What you really want is the jQuery URL Parser plugin. With this plugin, getting the value of a specific URL parameter (for the current URL) looks like this:

$.url().param('foo');

If you want an object with parameter names as keys and parameter values as values, you'd just call param() without an argument, like this:

$.url().param();

This library also works with other urls, not just the current one:

$.url('http://allmarkedup.com?sky=blue&grass=green').param();
$('#myElement').url().param(); // works with elements that have 'src', 'href' or 'action' attributes

Since this is an entire URL parsing library, you can also get other information from the URL, like the port specified, or the path, protocol etc:

var url = $.url('http://allmarkedup.com/folder/dir/index.html?item=value');
url.attr('protocol'); // returns 'http'
url.attr('path'); // returns '/folder/dir/index.html'

It has other features as well, check out its homepage for more docs and examples.

Instead of writing your own URI parser for this specific purpose that kinda works in most cases, use an actual URI parser. Depending on the answer, code from other answers can return 'null' instead of null, doesn't work with empty parameters (?foo=&bar=x), can't parse and return all parameters at once, repeats the work if you repeatedly query the URL for parameters etc.

Use an actual URI parser, don't invent your own.

For those averse to jQuery, there's a version of the plugin that's pure JS.

I see great examples above but they all start with curly brackets (json map). Another option is to return a result based on computation. The result can also be a list of css class names (not just map). Example:

ng-class="(status=='active') ? 'enabled' : 'disabled'"

or

ng-class="(status=='active') ? ['enabled'] : ['disabled', 'alik']"

Explanation: If the status is active, the class enabled will be used. Otherwise, the class disabled will be used.

The list [] is used for using multiple classes (not just one).

If you must use || with switch then you can try :

$v = 1;
switch (true) {
    case ($v == 1 || $v == 2):
        echo 'the value is either 1 or 2';
        break;
}

If not your preferred solution would have been

switch($v) {
    case 1:
    case 2:
        echo "the value is either 1 or 2";
        break;
}

The issue is that both method is not efficient when dealing with large cases ... imagine 1 to 100 this would work perfectly

$r1 = range(1, 100);
$r2 = range(100, 200);
$v = 76;
switch (true) {
    case in_array($v, $r1) :
        echo 'the value is in range 1 to 100';
        break;
    case in_array($v, $r2) :
        echo 'the value is in range 100 to 200';
        break;
}

//Arrange the Picture Of Path.***

    if (openFileDialog1.ShowDialog() == DialogResult.OK)
                {
                    pictureBox1.Image = Image.FromFile(openFileDialog1.FileName);

                    string[] PicPathArray;
                    string ArrangePathOfPic;

                    PicPathArray = openFileDialog1.FileName.Split('\\');

                    ArrangePathOfPic = PicPathArray[0] + "\\\\" + PicPathArray[1];
                    for (int a = 2; a < PicPathArray.Length; a++)
                    {
                        ArrangePathOfPic = ArrangePathOfPic + "\\\\" + PicPathArray[a];
                    }
               }

// Save the path Of Pic in database

                    SqlConnection con = new SqlConnection("Data Source=baqar-pc\\baqar;Initial Catalog=Prac;Integrated Security=True");
                    con.Open();

                    SqlCommand cmd = new SqlCommand("insert into PictureTable (Pic_Path) values (@Pic_Path)", con);
                    cmd.Parameters.Add("@Pic_Path", SqlDbType.VarChar).Value = ArrangePathOfPic;

                    cmd.ExecuteNonQuery();

***// Get the Picture Path in Database.***

SqlConnection con = new SqlConnection("Data Source=baqar-pc\\baqar;Initial Catalog=Prac;Integrated Security=True");
                con.Open();

                SqlCommand cmd = new SqlCommand("Select * from Pic_Path where ID = @ID", con);

                SqlDataAdapter adp = new SqlDataAdapter();
                cmd.Parameters.Add("@ID",SqlDbType.VarChar).Value = "1";
                adp.SelectCommand = cmd;

                DataTable DT = new DataTable();

                adp.Fill(DT);

                DataRow DR = DT.Rows[0];
                pictureBox1.Image = Image.FromFile(DR["Pic_Path"].ToString());

Step 1: Add new column with integer or numeric as per your requirement

Step 2: Populate data from varchar column to numeric column

Step 3: drop varchar column

Step 4: change new numeric column name as per old varchar column

Using sqldf and standard sql to get the maximum values grouped by another variable

https://cran.r-project.org/web/packages/sqldf/sqldf.pdf

library(sqldf)
sqldf("select max(Value),Gene from df1 group by Gene")

or

Using the excellent Hmisc package for a groupby application of function (max) https://www.rdocumentation.org/packages/Hmisc/versions/4.0-3/topics/summarize

library(Hmisc)
summarize(df1$Value,df1$Gene,max)

This is what I was looking for and I did for sorting an Array of Arrays based on another Array:

It's On^3 and might not be the best practice(ES6)

function sortArray(arr, arr1){_x000D_
      return arr.map(item => {_x000D_
        let a = [];_x000D_
        for(let i=0; i< arr1.length; i++){_x000D_
          for (const el of item) {_x000D_
            if(el == arr1[i]){_x000D_
              a.push(el);_x000D_
            }   _x000D_
            }_x000D_
          }_x000D_
          return a;_x000D_
      });_x000D_
    }_x000D_
    _x000D_
    const arr1 = ['fname', 'city', 'name'];_x000D_
  const arr = [['fname', 'city', 'name'],_x000D_
  ['fname', 'city', 'name', 'name', 'city','fname']];_x000D_
  console.log(sortArray(arr,arr1));

This can be done without regex which is more efficient:

var questionText = "1 ding ?"
var index = 0;
var num = "";
do
{
    num += questionText[index];
} while (questionText[++index] >= "0" && questionText[index] <= "9");
questionText = questionText.substring(num.length);

And as a bonus, it also stores the number, which may be useful to some people.

I had to change the js file, so to include "function()" at the beginning of it, and also "()" at the end line. That solved the problem

use this function derived from link provided by IJas

function openFbPopUp() {
    var fburl = '';
    var fbimgurl = 'http://';
    var fbtitle = 'Your title';
    var fbsummary = "your description";
    var sharerURL = "http://www.facebook.com/sharer/sharer.php?s=100&p[url]=" + encodeURI(fburl) + "&p[images][0]=" + encodeURI(fbimgurl) + "&p[title]=" + encodeURI(fbtitle) + "&p[summary]=" + encodeURI(fbsummary);
    window.open(
      sharerURL,
      'facebook-share-dialog', 
      'width=626,height=436'); 
    return  false;
}

Or you can also use the latest FB.ui Function if using FB JavaScript SDK for more controlled callback function.

refer: FB.ui

    function openFbPopUp() {
        FB.ui(
          {
            method: 'feed',
            name: 'Facebook Dialogs',
            link: 'https://developers.facebook.com/docs/dialogs/',
            picture: 'http://fbrell.com/f8.jpg',
            caption: 'Reference Documentation',
            description: 'Dialogs provide a simple, consistent interface for applications to interface with users.'
          },
          function(response) {
            if (response && response.post_id) {
              alert('Post was published.');
            } else {
              alert('Post was not published.');
            }
          }
        );
    }

If you have latitude and longitude, you can use any part or all of bellow URL

https://www.google.com/maps/@LATITUDE,LONGITUDE,ZOOMNUMBERz?hl=LANGUAGE

For example: https://www.google.com/maps/@31.839472,54.361167,18z?hl=en

To slow down your game, use pygame.clock.tick(10)

Bluetooth 4.0 Allows you in a Bluetooth piconet one master can communicate up to 7 active slaves, there can be some other devices up to 248 devices which sleeping.

Also you can use some slaves as bridge to participate with more devices.

It is going to write the value of your property model.Destination

This is by design. You'll want to populate your Destination property with the value you want in your controller before returning your view.

I confirm that git and msysgit can coexist on the same computer, as mentioned in "Which GIT version to use cygwin or msysGit or both?".

1. Git for Windows (msysgit) will run in its own shell (dos with git-cmd.bat or bash with Git Bash.vbs)
   Update 2016: msysgit is obsolete, and the new Git for Windows now uses msys2

2. Git on Cygwin, after installing its package, will run in its own cygwin bash shell.

3. Finally, since Q3 2016 and the "Windows 10 anniversary update", you can use Git in a bash (an actual Ubuntu(!) bash).

In there, you can do a sudo apt-get install git-core and start using git on project-sources present either on the WSL container's "native" file-system (see below), or in the hosting Windows's file-system through the /mnt/c/..., /mnt/d/... directory hierarchies.

Specifically for the Bash on Windows or WSL (Windows Subsystem for Linux):

• It is a light-weight virtualization container (technically, a "Drawbridge" pico-process,
• hosting an unmodified "headless" Linux distribution (i.e. Ubuntu minus the kernel),
• which can execute terminal-based commands (and even X-server client apps if an X-server for Windows is installed),
• with emulated access to the Windows file-system (meaning that, apart from reduced performance, encodings for files in DrvFs emulated file-system may not behave the same as files on the native VolFs file-system).

• Unfortunately, it cannot invoke back into Windows executables, or
• interact with any native drivers (i.e. so no Graphic card, no USB drives yet).

ipdb is like pdb, with the awesomeness of ipython.

If you are using a BLL/DAL setup try the iif when reading into the object in the DAL

While reader.Read()
 colDropdownListNames.Add(New DDLItem( _
 CType(reader("rid"), Integer), _
 CType(reader("Item_Status"), String), _
 CType(reader("Text_Show"), String), _
 CType( IIf(IsDBNull(reader("Text_Use")), "", reader("Text_Use")) , String), _
 CType(reader("Text_SystemOnly"), String), _
 CType(reader("Parent_rid"), Integer)))
End While

some refs =>

...
<head>
    // CSRF for all ajax call
    <meta name="csrf-token" content="{{ csrf_token() }}" />
</head>
 ...
 ...
<script>
    // CSRF for all ajax call
    $.ajaxSetup({ headers: { 'X-CSRF-TOKEN': jQuery('meta[name="csrf-token"]').attr('content') } });
</script>
...

The yum install php-soap command will install the Soap module for php 5.x

For installing the correct version for your environment I recommend to create a file info.php and put this code: <?php echo phpinfo(); ?>

In the header you'll see the version you're using:

Now that you know the correct version you can run this command: yum search php-soap

This command will return the avaliable versions:

php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php54-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php55-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php56-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php70-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php71-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php72-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php73-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
php74-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
rh-php70-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
rh-php71-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol
rh-php72-php-soap.x86_64 : A module for PHP applications that use the SOAP protocol

Now you just need to choose the correct module to your php version.

For this example, you should run this command php72-php-soap.x86_64

People will offer you obfuscators, but no amount of obfuscation can prevent someone from getting at your code. None. If your computer can run it, or in the case of movies and music if it can play it, the user can get at it. Even compiling it to machine code just makes the job a little more difficult. If you use an obfuscator, you are just fooling yourself. Worse, you're also disallowing your users from fixing bugs or making modifications.

Music and movie companies haven't quite come to terms with this yet, they still spend millions on DRM.

In interpreted languages like PHP and Perl it's trivial. Perl used to have lots of code obfuscators, then we realized you can trivially decompile them.

perl -MO=Deparse some_program

PHP has things like DeZender and Show My Code.

My advice? Write a license and get a lawyer. The only other option is to not give out the code and instead run a hosted service.

See also the perlfaq entry on the subject.

Manually add it when you build the query:

SELECT 'Site1' AS SiteName, t1.column, t1.column2
FROM t1

UNION ALL
SELECT 'Site2' AS SiteName, t2.column, t2.column2
FROM t2

UNION ALL
...

EXAMPLE:

DECLARE @t1 TABLE (column1 int, column2 nvarchar(1))
DECLARE @t2 TABLE (column1 int, column2 nvarchar(1))

INSERT INTO @t1
SELECT 1, 'a'
UNION SELECT 2, 'b'

INSERT INTO @t2
SELECT 3, 'c'
UNION SELECT 4, 'd'


SELECT 'Site1' AS SiteName, t1.column1, t1.column2
FROM @t1 t1

UNION ALL
SELECT 'Site2' AS SiteName, t2.column1, t2.column2
FROM @t2 t2

RESULT:

SiteName  column1  column2
Site1       1      a
Site1       2      b
Site2       3      c
Site2       4      d

from np.random import permutation
from sklearn.datasets import load_iris
iris = load_iris()
X = iris.data #numpy array
y = iris.target #numpy array

# Data is currently unshuffled; we should shuffle 
# each X[i] with its corresponding y[i]
perm = permutation(len(X))
X = X[perm]
y = y[perm]

I had the same problem - "R" missing. And none of the advices given here helped. Fortunately, I've found the reason - somehow Eclipse got lost the Project-Properties-target. It was unset. I don't know till now, what had done it, but setting it back helped. So, attention - missing R can mean the missing target, too!

Delete this option from registry helped me in Windows Server 2012 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangAlgorithms

An expression is a combination of values, variables, and operators. A value all by itself is considered an expression, and so is a variable, so the following are all legal expressions:

>>> 42
42
>>> n
17
>>> n + 25
42

When you type an expression at the prompt, the interpreter evaluates it, which means that it finds the value of the expression. In this example, n has the value 17 and n + 25 has the value 42.

A statement is a unit of code that has an effect, like creating a variable or displaying a value.

>>> n = 17
>>> print(n)

The first line is an assignment statement that gives a value to n. The second line is a print statement that displays the value of n. When you type a statement, the interpreter executes it, which means that it does whatever the statement says. In general, statements don’t have values.

This can be useful - thinkpython2 by Allen B. Downey

As I'm beginner for vba, I'm willing to get a deep knowledge of vba of how all excel in-built functions work form there back.

So as on the above question I have putted my basic efforts.

Function multi_add(a As Range, ParamArray b() As Variant) As Double

    Dim ele As Variant

    Dim i As Long

    For Each ele In a
        multi_add = a + ele.Value **- a**
    Next ele

    For i = LBound(b) To UBound(b)
        For Each ele In b(i)
            multi_add = multi_add + ele.Value
        Next ele
    Next i

End Function

- a: This is subtracted for above code cause a count doubles itself so what values you adds it will add first value twice.

In "References", import DAO 3.6 object reference.

private sub showTableData

dim db as dao.database
dim rs as dao.recordset

set db = currentDb
set rs = db.OpenRecordSet("myTable") 'myTable is a MS-Access table created previously

'populate the table
rs.movelast
rs.movefirst

do while not rs.EOF
   debug.print(rs!myField) 'myField is a field name in table myTable
   rs.movenext             'press Ctrl+G to see debuG window beneath
loop

msgbox("End of Table")

end sub

You can interate data objects like queries and filtered tables in different ways:

Trhough query:

private sub showQueryData

dim db as dao.database
dim rs as dao.recordset
dim sqlStr as string

sqlStr = "SELECT * FROM customers as c WHERE c.country='Brazil'"

set db = currentDb
set rs = db.openRecordset(sqlStr)

rs.movefirst

do while not rs.EOF
  debug.print("cust ID: " & rs!id & " cust name: " & rs!name)
  rs.movenext
loop

msgbox("End of customers from Brazil")

end sub

You should also look for "Filter" property of the recordset object to filter only the desired records and then interact with them in the same way (see VB6 Help in MS-Access code window), or create a "QueryDef" object to run a query and use it as a recordset too (a little bit more tricky). Tell me if you want another aproach.

I hope I've helped.

I too faced the same error. One solution that worked for me was to add the following lines in your service.ts file instead of import 'rxjs/add/operator/map':

import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';

For an example, my app.service.ts after debugging was like,

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { map } from 'rxjs/operators';

@Injectable()
export class AppService {
    constructor(private http: HttpClient) {}
    getData(): Observable<any> {
        return this.http.get('https://samples.openweathermap.org/data/2.5/history/city?q=Warren,OH&appid=b6907d289e10d714a6e88b30761fae22')
        .pipe(map(result => result));
    }
}

Using React Functional Components:

const [option,setOption] = useState()

function handleChange(event){
    setOption(event.target.value)
}

<select name='option' onChange={handleChange}>
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
</select>

Using guava:

List<String> stringList=Lists.transform(list,new Function<Object,String>(){
    @Override
    public String apply(Object arg0) {
        if(arg0!=null)
            return arg0.toString();
        else
            return "null";
    }
});

json might not be the best choice for on-disk formats; The trouble it has with appending data is a good example of why this might be. Specifically, json objects have a syntax that means the whole object must be read and parsed in order to understand any part of it.

