To somewhat expand on earlier answers, there are a few complications.

telnet is not particularly scriptable; you might prefer to use nc (aka netcat) instead, which handles non-terminal input and signals better.

Also, unlike telnet, nc actually allows SSL (and so https instead of http traffic -- you need port 443 instead of port 80 then).

There is a difference between HTTP 1.0 and 1.1. The recent version of the protocol requires the Host: header to be included in the request on a separate line after the POST or GET line, and to be followed by an empty line to mark the end of the request headers.

The HTTP protocol requires carriage return / line feed line endings. Many servers are lenient about this, but some are not. You might want to use

printf "%\r\n" \
    "GET /questions HTTP/1.1" \
    "Host: stackoverflow.com" \
    "" |
nc --ssl stackoverflow.com 443

If you fall back to HTTP/1.0 you don't always need the Host: header, but many modern servers require the header anyway; if multiple sites are hosted on the same IP address, the server doesn't know from GET /foo HTTP/1.0 whether you mean http://site1.example.com/foo or http://site2.example.net/foo if those two sites are both hosted on the same server (in the absence of a Host: header, a HTTP 1.0 server might just default to a different site than the one you want, so you don't get the contents you wanted).

The HTTPS protocol is identical to HTTP in these details; the only real difference is in how the session is set up initially.

Assuming it's the user's address, some mail servers do allow the SMTP VRFY command to actually verify the email address against its mailboxes. Most of the major site won't give you much information; the gmail response is "if you try to mail it, we'll try to deliver it" or something clever like that.

tcp/465 was initially intended for establishing the SSL(and newer TLS) layer first, and inside doing cleartext or plain old protocols (smtp here)

tcp/587 was intended as a replacement to default tcp/25 port initially when spammers and mass mailing attacks commenced like a decade or more ago, but also during those infamous AOL ages, when some funny ISP had some blocks on default ports outbound (such as that tcp/25) for denying their own customers (AOL) to mass-send emails/spam back then, but AOL-customers needing to use alternative mail-accounts and mail-providers still needed to send their mails from AOL-internet connections, so they could still connect to tcp/587 and do simple smtp on it back then.

The deal with the STARTTLS way to do smtp is to use the two well known originally plain-text tcp/25 and tcp/587 ports, and only when the initial clear-text connect suceeded, to then START the TLS layer (thus STARTTLS) from there on, having a secured connection from that point onwards.

As for debugging these kind of things maybe via command-line tools, for example for windows there is the historical blat command line mailer (smtp), which up till today cant do TLS (STARTTLS) so it can only use plain-text smtp to send its mails.

http://www.blat.net/

Then there are numerous projects freeware and open source software that have more capabilities and features, such as

smtp client: mailsend @ googlecode http://code.google.com/p/mailsend/

smtp client: msmtp @ sourceforge (related to mpop below) http://msmtp.sourceforge.net/

pop3 client: mpop @ sourceforge http://mpop.sourceforge.net/

First of all, a caveat. Why do you want to use telnet? telnet is an old protocol, unsafe and impractical for remote access. It's been (almost)totally replaced by ssh.

To answer your questions, it depends. It depends on the telnet client you use. If you use microsoft telnet, you can't. Microsoft telnet does not have any mean to send commands from a batch file or a command line.

Write the telnet session inside a BAT Dos file and execute.

Base on @mu ? answer here. I've written a cache dump script.

The script dumps all the content of a memcached server. It's tested with Ubuntu 12.04 and a localhost memcached, so your milage may vary.

#!/usr/bin/env bash

echo 'stats items'  \
| nc localhost 11211  \
| grep -oe ':[0-9]*:'  \
| grep -oe '[0-9]*'  \
| sort  \
| uniq  \
| xargs -L1 -I{} bash -c 'echo "stats cachedump {} 1000" | nc localhost 11211'

What it does, it goes through all the cache slabs and print 1000 entries of each.

Please be aware of certain limits of this script i.e. it may not scale for a 5GB cache server for example. But it's useful for debugging purposes on a local machine.

While I'd suggest using expect, too, for non-interactive use the normal shell commands might suffice. Telnet accepts its command on stdin, so you just need to pipe or write the commands into it:

telnet 10.1.1.1 <<EOF
remotecommand 1
remotecommand 2
EOF

(Edit: Judging from the comments, the remote command needs some time to process the inputs or the early SIGHUP is not taken gracefully by the telnet. In these cases, you might try a short sleep on the input:)

{ echo "remotecommand 1"; echo "remotecommand 2"; sleep 1; } | telnet 10.1.1.1

In any case, if it's getting interactive or anything, use expect.

I believe telnet 74.255.12.25 8089 . Why don't u try both

Actually, this has nothing to do with the usual Windows / Unix \r\n vs \n issue. The TELNET procotol itself defines \r\n as the end-of-line sequence, independently of the operating system. See RFC854.

As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:

nc -z <host> <port>

That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.

For a quick interactive check (with a 5 seconds timeout):

nc -z -v -w5 <host> <port>

Best C# Telnet Lib I've found is called Minimalistic Telnet. Very easy to understand, use and modify. It works great for the Cisco routers I need to configure.

http://www.codeproject.com/KB/IP/MinimalisticTelnet.aspx

The prototype-solution from Krishna Chytanya is very nice, but needs a minor but important improvement. The days param must be parsed as Integer to avoid weird calculations when days is a String like "1". (I needed several hours to find out, what went wrong in my application.)

Date.prototype.addDays = function(days) {
    this.setDate(this.getDate() + parseInt(days));
    return this;
};

Even if you do not use this prototype function: Always be sure to have an Integer when using setDate().

If you explicitly setPreferredSize(new Dimension(X, Y)); then it is better to use:

setLocation(dim.width/2-this.getPreferredSize().width/2, dim.height/2-this.getPreferredSize().height/2);

You can find out what library depends on a wrong version of the support library and exclude it like this:

compile ('com.stripe:stripe-android:5.1.1') {
    exclude group: 'com.android.support'
  }

stripe-android in my case.

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.

window.top.location.href = 'index.html';

This will redirect the main window to the index page. Thanks

Asp.Net Core 3 with System.Text.Json

public void ConfigureServices(IServiceCollection services)
{

    services
        .AddControllers()
        .AddJsonOptions(options => 
           options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter())
        );

    //...
 }

With this, you can perform some code in the get or set scope.

private string _myProperty;
public string myProperty
{
    get { return _myProperty; }
    set { _myProperty = value; }
}

You also can use automatic properties:

public string myProperty
{
    get;
    set;
}

And .Net Framework will manage for you. It was create because it is a good pratice and make it easy to do.

You also can control the visibility of these scopes, for sample:

public string myProperty
{
    get;
    private set;
}

public string myProperty2
{
    get;
    protected set;
}

public string myProperty3
{
    get; 
}

Update

Now in C# you can initialize the value of a property. For sample:

public int Property { get; set; } = 1;

If also can define it and make it readonly, without a set.

public int Property { get; } = 1;

And finally, you can define an arrow function.

public int Property => GetValue();

I think below link might help you -

http://svenaelterman.wordpress.com/2012/04/14/step-by-step-enabling-semantic-search-on-sql-server-2012/

Astah UML (ex-JUDE) is pretty good.

I think Octave only return one value which is the first return value, in your case, 'array'.

And Octave print it as "ans".

Others, 'listp','freep' were not printed.

Because it showed up within the function.

Try this out:

[ A, B, C] = initialize( 4 )

And the 'array','listp','freep' will print as A, B and C.

You can try this:

public String ConnectionQuality() {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return "UNKNOWN";
    }

    if(info.getType() == ConnectivityManager.TYPE_WIFI) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        int numberOfLevels = 5;
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();
        int level = WifiManager.calculateSignalLevel(wifiInfo.getRssi(), numberOfLevels);
        if(level == 2 )
                return "POOR";
            else if(level == 3 )
                return "MODERATE";
            else if(level == 4 )
                return "GOOD";
            else if(level == 5 )
                return "EXCELLENT";
            else
            return "UNKNOWN";
        }else if(info.getType() == ConnectivityManager.TYPE_MOBILE) {
            int networkClass = getNetworkClass(getNetworkType(context));
            if(networkClass == 1)
                return "POOR";
            else if(networkClass == 2 )
                return "GOOD";
            else if(networkClass == 3 )
                return "EXCELLENT";
            else
                return "UNKNOWN";
        }else
            return "UNKNOWN";  
}

public NetworkInfo getInfo(Context context) {
    return ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
}

public int getNetworkClass(int networkType) {
    try {
      return getNetworkClassReflect(networkType);
    }catch (Exception ignored) {
    }

    switch (networkType) {
      case TelephonyManager.NETWORK_TYPE_GPRS:
      case 16: // TelephonyManager.NETWORK_TYPE_GSM:
      case TelephonyManager.NETWORK_TYPE_EDGE:
      case TelephonyManager.NETWORK_TYPE_CDMA:
      case TelephonyManager.NETWORK_TYPE_1xRTT:
      case TelephonyManager.NETWORK_TYPE_IDEN:
        return 1;
      case TelephonyManager.NETWORK_TYPE_UMTS:
      case TelephonyManager.NETWORK_TYPE_EVDO_0:
      case TelephonyManager.NETWORK_TYPE_EVDO_A:
      case TelephonyManager.NETWORK_TYPE_HSDPA:
      case TelephonyManager.NETWORK_TYPE_HSUPA:
      case TelephonyManager.NETWORK_TYPE_HSPA:
      case TelephonyManager.NETWORK_TYPE_EVDO_B:
      case TelephonyManager.NETWORK_TYPE_EHRPD:
      case TelephonyManager.NETWORK_TYPE_HSPAP:
      case 17: // TelephonyManager.NETWORK_TYPE_TD_SCDMA:
        return 2;
      case TelephonyManager.NETWORK_TYPE_LTE:
      case 18: // TelephonyManager.NETWORK_TYPE_IWLAN:
        return 3;
      default:
        return 0;
    }
}

private int getNetworkClassReflect(int networkType) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {  
    Method getNetworkClass = TelephonyManager.class.getDeclaredMethod("getNetworkClass", int.class);
    if (!getNetworkClass.isAccessible()) {
      getNetworkClass.setAccessible(true);
    }
    return (Integer) getNetworkClass.invoke(null, networkType); 
}

public static int getNetworkType(Context context) {
    return ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)).getNetworkType();
}

SELECT DATEDIFF (MyUnits, '2010-01-22 15:29:55.090', '2010-01-22 15:30:09.153')

Substitute "MyUnits" based on DATEDIFF on MSDN

On my Linux system (Centos 6.2), there is a significant difference between declaring the target .PHONY and creating a fake dependency on FORCE, when the rule actually does create a file matching the target. When the file must be regenerated every time, it required both the fake dependency FORCE on the file, and .PHONY for the fake dependency.

wrong:

date > $@

right:

FORCE
    date > $@
FORCE:
    .PHONY: FORCE

You control how a row or column aligns its children using the mainAxisAlignment and crossAxisAlignment properties. For a row, the main axis runs horizontally and the cross axis runs vertically. For a column, the main axis runs vertically and the cross axis runs horizontally.

 mainAxisAlignment: MainAxisAlignment.center,
 crossAxisAlignment: CrossAxisAlignment.center,

Here is a solution which sorts the properties alphabetically and prints them all together with their values:

public void logProperties() throws IllegalArgumentException, IllegalAccessException {
  Class<?> aClass = this.getClass();
  Field[] declaredFields = aClass.getDeclaredFields();
  Map<String, String> logEntries = new HashMap<>();

  for (Field field : declaredFields) {
    field.setAccessible(true);

    Object[] arguments = new Object[]{
      field.getName(),
      field.getType().getSimpleName(),
      String.valueOf(field.get(this))
    };

    String template = "- Property: {0} (Type: {1}, Value: {2})";
    String logMessage = System.getProperty("line.separator")
            + MessageFormat.format(template, arguments);

    logEntries.put(field.getName(), logMessage);
  }

  SortedSet<String> sortedLog = new TreeSet<>(logEntries.keySet());

  StringBuilder sb = new StringBuilder("Class properties:");

  Iterator<String> it = sortedLog.iterator();
  while (it.hasNext()) {
    String key = it.next();
    sb.append(logEntries.get(key));
  }

  System.out.println(sb.toString());
}

Pass multiple -v arguments.

For instance:

docker -v /on/my/host/1:/on/the/container/1 \
       -v /on/my/host/2:/on/the/container/2 \
       ...

You should read this blog that speed tested several different types of collections and methods for each using both single and multi-threaded techniques.

According to the results, a BinarySearch on a List and SortedList were the top performers constantly running neck-in-neck when looking up something as a "value".

When using a collection that allows for "keys", the Dictionary, ConcurrentDictionary, Hashset, and HashTables performed the best overall.

As an option to kasdega's code above, instead of appending the tab to the current value, you can instead insert characters at the current cursor point. This has the benefit of:

• allows you to insert 4 spaces as an alternative to tab
• undo and redo will work with the inserted characters (it won't with the OP)

so replace

    // set textarea value to: text before caret + tab + text after caret
    $(this).val($(this).val().substring(0, start)
                + "\t"
                + $(this).val().substring(end));

with

    // set textarea value to: text before caret + tab + text after caret
    document.execCommand("insertText", false, '    ');

In React Native , This worked for me

name = "hi \n\ruser"
name.replace( /[\r\n]+/gm, ""); // hi user

In case it helps others, I got this error when the service the task was running at didn't have write permission to the executable location. It was attempting to write a log file there.

