I use this code (I use Python 3):

import csv
import io
import requests

url = "http://samplecsvs.s3.amazonaws.com/Sacramentorealestatetransactions.csv"
r = requests.get(url)
r.encoding = 'utf-8'  # useful if encoding is not sent (or not sent properly) by the server
csvio = io.StringIO(r.text, newline="")
data = []
for row in csv.DictReader(csvio):
    data.append(row)

Floating point numbers in C use IEEE 754 encoding.

This type of encoding uses a sign, a significand, and an exponent.

Because of this encoding, many numbers will have small changes to allow them to be stored.

Also, the number of significant digits can change slightly since it is a binary representation, not a decimal one.

Single precision (float) gives you 23 bits of significand, 8 bits of exponent, and 1 sign bit.

Double precision (double) gives you 52 bits of significand, 11 bits of exponent, and 1 sign bit.

I am a little late to this thread but in fact there is direct support for the like operator in MS SQL server.

As documented in LIKE help if the datatype is not a string it is attempted to convert it to a string. And as documented in cast\convert documentation:

default datetime conversion to string is type 0 (,100) which is mon dd yyyy hh:miAM (or PM).

If you have a date like this in the DB:

2015-06-01 11:52:59.057

and you do queries like this:

select * from wws_invoice where invdate like 'Jun%'
select * from wws_invoice where invdate like 'Jun 1%'
select * from wws_invoice where invdate like 'Jun 1 %'
select * from wws_invoice where invdate like 'Jun 1 2015:%'
select * from wws_invoice where invdate like 'Jun ? 2015%'
...
select * from wws_invoice where invdate like 'Jun 1 2015 11:52AM'

you get that row.

However, this date format suggests that it is a DateTime2, then documentation says:

21 or 121 -- ODBC canonical (with milliseconds) default for time, date, datetime2, and datetimeoffset. -- yyyy-mm-dd hh:mi:ss.mmm(24h)

That makes it easier and you can use:

select * from wws_invoice where invdate like '2015-06-01%'

and get the invoice record. Here is a demo code:

DECLARE @myDates TABLE (myDate DATETIME2);
INSERT INTO @myDates (myDate)
VALUES
('2015-06-01 11:52:59.057'),
('2015-06-01 11:52:59.054'),
('2015-06-01 13:52:59.057'),
('2015-06-01 14:52:59.057');

SELECT * FROM @myDates WHERE myDate LIKE '2015-06-01%';
SELECT * FROM @myDates WHERE myDate LIKE '2015-06-01 11%';
SELECT * FROM @myDates WHERE myDate LIKE '2015-06-01 11:52:59%';
SELECT * FROM @myDates WHERE myDate LIKE '2015-06-01 11:52:59.054%';

Doing datetime searches in SQL server without any conversion to string has always been problematic. Getting each date part is an overkill (which unlikely would use an index). Probably a better way when you don't use string conversion would be to use range checks. ie:

select * from record 
where register_date >= '20091010' and register_date < '20091011';

I would recommend using WordPress custom fields to store eligible postcodes for each product. add_post_meta() and update_post_meta are what you're looking for. It's not recommended to alter the default WordPress table structure. All postmetas are inserted in wp_postmeta table. You can find the corresponding products within wp_posts table.

The question is old now.

But if somebody looks here the trick in the current version is to use the nav-stack class, like so:

<nav>
  <ul class="nav nav-pills nav-stacked span2">
    <li><a href="#">Home</a></li>
    <li><a href="#">About</a></li>
    <li><a href="#">Contact</a></li>
  </ul>
</nav>

fstream are great but I will go a little deeper and tell you about RAII.

The problem with a classic example is that you are forced to close the file by yourself, meaning that you will have to bend your architecture to this need. RAII makes use of the automatic destructor call in C++ to close the file for you.

Update: seems that std::fstream already implements RAII so the code below is useless. I'll keep it here for posterity and as an example of RAII.

class FileOpener
{
public:
    FileOpener(std::fstream& file, const char* fileName): m_file(file)
    { 
        m_file.open(fileName); 
    }
    ~FileOpeneer()
    { 
        file.close(); 
    }

private:
    std::fstream& m_file;
};

You can now use this class in your code like this:

int nsize = 10;
char *somedata;
ifstream myfile;
FileOpener opener(myfile, "<path to file>");
myfile.read(somedata,nsize);
// myfile is closed automatically when opener destructor is called

Learning how RAII works can save you some headaches and some major memory management bugs.

For versions less than 5:

Option 1 -- quick hack:

Change the cell type to raw then back to code: EscRY will discard the output.

Option 2 -- custom shortcut (without GUI):

For this, you need to edit the custom.js file which is typically located at ~/.jupyter/custom/custom.js (if it doesn't exist, create it).

In there, you have to add

require(['base/js/namespace']) {
    // setup 'ctrl-l' as shortcut for clearing current output
    Jupyter.keyboard_manager.command_shortcuts
           .add_shortcut('ctrl-l', 'jupyter-notebook:clear-cell-output');
}

You can add shortcut there for all the fancy things you like, since the 2nd argument can be a function (docs)

If you want mappings for other standard commands, you can dump a list of all available commands by running the following in your notebook:

from IPython.core.display import Javascript

js = """
  var jc_html = "";
  var jc_array = Object.keys(IPython.notebook.keyboard_manager.command_shortcuts.actions._actions);
  for (var i=0;i<jc_array.length;i++) {
    jc_html = jc_html + jc_array[i] + "<br >";
  }
  element.html(jc_html);
  """

Javascript(data=js, lib=None, css=None)

Awesome answers I found here and I also tried this return statement see StatusCode(whatever code you wish) and it worked!!!

return Ok(new {
                    Token = new JwtSecurityTokenHandler().WriteToken(token),
                    Expiration = token.ValidTo,
                    username = user.FullName,
                    StatusCode = StatusCode(200)
                });

As mentioned here: Re: BUG #4243: Idle in transaction it is probably best to check your pg_locks table to see what is being locked and that might give you a better clue where the problem lies.

start from

JSONArray deletedtrs_array = sync_reponse.getJSONArray("deletedtrs");

you can iterate through JSONArray and use values directly or create Objects of your own type
which will handle data fields inside of each deletedtrs_array member

Iterating

for(int i = 0; i < deletedtrs_array.length(); i++){
    JSONObject obj = deletedtrs_array.getJSONObject(i);
    Log.d("Item no."+i, obj.toString());

    // create object of type DeletedTrsWrapper like this
    DeletedTrsWrapper dtw = new DeletedTrsWrapper(obj);

    // String company_id = obj.getString("companyid");
    // String username = obj.getString("username");
    // String date = obj.getString("date");
    // int report_id = obj.getInt("reportid");
}

Own object type

class DeletedTrsWrapper {

    public String company_id;
    public String username;
    public String date;
    public int report_id;

    public DeletedTrsWrapper(JSONObject obj){
        company_id = obj.getString("companyid");
        username = obj.getString("username");
        date = obj.getString("date");
        report_id = obj.getInt("reportid");
    }
}

The header function is used to send HTTP response headers back to the user (i.e. you cannot use it to create request headers.

May I ask why are you doing this? Why simulate a POST request when you can just right there and then act on the data someway? I'm assuming of course script.php resides on your server.

To create a POST request, open a up a TCP connection to the host using fsockopen(), then use fwrite() on the handler returned from fsockopen() with the same values you used in the header functions in the OP. Alternatively, you can use cURL.

First you must select the parent element and set :nth-of-type(n) for the parent and then select the element you want. something like this :

#topmenu li:nth-of-type(2) ul.childUl {

This will select the second submenu from topmenu. #topmenu li is the parent element.

HTML:

<ul id="topmenu">
    <li>
        <ul class="childUl">
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </li>
    <li>
        <ul class="childUl">
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </li>
    <li>
        <ul class="childUl">
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </li>

If you don't feel like dropping and recreating the whole shebang just to reload your data, you could use MyModel.destroy_all (or delete_all) in the seed.db file to clean out a table before your MyModel.create!(...) statements load the data. Then, you can redo the db:seed operation over and over. (Obviously, this only affects the tables you've loaded data into, not the rest of them.)

There's a "dirty hack" at https://stackoverflow.com/a/14957893/4553442 to add a "de-seeding" operation similar to migrating up and down...

Adjusting the currentScale attribute works in IE ( I tested with IE 11), but not in Chrome.

You can convert it to a timedelta with a day precision. To extract the integer value of days you divide it with a timedelta of one day.

>>> x = np.timedelta64(2069211000000000, 'ns')
>>> days = x.astype('timedelta64[D]')
>>> days / np.timedelta64(1, 'D')
23

Or, as @PhillipCloud suggested, just days.astype(int) since the timedelta is just a 64bit integer that is interpreted in various ways depending on the second parameter you passed in ('D', 'ns', ...).

You can find more about it here.

>>> d = {'1': 'one', '3': 'three', '2': 'two', '5': 'five', '4': 'four'}
>>> 'one' in d.values()
True

Out of curiosity, some comparative timing:

>>> T(lambda : 'one' in d.itervalues()).repeat()
[0.28107285499572754, 0.29107213020324707, 0.27941107749938965]
>>> T(lambda : 'one' in d.values()).repeat()
[0.38303399085998535, 0.37257885932922363, 0.37096405029296875]
>>> T(lambda : 'one' in d.viewvalues()).repeat()
[0.32004380226135254, 0.31716084480285645, 0.3171098232269287]

EDIT: And in case you wonder why... the reason is that each of the above returns a different type of object, which may or may not be well suited for lookup operations:

>>> type(d.viewvalues())
<type 'dict_values'>
>>> type(d.values())
<type 'list'>
>>> type(d.itervalues())
<type 'dictionary-valueiterator'>

EDIT2: As per request in comments...

>>> T(lambda : 'four' in d.itervalues()).repeat()
[0.41178202629089355, 0.3959040641784668, 0.3970959186553955]
>>> T(lambda : 'four' in d.values()).repeat()
[0.4631338119506836, 0.43541407585144043, 0.4359898567199707]
>>> T(lambda : 'four' in d.viewvalues()).repeat()
[0.43414998054504395, 0.4213531017303467, 0.41684913635253906]

Haha, Lovely - let me also include my version of stackPusher's code :). We are using this functionality in C#. Works fine for all Excel ranges.:

public static String ConvertToLiteral(int number)
{
        int firstLetter = (((number - 27) / (26 * 26))) % 26;
        int middleLetter = ((((number - 1) / 26)) % 26);

        int lastLetter = (number % 26);
        firstLetter = firstLetter == 0 ? 26 : firstLetter;
        middleLetter = middleLetter == 0 ? 26 : middleLetter;
        lastLetter = lastLetter == 0 ? 26 : lastLetter;
        String returnedString = "";
        returnedString = number > 27 * 26 ? (Convert.ToChar(firstLetter + 64).ToString()) : returnedString;
        returnedString += number > 26 ? (Convert.ToChar(middleLetter + 64).ToString()) : returnedString;
        returnedString += lastLetter >= 0 ? (Convert.ToChar(lastLetter + 64).ToString()) : returnedString;
        return returnedString;
}

The values of form elements including type='hidden' are submitted to the server when the form is posted. input type="hidden" values are not visible in the page. Maintaining User IDs in hidden fields, for example, is one of the many uses.

SO uses a hidden field for the upvote click.

<input value="16293741" name="postId" type="hidden">

Using this value, the server-side script can store the upvote.

You can simply do :-

{{"<li>Something</li>".repeat(5)}}

My site configuration file is example.conf in sites-available folder So you can create a symbolic link as

ln -s /etc/nginx/sites-available/example.conf /etc/nginx/sites-enabled/

for get week number in jalai calendar you can use this:

$weeknumber = date("W"); //number week in year
$dayweek = date("w"); //number day in week
if ($dayweek == "6")
{
    $weeknumberint = (int)$weeknumber;
    $date2int++; 
    $weeknumber = (string)$date2int;
}

echo $date2;

result:

15

week number change in saturday

If optimal performance is not a requirement and you just want something dead simple, you can define a basic function to test each character using the string class's built in "isspace" method:

def remove_space(input_string):
    no_white_space = ''
    for c in input_string:
        if not c.isspace():
            no_white_space += c
    return no_white_space

Building the no_white_space string this way will not have ideal performance, but the solution is easy to understand.

>>> remove_space('strip my spaces')
'stripmyspaces'

If you don't want to define a function, you can convert this into something vaguely similar with list comprehension. Borrowing from the top answer's join solution:

>>> "".join([c for c in "strip my spaces" if not c.isspace()])
'stripmyspaces'

We can use Angular event bindings to respond to any DOM event. The syntax is simple. We surround the DOM event name in parentheses and assign a quoted template statement to it. -- reference

Since change is on the list of standard DOM events, we can use it:

(change)="saverange()"

In your particular case, since you're using NgModel, you could break up the two-way binding like this instead:

[ngModel]="range" (ngModelChange)="saverange($event)"

Then

saverange(newValue) {
  this.range = newValue;
  this.Platform.ready().then(() => {
     this.rootRef.child("users").child(this.UserID).child('range').set(this.range)
  })
} 

However, with this approach saverange() is called with every keystroke, so you're probably better off using (change).

Install-Package System.Drawing.Common

var map = {'myKey1':myObj1, 'mykey2':myObj2};
// You don't need any get function, just use
map['mykey1']

The reason to prefer Promises over callback functions is to have multiple callbacks and to avoid the problems like Callback Hell.

Callback hell (for more details, refer http://callbackhell.com/): Asynchronous javascript, or javascript that uses callbacks, is hard to get right intuitively. A lot of code ends up looking like this:

asyncCall(function(err, data1){
    if(err) return callback(err);       
    anotherAsyncCall(function(err2, data2){
        if(err2) return calllback(err2);
        oneMoreAsyncCall(function(err3, data3){
            if(err3) return callback(err3);
            // are we done yet?
        });
    });
});

With Promises above code can be rewritten as below:

asyncCall()
.then(function(data1){
    // do something...
    return anotherAsyncCall();
})
.then(function(data2){
    // do something...  
    return oneMoreAsyncCall();    
})
.then(function(data3){
    // the third and final async response
})
.fail(function(err) {
    // handle any error resulting from any of the above calls    
})
.done();

Here is my Extension method. It's very efficient and it's lazy.

