Suppose you have following lines of code

MyUrl = "www.google.com" #Your url goes here
urllib.urlretrieve(MyUrl)

If you are receiving following error message

AttributeError: module 'urllib' has no attribute 'urlretrieve'

Then you should try following code to fix the issue:

import urllib.request
MyUrl = "www.google.com" #Your url goes here
urllib.request.urlretrieve(MyUrl)

Using the struct module, you can take the wave frames (which are in 2's complementary binary between -32768 and 32767 (i.e. 0x8000 and 0x7FFF). This reads a MONO, 16-BIT, WAVE file. I found this webpage quite useful in formulating this:

import wave, struct

wavefile = wave.open('sine.wav', 'r')

length = wavefile.getnframes()
for i in range(0, length):
    wavedata = wavefile.readframes(1)
    data = struct.unpack("<h", wavedata)
    print(int(data[0]))

This snippet reads 1 frame. To read more than one frame (e.g., 13), use

wavedata = wavefile.readframes(13)
data = struct.unpack("<13h", wavedata)

I looked for a C/C++ API for Google Voice for quite a while and never found anything close (the closest was a C# API). Since I really needed it, I decided to just write one myself:

http://github.com/mastermind202/GoogleVoice

I hope others find it useful. Feedback and suggestions welcome.

If you don't want to use SMO, for example because you need to be cross-platform, you can also use the ScriptSplitter class from SubText.

Here's the implementation in C# & VB.NET

Usage:

    string strSQL = @"
SELECT * FROM INFORMATION_SCHEMA.columns
GO
SELECT * FROM INFORMATION_SCHEMA.views
";

    foreach(string Script in new Subtext.Scripting.ScriptSplitter(strSQL ))
    {
        Console.WriteLine(Script);
    }

If you have problems with multiline c-style comments, remove the comments with regex:

static string RemoveCstyleComments(string strInput)
{
    string strPattern = @"/[*][\w\d\s]+[*]/";
    //strPattern = @"/\*.*?\*/"; // Doesn't work
    //strPattern = "/\\*.*?\\*/"; // Doesn't work
    //strPattern = @"/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/ "; // Doesn't work
    //strPattern = @"/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/ "; // Doesn't work

    // http://stackoverflow.com/questions/462843/improving-fixing-a-regex-for-c-style-block-comments
    strPattern = @"/\*(?>(?:(?>[^*]+)|\*(?!/))*)\*/";  // Works !

    string strOutput = System.Text.RegularExpressions.Regex.Replace(strInput, strPattern, string.Empty, System.Text.RegularExpressions.RegexOptions.Multiline);
    Console.WriteLine(strOutput);
    return strOutput;
} // End Function RemoveCstyleComments

Removing single-line comments is here:

https://stackoverflow.com/questions/9842991/regex-to-remove-single-line-sql-comments

> selects all direct descendants/children

A space selector will select all deep descendants whereas a greater than > selector will only select all immediate descendants. See fiddle for example.

div { border: 1px solid black; margin-bottom: 10px; }_x000D_
.a b { color: red; } /* every John is red */_x000D_
.b > b { color: blue; } /* Only John 3 and John 4 are blue */

<div class="a">_x000D_
  <p><b>John 1</b></p>_x000D_
  <p><b>John 2</b></p>_x000D_
  <b>John 3</b>_x000D_
  <b>John 4</b>_x000D_
</div>_x000D_
_x000D_
<div class="b">_x000D_
  <p><b>John 1</b></p>_x000D_
  <p><b>John 2</b></p>_x000D_
  <b>John 3</b>_x000D_
  <b>John 4</b>_x000D_
</div>

I added the following to my htaccess file, which did the trick:

BrowserMatch MSIE ie
Header set X-UA-Compatible "IE=Edge,chrome=1" env=ie

You need more than a timedelta to tell how many years have passed; you also need to know the beginning (or ending) date. (It's a leap year thing.)

Your best bet is to use the dateutil.relativedelta object, but that's a 3rd party module. If you want to know the datetime that was n years from some date (defaulting to right now), you can do the following::

from dateutil.relativedelta import relativedelta

def yearsago(years, from_date=None):
    if from_date is None:
        from_date = datetime.now()
    return from_date - relativedelta(years=years)

If you'd rather stick with the standard library, the answer is a little more complex::

from datetime import datetime
def yearsago(years, from_date=None):
    if from_date is None:
        from_date = datetime.now()
    try:
        return from_date.replace(year=from_date.year - years)
    except ValueError:
        # Must be 2/29!
        assert from_date.month == 2 and from_date.day == 29 # can be removed
        return from_date.replace(month=2, day=28,
                                 year=from_date.year-years)

If it's 2/29, and 18 years ago there was no 2/29, this function will return 2/28. If you'd rather return 3/1, just change the last return statement to read::

    return from_date.replace(month=3, day=1,
                             year=from_date.year-years)

Your question originally said you wanted to know how many years it's been since some date. Assuming you want an integer number of years, you can guess based on 365.25 days per year and then check using either of the yearsago functions defined above::

def num_years(begin, end=None):
    if end is None:
        end = datetime.now()
    num_years = int((end - begin).days / 365.25)
    if begin > yearsago(num_years, end):
        return num_years - 1
    else:
        return num_years

The enum based singleton

a modern look at an old problem

This approach implements the singleton by taking advantage of Java's guarantee that any enum value is instantiated only once in a Java program and enum provides implicit support for thread safety. Since Java enum values are globally accessible, so it can be used as the singleton.

public enum Singleton {
    SINGLETON; 
    public void method() { }
}

How does this work? Well, the line two of the code may be considered to something like this:

public final static Singleton SINGLETON = new Singleton(); 

And we get good old early initialized singleton.

Remember that since this is an enum you can always access to instance via Singleton.SINGLETON as well:

Singleton s = Singleton.SINGLETON;

• To prevent creating another instances of singleton during deserialization use enum based singleton because serialization of enum is taken care by JVM. Enum serialization and deserialization work differently than for normal java objects. The only thing that gets serialized is the name of the enum value. During the deserialization process the enum valueOf method is used with the deserialized name to get the desired instance.
• Enum based singleton allows to protect itself from reflection attack. The enum type actually extends the java Enum class. The reason that reflection cannot be used to instantiate objects of enum type is because the java specification disallows and that rule is coded in the implementation of the newInstance method of the Constructor class, which is usually used for creating objects via reflection:

if ((clazz.getModifiers() & Modifier.ENUM) != 0)
    throw new IllegalArgumentException("Cannot reflectively create enum objects");

• Enum is not supposed to be cloned because there must be exactly one instance of each value.
• The most laconic code among all singleton realization.

• The enum based singleton does not allow lazy initialization.
• If you changed your design and wanted to convert your singleton to multiton, enum would not allow this. The multiton pattern is used for the controlled creation of multiple instances, which it manages through the use of a map. Rather than having a single instance per application (e.g. the java.lang.Runtime) the multiton pattern instead ensures a single instance per key.
• Enum appears only in Java 5 so you can not use it in prior version.

There are several realization of singleton pattern each one with advantages and disadvantages.

• Eager loading singleton
• Double-checked locking singleton
• Initialization-on-demand holder idiom
• The enum based singleton

Detailed description each of them is too verbose so I just put a link to a good article - All you want to know about Singleton

That syntax is a way of accessing a class member. PHP does not have pointers, but it does have references.

The syntax that you're quoting is basically the same as accessing a member from a pointer to a class in C++ (whereas dot notation is used when it isn't a pointer.)

Another case is http redirection. If your page redirects http requests to https, then may be your partial view tries to redirect by itself.

It causes same problem again. For this problem, you can reorganize your .net error pages or iis error pages configuration.

Just make sure you are redirecting requests to right error or not found page and make sure this error page contains non problematic partial. If your page supports only https, do not forward requests to error page without using https, if error page contains partial, this partials tries to redirect seperately from requested url, it causes problem.

After committing changes to your branch, checkout master and pull it to get its latest changes from the repo:

git checkout master
git pull origin master

Then checkout your branch and rebase your changes on master:

git checkout RB
git rebase master

...or last two commands in one line:

git rebase master RB

When trying to push back to origin/RB, you'll probably get an error; if you're the only one working on RB, you can force push:

git push --force origin RB

...or as follows if you have git configured appropriately:

git push -f

Select the project. Properties->Configuration Properties->Linker->System.

My problem solved by setting below option. Under System: SubSystem = Console(/SUBSYSTEM:CONSOLE)

Or you can choose the last option as "inherite from the parent".

As mentioned by Nacho.L PBKDF2WithHmacSHA1 derivation is used as it is more secured.

import android.util.Base64;

import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;

public class AESEncyption {

    private static final int pswdIterations = 10;
    private static final int keySize = 128;
    private static final String cypherInstance = "AES/CBC/PKCS5Padding";
    private static final String secretKeyInstance = "PBKDF2WithHmacSHA1";
    private static final String plainText = "sampleText";
    private static final String AESSalt = "exampleSalt";
    private static final String initializationVector = "8119745113154120";

    public static String encrypt(String textToEncrypt) throws Exception {

        SecretKeySpec skeySpec = new SecretKeySpec(getRaw(plainText, AESSalt), "AES");
        Cipher cipher = Cipher.getInstance(cypherInstance);
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(initializationVector.getBytes()));
        byte[] encrypted = cipher.doFinal(textToEncrypt.getBytes());
        return Base64.encodeToString(encrypted, Base64.DEFAULT);
    }

    public static String decrypt(String textToDecrypt) throws Exception {

        byte[] encryted_bytes = Base64.decode(textToDecrypt, Base64.DEFAULT);
        SecretKeySpec skeySpec = new SecretKeySpec(getRaw(plainText, AESSalt), "AES");
        Cipher cipher = Cipher.getInstance(cypherInstance);
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, new IvParameterSpec(initializationVector.getBytes()));
        byte[] decrypted = cipher.doFinal(encryted_bytes);
        return new String(decrypted, "UTF-8");
    }

    private static byte[] getRaw(String plainText, String salt) {
        try {
            SecretKeyFactory factory = SecretKeyFactory.getInstance(secretKeyInstance);
            KeySpec spec = new PBEKeySpec(plainText.toCharArray(), salt.getBytes(), pswdIterations, keySize);
            return factory.generateSecret(spec).getEncoded();
        } catch (InvalidKeySpecException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return new byte[0];
    }

}

Try setting the system default encoding as utf-8 at the start of the script, so that all strings are encoded using that.

Example -

import sys
reload(sys)
sys.setdefaultencoding('utf-8')

The above should set the default encoding as utf-8 .

If you don't want to store this anywhere, but just view the object for debugging purposes.

console.log(JSON.stringify(object, null, "  "));

You can change the third parameter to adjust the indentation.

Pretty sure this solves what you're looking for:

HTML:

<table>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
</table>

Javascript (using jQuery):

$(document).ready(function(){
    $('.editbtn').click(function(){
        $(this).html($(this).html() == 'edit' ? 'modify' : 'edit');
    });
});

Edit:

Apparently I should have looked at your sample code first ;)

You need to change (at least) the ID attribute of each element. The ID is the unique identifier for each element on the page, meaning that if you have multiple items with the same ID, you'll get conflicts.

By using classes, you can apply the same logic to multiple elements without any conflicts.

JSFiddle sample

This could happen due to the change in java version of the project.Say for example if the project is build in java 8 and if we change the java version to 11 then there can be such issue. In intellij idea go to the File->Project Structure then change the Project SDK Version.

Request.Url.Host

You need to add this line into your settings.xml (or uncomment if it's already there).

<localRepository>C:\Users\me\.m2\repo</localRepository>

Also it's possible to run your commands with mvn clean install -gs C:\Users\me\.m2\settings.xml - this parameter will force maven to use different settings.xml then the default one (which is in $HOME/.m2/settings.xml)

All you have to do is read the code on getbootstrap.com:

Codepen

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
_x000D_
<nav class="navbar navbar-inverse navbar-static-top" role="navigation">_x000D_
  <div class="container">_x000D_
    <div class="navbar-header">_x000D_
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">_x000D_
                    <span class="sr-only">Toggle navigation</span>_x000D_
                    <span class="icon-bar"></span>_x000D_
                    <span class="icon-bar"></span>_x000D_
                    <span class="icon-bar"></span>_x000D_
                </button>_x000D_
    </div>_x000D_
_x000D_
    <!-- Collect the nav links, forms, and other content for toggling -->_x000D_
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">_x000D_
      <ul class="nav navbar-nav">_x000D_
        <li><a href="index.php">Home</a></li>_x000D_
        <li><a href="about.php">About</a></li>_x000D_
        <li><a href="#portfolio">Portfolio</a></li>_x000D_
        <li><a href="#">Blog</a></li>_x000D_
        <li><a href="contact.php">Contact</a></li>_x000D_
      </ul>_x000D_
    </div>_x000D_
  </div>_x000D_
</nav>

You can try this runnable code-

$(window).load(function()_x000D_
{_x000D_
    $('#myModal').modal('show');_x000D_
});

<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>_x000D_
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>_x000D_
_x000D_
<div class="container">_x000D_
  <!-- Trigger the modal with a button -->_x000D_
  <button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#myModal">Open Modal</button>_x000D_
_x000D_
  <!-- Modal -->_x000D_
  <div class="modal fade" id="myModal" role="dialog">_x000D_
    <div class="modal-dialog">_x000D_
    _x000D_
      <!-- Modal content-->_x000D_
      <div class="modal-content">_x000D_
        <div class="modal-header">_x000D_
          <button type="button" class="close" data-dismiss="modal">&times;</button>_x000D_
          <h4 class="modal-title">Modal Header</h4>_x000D_
        </div>_x000D_
        <div class="modal-body">_x000D_
          <p>Some text in the modal.</p>_x000D_
        </div>_x000D_
        <div class="modal-footer">_x000D_
          <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>_x000D_
        </div>_x000D_
      </div>_x000D_
      _x000D_
    </div>_x000D_
  </div>_x000D_
  _x000D_
</div>

More can be found here.