DateTime begindate = Convert.ToDateTime("01/Jan/2018");
DateTime enddate = Convert.ToDateTime("12 Feb 2018");
 while (begindate < enddate)
 {
    begindate= begindate.AddDays(1);
    Console.WriteLine(begindate + "  " + enddate);
 }

As an alternate to adding a comma for each item you could just using String.Join:

var strgroupids = String.Join(",",  groupIds);

This will add the seperator ("," in this instance) between each element in the array.

Special thanks to Stoic for

   $("#miscCategory").animate({scrollTop: $("#miscCategory").offset().top});

You're looking for

foreach (Control x in this.Controls)
{
  if (x is TextBox)
  {
    ((TextBox)x).Text = String.Empty;
  }
}

Okay, the basic difference at the machine is that double precision uses twice as many bits as single. In the usual implementation,that's 32 bits for single, 64 bits for double.

But what does that mean? If we assume the IEEE standard, then a single precision number has about 23 bits of the mantissa, and a maximum exponent of about 38; a double precision has 52 bits for the mantissa, and a maximum exponent of about 308.

The details are at Wikipedia, as usual.

I encountered the same situation. And I find out it is because the pip should be updated. It may be the same reason for your problem.

you can use @$variable in your single blade file for create and edit. it will not through error when variable not defined.

<input name="name" value="@{{$your_variable->name}}">

Just run the following line at the end of your function:

$scope.$apply()

I came up with this one liner recently for getting True if a list contains any number of occurrences of an item, or False if it contains no occurrences or nothing at all. Using next(...) gives this a default return value (False) and means it should run significantly faster than running the whole list comprehension.

list_does_contain = next((True for item in list_to_test if item == test_item), False)

You can handle the attribute onClick for both i.e. 'ok' & 'cancel' condition like ternary operator

Scenario: Here is the scenario that I wants to show confirm box which will ask for 'ok' or 'cancel' while performing a delete action. In that I want if user click on 'ok' then the form action will redirect to page location and on cancel page will not respond.

Adding further explanation i'm having one button with type="submit" which is originally use default form action of form tag. and I want above scenario on delete button with same input type.

So below code is working properly for me

onClick="return confirm('Are you sure you want to Delete ?')?this.form.action='<?php echo $_SERVER['PHP_SELF'] ?>':false;"

Full code

<input type="submit" name="action" id="Delete" value="Delete" onClick="return confirm('Are you sure you want to Delete ?')?this.form.action='<?php echo $_SERVER['PHP_SELF'] ?>':false;">

And by the way I'm implementing this code as inline in html element using PHP. so that's why I used 'echo $_SERVER['PHP_SELF']'.

I hope it will work for you also. Thank You

An easy way of doing this is to use JavaScript like so:

element.addEventListener('click', (e => {
    e.preventDefault();

    element.style = '<insert CSS here as you would in a style attribute>';
}));

Try this :

use Illuminate\Support\Facades\Request;
public function add_question(Request $request)
{
    return $request->all();
}

One of Androids powerful feature is the AsyncTask class.

To work with it, you have to first extend it and override doInBackground(...). doInBackground automatically executes on a worker thread, and you can add some listeners on the UI Thread to get notified about status update, those functions are called: onPreExecute(), onPostExecute() and onProgressUpdate()

You can find a example here.

Refer to below post for other alternatives:

Handler vs AsyncTask vs Thread

$('#button').click(function(){
    $(this).addClass('active');
});

'cacerts' is a truststore. A trust store is used to authenticate peers. A keystore is used to authenticate yourself.

You must use require_once() function.

Use @Input to pass your data to child components and then use ngOnChanges (https://angular.io/api/core/OnChanges) to see if that @Input changed on the fly.

The idea is to extract the keys of your map into an array. Sort this array. Then iterate over this sorted array, get its value pair from the unsorted map and put them into a new map. The new map will be in sorted order. The code below is it's implementation:

var unsortedMap = new Map();
unsortedMap.set('2-1', 'foo');
unsortedMap.set('0-1', 'bar');

// Initialize your keys array
var keys = [];
// Initialize your sorted maps object
var sortedMap = new Map();

// Put keys in Array
unsortedMap.forEach(function callback(value, key, map) {
    keys.push(key);
});

// Sort keys array and go through them to put in and put them in sorted map
keys.sort().map(function(key) {
    sortedMap.set(key, unsortedMap.get(key));
});

// View your sorted map
console.log(sortedMap);

you can try:

Array(6).join('a').split(''); // returns ['a','a','a','a','a'] (5 times)

Update (01/06/2018):

Now you can have a set of characters repeating.

new Array(5).fill('a'); // give the same result as above;
// or
Array.from({ length: 5 }).fill('a')

Note: Check more about fill(...) and from(...) for compatibility and browser support.

Update (05/11/2019):

Another way, without using fill or from, that works for string of any length:

Array.apply(null, Array(3)).map(_ => 'abc') // ['abc', 'abc', 'abc']

Same as above answer. Adding for sake of completeness.

Check here for the archived link originally used in this answer.

From that link:

In theory, the onKeyDown and onKeyUp events represent keys being pressed or released, while the onKeyPress event represents a character being typed. The implementation of the theory is not same in all browsers.

or you can use a simple approach and just convert the string's case to substring's case and then use contains method.

I'm implementing it in Play Framework and for me it worked like this:

1) Notice that I used data-rule-equalTo in input tag for the id inputPassword1. The code section of userform in my Modal:

<div class="form-group">
    <label for="pass1">@Messages("authentication.password")</label>
    <input class="form-control required" id="inputPassword1" placeholder="@Messages("authentication.password")" type="password" name="password" maxlength=10 minlength=5>
</div>
<div class="form-group">
    <label for="pass2">@Messages("authentication.password2")</label>
    <input class="form-control required" data-rule-equalTo="#inputPassword1" id="inputPassword2" placeholder="@Messages("authentication.password")" type="password" name="password2">
</div>

2)Since I used validator within a Modal

$(document).on("click", ".createUserModal", function () {
       $(this).find('#userform').validate({
           rules: {
               firstName: "required",
               lastName: "required",
               nationalId: {
                   required: true,
                   digits:true
               },
               email: {
                   required: true,
                   email: true
               },
               optradio: "required",
               password :{
                   required: true,
                   minlength: 5
               },
               password2: {
                   required: true
               }
           },
           highlight: function (element) {
               $(element).parent().addClass('error')
           },
           unhighlight: function (element) {
               $(element).parent().removeClass('error')
           },
           onsubmit: true
       });

   });

Hope it helps someone :).

This may be what you are looking for:

http://jsfiddle.net/L4L67/

body>div {_x000D_
  background: #aaa;_x000D_
  display: flex;_x000D_
  flex-wrap: wrap;_x000D_
}_x000D_
_x000D_
body>div>div {_x000D_
  flex-grow: 1;_x000D_
  width: 33%;_x000D_
  height: 100px;_x000D_
}_x000D_
_x000D_
body>div>div:nth-child(even) {_x000D_
  background: #23a;_x000D_
}_x000D_
_x000D_
body>div>div:nth-child(odd) {_x000D_
  background: #49b;_x000D_
}

<div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
</div>

All tables should have a primary key (consisting of a single or multiple columns), duplicate rows doesn't make sense in a relational database. You can limit the number of delete rows using LIMIT though:

DELETE FROM orders WHERE id_users = 1 AND id_product = 2 LIMIT 1

But that just solves your current issue, you should definitely work on the bigger issue by defining primary keys.

<resource>
<style name="button">
<item name="android:textSize">15dp</item>
</style>
<resource>

You should first consider making GetStringData an async method and have it await the task returned from MyAsyncMethod.

If you're absolutely sure that you don't need to handle exceptions from MyAsyncMethod or know when it completes, then you can do this:

public string GetStringData()
{
  var _ = MyAsyncMethod();
  return "hello world";
}

BTW, this is not a "common problem". It's very rare to want to execute some code and not care whether it completes and not care whether it completes successfully.

Update:

Since you're on ASP.NET and wanting to return early, you may find my blog post on the subject useful. However, ASP.NET was not designed for this, and there's no guarantee that your code will run after the response is returned. ASP.NET will do its best to let it run, but it can't guarantee it.

So, this is a fine solution for something simple like tossing an event into a log where it doesn't really matter if you lose a few here and there. It's not a good solution for any kind of business-critical operations. In those situations, you must adopt a more complex architecture, with a persistent way to save the operations (e.g., Azure Queues, MSMQ) and a separate background process (e.g., Azure Worker Role, Win32 Service) to process them.

Quoting the iPhone OS Technology Overview:

iPhone OS provides support for full-screen video playback through the Media Player framework (MediaPlayer.framework). This framework supports the playback of movie files with the .mov, .mp4, .m4v, and .3gp filename extensions and using the following compression standards:

• H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
• H.264 video, up to 768 Kbps, 320 by 240 pixels, 30 frames per second, Baseline Profile up to Level 1.3 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
• MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
• Numerous audio formats, including the ones listed in “Audio Technologies”

For information about the classes of the Media Player framework, see Media Player Framework Reference.

All these answers are nice however when thinking about it....
Sometimes the most simple approach without sophistication will do the trick quicker and with no special functions.

We first set the arrays:

$arr1 = Array(
"cod" => ddd,
"denum" => ffffffffffffffff,
"descr" => ggggggg,
"cant" => 3
);
$arr2 = Array
(
"cod" => fff,
"denum" => dfgdfgdfgdfgdfg,
"descr" => dfgdfgdfgdfgdfg,
"cant" => 33
);

Then we add them to the new array :

$newArr[] = $arr1;
$newArr[] = $arr2;

Now lets see our new array with all the keys:

print_r($newArr);

There's no need for sql or special functions to build a new multi-dimensional array.... don't use a tank to get to where you can walk.

To get rid of the if/else awkwardness you could use a using block:

@{
    var count = 0;
    foreach (var item in Model)
    {
        using(Html.TableRow(new { @class = (count++ % 2 == 0) ? "alt-row" : "" }))
        {
            <td>
                @Html.DisplayFor(modelItem => item.Title)
            </td>
            <td>
                @Html.Truncate(item.Details, 75)
            </td>
            <td>
                <img src="@Url.Content("~/Content/Images/Projects/")@item.Images.Where(i => i.IsMain == true).Select(i => i.Name).Single()" 
                    alt="@item.Images.Where(i => i.IsMain == true).Select(i => i.AltText).Single()" class="thumb" />
            </td>
            <td>
                @Html.ActionLink("Edit", "Edit", new { id=item.ProjectId }) |
                @Html.ActionLink("Details", "Details", new { id = item.ProjectId }) |
                @Html.ActionLink("Delete", "Delete", new { id=item.ProjectId })
            </td>
        }
    }
}

Reusable element that make it easier to add attributes:

//Block is take from http://www.codeducky.org/razor-trick-using-block/
public class TableRow : Block
{
    private object _htmlAttributes;
    private TagBuilder _tr;

    public TableRow(HtmlHelper htmlHelper, object htmlAttributes) : base(htmlHelper)
    {
        _htmlAttributes = htmlAttributes;
    }

    public override void BeginBlock()
    {
        _tr = new TagBuilder("tr");
        _tr.MergeAttributes(HtmlHelper.AnonymousObjectToHtmlAttributes(_htmlAttributes));
        this.HtmlHelper.ViewContext.Writer.Write(_tr.ToString(TagRenderMode.StartTag));
    }

    protected override void EndBlock()
    {
        this.HtmlHelper.ViewContext.Writer.Write(_tr.ToString(TagRenderMode.EndTag));
    }
}

Helper method to make razor syntax clearer:

public static TableRow TableRow(this HtmlHelper self, object htmlAttributes)
{
    var tableRow = new TableRow(self, htmlAttributes);
    tableRow.BeginBlock();
    return tableRow;
}

One can access the "Find in Files" window via the drop-down menu selection and search all files in the Entire Solution: Edit > Find and Replace > Find in Files

Other, alternative is to open the "Find in Files" window via the "Standard Toolbars" button as highlighted in the below screen-short:

For Microsoft SQL Server you can return the @@ROWCOUNT variable to return the number of rows affected by the last statement in the stored procedure.

Here is how to know active shortcut (depending on your OS and notebook version, it might change)

Help > Keyboard Shortcuts > toggle line numbers

On OSX running ipython3 it was ESC L

It's looking for the file in the current directory.

First, go to that directory

cd /users/gcameron/Desktop/map

And then try to run it

python colorize_svg.py

make your hint at final position in your string array like this City is the hint here

array_city = new String[]{"Irbed", "Amman", "City"};

and then in your array adapter

ArrayAdapter<String> adapter_city = new ArrayAdapter<String>(getContext(), android.R.layout.simple_spinner_item, array_city) {
            @Override
            public int getCount() {
                // to show hint "Select Gender" and don't able to select
                return array_city.length-1;
            }
        };

so the adapter return just first two item and finally in onCreate() method or what ,,, make Spinner select the hint

yourSpinner.setSelection(array_city.length - 1);

Update 2018

Here's a simple example using Bootstrap 4 with ChartJs. Use an HTML5 Canvas element for the chart...

<div class="container">
    <div class="row">
        <div class="col-md-6">
            <div class="card">
                <div class="card-body">
                    <canvas id="chLine"></canvas>
                </div>
            </div>
        </div>
     </div>     
</div>

And then the appropriate JS to populate the chart...

var colors = ['#007bff','#28a745'];
var chLine = document.getElementById("chLine");
var chartData = {
  labels: ["S", "M", "T", "W", "T", "F", "S"],
  datasets: [{
    data: [589, 445, 483, 503, 689, 692, 634],
    borderColor: colors[0],
    borderWidth: 4,
    pointBackgroundColor: colors[0]
  },
  {
    data: [639, 465, 493, 478, 589, 632, 674],
    borderColor: colors[1],
    borderWidth: 4,
    pointBackgroundColor: colors[1]
  }]
};
if (chLine) {
  new Chart(chLine, {
  type: 'line',
  data: chartData,
  options: {
    scales: {
      yAxes: [{
        ticks: {
          beginAtZero: false
        }
      }]
    },
    legend: {
      display: false
    }
  }
  });
}

Bootstrap 4 Charts Demo

You could use Synonyms part in the database.

