If you're having this issue, and try to run bundle exec jekyll serve per this Jekyll documentation, it'll ask you to run bundle install, which should prompt you to install any missing gems, which in this case will be rake. This should resolve your issue.

You may also need to run bundle update to ensure Gemfile.lock is referencing the most up-to-date gems.

You can use Deques in python to check palindrome

def palindrome(a_string): ch_dequeu = Deque() for ch in a_string: ch_dequeu.add_rear(ch) still_ok = True while ch_dequeu.size() > 1 and still_ok: first = ch_dequeu.remove_front() last = ch_dequeu.remove_rear() if first != last: still_ok = False return still_ok

class Deque: def __init__(self): self.items = [] def is_empty(self): return self.items == [] def add_rear(self, item): self.items.insert(0, item) def add_front(self, item): self.items.append(item) def size(self): return len(self.items) def remove_front(self): return self.items.pop() def remove_rear(self): return self.items.pop(0)

IntelliJ IDEA vs WebStorm features

IntelliJ IDEA remains JetBrains' flagship product and IntelliJ IDEA provides full JavaScript support along with all other features of WebStorm via bundled or downloadable plugins. The only thing missing is the simplified project setup.

Taken from : https://confluence.jetbrains.com/display/WI/WebStorm+FAQ#WebStormFAQ-IntelliJIDEAvsWebStormfeatures

mkmf is part of the ruby1.9.1-dev package. This package contains the header files needed for extension libraries for Ruby 1.9.1. You need to install the ruby1.9.1-dev package by doing:

sudo apt-get install ruby1.9.1-dev

Then you can install Rails as per normal.

Generally it's easier to just do:

sudo apt-get install ruby-dev

Second Update

The FAQ is not available anymore.

From the documentation of shrinkwrap:

If you wish to lock down the specific bytes included in a package, for example to have 100% confidence in being able to reproduce a deployment or build, then you ought to check your dependencies into source control, or pursue some other mechanism that can verify contents rather than versions.

Shannon and Steven mentioned this before but I think, it should be part of the accepted answer.

Update

The source listed for the below recommendation has been updated. They are no longer recommending the node_modules folder be committed.

Usually, no. Allow npm to resolve dependencies for your packages.

For packages you deploy, such as websites and apps, you should use npm shrinkwrap to lock down your full dependency tree:

https://docs.npmjs.com/cli/shrinkwrap

Original Post

For reference, npm FAQ answers your question clearly:

Check node_modules into git for things you deploy, such as websites and apps. Do not check node_modules into git for libraries and modules intended to be reused. Use npm to manage dependencies in your dev environment, but not in your deployment scripts.

and for some good rationale for this, read Mikeal Rogers' post on this.

Source: https://docs.npmjs.com/misc/faq#should-i-check-my-node-modules-folder-into-git

The creation of pdf-documents with the rails-latex-gem lead to a similar problem. I solved this by modifying layouts/application.pdf.erb to

\begin{document}

<%= yield.force_encoding("UTF-8") %>


\end{document}

In this line ...

if (*message == "\0") {

... as you can see in the warning ...

warning: comparison between pointer and integer
      ('int' and 'char *')

... you are actually comparing an int with a char *, or more specifically, an int with an address to a char.

To fix this, use one of the following:

if(*message == '\0') ...
if(message[0] == '\0') ...
if(!*message) ...

On a side note, if you'd like to compare strings you should use strcmp or strncmp, found in string.h.

install the latest vmware workstation > 15.5.5 version

which has support of Hyper-V Host

With the release of VMware Workstation/Player 15.5. 5 or >, we are very excited and proud to announce support for Windows hosts with Hyper-V mode enabled! As you may know, this is a joint project from both Microsoft and VMware

https://blogs.vmware.com/workstation/2020/05/vmware-workstation-now-supports-hyper-v-mode.html

i installed the VMware.Workstation.Pro.16.1.0

and now it fixed my issue now i am using docker & vmware same time even my window Hyper-V mode is enabled

There's an ongoing effort for a PDCurses port:

http://www.mail-archive.com/[email protected]/msg00129.html

http://www.projectpluto.com/win32a.htm

Couple of Easy Alternatives

Without using HttpParams Objects

let body = {
   params : {
    'email' : emailId,
    'password' : password
   }
}

this.http.post(url, body);

Using HttpParams Objects

let body = new HttpParams({
  fromObject : {
    'email' : emailId,
    'password' : password
  }
})

this.http.post(url, body);

A double primitive in Java can never be null. It will be initialized to 0.0 if no value has been given for it (except when declaring a local double variable and not assigning a value, but this will produce a compile-time error).

More info on default primitive values here.

URLs use forward slashes (/), not backward ones (as windows). Try:

serverURLS = "https://abc.my.domain.com:55555/update";

The reason why you get the error is that the URL class can't parse the host part of the string and therefore, host is null.

Jan 2019: Jest version 23.6

For anyone looking into this question recently especially if testing using npm or yarn directly

Currently, you don't have to change the configuration options

As per Jest official website, you can do the following to generate coverage reports:

1- For npm:

You must put -- before passing the --coverage argument of Jest

npm test -- --coverage

if you try invoking the --coverage directly without the -- it won't work

2- For yarn:

You can pass the --coverage argument of jest directly

yarn test --coverage

We can set the width for ul tag then it will align center.

#header ul {
    display: block;
    margin: 0 auto;
    width: 420px;
    max-width: 100%;
}

I am having quite a lot of luck with tesseract-android-tools

Use newtonsoft like so:

using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json.Linq;

class Program
{
    static void Main()
    {
        string json = "{'results':[{'SwiftCode':'','City':'','BankName':'Deutsche    Bank','Bankkey':'10020030','Bankcountry':'DE'},{'SwiftCode':'','City':'10891    Berlin','BankName':'Commerzbank Berlin (West)','Bankkey':'10040000','Bankcountry':'DE'}]}";

        var resultObjects = AllChildren(JObject.Parse(json))
            .First(c => c.Type == JTokenType.Array && c.Path.Contains("results"))
            .Children<JObject>();

        foreach (JObject result in resultObjects) {
            foreach (JProperty property in result.Properties()) {
                // do something with the property belonging to result
            }
        }
    }

    // recursively yield all children of json
    private static IEnumerable<JToken> AllChildren(JToken json)
    {
        foreach (var c in json.Children()) {
            yield return c;
            foreach (var cc in AllChildren(c)) {
                yield return cc;
            }
        }
    }
}

For links generated in a JSP with custom tags, I had to use

<%@ page session="false" %>

in the JSP

AND

request.getSession().invalidate();

in the Struts action

Another alternative is KMP (Knuth–Morris–Pratt).

The KMP algorithm searches for a length-m substring in a length-n string in worst-case O(n+m) time, compared to a worst-case of O(n·m) for the naive algorithm, so using KMP may be reasonable if you care about worst-case time complexity.

Here's a JavaScript implementation by Project Nayuki, taken from https://www.nayuki.io/res/knuth-morris-pratt-string-matching/kmp-string-matcher.js:

// Searches for the given pattern string in the given text string using the Knuth-Morris-Pratt string matching algorithm.
// If the pattern is found, this returns the index of the start of the earliest match in 'text'. Otherwise -1 is returned.

function kmpSearch(pattern, text) {_x000D_
  if (pattern.length == 0)_x000D_
    return 0; // Immediate match_x000D_
_x000D_
  // Compute longest suffix-prefix table_x000D_
  var lsp = [0]; // Base case_x000D_
  for (var i = 1; i < pattern.length; i++) {_x000D_
    var j = lsp[i - 1]; // Start by assuming we're extending the previous LSP_x000D_
    while (j > 0 && pattern.charAt(i) != pattern.charAt(j))_x000D_
      j = lsp[j - 1];_x000D_
    if (pattern.charAt(i) == pattern.charAt(j))_x000D_
      j++;_x000D_
    lsp.push(j);_x000D_
  }_x000D_
_x000D_
  // Walk through text string_x000D_
  var j = 0; // Number of chars matched in pattern_x000D_
  for (var i = 0; i < text.length; i++) {_x000D_
    while (j > 0 && text.charAt(i) != pattern.charAt(j))_x000D_
      j = lsp[j - 1]; // Fall back in the pattern_x000D_
    if (text.charAt(i) == pattern.charAt(j)) {_x000D_
      j++; // Next char matched, increment position_x000D_
      if (j == pattern.length)_x000D_
        return i - (j - 1);_x000D_
    }_x000D_
  }_x000D_
  return -1; // Not found_x000D_
}_x000D_
_x000D_
console.log(kmpSearch('ays', 'haystack') != -1) // true_x000D_
console.log(kmpSearch('asdf', 'haystack') != -1) // false

[A1].End(xlUp)
[A1].End(xlDown)
[A1].End(xlToLeft)
[A1].End(xlToRight)

is the VBA equivalent of being in Cell A1 and pressing Ctrl + Any arrow key. It will continue to travel in that direction until it hits the last cell of data, or if you use this command to move from a cell that is the last cell of data it will travel until it hits the next cell containing data.

If you wanted to find that last "used" cell in Column A, you could go to A65536 (for example, in an XL93-97 workbook) and press Ctrl + Up to "snap" to the last used cell. Or in VBA you would write:

Range("A65536").End(xlUp) which again can be re-written as Range("A" & Rows.Count).End(xlUp) for compatibility reasons across workbooks with different numbers of rows.

Based on my observations:

$request->request->add(['variable' => 'value']); will (mostly) work in POST, PUT & DELETE methods, because there is value(s) passed, one of those is _token. Like example below.

<form action="{{ route('process', $id) }}" method="POST">
    @csrf
</form>

public function process(Request $request, $id){
    $request->request->add(['id' => $id]);
}

But [below code] won't work because there is no value(s) passed, it doesn't really add.

<a href='{{ route('process', $id) }}'>PROCESS</a>

public function process(Request $request, $id){
    $request->request->add(['id' => $id]);
}

public function process($id){
    $request = new Request(['id' => $id]);
}

Or you can use merge. This is better actually than $request->request->add(['variable' => 'value']); because can initialize, and add request values that will work for all methods (GET, POST, PUT, DELETE)

public function process(Request $request, $id){
    $request->merge(['id' => $id]);
}

Tag: laravel5.8.11

You can also use the $inject service to get whatever service you like. I find that useful if I don't know the service name ahead of time but know the service interface. For example a directive that will plug a table into an ngResource end point or a generic delete-record button which interacts with any api end point. You don't want to re-implement the table directive for every controller or data-source.

template.html

<div my-directive api-service='ServiceName'></div>

my-directive.directive.coffee

angular.module 'my.module'
  .factory 'myDirective', ($injector) ->
    directive = 
      restrict: 'A'
      link: (scope, element, attributes) ->
        scope.apiService = $injector.get(attributes.apiService)

now your 'anonymous' service is fully available. If it is ngResource for example you can then use the standard ngResource interface to get your data

For example:

scope.apiService.query((response) ->
  scope.data = response
, (errorResponse) ->
  console.log "ERROR fetching data for service: #{attributes.apiService}"
  console.log errorResponse.data
)

I have found this technique to be very useful when making elements that interact with API endpoints especially.

This code is supported in MVC4 onwards

@Html.EditorFor(model => model.userName, new { htmlAttributes = new { @class = "form-control", disabled = "disabled", @readonly = "readonly" } })

The most easy way to do it is to go to values/strings (in your resource folder)

Declare a string there:

    <string name="example_string">Line 1\Line2\Line n</string>

And in your specific xml file just call the string like

    <TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/example_string" />

Don't BULK INSERT into your real tables directly.

I would always

1. insert into a staging table dbo.Employee_Staging (without the IDENTITY column) from the CSV file
2. possibly edit / clean up / manipulate your imported data

3. and then copy the data across to the real table with a T-SQL statement like:

   INSERT INTO dbo.Employee(Name, Address) 
      SELECT Name, Address
      FROM dbo.Employee_Staging
   

In Kotlin, I am using a class DoubleButtonDialog.Java with line window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT)) as important one

class DoubleButtonDialog(context: Context) : Dialog(context, R.style.DialogTheme) {

    private var cancelableDialog: Boolean = true
    private var titleDialog: String? = null
    private var messageDialog: String? = null
    private var leftButtonDialog: String = "Yes"
    //    private var rightButtonDialog: String? = null
    private var onClickListenerDialog: OnClickListener? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
        //requestWindowFeature(android.view.Window.FEATURE_NO_TITLE)
        setCancelable(cancelableDialog)
        setContentView(R.layout.dialog_double_button)
//        val btnNegative = findViewById<Button>(R.id.btnNegative)
//        btnNegative.visibility = View.GONE
//        if (rightButtonDialog != null) {
//            btnNegative.visibility = View.VISIBLE
//            btnNegative.text = rightButtonDialog
//            btnNegative.setOnClickListener {
//                dismiss()
//                onClickListenerDialog?.onClickCancel()
//            }
//        }
        val btnPositive = findViewById<Button>(R.id.btnPositive)
        btnPositive.text = leftButtonDialog
        btnPositive.setOnClickListener {
            onClickListenerDialog?.onClick()
            dismiss()
        }
        (findViewById<TextView>(R.id.title)).text = titleDialog
        (findViewById<TextView>(R.id.message)).text = messageDialog
        super.onCreate(savedInstanceState)
    }

    constructor(
        context: Context, cancelableDialog: Boolean, titleDialog: String?,
        messageDialog: String, leftButtonDialog: String, /*rightButtonDialog: String?,*/
        onClickListenerDialog: OnClickListener
    ) : this(context) {
        this.cancelableDialog = cancelableDialog
        this.titleDialog = titleDialog
        this.messageDialog = messageDialog
        this.leftButtonDialog = leftButtonDialog
//        this.rightButtonDialog = rightButtonDialog
        this.onClickListenerDialog = onClickListenerDialog
    }
}


interface OnClickListener {
    //    fun onClickCancel()
    fun onClick()
}

In layout, we can create a dialog_double_button.xml

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_margin="@dimen/dimen_10"
        android:background="@drawable/bg_double_button"
        android:orientation="vertical"
        android:padding="@dimen/dimen_5">

        <TextView
            android:id="@+id/title"
            style="@style/TextViewStyle"
            android:layout_gravity="center_horizontal"
            android:layout_margin="@dimen/dimen_10"
            android:fontFamily="@font/campton_semi_bold"
            android:textColor="@color/red_dark4"
            android:textSize="@dimen/text_size_24"
            tools:text="@string/dial" />

        <TextView
            android:id="@+id/message"
            style="@style/TextViewStyle"
            android:layout_gravity="center_horizontal"
            android:layout_margin="@dimen/dimen_10"
            android:gravity="center"
            android:textColor="@color/semi_gray_2"
            tools:text="@string/diling_police_number" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="@dimen/dimen_10"
            android:gravity="center"
        android:orientation="horizontal"
        android:padding="@dimen/dimen_5">

        <!--<Button
            android:id="@+id/btnNegative"
            style="@style/ButtonStyle"
            android:layout_width="0dp"
            android:layout_height="@dimen/dimen_40"
            android:layout_marginEnd="@dimen/dimen_10"
            android:layout_weight=".4"
            android:text="@string/cancel" />-->

        <Button
            android:id="@+id/btnPositive"
            style="@style/ButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:backgroundTint="@color/red_dark4"
            android:fontFamily="@font/campton_semi_bold"
            android:padding="@dimen/dimen_10"
            android:text="@string/proceed"
            android:textAllCaps="false"
            android:textColor="@color/white"
            android:textSize="@dimen/text_size_20" />
    </LinearLayout>
</LinearLayout>

then use drawable.xml as

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid
        android:color="@color/white"/>
    <corners
        android:radius="@dimen/dimen_10" />
    <padding
        android:left="@dimen/dimen_10"
        android:top="@dimen/dimen_10"
        android:right="@dimen/dimen_10"
        android:bottom="@dimen/dimen_10" />
</shape>

After Commenting

          // [DataType(DataType.DateTime)] 

Use the Data Annotation Attribute:

[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "{0:dd/MM/yyyy}")]

STEP-7 of the following link may help you...

http://ilyasmamunbd.blogspot.com/2014/12/jquery-datepicker-in-aspnet-mvc-5.html

Give an ID to uniquely identify the button, lets say myBtn

// when DOM is ready
$(document).ready(function () {

     // Attach Button click event listener 
    $("#myBtn").click(function(){

         // show Modal
         $('#myModal').modal('show');
    });
});

JSFIDDLE

In your HTML you have to use value = {{ old('') }}. Without using it, you can't get the value back because what session will store in their cache.

