I know its too longtime to reply but just as an information purpose for future readers:

WebRequest

System.Object
    System.MarshalByRefObject
        System.Net.WebRequest

The WebRequest is an abstract base class. So you actually don't use it directly. You use it through it derived classes - HttpWebRequest and FileWebRequest.

You use Create method of WebRequest to create an instance of WebRequest. GetResponseStream returns data stream.

There are also FileWebRequest and FtpWebRequest classes that inherit from WebRequest. Normally, you would use WebRequest to, well, make a request and convert the return to either HttpWebRequest, FileWebRequest or FtpWebRequest, depend on your request. Below is an example:

Example:

var _request = (HttpWebRequest)WebRequest.Create("http://stackverflow.com");
var _response = (HttpWebResponse)_request.GetResponse();

WebClient

System.Object
        System.MarshalByRefObject
            System.ComponentModel.Component
                System.Net.WebClient

WebClient provides common operations to sending and receiving data from a resource identified by a URI. Simply, it’s a higher-level abstraction of HttpWebRequest. This ‘common operations’ is what differentiate WebClient from HttpWebRequest, as also shown in the sample below:

Example:

var _client = new WebClient();
var _stackContent = _client.DownloadString("http://stackverflow.com");

There are also DownloadData and DownloadFile operations under WebClient instance. These common operations also simplify code of what we would normally do with HttpWebRequest. Using HttpWebRequest, we have to get the response of our request, instantiate StreamReader to read the response and finally, convert the result to whatever type we expect. With WebClient, we just simply call DownloadData, DownloadFile or DownloadString.

However, keep in mind that WebClient.DownloadString doesn’t consider the encoding of the resource you requesting. So, you would probably end up receiving weird characters if you don’t specify and encoding.

NOTE: Basically "WebClient takes few lines of code as compared to Webrequest"

Matthew Brindley, your code worked very good for some website I needed (with login), but I needed to change to HttpWebRequest and HttpWebResponse otherwise I get a 404 Bad Request from the remote server. Also I would like to share my workaround using your code, and is that I tried it to login to a website based on moodle, but it didn't work at your step "GETting the page behind the login form" because when successfully POSTing the login, the Header 'Set-Cookie' didn't return anything despite other websites does.

So I think this where we need to store cookies for next Requests, so I added this.


To the "POSTing to the login form" code block :

var cookies = new CookieContainer();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(formUrl);
req.CookieContainer = cookies;

And To the "GETting the page behind the login form" :

HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create(getUrl);
getRequest.CookieContainer = new CookieContainer();
getRequest.CookieContainer.Add(resp.Cookies);
getRequest.Headers.Add("Cookie", cookieHeader);

Doing this, lets me Log me in and get the source code of the "page behind login" (website based moodle) I know this is a vague use of the CookieContainer and HTTPCookies because we may ask first is there a previously set of cookies saved before sending the request to the server. This works without problem anyway, but here's a good info to read about WebRequest and WebResponse with sample projects and tutorial:
Retrieving HTTP content in .NET
How to use HttpWebRequest and HttpWebResponse in .NET

System.Net.HttpWebRequest adds the header 'HTTP header "Expect: 100-Continue"' to every request unless you explicitly ask it not to by setting this static property to false:

System.Net.ServicePointManager.Expect100Continue = false;

Some servers choke on that header and send back the 417 error you're seeing.

Give that a shot.

namespace FileUpload
{
public partial class Form1 : Form
{
    string fileName = "";
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {

        string path = "";
        OpenFileDialog fDialog = new OpenFileDialog();
        fDialog.Title = "Attach customer proposal document";
        fDialog.Filter = "Doc Files|*.doc|Docx File|*.docx|PDF doc|*.pdf";
        fDialog.InitialDirectory = @"C:\";
        if (fDialog.ShowDialog() == DialogResult.OK)
        {
            fileName = System.IO.Path.GetFileName(fDialog.FileName);
            path = Path.GetDirectoryName(fDialog.FileName);
            textBox1.Text = path + "\\" + fileName;

        }
    }

    private void button2_Click(object sender, EventArgs e)
    {
        try
        {
            WebClient client = new WebClient();

            NetworkCredential nc = new NetworkCredential("erandika1986", "123");

            Uri addy = new Uri(@"\\192.168.2.4\UploadDocs\"+fileName);

            client.Credentials = nc;
            byte[] arrReturn = client.UploadFile(addy, textBox1.Text);
            MessageBox.Show(arrReturn.ToString());

        }
        catch (Exception ex1)
        {
            MessageBox.Show(ex1.Message);
        }
    }
}
}

This one is just extension of article you found.

public class WebClientEx : WebClient
{
    public WebClientEx(CookieContainer container)
    {
        this.container = container;
    }

    public CookieContainer CookieContainer
        {
            get { return container; }
            set { container= value; }
        }

    private CookieContainer container = new CookieContainer();

    protected override WebRequest GetWebRequest(Uri address)
    {
        WebRequest r = base.GetWebRequest(address);
        var request = r as HttpWebRequest;
        if (request != null)
        {
            request.CookieContainer = container;
        }
        return r;
    }

    protected override WebResponse GetWebResponse(WebRequest request, IAsyncResult result)
    {
        WebResponse response = base.GetWebResponse(request, result);
        ReadCookies(response);
        return response;
    }

    protected override WebResponse GetWebResponse(WebRequest request)
    {
        WebResponse response = base.GetWebResponse(request);
        ReadCookies(response);
        return response;
    }

    private void ReadCookies(WebResponse r)
    {
        var response = r as HttpWebResponse;
        if (response != null)
        {
            CookieCollection cookies = response.Cookies;
            container.Add(cookies);
        }
    }
}

What kind of authentication are you using? If it's Forms authentication, then at best, you'll have to find the .ASPXAUTH cookie and pass it in the WebClient request.

At worst, it won't work.

If you're using .NET 4.5 and want to use async then you can use HttpClient in System.Net.Http:

using (var httpClient = new HttpClient())
{
    var json = await httpClient.GetStringAsync("url");

    // Now parse with JSON.Net
}

• You can use WebClient.

• Or (if you need more fine-grained control over the request) HttpWebRequest

• Or, HttpClient in System.Net.Http.dll.

Here's a "translation" to HttpWebRequest (needed rather than WebClient in order to set the referrer). (Uses System.Net and System.IO):

    HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(requestUrl))
    http.Referer = referrer;
    HttpWebResponse response = (HttpWebResponse )http.GetResponse();
    using (StreamReader sr = new StreamReader(response.GetResponseStream()))
    {
        string responseJson = sr.ReadToEnd();
        // more stuff
    }

Try WebClient.DownloadFileAsync(). You can call CancelAsync() by timer with your own timeout.

HttpClientFactory

It's important to evaluate the different ways you can create an HttpClient, and part of that is understanding HttpClientFactory.

https://docs.microsoft.com/en-us/dotnet/architecture/microservices/implement-resilient-applications/use-httpclientfactory-to-implement-resilient-http-requests

This is not a direct answer I know - but you're better off starting here than ending up with new HttpClient(...) everywhere.

Using simple client.UploadString(adress, content); normally works fine but I think it should be remembered that a WebException will be thrown if not a HTTP successful status code is returned. I usually handle it like this to print any exception message the remote server is returning:

try
{
    postResult = client.UploadString(address, content);
}
catch (WebException ex)
{
    String responseFromServer = ex.Message.ToString() + " ";
    if (ex.Response != null)
    {
        using (WebResponse response = ex.Response)
        {
            Stream dataRs = response.GetResponseStream();
            using (StreamReader reader = new StreamReader(dataRs))
            {
                responseFromServer += reader.ReadToEnd();
                _log.Error("Server Response: " + responseFromServer);
            }
        }
    }
    throw;
}

You can extend the timeout: inherit the original WebClient class and override the webrequest getter to set your own timeout, like in the following example.

MyWebClient was a private class in my case:

private class MyWebClient : WebClient
{
    protected override WebRequest GetWebRequest(Uri uri)
    {
        WebRequest w = base.GetWebRequest(uri);
        w.Timeout = 20 * 60 * 1000;
        return w;
    }
}

As far as the http verb is concerned the WebRequest might be easier. You could go for something like:

    WebRequest r = WebRequest.Create("http://some.url");
    r.Method = "POST";
    using (var s = r.GetResponse().GetResponseStream())
    {
        using (var reader = new StreamReader(r, FileMode.Open))
        {
            var content = reader.ReadToEnd();
        }
    }

Obviously this lacks exception handling and writing the request body (for which you can use r.GetRequestStream() and write it like a regular stream, but I hope it may be of some help.

In my case I got this error because my domain was not listed in Hosts file on Server. If in future anyone else is facing the same issue, try making entry in Host file and check.

Path : C:\Windows\System32\drivers\etc
FileName: hosts

If you are using .Net 4.0 (or less):

class BetterWebClient : WebClient
{
        private WebRequest _Request = null;

        protected override WebRequest GetWebRequest(Uri address)
        {
            this._Request = base.GetWebRequest(address);

            if (this._Request is HttpWebRequest)
            {
                ((HttpWebRequest)this._Request).AllowAutoRedirect = false;
            }

            return this._Request;
        } 

        public HttpStatusCode StatusCode()
        {
            HttpStatusCode result;

            if (this._Request == null)
            {
                throw (new InvalidOperationException("Unable to retrieve the status 
                       code, maybe you haven't made a request yet."));
            }

            HttpWebResponse response = base.GetWebResponse(this._Request) 
                                       as HttpWebResponse;

            if (response != null)
            {
                result = response.StatusCode;
            }
            else
            {
                throw (new InvalidOperationException("Unable to retrieve the status 
                       code, maybe you haven't made a request yet."));
            }

            return result;
        }
    }

If you are using .Net 4.5.X or newer, switch to HttpClient:

var response = await client.GetAsync("http://www.contoso.com/");
var statusCode = response.StatusCode;

The question is already answered but I think I've found the solution that is simpler and more relevant to the question title, here it is:

var cli = new WebClient();
cli.Headers[HttpRequestHeader.ContentType] = "application/json";
string response = cli.UploadString("http://some/address", "{some:\"json data\"}");

PS: In the most of .net implementations, but not in all WebClient is IDisposable, so of cource it is better to do 'using' or 'Dispose' on it. However in this particular case it is not really necessary.

anytree

I recommend https://pypi.python.org/pypi/anytree

Example

from anytree import Node, RenderTree

udo = Node("Udo")
marc = Node("Marc", parent=udo)
lian = Node("Lian", parent=marc)
dan = Node("Dan", parent=udo)
jet = Node("Jet", parent=dan)
jan = Node("Jan", parent=dan)
joe = Node("Joe", parent=dan)

print(udo)
Node('/Udo')
print(joe)
Node('/Udo/Dan/Joe')

for pre, fill, node in RenderTree(udo):
    print("%s%s" % (pre, node.name))
Udo
+-- Marc
¦   +-- Lian
+-- Dan
    +-- Jet
    +-- Jan
    +-- Joe

print(dan.children)
(Node('/Udo/Dan/Jet'), Node('/Udo/Dan/Jan'), Node('/Udo/Dan/Joe'))

Features

anytree has also a powerful API with:

• simple tree creation
• simple tree modification
• pre-order tree iteration
• post-order tree iteration
• resolve relative and absolute node paths
• walking from one node to an other.
• tree rendering (see example above)
• node attach/detach hookups

Another method through re module. It does the reverse operation of matching all the words instead of spitting the whole sentence by space.

>>> import re
>>> s = "many   fancy word \nhello    \thi"
>>> re.findall(r'\S+', s)
['many', 'fancy', 'word', 'hello', 'hi']

Above regex would match one or more non-space characters.

Simple, cheap, easy to read, and always works regardless of the specs.

$delimiter = '';
for ....  {
    print $delimiter.$whatever
    $delimiter = ',';
}

The redundant assignment to $delim is a very small price to pay. Also works just as well if there is no explicit loop but separate code fragments.

If you want to modify the original array instead of returning a new array, use .push()...

array1.push.apply(array1, array2);
array1.push.apply(array1, array3);

I used .apply to push the individual members of arrays 2 and 3 at once.

or...

array1.push.apply(array1, array2.concat(array3));

To deal with large arrays, you can do this in batches.

for (var n = 0, to_add = array2.concat(array3); n < to_add.length; n+=300) {
    array1.push.apply(array1, to_add.slice(n, n+300));
}

If you do this a lot, create a method or function to handle it.

var push_apply = Function.apply.bind([].push);
var slice_call = Function.call.bind([].slice);

Object.defineProperty(Array.prototype, "pushArrayMembers", {
    value: function() {
        for (var i = 0; i < arguments.length; i++) {
            var to_add = arguments[i];
            for (var n = 0; n < to_add.length; n+=300) {
                push_apply(this, slice_call(to_add, n, n+300));
            }
        }
    }
});

and use it like this:

array1.pushArrayMembers(array2, array3);

var push_apply = Function.apply.bind([].push);_x000D_
var slice_call = Function.call.bind([].slice);_x000D_
_x000D_
Object.defineProperty(Array.prototype, "pushArrayMembers", {_x000D_
    value: function() {_x000D_
        for (var i = 0; i < arguments.length; i++) {_x000D_
            var to_add = arguments[i];_x000D_
            for (var n = 0; n < to_add.length; n+=300) {_x000D_
                push_apply(this, slice_call(to_add, n, n+300));_x000D_
            }_x000D_
        }_x000D_
    }_x000D_
});_x000D_
_x000D_
var array1 = ['a','b','c'];_x000D_
var array2 = ['d','e','f'];_x000D_
var array3 = ['g','h','i'];_x000D_
_x000D_
array1.pushArrayMembers(array2, array3);_x000D_
_x000D_
document.body.textContent = JSON.stringify(array1, null, 4);

Since you have an object, not a jQuery wrapper, you need to use a different variant of $.each()

$.each(json, function (key, data) {
    console.log(key)
    $.each(data, function (index, data) {
        console.log('index', data)
    })
})

Demo: Fiddle

I don't have a reference for it handy, but script tags are processed in order, and so if you put your $(document).ready(function1) in a script tag after the script tags that define function1, etc., you should be good to go.

<script type='text/javascript' src='...'></script>
<script type='text/javascript' src='...'></script>
<script type='text/javascript'>
$(document).ready(function1);
</script>

Of course, another approach would be to ensure that you're using only one script tag, in total, by combining files as part of your build process. (Unless you're loading the other ones from a CDN somewhere.) That will also help improve the perceived speed of your page.

EDIT: Just realized that I didn't actually answer your question: I don't think there's a cross-browser event that's fired, no. There is if you work hard enough, see below. You can test for symbols and use setTimeout to reschedule:

<script type='text/javascript'>
function fireWhenReady() {
    if (typeof function1 != 'undefined') {
        function1();
    }
    else {
        setTimeout(fireWhenReady, 100);
    }
}
$(document).ready(fireWhenReady);
</script>

...but you shouldn't have to do that if you get your script tag order correct.

Update: You can get load notifications for script elements you add to the page dynamically if you like. To get broad browser support, you have to do two different things, but as a combined technique this works:

function loadScript(path, callback) {

    var done = false;
    var scr = document.createElement('script');

    scr.onload = handleLoad;
    scr.onreadystatechange = handleReadyStateChange;
    scr.onerror = handleError;
    scr.src = path;
    document.body.appendChild(scr);

    function handleLoad() {
        if (!done) {
            done = true;
            callback(path, "ok");
        }
    }

    function handleReadyStateChange() {
        var state;

        if (!done) {
            state = scr.readyState;
            if (state === "complete") {
                handleLoad();
            }
        }
    }
    function handleError() {
        if (!done) {
            done = true;
            callback(path, "error");
        }
    }
}

In my experience, error notification (onerror) is not 100% cross-browser reliable. Also note that some browsers will do both mechanisms, hence the done variable to avoid duplicate notifications.

returns true if subject is between low and high (inclusive)

$between = function( $low, $high, $subject ) {
    if( $subject < $low ) return false;
    if( $subject > $high ) return false;
    return true;
};

if( $between( 0, 100, $givenNumber )) {
   // do whatever...
}

looks cleaner to me

For Angular 5+ :

import { Observable } from 'rxjs/Observable';should work. The observer package should match the import as well import { Observer } from 'rxjs/Observer'; if you're using observers that is

import {<something>} from 'rxjs'; does a huge import so it's better to avoid it.

Left Click on chart. «PivotTable Field List» will appear on right. On the right down quarter of PivotTable Field List (S Values), you see the names of the legends. Left Click on the legend name. Left Click on the «Value field settings». At the top there is «Source Name». You can’t change it. Below there is «Custom Name». Change the Custom Name as you wish. Now the legend name on the chart has the new name you gave.

I had a similar related question: What if you wanted the original object format back (with key names, e.g. FOO, BAR)?