Then in view wizard from Synonyms tab find your saved synonyms and add to view and set inner join simply.

I've done this before where in windows you install first into your base python installation.

Then, you manually copy the installed psycopg2 to the virtualenv install.

It's not pretty, but it works.

The port is usually fixed, for DNS it's 53.

You're looking for fmod().

I guess to more specifically answer your question, in older languages the % operator was just defined as integer modular division and in newer languages they decided to expand the definition of the operator.

EDIT: If I were to wager a guess why, I would say it's because the idea of modular arithmetic originates in number theory and deals specifically with integers.

For me, this was an issue with cyclic dependencies.

IOW, module A required module B, and module B required module A.

So in module B, require('./A') is an empty object rather than a function.

How to deal with cyclic dependencies in Node.js

The easiest way that I found for adding a column to a DataFrame was to use the "add" function. Here's a snippet of code, also with the output to a CSV file. Note that including the "columns" argument allows you to set the name of the column (which happens to be the same as the name of the np.array that I used as the source of the data).

#  now to create a PANDAS data frame
df = pd.DataFrame(data = FF_maxRSSBasal, columns=['FF_maxRSSBasal'])
# from here on, we use the trick of creating a new dataframe and then "add"ing it
df2 = pd.DataFrame(data = FF_maxRSSPrism, columns=['FF_maxRSSPrism'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = FF_maxRSSPyramidal, columns=['FF_maxRSSPyramidal'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = deltaFF_strainE22, columns=['deltaFF_strainE22'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = scaled, columns=['scaled'])
df = df.add( df2, fill_value=0 )
df2 = pd.DataFrame(data = deltaFF_orientation, columns=['deltaFF_orientation'])
df = df.add( df2, fill_value=0 )
#print(df)
df.to_csv('FF_data_frame.csv')

Is the below what you were looking for?

int index = string.indexOf(character);
return index != -1;

To answer your titular question, you use [0] to access the first element, but as it stands mandrill_events contains a string not an array, so mandrill_events[0] will just get you the first character, '['.

So either correct your source to:

var req = { mandrill_events: [{"event":"inbound","ts":1426249238}] };

and then req.mandrill_events[0], or if you're stuck with it being a string, parse the JSON the string contains:

var req = { mandrill_events: '[{"event":"inbound","ts":1426249238}]' };
var mandrill_events = JSON.parse(req.mandrill_events);
var result = mandrill_events[0];

Both of the following code will work fine for removing highchart.com from the chart:-

credits: false

or

credits:{
 enabled:false,
}

So far, nobody has answered the actual question.

Someone can figure what is happening ?

The problem here is that while the value of your $JAVA_HOME is correct, you defined it in the wrong place.

• When you open a terminal and launch a Bash session, it will read the ~/.bash_profile file. Thus, when you enter echo $JAVA_HOME, it will return the value that has been set there.
• When you launch IntelliJ directly, it will not read ~/.bash_profile … why should it? So to IntelliJ, this variable is not set.

There are two possible solutions to this:

• Launch IntelliJ from a Bash session: open a terminal and run "/Applications/IntelliJ IDEA.app/Contents/MacOS/idea". The idea process will inherit any environment variables of Bash that have been exported. (Since you did export JAVA_HOME=…, it works!), or, the sophisticated way:

• Set global environment variables that apply to all programs, not only Bash sessions. This is more complicated than you might think, and is explained here and here, for example. What you should do is run

  /bin/launchctl setenv JAVA_HOME $(/usr/libexec/java_home)
  

  However, this gets reset after a reboot. To make sure this gets run on every boot, execute

  cat << EOF > ~/Library/LaunchAgents/setenv.JAVA_HOME.plist
  <?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
      "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <plist version="1.0">
    <dict>
      <key>Label</key>
      <string>setenv.JAVA_HOME</string>
      <key>ProgramArguments</key>
      <array>
        <string>/bin/launchctl</string>
        <string>setenv</string>
        <string>JAVA_HOME</string>
        <string>$(/usr/libexec/java_home)</string>
      </array>
      <key>RunAtLoad</key>
      <true/>
      <key>ServiceIPC</key>
      <false/>
    </dict>
  </plist>
  EOF
  

  Note that this also affects the Terminal process, so there is no need to put anything in your ~/.bash_profile.

global $post;
echo $post->ID;

No need to use any external library.

You can use this class instead :) (handles even lists , nested lists and json)

public class Utility {

    public static Map<String, Object> jsonToMap(Object json) throws JSONException {

        if(json instanceof JSONObject)
            return _jsonToMap_((JSONObject)json) ;

        else if (json instanceof String)
        {
            JSONObject jsonObject = new JSONObject((String)json) ;
            return _jsonToMap_(jsonObject) ;
        }
        return null ;
    }


   private static Map<String, Object> _jsonToMap_(JSONObject json) throws JSONException {
        Map<String, Object> retMap = new HashMap<String, Object>();

        if(json != JSONObject.NULL) {
            retMap = toMap(json);
        }
        return retMap;
    }


    private static Map<String, Object> toMap(JSONObject object) throws JSONException {
        Map<String, Object> map = new HashMap<String, Object>();

        Iterator<String> keysItr = object.keys();
        while(keysItr.hasNext()) {
            String key = keysItr.next();
            Object value = object.get(key);

            if(value instanceof JSONArray) {
                value = toList((JSONArray) value);
            }

            else if(value instanceof JSONObject) {
                value = toMap((JSONObject) value);
            }
            map.put(key, value);
        }
        return map;
    }


    public static List<Object> toList(JSONArray array) throws JSONException {
        List<Object> list = new ArrayList<Object>();
        for(int i = 0; i < array.length(); i++) {
            Object value = array.get(i);
            if(value instanceof JSONArray) {
                value = toList((JSONArray) value);
            }

            else if(value instanceof JSONObject) {
                value = toMap((JSONObject) value);
            }
            list.add(value);
        }
        return list;
    }
}

To convert your JSON string to hashmap use this :

HashMap<String, Object> hashMap = new HashMap<>(Utility.jsonToMap(

In layman terms we can say that Persistence Context is an environment where entities are managed, i.e it syncs "Entity" with the database.

Unlike the other answers, return false is only part of the answer. Consider the scenario in which a JS error occurs prior to the return statement...

html

<form onsubmit="return mySubmitFunction(event)">
  ...
</form>

script

function mySubmitFunction()
{
  someBug()
  return false;
}

returning false here won't be executed and the form will be submitted either way. You should also call preventDefault to prevent the default form action for Ajax form submissions.

function mySubmitFunction(e) {
  e.preventDefault();
  someBug();
  return false;
}

In this case, even with the bug the form won't submit!

Alternatively, a try...catch block could be used.

function mySubmit(e) { 
  e.preventDefault(); 
  try {
   someBug();
  } catch (e) {
   throw new Error(e.message);
  }
  return false;
}

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

Works for me.

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

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

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

Browser technology currently doesn't support downloading a file directly from an Ajax request. The work around is to add a hidden form and submit it behind the scenes to get the browser to trigger the Save dialog.

I'm running a standard Flux implementation so I'm not sure what the exact Redux (Reducer) code should be, but the workflow I just created for a file download goes like this...

1. I have a React component called FileDownload. All this component does is render a hidden form and then, inside componentDidMount, immediately submit the form and call it's onDownloadComplete prop.
2. I have another React component, we'll call it Widget, with a download button/icon (many actually... one for each item in a table). Widget has corresponding action and store files. Widget imports FileDownload.
3. Widget has two methods related to the download: handleDownload and handleDownloadComplete.
4. Widget store has a property called downloadPath. It's set to null by default. When it's value is set to null, there is no file download in progress and the Widget component does not render the FileDownload component.
5. Clicking the button/icon in Widget calls the handleDownload method which triggers a downloadFile action. The downloadFile action does NOT make an Ajax request. It dispatches a DOWNLOAD_FILE event to the store sending along with it the downloadPath for the file to download. The store saves the downloadPath and emits a change event.
6. Since there is now a downloadPath, Widget will render FileDownload passing in the necessary props including downloadPath as well as the handleDownloadComplete method as the value for onDownloadComplete.
7. When FileDownload is rendered and the form is submitted with method="GET" (POST should work too) and action={downloadPath}, the server response will now trigger the browser's Save dialog for the target download file (tested in IE 9/10, latest Firefox and Chrome).
8. Immediately following the form submit, onDownloadComplete/handleDownloadComplete is called. This triggers another action that dispatches a DOWNLOAD_FILE event. However, this time downloadPath is set to null. The store saves the downloadPath as null and emits a change event.
9. Since there is no longer a downloadPath the FileDownload component is not rendered in Widget and the world is a happy place.

Widget.js - partial code only

import FileDownload from './FileDownload';

export default class Widget extends Component {
    constructor(props) {
        super(props);
        this.state = widgetStore.getState().toJS();
    }

    handleDownload(data) {
        widgetActions.downloadFile(data);
    }

    handleDownloadComplete() {
        widgetActions.downloadFile();
    }

    render() {
        const downloadPath = this.state.downloadPath;

        return (

            // button/icon with click bound to this.handleDownload goes here

            {downloadPath &&
                <FileDownload
                    actionPath={downloadPath}
                    onDownloadComplete={this.handleDownloadComplete}
                />
            }
        );
    }

widgetActions.js - partial code only

export function downloadFile(data) {
    let downloadPath = null;

    if (data) {
        downloadPath = `${apiResource}/${data.fileName}`;
    }

    appDispatcher.dispatch({
        actionType: actionTypes.DOWNLOAD_FILE,
        downloadPath
    });
}

widgetStore.js - partial code only

let store = Map({
    downloadPath: null,
    isLoading: false,
    // other store properties
});

class WidgetStore extends Store {
    constructor() {
        super();
        this.dispatchToken = appDispatcher.register(action => {
            switch (action.actionType) {
                case actionTypes.DOWNLOAD_FILE:
                    store = store.merge({
                        downloadPath: action.downloadPath,
                        isLoading: !!action.downloadPath
                    });
                    this.emitChange();
                    break;

FileDownload.js
- complete, fully functional code ready for copy and paste
- React 0.14.7 with Babel 6.x ["es2015", "react", "stage-0"]
- form needs to be display: none which is what the "hidden" className is for

import React, {Component, PropTypes} from 'react';
import ReactDOM from 'react-dom';

function getFormInputs() {
    const {queryParams} = this.props;

    if (queryParams === undefined) {
        return null;
    }

    return Object.keys(queryParams).map((name, index) => {
        return (
            <input
                key={index}
                name={name}
                type="hidden"
                value={queryParams[name]}
            />
        );
    });
}

export default class FileDownload extends Component {

    static propTypes = {
        actionPath: PropTypes.string.isRequired,
        method: PropTypes.string,
        onDownloadComplete: PropTypes.func.isRequired,
        queryParams: PropTypes.object
    };

    static defaultProps = {
        method: 'GET'
    };

    componentDidMount() {
        ReactDOM.findDOMNode(this).submit();
        this.props.onDownloadComplete();
    }

    render() {
        const {actionPath, method} = this.props;

        return (
            <form
                action={actionPath}
                className="hidden"
                method={method}
            >
                {getFormInputs.call(this)}
            </form>
        );
    }
}

I've had a lot of problems trying to get Eclipse to accept as much memory as I'd like it to be able to use (between 2 and 4 gigs for example).

Open eclipse.ini in the Eclipse installation directory. You should be able to change the memory sizes after -vmargs up to 1024 without a problem up to some maximum value that's dependent on your system. Here's that section on my Linux box:

-vmargs
-Dosgi.requiredJavaVersion=1.5
-XX:MaxPermSize=512m
-Xms512m
-Xmx1024m

And here's that section on my Windows box:

-vmargs
-Xms256m
-Xmx1024m

But, I've failed at setting it higher than 1024 megs. If anybody knows how to make that work, I'd love to know.

EDIT: 32bit version of juno seems to not accept more than Xmx1024m where the 64 bit version accept 2048.

EDIT: Nick's post contains some great links that explain two different things:

• The problem is largely dependent on your system and the amount of contiguous free memory available, and
• By using javaw.exe (on Windows), you may be able to get a larger allocated block of memory.

I have 8 gigs of Ram and can't set -Xmx to more than 1024 megs of ram, even when a minimal amount of programs are loaded and both windows/linux report between 4 and 5 gigs of free ram.

If I'm doing something complicated I'll use curses to read keys. But a lot of times I just want a simple Python 3 script that uses the standard library and can read arrow keys, so I do this:

import sys, termios, tty

key_Enter = 13
key_Esc = 27
key_Up = '\033[A'
key_Dn = '\033[B'
key_Rt = '\033[C'
key_Lt = '\033[D'

fdInput = sys.stdin.fileno()
termAttr = termios.tcgetattr(0)

def getch():
    tty.setraw(fdInput)
    ch = sys.stdin.buffer.raw.read(4).decode(sys.stdin.encoding)
    if len(ch) == 1:
        if ord(ch) < 32 or ord(ch) > 126:
            ch = ord(ch)
    elif ord(ch[0]) == 27:
        ch = '\033' + ch[1:]
    termios.tcsetattr(fdInput, termios.TCSADRAIN, termAttr)
    return ch

The new operator is allocating space for a block of n integers and assigning the memory address of that block to the int* variable array.

The general form of new as it applies to one-dimensional arrays appears as follows:

array_var = new Type[desired_size];

Other replies have nailed it; BigInteger is immutable. Here's the minor change to make that code work.

