I know this question has been answered but I also see there is another way missing which I would like to cover it.There are multiple ways to achieve this.

1- innerHTML

document.getElementById("ShowButton").innerHTML = 'Show Filter';

You can insert HTML into this. But the disadvantage of this method is, it has cross site security attacks. So for adding text, its better to avoid this for security reasons.

2- innerText

document.getElementById("ShowButton").innerText = 'Show Filter';

This will also achieve the result but its heavy under the hood as it requires some layout system information, due to which the performance decreases. Unlike innerHTML, you cannot insert the HTML tags with this. Check Performance Here

3- textContent

document.getElementById("ShowButton").textContent = 'Show Filter';

This will also achieve the same result but it doesn't have security issues like innerHTML as it doesn't parse HTML like innerText. Besides, it is also light due to which performance increases.

So if a text has to be added like above, then its better to use textContent.

To answer to your second question. You can just hit the IP address of the machine that your flask app is running, e.g. 192.168.1.100 in a browser on different machine on the same network and you are there. Though, you will not be able to access it if you are on a different network. Firewalls or VLans can cause you problems with reaching your application. If that computer has a public IP, then you can hit that IP from anywhere on the planet and you will be able to reach the app. Usually this might impose some configuration, since most of the public servers are behind some sort of router or firewall.

The whole point of a workspace is to group a set of related projects together that usually make up an application. The workspace framework comes down to the eclipse.core.resources plugin and it naturally by design makes sense.

Projects have natures, builders are attached to specific projects and as you change resources in one project you can see in real time compile or other issues in projects that are in the same workspace. So the strategy I suggest is have different workspaces for different projects you work on but without a workspace in eclipse there would be no concept of a collection of projects and configurations and after all it's an IDE tool.

If that does not make sense ask how Net Beans or Visual Studio addresses this? It's the same theme. Maven is a good example, checking out a group of related maven projects into a workspace lets you develop and see errors in real time. If not a workspace what else would you suggest? An RCP application can be a different beast depending on what its used for but in the true IDE sense I don't know what would be a better solution than a workspace or context of projects. Just my thoughts. - Duncan

With an HTML form like:

<input type="submit" name="btnSubmit" value="Save Changes" />
<input type="submit" name="btnDelete" value="Delete" />

The PHP code to use would look like:

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Something posted

    if (isset($_POST['btnDelete'])) {
        // btnDelete
    } else {
        // Assume btnSubmit
    }
}

You should always assume or default to the first submit button to appear in the form HTML source code. In practice, the various browsers reliably send the name/value of a submit button with the post data when:

1. The user literally clicks the submit button with the mouse or pointing device
2. Or there is focus on the submit button (they tabbed to it), and then the Enter key is pressed.

Other ways to submit a form exist, and some browsers/versions decide not to send the name/value of any submit buttons in some of these situations. For example, many users submit forms by pressing the Enter key when the cursor/focus is on a text field. Forms can also be submitted via JavaScript, as well as some more obscure methods.

It's important to pay attention to this detail, otherwise you can really frustrate your users when they submit a form, yet "nothing happens" and their data is lost, because your code failed to detect a form submission, because you did not anticipate the fact that the name/value of a submit button may not be sent with the post data.

Also, the above advice should be used for forms with a single submit button too because you should always assume a default submit button.

I'm aware that the Internet is filled with tons of form-handler tutorials, and almost of all them do nothing more than check for the name and value of a submit button. But, they're just plain wrong!

One more variant is using very powerfull JOOR library https://github.com/jOOQ/jOOR

MyObject myObject = new MyObject()
on(myObject).get("privateField");  

It allows to modify any fields like final static constants and call yne protected methods without specifying concrete class in the inheritance hierarhy

<!-- https://mvnrepository.com/artifact/org.jooq/joor-java-8 -->
<dependency>
     <groupId>org.jooq</groupId>
     <artifactId>joor-java-8</artifactId>
     <version>0.9.7</version>
</dependency>

You were close:

if (typeof a_string === 'string') {
    // this is a string
}

On a related note: the above check won't work if a string is created with new String('hello') as the type will be Object instead. There are complicated solutions to work around this, but it's better to just avoid creating strings that way, ever.

I've encountered this problem very recently. Unfortunately, I had to do 2 tables, one for the header and one for the body. It's probably not the best approach ever but here goes:

<html>_x000D_
<head>_x000D_
    <title>oh hai</title>_x000D_
</head>_x000D_
<body>_x000D_
    <table id="tableHeader">_x000D_
        <tr>_x000D_
            <th style="width:100px; background-color:#CCCCCC">col header</th>_x000D_
            <th style="width:100px; background-color:#CCCCCC">col header</th>_x000D_
        </tr>_x000D_
    </table>_x000D_
    <div style="height:50px; overflow:auto; width:250px">_x000D_
        <table>_x000D_
            <tr>_x000D_
                <td style="height:50px; width:100px; background-color:#DDDDDD">data1</td>_x000D_
                <td style="height:50px; width:100px; background-color:#DDDDDD">data1</td>_x000D_
            </tr>_x000D_
            <tr>_x000D_
                <td style="height:50px; width:100px; background-color:#DDDDDD">data2</td>_x000D_
                <td style="height:50px; width:100px; background-color:#DDDDDD">data2</td>_x000D_
            </tr>_x000D_
        </table>_x000D_
    </div>_x000D_
</body>_x000D_
</html>

This worked for me, it's probably not the elegant way but it does work. I'll investigate so see if I can do something better, but it allows for multiple tables.

Go read on the overflow propriety to see if it fits your need

Just use:

onRefresh={true}

inside your flatList component.

When you open the file you want to write to, open it with a specific encoding that can handle all the characters.

with open('filename', 'w', encoding='utf-8') as f:
    print(r['body'], file=f)

You'll have to pass the new ordinal position to insert using len in this case:

In [62]:

a=[1,2,3,4]
a.insert(len(a),5)
a
Out[62]:
[1, 2, 3, 4, 5]

To add:

$arr["key"] = "value";

Then simply return $arr

Can't return directly like this way return $arr["key"] = "value";

(a[n:]+[default])[0]

This is probably better as a gets larger

(a[n:n+1]+[default])[0]

This works because if a[n:] is an empty list if n => len(a)

Here is an example of how this works with range(5)

>>> range(5)[3:4]
[3]
>>> range(5)[4:5]
[4]
>>> range(5)[5:6]
[]
>>> range(5)[6:7]
[]

And the full expression

>>> (range(5)[3:4]+[999])[0]
3
>>> (range(5)[4:5]+[999])[0]
4
>>> (range(5)[5:6]+[999])[0]
999
>>> (range(5)[6:7]+[999])[0]
999

I use this:

use YourDB;

SELECT 
    object_name(object_id), 
    last_execution_time, 
    last_elapsed_time, 
    execution_count
FROM   
     sys.dm_exec_procedure_stats ps 
where 
      lower(object_name(object_id)) like 'Appl-Name%'
order by 1

Using the following will return a single 0 when input is all 0.

string s = "0000000"
s = int.Parse(s).ToString();

You can optimize your code by calling GetProperties only once per type:

public static string ToStringNullSafe(this object obj)
{
    return obj != null ? obj.ToString() : String.Empty;
}
public static bool Compare<T>(T a, T b, params string[] ignore)
{
    var aProps = a.GetType().GetProperties();
    var bProps = b.GetType().GetProperties();
    int count = aProps.Count();
    string aa, bb;
    for (int i = 0; i < count; i++)
    {
        aa = aProps[i].GetValue(a, null).ToStringNullSafe();
        bb = bProps[i].GetValue(b, null).ToStringNullSafe();
        if (aa != bb && ignore.Where(x => x == aProps[i].Name).Count() == 0)
        {
            return false;
        }
    }
    return true;
}

One thing I've used with good results is the following (I don't know if its mentioned already because I can't remember its name).

You precompute a table T with a random number for each character in your key's alphabet [0,255]. You hash your key 'k0 k1 k2 ... kN' by taking T[k0] xor T[k1] xor ... xor T[kN]. You can easily show that this is as random as your random number generator and its computationally very feasible and if you really run into a very bad instance with lots of collisions you can just repeat the whole thing using a fresh batch of random numbers.

If it was installed with plesk (not sure if it's just that, or on the phpmyadmin side: It changes the root user to admin.

1. Implement a slot in your QMainWindow where you will open your new Window,
2. Place a widget on your QMainWindow,
3. Connect a signal from this widget to a slot from the QMainWindow (for example: if the widget is a QPushButton connect the signal click() to the QMainWindow custom slot you have created).

Code example:

MainWindow.h

// ...
include "newwindow.h"
// ...
public slots:
   void openNewWindow();
// ...
private:
   NewWindow *mMyNewWindow;
// ...
}

MainWindow.cpp

// ...
   MainWindow::MainWindow()
   {
      // ...
      connect(mMyButton, SIGNAL(click()), this, SLOT(openNewWindow()));
      // ...
   }
// ...
void MainWindow::openNewWindow()
{
   mMyNewWindow = new NewWindow(); // Be sure to destroy your window somewhere
   mMyNewWindow->show();
   // ...
}

This is an example on how display a custom new window. There are a lot of ways to do this.

You can simply use JavaScripts join() function for that. This would simply look like a.value.join(','). The output would be a string though.

you can also do this

$model->hidden1 = 'your value';// better put it on controller
$form->field($model, 'hidden1')->hiddenInput()->label(false);

this is a better option if you set value on controller

$model = new SomeModelName();

if ($model->load(Yii::$app->request->post()) && $model->save()) {
    return $this->redirect(['view', 'id' => $model->group_id]);
 } else {
    $model->hidden1 = 'your value';
    return $this->render('create', [
        'model' => $model,
    ]);
 }

I was having this same issue - I am using Selectize with Rails and wanted to Selectize an association field - I wanted the name of the associated record to show up in the dropdown, but I needed the value of each option to be the id of the record, since Rails uses the value to set associations.

I solved this by setting a coffeescript var of @valueAttr to the id of each object and a var of @dataAttr to the name of the record. Then I went through each option and set:

 opts.labelField = @dataAttr
 opts.valueField = @valueAttr

It helps to see the full diff: https://github.com/18F/C2/pull/912/files

The most common reason for this message seems to be unzipping the eclipse zip file wrongly (for instance unzipping without recreating the directory structure). Therefore please unzip the zipped Eclipse again with a good unzip tool (like 7-zip) and make sure that the necessary sub directories are created during the extraction.

Also make sure that the path to the unzipped Eclipse does not get very long. I've seen cases where Eclipse was unzipped into a deeply nested directory structure (to put it at some place into an SVN repository) and that led to the same error message.

If that still doesn't work, you may try launching eclipse.exe with administrative rights. That should not really be necessary, but maybe your access rights are somehow broken after the re-installation of Windows.

There are 2 different ways you can look for lowercase characters:

1. Use str.islower() to find lowercase characters. Combined with a list comprehension, you can gather all lowercase letters:

   lowercase = [c for c in s if c.islower()]
   

2. You could use a regular expression:

   import re
   
   lc = re.compile('[a-z]+')
   lowercase = lc.findall(s)
   

The first method returns a list of individual characters, the second returns a list of character groups:

>>> import re
>>> lc = re.compile('[a-z]+')
>>> lc.findall('AbcDeif')
['bc', 'eif']

you pass the context to class B in it's constructor, and make sure you pass getApplicationContext() instead of a activityContext()

You can do something like req.param('tagId')

readonly can be initialized at declaration or get its value from the constructor only. Unlike const it has to be initialized and declare at the same time. readonly has everything const has, plus constructor initialization

code https://repl.it/HvRU/1

using System;

class MainClass {
    public static void Main (string[] args) {

        Console.WriteLine(new Test().c);
        Console.WriteLine(new Test("Constructor").c);
        Console.WriteLine(new Test().ChangeC()); //Error A readonly field 
        // `MainClass.Test.c' cannot be assigned to (except in a constructor or a 
        // variable initializer)
    }


    public class Test {
        public readonly string c = "Hello World";
        public Test() {

        }

        public Test(string val) {
          c = val;
        }

        public string ChangeC() {
            c = "Method";
            return c ;
        }
    }
}

As others have said, in general you use @synthesize to have the compiler generate the getters and/ or settings for you, and @dynamic if you are going to write them yourself.

There is another subtlety not yet mentioned: @synthesize will let you provide an implementation yourself, of either a getter or a setter. This is useful if you only want to implement the getter for some extra logic, but let the compiler generate the setter (which, for objects, is usually a bit more complex to write yourself).

However, if you do write an implementation for a @synthesize'd accessor it must still be backed by a real field (e.g., if you write -(int) getFoo(); you must have an int foo; field). If the value is being produce by something else (e.g. calculated from other fields) then you have to use @dynamic.

To pass the parameter you need to use resolve and inject the items in controller

$scope.Edit = function (Id) {
   var modalInstance = $modal.open({
      templateUrl: '/app/views/admin/addeditphone.html',
      controller: 'EditCtrl',
      resolve: {
         editId: function () {
           return Id;
         }
       }
    });
}

Now if you will use like this:

app.controller('EditCtrl', ['$scope', '$location'
       , function ($scope, $location, editId)

in this case editId will be undefined. You need to inject it, like this:

app.controller('EditCtrl', ['$scope', '$location', 'editId'
     , function ($scope, $location, editId)

Now it will work smooth, I face the same problem many time, once injected, everything start working!