Usage:

var checkBoxes = tableLayoutPanel1.FindChildControlsOfType<CheckBox>();

foreach (var checkBox in checkBoxes)
{
    checkBox.Checked = false;
}

The code is:

public static IEnumerable<TControl> FindChildControlsOfType<TControl>(this Control control) where TControl : Control
    {
        foreach (var childControl in control.Controls.Cast<Control>())
        {
            if (childControl.GetType() == typeof(TControl))
            {
                yield return (TControl)childControl;
            }
            else
            {
                foreach (var next in FindChildControlsOfType<TControl>(childControl))
                {
                    yield return next;
                }
            }
        }
    }

You can simply define a style for links, which would override a:hover, a:visited etc.:

a {
  color: blue;
  text-decoration: none; /* no underline */
}

You can also use the inherit value if you want to use attributes from parent styles instead:

body {
  color: blue;
}
a {
  color: inherit; /* blue colors for links too */
  text-decoration: inherit; /* no underline */
}

So as to have another possibility¹ to find the files that are executable by the current user:

find . -type f -exec test -x {} \; -print

(the test command here is the one found in PATH, very likely /usr/bin/test, not the builtin).

¹ Only use this if the -executable flag of find is not available! this is subtly different from the -perm +111 solution.

Nice answers abowe, but don't forget one IMPORTANT thing - they provide different results!

  var idList = new int[1, 2, 2, 2, 2]; // same user is selected 4 times
  var userProfiles = _dataContext.UserProfile.Where(e => idList.Contains(e)).ToList();

This will return 2 rows from DB (and this could be correct, if you just want a distinct sorted list of users)

BUT in many cases, you could want an unsorted list of results. You always have to think about it like about a SQL query. Please see the example with eshop shopping cart to illustrate what's going on:

  var priceListIDs = new int[1, 2, 2, 2, 2]; // user has bought 4 times item ID 2
  var shoppingCart = _dataContext.ShoppingCart
                     .Join(priceListIDs, sc => sc.PriceListID, pli => pli, (sc, pli) => sc)
                     .ToList();

This will return 5 results from DB. Using 'contains' would be wrong in this case.

The most efficient solution is the strtok function:

strtok($mystring, '/')

NOTE: In case of more than one character to split with the results may not meet your expectations e.g. strtok("somethingtosplit", "to") returns s because it is splitting by any single character from the second argument (in this case o is used).

@friek108 thanks for pointing that out in your comment.

For example:

$mystring = 'home/cat1/subcat2/';
$first = strtok($mystring, '/');
echo $first; // home

and

$mystring = 'home';
$first = strtok($mystring, '/');
echo $first; // home

Copy and paste this into your html:

<input type="file" id="files" name="files[]" multiple />
<output id="list"></output>

<script>
function handleFileSelect(evt) {
var files = evt.target.files; // FileList object

// files is a FileList of File objects. List some properties.
var output = [];
for (var i = 0, f; f = files[i]; i++) {
  output.push('<li><strong>', escape(f.name), '</strong> (', f.type || 'n/a', ') - ',
              f.size, ' bytes, last modified: ',
              f.lastModifiedDate ? f.lastModifiedDate.toLocaleDateString() : 'n/a',
              '</li>');
}
document.getElementById('list').innerHTML = '<ul>' + output.join('') + '</ul>';
}

This comes to you, through me, from this webpage: http://www.html5rocks.com/en/tutorials/file/dndfiles/

Two problems:

1 - You never told Git to start tracking any file

You write that you ran

git init
git commit -m "first commit"

and that, at that stage, you got

nothing added to commit but untracked files present (use "git add" to track).

Git is telling you that you never told it to start tracking any files in the first place, and it has nothing to take a snapshot of. Therefore, Git creates no commit. Before attempting to commit, you should tell Git (for instance):

Hey Git, you see that README.md file idly sitting in my working directory, there? Could you put it under version control for me? I'd like it to go in my first commit/snapshot/revision...

For that you need to stage the files of interest, using

git add README.md

before running

git commit -m "some descriptive message"

2 - You haven't set up the remote repository

You then ran

git remote add origin https://github.com/VijayNew/NewExample.git

After that, your local repository should be able to communicate with the remote repository that resides at the specified URL (https://github.com/VijayNew/NewExample.git)... provided that remote repo actually exists! However, it seems that you never created that remote repo on GitHub in the first place: at the time of writing this answer, if I try to visit the correponding URL, I get

Before attempting to push to that remote repository, you need to make sure that the latter actually exists. So go to GitHub and create the remote repo in question. Then and only then will you be able to successfully push with

git push -u origin master

You can either:

• Use XmlSerializer class
• Use XmlDocument class

Examples are on the msdn pages provided

I would do the following (copy-paste the whole stuff below into immediate window / query window and execute)

DECLARE @foo int
DECLARE @unclefoo smalldatetime
SET @foo = DATEDIFF(minute, CAST('2013.01.01 00:00:00' AS datetime),CAST('2013.01.01 00:03:59' AS datetime)) -- AS 'Duration (Minutes)'

SET @unclefoo = DATEADD(minute, @foo, '2000.01.01')

SELECT CAST(@unclefoo AS time)

@foo stores the value you generate in your question. The "trick" comes by then:
we create a smalldatetime variable (in my case it's yyyy.mm.dd format) and increment it with your int value, then display (or store if you want) the time part only.

newaxis object in the selection tuple serves to expand the dimensions of the resulting selection by one unit-length dimension.

It is not just conversion of row matrix to column matrix.

Consider the example below:

In [1]:x1 = np.arange(1,10).reshape(3,3)
       print(x1)
Out[1]: array([[1, 2, 3],
               [4, 5, 6],
               [7, 8, 9]])

Now lets add new dimension to our data,

In [2]:x1_new = x1[:,np.newaxis]
       print(x1_new)
Out[2]:array([[[1, 2, 3]],

              [[4, 5, 6]],

              [[7, 8, 9]]])

You can see that newaxis added the extra dimension here, x1 had dimension (3,3) and X1_new has dimension (3,1,3).

How our new dimension enables us to different operations:

In [3]:x2 = np.arange(11,20).reshape(3,3)
       print(x2)
Out[3]:array([[11, 12, 13],
              [14, 15, 16],
              [17, 18, 19]]) 

Adding x1_new and x2, we get:

In [4]:x1_new+x2
Out[4]:array([[[12, 14, 16],
               [15, 17, 19],
               [18, 20, 22]],

              [[15, 17, 19],
               [18, 20, 22],
               [21, 23, 25]],

              [[18, 20, 22],
               [21, 23, 25],
               [24, 26, 28]]])

Thus, newaxis is not just conversion of row to column matrix. It increases the dimension of matrix, thus enabling us to do more operations on it.

First the good news. This code does what you want (please note the "line numbers")

Sub a()
 10:    On Error GoTo ErrorHandler
 20:    DivisionByZero = 1 / 0
 30:    Exit Sub
 ErrorHandler:
 41: If Err.Number <> 0 Then
 42:    Msg = "Error # " & Str(Err.Number) & " was generated by " _
         & Err.Source & Chr(13) & "Error Line: " & Erl & Chr(13) & Err.Description
 43:    MsgBox Msg, , "Error", Err.HelpFile, Err.HelpContext
 44:    End If
 50:    Resume Next
 60: End Sub

When it runs, the expected MsgBox is shown:

And now the bad news:
Line numbers are a residue of old versions of Basic. The programming environment usually took charge of inserting and updating them. In VBA and other "modern" versions, this functionality is lost.

However, Here there are several alternatives for "automatically" add line numbers, saving you the tedious task of typing them ... but all of them seem more or less cumbersome ... or commercial.

HTH!

Found some good answer here regarding reading from console, here another way use 'Scanner' to read from console:

import java.util.Scanner;
String data;

Scanner scanInput = new Scanner(System.in);
data= scanInput.nextLine();

scanInput.close();            
System.out.println(data);

Here is what worked for me (sugested by soulBit):

1) Restart using restart from the file menu
2) Once it started again, manually close and open it.

This is the simplest solution ever and it completely removes the annoying thing.

Update: Ms SQL Server 2017+, Azure SQL Database

You can use: STRING_AGG.

Usage is pretty simple for OP's request:

SELECT id, STRING_AGG(name, ', ') AS names
FROM some_table
GROUP BY id

Read More

Well my old non-answer got rightfully deleted (left in-tact below), but if anyone happens to land here in the future, there is good news. They have implimented STRING_AGG() in Azure SQL Database as well. That should provide the exact functionality originally requested in this post with native and built in support. @hrobky mentioned this previously as a SQL Server 2016 feature at the time.

--- Old Post: Not enough reputation here to reply to @hrobky directly, but STRING_AGG looks great, however it is only available in SQL Server 2016 vNext currently. Hopefully it will follow to Azure SQL Datababse soon as well..

Date d1 = new SimpleDateFormat("yyyy-M-dd").parse((String) request.
            getParameter(date1));
Date d2 = new SimpleDateFormat("yyyy-M-dd").parse((String) request.
            getParameter(date2));

long diff = d2.getTime() - d1.getTime();

System.out.println("Difference between  " + d1 + " and "+ d2+" is "
        + (diff / (1000 * 60 * 60 * 24)) + " days.");

BigInteger.toString(radix) will do what you want. Just pass in a radix of 2.

static String hexToBin(String s) {
  return new BigInteger(s, 16).toString(2);
}

in your home-dir in file ".gitconfig" add the following

[alias]
sha = rev-parse HEAD

then you will have an easier command to remember:

$ git sha
59fbfdbadb43ad0b6154c982c997041e9e53b600

You should avoid this (at the end of your code):

{?>

and this:

<?php}

You shouldn't put brackets directly close to the open/close php tag, but separate it with a space:

{ ?>
<?php {

also avoid <? and use <?php

Values known at compile time can (and in my opinion should) be marked as constant.

Naming conventions should follow Java ones and should be properly visible when used from Java code (it's somehow hard to achieve with companion objects, but anyway).

The proper constant declarations are:

const val MY_CONST = "something"
const val MY_INT = 1

Here is the correct implementation using numpy (np.log() is the natural logarithm)

import numpy as np
p = 100
r = 0.06 / 12
FV = 4000

n = np.log(1 + FV * r/ p) / np.log(1 + r)

print ("Number of periods = " + str(n))

Output:

Number of periods = 36.55539635919235

char **options[2][100];

declares a size-2 array of size-100 arrays of pointers to pointers to char. You'll want to remove one *. You'll also want to put your string literals in double quotes.

The problem many times occurs with the milliseconds and final microseconds that many times are in 4 or 8 finals. To convert the DATE to ISO 8601 "date(DATE_ISO8601)" these are one of the solutions that works for me:

// In this form it leaves the date as it is without taking the current date as a reference
$dt = new DateTime();
echo $dt->format('Y-m-d\TH:i:s.').substr($dt->format('u'),0,3).'Z';
// return-> 2020-05-14T13:35:55.191Z

// In this form it takes the reference of the current date
echo date('Y-m-d\TH:i:s'.substr((string)microtime(), 1, 4).'\Z');
return-> 2020-05-14T13:35:55.191Z

// Various examples:
$date_in = '2020-05-25 22:12 03.056';
$dt = new DateTime($date_in);
echo $dt->format('Y-m-d\TH:i:s.').substr($dt->format('u'),0,3).'Z';
// return-> 2020-05-25T22:12:03.056Z

//In this form it takes the reference of the current date
echo date('Y-m-d\TH:i:s'.substr((string)microtime(), 1, 4).'\Z',strtotime($date_in));
// return-> 2020-05-25T14:22:05.188Z

?? should be preferred to || because it checks only for nulls and undefined.

All The expressions below are true:

(null || 'x') === 'x' ;
(undefined || 'x') === 'x' ;
//Most of the times you don't want the result below
('' || 'x') === 'x'  ;
(0 || 'x') === 'x' ;
(false || 'x') === 'x' ;
//-----

//Using ?? is preferred
(null ?? 'x') === 'x' ;
(undefined ?? 'x') === 'x' ;
//?? works only for null and undefined, which is in general safer
('' ?? 'x') === '' ;
(0 ?? 'x') === 0 ;
(false ?? 'x') === false ;

Bottom line:

int j=i ?? 10; is perfectly fine to use in javascript also. Just replace int with let.

Asterisk: Check browser compatibility and if you really need to support these other browsers use babel.

You can change your password from settings screen (Ctrl + Alt + S by default) as attached screenshot. After clearing, on the firts remote operation (like pull/push, etc.) it'll ask you your credentials)

IMPORTANT: Take a copy of the file before this operation.

I have just made a solution for it. I made a library for this to do that in a reusable way that's why you don't need to recode in your XML. Here is documentation on how to use it in Java and Kotlin. First, initialize it from an activity from where you want to show the overlay-

AppWaterMarkBuilder.doConfigure()
                .setAppCompatActivity(MainActivity.this)
                .setWatermarkProperty(R.layout.layout_water_mark)
                .showWatermarkAfterConfig();

Then you can hide and show it from anywhere in your app -

  /* For hiding the watermark*/
  AppWaterMarkBuilder.hideWatermark() 

  /* For showing the watermark*/
  AppWaterMarkBuilder.showWatermark() 

Gif preview -

div#a {
  background-image: url('../images/spacer.png');
  background-image: none !important;
}

I use a transparent spacer image in addition to the rule to remove the background image because IE6 seems to ignore the background-image: none even though it is marked !important.

Use this html code it will surely help you

<input type="button" value="NEXT"  onclick="document.write('<?php //call a function here ex- 'fun();' ?>');" />

one limitation is that it is taking more time to run so wait for few seconds it will work

Case 1:

String str = "Good";
str = str + " Morning";

In the above code you create 3 String Objects.

1. "Good" it goes into the String Pool.
2. " Morning" it goes into the String Pool as well.
3. "Good Morning" created by concatenating "Good" and " Morning". This guy goes on the Heap.

Note: Strings are always immutable. There is no, such thing as a mutable String. str is just a reference which eventually points to "Good Morning". You are actually, not working on 1 object. you have 3 distinct String Objects.

Case 2:

StringBuffer str = new StringBuffer("Good"); 
str.append(" Morning");

StringBuffer contains an array of characters. It is not same as a String. The above code adds characters to the existing array. Effectively, StringBuffer is mutable, its String representation isn't.

Here is a slightly different implementation of an AJAX cache as in ehynd's answer.

As noted in fortuneRice's follow-up question, ehynd's implementation didn't actually prevent multiple identical requests if the requests were performed before one of them had returned. That is,

for (var i=0; i<3; i++) {
    getData("xxx");
}

will most likely result in 3 AJAX requests if the result for "xxx" has not already been cached before.

This can be solved by caching the request's Deferreds instead of the result:

var cache = {};

function getData( val ){

    // Return a promise from the cache (if available)
    // or create a new one (a jqXHR object) and store it in the cache.
    var promise = cache[val];
    if (!promise) {
        promise = $.ajax('/foo/', {
            data: { value: val },
            dataType: 'json'
        });
        cache[val] = promise;
    }
    return promise;
}

$.when(getData('foo')).then(function(resp){
    // do something with the response, which may
    // or may not have been retreived using an
    // XHR request.
});

I changed windows password today then Tortoise declined to connect me to SVN server. I got around it by opening a Dos box and doing an "svn co ...". It prompted for the new credential then happily did its work. After that, Tortoise works also.

