You can retrieve the security context and then use that:

    import org.springframework.security.core.Authentication;
    import org.springframework.security.core.GrantedAuthority;
    import org.springframework.security.core.context.SecurityContext;
    import org.springframework.security.core.context.SecurityContextHolder;

    protected boolean hasRole(String role) {
        // get security context from thread local
        SecurityContext context = SecurityContextHolder.getContext();
        if (context == null)
            return false;

        Authentication authentication = context.getAuthentication();
        if (authentication == null)
            return false;

        for (GrantedAuthority auth : authentication.getAuthorities()) {
            if (role.equals(auth.getAuthority()))
                return true;
        }

        return false;
    }

using fn_my_permissions

EXECUTE AS USER = 'userName';
SELECT * FROM fn_my_permissions(NULL, 'DATABASE') 

Since nobody so far felt fit to point out why what you're trying doesn't work:

1. NA == NA doesn't return TRUE, it returns NA (since comparing to undefined values should yield an undefined result).
2. You're trying to call apply on an atomic vector. You can't use apply to loop over the elements in a column.
3. Your subscripts are off - you're trying to give two indices into a$x, which is just the column (an atomic vector).

I'd fix up 3. to get to a$x[is.na(a$x)] <- 0

@Ahmed

Below is code that specifies fields from a named range for insertion into MS Access. The nice thing about this code is that you can name your fields in Excel whatever the hell you want (If you use * then the fields have to match exactly between Excel and Access) as you can see I have named an Excel column "Haha" even though the Access column is called "dte".

Sub test()
    dbWb = Application.ActiveWorkbook.FullName
    dsh = "[" & Application.ActiveSheet.Name & "$]" & "Data2"  'Data2 is a named range


sdbpath = "C:\Users\myname\Desktop\Database2.mdb"
sCommand = "INSERT INTO [main] ([dte], [test1], [values], [values2]) SELECT [haha],[test1],[values],[values2] FROM [Excel 8.0;HDR=YES;DATABASE=" & dbWb & "]." & dsh

Dim dbCon As New ADODB.Connection
Dim dbCommand As New ADODB.Command

dbCon.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & sdbpath & "; Jet OLEDB:Database Password=;"
dbCommand.ActiveConnection = dbCon

dbCommand.CommandText = sCommand
dbCommand.Execute

dbCon.Close


End Sub

Using awk.

i starts at 0, i++ will increment the value of i, but return the original value that i held before being incremented.

awk '{print i++ "," $0}' file

I figured this wouldn't be UTF, but I just found a pretty simple solution that seems to work...

Get-Content path/to/file.ext | out-file -encoding ASCII targetFile.ext

For me this results in a utf-8 without bom file regardless of the source format.

Use example with from the post of Szilágyi Donát.

I use two querys, one to know what roles I have, excluding connect grant:

SELECT * FROM USER_ROLE_PRIVS WHERE GRANTED_ROLE != 'CONNECT'; -- Roles of the actual Oracle Schema

Know I like to find what privileges/roles my schema/user have; examples of my roles ROLE_VIEW_PAYMENTS & ROLE_OPS_CUSTOMERS. But to find the tables/objecst of an specific role I used:

SELECT * FROM ALL_TAB_PRIVS WHERE GRANTEE='ROLE_OPS_CUSTOMERS'; -- Objects granted at role.

The owner schema for this example could be PRD_CUSTOMERS_OWNER (or the role/schema inself).

Regards.

Available Zoom Levels

Zoom level 0 is the most zoomed out zoom level available and each integer step in zoom level halves the X and Y extents of the view and doubles the linear resolution.

Google Maps was built on a 256x256 pixel tile system where zoom level 0 was a 256x256 pixel image of the whole earth. A 256x256 tile for zoom level 1 enlarges a 128x128 pixel region from zoom level 0.

As correctly stated by bkaid, the available zoom range depends on where you are looking and the kind of map you are using:

• Road maps - seem to go up to zoom level 22 everywhere
• Hybrid and satellite maps - the max available zoom levels depend on location. Here are some examples:
• Remote regions of Antarctica: 13
• Gobi Desert: 17
• Much of the U.S. and Europe: 21
• "Deep zoom" locations: 22-23 (see bkaid's link)

Note that these values are for the Google Static Maps API which seems to give one more zoom level than the Javascript API. It appears that the extra zoom level available for Static Maps is just an upsampled version of the max-resolution image from the Javascript API.

Map Scale at Various Zoom Levels

Google Maps uses a Mercator projection so the scale varies substantially with latitude. A formula for calculating the correct scale based on latitude is:

meters_per_pixel = 156543.03392 * Math.cos(latLng.lat() * Math.PI / 180) / Math.pow(2, zoom)

Formula is from Chris Broadfoot's comment.

What you're looking for are the scales for each zoom level. Use these:

20 : 1128.497220
19 : 2256.994440
18 : 4513.988880
17 : 9027.977761
16 : 18055.955520
15 : 36111.911040
14 : 72223.822090
13 : 144447.644200
12 : 288895.288400
11 : 577790.576700
10 : 1155581.153000
9  : 2311162.307000
8  : 4622324.614000
7  : 9244649.227000
6  : 18489298.450000
5  : 36978596.910000
4  : 73957193.820000
3  : 147914387.600000
2  : 295828775.300000
1  : 591657550.500000

CREATE TYPE dumyTable
AS TABLE
(
  RateCodeId int,
  RateLowerRange int,
  RateHigherRange int,
  RateRangeValue int
);
GO
CREATE PROCEDURE spInsertRateRanges
  @dt AS dumyTable READONLY
AS
BEGIN
  SET NOCOUNT ON;

  INSERT  tblRateCodeRange(RateCodeId,RateLowerRange,RateHigherRange,RateRangeValue) 
  SELECT * 
  FROM @dt 
END

First, as for your Athlete class, you can remove your Getter and Setter methods since you have declared your instance variables with an access modifier of public. You can access the variables via <ClassName>.<variableName>.

However, if you really want to use that Getter and Setter, change the public modifier to private instead.

Second, for the constructor, you're trying to do a simple technique called shadowing. Shadowing is when you have a method having a parameter with the same name as the declared variable. This is an example of shadowing:
----------Shadowing sample----------
You have the following class:

public String name;

public Person(String name){
    this.name = name; // This is Shadowing
}

In your main method for example, you instantiate the Person class as follow:
Person person = new Person("theolc");

Variable name will be equal to "theolc".
----------End of shadowing----------

Let's go back to your question, if you just want to print the first element with your current code, you may remove the Getter and Setter. Remove your parameters on your constructor.

public class Athlete {

public String[] name = {"Art", "Dan", "Jen"};
public String[] country = {"Canada", "Germany", "USA"};

public Athlete() {

}

In your main method, you could do this.

public static void main(String[] args) {
       Athlete art = new Athlete();   

       System.out.println(art.name[0]);
       System.out.println(art.country[0]);
    }
}

Board.setPreferredSize(new Dimension(x, y));
.
.
//Main.add(Board, BorderLayout.CENTER);
Main.add(Board, BorderLayout.CENTER);
Main.setLocations(x, y);
Main.pack();
Main.setVisible(true);

Asynchronous version:

private async Task DoAsync()
{
    await Task.Run(async () =>
    {
        //Do something awaitable here
    });
}

The problem I was having, which I think is similar to this, is that master was too far ahead of my branch point for the history to be useful. (Navigating to the branch point would take too long.)

After some trial and error, this gave me roughly what I wanted:

git log --graph --decorate --oneline --all ^master^!

There are a number of limitations, notably:

• Constrained to a single CPU (in 2012, this limitation has been changed to "The lesser of one socket or four cores", so multi-threading is possible)
• 1GB RAM (Same in 2008/2012)
• 4GB database size (raised to 10GB in SQL 2008 R2 and SQL 2012) per database

http://www.dotnetspider.com/tutorials/SqlServer-Tutorial-158.aspx http://www.microsoft.com/sqlserver/2008/en/us/editions.aspx

With regards to the number of databases, this MSDN article says there's no limit:

The 4 GB database size limit applies only to data files and not to log files. However, there are no limits to the number of databases that can be attached to the server.

However, as mentioned in the comments and above, the database size limit was raised to 10GB in 2008 R2 and 2012. Also, this 10GB limit only applies to relational data, and Filestream data does not count towards this limit (http://msdn.microsoft.com/en-us/library/bb895334.aspx).

hr {_x000D_
    display: block;_x000D_
    height: 1px;_x000D_
    border: 0;_x000D_
    border-top: 1px solid #ccc;_x000D_
    margin: 1em 0;_x000D_
    padding: 0;_x000D_
}

<div>Hello</div>_x000D_
<hr/>_x000D_
<div>World</div>

Here is how html5boilerplate does it:

hr {
    display: block;
    height: 1px;
    border: 0;
    border-top: 1px solid #ccc;
    margin: 1em 0;
    padding: 0;
}

This is really strange... Once set, the default Charset is cached and it isn't changed while the class is in memory. Setting the "file.encoding" property with System.setProperty("file.encoding", "Latin-1"); does nothing. Every time Charset.defaultCharset() is called it returns the cached charset.

Here are my results:

Default Charset=ISO-8859-1
file.encoding=Latin-1
Default Charset=ISO-8859-1
Default Charset in Use=ISO8859_1

I'm using JVM 1.6 though.

(update)

Ok. I did reproduce your bug with JVM 1.5.

Looking at the source code of 1.5, the cached default charset isn't being set. I don't know if this is a bug or not but 1.6 changes this implementation and uses the cached charset:

JVM 1.5:

public static Charset defaultCharset() {
    synchronized (Charset.class) {
        if (defaultCharset == null) {
            java.security.PrivilegedAction pa =
                    new GetPropertyAction("file.encoding");
            String csn = (String) AccessController.doPrivileged(pa);
            Charset cs = lookup(csn);
            if (cs != null)
                return cs;
            return forName("UTF-8");
        }
        return defaultCharset;
    }
}

JVM 1.6:

public static Charset defaultCharset() {
    if (defaultCharset == null) {
        synchronized (Charset.class) {
            java.security.PrivilegedAction pa =
                    new GetPropertyAction("file.encoding");
            String csn = (String) AccessController.doPrivileged(pa);
            Charset cs = lookup(csn);
            if (cs != null)
                defaultCharset = cs;
            else
                defaultCharset = forName("UTF-8");
        }
    }
    return defaultCharset;
}

When you set the file encoding to file.encoding=Latin-1 the next time you call Charset.defaultCharset(), what happens is, because the cached default charset isn't set, it will try to find the appropriate charset for the name Latin-1. This name isn't found, because it's incorrect, and returns the default UTF-8.

As for why the IO classes such as OutputStreamWriter return an unexpected result,
the implementation of sun.nio.cs.StreamEncoder (witch is used by these IO classes) is different as well for JVM 1.5 and JVM 1.6. The JVM 1.6 implementation is based in the Charset.defaultCharset() method to get the default encoding, if one is not provided to IO classes. The JVM 1.5 implementation uses a different method Converters.getDefaultEncodingName(); to get the default charset. This method uses its own cache of the default charset that is set upon JVM initialization:

JVM 1.6:

public static StreamEncoder forOutputStreamWriter(OutputStream out,
        Object lock,
        String charsetName)
        throws UnsupportedEncodingException
{
    String csn = charsetName;
    if (csn == null)
        csn = Charset.defaultCharset().name();
    try {
        if (Charset.isSupported(csn))
            return new StreamEncoder(out, lock, Charset.forName(csn));
    } catch (IllegalCharsetNameException x) { }
    throw new UnsupportedEncodingException (csn);
}

JVM 1.5:

public static StreamEncoder forOutputStreamWriter(OutputStream out,
        Object lock,
        String charsetName)
        throws UnsupportedEncodingException
{
    String csn = charsetName;
    if (csn == null)
        csn = Converters.getDefaultEncodingName();
    if (!Converters.isCached(Converters.CHAR_TO_BYTE, csn)) {
        try {
            if (Charset.isSupported(csn))
                return new CharsetSE(out, lock, Charset.forName(csn));
        } catch (IllegalCharsetNameException x) { }
    }
    return new ConverterSE(out, lock, csn);
}

But I agree with the comments. You shouldn't rely on this property. It's an implementation detail.

It depends on the context.

• "undefined" means this value does not exist. typeof returns "undefined"

• "null" means this value exists with an empty value. When you use typeof to test for "null", you will see that it's an object. Other case when you serialize "null" value to backend server like asp.net mvc, the server will receive "null", but when you serialize "undefined", the server is unlikely to receive a value.

If you are on windows and using mingw, gcc uses the win32 runtime, where printf needs %I64d for a 64 bit integer. (and %I64u for an unsinged 64 bit integer)

For most other platforms you'd use %lld for printing a long long. (and %llu if it's unsigned). This is standarized in C99.

gcc doesn't come with a full C runtime, it defers to the platform it's running on - so the general case is that you need to consult the documentation for your particular platform - independent of gcc.

Assuming you're using this HTML structure:

<div id="container">
  <div id="content">
  </div>
  <div id="sidebar">
  </div>
</div>

Here's the CSS that I would use:

div#container {
    overflow: hidden;    /* makes element contain floated child elements */
}

div#content, div#sidebar {
    float: left;
    display: inline;    /* preemptively fixes IE6 dobule-margin bug */
}

I use this set all the time and it works fine for me, even in IE6.

var currentYear =  (new Date()).getFullYear();   
var twoLastDigits = currentYear%100;

var formatedTwoLastDigits = "";

if (twoLastDigits <10 ) {
    formatedTwoLastDigits = "0" + twoLastDigits;
} else {
    formatedTwoLastDigits = "" + twoLastDigits;
}

The input operator for number skips leading whitespace, so you can just read the number in a loop:

while (myfile >> a)
{
    // ...
}

You should really use the standard List class. Unless, of course, this is a homework question, or you want to know how lists are implemented by STL.

You'll find plenty of simple tutorials via google, like this one. If you want to know how linked lists work "under the hood", try searching for C list examples/tutorials rather than C++.

If .xlsx file has many sheets, -s flag can be used to get the sheet you want. For example:

xlsx2csv "my_file.xlsx" -s 2 second_sheet.csv

second_sheet.csv would contain data of 2nd sheet in my_file.xlsx.

Assuming you are dealing with a JSON-string in the input, you can parse it using the json package, see the documentation.

In the specific example you posted you would need

x = json.loads("""{
 "accountWide": true,
 "criteria": [
     {
         "description": "some description",
         "id": 7553,
         "max": 1,
         "orderIndex": 0
     }
  ]
 }""")
description = x['criteria'][0]['description']
id = x['criteria'][0]['id']
max = x['criteria'][0]['max']

To improve performance you could have a single predefined sting if you know the max length like:

String template = "####################################";

And then simply perform a substring once you know the length.

Or as a single command:

git push -u origin master:my_test

Pushes the commits from your local master branch to a (possibly new) remote branch my_test and sets up master to track origin/my_test.