You can also make it with BufferedReader if you want to validate user input, like this:

import java.io.BufferedReader;
import java.io.InputStreamReader; 
class Areas {
    public static void main(String args[]){
        float PI = 3.1416f;
        int r=0;
        String rad; //We're going to read all user's text into a String and we try to convert it later
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); //Here you declare your BufferedReader object and instance it.
        System.out.println("Radius?");
        try{
            rad = br.readLine(); //We read from user's input
            r = Integer.parseInt(rad); //We validate if "rad" is an integer (if so we skip catch call and continue on the next line, otherwise, we go to it (catch call))
            System.out.println("Circle area is: " + PI*r*r + " Perimeter: " +PI*2*r); //If all was right, we print this
        }
        catch(Exception e){
            System.out.println("Write an integer number"); //This is what user will see if he/she write other thing that is not an integer
            Areas a = new Areas(); //We call this class again, so user can try it again
           //You can also print exception in case you want to see it as follows:
           // e.printStackTrace();
        }
    }
}

Because Scanner class won't allow you to do it, or not that easy...

And to validate you use "try-catch" calls.

You can just write multiple email address to whom you want to send and pass it as the first argument. Example:-

mail("[email protected], [email protected]","Subject","Message","From: [email protected]");

Use overloaded functions. Does not require dynamic_cast or even RTTI support:

class A {};
class B : public A {};

class Foo {
public:
    void Bar(A& a) {
        // do something
    }
    void Bar(B& b) {
        Bar(static_cast<A&>(b));
        // do B specific stuff
    }
};

No idea why the cast works, but Foo::MEMBER isn't allocated until the first time Foo is loaded, and since you're never loading it, it's never allocated. If you had a reference to a Foo somewhere, it would probably work.

also this should work (not tested):

SELECT u.* FROM room u JOIN facilities_r fu ON fu.id_uc = u.id_uc AND u.id_fu IN(4,3) WHERE 1 AND vizibility = 1 GROUP BY id_uc ORDER BY u_premium desc , id_uc desc

If u.id_fu is a numeric field then you can remove the ' around them. The same for vizibility. Only if the field is a text field (data type char, varchar or one of the text-datatype e.g. longtext) then the value has to be enclosed by ' or even ".

Also I and Oracle too recommend to enclose table and field names in backticks. So you won't get into trouble if a field name contains a keyword.

My preferred solution to this would be this:

(crontab -l | grep . ; echo -e "0 4 * * * myscript\n") | crontab -

This will make sure you are handling the blank new line at the bottom correctly. To avoid issues with crontab you should usually end the crontab file with a blank new line. And the script above makes sure it first removes any blank lines with the "grep ." part, and then add in a new blank line at the end with the "\n" in the end of the script. This will also prevent getting a blank line above your new command if your existing crontab file ends with a blank line.

InnoDB doesn't cope well with 'random' primary keys. Try a sequential key or auto-increment, and I believe you'll see better performance. Your 'real' key field could still be indexed, but for a bulk insert you might be better off dropping and recreating that index in one hit after the insert in complete. Would be interested to see your benchmarks for that!

Some related questions

• Slow INSERT into InnoDB table with random PRIMARY KEY column's value
• Why do MySQL InnoDB inserts / updates on large tables get very slow when there are a few indexes?
• InnoDB inserts very slow and slowing down

You can use a property setter to raise an event whenever the value of a field is going to change.

You can have your own EventHandler delegate or you can use the famous System.EventHandler delegate.

Usually there's a pattern for this:

1. Define a public event with an event handler delegate (that has an argument of type EventArgs).
2. Define a protected virtual method called OnXXXXX (OnMyPropertyValueChanged for example). In this method you should check if the event handler delegate is null and if not you can call it (it means that there are one or more methods attached to the event delegation).
3. Call this protected method whenever you want to notify subscribers that something has changed.

Here's an example

private int _age;

//#1
public event System.EventHandler AgeChanged;

//#2
protected virtual void OnAgeChanged()
{ 
     if (AgeChanged != null) AgeChanged(this,EventArgs.Empty); 
}

public int Age
{
    get
    {
         return _age;
    }

    set
    {
         //#3
         _age=value;
         OnAgeChanged();
    }
 }

The advantage of this approach is that you let any other classes that want to inherit from your class to change the behavior if necessary.

If you want to catch an event in a different thread that it's being raised you must be careful not to change the state of objects that are defined in another thread which will cause a cross thread exception to be thrown. To avoid this you can either use an Invoke method on the object that you want to change its state to make sure that the change is happening in the same thread that the event has been raised or in case that you are dealing with a Windows Form you can use a BackgourndWorker to do things in a parallel thread nice and easy.

Press Ctrl+Shift and double-click a shortcut to run as an elevated process.

Works from the start menu as well.

i've had this problem in tell i recive an email from google telling me that someone try to login to your account is it you and i answer yes then it start workin so if this is the case for you look in your email and allow the server

I found Passing Arrays/DataTables into Stored Procedures which might give you another idea on how you might go solving your problem.

The link suggests to use an Image type parameter to pass into the stored procedure. Then in the stored procedure, the image is transformed into a table variable containing the original data.

Maybe there is a way this can be used with a temporary table.

Above answer is useful but, I found code which helps you to download text file directly on button click. In this code you can also change filename as you wish. It's pure javascript function with HTML5. Works for me!

function saveTextAsFile()
{
    var textToWrite = document.getElementById("inputTextToSave").value;
    var textFileAsBlob = new Blob([textToWrite], {type:'text/plain'});
    var fileNameToSaveAs = document.getElementById("inputFileNameToSaveAs").value;
      var downloadLink = document.createElement("a");
    downloadLink.download = fileNameToSaveAs;
    downloadLink.innerHTML = "Download File";
    if (window.webkitURL != null)
    {
        // Chrome allows the link to be clicked
        // without actually adding it to the DOM.
        downloadLink.href = window.webkitURL.createObjectURL(textFileAsBlob);
    }
    else
    {
        // Firefox requires the link to be added to the DOM
        // before it can be clicked.
        downloadLink.href = window.URL.createObjectURL(textFileAsBlob);
        downloadLink.onclick = destroyClickedElement;
        downloadLink.style.display = "none";
        document.body.appendChild(downloadLink);
    }

    downloadLink.click();
}

Finally found a solution with a docker-compose method. Since docker-compose file format 2.1 you can define healthchecks.

I did it in a example project you need to install at least docker 1.12.0+. I also needed to extend the rabbitmq-management Dockerfile, because curl isn't installed on the official image.

Now I test if the management page of the rabbitmq-container is available. If curl finishes with exitcode 0 the container app (python pika) will be started and publish a message to hello queue. Its now working (output).

docker-compose (version 2.1):

version: '2.1'

services:
  app:
    build: app/.
    depends_on:
      rabbit:
        condition: service_healthy
    links: 
        - rabbit

  rabbit:
    build: rabbitmq/.
    ports: 
        - "15672:15672"
        - "5672:5672"
    healthcheck:
        test: ["CMD", "curl", "-f", "http://localhost:15672"]
        interval: 30s
        timeout: 10s
        retries: 5

output:

rabbit_1  | =INFO REPORT==== 25-Jan-2017::14:44:21 ===
rabbit_1  | closing AMQP connection <0.718.0> (172.18.0.3:36590 -> 172.18.0.2:5672)
app_1     |  [x] Sent 'Hello World!'
healthcheckcompose_app_1 exited with code 0

Dockerfile (rabbitmq + curl):

FROM rabbitmq:3-management
RUN apt-get update
RUN apt-get install -y curl 
EXPOSE 4369 5671 5672 25672 15671 15672

Version 3 no longer supports the condition form of depends_on. So i moved from depends_on to restart on-failure. Now my app container will restart 2-3 times until it is working, but it is still a docker-compose feature without overwriting the entrypoint.

docker-compose (version 3):

version: "3"

services:

  rabbitmq: # login guest:guest
    image: rabbitmq:management
    ports:
    - "4369:4369"
    - "5671:5671"
    - "5672:5672"
    - "25672:25672"
    - "15671:15671"
    - "15672:15672"
    healthcheck:
        test: ["CMD", "curl", "-f", "http://localhost:15672"]
        interval: 30s
        timeout: 10s
        retries: 5

  app:
    build: ./app/
    environment:
      - HOSTNAMERABBIT=rabbitmq
    restart: on-failure
    depends_on:
      - rabbitmq
    links: 
        - rabbitmq

A good way to avoid loading multiple CSS files or to have inline CSS is to hand a class to the body tag depending on the version of Internet Explorer. If you only need general IE hacks, you can do something like this, but it can be extended to be version specific:

<!--[if IE ]><body class="ie"><![endif]-->
<!--[if !IE]>--><body><!--<![endif]-->

Now in your css code, you can simply do:

.ie .abc {
  position:absolute;
  left:30;
  top:-10;
}

This also keeps your CSS files valid, as you do not have to use dirty (and invalid) CSS hacks.

Besides the registry mods, you may need to change version of the .net sdk your settings set to in Visual Studio.

I was having this problem and decided to check the project debug settings.

Project => Toolbar Properties => Debug Advance Compile Options button

The Target Framework (all configurations) was set to 3.0 which is not on my system.

I changed that to 4.0, then had to restart the project and Visual Studio 2010.

The project then built without errors and ran.

You need to modify your function as:

function toggleTable()
{
   if (document.getElementById("loginTable").style.display == "table" ) {
       document.getElementById("loginTable").style.display="none";

   } else {
      document.getElementById("loginTable").style.display="table";

}

currently it is checking based on the boolean parameter, you don't have to pass the parameter with your function.

You need to modify your anchor tag as:

<a id="loginLink" onclick="toggleTable();" href="#">Login</a>

str.split(' ').join('§ §').split('§');

In a previous project I found that changing from *-imports to specific imports reduced compilation time by half (from about 10 minutes to about 5 minutes). The *-import makes the compiler search each of the packages listed for a class matching the one you used. While this time can be small, it adds up for large projects.

A side affect of the *-import was that developers would copy and paste common import lines rather than think about what they needed.

Try using

DateTime.ParseExact(
    txtPaymentSummaryBeginDate.Text.Trim(),
    "MM/dd/yyyy", 
    System.Globalization.CultureInfo.InvariantCulture
);

It throws an exception if the input string is not in proper format, so in the catch section you can return false;

To expand upon Mr. Eels comment, you can do it like this:

    File file = new File("C:\\A.txt");
    FileWriter writer;
    try {
        writer = new FileWriter(file, true);
        PrintWriter printer = new PrintWriter(writer);
        printer.append("Sue");
        printer.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

Don't say we ain't good to ya!

If you are using Hibernate as a JPA implementation and you are not using Maven/Gradle, the easier way is to download whole bundle instead of jar file one by one.

Go http://hibernate.org/orm/downloads/ and download the latest library, extract the jar from the required folder.

I also underwent the same issue as Maven doesn't create the settings.xml file under .m2 folder. What I did was the following and it works smoothly without any issues.

Go to the location where you maven was unzipped.

Direct to following path,

\apache-maven-3.0.4\conf\ and copy the settings.xml file and paste it inside your .m2 folder.

Now create a maven project.

If you are using NodeJS, you can use the build-in util function:

import * as util from "util";
util.format('My string: %s', 'foo');

Document can be found here: https://nodejs.org/api/util.html#util_util_format_format_args

The easiest would be using a foreach:

foreach(GridViewRow row in GridView2.Rows)
{
    // here you'll get all rows with RowType=DataRow
    // others like Header are omitted in a foreach
}

Edit: According to your edits, you are accessing the column incorrectly, you should start with 0:

foreach(GridViewRow row in GridView2.Rows)
{
    for(int i = 0; i < GridView2.Columns.Count; i++)
    {
        String header = GridView2.Columns[i].HeaderText;
        String cellText = row.Cells[i].Text;
    }
}

I had copy pasted my inline js from some other .php project, inside that block of code there was some php code outputting some value, now since the variable wasn't defined in my new file, it was producing the typical php undefined warning/error, and because of that the js code was being messed up, and wasn't responding to any event, even alert("xyz"); would fail silently!! Although the erronous line was way near the end of the file, still the js would just die that too,

without any errors!!! >:(

Now one thing confusing is that debugger console/output gave no hint/error/warning whatsoever, the js was dying silently.

So try checking if you have php inline coded with the js, and see if it is outputting any error. Once removed/sorted your js should work fine.

Use ThisWorkbook which will refer to the original workbook which holds the code.

