Due to difficulties to clearly distinguish between URI and URL, as far as I remember W3C does not make a difference any longer between URI and URL (http://www.w3.org/Addressing/).

I wrote this function:

public static String encode(@NonNull String uriString) {
    if (TextUtils.isEmpty(uriString)) {
        Assert.fail("Uri string cannot be empty!");
        return uriString;
    }
    // getQueryParameterNames is not exist then cannot iterate on queries
    if (Build.VERSION.SDK_INT < 11) {
        return uriString;
    }

    // Check if uri has valid characters
    // See https://tools.ietf.org/html/rfc3986
    Pattern allowedUrlCharacters = Pattern.compile("([A-Za-z0-9_.~:/?\\#\\[\\]@!$&'()*+,;" +
            "=-]|%[0-9a-fA-F]{2})+");
    Matcher matcher = allowedUrlCharacters.matcher(uriString);
    String validUri = null;
    if (matcher.find()) {
        validUri = matcher.group();
    }
    if (TextUtils.isEmpty(validUri) || uriString.length() == validUri.length()) {
        return uriString;
    }

    // The uriString is not encoded. Then recreate the uri and encode it this time
    Uri uri = Uri.parse(uriString);
    Uri.Builder uriBuilder = new Uri.Builder()
            .scheme(uri.getScheme())
            .authority(uri.getAuthority());
    for (String path : uri.getPathSegments()) {
        uriBuilder.appendPath(path);
    }
    for (String key : uri.getQueryParameterNames()) {
        uriBuilder.appendQueryParameter(key, uri.getQueryParameter(key));
    }
    String correctUrl = uriBuilder.build().toString();
    return correctUrl;
}

In typescript:

export class WebsocketUtils {

    public static websocketUrlByPath(path) {
        return this.websocketProtocolByLocation() +
            window.location.hostname +
            this.websocketPortWithColonByLocation() +
            window.location.pathname +
            path;
    }

    private static websocketProtocolByLocation() {
        return window.location.protocol === "https:" ? "wss://" : "ws://";
    }

    private static websocketPortWithColonByLocation() {
        const defaultPort = window.location.protocol === "https:" ? "443" : "80";
        if (window.location.port !== defaultPort) {
            return ":" + window.location.port;
        } else {
            return "";
        }
    }
}

Usage:

alert(WebsocketUtils.websocketUrlByPath("/websocket"));

You should construct your string as URI object and Authority property returns what you need.

Please try the following code

Uri.fromFile(new File("/sdcard/sample.jpg"))

If you're using RestangularV2 to post to a spring controller in java you can get this exception if you use RestangularV2.one() instead of RestangularV2.all()

I worked around this by using UriBuilder instead.

UriBuilder builder = new UriBuilder(slct.Text);

if (DeleteFileOnServer(builder.Uri))
{
   ...
}

A perfect solution for share text and Image via Intent is :

On your share button click :

Bitmap image;
shareimagebutton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            URL url = null;
            try {
                url = new URL("https://firebasestorage.googleapis.com/v0/b/fir-notificationdemo-dbefb.appspot.com/o/abc_text_select_handle_middle_mtrl_light.png?alt=media&token=c624ab1b-f840-479e-9e0d-6fe8142478e8");
                image = BitmapFactory.decodeStream(url.openConnection().getInputStream());
            } catch (IOException e) {
                e.printStackTrace();
            }
            shareBitmap(image);
        }
    });

Then Create shareBitmap(image) method.

private void shareBitmap(Bitmap bitmap) {

    final String shareText = getString(R.string.share_text) + " "
            + getString(R.string.app_name) + " developed by "
            + "https://play.google.com/store/apps/details?id=" + getPackageName() + ": \n\n";

    try {
        File file = new File(this.getExternalCacheDir(), "share.png");
        FileOutputStream fOut = new FileOutputStream(file);
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
        fOut.flush();
        fOut.close();
        file.setReadable(true, false);
        final Intent intent = new Intent(android.content.Intent.ACTION_SEND);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.putExtra(Intent.EXTRA_TEXT, shareText);
        intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(file));
        intent.setType("image/png");
        startActivity(Intent.createChooser(intent, "Share image via"));

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

}

And then just test It..!!

For a pure Ruby solution combine URI.parse with CGI.parse (this can be used even if Rails/Rack etc. are not required):

CGI.parse(URI.parse(url).query) 
# =>  {"name1" => ["value1"], "name2" => ["value1", "value2", ...] }

using System.IO;

private String GetFileName(String hrefLink)
{
    return Path.GetFileName(hrefLink.Replace("/", "\\"));
}

THis assumes, of course, that you've parsed out the file name.

EDIT #2:

using System.IO;

private String GetFileName(String hrefLink)
{
    return Path.GetFileName(Uri.UnescapeDataString(hrefLink).Replace("/", "\\"));
}

This should handle spaces and the like in the file name.

Try this one. It is working for me.

handler.postDelayed(new Runnable() {
    @Override
    public void run() {
        // Set up the projection (we only need the ID)
        String[] projection = { MediaStore.Images.Media._ID };

        // Match on the file path
        String selection = MediaStore.Images.Media.DATA + " = ?";
        String[] selectionArgs = new String[] { imageFile.getAbsolutePath() };

        // Query for the ID of the media matching the file path
        Uri queryUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
        ContentResolver contentResolver = getActivity().getContentResolver();
        Cursor c = contentResolver.query(queryUri, projection, selection, selectionArgs, null);

        if (c != null) {
            if (c.moveToFirst()) {
                // We found the ID. Deleting the item via the content provider will also remove the file
                long id = c.getLong(c.getColumnIndexOrThrow(MediaStore.Images.Media._ID));
                Uri deleteUri = ContentUris.withAppendedId(queryUri, id);
                contentResolver.delete(deleteUri, null, null);
            } else {
                // File not found in media store DB
            }
            c.close();
        }
    }
}, 5000);

Excellent answer from above turned into a simple utility method.

private Uri buildURI(String url, Map<String, String> params) {

    // build url with parameters.
    Uri.Builder builder = Uri.parse(url).buildUpon();
    for (Map.Entry<String, String> entry : params.entrySet()) {
        builder.appendQueryParameter(entry.getKey(), entry.getValue());
    }

    return builder.build();
}

You can use get File path from diffrent SDk versions

Use RealPathUtils for it

public class RealPathUtils {

@SuppressLint("NewApi")
public static String getRealPathFromURI_API19(Context context, Uri uri){
    String filePath = "";
    String wholeID = DocumentsContract.getDocumentId(uri);

    // Split at colon, use second item in the array
    String id = wholeID.split(":")[1];

    String[] column = { MediaStore.Images.Media.DATA };

    // where id is equal to
    String sel = MediaStore.Images.Media._ID + "=?";

    Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
            column, sel, new String[]{ id }, null);

    int columnIndex = cursor.getColumnIndex(column[0]);

    if (cursor.moveToFirst()) {
        filePath = cursor.getString(columnIndex);
    }
    cursor.close();
    return filePath;
}


@SuppressLint("NewApi")
public static String getRealPathFromURI_API11to18(Context context, Uri contentUri) {
    String[] proj = { MediaStore.Images.Media.DATA };
    String result = null;

