Here's a module for calculating SHA1 hashes that is usable for Excel formulas eg. '=SHA1HASH("test")'. To use it, make a new module called 'module_sha1' and copy and paste it all in. This is based on some VBA code from http://vb.wikia.com/wiki/SHA-1.bas, with changes to support passing it a string, and executable from formulas in Excel cells.

' Based on: http://vb.wikia.com/wiki/SHA-1.bas
Option Explicit

Private Type FourBytes
    A As Byte
    B As Byte
    C As Byte
    D As Byte
End Type
Private Type OneLong
    L As Long
End Type

Function HexDefaultSHA1(Message() As Byte) As String
 Dim H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long
 DefaultSHA1 Message, H1, H2, H3, H4, H5
 HexDefaultSHA1 = DecToHex5(H1, H2, H3, H4, H5)
End Function

Function HexSHA1(Message() As Byte, ByVal Key1 As Long, ByVal Key2 As Long, ByVal Key3 As Long, ByVal Key4 As Long) As String
 Dim H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long
 xSHA1 Message, Key1, Key2, Key3, Key4, H1, H2, H3, H4, H5
 HexSHA1 = DecToHex5(H1, H2, H3, H4, H5)
End Function

Sub DefaultSHA1(Message() As Byte, H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long)
 xSHA1 Message, &H5A827999, &H6ED9EBA1, &H8F1BBCDC, &HCA62C1D6, H1, H2, H3, H4, H5
End Sub

Sub xSHA1(Message() As Byte, ByVal Key1 As Long, ByVal Key2 As Long, ByVal Key3 As Long, ByVal Key4 As Long, H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long)
 'CA62C1D68F1BBCDC6ED9EBA15A827999 + "abc" = "A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D"
 '"abc" = "A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D"

 Dim U As Long, P As Long
 Dim FB As FourBytes, OL As OneLong
 Dim i As Integer
 Dim W(80) As Long
 Dim A As Long, B As Long, C As Long, D As Long, E As Long
 Dim T As Long

 H1 = &H67452301: H2 = &HEFCDAB89: H3 = &H98BADCFE: H4 = &H10325476: H5 = &HC3D2E1F0

 U = UBound(Message) + 1: OL.L = U32ShiftLeft3(U): A = U \ &H20000000: LSet FB = OL 'U32ShiftRight29(U)

 ReDim Preserve Message(0 To (U + 8 And -64) + 63)
 Message(U) = 128

 U = UBound(Message)
 Message(U - 4) = A
 Message(U - 3) = FB.D
 Message(U - 2) = FB.C
 Message(U - 1) = FB.B
 Message(U) = FB.A

 While P < U
     For i = 0 To 15
         FB.D = Message(P)
         FB.C = Message(P + 1)
         FB.B = Message(P + 2)
         FB.A = Message(P + 3)
         LSet OL = FB
         W(i) = OL.L
         P = P + 4
     Next i

     For i = 16 To 79
         W(i) = U32RotateLeft1(W(i - 3) Xor W(i - 8) Xor W(i - 14) Xor W(i - 16))
     Next i

     A = H1: B = H2: C = H3: D = H4: E = H5

     For i = 0 To 19
         T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key1), ((B And C) Or ((Not B) And D)))
         E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
     Next i
     For i = 20 To 39
         T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key2), (B Xor C Xor D))
         E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
     Next i
     For i = 40 To 59
         T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key3), ((B And C) Or (B And D) Or (C And D)))
         E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
     Next i
     For i = 60 To 79
         T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key4), (B Xor C Xor D))
         E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
     Next i

     H1 = U32Add(H1, A): H2 = U32Add(H2, B): H3 = U32Add(H3, C): H4 = U32Add(H4, D): H5 = U32Add(H5, E)
 Wend
End Sub

Function U32Add(ByVal A As Long, ByVal B As Long) As Long
 If (A Xor B) < 0 Then
     U32Add = A + B
 Else
     U32Add = (A Xor &H80000000) + B Xor &H80000000
 End If
End Function

Function U32ShiftLeft3(ByVal A As Long) As Long
 U32ShiftLeft3 = (A And &HFFFFFFF) * 8
 If A And &H10000000 Then U32ShiftLeft3 = U32ShiftLeft3 Or &H80000000
End Function

Function U32ShiftRight29(ByVal A As Long) As Long
 U32ShiftRight29 = (A And &HE0000000) \ &H20000000 And 7
End Function

Function U32RotateLeft1(ByVal A As Long) As Long
 U32RotateLeft1 = (A And &H3FFFFFFF) * 2
 If A And &H40000000 Then U32RotateLeft1 = U32RotateLeft1 Or &H80000000
 If A And &H80000000 Then U32RotateLeft1 = U32RotateLeft1 Or 1
End Function
Function U32RotateLeft5(ByVal A As Long) As Long
 U32RotateLeft5 = (A And &H3FFFFFF) * 32 Or (A And &HF8000000) \ &H8000000 And 31
 If A And &H4000000 Then U32RotateLeft5 = U32RotateLeft5 Or &H80000000
End Function
Function U32RotateLeft30(ByVal A As Long) As Long
 U32RotateLeft30 = (A And 1) * &H40000000 Or (A And &HFFFC) \ 4 And &H3FFFFFFF
 If A And 2 Then U32RotateLeft30 = U32RotateLeft30 Or &H80000000
End Function

Function DecToHex5(ByVal H1 As Long, ByVal H2 As Long, ByVal H3 As Long, ByVal H4 As Long, ByVal H5 As Long) As String
 Dim H As String, L As Long
 DecToHex5 = "00000000 00000000 00000000 00000000 00000000"
 H = Hex(H1): L = Len(H): Mid(DecToHex5, 9 - L, L) = H
 H = Hex(H2): L = Len(H): Mid(DecToHex5, 18 - L, L) = H
 H = Hex(H3): L = Len(H): Mid(DecToHex5, 27 - L, L) = H
 H = Hex(H4): L = Len(H): Mid(DecToHex5, 36 - L, L) = H
 H = Hex(H5): L = Len(H): Mid(DecToHex5, 45 - L, L) = H
End Function

' Convert the string into bytes so we can use the above functions
' From Chris Hulbert: http://splinter.com.au/blog

Public Function SHA1HASH(str)
  Dim i As Integer
  Dim arr() As Byte
  ReDim arr(0 To Len(str) - 1) As Byte
  For i = 0 To Len(str) - 1
   arr(i) = Asc(Mid(str, i + 1, 1))
  Next i
  SHA1HASH = Replace(LCase(HexDefaultSHA1(arr)), " ", "")
End Function

Check out this MD5 implementation for JavaScript. Its BSD Licensed and really easy to use. Example:

md5 = hex_md5("message to digest")

For the correct and efficient computation of the hash value of a file (in Python 3):

• Open the file in binary mode (i.e. add 'b' to the filemode) to avoid character encoding and line-ending conversion issues.
• Don't read the complete file into memory, since that is a waste of memory. Instead, sequentially read it block by block and update the hash for each block.
• Eliminate double buffering, i.e. don't use buffered IO, because we already use an optimal block size.
• Use readinto() to avoid buffer churning.

Example:

import hashlib

def sha256sum(filename):
    h  = hashlib.sha256()
    b  = bytearray(128*1024)
    mv = memoryview(b)
    with open(filename, 'rb', buffering=0) as f:
        for n in iter(lambda : f.readinto(mv), 0):
            h.update(mv[:n])
    return h.hexdigest()

Totally based on @Whymarrh's answer, this is my implementation, tested and working fine, no dependencies:

public static String getSha1Hex(String clearString)
{
    try
    {
        MessageDigest messageDigest = MessageDigest.getInstance("SHA-1");
        messageDigest.update(clearString.getBytes("UTF-8"));
        byte[] bytes = messageDigest.digest();
        StringBuilder buffer = new StringBuilder();
        for (byte b : bytes)
        {
            buffer.append(Integer.toString((b & 0xff) + 0x100, 16).substring(1));
        }
        return buffer.toString();
    }
    catch (Exception ignored)
    {
        ignored.printStackTrace();
        return null;
    }
}

SHA1 is a cryptographic hash function, so the intention of the design was to avoid what you are trying to do.

However, breaking a SHA1 hash is technically possible. You can do so by just trying to guess what was hashed. This brute-force approach is of course not efficient, but that's pretty much the only way.

So to answer your question: yes, it is possible, but you need significant computing power. Some researchers estimate that it costs $70k - $120k.

As far as we can tell today, there is also no other way but to guess the hashed input. This is because operations such as mod eliminate information from your input. Suppose you calculate mod 5 and you get 0. What was the input? Was it 0, 5 or 500? You see, you can't really 'go back' in this case.

It is not printing correctly because you need to use Base64 encoding. With Java 8 you can encode using Base64 encoder class.

public static String toSHA1(byte[] convertme) throws NoSuchAlgorithmException {
    MessageDigest md = MessageDigest.getInstance("SHA-1");
    return Base64.getEncoder().encodeToString(md.digest(convertme));
}

Result

This will give you your expected output of 5baa61e4c9b93f3f0682250b6cf8331b7ee68fd8

Update: The site below is no longer running because, as they say on the site:

As of January 1, 2016, no publicly trusted CA is allowed to issue a SHA-1 certificate. In addition, SHA-1 support was removed by most modern browsers and operating systems in early 2017. Any new certificate you get should automatically use a SHA-2 algorithm for its signature.

Legacy clients will continue to accept SHA-1 certificates, and it is possible to have requested a certificate on December 31, 2015 that is valid for 39 months. So, it is possible to see SHA-1 certificates in the wild that expire in early 2019.

Original answer:

You can also use https://shaaaaaaaaaaaaa.com/ - set up to make this particular task easy. The site has a text box - you type in your site domain name, click the Go button and it then tells you whether the site is using SHA1 or SHA2.

Background

What people seem to be missing is that if the hacker has access to the database he probably also has access to the php file that hashes the password and can likely just modify that to send him all the successful user name password combos. If he doesn't have access to the web directory he could always just pick a password hash it, and write that into the database. In other words the hash algorithm doesn't really matter as much as system security, and limiting login attempts also if you don't use SSL then the attacker can just listen in on the connection to get the information. Unless you need the algorithm to take a long time to compute (for your own purposes) then SHA-256 or SHA-512 with a user specific salt should be enough.

As an added security measure set up a script (bash, batch, python, etc) or program and give it an obscure name and have it check and see if login.php has changed (check date/time stamp) and send you an email if it has. Also should probably log all attempts at login with admin rights and log all failed attempts to log into the database and have the logs emailed to you.

when I generate sha1 key using android studio

Gradle -> Tasks -> android-> signingReport and double click

That sha1 key is worked in debug mode but not worked when i build singed APK

so I generated sha 1 key using cmd it work

• go to java\jdk version\ bin folder

example

C:\>cd C:\Program Files\Java\jdk1.8.0_121\bin

and type

keytool -exportcert  -keystore {path of sign jks key } -list -v

example

keytool -exportcert  -keystore F:\testkey\damithk.jks -list -v

public string Hash(byte [] temp)
{
    using (SHA1Managed sha1 = new SHA1Managed())
    {
        var hash = sha1.ComputeHash(temp);
        return Convert.ToBase64String(hash);
    }
}

EDIT:

You could also specify the encoding when converting the byte array to string as follows:

return System.Text.Encoding.UTF8.GetString(hash);

or

return System.Text.Encoding.Unicode.GetString(hash);

If you need an index on the sha1 column, I suggest CHAR(40) for performance reasons. In my case the sha1 column is an email confirmation token, so on the landing page the query enters only with the token. In this case CHAR(40) with INDEX, in my opinion, is the best choice :)

If you want to adopt this method, remember to leave $raw_output = false.

sha1sum is quite a bit faster on Power9 than md5sum

$ uname -mov
#1 SMP Mon May 13 12:16:08 EDT 2019 ppc64le GNU/Linux

$ cat /proc/cpuinfo
processor       : 0
cpu             : POWER9, altivec supported
clock           : 2166.000000MHz
revision        : 2.2 (pvr 004e 1202)

$ ls -l linux-master.tar
-rw-rw-r-- 1 x x 829685760 Jan 29 14:30 linux-master.tar

$ time sha1sum linux-master.tar
10fbf911e254c4fe8e5eb2e605c6c02d29a88563  linux-master.tar

real    0m1.685s
user    0m1.528s
sys     0m0.156s

$ time md5sum linux-master.tar
d476375abacda064ae437a683c537ec4  linux-master.tar

real    0m2.942s
user    0m2.806s
sys     0m0.136s

$ time sum linux-master.tar
36928 810240

real    0m2.186s
user    0m1.917s
sys     0m0.268s

Access-Control-Allow-Origin is a CORS (Cross-Origin Resource Sharing) header.

When Site A tries to fetch content from Site B, Site B can send an Access-Control-Allow-Origin response header to tell the browser that the content of this page is accessible to certain origins. (An origin is a domain, plus a scheme and port number.) By default, Site B's pages are not accessible to any other origin; using the Access-Control-Allow-Origin header opens a door for cross-origin access by specific requesting origins.

For each resource/page that Site B wants to make accessible to Site A, Site B should serve its pages with the response header:

Access-Control-Allow-Origin: http://siteA.com

Modern browsers will not block cross-domain requests outright. If Site A requests a page from Site B, the browser will actually fetch the requested page on the network level and check if the response headers list Site A as a permitted requester domain. If Site B has not indicated that Site A is allowed to access this page, the browser will trigger the XMLHttpRequest's error event and deny the response data to the requesting JavaScript code.

Non-simple requests

What happens on the network level can be slightly more complex than explained above. If the request is a "non-simple" request, the browser first sends a data-less "preflight" OPTIONS request, to verify that the server will accept the request. A request is non-simple when either (or both):

• using an HTTP verb other than GET or POST (e.g. PUT, DELETE)
• using non-simple request headers; the only simple requests headers are:
  • Accept
  • Accept-Language
  • Content-Language
  • Content-Type (this is only simple when its value is application/x-www-form-urlencoded, multipart/form-data, or text/plain)

If the server responds to the OPTIONS preflight with appropriate response headers (Access-Control-Allow-Headers for non-simple headers, Access-Control-Allow-Methods for non-simple verbs) that match the non-simple verb and/or non-simple headers, then the browser sends the actual request.

Supposing that Site A wants to send a PUT request for /somePage, with a non-simple Content-Type value of application/json, the browser would first send a preflight request:

OPTIONS /somePage HTTP/1.1
Origin: http://siteA.com
Access-Control-Request-Method: PUT
Access-Control-Request-Headers: Content-Type

Note that Access-Control-Request-Method and Access-Control-Request-Headers are added by the browser automatically; you do not need to add them. This OPTIONS preflight gets the successful response headers:

Access-Control-Allow-Origin: http://siteA.com
Access-Control-Allow-Methods: GET, POST, PUT
Access-Control-Allow-Headers: Content-Type

When sending the actual request (after preflight is done), the behavior is identical to how a simple request is handled. In other words, a non-simple request whose preflight is successful is treated the same as a simple request (i.e., the server must still send Access-Control-Allow-Origin again for the actual response).

The browsers sends the actual request:

PUT /somePage HTTP/1.1
Origin: http://siteA.com
Content-Type: application/json

{ "myRequestContent": "JSON is so great" }

And the server sends back an Access-Control-Allow-Origin, just as it would for a simple request:

Access-Control-Allow-Origin: http://siteA.com

See Understanding XMLHttpRequest over CORS for a little more information about non-simple requests.

Despite setting up dimensions for the columns, they still seem to shrink as the window shrinks.

An initial setting of a flex container is flex-shrink: 1. That's why your columns are shrinking.

It doesn't matter what width you specify (it could be width: 10000px), with flex-shrink the specified width can be ignored and flex items are prevented from overflowing the container.

I'm trying to set up a flexbox with 3 columns where the left and right columns have a fixed width...

You will need to disable shrinking. Here are some options:

.left, .right {
     width: 230px;
     flex-shrink: 0;
 }  

OR

.left, .right {
     flex-basis: 230px;
     flex-shrink: 0;
}

OR, as recommended by the spec:

.left, .right {
    flex: 0 0 230px;    /* don't grow, don't shrink, stay fixed at 230px */
}

7.2. Components of Flexibility

Authors are encouraged to control flexibility using the flex shorthand rather than with its longhand properties directly, as the shorthand correctly resets any unspecified components to accommodate common uses.

