Programs & Examples On #Armadillo

Here's a Boolean thing:

if (not suffix == "flac" )  or (not suffix == "cue" ):   # WRONG! FAILS
    print  filename + ' is not a flac or cue file'

but

if not (suffix == "flac"  or suffix == "cue" ):     # CORRECT!
       print  filename + ' is not a flac or cue file'

(not a) or (not b) == not ( a and b ) , is false only if a and b are both true

not (a or b) is true only if a and be are both false.

Had made just a small change to @anthony code so we can get nicely formatted output with argument numbers and values. Somehow easier to read on output when you have multiple arguments:

#include <stdio.h>

int main(int argc, char *argv[])
{
    printf("The following arguments were passed to main():\n");
    printf("argnum \t value \n");
    for (int i = 0; i<argc; i++) printf("%d \t %s \n", i, argv[i]);
    printf("\n");

    return 0;
} 

And output is similar to:

The following arguments were passed to main():
0        D:\Projects\test\vcpp\bcppcomp1\Debug\bcppcomp.exe
1        -P
2        TestHostAttoshiba
3        _http._tcp
4        local
5        80
6        MyNewArgument
7        200.124.211.235
8        type=NewHost
9        test=yes
10       result=output

At first glance...

All you need is a GROUP BY clause with the MAX aggregate function:

SELECT id, MAX(rev)
FROM YourTable
GROUP BY id

It's never that simple, is it?

I just noticed you need the content column as well.

This is a very common question in SQL: find the whole data for the row with some max value in a column per some group identifier. I heard that a lot during my career. Actually, it was one the questions I answered in my current job's technical interview.

It is, actually, so common that StackOverflow community has created a single tag just to deal with questions like that: greatest-n-per-group.

Basically, you have two approaches to solve that problem:

Joining with simple group-identifier, max-value-in-group Sub-query

In this approach, you first find the group-identifier, max-value-in-group (already solved above) in a sub-query. Then you join your table to the sub-query with equality on both group-identifier and max-value-in-group:

SELECT a.id, a.rev, a.contents
FROM YourTable a
INNER JOIN (
    SELECT id, MAX(rev) rev
    FROM YourTable
    GROUP BY id
) b ON a.id = b.id AND a.rev = b.rev

Left Joining with self, tweaking join conditions and filters

In this approach, you left join the table with itself. Equality goes in the group-identifier. Then, 2 smart moves:

1. The second join condition is having left side value less than right value
2. When you do step 1, the row(s) that actually have the max value will have NULL in the right side (it's a LEFT JOIN, remember?). Then, we filter the joined result, showing only the rows where the right side is NULL.

So you end up with:

SELECT a.*
FROM YourTable a
LEFT OUTER JOIN YourTable b
    ON a.id = b.id AND a.rev < b.rev
WHERE b.id IS NULL;

Conclusion

Both approaches bring the exact same result.

If you have two rows with max-value-in-group for group-identifier, both rows will be in the result in both approaches.

Both approaches are SQL ANSI compatible, thus, will work with your favorite RDBMS, regardless of its "flavor".

Both approaches are also performance friendly, however your mileage may vary (RDBMS, DB Structure, Indexes, etc.). So when you pick one approach over the other, benchmark. And make sure you pick the one which make most of sense to you.

Without favouring any particular naming choice, remember that a git repo can be cloned into any root directory of your choice:

git clone https://github.com/user/repo.git myDir

Here repo.git would be cloned into the myDir directory.

So even if your naming convention for a public repo ended up to be slightly incorrect, it would still be possible to fix it on the client side.

That is why, in a distributed environment where any client can do whatever he/she wants, there isn't really a naming convention for Git repo.
(except to reserve "xxx.git" for bare form of the repo 'xxx')
There might be naming convention for REST service (similar to "Are there any naming convention guidelines for REST APIs?"), but that is a separate issue.

Here is an easy way to detect the device orientation: (Swift 3)

override func willRotate(to toInterfaceOrientation: UIInterfaceOrientation, duration: TimeInterval) {
            handleViewRotaion(orientation: toInterfaceOrientation)
        }

    //MARK: - Rotation controls
    func handleViewRotaion(orientation:UIInterfaceOrientation) -> Void {
        switch orientation {
        case .portrait :
            print("portrait view")
            break
        case .portraitUpsideDown :
            print("portraitUpsideDown view")
            break
        case .landscapeLeft :
            print("landscapeLeft view")
            break
        case .landscapeRight :
            print("landscapeRight view")
            break
        case .unknown :
            break
        }
    }

" the user is the one who select max no and min no ?" What do you mean by this line ?

You can use java function int random = Random.nextInt(n). This returns a random int in range[0, n-1]).

and you can set it in your textview using the setText() method

All you need is System.Environment.Exit(1);

And it uses the system namespace "using System" that's pretty much always there when you start a project.

public void UploadFtpFile(string folderName, string fileName)
{

    FtpWebRequest request;

    string folderName; 
    string fileName;
    string absoluteFileName = Path.GetFileName(fileName);

    request = WebRequest.Create(new Uri(string.Format(@"ftp://{0}/{1}/{2}", "127.0.0.1", folderName, absoluteFileName))) as FtpWebRequest;
    request.Method = WebRequestMethods.Ftp.UploadFile;
    request.UseBinary = 1;
    request.UsePassive = 1;
    request.KeepAlive = 1;
    request.Credentials =  new NetworkCredential(user, pass);
    request.ConnectionGroupName = "group"; 

    using (FileStream fs = File.OpenRead(fileName))
    {
        byte[] buffer = new byte[fs.Length];
        fs.Read(buffer, 0, buffer.Length);
        fs.Close();
        Stream requestStream = request.GetRequestStream();
        requestStream.Write(buffer, 0, buffer.Length);
        requestStream.Flush();
        requestStream.Close();
    }
}

How to use

UploadFtpFile("testFolder", "E:\\filesToUpload\\test.img");

use this in your foreach

and you only need to create folder one time

to create a folder

request = WebRequest.Create(new Uri(string.Format(@"ftp://{0}/{1}/", "127.0.0.1", "testFolder"))) as FtpWebRequest;
request.Method = WebRequestMethods.Ftp.MakeDirectory;
FtpWebResponse ftpResponse = (FtpWebResponse)request.GetResponse();

>>> dict([('hi','goodbye')])
{'hi': 'goodbye'}

Or:

>>> [ dict([i]) for i in (('CSCO', 21.14), ('CSCO', 21.14), ('CSCO', 21.14), ('CSCO', 21.14)) ]
[{'CSCO': 21.14}, {'CSCO': 21.14}, {'CSCO': 21.14}, {'CSCO': 21.14}]

Arrays.toString is formatting the output (added the brackets and commas). you should implement your own method of toString.

public String toString(String[] arr){
    String result = "";
    for(String s : arr)
        result+=s;
    return result;
}

[edit] Stringbuilder is better though. see above.

I agree with the answers, a simple way if you want to find an object by id and remove it is simply like below code.

   var obj = JSON.parse(data);
   var newObj = obj.filter(item=>item.Id!=88);
       

The magic you have been looking for has been added in Rails 6 Now you can upsert (update or insert). For single record use:

Model.upsert(column_name: value)

For multiple records use upsert_all :

Model.upsert_all(column_name: value, unique_by: :column_name)

Note:

• Both methods do not trigger Active Record callbacks or validations
• unique_by => PostgreSQL and SQLite only

The ALL_DIRECTORIES data dictionary view will have information about all the directories that you have access to. That includes the operating system path

SELECT owner, directory_name, directory_path
  FROM all_directories

There is a module on npm called mssqlhelper

You can install it to your project by npm i mssqlhelper

Example of connecting and performing a query:

var db = require('./index');

db.config({
    host: '192.168.1.100'
    ,port: 1433
    ,userName: 'sa'
    ,password: '123'
    ,database:'testdb'
});

db.query(
    'select @Param1 Param1,@Param2 Param2'
    ,{
         Param1: { type : 'NVarChar', size: 7,value : 'myvalue' }
         ,Param2: { type : 'Int',value : 321 }
    }
    ,function(res){
        if(res.err)throw new Error('database error:'+res.err.msg);
        var rows = res.tables[0].rows;
        for (var i = 0; i < rows.length; i++) {
            console.log(rows[i].getValue(0),rows[i].getValue('Param2'));
        }
    }
);

You can read more about it here: https://github.com/play175/mssqlhelper

:o)

The 51Degrees beta, 1.0.1.6 and the latest stable release 1.0.2.2 (4/28/2011) now have the ability to sniff for tablet. Basically along the lines of:

string capability = Request.Browser["is_tablet"];

Hope this helps you.

The right mental model for using mutexes: The mutex protects an invariant.

Why are you sure that this is really right mental model for using mutexes? I think right model is protecting data but not invariants.

The problem of protecting invariants presents even in single-threaded applications and has nothing common with multi-threading and mutexes.

Furthermore, if you need to protect invariants, you still may use binary semaphore wich is never recursive.

GOT THE SOLUTION AFTER ALOT OF TIME GOOGLING

just get your ic_launcher and paste it in your drawables folder,

Go to your manifest and change android:icon="@drawable/ic_launcher"

Clean your project and rebuild

Hope it helps you

You can use these to factor out code common to all tests in the test suite.

If you have a lot of repeated code in your tests, you can make them shorter by moving this code to setUp/tearDown.

You might use this for creating test data (e.g. setting up fakes/mocks), or stubbing out functions with fakes.

If you're doing integration testing, you can use check environmental pre-conditions in setUp, and skip the test if something isn't set up properly.

For example:

class TurretTest(unittest.TestCase):

    def setUp(self):
        self.turret_factory = TurretFactory()
        self.turret = self.turret_factory.CreateTurret()

    def test_turret_is_on_by_default(self):
        self.assertEquals(True, self.turret.is_on())

    def test_turret_turns_can_be_turned_off(self):
        self.turret.turn_off()
        self.assertEquals(False, self.turret.is_on())

In you use spring boot with Angular ; make sure that whether you create default

Drupal 7 also has an easy solution here, this will allow you to validate against multiple countries.

https://drupal.org/project/postal_code_validation

You will need this module as well
https://drupal.org/project/postal_code

Test it in http://simplytest.me/

The C standard (actually C99, I'm not up to date) says:

Alphabetic escape sequences representing nongraphic characters in the execution character set are intended to produce actions on display devices as follows:

\b (backspace) Moves the active position to the previous position on the current line. [...]

\t (horizontal tab) Moves the active position to the next horizontal tabulation position on the current line. [...]

Both just move the active position, neither are supposed to write any character on or over another character. To overwrite with a space you could try: puts("foo\b \tbar"); but note that on some display devices - say a daisy wheel printer - the o will show the transparent space.

Below code will only allow numbers "0123456789”, even if you accidentally type other than "0123456789”, edit text will not accept.

    EditText number1 = (EditText) layout.findViewById(R.id.edittext); 
    number1.setInputType(InputType.TYPE_CLASS_NUMBER|InputType.TYPE_CLASS_PHONE);
    number1.setKeyListener(DigitsKeyListener.getInstance("0123456789”));

Here's another way to force a type-cast even between incompatible types and interfaces where TS compiler normally complains:

export function forceCast<T>(input: any): T {

  // ... do runtime checks here

  // @ts-ignore <-- forces TS compiler to compile this as-is
  return input;
}

Then you can use it to force cast objects to a certain type:

import { forceCast } from './forceCast';

const randomObject: any = {};
const typedObject = forceCast<IToDoDto>(randomObject);

Note that I left out the part you are supposed to do runtime checks before casting for the sake of reducing complexity. What I do in my project is compiling all my .d.ts interface files into JSON schemas and using ajv to validate in runtime.

In my case (IntelliJ 2020-02, Kotlin dev) JUnit library was already included by Create project wizard. I needed to enable JUnit plugin:

to get green Run test icons next to each test class and method:

and CTRL+Shift+R will run test under caret, and CTRL+shift+D to debug.

shortest Bootstrap-compatible way, no JavaScript:

.cameraicon {
height: 1.6em;/* set your own icon size */
mask: url(/camera.svg); /* path to your image */
-webkit-mask: url(/camera.svg) no-repeat center;
}

and use it like:

<td class="text-center">
    <div class="bg-secondary cameraicon"/><!-- "bg-secondary" sets actual color of your icon -->
</td>

Just wanted to say Magnus' answer above did it for me, but for the second "overlay" that needs to be "overflow"

helpers : {
  overlay : {
    css : { 'overflow' : 'hidden' }
  }
}

When we apply local url, ErrorDocument directive expect the full path from DocumentRoot. There fore,

 ErrorDocument 404 /yourfoldernames/errors/404.html

As I have already explained the reasons behind this issue and also how to handle it in a different answer thread Here. Still i am sharing the solution summary here.

One of the main reasons notifyDataSetChanged() won't work for you - is,

Your adapter loses reference to your list.

When creating and adding a new list to the Adapter. Always follow these guidelines:

1. Initialise the arrayList while declaring it globally.
2. Add the List to the adapter directly with out checking for null and empty values . Set the adapter to the list directly (don't check for any condition). Adapter guarantees you that wherever you make changes to the data of the arrayList it will take care of it, but never loose the reference.
3. Always modify the data in the arrayList itself (if your data is completely new than you can call adapter.clear() and arrayList.clear() before actually adding data to the list) but don't set the adapter i.e If the new data is populated in the arrayList than just adapter.notifyDataSetChanged()

Hope this helps.

For IntelliJ 13, there is a checkbox in Editor's page in IDE Settings

EDIT: For IntelliJ 14, the option has been moved to Editor > General page. It's the last option in the "Other" group. (For Mac the option is under the menu "IntelliJ Idea" > "Preferences").

EDIT: For IntelliJ 16, it's the second-to-last option in Editor > General > Other.

EDIT: For IntelliJ Ultimate 2016.1, it's been moved to Editor > General > Code Completion.

EDIT: For IntelliJ Ultimate 2017.2, aka IntelliJ IDEA 2017.2.3, there are actually two options:

1. In Editor > General > Other (section) > Show quick documentation on mouse move - delay 500 ms

• Select this check box to show quick documentation for the symbol at caret. The quick documentation pop-up window appears after the specified delay.

