The easiest way would be to delete the plugins folder. Run this command: cordova prepare But, before you run it, you can check each plugin's version that you think would work for your build on Cordova's plugin repository website, and then you should modify the config.xml file, manually. Use upper carrots, "^" in the version field of the universal modeling language file, "config," to indicate that you want the specified plugin to update to the latest version in the future (the next time you run the command.)

Swift:

I have a UILabel which shows TimeStamp over a Camera Preview.

    var timeStampTimer : NSTimer?
    var dateEnabled:  Bool?
    var timeEnabled: Bool?
   @IBOutlet weak var timeStampLabel: UILabel!

override func viewDidLoad() {
        super.viewDidLoad()
//Setting Initial Values to be false.
        dateEnabled =  false
        timeEnabled =  false
}

override func viewWillAppear(animated: Bool) {

        //Current Date and Time on Preview View
        timeStampLabel.text = timeStamp
        self.timeStampTimer = NSTimer.scheduledTimerWithTimeInterval(1.0,target: self, selector: Selector("updateCurrentDateAndTimeOnTimeStamperLabel"),userInfo: nil,repeats: true)
}

func updateCurrentDateAndTimeOnTimeStamperLabel()
    {
//Every Second, it updates time.

        switch (dateEnabled, timeEnabled) {
        case (true?, true?):
            timeStampLabel.text =  NSDateFormatter.localizedStringFromDate(NSDate(), dateStyle: .LongStyle, timeStyle: .MediumStyle)
            break;
        case (true?, false?):
            timeStampLabel.text = NSDateFormatter.localizedStringFromDate(NSDate(), dateStyle: .LongStyle, timeStyle: .NoStyle)
            break;

        case (false?, true?):
            timeStampLabel.text = NSDateFormatter.localizedStringFromDate(NSDate(), dateStyle: .NoStyle, timeStyle: .MediumStyle)
            break;
        case (false?, false?):
            timeStampLabel.text =  NSDateFormatter.localizedStringFromDate(NSDate(), dateStyle: .NoStyle, timeStyle: .NoStyle)
            break;
        default:
            break;

        }
    }

I am setting up a setting Button to trigger a alertView.

@IBAction func settingsButton(sender : AnyObject) {


let cameraSettingsAlert = UIAlertController(title: NSLocalizedString("Please choose a course", comment: ""), message: NSLocalizedString("", comment: ""), preferredStyle: .ActionSheet)

let timeStampOnAction = UIAlertAction(title: NSLocalizedString("Time Stamp on Photo", comment: ""), style: .Default) { action in

    self.dateEnabled = true
    self.timeEnabled =  true

}
let timeStampOffAction = UIAlertAction(title: NSLocalizedString("TimeStamp Off", comment: ""), style: .Default) { action in

    self.dateEnabled = false
    self.timeEnabled =  false

}
let dateOnlyAction = UIAlertAction(title: NSLocalizedString("Date Only", comment: ""), style: .Default) { action in

    self.dateEnabled = true
    self.timeEnabled =  false


}
let timeOnlyAction = UIAlertAction(title: NSLocalizedString("Time Only", comment: ""), style: .Default) { action in

    self.dateEnabled = false
    self.timeEnabled =  true
}

let cancel = UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .Cancel) { action in

}
cameraSettingsAlert.addAction(cancel)
cameraSettingsAlert.addAction(timeStampOnAction)
cameraSettingsAlert.addAction(timeStampOffAction)
cameraSettingsAlert.addAction(dateOnlyAction)
cameraSettingsAlert.addAction(timeOnlyAction)

self.presentViewController(cameraSettingsAlert, animated: true, completion: nil)

}

let cap = (str) => {_x000D_
  let arr = str.split(' ');_x000D_
  arr.forEach(function(item, index) {_x000D_
    arr[index] = item.replace(item[0], item[0].toUpperCase());_x000D_
  });_x000D_
_x000D_
  return arr.join(' ');_x000D_
};_x000D_
_x000D_
console.log(cap("I'm a little tea pot"));

Fast Readable Version see benchmark http://jsben.ch/k3JVz

Look at the following example code:

public class MyWorker
{
    public SharedData state;
    public void DoWork(SharedData someData)
    {
        this.state = someData;
        while (true) ;
    }

}

public class SharedData {
    X myX;
    public getX() { etc
    public setX(anX) { etc

}

public class Program
{
    public static void Main()
    {
        SharedData data = new SharedDate()
        MyWorker work1 = new MyWorker(data);
        MyWorker work2 = new MyWorker(data);
        Thread thread = new Thread(new ThreadStart(work1.DoWork));
        thread.Start();
        Thread thread2 = new Thread(new ThreadStart(work2.DoWork));
        thread2.Start();
    }
}

In this case, the thread class MyWorker has a variable state. We initialise it with the same object. Now you can see that the two workers access the same SharedData object. Changes made by one worker are visible to the other.

You have quite a few remaining issues. How does worker 2 know when changes have been made by worker 1 and vice-versa? How do you prevent conflicting changes? Maybe read: this tutorial.

The best way I've found to do it is run Reloader

It allows you to define configmaps or secrets to watch, when they get updated, a rolling update of your deployment is performed. Here's an example:

You have a deployment foo and a ConfigMap called foo-configmap. You want to roll the pods of the deployment every time the configmap is changed. You need to run Reloader with:

kubectl apply -f https://raw.githubusercontent.com/stakater/Reloader/master/deployments/kubernetes/reloader.yaml

Then specify this annotation in your deployment:

kind: Deployment
metadata:
  annotations:
    configmap.reloader.stakater.com/reload: "foo-configmap"
  name: foo
...

You can compare string with below functions.

NSString *first = @"abc";
NSString *second = @"abc";
NSString *third = [[NSString alloc] initWithString:@"abc"];
NSLog(@"%d", (second == third))  
NSLog(@"%d", (first == second)); 
NSLog(@"%d", [first isEqualToString:second]); 
NSLog(@"%d", [first isEqualToString:third]); 

Output will be :-
    0
    1
    1
    1

This is my implementation for this question. This program allows numbers, alphabets and special characters with input string but simply ignore them while processing the string.

CODE:

import java.util.Scanner;
import java.util.Stack;

public class StringCheck {

    public static void main(String[] args) {
        boolean flag =false;
        Stack<Character> input = new Stack<Character>();
        System.out.println("Enter your String to check:");
        Scanner scanner = new Scanner(System.in);
        String sinput = scanner.nextLine();
        char[] c = new char[15];
        c = sinput.toCharArray();
        for (int i = 0; i < c.length; i++) {
            if (c[i] == '{' || c[i] == '(' || c[i] == '[')
                input.push(c[i]);
            else if (c[i] == ']') {
                if (input.pop() == '[') {
                    flag = true;
                    continue;
                } else {
                    flag = false;
                    break;
                }
            } else if (c[i] == ')') {
                if (input.pop() == '(') {
                    flag = true;
                    continue;
                } else {
                    flag = false;
                    break;
                }
            } else if (c[i] == '}') {
                if (input.pop() == '{') {
                    flag = true;
                    continue;
                } else {
                    flag = false;
                    break;
                }
            }
        }
        if (flag == true)
            System.out.println("Valid String");
        else
            System.out.println("Invalid String");
        scanner.close();

    }

}

d = dict([(x,0) for x in a])

**edit Tim's solution is better because it uses generators see the comment to his answer.

If you want to merge the filters (eg. CSV and Excel files), use this formula:

OpenFileDialog of = new OpenFileDialog();
of.Filter = "CSV files (*.csv)|*.csv|Excel Files|*.xls;*.xlsx";

Or if you want to see XML or PDF files in one time use this:

of.Filter = @" XML or PDF |*.xml;*.pdf";

You can do the following:

Assuming your container div has a class "yellow".

.yellow div {
    // Apply margin to every child in this container
    margin: 10px;
}

.yellow div:first-child, .yellow div:nth-child(3n+1) {
    // Remove the margin on the left side on the very first and then every fourth element (for example)
    margin-left: 0;
}

.yellow div:last-child {
    // Remove the right side margin on the last element
    margin-right: 0;
}

The number 3n+1 equals every fourth element outputted and will clearly only work if you know how many will be displayed in a row, but it should illustrate the example. More details regarding nth-child here.

Note: For :first-child to work in IE8 and earlier, a <!DOCTYPE> must be declared.

Note2: The :nth-child() selector is supported in all major browsers, except IE8 and earlier.

If you want a distiction for this case I would recommend to use a matrix instead, where:

matrix([1,2,3]) == matrix([1,2,3]).transpose()

gives:

matrix([[ True, False, False],
        [False,  True, False],
        [False, False,  True]], dtype=bool)

You can also use a ndarray explicitly adding a second dimension:

array([1,2,3])[None,:]
#array([[1, 2, 3]])

and:

array([1,2,3])[:,None]
#array([[1],
#       [2],
#       [3]])

This should work:

reload(my.module)

From the Python docs

Reload a previously imported module. The argument must be a module object, so it must have been successfully imported before. This is useful if you have edited the module source file using an external editor and want to try out the new version without leaving the Python interpreter.

If running Python 3.4 and up, do import importlib, then do importlib.reload(nameOfModule).

Don't forget the caveats of using this method:

• When a module is reloaded, its dictionary (containing the module’s global variables) is retained. Redefinitions of names will override the old definitions, so this is generally not a problem, but if the new version of a module does not define a name that was defined by the old version, the old definition is not removed.

• If a module imports objects from another module using from ... import ..., calling reload() for the other module does not redefine the objects imported from it — one way around this is to re-execute the from statement, another is to use import and qualified names (module.*name*) instead.

• If a module instantiates instances of a class, reloading the module that defines the class does not affect the method definitions of the instances — they continue to use the old class definition. The same is true for derived classes.

I am sure this can help. Create fileA anywhere in the directory and export all the functions.

export const func1=()=>{
    // do stuff
}
export const func2=()=>{
    // do stuff 
}
export const func3=()=>{
    // do stuff 
}
export const func4=()=>{
    // do stuff 
}
export const func5=()=>{
    // do stuff 
}

Here, in your React component class, you can simply write one import statement.

import React from 'react';
import {func1,func2,func3} from 'path_to_fileA';

class HtmlComponents extends React.Component {
    constructor(props){
        super(props);
        this.rippleClickFunction=this.rippleClickFunction.bind(this);
    }
    rippleClickFunction(){
        //do stuff. 
        // foo==bar
        func1(data);
        func2(data)
    }
   render() {
      return (
         <article>
             <h1>React Components</h1>
             <RippleButton onClick={this.rippleClickFunction}/>
         </article>
      );
   }
}

export default HtmlComponents;

Change debug port of your server configured in the Intelli J.

It will be fixed.

Just a caution

If you tried

SELECT colA, colB FROM tableA WHERE colA > 1
UNION
SELECT colX, colA FROM tableB WHERE colA > 1

compared to:

SELECT * 
  FROM (SELECT colA, colB FROM tableA
        UNION
        SELECT colX, colA FROM tableB) 
 WHERE colA > 1

Then in the second query, the colA in the where clause will actually have the colX from tableB, making it a very different query. If columns are being aliased in this way, it can get confusing.

All the answers here are just using a TextBox or trying to implement text selection manually, which leads to poor performance or non-native behaviour (blinking caret in TextBox, no keyboard support in manual implementations etc.)

After hours of digging around and reading the WPF source code, I instead discovered a way of enabling the native WPF text selection for TextBlock controls (or really any other controls). Most of the functionality around text selection is implemented in System.Windows.Documents.TextEditor system class.

To enable text selection for your control you need to do two things:

1. Call TextEditor.RegisterCommandHandlers() once to register class event handlers

2. Create an instance of TextEditor for each instance of your class and pass the underlying instance of your System.Windows.Documents.ITextContainer to it

There's also a requirement that your control's Focusable property is set to True.

This is it! Sounds easy, but unfortunately TextEditor class is marked as internal. So I had to write a reflection wrapper around it:

class TextEditorWrapper
{
    private static readonly Type TextEditorType = Type.GetType("System.Windows.Documents.TextEditor, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35");
    private static readonly PropertyInfo IsReadOnlyProp = TextEditorType.GetProperty("IsReadOnly", BindingFlags.Instance | BindingFlags.NonPublic);
    private static readonly PropertyInfo TextViewProp = TextEditorType.GetProperty("TextView", BindingFlags.Instance | BindingFlags.NonPublic);
    private static readonly MethodInfo RegisterMethod = TextEditorType.GetMethod("RegisterCommandHandlers", 
        BindingFlags.Static | BindingFlags.NonPublic, null, new[] { typeof(Type), typeof(bool), typeof(bool), typeof(bool) }, null);

    private static readonly Type TextContainerType = Type.GetType("System.Windows.Documents.ITextContainer, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35");
    private static readonly PropertyInfo TextContainerTextViewProp = TextContainerType.GetProperty("TextView");

    private static readonly PropertyInfo TextContainerProp = typeof(TextBlock).GetProperty("TextContainer", BindingFlags.Instance | BindingFlags.NonPublic);

    public static void RegisterCommandHandlers(Type controlType, bool acceptsRichContent, bool readOnly, bool registerEventListeners)
    {
        RegisterMethod.Invoke(null, new object[] { controlType, acceptsRichContent, readOnly, registerEventListeners });
    }

    public static TextEditorWrapper CreateFor(TextBlock tb)
    {
        var textContainer = TextContainerProp.GetValue(tb);

        var editor = new TextEditorWrapper(textContainer, tb, false);
        IsReadOnlyProp.SetValue(editor._editor, true);
        TextViewProp.SetValue(editor._editor, TextContainerTextViewProp.GetValue(textContainer));

        return editor;
    }

    private readonly object _editor;

    public TextEditorWrapper(object textContainer, FrameworkElement uiScope, bool isUndoEnabled)
    {
        _editor = Activator.CreateInstance(TextEditorType, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.CreateInstance, 
            null, new[] { textContainer, uiScope, isUndoEnabled }, null);
    }
}

I also created a SelectableTextBlock derived from TextBlock that takes the steps noted above:

public class SelectableTextBlock : TextBlock
{
    static SelectableTextBlock()
    {
        FocusableProperty.OverrideMetadata(typeof(SelectableTextBlock), new FrameworkPropertyMetadata(true));
        TextEditorWrapper.RegisterCommandHandlers(typeof(SelectableTextBlock), true, true, true);

        // remove the focus rectangle around the control
        FocusVisualStyleProperty.OverrideMetadata(typeof(SelectableTextBlock), new FrameworkPropertyMetadata((object)null));
    }

    private readonly TextEditorWrapper _editor;

    public SelectableTextBlock()
    {
        _editor = TextEditorWrapper.CreateFor(this);
    }
}

Another option would be to create an attached property for TextBlock to enable text selection on demand. In this case, to disable the selection again, one needs to detach a TextEditor by using the reflection equivalent of this code:

_editor.TextContainer.TextView = null;
_editor.OnDetach();
_editor = null;

Presuming you're talking about dynamic runtime loading of DLLs, you're looking for LoadLibrary and GetProAddress. There's an example on MSDN.

Visual Studio 2015:

Project => Your Application Properties. Each argument can be separated using space. If you have a space in between for the same argument, put double quotes as shown in the example below.

        static void Main(string[] args)
        {
            if(args == null || args.Length == 0)
            {
                Console.WriteLine("Please specify arguments!");
            }
            else
            {
                Console.WriteLine(args[0]);     // First
                Console.WriteLine(args[1]);     // Second Argument
            }
        }

NullPointerExceptions are among the easier exceptions to diagnose, frequently. Whenever you get an exception in Java and you see the stack trace ( that's what your second quote-block is called, by the way ), you read from top to bottom. Often, you will see exceptions that start in Java library code or in native implementations methods, for diagnosis you can just skip past those until you see a code file that you wrote.