Jq provides to_entries and from_entries to convert between objects and key-value pair arrays. That along with map around the select

These functions convert between an object and an array of key-value pairs. If to_entries is passed an object, then for each k: v entry in the input, the output array includes {"key": k, "value": v}.

from_entries does the opposite conversion, and with_entries(foo) is a shorthand for to_entries | map(foo) | from_entries, useful for doing some operation to all keys and values of an object. from_entries accepts key, Key, name, Name, value and Value as keys.

jq15 < json 'to_entries | map(select(.value.location=="Stockholm")) | from_entries'

{
  "FOO": {
    "name": "Donald",
    "location": "Stockholm"
  },
  "BAR": {
    "name": "Walt",
    "location": "Stockholm"
  }
}

Using the with_entries shorthand, this becomes:

jq15 < json 'with_entries(select(.value.location=="Stockholm"))'
{
  "FOO": {
    "name": "Donald",
    "location": "Stockholm"
  },
  "BAR": {
    "name": "Walt",
    "location": "Stockholm"
  }
}

I am bit confused. If all you are wanting is for a variables value to not pass to another script then there is no need to delete the variable from the scope. Simply nullify the variable then explicit check if it is or is not null. Why go through the trouble of deleting the variable from scope? What purpose does this server that nullifying can not?

foo = null;
if(foo === null) or if(foo !== null)

In Entity Framework 6.1+ you can use this attribute on your model:

[Index(IsUnique=true)]

You can find it in this namespace:

using System.ComponentModel.DataAnnotations.Schema;

If your model field is a string, make sure it is not set to nvarchar(MAX) in SQL Server or you will see this error with Entity Framework Code First:

Column 'x' in table 'dbo.y' is of a type that is invalid for use as a key column in an index.

The reason is because of this:

SQL Server retains the 900-byte limit for the maximum total size of all index key columns."

(from: http://msdn.microsoft.com/en-us/library/ms191241.aspx )

You can solve this by setting a maximum string length on your model:

[StringLength(450)]

Your model will look like this now in EF CF 6.1+:

public class User
{
   public int UserId{get;set;}
   [StringLength(450)]
   [Index(IsUnique=true)]
   public string UserName{get;set;}
}

Update:

if you use Fluent:

  public class UserMap : EntityTypeConfiguration<User>
  {
    public UserMap()
    {
      // ....
      Property(x => x.Name).IsRequired().HasMaxLength(450).HasColumnAnnotation("Index", new IndexAnnotation(new[] { new IndexAttribute("Index") { IsUnique = true } }));
    }
  }

and use in your modelBuilder:

protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
  // ...
  modelBuilder.Configurations.Add(new UserMap());
  // ...
}

Update 2

for EntityFrameworkCore see also this topic: https://github.com/aspnet/EntityFrameworkCore/issues/1698

Update 3

for EF6.2 see: https://github.com/aspnet/EntityFramework6/issues/274

Update 4

ASP.NET Core Mvc 2.2 with EF Core:

[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public Guid Unique { get; set; }

import React, { PureComponent, Fragment } from 'react';
import ReactDOM from 'react-dom';

class Select extends PureComponent {
  state = {
    options: [
      {
        name: 'Select…',
        value: null,
      },
      {
        name: 'A',
        value: 'a',
      },
      {
        name: 'B',
        value: 'b',
      },
      {
        name: 'C',
        value: 'c',
      },
    ],
    value: '?',
  };

  handleChange = (event) => {
    this.setState({ value: event.target.value });
  };

  render() {
    const { options, value } = this.state;

    return (
      <Fragment>
        <select onChange={this.handleChange} value={value}>
          {options.map(item => (
            <option key={item.value} value={item.value}>
              {item.name}
            </option>
          ))}
        </select>
        <h1>Favorite letter: {value}</h1>
      </Fragment>
    );
  }
}

ReactDOM.render(<Select />, window.document.body);

Did you check the string concatenation function? Something like:

update table_c set column_a = column_b || column_c 

should work. More here

In my experience, the best way to handle this when the primary authoritative source of information for two tables which are related has to be in two separate databases is to sync a copy of the table from the primary location to the secondary location (using T-SQL or SSIS with appropriate error checking - you cannot truncate and repopulate a table while it has a foreign key reference, so there are a few ways to skin the cat on the table updating).

Then add a traditional FK relationship in the second location to the table which is effectively a read-only copy.

You can use a trigger or scheduled job in the primary location to keep the copy updated.

Adding class using element's classList property:

element.classList.add('my-class-name');

Removing:

element.classList.remove('my-class-name');

Use the DEFAULT keyword:

$query = "INSERT INTO myTable VALUES (DEFAULT,'Fname', 'Lname', 'Website')";

Also, you can specify the columns, (which is better practice):

$query = "INSERT INTO myTable
          (fname, lname, website)
          VALUES
          ('fname', 'lname', 'website')";

Reference:

• http://dev.mysql.com/doc/refman/5.6/en/data-type-defaults.html

I've found out that the container id can be found in /proc/self/cgroup

So you can get the id with :

cat /proc/self/cgroup | grep -o  -e "docker-.*.scope" | head -n 1 | sed "s/docker-\(.*\).scope/\\1/"

I would always recomend that you use NSMutableArray as the object to pass on. This is because you can then pass several objects, like the button pressed and other values. NSNumber, NSInteger and NSString are just containers of some value. Make sure that when you get the object from the array that you refer to to a correct container type. You need to pass on NS containers. There you may test the value. Remember that containers use isEqual when values are compared.

#define DELAY_TIME 5

-(void)changePlayerGameOnes:(UIButton*)sender{
    NSNumber *nextPlayer = [NSNumber numberWithInt:[gdata.currentPlayer intValue]+1 ];
    NSMutableArray *array = [[NSMutableArray alloc]initWithObjects:sender, nil];
    [array addObject:nextPlayer];
    [self performSelector:@selector(next:) withObject:array afterDelay:DELAY_TIME];
}
-(void)next:(NSMutableArray*)nextPlayer{
    if(gdata != nil){ //if game choose next player
       [self nextPlayer:[nextPlayer objectAtIndex:1] button:[nextPlayer objectAtIndex:0]];
    }
}

Try this:

<asp:Button runat="server" ID="btnDelete" Text="Delete"
   onClientClick="javascript:return confirm('Are you sure you want to delete this user?');" OnClick="BtnDelete_Click" />

  <!DOCTYPE html>
    <html>
  <head>
  <style> 
   div {

   padding: 20px; 

   resize: both;
  overflow: auto;
   }
    img{
   height: 100%;
    width: 100%;
 object-fit: contain;
 }
 </style>
  </head>
  <body>
 <h1>The resize Property</h1>

 <div>
 <p>Let the user resize both the height and the width of this 1234567891011 div 
   element. 
  </p>
 <p>To resize: Click and drag the bottom right corner of this div element.</p>
  <img src="images/scenery.jpg" alt="Italian ">
  </div>

   <p><b>Note:</b> Internet Explorer does not support the resize property.</p>

 </body>
 </html>

To reverse a string without using reversed or [::-1], try something like:

def reverse(text):
    # Container for reversed string
    txet=""

    # store the length of the string to be reversed
    # account for indexes starting at 0
    length = len(text)-1

    # loop through the string in reverse and append each character
    # deprecate the length index
    while length>=0:
        txet += "%s"%text[length]
        length-=1
    return txet

If this is your app, if you connect the device to your computer, you can use the "Devices" option on Xcode's "Window" menu and then download the app's data container to your computer. Just select your app from the list of installed apps, and click on the "gear" icon and choose "Download Container".

Once you've downloaded it, right click on the file in the Finder and choose "Show Package Contents".

toString is a way to convert an array to string.

Also, you can use:

for (int i = 0; i < myArray.length; i++){
System.out.println(myArray[i] + " ");
}

This for loop will enable you to print each value of your array in order.

From DateTime on msdn:

Type: System.DateTime% When this method returns, contains the DateTime value equivalent to the date and time contained in s, if the conversion succeeded, or MinValue if the conversion failed. The conversion fails if the s parameter is null, is an empty string (""), or does not contain a valid string representation of a date and time. This parameter is passed uninitialized.

Use parseexact with the format string "yyyy-dd-MM hh:mm tt" instead.

Source

Thread

Thread represents an actual OS-level thread, with its own stack and kernel resources. (technically, a CLR implementation could use fibers instead, but no existing CLR does this) Thread allows the highest degree of control; you can Abort() or Suspend() or Resume() a thread (though this is a very bad idea), you can observe its state, and you can set thread-level properties like the stack size, apartment state, or culture.

The problem with Thread is that OS threads are costly. Each thread you have consumes a non-trivial amount of memory for its stack, and adds additional CPU overhead as the processor context-switch between threads. Instead, it is better to have a small pool of threads execute your code as work becomes available.

There are times when there is no alternative Thread. If you need to specify the name (for debugging purposes) or the apartment state (to show a UI), you must create your own Thread (note that having multiple UI threads is generally a bad idea). Also, if you want to maintain an object that is owned by a single thread and can only be used by that thread, it is much easier to explicitly create a Thread instance for it so you can easily check whether code trying to use it is running on the correct thread.

ThreadPool

ThreadPool is a wrapper around a pool of threads maintained by the CLR. ThreadPool gives you no control at all; you can submit work to execute at some point, and you can control the size of the pool, but you can't set anything else. You can't even tell when the pool will start running the work you submit to it.

Using ThreadPool avoids the overhead of creating too many threads. However, if you submit too many long-running tasks to the threadpool, it can get full, and later work that you submit can end up waiting for the earlier long-running items to finish. In addition, the ThreadPool offers no way to find out when a work item has been completed (unlike Thread.Join()), nor a way to get the result. Therefore, ThreadPool is best used for short operations where the caller does not need the result.

Task

Finally, the Task class from the Task Parallel Library offers the best of both worlds. Like the ThreadPool, a task does not create its own OS thread. Instead, tasks are executed by a TaskScheduler; the default scheduler simply runs on the ThreadPool.

Unlike the ThreadPool, Task also allows you to find out when it finishes, and (via the generic Task) to return a result. You can call ContinueWith() on an existing Task to make it run more code once the task finishes (if it's already finished, it will run the callback immediately). If the task is generic, ContinueWith() will pass you the task's result, allowing you to run more code that uses it.

You can also synchronously wait for a task to finish by calling Wait() (or, for a generic task, by getting the Result property). Like Thread.Join(), this will block the calling thread until the task finishes. Synchronously waiting for a task is usually bad idea; it prevents the calling thread from doing any other work, and can also lead to deadlocks if the task ends up waiting (even asynchronously) for the current thread.

Since tasks still run on the ThreadPool, they should not be used for long-running operations, since they can still fill up the thread pool and block new work. Instead, Task provides a LongRunning option, which will tell the TaskScheduler to spin up a new thread rather than running on the ThreadPool.

All newer high-level concurrency APIs, including the Parallel.For*() methods, PLINQ, C# 5 await, and modern async methods in the BCL, are all built on Task.

Conclusion

The bottom line is that Task is almost always the best option; it provides a much more powerful API and avoids wasting OS threads.

The only reasons to explicitly create your own Threads in modern code are setting per-thread options, or maintaining a persistent thread that needs to maintain its own identity.

I use Komodo Edit. Check out the Open Komodo Edit.

Module.constants.select { |c| (eval c).is_a?(Class) && (eval c) < ActiveRecord::Base }

Use drive letter d for changing to D drive like:

  C:\> d:

When changing drives, you just need to type the drive letter, like d: (don't use the backslash, like d:\; it doesn't work).

You only use cd when moving between directories within the same drive.

As an addendum to the other answers, this sounds like a fine use-case for a context manager that will re-map the names of these functions to ones which return a list and introduce reduce in the global namespace.

A quick implementation might look like this:

from contextlib import contextmanager    

@contextmanager
def noiters(*funcs):
    if not funcs: 
        funcs = [map, filter, zip] # etc
    from functools import reduce
    globals()[reduce.__name__] = reduce
    for func in funcs:
        globals()[func.__name__] = lambda *ar, func = func, **kwar: list(func(*ar, **kwar))
    try:
        yield
    finally:
        del globals()[reduce.__name__]
        for func in funcs: globals()[func.__name__] = func

With a usage that looks like this:

with noiters(map):
    from operator import add
    print(reduce(add, range(1, 20)))
    print(map(int, ['1', '2']))

Which prints:

190
[1, 2]

Just my 2 cents :-)

This question has a lot of older answers and readonly seems to be the generally accepted solution. I believe the better approach in modern browsers is to use the inputmode="none" in the HTML input tag:

<input type="text" ... inputmode="none" />

or, if you prefer to do it in script:

$(selector).attr('inputmode', 'none');

I haven't tested it extensively, but it is working well on the Android setups I have used it with.

A NullPointerException means that one of the variables you are passing is null, but the code tries to use it like it is not.

For example, If I do this:

Integer myInteger = null;
int n = myInteger.intValue();

The code tries to grab the intValue of myInteger, but since it is null, it does not have one: a null pointer exception happens.

What this means is that your getTask method is expecting something that is not a null, but you are passing a null. Figure out what getTask needs and pass what it wants!

The WHERE clause is always conceptually applied (the execution plan can do what it wants, obviously) prior to the GROUP BY. It must come before the GROUP BY in the query, and acts as a filter before things are SUMmed, which is how most of the answers here work.

You should also be aware of the optional HAVING clause which must come after the GROUP BY. This can be used to filter on the resulting properties of groups after GROUPing - for instance HAVING SUM(Amount) > 0

you can use ??"" for example:

y=x??""

if x isn't null y=x but if x is null y=""

a) When a cdecl function is called by the caller, how does a caller know if it should free up the stack?

The cdecl modifier is part of the function prototype (or function pointer type etc.) so the caller get the info from there and acts accordingly.

b) If a function which is declared as stdcall calls a function(which has a calling convention as cdecl), or the other way round, would this be inappropriate?

No, it's fine.

c) In general, can we say that which call will be faster - cdecl or stdcall?

In general, I would refrain from any such statements. The distinction matters eg. when you want to use va_arg functions. In theory, it could be that stdcall is faster and generates smaller code because it allows to combine popping the arguments with popping the locals, but OTOH with cdecl, you can do the same thing, too, if you're clever.

The calling conventions that aim to be faster usually do some register-passing.

Here you can resolve this issue, you need to add flavorDimension with productFlavors's name and need to define dimension as well, see below example and for more information see here https://developer.android.com/studio/build/gradle-plugin-3-0-0-migration.html

flavorDimensions 'yourAppName' //here defined dimensions
productFlavors {
    production {
        dimension 'yourAppName' //you just need to add this line
        //here you no need to write applicationIdSuffix because by default it will point to your app package which is also available inside manifest.xml file.

    }

    staging {
        dimension 'yourAppName' //added here also
        applicationIdSuffix ".staging"//(.staging) will be added after your default package name.
        //or you can also use applicationId="your_package_name.staging" instead of applicationIdSuffix but remember if you are using applicationId then You have to mention full package name.
        //versionNameSuffix "-staging"

    }

    develop {
        dimension 'yourAppName' //add here too
        applicationIdSuffix ".develop"
        //versionNameSuffix "-develop"

    }

You could also use this:

ini_alter('date.timezone','Asia/Calcutta');

You should call this before calling any date function. It accepts the key as the first parameter to alter PHP settings during runtime and the second parameter is the value.

I had done these things before I figured out this:

1. Changed the PHP.timezone to "Asia/Calcutta" - but did not work
2. Changed the lat and long parameters in the ini - did not work
3. Used date_default_timezone_set("Asia/Calcutta"); - did not work
4. Used ini_alter() - IT WORKED
5. Commented date_default_timezone_set("Asia/Calcutta"); - IT WORKED
6. Reverted the changes made to the PHP.ini - IT WORKED

For me the init_alter() method got it all working.

I am running Apache 2 (pre-installed), PHP 5.3 on OSX mountain lion

As others have pointed out you need the quotes, but I just want to point out that there's a shorthand method of writing this same line of code

var htmlString="<?=$htmlString?>";

See you can leave out the "php echo" stuff and replace it with a simple "=".

Take a look at this site, it explains two methods for reading from console in java, using Scanner or the classical InputStreamReader from System.in.

Following code is taken from cited website:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

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

    System.out.println("Enter something here : ");

    try{
        BufferedReader bufferRead = new BufferedReader(new InputStreamReader(System.in));
        String s = bufferRead.readLine();

        System.out.println(s);
    }
    catch(IOException e)
    {
        e.printStackTrace();
    }

  }
}

--

import java.util.Scanner;

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

      System.out.println("Enter something here : ");

       String sWhatever;

       Scanner scanIn = new Scanner(System.in);
       sWhatever = scanIn.nextLine();

       scanIn.close();            
       System.out.println(sWhatever);
  }
}

Regards.

