I don't think there is a good analogy that could highlight the two important characteristics as opposed to an array: 1. efficient to insert after current item and 2. inefficient to find a specific item by index.

There's nothing like that because normally people don't deal with very large number of items where you need to insert or locate specific items. For example, if you have a bag of sand, that would be hundreds of millions of grains, but you don't need to locate a specific grain, and the order of grains isn't important.

When you deal with smaller collections, you can locate the needed item visually, or, in case of books in a library, you will have a dictinary-like organization.

The closest analogy is having a blind man who goes through linked items like links of chain, beads on a necklace, train cars, etc. He may be looking for specific item or needing to insert an item after current one. It might be good to add that the blind man can go through them very quickly, e.g. one million beads per second, but can only feel one link at a time, and cannot see the whole chain or part of it.

Note that this analogy is similar to a double-linked list, I can't think of a similar analogy with singly linked one, because having a physical connection implies ability to backtrack.

Use This chunk of code..

.card::-webkit-scrollbar {
  display: none;
}

All of the answers didn't work for me, I checked the playlist URL and seen that playlist parameter changed to list! So it should be:

&loop=1&list=PLvNxGp1V1dOwpDBl7L3AJIlkKYdNDKUEs

So here is the full code I use make a clean, looping, autoplay video:

<iframe width="100%" height="425" src="https://www.youtube.com/embed/MavEpJETfgI?autoplay=1&showinfo=0&loop=1&list=PLvNxGp1V1dOwpDBl7L3AJIlkKYdNDKUEs&rel=0" frameborder="0" allowfullscreen></iframe>

Use VerticalScrollBar with the TextBlock control in WPF. In your code behind, add the following code:

In the constructor, define an event handler for the scrollbar:

scrollBar1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(scrollBar1_ValueChanged);
scrollBar1.Minimum = 0;
scrollBar1.Maximum = 1;
scrollBar1.SmallChange = 0.1;

Then in the event handler, add:

void scrollBar1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
    FteHolderText.Text = scrollBar1.Value.ToString();
}

Here is the original snippet from my code... make necessary changes.. :)

public NewProjectPlan()
{
    InitializeComponent();

    this.Loaded += new RoutedEventHandler(NewProjectPlan_Loaded);

    scrollBar1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(scrollBar1_ValueChanged);
    scrollBar1.Minimum = 0;
    scrollBar1.Maximum = 1;
    scrollBar1.SmallChange = 0.1;

    // etc...
}

void scrollBar1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
{
    FteHolderText.Text = scrollBar1.Value.ToString();
}

A safer and more direct way, assuming:

• the text field delegates are set to your view controller
• all of the text fields are subviews of the same view
• the text fields have tags in the order you want to progress (e.g., textField2.tag = 2, textField3.tag = 3, etc.)
• moving to the next text field will happen when you tap the return button on the keyboard (you can change this to next, done, etc.)
• you want the keyboard to dismiss after the last text field

Swift 4.1:

extension ViewController: UITextFieldDelegate {
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        let nextTag = textField.tag + 1
        guard let nextTextField = textField.superview?.viewWithTag(nextTag) else {
            textField.resignFirstResponder()
            return false
        }

    nextTextField.becomeFirstResponder()

    return false

    }
}

There are 2 methods technically same

1. First put your cursor on the word and press F2. Replace your word and press Enter.

2. First put your cursor on the word and left click it. Click "Rename Symbol" option. Replace your word and press Enter.

Like the other answer says, in the left hand side select Products and add product. Then select Facbook Login.

I then added http://localhost:3000/ to the field 'Valid OAuth redirect URIs', and then everything worked.

Could try the following function:

1. transform numeric values into factor
2. use summary() to gain the frequency table
3. return mode the index whose frequency is the largest
4. transform factor back to numeric even there are more than 1 mode, this function works well!

mode <- function(x){
  y <- as.factor(x)
  freq <- summary(y)
  mode <- names(freq)[freq[names(freq)] == max(freq)]
  as.numeric(mode)
}

@InvisibleDev - to get this working on a mac trying using this:

{
    "version": "0.1.0",
    "command": "Chrome",
    "osx": {
        "command": "/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
    },
    "args": [
        "${file}"
    ]
}

If you have chrome already open, it will launch your html file in a new tab.

Here is a method that works for me. NOTE: There is some code within this method that may not apply to you, so try and ignore it. For example "logStandardOut(...), git-bash, etc".

private String exeShellCommand(String doCommand, String inDir, boolean ignoreErrors) {
logStandardOut("> %s", doCommand);

ProcessBuilder builder = new ProcessBuilder();
StringBuilder stdOut = new StringBuilder();
StringBuilder stdErr = new StringBuilder();

boolean isWindows = System.getProperty("os.name").toLowerCase().startsWith("windows");
if (isWindows) {
  String gitBashPathForWindows = "C:\\Program Files\\Git\\bin\\bash";
  builder.command(gitBashPathForWindows, "-c", doCommand);
} else {
  builder.command("bash", "-c", doCommand);
}

//Do we need to change dirs?
if (inDir != null) {
  builder.directory(new File(inDir));
}

//Execute it
Process process = null;
BufferedReader brStdOut;
BufferedReader brStdErr;
try {
  //Start the command line process
  process = builder.start();

  //This hangs on a large file
  // https://stackoverflow.com/questions/5483830/process-waitfor-never-returns
  //exitCode = process.waitFor();

  //This will have both StdIn and StdErr
  brStdOut = new BufferedReader(new InputStreamReader(process.getInputStream()));
  brStdErr = new BufferedReader(new InputStreamReader(process.getErrorStream()));

  //Get the process output
  String line = null;
  String newLineCharacter = System.getProperty("line.separator");

  while (process.isAlive()) {
    //Read the stdOut
    while ((line = brStdOut.readLine()) != null) {
      stdOut.append(line + newLineCharacter);
    }

    //Read the stdErr
    while ((line = brStdErr.readLine()) != null) {
      stdErr.append(line + newLineCharacter);
    }

    //Nothing else to read, lets pause for a bit before trying again
    process.waitFor(100, TimeUnit.MILLISECONDS);
  }

  //Read anything left, after the process exited
  while ((line = brStdOut.readLine()) != null) {
    stdOut.append(line + newLineCharacter);
  }

  //Read anything left, after the process exited
  while ((line = brStdErr.readLine()) != null) {
    stdErr.append(line + newLineCharacter);
  }

  //cleanup
  if (brStdOut != null) {
    brStdOut.close();
  }

  if (brStdErr != null) {
    brStdOut.close();
  }

  //Log non-zero exit values
  if (!ignoreErrors && process.exitValue() != 0) {
    String exMsg = String.format("%s%nprocess.exitValue=%s", stdErr, process.exitValue());
    throw new ExecuteCommandException(exMsg);
  }

} catch (ExecuteCommandException e) {
  throw e;
} catch (Exception e) {
  throw new ExecuteCommandException(stdErr.toString(), e);
} finally {
  //Log the results
  logStandardOut(stdOut.toString());
  logStandardError(stdErr.toString());
}

return stdOut.toString();

}

Sometimes the command that cron needs to run is in a directory where cron has no access, typically on systems where users' home directories' permissions are 700 and the command is in that directory.

Another oh-so-easy mistake, which was the source of the problem for me: I’d written my own shouldComponentUpdate method, which didn’t check the new state change I’d added.

As stated before you can use -p to pass the password to the server.

But I recommend this:

mysql -h "hostaddress" -u "username" -p "database-name" < "sqlfile.sql"

Notice the password is not there. It would then prompt your for the password. I would THEN type it in. So that your password doesn't get logged into the servers command line history.

This is a basic security measure.

If security is not a concern, I would just temporarily remove the password from the database user. Then after the import - re-add it.

This way any other accounts you may have that share the same password would not be compromised.

It also appears that in your shell script you are not waiting/checking to see if the file you are trying to import actually exists. The perl script may not be finished yet.

SimpleDateFormat format1 = new SimpleDateFormat("yyyy/MM/dd");
System.out.println(format1.format(date));

You may find an answer with this example : errorbar_demo_features.py

"""
Demo of errorbar function with different ways of specifying error bars.

Errors can be specified as a constant value (as shown in `errorbar_demo.py`),
or as demonstrated in this example, they can be specified by an N x 1 or 2 x N,
where N is the number of data points.

N x 1:
    Error varies for each point, but the error values are symmetric (i.e. the
    lower and upper values are equal).

2 x N:
    Error varies for each point, and the lower and upper limits (in that order)
    are different (asymmetric case)

In addition, this example demonstrates how to use log scale with errorbar.
"""
import numpy as np
import matplotlib.pyplot as plt

# example data
x = np.arange(0.1, 4, 0.5)
y = np.exp(-x)
# example error bar values that vary with x-position
error = 0.1 + 0.2 * x
# error bar values w/ different -/+ errors
lower_error = 0.4 * error
upper_error = error
asymmetric_error = [lower_error, upper_error]

fig, (ax0, ax1) = plt.subplots(nrows=2, sharex=True)
ax0.errorbar(x, y, yerr=error, fmt='-o')
ax0.set_title('variable, symmetric error')

ax1.errorbar(x, y, xerr=asymmetric_error, fmt='o')
ax1.set_title('variable, asymmetric error')
ax1.set_yscale('log')
plt.show()

Which plots this:

Use animation-fill-mode: forwards;

animation-fill-mode: forwards;

The element will retain the style values that is set by the last keyframe (depends on animation-direction and animation-iteration-count).

Note: The @keyframes rule is not supported in Internet Explorer 9 and earlier versions.

Working example

div {_x000D_
  width: 100px;_x000D_
  height: 100px;_x000D_
  background: red;_x000D_
  position :relative;_x000D_
  -webkit-animation: mymove 3ss forwards; /* Safari 4.0 - 8.0 */_x000D_
  animation: bubble 3s forwards;_x000D_
  /* animation-name: bubble; _x000D_
  animation-duration: 3s;_x000D_
  animation-fill-mode: forwards; */_x000D_
}_x000D_
_x000D_
/* Safari */_x000D_
@-webkit-keyframes bubble  {_x000D_
  0%   { transform:scale(0.5); opacity:0.0; left:0}_x000D_
    50%  { transform:scale(1.2); opacity:0.5; left:100px}_x000D_
    100% { transform:scale(1.0); opacity:1.0; left:200px}_x000D_
}_x000D_
_x000D_
/* Standard syntax */_x000D_
@keyframes bubble  {_x000D_
   0%   { transform:scale(0.5); opacity:0.0; left:0}_x000D_
    50%  { transform:scale(1.2); opacity:0.5; left:100px}_x000D_
    100% { transform:scale(1.0); opacity:1.0; left:200px}_x000D_
}

<h1>The keyframes </h1>_x000D_
<div></div>

Based on my experience, the numpy docstring conventions (PEP257 superset) are the most widely-spread followed conventions that are also supported by tools, such as Sphinx.

One example:

Parameters
----------
x : type
    Description of parameter `x`.

Security Warning: md5(uniqid(rand(), TRUE)) is not a secure way to generate random numbers. See this answer for more information and a solution that leverages a cryptographically secure random number generator.

Looks like you need an else with your if.

if (!isset($_SESSION['token'])) {
    $token = md5(uniqid(rand(), TRUE));
    $_SESSION['token'] = $token;
    $_SESSION['token_time'] = time();
}
else
{
    $token = $_SESSION['token'];
}

I don't understand how other answers don't answer the original question about how to use PHP (not very consistent with the title).
PHP files or PHP code embedded in HTML code start always with the tag <?php and ends with ?>.

You can embed PHP code inside HTML like this (you have to save the file using .php extension to let PHP server recognize and process it, ie: index.php):

<body>
   <?php echo "<div>Hello World!</div>" ?>
</body>

or you can use a whole php file, ie: test.php:

<?php    
$mycontent = "Hello World!";
echo "<div>$mycontent</div>";
?> // is not mandatory to put this at the end of the file

there's no document.ready in PHP, the scripts are processed when they are invoked from the browser or from another PHP file.

Try to use this one:

::selection {
    background: transparent;
}

And if you wish to specify not select inside a specific element, just put the element class or id before the selection rule, such as:

.ClassNAME::selection {
    background: transparent;
}
#IdNAME::selection {
    background: transparent;
}

Check there is no postmaster.pid in your postgres directory, probably /usr/local/var/postgres/

remove this and start server.

Check - https://github.com/mperham/lunchy is a great wrapper for launchctl.

The cex parameter will do that for you.

a <- c(3, 2, 2, 2, 1, 2 )
barplot(a, beside = T,
        col = 1:6, space = c(0, 2))
legend("topright", 
       legend = c("a", "b", "c", "d", "e", "f"), 
       fill = 1:6, ncol = 2,
       cex = 0.75)

I found this snippet here. The idea is to go up the DOM node hierarchy until a __vue__ property is found.

function getVueFromElement(el) {
  while (el) {
    if (el.__vue__) {
      return el.__vue__
    } else {
      el = el.parentNode
    }
  }
}

In Chrome:

An even quicker/shorter solution is:

escaped = new Option(html).innerHTML

This is related to some weird vestige of JavaScript whereby the Option element retains a constructor that does this sort of escaping automatically.