This work for me, after that I could convert put my picture in a bytea field in my database.

using (MemoryStream s = new MemoryStream(DirEntry.Properties["thumbnailphoto"].Value as byte[]))
{
    return s.ToArray();
}

Besides maintainability, the first way eliminates possibility of accident global variables creation:

(function () {
var variable1 = "Hello, World!" // Semicolon is missed out accidentally
var variable2 = "Testing..."; // Still a local variable
var variable3 = 42;
}());

While the second way is less forgiving:

(function () {
var variable1 = "Hello, World!" // Comma is missed out accidentally
    variable2 = "Testing...", // Becomes a global variable
    variable3 = 42; // A global variable as well
}());

Type this .... SET foreign_key_checks = 0;
delete your table then type SET foreign_key_checks = 1;

MySQL – Temporarily disable Foreign Key Checks or Constraints

You were setting BCC but then overwriting the variable with the FROM

$to = "[email protected]";
     $subject .= "".$emailSubject."";
 $headers .= "Bcc: ".$emailList."\r\n";
 $headers .= "From: [email protected]\r\n" .
     "X-Mailer: php";
     $headers .= "MIME-Version: 1.0\r\n";
     $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
 $message = '<html><body>';
 $message .= 'THE MESSAGE FROM THE FORM';

     if (mail($to, $subject, $message, $headers)) {
     $sent = "Your email was sent!";
     } else {
      $sent = ("Error sending email.");
     }

The General Syntax of operator overloading in C++

You cannot change the meaning of operators for built-in types in C++, operators can only be overloaded for user-defined types¹. That is, at least one of the operands has to be of a user-defined type. As with other overloaded functions, operators can be overloaded for a certain set of parameters only once.

Not all operators can be overloaded in C++. Among the operators that cannot be overloaded are: . :: sizeof typeid .* and the only ternary operator in C++, ?:

Among the operators that can be overloaded in C++ are these:

• arithmetic operators: + - * / % and += -= *= /= %= (all binary infix); + - (unary prefix); ++ -- (unary prefix and postfix)
• bit manipulation: & | ^ << >> and &= |= ^= <<= >>= (all binary infix); ~ (unary prefix)
• boolean algebra: == != < > <= >= || && (all binary infix); ! (unary prefix)
• memory management: new new[] delete delete[]
• implicit conversion operators
• miscellany: = [] -> ->* , (all binary infix); * & (all unary prefix) () (function call, n-ary infix)

However, the fact that you can overload all of these does not mean you should do so. See the basic rules of operator overloading.

In C++, operators are overloaded in the form of functions with special names. As with other functions, overloaded operators can generally be implemented either as a member function of their left operand's type or as non-member functions. Whether you are free to choose or bound to use either one depends on several criteria.² A unary operator @³, applied to an object x, is invoked either as operator@(x) or as x.operator@(). A binary infix operator @, applied to the objects x and y, is called either as operator@(x,y) or as x.operator@(y).⁴

Operators that are implemented as non-member functions are sometimes friend of their operand’s type.

¹ _{The term “user-defined” might be slightly misleading. C++ makes the distinction between built-in types and user-defined types. To the former belong for example int, char, and double; to the latter belong all struct, class, union, and enum types, including those from the standard library, even though they are not, as such, defined by users.}

² _{This is covered in a later part of this FAQ.}

³ _{The @ is not a valid operator in C++ which is why I use it as a placeholder.}

⁴ _{The only ternary operator in C++ cannot be overloaded and the only n-ary operator must always be implemented as a member function.}

Continue to The Three Basic Rules of Operator Overloading in C++.

Try this Code

<select name="forma" onchange="location = this.options[this.selectedIndex].value;">
 <option value="Home.php">Home</option>
 <option value="Contact.php">Contact</option>
 <option value="Sitemap.php">Sitemap</option>
</select>

Working solution to set CultureInfo for all threads and windows.

1. Open App.xaml file and add a new "Startup" attribute to assign startup event handler for the app:

<Application ........
             Startup="Application_Startup"
>

2. Open App.xaml.cs file and add this code to created startup handler (Application_Startup in this case). The class App will look like this:

    public partial class App : Application
    {
        private void Application_Startup(object sender, StartupEventArgs e)
        {
            CultureInfo cultureInfo = CultureInfo.GetCultureInfo("en-US");
            System.Globalization.CultureInfo.DefaultThreadCurrentCulture = cultureInfo;
            System.Globalization.CultureInfo.DefaultThreadCurrentUICulture = cultureInfo;
            Thread.CurrentThread.CurrentCulture = cultureInfo;
        }
    }

You can add the following code:

this.ActiveControl = null;  //this = form

Use:

int count = 0;
String newString = n + "";
char [] stringArray = newString.toCharArray();
int [] intArray = new int[stringArray.length];
for (char i : stringArray) {
  int m = Character.getNumericValue(i);
  intArray[count] = m;
  count += 1;
}
return intArray;

You'll have to put this into a method.

All of these answers miss an important distinction. update() is used to (re)attach your object graph to a Session. The objects you pass it are the ones that are made managed.

merge() is actually not a (re)attachment API. Notice merge() has a return value? That's because it returns you the managed graph, which may not be the graph you passed it. merge() is a JPA API and its behavior is governed by the JPA spec. If the object you pass in to merge() is already managed (already associated with the Session) then that's the graph Hibernate works with; the object passed in is the same object returned from merge(). If, however, the object you pass into merge() is detached, Hibernate creates a new object graph that is managed and it copies the state from your detached graph onto the new managed graph. Again, this is all dictated and governed by the JPA spec.

In terms of a generic strategy for "make sure this entity is managed, or make it managed", it kind of depends on if you want to account for not-yet-inserted data as well. Assuming you do, use something like

if ( session.contains( myEntity ) ) {
    // nothing to do... myEntity is already associated with the session
}
else {
    session.saveOrUpdate( myEntity );
}

Notice I used saveOrUpdate() rather than update(). If you do not want not-yet-inserted data handled here, use update() instead...

use & in place of &

change to

<string name="magazine">Newspaper &amp; Magazines</string>

You can set theme of your button to this

<style name="AppTheme.ButtonBlue" parent="Widget.AppCompat.Button.Colored">
 <item name="colorButtonNormal">@color/HEXColor</item>
 <item name="android:textColor">@color/HEXColor</item>
</style>

If you know how tall your text is going to be you can use a combination of top:50% and margin-top:-x px where x is half the height of your text.

Working example: http://jsfiddle.net/Qy4yy/

The way to fix this sort of problem is to redefine the relevant list environment. The enumitem package is my favourite way to do this sort of thing; it has many options and parameters that can be varied, either for all lists or for each list individually.

Here's how to do (something like) what it is I think you want:

\usepackage{enumitem}
\setlist{nolistsep}

or

\usepackage{enumitem}
\setlist{nosep}

id is the method you want to use: to convert it to hex:

hex(id(variable_here))

For instance:

x = 4
print hex(id(x))

Gave me:

0x9cf10c

Which is what you want, right?

(Fun fact, binding two variables to the same int may result in the same memory address being used.)
Try:

x = 4
y = 4
w = 9999
v = 9999
a = 12345678
b = 12345678
print hex(id(x))
print hex(id(y))
print hex(id(w))
print hex(id(v))
print hex(id(a))
print hex(id(b))

This gave me identical pairs, even for the large integers.

collection : A collection(with small 'c') represents a group of objects/elements.

Collection : The root interface of Java Collections Framework.

Collections : A utility class that is a member of the Java Collections Framework.

I know this is old, but I figured I'd give my input. I had to do this for a project at work and this was my solution.

I have a Building object that includes the Timezone using the TimeZone class and wanted to create zoneId and offset fields in a new class.

So what I did was create:

private String timeZoneId;
private String timeZoneOffset;

Then in the constructor I passed in the Building object and set these fields like so:

this.timeZoneId = building.getTimeZone().getID();
this.timeZoneOffset = building.getTimeZone().toZoneId().getId();

So timeZoneId might equal something like "EST" And timeZoneOffset might equal something like "-05:00"

I would like to not that you might not

The above answer was helpful for me, but it might be useful (or best practice) to add the name on submit, as I wound up doing. Hopefully this will be helpful to someone. CodePen Sample

    <form id="formAddName">
      <fieldset>
        <legend>Add Name </legend>
            <label for="firstName">First Name</label>
            <input type="text" id="firstName" name="firstName" />

        <button>Add</button>
      </fieldset>
    </form>

      <ol id="demo"></ol>

<script>
    var list = document.getElementById('demo');
    var entry = document.getElementById('formAddName');
    entry.onsubmit = function(evt) {
    evt.preventDefault();
    var firstName = document.getElementById('firstName').value;
    var entry = document.createElement('li');
    entry.appendChild(document.createTextNode(firstName));
    list.appendChild(entry);
  }
</script>

Minor variation to user1850980's answer (for the question "How to initialize a list of empty dictionaries") using list constructor:

dictlistGOOD = list( {} for i in xrange(listsize) )

I found out to my chagrin, this does NOT work:

dictlistFAIL = [{}] * listsize  # FAIL!

as it creates a list of references to the same empty dictionary, so that if you update one dictionary in the list, all the other references get updated too.

Try these updates to see the difference:

dictlistGOOD[0]["key"] = "value"
dictlistFAIL[0]["key"] = "value"

(I was actually looking for user1850980's answer to the question asked, so his/her answer was helpful.)

I'm not certain on what it is you're trying to achieve. But maybe you can use this:

$var =~ s/^start/foo/;
$var =~ s/end$/bar/;

I.e. just leave the middle alone and replace the start and end.

According to the documentation:

max(iterable[, key])
max(arg1, arg2, *args[, key])
Return the largest item in an iterable or the largest of two or more arguments.

If one positional argument is provided, iterable must be a non-empty iterable (such as a non-empty string, tuple or list). The largest item in the iterable is returned. If two or more positional arguments are provided, the largest of the positional arguments is returned.

The optional key argument specifies a one-argument ordering function like that used for list.sort(). The key argument, if supplied, must be in keyword form (for example, max(a,b,c,key=func)).

What this is saying is that in your case, you are providing a list, in this case players. Then the max function will iterate over all the items in the list and compare them to each other to get a "maximum".

As you can imagine, with a complex object like a player determining its value for comparison is tricky, so you are given the key argument to determine how the max function will decide the value of each player. In this case, you are using a lambda function to say "for each p in players get p.totalscore and use that as his value for comparison".

To check the emptiness of a queryset:

if orgs.exists():
    # Do something

or you can check for a the first item in a queryset, if it doesn't exist it will return None:

if orgs.first():
    # Do something

Sadly, many JSON C++ libraries have APIs that are non trivial to use, while JSON was intended to be easy to use.

So I tried jsoncpp from the gSOAP tools on the JSON doc shown in one of the answers above and this is the code generated with jsoncpp to construct a JSON object in C++ which is then written in JSON format to std::cout:

value x(ctx);
x["appDesc"]["description"] = "SomeDescription";
x["appDesc"]["message"] = "SomeMessage";
x["appName"]["description"] = "Home";
x["appName"]["message"] = "Welcome";
x["appName"]["imp"][0] = "awesome";
x["appName"]["imp"][1] = "best";
x["appName"]["imp"][2] = "good";
std::cout << x << std::endl;

and this is the code generated by jsoncpp to parse JSON from std::cin and extract its values (replace USE_VAL as needed):

value x(ctx);
std::cin >> x;
if (x.soap->error)
  exit(EXIT_FAILURE); // error parsing JSON
#define USE_VAL(path, val) std::cout << path << " = " << val << std::endl
if (x.has("appDesc"))
{
  if (x["appDesc"].has("description"))
    USE_VAL("$.appDesc.description", x["appDesc"]["description"]);
  if (x["appDesc"].has("message"))
    USE_VAL("$.appDesc.message", x["appDesc"]["message"]);
}
if (x.has("appName"))
{
  if (x["appName"].has("description"))
    USE_VAL("$.appName.description", x["appName"]["description"]);
  if (x["appName"].has("message"))
    USE_VAL("$.appName.message", x["appName"]["message"]);
  if (x["appName"].has("imp"))
  {
    for (int i2 = 0; i2 < x["appName"]["imp"].size(); i2++)
      USE_VAL("$.appName.imp[]", x["appName"]["imp"][i2]);
  }
}

This code uses the JSON C++ API of gSOAP 2.8.28. I don't expect people to change libraries, but I think this comparison helps to put JSON C++ libraries in perspective.

What I can do to fix this (other than installing a real SSL certificate).

You can't.

On an https webpage you can only make AJAX request to https webpage (With a certificate trusted by the browser, if you use a self-signed one, it will not work for your visitors)

There isn't really a "private method" in Objective-C, if the runtime can work out which implementation to use it will do it. But that's not to say that there aren't methods which aren't part of the documented interface. For those methods I think that a category is fine. Rather than putting the @interface at the top of the .m file like your point 2, I'd put it into its own .h file. A convention I follow (and have seen elsewhere, I think it's an Apple convention as Xcode now gives automatic support for it) is to name such a file after its class and category with a + separating them, so @interface GLObject (PrivateMethods) can be found in GLObject+PrivateMethods.h. The reason for providing the header file is so that you can import it in your unit test classes :-).

By the way, as far as implementing/defining methods near the end of the .m file is concerned, you can do that with a category by implementing the category at the bottom of the .m file:

@implementation GLObject(PrivateMethods)
- (void)secretFeature;
@end

or with a class extension (the thing you call an "empty category"), just define those methods last. Objective-C methods can be defined and used in any order in the implementation, so there's nothing to stop you putting the "private" methods at the end of the file.

Even with class extensions I will often create a separate header (GLObject+Extension.h) so that I can use those methods if required, mimicking "friend" or "protected" visibility.

Since this answer was originally written, the clang compiler has started doing two passes for Objective-C methods. This means you can avoid declaring your "private" methods completely, and whether they're above or below the calling site they'll be found by the compiler.

I solved my issue using the following command :

pip install opencv-python

I am using rails 6 and Model.all(:order 'columnName DESC') is not working. I have found the correct answer in OrderInRails

This is very simple.

@variable=Model.order('columnName DESC')

I know it's an old thread, but I think the current solution (using hardcoded string identifier for given view controller) is very prone to errors.

I've created a build time script (which you can access here), which will create a compiler safe way for accessing and instantiating view controllers from all storyboard within the given project.

For example, view controller named vc1 in Main.storyboard will be instantiated like so:

let vc: UIViewController = R.storyboard.Main.vc1^  // where the '^' character initialize the controller

You probably mean Notification.Builder.setLargeIcon(Bitmap), right? :)

Bitmap largeIcon = BitmapFactory.decodeResource(getResources(), R.drawable.large_icon);
notBuilder.setLargeIcon(largeIcon);

This is a great method of converting resource images into Android Bitmaps.