Think u have your complete answer.

simply use

final String WELCOME_MESSAGE = "Hello, welcome to the server";

the main part of this instruction is the 'final' keyword.

You should specify formGroupName for nested controls

<div class="panel panel-default" formGroupName="address"> <== add this
    <div class="panel-heading">Contact Info</div>

Plunker Example

In addition to all the other good answers here, let me point out another reason to not use shift when you mean divide or multiply. I have never once seen someone introduce a bug by forgetting the relative precedence of multiplication and addition. I have seen bugs introduced when maintenance programmers forgot that "multiplying" via a shift is logically a multiplication but not syntactically of the same precedence as multiplication. x * 2 + z and x << 1 + z are very different!

If you're working on numbers then use arithmetic operators like + - * / %. If you're working on arrays of bits, use bit twiddling operators like & ^ | >> . Don't mix them; an expression that has both bit twiddling and arithmetic is a bug waiting to happen.

Val - values are typed storage constants. Once created its value cant be re-assigned. a new value can be defined with keyword val.

eg. val x: Int = 5

Here type is optional as scala can infer it from the assigned value.

Var - variables are typed storage units which can be assigned values again as long as memory space is reserved.

eg. var x: Int = 5

Data stored in both the storage units are automatically de-allocated by JVM once these are no longer needed.

In scala values are preferred over variables due to stability these brings to the code particularly in concurrent and multithreaded code.

In addition to @Cristian's answer above, I had to do two more steps to get it working correctly. I will sum all of it here:

1. Change the package name manually in the manifest file.
2. Click on your R.java class and the press F6 (Refactor->Move...). It will allow you to move the class to another package, and all references to that class will be updated.
3. Change manually the application Id in the build.gradle file : android / defaultconfig / application ID [source].
4. Create a new package with the desired name by right clicking on the java folder -> new -> package and select and drag all your classes to the new package. Android Studio will refactor the package name everywhere [source].

In general, no. int(wchar_t(255)) == int(char(255)) of course, but that just means they have the same int value. They may not represent the same characters.

You would see such a discrepancy in the majority of Windows PCs, even. For instance, on Windows Code page 1250, char(0xFF) is the same character as wchar_t(0x02D9) (dot above), not wchar_t(0x00FF) (small y with diaeresis).

Note that it does not even hold for the ASCII range, as C++ doesn't even require ASCII. On IBM systems in particular you may see that 'A' != 65

Other answers are outdated, or incomplete, or simply don't work.

You need to also specify an X-11 server on the host machine to handle the launch of GUId programs. If the client is a Windows machine install Xming. If the client is a Linux machine install XQuartz.

Now suppose this is Windows connecting to Linux. In order to be able to launch X11 programs as well over putty do the following:

- Launch XMing on Windows client
- Launch Putty
    * Fill in basic options as you know in session category
    * Connection -> SSH -> X11
        -> Enable X11 forwarding
        -> X display location = :0.0
        -> MIT-Magic-Cookie-1
        -> X authority file for local display = point to the Xming.exe executable

Of course the ssh server should have permitted Desktop Sharing "Allow other user to view your desktop".

MobaXterm and other complete remote desktop programs work too.

Definitely the second one. In the first one, you use a constant empty List<?> and then convert it to a File[], which requires to create an empty File[0] array. And that is what you do in the second one in one single step.

You need to call $compile on the HTML string before inserting it into the DOM so that angular gets a chance to perform the binding.

In your fiddle, it would look something like this.

$("#dynamicContent").html(
  $compile(
    "<button ng-click='count = count + 1' ng-init='count=0'>Increment</button><span>count: {{count}} </span>"
  )(scope)
);

Obviously, $compile must be injected into your controller for this to work.

Read more in the $compile documentation.

My 2cents, in a single system user you can set the port also on /etc/ssh/ssh_config then rsync will use the port set here

mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(currentPlace,15)); This is will not have animation effect.

Even though ' reads nicer than ' and it's a shame not to use it, as a fail-safe, use '.

' is a valid HTML 5 entity, however it is not a valid HTML 4 entity.

Unless <!DOCTYPE html> is at the top of your HTML document, use '

UPDATE: https://requests.readthedocs.io/en/master/user/advanced/#timeouts

In new version of requests:

If you specify a single value for the timeout, like this:

r = requests.get('https://github.com', timeout=5)

The timeout value will be applied to both the connect and the read timeouts. Specify a tuple if you would like to set the values separately:

r = requests.get('https://github.com', timeout=(3.05, 27))

If the remote server is very slow, you can tell Requests to wait forever for a response, by passing None as a timeout value and then retrieving a cup of coffee.

r = requests.get('https://github.com', timeout=None)

My old (probably outdated) answer (which was posted long time ago):

There are other ways to overcome this problem:

1. Use the TimeoutSauce internal class

From: https://github.com/kennethreitz/requests/issues/1928#issuecomment-35811896

import requests from requests.adapters import TimeoutSauce

class MyTimeout(TimeoutSauce):
    def __init__(self, *args, **kwargs):
        connect = kwargs.get('connect', 5)
        read = kwargs.get('read', connect)
        super(MyTimeout, self).__init__(connect=connect, read=read)

requests.adapters.TimeoutSauce = MyTimeout

This code should cause us to set the read timeout as equal to the connect timeout, which is the timeout value you pass on your Session.get() call. (Note that I haven't actually tested this code, so it may need some quick debugging, I just wrote it straight into the GitHub window.)

2. Use a fork of requests from kevinburke: https://github.com/kevinburke/requests/tree/connect-timeout

From its documentation: https://github.com/kevinburke/requests/blob/connect-timeout/docs/user/advanced.rst

If you specify a single value for the timeout, like this:

r = requests.get('https://github.com', timeout=5)

The timeout value will be applied to both the connect and the read timeouts. Specify a tuple if you would like to set the values separately:

r = requests.get('https://github.com', timeout=(3.05, 27))

kevinburke has requested it to be merged into the main requests project, but it hasn't been accepted yet.

The difference is subtle.

In JavaScript an undefined variable is a variable that as never been declared, or never assigned a value. Let's say you declare var a; for instance, then a will be undefined, because it was never assigned any value.

But if you then assign a = null; then a will now be null. In JavaScript null is an object (try typeof null in a JavaScript console if you don't believe me), which means that null is a value (in fact even undefined is a value).

Example:

var a;
typeof a;     # => "undefined"

a = null;
typeof null;  # => "object"

This can prove useful in function arguments. You may want to have a default value, but consider null to be acceptable. In which case you may do:

function doSomething(first, second, optional) {
    if (typeof optional === "undefined") {
        optional = "three";
    }
    // do something
}

If you omit the optional parameter doSomething(1, 2) thenoptional will be the "three" string but if you pass doSomething(1, 2, null) then optional will be null.

As for the equal == and strictly equal === comparators, the first one is weakly type, while strictly equal also checks for the type of values. That means that 0 == "0" will return true; while 0 === "0" will return false, because a number is not a string.

You may use those operators to check between undefined an null. For example:

null === null            # => true
undefined === undefined  # => true
undefined === null       # => false
undefined == null        # => true

The last case is interesting, because it allows you to check if a variable is either undefined or null and nothing else:

function test(val) {
    return val == null;
}
test(null);       # => true
test(undefined);  # => true

Most answers given here are false. It is perfectly legal to have an underscore in a domain name. Let me quote the standard, RFC 2181, section 11, "Name syntax":

The DNS itself places only one restriction on the particular labels that can be used to identify resource records. That one restriction relates to the length of the label and the full name. [...] Implementations of the DNS protocols must not place any restrictions on the labels that can be used. In particular, DNS servers must not refuse to serve a zone because it contains labels that might not be acceptable to some DNS client programs.

See also the original DNS specification, RFC 1034, section 3.5 "Preferred name syntax" but read it carefully.

Domains with underscores are very common in the wild. Check _jabber._tcp.gmail.com or _sip._udp.apnic.net.

Other RFC mentioned here deal with different things. The original question was for domain names. If the question is for host names (or for URLs, which include a host name), then this is different, the relevant standard is RFC 1123, section 2.1 "Host Names and Numbers" which limits host names to letters-digits-hyphen.

I created a simple Objective C wrapper around the good old C array to be used more conveniently: https://gist.github.com/4705733

It's a very simple:

NUMOFLINES=$(cat $JAVA_TAGS_FILE | wc -l )

or

NUMOFLINES=$(wc -l $JAVA_TAGS_FILE | awk '{print $1}')

apt-get install python2.7 will work on debian-like linuxes. The python website describes a whole bunch of other ways to get Python.

From the git-branch manual page:

 git branch --contains <commit>

Only list branches which contain the specified commit (HEAD if not specified). Implies --list.

 git branch -r --contains <commit>

Lists remote tracking branches as well (as mentioned in user3941992's answer below) that is "local branches that have a direct relationship to a remote branch".

As noted by Carl Walsh, this applies only to the default refspec

fetch = +refs/heads/*:refs/remotes/origin/*

If you need to include other ref namespace (pull request, Gerrit, ...), you need to add that new refspec, and fetch again:

git config --add remote.origin.fetch "+refs/pull/*/head:refs/remotes/origin/pr/*"
git fetch
git branch -r --contains <commit>

See also this git ready article.

The --contains tag will figure out if a certain commit has been brought in yet into your branch. Perhaps you’ve got a commit SHA from a patch you thought you had applied, or you just want to check if commit for your favorite open source project that reduces memory usage by 75% is in yet.

$ git log -1 tests
commit d590f2ac0635ec0053c4a7377bd929943d475297
Author: Nick Quaranto <[email protected]>
Date:   Wed Apr 1 20:38:59 2009 -0400

    Green all around, finally.

$ git branch --contains d590f2
  tests
* master

Note: if the commit is on a remote tracking branch, add the -a option.
(as MichielB comments below)

git branch -a --contains <commit>

MatrixFrog comments that it only shows which branches contain that exact commit.
If you want to know which branches contain an "equivalent" commit (i.e. which branches have cherry-picked that commit) that's git cherry:

Because git cherry compares the changeset rather than the commit id (sha1), you can use git cherry to find out if a commit you made locally has been applied <upstream> under a different commit id.
For example, this will happen if you’re feeding patches <upstream> via email rather than pushing or pulling commits directly.

           __*__*__*__*__> <upstream>
          /
fork-point
          \__+__+__-__+__+__-__+__> <head>

(Here, the commits marked '-' wouldn't show up with git cherry, meaning they are already present in <upstream>.)

WordNet database might be helpful. I once worked on a Firefox add-on which deals with words and all kinds of simple to complicated associations between them and stuff. Looks like WordNet will be very much useful to you.

Here it is in MySQL format. And this one (web-archived link) uses Wordnet v3.0 data, rather than the older Wordnet 2.0 data.

1. In a B tree search keys and data are stored in internal or leaf nodes. But in a B+-tree data is stored only in leaf nodes.
2. Full scan of a B+ tree is very easy because all data are found in leaf nodes. Full scan of a B tree requires a full traversal.
3. In a B tree, data may be found in leaf nodes or internal nodes. Deletion of internal nodes is very complicated. In a B+ tree, data is only found in leaf nodes. Deletion of leaf nodes is easy.
4. Insertion in B tree is more complicated than B+ tree.
5. B+ trees store redundant search keys but B tree has no redundant value.
6. In a B+ tree, leaf node data is ordered as a sequential linked list but in a B tree the leaf node cannot be stored using a linked list. Many database systems' implementations prefer the structural simplicity of a B+ tree.

You need to go into the developer console and set

http://localhost:8080/WEBAPP/youtube-callback.html

as your callback URL.

This video is slightly outdated, as it shows the older Developer Console instead of the new one, however, the concepts should still apply. You need to find your project in the developer console and register a callback URL.

Search (Ctrl+F) your harddrive(s) for: SDK Manager.exe or adb.exe

Without dropdown ID:

$("#SelectedCountryId").change(function () {
    $('option:selected', $(this)).text();
}

UPDATED:

TO NOT HAVE ANY b and quotes at first and end

How to convert bytes as seen to strings, even in weird situations.

As your code may have unrecognizable characters to 'utf-8' encoding, it's better to use just str without any additional parameters:

some_bad_bytes = b'\x02-\xdfI#)'
text = str( some_bad_bytes )[2:-1]

print(text)

Output: \x02-\xdfI

if you add 'utf-8' parameter, to these specific bytes, you should receive error.

As PYTHON 3 standard says, text would be in utf-8 now with no concern.

Remember that technically javascript objects don't have methods. They have properties, some of which may be function objects. That means that you can enumerate the methods in an object just like you can enumerate the properties. This (or something close to this) should work:

var bar
for (bar in foo)
{
    console.log("Foo has property " + bar);
}

There are complications to this because some properties of objects aren't enumerable so you won't be able to find every function on the object.

If you can live without tools.jar and it's only included as a chained dependency, you can exclude it from the offending project:

<dependency>
    <groupId>org.apache.ambari</groupId>
    <artifactId>ambari-metrics-common</artifactId>
    <version>2.1.0.0</version>
    <exclusions>
        <exclusion>
            <artifactId>jdk.tools</artifactId>
            <groupId>jdk.tools</groupId>
        </exclusion>
    </exclusions>
</dependency>

Extending from multiple classes is not allowed in java.. to prevent Deadly Diamond of death !

Laravel 5

This is working for me (i use laravel 5.6).