Like for a name validation, this will be-

<input type="text" name="name" value="{{ old('name') }}" />

Now, you can get the value after submitting it if there is error with redirect.

return redirect()->back()->withInput();

As @infomaniac says, you can also use the Input class directly,

return Redirect::back()->withInput(Input::all());

Add: If you only show the specific field, then use $request->only()

return redirect()->back()->withInput($request->only('name'));

Hope, it might work in all case, thanks.

Compromise minimum solution:

| One    | Two | Three | Four    | Five  | Six 
| -
| Span <td colspan=3>triple  <td colspan=2>double

So you can omit closing </td> for speed, ?r can leave for consistency.

Result from http://markdown-here.com/livedemo.html :

Works in Jupyter Markdown.

Update:

As of 2019 year all pipes in the second line are compulsory in Jupyter Markdown.

| One    | Two | Three | Four    | Five  | Six
|-|-|-|-|-|-
| Span <td colspan=3>triple  <td colspan=2>double

minimally:

One    | Two | Three | Four    | Five  | Six
-|||||-
Span <td colspan=3>triple  <td colspan=2>double

If you are using Python 3.5 or above, you can get this done in 1 line.

import glob

# root_dir needs a trailing slash (i.e. /root/dir/)
for filename in glob.iglob(root_dir + '**/*.txt', recursive=True):
     print(filename)

As mentioned in the documentation

If recursive is true, the pattern '**' will match any files and zero or more directories and subdirectories.

If you want every file, you can use

import glob

for filename in glob.iglob(root_dir + '**/**', recursive=True):
     print(filename)

If error related to Cocoapods as follow:

library not found for -lPod-...

You need to check Other Linker Flags and remove it from there.

Extra Information: If you have an old project that uses cocoapods. And recently you needed to add the use_frameworks! to your podfile. cocoapods will not add the libraries to your Other Linker Flags anymore cause its inherited. Therefore, you may need to remove those manually from the other linker flags which they were added before using the use_frameworks!

What if you have your data in CSV format and convert it to HTML for display on the web page? You may use the http://code.google.com/p/js-tables/ plugin. Check this example http://code.google.com/p/js-tables/wiki/Table As you are already using jQuery library I have assumed you are able to add other javascript toolkit libraries.

If the data is in CSV format, you should be able to use the generic 'application/octetstream' mime type. All the 3 mime types you have tried are dependent on the software installed on the clients computer.

First get the instance of SharedPreferences using

SharedPreferences userDetails = context.getSharedPreferences("userdetails", MODE_PRIVATE);

Now to save the values in the SharedPreferences

Editor edit = userDetails.edit();
edit.putString("username", username.getText().toString().trim());
edit.putString("password", password.getText().toString().trim());
edit.apply();

Above lines will write username and password to preference

Now to to retrieve saved values from preference, you can follow below lines of code

String userName = userDetails.getString("username", "");
String password = userDetails.getString("password", "");

(NOTE: SAVING PASSWORD IN THE APP IS NOT RECOMMENDED. YOU SHOULD EITHER ENCRYPT THE PASSWORD BEFORE SAVING OR SKIP THE SAVING THE PASSWORD)

%Lf (note the capital L) is the format specifier for long doubles.

For plain doubles, either %e, %E, %f, %g or %G will do.

the best way to prevent multiple from submission is this just pass the button id in the method.

    function DisableButton() {
        document.getElementById("btnPostJob").disabled = true;
    }
    window.onbeforeunload = DisableButton; 

SetTimeout is used to make your set of code to execute after a specified time period so for your requirements its better to use setInterval because that will call your function every time at a specified time interval.

Didn't wan to mess with carbon. So here's my solution

$start = new \DateTime('now');
$start->modify('first day of this month');
$end = new \DateTime('now');
$end->modify('last day of this month');

$new_releases = Game::whereBetween('release', array($start, $end))->get();

Since all the players are numbered I would just use an ArrayList<Player>()

Something like

List<Player> players = new ArrayList<Player>();

System.out.printf("Give the number of the players ");
int number_of_players = scanner.nextInt();
scanner.nextLine(); // discard the rest of the line.

for(int k = 0;k < number_of_players; k++){
     System.out.printf("Give the name of player %d: ", k + 1);
     String name_of_player = scanner.nextLine();
     players.add(new Player(name_of_player,0)); //k=id and 0=score
}

for(Player player: players) {  
    System.out.println("Name of player in this round:" + player.getName());

Usually you make the thing you don't want duplicates of unique, and allow the database itself to refuse the insert.

Otherwise, you can use INSERT INTO, see How to avoid duplicates in INSERT INTO SELECT query in SQL Server?

You are trying to pass pointers (which you do not delete, thus leaking memory) where references are needed. You do not really need pointers here:

Complex firstComplexNumber(81, 93);
Complex secondComplexNumber(31, 19);

cout << "Numarul complex este: " << firstComplexNumber << endl;
//                                  ^^^^^^^^^^^^^^^^^^ No need to dereference now

// ...

Complex::distanta(firstComplexNumber, secondComplexNumber);

Sure.. Why not?
Abstract base classes are just a convenience to house behavior and data common to 2 or more classes in a single place for efficiency of storage and maintenance. Its an implementation detail.
Take care however that you are not using an abstract base class where you should be using an interface. Refer to Interface vs Base class

For makecert, your startInfo.FileName should be the complete path of makecert (or just makecert.exe if it's in standard path) then the Arguments would be -sk server -sky exchange -pe -n CN=localhost -ir LocalMachine -is Root -ic MyCA.cer -sr LocalMachine -ss My MyAdHocTestCert.cer now I'm bit unfamiliar with how certificate store works, but perhaps you'll need to set startInfo.WorkingDirectory if you're referring the .cer files outside the certificate store

• fill_parent will make the width or height of the element to be as large as the parent element, in other words, the container.

• wrap_content will make the width or height be as large as needed to contain the elements within it.

Click here for ANDROID DOC Reference

Even I got the same issue and my mistake was that I didn't download python MSI file. You will get it here: https://www.python.org/downloads/

Once you download the msi, run the setup and that will solve the problem. After that you can go to File->Settings->Project Settings->Project Interpreter->Python Interpreters

and select the python.exe file. (This file will be available at c:\Python34) Select the python.exe file. That's it.

Add below cd line in your shellscript this:

exec $SHELL

I had exactly this problem but all the standard solutions based on git filter-branch were extremely slow. If you have a small repository then this may not be a problem, it was for me. I wrote another git filtering program based on libgit2 which as a first step creates branches for each filtering of the primary repository and then pushes these to clean repositories as the next step. On my repository (500Mb 100000 commits) the standard git filter-branch methods took days. My program takes minutes to do the same filtering.

It has the fabulous name of git_filter and lives here:

https://github.com/slobobaby/git_filter

on GitHub.

I hope it is useful to someone.

1NF is the most basic of normal forms - each cell in a table must contain only one piece of information, and there can be no duplicate rows.

2NF and 3NF are all about being dependent on the primary key. Recall that a primary key can be made up of multiple columns. As Chris said in his response:

The data depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] (so help me Codd).

2NF

Say you have a table containing courses that are taken in a certain semester, and you have the following data:

|-----Primary Key----|               uh oh |
                                           V
CourseID | SemesterID | #Places  | Course Name  |
------------------------------------------------|
IT101    |   2009-1   | 100      | Programming  |
IT101    |   2009-2   | 100      | Programming  |
IT102    |   2009-1   | 200      | Databases    |
IT102    |   2010-1   | 150      | Databases    |
IT103    |   2009-2   | 120      | Web Design   |

This is not in 2NF, because the fourth column does not rely upon the entire key - but only a part of it. The course name is dependent on the Course's ID, but has nothing to do with which semester it's taken in. Thus, as you can see, we have duplicate information - several rows telling us that IT101 is programming, and IT102 is Databases. So we fix that by moving the course name into another table, where CourseID is the ENTIRE key.

Primary Key |

CourseID    |  Course Name |
---------------------------|
IT101       | Programming  |
IT102       | Databases    |
IT103       | Web Design   |

No redundancy!

3NF

Okay, so let's say we also add the name of the teacher of the course, and some details about them, into the RDBMS:

|-----Primary Key----|                           uh oh |
                                                       V
Course  |  Semester  |  #Places   |  TeacherID  | TeacherName  |
---------------------------------------------------------------|
IT101   |   2009-1   |  100       |  332        |  Mr Jones    |
IT101   |   2009-2   |  100       |  332        |  Mr Jones    |
IT102   |   2009-1   |  200       |  495        |  Mr Bentley  |
IT102   |   2010-1   |  150       |  332        |  Mr Jones    |
IT103   |   2009-2   |  120       |  242        |  Mrs Smith   |

Now hopefully it should be obvious that TeacherName is dependent on TeacherID - so this is not in 3NF. To fix this, we do much the same as we did in 2NF - take the TeacherName field out of this table, and put it in its own, which has TeacherID as the key.

 Primary Key |

 TeacherID   | TeacherName  |
 ---------------------------|
 332         |  Mr Jones    |
 495         |  Mr Bentley  |
 242         |  Mrs Smith   |

No redundancy!!

One important thing to remember is that if something is not in 1NF, it is not in 2NF or 3NF either. So each additional Normal Form requires everything that the lower normal forms had, plus some extra conditions, which must all be fulfilled.

In python 3 urllib2 was merged into urllib. See also another Stack Overflow question and the urllib PEP 3108.

To make Python 2 code work in Python 3:

try:
    import urllib.request as urllib2
except ImportError:
    import urllib2

It needs to be a jQuery element to use .addClass(), so it needs to be wrapped in $() like this:

function addClassByClick(button){
  $(button).addClass("active")
}

A better overall solution would be unobtrusive script, for example:

<asp:Button ID="Button" runat="server" class="clickable"/>

Then in jquery:

$(function() {                       //run when the DOM is ready
  $(".clickable").click(function() {  //use a class, since your ID gets mangled
    $(this).addClass("active");      //add the class to the clicked element
  });
});

Ok, finally found the solution.

Probably due to lack of experience with ReactJS and web development...

    var Task = React.createClass({
    render: function() {
      var percentage = this.props.children + '%';
      ....
        <div className="ui-progressbar-value ui-widget-header ui-corner-left" style={{width : percentage}}/>
      ...

I created the percentage variable outside in the render function.

You can use the count method in hbase to count the number of rows. But yes, counting rows of a large table can be slow.count 'tablename' [interval]

Return value is the number of rows.

This operation may take a LONG time (Run ‘$HADOOP_HOME/bin/hadoop jar hbase.jar rowcount’ to run a counting mapreduce job). Current count is shown every 1000 rows by default. Count interval may be optionally specified. Scan caching is enabled on count scans by default. Default cache size is 10 rows. If your rows are small in size, you may want to increase this parameter.

Examples:

hbase> count 't1'

hbase> count 't1', INTERVAL => 100000

hbase> count 't1', CACHE => 1000

hbase> count 't1', INTERVAL => 10, CACHE => 1000

The same commands also can be run on a table reference. Suppose you had a reference to table 't1', the corresponding commands would be:

hbase> t.count

hbase> t.count INTERVAL => 100000

hbase> t.count CACHE => 1000

hbase> t.count INTERVAL => 10, CACHE => 1000

Here is another approach.

class orbisius_custom_string {
    /**
     * The reverse of nl2br. Handles <br/> <br/> <br />
     * usage: orbisius_custom_string::br2nl('Your buffer goes here ...');
     * @param str $buff
     * @return str
     * @author Slavi Marinov | http://orbisius.com
     */
    public static function br2nl($buff = '') {
        $buff = preg_replace('#<br[/\s]*>#si', "\n", $buff);
        $buff = trim($buff);

        return $buff;
    }
}

try this formula in column E:

=IF( AND( ISNUMBER(D2), D2=G2), H2, "")

your error is the number test, ISNUMBER( ISMATCH(D2,G:G,0) )

you do check if ismatch is-a-number, (i.e. isNumber("true") or isNumber("false"), which is not!.

I hope you understand my explanation.

For eliminate this error for mismatch sender Id In fcm

{"multicast_id":7751536172966571167,"success":0,"failure":1,"canonical_ids":0,"results":[{"error":"MismatchSenderId"}]}

there is error occured,

1. So we required first, In FCM, register Application e.g MyDemoApplication

2. After that FCM will generate server key i.e AIzaSyB9krC8mLHzO_TtECb5qg7NDZPxeG03jHU and sender Id i.e 346252831806 these format like these.

3. After In Android Studio, our project is connect to these FCM created project i.e MyDemoApplication

4. And most important step is there required to device token or registration id. These token must created in Android Studio..

5. After that using Sender Id and API key in web API project u will be definitely getting notification

Below solution may help you.

var unmanagedDownloadcountwithfilter = from count in unmanagedDownloadCount.Where(d =>d.downloaddate >= startDate && d.downloaddate <= endDate)
group count by count.unmanagedassetregistryid into grouped
where grouped.Count() > request.Download
select new
{
   UnmanagedAssetRegistryID = grouped.Key,
   Count = grouped.Count()
};

Try using pytds, it works throughout more complexity environment than pyodbc and more easier to setup.

I made it work on Ubuntu 18.04

Ref: https://github.com/denisenkom/pytds

Example code in documentation:

import pytds
with pytds.connect('server', 'database', 'user', 'password') as conn:
    with conn.cursor() as cur:
        cur.execute("select 1")
        cur.fetchall()

Linear search also referred to as sequential search looks at each element in sequence from the start to see if the desired element is present in the data structure. When the amount of data is small, this search is fast.Its easy but work needed is in proportion to the amount of data to be searched.Doubling the number of elements will double the time to search if the desired element is not present.

Binary search is efficient for larger array. In this we check the middle element.If the value is bigger that what we are looking for, then look in the first half;otherwise,look in the second half. Repeat this until the desired item is found. The table must be sorted for binary search. It eliminates half the data at each iteration.Its logarithmic.

If we have 1000 elements to search, binary search takes about 10 steps, linear search 1000 steps.

The spec can be read as "ISO-8859-1" or "undefined". Your choice. It's known that many servers use ISO-8859-1 (like it or not) and will fail when you send something else.

For more information and a proposal to fix the situation, see http://greenbytes.de/tech/webdav/draft-reschke-basicauth-enc-latest.html

When setting the curl options for CURLOPT_CAINFO please remember to use single quotes, using double quotes will only cause another error. So your option should look like:

curl_setopt ($ch, CURLOPT_CAINFO, 'c:\wamp\www\mywebfolder\cacert.pem');

Additionally, in your php.ini file setting should be written as:(notice my double quotes)

curl.cainfo = "C:\wamp\www\mywebfolder"

I put it directly below the line that says this: extension=php_curl.dll

(For organizing purposes only, you could put it anywhere within your php.ini, i just put it close to another curl reference so when I search using keyword curl I caan find both curl references in one area.)

What is Git:

"Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency"

Git is a distributed peer-peer version control system. Each node in the network is a peer, storing entire repositories which can also act as a multi-node distributed back-ups. There is no specific concept of a central server although nodes can be head-less or 'bare', taking on a role similar to the central server in centralised version control systems.

What is GitHub:

"GitHub is a web-based Git repository hosting service, which offers all of the distributed revision control and source code management (SCM) functionality of Git as well as adding its own features."

Github provides access control and several collaboration features such as wikis, task management, and bug tracking and feature requests for every project.

You do not need GitHub to use Git.

GitHub (and any other local, remote or hosted system) can all be peers in the same distributed versioned repositories within a single project.

Github allows you to:

• Share your repositories with others.
• Access other user's repositories.
• Store remote copies of your repositories (github servers) as backup of your local copies.

