);   //prints: 123

_x000D_

Docs.

For all occurrences to be discarded use:

var ret = "data-123".replace(/data-/g,'');

PS: The replace function returns a new string and leaves the original string unchanged, so use the function return value after the replace() call.

Project with path ':mypath' could not be found in root project 'myproject'

Remove all the texts in android/settings.gradle and paste the below code

rootProject.name = '****Your Project Name****'
apply from: file("../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesSettingsGradle(settings)
include ':app'

This issue will usually happen when you migrate from react-native < 0.60 to react-native >0.60. If you create a new project in react-native >0.60 you will see the same settings as above mentioned

Search a string in a file and delete it from this file by Shell Script

This should do it:

sed -e s/deletethis//g -i *
sed -e "s/deletethis//g" -i.backup *
sed -e "s/deletethis//g" -i .backup *

it will replace all occurrences of "deletethis" with "" (nothing) in all files (*), editing them in place.

In the second form the pattern can be edited a little safer, and it makes backups of any modified files, by suffixing them with ".backup".

The third form is the way some versions of sed like it. (e.g. Mac OS X)

man sed for more information.

Angular 2: import external js file into component

1) First Insert JS file path in an index.html file :

<script src="assets/video.js" type="text/javascript"></script>

2) Import JS file and declare the variable in component.ts :

import './../../../assets/video.js';
declare var RunPlayer: any;

NOTE: Variable name should be same as the name of a function in js file

3) Call the js method in the component

ngAfterViewInit(){

    setTimeout(() => {
        new RunPlayer();
    });

}

How to count duplicate rows in pandas dataframe?

You can groupby on all the columns and call size the index indicates the duplicate values:

In [28]:
df.groupby(df.columns.tolist(),as_index=False).size()

Out[28]:
one    three  two  
False  False  True     1
True   False  False    2
       True   True     1
dtype: int64

Couldn't process file resx due to its being in the Internet or Restricted zone or having the mark of the web on the file

None of the suggestions above worked for me so I created a new file with a slightly different name and copied the contents of the offending file into the new file, renamed the offending file and renamed the new file with the offending file's name. Worked like a charm. Problem solved.

Asp Net Web API 2.1 get client IP address

I think this is the most clear solution, using an extension method:

public static class HttpRequestMessageExtensions
{
    private const string HttpContext = "MS_HttpContext";
    private const string RemoteEndpointMessage = "System.ServiceModel.Channels.RemoteEndpointMessageProperty";

    public static string GetClientIpAddress(this HttpRequestMessage request)
    {
        if (request.Properties.ContainsKey(HttpContext))
        {
            dynamic ctx = request.Properties[HttpContext];
            if (ctx != null)
            {
                return ctx.Request.UserHostAddress;
            }
        }

        if (request.Properties.ContainsKey(RemoteEndpointMessage))
        {
            dynamic remoteEndpoint = request.Properties[RemoteEndpointMessage];
            if (remoteEndpoint != null)
            {
                return remoteEndpoint.Address;
            }
        }

        return null;
    }
}

So just use it like:

var ipAddress = request.GetClientIpAddress();

We use this in our projects.

Source/Reference: Retrieving the client’s IP address in ASP.NET Web API

Uncaught TypeError: Cannot read property 'ownerDocument' of undefined

In case you are appending to the DOM, make sure the content is compatible:

modal.find ('div.modal-body').append (content) // check content

How to use Bootstrap in an Angular project?

I had the same question and found this article with a really clean solution:

http://leon.radley.se/2017/01/angular-cli-and-bootstrap-4/

Here are the instructions, but with my simplified solution:

Install Bootstrap 4 (instructions):

npm install --save [email protected]

If needed, rename your src/styles.css to styles.scss and update .angular-cli.json to reflect the change:

"styles": [
  "styles.scss"
],

Then add this line to styles.scss:

@import '~bootstrap/scss/bootstrap';

Accessing AppDelegate from framework?

If you're creating a framework the whole idea is to make it portable. Tying a framework to the app delegate defeats the purpose of building a framework. What is it you need the app delegate for?

SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or restore process?

SELECT session_id as SPID, command, a.text AS Query, start_time, percent_complete, dateadd(second,estimated_completion_time/1000, getdate()) as estimated_completion_time 
FROM sys.dm_exec_requests r CROSS APPLY sys.dm_exec_sql_text(r.sql_handle) a 
WHERE r.command in ('BACKUP DATABASE','RESTORE DATABASE')

Run an Ansible task only when the variable contains a specific string

This works for me in Ansible 2.9:

variable1 = www.example.com. 
variable2 = www.example.org. 

when: ".com" in variable1

and for not:

when: not ".com" in variable2

Windows equivalent to UNIX pwd

It is cd for "current directory".

SELECT inside a COUNT

You don't really need a sub-select:

SELECT a, COUNT(*) AS b,
   SUM( CASE WHEN c = 'const' THEN 1 ELSE 0 END ) as d,
   from t group by a order by b desc

Ternary operation in CoffeeScript

In almost any language this should work instead:

a = true  && 5 || 10
a = false && 5 || 10

Draw horizontal rule in React Native

I was able to draw a separator with flexbox properties even with a text in the center of line.

<View style={{flexDirection: 'row', alignItems: 'center'}}>
  <View style={{flex: 1, height: 1, backgroundColor: 'black'}} />
  <View>
    <Text style={{width: 50, textAlign: 'center'}}>Hello</Text>
  </View>
  <View style={{flex: 1, height: 1, backgroundColor: 'black'}} />
</View>

How can I select rows with most recent timestamp for each key value?

WITH SensorTimes As (
   SELECT sensorID, MAX(timestamp) "LastReading"
   FROM sensorTable
   GROUP BY sensorID
)
SELECT s.sensorID,s.timestamp,s.sensorField1,s.sensorField2 
FROM sensorTable s
INNER JOIN SensorTimes t on s.sensorID = t.sensorID and s.timestamp = t.LastReading

How do I mock an autowired @Value field in Spring with Mockito?

I used the below code and it worked for me:

@InjectMocks
private ClassABC classABC;

@Before
public void setUp() {
    ReflectionTestUtils.setField(classABC, "constantFromConfigFile", 3);
}

Reference: https://www.jeejava.com/mock-an-autowired-value-field-in-spring-with-junit-mockito/

Align labels in form next to input

Answered a question such as this before, you can take a look at the results here:

Creating form to have fields and text next to each other - what is the semantic way to do it?

So to apply the same rules to your fiddle you can use display:inline-block to display your label and input groups side by side, like so:

CSS

input {
    margin-top: 5px;
    margin-bottom: 5px;
    display:inline-block;
    *display: inline;     /* for IE7*/
    zoom:1;              /* for IE7*/
    vertical-align:middle;
    margin-left:20px
}

label {
    display:inline-block;
    *display: inline;     /* for IE7*/
    zoom:1;              /* for IE7*/
    float: left;
    padding-top: 5px;
    text-align: right;
    width: 140px;
}

updated fiddle

Jackson JSON: get node name from json-tree

JsonNode root = mapper.readTree(json);
root.at("/some-node").fields().forEachRemaining(e -> {
                              System.out.println(e.getKey()+"---"+ e.getValue());

        });

In one line Jackson 2+

View stored procedure/function definition in MySQL

You can use this:

SELECT ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES
WHERE ROUTINE_SCHEMA = 'yourdb' AND ROUTINE_TYPE = 'PROCEDURE' AND ROUTINE_NAME = "procedurename";

How do I put text on ProgressBar?

I tried placing a label with transparent background over a progress bar but never got it to work properly. So I found Barry's solution here very useful, although I missed the beautiful Vista style progress bar. So I merged Barry's solution with http://www.dreamincode.net/forums/topic/243621-percent-into-progress-bar/ and managed to keep the native progress bar, while displaying text percentage or custom text over it. I don't see any flickering in this solution either. Sorry to dig up and old thread but I needed this today and so others may need it too.

public enum ProgressBarDisplayText
{
    Percentage,
    CustomText
}

class ProgressBarWithCaption : ProgressBar
{
    //Property to set to decide whether to print a % or Text
    private ProgressBarDisplayText m_DisplayStyle;
    public ProgressBarDisplayText DisplayStyle {
        get { return m_DisplayStyle; }
        set { m_DisplayStyle = value; }
    }

    //Property to hold the custom text
    private string m_CustomText;
    public string CustomText {
        get { return m_CustomText; }
        set {
            m_CustomText = value;
            this.Invalidate();
        }
    }

    private const int WM_PAINT = 0x000F;
    protected override void WndProc(ref Message m)
    {
        base.WndProc(m);

        switch (m.Msg) {
            case WM_PAINT:
                int m_Percent = Convert.ToInt32((Convert.ToDouble(Value) / Convert.ToDouble(Maximum)) * 100);
                dynamic flags = TextFormatFlags.VerticalCenter | TextFormatFlags.HorizontalCenter | TextFormatFlags.SingleLine | TextFormatFlags.WordEllipsis;

                using (Graphics g = Graphics.FromHwnd(Handle)) {
                    using (Brush textBrush = new SolidBrush(ForeColor)) {

                        switch (DisplayStyle) {
                            case ProgressBarDisplayText.CustomText:
                                TextRenderer.DrawText(g, CustomText, new Font("Arial", Convert.ToSingle(8.25), FontStyle.Regular), new Rectangle(0, 0, this.Width, this.Height), Color.Black, flags);
                                break;
                            case ProgressBarDisplayText.Percentage:
                                TextRenderer.DrawText(g, string.Format("{0}%", m_Percent), new Font("Arial", Convert.ToSingle(8.25), FontStyle.Regular), new Rectangle(0, 0, this.Width, this.Height), Color.Black, flags);
                                break;
                        }

                    }
                }

                break;
        }

    }

}

How can I do width = 100% - 100px in CSS?

Could you nest a div with margin-left: 50px; and margin-right: 50px; inside a <div> with width: 100%;?

How to add a button programmatically in VBA next to some sheet cell data?

I think this is enough to get you on a nice path:

Sub a()
  Dim btn As Button
  Application.ScreenUpdating = False
  ActiveSheet.Buttons.Delete
  Dim t As Range
  For i = 2 To 6 Step 2
    Set t = ActiveSheet.Range(Cells(i, 3), Cells(i, 3))
    Set btn = ActiveSheet.Buttons.Add(t.Left, t.Top, t.Width, t.Height)
    With btn
      .OnAction = "btnS"
      .Caption = "Btn " & i
      .Name = "Btn" & i
    End With
  Next i
  Application.ScreenUpdating = True
End Sub

Sub btnS()
 MsgBox Application.Caller
End Sub

It creates the buttons and binds them to butnS(). In the btnS() sub, you should show your dialog, etc.