Fortunately, there are lots of other options. A particularly simple one is CSV; which is supported well by python's standard library. The biggest downside is that it only works well for text; it requires additional action on the part of the programmer to convert the values to numbers or other formats, if needed.

Another option which does not have this limitation is to use a sqlite database, which also has built-in support in python. This would probably be a bigger departure from the code you already have, but it more naturally supports the 'modify a little bit' model you are apparently trying to build.

$('#check1').prop('checked', true).uniform(); 
$('#check1').prop('checked', false).uniform(); 

This worked for me.

you can do that

var filteredFileList = fileList.Where(fl => filterList.Contains(fl.ToString()));

The return type depends on the server, sometimes the response is indeed a JSON array but sent as text/plain

Setting the accept headers in the request should get the correct type:

client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); 

which can then be serialized to a JSON list or array. Thanks for the comment from @svick which made me curious that it should work.

The Exception I got without configuring the accept headers was System.Net.Http.UnsupportedMediaTypeException.

Following code is cleaner and should work (untested, but works in my case):

    var client = new HttpClient();
    client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    var response = await client.GetAsync("http://api.usa.gov/jobs/search.json?query=nursing+jobs");
    var model = await response.Content.ReadAsAsync<List<Job>>();

// NOTE: Using "this.pass" and "this.name" will create a global variable even though it is inside the function, so be weary of your naming convention

function submit()
{
    var userPass = document.getElementById("pass").value;
    var userName = document.getElementById("user").value;
    this.pass = userPass;
    this.name = userName; 
    alert("whatever you want to display"); 
}

Here you go:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>bluantinoo CSS Grayscale Bg Image Sample</title>
<style type="text/css">
    div {
        border: 1px solid black;
        padding: 5px;
        margin: 5px;
        width: 600px;
        height: 600px;
        float: left;
        color: white;
    }
     .grayscale {
         background: url(yourimagehere.jpg);
         -moz-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -o-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -webkit-filter: grayscale(100%);
         filter: gray;
         filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
     }

    .nongrayscale {
        background: url(yourimagehere.jpg);
    }
</style>
</head>
<body>
    <div class="nongrayscale">
        this is a non-grayscale of the bg image
    </div>
    <div class="grayscale">
        this is a grayscale of the bg image
    </div>
</body>
</html>

Tested it in FireFox, Chrome and IE. I've also attached an image to show my results of my implementation of this.

EDIT: Also, if you want the image to just toggle back and forth with jQuery, here's the page source for that...I've included the web link to jQuery and and image that's online so you should just be able to copy/paste to test it out:

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>bluantinoo CSS Grayscale Bg Image Sample</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<style type="text/css">
    div {
        border: 1px solid black;
        padding: 5px;
        margin: 5px;
        width: 600px;
        height: 600px;
        float: left;
        color: white;
    }
     .grayscale {
         background: url(http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg);
         -moz-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -o-filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
         -webkit-filter: grayscale(100%);
         filter: gray;
         filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale");
     }

    .nongrayscale {
        background: url(http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg);
    }
</style>
    <script type="text/javascript">
        $(document).ready(function () {
            $("#image").mouseover(function () {
                $(".nongrayscale").removeClass().fadeTo(400,0.8).addClass("grayscale").fadeTo(400, 1);
            });
            $("#image").mouseout(function () {
                $(".grayscale").removeClass().fadeTo(400, 0.8).addClass("nongrayscale").fadeTo(400, 1);
            });
        });
</script>
</head>
<body>
    <div id="image" class="nongrayscale">
        rollover this image to toggle grayscale
    </div>
</body>
</html>

EDIT 2 (For IE10-11 Users): The solution above will not work with the changes Microsoft has made to the browser as of late, so here's an updated solution that will allow you to grayscale (or desaturate) your images.

<svg>_x000D_
  <defs>_x000D_
    <filter xmlns="http://www.w3.org/2000/svg" id="desaturate">_x000D_
      <feColorMatrix type="saturate" values="0" />_x000D_
    </filter>_x000D_
  </defs>_x000D_
  <image xlink:href="http://www.polyrootstattoo.com/images/Artists/Buda/40.jpg" width="600" height="600" filter="url(#desaturate)" />_x000D_
</svg>

df.iloc[i] returns the ith row of df. i does not refer to the index label, i is a 0-based index.

In contrast, the attribute index returns actual index labels, not numeric row-indices:

df.index[df['BoolCol'] == True].tolist()

or equivalently,

df.index[df['BoolCol']].tolist()

You can see the difference quite clearly by playing with a DataFrame with a non-default index that does not equal to the row's numerical position:

df = pd.DataFrame({'BoolCol': [True, False, False, True, True]},
       index=[10,20,30,40,50])

In [53]: df
Out[53]: 
   BoolCol
10    True
20   False
30   False
40    True
50    True

[5 rows x 1 columns]

In [54]: df.index[df['BoolCol']].tolist()
Out[54]: [10, 40, 50]

If you want to use the index,

In [56]: idx = df.index[df['BoolCol']]

In [57]: idx
Out[57]: Int64Index([10, 40, 50], dtype='int64')

then you can select the rows using loc instead of iloc:

In [58]: df.loc[idx]
Out[58]: 
   BoolCol
10    True
40    True
50    True

[3 rows x 1 columns]

Note that loc can also accept boolean arrays:

In [55]: df.loc[df['BoolCol']]
Out[55]: 
   BoolCol
10    True
40    True
50    True

[3 rows x 1 columns]

If you have a boolean array, mask, and need ordinal index values, you can compute them using np.flatnonzero:

In [110]: np.flatnonzero(df['BoolCol'])
Out[112]: array([0, 3, 4])

Use df.iloc to select rows by ordinal index:

In [113]: df.iloc[np.flatnonzero(df['BoolCol'])]
Out[113]: 
   BoolCol
10    True
40    True
50    True

The problem with camel case is that there are often different interpretations of words - for example, checkinService vs checkInService. Going along with Aaron's answer, it is difficult with auto-completion if you have many similarly named repos to have to constantly check if the person who created the repo you care about used a certain breakdown of the upper and lower cases. avoid upper case.

His point about dashes is also well-advised.

1. use lower case.
2. use dashes.
3. be specific. you may find you have to differentiate between similar ideas later - ie use purchase-rest-service instead of service or rest-service.
4. be consistent. consider usage from the various GIT vendors - how do you want your repositories to be sorted/grouped?

<meta http-equiv="refresh" content="2; url=http://example.com/" />

Here 2 is delay in seconds.

Write it as a one-liner:

figure('position', [0, 0, 200, 500])  % create new figure with specified size  

Here is the OOP way of adding a colorbar:

fig, ax = plt.subplots()
im = ax.scatter(x, y, c=c)
fig.colorbar(im, ax=ax)

Once you have markers on the map, you can retrieve the Lat/Long coordinates through the API and use this to set the map's center. You'll first just need to determine which marker you wish to center on - I'll leave that up to you.

// "marker" refers to the Marker object you wish to center on

var latLng = marker.getPosition(); // returns LatLng object
map.setCenter(latLng); // setCenter takes a LatLng object

Info windows are separate objects which are typically bound to a marker, so to open the info window you might do something like this (however it will depend on your code):

var infoWindow = marker.infoWindow; // retrieve the InfoWindow object
infoWindow.open(map); // Trigger the "open()" method

Hope this helps.

Douglas Crockford, the author of jslint has written (and spoken) about this issue many times. There's a section on this page of his website which covers this:

for Statement

A for class of statements should have the following form:

for (initialization; condition; update) {
    statements
}

for (variable in object) {
    if (filter) {
        statements
    } 
}

The first form should be used with arrays and with loops of a predeterminable number of iterations.

The second form should be used with objects. Be aware that members that are added to the prototype of the object will be included in the enumeration. It is wise to program defensively by using the hasOwnProperty method to distinguish the true members of the object:

for (variable in object) {
    if (object.hasOwnProperty(variable)) {
        statements
    } 
}

Crockford also has a video series on YUI theater where he talks about this. Crockford's series of videos/talks about javascript are a must see if you're even slightly serious about javascript.

run this codes worked for me, seems to be issue with version.

pip uninstall numpy

pip install numpy==1.19.3

The question is already answered, however when I first saw it I thought of NodeJS Buffer. But it is way slower than the +, so it is likely that nothing can be faster than + in string concetanation.

Tested with the following code:

function a(){
    var s = "hello";
    var p = "world";
    s = s + p;
    return s;
}

function b(){
    var s = new Buffer("hello");
    var p = new Buffer("world");
    s = Buffer.concat([s,p]);
    return s;
}

var times = 100000;

var t1 = new Date();
for( var i = 0; i < times; i++){
    a();
}

var t2 = new Date();
console.log("Normal took: " + (t2-t1) + " ms.");
for ( var i = 0; i < times; i++){
    b();
}

var t3 = new Date();

console.log("Buffer took: " + (t3-t2) + " ms.");

Output:

Normal took: 4 ms.
Buffer took: 458 ms.

For linux systems, you can – starting from major version 20.04 of the docker engine – now also communicate with the host via host.docker.internal. This won't work automatically, but you need to provide the following run flag:

--add-host=host.docker.internal:host-gateway

See

• https://github.com/moby/moby/pull/40007#issuecomment-578729356
• https://github.com/docker/for-linux/issues/264#issuecomment-598864064

-webkit-padding-start: 0;

will remove padding added by webkit engine

Well, the short answer is "because that's the way the compiler designers designed it." Realistically, though, your collection object is null, so there's no way for the compiler to get the enumerator to loop through the collection.

If you really need to do something like this, try the null coalescing operator:

int[] array = null;

foreach (int i in array ?? Enumerable.Empty<int>())
{
   System.Console.WriteLine(string.Format("{0}", i));
}

Change the body element into a flex container and the div into a flex item:

body {_x000D_
  display: flex;_x000D_
  height: 100vh;_x000D_
  margin: 0;_x000D_
}_x000D_
_x000D_
div {_x000D_
  flex: 1;_x000D_
  background: tan;_x000D_
}

<div></div>

I know this is late but the answers are pretty old, I thought my benchmarks might help as I have just tested in PHP 7.4

Serialize/Unserialize is much faster than JSON, takes less memory and space, and wins outright in PHP 7.4 but I am not sure my test is the most efficient or the best,

I have basically created a PHP file which returns an array which I encoded, serialised, then decoded and unserialised.

$array = include __DIR__.'/../tests/data/dao/testfiles/testArray.php';

//JSON ENCODE
$json_encode_memory_start = memory_get_usage();
$json_encode_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $encoded = json_encode($array);
}

$json_encode_time_end = microtime(true);
$json_encode_memory_end = memory_get_usage();
$json_encode_time = $json_encode_time_end - $json_encode_time_start;
$json_encode_memory = 
$json_encode_memory_end - $json_encode_memory_start;


//SERIALIZE
$serialize_memory_start = memory_get_usage();
$serialize_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $serialized = serialize($array);
}

$serialize_time_end = microtime(true);
$serialize_memory_end = memory_get_usage();
$serialize_time = $serialize_time_end - $serialize_time_start;
$serialize_memory = $serialize_memory_end - $serialize_memory_start;


//Write to file time:
$fpc_memory_start = memory_get_usage();
$fpc_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $fpc_bytes = 
    file_put_contents(
        __DIR__.'/../tests/data/dao/testOneBigFile',
        '<?php return '.var_export($array,true).' ?>;'
    );
}

$fpc_time_end = microtime(true);
$fpc_memory_end = memory_get_usage();
$fpc_time = $fpc_time_end - $fpc_time_start;
$fpc_memory = $fpc_memory_end - $fpc_memory_start;


//JSON DECODE
$json_decode_memory_start = memory_get_usage();
$json_decode_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $decoded = json_encode($encoded);
}

$json_decode_time_end = microtime(true);
$json_decode_memory_end = memory_get_usage();
$json_decode_time = $json_decode_time_end - $json_decode_time_start;
$json_decode_memory = 
$json_decode_memory_end - $json_decode_memory_start;


//UNSERIALIZE
$unserialize_memory_start = memory_get_usage();
$unserialize_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $unserialized = unserialize($serialized);
}

$unserialize_time_end = microtime(true);
$unserialize_memory_end = memory_get_usage();
$unserialize_time = $unserialize_time_end - $unserialize_time_start;
$unserialize_memory = 
$unserialize_memory_end - $unserialize_memory_start;


//GET FROM VAR EXPORT:
$var_export_memory_start = memory_get_usage();
$var_export_time_start = microtime(true);

for ($i=0; $i < 20000; $i++) { 
    $array = include __DIR__.'/../tests/data/dao/testOneBigFile';
}

$var_export_time_end = microtime(true);
$var_export_memory_end = memory_get_usage();
$var_export_time = $var_export_time_end - $var_export_time_start;
$var_export_memory = $var_export_memory_end - $var_export_memory_start;

Results:

Var Export length: 11447 Serialized length: 11541 Json encoded length: 11895 file put contents Bytes: 11464

Json Encode Time: 1.9197590351105 Serialize Time: 0.160325050354 FPC Time: 6.2793469429016

Json Encode Memory: 12288 Serialize Memory: 12288 FPC Memory: 0

JSON Decoded time: 1.7493588924408 UnSerialize Time: 0.19309520721436 Var Export and Include: 3.1974139213562

JSON Decoded memory: 16384 UnSerialize Memory: 14360 Var Export and Include: 192

It's impossible, and for a good reason (for one, think about all those catch(Exception){} around).

If you want to continue execution after stack overflow, run dangerous code in a different AppDomain. CLR policies can be set to terminate current AppDomain on overflow without affecting original domain.

If you setup your select like the following:

<select ng-model="myselect" ng-options="b for b in options track by b"></select>

you will get:

<option value="var1">var1</option>
<option value="var2">var2</option>
<option value="var3">var3</option>

working fiddle: http://jsfiddle.net/x8kCZ/15/

 DataClassesDataContext dc = new DataClassesDataContext();

 FamilyDetail fd = dc.FamilyDetails.Single(p => p.UserId == 1);

 fd.FatherName=txtFatherName.Text;
        fd.FatherMobile=txtMobile.Text;
        fd.FatherOccupation=txtFatherOccu.Text;
        fd.MotherName=txtMotherName.Text;
        fd.MotherOccupation=txtMotherOccu.Text;
        fd.Phone=txtPhoneNo.Text;
        fd.Address=txtAddress.Text;
        fd.GuardianName=txtGardianName.Text;

        dc.SubmitChanges();

I just spent like 40 minutes trying to debug a non-working /status with:

$ SCRIPT_NAME=/status SCRIPT_FILENAME=/status QUERY_STRING= REQUEST_METHOD=GET cgi-fcgi -bind -connect /var/run/php5-fpm.sock

It just produced "File not found" error, while the actual scripts (that are found on the filesystem) worked just fine.

Turned out, I had a couple of orphaned processes of php5-fpm. After I killed everything and restarted php5-fpm cleanly, it just went back to normal.

Hope this helps.

This is a mistake:

m.check(side);

That code has to go inside a function. Your class definition can only contain declarations and functions.

Classes don't "run", they provide a blueprint for how to make an object.

The line Message m; means that an Orderbook will contain Message called m, if you later create an Orderbook.

The size of array must be greater than zero. ?therwise you will have unexpected results.

function zoomeExtends(){
  var bounds = new google.maps.LatLngBounds();
  if (markers.length>0) { 
      for (var i = 0; i < markers.length; i++) {
         bounds.extend(markers[i].getPosition());
        }    
        myMap.fitBounds(bounds);
    }
}

<% @images.each_with_index do |page, index| %>

<% end %>

What you want is called an associative array. In python these are called dictionaries.