Then you like at the line indicated and look at each of the objects ( instantiated classes ) on that line -- one of them was not created and you tried to use it. You can start by looking up in your code to see if you called the constructor on that object. If you didn't, then that's your problem, you need to instantiate that object by calling new Classname( arguments ). Another frequent cause of NullPointerExceptions is accidentally declaring an object with local scope when there is an instance variable with the same name.

In your case, the exception occurred in your constructor for Workshop on line 75. <init> means the constructor for a class. If you look on that line in your code, you'll see the line

denimjeansButton.addItemListener(this);

There are fairly clearly two objects on this line: denimjeansButton and this. this is synonymous with the class instance you are currently in and you're in the constructor, so it can't be this. denimjeansButton is your culprit. You never instantiated that object. Either remove the reference to the instance variable denimjeansButton or instantiate it.

The best way is to do the following:
HTML:Sticky Footer
CSS: CSS for Sticky Footer
HTML Code Sample:

<div class="container">
  <div class="page-header">
    <h1>Sticky footer</h1>
  </div>
  <p class="lead">Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS.</p>
  <p>Use <a href="../sticky-footer-navbar">the sticky footer with a fixed navbar</a> if need be, too.</p>
</div>

<footer class="footer">
  <div class="container">
    <p class="text-muted">Place sticky footer content here.</p>
  </div>
</footer>

CSS Code Sample:

    html {
  position: relative;
  min-height: 100%;
}
body {
  /* Margin bottom by footer height */
  margin-bottom: 60px;
}
.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  /* Set the fixed height of the footer here */
  height: 60px;
  background-color: #f5f5f5;
}

Another little tweak might make it more perfect (depends on your project), so it will not affect footer on mobile views.

@media (max-width:768px){ .footer{position:absolute;width:100%;} }
@media (min-width:768px){ .footer{position:absolute;bottom:0;height:60px;width:100%;}}

You might want to do this when you obtain data as objects from databases:

// Suppose 'result' is the end product from some query $query

$result = $mysqli->query($query);
$result = db_result_to_array($result);

function db_result_to_array($result)
{
    $res_array = array();

    for ($count=0; $row = $result->fetch_assoc(); $count++)
        $res_array[$count] = $row;

    return $res_array;
}

If you are interested in the indexes, the best choice is np.argsort(a)

a = np.random.randint(0, 100, 10)
sorted_idx = np.argsort(a)

My approach was a mixture of things.

My objective was to have a grid adapting to the screen size. I wanted 3 columns for lg, 2 columns for sm and md, and 1 column for xs.

First, I created the following scope function, using angular $window service:

$scope.findColNumberPerRow = function() {
    var nCols;
    var width = $window.innerWidth;

    if (width < 768) {
        // xs
        nCols = 1;
    }
    else if(width >= 768 && width < 1200) {
         // sm and md
         nCols = 2
    } else if (width >= 1200) {
        // lg
        nCols = 3;
    }
    return nCols;
};

Then, I used the class proposed by @Cumulo Nimbus:

.new-row {
    clear: left;
}

In the div containing the ng-repeat, I added the resizable directive, as explained in this page, so that every time window is resized, angular $window service is updated with the new values.

Ultimately, in the repeated div I have:

ng-repeat="user in users" ng-class="{'new-row': ($index % findColNumberPerRow() === 0) }"

Please, let me know any flaws in this approach.

Hope it can be helpful.

delete(sessions, "anykey")

These days, nothing will crash.

Find_or_create is now deprecated, you should use an AR Relation instead plus first_or_create, like so:

TombolaEntry.where("lower(name) = ?", self.name.downcase).first_or_create(name: self.name)

This will return the first matched object, or create one for you if none exists.

My recipe to fix it:

1. DID NOT WORK >> Set as system environment variable: I had set the environment variable in my mac bash_profile, however, Tomcat did not see that variable.

2. DID NOT WORK >> setenv.sh: Apache's recommendation was to have user-defined environment variables in setenv.sh file and I did that.

3. THIS WORKED!! >> After a little research into Tomcat startup scripts, I found that environment variables set using setenv.sh are lost during the startup. So I had to edit my catalina.sh against the recommendation of Apache and that did the trick.

Add your -DUSER_DEFINED variable in the run command in catalina.sh.

eval exec "\"$_RUNJAVA\"" "\"$LOGGING_CONFIG\"" $LOGGING_MANAGER $JAVA_OPTS $CATALINA_OPTS \
  -classpath "\"$CLASSPATH\"" \
  -Djava.security.manager \
  -Djava.security.policy=="\"$CATALINA_BASE/conf/catalina.policy\"" \
  -Dcatalina.base="\"$CATALINA_BASE\"" \
  -Dcatalina.home="\"$CATALINA_HOME\"" \
  -Djava.io.tmpdir="\"$CATALINA_TMPDIR\"" \
  -DUSER_DEFINED="$USER_DEFINED" \
  org.apache.catalina.startup.Bootstrap "$@" start

P.S: This problem could have been local to my computer. Others would have different problems. Adding my answer to this post just in case anyone is still facing issues with Tomcat not seeing the environment vars after trying out all recommended approaches.

If you want to write the output to a file you can use the stdout-argument of subprocess.call.

It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The third and fourth are what you want, to have the output written to a file.

You need to open a file with something like open and pass the object or file descriptor integer to call:

f = open("blah.txt", "w")
subprocess.call(["/home/myuser/run.sh", "/tmp/ad_xml",  "/tmp/video_xml"], stdout=f)

I'm guessing any valid file-like object would work, like a socket (gasp :)), but I've never tried.

As marcog mentions in the comments you might want to redirect stderr as well, you can redirect this to the same location as stdout with stderr=subprocess.STDOUT. Any of the above mentioned values works as well, you can redirect to different places.

In the below investigation as API, I use http://example.com instead of http://myApiUrl/login from your question, because this first one working.

I assume that your page is on http://my-site.local:8088.

The reason why you see different results is that Postman:

• set header Host=example.com (your API)
• NOT set header Origin

This is similar to browsers' way of sending requests when the site and API has the same domain (browsers also set the header item Referer=http://my-site.local:8088, however I don't see it in Postman). When Origin header is not set, usually servers allow such requests by default.

This is the standard way how Postman sends requests. But a browser sends requests differently when your site and API have different domains, and then CORS occurs and the browser automatically:

• sets header Host=example.com (yours as API)
• sets header Origin=http://my-site.local:8088 (your site)

(The header Referer has the same value as Origin). And now in Chrome's Console & Networks tab you will see:

When you have Host != Origin this is CORS, and when the server detects such a request, it usually blocks it by default.

Origin=null is set when you open HTML content from a local directory, and it sends a request. The same situation is when you send a request inside an <iframe>, like in the below snippet (but here the Host header is not set at all) - in general, everywhere the HTML specification says opaque origin, you can translate that to Origin=null. More information about this you can find here.

fetch('http://example.com/api', {method: 'POST'});

Look on chrome-console > network tab

If you do not use a simple CORS request, usually the browser automatically also sends an OPTIONS request before sending the main request - more information is here. The snippet below shows it:

fetch('http://example.com/api', {_x000D_
  method: 'POST',_x000D_
  headers: { 'Content-Type': 'application/json'}_x000D_
});

Look in chrome-console -> network tab to 'api' request._x000D_
This is the OPTIONS request (the server does not allow sending a POST request)

You can change the configuration of your server to allow CORS requests.

Here is an example configuration which turns on CORS on nginx (nginx.conf file) - be very careful with setting always/"$http_origin" for nginx and "*" for Apache - this will unblock CORS from any domain.

location ~ ^/index\.php(/|$) {_x000D_
   ..._x000D_
    add_header 'Access-Control-Allow-Origin' "$http_origin" always;_x000D_
    add_header 'Access-Control-Allow-Credentials' 'true' always;_x000D_
    if ($request_method = OPTIONS) {_x000D_
        add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)_x000D_
        add_header 'Access-Control-Allow-Credentials' 'true';_x000D_
        add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days_x000D_
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';_x000D_
        add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';_x000D_
        add_header 'Content-Length' 0;_x000D_
        add_header 'Content-Type' 'text/plain charset=UTF-8';_x000D_
        return 204;_x000D_
    }_x000D_
}

Here is an example configuration which turns on CORS on Apache (.htaccess file)

# ------------------------------------------------------------------------------_x000D_
# | Cross-domain Ajax requests                                                 |_x000D_
# ------------------------------------------------------------------------------_x000D_
_x000D_
# Enable cross-origin Ajax requests._x000D_
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity_x000D_
# http://enable-cors.org/_x000D_
_x000D_
# <IfModule mod_headers.c>_x000D_
#    Header set Access-Control-Allow-Origin "*"_x000D_
# </IfModule>_x000D_
_x000D_
# Header set Header set Access-Control-Allow-Origin "*"_x000D_
# Header always set Access-Control-Allow-Credentials "true"_x000D_
_x000D_
Access-Control-Allow-Origin "http://your-page.com:80"_x000D_
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"_x000D_
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"

Short code example:

.slider ul {
  overflow: hidden;
  -webkit-transition: max-height 3.3s ease;
}

.slider.hide ul {
  max-height: 0px;
}

.slider.show ul {
  max-height: 1000px;
}

Few years later, I second Bobby Jack's observation that last 24 hrs is not today!!! And I am surprised that the answer was so much upvoted...

To compare if a certain date is less, equal or greater than another, first you need to turn them "down" to beginning of the day. In other words, make sure that you're talking about same 00:00:00 time in both dates. This can be simply and elegantly done as:

strtotime("today") <=> strtotime($var)

if $var has the time part on 00:00:00 like the OP specified.

Replace <=> with whatever you need (or keep it like this in php 7)

Also, obviously, we're talking about same timezone for both. For list of supported TimeZones

TCPView can do what you asked for.

Thast should be easy enough

if( myList.Any( s => s.Contains(stringToCheck))){
  //do your stuff here
}

1 - Create a reference in program.cs ->

using System.Diagnostics;

2 - Put into void Main() as the first line of code ->

 if (Process.GetProcessesByName(Process.GetCurrentProcess().ProcessName).Length >1)
                return;

That's it.

The 2018 ES6 answer is:

return Object.is(x, undefined) ? y : x;

If variable x is undefined, return variable y... otherwise if variable x is defined, return variable x.

If you are still using .NET 2.0, then [IO.Path]::Combine won't have the params string[] overload which you need to join more than two parts, and you'll see the error Cannot find an overload for "Combine" and the argument count: "3".

Slightly less elegant, but a pure PowerShell solution is to manually aggregate path parts:

Join-Path C: (Join-Path  "Program Files" "Microsoft Office")

or

Join-Path  (Join-Path  C: "Program Files") "Microsoft Office"

Personally, I find that using the os module is the easiest method as outlined below. If you are only going up one level, replace ('../..') with ('..').

    import os
    os.chdir('../..')

--Check:
    os.getcwd()

I suppose you could look at this link if I understood your question correctly http://www.javacodegeeks.com/2012/07/ultimate-jpa-queries-and-tips-list-part_09.html

For example they created a query like:

 select id, name, age, a.id as ADDRESS_ID, houseNumber, streetName ' +
 20' from person p join address a on a.id = p.address_id where p.id = 1'

you can try writing the command using 'sudo':

sudo mkdir DirName

These are few things which will help you in understanding everything... using iloc

In iloc, [initial row:ending row, initial column:ending column]

case 1: if you want only last column --- df.iloc[:,-1] & df.iloc[:,-1:] this means that you want only the last column...

case 2: if you want all columns and all rows except the last column --- df.iloc[:,:-1] this means that you want all columns and all rows except the last column...

case 3: if you want only last row --- df.iloc[-1:,:] & df.iloc[-1,:] this means that you want only the last row...

case 4: if you want all columns and all rows except the last row --- df.iloc[:-1,:] this means that you want all columns and all rows except the last column...

case 5: if you want all columns and all rows except the last row and last column --- df.iloc[:-1,:-1] this means that you want all columns and all rows except the last column and last row...

I restarted my phone after uninstalling the app and it worked

With ES6 and a more functional programming approach @adeneo's answer could looks like this:

function getFormData(object) {
    const formData = new FormData();
    Object.keys(object).forEach(key => formData.append(key, object[key]));
    return formData;
}

And alternatively using .reduce() and arrow-functions:

const getFormData = object => Object.keys(object).reduce((formData, key) => {
    formData.append(key, object[key]);
    return formData;
}, new FormData());

The identity used to create the connection defines what tables you can see in Oracle. Did you provide different credentials when setting up the connection for the new version?

Why not check if for nothing?

if not inputbox("bleh") = nothing then
'Code
else
' Error
end if

This is what i typically use, because its a little easier to read.

The App-Secret key should be kept private - but when releasing the app they can be reversed by some guys.

for those guys it will not hide, lock the either the ProGuard the code. It is a refactor and some payed obfuscators are inserting a few bitwise operators to get back the jk433g34hg3 String. You can make 5 -15 min longer the hacking if you work 3 days :)

Best way is to keep it as it is, imho.

Even if you store at server side( your PC ) the key can be hacked and printed out. Maybe this takes the longest? Anyhow it is a matter of few minutes or a few hours in best case.

A normal user will not decompile your code.

You are getting this error: "React Hook "useState" is called in function "App" which is neither a React function component or a custom React Hook function"

Solution: You basically need to Capitalize the function.

For example:

const Helper =()=>{}_x000D_
_x000D_
function Helper2(){}

You can simply use

int numberOfLetters = yourWord.Length;

or to be cool and trendy, use LINQ like this :

int numberOfLetters = yourWord.ToCharArray().Count();

and if you hate both Properties and LINQ, you can go old school with a loop :

int numberOfLetters = 0;
foreach (char letter in yourWord)
{
    numberOfLetters++;
}

My solution was to open Visual Studio Code in a previous directory.

Simple and neat solution involving some good answers and comment.

<img src="foo.jpg" onerror="this.src='error.jpg';this.onerror='';">

It even solve infinite loop risk.

Worked for me.

There's two options:

1. Log Navigator (command-7 or view|navigators|log) and select your debug session.

2. "View | Show Debug Area" to view the NSLog output and interact with the debugger.

Here's a pic with both on. You wouldn't normally have both on, but I can only link one image per post! http://i.stack.imgur.com/4gG4P.png

Example:

2.032 MB (2,131,022 bytes)

$u=($mbox.TotalItemSize.value).tostring()

$u=$u.trimend(" bytes)") #yields 2.032 MB (2,131,022

$u=$u.Split("(") #yields `$u[1]` as 2,131,022

$uI=[int]$u[1]

The result is 2131022 in integer form.

I've been working on a function to work within a library for a client, and have been having a lot of trouble keeping the UI responsive during the sorts (even with only a few hundred results).

The function has to resort the entire table each AJAX pagination, as new data may require injection further up. This is what I had so far:

• jQuery library required.
• table is the ID of the table being sorted.
• The table attributes sort-attribute, sort-direction and the column attribute column are all pre-set.