Credit to https://github.com/jasonmoo/t.js/blob/master/t.js

Add intl package to your pubspec.yaml file.

import 'package:intl/intl.dart';

DateFormat dateFormat = DateFormat("yyyy-MM-dd HH:mm:ss");

Converting DateTime object to String

String string = dateFormat.format(DateTime.now());

Converting String to DateTime object

DateTime dateTime = dateFormat.parse("2019-07-19 8:40:23");

The + selector targets the one element after. On a similar note, the ~ selector targets all the elements after. Here's a diagram, if you're confused:

You change default value in MySQL configuration file (option connect_timeout in mysqld section) -

[mysqld]
connect_timeout=100

If this file is not accessible for you, then you can set this value using this statement -

SET GLOBAL connect_timeout=100;

this is a select command

   FROM
    user
WHERE
    application_key = 'dsfdsfdjsfdsf'
        AND email NOT LIKE '%applozic.com'
        AND email NOT LIKE '%gmail.com'
        AND email NOT LIKE '%kommunicate.io';

this update command

 UPDATE user
    SET email = null
    WHERE application_key='dsfdsfdjsfdsf' and  email not like '%applozic.com' 
    and email not like '%gmail.com'  and email not like '%kommunicate.io';

1st: Get personal access token. https://github.com/settings/tokens
2nd: Put account & the token. Example is here:

$ git push
Username for 'https://github.com':            # Put your GitHub account name
Password for 'https://{USERNAME}@github.com': # Put your Personal access token

Link on how to create a personal access token: https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line

the answers suggesting to use cast, FYI, the cast method in spark 1.4.1 is broken.

for example, a dataframe with a string column having value "8182175552014127960" when casted to bigint has value "8182175552014128100"

    df.show
+-------------------+
|                  a|
+-------------------+
|8182175552014127960|
+-------------------+

    df.selectExpr("cast(a as bigint) a").show
+-------------------+
|                  a|
+-------------------+
|8182175552014128100|
+-------------------+

We had to face a lot of issue before finding this bug because we had bigint columns in production.

You could configure this in your http-Header

httpResponse.setHeader("Content-Type", "application/force-download");
        httpResponse.setHeader("Content-Disposition",
                               "attachment;filename="
                               + "MyFile.pdf"); 

You might have misunderstood rstrip slightly, it strips not a string but any character in the string you specify.

Like this:

>>> text = "xxxxcbaabc"
>>> text.rstrip("abc")
'xxxx'

So instead, just use

text = text[:-3] 

(after replacing whitespace with nothing)

Here is another way to reproduce this error in Python2.7 with numpy:

import numpy as np
a = np.array([1,2,3])
b = np.array([4,5,6])
c = np.concatenate(a,b)   #note the lack of tuple format for a and b
print(c) 

The np.concatenate method produces an error:

TypeError: only length-1 arrays can be converted to Python scalars

If you read the documentation around numpy.concatenate, then you see it expects a tuple of numpy array objects. So surrounding the variables with parens fixed it:

import numpy as np
a = np.array([1,2,3])
b = np.array([4,5,6])
c = np.concatenate((a,b))  #surround a and b with parens, packaging them as a tuple
print(c) 

Then it prints:

[1 2 3 4 5 6]

What's going on here?

That error is a case of bubble-up implementation - it is caused by duck-typing philosophy of python. This is a cryptic low-level error python guts puke up when it receives some unexpected variable types, tries to run off and do something, gets part way through, the pukes, attempts remedial action, fails, then tells you that "you can't reformulate the subspace responders when the wind blows from the east on Tuesday".

In more sensible languages like C++ or Java, it would have told you: "you can't use a TypeA where TypeB was expected". But Python does it's best to soldier on, does something undefined, fails, and then hands you back an unhelpful error. The fact we have to be discussing this is one of the reasons I don't like Python, or its duck-typing philosophy.

You need the get the values from the query string (since you dont have a method set, your using GET by default)

use the following tutorial.

http://papermashup.com/read-url-get-variables-withjavascript/

function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
        vars[key] = value;
    });
    return vars;
}

AWK works as a text interpreter that goes linewise for the whole document and that goes fieldwise for each line. Thus $1, $2...$n are references to the fields of each line ($1 is the first field, $2 is the second field, and so on...).

You can define a field separator by using the "-F" switch under the command line or within two brackets with "FS=...".

Now consider the answer of Jürgen:

echo "1: " | awk -F  ":" '/1/ {print $1}'

Above the field, boundaries are set by ":" so we have two fields $1 which is "1" and $2 which is the empty space. After comes the regular expression "/1/" that instructs the filter to output the first field only when the interpreter stumbles upon a line containing such an expression (I mean 1).

The output of the "echo" command is one line that contains "1", so the filter will work...

When dealing with the following example:

echo "1: " | awk '/1/ -F ":" {print $1}'

The syntax is messy and the interpreter chose to ignore the part F ":" and switches to the default field splitter which is the empty space, thus outputting "1:" as the first field and there will be not a second field!

The answer of Jürgen contains the good syntax...

As the statement executed is not actually DML (eg UPDATE, INSERT or EXECUTE), but a piece of T-SQL which contains DML, I suspect it is not treated as an update-query.

Section 13.1.2.3 of the JDBC 4.1 specification states something (rather hard to interpret btw):

When the method execute returns true, the method getResultSet is called to retrieve the ResultSet object. When execute returns false, the method getUpdateCount returns an int. If this number is greater than or equal to zero, it indicates the update count returned by the statement. If it is -1, it indicates that there are no more results.

Given this information, I guess that executeUpdate() internally does an execute(), and then - as execute() will return false - it will return the value of getUpdateCount(), which in this case - in accordance with the JDBC spec - will return -1.

This is further corroborated by the fact 1) that the Javadoc for Statement.executeUpdate() says:

Returns: either (1) the row count for SQL Data Manipulation Language (DML) statements or (2) 0 for SQL statements that return nothing

And 2) that the Javadoc for Statement.getUpdateCount() specifies:

the current result as an update count; -1 if the current result is a ResultSet object or there are no more results

Just to clarify: given the Javadoc for executeUpdate() the behavior is probably wrong, but it can be explained.

Also as I commented elsewhere, the -1 might just indicate: maybe something was changed, but we simply don't know, or we can't give an accurate number of changes (eg because in this example it is a piece of T-SQL that is executed).

The trick to make infinity's answer work without the flickering is to put the scroll-check on another div then the one you want to have fixed.

Derived from the code viixii.com uses I ended up using this:

function sticky_relocate() {
    var window_top = $(window).scrollTop();
    var div_top = $('#sticky-anchor').offset().top;
    if (window_top > div_top)
        $('#sticky-element').addClass('sticky');
    else
        $('#sticky-element').removeClass('sticky');
}

$(function() {
    $(window).scroll(sticky_relocate);
    sticky_relocate();
});

This way the function is only called once the sticky-anchor is reached and thus won't be removing and adding the '.sticky' class on every scroll event.

Now it adds the sticky class when the sticky-anchor reaches the top and removes it once the sticky-anchor return into view.

Just place an empty div with a class acting like an anchor just above the element you want to have fixed.

Like so:

<div id="sticky-anchor"></div>
<div id="sticky-element">Your sticky content</div>

All credit for the code goes to viixii.com

Given:

A_1 = [10 200 7 150]';
A_2 = [0.001 0.450 0.007 0.200]';

(As others have already pointed out) There are tools to simply compute correlation, most obviously corr:

corr(A_1, A_2);  %Returns 0.956766573975184  (Requires stats toolbox)

You can also use base Matlab's corrcoef function, like this:

M = corrcoef([A_1 A_2]):  %Returns [1 0.956766573975185; 0.956766573975185 1];
M(2,1);  %Returns 0.956766573975184 

Which is closely related to the cov function:

cov([condition(A_1) condition(A_2)]);

As you almost get to in your original question, you can scale and adjust the vectors yourself if you want, which gives a slightly better understanding of what is going on. First create a condition function which subtracts the mean, and divides by the standard deviation:

condition = @(x) (x-mean(x))./std(x);  %Function to subtract mean AND normalize standard deviation

Then the correlation appears to be (A_1 * A_2)/(A_1^2), like this:

(condition(A_1)' * condition(A_2)) / sum(condition(A_1).^2);  %Returns 0.956766573975185

By symmetry, this should also work

(condition(A_1)' * condition(A_2)) / sum(condition(A_2).^2); %Returns 0.956766573975185

And it does.

I believe, but don't have the energy to confirm right now, that the same math can be used to compute correlation and cross correlation terms when dealing with multi-dimensiotnal inputs, so long as care is taken when handling the dimensions and orientations of the input arrays.

Given an activated Python 3.6 virtualenv in somepath/venv, the following aliases resolved the various issues on a macOS Sierra where pip insisted on pointing to Apple's 2.7 Python.

alias pip='python somepath/venv/lib/python3.6/site-packages/pip/__main__.py'

This didn't work so well when I had to do sudo pip as the root user doesn't know anything about my alias or the virtualenv, so I had to add an extra alias to handle this as well. It's a hack, but it works, and I know what it does:

alias sudopip='sudo somepath/venv/bin/python somepath/venv/lib/python3.6/site-packages/pip/__main__.py'

background:

pip3 did not exist to start (command not found) with and which pip would return /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pip, the Apple Python.

Python 3.6 was installed via macports.

After activation of the 3.6 virtualenv I wanted to work with, which python would return somepath/venv/bin/python

Somehow pip install would do the right thing and hit my virtualenv, but pip list would rattle off Python 2.7 packages.

For Python, this is batting way beneath my expectations in terms of beginner-friendliness.

I would like to add some insight into other answers

In my case

-Xdoclint:none

Didn't work.

Let start with that, in my project, I didn't really need javadoc at all. Only some necessary plugins had got a build time dependency on it.

So, the most simple way solve my problem was:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-javadoc-plugin</artifactId>
    <configuration>
        <skip>true</skip>
    </configuration>
</plugin>

First argument in update method is SyntheticEvent object that contains common properties and methods to any event, it is not reference to React component where there is property props.

if you need pass argument to update method you can do it like this

onClick={ (e) => this.props.onClick(e, 'home', 'Home') }

and get these arguments inside update method

update(e, space, txt){
   console.log(e.target, space, txt);
}

Example

event.target gives you the native DOMNode, then you need to use the regular DOM APIs to access attributes. For instance getAttribute or dataset

<button 
  data-space="home" 
  className="home" 
  data-txt="Home" 
  onClick={ this.props.onClick } 
/> 
  Button
</button>

onClick(e) {
   console.log(e.target.dataset.txt, e.target.dataset.space);
}

Example

There are two branches lets say

• A (Branch on which you are working)
• B (Another branch with which you want to compare)

Being in branch A you can type

git diff --color B

then this will give you a output of

The important point about this is

1. Text in green is inside present in Branch A

2. Text in red is present in Branch B

Note: this solution works only if the slaves have the same directory structure as the master. pwd() will return the workspace directory on the master due to JENKINS-33511.

I used to do it using pwd() functionality of pipeline plugin. So, if you need to get a workspace on slave, you may do smth like this:

node('label'){
    //now you are on slave labeled with 'label'
    def workspace = pwd()
    //${workspace} will now contain an absolute path to job workspace on slave 
}

Note that SimpleDateFormat format pattern Z is for RFC 822 time zone and pattern X is for ISO 8601 (this standard supports single letter time zone names like Z for Zulu).

So new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSX") produces a format that can parse both "2013-03-11T01:38:18.309Z" and "2013-03-11T01:38:18.309+0000" and will give you the same result.

Unfortunately, as far as I can tell, you can't get this format to generate the Z for Zulu version, which is annoying.

I actually have more trouble on the JavaScript side to deal with both formats.

Try this:

DECLARE UserCursor CURSOR LOCAL FAST_FORWARD FOR
SELECT
    spid
FROM
    master.dbo.sysprocesses
WHERE DB_NAME(dbid) = 'dbname'--replace the dbname with your database
DECLARE @spid SMALLINT
DECLARE @SQLCommand VARCHAR(300)
OPEN UserCursor
FETCH NEXT FROM UserCursor INTO
    @spid
WHILE @@FETCH_STATUS = 0
BEGIN
    SET @SQLCommand = 'KILL ' + CAST(@spid AS VARCHAR)
    EXECUTE(@SQLCommand)
    FETCH NEXT FROM UserCursor INTO
        @spid
END
CLOSE UserCursor
DEALLOCATE UserCursor
GO

InputStream is;
InputStreamReader r = new InputStreamReader(is);
BufferedReader br = new BufferedReader(r);

finalize method is not guaranteed.This method is called when the object becomes eligible for GC. There are many situations where the objects may not be garbage collected.

