Using solve with a single parameter is a request to invert a matrix. The error message is telling you that your matrix is singular and cannot be inverted.

Just tried both ways and in both ways I got generated .env file:

Composer should automatically create .env file. In the post-create-project-cmd section of the composer.json you can find:

"post-create-project-cmd": [
  "php -r \"copy('.env.example', '.env');\"",
  "php artisan key:generate"
]

Both ways use the same composer.json file, so there shoudn't be any difference.

I suggest you to update laravel/installer to the last version: 1.2 and try again:

composer global require "laravel/installer=~1.2"

You can always generate .env file manually by running:

cp .env.example .env
php artisan key:generate

The hosting environment comes from the ASPNET_ENV environment variable, which is available during Startup using the IHostingEnvironment.IsEnvironment extension method, or one of the corresponding convenience methods of IsDevelopment or IsProduction. Either save what you need in Startup(), or in ConfigureServices call:

var foo = Environment.GetEnvironmentVariable("ASPNET_ENV");

Bootstrap 3

Try this. Simple solution with no dependencies.

$('[data-toggle="collapse"]').click(function() {
  $('.collapse.in').collapse('hide')
});

There is a general problem: it's hard to mock time. Also, it's really bad practice to place long running/waiting code in a unit test.

So, for making a scheduling API testable, I used an interface with a real and a mock implementation like this:

public interface Clock {
    
    public long getCurrentMillis();
    
    public void sleep(long millis) throws InterruptedException;
    
}

public static class SystemClock implements Clock {

    @Override
    public long getCurrentMillis() {
        return System.currentTimeMillis();
    }

    @Override
    public void sleep(long millis) throws InterruptedException {
        Thread.sleep(millis);
    }
    
}

public static class MockClock implements Clock {

    private final AtomicLong currentTime = new AtomicLong(0);
    

    public MockClock() {
        this(System.currentTimeMillis());
    }
    
    public MockClock(long currentTime) {
        this.currentTime.set(currentTime);
    }
    

    @Override
    public long getCurrentMillis() {
        return currentTime.addAndGet(5);
    }

    @Override
    public void sleep(long millis) {
        currentTime.addAndGet(millis);
    }
    
}

With this, you could imitate time in your test:

@Test
public void testExpiration() {
    MockClock clock = new MockClock();
    SomeCacheObject sco = new SomeCacheObject();
    sco.putWithExpiration("foo", 1000);
    clock.sleep(2000) // wait for 2 seconds
    assertNull(sco.getIfNotExpired("foo"));
}

An advanced multi-threading mock for Clock is much more complex, of course, but you can make it with ThreadLocal references and a good time synchronization strategy, for example.

For put method we have:

const putMethod = {
 method: 'PUT', // Method itself
 headers: {
  'Content-type': 'application/json; charset=UTF-8' // Indicates the content 
 },
 body: JSON.stringify(someData) // We send data in JSON format
}

// make the HTTP put request using fetch api
fetch(url, putMethod)
.then(response => response.json())
.then(data => console.log(data)) // Manipulate the data retrieved back, if we want to do something with it
.catch(err => console.log(err)) // Do something with the error

Example for someData, we can have some input fields or whatever you need:

const someData = {
 title: document.querySelector(TitleInput).value,
 body: document.querySelector(BodyInput).value
}

And in our data base will have this in json format:

{
 "posts": [
   "id": 1,
   "title": "Some Title", // what we typed in the title input field
   "body": "Some Body", // what we typed in the body input field
 ]
}

For delete method we have:

const deleteMethod = {
 method: 'DELETE', // Method itself
 headers: {
  'Content-type': 'application/json; charset=UTF-8' // Indicates the content 
 },
 // No need to have body, because we don't send nothing to the server.
}
// Make the HTTP Delete call using fetch api
fetch(url, deleteMethod) 
.then(response => response.json())
.then(data => console.log(data)) // Manipulate the data retrieved back, if we want to do something with it
.catch(err => console.log(err)) // Do something with the error

In the url we need to type the id of the of deletion: https://www.someapi/id

What's this "other information"? An IP address?

In PHP, you use $_SERVER['REMOTE_ADDR'] to get the IP address of the remote client, then you can use gethostbyaddr() to try and conver that IP into a hostname - but not all IPs have a reverse mapping configured.

If you are on python 3.3 or above then it already has a built-in function for computing log2(x)

import math
'finds log base2 of x'
answer = math.log2(x)

If you are on older version of python then you can do like this

import math
'finds log base2 of x'
answer = math.log(x)/math.log(2)

You can also use an oracle defined collection

DECLARE 
  arrayvalues sys.odcivarchar2list;
BEGIN
  arrayvalues := sys.odcivarchar2list('Matt','Joanne','Robert');
  FOR x IN ( SELECT m.column_value m_value
               FROM table(arrayvalues) m )
  LOOP
    dbms_output.put_line (x.m_value||' is a good pal');
  END LOOP;
END;

I would use in-memory array. But with the .COUNT improvement suggested by uziberia:

DECLARE
  TYPE t_people IS TABLE OF varchar2(10) INDEX BY PLS_INTEGER;
  arrayvalues t_people;
BEGIN
  SELECT *
   BULK COLLECT INTO arrayvalues
   FROM (select 'Matt' m_value from dual union all
         select 'Joanne'       from dual union all
         select 'Robert'       from dual
    )
  ;
  --
  FOR i IN 1 .. arrayvalues.COUNT
  LOOP
    dbms_output.put_line(arrayvalues(i)||' is my friend');
  END LOOP;
END;

Another solution would be to use a Hashmap like @Jchomel did here.

NB:

With Oracle 12c you can even query arrays directly now!

This can be achieved by wrapping the image and search bar in their own container and floating the image to the left with a specific width.

This takes the image out of the "flow" which means that any items rendered in normal flow will not adjust their positioning to take account of this.

To make the "in flow" searchBar appear correctly positioned to the right of the image you give it a left padding equal to the width of the image plus a gutter.

The effect is to make the image a fixed width while the rest of the container block is fluidly filled up by the search bar.

<div class="container">
  <img src="img/logo.png"/>
  <div id="searchBar">
    <input type="text" />
  </div>
</div>

and the css

.container {
  width: 100%;
}

.container img {
  width: 50px;
  float: left;
}

.searchBar {
  padding-left: 60px;
}

I was wondering, if there is any difference between RemoveAll and Except and the pros of using HashSet, so I have done quick performance check :)

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;

namespace ListRemoveTest
{
    class Program
    {
        private static Random random = new Random( (int)DateTime.Now.Ticks );

        static void Main( string[] args )
        {
            Console.WriteLine( "Be patient, generating data..." );

            List<string> list = new List<string>();
            List<string> toRemove = new List<string>();
            for( int x=0; x < 1000000; x++ )
            {
                string randString = RandomString( random.Next( 100 ) );
                list.Add( randString );
                if( random.Next( 1000 ) == 0 )
                    toRemove.Insert( 0, randString );
            }

            List<string> l1 = new List<string>( list );
            List<string> l2 = new List<string>( list );
            List<string> l3 = new List<string>( list );
            List<string> l4 = new List<string>( list );

            Console.WriteLine( "Be patient, testing..." );

            Stopwatch sw1 = Stopwatch.StartNew();
            l1.RemoveAll( toRemove.Contains );
            sw1.Stop();

            Stopwatch sw2 = Stopwatch.StartNew();
            l2.RemoveAll( new HashSet<string>( toRemove ).Contains );
            sw2.Stop();

            Stopwatch sw3 = Stopwatch.StartNew();
            l3 = l3.Except( toRemove ).ToList();
            sw3.Stop();

            Stopwatch sw4 = Stopwatch.StartNew();
            l4 = l4.Except( new HashSet<string>( toRemove ) ).ToList();
            sw3.Stop();


            Console.WriteLine( "L1.Len = {0}, Time taken: {1}ms", l1.Count, sw1.Elapsed.TotalMilliseconds );
            Console.WriteLine( "L2.Len = {0}, Time taken: {1}ms", l1.Count, sw2.Elapsed.TotalMilliseconds );
            Console.WriteLine( "L3.Len = {0}, Time taken: {1}ms", l1.Count, sw3.Elapsed.TotalMilliseconds );
            Console.WriteLine( "L4.Len = {0}, Time taken: {1}ms", l1.Count, sw3.Elapsed.TotalMilliseconds );

            Console.ReadKey();
        }


        private static string RandomString( int size )
        {
            StringBuilder builder = new StringBuilder();
            char ch;
            for( int i = 0; i < size; i++ )
            {
                ch = Convert.ToChar( Convert.ToInt32( Math.Floor( 26 * random.NextDouble() + 65 ) ) );
                builder.Append( ch );
            }

            return builder.ToString();
        }
    }
}

Results below:

Be patient, generating data...
Be patient, testing...
L1.Len = 985263, Time taken: 13411.8648ms
L2.Len = 985263, Time taken: 76.4042ms
L3.Len = 985263, Time taken: 340.6933ms
L4.Len = 985263, Time taken: 340.6933ms

As we can see, best option in that case is to use RemoveAll(HashSet)

updated:

startdate = "20.03.2014";
var new_date = moment(startdate, "DD-MM-YYYY").add(5,'days');

alert(new_date)

you can simply do like that in the html part:

<span>Heading Text</span>

and in the css you can make it as an h1 block using display:

span{
display:block;
font-size:20px;
}

you will get it as a h1 without bold ,
if you want it bold just add this to the css:

font-weight:bold;

JWPL - Java-based Wikipedia Library -- An application programming interface for Wikipedia

http://code.google.com/p/jwpl/

The error SyntaxError: Unexpected token < likely means the API endpoint didn't return JSON in its document body, such as due to a 404.

In this case, it expects to find a { (start of JSON); instead it finds a < (start of a heading element).

Successful response:

<html>
  <head></head>
  <body>
    {"foo": "bar", "baz": "qux"}
  </body>
</html>

Not-found response:

<html>
  <head></head>
  <body>
    <h1>Not Found</h1>
    <p>The requested URL was not found on the server.  If you entered the URL manually please check your spelling and try again.</p>
  </body>
</html>

Try visiting the data endpoint's URL in your browser to see what's returned.

I am assuming that you have requested for authorisation and registered your app for notification.

Here is the code to create local notifications

@available(iOS 10.0, *)
    func send_Noti()
    {
        //Create content for your notification 
        let content = UNMutableNotificationContent()
        content.title = "Test"
        content.body = "This is to test triggering of notification"

        //Use it to define trigger condition
        var date = DateComponents()
        date.calendar = Calendar.current
        date.weekday = 5 //5 means Friday
        date.hour = 14 //Hour of the day
        date.minute = 10 //Minute at which it should be sent


        let trigger = UNCalendarNotificationTrigger(dateMatching: date, repeats: true)
        let uuid = UUID().uuidString
        let req = UNNotificationRequest(identifier: uuid, content: content, trigger: trigger)

        let notificationCenter = UNUserNotificationCenter.current()
        notificationCenter.add(req) { (error) in
            print(error)
        }
    }

Box shadows can use commas to have multiple effects, just like with background images (in CSS3).

Short answer:

As written in xsd:

<xs:attribute name="minOccurs" type="xs:nonNegativeInteger" use="optional" default="1"/>
<xs:attribute name="maxOccurs" type="xs:allNNI" use="optional" default="1"/>

If you provide an attribute with number, then the number is boundary. Otherwise attribute should appear exactly once.

On Debian I needed the following packages to fix this

sudo apt install libcurl4-openssl-dev libssl-dev

@DavidG's answer is correct, but I would like to add that if you're building from the command line, the equivalent solution is to make sure that you're using the appropriate version of msbuild (in this particular case, it needs to be version 15).

Run msbuild /? to see which version you're using or where msbuild to check which location the environment takes the executable from and update (or point to the right location of) the tools if necessary.

Download the latest MSBuild tool from here.

To get country code

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

public String makeServiceCall() {
    String response = null;
    String reqUrl = "https://ipinfo.io/country";
    try {
        URL url = new URL(reqUrl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        // read the response
        InputStream in = new BufferedInputStream(conn.getInputStream());
        response = convertStreamToString(in);
    } catch (MalformedURLException e) {
        Log.e(TAG, "MalformedURLException: " + e.getMessage());
    } catch (ProtocolException e) {
        Log.e(TAG, "ProtocolException: " + e.getMessage());
    } catch (IOException e) {
        Log.e(TAG, "IOException: " + e.getMessage());
    } catch (Exception e) {
        Log.e(TAG, "Exception: " + e.getMessage());
    }
    return response;
}

Selenium provides a convenient Select class to work with select -> option constructs:

from selenium import webdriver
from selenium.webdriver.support.ui import Select

driver = webdriver.Firefox()
driver.get('url')

select = Select(driver.find_element_by_id('fruits01'))

# select by visible text
select.select_by_visible_text('Banana')

# select by value 
select.select_by_value('1')

See also:

• What is the correct way to select an using Selenium's Python WebDriver?

I second Dave's idea. I'm not always fond of pivot tables, but in this case they are pretty straightforward to use.