More details here: What are the differences between flex-basis and width?

An additional thing I need to do is hide the right column based on user interaction, in which case the left column would still keep its fixed width, but the center column would fill the rest of the space.

Try this:

.center { flex: 1; }

This will allow the center column to consume available space, including the space of its siblings when they are removed.

Revised Fiddle

null=True sets NULL (versus NOT NULL) on the column in your DB. Blank values for Django field types such as DateTimeField or ForeignKey will be stored as NULL in the DB.

blank determines whether the field will be required in forms. This includes the admin and your custom forms. If blank=True then the field will not be required, whereas if it's False the field cannot be blank.

The combo of the two is so frequent because typically if you're going to allow a field to be blank in your form, you're going to also need your database to allow NULL values for that field. The exception is CharFields and TextFields, which in Django are never saved as NULL. Blank values are stored in the DB as an empty string ('').

A few examples:

models.DateTimeField(blank=True) # raises IntegrityError if blank

models.DateTimeField(null=True) # NULL allowed, but must be filled out in a form

Obviously, Those two options don't make logical sense to use (though there might be a use case for null=True, blank=False if you want a field to always be required in forms, optional when dealing with an object through something like the shell.)

models.CharField(blank=True) # No problem, blank is stored as ''

models.CharField(null=True) # NULL allowed, but will never be set as NULL

CHAR and TEXT types are never saved as NULL by Django, so null=True is unnecessary. However, you can manually set one of these fields to None to force set it as NULL. If you have a scenario where that might be necessary, you should still include null=True.

There is, in the latest standard, a keyword (export) that would help alleviate this issue, but it isn't implemented in any compiler that I'm aware of, other than Comeau.

See the FAQ-lite about this.

An array has two basic types.

Static Array: Fixed size array (its size should be declared at the start and can not be changed later)

Dynamic Array: No size limit is considered for this. (Pure dynamic arrays do not exist in Java. Instead, List is most encouraged.)

To declare a static array of Integer, string, float, etc., use the below declaration and initialization statements.

int[] intArray = new int[10];
String[] intArray = new int[10];
float[] intArray = new int[10];

// Here you have 10 index starting from 0 to 9

To use dynamic features, you have to use List... List is pure dynamic Array and there is no need to declare size at beginning. Below is the proper way to declare a list in Java -

ArrayList<String> myArray = new ArrayList<String>();
myArray.add("Value 1: something");
myArray.add("Value 2: something more");

You said you were willing to have your users click a button before the content loads. My solution was to have a button open a new browser window. That window sets a cookie for my domain, refreshes the opener and then closes.

So your main script could look like:

<?php if(count($_COOKIE) > 0): ?>
<!--Main Content Stuff-->
<?php else: ?>
<a href="/safari_cookie_fix.php" target="_blank">Click here to load content</a>
<?php endif ?>

Then safari_cookie_fix.php looks like:

<?php
setcookie("safari_test", "1");
?>
<html>
    <head>
        <title>Safari Fix</title>
        <script type="text/javascript" src="/libraries/prototype.min.js"></script>
    </head>
    <body>
    <script type="text/javascript">
    document.observe('dom:loaded', function(){
        window.opener.location.reload();
        window.close();
    })
    </script>
    This window should close automatically
    </body>
</html>

I think that the the align="center" aligns the content, so if you wanted to use that method, you would need to use it in a 'wraper' div - a div that just wraps the rest.

text-align is doing a similar sort of thing.

left:50% is ignored unless you set the div's position to be something like relative or absolute.

The generally accepted methods is to use the following properties

width:500px; // this can be what ever unit you want, you just have to define it
margin-left:auto;
margin-right:auto;

the margins being auto means they grow/shrink to match the browser window (or parent div)

UPDATE

Thanks to Meo for poiting this out, if you wanted to you could save time and use the short hand propery for the margin.

margin:0 auto;

this defines the top and bottom as 0 (as it is zero it does not matter about lack of units) and the left and right get defined as 'auto' You can then, if you wan't override say the top margin as you would with any other CSS rules.

In VSCode 1.24 you can do that.

Right click on EXPLORER on the side bar and checked Outline.

what do you think about this solution ?

It will add the new value or update an existing one.

Edit: edited to make it work with null and empty object

Edit2: edited to make it work with object in the object...

create or replace function updateJsonb(object1 json, object2 json)
returns jsonb
language plpgsql
as
$$
declare
    result jsonb;
    tempObj1 text;
    tempObj2 text;

begin
    tempObj1 = substr(object1::text, 2, length(object1::text) - 2); --remove the first { and last }
    tempObj2 = substr(object2::text, 2, length(object2::text) - 2); --remove the first { and last }

    IF object1::text != '{}' and object1::text != 'null' and object1::text != '[]' THEN
        result = ('{' || tempObj1 || ',' || tempObj2 || '}')::jsonb;
    ELSE
        result = ('{' || tempObj2 || '}')::jsonb;
    END IF;
    return result;
end;
$$;

usage:

update table_name
set data = updatejsonb(data, '{"test": "ok"}'::json)

If you are using svn+ssh to connect to the repository then the only thing that authenticates you and authorizes you is your ssh credentials. EVERYTHING else is ignored. Your username will be logged in subversion exactly as it is established in your ssh connection. An excellent explanation of this is at jimmyg.org/blog/2007/subversion-over-svnssh-on-debian.html

I was facing a problem like this, and had the idea of simply changing the innerHTML of the problematic object's children.

adiv.innerHTML = "<div...> the original html that js uses </div>";

Seems dirty, but it saved my life, as it works!

This may be old, but... if you change the link in google stock list as below:

https://www.google.com/finance?q=%5B(exchange%20%3D%3D%20%22NASDAQ%22)%5D&restype=company&noIL=1&num=30000

• note for the noIL=1&num=30000

It means, starting for row 1 to 30000. It shows all results in one page.

You may automate it using any language or just export the table to excel.

Hope it helps.

I wrote a little jQuery extension for this:

$.fn.nl2brText = function (sText) {
    var bReturnValue = 'undefined' == typeof sText;
    if(bReturnValue) {
        sText = $('<pre>').html(this.html().replace(/<br[^>]*>/i, '\n')).text();
    }
    var aElms = [];
    sText.split(/\r\n|\r|\n/).forEach(function(sSubstring) {
        if(aElms.length) {
            aElms.push(document.createElement('br'));
        }
        aElms.push(document.createTextNode(sSubstring));
    });
    var $aElms = $(aElms);
    if(bReturnValue) {
        return $aElms;
    }
    return this.empty().append($aElms);
};

A very simple "plug and play" spinner could be one of the spinning icons from the Font Awesome Wpf Package (Spinning icons).

The usage is quite simple, just install the nuget package:

PM> Install-Package FontAwesome.WPF

Then add the reference to the namespace

xmlns:fa="http://schemas.fontawesome.io/icons/"

and use the ImageAwesome control. Set the Spin="True" property and select one of the "Spinner", "Refresh", "Cog" and "CircleOutlinedNotched" Icon. It's scalable and can be resized by setting width and height.

<Window x:Class="Example.FontAwesome.WPF.Single"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:fa="http://schemas.fontawesome.io/icons/"
    Title="Single" Height="300" Width="300">
    <Grid  Margin="20">
        <fa:ImageAwesome Icon="Refresh" Spin="True" Height="48" Width="48" />
    </Grid>
</Window>

Just made this in a few minutes:

using System;
using System.Management;

namespace WindowsFormsApplication_CS
{
  class NetworkManagement
  {
    public void setIP(string ip_address, string subnet_mask)
    {
      ManagementClass objMC =
        new ManagementClass("Win32_NetworkAdapterConfiguration");
      ManagementObjectCollection objMOC = objMC.GetInstances();

      foreach (ManagementObject objMO in objMOC)
      {
        if ((bool)objMO["IPEnabled"])
        {
          ManagementBaseObject setIP;
          ManagementBaseObject newIP =
            objMO.GetMethodParameters("EnableStatic");

          newIP["IPAddress"] = new string[] { ip_address };
          newIP["SubnetMask"] = new string[] { subnet_mask };

          setIP = objMO.InvokeMethod("EnableStatic", newIP, null);
        }
      }
    }

    public void setGateway(string gateway)
    {
      ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
      ManagementObjectCollection objMOC = objMC.GetInstances();

      foreach (ManagementObject objMO in objMOC)
      {
        if ((bool)objMO["IPEnabled"])
        {
          ManagementBaseObject setGateway;
          ManagementBaseObject newGateway =
            objMO.GetMethodParameters("SetGateways");

          newGateway["DefaultIPGateway"] = new string[] { gateway };
          newGateway["GatewayCostMetric"] = new int[] { 1 };

          setGateway = objMO.InvokeMethod("SetGateways", newGateway, null);
        }
      }
    }

    public void setDNS(string NIC, string DNS)
    {
      ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
      ManagementObjectCollection objMOC = objMC.GetInstances();

      foreach (ManagementObject objMO in objMOC)
      {
        if ((bool)objMO["IPEnabled"])
        {
          // if you are using the System.Net.NetworkInformation.NetworkInterface
          // you'll need to change this line to
          // if (objMO["Caption"].ToString().Contains(NIC))
          // and pass in the Description property instead of the name 
          if (objMO["Caption"].Equals(NIC))
          {
            ManagementBaseObject newDNS =
              objMO.GetMethodParameters("SetDNSServerSearchOrder");
            newDNS["DNSServerSearchOrder"] = DNS.Split(',');
            ManagementBaseObject setDNS =
              objMO.InvokeMethod("SetDNSServerSearchOrder", newDNS, null);
          }
        }
      }
    }

    public void setWINS(string NIC, string priWINS, string secWINS)
    {
      ManagementClass objMC = new ManagementClass("Win32_NetworkAdapterConfiguration");
      ManagementObjectCollection objMOC = objMC.GetInstances();

      foreach (ManagementObject objMO in objMOC)
      {
        if ((bool)objMO["IPEnabled"])
        {
          if (objMO["Caption"].Equals(NIC))
          {
            ManagementBaseObject setWINS;
            ManagementBaseObject wins =
            objMO.GetMethodParameters("SetWINSServer");
            wins.SetPropertyValue("WINSPrimaryServer", priWINS);
            wins.SetPropertyValue("WINSSecondaryServer", secWINS);

            setWINS = objMO.InvokeMethod("SetWINSServer", wins, null);
          }
        }
      }
    } 
  }
}

There is an important difference between both. The for-in iterates over the properties of an object, so when the case is an array it will not only iterate over its elements but also over the "remove" function it has.

for (var i = 0; i < myArray.length; i++) { 
    console.log(i) 
}

//Output
0
1

for (var i in myArray) { 
    console.log(i) 
} 

// Output
0 
1 
remove

You could use the for-in with an if(myArray.hasOwnProperty(i)). Still, when iterating over arrays I always prefer to avoid this and just use the for(;;) statement.

I've not tried it myself, but Visual Studio 2005 (and later) support the concept of Debugger Visualizers. This allows you to customize how an object is shown in the IDE. Check out this article for more details.

http://davidhayden.com/blog/dave/archive/2005/12/26/2645.aspx

You'd better go with something like this. Just give an id to the div which you want to hide and make a function like this. call this function by adding onclick event on body.

function myFunction(event) { 

if(event.target.id!="target_id")
{ 
    document.getElementById("target_id").style.display="none";
  }
}

pch=20 returns a symbol sized between "." and 19.

It's a filled symbol (which is probably what you want).

Aside from that, even the base graphics system in R allows a user fine-grained control over symbol size, color, and shape. E.g.,

dfx = data.frame(ev1=1:10, ev2=sample(10:99, 10), ev3=10:1)

with(dfx, symbols(x=ev1, y=ev2, circles=ev3, inches=1/3,
                  ann=F, bg="steelblue2", fg=NULL))

This is an alternative:

- name: Install this only for local dev machine
  pip: name=pyramid
  delegate_to: localhost

I was getting this error on Vue 3. It was because defineComponent must be imported like this:

<script lang="ts">
import { defineComponent } from "vue";

export default defineComponent({
    name: "HelloWorld",
    props: {
        msg: String,
    },
    created() {
        this.testF();
    },
    methods: {
        testF() {
            console.log("testF");
        },
    },
});
</script>

First off, you have to specify you wish to use Document Literal style:

$client = new SoapClient(NULL, array(
    'location' => 'https://example.com/path/to/service',
    'uri' => 'http://example.com/wsdl',
    'trace' => 1,
    'use' => SOAP_LITERAL)
);

Then, you need to transform your data into a SoapVar; I've written a simple transform function:

function soapify(array $data)
{
        foreach ($data as &$value) {
                if (is_array($value)) {
                        $value = soapify($value);
                }
        }

        return new SoapVar($data, SOAP_ENC_OBJECT);
}

Then, you apply this transform function onto your data:

$data = soapify(array(
    'Acquirer' => array(
        'Id' => 'MyId',
        'UserId' => 'MyUserId',
        'Password' => 'MyPassword',
    ),
));

Finally, you call the service passing the Data parameter:

$method = 'Echo';

$result = $client->$method(new SoapParam($data, 'Data'));

Probably the easiest way would be use this app Hosts Editor . You need to have root

UPDATED for clarification and example

examples: http://jsfiddle.net/pxfunc/5kpeJ/

Method 1. input event

In modern browsers use the input event. This event will fire when the user is typing into a text field, pasting, undoing, basically anytime the value changed from one value to another.

In jQuery do that like this

$('#someInput').bind('input', function() { 
    $(this).val() // get the current value of the input field.
});

starting with jQuery 1.7, replace bind with on:

$('#someInput').on('input', function() { 
    $(this).val() // get the current value of the input field.
});

Method 2. keyup event

For older browsers use the keyup event (this will fire once a key on the keyboard has been released, this event can give a sort of false positive because when "w" is released the input value is changed and the keyup event fires, but also when the "shift" key is released the keyup event fires but no change has been made to the input.). Also this method doesn't fire if the user right-clicks and pastes from the context menu:

$('#someInput').keyup(function() {
    $(this).val() // get the current value of the input field.
});

Method 3. Timer (setInterval or setTimeout)

To get around the limitations of keyup you can set a timer to periodically check the value of the input to determine a change in value. You can use setInterval or setTimeout to do this timer check. See the marked answer on this SO question: jQuery textbox change event or see the fiddle for a working example using focus and blur events to start and stop the timer for a specific input field

My problem was that I had file 'default.jpg' in drawable folder and for some reason every resource was not resolved. Fixed after deleting that file!