$collection = MyModel::all()->groupBy('column');

If you want to convert the collection to plain php array, you can use toArray()

$array = MyModel::all()->groupBy('column')->toArray();

Here is an example to play with Inline SVG for a list bullet (2020 Browsers)

list-style-image: url("data:image/svg+xml,
                      <svg width='50' height='50'
                           xmlns='http://www.w3.org/2000/svg' 
                           viewBox='0 0 72 72'>
                        <rect width='100%' height='100%' fill='pink'/>
                        <path d='M70 42a3 3 90 0 1 3 3a3 3 90 0 1-3 3h-12l-3 3l-6 15l-3
                                 l-6-3v-21v-3l15-15a3 3 90 0 1 0 0c3 0 3 0 3 3l-6 12h30
                                 m-54 24v-24h9v24z'/></svg>")

• Play with SVG width & height to set the size
• Play with M70 42 to position the hand
• different behaviour on FireFox or Chromium!
• remove the rect

li{
  font-size:2em;
  list-style-image: url("data:image/svg+xml,<svg width='3em' height='3em'                          xmlns='http://www.w3.org/2000/svg' viewBox='0 0 72 72'><rect width='100%' height='100%' fill='pink'/><path d='M70 42a3 3 90 0 1 3 3a3 3 90 0 1-3 3h-12l-3 3l-6 15l-3 3h-12l-6-3v-21v-3l15-15a3 3 90 0 1 0 0c3 0 3 0 3 3l-6 12h30m-54 24v-24h9v24z'/></svg>");
}

span{
  display:inline-block;
  vertical-align:top;
  margin-top:-10px;
  margin-left:-5px;
}

<ul>
  <li><span>Apples</span></li>
  <li><span>Bananas</span></li>
  <li>Oranges</li>
</ul>

I am using Ubuntu 18.04.1 LTS. In my case I had to open the file:

/home/[username]/netbeans-8.2/etc/netbeans.conf

And change the jdk location to:

netbeans_jdkhome="/opt/jdk/jdk1.8.0_152"

Then saved the file and re-run Netbeans. It worked for me.

PowerShell 3 has the $PSScriptRoot automatic variable:

Contains the directory from which a script is being run.

In Windows PowerShell 2.0, this variable is valid only in script modules (.psm1). Beginning in Windows PowerShell 3.0, it is valid in all scripts.

Don't be fooled by the poor wording. PSScriptRoot is the directory of the current file.

In PowerShell 2, you can calculate the value of $PSScriptRoot yourself:

# PowerShell v2
$PSScriptRoot = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition

You should look here: https://stackoverflow.com/questions/159025/jquery-grid-recommendations

Update

The link above takes to a question that was closed and then deleted. Here are the original suggestions that were on the most voted answer:

• Gijgo Grid: http://gijgo.com/grid/
• jQuery Grid: http://www.trirand.com/blog/
• Ingrid: http://reconstrukt.com/ingrid/
• SlickGrid http://github.com/mleibman/SlickGrid
• DataTables http://www.datatables.net/
• ShieldUI Grid http://demos.shieldui.com/web/grid-general/basic-usage

For anyone using Ubuntu and receiving this error when loading the page locally, but not on a web hosting service,

I just fixed this by opening up nautilus (sudo nautilus) and right click on the file you're trying to open, click properties > Settings > and give read write to 'everyone else'

Simplest is to use Match

If Not IsError(Application.Match(ValueToSearchFor, RangeToSearchIn, 0)) Then
    ' String is in range

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

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

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

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

Pull from the repository to a new directory, then rename the old one to old_crufty, and the new one to my_real_webserver_directory, and you're good to go.

If your intention is that every single file is in SVN, then this is a good way to test your theory. If your intention is that some files are not in SVN, then use Brian's copy/paste technique.

Diawi Alternatives

Since diawi.com have added some limitations for free accounds.

Next best available and easy to use alternative is

Microsoft

https://appcenter.ms

Google

https://firebase.google.com/docs/app-distribution/ios/distribute-console

Others

https://hockeyapp.net/

http://buildtry.com

Happy build sharing!

As hinted in this question, you have to "open" the lower-level artist API, by storing the figure and axis objects passed by the matplotlib functions you call (the fig, ax and cax variables below). You can then replace the default x- and y-axis ticks using set_xticklabels/set_yticklabels:

from sklearn.metrics import confusion_matrix

labels = ['business', 'health']
cm = confusion_matrix(y_test, pred, labels)
print(cm)
fig = plt.figure()
ax = fig.add_subplot(111)
cax = ax.matshow(cm)
plt.title('Confusion matrix of the classifier')
fig.colorbar(cax)
ax.set_xticklabels([''] + labels)
ax.set_yticklabels([''] + labels)
plt.xlabel('Predicted')
plt.ylabel('True')
plt.show()

Note that I passed the labels list to the confusion_matrix function to make sure it's properly sorted, matching the ticks.

This results in the following figure:

simply call req.url. that should do the work. you'll get something like /something?bla=foo

Your /home/gnu/bin/c++ seem to require additional flag to link things properly and CMake doesn't know about that.

To use /usr/bin/c++ as your compiler run cmake with -DCMAKE_CXX_COMPILER=/usr/bin/c++.

Also, CMAKE_PREFIX_PATH variable sets destination dir where your project' files should be installed. It has nothing to do with CMake installation prefix and CMake itself already know this.

Expanding on Jon's correct answer.

The problem here is that your are combining the new "Embed Interop Types" (or NoPIA) feature with use of a class type. The "Embed Interop Types" feature works by essentially statically linking in all of the types from a PIA (Primary Interop Assembly) into the referencing assembly removing the overhead of deploying it.

This feature works great for most types in a PIA but it does have restrictions. One of them is that you cannot embed classes (it's a servicing issue). Misha has a detailed blog article on why this is not allowed

• http://blogs.msdn.com/mshneer/archive/2009/12/07/interop-type-xxx-cannot-be-embedded-use-the-applicable-interface-instead.aspx

Syntax

To create user in MySQL/MariaDB 5.7.6 and higher, use CREATE USER syntax:

CREATE USER 'new_user'@'localhost' IDENTIFIED BY 'new_password';

then to grant all access to the database (e.g. my_db), use GRANT Syntax, e.g.

GRANT ALL ON my_db.* TO 'new_user'@'localhost';

^{Where ALL (priv_type) can be replaced with specific privilege such as SELECT, INSERT, UPDATE, ALTER, etc.}

Then to reload newly assigned permissions run:

FLUSH PRIVILEGES;

Executing

To run above commands, you need to run mysql command and type them into prompt, then logout by quit command or Ctrl-D.

To run from shell, use -e parameter (replace SELECT 1 with one of above commands):

$ mysql -e "SELECT 1"

or print statement from the standard input:

$ echo "FOO STATEMENT" | mysql

If you've got Access denied with above, specify -u (for user) and -p (for password) parameters, or for long-term access set your credentials in ~/.my.cnf, e.g.

[client]
user=root
password=root

Shell integration

For people not familiar with MySQL syntax, here are handy shell functions which are easy to remember and use (to use them, you need to load the shell functions included further down).

Here is example:

$ mysql-create-user admin mypass
| CREATE USER 'admin'@'localhost' IDENTIFIED BY 'mypass'

$ mysql-create-db foo
| CREATE DATABASE IF NOT EXISTS foo

$ mysql-grant-db admin foo
| GRANT ALL ON foo.* TO 'admin'@'localhost'
| FLUSH PRIVILEGES

$ mysql-show-grants admin
| SHOW GRANTS FOR 'admin'@'localhost'
| Grants for admin@localhost                                                                                   
| GRANT USAGE ON *.* TO 'admin'@'localhost' IDENTIFIED BY PASSWORD '*6C8989366EAF75BB670AD8EA7A7FC1176A95CEF4' |
| GRANT ALL PRIVILEGES ON `foo`.* TO 'admin'@'localhost'

$ mysql-drop-user admin
| DROP USER 'admin'@'localhost'

$ mysql-drop-db foo
| DROP DATABASE IF EXISTS foo

To use above commands, you need to copy&paste the following functions into your rc file (e.g. .bash_profile) and reload your shell or source the file. In this case just type source .bash_profile:

# Create user in MySQL/MariaDB.
mysql-create-user() {
  [ -z "$2" ] && { echo "Usage: mysql-create-user (user) (password)"; return; }
  mysql -ve "CREATE USER '$1'@'localhost' IDENTIFIED BY '$2'"
}

# Delete user from MySQL/MariaDB
mysql-drop-user() {
  [ -z "$1" ] && { echo "Usage: mysql-drop-user (user)"; return; }
  mysql -ve "DROP USER '$1'@'localhost';"
}

# Create new database in MySQL/MariaDB.
mysql-create-db() {
  [ -z "$1" ] && { echo "Usage: mysql-create-db (db_name)"; return; }
  mysql -ve "CREATE DATABASE IF NOT EXISTS $1"
}

# Drop database in MySQL/MariaDB.
mysql-drop-db() {
  [ -z "$1" ] && { echo "Usage: mysql-drop-db (db_name)"; return; }
  mysql -ve "DROP DATABASE IF EXISTS $1"
}

# Grant all permissions for user for given database.
mysql-grant-db() {
  [ -z "$2" ] && { echo "Usage: mysql-grand-db (user) (database)"; return; }
  mysql -ve "GRANT ALL ON $2.* TO '$1'@'localhost'"
  mysql -ve "FLUSH PRIVILEGES"
}

# Show current user permissions.
mysql-show-grants() {
  [ -z "$1" ] && { echo "Usage: mysql-show-grants (user)"; return; }
  mysql -ve "SHOW GRANTS FOR '$1'@'localhost'"
}

Note: If you prefer to not leave trace (such as passwords) in your Bash history, check: How to prevent commands to show up in bash history?

Maybe using new StringBuilder(str).reverse.toString() is convenient and efficient enough. But if you wanna do it yourself, try this one:

public static String reverse(String str) {
    StringBuilder sb = new StringBuilder(str.length());
    for (int i = str.length() - 1; i >= 0; i--) {
        sb.append(str.charAt(i));
    }
    return sb.toString();
}

Some answers use str.toCharArray() to get this string's char array, this will result to allocate new memory to store these chars, which is not efficient.

StringBuffer is thread safe, but StringBuilder is not. So StringBuffer is less efficient than StringBuilder. If not necessary, use StringBuilder is a better practice.

As einpoklum mentioned in their answer, since C++17 you can also use structured binding declarations. I want to extend on that by providing a full solution for iterating over a map of maps in a comfortable way:

int main() {
    std::map<std::string, std::map<std::string, std::string>> m {
        {"name1", {{"value1", "data1"}, {"value2", "data2"}}},
        {"name2", {{"value1", "data1"}, {"value2", "data2"}}},
        {"name3", {{"value1", "data1"}, {"value2", "data2"}}}
    };

    for (const auto& [k1, v1] : m)
        for (const auto& [k2, v2] : v1)
            std::cout << "m[" << k1 << "][" << k2 << "]=" << v2 << std::endl;

    return 0;
}

Note 1: For filling the map, I used an initializer list (which is a C++11 feature). This can sometimes be handy to keep fixed initializations compact.

Note 2: If you want to modify the map m within the loops, you have to remove the const keywords.

Code on Coliru

Instance of java.util.Date stores a date. So how can you store nothing in it or have it empty? It can only store references to instances of java.util.Date. If you make it null means that it is not referring any instance of java.util.Date.

You have tried date2=""; what you mean to do by this statement you want to reference the instance of String to a variable that is suppose to store java.util.Date. This is not possible as Java is Strongly Typed Language.

Edit

After seeing the comment posted to the answer of LastFreeNickname

I am having a form that the date textbox should be by default blank in the textbox, however while submitting the data if the user didn't enter anything, it should accept it

I would suggest you could check if the textbox is empty. And if it is empty, then you could store default date in your variable or current date or may be assign it null as shown below:

if(textBox.getText() == null || textBox.getText().equals(""){
    date2 = null; // For Null;
    // date2 = new Date(); For Current Date
    // date2 = new Date(0); For Default Date
}

Also I can assume since you are asking user to enter a date in a TextBox, you are using a DateFormat to parse the text that is entered in the TextBox. If this is the case you could simply call the dateFormat.parse() which throws a ParseException if the format in which the date was written is incorrect or is empty string. Here in the catch block you could put the above statements as show below:

try{
    date2 = dateFormat.parse(textBox.getText());
}catch(ParseException e){
    date2 = null; // For Null;
    // date2 = new Date(); For Current Date
    // date2 = new Date(0); For Default Date
}

As seen in the revision column of the Android SDK Manager, the latest published version of the Support Library is 22.2.1. You'll have to wait until 23.0.0 is published.

Edit: API 23 is already published. So u can use 23.0.0

svn update /path/to/working/copy

If subversion is not in your PATH, then of course

/path/to/subversion/svn update /path/to/working/copy

or if you are in the current root directory of your svn repo (it contains a .svn subfolder), it's as simple as

svn update

The latter strings shouldn't start with a slash. If they start with a slash, then they're considered an "absolute path" and everything before them is discarded.

Quoting the Python docs for os.path.join:

If a component is an absolute path, all previous components are thrown away and joining continues from the absolute path component.