Here are my results:

It was so simple to create it that I have even recorded a macro in case you need to do this with VBA:

Sub Macro2()
'
' Macro2 Macro
'

'
    Range("Table1[[#All],[DATA]]").Select
    ActiveWorkbook.PivotCaches.Create(SourceType:=xlDatabase, SourceData:= _
        "Table1", Version:=xlPivotTableVersion14).CreatePivotTable TableDestination _
        :="Sheet3!R3C7", TableName:="PivotTable4", DefaultVersion:= _
        xlPivotTableVersion14
    Sheets("Sheet3").Select
    Cells(3, 7).Select
    With ActiveSheet.PivotTables("PivotTable4").PivotFields("DATA")
        .Orientation = xlRowField
        .Position = 1
    End With
    ActiveSheet.PivotTables("PivotTable4").AddDataField ActiveSheet.PivotTables( _
        "PivotTable4").PivotFields("DATA"), "Count of DATA", xlCount
End Sub

There are several valid ways already mentioned for locating the php.ini file, but if you came across this page because you want to do something with it in a bash script:

path_php_ini="$(php -i | grep 'Configuration File (php.ini) Path' | grep -oP '(?<=\=\>\s).*')" echo ${path_php_ini}

You need an additional library for code coverage, and you are going to be blown away by how powerful and easy istanbul is. Try the following, after you get your mocha tests to pass:

npm install nyc

Now, simply place the command nyc in front of your existing test command, for example:

{
  "scripts": {
    "test": "nyc mocha"
  }
}

After your DataBind():

lstDepartment.SelectedIndex = 0;  //first item

or

lstDepartment.SelectedValue = "Yourvalue"

or 
//add error checking, just an example, FindByValue may return null
lstDepartment.Items.FindByValue("Yourvalue").Selected = true;

or
//add error checking, just an example, FindByText may return null
lstDepartment.Items.FindByText("Yourvalue").Selected = true;

I also had the same problem after installing 32 bit version of java it solved.

Building on the answer posted by maxspan, I've put together a minimal sample project on GitHub showing all the working parts.

Basically, we just add an Application_Error method to global.asax.cs to intercept the exception and give us an opportunity to redirect (or more correctly, transfer request) to a custom error page.

    protected void Application_Error(Object sender, EventArgs e)
    {
        // See http://stackoverflow.com/questions/13905164/how-to-make-custom-error-pages-work-in-asp-net-mvc-4
        // for additional context on use of this technique

        var exception = Server.GetLastError();
        if (exception != null)
        {
            // This would be a good place to log any relevant details about the exception.
            // Since we are going to pass exception information to our error page via querystring,
            // it will only be practical to issue a short message. Further detail would have to be logged somewhere.

            // This will invoke our error page, passing the exception message via querystring parameter
            // Note that we chose to use Server.TransferRequest, which is only supported in IIS 7 and above.
            // As an alternative, Response.Redirect could be used instead.
            // Server.Transfer does not work (see https://support.microsoft.com/en-us/kb/320439 )
            Server.TransferRequest("~/Error?Message=" + exception.Message);
        }

    }

Error Controller:

/// <summary>
/// This controller exists to provide the error page
/// </summary>
public class ErrorController : Controller
{
    /// <summary>
    /// This action represents the error page
    /// </summary>
    /// <param name="Message">Error message to be displayed (provided via querystring parameter - a design choice)</param>
    /// <returns></returns>
    public ActionResult Index(string Message)
    {
        // We choose to use the ViewBag to communicate the error message to the view
        ViewBag.Message = Message;
        return View();
    }

}

Error page View:

<!DOCTYPE html>

<html>
<head>
    <title>Error</title>
</head>
<body>

    <h2>My Error</h2>
    <p>@ViewBag.Message</p>
</body>
</html>

Nothing else is involved, other than disabling/removing filters.Add(new HandleErrorAttribute()) in FilterConfig.cs

public class FilterConfig
{
    public static void RegisterGlobalFilters(GlobalFilterCollection filters)
    {
        //filters.Add(new HandleErrorAttribute()); // <== disable/remove
    }
}

While very simple to implement, the one drawback I see in this approach is using querystring to deliver exception information to the target error page.

Carry Flag

The rules for turning on the carry flag in binary/integer math are two:

1. The carry flag is set if the addition of two numbers causes a carry out of the most significant (leftmost) bits added. 1111 + 0001 = 0000 (carry flag is turned on)

2. The carry (borrow) flag is also set if the subtraction of two numbers requires a borrow into the most significant (leftmost) bits subtracted. 0000 - 0001 = 1111 (carry flag is turned on) Otherwise, the carry flag is turned off (zero).

   • 0111 + 0001 = 1000 (carry flag is turned off [zero])
   • 1000 - 0001 = 0111 (carry flag is turned off [zero])

In unsigned arithmetic, watch the carry flag to detect errors.

In signed arithmetic, the carry flag tells you nothing interesting.

Overflow Flag

The rules for turning on the overflow flag in binary/integer math are two:

1. If the sum of two numbers with the sign bits off yields a result number with the sign bit on, the "overflow" flag is turned on. 0100 + 0100 = 1000 (overflow flag is turned on)

2. If the sum of two numbers with the sign bits on yields a result number with the sign bit off, the "overflow" flag is turned on. 1000 + 1000 = 0000 (overflow flag is turned on)

Otherwise the "overflow" flag is turned off

• 0100 + 0001 = 0101 (overflow flag is turned off)
• 0110 + 1001 = 1111 (overflow flag turned off)
• 1000 + 0001 = 1001 (overflow flag turned off)
• 1100 + 1100 = 1000 (overflow flag is turned off)

Note that you only need to look at the sign bits (leftmost) of the three numbers to decide if the overflow flag is turned on or off.

If you are doing two's complement (signed) arithmetic, overflow flag on means the answer is wrong - you added two positive numbers and got a negative, or you added two negative numbers and got a positive.

If you are doing unsigned arithmetic, the overflow flag means nothing and should be ignored.

For more clarification please refer: http://teaching.idallen.com/dat2343/10f/notes/040_overflow.txt

There are differences between #header .callout and #header.callout in css.

Here is the "plain English" of #header .callout:
Select all elements with the class name callout that are descendants of the element with an ID of header.

And #header.callout means:
Select the element which has an ID of header and also a class name of callout.

You can read more here css tricks

@bku_drytt's solution didn't do it for me.

I solved it by additionally changing every occurence of 14.0 to 12.0 and v140 to v120 manually in the .vcxproj files.

Then it compiled!

Since in openpyxl 2.6.1, it requires the column letter, not the column number, when setting the width.

 for column in sheet.columns:
    length = max(len(str(cell.value)) for cell in column)
    length = length if length <= 16 else 16
    sheet.column_dimensions[column[0].column_letter].width = length

In Windows open the Run window (Win + R):

C:\Program Files (x86)\Google\Chrome\Application\chrome.exe  --allow-running-insecure-content

In OS-X Terminal.app run the following command ⌘+space:

open /Applications/Google\ Chrome.app --args --allow-running-insecure-content

Note: You seem to be able to add the argument --allow-running-insecure-content to bypass this for development. But its not a recommended solution.

You can Try This

Application.Exit();

Yes, bool. It's not exactly the same -- '0' is True, but None, False, [], 0, 0.0, and "" are all False.

bool is used implicitly when you evaluate an object in a condition like an if or while statement, conditional expression, or with a boolean operator.

If you wanted to handle strings containing numbers as PHP does, you could do something like:

def empty(value):
    try:
        value = float(value)
    except ValueError:
        pass
    return bool(value)

The asker commented:

I figure that if I understand a problem well enough to write a program that can figure it out, I don't need to do the work manually.

If he's writing a math expression solver as a learning exercise, using eval() isn't going to help. Plus it's terrible design.

You might consider making a calculator using Reverse Polish Notation instead of standard math notation. It simplifies the parsing considerably. It would still be a good exercise

For each conflicted file you get, you can specify

git checkout --ours -- <paths>
# or
git checkout --theirs -- <paths>

From the git checkout docs

git checkout [-f|--ours|--theirs|-m|--conflict=<style>] [<tree-ish>] [--] <paths>...

--ours
--theirs
When checking out paths from the index, check out stage #2 (ours) or #3 (theirs) for unmerged paths.

The index may contain unmerged entries because of a previous failed merge. By default, if you try to check out such an entry from the index, the checkout operation will fail and nothing will be checked out. Using -f will ignore these unmerged entries. The contents from a specific side of the merge can be checked out of the index by using --ours or --theirs. With -m, changes made to the working tree file can be discarded to re-create the original conflicted merge result.

Use pd.to_numeric with errors='coerce'

# Setup
s = pd.Series(['1', '2', '3', '4', '.'])
s

0    1
1    2
2    3
3    4
4    .
dtype: object

pd.to_numeric(s, errors='coerce')

0    1.0
1    2.0
2    3.0
3    4.0
4    NaN
dtype: float64

If you need the NaNs filled in, use Series.fillna.

pd.to_numeric(s, errors='coerce').fillna(0, downcast='infer')

0    1
1    2
2    3
3    4
4    0
dtype: float64

Note, downcast='infer' will attempt to downcast floats to integers where possible. Remove the argument if you don't want that.

From v0.24+, pandas introduces a Nullable Integer type, which allows integers to coexist with NaNs. If you have integers in your column, you can use

pd.__version__
# '0.24.1'

pd.to_numeric(s, errors='coerce').astype('Int32')

0      1
1      2
2      3
3      4
4    NaN
dtype: Int32

There are other options to choose from as well, read the docs for more.

Extension for DataFrames

If you need to extend this to DataFrames, you will need to apply it to each row. You can do this using DataFrame.apply.

# Setup.
np.random.seed(0)
df = pd.DataFrame({
    'A' : np.random.choice(10, 5), 
    'C' : np.random.choice(10, 5), 
    'B' : ['1', '###', '...', 50, '234'], 
    'D' : ['23', '1', '...', '268', '$$']}
)[list('ABCD')]
df

   A    B  C    D
0  5    1  9   23
1  0  ###  3    1
2  3  ...  5  ...
3  3   50  2  268
4  7  234  4   $$

df.dtypes

A     int64
B    object
C     int64
D    object
dtype: object

df2 = df.apply(pd.to_numeric, errors='coerce')
df2

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

df2.dtypes

A      int64
B    float64
C      int64
D    float64
dtype: object

You can also do this with DataFrame.transform; although my tests indicate this is marginally slower:

df.transform(pd.to_numeric, errors='coerce')

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

If you have many columns (numeric; non-numeric), you can make this a little more performant by applying pd.to_numeric on the non-numeric columns only.

df.dtypes.eq(object)

A    False
B     True
C    False
D     True
dtype: bool

cols = df.columns[df.dtypes.eq(object)]
# Actually, `cols` can be any list of columns you need to convert.
cols
# Index(['B', 'D'], dtype='object')

df[cols] = df[cols].apply(pd.to_numeric, errors='coerce')
# Alternatively,
# for c in cols:
#     df[c] = pd.to_numeric(df[c], errors='coerce')

df

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

Applying pd.to_numeric along the columns (i.e., axis=0, the default) should be slightly faster for long DataFrames.

Write-back and write-through describe policies when a write hit occurs, that is when the cache has the requested information. In these examples, we assume a single processor is writing to main memory with a cache.

Write-through: The information is written to the cache and memory, and the write finishes when both have finished. This has the advantage of being simpler to implement, and the main memory is always consistent (in sync) with the cache (for the uniprocessor case - if some other device modifies main memory, then this policy is not enough), and a read miss never results in writes to main memory. The obvious disadvantage is that every write hit has to do two writes, one of which accesses slower main memory.

Write-back: The information is written to a block in the cache. The modified cache block is only written to memory when it is replaced (in effect, a lazy write). A special bit for each cache block, the dirty bit, marks whether or not the cache block has been modified while in the cache. If the dirty bit is not set, the cache block is "clean" and a write miss does not have to write the block to memory.

The advantage is that writes can occur at the speed of the cache, and if writing within the same block only one write to main memory is needed (when the previous block is being replaced). The disadvantages are that this protocol is harder to implement, main memory can be not consistent (not in sync) with the cache, and reads that result in replacement may cause writes of dirty blocks to main memory.

The policies for a write miss are detailed in my first link.

These protocols don't take care of the cases with multiple processors and multiple caches, as is common in modern processors. For this, more complicated cache coherence mechanisms are required. Write-through caches have simpler protocols since a write to the cache is immediately reflected in memory.

Good resources:

• http://web.cs.iastate.edu/~prabhu/Tutorial/CACHE/interac.html (what my post is largely based on)
• http://www.cs.cornell.edu/courses/cs3410/2013sp/lecture/18-caches3-w.pdf

You can call pack_forget to remove a widget (if you use pack to add it to the window).

Example:

from tkinter import *

root = Tk()

b = Button(root, text="Delete me", command=lambda: b.pack_forget())
b.pack()

root.mainloop()

If you use pack_forget, you can later show the widget again calling pack again. If you want to permanently delete it, call destroy on the widget (then you won't be able to re-add it).

If you use the grid method, you can use grid_forget or grid_remove to hide the widget.

try this within your if statements:

Application.DisplayAlerts = False
Worksheets(“Sheetname”).Delete
Application.DisplayAlerts = True

This might not be a popular option, but sometimes the scripts end up being distributed in various chunks, in that case I've found this to be a quick fix

if(window.onload != null){var f1 = window.onload;}
window.onload=function(){
    //do something

    if(f1!=null){f1();}
}

then somewhere else...

if(window.onload != null){var f2 = window.onload;}
window.onload=function(){
    //do something else

    if(f2!=null){f2();}
}

this will update the onload function and chain as needed

By default node does not look inside the /usr/local/lib/node_module for loading global modules. Refer the module loading explained in http://nodejs.org/api/modules.html#modules_loading_from_the_global_folders

So either you have to 1)add the /usr/local/lib/node_module to NODE_PATH and export it or 2)copy the installed node modules to /usr/local/lib/node . (As explained in the link for loading module node will search in this path and will work)

In case it's useful to anyone. For AngularJS 1.5x I wanted to set CSRF for all requests and I found that when I did this:

$httpProvider.defaults.headers.get = { 'CSRF-Token': afToken }; 
$httpProvider.defaults.headers.put = { 'CSRF-Token': afToken };
$httpProvider.defaults.headers.post = { 'CSRF-Token': afToken }; 

Angular removed the content type so I had to add this:

$httpProvider.defaults.headers.common = { "Content-Type": "application/json"};

Otherwise I get a 415 media type error.