Mathematica graphics

Can I hide/show asp:Menu items based on role?

To remove a MenuItem from an ASP.net NavigationMenu by Value:

public static void RemoveMenuItemByValue(MenuItemCollection items, String value)
{
   MenuItem itemToRemove = null;

   //Breadth first, look in the collection
   foreach (MenuItem item in items)
   {
      if (item.Value == value)
      {
          itemToRemove = item;
          break;
      }
   }

   if (itemToRemove != null)
   {
      items.Remove(itemToRemove);
      return;
   }


   //Search children
   foreach (MenuItem item in items)
   {
       RemoveMenuItemByValue(item.ChildItems, value);
   }
}

and helper extension:

public static RemoveMenuItemByValue(this NavigationMenu menu, String value)
{
   RemoveMenuItemByValue(menu.Items, value);
}

and sample usage:

navigationMenu.RemoveMenuItemByValue("UnitTests");

Note: Any code is released into the public domain. No attribution required.

How to bind inverse boolean properties in WPF?

I would recommend using https://quickconverter.codeplex.com/

Inverting a boolean is then as simple as: <Button IsEnabled="{qc:Binding '!$P', P={Binding IsReadOnly}}" />

That speeds the time normally needed to write converters.

How to validate date with format "mm/dd/yyyy" in JavaScript?

Use the following regular expression to validate:

var date_regex = /^(0[1-9]|1[0-2])\/(0[1-9]|1\d|2\d|3[01])\/(19|20)\d{2}$/;
if (!(date_regex.test(testDate))) {
    return false;
}

This is working for me for MM/dd/yyyy.

How to read a file byte by byte in Python and how to print a bytelist as a binary?

There's a python module especially made for reading and writing to and from binary encoded data called 'struct'. Since versions of Python under 2.6 doesn't support str.format, a custom method needs to be used to create binary formatted strings.

import struct

# binary string
def bstr(n): # n in range 0-255
    return ''.join([str(n >> x & 1) for x in (7,6,5,4,3,2,1,0)])

# read file into an array of binary formatted strings.
def read_binary(path):
    f = open(path,'rb')
    binlist = []
    while True:
        bin = struct.unpack('B',f.read(1))[0] # B stands for unsigned char (8 bits)
        if not bin:
            break
        strBin = bstr(bin)
        binlist.append(strBin)
    return binlist

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MyController':

Copied from the stacktrace:

BeanInstantiationException: Could not instantiate bean class [com.gestEtu.project.model.dao.CompteDAOHib]: No default constructor found; nested exception is java.lang.NoSuchMethodException: com.gestEtu.project.model.dao.CompteDAOHib.<init>()

By default, Spring will try to instantiate beans by calling a default (no-arg) constructor. The problem in your case is that the implementation of the CompteDAOHib has a constructor with a SessionFactory argument. By adding the @Autowired annotation to a constructor, Spring will attempt to find a bean of matching type, SessionFactory in your case, and provide it as a constructor argument, e.g.

@Autowired
public CompteDAOHib(SessionFactory sessionFactory) {
    // ...
}

Maximum size for a SQL Server Query? IN clause? Is there a Better Approach

Can you load the GUIDs into a scratch table then do a

... WHERE var IN SELECT guid FROM #scratchtable

How do I create a circle or square with just CSS - with a hollow center?

To my knowledge there is no cross-browser compatible way to make a circle with CSS & HTML only.

For the square I guess you could make a div with a border and a z-index higher than what you are putting it over. I don't understand why you would need to do this, when you could just put a border on the image or "something" itself.

If anyone else knows how to make a circle that is cross browser compatible with CSS & HTML only, I would love to hear about it!

@Caspar Kleijne border-radius does not work in IE8 or below, not sure about 9.

PostgreSQL function for last inserted ID

Based on @ooZman 's answer above, this seems to work for PostgreSQL v12 when you need to INSERT with the next value of a "sequence" (akin to auto_increment) without goofing anything up in your table(s) counter(s). (Note: I haven't tested it in more complex DB cluster configurations though...)

Psuedo Code

$insert_next_id = $return_result->query(" select (setval('"your_id_seq"', (select nextval('"your_id_seq"')) - 1, true)) +1; ")

Eclipse gives “Java was started but returned exit code 13”

When I uninstalled Java 8 it worked fine.

What is the easiest/best/most correct way to iterate through the characters of a string in Java?

Note most of the other techniques described here break down if you're dealing with characters outside of the BMP (Unicode Basic Multilingual Plane), i.e. code points that are outside of the u0000-uFFFF range. This will only happen rarely, since the code points outside this are mostly assigned to dead languages. But there are some useful characters outside this, for example some code points used for mathematical notation, and some used to encode proper names in Chinese.

In that case your code will be:

String str = "....";
int offset = 0, strLen = str.length();
while (offset < strLen) {
  int curChar = str.codePointAt(offset);
  offset += Character.charCount(curChar);
  // do something with curChar
}

The Character.charCount(int) method requires Java 5+.

Source: http://mindprod.com/jgloss/codepoint.html

Using R to list all files with a specified extension

I am not very good in using sophisticated regular expressions, so I'd do such task in the following way:

files <- list.files()
dbf.files <- files[-grep(".xml", files, fixed=T)]

First line just lists all files from working dir. Second one drops everything containing ".xml" (grep returns indices of such strings in 'files' vector; subsetting with negative indices removes corresponding entries from vector). "fixed" argument for grep function is just my whim, as I usually want it to peform crude pattern matching without Perl-style fancy regexprs, which may cause surprise for me.

I'm aware that such solution simply reflects drawbacks in my education, but for a novice it may be useful =) at least it's easy.

How to convert JSON object to an Typescript array?

You have a JSON object that contains an Array. You need to access the array results. Change your code to:

this.data = res.json().results

implement time delay in c

For delays as large as one minute, sleep() is a nice choice.

If someday, you want to pause on delays smaller than one second, you may want to consider poll() with a timeout.

Both are POSIX.

How do you overcome the svn 'out of date' error?

Error is because you didn't updated that particular file, first update then only you can commit the file.

Bootstrap: how do I change the width of the container?

Simply add container to sticky navbar ;

Giving UIView rounded corners

Swift

Short answer:

myView.layer.cornerRadius = 8
myView.layer.masksToBounds = true  // optional

Supplemental Answer

If you have come to this answer, you have probably already seen enough to solve your problem. I'm adding this answer to give a bit more visual explanation for why things do what they do.

If you start with a regular UIView it has square corners.

let blueView = UIView()
blueView.frame = CGRect(x: 100, y: 100, width: 100, height: 50)
blueView.backgroundColor = UIColor.blueColor()
view.addSubview(blueView)

You can give it round corners by changing the cornerRadius property of the view's layer.

blueView.layer.cornerRadius = 8

Larger radius values give more rounded corners

blueView.layer.cornerRadius = 25

and smaller values give less rounded corners.

blueView.layer.cornerRadius = 3

This might be enough to solve your problem right there. However, sometimes a view can have a subview or a sublayer that goes outside of the view's bounds. For example, if I were to add a subview like this

let mySubView = UIView()
mySubView.frame = CGRect(x: 20, y: 20, width: 100, height: 100)
mySubView.backgroundColor = UIColor.redColor()
blueView.addSubview(mySubView)

or if I were to add a sublayer like this

let mySubLayer = CALayer()
mySubLayer.frame = CGRect(x: 20, y: 20, width: 100, height: 100)
mySubLayer.backgroundColor = UIColor.redColor().CGColor
blueView.layer.addSublayer(mySubLayer)

Then I would end up with

Now, if I don't want things hanging outside of the bounds, I can do this

blueView.clipsToBounds = true

or this

blueView.layer.masksToBounds = true

which gives this result:

Both clipsToBounds and masksToBounds are equivalent. It is just that the first is used with UIView and the second is used with CALayer.

You are not mentioning the permissions in right place. Like right above application.
You are not using small letters.
In some case you also have to add Network state permission.
One which was my case there are some blank lines in manifest lines. Like there might be a blank line between permission tag and application line. Remove them and you are done. Hope it will help

Find methods calls in Eclipse project

Right click on method and click on Open call Hierarchy

How can I do a line break (line continuation) in Python?

It may not be the Pythonic way, but I generally use a list with the join function for writing a long string, like SQL queries:

query = " ".join([
    'SELECT * FROM "TableName"',
    'WHERE "SomeColumn1"=VALUE',
    'ORDER BY "SomeColumn2"',
    'LIMIT 5;'
])

How to generate and validate a software license key?

The only way to do everything you asked for is to require an internet access and verification with a server. The application needs to sign in to the server with the key, and then you need to store the session details, like the IP address. This will prevent the key from being used on several different machines. This is usually not very popular with the users of the application, and unless this is a very expensive and complicated application it's not worth it.

You could just have a license key for the application, and then check client side if the key is good, but it is easy to distribute this key to other users, and with a decompiler new keys can be generated.

Trigger event when user scroll to specific element - with jQuery

You could use this for all devices,

$(document).on('scroll', function() {
    if( $(this).scrollTop() >= $('#target_element').position().top ){
        do_something();
    }
});

Get data from JSON file with PHP

Get the content of the JSON file using file_get_contents():

$str = file_get_contents('http://example.com/example.json/');

Now decode the JSON using json_decode():

$json = json_decode($str, true); // decode the JSON into an associative array

You have an associative array containing all the information. To figure out how to access the values you need, you can do the following:

echo '<pre>' . print_r($json, true) . '</pre>';

This will print out the contents of the array in a nice readable format. Note that the second parameter is set to true in order to let print_r() know that the output should be returned (rather than just printed to screen). Then, you access the elements you want, like so:

$temperatureMin = $json['daily']['data'][0]['temperatureMin'];
$temperatureMax = $json['daily']['data'][0]['temperatureMax'];

Or loop through the array however you wish:

foreach ($json['daily']['data'] as $field => $value) {
    // Use $field and $value here
}

Demo!

How are POST and GET variables handled in Python?

Python is only a language, to get GET and POST data, you need a web framework or toolkit written in Python. Django is one, as Charlie points out, the cgi and urllib standard modules are others. Also available are Turbogears, Pylons, CherryPy, web.py, mod_python, fastcgi, etc, etc.

In Django, your view functions receive a request argument which has request.GET and request.POST. Other frameworks will do it differently.

C# Select elements in list as List of string

List<string> empnames = emplist.Select(e => e.Ename).ToList();

This is an example of Projection in Linq. Followed by a ToList to resolve the IEnumerable<string> into a List<string>.