Dictionaries are sometimes found in other languages as “associative memories” or “associative arrays”. Unlike sequences, which are indexed by a range of numbers, dictionaries are indexed by keys, which can be any immutable type; strings and numbers can always be keys.

myDict = {}
myDict["john"] = "johns value"
myDict["jeff"] = "jeffs value"

Alternative way to create the above dict:

myDict = {"john": "johns value", "jeff": "jeffs value"}

Accessing values:

print(myDict["jeff"]) # => "jeffs value"

Getting the keys (in Python v2):

print(myDict.keys()) # => ["john", "jeff"]

In Python 3, you'll get a dict_keys, which is a view and a bit more efficient (see views docs and PEP 3106 for details).

print(myDict.keys()) # => dict_keys(['john', 'jeff']) 

If you want to learn about python dictionary internals, I recommend this ~25 min video presentation: https://www.youtube.com/watch?v=C4Kc8xzcA68. It's called the "The Mighty Dictionary".

Another option might be to merge with strategy ours to the commit before the range and then a 'normal' merge with the last commit of that range (or branch when it is the last one). So suppose only 2345 and 3456 commits of master to be merged into feature branch:

master:
1234
2345
3456
4567

in feature branch:

git merge -s ours 4567
git merge 2345

You can also plot to a png file using gnuplot (which is free):

terminal commands

gnuplot> set title '<title>'
gnuplot> set ylabel '<yLabel>'
gnuplot> set xlabel '<xLabel>'
gnuplot> set grid
gnuplot> set term png
gnuplot> set output '<Output file name>.png'
gnuplot> plot '<fromfile.csv>'

note: you always need to give the right extension (.png here) at set output

Then it is also possible that the ouput is not lines, because your data is not continues. To fix this simply change the 'plot' line to:

plot '<Fromfile.csv>' with line lt -1 lw 2

More line editing options (dashes and line color ect.) at: http://gnuplot.sourceforge.net/demo_canvas/dashcolor.html

• gnuplot is available in most linux distros via the package manager (e.g. on an apt based distro, run apt-get install gnuplot)
• gnuplot is available in windows via Cygwin
• gnuplot is available on macOS via homebrew (run brew install gnuplot)

Use below code to find key is exist or not in JsonObject. has("key") method is used to find keys in JsonObject.

containerObject = new JSONObject(container);
//has method
if (containerObject.has("video")) {
    //get Value of video
    String video = containerObject.optString("video");
}

If you are using optString("key") method to get String value then don't worry about keys are existing or not in the JsonObject.

In my case where I wanted to have something like this:

I had to follow the same thing as suggested by @Mdlc but probably slightly simpler (targeting only >= 21):

    //kotlin
    val windowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager
    val realSize = Point()
    windowManager.defaultDisplay.getRealSize(realSize);
    val usableRect = Rect()
    windowManager.defaultDisplay.getRectSize(usableRect)
    Toast.makeText(this, "Usable Screen: " + usableRect + " real:"+realSize, Toast.LENGTH_LONG).show()

    window.decorView.setPadding(usableRect.left, usableRect.top, realSize.x - usableRect.right, realSize.y - usableRect.bottom)

It works on landscape too:

Edit The above solution does not work correctly in multi-window mode where the usable rectangle is not smaller just due to the navigation bar but also because of custom window size. One thing that I noticed is that in multi-window the navigation bar is not hovering over the app so even with no changes to DecorView padding we have the correct behaviour:

Note the difference between how navigation bar is hovering over the bottom of the app in these to scenarios. Fortunately, this is easy to fix. We can check if app is multi window. The code below also includes the part to calculate and adjust the position of toolbar (full solution: https://stackoverflow.com/a/14213035/477790)

    // kotlin
    // Let the window flow into where window decorations are
    window.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN)
    window.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS)

    // calculate where the bottom of the page should end up, considering the navigation bar (back buttons, ...)
    val windowManager = getSystemService(Context.WINDOW_SERVICE) as WindowManager
    val realSize = Point()
    windowManager.defaultDisplay.getRealSize(realSize);
    val usableRect = Rect()
    windowManager.defaultDisplay.getRectSize(usableRect)
    Toast.makeText(this, "Usable Screen: " + usableRect + " real:" + realSize, Toast.LENGTH_LONG).show()

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N || !isInMultiWindowMode) {
        window.decorView.setPadding(usableRect.left, usableRect.top, realSize.x - usableRect.right, realSize.y - usableRect.bottom)
        // move toolbar/appbar further down to where it should be and not to overlap with status bar
        val layoutParams = ConstraintLayout.LayoutParams(appBarLayout.layoutParams as ConstraintLayout.LayoutParams)
        layoutParams.topMargin = getSystemSize(Constants.statusBarHeightKey)
        appBarLayout.layoutParams = layoutParams
    }

Result on Samsung popup mode:

in case regular expressions is not a must, wouldn't it be better to just ask the browser to decide using eval ?

function isValidVarName( name ) {
    try {
        // Update, previoulsy it was
        // eval('(function() { var ' + name + '; })()');
        Function('var ' + name);
    } catch( e ) {
        return false;
    }
    return true;
}

isValidVarName('my_var');     // true
isValidVarName('1');          // false

Use &

SCSS

.container {
    background:red;
    color:white;

    &.hello {
        padding-left:50px;
    }
}

https://sass-lang.com/documentation/style-rules/parent-selector

just changed Application's target framework to ".Net Framework 4".

And error got Disappeared.

good luck; :D

I think currently your api's actually responding the way it should. The first 100 records on the page in the overall order of objects you are maintaining. Your explanation tells that you are using some kind of ordering ids to define the order of your objects for pagination.

Now, in case you want that page 2 should always start from 101 and end at 200, then you must make the number of entries on the page as variable, since they are subject to deletion.

You should do something like the below pseudocode:

page_max = 100
def get_page_results(page_no) :

    start = (page_no - 1) * page_max + 1
    end = page_no * page_max

    return fetch_results_by_id_between(start, end)

If you are working with character variables (note that stringsAsFactors is false here) you can use replace:

junk <- data.frame(x <- rep(LETTERS[1:4], 3), y <- letters[1:12], stringsAsFactors = FALSE)
colnames(junk) <- c("nm", "val")

junk$nm <- replace(junk$nm, junk$nm == "B", "b")
junk
#    nm val
# 1   A   a
# 2   b   b
# 3   C   c
# 4   D   d
# ...

You don't say which version of Excel you are using. This is written for 2007/2010 (a different apprach is required for Excel 2003 )

You also don't say how you are calling addDataToTable and what you are passing into arrData.
I'm guessing you are passing a 0 based array. If this is the case (and the Table starts in Column A) then iCount will count from 0 and .Cells(lLastRow + 1, iCount) will try to reference column 0 which is invalid.

You are also not taking advantage of the ListObject. Your code assumes the ListObject1 is located starting at row 1. If this is not the case your code will place the data in the wrong row.

Here's an alternative that utilised the ListObject

Sub MyAdd(ByVal strTableName As String, ByRef arrData As Variant)
    Dim Tbl As ListObject
    Dim NewRow As ListRow

    ' Based on OP 
    ' Set Tbl = Worksheets(4).ListObjects(strTableName)
    ' Or better, get list on any sheet in workbook
    Set Tbl = Range(strTableName).ListObject
    Set NewRow = Tbl.ListRows.Add(AlwaysInsert:=True)

    ' Handle Arrays and Ranges
    If TypeName(arrData) = "Range" Then
        NewRow.Range = arrData.Value
    Else
        NewRow.Range = arrData
    End If
End Sub

Can be called in a variety of ways:

Sub zx()
    ' Pass a variant array copied from a range
    MyAdd "MyTable", [G1:J1].Value
    ' Pass a range
    MyAdd "MyTable", [G1:J1]
    ' Pass an array
    MyAdd "MyTable", Array(1, 2, 3, 4)
End Sub

public void setUp() throws Exception {

 System.setProperty("webdriver.chrome.driver","Absolute path of Chrome driver");

 driver =new ChromeDriver();
 baseUrl = "URL/";

    driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
  }

A major difference between them is that value-type variables store values, so specifying a value-type variable in a method call passes a copy of that variable's value to the method. Reference-type variables store references to objects, so specifying a reference-type variable as an argument passes the method a copy of the actual reference that refers to the object. Even though the reference itself is passed by value, the method can still use the reference it receives to interact with—and possibly modify—the original object. Similarly, when returning information from a method via a return statement, the method returns a copy of the value stored in a value-type variable or a copy of the reference stored in a reference-type variable. When a reference is returned, the calling method can use that reference to interact with the referenced object. So, in effect, objects are always passed by reference.

In c#, to pass a variable by reference so the called method can modify the variable's, C# provides keywords ref and out. Applying the ref keyword to a parameter declaration allows you to pass a variable to a method by reference—the called method will be able to modify the original variable in the caller. The ref keyword is used for variables that already have been initialized in the calling method. Normally, when a method call contains an uninitialized variable as an argument, the compiler generates an error. Preceding a parameter with keyword out creates an output parameter. This indicates to the compiler that the argument will be passed into the called method by reference and that the called method will assign a value to the original variable in the caller. If the method does not assign a value to the output parameter in every possible path of execution, the compiler generates an error. This also prevents the compiler from generating an error message for an uninitialized variable that is passed as an argument to a method. A method can return only one value to its caller via a return statement, but can return many values by specifying multiple output (ref and/or out) parameters.

see c# discussion and examples here link text

Simple Alternative

Just use a query string.

Routing

config.Routes.MapHttpRoute(
    name: "DefaultApi",
    routeTemplate: "api/{controller}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

Controller

public class TestController : ApiController
{
    public IEnumerable<SomeViewModel> Get()
    {
    }

    public SomeViewModel GetById(int objectId)
    {
    }
}

Requests

GET /Test
GET /Test?objectId=1

Note

Keep in mind that the query string param should not be "id" or whatever the parameter is in the configured route.

Just adding another solution that works for me.. You can simply append it in the marker options:

var marker = new google.maps.Marker({
    map: map, 
    position: position,

    // Custom Attributes / Data / Key-Values
    store_id: id,
    store_address: address,
    store_type: type
});

And then retrieve them with:

marker.get('store_id');
marker.get('store_address');
marker.get('store_type');

Check out the connection strings web site which has tons of example for your connection strings.

Basically, you need three things:

• name of the server you want to connect to (use "." or (local) or localhost for the local machine)
• name of the database you want to connect to
• some way of defining the security - either integrated Windows security, or define a user name / password combo

For example, if you want to connect to your local machine and the AdventureWorks database using integrated security, use:

server=(local);database=AdventureWorks;integrated security=SSPI;

Or if you have SQL Server Express on your machine in the default installation, and you want to connect to the AdventureWorksLT2008 database, use this:

server=.\SQLExpress;database=AdventureWorksLT2008;integrated Security=SSPI;

An optional in Swift is a type that can hold either a value or no value. Optionals are written by appending a ? to any type:

var name: String? = "Bertie"

Optionals (along with Generics) are one of the most difficult Swift concepts to understand. Because of how they are written and used, it's easy to get a wrong idea of what they are. Compare the optional above to creating a normal String:

var name: String = "Bertie" // No "?" after String

From the syntax it looks like an optional String is very similar to an ordinary String. It's not. An optional String is not a String with some "optional" setting turned on. It's not a special variety of String. A String and an optional String are completely different types.

Here's the most important thing to know: An optional is a kind of container. An optional String is a container which might contain a String. An optional Int is a container which might contain an Int. Think of an optional as a kind of parcel. Before you open it (or "unwrap" in the language of optionals) you won't know if it contains something or nothing.

You can see how optionals are implemented in the Swift Standard Library by typing "Optional" into any Swift file and ?-clicking on it. Here's the important part of the definition:

enum Optional<Wrapped> {
    case none
    case some(Wrapped)
}

Optional is just an enum which can be one of two cases: .none or .some. If it's .some, there's an associated value which, in the example above, would be the String "Hello". An optional uses Generics to give a type to the associated value. The type of an optional String isn't String, it's Optional, or more precisely Optional<String>.

Everything Swift does with optionals is magic to make reading and writing code more fluent. Unfortunately this obscures the way it actually works. I'll go through some of the tricks later.

Note: I'll be talking about optional variables a lot, but it's fine to create optional constants too. I mark all variables with their type to make it easier to understand type types being created, but you don't have to in your own code.

How to create optionals

To create an optional, append a ? after the type you wish to wrap. Any type can be optional, even your own custom types. You can't have a space between the type and the ?.

var name: String? = "Bob" // Create an optional String that contains "Bob"
var peter: Person? = Person() // An optional "Person" (custom type)

// A class with a String and an optional String property
class Car {
var modelName: String // must exist
var internalName: String? // may or may not exist
}

Using optionals

You can compare an optional to nil to see if it has a value:

var name: String? = "Bob"
name = nil // Set name to nil, the absence of a value
if name != nil {
    print("There is a name")
}
if name == nil { // Could also use an "else"
    print("Name has no value")
}

This is a little confusing. It implies that an optional is either one thing or another. It's either nil or it's "Bob". This is not true, the optional doesn't transform into something else. Comparing it to nil is a trick to make easier-to-read code. If an optional equals nil, this just means that the enum is currently set to .none.

Only optionals can be nil

If you try to set a non-optional variable to nil, you'll get an error.

var red: String = "Red"
red = nil // error: nil cannot be assigned to type 'String'

Another way of looking at optionals is as a complement to normal Swift variables. They are a counterpart to a variable which is guaranteed to have a value. Swift is a careful language that hates ambiguity. Most variables are define as non-optionals, but sometimes this isn't possible. For example, imagine a view controller which loads an image either from a cache or from the network. It may or may not have that image at the time the view controller is created. There's no way to guarantee the value for the image variable. In this case you would have to make it optional. It starts as nil and when the image is retrieved, the optional gets a value.

Using an optional reveals the programmers intent. Compared to Objective-C, where any object could be nil, Swift needs you to be clear about when a value can be missing and when it's guaranteed to exist.

To use an optional, you "unwrap" it

An optional String cannot be used in place of an actual String. To use the wrapped value inside an optional, you have to unwrap it. The simplest way to unwrap an optional is to add a ! after the optional name. This is called "force unwrapping". It returns the value inside the optional (as the original type) but if the optional is nil, it causes a runtime crash. Before unwrapping you should be sure there's a value.

var name: String? = "Bob"
let unwrappedName: String = name!
print("Unwrapped name: \(unwrappedName)")

name = nil
let nilName: String = name! // Runtime crash. Unexpected nil.

Checking and using an optional

Because you should always check for nil before unwrapping and using an optional, this is a common pattern:

var mealPreference: String? = "Vegetarian"
if mealPreference != nil {
    let unwrappedMealPreference: String = mealPreference!
    print("Meal: \(unwrappedMealPreference)") // or do something useful
}

In this pattern you check that a value is present, then when you are sure it is, you force unwrap it into a temporary constant to use. Because this is such a common thing to do, Swift offers a shortcut using "if let". This is called "optional binding".

var mealPreference: String? = "Vegetarian"
if let unwrappedMealPreference: String = mealPreference {
    print("Meal: \(unwrappedMealPreference)") 
}

This creates a temporary constant (or variable if you replace let with var) whose scope is only within the if's braces. Because having to use a name like "unwrappedMealPreference" or "realMealPreference" is a burden, Swift allows you to reuse the original variable name, creating a temporary one within the bracket scope

var mealPreference: String? = "Vegetarian"
if let mealPreference: String = mealPreference {
    print("Meal: \(mealPreference)") // separate from the other mealPreference
}

Here's some code to demonstrate that a different variable is used:

var mealPreference: String? = "Vegetarian"
if var mealPreference: String = mealPreference {
    print("Meal: \(mealPreference)") // mealPreference is a String, not a String?
    mealPreference = "Beef" // No effect on original
}
// This is the original mealPreference
print("Meal: \(mealPreference)") // Prints "Meal: Optional("Vegetarian")"

Optional binding works by checking to see if the optional equals nil. If it doesn't, it unwraps the optional into the provided constant and executes the block. In Xcode 8.3 and later (Swift 3.1), trying to print an optional like this will cause a useless warning. Use the optional's debugDescription to silence it:

print("\(mealPreference.debugDescription)")

What are optionals for?

