Short, secure, without plugin:

:sav new_name
:!rm <C-R>#  // or !del <C-R># for windows

control + R, # will instantly expand to an alternate-file (previously edited path in current window) before pressing Enter. That allows us to review what exactly we're going to delete. Using pipe | in such a case is not secure, because if sav fails for any reason, # will still point to another place (or to nothing). That means !rm # or delete(expand(#)) may delete completely different file! So do it by hand carefully or use good script (they are mentioned in many answers here).

Educational

...or try build a function/command/script yourself. Start from sth simple like:

command! -nargs=1 Rename saveas <args> | call delete(expand('#')) | bd #

after vimrc reload, just type :Rename new_filename. What is the problem with this command?

Security test 1: What does:Rename without argument?

Yes, it deletes file hidden in '#' !

Solution: you can use eg. conditions or try statement like that:

command! -nargs=1 Rename try | saveas <args> | call delete(expand('#')) | bd # | endtry

Security test 1: :Rename (without argument) will throw an error:

E471: Argument required

Security test 2: What if the name will be the same like previous one?

Security test 3: What if the file will be in different location than your actual?

Fix it yourself. For readability you can write it in this manner:

function! s:localscript_name(name):
  try
    execute 'saveas ' . a:name
    ...
  endtry
endfunction
command! -nargs=1 Rename call s:localscript_name(<f-args>)

notes

• !rm # is better than !rm old_name -> you don't need remember the old name

• !rm <C-R># is better than !rm # when do it by hand -> you will see what you actually remove (safety reason)

• !rm is generally not very secure... mv to a trash location is better

• call delete(expand('#')) is better than shell command (OS agnostic) but longer to type and impossible to use control + R

• try | code1 | code2 | tryend -> when error occurs while code1, don't run code2

• :sav (or :saveas) is equivalent to :f new_name | w - see file_f - and preserves undo history

• expand('%:p') gives whole path of your location (%) or location of alternate file (#)

After trying a whole bunch of fixes including:

• Phone app's menu option (my phone did not have a option to disable)
• Proximity Screen Off Lite (did not work)
• Xposed Framework with sensor disabler (works till phone is rebooted or app updates)
• Macrodroid macro (Macrodroid does not run on my phone for some reason)
• put some tin foil in front of it?(i don't know what i was thinking)

Here is My fix: I figured you cannot break it more so I opened up my phone and removed the proximity sensor all together from the motherboard. The sensor tester app now shows "no_value" where it use to give "Distance: 0" and my screen no longer goes black after dialing. Please note I can only confirm this working on a Samsung I8190 Galaxy S III mini with CM MOD 5.1.1. Here is a picture of the device i removed: I have removed it using a SMD solder station's heat gun at 400 degrees, some tweezers and flux.But a sharp hobby knife might work too.

Use the aggregate MAX(signin) grouped by id. This will list the most recent signin for each id.

SELECT 
 id, 
 MAX(signin) AS most_recent_signin
FROM tbl
GROUP BY id

To get the whole single record, perform an INNER JOIN against a subquery which returns only the MAX(signin) per id.

SELECT 
  tbl.id,
  signin,
  signout
FROM tbl
  INNER JOIN (
    SELECT id, MAX(signin) AS maxsign FROM tbl GROUP BY id
  ) ms ON tbl.id = ms.id AND signin = maxsign
WHERE tbl.id=1

The following lines work just fine...

var headerHeight = $( '#header' ).height();
var footerHeight = $( '#footer' ).height();
var footerTop = $( '#footer' ).offset().top;
var height = ( footerTop - ( headerHeight + footerHeight ) );
$( '#content' ).height( height );

Checking the Options Over Write Database worked for me :)

this is what it worked for me:

select * from table
where column
BETWEEN STR_TO_DATE('29/01/15', '%d/%m/%Y')
 AND STR_TO_DATE('07/10/15', '%d/%m/%Y')

Please, note that I had to change STR_TO_DATE(column, '%d/%m/%Y') from previous solutions, as it was taking ages to load

Swift 4, Xcode 9.4.1

The solution that worked for me: I had a label within a collection view cell, and the label text was getting trimmed. Set the attributes as below on Storyboard

Lines = 0
LineBreak = Word Wrap
Set yourlabel's leading and trailing constraint = 0 (using Autolayout)

I had a problem where the value was not set because of a syntax error before the call.

$("#someId").value(33); //script bailed here without showing any errors Note: .value instead of .val
$("#gate").val('Gateway 2'); //this line didn't work.

Check for syntax errors before the call.

Note: This approach modifies your package.json on the fly, use it if you have no alternative.

I had to pass command line arguments to my scripts which were something like:

"scripts": {
    "start": "npm run build && npm run watch",
    "watch": "concurrently  \"npm run watch-ts\" \"npm run watch-node\"",
    ...
}

So, this means I start my app with npm run start.

Now if I want to pass some arguments, I would start with maybe:

npm run start -- --config=someConfig

What this does is: npm run build && npm run watch -- --config=someConfig. Problem with this is, it always appends the arguments to the end of the script. This means all the chained scripts don't get these arguments(Args maybe or may not be required by all, but that's a different story.). Further when the linked scripts are called then those scripts won't get the passed arguments. i.e. The watch script won't get the passed arguments.

The production usage of my app is as an .exe, so passing the arguments in the exe works fine but if want to do this during development, it gets problamatic.

I couldn't find any proper way to achieve this, so this is what I have tried.

I have created a javascript file: start-script.js at the parent level of the application, I have a "default.package.json" and instead of maintaining "package.json", I maintain "default.package.json". The purpose of start-script.json is to read default.package.json, extract the scripts and look for npm run scriptname then append the passed arguments to these scripts. After this, it will create a new package.json and copy the data from default.package.json with modified scripts and then call npm run start.

const fs = require('fs');
const { spawn } = require('child_process');

// open default.package.json
const defaultPackage = fs.readFileSync('./default.package.json');
try {
    const packageOb = JSON.parse(defaultPackage);
    // loop over the scripts present in this object, edit them with flags
    if ('scripts' in packageOb && process.argv.length > 2) {

        const passedFlags = ` -- ${process.argv.slice(2).join(' ')}`;
        // assuming the script names have words, : or -, modify the regex if required.
        const regexPattern = /(npm run [\w:-]*)/g;
        const scriptsWithFlags = Object.entries(packageOb.scripts).reduce((acc, [key, value]) => {
            const patternMatches = value.match(regexPattern);
            // loop over all the matched strings and attach the desired flags.
            if (patternMatches) {
                for (let eachMatchedPattern of patternMatches) {
                    const startIndex = value.indexOf(eachMatchedPattern);
                    const endIndex = startIndex + eachMatchedPattern.length;
                    // save the string which doen't fall in this matched pattern range.
                    value = value.slice(0, startIndex) + eachMatchedPattern + passedFlags + value.slice(endIndex);
                }
            }
            acc[key] = value;
            return acc;
        }, {});
        packageOb.scripts = scriptsWithFlags;
    }

    const modifiedJSON = JSON.stringify(packageOb, null, 4);
    fs.writeFileSync('./package.json', modifiedJSON);

    // now run your npm start script
    let cmd = 'npm';
    // check if this works in your OS
    if (process.platform === 'win32') {
        cmd = 'npm.cmd';    // https://github.com/nodejs/node/issues/3675
    }
    spawn(cmd, ['run', 'start'], { stdio: 'inherit' });

} catch(e) {
    console.log('Error while parsing default.package.json', e);
}

Now, instead of doing npm run start, I do node start-script.js --c=somethis --r=somethingElse

The initial run looks fine, but haven't tested thoroughly. Use it, if you like for you app development.

The exception means that _context is being used by two threads at the same time; either two threads in the same request, or by two requests.

Is your _context declared static maybe? It should not be.

Or are you calling GetClients multiple times in the same request from somewhere else in your code?

You may already be doing this, but ideally, you'd be using dependency injection for your DbContext, which means you'll be using AddDbContext() in your Startup.cs, and your controller constructor will look something like this:

private readonly MyDbContext _context; //not static

public MyController(MyDbContext context) {
    _context = context;
}

If your code is not like this, show us and maybe we can help further.

That should work:

>>> df = pd.DataFrame()
>>> data = pd.DataFrame({"A": range(3)})
>>> df.append(data)
   A
0  0
1  1
2  2

But the append doesn't happen in-place, so you'll have to store the output if you want it:

>>> df
Empty DataFrame
Columns: []
Index: []
>>> df = df.append(data)
>>> df
   A
0  0
1  1
2  2

The problem appears to be that you are reinitializing the list to an empty list in each iteration:

while choice != 0:
    ...
    a = []
    a.append(s)

Try moving the initialization above the loop so that it is executed only once.

a = []
while choice != 0:
    ...
    a.append(s)

In my case I had to add the public key to my repo (at Bitbucket) AND use git clone once via ssh to answer yes to the "known host" question the first time.

If you like entering arcane operators from the command line, you’ll love these manual container backup techniques. Keep in mind, there’s a faster and more efficient way to backup containers that’s just as effective. I've written instructions here: https://www.morpheusdata.com/blog/2017-03-02-how-to-create-a-docker-backup-with-morpheus

Step 1: Add a Docker Host to Any Cloud As explained in a tutorial on the Morpheus support site, you can add a Docker host to the cloud of your choice in a matter of seconds. Start by choosing Infrastructure on the main Morpheus navigation bar. Select Hosts at the top of the Infrastructure window, and click the “+Container Hosts” button at the top right.

To back up a Docker host to a cloud via Morpheus, navigate to the Infrastructure screen and open the “+Container Hosts” menu.

Choose a container host type on the menu, select a group, and then enter data in the five fields: Name, Description, Visibility, Select a Cloud and Enter Tags (optional). Click Next, and then configure the host options by choosing a service plan. Note that the Volume, Memory, and CPU count fields will be visible only if the plan you select has custom options enabled.

Here is where you add and size volumes, set memory size and CPU count, and choose a network. You can also configure the OS username and password, the domain name, and the hostname, which by default is the container name you entered previously. Click Next, and then add any Automation Workflows (optional).Finally, review your settings and click Complete to save them.

Step 2: Add Docker Registry Integration to Public or Private Clouds Adam Hicks describes in another Morpheus tutorial how simple it is to integrate with a private Docker Registry. (No added configuration is required to use Morpheus to provision images with Docker’s public hub using the public Docker API.)

Select Integrations under the Admin tab of the main navigation bar, and then choose the “+New Integration” button on the right side of the screen. In the Integration window that appears, select Docker Repository in the Type drop-down menu, enter a name and add the private registry API endpoint. Supply a username and password for the registry you’re using, and click the Save Changes button.

Integrate a Docker Registry with a private cloud via the Morpheus “New Integration” dialog box.

To provision the integration you just created, choose Docker under Type in the Create Instance dialog, select the registry in the Docker Registry drop-down menu under the Configure tab, and then continue provisioning as you would any Docker container.

Step 3: Manage Backups Once you’ve added the Docker host and integrated the registry, a backup will be configured and performed automatically for each instance you provision. Morpheus support provides instructions for viewing backups, creating an instance backup, and creating a server backup.

I realize this issue is quite old, but I think it's still worth sharing my solution as it might be useful to others.

This solution wasn't available before Android Architecture Components were released.

Activity is at least partially visible

getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.STARTED)

Activity is in the foreground

getLifecycle().getCurrentState().isAtLeast(Lifecycle.State.RESUMED)

You ca try this:

ul { list-style: none;}

li { position: relative;}

li:before {
    position: absolute;  
    top: 8px;  
    margin: 8px 0 0 -12px;    
    vertical-align: middle;
    display: inline-block;
    width: 4px;
    height: 4px;
    background: #ccc;
    content: "";
}

It worked for me, thanks to this post.

Very simple:

raw_input("Press Enter to continue ...")
exit()

I just installed WAMP 3 on Windows 10 and did not have Apache in the WampServer system tray options.

But the httpd.conf file is located here:

C:\wamp64\bin\apache\apache2.4.17\conf\

In that folder, open httpd.conf with a text editor. Then go to line 62-63 and change 80 to 8080 like this:

Listen 0.0.0.0:8080
Listen [::0]:8080

Then go to the WampServer icon in the system tray and right-click > Exit, then Open WampServer again, and it should now turn green.

Now go to localhost:8080 to see your server config page.

Basically, ajax request as well as synchronous request sends your document cookies automatically. So, you need to set your cookie to document, not to request. However, your request is cross-domain, and things became more complicated. Basing on this answer, additionally to set document cookie, you should allow its sending to cross-domain environment:

type: "GET",    
url: "http://example.com",
cache: false,
// NO setCookies option available, set cookie to document
//setCookies: "lkfh89asdhjahska7al446dfg5kgfbfgdhfdbfgcvbcbc dfskljvdfhpl",
crossDomain: true,
dataType: 'json',
xhrFields: {
    withCredentials: true
},
success: function (data) {
    alert(data);
});

This worked for me:

cp <path_to>/libstdc++.so.6 $PWD
./<executable>

This tidbit came from @kerin (comment provided above):

you might check out http://stackoverflow.com/questions/13636513/linking-libstdc-statically-any-gotchas

From that link:

If you put the newer libstdc++.so in the same directory as the executable it will be found at run-time, problem solved.

The error I was getting mentioned that libstdc++.so.6 was coming from /usr/lib64/, but this is not the library I linked against! The message looked like:

<executing_binary>: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by <executing_binary>)

I did verify that LD_LIBRARY_PATH had the directory (and that it was the first path). For some reason at runtime it was still looking at /usr/lib64/libstdc++.so.6.

I took the advice from the article above and copied the libstdc++.so.6 from where I linked into the directory with my executable, ran from there, and it worked!

You want conda update --all.

conda search --outdated will show outdated packages, and conda update --all will update them (note that the latter will not update you from Python 2 to Python 3, but the former will show Python as being outdated if you do use Python 2).