Try \r\n where \r is carriage return. Also ensure that your output do not have new line, because debugger can show you special characters in form of \n, \r, \t etc.

If you got any error on your console by saying, “Embedded servlet container failed to start. Port 8080 was already in use.” Then go to application.properties file and add this property “server.port = 8090”.

Actually the default port for spring boot is 8080, if you have something else on that port, the above error will occur. So we are asking spring boot to run on other port by adding “server.port = 8090” in application.properties file.

When we try to drop a column which is depended upon then we see this kind of error:

The object 'DF__*' is dependent on column ''.

drop the constraint which is dependent on that column with:

ALTER TABLE TableName DROP CONSTRAINT dependent_constraint;

Example:

Msg 5074, Level 16, State 1, Line 1

The object 'DF__Employees__Colf__1273C1CD' is dependent on column 'Colf'.

Msg 4922, Level 16, State 9, Line 1

ALTER TABLE DROP COLUMN Colf failed because one or more objects access this column.

Drop Constraint(DF__Employees__Colf__1273C1CD):

ALTER TABLE Employees DROP CONSTRAINT DF__Employees__Colf__1273C1CD;

Then you can Drop Column:

Alter Table TableName Drop column ColumnName

Try:

psql -U user_name  -h 127.0.0.1 -d db_name

where

• -U is the database user name
• -h is the hostname/IP of the local server, thus avoiding Unix domain sockets
• -d is the database name to connect to

This is then evaluated as a "network" connection by Postgresql rather than a Unix domain socket connection, thus not evaluated as a "local" connect as you might see in pg_hba.conf:

local   all             all                                     peer

After setting the path of your jdk use JPS.Then You can eaisly kill it by Task Manager
JPS will give you all java processes

Also, what helped me understand this particular scenario that you described is the Promise API documentation, specifically where it explains how the promised returned by the then method will be resolved differently depending on what the handler fn returns:

if the handler function:

• returns a value, the promise returned by then gets resolved with the returned value as its value;
• throws an error, the promise returned by then gets rejected with the thrown error as its value;
• returns an already resolved promise, the promise returned by then gets resolved with that promise's value as its value;
• returns an already rejected promise, the promise returned by then gets rejected with that promise's value as its value.
• returns another pending promise object, the resolution/rejection of the promise returned by then will be subsequent to the resolution/rejection of the promise returned by the handler. Also, the value of the promise returned by then will be the same as the value of the promise returned by the handler.

(From http://git.or.cz/gitwiki/GitTips#head-9f87cd21bcdf081a61c29985604ff4be35a5e6c0)

How to change commits deeper in history

Since history in Git is immutable, fixing anything but the most recent commit (commit which is not branch head) requires that the history is rewritten from the changed commit and forward.

You can use StGIT for that, initialize branch if necessary, uncommitting up to the commit you want to change, pop to it if necessary, make a change then refresh patch (with -e option if you want to correct commit message), then push everything and stg commit.

Or you can use rebase to do that. Create new temporary branch, rewind it to the commit you want to change using git reset --hard, change that commit (it would be top of current head), then rebase branch on top of changed commit, using git rebase --onto .

Or you can use git rebase --interactive, which allows various modifications like patch re-ordering, collapsing, ...

I think that should answer your question. However, note that if you have pushed code to a remote repository and people have pulled from it, then this is going to mess up their code histories, as well as the work they've done. So do it carefully.

Oops, immediately found 2//2.

If it is going to be a web based application, you can also use the ServletContextListener interface.

public class SLF4JBridgeListener implements ServletContextListener {

   @Autowired 
   ThreadPoolTaskExecutor executor;

   @Autowired 
   ThreadPoolTaskScheduler scheduler;

    @Override
    public void contextInitialized(ServletContextEvent sce) {

    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
         scheduler.shutdown();
         executor.shutdown();     

    }

}

From the data you gathered, I would tend to say that encoded "/" in an uri are meant to be seen as "/" again at application/cgi level.

That's to say, that if you're using apache with mod_rewrite for instance, it will not match pattern expecting slashes against URI with encoded slashes in it. However, once the appropriate module/cgi/... is called to handle the request, it's up to it to do the decoding and, for instance, retrieve a parameter including slashes as the first component of the URI.

If your application is then using this data to retrieve a file (whose filename contains a slash), that's probably a bad thing.

To sum up, I find it perfectly normal to see a difference of behaviour in "/" or "%2F" as their interpretation will be done at different levels.

The answers by Brandon and fatbotdesigns are both correct, but having implemented the Google docs preview, we found multiple .docx files that couldn't be handled by Google. Switched to the MS Office Online preview and works likes a charm.

My recommendation would be to use the MS Office Preview URL over Google's.

https://view.officeapps.live.com/op/embed.aspx?src=http://remote.url.tld/path/to/document.doc' 

MySQL also has IF():

SELECT 
  id, action_heading, 
      IF(action_type='Income',action_amount,0) income, 
      IF(action_type='Expense', action_amount, 0) expense
FROM tbl_transaction

1. Prerequisite: You must know how to use decorators and specially with wraps. This comment explains it a bit clear or this link also explains it pretty well.

2. Whenever we use For eg: @wraps followed by our own wrapper function. As per the details given in this link , it says that

functools.wraps is convenience function for invoking update_wrapper() as a function decorator, when defining a wrapper function.

It is equivalent to partial(update_wrapper, wrapped=wrapped, assigned=assigned, updated=updated).

So @wraps decorator actually gives a call to functools.partial(func[,*args][, **keywords]).

The functools.partial() definition says that

The partial() is used for partial function application which “freezes” some portion of a function’s arguments and/or keywords resulting in a new object with a simplified signature. For example, partial() can be used to create a callable that behaves like the int() function where the base argument defaults to two:

>>> from functools import partial
>>> basetwo = partial(int, base=2)
>>> basetwo.__doc__ = 'Convert base 2 string to an int.'
>>> basetwo('10010')
18

Which brings me to the conclusion that, @wraps gives a call to partial() and it passes your wrapper function as a parameter to it. The partial() in the end returns the simplified version i.e the object of what's inside the wrapper function and not the wrapper function itself.

try to override void onBackPressed() defined in android.app.Activity class.

Add attributed text color in swift code.

Swift 4:

  let greenColor = UIColor(red: 10/255, green: 190/255, blue: 50/255, alpha: 1)
  let attributedStringColor = [NSAttributedStringKey.foregroundColor : greenColor];

  let attributedString = NSAttributedString(string: "Hello World!", attributes: attributedStringColor)
  label.attributedText = attributedString

for Swift 3:

  let greenColor = UIColor(red: 10/255, green: 190/255, blue: 50/255, alpha: 1)
  let attributedStringColor : NSDictionary = [NSForegroundColorAttributeName : greenColor];


  let attributedString = NSAttributedString(string: "Hello World!", attributes: attributedStringColor as? [String : AnyObject])
  label.attributedText = attributedString 

I've spoken to Tab Atkins (author of the flexbox spec) about this, and this is what we came up with:

HTML:

<div class="content">
    <div class="box">
        <div class="column">Column 1</div>
        <div class="column">Column 2</div>
        <div class="column">Column 3</div>
    </div>
</div>

CSS:

.content {
    flex: 1;
    display: flex;
    overflow: auto;
}

.box {
    display: flex;
    min-height: min-content; /* needs vendor prefixes */
}

Here are the pens:

1. Short columns being stretched.
2. Longer columns overflowing and scrolling.

The reason this works is because align-items: stretch doesn't shrink its items if they have an intrinsic height, which is accomplished here by min-content.

You could also use T-Regx library:

pattern('\D')->remove($c)

T-Regx also:

• Throws exceptions on fail (not false, null or warnings)
• Has automatic delimiters (delimiters are not required!)
• Has a lot cleaner api

You have to tell your SQLCommand objects to use the transaction:

cmd1.Transaction = transaction;

or in the constructor:

SqlCommand cmd1 = new SqlCommand("select...", connectionsql, transaction);

Make sure to have the connectionsql object open, too.

But all you are doing are SELECT statements. Transactions would benefit more when you use INSERT, UPDATE, etc type actions.

Use RGBA like this: background-color: rgba(255, 0, 0, .5)

I don't know of a way to force Chrome to not clear the Network debugger, but this might accomplish what you're looking for:

1. Open the js console
2. window.addEventListener("beforeunload", function() { debugger; }, false)

This will pause chrome before loading the new page by hitting a breakpoint.

Typecast the envelope to SoapPrimitive:

SoapPrimitive result = (SoapPrimitive)envelope.getResponse();
String strRes = result.toString();

and it will work.

You could also use lattice::histogram()

if(!str.trim()){
  console.log('string is empty or only contains spaces');
}

Removing the whitespace from a string can be done using String#trim().

To check if a string is null or undefined, one can check if the string itself is falsey, in which case it is null, undefined, or an empty string. This first check is necessary, as attempting to invoke methods on null or undefined will result in an error. To check if it contains only spaces, one can check if the string is falsey after trimming, which means that it is an empty string at that point.

if(!str || !str.trim()){
   //str is null, undefined, or contains only spaces
}

This can be simplified using the optional chaining operator.

if(!str?.trim()){
   //str is null, undefined, or contains only spaces
}

If you are certain that the variable will be a string, only the second check is necessary.

if(!str.trim()){
   console.log("str is empty or contains only spaces");
}

int i = 0;
bool b = Convert.ToBoolean(i);

If you want to ignore the certificate all together then take a look at the answer here: Ignore self-signed ssl cert using Jersey Client

Although this will make your app vulnerable to man-in-the-middle attacks.

Or, try adding the cert to your java store as a trusted cert. This site may be helpful. http://blog.icodejava.com/tag/get-public-key-of-ssl-certificate-in-java/

Here's another thread showing how to add a cert to your store. Java SSL connect, add server cert to keystore programmatically

The key is:

KeyStore.Entry newEntry = new KeyStore.TrustedCertificateEntry(someCert);
ks.setEntry("someAlias", newEntry, null);

I found a nice solution which does not need an event to be triggered:

@FXML
private Button cancelButton;

close(new Event(cancelButton, stage, null));

@FXML
private void close(Event event) {
    ((Node)(event.getSource())).getScene().getWindow().hide();                      
}

For CGSize

CGSize(width: self.view.frame.width * 3, height: self.view.frame.size.height)

.NET compact framework has been ported to Symbian OS (http://www.redfivelabs.com/). If .NET as a 'closed' platform can be ported to this platform, I can't see any reason why it cannot be done for Android.

A very simple way is to provide some fields like <textarea style="display:none;" name="input"></textarea> and discard all replies that have this filled in.

Another approach is to generate the whole form (or just the field names) using Javascript; few bots can run it.

Anyway, you won't do much against live "bots" from Taiwan or India, that are paid $0.03 per one posted link, and make their living that way.

<img> is a replaced element; it has a display value of inline by default, but its default dimensions are defined by the embedded image's intrinsic values, like it were inline-block. You can set properties like border/border-radius, padding/margin, width, height, etc. on an image.

Replaced elements : They're elements whose contents are not affected by the current document's styles. The position of the replaced element can be affected using CSS, but not the contents of the replaced element itself.

Referenece : https://developer.mozilla.org/en-US/docs/Web/HTML/Element/img

While in Java it's indeed a bad practice to use exceptions for flow control (mainly because exceptions force the JVM to gather resources (more here)), in Python you have two important principles: duck typing and EAFP. This basically means that you are encouraged to try using an object the way you think it would work, and handle when things are not like that.

In summary, the only problem would be your code getting too much indented. If you feel like it, try to simplify some of the nestings, like lqc suggested in the suggested answer above.

With this you can remove the column and store variable into another variable.

df = subset(data, select = -c(genome) )

If you want to execute a local script remotely without saving that script remotely you can do it like this:

cat local_script.sh | ssh user@remotehost 'bash -'

It works like a charm for me.

I do that even from Windows to Linux given that you have MSYS installed on your Windows computer.

There is an open-source javascript plugin that does just that, but for any browser - debugout.js

Debugout.js records and save console.logs so your application can access them. Full disclosure, I wrote it. It formats different types appropriately, can handle nested objects and arrays, and can optionally put a timestamp next to each log. You can also toggle live-logging in one place, and without having to remove all your logging statements.

If I understood your problem correctly, $(this).parents('.box').children('.something1') Is this what you are looking for?

I created an easy-to-use library for image resizing. It can be found here on Github.

An example of how to use the library:

// Include PHP Image Magician library
require_once('php_image_magician.php');

// Open JPG image
$magicianObj = new imageLib('racecar.jpg');

// Resize to best fit then crop (check out the other options)
$magicianObj -> resizeImage(100, 200, 'crop');

// Save resized image as a PNG (or jpg, bmp, etc)
$magicianObj -> saveImage('racecar_small.png');

Other features, should you need them, are:

• Quick and easy resize - Resize to landscape, portrait, or auto
• Easy crop
• Add text
• Quality adjustment
• Watermarking
• Shadows and reflections
• Transparency support
• Read EXIF metadata
• Borders, Rounded corners, Rotation
• Filters and effects
• Image sharpening
• Image type conversion
• BMP support

Try to reinstall ADT plugin on Eclipse. Check out this: Installing the Eclipse Plugin

You can factor out your common logic to a private method, for example called Initialize that gets called from both constructors.