BigInteger sum = BigInteger.valueOf(0);
for(int i = 2; i < 5000; i++) {
    if (isPrim(i)) {
        sum = sum.add(BigInteger.valueOf(i));
    }
}

You can use this syntax to add an index and control the kind of index (HASH or BTREE).

create index your_index_name on your_table_name(your_column_name) using HASH;
or
create index your_index_name on your_table_name(your_column_name) using BTREE;

You can learn about differences between BTREE and HASH indexes here: http://dev.mysql.com/doc/refman/5.5/en/index-btree-hash.html

If you need to store a password in memory and would like to have it encrypted you should use SecureString:

http://msdn.microsoft.com/en-us/library/system.security.securestring.aspx

For more general uses I would use a FIPS approved algorithm such as Advanced Encryption Standard, formerly known as Rijndael. See this page for an implementation example:

http://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndael.aspx

None is a singleton, therefore identity comparison will always work, whereas an object can fake the equality comparison via .__eq__().

According to protocol documentation there are at least three options website designers can use to inform sitemap.xml location to search engines:

• Informing each search engine of the location through their provided interface
• Adding url to the robots.txt file
• Submiting url to search engines through http

So, unless they have chosen to publish the sitemap location on their robots.txt file, you cannot really know where they have put their sitemap.xml files.

Inf is infinity, it's a "bigger than all the other numbers" number. Try subtracting anything you want from it, it doesn't get any smaller. All numbers are < Inf. -Inf is similar, but smaller than everything.

NaN means not-a-number. If you try to do a computation that just doesn't make sense, you get NaN. Inf - Inf is one such computation. Usually NaN is used to just mean that some data is missing.

Simply do as below :

button.setOnClickListener{doSomething()}

If you are sorting strings that are mixed text & numbers, for example filenames of rolling logs then sorting with sort -n doesn't work as expected:

$ ls |sort -n
output.log.1
output.log.10
output.log.11
output.log.12
output.log.13
output.log.14
output.log.15
output.log.16
output.log.17
output.log.18
output.log.19
output.log.2
output.log.20
output.log.3
output.log.4
output.log.5
output.log.6
output.log.7
output.log.8
output.log.9

In that case option -V does the trick:

$ ls |sort -V
output.log.1
output.log.2
output.log.3
output.log.4
output.log.5
output.log.6
output.log.7
output.log.8
output.log.9
output.log.10
output.log.11
output.log.12
output.log.13
output.log.14
output.log.15
output.log.16
output.log.17
output.log.18
output.log.19
output.log.20

from man page:

   -V, --version-sort
          natural sort of (version) numbers within text

As per the official installation page of skimage (skimage Installation) : python-skimage package depends on matplotlib, scipy, pil, numpy and six.

So install them first using

sudo apt-get install python-matplotlib python-numpy python-pil python-scipy

Apparently skimage is a part of Cython which in turn is a superset of python and hence you need to install Cython to be able to use skimage.

sudo apt-get install build-essential cython

Now install skimage package using

sudo apt-get install python-skimage

This solved the Import error for me.

Actually something like

function scrollTo(prop){
    $('html,body').animate({scrollTop: $("#"+prop).offset().top +
 parseInt($("#"+prop).css('padding-top'),10) },'slow');
}

will work nicely and support padding. You can also support margins easily - for completion see below

function scrollTo(prop){
    $('html,body').animate({scrollTop: $("#"+prop).offset().top 
+ parseInt($("#"+prop).css('padding-top'),10) 
+ parseInt($("#"+prop).css('margin-top'),10) +},'slow');
}

The presence of argLine configurations in either of surefire and jacoco plugins stops the jacoco report generation. The argLine should be defined in properties

<properties>
  <argLine>your jvm options here</argLine>
</properties>

-exec and -execdir are slow, xargs is king.

$ alias f='time find /Applications -name "*.app" -type d -maxdepth 5'; \
f -exec basename {} \; | wc -l; \
f -execdir echo {} \; | wc -l; \
f -print0 | xargs -0 -n1 basename | wc -l; \
f -print0 | xargs -0 -n1 -P 8 basename | wc -l; \
f -print0 | xargs -0 basename | wc -l

     139
    0m01.17s real     0m00.20s user     0m00.93s system
     139
    0m01.16s real     0m00.20s user     0m00.92s system
     139
    0m01.05s real     0m00.17s user     0m00.85s system
     139
    0m00.93s real     0m00.17s user     0m00.85s system
     139
    0m00.88s real     0m00.12s user     0m00.75s system

xargs's parallelism also helps.

Funnily enough i cannot explain the last case of xargs without -n1. It gives the correct result and it's the fastest ¯\_(?)_/¯

(basename takes only 1 path argument but xargs will send them all (actually 5000) without -n1. does not work on linux and openbsd, only macOS...)

Some bigger numbers from a linux system to see how -execdir helps, but still much slower than a parallel xargs:

$ alias f='time find /usr/ -maxdepth 5 -type d'
$ f -exec basename {} \; | wc -l; \
f -execdir echo {} \; | wc -l; \
f -print0 | xargs -0 -n1 basename | wc -l; \
f -print0 | xargs -0 -n1 -P 8 basename | wc -l

2358
    3.63s real     0.10s user     0.41s system
2358
    1.53s real     0.05s user     0.31s system
2358
    1.30s real     0.03s user     0.21s system
2358
    0.41s real     0.03s user     0.25s system

It looks like for iOS 6, Apple is recommending you use the NSUUID class.

From the message now in the UIDevice docs for uniqueIdentifier property:

Deprecated in iOS 5.0. Use the identifierForVendor property of this class or the advertisingIdentifier property of the ASIdentifierManager class instead, as appropriate, or use the UUID method of the NSUUID class to create a UUID and write it to the user defaults database.

In case you want to pass error strings, here is an example from Errors and Exceptions (Python 2.6)

>>> try:
...    raise Exception('spam', 'eggs')
... except Exception as inst:
...    print type(inst)     # the exception instance
...    print inst.args      # arguments stored in .args
...    print inst           # __str__ allows args to printed directly
...    x, y = inst          # __getitem__ allows args to be unpacked directly
...    print 'x =', x
...    print 'y =', y
...
<type 'exceptions.Exception'>
('spam', 'eggs')
('spam', 'eggs')
x = spam
y = eggs

If you want to generate random numbers in range including '0' , use the following while 'max' is the maximum number in the range.

Random rand = new Random()
random_num = rand.nextInt(max+1)

Bit late to this...I'm surprised that no one mentioned Symfony's VarDumper component that Laravel includes, in part, for its dd() (and lesser-known, dump()) utility functions.

$dumpMe = new App\User([ 'name' => 'Cy Rossignol' ]);

(new Symfony\Component\VarDumper\Dumper\CliDumper())->dump( 
    (new Symfony\Component\VarDumper\Cloner\VarCloner())->cloneVar($dumpMe)
);

There's a bit more code needed, but, in return, we get nice formatted, readable output in the console—especially useful for debugging complex objects or arrays:

App\User {#17
  #attributes: array:1 [
    "name" => "Cy Rossignol"
  ]
  #fillable: array:3 [
    0 => "name"
    1 => "email"
    2 => "password"
  ]
  #guarded: array:1 [
    0 => "*"
  ]
  #primaryKey: "id"
  #casts: []
  #dates: []
  #relations: []
  ... etc ...
}

To take this a step further, we can even colorize the output! Add this helper function to the project to save some typing:

function toConsole($var) 
{
    $dumper = new Symfony\Component\VarDumper\Dumper\CliDumper();
    $dumper->setColors(true);

    $dumper->dump((new Symfony\Component\VarDumper\Cloner\VarCloner())->cloneVar($var));
}

If we're running the app behind a full webserver (like Apache or Nginx—not artisan serve), we can modify this function slightly to send the dumper's prettified output to the log (typically storage/logs/laravel.log):

function toLog($var) 
{
    $lines = [ 'Dump:' ];
    $dumper = new Symfony\Component\VarDumper\Dumper\CliDumper();
    $dumper->setColors(true);
    $dumper->setOutput(function ($line) use (&$lines) { 
        $lines[] = $line;
    });

    $dumper->dump((new Symfony\Component\VarDumper\Cloner\VarCloner())->cloneVar($var));

    Log::debug(implode(PHP_EOL, $lines));
}

...and, of course, watch the log using:

$ tail -f storage/logs/laravel.log

PHP's error_log() works fine for quick, one-off inspection of simple values, but the functions shown above take the hard work out of debugging some of Laravel's more complicated classes.

I just asked the same question here: https://stackoverflow.com/a/23062370/3532136 It has a good solution. I hope it helps ^^. In resume, you can use this:

The Json file in my case was called jsonfile.json:

{
    "CARD_MODEL_TITLE": "OWNER'S MANUAL",
    "CARD_MODEL_SUBTITLE": "Configure your download",
    "CARD_MODEL_SELECT": "Select Model",
    "CARD_LANG_TITLE": "Select Language",
    "CARD_LANG_DEVICE_LANG": "Your device",
    "CARD_YEAR_TITLE": "Select Model Year",
    "CARD_YEAR_LATEST": "(Latest)",
    "STEPS_MODEL": "Model",
    "STEPS_LANGUAGE": "Language",
    "STEPS_YEAR": "Model Year",
    "BUTTON_BACK": "Back",
    "BUTTON_NEXT": "Next",
    "BUTTON_CLOSE": "Close"
}

Code:

$json = (Get-Content "jsonfile.json" -Raw) | ConvertFrom-Json

$json.psobject.properties.name

Output:

CARD_MODEL_TITLE
CARD_MODEL_SUBTITLE
CARD_MODEL_SELECT
CARD_LANG_TITLE
CARD_LANG_DEVICE_LANG
CARD_YEAR_TITLE
CARD_YEAR_LATEST
STEPS_MODEL
STEPS_LANGUAGE
STEPS_YEAR
BUTTON_BACK
BUTTON_NEXT
BUTTON_CLOSE

Thanks to mjolinor.

The solution here is to have different IDs as many of you have stated. The problem still lies deeper in datepicker. Please correct me, but doesn't the datepicker have one wrapper ID - "ui-datepicker-div." This is seen on http://jqueryui.com/demos/datepicker/#option-showOptions in the theming.

Is there an option that can change this ID to be a class? I don't want to have to fork this script just for this one obvious fix!!

Just been doing that myself today... here is code I have working for me...

$data = array("a" => $a);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
curl_setopt($ch, CURLOPT_POSTFIELDS,http_build_query($data));

$response = curl_exec($ch);

if (!$response) 
{
    return false;
}

src: http://www.lornajane.net/posts/2009/putting-data-fields-with-php-curl

Thanks. Opening the URL connection by passing the Proxy as suggested by NickDK works fine.

//Proxy instance, proxy ip = 10.0.0.1 with port 8080
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress("10.0.0.1", 8080));
conn = new URL(urlString).openConnection(proxy);

System properties however doesn't work as I had mentioned earlier.

Thanks again.

Regards, Keya

While you are declaring onclick in XML then you must declair method and pass View v as parameter and make the method public...

Ex:
//in xml
android:onClick="onButtonClicked"


// in java file
public void onButtonClicked(View v)
{
//your code here
}

I was using to many await, so i was not getting response , i converted in to sync call its started working

            using (var client = new HttpClient())
            using (var request = new HttpRequestMessage())
            {
                client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
                request.Method = HttpMethod.Get;
                request.RequestUri = new Uri(URL);
                var response = client.GetAsync(URL).Result;
                response.EnsureSuccessStatusCode();
                string responseBody = response.Content.ReadAsStringAsync().Result;
               

Currently, UUID's are as specified in RFC4122. An often neglected edge case is the NIL UUID, noted here. The following regex takes this into account and will return a match for a NIL UUID. See below for a UUID which only accepts non-NIL UUIDs. Both of these solutions are for versions 1 to 5 (see the first character of the third block).

Therefore to validate a UUID...

/^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i

...ensures you have a canonically formatted UUID that is Version 1 through 5 and is the appropriate Variant as per RFC4122.

NOTE: Braces { and } are not canonical. They are an artifact of some systems and usages.

Easy to modify the above regex to meet the requirements of the original question.

HINT: regex group/captures

To avoid matching NIL UUID:

/^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i

dynamic_cast should be what you are looking for.

EDIT:

DerivedType m_derivedType = m_baseType; // gives same error

The above appears to be trying to invoke the assignment operator, which is probably not defined on type DerivedType and accepting a type of BaseType.

DerivedType * m_derivedType = (DerivedType*) & m_baseType; // gives same error

You are on the right path here but the usage of the dynamic_cast will attempt to safely cast to the supplied type and if it fails, a NULL will be returned.

Going on memory here, try this (but note the cast will return NULL as you are casting from a base type to a derived type):

DerivedType * m_derivedType = dynamic_cast<DerivedType*>(&m_baseType);

If m_baseType was a pointer and actually pointed to a type of DerivedType, then the dynamic_cast should work.

Hope this helps!

According to SQL2000 help, sp_spaceused includes data and indexes.

This script should do:

CREATE TABLE #t (name SYSNAME, rows CHAR(11), reserved VARCHAR(18), 
data VARCHAR(18), index_size VARCHAR(18), unused VARCHAR(18))

EXEC sp_msforeachtable 'INSERT INTO #t EXEC sp_spaceused ''?'''
-- SELECT * FROM #t ORDER BY name
-- SELECT name, CONVERT(INT, SUBSTRING(data, 1, LEN(data)-3)) FROM #t ORDER BY name
SELECT SUM(CONVERT(INT, SUBSTRING(data, 1, LEN(data)-3))) FROM #t
DROP TABLE #t

You can use sp page context info:

_spPageContextOnfo.userLoginName

os.path.realpath(__file__) will give you the path of the current file, resolving any symlinks in the path. This works fine on my mac.