Since you only said render, yes you can. You could do something along the lines of this:

function render(){_x000D_
 var inp     = document.getElementById("box");_x000D_
 var data = `_x000D_
<svg xmlns="http://www.w3.org/2000/svg" width="${inp.offsetWidth}" height="${inp.offsetHeight}">_x000D_
<foreignObject width="100%" height="100%">_x000D_
<div xmlns="http://www.w3.org/1999/xhtml" _x000D_
style="font-family:monospace;font-style: normal; font-variant: normal; font-size:13.3px;padding:2px;;">_x000D_
${inp.value} <i style="color:red">cant touch this</i>_x000D_
</div>_x000D_
</foreignObject>_x000D_
</svg>`;_x000D_
 var blob = new Blob( [data], {type:'image/svg+xml'} );_x000D_
 var url=URL.createObjectURL(blob);_x000D_
 inp.style.backgroundImage="url("+URL.createObjectURL(blob)+")";_x000D_
 }_x000D_
 onload=function(){_x000D_
  render();_x000D_
  ro = new ResizeObserver(render);_x000D_
 ro.observe(document.getElementById("box"));_x000D_
 }

#box{_x000D_
  color:transparent;_x000D_
  caret-color: black;_x000D_
  font-style: normal;/*must be same as in the svg for caret to align*/_x000D_
  font-variant: normal; _x000D_
  font-size:13.3px;_x000D_
  padding:2px;_x000D_
  font-family:monospace;_x000D_
}

<textarea id="box" oninput="render()">you can edit me!</textarea>

I have been struggling for days finally the solution which worked for me is given below. I had to make the window.print() for PDF in new window needs to work.

 var xhr = new XMLHttpRequest();
      xhr.open('GET', pdfUrl, true);
      xhr.responseType = 'blob';

      xhr.onload = function(e) {
        if (this['status'] == 200) {          
          var blob = new Blob([this['response']], {type: 'application/pdf'});
          var url = URL.createObjectURL(blob);
          var printWindow = window.open(url, '', 'width=800,height=500');
          printWindow.print()
        }
      };

      xhr.send();

Some notes on loading PDF & printing in a new window.

• Loading pdf in a new window via an iframe will work, but the print will not work if url is an external url.
• Browser pop ups must be allowed, then only it will work.
• If you try to load iframe from external url and try window.print() you will get empty print or elements which excludes iframe. But you can trigger print manually, which will work.

It can also be solved using the following query along with other answers.

WITH purchase_data AS (
        SELECT address_id, purchased_at, product_id,
                row_number() OVER (PARTITION BY address_id ORDER BY purchased_at DESC) AS row_number
        FROM purchases
        WHERE product_id = 1)
SELECT address_id, purchased_at, product_id
FROM purchase_data where row_number = 1

A.) The command is NOT EXISTS, you're missing the 'S'.

B.) Use NOT IN instead

SELECT ip 
  FROM login_log 
  WHERE ip NOT IN (
    SELECT ip
    FROM ip_location
  )
;

When you are running a python script on windows in subprocess you should use python in front of the script name. Try:

process = subprocess.Popen("python /the/script.py")

C# does not have a message box that will gather input, but you can use the Visual Basic input box instead.

If you add a reference to "Microsoft Visual Basic .NET Runtime" and then insert:

using Microsoft.VisualBasic;

You can do the following:

List<string> responses = new List<string>();
string response = "";

while(!(response = Interaction.InputBox("Please enter your information",
                                        "Window Title",
                                        "Default Text",
                                        xPosition,
                                        yPosition)).equals(""))
{
   responses.Add(response);
}

responses.ToArray();

When is lexing enough, when do you need EBNF?

EBNF really doesn't add much to the power of grammars. It's just a convenience / shortcut notation / "syntactic sugar" over the standard Chomsky's Normal Form (CNF) grammar rules. For example, the EBNF alternative:

S --> A | B

you can achieve in CNF by just listing each alternative production separately:

S --> A      // `S` can be `A`,
S --> B      // or it can be `B`.

The optional element from EBNF:

S --> X?

you can achieve in CNF by using a nullable production, that is, the one which can be replaced by an empty string (denoted by just empty production here; others use epsilon or lambda or crossed circle):

S --> B       // `S` can be `B`,
B --> X       // and `B` can be just `X`,
B -->         // or it can be empty.

A production in a form like the last one B above is called "erasure", because it can erase whatever it stands for in other productions (product an empty string instead of something else).

Zero-or-more repetiton from EBNF:

S --> A*

you can obtan by using recursive production, that is, one which embeds itself somewhere in it. It can be done in two ways. First one is left recursion (which usually should be avoided, because Top-Down Recursive Descent parsers cannot parse it):

S --> S A    // `S` is just itself ended with `A` (which can be done many times),
S -->        // or it can begin with empty-string, which stops the recursion.

Knowing that it generates just an empty string (ultimately) followed by zero or more As, the same string (but not the same language!) can be expressed using right-recursion:

S --> A S    // `S` can be `A` followed by itself (which can be done many times),
S -->        // or it can be just empty-string end, which stops the recursion.

And when it comes to + for one-or-more repetition from EBNF:

S --> A+

it can be done by factoring out one A and using * as before:

S --> A A*

which you can express in CNF as such (I use right recursion here; try to figure out the other one yourself as an exercise):

S --> A S   // `S` can be one `A` followed by `S` (which stands for more `A`s),
S --> A     // or it could be just one single `A`.

Knowing that, you can now probably recognize a grammar for a regular expression (that is, regular grammar) as one which can be expressed in a single EBNF production consisting only from terminal symbols. More generally, you can recognize regular grammars when you see productions similar to these:

A -->        // Empty (nullable) production (AKA erasure).
B --> x      // Single terminal symbol.
C --> y D    // Simple state change from `C` to `D` when seeing input `y`.
E --> F z    // Simple state change from `E` to `F` when seeing input `z`.
G --> G u    // Left recursion.
H --> v H    // Right recursion.

That is, using only empty strings, terminal symbols, simple non-terminals for substitutions and state changes, and using recursion only to achieve repetition (iteration, which is just linear recursion - the one which doesn't branch tree-like). Nothing more advanced above these, then you're sure it's a regular syntax and you can go with just lexer for that.

But when your syntax uses recursion in a non-trivial way, to produce tree-like, self-similar, nested structures, like the following one:

S --> a S b    // `S` can be itself "parenthesized" by `a` and `b` on both sides.
S -->          // or it could be (ultimately) empty, which ends recursion.

then you can easily see that this cannot be done with regular expression, because you cannot resolve it into one single EBNF production in any way; you'll end up with substituting for S indefinitely, which will always add another as and bs on both sides. Lexers (more specifically: Finite State Automata used by lexers) cannot count to arbitrary number (they are finite, remember?), so they don't know how many as were there to match them evenly with so many bs. Grammars like this are called context-free grammars (at the very least), and they require a parser.

Context-free grammars are well-known to parse, so they are widely used for describing programming languages' syntax. But there's more. Sometimes a more general grammar is needed -- when you have more things to count at the same time, independently. For example, when you want to describe a language where one can use round parentheses and square braces interleaved, but they have to be paired up correctly with each other (braces with braces, round with round). This kind of grammar is called context-sensitive. You can recognize it by that it has more than one symbol on the left (before the arrow). For example:

A R B --> A S B

You can think of these additional symbols on the left as a "context" for applying the rule. There could be some preconditions, postconditions etc. For example, the above rule will substitute R into S, but only when it's in between A and B, leaving those A and B themselves unchanged. This kind of syntax is really hard to parse, because it needs a full-blown Turing machine. It's a whole another story, so I'll end here.

The accepted answer is correct. I would like to provide an example to elaborate it a bit to those who aren't familiar with promise.

Example:

In my example, I need to replace the src attributes of img tags with different mirror urls if available before rendering the content.

var img_tags = content.querySelectorAll('img');

function checkMirrorAvailability(url) {

    // blah blah 

    return promise;
}

function changeSrc(success, y, response) {
    if (success === true) {
        img_tags[y].setAttribute('src', response.mirror_url);
    } 
    else {
        console.log('No mirrors for: ' + img_tags[y].getAttribute('src'));
    }
}

var promise_array = [];

for (var y = 0; y < img_tags.length; y++) {
    var img_src = img_tags[y].getAttribute('src');

    promise_array.push(
        checkMirrorAvailability(img_src)
        .then(

            // a callback function only accept ONE argument. 
            // Here, we use  `.bind` to pass additional arguments to the
            // callback function (changeSrc).

            // successCallback
            changeSrc.bind(null, true, y),
            // errorCallback
            changeSrc.bind(null, false, y)
        )
    );
}

$q.all(promise_array)
.then(
    function() {
        console.log('all promises have returned with either success or failure!');
        render(content);
    }
    // We don't need an errorCallback function here, because above we handled
    // all errors.
);

Explanation:

From AngularJS docs:

The then method:

then(successCallback, errorCallback, notifyCallback) – regardless of when the promise was or will be resolved or rejected, then calls one of the success or error callbacks asynchronously as soon as the result is available. The callbacks are called with a single argument: the result or rejection reason.

$q.all(promises)

Combines multiple promises into a single promise that is resolved when all of the input promises are resolved.

The promises param can be an array of promises.

About bind(), More info here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind

HashMap
can contain one null key.

HashMap maintains no order.

TreeMap

TreeMap can not contain any null key.

TreeMap maintains ascending order.

LinkedHashMap

LinkedHashMap can be used to maintain insertion order, on which keys are inserted into Map or it can also be used to maintain an access order, on which keys are accessed.

Examples::

1) HashMap map = new HashMap();

    map.put(null, "Kamran");
    map.put(2, "Ali");
    map.put(5, "From");
    map.put(4, "Dir");`enter code here`
    map.put(3, "Lower");
    for (Map.Entry m : map.entrySet()) {
        System.out.println(m.getKey() + "  " + m.getValue());
    } 

2) TreeMap map = new TreeMap();

    map.put(1, "Kamran");
    map.put(2, "Ali");
    map.put(5, "From");
    map.put(4, "Dir");
    map.put(3, "Lower");
    for (Map.Entry m : map.entrySet()) {
        System.out.println(m.getKey() + "  " + m.getValue());
    }

3) LinkedHashMap map = new LinkedHashMap();

    map.put(1, "Kamran");
    map.put(2, "Ali");
    map.put(5, "From");
    map.put(4, "Dir");
    map.put(3, "Lower");
    for (Map.Entry m : map.entrySet()) {
        System.out.println(m.getKey() + "  " + m.getValue());
    }

Here's how you do it:

Getting the max heap size that the app can use:

Runtime runtime = Runtime.getRuntime();
long maxMemory=runtime.maxMemory();

Getting how much of the heap your app currently uses:

long usedMemory=runtime.totalMemory() - runtime.freeMemory();

Getting how much of the heap your app can now use (available memory) :

long availableMemory=maxMemory-usedMemory;

And, to format each of them nicely, you can use:

String formattedMemorySize=Formatter.formatShortFileSize(context,memorySize); 

You can also use this stored procedure if you only want to truncate all tables in a specific schema:

-- =============================================
-- Author:      Ben de Ridder
-- Create date: 20160513
-- Description: Truncate all tables in schema
-- =============================================
CREATE PROCEDURE TruncateAllTablesInSchema
    @schema nvarchar(50)
AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    DECLARE @table nVARCHAR(255)

    DECLARE db_cursor CURSOR FOR 
        select t.name
          from sys.tables t inner join
               sys.schemas s on 
                    t.schema_id=s.schema_id
         where s.name=@schema
         order by 1

    OPEN db_cursor   

    FETCH NEXT FROM db_cursor INTO @table   

    WHILE @@FETCH_STATUS = 0   
    BEGIN   
           declare @sql nvarchar(1000)

           set @sql = 'truncate table [' + @schema + '].[' + @table + ']'

           exec sp_sqlexec @sql

           FETCH NEXT FROM db_cursor INTO @table   
    END   

    CLOSE db_cursor   
    DEALLOCATE db_cursor 

END
GO

For business data, if the data is private I would use a secured connection, otherwise a forms authentication is sufficient.

If you do decide to use a secured connection, please note that I do not have experience with securing websites, I am just recanting off what I encountered during my own personal experience. If I am wrong in anyway, please feel free to correct me.

What should I do to prepare my website for https. (Do I need to alter the code / Config)

In order to enable SSL (Secure Sockets Layer) for your website, you would need to set-up a certificate, code or config is not altered.

I have enabled SSL for an internal web-server, by using OpenSSL and ActivePerl from this online tutorial. If this is used for a larger audience (my audience was less than 10 people) and is in the public domain, I suggest seeking professional alternatives.

Is SSL and https one and the same...

Not exactly, but they go hand in hand! SSL ensures that data is encrypted and decrypted back and forth while you are viewing the website, https is the URI that is need to access the secure website. You will notice when you try to access http://secure.mydomain.com it displays an error message.

Do I need to apply with someone to get some license or something.

You would not need to obtain a license, but rather a certificate. You can look into companies that offer professional services with securing websites, such as VeriSign as an example.

Do I need to make all my pages secured or only the login page...

Once your certificate is enabled for mydomain.com every page that falls under *.mydomain.com will be secured.

Try this

    $objPHPExcel = new PHPExcel();
    $objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
                                 ->setLastModifiedBy("Maarten Balliauw")
                                 ->setTitle("Office 2007 XLSX Test Document")
                                 ->setSubject("Office 2007 XLSX Test Document")
                                 ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
                                 ->setKeywords("office 2007 openxml php")
                                 ->setCategory("Test result file");
    $objPHPExcel->setActiveSheetIndex(0);
    $sheet = $objPHPExcel->getActiveSheet();
    $sheet->setCellValue('A1', 'No');
    $sheet->setCellValue('B1', 'Job ID');
    $sheet->setCellValue('C1', 'Job completed Date');
    $sheet->setCellValue('D1', 'Job Archived Date');
    $styleArray = array(
        'font' => array(
        'bold' => true
        )
    );
    $sheet->getStyle('A1')->applyFromArray($styleArray);
    $sheet->getStyle('B1')->applyFromArray($styleArray);
    $sheet->getStyle('C1')->applyFromArray($styleArray);
    $sheet->getStyle('D1')->applyFromArray($styleArray);
    $sheet->getPageSetup()->setRowsToRepeatAtTopByStartAndEnd(1, 1);
    

This is give me output like below link.(https://www.screencast.com/t/ZkKFHbDq1le)

Try this:

SELECT LEFT(DATENAME(MONTH,Getdate()),3)

If you are trying to match the size as shown in Windows Explorer's detail view, this is the code you want:

[DllImport("shlwapi.dll", CharSet = CharSet.Unicode)]
private static extern long StrFormatKBSize(
    long qdw,
    [MarshalAs(UnmanagedType.LPTStr)] StringBuilder pszBuf,
    int cchBuf);

public static string BytesToString(long byteCount)
{
    var sb = new StringBuilder(32);
    StrFormatKBSize(byteCount, sb, sb.Capacity);
    return sb.ToString();
}

This will not only match Explorer exactly but will also provide the strings translated for you and match differences in Windows versions (for example in Win10, K = 1000 vs. previous versions K = 1024).