This is a ready to use code, merging four pdf files with itext.jar from http://central.maven.org/maven2/com/itextpdf/itextpdf/5.5.0/itextpdf-5.5.0.jar, more on http://tutorialspointexamples.com/

import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfReader;
import com.itextpdf.text.pdf.PdfWriter;

/**
 * This class is used to merge two or more 
 * existing pdf file using iText jar.
 */
public class PDFMerger {

static void mergePdfFiles(List<InputStream> inputPdfList,
        OutputStream outputStream) throws Exception{
    //Create document and pdfReader objects.
    Document document = new Document();
    List<PdfReader> readers = 
            new ArrayList<PdfReader>();
    int totalPages = 0;

    //Create pdf Iterator object using inputPdfList.
    Iterator<InputStream> pdfIterator = 
            inputPdfList.iterator();

    // Create reader list for the input pdf files.
    while (pdfIterator.hasNext()) {
            InputStream pdf = pdfIterator.next();
            PdfReader pdfReader = new PdfReader(pdf);
            readers.add(pdfReader);
            totalPages = totalPages + pdfReader.getNumberOfPages();
    }

    // Create writer for the outputStream
    PdfWriter writer = PdfWriter.getInstance(document, outputStream);

    //Open document.
    document.open();

    //Contain the pdf data.
    PdfContentByte pageContentByte = writer.getDirectContent();

    PdfImportedPage pdfImportedPage;
    int currentPdfReaderPage = 1;
    Iterator<PdfReader> iteratorPDFReader = readers.iterator();

    // Iterate and process the reader list.
    while (iteratorPDFReader.hasNext()) {
            PdfReader pdfReader = iteratorPDFReader.next();
            //Create page and add content.
            while (currentPdfReaderPage <= pdfReader.getNumberOfPages()) {
                  document.newPage();
                  pdfImportedPage = writer.getImportedPage(
                          pdfReader,currentPdfReaderPage);
                  pageContentByte.addTemplate(pdfImportedPage, 0, 0);
                  currentPdfReaderPage++;
            }
            currentPdfReaderPage = 1;
    }

    //Close document and outputStream.
    outputStream.flush();
    document.close();
    outputStream.close();

    System.out.println("Pdf files merged successfully.");
}

public static void main(String args[]){
    try {
        //Prepare input pdf file list as list of input stream.
        List<InputStream> inputPdfList = new ArrayList<InputStream>();
        inputPdfList.add(new FileInputStream("..\\pdf\\pdf_1.pdf"));
        inputPdfList.add(new FileInputStream("..\\pdf\\pdf_2.pdf"));
        inputPdfList.add(new FileInputStream("..\\pdf\\pdf_3.pdf"));
        inputPdfList.add(new FileInputStream("..\\pdf\\pdf_4.pdf"));


        //Prepare output stream for merged pdf file.
        OutputStream outputStream = 
                new FileOutputStream("..\\pdf\\MergeFile_1234.pdf");

        //call method to merge pdf files.
        mergePdfFiles(inputPdfList, outputStream);     
    } catch (Exception e) {
        e.printStackTrace();
    }
    }
}

var test = {'red':'#FF0000', 'blue':'#0000FF'};_x000D_
delete test.blue; // or use => delete test['blue'];_x000D_
console.log(test);

this deletes test.blue

def to_infinity():
    index = 0
    while True:
        yield index
        index += 1

for i in to_infinity():
    if i > 10:
        break

Adding

--protocol=tcp 

to the list of pramaters in your connection worked for me.

Supplementing the answer by p.s.w.g, here are three other ways of achieving this using lodash 4.17.5, without using _.includes():

Say you want to add object entry to an array of objects numbers, only if entry does not exist already.

let numbers = [
    { to: 1, from: 2 },
    { to: 3, from: 4 },
    { to: 5, from: 6 },
    { to: 7, from: 8 },
    { to: 1, from: 2 } // intentionally added duplicate
];

let entry = { to: 1, from: 2 };

/* 
 * 1. This will return the *index of the first* element that matches:
 */
_.findIndex(numbers, (o) => { return _.isMatch(o, entry) });
// output: 0


/* 
 * 2. This will return the entry that matches. Even if the entry exists
 *    multiple time, it is only returned once.
 */
_.find(numbers, (o) => { return _.isMatch(o, entry) });
// output: {to: 1, from: 2}


/* 
 * 3. This will return an array of objects containing all the matches.
 *    If an entry exists multiple times, if is returned multiple times.
 */
_.filter(numbers, _.matches(entry));
// output: [{to: 1, from: 2}, {to: 1, from: 2}]

If you want to return a Boolean, in the first case, you can check the index that is being returned:

_.findIndex(numbers, (o) => { return _.isMatch(o, entry) }) > -1;
// output: true

Imagine you pass a mutable string to a function but don't expect it to be changed. Then what if the function changes that string? In C++, for instance, you could simply do call-by-value (difference between std::string and std::string& parameter), but in C# it's all about references so if you passed mutable strings around every function could change it and trigger unexpected side effects.

This is just one of various reasons. Performance is another one (interned strings, for example).

I cannot help you much without a small (possibly reduced) snippit of the problem. If the problem is what I think it is then it's because a div by default takes up 100% width, and as such cannot be aligned.

What you may be after is to align the inline elements inside the div (such as text) with text-align:center; otherwise you may consider setting the div to display:inline-block;

If you do go down the inline-block route then you may have to consider my favorite IE hack.

width:100px;
display:inline-block;
zoom:1; //IE only
*display:inline; //IE only

Happy Coding :)

Try this regexp

^\s*(for|while)\s*
\(
(?P<balanced>
[^()]*
|
(?P=balanced)
\)
\s*;\s

I removed the wrapping \( \) around (?P=balanced) and moved the * to behind the any not paren sequence. I have had this work with boost xpressive, and rechecked that website (Xpressive) to refresh my memory.

I am using Laravel 5.3, mysql 5.7.12, on laravel homestead (0.5.0, I believe)

Even after explicitly setting editing /etc/mysql/my.cnf to reflect:

[mysqld]
sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

I was still receiving the error.

I had to change config/database.php from true to false:

    'mysql' => [
        'strict' => false, //behave like 5.6
        //'strict' => true //behave like 5.7
    ], 

Further reading:

https://laracasts.com/discuss/channels/servers/set-set-sql-mode-on-homestead https://mattstauffer.co/blog/strict-mode-and-other-mysql-customizations-in-laravel-5-2

I found that the HTTP interceptor method works pretty nicely, and allows additional flexibility & control. Additionally, you can cache-bust for each production release by using a release hash as the buster variable.

Here is what the dev cachebusting method looks like using Date.

app.factory('cachebustInjector', function(conf) {   
    var cachebustInjector = {
        request: function(config) {    
            // new timestamp will be appended to each new partial .html request to prevent caching in a dev environment               
            var buster = new Date().getTime();

            if (config.url.indexOf('static/angular_templates') > -1) {
                config.url += ['?v=', buster].join('');
            }
            return config;
        }
    };
    return cachebustInjector;
});

app.config(['$httpProvider', function($httpProvider) {
    $httpProvider.interceptors.push('cachebustInjector');
}]);

This is so many worlds of bad, because your question implies that you probably have gaping SQL injection holes in your application.

You should be using parameterized statements. For Java, use PreparedStatement with placeholders. You say you don't want to use parameterised statements, but you don't explain why, and frankly it has to be a very good reason not to use them because they're the simplest, safest way to fix the problem you are trying to solve.

See Preventing SQL Injection in Java. Don't be Bobby's next victim.

There is no public function in PgJDBC for string quoting and escaping. That's partly because it might make it seem like a good idea.

There are built-in quoting functions quote_literal and quote_ident in PostgreSQL, but they are for PL/PgSQL functions that use EXECUTE. These days quote_literal is mostly obsoleted by EXECUTE ... USING, which is the parameterised version, because it's safer and easier. You cannot use them for the purpose you explain here, because they're server-side functions.

Imagine what happens if you get the value ');DROP SCHEMA public;-- from a malicious user. You'd produce:

insert into test values (1,'');DROP SCHEMA public;--');

which breaks down to two statements and a comment that gets ignored:

insert into test values (1,'');
DROP SCHEMA public;
--');

Whoops, there goes your database.

There is indeed a big difference, which you should keep in mind. setScale really set the scale of your number whereas round does round your number to the specified digits BUT it "starts from the leftmost digit of exact result" as mentioned within the jdk. So regarding your sample the results are the same, but try 0.0034 instead. Here's my note about that on my blog:

http://araklefeistel.blogspot.com/2011/06/javamathbigdecimal-difference-between.html

According to Tom Hawtin

A closure is a block of code that can be referenced (and passed around) with access to the variables of the enclosing scope.

Now I'm trying to emulate the JavaScript closure example on Wikipedia, with a "straigth" translation to Java, in the hope to be useful:

//ECMAScript
var f, g;
function foo() {
  var x = 0;
  f = function() { return ++x; };
  g = function() { return --x; };
  x = 1;
  print('inside foo, call to f(): ' + f()); // "2"  
}
foo();
print('call to g(): ' + g()); // "1"
print('call to f(): ' + f()); // "2"

Now the java part: Function1 is "Functor" interface with arity 1 (one argument). Closure is the class implementing the Function1, a concrete Functor that acts as function (int -> int). In the main() method I just instantiate foo as a Closure object, replicating the calls from the JavaScript example. The IntBox class is just a simple container, it behave like an array of 1 int:

int a[1] = {0}

interface Function1   {
    public final IntBag value = new IntBag();
    public int apply();
}

class Closure implements Function1 {
   private IntBag x = value;
   Function1 f;
   Function1 g;

   @Override
   public int apply()  {
    // print('inside foo, call to f(): ' + f()); // "2"
    // inside apply, call to f.apply()
       System.out.println("inside foo, call to f.apply(): " + f.apply());
       return 0;
   }

   public Closure() {
       f = new Function1() {
           @Override
           public int apply()  {
               x.add(1);
                return x.get();
           }
       };
       g = new Function1() {
           @Override
           public int apply()  {
               x.add(-1);
               return x.get();
           }
       };
    // x = 1;
       x.set(1);
   }
}
public class ClosureTest {
    public static void main(String[] args) {
        // foo()
        Closure foo = new Closure();
        foo.apply();
        // print('call to g(): ' + g()); // "1"
        System.out.println("call to foo.g.apply(): " + foo.g.apply());
        // print('call to f(): ' + f()); // "2"
        System.out.println("call to foo.f.apply(): " + foo.f.apply());

    }
}

It prints:

inside foo, call to f.apply(): 2
call to foo.g.apply(): 1
call to foo.f.apply(): 2 

Just use the interface provided by MySql's GUI Tool (SQLyog):

Click on User manager:

Now, if you want to grant access FOR ANY OTHER REMOTE PC, just make sure that, just like in the underneath picture, the Host field value is % (which is the wildcard)

if you post a file from mobile device or other

    byte[] fileData = null;
    using (var binaryReader = new BinaryReader(Request.Files[0].InputStream))
    {
        fileData = binaryReader.ReadBytes(Request.Files[0].ContentLength);
    }

If you want just a first selected row, you can:

select fname from MyTbl where rownum = 1

You can also use analytic functions to order and take the top x:

select max(fname) over (rank() order by some_factor) from MyTbl

How about trying to do a simple update on this row first (without really changing any data)? After that you can proceed with the row like in was selected for update.

UPDATE dbo.Customer SET FieldForLock = FieldForLock WHERE CustomerID = @CustomerID
/* do whatever you want */

Edit: you should wrap it in a transaction of course

Edit 2: another solution is to use SERIALIZABLE isolation level

SQL injection should not be prevented by trying to validate your input; instead, that input should be properly escaped before being passed to the database.

How to escape input totally depends on what technology you are using to interface with the database. In most cases and unless you are writing bare SQL (which you should avoid as hard as you can) it will be taken care of automatically by the framework so you get bulletproof protection for free.

You should explore this question further after you have decided exactly what your interfacing technology will be.

NumberFormatException invoke when you ll try to convert inavlid String for eg:"abc" value to integer..

this is valid string is eg"123". in your case split by space..

split(" "); will split line by " " by space..

jEdit:

With the keyboard: press Alt-\ (Opt-\ in Mac OS X) to toggle between rectangular and normal selection mode; then use Shift plus arrow keys to extend selection. You can switch back to regular selection mode with another Alt-\ (Opt-\ in Mac OS X), if desired.

With the mouse: Either use Alt-\ (Opt-\ in Mac OS X) as above to toggle rectangular selection mode, then drag as usual; or Ctrl-drag (Cmd-drag in Mac OS X). You can switch back to regular selection mode with another Alt-\ (Opt-\ in Mac OS X), if desired.

Actually, you can even make a non-rectangular selection the normal way and then hit Alt-\ (Opt-\ in Mac OS X) to convert it into a rectangular one.

Spark 1.6.2:

log4j = sc._jvm.org.apache.log4j
log4j.LogManager.getRootLogger().setLevel(log4j.Level.ERROR)

Spark 2.x:

spark.sparkContext.setLogLevel('WARN')

(spark being the SparkSession)

Alternatively the old methods,

Rename conf/log4j.properties.template to conf/log4j.properties in Spark Dir.

In the log4j.properties, change log4j.rootCategory=INFO, console to log4j.rootCategory=WARN, console

Different log levels available:

• OFF (most specific, no logging)
• FATAL (most specific, little data)
• ERROR - Log only in case of Errors
• WARN - Log only in case of Warnings or Errors
• INFO (Default)
• DEBUG - Log details steps (and all logs stated above)
• TRACE (least specific, a lot of data)
• ALL (least specific, all data)

The difference between PUT and PATCH is that:

1. PUT is required to be idempotent. In order to achieve that, you have to put the entire complete resource in the request body.
2. PATCH can be non-idempotent. Which implies it can also be idempotent in some cases, such as the cases you described.

PATCH requires some "patch language" to tell the server how to modify the resource. The caller and the server need to define some "operations" such as "add", "replace", "delete". For example:

GET /contacts/1
{
  "id": 1,
  "name": "Sam Kwee",
  "email": "[email protected]",
  "state": "NY",
  "zip": "10001"
}

PATCH /contacts/1
{
 [{"operation": "add", "field": "address", "value": "123 main street"},
  {"operation": "replace", "field": "email", "value": "[email protected]"},
  {"operation": "delete", "field": "zip"}]
}

GET /contacts/1
{
  "id": 1,
  "name": "Sam Kwee",
  "email": "[email protected]",
  "state": "NY",
  "address": "123 main street",
}

Instead of using explicit "operation" fields, the patch language can make it implicit by defining conventions like:

in the PATCH request body:

1. The existence of a field means "replace" or "add" that field.
2. If the value of a field is null, it means delete that field.

With the above convention, the PATCH in the example can take the following form:

PATCH /contacts/1
{
  "address": "123 main street",
  "email": "[email protected]",
  "zip":
}

Which looks more concise and user-friendly. But the users need to be aware of the underlying convention.

With the operations I mentioned above, the PATCH is still idempotent. But if you define operations like: "increment" or "append", you can easily see it won't be idempotent anymore.

If you have simple dropdown like:

<select name="status" id="status">
    <option value="1">Active</option>
    <option value="0">Inactive</option>
</select>

Then you can use this code for getting value:

$(function(){

 $("#status").change(function(){
     var status = this.value;
     alert(status);
   if(status=="1")
     $("#icon_class, #background_class").hide();// hide multiple sections
  });

});

My requirements included:

• must honor the dataContracts
• must deserialize dates in the format received in service
• must handle colelctions
• must target 3.5
• must NOT add an external dependency, especially not Newtonsoft (I'm creating a distributable package myself)
• must not be deserialized by hand

My solution in the end was to use SimpleJson(https://github.com/facebook-csharp-sdk/simple-json).

Although you can install it via a nuget package, I included just that single SimpleJson.cs file (with the MIT license) in my project and referenced it.

I hope this helps someone.

I have done this with OOP style

$res=[1=>[2,3,7,8,19],3=>[4,12],2=>[5,9],5=>6,7=>[10,13],10=>[11,18],8=>[14,20],12=>15,6=>[16,17]];
class MultiToSingle{
public $result=[];
public function __construct($array){
    if(!is_array($array)){
        echo "Give a array";
    }
    foreach($array as $key => $value){
        if(is_array($value)){
            for($i=0;$i<count($value);$i++){
                $this->result[]=$value[$i];
            }  
        }else{
            $this->result[]=$value;
        }
    }
}
}

$obj= new MultiToSingle($res);
$array=$obj->result;
print_r($array);

String[] tblHead={"Item Name","Price","Qty","Discount"};
DefaultTableModel dtm=new DefaultTableModel(tblHead,0);
JTable tbl=new JTable(dtm);
String[] item={"A","B","C","D"};
dtm.addRow(item);

Here;this is the solution.

Listen , Make Following changes in your code if you want to show empty datetimepicker and get null when no date is selected by user, else save date.

1. Set datetimepicker FORMAT property to custom.
2. set CUSTOM FORMAT property to empty string " ".
3. set its TAG to 0 by default.
4. Register Event for datetimepicker VALUECHANGED.

Now real work starts

if user will interact with datetimepicker its VALUECHANGED event will be called and there set its TAG property to 1.

Final Step

Now when saving, check if its TAG is zero, then save NULL date else if TAG is 1 then pick and save Datetime picker value.

It Works like a charm.

Now if you want its value be changed back to empty by user interaction, then add checkbox and show text "Clear" with this checkbox. if user wants to clear date, simply again set its CUSTOM FORMAT property to empty string " ", and set its TAG back to 0. Thats it..

If you are using SQL Server 2016 or newer, you can also select it as JSON result and display it in JSON Visualizer, it's much easier to read it than in XML and allows you to filter results.

DECLARE @v nvarchar(max) = (SELECT * FROM Suppliers FOR JSON AUTO)

Try to run as an administrator... Run terminal, type sudo arduino, type your root password, and... :)

Let's assume we're working with the following representation of data (two columns, k and v, where k contains three entries, two unique:

+---+---+
|  k|  v|
+---+---+
|foo|  1|
|bar|  2|
|foo|  3|
+---+---+

With a Pandas dataframe:

import pandas as pd
p_df = pd.DataFrame([("foo", 1), ("bar", 2), ("foo", 3)], columns=("k", "v"))
p_df['k'].unique()

This returns an ndarray, i.e. array(['foo', 'bar'], dtype=object)

You asked for a "pyspark dataframe alternative for pandas df['col'].unique()". Now, given the following Spark dataframe:

s_df = sqlContext.createDataFrame([("foo", 1), ("bar", 2), ("foo", 3)], ('k', 'v'))

If you want the same result from Spark, i.e. an ndarray, use toPandas():

s_df.toPandas()['k'].unique()

Alternatively, if you don't need an ndarray specifically and just want a list of the unique values of column k:

s_df.select('k').distinct().rdd.map(lambda r: r[0]).collect()

Finally, you can also use a list comprehension as follows:

[i.k for i in s_df.select('k').distinct().collect()]

When you get frustrated trying this:

CASE WHEN last_name IS NULL THEN '' ELSE ' '+last_name END

Try this one instead:

CASE LEN(ISNULL(last_Name,''))
WHEN 0 THEN '' 
ELSE ' ' + last_name
END AS newlastName

LEN(ISNULL(last_Name,'')) measures the number of characters in that column, which will be zero whether it's empty, or NULL, therefore WHEN 0 THEN will evaluate to true and return the '' as expected.