Due to the fact that you want to perform argument validation you cannot resort to constructor chaining.

Example:

public Point2D(double x, double y)
{
    // Contracts

    Initialize(x, y);
}

public Point2D(Point2D point)
{
    if (point == null)
        throw new ArgumentNullException("point");

    // Contracts

    Initialize(point.X, point.Y);
}

private void Initialize(double x, double y)
{
    X = x;
    Y = y;
}

this.dtOptions = {
    order: [],
    columnDefs: [ {
        'targets': [0], /* column index [0,1,2,3]*/
        'orderable': false, /* true or false */
    }],
    ........ rest all stuff .....
}

The above worked fine for me.

(I am using Angular version 7, angular-datatables version 6.0.0 and bootstrap version 4)

In the direction of Bradgonesurfing's answer, many times one doesn't really need to concatenate two vectors (O(n)), but instead just work with them as if they were concatenated (O(1)). If this is your case, it can be done without the need of Boost libraries.

The trick is to create a vector proxy: a wrapper class which manipulates references to both vectors, externally seen as a single, contiguous one.

USAGE

std::vector<int> A{ 1, 2, 3, 4, 5};
std::vector<int> B{ 10, 20, 30 };

VecProxy<int> AB(A, B);  // ----> O(1). No copies performed.

for (size_t i = 0; i < AB.size(); ++i)
    std::cout << AB[i] << " ";  // 1 2 3 4 5 10 20 30

IMPLEMENTATION

template <class T>
class VecProxy {
private:
    std::vector<T>& v1, v2;
public:
    VecProxy(std::vector<T>& ref1, std::vector<T>& ref2) : v1(ref1), v2(ref2) {}
    const T& operator[](const size_t& i) const;
    const size_t size() const;
};

template <class T>
const T& VecProxy<T>::operator[](const size_t& i) const{
    return (i < v1.size()) ? v1[i] : v2[i - v1.size()];
};

template <class T>
const size_t VecProxy<T>::size() const { return v1.size() + v2.size(); };

MAIN BENEFIT

It's O(1) (constant time) to create it, and with minimal extra memory allocation.

SOME STUFF TO CONSIDER

• You should only go for it if you really know what you're doing when dealing with references. This solution is intended for the specific purpose of the question made, for which it works pretty well. To employ it in any other context may lead to unexpected behavior if you are not sure on how references work.
• In this example, AB does not provide a non-const access operator ([ ]). Feel free to include it, but keep in mind: since AB contains references, to assign it values will also affect the original elements within A and/or B. Whether or not this is a desirable feature, it's an application-specific question one should carefully consider.
• Any changes directly made to either A or B (like assigning values, sorting, etc.) will also "modify" AB. This is not necessarily bad (actually, it can be very handy: AB does never need to be explicitly updated to keep itself synchronized to both A and B), but it's certainly a behavior one must be aware of. Important exception: to resize A and/or B to sth bigger may lead these to be reallocated in memory (for the need of contiguous space), and this would in turn invalidate AB.
• Because every access to an element is preceded by a test (namely, "i < v1.size()"), VecProxy access time, although constant, is also a bit slower than that of vectors.
• This approach can be generalized to n vectors. I haven't tried, but it shouldn't be a big deal.

public class EmployeeApiController : ApiController
{
    private readonly IEmployee _employeeRepositary;

    public EmployeeApiController()
    {
        _employeeRepositary = new EmployeeRepositary();
    }

    public async Task<HttpResponseMessage> Create(EmployeeModel Employee)
    {
        var returnStatus = await _employeeRepositary.Create(Employee);
        return Request.CreateResponse(HttpStatusCode.OK, returnStatus);
    }
} 

Persistance

public async Task<ResponseStatusViewModel> Create(EmployeeModel Employee)
{    
    var responseStatusViewModel = new ResponseStatusViewModel();
    var connection = new SqlConnection(EmployeeConfig.EmployeeConnectionString);
                var command = new SqlCommand("usp_CreateEmployee", connection);
                command.CommandType = CommandType.StoredProcedure;
                var pEmployeeName = new SqlParameter("@EmployeeName", SqlDbType.VarChar, 50);
                pEmployeeName.Value = Employee.EmployeeName;
                command.Parameters.Add(pEmployeeName);


                try
                {
                    await connection.OpenAsync();
                    await command.ExecuteNonQueryAsync();

                    command.Dispose();
                    connection.Dispose();

                }
                catch (Exception ex)
                {

                    throw ex;
                }
                return responseStatusViewModel;
            }

Repository

Task<ResponseStatusViewModel> Create(EmployeeModel Employee);

public class EmployeeConfig
{
    public static string EmployeeConnectionString;
    private const string EmployeeConnectionStringKey = "EmployeeConnectionString";
    public static void InitializeConfig()
    {
        EmployeeConnectionString = GetConnectionStringValue(EmployeeConnectionStringKey);
    }

    private static string GetConnectionStringValue(string connectionStringName)
    {
        return Convert.ToString(ConfigurationManager.ConnectionStrings[connectionStringName]);
    }
}

The easiest way is to convert to a date:

SELECT *
FROM dbo.LogRequests
WHERE cast(dateX as date) = '2014-05-09';

Often, such expressions preclude the use of an index. However, according to various sources on the web, the above is sargable (meaning it will use an index), such as this and this.

I would be inclined to use the following, just out of habit:

SELECT *
FROM dbo.LogRequests
WHERE dateX >= '2014-05-09' and dateX < '2014-05-10';

I had this problem (colons in the target name) because I had -n in my GREP_OPTIONS environment variable. Apparently, this caused configure to generate the Makefile incorrectly.

Just to offer an update to the answer for people with API min 19, per the docs:

On Android 4.4 (API level 19) and higher, you have the additional option of using the ACTION_OPEN_DOCUMENT intent, which displays a system-controlled picker UI controlled that allows the user to browse all files that other apps have made available. From this single UI, the user can pick a file from any of the supported apps.

On Android 5.0 (API level 21) and higher, you can also use the ACTION_OPEN_DOCUMENT_TREE intent, which allows the user to choose a directory for a client app to access.

Open files using storage access framework - Android Docs

     val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
     intent.type = "image/*"
     startActivityForResult(intent, PICK_IMAGE_REQUEST_CODE)

mysql> SELECT CAST(4 AS DECIMAL(4,3));
+-------------------------+
| CAST(4 AS DECIMAL(4,3)) |
+-------------------------+
|                   4.000 |
+-------------------------+
1 row in set (0.00 sec)

mysql> SELECT CAST('4.5s' AS DECIMAL(4,3));
+------------------------------+
| CAST('4.5s' AS DECIMAL(4,3)) |
+------------------------------+
|                        4.500 |
+------------------------------+
1 row in set (0.00 sec)

mysql> SELECT CAST('a4.5s' AS DECIMAL(4,3));
+-------------------------------+
| CAST('a4.5s' AS DECIMAL(4,3)) |
+-------------------------------+
|                         0.000 |
+-------------------------------+
1 row in set, 1 warning (0.00 sec)

Actually your Windows firewall is blocking the connection. You need to enter these commands into cmd.exe from Administrator.

netsh advfirewall firewall add rule name="FTP" dir=in action=allow program=%SystemRoot%\System32\ftp.exe enable=yes protocol=tcp
netsh advfirewall firewall add rule name="FTP" dir=in action=allow program=%SystemRoot%\System32\ftp.exe enable=yes protocol=udp

In case something goes wrong then you can revert by this:

netsh advfirewall firewall delete rule name="FTP" program=%SystemRoot%\System32\ftp.exe

Python strings are immutable and hence have more complex handling when talking about its operations. Note that a string with spaces is actually an empty string but has a non-zero size. Let’s see two different methods of checking if string is empty or not: Method #1 : Using Len() Using Len() is the most generic method to check for zero-length string. Even though it ignores the fact that a string with just spaces also should be practically considered as an empty string even its non-zero.

Method #2 : Using not

Not operator can also perform the task similar to Len(), and checks for 0 length string, but same as the above, it considers the string with just spaces also to be non-empty, which should not practically be true.

Good Luck!

So, as was mentioned in a couple comments containing the data in an array is simpler but the solution does not scale well in terms of efficiency as the data set size increases. You really should only use an iterator when you want to access a random object in the array, otherwise, generators are the way to go. Below I have prototyped a reader function which reads each json object individually and returns a generator.

The basic idea is to signal the reader to split on the carriage character "\n" (or "\r\n" for Windows). Python can do this with the file.readline() function.

import json
def json_reader(filename):
    with open(filename) as f:
        for line in f:
            yield json.loads(line)

However, this method only really works when the file is written as you have it -- with each object separated by a newline character. Below I wrote an example of a writer that separates an array of json objects and saves each one on a new line.

def json_writer(file, json_objects):
    with open(file, "w") as f:
        for jsonobj in json_objects:
            jsonstr = json.dumps(jsonobj)
            f.write(jsonstr + "\n")

You could also do the same operation with file.writelines() and a list comprehension:

...
    json_strs = [json.dumps(j) + "\n" for j in json_objects]
    f.writelines(json_strs)
...

And if you wanted to append the data instead of writing a new file just change open(file, "w") to open(file, "a").

In the end I find this helps a great deal not only with readability when I try and open json files in a text editor but also in terms of using memory more efficiently.

On that note if you change your mind at some point and you want a list out of the reader, Python allows you to put a generator function inside of a list and populate the list automatically. In other words, just write

lst = list(json_reader(file))

This will format column A as text, B as General, C as a number.

Sub formatColumns()
 Columns(1).NumberFormat = "@"
 Columns(2).NumberFormat = "General"
 Columns(3).NumberFormat = "0"
End Sub

The solution is to define a custom binding inside your Web.Config file and set the security mode to "Transport". Then you just need to use the bindingConfiguration property inside your endpoint definition to point to your custom binding.

See here: Scott's Blog: WCF Bindings Needed For HTTPS

You could use a library such as node-uuid for this to make sure you get unique ids.

Install using:

npm install node-uuid --save

Then in your react component add the following:

import {default as UUID} from "node-uuid";
import {default as React} from "react";

export default class MyComponent extends React.Component {   
  componentWillMount() {
    this.id = UUID.v4();
  }, 
  render() {
    return (
      <div>
        <label htmlFor={this.id}>My label</label>
        <input id={this.id} type="text"/>
      </div>
    );
  }   
}

I got this exception too. MY error code is below

        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod(requestMethod);
        connection.setRequestProperty("Content-type", "JSON");

I found "Content-type" should not be "JSON",is wrong! I solved this exception by update this line to below

        connection.setRequestProperty("Content-type", "application/json");

you can check up your "Content-type"

Use the flex-grow property to the main content div and give the dispaly: flex; to its parent;

body {_x000D_
    height: 100%;_x000D_
    position: absolute;_x000D_
    margin: 0;_x000D_
}_x000D_
section {_x000D_
  height: 100%;_x000D_
  display: flex;_x000D_
  flex-direction : column;_x000D_
}_x000D_
header {_x000D_
  background: tomato;_x000D_
}_x000D_
div {_x000D_
  flex: 1; /* or flex-grow: 1  */;_x000D_
  overflow-x: auto;_x000D_
  background: gold;_x000D_
}_x000D_
footer {_x000D_
  background: lightgreen;_x000D_
  min-height: 60px;_x000D_
}

<section>_x000D_
  <header>_x000D_
    header: sized to content_x000D_
    <br>(but is it really?)_x000D_
  </header>_x000D_
  <div>_x000D_
    main content: fills remaining space<br>_x000D_
    x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
    x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
    x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
    x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
    x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>_x000D_
  </div>_x000D_
  <footer>_x000D_
    footer: fixed height in px_x000D_
  </footer>_x000D_
</section>

If you want all the bars to get the same color (fill), you can easily add it inside geom_bar.

ggplot(data=df, aes(x=c1+c2/2, y=c3)) + 
geom_bar(stat="identity", width=c2, fill = "#FF6666")

Add fill = the_name_of_your_var inside aes to change the colors depending of the variable :

c4 = c("A", "B", "C")
df = cbind(df, c4)
ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) + 
geom_bar(stat="identity", width=c2)

Use scale_fill_manual() if you want to manually the change of colors.

ggplot(data=df, aes(x=c1+c2/2, y=c3, fill = c4)) + 
geom_bar(stat="identity", width=c2) + 
scale_fill_manual("legend", values = c("A" = "black", "B" = "orange", "C" = "blue"))

I can't see why you would care. Other than the "don't use ports below 1024" privilege rule, you should be able to use any port because your clients should be configurable to talk to any IP address and port!

If they're not, then they haven't been done very well. Go back and do them properly :-)

In other words, run the server at IP address X and port Y then configure clients with that information. Then, if you find you must run a different server on X that conflicts with your Y, just re-configure your server and clients to use a new port. This is true whether your clients are code, or people typing URLs into a browser.