Alternatively in Linq syntax (head compiled):

var empnamesEnum = from emp in emplist 
                   select emp.Ename;
List<string> empnames = empnamesEnum.ToList();

Projection is basically representing the current type of the enumerable as a new type. You can project to anonymous types, another known type by calling constructors etc, or an enumerable of one of the properties (as in your case).

For example, you can project an enumerable of Employee to an enumerable of Tuple<int, string> like so:

var tuples = emplist.Select(e => new Tuple<int, string>(e.EID, e.Ename));

How to remove carriage returns and new lines in Postgresql?

select regexp_replace(field, E'[\\n\\r]+', ' ', 'g' )

read the manual http://www.postgresql.org/docs/current/static/functions-matching.html

How to link C++ program with Boost using CMake

Here is my take:

cmake_minimum_required(VERSION 3.15)

project(TryOuts LANGUAGES CXX)

find_package(Boost QUIET REQUIRED COMPONENTS program_options)

if(NOT Boost_FOUND)
    message(FATAL_ERROR "Boost Not found")
endif()

add_executable(helloworld main.cpp)

target_link_libraries(helloworld PUBLIC Boost::program_options)

How can I stop float left?

You could modify .adm and add

.adm{
 clear:both;
}

That should make it move to a new line

Run a single migration file

Please notice that instead of script/runner, you may have to use rails runner on new rails environments.

C#: How would I get the current time into a string?

You can use format strings as well.

string time = DateTime.Now.ToString("hh:mm:ss"); // includes leading zeros
string date = DateTime.Now.ToString("dd/MM/yy"); // includes leading zeros

or some shortcuts if the format works for you

string time = DateTime.Now.ToShortTimeString();
string date = DateTime.Now.ToShortDateString();

Either should work.

Submit form using a button outside the <form> tag

Here's a pretty solid solution that incorporates the best ideas so far as well as includes my solution to a problem highlighted with Offerein's. No javascript is used.

If you care about backwards compatibility with IE (and even Edge 13), you can't use the form="your-form" attribute.

Use a standard submit input with display none and add a label for it outside the form:

<form id="your-form">
  <input type="submit" id="your-form-submit" style="display: none;">
</form>

Note the use of display: none;. This is intentional. Using bootstrap's .hidden class conflicts with jQuery's .show() and .hide(), and has since been deprecated in Bootstrap 4.

Now simply add a label for your submit, (styled for bootstrap):

<label for="your-form-submit" role="button" class="btn btn-primary" tabindex="0">
  Submit
</label>

Unlike other solutions, I'm also using tabindex - set to 0 - which means that we are now compatible with keyboard tabbing. Adding the role="button" attribute gives it the CSS style cursor: pointer. Et voila. (See this fiddle).

SQL datetime format to date only

if you are using SQL Server use convert

e.g. select convert(varchar(10), DeliveryDate, 103) as ShortDate

more information here: http://msdn.microsoft.com/en-us/library/aa226054(v=sql.80).aspx

c# search string in txt file

You have to use while since foreach does not know about index. Below is an example code.

int counter = 0;
string line;

Console.Write("Input your search text: ");
var text = Console.ReadLine();

System.IO.StreamReader file =
    new System.IO.StreamReader("SampleInput1.txt");

while ((line = file.ReadLine()) != null)
{
    if (line.Contains(text))
    {
        break;
    }

    counter++;
}

Console.WriteLine("Line number: {0}", counter);

file.Close();

Console.ReadLine();

Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3

A simpler version of your code would be:

dict(zip(names, d.values()))

If you want to keep the same structure, you can change it to:

vlst = list(d.values())
{names[i]: vlst[i] for i in range(len(names))}

(You can just as easily put list(d.values()) inside the comprehension instead of vlst; it's just wasteful to do so since it would be re-generating the list every time).

What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)

// Checks for an empty collection, and sends the value set in the default constructor for the desired field
public static TResult MinGuarded<T, TResult>(this IEnumerable<T> items, Func<T, TResult> expression) where T : new() {
    if(items.IsEmpty()) {
        return (new List<T> { new T() }).Min(expression);
    }
    return items.Min(expression);
}

// Checks for an empty collection, and sends the value set in the default constructor for the desired field
public static TResult MaxGuarded<T, TResult>(this IEnumerable<T> items, Func<T, TResult> expression) where T : new() {
    if(items.IsEmpty()) {
        return (new List<T> { new T() }).Max(expression);
    }
    return items.Max(expression);
}

I am not sure if there is a better way to do this, but this extension is very helpful whenever I want to have control over the default values of fields in my object.
For instance, if I want to control the value of a DateTime and want to be set as per my business logic, then I can do so in the default constructor. Otherwise, it comes out to be DateTime.MinDate.

Conditionally formatting cells if their value equals any value of another column

Here is the formula

create a new rule in conditional formating based on a formula. Use the following formula and apply it to $A:$A

=NOT(ISERROR(MATCH(A1,$B$1:$B$1000,0)))

enter image description here

here is the example sheet to download if you encounter problems

UPDATE
here is @pnuts's suggestion which works perfect as well:

=MATCH(A1,B:B,0)>0

Display current path in terminal only

If you just want to get the information of current directory, you can type:

pwd

and you don't need to use the Nautilus, or you can use a teamviewer software to remote connect to the computer, you can get everything you want.

How to increase the max upload file size in ASP.NET?

If you use sharepoint you should configure max size with Administrative Tools too: kb925083

How to make custom dialog with rounded corners in android

For API level >= 28 available attribute android:dialogCornerRadius . To support previous API versions need use

<style name="RoundedDialog" parent="Theme.AppCompat.Light.Dialog.Alert">
        <item name="android:windowBackground">@drawable/dialog_bg</item>
    </style>

where dialog_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item >
        <shape >
            <solid android:color="@android:color/transparent" />
        </shape>
    </item>
    <item
        android:left="16dp"
        android:right="16dp">
        <shape>
            <solid
                android:color="@color/white"/>
            <corners
                android:radius="8dp" />

            <padding
                android:left="16dp"
                android:right="16dp" />
        </shape>
    </item>
</layer-list>

What is the equivalent of the C++ Pair<L,R> in Java?

android provides Pairclass (http://developer.android.com/reference/android/util/Pair.html) , here the implementation:

public class Pair<F, S> {
    public final F first;
    public final S second;

    public Pair(F first, S second) {
        this.first = first;
        this.second = second;
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof Pair)) {
            return false;
        }
        Pair<?, ?> p = (Pair<?, ?>) o;
        return Objects.equal(p.first, first) && Objects.equal(p.second, second);
    }

    @Override
    public int hashCode() {
        return (first == null ? 0 : first.hashCode()) ^ (second == null ? 0 : second.hashCode());
    }

    public static <A, B> Pair <A, B> create(A a, B b) {
        return new Pair<A, B>(a, b);
    }
}

String: How to replace multiple possible characters with a single character?

Deleting Objects in JavaScript

"variables declared implicitly" are properties of the global object, so delete works on them like it works on any property. Variables declared with var are indestructible.

How to handle "Uncaught (in promise) DOMException: play() failed because the user didn't interact with the document first." on Desktop with Chrome 66?

In my case, I had to do this

 // Initialization in the dom
 // Consider the muted attribute
 <audio id="notification" src="path/to/sound.mp3" muted></audio>


 // in the js code unmute the audio once the event happened
 document.getElementById('notification').muted = false;
 document.getElementById('notification').play();

Which is faster: Stack allocation or Heap allocation

As others have said, stack allocation is generally much faster.

However, if your objects are expensive to copy, allocating on the stack may lead to an huge performance hit later when you use the objects if you aren't careful.

For example, if you allocate something on the stack, and then put it into a container, it would have been better to allocate on the heap and store the pointer in the container (e.g. with a std::shared_ptr<>). The same thing is true if you are passing or returning objects by value, and other similar scenarios.

The point is that although stack allocation is usually better than heap allocation in many cases, sometimes if you go out of your way to stack allocate when it doesn't best fit the model of computation, it can cause more problems than it solves.

Subtracting time.Duration from time in Go

In response to Thomas Browne's comment, because lnmx's answer only works for subtracting a date, here is a modification of his code that works for subtracting time from a time.Time type.

package main

import (
    "fmt"
    "time"
)

func main() {
    now := time.Now()

    fmt.Println("now:", now)

    count := 10
    then := now.Add(time.Duration(-count) * time.Minute)
    // if we had fix number of units to subtract, we can use following line instead fo above 2 lines. It does type convertion automatically.
    // then := now.Add(-10 * time.Minute)
    fmt.Println("10 minutes ago:", then)
}

Produces:

now: 2009-11-10 23:00:00 +0000 UTC
10 minutes ago: 2009-11-10 22:50:00 +0000 UTC

Not to mention, you can also use time.Hour or time.Second instead of time.Minute as per your needs.

Playground: https://play.golang.org/p/DzzH4SA3izp

Determining if an Object is of primitive type

Get ahold of BeanUtils from Spring http://static.springsource.org/spring/docs/3.0.x/javadoc-api/

Probably the Apache variation (commons beans) has similar functionality.

How to open a new file in vim in a new window

Check out gVim. You can launch that in its own window.

gVim makes it really easy to manage multiple open buffers graphically.

You can also do the usual :e to open a new file, CTRL+^ to toggle between buffers, etc...

Another cool feature lets you open a popup window that lists all the buffers you've worked on.

This allows you to switch between open buffers with a single click.

To do this, click on the Buffers menu at the top and click the dotted line with the scissors.

enter image description here

Otherwise you can just open a new tab from your terminal session and launch vi from there.

You can usually open a new tab from terminal with CTRL+T or CTRL+ALT+T

Once vi is launched, it's easy to open new files and switch between them.

Schema validation failed with the following errors: Data path ".builders['app-shell']" should have required property 'class'

I have to say, if you don't want to change anything in package.json file, try to update your Node.js version to latest. (currently 12.13.1 LTS)

How do I use Ruby for shell scripting?

let's say you write your script.rb script. put:

#!/usr/bin/env ruby

as the first line and do a chmod +x script.rb

How to resolve Value cannot be null. Parameter name: source in linq?

When you call a Linq statement like this:

// x = new List<string>();
var count = x.Count(s => s.StartsWith("x"));

You are actually using an extension method in the System.Linq namespace, so what the compiler translates this into is:

var count = Enumerable.Count(x, s => s.StartsWith("x"));

So the error you are getting above is because the first parameter, source (which would be x in the sample above) is null.