I agree with guys. But sometimes you have to add more things.

IE

1) Add this worker.WorkerSupportsCancellation = true;

2) Add to you class some method to do the following things

public void KillMe()
{
   worker.CancelAsync();
   worker.Dispose();
   worker = null;
   GC.Collect();
}

So before close your application your have to call this method.

3) Probably you can Dispose, null all variables and timers which are inside of the BackgroundWorker.

ES6

Matrix m with size 3 rows and 5 columns (remove .fill(0) to not init by zero)

[...Array(3)].map(x=>Array(5).fill(0))       

let Array2D = (r,c) => [...Array(r)].map(x=>Array(c).fill(0));

let m = Array2D(3,5);

m[1][0] = 2;  // second row, first column
m[2][4] = 8;  // last row, last column

// print formated array
console.log(JSON.stringify(m)
  .replace(/(\[\[)(.*)(\]\])/g,'[\n  [$2]\n]').replace(/],/g,'],\n  ')
);

export in sh and related shells (such as bash), marks an environment variable to be exported to child-processes, so that the child inherits them.

export is defined in POSIX:

The shell shall give the export attribute to the variables corresponding to the specified names, which shall cause them to be in the environment of subsequently executed commands. If the name of a variable is followed by = word, then the value of that variable shall be set to word.

The purpose of meshgrid is to create a rectangular grid out of an array of x values and an array of y values.

So, for example, if we want to create a grid where we have a point at each integer value between 0 and 4 in both the x and y directions. To create a rectangular grid, we need every combination of the x and y points.

This is going to be 25 points, right? So if we wanted to create an x and y array for all of these points, we could do the following.

x[0,0] = 0    y[0,0] = 0
x[0,1] = 1    y[0,1] = 0
x[0,2] = 2    y[0,2] = 0
x[0,3] = 3    y[0,3] = 0
x[0,4] = 4    y[0,4] = 0
x[1,0] = 0    y[1,0] = 1
x[1,1] = 1    y[1,1] = 1
...
x[4,3] = 3    y[4,3] = 4
x[4,4] = 4    y[4,4] = 4

This would result in the following x and y matrices, such that the pairing of the corresponding element in each matrix gives the x and y coordinates of a point in the grid.

x =   0 1 2 3 4        y =   0 0 0 0 0
      0 1 2 3 4              1 1 1 1 1
      0 1 2 3 4              2 2 2 2 2
      0 1 2 3 4              3 3 3 3 3
      0 1 2 3 4              4 4 4 4 4

We can then plot these to verify that they are a grid:

plt.plot(x,y, marker='.', color='k', linestyle='none')

Obviously, this gets very tedious especially for large ranges of x and y. Instead, meshgrid can actually generate this for us: all we have to specify are the unique x and y values.

xvalues = np.array([0, 1, 2, 3, 4]);
yvalues = np.array([0, 1, 2, 3, 4]);

Now, when we call meshgrid, we get the previous output automatically.

xx, yy = np.meshgrid(xvalues, yvalues)

plt.plot(xx, yy, marker='.', color='k', linestyle='none')

Creation of these rectangular grids is useful for a number of tasks. In the example that you have provided in your post, it is simply a way to sample a function (sin(x**2 + y**2) / (x**2 + y**2)) over a range of values for x and y.

Because this function has been sampled on a rectangular grid, the function can now be visualized as an "image".

Additionally, the result can now be passed to functions which expect data on rectangular grid (i.e. contourf)

That depends on what you want to do, but as you said, getting an entity reference using find() and then just updating that entity is the easiest way to do that.

I'd not bother about performance differences of the various methods unless you have strong indications that this really matters.

I would also note there are two ways to get the number of ms in the time point. I'm not sure which one is better, I've benchmarked them and they both have the same performance, so I guess it's a matter of preference. Perhaps Howard could chime in:

auto now = system_clock::now();

//Cast the time point to ms, then get its duration, then get the duration's count.
auto ms = time_point_cast<milliseconds>(now).time_since_epoch().count();

//Get the time point's duration, then cast to ms, then get its count.
auto ms = duration_cast<milliseconds>(tpBid.time_since_epoch()).count();

The first one reads more clearly in my mind going from left to right.

Try this one:

SELECT t1.* FROM Table1 t1
JOIN 
(
   SELECT category, MAX(date) AS MAXDATE
   FROM Table1
   GROUP BY category
) t2
ON T1.category = t2.category
AND t1.date = t2.MAXDATE

See this SQLFiddle

In TortoiseSVN right click somewhere and go TortoiseSVN > Repo Browser open the repository.

All you then have to do is drag and drop the file from one folder to the where you want it. It'll ask you to add a commit message and it defaults it to "Moved file/folder remotely"

There is none. Use script tags to link to google's version (or download it yourself and link to your copy if you really want to).

If you don't know how to do that, learn HTML and Javascript first before attempting to learn jQuery.

On a side note, in PowerShell 3.0 you can use the Get-Content cmdlet with the new Raw switch:

$text = Get-Content .\file.txt -Raw 

Content-Type: application/json is just the content header. The content header is just information about the type of returned data, ex::JSON,image(png,jpg,etc..),html.

Keep in mind, that JSON in JavaScript is an array or object. If you want to see all the data, use console.log instead of alert:

alert(response.text); // Will alert "[object Object]" string
console.log(response.text); // Will log all data objects

If you want to alert the original JSON content as a string, then add single quotation marks ('):

echo "'" . json_encode(array('text' => 'omrele')) . "'";
// alert(response.text) will alert {"text":"omrele"}

Do not use double quotes. It will confuse JavaScript, because JSON uses double quotes on each value and key:

echo '<script>var returndata=';
echo '"' . json_encode(array('text' => 'omrele')) . '"';
echo ';</script>';

// It will return the wrong JavaScript code:
<script>var returndata="{"text":"omrele"}";</script>

The string you give split is the string form of a regular expression, so:

private void getId(String pdfName){
    String[]tokens = pdfName.split("[\\-.]");
}

That means to split on any character in the [] (we have to escape - with a backslash because it's special inside []; and of course we have to escape the backslash because this is a string). (Conversely, . is normally special but isn't special inside [].)

I know this question is about Linux, but in case someone stumbles on this problem on Mac like I did here is the solution for that. I had the exact same problem on Mac because ffmpeg is not installed by default apparently, and so I could solve it using:

brew install yasm
brew install ffmpeg

This works for me in IE 7, FF 3.5, Chrome 3b, Safari 4 (Windows).

Also works in IE 6 if you uncomment the clearer div at the bottom. Edit: as Natalie Downe said, you can simply add width: 100%; to #container instead.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <style type="text/css">
        #container {
            overflow: hidden;
            border: 1px solid black;
            background-color: red;
        }
        #left-col {
            float: left;
            width: 50%;
            background-color: white;
        }
        #right-col {
            float: left;
            width: 50%;
            margin-right: -1px; /* Thank you IE */
        }
    </style>
</head>
<body>
    <div id='container'>
        <div id='left-col'>
            Test content<br />
            longer
        </div>
        <div id='right-col'>
            Test content
        </div>
        <!--div style='clear: both;'></div-->
    </div>
</body>
</html>

I don't know a CSS way to vertically center the text in the right div if the div isn't of fixed height. If it is, you can set the line-height to the same value as the div height and put an inner div containing your text with display: inline; line-height: 110%.

Actually you don't have to deal with the static metamodel if you had your annotations right.

With the following entities :

@Entity
public class Pet {
  @Id
  protected Long id;
  protected String name;
  protected String color;
  @ManyToOne
  protected Set<Owner> owners;
}

@Entity
public class Owner {
  @Id
  protected Long id;
  protected String name;
}

You can use this :

CriteriaQuery<Pet> cq = cb.createQuery(Pet.class);
Metamodel m = em.getMetamodel();
EntityType<Pet> petMetaModel = m.entity(Pet.class);

Root<Pet> pet = cq.from(Pet.class);
Join<Pet, Owner> owner = pet.join(petMetaModel.getSet("owners", Owner.class));

If you just want go get to work real fast, and move along with your work...

Just export GIT_TERMINAL_PROMPT=1

$ export GIT_TERMINAL_PROMPT=1
$ go get [whatever]

It will now prompt you for a user/pass for the rest of your shell session. Put this in your .profile or setup git as above for a more permanent solution.

This is a security feature in Rails. Add this line of code in the form:

<%= hidden_field_tag :authenticity_token, form_authenticity_token %>

Documentation can be found here: http://api.rubyonrails.org/classes/ActionController/RequestForgeryProtection.html

In XML

 <androidx.appcompat.widget.Toolbar
  android:id="@+id/main_toolbar"
  android:layout_width="match_parent"
  android:layout_height="?attr/actionBarSize"
  app:layout_scrollFlags="scroll|enterAlways">
 </androidx.appcompat.widget.Toolbar>

Kotlin: In fragment.kt -> onCreateView()

setHasOptionsMenu(true)

val toolbar = view.findViewById<Toolbar>(R.id.main_toolbar)

(activity as? AppCompatActivity)?.setSupportActionBar(toolbar)

(activity as? AppCompatActivity)?.supportActionBar?.show()

-> onCreateOptionsMenu()

   override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
       inflater.inflate(R.menu.app_main_menu,menu)
       super.onCreateOptionsMenu(menu, inflater)
   }

->onOptionsItemSelected()

   override fun onOptionsItemSelected(item: MenuItem): Boolean {
        return when (item.itemId) {
             R.id.selected_id->{//to_do}
             else -> super.onOptionsItemSelected(item)
        }
    }

Depending on how the proxy login works stream_context_set_default might help you.

$context  = stream_context_set_default(
  array(
    'http'=>array(
      'header'=>'Authorization: Basic ' . base64_encode('username'.':'.'userpass')
    )
  )
);
$result = file_get_contents('http://..../...');

Sparse checkouts are now in Git 1.7.

Also see the question “Is it possible to do a sparse checkout without checking out the whole repository first?”.

Note that sparse checkouts still require you to download the whole repository, even though some of the files Git downloads won't end up in your working tree.

You can add all pages with this code:

JS code:

 /* Top btn */
    $(window).scroll(function() {
        if ($(this).scrollTop()) {
            $('#toTop').fadeIn();
        } else {
            $('#toTop').fadeOut();
        }
    });
    var top_btn_html="<topbtn id='toTop' onclick='gotoTop()'>&#8593;</topbtn>";
    $('document').ready(function(){
        $("body").append(top_btn_html);
    });
    function gotoTop(){
        $("html, body").animate({scrollTop: 0}, 500);    
    }
    /* Top btn */

CSS CODE

/*Scrool top btn*/
#toTop{
    position: fixed;
    z-index: 10000;
    opacity: 0.5;
    right: 5px;
    bottom: 10px;
    background-color: #ccc;
    border: 1px solid black;
    width: 40px;
    height: 40px;
    border-radius: 20px;
    color: black;
    font-size: 22px;
    font-weight: bolder;
    text-align: center;
    vertical-align: middle;
}

One liner to make truncate operation:

FileChannel.open(Paths.get("/home/user/file/to/truncate"), StandardOpenOption.WRITE).truncate(0).close();

More information available at Java Documentation: https://docs.oracle.com/javase/7/docs/api/java/nio/channels/FileChannel.html

The question doesn't address multiline strings, but here is how you would strip leading whitespace from a multiline string using python's standard library textwrap module. If we had a string like:

s = """
    line 1 has 4 leading spaces
    line 2 has 4 leading spaces
    line 3 has 4 leading spaces
"""

if we print(s) we would get output like:

>>> print(s)
    this has 4 leading spaces 1
    this has 4 leading spaces 2
    this has 4 leading spaces 3

and if we used textwrap.dedent:

>>> import textwrap
>>> print(textwrap.dedent(s))
this has 4 leading spaces 1
this has 4 leading spaces 2
this has 4 leading spaces 3

We can get a single using limit in query

$query = $this->db->get_where('mytable', array('id' => $id), $limit, $offset);

 $query = $this->db->get_where('mytable', array('id' => $id), $limit, $offset);

This is generally referred to as an Indeterminate Progress Bar or Indeterminate Progress Dialog.

Combine this with a Thread and a Handler to get exactly what you want. There are a number of examples on how to do this via Google or right here on SO. I would highly recommend spending the time to learn how to use this combination of classes to perform a task like this. It is incredibly useful across many types of applications and will give you a great insight into how Threads and Handlers can work together.

I'll get you started on how this works:

The loading event starts the dialog:

//maybe in onCreate
showDialog(MY_LOADING_DIALOG);
fooThread = new FooThread(handler);
fooThread.start();

Now the thread does the work:

private class FooThread extends Thread {
    Handler mHandler;

    FooThread(Handler h) {
        mHandler = h;
    }

    public void run() { 
        //Do all my work here....you might need a loop for this

        Message msg = mHandler.obtainMessage();
        Bundle b = new Bundle();                
        b.putInt("state", 1);   
        msg.setData(b);
        mHandler.sendMessage(msg);
    }
}

Finally get the state back from the thread when it is complete:

final Handler handler = new Handler() {
    public void handleMessage(Message msg) {
        int state = msg.getData().getInt("state");
        if (state == 1){
            dismissDialog(MY_LOADING_DIALOG);
            removeDialog(MY_LOADING_DIALOG);
        }
    }
};

Late to the party, so answering more for future reference.