If you add text-align: center to the declarations for .columns-container then they align centrally:

.columns-container {
    display: table-cell;
    height: 100%;
    width:600px;
    text-align: center;
}

/*************************_x000D_
 * Sticky footer hack_x000D_
 * Source: http://pixelsvsbytes.com/blog/2011/09/sticky-css-footers-the-flexible-way/_x000D_
 ************************/_x000D_
_x000D_
/* Stretching all container's parents to full height */_x000D_
_x000D_
html,_x000D_
body {_x000D_
  height: 100%;_x000D_
  margin: 0;_x000D_
  padding: 0;_x000D_
}_x000D_
/* Setting the container to be a table with maximum width and height */_x000D_
_x000D_
#container {_x000D_
  display: table;_x000D_
  height: 100%;_x000D_
  width: 100%;_x000D_
}_x000D_
/* All sections (container's children) should be table rows with minimal height */_x000D_
_x000D_
.section {_x000D_
  display: table-row;_x000D_
  height: 1px;_x000D_
}_x000D_
/* The last-but-one section should be stretched to automatic height */_x000D_
_x000D_
.section.expand {_x000D_
  height: auto;_x000D_
}_x000D_
/*************************_x000D_
 * Full height columns_x000D_
 ************************/_x000D_
_x000D_
/* We need one extra container, setting it to full width */_x000D_
_x000D_
.columns-container {_x000D_
display: table-cell;_x000D_
height: 100%;_x000D_
width:600px;_x000D_
text-align: center;_x000D_
}_x000D_
/* Creating columns */_x000D_
_x000D_
.column {_x000D_
  /* The float:left won't work for Chrome for some reason, so inline-block */_x000D_
  display: inline-block;_x000D_
  /* for this to work, the .column elements should have NO SPACE BETWEEN THEM */_x000D_
  vertical-align: top;_x000D_
  height: 100%;_x000D_
  width: 100px;_x000D_
}_x000D_
/****************************************************************_x000D_
 * Just some coloring so that we're able to see height of columns_x000D_
 ****************************************************************/_x000D_
_x000D_
header {_x000D_
  background-color: yellow;_x000D_
}_x000D_
#a {_x000D_
  background-color: pink;_x000D_
}_x000D_
#b {_x000D_
  background-color: lightgreen;_x000D_
}_x000D_
#c {_x000D_
  background-color: lightblue;_x000D_
}_x000D_
footer {_x000D_
  background-color: purple;_x000D_
}

<div id="container">_x000D_
  <header class="section">_x000D_
    foo_x000D_
  </header>_x000D_
_x000D_
  <div class="section expand">_x000D_
    <div class="columns-container">_x000D_
      <div class="column" id="a">_x000D_
        <p>Contents A</p>_x000D_
      </div>_x000D_
      <div class="column" id="b">_x000D_
        <p>Contents B</p>_x000D_
      </div>_x000D_
      <div class="column" id="c">_x000D_
        <p>Contents C</p>_x000D_
      </div>_x000D_
    </div>_x000D_
  </div>_x000D_
_x000D_
  <footer class="section">_x000D_
    bar_x000D_
  </footer>_x000D_
</div>

This does, though, require that you reset the .column elements to text-align: left (assuming you want them left-aligned, obviously (JS Fiddle demo).

I know this is a bit late, but for people struggling with this, you can use the following functions:

• Turn any number positive

  let x =  54;
  let y = -54;
  let resultx =  Math.abs(x); //  54
  let resulty =  Math.abs(y); //  54
  

• Turn any number negative

  let x =  54;
  let y = -54;
  let resultx = -Math.abs(x); // -54
  let resulty = -Math.abs(y); // -54
  

• Invert any number

  let x =  54;
  let y = -54;
  let resultx = -(x);         // -54
  let resulty = -(y);         //  54
  

This is the right answer

preg_match("/^[0-9]+$/", $yourstr);

This function return TRUE(1) if it matches or FALSE(0) if it doesn't

Quick Explanation :

'^' : means that it should begin with the following ( in our case is a range of digital numbers [0-9] ) ( to avoid cases like ("abdjdf125") )

'+' : means there should be at least one digit

'$' : means after our pattern the string should end ( to avoid cases like ("125abdjdf") )

I don't know why is it working fine at yours machines, but I had to spend a day in order to get it is working.

The server works with Intellij Idea U via url "jdbc:h2:tcp://localhost:9092/~/default".

"localhost:8082" in the browser alse works fine.

I added this into the mvc-dispatcher-servlet.xml

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" depends-on="h2Server">
    <property name="driverClassName" value="org.h2.Driver"/>
    <property name="url" value="jdbc:h2:tcp://localhost:9092/~/default"/>
    <property name="username" value="sa"/>
    <property name="password" value=""/>
</bean>

<bean id="h2Server" class="org.h2.tools.Server" factory-method="createTcpServer" init-method="start" destroy-method="stop" depends-on="h2WebServer">
    <constructor-arg>
        <array>
            <value>-tcp</value>
            <value>-tcpAllowOthers</value>
            <value>-tcpPort</value>
            <value>9092</value>
        </array>
    </constructor-arg>
</bean>

<bean id="h2WebServer" class="org.h2.tools.Server" factory-method="createWebServer" init-method="start" destroy-method="stop">
    <constructor-arg>
        <array>
            <value>-web</value>
            <value>-webAllowOthers</value>
            <value>-webPort</value>
            <value>8082</value>
        </array>
    </constructor-arg>
</bean>

This can also happen if the disk is full at your logpath path (e.g. if you have a dedicated /log/ directory/drive and it is full).

This had me panicking for a good 15 minutes because it also prevents you from reading the mongod.log when starting the process, so difficult to troubleshoot.

DO it like

$query = mysql_query("SELECT * FROM table WHERE the_number LIKE '$yourPHPVAR%'");

Do not forget the % at the end

Although all other answers are technically correct, I would recommend you adding the custom path to the beginning of your PATH, not at the end. That way it would be the first place to look for instead of the last:

Add to bottom of ~/.bash_profile:

export PATH="/cygdrive/C/Program Files/Java/jdk1.6.0_23/bin/":$PATH

That way if you have more than one java or javac it will use the one you provided first.

Another approach is to use ls when reading the file list within a directory so as to give you what you want, i.e. "just the file name/s". As opposed to reading the full file path and then extracting the "file name" component in the body of the for loop.

Example below that follows your original:

for filename in $(ls /home/user/)
do
  echo $filename
done;

If you are running the script in the same directory as the files, then it simply becomes:

for filename in $(ls)
do
  echo $filename
done;

After doing much R&D on this issue I got the Solution,

In my case I am using Service that will run every 2 second and with the runonUIThread, I was wondering the problem was there but not at all. The next issue that I found is that I am using large Image in may App and thats the problem.

I removed the Images and set new Images.

Conclusion :- Look into your code is there any raw file that you are using is of big size.

I met the issue before when using a fullscreen dialogFragment: there is always a padding while having set fullscreen. try this code in dialogFragment's onActivityCreated() method:

public void onActivityCreated(Bundle savedInstanceState)
{   
    super.onActivityCreated(savedInstanceState);
    Window window = getDialog().getWindow();
    LayoutParams attributes = window.getAttributes();
    //must setBackgroundDrawable(TRANSPARENT) in onActivityCreated()
    window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
    if (needFullScreen)
    {
        window.setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
    }
}

Look for the hidden .android folder in your user home folder. You might rename or delete this folder, recreate your AVD, and restart the emulator. It could be there is a .ini file in that folder that has that setting munged.

Use this for your code

<ul class="nav nav-tabs" style="margin-top:10em;">
  <li class="active" data-toggle="tab"><a href="#">Assign</a></li>
<li data-toggle="tab"><a href="#">Two</a></li>
<li data-toggle="tab"><a href="#">Three</a></li>

Since Management Studio 2005 it seems that you can use GO with an int parameter, like:

INSERT INTO mytable DEFAULT VALUES
GO 10

The above will insert 10 rows into mytable. Generally speaking, GO will execute the related sql commands n times.

Potential answer for SQL Server

Interesting I just ran a test using LinqPad with SQL Server which should be just running Linq to SQL underneath and it generates the following SQL statement.

Records .Where(r => r.Name.Contains("lkjwer--_~[]"))

-- Region Parameters
DECLARE @p0 VarChar(1000) = '%lkjwer--~_~~~[]%'
-- EndRegion
SELECT [t0].[ID], [t0].[Name]
FROM [RECORDS] AS [t0]
WHERE [t0].[Name] LIKE @p0 ESCAPE '~'

So I haven't tested it yet but it looks like potentially the ESCAPE '~' keyword may allow for automatic escaping of a string for use within a like expression.

I don't know about JSON.NET, but it works fine with JavaScriptSerializer from System.Web.Extensions.dll (.NET 3.5 SP1):

using System.Collections.Generic;
using System.Web.Script.Serialization;
public class NameTypePair
{
    public string OBJECT_NAME { get; set; }
    public string OBJECT_TYPE { get; set; }
}
public enum PositionType { none, point }
public class Ref
{
    public int id { get; set; }
}
public class SubObject
{
    public NameTypePair attributes { get; set; }
    public Position position { get; set; }
}
public class Position
{
    public int x { get; set; }
    public int y { get; set; }
}
public class Foo
{
    public Foo() { objects = new List<SubObject>(); }
    public string displayFieldName { get; set; }
    public NameTypePair fieldAliases { get; set; }
    public PositionType positionType { get; set; }
    public Ref reference { get; set; }
    public List<SubObject> objects { get; set; }
}
static class Program
{

    const string json = @"{
  ""displayFieldName"" : ""OBJECT_NAME"", 
  ""fieldAliases"" : {
    ""OBJECT_NAME"" : ""OBJECT_NAME"", 
    ""OBJECT_TYPE"" : ""OBJECT_TYPE""
  }, 
  ""positionType"" : ""point"", 
  ""reference"" : {
    ""id"" : 1111
  }, 
  ""objects"" : [
    {
      ""attributes"" : {
        ""OBJECT_NAME"" : ""test name"", 
        ""OBJECT_TYPE"" : ""test type""
      }, 
      ""position"" : 
      {
        ""x"" : 5, 
        ""y"" : 7
      }
    }
  ]
}";


    static void Main()
    {
        JavaScriptSerializer ser = new JavaScriptSerializer();
        Foo foo = ser.Deserialize<Foo>(json);
    }


}

Edit:

Json.NET works using the same JSON and classes.

Foo foo = JsonConvert.DeserializeObject<Foo>(json);

Link: Serializing and Deserializing JSON with Json.NET

I was getting a similar permission issue and SDK Manager could not download and install new components. Error message was (I'm running Android Studio (I/O Preview) 0.2.9)

"Unable to create C:\Program Files (x86)\Android\android-studio\sdk\temp"

Although solution was infact what @william-tate's answer says, I could not run the 'SDK Manager' directly. It fails with message:

Failed to execute tools\android.bat The system cannot find the file specified.

Instead I ran the 'tools\android.bat' as Administrator, which in turn launched SDK Manager with same permissions which fixed the issue.

Hope this helps for someone who faces the issue I faced.

In MySQL, you can do: values (1,2), (3, 4);

mysql> values (1,2), (3, 4);
+---+---+
| 1 | 2 |
+---+---+
| 1 | 2 |
| 3 | 4 |
+---+---+
2 rows in set (0.004 sec)

With MySQL 8, it is also possible to give the column names:

mysql> SELECT * FROM (SELECT 1, 2, 3, 4) AS dt (a, b, c, d);
+---+---+---+---+
| a | b | c | d |
+---+---+---+---+
| 1 | 2 | 3 | 4 |
+---+---+---+---+

We can also use this with the $_GET method

$employee_id = 'EMP-1234';

header('Location: employee.php?id='.$employee_id);

In django.VERSION (2, 1, 1, 'final', 0) request handler

sock=request._stream.stream.raw._sock
#<socket.socket fd=1236, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('192.168.1.111', 8000), raddr=('192.168.1.111', 64725)>
client_ip,port=sock.getpeername()

if you call above code twice,you may got

AttributeError("'_io.BytesIO' object has no attribute 'stream'",)

AttributeError("'LimitedStream' object has no attribute 'raw'")

I have checked that the output redirection works with javaw:

javaw -cp ... mypath.MyClass ... arguments 1>log.txt 2>err.txt

It means, if the Java application prints out anything via System.out or System.err, it is written to those files, as also with using java (without w). Especially on starting java, the JRE may write starting errors (class not found) on the error output pipe. In this respect, it is essential to know about errors. I suggest to use the console redirection in any case if javaw is invoked.

In opposite if you use

start java .... 1>log.txt 2>err.txt

With the Windows console start command, the console output redirection does not work with java nor with javaw.

Explanation why it is so: I think that javaw opens an internal process in the OS (adequate using the java.lang.Process class), and transfers a known output redirection to this process. If no redirection is given on the command line, nothing is redirected and the internal started process for javaw doesn't have any console outputs. The behavior for java.lang.Process is similar. The virtual machine may use this internal feature for javaw too.

If you use 'start', the Windows console creates a new process for Windows to execute the command after start, but this mechanism does not use a given redirection for the started sub process, unfortunately.

For Mac Users :

On Mac, head -n -1 wont work. And, I was trying to find a simple solution [ without worrying about processing time ] to solve this problem only using "head" and/or "tail" commands.

I tried the following sequence of commands and was happy that I could solve it just using "tail" command [ with the options available on Mac ]. So, if you are on Mac, and want to use only "tail" to solve this problem, you can use this command :

cat file.txt | tail -r | tail -n +2 | tail -r

Explanation :

1> tail -r : simply reverses the order of lines in its input

2> tail -n +2 : this prints all the lines starting from the second line in its input

Try to use this xPath expression:

//book/title[@lang='it']/..

That should give you all book nodes in "it" lang

Here, Environment.NewLine doesn't worked.

I put a "<br/>" in a string and worked.

Ex:

ltrYourLiteral.Text = "First line.<br/>Second Line.";

Without CSS, you basically are stuck with using an image tag. Basically make an image of the text and add the underline. That basically means your page is useless to a screen reader.

With CSS, it is simple.

HTML:

<u class="dotted">I like cheese</u>

CSS:

u.dotted{
  border-bottom: 1px dashed #999;
  text-decoration: none; 
}

Running Example

Example page

<!DOCTYPE HTML>
<html>
<head>
    <style>
        u.dotted{
          border-bottom: 1px dashed #999;
          text-decoration: none; 
        }
    </style>
</head>
<body>
    <u class="dotted">I like cheese</u>
</body>
</html>

If you are struggling with the connection in the XAMPP environment I suggest uncommenting the following entry in the php.ini file.

extension = odbc

I received an error without it: Uncaught pdoexception: could not find driver

Based on what type of RFC standard encoding you want to perform or if you need to customize your encoding you might want to create your own class.