    CursorLoader cursorLoader = new CursorLoader(
            context,
            contentUri, proj, null, null, null);
    Cursor cursor = cursorLoader.loadInBackground();

    if(cursor != null){
        int column_index =
                cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        result = cursor.getString(column_index);
    }
    return result;
}

public static String getRealPathFromURI_BelowAPI11(Context context, Uri contentUri){
    String[] proj = { MediaStore.Images.Media.DATA };
    Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
    int column_index
            = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    return cursor.getString(column_index);
}
}

**Now get the file Path from URI **

 String path = null;
                if (Build.VERSION.SDK_INT < 11)
                    path = RealPathUtils.getRealPathFromURI_BelowAPI11(MainActivity.this, uri);

                    // SDK >= 11 && SDK < 19
                else if (Build.VERSION.SDK_INT < 19)
                    path = RealPathUtils.getRealPathFromURI_API11to18(MainActivity.this, uri);

                    // SDK > 19 (Android 4.4)
                else
                    path = RealPathUtils.getRealPathFromURI_API19(MainActivity.this, uri);
                Log.d(TAG, "File Path: " + path);
                // Get the file instance
                 File file = new File(path);

Be sure ,your assets folder put in correct position.

If you come across Android Java SDK;

This solution might be too late but it's the latest solution today.

You can use the below way to get the value of the some query, if there is no value it will return null.

String some = Uri.parse(url).getQueryParameter("some");

In order to get all the names of the query collection.

Set<String> names = Uri.parse(url).getQueryParameterNames();

Here's the correct way of doing it:

protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == RESULT_OK)
    {
        Uri imageUri = data.getData();
        Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), imageUri);
    }
}

If you need to load very large images, the following code will load it in in tiles (avoiding large memory allocations):

BitmapRegionDecoder decoder = BitmapRegionDecoder.newInstance(myStream, false);  
Bitmap region = decoder.decodeRegion(new Rect(10, 10, 50, 50), null);

See the answer here

Possibly mine isn't a great answer but here goes.

Since working more with truly RESTful web services over HTTP, I've tried to steer people away from using the term endpoint since it has no clear definition, and instead use the language of REST which is resources and resource locations.

To my mind, endpoint is a TCP term. It's conflated with HTTP because part of the URL identifies a listening server.

So resource isn't a newer term, I don't think, I think endpoint was always misappropriated and we're realising that as we're getting our heads around REST as a style of API.

Edit

I blogged about this.

https://medium.com/@lukepuplett/stop-saying-endpoints-92c19e33e819

It is recommended to use the spinal-case (which is highlighted by RFC3986), this case is used by Google, PayPal, and other big companies.

source:- https://blog.restcase.com/5-basic-rest-api-design-guidelines/

Get the input stream using content resolver

InputStream inputStream = getContentResolver().openInputStream(uri);

Then copy the input stream into a file

FileUtils.copyInputStreamToFile(inputStream, file);

Sample utility method:

private File toFile(Uri uri) throws IOException {
        String displayName = "";
        Cursor cursor = getContentResolver().query(uri, null, null, null, null);

        if(cursor != null && cursor.moveToFirst()){
            try {
                displayName = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
            }finally {
                cursor.close();
            }
        }

        File file =  File.createTempFile(
                FilenameUtils.getBaseName(displayName),
                "."+FilenameUtils.getExtension(displayName)
        );
        InputStream inputStream = getContentResolver().openInputStream(uri);
        FileUtils.copyInputStreamToFile(inputStream, file);
        return file;
    }

Note: This answer addresses part of the problem. For a complete solution (in the form of a library), look at Paul Burke's answer.

You could use the URI to obtain document id, and then query either MediaStore.Images.Media.EXTERNAL_CONTENT_URI or MediaStore.Images.Media.INTERNAL_CONTENT_URI (depending on the SD card situation).

To get document id:

// Will return "image:x*"
String wholeID = DocumentsContract.getDocumentId(uriThatYouCurrentlyHave);

// Split at colon, use second item in the array
String id = wholeID.split(":")[1];

String[] column = { MediaStore.Images.Media.DATA };     

// where id is equal to             
String sel = MediaStore.Images.Media._ID + "=?";

Cursor cursor = getContentResolver().
                          query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, 
                          column, sel, new String[]{ id }, null);

String filePath = "";

int columnIndex = cursor.getColumnIndex(column[0]);

if (cursor.moveToFirst()) {
    filePath = cursor.getString(columnIndex);
}   

cursor.close();

Reference: I'm not able to find the post that this solution is taken from. I wanted to ask the original poster to contribute here. Will look some more tonight.

Trying to handle the URI with content:// scheme by calling ContentResolver.query()is not a good solution. On HTC Desire running 4.2.2 you could get NULL as a query result.

Why not to use ContentResolver instead? https://stackoverflow.com/a/29141800/3205334

Microsoft Azure offers a framework that makes it easy to perform this. http://azure.github.io/azure-mobile-services/iOS/v2/Classes/MSTable.html#//api/name/readWithQueryString:completion:

Try that:

bool IsValidURL(string URL)
{
    string Pattern = @"^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$";
    Regex Rgx = new Regex(Pattern, RegexOptions.Compiled | RegexOptions.IgnoreCase);
    return Rgx.IsMatch(URL);
}

It will accept URL like that:

• http(s)://www.example.com
• http(s)://stackoverflow.example.com
• http(s)://www.example.com/page
• http(s)://www.example.com/page?id=1&product=2
• http(s)://www.example.com/page#start
• http(s)://www.example.com:8080
• http(s)://127.0.0.1
• 127.0.0.1
• www.example.com
• example.com

redirected uri is the location where the user will be redirected after successfully login to your app. for example to get access token for your app in facebook you need to subimt redirected uri which is nothing only the app Domain that your provide when you create your facebook app.

For me is better to have a schema that you can map directly to code (easy to automate), mainly because code is what is going to be at both ends.

GET  /orders          <---> orders 
POST /orders          <---> orders.push(data)
GET  /orders/1        <---> orders[1]
PUT  /orders/1        <---> orders[1] = data
GET  /orders/1/lines  <---> orders[1].lines
POST /orders/1/lines  <---> orders[1].lines.push(data) 

Even shorter way, may require newer ASP.Net:

string authority = Request.Url.GetComponents(UriComponents.SchemeAndServer,UriFormat.Unescaped)

The UriComponents enum lets you specify which component(s) of the URI you want to include.

string baseUrl = Request.Url.GetLeftPart(UriPartial.Authority)

That's it ;)

$product_id = $this->input->get('id', TRUE);
echo $product_id;

It works for me for opening small text file... I didn't try in other file

protected void viewhelper(Intent intent) {
    Uri a = intent.getData();
    if (!a.toString().startsWith("content:")) {
        return;
    }
    //Ok Let's do it
    String content = readUri(a);
    //do something with this content
}

here is the readUri(Uri uri) method

private String readUri(Uri uri) {
    InputStream inputStream = null;
    try {
        inputStream = getContentResolver().openInputStream(uri);
        if (inputStream != null) {
            byte[] buffer = new byte[1024];
            int result;
            String content = "";
            while ((result = inputStream.read(buffer)) != -1) {
                content = content.concat(new String(buffer, 0, result));
            }
            return content;
        }
    } catch (IOException e) {
        Log.e("receiver", "IOException when reading uri", e);
    } finally {
        if (inputStream != null) {
            try {
                inputStream.close();
            } catch (IOException e) {
                Log.e("receiver", "IOException when closing stream", e);
            }
        }
    }
    return null;
}

I got it from this repository https://github.com/zhutq/android-file-provider-demo/blob/master/FileReceiver/app/src/main/java/com/demo/filereceiver/MainActivity.java
I modified some code so that it work.