Advances in the field + Mozilla's mindset and agenda led to these two projects towards that end:

• Deep Speech
• Common voice

The latter has a 12GB data-set for download. The former allows for training a model with your own audio files to my understanding

df=pd.read_csv("filename.csv" , parse_dates=["<column name>"])

type(df.<column name>)

example: if you want to convert day which is initially a string to a Timestamp in Pandas

df=pd.read_csv("weather_data2.csv" , parse_dates=["day"])

type(df.day)

The output will be pandas.tslib.Timestamp

  String str = arrayList.get(position);
  arrayList.remove(str);
  MyAdapter.this.notifyDataSetChanged();

public class Example extends Activity
{
    private ListView lv;
    ArrayList<String> arrlist=new ArrayList<String>();
    //let me assume that you are putting the values in this arraylist
    //Now convert your arraylist to array

    //You will get an exmaple here

    //http://www.java-tips.org/java-se-tips/java.lang/how-to-convert-an-arraylist-into-an-array.html 

    private String arr[]=convert(arrlist);
    @Override
    public void onCreate(Bundle bun)
    {
        super.onCreate(bun);
        setContentView(R.layout.main);
        lv=(ListView)findViewById(R.id.lv);
        lv.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1 , arr));
        }
    }

Here is full component example

import { Component } from '@angular/core';

@Component({
  selector: 'app-text-box',
  template: `
        <h1>Text ({{textValue}})</h1>
        <input #textbox type="text" [(ngModel)]="textValue" required>
        <button (click)="logText(textbox.value)">Update Log</button>
        <button (click)="textValue=''">Clear</button>

        <h2>Template Reference Variable</h2>
        Type: '{{textbox.type}}', required: '{{textbox.hasAttribute('required')}}',
        upper: '{{textbox.value.toUpperCase()}}'

        <h2>Log <button (click)="log=''">Clear</button></h2>
        <pre>{{log}}</pre>`
})
export class TextComponent {

  textValue = 'initial value';
  log = '';

  logText(value: string): void {
    this.log += `Text changed to '${value}'\n`;
  }
}

It is all but satisfying, isn't it? The easiest way I have found to specify when setting the context, e.g.:

sns.set_context("paper", rc={"font.size":8,"axes.titlesize":8,"axes.labelsize":5})   

This should take care of 90% of standard plotting usage. If you want ticklabels smaller than axes labels, set the 'axes.labelsize' to the smaller (ticklabel) value and specify axis labels (or other custom elements) manually, e.g.:

axs.set_ylabel('mylabel',size=6)

you could define it as a function and load it in your scripts so you don't have to remember your standard numbers, or call it every time.

def set_pubfig:
    sns.set_context("paper", rc={"font.size":8,"axes.titlesize":8,"axes.labelsize":5})   

Of course you can use configuration files, but I guess the whole idea is to have a simple, straightforward method, which is why the above works well.

Note: If you specify these numbers, specifying font_scale in sns.set_context is ignored for all specified font elements, even if you set it.

I would also like to point out that in case you are using command line arguments as part of a shell script (.sh file), then within the script, you would need to enclose the argument in quotes. So if your command looks like

>scriptName.sh arg1 arg2

And arg1 is your path that has spaces, then within the shell script, you would need to refer to it as "$arg1" instead of $arg1

Here are the details

Yep, that would be the enumerate function! Or more to the point, you need to do:

list(enumerate([3,7,19]))

[(0, 3), (1, 7), (2, 19)]

As many others have mentioned, selector:focus {outline: none;} will remove that border but that border is a key accessibility feature that allows for keyboard users to find the button and shouldn't be removed.

Since your concern seems to be an aesthetic one, you should know that you can change the color, style, and width of the outline, making it fit into your site styling better.

selector:focus {
  outline-width: 1px;
  outline-style: dashed;
  outline-color: red;
}

Shorthand:

selector:focus {
  outline: 1px dashed red;
}

Your sprite is created mid way through the playerSprite function... it also goes out of scope and ceases to exist at the end of that same function. The sprite must be created where you can pass it to playerSprite to initialize it and also where you can pass it to your draw function.

Perhaps declare it above your first while?

had this problem as output from Azure DevOps after setting to build the .csproj instead of the .sln in the Build Pipeline.

The solution for me: Edit .csproj of the affected project, then copy your whole

<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCpu' ">

Node, paste it, and then change the first line as followed:

    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|any cpu' ">

The reason is, that in my case the error said

Please check to make sure that you have specified a valid combination of Configuration and Platform for this project.  Configuration='release'  Platform='any cpu'.  

Why Azure wants to use "any cpu" instead of the default "AnyCpu" is a mystery for me, but this hack works.

You can invoke private method with reflection. Modifying the last bit of the posted code:

Method method = object.getClass().getDeclaredMethod(methodName);
method.setAccessible(true);
Object r = method.invoke(object);

There are a couple of caveats. First, getDeclaredMethod will only find method declared in the current Class, not inherited from supertypes. So, traverse up the concrete class hierarchy if necessary. Second, a SecurityManager can prevent use of the setAccessible method. So, it may need to run as a PrivilegedAction (using AccessController or Subject).

First give the link of logout.php page in that logout button.In that page make the code which is given below:

Here is the code:

<?php
 session_start();
 session_destroy();
?>

When the session has started, the session for the last/current user has been started, so don't need to declare the username. It will be deleted automatically by the session_destroy method.

You can do this:

<div class"my_class">
<?php if ($cart->count_product > 0) {
          print $cart->count_product; 
      } else { 
          print ''; 
      } 
?>
</div>

Before hitting the div, we are not in PHP tags

For PHP, Java, C++, C, Perl, JavaScript, CSS you can try:

http://www.prettyprinter.de/index.php

Short variant:

my_var = some_value if 'my_var' not in globals() else my_var:

Use this:

([^,;]*[,;])*

You can use Time::Piece, which shouldn't need installing as it is a core module and has been distributed with Perl 5 since version 10.

use Time::Piece;

my $date = localtime->strftime('%m/%d/%Y');
print $date;

output

06/13/2012

Update

You may prefer to use the dmy method, which takes a single parameter which is the separator to be used between the fields of the result, and avoids having to specify a full date/time format

my $date = localtime->dmy('/');

This produces an identical result to that of my original solution

Press the start button in visual studio. Then go to the location where your solution is stored and open the folder of your main project then the bin folder. If your application was running in debug mode then go to the debug folder. If running in release mode then go to the release folder. You should find your exe there.

Make the following changes in your Registry and it should work:

1.) .NET Framework strong cryptography registry keys

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001

2.) Secure Channel (Schannel) TLS 1.2 registry keys

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001

Array indexes in JavaScript start at zero for the first item, so try this:

var firstArrayItem = myValues[0]

Of course, if you actually want the second item in the array at index 1, then it's myValues[1].

See Accessing array elements for more info.

from jQuery v1.6 use prop

to check that is checkd or not

$('input:radio').prop('checked') // will return true or false

and to make it checkd use

$("input").prop("checked", true);

http://jstun.javawi.de/ will do it - provided your gateway device does STUN )most do)

asyncio.wait is more low level than asyncio.gather.

As the name suggests, asyncio.gather mainly focuses on gathering the results. It waits on a bunch of futures and returns their results in a given order.

asyncio.wait just waits on the futures. And instead of giving you the results directly, it gives done and pending tasks. You have to manually collect the values.

Moreover, you could specify to wait for all futures to finish or just the first one with wait.

You can not create URI from resources inside of the jar file. You can simply write it to the temp file and then use it (java8):

Path path = File.createTempFile("some", "address").toPath();
Files.copy(ClassLoader.getSystemResourceAsStream("/path/to/resource"), path, StandardCopyOption.REPLACE_EXISTING);

According to the documentation of the Item property:

Sets or returns an item for a specified key in a Dictionary object.

In your case, you don't have an item whose key is 1 so doing:

s = d.Item(i)

actually creates a new key / value pair in your dictionary, and the value is empty because you have not used the optional newItem argument.

The Dictionary also has the Items method which allows looping over the indices:

a = d.Items
For i = 0 To d.Count - 1
    s = a(i)
Next i

Importing the Single Table

To import a single table into an existing database you would use the following command:

mysql -u username -p -D database_name < tableName.sql

Note:It is better to use full path of the sql file tableName.sql

Note that RFC 6266 supersedes the RFCs referenced below. Section 7 outlines some of the related security concerns.

The authority on the content-disposition header is RFC 1806 and RFC 2183. People have also devised content-disposition hacking. It is important to note that the content-disposition header is not part of the HTTP 1.1 standard.

The HTTP 1.1 Standard (RFC 2616) also mentions the possible security side effects of content disposition:

15.5 Content-Disposition Issues

RFC 1806 [35], from which the often implemented Content-Disposition
(see section 19.5.1) header in HTTP is derived, has a number of very
serious security considerations. Content-Disposition is not part of
the HTTP standard, but since it is widely implemented, we are
documenting its use and risks for implementors. See RFC 2183 [49]
(which updates RFC 1806) for details.

We tried a few applications, both trials of commercial products and freely available ones. Ultimately, it was the trial edition of the Team Test Load Agent software that we tried. It definitely works great and is fairly simple to use. In the long run, it bolstered our argument to move to Team Foundation Server and equip all parts of the department with the appropriate tooling.

The obvious downside, however, is the price.

package com.mycompany;

import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

public class Car {

    @NotNull
    private String manufacturer;

    @NotNull
    @Size(min = 2, max = 14)
    private String licensePlate;

    @Min(2)
    private int seatCount;

    public Car(String manufacturer, String licencePlate, int seatCount) {
        this.manufacturer = manufacturer;
        this.licensePlate = licencePlate;
        this.seatCount = seatCount;
    }

    //getters and setters ...
}

@NotNull, @Size and @Min are so-called constraint annotations, that we use to declare constraints, which shall be applied to the fields of a Car instance:

manufacturer shall never be null

licensePlate shall never be null and must be between 2 and 14 characters long

seatCount shall be at least 2.

Simply this, no extra div or JavaScript needed, just pure CSS (jsfiddle demo):

HTML

<a href="javascript:alert('Hello!')" class="changesImgOnHover">
    <img src="http://dummyimage.com/50x25/00f/ff0.png&text=Hello!" alt="Hello!">
</a>

CSS

.changesImgOnHover {
    display: inline-block; /* or just block */
    width: 50px;
    background: url('http://dummyimage.com/50x25/0f0/f00.png&text=Hello!') no-repeat;
}
.changesImgOnHover:hover img {
    visibility: hidden;
}

There is another solution I've been using. Just create a string property and use it for json. This property wil return date properly formatted.

class JSonModel {
    ...

    [JsonIgnore]
    public DateTime MyDate { get; set; }

    [JsonProperty("date")]
    public string CustomDate {
        get { return MyDate.ToString("ddMMyyyy"); }
        // set { MyDate = DateTime.Parse(value); }
        set { MyDate = DateTime.ParseExact(value, "ddMMyyyy", null); }
    }

    ...
}

This way you don't have to create extra classes. Also, it allows you to create diferent data formats. e.g, you can easily create another Property for Hour using the same DateTime.

The bitmap constructor has resizing built in.

Bitmap original = (Bitmap)Image.FromFile("DSC_0002.jpg");
Bitmap resized = new Bitmap(original,new Size(original.Width/4,original.Height/4));
resized.Save("DSC_0002_thumb.jpg");

http://msdn.microsoft.com/en-us/library/0wh0045z.aspx

If you want control over interpolation modes see this post.

UEFA or FIFA don't seem to provide any API to get the information you want. However, there are some third-party services which support that:

• OPTA - Both commercial and free. They have incredible database about matches. Whoscored.com currently uses it.

• Others: livescoreboards, xmlsoccer, ...

In atan2, the output is: -pi < atan2(y,x) <pi
and in atan, the output is: -pi/2 < atan(y/x) < pi/2 //it dose NOT consider the quarter.
If you want to get the orientation between 0 and 2*pi (like the high-school math), we need to use the atan2 and for negative values add the 2*pi to get the final result between 0 and 2*pi.
Here is the Java source code to explain it clearly:

System.out.println(Math.atan2(1,1)); //pi/4 in the 1st quarter
System.out.println(Math.atan2(1,-1)); //(pi/4)+(pi/2)=3*(pi/4) in the 2nd quarter

System.out.println(Math.atan2(-1,-1 ));//-3*(pi/4) and it is less than 0.
System.out.println(Math.atan2(-1,-1)+2*Math.PI); //5(pi/4) in the 3rd quarter

System.out.println(Math.atan2(-1,1 ));//-pi/4 and it is less than 0.
System.out.println(Math.atan2(-1,1)+2*Math.PI); //7*(pi/4) in the 4th quarter

System.out.println(Math.atan(1 ));//pi/4
System.out.println(Math.atan(-1 ));//-pi/4

Probaly you can use Iframe for this. Facebook probably uses this technique. You can read more on this here. Stackoverflow uses similar technique, but with HTML5 local storage, more on this on their blog

Invoking javap to read the bytecode

The javap command takes class-names without the .class extension. Try

javap -c ClassName

Converting .class files back to .java files

javap will however not give you the implementations of the methods in java-syntax. It will at most give it to you in JVM bytecode format.

To actually decompile (i.e., do the reverse of javac) you will have to use proper decompiler. See for instance the following related question:

• How do I "decompile" Java class files?

#!/usr/bin/python
# -*- coding: utf-8 -*-
# Works on python 3 and python 2.
# when server knows where the request is coming from.

import sys

if sys.version_info[0] == 3:
    from urllib.request import urlopen
else:
    from urllib import urlopen
with urlopen('https://www.facebook.com/') as \
    url:
    data = url.read()

print data

# When the server does not know where the request is coming from.
# Works on python 3.

import urllib.request

user_agent = \
    'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7'

url = 'https://www.facebook.com/'
headers = {'User-Agent': user_agent}

request = urllib.request.Request(url, None, headers)
response = urllib.request.urlopen(request)
data = response.read()
print data

You can also try this:

<a href="" onclick="if (confirm('Delete selected item?')){return true;}else{event.stopPropagation(); event.preventDefault();};" title="Link Title">
    Link Text
</a>

Use this:

echo "${@:2}"

The following syntax:

echo "${*:2}"

would work as well, but is not recommended, because as @Gordon already explained, that using *, it runs all of the arguments together as a single argument with spaces, while @ preserves the breaks between them (even if some of the arguments themselves contain spaces). It doesn't make the difference with echo, but it matters for many other commands.