Although above answers are correct but to make it simple for newbies, all you need to do is set margin, left and right. following code will do it provided that width is set and position is absolute:

margin: 0 auto;
left: 0;
right: 0;

Demo:

.centeredBox {_x000D_
    margin: 0 auto;_x000D_
    left: 0;_x000D_
    right: 0;_x000D_
   _x000D_
   _x000D_
   /** Position should be absolute */_x000D_
    position: absolute;_x000D_
    /** And box must have a width, any width */_x000D_
    width: 40%;_x000D_
    background: #faebd7;_x000D_
   _x000D_
   }

<div class="centeredBox">Centered Box</div>

You may use "Logical Partitioning" to switch data between tables:

By updating the Partition Column, data will be automatically moved to the other table:

here is the sample:

CREATE TABLE TBL_Part1
(id  INT NOT NULL,
 val VARCHAR(10) NULL,
 PartitionColumn  VARCHAR(10) CONSTRAINT CK_Part1 CHECK(PartitionColumn = 'TBL_Part1'),
 CONSTRAINT TBL_Part1_PK PRIMARY KEY(PartitionColumn, id)
);

CREATE TABLE TBL_Part2
(id  INT NOT NULL,
 val VARCHAR(10) NULL,
 PartitionColumn  VARCHAR(10) CONSTRAINT CK_Part2 CHECK(PartitionColumn = 'TBL_Part2'),
 CONSTRAINT TBL_Part2_PK  PRIMARY KEY(PartitionColumn, id)
);

GO

CREATE VIEW TBL(id, val, PartitionColumn)
WITH SCHEMABINDING
AS
     SELECT id, val, PartitionColumn FROM dbo.TBL_Part1
     UNION ALL  
     SELECT id, val, PartitionColumn FROM dbo.TBL_Part2;

GO

--Insert sample to TBL ( will be inserted to Part1 )
INSERT INTO TBL
VALUES(1, 'rec1', 'TBL_Part1');

INSERT INTO TBL
VALUES(2, 'rec2', 'TBL_Part1');

GO

--Query sub table to verify
SELECT * FROM TBL_Part1

GO
--move the data to table TBL_Part2 by Logical Partition switching technique
UPDATE TBL
  SET
      PartitionColumn = 'TBL_Part2';

GO

--Query sub table to verify
SELECT * FROM TBL_Part2

Martin R answer is the best approach, and as he said, because String conforms the SquenceType protocol, you can also enumerate a string, getting each character on each iteration.

let characters = "Hello"
var charactersArray: [Character] = []

for (index, character) in enumerate(characters) {
    //do something with the character at index
    charactersArray.append(character)
}

println(charactersArray)

A. If you use maven, an useful way to debug clashing jars is:

mvn dependency:tree

For example, for an exception:

java.lang.SecurityException: class "javax.servlet.HttpConstraintElement"'s signer information does not match signer information of other classes in the same package

we do:

mvn dependency:tree|grep servlet

Its output:

[INFO] +- javax.servlet:servlet-api:jar:2.5:compile
[INFO] +- javax.servlet:jstl:jar:1.2:compile
[INFO] |  +- org.eclipse.jetty.orbit:javax.servlet.jsp:jar:2.2.0.v201112011158:compile
[INFO] |  +- org.eclipse.jetty.orbit:javax.servlet.jsp.jstl:jar:1.2.0.v201105211821:compile
[INFO] |  +- org.eclipse.jetty.orbit:javax.servlet:jar:3.0.0.v201112011016:compile
[INFO] +- org.eclipse.jetty:jetty-servlet:jar:9.0.0.RC2:compile

shows clashing servlet-api 2.5 and javax.servlet 3.0.0.x.

B. Other useful hints (how to debug the security exception and how to exclude maven deps) are at the question at Signer information does not match.

I ran into a similar problem and stumbled on this question. I got an SMTP Authentication Error but my user name / pass was correct. Here is what fixed it. I read this:

https://support.google.com/accounts/answer/6010255

In a nutshell, google is not allowing you to log in via smtplib because it has flagged this sort of login as "less secure", so what you have to do is go to this link while you're logged in to your google account, and allow the access:

https://www.google.com/settings/security/lesssecureapps

Once that is set (see my screenshot below), it should work.

Login now works:

smtpserver = smtplib.SMTP("smtp.gmail.com", 587)
smtpserver.ehlo()
smtpserver.starttls()
smtpserver.ehlo()
smtpserver.login('[email protected]', 'me_pass')

Response after change:

(235, '2.7.0 Accepted')

Response prior:

smtplib.SMTPAuthenticationError: (535, '5.7.8 Username and Password not accepted. Learn more at\n5.7.8 http://support.google.com/mail/bin/answer.py?answer=14257 g66sm2224117qgf.37 - gsmtp')

Still not working? If you still get the SMTPAuthenticationError but now the code is 534, its because the location is unknown. Follow this link:

https://accounts.google.com/DisplayUnlockCaptcha

Click continue and this should give you 10 minutes for registering your new app. So proceed to doing another login attempt now and it should work.

UPDATE: This doesn't seem to work right away you may be stuck for a while getting this error in smptlib:

235 == 'Authentication successful'
503 == 'Error: already authenticated'

The message says to use the browser to sign in:

SMTPAuthenticationError: (534, '5.7.9 Please log in with your web browser and then try again. Learn more at\n5.7.9 https://support.google.com/mail/bin/answer.py?answer=78754 qo11sm4014232igb.17 - gsmtp')

After enabling 'lesssecureapps', go for a coffee, come back, and try the 'DisplayUnlockCaptcha' link again. From user experience, it may take up to an hour for the change to kick in. Then try the sign-in process again.

You can use span elements instead of the br if you want the white space method to work, as it depends on pseudo-elements which are "not defined" for replaced elements.

HTML

<p>
   To break lines<span class="line-break">in a paragraph,</span><span>don't use</span><span>the 'br' element.</span>
</p>

CSS

span {white-space: pre;}

span:after {content: ' ';}

span.line-break {display: block;}

span.line-break:after {content: none;}

DEMO

The line break is simply achieved by setting the appropriate span element to display:block.

By using IDs and/ or Classes in your HTML markup you can easily target every single or combination of span elements by CSS or use CSS selectors like nth-child().

So you can e.g. define different break points by using media queries for a responsive layout.

And you can also simply add/ remove/ toggle classes by Javascript (jQuery).

The "advantage" of this method is its robustness - works in every browser that supports pseudo-elements (see: Can I use - CSS Generated content).

As an alternative it is also possible to add a line break via pseudo-elements:

span.break:before {  
    content: "\A";
    white-space: pre;
}

DEMO

No, this is not supported in MySQL stored routine syntax.

Feel free to submit a feature request at bugs.mysql.com.

To Convert BEGIN OPENSSH PRIVATE KEY to BEGIN RSA PRIVATE KEY:

ssh-keygen -p -m PEM -f ~/.ssh/id_rsa

This is pretty pythonic:

newstring = 'abc'*5
print newstring[0:6]

This is the Windows version of a fork bomb.

%0 is the name of the currently executing batch file. A batch file that contains just this line:

%0|%0

Is going to recursively execute itself forever, quickly creating many processes and slowing the system down.

This is not a bug in windows, it is just a very stupid thing to do in a batch file.

The code below worked for me I used part of the code above inside the button class.

public Button signupB;

public void handleButtonClick (){

    try {
        FXMLLoader fxmlLoader = new FXMLLoader();
        fxmlLoader.setLocation(getClass().getResource("sceneNotAvailable.fxml"));
        /*
         * if "fx:controller" is not set in fxml
         * fxmlLoader.setController(NewWindowController);
         */
        Scene scene = new Scene(fxmlLoader.load(), 630, 400);
        Stage stage = new Stage();
        stage.setTitle("New Window");
        stage.setScene(scene);
        stage.show();
    } catch (IOException e) {
        Logger logger = Logger.getLogger(getClass().getName());
        logger.log(Level.SEVERE, "Failed to create new Window.", e);
    }

}

}

The problem is that buttonClickedEvent is a member function and you need a pointer to member in order to invoke it.

Try this:

void (MyClass::*func)(int);
func = &MyClass::buttonClickedEvent;

And then when you invoke it, you need an object of type MyClass to do so, for example this:

(this->*func)(<argument>);

http://www.codeguru.com/cpp/cpp/article.php/c17401/C-Tutorial-PointertoMember-Function.htm

You can use Microsoft.Office.Interop.Excel assembly to process excel files.

1. Right click on your project and go to Add reference. Add the Microsoft.Office.Interop.Excel assembly.
2. Include using Microsoft.Office.Interop.Excel; to make use of assembly.

Here is the sample code:

    using Microsoft.Office.Interop.Excel;

    //create the Application object we can use in the member functions.
    Microsoft.Office.Interop.Excel.Application _excelApp = new Microsoft.Office.Interop.Excel.Application();
    _excelApp.Visible = true;

    string fileName = "C:\\sampleExcelFile.xlsx";

    //open the workbook
    Workbook workbook = _excelApp.Workbooks.Open(fileName,
        Type.Missing, Type.Missing, Type.Missing, Type.Missing,
        Type.Missing, Type.Missing, Type.Missing, Type.Missing,
        Type.Missing, Type.Missing, Type.Missing, Type.Missing,
        Type.Missing, Type.Missing);

    //select the first sheet        
    Worksheet worksheet = (Worksheet)workbook.Worksheets[1];

    //find the used range in worksheet
    Range excelRange = worksheet.UsedRange;

    //get an object array of all of the cells in the worksheet (their values)
    object[,] valueArray = (object[,])excelRange.get_Value(
                XlRangeValueDataType.xlRangeValueDefault);

    //access the cells
    for (int row = 1;  row <= worksheet.UsedRange.Rows.Count; ++row)
    {
        for (int col = 1; col <= worksheet.UsedRange.Columns.Count; ++col)
        {
            //access each cell
            Debug.Print(valueArray[row, col].ToString());
        }
    }

    //clean up stuffs
    workbook.Close(false, Type.Missing, Type.Missing);
    Marshal.ReleaseComObject(workbook);

    _excelApp.Quit();
    Marshal.FinalReleaseComObject(_excelApp);

If data frame fits in a driver memory and you want to save to local files system you can convert Spark DataFrame to local Pandas DataFrame using toPandas method and then simply use to_csv:

df.toPandas().to_csv('mycsv.csv')

Otherwise you can use spark-csv:

• Spark 1.3

  df.save('mycsv.csv', 'com.databricks.spark.csv')
  

• Spark 1.4+

  df.write.format('com.databricks.spark.csv').save('mycsv.csv')
  

In Spark 2.0+ you can use csv data source directly:

df.write.csv('mycsv.csv')

This is what the code would look like in a batch file(tested, works):

powershell -Command "& {set-location 'HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings'; set-location ZoneMap\Domains; new-item SERVERNAME; set-location SERVERNAME; new-itemproperty . -Name http -Value 2 -Type DWORD;}"

Based on the information from:

http://dmitrysotnikov.wordpress.com/2008/06/27/powershell-script-in-a-bat-file/

'\r' is the carriage return character. The main times it would be useful are:

1. When reading text in binary mode, or which may come from a foreign OS, you'll find (and probably want to discard) it due to CR/LF line-endings from Windows-format text files.

2. When writing to an interactive terminal on stdout or stderr, '\r' can be used to move the cursor back to the beginning of the line, to overwrite it with new contents. This makes a nice primitive progress indicator.

The example code in your post is definitely a wrong way to use '\r'. It assumes a carriage return will precede the newline character at the end of a line entered, which is non-portable and only true on Windows. Instead the code should look for '\n' (newline), and discard any carriage return it finds before the newline. Or, it could use text mode and have the C library handle the translation (but text mode is ugly and probably should not be used).

You can also concatenate strings from across multiple lines with whitespaces.

$ cat file.txt
apple 10
oranges 22
grapes 7

Example 1:

awk '{aggr=aggr " " $2} END {print aggr}' file.txt
10 22 7

Example 2:

awk '{aggr=aggr ", " $1 ":" $2} END {print aggr}' file.txt
, apple:10, oranges:22, grapes:7

The specification for 'mailto' body says:

The body of a message is simply lines of US-ASCII characters. The only two limitations on the body are as follows:

• CR and LF MUST only occur together as CRLF; they MUST NOT appear independently in the body.
• Lines of characters in the body MUST be limited to 998 characters, and SHOULD be limited to 78 characters, excluding the CRLF.

https://tools.ietf.org/html/rfc5322#section-2.3

Generally nowadays most email clients are good at autolinking, but not all do, due to security concerns. You can likely find some work-arounds, but it won't necessarily work universally.

While you can't kill all open connections with a single command, you can create a set of queries to do that for you if there are too many to do by hand.

This example will create a series of KILL <pid>; queries for all some_user's connections from 192.168.1.1 to my_db.

SELECT 
CONCAT('KILL ', id, ';') 
FROM INFORMATION_SCHEMA.PROCESSLIST 
WHERE `User` = 'some_user' 
AND `Host` = '192.168.1.1';
AND `db` = 'my_db';

You can do this using a custom TypefaceSpan class. It's superior to the customView approach indicated above because it doesn't break when using other Action Bar elements like expanding action views.

The use of such a class would look something like this:

SpannableString s = new SpannableString("My Title");
s.setSpan(new TypefaceSpan(this, "MyTypeface.otf"), 0, s.length(),
        Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

// Update the action bar title with the TypefaceSpan instance
ActionBar actionBar = getActionBar();
actionBar.setTitle(s);

The custom TypefaceSpan class is passed your Activity context and the name of a typeface in your assets/fonts directory. It loads the file and caches a new Typeface instance in memory. The complete implementation of TypefaceSpan is surprisingly simple:

/**
 * Style a {@link Spannable} with a custom {@link Typeface}.
 * 
 * @author Tristan Waddington
 */
public class TypefaceSpan extends MetricAffectingSpan {
      /** An <code>LruCache</code> for previously loaded typefaces. */
    private static LruCache<String, Typeface> sTypefaceCache =
            new LruCache<String, Typeface>(12);

    private Typeface mTypeface;

    /**
     * Load the {@link Typeface} and apply to a {@link Spannable}.
     */
    public TypefaceSpan(Context context, String typefaceName) {
        mTypeface = sTypefaceCache.get(typefaceName);

        if (mTypeface == null) {
            mTypeface = Typeface.createFromAsset(context.getApplicationContext()
                    .getAssets(), String.format("fonts/%s", typefaceName));

            // Cache the loaded Typeface
            sTypefaceCache.put(typefaceName, mTypeface);
        }
    }

    @Override
    public void updateMeasureState(TextPaint p) {
        p.setTypeface(mTypeface);

        // Note: This flag is required for proper typeface rendering
        p.setFlags(p.getFlags() | Paint.SUBPIXEL_TEXT_FLAG);
    }

    @Override
    public void updateDrawState(TextPaint tp) {
        tp.setTypeface(mTypeface);

        // Note: This flag is required for proper typeface rendering
        tp.setFlags(tp.getFlags() | Paint.SUBPIXEL_TEXT_FLAG);
    }
}

Simply copy the above class into your project and implement it in your activity's onCreate method as shown above.

for mysql 'text':

@Column(columnDefinition = "TEXT")
private String description;

for mysql 'longtext':

@Lob
private String description;

Generate a hash, maybe with a secret only you know, then store it in your DB so it can be associated with the user. Should work quite well.

Small reusable method can be written for creating person json object to avoid duplicate code

JSONObject  getPerson(String firstName, String lastName){
   JSONObject person = new JSONObject();
   person .put("firstName", firstName);
   person .put("lastName", lastName);
   return person ;
} 

public JSONObject getJsonResponse(){

    JSONArray employees = new JSONArray();
    employees.put(getPerson("John","Doe"));
    employees.put(getPerson("Anna","Smith"));
    employees.put(getPerson("Peter","Jones"));

    JSONArray managers = new JSONArray();
    managers.put(getPerson("John","Doe"));
    managers.put(getPerson("Anna","Smith"));
    managers.put(getPerson("Peter","Jones"));

    JSONObject response= new JSONObject();
    response.put("employees", employees );
    response.put("manager", managers );
    return response;
  }

Adding MongoDb bin path in Environment path with \ worked for me

This is what my system path

C:\ProgramData\Oracle\Java\javapath;
...
...
Other path variables
...
;C:\Users\hitesh.sahu\AppData\Local\Android\sdk\platform-tools
;C:\Program Files\MongoDB\Server\3.2\bin\

Make sure:-

• Environment path must not have space between them
• Environment path must be saparated by ;

To create an empty vector use:

vec <- c();

Please note, I am not making any assumptions about the type of vector you require, e.g. numeric.

Once the vector has been created you can add elements to it as follows:

For example, to add the numeric value 1:

vec <- c(vec, 1);

or, to add a string value "a"

vec <- c(vec, "a");

While using Django with postgres 10.6, logging was enabled by default, and I was able to simply do:

tail -f /var/log/postgresql/*

Ubuntu 18.04, django 2+, python3+

Please Ensure you are using a virtualEnv this is how :

virtualenv -p python3 envname

source env/bin/activate
pip install pandas

on windows you have to add scripts exe in the CLASSPATH in order to use pip command

C:\Python34\Scripts\pip3.exe

i suggest you to use MINGW he can gives you a better environment to work with python

We can use four methods for this conversion

1. parseInt with radix 10
2. Number Constructor
3. Unary Plus Operator
4. Using mathematical functions (subtraction)

const numString = "065";_x000D_
_x000D_
//parseInt with radix=10_x000D_
let number = parseInt(numString, 10);_x000D_
console.log(number);_x000D_
_x000D_
// Number constructor_x000D_
number = Number(numString);_x000D_
console.log(number);_x000D_
_x000D_
// unary plus operator_x000D_
number = +numString;_x000D_
console.log(number);_x000D_
_x000D_
// conversion using mathematical function (subtraction)_x000D_
number = numString - 0;_x000D_
console.log(number);

Update(based on comments): Why doesn't this work on "large numbers"?