I had the same issue and came across different solutions by implementing which I used to face several different issues. Finally, below is what I put some pieces from different posts together which worked for me as expected.

private void btnCompare_Click(object sender, EventArgs e)
{
    ThreadStart threadStart = new ThreadStart(Execution);
    Thread thread = new Thread(threadStart);
    thread.SetApartmentState(ApartmentState.STA);
    thread.Start();
}

Here is the Execution method that also carries invoking the PictureBox control:

private void Execution()
{
    btnCompare.Invoke((MethodInvoker)delegate { pictureBox1.Visible = true; });
    Application.DoEvents();

    // Your main code comes here . . .

    btnCompare.Invoke((MethodInvoker)delegate { pictureBox1.Visible = false; });
}

Keep in mind, the PictureBox is invisible from Properties Window or do below:

private void ComparerForm_Load(object sender, EventArgs e)
{
    pictureBox1.Visible = false;
}

All I needed was this :

SimpleDateFormat sdf = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));

SimpleDateFormat sdfLocal = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");

try {
    String d = sdf.format(new Date());
    System.out.println(d);
    System.out.println(sdfLocal.parse(d));
} catch (Exception e) {
    e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
}

Output : slightly dubious, but I want only the date to be consistent

2013.08.08 11:01:08
Thu Aug 08 11:01:08 GMT+08:00 2013

DateAndTime Reformat:

SELECT *, to_char( last_update, 'DD-MON-YYYY') as re_format from actor;

DEMO:

Dim inputString As String = "ra"
Enumerable.Range(0, arr.Length).Where(Function(x) arr(x).ToLower().Contains(inputString.ToLower()))

If someone like to delay the same function, and without external variable he can use the next script:

function MyFunction() {

    //Delaying the function execute
    if (this.timer) {
        window.clearTimeout(this.timer);
    }
    this.timer = window.setTimeout(function() {

        //Execute the function code here...

    }, 500);
}

Try:

<div style="@(Model.booleanVariable ? "display:block" : "display:none")">Some links</div>

Use the "Display" style attribute with your bool model attribute to define the div's visibility.

x86 is a family of backward-compatible instruction set architectures based on the Intel 8086 CPU and its Intel 8088 variant.

An instruction set architecture (ISA) is an abstract model of a computer. It is also referred to as architecture or computer architecture.

A realization of an ISA is called an implementation. An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.

Software that has been written for an ISA can run on different implementations of the same ISA (Exp: 32bit or 64bit). This has enabled binary compatibility between different generations of computers to be easily achieved, and the development of computer families.

Both of these developments have helped to lower the cost of computers and to increase their applicability. For these reasons, the ISA is one of the most important abstractions in computing today.

Check whether your code contains a namespace which the right most part matches your static class name.

Given the a static Bar class, defined on namespace Foo, implementing a method Jump or a property, chances are you are receiving compiler error because there is also another namespace ending on Bar. Yep, fishi stuff ;-)

If that's so, it means your using a Using Bar; and a Bar.Jump() call, therefore one of the following solutions should fit your needs:

• Fully qualify static class name with according namepace, which result on Foo.Bar.Jump() declaration. You will also need to remove Using Bar; statement
• Rename namespace Bar by a diffente name.

In my case, the foollowing compiler error occurred on a EF (Entity Framework) repository project on an Database.SetInitializer() call:

Member 'Database.SetInitializer<MyDatabaseContext>(IDatabaseInitializer<MyDatabaseContext>)' cannot be accessed with an instance reference; qualify it with a type name instead MyProject.ORM

This error arouse when I added a MyProject.ORM.Database namespace, which sufix (Database), as you might noticed, matches Database.SetInitializer class name.

In this, since I have no control on EF's Database static class and I would also like to preserve my custom namespace, I decided fully qualify EF's Database static class with its namepace System.Data.Entity, which resulted on using the following command, which compilation succeed:

System.Data.Entity.Database.SetInitializer<MyDatabaseContext>(MyMigrationStrategy)

Hope it helps

Put the name of the column begin returned from the database where "ColumnName" is. If it is a string, you can use .ToString(). If it is another type, you need to convert it using System.Convert.

SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
    string column = rdr["ColumnName"].ToString();
    int columnValue = Convert.ToInt32(rdr["ColumnName"]);
}

As per Swift 5

    // An array of 'Int' elements
    let oddNumbers = [1, 3, 5, 7, 9, 11, 13, 15]

    // An array of 'String' elements
    let streets = ["Albemarle", "Brandywine", "Chesapeake"]

    // Shortened forms are preferred
    var emptyDoubles: [Double] = []

    // The full type name is also allowed
    var emptyFloats: Array<Float> = Array()

Another way is to use TRANSLATE:

TRANSLATE (col_name, 'x'||CHR(10)||CHR(13), 'x')

The 'x' is any character that you don't want translated to null, because TRANSLATE doesn't work right if the 3rd parameter is null.

I am using Ubuntu 16.04 and for me, it worked by just using two commands:-

ionic cordova platform rm android
ionic cordova platform add [email protected]

Ctrl-Break it is more powerful than Ctrl-C

This issue happens when you reference a .NET Standard project from a .NET 4.x project: none of the .NET Standard project's nuget package references are brought in as dependencies.

To fix this, you need to ensure your .NET 4.x csproj file is pointing to current build tools (at least 14):

<Project ToolsVersion="15.0">...

The below should no longer be needed, it was fixed around VS 15.3:

There was a known bug in VS2017, specifically in NuGet 4.0.

To work around the bug, you'll need to open up the .csproj file for your .NET 4.x project and add this snippet:

<ItemGroup>
  <PackageReference Include="Legacy2CPSWorkaround" Version="1.0.0">
    <PrivateAssets>All</PrivateAssets>
  </PackageReference>
</ItemGroup>

NuGet 4.x brings with it the "package reference" -- no more packages.config -- but the old 4.x pipeline was not fully updated at the time of VS2017's launch. The above snippet seems to "wake up" the build system to correctly include package references from dependencies.

Shorter:

   Split(stringval,":")(0)

A perfect 1/3 cannot exist in CSS with full cross browser support (anything below IE9). I personally would do: (It's not the perfect solution, but it's about as good as you'll get for all browsers)

#c1, #c2 {
    width: 33%;
}

#c3 {
    width: auto;
}

Try this:

  <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:toolbar="http://schemas.android.com/apk/res-auto"
        android:id="@+id/tool_drawer"
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize"
        toolbar:navigationIcon="@drawable/ic_navigation">

    </android.support.v7.widget.Toolbar>

double m[][] declares an array of arrays, so called multidimensional array.

m[0] points to an array in the size of four, containing 0*0,1*0,2*0,3*0. Simple math shows the values are actually 0,0,0,0.

Second line is also array in the size of four, containing 0,1,2,3.

And so on...

I guess this mutiple format in you book was to show that 0*0 is row 0 column 0, 0*1 is row 0 column 1, and so on.

You can substitute in HTML entitiy:

$FileName = preg_replace("/'/", "\'", $UserInput);

To remove the left-most word, you'll need to use either RIGHT or SUBSTRING. Assuming you know how many characters are involved, that would look either of the following:

SELECT RIGHT('Hello World', 5)
SELECT SUBSTRING('Hello World', 6, 100)

If you don't know how many characters that first word has, you'll need to find out using CHARINDEX, then substitute that value back into SUBSTRING:

SELECT SUBSTRING('Hello World', CHARINDEX(' ', 'Hello World') + 1, 100)

This finds the position of the first space, then takes the remaining characters to the right.

Based on the code provided above I added support for multiple files and also uploading a stream directly without the need to have a local file.

To upload files to a specific url including some post params do the following:

RequestHelper.PostMultipart(
    "http://www.myserver.com/upload.php", 
    new Dictionary<string, object>() {
        { "testparam", "my value" },
        { "file", new FormFile() { Name = "image.jpg", ContentType = "image/jpeg", FilePath = "c:\\temp\\myniceimage.jpg" } },
        { "other_file", new FormFile() { Name = "image2.jpg", ContentType = "image/jpeg", Stream = imageDataStream } },
    });

To enhance this even more one could determine the name and mime type from the given file itself.

public class FormFile 
{
    public string Name { get; set; }

    public string ContentType { get; set; }

    public string FilePath { get; set; }

    public Stream Stream { get; set; }
}

public class RequestHelper
{

    public static string PostMultipart(string url, Dictionary<string, object> parameters) {

        string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
        byte[] boundaryBytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");

        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        request.ContentType = "multipart/form-data; boundary=" + boundary;
        request.Method = "POST";
        request.KeepAlive = true;
        request.Credentials = System.Net.CredentialCache.DefaultCredentials;

        if(parameters != null && parameters.Count > 0) {

            using(Stream requestStream = request.GetRequestStream()) {

                foreach(KeyValuePair<string, object> pair in parameters) {

                    requestStream.Write(boundaryBytes, 0, boundaryBytes.Length);
                    if(pair.Value is FormFile) {
                        FormFile file = pair.Value as FormFile;
                        string header = "Content-Disposition: form-data; name=\"" + pair.Key + "\"; filename=\"" + file.Name + "\"\r\nContent-Type: " + file.ContentType + "\r\n\r\n";
                        byte[] bytes = System.Text.Encoding.UTF8.GetBytes(header);
                        requestStream.Write(bytes, 0, bytes.Length);
                        byte[] buffer = new byte[32768];
                        int bytesRead;
                        if(file.Stream == null) {
                            // upload from file
                            using(FileStream fileStream = File.OpenRead(file.FilePath)) {
                                while((bytesRead = fileStream.Read(buffer, 0, buffer.Length)) != 0)
                                    requestStream.Write(buffer, 0, bytesRead);
                                fileStream.Close();
                            }
                        }
                        else {
                            // upload from given stream
                            while((bytesRead = file.Stream.Read(buffer, 0, buffer.Length)) != 0)
                                requestStream.Write(buffer, 0, bytesRead);
                        }
                    }
                    else {
                        string data = "Content-Disposition: form-data; name=\"" + pair.Key + "\"\r\n\r\n" + pair.Value;
                        byte[] bytes = System.Text.Encoding.UTF8.GetBytes(data);
                        requestStream.Write(bytes, 0, bytes.Length);
                    }
                }

                byte[] trailer = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "--\r\n");
                requestStream.Write(trailer, 0, trailer.Length);
                requestStream.Close();
            }
        }

        using(WebResponse response = request.GetResponse()) {
            using(Stream responseStream = response.GetResponseStream())
            using(StreamReader reader = new StreamReader(responseStream))
                return reader.ReadToEnd();
        }


    }
}

You can use the .update() method if you don't need the original d2 any more:

Update the dictionary with the key/value pairs from other, overwriting existing keys. Return None.

E.g.:

>>> d1 = {'a': 1, 'b': 2} 
>>> d2 = {'b': 1, 'c': 3}
>>> d2.update(d1)
>>> d2
{'a': 1, 'c': 3, 'b': 2}

Update:

Of course you can copy the dictionary first in order to create a new merged one. This might or might not be necessary. In case you have compound objects (objects that contain other objects, like lists or class instances) in your dictionary, copy.deepcopy should also be considered.

2020 edit

Use URLSearchParams, as this job no longer requires any kind of custom code. Browsers can do this for you with a single constructor:

const str = "1111342=Adam%20Franco&348572=Bob%20Jones";
const data = new URLSearchParams(str);
for (pair of data) console.log(pair)

yields

Array [ "1111342", "Adam Franco" ]
Array [ "348572", "Bob Jones" ]

So there is no reason to use regex for this anymore.

Original answer

If you don't want to rely on the "blind matching" that comes with running exec style matching, JavaScript does come with match-all functionality built in, but it's part of the replace function call, when using a "what to do with the capture groups" handling function:

var data = {};

var getKeyValue = function(fullPattern, group1, group2, group3) {
  data[group2] = group3;
};

mystring.replace(/(?:&|&)?([^=]+)=([^&]+)/g, getKeyValue);

done.

Instead of using the capture group handling function to actually return replacement strings (for replace handling, the first arg is the full pattern match, and subsequent args are individual capture groups) we simply take the groups 2 and 3 captures, and cache that pair.

So, rather than writing complicated parsing functions, remember that the "matchAll" function in JavaScript is simply "replace" with a replacement handler function, and much pattern matching efficiency can be had.

A simple solution that i use, works from IE8+

Give min-height:100% on html so that if content is less then still page takes full view-port height and footer sticks at bottom of page. When content increases the footer shifts down with content and keep sticking to bottom.

JS fiddle working Demo: http://jsfiddle.net/3L3h64qo/2/

Css

html{
  position:relative; 
  min-height: 100%;
}
/*Normalize html and body elements,this style is just good to have*/
html,body{
  margin:0;
  padding:0;
}
.pageContentWrapper{
  margin-bottom:100px;/* Height of footer*/
} 
.footer{
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height:100px;
    background:#ccc;
}

Html

   <html>
    <body>
        <div class="pageContentWrapper">
            <!-- All the page content goes here-->
        </div>
        <div class="footer">
        </div>
    </body>
    </html>

For iTunes 11 and above version:

open your iTunes "Side Bar" by going to View -> Show Side Bar drag the mobileprovision and ipa files to your iTunes "Apps" under LIBRARY Then click on your device. open you device Apps from DEVICES and click install for the application and wait for iTunes to sync

If you want to make an empty data frame and add contents in a loop, the following may help:

# Number of students in class
student.count <- 36

# Gather data about the students
student.age <- sample(14:17, size = student.count, replace = TRUE)
student.gender <- sample(c('male', 'female'), size = student.count, replace = TRUE)
student.marks <- sample(46:97, size = student.count, replace = TRUE)

# Create empty data frame
student.data <- data.frame()

# Populate the data frame using a for loop
for (i in 1 : student.count) {
    # Get the row data
    age <- student.age[i]
    gender <- student.gender[i]
    marks <- student.marks[i]

    # Populate the row
    new.row <- data.frame(age = age, gender = gender, marks = marks)

    # Add the row
    student.data <- rbind(student.data, new.row)
}

# Print the data frame
student.data

Hope it helps :)

We can also use the readonly only with below attributes -

readonly onclick='return false;'

This is because if we will only use the readonly then radio buttons will be editable. To avoid this situation we can use readonly with above combination. It will restrict the editing and element's values will also passed during form submission.

Since there is so much confusion about functionality of standard service accounts, I'll try to give a quick run down.

First the actual accounts:

• LocalService account (preferred)

  A limited service account that is very similar to Network Service and meant to run standard least-privileged services. However, unlike Network Service it accesses the network as an Anonymous user.

  • Name: NT AUTHORITY\LocalService
  • the account has no password (any password information you provide is ignored)
  • HKCU represents the LocalService user account
  • has minimal privileges on the local computer
  • presents anonymous credentials on the network
  • SID: S-1-5-19
  • has its own profile under the HKEY_USERS registry key (HKEY_USERS\S-1-5-19)

   

• NetworkService account

  Limited service account that is meant to run standard privileged services. This account is far more limited than Local System (or even Administrator) but still has the right to access the network as the machine (see caveat above).

  • NT AUTHORITY\NetworkService
  • the account has no password (any password information you provide is ignored)
  • HKCU represents the NetworkService user account
  • has minimal privileges on the local computer
  • presents the computer's credentials (e.g. MANGO$) to remote servers
  • SID: S-1-5-20
  • has its own profile under the HKEY_USERS registry key (HKEY_USERS\S-1-5-20)
  • If trying to schedule a task using it, enter NETWORK SERVICE into the Select User or Group dialog

   

• LocalSystem account (dangerous, don't use!)

  Completely trusted account, more so than the administrator account. There is nothing on a single box that this account cannot do, and it has the right to access the network as the machine (this requires Active Directory and granting the machine account permissions to something)

  • Name: .\LocalSystem (can also use LocalSystem or ComputerName\LocalSystem)
  • the account has no password (any password information you provide is ignored)
  • SID: S-1-5-18
  • does not have any profile of its own (HKCU represents the default user)
  • has extensive privileges on the local computer
  • presents the computer's credentials (e.g. MANGO$) to remote servers

   

Above when talking about accessing the network, this refers solely to SPNEGO (Negotiate), NTLM and Kerberos and not to any other authentication mechanism. For example, processing running as LocalService can still access the internet.

The general issue with running as a standard out of the box account is that if you modify any of the default permissions you're expanding the set of things everything running as that account can do. So if you grant DBO to a database, not only can your service running as Local Service or Network Service access that database but everything else running as those accounts can too. If every developer does this the computer will have a service account that has permissions to do practically anything (more specifically the superset of all of the different additional privileges granted to that account).

It is always preferable from a security perspective to run as your own service account that has precisely the permissions you need to do what your service does and nothing else. However, the cost of this approach is setting up your service account, and managing the password. It's a balancing act that each application needs to manage.

In your specific case, the issue that you are probably seeing is that the the DCOM or COM+ activation is limited to a given set of accounts. In Windows XP SP2, Windows Server 2003, and above the Activation permission was restricted significantly. You should use the Component Services MMC snapin to examine your specific COM object and see the activation permissions. If you're not accessing anything on the network as the machine account you should seriously consider using Local Service (not Local System which is basically the operating system).