Best result for me so far:

div to be centered:

position: absolute;
top: 50%;
transform: translateY(-50%);
margin: 0 auto;
right: 0;
left: 0;

That isn't the problem, Jack. Android SDK isn't x64, but works ok with x64 jvm (and x64 eclipse IDE).

As helios said, you must set project compatibility to Java 5.0 or Java 6.0.

To do that, 2 options:

1. Right-click on your project and select "Android Tools -> Fix Project Properties" (if this din't work, try second option)
2. Right-click on your project and select "Properties -> Java Compiler", check "Enable project specific settings" and select 1.5 or 1.6 from "Compiler compliance settings" select box.

Try this condition instead:

if (string.IsNullOrWhiteSpace(MaterialTextBox.Text)) {
    // Message box
}

This will take care of some strings that only contain whitespace characters and you won't have to deal with string equality which can sometimes be tricky

I found a couple of ways to do this with web based APIs. I think the US Postal Service would be the most accurate, since Zip codes are their thing, but Ziptastic looks much easier.

Using the US Postal Service HTTP/XML API

According to this page on the US Postal Service website which documents their XML based web API, specifically Section 4.0 (page 22) of this PDF document, they have a URL where you can send an XML request containing a 5 digit Zip Code and they will respond with an XML document containing the corresponding City and State.

According to their documentation, here's what you would send:

http://SERVERNAME/ShippingAPITest.dll?API=CityStateLookup&XML=<CityStateLookupRequest%20USERID="xxxxxxx"><ZipCode ID= "0"><Zip5>90210</Zip5></ZipCode></CityStateLookupRequest>

And here's what you would receive back:

<?xml version="1.0"?> 
<CityStateLookupResponse> 
    <ZipCode ID="0"> 
        <Zip5>90210</Zip5> 
        <City>BEVERLY HILLS</City> 
        <State>CA</State> 
    </ZipCode> 
</CityStateLookupResponse>

USPS does require that you register with them before you can use the API, but, as far as I could tell, there is no charge for access. By the way, their API has some other features: you can do Address Standardization and Zip Code Lookup, as well as the whole suite of tracking, shipping, labels, etc.

Using the Ziptastic HTTP/JSON API (no longer supported)

Update: As of August 13, 2017, Ziptastic is now a paid API and can be found here

This is a pretty new service, but according to their documentation, it looks like all you need to do is send a GET request to http://ziptasticapi.com, like so:

GET http://ziptasticapi.com/48867

And they will return a JSON object along the lines of:

{"country": "US", "state": "MI", "city": "OWOSSO"}

Indeed, it works. You can test this from a command line by doing something like:

curl http://ziptasticapi.com/48867 

Make sure to fully specify the version number of the API as something like "v2.11" and not "2.11"

I'm not sure what it defaults to if this is incorrect, but I got some odd errors trying to just retrieve the email when I missed the v.

To prevent having further issues with SSL you should add all those to Path :

 SETX PATH "%PATH%;C:\<path>\Anaconda3;C:\<path>\Anaconda3\Scripts;C:\<path>\Anaconda3\Library\bin"

Requests (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.") Error in PyCharm requesting website

For Redmi users,

Settings -> Password & security -> Privacy -> Special app access -> Device admin apps

Click the deactivate the apps

This is answered in some of the answers to Can't find how to use HttpContent as well as in this blog post.

In summary, you can't directly set up an instance of HttpContent because it is an abstract class. You need to use one the classes derived from it depending on your need. Most likely StringContent, which lets you set the string value of the response, the encoding, and the media type in the constructor. See: http://msdn.microsoft.com/en-us/library/system.net.http.stringcontent.aspx

Edit 2: Release 1.15.2 of the body parser module introduces raw mode, which returns the body as a Buffer. By default, it also automatically handles deflate and gzip decompression. Example usage:

var bodyParser = require('body-parser');
app.use(bodyParser.raw(options));

app.get(path, function(req, res) {
  // req.body is a Buffer object
});

By default, the options object has the following default options:

var options = {
  inflate: true,
  limit: '100kb',
  type: 'application/octet-stream'
};

If you want your raw parser to parse other MIME types other than application/octet-stream, you will need to change it here. It will also support wildcard matching such as */* or */application.

Note: The following answer is for versions before Express 4, where middleware was still bundled with the framework. The modern equivalent is the body-parser module, which must be installed separately.

The rawBody property in Express was once available, but removed since version 1.5.1. To get the raw request body, you have to put in some middleware before using the bodyParser. You can also read a GitHub discussion about it here.

app.use(function(req, res, next) {
  req.rawBody = '';
  req.setEncoding('utf8');

  req.on('data', function(chunk) { 
    req.rawBody += chunk;
  });

  req.on('end', function() {
    next();
  });
});
app.use(express.bodyParser());

That middleware will read from the actual data stream, and store it in the rawBody property of the request. You can then access the raw body like this:

app.post('/', function(req, res) {
  // do something with req.rawBody
  // use req.body for the parsed body
});

Edit: It seems that this method and bodyParser refuse to coexist, because one will consume the request stream before the other, leading to whichever one is second to never fire end, thus never calling next(), and hanging your application.

The simplest solution would most likely be to modify the source of bodyParser, which you would find on line 57 of Connect's JSON parser. This is what the modified version would look like.

var buf = '';
req.setEncoding('utf8');
req.on('data', function(chunk){ buf += chunk });
req.on('end', function() {
  req.rawBody = buf;
  var first = buf.trim()[0];
  ...
});

You would find the file at this location:

/node_modules/express/node_modules/connect/lib/middleware/json.js.

showInLegend is a series-specific option that can hide the series from the legend. If the requirement is to hide the legends completely then it is better to use enabled: false property as shown below:

legend: { enabled: false }

More information about legend is here

Since I have recently developed an Android application using gyroscope data (steady compass), I tried to collect a list with such devices. This is not an exhaustive list at all, but it is what I have so far:

*** Phones:

• HTC Sensation
• HTC Sensation XL
• HTC Evo 3D
• HTC One S
• HTC One X
• Huawei Ascend P1
• Huawei Ascend X (U9000)
• Huawei Honor (U8860)
• LG Nitro HD (P930)
• LG Optimus 2x (P990)
• LG Optimus Black (P970)
• LG Optimus 3D (P920)
• Samsung Galaxy S II (i9100)
• Samsung Galaxy S III (i9300)
• Samsung Galaxy R (i9103)
• Samsung Google Nexus S (i9020)
• Samsung Galaxy Nexus (i9250)
• Samsung Galaxy J3 (2017) model
• Samsung Galaxy Note (n7000)
• Sony Xperia P (LT22i)
• Sony Xperia S (LT26i)

*** Tablets:

• Acer Iconia Tab A100 (7")
• Acer Iconia Tab A500 (10.1")
• Asus Eee Pad Transformer (TF101)
• Asus Eee Pad Transformer Prime (TF201)
• Motorola Xoom (mz604)
• Samsung Galaxy Tab (p1000)
• Samsung Galaxy Tab 7 plus (p6200)
• Samsung Galaxy Tab 10.1 (p7100)
• Sony Tablet P
• Sony Tablet S
• Toshiba Thrive 7"
• Toshiba Trhive 10"

Hope the list keeps growing and hope that gyros will be soon available on mid and low price smartphones.

This is most csv friendly way I found to output the results of HiveQL.
You don't need any grep or sed commands to format the data, instead hive supports it, just need to add extra tag of outputformat.

hive --outputformat=csv2 -e 'select * from <table_name> limit 20' > /path/toStore/data/results.csv

Use Intellij plugin Sketch It!.

Also you can use guppy module.

>>> from guppy import hpy; hp=hpy()
>>> hp.heap()
Partition of a set of 25853 objects. Total size = 3320992 bytes.
 Index  Count   %     Size   % Cumulative  % Kind (class / dict of class)
     0  11731  45   929072  28    929072  28 str
     1   5832  23   469760  14   1398832  42 tuple
     2    324   1   277728   8   1676560  50 dict (no owner)
     3     70   0   216976   7   1893536  57 dict of module
     4    199   1   210856   6   2104392  63 dict of type
     5   1627   6   208256   6   2312648  70 types.CodeType
     6   1592   6   191040   6   2503688  75 function
     7    199   1   177008   5   2680696  81 type
     8    124   0   135328   4   2816024  85 dict of class
     9   1045   4    83600   3   2899624  87 __builtin__.wrapper_descriptor
<90 more rows. Type e.g. '_.more' to view.>

And:

>>> hp.iso(1, [1], "1", (1,), {1:1}, None)
Partition of a set of 6 objects. Total size = 560 bytes.
 Index  Count   %     Size   % Cumulative  % Kind (class / dict of class)
     0      1  17      280  50       280  50 dict (no owner)
     1      1  17      136  24       416  74 list
     2      1  17       64  11       480  86 tuple
     3      1  17       40   7       520  93 str
     4      1  17       24   4       544  97 int
     5      1  17       16   3       560 100 types.NoneType

After installing the gems, if you want to know where a particular gem is. Try typing:

 gem list

You will be able to see the list of gems you have installed. Now use bundle show and name the gem you want to know the path for, like this:

 bundle show <gemName>

Or (as of younger versions of bundler):

 bundle info <gemName>

Another way to pass named parameters to Bash... is passing by reference. This is supported as of Bash 4.0

#!/bin/bash
function myBackupFunction(){ # directory options destination filename
local directory="$1" options="$2" destination="$3" filename="$4";
  echo "tar cz ${!options} ${!directory} | ssh root@backupserver \"cat > /mnt/${!destination}/${!filename}.tgz\"";
}

declare -A backup=([directory]=".." [options]="..." [destination]="backups" [filename]="backup" );

myBackupFunction backup[directory] backup[options] backup[destination] backup[filename];

An alternative syntax for Bash 4.3 is using a nameref.

Although the nameref is a lot more convenient in that it seamlessly dereferences, some older supported distros still ship an older version, so I won't recommend it quite yet.

Note most of the other techniques described here break down if you're dealing with characters outside of the BMP (Unicode Basic Multilingual Plane), i.e. code points that are outside of the u0000-uFFFF range. This will only happen rarely, since the code points outside this are mostly assigned to dead languages. But there are some useful characters outside this, for example some code points used for mathematical notation, and some used to encode proper names in Chinese.

In that case your code will be:

String str = "....";
int offset = 0, strLen = str.length();
while (offset < strLen) {
  int curChar = str.codePointAt(offset);
  offset += Character.charCount(curChar);
  // do something with curChar
}

The Character.charCount(int) method requires Java 5+.

Source: http://mindprod.com/jgloss/codepoint.html

Your mock is raising the exception just fine, but the error.resp.status value is missing. Rather than use return_value, just tell Mock that status is an attribute:

barMock.side_effect = HttpError(mock.Mock(status=404), 'not found')

Additional keyword arguments to Mock() are set as attributes on the resulting object.

I put your foo and bar definitions in a my_tests module, added in the HttpError class so I could use it too, and your test then can be ran to success:

>>> from my_tests import foo, HttpError
>>> import mock
>>> with mock.patch('my_tests.bar') as barMock:
...     barMock.side_effect = HttpError(mock.Mock(status=404), 'not found')
...     result = my_test.foo()
... 
404 - 
>>> result is None
True

You can even see the print '404 - %s' % error.message line run, but I think you wanted to use error.content there instead; that's the attribute HttpError() sets from the second argument, at any rate.

Iterator is an interface in the Java Collections framework that provides methods to traverse or iterate over a collection.

Both iterator and for loop acts similar when your motive is to just traverse over a collection to read its elements.

for-each is just one way to iterate over the Collection.

For example:

List<String> messages= new ArrayList<>();

//using for-each loop
for(String msg: messages){
    System.out.println(msg);
}

//using iterator 
Iterator<String> it = messages.iterator();
while(it.hasNext()){
    String msg = it.next();
    System.out.println(msg);
}

And for-each loop can be used only on objects implementing the iterator interface.

Now back to the case of for loop and iterator.

The difference comes when you try to modify a collection. In this case, iterator is more efficient because of its fail-fast property. ie. it checks for any modification in the structure of underlying collection before iterating over the next element. If there are any modifications found, it will throw the ConcurrentModificationException.

(Note: This functionality of iterator is only applicable in case of collection classes in java.util package. It is not applicable for concurrent collections as they are fail-safe by nature)

If you are using java 1.8, remove XX:-UseSplitVerifier and use -noverify in your JVM properties.

You need to use the various Bootstrap 4 centering methods...

• Use text-center for inline elements.
• Use justify-content-center for flexbox elements (ie; form-inline)

https://codeply.com/go/Am5LvvjTxC

Also, to offset the column, the col-sm-* must be contained within a .row, and the .row must be in a container...

<section id="cover">
    <div id="cover-caption">
        <div id="container" class="container">
            <div class="row">
                <div class="col-sm-10 offset-sm-1 text-center">
                    <h1 class="display-3">Welcome to Bootstrap 4</h1>
                    <div class="info-form">
                        <form action="" class="form-inline justify-content-center">
                            <div class="form-group">
                                <label class="sr-only">Name</label>
                                <input type="text" class="form-control" placeholder="Jane Doe">
                            </div>
                            <div class="form-group">
                                <label class="sr-only">Email</label>
                                <input type="text" class="form-control" placeholder="[email protected]">
                            </div>
                            <button type="submit" class="btn btn-success ">okay, go!</button>
                        </form>
                    </div>
                    <br>

                    <a href="#nav-main" class="btn btn-secondary-outline btn-sm" role="button">?</a>
                </div>
            </div>
        </div>
    </div>
</section>

I just set outline transparent.

input[type=text] {
  outline: rgba(0, 0, 0, 0);
  border-radius: 10px;
}

input[type=text]:focus {    
  border-color: #0079ff;
}

In my case i had to move the html code of the element i wanted at the front at the end of the html file, because if one element has z-index and the other doesn't have z index it doesn't work.