For the primitive type Number, the safest max value is 2^53-1(Number.MAX_SAFE_INTEGER).

console.log(Number.MAX_SAFE_INTEGER);

Now, lets consider the number string '099999999999999999999' and try to convert it using the above methods

const numString = '099999999999999999999';_x000D_
_x000D_
let parsedNumber = parseInt(numString, 10);_x000D_
console.log(`parseInt(radix=10) result: ${parsedNumber}`);_x000D_
_x000D_
parsedNumber = Number(numString);_x000D_
console.log(`Number conversion result: ${parsedNumber}`);_x000D_
_x000D_
parsedNumber = +numString;_x000D_
console.log(`Appending Unary plus operator result: ${parsedNumber}`);_x000D_
_x000D_
parsedNumber = numString - 0;_x000D_
console.log(`Subtracting zero conversion result: ${parsedNumber}`);

All results will be incorrect.

That's because, when converted, the numString value is greater than Number.MAX_SAFE_INTEGER. i.e.,

99999999999999999999 > 9007199254740991

This means all operation performed with the assumption that the stringcan be converted to number type fails.

For numbers greater than 2⁵³, primitive BigInt has been added recently. Check browser compatibility of BigInthere.

The conversion code will be like this.

const numString = '099999999999999999999';
const number = BigInt(numString);

P.S: Why radix is important for parseInt?

If radix is undefined or 0 (or absent), JavaScript assumes the following:

• If the input string begins with "0x" or "0X", radix is 16 (hexadecimal) and the remainder of the string is parsed
• If the input string begins with "0", radix is eight (octal) or 10 (decimal)
• If the input string begins with any other value, the radix is 10 (decimal)

Exactly which radix is chosen is implementation-dependent. ECMAScript 5 specifies that 10 (decimal) is used, but not all browsers support this yet.

For this reason, always specify a radix when using parseInt

GCC is taking steps towards C++11, which is probably why you now need to include cstddef in order to use the NULL constant. The preferred way in C++11 is to use the new nullptr keyword, which is implemented in GCC since version 4.6. nullptr is not implicitly convertible to integral types, so it can be used to disambiguate a call to a function which has been overloaded for both pointer and integral types:

void f(int x);
void f(void * ptr);

f(0);  // Passes int 0.
f(nullptr);  // Passes void * 0.

Easy solution would be to apply : idxmax() function to get indices of rows with max values. This would filter out all the rows with max value in the group.

In [365]: import pandas as pd

In [366]: df = pd.DataFrame({
'sp' : ['MM1', 'MM1', 'MM1', 'MM2', 'MM2', 'MM2', 'MM4', 'MM4','MM4'],
'mt' : ['S1', 'S1', 'S3', 'S3', 'S4', 'S4', 'S2', 'S2', 'S2'],
'val' : ['a', 'n', 'cb', 'mk', 'bg', 'dgb', 'rd', 'cb', 'uyi'],
'count' : [3,2,5,8,10,1,2,2,7]
})

In [367]: df                                                                                                       
Out[367]: 
   count  mt   sp  val
0      3  S1  MM1    a
1      2  S1  MM1    n
2      5  S3  MM1   cb
3      8  S3  MM2   mk
4     10  S4  MM2   bg
5      1  S4  MM2  dgb
6      2  S2  MM4   rd
7      2  S2  MM4   cb
8      7  S2  MM4  uyi


### Apply idxmax() and use .loc() on dataframe to filter the rows with max values:
In [368]: df.loc[df.groupby(["sp", "mt"])["count"].idxmax()]                                                       
Out[368]: 
   count  mt   sp  val
0      3  S1  MM1    a
2      5  S3  MM1   cb
3      8  S3  MM2   mk
4     10  S4  MM2   bg
8      7  S2  MM4  uyi

### Just to show what values are returned by .idxmax() above:
In [369]: df.groupby(["sp", "mt"])["count"].idxmax().values                                                        
Out[369]: array([0, 2, 3, 4, 8])

Try the method rstrip() (see doc Python 2 and Python 3)

>>> 'test string\n'.rstrip()
'test string'

Python's rstrip() method strips all kinds of trailing whitespace by default, not just one newline as Perl does with chomp.

>>> 'test string \n \r\n\n\r \n\n'.rstrip()
'test string'

To strip only newlines:

>>> 'test string \n \r\n\n\r \n\n'.rstrip('\n')
'test string \n \r\n\n\r '

There are also the methods strip(), lstrip() and strip():

>>> s = "   \n\r\n  \n  abc   def \n\r\n  \n  "
>>> s.strip()
'abc   def'
>>> s.lstrip()
'abc   def \n\r\n  \n  '
>>> s.rstrip()
'   \n\r\n  \n  abc   def'

What are you using to compile this? If there's an undefined reference error, usually it's because the .o file (which gets created from the .cpp file) doesn't exist and your compiler/build system is not able to link it.

Also, in your card.cpp, the function should be Card::Card() instead of void Card. The Card:: is scoping; it means that your Card() function is a member of the Card class (which it obviously is, since it's the constructor for that class). Without this, void Card is just a free function. Similarly,

void Card(Card::Rank rank, Card::Suit suit)

should be

Card::Card(Card::Rank rank, Card::Suit suit)

Also, in deck.cpp, you are saying #include "Deck.h" even though you referred to it as deck.h. The includes are case sensitive.

1. You can use an enum type in Java 5 and onwards for the purpose you have described. It is type safe.
2. A is an instance variable. (If it has the static modifier, then it becomes a static variable.) Constants just means the value doesn't change.
3. Instance variables are data members belonging to the object and not the class. Instance variable = Instance field.

If you are talking about the difference between instance variable and class variable, instance variable exist per object created. While class variable has only one copy per class loader regardless of the number of objects created.

Java 5 and up enum type

public enum Color{
 RED("Red"), GREEN("Green");

 private Color(String color){
    this.color = color;
  }

  private String color;

  public String getColor(){
    return this.color;
  }

  public String toString(){
    return this.color;
  }
}

If you wish to change the value of the enum you have created, provide a mutator method.

public enum Color{
 RED("Red"), GREEN("Green");

 private Color(String color){
    this.color = color;
  }

  private String color;

  public String getColor(){
    return this.color;
  }

  public void setColor(String color){
    this.color = color;
  }

  public String toString(){
    return this.color;
  }
}

Example of accessing:

public static void main(String args[]){
  System.out.println(Color.RED.getColor());

  // or

  System.out.println(Color.GREEN);
}

For all the answers using Calendar, you should use it like this instead

public static Date truncateDate(Date date) {
    Calendar c = Calendar.getInstance();
    c.setTime(date);
    c.set(Calendar.HOUR_OF_DAY, c.getActualMinimum(Calendar.HOUR_OF_DAY));
    c.set(Calendar.MINUTE, c.getActualMinimum(Calendar.MINUTE));
    c.set(Calendar.SECOND, c.getActualMinimum(Calendar.SECOND));
    c.set(Calendar.MILLISECOND, c.getActualMinimum(Calendar.MILLISECOND));
    return c.getTime();
}

But I prefer this:

public static Date truncateDate(Date date) {
    return new java.sql.Date(date.getTime());
}

Have a look at this fiddle http://jsfiddle.net/ganarajpr/MSjqL/

I have ( I assume! ) done exactly what you were doing and it seems to be working. Can you check what is not working here for you?

From this thread, there are different ways to do this:

double r = 5.1234;
System.out.println(r); // r is 5.1234

int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);

// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();

System.out.println(r); // r is 5.12

f = (float) (Math.round(n*100.0f)/100.0f);

DecimalFormat df2 = new DecimalFormat( "#,###,###,##0.00" );
double dd = 100.2397;
double dd2dec = new Double(df2.format(dd)).doubleValue();

// The value of dd2dec will be 100.24

The DecimalFormat() seems to be the most dynamic way to do it, and it is also very easy to understand when reading others code.

I realize this is quite late, but I needed something like this so I whipped up a quick and dirty method to do this.

+ (UIImage *) image:(UIImage *)image withAlpha:(CGFloat)alpha{

    // Create a pixel buffer in an easy to use format
    CGImageRef imageRef = [image CGImage];
    NSUInteger width = CGImageGetWidth(imageRef);
    NSUInteger height = CGImageGetHeight(imageRef);
    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

    UInt8 * m_PixelBuf = malloc(sizeof(UInt8) * height * width * 4);

    NSUInteger bytesPerPixel = 4;
    NSUInteger bytesPerRow = bytesPerPixel * width;
    NSUInteger bitsPerComponent = 8;
    CGContextRef context = CGBitmapContextCreate(m_PixelBuf, width, height,
                                                 bitsPerComponent, bytesPerRow, colorSpace,
                                                 kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);

    CGContextDrawImage(context, CGRectMake(0, 0, width, height), imageRef);
    CGContextRelease(context);

    //alter the alpha
    int length = height * width * 4;
    for (int i=0; i<length; i+=4)
    {
        m_PixelBuf[i+3] =  255*alpha;
    }


    //create a new image
    CGContextRef ctx = CGBitmapContextCreate(m_PixelBuf, width, height,
                                                 bitsPerComponent, bytesPerRow, colorSpace,
                                                 kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big);

    CGImageRef newImgRef = CGBitmapContextCreateImage(ctx);  
    CGColorSpaceRelease(colorSpace);
    CGContextRelease(ctx);  
    free(m_PixelBuf);

    UIImage *finalImage = [UIImage imageWithCGImage:newImgRef];
    CGImageRelease(newImgRef);  

    return finalImage;
}

These are the complete steps that I usually follow. I am posting this steps as short as possible and assuming that you know about Mac and Xcode projects. First of all, open the terminal and use the following commands, and press enter after each command.

Type in the following command if you don't already have CocoaPods installed:

sudo gem install cocoapods

Now please move to your Xcode Project directory by using this following command, and replace /Your Xcode Project Directory Path with the actual path to the directory:

cd /Your Xcode Project Directory Path

Below are instructions for how to use CocoaPods. Please wait for some time after each and every command entered to the terminal to execute successfully.

1. Searching for pods in terminal:

pod search networking (replace networking with which you want to search)

2. Creating the pod file:

pod init

3. Opening the pod file:

open -a Xcode Podfile

4. Adding the pods: (After adding your pods you must save the podfile first and then head back to the terminal again.)

target 'WebServiceUsingMantleAFNetworking' do
# platform :ios, '8.0' //Choose your version of iOS
pod 'AFNetworking', '~> 2.6.0’

end

OR

platform :ios, '8.0'
pod 'AFNetworking'
pod 'Mantle'
pod 'LBBlurredImage'
pod 'TSMessages'
pod 'ReactiveCocoa'

5. Installing the pods:

pod install

6. Check for updates of pods on existing project:

pod outdated

7. Update the existing pods:

pod update

8. Uninstall the Cocoapods from system:

sudo gem uninstall cocoapods

There is a complete tutorial for removing pods from your Xcode project on stackoverflow. You can check on this following link for more info.

How to remove CocoaPods from a project?

Thanks

Hope this helped.

Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~");
ConnectionStringsSection section = config.GetSection("connectionStrings") as ConnectionStringsSection;
//section.SectionInformation.UnprotectSection();
section.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");
config.Save();

Do you want to get the number of rows?

SELECT columnName, COUNT(*) AS row_count
FROM eventsTable
WHERE columnName = 'Business'
GROUP BY columnName

Use npm outdated to see Current and Latest version of all packages.

Then npm i packageName@versionNumber to install specific version : example npm i [email protected].

Or npm i packageName@latest to install latest version : example npm i browser-sync@latest.

1. Unique
2. cluster
3. non-cluster
4. column store
5. Index with included column
6. index on computed column
7. filtered
8. spatial
9. xml
10. full text

This is a quirk of the C grammar. A label (Cleanup:) is not allowed to appear immediately before a declaration (such as char *str ...;), only before a statement (printf(...);). In C89 this was no great difficulty because declarations could only appear at the very beginning of a block, so you could always move the label down a bit and avoid the issue. In C99 you can mix declarations and code, but you still can't put a label immediately before a declaration.

You can put a semicolon immediately after the label's colon (as suggested by Renan) to make there be an empty statement there; this is what I would do in machine-generated code. Alternatively, hoist the declaration to the top of the function:

int main (void) 
{
    char *str;
    printf("Hello ");
    goto Cleanup;
Cleanup:
    str = "World\n";
    printf("%s\n", str);
    return 0;
}

You can use the following as extension method

 public static void RemoveByValue<T,T1>(this Dictionary<T,T1> src , T1 Value)
    {
        foreach (var item in src.Where(kvp => kvp.Value.Equals( Value)).ToList())
        {
            src.Remove(item.Key);
        }
    }

#This valid till 4 digit number
numbers={1:'one', 2:'two', 3:'three', 4:'four', 5:'five', 6:'six', 7:'seven', 8:'eight', 9:'nine',
10:'ten', 11:'eleven', 12:'twelve', 13:'thirteen', 14:'fourteen', 15:'fifteen', 16:'sixteen',
17:'seventeen', 18:'eighteen', 19:'nineteen', 20:'twenty', 30:'thirty', 40:'forty', 50:'fifty', 
60:'sixty', 70:'seventy', 80:'eighty', 90:'ninety', 100:'hundred', 1000:'thousand'}

def my_fun(num):
    list = []
    num_len = len(str(num)) - 1
    while num_len > 0 and num > 0:
       while num_len > 0 and num > 0:
        if num in numbers and num < 1000:
            list.append(numbers[num])
            num_len = 0
        elif num < 100:
            list.extend([numbers[num - num%10], numbers[num%10]])
            num_len = 0
        else:
            quotent = num//10**num_len # 4567//1000= 4
            num = num % 10**num_len #4567%1000 =567
            if quotent != 0 :
                list.append(numbers[quotent])
                list.append(numbers[10**num_len])
            else:
                list.append(numbers[num])
            num_len -= 1
    return ' '.join(list)

995 is an error reported by the IO Completion Port. The error comes since you try to continue read from the socket when it has most likely been closed.

Receiving 0 bytes from EndRecieve means that the socket has been closed, as does most exceptions that EndRecieve will throw.

You need to start dealing with those situations.

Never ever ignore exceptions, they are thrown for a reason.

Update

There is nothing that says that the server does anything wrong. A connection can be lost for a lot of reasons such as idle connection being closed by a switch/router/firewall, shaky network, bad cables etc.

What I'm saying is that you MUST handle disconnections. The proper way of doing so is to dispose the socket and try to connect a new one at certain intervals.

As for the receive callback a more proper way of handling it is something like this (semi pseudo code):

public void OnDataReceived(IAsyncResult asyn)
{
    BLCommonFunctions.WriteLogger(0, "In :- OnDataReceived", ref swReceivedLogWriter, strLogPath, 0);

    try
    {
        SocketPacket client = (SocketPacket)asyn.AsyncState;

        int bytesReceived = client.thisSocket.EndReceive(asyn); //Here error is coming
        if (bytesReceived == 0)
        {
          HandleDisconnect(client);
          return;
        }
    }
    catch (Exception err)
    {
       HandleDisconnect(client);
    }

    try
    {
        string strHEX = BLCommonFunctions.ByteArrToHex(theSockId.dataBuffer);                    

        //do your handling here
    }
    catch (Exception err)
    {
        // Your logic threw an exception. handle it accordinhly
    }

    try
    {
       client.thisSocket.BeginRecieve(.. all parameters ..);
    }
    catch (Exception err)
    {
       HandleDisconnect(client);
    }
}

the reason to why I'm using three catch blocks is simply because the logic for the middle one is different from the other two. Exceptions from BeginReceive/EndReceive usually indicates socket disconnection while exceptions from your logic should not stop the socket receiving.