Using some of the details above I managed to improve performance a bit.

function sorttable(table) {
    var context = $('#' + table), tbody = $('#' + table + ' tbody'), sortfield = $(context).data('sort-attribute'), c, dir = $(context).data('sort-direction'), index = $(context).find('thead th[data-column="' + sortfield + '"]').index();
    if (!sortfield) {
        sortfield = $(context).data('id-attribute');
    };
    switch (dir) {
        case "asc":
            tbody.find('tr').sort(function (a, b) {
                var sortvala = parseFloat($(a).find('td:eq(' + index + ')').text());
                var sortvalb = parseFloat($(b).find('td:eq(' + index + ')').text());
                // if a < b return 1
                return sortvala < sortvalb ? 1
                       // else if a > b return -1
                       : sortvala > sortvalb ? -1
                       // else they are equal - return 0    
                       : 0;
            }).appendTo(tbody);
            break;
        case "desc":
        default:
            tbody.find('tr').sort(function (a, b) {
                var sortvala = parseFloat($(a).find('td:eq(' + index + ')').text());
                var sortvalb = parseFloat($(b).find('td:eq(' + index + ')').text());
                // if a < b return 1
                return sortvala > sortvalb ? 1
                       // else if a > b return -1
                       : sortvala < sortvalb ? -1
                       // else they are equal - return 0    
                       : 0;
            }).appendTo(tbody);
        break;
  }

In principle the code works perfectly, but it's painfully slow... are there any ways to improve performance?

This might help you.

Your HTML

<form id="myform" action="action.php">
<input type="hidden" name="myinput" value="0" />
<input type="text" name="message" value="" />
<input type="submit" name="submit" onclick="save()" />
</form>

Your Script

    <script>
        function save(){
            $('#myinput').val('1');
            $('#form').submit();
        }
    </script>

You need

/^[a-zA-Z]+$/

Currently, you are matching a single character at the start of the input. If your goal is to match letter characters (one or more) from start to finish, then you need to repeat the a-z character match (using +) and specify that you want to match all the way to the end (via $)

paramiko.SFTPClient

Sample Usage:

import paramiko
paramiko.util.log_to_file("paramiko.log")

# Open a transport
host,port = "example.com",22
transport = paramiko.Transport((host,port))

# Auth    
username,password = "bar","foo"
transport.connect(None,username,password)

# Go!    
sftp = paramiko.SFTPClient.from_transport(transport)

# Download
filepath = "/etc/passwd"
localpath = "/home/remotepasswd"
sftp.get(filepath,localpath)

# Upload
filepath = "/home/foo.jpg"
localpath = "/home/pony.jpg"
sftp.put(localpath,filepath)

# Close
if sftp: sftp.close()
if transport: transport.close()

Don't do this, but this is how you would do it:

$(".overdue").each(function() { 
    alert("Your book is overdue"); 
});

The reason I say "don't do it" is because nothing is more annoying to users, in my opinion, than repeated pop-ups that cannot be stopped. Instead, just use the length property and let them know that "You have X books overdue".

I answered a very similar question, and here is a way of doing this :

First, create a file where you would define your animations and export them. Just to make it more clear in your app.component.ts

In the following example, I used a max-height of the div that goes from 0px (when it's hidden), to 500px, but you would change that according to what you need.

This animation uses states (in and out), that will be toggle when we click on the button, which will run the animtion.

animations.ts

import { trigger, state, style, transition,
    animate, group, query, stagger, keyframes
} from '@angular/animations';

export const SlideInOutAnimation = [
    trigger('slideInOut', [
        state('in', style({
            'max-height': '500px', 'opacity': '1', 'visibility': 'visible'
        })),
        state('out', style({
            'max-height': '0px', 'opacity': '0', 'visibility': 'hidden'
        })),
        transition('in => out', [group([
            animate('400ms ease-in-out', style({
                'opacity': '0'
            })),
            animate('600ms ease-in-out', style({
                'max-height': '0px'
            })),
            animate('700ms ease-in-out', style({
                'visibility': 'hidden'
            }))
        ]
        )]),
        transition('out => in', [group([
            animate('1ms ease-in-out', style({
                'visibility': 'visible'
            })),
            animate('600ms ease-in-out', style({
                'max-height': '500px'
            })),
            animate('800ms ease-in-out', style({
                'opacity': '1'
            }))
        ]
        )])
    ]),
]

Then in your app.component, we import the animation and create the method that will toggle the animation state.

app.component.ts

import { SlideInOutAnimation } from './animations';

@Component({
  ...
  animations: [SlideInOutAnimation]
})
export class AppComponent  {
  animationState = 'in';

  ...

  toggleShowDiv(divName: string) {
    if (divName === 'divA') {
      console.log(this.animationState);
      this.animationState = this.animationState === 'out' ? 'in' : 'out';
      console.log(this.animationState);
    }
  }
}

And here is how your app.component.html would look like :

<div class="wrapper">
  <button (click)="toggleShowDiv('divA')">TOGGLE DIV</button>
  <div [@slideInOut]="animationState" style="height: 100px; background-color: red;">
  THIS DIV IS ANIMATED</div>
  <div class="content">THIS IS CONTENT DIV</div>
</div>

slideInOut refers to the animation trigger defined in animations.ts

Here is a StackBlitz example I have created : https://angular-muvaqu.stackblitz.io/

Side note : If an error ever occurs and asks you to add BrowserAnimationsModule, just import it in your app.module.ts:

import { BrowserAnimationsModule } from '@angular/platform-browser/animations';

@NgModule({
  imports: [ ..., BrowserAnimationsModule ],
  ...
})

Just go to the machine where your database resides, search windows -> search SqlPlus Type the user name, then type password, it will prompt you to give new password. On providing new password, it will say successfully changed the password.

The "up" affordance indicator is provided by a drawable specified in the homeAsUpIndicator attribute of the theme. To override it with your own custom version it would be something like this:

<style name="Theme.MyFancyTheme" parent="android:Theme.Holo">
    <item name="android:homeAsUpIndicator">@drawable/my_fancy_up_indicator</item>
</style>

If you are supporting pre-3.0 with your application be sure you put this version of the custom theme in values-v11 or similar.

You can also use the index for the sheet:

xls = pd.ExcelFile('path_to_file.xls')
sheet1 = xls.parse(0)

will give the first worksheet. for the second worksheet:

sheet2 = xls.parse(1)

Here's a solution:

dates <- c("14.01.2013", "26.03.2014")

# Date format:
dates2 <- strptime(dates, format = "%d.%m.%Y")

dif <- diff(as.numeric(dates2)) # difference in seconds

dif/(60 * 60 * 24 * 7) # weeks
[1] 62.28571
dif/(60 * 60 * 24 * 30) # months
[1] 14.53333
dif/(60 * 60 * 24 * 30 * 3) # quartes
[1] 4.844444
dif/(60 * 60 * 24 * 365) # years
[1] 1.194521

Nothing compares to extjs in terms of community size and presence on StackOverflow. Despite previous controversy, Ext JS now has a GPLv3 open source license. Its learning curve is long, but it can be quite rewarding once learned. Ext JS lacks a Material Design theme, and the team has repeatedly refused to release the source code on GitHub. For mobile, one must use the separate Sencha Touch library.

Have in mind also that,

large JavaScript libraries, such as YUI, have been receiving less attention from the community. Many developers today look at large JavaScript libraries as walled gardens they don’t want to be locked into.

-- Announcement of YUI development being ceased

That said, below are a number of Ext JS alternatives currently available.

Leading client widget libraries

1. Blueprint is a React-based UI toolkit developed by big data analytics company Palantir in TypeScript, and "optimized for building complex data-dense interfaces for desktop applications". Actively developed on GitHub as of May 2019, with comprehensive documentation. Components range from simple (chips, toast, icons) to complex (tree, data table, tag input with autocomplete, date range picker. No accordion or resizer.

   Blueprint targets modern browsers (Chrome, Firefox, Safari, IE 11, and Microsoft Edge) and is licensed under a modified Apache license.

   Sandbox / demo • GitHub • Docs

2. Webix - an advanced, easy to learn, mobile-friendly, responsive and rich free&open source JavaScript UI components library. Webix spun off from DHTMLX Touch (a project with 8 years of development behind it - see below) and went on to become a standalone UI components framework. The GPL3 edition allows commercial use and lets non-GPL applications using Webix keep their license, e.g. MIT, via a license exemption for FLOSS. Webix has 55 UI widgets, including trees, grids, treegrids and charts. Funding comes from a commercial edition with some advanced widgets (Pivot, Scheduler, Kanban, org chart etc.). Webix has an extensive list of free and commercial widgets, and integrates with most popular frameworks (React, Vue, Meteor, etc) and UI components.

   

   Skins look modern, and include a Material Design theme. The Touch theme also looks quite Material Design-ish. See also the Skin Builder.

   Minimal GitHub presence, but includes the library code, and the documentation (which still needs major improvements). Webix suffers from a having a small team and a lack of marketing. However, they have been responsive to user feedback, both on GitHub and on their forum.

   The library was lean (128Kb gzip+minified for all 55 widgets as of ~2015), faster than ExtJS, dojo and others, and the design is pleasant-looking. The current version of Webix (v6, as of Nov 2018) got heavier (400 - 676kB minified but NOT gzipped).

   The demos on Webix.com look and function great. The developer, XB Software, uses Webix in solutions they build for paying customers, so there's likely a good, funded future ahead of it.

   Webix aims for backwards compatibility down to IE8, and as a result carries some technical debt.

   Wikipedia • GitHub • Playground/sandbox • Admin dashboard demo • Demos • Widget samples

3. react-md - MIT-licensed Material Design UI components library for React. Responsive, accessible. Implements components from simple (buttons, cards) to complex (sortable tables, autocomplete, tags input, calendars). One lead author, ~1900 GitHub stars.

4. kendo - jQuery-based UI toolkit with 40+ basic open-source widgets, plus commercial professional widgets (grids, trees, charts etc.). Responsive&mobile support. Works with Bootstrap and AngularJS. Modern, with Material Design themes. The documentation is available on GitHub, which has enabled numerous contributions from users (4500+ commits, 500+ PRs as of Jan 2015).

   

   Well-supported commercially, claiming millions of developers, and part of a large family of developer tools. Telerik has received many accolades, is a multi-national company (Bulgaria, US), was acquired by Progress Software, and is a thought leader.

   A Kendo UI Professional developer license costs $700 and posting access to most forums is conditioned upon having a license or being in the trial period.

   [Wikipedia] • GitHub/Telerik • Demos • Playground • Tools

5. OpenUI5 - jQuery-based UI framework with 180 widgets, Apache 2.0-licensed and fully-open sourced and funded by German software giant SAP SE.

   

   The community is much larger than that of Webix, SAP is hiring developers to grow OpenUI5, and they presented OpenUI5 at OSCON 2014.

   The desktop themes are rather lackluster, but the Fiori design for web and mobile looks clean and neat.

   Wikipedia • GitHub • Mobile-first controls demos • Desktop controls demos • SO

6. DHTMLX - JavaScript library for building rich Web and Mobile apps. Looks most like ExtJS - check the demos. Has been developed since 2005 but still looks modern. All components except TreeGrid are available under GPLv2 but advanced features for many components are only available in the commercial PRO edition - see for example the tree. Claims to be used by many Fortune 500 companies.

   

   Minimal presence on GitHub (the main library code is missing) and StackOverflow but active forum. The documentation is not available on GitHub, which makes it difficult to improve by the community.

7. Polymer, a Web Components polyfill, plus Polymer Paper, Google's implementation of the Material design. Aimed at web and mobile apps. Doesn't have advanced widgets like trees or even grids but the controls it provides are mobile-first and responsive. Used by many big players, e.g. IBM or USA Today.

   

8. Ant Design claims it is "a design language for background applications", influenced by "nature" and helping designers "create low-entropy atmosphere for developer team". That's probably a poor translation from Chinese for "UI components for enterprise web applications". It's a React UI library written in TypeScript, with many components, from simple (buttons, cards) to advanced (autocomplete, calendar, tag input, table).

   The project was born in China, is popular with Chinese companies, and parts of the documentation are available only in Chinese. Quite popular on GitHub, yet it makes the mistake of splitting the community into Chinese and English chat rooms. The design looks Material-ish, but fonts are small and the information looks lost in a see of whitespace.

9. PrimeUI - collection of 45+ rich widgets based on jQuery UI. Apache 2.0 license. Small GitHub community. 35 premium themes available.

10. qooxdoo - "a universal JavaScript framework with a coherent set of individual components", developed and funded by German hosting provider 1&1 (see the contributors, one of the world's largest hosting companies. GPL/EPL (a business-friendly license).

    Mobile themes look modern but desktop themes look old (gradients).

    

    Wikipedia • GitHub • Web/Mobile/Desktop demos • Widgets Demo browser • Widget browser • SO • Playground • Community

11. jQuery UI - easy to pick up; looks a bit dated; lacks advanced widgets. Of course, you can combine it with independent widgets for particular needs, e.g. trees or other UI components, but the same can be said for any other framework.

12. angular + Angular UI. While Angular is backed by Google, it's being radically revamped in the upcoming 2.0 version, and "users will need to get to grips with a new kind of architecture. It's also been confirmed that there will be no migration path from Angular 1.X to 2.0". Moreover, the consensus seems to be that Angular 2 won't really be ready for use until a year or two from now. Angular UI has relatively few widgets (no trees, for example).

13. DojoToolkit and their powerful Dijit set of widgets. Completely open-sourced and actively developed on GitHub, but development is now (Nov 2018) focused on the new dojo.io framework, which has very few basic widgets. BSD/AFL license. Development started in 2004 and the Dojo Foundation is being sponsored by IBM, Google, and others - see Wikipedia. 7500 questions here on SO.

    

    Themes look desktop-oriented and dated - see the theme tester in dijit. The official theme previewer is broken and only shows "Claro". A Bootstrap theme exists, which looks a lot like Bootstrap, but doesn't use Bootstrap classes. In Jan 2015, I started a thread on building a Material Design theme for Dojo, which got quite popular within the first hours. However, there are questions regarding building that theme for the current Dojo 1.10 vs. the next Dojo 2.0. The response to that thread shows an active and wide community, covering many time zones.

    Unfortunately, Dojo has fallen out of popularity and fewer companies appear to use it, despite having (had?) a strong foothold in the enterprise world. In 2009-2012, its learning curve was steep and the documentation needed improvements; while the documentation has substantially improved, it's unclear how easy it is to pick up Dojo nowadays.

    With a Material Design theme, Dojo (2.0?) might be the killer UI components framework.

    Wikipedia • GitHub • Themes • Demos • Desktop widgets • SO

14. Enyo - front-end library aimed at mobile and TV apps (e.g. large touch-friendly controls). Developed by LG Electronix and Apache-licensed on GitHub.

15. The radical Cappuccino - Objective-J (a superset of JavaScript) instead of HTML+CSS+DOM

16. Mochaui, MooTools UI Library User Interface Library. <300 GitHub stars.

17. CrossUI - cross-browser JS framework to develop and package the exactly same code and UI into Web Apps, Native Desktop Apps (Windows, OS X, Linux) and Mobile Apps (iOS, Android, Windows Phone, BlackBerry). Open sourced LGPL3. Featured RAD tool (form builder etc.). The UI looks desktop-, not web-oriented. Actively developed, small community. No presence on GitHub.

18. ZinoUI - simple widgets. The DataTable, for instance, doesn't even support sorting.

19. Wijmo - good-looking commercial widgets, with old (jQuery UI) widgets open-sourced on GitHub (their development stopped in 2013). Developed by ComponentOne, a division of GrapeCity. See Wijmo Complete vs. Open.