I hope this is a helpful alternative.

I have included this test case for sql server 2008 and above:

DECLARE @last_Name varchar(50) = NULL

SELECT 
CASE LEN(ISNULL(@last_Name,''))
WHEN 0 THEN '' 
ELSE 'A ' + @last_name
END AS newlastName

SET @last_Name = 'LastName'

SELECT 
CASE LEN(ISNULL(@last_Name,''))
WHEN 0 THEN '' 
ELSE 'A ' + @last_name
END AS newlastName

Adding overflow:auto before setting overflow-y seems to do the trick in Google Chrome.

{
    width:249px;
    height:299px;
    background-color:Gray;
    overflow: auto;
    overflow-y: scroll;
    max-width:230px;
    max-height:100px;
}

Option #1

Instead of picking the binary/raw data into a variable and then writing, you can use CURLOPT_FILE option to directly show a file to the curl for the downloading.

Here is the function:

// takes URL of image and Path for the image as parameter
function download_image1($image_url, $image_file){
    $fp = fopen ($image_file, 'w+');              // open file handle

    $ch = curl_init($image_url);
    // curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // enable if you want
    curl_setopt($ch, CURLOPT_FILE, $fp);          // output to file
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 1000);      // some large value to allow curl to run for a long time
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
    // curl_setopt($ch, CURLOPT_VERBOSE, true);   // Enable this line to see debug prints
    curl_exec($ch);

    curl_close($ch);                              // closing curl handle
    fclose($fp);                                  // closing file handle
}

And here is how you should call it:

// test the download function
download_image1("http://www.gravatar.com/avatar/10773ae6687b55736e171c038b4228d2", "local_image1.jpg");

Option #2

Now, If you want to download a very large file, that case above function may not become handy. You can use the below function this time for handling a big file. Also, you can print progress(in % or in any other format) if you want. Below function is implemented using a callback function that writes a chunk of data in to the file in to the progress of downloading.

// takes URL of image and Path for the image as parameter
function download_image2($image_url){
    $ch = curl_init($image_url);
    // curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // enable if you want
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 1000);      // some large value to allow curl to run for a long time
    curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
    curl_setopt($ch, CURLOPT_WRITEFUNCTION, "curl_callback");
    // curl_setopt($ch, CURLOPT_VERBOSE, true);   // Enable this line to see debug prints
    curl_exec($ch);

    curl_close($ch);                              // closing curl handle
}

/** callback function for curl */
function curl_callback($ch, $bytes){
    global $fp;
    $len = fwrite($fp, $bytes);
    // if you want, you can use any progress printing here
    return $len;
}

And here is how to call this function:

// test the download function
$image_file = "local_image2.jpg";
$fp = fopen ($image_file, 'w+');              // open file handle
download_image2("http://www.gravatar.com/avatar/10773ae6687b55736e171c038b4228d2");
fclose($fp);                                  // closing file handle

Something like this should do it for you.

Sub CombineColumns1()
    Dim xRng As Range
    Dim i As Long, j As Integer
    Dim xNextRow As Long
    Dim xTxt As String
    On Error Resume Next
    With ActiveSheet
        xTxt = .RangeSelection.Address
        Set xRng = Application.InputBox("please select the data range", "Kutools for Excel", xTxt, , , , , 8)
        If xRng Is Nothing Then Exit Sub
        j = xRng.Columns(1).Column
        For i = 4 To xRng.Columns.Count Step 3
            'Need to recalculate the last row, as some of the final columns may not have data in all rows
            xNextRow = .Cells(.Rows.Count, j).End(xlUp).Row + 1

            .Range(xRng.Cells(1, i), xRng.Cells(xRng.Rows.Count, i + 2)).Copy .Cells(xNextRow, j)
            .Range(xRng.Cells(1, i), xRng.Cells(xRng.Rows.Count, i + 2)).Clear
        Next
    End With
End Sub

You could do this too.

Sub TransposeFormulas()
    Dim vFormulas As Variant
    Dim oSel As Range
    If TypeName(Selection) <> "Range" Then
        MsgBox "Please select a range of cells first.", _
                vbOKOnly + vbInformation, "Transpose formulas"
        Exit Sub
    End If
    Set oSel = Selection
    vFormulas = oSel.Formula
    vFormulas = Application.WorksheetFunction.Transpose(vFormulas)
    oSel.Offset(oSel.Rows.Count + 2).Resize(oSel.Columns.Count, oSel.Rows.Count).Formula = vFormulas
End Sub

See this for more info.

http://bettersolutions.com/vba/arrays/transposing.htm

If you clone a repository and instantly see pending changes, then the repository is in an inconsistent state. Please do NOT comment out * text=auto from the .gitattributes file. That was put there specifically because the owner of the repository wants all files stored consistently with LF line endings.

As stated by HankCa, following the instructions on https://help.github.com/articles/dealing-with-line-endings/ is the way to go to fix the problem. Easy button:

git clone git@host:repo-name
git checkout -b normalize-line-endings
git add .
git commit -m "Normalize line endings"
git push
git push -u origin normalize-line-endings

Then merge (or pull request) the branch to the owner of the repo.

Try this:

find . -name "*.pdf" -type f -exec cp {} ./pdfsfolder \;

I think this code show the procedure more clear.

<?php

$a = array ('zero','one','two', 'three');

foreach ($a as &$v) {
}

var_dump($a);

foreach ($a as $v) {
  var_dump($a);
}

Result: (Take attention on the last two array)

array(4) {
  [0]=>
  string(4) "zero"
  [1]=>
  string(3) "one"
  [2]=>
  string(3) "two"
  [3]=>
  &string(5) "three"
}
array(4) {
  [0]=>
  string(4) "zero"
  [1]=>
  string(3) "one"
  [2]=>
  string(3) "two"
  [3]=>
  &string(4) "zero"
}
array(4) {
  [0]=>
  string(4) "zero"
  [1]=>
  string(3) "one"
  [2]=>
  string(3) "two"
  [3]=>
  &string(3) "one"
}
array(4) {
  [0]=>
  string(4) "zero"
  [1]=>
  string(3) "one"
  [2]=>
  string(3) "two"
  [3]=>
  &string(3) "two"
}
array(4) {
  [0]=>
  string(4) "zero"
  [1]=>
  string(3) "one"
  [2]=>
  string(3) "two"
  [3]=>
  &string(3) "two"
}

This appears to be a limitation in git-bash. The recommendation to use winpty python.exe worked for me. See Python not working in the command line of git bash for additional information.

My guess is that the directory ~/bin/sbt/bin is not in your PATH.

To execute programs or scripts that are in the current directory you need to prefix the command with ./, as in:

./sbt

This is a security feature in linux, so to prevent overriding of system commands (and other programs) by a malicious party dropping a file in your home directory (for example). Imagine a script called 'ls' that emails your /etc/passwd file to 3rd party before executing the ls command... Or one that executes 'rm -rf .'...

That said, unless you need something specific from the latest source code, you're best off doing what paradigmatic said in his post, and install it from the Typesafe repository.

data = 'data you want inside the file'.

You can use File.write('name of file here', data)

A previous answer using LPAD() is optimal. However, in the event you want to do special or advanced processing, here is a method that allows more iterative control over the padding. Also serves as an example using other constructs to achieve the same thing.

UPDATE
    mytable
SET
    mycolumn = CONCAT(
        REPEAT(
            "0",
            8 - LENGTH(mycolumn)
        ),
        mycolumn
    )
WHERE
    LENGTH(mycolumn) < 8;

The trouble with DateTime.UtcNow and DateTime.Now is that, depending on the computer and operating system, it may only be accurate to between 10 and 15 milliseconds. However, on windows computers one can use by using the low level function GetSystemTimePreciseAsFileTime to get microsecond accuracy, see the function GetTimeStamp() below.

    [System.Security.SuppressUnmanagedCodeSecurity, System.Runtime.InteropServices.DllImport("kernel32.dll")]
    static extern void GetSystemTimePreciseAsFileTime(out FileTime pFileTime);

    [System.Runtime.InteropServices.StructLayout(System.Runtime.InteropServices.LayoutKind.Sequential)]
    public struct FileTime  {
        public const long FILETIME_TO_DATETIMETICKS = 504911232000000000;   // 146097 = days in 400 year Gregorian calendar cycle. 504911232000000000 = 4 * 146097 * 86400 * 1E7
        public uint TimeLow;    // least significant digits
        public uint TimeHigh;   // most sifnificant digits
        public long TimeStamp_FileTimeTicks { get { return TimeHigh * 4294967296 + TimeLow; } }     // ticks since 1-Jan-1601 (1 tick = 100 nanosecs). 4294967296 = 2^32
        public DateTime dateTime { get { return new DateTime(TimeStamp_FileTimeTicks + FILETIME_TO_DATETIMETICKS); } }
    }

    public static DateTime GetTimeStamp() { 
        FileTime ft; GetSystemTimePreciseAsFileTime(out ft);
        return ft.dateTime;
    }

In this state:

The thread is reading and processing rows for a SELECT statement, and sending data to the client.

Because operations occurring during this this state tend to perform large amounts of disk access (reads).

That's why it takes more time to complete and so is the longest-running state over the lifetime of a given query.

I had to do 2 steps:

• follow Tiep Phan solution ... edit config.inc.php file ...

• follow Mahmoud Zalt solution ... change password within phpmyadmin

Convert a JSON string into an object in C#. Using below test case.. its worked for me. Here "MenuInfo" is my C# class object.

JsonTextReader reader = null;
try
{
    WebClient webClient = new WebClient();
    JObject result = JObject.Parse(webClient.DownloadString("YOUR URL"));
    reader = new JsonTextReader(new System.IO.StringReader(result.ToString()));
    reader.SupportMultipleContent = true;
}
catch(Exception)
{}

JsonSerializer serializer = new JsonSerializer();
MenuInfo menuInfo = serializer.Deserialize<MenuInfo>(reader);

Try to invert #one and #two. Have a look to this fiddle : http://jsfiddle.net/hu2pk/3/

Update

In SVG, z-index is defined by the order the element appears in the document. You can have a look to this page too if you want : https://stackoverflow.com/a/482147/1932751

This may help if someone want it in PHP

$variable ="candy_name=M&M";
$variable = str_replace("&", "%26", $variable);

$fondo: url(/grid/assets/img/backimage.png);    
{ padding: 0; margin: 0; } 
body { 
    ::before{
        content:"" ; height: 1008px; width: 100%; display: flex; position: absolute; 
        background-image: $fondo ; background-repeat: no-repeat ; background-position: 
        center; background-size: cover; filter: blur(1.6rem);
    }
}

Numeric precision refers to the maximum number of digits that are present in the number.

ie 1234567.89 has a precision of 9

Numeric scale refers to the maximum number of decimal places

ie 123456.789 has a scale of 3

Thus the maximum allowed value for decimal(5,2) is 999.99

I couldn't get svn status -q to work. Assuming you are on a linux box, to see only the files that are modified, run: svn status | grep 'M ' On windows I am not sure what you would do, maybe something with 'FindStr'

If you revise your regular expression like this:

drupal-6.14/(?=sites(?!/all|/default)).*
             ^^

...then it will match all inputs that contain drupal-6.14/ followed by sites followed by anything other than /all or /default. For example:

drupal-6.14/sites/foo
drupal-6.14/sites/bar
drupal-6.14/sitesfoo42
drupal-6.14/sitesall

Changing ?= to ?! to match your original regex simply negates those matches:

drupal-6.14/(?!sites(?!/all|/default)).*
             ^^

So, this simply means that drupal-6.14/ now cannot be followed by sites followed by anything other than /all or /default. So now, these inputs will satisfy the regex:

drupal-6.14/sites/all
drupal-6.14/sites/default
drupal-6.14/sites/all42

But, what may not be obvious from some of the other answers (and possibly your question) is that your regex will also permit other inputs where drupal-6.14/ is followed by anything other than sites as well. For example:

drupal-6.14/foo
drupal-6.14/xsites

Conclusion: So, your regex basically says to include all subdirectories of drupal-6.14 except those subdirectories of sites whose name begins with anything other than all or default.

Using JSON.stringify(data);:

$.ajax({
    url: ...
    success:function(data){
        JSON.stringify(data); //to string
        alert(data.you_value); //to view you pop up
    }
});

shutil.copy and shutil.copy2 are copying files.

shutil.copytree copies a folder with all the files and all subfolders. shutil.copytree is using shutil.copy2 to copy the files.

So the analog to cp -r you are saying is the shutil.copytree because cp -r targets and copies a folder and its files/subfolders like shutil.copytree. Without the -r cp copies files like shutil.copy and shutil.copy2 do.

What you should know about this

this (aka "the context") is a special keyword inside each function and its value only depends on how the function was called, not how/when/where it was defined. It is not affected by lexical scopes like other variables (except for arrow functions, see below). Here are some examples:

function foo() {
    console.log(this);
}

// normal function call
foo(); // `this` will refer to `window`

// as object method
var obj = {bar: foo};
obj.bar(); // `this` will refer to `obj`

// as constructor function
new foo(); // `this` will refer to an object that inherits from `foo.prototype`

To learn more about this, have a look at the MDN documentation.

How to refer to the correct this

Use arrow functions

ECMAScript 6 introduced arrow functions, which can be thought of as lambda functions. They don't have their own this binding. Instead, this is looked up in scope just like a normal variable. That means you don't have to call .bind. That's not the only special behavior they have, please refer to the MDN documentation for more information.

function MyConstructor(data, transport) {
    this.data = data;
    transport.on('data', () => alert(this.data));
}

Don't use this

You actually don't want to access this in particular, but the object it refers to. That's why an easy solution is to simply create a new variable that also refers to that object. The variable can have any name, but common ones are self and that.

function MyConstructor(data, transport) {
    this.data = data;
    var self = this;
    transport.on('data', function() {
        alert(self.data);
    });
}

Since self is a normal variable, it obeys lexical scope rules and is accessible inside the callback. This also has the advantage that you can access the this value of the callback itself.

Explicitly set this of the callback - part 1

It might look like you have no control over the value of this because its value is set automatically, but that is actually not the case.

Every function has the method .bind ^[docs], which returns a new function with this bound to a value. The function has exactly the same behavior as the one you called .bind on, only that this was set by you. No matter how or when that function is called, this will always refer to the passed value.

function MyConstructor(data, transport) {
    this.data = data;
    var boundFunction = (function() { // parenthesis are not necessary
        alert(this.data);             // but might improve readability
    }).bind(this); // <- here we are calling `.bind()` 
    transport.on('data', boundFunction);
}

In this case, we are binding the callback's this to the value of MyConstructor's this.

Note: When a binding context for jQuery, use jQuery.proxy ^[docs] instead. The reason to do this is so that you don't need to store the reference to the function when unbinding an event callback. jQuery handles that internally.

Set this of the callback - part 2

Some functions/methods which accept callbacks also accept a value to which the callback's this should refer to. This is basically the same as binding it yourself, but the function/method does it for you. Array#map ^[docs] is such a method. Its signature is:

array.map(callback[, thisArg])

The first argument is the callback and the second argument is the value this should refer to. Here is a contrived example:

var arr = [1, 2, 3];
var obj = {multiplier: 42};

var new_arr = arr.map(function(v) {
    return v * this.multiplier;
}, obj); // <- here we are passing `obj` as second argument

Note: Whether or not you can pass a value for this is usually mentioned in the documentation of that function/method. For example, jQuery's $.ajax method ^[docs] describes an option called context:

This object will be made the context of all Ajax-related callbacks.

Common problem: Using object methods as callbacks/event handlers

Another common manifestation of this problem is when an object method is used as callback/event handler. Functions are first-class citizens in JavaScript and the term "method" is just a colloquial term for a function that is a value of an object property. But that function doesn't have a specific link to its "containing" object.

Consider the following example:

function Foo() {
    this.data = 42,
    document.body.onclick = this.method;
}

Foo.prototype.method = function() {
    console.log(this.data);
};

The function this.method is assigned as click event handler, but if the document.body is clicked, the value logged will be undefined, because inside the event handler, this refers to the document.body, not the instance of Foo.
As already mentioned at the beginning, what this refers to depends on how the function is called, not how it is defined.
If the code was like the following, it might be more obvious that the function doesn't have an implicit reference to the object:

function method() {
    console.log(this.data);
}


function Foo() {
    this.data = 42,
    document.body.onclick = this.method;
}

Foo.prototype.method = method;

The solution is the same as mentioned above: If available, use .bind to explicitly bind this to a specific value

document.body.onclick = this.method.bind(this);

or explicitly call the function as a "method" of the object, by using an anonymous function as callback / event handler and assign the object (this) to another variable:

var self = this;
document.body.onclick = function() {
    self.method();
};

or use an arrow function:

document.body.onclick = () => this.method();

try to add this section in your web.config file on web server, sometimes it happens with php pages:

<httpProtocol>
    <customHeaders>
        <clear />
        <add name="X-UA-Compatible" value="IE=edge" />
    </customHeaders>
</httpProtocol>

I ran the code below, once with foo taking the shared_ptr by const& and again with foo taking the shared_ptr by value.

void foo(const std::shared_ptr<int>& p)
{
    static int x = 0;
    *p = ++x;
}

int main()
{
    auto p = std::make_shared<int>();
    auto start = clock();
    for (int i = 0; i < 10000000; ++i)
    {
        foo(p);
    }    
    std::cout << "Took " << clock() - start << " ms" << std::endl;
}

Using VS2015, x86 release build, on my intel core 2 quad (2.4GHz) processor

const shared_ptr&     - 10ms  
shared_ptr            - 281ms 

The copy by value version was an order of magnitude slower.
If you are calling a function synchronously from the current thread, prefer the const& version.