/**
 * UrlEncoder make it easy to encode your URL
 */
class UrlEncoder{
    public const STANDARD_RFC1738 = 1;
    public const STANDARD_RFC3986 = 2;
    public const STANDARD_CUSTOM_RFC3986_ISH = 3;
    // add more here

    static function encode($string, $rfc){
        switch ($rfc) {
            case self::STANDARD_RFC1738:
                return  urlencode($string);
                break;
            case self::STANDARD_RFC3986:
                return rawurlencode($string);
                break;
            case self::STANDARD_CUSTOM_RFC3986_ISH:
                // Add your custom encoding
                $entities = ['%21', '%2A', '%27', '%28', '%29', '%3B', '%3A', '%40', '%26', '%3D', '%2B', '%24', '%2C', '%2F', '%3F', '%25', '%23', '%5B', '%5D'];
                $replacements = ['!', '*', "'", "(", ")", ";", ":", "@", "&", "=", "+", "$", ",", "/", "?", "%", "#", "[", "]"];
                return str_replace($entities, $replacements, urlencode($string));
                break;
            default:
                throw new Exception("Invalid RFC encoder - See class const for reference");
                break;
        }
    }
}

Use example:

$dataString = "https://www.google.pl/search?q=PHP is **great**!&id=123&css=#kolo&[email protected])";

$dataStringUrlEncodedRFC1738 = UrlEncoder::encode($dataString, UrlEncoder::STANDARD_RFC1738);
$dataStringUrlEncodedRFC3986 = UrlEncoder::encode($dataString, UrlEncoder::STANDARD_RFC3986);
$dataStringUrlEncodedCutom = UrlEncoder::encode($dataString, UrlEncoder::STANDARD_CUSTOM_RFC3986_ISH);

Will output:

string(126) "https%3A%2F%2Fwww.google.pl%2Fsearch%3Fq%3DPHP+is+%2A%2Agreat%2A%2A%21%26id%3D123%26css%3D%23kolo%26email%3Dme%40liszka.com%29"
string(130) "https%3A%2F%2Fwww.google.pl%2Fsearch%3Fq%3DPHP%20is%20%2A%2Agreat%2A%2A%21%26id%3D123%26css%3D%23kolo%26email%3Dme%40liszka.com%29"
string(86)  "https://www.google.pl/search?q=PHP+is+**great**!&id=123&css=#kolo&[email protected])"

* Find out more about RFC standards: https://datatracker.ietf.org/doc/rfc3986/ and urlencode vs rawurlencode?

Note: if you're using(importing) org.json.simple.JSONArray, you have to use JSONArray.size() to get the data you want. But use JSONArray.length() if you're using org.json.JSONArray.

In my case, I was using S3 (uppercase) as service name when making request using postman in AWS signature Authorization method

Add below setting to .eslintrc.js / .eslintrc.json to ignore these errors:

  rules: {
    // suppress errors for missing 'import React' in files
   "react/react-in-jsx-scope": "off",
    // allow jsx syntax in js files (for next.js project)
   "react/jsx-filename-extension": [1, { "extensions": [".js", ".jsx"] }], //should add ".ts" if typescript project
  }

Why? If you're using NEXT.js then you do not require to import React at top of files, nextjs does that for you.

Here you go:

date +%Y%m%d%H%M%S

As man date says near the top, you can use the date command like this:

date [OPTION]... [+FORMAT]

That is, you can give it a format parameter, starting with a +. You can probably guess the meaning of the formatting symbols I used:

• %Y is for year
• %m is for month
• %d is for day
• ... and so on

You can find this, and other formatting symbols in man date.

This is more pythonic

my_list = [0, 1, 2, 3, 4, 5]  # some list
my_list_copy = list(my_list)  # my_list_copy and my_list does not share reference now.

NOTE: This is not safe with a list of referenced objects

You can also .pop off the last element. Be careful, this will change the value of the array, but that might be OK for you.

var a = [1,2,3];
a.pop(); // 3
a // [1,2]

You're looking for the OpenFileDialog class.

For example:

Sub SomeButton_Click(sender As Object, e As EventArgs) Handles SomeButton.Click
    Using dialog As New OpenFileDialog
        If dialog.ShowDialog() <> DialogResult.OK Then Return
        File.Copy(dialog.FileName, newPath)
    End Using
End Sub

import sys
import types

def str_to_class(field):
    try:
        identifier = getattr(sys.modules[__name__], field)
    except AttributeError:
        raise NameError("%s doesn't exist." % field)
    if isinstance(identifier, (types.ClassType, types.TypeType)):
        return identifier
    raise TypeError("%s is not a class." % field)

This accurately handles both old-style and new-style classes.

Is there any efficient algorithm other than brute force search to find the three integers?

Yep; we can solve this in O(n²) time! First, consider that your problem P can be phrased equivalently in a slightly different way that eliminates the need for a "target value":

original problem P: Given an array A of n integers and a target value S, does there exist a 3-tuple from A that sums to S?

modified problem P': Given an array A of n integers, does there exist a 3-tuple from A that sums to zero?

Notice that you can go from this version of the problem P' from P by subtracting your S/3 from each element in A, but now you don't need the target value anymore.

Clearly, if we simply test all possible 3-tuples, we'd solve the problem in O(n³) -- that's the brute-force baseline. Is it possible to do better? What if we pick the tuples in a somewhat smarter way?

First, we invest some time to sort the array, which costs us an initial penalty of O(n log n). Now we execute this algorithm:

for (i in 1..n-2) {
  j = i+1  // Start right after i.
  k = n    // Start at the end of the array.

  while (k >= j) {
    // We got a match! All done.
    if (A[i] + A[j] + A[k] == 0) return (A[i], A[j], A[k])

    // We didn't match. Let's try to get a little closer:
    //   If the sum was too big, decrement k.
    //   If the sum was too small, increment j.
    (A[i] + A[j] + A[k] > 0) ? k-- : j++
  }
  // When the while-loop finishes, j and k have passed each other and there's
  // no more useful combinations that we can try with this i.
}

This algorithm works by placing three pointers, i, j, and k at various points in the array. i starts off at the beginning and slowly works its way to the end. k points to the very last element. j points to where i has started at. We iteratively try to sum the elements at their respective indices, and each time one of the following happens:

• The sum is exactly right! We've found the answer.
• The sum was too small. Move j closer to the end to select the next biggest number.
• The sum was too big. Move k closer to the beginning to select the next smallest number.

For each i, the pointers of j and k will gradually get closer to each other. Eventually they will pass each other, and at that point we don't need to try anything else for that i, since we'd be summing the same elements, just in a different order. After that point, we try the next i and repeat.

Eventually, we'll either exhaust the useful possibilities, or we'll find the solution. You can see that this is O(n²) since we execute the outer loop O(n) times and we execute the inner loop O(n) times. It's possible to do this sub-quadratically if you get really fancy, by representing each integer as a bit vector and performing a fast Fourier transform, but that's beyond the scope of this answer.

Note: Because this is an interview question, I've cheated a little bit here: this algorithm allows the selection of the same element multiple times. That is, (-1, -1, 2) would be a valid solution, as would (0, 0, 0). It also finds only the exact answers, not the closest answer, as the title mentions. As an exercise to the reader, I'll let you figure out how to make it work with distinct elements only (but it's a very simple change) and exact answers (which is also a simple change).

I upgraded from Newtonsoft.Json 11.0.1 to 12.0.2. Opening the project file in Notepad++ I discovered both

<Reference Include="Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
      <HintPath>..\packages\Newtonsoft.Json.12.0.2\lib\net45\Newtonsoft.Json.dll</HintPath>
    </Reference>

and

<ItemGroup>
    <Reference Include="Newtonsoft.Json">
      <HintPath>..\packages\Newtonsoft.Json.11.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
    </Reference>
  </ItemGroup>

I deleted the ItemGroup wrapping the reference with the hint path to version 11.0.1.

These issues can be insanely frustrating to find. What's more, developers often follow the same steps as previous project setups. The prior setups didn't encounter the issue. For whatever reason the project file occasionally is updated incorrectly.

I desperately wish Microsoft would fix these visual studio DLL hell issues from popping up. It happens far too often and causing progress to screech to a halt until it is fixed, often by trial and error.

NVM Installation & usage on Windows

Below are the steps for NVM Installation on Windows:

NVM stands for node version manager, which will help to switch the your node versions for specific use. It also allows the user to work with multiple npm and node versions.

Install nvm setup. Use command "nvm list" to check list ofinstalled node version. Type "nvm use version number[6.9.3]" to switch versions. For more info

Here's a way, not recommended though

class Weak {
private:
    string name;

public:
    void setName(const string& name) {
        this->name = name;
    }

    string getName()const {
        return this->name;
    }

};

struct Hacker {
    string name;
};

int main(int argc, char** argv) {

    Weak w;
    w.setName("Jon");
    cout << w.getName() << endl;
    Hacker *hackit = reinterpret_cast<Hacker *>(&w);
    hackit->name = "Jack";
    cout << w.getName() << endl;

}

Adding this intent filter to one of the activities declared in app manifest fixed this for me.

<activity
    android:name=".MyActivity"
    android:screenOrientation="portrait"
    android:label="@string/app_name">

    <intent-filter>

       <action android:name="android.intent.action.VIEW" />

    </intent-filter>

</activity>

Upstream Called Harmful

There is, alas, another use of "upstream" that the other answers here are not getting at, namely to refer to the parent-child relationship of commits within a repo. Scott Chacon in the Pro Git book is particularly prone to this, and the results are unfortunate. Do not imitate this way of speaking.

For example, he says of a merge resulting a fast-forward that this happens because

the commit pointed to by the branch you merged in was directly upstream of the commit you’re on

He wants to say that commit B is the only child of the only child of ... of the only child of commit A, so to merge B into A it is sufficient to move the ref A to point to commit B. Why this direction should be called "upstream" rather than "downstream", or why the geometry of such a pure straight-line graph should be described "directly upstream", is completely unclear and probably arbitrary. (The man page for git-merge does a far better job of explaining this relationship when it says that "the current branch head is an ancestor of the named commit." That is the sort of thing Chacon should have said.)

Indeed, Chacon himself appears to use "downstream" later to mean exactly the same thing, when he speaks of rewriting all child commits of a deleted commit:

You must rewrite all the commits downstream from 6df76 to fully remove this file from your Git history

Basically he seems not to have any clear idea what he means by "upstream" and "downstream" when referring to the history of commits over time. This use is informal, then, and not to be encouraged, as it is just confusing.

It is perfectly clear that every commit (except one) has at least one parent, and that parents of parents are thus ancestors; and in the other direction, commits have children and descendants. That's accepted terminology, and describes the directionality of the graph unambiguously, so that's the way to talk when you want to describe how commits relate to one another within the graph geometry of a repo. Do not use "upstream" or "downstream" loosely in this situation.

[Additional note: I've been thinking about the relationship between the first Chacon sentence I cite above and the git-merge man page, and it occurs to me that the former may be based on a misunderstanding of the latter. The man page does go on to describe a situation where the use of "upstream" is legitimate: fast-forwarding often happens when "you are tracking an upstream repository, you have committed no local changes, and now you want to update to a newer upstream revision." So perhaps Chacon used "upstream" because he saw it here in the man page. But in the man page there is a remote repository; there is no remote repository in Chacon's cited example of fast-forwarding, just a couple of locally created branches.]

As of Python 3.5, you can use enhanced generators for async functions.

import asyncio
import datetime

Enhanced generator syntax:

@asyncio.coroutine
def display_date(loop):
    end_time = loop.time() + 5.0
    while True:
        print(datetime.datetime.now())
        if (loop.time() + 1.0) >= end_time:
            break
        yield from asyncio.sleep(1)


loop = asyncio.get_event_loop()
# Blocking call which returns when the display_date() coroutine is done
loop.run_until_complete(display_date(loop))
loop.close()

New async/await syntax:

async def display_date(loop):
    end_time = loop.time() + 5.0
    while True:
        print(datetime.datetime.now())
        if (loop.time() + 1.0) >= end_time:
            break
        await asyncio.sleep(1)


loop = asyncio.get_event_loop()
# Blocking call which returns when the display_date() coroutine is done
loop.run_until_complete(display_date(loop))
loop.close()

Let's say we have the following Spark DataFrame:

df = sqlContext.createDataFrame(
    [
        (1, "Mark", "Brown"), 
        (2, "Tom", "Anderson"), 
        (3, "Joshua", "Peterson")
    ], 
    ('id', 'firstName', 'lastName')
)

There are typically three different ways you can use to print the content of the dataframe:

Print Spark DataFrame

The most common way is to use show() function:

>>> df.show()
+---+---------+--------+
| id|firstName|lastName|
+---+---------+--------+
|  1|     Mark|   Brown|
|  2|      Tom|Anderson|
|  3|   Joshua|Peterson|
+---+---------+--------+

Print Spark DataFrame vertically

Say that you have a fairly large number of columns and your dataframe doesn't fit in the screen. You can print the rows vertically - For example, the following command will print the top two rows, vertically, without any truncation.

>>> df.show(n=2, truncate=False, vertical=True)
-RECORD 0-------------
 id        | 1        
 firstName | Mark     
 lastName  | Brown    
-RECORD 1-------------
 id        | 2        
 firstName | Tom      
 lastName  | Anderson 
only showing top 2 rows

Convert to Pandas and print Pandas DataFrame

Alternatively, you can convert your Spark DataFrame into a Pandas DataFrame using .toPandas() and finally print() it.

>>> df_pd = df.toPandas()
>>> print(df_pd)
   id firstName  lastName
0   1      Mark     Brown
1   2       Tom  Anderson
2   3    Joshua  Peterson

Note that this is not recommended when you have to deal with fairly large dataframes, as Pandas needs to load all the data into memory. If this is the case, the following configuration will help when converting a large spark dataframe to a pandas one:

spark.conf.set("spark.sql.execution.arrow.pyspark.enabled", "true")

For more details you can refer to my blog post Speeding up the conversion between PySpark and Pandas DataFrames

The solution that worked for me is by calling the 'material_select' function after the options data has been loaded. If you print out the value of OptionsList.find().count() to the console it's first 0 then a few milliseconds later the list gets populated with data.

Template.[name].rendered = function() {
    this.autorun(function() {
        var optionsCursor = OptionsList.find().count();
        if(optionsCursor > 0)
        {
            $('select').material_select();
        }
    });
};

The new ECMAScript module support is able natively in Node.js 12

It was released on 2019-04-23 and it means there is no need to use the flag --experimental-modules.

To read more about it:

The new ECMAScript module support in Node.js 12

With the two previous steps stated above, you're still missing the foreign key constraint. This should work:

  class AddUserReferenceToTester < ActiveRecord::Migration
      def change
          add_column :testers, :user_id, :integer, references: :users
      end
  end

In addition to the accepted answer, one other check is to make sure that you have the right reference to your entity package in sessionFactory.setPackagesToScan(...) while setting up your session factory.

You could use replicate or sapply:

R> colMeans(replicate(10000, sample(100, size=815, replace=TRUE, prob=NULL))) R> sapply(seq_len(10000), function(...) mean(sample(100, size=815, replace=TRUE, prob=NULL))) 

replicate is a wrapper for the common use of sapply for repeated evaluation of an expression (which will usually involve random number generation).

Since XCode 4.3 the location has changed, the simulator can now be found at:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/

$name=array(); 
while($result=mysql_fetch_array($res)) {
    $name[]=array('Id'=>$result['id']); 
    // here you want to fetch all 
    // records from table like this. 
    // then you should get the array 
    // from all rows into one array 
}

Be aware that HttpOnly doesn't stop cross-site scripting; instead, it neutralizes one possible attack, and currently does that only on IE (FireFox exposes HttpOnly cookies in XmlHttpRequest, and Safari doesn't honor it at all). By all means, turn HttpOnly on, but don't drop even an hour of output filtering and fuzz testing in trade for it.

I know this is an old Question

But in case you want to do it programmatically or the java way

For Image Backgrounds; you can use BackgroundImage class

BackgroundImage myBI= new BackgroundImage(new Image("my url",32,32,false,true),
        BackgroundRepeat.REPEAT, BackgroundRepeat.NO_REPEAT, BackgroundPosition.DEFAULT,
          BackgroundSize.DEFAULT);
//then you set to your node
myContainer.setBackground(new Background(myBI));

For Paint or Fill Backgrounds; you can use BackgroundFill class

BackgroundFill myBF = new BackgroundFill(Color.BLUEVIOLET, new CornerRadii(1),
         new Insets(0.0,0.0,0.0,0.0));// or null for the padding
//then you set to your node or container or layout
myContainer.setBackground(new Background(myBF));

Keeps your java alive && your css dead..