1. In Editor > General > Code Completion (sub-item) > Autopopup documention in 1000 ms, for explicitly invoked completion

• Select this check box to have IntelliJ IDEA automatically show a pop-up window with the documentation for the class, method, or field currently highlighted in the lookup list. If this check box is not selected, use Ctrl+Q to show quick documentation for the element at caret.
• Quick documentation window will automatically pop up with the specified delay in those cases only, when code completion has been invoked explicitly. For the automatic code completion list, documentation window will only show up on pressing Ctrl+Q.

EDIT: For IntelliJ Ultimate 2020.3, the first option is now located under Editor > Code Editing > Quick Documentation > Show quick documentation on mouse move

In the words of Knuth, "premature optimization is the root of all evil!" The small defference either way will most likely not have much of an effect in the end; I'd choose the more readable one.

Check if the file path is correct and the file exists - in my case that was the issue - as I fixed it, the error disappeared

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

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

NOW() normally works in SQL statements and returns the date and time. Check if your database field has the correct type (datetime). Otherwise, you can always use the PHP date() function and insert:

date('Y-m-d H:i:s')

But I wouldn't recommend this.

In order to move a View anywhere on the screen, I would recommend placing it in a full screen layout. By doing so, you won't have to worry about clippings or relative coordinates.

You can try this sample code:

main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" android:id="@+id/rootLayout">

    <Button
        android:id="@+id/btn1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="MOVE" android:layout_centerHorizontal="true"/>

    <ImageView
        android:id="@+id/img1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="10dip"/>
    <ImageView
        android:id="@+id/img2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_centerVertical="true" android:layout_alignParentRight="true"/>
    <ImageView
        android:id="@+id/img3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_alignParentBottom="true" android:layout_marginBottom="100dip"/>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical" android:clipChildren="false" android:clipToPadding="false">

        <ImageView
            android:id="@+id/img4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_launcher" android:layout_marginLeft="60dip" android:layout_marginTop="150dip"/>
    </LinearLayout>

</RelativeLayout>

Your activity

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ((Button) findViewById( R.id.btn1 )).setOnClickListener( new OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            ImageView img = (ImageView) findViewById( R.id.img1 );              
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img2 );
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img3 );                
            moveViewToScreenCenter( img );
            img = (ImageView) findViewById( R.id.img4 );
            moveViewToScreenCenter( img );
        }
    });
}

private void moveViewToScreenCenter( View view )
{
    RelativeLayout root = (RelativeLayout) findViewById( R.id.rootLayout );
    DisplayMetrics dm = new DisplayMetrics();
    this.getWindowManager().getDefaultDisplay().getMetrics( dm );
    int statusBarOffset = dm.heightPixels - root.getMeasuredHeight();

    int originalPos[] = new int[2];
    view.getLocationOnScreen( originalPos );

    int xDest = dm.widthPixels/2;
    xDest -= (view.getMeasuredWidth()/2);
    int yDest = dm.heightPixels/2 - (view.getMeasuredHeight()/2) - statusBarOffset;

    TranslateAnimation anim = new TranslateAnimation( 0, xDest - originalPos[0] , 0, yDest - originalPos[1] );
    anim.setDuration(1000);
    anim.setFillAfter( true );
    view.startAnimation(anim);
}

The method moveViewToScreenCenter gets the View's absolute coordinates and calculates how much distance has to move from its current position to reach the center of the screen. The statusBarOffset variable measures the status bar height.

I hope you can keep going with this example. Remember that after the animation your view's position is still the initial one. If you tap the MOVE button again and again the same movement will repeat. If you want to change your view's position do it after the animation is finished.

Well you can try to open the built-in application Android Maps by using the Intent.setClassName method.

Intent i = new Intent(Intent.ACTION_VIEW,Uri.parse("geo:37.827500,-122.481670"));
i.setClassName("com.google.android.apps.maps",
    "com.google.android.maps.MapsActivity");
startActivity(i);

You should read the documentation on storing stuff externally on Android. There's a multitude of problems that could exist with your current code, and I think going over the documentation might help you iron them out.

I tried all these options posted here on my project and they would not work. I thought it could be to do with the fact I had updated my Xcode and then the app to iOS 7 and some settings had got messed up somewhere. I decided To build a completely new project for it and after simple just setting: "Status bar is initially hidden = YES" and "View controller-based status bar appearance = NO" as stated by many others it worked correctly (i.e. no status bar).

So my advice if you are working on a project which has been updated to iOS 7 from an old version and have tried all other options is to build a new project.

Mostly READABILITY. When reading others code, it is much more intuitive to read as NOT CONTAINS KEY !values.containsKey(NoteColumns.CREATED_DATE) instead of reading CONTAINS KEY IS FALSE (values.containsKey(NoteColumns.CREATED_DATE) == false).

The plus sign is the historic encoding for a space character in URL parameters, as documented in the help for the urlencode() function.

That same page contains the answer you need - use rawurlencode() instead to get RFC 3986 compatible encoding.

There is difference between both $(this).closest('div') and $(this).parents('div').eq(0)

Basically closest start matching element from the current element whereas parents start matching elements from parent (one level above the current element)

See http://jsfiddle.net/imrankabir/c1jhocre/1/

Thanx to @Jota.Toledo, I got the solution for my table creation. Please find the working code below:

component.html

<mat-table #table [dataSource]="dataSource" matSort>
  <ng-container matColumnDef="{{column.id}}" *ngFor="let column of columnNames">
    <mat-header-cell *matHeaderCellDef mat-sort-header> {{column.value}}</mat-header-cell>
    <mat-cell *matCellDef="let element"> {{element[column.id]}}</mat-cell>
  </ng-container>

  <mat-header-row *matHeaderRowDef="displayedColumns"></mat-header-row>
  <mat-row *matRowDef="let row; columns: displayedColumns;"></mat-row>
</mat-table>

component.ts

import { Component, OnInit, ViewChild } from '@angular/core';
import { MatTableDataSource, MatSort } from '@angular/material';
import { DataSource } from '@angular/cdk/table';

@Component({
  selector: 'app-m',
  templateUrl: './m.component.html',
  styleUrls: ['./m.component.css'],
})
export class MComponent implements OnInit {

  dataSource;
  displayedColumns = [];
  @ViewChild(MatSort) sort: MatSort;

  /**
   * Pre-defined columns list for user table
   */
  columnNames = [{
    id: 'position',
    value: 'No.',

  }, {
    id: 'name',
    value: 'Name',
  },
    {
      id: 'weight',
      value: 'Weight',
    },
    {
      id: 'symbol',
      value: 'Symbol',
    }];

  ngOnInit() {
    this.displayedColumns = this.columnNames.map(x => x.id);
    this.createTable();
  }

  createTable() {
    let tableArr: Element[] = [{ position: 1, name: 'Hydrogen', weight: 1.0079, symbol: 'H' },
      { position: 2, name: 'Helium', weight: 4.0026, symbol: 'He' },
      { position: 3, name: 'Lithium', weight: 6.941, symbol: 'Li' },
      { position: 4, name: 'Beryllium', weight: 9.0122, symbol: 'Be' },
      { position: 5, name: 'Boron', weight: 10.811, symbol: 'B' },
      { position: 6, name: 'Carbon', weight: 12.0107, symbol: 'C' },
    ];
    this.dataSource = new MatTableDataSource(tableArr);
    this.dataSource.sort = this.sort;
  }
}

export interface Element {
  position: number,
  name: string,
  weight: number,
  symbol: string
}

app.module.ts

imports: [
  MatSortModule,
  MatTableModule,
],

Something I came upon while trying to work a spinner was to allow for flexibility within the script without the use of a ton of if statements.

Since this is a simpler solution than iterating through an array to check for a single instance of a class present it keeps the script cleaner. Any suggestions for cleaning the code further are welcome.

$('.next').click(function(){
        var imageToSlide = $('#imageSprite'); // Get id of image

        switch(true) {
            case (imageToSlide.hasClass('pos1')):
                imageToSlide.removeClass('pos1').addClass('pos2');
                break;
            case (imageToSlide.hasClass('pos2')):
                imageToSlide.removeClass('pos2').addClass('pos3');
                break;
            case (imageToSlide.hasClass('pos3')):
                imageToSlide.removeClass('pos3').addClass('pos4');
                break;
            case (imageToSlide.hasClass('pos4')):
                imageToSlide.removeClass('pos4').addClass('pos1');
        }
    }); ` 

If like me you came here to look for an alternate to shuf for macOS then use randomize-lines.

Install randomize-lines(homebrew) package, which has an rl command which has similar functionality to shuf.

brew install randomize-lines

Usage: rl [OPTION]... [FILE]...
Randomize the lines of a file (or stdin).

  -c, --count=N  select N lines from the file
  -r, --reselect lines may be selected multiple times
  -o, --output=FILE
                 send output to file
  -d, --delimiter=DELIM
                 specify line delimiter (one character)
  -0, --null     set line delimiter to null character
                 (useful with find -print0)
  -n, --line-number
                 print line number with output lines
  -q, --quiet, --silent
                 do not output any errors or warnings
  -h, --help     display this help and exit
  -V, --version  output version information and exit

Java doesn't support default parameters. You will need to have two constructors to do what you want.

An alternative if there are lots of possible values with defaults is to use the Builder pattern, whereby you use a helper object with setters.

e.g.

   public class Foo {
     private final String param1;
     private final String param2;

     private Foo(Builder builder) {
       this.param1 = builder.param1;
       this.param2 = builder.param2;
     }
     public static class Builder {
       private String param1 = "defaultForParam1";
       private String param2 = "defaultForParam2";

       public Builder param1(String param1) {
         this.param1 = param1;
         return this;
       }
       public Builder param2(String param1) {
         this.param2 = param2;
         return this;
       }
       public Foo build() {
         return new Foo(this);
       }
     }
   }

which allows you to say:

Foo myFoo = new Foo.Builder().param1("myvalue").build();

which will have a default value for param2.

<?php
ob_start();
var_dump($_POST['C']);
$result = ob_get_clean();
?>

if you want to capture the result in a variable

This is definitely not the best way to do this but, I got it done by doing something like following.

String imageName = "my_image.png";
String replace = imageName.replace('.','~');
String[] split = replace.split("~");

System.out.println("Image name : " + split[0]);
System.out.println("Image extension : " + split[1]);

Output,

Image name : my_image
Image extension : png

Very easy:

Here is what you want:

import os.path as path

two_up =  path.abspath(path.join(__file__ ,"../.."))

use the flex-row-reverse class

<nav class="navbar navbar-toggleable-md navbar-light">
    <div class="container">
        <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false"
          aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <a class="navbar-brand" href="#">
            <i class="fa fa-hospital-o fa-2x" aria-hidden="true"></i>
        </a>
        <div class="collapse navbar-collapse flex-row-reverse" id="navbarNavAltMarkup">
            <ul class="navbar-nav">
                <li><a class="nav-item nav-link active" href="#" style="background-color:#666">Home <span class="sr-only">(current)</span></a</li>
                <li><a class="nav-item nav-link" href="#">Doctors</a></li>
                <li><a class="nav-item nav-link" href="#">Specialists</a></li>
                <li><a class="nav-item nav-link" href="#">About</a></li>
            </ul>
        </div>
    </div>
</nav>

Yet another simple solution might be to use numpy.count_nonzero():

import numpy as np
y = np.array([0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1])
y_nonzero_num = np.count_nonzero(y==1)
y_zero_num = np.count_nonzero(y==0)
y_nonzero_num
4
y_zero_num
8

Don't let the name mislead you, if you use it with the boolean just like in the example, it will do the trick.

Just put ${yourpathtofile/folder}

PowerShell does not count spaces; to tell PowerShell to consider the whole path including spaces, add your path in between ${ & }.

You can also use a simple library called repyt, here is an example:

repyt ./app.py

Here is a free library for keyboard handling Keyboard-Handling-in-iPhone-Applications. You need write just one line of code:

[AutoScroller addAutoScrollTo:scrollView];

This is awesome to handle keyboard in forms

​ is the HTML entity for a unicode character called the zero-width space (ZWSP) which is an invisible character which specifies a line-break opportunity. Similarly the hyphen's purpose is to specify a line-break opportunity within a word boundary.

window.location adds an item to your history in that you can (or should be able to) click "Back" and go back to the current page.

window.location.replace replaces the current history item so you can't go back to it.

See window.location:

assign(url): Load the document at the provided URL.

replace(url):Replace the current document with the one at the provided URL. The difference from the assign() method is that after using replace() the current page will not be saved in session history, meaning the user won't be able to use the Back button to navigate to it.

Oh and generally speaking:

window.location.href = url;

is favoured over:

window.location = url;

With Jeffrey Fox's interpretation about no-cache, i've tested under chrome 52.0.2743.116 m, the result shows that no-cache has the same behavior as must-revalidate, they all will NOT use local cache when server is unreachable, and, they all will use cache while tap browser's Back/Forward button when server is unreachable. As above, i think max-age=0, must-revalidate is identical to no-cache, at least in implementation.

Two stacks in the queue are defined as stack1 and stack2.

Enqueue: The euqueued elements are always pushed into stack1

Dequeue: The top of stack2 can be popped out since it is the first element inserted into queue when stack2 is not empty. When stack2 is empty, we pop all elements from stack1 and push them into stack2 one by one. The first element in a queue is pushed into the bottom of stack1. It can be popped out directly after popping and pushing operations since it is on the top of stack2.

The following is same C++ sample code:

template <typename T> class CQueue
{
public:
    CQueue(void);
    ~CQueue(void);

    void appendTail(const T& node); 
    T deleteHead();                 

private:
    stack<T> stack1;
    stack<T> stack2;
};

template<typename T> void CQueue<T>::appendTail(const T& element) {
    stack1.push(element);
} 

template<typename T> T CQueue<T>::deleteHead() {
    if(stack2.size()<= 0) {
        while(stack1.size()>0) {
            T& data = stack1.top();
            stack1.pop();
            stack2.push(data);
        }
    }


    if(stack2.size() == 0)
        throw new exception("queue is empty");


    T head = stack2.top();
    stack2.pop();


    return head;
}

This solution is borrowed from my blog. More detailed analysis with step-by-step operation simulations is available in my blog webpage.