Yes! When IE9 is released in Jan 2011.

Let's say you want an even 15px on all four sides:

.myclass {
 border-style: solid;
 border-width: 2px;
 -moz-border-radius: 15px;
 -webkit-border-radius: 15px;
 border-radius: 15px;
}

IE9 will use the default border-radius, so just make sure you include that in all your styles calling a border radius. Then your site will be ready for IE9.

-moz-border-radius is for Firefox, -webkit-border-radius is for Safari and Chrome.

Furthermore: don't forget to declare your IE coding is ie9:

<meta http-equiv="X-UA-Compatible" content="IE=9" />

Some lazy developers have <meta http-equiv="X-UA-Compatible" content="IE=7" />. If that tag exists, border-radius will never work in IE.

protected void Page_Load(object sender, EventArgs e)
    {
        Session["MyTest"] = "abcd";

        String csname = "OnSubmitScript";
        Type cstype = this.GetType();

        // Get a ClientScriptManager reference from the Page class.
        ClientScriptManager cs = Page.ClientScript;

        // Check to see if the OnSubmit statement is already registered.
        if (!cs.IsOnSubmitStatementRegistered(cstype, csname))
        {
            string cstext = " document.getElementById(\"TextBox1\").value = getMyvalSession()  ; ";
            cs.RegisterOnSubmitStatement(cstype, csname, cstext);
        }

        if (TextBox1.Text.Equals("")) { }
        else {
              Session["MyTest"] = TextBox1.Text;
        }

    }


<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

    <script language=javascript type="text/javascript">
        function getMyvalSession() {

             var txt = "efgh";
             var ff = '<%=Session["MyTest"] %>' + txt;
             return ff ;
        }
    </script>

</head>
<body>

    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"  AutoPostBack=true ></asp:TextBox>
     <input type="submit"  value="Submit" />
    </div>
    </form>
</body>
</html>

window.open('mailto:[email protected]'); as above does nothing to hide the "[email protected]" email address from being harvested by spambots. I used to constantly run into this problem.

var recipient="test";
var at = String.fromCharCode(64);
var dotcom="example.com";
var mail="mailto:";
window.open(mail+recipient+at+dotcom);

console.log() just takes whatever you pass to it and writes it to a console's log window. If you pass in an array, you'll be able to inspect the array's contents. Pass in an object, you can examine the object's attributes/methods. pass in a string, it'll log the string. Basically it's "document.write" but can intelligently take apart its arguments and write them out elsewhere.

It's useful to outputting occasional debugging information, but not particularly useful if you have a massive amount of debugging output.

To watch as a script's executing, you'd use a debugger instead, which allows you step through the code line-by-line. console.log's used when you need to display what some variable's contents were for later inspection, but do not want to interrupt execution.

The last-child selector is used to select the last child element of a parent. It cannot be used to select the last child element with a specific class under a given parent element.

The other part of the compound selector (which is attached before the :last-child) specifies extra conditions which the last child element must satisfy in-order for it to be selected. In the below snippet, you would see how the selected elements differ depending on the rest of the compound selector.

.parent :last-child{ /* this will select all elements which are last child of .parent */_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.parent div:last-child{ /* this will select the last child of .parent only if it is a div*/_x000D_
  background: crimson;_x000D_
}_x000D_
_x000D_
.parent div.child-2:last-child{ /* this will select the last child of .parent only if it is a div and has the class child-2*/_x000D_
  color: beige;_x000D_
}

<div class='parent'>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <div>Child w/o class</div>_x000D_
</div>_x000D_
<div class='parent'>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child-2'>Child w/o class</div>_x000D_
</div>_x000D_
<div class='parent'>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <div class='child'>Child</div>_x000D_
  <p>Child w/o class</p>_x000D_
</div>

To answer your question, the below would style the last child li element with background color as red.

li:last-child{
    background-color: red;
}

But the following selector would not work for your markup because the last-child does not have the class='complete' even though it is an li.

li.complete:last-child{
    background-color: green;
}

It would have worked if (and only if) the last li in your markup also had class='complete'.

To address your query in the comments:

@Harry I find it rather odd that: .complete:last-of-type does not work, yet .complete:first-of-type does work, regardless of it's position it's parents element. Thanks for your help.

The selector .complete:first-of-type works in the fiddle because it (that is, the element with class='complete') is still the first element of type li within the parent. Try to add <li>0</li> as the first element under the ul and you will find that first-of-type also flops. This is because the first-of-type and last-of-type selectors select the first/last element of each type under the parent.

Refer to the answer posted by BoltClock, in this thread for more details about how the selector works. That is as comprehensive as it gets :)

The standard Sun JDK for linux has an absolutely ok cacerts and overall all files in the specified directory. The problem is the installation you use.

Short version for easy use:

SELECT * 
FROM [TableName] t
WHERE t.[DateColumnName] >= DATEADD(month, -1, GETDATE())

DATEADD and GETDATE are available in SQL Server starting with 2008 version. MSDN documentation: GETDATE and DATEADD.

Stream<Integer> stream = Stream.of(1, 2, 3, 4, 5, 6);

int[] arr=   stream.mapToInt(x->x.intValue()).toArray();

You have to load the url helper to access that function. Either you add

$this->load->helper('url');

somewhere in your controller.

Alternately, to have it be loaded automatically everywhere, make sure the line in application/config/autoload.php that looks like

$autoload['helper'] = array('url');

has 'url' in that array (as shown above).

You have to add the schema first e.g.

SELECT * FROM place.user_place;

If you don't want to add that in all queries then try this:

SET search_path TO place;

Now it will works:

SELECT * FROM user_place;

Here's what I've found:

@Html.TextBoxFor(c => c.Propertyname, new { @Value = "5" })

works with a capital V, not a lower case v (the assumption being value is a keyword used in setters typically) Lower vs upper value

@Html.EditorFor(c => c.Propertyname, new { @Value = "5" })

does not work

Your code ends up looking like this though

<input Value="5" id="Propertyname" name="Propertyname" type="text" value="" />

Value vs. value. Not sure I'd be too fond of that.

Why not just check in the controller action if the proprety has a value or not and if it doesn't just set it there in your view model to your defaulted value and let it bind so as to avoid all this monkey work in the view?

Using both is an important part of application delivery testing. I am only beginning to get involved with Docker and thinking very hard about an application team that has terrible complexity in building and delivering its software. Think of a classic Phoenix Project / Continuous Delivery situation.

The thinking goes something like this:

• Take a Java/Go application component and build it as a container (note, not sure if the app should be built in the container or built then installed to the container)
• Deliver the container to a Vagrant VM.
• Repeat this for all application components.
• Iterate on the component(s) to code against.
• Continuously test the delivery mechanism to the VM(s) managed by Vagrant
• Sleep well knowing when it is time to deploy the container, that integration testing was occurring on a much more continuous basis than it was before Docker.

This seems to be the logical extension of Mitchell's statement that Vagrant is for development combined with Farley/Humbles thinking in Continuous Delivery. If I, as a developer, can shrink the feedback loop on integration testing and application delivery, higher quality and better work environments will follow.

The fact that as a developer I am constantly and consistently delivering containers to the VM and testing the application more holistically means that production releases will be further simplified.

So I see Vagrant evolving as a way of leveraging some of the awesome consequences Docker will have for app deployment.

One thing that really hung me up, was when I inspected this html in the browser, instead of seeing it expanded to something like:

<button ng-click="removeTask(1234)">remove</button>

I saw:

<button ng-click="removeTask(task.id)">remove</button>

However, the latter works!

This is because you are in the "Angular World", when inside ng-click="" Angular all ready knows about task.id as you are inside it's model. There is no need to use Data binding, as in {{}}.

Further, if you wanted to pass the task object itself, you can like:

<button ng-click="removeTask(task)">remove</button>

nmap can discover the MAC address of a remote target only if

• the target is on the same link as the machine nmap runs on, or
• the target leaks this information through SNMP, NetBIOS etc.

Another possibility comes with IPv6 if the target uses EUI-64 identifiers, then the MAC address can be deduced from the IP address.

Apart from the above possibilities, there is no reliable way to obtain the MAC address of a remote target with network scanning techniques.

You can use any of the following:

\b      #A word break and will work for both spaces and end of lines.
(^|\s)  #the | means or. () is a capturing group. 


/\b(stackoverflow)\b/

Also, if you don't want to include the space in your match, you can use lookbehind/aheads.

(?<=\s|^)         #to look behind the match
(stackoverflow)   #the string you want. () optional
(?=\s|$)          #to look ahead.

Case: If you need to ignore the merge commit created by default, follow these steps.

Say, a new feature branch is checked out from master having 2 commits already,

• "Added A" , "Added B"

Checkout a new feature_branch

• "Added C" , "Added D"

Feature branch then adds two commits-->

• "Added E", "Added F"

Now if you want to merge feature_branch changes to master, Do git merge feature_branch sitting on the master.

This will add all commits into master branch (4 in master + 2 in feature_branch = total 6) + an extra merge commit something like 'Merge branch 'feature_branch'' as the master is diverged.

If you really need to ignore these commits (those made in FB) and add the whole changes made in feature_branch as a single commit like 'Integrated feature branch changes into master', Run git merge feature_merge --no-commit.

With --no-commit, it perform the merge and stop just before creating a merge commit, We will have all the added changes in feature branch now in master and get a chance to create a new commit as our own.

Read here for more : https://git-scm.com/docs/git-merge

For those working in asynchronous environments, moment behaves unexpectedly when loading locales on demand.

Instead of

await import('moment/locale/en-ca');
moment.locale('en-ca');

reverse the order

moment.locale('en-ca');
await import('moment/locale/en-ca');

It seems like the locales are loaded into the current selected locale, overriding any previously set locale information. So switching the locale first, then loading the locale information does not cause this issue.

One of the principal issues with pushing to a GIT is that the material you push will appear as your material, and will block submissions from other people on a team. As a GIT repository administrator, you will have to manage the hooks to prevent Alice's push from blocking Bob from pushing. To do that, you will want to ensure that your developers all belong to a group, lets call it 'developers' and that the repository is owned by root:developers, and then add this to the hooks/post-update script:

sudo chown -R root:developers $GIT_DIR
sudo chmod -R g+w $GIT_DIR

That will make it so that team members are able to push to the repository without stepping on each other's toes.

From Sort an array of associative arrays by value of given key in php:

by using usort (http://php.net/usort) , we can sort an array in ascending and descending order. just we need to create a function and pass it as parameter in usort. As per below example used greater than for ascending order if we passed less than condition then it's sort in descending order. Example :

$array = array(
  array('price'=>'1000.50','product'=>'test1'),
  array('price'=>'8800.50','product'=>'test2'),
  array('price'=>'200.0','product'=>'test3')
);

function cmp($a, $b) {
  return $a['price'] > $b['price'];
}

usort($array, "cmp");
print_r($array);

Output:

Array
 (
    [0] => Array
        (
            [price] => 200.0
            [product] => test3
        )

    [1] => Array
        (
            [price] => 1000.50
            [product] => test1
        )

    [2] => Array
        (
            [price] => 8800.50
            [product] => test2
        )
  )

My +1 to mata's comment at https://stackoverflow.com/a/10561979/1346705 and to the Nick Craig-Wood's demonstration. You have decoded the string correctly. The problem is with the print command as it converts the Unicode string to the console encoding, and the console is not capable to display the string. Try to write the string into a file and look at the result using some decent editor that supports Unicode:

import codecs

s = '(\xef\xbd\xa1\xef\xbd\xa5\xcf\x89\xef\xbd\xa5\xef\xbd\xa1)\xef\xbe\x89'
s1 = s.decode('utf-8')
f = codecs.open('out.txt', 'w', encoding='utf-8')
f.write(s1)
f.close()

Then you will see (?????)?.

In the vast majority of cases, the "stringification" of a SQLAlchemy statement or query is as simple as:

print(str(statement))

This applies both to an ORM Query as well as any select() or other statement.

Note: the following detailed answer is being maintained on the sqlalchemy documentation.

To get the statement as compiled to a specific dialect or engine, if the statement itself is not already bound to one you can pass this in to compile():

print(statement.compile(someengine))

or without an engine:

from sqlalchemy.dialects import postgresql
print(statement.compile(dialect=postgresql.dialect()))

When given an ORM Query object, in order to get at the compile() method we only need access the .statement accessor first:

statement = query.statement
print(statement.compile(someengine))

with regards to the original stipulation that bound parameters are to be "inlined" into the final string, the challenge here is that SQLAlchemy normally is not tasked with this, as this is handled appropriately by the Python DBAPI, not to mention bypassing bound parameters is probably the most widely exploited security holes in modern web applications. SQLAlchemy has limited ability to do this stringification in certain circumstances such as that of emitting DDL. In order to access this functionality one can use the 'literal_binds' flag, passed to compile_kwargs:

from sqlalchemy.sql import table, column, select

t = table('t', column('x'))

s = select([t]).where(t.c.x == 5)

print(s.compile(compile_kwargs={"literal_binds": True}))

the above approach has the caveats that it is only supported for basic types, such as ints and strings, and furthermore if a bindparam without a pre-set value is used directly, it won't be able to stringify that either.

To support inline literal rendering for types not supported, implement a TypeDecorator for the target type which includes a TypeDecorator.process_literal_param method:

from sqlalchemy import TypeDecorator, Integer


class MyFancyType(TypeDecorator):
    impl = Integer

    def process_literal_param(self, value, dialect):
        return "my_fancy_formatting(%s)" % value

from sqlalchemy import Table, Column, MetaData

tab = Table('mytable', MetaData(), Column('x', MyFancyType()))

print(
    tab.select().where(tab.c.x > 5).compile(
        compile_kwargs={"literal_binds": True})
)

producing output like:

SELECT mytable.x
FROM mytable
WHERE mytable.x > my_fancy_formatting(5)

That's HTML, but yes, you can bang pretty much any selectors you like together.