So I am doing this to configure my application for all requests:

angular.module("myapp.maintenance", [])
    .controller('maintenanceCtrl', MaintenanceCtrl)
    .directive('convertToNumber', ConvertToNumber)
    .config(configure);

MaintenanceCtrl.$inject = ["$scope", "$http", "$sce", "$window", "$document", "$timeout", "$filter", 'alertService'];
configure.$inject = ["$httpProvider"];

// configure the header tokens for  CSRF for http operations in this module
function configure($httpProvider) {

    const afToken = angular.element('input[id="__AntiForgeryToken"]').attr('value');

    $httpProvider.defaults.headers.get = { 'CSRF-Token': afToken }; // only added for GET
    $httpProvider.defaults.headers.put = { 'CSRF-Token': afToken }; // added for PUT
    $httpProvider.defaults.headers.post = { 'CSRF-Token': afToken }; // added for POST

    // for some reason if we do the above we have to set the default content type for all 
    // looks like angular clears it when we add our own headers
    $httpProvider.defaults.headers.common = { "Content-Type": "application/json" };

}

None of the solutions above were working for me. My workaround was to open the on-screen keyboard using the system settings (press Windows key and search for "keyboard" to find them). Once that's open you can click the Insert key on it.

You can use this   or  

It works on Visual Studio

Create database link NAME connect to USERNAME identified by PASSWORD using 'SID';

Specify SHARED to use a single network connection to create a public database link that can be shared among multiple users. If you specify SHARED, you must also specify the dblink_authentication clause.

Specify PUBLIC to create a public database link available to all users. If you omit this clause, the database link is private and is available only to you.

Swift 3.0

AsynchonousRequest

let urlString = "http://heyhttp.org/me.json"
var request = URLRequest(url: URL(string: urlString)!)
let session = URLSession.shared

session.dataTask(with: request) {data, response, error in
  if error != nil {
    print(error!.localizedDescription)
    return
  }

  do {
    let jsonResult: NSDictionary? = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as? NSDictionary
    print("Synchronous\(jsonResult)")
  } catch {
    print(error.localizedDescription)
  }
}.resume()

Assuming that your original dataset is similar to the one you created (i.e. with NA as character. You could specify na.strings while reading the data using read.table. But, I guess NAs would be detected automatically.

The price column is factor which needs to be converted to numeric class. When you use as.numeric, all the non-numeric elements (i.e. "NA", FALSE) gets coerced to NA) with a warning.

library(dplyr)
df %>%
     mutate(price=as.numeric(as.character(price))) %>%  
     group_by(company, year, product) %>%
     summarise(total.count=n(), 
               count=sum(is.na(price)), 
               avg.price=mean(price,na.rm=TRUE),
               max.price=max(price, na.rm=TRUE))

data

I am using the same dataset (except the ... row) that was showed.

df = tbl_df(data.frame(company=c("Acme", "Meca", "Emca", "Acme", "Meca","Emca"),
 year=c("2011", "2010", "2009", "2011", "2010", "2013"), product=c("Wrench", "Hammer",
 "Sonic Screwdriver", "Fairy Dust", "Kindness", "Helping Hand"), price=c("5.67",
 "7.12", "12.99", "10.99", "NA",FALSE)))

You can simply use setInterval to create such timer in Angular, Use this Code for timer -

timeLeft: number = 60;
  interval;

startTimer() {
    this.interval = setInterval(() => {
      if(this.timeLeft > 0) {
        this.timeLeft--;
      } else {
        this.timeLeft = 60;
      }
    },1000)
  }

  pauseTimer() {
    clearInterval(this.interval);
  }

<button (click)='startTimer()'>Start Timer</button>
<button (click)='pauseTimer()'>Pause</button>

<p>{{timeLeft}} Seconds Left....</p>

Working Example

Another way using Observable timer like below -

import { timer } from 'rxjs';

observableTimer() {
    const source = timer(1000, 2000);
    const abc = source.subscribe(val => {
      console.log(val, '-');
      this.subscribeTimer = this.timeLeft - val;
    });
  }

<p (click)="observableTimer()">Start Observable timer</p> {{subscribeTimer}}

Working Example

For more information read here

java.util.UUID.randomUUID();

#include<iostream>
using namespace std;
int add(int &number);

int main ()
{
            int number;
            int result;
            number=5;
            cout << "The value of the variable number before calling the function : " << number << endl;
            result=add(&number);
            cout << "The value of the variable number after the function is returned : " << number << endl;
            cout << "The value of result : " << result << endl;
            return(0);
}

int add(int &p)
{
            *p=*p+100;
            return(*p);
}

This is invalid code on several counts. Running it through g++ gives:

crap.cpp: In function ‘int main()’:
crap.cpp:11: error: invalid initialization of non-const reference of type ‘int&’ from a temporary of type ‘int*’
crap.cpp:3: error: in passing argument 1 of ‘int add(int&)’
crap.cpp: In function ‘int add(int&)’:
crap.cpp:19: error: invalid type argument of ‘unary *’
crap.cpp:19: error: invalid type argument of ‘unary *’
crap.cpp:20: error: invalid type argument of ‘unary *’

A valid version of the code reads:

#include<iostream>
using namespace std;
int add(int &number);

int main ()
{
            int number;
            int result;
            number=5;
            cout << "The value of the variable number before calling the function : " << number << endl;
            result=add(number);
            cout << "The value of the variable number after the function is returned : " << number << endl;
            cout << "The value of result : " << result << endl;
            return(0);
}

int add(int &p)
{
            p=p+100;
            return p;
}

What is happening here is that you are passing a variable "as is" to your function. This is roughly equivalent to:

int add(int *p)
{
      *p=*p+100;
      return *p;
}

However, passing a reference to a function ensures that you cannot do things like pointer arithmetic with the reference. For example:

int add(int &p)
{
            *p=*p+100;
            return p;
}

is invalid.

If you must use a pointer to a reference, that has to be done explicitly:

int add(int &p)
{
                    int* i = &p;
            i=i+100L;
            return *i;
}

Which on a test run gives (as expected) junk output:

The value of the variable number before calling the function : 5
The value of the variable number after the function is returned : 5
The value of result : 1399090792

This is not your answer and this is an alternate way to process the form submission

$('.signinform').click(function(e) { 
      e.preventDefault();
      $.ajax({
      type: "POST",
      url: 'index.php/user/signin', // target element(s) to be updated with server response 
      dataType:'json',
      success : function(response){ console.log(response); alert(response)}
     });
}); 

@Blair Conrad said static variables declared inside the class definition, but not inside a method are class or "static" variables:

>>> class Test(object):
...     i = 3
...
>>> Test.i
3

There are a few gotcha's here. Carrying on from the example above:

>>> t = Test()
>>> t.i     # "static" variable accessed via instance
3
>>> t.i = 5 # but if we assign to the instance ...
>>> Test.i  # we have not changed the "static" variable
3
>>> t.i     # we have overwritten Test.i on t by creating a new attribute t.i
5
>>> Test.i = 6 # to change the "static" variable we do it by assigning to the class
>>> t.i
5
>>> Test.i
6
>>> u = Test()
>>> u.i
6           # changes to t do not affect new instances of Test

# Namespaces are one honking great idea -- let's do more of those!
>>> Test.__dict__
{'i': 6, ...}
>>> t.__dict__
{'i': 5}
>>> u.__dict__
{}

Notice how the instance variable t.i got out of sync with the "static" class variable when the attribute i was set directly on t. This is because i was re-bound within the t namespace, which is distinct from the Test namespace. If you want to change the value of a "static" variable, you must change it within the scope (or object) where it was originally defined. I put "static" in quotes because Python does not really have static variables in the sense that C++ and Java do.

Although it doesn't say anything specific about static variables or methods, the Python tutorial has some relevant information on classes and class objects.

@Steve Johnson also answered regarding static methods, also documented under "Built-in Functions" in the Python Library Reference.

class Test(object):
    @staticmethod
    def f(arg1, arg2, ...):
        ...

@beid also mentioned classmethod, which is similar to staticmethod. A classmethod's first argument is the class object. Example:

class Test(object):
    i = 3 # class (or static) variable
    @classmethod
    def g(cls, arg):
        # here we can use 'cls' instead of the class name (Test)
        if arg > cls.i:
            cls.i = arg # would be the same as Test.i = arg1

Here is an example of a drawable that will be white by default, black when pressed:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <shape>
            <solid
                android:color="#1E669B"/>
            <stroke
                android:width="2dp"
                android:color="#1B5E91"/>
            <corners
                android:radius="6dp"/>
            <padding
                android:bottom="10dp"
                android:left="10dp"
                android:right="10dp"
                android:top="10dp"/>
        </shape>

    </item>
    <item>
        <shape>
            <gradient
                android:angle="270"
                android:endColor="#1E669B"
                android:startColor="#1E669B"/>
            <stroke
                android:width="4dp"
                android:color="#1B5E91"/>
            <corners
                android:radius="7dp"/>
            <padding
                android:bottom="10dp"
                android:left="10dp"
                android:right="10dp"
                android:top="10dp"/>
        </shape>
    </item>
</selector>

As already specified we add to the AppServiceProvider.php in App/Providers

use Illuminate\Support\Facades\Schema;  // add this

/**
 * Bootstrap any application services.
 *
 * @return void
 */
public function boot()
{
    Schema::defaultStringLength(191); // also this line
}

you can see more details in the link bellow (search for "Index Lengths & MySQL / MariaDB") https://laravel.com/docs/5.5/migrations

BUT WELL THAT's not what I published all about! the thing is even when doing the above you will likely to get another error (that's when you run php artisan migrate command and because of the problem of the length, the operation will likely stuck in the middle. solution is below, and the user table is likely created without the rest or not totally correctly) we need to roll back. the default roll back will not work. because the operation of migration didn't like finish. you need to delete the new created tables in the database manually.

we can do it using tinker as in below:

L:\todos> php artisan tinker

Psy Shell v0.8.15 (PHP 7.1.10 — cli) by Justin Hileman

>>> Schema::drop('users')

=> null

I myself had a problem with users table.

after that you're good to go

php artisan migrate:rollback

php artisan migrate

Going to answer this myself (correct me if I'm wrong):

It is not possible to iterate over a group of rows (like an array) in Excel without VBA installed / macros enabled.

Doing alist = [] does not clear the list, just creates an empty list and binds it to the variable alist. The old list will still exist if it had other variable bindings.

To actually clear a list in-place, you can use any of these ways:

1. alist.clear() # Python 3.3+, most obvious
2. del alist[:]
3. alist[:] = []
4. alist *= 0 # fastest

See the Mutable Sequence Types documentation page for more details.

take a look at shutil. shutil.copyfile(src, dst) will copy a file to another file.

Note that shutil.copyfile will not create directories that do not already exist. for that, use os.makedirs

Use the .Select() after grouping:

var agencyContracts = _agencyContractsRepository.AgencyContracts
    .GroupBy(ac => new
                   {
                       ac.AgencyContractID, // required by your view model. should be omited
                                            // in most cases because group by primary key
                                            // makes no sense.
                       ac.AgencyID,
                       ac.VendorID,
                       ac.RegionID
                   })
    .Select(ac => new AgencyContractViewModel
                   {
                       AgencyContractID = ac.Key.AgencyContractID,
                       AgencyId = ac.Key.AgencyID,
                       VendorId = ac.Key.VendorID,
                       RegionId = ac.Key.RegionID,
                       Amount = ac.Sum(acs => acs.Amount),
                       Fee = ac.Sum(acs => acs.Fee)
                   });

If you're interested in just the values for one particular key, you might find this approach useful:

function valuelist($array, $array_column) {
    $return = array();
    foreach($array AS $row){
        $return[]=$row[$array_column];
    };
    return $return;
};

Example:

Given $get_role_action=

array(3) {
  [0]=>
  array(2) {
    ["ACTION_CD"]=>
    string(12) "ADD_DOCUMENT"
    ["ACTION_REASON"]=>
    NULL
  }
  [1]=>
  array(2) {
    ["ACTION_CD"]=>
    string(13) "LINK_DOCUMENT"
    ["ACTION_REASON"]=>
    NULL
  }
  [2]=>
  array(2) {
    ["ACTION_CD"]=>
    string(15) "UNLINK_DOCUMENT"
    ["ACTION_REASON"]=>
    NULL
  }
}

than $variables['role_action_list']=valuelist($get_role_action, 'ACTION_CD'); would result in:

$variables["role_action_list"]=>
  array(3) {
    [0]=>
    string(12) "ADD_DOCUMENT"
    [1]=>
    string(13) "LINK_DOCUMENT"
    [2]=>
    string(15) "UNLINK_DOCUMENT"
  }

From there you can perform value look-ups like so:

if( in_array('ADD_DOCUMENT', $variables['role_action_list']) ){
    //do something
};

Create the reference of image....

UIImage *rainyImage = [UIImage imageNamed:@"rainy.jpg"];

displaying image in image view... imagedisplay is reference of imageview:

imagedisplay.image = rainyImage;

convert it into NSData by passing UIImage reference and provide compression quality in float values:

NSData *imgData = UIImageJPEGRepresentation(rainyImage, 0.9);

Short Code

public class DB {

    public static Connection c;

    public static Connection getConnection() throws Exception {
        if (c == null) {
            Class.forName("com.mysql.jdbc.Driver");
            c =DriverManager.getConnection("jdbc:mysql://localhost:3306/DATABASE", "USERNAME", "Password");
        }
        return c;
    }

    // Send data TO Database
    public static void setData(String sql) throws Exception {
        DB.getConnection().createStatement().executeUpdate(sql);
    }

    // Get Data From Database
    public static ResultSet getData(String sql) throws Exception {
        ResultSet rs = DB.getConnection().createStatement().executeQuery(sql);
        return rs;
    }
}

Numbers have higher precedence than strings so of course the + operators want to convert your strings into numbers before adding.