There's also another way to do this-

select TO_CHAR(SA.[RequestStartDate] , 'DD/MM/YYYY') as RequestStartDate from ... ;

Here is a modified version of CsabaS's answer, which accounts for explicit deny access rules. The function goes through all FileSystemAccessRules for a directory, and checks if the current user is in a role which has access to a directory. If no such roles are found or the user is in a role with denied access, the function returns false. To check read rights, pass FileSystemRights.Read to the function; for write rights, pass FileSystemRights.Write. If you want to check an arbitrary user's rights and not the current one's, substitute the currentUser WindowsIdentity for the desired WindowsIdentity. I would also advise against relying on functions like this to determine if the user can safely use the directory. This answer perfectly explains why.

    public static bool UserHasDirectoryAccessRights(string path, FileSystemRights accessRights)
    {
        var isInRoleWithAccess = false;

        try
        {
            var di = new DirectoryInfo(path);
            var acl = di.GetAccessControl();
            var rules = acl.GetAccessRules(true, true, typeof(NTAccount));

            var currentUser = WindowsIdentity.GetCurrent();
            var principal = new WindowsPrincipal(currentUser);
            foreach (AuthorizationRule rule in rules)
            {
                var fsAccessRule = rule as FileSystemAccessRule;
                if (fsAccessRule == null)
                    continue;

                if ((fsAccessRule.FileSystemRights & accessRights) > 0)
                {
                    var ntAccount = rule.IdentityReference as NTAccount;
                    if (ntAccount == null)
                        continue;

                    if (principal.IsInRole(ntAccount.Value))
                    {
                        if (fsAccessRule.AccessControlType == AccessControlType.Deny)
                            return false;
                        isInRoleWithAccess = true;
                    }
                }
            }
        }
        catch (UnauthorizedAccessException)
        {
            return false;
        }
        return isInRoleWithAccess;
    }

I've created an open source (BSD) C header that deals with this problem. It currently supports POSIX and Windows. Please check it out:

https://github.com/cxong/tinydir

tinydir_dir dir;
tinydir_open(&dir, "/path/to/dir");

while (dir.has_next)
{
    tinydir_file file;
    tinydir_readfile(&dir, &file);

    printf("%s", file.name);
    if (file.is_dir)
    {
        printf("/");
    }
    printf("\n");

    tinydir_next(&dir);
}

tinydir_close(&dir);

Trying to answer it from Linux Kernel's OS View

A program becomes a process when launched into memory. A process has its own address space meaning having various segments in memory such as .text segement for storing compiled code, .bss for storing uninitialized static or global variables, etc.
Each process would have its own program counter and user-space stack.

Inside kernel, each process would have its own kernel stack (which is separated from user space stack for security issues) and a structure named task_struct which is generally abstracted as the process control block, storing all the information regarding the process such as its priority, state,(and a whole lot of other chunk).
A process can have multiple threads of execution.

Coming to threads, they reside inside a process and share the address space of the parent process along with other resources which can be passed during thread creation such as filesystem resources, sharing pending signals, sharing data(variables and instructions) therefore making threads lightweight and hence allowing faster context switching.

Inside kernel, each thread has its own kernel stack along with the task_struct structure which defines the thread. Therefore kernel views threads of same process as different entities and are schedulable in themselves. Threads in same process share a common id called as thread group id(tgid), also they have a unique id called as the process id (pid).

Copy and paste this code into your Activity and when it is executed it will Toast the device's screen size category.

int screenSize = getResources().getConfiguration().screenLayout &
        Configuration.SCREENLAYOUT_SIZE_MASK;

String toastMsg;
switch(screenSize) {
    case Configuration.SCREENLAYOUT_SIZE_LARGE:
        toastMsg = "Large screen";
        break;
    case Configuration.SCREENLAYOUT_SIZE_NORMAL:
        toastMsg = "Normal screen";
        break;
    case Configuration.SCREENLAYOUT_SIZE_SMALL:
        toastMsg = "Small screen";
        break;
    default:
        toastMsg = "Screen size is neither large, normal or small";
}
Toast.makeText(this, toastMsg, Toast.LENGTH_LONG).show();

Python3 was recently added to EPEL7 as Python34.

There is ongoing (currently) effort to make packaging guidelines about how to package things for Python3 in EPEL7.

See https://bugzilla.redhat.com/show_bug.cgi?id=1219411
and https://lists.fedoraproject.org/pipermail/python-devel/2015-July/000721.html

I think that equality is something that can be absolutely determined. The trouble with null is that it's inherently unknown. Null combined with any other value is null - unknown. Asking SQL "Is my value equal to null?" would be unknown every single time, even if the input is null. I think the implementation of IS NULL makes it clear.

take a look at the following examples

http://threejs.org/examples/#misc_controls_orbit

http://threejs.org/examples/#misc_controls_trackball

there are other examples for different mouse controls, but both of these allow the camera to rotate around a point and zoom in and out with the mouse wheel, the main difference is OrbitControls enforces the camera up direction, and TrackballControls allows the camera to rotate upside-down.

All you have to do is include the controls in your html document

<script src="js/OrbitControls.js"></script>

and include this line in your source

controls = new THREE.OrbitControls( camera, renderer.domElement );

Run

php -m -c

in your terminal, and then look for [Zend Modules]. It should be somewhere there if it is loaded!

NB

If you're using Ubuntu, it may not show up here because you need to add the xdebug settings from /etc/php5/apache2/php.ini into /etc/php5/cli/php.ini. Mine are

[xdebug]
zend_extension = /usr/lib/php5/20121212/xdebug.so
xdebug.remote_enable=on
xdebug.remote_handler=dbgp
xdebug.remote_mode=req
xdebug.remote_host=localhost
xdebug.remote_port=9000

The right answer is:

android {
    ....
    ....

    sourceSets {
        main.java.srcDirs += 'src/main/<YOUR DIRECTORY>'
    }
}

Furthermore, if your external source directory is not under src/main, you could use a relative path like this:

sourceSets {
    main.java.srcDirs += 'src/main/../../../<YOUR DIRECTORY>'
}

Profiler is hands-down your best option.

You might need to copy a set of statements from profiler due to the prepare + execute steps involved.

You can try just putting the image in the source directory. You'd link it by replacing the file path with src="../imagenamehere.fileextension In your case, j3evn.jpg.

To avoid possible overlapping of execution, use a locking mechanism as described in that thread.

I was getting this error message when trying to close the dialog by using a button inside the dialog body. I tried to use $('#myDialog').dialog('close'); which did not work.

I ended up firing the click action of the 'x' button on the header using:

$('.modal-header:first').find('button:first').click();  

This example will help you to understand the React Life Cycle Hooks.

You can setState in getDerivedStateFromProps method i.e. static and trigger the method after props change in componentDidUpdate.

In componentDidUpdate you will get 3rd param which returns from getSnapshotBeforeUpdate.

You can check this codesandbox link

// Child component_x000D_
class Child extends React.Component {_x000D_
  // First thing called when component loaded_x000D_
  constructor(props) {_x000D_
    console.log("constructor");_x000D_
    super(props);_x000D_
    this.state = {_x000D_
      value: this.props.value,_x000D_
      color: "green"_x000D_
    };_x000D_
  }_x000D_
_x000D_
  // static method_x000D_
  // dont have access of 'this'_x000D_
  // return object will update the state_x000D_
  static getDerivedStateFromProps(props, state) {_x000D_
    console.log("getDerivedStateFromProps");_x000D_
    return {_x000D_
      value: props.value,_x000D_
      color: props.value % 2 === 0 ? "green" : "red"_x000D_
    };_x000D_
  }_x000D_
_x000D_
  // skip render if return false_x000D_
  shouldComponentUpdate(nextProps, nextState) {_x000D_
    console.log("shouldComponentUpdate");_x000D_
    // return nextState.color !== this.state.color;_x000D_
    return true;_x000D_
  }_x000D_
_x000D_
  // In between before real DOM updates (pre-commit)_x000D_
  // has access of 'this'_x000D_
  // return object will be captured in componentDidUpdate_x000D_
  getSnapshotBeforeUpdate(prevProps, prevState) {_x000D_
    console.log("getSnapshotBeforeUpdate");_x000D_
    return { oldValue: prevState.value };_x000D_
  }_x000D_
_x000D_
  // Calls after component updated_x000D_
  // has access of previous state and props with snapshot_x000D_
  // Can call methods here_x000D_
  // setState inside this will cause infinite loop_x000D_
  componentDidUpdate(prevProps, prevState, snapshot) {_x000D_
    console.log("componentDidUpdate: ", prevProps, prevState, snapshot);_x000D_
  }_x000D_
_x000D_
  static getDerivedStateFromError(error) {_x000D_
    console.log("getDerivedStateFromError");_x000D_
    return { hasError: true };_x000D_
  }_x000D_
_x000D_
  componentDidCatch(error, info) {_x000D_
    console.log("componentDidCatch: ", error, info);_x000D_
  }_x000D_
_x000D_
  // After component mount_x000D_
  // Good place to start AJAX call and initial state_x000D_
  componentDidMount() {_x000D_
    console.log("componentDidMount");_x000D_
    this.makeAjaxCall();_x000D_
  }_x000D_
_x000D_
  makeAjaxCall() {_x000D_
    console.log("makeAjaxCall");_x000D_
  }_x000D_
_x000D_
  onClick() {_x000D_
    console.log("state: ", this.state);_x000D_
  }_x000D_
_x000D_
  render() {_x000D_
    return (_x000D_
      <div style={{ border: "1px solid red", padding: "0px 10px 10px 10px" }}>_x000D_
        <p style={{ color: this.state.color }}>Color: {this.state.color}</p>_x000D_
        <button onClick={() => this.onClick()}>{this.props.value}</button>_x000D_
      </div>_x000D_
    );_x000D_
  }_x000D_
}_x000D_
_x000D_
// Parent component_x000D_
class Parent extends React.Component {_x000D_
  constructor(props) {_x000D_
    super(props);_x000D_
    this.state = { value: 1 };_x000D_
_x000D_
    this.tick = () => {_x000D_
      this.setState({_x000D_
        date: new Date(),_x000D_
        value: this.state.value + 1_x000D_
      });_x000D_
    };_x000D_
  }_x000D_
_x000D_
  componentDidMount() {_x000D_
    setTimeout(this.tick, 2000);_x000D_
  }_x000D_
_x000D_
  render() {_x000D_
    return (_x000D_
      <div style={{ border: "1px solid blue", padding: "0px 10px 10px 10px" }}>_x000D_
        <p>Parent</p>_x000D_
        <Child value={this.state.value} />_x000D_
      </div>_x000D_
    );_x000D_
  }_x000D_
}_x000D_
_x000D_
function App() {_x000D_
  return (_x000D_
    <React.Fragment>_x000D_
      <Parent />_x000D_
    </React.Fragment>_x000D_
  );_x000D_
}_x000D_
_x000D_
const rootElement = document.getElementById("root");_x000D_
ReactDOM.render(<App />, rootElement);

<div id="root"></div>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>

someone might get some help from my case I just put a hard coded color hex value without # like this by mistake android:textColor="FFA500" almost made me mad to findout. #FFA500 this solved my issue

If you have a form action and an input type="submit" inside form tags, it's going to submit the old fashioned way and basically refresh the page. When doing AJAX type transactions this isn't the desired effect you are after.

Remove the action. Or remove the form altogether, though in cases it does come in handy to serialize to cut your workload. If the form tags remain, move the button outside the form tags, or alternatively make it a link with an onclick or click handler as opposed to an input button. Jquery UI Buttons works great in this case because you can mimic an input button with an a tag element.

Try using the @ symbol before the url string. Import your css in the following manner:

import Vue from 'vue'

require('@/assets/styles/main.css')

In your App.vue file you can do this to import a css file in the style tag

<template>
  <div>
  </div>
</template>

<style scoped src="@/assets/styles/mystyles.css">
</style>

sudo npm install npm@latest -g

This worked for me in ubuntu 18.04

My problem turned out to be that I manually removed the Migrations folder. I did that because I wanted to back up the contents, so I simply dragged the folder out of the project. I later fixed the problem by putting it back in (after making a backup copy), then removing the Migrations folder by right-clicking it in Solutions Explorer and choosing Delete from the popup menu.

I had the same problem.

system configuration:-single system with window 7 sp1 server and client both are installed on same system

I was trying to access the window desktop. As some the answer say that your Sqlserver service don't have full access to the directory. This is totally right.

I solved this problem by doing a few simple steps

1. Go to All Programs->microsoft sql server 2008 -> configuration tools and then select sql server configuration manager.
2. Select the service and go to properties. In the build in Account dialog box select local system and then select ok button.

Steps 3 and 4 in image are demo with accessing the folder

window.location.reload(); in JavaScript

<meta http-equiv="refresh" content="1"> in HTML (where 1 = 1 second).

A more simple English explanation: jQuery is something that makes AJAX and other JavaScript tasks much easier.

Time to go back in time for a lesson. While we don't think about these things much in our fancy managed languages today, they are built on the same foundation, so let's look at how memory is managed in C.

Before I dive in, a quick explanation of what the term "pointer" means. A pointer is simply a variable that "points" to a location in memory. It doesn't contain the actual value at this area of memory, it contains the memory address to it. Think of a block of memory as a mailbox. The pointer would be the address to that mailbox.

In C, an array is simply a pointer with an offset, the offset specifies how far in memory to look. This provides O(1) access time.

  MyArray   [5]
     ^       ^
  Pointer  Offset

All other data structures either build upon this, or do not use adjacent memory for storage, resulting in poor random access look up time (Though there are other benefits to not using sequential memory).

For example, let's say we have an array with 6 numbers (6,4,2,3,1,5) in it, in memory it would look like this:

=====================================
|  6  |  4  |  2  |  3  |  1  |  5  |
=====================================

In an array, we know that each element is next to each other in memory. A C array (Called MyArray here) is simply a pointer to the first element:

=====================================
|  6  |  4  |  2  |  3  |  1  |  5  |
=====================================
   ^
MyArray

If we wanted to look up MyArray[4], internally it would be accessed like this:

   0     1     2     3     4 
=====================================
|  6  |  4  |  2  |  3  |  1  |  5  |
=====================================
                           ^
MyArray + 4 ---------------/
(Pointer + Offset)

Because we can directly access any element in the array by adding the offset to the pointer, we can look up any element in the same amount of time, regardless of the size of the array. This means that getting MyArray[1000] would take the same amount of time as getting MyArray[5].

An alternative data structure is a linked list. This is a linear list of pointers, each pointing to the next node

========    ========    ========    ========    ========
| Data |    | Data |    | Data |    | Data |    | Data |
|      | -> |      | -> |      | -> |      | -> |      | 
|  P1  |    |  P2  |    |  P3  |    |  P4  |    |  P5  |        
========    ========    ========    ========    ========

P(X) stands for Pointer to next node.

Note that I made each "node" into its own block. This is because they are not guaranteed to be (and most likely won't be) adjacent in memory.

If I want to access P3, I can't directly access it, because I don't know where it is in memory. All I know is where the root (P1) is, so instead I have to start at P1, and follow each pointer to the desired node.

This is a O(N) look up time (The look up cost increases as each element is added). It is much more expensive to get to P1000 compared to getting to P4.

Higher level data structures, such as hashtables, stacks and queues, all may use an array (or multiple arrays) internally, while Linked Lists and Binary Trees usually use nodes and pointers.

You might wonder why anyone would use a data structure that requires linear traversal to look up a value instead of just using an array, but they have their uses.

Take our array again. This time, I want to find the array element that holds the value '5'.

=====================================
|  6  |  4  |  2  |  3  |  1  |  5  |
=====================================
   ^     ^     ^     ^     ^   FOUND!

In this situation, I don't know what offset to add to the pointer to find it, so I have to start at 0, and work my way up until I find it. This means I have to perform 6 checks.

Because of this, searching for a value in an array is considered O(N). The cost of searching increases as the array gets larger.

Remember up above where I said that sometimes using a non sequential data structure can have advantages? Searching for data is one of these advantages and one of the best examples is the Binary Tree.

A Binary Tree is a data structure similar to a linked list, however instead of linking to a single node, each node can link to two children nodes.

         ==========
         |  Root  |         
         ==========
        /          \ 
  =========       =========
  | Child |       | Child |
  =========       =========
                  /       \
            =========    =========
            | Child |    | Child |
            =========    =========

 Assume that each connector is really a Pointer

When data is inserted into a binary tree, it uses several rules to decide where to place the new node. The basic concept is that if the new value is greater than the parents, it inserts it to the left, if it is lower, it inserts it to the right.

This means that the values in a binary tree could look like this:

         ==========
         |   100  |         
         ==========
        /          \ 
  =========       =========
  |  200  |       |   50  |
  =========       =========
                  /       \
            =========    =========
            |   75  |    |   25  |
            =========    =========

When searching a binary tree for the value of 75, we only need to visit 3 nodes ( O(log N) ) because of this structure:

• Is 75 less than 100? Look at Right Node
• Is 75 greater than 50? Look at Left Node
• There is the 75!