#x.y { }

(And the HTML is fine too)

Logging has different levels such as :
Trace – A fine-grained debug message, typically capturing the flow through the application. Debug- A general debugging event should be logged under this.
ALL – All events could be logged.
INFO- An informational purpose, information written in plain english.
Warn- An event that might possible lead to an error.
Error- An error in the application, possibly recoverable.

Logging captured with debug level is information helpful to developers as well as other personnel, so it captures in broad range. If your code doesn't have exception or errors then you should be alright to use DEBUG level of logging, otherwise you should carefully choose options.

If you're using an OS (like OS X) that doesn't have the dos2unix command but does have a Python interpreter (version 2.5+), this command is equivalent to the dos2unix command:

python -c "import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))"

This handles both named files on the command line as well as pipes and redirects, just like dos2unix. If you add this line to your ~/.bashrc file (or equivalent profile file for other shells):

alias dos2unix="python -c \"import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))\""

... the next time you log in (or run source ~/.bashrc in the current session) you will be able to use the dos2unix name on the command line in the same manner as in the other examples.

This would be the command line statement.

"%JMETER_HOME%\bin\jmeter.bat" -n -t <jmx test file path> -l <csv result file path> -Djmeter.save.saveservice.output_format=csv

Both answers above explain very well the question regarding string patterns. However, just in case you are working with ISO 8601 there is no need to apply DateTimeFormatter since LocalDateTime is already prepared for it:

Convert LocalDateTime to Time Zone ISO8601 String

LocalDateTime ldt = LocalDateTime.now(); 
ZonedDateTime zdt = ldt.atZone(ZoneOffset.UTC); //you might use a different zone
String iso8601 = zdt.toString();

Convert from ISO8601 String back to a LocalDateTime

String iso8601 = "2016-02-14T18:32:04.150Z";
ZonedDateTime zdt = ZonedDateTime.parse(iso8601);
LocalDateTime ldt = zdt.toLocalDateTime();

<?php
  define('CSSPATH', 'template/css/'); //define css path
  $cssItem = 'style.css'; //css item to display
?>    
<html>
<head>
 <title>Including css</title>
  <link rel="stylesheet" href="<?php echo (CSSPATH . "$cssItem"); ?>" type="text/css">
</head>
<body>
...
...
</body>
</html>

YOUR CSS ITEM IS INCLUDED

This will return both the beginning of the week and the end of the week dates:

    private string[] GetWeekRange(DateTime dateToCheck)
    {
        string[] result = new string[2];
        TimeSpan duration = new TimeSpan(0, 0, 0, 0); //One day 
        DateTime dateRangeBegin = dateToCheck;
        DateTime dateRangeEnd = DateTime.Today.Add(duration);

        dateRangeBegin = dateToCheck.AddDays(-(int)dateToCheck.DayOfWeek);
        dateRangeEnd = dateToCheck.AddDays(6 - (int)dateToCheck.DayOfWeek);

        result[0] = dateRangeBegin.Date.ToString();
        result[1] = dateRangeEnd.Date.ToString();
        return result;

    }

I have posted the complete code for calculating the begin/end of week, month, quarter and year on my blog ZamirsBlog

tl;dr:

There are 3 main issues with multithreading:

1) Race Conditions

2) Caching / stale memory

3) Complier and CPU optimisations

volatile can solve 2 & 3, but can't solve 1. synchronized/explicit locks can solve 1, 2 & 3.

Elaboration:

1) Consider this thread unsafe code:

x++;

While it may look like one operation, it's actually 3: reading the current value of x from memory, adding 1 to it, and saving it back to memory. If few threads try to do it at the same time, the result of the operation is undefined. If x originally was 1, after 2 threads operating the code it may be 2 and it may be 3, depending on which thread completed which part of the operation before control was transferred to the other thread. This is a form of race condition.

Using synchronized on a block of code makes it atomic - meaning it make it as if the 3 operations happen at once, and there's no way for another thread to come in the middle and interfere. So if x was 1, and 2 threads try to preform x++ we know in the end it will be equal to 3. So it solves the race condition problem.

synchronized (this) {
   x++; // no problem now
}

Marking x as volatile does not make x++; atomic, so it doesn't solve this problem.

2) In addition, threads have their own context - i.e. they can cache values from main memory. That means that a few threads can have copies of a variable, but they operate on their working copy without sharing the new state of the variable among other threads.

Consider that on one thread, x = 10;. And somewhat later, in another thread, x = 20;. The change in value of x might not appear in the first thread, because the other thread has saved the new value to its working memory, but hasn't copied it to the main memory. Or that it did copy it to the main memory, but the first thread hasn't updated its working copy. So if now the first thread checks if (x == 20) the answer will be false.

Marking a variable as volatile basically tells all threads to do read and write operations on main memory only. synchronized tells every thread to go update their value from main memory when they enter the block, and flush the result back to main memory when they exit the block.

Note that unlike data races, stale memory is not so easy to (re)produce, as flushes to main memory occur anyway.

3) The complier and CPU can (without any form of synchronization between threads) treat all code as single threaded. Meaning it can look at some code, that is very meaningful in a multithreading aspect, and treat it as if it’s single threaded, where it’s not so meaningful. So it can look at a code and decide, in sake of optimisation, to reorder it, or even remove parts of it completely, if it doesn’t know that this code is designed to work on multiple threads.

Consider the following code:

boolean b = false;
int x = 10;

void threadA() {
    x = 20;
    b = true;
}

void threadB() {
    if (b) {
        System.out.println(x);
    }
}

You would think that threadB could only print 20 (or not print anything at all if threadB if-check is executed before setting b to true), as b is set to true only after x is set to 20, but the compiler/CPU might decide to reorder threadA, in that case threadB could also print 10. Marking b as volatile ensures that it won’t be reordered (or discarded in certain cases). Which mean threadB could only print 20 (or nothing at all). Marking the methods as syncrhonized will achieve the same result. Also marking a variable as volatile only ensures that it won’t get reordered, but everything before/after it can still be reordered, so synchronization can be more suited in some scenarios.

Note that before Java 5 New Memory Model, volatile didn’t solve this issue.

If you need to delete based on a list, you can use IN:

DELETE FROM your_table
WHERE id IN (value1, value2, ...);

If you need to delete based on the result of a query, you can also use IN:

DELETE FROM your_table
WHERE id IN (select aColumn from ...);

(Notice that the subquery must return only one column)

If you need to delete based on a range of values, either you use BETWEEN or you use inequalities:

DELETE FROM your_table
WHERE id BETWEEN bottom_value AND top_value;

or

DELETE FROM your_table
WHERE id >= a_value AND id <= another_value;

You are creating an alias P and later in the where clause you are using the same, that is what is creating the problem. Don't use P in where, try this instead:

SELECT Replace(Postcode, ' ', '') AS P FROM Contacts
WHERE Postcode LIKE 'NW101%'

Tools >> Options >> Fonts & Colors >> Syntax tab. Select 'Default' from the Category list and click the ... button like you said.

It's the Default you need to select first before changing the size.

To find the number of days in a month, DateTime class provides a method "DaysInMonth(int year, int month)". This method returns the total number of days in a specified month.

public int TotalNumberOfDaysInMonth(int year, int month)
    {
        return DateTime.DaysInMonth(year, month);
    }

OR

int days = DateTime.DaysInMonth(2018,05);

Output :- 31

You can use ImportRow method to copy Row from DataTable to DataTable with the same schema:

var row = SourceTable.Rows[RowNum];
DestinationTable.ImportRow(row);

Update:

With your new Edit, I believe:

var desRow = dataTable.NewRow();
var sourceRow = dataTable.Rows[rowNum];
desRow.ItemArray = sourceRow.ItemArray.Clone() as object[];

will work

edit/update: Xcode 8.3.1 • Swift 3.1

extension NSView {
    var backgroundColor: NSColor? {
        get {
            guard let color = layer?.backgroundColor else { return nil }
            return NSColor(cgColor: color)
        }
        set {
            wantsLayer = true
            layer?.backgroundColor = newValue?.cgColor
        }
    }
}

usage:

let myView = NSView(frame: NSRect(x: 0, y: 0, width: 100, height: 100))
print(myView.backgroundColor ?? "none")     //  NSView's background hasn't been set yet = nil
myView.backgroundColor = .red               // set NSView's background color to red color
print(myView.backgroundColor ?? "none")
view.addSubview(myView)

According to http://www.cplusplus.com/reference/std/iterator/distance/, since vec.begin() is a random access iterator, the distance method uses the - operator.

So the answer is, from a performance point of view, it is the same, but maybe using distance() is easier to understand if anybody would have to read and understand your code.

Non iterative formula:

public static int GetHighestDigit(int num)
{
    if (num <= 0)
       return 0; 

    return (int)((double)num / Math.Pow(10f, Math.Floor(Math.Log10(num))));
}

Looping over arrays and objects is a pretty common task, and it's good that you're wanting to learn how to do it. Generally speaking you can do a foreach loop which cycles over each member, assigning it a new temporary name, and then lets you handle that particular member via that name:

foreach ($arr as $item) {
    echo $item->sm_id;
}

In this example each of our values in the $arr will be accessed in order as $item. So we can print our values directly off of that. We could also include the index if we wanted:

foreach ($arr as $index => $item) {
    echo "Item at index {$index} has sm_id value {$item->sm_id}";
}

Three options:

1. Create the new database, bring down the server, move the files from one database folder to the other, and restart the server. Note that this will only work if ALL of your tables are MyISAM.

2. Create the new database, use CREATE TABLE ... LIKE statements, and then use INSERT ... SELECT * FROM statements.

3. Use mysqldump and reload with that file.

I think you are getting confused with your site Authentication and SSL.

If you need to get your site into SSL, then you would need to install a SSL certificate into your web server. You can buy a certificate for yourself from one of the places like Symantec etc. The certificate would contain your public/private key pair, along with other things.

You wont need to do anything in your source code, and you can still continue to use your Form Authntication (or any other) in your site. Its just that, any data communication that takes place between the web server and the client will encrypted and signed using your certificate. People would use secure-HTTP (https://) to access your site.

View this for more info --> http://en.wikipedia.org/wiki/Transport_Layer_Security

Another way of initializing an array of structs is to initialize the array members explicitly. This approach is useful and simple if there aren't too many struct and array members.

Use the typedef specifier to avoid re-using the struct statement everytime you declare a struct variable:

typedef struct
{
    double p[3];//position
    double v[3];//velocity
    double a[3];//acceleration
    double radius;
    double mass;
}Body;

Then declare your array of structs. Initialization of each element goes along with the declaration:

Body bodies[n] = {{{0,0,0}, {0,0,0}, {0,0,0}, 0, 1.0}, 
                  {{0,0,0}, {0,0,0}, {0,0,0}, 0, 1.0}, 
                  {{0,0,0}, {0,0,0}, {0,0,0}, 0, 1.0}};

To repeat, this is a rather simple and straightforward solution if you don't have too many array elements and large struct members and if you, as you stated, are not interested in a more dynamic approach. This approach can also be useful if the struct members are initialized with named enum-variables (and not just numbers like the example above) whereby it gives the code-reader a better overview of the purpose and function of a structure and its members in certain applications.

Sometimes size "picks the wrong one" and returns a hash (which is what count would do)

In that case, use length to get an integer instead of hash.

No need for any Java or Kotlin code to make it a clickable link, now you just need to follow given below code. And you can also link text color change by using textColorLink.

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:autoLink="web"
android:textColorLink="@color/white"/>

None of the configuration above worked for me on my CentOS 7 server. After hours of searching, that's what worked for me:

Edit file phpMyAdmin.conf

sudo nano /etc/httpd/conf.d/phpMyAdmin.conf

And replace this at the top:

<Directory /usr/share/phpMyAdmin/>
   AddDefaultCharset UTF-8

   <IfModule mod_authz_core.c>
     # Apache 2.4
     <RequireAny>
       #Require ip 127.0.0.1
       #Require ip ::1
       Require all granted
     </RequireAny>
   </IfModule>
   <IfModule !mod_authz_core.c>
     # Apache 2.2
     Order Deny,Allow
     Deny from All
     Allow from 127.0.0.1
     Allow from ::1
   </IfModule>
</Directory>

If you are working in Ubuntu,follow the steps:

1. Press / and type word to search
2. To search in forward press 'SHIFT' key with * key
3. To search in backward press 'SHIFT' key with # key

If you just want to log the list of elements, you can use the list toString() method which already concatenates all the list elements.

i faced an issue something like this...

Actually, in two ways you can process find command output in copy command

1. If find command's output doesn't contain any space i.e if file name doesn't contain space in it then you can use below mentioned command:

   Syntax: find <Path> <Conditions> | xargs cp -t <copy file path>

   Example: find -mtime -1 -type f | xargs cp -t inner/

2. But most of the time our production data files might contain space in it. So most of time below mentioned command is safer:

   Syntax: find <path> <condition> -exec cp '{}' <copy path> \;

   Example find -mtime -1 -type f -exec cp '{}' inner/ \;

In the second example, last part i.e semi-colon is also considered as part of find command, that should be escaped before press the enter button. Otherwise you will get an error something like this

find: missing argument to `-exec'

In your case, copy command syntax is wrong in order to copy find file into /home/shantanu/tosend. The following command will work:

find /home/shantanu/processed/ -name '*2011*.xml' -exec cp  {} /home/shantanu/tosend \;

Try the SVG2VectorDrawable Plugin. Go to Preferences->Plugins->Browse Plugins and install SVG2VectorDrawable. Great for converting sag files to vector drawable. Once you have installed you will find an icon for this in the toolbar section just to the right of the help (?) icon.