Optionals have two use cases:

1. Things that can fail (I was expecting something but I got nothing)
2. Things that are nothing now but might be something later (and vice-versa)

Some concrete examples:

• A property which can be there or not there, like middleName or spouse in a Person class
• A method which can return a value or nothing, like searching for a match in an array
• A method which can return either a result or get an error and return nothing, like trying to read a file's contents (which normally returns the file's data) but the file doesn't exist
• Delegate properties, which don't always have to be set and are generally set after initialization
• For weak properties in classes. The thing they point to can be set to nil at any time
• A large resource that might have to be released to reclaim memory
• When you need a way to know when a value has been set (data not yet loaded > the data) instead of using a separate dataLoaded Boolean

Optionals don't exist in Objective-C but there is an equivalent concept, returning nil. Methods that can return an object can return nil instead. This is taken to mean "the absence of a valid object" and is often used to say that something went wrong. It only works with Objective-C objects, not with primitives or basic C-types (enums, structs). Objective-C often had specialized types to represent the absence of these values (NSNotFound which is really NSIntegerMax, kCLLocationCoordinate2DInvalid to represent an invalid coordinate, -1 or some negative value are also used). The coder has to know about these special values so they must be documented and learned for each case. If a method can't take nil as a parameter, this has to be documented. In Objective-C, nil was a pointer just as all objects were defined as pointers, but nil pointed to a specific (zero) address. In Swift, nil is a literal which means the absence of a certain type.

Comparing to nil

You used to be able to use any optional as a Boolean:

let leatherTrim: CarExtras? = nil
if leatherTrim {
    price = price + 1000
}

In more recent versions of Swift you have to use leatherTrim != nil. Why is this? The problem is that a Boolean can be wrapped in an optional. If you have Boolean like this:

var ambiguous: Boolean? = false

it has two kinds of "false", one where there is no value and one where it has a value but the value is false. Swift hates ambiguity so now you must always check an optional against nil.

You might wonder what the point of an optional Boolean is? As with other optionals the .none state could indicate that the value is as-yet unknown. There might be something on the other end of a network call which takes some time to poll. Optional Booleans are also called "Three-Value Booleans"

Swift tricks

Swift uses some tricks to allow optionals to work. Consider these three lines of ordinary looking optional code;

var religiousAffiliation: String? = "Rastafarian"
religiousAffiliation = nil
if religiousAffiliation != nil { ... }

None of these lines should compile.

• The first line sets an optional String using a String literal, two different types. Even if this was a String the types are different
• The second line sets an optional String to nil, two different types
• The third line compares an optional string to nil, two different types

I'll go through some of the implementation details of optionals that allow these lines to work.

Creating an optional

Using ? to create an optional is syntactic sugar, enabled by the Swift compiler. If you want to do it the long way, you can create an optional like this:

var name: Optional<String> = Optional("Bob")

This calls Optional's first initializer, public init(_ some: Wrapped), which infers the optional's associated type from the type used within the parentheses.

The even longer way of creating and setting an optional:

var serialNumber:String? = Optional.none
serialNumber = Optional.some("1234")
print("\(serialNumber.debugDescription)")

Setting an optional to nil

You can create an optional with no initial value, or create one with the initial value of nil (both have the same outcome).

var name: String?
var name: String? = nil

Allowing optionals to equal nil is enabled by the protocol ExpressibleByNilLiteral (previously named NilLiteralConvertible). The optional is created with Optional's second initializer, public init(nilLiteral: ()). The docs say that you shouldn't use ExpressibleByNilLiteral for anything except optionals, since that would change the meaning of nil in your code, but it's possible to do it:

class Clint: ExpressibleByNilLiteral {
    var name: String?
    required init(nilLiteral: ()) {
        name = "The Man with No Name"
    }
}

let clint: Clint = nil // Would normally give an error
print("\(clint.name)")

The same protocol allows you to set an already-created optional to nil. Although it's not recommended, you can use the nil literal initializer directly:

var name: Optional<String> = Optional(nilLiteral: ())

Comparing an optional to nil

Optionals define two special "==" and "!=" operators, which you can see in the Optional definition. The first == allows you to check if any optional is equal to nil. Two different optionals which are set to .none will always be equal if the associated types are the same. When you compare to nil, behind the scenes Swift creates an optional of the same associated type, set to .none then uses that for the comparison.

// How Swift actually compares to nil
var tuxedoRequired: String? = nil
let temp: Optional<String> = Optional.none
if tuxedoRequired == temp { // equivalent to if tuxedoRequired == nil
    print("tuxedoRequired is nil")
}

The second == operator allows you to compare two optionals. Both have to be the same type and that type needs to conform to Equatable (the protocol which allows comparing things with the regular "==" operator). Swift (presumably) unwraps the two values and compares them directly. It also handles the case where one or both of the optionals are .none. Note the distinction between comparing to the nil literal.

Furthermore, it allows you to compare any Equatable type to an optional wrapping that type:

let numberToFind: Int = 23
let numberFromString: Int? = Int("23") // Optional(23)
if numberToFind == numberFromString {
    print("It's a match!") // Prints "It's a match!"
}

Behind the scenes, Swift wraps the non-optional as an optional before the comparison. It works with literals too (if 23 == numberFromString {)

I said there are two == operators, but there's actually a third which allow you to put nil on the left-hand side of the comparison

if nil == name { ... }

Naming Optionals

There is no Swift convention for naming optional types differently from non-optional types. People avoid adding something to the name to show that it's an optional (like "optionalMiddleName", or "possibleNumberAsString") and let the declaration show that it's an optional type. This gets difficult when you want to name something to hold the value from an optional. The name "middleName" implies that it's a String type, so when you extract the String value from it, you can often end up with names like "actualMiddleName" or "unwrappedMiddleName" or "realMiddleName". Use optional binding and reuse the variable name to get around this.

The official definition

From "The Basics" in the Swift Programming Language:

Swift also introduces optional types, which handle the absence of a value. Optionals say either “there is a value, and it equals x” or “there isn’t a value at all”. Optionals are similar to using nil with pointers in Objective-C, but they work for any type, not just classes. Optionals are safer and more expressive than nil pointers in Objective-C and are at the heart of many of Swift’s most powerful features.

Optionals are an example of the fact that Swift is a type safe language. Swift helps you to be clear about the types of values your code can work with. If part of your code expects a String, type safety prevents you from passing it an Int by mistake. This enables you to catch and fix errors as early as possible in the development process.

To finish, here's a poem from 1899 about optionals:

Yesterday upon the stair
I met a man who wasn’t there
He wasn’t there again today
I wish, I wish he’d go away
Antigonish

More resources:

• The Swift Programming Guide
• Optionals in Swift (Medium)
• WWDC Session 402 "Introduction to Swift" (starts around 14:15)
• More optional tips and tricks

From python3 onwards you can use

a == []

to check if the list is empty

EDIT : This works with python2.7 too..

I am not sure why there are so many complicated answers. It's pretty clear and straightforward

Declare a delegate, assign your text field to the delegate and then include these methods.

Assuming you have a login form with email and password text fields, this code will fit perfectly:

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    [self.emailTextField resignFirstResponder];
    [self.passwordTextField resignFirstResponder];

}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {

    if (self.emailTextField == textField) {
        [self.passwordTextField becomeFirstResponder];
    } else {
        [self.emailTextField resignFirstResponder];
        [self.passwordTextField resignFirstResponder];
    }
    return NO;
}
- (void)viewWillAppear:(BOOL)animated {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}

- (void)viewWillDisappear:(BOOL)animated {
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}

#pragma mark - keyboard movements
- (void)keyboardWillShow:(NSNotification *)notification
{
    CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;

    [UIView animateWithDuration:0.3 animations:^{
        CGRect f = self.view.frame;
        f.origin.y = -0.5f * keyboardSize.height;
        self.view.frame = f;
    }];
}

-(void)keyboardWillHide:(NSNotification *)notification
{
    [UIView animateWithDuration:0.3 animations:^{
        CGRect f = self.view.frame;
        f.origin.y = 0.0f;
        self.view.frame = f;
    }];
}

Pandas will recognise a value as null if it is a np.nan object, which will print as NaN in the DataFrame. Your missing values are probably empty strings, which Pandas doesn't recognise as null. To fix this, you can convert the empty stings (or whatever is in your empty cells) to np.nan objects using replace(), and then call dropna()on your DataFrame to delete rows with null tenants.

To demonstrate, we create a DataFrame with some random values and some empty strings in a Tenants column:

>>> import pandas as pd
>>> import numpy as np
>>> 
>>> df = pd.DataFrame(np.random.randn(10, 2), columns=list('AB'))
>>> df['Tenant'] = np.random.choice(['Babar', 'Rataxes', ''], 10)
>>> print df

          A         B   Tenant
0 -0.588412 -1.179306    Babar
1 -0.008562  0.725239         
2  0.282146  0.421721  Rataxes
3  0.627611 -0.661126    Babar
4  0.805304 -0.834214         
5 -0.514568  1.890647    Babar
6 -1.188436  0.294792  Rataxes
7  1.471766 -0.267807    Babar
8 -1.730745  1.358165  Rataxes
9  0.066946  0.375640         

Now we replace any empty strings in the Tenants column with np.nan objects, like so:

>>> df['Tenant'].replace('', np.nan, inplace=True)
>>> print df

          A         B   Tenant
0 -0.588412 -1.179306    Babar
1 -0.008562  0.725239      NaN
2  0.282146  0.421721  Rataxes
3  0.627611 -0.661126    Babar
4  0.805304 -0.834214      NaN
5 -0.514568  1.890647    Babar
6 -1.188436  0.294792  Rataxes
7  1.471766 -0.267807    Babar
8 -1.730745  1.358165  Rataxes
9  0.066946  0.375640      NaN

Now we can drop the null values:

>>> df.dropna(subset=['Tenant'], inplace=True)
>>> print df

          A         B   Tenant
0 -0.588412 -1.179306    Babar
2  0.282146  0.421721  Rataxes
3  0.627611 -0.661126    Babar
5 -0.514568  1.890647    Babar
6 -1.188436  0.294792  Rataxes
7  1.471766 -0.267807    Babar
8 -1.730745  1.358165  Rataxes

Try not to use JDK versions higher than the ones supported. I've actually ran into a very ambiguous problem a few months ago.

I had a jar library of my own that I compiled with JDK 8, and I was using it in my assignment. It was giving me some kind of preDexDebug error every time I tried running it. Eventually after hours of trying to decipher the error logs I finally had an idea of what was wrong. I checked the system requirements, changed compilers from 8 to 7, and it worked. Looks like putting my jar into a library cost me a few hours rather than save it...

iirc :

cat filename.txt | awk '{ print $2 $4 }'

or, as mentioned in the comments :

awk '{ print $2 $4 }' filename.txt

Below words come from the official document.

Form contains the parsed form data, including both the URL field's query parameters and the POST or PUT form data. This field is only available after ParseForm is called.

So, sample codes as below would work.

func parseRequest(req *http.Request) error {
    var err error

    if err = req.ParseForm(); err != nil {
        log.Error("Error parsing form: %s", err)
        return err
    }

    _ = req.Form.Get("xxx")

    return nil
}

My case was different but it might be the same case for others

for those who still couldn't find a solution and tried everything above, if you're using the adapter inside fragment then the reason it's not working fragment could be recreating so the adapter is recreating everytime the fragment recreate

you should verify if the adapter and objects list are null before initializing

if(adapter == null){_x000D_
  adapter = new CustomListAdapter(...);_x000D_
}_x000D_
..._x000D_
_x000D_
if(objects == null){_x000D_
  objects = new ArrayList<>();_x000D_
}

First you get full URL using HttpContext.Current.Request.Url.ToString(); then replace your method url using Replace("user/login", "").

Full code will be

string host = HttpContext.Current.Request.Url.ToString().Replace("user/login", "")

Ultimately you want to review the datetime documentation and become familiar with the formatting variables, but here are some examples to get you started:

import datetime

print('Timestamp: {:%Y-%m-%d %H:%M:%S}'.format(datetime.datetime.now()))
print('Timestamp: {:%Y-%b-%d %H:%M:%S}'.format(datetime.datetime.now()))
print('Date now: %s' % datetime.datetime.now())
print('Date today: %s' % datetime.date.today())

today = datetime.date.today()
print("Today's date is {:%b, %d %Y}".format(today))

schedule = '{:%b, %d %Y}'.format(today) + ' - 6 PM to 10 PM Pacific'
schedule2 = '{:%B, %d %Y}'.format(today) + ' - 1 PM to 6 PM Central'
print('Maintenance: %s' % schedule)
print('Maintenance: %s' % schedule2)

The output:

Timestamp: 2014-10-18 21:31:12

Timestamp: 2014-Oct-18 21:31:12

Date now: 2014-10-18 21:31:12.318340

Date today: 2014-10-18

Today's date is Oct, 18 2014

Maintenance: Oct, 18 2014 - 6 PM to 10 PM Pacific

Maintenance: October, 18 2014 - 1 PM to 6 PM Central

Reference link: https://docs.python.org/3.4/library/datetime.html#strftime-strptime-behavior

You should treat it as an array like this,

<input name="checkbox[]" type="checkbox" value="<?php echo $row['link_id']; ?>">

Then only, you can take its count and loop it for deletion.

You also need to pass the database connection to the query.

$result = mysqli_query($dbc, $sql);

Yours did not include it:

$result = mysqli_query($sql);

• Visit phpmyadmin
• Select your database and click on structure
• In front of your table, you can see Empty, click on it to clear all the entries from the selected table.

Or you can do the same using sql query:

Click on SQL present along side Structure

TRUNCATE tablename; //offers better performance, but used only when all entries need to be cleared
or
DELETE FROM tablename; //returns the number of rows deleted

Refer to DELETE and TRUNCATE for detailed documentaion

Without GNU extension:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    const char str1[] = "First";
    const char str2[] = "Second";
    char *res;

    res = malloc(strlen(str1) + strlen(str2) + 1);
    if (!res) {
        fprintf(stderr, "malloc() failed: insufficient memory!\n");
        return EXIT_FAILURE;
    }

    strcpy(res, str1);
    strcat(res, str2);

    printf("Result: '%s'\n", res);
    free(res);
    return EXIT_SUCCESS;
}

Alternatively with GNU extension:

#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    const char str1[] = "First";
    const char str2[] = "Second";
    char *res;

    if (-1 == asprintf(&res, "%s%s", str1, str2)) {
        fprintf(stderr, "asprintf() failed: insufficient memory!\n");
        return EXIT_FAILURE;
    }

    printf("Result: '%s'\n", res);
    free(res);
    return EXIT_SUCCESS;
}

See malloc, free and asprintf for more details.

While the above solutions do work, there is a very simple solution shall we say in "layman's" terms. Someone still learning python and string's can use the other answers but they don't really understand how they work or what each part of the code is doing without a full explanation by the poster as opposed to "this works". The following executes the swapping of every second character in a string and is easy for beginners to understand how it works.

It is simply iterating through the string (any length) by two's (starting from 0 and finding every second character) and then creating a new string (swapped_pair) by adding the current index + 1 (second character) and then the actual index (first character), e.g., index 1 is put at index 0 and then index 0 is put at index 1 and this repeats through iteration of string.

Also added code to ensure string is of even length as it only works for even length.

DrSanjay Bhakkad post above is also a good one that works for even or odd strings and is basically doing the same function as below.

string = "abcdefghijklmnopqrstuvwxyz123"

# use this prior to below iteration if string needs to be even but is possibly odd
if len(string) % 2 != 0:
    string = string[:-1]

# iteration to swap every second character in string
swapped_pair = ""
for i in range(0, len(string), 2):
    swapped_pair += (string[i + 1] + string[i])

# use this after above iteration for any even or odd length of strings
if len(swapped_pair) % 2 != 0:
    swapped_adj += swapped_pair[-1]

print(swapped_pair)

badcfehgjilknmporqtsvuxwzy21 # output if the "needs to be even" code used
badcfehgjilknmporqtsvuxwzy213 # output if the "even or odd" code used

Question is old, but it's never too late to answer.

$(document).ready(function() {
  //prevent drag and drop
  const yourInput = document.getElementById('inputid');
  yourInput.ondrop = e => e.preventDefault();

  //prevent paste
  const Input = document.getElementById('inputid');
  Input.onpaste = e => e.preventDefault();
});

Using pure Javascript:

Don't need to pass this to the SomeDeleteRowFunction():

<td><input type="button" value="Delete Row" onclick="SomeDeleteRowFunction()"></td>

The onclick function:

function SomeDeleteRowFunction() {
      // event.target will be the input element.
      var td = event.target.parentNode; 
      var tr = td.parentNode; // the row to be removed
      tr.parentNode.removeChild(tr);
}

Cloning a specific tag, might return 'detached HEAD' state.