Alternatively at code start

Dim Wb As Workbook
Set Wb = ActiveWorkbook

sample code that activates all open books before returning to ThisWorkbook

Sub Test()
Dim Wb As Workbook
Dim Wb2 As Workbook
Set Wb = ThisWorkbook
For Each Wb2 In Application.Workbooks
    Wb2.Activate
Next
Wb.Activate
End Sub

You can also use set for this, which avoids the overhead of [.data.table in loops:

dt <- data.table( a=letters, b=LETTERS, c=seq(26), d=letters, e=letters )
set( dt, j=c(1L,3L,5L), value=NULL )
> dt[1:5]
   b d
1: A a
2: B b
3: C c
4: D d
5: E e

If you want to do it by column name, which(colnames(dt) %in% c("a","c","e")) should work for j.

Here's a list of keycodes that includes a way to look them up interactively.

It's python source parser failure on sum.up=False named argument as sum.up is not valid argument name (you can't use dots -- only alphanumerics and underscores in argument names).

According to the Javascript standard, String.replace isn't supposed to modify the string itself. It just returns the modified string. You can refer to the Mozilla Developer Network documentation for more info.

You can always just set the string to the modified value:

variableABC = variableABC.replace('B', 'D')

Edit: The code given above is to only replace the first occurrence.

To replace all occurrences, you could do:

 variableABC = variableABC.replace(/B/g, "D");  

To replace all occurrences and ignore casing

 variableABC = variableABC.replace(/B/gi, "D");  

There are many ways to generate license keys, but very few of those ways are truly secure. And it's a pity, because for companies, license keys have almost the same value as real cash.

Ideally, you would want your license keys to have the following properties:

1. Only your company should be able to generate license keys for your products, even if someone completely reverse engineers your products (which WILL happen, I speak from experience). Obfuscating the algorithm or hiding an encryption key within your software is really out of the question if you are serious about controlling licensing. If your product is successful, someone will make a key generator in a matter of days from release.

2. A license key should be useable on only one computer (or at least you should be able to control this very tightly)

3. A license key should be short and easy to type or dictate over the phone. You don't want every customer calling the technical support because they don't understand if the key contains a "l" or a "1". Your support department would thank you for this, and you will have lower costs in this area.

So how do you solve these challenges ?

1. The answer is simple but technically challenging: digital signatures using public key cryptography. Your license keys should be in fact signed "documents", containing some useful data, signed with your company's private key. The signatures should be part of the license key. The product should validate the license keys with the corresponding public key. This way, even if someone has full access to your product's logic, they cannot generate license keys because they don't have the private key. A license key would look like this: BASE32(CONCAT(DATA, PRIVATE_KEY_ENCRYPTED(HASH(DATA)))) The biggest challenge here is that the classical public key algorithms have large signature sizes. RSA512 has an 1024-bit signature. You don't want your license keys to have hundreds of characters. One of the most powerful approaches is to use elliptic curve cryptography (with careful implementations to avoid the existing patents). ECC keys are like 6 times shorter than RSA keys, for the same strength. You can further reduce the signature sizes using algorithms like the Schnorr digital signature algorithm (patent expired in 2008 - good :) )

2. This is achievable by product activation (Windows is a good example). Basically, for a customer with a valid license key, you need to generate some "activation data" which is a signed message embedding the computer's hardware id as the signed data. This is usually done over the internet, but only ONCE: the product sends the license key and the computer hardware id to an activation server, and the activation server sends back the signed message (which can also be made short and easy to dictate over the phone). From that moment on, the product does not check the license key at startup, but the activation data, which needs the computer to be the same in order to validate (otherwise, the DATA would be different and the digital signature would not validate). Note that the activation data checking do not require verification over the Internet: it is sufficient to verify the digital signature of the activation data with the public key already embedded in the product.

3. Well, just eliminate redundant characters like "1", "l", "0", "o" from your keys. Split the license key string into groups of characters.

See http://msdn.microsoft.com/en-us/library/ms187928.aspx

You can concatenate it:

SELECT CONVERT(VARCHAR(10), GETDATE(), 104) + ' ' + CONVERT(VARCHAR(8), GETDATE(), 108)

1. Open Notepad

2. Type in the following:

   javac *
   java Main
   

3. SaveAs Main.bat or whatever name you wish to use for the batch file

Make sure that Main.java is in the same folder along with your batch file

Double Click on the batch file to run the Main.java file

I am try to catch your point.I hope it is helpful.....

if (session.isNew()){
     title = "Welcome to my website";
     session.setAttribute(userIDKey, userID);

1. Yes
2. What do you mean by the same? It will be re-executed every time the method is run.
3. Yes, the .Net garbage collector uses an algorithm that starts with any global/in-scope variables, traverses them while following any reference it finds recursively, and deletes any object in memory deemed to be unreachable. see here for more detail on Garbage Collection
4. Yes, the memory from all variables declared in a method is released when the method exits as they are all unreachable. In addition, any variables that are declared but never used will be optimized out by the compiler, so in reality your Foo variable will never ever take up memory.
5. the using statement simply calls dispose on an IDisposable object when it exits, so this is equivalent to your second bullet point. Both will indicate that you are done with the object and tell the GC that you are ready to let go of it. Overwriting the only reference to the object will have a similar effect.

Because most of solutions is bit outdated I could also suggest asciitable which already available in maven (de.vandermeer:asciitable:0.3.2) and may produce very complicated configurations.

Features (by offsite):

• Text table with some flexibility for rules and content, alignment, format, padding, margins, and frames:
• add text, as often as required in many different formats (string, text provider, render provider, ST, clusters),
• removes all excessive white spaces (tabulators, extra blanks, combinations of carriage return and line feed),
• 6 different text alignments: left, right, centered, justified, justified last line left, justified last line right,
• flexible width, set for text and calculated in many different ways for rendering
• padding characters for left and right padding (configurable separately)
• padding characters for top and bottom padding (configurable separately)
• several options for drawing grids
• rules with different styles (as supported by the used grid theme: normal, light, strong, heavy)
• top/bottom/left/right margins outside a frame
• character conversion to generated text suitable for further process, e.g. for LaTeX and HTML

And usage still looks easy:

AsciiTable at = new AsciiTable();

at.addRule();
at.addRow("row 1 col 1", "row 1 col 2");
at.addRule();
at.addRow("row 2 col 1", "row 2 col 2");
at.addRule();

System.out.println(at.render()); // Finally, print the table to standard out.

B is not statistically significant. The data is not capable of drawing inferences from it. C does influence B probabilities

 df = pd.DataFrame({"A": [10,20,30,40,50], "B": [20, 30, 10, 40, 50], "C": [32, 234, 23, 23, 42523]})

 avg_c=df['C'].mean()
 sumC=df['C'].apply(lambda x: x if x<avg_c else 0).sum()
 countC=df['C'].apply(lambda x: 1 if x<avg_c else None).count()
 avg_c2=sumC/countC
 df['C']=df['C'].apply(lambda x: avg_c2 if x >avg_c else x)
 
 print(df)

 model_ols = smf.ols("A ~ B+C",data=df).fit()

 print(model_ols.summary())

 df[['B','C']].plot()
 plt.show()


 df2=pd.DataFrame()
 df2['B']=np.linspace(10,50,10)
 df2['C']=30

 df3=pd.DataFrame()
 df3['B']=np.linspace(10,50,10)
 df3['C']=100

 predB=model_ols.predict(df2)
 predC=model_ols.predict(df3)
 plt.plot(df2['B'],predB,label='predict B C=30')
 plt.plot(df3['B'],predC,label='predict B C=100')
 plt.legend()
 plt.show()

 print("A change in the probability of C affects the probability of B")

 intercept=model_ols.params.loc['Intercept']
 B_slope=model_ols.params.loc['B']
 C_slope=model_ols.params.loc['C']
 #Intercept    11.874252
 #B             0.760859
 #C            -0.060257

 print("Intercept {}\n B slope{}\n C    slope{}\n".format(intercept,B_slope,C_slope))


 #lower_conf,upper_conf=np.exp(model_ols.conf_int())
 #print(lower_conf,upper_conf)
 #print((1-(lower_conf/upper_conf))*100)

 model_cov=model_ols.cov_params()
 std_errorB = np.sqrt(model_cov.loc['B', 'B'])
 std_errorC = np.sqrt(model_cov.loc['C', 'C'])
 print('SE: ', round(std_errorB, 4),round(std_errorC, 4))
 #check for statistically significant
 print("B z value {} C z value {}".format((B_slope/std_errorB),(C_slope/std_errorC)))
 print("B feature is more statistically significant than C")


 Output:

 A change in the probability of C affects the probability of B
 Intercept 11.874251554067563
 B slope0.7608594144571961
 C slope-0.060256845997223814

 Standard Error:  0.4519 0.0793
 B z value 1.683510336937001 C z value -0.7601036314930376
 B feature is more statistically significant than C

 z>2 is statistically significant     

select v.name
from INFORMATION_SCHEMA.VIEWS iv
join sys.views v on v.name = iv.Table_Name
where iv.Table_Catalog = 'Your database name'

I use Given-When-Then concept. Take a look at this short article http://cakebaker.42dh.com/2009/05/28/given-when-then/. Article describes this concept in terms of BDD, but you can use it in TDD as well without any changes.

Seems like the symbol was Å, but since data consists of surnames that shouldn't be public, only first letter was shown and it was done by just $lastname[0], which is wrong for multibyte strings and caused the whole hassle. Changed it to mb_substr($lastname, 0, 1) - works like a charm.

# is digit prime? we will see (Coder: Chikak)

def is_prime(x):
flag = False
if x < 2:
return False
else:
for count in range(2, x):
if x % count == 0:
flag = True
break
if flag == True:
return False
return True

kieron's answer contains w3schools ref. to which nobody rely , bobince's answer gives link , which actually tells native implementation of IE ,

so here is the original documentation quoted to rightly understand what readystate represents :

The XMLHttpRequest object can be in several states. The readyState attribute must return the current state, which must be one of the following values:

UNSENT (numeric value 0)
The object has been constructed.

OPENED (numeric value 1)
The open() method has been successfully invoked. During this state request headers can be set using setRequestHeader() and the request can be made using the send() method.

HEADERS_RECEIVED (numeric value 2)
All redirects (if any) have been followed and all HTTP headers of the final response have been received. Several response members of the object are now available.

LOADING (numeric value 3)
The response entity body is being received.

DONE (numeric value 4)
The data transfer has been completed or something went wrong during the transfer (e.g. infinite redirects).

Please Read here : W3C Explaination Of ReadyState

Building on allcaps suggestion. Here is the font-awesome background method with the least amount of HTML:

<div class="wrapper"><input></div>

.wrapper {
    position: relative; 
}

input { padding-left: 20px; }

.wrapper:before {
    font-family: 'FontAwesome';
    position: absolute;
    top: 2px;
    left: 3px;
    content: "\f007";
}

For me I had to put the whole interval in single quotes not just the value of the interval.

select id,  
   title,
   created_at + interval '1 day' * claim_window as deadline from projects   

Instead of

select id,  
   title,
   created_at + interval '1' day * claim_window as deadline from projects   

Postgres Date/Time Functions

You'd need to be careful as onBlur has some caveats in IE11 (How to use relatedTarget (or equivalent) in IE?, https://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/relatedTarget).

There is, however, no way to use onFocusOut in React as far as I can tell. See the issue on their github https://github.com/facebook/react/issues/6410 if you need more information.

As of January 2020 and Xcode 11.3.1 -

• Open Xcode
• Open Xcode Preferences (Xcode->Preferences or Cmd-,)
• Click on Accounts
• At the left, click on your developer ID
• At the bottom right, click on Manage Certificates...
• In the lower left corner, click the arrow to the right of the + (plus)
• Select Apple Distribution from the menu

Xcode will automatically create an Apple Distribution certificate, install it in Keychain Access, and update Xcode's signing information

(Note: the single Apple Distribution certificate is now provided instead of the previous iOS Distribution certificate and equivalents.)

Do you want to open a shared folder in Windows Explorer? You need to use a file: link, but there are caveats:

• Internet Explorer will work if the link is a converted UNC path (file://server/share/folder/).
• Firefox will work if the link is in its own mangled form using five slashes (file://///server/share/folder) and the user has disabled the security restriction on file: links in a page served over HTTP. Thankfully IE also accepts the mangled link form.
• Opera, Safari and Chrome can not be convinced to open a file: link in a page served over HTTP.

This is the best way to clear a multi-select or list box:

 $("#drp_assign_list option[value]").remove();

I wish I had my cable handy. I know you can telnet to the emulator to change its location

$ telnet localhost 5554
Android Console: type 'help' for a list of commands
OK
geo fix -82.411629 28.054553
OK

I cannot remember if you can telnet to your device, but I think you can. I hope this helps.

You'll need adb (android debugging bridge) for this (CLI).

I needed to indent two rows to allow for a larger first word in a para. A cumbersome one-off solution is to place text in an SVG element and position this the same as an <img>. Using float and the SVG's height tag defines how many rows will be indented e.g.

<p style="color: blue; font-size: large; padding-top: 4px;">
<svg height="44" width="260" style="float:left;margin-top:-8px;"><text x="0" y="36" fill="blue" font-family="Verdana" font-size="36">Lorum Ipsum</text></svg> 
dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>

• SVG's height and width determine area blocked out.
• Y=36 is the depth to the SVG text baseline and same as font-size
• margin-top's allow for best alignment of the SVG text and para text
• Used first two words here to remind care needed for descenders

Yes it is cumbersome but it is also independent of the width of the containing div.