Even though there are 5 nodes in our tree, we did not need to look at the remaining two, because we knew that they (and their children) could not possibly contain the value we were looking for. This gives us a search time that at worst case means we have to visit every node, but in the best case we only have to visit a small portion of the nodes.

That is where arrays get beat, they provide a linear O(N) search time, despite O(1) access time.

This is an incredibly high level overview on data structures in memory, skipping over a lot of details, but hopefully it illustrates an array's strength and weakness compared to other data structures.

I had this same problem installing my app to a server. It ended up being the installer project, it wasn't installing all the files needed to run the web app. I tried to figure out where it was broken but in the end I had to revert the project to the previous version to fix it. Hope this helps someone...

Your http is being blocked by a firewall from F5 Networks called Application Security Manager (ASM). It produces messages like:

Please consult with your administrator.
Your support ID is: xxxxxxxxxxxx

So your application is passing some data that for some reason ASM detects as a threat. Give the support id to you network engineer to learn the specific reason.

I was wondering about this specifically for building software in Debian (the installed Debian system can be a 32-bit version with a 32 bit kernel, libraries, etc., or it can be a 64-bit version with stuff compiled for the 64-bit rather than 32-bit compatibility mode).

Debian packages themselves need to know what architecture they are for (of course) when they actually create the package with all of its metadata, including platform architecture, so there is a packaging tool that outputs it for other packaging tools and scripts to use, called dpkg-architecture. It includes both what it's configured to build for, as well as the current host. (Normally these are the same though.) Example output on a 64-bit machine:

DEB_BUILD_ARCH=amd64
DEB_BUILD_ARCH_OS=linux
DEB_BUILD_ARCH_CPU=amd64
DEB_BUILD_GNU_CPU=x86_64
DEB_BUILD_GNU_SYSTEM=linux-gnu
DEB_BUILD_GNU_TYPE=x86_64-linux-gnu
DEB_HOST_ARCH=amd64
DEB_HOST_ARCH_OS=linux
DEB_HOST_ARCH_CPU=amd64
DEB_HOST_GNU_CPU=x86_64
DEB_HOST_GNU_SYSTEM=linux-gnu
DEB_HOST_GNU_TYPE=x86_64-linux-gnu

You can print just one of those variables or do a test against their values with command line options to dpkg-architecture.

I have no idea how dpkg-architecture deduces the architecture, but you could look at its documentation or source code (dpkg-architecture and much of the dpkg system in general are Perl).

My initial guess without knowing the data would be that the UserNameToVerify is not a multiple of 4 in length. Check out the FromBase64String on msdn.

// Ok
byte[] b1 = Convert.FromBase64String("CoolDude");
// Exception
byte[] b2 = Convert.FromBase64String("MyMan");

The following code is perfectly fine and the right way (most exact, concise, and clear) to check if an object is null:

object obj = null;

//...

if (obj == null)
{
    // Do something
}

String.IsNullOrEmpty is a method existing for convenience so that you don't have to write the comparison code yourself:

private bool IsNullOrEmpty(string input)
{
    return input == null || input == string.Empty;
}

Additionally, there is a String.IsNullOrWhiteSpace method checking for null and whitespace characters, such as spaces, tabs etc.

Okay, seriously, in many cases at least, this is actually a bug. It shows up in VS Code as well, and it's the linter noticing that you've reached the end of the enclosing scope without closing the scanner object, but not recognizing that closing all open file descriptors is part of process termination. There's no resource leak because the resources are all cleaned up at termination, and the process goes away, leaving nowhere for the resource to be held.

I suggest Validator.nu's parser, based on the HTML5 parsing algorithm. It is the parser used in Mozilla from 2010-05-03

Using SQL Server Management Studio

To configure the default language option

1. In Object Explorer, right-click a server and select Properties.
2. Click the Misc server settings node.
3. In the Default language for users box, choose the language in which Microsoft SQL Server should display system messages. The default language is English.

Using Transact-SQL

To configure the default language option

1. Connect to the Database Engine.
2. From the Standard bar, click New Query.
3. Copy and paste the following example into the query window and click Execute.

This example shows how to use sp_configure to configure the default language option to French

USE AdventureWorks2012 ;
GO
EXEC sp_configure 'default language', 2 ;
GO
RECONFIGURE ;
GO

• Configure the default language Server Configuration Option

The 33 languages of SQL Server

| LANGID |        ALIAS        |
|--------|---------------------|
|    0   | English             |
|    1   | German              |
|    2   | French              |
|    3   | Japanese            |
|    4   | Danish              |
|    5   | Spanish             |
|    6   | Italian             |
|    7   | Dutch               |
|    8   | Norwegian           |
|    9   | Portuguese          |
|   10   | Finnish             |
|   11   | Swedish             |
|   12   | Czech               |
|   13   | Hungarian           |
|   14   | Polish              |
|   15   | Romanian            |
|   16   | Croatian            |
|   17   | Slovak              |
|   18   | Slovenian           |
|   19   | Greek               |
|   20   | Bulgarian           |
|   21   | Russian             |
|   22   | Turkish             |
|   23   | British English     |
|   24   | Estonian            |
|   25   | Latvian             |
|   26   | Lithuanian          |
|   27   | Brazilian           |
|   28   | Traditional Chinese |
|   29   | Korean              |
|   30   | Simplified Chinese  |
|   31   | Arabic              |
|   32   | Thai                |
|   33   | Bokmål              |

There are literal arrowheads in the Spacing Modifier Letters block:

U+02C2  ?   ˂  Modifier Letter Left  Arrowhead
U+02C3  ?   ˃  Modifier Letter Right Arrowhead
U+02C4  ^   ˄  Modifier Letter Up    Arrowhead
U+02C5  ?   ˅  Modifier Letter Down  Arrowhead

I've found this answer over here on stackoverflow which works perfectly for me:

use this in style

body {
    overflow-x: hidden;
    width: 100%;
}

Use this in head tag

<meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1.0" />
<meta name="apple-mobile-web-app-capable" content="yes" />

A slight addition of mine in case your body has padding (to prevent the device from scaling to the body content-box, and thus still adding a horizontal scrollbar):

body {
    overflow-x: hidden;
    width: 100%;
    -webkit-box-sizing: border-box;
       -moz-box-sizing: border-box;
            box-sizing: border-box;
}

If you want object key to be same as variable name, there's a short hand in ES 2015. New notations in ECMAScript 2015

var thetop = 10;
var obj = { thetop };
console.log(obj.thetop); // print 10

With React Functional way

import React, { useEffect } from "react";
import ReactDOM from "react-dom";
import Button from "@material-ui/core/Button";

const App = () => {
  const saySomething = (something) => {
    console.log(something);
  };
  useEffect(() => {
    saySomething("from useEffect");
  });
  const handleClick = (e) => {
    saySomething("element clicked");
  };
  return (
    <Button variant="contained" color="primary" onClick={handleClick}>
      Hello World
    </Button>
  );
};

ReactDOM.render(<App />, document.querySelector("#app"));

https://codesandbox.io/s/currying-meadow-gm9g0

Adding position: relative to the parent, and a max-height:100%; on div2 works.

<body>_x000D_
  <div id="div1" style="height: 500px;position:relative;">_x000D_
    <div id="div2" style="max-height:100%;overflow:auto;border:1px solid red;">_x000D_
      <div id="div3" style="height:1500px;border:5px solid yellow;">hello</div>_x000D_
    </div>_x000D_
  </div>_x000D_
_x000D_
</body>?

Update: The following shows the "updated" example and answer. http://jsfiddle.net/Wcgvt/181/

The secret there is to use box-sizing: border-box, and some padding to make the second div height 100%, but move it's content down 50px. Then wrap the content in a div with overflow: auto to contain the scrollbar. Pay attention to z-indexes to keep all the text selectable - hope this helps, several years later.

jCoverflip was just released and is very customizable.

I suggest you look at the article called "Short Introduction to log4j". It contains a short explanation of log levels and demonstrates how they can be used in practice. The basic idea of log levels is that you want to be able to configure how much detail the logs contain depending on the situation. For example, if you are trying to troubleshoot an issue, you would want the logs to be very verbose. In production, you might only want to see warnings and errors.

The log level for each component of your system is usually controlled through a parameter in a configuration file, so it's easy to change. Your code would contain various logging statements with different levels. When responding to an Exception, you might call Logger.error. If you want to print the value of a variable at any given point, you might call Logger.debug. This combination of a configurable logging level and logging statements within your program allow you full control over how your application will log its activity.

In the case of log4j at least, the ordering of log levels is:

DEBUG < INFO < WARN < ERROR < FATAL

Here is a short example from that article demonstrating how log levels work.

   // get a logger instance named "com.foo"
   Logger logger = Logger.getLogger("com.foo");

   // Now set its level. Normally you do not need to set the
   // level of a logger programmatically. This is usually done
   // in configuration files.
   logger.setLevel(Level.INFO);

   Logger barlogger = Logger.getLogger("com.foo.Bar");

   // This request is enabled, because WARN >= INFO.
   logger.warn("Low fuel level.");

   // This request is disabled, because DEBUG < INFO.
   logger.debug("Starting search for nearest gas station.");

   // The logger instance barlogger, named "com.foo.Bar",
   // will inherit its level from the logger named
   // "com.foo" Thus, the following request is enabled
   // because INFO >= INFO.
   barlogger.info("Located nearest gas station.");

   // This request is disabled, because DEBUG < INFO.
   barlogger.debug("Exiting gas station search");

Checkout intent properties like no history , clear back stack etc ... Intent.setFlags

Intent mStartActivity = new Intent(HomeActivity.this, SplashScreen.class);
int mPendingIntentId = 123456;
PendingIntent mPendingIntent = PendingIntent.getActivity(HomeActivity.this, mPendingIntentId, mStartActivity,
PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager mgr = (AlarmManager) HomeActivity.this.getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 100, mPendingIntent);
System.exit(0);

For those who are using Android Studio based on Jetbrains:

1. Goto Tools > Android > SDK Manager

2. Under Extras --> select the checkbox Intel x86 Emulator Accelorator

For those who are unable to use Nexus AVD can also try using Generic AVD.

1. Goto Tools > Android > AVD Manager

Then create a new Genreic AVD with something like QVGA and use for your app. This AVD does not use hardware acceleration.

Under Project->Properties->Debug, you should see a box for Command line arguments (This is in C# 2010, but it should basically be the same place)

Descending:

Collections.sort(mArrayList, new Comparator<CustomData>() {
    @Override
    public int compare(CustomData lhs, CustomData rhs) {
        // -1 - less than, 1 - greater than, 0 - equal, all inversed for descending
        return lhs.customInt > rhs.customInt ? -1 : (lhs.customInt < rhs.customInt) ? 1 : 0;
    }
});

Adding this configuration in application.properties file to fixed this issue easily.

spring.jpa.properties.hibernate.globally_quoted_identifiers=true

You are using USCOUNTER in a subshell, that's why the variable is not showing in the main shell.

Instead of cat FILE | while ..., do just a while ... done < $FILE. This way, you avoid the common problem of I set variables in a loop that's in a pipeline. Why do they disappear after the loop terminates? Or, why can't I pipe data to read?:

while read country _; do
  if [ "US" = "$country" ]; then
        USCOUNTER=$(expr $USCOUNTER + 1)
        echo "US counter $USCOUNTER"
  fi
done < "$FILE"

Note I also replaced the `` expression with a $().

I also replaced while read line; do country=$(echo "$line" | cut -d' ' -f1) with while read country _. This allows you to say while read var1 var2 ... varN where var1 contains the first word in the line, $var2 and so on, until $varN containing the remaining content.

I added return of object where attributes are parsed out style/values:

var getClassStyle = function(className){
    var x, sheets,classes;
    for( sheets=document.styleSheets.length-1; sheets>=0; sheets-- ){
        classes = document.styleSheets[sheets].rules || document.styleSheets[sheets].cssRules;
        for(x=0;x<classes.length;x++) {
            if(classes[x].selectorText===className){
                classStyleTxt = (classes[x].cssText ? classes[x].cssText : classes[x].style.cssText).match(/\{\s*([^{}]+)\s*\}/)[1];
                var classStyles = {};
                var styleSets = classStyleTxt.match(/([^;:]+:\s*[^;:]+\s*)/g);
                for(y=0;y<styleSets.length;y++){
                    var style = styleSets[y].match(/\s*([^:;]+):\s*([^;:]+)/);
                    if(style.length > 2)
                        classStyles[style[1]]=style[2];
                }
                return classStyles;
            }
        }
    }
    return false;
};

My resolution was adding the following import: import { of } from 'rxjs/observable/of';

So the overall code of hero.service.ts after the change is:

import { Injectable } from '@angular/core';
import { Hero } from './hero';
import { HEROES } from './mock-heroes';
import { of } from 'rxjs/observable/of';
import {Observable} from 'rxjs/Observable';

@Injectable()
export class HeroService {

  constructor() { }

  getHeroes(): Observable<Hero[]> {
    return of(HEROES);
  }
}

For evenly spacing out two buttons in a horizontal linear layout, I used 3 LinearLayout objects to act as spaces which are going to be automatically resized. I positioned these LinearLayout objects as follow:

[] Button1 [] Button2 []

([] represents a LinearLayout object used for spacing)

then I set each of these [] LinearLayout objects' weights to 1, and I get evenly spaced out buttons.

Hope this helps.

white-space: nowrap;: Will never break text, will keep other defaults

white-space: pre;: Will never break text, will keep multiple spaces after one another as multiple spaces, will break if explicitly written to break(pressing enter in html etc)

This should work for all browsers/devices:

function getActualWidth()
{
    var actualWidth = window.innerWidth ||
                      document.documentElement.clientWidth ||
                      document.body.clientWidth ||
                      document.body.offsetWidth;

    return actualWidth;
}

Observe if the view has the model required:

View

@model IEnumerable<WFAccess.Models.ViewModels.SiteViewModel>

<div class="row">
    <table class="table table-striped table-hover table-width-custom">
        <thead>
            <tr>
....

Controller

[HttpGet]
public ActionResult ListItems()
{
    SiteStore site = new SiteStore();
    site.GetSites();

    IEnumerable<SiteViewModel> sites =
        site.SitesList.Select(s => new SiteViewModel
        {
            Id = s.Id,
            Type = s.Type
        });

    return PartialView("_ListItems", sites);
}

In my case I Use a partial view but runs in normal views

I wanted a one-time solution:

ssh -o ServerAliveInterval=60 [email protected]

Stored it in an alias:

alias sshprod='ssh -v -o ServerAliveInterval=60 [email protected]'

Now can connect like this:

me@MyMachine:~$ sshprod

The simple way to get (one) element from array by id:

The find() method returns the value of the first element in the array that satisfies the provided testing function. Otherwise undefined is returned.

function isBigEnough(element) {
    return element >= 15;
}

var integers = [12, 5, 8, 130, 160, 44];
integers.find(isBigEnough); // 130  only one element - first

you don't need to use filter() and catch first element xx.filter()[0] like in comments above

The same for objects in array

var foo = {
"results" : [{
    "id" : 1,
    "name" : "Test"
}, {
    "id" : 2,
    "name" : "Beispiel"
}, {
    "id" : 3,
    "name" : "Sample"
}
]};

var secondElement = foo.results.find(function(item){
    return item.id == 2;
});

var json = JSON.stringify(secondElement);
console.log(json);

Of course if you have multiple id then use filter() method to get all objects. Cheers

function isBigEnough(element) {_x000D_
    return element >= 15;_x000D_
}_x000D_
_x000D_
var integers = [12, 5, 8, 130, 160, 44];_x000D_
integers.find(isBigEnough); // 130  only one element - first

var foo = {_x000D_
"results" : [{_x000D_
    "id" : 1,_x000D_
    "name" : "Test"_x000D_
}, {_x000D_
    "id" : 2,_x000D_
    "name" : "Beispiel"_x000D_
}, {_x000D_
    "id" : 3,_x000D_
    "name" : "Sample"_x000D_
}_x000D_
]};_x000D_
_x000D_
var secondElement = foo.results.find(function(item){_x000D_
    return item.id == 2;_x000D_
});_x000D_
_x000D_
var json = JSON.stringify(secondElement);_x000D_
console.log(json);

If you want to get the price of all cars you have to iterate through the array list:

public static void processCars(ArrayList<Cars> cars) {
   for (Car c : cars) {
       System.out.println (c.getPrice());
   }
}

In NuGet 3.x (Visual Studio 2015) you can just select the version from the UI

 background-image: url(/images/poster.png);
 background-position: center;
 background-position-y: 50px;
 background-repeat: no-repeat;

Heres my solution as of 5.4:

//Auth::routes();
// Authentication Routes...
Route::get('login', 'Auth\LoginController@showLoginForm')->name('login');
Route::post('login', 'Auth\LoginController@login');
Route::post('logout', 'Auth\LoginController@logout')->name('logout');

// Registration Routes...
//Route::get('register', 'Auth\RegisterController@showRegistrationForm')->name('register');
//Route::post('register', 'Auth\RegisterController@register');

// Password Reset Routes...
Route::get('password/reset', 'Auth\ForgotPasswordController@showLinkRequestForm')->name('password.request');
Route::post('password/email', 'Auth\ForgotPasswordController@sendResetLinkEmail')->name('password.email');
Route::get('password/reset/{token}', 'Auth\ResetPasswordController@showResetForm')->name('password.reset');
Route::post('password/reset', 'Auth\ResetPasswordController@reset');

Notice I've commented out Auth::routes() and the two registration routes.