20. CxJS - commercial JS framework based on React, Babel and webpack offering form elements, form validation, advanced grid control, navigational elements, tooltips, overlays, charts, routing, layout support, themes, culture dependent formatting and more.

Widgets - Demo Apps - Examples - GitHub

Full-stack frameworks

1. SproutCore - developed by Apple for web applications with native performance, handling large data sets on the client. Powers iCloud.com. Not intended for widgets.

2. Wakanda: aimed at business/enterprise web apps - see What is Wakanda?. Architecture:

   • Wakanda Server (server-side JavaScript (custom engine) + open-source NoSQL database)
   • desktop IDE and WYSIWYG editor for tables, forms, reports

   • Wakanda Application Framework (datasource layer + browser-based interface widgets) that helps with browser and device compatibility across desktop and mobile

     Wakanda is highly integrated, includes a ton of features out of the box, but has a very small GitHub community and SO presence.

3. Servoy - "a cross platform frontend development and deployment environment for SQL databases". Boasts a "full WYSIWIG (What You See Is What You Get) UI designer for HTML5 with built-in data-binding to back-end services", responsive design, support for HTML6 Web Components, Websockets and mobile platforms. Written in Java and generates JavaScript code using various JavaBeans.

4. SmartClient/SmartGWT - mobile and cross-browser HTML5 UI components combined with a Java server. Aimed at building powerful business apps - see demos.

5. Vaadin - full-stack Java/GWT + JavaScript/HTML3 web app framework

6. Backbase - portal software

7. Shiny - front-end library on top R, with visualization, layout and control widgets

8. ZKOSS: Java+jQuery+Bootstrap framework for building enterprise web and mobile apps.

CSS libraries + minimal widgets

These libraries don't implement complex widgets such as tables with sorting/filtering, autocompletes, or trees.

1. Bootstrap

2. Foundation for Apps - responsive front-end framework on top of AngularJS; more of a grid/layout/navigation library

3. UI Kit - similar to Bootstrap, with fewer widgets, but with official off-canvas.

Libraries using HTML Canvas

Using the canvas elements allows for complete control over the UI, and great cross-browser compatibility, but comes at the cost of missing native browser functionality, e.g. page search via Ctrl/Cmd+F.

1. Zebra - demos

No longer developed as of Dec 2014

1. Yahoo! User Interface - YUI, launched in 2005, but no longer maintained by the core contributors - see the announcement, which highlights reasons why large UI widget libraries are perceived as walled gardens that developers don't want to be locked into.
2. echo3, GitHub. Supports writing either server-side Java applications that don't require developer knowledge of HTML, HTTP, or JavaScript, or client-side JavaScript-based applications do not require a server, but can communicate with one via AJAX. Last update: July 2013.
3. ampleSDK
4. Simpler widgets livepipe.net
5. JxLib
6. rialto
7. Simple UI kit
8. Prototype-ui

Other lists

• Best of JS - component toolkits
• Wikipedia's Comparison of JavaScript frameworks
• Wikipedia's list of GUI-related JavaScript libraries
• jqueryuiwidgets.com - detailed jQuery widgets feature comparison

If you are using Any CPU you may need to put it in single quotes.

Certainly when running in a Dockerfile, I had to use single quotes:

# Fails. Gives: MSBUILD : error MSB1008: Only one project can be specified.
RUN msbuild ConsoleAppFw451.sln /p:Configuration=Debug /p:Platform="Any CPU" 

# Passes. Gives: Successfully built 40163c3e0121
RUN msbuild ConsoleAppFw451.sln /p:Configuration=Debug /p:Platform='Any CPU' 

Just call moment as a function without any arguments:

moment()

For timezone information with moment, look at the moment-timezone package: http://momentjs.com/timezone/

Chars within single quote ('XXXXXX'), when printed as decimal should output its ASCII value.

int main(){

    printf("D\n");
    printf("The ASCII of D is %d\n",'D');

    return 0;

}

Output:

% ./a.out
>> D
>> The ASCII of D is 68

Specify crossAxisAlignment: CrossAxisAlignment.start in your column

For Javascript:

• Javascript: The Definitive Guide
• Pro Javascript Techniques

For PHP:

• PHP Objects, Patterns, and Practice

For OO design & programming, patterns:

• Object-Oriented Software Construction (a bible, maybe the Head First OO would be nice, I don't know it)
• Head First Design Patterns (I so love this book)
• Design Patterns

For Refactoring:

• Refactoring: Improving the Design of Existing Code
• Working Effectively with Legacy Code

For SQL/MySQL:

• Joe Celko: Tree and Hierarchies in SQL (only on a specific subject, but I found it interesting)
• Pro MySQL

The || operator is "concatenate" - it joins together the two strings of its operands.

From http://www.sqlite.org/lang_expr.html

For padding, the seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.

Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verysimple.com/2010/01/12/sqlite-lpad-rpad-function/

-- the statement below is almost the same as
-- select lpad(mycolumn,'0',10) from mytable

select substr('0000000000' || mycolumn, -10, 10) from mytable

-- the statement below is almost the same as
-- select rpad(mycolumn,'0',10) from mytable

select substr(mycolumn || '0000000000', 1, 10) from mytable

Here's how it looks:

SELECT col1 || '-' || substr('00'||col2, -2, 2) || '-' || substr('0000'||col3, -4, 4)

it yields

"A-01-0001"
"A-01-0002"
"A-12-0002"
"C-13-0002"
"B-11-0002"

This one worked for me :

function validateForm(){

  var z = document.forms["myForm"]["num"].value;

  if(!/^[0-9]+$/.test(z)){
    alert("Please only enter numeric characters only for your Age! (Allowed input:0-9)")
  }

}

There are a lot of answers here, but I failed, to find a version, that performs real method resolution ordering, while not using any of the newer c++ features (only using c++98 features).
Note: This version is tested and working with vc++2013, g++ 5.2.0 and the onlline compiler.

So I came up with a version, that only uses sizeof():

template<typename T> T declval(void);

struct fake_void { };
template<typename T> T &operator,(T &,fake_void);
template<typename T> T const &operator,(T const &,fake_void);
template<typename T> T volatile &operator,(T volatile &,fake_void);
template<typename T> T const volatile &operator,(T const volatile &,fake_void);

struct yes { char v[1]; };
struct no  { char v[2]; };
template<bool> struct yes_no:yes{};
template<> struct yes_no<false>:no{};

template<typename T>
struct has_awesome_member {
 template<typename U> static yes_no<(sizeof((
   declval<U>().awesome_member(),fake_void()
  ))!=0)> check(int);
 template<typename> static no check(...);
 enum{value=sizeof(check<T>(0)) == sizeof(yes)};
};


struct foo { int awesome_member(void); };
struct bar { };
struct foo_void { void awesome_member(void); };
struct wrong_params { void awesome_member(int); };

static_assert(has_awesome_member<foo>::value,"");
static_assert(!has_awesome_member<bar>::value,"");
static_assert(has_awesome_member<foo_void>::value,"");
static_assert(!has_awesome_member<wrong_params>::value,"");

Live demo (with extended return type checking and vc++2010 workaround): http://cpp.sh/5b2vs

No source, as I came up with it myself.

When running the Live demo on the g++ compiler, please note that array sizes of 0 are allowed, meaning that the static_assert used will not trigger a compiler error, even when it fails.
A commonly used work-around is to replace the 'typedef' in the macro with 'extern'.

Create a .htaccess file in directory and add this code to .htaccess file

AddHandler x-httpd-php .html .htm

or

AddType application/x-httpd-php .html .htm

It will force Apache server to parse HTML or HTM files as PHP Script

Java doesn't have an analog to C++'s structs, but you can use classes with all public members.

Use DateTime::createFromFormat

$date = date_create_from_format('d/m/Y:H:i:s', $s);
$date->getTimestamp();

If you are using jQuery you can easily fetch the data attributes by

$(this).data("id") or $(event.target).data("id")

1. Create SDK folder at \Android\Sdk
2. Close any project which is already open in Android studio

Android Studio setup wizard will appear and perform the needed installation.

It does not allow it, use interface to achieve it.

Why it is so?

Here is the answer: It's allowed the compiler to make a very reasoned and rational decision that was always going to consistent about what was inherited and where it was inherited from so that when you did casting and you always know exactly which implementation you were dealing with.

Make a module, service and component in particular module

Basic:

    ng g module chat     
    ng g service chat/chat -m chat
    ng g component chat/chat-dialog -m chat

    In chat.module.ts:
        exports: [ChatDialogComponent],
        providers: [ChatService]

    In app.module.ts:

        imports: [
            BrowserModule,
            ChatModule
        ]

    Now in app.component.html:
        <chat-dialog></chat-dialog>


LAZY LOADING:
    ng g module pages --module app.module --route pages

        CREATE src/app/pages/pages-routing.module.ts (340 bytes)
        CREATE src/app/pages/pages.module.ts (342 bytes)
        CREATE src/app/pages/pages.component.css (0 bytes)
        CREATE src/app/pages/pages.component.html (20 bytes)
        CREATE src/app/pages/pages.component.spec.ts (621 bytes)
        CREATE src/app/pages/pages.component.ts (271 bytes)
        UPDATE src/app/app-routing.module.ts (8611 bytes)       

    ng g module pages/forms --module pages/pages.module --route forms

        CREATE src/app/forms/forms-routing.module.ts (340 bytes)
        CREATE src/app/forms/forms.module.ts (342 bytes)
        CREATE src/app/forms/forms.component.css (0 bytes)
        CREATE src/app/forms/forms.component.html (20 bytes)
        CREATE src/app/forms/forms.component.spec.ts (621 bytes)
        CREATE src/app/forms/forms.component.ts (271 bytes)
        UPDATE src/app/pages/pages-routing.module.ts (437 bytes)

it works for me. if you want to enable future time for choose, you have to delete maximum date. You need to to do like followings.

 btnDate.setOnClickListener(new View.OnClickListener() {
                       @Override
                       public void onClick(View v) {
                              DialogFragment newFragment = new DatePickerFragment();
                                    newFragment.show(getSupportFragmentManager(), "datePicker");
                            }
                        });

            public static class DatePickerFragment extends DialogFragment
                        implements DatePickerDialog.OnDateSetListener {

                    @Override
                    public Dialog onCreateDialog(Bundle savedInstanceState) {
                        final Calendar c = Calendar.getInstance();
                        int year = c.get(Calendar.YEAR);
                        int month = c.get(Calendar.MONTH);
                        int day = c.get(Calendar.DAY_OF_MONTH);
                        DatePickerDialog dialog = new DatePickerDialog(getActivity(), this, year, month, day);
                        dialog.getDatePicker().setMaxDate(c.getTimeInMillis());
                        return  dialog;
                    }

                    public void onDateSet(DatePicker view, int year, int month, int day) {
                       btnDate.setText(ConverterDate.ConvertDate(year, month + 1, day));
                    }
                }

This should get you started:

R> qplot(hwy, cty, data = mpg) + 
       facet_grid(. ~ manufacturer) + 
       theme(strip.text.x = element_text(size = 8, colour = "orange", angle = 90))

See also this question: How can I manipulate the strip text of facet plots in ggplot2?

Before you proceed to conda update --all command, first update conda with conda update conda command if you haven't update it for a long time. It happent to me (Python 2.7.13 on Anaconda 64 bits).

This is how I fixed my issue, I am getting data in data variable and by using above solutions I was getting error could not load results. I had to parse the results differently in processResults.

searchBar.select2({
            ajax: {
                url: "/search/live/results/",
                dataType: 'json',
                headers : {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},
                delay: 250,
                type: 'GET',
                data: function (params) {
                    return {
                        q: params.term, // search term
                    };
                },
                processResults: function (data) {
                    var arr = []
                    $.each(data, function (index, value) {
                        arr.push({
                            id: index,
                            text: value
                        })
                    })
                    return {
                        results: arr
                    };
                },
                cache: true
            },
            escapeMarkup: function (markup) { return markup; },
            minimumInputLength: 1
        });

The easiest way to get the correct number of hours between two dates (datetimes), even across daylight saving time changes, is to use the difference in Unix timestamps. Unix timestamps are seconds elapsed since 1970-01-01T00:00:00 UTC, ignoring leap seconds (this is OK because you probably don't need this precision, and because it's quite difficult to take leap seconds into account).

The most flexible way to convert a datetime string with optional timezone information into a Unix timestamp is to construct a DateTime object (optionally with a DateTimeZone as a second argument in the constructor), and then call its getTimestamp method.

$str1 = '2006-04-12 12:30:00'; 
$str2 = '2006-04-14 11:30:00';
$tz1 = new DateTimeZone('Pacific/Apia');
$tz2 = $tz1;
$d1 = new DateTime($str1, $tz1); // tz is optional,
$d2 = new DateTime($str2, $tz2); // and ignored if str contains tz offset
$delta_h = ($d2->getTimestamp() - $d1->getTimestamp()) / 3600;
if ($rounded_result) {
   $delta_h = round ($delta_h);
} else if ($truncated_result) {
   $delta_h = intval($delta_h);
}
echo "?h: $delta_h\n";

List<string> includedWords = new List<string>() { "a", "b", "c" };
bool string_contains_words = includedWords.Exists(o => s.Contains(o));

just a matter of taste but if you prefer accessing the variable or function directly like this:

<div id="playlist-icon" back-img="playlist.icon">

instead of interpolating like this:

<div id="playlist-icon" back-img="{{playlist.icon}}">

then you can define the directive a bit differently with scope.$watch which will do $parse on the attribute

angular.module('myApp', [])
.directive('bgImage', function(){

    return function(scope, element, attrs) {
        scope.$watch(attrs.bgImage, function(value) {
            element.css({
                'background-image': 'url(' + value +')',
                'background-size' : 'cover'
            });
        });
    };
})

there is more background on this here: AngularJS : Difference between the $observe and $watch methods

<form name="myForm">_x000D_
        <input name="myText" type="text" ng-model="mytext" required/>_x000D_
        <button ng-disabled="myForm.$pristine|| myForm.$invalid">Save</button>_x000D_
</form>

If you want to be a bit more strict

You can use isin method:

In [1]: df = pd.DataFrame({'A': [5,6,3,4], 'B': [1,2,3,5]})

In [2]: df
Out[2]:
   A  B
0  5  1
1  6  2
2  3  3
3  4  5

In [3]: df[df['A'].isin([3, 6])]
Out[3]:
   A  B
1  6  2
2  3  3

And to get the opposite use ~:

In [4]: df[~df['A'].isin([3, 6])]
Out[4]:
   A  B
0  5  1
3  4  5

I do this quite often on results returned from a query..

e.g.

// $MyQueryResult is an array of results from a query

foreach ($MyQueryResult as $key=>$value)
{
   ${$key}=$value;
}

Now I can just use $MyFieldname (which is easier in echo statements etc) rather than $MyQueryResult['MyFieldname']

Yep, it's probably lazy, but I've never had any problems.

Apache ant chmod (not very elegant, adding it for completeness) credit shared with @msorsky

    Chmod chmod = new Chmod();
    chmod.setProject(new Project());
    FileSet mySet = new FileSet();
    mySet.setDir(new File("/my/path"));
    mySet.setIncludes("**");
    chmod.addFileset(mySet);
    chmod.setPerm("+w");
    chmod.setType(new FileDirBoth());
    chmod.execute();

You can use the --build-arg option when you want to build using a Dockerfile.