This worked for me:

=(col_name]/60/60/24)+(col_name-1)

I have recently started working on a project using Vue JS, JSON Schema. I am trying to access nested JSON Objects from a JSON Schema file in the Vue app. I tried the below code and now I can load different JSON objects inside different Vue template tags. In the script tag add the below code

import  {JsonObject1name, JsonObject2name} from 'your Json file path';

Now you can access JsonObject1,2 names in data section of export default part as below:

data: () => ({ 
  
  schema: JsonObject1name,
  schema1: JsonObject2name,   
  
  model: {} 
}),

Now you can load the schema, schema1 data inside Vue template according to your requirement. See below code for example :

      <SchemaForm id="unique name representing your Json object1" class="form"  v-model="model" :schema="schema" :components="components">
      </SchemaForm>  

      <SchemaForm id="unique name representing your Json object2" class="form" v-model="model" :schema="schema1" :components="components">
      </SchemaForm>

SchemaForm is the local variable name for @formSchema/native library. I have implemented the data of different JSON objects through forms in different CSS tabs.

I hope this answer helps someone. I can help if there are any questions.

[I understand this is an old thread, just adding some more detail] The two answers by Mark and Jon Hanna sum up the differences, albeit it may interest some that

Guid.NewGuid()

Eventually calls CoCreateGuid (a COM call to Ole32) (reference here) and the actual work is done by UuidCreate.

Guid.Empty is meant to be used to check if a Guid contains all zeroes. This could also be done via comparing the value of the Guid in question with new Guid()

So, if you need a unique identifier, the answer is Guid.NewGuid()

Remove both http and https setting by using commands.

git config --global --unset http.proxy

git config --global --unset https.proxy

It's weekend now!

    public async void Go()
    {
        Console.WriteLine("Start fosterage...");

        var t1 = Sleep(5000, "Kevin");
        var t2 = Sleep(3000, "Jerry");
        var result = await Task.WhenAll(t1, t2);

        Console.WriteLine($"My precious spare time last for only {result.Max()}ms");
        Console.WriteLine("Press any key and take same beer...");
        Console.ReadKey();
    }

    private static async Task<int> Sleep(int ms, string name)
    {
            Console.WriteLine($"{name} going to sleep for {ms}ms :)");
            await Task.Delay(ms);
            Console.WriteLine("${name} waked up after {ms}ms :(";
            return ms;
    }

Port 4200 is already in use. Use '--port' to specify a different port

This means that you already have another service running on port 4200. If this is the case you can either . shut down the other service. use the --port flag when running ng serve like this:

 ng serve --port 9001

Another thing to notice is that, on some machines, the domain localhost may not work. You may see a set of numbers such as 127.0.0.1. When you run ng serve it should show you what URL the server is running on, so be sure to read the messages on your machine to find your exact development URL.

I don't think there's any one module that you can easily download to implement scp, however you might find this helpful: http://www.ibm.com/developerworks/linux/library/l-twist4.html

Jon Skeets answer is right and has deserved my upvote, just adding this slightly different solution for completeness:

import static java.time.temporal.TemporalAdjusters.lastDayOfMonth;

LocalDate initial = LocalDate.of(2014, 2, 13);
LocalDate start = initial.withDayOfMonth(1);
LocalDate end = initial.with(lastDayOfMonth());

Trying to upload a GoDaddy certificate to AWS I failed several times, but in the end it was pretty simple. No need to convert anything to .pem. You just have to be sure to include the GoDaddy bundle certificate in the chain parameter, e.g.

aws iam upload-server-certificate
    --server-certificate-name mycert
    --certificate-body file://try2/40271b1b25236fd1.crt
    --private-key file://server.key
    --path /cloudfront/production/
    --certificate-chain file://try2/gdig2_bundle.crt

And to delete your previous failed upload you can do

aws iam delete-server-certificate --server-certificate-name mypreviouscert

Try like below,

$('input[type=text]').val (function () {
    return this.value.toUpperCase();
})

You should use input[type=text] instead of :input or input as I believe your intention are to operate on textbox only.

If you are using Windows PowerShell, the easiest way is to:

cat ~/.ssh/id_<key-type-here>.pub | clip

That will copy the key to your clipboard for easy pasting.

So, in my instance, I use ed25519 since RSA is now fairly hackable:

cat ~/.ssh/id_ed25519.pub | clip

Because I find myself doing this a lot, I created a function and set a simple alias I could remember in my PowerShell profile (learn more about PowerShell profiles here. Just add this to your Microsoft.PowerShell_profile.ps1:

function Copy-SSHKey {
    Get-Content ~/.ssh/id_ed25519.pub | clip
}

Set_Alias -Name sshkey -Value Copy-SSHKey

Then, in a PowerShell console, run . $profile to load the functions. Then from now on all you will need to do is run sshkey, and then paste the key into wherever you need via the clipboard.

Following resolved problem in my local machine:

A. First, ensure that you are using the correct log on details to connect to Bitbucket Server (ie. a username/password/SSH key that belongs to you) 

B. Then, ensure that the name/email address is correctly set in your local Git configuration: Set your local Git configuration for the account that you are trying to push under (the check asserts that you are the person who committed the files) * Note that this is case sensitive, both for name and email address * It is also space sensitive - some company accounts have extra spaces/characters in their name eg. "Contractor/ space space(LDN)".  You must include the same number of spaces in your configuration as on Bitbucket Server.  Check this in Notepad if stuck.

C. If you were using the wrong account, simply switch your account credentials (username/password/SSH key) and try pushing again.

D. Else, if your local configuration incorrect you will need to amend it

For MAC

open -a TextEdit.app ~/.gitconfig

NOTE: You will have to fix up the old commits that you were trying to push.

1. Amend your last commit:

   > git commit --amend --reset-author
   
     
   <save and quit the commit file text editor that opens, if Vim then
   :wq to save and quit>
   

2. Try re-pushing your commits:

   > git push
   

I found this ans more pythonic:

if type(aObject) is str:
    #do your stuff here
    pass

since type objects are singleton, is can be used to do the compare the object to the str type

You can use numpy's slicing, simply start:stop:step.

>>> xs
array([1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4])
>>> xs[1::4]
array([2, 2, 2])

This creates a view of the the original data, so it's constant time. It'll also reflect changes to the original array and keep the whole original array in memory:

>>> a
array([1, 2, 3, 4, 5])
>>> b = a[::2]         # O(1), constant time
>>> b[:] = 0           # modifying the view changes original array
>>> a                  # original array is modified
array([0, 2, 0, 4, 0])

so if either of the above things are a problem, you can make a copy explicitly:

>>> a
array([1, 2, 3, 4, 5])
>>> b = a[::2].copy()  # explicit copy, O(n)
>>> b[:] = 0           # modifying the copy
>>> a                  # original is intact
array([1, 2, 3, 4, 5])

This isn't constant time, but the result isn't tied to the original array. The copy also contiguous in memory, which can make some operations on it faster.

Use sudo apt-get install --only-upgrade nodejs to upgrade node (and only upgrade node) using the package manager.

The package name is nodejs, see https://stackoverflow.com/a/18130296/4578017 for details.

You can also use nvm to install and update node.

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.1/install.sh | bash

Then restart the terminal, use nvm ls-remote to get latest version list of node, and use nvm install lts/* to install latest LTS version.

nvm is more recommended way to install or update node, even if you are not going to switch versions.

You could also use alias_attribute if you still want to be able to refer to them as tasks as well:

class User < ActiveRecord::Base
  alias_attribute :jobs, :tasks

  has_many :tasks
end

The fastest way.

1. Make sure you don't have ROOT app deployed, undeploy if you have one

2. Rename your war to ROOT.war, deploy, thats all, no configuration changes needed

AFAIK, no, you can't. You have to remove it and recreate it. Actually, you can overwrite a symlink and thus update the pathname referenced by it:

$ ln -s .bashrc test
$ ls -al test
lrwxrwxrwx 1 pascal pascal 7 2009-09-23 17:12 test -> .bashrc
$ ln -s .profile test
ln: creating symbolic link `test': File exists
$ ln -s -f .profile test
$ ls -al test
lrwxrwxrwx 1 pascal pascal 8 2009-09-23 17:12 test -> .profile

EDIT: As the OP pointed out in a comment, using the --force option will make ln perform a system call to unlink() before symlink(). Below, the output of strace on my linux box proving it:

$ strace -o /tmp/output.txt ln -s -f .bash_aliases test
$ grep -C3 ^unlink /tmp/output.txt 
lstat64("test", {st_mode=S_IFLNK|0777, st_size=7, ...}) = 0
stat64(".bash_aliases", {st_mode=S_IFREG|0644, st_size=2043, ...}) = 0
symlink(".bash_aliases", "test")        = -1 EEXIST (File exists)
unlink("test")                          = 0
symlink(".bash_aliases", "test")        = 0
close(0)                                = 0
close(1)                                = 0

So I guess the final answer is "no".

EDIT: The following is copied from Arto Bendiken's answer over on unix.stackexchange.com, circa 2016.

This can indeed be done atomically with rename(2), by first creating the new symlink under a temporary name and then cleanly overwriting the old symlink in one go. As the man page states:

If newpath refers to a symbolic link the link will be overwritten.

In the shell, you would do this with mv -T as follows:

$ mkdir a b
$ ln -s a z
$ ln -s b z.new
$ mv -T z.new z

You can strace that last command to make sure it is indeed using rename(2) under the hood:

$ strace mv -T z.new z
lstat64("z.new", {st_mode=S_IFLNK|0777, st_size=1, ...}) = 0
lstat64("z", {st_mode=S_IFLNK|0777, st_size=1, ...}) = 0
rename("z.new", "z")                    = 0

Note that in the above, both mv -T and strace are Linux-specific.

On FreeBSD, use mv -h alternately.

Editor's note: This is how Capistrano has done it for years now, ever since ~2.15. See this pull request.

You need to use the full property name for each:

background-color: #6DB3F2;
background-image: url('images/checked.png');

Or, you can use the background shorthand and specify it all in one line:

background: url('images/checked.png'), #6DB3F2;

Change

die (mysqli_error()); 

to

die('Error: ' . mysqli_error($myConnection));

in the query

$query = mysqli_query($myConnection, $sqlCommand) or die (mysqli_error()); 

package - takes the compiled code and package it in its distributable format, such as a JAR or WAR file. install - install the package into the local repository, for use as a dependency in other projects locally

Why is it needed?

When data is stored on disk-based storage devices, it is stored as blocks of data. These blocks are accessed in their entirety, making them the atomic disk access operation. Disk blocks are structured in much the same way as linked lists; both contain a section for data, a pointer to the location of the next node (or block), and both need not be stored contiguously.

Due to the fact that a number of records can only be sorted on one field, we can state that searching on a field that isn’t sorted requires a Linear Search which requires N/2 block accesses (on average), where N is the number of blocks that the table spans. If that field is a non-key field (i.e. doesn’t contain unique entries) then the entire tablespace must be searched at N block accesses.

Whereas with a sorted field, a Binary Search may be used, which has log2 N block accesses. Also since the data is sorted given a non-key field, the rest of the table doesn’t need to be searched for duplicate values, once a higher value is found. Thus the performance increase is substantial.

What is indexing?

Indexing is a way of sorting a number of records on multiple fields. Creating an index on a field in a table creates another data structure which holds the field value, and a pointer to the record it relates to. This index structure is then sorted, allowing Binary Searches to be performed on it.

The downside to indexing is that these indices require additional space on the disk since the indices are stored together in a table using the MyISAM engine, this file can quickly reach the size limits of the underlying file system if many fields within the same table are indexed.

How does it work?

Firstly, let’s outline a sample database table schema;

Field name       Data type      Size on disk
id (Primary key) Unsigned INT   4 bytes
firstName        Char(50)       50 bytes
lastName         Char(50)       50 bytes
emailAddress     Char(100)      100 bytes

Note: char was used in place of varchar to allow for an accurate size on disk value. This sample database contains five million rows and is unindexed. The performance of several queries will now be analyzed. These are a query using the id (a sorted key field) and one using the firstName (a non-key unsorted field).

Example 1 - sorted vs unsorted fields

Given our sample database of r = 5,000,000 records of a fixed size giving a record length of R = 204 bytes and they are stored in a table using the MyISAM engine which is using the default block size B = 1,024 bytes. The blocking factor of the table would be bfr = (B/R) = 1024/204 = 5 records per disk block. The total number of blocks required to hold the table is N = (r/bfr) = 5000000/5 = 1,000,000 blocks.

A linear search on the id field would require an average of N/2 = 500,000 block accesses to find a value, given that the id field is a key field. But since the id field is also sorted, a binary search can be conducted requiring an average of log2 1000000 = 19.93 = 20 block accesses. Instantly we can see this is a drastic improvement.

Now the firstName field is neither sorted nor a key field, so a binary search is impossible, nor are the values unique, and thus the table will require searching to the end for an exact N = 1,000,000 block accesses. It is this situation that indexing aims to correct.

Given that an index record contains only the indexed field and a pointer to the original record, it stands to reason that it will be smaller than the multi-field record that it points to. So the index itself requires fewer disk blocks than the original table, which therefore requires fewer block accesses to iterate through. The schema for an index on the firstName field is outlined below;

Field name       Data type      Size on disk
firstName        Char(50)       50 bytes
(record pointer) Special        4 bytes

Note: Pointers in MySQL are 2, 3, 4 or 5 bytes in length depending on the size of the table.

Example 2 - indexing

Given our sample database of r = 5,000,000 records with an index record length of R = 54 bytes and using the default block size B = 1,024 bytes. The blocking factor of the index would be bfr = (B/R) = 1024/54 = 18 records per disk block. The total number of blocks required to hold the index is N = (r/bfr) = 5000000/18 = 277,778 blocks.

Now a search using the firstName field can utilize the index to increase performance. This allows for a binary search of the index with an average of log2 277778 = 18.08 = 19 block accesses. To find the address of the actual record, which requires a further block access to read, bringing the total to 19 + 1 = 20 block accesses, a far cry from the 1,000,000 block accesses required to find a firstName match in the non-indexed table.

When should it be used?

Given that creating an index requires additional disk space (277,778 blocks extra from the above example, a ~28% increase), and that too many indices can cause issues arising from the file systems size limits, careful thought must be used to select the correct fields to index.

Since indices are only used to speed up the searching for a matching field within the records, it stands to reason that indexing fields used only for output would be simply a waste of disk space and processing time when doing an insert or delete operation, and thus should be avoided. Also given the nature of a binary search, the cardinality or uniqueness of the data is important. Indexing on a field with a cardinality of 2 would split the data in half, whereas a cardinality of 1,000 would return approximately 1,000 records. With such a low cardinality the effectiveness is reduced to a linear sort, and the query optimizer will avoid using the index if the cardinality is less than 30% of the record number, effectively making the index a waste of space.

Or if you need to match only the beginning of words:

WHERE interests LIKE 'sports%' OR interests LIKE 'pub%'

you can use the regexp caret matches:

WHERE interests REGEXP '^sports|^pub'

https://www.regular-expressions.info/anchors.html

Cocoa offers a cool feature which greatly enhances your capabilities to debug such situations. It is an environment variable which is called NSZombieEnabled, watch this video that explains setting up NSZombieEnabled in objective-C

You can use GREATEST function with not nullable fields. If one of this values (or both) can be NULL, don't use it (result can be NULL).

select 
    if(
        fieldA is NULL, 
        if(fieldB is NULL, NULL, fieldB), /* second NULL is default value */
        if(fieldB is NULL, field A, GREATEST(fieldA, fieldB))
    ) as maxValue

You can change NULL to your preferred default value (if both values is NULL).

I am assuming (please correct me if I am wrong) that you want to re-display the edit page if the edit fails and to do this you are using a redirect.

You may have more luck by just returning the view again rather than trying to redirect the user, this way you will be able to use the ModelState to output any errors too.

Edit:

Updated based on feedback. You can place the previous URL in the viewModel, add it to a hidden field then use it again in the action that saves the edits.

For instance:

public ActionResult Index()
{
    return View();
}

[HttpGet] // This isn't required
public ActionResult Edit(int id)
{
   // load object and return in view
   ViewModel viewModel = Load(id);

   // get the previous url and store it with view model
   viewModel.PreviousUrl = System.Web.HttpContext.Current.Request.UrlReferrer;

   return View(viewModel);
}

[HttpPost]
public ActionResult Edit(ViewModel viewModel)
{
   // Attempt to save the posted object if it works, return index if not return the Edit view again

   bool success = Save(viewModel);
   if (success)
   {
       return Redirect(viewModel.PreviousUrl);
   }
   else
   {
      ModelState.AddModelError("There was an error");
      return View(viewModel);
   }
}

The BeginForm method for your view doesn't need to use this return URL either, you should be able to get away with:

@model ViewModel

@using (Html.BeginForm())
{
    ...
    <input type="hidden" name="PreviousUrl" value="@Model.PreviousUrl" />
}

Going back to your form action posting to an incorrect URL, this is because you are passing a URL as the 'id' parameter, so the routing automatically formats your URL with the return path.

This won't work because your form will be posting to an controller action that won't know how to save the edits. You need to post to your save action first, then handle the redirect within it.