The above answer was to my own query to allow the first word(s) of a para to be larger and positioned over two rows. To simply indent the first two lines of a para you could replace all the SVG tags with the following single pixel img:

<img src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" style="float:left;width:260px;height:44px;" />

If you use the matplotlib object-oriented approach, this is a simple task using ax.set_xticklabels() and ax.set_yticklabels():

import matplotlib.pyplot as plt

# Create Figure and Axes instances
fig,ax = plt.subplots(1)

# Make your plot, set your axes labels
ax.plot(sim_1['t'],sim_1['V'],'k')
ax.set_ylabel('V')
ax.set_xlabel('t')

# Turn off tick labels
ax.set_yticklabels([])
ax.set_xticklabels([])

plt.show()

I like the answer of Anacrust, though, by the fact "console.log" is executed twice, I would like to do a small update for src/mylib.js:

let test = {
  foo () { return 'foo' },
  bar () { return 'bar' },
  baz () { return 'baz' }
}

export default test

All other code remains the same...

I appreciate this is part of your extensions, but I see this message in all sorts of places these days, and I hate it: how I fixed it (EDIT: this fix seems to massively speed up the browser too) was by adding a dead file

1. physically create the file it wants\ where it wants, as a blank file (EG: "popper.min.js.map")

2. put this in the blank file

   {
    "version": 1,
    "mappings": "",
    "sources": [],
    "names": [],
    "file": "popper.min.js"
   }
   

3. make sure that "file": "*******" in the content of the blank file MATCHES the name of your file ******.map (minus the word ".map")

(EDIT: I suspect you could physically add this dead file method to the addon yourself)

I was having this same issue and I thought I'd share my solution as I didn't see anyone address this problem specifically.

The problem was I wasn't using the correct path. My CSS looked like this:

@font-face {
font-family: 'sonhoregular';
src: url('fonts/vtkssonho-webfont.eot');
src: url('fonts/vtkssonho-webfont.eot?') format('embedded-opentype'),
     url('fonts/vtkssonho-webfont.woff2') format('woff2'),
     url('fonts/vtkssonho-webfont.woff') format('woff'),
     url('fonts/vtkssonho-webfont.ttf') format('truetype'),
     url('fonts/vtkssonho-webfont.svg#vtks_sonhoregular') format('svg');
font-weight: normal;
font-style: normal;

The problem with the path is that I am referring to the font from my CSS file, which is in my CSS folder. I needed to come up a level first, then into the fonts folder. This is what it looks like now, and works great.

@font-face {
font-family: 'sonhoregular';
src: url('../fonts/vtkssonho-webfont.eot');
src: url('../fonts/vtkssonho-webfont.eot?') format('embedded-opentype'),
     url('../fonts/vtkssonho-webfont.woff2') format('woff2'),
     url('../fonts/vtkssonho-webfont.woff') format('woff'),
     url('../fonts/vtkssonho-webfont.ttf') format('truetype'),
     url('../fonts/vtkssonho-webfont.svg#vtks_sonhoregular') format('svg');
font-weight: normal;
font-style: normal;

I hope this helps someone out!

http://www.codeproject.com/Articles/237501/Windows-Phone-NTP-Client is going to work well for Windows Phone .

Adding the relevant code

/// <summary>
/// Class for acquiring time via Ntp. Useful for applications in which correct world time must be used and the 
/// clock on the device isn't "trusted."
/// </summary>
public class NtpClient
{
    /// <summary>
    /// Contains the time returned from the Ntp request
    /// </summary>
    public class TimeReceivedEventArgs : EventArgs
    {
        public DateTime CurrentTime { get; internal set; }
    }

    /// <summary>
    /// Subscribe to this event to receive the time acquired by the NTP requests
    /// </summary>
    public event EventHandler<TimeReceivedEventArgs> TimeReceived;

    protected void OnTimeReceived(DateTime time)
    {
        if (TimeReceived != null)
        {
            TimeReceived(this, new TimeReceivedEventArgs() { CurrentTime = time });
        }
    }


    /// <summary>
    /// Not reallu used. I put this here so that I had a list of other NTP servers that could be used. I'll integrate this
    /// information later and will provide method to allow some one to choose an NTP server.
    /// </summary>
    public string[] NtpServerList = new string[]
    {
        "pool.ntp.org ",
        "asia.pool.ntp.org",
        "europe.pool.ntp.org",
        "north-america.pool.ntp.org",
        "oceania.pool.ntp.org",
        "south-america.pool.ntp.org",
        "time-a.nist.gov"
    };

    string _serverName;
    private Socket _socket;

    /// <summary>
    /// Constructor allowing an NTP server to be specified
    /// </summary>
    /// <param name="serverName">the name of the NTP server to be used</param>
    public NtpClient(string serverName)
    {
        _serverName = serverName;
    }


    /// <summary>
    /// 
    /// </summary>
    public NtpClient()
        : this("time-a.nist.gov")
    { }

    /// <summary>
    /// Begins the network communication required to retrieve the time from the NTP server
    /// </summary>
    public void RequestTime()
    {
        byte[] buffer = new byte[48];
        buffer[0] = 0x1B;
        for (var i = 1; i < buffer.Length; ++i)
            buffer[i] = 0;
        DnsEndPoint _endPoint = new DnsEndPoint(_serverName, 123);

        _socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        SocketAsyncEventArgs sArgsConnect = new SocketAsyncEventArgs() { RemoteEndPoint = _endPoint };
        sArgsConnect.Completed += (o, e) =>
        {
            if (e.SocketError == SocketError.Success)
            {
                SocketAsyncEventArgs sArgs = new SocketAsyncEventArgs() { RemoteEndPoint = _endPoint };
                sArgs.Completed +=
                    new EventHandler<SocketAsyncEventArgs>(sArgs_Completed);
                sArgs.SetBuffer(buffer, 0, buffer.Length);
                sArgs.UserToken = buffer;
                _socket.SendAsync(sArgs);
            }
        };
        _socket.ConnectAsync(sArgsConnect);

    }

    void sArgs_Completed(object sender, SocketAsyncEventArgs e)
    {
        if (e.SocketError == SocketError.Success)
        {
            byte[] buffer = (byte[])e.Buffer;
            SocketAsyncEventArgs sArgs = new SocketAsyncEventArgs();
            sArgs.RemoteEndPoint = e.RemoteEndPoint;

            sArgs.SetBuffer(buffer, 0, buffer.Length);
            sArgs.Completed += (o, a) =>
            {
                if (a.SocketError == SocketError.Success)
                {
                    byte[] timeData = a.Buffer;

                    ulong hTime = 0;
                    ulong lTime = 0;

                    for (var i = 40; i <= 43; ++i)
                        hTime = hTime << 8 | buffer[i];
                    for (var i = 44; i <= 47; ++i)
                        lTime = lTime << 8 | buffer[i];
                    ulong milliseconds = (hTime * 1000 + (lTime * 1000) / 0x100000000L);

                    TimeSpan timeSpan =
                        TimeSpan.FromTicks((long)milliseconds * TimeSpan.TicksPerMillisecond);
                    var currentTime = new DateTime(1900, 1, 1) + timeSpan;
                    OnTimeReceived(currentTime);

                }
            };
            _socket.ReceiveAsync(sArgs);
        }
    }
}

Usage :

public partial class MainPage : PhoneApplicationPage
{
    private NtpClient _ntpClient;
    public MainPage()
    {
        InitializeComponent();
        _ntpClient = new NtpClient();
        _ntpClient.TimeReceived += new EventHandler<NtpClient.TimeReceivedEventArgs>(_ntpClient_TimeReceived);
    }

    void _ntpClient_TimeReceived(object sender, NtpClient.TimeReceivedEventArgs e)
    {
        this.Dispatcher.BeginInvoke(() =>
                                        {
                                            txtCurrentTime.Text = e.CurrentTime.ToLongTimeString();
                                            txtSystemTime.Text = DateTime.Now.ToUniversalTime().ToLongTimeString();
                                        });
    }

    private void UpdateTimeButton_Click(object sender, RoutedEventArgs e)
    {
        _ntpClient.RequestTime();
    }
}

Yes: TIME_CREATED contains a date and a time. Use TRUNC to strip the time:

SELECT EMP_NAME, DEPT
FROM EMPLOYEE
WHERE TRUNC(TIME_CREATED) = TO_DATE('26/JAN/2011','dd/mon/yyyy')

UPDATE:
As Dave Costa points out in the comment below, this will prevent Oracle from using the index of the column TIME_CREATED if it exists. An alternative approach without this problem is this:

SELECT EMP_NAME, DEPT
FROM EMPLOYEE
WHERE TIME_CREATED >= TO_DATE('26/JAN/2011','dd/mon/yyyy') 
      AND TIME_CREATED < TO_DATE('26/JAN/2011','dd/mon/yyyy') + 1

I think this method my solve your problem:

public static void attachFragment ( int fragmentHolderLayoutId, Fragment fragment, Context context, String tag ) {


    FragmentManager manager = ( (AppCompatActivity) context ).getSupportFragmentManager ();
    FragmentTransaction ft = manager.beginTransaction ();

    if (manager.findFragmentByTag ( tag ) == null) { // No fragment in backStack with same tag..
        ft.add ( fragmentHolderLayoutId, fragment, tag );
        ft.addToBackStack ( tag );
        ft.commit ();
    }
    else {
        ft.show ( manager.findFragmentByTag ( tag ) ).commit ();
    }
}

which was originally posted in This Question

An alternative for big files is using xreadlines():

count = 0
for line in open(thefilepath).xreadlines(  ): count += 1

For Python 3 please see: What substitutes xreadlines() in Python 3?

I just wanted to add a sanity check answer. I was getting the exact same error even after installing the certificates to the right stores on my machines and having all the right security privileges for the client. Turns out I mixed up my clientCertificate and my Service Certificate. If you have tried all of the above, I would double check that you have those two straight. Once I did that, my application successfully called the web service. Again, just a sanity checker.

the below function will check the column if exist return appropriate message else it will add the column to the table.

create or replace function addcol(schemaname varchar, tablename varchar, colname varchar, coltype varchar)
returns varchar 
language 'plpgsql'
as 
$$
declare 
    col_name varchar ;
begin 
      execute 'select column_name from information_schema.columns  where  table_schema = ' ||
      quote_literal(schemaname)||' and table_name='|| quote_literal(tablename) || '   and    column_name= '|| quote_literal(colname)    
      into   col_name ;   

      raise info  ' the val : % ', col_name;
      if(col_name is null ) then 
          col_name := colname;
          execute 'alter table ' ||schemaname|| '.'|| tablename || ' add column '|| colname || '  ' || coltype; 
      else
           col_name := colname ||' Already exist';
      end if;
return col_name;
end;
$$

U can use something like this....

  function (field,value) {

         var newItemOrder= value;
          // Make sure user hasnt already added this item
        angular.forEach(arr, function(item) {
            if (newItemOrder == item.value) {
                arr.splice(arr.pop(item));

            } });

        submitFields.push({"field":field,"value":value});
    };

<system.webServer>     
<httpErrors errorMode="DetailedLocalOnly">
        <remove statusCode="404" subStatusCode="-1" />
        <error statusCode="404" prefixLanguageFilePath="" path="your page" responseMode="Redirect" />
    </httpErrors>
</system.webServer>

Here is a simple solution:

import pandas as pd
# convert the timestamp column to datetime
df['timestamp'] = pd.to_datetime(df['timestamp'])

# extract hour from the timestamp column to create an time_hour column
df['time_hour'] = df['timestamp'].dt.hour

Below are some usage of htaccess files in server:

1) AUTHORIZATION, AUTHENTICATION: .htaccess files are often used to specify the security restrictions for the particular directory, hence the filename "access". The .htaccess file is often accompanied by an .htpasswd file which stores valid usernames and their passwords.

2) CUSTOMIZED ERROR RESPONSES: Changing the page that is shown when a server-side error occurs, for example HTTP 404 Not Found. Example : ErrorDocument 404 /notfound.html

3) REWRITING URLS: Servers often use .htaccess to rewrite "ugly" URLs to shorter and prettier ones.

4) CACHE CONTROL: .htaccess files allow a server to control User agent caching used by web browsers to reduce bandwidth usage, server load, and perceived lag.

More info : http://en.wikipedia.org/wiki/Htaccess

Private Sub YourWebPage_PreRenderComplete(sender As Object, e As EventArgs) Handles Me.PreRenderComplete

     If Not IsPostBack Then
     DropDownList1.Items.Insert(0, "Select")
     End If

End Sub

You can Simply use

finish();
startActivity(getIntent());

to refresh an Activity from within itself.

One more option is to ask MySQL for the query plan. This tells you two things:

• Whether there are any syntax errors in the query, if so the query plan command itself will fail
• How MySQL is planning to execute the query, e.g. what indexes it will use

In MySQL and most SQL databases the query plan command is describe, so you would do:

describe update ...;

You can use @Bean to make an existing third-party class available to your Spring framework application context.