Note on Windows, the behaviour in relation to drive letters, which seems to have changed compared to earlier Python versions:

On Windows, the drive letter is not reset when an absolute path component (e.g., r'\foo') is encountered. If a component contains a drive letter, all previous components are thrown away and the drive letter is reset. Note that since there is a current directory for each drive, os.path.join("c:", "foo") represents a path relative to the current directory on drive C: (c:foo), not c:\foo.

check this out:

    fun requestMyGpsLocation(context: Context, callback: (location: Location) -> Unit) {
        val request = LocationRequest()
        //        request.interval = 10000
        //        request.fastestInterval = 5000
        request.numUpdates = 1
        request.priority = LocationRequest.PRIORITY_HIGH_ACCURACY
        val client = LocationServices.getFusedLocationProviderClient(context)

        val permission = ContextCompat.checkSelfPermission(context,
            Manifest.permission.ACCESS_FINE_LOCATION )
        if (permission == PackageManager.PERMISSION_GRANTED) {
            client.requestLocationUpdates(request, object : LocationCallback() {
                override fun onLocationResult(locationResult: LocationResult?) {
                val location = locationResult?.lastLocation
                if (location != null)
                    callback.invoke(location)
            }
         }, null)
       }
     }

and

    fun zoomOnMe() {
        requestMyGpsLocation(this) { location ->
            mMap?.animateCamera(CameraUpdateFactory.newLatLngZoom(
                LatLng(location.latitude,location.longitude ), 13F ))
        }
    }

Because this post is the top one found on stackoverflow when searching for "ORA-00942: table or view does not exist insert", I want to mention another possible cause of this error (at least in Oracle 12c): a table uses a sequence to set a default value and the user executing the insert query does not have select privilege on the sequence. This was my problem and it took me an unnecessarily long time to figure it out.

To reproduce the problem, execute the following SQL as user1:

create sequence seq_customer_id;

create table customer (
c_id number(10) default seq_customer_id.nextval primary key,
name varchar(100) not null,
surname varchar(100) not null
);

grant select, insert, update, delete on customer to user2;

Then, execute this insert statement as user2:

insert into user1.customer (name,surname) values ('michael','jackson');

The result will be "ORA-00942: table or view does not exist" even though user2 does have insert and select privileges on user1.customer table and is correctly prefixing the table with the schema owner name. To avoid the problem, you must grant select privilege on the sequence:

grant select on seq_customer_id to user2;

Make a bat file with the following in it:

copy /y C:\temp\log1k.txt C:\temp\log1k_copied.txt

However, I think there are issues if there are spaces in your directory names. Notice this was copied to the same directory, but that doesn't matter. If you want to see how it runs, make another bat file that calls the first and outputs to a log:

C:\temp\test.bat > C:\temp\test.log

(assuming the first bat file was called test.bat and was located in that directory)

Use can use one of below this

history.back();     // equivalent to clicking back button
history.go(-1);     // equivalent to history.back();

I am using as below for back button

<a class="btn btn-info float-right" onclick="history.back();" >Back</a>

As said above -- use Euclidean distance.

from math import hypot

def in_radius(c_x, c_y, r, x, y):
    return math.hypot(c_x-x, c_y-y) <= r

Right click on eclipse icon and click on open file location then delete the eclipse folder from drive(Save backup of your eclipse workspace if you want). Also delete eclipse icon. Thats it..

'OR 1=1 is an attempt to make a query succeed no matter what
The /* is an attempt to start a multiline comment so the rest of the query is ignored.

An example would be

SELECT userid 
FROM users 
WHERE username = ''OR 1=1/*' 
    AND password = ''
    AND domain = ''

As you can see if you were to populate the username field without escaping the ' no matter what credentials the user passes in the query would return all userids in the system likely granting access to the attacker (possibly admin access if admin is your first user). You will also notice the remainder of the query would be commented out because of the /* including the real '.

The fact that you can see the value in your database means that it was escaped and that particular attack did not succeed. However, you should investigate if any other attempts were made.

Autobahn has a good websocket client implementation for Python as well as some good examples. I tested the following with a Tornado WebSocket server and it worked.

from twisted.internet import reactor
from autobahn.websocket import WebSocketClientFactory, WebSocketClientProtocol, connectWS


class EchoClientProtocol(WebSocketClientProtocol):

   def sendHello(self):
      self.sendMessage("Hello, world!")

   def onOpen(self):
      self.sendHello()

   def onMessage(self, msg, binary):
      print "Got echo: " + msg
      reactor.callLater(1, self.sendHello)


if __name__ == '__main__':

   factory = WebSocketClientFactory("ws://localhost:9000")
   factory.protocol = EchoClientProtocol
   connectWS(factory)
   reactor.run()

After you've retrieved the reflect.Value of the field by using Field(i) you can get a interface value from it by calling Interface(). Said interface value then represents the value of the field.

There is no function to convert the value of the field to a concrete type as there are, as you may know, no generics in go. Thus, there is no function with the signature GetValue() T with T being the type of that field (which changes of course, depending on the field).

The closest you can achieve in go is GetValue() interface{} and this is exactly what reflect.Value.Interface() offers.

The following code illustrates how to get the values of each exported field in a struct using reflection (play):

import (
    "fmt"
    "reflect"
)

func main() {
    x := struct{Foo string; Bar int }{"foo", 2}

    v := reflect.ValueOf(x)

    values := make([]interface{}, v.NumField())

    for i := 0; i < v.NumField(); i++ {
        values[i] = v.Field(i).Interface()
    }

    fmt.Println(values)
}

Way to instantly get first value:

$neededObject = array_reduce(
    $arrayOfObjects,
    function ($result, $item) use ($searchedValue) {
        return $item->id == $searchedValue ? $item : $result;
    }
);

You can use ObjectMapper.convertValue(), either value by value or even for the whole list. But you need to know the type to convert to:

POJO pojo = mapper.convertValue(singleObject, POJO.class);
// or:
List<POJO> pojos = mapper.convertValue(listOfObjects, new TypeReference<List<POJO>>() { });

this is functionally same as if you did:

byte[] json = mapper.writeValueAsBytes(singleObject);
POJO pojo = mapper.readValue(json, POJO.class);

but avoids actual serialization of data as JSON, instead using an in-memory event sequence as the intermediate step.

My approach was similar to @SoftwareFactor, but different, perhaps because I'm running a different OS, Windows Server 2012. These steps worked for me.

Control Panel > System and Security > Administrative Tools > Services, right-click SQL Server Browser > Properties > General tab, change Startup type to Automatic, click Apply button, then click Start button in Service Status area.

Don't check. Go ahead and assume that it is the right input, and catch an exception if it isn't.

intresult = None
while intresult is None:
    input = raw_input()
    try: intresult = int(input)
    except ValueError: pass

col-lg-4 col-md-6 col-sm-8 col-11 mx-auto

 1. col-lg-4 = 1200px (popular 1366, 1600, 1920+)
 2. col-md-6 = 970px (popular 1024, 1200)
 3. col-sm-8 = 768px (popular 800, 768)
 4. col-11 set default smaller devices for gutter (popular 600,480,414,375,360,312)
 5. mx-auto = always block center

static_cast vs dynamic_cast vs reinterpret_cast internals view on a downcast/upcast

In this answer, I want to compare these three mechanisms on a concrete upcast/downcast example and analyze what happens to the underlying pointers/memory/assembly to give a concrete understanding of how they compare.

I believe that this will give a good intuition on how those casts are different:

• static_cast: does one address offset at runtime (low runtime impact) and no safety checks that a downcast is correct.

• dyanamic_cast: does the same address offset at runtime like static_cast, but also and an expensive safety check that a downcast is correct using RTTI.

  This safety check allows you to query if a base class pointer is of a given type at runtime by checking a return of nullptr which indicates an invalid downcast.

  Therefore, if your code is not able to check for that nullptr and take a valid non-abort action, you should just use static_cast instead of dynamic cast.

  If an abort is the only action your code can take, maybe you only want to enable the dynamic_cast in debug builds (-NDEBUG), and use static_cast otherwise, e.g. as done here, to not slow down your fast runs.

• reinterpret_cast: does nothing at runtime, not even the address offset. The pointer must point exactly to the correct type, not even a base class works. You generally don't want this unless raw byte streams are involved.

Consider the following code example:

main.cpp

#include <iostream>

struct B1 {
    B1(int int_in_b1) : int_in_b1(int_in_b1) {}
    virtual ~B1() {}
    void f0() {}
    virtual int f1() { return 1; }
    int int_in_b1;
};

struct B2 {
    B2(int int_in_b2) : int_in_b2(int_in_b2) {}
    virtual ~B2() {}
    virtual int f2() { return 2; }
    int int_in_b2;
};

struct D : public B1, public B2 {
    D(int int_in_b1, int int_in_b2, int int_in_d)
        : B1(int_in_b1), B2(int_in_b2), int_in_d(int_in_d) {}
    void d() {}
    int f2() { return 3; }
    int int_in_d;
};

int main() {
    B2 *b2s[2];
    B2 b2{11};
    D *dp;
    D d{1, 2, 3};

    // The memory layout must support the virtual method call use case.
    b2s[0] = &b2;
    // An upcast is an implicit static_cast<>().
    b2s[1] = &d;
    std::cout << "&d           " << &d           << std::endl;
    std::cout << "b2s[0]       " << b2s[0]       << std::endl;
    std::cout << "b2s[1]       " << b2s[1]       << std::endl;
    std::cout << "b2s[0]->f2() " << b2s[0]->f2() << std::endl;
    std::cout << "b2s[1]->f2() " << b2s[1]->f2() << std::endl;

    // Now for some downcasts.

    // Cannot be done implicitly
    // error: invalid conversion from ‘B2*’ to ‘D*’ [-fpermissive]
    // dp = (b2s[0]);

    // Undefined behaviour to an unrelated memory address because this is a B2, not D.
    dp = static_cast<D*>(b2s[0]);
    std::cout << "static_cast<D*>(b2s[0])            " << dp           << std::endl;
    std::cout << "static_cast<D*>(b2s[0])->int_in_d  " << dp->int_in_d << std::endl;

    // OK
    dp = static_cast<D*>(b2s[1]);
    std::cout << "static_cast<D*>(b2s[1])            " << dp           << std::endl;
    std::cout << "static_cast<D*>(b2s[1])->int_in_d  " << dp->int_in_d << std::endl;

    // Segfault because dp is nullptr.
    dp = dynamic_cast<D*>(b2s[0]);
    std::cout << "dynamic_cast<D*>(b2s[0])           " << dp           << std::endl;
    //std::cout << "dynamic_cast<D*>(b2s[0])->int_in_d " << dp->int_in_d << std::endl;

    // OK
    dp = dynamic_cast<D*>(b2s[1]);
    std::cout << "dynamic_cast<D*>(b2s[1])           " << dp           << std::endl;
    std::cout << "dynamic_cast<D*>(b2s[1])->int_in_d " << dp->int_in_d << std::endl;

    // Undefined behaviour to an unrelated memory address because this
    // did not calculate the offset to get from B2* to D*.
    dp = reinterpret_cast<D*>(b2s[1]);
    std::cout << "reinterpret_cast<D*>(b2s[1])           " << dp           << std::endl;
    std::cout << "reinterpret_cast<D*>(b2s[1])->int_in_d " << dp->int_in_d << std::endl;
}

Compile, run and disassemble with:

g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic -o main.out main.cpp
setarch `uname -m` -R ./main.out
gdb -batch -ex "disassemble/rs main" main.out

where setarch is used to disable ASLR to make it easier to compare runs.

Possible output:

&d           0x7fffffffc930
b2s[0]       0x7fffffffc920
b2s[1]       0x7fffffffc940
b2s[0]->f2() 2
b2s[1]->f2() 3
static_cast<D*>(b2s[0])            0x7fffffffc910
static_cast<D*>(b2s[0])->int_in_d  1
static_cast<D*>(b2s[1])            0x7fffffffc930
static_cast<D*>(b2s[1])->int_in_d  3
dynamic_cast<D*>(b2s[0])           0
dynamic_cast<D*>(b2s[1])           0x7fffffffc930
dynamic_cast<D*>(b2s[1])->int_in_d 3
reinterpret_cast<D*>(b2s[1])           0x7fffffffc940
reinterpret_cast<D*>(b2s[1])->int_in_d 32767

Now, as mentioned at: https://en.wikipedia.org/wiki/Virtual_method_table in order to support the virtual method calls efficiently, the memory data structure of D has to look something like:

B1:
  +0: pointer to virtual method table of B1
  +4: value of int_in_b1

B2:
  +0: pointer to virtual method table of B2
  +4: value of int_in_b2

D:
  +0: pointer to virtual method table of D (for B1)
  +4: value of int_in_b1
  +8: pointer to virtual method table of D (for B2)
 +12: value of int_in_b2
 +16: value of int_in_d

The key fact is that the memory data structure of D contains inside it memory structure compatible with that of B1 and that of B2 internally.

Therefore we reach the critical conclusion:

an upcast or downcast only needs to shift the pointer value by a value known at compile time

This way, when D gets passed to the base type array, the type cast actually calculates that offset and points something that looks exactly like a valid B2 in memory:

b2s[1] = &d;

except that this one has the vtable for D instead of B2, and therefore all virtual calls work transparently.

Now, we can finally get back to type casting and the analysis of our concrete example.

From the stdout output we see:

&d           0x7fffffffc930
b2s[1]       0x7fffffffc940

Therefore, the implicit static_cast done there did correctly calculate the offset from the full D data structure at 0x7fffffffc930 to the B2 like one which is at 0x7fffffffc940. We also infer that what lies between 0x7fffffffc930 and 0x7fffffffc940 is likely be the B1 data and vtable.

Then, on the downcast sections, it is now easy to understand how the invalid ones fail and why:

• static_cast<D*>(b2s[0]) 0x7fffffffc910: the compiler just went up 0x10 at compile time bytes to try and go from a B2 to the containing D

  But because b2s[0] was not a D, it now points to an undefined memory region.

  The disassembly is:

  49          dp = static_cast<D*>(b2s[0]);
     0x0000000000000fc8 <+414>:   48 8b 45 d0     mov    -0x30(%rbp),%rax
     0x0000000000000fcc <+418>:   48 85 c0        test   %rax,%rax
     0x0000000000000fcf <+421>:   74 0a   je     0xfdb <main()+433>
     0x0000000000000fd1 <+423>:   48 8b 45 d0     mov    -0x30(%rbp),%rax
     0x0000000000000fd5 <+427>:   48 83 e8 10     sub    $0x10,%rax
     0x0000000000000fd9 <+431>:   eb 05   jmp    0xfe0 <main()+438>
     0x0000000000000fdb <+433>:   b8 00 00 00 00  mov    $0x0,%eax
     0x0000000000000fe0 <+438>:   48 89 45 98     mov    %rax,-0x68(%rbp)
  

  so we see that GCC does:

  • check if pointer is NULL, and if yes return NULL
  • otherwise, subtract 0x10 from it to reach the D which does not exist

• dynamic_cast<D*>(b2s[0]) 0: C++ actually found that the cast was invalid and returned nullptr!