You can't compare arrays directly like this

array1==array2

You should compare them char-by-char; for this you can use a function and return a boolean (True:1, False:0) value. Then you can use it in the test condition of the while loop.

Try this:

#include <stdio.h>
int checker(char input[],char check[]);
int main()
{
    char input[40];
    char check[40];
    int i=0;
    printf("Hello!\nPlease enter a word or character:\n");
    scanf("%s",input);
    printf("I will now repeat this until you type it back to me.\n");
    scanf("%s",check);

    while (!checker(input,check))
    {
        printf("%s\n", input);
        scanf("%s",check);
    }

    printf("Good bye!");

    return 0;
}

int checker(char input[],char check[])
{
    int i,result=1;
    for(i=0; input[i]!='\0' || check[i]!='\0'; i++) {
        if(input[i] != check[i]) {
            result=0;
            break;
        }
    }
    return result;
}

If you want to refer to calculated column on the "same query level" then you could use CROSS APPLY(Oracle 12c):

--Sample data:
CREATE TABLE tab(ColumnA NUMBER(10,2),ColumnB NUMBER(10,2),ColumnC NUMBER(10,2));

INSERT INTO tab(ColumnA, ColumnB, ColumnC) VALUES (2, 10, 2);
INSERT INTO tab(ColumnA, ColumnB, ColumnC) VALUES (3, 15, 6);
INSERT INTO tab(ColumnA, ColumnB, ColumnC) VALUES (7, 14, 3);
COMMIT;

Query:

SELECT
  ColumnA,
  ColumnB,
  sub.calccolumn1,
  sub.calccolumn1 / ColumnC AS calccolumn2
FROM tab t
CROSS APPLY (SELECT t.ColumnA + t.ColumnB AS calccolumn1 FROM dual) sub;

DBFiddle Demo

Please note that expression from CROSS APPLY/OUTER APPLY is available in other clauses too:

SELECT
  ColumnA,
  ColumnB,
  sub.calccolumn1,
  sub.calccolumn1 / ColumnC AS calccolumn2
FROM tab t
CROSS APPLY (SELECT t.ColumnA + t.ColumnB AS calccolumn1 FROM dual) sub
WHERE sub.calccolumn1 = 12;
-- GROUP BY ...
-- ORDER BY ...;

This approach allows to avoid wrapping entire query with outerquery or copy/paste same expression in multiple places(with complex one it could be hard to maintain).

Related article: The SQL Language’s Most Missing Feature

Yes, Google Custom Search has now replaced the old Search API, but you can still use Google Custom Search to search the entire web, although the steps are not obvious from the Custom Search setup.

To create a Google Custom Search engine that searches the entire web:

1. From the Google Custom Search homepage ( http://www.google.com/cse/ ), click Create a Custom Search Engine.
2. Type a name and description for your search engine.
3. Under Define your search engine, in the Sites to Search box, enter at least one valid URL (For now, just put www.anyurl.com to get past this screen. More on this later ).
4. Select the CSE edition you want and accept the Terms of Service, then click Next. Select the layout option you want, and then click Next.
5. Click any of the links under the Next steps section to navigate to your Control panel.
6. In the left-hand menu, under Control Panel, click Basics.
7. In the Search Preferences section, select Search the entire web but emphasize included sites.
8. Click Save Changes.
9. In the left-hand menu, under Control Panel, click Sites.
10. Delete the site you entered during the initial setup process.

Now your custom search engine will search the entire web.

Pricing

• Google Custom Search gives you 100 queries per day for free.
• After that you pay $5 per 1000 queries.
• There is a maximum of 10,000 queries per day.

Source: https://developers.google.com/custom-search/json-api/v1/overview#Pricing

• The search quality is much lower than normal Google search (no synonyms, "intelligence" etc.)
• It seems that Google is even planning to shut down this service completely.

To insert a new row into a given table (tblTable) :

INSERT INTO tblTable (DateColumn) VALUES (GETDATE())

To update an existing row :

UPDATE tblTable SET DateColumn = GETDATE()
 WHERE ID = RequiredUpdateID

Note that when INSERTing a new row you will need to observe any constraints which are on the table - most likely the NOT NULL constraint - so you may need to provide values for other columns eg...

 INSERT INTO tblTable (Name, Type, DateColumn) VALUES ('John', 7, GETDATE())

You can get headers using below code

let main_headers = {}
this.http.post(url,
  {email: this.username, password: this.password},
  {'headers' : new HttpHeaders ({'Content-Type' : 'application/json'}), 'responseType': 'text', observe:'response'})
  .subscribe(response => {
    const keys = response.headers.keys();
    let headers = keys.map(key => {
      `${key}: ${response.headers.get(key)}`
        main_headers[key] = response.headers.get(key)
       }
      );
  });

later we can get the required header form the json object.

header_list['X-Token']

if (x) 

coerces x using JavaScript's internal toBoolean (http://es5.github.com/#x9.2)

x == false

coerces both sides using internal toNumber coercion (http://es5.github.com/#x9.3) or toPrimitive for objects (http://es5.github.com/#x9.1)

For full details see http://javascriptweblog.wordpress.com/2011/02/07/truth-equality-and-javascript/

Make sure that both projects have same target framework version here: right click on project -> properties -> application (tab) -> target framework

Also, make sure that the project "logger" (which you want to include in the main project) has the output type "Class Library" in: right click on project -> properties -> application (tab) -> output type

Finally, Rebuild the solution.

An ES6 update... though both filter and map might need customization.

Object.entries(theObj) returns a [[key, value],] array representation of an object that can be worked on using Javascript's array methods, .each(), .any(), .forEach(), .filter(), .map(), .reduce(), etc.

Saves a ton of work on iterating over parts of an object Object.keys(theObj), or Object.values() separately.

const buttons = {_x000D_
    button1: {_x000D_
        text: 'Close',_x000D_
        onclick: function(){_x000D_
_x000D_
        }_x000D_
    },_x000D_
    button2: {_x000D_
        text: 'OK',_x000D_
        onclick: function(){_x000D_
_x000D_
        }_x000D_
    },_x000D_
    button3: {_x000D_
        text: 'Cancel',_x000D_
        onclick: function(){_x000D_
_x000D_
        }_x000D_
    }_x000D_
}_x000D_
_x000D_
list = Object.entries(buttons)_x000D_
    .filter(([key, value]) => `${key}`[value] !== 'undefined' ) //has options_x000D_
    .map(([key, value], idx) => `{${idx} {${key}: ${value}}}`)_x000D_
    _x000D_
console.log(list)

Preferences -> General -> Load preferences from a custom folder or URL

First time you choose this, it will automatically save a preferences file into this folder called "com.googlecode.iterm2.plist"

I met this issue too. When I add dependencies in the pom.xml, I checked in the local folder /Users/xyz/.m2/ and the jars are already downloaded there, but cann't added the the buildpath of the eclipse.

My eclipse Version: Mars.2 Release (4.5.2)

right click project > Maven > Enable Workspace Resolution

And this solved my issue.

The error means that you have data in other tables that references the data you are trying to delete.

You would need to either drop and recreate the constraints or delete the data that the Foreign Key references.

Suppose you have the following tables

dbo.Students
(
StudentId
StudentName
StudentTypeId
)


dbo.StudentTypes
(
StudentTypeId
StudentType
)

Suppose a Foreign Key constraint exists between the StudentTypeId column in StudentTypes and the StudentTypeId column in Students

If you try to delete all the data in StudentTypes an error will occur as the StudentTypeId column in Students reference the data in the StudentTypes table.

EDIT:

DELETE and TRUNCATE essentially do the same thing. The only difference is that TRUNCATE does not save the changes in to the Log file. Also you can't use a WHERE clause with TRUNCATE

AS to why you can run this in SSMS but not via your Application. I really can't see this happening. The FK constraint would still throw an error regardless of where the transaction originated from.

Suppose I have integer = 0123456789101112. Now, this integer can be converted into a string by the stringstream class.

Here is the code in C++:

   #include <bits/stdc++.h>
   using namespace std;
   int main()
   {
      int n,i;
      string s;
      stringstream st;
      for(i=0;i<=12;i++)
      {
        st<<i;
      }
      s=st.str();
      cout<<s<<endl;
      return 0;

    }

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import java.util.Base64;
import java.util.Base64.Encoder;


/**
 * 
 * @author shivshankar pal
 * 
 *         this code is working properly. doing proper encription and decription
           note:- it will work only with jdk8

 * 

 * 
 */

public class TDes {
    private static byte[] key = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02,
            0x02, 0x02, 0x02, 0x02, 0x02, 0x02 };

    private static byte[] keyiv = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
            0x00 };



     public static String encode(String args) {


        System.out.println("plain data==>  " + args);

        byte[] encoding;
        try {
            encoding = Base64.getEncoder().encode(args.getBytes("UTF-8"));

        System.out.println("Base64.encodeBase64==>" + new String(encoding));
        byte[] str5 = des3EncodeCBC(key, keyiv, encoding);

        System.out.println("des3EncodeCBC==>  " + new String(str5));

        byte[] encoding1 = Base64.getEncoder().encode(str5);
        System.out.println("Base64.encodeBase64==> " + new String(encoding1));
        return new String(encoding1);
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }


    public static String decode(String args) {
        try {
            System.out.println("encrypted data==>" + new String(args.getBytes("UTF-8")));


        byte[] decode = Base64.getDecoder().decode(args.getBytes("UTF-8"));
        System.out.println("Base64.decodeBase64(main encription)==>" + new String(decode));

        byte[] str6 = des3DecodeCBC(key, keyiv, decode);
        System.out.println("des3DecodeCBC==>" + new String(str6));
        String data=new String(str6);
        byte[] decode1 = Base64.getDecoder().decode(data.trim().getBytes("UTF-8"));
        System.out.println("plaintext==>  " + new String(decode1));
        return new String(decode1);
        } catch (UnsupportedEncodingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return "u mistaken in try block";

        }



    private static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) {
        try {
            Key deskey = null;
            DESedeKeySpec spec = new DESedeKeySpec(key);
            SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
            deskey = keyfactory.generateSecret(spec);

            Cipher cipher = Cipher.getInstance("desede/ CBC/PKCS5Padding");
            IvParameterSpec ips = new IvParameterSpec(keyiv);
            cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
            byte[] bout = cipher.doFinal(data);
            return bout;

        } catch (Exception e) {
            System.out.println("methods qualified name" + e);
        }
        return null;

    }

    private static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) {
        try {
            Key deskey = null;
            DESedeKeySpec spec = new DESedeKeySpec(key);
            SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
            deskey = keyfactory.generateSecret(spec);

            Cipher cipher = Cipher.getInstance("desede/ CBC/NoPadding");//PKCS5Padding NoPadding
            IvParameterSpec ips = new IvParameterSpec(keyiv);
            cipher.init(Cipher.DECRYPT_MODE, deskey, ips);

            byte[] bout = cipher.doFinal(data);


            return bout;

        } catch (Exception e) {
            System.out.println("methods qualified name" + e);
        }

        return null;

    }

}

In Internet Explorer, click the Tools -> Internet Options. Click General tab -> Tabs -> Settings. Choose "When a pop-up is encountered"-> Always open pop up in new tab option. Click OK.

I like to use np.vectorize for such tasks. Consider the following:

>>> # Arrays
>>> x = np.array([5, 2, 3, 1, 4, 5])
>>> y = np.array(['f','o','o','b','a','r'])

>>> # Function containing the constraints
>>> func = np.vectorize(lambda t: t>1 and t<5)

>>> # Call function on x
>>> y[func(x)]
>>> array(['o', 'o', 'a'], dtype='<U1')

The advantage is you can add many more types of constraints in the vectorized function.

Hope it helps.

Trapping CHLD signal may not work because you can lose some signals if they arrived simultaneously.

#!/bin/bash

trap 'rm -f $tmpfile' EXIT

tmpfile=$(mktemp)

doCalculations() {
    echo start job $i...
    sleep $((RANDOM % 5)) 
    echo ...end job $i
    exit $((RANDOM % 10))
}

number_of_jobs=10

for i in $( seq 1 $number_of_jobs )
do
    ( trap "echo job$i : exit value : \$? >> $tmpfile" EXIT; doCalculations ) &
done

wait 

i=0
while read res; do
    echo "$res"
    let i++
done < "$tmpfile"

echo $i jobs done !!!

Copy the contents of the PATH settings to a notepad and check if the location for the 1.4.2 comes before that of the 7. If so, remove the path to 1.4.2 in the PATH setting and save it.

After saving and applying "Environment Variables" close and reopen the cmd line. In XP the path does no get reflected in already running programs.

If you read the help file for ?boxplot, you'll see there is a names= parameter.

     boxplot(apple, banana, watermelon, names=c("apple","banana","watermelon"))

I use filter

.filter('toDate', function() {
  return function(items) {
    return new Date(items);
  };
});

then

{{'2018-05-06 09:04:13' | toDate | date:'dd/MM/yyyy hh:mm'}}

Build a list from the columns and remove the column you don't want to calculate the Z score for:

In [66]:
cols = list(df.columns)
cols.remove('ID')
df[cols]

Out[66]:
   Age  BMI  Risk  Factor
0    6   48  19.3       4
1    8   43  20.9     NaN
2    2   39  18.1       3
3    9   41  19.5     NaN
In [68]:
# now iterate over the remaining columns and create a new zscore column
for col in cols:
    col_zscore = col + '_zscore'
    df[col_zscore] = (df[col] - df[col].mean())/df[col].std(ddof=0)
df
Out[68]:
   ID  Age  BMI  Risk  Factor  Age_zscore  BMI_zscore  Risk_zscore  \
0  PT    6   48  19.3       4   -0.093250    1.569614    -0.150946   
1  PT    8   43  20.9     NaN    0.652753    0.074744     1.459148   
2  PT    2   39  18.1       3   -1.585258   -1.121153    -1.358517   
3  PT    9   41  19.5     NaN    1.025755   -0.523205     0.050315   

   Factor_zscore  
0              1  
1            NaN  
2             -1  
3            NaN  

We can also make use of below given dependency and plugin in your pom file - I make use of maven. With the use of these you can generate POJO's as per your JSON Schema and then make use of code given below to populate request JSON object via src object specified as parameter to gson.toJson(Object src) or vice-versa. Look at the code below:

Gson gson = new GsonBuilder().create();
String payloadStr = gson.toJson(data.getMerchant().getStakeholder_list());

Gson gson2 = new Gson();
Error expectederr = gson2.fromJson(payloadStr, Error.class);

And the Maven settings:

<dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>1.7.1</version>
</dependency>

<plugin>
    <groupId>com.googlecode.jsonschema2pojo</groupId>
    <artifactId>jsonschema2pojo-maven-plugin</artifactId>
    <version>0.3.7</version>
    <configuration>
        <sourceDirectory>${basedir}/src/main/resources/schema</sourceDirectory>
        <targetPackage>com.example.types</targetPackage>
    </configuration>
    <executions>
        <execution>
            <phase>generate-sources</phase>
            <goals>
                <goal>generate</goal>
            </goals>
        </execution>
    </executions>
</plugin>

Download the latest Node.js MSI (4.x or 5.x) installer and run the following via command line:

msiexec /a node-v4.4.3-x64.msi /qb TARGETDIR="C:\Node.js"

This will extract the binaries into C:\Node.js\nodejs.

Then you will want to add C:\Node.js\nodejs PATH environment variable.

To update NPM, do the following:

cd C:\Node.js\nodejs
npm install npm@latest

After that completes, you should be able to check the versions:

node --version
npm --version

Node should be 4.4.3+ (whichever you installed) and npm should be 3.8.7+.

You shouldn't edit any code manually jetify should do this job for you, if you are running/building from cli using react-native you dont' need to do anything but if you are running/building Andriod studio you need to run jetify as pre-build, here is how can you automate this:

1- From the above menu go to edit configurations:

2- Add the bottom of the screen you will find before launch click on the plus and choose Run External Tool

2- Fill the following information, note that the working directory is your project root directory (not the android directory):

3- Make sure this run before anything else, in the end, your configuration should look something like this:

You need to install a plugin, There is a free one from the eclipse foundation called the Web Tools Platform. It has all the development functionality that you'll need.

You can get the Java EE Edition of eclipse with has it pre-installed.

To create and run your first servlet:

1. New... Project... Dynamic Web Project.
2. Right click the project... New Servlet.
3. Write some code in the doGet() method.
4. Find the servers view in the Java EE perspective, it's usually one of the tabs at the bottom.
5. Right click in there and select new Server.
6. Select Tomcat X.X and a wizard will point you to finding the installation.
7. Right click the server you just created and select Add and Remove... and add your created web project.
8. Right click your servlet and select Run > Run on Server...

That should do it for you. You can use ant to build here if that's what you'd like but eclipse will actually do the build and automatically deploy the changes to the server. With Tomcat you might have to restart it every now and again depending on the change.

An old stupid trick that works in this case... paste code from your editor to ms notepad, then viceversa, and evil character will disappears ! I take inspiration from wyisyg/msword copypaste problem. Notepad++ utf-8 w/out BOM works as well.

This gives almost what you need:

git log --stat --oneline

Commit id + short one line still remains, followed by list of changed files by that commit.

Add reference to add System.Configuration:-

System.Configuration.ConfigurationManager.
    ConnectionStrings["connectionStringName"].ConnectionString;

Also you can change the WebConfig file to include the provider name:-

<connectionStrings>
  <add name="Dbconnection" 
       connectionString="Server=localhost; Database=OnlineShopping;
       Integrated Security=True"; providerName="System.Data.SqlClient" />
</connectionStrings>

FWIW, here is a sort method for showing which processes are using the most virt memory.

memstat | sort -k 1 -t':' -g -r | less

Sort options are set to first column, using : as column seperator, numeric sort and sort in reverse.