From a link on https://github.com/docker/docker/issues/14634 , see the section "Build with --build-arg with multiple HTTP_PROXY":

[root@pppdc9prda2y java]# docker build 
  --build-arg https_proxy=$HTTP_PROXY --build-arg http_proxy=$HTTP_PROXY 
  --build-arg HTTP_PROXY=$HTTP_PROXY --build-arg HTTPS_PROXY=$HTTP_PROXY 
  --build-arg NO_PROXY=$NO_PROXY  --build-arg no_proxy=$NO_PROXY -t java .

NOTE: On your own system, make sure you have set the HTTP_PROXY and NO_PROXY environment variables.

The warning is issued since you are using backslashes in your strings. If you want to avoid the message, type this command "set standard_conforming_strings=on;". Then use "E" before your string including backslashes that you want postgresql to intrepret.

First we find factor of that number

def fac(n):
  res = []
  for i in range(1,n+1):
    if n%i == 0:
res.append(i)

Script to check prime or not

def prime(n):
return(fac(n) == [1,n])

Script to print all prime number upto n

def prime_list(n):
  pri_list = []
  for i in range(1,n+1):
    if prime(i)
      pri_list.append(i)
return(pri_list)

You can also use shift for individual variables in most cases:

$var1 = shift;

This is a topic in which you should research further as Perl has a number of interesting ways of accessing outside information inside your sub routine.

$(form).serializeArray().reduce(function (obj, item) {
      if (obj[item.name]) {
           if ($.isArray(obj[item.name])) {
               obj[item.name].push(item.value);
           } else {
                var previousValue = obj[item.name];
                obj[item.name] = [previousValue, item.value];
           }
      } else {
           obj[item.name] = item.value;
      }

     return obj;
}, {});

It will fix issue:couldn't work with multiselects.

I would recommend checking out Gabor Grothendieck's sqldf package, which allows you to express these operations in SQL.

library(sqldf)

## inner join
df3 <- sqldf("SELECT CustomerId, Product, State 
              FROM df1
              JOIN df2 USING(CustomerID)")

## left join (substitute 'right' for right join)
df4 <- sqldf("SELECT CustomerId, Product, State 
              FROM df1
              LEFT JOIN df2 USING(CustomerID)")

I find the SQL syntax to be simpler and more natural than its R equivalent (but this may just reflect my RDBMS bias).

See Gabor's sqldf GitHub for more information on joins.

I figured out the answer to above problem. Below query will return rows which have even a signle occurrence of characters besides alphabets, numbers, square brackets, curly brackets,s pace and dot. Please note that position of closing bracket ']' in matching pattern is important.

Right ']' has the special meaning of ending a character set definition. It wouldn't make any sense to end the set before you specified any members, so the way to indicate a literal right ']' inside square brackets is to put it immediately after the left '[' that starts the set definition

SELECT * FROM test WHERE REGEXP_LIKE(sampletext,  '[^]^A-Z^a-z^0-9^[^.^{^}^ ]' );

For creating a console-based UI, you can use gui.cs. It is open-source (from Miguel de Icaza, creator of Xamarin), and runs on .NET Core on Windows, Linux, and macOS.

It has the following components:

• Buttons
• Labels
• Text entry
• Text view
• Time editing field
• Radio buttons
• Checkboxes
• Dialog boxes
  • Message boxes
• Windows
• Menus
• ListViews
• Frames
• ProgressBars
• Scroll views and Scrollbars
• Hexadecimal viewer/editor (HexView)

Sample screenshot

Assuming this is what the HTML looks like

<div class="form-group required">
   <label class="col-md-2 control-label">E-mail</label>
   <div class="col-md-4"><input class="form-control" id="id_email" name="email" placeholder="E-mail" required="required" title="" type="email" /></div>
</div>

To display an asterisk on the right of the label:

.form-group.required .control-label:after { 
    color: #d00;
    content: "*";
    position: absolute;
    margin-left: 8px;
    top:7px;
}

Or to the left of the label:

.form-group.required .control-label:before{
   color: red;
   content: "*";
   position: absolute;
   margin-left: -15px;
}

To make a nice big red asterisks you can add these lines:

font-family: 'Glyphicons Halflings';
font-weight: normal;
font-size: 14px;

Or if you are using Font Awesome add these lines (and change the content line):

font-family: 'FontAwesome';
font-weight: normal;
font-size: 14px;
content: "\f069";

there you go

$date = "04-15-2013";
$date1 = str_replace('-', '/', $date);
$tomorrow = date('m-d-Y',strtotime($date1 . "+1 days"));

echo $tomorrow;

this will output

04-16-2013

Documentation for both function
date
strtotime

Maybe you are looking for this plyr::revalue function:

mutate(dat, x = revalue(x, c("A" = "B")))

You can see plyr::mapvalues too.

I'm not sure what server side technology you are using but try using a json array. A couple of options for you to try:

{
  "address": "colombo",
  "username": "hesh",
  "password": "123",
  "registetedDate": "2015-4-3",
  "firstname": "hesh",
  "contactNo": "07762",
  "accountNo": "16161",
  "lastName": "jay"
 },
[
   1436517454492,
   1436517476993
]

If that doesn't work you may also try:

{
  freelancer: {
  "address": "colombo",
  "username": "hesh",
  "password": "123",
  "registetedDate": "2015-4-3",
  "firstname": "hesh",
  "contactNo": "07762",
  "accountNo": "16161",
  "lastName": "jay"
 },
 skills : [
       1436517454492,
       1436517476993
    ]
}

As seen in Install crontab on CentOS, the crontab package in CentOS is vixie-cron. Hence, do install it with:

yum install vixie-cron

And then start it with:

service crond start

To make it persistent, so that it starts on boot, use:

chkconfig crond on

On CentOS 7 you need to use cronie:

yum install cronie

On CentOS 6 you can install vixie-cron, but the real package is cronie:

yum install vixie-cron

and

yum install cronie

In both cases you get the same output:

.../...
==================================================================
 Package         Arch       Version         Repository      Size
==================================================================
Installing:
 cronie          x86_64     1.4.4-12.el6    base             73 k
Installing for dependencies:
 cronie-anacron  x86_64     1.4.4-12.el6    base             30 k
 crontabs        noarch     1.10-33.el6     base             10 k
 exim            x86_64     4.72-6.el6      epel            1.2 M

Transaction Summary
==================================================================
Install       4 Package(s)

I use this property for hibernate in config xml

<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/bookshop?serverTimezone=UTC&amp;useSSL=false
</property>

without - serverTimezone=UTC - it doesn't work

on my mac i found this file .gitignore_global ..it was in my home directory hidden so do a ls -altr to see it.

I added eclipse files i wanted git to ignore. the contents looks like this:

 *~
.DS_Store
.project
.settings
.classpath
.metadata

You need to have your function in the componentDidMount lifecycle since this is the function that is called when the DOM has loaded.

Make use of refs to access the DOM element

<input type="submit" className="nameInput" id="name" value="cp-dev1" onClick={this.writeData} ref = "cpDev1"/>

  componentDidMount: function(){
    var name = React.findDOMNode(this.refs.cpDev1).value;
    this.someOtherFunction(name);
  }

See this answer for more info on How to access the dom element in React

One way to get the list of distinct column names from the database is to use distinct() in conjunction with values().

In your case you can do the following to get the names of distinct categories:

q = ProductOrder.objects.values('Category').distinct()
print q.query # See for yourself.

# The query would look something like
# SELECT DISTINCT "app_productorder"."category" FROM "app_productorder"

There are a couple of things to remember here. First, this will return a ValuesQuerySet which behaves differently from a QuerySet. When you access say, the first element of q (above) you'll get a dictionary, NOT an instance of ProductOrder.

Second, it would be a good idea to read the warning note in the docs about using distinct(). The above example will work but all combinations of distinct() and values() may not.

PS: it is a good idea to use lower case names for fields in a model. In your case this would mean rewriting your model as shown below:

class ProductOrder(models.Model):
    product  = models.CharField(max_length=20, primary_key=True)
    category = models.CharField(max_length=30)
    rank = models.IntegerField()

Although I've just begun looking at this area of development, I think it comes down to this basic difference: some tools retain the original code, and some port to native...

for instance, PhoneGap just keeps the HTML/CSS/JS code that you write, and wraps it in sufficient iOS code to qualify as an app, whereas Appcelerator delivers you an XCode project...so if you're not familiar with iOS, then that wouldn't really provide any benefit to you over PhoneGap, but if you DO know a bit, that might give you just a bit more ability to tweak the native versions after your larger coding effort.

I haven't used appcelerator myself, but worked on a project a couple weeks ago where one of our team members made an entire iPad app in about 24 hours using it.

And yes, to actually submit to apple, you'll have to get a mac, but if that's not your primary work platform you can go cheap.

I had a problem with the same symtoms. In my case, it turned out that my submit function was missing the "return" statement.

For example:

 $("#id_form").on("submit", function(){
   //Code: Action (like ajax...)
   return false;
 })

Try this.

public static void main(String[] args) {
    EchoServer0 myServer;
    myServer = new EchoServer0();
    myServer.listen();
}

What you were trying to do was declaring a variable of type Object, not creating anything for that variable to reference, then trying to call a method that didn't exist (in the class Object) on an object that hadn't been created. It was never going to work.

In case Translate works locally but not remotly e.i group.Translate(typeof(NTAccount)

If you want to have the application code executes using the LOGGED IN USER identity, then enable impersonation. Impersonation can be enabled thru IIS or by adding the following element in the web.config.

<system.web>
<identity impersonate="true"/>

If impersonation is enabled, the application executes using the permissions found in your user account. So if the logged in user has access, to a specific network resource, only then will he be able to access that resource thru the application.

Thank PRAGIM tech for this information from his diligent video

Windows authentication in asp.net Part 87:

https://www.youtube.com/watch?v=zftmaZ3ySMc

But impersonation creates a lot of overhead on the server

The best solution to allow users of certain network groups is to deny anonymous in the web config <authorization><deny users="?"/><authentication mode="Windows"/>

and in your code behind, preferably in the global.asax, use the HttpContext.Current.User.IsInRole :

Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
If HttpContext.Current.User.IsInRole("TheDomain\TheGroup") Then
//code to do when user is in group
End If

NOTE: The Group must be written with a backslash \ i.e. "TheDomain\TheGroup"

since iOS7:

first: the content size width must be equal to the width of your scrollview

second: in your initWithNibName:

self.automaticallyAdjustsScrollViewInsets = NO;

That´s it.

Solution using just POST - no $_SESSION

page1.php

<form action="page2.php" method="post">
    <textarea name="textarea1" id="textarea1"></textarea><br />
    <input type="submit" value="submit" />
</form>

page2.php

<?php
    // this page outputs the contents of the textarea if posted
    $textarea1 = ""; // set var to avoid errors
    if(isset($_POST['textarea1'])){
        $textarea1 = $_POST['textarea1']
    }
?>
<textarea><?php echo $textarea1;?></textarea>

Solution using $_SESSION and POST

page1.php

<?php

    session_start(); // needs to be before anything else on page to use $_SESSION
    $textarea1 = "";
    if(isset($_POST['textarea1'])){
        $_SESSION['textarea1'] = $_POST['textarea1'];
    }

?>


<form action="page1.php" method="post">
    <textarea name="textarea1" id="textarea1"></textarea><br />
    <input type="submit" value="submit" />
</form>
<br /><br />
<a href="page2.php">Go to page2</a>

page2.php

<?php
    session_start(); // needs to be before anything else on page to use $_SESSION
    // this page outputs the textarea1 from the session IF it exists
    $textarea1 = ""; // set var to avoid errors
    if(isset($_SESSION['textarea1'])){
        $textarea1 = $_SESSION['textarea1']
    }
?>
<textarea><?php echo $textarea1;?></textarea>

WARNING!!! - This contains no validation!!!

That works better with this :

var fso = new ActiveXObject("Scripting.FileSystemObject");
var a = fso.CreateTextFile("c:\\testfile.txt", true);
a.WriteLine("This is a test.");
a.Close();

http://msdn.microsoft.com/en-us/library/5t9b5c0c(v=vs.84).aspx

You Can Try async await

const connectDB = async () => {_x000D_
    try {_x000D_
        await mongoose.connect(<database url>, {_x000D_
            useNewUrlParser: true,_x000D_
            useCreateIndex: true,_x000D_
            useUnifiedTopology: true,_x000D_
            useFindAndModify: false_x000D_
        });_x000D_
        console.log("MongoDB Conected")_x000D_
    } catch (err) {_x000D_
        console.error(err.message);_x000D_
        process.exit(1);_x000D_
    }_x000D_
};

Changed to:

SELECT FORMAT(SA.[RequestStartDate],'dd/MM/yyyy') as 'Service Start Date', SA.[RequestEndDate] as 'Service End Date', FROM (......)SA WHERE......

Have no idea which SQL engine you are using, for other SQL engine, CONVERT can be used in SELECT statement to change the format in the form you needed.

And for SBT : excludeDependencies += "log4j" % "log4j"

Here is simpliest way to clear items from this list.

1. Open the Microsoft SQL Server Management Studio (SSMS) version you want to affect.
2. Open the Connect to Server dialog (File->Connect Object Explorer, Object Explorer-> Connect-> Database Engine, etc).
3. Click on the Server Name field drop down list’s down arrow.
4. Hover over the items you want to remove.
5. Press the delete (DEL) key on your keyboard.

there we go.

The difference is that GET sends data open and POST hidden (in the http-header).

So get is better for non-secure data, like query strings in Google. Auth-data shall never be send via GET - so use POST here. Of course the whole theme is a little more complicated. If you want to read more, read this article (in German).

If you have https server, change your url to use https:// protocol.

I got into similar issue with this one. My url has http:// protocol and I want to make a POST request, but the server wants to redirect it to https. What happen is that, turns out to be node http behavior sends the redirect request (next) in GET method which is not the case.

What I did is to change my url to https:// protocol and it works.

var arr = Array.prototype.slice.call( htmlCollection )

will have the same effect using "native" code.

Edit

Since this gets a lot of views, note (per @oriol's comment) that the following more concise expression is effectively equivalent:

var arr = [].slice.call(htmlCollection);

But note per @JussiR's comment, that unlike the "verbose" form, it does create an empty, unused, and indeed unusable array instance in the process. What compilers do about this is outside the programmer's ken.

Edit

Since ECMAScript 2015 (ES 6) there is also Array.from:

var arr = Array.from(htmlCollection);

Edit

ECMAScript 2015 also provides the spread operator, which is functionally equivalent to Array.from (although note that Array.from supports a mapping function as the second argument).

var arr = [...htmlCollection];

I've confirmed that both of the above work on NodeList.

A performance comparison for the mentioned methods: http://jsben.ch/h2IFA

The difference is that in C++ your object is on the stack, whereas in Java, your object is in the heap. If A and B are Objects, any time in Java you do:

B = A

A and B point to the same object, so anything you do to A you do to B and vice versa.

Use new HashMap() if you want two different objects.

And you can use Map.putAll(...) to copy data between two Maps.

Try this:

Uri uri = Uri.parse("https://www.google.com");
startActivity(new Intent(Intent.ACTION_VIEW, uri));

or if you want then web browser open in your activity then do like this:

WebView webView = (WebView) findViewById(R.id.webView1);
WebSettings settings = webview.getSettings();
settings.setJavaScriptEnabled(true);
webView.loadUrl(URL);

and if you want to use zoom control in your browser then you can use:

settings.setSupportZoom(true);
settings.setBuiltInZoomControls(true);

Calculate Leave working days in a table column as a default value--updated

If you are using SQL here is the query which can help you: http://gallery.technet.microsoft.com/Calculate...