See this youtube video: BASH scripting lesson 10 working with CSV files

CSV file:

Bob Brown;Manager;16581;Main
Sally Seaforth;Director;4678;HOME

Bash script:

#!/bin/bash
OLDIFS=$IFS
IFS=";"
while read user job uid location
 do

    echo -e "$user \
    ======================\n\
    Role :\t $job\n\
    ID :\t $uid\n\
    SITE :\t $location\n"
 done < $1
 IFS=$OLDIFS

Output:

Bob Brown     ======================
    Role :   Manager
    ID :     16581
    SITE :   Main

Sally Seaforth     ======================
    Role :   Director
    ID :     4678
    SITE :   HOME

Generally, the system should be handling view controller instantiation with a storyboard. What you want is to traverse the viewController hierarchy by grabbing a reference to the self.window.rootViewController as opposed to initializing view controllers, which should already be initialized correctly if you've setup your storyboard properly.

So, let's say your rootViewController is a UINavigationController and then you want to send something to its top view controller, you would do it like this in your AppDelegate's didFinishLaunchingWithOptions:

UINavigationController *nav = (UINavigationController *) self.window.rootViewController;
MyViewController *myVC = (MyViewController *)nav.topViewController;
myVC.data = self.data;

In Swift if would be very similar:

let nav = self.window.rootViewController as! UINavigationController;
let myVC = nav.topViewController as! MyViewController
myVc.data = self.data

You really shouldn't be initializing view controllers using storyboard id's from the app delegate unless you want to bypass the normal way storyboard is loaded and load the whole storyboard yourself. If you're having to initialize scenes from the AppDelegate you're most likely doing something wrong. I mean imagine you, for some reason, want to send data to a view controller way down the stack, the AppDelegate shouldn't be reaching way into the view controller stack to set data. That's not its business. It's business is the rootViewController. Let the rootViewController handle its own children! So, if I were bypassing the normal storyboard loading process by the system by removing references to it in the info.plist file, I would at most instantiate the rootViewController using instantiateViewControllerWithIdentifier:, and possibly its root if it is a container, like a UINavigationController. What you want to avoid is instantiating view controllers that have already been instantiated by the storyboard. This is a problem I see a lot. In short, I disagree with the accepted answer. It is incorrect unless the posters means to remove loading of the storyboard from the info.plist since you will have loaded 2 storyboards otherwise, which makes no sense. It's probably not a memory leak because the system initialized the root scene and assigned it to the window, but then you came along and instantiated it again and assigned it again. Your app is off to a pretty bad start!

Many times when crawling we run into problems where content that is rendered on the page is generated with Javascript and therefore scrapy is unable to crawl for it (eg. ajax requests, jQuery craziness).

However, if you use Scrapy along with the web testing framework Selenium then we are able to crawl anything displayed in a normal web browser.

Some things to note:

• You must have the Python version of Selenium RC installed for this to work, and you must have set up Selenium properly. Also this is just a template crawler. You could get much crazier and more advanced with things but I just wanted to show the basic idea. As the code stands now you will be doing two requests for any given url. One request is made by Scrapy and the other is made by Selenium. I am sure there are ways around this so that you could possibly just make Selenium do the one and only request but I did not bother to implement that and by doing two requests you get to crawl the page with Scrapy too.

• This is quite powerful because now you have the entire rendered DOM available for you to crawl and you can still use all the nice crawling features in Scrapy. This will make for slower crawling of course but depending on how much you need the rendered DOM it might be worth the wait.

  from scrapy.contrib.spiders import CrawlSpider, Rule
  from scrapy.contrib.linkextractors.sgml import SgmlLinkExtractor
  from scrapy.selector import HtmlXPathSelector
  from scrapy.http import Request
  
  from selenium import selenium
  
  class SeleniumSpider(CrawlSpider):
      name = "SeleniumSpider"
      start_urls = ["http://www.domain.com"]
  
      rules = (
          Rule(SgmlLinkExtractor(allow=('\.html', )), callback='parse_page',follow=True),
      )
  
      def __init__(self):
          CrawlSpider.__init__(self)
          self.verificationErrors = []
          self.selenium = selenium("localhost", 4444, "*chrome", "http://www.domain.com")
          self.selenium.start()
  
      def __del__(self):
          self.selenium.stop()
          print self.verificationErrors
          CrawlSpider.__del__(self)
  
      def parse_page(self, response):
          item = Item()
  
          hxs = HtmlXPathSelector(response)
          #Do some XPath selection with Scrapy
          hxs.select('//div').extract()
  
          sel = self.selenium
          sel.open(response.url)
  
          #Wait for javscript to load in Selenium
          time.sleep(2.5)
  
          #Do some crawling of javascript created content with Selenium
          sel.get_text("//div")
          yield item
  
  # Snippet imported from snippets.scrapy.org (which no longer works)
  # author: wynbennett
  # date  : Jun 21, 2011
  

Reference: http://snipplr.com/view/66998/

If your method is void and you want to check for an exception, you could use expected: https://weblogs.java.net/blog/johnsmart/archive/2009/09/27/testing-exceptions-junit-47

The above solutions must work. However you can try this one:

OnClientClick="return SomeMethod();return false;"

and remove return statement from the method.

The enumerate function returns a generator object which, at each iteration, yields a tuple containing the index of the element (i), numbered starting from 0 by default, coupled with the element itself (a), and the for loop conveniently allows you to access both fields of those generated tuples and assign variable names to them.

I was thinking you could use a regexp_like condition and use the regular expression to find any non-numerics. I hope this might help?!

SELECT * FROM table_with_column_to_search WHERE REGEXP_LIKE(varchar_col_with_non_numerics, '[^0-9]+');

c.Request["AP"] will read posted values. Also you need to use a submit button to post the form:

<input type="submit" value="Submit" />

instead of

<input type=button value="Submit" />

To avoid this sort of trouble, you can use replace (which takes a plain string) instead of replaceAll (which takes a regular expression). You will still need to escape backslashes, but not in the wild ways required with regular expressions.

Since pandas 1.0.0 df.sort_values has a new parameter ignore_index which does exactly what you need:

In [1]: df2 = df.sort_values(by=['x','y'],ignore_index=True)

In [2]: df2
Out[2]:
   x  y
0  0  0
1  0  1
2  0  2
3  1  0
4  1  1
5  1  2
6  2  0
7  2  1
8  2  2

This should do the trick:

$($.parseJSON(data.msg)).map(function () {
    return $('<option>').val(this.value).text(this.label);
}).appendTo('#combobox');

Here's the distinction between ajax and getJSON (from the jQuery documentation):

[getJSON] is a shorthand Ajax function, which is equivalent to:

$.ajax({
  url: url,
  dataType: 'json',
  data: data,
  success: callback
});

EDIT: To be clear, part of the problem was that the server's response was returning a json object that looked like this:

{
    "msg": '[{"value":"1","label":"xyz"}, {"value":"2","label":"abc"}]'
}

...So that msg property needed to be parsed manually using $.parseJSON().

One way to get around this is to use implicit casting:

bool DoesEntityExist<T>(T entity, Guid guid, ITransaction transaction) where T : IGloballyIdentifiable;

calling it like so:

DoesEntityExist(entity, entityGuid, transaction);

Going a step further, you can turn it into an extension method (it will need to be declared in a static class):

static bool DoesEntityExist<T>(this T entity, Guid guid, ITransaction transaction) where T : IGloballyIdentifiable;

calling as so:

entity.DoesEntityExist(entityGuid, transaction);

select @currentTerm = CurrentTerm, @termID = TermID, @endDate = EndDate
    from table1
    where IsCurrent = 1

I am not sure, what is the official documentation for markdown. Cross-Reference can be written just in brackets [Heading], or with empty brackets [Heading][].

Both works using pandoc. So I created a quick bash script, that will replace $__TOC__ in md file with its TOC. (You will need envsubst, that might not be part of your distro)

#!/bin/bash
filename=$1
__TOC__=$(grep "^##" $filename | sed -e 's/ /1. /;s/^##//;s/#/   /g;s/\. \(.*\)$/. [\1][]/')
export __TOC__
envsubst '$__TOC__' < $filename

I had to change my code from this:

 DirectoryEntry entry = new DirectoryEntry(path, ldapUser, ldapPassword);
 DirectorySearcher searcher = new DirectorySearcher();
 searcher.SearchRoot = entry;
 searcher.SearchScope = SearchScope.Subtree;

To this:

DirectoryEntry entry = new DirectoryEntry(path, ldapUser, ldapPassword);
DirectorySearcher searcher = new DirectorySearcher();
searcher.SearchScope = SearchScope.OneLevel;
SearchResult searchResult = searcher.FindOne();

You should be able to compare them directly.

var date = moment("2013-03-24")
var now = moment();

if (now > date) {
   // date is past
} else {
   // date is future
}

$(document).ready(function() {_x000D_
  _x000D_
  $('.compare').click(function(e) {_x000D_
  _x000D_
    var date = $('#date').val();_x000D_
  _x000D_
    var now = moment();_x000D_
    var then = moment(date);_x000D_
  _x000D_
    if (now > then) {_x000D_
      $('.result').text('Date is past');_x000D_
    } else {_x000D_
      $('.result').text('Date is future');_x000D_
    }_x000D_
_x000D_
  });_x000D_
_x000D_
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.3/moment.min.js"></script>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
_x000D_
<input type="text" name="date" id="date" value="2014-12-18"  placeholder="yyyy-mm-dd">_x000D_
<button class="compare">Compare date to current date</button>_x000D_
<br>_x000D_
<div class="result"></div>

Previously posted solutions did not work for me. cell.getRawValue() returned the same formula as stated in the cell. The following function worked for me:

public void readFormula() throws IOException {
    FileInputStream fis = new FileInputStream("Path of your file");
    Workbook wb = new XSSFWorkbook(fis);
    Sheet sheet = wb.getSheetAt(0);
    FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();

    CellReference cellReference = new CellReference("C2"); // pass the cell which contains the formula
    Row row = sheet.getRow(cellReference.getRow());
    Cell cell = row.getCell(cellReference.getCol());

    CellValue cellValue = evaluator.evaluate(cell);

    switch (cellValue.getCellType()) {
        case Cell.CELL_TYPE_BOOLEAN:
            System.out.println(cellValue.getBooleanValue());
            break;
        case Cell.CELL_TYPE_NUMERIC:
            System.out.println(cellValue.getNumberValue());
            break;
        case Cell.CELL_TYPE_STRING:
            System.out.println(cellValue.getStringValue());
            break;
        case Cell.CELL_TYPE_BLANK:
            break;
        case Cell.CELL_TYPE_ERROR:
            break;

        // CELL_TYPE_FORMULA will never happen
        case Cell.CELL_TYPE_FORMULA:
            break;
    }

}

The ! at the end of an object says the object is an optional and to unwrap if it can otherwise returns a nil. This is often used to trap errors that would otherwise crash the program.

Using TempData

Represents a set of data that persists only from one request to the next

[HttpPost]
public ActionResult FillStudent(Student student1)
{
    TempData["student"]= new Student();
    return RedirectToAction("GetStudent","Student");
}

[HttpGet]
public ActionResult GetStudent(Student passedStd)
{
    Student std=(Student)TempData["student"];
    return View();
}

Alternative way Pass the data using Query string

return RedirectToAction("GetStudent","Student", new {Name="John", Class="clsz"});

This will generate a GET Request like Student/GetStudent?Name=John & Class=clsz

Ensure the method you want to redirect to is decorated with [HttpGet] as the above RedirectToAction will issue GET Request with http status code 302 Found (common way of performing url redirect)

This error bothered me for two days. I tried all kinds of solutions, nothing worked. Finally I give up and tried a radical approach. and it worked! Here are the steps:

1. Save a copy of the pom.xml,
2. deleted all text in pom.xml
3. Let eclipse do a clean rebuild, of course everything will be broken.
4. pasted back everything in the original pom.xml
5. let Eclipse build again

I guess it was "indeterministic" as the following article said.

http://wiki.eclipse.org/M2E_plugin_execution_not_covered

Try this :

@Override
protected void onPause() {
    super.onPause();
    if (getSupportFragmentManager().findFragmentByTag("MyFragment") != null)
        getSupportFragmentManager().findFragmentByTag("MyFragment").setRetainInstance(true);
}

@Override
protected void onResume() {
    super.onResume();
    if (getSupportFragmentManager().findFragmentByTag("MyFragment") != null)
        getSupportFragmentManager().findFragmentByTag("MyFragment").getRetainInstance();
}

Hope this will help.

Also you can write this to activity tag in menifest file :

  android:configChanges="orientation|screenSize"

Good luck !!!

For char array-type strings you can use this:

#include <ctype.h>
#include <string.h>

int main()
{
    char filename[] = "apples.bmp";
    char extension[] = ".jpeg";

    if(compare_extension(filename, extension) == true)
    {
        // .....
    } else {
        // .....
    }

    return 0;
}

bool compare_extension(char *filename, char *extension)
{
    /* Sanity checks */

    if(filename == NULL || extension == NULL)
        return false;

    if(strlen(filename) == 0 || strlen(extension) == 0)
        return false;

    if(strchr(filename, '.') == NULL || strchr(extension, '.') == NULL)
        return false;

    /* Iterate backwards through respective strings and compare each char one at a time */

    for(int i = 0; i < strlen(filename); i++)
    {
        if(tolower(filename[strlen(filename) - i - 1]) == tolower(extension[strlen(extension) - i - 1]))
        {
            if(i == strlen(extension) - 1)
                return true;
        } else
            break;
    }

    return false;
}

Can handle file paths in addition to filenames. Works with both C and C++. And cross-platform.

If you are sure you are going to get at most a single element that passed the filter (which is guaranteed by your filter), you can use findFirst :

Optional<List> o = id1.entrySet()
                      .stream()
                      .filter( e -> e.getKey() == 1)
                      .map(Map.Entry::getValue)
                      .findFirst();

In the general case, if the filter may match multiple Lists, you can collect them to a List of Lists :

List<List> list = id1.entrySet()
                     .stream()
                     .filter(.. some predicate...)
                     .map(Map.Entry::getValue)
                     .collect(Collectors.toList());

First, I'd like to apologize for bringing this question back up, but I felt that it could use another answer.

Derek Schultz is kind of correct. The '\b' character moves the printing cursor one character backwards, allowing you to overwrite the character that was printed there (it does not delete the entire line or even the character that was there unless you print new information on top). The following is an example of a progress bar using Java though it does not follow your format, it shows how to solve the core problem of overwriting characters (this has only been tested in Ubuntu 12.04 with Oracle's Java 7 on a 32-bit machine, but it should work on all Java systems):

public class BackSpaceCharacterTest
{
    // the exception comes from the use of accessing the main thread
    public static void main(String[] args) throws InterruptedException
    {
        /*
            Notice the user of print as opposed to println:
            the '\b' char cannot go over the new line char.
        */
        System.out.print("Start[          ]");
        System.out.flush(); // the flush method prints it to the screen

        // 11 '\b' chars: 1 for the ']', the rest are for the spaces
        System.out.print("\b\b\b\b\b\b\b\b\b\b\b");
        System.out.flush();
        Thread.sleep(500); // just to make it easy to see the changes

        for(int i = 0; i < 10; i++)
        {
            System.out.print("."); //overwrites a space
            System.out.flush();
            Thread.sleep(100);
        }

        System.out.print("] Done\n"); //overwrites the ']' + adds chars
        System.out.flush();
    }
}

You can use axe selectors for this.