HTML inside Twitter Bootstrap popover

This is an old question, but this is another way, using jQuery to reuse the popover and to keep using the original bootstrap data attributes to make it more semantic:

The link

<a href="#" rel="popover" data-trigger="focus" data-popover-content="#popover">
   Show it!
</a>

Custom content to show

<!-- Let's show the Bootstrap nav on the popover-->
<div id="list-popover" class="hide">
    <ul class="nav nav-pills nav-stacked">
        <li><a href="#">Action</a></li>
        <li><a href="#">Another action</a></li>
        <li><a href="#">Something else here</a></li>
        <li><a href="#">Separated link</a></li>
    </ul>
</div>

Javascript

$('[rel="popover"]').popover({
    container: 'body',
    html: true,
    content: function () {
        var clone = $($(this).data('popover-content')).clone(true).removeClass('hide');
        return clone;
    }
});

Fiddle with complete example: http://jsfiddle.net/tomsarduy/262w45L5/

how to check and set max_allowed_packet mysql variable

The following PHP worked for me (using mysqli extension but queries should be the same for other extensions):

$db = new mysqli( 'localhost', 'user', 'pass', 'dbname' );
// to get the max_allowed_packet
$maxp = $db->query( 'SELECT @@global.max_allowed_packet' )->fetch_array();
echo $maxp[ 0 ];
// to set the max_allowed_packet to 500MB
$db->query( 'SET @@global.max_allowed_packet = ' . 500 * 1024 * 1024 );

So if you've got a query you expect to be pretty long, you can make sure that mysql will accept it with something like:

$sql = "some really long sql query...";
$db->query( 'SET @@global.max_allowed_packet = ' . strlen( $sql ) + 1024 );
$db->query( $sql );

Notice that I added on an extra 1024 bytes to the length of the string because according to the manual,

The value should be a multiple of 1024; nonmultiples are rounded down to the nearest multiple.

That should hopefully set the max_allowed_packet size large enough to handle your query. I haven't tried this on a shared host, so the same caveat as @Glebushka applies.

How to set button click effect in Android?

This can be achieved by creating a drawable xml file containing a list of states for the button. So for example if you create a new xml file called "button.xml" with the following code:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/YOURIMAGE" />
    <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/gradient" />
    <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/gradient" />
    <item android:drawable="@drawable/YOURIMAGE" />
</selector>

To keep the background image with a darkened appearance on press, create a second xml file and call it gradient.xml with the following code:

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item>
        <bitmap android:src="@drawable/YOURIMAGE"/>
    </item>
    <item>
        <shape xmlns:android="http://schemas.android.com/apk/res/android">
            <gradient android:angle="90" android:startColor="#880f0f10" android:centerColor="#880d0d0f" android:endColor="#885d5d5e"/>
        </shape>
    </item>
</layer-list>

In the xml of your button set the background to be the button xml e.g.

android:background="@drawable/button"

Hope this helps!

Edit: Changed the above code to show an image (YOURIMAGE) in the button as opposed to a block colour.

Using querySelectorAll to retrieve direct children

Well we can easily get all the direct children of an element using childNodes and we can select ancestors with a specific class with querySelectorAll, so it's not hard to imagine we could create a new function that gets both and compares the two.

HTMLElement.prototype.queryDirectChildren = function(selector){
  var direct = [].slice.call(this.directNodes || []); // Cast to Array
  var queried = [].slice.call(this.querySelectorAll(selector) || []); // Cast to Array
  var both = [];
  // I choose to loop through the direct children because it is guaranteed to be smaller
  for(var i=0; i<direct.length; i++){
    if(queried.indexOf(direct[i])){
      both.push(direct[i]);
    }
  }
  return both;
}

Note: This will return an Array of Nodes, not a NodeList.

Usage

 document.getElementById("myDiv").queryDirectChildren(".foo");

What method in the String class returns only the first N characters?

public static string TruncateLongString(this string str, int maxLength)
{
    return str.Length <= maxLength ? str : str.Remove(maxLength);
}

How can I get customer details from an order in WooCommerce?

I just dealt with this. Depending on what you really want, you can get the details from the order like this:

$field = get_post_meta($order->id, $field_name, true);

Where $field_name is '_billing_address_1' or '_shipping_address_1'or 'first_name'. You can google the other fields, but don't forget the "" at the beginning.

If you want to retrieve the customer for this order, and get its field directly, it works as in your solution, except you do not need to retrieve the full customer object:

$customer_id = (int)$order->user_id;

$field = get_user_meta($customer_id, $field_name, true);

Now in this case, the $field_name does not start with "_". For example: 'first_name' and 'billing_address_1'.

How can I get the sha1 hash of a string in node.js?

You can use:

  const sha1 = require('sha1');
  const crypt = sha1('Text');
  console.log(crypt);

For install:

  sudo npm install -g sha1
  npm install sha1 --save

Find Facebook user (url to profile page) by known email address

Andreas, I've also been looking for an "email-to-id" ellegant solution and couldn't find one. However, as you said, screen scraping is not such a bad idea in this case, because emails are unique and you either get a single match or none. As long as Facebook don't change their search page drastically, the following will do the trick:

final static String USER_SEARCH_QUERY = "http://www.facebook.com/search.php?init=s:email&q=%s&type=users";
final static String USER_URL_PREFIX = "http://www.facebook.com/profile.php?id=";

public static String emailToID(String email)
{
    try
    {
        String html = getHTML(String.format(USER_SEARCH_QUERY, email));
        if (html != null)
        {
            int i = html.indexOf(USER_URL_PREFIX) + USER_URL_PREFIX.length();
            if (i > 0)
            {
                StringBuilder sb = new StringBuilder();
                char c;
                while (Character.isDigit(c = html.charAt(i++)))
                    sb.append(c);
                if (sb.length() > 0)
                    return sb.toString();
            }
        }
    } catch (Exception e)
    {
        e.printStackTrace();
    }
    return null;
}

private static String getHTML(String htmlUrl) throws MalformedURLException, IOException
{
    StringBuilder response = new StringBuilder();
    URL url = new URL(htmlUrl);
    HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
    httpConn.setRequestMethod("GET");
    if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK)
    {
        BufferedReader input = new BufferedReader(new InputStreamReader(httpConn.getInputStream()), 8192);
        String strLine = null;
        while ((strLine = input.readLine()) != null)
            response.append(strLine);
        input.close();
    }
    return (response.length() == 0) ? null : response.toString();
}

"The system cannot find the file specified"

start the sql server agent, that should fix your problem

How do I define a method which takes a lambda as a parameter in Java 8?

There is flexibility in using lambda as parameter. It enables functional programming in java. The basic syntax is

param -> method_body

Following is a way, you can define a method taking functional interface (lambda is used) as parameter. a. if you wish to define a method declared inside a functional interface, say, the functional interface is given as an argument/parameter to a method called from main()

@FunctionalInterface
interface FInterface{
    int callMeLambda(String temp);
}


class ConcreteClass{
        
    void funcUsesAnonymousOrLambda(FInterface fi){
        System.out.println("===Executing method arg instantiated with Lambda==="));
    }
        
    public static void main(){
        // calls a method having FInterface as an argument.
        funcUsesAnonymousOrLambda(new FInterface() {
        
            int callMeLambda(String temp){ //define callMeLambda(){} here..
                return 0;
            }
        }
    }
        
/***********Can be replaced by Lambda below*********/
        funcUsesAnonymousOrLambda( (x) -> {
            return 0; //(1)
        }
       
    }

FInterface fi = (x) -> { return 0; };

funcUsesAnonymousOrLambda(fi);

Here above it can be seen, how a lambda expression can be replaced with an interface.

Above explains a particular usage of lambda expression, there are more. ref Java 8 lambda within a lambda can't modify variable from outer lambda

configure: error: C compiler cannot create executables

I furiously read all of this page, hoping to find a solution for:

"configure: error: C compiler cannot create executables"

In the end nothing worked, because my problem was a "typing" one, and was related to CFLAGS. In my .bash_profile file I had:

export ARM_ARCH="arm64”
export CFLAGS="-arch ${ARM_ARCH}"

As you can observe --- export ARM_ARCH="arm64” --- the last quote sign is not the same with the first quote sign. The first one ( " ) is legal while the second one ( ” ) is not.
This happended because I made the mistake to use TextEdit (I'm working under MacOS), and this is apparently a feature called SmartQuotes: the quote sign CHANGES BY ITSELF TO THE ILLEGAL STYLE whenever you edit something just next to it.
Lesson learned: use a proper text editor...

How to count number of unique values of a field in a tab-delimited text file?

Assuming the data file is actually Tab separated, not space aligned:

<test.tsv awk '{print $4}' | sort | uniq

Where $4 will be:

$1 - Red
$2 - Ball
$3 - 1
$4 - Sold

How do I trap ctrl-c (SIGINT) in a C# console app

In my case, I passed an async lambda to Console.CancelKeyPress, which won't work.

Html- how to disable <a href>?

.disabledLink.disabled {pointer-events:none;}

That should do it hope I helped!

jQuery if Element has an ID?

Pure js approach:

var elem = document.getElementsByClassName('parent');
alert(elem[0].hasAttribute('id'));

JsFiddle Demo

Trigger css hover with JS

I know what you're trying to do, but why not simply do this:

$('div').addClass('hover');

The class is already defined in your CSS...

As for you original question, this has been asked before and it is not possible unfortunately. e.g. http://forum.jquery.com/topic/jquery-triggering-css-pseudo-selectors-like-hover

However, your desired functionality may be possible if your Stylesheet is defined in Javascript. see: http://www.4pmp.com/2009/11/dynamic-css-pseudo-class-styles-with-jquery/

Hope this helps!

Unix shell script find out which directory the script file resides?

If you're using bash....

#!/bin/bash

pushd $(dirname "${0}") > /dev/null
basedir=$(pwd -L)
# Use "pwd -P" for the path without links. man bash for more info.
popd > /dev/null

echo "${basedir}"

Swift Set to Array

I created a simple extension that gives you an unsorted Array as a property of Set in Swift 4.0.

extension Set {
    var array: [Element] {
        return Array(self)
    }
}

If you want a sorted array, you can either add an additional computed property, or modify the existing one to suit your needs.

To use this, just call

let array = set.array

How to handle anchor hash linking in AngularJS

There is no need to change any routing or anything else just need to use target="_self" when creating the links

Example:

<a href="#faq-1" target="_self">Question 1</a>
<a href="#faq-2" target="_self">Question 2</a>
<a href="#faq-3" target="_self">Question 3</a>

And use the id attribute in your html elements like this:

<h3 id="faq-1">Question 1</h3>
<h3 id="faq-2">Question 2</h3>
<h3 id="faq-3">Question 3</h3>

There is no need to use ## as pointed/mentioned in comments ;-)

Read only the first line of a file?

infile = open('filename.txt', 'r')
firstLine = infile.readline()

Use PPK file in Mac Terminal to connect to remote connection over SSH

You can ssh directly from the Terminal on Mac, but you need to use a .PEM key rather than the putty .PPK key. You can use PuttyGen on Windows to convert from .PEM to .PPK, I'm not sure about the other way around though.