Here are the changes I had to make to deliver PDFs for the django-publications app, using Django 1.10.6:

Used the same definitions for media directories as you, in settings.py:

MEDIA_ROOT = '/home/user/mysite/media/'

MEDIA_URL = '/media/'

As provided by @thisisashwanipandey, in the project's main urls.py:

from django.conf import settings
from django.conf.urls.static import static

urlpatterns = [
    # ... the rest of your URLconf goes here ...
] + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

and a modification of the answer provided by @r-allela, in settings.py:

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                # ... the rest of your context_processors goes here ...
                'django.template.context_processors.media',
            ],
         },
    },
]

As a latest update to android in 2015, Google has included percent support library

com.android.support:percent:23.1.0

You can refer to this site for example of using it

https://github.com/JulienGenoud/android-percent-support-lib-sample

Gradle:

dependencies {
    compile 'com.android.support:percent:22.2.0'
}

In the layout:

<android.support.percent.PercentRelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <View
        android:id="@+id/top_left"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_alignParentTop="true"
        android:background="#ff44aacc"
        app:layout_heightPercent="20%"
        app:layout_widthPercent="70%" />

    <View
        android:id="@+id/top_right"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_alignParentTop="true"
        android:layout_toRightOf="@+id/top_left"
        android:background="#ffe40000"
        app:layout_heightPercent="20%"
        app:layout_widthPercent="30%" />


    <View
        android:id="@+id/bottom"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_below="@+id/top_left"
        android:background="#ff00ff22"
        app:layout_heightPercent="80%" />
</android.support.percent.PercentRelativeLayout>

Why should you learn Python Programming Language?

Python offers a stepping stone into the world of programming. Even though Python Programming Language has been around for 25 years, it is still rising in popularity. Some of the biggest advantage of Python are it's

• Easy to Read & Easy to Learn
• Very productive or small as well as big projects
• Big libraries for many things

What is Python Programming Language used for?

As a general purpose programming language, Python can be used for multiple things. Python can be easily used for small, large, online and offline projects. The best options for utilizing Python are web development, simple scripting and data analysis. Below are a few examples of what Python will let you do:

Web Development:

You can use Python to create web applications on many levels of complexity. There are many excellent Python web frameworks including, Pyramid, Django and Flask, to name a few.

Data Analysis:

Python is the leading language of choice for many data scientists. Python has grown in popularity, within this field, due to its excellent libraries including; NumPy and Pandas and its superb libraries for data visualisation like Matplotlib and Seaborn.

Machine Learning:

What if you could predict customer satisfaction or analyse what factors will affect household pricing or to predict stocks over the next few days, based on previous years data? There are many wonderful libraries implementing machine learning algorithms such as Scikit-Learn, NLTK and TensorFlow.

Computer Vision:

You can do many interesting things such as Face detection, Color detection while using Opencv and Python.

Internet Of Things With Raspberry Pi:

Raspberry Pi is a very tiny and affordable computer which was developed for education and has gained enormous popularity among hobbyists with do-it-yourself hardware and automation. You can even build a robot and automate your entire home. Raspberry Pi can be used as the brain for your robot in order to perform various actions and/or react to the environment. The coding on a Raspberry Pi can be performed using Python. The Possibilities are endless!

Game Development:

Create a video game using module Pygame. Basically, you use Python to write the logic of the game. PyGame applications can run on Android devices.

Web Scraping:

If you need to grab data from a website but the site does not have an API to expose data, use Python to scraping data.

Writing Scripts:

If you're doing something manually and want to automate repetitive stuff, such as emails, it's not difficult to automate once you know the basics of this language.

Browser Automation:

Perform some neat things such as opening a browser and posting a Facebook status, you can do it with Selenium with Python.

GUI Development:

Build a GUI application (desktop app) using Python modules Tkinter, PyQt to support it.

Rapid Prototyping:

Python has libraries for just about everything. Use it to quickly built a (lower-performance, often less powerful) prototype. Python is also great for validating ideas or products for established companies and start-ups alike.

Python can be used in so many different projects. If you're a programmer looking for a new language, you want one that is growing in popularity. As a newcomer to programming, Python is the perfect choice for learning quickly and easily.

Using the Func as mentioned above works but there are also delegates that do the same task and also define intent within the naming:

public delegate double MyFunction(double x);

public double Diff(double x, MyFunction f)
{
    double h = 0.0000001;

    return (f(x + h) - f(x)) / h;
}

public double MyFunctionMethod(double x)
{
    // Can add more complicated logic here
    return x + 10;
}

public void Client()
{
    double result = Diff(1.234, x => x * 456.1234);
    double secondResult = Diff(2.345, MyFunctionMethod);
}

MediaQuery.of(context).size.width and MediaQuery.of(context).size.height works great, but every time need to write expressions like width/20 to set specific height width.

I've created a new application on flutter, and I've had problems with the screen sizes when switching between different devices.

Yes, flutter_screenutil plugin available for adapting screen and font size. Let your UI display a reasonable layout on different screen sizes!

Usage:

Add dependency:

Please check the latest version before installation.

dependencies:
  flutter:
    sdk: flutter
  # add flutter_ScreenUtil
  flutter_screenutil: ^0.4.2

Add the following imports to your Dart code:

import 'package:flutter_screenutil/flutter_screenutil.dart';

Initialize and set the fit size and font size to scale according to the system's "font size" accessibility option

//fill in the screen size of the device in the design

//default value : width : 1080px , height:1920px , allowFontScaling:false
ScreenUtil.instance = ScreenUtil()..init(context);

//If the design is based on the size of the iPhone6 ??(iPhone6 ??750*1334)
ScreenUtil.instance = ScreenUtil(width: 750, height: 1334)..init(context);

//If you wang to set the font size is scaled according to the system's "font size" assist option
ScreenUtil.instance = ScreenUtil(width: 750, height: 1334, allowFontScaling: true)..init(context);

Use:

//for example:
//rectangle
Container(
           width: ScreenUtil().setWidth(375),
           height: ScreenUtil().setHeight(200),
           ...
            ),

////If you want to display a square:
Container(
           width: ScreenUtil().setWidth(300),
           height: ScreenUtil().setWidth(300),
            ),

Please refer updated documentation for more details

Note: I tested and using this plugin, which really works great with all devices including iPad

Hope this will helps someone

Try this one :

 <script type="text/javascript">
      var baseUrl='http://example.com';
      function ConfirmDelete()
      {
            if (confirm("Delete Account?"))
                 location.href=baseUrl+'/deleteRecord.php';
      }
  </script>


  echo '<a type="button" onclick="ConfirmDelete()">DELETE ACCOUNT</a>';

In python, I have found the following to work:

[^\W\d_]

This works because we are creating a new character class (the []) which excludes (^) any character from the class \W (everything NOT in [a-zA-Z0-9_]), also excludes any digit (\d) and also excludes the underscore (_).

That is, we have taken the character class [a-zA-Z0-9_] and removed the 0-9 and _ bits. You might ask, wouldn't it just be easier to write [a-zA-Z] then, instead of [^\W\d_]? You would be correct if dealing only with ASCII text, but when dealing with unicode text:

\W

Matches any character which is not a word character. This is the opposite of \w. > If the ASCII flag is used this becomes the equivalent of [^a-zA-Z0-9_].

^ from the python re module documentation

That is, we are taking everything considered to be a word character in unicode, removing everything considered to be a digit character in unicode, and also removing the underscore.

For example, the following code snippet

import re
regex = "[^\W\d_]"
test_string = "A;,./>>?()*)&^*&^%&^#Bsfa1 203974"
re.findall(regex, test_string)

Returns

['A', 'B', 's', 'f', 'a']

It's worth noting that if you have a button in Controller A and the element you want to show in Controller B, you may need to use dot notation to access the scope variable across controllers.

For example, this will not work:

<div ng-controller="ControllerA">
  <a ng-click="isReplyFormOpen = !isReplyFormOpen">Reply</a>

  <div ng-controller="ControllerB">
    <div ng-show="isReplyFormOpen" id="replyForm">
    </div>
  </div>

</div>

To solve this, create a global variable (ie. in Controller A or your main Controller):

.controller('ControllerA', function ($scope) {
  $scope.global = {};
}

Then add a 'global' prefix to your click and show variables:

<div ng-controller="ControllerA">
  <a ng-click="global.isReplyFormOpen = !global.isReplyFormOpen">Reply</a>

  <div ng-controller="ControllerB">
    <div ng-show="global.isReplyFormOpen" id="replyForm">
    </div>
  </div>

</div>

For more detail, check out the Nested States & Nested Views in the Angular-UI documentation, watch a video, or read understanding scopes.

See PEP 308 for more info.

You could use the global application state.

Update:

Customize and then add this to your AndroidManifest.xml :

<application android:label="@string/app_name" android:debuggable="true" android:name=".CustomApplication"

And then have a class in your project like this :

package com.example;

import android.app.Application;

public class CustomApplication extends Application {
    public int someVariable = -1;
}

And because "It can be accessed via getApplication() from any Activity or Service", you use it like this:

CustomApplication application = (CustomApplication)getApplication();
application.someVariable = 123; 

Hope that helps.

If the variable ax.xaxis._autolabelpos = True, matplotlib sets the label position in function _update_label_position in axis.py according to (some excerpts):

    bboxes, bboxes2 = self._get_tick_bboxes(ticks_to_draw, renderer)
    bbox = mtransforms.Bbox.union(bboxes)
    bottom = bbox.y0
    x, y = self.label.get_position()
    self.label.set_position((x, bottom - self.labelpad * self.figure.dpi / 72.0))

You can set the label position independently of the ticks by using:

    ax.xaxis.set_label_coords(x0, y0)

that sets _autolabelpos to False or as mentioned above by changing the labelpad parameter.

checkout these easy to use Kotlin extensions for date format

fun String.getStringDate(initialFormat: String, requiredFormat: String, locale: Locale = Locale.getDefault()): String {
    return this.toDate(initialFormat, locale).toString(requiredFormat, locale)
}

fun String.toDate(format: String, locale: Locale = Locale.getDefault()): Date = SimpleDateFormat(format, locale).parse(this)

fun Date.toString(format: String, locale: Locale = Locale.getDefault()): String {
    val formatter = SimpleDateFormat(format, locale)
    return formatter.format(this)
}

I've got the same exception and in my case the problem was in a renegotiation procecess. In fact my client closed a connection when the server tried to change a cipher suite. After digging it appears that in the jdk 1.6 update 22 renegotiation process is disabled by default. If your security constraints can effort this, try to enable the unsecure renegotiation by setting the sun.security.ssl.allowUnsafeRenegotiation system property to true. Here is some information about the process:

Session renegotiation is a mechanism within the SSL protocol that allows the client or the server to trigger a new SSL handshake during an ongoing SSL communication. Renegotiation was initially designed as a mechanism to increase the security of an ongoing SSL channel, by triggering the renewal of the crypto keys used to secure that channel. However, this security measure isn't needed with modern cryptographic algorithms. Additionally, renegotiation can be used by a server to request a client certificate (in order to perform client authentication) when the client tries to access specific, protected resources on the server.

Additionally there is the excellent post about this issue in details and written in (IMHO) understandable language.

The Sony Tablet P is old, but it can switch between 32:15 and 32:30 for each app in landscape mode, and vice-versa in portrait mode, so that's a minimum range to aim for

I am a newbie and these methods are not working for me. However, I tried a margin-top property in css and simply added the value of content pixels +5.

Example: my content layout had a height of 1000px so I put a margin-top value of 1005px in the footer css which gave me a 5px border and a footer that sits delightfully at the bottom of my site.

Probably an amateur way of doing it, but EFFECTIVE!!!

Parent class methods that are static are not part of a child class (although they are accessible), so there is no question of overriding it. Even if you add another static method in a subclass, identical to the one in its parent class, this subclass static method is unique and distinct from the static method in its parent class.

In my case I forgot it was packaging conflict jar vs pom. I forgot to write

<packaging>pom</packaging>

In every child pom.xml file

Make sure to remove any previous 'localhost' certificates as those could conflict with the one generated by IIS Express. I had this same error (ERR_SSL_PROTOCOL_ERROR), and it took me many hours to finally figure it out after trying out many many "solutions". My mistake was that I had created my own 'localhost' certificate and there were two of them. I had to delete both and have IIS Express recreate it.

Here is how you can check for and remove 'localhost' certificate:

• On Start, type ? mmc.exe
• File ? Add/Remove Snap-in...
• Select Certificates ? Add> ? Computer account ? Local computer
• Check under Certificates > Personal > Certificates
• Make sure the localhost certificate that exist has a friendly name "IIS Express Development Certificate". If not, delete it. Or if multiple, delete all.

On Visual Studio, select project and under property tab, enable SSL=true. Save, Build and Run. IIS Express will generate a new 'localhost' certificate.

Note: If it doesn't work, try these: make sure to disable IIS Express on VS project and stopping all running app on it prior to removing 'localhost' certificate. Also, you can go to 'control panel > programs' and Repair IIS Express.

Figured it out. The VM's in cloud engine don't come with a root password setup by default so you'll first need to change the password using

sudo passwd

If you do everything correctly, it should do something like this:

user@server[~]# sudo passwd
Changing password for user root.
New password: 
Retype new password: 
passwd: all authentication tokens updated successfully.

Simply return it:

<html>
    <?php
        $num = 1;
        echo $num;
    ?>
    <input type="button"
       name="lol" 
       value="Click to increment"
       onclick="Inc()" />
    <br>
    <script>
        function Inc()
        {
            Return <?php
            $num = 2;
            echo $num;
            ?>;
        }
    </script>
</html>

Arrays have an implicit member variable holding the length:

for(int i=0; i<myArray.length; i++) {
    System.out.println(myArray[i]);
}

Alternatively if using >=java5, use a for each loop:

for(Object o : myArray) {
    System.out.println(o);
}

You need to specify the encoding of the InputStreamReader using the Charset parameter.

Charset inputCharset = Charset.forName("ISO-8859-1");
InputStreamReader isr = new InputStreamReader(fis, inputCharset));

This is work for me. i hope to help you.

This error can occur if you project is compiling with JDK 1.6 and you have dependencies compiled with Java 7.

Here's a nice easy way I found:

h <- hist(g, breaks = 10, density = 10,
          col = "lightgray", xlab = "Accuracy", main = "Overall") 
xfit <- seq(min(g), max(g), length = 40) 
yfit <- dnorm(xfit, mean = mean(g), sd = sd(g)) 
yfit <- yfit * diff(h$mids[1:2]) * length(g) 

lines(xfit, yfit, col = "black", lwd = 2)

Another option is to use apt-file (i.e. apt-file search makeinfo). It may or may not be installed in your distro by default, but it is a great tool for determining what package a file belongs to.

Put this in the App.java:

public static void main(String[] args) throws UnknownHostException {
    SpringApplication app = new SpringApplication(App.class);
    SimpleCommandLinePropertySource source = new SimpleCommandLinePropertySource(args);
    if (!source.containsProperty("spring.profiles.active") &&
            !System.getenv().containsKey("SPRING_PROFILES_ACTIVE")) {

        app.setAdditionalProfiles("production");
    }
    ...
}

This is how it is done in JHipster

On Windows Rails 5.2, delete this file

c:/Sites/<your_folder>/tmp/pids/server.pid

and run

rails s

again.