@Bean
public ViewResolver viewResolver() {

    InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();

    viewResolver.setPrefix("/WEB-INF/view/");
    viewResolver.setSuffix(".jsp");

    return viewResolver;
}

By using the @Bean annotation, you can wrap a third-party class (it may not have @Component and it may not use Spring), as a Spring bean. And then once it is wrapped using @Bean, it is as a singleton object and available in your Spring framework application context. You can now easily share/reuse this bean in your app using dependency injection and @Autowired.

So think of the @Bean annotation is a wrapper/adapter for third-party classes. You want to make the third-party classes available to your Spring framework application context.

By using @Bean in the code above, I'm explicitly declare a single bean because inside of the method, I'm explicitly creating the object using the new keyword. I'm also manually calling setter methods of the given class. So I can change the value of the prefix field. So this manual work is referred to as explicit creation. If I use the @Component for the same class, the bean registered in the Spring container will have default value for the prefix field.

On the other hand, when we annotate a class with @Component, no need for us to manually use the new keyword. It is handled automatically by Spring.

The many well-written existing answers cover the question well, but I'll mention, in some detail, an addition that I believe is worth covering.

The willSet and didSet property observers can be used to call delegates, e.g., for class properties that are only ever updated by user interaction, but where you want to avoid calling the delegate at object initialization.

I'll cite Klaas up-voted comment to the accepted answer:

willSet and didSet observers are not called when a property is first initialized. They are only called when the property’s value is set outside of an initialization context.

This is a quite neat as it means e.g. the didSet property is a good choice of launch point for delegate callbacks & functions, for your own custom classes.

As an example, consider some custom user control object, with some key property value (e.g. position in rating control), implemented as a subclass of UIView:

// CustomUserControl.swift
protocol CustomUserControlDelegate {
    func didChangeValue(value: Int)
    // func didChangeValue(newValue: Int, oldValue: Int)
    // func didChangeValue(customUserControl: CustomUserControl)
    // ... other more sophisticated delegate functions
}

class CustomUserControl: UIView {

    // Properties
    // ...
    private var value = 0 {
        didSet {
            // Possibly do something ...

            // Call delegate.
            delegate?.didChangeValue(value)
            // delegate?.didChangeValue(value, oldValue: oldValue)
            // delegate?.didChangeValue(self)
        }
    }

    var delegate: CustomUserControlDelegate?

    // Initialization
    required init?(...) { 
        // Initialise something ...

        // E.g. 'value = 1' would not call didSet at this point
    }

    // ... some methods/actions associated with your user control.
}

After which your delegate functions can be used in, say, some view controller to observe key changes in the model for CustomViewController, much like you'd use the inherent delegate functions of the UITextFieldDelegate for UITextField objects (e.g. textFieldDidEndEditing(...)).

For this simple example, use a delegate callback from the didSet of the class property value to tell a view controller that one of it's outlets have had associated model update:

// ViewController.swift
Import UIKit
// ...

class ViewController: UIViewController, CustomUserControlDelegate {

    // Properties
    // ...
    @IBOutlet weak var customUserControl: CustomUserControl!

    override func viewDidLoad() {
        super.viewDidLoad()
        // ...

        // Custom user control, handle through delegate callbacks.
        customUserControl = self
    }

    // ...

    // CustomUserControlDelegate
    func didChangeValue(value: Int) {
        // do some stuff with 'value' ...
    }

    // func didChangeValue(newValue: Int, oldValue: Int) {
        // do some stuff with new as well as old 'value' ...
        // custom transitions? :)
    //}

    //func didChangeValue(customUserControl: CustomUserControl) {
    //    // Do more advanced stuff ...
    //}
}

Here, the value property has been encapsulated, but generally: in situations like these, be careful not to update the value property of the customUserControl object in the scope of the associated delegate function (here: didChangeValue()) in the view controller, or you'll end up with infinite recursion.

Try this:

return Redirect("http://www.website.com");

It must be synchronized, using an object lock, stateless, or immutable.

link: http://docs.oracle.com/javase/tutorial/essential/concurrency/immutable.html

My solution, with manipulation of strings (not the fastest, but is compact):

public enum State {
    NEW,
    RUNNABLE,
    BLOCKED,
    WAITING,
    TIMED_WAITING,
    TERMINATED;

    public static String[] names() {
        String valuesStr = Arrays.toString(State.values());
        return valuesStr.substring(1, valuesStr.length()-1).replace(" ", "").split(",");
    }
}

You can actualy fake the transparency of option DOMElements with the following CSS:

CSS

option { 
    /* Whatever color  you want */
    background-color: #82caff;
}

See Demo

The option tag does not support rgba colors yet.

As for "phone numbers" you should really consider the difference between a "subscriber number" and a "dialling number" and the possible formatting options of them.

A subscriber number is generally defined in the national numbering plans. The question itself shows a relation to a national view by mentioning "area code" which a lot of nations don't have. ITU has assembled an overview of the world's numbering plans publishing recommendation E.164 where the national number was found to have a maximum of 12 digits. With international direct distance calling (DDD) defined by a country code of 1 to 3 digits they added that up to 15 digits ... without formatting.

The dialling number is a different thing as there are network elements that can interpret exta values in a phone number. You may think of an answering machine and a number code that sets the call diversion parameters. As it may contain another subscriber number it must be obviously longer than its base value. RFC 4715 has set aside 20 bcd-encoded bytes for "subaddressing".

If you turn to the technical limitation then it gets even more as the subscriber number has a technical limit in the 10 bcd-encoded bytes in the 3GPP standards (like GSM) and ISDN standards (like DSS1). They have a seperate TON/NPI byte for the prefix (type of number / number plan indicator) which E.164 recommends to be written with a "+" but many number plans define it with up to 4 numbers to be dialled.

So if you want to be future proof (and many software systems run unexpectingly for a few decades) you would need to consider 24 digits for a subscriber number and 64 digits for a dialling number as the limit ... without formatting. Adding formatting may add roughly an extra character for every digit. So as a final thought it may not be a good idea to limit the phone number in the database in any way and leave shorter limits to the UX designers.

I fixed it writing the following:

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <AllowedHeader>*</AllowedHeader>
</CORSRule>
</CORSConfiguration>

Why <AllowedHeader>*</AllowedHeader> is working and <AllowedHeader>Authorization</AllowedHeader> not?

I am of the firm belief that in an Entity Relation Diagram, the entity should be reflected with a singular name, similar to a class name being singular. Once instantiated, the name reflects its instance. So with databases, the entity when made into a table (a collection of entities or records) is plural. Entity, User is made into table Users. I would agree with others who suggested maybe the name User could be improved to Employee or something more applicable to your scenario.

This then makes more sense in a SQL statement because you are selecting from a group of records and if the table name is singular, it doesn't read well.

import glob

jpgFilenamesList = glob.glob('145592*.jpg')

See glob in python documenttion

I installed the Role plugin under Jenkins-3.5, but it does not show the "Manage Roles" option under "Manage Jenkins", and when one follows the security install page from the wiki, all users are locked out instantly. I had to manually shutdown Jenkins on the server, restore the correct configuration settings (/me is happy to do proper backups) and restart Jenkins.

I didn't have high hopes, as that plugin was last updated in 2011

I required only one instance of the vertical padding, so I inserted this line in the appropriate place to avoid adding more to the css. <div style="margin-top:5px"></div>

Mongoose uses the mongodb-native driver, which uses the custom ObjectID type. You can compare ObjectIDs with the .equals() method. With your example, results.userId.equals(AnotherMongoDocument._id). The ObjectID type also has a toString() method, if you wish to store a stringified version of the ObjectID in JSON format, or a cookie.

If you use ObjectID = require("mongodb").ObjectID (requires the mongodb-native library) you can check if results.userId is a valid identifier with results.userId instanceof ObjectID.

Etc.

Here's a one-liner using Maven:

mvn dependency:get -Dartifact=mysql:mysql-connector-java:5.1.38

Then, with default settings, it's available in:

$HOME/.m2/repository/mysql/mysql-connector-java/5.1.38/mysql-connector-java-5.1.38.jar

Just replace the version number if you need a different one.

Based on gnibbler top voted answer (Nov 20 '09 at 0:27): this class add head() and tail() method to file object.

class File(file):
    def head(self, lines_2find=1):
        self.seek(0)                            #Rewind file
        return [self.next() for x in xrange(lines_2find)]

    def tail(self, lines_2find=1):  
        self.seek(0, 2)                         #go to end of file
        bytes_in_file = self.tell()             
        lines_found, total_bytes_scanned = 0, 0
        while (lines_2find+1 > lines_found and
               bytes_in_file > total_bytes_scanned): 
            byte_block = min(1024, bytes_in_file-total_bytes_scanned)
            self.seek(-(byte_block+total_bytes_scanned), 2)
            total_bytes_scanned += byte_block
            lines_found += self.read(1024).count('\n')
        self.seek(-total_bytes_scanned, 2)
        line_list = list(self.readlines())
        return line_list[-lines_2find:]

Usage:

f = File('path/to/file', 'r')
f.head(3)
f.tail(3)

Delete the .edmx file and add it again. Especially, if you have upgraded the Entity Framework.

Just for posterity, here's the text from several external sources regarding the Excel file formats. Some of these have been mentioned in other answers to this question but without reproducing the essential content.

1. From Doug Mahugh, August 22, 2006:

...the new XLSB binary format. Like Open XML, it’s a full-fidelity file format that can store anything you can create in Excel, but the XLSB format is optimized for performance in ways that aren’t possible with a pure XML format.

The XLSB format (also sometimes referred to as BIFF12, as in “binary file format for Office 12”) uses the same Open Packaging Convention used by the Open XML formats and XPS. So it’s basically a ZIP container, and you can open it with any ZIP tool to see what’s inside. But instead of .XML parts within the package, you’ll find .BIN parts...

This article also refers to documentation about the BIN format, too lengthy to reproduce here.

2. From MSDN Archive, August 29, 2006 which in turn cites an already-missing blog post regarding the XLSB format:

Even though we’ve done a lot of work to make sure that our XML formats open quickly and efficiently, this binary format is still more efficient for Excel to open and save, and can lead to some performance improvements for workbooks that contain a lot of data, or that would require a lot of XML parsing during the Open process. (In fact, we’ve found that the new binary format is faster than the old XLS format in many cases.) Also, there is no macro-free version of this file format – all XLSB files can contain macros (VBA and XLM). In all other respects, it is functionally equivalent to the XML file format above:

File size – file size of both formats is approximately the same, since both formats are saved to disk using zip compression Architecture – both formats use the same packaging structure, and both have the same part-level structures. Feature support – both formats support exactly the same feature set Runtime performance – once loaded into memory, the file format has no effect on application/calculation speed Converters – both formats will have identical converter support

I solved this problem by removing the spaces around equal signs (=) in my .env file.

Just updated older Ubuntu versions to openJDK 11
Actually I need it for Jenkins only and it seems to work fine.

Ubuntu 12.04 (Precise):
Download from openjdk-lts (11.0.4+11-1~12.04) precise
Files:
openjdk-11-jre-headless_11.0.4+11-1~12.04_amd64.deb
openjdk-11-jre_11.0.4+11-1~12.04_amd64.deb

Ubuntu 14.04 (Trusty):
Download from openjdk-lts (11.0.5+10-2ubuntu1~14.04) trusty
Files:
openjdk-11-jre-headless_11.0.5+10-2ubuntu1_14.04_amd64.deb
openjdk-11-jre_11.0.5+10-2ubuntu1_14.04_amd64.deb

Installation
After download I installed the files with Ubuntu Software Center ("headless" first!)
Then I selected the new version with sudo update-alternatives --config java

I didn't have to change any environment variables (like JAVA_HOME) - maybe Jenkins doesn't care about them...

@see is useful for information about related methods/classes in an API. It will produce a link to the referenced method/code on the documentation. Use it when there is related code that might help the user understand how to use the API.

If you want your TextBox uneditable you should make it ReadOnly.

I had the same issue:

raise SSLError(e)
requests.exceptions.SSLError: [Errno 8] _ssl.c:504: EOF occurred in violation of protocol

I had fiddler running, I stopped fiddler capture and did not see this error. Could be because of fiddler.

Google calendar is the "native" calendar app. As far as I know, all phones come with a version of it installed, and the default SDK provides a version.

You might check out this tutorial for working with it.

I think it's best to break the answer in depth and in simple words:

__name__: Every module in Python has a special attribute called __name__. It is a built-in variable that returns the name of the module.

__main__: Like other programming languages, Python too has an execution entry point, i.e., main. '__main__' is the name of the scope in which top-level code executes. Basically you have two ways of using a Python module: Run it directly as a script, or import it. When a module is run as a script, its __name__ is set to __main__.

Thus, the value of the __name__ attribute is set to __main__ when the module is run as the main program. Otherwise the value of __name__ is set to contain the name of the module.

Java Primitive Specializations Generator supports /* with */, /* define */ and /* if */ ... /* elif */ ... /* endif */ blocks which allow to do some kind of macro generation in Java code, similar to java-comment-preprocessor mentioned in this answer.

JPSG has Maven and Gradle plugins.

Your countLines(String filename) method throws IOException.

You can't use it in a member declaration. You'll need to perform the operation in a main(String[] args) method.