List myArrayList  = Collections.synchronizedList(new ArrayList());

//add your elements  
 myArrayList.add();
 myArrayList.add();
 myArrayList.add();

synchronized(myArrayList) {
    Iterator i = myArrayList.iterator(); 
     while (i.hasNext()){
         Object  object = i.next();
     }
 }

Suppose the dataframe df has 3 columns id1, name1, price1 and you wish to rename them to id2, name2, price2

val list = List("id2", "name2", "price2")
import spark.implicits._
val df2 = df.toDF(list:_*)
df2.columns.foreach(println)

I found this approach useful in many cases.

Here's a short means I used to reduce the size of Images that have a high byteCount (basically pixels)

fun resizeImage(image: Bitmap): Bitmap {

    val width = image.width
    val height = image.height

    val scaleWidth = width / 10
    val scaleHeight = height / 10

    if (image.byteCount <= 1000000)
        return image

    return Bitmap.createScaledBitmap(image, scaleWidth, scaleHeight, false)
}

This returns a scaled Bitmap that is over 10 times smaller than the Bitmap passed as a parameter. Might not be the most ideal solution but it works.

I know it's an old topic but still. I've just met the problem in the code I am debugging at work and maybe somebody may have similar issue...

Let's say the code looks like this:

$positions = $this->positions() || [];

You would expect (as you are used to from e.g. javascript) that when $this->positions() returns false or null, $positions is empty array. But it isn't. The value is TRUE or FALSE depends on what $this->positions() returns.

If you need to get value of $this->positions() or empty array, you have to use:

$positions = $this->positions() or [];

EDIT:

The above example doesn't work as intended but the truth is that || and or is not the same... Try this:

<?php

function returnEmpty()
{
  //return "string";
  //return [1];
  return null;
}

$first = returnEmpty() || [];
$second = returnEmpty() or [];
$third = returnEmpty() ?: [];

var_dump($first);
var_dump($second);
var_dump($third);
echo "\n";

This is the result:

bool(false)
NULL
array(0) {
}

So, actually the third option ?: is the correct solution when you want to set returned value or empty array.

$positions = $this->positions() ?: [];

Tested with PHP 7.2.1

This is the simple solution may work for you.

Check this solution

$('form').on('submit', function (e) {
e.preventDefault();
var emailBox=$("#email");
var passBox=$("#password");
if (!emailBox.val() || !passBox.val()) {
    $(".validationText").text("Please Enter Value").show();
}
else if(!IsEmail(emailBox.val()))
{
    emailBox.prev().text("Invalid E-mail").show();
}
$("input#email, input#password").focus(function(){
    $(this).prev(".validationText").hide();
});});

Like other have said, span is an in-line element.

See here: http://www.w3.org/TR/CSS2/visuren.html

Additionally, you can make a span behave like a div by applying a

style="display: block; margin: 0px auto; text-align: center;"

Depends on implementation but I would use

(?i)G[a-b].

VARIATIONS:

(?i) case-insensitive mode ON    
(?-i) case-insensitive mode OFF

Modern regex flavors allow you to apply modifiers to only part of the regular expression. If you insert the modifier (?im) in the middle of the regex then the modifier only applies to the part of the regex to the right of the modifier. With these flavors, you can turn off modes by preceding them with a minus sign (?-i).

Description is from the page: https://www.regular-expressions.info/modifiers.html

Walkthrough: Using Multiple Programming Languages in a Web Site Project http://msdn.microsoft.com/en-us/library/ms366714.aspx

By default, the App_Code folder does not allow multiple programming languages. However, in a Web site project you can modify your folder structure and configuration settings to support multiple programming languages such as Visual Basic and C#. This allows ASP.NET to create multiple assemblies, one for each language. For more information, see Shared Code Folders in ASP.NET Web Projects. Developers commonly include multiple programming languages in Web applications to support multiple development teams that operate independently and prefer different programming languages.

After creating virtual environment copy the activate.bat file from Script folder of python and paste to it your environment and open cmd from your virtual environment and run activate.bat file.enter image description here

df.groupby('l_customer_id_i').agg(lambda x: ','.join(x)) does already return a dataframe, so you cannot loop over the groups anymore.

In general:

• df.groupby(...) returns a GroupBy object (a DataFrameGroupBy or SeriesGroupBy), and with this, you can iterate through the groups (as explained in the docs here). You can do something like:

  grouped = df.groupby('A')
  
  for name, group in grouped:
      ...
  

• When you apply a function on the groupby, in your example df.groupby(...).agg(...) (but this can also be transform, apply, mean, ...), you combine the result of applying the function to the different groups together in one dataframe (the apply and combine step of the 'split-apply-combine' paradigm of groupby). So the result of this will always be again a DataFrame (or a Series depending on the applied function).

You can use javascript's document.evaluate to run an XPath expression on the DOM. I think it's supported in one way or another in browsers back to IE 6.

MDN: https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate

IE supports selectNodes instead.

MSDN: https://msdn.microsoft.com/en-us/library/ms754523(v=vs.85).aspx

Undoubtedly, for your purposes (which I assume is just a programming exercise), the best thing is to check your results against any of the listings of the digits of pi on the web.

And how do we know that those values are correct? Well, I could say that there are computer-science-y ways to prove that an implementation of an algorithm is correct.

More pragmatically, if different people use different algorithms, and they all agree to (pick a number) a thousand (million, whatever) decimal places, that should give you a warm fuzzy feeling that they got it right.

Historically, William Shanks published pi to 707 decimal places in 1873. Poor guy, he made a mistake starting at the 528th decimal place.

Very interestingly, in 1995 an algorithm was published that had the property that would directly calculate the nth digit (base 16) of pi without having to calculate all the previous digits!

Finally, I hope your initial algorithm wasn't pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... That may be the simplest to program, but it's also one of the slowest ways to do so. Check out the pi article on Wikipedia for faster approaches.

Could anybody post a working solution for doing this in the terminal?

ANDROID_HOME is usually a directory like .android. Its where things like the Debug Key will be stored.

export ANDROID_HOME=~/.android 

You can automate it for your login. Just add it to your .bash_profile (below is from my OS X 10.8.5 machine):

$ cat ~/.bash_profile
# MacPorts Installer addition on 2012-07-19 at 20:21:05
export PATH=/opt/local/bin:/opt/local/sbin:$PATH

# Android
export ANDROID_NDK_ROOT=/opt/android-ndk-r9
export ANDROID_SDK_ROOT=/opt/android-sdk
export JAVA_HOME=`/usr/libexec/java_home`
export ANDROID_HOME=~/.android

export PATH="$ANDROID_SDK_ROOT/tools/":"$ANDROID_SDK_ROOT/platform-tools/":"$PATH"

According to David Turner on the NDK Mailing List, both ANDROID_NDK_ROOT and ANDROID_SDK_ROOT need to be set because other tools depend on those values (see Recommended NDK Directory?).

After modifying ~/.bash_profile, then perform the following (or logoff and back on):

source ~/.bash_profile

Found the code that I referred to in my comment above. To test it, do this:

1. In Sheet1 change the cell height and width of say A1 as shown in the snapshot below.
2. Format the cell by right clicking on it to show time format
3. Add two buttons (form controls) on the worksheet and name them as shown in the snapshot
4. Paste this code in a module
5. Right click on the Start Timer button on the sheet and click on Assign Macros. Select StartTimer macro.
6. Right click on the End Timer button on the sheet and click on Assign Macros. Select EndTimer macro.

Now click on Start Timer button and you will see the time getting updated in cell A1. To stop time updates, Click on End Timer button.

Code (TRIED AND TESTED)

Public Declare Function SetTimer Lib "user32" ( _
ByVal HWnd As Long, ByVal nIDEvent As Long, _
ByVal uElapse As Long, ByVal lpTimerFunc As Long) As Long

Public Declare Function KillTimer Lib "user32" ( _
ByVal HWnd As Long, ByVal nIDEvent As Long) As Long

Public TimerID As Long, TimerSeconds As Single, tim As Boolean
Dim Counter As Long

'~~> Start Timer
Sub StartTimer()
    '~~ Set the timer for 1 second
    TimerSeconds = 1
    TimerID = SetTimer(0&, 0&, TimerSeconds * 1000&, AddressOf TimerProc)
End Sub

'~~> End Timer
Sub EndTimer()
    On Error Resume Next
    KillTimer 0&, TimerID
End Sub

Sub TimerProc(ByVal HWnd As Long, ByVal uMsg As Long, _
ByVal nIDEvent As Long, ByVal dwTimer As Long)
    '~~> Update value in Sheet 1
    Sheet1.Range("A1").Value = Time
End Sub

SNAPSHOT

If you are still interested in a javascript api to select both date and time data, have a look at these projects which are forks of bootstrap datepicker:

• Bootstrap Datetime Picker 1

• Bootstrap Datetime Picker 2

The first fork is a big refactor on the parsing/formatting codebase and besides providing all views to select date/time using mouse/touch, it also has a mask option (by default) which lets the user to quickly type the date/time based on a pre-specified format.

For an iBeacon with ProximityUUID E2C56DB5-DFFB-48D2-B060-D0F5A71096E0, major 0, minor 0, and calibrated Tx Power of -59 RSSI, the transmitted BLE advertisement packet looks like this:

d6 be 89 8e 40 24 05 a2 17 6e 3d 71 02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 00 00 00 00 c5 52 ab 8d 38 a5

This packet can be broken down as follows:

d6 be 89 8e # Access address for advertising data (this is always the same fixed value)
40 # Advertising Channel PDU Header byte 0.  Contains: (type = 0), (tx add = 1), (rx add = 0)
24 # Advertising Channel PDU Header byte 1.  Contains:  (length = total bytes of the advertising payload + 6 bytes for the BLE mac address.)
05 a2 17 6e 3d 71 # Bluetooth Mac address (note this is a spoofed address)
02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 00 00 00 00 c5 # Bluetooth advertisement
52 ab 8d 38 a5 # checksum

The key part of that packet is the Bluetooth Advertisement, which can be broken down like this:

02 # Number of bytes that follow in first AD structure
01 # Flags AD type
1A # Flags value 0x1A = 000011010  
   bit 0 (OFF) LE Limited Discoverable Mode
   bit 1 (ON) LE General Discoverable Mode
   bit 2 (OFF) BR/EDR Not Supported
   bit 3 (ON) Simultaneous LE and BR/EDR to Same Device Capable (controller)
   bit 4 (ON) Simultaneous LE and BR/EDR to Same Device Capable (Host)
1A # Number of bytes that follow in second (and last) AD structure
FF # Manufacturer specific data AD type
4C 00 # Company identifier code (0x004C == Apple)
02 # Byte 0 of iBeacon advertisement indicator
15 # Byte 1 of iBeacon advertisement indicator
e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 # iBeacon proximity uuid
00 00 # major 
00 00 # minor 
c5 # The 2's complement of the calibrated Tx Power

Any Bluetooth LE device that can be configured to send a specific advertisement can generate the above packet. I have configured a Linux computer using Bluez to send this advertisement, and iOS7 devices running Apple's AirLocate test code pick it up as an iBeacon with the fields specified above. See: Use BlueZ Stack As A Peripheral (Advertiser)

This blog has full details about the reverse engineering process.

\tag also works in align*. Example:

\begin{align*}
  a(x)^{2} &= bx\tag{1}\\ 
  a(x)^{2} &= b\tag{2}\\ 
  ax &= b\tag{3}\\ 
  a(x)^{2}+bx &= c\tag{4}\\ 
  a(x)^{2}+c &= bx\tag{5}\\ 
  a(x)^{2} &= bx+c\tag{6}\\ \\ 
  Where\quad a, b, c \, \in N
\end{align*}

Output:

Padding is added to the overall width. Because your container has a pixel width, you are better off giving the inputs a pixel width too, but remember to remove the padding and border from the width you set to avoid the same issue.

To check whether select box has any values:

if( $('#fruit_name').has('option').length > 0 ) {

To check whether selected value is empty:

if( !$('#fruit_name').val() ) { 

Many hours spent to clarify what was that. Please, read this post to get the advanced .HTACCESS codes and learn what they do.

You can use:

Header append Vary "Accept-Encoding"
#or
Header set Vary "Accept-Encoding"

You can proxyfy references to your object with, for example, dictionary singleton. You may store not object, but its ID or hash and access it trought the dictionary. Then when you need to remove the object you set value for its key to null.

I switched from LinearLayout.LayoutParams to RelativeLayout.LayoutParams to finally get the result I was desiring on a custom circleview I created.

But instead of gravity you use addRule

RelativeLayout.LayoutParams mCircleParams = new RelativeLayout.LayoutParams(circleheight,circleheight);

    mCircleParams.addRule(RelativeLayout.CENTER_IN_PARENT);

work for me

func webView(webView: WKWebView, decidePolicyForNavigationAction navigationAction: WKNavigationAction, decisionHandler: (WKNavigationActionPolicy) -> Void) {
    let headerFields = navigationAction.request.allHTTPHeaderFields
    var headerIsPresent = contains(headerFields?.keys.array as! [String], "Cookie")

    if headerIsPresent {
        decisionHandler(WKNavigationActionPolicy.Allow)
    } else {
        let req = NSMutableURLRequest(URL: navigationAction.request.URL!)
        let cookies = yourCookieData
        let values = NSHTTPCookie.requestHeaderFieldsWithCookies(cookies)
        req.allHTTPHeaderFields = values
        webView.loadRequest(req)

        decisionHandler(WKNavigationActionPolicy.Cancel)
    }
}

I use this trick for equal data bucketing. Instead of text result you get the number. Here is example for four buckets. Suppose you have data in A1:A100 range. Put this formula in B1:

=MAX(ROUNDUP(PERCENTRANK($A$1:$A$100,A1) *4,0),1)

Fill down the formula all across B column and you are done. The formula divides the range into 4 equal buckets and it returns the bucket number which the cell A1 falls into. The first bucket contains the lowest 25% of values.