Manifest file:

    <activity android:name=".MainActivity">
        <intent-filter >
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:mimeType="*/*" />
        </intent-filter>
    </activity>

You need to add

@Override
protected void onCreate(Bundle savedInstanceState) {
    /*
     *    Your OnCreate
     */
    Intent intent = getIntent();
    String action = intent.getAction();
    String type = intent.getType();

    //VIEW"
    if (Intent.ACTION_VIEW.equals(action) && type != null) {
        viewhelper(intent); // Handle text being sent
    }
  }

You are definitely searching for this

Yii::app()->request->pathInfo

Use the ticks value. It's quite simple to rebuild into a DateTime structure

 Int64 nTicks = DateTime.Now.Ticks;
 ....
 DateTime dtTime = new DateTime(nTicks);

The solutions above do not work on Linux.

Using .NET Core, attempting to execute new Uri("/home/foo/README.md") results in an exception:

Unhandled Exception: System.UriFormatException: Invalid URI: The format of the URI could not be determined.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind)
   at System.Uri..ctor(String uriString)
   ...

You need to give the CLR some hints about what sort of URL you have.

This works:

Uri fileUri = new Uri(new Uri("file://"), "home/foo/README.md");

...and the string returned by fileUri.ToString() is "file:///home/foo/README.md"

This works on Windows, too.

new Uri(new Uri("file://"), @"C:\Users\foo\README.md").ToString()

...emits "file:///C:/Users/foo/README.md"

Uri.parse(STRING);

See doc:

String: an RFC 2396-compliant, encoded URI

Url must be canonicalized before using, like this:

Uri.parse(Uri.decode(STRING));

URL -- Uniform Resource Locator

Contains information about how to fetch a resource from its location. For example:

• http://example.com/mypage.html
• ftp://example.com/download.zip
• mailto:[email protected]
• file:///home/user/file.txt
• http://example.com/resource?foo=bar#fragment
• /other/link.html (A relative URL, only useful in the context of another URL)

URLs always start with a protocol (http) and usually contain information such as the network host name (example.com) and often a document path (/foo/mypage.html). URLs may have query parameters and fragment identifiers.

URN -- Uniform Resource Name

Identifies a resource by name. It always starts with the prefix urn: For example:

• urn:isbn:0451450523 to identify a book by its ISBN number.
• urn:uuid:6e8bc430-9c3a-11d9-9669-0800200c9a66 a globally unique identifier
• urn:publishing:book - An XML namespace that identifies the document as a type of book.

URNs can identify ideas and concepts. They are not restricted to identifying documents. When a URN does represent a document, it can be translated into a URL by a "resolver". The document can then be downloaded from the URL.

URI -- Uniform Resource Identifier

URIs encompasses both URLs, URNs, and other ways to indicate a resource.

An example of a URI that is neither a URL nor a URN would be a data URI such as data:,Hello%20World. It is not a URL or URN because the URI contains the data. It neither names it, nor tells you how to locate it over the network.

There are also uniform resource citations (URCs) that point to meta data about a document rather than to the document itself. An example of a URC would be an indicator for viewing the source code of a web page: view-source:http://example.com/. A URC is another type of URI that is neither URL nor URN.

Frequently Asked Questions

I've heard that I shouldn't say URL anymore, why?

The w3 spec for HTML says that the href of an anchor tag can contain a URI, not just a URL. You should be able to put in a URN such as <a href="urn:isbn:0451450523">. Your browser would then resolve that URN to a URL and download the book for you.

Do any browsers actually know how to fetch documents by URN?

Not that I know of, but modern web browser do implement the data URI scheme.

Can a URI be both a URL and a URN?

Good question. I've seen lots of places on the web that state this is true. I haven't been able to find any examples of something that is both a URL and a URN. I don't see how it is possible because a URN starts with urn: which is not a valid network protocol.

Does the difference between URL and URI have anything to do with whether it is relative or absolute?

No. Both relative and absolute URLs are URLs (and URIs.)

Does the difference between URL and URI have anything to do with whether it has query parameters?

No. Both URLs with and without query parameters are URLs (and URIs.)

Does the difference between URL and URI have anything to do with whether it has a fragment identifier?

No. Both URLs with and without fragment identifiers are URLs (and URIs.)

Is a tel: URI a URL or a URN?

For example tel:1-800-555-5555. It doesn't start with urn: and it has a protocol for reaching a resource over a network. It must be a URL.

But doesn't the w3C now say that URLs and URIs are the same thing?

Yes. The W3C realized that there is a ton of confusion about this. They issued a URI clarification document that says that it is now OK to use URL and URI interchangeably. It is no longer useful to strictly segment URIs into different types such as URL, URN, and URC.

File myFile = new File(uri.toString());
myFile.getAbsolutePath()

should return u the correct path

EDIT

As @Tron suggested the working code is

File myFile = new File(uri.getPath());
myFile.getAbsolutePath()

I created a gem to make URI encoding stuff cleaner to use in your code. It takes care of binary encoding for you.

Run gem install uri-handler, then use:

require 'uri-handler'

str = "\x12\x34\x56\x78\x9a\xbc\xde\xf1\x23\x45\x67\x89\xab\xcd\xef\x12\x34\x56\x78\x9a".to_uri
# => "%124Vx%9A%BC%DE%F1%23Eg%89%AB%CD%EF%124Vx%9A"

It adds the URI conversion functionality into the String class. You can also pass it an argument with the optional encoding string you would like to use. By default it sets to encoding 'binary' if the straight UTF-8 encoding fails.

What are you going to do with the URI?

If you're just going to use it with an HttpGet for example, you can just use the string directly when creating the HttpGet instance.

HttpGet get = new HttpGet("http://stackoverflow.com");

In Intent, you can directly put Uri. You don't need to convert the Uri to string and convert back again to Uri.

Look at this simple approach.

// put uri to intent 
intent.setData(imageUri);

And to get Uri back from intent:

// Get Uri from Intent
Uri imageUri=getIntent().getData();

This is very possible; you define the URI scheme in your AndroidManifest.xml, using the <data> element. You setup an intent filter with the <data> element filled out, and you'll be able to create your own scheme. (More on intent filters and intent resolution here.)

Here's a short example:

<activity android:name=".MyUriActivity">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="myapp" android:host="path" />
    </intent-filter>
</activity>

As per how implicit intents work, you need to define at least one action and one category as well; here I picked VIEW as the action (though it could be anything), and made sure to add the DEFAULT category (as this is required for all implicit intents). Also notice how I added the category BROWSABLE - this is not necessary, but it will allow your URIs to be openable from the browser (a nifty feature).