Important: you must also make sure you remove all instances of route('register') in your app.blade layout, or Laravel will throw an error.

I don't have enough reputation to comment on the relevant answers, but to people reading this; adding .btn does not just add the pointer cursor but adds a lot of other styling as well. Which is great if it's a button and you want the bootstap button styling, but in other cases it would mess a lot up for other elements.

The best thing you can do, like Hari Das suggested, and which I also always do, is to add the following css:

.cursor-pointer {
  cursor: pointer;
}

After which you can add it to any element

<div class="cursor-pointer"> .. </div>

The ubber source for anything Rails is http://www.rubyonrails.org/ if they don't have it on the site you probably don't need it.

A quick cookbook is Ruby on Rails: Up and Running you can get it from O'Rielly or search Google for a on-line version. They walk you though the conventions of Rails and use Instant Rails which is ok.

A better Rails book "Agile Web Development with Rails" This is the soups to nuts of Rails. It walks you though downloading and setting up Rails, Gems, everything.

If you want are a Java 'guy' and want a transition book O'Reilly has "Rails for Java Developers" http://oreilly.com/catalog/9780977616695/?CMP=AFC-ak_book&ATT=Rails+for+Java+Developers

Go to magento/var/report and open the file with the Error log record number name i.e 673618173351 in your case. In that file you can find the complete description of the error.

For log files like system.log and exception.log, go to magento/var/log/.

setting the proxy address explicitly in web.config solved my problem

<system.net> 
    <defaultProxy> 
            <proxy usesystemdefault = "false" proxyaddress="http://address:port" bypassonlocal="false"/> 
    </defaultProxy> 
</system.net>

Resolving the “TCP error code 10060: A connection attempt failed…” while consuming a web service

No you cannot make a class extend to two classes.

A possible solution is to make it extend from another class, and make that class extend from another again.

Try imaskjs. It has Number, RegExp and other masks. Very simple to extend.

The framework creates threads to support each window you create, eg, as when you create a Form and .Show() it. When the windows close, the threads are terminated (ie, they exit).

This is normal behavior. However, if the application is creating threads, and there are a lot of thread exit messages corresponding to these threads (one could tell possibly by the thread's names, by giving them distinct names in the app), then perhaps this is indicative of a problem with the app creating threads when it shouldn't, due to a program logic error.

It would be an interesting followup to have the original poster let us know what s/he discovered regarding the problems with the server crashing. I have a feeling it wouldn't have anything to do with this... but it's hard to tell from the information posted.

If this is needed to run from within python you can just invoke subprocess

from subprocess import PIPE, Popen

pip_process = Popen(["pip freeze"], stdout=PIPE,
                   stderr=PIPE, shell=True)
stdout, stderr = pip_process.communicate()
print(stdout.decode("utf-8"))

set the state data inside constructor like this

constructor(props) {
    super(props);
    this.state = {
      productdatail: this.props.productdetailProps
    };
}

it will not going to work if u set in side componentDidMount() method through props.

for me it worked with

mvn clean install -DskipTests -e

Building on @Pvl's answer, you can include type safety on your returned value as well if you use overrides:

function dig<
  T,
  K1 extends keyof T
  >(obj: T, key1: K1): T[K1];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1]
  >(obj: T, key1: K1, key2: K2): T[K1][K2];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2]
  >(obj: T, key1: K1, key2: K2, key3: K3): T[K1][K2][K3];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4): T[K1][K2][K3][K4];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4, key5: K5): T[K1][K2][K3][K4][K5];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2?: K2, key3?: K3, key4?: K4, key5?: K5):
  T[K1] |
  T[K1][K2] |
  T[K1][K2][K3] |
  T[K1][K2][K3][K4] |
  T[K1][K2][K3][K4][K5] {
    let value: any = obj && obj[key1];

    if (key2) {
      value = value && value[key2];
    }

    if (key3) {
      value = value && value[key3];
    }

    if (key4) {
      value = value && value[key4];
    }

    if (key5) {
      value = value && value[key5];
    }

    return value;
}

Example on playground.

While you can access global variables without the global keyword, if you want to modify them you have to use the global keyword. For example:

foo = 1
def test():
    foo = 2 # new local foo

def blub():
    global foo
    foo = 3 # changes the value of the global foo

In your case, you're just accessing the list sub.

Executing seq(1, 10, 1) does what 1:10 does. You can change the last parameter of seq, i.e. by, to be the step of whatever size you like.

> #a vector of even numbers
> seq(0, 10, by=2) # Explicitly specifying "by" only to increase readability 
> [1]  0  2  4  6  8 10

Make sure you shouldn't have to open the MVC project like File->Open Web Site use File->Open Project instead.

F:\PuppetLab\src\boxes>vagrant box add precise32 file:///F:/PuppetLab/src/boxes/precise32.box
==> box: Adding box 'precise32' (v0) for provider:
    box: Downloading: file:///F:/PuppetLab/src/boxes/precise32.box
    box: Progress: 100% (Rate: 1200k/s, Estimated time remaining: --:--:--)
==> box: Successfully added box 'precise32' (v0) for 'virtualbox'!

I ended up finding MinimalistTelnet and adapted it to my uses. I ended up needing to be able to heavily modify the code due to the unique** device that I am attempting to attach to.

** Unique in this instance can be validly interpreted as brain-dead.

callback from adapter to activity can be done using registering listener in form of interface: Make an interface:

      public MyInterface{
         public void  yourmethod(//incase needs parameters );
         }

In Adapter Let's Say MyAdapter:

    public MyAdapter extends BaseAdapter{
       private MyInterface listener;

    MyAdapter(Context context){
        try {
            this. listener = (( MyInterface ) context);
              } catch (ClassCastException e) {
               throw new ClassCastException("Activity must implement MyInterface");
          }

//do this where u need to fire listener l

          try {
                listener . yourmethod ();
            } catch (ClassCastException exception) {
               // do something
            }

      In Activity Implement your method:


         MyActivity extends AppCompatActivity implements MyInterface{

                yourmethod(){
                //do whatever you want
                     }
                     }

High resolution timers that provide a resolution of 1 microsecond are system-specific, so you will have to use different methods to achieve this on different OS platforms. You may be interested in checking out the following article, which implements a cross-platform C++ timer class based on the functions described below:

• [Song Ho Ahn - High Resolution Timer][1]

Windows

The Windows API provides extremely high resolution timer functions: QueryPerformanceCounter(), which returns the current elapsed ticks, and QueryPerformanceFrequency(), which returns the number of ticks per second.

Example:

#include <stdio.h>
#include <windows.h>                // for Windows APIs

int main(void)
{
    LARGE_INTEGER frequency;        // ticks per second
    LARGE_INTEGER t1, t2;           // ticks
    double elapsedTime;

    // get ticks per second
    QueryPerformanceFrequency(&frequency);

    // start timer
    QueryPerformanceCounter(&t1);

    // do something
    // ...

    // stop timer
    QueryPerformanceCounter(&t2);

    // compute and print the elapsed time in millisec
    elapsedTime = (t2.QuadPart - t1.QuadPart) * 1000.0 / frequency.QuadPart;
    printf("%f ms.\n", elapsedTime);
}

Linux, Unix, and Mac

For Unix or Linux based system, you can use gettimeofday(). This function is declared in "sys/time.h".

Example:

#include <stdio.h>
#include <sys/time.h>                // for gettimeofday()

int main(void)
{
    struct timeval t1, t2;
    double elapsedTime;

    // start timer
    gettimeofday(&t1, NULL);

    // do something
    // ...

    // stop timer
    gettimeofday(&t2, NULL);

    // compute and print the elapsed time in millisec
    elapsedTime = (t2.tv_sec - t1.tv_sec) * 1000.0;      // sec to ms
    elapsedTime += (t2.tv_usec - t1.tv_usec) / 1000.0;   // us to ms
    printf("%f ms.\n", elapsedTime);
}

Another example using PowerShell for set permissions (File / Directory) :

Verify permissions

Get-Acl "C:\file.txt" | fl *

Apply full permissions for everyone

$acl = Get-Acl "C:\file.txt"
$accessRule = New-Object System.Security.AccessControl.FileSystemAccessRule("everyone","FullControl","Allow")
$acl.SetAccessRule($accessRule)
$acl | Set-Acl "C:\file.txt"

Screenshots:

Hope this helps

Default assignments apply to class members, but not to local variables. As Eric Lippert explained it in this answer, Microsoft could have initialized locals by default, but they choose not to do it because using an unassigned local is almost certainly a bug.

import sys
sys.executable

will give you the interpreter. You can select the interpreter you want when you create a new notebook. Make sure the path to your anaconda interpreter is added to your path (somewhere in your bashrc/bash_profile most likely).

For example I used to have the following line in my .bash_profile, that I added manually :

export PATH="$HOME/anaconda3/bin:$PATH"

EDIT: As mentioned in a comment, this is not the proper way to add anaconda to the path. Quoting Anaconda's doc, this should be done instead after install, using conda init:

Should I add Anaconda to the macOS or Linux PATH?

We do not recommend adding Anaconda to the PATH manually. During installation, you will be asked “Do you wish the installer to initialize Anaconda3 by running conda init?” We recommend “yes”. If you enter “no”, then conda will not modify your shell scripts at all. In order to initialize after the installation process is done, first run source <path to conda>/bin/activate and then run conda init

The following worked the best for me, basically I'm scrapping any existing tooltip and not bothering to show the new tooltip. If calling show on the tooltip like in other answers, it pops up even if the cursor isn't hovering above it.

The reason I went for this solution is that the other solutions, re-using the existing tooltip, led to some strange issues with the tooltip sometimes not showing when hovering the cursor above the element.

function updateTooltip(element, tooltip) {
    if (element.data('tooltip') != null) {
        element.tooltip('hide');
        element.removeData('tooltip');
    }
    element.tooltip({
        title: tooltip
    });
}

All it takes is a bit of XAML...

<Window x:Class="WCSamples.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Window.CommandBindings>
        <CommandBinding Command="ApplicationCommands.Close"
                        Executed="CloseCommandHandler"/>
    </Window.CommandBindings>
    <StackPanel Name="MainStackPanel">
        <Button Command="ApplicationCommands.Close" 
                Content="Close Window" />
    </StackPanel>
</Window>

And a bit of C#...

private void CloseCommandHandler(object sender, ExecutedRoutedEventArgs e)
{
    this.Close();
}

(adapted from this MSDN article)

jwilner's response is spot on. I was exploring to see if there's a faster option, since in my experience, summing flat arrays is (strangely) faster than counting. This code seems faster:

df.isnull().values.any()

import numpy as np
import pandas as pd
import perfplot


def setup(n):
    df = pd.DataFrame(np.random.randn(n))
    df[df > 0.9] = np.nan
    return df


def isnull_any(df):
    return df.isnull().any()


def isnull_values_sum(df):
    return df.isnull().values.sum() > 0


def isnull_sum(df):
    return df.isnull().sum() > 0


def isnull_values_any(df):
    return df.isnull().values.any()


perfplot.save(
    "out.png",
    setup=setup,
    kernels=[isnull_any, isnull_values_sum, isnull_sum, isnull_values_any],
    n_range=[2 ** k for k in range(25)],
)

df.isnull().sum().sum() is a bit slower, but of course, has additional information -- the number of NaNs.

You Just need to subtract one day from today's date. In Python datetime.timedelta object lets you create specific spans of time as a timedelta object.

datetime.timedelta(1) gives you the duration of "one day" and is subtractable from a datetime object. After you subtracted the objects you can use datetime.strftime in order to convert the result --which is a date object-- to string format based on your format of choice:

>>> from datetime import datetime, timedelta
>>> yesterday = datetime.now() - timedelta(1)

>>> type(yesterday)                                                                                                                                                                                    
>>> datetime.datetime    

>>> datetime.strftime(yesterday, '%Y-%m-%d')
'2015-05-26'

Note that instead of calling the datetime.strftime function, you can also directly use strftime method of datetime objects:

>>> (datetime.now() - timedelta(1)).strftime('%Y-%m-%d')
'2015-05-26'

As a function:

def yesterday(string=False):
    yesterday = datetime.now() - timedelta(1)
    if string:
        return yesterday.strftime('%Y-%m-%d')
    return yesterday

It's as simple as:

if (value.compareTo(BigDecimal.ZERO) > 0)

The documentation for compareTo actually specifies that it will return -1, 0 or 1, but the more general Comparable<T>.compareTo method only guarantees less than zero, zero, or greater than zero for the appropriate three cases - so I typically just stick to that comparison.

I faced the same issue. Just download and install the SQL Server suite from the following link :http://www.microsoft.com/en-US/download/details.aspx?id=42299

restart your SSMS and you should be able to "Register Local Servers" via right-click on "Local Servers Groups", select "tasks", click "register local servers"

You are sending a array of string

var usersRoles = [];
jQuery("#dualSelectRoles2 option").each(function () {
    usersRoles.push(jQuery(this).val());
});   

So change model type accordingly

 public ActionResult AddUser(List<string> model)
 {
 }

you export the project from Eclipse and then import the project from Android Studio, this should solve your problem, open a eclipse project without importing it from Android Studio you can cause problems, look at: (Excuse my language, I speak Spanish.) http://developer.android.com/intl/es/sdk/installing/migrate.html

Give them a class and add your style to the class.

<style>
  p {
    color: red;
  }
  .paragraph1 {
    font-size: 18px;
  }
  .paragraph2 {
    font-size: 13px;
  }
</style>

<p class="paragraph1">Paragraph 1</p>
<p class="paragraph2">Paragraph 2</p>

Check this EXAMPLE

To achieve what you want without removing any styles you have to make the z-index of the '.parent' class bigger then the '.wholePage' class.

.parent {
    position: relative;
    z-index: 4; /*matters since it's sibling to wholePage*/
}

.child {
    position: relative;
    z-index:1; /*doesn't matter */
    background-color: white;
    padding: 5px;
}

jsFiddle: http://jsfiddle.net/ZjXMR/2/

Native way to get the mimetype:

For PHP < 5.3 use mime_content_type()
For PHP >= 5.3 use finfo_open() or mime_content_type()

Alternatives to get the MimeType are exif_imagetype and getimagesize, but these rely on having the appropriate libs installed. In addition, they will likely just return image mimetypes, instead of the whole list given in magic.mime.

While mime_content_type is available from PHP 4.3 and is part of the FileInfo extension (which is enabled by default since PHP 5.3, except for Windows platforms, where it must be enabled manually, for details see here).