In Windows Server 2003 you cannot run a scheduled task as

• NT_AUTHORITY\LocalService (aka the Local Service account), or
• NT AUTHORITY\NetworkService (aka the Network Service account).

That capability only was added with Task Scheduler 2.0, which only exists in Windows Vista/Windows Server 2008 and newer.

A service running as NetworkService presents the machine credentials on the network. This means that if your computer was called mango, it would present as the machine account MANGO$:

We can use $set operator to update the nested array inside object filed update the value

db.getCollection('geolocations').update( 
   {
       "_id" : ObjectId("5bd3013ac714ea4959f80115"), 
       "geolocation.country" : "United States of America"
   }, 
   { $set: 
       {
           "geolocation.$.country" : "USA"
       } 
    }, 
   false,
   true
);

Update ListView's contents by below code:

private ListView listViewBuddy;
private BuddyAdapter mBuddyAdapter;
private ArrayList<BuddyModel> buddyList = new ArrayList<BuddyModel>();

onCreate():

listViewBuddy = (ListView)findViewById(R.id.listViewBuddy);
mBuddyAdapter = new BuddyAdapter();
listViewBuddy.setAdapter(mBuddyAdapter);

onDataGet (After webservice call or from local database or otherelse):

mBuddyAdapter.setData(buddyList);
mBuddyAdapter.notifyDataSetChanged();

BaseAdapter:

private class BuddyAdapter extends BaseAdapter { 

    private ArrayList<BuddyModel> mArrayList = new ArrayList<BuddyModel>();
    private LayoutInflater mLayoutInflater= (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    private ViewHolder holder;

    public void setData(ArrayList<BuddyModel> list){
        mArrayList = list;
    }

    @Override
    public int getCount() {
        return mArrayList.size();
    }

    @Override
    public BuddyModel getItem(int position) {
        return mArrayList.get(position);
    }

    @Override
    public long getItemId(int pos) {
        return pos;
    }

    private class ViewHolder {
        private TextView txtBuddyName, txtBuddyBadge;

    }
    @SuppressLint("InflateParams")
    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = mLayoutInflater.inflate(R.layout.row_buddy, null);
            // bind views
            holder.txtBuddyName = (TextView) convertView.findViewById(R.id.txtBuddyName);
            holder.txtBuddyBadge = (TextView) convertView.findViewById(R.id.txtBuddyBadge);

            // set tag
            convertView.setTag(holder);
        } else {
            // get tag
            holder = (ViewHolder) convertView.getTag();
        }

        holder.txtBuddyName.setText(mArrayList.get(position).getFriendId());

        int badge = mArrayList.get(position).getCount();
        if(badge!=0){
            holder.txtBuddyBadge.setVisibility(View.VISIBLE);
            holder.txtBuddyBadge.setText(""+badge);
        }else{
            holder.txtBuddyBadge.setVisibility(View.GONE);
        }   

        return convertView;
    }
}

Whenever you want to Update Listview just call below two lines code:

 mBuddyAdapter.setData(Your_Updated_ArrayList);
 mBuddyAdapter.notifyDataSetChanged();

Done

str.split (" ") 
res27: Array[java.lang.String] = Array(a, +, b, -, c, *, d, /, e, <, f, >, g, >=, h, <=, i, ==, j)

You can set CustomFormat property to "dd-MM-yyyy" in design mode and use dateTimePicker1.Text property to fetch string in "dd/MM/yyyy" format irrespective of display format.

I think your questions will all be answered if you understand how Sets, and in particular HashSets work. A set is a collection of unique objects, with Java defining uniqueness in that it doesn't equal anything else (equals returns false).

The HashSet takes advantage of hashcodes to speed things up. It assumes that two objects that equal eachother will have the same hash code. However it does not assume that two objects with the same hash code mean they are equal. This is why when it detects a colliding hash code, it only compares with other objects (in your case one) in the set with the same hash code.

Missing Context file location in configuration can cause this, one approach to solve this:

• Specifying Context file location in ContextConfiguration

like:

@ContextConfiguration(locations = { "classpath:META-INF/your-spring-context.xml" })

More details

@RunWith( SpringJUnit4ClassRunner.class )
@ContextConfiguration(locations = { "classpath:META-INF/your-spring-context.xml" })
public class UserServiceTest extends AbstractJUnit4SpringContextTests {}

Reference:Thanks to @Xstian

I have put something like this in my Controller class and it worked:

IdentityUser user = await userManager.FindByNameAsync(HttpContext.User.Identity.Name);

where userManager is an instance of Microsoft.AspNetCore.Identity.UserManager class (with all weird setup that goes with it).

You are not using a .NET control for your text area. Either add runat="server" to the HTML TextArea control or use a .NET control:

Try this:

<asp:TextBox id="TextArea1" TextMode="multiline" Columns="50" Rows="5" runat="server" />

Then reference it in your codebehind:

message.Body = TextArea1.Text;

JavaScript has a RegExp object which does what you want. The String object has a match() function that will help you out.

var matches = text.match(/price\[(\d+)\]\[(\d+)\]/);
var productId = matches[1];
var shopId    = matches[2];

As a complementary, for those who might meet the same issue as mine, I'm using $.ajax to post form data to server and I also got the 400 error at first.

Assume I have a javascript variable,

var formData = {
    "name":"Gearon",
    "hobby":"Be different"
    }; 

Do not use variable formData directly as the value of key data like below:

$.ajax({
    type: "post",
    dataType: "json",
    url: "http://localhost/user/add",
    contentType: "application/json",
    data: formData,
    success: function(data, textStatus){
        alert("Data: " + data + "\nStatus: " + status); 
    }
});

Instead, use JSON.stringify to encapsulate the formData as below:

$.ajax({
    type: "post",
    dataType: "json",
    url: "http://localhost/user/add",
    contentType: "application/json",
    data: JSON.stringify(formData),
    success: function(data, textStatus){
        alert("Data: " + data + "\nStatus: " + status); 
    }
});

Anyway, as others have illustrated, the error is because the server could not recognize the request cause malformed syntax, I'm just raising a instance at practice. Hope it would be helpful to someone.

Had a similar issue, only my web app was fine and it was SQLPlus that was giving me issues connecting, and the ORA-12154 could not resolve the connect identifier specified error. I had 11g and 12 Oracle clients installed. My environment variables were all set to point at my 12 instance:

• ORACLE_HOME = C:\oracle\product\12
• PATH = C:\oracle\product\12\bin;....
• TNS_ADMIN = C:\oracle\product\12\network\admin

There is also a registry entry required at HKLM\Software\Oracle\KEY_OraClient12Home1, a string entry of TNS_ADMIN with the same path as the environment variable.

I have a tnsnames.ora at both C:\oracle\product\11\network\admin and C:\oracle\product\12\network\admin. As far as I know, both my web app and the 12 SQLPlus client I was using should have been using all 12 version variables.

My troubleshooting steps:

• Change all environmental variables above from 12 to 11.
• Connect with 11g's SQLPlus (worked!)
• Change all environmental variables above back from 11 to 12.
• Connect with 12's SQLPlus again (worked!)

So I don't really know what caused 12's SQLPlus to stop connecting, but this kind of reset may work for someone, so thought I'd document it here.

try to do this in the behind code

   public diagboxclass()
   {
         List<object> list = new List<object>();
         list = GetObjectList();
         Imported.ItemsSource = null;
         Imported.ItemsSource = list;
   }

Also be sure your list is effectively populated and as mentioned by Blindmeis, never use words that already are given a function in c#.

Copy To OS Clipboard

Select text in visual mode, press "*y

Paste From OS Clipboard

Press "*p

git log --no-walk --tags --pretty="%h %d %s" --decorate=full

This version will print the commit message as well:

 $ git log --no-walk --tags --pretty="%h %d %s" --decorate=full
3713f3f  (tag: refs/tags/1.0.0, tag: refs/tags/0.6.0, refs/remotes/origin/master, refs/heads/master) SP-144/ISP-177: Updating the package.json with 0.6.0 version and the README.md.
00a3762  (tag: refs/tags/0.5.0) ISP-144/ISP-205: Update logger to save files with optional port number if defined/passed: Version 0.5.0
d8db998  (tag: refs/tags/0.4.2) ISP-141/ISP-184/ISP-187: Fixing the bug when loading the app with Gulp and Grunt for 0.4.2
3652484  (tag: refs/tags/0.4.1) ISP-141/ISP-184: Missing the package.json and README.md updates with the 0.4.1 version
c55eee7  (tag: refs/tags/0.4.0) ISP-141/ISP-184/ISP-187: Updating the README.md file with the latest 1.3.0 version.
6963d0b  (tag: refs/tags/0.3.0) ISP-141/ISP-184: Add support for custom serializers: README update
4afdbbe  (tag: refs/tags/0.2.0) ISP-141/ISP-143/ISP-144: Fixing a bug with the creation of the logs
e1513f1  (tag: refs/tags/0.1.0) ISP-141/ISP-143: Betterr refactoring of the Loggers, no dependencies, self-configuration for missing settings.

Your query is probably fine. "The semaphore timeout period has expired" is a Network error, not a SQL Server timeout.

There is apparently some sort of network problem between you and the SQL Server.

edit: However, apparently the query runs for 15-20 min before giving the network error. That is a very long time, so perhaps the network error could be related to the long execution time. Optimization of the underlying View might help.

If [MyTable] in your example is a View, can you post the View Definition so that we can have a go at optimizing it?

I'm not sure how you could just check if something isn't undefined and at the same time get an error that it is undefined. What browser are you using?

You could check in the following way (extra = and making length a truthy evaluation)

if (typeof(sub.from) !== 'undefined' && sub.from.length) {

[update]

I see that you reset sub and thereby reset sub.from but fail to re check if sub.from exist:

for (var i = 0; i < sub.from.length; i++) {//<== assuming sub.from.exist
            mainid = sub.from[i]['id'];
            var sub = afcHelper_Submissions[mainid]; // <== re setting sub

My guess is that the error is not on the if statement but on the for(i... statement. In Firebug you can break automatically on an error and I guess it'll break on that line (not on the if statement).

I found that for an SPA HTML5Mode causes lots of 404 error problems, and it is not necessary to make $location.search work in this case. In my case I want to capture a URL query string parameter when a user comes to my site, regardless of which "page" they initially link to, AND be able to send them to that page once they log in. So I just capture all that stuff in app.run

$rootScope.$on('$stateChangeStart', function (e, toState, toParams, fromState, fromParams) {
    if (fromState.name === "") {
        e.preventDefault();
        $rootScope.initialPage = toState.name;
        $rootScope.initialParams = toParams;
        return;
    }
    if ($location.search().hasOwnProperty('role')) {
        $rootScope.roleParameter = $location.search()['role'];
    }
    ...
}

then later after login I can say $state.go($rootScope.initialPage, $rootScope.initialParams)

You must make your foreign key nullable:

public class User
{
    public int Id { get; set; }
    public int? CountryId { get; set; }
    public virtual Country Country { get; set; }
}

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

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

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

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

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

The functools.partial() definition says that

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

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

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

This works too, with the semi-colon.

NAME=sam; echo $NAME

My issue was, i am unable to create a view with my "scott" user in oracle 11g edition. So here is my solution for this

Error in my case

SQL>create view v1 as select * from books where id=10;

insufficient privileges.

Solution

1)open your cmd and change your directory to where you install your oracle database. in my case i was downloaded in E drive so my location is E:\app\B_Amar\product\11.2.0\dbhome_1\BIN> after reaching in the position you have to type sqlplus sys as sysdba

E:\app\B_Amar\product\11.2.0\dbhome_1\BIN>sqlplus sys as sysdba

2) Enter password: here you have to type that password that you give at the time of installation of oracle software.

3) Here in this step if you want create a new user then you can create otherwise give all the privileges to existing user.

for creating new user

SQL> create user abc identified by xyz;

here abc is user and xyz is password.

giving all the privileges to abc user

SQL> grant all privileges to abc;

 grant succeeded. 

if you are seen this message then all the privileges are giving to the abc user.

4) Now exit from cmd, go to your SQL PLUS and connect to the user i.e enter your username & password.Now you can happily create view.

In My case

in cmd E:\app\B_Amar\product\11.2.0\dbhome_1\BIN>sqlplus sys as sysdba

SQL> grant all privileges to SCOTT;

grant succeeded.

Now I can create views.

Here you go. Just specify the chars you want to allow on the first line.

char[] chars = "abcdefghijklmnopqrstuvwxyz".toCharArray();
StringBuilder sb = new StringBuilder(20);
Random random = new Random();
for (int i = 0; i < 20; i++) {
    char c = chars[random.nextInt(chars.length)];
    sb.append(c);
}
String output = sb.toString();
System.out.println(output);

If you are using this to generate something sensitive like a password reset URL or session ID cookie or temporary password reset, be sure to use java.security.SecureRandom instead. Values produced by java.util.Random and java.util.concurrent.ThreadLocalRandom are mathematically predictable.

It is well suited for debugging in case your script exit if set -e is used. For example, put echo $? after the command that cause it to exit and see the returned error value.

If you created virtual environment using root then use this command

sudo su

it will give you the root access and then activate your virtual environment using this

source /root/.env/ENV_NAME/bin/activate

Create a function to move it:

function move_file($file, $to){
    $path_parts = pathinfo($file);
    $newplace   = "$to/{$path_parts['basename']}";
    if(rename($file, $newplace))
        return $newplace;
    return null;
}

The export default {...} construction is just a shortcut for something like this:

const funcs = {
    foo() { console.log('foo') }, 
    bar() { console.log('bar') },
    baz() { foo(); bar() }
}

export default funcs

It must become obvious now that there are no foo, bar or baz functions in the module's scope. But there is an object named funcs (though in reality it has no name) that contains these functions as its properties and which will become the module's default export.

So, to fix your code, re-write it without using the shortcut and refer to foo and bar as properties of funcs:

const funcs = {
    foo() { console.log('foo') }, 
    bar() { console.log('bar') },
    baz() { funcs.foo(); funcs.bar() } // here is the fix
}

export default funcs

Another option is to use this keyword to refer to funcs object without having to declare it explicitly, as @pawel has pointed out.

Yet another option (and the one which I generally prefer) is to declare these functions in the module scope. This allows to refer to them directly:

function foo() { console.log('foo') }
function bar() { console.log('bar') }
function baz() { foo(); bar() }

export default {foo, bar, baz}

And if you want the convenience of default export and ability to import items individually, you can also export all functions individually:

// util.js

export function foo() { console.log('foo') }
export function bar() { console.log('bar') }
export function baz() { foo(); bar() }

export default {foo, bar, baz}

// a.js, using default export

import util from './util'
util.foo()

// b.js, using named exports

import {bar} from './util'
bar()

Or, as @loganfsmyth suggested, you can do without default export and just use import * as util from './util' to get all named exports in one object.

If your column will only have one value something like pd.series.tolist() will produce an error. To guarantee that it will work for all cases, use the code below:

(
    df
        .filter(['column_name'])
        .values
        .reshape(1, -1)
        .ravel()
        .tolist()
)

use checkdnsrr http://php.net/manual/en/function.checkdnsrr.php

$domain = "stackoverflow.com";

checkdnsrr($domain , "A");

//returns true if has a dns A record, false otherwise

I also tried this style for ionic hybrid app background. this is also having style for background blur effect.

.bg-image {
   position: absolute;
   background: url(../img/bglogin.jpg) no-repeat;
   height: 100%;
   width: 100%;
   background-size: cover;
   bottom: 0px;
   margin: 0 auto;
   background-position: 50%;


  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
  filter: blur(5px);

}

On a Mac, I had to do the following:

sudo chown -R $USER /data/db
sudo chown -R $USER /tmp/

because there was also a file inside /tmp which Mongo also needed access

You need to Add C:\Program Files\nodejs to your PATH environment variable. To do this follow these steps:

1. Use the global Search Charm to search "Environment Variables"
2. Click "Edit system environment variables"
3. Click "Environment Variables" in the dialog.
4. In the "System Variables" box, search for Path and edit it to include C:\Program Files\nodejs. Make sure it is separated from any other paths by a ;.

You will have to restart any currently-opened command prompts before it will take effect.