I found this article at digital bazaar really interesting. Quoting their quotations from Norm:

About JSON pros:

If all you want to pass around are atomic values or lists or hashes of atomic values, JSON has many of the advantages of XML: it’s straightforwardly usable over the Internet, supports a wide variety of applications, it’s easy to write programs to process JSON, it has few optional features, it’s human-legible and reasonably clear, its design is formal and concise, JSON documents are easy to create, and it uses Unicode. ...

About XML pros:

XML deals remarkably well with the full richness of unstructured data. I’m not worried about the future of XML at all even if its death is gleefully celebrated by a cadre of web API designers.

And I can’t resist tucking an "I told you so!" token away in my desk. I look forward to seeing what the JSON folks do when they are asked to develop richer APIs. When they want to exchange less well strucured data, will they shoehorn it into JSON? I see occasional mentions of a schema language for JSON, will other languages follow? ...

I personally agree with Norm. I think that most attacks to XML come from Web Developers for typical applications, and not really from integration developers. But that's my opinion! ;)

In Tomcat 8.0.44 I did this: create the JNDI on Tomcat's server.xml between the tag "GlobalNamingResources" For example:

<GlobalNamingResources>_x000D_
    <!-- Editable user database that can also be used by_x000D_
         UserDatabaseRealm to authenticate users_x000D_
    -->_x000D_
  <!-- Other previus resouces -->_x000D_
    <Resource auth="Container" driverClassName="org.postgresql.Driver" global="jdbc/your_jndi" _x000D_
    maxActive="100" maxIdle="20" maxWait="1000" minIdle="5" name="jdbc/your_jndi" password="your_password" _x000D_
    type="javax.sql.DataSource" url="jdbc:postgresql://localhost:5432/your_database?user=postgres" username="database_username"/>_x000D_
  </GlobalNamingResources>

<?xml version="1.0" encoding="UTF-8"?>_x000D_
<Context reloadable="true" >_x000D_
   <ResourceLink name="jdbc/your_jndi"_x000D_
      global="jdbc/your_jndi"_x000D_
      auth="Container"_x000D_
      type="javax.sql.DataSource" />_x000D_
</Context>

So if you're using Hiberte with spring you can tell to him to use the JNDI in your persistence.xml

<?xml version="1.0" encoding="UTF-8"?>_x000D_
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"_x000D_
 xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"_x000D_
 version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">_x000D_
 <persistence-unit name="UNIT_NAME" transaction-type="RESOURCE_LOCAL">_x000D_
  <provider>org.hibernate.ejb.HibernatePersistence</provider>_x000D_
_x000D_
  <properties>_x000D_
   <property name="javax.persistence.jdbc.driver"   value="org.postgresql.Driver" />_x000D_
   <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL82Dialect" />_x000D_
   _x000D_
   <!--  <property name="hibernate.jdbc.time_zone" value="UTC"/>-->_x000D_
   <property name="hibernate.hbm2ddl.auto" value="update" />_x000D_
   <property name="hibernate.show_sql" value="false" />_x000D_
   <property name="hibernate.format_sql" value="true"/>     _x000D_
  </properties>_x000D_
 </persistence-unit>_x000D_
</persistence>

So in your spring.xml you can do that:

<bean id="postGresDataSource" class="org.springframework.jndi.JndiObjectFactoryBean">_x000D_
   <property name="jndiName" value="java:comp/env/jdbc/your_jndi" />_x000D_
  </bean>_x000D_
     _x000D_
        <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">_x000D_
              <property name="persistenceUnitName" value="UNIT_NAME" />_x000D_
              <property name="dataSource" ref="postGresDataSource" />_x000D_
              <property name="jpaVendorAdapter"> _x000D_
                 <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />_x000D_
              </property>_x000D_
        </bean>

<property name="jndiName" value="java:comp/env/jdbc/your_jndi" />

In this example I used spring with xml but you can do this programmaticaly if you prefer.

That's it, I hope helped.

This code is work to insert a link item right after the last existing child to inlining a small css file

var raf, cb=function(){
    //create newnode
    var link=document.createElement('link');
    link.rel='stylesheet';link.type='text/css';link.href='css/style.css';

    //insert after the lastnode
    var nodes=document.getElementsByTagName('link'); //existing nodes
    var lastnode=document.getElementsByTagName('link')[nodes.length-1]; 
    lastnode.parentNode.insertBefore(link, lastnode.nextSibling);
};

//check before insert
try {
    raf=requestAnimationFrame||
        mozRequestAnimationFrame||
        webkitRequestAnimationFrame||
        msRequestAnimationFrame;
}
catch(err){
    raf=false;
}

if (raf)raf(cb); else window.addEventListener('load',cb);

I was having a similar problem today with a 2010 file with a large number of formulas and several database connections. The chart axis that were not updating references ranges with hidden columns, similar to others in this chain, and the labels displayed the month and year "MMM-YY" of the dynamic data. I tried all solutions listed except for the VBA options as I'd prefer to solve without code.

I was able to solve the issues by encapsulating my dates (the axis labels) in a TEXT formula as such: =TEXT(A10,"MMM-YY"). And everything immediately updates when values change. Happy days again!!!

From reading the other contributors issues above I started to think that the Charts were having problems with the DATE data type specifically, and therefore converting the values to text with the TEXT function resolved my issue. Hopefully this may help you as well. Just change the format within the double quotes (second argument of the TEXT function) to suit your needs.

You are not initializing connection.That's why this kind of error is coming to you.

Your code:

cmd.InsertCommand = new SqlCommand("INSERT INTO Application VALUES (@EventLog, @TimeGenerated, @EventType, @SourceName, @ComputerName, @InstanceId, @Message) ");

Corrected code:

cmd.InsertCommand = new SqlCommand("INSERT INTO Application VALUES (@EventLog, @TimeGenerated, @EventType, @SourceName, @ComputerName, @InstanceId, @Message) ",connection1);

This is my way to setup Servlet as welcome page.

I share for whom concern.

web.xml

  <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <servlet>
        <servlet-name>Demo</servlet-name>
        <servlet-class>servlet.Demo</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>Demo</servlet-name>
        <url-pattern></url-pattern>
    </servlet-mapping>

Servlet class

@WebServlet(name = "/demo")
public class Demo extends HttpServlet {
   public void doGet(HttpServletRequest req, HttpServletResponse res)
     throws ServletException, IOException  {
       RequestDispatcher rd = req.getRequestDispatcher("index.jsp");
   }
}

As of the date of this answer, GitHub has not (or shall I say no longer?) this feature in the web interface. You can, however, ask [email protected] to add your vote for that.

In the meantime, GitHub user bardiharborow has created a tool to do just this: https://upriver.github.io/

Source is here: https://github.com/upriver/upriver.github.io

Did you give yourself the rights to execute the script?

The following command as super user will do this for you:

sudo chmod 755 'filename'

For details you should read the man page of chmod.

I was looking to do the same thing, but to preserve the list as a just an array of strings so I wrote a new code, which from what I've been reading may not be the most efficient but worked for what i needed to do:

combineListsAsOne <-function(list1, list2){
  n <- c()
  for(x in list1){
    n<-c(n, x)
  }
  for(y in list2){
    n<-c(n, y)
  }
  return(n)
}

It just creates a new list and adds items from two supplied lists to create one.

Just telling you about one other possibility: I like using friend definitions for that:

namespace Math
{
    class Matrix
    {
    public:

        [...]

        friend std::ostream& operator<< (std::ostream& stream, const Matrix& matrix) {
            [...]
        }
    };
}

The function will be automatically targeted into the surrounding namespace Math (even though its definition appears within the scope of that class) but will not be visible unless you call operator<< with a Matrix object which will make argument dependent lookup find that operator definition. That can sometimes help with ambiguous calls, since it's invisible for argument types other than Matrix. When writing its definition, you can also refer directly to names defined in Matrix and to Matrix itself, without qualifying the name with some possibly long prefix and providing template parameters like Math::Matrix<TypeA, N>.

You can increase the List View Threshold beyond the 5,000 default, but it is highly recommended that you don't, as it has performance implications. The recommended fix is to add an index to the field or fields used in the query (usually the ID field for a list or the Title field for a library).

When there is an index, that is used to retrieve the item(s); when there is no index the whole list is opened for a scan (and therefore hits the threshold). You create the index on the List (or Library) settings page.

This article is a good overview: http://office.microsoft.com/en-us/sharepoint-foundation-help/manage-lists-and-libraries-with-many-items-HA010377496.aspx

You can use any of the following methods for setting the Drawable on TextView:

1- setCompoundDrawablesWithIntrinsicBounds(int, int, int, int)

2- setCompoundDrawables(Left_Drawable, Top_Drawable, Right_Drawable, Bottom_Drawable)

And to get drawable from resources you can use:

getResources().getDrawable(R.drawable.your_drawable_id);

Of course you could use blocks as properties. But make sure they are declared as @property(copy). For example:

typedef void(^TestBlock)(void);

@interface SecondViewController : UIViewController
@property (nonatomic, copy) TestBlock block;
@end

In MRC, blocks capturing context variables are allocated in stack; they will be released when the stack frame is destroyed. If they are copied, a new block will be allocated in heap, which can be executed later on after the stack frame is poped.

I used System.Data.Linq.SqlClient.SqlMethods.Like(row.Name, "test") in my query.

This performs a case-insensitive comparison.

There are different ways to do that.

• I created the data frame to showcase the different techniques to filter your data.

df = pd.DataFrame({'Date':['01-Jun-13','03-Jun-13', '15-Aug-13', '20-Jan-14', '21-Feb-14'],

'abc':[100,-20,40,25,60],'xyz':[200,50,-5,15,80] })

• I separated months/year/day and seperated month-year as you explained.

def getMonth(s):
  return s.split("-")[1]

def getDay(s):
  return s.split("-")[0]

def getYear(s):
  return s.split("-")[2]

def getYearMonth(s):
  return s.split("-")[1]+"-"+s.split("-")[2]

• I created new columns: year, month, day and 'yearMonth'. In your case, you need one of both. You can group using two columns 'year','month' or using one column yearMonth

df['year']= df['Date'].apply(lambda x: getYear(x))
df['month']= df['Date'].apply(lambda x: getMonth(x))
df['day']= df['Date'].apply(lambda x: getDay(x))
df['YearMonth']= df['Date'].apply(lambda x: getYearMonth(x))

Output:

        Date  abc  xyz year month day YearMonth
0  01-Jun-13  100  200   13   Jun  01    Jun-13
1  03-Jun-13  -20   50   13   Jun  03    Jun-13
2  15-Aug-13   40   -5   13   Aug  15    Aug-13
3  20-Jan-14   25   15   14   Jan  20    Jan-14
4  21-Feb-14   60   80   14   Feb  21    Feb-14

• You can go through the different groups in groupby(..) items.

In this case, we are grouping by two columns:

for key,g in df.groupby(['year','month']):
    print key,g

Output:

('13', 'Jun')         Date  abc  xyz year month day YearMonth
0  01-Jun-13  100  200   13   Jun  01    Jun-13
1  03-Jun-13  -20   50   13   Jun  03    Jun-13
('13', 'Aug')         Date  abc  xyz year month day YearMonth
2  15-Aug-13   40   -5   13   Aug  15    Aug-13
('14', 'Jan')         Date  abc  xyz year month day YearMonth
3  20-Jan-14   25   15   14   Jan  20    Jan-14
('14', 'Feb')         Date  abc  xyz year month day YearMonth

In this case, we are grouping by one column:

for key,g in df.groupby(['YearMonth']):
    print key,g

Output:

Jun-13         Date  abc  xyz year month day YearMonth
0  01-Jun-13  100  200   13   Jun  01    Jun-13
1  03-Jun-13  -20   50   13   Jun  03    Jun-13
Aug-13         Date  abc  xyz year month day YearMonth
2  15-Aug-13   40   -5   13   Aug  15    Aug-13
Jan-14         Date  abc  xyz year month day YearMonth
3  20-Jan-14   25   15   14   Jan  20    Jan-14
Feb-14         Date  abc  xyz year month day YearMonth
4  21-Feb-14   60   80   14   Feb  21    Feb-14

• In case you wanna access to specific item, you can use get_group

print df.groupby(['YearMonth']).get_group('Jun-13')

Output:

        Date  abc  xyz year month day YearMonth
0  01-Jun-13  100  200   13   Jun  01    Jun-13
1  03-Jun-13  -20   50   13   Jun  03    Jun-13

• Similar to get_group. This hack would help to filter values and get the grouped values.

This also would give the same result.

print df[df['YearMonth']=='Jun-13'] 

Output:

        Date  abc  xyz year month day YearMonth
0  01-Jun-13  100  200   13   Jun  01    Jun-13
1  03-Jun-13  -20   50   13   Jun  03    Jun-13

You can select list of abc or xyz values during Jun-13

print df[df['YearMonth']=='Jun-13'].abc.values
print df[df['YearMonth']=='Jun-13'].xyz.values

Output:

[100 -20]  #abc values
[200  50]  #xyz values

You can use this to go through the dates that you have classified as "year-month" and apply cretiria on it to get related data.

for x in set(df.YearMonth): 
    print df[df['YearMonth']==x].abc.values
    print df[df['YearMonth']==x].xyz.values

I recommend also to check this answer as well.

I had a similar issue where I was not able to either install a CRX file into Chrome.

It turns out that since I had my Downloads folder set to a network mapped drive, it would not allow Chrome to install any extensions and would either do nothing (drag and drop on Chrome) or ask me to download the extension (if I clicked a link from the Web Store).

Setting the Downloads folder to a local disk directory instead of a network directory allowed extensions to be installed.

Running: 20.0.1132.57 m

sub domain is part of the domain, it's like subletting a room of an apartment. A records has to be setup on the dns for the domain e.g

mydomain.com has IP 123.456.789.999 and hosted with Godaddy. Now to get the sub domain

anothersite.mydomain.com

of which the site is actually on another server then

login to Godaddy and add an A record ^dnsimple anothersite.mydomain.com and point the IP to the other server 98.22.11.11

And that's it.

That's a very complex question for a simple answer.

You may want to take a look at existing API frameworks, like Swagger Specification (OpenAPI), and services like apiary.io and apiblueprint.org.

Also, here's an example of the same REST API described, organized and even styled in three different ways. It may be a good start for you to learn from existing common ways.