  There is no way this can be done at compile time, and we will confirm that from the disassembly:

  59          dp = dynamic_cast<D*>(b2s[0]);
     0x00000000000010ec <+706>:   48 8b 45 d0     mov    -0x30(%rbp),%rax
     0x00000000000010f0 <+710>:   48 85 c0        test   %rax,%rax
     0x00000000000010f3 <+713>:   74 1d   je     0x1112 <main()+744>
     0x00000000000010f5 <+715>:   b9 10 00 00 00  mov    $0x10,%ecx
     0x00000000000010fa <+720>:   48 8d 15 f7 0b 20 00    lea    0x200bf7(%rip),%rdx        # 0x201cf8 <_ZTI1D>
     0x0000000000001101 <+727>:   48 8d 35 28 0c 20 00    lea    0x200c28(%rip),%rsi        # 0x201d30 <_ZTI2B2>
     0x0000000000001108 <+734>:   48 89 c7        mov    %rax,%rdi
     0x000000000000110b <+737>:   e8 c0 fb ff ff  callq  0xcd0 <__dynamic_cast@plt>
     0x0000000000001110 <+742>:   eb 05   jmp    0x1117 <main()+749>
     0x0000000000001112 <+744>:   b8 00 00 00 00  mov    $0x0,%eax
     0x0000000000001117 <+749>:   48 89 45 98     mov    %rax,-0x68(%rbp)
  

  First there is a NULL check, and it returns NULL if th einput is NULL.

  Otherwise, it sets up some arguments in the RDX, RSI and RDI and calls __dynamic_cast.

  I don't have the patience to analyze this further now, but as others said, the only way for this to work is for __dynamic_cast to access some extra RTTI in-memory data structures that represent the class hierarchy.

  It must therefore start from the B2 entry for that table, then walk this class hierarchy until it finds that the vtable for a D typecast from b2s[0].

  This is why reinterpret cast is potentially expensive! Here is an example where a one liner patch converting a dynamic_cast to a static_cast in a complex project reduced runtime by 33%!.

• reinterpret_cast<D*>(b2s[1]) 0x7fffffffc940 this one just believes us blindly: we said there is a D at address b2s[1], and the compiler does no offset calculations.

  But this is wrong, because D is actually at 0x7fffffffc930, what is at 0x7fffffffc940 is the B2-like structure inside D! So trash gets accessed.

  We can confirm this from the horrendous -O0 assembly that just moves the value around:

  70          dp = reinterpret_cast<D*>(b2s[1]);
     0x00000000000011fa <+976>:   48 8b 45 d8     mov    -0x28(%rbp),%rax
     0x00000000000011fe <+980>:   48 89 45 98     mov    %rax,-0x68(%rbp)
  

Related questions:

• When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
• How is dynamic_cast implemented
• Downcasting using the 'static_cast' in C++

Tested on Ubuntu 18.04 amd64, GCC 7.4.0.

I think the simplest/handy way to consuming JSON is using a Java class that resembles your JSON: https://stackoverflow.com/a/6019761

But if you can't use a Java class you can use one of these two solutions.

Solution 1: you can do it receiving a Map<String, Object> from your controller:

@RequestMapping(
    value = "/process", 
    method = RequestMethod.POST)
public void process(@RequestBody Map<String, Object> payload) 
    throws Exception {

  System.out.println(payload);

}

Using your request:

curl -H "Accept: application/json" -H "Content-type: application/json" \
-X POST -d '{"name":"value"}' http://localhost:8080/myservice/process

Solution 2: otherwise you can get the POST payload as a String:

@RequestMapping(
    value = "/process", 
    method = RequestMethod.POST,
    consumes = "text/plain")
public void process(@RequestBody String payload) throws Exception {

  System.out.println(payload);

}

Then parse the string as you want. Note that must be specified consumes = "text/plain" on your controller. In this case you must change your request with Content-type: text/plain:

curl -H "Accept: application/json" -H "Content-type: text/plain" -X POST \
-d '{"name":"value"}' http://localhost:8080/myservice/process

Below function would work. You can copy from here and paste there...

-(void)savePhotoToAlbum:(UIImage*)imageToSave {

    CGImageRef imageRef = imageToSave.CGImage;
    NSDictionary *metadata = [NSDictionary new]; // you can add
    ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];

    [library writeImageToSavedPhotosAlbum:imageRef metadata:metadata completionBlock:^(NSURL *assetURL,NSError *error){
        if(error) {
            NSLog(@"Image save eror");
        }
    }];
}

Here are 3 examples:

$(document).on('click', 'ul li a', function (e) {_x000D_
    e.preventDefault();_x000D_
_x000D_
    var example1 = $(this).parents('ul:first').attr('id');_x000D_
    $('#results').append('<p>Result from example 1: <strong>' + example1 + '</strong></p>');_x000D_
_x000D_
    var example2 = $(this).parents('ul:eq(0)').attr('id');_x000D_
    $('#results').append('<p>Result from example 2: <strong>' + example2 + '</strong></p>');_x000D_
  _x000D_
    var example3 = $(this).closest('ul').attr('id');_x000D_
    $('#results').append('<p>Result from example 3: <strong>' + example3 + '</strong></p>');_x000D_
  _x000D_
  _x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<ul id ="myList">_x000D_
  <li><a href="www.example.com">Click here</a></li>_x000D_
</ul>_x000D_
_x000D_
<div id="results">_x000D_
  <h1>Results:</h1>_x000D_
</div>

Let me know whether it was helpful.

A clean and flexible solution in MS SQL Server 2005/2008 is to create a CLR Agregate function.

You'll find quite a few articles (with code) on google.

It looks like this article walks you through the whole process using C#.

The lmplot function returns a FacetGrid instance. This object has a method called set, to which you can pass key=value pairs and they will be set on each Axes object in the grid.

Secondly, you can set only one side of an Axes limit in matplotlib by passing None for the value you want to remain as the default.

Putting these together, we have:

g = sns.lmplot('X', 'Y', df, col='Z', sharex=False, sharey=False)
g.set(ylim=(0, None))

try this

$start_date = date_create($_POST['start_date']);
$start_date = date_format($start_date,"Y-m-d H:i:s");

If issue remains even after updating dependency version, then delete everything present under
C:\Users\[your_username]\.m2\repository\com\fasterxml

And, make sure following dependencies are present:

            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>

            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-annotations</artifactId>
                <version>${jackson.version}</version>
            </dependency>

            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-core</artifactId>
                <version>${jackson.version}</version>
            </dependency>

views cannot call controller functions.

If you have Java 5, use char c = ...; String s = String.format ("\\u%04x", (int)c);

If your source isn't a Unicode character (char) but a String, you must use charAt(index) to get the Unicode character at position index.

Don't use codePointAt(index) because that will return 24bit values (full Unicode) which can't be represented with just 4 hex digits (it needs 6). See the docs for an explanation.

[EDIT] To make it clear: This answer doesn't use Unicode but the method which Java uses to represent Unicode characters (i.e. surrogate pairs) since char is 16bit and Unicode is 24bit. The question should be: "How can I convert char to a 4-digit hex number", since it's not (really) about Unicode.

You cannot use a variable in a create table statement. The best thing I can suggest is to write the entire query as a string and exec that.

Try something like this:

declare @query varchar(max);
set @query = 'create database TEST...';

exec (@query);

Note that another approach is to keep with the 4.0 validation behaviour, but to define your own class that derives from RequestValidator and set:

<httpRuntime requestValidationType="YourNamespace.YourValidator" />

(where YourNamespace.YourValidator is well, you should be able to guess...)

This way you keep the advantages of 4.0s behaviour (specifically, that the validation happens earlier in the processing), while also allowing the requests you need to let through, through.

Couple of commands are there to list all dbs in MongoDB shell.

first , launch Mongodb shell using 'mongo' command.

mongo

Then use any of the below commands to list all the DBs.

• show dbs
• show databases
• db.adminCommand( { listDatabases: 1 , nameOnly : true} )

For more details please check here

Thank you.

This is super fast and is 100% random even if you have gaps.

1. Count the number x of rows that you have available SELECT COUNT(*) as rows FROM TABLE
2. Pick 10 distinct random numbers a_1,a_2,...,a_10 between 0 and x
3. Query your rows like this: SELECT * FROM TABLE LIMIT 1 offset a_i for i=1,...,10

I found this hack in the book SQL Antipatterns from Bill Karwin.

var list = new List<string>();
var queryable = list.AsQueryable();

Add a reference to: System.Linq

SELECT c.ID
FROM clients c
WHERE EXISTS(SELECT c2.ID 
FROM clients2 c2
WHERE c2.ID = c.ID);

Will return all ID's that are the SAME in both tables. To get the differences change EXISTS to NOT EXISTS.

Easy!

Just split the incoming address list on the ";" character, and add them to the mail message:

foreach (var address in addresses.Split(new [] {";"}, StringSplitOptions.RemoveEmptyEntries))
{
    mailMessage.To.Add(address);    
}

In this example, addresses contains "[email protected];[email protected]".

Follow these steps :

1. Create a project using the WSDL.
2. Choose your interface and open in interface viewer.
3. Navigate to the tab 'WSDL Content'.
4. Use the last icon under the tab 'WSDL Content' : 'Export the entire WSDL and included/imported files to a local directory'.
5. select the folder where you want the XSDs to be exported to.

Note: SOAPUI will remove all relative paths and will save all XSDs to the same folder. Refer the screenshot :

Chances are that, if all the answers above didn't work for you, and you are using a request validation, you forgot to put the authorization to true.

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class EquipmentRequest extends FormRequest {
  /**
   * Determine if the user is authorized to make this request.
   *
   * @return bool
   */
  public function authorize() {
    /*******************************************************/
    return true; /************ THIS VALUE NEEDS TO BE TRUE */
    /*******************************************************/
  }

  /* ... */
}

Using jQuery ...

$(document).height() & $(window).height() will return the same values ... the key is to reset body's padding and margin so that you get no scrolling.

<!--

body {
    padding: 0px;
    margin: 0px;
    position: relative;
}

-->

Hope this helps.

Generally VSCode uses the github credentials from system's credential manager, it doesn't store anywhere in the settings. As question says Changing the git user inside Visual Studio Code, is not inside rather outside.

Search for or Go to credential manager (Windows control panel) -> Windows Credentials -> Update the GitHub password from the list.

something like so might work:

<script type="text/javascript">
$(document).ready(function(){
    var $input = $("<input name='myField' type='text'>");
    $('#section2').append($input);
});
</script>

<form>
    <div id="section1"><!-- some controls--></div>
    <div id="section2"><!-- for dynamic controls--></div>
</form>

Also you can use f-string formatting to write integer to file

For appending use following code, for writing once replace 'a' with 'w'.

for i in s_list:
    with open('path_to_file','a') as file:
        file.write(f'{i}\n')

file.close()

As to me, the below code does't work, when it runs,the image will step to the next quickly without your press:

import cv2
img = cv2.imread('sof.jpg') # load a dummy image
while(1):
    cv2.imshow('img',img)
    k = cv2.waitKey(33)
    if k==27:    # Esc key to stop
        break
    elif k==-1:  # normally -1 returned,so don't print it
        continue
    else:
        print k # else print its value

But this works:

def test_wait_key():
    lst_img_path = [
        '/home/xy/yy_face_head/face_det_test/111.png',
        '/home/xy/yy_face_head/face_det_test/222.png'
        #.....more path ...
    ]

    for f_path in lst_img_path:
        img = cv2.imread(f_path)
        cv2.imshow('tmp', img)
        c = cv2.waitKey(0) % 256

        if c == ord('a'):
            print "pressed a"
        else:
            print 'you press %s' % chr(c)

Output as below:

It's not broken. It's doing exactly what you told it to; those pixels are black with full transparency. You will need to iterate across all pixels and convert ones with full transparency to white.

Below will replace the link with it's text

$('a').each(function () {
    $(this).replaceWith($(this).text());
});

Edit :

Above given code will work with hyperlinks with text only, it will not work with images. When we'll try it with image link it won't show any image.

To make this code compatible with image links following will work fine

// below given function will replace links with images i.e. for image links
$('a img').each(function () {
    var image = this.src;
    var img = $('<img>', { src: image });
    $(this).parent().replaceWith(img);
});

// This piece of code will replace links with its text i.e. for text links
$('a').each(function () {
    $(this).replaceWith($(this).text());
});

explanation : In above given code snippets, in first snippet we are replacing all the image links with it's images only. After that we are replacing text links with it's text.