As a workaround, try to clone the repo first, and then checkout a specific tag. For example:

repo_url=https://github.com/owner/project.git
repo_dir=$(basename $repo_url .git)
repo_tag=0.5

git clone --single-branch $repo_url # using --depth 1 can show no tags
git --work-tree=$repo_dir --git-dir=$repo_dir/.git checkout tags/$repo_tag

Note: Since Git 1.8.5, you can use -C <path>, instead of --work-tree and --git-dir.

You can use the jquery .length property

var numItems = $('.item').length;

By default, plot does show axes, unless you've modified some settings. Try the following

hold on; % make sure no new plot window is created on every plot command
axes(); % produce plot window with axes
plot(% whatever your plot command is);
plot([0 10], [0 0], 'k-'); % plot the horizontal line

Test its side-effects. This includes:

• Does it throw any exceptions? (If it should, check that it does. If it shouldn't, try some corner cases which might if you're not careful - null arguments being the most obvious thing.)
• Does it play nicely with its parameters? (If they're mutable, does it mutate them when it shouldn't and vice versa?)
• Does it have the right effect on the state of the object/type you're calling it on?

Of course, there's a limit to how much you can test. You generally can't test with every possible input, for example. Test pragmatically - enough to give you confidence that your code is designed appropriately and implemented correctly, and enough to act as supplemental documentation for what a caller might expect.

Here's an expansion on Michael Speer's answer to take it a few steps further:

An instance method decorator which takes arguments and acts on a function with arguments and a return value.

class Test(object):
    "Prints if x == y. Throws an error otherwise."
    def __init__(self, x):
        self.x = x

    def _outer_decorator(y):
        def _decorator(foo):
            def magic(self, *args, **kwargs) :
                print("start magic")
                if self.x == y:
                    return foo(self, *args, **kwargs)
                else:
                    raise ValueError("x ({}) != y ({})".format(self.x, y))
                print("end magic")
            return magic

        return _decorator

    @_outer_decorator(y=3)
    def bar(self, *args, **kwargs) :
        print("normal call")
        print("args: {}".format(args))
        print("kwargs: {}".format(kwargs))

        return 27

And then

In [2]:

    test = Test(3)
    test.bar(
        13,
        'Test',
        q=9,
        lollipop=[1,2,3]
    )
    ?
    start magic
    normal call
    args: (13, 'Test')
    kwargs: {'q': 9, 'lollipop': [1, 2, 3]}
Out[2]:
    27
In [3]:

    test = Test(4)
    test.bar(
        13,
        'Test',
        q=9,
        lollipop=[1,2,3]
    )
    ?
    start magic
    ---------------------------------------------------------------------------
    ValueError                                Traceback (most recent call last)
    <ipython-input-3-576146b3d37e> in <module>()
          4     'Test',
          5     q=9,
    ----> 6     lollipop=[1,2,3]
          7 )

    <ipython-input-1-428f22ac6c9b> in magic(self, *args, **kwargs)
         11                     return foo(self, *args, **kwargs)
         12                 else:
    ---> 13                     raise ValueError("x ({}) != y ({})".format(self.x, y))
         14                 print("end magic")
         15             return magic

    ValueError: x (4) != y (3)

Your else statement should look like this (note the ^):

{{^avatar}}
 ...
{{/avatar}}

In mustache this is called 'Inverted sections'.

SQL-Server follows the principle of "Least Privilege" -- you must (explicitly) grant permissions.

'does it mean that they wont be able to update 4 and 5 ?'

If your users in the doctor role are only in the doctor role, then yes.

However, if those users are also in other roles (namely, other roles that do have access to 4 & 5), then no.

More Information: http://msdn.microsoft.com/en-us/library/bb669084%28v=vs.110%29.aspx

You should put the script as argument for a *NIX shell you run, equivalent to the *NIXish

sh myscriptfile

See this:

SELECT name FROM sqlite_master
WHERE type='table'
ORDER BY name;

Use random.uniform(a, b):

>>> random.uniform(1.5, 1.9)
1.8733202628557872

Max length will not work with <input type="number" the best way i know is to use oninput event to limit the maxlength. Please see the below code.

<input name="somename"
    oninput="javascript: if (this.value.length > this.maxLength) this.value = this.value.slice(0, this.maxLength);"
    type = "number"
    maxlength = "6"
 />

import pandas as pd
dataset = pd.read_csv('/home/nspython/Downloads/movie_metadata1.csv')

To get a random 3-digit number:

from random import randint
randint(100, 999)  # randint is inclusive at both ends

(assuming you really meant three digits, rather than "up to three digits".)

To use an arbitrary number of digits:

from random import randint

def random_with_N_digits(n):
    range_start = 10**(n-1)
    range_end = (10**n)-1
    return randint(range_start, range_end)

print random_with_N_digits(2)
print random_with_N_digits(3)
print random_with_N_digits(4)

Output:

33
124
5127

Give them the same name, and it will work. By definition Radio buttons will only have one choice, while check boxes can have many.

<input type="radio" name="Radio1" />

I had the same problem. I'm no expert but this is the solution we used: Before you filter your data, first create a temporary column to populate your entire data set with your original sort order. Auto number the temporary "original sort order" column. Now filter your data. Copy and paste the filtered data into a new worksheet. This will move only the filtered data to the new sheet so that your row numbers will become consecutive. Now auto number your desired field. Go back to your original worksheet and delete the filtered rows. Copy and paste the newly numbered data from the secondary sheet onto the bottom of your original worksheet. Then clear your filter and sort the worksheet by the temporary "original sort order" column. This will put your newly numbered data back into its original order and you can then delete the temporary column.

Use transform: scale(...); and add matching margin: -...px to compensate free space from scaling. (you can use * {outline: 1px solid}to see element boundaries).

try this code in here...this is done using javascript onKeyUp() function...

<script>
function toCount(entrance,exit,text,characters) {  
var entranceObj=document.getElementById(entrance);  
var exitObj=document.getElementById(exit);  
var length=characters - entranceObj.value.length;  
if(length <= 0) {  
length=0;  
text='<span class="disable"> '+text+' <\/span>';  
entranceObj.value=entranceObj.value.substr(0,characters);  
}  
exitObj.innerHTML = text.replace("{CHAR}",length);  
}
</script>

textarea counter demo

The .git folder is only stored in the root directory of the repo, not all the sub-directories like subversion. You should be able to just delete that one folder, unless you are using Submodules...then they will have one too.

First, add the Material Design dependency.

implementation 'com.google.android.material:material:<version>'

To get the latest material design library version. check the official website github repository.

Current version is 1.2.0.

So, you have to add,

implementation 'com.google.android.material:material:1.2.0'

Then, you need to change the app theme to material theme by adding,

<style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
</style>

in your style.xml. Dont forget to set the same theme in your application theme in your manifest file.

Just add a cool feature which a lot of developers miss:

console.log("this is %o, event is %o, host is %s", this, e, location.host);

This is the magical %o dump clickable and deep-browsable content of a JavaScript object. %s was shown just for a record.

Also this is cool too:

console.log("%s", new Error().stack);

Which gives a Java-like stack trace to the point of the new Error() invocation (including path to file and line number!).

Both %o and new Error().stack are available in Chrome and Firefox!

Also for stack traces in Firefox use:

console.trace();

As https://developer.mozilla.org/en-US/docs/Web/API/console says.

Happy hacking!

UPDATE: Some libraries are written by bad people which redefine the console object for their own purposes. To restore the original browser console after loading library, use:

delete console.log;
delete console.warn;
....

See Stack Overflow question Restoring console.log().

A simple loop should be working:

for file in /var/*
do
    #whatever you need with "$file"
done

See bash filename expansion

Step Into The next expression on the currently-selected line to be executed is invoked, and execution suspends at the next executable line in the method that is invoked.

Step Over The currently-selected line is executed and suspends on the next executable line.

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();
        }
    });

exec

executes a command and never returns. It's like a return statement in a function.

If the command is not found exec returns false. It never returns true, because if the command is found it never returns at all. There is also no point in returning STDOUT, STDERR or exit status of the command. You can find documentation about it in perlfunc, because it is a function.

system

executes a command and your Perl script is continued after the command has finished.

The return value is the exit status of the command. You can find documentation about it in perlfunc.

backticks

like system executes a command and your perl script is continued after the command has finished.

In contrary to system the return value is STDOUT of the command. qx// is equivalent to backticks. You can find documentation about it in perlop, because unlike system and execit is an operator.

Other ways

What is missing from the above is a way to execute a command asynchronously. That means your perl script and your command run simultaneously. This can be accomplished with open. It allows you to read STDOUT/STDERR and write to STDIN of your command. It is platform dependent though.

There are also several modules which can ease this tasks. There is IPC::Open2 and IPC::Open3 and IPC::Run, as well as Win32::Process::Create if you are on windows.

This is a more efficient version of the solution from @Kramb. The existence check is redundant as the update where clause already handles this. Instead you just grab the rowcount and compare to batchsize.

Also note @Kramb solution didn't filter out already updated rows from the next iteration hence it would be an infinite loop.

Also uses the modern batch size syntax instead of using rowcount.

DECLARE @batchSize INT, @rowsUpdated INT
SET @batchSize = 1000;
SET @rowsUpdated = @batchSize; -- Initialise for the while loop entry

WHILE (@batchSize = @rowsUpdated)
BEGIN
    UPDATE TOP (@batchSize) TableName
    SET Value = 'abc1'
    WHERE Parameter1 = 'abc' AND Parameter2 = 123 and Value <> 'abc1';

    SET @rowsUpdated = @@ROWCOUNT;
END

Remove "SSLv2ClientHello" from the enabled protocols on the client SSLSocket or HttpsURLConnection.

As far as I am aware, simply opening the file in write mode without append mode will erase the contents of the file.

ofstream file("filename.txt"); // Without append
ofstream file("filename.txt", ios::app); // with append

The first one will place the position bit at the beginning erasing all contents while the second version will place the position bit at the end-of-file bit and write from there.

I have create a eclipse plugin to create activity in one click .

Just download the Plugin from https://docs.google.com/file/d/0B63U_IjxUP_GMkdYZzc1Y3lEM1U/edit?usp=sharing

Paste the plugin in the dropins folder in Eclipse and restart eclipse

For more details please see my blog
http://shareatramachandran.blogspot.in/2013/06/android-activity-plugin-for-eclispe.html

Need your comment on this if it was helpful...

https://nodejs.org/en/

Simply download node from the official website, this worked for me! :)

arrOfObj.map(o => { 
  o.isActive = true; 
  return o; 
});

Asking for the difference /between/ two commits without including the commits in-between makes little sense. Commits are just snapshots of the contents of the repository; asking for the difference between two necessarily includes them. So the question then is, what are you really looking for?

As William suggested, cherry-picking can give you the delta of a single commit rebased on top of another. That is:

$ git checkout 012345
$ git cherry-pick -n abcdef
$ git diff --cached

This takes commit 'abcdef', compares it to its immediate ancestor, then applies that difference on top of '012345'. This new difference is then shown - the only change is the context comes from '012345' rather than 'abcdef's immediate ancestor. Of course, you may get conflicts and etc, so it's not a very useful process in most cases.

If you're just interested in abcdef itself, you can do:

$ git log -u -1 abcdef

This compares abcdef to its immediate ancestor, alone, and is usually what you want.

And of course

$ git diff 012345..abcdef

gives you all differences between those two commits.

It would help to get a better idea of what you're trying to achieve - as I mentioned, asking for the difference between two commits without what's in between doesn't actually make sense.

You should use the excellent OpenCSV for reading and writing CSV files. To adapt your example to use the library it would look like this:

public class ParseCSV {
  public static void main(String[] args) {
    try {
      //csv file containing data
      String strFile = "C:/Users/rsaluja/CMS_Evaluation/Drupal_12_08_27.csv";
      CSVReader reader = new CSVReader(new FileReader(strFile));
      String [] nextLine;
      int lineNumber = 0;
      while ((nextLine = reader.readNext()) != null) {
        lineNumber++;
        System.out.println("Line # " + lineNumber);

        // nextLine[] is an array of values from the line
        System.out.println(nextLine[4] + "etc...");
      }
    }
  }
}

Update (as 2019):

cd ~/.vim
git clone git://github.com/tpope/vim-haml.git pack/bundle/start/haml

Explanation (from :h pack ad :h packages):

1. All the directories found are added to runtimepath. They must be in ~/.vim/pack/whatever/start [you can only change whatever].
2. the plugins found in the plugins dir in runtimepath are sourced.

So this load the plugin on start (hence the name start).

You can also get optional plugin (loaded with :packadd) if you put them in ~/.vim/pack/bundle/opt

Here's a really simple way in python 3+:

f = open('filename.txt', 'w')
print('something', file = f)

^ found that from this answer: https://stackoverflow.com/a/4110906/6794367

var currentDate  = new Date(),
    currentDay   = currentDate.getDate() < 10 
                 ? '0' + currentDate.getDate() 
                 : currentDate.getDate(),
    currentMonth = currentDate.getMonth() < 9 
                 ? '0' + (currentDate.getMonth() + 1) 
                 : (currentDate.getMonth() + 1);

document.getElementById("date").innerHTML = currentDay + '/' + currentMonth + '/' +  currentDate.getFullYear();

You can read more about Date object

Simply, Run the cmd in Administrator mode.

You can do it without jQuery!

Example:

document.querySelector('button').setAttribute('disabled', '');

<button>My disabled button!</button>

To set the value of a Boolean attribute, such as disabled, you can specify any value. An empty string or the name of the attribute are recommended values. All that matters is that if the attribute is present at all, regardless of its actual value, its value is considered to be true. The absence of the attribute means its value is false. By setting the value of the disabled attribute to the empty string (""), we are setting disabled to true, which results in the button being disabled.

From MDN Element.setAttribute()

Here is an easier way that worked for me:

const express = require('express');
var app = express();
var fs = require('fs');

app.post('/upload', async function(req, res) {

  var file = JSON.parse(JSON.stringify(req.files))

  var file_name = file.file.name

  //if you want just the buffer format you can use it
  var buffer = new Buffer.from(file.file.data.data)

  //uncomment await if you want to do stuff after the file is created

  /*await*/
  fs.writeFile(file_name, buffer, async(err) => {

    console.log("Successfully Written to File.");


    // do what you want with the file it is in (__dirname + "/" + file_name)

    console.log("end  :  " + new Date())

    console.log(result_stt + "")

    fs.unlink(__dirname + "/" + file_name, () => {})
    res.send(result_stt)
  });


});

This also works

SELECT *
FROM tableB
WHERE ID NOT IN (
  SELECT ID FROM tableA
);

For those of you who want to execute a side-effect only if an optional is absent

i.e. an equivalent of ifAbsent() or ifNotPresent() here is a slight modification to the great answers already provided.

myOptional.ifPresentOrElse(x -> {}, () -> {
  // logic goes here
})

• XQuery Against the xml Data Type
• General XQuery Use Cases
• XQueries Involving Hierarchy

• XQueries Involving Order

• Anything in Michael Rys blog

Update

My recomendation would be to shred the XML into relations and do searches and joins on the resulted relation, in a set oriented fashion, rather than the procedural fashion of searching specific nodes in the XML. Here is a simple XML query that shreds out the nodes and attributes of interest:

select x.value(N'../../../../@stepId', N'int') as StepID
  , x.value(N'../../@id', N'int') as ComponentID
  , x.value(N'@nom',N'nvarchar(100)') as Nom
  , x.value(N'@valeur', N'nvarchar(100)') as Valeur
from @x.nodes(N'/xml/box/components/component/variables/variable') t(x)

However, if you must use an XPath that retrieves exactly the value of interest:

select x.value(N'@valeur', N'nvarchar(100)') as Valeur
from @x.nodes(N'/xml/box[@stepId=sql:variable("@stepID")]/
    components/component[@id = sql:variable("@componentID")]/
       variables/variable[@nom="Enabled"]') t(x)

If the stepID and component ID are columns, not variables, the you should use sql:column() instead of sql:variable in the XPath filters. See Binding Relational Data Inside XML Data.