This is an old question and I don't quite understand the business need of listening for route changes to push a route change; seems roundabout.

BUT if you ended up here because all you wanted was to update the 'page_path' on a react-router route change for google analytics / global site tag / something similar, here's a hook you can now use. I wrote it based on the accepted answer:

useTracking.js

import { useEffect } from 'react'
import { useHistory } from 'react-router-dom'

export const useTracking = (trackingId) => {
  const { listen } = useHistory()

  useEffect(() => {
    const unlisten = listen((location) => {
      // if you pasted the google snippet on your index.html
      // you've declared this function in the global
      if (!window.gtag) return

      window.gtag('config', trackingId, { page_path: location.pathname })
    })

    // remember, hooks that add listeners
    // should have cleanup to remove them
    return unlisten
  }, [trackingId, listen])
}

You should use this hook once in your app, somewhere near the top but still inside a router. I have it on an App.js that looks like this:

App.js

import * as React from 'react'
import { BrowserRouter, Route, Switch } from 'react-router-dom'

import Home from './Home/Home'
import About from './About/About'
// this is the file above
import { useTracking } from './useTracking'

export const App = () => {
  useTracking('UA-USE-YOURS-HERE')

  return (
    <Switch>
      <Route path="/about">
        <About />
      </Route>
      <Route path="/">
        <Home />
      </Route>
    </Switch>
  )
}

// I find it handy to have a named export of the App
// and then the default export which wraps it with
// all the providers I need.
// Mostly for testing purposes, but in this case,
// it allows us to use the hook above,
// since you may only use it when inside a Router
export default () => (
  <BrowserRouter>
    <App />
  </BrowserRouter>
)

If you follow a database-first approach, you aggregate root is usually the table on the 1 side of a 1-many relationship.

The most common example being a Person. Each person has many addresses, one or more pay slips, invoices, CRM entries, etc. It's not always the case, but 9/10 times it is.

We're currently working on an e-commerce platform, and we basically have two aggregate roots:

1. Customers
2. Sellers

Customers supply contact info, we assign transactions to them, transactions get line items, etc.

Sellers sell products, have contact people, about us pages, special offers, etc.

These are taken care of by the Customer and Seller repository respectively.

Install from the "Unofficial Windows Binaries for Python Extension Packages"

http://www.lfd.uci.edu/~gohlke/pythonlibs/#python-dateutil

Pretty much has every package you would need.

You can try to re-set your Jenkins security:

1. Stop the Jenkins service
2. Open the config.xml with a text editor (i.e notepad++), maybe be in C:\jenkins\config.xml (could backup it also).
3. Find this <useSecurity>true</useSecurity> and change it to <useSecurity>false</useSecurity>
4. Start Jenkins service

You might create an admin user and enable security again.

In the nano editor

Ctrl+_

On openning a file

nano +10 file.txt

Delete bin and obj folders in all projects of that solution.

Seems like those folders were having old files generated by some older version of visual studio, which are not compatible with new version of visual studio.

I got this error when I restored a database and didn't add the user account and privileges back in. Another site gave me an authentication error, so I didn't think to check that, but as soon as I added the user account back everything worked again!

I found the following command to run from command line:

vlc.exe --extraintf=http:logger --verbose=2 --file-logging --logfile=vlc-log.txt

Check out your TNS Names, this must not have spaces at the left side of the ALIAS

Best regards

Run cmd and then run node server.js. In your example, you are trying to use the REPL to run your command, which is not going to work. The ellipsis is node.js expecting more tokens before closing the current scope (you can type code in and run it on the fly here)

I had the same issue with my system, I removed the JavaScript code from the of my page and put it at body just before closing body tag

Inspired from @Hamed, I added the following and it worked for me:

display: inline-block; overflow: hidden; 

You can try this:

 string sql = "UPDATE Customer SET City = @City WHERE CustomerId = @CustomerId";             
 conn.Execute(sql, customerEntity);

#include <stdio.h>
int n = 2;
int main()
{
     switch(n)
     {
          case 0: goto _4;break;
          case 1: goto _4;break;
          case 2: goto _4;break;
          case 3: goto _4;break;
          case 4:
              _4:
                printf("Funny and easy!\n");
                break;
          default:
                printf("Search on StackOverflow!\n");
                break;
     }
}

To get the value of a drop-down (select) element, just use val().

$('._someDropDown').live('change', function(e) {
  alert($(this).val());
});

If you want to the text of the selected option, using this:

$('._someDropDown').live('change', function(e) {
  alert($('[value=' + $(this).val() + ']', this).text());
});

Instead of using a Label class, I would recommend using a TextBlock. This allows you to set the TextWrapping appropriately.

You can always do:

 label1.Content = new TextBlock() { Text = textBox1.Text, TextWrapping = TextWrapping.Wrap };

However, if all this "label" is for is to display text, use a TextBlock instead.

I imagine this forum posting, which I quote fully below, should answer the question.

Inside a procedure, function, or trigger definition, or in a dynamic SQL statement (embedded in a host program):

BEGIN ATOMIC
 DECLARE example VARCHAR(15) ;
 SET example = 'welcome' ;
 SELECT *
 FROM   tablename
 WHERE  column1 = example ;
END

or (in any environment):

WITH t(example) AS (VALUES('welcome'))
SELECT *
FROM   tablename, t
WHERE  column1 = example

or (although this is probably not what you want, since the variable needs to be created just once, but can be used thereafter by everybody although its content will be private on a per-user basis):

CREATE VARIABLE example VARCHAR(15) ;
SET example = 'welcome' ;
SELECT *
FROM   tablename
WHERE  column1 = example ;

I have a Samsung Duos device with Android 4.4.4 and the method suggested by Seetha in the accepted answer (i.e. call getDeviceIdDs) does not work for me, as the method does not exist. I was able to recover all the information I needed by calling method "getDefault(int slotID)", as shown below:

public static void samsungTwoSims(Context context) {
    TelephonyManager telephony = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

    try{

        Class<?> telephonyClass = Class.forName(telephony.getClass().getName());

        Class<?>[] parameter = new Class[1];
        parameter[0] = int.class;
        Method getFirstMethod = telephonyClass.getMethod("getDefault", parameter);

        Log.d(TAG, getFirstMethod.toString());

        Object[] obParameter = new Object[1];
        obParameter[0] = 0;
        TelephonyManager first = (TelephonyManager) getFirstMethod.invoke(null, obParameter);

        Log.d(TAG, "Device Id: " + first.getDeviceId() + ", device status: " + first.getSimState() + ", operator: " + first.getNetworkOperator() + "/" + first.getNetworkOperatorName());

        obParameter[0] = 1;
        TelephonyManager second = (TelephonyManager) getFirstMethod.invoke(null, obParameter);

        Log.d(TAG, "Device Id: " + second.getDeviceId() + ", device status: " + second.getSimState()+ ", operator: " + second.getNetworkOperator() + "/" + second.getNetworkOperatorName());
    } catch (Exception e) {
        e.printStackTrace();
    }   
}

Also, I rewrote the code that iteratively tests for methods to recover this information so that it uses an array of method names instead of a sequence of try/catch. For instance, to determine if we have two active SIMs we could do:

private static String[] simStatusMethodNames = {"getSimStateGemini", "getSimState"};


public static boolean hasTwoActiveSims(Context context) {
    boolean first = false, second = false;

    for (String methodName: simStatusMethodNames) {
        // try with sim 0 first
        try {
            first = getSIMStateBySlot(context, methodName, 0);
            // no exception thrown, means method exists
            second = getSIMStateBySlot(context, methodName, 1);
           return first && second;
        } catch (GeminiMethodNotFoundException e) {
            // method does not exist, nothing to do but test the next
        }
    }
    return false;
}

This way, if a new method name is suggested for some device, you can simply add it to the array and it should work.

You can add a source folder to the build script and then sync. Look for sourceSets in the documentation here: http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Basic-Project

I haven't found a good way of adding test source folders. I have manually added the source to the .iml file. Of course this means it will go away everytime the build script is synched.

While reading the TCP UDP debate I noticed a logical flaw. A TCP packet loss causing a one minute delay that's converted into a one minute buffer cant be correlated to UDP dropping a full minute while experiencing the same loss. A more fair comparison is as follows.

TCP experiences a packet loss. The video is stopped while TCP resend's packets in an attempt to stream mathematically perfect packets. Video is delayed for one minute and picks up where it left off after missing packet makes its destination. We all wait but we know we wont miss a single pixel.

UDP experiences a packet loss. For a second during the video stream a corner of the screen gets a little blurry. No one notices and the show goes on without looking for the lost packets.

Anything that streams gains the most benefits from UDP. The packet loss causing a one minute delay to TCP would not cause a one minute delay to UDP. Considering that most systems use multiple resolution streams making things go blocky when starving for packets, makes even more sense to use UDP.

UDP FTW when streaming.

Short answer is : to prevent pollution of the Global (or higher) scope.

IIFE (Immediately Invoked Function Expressions) is the best practice for writing scripts as plug-ins, add-ons, user scripts or whatever scripts are expected to work with other people's scripts. This ensures that any variable you define does not give undesired effects on other scripts.

This is the other way to write IIFE expression. I personally prefer this following method:

void function() {
  console.log('boo!');
  // expected output: "boo!"
}();

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/void

From the example above it is very clear that IIFE can also affect efficiency and performance, because the function that is expected to be run only once will be executed once and then dumped into the void for good. This means that function or method declaration does not remain in memory.

I look for natural primary keys and use them where I can.

If no natural keys can be found, I prefer a GUID to a INT++ because SQL Server use trees, and it is bad to always add keys to the end in trees.

On tables that are many-to-many couplings I use a compound primary key of the foreign keys.

Because I'm lucky enough to use SQL Server I can study execution plans and statistics with the profiler and the query analyzer and find out how my keys are performing very easily.

error: package android.support.v4.content does not exist import android.support.v4.content.FileProvider;

using jetify helped to solve .

from jcesarmobile' s post --- >https://github.com/ionic-team/capacitor/pull/2832

Error: "package android.support.* does not exist" This error occurs when some Cordova or Capacitor plugin has old android support dependencies instead of using the new AndroidX equivalent. You should report the issue in the plugin repository so the maintainers can update the plugin to use AndroidX dependencies.

As workaround you can also patch the plugin using jetifier

npm install jetifier

npx jetify

npx cap sync android

Run vmware as administrator in windows or as root in linux. Then ctrl+P to open preferences. then on shared vms. You can see a port number 443 by default. This is conflicting with apache that is why it is not starting. Change it to some other value say 8443. Then try to start apache it will run.

#Reading the Host,username,password,port from excel file
import paramiko 
import xlrd

ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())

loc = ('/Users/harshgow/Documents/PYTHON_WORK/labcred.xlsx')
wo = xlrd.open_workbook(loc)
sheet = wo.sheet_by_index(0)
Host = sheet.cell_value(0,1)
Port = int(sheet.cell_value(3,1))
User = sheet.cell_value(1,1)
Pass = sheet.cell_value(2,1)

def details(Host,Port,User,Pass):
    ssh.connect(Host, Port, User, Pass)
    print('connected to ip ',Host)
    stdin, stdout, stderr = ssh.exec_command("")
    stdin.write('xcommand SystemUnit Boot Action: Restart\n')
    print('success')

details(Host,Port,User,Pass)

What about something like:

Alter Table Products
Add LastUpdate varchar(200) null

Do you need something more complex than this?

Explicitly creating an out folder and then setting the output path to C:\Users\USERNAME\IdeaProjects\PROJECTNAME\out

seemed to work for me when just out, and expecting IntelliJ to make the folder wouldn't.

Also try having IntelliJ make you a new run configuration:

Find the previous one by clicking

then remove it

and hit okay.

Now, (IMPORTANT STEP) open the class containing your main method. This is probably easiest done by clicking on the class name in the left-hand side Project Pane.

Give 'er a Alt + Shift + F10 and you should get a

Now hit Enter!!

Tadah?? (Did it work?)

Apart from custom class or .Net 4.0 Tuples, since C# 7.0 there is a new feature called ValueTuple, which is a struct that can be used in this case. Instead of writing:

Tuple<string, int> t = new Tuple<string, int>("Hello", 4);

and access values through t.Item1 and t.Item2, you can simply do it like that:

(string message, int count) = ("Hello", 4);

or even:

(var message, var count) = ("Hello", 4);

For me, the only working solution was to simply add this in file ~/.ssh/config:

Host *
  IdentityFile ~/.ssh/your_ssh_key
  IdentityFile ~/.ssh/your_ssh_key2
  IdentityFile ~/.ssh/your_ssh_key3
  AddKeysToAgent yes

your_ssh_key is without any extension. Don't use .pub.

This happened to me when my SourceTree application crashed during staging. And on the command line, it seemed like the previous git add had been corrupted. If this is the case, try:

git init
git add -A
git commit -m 'Fix bad repo'
git push

On the last command, you might need to set the branch.

git push --all origin master

Bear in mind that this is enough if you haven't done any branching or any of that sort. In that case, make sure you push to the correct branch like git push origin develop.

Partridge and Gareths comments above are great. They deserve a separate answer. Apparently, hash and search properties are available on any html Link object:

<a id="test" href="foo.html?bar#quz">test</a>
<script type="text/javascript">
   alert(document.getElementById('test').search); //bar
   alert(document.getElementById('test').hash); //quz
</script>

Or

<a href="bar.html?foo" onclick="alert(this.search)">SAY FOO</a>

Should you need this on a regular string variable and happen to have jQuery around, this should work:

var mylink = "foo.html?bar#quz";

if ($('<a href="'+mylink+'">').get(0).search=='bar')) {
    // do stuff
}

(but its maybe a bit overdone .. )

This answer may have to be modified depending on what you were trying to achieve with position: fixed;. If all you want is two columns side by side then do the following:

http://jsfiddle.net/8weSA/1/

I floated both columns to the left.