Strings are immutable, meaning their contents cannot change. When you call replace(this,that) you end up with a totally new String. If you want to keep this new copy, you need to assign it to a variable. You can overwrite the old reference (a la sentence = sentence.replace(this,that) or a new reference as seen below:

public class Test{

    public static void main(String[] args) {

        String sentence = "Define, Measure, Analyze, Design and Verify";

        String replaced = sentence.replace("and", "");
        System.out.println(replaced);

    }
}

As an aside, note that I've removed the contains() check, as it is an unnecessary call here. If it didn't contain it, the replace will just fail to make any replacements. You'd only want that contains method if what you're replacing was different than the actual condition you're checking.

Do you mean that the formatter does not break long lines? Check Settings / Project Settings / Code Style / Wrapping.

Update: in later versions of IntelliJ, the option is under Settings / Editor / Code Style. And select Wrap when typing reaches right margin.

An Event declaration adds a layer of abstraction and protection on the delegate instance. This protection prevents clients of the delegate from resetting the delegate and its invocation list and only allows adding or removing targets from the invocation list.

 select persons.personsid,name,info.id,address
    -> from persons
    -> inner join persons on info.infoid = info.info.id;

Also, It can be done with LINQ

var str = "Hello@Hello&Hello(Hello)";
var characters = str.Select(c => char.IsLetter(c) ? c : ',')).ToArray();             
var output = new string(characters);
Console.WriteLine(output);

The $files array will get all files in the directory which the specified extension

$directory = 'pathto/directory';
$files = array();
$allowed_ext = array( "xml", "png", "jpg", "jpeg", "txt", "doc", "xls","csv"); 
// Check if the directory exists or not
if (file_exists($directory) && is_dir($directory)) {
    // Get the files in the directory
    $scan_contents = scandir($directory);
    // Filter out the current (.) and parent (..) directories 
    $files_array = array_diff($scan_contents, array('.', '..'));
    // Get each files of our directory with line break
    foreach ($files_array as $file) {
        //Get the file path
        $file_path = "$directory/$file";
        // Get the file extension
        $file_ext = strtolower(pathinfo($file_path, PATHINFO_EXTENSION));        
        if (in_array($file_ext, $allowed_ext) ) {
            $files[] = $file_path;
        }
    }
} 
echo '<pre>$files:-';
print_r($files);
echo '</pre>';

This issue has occurred to me when I had a bad reference in my render/return statement. (point to a non existing class). Also check your return statement code for bad references.

You need run visudo and in the editor that it opens write:

igor    ALL=(ALL) ALL

That line grants all permissions to user igor.

If you want permit to run only some commands, you need to list them in the line:

igor    ALL=(ALL) /bin/kill, /bin/ps

Swift 3.0

I decided to have a little fun with this and produce an extension on String. I might not be using the word truncate properly in what I'm having the function actually do.

extension String {

    func truncate(from initialSpot: Int, withLengthOf endSpot: Int) -> String? {

        guard endSpot > initialSpot else { return nil }
        guard endSpot + initialSpot <= self.characters.count else { return nil }

        let truncated = String(self.characters.dropFirst(initialSpot))
        let lastIndex = truncated.index(truncated.startIndex, offsetBy: endSpot)

        return truncated.substring(to: lastIndex)
    }

}

let favGameOfThronesSong = "Light of the Seven"

let word = favGameOfThronesSong.truncate(from: 1, withLengthOf: 4)
// "ight"

Try like this for query string:

from flask import Flask, request

app = Flask(__name__)

@app.route('/parameters', methods=['GET'])
def query_strings():

    args1 = request.args['args1']
    args2 = request.args['args2']
    args3 = request.args['args3']

    return '''<h1>The Query String are...{}:{}:{}</h1>''' .format(args1,args2,args3)


if __name__ == '__main__':

    app.run(debug=True)

Output:

There is nothing particularly tricky about the example you posted.

In a ternary operator, the first argument (the conditional) is evaluated and if the result is true, the second argument is evaluated and returned, otherwise, the third is evaluated and returned. Each of those arguments can be any valid code block, including function calls.

Think of it this way:

var x = (1 < 2) ? true : false;

Could also be written as:

var x = (1 < 2) ? getTrueValue() : getFalseValue();

This is perfectly valid, and those functions can contain any arbitrary code, whether it is related to returning a value or not. Additionally, the results of the ternary operation don't have to be assigned to anything, just as function results do not have to be assigned to anything:

(1 < 2) ? getTrueValue() : getFalseValue();

Now simply replace those with any arbitrary functions, and you are left with something like your example:

(1 < 2) ? removeItem($this) : addItem($this);

Now your last example really doesn't need a ternary at all, as it can be written like this:

x = (1 < 2);  // x will be set to "true"

Recently i encounter this issue and try all of the above method but none of them works for me.

Here is another Trick for to solve this error is

i just delete the eclipse configuration file and eclipse start working.. i don't know why but it works.

Maybe this helps someone else.

For systems without "dmesg -T" such as RHEL/CentOS 6, I liked the "dmesg_with_human_timestamps" function provided by lucas-cimon earlier. It has a bit of trouble with some of our boxes with large uptime though. Turns out that kernel timestamps in dmesg are derived from an uptime value kept by individual CPUs. Over time this gets out of sync with the real time clock. As a result, the most accurate conversion for recent dmesg entries will be based on the CPU clock rather than /proc/uptime. For example, on a particular CentOS 6.6 box here:

# grep "\.clock" /proc/sched_debug  | head -1
  .clock                         : 32103895072.444568
# uptime
 15:54:05 up 371 days, 19:09,  4 users,  load average: 3.41, 3.62, 3.57
# cat /proc/uptime
32123362.57 638648955.00

Accounting for the CPU uptime being in milliseconds, there's an offset of nearly 5 1/2 hours here. So I revised the script and converted it to native bash in the process:

dmesg_with_human_timestamps () {
    FORMAT="%a %b %d %H:%M:%S %Y"

    now=$(date +%s)
    cputime_line=$(grep -m1 "\.clock" /proc/sched_debug)

    if [[ $cputime_line =~ [^0-9]*([0-9]*).* ]]; then
        cputime=$((BASH_REMATCH[1] / 1000))
    fi

    dmesg | while IFS= read -r line; do
        if [[ $line =~ ^\[\ *([0-9]+)\.[0-9]+\]\ (.*) ]]; then
            stamp=$((now-cputime+BASH_REMATCH[1]))
            echo "[$(date +"${FORMAT}" --date=@${stamp})] ${BASH_REMATCH[2]}"
        else
            echo "$line"
        fi
    done
}

alias dmesgt=dmesg_with_human_timestamps

If you want to keep the heredoc indented for readability:

$ perl -pe 's/^\s*//' << EOF
     line 1
     line 2
EOF

The built-in method for supporting indented heredoc in Bash only supports leading tabs, not spaces.

Perl can be replaced with awk to save a few characters, but the Perl one is probably easier to remember if you know basic regular expressions.

You can log every query to a log file really easily:

mysql> SHOW VARIABLES LIKE "general_log%";

+------------------+----------------------------+
| Variable_name    | Value                      |
+------------------+----------------------------+
| general_log      | OFF                        |
| general_log_file | /var/run/mysqld/mysqld.log |
+------------------+----------------------------+

mysql> SET GLOBAL general_log = 'ON';

Do your queries (on any db). Grep or otherwise examine /var/run/mysqld/mysqld.log

Then don't forget to

mysql> SET GLOBAL general_log = 'OFF';

or the performance will plummet and your disk will fill!

you can do:

unset($messages[array_flip($messages)['401']]);

Explanation: Delete the element that has the key 401 after flipping the array.

Using ClipRRect you need to hardcode BorderRadius, so if you need complete circular stuff, use ClipOval instead.

ClipOval(
  child: Image.network(
    "image_url",
    height: 100,
    width: 100,
    fit: BoxFit.cover,
  ),
),

Cause you need to add jQuery library to your file:

jQuery UI is just an addon to jQuery which means that
first you need to include the jQuery library → and then the UI.

<script src="path/to/your/jquery.min.js"></script>
<script src="path/to/your/jquery.ui.min.js"></script>

Creating own answer, as nobody has considered that the split might not happened (shorter text). In that case we don't want to add '...' as suffix.

Ternary operator will sort that out:

var text = "blahalhahkanhklanlkanhlanlanhak";
var count = 35;

var result = text.slice(0, count) + (text.length > count ? "..." : "");

Can be closed to function:

function fn(text, count){
    return text.slice(0, count) + (text.length > count ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10));

And expand to helpers class so You can even choose if You want the dots or not:

function fn(text, count, insertDots){
    return text.slice(0, count) + (((text.length > count) && insertDots) ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10, true));
console.log(fn("aognaglkanglnagln", 10, false));

The real rule is: Don't throw away exceptions. The objectivity of the author of your quote is questionable, as evidenced by the fact that it ends with

or I will stab you

Of course, be aware that signals (by default) throw exceptions, and normally long-running processes are terminated through a signal, so catching Exception and not terminating on signal exceptions will make your program very hard to stop. So don't do this:

#! /usr/bin/ruby

while true do
  begin
    line = STDIN.gets
    # heavy processing
  rescue Exception => e
    puts "caught exception #{e}! ohnoes!"
  end
end

No, really, don't do it. Don't even run that to see if it works.

However, say you have a threaded server and you want all exceptions to not:

1. be ignored (the default)
2. stop the server (which happens if you say thread.abort_on_exception = true).

Then this is perfectly acceptable in your connection handling thread:

begin
  # do stuff
rescue Exception => e
  myLogger.error("uncaught #{e} exception while handling connection: #{e.message}")
    myLogger.error("Stack trace: #{backtrace.map {|l| "  #{l}\n"}.join}")
end

The above works out to a variation of Ruby's default exception handler, with the advantage that it doesn't also kill your program. Rails does this in its request handler.

Signal exceptions are raised in the main thread. Background threads won't get them, so there is no point in trying to catch them there.

This is particularly useful in a production environment, where you do not want your program to simply stop whenever something goes wrong. Then you can take the stack dumps in your logs and add to your code to deal with specific exception further down the call chain and in a more graceful manner.

Note also that there is another Ruby idiom which has much the same effect:

a = do_something rescue "something else"

In this line, if do_something raises an exception, it is caught by Ruby, thrown away, and a is assigned "something else".

Generally, don't do that, except in special cases where you know you don't need to worry. One example:

debugger rescue nil

The debugger function is a rather nice way to set a breakpoint in your code, but if running outside a debugger, and Rails, it raises an exception. Now theoretically you shouldn't be leaving debug code lying around in your program (pff! nobody does that!) but you might want to keep it there for a while for some reason, but not continually run your debugger.

Note:

1. If you've run someone else's program that catches signal exceptions and ignores them, (say the code above) then:

   • in Linux, in a shell, type pgrep ruby, or ps | grep ruby, look for your offending program's PID, and then run kill -9 <PID>.
   • in Windows, use the Task Manager (CTRL-SHIFT-ESC), go to the "processes" tab, find your process, right click it and select "End process".

2. If you are working with someone else's program which is, for whatever reason, peppered with these ignore-exception blocks, then putting this at the top of the mainline is one possible cop-out:

   %W/INT QUIT TERM/.each { |sig| trap sig,"SYSTEM_DEFAULT" }
   

   This causes the program to respond to the normal termination signals by immediately terminating, bypassing exception handlers, with no cleanup. So it could cause data loss or similar. Be careful!

3. If you need to do this:

   begin
     do_something
   rescue Exception => e
     critical_cleanup
     raise
   end
   

   you can actually do this:

   begin
     do_something
   ensure
     critical_cleanup
   end
   

   In the second case, critical cleanup will be called every time, whether or not an exception is thrown.

You just need to pass --recursive & --include "*"

aws --region "${BUCKET_REGION}" s3 cp s3://${BUCKET}${BUCKET_PATH}/ ${LOCAL_PATH}/tmp --recursive --include "*" 2>&1

If you look down the demo page a bit, you'll see a "Restricting Datepicker" section. Use the dropdown to specify the "Year dropdown shows last 20 years" demo , and hit view source:

$("#restricting").datepicker({ 
    yearRange: "-20:+0", // this is the option you're looking for
    showOn: "both", 
    buttonImage: "templates/images/calendar.gif", 
    buttonImageOnly: true 
});

You'll want to do the same (obviously changing -20 to -100 or something).

If you removed the make all line from your "fresh" target:

fresh :
    rm -f *.o $(EXEC)
    clear

You could simply run the command make fresh all, which will execute as make fresh; make all.

Some might consider this as a second instance of make, but it's certainly not a sub-instance of make (a make inside of a make), which is what your attempt seemed to result in.

You should define a key name while storing data to local storage which should be a string and value should be a string

 localStorage.setItem('dataSource', this.dataSource.length);

and to print, you should use getItem

console.log(localStorage.getItem('dataSource'));

use your ip address or a service like noip.com if you need something more practical. Then eventually configure your router properly so incoming connection will be forwarded to the machine with the server running.

If you need an easier way to do it, and don't want much fuss, a simple execution could be:

raise Exception.new('something bad happened!')

This will raise an exception, say e with e.message = something bad happened!

and then you can rescue it as you are rescuing all other exceptions in general.

You can autowire the Environment

@Autowired
Environment env;

Environment offers:

• String[] getActiveProfiles(),
• String[] getDefaultProfiles(), and
• boolean acceptsProfiles(String... profiles)

public boolean checkForEmail() {
        Context c;
        EditText mEtEmail=(EditText)findViewById(R.id.etEmail);
        String mStrEmail = mEtEmail.getText().toString();
        if (android.util.Patterns.EMAIL_ADDRESS.matcher(mStrEmail).matches()) {
            return true;
        }
        Toast.makeText(this,"Email is not valid", Toast.LENGTH_LONG).show();
        return false;
    }


    public boolean checkForMobile() {
        Context c;
        EditText mEtMobile=(EditText)findViewById(R.id.etMobile);
        String mStrMobile = mEtMobile.getText().toString();
        if (android.util.Patterns.PHONE.matcher(mStrMobile).matches()) {
            return true;
        }
        Toast.makeText(this,"Phone No is not valid", Toast.LENGTH_LONG).show();
        return false;
    }

Short answer

1. Reattach without ejecting others: screen -x
2. Get list of displays: ^A *, select the one to disconnect, press d

Explained answer

Background: When I was looking for the solution with same problem description, I have always landed on this answer. I would like to provide more sensible solution. (For example: the other attached screen has a different size and a I cannot force resize it in my terminal.)

Note: PREFIX is usually ^A = ctrl+a

Note: the display may also be called:

• "user front-end" (in at command manual in screen)
• "client" (tmux vocabulary where this functionality is detach-client)
• "terminal" (as we call the window in our user interface) /depending on

1. Reattach a session: screen -x

-x attach to a not detached screen session without detaching it

2. List displays of this session: PREFIX *

It is the default key binding for: PREFIX :displays. Performing it within the screen, identify the other display we want to disconnect (e.g. smaller size). (Your current display is displayed in brighter color/bold when not selected).

term-type   size         user interface           window       Perms
---------- ------- ---------- ----------------- ----------     -----
 screen     240x60         you@/dev/pts/2      nb  0(zsh)        rwx
 screen      78x40         you@/dev/pts/0      nb  0(zsh)        rwx

Using arrows ? ?, select the targeted display, press d If nothing happens, you tried to detach your own display and screen will not detach it. If it was another one, within a second or two, the entry will disappear.