Adjust the number of buckets according to thy wish:

=MAX(ROUNDUP(PERCENTRANK([Range],[OneCellOfTheRangeToTest]) *[NumberOfBuckets],0),1)

The number of observation in each bucket will be equal or almost equal. For example if you have a 100 observations and you want to split it into 3 buckets (like in your example) then the buckets will contain 33, 33, 34 observations. So almost equal. You do not have to worry about that - the formula works that out for you.

Your question is vague (are you always looking for the first part?), but you can get the exact output you asked for with string.Split:

string[] substrings = a.Split(',');
b = substrings[0];
Console.WriteLine(b);

Output:

abc

I would checkout the remote file from the "master" (the remote/origin repository) like this:

git checkout master <FileWithPath>

Example: git checkout master components/indexTest.html

Try below:

SELECT CONVERT(VARCHAR(20), GETDATE(), 101)

It looks like the problem had been resolved with the latest Chrome update... I'm running the Chrome Version 36.0.1964.4 dev-m.

I was limited too warning the user from closing print preview window by doing the following:

if(navigator.userAgent.toLowerCase().indexOf('chrome') > -1){   // Chrome Browser Detected?
    window.PPClose = false;                                     // Clear Close Flag
    window.onbeforeunload = function(){                         // Before Window Close Event
        if(window.PPClose === false){                           // Close not OK?
            return 'Leaving this page will block the parent window!\nPlease select "Stay on this Page option" and use the\nCancel button instead to close the Print Preview Window.\n';
        }
    }                   
    window.print();                                             // Print preview
    window.PPClose = true;                                      // Set Close Flag to OK.
}

Now the warning is no longer coming up after the Chrome update.

You can use var() function.

The var() CSS function can be used to insert the value of a custom property (sometimes called a "CSS variable") instead of any part of a value of another property.

Example:

:root {
  --main-bg-color: yellow;
}

@media (prefers-color-scheme: dark) {
  :root {
    --main-bg-color: black;
  }
}

body {
  background-color: var(--main-bg-color);
}

I was getting the same error when trying to copy a file. Closing a channel associated with the target file solved the problem.

Path destFile = Paths.get("dest file");
SeekableByteChannel destFileChannel = Files.newByteChannel(destFile);
//...
destFileChannel.close();  //removing this will throw java.nio.file.AccessDeniedException:
Files.copy(Paths.get("source file"), destFile);

For me the error was:

Error: unexpected input in "?"

and the fix was opening the script in a hex editor and removing the first 3 characters from the file. The file was starting with an UTF-8 BOM and it seems that Rscript can't read that.

EDIT: OP requested an example. Here it goes.

?  ~ cat a.R
cat('hello world\n')
?  ~ xxd a.R
00000000: efbb bf63 6174 2827 6865 6c6c 6f20 776f  ...cat('hello wo
00000010: 726c 645c 6e27 290a                      rld\n').
?  ~ R -f a.R        

R version 3.4.4 (2018-03-15) -- "Someone to Lean On"
Copyright (C) 2018 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> cat('hello world\n')
Error: unexpected input in "?"
Execution halted

Easy Javascript Add more Rows with delete functionality

Cheers !

<TABLE id="dataTable">
<tr><td>
               <INPUT TYPE=submit name=submit id=button class=btn_medium VALUE=\'Save\'  >
               <INPUT type="button" value="AddMore" onclick="addRow(\'dataTable\')" class="btn_medium"    /> 
</td></tr>

<TR>
<TD> 
                <input type="text" size="20" name="values[]"/> <br><small><font color="gray">Enter Title</font></small> 
</TD>
</TR>
</table>



<script>


function addRow(tableID) {

        var table = document.getElementById(tableID);

        var rowCount = table.rows.length;
        var row = table.insertRow(rowCount);

        var cell3 = row.insertCell(0);
       cell3.innerHTML = cell3.innerHTML +' <input type="text" size="20" name="values[]"/> <INPUT type="button"  class="btn_medium" value="Remove" onclick="this.parentNode.parentNode.parentNode.removeChild(this.parentNode.parentNode);" /><br><small><font color="gray">Enter Title</font></small>';
  //cell3.innerHTML = cell3.innerHTML +' <input type="text" size="20" name="values[]"/> <INPUT type="button"  class="btn_medium" value="Remove" onclick="this.parentNode.parentNode.innerHTML=\'\';" /><br><small><font color="gray">Enter Title</font></small>';       
}

</script>

On Linux, I've never found an ioctl() solution. For our applications, we coded a general utility routine based on reading files in /proc/pid. There are a number of these files which give differing results. Here's the one we settled on (the question was tagged C++, and we handled I/O using C++ constructs, but it should be easily adaptable to C i/o routines if you need to):

#include <unistd.h>
#include <ios>
#include <iostream>
#include <fstream>
#include <string>

//////////////////////////////////////////////////////////////////////////////
//
// process_mem_usage(double &, double &) - takes two doubles by reference,
// attempts to read the system-dependent data for a process' virtual memory
// size and resident set size, and return the results in KB.
//
// On failure, returns 0.0, 0.0

void process_mem_usage(double& vm_usage, double& resident_set)
{
   using std::ios_base;
   using std::ifstream;
   using std::string;

   vm_usage     = 0.0;
   resident_set = 0.0;

   // 'file' stat seems to give the most reliable results
   //
   ifstream stat_stream("/proc/self/stat",ios_base::in);

   // dummy vars for leading entries in stat that we don't care about
   //
   string pid, comm, state, ppid, pgrp, session, tty_nr;
   string tpgid, flags, minflt, cminflt, majflt, cmajflt;
   string utime, stime, cutime, cstime, priority, nice;
   string O, itrealvalue, starttime;

   // the two fields we want
   //
   unsigned long vsize;
   long rss;

   stat_stream >> pid >> comm >> state >> ppid >> pgrp >> session >> tty_nr
               >> tpgid >> flags >> minflt >> cminflt >> majflt >> cmajflt
               >> utime >> stime >> cutime >> cstime >> priority >> nice
               >> O >> itrealvalue >> starttime >> vsize >> rss; // don't care about the rest

   stat_stream.close();

   long page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // in case x86-64 is configured to use 2MB pages
   vm_usage     = vsize / 1024.0;
   resident_set = rss * page_size_kb;
}

int main()
{
   using std::cout;
   using std::endl;

   double vm, rss;
   process_mem_usage(vm, rss);
   cout << "VM: " << vm << "; RSS: " << rss << endl;
}

Syntax

 Datatype[] variable = new Datatype[] { value1,value2.... }

 Datatype variable[]  = new Datatype[] { value1,value2.... }

Example :

int [] points = new int[]{ 1,2,3,4 };

import glob
import os

root_dir = <root_dir_here>

for filename in glob.iglob(root_dir + '**/**', recursive=True):
    if os.path.isfile(filename):
        with open(filename,'r') as file:
            print(file.read())

**/** is used to get all files recursively including directory.

if os.path.isfile(filename) is used to check if filename variable is file or directory, if it is file then we can read that file. Here I am printing file.

If you're using cyrus/sasl/imap on your mailserver, then one fast and efficient way to purge everything in a mailbox that is older then number of days specified is to use cyrus/imap ipurge command. For example, here is an example removing everything (be carefull!!), older then 30 days from user vleo. Notice, that you must be logged in as cyrus (imap mail administrator) user:

[cyrus@mailserver ~]$ /usr/lib/cyrus-imapd/ipurge -f -d 30 user.vleo Working on user.vleo... total messages 4 total bytes 113183 Deleted messages 0 Deleted bytes 0 Remaining messages 4 Remaining bytes 113183

Yes right the static array is created at the compile time where as the dynamic array is created on the run time. Where as the difference as far is concerned with their memory locations the static are located on the stack and the dynamic are created on the heap. Everything which gets located on heap needs the memory management until and unless garbage collector as in the case of .net framework is present otherwise there is a risk of memory leak.

According to sdk src code from ...\android-22\android\content\pm\PackageManager.java

/**
 * Installation return code: this is passed to the {@link IPackageInstallObserver} by
 * {@link #installPackage(android.net.Uri, IPackageInstallObserver, int)} if
 * the new package has an older version code than the currently installed package.
 * @hide
 */
public static final int INSTALL_FAILED_VERSION_DOWNGRADE = -25;

if the new package has an older version code than the currently installed package.

This is what worked for me...

import cv2
import numpy as np

#Created an image (really an ndarray) with three channels 
new_image = np.ndarray((3, num_rows, num_cols), dtype=int)

#Did manipulations for my project where my array values went way over 255
#Eventually returned numbers to between 0 and 255

#Converted the datatype to np.uint8
new_image = new_image.astype(np.uint8)

#Separated the channels in my new image
new_image_red, new_image_green, new_image_blue = new_image

#Stacked the channels
new_rgb = np.dstack([new_image_red, new_image_green, new_image_blue])

#Displayed the image
cv2.imshow("WindowNameHere", new_rgbrgb)
cv2.waitKey(0)

Use the is_user_logged_in function:

if ( is_user_logged_in() ) {
   // your code for logged in user 
} else {
   // your code for logged out user 
}

I usually add to index changes I don't want to stash and then stash with --keep-index option.

git add app/controllers/cart_controller.php
git stash --keep-index
git reset

Last step is optional, but usually you want it. It removes changes from index.

Warning As noted in the comments, this puts everything into the stash, both staged and unstaged. The --keep-index just leaves the index alone after the stash is done. This can cause merge conflicts when you later pop the stash.

Uploading files is actually possible with AJAX these days. Yes, AJAX, not some crappy AJAX wannabes like swf or java.

This example might help you out: https://webblocks.nl/tests/ajax/file-drag-drop.html

(It also includes the drag/drop interface but that's easily ignored.)

Basically what it comes down to is this:

<input id="files" type="file" />

<script>
document.getElementById('files').addEventListener('change', function(e) {
    var file = this.files[0];
    var xhr = new XMLHttpRequest();
    (xhr.upload || xhr).addEventListener('progress', function(e) {
        var done = e.position || e.loaded
        var total = e.totalSize || e.total;
        console.log('xhr progress: ' + Math.round(done/total*100) + '%');
    });
    xhr.addEventListener('load', function(e) {
        console.log('xhr upload complete', e, this.responseText);
    });
    xhr.open('post', '/URL-HERE', true);
    xhr.send(file);
});
</script>

(demo: http://jsfiddle.net/rudiedirkx/jzxmro8r/)

So basically what it comes down to is this =)

xhr.send(file);

Where file is typeof Blob: http://www.w3.org/TR/FileAPI/

Another (better IMO) way is to use FormData. This allows you to 1) name a file, like in a form and 2) send other stuff (files too), like in a form.

var fd = new FormData;
fd.append('photo1', file);
fd.append('photo2', file2);
fd.append('other_data', 'foo bar');
xhr.send(fd);

FormData makes the server code cleaner and more backward compatible (since the request now has the exact same format as normal forms).

All of it is not experimental, but very modern. Chrome 8+ and Firefox 4+ know what to do, but I don't know about any others.

This is how I handled the request (1 image per request) in PHP:

if ( isset($_FILES['file']) ) {
    $filename = basename($_FILES['file']['name']);
    $error = true;

    // Only upload if on my home win dev machine
    if ( isset($_SERVER['WINDIR']) ) {
        $path = 'uploads/'.$filename;
        $error = !move_uploaded_file($_FILES['file']['tmp_name'], $path);
    }

    $rsp = array(
        'error' => $error, // Used in JS
        'filename' => $filename,
        'filepath' => '/tests/uploads/' . $filename, // Web accessible
    );
    echo json_encode($rsp);
    exit;
}

I have run into the same problem and I worked with a simple extension to allow Named services. You can find it here:

• https://www.nuget.org/packages/Subgurim.Microsoft.Extensions.DependencyInjection.Named/
• https://github.com/subgurim/Microsoft.Extensions.DependencyInjection.Named

It allows you to add as many (named) services as you want like this:

 var serviceCollection = new ServiceCollection();
 serviceCollection.Add(typeof(IMyService), typeof(MyServiceA), "A", ServiceLifetime.Transient);
 serviceCollection.Add(typeof(IMyService), typeof(MyServiceB), "B", ServiceLifetime.Transient);

 var serviceProvider = serviceCollection.BuildServiceProvider();

 var myServiceA = serviceProvider.GetService<IMyService>("A");
 var myServiceB = serviceProvider.GetService<IMyService>("B");

The library also allows you to easy implement a "factory pattern" like this:

    [Test]
    public void FactoryPatternTest()
    {
        var serviceCollection = new ServiceCollection();
        serviceCollection.Add(typeof(IMyService), typeof(MyServiceA), MyEnum.A.GetName(), ServiceLifetime.Transient);
        serviceCollection.Add(typeof(IMyService), typeof(MyServiceB), MyEnum.B.GetName(), ServiceLifetime.Transient);

        serviceCollection.AddTransient<IMyServiceFactoryPatternResolver, MyServiceFactoryPatternResolver>();

        var serviceProvider = serviceCollection.BuildServiceProvider();

        var factoryPatternResolver = serviceProvider.GetService<IMyServiceFactoryPatternResolver>();

        var myServiceA = factoryPatternResolver.Resolve(MyEnum.A);
        Assert.NotNull(myServiceA);
        Assert.IsInstanceOf<MyServiceA>(myServiceA);

        var myServiceB = factoryPatternResolver.Resolve(MyEnum.B);
        Assert.NotNull(myServiceB);
        Assert.IsInstanceOf<MyServiceB>(myServiceB);
    }

    public interface IMyServiceFactoryPatternResolver : IFactoryPatternResolver<IMyService, MyEnum>
    {
    }

    public class MyServiceFactoryPatternResolver : FactoryPatternResolver<IMyService, MyEnum>, IMyServiceFactoryPatternResolver
    {
        public MyServiceFactoryPatternResolver(IServiceProvider serviceProvider)
        : base(serviceProvider)
        {
        }
    }

    public enum MyEnum
    {
        A = 1,
        B = 2
    }

Hope it helps

Herb Sutter is still on record, along with Bjarne Stroustroup, in recommending const std::string& as a parameter type; see https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#Rf-in .