You could do:

print 'There are ' + CONVERT(varchar(10),@Number) +
      ' alias combinations did not match a record'

or use the (rather limited) formatting facilities of RAISERROR:

RAISERROR('There are %i alias combinations did not match a record',10,1,@Number)
WITH NOWAIT

If you tried all of above and the problem is still not solved then make sure that pushed branch name is unique and not exists in remotes. Error message might be misleading.

Code to convert DECIMAL -to-> BINARY, OCTAL, HEXADECIMAL

public class ConvertBase10ToBaseX {
    enum Base {
        /**
         * Integer is represented in 32 bit in 32/64 bit machine.
         * There we can split this integer no of bits into multiples of 1,2,4,8,16 bits
         */
        BASE2(1,1,32), BASE4(3,2,16), BASE8(7,3,11)/* OCTAL*/, /*BASE10(3,2),*/ 
        BASE16(15, 4, 8){       
            public String getFormattedValue(int val){
                switch(val) {
                case 10:
                    return "A";
                case 11:
                    return "B";
                case 12:
                    return "C";
                case 13:
                    return "D";
                case 14:
                    return "E";
                case 15:
                    return "F";
                default:
                    return "" + val;
                }

            }
        }, /*BASE32(31,5,1),*/ BASE256(255, 8, 4), /*BASE512(511,9),*/ Base65536(65535, 16, 2);

        private int LEVEL_0_MASK;
        private int LEVEL_1_ROTATION;
        private int MAX_ROTATION;

        Base(int levelZeroMask, int levelOneRotation, int maxPossibleRotation) {
            this.LEVEL_0_MASK = levelZeroMask;
            this.LEVEL_1_ROTATION = levelOneRotation;
            this.MAX_ROTATION = maxPossibleRotation;
        }

        int getLevelZeroMask(){
            return LEVEL_0_MASK;
        }
        int getLevelOneRotation(){
            return LEVEL_1_ROTATION;
        }
        int getMaxRotation(){
            return MAX_ROTATION;
        }
        String getFormattedValue(int val){
            return "" + val;
        }
    }

    public void getBaseXValueOn(Base base, int on) {
        forwardPrint(base, on);
    }

    private void forwardPrint(Base base, int on) {

        int rotation = base.getLevelOneRotation();
        int mask = base.getLevelZeroMask();
        int maxRotation = base.getMaxRotation();
        boolean valueFound = false;

        for(int level = maxRotation; level >= 2; level--) {
            int rotation1 = (level-1) * rotation;
            int mask1 = mask << rotation1 ;
            if((on & mask1) > 0 ) {
                valueFound = true;
            }
            if(valueFound)
            System.out.print(base.getFormattedValue((on & mask1) >>> rotation1));
        }
        System.out.println(base.getFormattedValue((on & mask)));
    }

    public int getBaseXValueOnAtLevel(Base base, int on, int level) {
        if(level > base.getMaxRotation() || level < 1) {
            return 0; //INVALID Input
        }
        int rotation = base.getLevelOneRotation();
        int mask = base.getLevelZeroMask();

        if(level > 1) {
            rotation = (level-1) * rotation;
            mask = mask << rotation;
        } else {
            rotation = 0;
        }


        return (on & mask) >>> rotation;
    }

    public static void main(String[] args) {
        ConvertBase10ToBaseX obj = new ConvertBase10ToBaseX();

        obj.getBaseXValueOn(Base.BASE16,12456); 
//      obj.getBaseXValueOn(Base.BASE16,300); 
//      obj.getBaseXValueOn(Base.BASE16,7); 
//      obj.getBaseXValueOn(Base.BASE16,7);

        obj.getBaseXValueOn(Base.BASE2,12456);
        obj.getBaseXValueOn(Base.BASE8,12456);
        obj.getBaseXValueOn(Base.BASE2,8);
        obj.getBaseXValueOn(Base.BASE2,9);
        obj.getBaseXValueOn(Base.BASE2,10);
        obj.getBaseXValueOn(Base.BASE2,11);
        obj.getBaseXValueOn(Base.BASE2,12);
        obj.getBaseXValueOn(Base.BASE2,13);
        obj.getBaseXValueOn(Base.BASE2,14);
        obj.getBaseXValueOn(Base.BASE2,15);
        obj.getBaseXValueOn(Base.BASE2,16);
        obj.getBaseXValueOn(Base.BASE2,17);


        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE2, 4, 1)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE2, 4, 2)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE2, 4, 3)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE2, 4, 4)); 

        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE16,15, 1)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE16,30, 2)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE16,7, 1)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE16,7, 2)); 

        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE256, 511, 1)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE256, 511, 2)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE256, 512, 1));
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE256, 512, 2)); 
        System.out.println(obj.getBaseXValueOnAtLevel(Base.BASE256, 513, 2)); 


    }
}

Rank(), Dense_rank(), row_number() These all are window functions that means they act as window over some ordered input set at first. These windows have different functionality attached to it based on the requirement. Heres the above 3 :

row_number()

Starting by row_number() as this forms the basis of these related window functions. row_number() as the name suggests gives a unique number to the set of rows over which its been applied. Similar to giving a serial number to each row.

Rank()

A subversion of row_number() can be said as rank(). Rank() is used to give same serial number to those ordered set rows which are duplicates but it still keeps the count mantained as similar to a row_number() for all those after duplicates rank() meaning as from below eg. For data 2 row_number() =rank() meaning both just differs in the form of duplicates.

Data row_number() rank() dense_rank() 
    1         1                    1       1
    1         2                    1       1
    1         3                    1       1
    2         4                    4       2

Finally,

Dense_rank() is an extended version of rank() as the name suggests its dense because as you can see from the above example rank() = dense_rank() for all data 1 but just that for data 2 it differs in the form that it mantains the order of rank() from previous rank() not the actual data

The padding inside a table-divider (TD) is a padding property applied to the cell itself.

CSS

td, th {padding:0}

The spacing in-between the table-dividers is a space between cell borders of the TABLE. To make it effective, you have to specify if your table cells borders will 'collapse' or be 'separated'.

CSS

table, td, th {border-collapse:separate}
table {border-spacing:6px}

Try this : https://www.google.ca/search?num=100&newwindow=1&q=css+table+cellspacing+cellpadding+site%3Astackoverflow.com ( 27 100 results )

As you pointed out in your question it is a documented behavior. I still find it strange though. I use to repopulate the test database and even though I do not rely on the values of identity fields it was a bit of annoying to have different values when populating the database for the first time from scratch and after removing all data and populating again.

A possible solution is to use truncate to clean the table instead of delete. But then you need to drop all the constraints and recreate them afterwards

In that way it always behaves as a newly created table and there is no need to call DBCC CHECKIDENT. The first identity value will be the one specified in the table definition and it will be the same no matter if you insert the data for the first time or for the N-th

@param won't affect the number. It's just for making javadocs.

More on javadoc: http://www.oracle.com/technetwork/java/javase/documentation/index-137868.html

The error comes when you try to call sum(x) and x is a factor.

What that means is that one of your columns, though they look like numbers are actually factors (what you are seeing is the text representation)

simple fix, convert to numeric. However, it needs an intermeidate step of converting to character first. Use the following:

family[, 1] <- as.numeric(as.character( family[, 1] ))
family[, 3] <- as.numeric(as.character( family[, 3] ))

For a detailed explanation of why the intermediate as.character step is needed, take a look at this question: How to convert a factor to integer\numeric without loss of information?

In Angular 6, you can do this:

In your service file:

 function_name(data) {
    const url = `the_URL`;
    let input = new FormData();
    input.append('url', data);   // "url" as the key and "data" as value
    return this.http.post(url, input).pipe(map((resp: any) => resp));
  }

In component.ts file: in any function say xyz,

xyz(){
this.Your_service_alias.function_name(data).subscribe(d => {   // "data" can be your file or image in base64 or other encoding
      console.log(d);
    });
}

You didn't specify how the order is determined, but this will give you a rank value in MySQL:

SELECT t.*,
       @rownum := @rownum +1 AS rank
  FROM TBL_FOO t
  JOIN (SELECT @rownum := 0) r
 WHERE t.name = 'sarmen'

Then you can pick out what rows you want, based on the rank value.

I did git reset --hard on the wrong project by mistake (I know...). I had just worked on one file and it was still open during and after I ran the command.

Even though I had not committed, I was able to retrieve the old file with the simple COMMAND + Z.

after you add the user for testing. the user should get an email. open that email by your iOS device, then click "Start testing" it will bring you to testFlight to download the app directly. If you open that email via computer, and then click "Start testing" it will show you another page which have the instruction of how to install the app. and that invitation code is on the last line. those All upper case letters is the code.

Your link is not a playlist.

A proper playlist URL looks like this:

https://www.youtube.com/playlist?list=PLHSdFJ8BDqEyvUUzm6R0HxawSWniP2c9K

Your URL is just the first video OF a certain playlist. It contains https://www.youtube.com/watch? instead of https://www.youtube.com/playlist?.

Pick the playlist by clicking on the title of the playlist on the right side in the list of videos and use this URL.

Set the charset at after you made the connection to db like

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

if (!$conn->set_charset("utf8")) {
    printf("Error loading character set utf8: %s\n", $conn->error);
    exit();
} else {
    printf("Current character set: %s\n", $conn->character_set_name());
}

In WPF an image is typically loaded from a Stream or an Uri.

BitmapImage supports both and an Uri can even be passed as constructor argument:

var uri = new Uri("http://...");
var bitmap = new BitmapImage(uri);

If the image file is located in a local folder, you would have to use a file:// Uri. You could create such a Uri from a path like this:

var path = Path.Combine(Environment.CurrentDirectory, "Bilder", "sas.png");
var uri = new Uri(path);

If the image file is an assembly resource, the Uri must follow the the Pack Uri scheme:

var uri = new Uri("pack://application:,,,/Bilder/sas.png");

In this case the Visual Studio Build Action for sas.png would have to be Resource.

Once you have created a BitmapImage and also have an Image control like in this XAML

<Image Name="image1" />

you would simply assign the BitmapImage to the Source property of that Image control:

image1.Source = bitmap;

I usualy would enter the path like this ....

FileInfo fi = new FileInfo(@"C:\Program Files (x86)\test software\myapp\demo.exe"); 

Did you register the @ at the beginning of the string? ;-)

ERROR 1118 (42000) at line 1852:    
Row size too large (> 8126). Changing some columns to TEXT or 
     BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.

[mysqld]

innodb_log_file_size = 512M

innodb_strict_mode = 0

ubuntu 16.04 edit path:

sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

on MS Windows the path will be something like:

C:\ProgramData\MySQL\MySQL Server 5.7\my.ini

Don't forget to retart the service (or restart your machine)

I think you want to set the response of the call to the URL 'compz.php?prodid=' + x + '&qbuys=' + y as value of the textbox right? If so, you have to do something like:

$.get('compz.php?prodid=' + x + '&qbuys=' + y, function(data) {
    $('#subtotal').val(data);
});

Reference: get()

You have two errors in your code:

• load() puts the HTML returned from the Ajax into the specified element:

  Load data from the server and place the returned HTML into the matched element.

  You cannot set the value of a textbox with that method.

• $(selector).load() returns the a jQuery object. By default an object is converted to [object Object] when treated as string.

Further clarification:

Assuming your URL returns 5.

If your HTML looks like:

<div id="foo"></div>

then the result of

$('#foo').load('/your/url');

will be

<div id="foo">5</div>

But in your code, you have an input element. Theoretically (it is not valid HTML and does not work as you noticed), an equivalent call would result in

<input id="foo">5</input>

But you actually need

<input id="foo" value="5" />

Therefore, you cannot use load(). You have to use another method, get the response and set it as value yourself.

You can use prettytable to render the table as text. The trick is to convert the data_frame to an in-memory csv file and have prettytable read it. Here's the code:

from StringIO import StringIO
import prettytable    

output = StringIO()
data_frame.to_csv(output)
output.seek(0)
pt = prettytable.from_csv(output)
print pt

An alternative answer that uses today() method to calculate current date and then subtracts one using timedelta(). Rest of the steps remain the same.

https://docs.python.org/3.7/library/datetime.html#timedelta-objects

from datetime import date, timedelta
today = date.today()
yesterday = today - timedelta(days = 1)
print(today)
print(yesterday)

Output: 
2019-06-14
2019-06-13

mysql> SHOW ENGINE INNODB STATUS;

But in my case only this way could help:
1. Make backup of current DB
2. Drop DB (not all tables, but DB)
3. Create DB (check that you still have previleges)
4. Restore DB from backup

I try with this, no modifications on the css.

$(function() {_x000D_
  $('#datepicker').datepicker({_x000D_
    changeYear: true,_x000D_
    showButtonPanel: true,_x000D_
    dateFormat: 'yy',_x000D_
    onClose: function(dateText, inst) {_x000D_
      var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();_x000D_
      $(this).datepicker('setDate', new Date(year, 1));_x000D_
    }_x000D_
  });_x000D_
_x000D_
  $("#datepicker").focus(function() {_x000D_
    $(".ui-datepicker-month").hide();_x000D_
    $(".ui-datepicker-calendar").hide();_x000D_
  });_x000D_
_x000D_
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>_x000D_
<p>Date: <input type="text" id="datepicker" /></p>

Example code jsfiddle

Spring Integration provides a nice mechanism for watching Directories and files: http://static.springsource.org/spring-integration/reference/htmlsingle/#files. Pretty sure it's cross platform (I've used it on mac, linux, and windows).

DiffUtil can the best choice for updating the data in the RecyclerView Adapter which you can find in the android framework. DiffUtil is a utility class that can calculate the difference between two lists and output a list of update operations that converts the first list into the second one.

Most of the time our list changes completely and we set new list to RecyclerView Adapter. And we call notifyDataSetChanged to update adapter. NotifyDataSetChanged is costly. DiffUtil class solves that problem now. It does its job perfectly!