This code worked for me

public static void main(String[] args) {
    try {
        java.net.URL myUr = new java.net.URL("http://path");
        System.out.println("Instantiated new URL: " + connection_url);
    }
    catch (MalformedURLException e) {
        e.printStackTrace();
    }
}

Instantiated new URL: http://path

Yes, this is documented in RFC 3986, section 5.2:

(edit: Oops, my RFC reference was outdated).

If you want to pass a Uri to another activity, try the method intent.setData(Uri uri) https://developer.android.com/reference/android/content/Intent.html#setData(android.net.Uri)

In another activity, via intent.getData() to obtain the Uri.

To get any sort of file path use this :

/*
 * Copyright (C) 2007-2008 OpenIntents.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.yourpackage;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.util.Log;
import android.webkit.MimeTypeMap;

import java.io.File;
import java.io.FileFilter;
import java.text.DecimalFormat;
import java.util.Comparator;
import java.util.List;

/**
 * @author Peli
 * @author paulburke (ipaulpro)
 * @version 2013-12-11
 */
public class FileUtils {
    private FileUtils() {
    } //private constructor to enforce Singleton pattern

    /**
     * TAG for log messages.
     */
    static final String TAG = "FileUtils";
    private static final boolean DEBUG = true; // Set to true to enable logging

    public static final String MIME_TYPE_AUDIO = "audio/*";
    public static final String MIME_TYPE_TEXT = "text/*";
    public static final String MIME_TYPE_IMAGE = "image/*";
    public static final String MIME_TYPE_VIDEO = "video/*";
    public static final String MIME_TYPE_APP = "application/*";

    public static final String HIDDEN_PREFIX = ".";

    /**
     * Gets the extension of a file name, like ".png" or ".jpg".
     *
     * @param uri
     * @return Extension including the dot("."); "" if there is no extension;
     * null if uri was null.
     */
    public static String getExtension(String uri) {
        if (uri == null) {
            return null;
        }

        int dot = uri.lastIndexOf(".");
        if (dot >= 0) {
            return uri.substring(dot);
        } else {
            // No extension.
            return "";
        }
    }

    /**
     * @return Whether the URI is a local one.
     */
    public static boolean isLocal(String url) {
        if (url != null && !url.startsWith("http://") && !url.startsWith("https://")) {
            return true;
        }
        return false;
    }

    /**
     * @return True if Uri is a MediaStore Uri.
     * @author paulburke
     */
    public static boolean isMediaUri(Uri uri) {
        return "media".equalsIgnoreCase(uri.getAuthority());
    }

    /**
     * Convert File into Uri.
     *
     * @param file
     * @return uri
     */
    public static Uri getUri(File file) {
        if (file != null) {
            return Uri.fromFile(file);
        }
        return null;
    }

    /**
     * Returns the path only (without file name).
     *
     * @param file
     * @return
     */
    public static File getPathWithoutFilename(File file) {
        if (file != null) {
            if (file.isDirectory()) {
                // no file to be split off. Return everything
                return file;
            } else {
                String filename = file.getName();
                String filepath = file.getAbsolutePath();

                // Construct path without file name.
                String pathwithoutname = filepath.substring(0,
                        filepath.length() - filename.length());
                if (pathwithoutname.endsWith("/")) {
                    pathwithoutname = pathwithoutname.substring(0, pathwithoutname.length() - 1);
                }
                return new File(pathwithoutname);
            }
        }
        return null;
    }

    /**
     * @return The MIME type for the given file.
     */
    public static String getMimeType(File file) {

        String extension = getExtension(file.getName());

        if (extension.length() > 0)
            return MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension.substring(1));

        return "application/octet-stream";
    }

    /**
     * @return The MIME type for the give Uri.
     */
    public static String getMimeType(Context context, Uri uri) {
        File file = new File(getPath(context, uri));
        return getMimeType(file);
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is {@link LocalStorageProvider}.
     * @author paulburke
     */
    public static boolean isLocalStorageDocument(Uri uri) {
        return LocalStorageProvider.AUTHORITY.equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     * @author paulburke
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     * @author paulburke
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     * @author paulburke
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context       The context.
     * @param uri           The Uri to query.
     * @param selection     (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     * @author paulburke
     */
    public static String getDataColumn(Context context, Uri uri, String selection,
                                       String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {
                column
        };

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                if (DEBUG)
                    DatabaseUtils.dumpCursor(cursor);

                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * Get a file path from a Uri. This will quickGet the the path for Storage Access
     * Framework Documents, as well as the _data field for the MediaStore and
     * other file-based ContentProviders.<br>
     * <br>
     * Callers should check whether the path is local before assuming it
     * represents a local file.
     *
     * @param context The context.
     * @param uri     The Uri to query.
     * @author paulburke
     * @see #isLocal(String)
     * @see #getFile(Context, Uri)
     */
    public static String getPath(final Context context, final Uri uri) {

        if (DEBUG)
            Log.d(TAG + " File -",
                    "Authority: " + uri.getAuthority() +
                            ", Fragment: " + uri.getFragment() +
                            ", Port: " + uri.getPort() +
                            ", Query: " + uri.getQuery() +
                            ", Scheme: " + uri.getScheme() +
                            ", Host: " + uri.getHost() +
                            ", Segments: " + uri.getPathSegments().toString()
            );
        // DocumentProvider
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, uri)) {
            // LocalStorageProvider
            if (isLocalStorageDocument(uri)) {
                // The path is the id
                return DocumentsContract.getDocumentId(uri);
            }
            // ExternalStorageProvider
            else if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

//                if ("primary".equalsIgnoreCase(type)) {
//                    return Environment.getExternalStorageDirectory() + "/" + split[1];
//                }
                return Environment.getExternalStorageDirectory() + "/" + split[1];

                // TODO handle non-primary volumes
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {
                try {
                    final String id = DocumentsContract.getDocumentId(uri);
                    Log.d(TAG, "getPath: id= " + id);
                    final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                    return getDataColumn(context, contentUri, null, null);
                }catch (Exception e){
                    e.printStackTrace();
                    List<String> segments = uri.getPathSegments();
                    if(segments.size() > 1) {
                        String rawPath = segments.get(1);
                        if(!rawPath.startsWith("/")){
                            return rawPath.substring(rawPath.indexOf("/"));
                        }else {
                            return rawPath;
                        }
                    }
                }
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{
                        split[1]
                };

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {

            // Return the remote address
            if (isGooglePhotosUri(uri))
                return uri.getLastPathSegment();

            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Convert Uri into File, if possible.
     *
     * @return file A local file that the Uri was pointing to, or null if the
     * Uri is unsupported or pointed to a remote resource.
     * @author paulburke
     * @see #getPath(Context, Uri)
     */
    public static File getFile(Context context, Uri uri) {
        if (uri != null) {
            String path = getPath(context, uri);
            if (path != null && isLocal(path)) {
                return new File(path);
            }
        }
        return null;
    }