In general, the best practice recommendation is singular, except for those enums that have the [Flags] attribute attached to them, (and which therefore can contain bit fields), which should be plural.

After reading your edited question, I get the feeling you may think the property name or variable name has to be different from the enum type name... It doesn't. The following is perfectly fine...

  public enum Status { New, Edited, Approved, Cancelled, Closed }

  public class Order
  {
      private Status stat;
      public Status Status
      { 
         get { return stat; }
         set { stat = value; }
      }
  }

I want to know the time to brute force for when the password is a dictionary word and also when it is not a dictionary word.

Dictionary password

Ballpark figure: there are about 1,000,000 English words, and if a hacker can compute about 10,000 SHA-512 hashes a second (update: see comment by CodesInChaos, this estimate is very low), 1,000,000 / 10,000 = 100 seconds. So it would take just over a minute to crack a single-word dictionary password for a single user. If the user concatenates two dictionary words, you're in the area of a few days, but still very possible if the attacker is cares enough. More than that and it starts getting tough.

Random password

If the password is a truly random sequence of alpha-numeric characters, upper and lower case, then the number of possible passwords of length N is 60^N (there are 60 possible characters). We'll do the calculation the other direction this time; we'll ask: What length of password could we crack given a specific length of time? Just use this formula:

N = Log60(t * 10,000) where t is the time spent calculating hashes in seconds (again assuming 10,000 hashes a second).

1 minute:    3.2
5 minute:    3.6
30 minutes:  4.1
2 hours:     4.4
3 days:      5.2

So given a 3 days we'd be able to crack the password if it's 5 characters long.

This is all very ball-park, but you get the idea. Update: see comment below, it's actually possible to crack much longer passwords than this.

What's going on here?

Let's clear up some misconceptions:

• The salt doesn't make it slower to calculate hashes, it just means they have to crack each user's password individually, and pre-computed hash tables (buzz-word: rainbow tables) are made completely useless. If you don't have a precomputed hash-table, and you're only cracking one password hash, salting doesn't make any difference.

• SHA-512 isn't designed to be hard to brute-force. Better hashing algorithms like BCrypt, PBKDF2 or SCrypt can be configured to take much longer to compute, and an average computer might only be able to compute 10-20 hashes a second. Read This excellent answer about password hashing if you haven't already.

• update: As written in the comment by CodesInChaos, even high entropy passwords (around 10 characters) could be bruteforced if using the right hardware to calculate SHA-512 hashes.

Notes on accepted answer:

The accepted answer as of September 2014 is incorrect and dangerously wrong:

In your case, breaking the hash algorithm is equivalent to finding a collision in the hash algorithm. That means you don't need to find the password itself (which would be a preimage attack)... Finding a collision using a birthday attack takes O(2^n/2) time, where n is the output length of the hash function in bits.

The birthday attack is completely irrelevant to cracking a given hash. And this is in fact a perfect example of a preimage attack. That formula and the next couple of paragraphs result in dangerously high and completely meaningless values for an attack time. As demonstrated above it's perfectly possible to crack salted dictionary passwords in minutes.

The low entropy of typical passwords makes it possible that there is a relatively high chance of one of your users using a password from a relatively small database of common passwords...

That's why generally hashing and salting alone is not enough, you need to install other safety mechanisms as well. You should use an artificially slowed down entropy-enducing method such as PBKDF2 described in PKCS#5...

Yes, please use an algorithm that is slow to compute, but what is "entropy-enducing"? Putting a low entropy password through a hash doesn't increase entropy. It should preserve entropy, but you can't make a rubbish password better with a hash, it doesn't work like that. A weak password put through PBKDF2 is still a weak password.

Why can't it just use AND in the ON clause? For example:

SELECT *
FROM flights
INNER JOIN airports
   ON ((airports.code = flights.fairport)
       AND (airports.code = flights.tairport))

Very nice example using paste and substitute to typeset both symbols (mathplot) and variables at http://vis.supstat.com/2013/04/mathematical-annotation-in-r/

Here is a ggplot adaptation

library(ggplot2)
x_mean <- 1.5
x_sd <- 1.2
N <- 500

n <- ggplot(data.frame(x <- rnorm(N, x_mean, x_sd)),aes(x=x)) +
    geom_bar() + stat_bin() +
    labs(title=substitute(paste(
             "Histogram of random data with ",
             mu,"=",m,", ",
             sigma^2,"=",s2,", ",
             "draws = ", numdraws,", ",
             bar(x),"=",xbar,", ",
             s^2,"=",sde),
             list(m=x_mean,xbar=mean(x),s2=x_sd^2,sde=var(x),numdraws=N)))

print(n)

Alternatively you can do the following:

Tables.ToList<string>().Count;

Step 1

Create a objective c file(.m file) and it's corresponding header file.

// Header file (We call it "ObjCFunc.h")

#ifndef test2_ObjCFunc_h
#define test2_ObjCFunc_h
@interface myClass :NSObject
-(void)hello:(int)num1;
@end
#endif

// Corresponding Objective C file(We call it "ObjCFunc.m")

#import <Foundation/Foundation.h>
#include "ObjCFunc.h"
@implementation myClass
//Your objective c code here....
-(void)hello:(int)num1
{
NSLog(@"Hello!!!!!!");
}
@end

Step 2

Now we will implement a c++ function to call the objective c function that we just created! So for that we will define a .mm file and its corresponding header file(".mm" file is to be used here because we will be able to use both Objective C and C++ coding in the file)

//Header file(We call it "ObjCCall.h")

#ifndef __test2__ObjCCall__
#define __test2__ObjCCall__
#include <stdio.h>
class ObjCCall
{
public:
static void objectiveC_Call(); //We define a static method to call the function directly using the class_name
};
#endif /* defined(__test2__ObjCCall__) */

//Corresponding Objective C++ file(We call it "ObjCCall.mm")

#include "ObjCCall.h"
#include "ObjCFunc.h"
void ObjCCall::objectiveC_Call()
{
//Objective C code calling.....
myClass *obj=[[myClass alloc]init]; //Allocating the new object for the objective C   class we created
[obj hello:(100)];   //Calling the function we defined
}

Step 3

Calling the c++ function(which actually calls the objective c method)

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__
#include "cocos2d.h"
#include "ObjCCall.h"
class HelloWorld : public cocos2d::Layer
{
public:
// there's no 'id' in cpp, so we recommend returning the class instance pointer
static cocos2d::Scene* createScene();
// Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning  'id' in cocos2d-iphone
virtual bool init();
// a selector callback
void menuCloseCallback(cocos2d::Ref* pSender);
void ObCCall();  //definition
// implement the "static create()" method manually
CREATE_FUNC(HelloWorld);
};
#endif // __HELLOWORLD_SCENE_H__

//Final call

#include "HelloWorldScene.h"
#include "ObjCCall.h"
USING_NS_CC;
Scene* HelloWorld::createScene()
{
// 'scene' is an autorelease object
auto scene = Scene::create();
// 'layer' is an autorelease object
auto layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !Layer::init() )
{
    return false;
}
Size visibleSize = Director::getInstance()->getVisibleSize();
Vec2 origin = Director::getInstance()->getVisibleOrigin();

/////////////////////////////
// 2. add a menu item with "X" image, which is clicked to quit the program
//    you may modify it.

// add a "close" icon to exit the progress. it's an autorelease object
auto closeItem = MenuItemImage::create(
                                       "CloseNormal.png",
                                       "CloseSelected.png",
                                       CC_CALLBACK_1(HelloWorld::menuCloseCallback,  this));

closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2 ,
                            origin.y + closeItem->getContentSize().height/2));

// create menu, it's an autorelease object
auto menu = Menu::create(closeItem, NULL);
menu->setPosition(Vec2::ZERO);
this->addChild(menu, 1);

/////////////////////////////
// 3. add your codes below...

// add a label shows "Hello World"
// create and initialize a label

auto label = Label::createWithTTF("Hello World", "fonts/Marker Felt.ttf", 24);

// position the label on the center of the screen
label->setPosition(Vec2(origin.x + visibleSize.width/2,
                        origin.y + visibleSize.height - label- >getContentSize().height));
// add the label as a child to this layer
this->addChild(label, 1);
// add "HelloWorld" splash screen"
auto sprite = Sprite::create("HelloWorld.png");
// position the sprite on the center of the screen
sprite->setPosition(Vec2(visibleSize.width/2 + origin.x, visibleSize.height/2 +     origin.y));
// add the sprite as a child to this layer
this->addChild(sprite, 0);
this->ObCCall();   //first call
return true;
}
void HelloWorld::ObCCall()  //Definition
{
ObjCCall::objectiveC_Call();  //Final Call  
}
void HelloWorld::menuCloseCallback(Ref* pSender)
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM ==   CC_PLATFORM_WINRT)
MessageBox("You pressed the close button. Windows Store Apps do not implement a close    button.","Alert");
return;
#endif
Director::getInstance()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
}

Hope this works!

It is indeed possible.

Here is an example calling the Weather SOAP Service using plain requests lib:

import requests
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
#headers = {'content-type': 'application/soap+xml'}
headers = {'content-type': 'text/xml'}
body = """<?xml version="1.0" encoding="UTF-8"?>
         <SOAP-ENV:Envelope xmlns:ns0="http://ws.cdyne.com/WeatherWS/" xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/" 
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
            <SOAP-ENV:Header/>
              <ns1:Body><ns0:GetWeatherInformation/></ns1:Body>
         </SOAP-ENV:Envelope>"""

response = requests.post(url,data=body,headers=headers)
print response.content

Some notes:

• The headers are important. Most SOAP requests will not work without the correct headers. application/soap+xml is probably the more correct header to use (but the weatherservice prefers text/xml
• This will return the response as a string of xml - you would then need to parse that xml.
• For simplicity I have included the request as plain text. But best practise would be to store this as a template, then you can load it using jinja2 (for example) - and also pass in variables.

For example:

from jinja2 import Environment, PackageLoader
env = Environment(loader=PackageLoader('myapp', 'templates'))
template = env.get_template('soaprequests/WeatherSericeRequest.xml')
body = template.render()

Some people have mentioned the suds library. Suds is probably the more correct way to be interacting with SOAP, but I often find that it panics a little when you have WDSLs that are badly formed (which, TBH, is more likely than not when you're dealing with an institution that still uses SOAP ;) ).

You can do the above with suds like so:

from suds.client import Client
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
client = Client(url)
print client ## shows the details of this service

result = client.service.GetWeatherInformation() 
print result 

Note: when using suds, you will almost always end up needing to use the doctor!

Finally, a little bonus for debugging SOAP; TCPdump is your friend. On Mac, you can run TCPdump like so:

sudo tcpdump -As 0 

This can be helpful for inspecting the requests that actually go over the wire.

The above two code snippets are also available as gists:

• SOAP Request with requests
• SOAP Request with suds

PreparedStatement is a very good defense (but not foolproof) in preventing SQL injection attacks. Binding parameter values is a good way to guarding against "little Bobby Tables" making an unwanted visit.

It is returning the array, but all returning something (including an Array) does is just what it sounds like: returns the value. In your case, you are getting the value of numbers(), which happens to be an array (it could be anything and you would still have this issue), and just letting it sit there.

When a function returns anything, it is essentially replacing the line in which it is called (in your case: numbers();) with the return value. So, what your main method is really executing is essentially the following:

public static void main(String[] args) {
    {1,2,3};
}

Which, of course, will appear to do nothing. If you wanted to do something with the return value, you could do something like this:

public static void main(String[] args){
    int[] result = numbers();
    for (int i=0; i<result.length; i++) {
        System.out.print(result[i]+" ");
    }
}

SQL Server Management Studio provides an Import/Export wizard tool which have an option to automatically create tables.

You can access it by right clicking on the Database in Object Explorer and selecting Tasks->Import Data...

From there wizard should be self-explanatory and easy to navigate. You choose your CSV as source, desired destination, configure columns and run the package.

If you need detailed guidance, there are plenty of guides online, here is a nice one: http://www.mssqltips.com/sqlservertutorial/203/simple-way-to-import-data-into-sql-server/

1.

function setColor(e) {
  var target = e.target,
      count = +target.dataset.count;

   target.style.backgroundColor = count === 1 ? "#7FFF00" : '#FFFFFF';
   target.dataset.count = count === 1 ? 0 : 1;
   /* 

   () : ? - this is conditional (ternary) operator - equals 

   if (count === 1) {
      target.style.backgroundColor = "#7FFF00";
      target.dataset.count = 0;
   } else {
      target.style.backgroundColor = "#FFFFFF";
      target.dataset.count = 1;
   } 
   target.dataset - return all "data attributes" for current element, 
   in the form of object, 
   and you don't need use global variable in order to save the state 0 or 1
  */ 
}


<input 
  type="button" 
  id="button" 
  value="button" 
  style="color:white" 
  onclick="setColor(event)"; 
  data-count="1" 
/>

2.

function setColor(e) {
   var target = e.target,
       status = e.target.classList.contains('active');

   e.target.classList.add(status ? 'inactive' : 'active');
   e.target.classList.remove(status ? 'active' : 'inactive'); 
}

.active {
  background-color: #7FFF00;  
}

.inactive {
  background-color: #FFFFFF;
}

<input 
  type="button" 
  id="button" 
  value="button" 
  style="color:white" 
  onclick="setColor(event)" 
/>

([conditional (ternary) operator])

Example-1

Example-2

Without using lambda:

from operator import mul
reduce(mul, list, 1)

it is better and faster. With python 2.7.5

from operator import mul
import numpy as np
import numexpr as ne
# from functools import reduce # python3 compatibility

a = range(1, 101)
%timeit reduce(lambda x, y: x * y, a)   # (1)
%timeit reduce(mul, a)                  # (2)
%timeit np.prod(a)                      # (3)
%timeit ne.evaluate("prod(a)")          # (4)

In the following configuration:

a = range(1, 101)  # A
a = np.array(a)    # B
a = np.arange(1, 1e4, dtype=int) #C
a = np.arange(1, 1e5, dtype=float) #D

Results with python 2.7.5

       |     1     |     2     |     3     |     4     |
-------+-----------+-----------+-----------+-----------+
 A       20.8 µs     13.3 µs     22.6 µs     39.6 µs     
 B        106 µs     95.3 µs     5.92 µs     26.1 µs
 C       4.34 ms     3.51 ms     16.7 µs     38.9 µs
 D       46.6 ms     38.5 ms      180 µs      216 µs

Result: np.prod is the fastest one, if you use np.array as data structure (18x for small array, 250x for large array)

with python 3.3.2:

       |     1     |     2     |     3     |     4     |
-------+-----------+-----------+-----------+-----------+
 A       23.6 µs     12.3 µs     68.6 µs     84.9 µs     
 B        133 µs      107 µs     7.42 µs     27.5 µs
 C       4.79 ms     3.74 ms     18.6 µs     40.9 µs
 D       48.4 ms     36.8 ms      187 µs      214 µs

Is python 3 slower?

Here my code with expressJS:

router.route('/wordslike/:word')
    .get(function(request, response) {
            var word = request.params.word;       
            Word.find({'sentence' : new RegExp(word, 'i')}, function(err, words){
               if (err) {response.send(err);}
               response.json(words);
            });
         });

You can easily use imcache. A sample code is below.

void example(){
    Cache<Integer,Integer> cache = CacheBuilder.heapCache().
    cacheLoader(new CacheLoader<Integer, Integer>() {
        public Integer load(Integer key) {
            return null;
        }
    }).capacity(10000).build(); 
}

I also designed a "php session value setter" solution by myself (similar to Luke Dennis' solution. No big deal here), but after setting my session value, my needs were "jumping onto another .php file". Ok, I did it, inside my jquery code... But something didn't quite work...

My problem was kind of easy:

-After you "$.post" your values onto the small .php file, you should wait for some "success/failure" return value, and ONLY AFTER READING THIS SUCCESS VALUE, perform the jump. If you just immediately jump onto the next big .php file, your session value might have not become set onto the php sessions runtime engine, and will you probably read "empty" when doing $_SESSION["my_var"]; from the destination .php file.

In my case, to correct that situation, I changed my jQuery $.post code this way:

$.post('set_session_value.php', { key: 'keyname', value: 'myvalue'}, function(ret){
    if(ret==0){
        window.alert("success!");
        location.replace("next_page.php");
    }
    else{
        window.alert("error!");
    }
});

Of course, your "set_session_value.php" file, should return 'echo "0"; ' or 'echo "1"; ' (or whatever success values you might need).

Greetings.

Use an SqlDataAdapter instead, it's much easier and you don't need to define the column names yourself, it will get the column names from the query results:

using (SqlConnection sqlcon = new SqlConnection(ConfigurationManager.ConnectionStrings["DB"].ConnectionString))
{
    using (SqlCommand cmd = new SqlCommand("usp_GetABCD", sqlcon))
    {
        cmd.CommandType = CommandType.StoredProcedure;

        using (SqlDataAdapter da = new SqlDataAdapter(cmd))
        {
            DataTable dt = new DataTable();

            da.Fill(dt);
        }
    }
}

Alternate form of the answer by @rumpel

with open(filename, 'w'): pass

No, the underscore is the only continuation character. Personally I prefer the occasional use of a continuation character to being forced to use it always as in C#, but apart from the comments issue (which I'd agree is sometimes annoying), getting things to line up is not an issue.

With VS2008 at any rate, just select the second and following lines, hit the tab key several times, and it moves the whole lot across.

If it goes a tiny bit too far, you can delete the excess space a character at a time. It's a little fiddly, but it stays put once it's saved.