In MySQL, It should be like this

INSERT INTO this_table_archive (col1, col2, ..., coln)
SELECT col1, col2, ..., coln
FROM this_table
WHERE entry_date < '2011-01-01 00:00:00';

MySQL Documentation

You should have if row[2] != "0". Otherwise it's not checking to see if the string value is equal to 0.

In Android, if you want to animate an object and make it move an object from location1 to location2, the animation API figures out the intermediate locations (tweening) and then queues onto the main thread the appropriate move operations at the appropriate times using a timer. This works fine except that the main thread is usually used for many other things — painting, opening files, responding to user inputs etc. A queued timer can often be delayed. Well written programs will always try to do as many operations as possible in background (non main) threads however you can’t always avoid using the main thread. Operations that require you to operate on a UI object always have to be done on the main thread. Also, many APIs will funnel operations back to the main thread as a form of thread-safety.

Views are all drawn on the same GUI thread which is also used for all user interaction.

So if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.

Example of rotation image:

public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback {
    private DrawThread drawThread;

    public MySurfaceView(Context context) {
        super(context);
        getHolder().addCallback(this);
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {   
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        drawThread = new DrawThread(getHolder(), getResources());
        drawThread.setRunning(true);
        drawThread.start();
    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        boolean retry = true;
        drawThread.setRunning(false);
        while (retry) {
            try {
                drawThread.join();
                retry = false;
            } catch (InterruptedException e) {
            }
        }
    }
}


class DrawThread extends Thread{
    private boolean runFlag = false;
    private SurfaceHolder surfaceHolder;
    private Bitmap picture;
    private Matrix matrix;
    private long prevTime;

    public DrawThread(SurfaceHolder surfaceHolder, Resources resources){
        this.surfaceHolder = surfaceHolder;

        picture = BitmapFactory.decodeResource(resources, R.drawable.icon);

        matrix = new Matrix();
        matrix.postScale(3.0f, 3.0f);
        matrix.postTranslate(100.0f, 100.0f);

        prevTime = System.currentTimeMillis();
    }

    public void setRunning(boolean run) {
        runFlag = run;
    }

    @Override
    public void run() {
        Canvas canvas;
        while (runFlag) {
            long now = System.currentTimeMillis();
            long elapsedTime = now - prevTime;
            if (elapsedTime > 30){

                prevTime = now;
                matrix.preRotate(2.0f, picture.getWidth() / 2, picture.getHeight() / 2);
            }
            canvas = null;
            try {
                canvas = surfaceHolder.lockCanvas(null);
                synchronized (surfaceHolder) {
                    canvas.drawColor(Color.BLACK);
                    canvas.drawBitmap(picture, matrix, null);
                }
            } 
            finally {
                if (canvas != null) {
                    surfaceHolder.unlockCanvasAndPost(canvas);
                }
            }
        }
    }
}

activity:

public class SurfaceViewActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(new MySurfaceView(this));
    }
}

As of November 2018 the package autocomplete-python offers this functionality with this key combo:

Ctrl+Alt+G

with mouse cursor on the function call.

You can try

SELECT ROUND((SYSDATE - TO_DATE('12-MAY-16'))/365.25, 5) AS AGE from DUAL;

You can configure ROUND to show as many decimal places as you wish.

Placing the date in decimal format like aforementioned helps with calculations of age groups, etc.

This is just a contrived example. In real world scenarios, you wouldn't be converting strings to date using TO_DATE.

However, if you have date of birth in date format, you can subtract two dates safely.

While I agree with Ari's answer (and upvoted it :), I needed to do an extra step to get it to work with Java on Windows (where it needed to be deployed):

openssl s_client -showcerts -connect www.example.com:443 < /dev/null | openssl x509 -outform DER > derp.der

Before adding the openssl x509 -outform DER conversion, I was getting an error from keytool on Windows complaining about the certificate's format. Importing the .der file worked fine.

Shameless plug alert!

You will have to check for each directory in the path structure you want and create it manually if it doesn't exist. All the tools to do so are already there in Node's fs module, but you can do all of that simply with my mkpath module: https://github.com/jrajav/mkpath

You can add 1 to each example New = 5; old = 0;

(1+new) - (old+1) / (old +1) 5/ 1 * 100 ==> 500%

public void setHoursWorked(){
    hoursWorked = hours;
}

You haven't defined hours inside that method. hours is not passed in as a parameter, it's not declared as a variable, and it's not being used as a class member, so you get that error.

you can use ajax calls to call different methods without a postback

$.ajax({
    type: "POST",
     url: "@(Url.Action("Action", "Controller"))",
     data: {id: 'id', id1: 'id1' },
     contentType: "application/json; charset=utf-8",
     cache: false,
     async: true,
     success: function (result) {
        //do something
     }
});

You can also use web storage too if the app specs allows you that (it has support for IE8+).

It has 5M (most browsers) or 10M (IE) of memory at its disposal.

"Web Storage (Second Edition)" is the API and "HTML5 Local Storage" is a quick start.

This function return a sub and sorted array based in second parameter $keys

function array_sub_sort(array $values, array $keys){
    $keys = array_flip($keys);
    return array_merge(array_intersect_key($keys, $values), array_intersect_key($values, $keys));
}

Example:

$array_complete = [
    'a' => 1,
    'c' => 3,
    'd' => 4,
    'e' => 5,
    'b' => 2
];

$array_sub_sorted = array_sub_sort($array_complete, ['a', 'b', 'c']);//return ['a' => 1, 'b' => 2, 'c' => 3];

KyleMit's answer worked for me (thank you!), but I noticed that with select2 elements that allow for searching, trying to tab to the next element wouldn't work (tab order was effectively lost), so I added code to set focus back to the main select2 element when the dropdown is closing:

$(document).on('focus', '.select2', function (e) {
    if (e.originalEvent) {
        var s2element = $(this).siblings('select');
        s2element.select2('open');

        // Set focus back to select2 element on closing.
        s2element.on('select2:closing', function (e) {
            s2element.select2('focus');
        });
    }
});

The other answers all use Arrays.asList(), which returns an unmodifiable list (an UnsupportedOperationException is thrown if you try to add or remove an element). To get a mutable list you can wrap the returned list in a new ArrayList as a couple of answers point out, but a cleaner solution is to use Guava's Lists.newArrayList() (available since at least Guava 10, released in 2011).

For example:

Lists.newArrayList("Blargle!");

You're looking for the DataSource property:

List<SomeType> someList = ...;
myListBox.DataSource = someList;

You should also set the DisplayMember property to the name of a property in the object that you want the listbox to display. If you don't, it will call ToString().

Might be cleaner to use PrintWriter and its method println.
Just make sure you close the writer when you're done

Other solutions are great but they didn't take care of the fact that watermark shouldn't get selected on selection from the mouse. This fiddle takes care or that: https://jsfiddle.net/MiKr13/d1r4o0jg/9/

This will be better option for pdf or static html.

CSS:

#watermark {
  opacity: 0.2;
  font-size: 52px;
  color: 'black';
  background: '#ccc';
  position: absolute;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  right: 5px;
  bottom: 5px;
}

There are two ways. In case of doubt, you can always just try it. If it does not work, you can add extra braces to make sure, like that:

if not ((u0 <= u) and (u < u0+step)):

string[] filePaths = Directory.GetFiles(@"c:\MyDir\");
foreach (string filePath in filePaths)
File.Delete(filePath);

Or in a single line:

Array.ForEach(Directory.GetFiles(@"c:\MyDir\"), File.Delete);

If you want to play nice with Windows file paths (under Cygwin) you can also try this:

fname=${fullfile##*[/|\\]}

This will account for backslash separators when using BaSH on Windows.

try this... it works for me.

double vdouble = 0;
string sparam = "2,1";

if ( !Double.TryParse( sparam, NumberStyles.Float, CultureInfo.InvariantCulture, out vdouble ) )
{
    if ( sparam.IndexOf( '.' ) != -1 )
    {
        sparam = sparam.Replace( '.', ',' );
    }
    else
    {
        sparam = sparam.Replace( ',', '.' );
    }

    if ( !Double.TryParse( sparam, NumberStyles.Float, CultureInfo.InvariantCulture, out vdouble ) )
    {
        vdouble = 0;
    }
}

//Element[@attribute1="abc" and @attribute2="xyz" and .="Data"]

The reason why I add this answer is that I want to explain the relationship of . and text() .

The first thing is when using [], there are only two types of data:

1. [number] to select a node from node-set
2. [bool] to filter a node-set from node-set

In this case, the value is evaluated to boolean by function boolean(), and there is a rule:

Filters are always evaluated with respect to a context.

When you need to compare text() or . with a string "Data", it first uses string() function to transform those to string type, than gets a boolean result.

There are two important rule about string():

1. The string() function converts a node-set to a string by returning the string value of the first node in the node-set, which in some instances may yield unexpected results.

   text() is relative path that return a node-set contains all the text node of current node(context node), like ["Data"]. When it is evaluated by string(["Data"]), it will return the first node of node-set, so you get "Data" only when there is only one text node in the node-set.

2. If you want the string() function to concatenate all child text, you must then pass a single node instead of a node-set.

   For example, we get a node-set ['a', 'b'], you can pass there parent node to string(parent), this will return 'ab', and of cause string(.) in you case will return an concatenated string "Data".

Both way will get same result only when there is a text node.

My Method:

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    try {
        String path = request.getRealPath("/WEB-INF/conf.properties");
        Properties p = new Properties();
        p.load(new FileInputStream(path));

        String StringConexion=p.getProperty("StringConexion");
        String User=p.getProperty("User");
        String Password=p.getProperty("Password");
    }
    catch(Exception e){
        String msg = "Excepcion " + e;
    }
}

You have not one, but many mistakes. It should be:

int[] tall = new int[28123];

for (int j=0;j<28123;j++){
    tall[j] = j+1;
}

Your code is putting a 0 in all the positions of the array.

Morover, it'll throw an exception, because the last index of the array is 28123-1 (arrays in Java start in 0!).

Try either killall -15 mongod/ killall mongod Even after this if this doesnt work then remove the db storage folder by typing the following commands sudo rm -rf /data/db sudo mkdir /data/db sudo chmod 777 /data/db

I don't know if/where it's published, but you can get the latest release by omitting the minor and build numbers.

Latest 1.8.x:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>

Latest 1.x:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

However, do keep in mind that these links have a much shorter cache timeout than with the full version number, so your users may be downloading them more than you'd like. See The crucial .0 in Google CDN references to jQuery 1.x.0 for more information.

I'm assuming you have a typo in your get statement and that it should be test1.get(key). If so, I'm not sure why it is not returning an ArrayList unless you are not putting in the correct type in the map in the first place.

This should work:

// populate the map
Map<String, List<String>> test1 = new LinkedHashMap<String, List<String>>();
test1.put("key1", new ArrayList<String>());
test1.put("key2", new ArrayList<String>());

// loop over the set using an entry set
for( Map.Entry<String,List<String>> entry : test1.entrySet()){
  String key = entry.getKey();
  List<String>value = entry.getValue();
  // ...
}

or you can use

// second alternative - loop over the keys and get the value per key
for( String key : test1.keySet() ){
  List<String>value = test1.get(key);
  // ...
}

You should use the interface names when declaring your vars (and in your generic params) unless you have a very specific reason why you are defining using the implementation.

int arr[10] = {0, 5, 3, 64};
arr[4] = 5;

EDIT: So I was asked to explain what's happening when you do:

int arr[10] = {0, 5, 3, 64};

you create an array with 10 elements and you allocate values for the first 4 elements of the array.

Also keep in mind that arr starts at index arr[0] and ends at index arr[9] - 10 elements

arr[0] has value 0;
arr[1] has value 5;
arr[2] has value 3;
arr[3] has value 64;

after that the array contains garbage values / zeroes because you didn't allocated any other values

But you could still allocate 6 more values so when you do

arr[4] = 5;

you allocate the value 5 to the fifth element of the array.

You could do this until you allocate values for the last index of the arr that is arr[9];

Sorry if my explanation is choppy, but I have never been good at explaining things.

BufferedReader#read reads single character[0 to 65535 (0x00-0xffff)] from the stream, so it is not possible to read single integer from stream.

            String s= inp.readLine();
            int[] m= new int[2];
            String[] s1 = inp.readLine().split(" ");
            m[0]=Integer.parseInt(s1[0]);
            m[1]=Integer.parseInt(s1[1]);

            // Checking whether I am taking the inputs correctly
            System.out.println(s);
            System.out.println(m[0]);
            System.out.println(m[1]);

You can check also Scanner vs. BufferedReader.

All of the above answers are wrong because they fail to handle the OPTIONS preflight request, the solution is to override the mux router's interface. See AngularJS $http get request failed with custom header (alllowed in CORS)

func main() {
    r := mux.NewRouter()
    r.HandleFunc("/save", saveHandler)
    http.Handle("/", &MyServer{r})
    http.ListenAndServe(":8080", nil);

}

type MyServer struct {
    r *mux.Router
}

func (s *MyServer) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
    if origin := req.Header.Get("Origin"); origin != "" {
        rw.Header().Set("Access-Control-Allow-Origin", origin)
        rw.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
        rw.Header().Set("Access-Control-Allow-Headers",
            "Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization")
    }
    // Stop here if its Preflighted OPTIONS request
    if req.Method == "OPTIONS" {
        return
    }
    // Lets Gorilla work
    s.r.ServeHTTP(rw, req)
}

Just send xml bytes directly:

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
import requests

xml = """<?xml version='1.0' encoding='utf-8'?>
<a>?</a>"""
headers = {'Content-Type': 'application/xml'} # set what your server accepts
print requests.post('http://httpbin.org/post', data=xml, headers=headers).text

Output

{
  "origin": "x.x.x.x",
  "files": {},
  "form": {},
  "url": "http://httpbin.org/post",
  "args": {},
  "headers": {
    "Content-Length": "48",
    "Accept-Encoding": "identity, deflate, compress, gzip",
    "Connection": "keep-alive",
    "Accept": "*/*",
    "User-Agent": "python-requests/0.13.9 CPython/2.7.3 Linux/3.2.0-30-generic",
    "Host": "httpbin.org",
    "Content-Type": "application/xml"
  },
  "json": null,
  "data": "<?xml version='1.0' encoding='utf-8'?>\n<a>\u0431</a>"
}

It looks like you want the return keyword

def check_ping():
    hostname = "taylor"
    response = os.system("ping -c 1 " + hostname)
    # and then check the response...
    if response == 0:
        pingstatus = "Network Active"
    else:
        pingstatus = "Network Error"

    return pingstatus

You need to capture/'receive' the return value of the function(pingstatus) in a variable with something like:

pingstatus = check_ping()

NOTE: ping -c is for Linux, for Windows use ping -n

Some info on python functions:

http://www.tutorialspoint.com/python/python_functions.htm

http://www.learnpython.org/en/Functions

It's probably worth going through a good introductory tutorial to Python, which will cover all the fundamentals. I recommend investigating Udacity.com and codeacademy.com

Your compile SDK version must match the support library's major version.