And finaly if all you need is to check for existance you can use the exist() XML method:

select @x.exist(
  N'/xml/box[@stepId=sql:variable("@stepID")]/
    components/component[@id = sql:variable("@componentID")]/
      variables/variable[@nom="Enabled" and @valeur="Yes"]') 

The SIMPLEST solution to this is within your html form code add:

<input type="number"

If it's a php form then add:

$data = array(
        'type' => 'number',

Both of these

1. stops the user from typing a comma
2. stops the user from pasting a comma (it pastes the number but strips the comma)

If you've already pushed things to a remote server (and you have other developers working off the same remote branch) the important thing to bear in mind is that you don't want to rewrite history

Don't use git reset --hard

You need to revert changes, otherwise any checkout that has the removed commits in its history will add them back to the remote repository the next time they push; and any other checkout will pull them in on the next pull thereafter.

If you have not pushed changes to a remote, you can use

git reset --hard <hash>

If you have pushed changes, but are sure nobody has pulled them you can use

git reset --hard
git push -f

If you have pushed changes, and someone has pulled them into their checkout you can still do it but the other team-member/checkout would need to collaborate:

(you) git reset --hard <hash>
(you) git push -f

(them) git fetch
(them) git reset --hard origin/branch

But generally speaking that's turning into a mess. So, reverting:

The commits to remove are the lastest

This is possibly the most common case, you've done something - you've pushed them out and then realized they shouldn't exist.

First you need to identify the commit to which you want to go back to, you can do that with:

git log

just look for the commit before your changes, and note the commit hash. you can limit the log to the most resent commits using the -n flag: git log -n 5

Then reset your branch to the state you want your other developers to see:

git revert  <hash of first borked commit>..HEAD

The final step is to create your own local branch reapplying your reverted changes:

git branch my-new-branch
git checkout my-new-branch
git revert <hash of each revert commit> .

Continue working in my-new-branch until you're done, then merge it in to your main development branch.

The commits to remove are intermingled with other commits

If the commits you want to revert are not all together, it's probably easiest to revert them individually. Again using git log find the commits you want to remove and then:

git revert <hash>
git revert <another hash>
..

Then, again, create your branch for continuing your work:

git branch my-new-branch
git checkout my-new-branch
git revert <hash of each revert commit> .

Then again, hack away and merge in when you're done.

You should end up with a commit history which looks like this on my-new-branch

2012-05-28 10:11 AD7six             o [my-new-branch] Revert "Revert "another mistake""
2012-05-28 10:11 AD7six             o Revert "Revert "committing a mistake""
2012-05-28 10:09 AD7six             o [master] Revert "committing a mistake"
2012-05-28 10:09 AD7six             o Revert "another mistake"
2012-05-28 10:08 AD7six             o another mistake
2012-05-28 10:08 AD7six             o committing a mistake
2012-05-28 10:05 Bob                I XYZ nearly works

Better way®

Especially that now that you're aware of the dangers of several developers working in the same branch, consider using feature branches always for your work. All that means is working in a branch until something is finished, and only then merge it to your main branch. Also consider using tools such as git-flow to automate branch creation in a consistent way.

A stored procedure is a group of SQL statements that has been created and stored in the database. A stored procedure will accept input parameters so that a single procedure can be used over the network by several clients using different input data. A stored procedures will reduce network traffic and increase the performance. If we modify a stored procedure all the clients will get the updated stored procedure.

Sample of creating a stored procedure

CREATE PROCEDURE test_display
AS
    SELECT FirstName, LastName
    FROM tb_test;

EXEC test_display;

Advantages of using stored procedures

• A stored procedure allows modular programming.

  You can create the procedure once, store it in the database, and call it any number of times in your program.

• A stored procedure allows faster execution.

  If the operation requires a large amount of SQL code that is performed repetitively, stored procedures can be faster. They are parsed and optimized when they are first executed, and a compiled version of the stored procedure remains in a memory cache for later use. This means the stored procedure does not need to be reparsed and reoptimized with each use, resulting in much faster execution times.

• A stored procedure can reduce network traffic.

  An operation requiring hundreds of lines of Transact-SQL code can be performed through a single statement that executes the code in a procedure, rather than by sending hundreds of lines of code over the network.

• Stored procedures provide better security to your data

  Users can be granted permission to execute a stored procedure even if they do not have permission to execute the procedure's statements directly.

  In SQL Server we have different types of stored procedures:

  • System stored procedures
  • User-defined stored procedures
  • Extended stored Procedures

• System-stored procedures are stored in the master database and these start with a sp_ prefix. These procedures can be used to perform a variety of tasks to support SQL Server functions for external application calls in the system tables

  Example: sp_helptext [StoredProcedure_Name]

• User-defined stored procedures are usually stored in a user database and are typically designed to complete the tasks in the user database. While coding these procedures don’t use the sp_ prefix because if we use the sp_ prefix first, it will check the master database, and then it comes to user defined database.

• Extended stored procedures are the procedures that call functions from DLL files. Nowadays, extended stored procedures are deprecated for the reason it would be better to avoid using extended stored procedures.

char originalString[] = "THESTRINGHASNOSPACES";

    char aux[5];
    int j=0;
    for(int i=0;i<strlen(originalString);i++){
        aux[j] = originalString[i];
        if(j==3){
            aux[j+1]='\0'; 
            printf("%s\n",aux);
            j=0;
        }else{
            j++;
        }
    }

It is not possible to save file locally without involving the local client (browser machine) as I could be a great threat to client machine. You can use link to download that file. If you want to store something like Json data on local machine you can use LocalStorage provided by the browsers, Web Storage

While using the disk utility graphically, it shows disk space used by all filesystem and it uses commands in the terminal such as df -H. In other words, it uses powers of 1000, not 1024. (Note: there is difference between -h and -H.)

While also finding the unallocated space in a hard disk using command line # fdisk /dev/sda will display the total space and total cylinder value.

Now check the last cylinder value and subtract it from the total cylinder value. Hence the final value * 1000 gives you the unallocated disk space.

Note: the cylinder value shows up in df -H as a power of 1000 or it might also show up using df -h, a power of 1024.

First, three useful things about const (other than the scope improvements it shares with let):

• It documents for people reading the code later that the value must not change.
• It prevents you (or anyone coming after you) from changing the value unless they go back and change the declaration intentionally.
• It might save the JavaScript engine some analysis in terms of optimization. E.g., you've declared that the value cannot change, so the engine doesn't have to do work to figure out whether the value changes so it can decide whether to optimize based on the value not changing.

Your questions:

When is it appropriate to use const in place of var?

You can do it any time you're declaring a variable whose value never changes. Whether you consider that appropriate is entirely down to your preference / your team's preference.

Should it be used every time a variable which is not going to be re-assigned is declared?

That's up to you / your team.

Does it actually make any difference if var is used in place ofconst` or vice-versa?

Yes:

• var and const have different scope rules. (You might have wanted to compare with let rather than var.) Specifically: const and let are block-scoped and, when used at global scope, don't create properties on the global object (even though they do create globals). var has either global scope (when used at global scope) or function scope (even if used in a block), and when used at global scope, creates a property on the global object.
• See my "three useful things" above, they all apply to this question.

If it's inside a closure, i'm pretty sure you can't.

Otherwise you just do functionName(); and hit return.

I'd suggest marking the Hibernate DAO class with @Primary, i.e. (assuming you used @Repository on HibernateDeviceDao):

@Primary
@Repository
public class HibernateDeviceDao implements DeviceDao

This way it will be selected as the default autowire candididate, with no need to autowire-candidate on the other bean.

Also, rather than using @Autowired @Qualifier, I find it more elegant to use @Resource for picking specific beans, i.e.

@Resource(name="jdbcDeviceDao")
DeviceDao deviceDao;

declaring a function extern means that its definition will be resolved at the time of linking, not during compilation.

Unlike regular functions, which are not declared extern, it can be defined in any of the source files(but not in multiple source files otherwise you'll get linker error saying that you've given multiple definitions of the function) including the one in which it is declared extern.So, in ur case the linker resolves the function definition in the same file.

I don't think doing this would be much useful however doing such kind of experiments gives better insight about how the language's compiler and linker works.

We can delete a key from a Python dictionary by the some of the following approaches.

Using the del keyword; it's almost the same approach like you did though -

 myDict = {'one': 100, 'two': 200, 'three': 300 }
 print(myDict)  # {'one': 100, 'two': 200, 'three': 300}
 if myDict.get('one') : del myDict['one']
 print(myDict)  # {'two': 200, 'three': 300}

Or

We can do like the following:

But one should keep in mind that, in this process actually it won't delete any key from the dictionary rather than making a specific key excluded from that dictionary. In addition, I observed that it returned a dictionary which was not ordered the same as myDict.

myDict = {'one': 100, 'two': 200, 'three': 300, 'four': 400, 'five': 500}
{key:value for key, value in myDict.items() if key != 'one'}

If we run it in the shell, it'll execute something like {'five': 500, 'four': 400, 'three': 300, 'two': 200} - notice that it's not the same ordered as myDict. Again if we try to print myDict, then we can see all keys including which we excluded from the dictionary by this approach. However, we can make a new dictionary by assigning the following statement into a variable:

var = {key:value for key, value in myDict.items() if key != 'one'}

Now if we try to print it, then it'll follow the parent order:

print(var) # {'two': 200, 'three': 300, 'four': 400, 'five': 500}

Or

Using the pop() method.

myDict = {'one': 100, 'two': 200, 'three': 300}
print(myDict)

if myDict.get('one') : myDict.pop('one')
print(myDict)  # {'two': 200, 'three': 300}

The difference between del and pop is that, using pop() method, we can actually store the key's value if needed, like the following:

myDict = {'one': 100, 'two': 200, 'three': 300}
if myDict.get('one') : var = myDict.pop('one')
print(myDict) # {'two': 200, 'three': 300}
print(var)    # 100

Fork this gist for future reference, if you find this useful.

Reply to MVC4 DataType.Date EditorFor won't display date value in Chrome, fine in IE

In the Model you need to have following type of declaration:

[DataType(DataType.Date)]
public DateTime? DateXYZ { get; set; }

OR

[DataType(DataType.Date)]
public Nullable<System.DateTime> DateXYZ { get; set; }

You don't need to use following attribute:

[DisplayFormat(DataFormatString = "{0:yyyy-MM-dd}", ApplyFormatInEditMode = true)]

At the Date.cshtml use this template:

@model Nullable<DateTime>
@using System.Globalization;

@{
    DateTime dt = DateTime.Now;
    if (Model != null)
    {
        dt = (System.DateTime)Model;

    }

    if (Request.Browser.Type.ToUpper().Contains("IE") || Request.Browser.Type.Contains("InternetExplorer"))
    {
        @Html.TextBox("", String.Format("{0:d}", dt.ToShortDateString()), new { @class = "datefield", type = "date" })
    }
    else
    {
        //Tested in chrome
        DateTimeFormatInfo dtfi = CultureInfo.CreateSpecificCulture("en-US").DateTimeFormat;
        dtfi.DateSeparator = "-";
        dtfi.ShortDatePattern = @"yyyy/MM/dd"; 
        @Html.TextBox("", String.Format("{0:d}", dt.ToString("d", dtfi)), new { @class = "datefield", type = "date" })
    } 
}

Have fun! Regards, Blerton

CSS Flexbox is well supported these days. Go here for a good tutorial on flexbox.

This works fine in all newer browsers:

#container {_x000D_
  display:         flex;_x000D_
  flex-wrap:       wrap;_x000D_
  justify-content: center;_x000D_
}_x000D_
_x000D_
.block {_x000D_
  width:              150px;_x000D_
  height:             150px;_x000D_
  background-color:   #cccccc;_x000D_
  margin:             10px;        _x000D_
}

<div id="container">_x000D_
  <div class="block">1</div>    _x000D_
  <div class="block">2</div>    _x000D_
  <div class="block">3</div>    _x000D_
  <div class="block">4</div>    _x000D_
  <div class="block">5</div>        _x000D_
</div>

Some may ask why not use display: inline-block? For simple things it is fine, but if you got complex code within the blocks, the layout may not be correctly centered anymore. Flexbox is more stable than float left.

Never ever should you use money. It is not precise, and it is pure garbage; always use decimal/numeric.

Run this to see what I mean:

DECLARE
    @mon1 MONEY,
    @mon2 MONEY,
    @mon3 MONEY,
    @mon4 MONEY,
    @num1 DECIMAL(19,4),
    @num2 DECIMAL(19,4),
    @num3 DECIMAL(19,4),
    @num4 DECIMAL(19,4)

    SELECT
    @mon1 = 100, @mon2 = 339, @mon3 = 10000,
    @num1 = 100, @num2 = 339, @num3 = 10000

    SET @mon4 = @mon1/@mon2*@mon3
    SET @num4 = @num1/@num2*@num3

    SELECT @mon4 AS moneyresult,
    @num4 AS numericresult

Output: 2949.0000 2949.8525

To some of the people who said that you don't divide money by money:

Here is one of my queries to calculate correlations, and changing that to money gives wrong results.

select t1.index_id,t2.index_id,(avg(t1.monret*t2.monret)
    -(avg(t1.monret) * avg(t2.monret)))
            /((sqrt(avg(square(t1.monret)) - square(avg(t1.monret))))
            *(sqrt(avg(square(t2.monret)) - square(avg(t2.monret))))),
current_timestamp,@MaxDate
            from Table1 t1  join Table1 t2  on t1.Date = traDate
            group by t1.index_id,t2.index_id

You can't increase the array's length if it is not declared in heap memory (see below code which first array input is asked by user and then it asks how much you want to increase array and also copy previous array elements):

#include<stdio.h>
#include<stdlib.h>

int * increasesize(int * p,int * q,int x)
{
    int i;
    for(i=0;i<x;i++)
    {
         q[i]=p[i];
    }
    free(p);
    p=q;
    return p;
}
void display(int * q,int x)
{
    int i;
    for(i=0;i<x;i++)
    {
        printf("%d \n",q[i]);
        
    }
}

int main()
{
    int x,i;
    printf("enter no of element to create array");
    scanf("%d",&x);
    int * p=(int *)malloc(x*sizeof(int));
    printf("\n enter number in the array\n");
    for(i=0;i<x;i++)
    {
        scanf("%d",&p[i]);
    }
    int y;
    printf("\nenter the new size to create new size of array");
    scanf("%d",&y);
    int * q=(int *)malloc(y*sizeof(int));
    display(increasesize(p,q,x),y);
    free(q);
}

There is no directive for ng-else

You can use ng-if to achieve if(){..} else{..} in angularJs.

For your current situation,

<div ng-if="data.id == 5">
<!-- If block -->
</div>
<div ng-if="data.id != 5">
<!-- Your Else Block -->
</div>

The other answers on here are great and answer your question, but this is the top google result for "bash get list of files in directory", (which I was looking for to save a list of files) so I thought I would post an answer to that problem:

ls $search_path > filename.txt

If you want only a certain type (e.g. any .txt files):

ls $search_path | grep *.txt > filename.txt

Note that $search_path is optional; ls > filename.txt will do the current directory.

Add this dependecy in pom.xml file. Hope this help.
In <systemPath> property you have to write your jdk lib path..

    <dependency>  
          <groupId>com.sun</groupId> 
           <artifactId>tools</artifactId>
        <version>1.4.2</version>
        <scope>system</scope>
        <systemPath>C:/Program Files/Java/jdk1.6.0_30/lib/tools.jar</systemPath>
        </dependency> 

I'm assuming that your container element is probably position:relative;. This is will mean that the dialog box will be positioned accordingly to the container, not the page.

Can you change the markup to this?

<html>
<body>
    <!-- Need to place this div at the top right of the page-->
        <div class="ajax-message">
            <div class="row">
                <div class="span9">
                    <div class="alert">
                        <a class="close icon icon-remove"></a>
                        <div class="message-content">
                            Some message goes here
                        </div>
                    </div>
                </div>
            </div>
        </div>
    <div class="container">
        <!-- Page contents starts here. These are dynamic-->
        <div class="row">
            <div class="span12 inner-col">
                <h2>Documents</h2>
            </div>
        </div>
    </div>
</body>
</html>

With the dialog box outside the main container then you can use absolute positioning relative to the page.