There is some faster way (https://www.youtube.com/watch?v=TSjEMLBAYVc):

1. Insert image (Ctrl+V) to the excel.
2. Validate "Picture Tools -> Align -> Snap To Grid" is checked
3. Resize the image to fit the cell (or number of cells)
4. Right-click on the image and check "Size and Properties... -> Properties -> Move and size with cells"

If you need a diagonal border instead of a diagonal corner, you can stack 2 divs with each a pseudo element:

DEMO

http://codepen.io/remcokalf/pen/BNxLMJ

.container {_x000D_
  padding: 100px 200px;_x000D_
  overflow: hidden;_x000D_
}_x000D_
_x000D_
div.diagonal {_x000D_
  background: #da1d00;_x000D_
  color: #fff;_x000D_
  font-family: Arial, Helvetica, sans-serif;_x000D_
  width: 300px;_x000D_
  height: 300px;_x000D_
  padding: 70px;_x000D_
  position: relative;_x000D_
  margin: 30px;_x000D_
  float: left;_x000D_
}_x000D_
_x000D_
div.diagonal2 {_x000D_
  background: #da1d00;_x000D_
  color: #fff;_x000D_
  font-family: Arial, Helvetica, sans-serif;_x000D_
  width: 300px;_x000D_
  height: 300px;_x000D_
  padding: 70px;_x000D_
  position: relative;_x000D_
  margin: 30px;_x000D_
  background: #da1d00 url(http://www.remcokalf.nl/background.jpg) left top;_x000D_
  background-size: cover;_x000D_
  float: left;_x000D_
}_x000D_
_x000D_
div.diagonal3 {_x000D_
  background: #da1d00;_x000D_
  color: #da1d00;_x000D_
  font-family: Arial, Helvetica, sans-serif;_x000D_
  width: 432px;_x000D_
  height: 432px;_x000D_
  padding: 4px;_x000D_
  position: relative;_x000D_
  margin: 30px;_x000D_
  float: left;_x000D_
}_x000D_
_x000D_
div.inside {_x000D_
  background: #fff;_x000D_
  color: #da1d00;_x000D_
  font-family: Arial, Helvetica, sans-serif;_x000D_
  width: 292px;_x000D_
  height: 292px;_x000D_
  padding: 70px;_x000D_
  position: relative;_x000D_
}_x000D_
_x000D_
div.diagonal:before,_x000D_
div.diagonal2:before {_x000D_
  content: '';_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  left: 0;_x000D_
  border-top: 80px solid #fff;_x000D_
  border-right: 80px solid transparent;_x000D_
  width: 0;_x000D_
}_x000D_
_x000D_
div.diagonal3:before {_x000D_
  content: '';_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  left: 0;_x000D_
  border-top: 80px solid #da1d00;_x000D_
  border-right: 80px solid transparent;_x000D_
  width: 0;_x000D_
  z-index: 1;_x000D_
}_x000D_
_x000D_
div.inside:before {_x000D_
  content: '';_x000D_
  position: absolute;_x000D_
  top: -4px;_x000D_
  left: -4px;_x000D_
  border-top: 74px solid #fff;_x000D_
  border-right: 74px solid transparent;_x000D_
  width: 0;_x000D_
  z-index: 2;_x000D_
}_x000D_
_x000D_
h2 {_x000D_
  font-size: 30px;_x000D_
  line-height: 1.3em;_x000D_
  margin-bottom: 1em;_x000D_
  position: relative;_x000D_
  z-index: 1000;_x000D_
}_x000D_
_x000D_
p {_x000D_
  font-size: 16px;_x000D_
  line-height: 1.6em;_x000D_
  margin-bottom: 1.8em;_x000D_
}_x000D_
_x000D_
#grey {_x000D_
  width: 100%;_x000D_
  height: 400px;_x000D_
  background: #ccc;_x000D_
  position: relative;_x000D_
  margin-top: 100px;_x000D_
}_x000D_
_x000D_
#grey:before {_x000D_
  content: '';_x000D_
  position: absolute;_x000D_
  top: 0;_x000D_
  left: 0;_x000D_
  border-top: 80px solid #fff;_x000D_
  border-right: 80px solid #ccc;_x000D_
  width: 400px;_x000D_
}

<div id="grey"></div>_x000D_
<div class="container">_x000D_
  <div class="diagonal">_x000D_
    <h2>Header title</h2>_x000D_
    <p>Yes a CSS diagonal corner is possible</p>_x000D_
  </div>_x000D_
  <div class="diagonal2">_x000D_
    <h2>Header title</h2>_x000D_
    <p>Yes a CSS diagonal corner with background image is possible</p>_x000D_
  </div>_x000D_
  <div class="diagonal3">_x000D_
    <div class="inside">_x000D_
      <h2>Header title</h2>_x000D_
      <p>Yes a CSS diagonal border is even possible with an extra div</p>_x000D_
    </div>_x000D_
  </div>_x000D_
</div>

You can do this with merge:

df_merged = df1.merge(df2, how='outer', left_index=True, right_index=True)

The keyword argument how='outer' keeps all indices from both frames, filling in missing indices with NaN. The left_index and right_index keyword arguments have the merge be done on the indices. If you get all NaN in a column after doing a merge, another troubleshooting step is to verify that your indices have the same dtypes.

The merge code above produces the following output for me:

                V1    V2
A 2012-01-01  12.0  15.0
  2012-02-01  14.0   NaN
  2012-03-01   NaN  21.0
B 2012-01-01  15.0  24.0
  2012-02-01   8.0   9.0
C 2012-01-01  17.0   NaN
  2012-02-01   9.0   NaN
D 2012-01-01   NaN   7.0
  2012-02-01   NaN  16.0

As defined in App_start.BundleConfig, it's just calling

bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.css"));

Nothing happens even if you remove that section.

I have something different stuff for you which is easy and effective.

    <style> 
    .case-after:after { // set your properties here like eg: 
        color:#3fd309 !important; 
     } 
     .case-before:before { // set your properties here like eg: 
        color:#151715 !important; 
     }
 </style>
  // case for after
    $('#button-id').on('click', function() {
        $(".target-div").toggleClass('case-after');
    });

     // case for before
    $('#button-id').on('click', function() {
        $(".target-div").toggleClass('case-before');
    });

Please try the following:

import re

name = ["A1B1", "djdd", "B2C4", "C2H2", "jdoi","1A4V"]

# Match names.
for element in name:
     m = re.match("(^[A-Z]\d[A-Z]\d)", element)
     if m:
        print(m.groups())

You can use a constructor with no parameters in your Parent class :

public parent() { } 

This can be done for a normal subview inside a larger UIView, but it doesn't work automatically for headerViews. The height of a headerView is determined by what's returned by tableView:heightForHeaderInSection: so you have to calculate the height based on the height of the UILabel plus space for the UIButton and any padding you need. You need to do something like this:

-(CGFloat)tableView:(UITableView *)tableView 
          heightForHeaderInSection:(NSInteger)section {
    NSString *s = self.headeString[indexPath.section];
    CGSize size = [s sizeWithFont:[UIFont systemFontOfSize:17] 
                constrainedToSize:CGSizeMake(281, CGFLOAT_MAX)
                    lineBreakMode:NSLineBreakByWordWrapping];
    return size.height + 60;
}

Here headerString is whatever string you want to populate the UILabel, and the 281 number is the width of the UILabel (as setup in Interface Builder)

I am in the same boat as the OP.

Using a Windows command prompt, from directory:

C:\Python34\Scripts>
pip install wheel

seemed to work.

Changing directory to where the whl was located, it just tells me 'pip is not recognized'. Going back to C:\Python34\Scripts>, then using the full command above to provide the 'where/its/downloaded' location, it says Requirement 'scikit_image-...-win32.whl' looks like a filename, but the filename does not exist.

So I dropped a copy of the .whl in Python34/Scripts, ran the exact same command over again (with the --find-links= still going to the other folder), and this time it worked.

I wanted to bind a particular data to dropdown and it should be distinct. I did the following:

List<ClassDetails> classDetails;
List<string> classDetailsData = classDetails.Select(dt => dt.Data).Distinct.ToList();
ddlData.DataSource = classDetailsData;
ddlData.Databind();

See if it helps

How to simply return a pre-resolved promise in AngularJS

Resolved promise:

return $q.when( someValue );    // angularjs 1.2+
return $q.resolve( someValue ); // angularjs 1.4+, alias to `when` to match ES6

Rejected promise:

return $q.reject( someValue );

I have been able to ping from VMs and the host by setting the VM's network settings to "Bridged" mode. This, in short, places them all on the same physical network. This coupled with your static IP addresses should do the trick.

I don't know if this is new functionality, but this will plot on separate figures:

df.plot(y='korisnika')
df.plot(y='osiguranika')

while this will plot on the same figure: (just like the code in the op)

df.plot(y=['korisnika','osiguranika'])

I found this question because I was using the former method and wanted them to plot on the same figure, so your question was actually my answer.

Copy multiple files from remote to local:

$ scp [email protected]:/some/remote/directory/\{a,b,c\} ./

Copy multiple files from local to remote:

$ scp foo.txt bar.txt [email protected]:~
$ scp {foo,bar}.txt [email protected]:~
$ scp *.txt [email protected]:~

Copy multiple files from remote to remote:

$ scp [email protected]:/some/remote/directory/foobar.txt \
[email protected]:/some/remote/directory/

Source: http://www.hypexr.org/linux_scp_help.php

In some API maybe it does not work (like rabbitmq).

there is alternative:

curl http://username:[email protected]

curl http://admin:[email protected]

To make the border flash you can do this:

function focusTries() {
    document.getElementById('tries').style.border = 'solid 1px #ff0000;'
    setTimeout ( clearBorder(), 1000 );
}

function clearBorder() {
    document.getElementById('tries').style.border = '';
}

This will make the border solid red for 1 second then remove it again.

There is one more thing you should be aware of - MIME.

If you need to use a MIME type and it isn't supported by default, you can register your own handlers in config/initializers/mime_types.rb:

Mime::Type.register "text/markdown", :markdown

For jQuery versions 1.6+ then

$('#select_all').click( function() {
    $('#countries option').prop('selected', true);
});

Or for older versions:

$('#select_all').click( function() {
    $('#countries option').attr('selected', 'selected');
});

LIVE DEMO

INSERT INTO files (title) VALUES ('whatever'); 
SELECT * FROM files WHERE id = SCOPE_IDENTITY();

Is the safest bet since there is a known issue with OUTPUT Clause conflict on tables with triggers. Makes this quite unreliable as even if your table doesn't currently have any triggers - someone adding one down the line will break your application. Time Bomb sort of behaviour.

See msdn article for deeper explanation:

http://blogs.msdn.com/b/sqlprogrammability/archive/2008/07/11/update-with-output-clause-triggers-and-sqlmoreresults.aspx

Updated answer that covers most cases

curl -H "Access-Control-Request-Method: GET" -H "Origin: http://localhost" --head http://www.example.com/

1. Replace http://www.example.com/ with URL you want to test.
2. If response includes Access-Control-Allow-* then your resource supports CORS.

Rationale for alternative answer

I google this question every now and then and the accepted answer is never what I need. First it prints response body which is a lot of text. Adding --head outputs only headers. Second when testing S3 URLs we need to provide additional header -H "Access-Control-Request-Method: GET".

Hope this will save time.

$(window).scroll( function() { 
 var scrolled_val = $(document).scrollTop().valueOf();
 alert(scrolled_val+ ' = scroll value');
});

This is another way of getting the value of scroll.

In my case following helped:

1. Save file as .xlsx (macro-free) - all macros would be erased while saving;
2. Open source file with macros and copy modules to the .xlsx file;
3. Save file as .xlsm - full recompile performed.

Afterwards everything started working normally. I had file with 200+ sheets and 50+ macros and posting comments in each module didn't help, but this solution worked.

What's the problem with using for loop inside, just like outside?

for (int j = i + 1; j < list.size(); ++j) {
    ...
}

In general, since Java 5, I used iterators only once or twice.

Use the shell globbing syntax:

grep pattern -r --include=\*.{cpp,h} rootdir

The syntax for --exclude is identical.

Note that the star is escaped with a backslash to prevent it from being expanded by the shell (quoting it, such as --include="*.{cpp,h}", would work just as well). Otherwise, if you had any files in the current working directory that matched the pattern, the command line would expand to something like grep pattern -r --include=foo.cpp --include=bar.h rootdir, which would only search files named foo.cpp and bar.h, which is quite likely not what you wanted.

These errors are usually generated from an ad blocking plugin, such as Adblock Plus. To test this use either a different browser or uninstall the ad blocking plugin (right clicking the extension by the URL bar and clicking "Remove from Chrome...").

There is an easier way to temporarily disable an extension. In Chrome, opening an Incognito tab will usually stop extensions running (unless you have specifically told Chrome which ones to run in Incognito).

By turning them into integers instead:

percent = (int(pyc) / int(tpy)) * 100;

In python 3, the input() function returns a string. Always. This is a change from Python 2; the raw_input() function was renamed to input().

I know it is an old question but still wanted to share how i achieved this. Assuming state in constructor looks like this:

  constructor(props) {
    super(props);

    this.state = {
      loading: false,
      user: {
        email: ""
      },
      organization: {
        name: ""
      }
    };

    this.handleChange = this.handleChange.bind(this);
  }

My handleChange function is like this:

  handleChange(e) {
    const names = e.target.name.split(".");
    const value = e.target.type === "checkbox" ? e.target.checked : e.target.value;
    this.setState((state) => {
      state[names[0]][names[1]] = value;
      return {[names[0]]: state[names[0]]};
    });
  }

And make sure you name inputs accordingly:

<input
   type="text"
   name="user.email"
   onChange={this.handleChange}
   value={this.state.user.firstName}
   placeholder="Email Address"
/>

<input
   type="text"
   name="organization.name"
   onChange={this.handleChange}
   value={this.state.organization.name}
   placeholder="Organization Name"
/>

Actually 3 of the options mentioned by other work.

1.

soup_object= BeautifulSoup(markup,"html.parser") #Python HTML parser

pip install lxml

soup_object= BeautifulSoup(markup,'lxml') # C dependent parser 

pip install html5lib

soup_object= BeautifulSoup(markup,'html5lib') # C dependent parser 

Why work harder than you have to? postForEntity accepts a simple Map object as input. The following works fine for me while writing tests for a given REST endpoint in Spring. I believe it's the simplest possible way of making a JSON POST request in Spring:

@Test
public void shouldLoginSuccessfully() {
  // 'restTemplate' below has been @Autowired prior to this
  Map map = new HashMap<String, String>();
  map.put("username", "bob123");
  map.put("password", "myP@ssw0rd");
  ResponseEntity<Void> resp = restTemplate.postForEntity(
      "http://localhost:8000/login",
      map,
      Void.class);
  assertThat(resp.getStatusCode()).isEqualTo(HttpStatus.OK);
}

When someone asks for "the number of processors/cores" there are 2 answers being requested. The number of "processors" would be the physical number installed in sockets on the machine.