You can also convert the key using putty for Mac via port or brew:

sudo port install putty

brew install putty

This will also install puttygen. To get puttygen to output a .PEM file:

puttygen privatekey.ppk -O private-openssh -o privatekey.pem

Once you have the key, open a terminal window and:

ssh -i privatekey.pem [email protected]

The private key must have tight security settings otherwise SSH complains. Make sure only the user can read the key.

chmod go-rw privatekey.pem

Gradle proxy configuration

If this issue with HTTP error 407 happened to selected packages only then the problem is not in the proxy setting and internet connection. You even may expose your PC to the internet through NAT and still will face this problem. Typically at the same time you can download desired packages in browser. The only solution I find: delete the .gradle folder in your profile (not in the project). After that sync the project, it will take a long time but restore everything.

How do I enable php to work with postgresql?

SO: Windows/Linux
HTTP Web Server: Apache
Programming language: PHP

Enable PHP to work with PostgreSQL in Apache

In Apache I edit the following configuration file: C:\xampp\php.ini

I make sure to have the following lines uncommented:

extension=php_pgsql.dll 
extension=php_pdo_pgsql.dll

Finally restart Apache before attempting a new connection to the database engine.

Also, I leave my code that ensures that the connection is unique:

private static $pdo = null;

public static function provideDataBaseInstance() {
    if (self::$pdo == null) {
        $dsn = "pgsql:host=" . HOST .
               ";port=5432;dbname=" . DATABASE .
               ";user=" . POSTGRESQL_USER .
               ";password=" . POSTGRESQL_PASSWORD;
        try {
            self::$pdo = new PDO($dsn);
        } catch (PDOException $exception) {
            $msg = $exception->getMessage();
            echo $msg . 
                 ". Do not forget to enable in the web server the database 
                  manager for php and in the database instance authorize the 
                  ip of the server instance if they not in the same 
                  instance.";
        }
    }
    return self::$pdo;
}

Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;

go to \bin\dexedLibs and remove all the jars of the already removed libraries, then clean

How to add the JDBC mysql driver to an Eclipse project?

you haven't loaded driver into memory. use this following in init()

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

Also, you missed a colon (:) in url, use this

String mySqlUrl = "jdbc:mysql://localhost:3306/mysql";

Java Inheritance - calling superclass method

You can't call alpha's alphaMethod1() by using beta's object But you have two solutions:

solution 1: call alpha's alphaMethod1() from beta's alphaMethod1()

class Beta extends Alpha
{
  public void alphaMethod1()
  {
    super.alphaMethod1();
  }
}

or from any other method of Beta like:

class Beta extends Alpha
{
  public void foo()
  {
     super.alphaMethod1();
  }
}

class Test extends Beta 
{
   public static void main(String[] args)
   {
      Beta beta = new Beta();
      beta.foo();
   }
}

solution 2: create alpha's object and call alpha's alphaMethod1()

class Test extends Beta
{
   public static void main(String[] args)
   {
      Alpha alpha = new Alpha();
      alpha.alphaMethod1();
   }
}

How to deny access to a file in .htaccess

Place the below line in your .htaccess file and replace the file name as you wish

RewriteRule ^(test\.php) - [F,L,NC]

TypeError: unhashable type: 'numpy.ndarray'

Your variable energies probably has the wrong shape:

>>> from numpy import array
>>> set([1,2,3]) & set(range(2, 10))
set([2, 3])
>>> set(array([1,2,3])) & set(range(2,10))
set([2, 3])
>>> set(array([[1,2,3],])) & set(range(2,10))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'numpy.ndarray'

And that's what happens if you read columnar data using your approach:

>>> data
array([[  1.,   2.,   3.],
       [  3.,   4.,   5.],
       [  5.,   6.,   7.],
       [  8.,   9.,  10.]])
>>> hsplit(data,3)[0]
array([[ 1.],
       [ 3.],
       [ 5.],
       [ 8.]])

Probably you can simply use

>>> data[:,0]
array([ 1.,  3.,  5.,  8.])

instead.

(P.S. Your code looks like it's undecided about whether it's data or elementdata. I've assumed it's simply a typo.)

How using try catch for exception handling is best practice

The catch without any arguments is simply eating the exception and is of no use. What if a fatal error occurs? There's no way to know what happened if you use catch without argument.

A catch statement should catch more specific Exceptions like FileNotFoundException and then at the very end you should catch Exception which would catch any other exception and log them.

Finding duplicate values in MySQL

Try using this query:

SELECT name, COUNT(*) value_count FROM company_master GROUP BY name HAVING value_count > 1;

How to know which is running in Jupyter notebook?

from platform import python_version

print(python_version())

This will give you the exact version of python running your script. eg output:

3.6.5

How to parse date string to Date?

new SimpleDateFormat("EEE MMM dd kk:mm:ss ZZZ yyyy");

and

new SimpleDateFormat("EEE MMM dd kk:mm:ss Z yyyy");

still runs. However, if your code throws an exception it is because your tool or jdk or any other reason. Because I got same error in my IDE but please check these http://ideone.com/Y2cRr (online ide) with ZZZ and with Z

output is : Thu Sep 28 11:29:30 GMT 2000

How do you comment an MS-access Query?

if you are trying to add a general note to the overall object (query or table etc..)

Access 2016 go to navigation pane, highlight object, right click, select object / table properties, add a note in the description window i.e. inventory "table last last updated 05/31/17"

Jquery function return value

I'm not entirely sure of the general purpose of the function, but you could always do this:

function getMachine(color, qty) {
    var retval;
    $("#getMachine li").each(function() {
        var thisArray = $(this).text().split("~");
        if(thisArray[0] == color&& qty>= parseInt(thisArray[1]) && qty<= parseInt(thisArray[2])) {
            retval = thisArray[3];
            return false;
        }
    });
    return retval;
}

var retval = getMachine(color, qty);

int to string in MySQL

Try it using CONCAT

CONCAT('site.com/path/','%', CAST(t1.id AS CHAR(25)), '%','/more')

What are the various "Build action" settings in Visual Studio project properties and what do they do?

Fakes: Part of the Microsoft Fakes (Unit Test Isolation) Framework. Not available on all Visual Studio versions. Fakes are used to support unit testing in your project, helping you isolate the code you are testing by replacing other parts of the application with stubs or shims. More here: https://msdn.microsoft.com/en-us/library/hh549175.aspx

How to Convert UTC Date To Local time Zone in MySql Select Query

 select convert_tz(now(),@@session.time_zone,'+05:30')

replace '+05:30' with desired timezone. see here - https://stackoverflow.com/a/3984412/2359994

to format into desired time format, eg:

 select DATE_FORMAT(convert_tz(now(),@@session.time_zone,'+05:30') ,'%b %d %Y %h:%i:%s %p')

you will get similar to this -> Dec 17 2014 10:39:56 AM

Make WPF Application Fullscreen (Cover startmenu)

window.WindowStyle = WindowStyle.None;
window.ResizeMode = ResizeMode.NoResize;
window.Left = 0;
window.Top = 0;
window.Width = SystemParameters.VirtualScreenWidth;
window.Height = SystemParameters.VirtualScreenHeight;
window.Topmost = true;

Works with multiple screens

Limit characters displayed in span

You can use css ellipsis; but you have to give fixed width and overflow:hidden: to that element.

_x000D_

<span style="display:block;text-overflow: ellipsis;width: 200px;overflow: hidden; white-space: nowrap;">_x000D_
 Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat._x000D_
 </span>

_x000D_

How to access the last value in a vector?

I have another method for finding the last element in a vector. Say the vector is a.

> a<-c(1:100,555)
> end(a)      #Gives indices of last and first positions
[1] 101   1
> a[end(a)[1]]   #Gives last element in a vector
[1] 555

There you go!

How to connect to SQL Server from another computer?

Disclamer

This is just some additional information that might help anyone. I want to make it abundantly clear that what I am describing here is possibly:

A. not 100% correct and
B. not safe in terms of network security.

I am not a DBA, but every time I find myself setting up a SQL Server (Express or Full) for testing or what not I run into the connectivity issue. The solution I am describing is more for the person who is just trying to get their job done - consult someone who is knowledgeable in this field when setting up a production server.

For SQL Server 2008 R2 this is what I end up doing:

Make sure everything is squared away like in this tutorial which is the same tutorial posted above as a solution by "Dani" as the selected answer to this question.
Check and/or set, your firewall settings for the computer that is hosting the SQL Server. If you are using a Windows Server 2008 R2 then use the Server Manager, go to Configuration and then look at "Windows Firewall with Advanced Security". If you are using Windows 7 then go to Control Panel and search for "Firewall" click on "Allow a program through Windows Firewall".
- Create an inbound rule for port TCP 1433 - allow the connection
- Create an outbound rule for port TCP 1433 - allow the connection
When you are finished with the firewall settings you are going to want to check one more thing. Open up the "SQL Server Configuration Manager" locate: SQL Server Network Configuration - Protocols for SQLEXPRESS (or equivalent) - TCP/IP
- Double click on TCP/IP
- Click on the IP Addresses tab
- Under IP1 set the TCP Port to 1433 if it hasn't been already
- Under IP All set the TCP Port to 1433 if it hasn't been already
Restart SQL Server and SQL Browser (do both just to be on the safe side)

Usually after I do what I mentioned above I don't have a problem anymore. Here is a screenshot of what to look for - for that last step:

Port 1433 is the default port used by SQL Server but for some reason doesn't show up in the configuration by default.

Again, if someone with more information about this topic sees a red flag please correct me.

Simplest way to profile a PHP script

The PECL APD extension is used as follows:

<?php
apd_set_pprof_trace();

//rest of the script
?>

After, parse the generated file using pprofp.

Example output:

Trace for /home/dan/testapd.php
Total Elapsed Time = 0.00
Total System Time  = 0.00
Total User Time    = 0.00


Real         User        System             secs/    cumm
%Time (excl/cumm)  (excl/cumm)  (excl/cumm) Calls    call    s/call  Memory Usage Name
--------------------------------------------------------------------------------------
100.0 0.00 0.00  0.00 0.00  0.00 0.00     1  0.0000   0.0009            0 main
56.9 0.00 0.00  0.00 0.00  0.00 0.00     1  0.0005   0.0005            0 apd_set_pprof_trace
28.0 0.00 0.00  0.00 0.00  0.00 0.00    10  0.0000   0.0000            0 preg_replace
14.3 0.00 0.00  0.00 0.00  0.00 0.00    10  0.0000   0.0000            0 str_replace

Warning: the latest release of APD is dated 2004, the extension is no longer maintained and has various compability issues (see comments).