• https://api.coinsecure.in/v1
• https://api.coinsecure.in/v1/originalUI
• https://api.coinsecure.in/v1/slateUI#!/Blockchain_Tools/v1_bitcoin_search_txid

At the very top level I think quality REST API docs require at least the following:

• a list of all your API endpoints (base/relative URLs)
• corresponding HTTP GET/POST/... method type for each endpoint
• request/response MIME-type (how to encode params and parse replies)
• a sample request/response, including HTTP headers
• type and format specified for all params, including those in the URL, body and headers
• a brief text description and important notes
• a short code snippet showing the use of the endpoint in popular web programming languages

Also there are a lot of JSON/XML-based doc frameworks which can parse your API definition or schema and generate a convenient set of docs for you. But the choice for a doc generation system depends on your project, language, development environment and many other things.

I had this concern when working on a Rails application with Docker.

My most preferred approach is to generally not use quotes. This includes not using quotes for:

• variables like ${RAILS_ENV}
• values separated by a colon (:) like postgres-log:/var/log/postgresql
• other strings values

I, however, use double-quotes for integer values that need to be converted to strings like:

• docker-compose version like version: "3.8"
• port numbers like "8080:8080"

However, for special cases like booleans, floats, integers, and other cases, where using double-quotes for the entry values could be interpreted as strings, please do not use double-quotes.

Here's a sample docker-compose.yml file to explain this concept:

version: "3"

services:
  traefik:
    image: traefik:v2.2.1
    command:
      - --api.insecure=true # Don't do that in production
      - --providers.docker=true
      - --providers.docker.exposedbydefault=false
      - --entrypoints.web.address=:80
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro

That's all.

I hope this helps

I think this is what you want.

$dayofweek = date('w', strtotime($date));
$result    = date('Y-m-d', strtotime(($day - $dayofweek).' day', strtotime($date)));

If a class, or anything derived from it, might hold the last live reference to an object with a finalizer, then either GC.SuppressFinalize(this) or GC.KeepAlive(this) should be called on the object after any operation that might be adversely affected by that finalizer, thus ensuring that the finalizer won't run until after that operation is complete.

The cost of GC.KeepAlive() and GC.SuppressFinalize(this) are essentially the same in any class that doesn't have a finalizer, and classes that do have finalizers should generally call GC.SuppressFinalize(this), so using the latter function as the last step of Dispose() may not always be necessary, but it won't be wrong.

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

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

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

or

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

In XML 1.0, the XML Declaration is optional. See section 2.8 of the XML 1.0 Recommendation, where it says it "should" be used -- which means it is recommended, but not mandatory. In XML 1.1, however, the declaration is mandatory. See section 2.8 of the XML 1.1 Recommendation, where it says "MUST" be used. It even goes on to state that if the declaration is absent, that automatically implies the document is an XML 1.0 document.

Note that in an XML Declaration the encoding and standalone are both optional. Only the version is mandatory. Also, these are not attributes, so if they are present they must be in that order: version, followed by any encoding, followed by any standalone.

<?xml version="1.0"?>
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" standalone="yes"?>
<?xml version="1.0" encoding="UTF-16" standalone="yes"?>

If you don't specify the encoding in this way, XML parsers try to guess what encoding is being used. The XML 1.0 Recommendation describes one possible way character encoding can be autodetected. In practice, this is not much of a problem if the input is encoded as UTF-8, UTF-16 or US-ASCII. Autodetection doesn't work when it encounters 8-bit encodings that use characters outside the US-ASCII range (e.g. ISO 8859-1) -- avoid creating these if you can.

The standalone indicates whether the XML document can be correctly processed without the DTD or not. People rarely use it. These days, it is a bad to design an XML format that is missing information without its DTD.

Update:

A "prolog error/invalid utf-8 encoding" error indicates that the actual data the parser found inside the file did not match the encoding that the XML declaration says it is. Or in some cases the data inside the file did not match the autodetected encoding.

Since your file contains a byte-order-mark (BOM) it should be in UTF-16 encoding. I suspect that your declaration says <?xml version="1.0" encoding="UTF-8"?> which is obviously incorrect when the file has been changed into UTF-16 by NotePad. The simple solution is to remove the encoding and simply say <?xml version="1.0"?>. You could also edit it to say encoding="UTF-16" but that would be wrong for the original file (which wasn't in UTF-16) or if the file somehow gets changed back to UTF-8 or some other encoding.

Don't bother trying to remove the BOM -- that's not the cause of the problem. Using NotePad or WordPad to edit XML is the real problem!

I am constructing a building of 300 floors

The building's blueprint interface

• For example, Servlet(I)

Building constructed up to 200 floors - partially completed---abstract

• Partial implementation, for example, generic and HTTP servlet

Building construction completed-concrete

• Full implementation, for example, own servlet

Interface

• We don't know anything about implementation, just requirements. We can go for an interface.
• Every method is public and abstract by default
• It is a 100% pure abstract class
• If we declare public we cannot declare private and protected
• If we declare abstract we cannot declare final, static, synchronized, strictfp and native
• Every interface has public, static and final
• Serialization and transient is not applicable, because we can't create an instance for in interface
• Non-volatile because it is final
• Every variable is static
• When we declare a variable inside an interface we need to initialize variables while declaring
• Instance and static block not allowed

Abstract

• Partial implementation
• It has an abstract method. An addition, it uses concrete
• No restriction for abstract class method modifiers
• No restriction for abstract class variable modifiers
• We cannot declare other modifiers except abstract
• No restriction to initialize variables

Taken from DurgaJobs Website

UUID is just a number. It has no meaning except you create on the server side of an Android app. Then the client connects using that same UUID.

For example, on the server side you can first run uuid = UUID.randomUUID() to generate a random number like fb36491d-7c21-40ef-9f67-a63237b5bbea. Then save that and then hard code that into your listener program like this:

 UUID uuid = UUID.fromString("fb36491d-7c21-40ef-9f67-a63237b5bbea"); 

Your Android server program will listen for incoming requests with that UUID like this:

    BluetoothServerSocket server = mBluetoothAdapter.listenUsingRfcommWithServiceRecord("anyName", uuid);

BluetoothSocket socket = server.accept();

Adding this android:hardwareAccelerated="true" in the manifest was the only thing that significantly improved the performance for me

More info here: http://developer.android.com/guide/topics/manifest/application-element.html#hwaccel

If you've implemented a change method like this:

class AddPartNumberToProducts < ActiveRecord::Migration
  def change
    add_column :products, :part_number, :string
  end
end

You can create an instance of the migration and run migrate(:up) or migrate(:down) on an instance, like this:

$ rails console
>> require "db/migrate/20090408054532_add_part_number_to_products.rb"
>> AddPartNumberToProducts.new.migrate(:down)

Actually AnnotationConfigApplicationContext derived from AbstractApplicationContext, which has empty postProcessBeanFactory method left for override

/**
 * Modify the application context's internal bean factory after its standard
 * initialization. All bean definitions will have been loaded, but no beans
 * will have been instantiated yet. This allows for registering special
 * BeanPostProcessors etc in certain ApplicationContext implementations.
 * @param beanFactory the bean factory used by the application context
 */
protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
}

To leverage this, Create AnnotationConfigApplicationContextProvider class which may look like following(given for Vertx instance example, you can use MyClass instead)...

public class CustomAnnotationApplicationContextProvider {
private final Vertx vertx;

public CustomAnnotationApplicationContextProvider(Vertx vertx) {
    this.vertx = vertx;
}

/**
 * Register all beans to spring bean factory
 *
 * @param beanFactory, spring bean factory to register your instances
 */
private void configureBeans(ConfigurableListableBeanFactory beanFactory) {
    beanFactory.registerSingleton("vertx", vertx);
}

/**
 * Proxy method to create {@link AnnotationConfigApplicationContext} instance with no params
 *
 * @return {@link AnnotationConfigApplicationContext} instance
 */
public AnnotationConfigApplicationContext get() {
    return new AnnotationConfigApplicationContext() {

        @Override
        protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
            super.postProcessBeanFactory(beanFactory);
            configureBeans(beanFactory);
        }
    };
}

/**
 * Proxy method to call {@link AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(DefaultListableBeanFactory)} with our logic
 *
 * @param beanFactory bean factory for spring
 * @return
 * @see AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(DefaultListableBeanFactory)
 */
public AnnotationConfigApplicationContext get(DefaultListableBeanFactory beanFactory) {
    return new AnnotationConfigApplicationContext(beanFactory) {

        @Override
        protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
            super.postProcessBeanFactory(beanFactory);
            configureBeans(beanFactory);
        }
    };
}

/**
 * Proxy method to call {@link AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(Class[])} with our logic
 *
 * @param annotatedClasses, set of annotated classes for spring
 * @return
 * @see AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(Class[])
 */
public AnnotationConfigApplicationContext get(Class<?>... annotatedClasses) {
    return new AnnotationConfigApplicationContext(annotatedClasses) {

        @Override
        protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
            super.postProcessBeanFactory(beanFactory);
            configureBeans(beanFactory);
        }
    };
}

/**
 * proxy method to call {@link AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(String...)} with our logic
 *
 * @param basePackages set of base packages for spring
 * @return
 * @see AnnotationConfigApplicationContext#AnnotationConfigApplicationContext(String...)
 */
public AnnotationConfigApplicationContext get(String... basePackages) {
    return new AnnotationConfigApplicationContext(basePackages) {

        @Override
        protected void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) {
            super.postProcessBeanFactory(beanFactory);
            configureBeans(beanFactory);
        }
    };
}
}

While creating ApplicationContext you can create it using

Vertx vertx = ...; // either create or for vertx, it'll be passed to main verticle
ApplicationContext context = new CustomAnnotationApplicationContextProvider(vertx).get(ApplicationSpringConfig.class);

In my case it was because I switched to master using

 git checkout -B master

Just to pull the new version of it instead of

 git checkout master

The first command resets the head of master to my latest commits

I used

git reset --hard origin/master

To fix that

If the object was recently created, you can check the Schema Changes History report, within the SQL Server Management Studio, which "provides a history of all committed DDL statement executions within the Database recorded by the default trace":

You then can search for the create statements of the objects. Among all the information displayed, there is the login name of whom executed the DDL statement.

A slight deviation from the original question however may prove useful for future people landing here wanting to DROP and CREATE an index, i.e. in a deployment script.

You can bypass the exists check simply by adding the following to your create statement:

CREATE INDEX IX_IndexName
ON dbo.TableName
WITH (DROP_EXISTING = ON);

Read more here: CREATE INDEX (Transact-SQL) - DROP_EXISTING Clause

N.B. As mentioned in the comments, the index must already exist for this clause to work without throwing an error.

One thing to think about is: Do you have your WCF completely uncoupled from the WindowsService (WS)? A WS is painful because you don't have a lot of control or visibility to them. I try to mitigate this by having all of my non-WS stuff in their own classes so they can be tested independently of the host WS. Using this approach might help you eliminate anything that is happening with the WS runtime vs. your service in particular.

John is likely correct that it is a .config file problem. WCF will always look for the execution context .config. So if you are hosting your WCF in different execution contexts (that is, test with a console application, and deploy with a WS), you need to make sure you have WCF configuration data moved over to the proper .config file. But the underlying issue to me is that you don't know what the problem is because the WS goo gets in the way. If you haven't refactored to that yet so that you can run your service in any context (that is, unit test or console), then I'd sugget doing so. If you spun your service up in a unit test, it would likely fail the same way that you are seeing with the WS which is much easier to debug rather than attempting to do so with the yucky WS plumbing.

You did not activate the virtual environment before using pip.

Try it with:

$(your venv path) . bin/activate

And then use pip -r requirements.txt on your main folder

http://www.amk.ca/python/writing/DB-API.html

Be careful when you simply append values of variables to your statements: Imagine a user naming himself ';DROP TABLE Users;' -- That's why you need to use sql escaping, which Python provides for you when you use the cursor.execute in a decent manner. Example in the url is:

cursor.execute("insert into Attendees values (?, ?, ?)", (name,
seminar, paid) )

Accurate explanation from Armin Ronacher above, expanding on his answers so that beginners like me understand it well:

Difference in the methods defined in a class, whether static or instance method(there is yet another type - class method - not discussed here so skipping it), lay in the fact whether they are somehow bound to the class instance or not. For example, say whether the method receives a reference to the class instance during runtime

class C:
    a = [] 
    def foo(self):
        pass

C # this is the class object
C.a # is a list object (class property object)
C.foo # is a function object (class property object)
c = C() 
c # this is the class instance

The __dict__ dictionary property of the class object holds the reference to all the properties and methods of a class object and thus

>>> C.__dict__['foo']
<function foo at 0x17d05b0>

the method foo is accessible as above. An important point to note here is that everything in python is an object and so references in the dictionary above are themselves pointing to other objects. Let me call them Class Property Objects - or as CPO within the scope of my answer for brevity.

If a CPO is a descriptor, then python interpretor calls the __get__() method of the CPO to access the value it contains.

In order to determine if a CPO is a descriptor, python interpretor checks if it implements the descriptor protocol. To implement descriptor protocol is to implement 3 methods

def __get__(self, instance, owner)
def __set__(self, instance, value)
def __delete__(self, instance)

for e.g.

>>> C.__dict__['foo'].__get__(c, C)

where

• self is the CPO (it could be an instance of list, str, function etc) and is supplied by the runtime
• instance is the instance of the class where this CPO is defined (the object 'c' above) and needs to be explicity supplied by us
• owner is the class where this CPO is defined(the class object 'C' above) and needs to be supplied by us. However this is because we are calling it on the CPO. when we call it on the instance, we dont need to supply this since the runtime can supply the instance or its class(polymorphism)
• value is the intended value for the CPO and needs to be supplied by us

Not all CPO are descriptors. For example

>>> C.__dict__['foo'].__get__(None, C)
<function C.foo at 0x10a72f510> 
>>> C.__dict__['a'].__get__(None, C)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute '__get__'

This is because the list class doesnt implement the descriptor protocol.

Thus the argument self in c.foo(self) is required because its method signature is actually this C.__dict__['foo'].__get__(c, C) (as explained above, C is not needed as it can be found out or polymorphed) And this is also why you get a TypeError if you dont pass that required instance argument.