In addition to Will Dean's version, the following are common for whole buffer initialization:

char s[10] = {'\0'};

or

char s[10];
memset(s, '\0', sizeof(s));

or

char s[10];
strncpy(s, "", sizeof(s));

Prior Swift 3.0 :

String(data: yourData, encoding: NSUTF8StringEncoding)

For Swift 4.0:

String(data: yourData, encoding: .utf8)

const allEqual = arr => arr.every( v => v === arr[0] )
allEqual( [1,1,1,1] )  // true

Or one-liner:

[1,1,1,1].every( (val, i, arr) => val === arr[0] )   // true

Array.prototype.every (from MDN) : The every() method tests whether all elements in the array pass the test implemented by the provided function.

You can change SVG coloring with css if you use some tricks. I wrote a small script for that.

• go through a list of elements which do have an svg image
• load the svg file as xml
• fetch only svg part
• change color of path
• replace src with the modified svg as inline image

$('img.svg-changeable').each(function () {
  var $e = $(this);
  var imgURL = $e.prop('src');

  $.get(imgURL, function (data) {
    // Get the SVG tag, ignore the rest
    var $svg = $(data).find('svg');

    // change the color
    $svg.find('path').attr('fill', '#000');

    $e.prop('src', "data:image/svg+xml;base64," + window.btoa($svg.prop('outerHTML')));
  });

});

the code above might not be working correctly, I've implemented this for elements with an svg background image which works nearly similar to this. But anyway you have to modify this script to fit your case. hope it helped.

If you don't want to or can't use Android Studio, you can use the create-android-keystore NPM tool:

$ create-android-keystore quick

Which results in a newly generated keystore in the current directory.

More info: https://www.npmjs.com/package/create-android-keystore

try this

    if ($host !~* ^www\.){
        rewrite ^(.*)$ https://www.yoursite.com$1;
    }

Other way: Nginx no-www to www

server {
  listen       80;
  server_name  yoursite.com;
  root /path/;
  index index.php;
  return       301 https://www.yoursite.com$request_uri;
}

and www to no-www

server {
  listen       80;
  server_name  www.yoursite.com;
  root /path/;
  index index.php;
  return       301 https://yoursite.com$request_uri;
}

You can use DbContext.Database.CommandTimeout = 180; // seconds

It's pretty simple and no cast required.

In concept of immutable data, maybe this is a better way:

class TempClass {
    val list: List<Int> by lazy {
        listOf<Int>()
    }
    fun doSomething() {
        list += 10
        list -= 10
    }
}

Question: Is there a simple way to do this in the current release of Python?

Answer: There is no simple (direct) way to do this in the current release of Python.

Reference: Please refer to docs.python.org/2/library/datetime.html, section 8.1.2. timedelta Objects. As we may understand from that, we cannot increment month directly since it is not a uniform time unit.

Plus: If you want first day -> first day and last day -> last day mapping you should handle that separately for different months.

Use defaultValue and onChange like this

const [myValue, setMyValue] = useState('');

<select onChange={(e) => setMyValue(e.target.value)} defaultValue={props.myprop}>
                    
       <option>Option 1</option>
       <option>Option 2</option>
       <option>Option 3</option>

</select>

If you think less code means more efficient, so using construct function is better. You also can use code like:

Person p=new Person(){
Name='abc',
Age=15
}

The best method for setting a socket as non-blocking in C is to use ioctl. An example where an accepted socket is set to non-blocking is following:

long on = 1L;
unsigned int len;
struct sockaddr_storage remoteAddress;
len = sizeof(remoteAddress);
int socket = accept(listenSocket, (struct sockaddr *)&remoteAddress, &len)
if (ioctl(socket, (int)FIONBIO, (char *)&on))
{
    printf("ioctl FIONBIO call failed\n");
}

bsondump collection.bson > collection.json

and then

mongoimport -d <dbname> -c <collection> < collection.json

java [ options ] -jar file.jar [ argument ... ]

if you need to pass the log4j properties file use the below option

-Dlog4j.configurationFile=directory/file.xml


java -Dlog4j.configurationFile=directory/file.xml -jar <JAR FILE> [arguments ...]

Kushagra Gour's solution does work (at least in Chrome and IE) and solves the original problem without having to use display: table; and display: table-cell;. See plunker: http://plnkr.co/edit/ULEgY1FDCsk8yiRTfOWU

Setting min-height: 100%; height: 1px; on the outer div causes its actual height to be at least 100%, as required. It also allows the inner div to correctly inherit the height.

'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

The problem was that I was going a step too far in calling the parse method of XMLReader. The parse method accepts an InputSource, so there was no reason to even use a FileReader. Changing the last line of the code above to

xr.parse( new InputSource( filename ));

works just fine.

Simply try this, some of the answers here are not handling unicode data and data that has comma for example date.

function downloadUnicodeCSV(filename, datasource) {
    var content = '', newLine = '\r\n';
    for (var _i = 0, datasource_1 = datasource; _i < datasource_1.length; _i++) {
        var line = datasource_1[_i];
        var i = 0;
        for (var _a = 0, line_1 = line; _a < line_1.length; _a++) {
            var item = line_1[_a];
            var it = item.replace(/"/g, '""');
            if (it.search(/("|,|\n)/g) >= 0) {
                it = '"' + it + '"';
            }
            content += (i > 0 ? ',' : '') + it;
            ++i;
        }
        content += newLine;
    }
    var link = document.createElement('a');
    link.setAttribute('href', 'data:text/csv;charset=utf-8,%EF%BB%BF' + encodeURIComponent(content));
    link.setAttribute('download', filename);
    link.style.visibility = 'hidden';
    document.body.appendChild(link);
    link.click();
    document.body.removeChild(link);
};

Just to add an additional function should you need it. You can include a variable in the named location, for example a date identifier

date <- yyyymmdd
save(city, file=paste0("c:\\myuser\\somelocation\\",date,"_RData.Data")

This was you can always keep a check of when it was run

How to read:

This article is rather long. If you want to know about both aggregates and PODs (Plain Old Data) take time and read it. If you are interested just in aggregates, read only the first part. If you are interested only in PODs then you must first read the definition, implications, and examples of aggregates and then you may jump to PODs but I would still recommend reading the first part in its entirety. The notion of aggregates is essential for defining PODs. If you find any errors (even minor, including grammar, stylistics, formatting, syntax, etc.) please leave a comment, I'll edit.

This answer applies to C++03. For other C++ standards see:

• C++11 changes
• C++14 changes
• C++17 changes

What are aggregates and why they are special

Formal definition from the C++ standard (C++03 8.5.1 §1):

An aggregate is an array or a class (clause 9) with no user-declared constructors (12.1), no private or protected non-static data members (clause 11), no base classes (clause 10), and no virtual functions (10.3).

So, OK, let's parse this definition. First of all, any array is an aggregate. A class can also be an aggregate if… wait! nothing is said about structs or unions, can't they be aggregates? Yes, they can. In C++, the term class refers to all classes, structs, and unions. So, a class (or struct, or union) is an aggregate if and only if it satisfies the criteria from the above definitions. What do these criteria imply?

• This does not mean an aggregate class cannot have constructors, in fact it can have a default constructor and/or a copy constructor as long as they are implicitly declared by the compiler, and not explicitly by the user

• No private or protected non-static data members. You can have as many private and protected member functions (but not constructors) as well as as many private or protected static data members and member functions as you like and not violate the rules for aggregate classes

• An aggregate class can have a user-declared/user-defined copy-assignment operator and/or destructor

• An array is an aggregate even if it is an array of non-aggregate class type.

Now let's look at some examples:

class NotAggregate1
{
  virtual void f() {} //remember? no virtual functions
};

class NotAggregate2
{
  int x; //x is private by default and non-static 
};

class NotAggregate3
{
public:
  NotAggregate3(int) {} //oops, user-defined constructor
};

class Aggregate1
{
public:
  NotAggregate1 member1;   //ok, public member
  Aggregate1& operator=(Aggregate1 const & rhs) {/* */} //ok, copy-assignment  
private:
  void f() {} // ok, just a private function
};

You get the idea. Now let's see how aggregates are special. They, unlike non-aggregate classes, can be initialized with curly braces {}. This initialization syntax is commonly known for arrays, and we just learnt that these are aggregates. So, let's start with them.

Type array_name[n] = {a1, a2, …, am};

if(m == n)
the i^th element of the array is initialized with a_i
else if(m < n)
the first m elements of the array are initialized with a₁, a₂, …, a_m and the other n - m elements are, if possible, value-initialized (see below for the explanation of the term)
else if(m > n)
the compiler will issue an error
else (this is the case when n isn't specified at all like int a[] = {1, 2, 3};)
the size of the array (n) is assumed to be equal to m, so int a[] = {1, 2, 3}; is equivalent to int a[3] = {1, 2, 3};

When an object of scalar type (bool, int, char, double, pointers, etc.) is value-initialized it means it is initialized with 0 for that type (false for bool, 0.0 for double, etc.). When an object of class type with a user-declared default constructor is value-initialized its default constructor is called. If the default constructor is implicitly defined then all nonstatic members are recursively value-initialized. This definition is imprecise and a bit incorrect but it should give you the basic idea. A reference cannot be value-initialized. Value-initialization for a non-aggregate class can fail if, for example, the class has no appropriate default constructor.

Examples of array initialization:

class A
{
public:
  A(int) {} //no default constructor
};
class B
{
public:
  B() {} //default constructor available
};
int main()
{
  A a1[3] = {A(2), A(1), A(14)}; //OK n == m
  A a2[3] = {A(2)}; //ERROR A has no default constructor. Unable to value-initialize a2[1] and a2[2]
  B b1[3] = {B()}; //OK b1[1] and b1[2] are value initialized, in this case with the default-ctor
  int Array1[1000] = {0}; //All elements are initialized with 0;
  int Array2[1000] = {1}; //Attention: only the first element is 1, the rest are 0;
  bool Array3[1000] = {}; //the braces can be empty too. All elements initialized with false
  int Array4[1000]; //no initializer. This is different from an empty {} initializer in that
  //the elements in this case are not value-initialized, but have indeterminate values 
  //(unless, of course, Array4 is a global array)
  int array[2] = {1, 2, 3, 4}; //ERROR, too many initializers
}

Now let's see how aggregate classes can be initialized with braces. Pretty much the same way. Instead of the array elements we will initialize the non-static data members in the order of their appearance in the class definition (they are all public by definition). If there are fewer initializers than members, the rest are value-initialized. If it is impossible to value-initialize one of the members which were not explicitly initialized, we get a compile-time error. If there are more initializers than necessary, we get a compile-time error as well.

struct X
{
  int i1;
  int i2;
};
struct Y
{
  char c;
  X x;
  int i[2];
  float f; 
protected:
  static double d;
private:
  void g(){}      
}; 

Y y = {'a', {10, 20}, {20, 30}};

In the above example y.c is initialized with 'a', y.x.i1 with 10, y.x.i2 with 20, y.i[0] with 20, y.i[1] with 30 and y.f is value-initialized, that is, initialized with 0.0. The protected static member d is not initialized at all, because it is static.

Aggregate unions are different in that you may initialize only their first member with braces. I think that if you are advanced enough in C++ to even consider using unions (their use may be very dangerous and must be thought of carefully), you could look up the rules for unions in the standard yourself :).

Now that we know what's special about aggregates, let's try to understand the restrictions on classes; that is, why they are there. We should understand that memberwise initialization with braces implies that the class is nothing more than the sum of its members. If a user-defined constructor is present, it means that the user needs to do some extra work to initialize the members therefore brace initialization would be incorrect. If virtual functions are present, it means that the objects of this class have (on most implementations) a pointer to the so-called vtable of the class, which is set in the constructor, so brace-initialization would be insufficient. You could figure out the rest of the restrictions in a similar manner as an exercise :).

So enough about the aggregates. Now we can define a stricter set of types, to wit, PODs

What are PODs and why they are special

Formal definition from the C++ standard (C++03 9 §4):

A POD-struct is an aggregate class that has no non-static data members of type non-POD-struct, non-POD-union (or array of such types) or reference, and has no user-defined copy assignment operator and no user-defined destructor. Similarly, a POD-union is an aggregate union that has no non-static data members of type non-POD-struct, non-POD-union (or array of such types) or reference, and has no user-defined copy assignment operator and no user-defined destructor. A POD class is a class that is either a POD-struct or a POD-union.

Wow, this one's tougher to parse, isn't it? :) Let's leave unions out (on the same grounds as above) and rephrase in a bit clearer way:

An aggregate class is called a POD if it has no user-defined copy-assignment operator and destructor and none of its nonstatic members is a non-POD class, array of non-POD, or a reference.

What does this definition imply? (Did I mention POD stands for Plain Old Data?)

• All POD classes are aggregates, or, to put it the other way around, if a class is not an aggregate then it is sure not a POD
• Classes, just like structs, can be PODs even though the standard term is POD-struct for both cases
• Just like in the case of aggregates, it doesn't matter what static members the class has

Examples:

struct POD
{
  int x;
  char y;
  void f() {} //no harm if there's a function
  static std::vector<char> v; //static members do not matter
};

struct AggregateButNotPOD1
{
  int x;
  ~AggregateButNotPOD1() {} //user-defined destructor
};

struct AggregateButNotPOD2
{
  AggregateButNotPOD1 arrOfNonPod[3]; //array of non-POD class
};

POD-classes, POD-unions, scalar types, and arrays of such types are collectively called POD-types.
PODs are special in many ways. I'll provide just some examples.

• POD-classes are the closest to C structs. Unlike them, PODs can have member functions and arbitrary static members, but neither of these two change the memory layout of the object. So if you want to write a more or less portable dynamic library that can be used from C and even .NET, you should try to make all your exported functions take and return only parameters of POD-types.

• The lifetime of objects of non-POD class type begins when the constructor has finished and ends when the destructor has finished. For POD classes, the lifetime begins when storage for the object is occupied and finishes when that storage is released or reused.

• For objects of POD types it is guaranteed by the standard that when you memcpy the contents of your object into an array of char or unsigned char, and then memcpy the contents back into your object, the object will hold its original value. Do note that there is no such guarantee for objects of non-POD types. Also, you can safely copy POD objects with memcpy. The following example assumes T is a POD-type:

  #define N sizeof(T)
  char buf[N];
  T obj; // obj initialized to its original value
  memcpy(buf, &obj, N); // between these two calls to memcpy,
  // obj might be modified
  memcpy(&obj, buf, N); // at this point, each subobject of obj of scalar type
  // holds its original value
  

• goto statement. As you may know, it is illegal (the compiler should issue an error) to make a jump via goto from a point where some variable was not yet in scope to a point where it is already in scope. This restriction applies only if the variable is of non-POD type. In the following example f() is ill-formed whereas g() is well-formed. Note that Microsoft's compiler is too liberal with this rule—it just issues a warning in both cases.

  int f()
  {
    struct NonPOD {NonPOD() {}};
    goto label;
    NonPOD x;
  label:
    return 0;
  }
  
  int g()
  {
    struct POD {int i; char c;};
    goto label;
    POD x;
  label:
    return 0;
  }
  

• It is guaranteed that there will be no padding in the beginning of a POD object. In other words, if a POD-class A's first member is of type T, you can safely reinterpret_cast from A* to T* and get the pointer to the first member and vice versa.

The list goes on and on…

Conclusion

It is important to understand what exactly a POD is because many language features, as you see, behave differently for them.

Try:

 DateTime.TryParseExact(txtStartDate.Text, formats, 
        System.Globalization.CultureInfo.InvariantCulture,
        System.Globalization.DateTimeStyles.None, out startDate)

Use a set to intersect on the dict.viewkeys() dictionary view:

l = {1, 5}
{key: d[key] for key in d.viewkeys() & l}

This is Python 2 syntax, in Python 3 use d.keys().

This still uses a loop, but at least the dictionary comprehension is a lot more readable. Using set intersections is very efficient, even if d or l is large.