How to change the output color of echo in Linux

This is the color switch \033[. See history.

Color codes are like 1;32 (Light Green), 0;34 (Blue), 1;34 (Light Blue), etc.

We terminate color sequences with a color switch \033[ and 0m, the no-color code. Just like opening and closing tabs in a markup language.

  SWITCH="\033["
  NORMAL="${SWITCH}0m"
  YELLOW="${SWITCH}1;33m"
  echo "${YELLOW}hello, yellow${NORMAL}"

Simple color echo function solution:

cecho() {
  local code="\033["
  case "$1" in
    black  | bk) color="${code}0;30m";;
    red    |  r) color="${code}1;31m";;
    green  |  g) color="${code}1;32m";;
    yellow |  y) color="${code}1;33m";;
    blue   |  b) color="${code}1;34m";;
    purple |  p) color="${code}1;35m";;
    cyan   |  c) color="${code}1;36m";;
    gray   | gr) color="${code}0;37m";;
    *) local text="$1"
  esac
  [ -z "$text" ] && local text="$color$2${code}0m"
  echo "$text"
}

cecho "Normal"
cecho y "Yellow!"

When does SQLiteOpenHelper onCreate() / onUpgrade() run?

Points to remember when extending SQLiteOpenHelper

super(context, DBName, null, DBversion); - This should be invoked first line of constructor
override onCreate and onUpgrade (if needed)
onCreate will be invoked only when getWritableDatabase() or getReadableDatabase() is executed. And this will only invoked once when a DBName specified in the first step is not available. You can add create table query on onCreate method
Whenever you want to add new table just change DBversion and do the queries in onUpgrade table or simply uninstall then install the app.

Javascript Regular Expression Remove Spaces

str.replace(/\s/g,'')

Works for me.

jQuery.trim has the following hack for IE, although I'm not sure what versions it affects:

// Check if a string has a non-whitespace character in it
rnotwhite = /\S/

// IE doesn't match non-breaking spaces with \s
if ( rnotwhite.test( "\xA0" ) ) {
    trimLeft = /^[\s\xA0]+/;
    trimRight = /[\s\xA0]+$/;
}

UnicodeDecodeError, invalid continuation byte

This happened to me also, while i was reading text containing Hebrew from a .txt file.

I clicked: file -> save as and I saved this file as a UTF-8 encoding

MongoDB running but can't connect using shell

Delete /var/lib/mongodb/mongod.lock, then issue sudo service mongodb start, then mongo.

websocket.send() parameter

As I understand it, you want the server be able to send messages through from client 1 to client 2. You cannot directly connect two clients because one of the two ends of a WebSocket connection needs to be a server.

This is some pseudocodish JavaScript:

Client:

var websocket = new WebSocket("server address");

websocket.onmessage = function(str) {
  console.log("Someone sent: ", str);
};

// Tell the server this is client 1 (swap for client 2 of course)
websocket.send(JSON.stringify({
  id: "client1"
}));

// Tell the server we want to send something to the other client
websocket.send(JSON.stringify({
  to: "client2",
  data: "foo"
}));

Server:

var clients = {};

server.on("data", function(client, str) {
  var obj = JSON.parse(str);

  if("id" in obj) {
    // New client, add it to the id/client object
    clients[obj.id] = client;
  } else {
    // Send data to the client requested
    clients[obj.to].send(obj.data);
  }
});

Debian 8 (Live-CD) what is the standard login and password?

Although this is an old question, I had the same question when using the Standard console version. The answer can be found in the Debian Live manual under the section 10.1 Customizing the live user. It says:

It is also possible to change the default username "user" and the default password "live".

I tried the username user and password live and it did work. If you want to run commands as root you can preface each command with sudo

How to capture Curl output to a file?

A tad bit late, but I think the OP was looking for something like:

curl -K myfile.txt --trace-asci output.txt

Not class selector in jQuery

You can use the :not filter selector:

$('foo:not(".someClass")')

Or not() method:

$('foo').not(".someClass")

More Info:

How to insert data using wpdb

global $wpdb;
$insert = $wpdb->query("INSERT INTO `front-post`(`id`, `content`) VALUES ('$id', '$content')");

Which is preferred: Nullable<T>.HasValue or Nullable<T> != null?

I prefer (a != null) so that the syntax matches reference types.

How can I convert a DateTime to an int?

I think you want (this won't fit in a int though, you'll need to store it as a long):

long result = dateDate.Year * 10000000000 + dateDate.Month * 100000000 + dateDate.Day * 1000000 + dateDate.Hour * 10000 + dateDate.Minute * 100 + dateDate.Second;

Alternatively, storing the ticks is a better idea.

Attach a body onload event with JS

Why not use window's own onload event ?

window.onload = function () {
      alert("LOADED!");
}

If I'm not mistaken, that is compatible across all browsers.

How to change the text color of first select option

For Option 1 used as the placeholder:

select:invalid { color:grey; }

All other options:

select:valid { color:black; }

Builder Pattern in Effective Java

You are trying access a non-static class in a static way. Change Builder to static class Builder and it should work.

The example usage you give fails because there is no instance of Builder present. A static class for all practical purposes is always instantiated. If you don't make it static, you'd need to say:

Widget = new Widget.Builder(10).setparm1(1).setparm2(3).build();

Because you would need to construct a new Builder every time.

Combine multiple results in a subquery into a single comma-separated value

1. Create the UDF:

CREATE FUNCTION CombineValues
(
    @FK_ID INT -- The foreign key from TableA which is used 
               -- to fetch corresponding records
)
RETURNS VARCHAR(8000)
AS
BEGIN
DECLARE @SomeColumnList VARCHAR(8000);

SELECT @SomeColumnList =
    COALESCE(@SomeColumnList + ', ', '') + CAST(SomeColumn AS varchar(20)) 
FROM TableB C
WHERE C.FK_ID = @FK_ID;

RETURN 
(
    SELECT @SomeColumnList
)
END

2. Use in subquery:

SELECT ID, Name, dbo.CombineValues(FK_ID) FROM TableA

3. If you are using stored procedure you can do like this:

CREATE PROCEDURE GetCombinedValues
 @FK_ID int
As
BEGIN
DECLARE @SomeColumnList VARCHAR(800)
SELECT @SomeColumnList =
    COALESCE(@SomeColumnList + ', ', '') + CAST(SomeColumn AS varchar(20)) 
FROM TableB
WHERE FK_ID = @FK_ID 

Select *, @SomeColumnList as SelectedIds
    FROM 
        TableA
    WHERE 
        FK_ID = @FK_ID 
END

ReflectionException: Class ClassName does not exist - Laravel

You need to assign it to a name space for it to be found.

namespace App\Http\Controllers;

How do I install Python packages in Google's Colab?

Joining the party late, but just as a complement, I ran into some problems with Seaborn not so long ago, because CoLab installed a version with !pip that wasn't updated. In my specific case, I couldn't use Scatterplot, for example. The answer to this is below:

To install the module, all you need is:

!pip install seaborn

To upgrade it to the most updated version:

!pip install --upgrade seaborn

If you want to install a specific version

!pip install seaborn==0.9.0

I believe all the rules common to pip apply normally, so that pretty much should work.

Submitting a form by pressing enter without a submit button

The most elegant way of doing this is to keep the submit-button, but set it's border, padding and font-size to 0.

This will make the button dimensions 0x0.

<input type="submit" style="border:0; padding:0; font-size:0">

You can try this yourself, and by setting an outline to the element you will see a dot, which is the outside border "surrounding" the 0x0 px element.

No need for visibility:hidden, but if it makes you sleep at night, you can throw that in the mix as well.

JS Fiddle

How to run or debug php on Visual Studio Code (VSCode)

There is a much easier way to run PHP, no configuration needed:

Install the Code Runner Extension
Open the PHP code file in Text Editor
- use shortcut Ctrl+Alt+N
- or press F1 and then select/type Run Code,
- or right click the Text Editor and then click Run Code in editor context menu
- or click Run Code button in editor title menu
- or click Run Code button in context menu of file explorer

Besides, you could select part of the PHP code and run the code snippet. Very convenient!

Why I get 'list' object has no attribute 'items'?

If you don't care about the type of the numbers you can simply use:

qs[0].values()

Can someone give an example of cosine similarity, in a very simple, graphical way?

Here's a simple Python code to calculate cosine similarity:

import math

def dot_prod(v1, v2):
    ret = 0
    for i in range(len(v1)):
        ret += v1[i] * v2[i]
    return ret

def magnitude(v):
    ret = 0
    for i in v:
        ret += i**2
    return math.sqrt(ret)

def cos_sim(v1, v2):
    return (dot_prod(v1, v2)) / (magnitude(v1) * magnitude(v2))

Difference between chr(13) and chr(10)

Chr(10) is the Line Feed character and Chr(13) is the Carriage Return character.

You probably won't notice a difference if you use only one or the other, but you might find yourself in a situation where the output doesn't show properly with only one or the other. So it's safer to include both.

Historically, Line Feed would move down a line but not return to column 1:

This  
    is  
        a  
            test.

Similarly Carriage Return would return to column 1 but not move down a line:

This  
is  
a  
test.

Paste this into a text editor and then choose to "show all characters", and you'll see both characters present at the end of each line. Better safe than sorry.

Test if a command outputs an empty string

Here's an alternative approach that writes the std-out and std-err of some command a temporary file, and then checks to see if that file is empty. A benefit of this approach is that it captures both outputs, and does not use sub-shells or pipes. These latter aspects are important because they can interfere with trapping bash exit handling (e.g. here)

tmpfile=$(mktemp)
some-command  &> "$tmpfile"
if [[ $? != 0 ]]; then
    echo "Command failed"
elif [[ -s "$tmpfile" ]]; then
    echo "Command generated output"
else
    echo "Command has no output"
fi
rm -f "$tmpfile"

How to use Morgan logger?

Just do this:

app.use(morgan('tiny'));

and it will work.

Python For loop get index

Use the enumerate() function to generate the index along with the elements of the sequence you are looping over:

for index, w in enumerate(loopme):
    print "CURRENT WORD IS", w, "AT CHARACTER", index

Make a float only show two decimal places

Use NSNumberFormatter with maximumFractionDigits as below:

NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
formatter.maximumFractionDigits = 2;
NSLog(@"%@", [formatter stringFromNumber:[NSNumber numberWithFloat:12.345]]);

And you will get 12.35

What is the difference between IEnumerator and IEnumerable?