If you notice the method is still referenced via the class Object C and the binding with the class instance is achieved via passing a context in the form of the instance object into this function.

This is pretty awesome since if you chose to keep no context or no binding to the instance, all that was needed was to write a class to wrap the descriptor CPO and override its __get__() method to require no context. This new class is what we call a decorator and is applied via the keyword @staticmethod

class C(object):
  @staticmethod
  def foo():
   pass

The absence of context in the new wrapped CPO foo doesnt throw an error and can be verified as follows:

>>> C.__dict__['foo'].__get__(None, C)
<function foo at 0x17d0c30>

Use case of a static method is more of a namespacing and code maintainability one(taking it out of a class and making it available throughout the module etc).

It maybe better to write static methods rather than instance methods whenever possible, unless ofcourse you need to contexualise the methods(like access instance variables, class variables etc). One reason is to ease garbage collection by not keeping unwanted reference to objects.

I disagree with the accepted answer being "the easiest", particularly if you want to use virtualenv.

You can use the Unofficial Windows Binaries instead. Download the appropriate wheel from there, and install it with pip:

pip install pywin32-219-cp27-none-win32.whl

(Make sure you pick the one for the right version and bitness of Python).

You might be able to get the URL and install it via pip without downloading it first, but they're made it a bit harder to just grab the URL. Probably better to download it and host it somewhere yourself.

Just came across this while looking for a solution and wanted to add I was able to solve the issue by adding the "null" parameter to the copy_from call:

cur.copy_from(f, tablename, sep=',', null='')

Use a grep analog to find the strings oldnamespace and Jenine inside the files in your whole project folder. Then you'd know what step to do next.

Alternative to Array.from is to use Array.prototype.forEach.call

forEach: Array.prototype.forEach.call(htmlCollection, i => { console.log(i) });

map: Array.prototype.map.call(htmlCollection, i => { console.log(i) });

ect...

when: myvar | default('', true) | trim != ''

I use | trim != '' to check if a variable has an empty value or not. I also always add the | default(..., true) check to catch when myvar is undefined too.

You have no need to put for loop to see the data into the array, you can simply do in following manner

<?php
echo "<pre>";
 print_r($results); 
echo "</pre>";
?>

This code extracts the YouTube video duration using the YouTube API v3 by passing a video ID. It worked for me.

<?php
    function getDuration($videoID){
       $apikey = "YOUR-Youtube-API-KEY"; // Like this AIcvSyBsLA8znZn-i-aPLWFrsPOlWMkEyVaXAcv
       $dur = file_get_contents("https://www.googleapis.com/youtube/v3/videos?part=contentDetails&id=$videoID&key=$apikey");
       $VidDuration =json_decode($dur, true);
       foreach ($VidDuration['items'] as $vidTime)
       {
           $VidDuration= $vidTime['contentDetails']['duration'];
       }
       preg_match_all('/(\d+)/',$VidDuration,$parts);
       return $parts[0][0] . ":" .
              $parts[0][1] . ":".
              $parts[0][2]; // Return 1:11:46 (i.e.) HH:MM:SS
    }

    echo getDuration("zyeubYQxHyY"); // Video ID
?>

You can get your domain's own YouTube API key on https://console.developers.google.com and generate credentials for your own requirement.

Not sure if this helps but in my app I had to check if a dictionary has changed.

Doing this will not work since basically it's still the same object:

val={'A':1,'B':2}
old_val=val

val['A']=10
if old_val != val:
  print('changed')

Using copy/deepcopy works:

import copy
val={'A':1,'B':2}
old_val=copy.deepcopy(val)

val['A']=10
if old_val != val:
  print('changed')

One way is to put all the nested loops into a function and return from the inner most loop incase of a need to break out of all loops.

function() 
{    
  for(int i=0; i<1000; i++)
  {
   for(int j=0; j<1000;j++)
   {
      if (condition)
        return;
   }
  }    
}

Add this to your <head>:

<style type="text/css">
    textarea { border: none; }
</style>

Or do it directly on the textarea:

<textarea style="border: none"></textarea>

You can also run conda init as below,

C:\ProgramData\Anaconda3\Scripts\conda init cmd.exe

or

C:\ProgramData\Anaconda3\Scripts\conda init powershell

Note that the execution policy of powershell must be set, e.g. using Set-ExecutionPolicy Unrestricted.

You can use TRUNC on DateTime to remove Time part of the DateTime. So your where clause can be:

AND TRUNC(p1.PA_VALUE) >= TO_DATE('25/10/2012', 'DD/MM/YYYY')

The TRUNCATE (datetime) function returns date with the time portion of the day truncated to the unit specified by the format model.

To find out concept of DOM element it is essential to understand concept of Dynamic HTML and DOM. Everything is started from the time that requirements of all stockholders of web pages are enhanced. They wanted the Web pages that can be more interactive, dynamic and lively. In addition, to reach this goal, developers required the tools and mechanisms that via them the presentation and content of each section of web page can be modified or manipulated. Therefore the concept of Dynamic HTML is created. To understand it, a great definition for Dynamic HTML is accessible in Wikipedia:

Dynamic HTML, or DHTML, is an umbrella term for a collection of technologies used together to create interactive and animated websites by using a combination of a static markup language (such as HTML), a client-side scripting language (such as JavaScript), a presentation definition language (such as CSS), and the Document Object Model (DOM).

So, writing standard DHTML web pages are standardized in three fields, including client-side scripting language (such as JavaScript), a presentation definition language (such as CSS) and uniform programming interface(API) to access and modify the Web page (Document Object Model). This activity is performed by W3C and others. Also to solve the problem of cross browser, W3C tried to reach a general consensus (with different browser vendors) about scripts to access and manipulate HTML and XML documents via Document Object Model (DOM) as a standard application programming interface (API).

But the main question is that how they designed the structure of Document Object Model to meet their needs. Their solution was simple but wonderful. They used a hierarchical structure such as tree which at the root of the tree you can find document object, also each node is equivalent of a HTML elements (DOM element). This abstraction of your web page give you a great facility to access any HTML element, style sheets, and ... . To understand it better you can map each indent of your HTML code to each level of DOM tree. Please pay attention to this example:

Your HTML:

<!DOCTYPE html>
<html>
    <head>
    </head>
    <body>
        <p>...</p>
        <ul>
            <li>...</li>
        </ul>
        <table>
            <tr>...</tr>
        </table>
    </body>
</html> 

DOM Structure:

    document
      |    .    
    <html>    .
    /   \         .
 <head> <body>  styleSheets
        /  \  \
      <p> <ul> <table>
      /     \       \
    text    <li>    <tr>  

So, each node of this hierarchical structure (DOM tree) refers to a DOM element. To learn more use tis reference

You could do something like this

dict = [{
   "id": 1,
   "name": "Doom Hammer"
 },
 {
    "id": 2,
    "name": "Rings ov Saturn"
 }
]

for x in dict:
  if x["id"] == 2:
    print(x["name"])

Thats what i use to find the objects in a long array of objects.

Did you try it without the WSGIDaemonProcess option?

I had no trouble setting up mod_wsgi at home, but did it without the daemon option. You mentioned solving by moving around virtual hosts files and I note this caveat in the docs for WSGIDaemonProcess:

Also note that the name of the daemon process group must be unique for the whole server. That is, it is not possible to use the same daemon process group name in different virtual hosts.

Don't know if that's coincidence.

If your LinuxOS has this file:

/etc/environment

You can use it to permanently set environmental variables for all users.

Extracted from: http://www.sysadmit.com/2016/04/linux-variables-de-entorno-permanentes.html

I had been experiencing this problem and nothing seemed to work until I moved the log call into a handler. Now it works every time, no matter where you are at.

Above solutions not helped me, but I resolve same issue by next way

private setHeaders(params) {      
        const accessToken = this.localStorageService.get('token');
        const reqData = {
            headers: {
                Authorization: `Bearer ${accessToken}`
            },
        };
        if(params) {
            let reqParams = {};        
            Object.keys(params).map(k =>{
                reqParams[k] = params[k];
            });
            reqData['params'] = reqParams;
        }
        return reqData;
    }

and send request

this.http.get(this.getUrl(url), this.setHeaders(params))

Its work with NestJS backend, with other I don't know.

$('#registerform').submit(function(e) {
   e.preventDefault();
   $.ajax({
        type: 'POST',
        url: 'submit.php',
        data: $(this).serialize(),
        beforeSend: //do something
        complete: //do something
        success: //do something for example if the request response is success play your animation...
   });

})

char* data;
stringstream myStreamString;
myStreamString << data;
string myString = myStreamString.str();
cout << myString << endl;

Write lock on shared local repository

I had this problem and none of above advises helped me. I was able to fetch everything correctly. But push always failed. It was a local repository located on windows directory with several clients working with it through VMWare shared folder driver. It appeared that one of the systems locked Git repository for writing. After stopping relevant VMWare system, which caused the lock everything repaired immediately. It was almost impossible to figure out, which system causes the error, so I had to stop them one by one until succeeded.

these are primitive data types

• boolean
• character
• byte
• short
• integer
• long
• float
• double

saved in stack in the memory which is managed memory on the other hand object data type or reference data type stored in head in the memory managed by GC

this is the most important difference

A scalar always holds a single element. Whatever is in a scalar variable is always a scalar. A reference is a scalar value.

If you want to know if it is a reference, you can use ref. If you want to know the reference type, you can use the reftype routine from Scalar::Util.

If you want to know if it is an object, you can use the blessed routine from Scalar::Util. You should never care what the blessed package is, though. UNIVERSAL has some methods to tell you about an object: if you want to check that it has the method you want to call, use can; if you want to see that it inherits from something, use isa; and if you want to see it the object handles a role, use DOES.

If you want to know if that scalar is actually just acting like a scalar but tied to a class, try tied. If you get an object, continue your checks.

If you want to know if it looks like a number, you can use looks_like_number from Scalar::Util. If it doesn't look like a number and it's not a reference, it's a string. However, all simple values can be strings.

If you need to do something more fancy, you can use a module such as Params::Validate.

If you aren't dynamically loading scripts or marking them as defer or async, then scripts are loaded in the order encountered in the page. It doesn't matter whether it's an external script or an inline script - they are executed in the order they are encountered in the page. Inline scripts that come after external scripts are held until all external scripts that came before them have loaded and run.

Async scripts (regardless of how they are specified as async) load and run in an unpredictable order. The browser loads them in parallel and it is free to run them in whatever order it wants.

There is no predictable order among multiple async things. If one needed a predictable order, then it would have to be coded in by registering for load notifications from the async scripts and manually sequencing javascript calls when the appropriate things are loaded.

When a script tag is inserted dynamically, how the execution order behaves will depend upon the browser. You can see how Firefox behaves in this reference article. In a nutshell, the newer versions of Firefox default a dynamically added script tag to async unless the script tag has been set otherwise.

A script tag with async may be run as soon as it is loaded. In fact, the browser may pause the parser from whatever else it was doing and run that script. So, it really can run at almost any time. If the script was cached, it might run almost immediately. If the script takes awhile to load, it might run after the parser is done. The one thing to remember with async is that it can run anytime and that time is not predictable.

A script tag with defer waits until the entire parser is done and then runs all scripts marked with defer in the order they were encountered. This allows you to mark several scripts that depend upon one another as defer. They will all get postponed until after the document parser is done, but they will execute in the order they were encountered preserving their dependencies. I think of defer like the scripts are dropped into a queue that will be processed after the parser is done. Technically, the browser may be downloading the scripts in the background at any time, but they won't execute or block the parser until after the parser is done parsing the page and parsing and running any inline scripts that are not marked defer or async.

Here's a quote from that article:

script-inserted scripts execute asynchronously in IE and WebKit, but synchronously in Opera and pre-4.0 Firefox.

The relevant part of the HTML5 spec (for newer compliant browsers) is here. There is a lot written in there about async behavior. Obviously, this spec doesn't apply to older browsers (or mal-conforming browsers) whose behavior you would probably have to test to determine.

A quote from the HTML5 spec:

Then, the first of the following options that describes the situation must be followed:

If the element has a src attribute, and the element has a defer attribute, and the element has been flagged as "parser-inserted", and the element does not have an async attribute The element must be added to the end of the list of scripts that will execute when the document has finished parsing associated with the Document of the parser that created the element.

The task that the networking task source places on the task queue once the fetching algorithm has completed must set the element's "ready to be parser-executed" flag. The parser will handle executing the script.

If the element has a src attribute, and the element has been flagged as "parser-inserted", and the element does not have an async attribute The element is the pending parsing-blocking script of the Document of the parser that created the element. (There can only be one such script per Document at a time.)

The task that the networking task source places on the task queue once the fetching algorithm has completed must set the element's "ready to be parser-executed" flag. The parser will handle executing the script.

If the element does not have a src attribute, and the element has been flagged as "parser-inserted", and the Document of the HTML parser or XML parser that created the script element has a style sheet that is blocking scripts The element is the pending parsing-blocking script of the Document of the parser that created the element. (There can only be one such script per Document at a time.)

Set the element's "ready to be parser-executed" flag. The parser will handle executing the script.

If the element has a src attribute, does not have an async attribute, and does not have the "force-async" flag set The element must be added to the end of the list of scripts that will execute in order as soon as possible associated with the Document of the script element at the time the prepare a script algorithm started.

The task that the networking task source places on the task queue once the fetching algorithm has completed must run the following steps:

If the element is not now the first element in the list of scripts that will execute in order as soon as possible to which it was added above, then mark the element as ready but abort these steps without executing the script yet.

Execution: Execute the script block corresponding to the first script element in this list of scripts that will execute in order as soon as possible.

Remove the first element from this list of scripts that will execute in order as soon as possible.

If this list of scripts that will execute in order as soon as possible is still not empty and the first entry has already been marked as ready, then jump back to the step labeled execution.

If the element has a src attribute The element must be added to the set of scripts that will execute as soon as possible of the Document of the script element at the time the prepare a script algorithm started.

The task that the networking task source places on the task queue once the fetching algorithm has completed must execute the script block and then remove the element from the set of scripts that will execute as soon as possible.

Otherwise The user agent must immediately execute the script block, even if other scripts are already executing.

What about Javascript module scripts, type="module"?