    /**
     * Get the file size in a human-readable string.
     *
     * @param size
     * @return
     * @author paulburke
     */
    public static String getReadableFileSize(int size) {
        final int BYTES_IN_KILOBYTES = 1024;
        final DecimalFormat dec = new DecimalFormat("###.#");
        final String KILOBYTES = " KB";
        final String MEGABYTES = " MB";
        final String GIGABYTES = " GB";
        float fileSize = 0;
        String suffix = KILOBYTES;

        if (size > BYTES_IN_KILOBYTES) {
            fileSize = size / BYTES_IN_KILOBYTES;
            if (fileSize > BYTES_IN_KILOBYTES) {
                fileSize = fileSize / BYTES_IN_KILOBYTES;
                if (fileSize > BYTES_IN_KILOBYTES) {
                    fileSize = fileSize / BYTES_IN_KILOBYTES;
                    suffix = GIGABYTES;
                } else {
                    suffix = MEGABYTES;
                }
            }
        }
        return String.valueOf(dec.format(fileSize) + suffix);
    }

    /**
     * Attempt to retrieve the thumbnail of given File from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param file
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, File file) {
        return getThumbnail(context, getUri(file), getMimeType(file));
    }

    /**
     * Attempt to retrieve the thumbnail of given Uri from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param uri
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, Uri uri) {
        return getThumbnail(context, uri, getMimeType(context, uri));
    }

    /**
     * Attempt to retrieve the thumbnail of given Uri from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param uri
     * @param mimeType
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, Uri uri, String mimeType) {
        if (DEBUG)
            Log.d(TAG, "Attempting to quickGet thumbnail");

        if (!isMediaUri(uri)) {
            Log.e(TAG, "You can only retrieve thumbnails for images and videos.");
            return null;
        }

        Bitmap bm = null;
        if (uri != null) {
            final ContentResolver resolver = context.getContentResolver();
            Cursor cursor = null;
            try {
                cursor = resolver.query(uri, null, null, null, null);
                if (cursor.moveToFirst()) {
                    final int id = cursor.getInt(0);
                    if (DEBUG)
                        Log.d(TAG, "Got thumb ID: " + id);

                    if (mimeType.contains("video")) {
                        bm = MediaStore.Video.Thumbnails.getThumbnail(
                                resolver,
                                id,
                                MediaStore.Video.Thumbnails.MINI_KIND,
                                null);
                    } else if (mimeType.contains(FileUtils.MIME_TYPE_IMAGE)) {
                        bm = MediaStore.Images.Thumbnails.getThumbnail(
                                resolver,
                                id,
                                MediaStore.Images.Thumbnails.MINI_KIND,
                                null);
                    }
                }
            } catch (Exception e) {
                if (DEBUG)
                    Log.e(TAG, "getThumbnail", e);
            } finally {
                if (cursor != null)
                    cursor.close();
            }
        }
        return bm;
    }

    /**
     * File and folder comparator. TODO Expose sorting option method
     *
     * @author paulburke
     */
    public static Comparator<File> sComparator = new Comparator<File>() {
        @Override
        public int compare(File f1, File f2) {
            // Sort alphabetically by lower case, which is much cleaner
            return f1.getName().toLowerCase().compareTo(
                    f2.getName().toLowerCase());
        }
    };

    /**
     * File (not directories) filter.
     *
     * @author paulburke
     */
    public static FileFilter sFileFilter = new FileFilter() {
        @Override
        public boolean accept(File file) {
            final String fileName = file.getName();
            // Return files only (not directories) and skip hidden files
            return file.isFile() && !fileName.startsWith(HIDDEN_PREFIX);
        }
    };

    /**
     * Folder (directories) filter.
     *
     * @author paulburke
     */
    public static FileFilter sDirFilter = new FileFilter() {
        @Override
        public boolean accept(File file) {
            final String fileName = file.getName();
            // Return directories only and skip hidden directories
            return file.isDirectory() && !fileName.startsWith(HIDDEN_PREFIX);
        }
    };

    /**
     * Get the Intent for selecting content to be used in an Intent Chooser.
     *
     * @return The intent for opening a file with Intent.createChooser()
     * @author paulburke
     */
    public static Intent createGetContentIntent() {
        // Implicitly allow the user to select a particular kind of data
        final Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        // The MIME data type filter
        intent.setType("*/*");
        // Only return URIs that can be opened with ContentResolver
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        return intent;
    }
}

Some of the webservices require you to place request data and metadata separately. For example a remote function may expect that the signed metadata string is included in a URI, while the data is posted in a HTTP-body.

The POST request may semantically look like this:

POST /?AuthId=YOURKEY&Action=WebServiceAction&Signature=rcLXfkPldrYm04 HTTP/1.1
Content-Type: text/tab-separated-values; charset=iso-8859-1
Content-Length: []
Host: webservices.domain.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: identity
User-Agent: Mozilla/3.0 (compatible; Indy Library)

name    id
John    G12N
Sarah   J87M
Bob     N33Y

This approach logically combines QueryString and Body-Post using a single Content-Type which is a "parsing-instruction" for a web-server.

Please note: HTTP/1.1 is wrapped with the #32 (space) on the left and with #10 (Line feed) on the right.

I made a bash script, that given a number of parts as input, split a file

#!/bin/sh

parts_total="$2";
input="$1";

parts=$((parts_total))
for i in $(seq 0 $((parts_total-2))); do
  lines=$(wc -l "$input" | cut -f 1 -d" ")
  #n is rounded, 1.3 to 2, 1.6 to 2, 1 to 1
  n=$(awk  -v lines=$lines -v parts=$parts 'BEGIN { 
    n = lines/parts;
    rounded = sprintf("%.0f", n);
    if(n>rounded){
      print rounded + 1;
    }else{
      print rounded;
    }
  }');
  head -$n "$input" > split${i}
  tail -$((lines-n)) "$input" > .tmp${i}
  input=".tmp${i}"
  parts=$((parts-1));
done
mv .tmp$((parts_total-2)) split$((parts_total-1))
rm .tmp*

I used head and tail commands, and store in tmp files, for split the files

#10 means 10 parts
sh mysplitXparts.sh input_file 10

or with awk, where 0.1 is 10% => 10 parts, or 0.334 is 3 parts

awk -v size=$(wc -l < input) -v perc=0.1 '{
  nfile = int(NR/(size*perc)); 
  if(nfile >= 1/perc){
    nfile--;
  } 
  print > "split_"nfile
}' input

Duck Typing is not Type Hinting!

Basically in order to use "duck typing" you will not target a specific type but rather a wider range of subtypes (not talking about inheritance, when I mean subtypes I mean "things" that fit within the same profiles) by using a common interface.

You can imagine a system that stores information. In order to write/read information you need some sort of storage and information.

Types of storage may be: file, database, session etc.

The interface will let you know the available options (methods) regardless of the storage type, meaning that at this point nothing is implemented! In another words the Interface doesn't know nothing about how to store information.

Every storage system must know the existence of the interface by implementing it's very same methods.

interface StorageInterface
{
   public function write(string $key, array $value): bool;
   public function read(string $key): array;
}


class File implements StorageInterface
{
    public function read(string $key): array {
        //reading from a file
    }

    public function write(string $key, array $value): bool {
         //writing in a file implementation
    }
}


class Session implements StorageInterface
{
    public function read(string $key): array {
        //reading from a session
    }

    public function write(string $key, array $value): bool {
         //writing in a session implementation
    }
}


class Storage implements StorageInterface
{
    private $_storage = null;

    function __construct(StorageInterface $storage) {
        $this->_storage = $storage;
    }

    public function read(string $key): array {
        return $this->_storage->read($key);
    }

    public function write(string $key, array $value): bool {
        return ($this->_storage->write($key, $value)) ? true : false;
    }
}

So now, every time you need to write/read information:

$file = new Storage(new File());
$file->write('filename', ['information'] );
echo $file->read('filename');

$session = new Storage(new Session());
$session->write('filename', ['information'] );
echo $session->read('filename');

In this example you end up using Duck Typing in Storage constructor:

function __construct(StorageInterface $storage) ...