Your main(String[] args) method will get the IOException thrown to it by countLines and it will need to handle or declare it.

Try this to just throw the IOException from main

public class MyClass {
  private int lineCount;
  public static void main(String[] args) throws IOException {
    lineCount = LineCounter.countLines(sFileName);
  }
}

or this to handle it and wrap it in an unchecked IllegalArgumentException:

public class MyClass {
  private int lineCount;
  private String sFileName  = "myfile";
  public static void main(String[] args) throws IOException {
    try {
      lineCount = LineCounter.countLines(sFileName);
     } catch (IOException e) {
       throw new IllegalArgumentException("Unable to load " + sFileName, e);
     }
  }
}

A simple solution to this console.log problem is to define the following at the beginning of your JS code:

if (!window.console) window.console = {};
if (!window.console.log) window.console.log = function () { };

This works for me in all browsers. This creates a dummy function for console.log when the debugger is not active. When the debugger is active, the method console.log is defined and executes normally.

To delete all the python compiled files in current directory.

find . -name "__pycache__"|xargs rm -rf
find . -name "*.pyc"|xargs rm -rf

Try creating a duplicate table, preferably a temporary table, without the unique constraint and do your bulk load into that table. Then select only the unique (DISTINCT) items from the temporary table and insert into the target table.

Using the builtin Date.parse function which accepts input in ISO8601 format and directly returns the desired integer return value:

var dates_as_int = dates.map(Date.parse);

Instead of

UPDATE your_table SET your_column = new_valid_value where your_column = '0000-00-00 00:00:00';

Use

UPDATE your_table SET your_column = new_valid_value where your_column = 0;

Python is only a language, to get GET and POST data, you need a web framework or toolkit written in Python. Django is one, as Charlie points out, the cgi and urllib standard modules are others. Also available are Turbogears, Pylons, CherryPy, web.py, mod_python, fastcgi, etc, etc.

In Django, your view functions receive a request argument which has request.GET and request.POST. Other frameworks will do it differently.

Extend LinearLayout/RelativeLayout and use it straight on the XML

package com.pkg_name ;
...imports...
public class LinearLayoutOutlined extends LinearLayout {
    Paint paint;    

    public LinearLayoutOutlined(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        setWillNotDraw(false) ;
        paint = new Paint();
    }
    public LinearLayoutOutlined(Context context, AttributeSet attrs) {
        super(context, attrs);
        // TODO Auto-generated constructor stub
        setWillNotDraw(false) ;
        paint = new Paint();
    }
    @Override
    protected void onDraw(Canvas canvas) {
        /*
        Paint fillPaint = paint;
        fillPaint.setARGB(255, 0, 255, 0);
        fillPaint.setStyle(Paint.Style.FILL);
        canvas.drawPaint(fillPaint) ;
        */

        Paint strokePaint = paint;
        strokePaint.setARGB(255, 255, 0, 0);
        strokePaint.setStyle(Paint.Style.STROKE);
        strokePaint.setStrokeWidth(2);  
        Rect r = canvas.getClipBounds() ;
        Rect outline = new Rect( 1,1,r.right-1, r.bottom-1) ;
        canvas.drawRect(outline, strokePaint) ;
    }

}

<?xml version="1.0" encoding="utf-8"?>

<com.pkg_name.LinearLayoutOutlined
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:orientation="vertical"
    android:layout_width=...
    android:layout_height=...
   >
   ... your widgets here ...

</com.pkg_name.LinearLayoutOutlined>

For Java 8 you can use the following command line to get the heap space utilization in kB:

jstat -gc <PID> | tail -n 1 | awk '{split($0,a," "); sum=a[3]+a[4]+a[6]+a[8]; print sum}'

The command basically sums up:

• S0U: Survivor space 0 utilization (kB).
• S1U: Survivor space 1 utilization (kB).
• EU: Eden space utilization (kB).
• OU: Old space utilization (kB).

You may also want to include the metaspace and the compressed class space utilization. In this case you have to add a[10] and a[12] to the awk sum.

This issue occurs because of web application security model policy that is Same Origin Policy Under the policy, a web browser permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin. That means requester must match the exact host, protocol, and port of requesting site.

We have multiple options to over come this CORS header issue.

1. Using Proxy - In this solution we will run a proxy such that when request goes through the proxy it will appear like it is some same origin. If you are using the nodeJS you can use cors-anywhere to do the proxy stuff. https://www.npmjs.com/package/cors-anywhere.

   Example:-

   var host = process.env.HOST || '0.0.0.0';
   var port = process.env.PORT || 8080;
   var cors_proxy = require('cors-anywhere');
   cors_proxy.createServer({
       originWhitelist: [], // Allow all origins
       requireHeader: ['origin', 'x-requested-with'],
       removeHeaders: ['cookie', 'cookie2']
   }).listen(port, host, function() {
       console.log('Running CORS Anywhere on ' + host + ':' + port);
   });
   

2. JSONP - JSONP is a method for sending JSON data without worrying about cross-domain issues.It does not use the XMLHttpRequest object.It uses the <script> tag instead. https://www.w3schools.com/js/js_json_jsonp.asp

3. Server Side - On server side we need to enable cross-origin requests. First we will get the Preflighted requests (OPTIONS) and we need to allow the request that is status code 200 (ok).

   Preflighted requests first send an HTTP OPTIONS request header to the resource on the other domain, in order to determine whether the actual request is safe to send. Cross-site requests are preflighted like this since they may have implications to user data. In particular, a request is preflighted if it uses methods other than GET or POST. Also, if POST is used to send request data with a Content-Type other than application/x-www-form-urlencoded, multipart/form-data, or text/plain, e.g. if the POST request sends an XML payload to the server using application/xml or text/xml, then the request is preflighted. It sets custom headers in the request (e.g. the request uses a header such as X-PINGOTHER)

   If you are using the spring just adding the bellow code will resolves the issue. Here I have disabled the csrf token that doesn't matter enable/disable according to your requirement.

   @SpringBootApplication
   public class SupplierServicesApplication {
   
       public static void main(String[] args) {
           SpringApplication.run(SupplierServicesApplication.class, args);
       }
   
       @Bean
       public WebMvcConfigurer corsConfigurer() {
           return new WebMvcConfigurerAdapter() {
               @Override
               public void addCorsMappings(CorsRegistry registry) {
                   registry.addMapping("/**").allowedOrigins("*");
               }
           };
       }
   }
   

   If you are using the spring security use below code along with above code.

   @Configuration
   @EnableWebSecurity
   public class SupplierSecurityConfig extends WebSecurityConfigurerAdapter {
   
       @Override
       protected void configure(HttpSecurity http) throws Exception {
           http.csrf().disable().authorizeRequests().antMatchers(HttpMethod.OPTIONS, "/**").permitAll().antMatchers("/**").authenticated().and()
                   .httpBasic();
       }
   
   }
   

Make sure branch "master" exists! It's not just a name apparently.

I got this error after creating a blank bare repo, pushing a branch named "dev" to it, and trying to use git log in the bare repo. Interestingly, git branch knows that dev is the only branch existing (so I think this is a git bug).

Solution: I repeated the procedure, this time having renamed "dev" to "master" on the working repo before pushing to the bare repo. Success!

Set is just an interface. In order to retain order, you have to use a specific implementation of that interface and the sub-interface SortedSet, for example TreeSet or LinkedHashSet. You can wrap your Set this way:

Set myOrderedSet = new LinkedHashSet(mySet);

This worked for me, combo of two answers from above:

• $ git rm --cached -f *.DS_Store
• $ git commit -m "filter-branch --index-filter 'git rm --cached --ignore-unmatch .DS_Store"
• $ git push origin master --force

You could also use a Map:

const dedupThings = Array.from(things.thing.reduce((m, t) => m.set(t.place, t), new Map()).values());

Full sample:

const things = new Object();

things.thing = new Array();

things.thing.push({place:"here",name:"stuff"});
things.thing.push({place:"there",name:"morestuff"});
things.thing.push({place:"there",name:"morestuff"});

const dedupThings = Array.from(things.thing.reduce((m, t) => m.set(t.place, t), new Map()).values());

console.log(JSON.stringify(dedupThings, null, 4));

Result:

[
    {
        "place": "here",
        "name": "stuff"
    },
    {
        "place": "there",
        "name": "morestuff"
    }
]

Compatibility with older browsers can be a drag, so be adviced.

If that is not a problem then go ahead. Run the snippet. Go to full page view and resize. Center will resize itself with no changes to the left or right divs.

Change left and right values to meet your requirement.

Thank you.

Hope this helps.

#container {_x000D_
  display: flex;_x000D_
}_x000D_
_x000D_
.column.left {_x000D_
  width: 100px;_x000D_
  flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.right {_x000D_
  width: 100px;_x000D_
  flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.center {_x000D_
  flex: 1;_x000D_
  text-align: center;_x000D_
}_x000D_
_x000D_
.column.left,_x000D_
.column.right {_x000D_
  background: orange;_x000D_
  text-align: center;_x000D_
}

<div id="container">_x000D_
  <div class="column left">this is left</div>_x000D_
  <div class="column center">this is center</div>_x000D_
  <div class="column right">this is right</div>_x000D_
</div>

The getFilesDir() somehow didn't work. Using a method, which returns the entire path and filename gave the desired result. Here is the code:

File file = new File(inputHandle.getImgPath(id));
boolean deleted = file.delete();

You have a couple options, you could setTimeout() or setInterval(). Here's a great article that elaborates on how to use them.

The magic is that they're built in to JavaScript, you can use them with any library.

I got the answer, I was using:

em.persist(user);

I used merge in place of persist:

em.merge(user);

But no idea, why persist didn't work. :(

The visible width of an element is width + padding + border + outline, so it seems that you are forgetting about the border on the input element. That is, to say, that the default border width for an input element on most (some?) browsers is actually calculated as 2px, not one. Hence your input is appearing as 2px wider. Try explicitly setting the border-width on the input, or making your div wider.

Can be done without the constants (like 3600000 ms is 1h)

public static Date addMinutesToDate(Date date, int minutes) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(Calendar.MINUTE, minutes);
        return calendar.getTime();
    }

public static Date addHoursToDate(Date date, int hours) {
    Calendar calendar = Calendar.getInstance();
    calendar.setTime(date);
    calendar.add(Calendar.HOUR_OF_DAY, hours);
    return calendar.getTime();
}

example of usage:

System.out.println(new Date());
System.out.println(addMinutesToDate(new Date(), 5));

Tue May 26 16:16:14 CEST 2020
Tue May 26 16:21:14 CEST 2020

You could also use the the basic structure for the PL/pgSQL CASE with anonymous code block procedure block:

DO $$ BEGIN
    CASE
        WHEN boolean-expression THEN
          statements;
        WHEN boolean-expression THEN
          statements;
        ...
        ELSE
          statements;
    END CASE;
END $$;

References:

1. http://www.postgresql.org/docs/current/static/sql-do.html
2. https://www.postgresql.org/docs/current/static/plpgsql-control-structures.html

This is a textbook case for a constructor function:

var myArray = [];

function myElement(id, value){
    this.id = id
    this.value = value
}

myArray[0] = new myElement(0,1)
myArray[1] = new myElement(2,3)
// or myArray.push(new myElement(1, 1))

I would just like to add that if the String is originally encoded using the wrong encoding it might be impossible to change it to another encoding without errors. The question does not state that the conversion here is made from wrong encoding to correct encoding but I personally stumbled to this question just because of this situation so just a heads up for others as well.

This answer in other question gives an explanation why the conversion does not always yield correct results https://stackoverflow.com/a/2623793/4702806

Check in Administration Tools\Services (or type services.msc in the console if you a service named SQL Server (SQLEXPRESS). If you do then it is installed.

From Visual Studio open Server Explorer (menu View\Server Explorer or CTRL + W, L). Right click Data Connections and choose Create New SQL Server Database. After that create tables and stuff...

If you want the Management Studio to manage the server you must download and install it from:

http://www.microsoft.com/downloads/en/details.aspx?FamilyId=C243A5AE-4BD1-4E3D-94B8-5A0F62BF7796&displaylang=en

I found my answer.

<?php
$profpic = "bg.jpg";
?>

<html>
<head>
<style type="text/css">

body {
background-image: url('<?php echo $profpic;?>');
}
</style>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Hey</title>
</head>
<body>
</body>
</html>

javadocs show that the parse method is overloaded.

Create a StringStream or InputSource using your string XML and you should be set.

I you have the char '9', it will store its ASCII code, so to get the int value, you have 2 ways

char x = '9';
int y = Character.getNumericValue(x);   //use a existing function
System.out.println(y + " " + (y + 1));  // 9  10

or

char x = '9';
int y = x - '0';                        // substract '0' code to get the difference
System.out.println(y + " " + (y + 1));  // 9  10

And it fact, this works also :

char x = 9;
System.out.println(">" + x + "<");     //>  < prints a horizontal tab
int y = (int) x;
System.out.println(y + " " + (y + 1)); //9 10

You store the 9 code, which corresponds to a horizontal tab (you can see when print as String, bu you can also use it as int as you see above

I figure out one way to make my reports converting rows to columns almost dynamic using simple querys. You can see and test it online here.