While Shannon's answer is technically correct, it looks like overkill.

The simple solution is that you need to put your summation outside of the case statement. This should do the trick:

sum(CASE WHEN col1 > col2 THEN col3*col4 ELSE 0 END) AS some_product

Basically, your old code tells SQL to execute the sum(X*Y) for each line individually (leaving each line with its own answer that can't be grouped).

The code line I have written takes the sum product, which is what you want.

Put your div inside another div, apply the border to the outer div with n amount of padding/margin where n is the space you want between them.

You can center an image, both horizontally and vertically, using margin: auto and absolute positioning. Also:

1. It is possible to ditch extra markup by using pseudo elements.
2. It is possible to display the middle portion of LARGE images by using negative left, top, right and bottom values.

.responsive-container {_x000D_
  margin: 1em auto;_x000D_
  min-width: 200px;       /* cap container min width */_x000D_
  max-width: 500px;       /* cap container max width */_x000D_
  position: relative;     _x000D_
  overflow: hidden;       /* crop if image is larger than container */_x000D_
  background-color: #CCC; _x000D_
}_x000D_
.responsive-container:before {_x000D_
  content: "";            /* using pseudo element for 1:1 ratio */_x000D_
  display: block;_x000D_
  padding-top: 100%;_x000D_
}_x000D_
.responsive-container img {_x000D_
  position: absolute;_x000D_
  top: -999px;            /* use sufficiently large number */_x000D_
  bottom: -999px;_x000D_
  left: -999px;_x000D_
  right: -999px;_x000D_
  margin: auto;           /* center horizontally and vertically */_x000D_
}

<p>Note: images are center-cropped on &lt;400px screen width._x000D_
  <br>Open full page demo and resize browser.</p>_x000D_
<div class="responsive-container">_x000D_
  <img src="http://lorempixel.com/400/400/sports/9/">_x000D_
</div>_x000D_
<div class="responsive-container">_x000D_
  <img src="http://lorempixel.com/400/200/sports/8/">_x000D_
</div>_x000D_
<div class="responsive-container">_x000D_
  <img src="http://lorempixel.com/200/400/sports/7/">_x000D_
</div>_x000D_
<div class="responsive-container">_x000D_
  <img src="http://lorempixel.com/200/200/sports/6/">_x000D_
</div>

for ($s=65; $s<=90; $s++) {
    //echo chr($s);
    $objPHPExcel->getActiveSheet()->getColumnDimension(chr($s))->setAutoSize(true);
}

If you want to automate the creating of a custom divergent colormap commonly used for surface plots, this module combined with @unutbu method worked well for me.

def diverge_map(high=(0.565, 0.392, 0.173), low=(0.094, 0.310, 0.635)):
    '''
    low and high are colors that will be used for the two
    ends of the spectrum. they can be either color strings
    or rgb color tuples
    '''
    c = mcolors.ColorConverter().to_rgb
    if isinstance(low, basestring): low = c(low)
    if isinstance(high, basestring): high = c(high)
    return make_colormap([low, c('white'), 0.5, c('white'), high])

The high and low values can be either string color names or rgb tuples. This is the result using the surface plot demo:

You do this via attributes on the properties, like this:

[Description("Test text displayed in the textbox"),Category("Data")] 
public string Text {
  get => myInnerTextBox.Text;
  set => myInnerTextBox.Text = value;
}

The category is the heading under which the property will appear in the Visual Studio Properties box. Here's a more complete MSDN reference, including a list of categories.

Late to the party, but what about

things.stream()
    .map(this::resolve)
    .filter(Optional::isPresent)
    .findFirst().get();

You can get rid of the last get() if you create a util method to convert optional to stream manually:

things.stream()
    .map(this::resolve)
    .flatMap(Util::optionalToStream)
    .findFirst();

If you return stream right away from your resolve function, you save one more line.

The solution that doesn't involve repetitive additions or maybe the n(n+1)/2 formula doesn't get to you at an interview time for instance.

You have to use an array of 4 ints (32 bits) or 2 ints (64 bits). Initialize the last int with (-1 & ~(1 << 31)) >> 3. (the bits that are above 100 are set to 1) Or you may set the bits above 100 using a for loop.

1. Go through the array of numbers and set 1 for the bit position corresponding to the number (e.g. 71 would be set on the 3rd int on the 7th bit from left to right)
2. Go through the array of 4 ints (32 bit version) or 2 ints(64 bit version)

    public int MissingNumber(int a[])
    {   
        int bits = sizeof(int) * 8;
        int i = 0;
        int no = 0;
        while(a[i] == -1)//this means a[i]'s bits are all set to 1, the numbers is not inside this 32 numbers section
        {
            no += bits;
            i++;
        }
        return no + bits - Math.Log(~a[i], 2);//apply NOT (~) operator to a[i] to invert all bits, and get a number with only one bit set (2 at the power of something)
    }

Example: (32 bit version) lets say that the missing number is 58. That means that the 26th bit (left to right) of the second integer is set to 0.

The first int is -1 (all bits are set) so, we go ahead for the second one and add to "no" the number 32. The second int is different from -1 (a bit is not set) so, by applying the NOT (~) operator to the number we get 64. The possible numbers are 2 at the power x and we may compute x by using log on base 2; in this case we get log2(64) = 6 => 32 + 32 - 6 = 58.

Hope this helps.

I know its been a while but Ill add to this, based on the most popular answer but with a little extension Id like to share the below:

static class ExtensionsThatWillAppearOnIEnumerables
{
    public static T FirstOr<T>(this IEnumerable<T> source, Func<T, bool> predicate, Func<T> alternate)
    {
        var thing = source.FirstOrDefault(predicate);
        if (thing != null)
            return thing;
        return alternate();
    }
}

This allows me to call it inline as such with my own example I was having issues with:

_controlDataResolvers.FirstOr(x => x.AppliesTo(item.Key), () => newDefaultResolver()).GetDataAsync(conn, item.ToList())

So for me I just wanted a default resolver to be used inline, I can do my usual check and then pass in a function so a class isn't instantiated even if unused, its a function to execute when required instead!

best way and more simple to center an iframe on your webpage is :

<p align="center"><iframe src="http://www.google.com/" width=500 height="500"></iframe></p>

where width and height will be the size of your iframe in your html page.

You could create a class that extends the Tkinter Button class, that will be specialised to close your window by associating the destroy method to its command attribute:

from tkinter import *

class quitButton(Button):
    def __init__(self, parent):
        Button.__init__(self, parent)
        self['text'] = 'Good Bye'
        # Command to close the window (the destory method)
        self['command'] = parent.destroy
        self.pack(side=BOTTOM)

root = Tk()
quitButton(root)
mainloop()

This is the output:

And the reason why your code did not work before:

def close_window (): 
    # root.destroy()
    window.destroy()

I have a slight feeling you might got the root from some other place, since you did window = tk().

When you call the destroy on the window in the Tkinter means destroying the whole application, as your window (root window) is the main window for the application. IMHO, I think you should change your window to root.

from tkinter import *

def close_window():
    root.destroy()  # destroying the main window

root = Tk()
frame = Frame(root)
frame.pack()

button = Button(frame)
button['text'] ="Good-bye."
button['command'] = close_window
button.pack()

mainloop()

Following Felix Klings advice I tried it out in my chrome browser.

console.dir([1,2]) gives the following output:

Array[2]
 0: 1
 1: 2
 length: 2
 __proto__: Array[0]

While console.log([1,2]) gives the following output:

[1, 2]

So I believe console.dir() should be used to get more information like prototype etc in arrays and objects.

from the man page

linux$ man -S 5 crontab

   cron(8) examines cron entries once every minute.

   The time and date fields are:

          field          allowed values
          -----          --------------
          minute         0-59
          hour           0-23
          day of month   1-31
          month          1-12 (or names, see below)
          day of week    0-7 (0 or 7 is Sun, or use names)
   ...
   # run five minutes after midnight, every day
   5 0 * * *       $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
   ...

It is good to note the special "nicknames" that can be used (documented in the man page), particularly "@reboot" which has no time and date alternative.

   # Run once after reboot.
   @reboot         /usr/local/sbin/run_only_once_after_reboot.sh

You can also use this trick to run your cron job multiple times per minute.

   # Run every minute at 0, 20, and 40 second intervals
   * * * * *       sleep 00; /usr/local/sbin/run_3times_per_minute.sh
   * * * * *       sleep 20; /usr/local/sbin/run_3times_per_minute.sh
   * * * * *       sleep 40; /usr/local/sbin/run_3times_per_minute.sh

To add a cron job, you can do one of three things:

1. add a command to a user's crontab, as shown above (and from the crontab, section 5, man page).

   • edit a user's crontab as root with crontab -e -u <username>
   • or edit the current user's crontab with just crontab -e
   • You can set the editor with the EDITOR environment variable
     • env EDITOR=nano crontab -e -u <username>
     • or set the value of EDITOR for your entire shell session
       1. export EDITOR=vim
       2. crontab -e
   • Make scripts executable with chmod a+x <file>

2. create a script/program as a cron job, and add it to the system's anacron /etc/cron.*ly directories

   • anacron /etc/cron.*ly directories:
     • /etc/cron.daily
     • /etc/cron.hourly
     • /etc/cron.monthly
     • /etc/cron.weekly
   • as in:
     • /etc/cron.daily/script_runs_daily.sh
     • chmod a+x /etc/cron.daily/script_runs_daily.sh -- make it executable
   • See also the anacron man page: man anacron
   • Make scripts executable with chmod a+x <file>
   • When do these cron.*ly script run?
     • For RHEL/CentOS 5.x, they are configured in /etc/crontab or /etc/anacrontab to run at a set time
     • RHEL/CentOS 6.x+ and Fedora 17+ Linux systems only define this in /etc/anacrontab, and define cron.hourly in /etc/cron.d/0hourly

3. Or, One can create system crontables in /etc/cron.d.

   • The previously described crontab syntax (with additionally providing a user to execute each job as) is put into a file, and the file is dropped into the /etc/cron.d directory.
   • These are easy to manage in system packaging (e.g. RPM packages), so may usually be application specific.
   • The syntax difference is that a user must be specified for the cron job after the time/date fields and before the command to execute.
   • The files added to /etc/cron.d do not need to be executable.
   • Here is an example job that is executed as the user someuser, and the use of /bin/bash as the shell is forced.

   File: /etc/cron.d/myapp-cron
   # use /bin/bash to run commands, no matter what /etc/passwd says
   SHELL=/bin/bash
   # Execute a nightly (11:00pm) cron job to scrub application records
   00 23 * * * someuser /opt/myapp/bin/scrubrecords.php

Note that you can change the default encoding of the JVM using the confusingly-named property file.encoding.

If your application is particularly sensitive to encodings (perhaps through usage of APIs implying default encodings), then you should explicitly set this on JVM startup to a consistent (known) value.

To check if this extensions are enabled or not, you can create a php file i.e. info.php and write the following code there:

<?php 
echo "GD: ", extension_loaded('gd') ? 'OK' : 'MISSING', '<br>';
echo "XML: ", extension_loaded('xml') ? 'OK' : 'MISSING', '<br>';
echo "zip: ", extension_loaded('zip') ? 'OK' : 'MISSING', '<br>';
?>

That's it.

We dont need redux-persist we can simply use redux for persistance.

react-redux + AsyncStorage = redux-persist

so inside createsotre file simply add these lines

store.subscribe(async()=> await AsyncStorage.setItem("store", JSON.stringify(store.getState())))

this will update the AsyncStorage whenever there are some changes in the redux store.

Then load the json converted store. when ever the app loads. and set the store again.

Because redux-persist creates issues when using wix react-native-navigation. If that's the case then I prefer to use simple redux with above subscriber function

I also faced the same issue. I found the solutions like following.

Solution 1: I kept my script tag in the body.

<body>
   <form> . . . .  </form>
    <script type="text/javascript" src="<%= My.Working.Common.Util.GetSiteLocation()%>Scripts/Common.js"></script> </body>

Now conflicts regarding the tags will resolve.

Solution 2:

We can also solve this one of the above solutions like Replace the code block with <%# instead of <%= But the problem is it will give only relative path. If you want really absolute path it won't work.

Solution 1 works for me. Next is your choice.

Yes there is a way to do it.

First declare a class.

//anyfile.ts
export class Custom
{
  name: string, 
  empoloyeeID: number
}

Then in your component import the class

import {Custom} from '../path/to/anyfile.ts'
.....
export class FormComponent implements OnInit {
 name: string;
 empoloyeeID : number;
 empList: Array<Custom> = [];
 constructor() {

 }

 ngOnInit() {
 }
 onEmpCreate(){
   //console.log(this.name,this.empoloyeeID);
   let customObj = new Custom();
   customObj.name = "something";
   customObj.employeeId = 12; 
   this.empList.push(customObj);
   this.name ="";
   this.empoloyeeID = 0; 
 }
}

Another way would be to interfaces read the documentation once - https://www.typescriptlang.org/docs/handbook/interfaces.html

Also checkout this question, it is very interesting - When to use Interface and Model in TypeScript / Angular2

Type "set" and you will get a list of all the current variables. If you want something to persist put it in ~/.bashrc or ~/.bash_profile (if you're using bash)

You're &ing the wrong bits. I think you want:

s = *ptr >> 31;
e = *ptr & 0x7f800000;
e >>= 23;
m = *ptr & 0x007fffff;

Remember, when you &, you are zeroing out bits that you don't set. So in this case, you want to zero out the sign bit when you get the exponent, and you want to zero out the sign bit and the exponent when you get the mantissa.

Note that the masks come directly from your picture. So, the exponent mask will look like:

0 11111111 00000000000000000000000

and the mantissa mask will look like:

0 00000000 11111111111111111111111

I would suggest you to use CryptoJS in this case.

Basically CryptoJS is a growing collection of standard and secure cryptographic algorithms implemented in JavaScript using best practices and patterns. They are fast, and they have a consistent and simple interface.

So In case you want calculate hash(MD5) of your password string then do as follows :

<script src="http://crypto-js.googlecode.com/svn/tags/3.0.2/build/rollups/md5.js"></script>
<script>
    var passhash = CryptoJS.MD5(password).toString();

    $.post(
      'includes/login.php', 
      { user: username, pass: passhash },
      onLogin, 
      'json' );
</script>

So this script will post hash of your password string to the server.

For further info and support on other hash calculating algorithms you can visit at:

http://code.google.com/p/crypto-js/

OAuth 2 is apparently a waste of time (from the mouth of someone that was heavily involved in it):

https://hueniverse.com/oauth-2-0-and-the-road-to-hell-8eec45921529

He says (edited for brevity and bolded for emphasis):

...I can no longer be associated with the OAuth 2.0 standard. I resigned my role as lead author and editor, withdraw my name from the specification, and left the working group. Removing my name from a document I have painstakingly labored over for three years and over two dozen drafts was not easy. Deciding to move on from an effort I have led for over five years was agonizing.