Hope it helped ;)

You'll want something like this for it to be cross browser.

function OuterHTML(element) {
    var container = document.createElement("div");
    container.appendChild(element.cloneNode(true));

    return container.innerHTML;
}

You can use {{ URL::previous() }} But it not perfect UX.

For example, when you press F5 button and click again to Back Button with {{ URL::previous() }} you will stay in.

A good way is using {{ route('page.edit', $item->id) }} it always true page you wanna to redirect.

Document sizes are a browser compatibility nightmare because, although all browsers expose clientHeight and scrollHeight properties, they don't all agree how the values are calculated.

There used to be a complex best-practice formula around for how you tested for correct height/width. This involved using document.documentElement properties if available or falling back on document properties and so on.

The simplest way to get correct height is to get all height values found on document, or documentElement, and use the highest one. This is basically what jQuery does:

var body = document.body,
    html = document.documentElement;

var height = Math.max( body.scrollHeight, body.offsetHeight, 
                       html.clientHeight, html.scrollHeight, html.offsetHeight );

A quick test with Firebug + jQuery bookmarklet returns the correct height for both cited pages, and so does the code example.

Note that testing the height of the document before the document is ready will always result in a 0. Also, if you load more stuff in, or the user resizes the window, you may need to re-test. Use onload or a document ready event if you need this at load time, otherwise just test whenever you need the number.

So if you just have a string and not a window.location you could use...

String.prototype.toUrl = function(){

if(!this && 0 < this.length)
{
    return undefined;
}
var original = this.toString();
var s = original;
if(!original.toLowerCase().startsWith('http'))
{
    s = 'http://' + original;
}

s = this.split('/');

var protocol = s[0];
var host = s[2];
var relativePath = '';

if(s.length > 3){
    for(var i=3;i< s.length;i++)
    {
        relativePath += '/' + s[i];
    }
}

s = host.split('.');
var domain = s[s.length-2] + '.' + s[s.length-1];    

return {
    original: original,
    protocol: protocol,
    domain: domain,
    host: host,
    relativePath: relativePath,
    getParameter: function(param)
    {
        return this.getParameters()[param];
    },
    getParameters: function(){
        var vars = [], hash;
        var hashes = this.original.slice(this.original.indexOf('?') + 1).split('&');
        for (var i = 0; i < hashes.length; i++) {
            hash = hashes[i].split('=');
            vars.push(hash[0]);
            vars[hash[0]] = hash[1];
        }
        return vars;
    }
};};

How to use.

var str = "http://en.wikipedia.org/wiki/Knopf?q=1&t=2";
var url = str.toUrl;

var host = url.host;
var domain = url.domain;
var original = url.original;
var relativePath = url.relativePath;
var paramQ = url.getParameter('q');
var paramT = url.getParamter('t');

RANK() is good, but it assigns the same rank for equal or similar values. And if you need unique rank, then ROW_NUMBER() solves this problem

ROW_NUMBER() OVER (ORDER BY totals DESC) AS xRank

As Jason says, you can create a variable of the right type and pass that. You might want to encapsulate it in your own method:

public static DateTime? TryParse(string text)
{
    DateTime date;
    if (DateTime.TryParse(text, out date))
    {
        return date;
    }
    else
    {
        return null;
    }
}

... or if you like the conditional operator:

public static DateTime? TryParse(string text)
{
    DateTime date;
    return DateTime.TryParse(text, out date) ? date : (DateTime?) null;
}

Or in C# 7:

public static DateTime? TryParse(string text) =>
    DateTime.TryParse(text, out var date) ? date : (DateTime?) null;

ULTRA simple solution and finest:

Remove everything in Right Click Main Project's Folder -> Properties -> Java Build Path except Android X.Y (where X.Y is the version in android). Clean, and Build. Done!

Make sure before of that to have a single android-support-v4.jar.

Welcome to C++11 and rvalue references:

#include <cassert>
#include <string>

using std::string;

void myfunc(string*&& val)
{
    assert(&val);
    assert(val);
    assert(val->c_str());
    // Do stuff to the string pointer
}

// sometime later 
int main () {
    // ...
    string s;
    myfunc(&s);
    // ...
}

Now you have access to the value of the pointer (referred to by val), which is the address of the string.

You can modify the pointer, and no one will care. That is one aspect of what an rvalue is in the first place.

Be careful: The value of the pointer is only valid until myfunc() returns. At last, its a temporary.

I answered a similar question a while ago. Basically, the best way would be to use the class HttpValueCollection, which ASP.NET's Request.QueryString property actually is, unfortunately it is internal in the .NET framework. You could use Reflector to grab it (and place it into your Utils class). This way you could manipulate the query string like a NameValueCollection, but with all the url encoding/decoding issues taken care for you.

HttpValueCollection extends NameValueCollection, and has a constructor that takes an encoded query string (ampersands and question marks included), and it overrides a ToString() method to later rebuild the query string from the underlying collection.

Example:

  var coll = new HttpValueCollection();

  coll["userId"] = "50";
  coll["paramA"] = "A";
  coll["paramB"] = "B";      

  string query = coll.ToString(true); // true means use urlencode

  Console.WriteLine(query); // prints: userId=50&paramA=A&paramB=B

Here is some food for thought.

If you had been using all .htm files on your website and now, for example, you have changed the editor that you are using, and your new editor is outputting all your files with the .html extension. When you re-publish your site to the server, it would seem to me that you could really hurt your SEO position/ranking as many of the links out there in the web, including Google, that were looking for the .htm and not the new .html for that same page. This assumes that you are still using the same page names from your old editor which would make sense.

Anyway... My point is, be careful not to loose that link juice you have build up. So I guess in this example, there is a reason to stick with .htm... But other then that as mentioned by everyone else they seem to be the same.

Please correct if I'm wrong.

The reason I mention all this is because this is what I was in the process of doing when it occurred to me I may be damaging the site SEO with the new editor.

The original editor was MS Front Page, which always outputted .htm, dead now, and the new editor "90 Second Web Builder 9" which outputs all .html files... Luckily, they must have thought about this and they included a way to change the output extension back to .htm

Anyway, that's my 2 cents... hope it helps someone..

Within your component, you can define an array of number (ES6) as described below:

export class SampleComponent {
  constructor() {
    this.numbers = Array(5).fill(0).map((x,i)=>i);
  }
}

See this link for the array creation: Tersest way to create an array of integers from 1..20 in JavaScript.