The number of "cores" would be physical cores. Hyperthreaded (virtual) cores would not be included (at least to my mind). As someone who writes a lot of programs with thread pools, you really need to know the count of physical cores vs cores/hyperthreads. That said, you can modify the following script to get the answers that you need.

#!/bin/bash

MODEL=`cat /cpu/procinfo | grep "model name" | sort | uniq`
ALL=`cat /proc/cpuinfo | grep "bogo" | wc -l`
PHYSICAL=`cat /proc/cpuinfo | grep "physical id" | sort | uniq | wc -l`
CORES=`cat /proc/cpuinfo | grep "cpu cores" | sort | uniq | cut -d':' -f2`
PHY_CORES=$(($PHYSICAL * $CORES))
echo "Type $MODEL"
echo "Processors $PHYSICAL"
echo "Physical cores $PHY_CORES"
echo "Including hyperthreading cores $ALL"

The result on a machine with 2 model Xeon X5650 physical processors each with 6 physical cores that also support hyperthreading:

Type model name : Intel(R) Xeon(R) CPU           X5650  @ 2.67GHz
Processors 2
Physical cores 12
Including hyperthreading cores 24

On a machine with 2 mdeol Xeon E5472 processors each with 4 physical cores that doesn't support hyperthreading

Type model name : Intel(R) Xeon(R) CPU           E5472  @ 3.00GHz
Processors 2
Physical cores 8
Including hyperthreading cores 8

I am using this and got I worked

"query": {
        "query_string" : {
            "query" : "*test*",
            "fields" : ["field1","field2"],
            "analyze_wildcard" : true,
            "allow_leading_wildcard": true
        }
    }

If you use Sqlite's REGEXP support ( see the answer at Problem with regexp python and sqlite for how to do that ) , then you can do it easily in one clause:

SELECT word FROM table WHERE word NOT REGEXP '[abc]';

Interesting one. I love collecting quotes about quotes handling in cmd/command.

Your particular scripts gets fixed by using %1 instead of "%1" !!!

By adding an 'echo on' ( or getting rid of an echo off ), you could have easily found that out.

For nodemon: not found command I tried with many links but was not working then i tried with the below steps it worked fine.

Follow this step it worked for me.

step1 : sudo su

step2 : npm install -g nodemon --save-dev

It is working fine.

You can use also "void*" (void pointer) to send an address to the function.

typedef struct pstring_t {
    char * chars;
    int(*length)(void*);
} PString;

int length(void* self) {
    return strlen(((PString*)self)->chars);
}

PString initializeString() {
    PString str;
    str.length = &length;
    return str;
}

int main()
{
    PString p = initializeString();

    p.chars = "Hello";

    printf("Length: %i\n", p.length(&p));

    return 0;
}

Output:

Length: 5

document["pic1"].src = searchPic.src

should work

Aside from @see, a more general way of refering to another class and possibly method of that class is {@link somepackage.SomeClass#someMethod(paramTypes)}. This has the benefit of being usable in the middle of a javadoc description.

From the javadoc documentation (description of the @link tag):

This tag is very simliar to @see – both require the same references and accept exactly the same syntax for package.class#member and label. The main difference is that {@link} generates an in-line link rather than placing the link in the "See Also" section. Also, the {@link} tag begins and ends with curly braces to separate it from the rest of the in-line text.

In C++, variable length arrays are not legal. G++ allows this as an "extension" (because C allows it), so in G++ (without being -pedantic about following the C++ standard), you can do:

int n = 10;
double a[n]; // Legal in g++ (with extensions), illegal in proper C++

If you want a "variable length array" (better called a "dynamically sized array" in C++, since proper variable length arrays aren't allowed), you either have to dynamically allocate memory yourself:

int n = 10;
double* a = new double[n]; // Don't forget to delete [] a; when you're done!

Or, better yet, use a standard container:

int n = 10;
std::vector<double> a(n); // Don't forget to #include <vector>

If you still want a proper array, you can use a constant, not a variable, when creating it:

const int n = 10;
double a[n]; // now valid, since n isn't a variable (it's a compile time constant)

Similarly, if you want to get the size from a function in C++11, you can use a constexpr:

constexpr int n()
{
    return 10;
}

double a[n()]; // n() is a compile time constant expression

There are many street address parsers. They come in two basic flavors - ones that have databases of place names and street names, and ones that don't.

A regular expression street address parser can get up to about a 95% success rate without much trouble. Then you start hitting the unusual cases. The Perl one in CPAN, "Geo::StreetAddress::US", is about that good. There are Python and Javascript ports of that, all open source. I have an improved version in Python which moves the success rate up slightly by handling more cases. To get the last 3% right, though, you need databases to help with disambiguation.

A database with 3-digit ZIP codes and US state names and abbreviations is a big help. When a parser sees a consistent postal code and state name, it can start to lock on to the format. This works very well for the US and UK.

Proper street address parsing starts from the end and works backwards. That's how the USPS systems do it. Addresses are least ambiguous at the end, where country names, city names, and postal codes are relatively easy to recognize. Street names can usually be isolated. Locations on streets are the most complex to parse; there you encounter things such as "Fifth Floor" and "Staples Pavillion". That's when a database is a big help.

tick_params is very useful for setting tick properties. Labels can be moved to the top with:

    ax.tick_params(labelbottom=False,labeltop=True)

If you really need to, you could serialize an enum as a String, using name() and valueOf(String), as follows:

 class Example implements Parcelable { 
   public enum Foo { BAR, BAZ }

   public Foo fooValue;

   public void writeToParcel(Parcel dest, int flags) {
      parcel.writeString(fooValue == null ? null : fooValue.name());
   }

   public static final Creator<Example> CREATOR = new Creator<Example>() {
     public Example createFromParcel(Parcel source) {        
       Example e = new Example();
       String s = source.readString(); 
       if (s != null) e.fooValue = Foo.valueOf(s);
       return e;
     }
   }
 }

This obviously doesn't work if your enums have mutable state (which they shouldn't, really).

What I did to add to get the files within a symlink into Git (I didn't use a symlink but):

sudo mount --bind SOURCEDIRECTORY TARGETDIRECTORY

Do this command in the Git-managed directory. TARGETDIRECTORY has to be created before the SOURCEDIRECTORY is mounted into it.

It works fine on Linux, but not on OS X! That trick helped me with Subversion too. I use it to include files from an Dropbox account, where a webdesigner does his/her stuff.

CSS File

.over {
    display : block;
    margin : 0px auto;

Try this..

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="#CABBBBBB"/>
            <corners android:radius="2dp" />
        </shape>
    </item>

    <item
        android:left="0dp"
        android:right="0dp"
        android:top="0dp"
        android:bottom="2dp">
        <shape android:shape="rectangle">
            <solid android:color="@android:color/white"/>
            <corners android:radius="2dp" />
        </shape>
    </item>
</layer-list>

~mypage.aspx?strID=x&strName=y&strDate=z

If both Column are numeric Then Use This code

Just Cast Column As Varchar(Size)

Example:

Select (Cast(Col1 as Varchar(20)) + '-' + Cast(Col2 as Varchar(20))) As Col3 from Table

This code will first store the original selection on each dropdown. Then if the user changes the selection it will reset the dropdown to its original selection.

http://jsfiddle.net/4aHcD/22/

//store the original selection
$("select :selected").each(function(){
    $(this).parent().data("default", this);
});

//change the selction back to the original
$("select").change(function(e) {
    $($(this).data("default")).prop("selected", true);
});

One simple way is using set() built-in function:

iter = zip([1,2,3],['a','b','c'])
print(len(set(iter)) # set(iter) = {(1, 'a'), (2, 'b'), (3, 'c')}
Out[45]: 3

or

iter = range(1,10)
print(len(set(iter)) # set(iter) = {1, 2, 3, 4, 5, 6, 7, 8, 9}
Out[47]: 9

$('.button1').click(function() {
   window.location = "www.example.com/index.php?id=" + this.id;
});

First of all using window.location is better as according to specification document.location value was read-only and might cause you headaches in older/different browsers. Check notes @MDC DOM document.location page

And for the second - using attr jQuery method to get id is a bad practice - you should use direct native DOM accessor this.id as the value assigned to this is normal DOM element.

The answer is correct, however the perl documentation on how to handle deadlocks is a bit sparse and perhaps confusing with PrintError, RaiseError and HandleError options. It seems that rather than going with HandleError, use on Print and Raise and then use something like Try:Tiny to wrap your code and check for errors. The below code gives an example where the db code is inside a while loop that will re-execute an errored sql statement every 3 seconds. The catch block gets $_ which is the specific err message. I pass this to a handler function "dbi_err_handler" which checks $_ against a host of errors and returns 1 if the code should continue (thereby breaking the loop) or 0 if its a deadlock and should be retried...

$sth = $dbh->prepare($strsql);
my $db_res=0;
while($db_res==0)
{
   $db_res=1;
   try{$sth->execute($param1,$param2);}
   catch
   {
       print "caught $_ in insertion to hd_item_upc for upc $upc\n";
       $db_res=dbi_err_handler($_); 
       if($db_res==0){sleep 3;}
   }
}

dbi_err_handler should have at least the following:

sub dbi_err_handler
{
    my($message) = @_;
    if($message=~ m/DBD::mysql::st execute failed: Deadlock found when trying to get lock; try restarting transaction/)
    {
       $caught=1;
       $retval=0; # we'll check this value and sleep/re-execute if necessary
    }
    return $retval;
}

You should include other errors you wish to handle and set $retval depending on whether you'd like to re-execute or continue..

Hope this helps someone -

I have something like this :

public static boolean deleteDirectory(File directory) {
    if(directory.exists()){
        File[] files = directory.listFiles();
        if(null!=files){
            for(int i=0; i<files.length; i++) {
                if(files[i].isDirectory()) {
                    deleteDirectory(files[i]);
                }
                else {
                    files[i].delete();
                }
            }
        }
    }
    return(directory.delete());
}

spark-submit \

  --class org.apache.spark.examples.SparkPi \

  --master yarn \

  --deploy-mode cluster \  # can be client for client mode

  --executor-memory 2G \

  --num-executors 5 \

  /path/to/examples.jar \

  1000

If you need rock solid integrity, have both tables in one database, and use an FK constraint. If your parent table is in another database, nothing prevents anyone from restoring that parent database from an old backup, and then you have orphans.

This is why FK between databases is not supported.

A nice Java 7+ answer from Benoit Blanchon can be found here:

With Java 7, you can use Files.createDirectories().

For instance:

Files.createDirectories(Paths.get("/path/to/directory"));

New-style classes inherit from object, or from another new style class:

class SomeObject(object):
    pass

class SubObject(SomeObject):
    pass

Old-style classes don't:

class SomeObject:
    pass

This only applies to Python 2 - in Python 3 all the above will create new-style classes.

See 9. Classes (Python tutorial), NewClassVsClassicClass and What is the difference between old style and new style classes in Python? for details.

Open your activity_main.xml . Switch to Design view if you are in text view. Look for the android version,with the android robo icon. Change the android version. Problem solved.

You can also use parameter expansion:

$ filename=foo.txt
$ echo "${filename%.*}"
foo

Just be aware that if there is no file extension, it will look further back for dots, e.g.

• If the filename only starts with a dot (e.g. .bashrc) it will remove the whole filename.
• If there's a dot only in the path (e.g. path.to/myfile or ./myfile), then it will trim inside the path.

If all vectors have equal size, create a matrix and plot it. Each column is plotted with a different color automatically Then you can use legend to indicate columns:

data = randn(100, 5);

figure;
plot(data);

legend(cellstr(num2str((1:size(data,2))')))

Or, if you have a cell with kernels names, use

legend(names)

select CASE 
when exists (SELECT U.USERID,U.USERNAME,U.PASSWORDHASH
FROM  TBLUSERS U WHERE U.USERID =U.USERID 
AND U.PASSWORDHASH=U.PASSWORDHASH) 
then 'OLD PASSWORD EXISTS' 
else 'OLD PASSWORD NOT EXISTS' 
end as OUTPUT
from DUAL;

1. Everything is encoded by default!!! This is pretty huge.

2. Declarative helpers can be compiled so you don't need to do anything special to share them. I think they will replace .ascx controls to some extent. You have to jump through some hoops to use an .ascx control in another project.

3. You can make a section required which is nice.

if (row.Columns.Contains("US_OTHERFRIEND"))

Solution for multiple upload

I tweaked two previous answers to include multiple uploads. In this way the label shows the file name, if only one is selected, or x files in the opposite case.

<label class="btn btn-primary" for="my-file-selector">
    <input id="my-file-selector" type="file" multiple="multiple" style="display:none"
        onchange="$('#upload-file-info').html(
            (this.files.length > 1) ? this.files.length + ' files' : this.files[0].name)">                     
    Files&hellip;
</label>
<span class='label label-info' id="upload-file-info"></span>

It may also apply to change the button text and class.

<label class="btn btn-primary" for="multfile">
    <input id="multfile" type="file" multiple="multiple" style="display:none"
        onchange="$('#multfile-label').html(
            (this.files.length == 1) ? this.files[0].name : this.files.length + ' files');
            $(this).parent().addClass('btn-success')">
    <span id="multfile-label">Files&hellip;</span>
</label>

as HTMLInputElement works for me

The inconvenience of typing 10 < x && x < 20 is minimal compared to the increase in language complexity if one would allow 10 < x < 20, so the designers of the Java language decided against supporting it.