Note: I added min-height to each column for illustrative purposes and I simplified your CSS.

body {_x000D_
  background-color: #444;_x000D_
  margin: 0;_x000D_
}_x000D_
_x000D_
#wrapper {_x000D_
  width: 1005px;_x000D_
  margin: 0 auto;_x000D_
}_x000D_
_x000D_
#leftcolumn,_x000D_
#rightcolumn {_x000D_
  border: 1px solid white;_x000D_
  float: left;_x000D_
  min-height: 450px;_x000D_
  color: white;_x000D_
}_x000D_
_x000D_
#leftcolumn {_x000D_
  width: 250px;_x000D_
  background-color: #111;_x000D_
}_x000D_
_x000D_
#rightcolumn {_x000D_
  width: 750px;_x000D_
  background-color: #777;_x000D_
}

<div id="wrapper">_x000D_
  <div id="leftcolumn">_x000D_
    Left_x000D_
  </div>_x000D_
  <div id="rightcolumn">_x000D_
    Right_x000D_
  </div>_x000D_
</div>

If you would like the left column to stay in place as you scroll do the following:

http://jsfiddle.net/8weSA/2/

Here we float the right column to the right while adding position: relative; to #wrapper and position: fixed; to #leftcolumn.

Note: I again used min-height for illustrative purposes and can be removed for your needs.

body {_x000D_
  background-color: #444;_x000D_
  margin: 0;_x000D_
}_x000D_
_x000D_
#wrapper {_x000D_
  width: 1005px;_x000D_
  margin: 0 auto;_x000D_
  position: relative;_x000D_
}_x000D_
_x000D_
#leftcolumn,_x000D_
#rightcolumn {_x000D_
  border: 1px solid white;_x000D_
  min-height: 750px;_x000D_
  color: white;_x000D_
}_x000D_
_x000D_
#leftcolumn {_x000D_
  width: 250px;_x000D_
  background-color: #111;_x000D_
  min-height: 100px;_x000D_
  position: fixed;_x000D_
}_x000D_
_x000D_
#rightcolumn {_x000D_
  width: 750px;_x000D_
  background-color: #777;_x000D_
  float: right;_x000D_
}

<div id="wrapper">_x000D_
  <div id="leftcolumn">_x000D_
    Left_x000D_
  </div>_x000D_
  <div id="rightcolumn">_x000D_
    Right_x000D_
  </div>_x000D_
</div>

Also worth mentioning -- if you were forced to use an older Java version prior to 1.5, and you are trying to use Collections, you won't be able to parameterize the collection with a type such as Double.

You'll have to manually "box" to the class Double when adding new items, and "unbox" to the primitive double by parsing and casting, doing something like this:

LinkedList lameOldList = new LinkedList();
lameOldList.add( new Double(1.2) );
lameOldList.add( new Double(3.4) );
lameOldList.add( new Double(5.6) );

double total = 0.0;
for (int i = 0, len = lameOldList.size(); i < len; i++) {
  total += Double.valueOf( (Double)lameOldList.get(i) );
}

The old-school list will contain only type Object and so has to be cast to Double.

Also, you won't be able to iterate through the list with an enhanced-for-loop in early Java versions -- only with a for-loop.

result() returns Object type data. . . . result_array() returns Associative Array type data.

For CentOS 5/6 this is what worked for me

yum remove ImageMagick
yum install tcl-devel libpng-devel libjpeg-devel ghostscript-devel bzip2-devel freetype-devel libtiff-devel
mkdir /root/imagemagick
cd /root/imagemagick
wget ftp://ftp.imagemagick.org/pub/ImageMagick/ImageMagick.tar.gz
tar xzvf ImageMagick.tar.gz
cd ImageMagick-*
./configure --prefix=/usr/ --with-bzlib=yes --with-fontconfig=yes --with-freetype=yes --with-gslib=yes --with-gvc=yes --with-jpeg=yes --with-jp2=yes --with-png=yes --with-tiff=yes
make
make install

For 64 bit do this

cd /usr/lib64
ln -s ../lib/libMagickCore.so.3 libMagickCore.so.3 
ln -s ../lib/libMagickWand.so.3 libMagickWand.so.3

Add the missing dependencies

yum install ImageMagick-devel

Then finally rmagick

gem install rmagick

If you need to start fresh remove other installs first with

cd /root/imagemagick/ImageMagick-*
make uninstall

Why are there extra spaces between my month and day? Why does't it just put them next to each other?

So your output will be aligned.

If you don't want padding use the format modifier FM:

SELECT TO_CHAR (date_field, 'fmMonth DD, YYYY') 
  FROM ...;

Reference: Format Model Modifiers

While developing the ios app i too face similar kind of issue. Simple Restart of the xcode works for me. Hope this will help some one.

In C++11, the using keyword when used for type alias is identical to typedef.

7.1.3.2

A typedef-name can also be introduced by an alias-declaration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. It has the same semantics as if it were introduced by the typedef specifier. In particular, it does not define a new type and it shall not appear in the type-id.

Bjarne Stroustrup provides a practical example:

typedef void (*PFD)(double);    // C style typedef to make `PFD` a pointer to a function returning void and accepting double
using PF = void (*)(double);    // `using`-based equivalent of the typedef above
using P = [](double)->void; // using plus suffix return type, syntax error
using P = auto(double)->void // Fixed thanks to DyP

Pre-C++11, the using keyword can bring member functions into scope. In C++11, you can now do this for constructors (another Bjarne Stroustrup example):

class Derived : public Base { 
public: 
    using Base::f;    // lift Base's f into Derived's scope -- works in C++98
    void f(char);     // provide a new f 
    void f(int);      // prefer this f to Base::f(int) 

    using Base::Base; // lift Base constructors Derived's scope -- C++11 only
    Derived(char);    // provide a new constructor 
    Derived(int);     // prefer this constructor to Base::Base(int) 
    // ...
}; 

Ben Voight provides a pretty good reason behind the rationale of not introducing a new keyword or new syntax. The standard wants to avoid breaking old code as much as possible. This is why in proposal documents you will see sections like Impact on the Standard, Design decisions, and how they might affect older code. There are situations when a proposal seems like a really good idea but might not have traction because it would be too difficult to implement, too confusing, or would contradict old code.

Here is an old paper from 2003 n1449. The rationale seems to be related to templates. Warning: there may be typos due to copying over from PDF.

First let’s consider a toy example:

template <typename T>
class MyAlloc {/*...*/};

template <typename T, class A>
class MyVector {/*...*/};

template <typename T>

struct Vec {
typedef MyVector<T, MyAlloc<T> > type;
};
Vec<int>::type p; // sample usage

The fundamental problem with this idiom, and the main motivating fact for this proposal, is that the idiom causes the template parameters to appear in non-deducible context. That is, it will not be possible to call the function foo below without explicitly specifying template arguments.

template <typename T> void foo (Vec<T>::type&);

So, the syntax is somewhat ugly. We would rather avoid the nested ::type We’d prefer something like the following:

template <typename T>
using Vec = MyVector<T, MyAlloc<T> >; //defined in section 2 below
Vec<int> p; // sample usage

Note that we specifically avoid the term “typedef template” and introduce the new syntax involving the pair “using” and “=” to help avoid confusion: we are not defining any types here, we are introducing a synonym (i.e. alias) for an abstraction of a type-id (i.e. type expression) involving template parameters. If the template parameters are used in deducible contexts in the type expression then whenever the template alias is used to form a template-id, the values of the corresponding template parameters can be deduced – more on this will follow. In any case, it is now possible to write generic functions which operate on Vec<T> in deducible context, and the syntax is improved as well. For example we could rewrite foo as:

template <typename T> void foo (Vec<T>&);

We underscore here that one of the primary reasons for proposing template aliases was so that argument deduction and the call to foo(p) will succeed.

The follow-up paper n1489 explains why using instead of using typedef:

It has been suggested to (re)use the keyword typedef — as done in the paper [4] — to introduce template aliases:

template<class T> 
    typedef std::vector<T, MyAllocator<T> > Vec;

That notation has the advantage of using a keyword already known to introduce a type alias. However, it also displays several disavantages among which the confusion of using a keyword known to introduce an alias for a type-name in a context where the alias does not designate a type, but a template; Vec is not an alias for a type, and should not be taken for a typedef-name. The name Vec is a name for the family std::vector< [bullet] , MyAllocator< [bullet] > > – where the bullet is a placeholder for a type-name. Consequently we do not propose the “typedef” syntax. On the other hand the sentence

template<class T>
    using Vec = std::vector<T, MyAllocator<T> >;

can be read/interpreted as: from now on, I’ll be using Vec<T> as a synonym for std::vector<T, MyAllocator<T> >. With that reading, the new syntax for aliasing seems reasonably logical.

I think the important distinction is made here, aliases instead of types. Another quote from the same document:

An alias-declaration is a declaration, and not a definition. An alias- declaration introduces a name into a declarative region as an alias for the type designated by the right-hand-side of the declaration. The core of this proposal concerns itself with type name aliases, but the notation can obviously be generalized to provide alternate spellings of namespace-aliasing or naming set of overloaded functions (see ? 2.3 for further discussion). [My note: That section discusses what that syntax can look like and reasons why it isn't part of the proposal.] It may be noted that the grammar production alias-declaration is acceptable anywhere a typedef declaration or a namespace-alias-definition is acceptable.

Summary, for the role of using:

• template aliases (or template typedefs, the former is preferred namewise)
• namespace aliases (i.e., namespace PO = boost::program_options and using PO = ... equivalent)
• the document says A typedef declaration can be viewed as a special case of non-template alias-declaration. It's an aesthetic change, and is considered identical in this case.
• bringing something into scope (for example, namespace std into the global scope), member functions, inheriting constructors

It cannot be used for:

int i;
using r = i; // compile-error

Instead do:

using r = decltype(i);

Naming a set of overloads.

// bring cos into scope
using std::cos;

// invalid syntax
using std::cos(double);

// not allowed, instead use Bjarne Stroustrup function pointer alias example
using test = std::cos(double);

    String u = request.getParameter("username");
    String p = request.getParameter("password");

    try {
        st = con.createStatement();
        String sql;
        sql = "SELECT * FROM TableName where USERNAME = '" + u + "' and PASSWORD = '"
                + p + "'";
        ResultSet rs = st.executeQuery(sql);
        if (rs.next()) {
            RequestDispatcher requestDispatcher = request
                    .getRequestDispatcher("/home.jsp");
            requestDispatcher.forward(request, response);
        } else {

            RequestDispatcher requestDispatcher = request
                    .getRequestDispatcher("/invalidLogin.jsp");
            requestDispatcher.forward(request, response);

        }

    } catch (Exception e) {
        e.printStackTrace();
    }
    finally{
        try {
            rs.close();
            ps.close();
            con.close();
            st.close();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

From Official java website...

JRE (Java Runtime environment):

• It is an implementation of the Java Virtual Machine* which actually executes Java programs.
• Java Runtime Environment is a plug-in needed for running java programs.
• The JRE is smaller than the JDK so it needs less Disk space.
• The JRE can be downloaded/supported freely from https://www.java.com
• It includes the JVM , Core libraries and other additional components to run applications and applets written in Java.

JDK (Java Development Kit)

• It is a bundle of software that you can use to develop Java based applications.
• Java Development Kit is needed for developing java applications.
• The JDK needs more Disk space as it contains the JRE along with various development tools.
• The JDK can be downloaded/supported freely from https://www.oracle.com/technetwork/java/javase/downloads/
• It includes the JRE, set of API classes, Java compiler, Webstart and additional files needed to write Java applets and applications.

I use TortoiseMerge, which is included in TortoiseSVN program

And we have talked about File Diff tools in this thread, not dedicated to XML though

https://stackoverflow.com/questions/1830962/file-differencing-software-on-windows

After messing around with this garbage. I've found a way to download my sweet file by using chrome - developer tools.

1. At your google docs tab, Ctr+Shift+J (Setting --> Developer tools)
2. Switch to Network tabs
3. At your docs file, click "Download" --> Download as CSV, xlsx,....

4. It will show you the request in the "Network" console

5. Right click -> Copy -> Copy as Curl

6. Your Curl command will be like this, and add -o to create a exported file. curl 'https://docs.google.com/spreadsheets/d/1Cjsryejgn29BDiInOrGZWvg/export?format=xlsx&id=1Cjsryejgn29BDiInOrGZWvg' -H 'authority: docs.google.com' -H 'upgrade-insecure-requests: 1' -H 'user-agent: Mozilla/5.0 (X..... -o server.xlsx

Solved!

Here is the list of classes and functions:

open System
open System.Collections.Generic
open System.Linq
open System.Threading.Tasks
open Microsoft.AspNetCore.Mvc
open Microsoft.Extensions.Logging
open Microsoft.AspNetCore.Authorization
open Microsoft.AspNetCore.Authentication
open Microsoft.AspNetCore.Authentication.JwtBearer
open Microsoft.IdentityModel.Tokens
open System.IdentityModel.Tokens
open System.IdentityModel.Tokens.Jwt
open Microsoft.IdentityModel.JsonWebTokens
open System.Text
open Newtonsoft.Json
open System.Security.Claims
    let theKey = "VerySecretKeyVerySecretKeyVerySecretKey"
    let securityKey = SymmetricSecurityKey(Encoding.UTF8.GetBytes(theKey))
    let credentials = SigningCredentials(securityKey, SecurityAlgorithms.RsaSsaPssSha256)
    let expires = DateTime.UtcNow.AddMinutes(123.0) |> Nullable
    let token = JwtSecurityToken(
                    "lahoda-pro-issuer", 
                    "lahoda-pro-audience",
                    claims = null,
                    expires =  expires,
                    signingCredentials = credentials
        )

    let tokenString = JwtSecurityTokenHandler().WriteToken(token)

System.Text.ASCIIEncoding.Unicode.GetByteCount(yourString);

Or

System.Text.ASCIIEncoding.ASCII.GetByteCount(yourString);

or MVC 2.0:

<%= Html.RadioButtonFor(model => model.blah, true) %> Yes
<%= Html.RadioButtonFor(model => model.blah, false) %> No

Using the visibility property only affects the visibility of the elements on the page; they will still be there in the page layout. To completely remove the elements from the page, use the display property.

display:none // for hiding
display:block // for showing

Make sure to change your css file to use display instead of visibility too.