You can then iterate over this array with ngFor:

@View({
  template: `
    <ul>
      <li *ngFor="let number of numbers">{{number}}</li>
    </ul>
  `
})
export class SampleComponent {
  (...)
}

Or shortly:

@View({
  template: `
    <ul>
      <li *ngFor="let number of [0,1,2,3,4]">{{number}}</li>
    </ul>
  `
})
export class SampleComponent {
  (...)
}

Hope it helps you, Thierry

Edit: Fixed the fill statement and template syntax.

for the past few days I was also going through the same issue. But after, a lot of research I finally found a solution for this.
In order to solve this issue, what you need to do is:
1. Check if your project's build.gradle file and the module's build.gradle file contain same versions of all dependencies.
2. Make sure, your project's compileSdkVersion, buildToolsVersion, minSdkVersion and targetSdkVersion matches the one in the modules or libraries that you have added into the project.

compileSdkVersion 25
buildToolsVersion "25.0.0"
defaultConfig {
    applicationId "com.example.appname"
    minSdkVersion 16
    targetSdkVersion 25
    versionCode 22
    versionName "2.0.3"

}

Hope, this helps.

Maybe

df <- do.call("cbind", list(df, rep(list(NA),length(namevector))))
colnames(df)[-1*(1:(ncol(df) - length(namevector)))] <- namevector

You would use indexOf like this:

if(window.location.href.indexOf("franky") != -1){....}

Also notice the addition of href for the string otherwise you would do:

if(window.location.toString().indexOf("franky") != -1){....}

In general this is to put an exe/dll on the path. As long as this file wont appear anywhere else:

@echo off
where /q <put filename here>    
if %errorlevel% == 1 (
    setx PATH "%PATH%;<additional path stuff>"
) else (
    echo "already set path"
)

Just go to vmvare edit->preferences->shared vms. Click on change settings and disable sharing.click on OK.xampp will work fine.

By using the XML attribute you just need to define a method instead of a class so I was wondering if the same can be done via code and not in the XML layout.

Yes, You can make your fragment or activity implement View.OnClickListener

and when you initialize your new view objects in code you can simply do mView.setOnClickListener(this);

and this automatically sets all view objects in code to use the onClick(View v) method that your fragment or activity etc has.

to distinguish which view has called the onClick method, you can use a switch statement on the v.getId() method.

This answer is different from the one that says "No that is not possible via code"

Keep in mind that SQL strings can not be larger than 4000 bytes, while Pl/SQL can have strings as large as 32767 bytes. see below for an example of inserting a large string via an anonymous block which I believe will do everything you need it to do.

note I changed the varchar2(32000) to CLOB

set serveroutput ON 
CREATE TABLE testclob 
  ( 
     id NUMBER, 
     c  CLOB, 
     d  VARCHAR2(4000) 
  ); 

DECLARE 
    reallybigtextstring CLOB := '123'; 
    i                   INT; 
BEGIN 
    WHILE Length(reallybigtextstring) <= 60000 LOOP 
        reallybigtextstring := reallybigtextstring 
                               || '000000000000000000000000000000000'; 
    END LOOP; 

    INSERT INTO testclob 
                (id, 
                 c, 
                 d) 
    VALUES     (0, 
                reallybigtextstring, 
                'done'); 

    dbms_output.Put_line('I have finished inputting your clob: ' 
                         || Length(reallybigtextstring)); 
END; 

/ 
SELECT * 
FROM   testclob; 


 "I have finished inputting your clob: 60030"

Simply specify the directory in which the loadable extensions (modules) reside in the php.ini file from

; On windows:
extension_dir="C:\xampp\php\ext"

to

; On windows:
;extension_dir = "ext"

Then enable the extension if it was disabled by changing

;extension=mysqli

to

extension=mysqli

Working on the django project and faced same problem, This is what I did. Check if you have metaplotlib already simply by writing pip show metaplotlib in the python terminal.

1. If dont, run the command pip install metaplotlib.(make sure you have pip downloaded)
2. Run the command pip show metaplotlib again.
3. If the library is successfully downloaded, you can run your project (py manage.py runserver)

If you are writing a web app or single page application (SPA) where routing takes place in the app/browser rather than a round-trip to the server, you can do the following:

window.history.pushState({ prevUrl: window.location.href }, null, "/new/path/in/your/app")

Then, in your new route, you can do the following to retrieve the previous URL:

window.history.state.prevUrl // your previous url

req.protocol + '://' + req.get('host') + req.originalUrl

or

req.protocol + '://' + req.headers.host + req.originalUrl // I like this one as it survives from proxy server, getting the original host name

The way to approach this is to tell the tableView to remove and add rows and sections with the

insertRowsAtIndexPaths:withRowAnimation:,
deleteRowsAtIndexPaths:withRowAnimation:,
insertSections:withRowAnimation: and
deleteSections:withRowAnimation:

methods of UITableView.

When you call these methods, the table will animate in/out the items you requested, then call reloadData on itself so you can update the state after this animation. This part is important - if you animate away everything but don't change the data returned by the table's dataSource, the rows will appear again after the animation completes.

So, your application flow would be:

[self setTableIsInSecondState:YES];

[myTable deleteSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:YES]];

As long as your table's dataSource methods return the correct new set of sections and rows by checking [self tableIsInSecondState] (or whatever), this will achieve the effect you're looking for.

When you want to sort a List which include the Object Foo, the Foo class has to implement the Comparable interface, because the sort methode of the List is using this methode.

When you want to write a Util class which compares two other classes you can implement the Comparator class.

Take a look at the help page for merge. The all parameter lets you specify different types of merges. Here we want to set all = TRUE. This will make merge return NA for the values that don't match, which we can update to 0 with is.na():

zz <- merge(df1, df2, all = TRUE)
zz[is.na(zz)] <- 0

> zz
  x y
1 a 0
2 b 1
3 c 0
4 d 0
5 e 0

Updated many years later to address follow up question

You need to identify the variable names in the second data table that you aren't merging on - I use setdiff() for this. Check out the following:

df1 = data.frame(x=c('a', 'b', 'c', 'd', 'e', NA))
df2 = data.frame(x=c('a', 'b', 'c'),y1 = c(0,1,0), y2 = c(0,1,0))

#merge as before
df3 <- merge(df1, df2, all = TRUE)
#columns in df2 not in df1
unique_df2_names <- setdiff(names(df2), names(df1))
df3[unique_df2_names][is.na(df3[, unique_df2_names])] <- 0 

^{Created on 2019-01-03 by the reprex package (v0.2.1)}

The language standard simply doesn't allow for it. Labels can only be followed by statements, and declarations do not count as statements in C. The easiest way to get around this is by inserting an empty statement after your label, which relieves you from keeping track of the scope the way you would need to inside a block.

#include <stdio.h>
int main () 
{
    printf("Hello ");
    goto Cleanup;
Cleanup: ; //This is an empty statement.
    char *str = "World\n";
    printf("%s\n", str);
}

Here is a bulky but fast version :

def nbdigit ( x ):
    if x >= 10000000000000000 : # 17 -
        return len( str( x ))
    if x < 100000000 : # 1 - 8
        if x < 10000 : # 1 - 4
            if x < 100             : return (x >= 10)+1 
            else                   : return (x >= 1000)+3
        else: # 5 - 8                                                 
            if x < 1000000         : return (x >= 100000)+5 
            else                   : return (x >= 10000000)+7
    else: # 9 - 16 
        if x < 1000000000000 : # 9 - 12
            if x < 10000000000     : return (x >= 1000000000)+9 
            else                   : return (x >= 100000000000)+11
        else: # 13 - 16
            if x < 100000000000000 : return (x >= 10000000000000)+13 
            else                   : return (x >= 1000000000000000)+15

Only 5 comparisons for not too big numbers. On my computer it is about 30% faster than the math.log10 version and 5% faster than the len( str()) one. Ok... no so attractive if you don't use it furiously.