You can use this for 24 hour to 12 hour:

echo date("h:i", strtotime($time));

And for vice versa:

echo date("H:i", strtotime($time));

I have done for

1. centerInParent

2. centerHorizontal

3. centerVertical

private void addOrRemoveProperty(View view, int property, boolean flag){
    RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) view.getLayoutParams();
    if(flag){
        layoutParams.addRule(property);
    }else {
        layoutParams.removeRule(property);
    }
    view.setLayoutParams(layoutParams);
}

How to call method:

centerInParent - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, true);

centerInParent - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_IN_PARENT, false);

centerHorizontal - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, true);

centerHorizontal - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_HORIZONTAL, false);

centerVertical - true

addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, true);

centerVertical - false

addOrRemoveProperty(mView, RelativeLayout.CENTER_VERTICAL, false);

Hope this would help you.

If you want to remove the [ or the ], use the expression: "\\[|\\]".

The two backslashes escape the square bracket and the pipe is an "or".

I had the same problem. I fixed it by applying the android-apt plugin https://bitbucket.org/hvisser/android-apt

What you want is the splice function on the native array object.

arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert).

In this example we will create an array and add an element to it into index 2:

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

You can use Apply and Lambda to select rows where a column contains any thing in a list. For your scenario :

df[df["col"].apply(lambda x:x not in [word1,word2,word3])]

From the docs:

_trackTrans() Sends both the transaction and item data to the Google Analytics server. This method should be called after _trackPageview(), and used in conjunction with the _addItem() and addTrans() methods. It should be called after items and transaction elements have been set up.

So, according to the docs, the items get sent when you call trackTrans(). Until you do, you can add items, but the transaction will not be sent.

Edit: Further reading led me here:

http://www.analyticsmarket.com/blog/edit-ecommerce-data

Where it clearly says you can start another transaction with an existing ID. When you commit it, the new items you listed will be added to that transaction.

try

UPDATE Table1 T1 SET
T1.name = (SELECT T2.name FROM Table2 T2 WHERE T2.id = T1.id),
T1.desc = (SELECT T2.desc FROM Table2 T2 WHERE T2.id = T1.id)
WHERE T1.id IN (SELECT T2.id FROM Table2 T2 WHERE T2.id = T1.id);

I also had the same requirement few days back

I used an full width and height svg and added it below all my divs and added lines to these svg dynamically.

Checkout the how I did it here using svg

HTML

<div id="ui-browser"><div class="anchor"></div>
     <div id="control-library" class="library">
       <div class="name-title">Control Library</div>
       <ul>
         <li>Control A</li>
         <li>Control B</li>
         <li>Control C</li>
         <li>Control D</li>
       </ul>
     </div><!--
--></div><!--
--><div id="canvas">
     <svg id='connector_canvas'></svg>
     <div class="ui-item item-1"><div class="con_anchor"></div></div>
     <div class="ui-item item-2"><div class="con_anchor"></div></div>
     <div class="ui-item item-3"><div class="con_anchor"></div></div>
     <div class="ui-item item-1"><div class="con_anchor"></div></div>
     <div class="ui-item item-2"><div class="con_anchor"></div></div>
     <div class="ui-item item-3"><div class="con_anchor"></div></div>
   </div><!--
--><div id="property-browser"></div>

https://jsfiddle.net/kgfamo4b/

    $('.anchor').on('click',function(){
   var width = parseInt($(this).parent().css('width'));
   if(width==10){
     $(this).parent().css('width','20%');
     $('#canvas').css('width','60%');
   }else{
      $(this).parent().css('width','10px');
     $('#canvas').css('width','calc( 80% - 10px)');
   }
});

$('.ui-item').draggable({
  drag: function( event, ui ) {
           var lines = $(this).data('lines');
           var con_item =$(this).data('connected-item');
           var con_lines = $(this).data('connected-lines');

           if(lines) {
             lines.forEach(function(line,id){
                    $(line).attr('x1',$(this).position().left).attr('y1',$(this).position().top+1);  
             }.bind(this));
           }

           if(con_lines){
               con_lines.forEach(function(con_line,id){
                  $(con_line).attr('x2',$(this).position().left)
                        .attr('y2',$(this).position().top+(parseInt($(this).css('height'))/2)+(id*5));
               }.bind(this));

           }

       }
});

$('.ui-item').droppable({
  accept: '.con_anchor',
  drop: function(event,ui){
     var item = ui.draggable.closest('.ui-item');
     $(this).data('connected-item',item);
     ui.draggable.css({top:-2,left:-2});
     item.data('lines').push(item.data('line'));

     if($(this).data('connected-lines')){
        $(this).data('connected-lines').push(item.data('line'));

         var y2_ = parseInt(item.data('line').attr('y2'));
         item.data('line').attr('y2',y2_+$(this).data('connected-lines').length*5);

     }else $(this).data('connected-lines',[item.data('line')]);

     item.data('line',null);
    console.log('dropped');
  }
});


$('.con_anchor').draggable({drag: function( event, ui ) {
     var _end = $(event.target).parent().position();
     var end = $(event.target).position();
     if(_end&&end)  
     $(event.target).parent().data('line')
                                                    .attr('x2',end.left+_end.left+5).attr('y2',end.top+_end.top+2);
},stop: function(event,ui) {
        if(!ui.helper.closest('.ui-item').data('line')) return;
        ui.helper.css({top:-2,left:-2});
        ui.helper.closest('.ui-item').data('line').remove();
        ui.helper.closest('.ui-item').data('line',null);
        console.log('stopped');
      }
});


$('.con_anchor').on('mousedown',function(e){
    var cur_ui_item = $(this).closest('.ui-item');
    var connector = $('#connector_canvas');
    var cur_con;

  if(!$(cur_ui_item).data('lines')) $(cur_ui_item).data('lines',[]);

  if(!$(cur_ui_item).data('line')){
         cur_con = $(document.createElementNS('http://www.w3.org/2000/svg','line'));
         cur_ui_item.data('line',cur_con);
    } else cur_con = cur_ui_item.data('line');

    connector.append(cur_con);
    var start = cur_ui_item.position();
     cur_con.attr('x1',start.left).attr('y1',start.top+1);
     cur_con.attr('x2',start.left+1).attr('y2',start.top+1);
});

This is an example of Python lists:

my_list = [0,1,2,3,4]
top_rock_list = ["Bohemian Rhapsody","Kashmir","Sweet Emotion", "Fortunate Son"]

This is an example of Python tuple:

my_tuple = (a,b,c,d,e)
celebrity_tuple = ("John", "Wayne", 90210, "Actor", "Male", "Dead")

Python lists and tuples are similar in that they both are ordered collections of values. Besides the shallow difference that lists are created using brackets "[ ... , ... ]" and tuples using parentheses "( ... , ... )", the core technical "hard coded in Python syntax" difference between them is that the elements of a particular tuple are immutable whereas lists are mutable (...so only tuples are hashable and can be used as dictionary/hash keys!). This gives rise to differences in how they can or can't be used (enforced a priori by syntax) and differences in how people choose to use them (encouraged as 'best practices,' a posteriori, this is what smart programers do). The main difference a posteriori in differentiating when tuples are used versus when lists are used lies in what meaning people give to the order of elements.

For tuples, 'order' signifies nothing more than just a specific 'structure' for holding information. What values are found in the first field can easily be switched into the second field as each provides values across two different dimensions or scales. They provide answers to different types of questions and are typically of the form: for a given object/subject, what are its attributes? The object/subject stays constant, the attributes differ.

For lists, 'order' signifies a sequence or a directionality. The second element MUST come after the first element because it's positioned in the 2nd place based on a particular and common scale or dimension. The elements are taken as a whole and mostly provide answers to a single question typically of the form, for a given attribute, how do these objects/subjects compare? The attribute stays constant, the object/subject differs.

There are countless examples of people in popular culture and programmers who don't conform to these differences and there are countless people who might use a salad fork for their main course. At the end of the day, it's fine and both can usually get the job done.

To summarize some of the finer details

Similarities:

1. Duplicates - Both tuples and lists allow for duplicates

2. Indexing, Selecting, & Slicing - Both tuples and lists index using integer values found within brackets. So, if you want the first 3 values of a given list or tuple, the syntax would be the same:

   >>> my_list[0:3]
   [0,1,2]
   >>> my_tuple[0:3]
   [a,b,c]
   

3. Comparing & Sorting - Two tuples or two lists are both compared by their first element, and if there is a tie, then by the second element, and so on. No further attention is paid to subsequent elements after earlier elements show a difference.

   >>> [0,2,0,0,0,0]>[0,0,0,0,0,500]
   True
   >>> (0,2,0,0,0,0)>(0,0,0,0,0,500)
   True
   

Differences: - A priori, by definition

1. Syntax - Lists use [], tuples use ()

2. Mutability - Elements in a given list are mutable, elements in a given tuple are NOT mutable.

   # Lists are mutable:
   >>> top_rock_list
   ['Bohemian Rhapsody', 'Kashmir', 'Sweet Emotion', 'Fortunate Son']
   >>> top_rock_list[1]
   'Kashmir'
   >>> top_rock_list[1] = "Stairway to Heaven"
   >>> top_rock_list
   ['Bohemian Rhapsody', 'Stairway to Heaven', 'Sweet Emotion', 'Fortunate Son']
   
   # Tuples are NOT mutable:       
   >>> celebrity_tuple
   ('John', 'Wayne', 90210, 'Actor', 'Male', 'Dead')
   >>> celebrity_tuple[5]
   'Dead'
   >>> celebrity_tuple[5]="Alive"
   Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   TypeError: 'tuple' object does not support item assignment
   

3. Hashtables (Dictionaries) - As hashtables (dictionaries) require that its keys are hashable and therefore immutable, only tuples can act as dictionary keys, not lists.

   #Lists CAN'T act as keys for hashtables(dictionaries)
   >>> my_dict = {[a,b,c]:"some value"}
   Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
   TypeError: unhashable type: 'list'
   
   #Tuples CAN act as keys for hashtables(dictionaries)
   >>> my_dict = {("John","Wayne"): 90210}
   >>> my_dict
   {('John', 'Wayne'): 90210}
   

Differences - A posteriori, in usage

1. Homo vs. Heterogeneity of Elements - Generally list objects are homogenous and tuple objects are heterogeneous. That is, lists are used for objects/subjects of the same type (like all presidential candidates, or all songs, or all runners) whereas although it's not forced by), whereas tuples are more for heterogenous objects.

2. Looping vs. Structures - Although both allow for looping (for x in my_list...), it only really makes sense to do it for a list. Tuples are more appropriate for structuring and presenting information (%s %s residing in %s is an %s and presently %s % ("John","Wayne",90210, "Actor","Dead"))

If you are using the GNU C library or another POSIX-compliant library, you can use getline() and pass stdin to it for the file stream.

Old answers. An update: use flexbox, pretty much works in all browsers now.

<div style="display: flex; justify-content: flex-end">_x000D_
  <div>I'm on the right</div>_x000D_
</div>

And you can get even fancier, simply:

<div style="display: flex; justify-content: space-around">_x000D_
  <div>Left</div>_x000D_
  <div>Right</div>_x000D_
</div>

And fancier:

<div style="display: flex; justify-content: space-around">_x000D_
   <div>Left</div>_x000D_
   <div>Middle</div>_x000D_
  <div>Right</div>_x000D_
</div>

I know you've accepted an answer for this, but there's now a solution that lets you get an intellisense style completion box pop up like for the other excel functions, via an Excel-DNA add in, or by registering an intellisense server inside your own add in. See here.

Now, i prefer the C# way of doing it - it's much simpler, as inside Excel-DNA, any class that implements IExcelAddin is picked up by the addin framework and has AutoOpen() and AutoClose() run when you open/close the add in. So you just need this:

namespace MyNameSpace {
    public class Intellisense : IExcelAddIn {
        public void AutoClose() {
        }
        public void AutoOpen() {
            IntelliSenseServer.Register();
        }
    }
}

and then (and this is just taken from the github page), you just need to use the ExcelDNA annotations on your functions:

[ExcelFunction(Description = "A useful test function that adds two numbers, and returns the sum.")]
public static double AddThem(
    [ExcelArgument(Name = "Augend", Description = "is the first number, to which will be added")] 
    double v1,
    [ExcelArgument(Name = "Addend", Description = "is the second number that will be added")]     
    double v2)
{
    return v1 + v2;
}

which are annotated using the ExcelDNA annotations, the intellisense server will pick up the argument names and descriptions.

There are examples for using it with just VBA too, but i'm not too into my VBA, so i don't use those parts.

The .css() function doesn't queue behind running animations, it's instantaneous.

To match the behaviour that you're after, you'd need to do the following:

$(document).ready(function() {
  $("button").mouseover(function() {
    var p = $("p#44.test").css("background-color", "yellow");
    p.hide(1500).show(1500);
    p.queue(function() {
      p.css("background-color", "red");
    });
  });
});

The .queue() function waits for running animations to run out and then fires whatever's in the supplied function.

Yes, you can get all keys by using this

var redis = require('redis');
redisClient = redis.createClient(redis.port, redis.host);    
  redisClient.keys('*example*', function (err, keys) {
})

It didn't work for me with all those steps. Strangely enough I noticed Intellisense was working for another solution in visual studio 2015, but not for a specific one.

I located and deleted the .suo file and restarted visual studio. That fixed it for me.

Favicons only work when served from a web-server which sets mime-types correctly for served content. Loading from a local file might not work in chromium. Loading from an incorrectly configured web-server will not work.

Web-servers such as lighthttpd must be configured manually to set the mime type correctly.

Because of the likelihood that mimetype assignment will not work in all environments, I would suggest you use an inline base64 encoded ico file instead. This will load faster as well, as it reduces the number of http requests sent to the server.

On POSIX based systems you can base64 encode a file with the base64 command.

To create a base64 encoded ico line use the command:

$ base64 favicon.ico --wrap 0

And insert the output into the line:

<link href="data:image/x-icon;base64,HERE" rel="icon" type="image/x-icon" />

Replacing the word HERE like so:

<link href="data:image/x-icon;base64,AAABAAEAEBAQAAEABAAoAQAAFgAAACgAAAAQAAAAIAAAAAEABAAAAAAAgAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAA////AERpOgA5cCcA7vDtAF6jSABllFcAuuCvAK2trQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAFjMzMzMzNxARYzMzMzVBEEERYzMzNhERZxRGMzZxQEA2FER3cRSAgTNxgEEREIQBMzFIARERFEEzNhERARFAATMzYREBEAhBMzMzEYEBFEEzMzNhEQQRQDMzMzcRgEAAMzMzNhERgIEzMzMyERgEQDMzMzMRAEgEMzMzMxERAEEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" rel="icon" type="image/x-icon" />

Use SimpleDateFormat for Android N and above. Use the calendar for earlier versions for example:

if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        fileName = new SimpleDateFormat("yyyy-MM-dd-hh:mm:ss").format(new Date());
        Log.i("fileName before",fileName);
    }else{
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.MONTH,1);
        String zamanl =""+cal.get(Calendar.YEAR)+"-"+cal.get(Calendar.MONTH)+"-"+cal.get(Calendar.DAY_OF_MONTH)+"-"+cal.get(Calendar.HOUR_OF_DAY)+":"+cal.get(Calendar.MINUTE)+":"+cal.get(Calendar.SECOND);

        fileName= zamanl;
        Log.i("fileName after",fileName);
    }

Output:
fileName before: 2019-04-12-07:14:47  // use SimpleDateFormat
fileName after: 2019-4-12-7:13:12        // use Calender

Re: changing opts to theme etc (for lazy folks):

theme(axis.line=element_blank(),
      axis.text.x=element_blank(),
      axis.text.y=element_blank(),
      axis.ticks=element_blank(),
      axis.title.x=element_blank(),
      axis.title.y=element_blank(),
      legend.position="none",
      panel.background=element_blank(),
      panel.border=element_blank(),
      panel.grid.major=element_blank(),
      panel.grid.minor=element_blank(),
      plot.background=element_blank())

The relational algebra allows interchangeability of the predicates in the WHERE clause and the INNER JOIN, so even INNER JOIN queries with WHERE clauses can have the predicates rearrranged by the optimizer so that they may already be excluded during the JOIN process.

I recommend you write the queries in the most readable way possible.

Sometimes this includes making the INNER JOIN relatively "incomplete" and putting some of the criteria in the WHERE simply to make the lists of filtering criteria more easily maintainable.

For example, instead of:

SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
    ON ca.CustomerID = c.CustomerID
    AND c.State = 'NY'
INNER JOIN Accounts a
    ON ca.AccountID = a.AccountID
    AND a.Status = 1

Write:

SELECT *
FROM Customers c
INNER JOIN CustomerAccounts ca
    ON ca.CustomerID = c.CustomerID
INNER JOIN Accounts a
    ON ca.AccountID = a.AccountID
WHERE c.State = 'NY'
    AND a.Status = 1

But it depends, of course.