Since you are using version 23 of the support library, you need to compile against version 23 of the Android SDK.

Alternatively you can continue compiling against version 22 of the Android SDK by switching to the latest support library v22.

If you use ng > 1.2, here is an example of using ng-repeat-start/end without generating unnecessary tags:

<html>_x000D_
  <head>_x000D_
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>_x000D_
    <script>_x000D_
      angular.module('mApp', []);_x000D_
    </script>_x000D_
  </head>_x000D_
  <body ng-app="mApp">_x000D_
    <table border="1" width="100%">_x000D_
      <tr ng-if="0" ng-repeat-start="elem in [{k: 'A', v: ['a1','a2']}, {k: 'B', v: ['b1']}, {k: 'C', v: ['c1','c2','c3']}]"></tr>_x000D_
_x000D_
      <tr>_x000D_
        <td rowspan="{{elem.v.length}}">{{elem.k}}</td>_x000D_
        <td>{{elem.v[0]}}</td>_x000D_
      </tr>_x000D_
      <tr ng-repeat="v in elem.v" ng-if="!$first">_x000D_
        <td>{{v}}</td>_x000D_
      </tr>_x000D_
_x000D_
      <tr ng-if="0" ng-repeat-end></tr>_x000D_
    </table>_x000D_
  </body>_x000D_
</html>

The important point: for tags used for ng-repeat-start and ng-repeat-end set ng-if="0", to let not be inserted in the page. In this way the inner content will be handled exactly as it is in knockoutjs (using commands in <!--...-->), and there will be no garbage.

No, you will have to use OR to combine your LIKE statements:

SELECT 
   * 
FROM 
   table
WHERE 
   column LIKE 'Text%' OR 
   column LIKE 'Link%' OR 
   column LIKE 'Hello%' OR
   column LIKE '%World%'

Have you looked at Full-Text Search?

SimpleDateFormat dateFormat = new SimpleDateFormat( "yyyy-MM-dd" );
Calendar cal = Calendar.getInstance();
cal.setTime( dateFormat.parse( inputString ) );
cal.add( Calendar.DATE, 1 );

I found this simple solution, PyMuPDF, output to png file. Note the library is imported as "fitz", a historical name for the rendering engine it uses.

import fitz

pdffile = "infile.pdf"
doc = fitz.open(pdffile)
page = doc.loadPage(0)  # number of page
pix = page.getPixmap()
output = "outfile.png"
pix.writePNG(output)

You may have to run cmd as administrator to perform these tasks. You can do it by right clicking on cmd icon and selecting run as administrator. It's worked for me.

• Everything that is nil? is blank?
• Everything that is empty? is blank?
• Nothing that is empty? is nil?
• Nothing that is nil? is empty?

tl;dr -- only use blank? & present? unless you want to distinguish between "" and " "

The most simple solution coming to my mind is:

for item in data_list:
    try:
        print(new)
    except NameError: pass
    new = item
print('The last item: ' + str(new))

So we always look ahead one item by delaying the the processing one iteration. To skip doing something during the first iteration I simply catch the error.

Of course you need to think a bit, in order for the NameError to be raised when you want it.

Also keep the `counstruct

try:
    new
except NameError: pass
else:
    # continue here if no error was raised

This relies that the name new wasn't previously defined. If you are paranoid you can ensure that new doesn't exist using:

try:
    del new
except NameError:
    pass

Alternatively you can of course also use an if statement (if notfirst: print(new) else: notfirst = True). But as far as I know the overhead is bigger.

Using `timeit` yields:

    ...: try: new = 'test' 
    ...: except NameError: pass
    ...: 
100000000 loops, best of 3: 16.2 ns per loop

so I expect the overhead to be unelectable.

Here is something that might help someone looking for this answer: The following uses jquery it searches the whole document and only replaces the text. for example if we had

<a href="/i-am/123/a/overpopulation">overpopulation</a>

and we wanted to add a span with the class overpop around the word overpopulation

<a href="/i-am/123/a/overpopulation"><span class="overpop">overpopulation</span></a>

we would run the following

        $("*:containsIN('overpopulation')").filter(
            function() {
                return $(this).find("*:contains('" + str + "')").length == 0
            }
        ).html(function(_, html) {
            if (html != 'undefined') {
                return html.replace(/(overpopulation)/gi, '<span class="overpop">$1</span>');
            }

        });

the search is case insensitive searches the whole document and only replaces the text portions in this case we are searching for the string 'overpopulation'

    $.extend($.expr[":"], {
        "containsIN": function(elem, i, match, array) {
            return (elem.textContent || elem.innerText || "").toLowerCase().indexOf((match[3] || "").toLowerCase()) >= 0;
        }
    });

datetime.time does not support this, because it's nigh meaningless to subtract times in this manner. Use a full datetime.datetime if you want to do this.

Best practice: one form per product is definitely the way to go.

Benefits:

• It will save you the hassle of having to parse the data to figure out which product was clicked
• It will reduce the size of data being posted

In your specific situation

If you only ever intend to have one form element, in this case a submit button, one form for all should work just fine.

My recommendation Do one form per product, and change your markup to something like:

<form method="post" action="">
    <input type="hidden" name="product_id" value="123">
    <button type="submit" name="action" value="add_to_cart">Add to Cart</button>
</form>

This will give you a much cleaner and usable POST. No parsing. And it will allow you to add more parameters in the future (size, color, quantity, etc).

Note: There's no technical benefit to using <button> vs. <input>, but as a programmer I find it cooler to work with action=='add_to_cart' than action=='Add to Cart'. Besides, I hate mixing presentation with logic. If one day you decide that it makes more sense for the button to say "Add" or if you want to use different languages, you could do so freely without having to worry about your back-end code.

This isn't supported yet. You can use plugins to export the text into HTML or RTF first, and then you can print it out, if you want.

Here is for example the SublimeHighlight plugin which you can use for exporting.

In general, I use nohup CMD & to run a nohup background process. However, when the command is in a form that nohup won't accept then I run it through bash -c "...".

For example:

nohup bash -c "(time ./script arg1 arg2 > script.out) &> time_n_err.out" &

stdout from the script gets written to script.out, while stderr and the output of time goes into time_n_err.out.

So, in your case:

nohup bash -c "(time bash executeScript 1 input fileOutput > scrOutput) &> timeUse.txt" &

In similar case I used the following code:

DateTime upperBound = DateTime.Today.AddDays(1); // If today is October 9, then upperBound is set to 2012-10-10 00:00:00
return var _My_ResetSet_Array = _DB
    .tbl_MyTable
    .Where(x => x.Active == true
        && x.DateTimeValueColumn < upperBound) // Accepts all dates earlier than October 10, time of day doesn't matter here
    .Select(x => x);

For the sake of completeness, what you are trying to create is a "modal window".

Numerous JS solutions allow you to create them with ease, take the time to find the one which best suits your needs.

I have used Tinybox 2 for small projects : http://sandbox.scriptiny.com/tinybox2/

For those who tried gkalpak answer and it did not work,

be aware that chrome will add the content script to a needed page only when your extension enabled during chrome launch and also a good idea restart browser after making these changes

According the W3Schools you might use JavaScript for disabled checkbox.

<!-- Checkbox who determine if the other checkbox must be disabled -->
<input type="checkbox" id="checkboxDetermine">
<!-- The other checkbox conditionned by the first checkbox -->
<input type="checkbox" id="checkboxConditioned">
<!-- JS Script -->
<script type="text/javascript">
    // Get your checkbox who determine the condition
    var determine = document.getElementById("checkboxDetermine");
    // Make a function who disabled or enabled your conditioned checkbox
    var disableCheckboxConditioned = function () {
        if(determine.checked) {
            document.getElementById("checkboxConditioned").disabled = true;
        }
        else {
            document.getElementById("checkboxConditioned").disabled = false;
        }
    }
    // On click active your function
    determine.onclick = disableCheckboxConditioned;
    disableCheckboxConditioned();
</script>

You can see the demo working here : http://jsfiddle.net/antoinesubit/vptk0nh6/

The Java Virtual Machine takes two command line arguments which set the initial and maximum heap sizes: -Xms and -Xmx. You can add a system environment variable named _JAVA_OPTIONS, and set the heap size values there.
For example if you want a 512Mb initial and 1024Mb maximum heap size you could use:

under Windows:

SET _JAVA_OPTIONS = -Xms512m -Xmx1024m

under Linux:

export _JAVA_OPTIONS="-Xms512m -Xmx1024m"

It is possible to read the default JVM heap size programmatically by using totalMemory() method of Runtime class. Use following code to read JVM heap size.

public class GetHeapSize {
    public static void main(String[]args){

        //Get the jvm heap size.
        long heapSize = Runtime.getRuntime().totalMemory();

        //Print the jvm heap size.
        System.out.println("Heap Size = " + heapSize);
    }
}

NSLog(@"%s %d %s %s", __FILE__, __LINE__, __PRETTY_FUNCTION__, __FUNCTION__);

Outputs file name, line number, and function name:

/proj/cocoa/cdcli/cdcli.m 121 managedObjectContext managedObjectContext

__FUNCTION__ in C++ shows mangled name __PRETTY_FUNCTION__ shows nice function name, in cocoa they look the same.

I'm not sure what is the proper way of disabling NSLog, I did:

#define NSLog

And no logging output showed up, however I don't know if this has any side effects.

Delphi used properties and they have found their way into .NET (because it has the same architect).

In Delphi they are often used in combination with runtime type information such that the integrated property editor can be used to set the property in designtime.

Properties are not always related to fields. They can be functions that possible have side effects (but of course that is very bad design).

This worked for me on an NGINX/PHP-FPM stack without touching any code or networking where the app's just expecting to be able to connect to localhost

Mount mysqld.sock from the host to inside the container.

Find the location of the mysql.sock file on the host running mysql:
netstat -ln | awk '/mysql(.*)?\.sock/ { print $9 }'

Mount that file to where it's expected in the docker:
docker run -v /hostpath/to/mysqld.sock:/containerpath/to/mysqld.sock

Possible locations of mysqld.sock:

/tmp/mysqld.sock
/var/run/mysqld/mysqld.sock 
/var/lib/mysql/mysql.sock
/Applications/MAMP/tmp/mysql/mysql.sock # if running via MAMP

This code will help you to show your cursor at the last position of editing text.

 editText.requestFocus();
 editText.setSelection(editText.length());

An easy one as an extension method

public static class Extensions
{
    public static Stream ConvertToBase64(this Stream stream)
    {
        byte[] bytes;
        using (var memoryStream = new MemoryStream())
        {
            stream.CopyTo(memoryStream);
            bytes = memoryStream.ToArray();
        }

        string base64 = Convert.ToBase64String(bytes);
        return new MemoryStream(Encoding.UTF8.GetBytes(base64));
    }
}

Adding another point of view to above mentioned solutions.

Implicit Wait: When created, is alive until the WebDriver object dies. And is like common for all operations.

Whereas,
Explicit wait, can be declared for a particular operation depending upon the webElement behavior. It has the benefit of customizing the polling time and satisfaction of the condition.
For example, we declared implicit Wait of 10 secs but an element takes more than that, say 20 seconds and sometimes may appears on 5 secs, so in this scenario, Explicit wait is declared.

set termout off doesn't work from the command line, so create a file e.g. termout_off.sql containing the line:

set termout off

and call this from the SQL prompt:

SQL> @termout_off

As a good practice recommended by Apple, it's good for the delegate (which is a protocol, by definition), to conform to NSObject protocol.

@protocol MyDelegate <NSObject>
    ...
@end

& to create optional methods within your delegate (i.e. methods which need not necessarily be implemented), you can use the @optional annotation like this :

@protocol MyDelegate <NSObject>
    ...
    ...
      // Declaration for Methods that 'must' be implemented'
    ...
    ...
    @optional
    ...
      // Declaration for Methods that 'need not necessarily' be implemented by the class conforming to your delegate
    ...
@end

So when using methods that you have specified as optional, you need to (in your class) check with respondsToSelector if the view (that is conforming to your delegate) has actually implemented your optional method(s) or not.