As for the javascript (this is not jQuery), make sure you hide the options by default when the page loads:

<script type="text/javascript">
    window.onload = function() {
        document.getElementById('ifYes').style.display = 'none';
    }

    function yesnoCheck() {
        if (document.getElementById('yesCheck').checked) {
            document.getElementById('ifYes').style.display = 'block';
        } 
        else {
            document.getElementById('ifYes').style.display = 'none';
        }
    }

</script>

If you haven't done so already, I would recommend taking a look at jQuery. jQuery code is much clearer and easier to write and understand.

http://www.w3schools.com/jquery/default.asp

Your query ($myQuery) is failing and therefore not producing a query resource, but instead producing FALSE.

To reveal what your dynamically generated query looks like and reveal the errors, try this:

$result2 = mysql_query($myQuery) or die($myQuery."<br/><br/>".mysql_error());

The error message will guide you to the solution, which from your comment below is related to using ORDER BY on a field that doesn't exist in the table you're SELECTing from.

Here are a couple possible solutions...

I have not tried all of these myself yet, but I will be trying them all soon.

Note: I do not have any personal or financial connection to any of these tools.

1) VB Script to EXE Converter (NOT Compiler): (Free)
vbs2exe.com.

The exe produced appears to be a true EXE.

From their website:

VBS to EXE is a free online converter that doesn't only convert your vbs files into exe but it also:

1- Encrypt your vbs file source code using 128 bit key.
2- Allows you to call win32 API
3- If you have troubles with windows vista especially when UAC is enabled then you may give VBS to EXE a try.
4- No need for wscript.exe to run your vbs anymore.
5- Your script is never saved to the hard disk like some others converters. it is a TRUE exe not an extractor.

This solution should work even if wscript/cscript is not installed on the computer.

Basically, this creates a true .EXE file. Inside the created .EXE is an "engine" that replaces wscript/cscript, and an encrypted copy of your VB Script code. This replacement engine executes your code IN MEMORY without calling wscript/cscript to do it.

2) Compile and Convert VBS to EXE...:
ExeScript

The current version is 3.5.

This is NOT a Free solution. They have a 15 day trial. After that, you need to buy a license for a hefty $44.96 (Home License/noncommercial), or $89.95 (Business License/commercial usage).

It seems to work in a similar way to the previous solution.

According to a forum post there:
Post: "A Exe file still need Windows Scripting Host (WSH) ??"

WSH is not required if "Compile" option was used, since ExeScript
implements it's own scripting host. ...

3) Encrypt the script with Microsoft's ".vbs to .vbe" encryption tool.

Apparently, this does not work for Windows 7/8, and it is possible there are ways to "decrypt" the .vbe file. At the time of writing this, I could not find a working link to download this. If I find one, I will add it to this answer.

Have you tried to access your page by typing "http://localhost:8012" (after restarting the apache)?

To delete also views add 'view' keyword:

delete from sqlite_master where type in ('view', 'table', 'index', 'trigger');

java.util.Calendar

// today    
Calendar date = new GregorianCalendar();
// reset hour, minutes, seconds and millis
date.set(Calendar.HOUR_OF_DAY, 0);
date.set(Calendar.MINUTE, 0);
date.set(Calendar.SECOND, 0);
date.set(Calendar.MILLISECOND, 0);

// next day
date.add(Calendar.DAY_OF_MONTH, 1);

JDK 8 - java.time.LocalTime and java.time.LocalDate

LocalTime midnight = LocalTime.MIDNIGHT;
LocalDate today = LocalDate.now(ZoneId.of("Europe/Berlin"));
LocalDateTime todayMidnight = LocalDateTime.of(today, midnight);
LocalDateTime tomorrowMidnight = todayMidnight.plusDays(1);

Joda-Time

If you're using a JDK < 8, I recommend Joda Time, because the API is really nice:

DateTime date = new DateTime().toDateMidnight().toDateTime();
DateTime tomorrow = date.plusDays(1);

Since version 2.3 of Joda Time DateMidnight is deprecated, so use this:

DateTime today = new DateTime().withTimeAtStartOfDay();
DateTime tomorrow = today.plusDays(1).withTimeAtStartOfDay();

Pass a time zone if you don't want the JVM’s current default time zone.

DateTimeZone timeZone = DateTimeZone.forID("America/Montreal");
DateTime today = new DateTime(timeZone).withTimeAtStartOfDay(); // Pass time zone to constructor.

Colin's example for me clashed with the like button. So I adapted it to only target the Like Box.

.fb-like-box, .fb-like-box span, .fb-like-box span iframe[style] { width: 100% !important; }

Tested in most modern browsers.

This little VBScript from technet does the trick:

Const HIDDEN_WINDOW = 12

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
Set objStartup = objWMIService.Get("Win32_ProcessStartup")

Set objConfig = objStartup.SpawnInstance_
objConfig.ShowWindow = HIDDEN_WINDOW
Set objProcess = GetObject("winmgmts:root\cimv2:Win32_Process")
errReturn = objProcess.Create("mybatch.bat", null, objConfig, intProcessID)

Edit mybatch.bat to your bat file name, save as a vbs, run it.

Doc says it's not tested in Win7, but I just tested it, it works fine. Won't show any window for whatever process you run

int a = 1;
char b = (char) a;
System.out.println(b);

will print out the char with Unicode code point 1 (start-of-heading char, which isn't printable; see this table: C0 Controls and Basic Latin, same as ASCII)

int a = '1';
char b = (char) a;
System.out.println(b);

will print out the char with Unicode code point 49 (one corresponding to '1')

If you want to convert a digit (0-9), you can add 48 to it and cast, or something like Character.forDigit(a, 10);.

If you want to convert an int seen as a Unicode code point, you can use Character.toChars(48) for example.

Gentil Kiwi's answer is correct. He developed this mimikatz tool that is able to retrieve non-exportable private keys.

However, his instructions are outdated. You need:

1. Download the lastest release from https://github.com/gentilkiwi/mimikatz/releases

2. Run the cmd with admin rights in the same machine where the certificate was requested

3. Change to the mimikatz bin directory (Win32 or x64 version)

4. Run mimikatz

5. Follow the wiki instructions and the .pfx file (protected with password mimikatz) will be placed in the same folder of the mimikatz bin

mimikatz # crypto::capi
Local CryptoAPI patched

mimikatz # privilege::debug
Privilege '20' OK

mimikatz # crypto::cng
"KeyIso" service patched

mimikatz # crypto::certificates /systemstore:local_machine /store:my /export
* System Store : 'local_machine' (0x00020000)
* Store : 'my'

1. example.domain.local
        Key Container : example.domain.local
        Provider : Microsoft Software Key Storage Provider
        Type : CNG Key (0xffffffff)
        Exportable key : NO
        Key size : 2048
        Public export : OK - 'local_machine_my_0_example.domain.local.der'
        Private export : OK - 'local_machine_my_0_example.domain.local.pfx'

With Apache Commons Lang 3.5 and above: NumberUtils.isCreatable or StringUtils.isNumeric.

With Apache Commons Lang 3.4 and below: NumberUtils.isNumber or StringUtils.isNumeric.

You can also use StringUtils.isNumericSpace which returns true for empty strings and ignores internal spaces in the string. Another way is to use NumberUtils.isParsable which basically checks the number is parsable according to Java. (The linked javadocs contain detailed examples for each method.)

   public static class StringEx
    {
        public static bool Contains(this String str, string[] Arr, StringComparison comp)
        {
            if (Arr != null)
            {
                foreach (string s in Arr)
                {
                    if (str.IndexOf(s, comp)>=0)
                    { return true; }
                }
            }

            return false;
        }

        public static bool Contains(this String str,string[] Arr)
        {
            if (Arr != null)
            {
                foreach (string s in Arr)
                {
                    if (str.Contains(s))
                    { return true; }
                }
            }

            return false;
        }
    }


var portCode = Database.DischargePorts
                   .Single(p => p.PortName.Contains( new string[] {"BALTIMORE"},  StringComparison.CurrentCultureIgnoreCase) ))
                   .PortCode;

Try using in like this:

>>> x = 'hello'
>>> y = 'll'
>>> y in x
True

You start looking near that code that you know ran, and you stop looking when you reach the code you know didn't run.

What you're looking for is probably some place where your program calls a function through a function pointer, but that pointer is null.

It's also possible you have stack corruption. You might have overwritten a function's return address with zero, and the exception occurs at the end of the function. Check for possible buffer overflows, and if you are calling any DLL functions, make sure you used the right calling convention and parameter count.

This isn't an ordinary case of using a null pointer, like an unassigned object reference or PChar. In those cases, you'll have a non-zero "at address x" value. Since the instruction occurred at address zero, you know the CPU's instruction pointer was not pointing at any valid instruction. That's why the debugger can't show you which line of code caused the problem — there is no line of code. You need to find it by finding the code that lead up to the place where the CPU jumped to the invalid address.

The call stack might still be intact, which should at least get you pretty close to your goal. If you have stack corruption, though, you might not be able to trust the call stack.

I wanted to comment on @Ahtenus answer, specifically on Ray Hulha comment saying the codepen does not show any arc, but my reputation is not high enough.

The reason for this codepen not working is that its html is faulty with a stroke-width of zero.

I fixed it and added a second example here : http://codepen.io/AnotherLinuxUser/pen/QEJmkN.

The html :

<svg>
    <path id="theSvgArc"/>
    <path id="theSvgArc2"/>
</svg>

The relevant CSS :

svg {
    width  : 500px;
    height : 500px;
}

path {
    stroke-width : 5;
    stroke       : lime;
    fill         : #151515;
}

The javascript :

document.getElementById("theSvgArc").setAttribute("d", describeArc(150, 150, 100, 0, 180));
document.getElementById("theSvgArc2").setAttribute("d", describeArc(300, 150, 100, 45, 190));

I know this is an old question, but it hasn't been correctly addressed, so I'm answering it for others who may run into this problem.

By default Oracle's ODP.net binds variables by position, and treats each position as a new variable.

Treating each copy as a different variable and setting it's value multiple times is a workaround and a pain, as furman87 mentioned, and could lead to bugs, if you are trying to rewrite the query and move things around.

The correct way is to set the BindByName property of OracleCommand to true as below:

var cmd = new OracleCommand(cmdtxt, conn);
cmd.BindByName = true;

You could also create a new class to encapsulate OracleCommand setting the BindByName to true on instantiation, so you don't have to set the value each time. This is discussed in this post

I am unable to run Vinayak B's code. Finally i solved this issue by following :

1.Using this

2.Applying AsyncTask.

3.Changing security issue of sender gmail account.(Change to "TURN ON") in this

It is not htop-like, but you could use atop. However, to display disk activity per process, it needs a kernel patch (available from the site). These kernel patches are now obsoleted, only to show per-process network activity an optional module is provided.

You need to define a copy constructor, assignment, operator.

class Test {
   Test(const Test &that); //Copy constructor
   Test& operator= (const Test &rhs); //assignment operator
}

Your copy that is pushed on the queue is pointing to the same memory your original is. When the first is destructed, it deletes the memory. The second destructs and tries to delete the same memory.

In case you are using zsh you can use for example the -E or -i switch:

history -E

If you do a man zshoptions or man zshbuiltins you can find out more information about these switches as well as other info related to history:

Also when listing,
 -d     prints timestamps for each event
 -f     prints full time-date stamps in the US `MM/DD/YY hh:mm' format
 -E     prints full time-date stamps in the European `dd.mm.yyyy hh:mm' format
 -i     prints full time-date stamps in ISO8601 `yyyy-mm-dd hh:mm' format
 -t fmt prints time and date stamps in the given format; fmt is formatted with the strftime function with the zsh extensions  described  for  the  %D{string} prompt format in the section EXPANSION OF PROMPT SEQUENCES in zshmisc(1).  The resulting formatted string must be no more than 256 characters or will not be printed
 -D     prints elapsed times; may be combined with one of the options above

I achieved satisfying results with:

min-height: 100%;
min-width: 100%;

this way you always maintain the aspect ratio.

The complete css for an image that will replace "object-fit: cover;":

width: auto;
height: auto;
min-width: 100%;
min-height: 100%;
position: absolute;
right: 50%;
transform: translate(50%, 0);

When you create table than you can give like follows.

CREATE TABLE categories(
cat_id int not null auto_increment primary key,
cat_name varchar(255) not null,
cat_description text
) ENGINE=InnoDB;


CREATE TABLE products(
   prd_id int not null auto_increment primary key,
   prd_name varchar(355) not null,
   prd_price decimal,
   cat_id int not null,
   FOREIGN KEY fk_cat(cat_id)
   REFERENCES categories(cat_id)
   ON UPDATE CASCADE
   ON DELETE RESTRICT
)ENGINE=InnoDB;

and when after the table create like this

   ALTER table_name
    ADD CONSTRAINT constraint_name
    FOREIGN KEY foreign_key_name(columns)
    REFERENCES parent_table(columns)
    ON DELETE action
    ON UPDATE action;

Following on example for it.