An Enumerator shows you the items in a list or collection. Each instance of an Enumerator is at a certain position (the 1st element, the 7th element, etc) and can give you that element (IEnumerator.Current) or move to the next one (IEnumerator.MoveNext). When you write a foreach loop in C#, the compiler generates code that uses an Enumerator.

An Enumerable is a class that can give you Enumerators. It has a method called GetEnumerator which gives you an Enumerator that looks at its items. When you write a foreach loop in C#, the code that it generates calls GetEnumerator to create the Enumerator used by the loop.

How do you change the formatting options in Visual Studio Code?

A solution that works for me (July 2017), is to utilize ESLint. As everybody knows, you can use the linter in multiple ways, globally or locally. I use it locally and with the google style guide. They way I set it up is as follow...

cd to your working directory
npm init
npm install --save-dev eslint
node_modules/.bin/eslint --init
I use google style and json config file

Now you will have a .eslintrc.json file the root of your working directory. You can open that file and modify as you please utilizing the eslint rules. Next cmd+, to open vscode system preferences. In the search bar type eslint and look for "eslint.autoFixOnSave": false. Copy the setting and pasted in the user settings file and change false to true. Hope this can help someone utilizing vscode.

Is it possible to run an .exe or .bat file on 'onclick' in HTML

You can do it on Internet explorer with OCX component and on chrome browser using a chrome extension chrome document in any case need additional settings on the client system!

Important part of chrome extension source:

var port = chrome.runtime.connectNative("your.app.id"); 
      port.onMessage.addListener(onNativeMessage); 
      port.onDisconnect.addListener(onDisconnected);
      port.postMessage("send some data to STDIO");

permission file:

{
      "name": "your.app.id",
      "description": "Name of your extension",
      "path": "myapp.exe",
      "type": "stdio",
      "allowed_origins": [
            "chrome-extension://IDOFYOUREXTENSION_lokldaeplkmh/"
      ]
}

and windows registry settings:

HKEY_CURRENT_USER\Software\Google\Chrome\NativeMessagingHosts\your.app.id
REG_EXPAND_SZ : c:\permissionsettings.json

String Array object in Java

Currently you can't access the arrays named name and country, because they are member variables of your Athelete class.

Based on what it looks like you're trying to do, this will not work.

These arrays belong in your main class.

How to extract text from the PDF document?

Download the class.pdf2text.php @ https://pastebin.com/dvwySU1a or http://www.phpclasses.org/browse/file/31030.html (Registration required)

Code:

include('class.pdf2text.php');
$a = new PDF2Text();
$a->setFilename('filename.pdf'); 
$a->decodePDF();
echo $a->output();

class.pdf2text.php Project Home
pdf2textclass doesn't work with all the PDF's I've tested, If it doesn't work for you, try PDF Parser

MongoNetworkError: failed to connect to server [localhost:27017] on first connect [MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017]

You have to install MongoDB database server first in your system and start it.

Use the below link to install MongoDB

https://docs.mongodb.com/manual/installation/

docker: "build" requires 1 argument. See 'docker build --help'

In case anyone is running into this problem when trying to tag -t the image and also build it from a file that is NOT named Dockerfile (i.e. not using simply the . path), you can do it like this:

docker build -t my_image -f my_dockerfile .

Notice that docker expects a directory as the parameter and the filename as an option.

How to export private key from a keystore of self-signed certificate

http://anandsekar.github.io/exporting-the-private-key-from-a-jks-keystore/

public class ExportPrivateKey {
        private File keystoreFile;
        private String keyStoreType;
        private char[] password;
        private String alias;
        private File exportedFile;

        public static KeyPair getPrivateKey(KeyStore keystore, String alias, char[] password) {
                try {
                        Key key=keystore.getKey(alias,password);
                        if(key instanceof PrivateKey) {
                                Certificate cert=keystore.getCertificate(alias);
                                PublicKey publicKey=cert.getPublicKey();
                                return new KeyPair(publicKey,(PrivateKey)key);
                        }
                } catch (UnrecoverableKeyException e) {
        } catch (NoSuchAlgorithmException e) {
        } catch (KeyStoreException e) {
        }
        return null;
        }

        public void export() throws Exception{
                KeyStore keystore=KeyStore.getInstance(keyStoreType);
                BASE64Encoder encoder=new BASE64Encoder();
                keystore.load(new FileInputStream(keystoreFile),password);
                KeyPair keyPair=getPrivateKey(keystore,alias,password);
                PrivateKey privateKey=keyPair.getPrivate();
                String encoded=encoder.encode(privateKey.getEncoded());
                FileWriter fw=new FileWriter(exportedFile);
                fw.write(“—–BEGIN PRIVATE KEY—–\n“);
                fw.write(encoded);
                fw.write(“\n“);
                fw.write(“—–END PRIVATE KEY—–”);
                fw.close();
        }


        public static void main(String args[]) throws Exception{
                ExportPrivateKey export=new ExportPrivateKey();
                export.keystoreFile=new File(args[0]);
                export.keyStoreType=args[1];
                export.password=args[2].toCharArray();
                export.alias=args[3];
                export.exportedFile=new File(args[4]);
                export.export();
        }
}

How do I get the position selected in a RecyclerView?

No need to have your ViewHolder implementing View.OnClickListener. You can get directly the clicked position by setting a click listener in the method onCreateViewHolder of RecyclerView.Adapter here is a sample of code :

public class ItemListAdapterRecycler extends RecyclerView.Adapter<ItemViewHolder>
{

    private final List<Item> items;

    public ItemListAdapterRecycler(List<Item> items)
    {
        this.items = items;
    }

    @Override
    public ItemViewHolder onCreateViewHolder(final ViewGroup parent, int viewType)
    {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false);

        view.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View view)
            {
                int currentPosition = getClickedPosition(view);
                Log.d("DEBUG", "" + currentPosition);
            }
        });

        return new ItemViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ItemViewHolder itemViewHolder, int position)
    {
        ...
    }

    @Override
    public int getItemCount()
    {
        return items.size();
    }

    private int getClickedPosition(View clickedView)
    {
        RecyclerView recyclerView = (RecyclerView) clickedView.getParent();
        ItemViewHolder currentViewHolder = (ItemViewHolder) recyclerView.getChildViewHolder(clickedView);
        return currentViewHolder.getAdapterPosition();
    }

}

Is a view faster than a simple query?

There should be some trivial gain in having the execution plan stored, but it will be negligible.

How to round up integer division and have int result in Java?

To round up an integer division you can use

import static java.lang.Math.abs;

public static long roundUp(long num, long divisor) {
    int sign = (num > 0 ? 1 : -1) * (divisor > 0 ? 1 : -1);
    return sign * (abs(num) + abs(divisor) - 1) / abs(divisor);
}

or if both numbers are positive

public static long roundUp(long num, long divisor) {
    return (num + divisor - 1) / divisor;
}

MS Excel showing the formula in a cell instead of the resulting value

If you are using Excel 2013 Than do the following File > Option > Advanced > Under Display options for this worksheet: uncheck the checkbox before Show formulas in cells instead of their calculated results This should resolve the issue.

How do I copy a string to the clipboard?

Here's the most easy and reliable way I found if you're okay depending on Pandas. However I don't think this is officially part of the Pandas API so it may break with future updates. It works as of 0.25.3

from pandas.io import clipboard
clipboard.copy("test")

How to get user agent in PHP

Use the native PHP $_SERVER['HTTP_USER_AGENT'] variable instead.

Get fragment (value after hash '#') from a URL in php

You need to parse the url first, so it goes like this:

$url = "https://www.example.com/profile#picture";
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'

If you need to parse the actual url of the current browser, you need to request to call the server.

$url = $_SERVER["REQUEST_URI"];
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'

What is the difference between Builder Design pattern and Factory Design pattern?

IMHO

Builder is some kind of more complex Factory.

But in Builder you can instantiate objects with using another factories, that are required to build final and valid object.

So, talking about "Creational Patterns" evolution by complexity you can think about it in this way:

Dependency Injection Container -> Service Locator -> Builder -> Factory

How to execute multiple SQL statements from java

you can achieve that using Following example uses addBatch & executeBatch commands to execute multiple SQL commands simultaneously.

Batch Processing allows you to group related SQL statements into a batch and submit them with one call to the database. reference

When you send several SQL statements to the database at once, you reduce the amount of communication overhead, thereby improving performance.

JDBC drivers are not required to support this feature. You should use the DatabaseMetaData.supportsBatchUpdates() method to determine if the target database supports batch update processing. The method returns true if your JDBC driver supports this feature.
The addBatch() method of Statement, PreparedStatement, and CallableStatement is used to add individual statements to the batch. The executeBatch() is used to start the execution of all the statements grouped together.
The executeBatch() returns an array of integers, and each element of the array represents the update count for the respective update statement.
Just as you can add statements to a batch for processing, you can remove them with the clearBatch() method. This method removes all the statements you added with the addBatch() method. However, you cannot selectively choose which statement to remove.

EXAMPLE:

import java.sql.*;

public class jdbcConn {
   public static void main(String[] args) throws Exception{
      Class.forName("org.apache.derby.jdbc.ClientDriver");
      Connection con = DriverManager.getConnection
      ("jdbc:derby://localhost:1527/testDb","name","pass");

      Statement stmt = con.createStatement
      (ResultSet.TYPE_SCROLL_SENSITIVE,
      ResultSet.CONCUR_UPDATABLE);
      String insertEmp1 = "insert into emp values
      (10,'jay','trainee')";
      String insertEmp2 = "insert into emp values
      (11,'jayes','trainee')";
      String insertEmp3 = "insert into emp values
      (12,'shail','trainee')";
      con.setAutoCommit(false);
      stmt.addBatch(insertEmp1);//inserting Query in stmt
      stmt.addBatch(insertEmp2);
      stmt.addBatch(insertEmp3);
      ResultSet rs = stmt.executeQuery("select * from emp");
      rs.last();
      System.out.println("rows before batch execution= "
      + rs.getRow());
      stmt.executeBatch();
      con.commit();
      System.out.println("Batch executed");
      rs = stmt.executeQuery("select * from emp");
      rs.last();
      System.out.println("rows after batch execution= "
      + rs.getRow());
   }
}

refer http://www.tutorialspoint.com/javaexamples/jdbc_executebatch.htm

Compare two Byte Arrays? (Java)

Check out the static java.util.Arrays.equals() family of methods. There's one that does exactly what you want.