There is a pitfall not mentioned in any of the other answers here: if you pass a string literal to a const std::string& parameter, it will pass a reference to a temporary string, created on-the-fly to hold the characters of the literal. If you then save that reference, it will be invalid once the temporary string is deallocated. To be safe, you must save a copy, not the reference. The problem stems from the fact that string literals are const char[N] types, requiring promotion to std::string.

The code below illustrates the pitfall and the workaround, along with a minor efficiency option -- overloading with a const char* method, as described at Is there a way to pass a string literal as reference in C++.

(Note: Sutter & Stroustroup advise that if you keep a copy of the string, also provide an overloaded function with a && parameter and std::move() it.)

#include <string>
#include <iostream>
class WidgetBadRef {
public:
    WidgetBadRef(const std::string& s) : myStrRef(s)  // copy the reference...
    {}

    const std::string& myStrRef;    // might be a reference to a temporary (oops!)
};

class WidgetSafeCopy {
public:
    WidgetSafeCopy(const std::string& s) : myStrCopy(s)
            // constructor for string references; copy the string
    {std::cout << "const std::string& constructor\n";}

    WidgetSafeCopy(const char* cs) : myStrCopy(cs)
            // constructor for string literals (and char arrays);
            // for minor efficiency only;
            // create the std::string directly from the chars
    {std::cout << "const char * constructor\n";}

    const std::string myStrCopy;    // save a copy, not a reference!
};

int main() {
    WidgetBadRef w1("First string");
    WidgetSafeCopy w2("Second string"); // uses the const char* constructor, no temp string
    WidgetSafeCopy w3(w2.myStrCopy);    // uses the String reference constructor
    std::cout << w1.myStrRef << "\n";   // garbage out
    std::cout << w2.myStrCopy << "\n";  // OK
    std::cout << w3.myStrCopy << "\n";  // OK
}

OUTPUT:

const char * constructor
const std::string& constructor

Second string
Second string

Try the following:

using System;
using System.Drawing;
using System.Threading;
using System.Windows.Forms;

class Program
{
    static void Main(string[] args)
    {
        var source =  @"
        <!DOCTYPE html>
        <html>
            <body>
                <p>An image from W3Schools:</p>
                <img 
                    src=""http://www.w3schools.com/images/w3schools_green.jpg"" 
                    alt=""W3Schools.com"" 
                    width=""104"" 
                    height=""142"">
            </body>
        </html>";
        StartBrowser(source);
        Console.ReadLine();
    }

    private static void StartBrowser(string source)
    {
        var th = new Thread(() =>
        {
            var webBrowser = new WebBrowser();
            webBrowser.ScrollBarsEnabled = false;
            webBrowser.DocumentCompleted +=
                webBrowser_DocumentCompleted;
            webBrowser.DocumentText = source;
            Application.Run();
        });
        th.SetApartmentState(ApartmentState.STA);
        th.Start();
    }

    static void 
        webBrowser_DocumentCompleted(
        object sender, 
        WebBrowserDocumentCompletedEventArgs e)
    {
        var webBrowser = (WebBrowser)sender;
        using (Bitmap bitmap = 
            new Bitmap(
                webBrowser.Width, 
                webBrowser.Height))
        {
            webBrowser
                .DrawToBitmap(
                bitmap, 
                new System.Drawing
                    .Rectangle(0, 0, bitmap.Width, bitmap.Height));
            bitmap.Save(@"filename.jpg", 
                System.Drawing.Imaging.ImageFormat.Jpeg);
        }
    }
}

Note: Credits should go to Hans Passant for his excellent answer on the question WebBrowser Control in a new thread which inspired this solution.

Definitely compact is the best approach for solving this task. However, we can achieve the same result just with a simple subtraction:

[1, nil, 3, nil, nil] - [nil]
 => [1, 3]

jsPDF is able to use plugins. In order to enable it to print HTML, you have to include certain plugins and therefore have to do the following:

1. Go to https://github.com/MrRio/jsPDF and download the latest Version.
2. Include the following Scripts in your project:
   • jspdf.js
   • jspdf.plugin.from_html.js
   • jspdf.plugin.split_text_to_size.js
   • jspdf.plugin.standard_fonts_metrics.js

If you want to ignore certain elements, you have to mark them with an ID, which you can then ignore in a special element handler of jsPDF. Therefore your HTML should look like this:

<!DOCTYPE html>
<html>
  <body>
    <p id="ignorePDF">don't print this to pdf</p>
    <div>
      <p><font size="3" color="red">print this to pdf</font></p>
    </div>
  </body>
</html>

Then you use the following JavaScript code to open the created PDF in a PopUp:

var doc = new jsPDF();          
var elementHandler = {
  '#ignorePDF': function (element, renderer) {
    return true;
  }
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(
    source,
    15,
    15,
    {
      'width': 180,'elementHandlers': elementHandler
    });

doc.output("dataurlnewwindow");

For me this created a nice and tidy PDF that only included the line 'print this to pdf'.

Please note that the special element handlers only deal with IDs in the current version, which is also stated in a GitHub Issue. It states:

Because the matching is done against every element in the node tree, my desire was to make it as fast as possible. In that case, it meant "Only element IDs are matched" The element IDs are still done in jQuery style "#id", but it does not mean that all jQuery selectors are supported.

Therefore replacing '#ignorePDF' with class selectors like '.ignorePDF' did not work for me. Instead you will have to add the same handler for each and every element, which you want to ignore like:

var elementHandler = {
  '#ignoreElement': function (element, renderer) {
    return true;
  },
  '#anotherIdToBeIgnored': function (element, renderer) {
    return true;
  }
};

From the examples it is also stated that it is possible to select tags like 'a' or 'li'. That might be a little bit to unrestrictive for the most usecases though:

We support special element handlers. Register them with jQuery-style ID selector for either ID or node name. ("#iAmID", "div", "span" etc.) There is no support for any other type of selectors (class, of compound) at this time.

One very important thing to add is that you lose all your style information (CSS). Luckily jsPDF is able to nicely format h1, h2, h3 etc., which was enough for my purposes. Additionally it will only print text within text nodes, which means that it will not print the values of textareas and the like. Example:

<body>
  <ul>
    <!-- This is printed as the element contains a textnode -->        
    <li>Print me!</li>
  </ul>
  <div>
    <!-- This is not printed because jsPDF doesn't deal with the value attribute -->
    <input type="textarea" value="Please print me, too!">
  </div>
</body>

You can simply use Arrays.sort()

array.sort((a,b) => a.title.rendered.localeCompare(b.title.rendered));

Working Example :

var array = [{"id":3645,"date":"2018-07-05T13:13:37","date_gmt":"2018-07-05T13:13:37","guid":{"rendered":""},"modified":"2018-07-05T13:13:37","modified_gmt":"2018-07-05T13:13:37","slug":"vpwin","status":"publish","type":"matrix","link":"","title":{"rendered":"VPWIN"},"content":{"rendered":"","protected":false},"featured_media":0,"parent":0,"template":"","better_featured_image":null,"acf":{"domain":"SMB","ds_rating":"3","dt_rating":""},},{"id":3645,"date":"2018-07-05T13:13:37","date_gmt":"2018-07-05T13:13:37","guid":{"rendered":""},"modified":"2018-07-05T13:13:37","modified_gmt":"2018-07-05T13:13:37","slug":"vpwin","status":"publish","type":"matrix","link":"","title":{"rendered":"adfPWIN"},"content":{"rendered":"","protected":false},"featured_media":0,"parent":0,"template":"","better_featured_image":null,"acf":{"domain":"SMB","ds_rating":"3","dt_rating":""}},{"id":3645,"date":"2018-07-05T13:13:37","date_gmt":"2018-07-05T13:13:37","guid":{"rendered":""},"modified":"2018-07-05T13:13:37","modified_gmt":"2018-07-05T13:13:37","slug":"vpwin","status":"publish","type":"matrix","link":"","title":{"rendered":"bbfPWIN"},"content":{"rendered":"","protected":false},"featured_media":0,"parent":0,"template":"","better_featured_image":null,"acf":{"domain":"SMB","ds_rating":"3","dt_rating":""}}];_x000D_
array.sort((a,b) => a.title.rendered.localeCompare(b.title.rendered));_x000D_
 _x000D_
 console.log(array);

If anyone is running into this in 2018, the thing that finally worked for me was to go into the my-app I created with ng new my-app, and THEN run ng serve This has to do with it needing the dependencies and devDependencies located in my-app/package.json instead of root/package.json. They are two separate files.

Even if I copied the all the dependencies to my root folder's package.json, I would also have to go in and manually change the path locations for the config files and such to go into my-app/*. It is much easier to just go into my-app/ and run ng serve there to let it all work like it is supposed to.

So these steps should work for anyone:

rm -rf <previous-app> // Whatever your previous app was called, if you had one.

sudo rm -rf node_modules

rm -f package-lock.json

npm install

ng new my-app

cd my-app

ng serve

Create a Random instance:

Random rnd = new Random();

Fetch a random string:

string s = arraylist[rnd.Next(arraylist.Count)];

Remember though, that if you do this frequently you should re-use the Random object. Put it as a static field in the class so it's initialized only once and then access it.

When you upgrade to the latest version of the gradle in the gradle-wrapper.properties file i.e. distributionUrl=https\://services.gradle.org/distributions/gradle-6.6.1-bin.zip please do not forget to change the gradle version in the build.gradle file as well

wrapper {
    gradleVersion = '6.6.1'
}

I'm trying to answer in general, not related to this question, this error generally occurs when you break a syntax in half and forget the other half. Like in my case it was:

try :
 ....

since python was searching for a

except Exception as e:
 ....

but it encountered an EOF (End Of File), hence the error. See if you can find any incomplete syntax in your code.

You can get the index of the current iteration by adding another parameter to your iterator function, e.g.

_.each(['foo', 'bar', 'baz'], function (val, i) {
    console.log(i + ": " + val); // 0: foo, 1: bar, 2: baz
});

Date and time input is accepted in almost any reasonable format, including ISO 8601, SQL-compatible, traditional POSTGRES, and others. For some formats, ordering of month, day, and year in date input is ambiguous and there is support for specifying the expected ordering of these fields.

In other words: just write anything and it will work.

Or check this table with all the unambiguous formats.

For SQL Server 2016 and newer, and Azure SQL Database, use the built in AT TIME ZONE statement.

For older editions of SQL Server, you can use my SQL Server Time Zone Support project to convert between IANA standard time zones, as listed here.

UTC to Local is like this:

SELECT Tzdb.UtcToLocal('2015-07-01 00:00:00', 'America/Los_Angeles')

Local to UTC is like this:

SELECT Tzdb.LocalToUtc('2015-07-01 00:00:00', 'America/Los_Angeles', 1, 1)

The numeric options are flag for controlling the behavior when the local time values are affected by daylight saving time. These are described in detail in the project's documentation.

Install popper.js with spesific version number like this:

bower install popper.js@^1.16.0

Now u can find dist folder and popper.min.js file.

Yes you should, As it locks the version of each and every package which you are using in your app and when you run npm install it install the exact same version in your node_modules folder. This is important becasue let say you are using bootstrap 3 in your application and if there is no package-lock.json file in your project then npm install will install bootstrap 4 which is the latest and you whole app ui will break due to version mismatch.

If you've got VS2010 installed, you ought to find a .NET 4.0 gacutil at

C:\Program Files\Microsoft SDKs\Windows\v7.0A\bin\NETFX 4.0 Tools

The 7.0A Windows SDK should have been installed alongside VS2010 - 6.0A will have been installed with VS2008, and hence won't have .NET 4.0 support.

For a binary search tree, an inorder traversal will return elements ... in order.

Just do an inorder traversal and stop after traversing k elements.

O(1) for constant values of k.

Short, simple, reliable :

function secondsToDHMS($seconds) {
    $s = (int)$seconds;
    return sprintf('%d:%02d:%02d:%02d', $s/86400, $s/3600%24, $s/60%60, $s%60);
}

Try this

var today = new Date()
var priorDate = new Date().setDate(today.getDate()-30)

As noted by @Neel, this method returns in Javascript Timestamp format. To convert it back to date object, you need to pass the above to a new Date object; new Date(priorDate).

The answer of ADTC works fine, but I've find another solution, so I post it here if someone wants something different.

I think ADTC's solution is better, but mine's also works.

Here is the other solution I found

select p.name
from   person p
where  instr(p.name,chr(8211)) > 0; --contains the character chr(8211) 
                                    --at least 1 time

Thank you.

Updates regarding answers suggesting using The Apache Commons Lang's: StringEscapeUtils.unescapeJava() - it was deprecated,

Deprecated. as of 3.6, use commons-text StringEscapeUtils instead

The replacement is Apache Commons Text's StringEscapeUtils.unescapeJava()

$myVar = $someVar ?? 42;

Is equivalent to :

$myVar = isset($someVar) ? $someVar : 42;

For constants, the behaviour is the same when using a constant that already exists :

define("FOO", "bar");
define("BAR", null);

$MyVar = FOO ?? "42";
$MyVar2 = BAR ?? "42";

echo $MyVar . PHP_EOL;  // bar
echo $MyVar2 . PHP_EOL; // 42

However, for constants that don't exist, this is different :

$MyVar3 = IDONTEXIST ?? "42"; // Raises a warning
echo $MyVar3 . PHP_EOL;       // IDONTEXIST

Warning: Use of undefined constant IDONTEXIST - assumed 'IDONTEXIST' (this will throw an Error in a future version of PHP)

Php will convert the non-existing constant to a string.

You can use constant("ConstantName") that returns the value of the constant or null if the constant doesn't exist, but it will still raise a warning. You can prepended the function with the error control operator @ to ignore the warning message :

$myVar = @constant("IDONTEXIST") ?? "42"; // No warning displayed anymore
echo $myVar . PHP_EOL; // 42