CREATE TABLE vendors(
    vdr_id int not null auto_increment primary key,
    vdr_name varchar(255)
)ENGINE=InnoDB;

ALTER TABLE products 
ADD COLUMN vdr_id int not null AFTER cat_id;

To add a foreign key to the products table, you use the following statement:

ALTER TABLE products
ADD FOREIGN KEY fk_vendor(vdr_id)
REFERENCES vendors(vdr_id)
ON DELETE NO ACTION
ON UPDATE CASCADE;

For drop the key

ALTER TABLE table_name 
DROP FOREIGN KEY constraint_name;

Hope this help to learn FOREIGN keys works

public static void main(String[] args) {
    String test = "something hear - to - find some to or tows";
    System.out.println("1.result: " + contains("- to -( \\w+) som", test, null));
    System.out.println("2.result: " + contains("- to -( \\w+) som", test, 5));
}
static boolean contains(String pattern, String text, Integer fromIndex){
    if(fromIndex != null && fromIndex < text.length())
        return Pattern.compile(pattern).matcher(text).find();

    return Pattern.compile(pattern).matcher(text).find();
}

1.result: true

2.result: true

It appears that the functionality previously present in the react-cookie npm package has been moved to universal-cookie. The relevant example from the universal-cookie repository now is:

import Cookies from 'universal-cookie';
const cookies = new Cookies();
cookies.set('myCat', 'Pacman', { path: '/' });
console.log(cookies.get('myCat')); // Pacman

ReactJs defines the following synthetic events for mouse events:

onClick onContextMenu onDoubleClick onDrag onDragEnd onDragEnter onDragExit
onDragLeave onDragOver onDragStart onDrop onMouseDown onMouseEnter onMouseLeave
onMouseMove onMouseOut onMouseOver onMouseUp

As you can see there is no hover event, because browsers do not define a hover event natively.

You will want to add handlers for onMouseEnter and onMouseLeave for hover behavior.

ReactJS Docs - Events

Use jquery cookie plugin, the link as working today: https://github.com/js-cookie/js-cookie

To clarify, the above example does work, my code in the example did not work for unrelated reasons.

If myvar is false, null or has never been used before (i.e. $scope.myvar or $rootScope.myvar never called), the div will not show. Once any value has been assigned to it, the div will show, except if the value is specifically false.

The following will cause the div to show:

$scope.myvar = "Hello World";

or

$scope.myvar = true;

The following will hide the div:

$scope.myvar = null;

or

$scope.myvar = false;

As Pablo suggests, interface approach is almost always the right thing to do to handle this. To really utilize switch, another alternative is to have a custom enum denoting your type in your classes.

enum ObjectType { A, B, Default }

interface IIdentifiable
{
    ObjectType Type { get; };
}
class A : IIdentifiable
{
    public ObjectType Type { get { return ObjectType.A; } }
}

class B : IIdentifiable
{
    public ObjectType Type { get { return ObjectType.B; } }
}

void Foo(IIdentifiable o)
{
    switch (o.Type)
    {
        case ObjectType.A:
        case ObjectType.B:
        //......
    }
}

This is kind of implemented in BCL too. One example is MemberInfo.MemberTypes, another is GetTypeCode for primitive types, like:

void Foo(object o)
{
    switch (Type.GetTypeCode(o.GetType())) // for IConvertible, just o.GetTypeCode()
    {
        case TypeCode.Int16:
        case TypeCode.Int32:
        //etc ......
    }
}

Like @Gabi Purcaru mentions above, the proper way to rename and move the file is to use move_uploaded_file(). It performs some safety checks to prevent security vulnerabilities and other exploits. You'll need to sanitize the value of $_FILES['file']['name'] if you want to use it or an extension derived from it. Use pathinfo($_FILES['file']['name'], PATHINFO_EXTENSION) to safely get the extension.

Since January 7th, 2019, it is possible: unlimited free private repositories on GitHub!
... But for up to three collaborators per private repository.

Nat Friedman just announced it by twitter:

Today(!) we’re thrilled to announce unlimited free private repos for all GitHub users, and a new simplified Enterprise offering:

"New year, new GitHub: Announcing unlimited free private repos and unified Enterprise offering"

For the first time, developers can use GitHub for their private projects with up to three collaborators per repository for free.

Many developers want to use private repos to apply for a job, work on a side project, or try something out in private before releasing it publicly.
Starting today, those scenarios, and many more, are possible on GitHub at no cost.

Public repositories are still free (of course—no changes there) and include unlimited collaborators.

The java.util.logging.Level documentation does a good job of defining when to use a log level and the target audience of that log level.

Most of the confusion with java.util.logging is in the tracing methods. It should be in the class level documentation but instead the Level.FINE field provides a good overview:

FINE is a message level providing tracing information. All of FINE, FINER, and FINEST are intended for relatively detailed tracing. The exact meaning of the three levels will vary between subsystems, but in general, FINEST should be used for the most voluminous detailed output, FINER for somewhat less detailed output, and FINE for the lowest volume (and most important) messages. In general the FINE level should be used for information that will be broadly interesting to developers who do not have a specialized interest in the specific subsystem. FINE messages might include things like minor (recoverable) failures. Issues indicating potential performance problems are also worth logging as FINE.

One important thing to understand which is not mentioned in the level documentation is that call-site tracing information is logged at FINER.

• Logger#entering A LogRecord with message "ENTRY", log level FINER, ...
• Logger#throwing The logging is done using the FINER level...The LogRecord's message is set to "THROW"
• Logger#exiting A LogRecord with message "RETURN", log level FINER...

If you log a message as FINE you will be able to configure logging system to see the log output with or without tracing log records surrounding the log message. So use FINE only when tracing log records are not required as context to understand the log message.

FINER indicates a fairly detailed tracing message. By default logging calls for entering, returning, or throwing an exception are traced at this level.

In general, most use of FINER should be left to call of entering, exiting, and throwing. That will for the most part reserve FINER for call-site tracing when verbose logging is turned on. When swallowing an expected exception it makes sense to use FINER in some cases as the alternative to calling trace throwing method since the exception is not actually thrown. This makes it look like a trace when it isn't a throw or an actual error that would be logged at a higher level.

FINEST indicates a highly detailed tracing message.

Use FINEST when the tracing log message you are about to write requires context information about program control flow. You should also use FINEST for tracing messages that produce large amounts of output data.

CONFIG messages are intended to provide a variety of static configuration information, to assist in debugging problems that may be associated with particular configurations. For example, CONFIG message might include the CPU type, the graphics depth, the GUI look-and-feel, etc.

The CONFIG works well for assisting system admins with the items listed above.

Typically INFO messages will be written to the console or its equivalent. So the INFO level should only be used for reasonably significant messages that will make sense to end users and system administrators.

Examples of this are tracing program startup and shutdown.

In general WARNING messages should describe events that will be of interest to end users or system managers, or which indicate potential problems.

An example use case could be exceptions thrown from AutoCloseable.close implementations.

In general SEVERE messages should describe events that are of considerable importance and which will prevent normal program execution. They should be reasonably intelligible to end users and to system administrators.

For example, if you have transaction in your program where if any one of the steps fail then all of the steps voided then SEVERE would be appropriate to use as the log level.

You can use new Property Animation Api for color animation:

int colorFrom = getResources().getColor(R.color.red);
int colorTo = getResources().getColor(R.color.blue);
ValueAnimator colorAnimation = ValueAnimator.ofObject(new ArgbEvaluator(), colorFrom, colorTo);
colorAnimation.setDuration(250); // milliseconds
colorAnimation.addUpdateListener(new AnimatorUpdateListener() {

    @Override
    public void onAnimationUpdate(ValueAnimator animator) {
        textView.setBackgroundColor((int) animator.getAnimatedValue());
    }

});
colorAnimation.start();

For backward compatibility with Android 2.x use Nine Old Androids library from Jake Wharton.

The getColor method was deprecated in Android M, so you have two choices:

• If you use the support library, you need to replace the getColor calls with:

  ContextCompat.getColor(this, R.color.red);
  

• if you don't use the support library, you need to replace the getColor calls with:

  getColor(R.color.red);
  

Do a test

[[ -d dir ]] || mkdir dir

Or use -p option:

mkdir -p dir

Remove the semi-colon after no-repeat, in the url and try it .

$("#globalsearchstr").focus(function(){
    $(this).parent().css("background", "url(/images/r-srchbg_white.png) no-repeat");
});

This will surely work .

To Disable a button

$('#btn_id').button('disable');

To Enable a button

$('#btn_id').button('enable');

ls -1 log* | wc -l

Which means list one file per line and then pipe it to word count command with parameter switching to count lines.

A common way of manipulating the first responder is to use nil targeted actions. This is a way of sending an arbitrary message to the responder chain (starting with the first responder), and continuing down the chain until someone responds to the message (has implemented a method matching the selector).

For the case of dismissing the keyboard, this is the most effective way that will work no matter which window or view is first responder:

[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder) to:nil from:nil forEvent:nil];

This should be more effective than even [self.view.window endEditing:YES].

(Thanks to BigZaphod for reminding me of the concept)

Documentation on UISwitch says:

[mySwitch setOn:NO]; 

In Interface Builder, select your switch and in the Attributes inspector you'll find State which can be set to on or off.

While you are in it, I suggest to remember some key facts about compareTo() methods

1. CompareTo must be in consistent with equals method e.g. if two objects are equal via equals() , there compareTo() must return zero otherwise if those objects are stored in SortedSet or SortedMap they will not behave properly.

2. CompareTo() must throw NullPointerException if current object get compared to null object as opposed to equals() which return false on such scenario.

Read more: http://javarevisited.blogspot.com/2011/11/how-to-override-compareto-method-in.html#ixzz4B4EMGha3

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

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

Get the difference between the two date times:

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

Object created:

PS> $Obj


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

Access an item directly:

PS> $Obj.Minutes
31

I have solved the problem easily

1. Right click on database name rename it

2. After changing, right click on database name --> properties --> options --> go to bottom of scrolling RestrictAccess (SINGLE_USER to MULTI_USER)

3. Now again you can rename database as your old name.

I wanted to add one more point is, if you are storing a really large number like 902054990011312 then one can easily see the difference of INT(20) and BIGINT(20). It is advisable to store in BIGINT.

this.print(false);

I tried this in Chrome, Firefox and IE. It works only in Firefox and IE, it uses the default printer (with default print settings) and only works when I render a PDF (I use Foxit Reader with Safe Reading Mode disabled). Chrome shows the print dialog, also the other browsers when I render an HTML page.

SELECT * FROM (
    SELECT * FROM table_name ORDER BY sortable_column DESC
) WHERE ROWNUM = 1;

Oracle would be

SELECT NVL(MAX(X), 0) AS MaxX
FROM tbl
WHERE XID = 1;

There is no float: center; in css. Use margin: 0 auto; instead. So like this:

.mydivclass {
    margin: 0 auto;
 }

(MacOS) I got this issue after getting some malware that was forcing me to use WeKnow as a search engine. To fix this on MacOs I followed these steps

1. Go to System Preferences, then check if there's an icon named Profiles.

2. Remove AdminPrefs profile

3. Change default search engine settings, Restart Chrome

The above partially helped (I still had WeKnow as my home page). After that I followed these steps:

1. Type chrome://policy/ to see the policies. You cannot change them there

2. Copy paste this into your terminal

defaults write com.google.Chrome HomepageIsNewTabPage -bool false

defaults write com.google.Chrome NewTabPageLocation -string "https://www.google.com/"

defaults write com.google.Chrome HomepageLocation -string "https://www.google.com/"

defaults delete com.google.Chrome DefaultSearchProviderSearchURL

defaults delete com.google.Chrome DefaultSearchProviderNewTabURL

defaults delete com.google.Chrome DefaultSearchProviderName

I've also ran a scan of my system with Avast antivirus that has detected some malware

I Using below simple way to create a project 1- First in a directory that desire to make it project, create a .project file with below contents:

<projectDescription>
    <name>Project-Name</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
    </buildSpec>
    <natures>
    </natures>
</projectDescription>

2- Now instead of "Project-Name", write your project name, maybe current directory name

3- Now save this file to directory that desire to make that directory as project with name ".project" ( for save like this, use Notepad )

4- Now go to Eclips and open project and add your files to it.

you can use wc to count the number of characters in the file wc -m filename.txt. Hope that help.

Try using list.AddRange(VTSWeb.GetDailyWorktimeViolations(VehicleID2));

Whilst there are several good answers here, I must point out that it is not good practice to display system exception messages on error pages (which is what I am assuming you want to do). You may inadvertently reveal things you do not wish to do so to malicious users. For example Sql Server exception messages are very verbose and can give the user name, password and schema information of the database when an error occurs. That information should not be displayed to an end user.

This is perhaps the best explanations on why to use lambda expressions -> https://youtu.be/j9nj5dTo54Q

In summary, it's to improve code readability, reduce chances of errors by reusing rather than replicating code, and leverage optimization happening behind the scenes.

http://sfml-dev.org/documentation/2.0/classsf_1_1Music.php

SFML does not have mp3 support as another has suggested. What I always do is use Audacity and make all my music into ogg, and leave all my sound effects as wav.

Loading and playing a wav is simple (crude example):

http://www.sfml-dev.org/tutorials/2.0/audio-sounds.php

#include <SFML/Audio.hpp>
...
sf::SoundBuffer buffer;
if (!buffer.loadFromFile("sound.wav")){
    return -1;
}
sf::Sound sound;
sound.setBuffer(buffer);
sound.play();

Streaming an ogg music file is also simple:

#include <SFML/Audio.hpp>
...
sf::Music music;
if (!music.openFromFile("music.ogg"))
    return -1; // error
music.play();