Generally, the answer to your question is no, you cannot define more than one externally visible function per file. You can return function handles to local functions, though, and a convenient way to do so is to make them fields of a struct. Here is an example:

function funs = makefuns
  funs.fun1=@fun1;
  funs.fun2=@fun2;
end

function y=fun1(x)
  y=x;
end

function z=fun2
  z=1;
end

And here is how it could be used:

>> myfuns = makefuns;
>> myfuns.fun1(5)    
ans =
     5
>> myfuns.fun2()     
ans =
     1

Please find example below, it might help you

package jersey.rest.test;

import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.HEAD;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Response;

@Path("/hello")
public class SimpleService {
    @GET
    @Path("/{param}")
    public Response getMsg(@PathParam("param") String msg) {
        String output = "Get:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/{param}")
    public Response postMsg(@PathParam("param") String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/post")
    //@Consumes(MediaType.TEXT_XML)
    public Response postStrMsg( String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @PUT
    @Path("/{param}")
    public Response putMsg(@PathParam("param") String msg) {
        String output = "PUT: Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @DELETE
    @Path("/{param}")
    public Response deleteMsg(@PathParam("param") String msg) {
        String output = "DELETE:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @HEAD
    @Path("/{param}")
    public Response headMsg(@PathParam("param") String msg) {
        String output = "HEAD:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }
}

for testing you can use any tool like RestClient (http://code.google.com/p/rest-client/)

I use a generic query I call "dump" (why? I don't know) that looks like this:

SET NEWPAGE NONE
SET PAGESIZE 0
SET SPACE 0
SET LINESIZE 16000
SET ECHO OFF
SET FEEDBACK OFF
SET VERIFY OFF
SET HEADING OFF
SET TERMOUT OFF
SET TRIMOUT ON
SET TRIMSPOOL ON
SET COLSEP |

spool &1..txt

@@&1

spool off
exit

I then call SQL*Plus passing the actual SQL script I want to run as an argument:

sqlplus -S user/password@database @dump.sql my_real_query.sql

The result is written to a file

my_real_query.sql.txt

.

The !== opererator tests whether values are not equal or not the same type. i.e.

var x = 5;
var y = '5';
var 1 = y !== x; // true
var 2 = y != x; // false

The command to just stream it to a new container (mp4) needed by some applications like Adobe Premiere Pro without encoding (fast) is:

ffmpeg -i input.mov -qscale 0 output.mp4

Alternative as mentioned in the comments, which re-encodes with best quaility (-qscale 0):

ffmpeg -i input.mov -q:v 0 output.mp4

Always use tax_query to get posts/products from a particular category or any other taxonomy. You can also get the products using ID/slug of particular taxonomy...

$the_query = new WP_Query( array(
    'post_type' => 'product',
    'tax_query' => array(
        array (
            'taxonomy' => 'product_cat',
            'field' => 'slug',
            'terms' => 'accessories',
        )
    ),
) );

while ( $the_query->have_posts() ) :
    $the_query->the_post();
    the_title(); echo "<br>";
endwhile;


wp_reset_postdata();

You could simply return a value from the function:

var response = 0;

function doSomething() {
    // some code
    return 10;
}
response = doSomething();

Microsoft has listened to the cry for supporting installers (MSI) in Visual Studio and released the Visual Studio Installer Projects Extension. You can now create installers in Visual Studio 2013; download the extension here from the visualstudiogallery.

if ($done)
{
    header("Location: /url/to/the/other/page");
    exit;
}

If you would need to disable E_DEPRACATED also, use:

php_value error_reporting 22527

In my case CMS Made Simple was complaining "E_STRICT is enabled in the error_reporting" as well as "E_DEPRECATED is enabled". Adding that one line to .htaccess solved both misconfigurations.

I expanded just slightly on the isValidDate function Thorbin posted above (using a regex). We use a regex to check the format (to prevent us from getting another format which would be valid for Date). After this loose check we then actually run it through the Date constructor and return true or false if it is valid within this format. If it is not a valid date we will get false from this function.

function isValidDate(dateString) {_x000D_
  var regEx = /^\d{4}-\d{2}-\d{2}$/;_x000D_
  if(!dateString.match(regEx)) return false;  // Invalid format_x000D_
  var d = new Date(dateString);_x000D_
  var dNum = d.getTime();_x000D_
  if(!dNum && dNum !== 0) return false; // NaN value, Invalid date_x000D_
  return d.toISOString().slice(0,10) === dateString;_x000D_
}_x000D_
_x000D_
_x000D_
/* Example Uses */_x000D_
console.log(isValidDate("0000-00-00"));  // false_x000D_
console.log(isValidDate("2015-01-40"));  // false_x000D_
console.log(isValidDate("2016-11-25"));  // true_x000D_
console.log(isValidDate("1970-01-01"));  // true = epoch_x000D_
console.log(isValidDate("2016-02-29"));  // true = leap day_x000D_
console.log(isValidDate("2013-02-29"));  // false = not leap day

I would check the Installed value of

HKLM\SOFTWARE\[WOW6432Node]\Microsoft\Windows\CurrentVersion\Uninstall\{VCRedist_GUID} key

• where GUID of VC++ 2012 (x86) is {33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}
• WOW6432Node will be present or not depending on the VC++ redist product

The condition i==j+1 will not be true for i==2. This can be fixed by a couple of changes to the inner loop:

#include <stdio.h>
int main(void)
{
 for (int i=2; i<100; i++)
 {
  for (int j=2; j<=i; j++)   // Changed upper bound
  {
    if (i == j)  // Changed condition and reversed order of if:s
      printf("%d\n",i);
    else if (i%j == 0)
      break;
  }
 }
}

changing templateUrl: '' to template: '' fixed it

Using IrfanView image viewer in Windows, I simply resaved the PNG image and that corrected the problem.

I had this error because I was providing a string of arguments to subprocess.call instead of an array of arguments. To prevent this, use shlex.split:

import shlex, subprocess
command_line = "ls -a"
args = shlex.split(command_line)
p = subprocess.Popen(args)

This happened to me when I was trying to push the develop branch (I am using git flow). Someone had push updates to master. to fix it I did:

git co master
git pull

Which fetched those changes. Then,

git co develop
git pull

Which didn't do anything. I think the develop branch already pushed despite the error message. Everything is up to date now and no errors.

Below command will work in command prompt:

copy c:\folder\file.ext \\dest-machine\destfolder /Z /Y

To Copy all files:

copy c:\folder\*.* \\dest-machine\destfolder /Z /Y

This message means that for some reason the garbage collector is taking an excessive amount of time (by default 98% of all CPU time of the process) and recovers very little memory in each run (by default 2% of the heap).

This effectively means that your program stops doing any progress and is busy running only the garbage collection at all time.

To prevent your application from soaking up CPU time without getting anything done, the JVM throws this Error so that you have a chance of diagnosing the problem.

The rare cases where I've seen this happen is where some code was creating tons of temporary objects and tons of weakly-referenced objects in an already very memory-constrained environment.

Check out the Java GC tuning guide, which is available for various Java versions and contains sections about this specific problem:

• Java 11 tuning guide has dedicated sections on excessive GC for different garbage collectors:
  • for the Parallel Collector
  • for the Concurrent Mark Sweep (CMS) Collector
  • there is no mention of this specific error condition for the Garbage First (G1) collector.
• Java 8 tuning guide and its Excessive GC section
• Java 6 tuning guide and its Excessive GC section.

Lastly:

print_r($_REQUEST);

That covers most incoming items: PHP.net Manual: $_REQUEST

it looks like your custom JpaRepository method name does not match any Variable in your entity classs. Make sure your method name matches a variable in your entity class

for example: you got a variable name called "active" and your custom JpaRepository method says "findByActiveStatus" and since there is no variable called "activeStatus" it will throw"PropertyReferenceException"

if (($value > 1 && $value < 10) || ($value > 20 && $value < 40))

You just need to write the first query as a subquery (derived table), inside parentheses, pick an alias for it (t below) and alias the columns as well.

The DISTINCT can also be safely removed as the internal GROUP BY makes it redundant:

SELECT DATE(`date`) AS `date` , COUNT(`player_name`) AS `player_count`
FROM (
    SELECT MIN(`date`) AS `date`, `player_name`
    FROM `player_playtime`
    GROUP BY `player_name`
) AS t
GROUP BY DATE( `date`) DESC LIMIT 60 ;

Since the COUNT is now obvious that is only counting rows of the derived table, you can replace it with COUNT(*) and further simplify the query:

SELECT t.date , COUNT(*) AS player_count
FROM (
    SELECT DATE(MIN(`date`)) AS date
    FROM player_playtime
    GROUP BY player_name
) AS t
GROUP BY t.date DESC LIMIT 60 ;

The following transact SQL script works for all languages (international). The solution is not to check for alphanumeric but to check for not containing special characters.

DECLARE @teststring nvarchar(max)
SET @teststring = 'Test''Me'
SELECT 'IS ALPHANUMERIC: ' + @teststring
WHERE @teststring NOT LIKE '%[-!#%&+,./:;<=>@`{|}~"()*\\\_\^\?\[\]\'']%' {ESCAPE '\'}

Generally speaking:

all and any are functions that take some iterable and return True, if

• in the case of all(), no values in the iterable are falsy;
• in the case of any(), at least one value is truthy.

A value x is falsy iff bool(x) == False. A value x is truthy iff bool(x) == True.

Any non-booleans in the iterable will be fine — bool(x) will coerce any x according to these rules: 0, 0.0, None, [], (), [], set(), and other empty collections will yield False, anything else True. The docstring for bool uses the terms 'true'/'false' for 'truthy'/'falsy', and True/False for the concrete boolean values.

In your specific code samples:

You misunderstood a little bit how these functions work. Hence, the following does something completely not what you thought:

if any(foobars) == big_foobar:

...because any(foobars) would first be evaluated to either True or False, and then that boolean value would be compared to big_foobar, which generally always gives you False (unless big_foobar coincidentally happened to be the same boolean value).

Note: the iterable can be a list, but it can also be a generator/generator expression (˜ lazily evaluated/generated list) or any other iterator.

What you want instead is:

if any(x == big_foobar for x in foobars):

which basically first constructs an iterable that yields a sequence of booleans—for each item in foobars, it compares the item to big_foobar and emits the resulting boolean into the resulting sequence:

tmp = (x == big_foobar for x in foobars)

then any walks over all items in tmp and returns True as soon as it finds the first truthy element. It's as if you did the following:

In [1]: foobars = ['big', 'small', 'medium', 'nice', 'ugly']                                        

In [2]: big_foobar = 'big'                                                                          

In [3]: any(['big' == big_foobar, 'small' == big_foobar, 'medium' == big_foobar, 'nice' == big_foobar, 'ugly' == big_foobar])        
Out[3]: True

Note: As DSM pointed out, any(x == y for x in xs) is equivalent to y in xs but the latter is more readable, quicker to write and runs faster.

Some examples:

In [1]: any(x > 5 for x in range(4))
Out[1]: False

In [2]: all(isinstance(x, int) for x in range(10))
Out[2]: True

In [3]: any(x == 'Erik' for x in ['Erik', 'John', 'Jane', 'Jim'])
Out[3]: True

In [4]: all([True, True, True, False, True])
Out[4]: False

See also: http://docs.python.org/2/library/functions.html#all

svn:// doesn't talk http, therefor there's nothing a http proxy could do.

Any reason why http doesn't work? Have you considered https? If you really need it, you probably have to have port 3690 opened in your firewall.

The problem is that a link to a closed file works with index( but not with index(indirect(

It seems to me that it is a programming issue of the index function. I solved it with a if clause row

C2=sheetname
if(c2=Sheet1,index(sheet1....),if(C2="Sheet2",index(sheet2....

I did it over five sheets, it's a long formula, but does what I need.

Remove .iml file from all your project module and next go to File -> Invalidate Caches/Restart

<?php

$subject = "this is a subject";
$message = "testing a message";




  $headers .= "Reply-To: The Sender <[email protected]>\r\n"; 
  $headers .= "Return-Path: The Sender <[email protected]>\r\n"; 
  $headers .= "From: The Sender <[email protected]>\r\n";  
  $headers .= "Organization: Sender Organization\r\n";
  $headers .= "MIME-Version: 1.0\r\n";
  $headers .= "Content-type: text/plain; charset=iso-8859-1\r\n";
  $headers .= "X-Priority: 3\r\n";
  $headers .= "X-Mailer: PHP". phpversion() ."\r\n" ;



mail("[email protected]", $subject, $message, $headers); 


?> 

If options under Server Locations are grayed out, note the message in the section title: "Server must be published with no modules present". To publish the server, right click the name of the server in the Server window and select "Publish".

Processing the ASP.NET web-form takes place in stages. At each state various events are raised. If you are interested to plug your code into the processing flow (on server side) then you have to handle appropriate page event.

You can simply use the data-interval attribute of the carousel class.

It's default value is set to data-interval="3000" i.e 3seconds.

All you need to do is set it to your desired requirements.

I think you are right by saying that people cannot click half pixels, so personally, I would use rounded jQuery offset...

I have tried this pure component:

const RawHTML = ({children, className = ""}) => 
<div className={className}
  dangerouslySetInnerHTML={{ __html: children.replace(/\n/g, '<br />')}} />

Features

• Takes classNameprop (easier to style it)
• Replaces \n to <br /> (you often want to do that)
• Place content as children when using the component like:
• <RawHTML>{myHTML}</RawHTML>

I have placed the component in a Gist at Github: RawHTML: ReactJS pure component to render HTML

__repr__ is used by the standalone Python interpreter to display a class in printable format. Example:

~> python3.5
Python 3.5.1 (v3.5.1:37a07cee5969, Dec  5 2015, 21:12:44) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class StackOverflowDemo:
...     def __init__(self):
...         pass
...     def __repr__(self):
...         return '<StackOverflow demo object __repr__>'
... 
>>> demo = StackOverflowDemo()
>>> demo
<StackOverflow demo object __repr__>

In cases where a __str__ method is not defined in the class, it will call the __repr__ function in an attempt to create a printable representation.

>>> str(demo)
'<StackOverflow demo object __repr__>'

Additionally, print()ing the class will call __str__ by default.

Documentation, if you please

Why don't you just save/serve the CSS file as UTF-8?

nav a:hover:after {
    content: "?";
}

If that's not good enough, and you want to keep it all-ASCII:

nav a:hover:after {
    content: "\2193";
}

The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.