The number of columns of query is fixed but the values are dynamic and based on values of rows. You can build it So, I use one query to build the table header and another one to see the values:

SELECT distinct concat('<th>',itemname,'</th>') as column_name_table_header FROM history order by 1;

SELECT
     hostid
    ,(case when itemname = (select distinct itemname from history a order by 1 limit 0,1) then itemvalue else '' end) as col1
    ,(case when itemname = (select distinct itemname from history a order by 1 limit 1,1) then itemvalue else '' end) as col2
    ,(case when itemname = (select distinct itemname from history a order by 1 limit 2,1) then itemvalue else '' end) as col3
    ,(case when itemname = (select distinct itemname from history a order by 1 limit 3,1) then itemvalue else '' end) as col4
FROM history order by 1;

You can summarize it, too:

SELECT
     hostid
    ,sum(case when itemname = (select distinct itemname from history a order by 1 limit 0,1) then itemvalue end) as A
    ,sum(case when itemname = (select distinct itemname from history a order by 1 limit 1,1) then itemvalue end) as B
    ,sum(case when itemname = (select distinct itemname from history a order by 1 limit 2,1) then itemvalue end) as C
FROM history group by hostid order by 1;
+--------+------+------+------+
| hostid | A    | B    | C    |
+--------+------+------+------+
|      1 |   10 |    3 | NULL |
|      2 |    9 | NULL |   40 |
+--------+------+------+------+

Results of RexTester:

http://rextester.com/ZSWKS28923

For one real example of use, this report bellow show in columns the hours of departures arrivals of boat/bus with a visual schedule. You will see one additional column not used at the last col without confuse the visualization: ** ticketing system to of sell ticket online and presential

You can create user with no password in phpmyadmin and it solves the problem! Lebbar Abdelhadi,

Old post but just exit then start it again... the issue is if you are on a windows machine Ctrl p or Ctrl P are tied to print... exiting the starting the container should not hurt anything

nth-last-child sounds like it was specifically designed to solve this problem, so I doubt whether there is a more compatible alternative. Support looks pretty decent, though.

you mean something like this ?

from numpy  import array
a = array( your_list )

This will convert a time to seconds in a double format, which is more precise than an integer value:

double elapsedTimeInSeconds = TimeUnit.MILLISECONDS.convert(elapsedTime, TimeUnit.NANOSECONDS) / 1000.0;

This works for me in irb:

irb> (1..4).to_a
=> [1, 2, 3, 4]

I notice that:

irb> 1..4.to_a
(irb):1: warning: default `to_a' will be obsolete
ArgumentError: bad value for range
        from (irb):1

So perhaps you are missing the parentheses?

(I am running Ruby 1.8.6 patchlevel 114)

It seems to be working fine:

List<BigDecimal> list = Arrays.asList(new BigDecimal("24.455"), new BigDecimal("23.455"), new BigDecimal("28.455"), new BigDecimal("20.455"));
System.out.println("Unsorted list: " + list);
final List<BigDecimal> sortedList = list.stream().sorted((o1, o2) -> o1.compareTo(o2)).collect(Collectors.toList());
System.out.println("Sorted list: " + sortedList);

Example Input/Output

Unsorted list: [24.455, 23.455, 28.455, 20.455]
Sorted list: [20.455, 23.455, 24.455, 28.455]

Are you sure you are not verifying list instead of sortedList [in above example] i.e. you are storing the result of stream() in a new List object and verifying that object?

You cannot reliably get this information. The basis of several answers provided here is to examine the User-Agent header of the HTTP request. However, there is no way to know if the information in the User-Agent header is truthful. The client sending the request can write anything in that header. So its content can be spoofed, or not sent at all.

This gives capital Letters to all major words

library(lettercase)
xString = str_title_case(xString)

before_filter/before_action: means anything to be executed before any action executes.

Both are same. they are just alias for each other as their behavior is same.

can you have the forms side by side on the page, but not nested. then use CSS to make all the buttons line up pretty?

<form method="post" action="delete_processing_page">
   <input type="hidden" name="id" value="foo" />
   <input type="submit" value="delete" class="css_makes_me_pretty" />
</form>

<form method="post" action="add_edit_processing_page">
   <input type="text" name="foo1"  />
   <input type="text" name="foo2"  />
   <input type="text" name="foo3"  />
   ...
   <input type="submit" value="post/edit" class="css_makes_me_pretty" />
</form>

An array is a variable, so in that case mapfile will work

mapfile y <<'z'
abc'asdf"
$(dont-execute-this)
foo"bar"''
z

Then you can print like this

printf %s "${y[@]}"

I don't of a simple solution on the SQL promprt. Howeve there are quite a few tools like toad and PL/SQL Developer that have a GUI where a user can input the string to be searched and it will return the table/procedure/object where this is found.

var str = 'Dude, he totally said that "You Rock!"';
var var1 = str.replace(/\"/g,"\\\"");
alert(var1);

$text="abc1234567890";

// truncate to 4 chars

echo substr(str_pad($text,4),0,4);

This avoids the problem of truncating a 4 char string to 10 chars .. (i.e. source is smaller than the required)

If you're using MacPorts, the path is

/opt/local/share/java/gradle

Later than my previous answer, but may be useful anyway; while gRaphaël Charting may be an outdated alternative, a more recent and nicer option may be http://chartjs.org - still without any Flash, with a MIT license, and a recently updated GitHub.

I've been using it myself since my last answer, so now I have some web apps with one and some with the other.

If you are starting a project anew, try with Chart.js first.

I had a problem there. When I JSON encode a string with a character like "é", every browsers will return the same "é", except IE which will return "\u00e9".

Then with PHP json_decode(), it will fail if it find "é", so for Firefox, Opera, Safari and Chrome, I've to call utf8_encode() before json_decode().

Note : with my tests, IE and Firefox are using their native JSON object, others browsers are using json2.js.

It can be opened using Visual Studio 2012.Follow the below path in VS after opening the project. View->Server Explorer->

You can try this.

$(document).ready(function(){      
  alert();
     $('#rep??ortVariablesTable tbody').append( '<tr><td>lll</td><td>lll</td></tr>');
}); 

I have been using generic-pool with redis connections in my app - I highly recommend it. Its generic and I definitely know it works with mysql so I don't think you'll have any problems with it and mongo

https://github.com/coopernurse/node-pool

It is not true that quicksort is better. ALso, it depends on what you mean better, memory consumption, or speed.

In terms of memory consumption, in worst case, but quicksort can use n^2 memory (i.e. each partition is 1 to n-1), whereas merge sort uses nlogn.

The above follows in terms of speed.

Let's use the built in SqlDateTime class

new SqlDateTime(DateTime.Now).ToSqlString()

But still need to check for null values. This will throw overflow exception

new SqlDateTime(DateTime.MinValue).ToSqlString()

SqlDateTime overflow. Must be between 1/1/1753 12:00:00 AM and 12/31/9999 11:59:59 PM.

'Caret' is the word you are looking for. I do believe though, that it is part of the browsers design, and not within the grasp of css.

However, here is an interesting write up on simulating a caret change using Javascript and CSS http://www.dynamicdrive.com/forums/showthread.php?t=17450 It seems a bit hacky to me, but probably the only way to accomplish the task. The main point of the article is:

We will have a plain textarea somewhere in the screen out of the view of the viewer and when the user clicks on our "fake terminal" we will focus into the textarea and when the user starts typing we will simply append the data typed into the textarea to our "terminal" and that's that.

HERE is a demo in action

2018 update

There is a new css property caret-color which applies to the caret of an input or contenteditable area. The support is growing but not 100%, and this only affects color, not width or other types of appearance.

input{_x000D_
  caret-color: rgb(0, 200, 0);_x000D_
}

<input type="text"/>

How about..

var result = (from s in context.Shift join es in employeeshift on s.shiftid equals es.shiftid where es.empid == 57 select s)

Edit: This will give you shifts where there is an associated employeeshift (because of the join). For the "not exists" I'd do what @ArsenMkrt or @hyp suggest

I found this post, which looks a bit old, but I figured I'd update everyone on my new findings.

I am using Oracle SQL Developer 4.0.2.15 on Windows. Our database is Oracle 10g (version 10.2.0.1) running on Windows.

To make a column auto-increment in Oracle -

1. Open up the database connection in the Connections tab
2. Expand the Tables section, and right click the table that has the column you want to change to auto-increment, and select Edit...
3. Choose the Columns section, and select the column you want to auto-increment (Primary Key column)
4. Next, click the "Identity Column" section below the list of columns, and change type from None to "Column Sequence"
5. Leave the default settings (or change the names of the sequence and trigger if you'd prefer) and then click OK

Your id column (primary key) will now auto-increment, but the sequence will be starting at 1. If you need to increment the id to a certain point, you'll have to run a few alter statements against the sequence.
This post has some more details and how to overcome this.

I found the solution here

The answer from @aioobe is excellent. I just want to add another way for Java 8.

int[][] twoDim = { { 1, 2 }, { 3, 7 }, { 8, 9 }, { 4, 2 }, { 5, 3 } };

Arrays.sort(twoDim, (int[] o1, int[] o2) -> o2[0] - o1[0]);

System.out.println(Arrays.deepToString(twoDim));

For me it's intuitive and easy to remember with Java 8 syntax.

What version of WPF are you using? I tried in both 3.5 and 4.0, and Fill="#FF000000" should work fine in a in the XAML. There is another syntax, however, if it doesn't. Here's a 3.5 XAML that I tested with two different ways. Better yet would be to use a resource.

<Window x:Class="WpfApplication2.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
<Grid>
    <Rectangle Height="100" HorizontalAlignment="Left" Margin="100,12,0,0" Name="rectangle1" Stroke="Black" VerticalAlignment="Top" Width="200" Fill="#FF00AE00" />
    <Rectangle Height="100" HorizontalAlignment="Left" Margin="100,132,0,0" Name="rectangle2" Stroke="Black" VerticalAlignment="Top" Width="200" >
        <Rectangle.Fill>
            <SolidColorBrush Color="#FF00AE00" />
        </Rectangle.Fill>
    </Rectangle>
</Grid>

Check if node_modules directory exists. After a fresh clone, there will very likely be no node_modules (since these are .gitignore'd).

Solution

run npm install to ensure all deps are downloaded.

Alternative Solution

If node_modules exists, remove it with rm -rf node_modules and then run npm install.

window.open is a method; you can open new window, and can customize it. window.location.href is just a property of the current window.

All you need is to create two layouts:

1. an empty layout

2. main layout

Then write the code below in _viewStart file:

@{
   if (Request.IsAjaxRequest())
   {
      Layout = "~/Areas/Dashboard/Views/Shared/_emptyLayout.cshtml";
   }
   else
   {
      Layout = "~/Areas/Dashboard/Views/Shared/_Layout.cshtml";
   }
 }

of course, maybe it is not the best solution

When you are looking for your "local" address, you should note that each machine has not only a single network interface, and each interface could has its own local address. Which means your machine is always owning several "local" addresses.

Different "local" addresses will be automatically chosen to use when you are connecting to different endpoints. For example, when you connect to google.com, you are using an "outside" local address; but when you connect to your localhost, your local address is always localhost itself, because localhost is just a loopback.

Below is showing how to find out your local address when you are communicating with google.com:

Socket socket = new Socket();
socket.connect(new InetSocketAddress("google.com", 80));
System.out.println(socket.getLocalAddress());
socket.close();

Definitive answer: import os and use os.path. do not import os.path directly.

From the documentation of the module itself:

>>> import os
>>> help(os.path)
...
Instead of importing this module directly, import os and refer to
this module as os.path.  The "os.path" name is an alias for this
module on Posix systems; on other systems (e.g. Mac, Windows),
os.path provides the same operations in a manner specific to that
platform, and is an alias to another module (e.g. macpath, ntpath).
...

You can use this variation:

import pandas as pd
vals = {
    'name' : ['n1', 'n2', 'n3', 'n4', 'n5', 'n6', 'n7'],
    'gender' : ['m', 'f', 'f', 'f',  'f', 'c', 'c'],
    'age' : [39, 12, 27, 13, 36, 29, 10],
    'education' : ['ma', None, 'school', None, 'ba', None, None]
}
df_vals = pd.DataFrame(vals) #converting dict to dataframe

This will output(** - highlighting only desired rows):

   age education gender name
0   39        ma      m   n1 **
1   12      None      f   n2    
2   27    school      f   n3 **
3   13      None      f   n4
4   36        ba      f   n5 **
5   29      None      c   n6
6   10      None      c   n7

So to drop everything that does not have an 'education' value, use the code below:

df_vals = df_vals[~df_vals['education'].isnull()] 

('~' indicating NOT)

Result:

   age education gender name
0   39        ma      m   n1
2   27    school      f   n3
4   36        ba      f   n5

It's called spread attributes and its aim is to make the passing of props easier.

Let us imagine that you have a component that accepts N number of properties. Passing these down can be tedious and unwieldy if the number grows.