I, like you, wouldn't try to get numbers assigned by IANA since that's supposed to be for services so common that many, many environments will use them (think SSH or FTP or TELNET).

Your network is your network and, if you want your servers on port 1234 (or even the TELNET or FTP ports for that matter), that's your business. Case in point, in our mainframe development area, port 23 is used for the 3270 terminal server which is a vastly different beast to telnet. If you want to telnet to the UNIX side of the mainframe, you use port 1023. That's sometimes annoying if you use telnet clients without specifying port 1023 since it hooks you up to a server that knows nothing of the telnet protocol - we have to break out of the telnet client and do it properly:

telnet big_honking_mainframe_box.com 1023

If you really can't make the client side configurable, pick one in the second range, like 48042, and just use it, declaring that any other software on those boxes (including any added in the future) has to keep out of your way.

Thread is a class, not an instance; currentThread() is a static method that returns the Thread instance corresponding to the calling thread.

Use (2). interrupt() is a bit brutal for normal use.

Subtract datetime.timedelta(days=1)

1) wav to mp3

ffmpeg -i audio.wav -acodec libmp3lame audio.mp3

2) ogg to mp3

ffmpeg -i audio.ogg -acodec libmp3lame audio.mp3

3) ac3 to mp3

ffmpeg -i audio.ac3 -acodec libmp3lame audio.mp3

4) aac to mp3

ffmpeg -i audio.aac -acodec libmp3lame audio.mp3

//You may use this example. Might be help you...

$user = User::select("users.*","items.id as itemId","jobs.id as jobId")
        ->join("items","items.user_id","=","users.id")
        ->join("jobs",function($join){
            $join->on("jobs.user_id","=","users.id")
                ->on("jobs.item_id","=","items.id");
        })
        ->get();
print_r($user);

The double space generally works well. However, sometimes the lacking newline in the PDF still occurs to me when using four pound sign sub titles #### in Jupyter Notebook, as the next paragraph is put into the subtitle as a single paragraph. No amount of double spaces and returns fixed this, until I created a notebook copy 'v. PDF' and started using a single backslash '\' which also indents the next paragraph nicely:

#### 1.1 My Subtitle  \

1.1 My Subtitle
    Next paragraph text.

An alternative to this, is to upgrade the level of your four # titles to three # titles, etc. up the title chain, which will remove the next paragraph indent and format the indent of the title itself (#### My Subtitle ---> ### My Subtitle).

### My Subtitle


1.1 My Subtitle

Next paragraph text.

An ALTER TABLE statement adding the PRIMARY KEY column works correctly in my testing:

ALTER TABLE tbl ADD id INT PRIMARY KEY AUTO_INCREMENT;

On a temporary table created for testing purposes, the above statement created the AUTO_INCREMENT id column and inserted auto-increment values for each existing row in the table, starting with 1.

Take a look at the InstallHelper method of the ManagedInstaller class. You can install a service using:

string[] args;
ManagedInstallerClass.InstallHelper(args);

This is exactly what InstallUtil does. The arguments are the same as for InstallUtil.

The benefits of this method are that it involves no messing in the registry, and it uses the same mechanism as InstallUtil.

Per batch, 65536 * Network Packet Size which is 4k so 256 MB

However, IN will stop way before that but it's not precise.

You end up with memory errors but I can't recall the exact error. A huge IN will be inefficient anyway.

Edit: Remus reminded me: the error is about "stack size"

If I get you correctly you have just downloaded Android sdk and want to configure it working with Eclipse. I think you miss one step from the installation of the sdk:
1) you download it
2) you extract it somewhere
3) then go to the specified directory and start AndroidManager (or was it just android??). There you specify you need platform-tools and the manager will configure that for you. This will also provide you with the 'adb' executable which is crucial for the Android developement.

After that you install ADT (which I think you already did) and from Eclipse preferences -> Android options you get a place to specify where your android-sdk is. If you specify it after you did the 'step 3' you should be good to go.

I am not 100% sure I got it correctly and what your state is, so please forgive me if my comment is irrelevant. If I am wrong I will be happy to help if you provide some more details.

Something I am completely sure is that you shouldn't need to create the folder 'tools' by yourself.

PS: The description I gave is for newer versions of android sdk, but if you are encountering a problem with older version I will recommend you to start from scratch with newer version. It shouldn't take you that long time.

int *p=(int *)0x1234 = 10; //0x1234 is the memory address and value 10 is assigned in that address


unsigned int *ptr=(unsigned int *)0x903jf = 20;//0x903j is memory address and value 20 is assigned 

Basically in Embedded platform we are using directly addresses instead of names

This doesn't work. only one value is ever pre-selected even though both options are available in the list only the first is shown ('#searchproject').select2('val', ['New Co-location','Expansion']);

For a string of length 1 you can simply perform isdigit() or isalpha()

If your string length is greater than 1, you can make a function something like..

def isinteger(a):
    try:
        int(a)
        return True
    except ValueError:
        return False

I also solved my problem with Mosh's answer and I thought PeterB's answer was a bit of since it used an enum as foreign key. Remember that you will need to add a new migration after adding this code.

I can also recommend this blog post for other solutions:

http://www.kianryan.co.uk/2013/03/orphaned-child/

Code:

public class Child
{
    [Key, Column(Order = 0), DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public int Id { get; set; }

    public string Heading { get; set; }
    //Add other properties here.

    [Key, Column(Order = 1)]
    public int ParentId { get; set; }

    public virtual Parent Parent { get; set; }
}

TL;DR

SELECT json_agg(t) FROM t

for a JSON array of objects, and

SELECT
    json_build_object(
        'a', json_agg(t.a),
        'b', json_agg(t.b)
    )
FROM t

for a JSON object of arrays.

List of objects

This section describes how to generate a JSON array of objects, with each row being converted to a single object. The result looks like this:

[{"a":1,"b":"value1"},{"a":2,"b":"value2"},{"a":3,"b":"value3"}]

9.3 and up

The json_agg function produces this result out of the box. It automatically figures out how to convert its input into JSON and aggregates it into an array.

SELECT json_agg(t) FROM t

There is no jsonb (introduced in 9.4) version of json_agg. You can either aggregate the rows into an array and then convert them:

SELECT to_jsonb(array_agg(t)) FROM t

or combine json_agg with a cast:

SELECT json_agg(t)::jsonb FROM t

My testing suggests that aggregating them into an array first is a little faster. I suspect that this is because the cast has to parse the entire JSON result.

9.2

9.2 does not have the json_agg or to_json functions, so you need to use the older array_to_json:

SELECT array_to_json(array_agg(t)) FROM t

You can optionally include a row_to_json call in the query:

SELECT array_to_json(array_agg(row_to_json(t))) FROM t

This converts each row to a JSON object, aggregates the JSON objects as an array, and then converts the array to a JSON array.

I wasn't able to discern any significant performance difference between the two.

Object of lists

This section describes how to generate a JSON object, with each key being a column in the table and each value being an array of the values of the column. It's the result that looks like this:

{"a":[1,2,3], "b":["value1","value2","value3"]}

9.5 and up

We can leverage the json_build_object function:

SELECT
    json_build_object(
        'a', json_agg(t.a),
        'b', json_agg(t.b)
    )
FROM t

You can also aggregate the columns, creating a single row, and then convert that into an object:

SELECT to_json(r)
FROM (
    SELECT
        json_agg(t.a) AS a,
        json_agg(t.b) AS b
    FROM t
) r

Note that aliasing the arrays is absolutely required to ensure that the object has the desired names.

Which one is clearer is a matter of opinion. If using the json_build_object function, I highly recommend putting one key/value pair on a line to improve readability.

You could also use array_agg in place of json_agg, but my testing indicates that json_agg is slightly faster.

There is no jsonb version of the json_build_object function. You can aggregate into a single row and convert:

SELECT to_jsonb(r)
FROM (
    SELECT
        array_agg(t.a) AS a,
        array_agg(t.b) AS b
    FROM t
) r

Unlike the other queries for this kind of result, array_agg seems to be a little faster when using to_jsonb. I suspect this is due to overhead parsing and validating the JSON result of json_agg.

Or you can use an explicit cast:

SELECT
    json_build_object(
        'a', json_agg(t.a),
        'b', json_agg(t.b)
    )::jsonb
FROM t

The to_jsonb version allows you to avoid the cast and is faster, according to my testing; again, I suspect this is due to overhead of parsing and validating the result.

9.4 and 9.3

The json_build_object function was new to 9.5, so you have to aggregate and convert to an object in previous versions:

SELECT to_json(r)
FROM (
    SELECT
        json_agg(t.a) AS a,
        json_agg(t.b) AS b
    FROM t
) r

or

SELECT to_jsonb(r)
FROM (
    SELECT
        array_agg(t.a) AS a,
        array_agg(t.b) AS b
    FROM t
) r

depending on whether you want json or jsonb.

(9.3 does not have jsonb.)

9.2

In 9.2, not even to_json exists. You must use row_to_json:

SELECT row_to_json(r)
FROM (
    SELECT
        array_agg(t.a) AS a,
        array_agg(t.b) AS b
    FROM t
) r

Documentation

Find the documentation for the JSON functions in JSON functions.

json_agg is on the aggregate functions page.

Design

If performance is important, ensure you benchmark your queries against your own schema and data, rather than trust my testing.

Whether it's a good design or not really depends on your specific application. In terms of maintainability, I don't see any particular problem. It simplifies your app code and means there's less to maintain in that portion of the app. If PG can give you exactly the result you need out of the box, the only reason I can think of to not use it would be performance considerations. Don't reinvent the wheel and all.

Nulls

Aggregate functions typically give back NULL when they operate over zero rows. If this is a possibility, you might want to use COALESCE to avoid them. A couple of examples:

SELECT COALESCE(json_agg(t), '[]'::json) FROM t

Or

SELECT to_jsonb(COALESCE(array_agg(t), ARRAY[]::t[])) FROM t

_{Credit to Hannes Landeholm for pointing this out}

Uninstall Java 8 and clean your JDK_HOME and your JAVA_HOME enviromental paths. Then install 64bit JAVA 6 or 7 JDK of your preference.

I quickly found out there's someone already made a helper: slack-cleaner for this.

And for me it's just:

slack-cleaner --token=<TOKEN> --message --channel jenkins --user "*" --perform

This is perfect code but it cannot add a new row:

dataGridView1.Rows[rowIndex].Cells[columnIndex].Value = value;

But this code can insert a new row:

var index = this.dataGridView1.Rows.Add();
this.dataGridView1.Rows[index].Cells[1].Value = "1";
this.dataGridView1.Rows[index].Cells[2].Value = "Baqar";

Unfortunately we need to run docker-compose logs separately from docker-compose run. In order to get this to work reliably we need to suppress the docker-compose run exit status then redirect the log and exit with the right status.

#!/bin/bash
set -euo pipefail
docker-compose run app | tee app.log || failed=yes
docker-compose logs --no-color > docker-compose.log
[[ -z "${failed:-}" ]] || exit 1

1. Save and close all Internet Explorer windows and then, run Windows Task Manager to end the running processes in background.
2. Go to Control Panel.
3. Click Programs and choose the View installed updates instead.
4. Locate the following Windows Internet Explorer 11 or you can type "Internet Explorer" for a quick search.
5. Choose the Yes option from the following "Uninstall an update".
6. Please wait while Windows Internet Explorer 10 is being restored and reconfigured automatically.
7. Follow the Microsoft Windows wizard to restart your system.

Note: You can do it for as many earlier versions you want, i.e. IE9, IE8 and so on.

I don't see major issues with a regex solution. But, don't forget to preserve the fragment identifier (text after the #).

Here's my solution:

function RemoveParameterFromUrl(url, parameter) {
  return url
    .replace(new RegExp('[?&]' + parameter + '=[^&#]*(#.*)?$'), '$1')
    .replace(new RegExp('([?&])' + parameter + '=[^&]*&'), '$1');
}

And to bobince's point, yes - you'd need to escape . characters in parameter names.

Apparently some POST requests looks like a "GET" to the server (like Heroku...)

So I use this strategy and it works for me:

@RequestMapping(value = "/salvar", method = { RequestMethod.GET, RequestMethod.POST })

Yes you can have more than one class inside a .java file. At most one of them can be public. The others are package-private. They CANNOT be private or protected. If one is public, the file must have the name of that class. Otherwise ANYTHING can be given to that file as its name.

Having many classes inside one file means those classes are in the same package. So any other classes which are inside that package but not in that file can also use those classes. Moreover, when that package is imported, importing class can use them as well.

For a more detailed investigation, you can visit my blog post in here.

Short answer is no.

XAMPP is normally built around a specific PHP version to ensure plugins and modules are all compatible and working correctly.

If your project specifically needs PHP 5.3 - the cleanest method is simply reinstalling an older version of XAMPP with PHP 5.3 packaged into it.