Relevant part of the CSS2 spec:

Third, backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0-9a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear. There are two ways to do that:

1. with a space (or other white space character): "\26 B" ("&B"). In this case, user agents should treat a "CR/LF" pair (U+000D/U+000A) as a single white space character.
2. by providing exactly 6 hexadecimal digits: "\000026B" ("&B")

In fact, these two methods may be combined. Only one white space character is ignored after a hexadecimal escape. Note that this means that a "real" space after the escape sequence must be doubled.

If the number is outside the range allowed by Unicode (e.g., "\110000" is above the maximum 10FFFF allowed in current Unicode), the UA may replace the escape with the "replacement character" (U+FFFD). If the character is to be displayed, the UA should show a visible symbol, such as a "missing character" glyph (cf. 15.2, point 5).

• Note: Backslash escapes are always considered to be part of an identifier or a string (i.e., "\7B" is not punctuation, even though "{" is, and "\32" is allowed at the start of a class name, even though "2" is not).
  The identifier "te\st" is exactly the same identifier as "test".

Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).

If you want to be evil, you can use the in-place "new" operator:

class Foo() {
    Foo() { /* default constructor deliciousness */ }
    Foo(Bar myParam) {
      new (this) Foo();
      /* bar your param all night long */
    } 
};

Seems to work for me.

edit

As @ElvedinHamzagic points out, if Foo contained an object which allocated memory, that object might not be freed. This complicates things further.

A more general example:

class Foo() {
private:
  std::vector<int> Stuff;
public:
    Foo()
      : Stuff(42)
    {
      /* default constructor deliciousness */
    }

    Foo(Bar myParam)
    {
      this->~Foo();
      new (this) Foo();
      /* bar your param all night long */
    } 
};

Looks a bit less elegant, for sure. @JohnIdol's solution is much better.

for complete this script , the function for draw circle ,

    function drawCircle(coordon)
    {
        var coord = coordon.split(',');

        var c = document.getElementById("myCanvas");
        var hdc = c.getContext("2d");
        hdc.beginPath();

        hdc.arc(coord[0], coord[1], coord[2], 0, 2 * Math.PI);
        hdc.stroke();
    }

If you set "Use regular expressions" flag then \n would be translated. But keep in mind that you would have to modify you search term to be regexp friendly. In your case it should be escaped like this "\~\~\?" (no quotes).

Have you tried int 21h service 2? DL is the character to print.

mov dl,'A' ; print 'A'
mov ah,2
int 21h

To print the integer value, you'll have to write a loop to decompose the integer to individual characters. If you're okay with printing the value in hex, this is pretty trivial.

If you can't rely on DOS services, you might also be able to use the BIOS int 10h with AL set to 0Eh or 0Ah.

This image sums pretty well the difference between both:

Source here

I'd like to extend the paulalexandru's answer and put here complete solution that works generally with bootstrap dropdowns and updating main button's content and also the value from selected option.

The bootstrap dropdown is defined this way:

<div class="btn-group" role="group">
  <button type="button" data-toggle="dropdown" value="1" class="btn btn-default btn-sm dropdown-toggle">
    Option 1 <span class="caret"></span>
  </button>
  <ul class="dropdown-menu">
    <li><a href="#" data-value="1">Option 1</a></li>
    <li><a href="#" data-value="2">Option 2</a></li>
    <li><a href="#" data-value="3">Option 3</a></li>
  </ul>
</div> 

Additional to standard bootstrap dropdown code, there is data-value attribute for storing the values in every dropdown option (in <a> element).

Now the JS code. I crated function that handle the dropdowns:

function dropdownToggle() {
    // select the main dropdown button element
    var dropdown = $(this).parent().parent().prev();

    // change the CONTENT of the button based on the content of selected option
    dropdown.html($(this).html() + '&nbsp;</i><span class="caret"></span>');

    // change the VALUE of the button based on the data-value property of selected option
    dropdown.val($(this).prop('data-value'));
}

And of course we need to add event listener:

$(document).ready(function(){
    $('.dropdown-menu a').on('click', dropdownToggle);
}

With the Material Theme and the material components FloatingActionButton by default it takes the color set in styles.xml attribute colorSecondary.

• You can use the app:backgroundTint attribute in xml:

<com.google.android.material.floatingactionbutton.FloatingActionButton
       ...
       app:backgroundTint=".."
       app:srcCompat="@drawable/ic_plus_24"/>

• You can use fab.setBackgroundTintList();

• You can customize your style using the <item name="backgroundTint"> attribute

  <!--<item name="floatingActionButtonStyle">@style/Widget.MaterialComponents.FloatingActionButton</item> -->
  <style name="MyFloatingActionButton" parent="@style/Widget.MaterialComponents.FloatingActionButton">
    <item name="backgroundTint">#00f</item>
    <!-- color used by the icon -->
    <item name="tint">@color/...</item>
  </style>

• starting from version 1.1.0 of material components you can use the new materialThemeOverlay attribute to override the default colors only for some components:

  <style name="MyFloatingActionButton" parent="@style/Widget.MaterialComponents.FloatingActionButton">
    <item name="materialThemeOverlay">@style/MyFabOverlay</item>
  </style>

  <style name="MyFabOverlay">
    <item name="colorSecondary">@color/custom2</item>
    <!-- color used by the icon -->
    <item name="colorOnSecondary">@color/...</item>
  </style>

I had same issue for windows , the cause of the problem was currupted or missing dll files. I had to change them.

In android studio ,

Help Menu -> Show log in explorer.

It opens log folder, where you can find all logs . In my situation error like "Emulator terminated with exit code -1073741515"

1. Try to run emulator from command prompt ,

• Go to folder ~\Android\Sdk\emulator

• Run this command:

  emulator.exe -netdelay none -netspeed full -avd <virtual device name> 
  
  ex: emulator.exe -netdelay none -netspeed full -avd Nexus_5X_API_26.avd
  

  You can find this command from folder ~.android\avd\xxx.avd\emu-launch-params.txt

2. If you get error about vcruntime140 ,

• Search and download the appropriate vcruntime140.dll file for your system from the internet (32 / 64 bit version) , and replace it with the vcruntime140.dll file in the folder ~\Android\Sdk\emulator

• Try step 1

• If you get error about vcruntime140_1 , change the file name as vcruntime140_1.dll ,try step 1

3. If you get error about msvcp140.dll

• Search and download the appropriate msvcp140.dll file for your system from the internet (32 / 64 bit version)
• Replace the file in the folder C:\Windows\System32 with file msvcp140.dll
• Try step 1

If it runs , you can run it from Android Studio also.

Clear Instructions On How to Add A Collaborator - 2020 Update

Pictures are worth a thousand words. Let's put that to the test:

Picture Instructions (Click to Zoom in):

.......and videos/gifs are worth another thousand more:

Gif Instructions (Click to Zoom in):

Hopefully the pictures/gif make it easier for you to configure this!

Re the solution for SqlBulkCopy:

I used the StreamReader to convert and process the text file. The result was a list of my object.

I created a class than takes Datatable or a List<T> and a Buffer size (CommitBatchSize). It will convert the list to a data table using an extension (in the second class).

It works very fast. On my PC, I am able to insert more than 10 million complicated records in less than 10 seconds.

Here is the class:

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DAL
{

public class BulkUploadToSql<T>
{
    public IList<T> InternalStore { get; set; }
    public string TableName { get; set; }
    public int CommitBatchSize { get; set; }=1000;
    public string ConnectionString { get; set; }

    public void Commit()
    {
        if (InternalStore.Count>0)
        {
            DataTable dt;
            int numberOfPages = (InternalStore.Count / CommitBatchSize)  + (InternalStore.Count % CommitBatchSize == 0 ? 0 : 1);
            for (int pageIndex = 0; pageIndex < numberOfPages; pageIndex++)
                {
                    dt= InternalStore.Skip(pageIndex * CommitBatchSize).Take(CommitBatchSize).ToDataTable();
                BulkInsert(dt);
                }
        } 
    }

    public void BulkInsert(DataTable dt)
    {
        using (SqlConnection connection = new SqlConnection(ConnectionString))
        {
            // make sure to enable triggers
            // more on triggers in next post
            SqlBulkCopy bulkCopy =
                new SqlBulkCopy
                (
                connection,
                SqlBulkCopyOptions.TableLock |
                SqlBulkCopyOptions.FireTriggers |
                SqlBulkCopyOptions.UseInternalTransaction,
                null
                );

            // set the destination table name
            bulkCopy.DestinationTableName = TableName;
            connection.Open();

            // write the data in the "dataTable"
            bulkCopy.WriteToServer(dt);
            connection.Close();
        }
        // reset
        //this.dataTable.Clear();
    }

}

public static class BulkUploadToSqlHelper
{
    public static DataTable ToDataTable<T>(this IEnumerable<T> data)
    {
        PropertyDescriptorCollection properties =
            TypeDescriptor.GetProperties(typeof(T));
        DataTable table = new DataTable();
        foreach (PropertyDescriptor prop in properties)
            table.Columns.Add(prop.Name, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType);
        foreach (T item in data)
        {
            DataRow row = table.NewRow();
            foreach (PropertyDescriptor prop in properties)
                row[prop.Name] = prop.GetValue(item) ?? DBNull.Value;
            table.Rows.Add(row);
        }
        return table;
    }
}

}

Here is an example when I want to insert a List of my custom object List<PuckDetection> (ListDetections):

var objBulk = new BulkUploadToSql<PuckDetection>()
{
        InternalStore = ListDetections,
        TableName= "PuckDetections",
        CommitBatchSize=1000,
        ConnectionString="ENTER YOU CONNECTION STRING"
};
objBulk.Commit();

The BulkInsert class can be modified to add column mapping if required. Example you have an Identity key as first column.(this assuming that the column names in the datatable are the same as the database)

//ADD COLUMN MAPPING
foreach (DataColumn col in dt.Columns)
{
        bulkCopy.ColumnMappings.Add(col.ColumnName, col.ColumnName);
}

At the top first set up database connection as follow:

<?php
$mysqli = new mysqli("localhost", "username", "password", "database") or die($this->mysqli->error);
$query= $mysqli->query("SELECT PcID from PC");
?> 

Then include the following code in HTML inside form

<select name="selected_pcid" id='selected_pcid'>

            <?php 

             while ($rows = $query->fetch_array(MYSQLI_ASSOC)) {
                        $value= $rows['id'];
                ?>
                 <option value="<?= $value?>"><?= $value?></option>
                <?php } ?>
             </select>

However, if you are using materialize css or any other out of the box css, make sure that select field is not hidden or disabled.

I solved it moving the file spring-context.xml in a src folder. ApplicationContext context = new ClassPathXmlApplicationContext("spring-context.xml");

You can also use the setProperty method like below

document.getElementById('divName').style.setProperty("top", "100px");

Almost all of the answers on this page rely on checking a session variable's existence to validate a user login. That is absolutely fine, but it is important to consider that the PHP session state is not unique to your application if there are multiple virtual hosts/sites on the same bare metal.

If you have two PHP applications on a webserver, both checking a user's login status with a boolean flag in a session variable called 'isLoggedIn', then a user could log into one of the applications and then automagically gain access to the second without credentials.

I suspect even the most dinosaur of commercial shared hosting wouldn't let virtual hosts share the same PHP environment in such a way that this could happen across multiple customers site's (anymore), but its something to consider in your own environments.

The very simple solution is to use a session variable that identifies the app rather than a boolean flag. e.g $SESSION["isLoggedInToExample.com"].

Source: I'm a penetration tester, with a lot of experience on how you shouldn't do stuff.

Few years later, I've built this library to do drop files into any HTML element.

You can use it like

const Droppable = require('droppable');

const droppable = new Droppable({
    element: document.querySelector('#my-droppable-element')
})

droppable.onFilesDropped((files) => {
    console.log('Files were dropped:', files);
});

// Clean up when you're done!
droppable.destroy();

File SqlStudio.bin actually contains binary serialized data of type "Microsoft.SqlServer.Management.UserSettings.SqlStudio".

Using BinaryFormatter class you can write simple .NET application in order to edit file content.

Please try this!, it may help some people

<EditText  
android:enabled="false"
android:textColor="#000000"/>

@Carlo I really like your implementation of this, but I wanted to share my version and how to use it in my ViewModel

First implement ICommand

public class Command : ICommand
{
    public delegate void ICommandOnExecute();
    public delegate bool ICommandOnCanExecute();

    private ICommandOnExecute _execute;
    private ICommandOnCanExecute _canExecute;

    public Command(ICommandOnExecute onExecuteMethod, ICommandOnCanExecute onCanExecuteMethod = null)
    {
        _execute = onExecuteMethod;
        _canExecute = onCanExecuteMethod;
    }

    #region ICommand Members

    public event EventHandler CanExecuteChanged
    {
        add { CommandManager.RequerySuggested += value; }
        remove { CommandManager.RequerySuggested -= value; }
    }

    public bool CanExecute(object parameter)
    {
        return _canExecute?.Invoke() ?? true;
    }

    public void Execute(object parameter)
    {
        _execute?.Invoke();
    }

    #endregion
}

Notice I have removed the parameter from ICommandOnExecute and ICommandOnCanExecute and added a null to the constructor

Then to use in the ViewModel

public Command CommandToRun_WithCheck
{
    get
    {
        return new Command(() =>
        {
            // Code to run
        }, () =>
        {
            // Code to check to see if we can run 
            // Return true or false
        });
    }
}

public Command CommandToRun_NoCheck
{
    get
    {
        return new Command(() =>
        {
            // Code to run
        });
    }
}

I just find this way cleaner as I don't need to assign variables and then instantiate, it all done in one go.

You may be interested by the pack_forget and grid_forget methods of a widget. In the following example, the button disappear when clicked

from Tkinter import *

def hide_me(event):
    event.widget.pack_forget()

root = Tk()
btn=Button(root, text="Click")
btn.bind('<Button-1>', hide_me)
btn.pack()
btn2=Button(root, text="Click too")
btn2.bind('<Button-1>', hide_me)
btn2.pack()
root.mainloop()