Press ENTER to quit the listing.

Optionally: in order to make the content fit your screen, reflow: PREFIX F (uppercase F)

Excerpt from man page of screen:

displays

Shows a tabular listing of all currently connected user front-ends (displays). This is most useful for multiuser sessions. The following keys can be used in displays list:

• mouseclick Move to the selected line. Available when "mousetrack" is set to on.
• space Refresh the list
• d Detach that display
• D Power detach that display
• C-g, enter, or escape Exit the list

You need to specify the path where your chromedriver is located.

1. Download chromedriver for your desired platform from here.

2. Place chromedriver on your system path, or where your code is.

3. If not using a system path, link your chromedriver.exe (For non-Windows users, it's just called chromedriver):

   browser = webdriver.Chrome(executable_path=r"C:\path\to\chromedriver.exe")
   

   (Set executable_path to the location where your chromedriver is located.)

   If you've placed chromedriver on your System Path, you can shortcut by just doing the following:

   browser = webdriver.Chrome()

4. If you're running on a Unix-based operating system, you may need to update the permissions of chromedriver after downloading it in order to make it executable:

   chmod +x chromedriver

5. That's all. If you're still experiencing issues, more info can be found on this other StackOverflow article: Can't use chrome driver for Selenium

As others have pointed out, params values can come from the query string of a GET request, or the form data of a POST request, but there's also a third place they can come from: The path of the URL.

As you might know, Rails uses something called routes to direct requests to their corresponding controller actions. These routes may contain segments that are extracted from the URL and put into params. For example, if you have a route like this:

match 'products/:id', ...

Then a request to a URL like http://example.com/products/42 will set params[:id] to 42.

1. This is not done in PHP. It's part of the <head> tags in a HTML page.
2. That icon is called a favicon. According to Wikipedia:

   A favicon (short for favorites icon), also known as a shortcut icon, website icon, URL icon, or bookmark icon is a 16×16 or 32×32 pixel square icon associated with a particular website or webpage.

3. Adding it is easy. Just add an .ico image file that is either 16x16 pixels or 32x32 pixels. Then, in the web pages, add <link rel="shortcut icon" href="favicon.ico" type="image/x-icon"> to the <head> element.
4. You can easily generate favicons here.

This will update your android SDK and accept the license in the same time (ex for Android 25):

android update sdk --no-ui --filter build-tools-25.0.0,android-25,extra-android-m2repository

If I've understood this right, bootstrap provides a CSS class for just this case. Add 'pull-right' to the menu 'ul':

<ul class="dropdown-menu pull-right">

..and the end result is that the menu options appear right-aligned, in line with the button they drop down from.

I've had a similar issue with this error. In my case, I was entering the incorrect password for the Keystore.

I changed the password for the Keystore to match what I was entering (I didn't want to change the password I was entering), but it still gave the same error.

keytool -storepasswd -keystore keystore.jks

Problem was that I also needed to change the Key's password within the Keystore.

When I initially created the Keystore, the Key was created with the same password as the Keystore (I accepted this default option). So I had to also change the Key's password as follows:

keytool -keypasswd  -alias my.alias -keystore keystore.jks

What you are trying to do is very dangerous. Think about this carefully. There is a very good reason for the default behaviour of auto increment.

Consider this:

A record is deleted in one table that has a relationship with another table. The corresponding record in the second table cannot be deleted for auditing reasons. This record becomes orphaned from the first table. If a new record is inserted into the first table, and a sequential primary key is used, this record is now linked to the orphan. Obviously, this is bad. By using an auto incremented PK, an id that has never been used before is always guaranteed. This means that orphans remain orphans, which is correct.

Recently had this problem but with unkown number of promises.Solved using jQuery.map().

function methodThatChainsPromises(args) {

    //var args = [
    //    'myArg1',
    //    'myArg2',
    //    'myArg3',
    //];

    var deferred = $q.defer();
    var chain = args.map(methodThatTakeArgAndReturnsPromise);

    $q.all(chain)
    .then(function () {
        $log.debug('All promises have been resolved.');
        deferred.resolve();
    })
    .catch(function () {
        $log.debug('One or more promises failed.');
        deferred.reject();
    });

    return deferred.promise;
}

There are also some ST2/ST3 Plugins for such tasks. I do like these two:

• Delete Blank Lines (also available via Package Control)
• Trailing Spaces (also available via Package Control)

The first one has two methods for removing empty/unnecessary lines. One of them called Delete Surplus Blank Lines which is cool. It removes only those lines that are followed by another empty line

Use regular expression to achieve this task. Please refer the below code.

public static void main(String[] args) {
    try {

        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        System.out.print("Enter your content: ");
        String data = reader.readLine();            
        boolean b1 = Pattern.matches("^\\d+$", data);
        boolean b2 = Pattern.matches("[0-9a-zA-Z([+-]?\\d*\\.+\\d*)]*", data); 
        boolean b3 = Pattern.matches("^([+-]?\\d*\\.+\\d*)$", data);
        if(b1) {
            System.out.println("It is integer.");
        } else if(b2) {
            System.out.println("It is String. ");
        } else if(b3) {
            System.out.println("It is Float. ");
        }           
    } catch (IOException ex) {
        Logger.getLogger(TypeOF.class.getName()).log(Level.SEVERE, null, ex);
    }
}

After a few hours of playing with the Oracle JDK 1.6, I was able to make it work without any code change. The magic is done by Bouncy Castle to handle SSL and allow JDK 1.6 to run with TLSv1.2 by default. In theory, it could also be applied to older Java versions with eventual adjustments.

1. Download the latest Java 1.6 version from the Java Archive Oracle website
2. Uncompress it on your preferred path and set your JAVA_HOME environment variable
3. Update the JDK with the latest Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 6
4. Download the Bounce Castle files bcprov-jdk15to18-165.jar and bctls-jdk15to18-165.jar and copy them into your ${JAVA_HOME}/jre/lib/ext folder
5. Modify the file ${JAVA_HOME}/jre/lib/security/java.security commenting out the providers section and adding some extra lines

    # Original security providers (just comment it)
    # security.provider.1=sun.security.provider.Sun
    # security.provider.2=sun.security.rsa.SunRsaSign
    # security.provider.3=com.sun.net.ssl.internal.ssl.Provider
    # security.provider.4=com.sun.crypto.provider.SunJCE
    # security.provider.5=sun.security.jgss.SunProvider
    # security.provider.6=com.sun.security.sasl.Provider
    # security.provider.7=org.jcp.xml.dsig.internal.dom.XMLDSigRI
    # security.provider.8=sun.security.smartcardio.SunPCSC

    # Add the Bouncy Castle security providers with higher priority
    security.provider.1=org.bouncycastle.jce.provider.BouncyCastleProvider
    security.provider.2=org.bouncycastle.jsse.provider.BouncyCastleJsseProvider
    
    # Original security providers with different priorities
    security.provider.3=sun.security.provider.Sun
    security.provider.4=sun.security.rsa.SunRsaSign
    security.provider.5=com.sun.net.ssl.internal.ssl.Provider
    security.provider.6=com.sun.crypto.provider.SunJCE 
    security.provider.7=sun.security.jgss.SunProvider
    security.provider.8=com.sun.security.sasl.Provider
    security.provider.9=org.jcp.xml.dsig.internal.dom.XMLDSigRI
    security.provider.10=sun.security.smartcardio.SunPCSC

    # Here we are changing the default SSLSocketFactory implementation
    ssl.SocketFactory.provider=org.bouncycastle.jsse.provider.SSLSocketFactoryImpl

Just to make sure it's working let's make a simple Java program to download files from one URL using https.

import java.io.*;
import java.net.*;


public class DownloadWithHttps {

    public static void main(String[] args) {
        try {
            URL url = new URL(args[0]);
            System.out.println("File to Download: " + url);
            String filename = url.getFile();
            File f = new File(filename);
            System.out.println("Output File: " + f.getName());
            BufferedInputStream in = new BufferedInputStream(url.openStream());
            FileOutputStream fileOutputStream = new FileOutputStream(f.getName());
            int bytesRead;
            byte dataBuffer[] = new byte[1024];

            while ((bytesRead = in.read(dataBuffer, 0, 1024)) != -1) {
                fileOutputStream.write(dataBuffer, 0, bytesRead);
            }
            fileOutputStream.close();

        } catch (Exception ex) {
            ex.printStackTrace();
        }

    }
}

Now, just compile the DownloadWithHttps.java program and execute it with your Java 1.6

${JAVA_HOME}/bin/javac DownloadWithHttps.java
${JAVA_HOME}/bin/java DownloadWithHttps https://repo1.maven.org/maven2/org/apache/commons/commons-lang3/3.10/commons-lang3-3.10.jar

Important note for Windows users: This solution was tested in a Linux OS, if you are using Windows, please replace the ${JAVA_HOME} by %JAVA_HOME%.

Here's a quick and dirty ctypes tutorial.

First, write your C library. Here's a simple Hello world example:

testlib.c

#include <stdio.h>

void myprint(void);

void myprint()
{
    printf("hello world\n");
}

Now compile it as a shared library (mac fix found here):

$ gcc -shared -Wl,-soname,testlib -o testlib.so -fPIC testlib.c

# or... for Mac OS X 
$ gcc -shared -Wl,-install_name,testlib.so -o testlib.so -fPIC testlib.c

Then, write a wrapper using ctypes:

testlibwrapper.py

import ctypes

testlib = ctypes.CDLL('/full/path/to/testlib.so')
testlib.myprint()

Now execute it:

$ python testlibwrapper.py

And you should see the output

Hello world
$

If you already have a library in mind, you can skip the non-python part of the tutorial. Make sure ctypes can find the library by putting it in /usr/lib or another standard directory. If you do this, you don't need to specify the full path when writing the wrapper. If you choose not to do this, you must provide the full path of the library when calling ctypes.CDLL().

This isn't the place for a more comprehensive tutorial, but if you ask for help with specific problems on this site, I'm sure the community would help you out.

PS: I'm assuming you're on Linux because you've used ctypes.CDLL('libc.so.6'). If you're on another OS, things might change a little bit (or quite a lot).

I had trouble initially (don't know why) but I finally got the following to work with SSMS for SQL Server 2008.

Insert ALT-13 then ALT-10 where desired in your text in a varchar type column (music symbol and square appear and save when you leave the row). Initially you'll get a warning(!) to the left of the row after leaving it. Just re-excecute your SELECT statement. The symbols and warning will disappear but the CR/LF is saved. You must include ALT-13 if you want the text displayed properly in HTML. To quickly determine if this worked, copy the saved text from SSMS to Notepad.

Alternatively, if you can't get this to work, you can do the same thing starting with an nvarchar column. However the symbols will be saved as text so you must convert the column to varchar when you're done to convert the symbols to CR/LFs.

If you want to copy & paste text from another source (another row or table, HTML, Notepad, etc.) and not have your text truncated at the first CR, I found that the solution (Programmer's Notepad) referred to at the following link works with SSMS for SQL Server 2008 using varchar & nvarchar column types.

http://dbaspot.com/sqlserver-programming/409451-how-i-enter-linefeed-when-modifying-text-field-2.html#post1523145

The author of the post (dbaspot) mentions something about creating SQL queries - not sure what he means. Just follow the intructions about Programmer's Notepad and you can copy & paste text to and from SSMS and retain the LFs both ways (using Programmer's Notepad, not Notepad). To have the text display properly in HTML you must add CRs to the text copied to SSMS. The best way to do this is by executing an UPDATE statement using the REPLACE function to add CRs as follows:

UPDATE table_name
SET column_name = REPLACE(column_name , CHAR(10), CHAR(13) + CHAR(10)).

Below is combination of what I've found from SoccerPlayer's post Here and the following link that made it easier for me to attach an xlsx file. Found Here

file = 'File.xlsx'
username=''
password=''
send_from = ''
send_to = 'recipient1 , recipient2'
Cc = 'recipient'
msg = MIMEMultipart()
msg['From'] = send_from
msg['To'] = send_to
msg['Cc'] = Cc
msg['Date'] = formatdate(localtime = True)
msg['Subject'] = ''
server = smtplib.SMTP('smtp.gmail.com')
port = '587'
fp = open(file, 'rb')
part = MIMEBase('application','vnd.ms-excel')
part.set_payload(fp.read())
fp.close()
encoders.encode_base64(part)
part.add_header('Content-Disposition', 'attachment', filename='Name File Here')
msg.attach(part)
smtp = smtplib.SMTP('smtp.gmail.com')
smtp.ehlo()
smtp.starttls()
smtp.login(username,password)
smtp.sendmail(send_from, send_to.split(',') + msg['Cc'].split(','), msg.as_string())
smtp.quit()

I have found class<T> useful when I create service registry lookups. E.g.

<T> T getService(Class<T> serviceClass)
{
    ...
}

For 2 use cases:

1. I only want n overall results, not n results per file, the grep -m 2 is per file max occurrence.
2. I often use git grep which doesn't take -m

A good alternative in these scenarios is grep | sed 2q to grep first 2 occurrences across all files. sed documentation: https://www.gnu.org/software/sed/manual/sed.html

You need to encode Unicode explicitly before writing to a file, otherwise Python does it for you with the default ASCII codec.

Pick an encoding and stick with it:

f.write(printinfo.encode('utf8') + '\n')

or use io.open() to create a file object that'll encode for you as you write to the file:

import io

f = io.open(filename, 'w', encoding='utf8')

You may want to read:

• The Python Unicode HOWTO

• Pragmatic Unicode by Ned Batchelder

• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) by Joel Spolsky

before continuing.

If rownumber() over(...) is available for you ....

select OrderNO,
       PartCode,
       Quantity
from (select OrderNO,
             PartCode,
             Quantity,
             row_number() over(partition by OrderNO order by DateEntered desc) as rn
      from YourTable) as T
where rn = 1      

Another option is http://localtunnel.me/ if you're running NodeJS

npm install -g localtunnel

Start a webserver on any local port such as 8080, and create a tunnel to that port:

lt -p 8080

which will return a public URL for your localhost at randomname.localtunnel.me. You can request your own subdomain if it's available:

lt -p 8080 -s myname

which will return myname.localtunnel.me

It usually represents some common service (protocol) that bluetooth device supports.

When creating your own rfcomm server (with listenUsingRfcommWithServiceRecord), you should specify your own UUID so that the clients connecting to it could identify it; it is one of the reasons why createRfcommSocketToServiceRecord requires an UUID parameter.

Otherwise, some common services have the same UUID, just find one you need and use it.

See here

If you use Tink, then there is:

package com.google.crypto.tink.subtle;

public final class Hex {
  public static String encode(final byte[] bytes) { ... }
  public static byte[] decode(String hex) { ... }
}

so something like this should work:

import com.google.crypto.tink.subtle.Hex;

byte[] bytes = {-1, 0, 1, 2, 3 };
String enc = Hex.encode(bytes);
byte[] dec = Hex.decode(enc)

You might have to be more specific and specify the app name as well (this is the name of the app as you have it in heroku). For example:

heroku ps:scale web=0 --app myAppName 

Otherwise you might get the following message:

 % heroku ps:scale web=0
Scaling dynos... failed
 !    No app specified.
 !    Run this command from an app folder or specify which app to use with --app APP.

Why use a <a href>? I solve it like this:

<span class='a'>fake link</span>

And style it with:

.a {text-decoration:underline; cursor:pointer;}

You can easily access it with jQuery:

$(".a").click();