...At the end, I reached the conclusion that OAuth 2.0 is a bad protocol. WS-* bad. It is bad enough that I no longer want to be associated with it. ...When compared with OAuth 1.0, the 2.0 specification is more complex, less interoperable, less useful, more incomplete, and most importantly, less secure.

To be clear, OAuth 2.0 at the hand of a developer with deep understanding of web security will likely result is a secure implementation. However, at the hands of most developers – as has been the experience from the past two years – 2.0 is likely to produce insecure implementations.

Run this inside python shell:

from distutils.sysconfig import get_python_lib
print(get_python_lib())

Call this method on BaseActivity -> onCreate() and BaseFragment -> OnCreateView()

Tested on API 22, 23, 24, 25, 26, 27, 28, 29...uptodate version

fun Context.updateLang() {
    val resources = resources
    val config = Configuration(resources.configuration)
    config.setLocale(PreferenceManager(this).getAppLanguage()) // language from preference
    val dm = resources.displayMetrics
    createConfigurationContext(config)
    resources.updateConfiguration(config, dm)
}

I got the same error in this code:

 var articulos_en_almacen = xx.IV00102.Where(iv => alm_x_suc.Exists(axs => axs.almacen == iv.LOCNCODE.Trim())).Select(iv => iv.ITEMNMBR.Trim()).ToList();

this was the exactly error:

System.NotSupportedException: 'LINQ to Entities does not recognize the method 'Boolean Exists(System.Predicate`1[conector_gp.Models.almacenes_por_sucursal])' method, and this method cannot be translated into a store expression.'

I solved this way:

var articulos_en_almacen = xx.IV00102.ToList().Where(iv => alm_x_suc.Exists(axs => axs.almacen == iv.LOCNCODE.Trim())).Select(iv => iv.ITEMNMBR.Trim()).ToList();

I added a .ToList() before my table, this decouple the Entity and linq code, and avoid my next linq expression be translated

NOTE: this solution isn't optimal, because avoid entity filtering, and simply loads all table into memory

The previous answer is pretty good, but I also wanted to mention that there is a fixed layout equivalent for grids, you just need to write minmax(0, 1fr) instead of 1fr as your track size.

This would be the best and short answer for understanding Service Vs Factory Vs Provider

Source: https://groups.google.com/forum/#!msg/angular/56sdORWEoqg/HuZsOsMvKv4J

Here what ben says with a demo http://jsbin.com/ohamub/1/edit?html,output

"There are comments in the code illustrating the primary differences but I will expand on them a bit here. As a note, I am just getting my head around this so if I say anything that is wrong please let me know.

Services

Syntax: module.service( 'serviceName', function );

Result: When declaring serviceName as an injectable argument you will be provided the actual function reference passed to module.service.

Usage: Could be useful for sharing utility functions that are useful to invoke by simply appending () to the injected function reference. Could also be run with injectedArg.call( this ) or similar.

Factories

Syntax: module.factory( 'factoryName', function );

Result: When declaring factoryName as an injectable argument you will be provided the value that is returned by invoking the function reference passed to module.factory.

Usage: Could be useful for returning a 'class' function that can then be new'ed to create instances.

Providers

Syntax: module.provider( 'providerName', function );

Result: When declaring providerName as an injectable argument you will be provided the value that is returned by invoking the $get method of the function reference passed to module.provider.

Usage: Could be useful for returning a 'class' function that can then be new'ed to create instances but that requires some sort of configuration before being injected. Perhaps useful for classes that are reusable across projects? Still kind of hazy on this one." Ben

I've wrote my simple method for it :

public class SomeCommons {
    /** Message Format like 'Some String {0} / {1}' with arguments */
    public static String msgFormat(String s, Object... args) {
        return new MessageFormat(s).format(args);
    }
}

so you can use it as:

SomeCommons.msfgFormat("Step {1} of {2}", 1 , "two");

To create list and list of lists use below syntax

     x = [[] for i in range(10)]

this will create 1-d list and to initialize it put number in [[number] and set length of list put length in range(length)

• To create list of lists use below syntax.

    x = [[[0] for i in range(3)] for i in range(10)]

this will initialize list of lists with 10*3 dimension and with value 0

• To access/manipulate element

    x[1][5]=value

A beautiful gem in this closed question:

The "oneliner way", altering neither of the input dicts, is

basket = dict(basket_one, **basket_two)

Learn what **basket_two (the **) means here.

In case of conflict, the items from basket_two will override the ones from basket_one. As one-liners go, this is pretty readable and transparent, and I have no compunction against using it any time a dict that's a mix of two others comes in handy (any reader who has trouble understanding it will in fact be very well served by the way this prompts him or her towards learning about dict and the ** form;-). So, for example, uses like:

x = mungesomedict(dict(adict, **anotherdict))

are reasonably frequent occurrences in my code.

Originally submitted by Alex Martelli

Note: In Python 3, this will only work if every key in basket_two is a string.

PHP framework Symfony 4 has $filenameFallback in HeaderUtils::makeDisposition. You can look into this function for details - it is similar to the answers above.

Usage example:

$filenameFallback = preg_replace('#^.*\.#', md5($filename) . '.', $filename);
$disposition = $response->headers->makeDisposition(ResponseHeaderBag::DISPOSITION_ATTACHMENT, $filename, $filenameFallback);
$response->headers->set('Content-Disposition', $disposition);

You are simply reducing the values from a number. So substracting 6 from 3 (date) will return -3 only.

You need to individually add/remove unit of time in date object

var date = new Date();
date.setDate( date.getDate() - 6 );
date.setFullYear( date.getFullYear() - 1 );
$("#searchDateFrom").val((date.getMonth() ) + '/' + (date.getDate()) + '/' + (date.getFullYear()));

I suggest use the common way of import.

First I will explain the way it called "relative import" maybe this way cause of some error

Second I will explain the common way of import.

FIRST:

In go version >= 1.12 there is some new tips about import file and somethings changed.

1- You should put your file in another folder for example I create a file in "model" folder and the file's name is "example.go"

2- You have to use uppercase when you want to import a file!

3- Use Uppercase for variables, structures and functions that you want to import in another files

Notice: There is no way to import the main.go in another file.

file directory is:

root
|_____main.go
|_____model
          |_____example.go

this is a example.go:

package model

import (
    "time"
)

var StartTime = time.Now()

and this is main.go you should use uppercase when you want to import a file. "Mod" started with uppercase

package main

import (
    Mod "./model"
    "fmt"
)

func main() {
    fmt.Println(Mod.StartTime)
}

NOTE!!!

NOTE: I don't recommend this this type of import!

SECOND:

(normal import)

the better way import file is:

your structure should be like this:

root
|_____github.com
         |_________Your-account-name-in-github
         |                |__________Your-project-name
         |                                |________main.go
         |                                |________handlers
         |                                |________models
         |               
         |_________gorilla
                         |__________sessions

and this is a example:

package main

import (
    "github.com/gorilla/sessions"
)

func main(){
     //you can use sessions here
}

so you can import "github.com/gorilla/sessions" in every where that you want...just import it.

On my Windows 7 machine I have the following environment variables:

• JAVA_HOME=C:\Program Files\Java\jdk1.7.0_07

• M2_HOME=C:\apache-maven-3.0.3

On my PATH variable, I have (among others) the following:

• %JAVA_HOME%\bin;%M2_HOME%\bin

I tried doing what you've done with %M2% having the nested %M2_HOME% and it also works.

It looks like psexec -h is the way to do this:

 -h         If the target system is Windows Vista or higher, has the process
            run with the account's elevated token, if available.

Which... doesn't seem to be listed in the online documentation in Sysinternals - PsExec.

But it works on my machine.

When I was doing the same query, I had hard time adjusting the solutions to my case, though all the previous answers have good insights.

Here is a solution when one has to acquire a list of unique objects, NOT strings. Let's say, one has a list of Record object. Record class has only properties of type String, NO property of type int. Here implementing hashCode() becomes difficult as hashCode() needs to return an int.

The following is a sample Record Class.

public class Record{

    String employeeName;
    String employeeGroup;

    Record(String name, String group){  
        employeeName= name;
        employeeGroup = group;    
    }
    public String getEmployeeName(){
        return employeeName;
    }
    public String getEmployeeGroup(){
        return employeeGroup;
    }

  @Override
    public boolean equals(Object o){
         if(o instanceof Record){
            if (((Record) o).employeeGroup.equals(employeeGroup) &&
                  ((Record) o).employeeName.equals(employeeName)){
                return true;
            }
         }
         return false;
    }

    @Override
    public int hashCode() { //this should return a unique code
        int hash = 3; //this could be anything, but I would chose a prime(e.g. 5, 7, 11 )
        //again, the multiplier could be anything like 59,79,89, any prime
        hash = 89 * hash + Objects.hashCode(this.employeeGroup); 
        return hash;
    }

As suggested earlier by others, the class needs to override both the equals() and the hashCode() method to be able to use HashSet.

Now, let's say, the list of Records is allRecord(List<Record> allRecord).

Set<Record> distinctRecords = new HashSet<>();

for(Record rc: allRecord){
    distinctRecords.add(rc);
}

This will only add the distinct Records to the Hashset, distinctRecords.

Hope this helps.

As far as "built-in" libraries go, the << and >> have been reserved specifically for serialization.

You should override << to output your object to some serialization context (usually an iostream) and >> to read data back from that context. Each object is responsible for outputting its aggregated child objects.

This method works fine so long as your object graph contains no cycles.

If it does, then you will have to use a library to deal with those cycles.

Just wanted to contribute after spending the last hour on a nearly identical problem. My solution was that somehow our applicatons .jar was corrupted, so placing the jar from our dev server provided a fix.

To add some info that helped me today, a jQuery object/this can also be passed in to the .not() selector.

$(document).ready(function(){_x000D_
    $(".navitem").click(function(){_x000D_
        $(".navitem").removeClass("active");_x000D_
        $(".navitem").not($(this)).addClass("active");_x000D_
    });_x000D_
});

.navitem_x000D_
{_x000D_
    width: 100px;_x000D_
    background: red;_x000D_
    color: white;_x000D_
    display: inline-block;_x000D_
    position: relative;_x000D_
    text-align: center;_x000D_
}_x000D_
.navitem.active_x000D_
{_x000D_
    background:green;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<div class="navitem">Home</div>_x000D_
<div class="navitem">About</div>_x000D_
<div class="navitem">Pricing</div>

The above example can be simplified, but wanted to show the usage of this in the not() selector.

Putting it in the "web.config" works fine. The problem was that I got the MIME type wrong. Instead of font/x-woff or font/x-font-woff it must be application/font-woff:

<system.webServer>
  ...
  <staticContent>
    <remove fileExtension=".woff" />
    <mimeMap fileExtension=".woff" mimeType="application/font-woff" />
  </staticContent>
</system.webServer>

See also this answer regarding the MIME type: https://stackoverflow.com/a/5142316/135441

Update 4/10/2013

Spec is now a recommendation and the MIME type is officially: application/font-woff

<script type="text/javascript">
        $(document).ready(function(){

                $('.appBanner').fadeOut('slow');

        });
    </script>

or

<script type="text/javascript">
        $(document).ready(function(){

                $('.appBanner').hide();

        });
    </script>

If you define a class without any constructor, the compiler will synthesize a constructor for you (and that will be a default constructor -- i.e., one that doesn't require any arguments). If, however, you do define a constructor, (even if it does take one or more arguments) the compiler will not synthesize a constructor for you -- at that point, you've taken responsibility for constructing objects of that class, so the compiler "steps back", so to speak, and leaves that job to you.

You have two choices. You need to either provide a default constructor, or you need to supply the correct parameter when you define an object. For example, you could change your constructor to look something like:

Blowfish(BlowfishAlgorithm algorithm = CBC);

...so the ctor could be invoked without (explicitly) specifying an algorithm (in which case it would use CBC as the algorithm).

The other alternative would be to explicitly specify the algorithm when you define a Blowfish object:

class GameCryptography { 
    Blowfish blowfish_;
public:
    GameCryptography() : blowfish_(ECB) {}
    // ...
};

In C++ 11 (or later) you have one more option available. You can define your constructor that takes an argument, but then tell the compiler to generate the constructor it would have if you didn't define one:

class GameCryptography { 
public:

    // define our ctor that takes an argument
    GameCryptography(BlofishAlgorithm); 

    // Tell the compiler to do what it would have if we didn't define a ctor:
    GameCryptography() = default;
};

As a final note, I think it's worth mentioning that ECB, CBC, CFB, etc., are modes of operation, not really encryption algorithms themselves. Calling them algorithms won't bother the compiler, but is unreasonably likely to cause a problem for others reading the code.

In my case (Rails 5), I ended up adding these 2 lines in my app/config/environments/development.rb

config.time_zone = "Melbourne"
config.active_record.default_timezone = :local

That's it! And to make sure that Melbourne was read correctly, I ran the command in my terminal:

bundle exec rake time:zones:all

and Melbourne was listing in the timezone I'm in!

This work for me

@Html.TextBoxFor(model => model.Age, htmlAttributes: new { @Value = "" })

While the accepted solution works, it is not complete. By far.

If you want to get all the keys, you need to take into consideration 2 more things:

x86 & x64 applications do not have access to the same registry. Basically x86 cannot normally access x64 registry. And some applications only register to the x64 registry.

and

some applications actually install into the CurrentUser registry instead of the LocalMachine

With that in mind, I managed to get ALL installed applications using the following code, WITHOUT using WMI

Here is the code:

List<string> installs = new List<string>();
List<string> keys = new List<string>() {
  @"SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall",
  @"SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall"
};

// The RegistryView.Registry64 forces the application to open the registry as x64 even if the application is compiled as x86 
FindInstalls(RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64), keys, installs);
FindInstalls(RegistryKey.OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64), keys, installs);

installs = installs.Where(s => !string.IsNullOrWhiteSpace(s)).Distinct().ToList();
installs.Sort(); // The list of ALL installed applications



private void FindInstalls(RegistryKey regKey, List<string> keys, List<string> installed)
{
  foreach (string key in keys)
  {
    using (RegistryKey rk = regKey.OpenSubKey(key))
    {
      if (rk == null)
      {
        continue;
      }
      foreach (string skName in rk.GetSubKeyNames())
      {
        using (RegistryKey sk = rk.OpenSubKey(skName))
        {
          try
          {
            installed.Add(Convert.ToString(sk.GetValue("DisplayName")));
          }
          catch (Exception ex)
          { }
        }
      }
    }
  }
}

So far, nearly all of the listed solutions are allocating GC Memory, which is very much the C# way to do things but far from ideal in performance critical environments. (The ones that do not allocate use loops and also don't take trailing zeros into consideration.)