XAMPP 1.7.7 was their last update before moving off PHP 5.3.

Yes, assignment is supported for structs. However, there are problems:

struct S {
   char * p;
};

struct S s1, s2;
s1.p = malloc(100);
s2 = s1;

Now the pointers of both structs point to the same block of memory - the compiler does not copy the pointed to data. It is now difficult to know which struct instance owns the data. This is why C++ invented the concept of user-definable assignment operators - you can write specific code to handle this case.

Use a table-valued parameter for your stored procedure.

When you pass it in from C# you'll add the parameter with the data type of SqlDb.Structured.

See here: http://msdn.microsoft.com/en-us/library/bb675163.aspx

Example:

// Assumes connection is an open SqlConnection object.
using (connection)
{
// Create a DataTable with the modified rows.
DataTable addedCategories =
  CategoriesDataTable.GetChanges(DataRowState.Added);

// Configure the SqlCommand and SqlParameter.
SqlCommand insertCommand = new SqlCommand(
    "usp_InsertCategories", connection);
insertCommand.CommandType = CommandType.StoredProcedure;
SqlParameter tvpParam = insertCommand.Parameters.AddWithValue(
    "@tvpNewCategories", addedCategories);
tvpParam.SqlDbType = SqlDbType.Structured;

// Execute the command.
insertCommand.ExecuteNonQuery();
}

Just thought I'd show how to do this with numpy's fancy indexing:

>>> import numpy
>>> some_list = ['1', 'B', '3', 'D', '5', 'F']
>>> numpy.array(some_list)[[0,-1]]
array(['1', 'F'], 
      dtype='|S1')

Note that it also supports arbitrary index locations, which the [::len(some_list)-1] method would not work for:

>>> numpy.array(some_list)[[0,2,-1]]
array(['1', '3', 'F'], 
      dtype='|S1')

As DSM points out, you can do something similar with itemgetter:

>>> import operator
>>> operator.itemgetter(0, 2, -1)(some_list)
('1', '3', 'F')

you can also check this link

SELECT * FROM master_question WHERE 1 ORDER BY question_id ASC LIMIT 20

for more detail click here

I implemented a solution like Kamil Szot's, and it has an undesired effect. I have not enough reputation to post this as a comment, so I post it here in case someone is trying that solution and reads this.

The solution is:

interface MyInterface {
    Name: string;
}

const MyClass = class {
    static Name: string;
};

However, using a class expression doesn't allow me to use MyClass as a type. If I write something like:

const myInstance: MyClass;

myInstance turns out to be of type any, and my editor shows the following error:

'MyClass' refers to a value, but is being used as a type here. Did you mean 'typeof MyClass'?ts(2749)

I end up losing a more important typing than the one I wanted to achieve with the interface for the static part of the class.

Val's solution using a decorator avoids this pitfall.

FWIW, htpasswd -n username will output the result directly to stdout, and avoid touching files altogether.

The best cross-browser solution is to use Modernizr.mq

link: https://modernizr.com/docs/#mq

Modernizr.mq allows for you to programmatically check if the current browser window state matches a media query.

var query = Modernizr.mq('(min-width: 900px)');
if (query) {
   // the browser window is larger than 900px
}

Note The browser does not support media queries (e.g. old IE) mq will always return false.

SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name,*
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID 
WHERE c.name LIKE '%YOUR_COLUMN%' 
ORDER BY schema_name, table_name;

In depth article by SQL Authority

Use This way is Better

if LEN(ISNULL(@Value,''))=0              

This check the field is empty or NULL

In short, yes.

Suppose we are on a 32-bit machine.

If it is little endian, the x in the memory will be something like:

       higher memory
          ----->
    +----+----+----+----+
    |0x01|0x00|0x00|0x00|
    +----+----+----+----+
    A
    |
   &x

so (char*)(&x) == 1, and *y+48 == '1'.

If it is big endian, it will be:

    +----+----+----+----+
    |0x00|0x00|0x00|0x01|
    +----+----+----+----+
    A
    |
   &x

so this one will be '0'.

Definition by How to Think About Algorithms, by Jeff Edmonds

A loop invariant is an assertion that is placed at the top of a loop and that must hold true every time the computation returns to the top of the loop.

I found out an easier way.

• go to File -> Settings -> Keymap
• Search for Execute Selection in Console and reassign it to a new shortcut, like Crl + Enter.

This is the same shortcut to the same action in Spyder and R-Studio.

I know when you said "contents" you didn't mean this, but if you want to find all the values of all the attributes of a webelement this is a pretty nifty way to do that with javascript in python:

everything = b.execute_script(
    'var element = arguments[0];'
    'var attributes = {};'
    'for (index = 0; index < element.attributes.length; ++index) {'
    '    attributes[element.attributes[index].name] = element.attributes[index].value };'
    'var properties = [];'
    'properties[0] = attributes;'
    'var element_text = element.textContent;'
    'properties[1] = element_text;'
    'var styles = getComputedStyle(element);'
    'var computed_styles = {};'
    'for (index = 0; index < styles.length; ++index) {'
    '    var value_ = styles.getPropertyValue(styles[index]);'
    '    computed_styles[styles[index]] = value_ };'
    'properties[2] = computed_styles;'
    'return properties;', element)

you can also get some extra data with element.__dict__.

I think this is about all the data you'd ever want to get from a webelement.

You could also simply convert the list to an array using ToArray, and then clone the array using Array.Clone(...). Depending on your needs, the methods included in the Array class could meet your needs.

My promisify version of a callback function is the P function:

var P = function() {_x000D_
  var self = this;_x000D_
  var method = arguments[0];_x000D_
  var params = Array.prototype.slice.call(arguments, 1);_x000D_
  return new Promise((resolve, reject) => {_x000D_
    if (method && typeof(method) == 'function') {_x000D_
      params.push(function(err, state) {_x000D_
        if (!err) return resolve(state)_x000D_
        else return reject(err);_x000D_
      });_x000D_
      method.apply(self, params);_x000D_
    } else return reject(new Error('not a function'));_x000D_
  });_x000D_
}_x000D_
var callback = function(par, callback) {_x000D_
  var rnd = Math.floor(Math.random() * 2) + 1;_x000D_
  return rnd > 1 ? callback(null, par) : callback(new Error("trap"));_x000D_
}_x000D_
_x000D_
callback("callback", (err, state) => err ? console.error(err) : console.log(state))_x000D_
callback("callback", (err, state) => err ? console.error(err) : console.log(state))_x000D_
callback("callback", (err, state) => err ? console.error(err) : console.log(state))_x000D_
callback("callback", (err, state) => err ? console.error(err) : console.log(state))_x000D_
_x000D_
P(callback, "promise").then(v => console.log(v)).catch(e => console.error(e))_x000D_
P(callback, "promise").then(v => console.log(v)).catch(e => console.error(e))_x000D_
P(callback, "promise").then(v => console.log(v)).catch(e => console.error(e))_x000D_
P(callback, "promise").then(v => console.log(v)).catch(e => console.error(e))

The P function requires that the callback signature must be callback(error,result).

When you stop an instance, it is 'deleted'. As such there's nothing to be charged for. If you have an Elastic IP or EBS, then you'll be charged for those - but nothing related to the instance itself.

If drv.Item("Quantity").Value < 5  Then

use this to like this

If Cint(drv.Item("Quantity").Value) < 5  Then

For JavaScript arrays, you use Both push() and concat() function.

var array = [1, 2, 3];
array.push(4, 5);         //use push for appending a single array.




var array1 = [1, 2, 3];
var array2 = [4, 5, 6];

var array3 = array1.concat(array2);   //It is better use concat for appending more then one array.

What about putting the query results in an array, where you can do a count($array) and use the query resulting rows after? Example:

$sc='SELECT * FROM comments';
$res=array();
foreach($db->query($sc) as $row){
    $res[]=$row;
}

echo "num rows: ".count($res);
echo "Select output:";
foreach($res as $row){ echo $row['comment'];}

Try this:

$('#id').change();

Works for me.

On one line together with setting the value: $('#id').val(16).change();

What I like to do is the following (but make sure to read to the end to use the proper type of constants):

internal static class ColumnKeys
{
    internal const string Date = "Date";
    internal const string Value = "Value";
    ...
}

Read this to know why const might not be what you want. Possible type of constants are:

• const fields. Do not use across assemblies (public or protected) if value might change in future because the value will be hardcoded at compile-time in those other assemblies. If you change the value, the old value will be used by the other assemblies until they are re-compiled.
• static readonly fields
• static property without set

You can use style property for this. For example, if you want to change border -

document.elm.style.border = "3px solid #FF0000";

similarly for color -

 document.getElementById("p2").style.color="blue";

Best thing is you define a class and do this -

document.getElementById("p2").className = "classname";

(Cross Browser artifacts must be considered accordingly).

SELECT  dateadd(dd,DAYS,'2013-09-07 00:00:00') DATES
INTO        #TEMP1
FROM
(SELECT TOP 365 colorder - 1 AS DAYS from master..syscolumns 
    WHERE id = -519536829 order by colorder) a

WHERE datediff(dd,dateadd(dd,DAYS,'2013-09-07 00:00:00'),'2013-09-13 00:00:00' ) >= 0 
    AND  dateadd(dd,DAYS,'2013-09-07 00:00:00') <=  '2013-09-13 00:00:00'  
    SELECT * FROM #TEMP1

I would suggest using a different approach. Add a button on the webpage that will copy the content of the table to the clipboard, with TAB chars between columns and newlines between rows. This way the "paste" function in Excel should work correctly and your web application will also work with many browsers and on many operating systems (linux, mac, mobile) and users will be able to use the data also with other spreadsheets or word processing programs.

The only tricky part is to copy to the clipboard because many browsers are security obsessed on this. A solution is to prepare the data already selected in a textarea, and show it to the user in a modal dialog box where you tell the user to copy the text (some will need to type Ctrl-C, others Command-c, others will use a "long touch" or a popup menu).

It would be nicer to have a standard copy-to-clipboard function that possibly requests a user confirmation... but this is not the case, unfortunately.

just right click on the desired folder and select git-bash Here option it will direct you to that folder and start working hope it will work.

import android.text.TextUtils;

if (!TextUtils.isEmpty(str)||!str.equalsIgnoreCase("") {
    ...
}

Try to remove any trace of cocoapods pods using pod deintegrate then Run pod install

var pause_menu = {
    pause_button : { someProperty : "prop1", someOther : "prop2" },
    resume_button : { resumeProp : "prop", resumeProp2 : false },
    quit_button : false
};

then:

pause_menu.pause_button.someProperty //evaluates to "prop1"

etc etc.

Check the default superclass's constructor. It need be public or protected.

From this answer: https://stackoverflow.com/a/30676267/541136 I have demonstrated that, while it's correct to define __ne__ in terms __eq__ - instead of

def __ne__(self, other):
    return not self.__eq__(other)

you should use:

def __ne__(self, other):
    return not self == other

I had several *.save files (emergency dumps from nano) from different NGINX config files in my sites-avilable dir. Once I deleted these .save files, NGINX restarted fine. I assumed these were harmless since there were no corresponding symlinks, but I guess I was wrong.

For Swift 4.2, 5

Pass date and format as whatever way you want. To choose format you can visit, NSDATEFORMATTER website:

static func dateFormatter(date: Date,dateFormat:String) -> String {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = dateFormat
    return dateFormatter.string(from: date)
}

You'll have to make a join:

SELECT A.SalesOrderID, B.Foo
FROM A
JOIN B bo ON bo.id = (
     SELECT TOP 1 id
     FROM B bi
     WHERE bi.SalesOrderID = a.SalesOrderID
     ORDER BY bi.whatever
     )
WHERE A.Date BETWEEN '2000-1-4' AND '2010-1-4'

, assuming that b.id is a PRIMARY KEY on B

In MS SQL 2005 and higher you may use this syntax:

SELECT SalesOrderID, Foo
FROM (
  SELECT A.SalesOrderId, B.Foo,
         ROW_NUMBER() OVER (PARTITION BY B.SalesOrderId ORDER BY B.whatever) AS rn
  FROM A
  JOIN B ON B.SalesOrderID = A.SalesOrderID
  WHERE A.Date BETWEEN '2000-1-4' AND '2010-1-4'
) i
WHERE rn

This will select exactly one record from B for each SalesOrderId.

Solution 1:

MAC + LINUX

run this command with sudo

sudo npm install -g yo

Windows

run cmd as administrator and then run this command again

Solution 2:

run this command and then try

npm config set registry http://registry.npmjs.org/

If you're interested in the pure string:

[myUrl absoluteString];

If you're interested in the path represented by the URL (and to be used with NSFileManager methods for example):

[myUrl path];

FYI: The 3.0 Google Analytics API will automatically refresh the access token if you have a refresh token when it expires so your script never needs refreshToken.

(See the Sign function in auth/apiOAuth2.php)

This may be of help to you. It isn't the stock WPF datagrid however.

I used DevExpress with a custom ColorFormatter behaviour. I couldn't find anything on the market that did this out of the box. This took me a few days to develop. My code attaached below, hopefully this helps someone out there.