Javascript now has support for module loading with syntax like this:

<script type="module">
  import {addTextToBody} from './utils.mjs';

  addTextToBody('Modules are pretty cool.');
</script>

Or, with src attribute:

<script type="module" src="http://somedomain.com/somescript.mjs">
</script>

All scripts with type="module" are automatically given the defer attribute. This downloads them in parallel (if not inline) with other loading of the page and then runs them in order, but after the parser is done.

Module scripts can also be given the async attribute which will run inline module scripts as soon as possible, not waiting until the parser is done and not waiting to run the async script in any particular order relative to other scripts.

There's a pretty useful timeline chart that shows fetch and execution of different combinations of scripts, including module scripts here in this article: Javascript Module Loading.

If this is for Linux, I've been using the function "gettimeofday", which returns a struct that gives the seconds and microseconds since the Epoch. You can then use timersub to subtract the two to get the difference in time, and convert it to whatever precision of time you want. However, you specify nanoseconds, and it looks like the function clock_gettime() is what you're looking for. It puts the time in terms of seconds and nanoseconds into the structure you pass into it.

irb(main):005:0> a = Date.parse("12/1/2010")
=> #<Date: 4911063/2,0,2299161>

irb(main):007:0> b = Date.parse("12/21/2010")
=> #<Date: 4911103/2,0,2299161>

irb(main):016:0> c = b.mjd - a.mjd
=> 20

This uses a Modified Julian Day Number.

From wikipedia:

The Julian date (JD) is the interval of time in days and fractions of a day since January 1, 4713 BC Greenwich noon, Julian proleptic calendar.

Try

isSubstring = first in theOther

Use the Javascript string split() function.

var coolVar = '123-abc-itchy-knee';
var partsArray = coolVar.split('-');

// Will result in partsArray[0] == '123', partsArray[1] == 'abc', etc

"SP25 work on Visual Studio 2019" is an exaggeration. It is extremely unreliable and should be avoided at all costs. I currently have to maintain a second development environment with V2015 for report development.

I needed to copy all .md files from one directory into another, so here is what I did.

for i in **/*.md;do mkdir -p ../docs/"$i" && rm -r ../docs/"$i" && cp "$i" "../docs/$i" && echo "$i -> ../docs/$i"; done

Which is pretty hard to read, so lets break it down.

first cd into the directory with your files,

for i in **/*.md; for each file in your pattern

mkdir -p ../docs/"$i"make that directory in a docs folder outside of folder containing your files. Which creates an extra folder with the same name as that file.

rm -r ../docs/"$i" remove the extra folder that is created as a result of mkdir -p

cp "$i" "../docs/$i" Copy the actual file

echo "$i -> ../docs/$i" Echo what you did

; done Live happily ever after

Try this as the command string in Task Scheduler:

cmd /c yourscript.cmd > logall.txt

Use the system stored procedure sp_who2.

For a nice step-by-step x86 Mac-specific introduction see http://peter.michaux.ca/articles/assembly-hello-world-for-os-x. The other links I’ve tried have some non-Mac pitfalls.

when you invoke a function , it is termed 'calling' a function . For eg , suppose you've defined a function that finds the average of two numbers like this-

def avgg(a,b) :
        return (a+b)/2;

now, to call the function , you do like this .

x=avgg(4,6)
print x

value of x will be 5 .

/* Many years ago, when the earth was still cooling, we used this: */

typedef enum
{
    false = ( 1 == 0 ),
    true = ( ! false )
} bool;

/* It has always worked for me. */

In my case this was a shopping order. So I disabled the button. When the user clicked back, the button was disabled still. When they clicked back one more time, and then clicked a page button to go forward. I knew their order was submitted and skipped to another page.

In the case when the page actually refreshed which would make the button (theoretically), available; I was then able to react in the page load that the order was already submitted and redirected then too.

Label vs. Location

The main distinction between the two methods is:

• loc gets rows (and/or columns) with particular labels.

• iloc gets rows (and/or columns) at integer locations.

To demonstrate, consider a series s of characters with a non-monotonic integer index:

>>> s = pd.Series(list("abcdef"), index=[49, 48, 47, 0, 1, 2]) 
49    a
48    b
47    c
0     d
1     e
2     f

>>> s.loc[0]    # value at index label 0
'd'

>>> s.iloc[0]   # value at index location 0
'a'

>>> s.loc[0:1]  # rows at index labels between 0 and 1 (inclusive)
0    d
1    e

>>> s.iloc[0:1] # rows at index location between 0 and 1 (exclusive)
49    a

Here are some of the differences/similarities between s.loc and s.iloc when passed various objects:

loc's label-querying capabilities extend well-beyond integer indexes and it's worth highlighting a couple of additional examples.

Here's a Series where the index contains string objects:

>>> s2 = pd.Series(s.index, index=s.values)
>>> s2
a    49
b    48
c    47
d     0
e     1
f     2

Since loc is label-based, it can fetch the first value in the Series using s2.loc['a']. It can also slice with non-integer objects:

>>> s2.loc['c':'e']  # all rows lying between 'c' and 'e' (inclusive)
c    47
d     0
e     1

For DateTime indexes, we don't need to pass the exact date/time to fetch by label. For example:

>>> s3 = pd.Series(list('abcde'), pd.date_range('now', periods=5, freq='M')) 
>>> s3
2021-01-31 16:41:31.879768    a
2021-02-28 16:41:31.879768    b
2021-03-31 16:41:31.879768    c
2021-04-30 16:41:31.879768    d
2021-05-31 16:41:31.879768    e

Then to fetch the row(s) for March/April 2021 we only need:

>>> s3.loc['2021-03':'2021-04']
2021-03-31 17:04:30.742316    c
2021-04-30 17:04:30.742316    d

Rows and Columns

loc and iloc work the same way with DataFrames as they do with Series. It's useful to note that both methods can address columns and rows together.

When given a tuple, the first element is used to index the rows and, if it exists, the second element is used to index the columns.

Consider the DataFrame defined below:

>>> import numpy as np 
>>> df = pd.DataFrame(np.arange(25).reshape(5, 5),  
                      index=list('abcde'), 
                      columns=['x','y','z', 8, 9])
>>> df
    x   y   z   8   9
a   0   1   2   3   4
b   5   6   7   8   9
c  10  11  12  13  14
d  15  16  17  18  19
e  20  21  22  23  24

Then for example:

>>> df.loc['c': , :'z']  # rows 'c' and onwards AND columns up to 'z'
    x   y   z
c  10  11  12
d  15  16  17
e  20  21  22

>>> df.iloc[:, 3]        # all rows, but only the column at index location 3
a     3
b     8
c    13
d    18
e    23

Sometimes we want to mix label and positional indexing methods for the rows and columns, somehow combining the capabilities of loc and iloc.

For example, consider the following DataFrame. How best to slice the rows up to and including 'c' and take the first four columns?

>>> import numpy as np 
>>> df = pd.DataFrame(np.arange(25).reshape(5, 5),  
                      index=list('abcde'), 
                      columns=['x','y','z', 8, 9])
>>> df
    x   y   z   8   9
a   0   1   2   3   4
b   5   6   7   8   9
c  10  11  12  13  14
d  15  16  17  18  19
e  20  21  22  23  24

We can achieve this result using iloc and the help of another method:

>>> df.iloc[:df.index.get_loc('c') + 1, :4]
    x   y   z   8
a   0   1   2   3
b   5   6   7   8
c  10  11  12  13

get_loc() is an index method meaning "get the position of the label in this index". Note that since slicing with iloc is exclusive of its endpoint, we must add 1 to this value if we want row 'c' as well.

The reason for this is, that Google is sending an "X-Frame-Options: SAMEORIGIN" response header. This option prevents the browser from displaying iFrames that are not hosted on the same domain as the parent page.

See: Mozilla Developer Network - The X-Frame-Options response header

I might be late in the game, but how about:

public event Action<MyEvent> EventTriggered = delegate { }; 

private void Trigger(MyEvent e) 
{ 
     EventTriggered(e);
} 

Setting the event to an anonymous delegate avoids for me to check to see if the event isn't null.

I find this comes in handy when using MVVM, like when using ICommand.CanExecute Method.

Here is a slight variation on answer offered by jfriend00:

$.fn.hasAnyClass = function() {
    var classes = arguments[0].split(" ");
    for (var i = 0; i < classes.length; i++) {
        if (this.hasClass(classes[i])) {
            return true;
        }
    }
    return false;
}

Allows use of same syntax as .addClass() and .removeClass(). e.g., .hasAnyClass('m320 m768') Needs bulletproofing, of course, as it assumes at least one argument.

In my case the site that I'm connecting to has upgraded to TLS 1.2. As a result I had to install .net 4.5.2 on my web server in order to support it.

Very first will declare outer Arraylist which will contain another inner Arraylist inside it

ArrayList> CompletesystemStatusArrayList; ArrayList systemStatusArrayList

CompletesystemStatusArrayList=new ArrayList

systemStatusArrayList=new ArrayList();

    systemStatusArrayList.add("1");
    systemStatusArrayList.add("2");
    systemStatusArrayList.add("3");
    systemStatusArrayList.add("4");
    systemStatusArrayList.add("5");
    systemStatusArrayList.add("6");
    systemStatusArrayList.add("7");
    systemStatusArrayList.add("8");

    CompletesystemStatusArrayList.add(systemStatusArrayList);

Creating a new base collection for each eloquent collection the merge works for me.

$foo = collect(Foo::all());
$bar = collect(Bar::all());
$merged = $foo->merge($bar);

In this case don't have conflits by its primary keys.

How to make a button call PHP?

I don't care if the page reloads or displays the results immediately;

Good!

Note: If you don't want to refresh the page see "Ok... but how do I Use Ajax anyway?" below.

I just want to have a button on my website make a PHP file run.

That can be done with a form with a single button:

<form action="">
  <input type="submit" value="my button"/>
</form>

That's it.

Pretty much. Also note that there are cases where ajax is really the way to go.

That depends on what you want. In general terms you only need ajax when you want to avoid realoading the page. Still you have said that you don't care about that.

Why I cannot call PHP directly from JavaScript?

If I can write the code inside HTML just fine, why can't I just reference the file for it in there or make a simple call for it in Javascript?

Because the PHP code is not in the HTML just fine. That's an illusion created by the way most server side scripting languages works (including PHP, JSP, and ASP). That code only exists on the server, and it is no reachable form the client (the browser) without a remote call of some sort.

You can see evidence of this if you ask your browser to show the source code of the page. There you will not see the PHP code, that is because the PHP code is not send to the client, therefore it cannot be executed from the client. That's why you need to do a remote call to be able to have the client trigger the execution of PHP code.

If you don't use a form (as shown above) you can do that remote call from JavaScript with a little thing called Ajax. You may also want to consider if what you want to do in PHP can be done directly in JavaScript.

How to call another PHP file?

Use a form to do the call. You can have it to direct the user to a particlar file:

<form action="myphpfile.php">
  <input type="submit" value="click on me!">
</form>

The user will end up in the page myphpfile.php. To make it work for the current page, set action to an empty string (which is what I did in the example I gave you early).

I just want to link it to a PHP file that will create the permanent blog post on the server so that when I reload the page, the post is still there.

You want to make an operation on the server, you should make your form have the fields you need (even if type="hidden" and use POST):

<form action="" method="POST">
  <input type="text" value="default value, you can edit it" name="myfield">
  <input type="submit" value = "post">
</form>

What do I need to know about it to call a PHP file that will create a text file on a button press?

see: How to write into a file in PHP.

How do you recieve the data from the POST in the server?

I'm glad you ask... Since you are a newb begginer, I'll give you a little template you can follow:

<?php
    if ($_SERVER['REQUEST_METHOD'] === 'POST')
    {
        //Ok we got a POST, probably from a FORM, read from $_POST.
        var_dump($_PSOT); //Use this to see what info we got!
    }
    else
    {
       //You could assume you got a GET
       var_dump($_GET); //Use this to see what info we got!
    }
 ?>
 <!DOCTYPE html>
 <html lang="en">
   <head>
     <meta char-set="utf-8">
     <title>Page title</title>
   </head>
   <body>
     <form action="" method="POST">
       <input type="text" value="default value, you can edit it" name="myfield">
       <input type="submit" value = "post">
     </form>
   </body>
 </html>

Note: you can remove var_dump, it is just for debugging purposes.

How do I...

I know the next stage, you will be asking how to:

1. how to pass variables form a PHP file to another?
2. how to remember the user / make a login?
3. how to avoid that anoying message the appears when you reload the page?

There is a single answer for that: Sessions.

I'll give a more extensive template for Post-Redirect-Get

<?php
    if ($_SERVER['REQUEST_METHOD'] === 'POST')
    {
        var_dump($_PSOT);
        //Do stuff...
        //Write results to session
        session_start();
        $_SESSION['stuff'] = $something;
        //You can store stuff such as the user ID, so you can remeember him.
        //redirect:
        header('Location: ', true, 303);
        //The redirection will cause the browser to request with GET
        //The results of the operation are in the session variable
        //It has empty location because we are redirecting to the same page
        //Otherwise use `header('Location: anotherpage.php', true, 303);`
        exit();
    }
    else
    {
        //You could assume you got a GET
        var_dump($_GET); //Use this to see what info we got!
        //Get stuff from session
        session_start();
        if (array_key_exists('stuff', $_SESSION))
        {
           $something = $_SESSION['stuff'];
           //we got stuff
           //later use present the results of the operation to the user.
        }
        //clear stuff from session:
        unset($_SESSION['stuff']);
        //set headers
        header('Content-Type: text/html; charset=utf-8');
        //This header is telling the browser what are we sending.
        //And it says we are sending HTML in UTF-8 encoding
    }
 ?>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta char-set="utf-8">
    <title>Page title</title>
  </head>
  <body>
    <?php if (isset($something)){ echo '<span>'.$something.'</span>'}?>;
    <form action="" method="POST">
      <input type="text" value="default value, you can edit it" name="myfield">
      <input type="submit" value = "post">
    </form>
  </body>
</html>

Please look at php.net for any function call you don't recognize. Also - if you don't have already - get a good tutorial on HTML5.

Also, use UTF-8 because UTF-8!