If you don't want to bother about what is available on your system, just wrap all four functions into a proxy method that delegates the function call to whatever is available, e.g.

function getMimeType($filename)
{
    $mimetype = false;
    if(function_exists('finfo_open')) {
        // open with FileInfo
    } elseif(function_exists('getimagesize')) {
        // open with GD
    } elseif(function_exists('exif_imagetype')) {
       // open with EXIF
    } elseif(function_exists('mime_content_type')) {
       $mimetype = mime_content_type($filename);
    }
    return $mimetype;
}

Npm repository is currently down. See issue #2694 on npm github

EDIT:
To use a mirror in the meanwhile:

 npm set registry http://ec2-46-137-149-160.eu-west-1.compute.amazonaws.com

you can reset this later with:

 npm set registry https://registry.npmjs.org/

source

To enable passive ftp on an EC2 server, you need to configure the ports that your ftp server should use for inbound connections, then open a list of available ports for the ftp client data connections.

I'm not that familiar with linux, but the commands you posted are the steps to install the ftp server, configure the ec2 firewall rules (through the AWS API), then configure the ftp server to use the ports you allowed on the ec2 firewall.

So this step installs the ftp client (VSFTP)

> yum install vsftpd

These steps configure the ftp client

> vi /etc/vsftpd/vsftpd.conf
--    Add following lines at the end of file --
     pasv_enable=YES
     pasv_min_port=1024
     pasv_max_port=1048
     pasv_address=<Public IP of your instance> 
> /etc/init.d/vsftpd restart

but the other two steps are easier done through the amazon console under EC2 Security groups. There you need to configure the security group that is assigned to your server to allow connections on ports 20,21, and 1024-1048

tabindex is a global attribute responsible for two things:

1. it sets the order of "focusable" elements and
2. it makes elements "focusable".

In my mind the second thing is even more important than the first one. There are very few elements that are focusable by default (e.g. <a> and form controls). Developers very often add some JavaScript event handlers (like 'onclick') on not focusable elements (<div>, <span> and so on), and the way to make your interface be responsive not only to mouse events but also to keyboard events (e.g. 'onkeypress') is to make such elements focusable. Lastly, if you don't want to set the order but just make your element focusable use tabindex="0" on all such elements:

<div tabindex="0"></div>

Also, if you don't want it to be focusable via the tab key then use tabindex="-1". For example, the below link will not be focused while using tab keys to traverse.

<a href="#" tabindex="-1">Tab key cannot reach here!</a>

Reviving an old question, but I wanted to post an iteration on @adeneo's answer. That answer is completely general, but for this use case it could be more efficient (it's slow on my machine with an array of a few thousand objects). If you know the specific properties of the objects you need to compare, just compare them directly:

var sl = standardsList;
var out = [];

for (var i = 0, l = sl.length; i < l; i++) {
    var unique = true;
    for (var j = 0, k = out.length; j < k; j++) {
        if ((sl[i].Grade === out[j].Grade) && (sl[i].Domain === out[j].Domain)) {
            unique = false;
        }
    }
    if (unique) {
        out.push(sl[i]);
    }
}

console.log(sl.length); // 10
console.log(out.length); // 5

The id is supposed to be unique, use the attribute "name" and "getelementsbyname" instead, and you'll have your array.

On top of @unutbu answer, you could coerce pandas numpy object array to native (float64) type, something along the line

import pandas as pd
pd.to_numeric(df['tester'], errors='coerce')

Specify errors='coerce' to force strings that can't be parsed to a numeric value to become NaN. Column type would be dtype: float64, and then isnan check should work

Necroposting, but might be useful for others.

There's always the official page: [OpenSSL.Wiki]: Binaries which contains useful URLs.

I also want to mention: [GitHub]: CristiFati/Prebuilt-Binaries - Prebuilt-Binaries/OpenSSL

• v1.0.2u is built with OpenSSL-FIPS 2.0.16
• Artefacts are .zips that should be unpacked in "C:\Program Files" (please take a look at the Readme.md file, and also at the one at the repository root)

Date and time as String to Long (millis):

String dateTimeString = "2020-12-12T14:34:18.000Z";

DateTimeFormatter formatter = DateTimeFormatter
                .ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.ENGLISH);

LocalDateTime localDateTime = LocalDateTime
        .parse(dateTimeString, formatter);

Long dateTimeMillis = localDateTime
        .atZone(ZoneId.systemDefault())
        .toInstant()
        .toEpochMilli();

a = [1, 2, 3]
p [a, (2...a.size+2).to_a].transpose

This worked for me:

https://blog.dotkam.com/2007/04/10/mysql-reset-lost-root-password/

Step 1: Stop MySQL daemon if it is currently running

  ps -ef | grep mysql      - checks if mysql/mysqld is one of the running processes.

  pkill mysqld             - kills the daemon, if it is running.

Step 2: Run MySQL safe daemon with skipping grant tables

  mysqld_safe --skip-grant-tables &

  mysql -u root mysql

Step 3: Login to MySQL as root with no password

  mysql -u root mysql

Step 4: Run UPDATE query to reset the root password

  UPDATE user SET password=PASSWORD("value=42") WHERE user="root";
  FLUSH PRIVILEGES;

In MySQL 5.7, the 'password' field was removed, now the field name is 'authentication_string':

  UPDATE user SET authentication_string=PASSWORD("42") WHERE 
  user="root";
  FLUSH PRIVILEGES;

Step 5: Stop MySQL safe daemon

Step 6: Start MySQL daemon

DBQuery.shellBatchSize = 300

will do.

MongoDB Docs - Configure the mongo Shell - Change the mongo Shell Batch Size

This is what I've used (Swift 5)...

    extension Array where Element:Equatable
    {
        @discardableResult
        mutating func removeFirst(_ item:Any ) -> Any? {
            for index in 0..<self.count {
                if(item as? Element == self[index]) {
                    return self.remove(at: index)
                }
            }
            return nil
        }
        @discardableResult
        mutating func removeLast(_ item:Any ) -> Any? {
            var index = self.count-1
            while index >= 0 {
                if(item as? Element == self[index]) {
                    return self.remove(at: index)
                }
                index -= 1
            }
            return nil
        }
    }

    var arrContacts:[String] = ["A","B","D","C","B","D"]
    var contacts: [Any] = ["B","D"]
    print(arrContacts)
    var index = 1
    arrContacts.removeFirst(contacts[index])
    print(arrContacts)
    index = 0
    arrContacts.removeLast(contacts[index])
    print(arrContacts)

Results:

   ["A", "B", "D", "C", "B", "D"]
   ["A", "B", "C", "B", "D"]
   ["A", "B", "C", "D"]

Important: The array from which you remove items must contain Equatable elements (such as objects, strings, number, etc.)

The query should be:

(&(objectCategory=user)(memberOf=CN=Distribution Groups,OU=Mybusiness,DC=mydomain.local,DC=com))

You missed & and ()

The .net framework supports JSON through JavaScriptSerializer. Here is a good example to get you started.

using System.Collections.Generic;
using System.Web.Script.Serialization;

namespace GoogleTranslator.GoogleJSON
{
    public class FooTest
    {
        public void Test()
        {
            const string json = @"{
              ""DisplayFieldName"" : ""ObjectName"", 
              ""FieldAliases"" : {
                ""ObjectName"" : ""ObjectName"", 
                ""ObjectType"" : ""ObjectType""
              }, 
              ""PositionType"" : ""Point"", 
              ""Reference"" : {
                ""Id"" : 1111
              }, 
              ""Objects"" : [
                {
                  ""Attributes"" : {
                    ""ObjectName"" : ""test name"", 
                    ""ObjectType"" : ""test type""
                  }, 
                  ""Position"" : 
                  {
                    ""X"" : 5, 
                    ""Y"" : 7
                  }
                }
              ]
            }";

            var ser = new JavaScriptSerializer();
            ser.Deserialize<Foo>(json);
        }
    }

    public class Foo
    {
        public Foo() { Objects = new List<SubObject>(); }
        public string DisplayFieldName { get; set; }
        public NameTypePair FieldAliases { get; set; }
        public PositionType PositionType { get; set; }
        public Ref Reference { get; set; }
        public List<SubObject> Objects { get; set; }
    }

    public class NameTypePair
    {
        public string ObjectName { get; set; }
        public string ObjectType { get; set; }
    }

    public enum PositionType { None, Point }
    public class Ref
    {
        public int Id { get; set; }
    }

    public class SubObject
    {
        public NameTypePair Attributes { get; set; }
        public Position Position { get; set; }
    }

    public class Position
    {
        public int X { get; set; }
        public int Y { get; set; }
    }
}

I was facing this issue after i updated to Android-Studio 3.6 the only way that worked for me was downgrading project build.gradle setting by changing

from

dependencies {
    classpath 'com.android.tools.build:gradle:3.6.0'
}

to

dependencies {
    classpath 'com.android.tools.build:gradle:3.3.0'
}

just in case you are using a remote access and want to dump all database data, you can use:

pg_dump -a -h your_host -U your_user -W -Fc your_database > DATA.dump

it will create a dump with all database data and use

pg_restore -a -h your_host -U your_user -W -Fc your_database < DATA.dump

to insert the same data in your data base considering you have the same structure

Use sort.

sort ... -k 2,2 ...

Enyo's tutorial is excellent.

I found that the sample script in the tutorial worked well for a button embedded in the dropzone (i.e., the form element). If you wish to have the button outside the form element, I was able to accomplish it using a click event:

First, the HTML:

<form id="my-awesome-dropzone" action="/upload" class="dropzone">  
    <div class="dropzone-previews"></div>
    <div class="fallback"> <!-- this is the fallback if JS isn't working -->
        <input name="file" type="file" multiple />
    </div>

</form>
<button type="submit" id="submit-all" class="btn btn-primary btn-xs">Upload the file</button>

Then, the script tag....

Dropzone.options.myAwesomeDropzone = { // The camelized version of the ID of the form element

    // The configuration we've talked about above
    autoProcessQueue: false,
    uploadMultiple: true,
    parallelUploads: 25,
    maxFiles: 25,

    // The setting up of the dropzone
    init: function() {
        var myDropzone = this;

        // Here's the change from enyo's tutorial...

        $("#submit-all").click(function (e) {
            e.preventDefault();
            e.stopPropagation();
            myDropzone.processQueue();
        }); 
    }
}

Up to C#5 (-VS2013) you have to call a function/method for it. Either a "normal" function such as String.Format or an overload of the + operator.

string str = "Hello " + name; // This calls an overload of operator +.

In C#6 (VS2015) string interpolation has been introduced (as described by other answers).

Prefix the variable name with env:

$env:path

For example, if you want to print the value of environment value "MINISHIFT_USERNAME", then command will be:

$env:MINISHIFT_USERNAME

You can also enumerate all variables via the env drive:

Get-ChildItem env:

Yes, you should use docstrings to make your classes and functions more friendly to other programmers:

More: http://www.python.org/dev/peps/pep-0257/#what-is-a-docstring

Some editors allow you to see docstrings while typing, so it really makes work easier.

Save the current product id before entering your loop:

$current_product = $product->id;

Then in your loop for your sidebar, use $product->id again to compare:

 <li><a <? if ($product->id == $current_product) { echo "class='on'"; }?> href="<?=get_permalink();?>"><?=the_title();?></a></li>

JNZ is short for "Jump if not zero (ZF = 0)", and NOT "Jump if the ZF is set".

If it's any easier to remember, consider that JNZ and JNE (jump if not equal) are equivalent. Therefore, when you're doing cmp al, 47 and the content of AL is equal to 47, the ZF is set, ergo the jump (if Not Equal - JNE) should not be taken.

The best option is create a directive and wrap the slider features there. The secret is use $timeout, the jquery code will be called only when DOM is ready.

angular.module('app')
.directive('my-slider', 
    ['$timeout', function($timeout) {
        return {
            restrict:'E',
            scope: true,
            template: '<div id="{{ id }}"></div>',
            link: function($scope) {
                $scope.id = String(Math.random()).substr(2, 8);

                $timeout(function() {
                    angular.element('#'+$scope.id).slider();                    
                });
            }
        };
    }]
);

You can take advantage of fschange. It’s a Linux filesystem change notification. The source code is downloadable from the above link, you can compile it yourself. fschange can be used to keep track of file changes by reading data from a proc file (/proc/fschange). When data is written to a file, fschange reports the exact interval that has been modified instead of just saying that the file has been changed. If you are looking for the more advanced solution, I would suggest checking Resilio Connect. It is cross-platform, provides extended options for use and monitoring. Since it’s BitTorrent-based, it is faster than any other existing sync tool. It was written on their behalf.

You could also use:

<body onload="focusOnInput()">
    <form name="passwordForm" action="verify.php" method="post">
        <input name="passwordInput" type="password" />
    </form>
</body>

And then in your JavaScript:

function focusOnInput() {
    document.forms["passwordForm"]["passwordInput"].focus();
}

Python's power operator is ** and Euler's number is math.e, so:

 from math import e
 x.append(1-e**(-value1**2/2*value2**2))

The only built-in way to "downgrade" a database from one SQL Server version to a lower one is the hard way: Script out the whole database, schema and data, then execute the script on the target server.

This is do-able but tends to be brutal.

See Joel's post on the Law of Leaky Abstractions

JoelOnsoftware

Basically, abstracting gives you the freedom of thinking of higher level concepts. A non-programming analogy is that most of us do not know where our food comes from, or how it is produced, but the fact that we (usually) don't have to worry about it frees us up to do other things, like programming.

As for information hiding, I agree with jamting.

Are you looking for the syntax to open them:

Dim wkbk As Workbook

Set wkbk = Workbooks.Open("C:\MyDirectory\mysheet.xlsx")

Then, you can use wkbk.Sheets(1).Range("3:3") (or whatever you need)

Same thing, Just start the table name with # or ##:

CREATE TABLE #TemporaryTable          -- Local temporary table - starts with single #
(
    Col1 int,
    Col2 varchar(10)
    ....
);

CREATE TABLE ##GlobalTemporaryTable   -- Global temporary table - note it starts with ##.
(
    Col1 int,
    Col2 varchar(10)
    ....
);

Temporary table names start with # or ## - The first is a local temporary table and the last is a global temporary table.

Here is one of many articles describing the differences between them.

Option 1 - Easier & Persistent

Running Visual Studio Code as Administrator should do the trick.

If you're on Windows you can:

1. Right click the shortcut or app/exe
2. Go to properties
3. Compatibility tab
4. Check "Run this program as an administrator"

Make sure you have all other instances of VS Code closed and then try to run as Administrator. The electron framework likes to stall processes when closing them so it's best to check your task manager and kill the remaining processes.

• https://visualstudio.uservoice.com/forums/293070-visual-studio-code/suggestions/8915236-visual-code-w-terminal-integrated-and-super-admin
• https://github.com/Microsoft/vscode/issues/7407

Option 2 - More like Sudo

If for some weird reason this is not running your commands as an Administrator you can try the runas command. Microsoft: runas command

• runas /user:Administrator myCommand
• runas "/user:First Last" "my command"

• Just don't forget to put double quotes around anything that has a space in it.
• Also it's quite possible that you have never set the password on the Administrator account, as it will ask you for the password when trying to run the command. You can always use an account without the username of Administrator if it has administrator access rights/permissions.

I'm going to assume you want to build a the regex dynamically to contain other words than part1 and part2, and that you want order not to matter. If so you can use something like this:

((^|, )(part1|part2|part3))+$

Positive matches:

part1
part2, part1
part1, part2, part3

Negative matches:

part1,           //with and without trailing spaces.
part3, part2, 
otherpart1

The range(n) in python returns from 0 to n-1. Respectively, the range(1,n) from 1 to n-1. So, if you want to omit the first value and get also the last value (n) you can do it very simply using the following code.

for i in range(1, n + 1):
        print(i) #prints from 1 to n

If []byte is ASCII byte numbers then first convert the []byte to string and use the strconv package Atoi method which convert string to int.

package main
import (
    "fmt"
    "strconv"
)

func main() {
    byteNumber := []byte("14")
    byteToInt, _ := strconv.Atoi(string(byteNumber))
    fmt.Println(byteToInt)
}

go playground - https://play.golang.org/p/gEzxva8-BGP

If you follow these instructions, your problem would be solved.

If you’re on a Mac or Linux machine, type:

eval "$(ssh-agent -s)"

If you’re on a Windows machine, type:

ssh-agent -s

Try to use:

location.reload(true);

When this method receives a true value as argument, it will cause the page to always be reloaded from the server. If it is false or not specified, the browser may reload the page from its cache.

More info:

• The location object

String path = "C:\\Documents and Settings\\someDir";
path = path.replaceAll("\\\\", "/");

In Windows you should use four backslash but not two.