Edit: I used POCO view models and MVVM however you could change this to not use POCO if you desire.

Viewmodel.cs

namespace ViewModel
{
    [POCOViewModel]
    public class Table2DViewModel
    {
        public ITable2DView Table2DView { get; set; }

        public DataTable ItemsTable { get; set; }


        public Table2DViewModel()
        {
        }

        public Table2DViewModel(MainViewModel mainViewModel, ITable2DView table2DView) : base(mainViewModel)
        {
            Table2DView = table2DView;   
            CreateTable();
        }

        private void CreateTable()
        {
            var dt = new DataTable();
            var xAxisStrings = new string[]{"X1","X2","X3"};
            var yAxisStrings = new string[]{"Y1","Y2","Y3"};

            //TODO determine your min, max number for your colours
            var minValue = 0;
            var maxValue = 100;
            Table2DView.SetColorFormatter(minValue,maxValue, null);

            //Add the columns
            dt.Columns.Add(" ", typeof(string));
            foreach (var x in xAxisStrings) dt.Columns.Add(x, typeof(double));

            //Add all the values
            double z = 0;
            for (var y = 0; y < yAxisStrings.Length; y++)
            {
                var dr = dt.NewRow();
                dr[" "] = yAxisStrings[y];
                for (var x = 0; x < xAxisStrings.Length; x++)
                {
                    //TODO put your actual values here!
                    dr[xAxisStrings[x]] = z++; //Add a random values
                }
                dt.Rows.Add(dr);
            }
            ItemsTable = dt;
        }


        public static Table2DViewModel Create(MainViewModel mainViewModel, ITable2DView table2DView)
        {
            var factory = ViewModelSource.Factory((MainViewModel mainVm, ITable2DView view) => new Table2DViewModel(mainVm, view));
            return factory(mainViewModel, table2DView);
        }
    }

}

IView.cs

namespace Interfaces
    {
        public interface ITable2DView
        {
            void SetColorFormatter(float minValue, float maxValue, ColorScaleFormat colorScaleFormat);
        }
    }

View.xaml.cs

namespace View
{
    public partial class Table2DView : ITable2DView
    {
        public Table2DView()
        {
            InitializeComponent();
        }

        static ColorScaleFormat defaultColorScaleFormat = new ColorScaleFormat
        {
            ColorMin = (Color)ColorConverter.ConvertFromString("#FFF8696B"),
            ColorMiddle = (Color)ColorConverter.ConvertFromString("#FFFFEB84"),
            ColorMax = (Color)ColorConverter.ConvertFromString("#FF63BE7B")
        };

        public void SetColorFormatter(float minValue, float maxValue, ColorScaleFormat colorScaleFormat = null)
        {
            if (colorScaleFormat == null) colorScaleFormat = defaultColorScaleFormat;
            ConditionBehavior.MinValue = minValue;
            ConditionBehavior.MaxValue = maxValue;
            ConditionBehavior.ColorScaleFormat = colorScaleFormat;
        }
    }
}

DynamicConditionBehavior.cs

namespace Behaviors
{
    public class DynamicConditionBehavior : Behavior<GridControl>
    {
        GridControl Grid => AssociatedObject;

        protected override void OnAttached()
        {
            base.OnAttached();
            Grid.ItemsSourceChanged += OnItemsSourceChanged;
        }

        protected override void OnDetaching()
        {
            Grid.ItemsSourceChanged -= OnItemsSourceChanged;
            base.OnDetaching();
        }

        public ColorScaleFormat ColorScaleFormat { get; set;}
        public float MinValue { get; set; }
        public float MaxValue { get; set; }

        private void OnItemsSourceChanged(object sender, EventArgs e)
        {
            var view = Grid.View as TableView;

            if (view == null) return;

            view.FormatConditions.Clear();

            foreach (var col in Grid.Columns)
            {
                view.FormatConditions.Add(new ColorScaleFormatCondition
                {
                    MinValue = MinValue,
                    MaxValue = MaxValue,
                    FieldName = col.FieldName,
                    Format = ColorScaleFormat,
                });
            }

        }
    }
}

View.xaml

<UserControl x:Class="View"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm" 
             xmlns:ViewModels="clr-namespace:ViewModel"
             xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
             xmlns:behaviors="clr-namespace:Behaviors"
             xmlns:dxdo="http://schemas.devexpress.com/winfx/2008/xaml/docking"
             DataContext="{dxmvvm:ViewModelSource Type={x:Type ViewModels:ViewModel}}"
             mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="800">

    <UserControl.Resources>
        <Style TargetType="{x:Type dxg:GridColumn}">
            <Setter Property="Width" Value="50"/>
            <Setter Property="HorizontalHeaderContentAlignment" Value="Center"/>
        </Style>

        <Style TargetType="{x:Type dxg:HeaderItemsControl}">
            <Setter Property="FontWeight" Value="DemiBold"/>
        </Style>
    </UserControl.Resources>

        <!--<dxmvvm:Interaction.Behaviors>
            <dxmvvm:EventToCommand EventName="" Command="{Binding OnLoadedCommand}"/>
        </dxmvvm:Interaction.Behaviors>-->
        <dxg:GridControl ItemsSource="{Binding ItemsTable}"
                     AutoGenerateColumns="AddNew"
                     EnableSmartColumnsGeneration="True">

        <dxmvvm:Interaction.Behaviors >
            <behaviors:DynamicConditionBehavior x:Name="ConditionBehavior" />
            </dxmvvm:Interaction.Behaviors>
            <dxg:GridControl.View>
                <dxg:TableView ShowGroupPanel="False"
                           AllowPerPixelScrolling="True"/>
            </dxg:GridControl.View>
        </dxg:GridControl>
  </UserControl>

Using my own local server.

Simply adding http://localhost/my-site as a URL in:

https://developers.facebook.com/apps/YOUR-APP-ID/fb-login/

worked for me.

I had a similar issue with Pandas, you need to use the iterrows() function to iterate through a Pandas dataset Pandas documentation for iterrows

data = pd.read_csv('foo.csv')
for index,item in data.iterrows():
    print('{} {}'.format(item["gravatar_id"], item["position"]))

note that you need to handle the index in the dataset that is also returned by the function.

You'll need to use UNION to combine the results of two queries. In your case:

SELECT ChargeNum, CategoryID, SUM(Hours)
FROM KnownHours
GROUP BY ChargeNum, CategoryID
UNION ALL
SELECT ChargeNum, 'Unknown' AS CategoryID, SUM(Hours)
FROM UnknownHours
GROUP BY ChargeNum

Note - If you use UNION ALL as in above, it's no slower than running the two queries separately as it does no duplicate-checking.

Following steps worked for me: 1. Goto Project -> Clean. 2. Delete your previous AVD and create a new one.

If you are in a linux environment all you have to do is to create a symlink to your .jar file from inside /etc/init.d/

sudo ln -s /path/to/your/myboot-app.jar /etc/init.d/myboot-app

Then you can start the application like any other service

sudo /etc/init.d/myboot-app start

To close the application

sudo /etc/init.d/myboot-app stop

This way, application will not terminate when you exit the terminal. And application will shutdown gracefully with stop command.

Now, I just started programing about a week ago, so nothing fancy, but I had this as a problem and came up with this, which may be easier for people who are just getting into programing to understand. It uses Euclid's method like in previous examples.

public class GCD {
  public static void main(String[] args){
    int x = Math.max(Integer.parseInt(args[0]),Integer.parseInt(args[1]));    
    int y = Math.min(Integer.parseInt(args[0]),Integer.parseInt(args[1]));     
    for (int r = x % y; r != 0; r = x % y){
      x = y;
      y = r;
    }
    System.out.println(y);
  }
}

len=`cat filename | wc -l`
len=$(( $len + 1 ))
l=$(( $len - 99 ))
sed -n "${l},${len}p" filename

first line takes the length (Total lines) of file then +1 in the total lines after that we have to fatch 100 records so, -99 from total length then just put the variables in the sed command to fetch the last 100 lines from file

I hope this will help you.

I had this exact same problem which made loss hours so i'm inspired to share my findings and solutions that worked for me.

1. Use an excel file

This is the approach I adopted. Instead of using a csv file, I used an excel file (.xlsx) with content like below.

id  username   email                token website

    johndoe   [email protected]        divostar.com
    bobstone  [email protected]        divosays.com

Notice that the id column has no value.

Next, connect to your DB using Microsoft SQL Server Management Studio and right click on your database and select import data (submenu under task). Select Microsoft Excel as source. When you arrive at the stage called "Select Source Tables and Views", click edit mappings. For id column under destination, click on it and select ignore . Don't check Enable Identity insert unless you want to mantain ids incases where you are importing data from another database and would like to maintain the auto increment id of the source db. Proceed to finish and that's it. Your data will be imported smoothly.

2. Using CSV file

In your csv file, make sure your data is like below.

id,username,email,token,website
,johndoe,[email protected],,divostar.com
,bobstone,[email protected],,divosays.com

Run the query below:

BULK INSERT Metrics FROM 'D:\Data Management\Data\CSV2\Production Data 2004 - 2016.csv '
WITH (FIRSTROW = 2, FIELDTERMINATOR = ',', ROWTERMINATOR = '\n');

The problem with this approach is that the CSV should be in the DB server or some shared folder that the DB can have access to otherwise you may get error like "Cannot opened file. The operating system returned error code 21 (The device is not ready)".

If you are connecting to a remote database, then you can upload your CSV to a directory on that server and reference the path in bulk insert.

3. Using CSV file and Microsoft SQL Server Management Studio import option

Launch your import data like in the first approach. For source, select Flat file Source and browse for your CSV file. Make sure the right menu (General, Columns, Advanced, Preview) are ok. Make sure to set the right delimiter under columns menu (Column delimiter). Just like in the excel approach above, click edit mappings. For id column under destination, click on it and select ignore .

Proceed to finish and that's it. Your data will be imported smoothly.

MediaElement YouTube API example

Wraps the YouTube API in an HTML5 Media API wrapper, so that it can be programmed against as if it was true HTML5 <video>.

<script src="jquery.js"></script>
<script src="mediaelement-and-player.min.js"></script>
<link rel="stylesheet" href="mediaelementplayer.css" />

<video width="640" height="360" id="player1" preload="none">
    <source type="video/youtube" src="http://www.youtube.com/watch?v=nOEw9iiopwI" />
</video>

<script>
    var player = new MediaElementPlayer('#player1');
</script>

The short answer is "yes". A sample ldapsearch command to query an Active Directory server is:

ldapsearch \
    -x -h ldapserver.mydomain.com \
    -D "[email protected]" \
    -W \
    -b "cn=users,dc=mydomain,dc=com" \
    -s sub "(cn=*)" cn mail sn

This would connect to an AD server at hostname ldapserver.mydomain.com as user [email protected], prompt for the password on the command line and show name and email details for users in the cn=users,dc=mydomain,dc=com subtree.

See Managing LDAP from the Command Line on Linux for more samples. See LDAP Query Basics for Microsoft Exchange documentation for samples using LDAP queries with Active Directory.

The reason the code isn't working is because lastrow is measured from whatever sheet is currently active, and "A:A500" (or other number) is not a valid range reference.

Private Sub CommandButton1_Click()
    Dim lastrow As Long

    lastrow = Sheets("Summary Info").Range("A65536").End(xlUp).Row    ' or + 1
    Range("A3:E3").Copy Destination:=Sheets("Summary Info").Range("A" & lastrow)
End Sub

In batch files, as in standard C programs, argument 0 contains the path to the currently executing script. You can use %~dp0 to get only the path portion of the 0th argument (which is the current script) - this path is always a fully qualified path.

You can also get the fully qualified path of your first argument by using %~f1, but this gives a path according to the current working directory, which is obviously not what you want.

Personally, I often use the %~dp0%~1 idiom in my batch file, which interpret the first argument relative to the path of the executing batch. It does have a shortcoming though: it miserably fails if the first argument is fully-qualified.

If you need to support both relative and absolute paths, you can make use of Frédéric Ménez's solution: temporarily change the current working directory.