There are two approaches:

1. Immediate Parent axe Selector (<)

#a:hover < #content + #b

This axe style rule will select #b, which is the immediate sibling of #content, which is the immediate parent of #a which has a :hover state.

div {
display: inline-block;
margin: 30px;
font-weight: bold;
}

#content {
width: 160px;
height: 160px;
background-color: rgb(255, 0, 0);
}

#a, #b {
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
}

#a {
color: rgb(255, 0, 0);
background-color: rgb(255, 255, 0);
cursor: pointer;
}

#b {
display: none;
color: rgb(255, 255, 255);
background-color: rgb(0, 0, 255);
}

#a:hover < #content + #b {
display: inline-block;
}

<div id="content">
<div id="a">Hover me</div>
</div>

<div id="b">Show me</div>

<script src="https://rouninmedia.github.io/axe/axe.js"></script>

2. Remote Element axe Selector (\)

#a:hover \ #b

This axe style rule will select #b, which is present in the same document as #a which has a :hover state.

div {
display: inline-block;
margin: 30px;
font-weight: bold;
}

#content {
width: 160px;
height: 160px;
background-color: rgb(255, 0, 0);
}

#a, #b {
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
}

#a {
color: rgb(255, 0, 0);
background-color: rgb(255, 255, 0);
cursor: pointer;
}

#b {
display: none;
color: rgb(255, 255, 255);
background-color: rgb(0, 0, 255);
}

#a:hover \ #b {
display: inline-block;
}

<div id="content">
<div id="a">Hover me</div>
</div>

<div id="b">Show me</div>

<script src="https://rouninmedia.github.io/axe/axe.js"></script>

In my case adding sudo before npm install solved gulp command not found problem

sudo npm install

If you want a real timer you need to use the date object.

Calculate the difference.

Format your string.

window.onload=function(){
      var start=Date.now(),r=document.getElementById('r');
      (function f(){
      var diff=Date.now()-start,ns=(((3e5-diff)/1e3)>>0),m=(ns/60)>>0,s=ns-m*60;
      r.textContent="Registration closes in "+m+':'+((''+s).length>1?'':'0')+s;
      if(diff>3e5){
         start=Date.now()
      }
      setTimeout(f,1e3);
      })();
}

Example

Jsfiddle

not so precise timer

var time=5*60,r=document.getElementById('r'),tmp=time;

setInterval(function(){
    var c=tmp--,m=(c/60)>>0,s=(c-m*60)+'';
    r.textContent='Registration closes in '+m+':'+(s.length>1?'':'0')+s
    tmp!=0||(tmp=time);
},1000);

JsFiddle

I ended up using archiver lib. Works great.

Example

var file_system = require('fs');
var archiver = require('archiver');

var output = file_system.createWriteStream('target.zip');
var archive = archiver('zip');

output.on('close', function () {
    console.log(archive.pointer() + ' total bytes');
    console.log('archiver has been finalized and the output file descriptor has closed.');
});

archive.on('error', function(err){
    throw err;
});

archive.pipe(output);

// append files from a sub-directory, putting its contents at the root of archive
archive.directory(source_dir, false);

// append files from a sub-directory and naming it `new-subdir` within the archive
archive.directory('subdir/', 'new-subdir');

archive.finalize();

It depends on how the code in the first file is structured.

If it's just a bunch of functions, like:

# first.py
def foo(): print("foo")
def bar(): print("bar")

Then you could import it and use the functions as follows:

# second.py
import first

first.foo()    # prints "foo"
first.bar()    # prints "bar"

or

# second.py
from first import foo, bar

foo()          # prints "foo"
bar()          # prints "bar"

or, to import all the names defined in first.py:

# second.py
from first import *

foo()          # prints "foo"
bar()          # prints "bar"

Note: This assumes the two files are in the same directory.

It gets a bit more complicated when you want to import names (functions, classes, etc) from modules in other directories or packages.

There are two possible scenarios,

1. If your application runs on .net framework 4.5 or less, and you can easily deploy new code to the production then you can use of below solution.

   You can add the below line of code before making the API call,

   ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12; // .NET 4.5
   ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; // .NET 4.0
   

2. If you cannot deploy new code and you want to resolve the issue with the same code which is present in the production, then you have two options.

Option 1 :

[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

then create a file with extension .reg and install.

Note : This setting will apply at registry level and is applicable to all application present on that machine and if you want to restrict to only single application then you can use Option 2

Option 2 : This can be done by changing some configuration setting in config file. You can add either in your config file.

<runtime>
    <AppContextSwitchOverrides value="Switch.System.Net.DontEnableSchUseStrongCrypto=false"/>
</runtime>

or

<runtime>
  <AppContextSwitchOverrides value="Switch.System.Net.DontEnableSystemDefaultTlsVersions=false"
</runtime>

you could also do show columns in $table or see Hive, how do I retrieve all the database's tables columns for access to hive metadata

I needed to get the number of occurrences of each distinct value. The column contained Region info. The simple SQL query I ended up with was:

SELECT Region, count(*)
FROM item
WHERE Region is not null
GROUP BY Region

Which would give me a list like, say:

Region, count
Denmark, 4
Sweden, 1
USA, 10

Here is a working example:

@echo off
:ask
@echo echo Would you like to use developer mode?(Y/N)
set INPUT=
set /P INPUT=Type input: %=%
If /I "%INPUT%"=="y" goto yes 
If /I "%INPUT%"=="n" goto no
goto ask
:yes
@echo you select yes
goto exit
:no
@echo you select no
goto exit
:exit
@pause

This worked for me. In my service class, I created the notification channel for android 8.1 as below:

public class Service extends Service {

    public static final String NOTIFICATION_CHANNEL_ID_SERVICE = "com.package.MyService";
    public static final String NOTIFICATION_CHANNEL_ID_INFO = "com.package.download_info";

    @Override
    public void onCreate() {

        super.onCreate();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            nm.createNotificationChannel(new NotificationChannel(NOTIFICATION_CHANNEL_ID_SERVICE, "App Service", NotificationManager.IMPORTANCE_DEFAULT));
            nm.createNotificationChannel(new NotificationChannel(NOTIFICATION_CHANNEL_ID_INFO, "Download Info", NotificationManager.IMPORTANCE_DEFAULT));
        } else {
            Notification notification = new Notification();
            startForeground(1, notification);
        }
    }
}

Note: Create the channel where you are creating the Notification for Build.VERSION.SDK_INT >= Build.VERSION_CODES.O

.str.get

This is the simplest to specify string methods

# Setup
df = pd.DataFrame({'A': ['xyz', 'abc', 'foobar'], 'B': [123, 456, 789]})
df

        A    B
0     xyz  123
1     abc  456
2  foobar  789

df.dtypes

A    object
B     int64
dtype: object

For string (read:object) type columns, use

df['C'] = df['A'].str[0]
# Similar to,
df['C'] = df['A'].str.get(0)

.str handles NaNs by returning NaN as the output.

For non-numeric columns, an .astype conversion is required beforehand, as shown in @Ed Chum's answer.

# Note that this won't work well if the data has NaNs. 
# It'll return lowercase "n"
df['D'] = df['B'].astype(str).str[0]

df
        A    B  C  D
0     xyz  123  x  1
1     abc  456  a  4
2  foobar  789  f  7

List Comprehension and Indexing

There is enough evidence to suggest a simple list comprehension will work well here and probably be faster.

# For string columns
df['C'] = [x[0] for x in df['A']]

# For numeric columns
df['D'] = [str(x)[0] for x in df['B']]

df
        A    B  C  D
0     xyz  123  x  1
1     abc  456  a  4
2  foobar  789  f  7

If your data has NaNs, then you will need to handle this appropriately with an if/else in the list comprehension,

df2 = pd.DataFrame({'A': ['xyz', np.nan, 'foobar'], 'B': [123, 456, np.nan]})
df2

        A      B
0     xyz  123.0
1     NaN  456.0
2  foobar    NaN

# For string columns
df2['C'] = [x[0] if isinstance(x, str) else np.nan for x in df2['A']]

# For numeric columns
df2['D'] = [str(x)[0] if pd.notna(x) else np.nan for x in df2['B']]

        A      B    C    D
0     xyz  123.0    x    1
1     NaN  456.0  NaN    4
2  foobar    NaN    f  NaN

Let's do some timeit tests on some larger data.

df_ = df.copy()
df = pd.concat([df_] * 5000, ignore_index=True) 

%timeit df.assign(C=df['A'].str[0])
%timeit df.assign(D=df['B'].astype(str).str[0])

%timeit df.assign(C=[x[0] for x in df['A']])
%timeit df.assign(D=[str(x)[0] for x in df['B']])

12 ms ± 253 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
27.1 ms ± 1.38 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)

3.77 ms ± 110 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
7.84 ms ± 145 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)

List comprehensions are 4x faster.

I think you could do:

$('#google_translate_element').find('*').each(function(){
    $(this).unbind('click');
});

but it would cause a lot of overhead

http://wxcode.sourceforge.net/docs/wxpdfdoc/

Works with the wxWidgets library.

You have to just add the index_col=False parameter

df1 = pd.read_csv('foo.csv',
     header=0,
     index_col=False,
     names=["dummy", "date", "loc", "x"], 
     usecols=["dummy", "date", "loc", "x"],
     parse_dates=["date"])
  print df1

The error TypeError: 'numpy.ndarray' object is not callable means that you tried to call a numpy array as a function. We can reproduce the error like so in the repl:

In [16]: import numpy as np

In [17]: np.array([1,2,3])()
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/home/user/<ipython-input-17-1abf8f3c8162> in <module>()
----> 1 np.array([1,2,3])()

TypeError: 'numpy.ndarray' object is not callable

If we are to assume that the error is indeed coming from the snippet of code that you posted (something that you should check,) then you must have reassigned either pd.rolling_mean or pd.rolling_std to a numpy array earlier in your code.

What I mean is something like this:

In [1]: import numpy as np

In [2]: import pandas as pd

In [3]: pd.rolling_mean(np.array([1,2,3]), 20, min_periods=5) # Works
Out[3]: array([ nan,  nan,  nan])

In [4]: pd.rolling_mean = np.array([1,2,3])

In [5]: pd.rolling_mean(np.array([1,2,3]), 20, min_periods=5) # Doesn't work anymore...
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
/home/user/<ipython-input-5-f528129299b9> in <module>()
----> 1 pd.rolling_mean(np.array([1,2,3]), 20, min_periods=5) # Doesn't work anymore...

TypeError: 'numpy.ndarray' object is not callable

So, basically you need to search the rest of your codebase for pd.rolling_mean = ... and/or pd.rolling_std = ... to see where you may have overwritten them.

To keep ALL TAGS AND BRANCHES

Just simply run this command in an existing Git repository

cd existing_repo
git remote rename origin previous-hosts
git remote add gitlab [email protected]:hutber/kindred.com.git
git push -u gitlab --all
git push -u gitlab --tags

It comes with the ng-repeat directive usually. To do dom manipulation AngularJS flags objects with special id.

This is common with Angular. For example if u get object with ngResource your object will embed all the resource API and you'll see methods like $save, etc. With cookies too AngularJS will add a property __ngDebug.

A bit late to this question, but I created a class with all the handy methods needed to create a fully functional time trial in C#. Rather than your application config, I write the expiry time to the Windows Application Data path, and that will also remain persistent even after the program has closed (it's also tricky to find the path for the average user).

Fully documented and simple to use, I hope someone finds it useful!

public class TimeTrialManager
{
    private long expiryTime=0;
    private string softwareName = "";
    private string userPath="";
    private bool useSeconds = false;

    public TimeTrialManager(string softwareName) {
        this.softwareName = softwareName;
        // Create folder in Windows Application Data folder for persistence:
        userPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData).ToString() + "\\" + softwareName + "_prefs\\";
        if (!Directory.Exists(userPath)) Directory.CreateDirectory(Path.GetDirectoryName(userPath));
        userPath += "expiryinfo.txt";
    }

    // Use this method to check if the expiry has already been created. If
    // it has, you don't need to call the setExpiryDate() method ever again.
    public bool expiryHasBeenStored(){
        return File.Exists(userPath);
    }

    // Use this to set expiry as the number of days from the current time.
    // This should be called just once in the program's lifetime for that user.
    public void setExpiryDate(double days)  {
        DateTime time = DateTime.Now.AddDays(days);
        expiryTime = time.ToFileTimeUtc();
        storeExpiry(expiryTime.ToString() );
        useSeconds = false;
    }

    // Like above, but set the number of seconds. This should be just used for testing
    // as no sensible time trial would allow the user seconds to test the trial out:
    public void setExpiryTime(double seconds)   {
        DateTime time = DateTime.Now.AddSeconds(seconds);
        expiryTime = time.ToFileTimeUtc();
        storeExpiry(expiryTime.ToString());
        useSeconds = true;
    }

    // Check for this in a background timer or whenever else you wish to check if the time has run out
    public bool trialHasExpired()   {
        if(!File.Exists(userPath)) return false;
        if (expiryTime == 0)    expiryTime = Convert.ToInt64(File.ReadAllText(userPath));
        if (DateTime.Now.ToFileTimeUtc() >= expiryTime) return true; else return false;
    }

    // This method is optional and isn't required to use the core functionality of the class
    // Perhaps use it to tell the user how long he has left to trial the software
    public string expiryAsHumanReadableString(bool remaining=false) {
        DateTime dt = new DateTime();
        dt = DateTime.FromFileTimeUtc(expiryTime);
        if (remaining == false) return dt.ToShortDateString() + " " + dt.ToLongTimeString();
        else {
            if (useSeconds) return dt.Subtract(DateTime.Now).TotalSeconds.ToString();
            else return (dt.Subtract(DateTime.Now).TotalDays ).ToString();
        }
    }

    // This method is private to the class, so no need to worry about it
    private void storeExpiry(string value)  {
        try { File.WriteAllText(userPath, value); }
        catch (Exception ex) { MessageBox.Show(ex.Message); }
    }

}

Here is a typical usage of the above class. Couldn't be simpler!

TimeTrialManager ttm;
private void Form1_Load(object sender, EventArgs e)
{
    ttm = new TimeTrialManager("TestTime");
    if (!ttm.expiryHasBeenStored()) ttm.setExpiryDate(30); // Expires in 30 days time
}

private void timer1_Tick(object sender, EventArgs e)
{
    if (ttm.trialHasExpired()) { MessageBox.Show("Trial over! :("); Environment.Exit(0); }
}

If you are using Rubygems version 2.1.0 or later, you can try: gem uninstall --all.