Notes:

I'm making a simple blog site for myself and I've got the code for the site and the javascript that can take the post I write in a textarea and display it immediately.

If are you using a CMS (Codepress, Joomla, Drupal... etc)? That make put some contraints on how you got to do things.

Also, if you are using a framework, you should look at their documentation or ask at their forum/mailing list/discussion page/contact or try to ask the authors.

Ok... but how do I Use Ajax anyway?

Well... Ajax is made easy by some JavaScript libraries. Since you are a begginer, I'll recomend jQuery.

So, let's send something to the server via Ajax with jQuery, I'll use $.post instead of $.ajax for this example.

<?php
    if ($_SERVER['REQUEST_METHOD'] === 'POST')
    {
        var_dump($_PSOT);
        header('Location: ', true, 303);
        exit();
    }
    else
    {
        var_dump($_GET);
        header('Content-Type: text/html; charset=utf-8');
    }
 ?>
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta char-set="utf-8">
    <title>Page title</title>
    <script>
        function ajaxmagic()
        {
            $.post(                             //call the server
                "test.php",                     //At this url
                {
                    field: "value",
                    name: "John"
                }                               //And send this data to it
            ).done(                             //And when it's done
                function(data)
                {
                    $('#fromAjax').html(data);  //Update here with the response
                }
            );
        }
    </script>
  </head>
  <body>
    <input type="button" value = "use ajax", onclick="ajaxmagic()">
    <span id="fromAjax"></span>
  </body>
</html>

The above code will send a POST request to the page test.php.

Note: You can mix sessions with ajax and stuff if you want.

How do I...

1. How do I connect to the database?
2. How do I prevent SQL injection?
3. Why shouldn't I use Mysql_* functions?

... for these or any other, please make another questions. That's too much for this one.

You can use CSS3 media query for this. Write like this:

CSS

.wrapper { 
  border : 2px solid #000; 
  overflow:hidden;
}

.wrapper div {
   min-height: 200px;
   padding: 10px;
}
#one {
  background-color: gray;
  float:left; 
  margin-right:20px;
  width:140px;
  border-right:2px solid #000;
}
#two { 
  background-color: white;
  overflow:hidden;
  margin:10px;
  border:2px dashed #ccc;
  min-height:170px;
}

@media screen and (max-width: 400px) {
   #one { 
    float: none;
    margin-right:0;
    width:auto;
    border:0;
    border-bottom:2px solid #000;    
  }
}

HTML

<div class="wrapper">
    <div id="one">one</div>
    <div id="two">two</div>
</div>

Check this for more http://jsfiddle.net/cUCvY/1/

you need only set default value to parameters(you do not need the Route attribute):

public IHttpActionResult Get(string apc = null, string xpc = null, int? sku = null)
{ ... }

If you use Eclipse Collections:

MutableSet<Integer> mSet = Lists.mutable.with(1, 2, 3).toSet();
MutableIntSet mIntSet = IntLists.mutable.with(1, 2, 3).toSet();

The MutableSet interface extends java.util.Set whereas the MutableIntSet interface does not. You can also convert any Iterable to a Set using the Sets factory class.

Set<Integer> set = Sets.mutable.withAll(List.of(1, 2, 3));

There is more explanation of the mutable factories available in Eclipse Collections here.

If you want an ImmutableSet from a List, you can use the Sets factory as follows:

ImmutableSet<Integer> immutableSet = Sets.immutable.withAll(List.of(1, 2, 3))

Note: I am a committer for Eclipse Collections

Warn/confirm User if Back button is Pressed is as below.

window.onbeforeunload = function() { return "Your work will be lost."; };

You can get more information using below mentioned links.

Disable Back Button in Browser using JavaScript

I hope this will help to you.

var fields = {
teste:
{
    Acess:
    {
        Edit: true,
      View: false

      }
 },
teste1:
{
    Acess:
    {
        Edit: false,
      View: false

      }
  }
};

console.log(find(fields,'teste'));
function find(fields,field){
    for(key in fields){
        if(key == field){
        return true;
    }
}
return false;
}

If you have one Object with multiply objects inside, if you want know if some object are include on Master object, just put find(MasterObject,'Object to Search'), this function will return the response if exist or not (TRUE or FALSE), I hope help with this, can see the exemple on JSFiddle.

or an ORACLE version:

delete
  from table_name
 where trunc(table_name.date) > to_date('01/01/2009','mm/dd/yyyy') 

Checkout intent properties like no history , clear back stack etc ... Intent.setFlags

Intent mStartActivity = new Intent(HomeActivity.this, SplashScreen.class);
int mPendingIntentId = 123456;
PendingIntent mPendingIntent = PendingIntent.getActivity(HomeActivity.this, mPendingIntentId, mStartActivity,
PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager mgr = (AlarmManager) HomeActivity.this.getSystemService(Context.ALARM_SERVICE);
mgr.set(AlarmManager.RTC, System.currentTimeMillis() + 100, mPendingIntent);
System.exit(0);

Try jQuery's delegate() function, like so:

$(document).ready(function(){
    $("div.custList table").delegate('tr', 'click', function() {
        alert("You clicked my <tr>!");
        //get <td> element values here!!??
    });
});

A delegate works in the same way as live() except that live() cannot be applied to chained items, whereas delegate() allows you to specify an element within an element to act on.

This answer is not for DevOps/ system admin guys, but for them who are using IDE like eclipse and facing invalid LOC header (bad signature) issue.

You can force update the maven dependencies, as follows:

This option is no longer supported in recent versions of karma:

see https://github.com/karma-runner/karma/issues/1731#issuecomment-174227054

The files array can be redefined using the CLI as such:

karma start --files=Array("test/Spec/services/myServiceSpec.js")

or escaped:

karma start --files=Array\(\"test/Spec/services/myServiceSpec.js\"\)

References

• karma-runner source: cli.js

• karma-runner source: config.js

I had the same problem while trying to commit my working copy. What I did was add the folder that Subversion reports as "path not found" to the ignore list. Commit (should succeed). Then add the same folder back to Subversion. Commit again.

from sys import exit
exit()

As a parameter you can pass an exit code, which will be returned to OS. Default is 0.

This is a complete setup in Rails, for my own reference. I'm happy if it helps you too.

the query:

Product.where("lower(name) = ?", name.downcase).first

the validator:

validates :name, presence: true, uniqueness: {case_sensitive: false}

the index (answer from Case-insensitive unique index in Rails/ActiveRecord?):

execute "CREATE UNIQUE INDEX index_products_on_lower_name ON products USING btree (lower(name));"

I wish there was a more beautiful way to do the first and the last, but then again, Rails and ActiveRecord is open source, we shouldn't complain - we can implement it ourselves and send pull request.

Not sure that stretching a background image is possible. If you find that it's not possible, or not reliable in all of your target browsers, you could try using a stretched img tag with z-index set lower, and position set to absolute so that other content appears on top of it.

Let us know what you end up doing.

Edit: What I suggested is basically what's in gabriel's link. So try that :)

• %lu for unsigned long
• %llu for unsigned long long

BlueBell's answer is right, you can do it by:

npm uninstall cordova ionic

Are you planning to re-install it? If you feel something's wrong which is causing problems then you should update npm and clean npm's cache.

npm cache clean -f
npm install npm -g

If problems still persist, I'd suggest re-install of NPM and Node.

npm uninstall node
apt-get purge npm
apt-get install npm
npm install node -g

Let me know if you face issues in the process.

This worked for me:

git fsck --full --no-reflogs --unreachable --lost-found
git show d6e883ff45be514397dcb641c5a914f40b938c86
git branch helpme 15e521b0f716269718bb4e4edc81442a6c11c139

You can also check for bootstrap datatable plugin as well for above issue.

It will have a large column table scrollable feature with lot of other options

$(document).ready(function() {
    $('#example').dataTable( {
        "scrollX": true
    } );
} );

for more info with example please check out this link

I had exactly the same problem, to solve it, you can do one of two things:

• Put all variables in System Variables instead of User and add the ones you want to PATH

Or

• Put all variables in User Variables, and create or edit the PATH variables in User Variable, not In System. The Path variables in System don't expand the User Variables.

If the above are all correct, but the problem is still present, you need to check the system Registry, in HKEY_CURRENT_USER\Environment, to make sure the "PATH" key type is REG_EXPAND_SZ (not REG_SZ).

Install these packages:

• Microsoft.Extensions.Configuration
• Microsoft.Extensions.Configuration.Binder
• Microsoft.Extensions.Configuration.EnvironmentVariables
• Microsoft.Extensions.Configuration.FileExtensions
• Microsoft.Extensions.Configuration.Json

Code:

static void Main(string[] args)
    {
        var environmentName = Environment.GetEnvironmentVariable("ENVIRONMENT");
        Console.WriteLine("ENVIRONMENT: " + environmentName);

        var builder = new ConfigurationBuilder()
           .SetBasePath(Directory.GetCurrentDirectory())
           .AddJsonFile("appsettings.json", false)
           .AddJsonFile($"appsettings.{environmentName}.json", true)
           .AddEnvironmentVariables();

        IConfigurationRoot configuration = builder.Build();
        var mySettingsConfig = configuration.Get<MySettingsConfig>();

        Console.WriteLine("URL: " + mySettingsConfig.Url);
        Console.WriteLine("NAME: " + mySettingsConfig.Name);

        Console.ReadKey();
    }

MySettingsConfig Class:

public class MySettingsConfig
{
    public string Url { get; set; }
    public string Name { get; set; }
}

Your appsettings can be as simple as this:

Also, set the appsettings files to Content / Copy if newer:

You might be interested in the SciPy Stats package. It has the percentile function you're after and many other statistical goodies.

percentile() is available in numpy too.

import numpy as np
a = np.array([1,2,3,4,5])
p = np.percentile(a, 50) # return 50th percentile, e.g median.
print p
3.0

This ticket leads me to believe they won't be integrating percentile() into numpy anytime soon.

In router.js just add code before calling get/post methods. It works for me without errors.

//Importing modules @Brahmmeswar
const express = require('express');
const router = express.Router();

const Contact = require('../models/contacts');

router.use(function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
    next();
  });

First you need to add textfield delegete in .h file. if not declare (BOOL)textFieldShouldReturn:(UITextField *)textField this method not called.so first add delegate and write keyboard hide code into that method.

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField resignFirstResponder];
    return YES;
}

try this one..

Use url as:https://graph.facebook.com/user_id/picture?type=square in src of img tag. type may be small,large.

For those having configuration in bin/www, just add the timeout parameter after http server creation.

var server = http.createServer(app);
/**
* Listen on provided port, on all network interfaces
*/
server.listen(port);
server.timeout=yourValueInMillisecond

Postman is a good solution and so is php fiddle. However to avoid putting in the GCM URL and the header information every time, you can also use this nifty GCM Notification Test Tool

Migrator cannot identify all the functions that need @objc Inferred Objective-C thunks marked as deprecated to help you find them
• Build warnings about deprecated methods
• Console messages when running deprecated thunks

You can do something like this:

$('.notice')
    .fadeIn()
    .animate({opacity: '+=0'}, 2000)   // Does nothing for 2000ms
    .fadeOut('fast');

Sadly, you can't just do .animate({}, 2000) -- I think this is a bug, and will report it.

Take a look at this commented code:

import Foundation
import UserNotifications
import ObjectMapper

class AppDelegate{

    let center = UNUserNotificationCenter.current()
}

extension AppDelegate {

    struct Keys {
        static let deviceToken = "deviceToken"
    }

    // MARK: - UIApplicationDelegate Methods
    func application(_: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

        if let tokenData: String = String(data: deviceToken, encoding: String.Encoding.utf8) {
            debugPrint("Device Push Token \(tokenData)")
        }

        // Prepare the Device Token for Registration (remove spaces and < >)
        setDeviceToken(deviceToken)
    }

    func application(_: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
        debugPrint(error.localizedDescription)
    }

    // MARK: - Private Methods
    /**
     Register remote notification to send notifications
     */
    func registerRemoteNotification() {

        center.requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in

            // Enable or disable features based on authorization.
            if granted  == true {

                DispatchQueue.main.async {
                    UIApplication.shared.registerForRemoteNotifications()
                }
            } else {
                debugPrint("User denied the permissions")
            }
        }
    }

    /**
     Deregister remote notification
     */
    func deregisterRemoteNotification() {
        UIApplication.shared.unregisterForRemoteNotifications()
    }

    func setDeviceToken(_ token: Data) {
        let token = token.map { String(format: "%02.2hhx", arguments: [$0]) }.joined()
        UserDefaults.setObject(token as AnyObject?, forKey: “deviceToken”)
    }

    class func deviceToken() -> String {
        let deviceToken: String? = UserDefaults.objectForKey(“deviceToken”) as? String

        if isObjectInitialized(deviceToken as AnyObject?) {
            return deviceToken!
        }

        return "123"
    }

    func isObjectInitialized(_ value: AnyObject?) -> Bool {
        guard let _ = value else {
                return false
         }
            return true
    }
}

extension AppDelegate: UNUserNotificationCenterDelegate {

    func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping(UNNotificationPresentationOptions) -> Swift.Void) {

        ("\(notification.request.content.userInfo) Identifier: \(notification.request.identifier)")

        completionHandler([.alert, .badge, .sound])
    }

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping() -> Swift.Void) {

        debugPrint("\(response.notification.request.content.userInfo) Identifier: \(response.notification.request.identifier)")

    }
}

Let me know if there is any problem!

I had a similar problem. As I got a Character from my XML child I had to convert it first to a String (or Integer, if you expect one). The following shows how I solved the problem.

foreach($xml->children() as $newInstr){
        $iInstrument = new Instrument($newInstr['id'],$newInstr->Naam,$newInstr->Key);
        $arrInstruments->offsetSet((String)$iInstrument->getID(), $iInstrument);
    }

If you need check ranges you are probably better off with if and else if statements, like so:

if (range > 0 && range < 5)
{
    // ..
}
else if (range > 5 && range < 9)
{
    // ..
}
else
{
    // Fall through
}

A switch could get large on bigger ranges.