Here's an example that'll demonstrate each of these techniques:

@echo off
echo %%~dp0 is "%~dp0"
echo %%0 is "%0"
echo %%~dpnx0 is "%~dpnx0"
echo %%~f1 is "%~f1"
echo %%~dp0%%~1 is "%~dp0%~1"

rem Temporarily change the current working directory, to retrieve a full path 
rem   to the first parameter
pushd .
cd %~dp0
echo batch-relative %%~f1 is "%~f1"
popd

If you save this as c:\temp\example.bat and the run it from c:\Users\Public as

c:\Users\Public>\temp\example.bat ..\windows

...you'll observe the following output:

%~dp0 is "C:\temp\"
%0 is "\temp\example.bat"
%~dpnx0 is "C:\temp\example.bat"
%~f1 is "C:\Users\windows"
%~dp0%~1 is "C:\temp\..\windows"
batch-relative %~f1 is "C:\Windows"

the documentation for the set of modifiers allowed on a batch argument can be found here: https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/call

Starting Python 3.8, and the introduction of assignment expressions (PEP 572) (:= operator), we can now capture the condition value re.search(pattern, statement) in a variable (let's all it match) in order to both check if it's not None and then re-use it within the body of the condition:

if match := re.search('I love (\w+)', statement):
  print(f'He loves {match.group(1)}')
elif match := re.search("Ich liebe (\w+)", statement):
  print(f'Er liebt {match.group(1)}')
elif match := re.search("Je t'aime (\w+)", statement):
  print(f'Il aime {match.group(1)}')

Perhaps you need to know how urls are mapped too, since I suffered 404 for hours. There are two kinds of handlers handling requests. BeanNameUrlHandlerMapping and SimpleUrlHandlerMapping. When we defined a servlet-mapping, we are using SimpleUrlHandlerMapping. One thing we need to know is these two handlers share a common property called alwaysUseFullPath which defaults to false.

false here means Spring will not use the full path to mapp a url to a controller. What does it mean? It means when you define a servlet-mapping:

<servlet-mapping>
    <servlet-name>viewServlet</servlet-name>
    <url-pattern>/perfix/*</url-pattern>
</servlet-mapping>

the handler will actually use the * part to find the controller. For example, the following controller will face a 404 error when you request it using /perfix/api/feature/doSomething

@Controller()
@RequestMapping("/perfix/api/feature")
public class MyController {
    @RequestMapping(value = "/doSomething", method = RequestMethod.GET) 
    @ResponseBody
    public String doSomething(HttpServletRequest request) {
        ....
    }
}

It is a perfect match, right? But why 404. As mentioned before, default value of alwaysUseFullPath is false, which means in your request, only /api/feature/doSomething is used to find a corresponding Controller, but there is no Controller cares about that path. You need to either change your url to /perfix/perfix/api/feature/doSomething or remove perfix from MyController base @RequestingMapping.

Use foreach($fields as &$field){ - so you will work with the original array.

Here is more about passing by reference.

A little late to the party, but if you are looking for a solution like Yury's the following code will help you identify if the issue is related to a self-sign certificate and, if so ignore the self-sign error. You could obviously check for other SSL errors if you so desired.

The code we use (courtesy of Microsoft - http://msdn.microsoft.com/en-us/library/office/dd633677(v=exchg.80).aspx) is as follows:

  private static bool CertificateValidationCallBack(
         object sender,
         System.Security.Cryptography.X509Certificates.X509Certificate certificate,
         System.Security.Cryptography.X509Certificates.X509Chain chain,
         System.Net.Security.SslPolicyErrors sslPolicyErrors)
    {
  // If the certificate is a valid, signed certificate, return true.
  if (sslPolicyErrors == System.Net.Security.SslPolicyErrors.None)
  {
    return true;
  }

  // If there are errors in the certificate chain, look at each error to determine the cause.
  if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateChainErrors) != 0)
  {
    if (chain != null && chain.ChainStatus != null)
    {
      foreach (System.Security.Cryptography.X509Certificates.X509ChainStatus status in chain.ChainStatus)
      {
        if ((certificate.Subject == certificate.Issuer) &&
           (status.Status == System.Security.Cryptography.X509Certificates.X509ChainStatusFlags.UntrustedRoot))
        {
          // Self-signed certificates with an untrusted root are valid. 
          continue;
        }
        else
        {
          if (status.Status != System.Security.Cryptography.X509Certificates.X509ChainStatusFlags.NoError)
          {
            // If there are any other errors in the certificate chain, the certificate is invalid,
         // so the method returns false.
            return false;
          }
        }
      }
    }

    // When processing reaches this line, the only errors in the certificate chain are 
// untrusted root errors for self-signed certificates. These certificates are valid
// for default Exchange server installations, so return true.
    return true;
  }
  else
  {
 // In all other cases, return false.
    return false;
  }
}

What you have from the server is a string like below:

var data = '[{"id":"197","category":"Damskie"},{"id":"198","category":"M\u0119skie"}]';

Then you can use JSON.parse function to change it to an object. Then you access the category like below:

var dataObj = JSON.parse(data);

console.log(dataObj[0].category); //will return Damskie
console.log(dataObj[1].category); //will return Meskie

Swift 4.0

Store:

let arrayFruit = ["Apple","Banana","Orange","Grapes","Watermelon"]    

 //store in user default
 UserDefaults.standard.set(arrayFruit, forKey: "arrayFruit")

Fetch:

if let arr = UserDefaults.standard.array(forKey: "arrayFruit") as? [String]{
        print(arr)
    }

Mozilla recently released the awesome L20n or localization 2.0. In their own words L20n is

an open source, localization-specific scripting language used to process gender, plurals, conjugations, and most of the other quirky elements of natural language.

Their js implementation is on the github L20n repository.

Sometime in the future. This is I think as simple as it can get.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Median
{
    class Program
    {
        static void Main(string[] args)
        {
            var mediaValue = 0.0;
            var items = new[] { 1, 2, 3, 4,5 };
            var getLengthItems = items.Length;
            Array.Sort(items);
            if (getLengthItems % 2 == 0)
            {
                var firstValue = items[(items.Length / 2) - 1];
                var secondValue = items[(items.Length / 2)];
                mediaValue = (firstValue + secondValue) / 2.0;
            }
            if (getLengthItems % 2 == 1)
            {
                mediaValue = items[(items.Length / 2)];
            }
            Console.WriteLine(mediaValue);
            Console.WriteLine("Enter to Exit!");
            Console.ReadKey();
        }
    }
}

GROUP BY YEAR(record_date), MONTH(record_date)

Check out the date and time functions in MySQL.

I had a similar problem, but for me the solution was slightly different. In my case, I used a Category to extend an existing class (UIImage for some resizing capabilities - see this howto in case you're interested) and forgot to add the *.m file to the build target. Stupid error, but not always obvious when it happens where to look. I thought it's worth sharing...

The readr package has a function to do everything for you.

install.packages("readr") # you only need to do this one time on your system
library(readr)
mystring <- read_file("path/to/myfile.txt")

This replaces the version in the package stringr.

Regarding seek() there's not too much to worry about.

First of all, it is useful when operating over an open file.

It's important to note that its syntax is as follows:

fp.seek(offset, from_what)

where fp is the file pointer you're working with; offset means how many positions you will move; from_what defines your point of reference:

• 0: means your reference point is the beginning of the file
• 1: means your reference point is the current file position
• 2: means your reference point is the end of the file

if omitted, from_what defaults to 0.

Never forget that when managing files, there'll always be a position inside that file where you are currently working on. When just open, that position is the beginning of the file, but as you work with it, you may advance.
seek will be useful to you when you need to walk along that open file, just as a path you are traveling into.

For that I have written the following code in the "ActionPeformed(...)" method of the "Start" button

You need that code to be in the actionPerformed(...) of the ActionListener registered with the Start button, not for the Start button itself.

You can add a simple ActionListener like this:

JButton startButton = new JButton("Start");
startButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent ae) {
        startButton.setEnabled(false);
        stopButton.setEnabled(true);
     }
   }
 );

note that your startButton above will need to be final in the above example if you want to create the anonymous listener in local scope.

L = ['L','O','L']
makeitastring = ''.join(map(str, L))

Correct, the 1.7.12.4 (Apple Git-37) does not come with gitk. You can install a more recent version of git + git-ui as a separate formula by using brew. More thorough instructions located here: http://www.moncefbelyamani.com/how-to-install-xcode-homebrew-git-rvm-ruby-on-mac/ (see this commit extracting git-gui/gitk into its own formula: https://github.com/Homebrew/homebrew-core/commit/dfa3ccf1e7d3901e371b5140b935839ba9d8b706)

Run the following commands at the terminal:

brew update
brew install git
brew install git-gui

If you get an error indicating it could not link git, then you may need to change permissions/owners of the files it mentions.

Once completed, run:

type -a git

And make sure it shows:

/usr/local/bin/git

If it does not, run:

brew doctor

And make the path change to put /usr/local/bin earlier in the path. Now, gitk should be on your path (along with an updated version of git).

You can also simply set the Source attribute rather than using the child elements. To do this your class needs to return the image as a Bitmap Image. Here is an example of one way I've done it

<Image Width="90" Height="90" 
       Source="{Binding Path=ImageSource}"
       Margin="0,0,0,5" />

And the class property is simply this

public object ImageSource {
    get {
        BitmapImage image = new BitmapImage();

        try {
            image.BeginInit();
            image.CacheOption = BitmapCacheOption.OnLoad;
            image.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
            image.UriSource = new Uri( FullPath, UriKind.Absolute );
            image.EndInit();
        }
        catch{
            return DependencyProperty.UnsetValue;
        }

        return image;
    }
}

I suppose it may be a little more work than the value converter, but it is another option.

The log file is not visible because the slf4j configuration file location needs to passed to the java run command using the following arguments .(e.g.)

-Dlogging.config={file_location}\log4j2.xml 

or this:

-Dlog4j.configurationFile={file_location}\log4j2.xml

Have you tried to use CTRL-F5 to update the page?

I needed a fat static lib for JsonKit so created a static lib project in Xcode and then ran this bash script in the project directory. So long as you've configured the xcode project with "Build active configuration only" turned off, you should get all architectures in one lib.

#!/bin/bash
xcodebuild -sdk iphoneos
xcodebuild -sdk iphonesimulator
lipo -create -output libJsonKit.a build/Release-iphoneos/libJsonKit.a build/Release-iphonesimulator/libJsonKit.a

Objects, {} in JavaScript does not have the method .map(). It's only for Arrays, [].

So in order for your code to work change data.map() to data.products.map() since products is an array which you can iterate upon.

Or you can use the command line below from version 4.4.x.

conda config --set proxy_servers.http http://id:pw@address:port
conda config --set proxy_servers.https https://id:pw@address:port

When a new user is created in ORACLE, an empty work area for tables and views is also automatically created. That work area is called a 'Schema'. Because of the tightly coupled relationship between users and schemas, the terms are often used synonymously. SQL Developer will, by default, show the empty schema that belongs to the user you connected with if it is indeed empty.

However, if you click to expand the part of the tree titled 'Other Users', you'll see other users/schemas that your user has access to. In there, you may find the tables and views you are seeking if you select the correct user/schema. An object only lives in the schema that owns it.

Still, it would be nice if the application allowed us to pick our desired schema closer to the root of the tree instead of forcing us to go searching for it. Other answers have offered workarounds such as:

1. Logging in as the desired user/schema to begin with.
2. Using a different Tool.
3. Ignoring the tree and just executing: alter session set current_schema = otheruser;
4. Creating a startup script to set the schema every time the application loads.

In the end, I searched and found another free tool that seems to solve this particular usability issue called DBeaver.

It's all a bit confusing because the word schema is overloaded. Schema could also be used to describe the database of your application. To get more clarity, read more about the term schema as it is used in the ORACLE context.

Here's a complete (yet simple) example of redirecting after X seconds, while updating a counter div:

<html>_x000D_
<body>_x000D_
    <div id="counter">5</div>_x000D_
    <script>_x000D_
        setInterval(function() {_x000D_
            var div = document.querySelector("#counter");_x000D_
            var count = div.textContent * 1 - 1;_x000D_
            div.textContent = count;_x000D_
            if (count <= 0) {_x000D_
                window.location.replace("https://example.com");_x000D_
            }_x000D_
        }, 1000);_x000D_
    </script>_x000D_
</body>_x000D_
</html>

The initial content of the counter div is the number of seconds to wait.

Try this:

var keys = [];
for (var key in dictionary) {
  if (dictionary.hasOwnProperty(key)) {
    keys.push(key);
  }
}

hasOwnProperty is needed because it's possible to insert keys into the prototype object of dictionary. But you typically don't want those keys included in your list.

For example, if you do this:

Object.prototype.c = 3;
var dictionary = {a: 1, b: 2};

and then do a for...in loop over dictionary, you'll get a and b, but you'll also get c.

// Month here is 1-indexed (January is 1, February is 2, etc). This is
// because we're using 0 as the day so that it returns the last day
// of the last month, so you have to add 1 to the month number 
// so it returns the correct amount of days
function daysInMonth (month, year) {
    return new Date(year, month, 0).getDate();
}

// July
daysInMonth(7,2009); // 31
// February
daysInMonth(2,2009); // 28
daysInMonth(2,2008); // 29

This was helpful to use in COGNOS because creating a SQL "Not in" statement in Cognos was allowed, but it took too long to run. I had manually coded table A to join to table B in in Cognos as A.key "not in" B.key, but the query was taking too long/not returning results after 5 minutes.

For anyone else that is looking for a "NOT IN" solution in Cognos, here is what I did. Create a Query that joins table A and B with a LEFT JOIN in Cognos by selecting link type: table A.Key has "0 to N" values in table B, then added a Filter (these correspond to Where Clauses) for: table B.Key is NULL.

Ran fast and like a charm.