There isn't any big deal in your above snippet, but imagine a function with a few more arguments and quite a few more lines of code. Then you decide to rename your data argument as yadda, but miss one of the places it is used in the function's body... Now data refers to the global, and you start having weird behaviour - where you would have a much more obvious NameError if you didn't have a global name data.

Also remember that in Python everything is an object (including modules, classes and functions), so there's no distinct namespaces for functions, modules or classes. Another scenario is that you import function foo at the top of your module, and use it somewhere in your function body. Then you add a new argument to your function and named it - bad luck - foo.

Finally, built-in functions and types also live in the same namespace and can be shadowed the same way.

None of this is much of a problem if you have short functions, good naming and a decent unit test coverage, but well, sometimes you have to maintain less than perfect code and being warned about such possible issues might help.

1. You can iterate through directories listed in sys.path to find all modules (except builtin ones).
2. It'll probably be somewhere around /usr/lib/pythonX.X/site-packages (again, see sys.path). And consider using native Python package management (via pip or easy_install, plus yolk) instead, packages in Linux distros-maintained repositories tend to be outdated.

Broken pipe simply means that the connection has failed. It is reasonable to assume that this is unrecoverable, and to then perform any required cleanup actions (closing connections, etc). I don't believe that you would ever see this simply due to the connection not yet being complete.

If you are using non-blocking mode then the SocketChannel.connect method will return false, and you will need to use the isConnectionPending and finishConnect methods to insure that the connection is complete. I would generally code based upon the expectation that things will work, and then catch exceptions to detect failure, rather than relying on frequent calls to "isConnected".

if(stop = true) should be if(stop == true), or simply (better!) if(stop).

This is actually a good opportunity to see a reason to why always use if(something) if you want to see if it's true instead of writing if(something == true) (bad style!).

By doing stop = true then you are assigning true to stop and not comparing.

So why the code below the if statement executed?

See the JLS - 15.26. Assignment Operators:

At run time, the result of the assignment expression is the value of the variable after the assignment has occurred. The result of an assignment expression is not itself a variable.

So because you wrote stop = true, then you're satisfying the if condition.

IF you want Department and highest salary, use

SELECT DeptID, MAX(Salary) FROM EmpDetails GROUP BY DeptID

if you want more columns in employee and department, use

select  Department.Name , emp.Name, emp.Salary from Employee emp
inner join (select DeptID, max(salary) [salary] from employee group by DeptID) b
on emp.DeptID = b.DeptID and b.salary = emp.Salary
inner join Department on emp.DeptID = Department.id
order by Department.Name

if use salary in (select max(salary...)) like this, one person have same salary in another department then it will fail.

For me it worked after removing the target folder

clear:both makes the element drop below any floated elements that precede it in the document.

You can also use clear:left or clear:right to make it drop below only those elements that have been floated left or right.

+------------+ +--------------------+
|            | |                    |
| float:left | |   without clear    |
|            | |                    |
|            | +--------------------+
|            | +--------------------+
|            | |                    |
|            | |  with clear:right  |
|            | |  (no effect here,  |
|            | |   as there is no   |
|            | |   float:right      |
|            | |   element)         |
|            | |                    |
|            | +--------------------+
|            |
+------------+
+---------------------+
|                     |
|   with clear:left   |
|    or clear:both    |
|                     |
+---------------------+

You have already executed your query here

$sql = mysql_query("UPDATE anstalld SET mandag = '$mandag', tisdag = '$tisdag', onsdag = '$onsdag', torsdag = '$torsdag', fredag = '$fredag' WHERE namn = '$namn'");

So this line has the problem

$retval = mysql_query( $sql, $conn ); //$sql is not a query its a result set here

Try something like this:

$sql = "UPDATE anstalld SET mandag = '$mandag', tisdag = '$tisdag', onsdag = '$onsdag', torsdag = '$torsdag', fredag = '$fredag' WHERE namn = '$namn'";    
$retval = mysql_query( $sql, $conn ); //execute your query

As a sidenote: MySQL_* extension is deprecated use MySQLi_* or PDO instead.

Update 2019

Remember that whatever CSS overrides you define must be the same CSS specificity or greater in order to properly override Bootstrap's CSS.

Bootstrap 4.1+

The Navbar is transparent by default. If you only want to change the background color, it can be done simply by applying the color to the <navbar class="bg-custom">, but remember that won't change the other colors such as the links, hover and dropdown menu colors.

Here's CSS that will change any relevant Navbar colors in Bootstrap 4...

/* change the background color */
.navbar-custom {
    background-color: #ff5500;
}
/* change the brand and text color */
.navbar-custom .navbar-brand,
.navbar-custom .navbar-text {
    color: rgba(255,255,255,.8);
}
/* change the link color */
.navbar-custom .navbar-nav .nav-link {
    color: rgba(255,255,255,.5);
}
/* change the color of active or hovered links */
.navbar-custom .nav-item.active .nav-link,
.navbar-custom .nav-item:focus .nav-link,
.navbar-custom .nav-item:hover .nav-link {
    color: #ffffff;
}

Demo: http://www.codeply.com/go/U9I2byZ3tS

Override Navbar Light or Dark

If you're using the Bootstrap 4 Navbar navbar-light or navbar-dark classes, then use this in the overrides. For example, changing the Navbar link colors...

.navbar-light .nav-item.active .nav-link,
.navbar-light .nav-item:focus .nav-link,
.navbar-light .nav-item:hover .nav-link {
        color: #ffffff;
}

When making any Bootstrap customizations, you need to understand CSS Specificity. Overrides in your custom CSS need to use selectors that are as specific as the bootstrap.css. Read more

Transparent Navbar

Notice that the Bootstrap 4 Navbar is transparent by default. Use navbar-dark for dark/bold background colors, and use navbar-light if the navbar is a lighter color. This will effect the color of the text and color of the toggler icon as explained here.

Related: https://stackoverflow.com/a/18530995/171456

if it is possible to create the database connection in the same file where the credentials are stored. Inline the credentials in the connect statement.

mysql_connect("localhost", "me", "mypass");

Otherwise it is best to unset the credentials after the connect statement, because credentials that are not in memory, can't be read from memory ;)

include("/outside-webroot/db_settings.php");  
mysql_connect("localhost", $db_user, $db_pass);  
unset ($db_user, $db_pass);  

You can use np.c_

np.c_[[1,2,3], [4,5,6]]

It will give you:

np.array([[1,4], [2,5], [3,6]])

You could also use

SELECT * from Results WHERE date < NOW() - INTERVAL 30 DAY;

I had same issue. After browsing and struggling with issue found the below solution

import { HttpModule } from '@angular/http';
import { HttpClientModule } from '@angular/common/http';

imports: [
  HttpModule,
  HttpClientModule
]

Import HttpModule and HttpClientModule in app.module.ts and add into the imports like mentioned above.

Here is a simpler method (hack) that gives you back the setdefaultencoding() function that was deleted from sys:

import sys
# sys.setdefaultencoding() does not exist, here!
reload(sys)  # Reload does the trick!
sys.setdefaultencoding('UTF8')

(Note for Python 3.4+: reload() is in the importlib library.)

This is not a safe thing to do, though: this is obviously a hack, since sys.setdefaultencoding() is purposely removed from sys when Python starts. Reenabling it and changing the default encoding can break code that relies on ASCII being the default (this code can be third-party, which would generally make fixing it impossible or dangerous).

I have included an example here which demonstrates how you might store the mask in a database column as an int, and how you would reinstate the mask later on:

public enum DaysBitMask { Mon=0, Tues=1, Wed=2, Thu = 4, Fri = 8, Sat = 16, Sun = 32 }


DaysBitMask mask = DaysBitMask.Sat | DaysBitMask.Thu;
bool test;
if ((mask & DaysBitMask.Sat) == DaysBitMask.Sat)
    test = true;
if ((mask & DaysBitMask.Thu) == DaysBitMask.Thu)
    test = true;
if ((mask & DaysBitMask.Wed) != DaysBitMask.Wed)
    test = true;

// Store the value
int storedVal = (int)mask;

// Reinstate the mask and re-test
DaysBitMask reHydratedMask = (DaysBitMask)storedVal;

if ((reHydratedMask & DaysBitMask.Sat) == DaysBitMask.Sat)
    test = true;
if ((reHydratedMask & DaysBitMask.Thu) == DaysBitMask.Thu)
    test = true;
if ((reHydratedMask & DaysBitMask.Wed) != DaysBitMask.Wed)
    test = true;

Short solution:

const query = {}
const projection = {}
const options = { sort: { id: 1 }, limit: 2, skip: 10 }

Room.find(query, projection, options).exec(function(err, docs) { ... });

After some research on managing configs for development and builds etc, I decided to roll my own, I have made it available on bitbucket at: https://bitbucket.org/brightertools/contemplate/wiki/Home

This multiple configuration files for multiple environments, its a basic configuration entry replacement tool that will work with any text based file format.

Hope this helps.

Right click your project--->Build path---->configure Build path----> Libraries Tab--->Add External jars--->(Navigate to the location where you have kept the sql driver jar)--->ok

I'm using tesseract OCR engine with TessNet2 (a C# wrapper - http://www.pixel-technology.com/freeware/tessnet2/).

Some basic code:

using tessnet2;

...

Bitmap image = new Bitmap(@"u:\user files\bwalker\2849257.tif");
            tessnet2.Tesseract ocr = new tessnet2.Tesseract();
            ocr.SetVariable("tessedit_char_whitelist", "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz.,$-/#&=()\"':?"); // Accepted characters
            ocr.Init(@"C:\Users\bwalker\Documents\Visual Studio 2010\Projects\tessnetWinForms\tessnetWinForms\bin\Release\", "eng", false); // Directory of your tessdata folder
            List<tessnet2.Word> result = ocr.DoOCR(image, System.Drawing.Rectangle.Empty);
            string Results = "";
            foreach (tessnet2.Word word in result)
            {
                Results += word.Confidence + ", " + word.Text + ", " + word.Left + ", " + word.Top + ", " + word.Bottom + ", " + word.Right + "\n";
            }

Type checking

You can check the type of variable by using typeof operator:

typeof variable

Value checking

The code below returns true for numbers and false for anything else:

!isNaN(+variable);

You could use numpy.arange.

EDIT: The docs prefer numpy.linspace. _{Thanks @Droogans for noticing =)}

There's one big difference between CLOCK_REALTIME and MONOTONIC. CLOCK_REALTIME can jump forward or backward according to NTP. By default, NTP allows the clock rate to be speeded up or slowed down by up to 0.05%, but NTP cannot cause the monotonic clock to jump forward or backward.

Use the event listener's own function remove(). For example:

getEventListeners().click.forEach((e)=>{e.remove()})

You could do this:

for idx, item in enumerate(list):
   if 'foo' in item:
       item = replace_all(...)
       list[idx] = item

The answer is in the JavaDoc of the equals() method:

Unlike compareTo, this method considers two BigDecimal objects equal only if they are equal in value and scale (thus 2.0 is not equal to 2.00 when compared by this method).

In other words: equals() checks if the BigDecimal objects are exactly the same in every aspect. compareTo() "only" compares their numeric value.

As to why equals() behaves this way, this has been answered in this SO question.

If you are using netbeans 7 and greater with oracle xe do the following on netbeans :

1. go to services tab
2. under servers, remove glassfish
3. add back glassfish server
4. input port number 9090 for http access

Glassfish can use that one if available or some random port number is created

It is the difference between greedy and non-greedy quantifiers.

Consider the input 101000000000100.

Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match extra characters until it matches 1, eventually matching 101.

All quantifiers have a non-greedy mode: .*?, .+?, .{2,6}?, and even .??.

In your case, a similar pattern could be <([^>]*)> - matching anything but a greater-than sign (strictly speaking, it matches zero or more characters other than > in-between < and >).

See Quantifier Cheat Sheet.

git difftool tag/branch filename

I've seen alot of different solutions for this. iisreset did the trick for me.

Just open an elevated command prompt and type:

iisreset

To give the second rule higher specificity you can always use parts of the first rule. In this case I would add table.rule1 trfrom rule one and add it to rule two.

table.rule1 tr td {
    background-color: #ff0000;
}

table.rule1 tr td.rule2 {
    background-color: #ffff00;
}

After a while I find this gets natural, but I know some people disagree. For those people I would suggest looking into LESS or SASS.

According to 'Getting Started With LLVM Core Libraries' book (c):

In fact, the name LLVM might refer to any of the following:

• The LLVM project/infrastructure: This is an umbrella for several projects that, together, form a complete compiler: frontends, backends, optimizers, assemblers, linkers, libc++, compiler-rt, and a JIT engine. The word "LLVM" has this meaning, for example, in the following sentence: "LLVM is comprised of several projects".

• An LLVM-based compiler: This is a compiler built partially or completely with the LLVM infrastructure. For example, a compiler might use LLVM for the frontend and backend but use GCC and GNU system libraries to perform the final link. LLVM has this meaning in the following sentence, for example: "I used LLVM to compile C programs to a MIPS platform".

• LLVM libraries: This is the reusable code portion of the LLVM infrastructure. For example, LLVM has this meaning in the sentence: "My project uses LLVM to generate code through its Just-in-Time compilation framework".

• LLVM core: The optimizations that happen at the intermediate language level and the backend algorithms form the LLVM core where the project started. LLVM has this meaning in the following sentence: "LLVM and Clang are two different projects".

• The LLVM IR: This is the LLVM compiler intermediate representation. LLVM has this meaning when used in sentences such as "I built a frontend that translates my own language to LLVM".

Use del /F /Q to force deletion of read-only files (/F) and directories and not ask to confirm (/Q) when deleting via wildcard.

While it's possible to do a proper modulo by checking whether the value is negative and correct it if it is (the way many have suggested), there is a more compact solution.

(a % b + b) % b

This will first do the modulo, limiting the value to the -b -> +b range and then add b in order to ensure that the value is positive, letting the next modulo limit it to the 0 -> b range.