See if the plugin has a 'skip' configuration parameter. Nearly all do. if it does, just add it to a declaration in the child:

<plugin>
   <groupId>group</groupId>
   <artifactId>artifact</artifactId>
   <configuration>
     <skip>true</skip>
   </configuration>
</plugin>

If not, then use:

<plugin>    
<groupId>group</groupId>   
 <artifactId>artifact</artifactId>    
<executions>
     <execution>
       <id>TheNameOfTheRelevantExecution</id>
       <phase>none</phase>
     </execution>    
</executions>  
</plugin>

Import in Java does not work at all, as it is evaluated at compile time only. (Treat it as shortcuts so you do not have to write fully qualified class names). At runtime there is no import at all, just FQCNs.

At runtime it is necessary that all classes you have referenced can be found by classloaders. (classloader infrastructure is sometimes dark magic and highly dependent on environment.) In case of an applet you will have to rig up your HTML tag properly and also provide necessary JAR archives on your server.

PS: Matching at runtime is done via qualified class names - class found under this name is not necessarily the same or compatible with class you have compiled against.

for the GitLab Enterprise Edition 9.3.0

By default, master branch is protected so unprotect :)

1-Select you "project"

2-Select "Repository"

3-Select "branches"

4-Select "Project Settings"

5-In "Protected Branches" click to "expand"

6-and after click in "unprotect" button

from lemiorhan example i can solve with just change some line of lemiorhan's code use:

JSONObject json = new JSONObject(obj);

instead of this:

JSONObject json = (JSONObject) obj

so in my test code is :

Map item_sub2 = new LinkedHashMap();
item_sub2.put("name", "flare");
item_sub2.put("val1", "val1");
item_sub2.put("val2", "val2");
item_sub2.put("size",102);

JSONArray itemarray2 = new JSONArray();
itemarray2.add(item_sub2);
itemarray2.add(item_sub2);//just for test
itemarray2.add(item_sub2);//just for test


Map item_sub1 = new LinkedHashMap();
item_sub1.put("name", "flare");
item_sub1.put("val1", "val1");
item_sub1.put("val2", "val2");
item_sub1.put("children",itemarray2);

JSONArray itemarray = new JSONArray();
itemarray.add(item_sub1);
itemarray.add(item_sub1);//just for test
itemarray.add(item_sub1);//just for test

Map item_root = new LinkedHashMap();
item_root.put("name", "flare");
item_root.put("children",itemarray);

JSONObject json = new JSONObject(item_root);

System.out.println(json.toJSONString());

Strict Contextual Escaping can be disabled entirely, allowing you to inject html using ng-html-bind. This is an unsafe option, but helpful when testing.

Example from the AngularJS documentation on $sce:

angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) {
  // Completely disable SCE.  For demonstration purposes only!
  // Do not use in new projects.
  $sceProvider.enabled(false);
});

Attaching the above config section to your app will allow you inject html into ng-html-bind, but as the doc remarks:

SCE gives you a lot of security benefits for little coding overhead. It will be much harder to take an SCE disabled application and either secure it on your own or enable SCE at a later stage. It might make sense to disable SCE for cases where you have a lot of existing code that was written before SCE was introduced and you're migrating them a module at a time.

You should implement a Custom List View, such that you define a Layout once and draw it for every row in the list view.

This should make your TextView bold, underlined and italic at the same time.

strings.xml

<resources>
    <string name="register"><u><b><i>Copyright</i></b></u></string>
</resources>

To set this String to your TextView, do this in your main.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/textview"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:text="@string/register" />

or In JAVA,

TextView textView = new TextView(this);
textView.setText(R.string.register);

Sometimes the above approach will not be helpful when you might have to use Dynamic Text. So in that case SpannableString comes into action.

String tempString="Copyright";
TextView text=(TextView)findViewById(R.id.text);
SpannableString spanString = new SpannableString(tempString);
spanString.setSpan(new UnderlineSpan(), 0, spanString.length(), 0);
spanString.setSpan(new StyleSpan(Typeface.BOLD), 0, spanString.length(), 0);
spanString.setSpan(new StyleSpan(Typeface.ITALIC), 0, spanString.length(), 0);
text.setText(spanString);

OUTPUT

I know I am late, but stumped into the question, and based on ThomasH's answer:

for i in range(4): print "i equals 3" if i==3 else None

output: None None None i equals 3

I propose to update as:

for i in range(4): print("i equals 3") if i==3 else print('', end='')

output: i equals 3

Note, I am in python3 and had to use two print commands. pass after else won't work. Wanted to just comment on ThomasH's answer, but can't because I don't have enough reputation yet.

My approach would be to make all the calculations in a background worker.

Then change the cursor like this:

this.Cursor = Cursors.Wait;

And in the thread's finish event restore the cursor:

this.Cursor = Cursors.Default;

Note, this can also be done for specific controls, so the cursor will be the hourglass only when the mouse is above them.

You must turn off "background refresh" for all queries. If background refresh is on, Excel works ahead while the refresh occurs and you have problems.

Data > Connections > Properties > (uncheck) enable background refresh

AFAIK, you have to convert it to grayscale and then threshold it to binary.

1. Read the image as a grayscale image If you're reading the RGB image from disk, then you can directly read it as a grayscale image, like this:

// C
IplImage* im_gray = cvLoadImage("image.jpg",CV_LOAD_IMAGE_GRAYSCALE);

// C++ (OpenCV 2.0)
Mat im_gray = imread("image.jpg",CV_LOAD_IMAGE_GRAYSCALE);

2. Convert an RGB image im_rgb into a grayscale image: Otherwise, you'll have to convert the previously obtained RGB image into a grayscale image

// C
IplImage *im_rgb  = cvLoadImage("image.jpg");
IplImage *im_gray = cvCreateImage(cvGetSize(im_rgb),IPL_DEPTH_8U,1);
cvCvtColor(im_rgb,im_gray,CV_RGB2GRAY);

// C++
Mat im_rgb  = imread("image.jpg");
Mat im_gray;
cvtColor(im_rgb,im_gray,CV_RGB2GRAY);

3. Convert to binary You can use adaptive thresholding or fixed-level thresholding to convert your grayscale image to a binary image.

E.g. in C you can do the following (you can also do the same in C++ with Mat and the corresponding functions):

// C
IplImage* im_bw = cvCreateImage(cvGetSize(im_gray),IPL_DEPTH_8U,1);
cvThreshold(im_gray, im_bw, 128, 255, CV_THRESH_BINARY | CV_THRESH_OTSU);

// C++
Mat img_bw = im_gray > 128;

In the above example, 128 is the threshold.

4. Save to disk

// C
cvSaveImage("image_bw.jpg",img_bw);

// C++
imwrite("image_bw.jpg", img_bw);

Correct way described in this answer: https://stackoverflow.com/a/52772444/2519714 Most popular answer at current moment is not totally correct.

This way https://stackoverflow.com/a/24838367/2519714 is not correct in some cases like: sub select has where bindings, then joining table to sub select, then other wheres added to all query. For example query: select * from (select * from t1 where col1 = ?) join t2 on col1 = col2 and col3 = ? where t2.col4 = ? To make this query you will write code like:

$subQuery = DB::query()->from('t1')->where('t1.col1', 'val1');
$query = DB::query()->from(DB::raw('('. $subQuery->toSql() . ') AS subquery'))
    ->mergeBindings($subQuery->getBindings());
$query->join('t2', function(JoinClause $join) {
    $join->on('subquery.col1', 't2.col2');
    $join->where('t2.col3', 'val3');
})->where('t2.col4', 'val4');

During executing this query, his method $query->getBindings() will return bindings in incorrect order like ['val3', 'val1', 'val4'] in this case instead correct ['val1', 'val3', 'val4'] for raw sql described above.

One more time correct way to do this:

$subQuery = DB::query()->from('t1')->where('t1.col1', 'val1');
$query = DB::query()->fromSub($subQuery, 'subquery');
$query->join('t2', function(JoinClause $join) {
    $join->on('subquery.col1', 't2.col2');
    $join->where('t2.col3', 'val3');
})->where('t2.col4', 'val4');

Also bindings will be automatically and correctly merged to new query.

Converting the retreived data from the request object to json object is as below using google-gson

Gson gson = new Gson();
ABCClass c1 = gson.fromJson(data, ABCClass.class);

//ABC class is a class whose strcuture matches to the data variable retrieved

For SQL Reporting Services 2012 - SP1 and SharePoint 2013.

I got the same issue: The permissions granted to user '[AppPoolAccount]' are insufficient for performing this operation.

I went into the service application settings, clicked Key Management, then Change key and had it regenerate the key.

If you are also interested in commercial implementations, you should take a look at Nirvana from my-channels.

Nirvana is used heavily within the Financial Services industry for large scale low-latency trading and price distribution platforms.

There is support for a wide range of client programming languages across the enterprise, web and mobile domains.

The clustering capabilities are extremely advanced and worth a look if transparent HA or load balancing is important for you.

Nirvana is free to download for development purposes.

You can push all local tags by simply git push --tags command.

$ git tag                         # see tag lists
$ git push origin <tag-name>      # push a single tag
$ git push --tags                 # push all local tags 

If s is your string:

s.replace(/^[^(]*\(/, "") // trim everything before first parenthesis
 .replace(/\)[^(]*$/, "") // trim everything after last parenthesis
 .split(/\)[^(]*\(/);      // split between parenthesis

SELECT  *
FROM    (
        SELECT  *
        FROM    mytable
        ORDER BY
                dbms_random.value
        )
WHERE rownum <= 1000

Put the word.txt directly as a child of the project root folder and a peer of src

Project_Root
    src
    word.txt

Disclaimer: I'd like to explain why this works for this particular case and why it may not work for others.

Why it works:

When you use File or any of the other FileXxx variants, you are looking for a file on the file system relative to the "working directory". The working directory, can be described as this:

When you run from the command line

C:\EclipseWorkspace\ProjectRoot\bin > java com.mypackage.Hangman1

the working directory is C:\EclipseWorkspace\ProjectRoot\bin. With your IDE (at least all the ones I've worked with), the working directory is the ProjectRoot. So when the file is in the ProjectRoot, then using just the file name as the relative path is valid, because it is at the root of the working directory.

Similarly, if this was your project structure ProjectRoot\src\word.txt, then the path "src/word.txt" would be valid.

Why it May not Work

For one, the working directory could always change. For instance, running the code from the command line like in the example above, the working directory is the bin. So in this case it will fail, as there is not bin\word.txt

Secondly, if you were to export this project into a jar, and the file was configured to be included in the jar, it would also fail, as the path will no longer be valid either.

That being said, you need to determine if the file is to be an embedded-resource (or just "resource" - terms which sometimes I'll use interchangeably). If so, then you will want to build the file into the classpath, and access it via an URL. First thing you would need to do (in this particular) case is make sure that the file get built into the classpath. With the file in the project root, you must configure the build to include the file. But if you put the file in the src or in some directory below, then the default build should put it into the class path.

You can access classpath resource in a number of ways. You can make use of the Class class, which has getResourceXxx method, from which you use to obtain classpath resources.

For example, if you changed your project structure to ProjectRoot\src\resources\word.txt, you could use this:

InputStream is = Hangman1.class.getResourceAsStream("/resources/word.txt");
BufferedReader reader = new BufferedReader(new InputStreamReader(is));

getResourceAsStream returns an InputStream, but obtains an URL under the hood. Alternatively, you could get an URL if that's what you need. getResource() will return an URL

For Maven users, where the directory structure is like src/main/resources, the contents of the resources folder is put at the root of the classpath. So if you have a file in there, then you would only use getResourceAsStream("/thefile.txt")

Thanks to all for the posts but unfortunatley none of the above solved my problem. Eventually what got it all working for me was to download eclipse indigo 3.7.2 and (this is very important) EXTRACT IT DIRECTLY INTO MY PROGRAMS FOLDER. Before I would extract it to my desktop and copy into the programs folder (C:\Program Files) but I would jus get an error message saying "The Eclipse executable launcher was unable to locate its companion shared library" when trying to run eclipse.

After extracting eclipse directly to my programs folder I ran it and added the ADT plugin the way reccomended in on the android site and so far all is working well :)

I'm on a windows 7 x64 machine and had jre-7u2-windows-x64.exe, jdk-7u2-windows-x64.exe and installer_r16-windows.exe installed before extracting eclipse.

I hope this can help someone else too :)

Use the oninput event

<input type="text" oninput="myFunction();" />

You have to bind your event handlers to correct context (this):

onChange={this.setAuthorState.bind(this)}

This worked for me

mysqldump -u root -p mydbscheme > mydbscheme_dump.sql

after issuing the command it asks for a password:

Enter password:

entering the password will make the dump file.

I found your question while searching for information with SQLite and Java. Just thought I'd add my answer which I also posted on my blog.

I have been coding in Java for a while now. I have also known about SQLite but never used it… Well I have used it through other applications but never in an app that I coded. So I needed it for a project this week and it's so simple use!

I found a Java JDBC driver for SQLite. Just add the JAR file to your classpath and import java.sql.*

His test app will create a database file, send some SQL commands to create a table, store some data in the table, and read it back and display on console. It will create the test.db file in the root directory of the project. You can run this example with java -cp .:sqlitejdbc-v056.jar Test.

package com.rungeek.sqlite;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;

public class Test {
    public static void main(String[] args) throws Exception {
        Class.forName("org.sqlite.JDBC");
        Connection conn = DriverManager.getConnection("jdbc:sqlite:test.db");
        Statement stat = conn.createStatement();
        stat.executeUpdate("drop table if exists people;");
        stat.executeUpdate("create table people (name, occupation);");
        PreparedStatement prep = conn.prepareStatement(
            "insert into people values (?, ?);");

        prep.setString(1, "Gandhi");
        prep.setString(2, "politics");
        prep.addBatch();
        prep.setString(1, "Turing");
        prep.setString(2, "computers");
        prep.addBatch();
        prep.setString(1, "Wittgenstein");
        prep.setString(2, "smartypants");
        prep.addBatch();

        conn.setAutoCommit(false);
        prep.executeBatch();
        conn.setAutoCommit(true);

        ResultSet rs = stat.executeQuery("select * from people;");
        while (rs.next()) {
            System.out.println("name = " + rs.getString("name"));
            System.out.println("job = " + rs.getString("occupation"));
        }
        rs.close();
        conn.close();
    }
  }

Although @yanick-rochon answer is correct, the simplest way to achieve your goal (if it's to serve a dynamically generated html) is:

var http = require('http');
http.createServer(function (req, res) {
  res.write('<html><head></head><body>');
  res.write('<p>Write your HTML content here</p>');
  res.end('</body></html>');
}).listen(1337);

This way when you browse at http://localhost:1337 you'll get your html page.

I think there's an even easier way now. This enables basic caching for all $http requests (which $resource inherits):

 var app = angular.module('myApp',[])
      .config(['$httpProvider', function ($httpProvider) {
            // enable http caching
           $httpProvider.defaults.cache = true;
      }])

I write my answer in Python 3.2.1.

def overload(*functions):
    return lambda *args, **kwargs: functions[len(args)](*args, **kwargs)

How it works:

1. overload takes any amount of callables and stores them in tuple functions, then returns lambda.
2. The lambda takes any amount of arguments, then returns result of calling function stored in functions[number_of_unnamed_args_passed] called with arguments passed to the lambda.

Usage:

class A:
    stackoverflow=overload(                    \
        None, \ 
        #there is always a self argument, so this should never get called
        lambda self: print('First method'),      \
        lambda self, i: print('Second method', i) \
    )

j.append(l)

Also avoid using lower-case "L's" because it is easy for them to be confused with 1's

I usually use the Export/import tables feature of IntelliJ DataGrip.

You can see the progress in the bottom right corner.

[]

This standard library solution likely has not been mentioned because the question is so dated. While these answers may scale to the other use cases beyond currency where differing levels of decimals are required, it seems you need it for currency.

I recommend you use the standard library locale.currency object. It seems to have been created to address this problem of currency representation.

import locale
locale.setlocale(locale.LC_ALL, 'en_US.UTF-8')

locale.currency(1.23)
>>>'$1.23'
locale.currency(1.53251)
>>>'$1.23'
locale.currency(1)
>>>'$1.00'

locale.currency(mealPrice)

Currency generalizes to other countries as well.