So to avoid GC Allocs, you can just access the scale bits in an unsafe context. That might sound fragile but as per Microsoft's reference source, the struct layout of decimal is Sequential and even has a comment in there, not to change the order of the fields:

    // NOTE: Do not change the order in which these fields are declared. The
    // native methods in this class rely on this particular order.
    private int flags;
    private int hi;
    private int lo;
    private int mid;

As you can see, the first int here is the flags field. From the documentation and as mentioned in other comments here, we know that only the bits from 16-24 encode the scale and that we need to avoid the 31st bit which encodes the sign. Since int is the size of 4 bytes, we can safely do this:

internal static class DecimalExtensions
{
  public static byte GetScale(this decimal value)
  {
    unsafe
    {
      byte* v = (byte*)&value;
      return v[2];
    }
  }
}

This should be the most performant solution since there is no GC alloc of the bytes array or ToString conversions. I've tested it against .Net 4.x and .Net 3.5 in Unity 2019.1. If there are any versions where this does fail, please let me know.

Edit:

Thanks to @Zastai for reminding me about the possibility to use an explicit struct layout to practically achieve the same pointer logic outside of unsafe code:

[StructLayout(LayoutKind.Explicit)]
public struct DecimalHelper
{
    const byte k_SignBit = 1 << 7;

    [FieldOffset(0)]
    public decimal Value;

    [FieldOffset(0)]
    public readonly uint Flags;
    [FieldOffset(0)]
    public readonly ushort Reserved;
    [FieldOffset(2)]
    byte m_Scale;
    public byte Scale
    {
        get
        {
            return m_Scale;
        }
        set
        {
            if(value > 28)
                throw new System.ArgumentOutOfRangeException("value", "Scale can't be bigger than 28!")
            m_Scale = value;
        }
    }
    [FieldOffset(3)]
    byte m_SignByte;
    public int Sign
    {
        get
        {
            return m_SignByte > 0 ? -1 : 1;
        }
    }
    public bool Positive
    {
        get
        {
            return (m_SignByte & k_SignBit) > 0 ;
        }
        set
        {
            m_SignByte = value ? (byte)0 : k_SignBit;
        }
    }
    [FieldOffset(4)]
    public uint Hi;
    [FieldOffset(8)]
    public uint Lo;
    [FieldOffset(12)]
    public uint Mid;

    public DecimalHelper(decimal value) : this()
    {
        Value = value;
    }

    public static implicit operator DecimalHelper(decimal value)
    {
        return new DecimalHelper(value);
    }

    public static implicit operator decimal(DecimalHelper value)
    {
        return value.Value;
    }
}

To solve the original problem, you could strip away all fields besides Value and Scale but maybe it could be useful for someone to have them all.

Just to complete it:

(gdb) p (char[10]) *($ebx)
$87 =   "asdfasdfe\n"

You must give a length, but may change the representation of that string:

(gdb) p/x (char[10]) *($ebx)
$90 =   {0x61,
  0x73,
  0x64,
  0x66,
  0x61,
  0x73,
  0x64,
  0x66,
  0x65,
  0xa}

This may be useful if you want to debug by their values

I've used the following code a few times and it works sweet:

$("body").click(function(e){ 
    // Check what has been clicked:
    var target = $(e.target); 
    if(target.is("#target")){
    // The target was clicked
    // Do something...
  }
});

The COPY command isn't what is restricted. What is restricted is directing the output from the TO to anywhere except to STDOUT. However, there is no restriction on specifying the output file via the \o command.

\o '/tmp/products_199.csv';
COPY products_273 TO STDOUT WITH (FORMAT CSV, HEADER);

Using tail -f output should work.

Try this:

    list.setOnItemSelectedListener(new OnItemSelectedListener() {

    @Override
    public void onItemSelected(AdapterView<?> arg0, View arg1,
            int arg2, long arg3)
    }

    @Override
    public void onNothingSelected(AdapterView<?> arg0) {

    }
});

It's VBA. VBA means Visual Basic for Applications, and it is used for macros on Office documents. It doesn't have access to VB.NET features, so it's more like a modified version of VB6, with add-ons to be able to work on the document (like Worksheet in VBA for Excel).

The CSV format is implemented as ASCII, not unicode, in Excel, thus mangling the diacritics. We experienced the same issue which is how I tracked down that the official CSV standard was defined as being ASCII-based in Excel.

Cantor pairing function is really one of the better ones out there considering its simple, fast and space efficient, but there is something even better published at Wolfram by Matthew Szudzik, here. The limitation of Cantor pairing function (relatively) is that the range of encoded results doesn't always stay within the limits of a 2N bit integer if the inputs are two N bit integers. That is, if my inputs are two 16 bit integers ranging from 0 to 2^16 -1, then there are 2^16 * (2^16 -1) combinations of inputs possible, so by the obvious Pigeonhole Principle, we need an output of size at least 2^16 * (2^16 -1), which is equal to 2^32 - 2^16, or in other words, a map of 32 bit numbers should be feasible ideally. This may not be of little practical importance in programming world.

Cantor pairing function:

(a + b) * (a + b + 1) / 2 + a; where a, b >= 0

The mapping for two maximum most 16 bit integers (65535, 65535) will be 8589803520 which as you see cannot be fit into 32 bits.

Enter Szudzik's function:

a >= b ? a * a + a + b : a + b * b;  where a, b >= 0

The mapping for (65535, 65535) will now be 4294967295 which as you see is a 32 bit (0 to 2^32 -1) integer. This is where this solution is ideal, it simply utilizes every single point in that space, so nothing can get more space efficient.

Now considering the fact that we typically deal with the signed implementations of numbers of various sizes in languages/frameworks, let's consider signed 16 bit integers ranging from -(2^15) to 2^15 -1 (later we'll see how to extend even the ouput to span over signed range). Since a and b have to be positive they range from 0 to 2^15 - 1.

Cantor pairing function:

The mapping for two maximum most 16 bit signed integers (32767, 32767) will be 2147418112 which is just short of maximum value for signed 32 bit integer.

Now Szudzik's function:

(32767, 32767) => 1073741823, much smaller..

Let's account for negative integers. That's beyond the original question I know, but just elaborating to help future visitors.

Cantor pairing function:

A = a >= 0 ? 2 * a : -2 * a - 1;
B = b >= 0 ? 2 * b : -2 * b - 1;
(A + B) * (A + B + 1) / 2 + A;

(-32768, -32768) => 8589803520 which is Int64. 64 bit output for 16 bit inputs may be so unpardonable!!

Szudzik's function:

A = a >= 0 ? 2 * a : -2 * a - 1;
B = b >= 0 ? 2 * b : -2 * b - 1;
A >= B ? A * A + A + B : A + B * B;

(-32768, -32768) => 4294967295 which is 32 bit for unsigned range or 64 bit for signed range, but still better.

Now all this while the output has always been positive. In signed world, it will be even more space saving if we could transfer half the output to negative axis. You could do it like this for Szudzik's:

A = a >= 0 ? 2 * a : -2 * a - 1;
B = b >= 0 ? 2 * b : -2 * b - 1;
C = (A >= B ? A * A + A + B : A + B * B) / 2;
a < 0 && b < 0 || a >= 0 && b >= 0 ? C : -C - 1;

(-32768, 32767) => -2147483648

(32767, -32768) => -2147450880

(0, 0) => 0 

(32767, 32767) => 2147418112

(-32768, -32768) => 2147483647

What I do: After applying a weight of 2 to the the inputs and going through the function, I then divide the ouput by two and take some of them to negative axis by multiplying by -1.

See the results, for any input in the range of a signed 16 bit number, the output lies within the limits of a signed 32 bit integer which is cool. I'm not sure how to go about the same way for Cantor pairing function but didn't try as much as its not as efficient. Furthermore, more calculations involved in Cantor pairing function means its slower too.

Here is a C# implementation.

public static long PerfectlyHashThem(int a, int b)
{
    var A = (ulong)(a >= 0 ? 2 * (long)a : -2 * (long)a - 1);
    var B = (ulong)(b >= 0 ? 2 * (long)b : -2 * (long)b - 1);
    var C = (long)((A >= B ? A * A + A + B : A + B * B) / 2);
    return a < 0 && b < 0 || a >= 0 && b >= 0 ? C : -C - 1;
}

public static int PerfectlyHashThem(short a, short b)
{
    var A = (uint)(a >= 0 ? 2 * a : -2 * a - 1);
    var B = (uint)(b >= 0 ? 2 * b : -2 * b - 1);
    var C = (int)((A >= B ? A * A + A + B : A + B * B) / 2);
    return a < 0 && b < 0 || a >= 0 && b >= 0 ? C : -C - 1;
}

Since the intermediate calculations can exceed limits of 2N signed integer, I have used 4N integer type (the last division by 2 brings back the result to 2N).

The link I have provided on alternate solution nicely depicts a graph of the function utilizing every single point in space. Its amazing to see that you could uniquely encode a pair of coordinates to a single number reversibly! Magic world of numbers!!

SELECT CASE WHEN CAST(date1 AS DATE) <= CAST(date2 AS DATE) ...

Should do what you need.

Test Case

WITH dates(date1, date2, date3, date4)
     AS (SELECT CAST('20101231 15:13:48.593' AS DATETIME),
                CAST('20101231 00:00:00.000' AS DATETIME),
                CAST('20101231 15:13:48.593' AS DATETIME),
                CAST('20101231 00:00:00.000' AS DATETIME))
SELECT CASE
         WHEN CAST(date1 AS DATE) <= CAST(date2 AS DATE) THEN 'Y'
         ELSE 'N'
       END AS COMPARISON_WITH_CAST,
       CASE
         WHEN date3 <= date4 THEN 'Y'
         ELSE 'N'
       END AS COMPARISON_WITHOUT_CAST
FROM   dates 

Returns

COMPARISON_WITH_CAST   |  COMPARISON_WITHOUT_CAST
Y                         N

To remove the decimals from your double, take a look at this output

Obj C

double hellodouble = 10.025;
NSLog(@"Your value with 2 decimals: %.2f", hellodouble);
NSLog(@"Your value with no decimals: %.0f", hellodouble);

The output will be:

10.02 
10

Swift 2.1 and Xcode 7.2.1

let hellodouble:Double = 3.14159265358979
print(String(format:"Your value with 2 decimals: %.2f", hellodouble))
print(String(format:"Your value with no decimals: %.0f", hellodouble))

The output will be:

3.14 
3

There's a lot of similar responses to this question, but none of them fully touch on the root cause. Sebastian Schmid's comment on the original post touches on it but not fully. Here's my take as of 2018-11-06:

Root Cause

When you try to upload a plugin through the WordPress admin interface, WordPress will make a call over to a function called "get_filesystem_method()" (ref: /wp-admin/includes/file.php:1549). This routine will attempt to write a file to the location in question (in this case the plugin directory). It can of course fail here immediately if file permissions aren't setup right to allow the WordPress user (think the user identity executing the php) to write the file to the location in question.

If the file can be created, this function then detects the file owner of the temporary file, along with the file owner of the function's current file (ref: /wp-admin/includes/file.php:1572) and compares the two. If they match then, in WordPress's words, "WordPress is creating files as the same owner as the WordPress files, this means it's safe to modify & create new files via PHP" and your plugin is uploaded successfully without the FTP Credentials prompt. If they don't match, you get the FTP Credentials prompt.

Fixes

1. Ensure the plugin directory is writable by the identity running your php process.

2. Ensure the identity that is running your php process is the file owner for either:

   a) All WordPress application files, or...
   b) At the very least the /wp-admin/includes/file.php file

Final Comments

I'm not overly keen on specifically applying file ownership to the file.php to work around this issue (it feels a tad hacky to say the least!). It seems to me at this point that the WordPress code base is leaning towards having us execute the PHP process under the same user principal as the file owner for the WordPress application files. I would welcome some comments from the community on this.

First example

std::vector<int> return_vector(void)
{
    std::vector<int> tmp {1,2,3,4,5};
    return tmp;
}

std::vector<int> &&rval_ref = return_vector();

The first example returns a temporary which is caught by rval_ref. That temporary will have its life extended beyond the rval_ref definition and you can use it as if you had caught it by value. This is very similar to the following:

const std::vector<int>& rval_ref = return_vector();

except that in my rewrite you obviously can't use rval_ref in a non-const manner.

Second example

std::vector<int>&& return_vector(void)
{
    std::vector<int> tmp {1,2,3,4,5};
    return std::move(tmp);
}

std::vector<int> &&rval_ref = return_vector();

In the second example you have created a run time error. rval_ref now holds a reference to the destructed tmp inside the function. With any luck, this code would immediately crash.

Third example

std::vector<int> return_vector(void)
{
    std::vector<int> tmp {1,2,3,4,5};
    return std::move(tmp);
}

std::vector<int> &&rval_ref = return_vector();

Your third example is roughly equivalent to your first. The std::move on tmp is unnecessary and can actually be a performance pessimization as it will inhibit return value optimization.

The best way to code what you're doing is:

Best practice

std::vector<int> return_vector(void)
{
    std::vector<int> tmp {1,2,3,4,5};
    return tmp;
}

std::vector<int> rval_ref = return_vector();

I.e. just as you would in C++03. tmp is implicitly treated as an rvalue in the return statement. It will either be returned via return-value-optimization (no copy, no move), or if the compiler decides it can not perform RVO, then it will use vector's move constructor to do the return. Only if RVO is not performed, and if the returned type did not have a move constructor would the copy constructor be used for the return.

How to upgrade the Python version for an existing virtualenvwrapper project and keep the same name

I'm adding an answer for anyone using Doug Hellmann's excellent virtualenvwrapper specifically since the existing answers didn't do it for me.

Some context:

• I work on some projects that are Python 2 and some that are Python 3; while I'd love to use python3 -m venv, it doesn't support Python 2 environments
• When I start a new project, I use mkproject which creates the virtual environment, creates an empty project directory, and cds into it
• I want to continue using virtualenvwrapper's workon command to activate any project irrespective of Python version

Directions:

Let's say your existing project is named foo and is currently running Python 2 (mkproject -p python2 foo), though the commands are the same whether upgrading from 2.x to 3.x, 3.6.0 to 3.6.1, etc. I'm also assuming you're currently inside the activated virtual environment.

1. Deactivate and remove the old virtual environment:

$ deactivate
$ rmvirtualenv foo

Note that if you've added any custom commands to the hooks (e.g., bin/postactivate) you'd need to save those before removing the environment.

2. Stash the real project in a temp directory:

$ cd ..
$ mv foo foo-tmp

3. Create the new virtual environment (and project dir) and activate:

$ mkproject -p python3 foo

4. Replace the empty generated project dir with real project, change back into project dir:

$ cd ..
$ mv -f foo-tmp foo
$ cdproject

5. Re-install dependencies, confirm new Python version, etc:

$ pip install -r requirements.txt
$ python --version

If this is a common use case, I'll consider opening a PR to add something like $ upgradevirtualenv / $ upgradeproject to virtualenvwrapper.

You can do something like this:

Using search will return a SRE_match object, if it matches your search string.

>>> import re
>>> m = re.search(u'ba[r|z|d]', 'bar')
>>> m
<_sre.SRE_Match object at 0x02027288>
>>> m.group()
'bar'
>>> n = re.search(u'ba[r|z|d]', 'bas')
>>> n.group()

If not, it will return None

Traceback (most recent call last):
  File "<pyshell#17>", line 1, in <module>
    n.group()
AttributeError: 'NoneType' object has no attribute 'group'

And just to print it to demonstrate again:

>>> print n
None

It seems like one closing brace is missing at ,right(a2.chdlm,2)))) from sysibm.sysdummy1 a1,

So your Query will be

select days(current date) - days(date(select concat(concat(concat(concat(left(a2.chdlm,4),'-'),substr(a2.chdlm,4,2)),'-'),right(a2.chdlm,2)))) from sysibm.sysdummy1 a1, chcart00 a2 where chstat = '05';

I needed to template a few files with minimal tooling and for me the issue with above sed -e '/../r file.txt is that it only appends the file after it prints out the rest of the match, it doesn't replace it.