On the rare cases where this isn't good enough, I sometimes use the following technique to get it all to line up:

dim results as String = ""
results += "from a in articles "
results += "where a.articleID = 4 " 'and now you can add comments
results += "select a.articleName"

It's not perfect, and I know those that prefer C# will be tut-tutting, but there it is. It's a style choice, but I still prefer it to endless semi-colons.

Now I'm just waiting for someone to tell me I should have used a StringBuilder ;-)

As indicated a standard ipv6 address is at most 45 chars, but an ipv6 address can also include an ending % followed by a "scope" or "zone" string, which has no fixed length but is generally a small positive integer or a network interface name, so in reality it can be bigger than 45 characters. Network interface names are typically "eth0", "eth1", "wlan0", so choosing 50 as the limit is likely good enough.

This might help someone.

With a little of javascript you can search for all datetime-local inputs, search if the year the user is trying to input, greater that 100 years in the future:

$('input[type=datetime-local]').each(function( index ) {

    $(this).change(function() {
      var today = new Date();
      var date = new Date(this.value);
      var yearFuture = new Date();
      yearFuture.setFullYear(yearFuture.getFullYear()+100);

      if(date.getFullYear() > yearFuture.getFullYear()) {

        this.value = today.getFullYear() + this.value.slice(4);
      }
    })
  });

That would work depending on what client.get does when passed undefined as its first parameter.

Something like this would be safer:

app.get('/:key?', function(req, res, next) {
    var key = req.params.key;
    if (!key) {
        next();
        return;
    }
    client.get(key, function(err, reply) {
        if(client.get(reply)) {
            res.redirect(reply);
        }
        else {
            res.render('index', {
                link: null
            });
        }
    });
});

There's no problem in calling next() inside the callback.

According to this, handlers are invoked in the order that they are added, so as long as your next route is app.get('/', ...) it will be called if there is no key.

If you haven't added yourself to the group that owns .git/, then you should.

sudo usermod -a -G $(stat -c '%G' .git) $USER
sudo chmod g+u .git -R
sudo chmod g+u .gitignore
su - $USER

What this does:

1. finds out which group owns .git/ and adds your user to that group.
2. makes sure group members have the same permissions as the owner for .git/.
3. repeats this for .gitignore, which you'll probably need
4. logs you out and back in to refresh your group membership file permissions

If you just recently did something like this (added yourself to the group that owns .git/), then you need to log out and back in before you'll be able to write to .git/FETCH_HEAD during your git pull.

Erlang is awesome

palindrome(L) -> palindrome(L,[]).

palindrome([],_) -> false;
palindrome([_|[]],[]) -> true;
palindrome([_|L],L) -> true;
palindrome(L,L) -> true;
palindrome([H|T], Acc) -> palindrome(T, [H|Acc]).

In swift 3.0 Reading from Plist.

func readPropertyList() {
        var propertyListFormat =  PropertyListSerialization.PropertyListFormat.xml //Format of the Property List.
        var plistData: [String: AnyObject] = [:] //Our data
        let plistPath: String? = Bundle.main.path(forResource: "data", ofType: "plist")! //the path of the data
        let plistXML = FileManager.default.contents(atPath: plistPath!)!
        do {//convert the data to a dictionary and handle errors.
            plistData = try PropertyListSerialization.propertyList(from: plistXML, options: .mutableContainersAndLeaves, format: &propertyListFormat) as! [String:AnyObject]

        } catch {
            print("Error reading plist: \(error), format: \(propertyListFormat)")
        }
    }

Read More HOW TO USE PROPERTY LISTS (.PLIST) IN SWIFT.

You can also use DBMS_METADATA:

select dbms_metadata.get_ddl('FUNCTION', 'FGETALGOGROUPKEY', 'PADCAMPAIGN') 
from dual

for me, this solution didn't worked on a command exec with find, don't really know why, so my solution is

find . -type f -path "./a/*" -prune -o -path "./b/*" -prune -o -exec gzip -f -v {} \;

Explanation: same as sampson-chen one with the additions of

-prune - ignore the proceding path of ...

-o - Then if no match print the results, (prune the directories and print the remaining results)

18:12 $ mkdir a b c d e
18:13 $ touch a/1 b/2 c/3 d/4 e/5 e/a e/b
18:13 $ find . -type f -path "./a/*" -prune -o -path "./b/*" -prune -o -exec gzip -f -v {} \;

gzip: . is a directory -- ignored
gzip: ./a is a directory -- ignored
gzip: ./b is a directory -- ignored
gzip: ./c is a directory -- ignored
./c/3:    0.0% -- replaced with ./c/3.gz
gzip: ./d is a directory -- ignored
./d/4:    0.0% -- replaced with ./d/4.gz
gzip: ./e is a directory -- ignored
./e/5:    0.0% -- replaced with ./e/5.gz
./e/a:    0.0% -- replaced with ./e/a.gz
./e/b:    0.0% -- replaced with ./e/b.gz

As the compiler says, grid was not declared in the scope of your function :) "Scope" basically means a set of curly braces. Every variable is limited to the scope in which it is declared (it cannot be accessed outside that scope). In your case, you're declaring the grid variable in your main() function and trying to use it in nonrecursivecountcells(). You seem to be passing it as the argument colors however, so I suggest you just rename your uses of grid in nonrecursivecountcells() to colors. I think there may be something wrong with trying to pass the array that way, too, so you should probably investigate passing it as a pointer (unless someone else says something to the contrary).

This won't fix branches that already have the code you don't want in them (see below for how to do that), but if they had pulled some-branch and now want it to be clean (and not "ahead" of origin/some-branch) then you simply:

git checkout some-branch   # where some-branch can be replaced by any other branch
git branch base-branch -D  # where base-branch is the one with the squashed commits
git checkout -b base-branch origin/base-branch  # recreating branch with correct commits

Note: You can combine these all by putting && between them

Note2: Florian mentioned this in a comment, but who reads comments when looking for answers?

Note3: If you have contaminated branches, you can create new ones based off the new "dumb branch" and just cherry-pick commits over.

Ex:

git checkout feature-old  # some branch with the extra commits
git log                   # gives commits (write down the id of the ones you want)
git checkout base-branch  # after you have already cleaned your local copy of it as above
git checkout -b feature-new # make a new branch for your feature
git cherry-pick asdfasd   # where asdfasd is one of the commit ids you want
# repeat previous step for each commit id
git branch feature-old -D # delete the old branch

Now feature-new is your branch without the extra (possibly bad) commits!

If you want to display at row=159220

row=159220

#To display in a table format
display(res.loc[row:row])
display(res.iloc[row:row+1])

#To display in print format
display(res.loc[row])
display(res.iloc[row])

DF[ ! ( ( DF$sub ==1 & DF$day==2) | ( DF$sub ==3 & DF$day==4) ) , ]   # note the ! (negation)

Or if sub is a factor as suggested by your use of quotes:

DF[ ! paste(sub,day,sep="_") %in% c("1_2", "3_4"), ]

Could also use subset:

subset(DF,  ! paste(sub,day,sep="_") %in% c("1_2", "3_4") )

(And I endorse the use of which in Dirk's answer when using "[" even though some claim it is not needed.)

I'd do it like this:

[id^="product"] {
  ...
}

Ideally, use a class. This is what classes are for:

<div id="product176" class="product"></div>
<div id="product177" class="product"></div>
<div id="product178" class="product"></div>

And now the selector becomes:

.product {
  ...
}

In my case, I had a condition when the user click the "a" element. The condition was:

If other section had more than ten items, then the user should be not redirected to other page.

If other section had less than ten items, then the user should be redirected to other page.

The functionality of the "a" elements depends of the other component. The code within click event is the follow:

var elementsOtherSection = document.querySelectorAll("#vehicle-item").length;
if (elementsOtherSection> 10){
     return true;
}else{
     event.preventDefault();
     return false;
}

Search and replace

outline: thin dotted;
outline: 5px auto -webkit-focus-ring-color;

Replace to

outline: 0;

I had a similar use case where I wanted to test a Spring Boot configured repository in isolation (in my case without Spring Security autoconfiguration which was failing my test). @SpringApplicationConfiguration uses SpringApplicationContextLoader and that has a JavaDoc stating

Can be used to test non-web features (like a repository layer) or start an fully-configured embedded servlet container.

However, like yourself, I could not work out how you are meant to configure the test to only test the repository layer using the main configuration entry point i.e. using your approach of @SpringApplicationConfiguration(classes = Application.class).

My solution was to create a completely new application context exclusive for testing. So in src/test/java I have two files in a sub-package called repo

1. RepoIntegrationTest.java
2. TestRepoConfig.java

where RepoIntegrationTest.java has

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = TestRepoConfig.class)
public class RepoIntegrationTest {

and TestRepoConfig.java has

@SpringBootApplication(exclude = SecurityAutoConfiguration.class)
public class TestRepoConfig {

It got me out of trouble but it would be really useful if anyone from the Spring Boot team could provide an alternative recommended solution

Resorting to a PivotTable might not count as using formulas only but seems more practical that most other suggestions so far:

Google is full of information on this. As Hans Passant said, Form controls are built in to Excel whereas ActiveX controls are loaded separately.

Generally you'll use Forms controls, they're simpler. ActiveX controls allow for more flexible design and should be used when the job just can't be done with a basic Forms control.

Many user's computers by default won't trust ActiveX, and it will be disabled; this sometimes needs to be manually added to the trust center. ActiveX is a microsoft-based technology and, as far as I'm aware, is not supported on the Mac. This is something you'll have to also consider, should you (or anyone you provide a workbook to) decide to use it on a Mac.

In case anyone had the same problem: check this as @PravinS suggested. I used the exact same code as shown there and it worked for me perfectly.

This is the relevant part of the server code that helped:

if (isset($_POST['btnUpload']))
{
$url = "URL_PATH of upload.php"; // e.g. http://localhost/myuploader/upload.php // request URL
$filename = $_FILES['file']['name'];
$filedata = $_FILES['file']['tmp_name'];
$filesize = $_FILES['file']['size'];
if ($filedata != '')
{
    $headers = array("Content-Type:multipart/form-data"); // cURL headers for file uploading
    $postfields = array("filedata" => "@$filedata", "filename" => $filename);
    $ch = curl_init();
    $options = array(
        CURLOPT_URL => $url,
        CURLOPT_HEADER => true,
        CURLOPT_POST => 1,
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_POSTFIELDS => $postfields,
        CURLOPT_INFILESIZE => $filesize,
        CURLOPT_RETURNTRANSFER => true
    ); // cURL options
    curl_setopt_array($ch, $options);
    curl_exec($ch);
    if(!curl_errno($ch))
    {
        $info = curl_getinfo($ch);
        if ($info['http_code'] == 200)
            $errmsg = "File uploaded successfully";
    }
    else
    {
        $errmsg = curl_error($ch);
    }
    curl_close($ch);
}
else
{
    $errmsg = "Please select the file";
}
}

html form should look something like:

<form action="uploadpost.php" method="post" name="frmUpload" enctype="multipart/form-data">
<tr>
  <td>Upload</td>
  <td align="center">:</td>
  <td><input name="file" type="file" id="file"/></td>
</tr>
<tr>
  <td>&nbsp;</td>
  <td align="center">&nbsp;</td>
  <td><input name="btnUpload" type="submit" value="Upload" /></td>
</tr>

there is an official YouTube Android Player API wich you can use. This is a bit more complicated but it is working better than other solutions using webclients.

First you must register your app in Googles API Console. This is completely free until your app gets over 25k request a month (or something like that). There are complete anf great tutorials under the link. I hope you can understand them. If not, ask! :)

While all of the above links have merit, and have benefited me greatly in the past, as a linguist "exposed" to various Lucene search engines for the last 15 years, I have to say that elastic-search development is very fast in Python. That being said, some of the code felt non-intuitive to me. So, I reached out to one component of the ELK stack, Kibana, from an open source perspective, and found that I could generate the somewhat cryptic code of elasticsearch very easily in Kibana. Also, I could pull Chrome Sense es queries into Kibana as well. If you use Kibana to evaluate es, it will further speed up your evaluation. What took hours to run on other platforms was up and running in JSON in Sense on top of elasticsearch (RESTful interface) in a few minutes at worst (largest data sets); in seconds at best. The documentation for elasticsearch, while 700+ pages, didn't answer questions I had that normally would be resolved in SOLR or other Lucene documentation, which obviously took more time to analyze. Also, you may want to take a look at Aggregates in elastic-search, which have taken Faceting to a new level.

Bigger picture: if you're doing data science, text analytics, or computational linguistics, elasticsearch has some ranking algorithms that seem to innovate well in the information retrieval area. If you're using any TF/IDF algorithms, Text Frequency/Inverse Document Frequency, elasticsearch extends this 1960's algorithm to a new level, even using BM25, Best Match 25, and other Relevancy Ranking algorithms. So, if you are scoring or ranking words, phrases or sentences, elasticsearch does this scoring on the fly, without the large overhead of other data analytics approaches that take hours--another elasticsearch time savings. With es, combining some of the strengths of bucketing from aggregations with the real-time JSON data relevancy scoring and ranking, you could find a winning combination, depending on either your agile (stories) or architectural(use cases) approach.

Note: did see a similar discussion on aggregations above, but not on aggregations and relevancy scoring--my apology for any overlap. Disclosure: I don't work for elastic and won't be able to benefit in the near future from their excellent work due to a different architecural path, unless I do some charity work with elasticsearch, which wouldn't be a bad idea

var https = require('https');
https.globalAgent.options.secureProtocol = 'SSLv3_method';

Single layer

To initialize the weights of a single layer, use a function from torch.nn.init. For instance:

conv1 = torch.nn.Conv2d(...)
torch.nn.init.xavier_uniform(conv1.weight)

Alternatively, you can modify the parameters by writing to conv1.weight.data (which is a torch.Tensor). Example:

conv1.weight.data.fill_(0.01)

The same applies for biases:

conv1.bias.data.fill_(0.01)

nn.Sequential or custom nn.Module

Pass an initialization function to torch.nn.Module.apply. It will initialize the weights in the entire nn.Module recursively.

apply(fn): Applies fn recursively to every submodule (as returned by .children()) as well as self. Typical use includes initializing the parameters of a model (see also torch-nn-init).

Example:

def init_weights(m):
    if type(m) == nn.Linear:
        torch.nn.init.xavier_uniform(m.weight)
        m.bias.data.fill_(0.01)

net = nn.Sequential(nn.Linear(2, 2), nn.Linear(2, 2))
net.apply(init_weights)

#python3

import datetime
print(
    '1: test-{date:%Y-%m-%d_%H:%M:%S}.txt'.format( date=datetime.datetime.now() )
    )

d = datetime.datetime.now()
print( "2a: {:%B %d, %Y}".format(d))

# see the f" to tell python this is a f string, no .format
print(f"2b: {d:%B %d, %Y}")

print(f"3: Today is {datetime.datetime.now():%Y-%m-%d} yay")

1: test-2018-02-14_16:40:52.txt

2a: March 04, 2018

2b: March 04, 2018

3: Today is 2018-11-11 yay

Description:

Using the new string format to inject value into a string at placeholder {}, value is the current time.

Then rather than just displaying the raw value as {}, use formatting to obtain the correct date format.

https://docs.python.org/3/library/string.html#formatexamples

Option 1: Use .htaccess

If it isn't already there, create an .htaccess file in the Laravel root directory. Create a .htaccess file your Laravel root directory if it does not exists already. (Normally it is under your public_html folder)

Edit the .htaccess file so that it contains the following code:

<IfModule mod_rewrite.c>
   RewriteEngine On 
   RewriteRule ^(.*)$ public/$1 [L]
</IfModule>

Now you should be able to access the website without the "/public/index.php/" part.

Option 2 : Move things in the '/public' directory to the root directory

Make a new folder in your root directory and move all the files and folder except public folder. You can call it anything you want. I'll use "laravel_code".

Next, move everything out of the public directory and into the root folder. It should result in something somewhat similar to this:

After that, all we have to do is edit the locations in the laravel_code/bootstrap/paths.php file and the index.php file.

In laravel_code/bootstrap/paths.php find the following line of code:

'app' => __DIR__.'/../app',
'public' => __DIR__.'/../public',

And change them to:

'app' => __DIR__.'/../app',
'public' => __DIR__.'/../../',

In index.php, find these lines:

require __DIR__.'/../bootstrap/autoload.php';     
$app = require_once __DIR__.'/../bootstrap/start.php';

And change them to:

require __DIR__.'/laravel_code/bootstrap/autoload.php';     
$app = require_once __DIR__.'/laravel_code/bootstrap/start.php';

Source: How to remove /public/ from URL in Laravel

Add a inline wrapper.

<div style='display:flex'>
<form>
 <p>Read this sentence</p>
 <input type='submit' value='or push this button' />
</form>
<div>
    <p>Message here</p>
</div>

I faced the same issue with jdk1.8.0_201.It got resolved when I made JAVA_HOME=C:\Program Files\Java\jdk1.8.0_201 and added "C:\Program Files\Java\jdk1.8.0_201\bin" in path variable

This works with Windows 10, 8.x, 7, and possibly further back:

@echo Started: %date% %time%
.
.
.
@echo Completed: %date% %time%

I know this is an old question and the correct answer, use _blank, has been mentioned several times, but using <a target="somesite.com" target="_blank">Link</a> is a security risk.

It is recommended (performance benefits) to use:

<a href="somesite.com" target="_blank" rel="noopener noreferrer">Link</a>

You can use reset_index to turn the index back into a column:

monthly_mean.reset_index().plot(x='index', y='A')