Just in case above solution did not work. In my case , Bitdefender Antivirus was Preventing AAPT2 from making change on certain file.

On page 358 of the book Python scripting for computational science by Hans Petter Langtangen, it clearly states that

• The __repr__ aims at a complete string representation of the object;
• The __str__ is to return a nice string for printing.

So, I prefer to understand them as

• repr = reproduce
• str = string (representation)

from the user's point of view although this is a misunderstanding I made when learning python.

A small but good example is also given on the same page as follows:

Example

In [38]: str('s')
Out[38]: 's'

In [39]: repr('s')
Out[39]: "'s'"

In [40]: eval(str('s'))
Traceback (most recent call last):

  File "<ipython-input-40-abd46c0c43e7>", line 1, in <module>
    eval(str('s'))

  File "<string>", line 1, in <module>

NameError: name 's' is not defined


In [41]: eval(repr('s'))
Out[41]: 's'

By default mysqldump always creates the CREATE DATABASE IF NOT EXISTS db_name; statement at the beginning of the dump file.

[EDIT] Few things about the mysqldump file and it's options:

--all-databases, -A

Dump all tables in all databases. This is the same as using the --databases option and naming all the databases on the command line.

--add-drop-database

Add a DROP DATABASE statement before each CREATE DATABASE statement. This option is typically used in conjunction with the --all-databases or --databases option because no CREATE DATABASE statements are written unless one of those options is specified.

--databases, -B

Dump several databases. Normally, mysqldump treats the first name argument on the command line as a database name and following names as table names. With this option, it treats all name arguments as database names. CREATE DATABASE and USE statements are included in the output before each new database.

--no-create-db, -n

This option suppresses the CREATE DATABASE statements that are otherwise included in the output if the --databases or --all-databases option is given.

Some time ago, there was similar question actually asking about not having such statement on the beginning of the file (for XML file). Link to that question is here.

So to answer your question:

• if you have one database to dump, you should have the --add-drop-database option in your mysqldump statement.
• if you have multiple databases to dump, you should use the option --databases or --all-databases and the CREATE DATABASE syntax will be added automatically

More information at MySQL Reference Manual

Before starting your download check your runtime permissions and if you don't have permission the request permissions like this method

requestStoragePermission()

private void requestStoragePermission(){
    if (ActivityCompat.shouldShowRequestPermissionRationale(this, 
                android.Manifest.permission.READ_EXTERNAL_STORAGE))
        {

        }

        ActivityCompat.requestPermissions(this, 
            new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
            STORAGE_PERMISSION_CODE);
}

@Override
public void onRequestPermissionsResult(int requestCode, 
                @NonNull String[] permissions, 
                @NonNull int[] grantResults) {

    if(requestCode == STORAGE_PERMISSION_CODE){
        if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
        }
        else{
            Toast.makeText(this,
                           "Oops you just denied the permission", 
                           Toast.LENGTH_LONG).show();
        }
    }
}

Just access the Priority property of the object returned from the pipeline:

$var = (Get-WSManInstance -enumerate wmicimv2/win32_process).Priority

(This won't work if Get-WSManInstance returns multiple objects.²)

For the second question: to get two properties there are several options, problably the simplest is to have have one variable* containing an object with two separate properties:

$var = (Get-WSManInstance -enumerate wmicimv2/win32_process | select -first 1 Priority, ProcessID)

and then use, assuming only one process:

$var.Priority

and

$var.ProcessID

If there are multiple processes $var will be an array which you can index, so to get the properties of the first process (using the array literal syntax @(...) so it is always a collection¹):

$var = @(Get-WSManInstance -enumerate wmicimv2/win32_process | select -first 1 Priority, ProcessID)

and then use:

$var[0].Priority
$var[0].ProcessID

¹ PowerShell helpfully for the command line, but not so helpfully in scripts has some extra logic when assigning the result of a pipeline to a variable: if no objects are returned then set $null, if one is returned then that object is assigned, otherwise an array is assigned. Forcing an array returns an array with zero, one or more (respectively) elements.

² This changes in PowerShell V3 (at the time of writing in Release Candidate), using a member property on an array of objects will return an array of the value of those properties.

One way around this problem is to use stored procedures with an output parameter.

exec sp_mysprocname @returnvalue output, @firstparam = 1, @secondparam=2

values you do not pass in default to the defaults set in the stored procedure itself. And you can get the results from your output variable.

I will explain the method i usally prefer:

First of all you need to take into consideration that for this method you will sacrifice memory with the aim of gaining computation speed. Second you need to have a the right to edit the table structure.

1) Add a field (i usually call it "digest") where you store all the data from the table.

The field will look like:

"n-n1-n2-n3-n4-n5-n6-n7-n8-n9" etc.. where n is a single word

I achieve this using a regular expression thar replaces " " with "-". This field is the result of all the table data "digested" in one sigle string.

2) Use the LIKE statement %keyword% on the digest field:

SELECT * FROM table WHERE digest LIKE %keyword%

you can even build a qUery with a little loop so you can search for multiple keywords at the same time looking like:

SELECT * FROM table WHERE 
 digest LIKE %keyword1% AND 
 digest LIKE %keyword2% AND 
 digest LIKE %keyword3% ... 

Add a CommandName attribute, and optionally a CommandArgument attribute, to your LinkButton control. Then set the OnCommand attribute to the name of your Command event handler.

<asp:LinkButton ID="ENameLinkBtn" runat="server" CommandName="MyValueGoesHere" CommandArgument="OtherValueHere" 
          style="font-weight: 700; font-size: 8pt;" OnCommand="ENameLinkBtn_Command" ><%# Eval("EName") %></asp:LinkButton>

<asp:Label id="Label1" runat="server"/>

Then it will be available when in your handler:

protected void ENameLinkBtn_Command (object sender, CommandEventArgs e)
{
   Label1.Text = "You chose: " + e.CommandName + " Item " + e.CommandArgument;
}

More info on MSDN

in tcsh or csh:

~> set a = ( 1 2 3 4 5 )
~> echo $#a
5

I gathered all what others have suggested and created following function which has 3 arguments, the number and the base which that number has come from and the base which that number is going to be on:

changeBase(1101000, 2, 10) => 104

Run Code Snippet to try it yourself:

function changeBase(number, fromBase, toBase) {_x000D_
                        if (fromBase == 10)_x000D_
                            return (parseInt(number)).toString(toBase)_x000D_
                        else if (toBase == 10)_x000D_
                            return parseInt(number, fromBase);_x000D_
                        else{_x000D_
                            var numberInDecimal = parseInt(number, fromBase);_x000D_
                            return (parseInt(numberInDecimal)).toString(toBase);_x000D_
                    }_x000D_
}_x000D_
_x000D_
$("#btnConvert").click(function(){_x000D_
  var number = $("#txtNumber").val(),_x000D_
  fromBase = $("#txtFromBase").val(),_x000D_
  toBase = $("#txtToBase").val();_x000D_
  $("#lblResult").text(changeBase(number, fromBase, toBase));_x000D_
});

#lblResult{_x000D_
  padding: 20px;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<input id="txtNumber" type="text" placeholder="Number" />_x000D_
<input id="txtFromBase" type="text" placeholder="From Base" />_x000D_
<input id="txtToBase" type="text" placeholder="To Base" />_x000D_
<input id="btnConvert" type="button" value="Convert" />_x000D_
<span id="lblResult"></span>_x000D_
_x000D_
<p>Hint: <br />_x000D_
Try 110, 2, 10 and it will return 6; (110)<sub>2</sub> = 6<br />_x000D_
_x000D_
or 2d, 16, 10 => 45 meaning: (2d)<sub>16</sub> = 45<br />_x000D_
or 45, 10, 16 => 2d meaning: 45 = (2d)<sub>16</sub><br />_x000D_
or 2d, 2, 16 => 2d meaning: (101101)<sub>2</sub> = (2d)<sub>16</sub><br />_x000D_
</p>

FYI: If you want to pass 2d as hex number, you need to send it as a string so it goes like this: changeBase('2d', 16, 10)

In practical terms, don't do that.

Instead add a button with Custom style (no button graphics unless you specify images) over the UIImageView. Then attach whatever methods you want called to that.

You can use that technique for many cases where you really want some area of the screen to act as a button instead of messing with the Touch stuff.

In order to reuse a single confirmation dialog implementation in a multi-module application, the dialog must be implemented in a separate module. Here's one way of doing this with Material Design and FxFlex, though both of those can be trimmed back or replaced.

First the shared module (./app.module.ts):

import {NgModule} from '@angular/core';
import {CommonModule} from '@angular/common';
import {MatDialogModule, MatSelectModule} from '@angular/material';
import {ConfirmationDlgComponent} from './confirmation-dlg.component';
import {FlexLayoutModule} from '@angular/flex-layout';

@NgModule({
   imports: [
      CommonModule,
      FlexLayoutModule,
      MatDialogModule
   ],
   declarations: [
      ConfirmationDlgComponent
   ],
   exports: [
      ConfirmationDlgComponent
   ],
   entryComponents: [ConfirmationDlgComponent]
})

export class SharedModule {
}

And the dialog component (./confirmation-dlg.component.ts):

import {Component, Inject} from '@angular/core';
import {MAT_DIALOG_DATA} from '@angular/material';

@Component({
   selector: 'app-confirmation-dlg',
   template: `
      <div fxLayoutAlign="space-around" class="title colors" mat-dialog-title>{{data.title}}</div>
      <div class="msg" mat-dialog-content>
         {{data.msg}}
      </div>
      <a href="#"></a>
      <mat-dialog-actions fxLayoutAlign="space-around">
         <button mat-button [mat-dialog-close]="false" class="colors">No</button>
         <button mat-button [mat-dialog-close]="true" class="colors">Yes</button>
      </mat-dialog-actions>`,
   styles: [`
      .title {font-size: large;}
      .msg {font-size: medium;}
      .colors {color: white; background-color: #3f51b5;}
      button {flex-basis: 60px;}
   `]
})
export class ConfirmationDlgComponent {
   constructor(@Inject(MAT_DIALOG_DATA) public data: any) {}
}

Then we can use it in another module:

import {FlexLayoutModule} from '@angular/flex-layout';
import {NgModule} from '@angular/core';
import {GeneralComponent} from './general/general.component';
import {NgbModule} from '@ng-bootstrap/ng-bootstrap';
import {CommonModule} from '@angular/common';
import {MaterialModule} from '../../material.module';

@NgModule({
   declarations: [
      GeneralComponent
   ],
   imports: [
      FlexLayoutModule,
      MaterialModule,
      CommonModule,
      NgbModule.forRoot()
   ],
   providers: []
})
export class SystemAdminModule {}

The component's click handler uses the dialog:

import {Component} from '@angular/core';
import {ConfirmationDlgComponent} from '../../../shared/confirmation-dlg.component';
import {MatDialog} from '@angular/material';

@Component({
   selector: 'app-general',
   templateUrl: './general.component.html',
   styleUrls: ['./general.component.css']
})
export class GeneralComponent {

   constructor(private dialog: MatDialog) {}

   onWhateverClick() {
      const dlg = this.dialog.open(ConfirmationDlgComponent, {
         data: {title: 'Confirm Whatever', msg: 'Are you sure you want to whatever?'}
      });

      dlg.afterClosed().subscribe((whatever: boolean) => {
         if (whatever) {
            this.whatever();
         }
      });
   }

   whatever() {
      console.log('Do whatever');
   }
}

Just using the this.modal.open(MyComponent); as you did won't return you an object whose events you can subscribe to which is why you can't get it to do something. This code creates and opens a dialog whose events we can subscribe to.

If you trim back the css and html this is really a simple component, but writing it yourself gives you control over its design and layout whereas a pre-written component will need to be much more heavyweight to give you that control.

Client side

• Hixie-75:
  • Chrome 4.0 + 5.0
  • Safari 5.0.0
• HyBi-00/Hixie-76:
  • Chrome 6.0 - 13.0
  • Safari 5.0.2 + 5.1
  • iOS 4.2 + iOS 5
  • Firefox 4.0 - support for WebSockets disabled. To enable it see here.
  • Opera 11 - with support disabled. To enable it see here.
• HyBi-07+:
  • Chrome 14.0
  • Firefox 6.0 - prefixed: MozWebSocket
  • IE 9 - via downloadable Silverlight extension
• HyBi-10:
  • Chrome 14.0 + 15.0
  • Firefox 7.0 + 8.0 + 9.0 + 10.0 - prefixed: MozWebSocket
  • IE 10 (from Windows 8 developer preview)
• HyBi-17/RFC 6455
  • Chrome 16
  • Firefox 11
  • Opera 12.10 / Opera Mobile 12.1

Any browser with Flash can support WebSocket using the web-socket-js shim/polyfill.

See caniuse for the current status of WebSockets support in desktop and mobile browsers.

See the test reports from the WS testsuite included in Autobahn WebSockets for feature/protocol conformance tests.

Server side

It depends on which language you use.

In Java/Java EE:

• Jetty 7.0 supports it (very easy to use) V 7.5 supports RFC6455 - Jetty 9.1 supports javax.websocket / JSR 356)
• GlassFish 3.0 (very low level and sometimes complex), Glassfish 3.1 has new refactored Websocket Support which is more developer friendly V 3.1.2 supports RFC6455
• Caucho Resin 4.0.2 (not yet tried) V 4.0.25 supports RFC6455
• Tomcat 7.0.27 now supports it V 7.0.28 supports RFC6455
• Tomcat 8.x has native support for websockets RFC6455 and is JSR 356 compliant
• JSR 356 included in Java EE 7 will define the Java API for WebSocket, but is not yet stable and complete. See Arun GUPTA's article WebSocket and Java EE 7 - Getting Ready for JSR 356 (TOTD #181) and QCon presentation (from 00:37:36 to 00:46:53) for more information on progress. You can also look at Java websocket SDK.

Some other Java implementations:

• Kaazing Gateway
• jWebscoket
• Netty
• xLightWeb
• Webbit
• Atmosphere
• Grizzly
• Apache ActiveMQ V 5.6 supports RFC6455
• Apache Camel V 2.10 supports RFC6455
• JBoss HornetQ

In C#:

• XSockets.NET
• SuperWebSocket
• Nugget
• Alchemy-Websockets
• Fleck
• SignalR

In PHP:

• Ratchet
• phpwebsocket.
• Extendible Web Socket Server
• phpdaemon

In Python:

• pywebsockets
• websockify
• gevent-websocket, gevent-socketio and flask-sockets based on the former
• Autobahn
• Tornado

In C:

• libwebsockets

In Node.js:

• Socket.io : Socket.io also has serverside ports for Python, Java, Google GO, Rack
• sockjs : sockjs also has serverside ports for Python, Java, Erlang and Lua
• WebSocket-Node - Pure JavaScript Client & Server implementation of HyBi-10.

Vert.x (also known as Node.x) : A node like polyglot implementation running on a Java 7 JVM and based on Netty with :

• Support for Ruby(JRuby), Java, Groovy, Javascript(Rhino/Nashorn), Scala, ...
• True threading. (unlike Node.js)
• Understands multiple network protocols out of the box including: TCP, SSL, UDP, HTTP, HTTPS, Websockets, SockJS as fallback for WebSockets

Pusher.com is a Websocket cloud service accessible through a REST API.

DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS, Python, Ruby, PHP and Perl programming languages.

Openshift cloud platform supports websockets, and Java (Jboss, Spring, Tomcat & Vertx), PHP (ZendServer & CodeIgniter), Ruby (ROR), Node.js, Python (Django & Flask) plateforms.

For other language implementations, see the Wikipedia article for more information.

The RFC for Websockets : RFC6455

..extending Mikaels' answers

SELECT
  CASE WHEN ISNUMERIC(QTY + 'e0') = 1 THEN CAST(QTY AS float) ELSE null END AS MyFloat
  CASE WHEN ISNUMERIC(QTY + 'e0') = 0 THEN QTY ELSE null END AS MyVarchar
FROM
  ...

• Two data types requires two columns
• Adding e0 fixes some ISNUMERIC issues (such as + - . and empty string being accepted)

Use a loop

for(var i = 0; i < obj.length; ++i){
   //do something with obj[i]
   for(var ind in obj[i]) {
        console.log(ind);
        for(var vals in obj[i][ind]){
            console.log(vals, obj[i][ind][vals]);
        }
   }
}

Demo: http://jsfiddle.net/maniator/pngmL/

That error means that the compiler is not able to find the definition of the type of your struct before the declaration of the array of structs, since you're saying you have the definition of the struct in a header file and the error is in nbody.c then you should check if you're including correctly the header file. Check your #include's and make sure the definition of the struct is done before declaring any variable of that type.