<Component x={} y={} z={} />

Thus instead you do this, wrap them up in an object and use the spread notation

var props = { x: 1, y: 1, z:1 };
<Component {...props} />

which will unpack it into the props on your component, i.e., you "never" use {... props} inside your render() function, only when you pass the props down to another component. Use your unpacked props as normal this.props.x.

Had a similar problem where we wanted to update from deprecated Http module to HttpClient in Angular 7. But the application is large and need to change res.json() in a lot of places. So I did this to have the new module with back support.

return this.http.get(this.BASE_URL + url)
      .toPromise()
      .then(data=>{
        let res = {'results': JSON.stringify(data),
        'json': ()=>{return data;}
      };
       return res; 
      })
      .catch(error => {
        return Promise.reject(error);
      });

Adding a dummy "json" named function from the central place so that all other services can still execute successfully before updating them to accommodate a new way of response handling i.e. without "json" function.

The essential idea here is to select the data you want to sum, and then sum them. This selection of data can be done in several different ways, a few of which are shown below.

Boolean indexing

Arguably the most common way to select the values is to use Boolean indexing.

With this method, you find out where column 'a' is equal to 1 and then sum the corresponding rows of column 'b'. You can use loc to handle the indexing of rows and columns:

>>> df.loc[df['a'] == 1, 'b'].sum()
15

The Boolean indexing can be extended to other columns. For example if df also contained a column 'c' and we wanted to sum the rows in 'b' where 'a' was 1 and 'c' was 2, we'd write:

df.loc[(df['a'] == 1) & (df['c'] == 2), 'b'].sum()

Query

Another way to select the data is to use query to filter the rows you're interested in, select column 'b' and then sum:

>>> df.query("a == 1")['b'].sum()
15

Again, the method can be extended to make more complicated selections of the data:

df.query("a == 1 and c == 2")['b'].sum()

Note this is a little more concise than the Boolean indexing approach.

Groupby

The alternative approach is to use groupby to split the DataFrame into parts according to the value in column 'a'. You can then sum each part and pull out the value that the 1s added up to:

>>> df.groupby('a')['b'].sum()[1]
15

This approach is likely to be slower than using Boolean indexing, but it is useful if you want check the sums for other values in column a:

>>> df.groupby('a')['b'].sum()
a
1    15
2     8

There are two problems in your code:

• the return value of scanf must be checked
• the %d conversion does not take overflows into account (blindly applying *10 + newdigit for each consecutive numeric character)

The first value you got (-104204697) is equals to 5623125698541159 modulo 2^32; it is thus the result of an overflow (if int where 64 bits wide, no overflow would happen). The next values are uninitialized (garbage from the stack) and thus unpredictable.

The code you need could be (similar to the answer of BLUEPIXY above, with the illustration how to check the return value of scanf, the number of items successfully matched):

#include <stdio.h>

int main(int argc, char *argv[]) {
    int i, j;
    short unsigned digitArray[16];
    i = 0;
    while (
        i != sizeof(digitArray) / sizeof(digitArray[0])
     && 1 == scanf("%1hu", digitArray + i)
    ) {
        i++;
    }
    for (j = 0; j != i; j++) {
        printf("%hu\n", digitArray[j]);
    }
    return 0;
}

MySQL’s generic “errno 150” message “means that a foreign key constraint was not correctly formed.” As you probably already know if you are reading this page, the generic “errno: 150” error message is really unhelpful. However:

You can get the actual error message by running SHOW ENGINE INNODB STATUS; and then looking for LATEST FOREIGN KEY ERROR in the output.

For example, this attempt to create a foreign key constraint:

CREATE TABLE t1
(id INTEGER);

CREATE TABLE t2
(t1_id INTEGER,
 CONSTRAINT FOREIGN KEY (t1_id) REFERENCES t1 (id));

fails with the error Can't create table 'test.t2' (errno: 150). That doesn’t tell anyone anything useful other than that it’s a foreign key problem. But run SHOW ENGINE INNODB STATUS; and it will say:

------------------------
LATEST FOREIGN KEY ERROR
------------------------
130811 23:36:38 Error in foreign key constraint of table test/t2:
FOREIGN KEY (t1_id) REFERENCES t1 (id)):
Cannot find an index in the referenced table where the
referenced columns appear as the first columns, or column types
in the table and the referenced table do not match for constraint.

It says that the problem is it can’t find an index. SHOW INDEX FROM t1 shows that there aren’t any indexes at all for table t1. Fix that by, say, defining a primary key on t1, and the foreign key constraint will be created successfully.

it depends what sort of t-test you want to do (one sided or two sided dependent or independent) but it should be as simple as:

from scipy.stats import ttest_ind

cat1 = my_data[my_data['Category']=='cat1']
cat2 = my_data[my_data['Category']=='cat2']

ttest_ind(cat1['values'], cat2['values'])
>>> (1.4927289925706944, 0.16970867501294376)

it returns a tuple with the t-statistic & the p-value

see here for other t-tests http://docs.scipy.org/doc/scipy/reference/stats.html

Opening the debug console in Chrome, or even looking at the html source file (after it is loaded in the browser), make sure that all the paths there are valid (i.e. when you follow a link you get to it's content, and not an error). When something is not valid, fix the path (e.g. get rid of the server specific part and make sure you only refer to files that are part of your extension through paths like /js/jquery-123-min.js).

Easy step to step for beginners like me:

1. Read the first line of /proc/stat to get total_cpu_usage1.

    sscanf(line,"%*s %llu %llu %llu %llu",&user,&nice,&system,&idle);
    total_cpu_usage1 = user + nice + system + idle;

2. Read /proc/pid/stat where pid is the PID of the process you want to know the CPU usage, like this:

    sscanf(line,
    "%*d %*s %*c %*d" //pid,command,state,ppid

    "%*d %*d %*d %*d %*u %*lu %*lu %*lu %*lu"

    "%lu %lu" //usertime,systemtime

    "%*ld %*ld %*ld %*ld %*ld %*ld %*llu"

    "%*lu", //virtual memory size in bytes
    ....)

3. Now sum usertime and systemtime and get proc_times1
4. Now wait 1 second or more
5. Do it again, and get total_cpu_usage2 and proc_times2

The formula is:

(number of processors) * (proc_times2 - proc_times1) * 100 / (float) (total_cpu_usage2 - total_cpu_usage1)

You can get the amount of CPU's from /proc/cpuinfo.

Your status-codes are also a collection, so use Contains:

var allowedStatus = new[]{ "A", "B", "C" };
var filteredOrders = orders.Order.Where(o => allowedStatus.Contains(o.StatusCode));

or in query syntax:

var filteredOrders = from order in orders.Order
                     where allowedStatus.Contains(order.StatusCode)
                     select order;

from the man page

linux$ man -S 5 crontab

   cron(8) examines cron entries once every minute.

   The time and date fields are:

          field          allowed values
          -----          --------------
          minute         0-59
          hour           0-23
          day of month   1-31
          month          1-12 (or names, see below)
          day of week    0-7 (0 or 7 is Sun, or use names)
   ...
   # run five minutes after midnight, every day
   5 0 * * *       $HOME/bin/daily.job >> $HOME/tmp/out 2>&1
   ...

It is good to note the special "nicknames" that can be used (documented in the man page), particularly "@reboot" which has no time and date alternative.

   # Run once after reboot.
   @reboot         /usr/local/sbin/run_only_once_after_reboot.sh

You can also use this trick to run your cron job multiple times per minute.

   # Run every minute at 0, 20, and 40 second intervals
   * * * * *       sleep 00; /usr/local/sbin/run_3times_per_minute.sh
   * * * * *       sleep 20; /usr/local/sbin/run_3times_per_minute.sh
   * * * * *       sleep 40; /usr/local/sbin/run_3times_per_minute.sh

To add a cron job, you can do one of three things:

1. add a command to a user's crontab, as shown above (and from the crontab, section 5, man page).

   • edit a user's crontab as root with crontab -e -u <username>
   • or edit the current user's crontab with just crontab -e
   • You can set the editor with the EDITOR environment variable
     • env EDITOR=nano crontab -e -u <username>
     • or set the value of EDITOR for your entire shell session
       1. export EDITOR=vim
       2. crontab -e
   • Make scripts executable with chmod a+x <file>

2. create a script/program as a cron job, and add it to the system's anacron /etc/cron.*ly directories

   • anacron /etc/cron.*ly directories:
     • /etc/cron.daily
     • /etc/cron.hourly
     • /etc/cron.monthly
     • /etc/cron.weekly
   • as in:
     • /etc/cron.daily/script_runs_daily.sh
     • chmod a+x /etc/cron.daily/script_runs_daily.sh -- make it executable
   • See also the anacron man page: man anacron
   • Make scripts executable with chmod a+x <file>
   • When do these cron.*ly script run?
     • For RHEL/CentOS 5.x, they are configured in /etc/crontab or /etc/anacrontab to run at a set time
     • RHEL/CentOS 6.x+ and Fedora 17+ Linux systems only define this in /etc/anacrontab, and define cron.hourly in /etc/cron.d/0hourly

3. Or, One can create system crontables in /etc/cron.d.

   • The previously described crontab syntax (with additionally providing a user to execute each job as) is put into a file, and the file is dropped into the /etc/cron.d directory.
   • These are easy to manage in system packaging (e.g. RPM packages), so may usually be application specific.
   • The syntax difference is that a user must be specified for the cron job after the time/date fields and before the command to execute.
   • The files added to /etc/cron.d do not need to be executable.
   • Here is an example job that is executed as the user someuser, and the use of /bin/bash as the shell is forced.

   File: /etc/cron.d/myapp-cron
   # use /bin/bash to run commands, no matter what /etc/passwd says
   SHELL=/bin/bash
   # Execute a nightly (11:00pm) cron job to scrub application records
   00 23 * * * someuser /opt/myapp/bin/scrubrecords.php

You can set the line size as per the width of the window and set wrap off using the following command.

set linesize 160;
set wrap off;

I have used 160 as per my preference you can set it to somewhere between 100 - 200 and setting wrap will not your data and it will display the data properly.

My MaxHeightScrollView custom view

public class MaxHeightScrollView extends ScrollView {
    private int maxHeight;

    public MaxHeightScrollView(Context context) {
        this(context, null);
    }

    public MaxHeightScrollView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public MaxHeightScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context, attrs);
    }

    private void init(Context context, AttributeSet attrs) {
        TypedArray styledAttrs =
                context.obtainStyledAttributes(attrs, R.styleable.MaxHeightScrollView);
        try {
            maxHeight = styledAttrs.getDimensionPixelSize(R.styleable.MaxHeightScrollView_mhs_maxHeight, 0);
        } finally {
            styledAttrs.recycle();
        }
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        if (maxHeight > 0) {
            heightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}

style.xml

<declare-styleable name="MaxHeightScrollView">
    <attr name="mhs_maxHeight" format="dimension" />
</declare-styleable>

Using

<....MaxHeightScrollView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:mhs_maxHeight="100dp"
    >

    ...

</....MaxHeightScrollView>

For those who fear to mess anything up in your vscode json settings this is pretty easy to follow.

1. Open "File -> Preferences -> Keyboard Shortcuts" or "Code -> Preferences -> Keyboard Shortcuts" for Mac Users

2. In the search bar type transform.

3. By default you will not have anything under Keybinding. Now double-click on Transform to Lowercase or Transform to Uppercase.

4. Press your desired combination of keys to set your keybinding. In this case if copying off of Sublime i will press ctrl+shift+u for uppercase or ctrl+shift+l for lowercase.

5. Press Enter on your keyboard to save and exit. Do same for the other option.

6. Enjoy KEYBINDING

You have to put the event handler in the $(document).ready() event:

$(document).ready(function() {
    $("#btnSubmit").click(function(){
        alert("button");
    }); 
});

You can pass thru outside the dynamic statement using User-Defined Variables

Server version: 5.6.25-log MySQL Community Server (GPL)

mysql> PREPARE stmt FROM 'select "AAAA" into @a';
Query OK, 0 rows affected (0.01 sec)
Statement prepared

mysql> EXECUTE stmt;
Query OK, 1 row affected (0.01 sec)

DEALLOCATE prepare stmt;
Query OK, 0 rows affected (0.01 sec)

mysql> select @a;
+------+
| @a   |
+------+
|AAAA  |
+------+
1 row in set (0.01 sec)

CHAR(5)

or

MEDIUMINT (5) UNSIGNED ZEROFILL

The first takes 5 bytes per zip code.

The second takes only 3 bytes per zip code. The ZEROFILL option is necessary for zip codes with leading zeros.

Ionic Android emulator error INSTALL_FAILED_OLDER_SDK

So, basically it means that the installation has failed due to having an older SDK version than the targetSdkVersion specified in your app (it's a Gradle issue). Just edit the AndroidManifest.xml file and add the following code:

<uses-sdk android:minSdkVersion="19" android:targetSdkVersion="14"/>

After days looking for the solution, that's it.

Works fine for me!

With literal syntax you can check as follows

static const NSString* kKeyToCheck = @"yourKey"
if (xyz[kKeyToCheck])
  NSLog(@"Key: %@, has Value: %@", kKeyToCheck, xyz[kKeyToCheck]);
else
 NSLog(@"Key pair do not exits for key: %@", kKeyToCheck);