Android: adb: Permission Denied

You might need to activate adb root from the developer settings menu. If you run adb root from the cmd line you can get:

root access is disabled by system setting - enable in settings -> development options

Once you activate the root option (ADB only or Apps and ADB) adb will restart and you will be able to use root from the cmd line.

tslint / codelyzer / ng lint error: "for (... in ...) statements must be filtered with an if statement"

A neater way of applying @Helzgate's reply is possibly to replace your 'for .. in' with

for (const field of Object.keys(this.formErrors)) {

Using PropertyInfo to find out the property type

I just stumbled upon this great post. If you are just checking whether the data is of string type then maybe we can skip the loop and use this struct (in my humble opinion)

public static bool IsStringType(object data)
    {
        return (data.GetType().GetProperties().Where(x => x.PropertyType == typeof(string)).FirstOrDefault() != null);
    }

.map() a Javascript ES6 Map?

You can use myMap.forEach, and in each loop, using map.set to change value.

_x000D_

myMap = new Map([_x000D_
  ["a", 1],_x000D_
  ["b", 2],_x000D_
  ["c", 3]_x000D_
]);_x000D_
_x000D_
for (var [key, value] of myMap.entries()) {_x000D_
  console.log(key + ' = ' + value);_x000D_
}_x000D_
_x000D_
_x000D_
myMap.forEach((value, key, map) => {_x000D_
  map.set(key, value+1)_x000D_
})_x000D_
_x000D_
for (var [key, value] of myMap.entries()) {_x000D_
  console.log(key + ' = ' + value);_x000D_
}

_x000D_

How do I import the javax.servlet API in my Eclipse project?

Little bit difference from Hari:

Right click on project ---> Properties ---> Java Build Path ---> Add Library... ---> Server Runtime ---> Apache Tomcat ----> Finish.

Remove spacing between table cells and rows

Put display:block on the css for the cell, and valign="top" that should do the trick

MySQL Job failed to start

In my case:

restart server
restart mysql
create .socket in directory

'too many values to unpack', iterating over a dict. key=>string, value=>list

Can't be iterating directly in dictionary. So you can through converting into tuple.

first_names = ['foo', 'bar']
last_names = ['gravy', 'snowman']

fields = {
    'first_names': first_names,
    'last_name': last_names,
         } 
tup_field=tuple(fields.items())
for names in fields.items():
     field,possible_values = names
     tup_possible_values=tuple(possible_values)
     for pvalue in tup_possible_values:
           print (field + "is" + pvalue)

How to check if a specified key exists in a given S3 bucket using Java

Alternatively you can use Minio-Java client library, its Open Source and compatible with AWS S3 API.

You can use Minio-Java StatObject.java examples for the same.

import io.minio.MinioClient;
import io.minio.errors.MinioException;

import java.io.InputStream;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.InvalidKeyException;

import org.xmlpull.v1.XmlPullParserException;


public class GetObject {
  public static void main(String[] args)
    throws NoSuchAlgorithmException, IOException, InvalidKeyException, XmlPullParserException, MinioException {
    // Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY and my-bucketname are
    // dummy values, please replace them with original values.
    // Set s3 endpoint, region is calculated automatically
    MinioClient s3Client = new MinioClient("https://s3.amazonaws.com", "YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY");
    InputStream stream = s3Client.getObject("my-bucketname", "my-objectname");

    byte[] buf = new byte[16384];
    int bytesRead;
    while ((bytesRead = stream.read(buf, 0, buf.length)) >= 0) {
      System.out.println(new String(buf, 0, bytesRead));
    }

    stream.close();
  }
}

I hope it helps.

Disclaimer : I work for Minio

How can I dynamically switch web service addresses in .NET without a recompile?

As long as the web service methods and underlying exposed classes do not change, it's fairly trivial. With Visual Studio 2005 (and newer), adding a web reference creates an app.config (or web.config, for web apps) section that has this URL. All you have to do is edit the app.config file to reflect the desired URL.

In our project, our simple approach was to just have the app.config entries commented per environment type (development, testing, production). So we just uncomment the entry for the desired environment type. No special coding needed there.

Using 'make' on OS X

In addition, if you have migrated your user files and applications from one mac to another, you need to install Apple Developer Tools all over again. The migration assistant does not account for the developer tools installation.

Very simple C# CSV reader

My solution handles quotes, overriding field and string separators, etc. It is short and sweet.

    public static string[] CSVRowToStringArray(string r, char fieldSep = ',', char stringSep = '\"')
    {
        bool bolQuote = false;
        StringBuilder bld = new StringBuilder();
        List<string> retAry = new List<string>();

        foreach (char c in r.ToCharArray())
            if ((c == fieldSep && !bolQuote))
            {
                retAry.Add(bld.ToString());
                bld.Clear();
            }
            else
                if (c == stringSep)
                    bolQuote = !bolQuote;
                else
                    bld.Append(c);

        return retAry.ToArray();
    }

Linking a qtDesigner .ui file to python/pyqt?

(November 2020) This worked for me (UBUNTU 20.04):

pyuic5 /home/someuser/Documents/untitled.ui > /home/someuser/Documents/untitled.py

Change / Add syntax highlighting for a language in Sublime 2/3

Use the PackageResourceViewer plugin installed via Package Control (as mentioned by MattDMo). This allows you to override the compressed resources by simply opening it in Sublime Text and saving the file. It automatically saves only the edited resources to %APPDATA%/Roaming/Sublime Text 3/Packages/ or ~/.config/sublime-text-3/Packages/.

Specific to the op, once the plugin is installed, execute the PackageResourceViewer: Open Resource command. Then select JavaScript followed by JavaScript.tmLanguage. This will open an xml file in the editor. You can edit any of the language definitions and save the file. This will write an override copy of the JavaScript.tmLanguage file in the user directory.

The same method can be used to edit the language definition of any language in the system.

When using Trusted_Connection=true and SQL Server authentication, will this affect performance?

Not 100% sure what you mean:

Trusted_Connection=True;

IS using Windows credentials and is 100% equivalent to:

Integrated Security=SSPI;

Integrated Security=true;

If you don't want to use integrated security / trusted connection, you need to specify user id and password explicitly in the connection string (and leave out any reference to Trusted_Connection or Integrated Security)

server=yourservername;database=yourdatabase;user id=YourUser;pwd=TopSecret

Only in this case, the SQL Server authentication mode is used.

If any of these two settings is present (Trusted_Connection=true or Integrated Security=true/SSPI), then the Windows credentials of the current user are used to authenticate against SQL Server and any user iD= setting will be ignored and not used.

For reference, see the Connection Strings site for SQL Server 2005 with lots of samples and explanations.

Using Windows Authentication is the preferred and recommended way of doing things, but it might incur a slight delay since SQL Server would have to authenticate your credentials against Active Directory (typically). I have no idea how much that slight delay might be, and I haven't found any references for that.

Summing up:

If you specify either Trusted_Connection=True; or Integrated Security=SSPI; or Integrated Security=true; in your connection string

==> THEN (and only then) you have Windows Authentication happening. Any user id= setting in the connection string will be ignored.

If you DO NOT specify either of those settings,

==> then you DO NOT have Windows Authentication happening (SQL Authentication mode will be used)

Programs & Examples On #Sortables

jQuery: Wait/Delay 1 second without executing code

C++ getters/setters coding style

How to create a function in a cshtml template?

How to write URLs in Latex?

merge two object arrays with Angular 2 and TypeScript?

Request header field Access-Control-Allow-Headers is not allowed by Access-Control-Allow-Headers

Definition of "downstream" and "upstream"

Remove final character from string

Rails: How can I rename a database column in a Ruby on Rails migration?

Reactive forms - disabled attribute

Difference between Return and Break statements

How to change date format using jQuery?

PHP: Call to undefined function: simplexml_load_string()

Mapping list in Yaml to list of objects in Spring Boot

How to parse an RSS feed using JavaScript?

Detect whether there is an Internet connection available on Android

What's the best way to join on the same table twice?

Pass command parameter to method in ViewModel in WPF?

Append an object to a list in R in amortized constant time, O(1)?

Postgres DB Size Command

How to update two tables in one statement in SQL Server 2005?

Select values from XML field in SQL Server 2008

How to remove text from a string?

Project with path ':mypath' could not be found in root project 'myproject'

Search a string in a file and delete it from this file by Shell Script

Angular 2: import external js file into component

How to count duplicate rows in pandas dataframe?

Couldn't process file resx due to its being in the Internet or Restricted zone or having the mark of the web on the file

Asp Net Web API 2.1 get client IP address

Uncaught TypeError: Cannot read property 'ownerDocument' of undefined

How to use Bootstrap in an Angular project?

Accessing AppDelegate from framework?

SQL-Server: Is there a SQL script that I can use to determine the progress of a SQL Server backup or restore process?

Run an Ansible task only when the variable contains a specific string

Windows equivalent to UNIX pwd

SELECT inside a COUNT

Ternary operation in CoffeeScript

Draw horizontal rule in React Native

How can I select rows with most recent timestamp for each key value?

How do I mock an autowired @Value field in Spring with Mockito?

Align labels in form next to input

Jackson JSON: get node name from json-tree

View stored procedure/function definition in MySQL

How do I put text on ProgressBar?

How can I do width = 100% - 100px in CSS?

How to add a button programmatically in VBA next to some sheet cell data?

Can I hide/show asp:Menu items based on role?

How to bind inverse boolean properties in WPF?

How to validate date with format "mm/dd/yyyy" in JavaScript?

How to read a file byte by byte in Python and how to print a bytelist as a binary?

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'MyController':

Maximum size for a SQL Server Query? IN clause? Is there a Better Approach

How do I create a circle or square with just CSS - with a hollow center?

PostgreSQL function for last inserted ID

Psuedo Code

Eclipse gives “Java was started but returned exit code 13”

What is the easiest/best/most correct way to iterate through the characters of a string in Java?

Using R to list all files with a specified extension

How to convert JSON object to an Typescript array?

implement time delay in c

How do you overcome the svn 'out of date' error?

Bootstrap: how do I change the width of the container?

Giving UIView rounded corners

Swift

Supplemental Answer

See also

How to convert HTML file to word?

How do I install the yaml package for Python?

Print very long string completely in pandas dataframe

SecurityException: Permission denied (missing INTERNET permission?)

Find methods calls in Eclipse project

How can I do a line break (line continuation) in Python?

How to generate and validate a software license key?

Trigger event when user scroll to specific element - with jQuery

Get data from JSON file with PHP

How are POST and GET variables handled in Python?

C# Select elements in list as List of string

How to remove carriage returns and new lines in Postgresql?

How to link C++ program with Boost using CMake