For the benefit of searchers, there is another way you can produce this error message - by missing the $ off the script block name when calling it.

e.g. I had a script block like so:

$qa = {
    param($question, $answer)
    Write-Host "Question = $question, Answer = $answer"
}

I tried calling it using:

&qa -question "Do you like powershell?" -answer "Yes!"

But that errored. The correct way was:

&$qa -question "Do you like powershell?" -answer "Yes!"

I'll try to provide a comprehensive answer here. Much of the points appear in other answers, but I found each answer incomplete, and some incorrect.

First and foremost, objectForKey: is an NSDictionary method, while valueForKey: is a KVC protocol method required of any KVC complaint class - including NSDictionary.

Furthermore, as @dreamlax wrote, documentation hints that NSDictionary implements its valueForKey: method USING its objectForKey: implementation. In other words - [NSDictionary valueForKey:] calls on [NSDictionary objectForKey:].

This implies, that valueForKey: can never be faster than objectForKey: (on the same input key) although thorough testing I've done imply about 5% to 15% difference, over billions of random access to a huge NSDictionary. In normal situations - the difference is negligible.

Next: KVC protocol only works with NSString * keys, hence valueForKey: will only accept an NSString * (or subclass) as key, whilst NSDictionary can work with other kinds of objects as keys - so that the "lower level" objectForKey: accepts any copy-able (NSCopying protocol compliant) object as key.

Last, NSDictionary's implementation of valueForKey: deviates from the standard behavior defined in KVC's documentation, and will NOT emit a NSUnknownKeyException for a key it can't find - unless this is a "special" key - one that begins with '@' - which usually means an "aggregation" function key (e.g. @"@sum, @"@avg"). Instead, it will simply return a nil when a key is not found in the NSDictionary - behaving the same as objectForKey:

Following is some test code to demonstrate and prove my notes.

- (void) dictionaryAccess {
    NSLog(@"Value for Z:%@", [@{@"X":@(10), @"Y":@(20)} valueForKey:@"Z"]); // prints "Value for Z:(null)"

    uint32_t testItemsCount = 1000000;
    // create huge dictionary of numbers
    NSMutableDictionary *d = [NSMutableDictionary dictionaryWithCapacity:testItemsCount];
    for (long i=0; i<testItemsCount; ++i) {
        // make new random key value pair:
        NSString *key = [NSString stringWithFormat:@"K_%u",arc4random_uniform(testItemsCount)];
        NSNumber *value = @(arc4random_uniform(testItemsCount));
        [d setObject:value forKey:key];
    }
    // create huge set of random keys for testing.
    NSMutableArray *keys = [NSMutableArray arrayWithCapacity:testItemsCount];
    for (long i=0; i<testItemsCount; ++i) {
        NSString *key = [NSString stringWithFormat:@"K_%u",arc4random_uniform(testItemsCount)];
        [keys addObject:key];
    }

    NSDictionary *dict = [d copy];
    NSTimeInterval vtotal = 0.0, ototal = 0.0;

    NSDate *start;
    NSTimeInterval elapsed;

    for (int i = 0; i<10; i++) {

        start = [NSDate date];
        for (NSString *key in keys) {
            id value = [dict valueForKey:key];
        }
        elapsed = [[NSDate date] timeIntervalSinceDate:start];
        vtotal+=elapsed;
        NSLog (@"reading %lu values off dictionary via valueForKey took: %10.4f seconds", keys.count, elapsed);

        start = [NSDate date];
        for (NSString *key in keys) {
            id obj = [dict objectForKey:key];
        }
        elapsed = [[NSDate date] timeIntervalSinceDate:start];
        ototal+=elapsed;
        NSLog (@"reading %lu objects off dictionary via objectForKey took: %10.4f seconds", keys.count, elapsed);
    }

    NSString *slower = (vtotal > ototal) ? @"valueForKey" : @"objectForKey";
    NSString *faster = (vtotal > ototal) ? @"objectForKey" : @"valueForKey";
    NSLog (@"%@ takes %3.1f percent longer then %@", slower, 100.0 * ABS(vtotal-ototal) / MAX(ototal,vtotal), faster);
}

I'm not sure, but I believe it is a debugging optimization. However, I usually turn it off (see Debug properties for the project) and I don't notice any slowdown and I see no limitations when it comes to debugging.

I removed the bugs in above code and got below results: Also I am unsure given how NetSerializer requires you to register the types you are serializing, what kind of compatibility or performance differences that could potentially make.

Generating 100000 arrays of data...
Test data generated.
Testing BinarySerializer...
BinaryFormatter: Serializing took 508.9773ms.
BinaryFormatter: Deserializing took 371.8499ms.

Testing ProtoBuf serializer...
ProtoBuf: Serializing took 3280.9185ms.
ProtoBuf: Deserializing took 3190.7899ms.

Testing NetSerializer serializer...
NetSerializer: Serializing took 427.1241ms.
NetSerializer: Deserializing took 78.954ms.
Press any key to end.

Modified Code

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;

namespace SerializationTests
{
    class Program
    {
        static void Main(string[] args)
        {
            var count = 100000;
            var rnd = new Random((int)DateTime.UtcNow.Ticks & 0xFF);
            Console.WriteLine("Generating {0} arrays of data...", count);
            var arrays = new List<int[]>();
            for (int i = 0; i < count; i++)
            {
                var elements = rnd.Next(1, 100);
                var array = new int[elements];
                for (int j = 0; j < elements; j++)
                {
                    array[j] = rnd.Next();
                }
                arrays.Add(array);
            }
            Console.WriteLine("Test data generated.");
            var stopWatch = new Stopwatch();

            Console.WriteLine("Testing BinarySerializer...");
            var binarySerializer = new BinarySerializer();
            var binarySerialized = new List<byte[]>();
            var binaryDeserialized = new List<int[]>();

            stopWatch.Reset();
            stopWatch.Start();
            foreach (var array in arrays)
            {
                binarySerialized.Add(binarySerializer.Serialize(array));
            }
            stopWatch.Stop();
            Console.WriteLine("BinaryFormatter: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);

            stopWatch.Reset();
            stopWatch.Start();
            foreach (var serialized in binarySerialized)
            {
                binaryDeserialized.Add(binarySerializer.Deserialize<int[]>(serialized));
            }
            stopWatch.Stop();
            Console.WriteLine("BinaryFormatter: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);


            Console.WriteLine();
            Console.WriteLine("Testing ProtoBuf serializer...");
            var protobufSerializer = new ProtoBufSerializer();
            var protobufSerialized = new List<byte[]>();
            var protobufDeserialized = new List<int[]>();

            stopWatch.Reset();
            stopWatch.Start();
            foreach (var array in arrays)
            {
                protobufSerialized.Add(protobufSerializer.Serialize(array));
            }
            stopWatch.Stop();
            Console.WriteLine("ProtoBuf: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);

            stopWatch.Reset();
            stopWatch.Start();
            foreach (var serialized in protobufSerialized)
            {
                protobufDeserialized.Add(protobufSerializer.Deserialize<int[]>(serialized));
            }
            stopWatch.Stop();
            Console.WriteLine("ProtoBuf: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);

            Console.WriteLine();
            Console.WriteLine("Testing NetSerializer serializer...");
            var netSerializerSerialized = new List<byte[]>();
            var netSerializerDeserialized = new List<int[]>();

            stopWatch.Reset();
            stopWatch.Start();
            var netSerializerSerializer = new NS();
            foreach (var array in arrays)
            {
                netSerializerSerialized.Add(netSerializerSerializer.Serialize(array));
            }
            stopWatch.Stop();
            Console.WriteLine("NetSerializer: Serializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);

            stopWatch.Reset();
            stopWatch.Start();
            foreach (var serialized in netSerializerSerialized)
            {
                netSerializerDeserialized.Add(netSerializerSerializer.Deserialize<int[]>(serialized));
            }
            stopWatch.Stop();
            Console.WriteLine("NetSerializer: Deserializing took {0}ms.", stopWatch.Elapsed.TotalMilliseconds);

            Console.WriteLine("Press any key to end.");
            Console.ReadKey();
        }

        public class BinarySerializer
        {
            private static readonly BinaryFormatter Formatter = new BinaryFormatter();

            public byte[] Serialize(object toSerialize)
            {
                using (var stream = new MemoryStream())
                {
                    Formatter.Serialize(stream, toSerialize);
                    return stream.ToArray();
                }
            }

            public T Deserialize<T>(byte[] serialized)
            {
                using (var stream = new MemoryStream(serialized))
                {
                    var result = (T)Formatter.Deserialize(stream);
                    return result;
                }
            }
        }

        public class ProtoBufSerializer
        {
            public byte[] Serialize(object toSerialize)
            {
                using (var stream = new MemoryStream())
                {
                    ProtoBuf.Serializer.Serialize(stream, toSerialize);
                    return stream.ToArray();
                }
            }

            public T Deserialize<T>(byte[] serialized)
            {
                using (var stream = new MemoryStream(serialized))
                {
                    var result = ProtoBuf.Serializer.Deserialize<T>(stream);
                    return result;
                }
            }
        }

        public class NS
        {
            NetSerializer.Serializer Serializer = new NetSerializer.Serializer(new Type[] { typeof(int), typeof(int[]) });

            public byte[] Serialize(object toSerialize)
            {
                using (var stream = new MemoryStream())
                {
                    Serializer.Serialize(stream, toSerialize);
                    return stream.ToArray();
                }
            }

            public T Deserialize<T>(byte[] serialized)
            {
                using (var stream = new MemoryStream(serialized))
                {
                    Serializer.Deserialize(stream, out var result);
                    return (T)result;
                }
            }
        }
    }
}

double a = 1.000001;
double b = 0.000001;

System.out.println( a.compareTo(b) );

Returns:

• -1 : 'a' is numerically less than 'b'.

• 0 : 'a' is equal to 'b'.

• 1 : 'a' is greater than 'b'.

The alpha channel defines the transparency value of a color, so any color is 100% transparent as long as the alpha value is 0. Typically this four-channel color type is known as RGBA.

You can specify RGBA in CSS like so:

div {
    background: rgba(200, 54, 54, 0.5); /* 50% transparent */
}

Note that not all browsers support RGBA, in which case you can specify a fallback:

div {
    background: rgb(200, 54, 54); /* fallback */
    background: rgba(200, 54, 54, 0.5); /* 50% transparent */
}

More information regarding browser support and workarounds can be found here.

If you want to work over APIs you have to do inside your DialogFragemnt->onStart and not inside onCreateDialog

@Override
    public void onStart() 
    {
        if (getDialog() == null) 
        {
            return;
        }

        getDialog().getWindow().setWindowAnimations(
                  R.style.DlgAnimation);

        super.onStart();
    }

I would prefere

if (!myStr.empty())
{
    //do something
}

Also you don't have to write std::string a = "";. You can just write std::string a; - it will be empty by default

If you have a cancel button on your form, you can set the Form.CancelButton property to that button and then pressing escape will effectively 'click the button'.

If you don't have such a button, check out the Form.KeyPreview property.

Under Linux PostgresQL is usually configured to allow the root user to login as the postgres superuser postgres from the shell (console or ssh).

$ psql -U postgres

Then you would just create a new database as usual:

CREATE ROLE myuser LOGIN password 'secret';
CREATE DATABASE mydatabase ENCODING 'UTF8' OWNER myuser;

This should work without touching pg_hba.conf. If you want to be able to do this using some GUI tool over the network - then you would need to mess with pg_hba.conf.

Today, I have used this feature, so here's my very fresh real-life example. (I have changed class and method names to generic ones so they won't distract from the actual point.)

I have a method that's meant to accept a Set of A objects that I originally wrote with this signature:

void myMethod(Set<A> set)

But it want to actually call it with Sets of subclasses of A. But this is not allowed! (The reason for that is, myMethod could add objects to set that are of type A, but not of the subtype that set's objects are declared to be at the caller's site. So this could break the type system if it were possible.)

Now here come generics to the rescue, because it works as intended if I use this method signature instead:

<T extends A> void myMethod(Set<T> set)

or shorter, if you don't need to use the actual type in the method body:

void myMethod(Set<? extends A> set)

This way, set's type becomes a collection of objects of the actual subtype of A, so it becomes possible to use this with subclasses without endangering the type system.

If you just want a very quick way to debug the result:

$ch = curl_init();
curl_exec($ch);
$curl_error = curl_error($ch);
echo "<script>console.log($curl_error);</script>"

You can pass a mutable container datatype into a function, and it can contain anything you want.

If you need a different functionality, name the functions differently, or if you need the same interface, just write an interface function (or method) that calls the functions appropriately based on the data received.

It took a while to me to get adjusted to this coming from Java, but it really isn't a "big handicap".

In terms of how this is implemented, this changes the method - from OrderBy/ThenBy to OrderByDescending/ThenByDescending. However, you can apply the sort separately to the main query...

var qry = from .... // or just dataList.AsEnumerable()/AsQueryable()

if(sortAscending) {
    qry = qry.OrderBy(x=>x.Property);
} else {
    qry = qry.OrderByDescending(x=>x.Property);
}

Any use? You can create the entire "order" dynamically, but it is more involved...

Another trick (mainly appropriate to LINQ-to-Objects) is to use a multiplier, of -1/1. This is only really useful for numeric data, but is a cheeky way of achieving the same outcome.

Use plt.text() to put text in the plot.

Example:

import matplotlib.pyplot as plt
N = 5
menMeans = (20, 35, 30, 35, 27)
ind = np.arange(N)

#Creating a figure with some fig size
fig, ax = plt.subplots(figsize = (10,5))
ax.bar(ind,menMeans,width=0.4)
#Now the trick is here.
#plt.text() , you need to give (x,y) location , where you want to put the numbers,
#So here index will give you x pos and data+1 will provide a little gap in y axis.
for index,data in enumerate(menMeans):
    plt.text(x=index , y =data+1 , s=f"{data}" , fontdict=dict(fontsize=20))
plt.tight_layout()
plt.show()

This will show the figure as:

If you don't want Vim to mangle formatting in incoming pasted text, you might also want to consider using: :set paste. This will prevent Vim from re-tabbing your code. When done pasting, :set nopaste will return to the normal behavior.

It's also possible to toggle the mode with a single key, by adding something like set pastetoggle=<F2> to your .vimrc. More details on toggling auto-indent are here.

Now there are a lot of cloud providers , providing solutions like MBaaS (Mobile Backend as a Service). Some only give access to cloud database, some will do the user management for you, some let you place code around cloud database and there are facilities of access control, push notifications, analytics, integrated image and file hosting etc.

Here are some providers which have a "free-tier" (may change in future):

1. Firebase (Google) - https://firebase.google.com/
2. AWS Mobile (Amazon) - https://aws.amazon.com/mobile/
3. Azure Mobile (Microsoft) - https://azure.microsoft.com/en-in/services/app-service/mobile/
4. MongoDB Realm (MongoDB) - https://www.mongodb.com/realm
5. Back4app (Popular) - https://www.back4app.com/

Open source solutions:

1. Parse - http://parseplatform.org/
2. Apache User Grid - https://usergrid.apache.org/
3. SupaBase (under development) - https://supabase.io/

If you are using react-redux for your application and if you want to show data which is in the redux store, you can set "checked" option as below.

<label>Male</label>

 <input
   type="radio"
   name="gender"
   defaultChecked={this.props.gender == "0"}
 />



 <label>Female</label>
 <input
   type="radio"
   name="gender"
   defaultChecked={this.props.gender == "1"}
 />

With list slicing, see the Python tutorial about lists for more details:

>>> l = [0, 1, 2, 3, 4]
>>> l[1:]
[1, 2, 3, 4]

First thing, define a type or interface for your object, it will make things much more readable:

type Product = { productId: number; price: number; discount: number };

You used a tuple of size one instead of array, it should look like this:

let myarray: Product[];
let priceListMap : Map<number, Product[]> = new Map<number, Product[]>();

So now this works fine:

myarray.push({productId : 1 , price : 100 , discount : 10});
myarray.push({productId : 2 , price : 200 , discount : 20});
myarray.push({productId : 3 , price : 300 , discount : 30});
priceListMap.set(1 , this.myarray);
myarray = null;

(code in playground)

Why not keep it simple?

var parseBool = function(str) {
    if (typeof str === 'string' && str.toLowerCase() == 'true')
            return true;

    return (parseInt(str) > 0);
}