This error is common when the source table contains a TEXT column and the target is anything other than a TEXT column. It can be a real time-eater if you have not encountered (or forgot!) this before.

Convert the text column to string and set the error condition on truncation to ignore. this will usually serve as a solution for this error.

Or you can exploit the fact that Collections.sort() (or Arrays.sort()) is stable (it doesn't reorder elements that are equal) and use a Comparator to sort by age first and then another one to sort by name.

In this specific case this isn't a very good idea but if you have to be able to change the sort order in runtime, it might be useful.

Without For loop:

Dim newColumn As New Data.DataColumn("Foo", GetType(System.String))     
newColumn.DefaultValue = "Your DropDownList value" 
table.Columns.Add(newColumn) 

C#:

System.Data.DataColumn newColumn = new System.Data.DataColumn("Foo", typeof(System.String));
newColumn.DefaultValue = "Your DropDownList value";
table.Columns.Add(newColumn);

With modern browsers, you can set the textContent property, see Node.textContent:

var span = document.getElementById("myspan");
span.textContent = "some text";

i'd rather go to menu source em click on "Cleanup Document"

This might work for you...

<script type="text/javascript">
function image(img) {
    var src = img.src;
    window.open(src);
}
</script>
<img src="pond1.jpg" height="150" size="150" alt="Johnson Pond" onclick="image(this)">

Please change only the name of the function; no other change is required

<script>
    function totalbandwidthresult() {
        alert("fdf");
        var fps = Number(document.calculator.fps.value);
        var bitrate = Number(document.calculator.bitrate.value);
        var numberofcameras = Number(document.calculator.numberofcameras.value);
        var encoding = document.calculator.encoding.value;
        if (encoding = "mjpeg") {
            storage = bitrate * fps;
        } else {
            storage = bitrate;
        }

        totalbandwidth = (numberofcameras * storage) / 1000;
        alert(totalbandwidth);
        document.calculator.totalbandwidthresult.value = totalbandwidth;
    }
</script>

<form name="calculator" class="formtable">
    <div class="formrow">
        <label for="rcname">RC Name</label>
        <input type="text" name="rcname">
    </div>
    <div class="formrow">
        <label for="fps">FPS</label>
        <input type="text" name="fps">
    </div>
    <div class="formrow">
        <label for="bitrate">Bitrate</label>
        <input type="text" name="bitrate">
    </div>
    <div class="formrow">
        <label for="numberofcameras">Number of Cameras</label>
        <input type="text" name="numberofcameras">
    </div>
    <div class="formrow">
        <label for="encoding">Encoding</label>
        <select name="encoding" id="encodingoptions">
            <option value="h264">H.264</option>
            <option value="mjpeg">MJPEG</option>
            <option value="mpeg4">MPEG4</option>
        </select>
    </div>Total Storage:
    <input type="text" name="totalstorage">Total Bandwidth:
    <input type="text" name="totalbandwidth">
    <input type="button" value="totalbandwidthresult" onclick="totalbandwidthresult();">
</form>

BEGIN
  FOR r IN (select sid,serial# from v$session where username='user')
  LOOP
      EXECUTE IMMEDIATE 'alter system kill session ''' || r.sid  || ',' 
        || r.serial# || ''' immediate';
  END LOOP;
END;

This should work - I just changed your script to add the immediate keyword. As the previous answers pointed out, the kill session only marks the sessions for killing; it does not do so immediately but later when convenient.

From your question, it seemed you are expecting to see the result immediately. So immediate keyword is used to force this.

Try this:

0,30 * * * * your command goes here

According to the official Mac OS X crontab(5) manpage, the / syntax is supported. Thus, to figure out why it wasn't working for you, you'll need to look at the logs for cron. In those logs, you should find a clear failure message.

Note: Mac OS X appears to use Vixie Cron, the same as Linux and the BSDs.

You are getting this exception because your AWS SDK is unable to load your credentials. What you should do is goto Preferences then goto AWS and add your secret key and access key. So that your project can retrieve both keys.

I was having the same issue in asp.NET razor C#

I had a ComboBox filled with titles from an EventMessage, and I wanted to show the Content of this message with its selected value to show it in a label or TextField or any other Control...

My ComboBox was filled like this:

 @Html.DropDownList("EventBerichten", new SelectList(ViewBag.EventBerichten, "EventBerichtenID", "Titel"), new { @class = "form-control", onchange = "$(this.form).submit();" })

In my EventController I had a function to go to the page, in which I wanted to show my ComboBox (which is of a different model type, so I had to use a partial view)?

The function to get from index to page in which to load the partial view:

  public ActionResult EventDetail(int id)
        {

            Event eventOrg = db.Event.Include(s => s.Files).SingleOrDefault(s => s.EventID == id);
            //  EventOrg eventOrg = db.EventOrgs.Find(id);
            if (eventOrg == null)
            {

                return HttpNotFound();
            }
            ViewBag.EventBerichten = GetEventBerichtenLijst(id);
            ViewBag.eventOrg = eventOrg;
            return View(eventOrg);
        }

The function for the partial view is here:

 public PartialViewResult InhoudByIdPartial(int id)
        {
            return PartialView(
                db.EventBericht.Where(r => r.EventID == id).ToList());

        }

The function to fill EventBerichten:

        public List<EventBerichten> GetEventBerichtenLijst(int id)
        {
            var eventLijst = db.EventBericht.ToList();
            var berLijst = new List<EventBerichten>();
            foreach (var ber in eventLijst)
            {
                if (ber.EventID == id )
                {
                    berLijst.Add(ber);
                }
            }
            return berLijst;
        }

The partialView Model looks like this:

@model  IEnumerable<STUVF_back_end.Models.EventBerichten>

<table>
    <tr>
        <th>
            EventID
        </th>
        <th>
            Titel
        </th>
        <th>
            Inhoud
        </th>
        <th>
            BerichtDatum
        </th>
        <th>
            BerichtTijd
        </th>

    </tr>

    @foreach (var item in Model)
    {
        <tr>
            <td>
                @Html.DisplayFor(modelItem => item.EventID)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Titel)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.Inhoud)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.BerichtDatum)
            </td>
            <td>
                @Html.DisplayFor(modelItem => item.BerichtTijd)
            </td>

        </tr>
    }
</table>

VIEUW: This is the script used to get my output in the view

<script type="text/javascript">
    $(document).ready(function () {
        $("#EventBerichten").change(function () {
            $("#log").ajaxError(function (event, jqxhr, settings, exception) {
                alert(exception);
            });

            var BerichtSelected = $("select option:selected").first().text();
            $.get('@Url.Action("InhoudByIdPartial")',
                { EventBerichtID: BerichtSelected }, function (data) {
                    $("#target").html(data);
                });
        });
    });
            </script>
@{
                    Html.RenderAction("InhoudByIdPartial", Model.EventID);
                } 

<fieldset>
                <legend>Berichten over dit Evenement</legend>
                <div>
                    @Html.DropDownList("EventBerichten", new SelectList(ViewBag.EventBerichten, "EventBerichtenID", "Titel"), new { @class = "form-control", onchange = "$(this.form).submit();" })
                </div>

                <br />
                <div id="target">

                </div>
                <div id="log">

                </div>
            </fieldset>

This is a slight variation, but PJW's solution didn't quite work for me:

java -version 2>&1 | head -n 1 | cut -d'"' -f2

just cut the string on the delimiter " (double quotes) and get the second field.

I found it in http://www.baeldung.com/hikaricp and it works.

Your pom.xml

<dependency>
            <groupId>com.zaxxer</groupId>
            <artifactId>HikariCP</artifactId>
            <version>2.6.3</version>
        </dependency>

Your data.xml

<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
    <property name="driverClassName" value="${jdbc.driverClassName}"/>
    <property name="jdbcUrl" value="${jdbc.databaseurl}"/>
    <property name="username" value="${jdbc.username}"/>
    <property name="password" value="${jdbc.password}"/>
</bean>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"
      p:dataSource-ref="dataSource"
/>

Your jdbc.properties

jdbc.driverClassName=org.postgresql.Driver
jdbc.dialect=org.hibernate.dialect.PostgreSQL94Dialect
jdbc.databaseurl=jdbc:postgresql://localhost:5432/dev_db
jdbc.username=dev
jdbc.password=dev

Here, check out this function:

function seo_friendly_url($string){
    $string = str_replace(array('[\', \']'), '', $string);
    $string = preg_replace('/\[.*\]/U', '', $string);
    $string = preg_replace('/&(amp;)?#?[a-z0-9]+;/i', '-', $string);
    $string = htmlentities($string, ENT_COMPAT, 'utf-8');
    $string = preg_replace('/&([a-z])(acute|uml|circ|grave|ring|cedil|slash|tilde|caron|lig|quot|rsquo);/i', '\\1', $string );
    $string = preg_replace(array('/[^a-z0-9]/i', '/[-]+/') , '-', $string);
    return strtolower(trim($string, '-'));
}

Instead of catching the error, wouldn't it be possible to test in or before the myplotfunction() function first if the error will occur (i.e. if the breaks are unique) and only plot it for those cases where it won't appear?!

Swift version

Only trims spaces at the end of the String:

private func removingSpacesAtTheEndOfAString(var str: String) -> String {
    var i: Int = countElements(str) - 1, j: Int = i

    while(i >= 0 && str[advance(str.startIndex, i)] == " ") {
        --i
    }

    return str.substringWithRange(Range<String.Index>(start: str.startIndex, end: advance(str.endIndex, -(j - i))))
}

Trims spaces on both sides of the String:

var str: String = " Yolo "
var trimmedStr: String = str.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())

You can use this code for number validation:

if (!preg_match("/^[0-9]+$/i", $phone)) {
        $errorMSG = 'Invalid Number!';
        $error    = 1;
    }

The same as Evo's, but with arbitrary number of strings to compare:

def common_start(*strings):
    """ Returns the longest common substring
        from the beginning of the `strings`
    """
    def _iter():
        for z in zip(*strings):
            if z.count(z[0]) == len(z):  # check all elements in `z` are the same
                yield z[0]
            else:
                return

    return ''.join(_iter())

Session State contains information that is pertaining to a specific session (by a particular client/browser/machine) with the server. It's a way to track what the user is doing on the site.. across multiple pages...amid the statelessness of the Web. e.g. the contents of a particular user's shopping cart is session data. Cookies can be used for session state.
View State on the other hand is information specific to particular web page. It is stored in a hidden field so that it isn't visible to the user. It is used to maintain the user's illusion that the page remembers what he did on it the last time - dont give him a clean page every time he posts back. Check this page for more.

For anyone else looking to do what the original poster is asking, please consider to use fragments instead the way Kevin said. Here is an excellent tutorial on how to do that:

https://github.com/codepath/android_guides/wiki/Fragment-Navigation-Drawer

If you choose to instead use activities instead of fragments you are going to run into the problem of the nav drawer being re-created every time you navigate to a new activity. This results in an ugly/slow rendering of the nav drawer each time.

SVGs are different than bitmap images such as PNG etc. If an SVG has a viewBox - as yours appear to - then it will be scaled to fit it's defined viewport. It won't directly scale like a PNG would.

So increasing the width of the img won't make the icons any taller if the height is restricted. You'll just end up with the img horizontally centred in a wider box.

I believe your problem is that your SVGs have a fixed height defined in them. Open up the SVG files and make sure they either:

1. have no width and height defined, or
2. have width and height both set to "100%".

That should solve your problem. If it doesn't, post one of your SVGs into your question so we can see how it is defined.

Your syntax is pretty screwy.

Change this:

input:not(disabled)not:[type="submit"]:focus{

to:

input:not(:disabled):not([type="submit"]):focus{

Seems that many people don't realize :enabled and :disabled are valid CSS selectors...

The solution mentioned in ".gitignore file not ignoring" is a bit extreme, but should work:

# rm all files
git rm -r --cached .
# add all files as per new .gitignore
git add .
# now, commit for new .gitignore to apply
git commit -m ".gitignore is now working"

(make sure to commit first your changes you want to keep, to avoid any incident as jball037 comments below.
The --cached option will keep your files untouched on your disk though.)

You also have other more fine-grained solution in the blog post "Making Git ignore already-tracked files":

git rm --cached `git ls-files -i --exclude-standard`

Bassim suggests in his edit:

Files with space in their paths

In case you get an error message like fatal: path spec '...' did not match any files, there might be files with spaces in their path.

You can remove all other files with option --ignore-unmatch:

git rm --cached --ignore-unmatch `git ls-files -i --exclude-standard`

but unmatched files will remain in your repository and will have to be removed explicitly by enclosing their path with double quotes:

git rm --cached "<path.to.remaining.file>"

import math
from itertools import izip

def dot_product(v1, v2):
    return sum(map(lambda x: x[0] * x[1], izip(v1, v2)))

def cosine_measure(v1, v2):
    prod = dot_product(v1, v2)
    len1 = math.sqrt(dot_product(v1, v1))
    len2 = math.sqrt(dot_product(v2, v2))
    return prod / (len1 * len2)

You can round it after computing:

cosine = format(round(cosine_measure(v1, v2), 3))

If you want it really short, you can use this one-liner:

from math import sqrt
from itertools import izip

def cosine_measure(v1, v2):
    return (lambda (x, y, z): x / sqrt(y * z))(reduce(lambda x, y: (x[0] + y[0] * y[1], x[1] + y[0]**2, x[2] + y[1]**2), izip(v1, v2), (0, 0, 0)))

if you (or, someone here) are free to use lodash utility library, it has a maxBy function which would be very handy in your case.

hence you can use as such:

_.maxBy(jsonSlice, 'y');

List myList = new ArrayList();
Collections.addAll(myList, filesOrig); 

You may also want to look at some of the more specialised types, like ListIterator, NavigableSet and (if you're interested in maps) NavigableMap.