Note: If b is negative, the result will also be negative

<?php
$address = 'BTM 2nd Stage, Bengaluru, Karnataka 560076'; // Address
$apiKey = 'api-key'; // Google maps now requires an API key.
// Get JSON results from this request
$geo = file_get_contents('https://maps.googleapis.com/maps/api/geocode/json?address='.urlencode($address).'&sensor=false&key='.$apiKey);
$geo = json_decode($geo, true); // Convert the JSON to an array

if (isset($geo['status']) && ($geo['status'] == 'OK')) {
  $latitude = $geo['results'][0]['geometry']['location']['lat']; // Latitude
  $longitude = $geo['results'][0]['geometry']['location']['lng']; // Longitude
}
?>

The list returned by Arrays.asList() might be immutable. Could you try

List<String> list = new ArrayList(Arrays.asList(split));

For anyone who is populating programmatically and looking to get an index, you might notice that the checkedId changes as you return to the activity/fragment and you re-add those radio buttons. One way to get around that is to set a tag with the index:

    for(int i = 0; i < myNames.length; i++) {
        rB = new RadioButton(getContext());
        rB.setText(myNames[i]);
        rB.setTag(i);
        myRadioGroup.addView(rB,i);
    }

Then in your listener:

    myRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {
            RadioButton radioButton = (RadioButton) group.findViewById(checkedId);
            int mySelectedIndex = (int) radioButton.getTag();
        }
    });

There are several ways to do it. The subplots method creates the figure along with the subplots that are then stored in the ax array. For example:

import matplotlib.pyplot as plt

x = range(10)
y = range(10)

fig, ax = plt.subplots(nrows=2, ncols=2)

for row in ax:
    for col in row:
        col.plot(x, y)

plt.show()

However, something like this will also work, it's not so "clean" though since you are creating a figure with subplots and then add on top of them:

fig = plt.figure()

plt.subplot(2, 2, 1)
plt.plot(x, y)

plt.subplot(2, 2, 2)
plt.plot(x, y)

plt.subplot(2, 2, 3)
plt.plot(x, y)

plt.subplot(2, 2, 4)
plt.plot(x, y)

plt.show()

len(os.sched_getaffinity(0)) is what you usually want

https://docs.python.org/3/library/os.html#os.sched_getaffinity

os.sched_getaffinity(0) (added in Python 3) returns the set of CPUs available considering the sched_setaffinity Linux system call, which limits which CPUs a process and its children can run on.

0 means to get the value for the current process. The function returns a set() of allowed CPUs, thus the need for len().

multiprocessing.cpu_count() and os.cpu_count() on the other hand just returns the total number of physical CPUs.

The difference is especially important because certain cluster management systems such as Platform LSF limit job CPU usage with sched_getaffinity.

Therefore, if you use multiprocessing.cpu_count(), your script might try to use way more cores than it has available, which may lead to overload and timeouts.

We can see the difference concretely by restricting the affinity with the taskset utility, which allows us to control the affinity of a process.

Minimal taskset example

For example, if I restrict Python to just 1 core (core 0) in my 16 core system:

taskset -c 0 ./main.py

with the test script:

main.py

#!/usr/bin/env python3

import multiprocessing
import os

print(multiprocessing.cpu_count())
print(os.cpu_count())
print(len(os.sched_getaffinity(0)))

then the output is:

16
16
1

Vs nproc

nproc does respect the affinity by default and:

taskset -c 0 nproc

outputs:

1

and man nproc makes that quite explicit:

print the number of processing units available

Therefore, len(os.sched_getaffinity(0)) behaves like nproc by default.

nproc has the --all flag for the less common case that you want to get the physical CPU count without considering taskset:

taskset -c 0 nproc --all

os.cpu_count documentation

The documentation of os.cpu_count also briefly mentions this https://docs.python.org/3.8/library/os.html#os.cpu_count

This number is not equivalent to the number of CPUs the current process can use. The number of usable CPUs can be obtained with len(os.sched_getaffinity(0))

The same comment is also copied on the documentation of multiprocessing.cpu_count: https://docs.python.org/3/library/multiprocessing.html#multiprocessing.cpu_count

From the 3.8 source under Lib/multiprocessing/context.py we also see that multiprocessing.cpu_count just forwards to os.cpu_count, except that the multiprocessing one throws an exception instead of returning None if os.cpu_count fails:

    def cpu_count(self):
        '''Returns the number of CPUs in the system'''
        num = os.cpu_count()
        if num is None:
            raise NotImplementedError('cannot determine number of cpus')
        else:
            return num

3.8 availability: systems with a native sched_getaffinity function

The only downside of this os.sched_getaffinity is that this appears to be UNIX only as of Python 3.8.

cpython 3.8 seems to just try to compile a small C hello world with a sched_setaffinity function call during configuration time, and if not present HAVE_SCHED_SETAFFINITY is not set and the function will likely be missing:

• https://github.com/python/cpython/blob/v3.8.5/configure#L11523
• https://github.com/python/cpython/blob/v3.8.5/Modules/posixmodule.c#L6457

psutil.Process().cpu_affinity(): third-party version with a Windows port

The third-party psutil package (pip install psutil) had been mentioned at: https://stackoverflow.com/a/14840102/895245 but not the cpu_affinity function: https://psutil.readthedocs.io/en/latest/#psutil.Process.cpu_affinity

Usage:

import psutil
print(len(psutil.Process().cpu_affinity()))

This function does the same as the standard library os.sched_getaffinity on Linux, but they have also implemented it for Windows by making a call to the GetProcessAffinityMask Windows API function:

• https://github.com/giampaolo/psutil/blob/ee60bad610822a7f630c52922b4918e684ba7695/psutil/_psutil_windows.c#L1112
• https://docs.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getprocessaffinitymask

So in other words: those Windows users have to stop being lazy and send a patch to the upstream stdlib :-)

Tested in Ubuntu 16.04, Python 3.5.2.

Another Alternative for those who are probing around and/or in interactive mode:

$Error[0].Exception.LoaderExceptions

Note: [0] grabs the most recent Error from the stack

Emoji

You can use colors for text as others mentioned in their answers.

But you can use emojis instead! for example, you can use?? for warning messages and for error messages.

Or simply use these notebooks as a color:

: error message
: warning message
: ok status message
: action message
: canceled status message
: Or anything you like and want to recognize immediately by color

Bonus:

This method also helps you to quickly scan and find logs directly in the source code.

_{But Linux default emoji font is not colorful by default and you may want to make them colorful, first.}

The advantages of an abstract class are:

• Ability to specify default implementations of methods
• Added invariant checking to functions
• Have slightly more control in how the "interface" methods are called
• Ability to provide behavior related or unrelated to the interface for "free"

Interfaces are merely data passing contracts and do not have these features. However, they are typically more flexible as a type can only be derived from one class, but can implement any number of interfaces.

Update

C# 7.0 now has binary literals, which is awesome.

[Flags]
enum Days
{
    None = 0,
    Sunday    = 0b0000001,
    Monday    = 0b0000010,   // 2
    Tuesday   = 0b0000100,   // 4
    Wednesday = 0b0001000,   // 8
    Thursday  = 0b0010000,   // 16
    Friday    = 0b0100000,   // etc.
    Saturday  = 0b1000000,
    Weekend = Saturday | Sunday,
    Weekdays = Monday | Tuesday | Wednesday | Thursday | Friday
}

Original Post

Since the topic seems to have turned to declaring bit-based flag values in enums, I thought it would be worth pointing out a handy trick for this sort of thing. The left-shift operator (<<) will allow you to push a bit to a specific binary position. Combine that with the ability to declare enum values in terms of other values in the same class, and you have a very easy-to-read declarative syntax for bit flag enums.

[Flags]
enum Days
{
    None        = 0,
    Sunday      = 1,
    Monday      = 1 << 1,   // 2
    Tuesday     = 1 << 2,   // 4
    Wednesday   = 1 << 3,   // 8
    Thursday    = 1 << 4,   // 16
    Friday      = 1 << 5,   // etc.
    Saturday    = 1 << 6,
    Weekend     = Saturday | Sunday,
    Weekdays    = Monday | Tuesday | Wednesday | Thursday | Friday
}

If your SQL Server table has a column of type INT IDENTITY (or BIGINT IDENTITY), then you can get the latest inserted value using:

INSERT INTO dbo.YourTable(columns....)
   VALUES(..........)

SELECT SCOPE_IDENTITY()

This works as long as you haven't inserted another row - it just returns the last IDENTITY value handed out in this scope here.

There are at least two more options - @@IDENTITY and IDENT_CURRENT - read more about how they works and in what way they're different (and might give you unexpected results) in this excellent blog post by Pinal Dave here.

C++11 added alias declarations, which are generalization of typedef, allowing templates:

template <size_t N>
using Vector = Matrix<N, 1>;

The type Vector<3> is equivalent to Matrix<3, 1>.

In C++03, the closest approximation was:

template <size_t N>
struct Vector
{
    typedef Matrix<N, 1> type;
};

Here, the type Vector<3>::type is equivalent to Matrix<3, 1>.

You can use this:

select
    table_name,column_name,referenced_table_name,referenced_column_name
from
    information_schema.key_column_usage
where
    referenced_table_name is not null
    and table_schema = 'my_database' 
    and table_name = 'my_table'

Or for better formatted output use this:

select
    concat(table_name, '.', column_name) as 'foreign key',  
    concat(referenced_table_name, '.', referenced_column_name) as 'references'
from
    information_schema.key_column_usage
where
    referenced_table_name is not null
    and table_schema = 'my_database' 
    and table_name = 'my_table'

Since any DateTime can be cast to a float, and the decimal part of the number represent the time itself:

DECLARE @date DATETIME = GETDATE()

SELECT CAST(CAST(@date AS FLOAT) - FLOOR(CAST(@date AS FLOAT)) AS DATETIME

This will result a datetime like '1900-01-01 hour of the day' you can cast it as time, timestamp or even use convert to get the formatted time.

I guess this works in any version of SQL since cast a datetime to float is compatible since version 2005.

Hope it helps.

I just recently had this error. What fixed it for me was to close a chrome window that was running the inspector. I have it pop out its own window whenever I inspect a web page. Did not need to disable or change anything on visual studio.

In MySQL TRUE and FALSE are synonyms for TINYINT(1).

So therefore its basically the same thing, but MySQL is converting to 0/1 - so just use a TINYINT if that's easier for you

P.S.
The performance is likely to be so minuscule (if at all), that if you need to ask on StackOverflow, then it won't affect your database :)

Apart from what people have already mentioned I am just introducing indexes to the mix.

So imagine a large collection, with let's say over 1 million documents and you have to run a query like this.

The WiredTiger Internal cache will have to keep all that data in the cache if you have to run this query on it, if not that data will be fed into the WT Internal Cache either from FS Cache or Disk before the retrieval from DB is done (in batches if being called for from a driver connected to database & given that 1 million documents are not returned in 1 go, cursor comes into play)

Covered query can be an alternative. Copying the text from docs directly.

When an index covers a query, MongoDB can both match the query conditions and return the results using only the index keys; i.e. MongoDB does not need to examine documents from the collection to return the results.

When an index covers a query, the explain result has an IXSCAN stage that is not a descendant of a FETCH stage, and in the executionStats, the totalDocsExamined is 0.

Query :  db.getCollection('qaa').find({roll_no : {$gte : 0}},{_id : 0, roll_no : 1})

Index : db.getCollection('qaa').createIndex({roll_no : 1})

If the index here is in WT Internal Cache then it would be a straight forward process to get the values. An index has impact on the write performance of the system thus this would make more sense if the reads are a plenty compared to the writes.

One way:

public string GetOSVersion()
{
  int _MajorVersion = Environment.OSVersion.Version.Major;

  switch (_MajorVersion) {
    case 5:
      return "Windows XP";
    case 6:
      switch (Environment.OSVersion.Version.Minor) {
        case 0:
          return "Windows Vista";
        case 1:
          return "Windows 7";
        default:
          return "Windows Vista & above";
      }
      break;
    default:
      return "Unknown";
  }
}

Then simply do wrap a select case around the function.

You could take any of the answers above that use the string.length method and replace it with string.size.

They both work the same way.

if string.size <= 25
  puts "No problem here!"
else
  puts "Sorry too long!"
end

https://ruby-doc.org/core-2.4.0/String.html#method-i-size

With formulas, what you can do is:

• in a new column (say col D - cell D2), add =COUNTA(A2:C2)
• drag this formula till the end of your data (say cell D4 in our example)
• add a last formula to sum it up (e.g in cell D5): =SUM(D2:D4)

Visual studio community edition is bundled with xamarin and which is free as well.

I have faced the same problem and i have installed mysql-connector-net-8.0.11. But in visual studio is not showing the db connector for mysql. Then I was installed the mysql-for-visualstudio-1.2.8 and run the visual studio. Its working fine.

Thank you!

request.getParameterValues("select2") returns an array of all submitted values.

There's a library called deepmerge on GitHub: That seems to be getting some traction. It's a standalone, available through both the npm and bower package managers.

I would be inclined to use or improve on this instead of copy-pasting code from answers.

For me the solution is to kill zombie IIS express worker processes.

e.g. locate in Task Manager and end task.

This is from a php script which solves the problem perfectly with every browser I've tested (FF since 3.5, IE8+, Chrome)

header("Content-Disposition: attachment; filename=\"".$fname_local."\"");
header("Content-Type: application/force-download");
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".filesize($fname));

So as far as I can see, you're doing everything correctly. Have you checked your browser settings?

For CentOS 8 your /etc/httpd/conf.d/awstats.conf file needs to look like this and you need to stick in your IP address and restart your httpd service unless you want to whole world to have access to it!

#
# Directives to add to your Apache conf file to allow use of AWStats as a CGI.
# Note that path "/usr/share/awstats/" must reflect your AWStats install path.
#
Alias /awstatsclasses "/usr/share/awstats/wwwroot/classes/"
Alias /awstatscss "/usr/share/awstats/wwwroot/css/"
Alias /awstatsicons "/usr/share/awstats/wwwroot/icon/"
ScriptAlias /awstats/ "/usr/share/awstats/wwwroot/cgi-bin/"
#
# This is to permit URL access to scripts/files in AWStats directory.
#
<Directory "/usr/share/awstats/wwwroot">
    Options None
    AllowOverride None
    <IfModule mod_authz_core.c>
        # Apache 2.4
        <RequireAny>
           Require <Your IP Address here>
        </RequireAny>
    </IfModule>
    <IfModule !mod_authz_core.c>
        # Apache 2.2
        Allow from <Your IP address here>
        Allow from ::1
    </IfModule>
</Directory>
# Additional Perl modules
<IfModule mod_env.c>
    SetEnv PERL5LIB /usr/share/awstats/lib:/usr/share/awstats/plugins
</IfModule>

Remember that if you IP address changes you need to update the file and restart the httpd server. BTW you can see your ip address as it looks from the outside by simply googling "my ip"

Try:

SELECT * FROM table1
    LEFT OUTER JOIN table2
    ON table1.FirstName = table2.FirstName and table1.LastName=table2.LastName
    WHERE table2.BirthDate IS NULL

'data' should be a stringified JavaScript object:

data: JSON.stringify({ "userName": userName, "password" : password })

To send your formData, pass it to stringify:

data: JSON.stringify(formData)

Some servers also require the application/json content type:

contentType: 'application/json'

There's also a more detailed answer to a similar question here: Jquery Ajax Posting json to webservice