This doesn't do it (all matches are replaced and pattern matching continues from same point)

#!/bin/bash

TEMPDIR=$(mktemp -d "${TMPDIR:-/tmp/}$(basename $0).XXXXXXXXXXXX")
# remove on exit
trap "rm -rf $TEMPDIR" EXIT

DCTEMPLATE=$TEMPDIR/dctemplate.txt
DCTEMPFILE=$TEMPDIR/dctempfile.txt

# template that will replace
printf "0replacement
1${SHELL} data
2anotherlinenoEOL" > $DCTEMPLATE

# test data
echo -e "xxy \n987 \nxx xx\n yz yxxyy" > $DCTEMPFILE

# print original for debug
echo "---8<--- $DCTEMPFILE"
cat $DCTEMPFILE
echo "---8<--- $DCTEMPLATE"
cat $DCTEMPLATE
echo "---8<---"

# replace 'xx' -> contents of $DCTEMPFILE
perl -e "our \$fname = '${DCTEMPLATE}';" -pe 's/xx/`cat $fname`/eg' ${DCTEMPFILE}

I was having the same error, but had a proper connection string. My problem was that the driver was not being used, therefore was optimized out of the compiled war.

Be sure to import the driver:

import com.microsoft.sqlserver.jdbc.SQLServerDriver;

And then to force it to be included in the final war, you can do something like this:

Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");

That line is in the original question. This will also work:

SQLServerDriver driver = new SQLServerDriver();

Try this

from threading import Thread

def fun1():
    print("Working1")
def fun2():
    print("Working2")

t1 = Thread(target=fun1)
t2 = Thread(target=fun2)

t1.start()
t2.start()

The best way to access files from resource folder inside a jar is it to use the InputStream via getResourceAsStream. If you still need a the resource as a file instance you can copy the resource as a stream into a temporary file (the temp file will be deleted when the JVM exits):

public static File getResourceAsFile(String resourcePath) {
    try {
        InputStream in = ClassLoader.getSystemClassLoader().getResourceAsStream(resourcePath);
        if (in == null) {
            return null;
        }

        File tempFile = File.createTempFile(String.valueOf(in.hashCode()), ".tmp");
        tempFile.deleteOnExit();

        try (FileOutputStream out = new FileOutputStream(tempFile)) {
            //copy stream
            byte[] buffer = new byte[1024];
            int bytesRead;
            while ((bytesRead = in.read(buffer)) != -1) {
                out.write(buffer, 0, bytesRead);
            }
        }
        return tempFile;
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
}

A better alternative is provided in ES6 using Sets. So, instead of declaring Arrays, it is recommended to use Sets if you need to have an array that shouldn't add duplicates.

var array = new Set();
array.add(1);
array.add(2);
array.add(3);

console.log(array);
// Prints: Set(3) {1, 2, 3}

array.add(2); // does not add any new element

console.log(array);
// Still Prints: Set(3) {1, 2, 3}

For those who develop in Android, use TextUtils.

String items = TextUtils.join("", arr);

Assuming arr is of type String[] arr= {"1","2","3"};

The output would be 123

so do the following edit my.cnf:

[mysqld]
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/English
bind-address = xxx.xxx.xxx.xxx
# skip-networking

after edit hit service mysqld restart

login into mysql and hit this query:

GRANT ALL ON foo.* TO bar@'xxx.xxx.xxx.xxx' IDENTIFIED BY 'PASSWORD';

thats it make sure your iptables allow connection from 3306 if not put the following:

iptables -A INPUT -i lo -p tcp --dport 3306 -j ACCEPT

iptables -A OUTPUT -p tcp --sport 3306 -j ACCEPT

Use document.location object and its host or hostname properties.

alert(document.location.hostname); // alerts "stackoverflow.com"

Collections.synchronizedMap() guarantees that each atomic operation you want to run on the map will be synchronized.

Running two (or more) operations on the map however, must be synchronized in a block. So yes - you are synchronizing correctly.

leftclickben answer worked for me, but I wanted a path from a given node back up the tree to the root, and these seemed to be going the other way, down the tree. So, I had to flip some of the fields around and renamed for clarity, and this works for me, in case this is what anyone else wants too--

item | parent
-------------
1    | null
2    | 1
3    | 1
4    | 2
5    | 4
6    | 3

and

select t.item_id as item, @pv:=t.parent as parent
from (select * from item_tree order by item_id desc) t
join
(select @pv:=6)tmp
where t.item_id=@pv;

gives:

item | parent
-------------
6    | 3
3    | 1
1    | null

Check your .gitattributes.

In my case I have *.js text eol=lf in it and git option core.autocrlf was true.

It brings me to the situation when git autoconverts my files line endings and prevent me to fix it and even git reset --hard HEAD didn`t do anything.

I fix it with commenting *.js text eol=lf in my .gitattributes and uncommented it after it.

Looks like it just git magic.

Based on your application type/size/load/no. of users ..etc - u can keep following as your production properties

spring.datasource.tomcat.initial-size=50
spring.datasource.tomcat.max-wait=20000
spring.datasource.tomcat.max-active=300
spring.datasource.tomcat.max-idle=150
spring.datasource.tomcat.min-idle=8
spring.datasource.tomcat.default-auto-commit=true

You are exceeding the length of int datatype. You can use UNSIGNED attribute to support that value.

SIGNED INT can support till 2147483647 and with UNSIGNED INT allows double than this. After this you still want to save data than use CHAR or VARCHAR with length 10

In CSharp, If you create the method/function outline with it's Parms, then when you add the three forward slashes it will auto generate the summary and parms section.

So I put in:

public string myMethod(string sImput1, int iInput2)
{
}

I then put the three /// before it and Visual Studio's gave me this:

/// <summary>
/// 
/// </summary>
/// <param name="sImput1"></param>
/// <param name="iInput2"></param>
/// <returns></returns>
public string myMethod(string sImput1, int iInput2)
{
}

From Stack Overflow question What is the Python 3 equivalent of "python -m SimpleHTTPServer":

The following works for me:

python -m http.server [<portNo>]

Because I am using Python 3 the module SimpleHTTPServer has been replaced by http.server, at least in Windows.

I was a bit puzzled that norm.fit apparently only worked with the expanded list of sampled values. I tried giving it two lists of numbers, or lists of tuples, but it only appeared to flatten everything and threat the input as individual samples. Since I already have a histogram based on millions of samples, I didn't want to expand this if I didn't have to. Thankfully, the normal distribution is trivial to calculate, so...

# histogram is [(val,count)]
from math import sqrt

def normfit(hist):
    n,s,ss = univar(hist)
    mu = s/n
    var = ss/n-mu*mu
    return (mu, sqrt(var))

def univar(hist):
    n = 0
    s = 0
    ss = 0
    for v,c in hist:
        n += c
        s += c*v
        ss += c*v*v
    return n, s, ss

I'm sure this must be provided by the libraries, but as I couldn't find it anywhere, I'm posting this here instead. Feel free to point to the correct way to do it and downvote me :-)

Previously, you would do this through NPAPI plugins.

However, Google is now phasing out NPAPI for Chrome, so the preferred way to do this is using the native messaging API. The external application would have to register a native messaging host in order to exchange messages with your application.

Define static methods in the following scenarios only:

1. If you are writing utility classes and they are not supposed to be changed.
2. If the method is not using any instance variable.
3. If any operation is not dependent on instance creation.
4. If there is some code that can easily be shared by all the instance methods, extract that code into a static method.
5. If you are sure that the definition of the method will never be changed or overridden. As static methods can not be overridden.

Heh, I just wrote this (unrelated to this question):

string temp = "";
stringstream outStream;
double ratio = (currentImage->width*1.0f)/currentImage->height;
outStream << " R: " << ratio;
temp = outStream.str();

/* rest of the code */

None of the above works for me. I find that running the following sorts this issue after error (It just clears all the instances of progress bars in the background):

from tqdm import tqdm

# blah blah your code errored

tqdm._instances.clear()

This should do it, let me know if you have trouble with it:

Sub foo()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, copy what you want from x:
x.Sheets("name of copying sheet").Range("A1").Copy

'Now, paste to y worksheet:
y.Sheets("sheetname").Range("A1").PasteSpecial

'Close x:
x.Close

End Sub

Alternatively, you could just:

Sub foo2()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, transfer values from x to y:
y.Sheets("sheetname").Range("A1").Value = x.Sheets("name of copying sheet").Range("A1") 

'Close x:
x.Close

End Sub

To extend this to the entire sheet:

With x.Sheets("name of copying sheet").UsedRange
    'Now, paste to y worksheet:
    y.Sheets("sheet name").Range("A1").Resize( _
        .Rows.Count, .Columns.Count) = .Value
End With

And yet another way, store the value as a variable and write the variable to the destination:

Sub foo3()
Dim x As Workbook
Dim y As Workbook
Dim vals as Variant

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Store the value in a variable:
vals = x.Sheets("name of sheet").Range("A1").Value

'Use the variable to assign a value to the other file/sheet:
y.Sheets("sheetname").Range("A1").Value = vals 

'Close x:
x.Close

End Sub

The last method above is usually the fastest for most applications, but do note that for very large datasets (100k rows) it's observed that the Clipboard actually outperforms the array dump:

Copy/PasteSpecial vs Range.Value = Range.Value

That said, there are other considerations than just speed, and it may be the case that the performance hit on a large dataset is worth the tradeoff, to avoid interacting with the Clipboard.

Here's a short PowerShell script to do what you probably expect:

$sourceNugetExe = "https://dist.nuget.org/win-x86-commandline/latest/nuget.exe"
$targetNugetExe = "$rootPath\nuget.exe"
Invoke-WebRequest $sourceNugetExe -OutFile $targetNugetExe
Set-Alias nuget $targetNugetExe -Scope Global -Verbose

Note that Invoke-WebRequest cmdlet arrived with PowerShell v3.0. This article gives the idea.

You can search on a json object array using $.grep() like this:

var persons = {
    "person": [
        {
            "name": "Peter",
            "age": 43,
            "sex": "male"
        }, {
            "name": "Zara",
            "age": 65,
            "sex": "female"
        }
      ]
   }
};
var result = $.grep(persons.person, function(element, index) {
   return (element.name === 'Peter');
});
alert(result[0].age);

obj={};

$.each(obj, function (key, value) {
    console.log(key+ ' : ' + value); //push the object value
});

for (var i in obj) {
    nameList += "" + obj[i] + "";//display the object value
}

$("id/class").html($(nameList).length);//display the length of object.

Use the recursive switch --recursive (-R)

svn revert -R .

From C# 2.0:

private void Example(int? arg1, int? arg2)
{
    if(arg1 == null)
    {
        //do something
    }
    if(arg2 == null)
    {
        //do something else
    }
}

Just (array) is missing in your code before the simplexml object:

...

$xml   = simplexml_load_string($string, 'SimpleXMLElement', LIBXML_NOCDATA);

$array = json_decode(json_encode((array)$xml), TRUE);
                                 ^^^^^^^
...

The loop in your code is only an over-simplified example, right?

It would be better to create the PreparedStatement only once, and re-use it over and over again in the loop.

In situations where that is not possible (because it complicated the program flow too much), it is still beneficial to use a PreparedStatement, even if you use it only once, because the server-side of the work (parsing the SQL and caching the execution plan), will still be reduced.

To address the situation that you want to re-use the Java-side PreparedStatement, some JDBC drivers (such as Oracle) have a caching feature: If you create a PreparedStatement for the same SQL on the same connection, it will give you the same (cached) instance.

About multi-threading: I do not think JDBC connections can be shared across multiple threads (i.e. used concurrently by multiple threads) anyway. Every thread should get his own connection from the pool, use it, and return it to the pool again.

After making changes to the pg_hba.conf or postgresql.conf files, the cluster needs to be reloaded to pick up the changes.

From the command line: pg_ctl reload

From within a db (as superuser): select pg_reload_conf();

From PGAdmin: right-click db name, select "Reload Configuration"

Note: the reload is not sufficient for changes like enabling archiving, changing shared_buffers, etc -- those require a cluster restart.

NO NEED FOR DUMMY IN CODE
Just :

add a Reference to the Executeable Project

or/and ensure that the reference in the executeable project has "Copy Local" set to TRUE (which was my "fault") is seems that this "overwrote" the setting in the base referenced library-project...

I exported the following connection from Studio 3T:

mongodb://youn-nosql-grej-test:[email protected]:10255/admin?3t.uriVersion=2&3t.certificatePreference=RootCACert:accept_any&3t.databases=admin&3t.connectionMode=direct&3t.useClientCertPassword=false&3t.connection.name=Grej-Test&readPreference=primary&ssl=true

And I filled it in in the following screens:

yearofmoo did a great job at creating a reusable $safeApply function for us :

https://github.com/yearofmoo/AngularJS-Scope.SafeApply

Usage :

//use by itself
$scope.$safeApply();

//tell it which scope to update
$scope.$safeApply($scope);
$scope.$safeApply($anotherScope);

//pass in an update function that gets called when the digest is going on...
$scope.$safeApply(function() {

});

//pass in both a scope and a function
$scope.$safeApply($anotherScope,function() {

});

//call it on the rootScope
$rootScope.$safeApply();
$rootScope.$safeApply($rootScope);
$rootScope.$safeApply($scope);
$rootScope.$safeApply($scope, fn);
$rootScope.$safeApply(fn);

Assuming $foo is an integer:

$answer = (int) (floor(($foo + 5) / 6) * 6)

First of all, the naming convention in Kotlin for constants is the same than in java (e.g : MY_CONST_IN_UPPERCASE).

How should I create it ?

1. As a top level value (recommended)

You just have to put your const outside your class declaration.

Two possibilities : Declare your const in your class file (your const have a clear relation with your class)

private const val CONST_USED_BY_MY_CLASS = 1

class MyClass { 
    // I can use my const in my class body 
}

Create a dedicated constants.kt file where to store those global const (Here you want to use your const widely across your project) :

package com.project.constants
const val URL_PATH = "https:/"

Then you just have to import it where you need it :

import com.project.constants

MyClass {
    private fun foo() {
        val url = URL_PATH
        System.out.print(url) // https://
    }
}

2. Declare it in a companion object (or an object declaration)

This is much less cleaner because under the hood, when bytecode is generated, a useless object is created :

MyClass {
    companion object {
        private const val URL_PATH = "https://"
        const val PUBLIC_URL_PATH = "https://public" // Accessible in other project files via MyClass.PUBLIC_URL_PATH
    }
}

Even worse if you declare it as a val instead of a const (compiler will generate a useless object + a useless function) :

MyClass {
    companion object {
        val URL_PATH = "https://"
    }
}

Note :

In kotlin, const can just hold primitive types. If you want to pass a function to it, you need add the @JvmField annotation. At compile time, it will be transform as a public static final variable. But it's slower than with a primitive type. Try to avoid it.

@JvmField val foo = Foo()