Demo:

>>> d = {1:2, 3:4, 5:6, 7:8}
>>> l = {1, 5}
>>> {key: d[key] for key in d.viewkeys() & l}
{1: 2, 5: 6}

The OP is trying to count the number of properties in a JSON object. This could be done with an incremented temp variable in the iterator, but he seems to want to know the count before the iteration begins. A simple function that meets the need is provided at the bottom of this page.

Here's a cut and paste of the code, which worked for me:

function countProperties(obj) {
  var prop;
  var propCount = 0;

  for (prop in obj) {
    propCount++;
  }
  return propCount;
}

This should work well for a JSON object. For other objects, which may derive properties from their prototype chain, you would need to add a hasOwnProperty() test.

Since it depends on the version of your JRE which is used to run the maven command you propably dont want to disable DocLint per default in your pom.xml

Hence, from command line you can use the switch -Dadditionalparam=-Xdoclint:none.

Example: mvn clean install -Dadditionalparam=-Xdoclint:none

SEL is a type that represents a selector in Objective-C. The @selector() keyword returns a SEL that you describe. It's not a function pointer and you can't pass it any objects or references of any kind. For each variable in the selector (method), you have to represent that in the call to @selector. For example:

-(void)methodWithNoParameters;
SEL noParameterSelector = @selector(methodWithNoParameters);

-(void)methodWithOneParameter:(id)parameter;
SEL oneParameterSelector = @selector(methodWithOneParameter:); // notice the colon here

-(void)methodWIthTwoParameters:(id)parameterOne and:(id)parameterTwo;
SEL twoParameterSelector = @selector(methodWithTwoParameters:and:); // notice the parameter names are omitted

Selectors are generally passed to delegate methods and to callbacks to specify which method should be called on a specific object during a callback. For instance, when you create a timer, the callback method is specifically defined as:

-(void)someMethod:(NSTimer*)timer;

So when you schedule the timer you would use @selector to specify which method on your object will actually be responsible for the callback:

@implementation MyObject

-(void)myTimerCallback:(NSTimer*)timer
{
    // do some computations
    if( timerShouldEnd ) {
      [timer invalidate];
    }
}

@end

// ...

int main(int argc, const char **argv)
{
    // do setup stuff
    MyObject* obj = [[MyObject alloc] init];
    SEL mySelector = @selector(myTimerCallback:);
    [NSTimer scheduledTimerWithTimeInterval:30.0 target:obj selector:mySelector userInfo:nil repeats:YES];
    // do some tear-down
    return 0;
}

In this case you are specifying that the object obj be messaged with myTimerCallback every 30 seconds.

You only need a minimal change; single-quote the here-document delimiter after <<.

cat <<'EOF' >> brightup.sh

or equivalently backslash-escape it:

cat <<\EOF >>brightup.sh

Without quoting, the here document will undergo variable substitution, backticks will be evaluated, etc, like you discovered.

If you need to expand some, but not all, values, you need to individually escape the ones you want to prevent.

cat <<EOF >>brightup.sh
#!/bin/sh
# Created on $(date # : <<-- this will be evaluated before cat;)
echo "\$HOME will not be evaluated because it is backslash-escaped"
EOF

will produce

#!/bin/sh
# Created on Fri Feb 16 11:00:18 UTC 2018
echo "$HOME will not be evaluated because it is backslash-escaped"

As suggested by @fedorqui, here is the relevant section from man bash:

Here Documents

This type of redirection instructs the shell to read input from the current source until a line containing only delimiter (with no trailing blanks) is seen. All of the lines read up to that point are then used as the standard input for a command.

The format of here-documents is:

      <<[-]word
              here-document
      delimiter

No parameter expansion, command substitution, arithmetic expansion, or pathname expansion is performed on word. If any characters in word are quoted, the delimiter is the result of quote removal on word, and the lines in the here-document are not expanded. If word is unquoted, all lines of the here-document are subjected to parameter expansion, command substitution, and arithmetic expansion. In the latter case, the character sequence \<newline> is ignored, and \ must be used to quote the characters \, $, and `.

How is it not compatible with C#? Boolean.Parse and Boolean.TryParse is case insensitive and the parsing is done by comparing the value to Boolean.TrueString or Boolean.FalseString which are "True" and "False".

EDIT: When looking at the Boolean.ToString method in reflector it turns out that the strings are hard coded so the ToString method is as follows:

public override string ToString()
{
    if (!this)
    {
        return "False";
    }
    return "True";
}

On Windows you do not link with a .dll file directly – you must use the accompanying .lib file instead. To do that go to Project -> Properties -> Configuration Properties -> Linker -> Additional Dependencies and add path to your .lib as a next line.

You also must make sure that the .dll file is either in the directory contained by the %PATH% environment variable or that its copy is in Output Directory (by default, this is Debug\Release under your project's folder).

If you don't have access to the .lib file, one alternative is to load the .dll manually during runtime using WINAPI functions such as LoadLibrary and GetProcAddress.

Calculate the length of your text line and create a block which is the same size as the line of text. Center the block. If you have two lines you will need two blocks if they are different lengths. You could use a span tag and a br tag if you don't want extra spaces from the blocks. You can also use the pre tag to format inside a block.

And you can do this: style='text-align:center;'

For vertical see: http://www.w3schools.com/cssref/pr_pos_vertical-align.asp

Here is the best way for blocks and web page layouts, go here and learn flex the new standard which started in 2009. http://www.w3.org/TR/2014/WD-css-flexbox-1-20140325/#justify-content-property

Also w3schools has lots of flex examples.

dotnet is the official home of .NET on GitHub. It's a great starting point to find many .NET OSS projects from Microsoft and the community, including many that are part of the .NET Foundation.

This may be a great start to support Linux.

The link you referenced in your question recommends using django-cors-headers, whose documentation says to install the library

pip install django-cors-headers

and then add it to your installed apps:

INSTALLED_APPS = (
    ...
    'corsheaders',
    ...
)

You will also need to add a middleware class to listen in on responses:

MIDDLEWARE_CLASSES = (
    ...
    'corsheaders.middleware.CorsMiddleware',
    'django.middleware.common.CommonMiddleware',
    ...
)

Please browse the configuration section of its documentation, paying particular attention to the various CORS_ORIGIN_ settings. You'll need to set some of those based on your needs.

SELECT FORMAT(your_column_name,'dd/MM/yyyy hh:mm:ss') FROM your_table_name

Example-

SELECT FORMAT(GETDATE(),'dd/MM/yyyy hh:mm:ss')

I have made a simulation of the problem. looks like the issue is how we should Access Object Properties Dynamically Using Bracket Notation in Typescript

interface IUserProps {
  name: string;
  age: number;
}

export default class User {
  constructor(private data: IUserProps) {}

  get(propName: string): string | number {
    return this.data[propName as keyof IUserProps];
  }
}

I found a blog that might be helpful to understand this better.

here is a link https://www.nadershamma.dev/blog/2019/how-to-access-object-properties-dynamically-using-bracket-notation-in-typescript/

If you're writing scripts and will be echoing newlines as part of other messages several times, a nice cross-platform solution is to put a literal newline in a variable like so:

newline='
'

echo "first line$newlinesecond line"
echo "Error: example error message n${newline}${usage}" >&2 #requires usage to be defined

Starting from Angular version 9:

Breaking changes:

Components can no longer be imported through "@angular/material". Use the individual secondary entry-points, such as @angular/material/button.

This means that:

import { MatInputModule, MatCardModule } from "@angular/material";

becomes:

import { MatInputModule } from "@angular/material/input";
import { MatCardModule } from "@angular/material/card";

As explained here http://www.postgresonline.com/journal/categories/journal/archives/339-OGR-foreign-data-wrapper-on-Windows-first-taste.html

With ogr_fdw module, its possible to open the excel sheet as foreign table in pgsql and query it directly like any other regular tables in pgsql. This is useful for reading data from the same regularly updated table

To do this, the table header in your spreadsheet must be clean, the current ogr_fdw driver can't deal with wide-width character or new lines etc. with these characters, you will probably not be able to reference the column in pgsql due to encoding issue. (Major reason I can't use this wonderful extension.)

The ogr_fdw pre-build binaries for windows are located here http://winnie.postgis.net/download/windows/pg96/buildbot/extras/ change the version number in link to download corresponding builds. extract the file to pgsql folder to overwrite the same name sub-folders. restart pgsql. Before the test drive, the module needs to be installed by executing:

CREATE EXTENSION ogr_fdw;

Usage in brief:

1. use ogr_fdw_info.exe to prob the excel file for sheet name list

   ogr_fdw_info -s "C:/excel.xlsx"
   

2. use "ogr_fdw_info.exe -l" to prob a individual sheet and generate a table definition code.

   ogr_fdw_info -s "C:/excel.xlsx" -l "sheetname"
   

Execute the generated definition code in pgsql, a foreign table is created and mapped to your excel file. it can be queried like regular tables.

This is especially useful, if you have many small files with the same table structure. Just change the path and name in definition, and update the definition will be enough.

This plugin supports both XLSX and XLS file. According to the document it also possible to write data back into the spreadsheet file, but all the fancy formatting in your excel will be lost, the file is recreated on write.

If the excel file is huge. This will not work. which is another reason I didn't use this extension. It load data in one time. But this extension also support ODBC interface, it should be possible to use windows' ODBC excel file driver to create a ODBC source for the excel file and use ogr_fdw or any other pgsql's ODBC foreign data wrapper to query this intermediate ODBC source. This should be fairly stable.

The downside is that you can't change file location or name easily within pgsql like in the previous approach.

A friendly reminder. The permission issue applies to this fdw extensions. since its loaded into pgsql service. pgsql must have access privileged to the excel files.

with a form, just set method to "post"

<form action="blah.php" method="post">
  <input type="text" name="data" value="mydata" />
  <input type="submit" />
</form>

Use wwtd (what would travis do) ruby gem to run tests on your local machine roughly as they would run on travis.

It will recreate the build matrix and run each configuration, great to sanity check setup before pushing.

gem i wwtd
wwtd

The locks are always taken at DB level:-

Oracle official Document:- To avoid conflicts during a transaction, a DBMS uses locks, mechanisms for blocking access by others to the data that is being accessed by the transaction. (Note that in auto-commit mode, where each statement is a transaction, locks are held for only one statement.) After a lock is set, it remains in force until the transaction is committed or rolled back. For example, a DBMS could lock a row of a table until updates to it have been committed. The effect of this lock would be to prevent a user from getting a dirty read, that is, reading a value before it is made permanent. (Accessing an updated value that has not been committed is considered a dirty read because it is possible for that value to be rolled back to its previous value. If you read a value that is later rolled back, you will have read an invalid value.)

How locks are set is determined by what is called a transaction isolation level, which can range from not supporting transactions at all to supporting transactions that enforce very strict access rules.

One example of a transaction isolation level is TRANSACTION_READ_COMMITTED, which will not allow a value to be accessed until after it has been committed. In other words, if the transaction isolation level is set to TRANSACTION_READ_COMMITTED, the DBMS does not allow dirty reads to occur. The interface Connection includes five values that represent the transaction isolation levels you can use in JDBC.

pathToShell="/home/praveen/"   
chmod a+x $pathToShell"myShell.sh"
sh $pathToShell"myShell.sh"

Most likely the reason your push did not work is order of execution.

use is a compile time directive. You push is done at execution time:

push ( @INC,"directory_path/more_path");
use Foo.pm;  # In directory path/more_path

You can use a BEGIN block to get around this problem:

BEGIN {
    push ( @INC,"directory_path/more_path");
}
use Foo.pm;  # In directory path/more_path

IMO, it's clearest, and therefore best to use lib:

use lib "directory_path/more_path";
use Foo.pm;  # In directory path/more_path

See perlmod for information about BEGIN and other special blocks and when they execute.

Edit

For loading code relative to your script/library, I strongly endorse File::FindLib

You can say use File::FindLib 'my/test/libs'; to look for a library directory anywhere above your script in the path.

Say your work is structured like this:

   /home/me/projects/
    |- shared/
    |   |- bin/
    |   `- lib/
    `- ossum-thing/
       `- scripts 
           |- bin/
           `- lib/

Inside a script in ossum-thing/scripts/bin:

use File::FindLib 'lib/';
use File::FindLib 'shared/lib/';

Will find your library directories and add them to your @INC.

It's also useful to create a module that contains all the environment set-up needed to run your suite of tools and just load it in all the executables in your project.

use File::FindLib 'lib/MyEnvironment.pm'

Put this in your CSS:

white-space:nowrap;

Get more information here: http://www.w3.org/wiki/CSS/Properties/white-space

white-space

The white-space property declares how white space inside the element is handled.

Values

normal This value directs user agents to collapse sequences of white space, and break lines as necessary to fill line boxes.

pre This value prevents user agents from collapsing sequences of white space. Lines are only broken at newlines in the source, or at occurrences of "\A" in generated content.

nowrap This value collapses white space as for 'normal', but suppresses line breaks within text.

pre-wrap This value prevents user agents from collapsing sequences of white space. Lines are broken at newlines in the source, at occurrences of "\A" in generated content, and as necessary to fill line boxes.

pre-line This value directs user agents to collapse sequences of white space. Lines are broken at newlines in the source, at occurrences of "\A" in generated content, and as necessary to fill line boxes.

inherit Takes the same specified value as the property for the element's parent.

I had Pycharm for python.

1. Go to pycharm -> file -> setting -> project interpreter

2. Click on +

3. Search for "pycrypto" and install the package

Note: If you don't have "Microsoft Visual C++ Compiler for Python 2.7" installed then it will prompt for installation, once installation finished try the above steps it should work fine.

Since sockstat wasn't natively installed on my machine I hacked up stanwise's answer to use netstat instead..

netstat -nlp | grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:2000" | awk '{print $7}' | sed -e "s/\/.*//g""

When you use a decorator, you're replacing one function with another. In other words, if you have a decorator

def logged(func):
    def with_logging(*args, **kwargs):
        print(func.__name__ + " was called")
        return func(*args, **kwargs)
    return with_logging

then when you say

@logged
def f(x):
   """does some math"""
   return x + x * x

it's exactly the same as saying

def f(x):
    """does some math"""
    return x + x * x
f = logged(f)

and your function f is replaced with the function with_logging. Unfortunately, this means that if you then say

print(f.__name__)

it will print with_logging because that's the name of your new function. In fact, if you look at the docstring for f, it will be blank because with_logging has no docstring, and so the docstring you wrote won't be there anymore. Also, if you look at the pydoc result for that function, it won't be listed as taking one argument x; instead it'll be listed as taking *args and **kwargs because that's what with_logging takes.

If using a decorator always meant losing this information about a function, it would be a serious problem. That's why we have functools.wraps. This takes a function used in a decorator and adds the functionality of copying over the function name, docstring, arguments list, etc. And since wraps is itself a decorator, the following code does the correct thing:

from functools import wraps
def logged(func):
    @wraps(func)
    def with_logging(*args, **kwargs):
        print(func.__name__ + " was called")
        return func(*args, **kwargs)
    return with_logging

@logged
def f(x):
   """does some math"""
   return x + x * x

print(f.__name__)  # prints 'f'
print(f.__doc__)   # prints 'does some math'

As of 2018, there is also iText7 (A next iteration of old iTextSharp library) and its HTML to PDF package available: itext7.pdfhtml

Usage is straightforward:

HtmlConverter.ConvertToPdf(
    new FileInfo(@"Path\to\Html\File.html"),
    new FileInfo(@"Path\to\Pdf\File.pdf")
);

Method has many more overloads.

Update: iText* family of products has dual licensing model: free for open source, paid for commercial use.

Clarification (thanks @vgm64): if you're already in Terminal, this lets you quickly change to the topmost Finder window without leaving Terminal. This way, you can avoid using the mouse.

I've added the following to my .bash_profile so I can type cdff in Terminal at any time.

function ff { osascript -e 'tell application "Finder"'\
 -e "if (${1-1} <= (count Finder windows)) then"\
 -e "get POSIX path of (target of window ${1-1} as alias)"\
 -e 'else' -e 'get POSIX path of (desktop as alias)'\
 -e 'end if' -e 'end tell'; };\

function cdff { cd "`ff $@`"; };

This is from this macosxhints.com Terminal hint.

DateTime dt = DateTime.ParseExact("11-22-2012 12:00 am", "MM-dd-yyyy hh:mm tt", System.Globalization.CultureInfo.InvariantCulture);