As it turns out you can do this in form constructor (init function) or after form class was initiated. This is sometimes required if you are not writing your own form and that form is coming from somewhere else -

def some_view(request):
    add_css_to_fields = ['list','of','fields']
    if request.method == 'POST':
        form = SomeForm(request.POST)
        if form.is_valid():
            return HttpResponseRedirect('/thanks/')
    else:
        form = SomeForm()

    for key in form.fields.keys():
        if key in add_css_to_fields:
            field = form.fields[key]
            css_addition = 'css_addition '
            css = field.widget.attrs.get('class', '')
            field.widget.attrs['class'] = css_addition + css_classes

    return render(request, 'template_name.html', {'form': form})

You could go a step further and break into the puppet code using a breakpoint.

http://logicminds.github.io/blog/2017/04/25/break-into-your-puppet-code/

This would only work with puppet apply or using a rspec test. Or you can manually type your code into the debugger console. Note: puppet still needs to know where your module code is at if you haven't set already.

gem install puppet puppet-debugger 
puppet module install nwops/debug
cat > test.pp <<'EOF'
$var1 = 'test'
debug::break()
EOF

Should show something like.

puppet apply test.pp
From file: test.pp
     1: $var1 = 'test'
     2: # add 'debug::break()' where you want to stop in your code
  => 3: debug::break()
1:>> $var1
=> "test"
2:>>

https://www.puppet-debugger.com

From @Ben Bolker:

[T]his has nothing specifically to do with dplyr::filter()

From @Marat Talipov:

[A]ny comparison with NA, including NA==NA, will return NA

From a related answer by @farnsy:

The == operator does not treat NA's as you would expect it to.

Think of NA as meaning "I don't know what's there". The correct answer to 3 > NA is obviously NA because we don't know if the missing value is larger than 3 or not. Well, it's the same for NA == NA. They are both missing values but the true values could be quite different, so the correct answer is "I don't know."

R doesn't know what you are doing in your analysis, so instead of potentially introducing bugs that would later end up being published an embarrassing you, it doesn't allow comparison operators to think NA is a value.

I usually get this usecase when I'm copying a code snippet from a file and I want to paste it into a console without adding unnecessary new lines, I ended up doing a bash alias
( i called it oneline if you are curious )

xsel -b -o | tr -d '\n' | tr -s ' ' | xsel -b -i

• xsel -b -o reads my clipboard

• tr -d '\n' removes new lines

• tr -s ' ' removes recurring spaces

• xsel -b -i pushes this back to my clipboard

after that I would paste the new contents of the clipboard into oneline in a console or whatever.

For Android, Volley is a good place to get started. For all platforms, you might also want to check out ktor client or http4k which are both good libraries.

However, you can also use standard Java libraries like java.net.HttpURLConnection which is part of the Java SDK:

fun sendGet() {
    val url = URL("http://www.google.com/")

    with(url.openConnection() as HttpURLConnection) {
        requestMethod = "GET"  // optional default is GET

        println("\nSent 'GET' request to URL : $url; Response Code : $responseCode")

        inputStream.bufferedReader().use {
            it.lines().forEach { line ->
                println(line)
            }
        }
    }
}

Or simpler:

URL("https://google.com").readText()

A nice WebKit-only solution that takes advantage of the background-clip: text support: http://jsfiddle.net/sandro_paganotti/wLkVt/

span{
   font-size: 100px;
   background: linear-gradient(to right, black, black 50%, grey 50%, grey);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
}

In my case for Bootstrap4:

<body class="d-flex flex-column min-vh-100">
    <div class="wrapper flex-grow-1"></div>
    <footer></footer>
</body>

If you would like a software tool to do this, you might like to check out this step-by-step guide:

"How to Validate and Import Excel spreadsheet to SQL Server database"

http://leansoftware.net/forum/en-us/help/excel-database-tasks/worked-examples/how-to-import-excel-spreadsheet-to-sql-server-data.aspx

Like this:

{{ form_widget(form.description, { 'attr': {'class': 'form-control', 'rows': '5', 'style': 'resize:none;'} }) }}

Starting with the code from the other question:

class MyClass {
  private static MyClass myClass = new MyClass();
  private static final Object obj = new Object();
  public MyClass() {
    System.out.println(obj); // will print null once
  }
}

A reference to this class will start initialization. First, the class will be marked as initialized. Then the first static field will be initialized with a new instance of MyClass(). Note that myClass is immediately given a reference to a blank MyClass instance. The space is there, but all values are null. The constructor is now executed and prints obj, which is null.

Now back to initializing the class: obj is made a reference to a new real object, and we're done.

If this was set off by a statement like: MyClass mc = new MyClass(); space for a new MyClass instance is again allocated (and the reference placed in mc). The constructor is again executed and again prints obj, which now is not null.

The real trick here is that when you use new, as in WhatEverItIs weii = new WhatEverItIs( p1, p2 ); weii is immediately given a reference to a bit of nulled memory. The JVM will then go on to initialize values and run the constructor. But if you somehow reference weii before it does so--by referencing it from another thread or or by referencing from the class initialization, for instance--you are looking at a class instance filled with null values.

Well, here's a quick hack:

>>> clear = "\n" * 100
>>> print clear
>>> ...do some other stuff...
>>> print clear

Or to save some typing, put this file in your python search path:

# wiper.py
class Wipe(object):
    def __repr__(self):
        return '\n'*1000

wipe = Wipe()

Then you can do this from the interpreter all you like :)

>>> from wiper import wipe
>>> wipe
>>> wipe
>>> wipe

UPDATE table1
SET column1 = (SELECT expression1
               FROM table2
               WHERE conditions)
[WHERE conditions];

Keep it simple!

var classes = $(this).parent('div').attr('class');

There doesn't seem to be a way to get the INSERT statements from the MySQL console, but you can get them using mysqldump like Rob suggested. Specify -t to omit table creation.

mysqldump -t -u MyUserName -pMyPassword MyDatabase MyTable --where="ID = 10"

Modern Javascript implementations with the template syntax using backticks are also an easy way to assign an HTML block of code to a variable:

    const firstName = 'Sam';
    const fullName = 'Sam Smith';
    const htmlString = `<h1>Hello ${fullName}!</h1><p>This is some content \
        that will display. You can even inject your first name, ${firstName}, \
        in the code.</p><p><a href="http://www.google.com">Search</a> for \
        stuff on the Google website.</p>`;

There are two ways to access properties of objects:

var obj = {a: 'foo', b: 'bar'};

obj.a //foo
obj['b'] //bar

Or, if you need to dynamically do it:

var key = 'b';
obj[key] //bar

If you don't already have it as an object, you'll need to convert it.

For a more complex example, let's assume you have an array of objects that represent users:

var users = [{name: 'Corbin', age: 20, favoriteFoods: ['ice cream', 'pizza']},
             {name: 'John', age: 25, favoriteFoods: ['ice cream', 'skittle']}];

To access the age property of the second user, you would use users[1].age. To access the second "favoriteFood" of the first user, you'd use users[0].favoriteFoods[2].

Another example: obj[2].key[3]["some key"]

That would access the 3rd element of an array named 2. Then, it would access 'key' in that array, go to the third element of that, and then access the property name some key.

As Amadan noted, it might be worth also discussing how to loop over different structures.

To loop over an array, you can use a simple for loop:

var arr = ['a', 'b', 'c'],
    i;
for (i = 0; i < arr.length; ++i) {
    console.log(arr[i]);
}

To loop over an object is a bit more complicated. In the case that you're absolutely positive that the object is a plain object, you can use a plain for (x in obj) { } loop, but it's a lot safer to add in a hasOwnProperty check. This is necessary in situations where you cannot verify that the object does not have inherited properties. (It also future proofs the code a bit.)

var user = {name: 'Corbin', age: 20, location: 'USA'},
    key;

for (key in user) {
    if (user.hasOwnProperty(key)) {
        console.log(key + " = " + user[key]);
    }
}    

(Note that I've assumed whatever JS implementation you're using has console.log. If not, you could use alert or some kind of DOM manipulation instead.)

find the position of the nth occurrence of str2 in str1(same order of parameters as Oracle SQL INSTR), returns 0 if not found

instr <- function(str1,str2,startpos=1,n=1){
    aa=unlist(strsplit(substring(str1,startpos),str2))
    if(length(aa) < n+1 ) return(0);
    return(sum(nchar(aa[1:n])) + startpos+(n-1)*nchar(str2) )
}


instr('xxabcdefabdddfabx','ab')
[1] 3
instr('xxabcdefabdddfabx','ab',1,3)
[1] 15
instr('xxabcdefabdddfabx','xx',2,1)
[1] 0

try this:

powershell "C:\Dummy Directory 1\Foo.ps1 'C:\Dummy Directory 2\File.txt'"

Here's an approach in Swift, using a UIButton extension to add an IBInspectable, called highlightedBackgroundColor. Similar to subclassing, without requiring a subclass.

private var HighlightedBackgroundColorKey = 0
private var NormalBackgroundColorKey = 0

extension UIButton {

    @IBInspectable var highlightedBackgroundColor: UIColor? {
        get {
            return objc_getAssociatedObject(self, &HighlightedBackgroundColorKey) as? UIColor
        }

        set(newValue) {
            objc_setAssociatedObject(self,
                &HighlightedBackgroundColorKey, newValue, UInt(OBJC_ASSOCIATION_RETAIN))
        }
    }

    private var normalBackgroundColor: UIColor? {
        get {
            return objc_getAssociatedObject(self, &NormalBackgroundColorKey) as? UIColor
        }

        set(newValue) {
            objc_setAssociatedObject(self,
                &NormalBackgroundColorKey, newValue, UInt(OBJC_ASSOCIATION_RETAIN))
        }
    }

    override public var backgroundColor: UIColor? {
        didSet {
            if !highlighted {
                normalBackgroundColor = backgroundColor
            }
        }
    }

    override public var highlighted: Bool {
        didSet {
            if let highlightedBackgroundColor = self.highlightedBackgroundColor {
                if highlighted {
                    backgroundColor = highlightedBackgroundColor
                } else {
                    backgroundColor = normalBackgroundColor
                }
            }
        }
    }
}

I hope this helps.

A node can be a number of different kinds of things: some text, a comment, an element, an entity, etc. An element is a particular kind of node.

This is what I did based on some of the other answers here:

function measureText(text, font) {_x000D_
 const span = document.createElement('span');_x000D_
 span.appendChild(document.createTextNode(text));_x000D_
 Object.assign(span.style, {_x000D_
  font: font,_x000D_
  margin: '0',_x000D_
  padding: '0',_x000D_
  border: '0',_x000D_
  whiteSpace: 'nowrap'_x000D_
 });_x000D_
 document.body.appendChild(span);_x000D_
 const {width, height} = span.getBoundingClientRect();_x000D_
 span.remove();_x000D_
 return {width, height};_x000D_
}_x000D_
_x000D_
var font = "italic 100px Georgia";_x000D_
var text = "abc this is a test";_x000D_
console.log(measureText(text, font));

You don't mention the API version, but since API 11 there's the method WebViewClient.shouldInterceptRequest

Maybe this could help?

For pre 1.7 i would say an equivalent to Integer.compare(x, y) is:

Integer.valueOf(x).compareTo(y);

To just get the index column names df.index.names will work for both a single Index or MultiIndex as of the most recent version of pandas.

As someone who found this while trying to find the best way to get a list of index names + column names, I would have found this answer useful:

names = list(filter(None, df.index.names + df.columns.values.tolist()))

This works for no index, single column Index, or MultiIndex. It avoids calling reset_index() which has an unnecessary performance hit for such a simple operation. I'm surprised there isn't a built in method for this (that I've come across). I guess I run into needing this more often because I'm shuttling data from databases where the dataframe index maps to a primary/unique key, but is really just another column to me.

I create a div at the end of the body like that:

<div v-if="isPopup" class="outside" v-on:click="away()"></div>

Where .outside is :

.outside {
  width: 100vw;
  height: 100vh;
  position: fixed;
  top: 0px;
  left: 0px;
}

And away() is a method in Vue instance :

away() {
 this.isPopup = false;
}

Easy, works well.

I finally fixed this using the Google's camera app. It gets the phone's orientation by using a sensor and then sets the EXIF tag appropriately. The JPEG which comes out of the camera is not oriented automatically.

Also, the camera preview works properly only in the landscape mode. If you need your activity layout to be oriented in portrait, you will have to do it manually using the value from the orientation sensor.

If you get the IP address from a DHCP server, you can also set the server to send a DNS server. Or add the nameserver 8.8.8.8 into /etc/resolvconf/resolv.conf.d/base file. The information in this file is included in the resolver configuration file even when no interfaces are configured.

This is fast and works for small and (arbitrary) large ints:

def Dump(n): 
  s = '%x' % n
  if len(s) & 1:
    s = '0' + s
  return s.decode('hex')
print repr(Dump(1245427))  #: '\x13\x00\xf3'

A simple answer could be:

System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})); // 0
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1})); // 1
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0})); // 256
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0})); // 65536
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0})); // 16777216
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0})); // 4294967296
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0})); // 1099511627776
System.out.println(new BigInteger(new byte[]{0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0})); // 281474976710656
System.out.println(new BigInteger(new byte[]{0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0})); // 72057594037927936
System.out.println(new BigInteger(new byte[]{0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0})); // 18446744073709551616
System.out.println(new BigInteger(new byte[]{0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0})); // 4722366482869645213696
System.out.println(new BigInteger(new byte[]{1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})); // 1208925819614629174706176
System.out.println(Long.MAX_VALUE);                                              // 9223372036854775807

• Do you really write exception safe code?

Well, I certainly intend to.

• Are you sure your last "production ready" code is exception safe?

I'm sure that my 24/7 servers built using exceptions run 24/7 and don't leak memory.

• Can you even be sure, that it is?

It's very difficult to be sure that any code is correct. Typically, one can only go by results

• Do you know and/or actually use alternatives that work?

No. Using exceptions is cleaner and easier than any of the alternatives I've used over the last 30 years in programming.

Describe table syntax

describe table schemaName.TableName

You can use this too:

<?php
    $youtube_view_count = json_decode(file_get_contents('http://gdata.youtube.com/feeds/api/videos/wGG543FeHOE?v=2&alt=json'))->entry->{'yt$statistics'}->viewCount;
    echo $youtube_view_count;
    ?>

One more approach for removing all non-numeric characters from a string:

String newString = oldString.replaceAll("[^0-9]", "");