And here is the set of numbers I used to test/measure my function:

n = [ int( (i+1)**( 17/7. )) for i in xrange( 1000000 )] + [0,10**16-1,10**16,10**16+1]

NB: it does not manage negative numbers, but the adaptation is easy...

Call the time picker dialog in the DatePicker update time method. It'll not be called at the same time but when you press DatePicker set button. The time picker dialog will open. The method is given below.

package com.android.date;

import java.util.Calendar;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;
import android.widget.TimePicker;

public class datepicker extends Activity {

    private TextView mDateDisplay;
    private Button mPickDate;
    private int mYear;
    private int mMonth;
    private int mDay;
    private TextView mTimeDisplay;
    private Button mPickTime;

    private int mhour;
    private int mminute;

    static final int TIME_DIALOG_ID = 1;

    static final int DATE_DIALOG_ID = 0;

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

        mDateDisplay =(TextView)findViewById(R.id.date);
        mPickDate =(Button)findViewById(R.id.datepicker);
        mTimeDisplay = (TextView) findViewById(R.id.time);
        mPickTime = (Button) findViewById(R.id.timepicker);

        //Pick time's click event listener
        mPickTime.setOnClickListener(new View.OnClickListener(){

            @Override
            public void onClick(View v) {
                showDialog(TIME_DIALOG_ID);
            }
        });

        //PickDate's click event listener 
        mPickDate.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                showDialog(DATE_DIALOG_ID);
            }
        });

        final Calendar c = Calendar.getInstance();
        mYear = c.get(Calendar.YEAR);
        mMonth = c.get(Calendar.MONTH);
        mDay = c.get(Calendar.DAY_OF_MONTH);
        mhour = c.get(Calendar.HOUR_OF_DAY);
        mminute = c.get(Calendar.MINUTE);
    }

    //-------------------------------------------update date---//    
    private void updateDate() {
        mDateDisplay.setText(
            new StringBuilder()
                    // Month is 0 based so add 1
                    .append(mDay).append("/")
                    .append(mMonth + 1).append("/")
                    .append(mYear).append(" "));
        showDialog(TIME_DIALOG_ID);
    }

      //-------------------------------------------update time---//    
    public void updatetime() {
        mTimeDisplay.setText(
                new StringBuilder()
                        .append(pad(mhour)).append(":")
                        .append(pad(mminute))); 
    }

    private static String pad(int c) {
        if (c >= 10)
            return String.valueOf(c);
        else
            return "0" + String.valueOf(c);


    //Datepicker dialog generation  

    private DatePickerDialog.OnDateSetListener mDateSetListener =
        new DatePickerDialog.OnDateSetListener() {

            public void onDateSet(DatePicker view, int year, 
                                  int monthOfYear, int dayOfMonth) {
                mYear = year;
                mMonth = monthOfYear;
                mDay = dayOfMonth;
                updateDate();
            }
        };


     // Timepicker dialog generation
        private TimePickerDialog.OnTimeSetListener mTimeSetListener =
            new TimePickerDialog.OnTimeSetListener() {
                public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                    mhour = hourOfDay;
                    mminute = minute;
                    updatetime();
                }
            };

        @Override
        protected Dialog onCreateDialog(int id) {
            switch (id) {
            case DATE_DIALOG_ID:
                return new DatePickerDialog(this,
                            mDateSetListener,
                            mYear, mMonth, mDay);

            case TIME_DIALOG_ID:
                return new TimePickerDialog(this,
                        mTimeSetListener, mhour, mminute, false);

            }
            return null;
        }
}

the main.xml is given below

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

    <TextView  
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:text="@string/hello"/>

    <TextView android:id="@+id/time"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""/>

    <Button
        android:id="@+id/timepicker"
        android:text="Change Time" 
        android:layout_height="wrap_content" 
        android:layout_width="wrap_content"/>

    <TextView 
        android:id="@+id/date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""/>

    <Button android:id="@+id/datepicker"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="200dp"
        android:text="Change the date"/>

</LinearLayout>

Check out the aq branch, and rebase from master.

git checkout aq
git rebase master

I think you may be after

select 
    jobID, JobName,
    sum(case when Priority = 1 then 1 else 0 end) as priority1,
    sum(case when Priority = 2 then 1 else 0 end) as priority2,
    sum(case when Priority = 3 then 1 else 0 end) as priority3,
    sum(case when Priority = 4 then 1 else 0 end) as priority4,
    sum(case when Priority = 5 then 1 else 0 end) as priority5
from
    Jobs
group by 
    jobID, JobName

However I am uncertain if you need to the jobID and JobName in your results if so remove them and remove the group by,

A lot of responses on here are addressing the how but not the why. PHP $_SESSION key/value pairs are stored on the server. This differs from a cookie, which is stored on the browser. This is why you are able to access values in a cookie from both PHP and JavaScript. To make matters worse, AJAX requests from the browser do not include any of the cookies you have set for the website. So, you will have to make JavaScript pull the Session ID cookie and include it in every AJAX request for the server to be able to make heads or tails of it. On the bright side, PHP Sessions are designed to fail-over to a HTTP GET or POST variable if cookies are not sent along with the HTTP headers. I would look into some of the principles of RESTful web applications and use of of the design patterns that are common with those kinds of applications instead of trying to mangle with the session handler.

This isolation level allows dirty reads. One transaction may see uncommitted changes made by some other transaction.

To maintain the highest level of isolation, a DBMS usually acquires locks on data, which may result in a loss of concurrency and a high locking overhead. This isolation level relaxes this property.

You may want to check out the Wikipedia article on READ UNCOMMITTED for a few examples and further reading.

You may also be interested in checking out Jeff Atwood's blog article on how he and his team tackled a deadlock issue in the early days of Stack Overflow. According to Jeff:

But is nolock dangerous? Could you end up reading invalid data with read uncommitted on? Yes, in theory. You'll find no shortage of database architecture astronauts who start dropping ACID science on you and all but pull the building fire alarm when you tell them you want to try nolock. It's true: the theory is scary. But here's what I think: "In theory there is no difference between theory and practice. In practice there is."

I would never recommend using nolock as a general "good for what ails you" snake oil fix for any database deadlocking problems you may have. You should try to diagnose the source of the problem first.

But in practice adding nolock to queries that you absolutely know are simple, straightforward read-only affairs never seems to lead to problems... As long as you know what you're doing.

One alternative to the READ UNCOMMITTED level that you may want to consider is the READ COMMITTED SNAPSHOT. Quoting Jeff again:

Snapshots rely on an entirely new data change tracking method ... more than just a slight logical change, it requires the server to handle the data physically differently. Once this new data change tracking method is enabled, it creates a copy, or snapshot of every data change. By reading these snapshots rather than live data at times of contention, Shared Locks are no longer needed on reads, and overall database performance may increase.

I found a couple of issues implementing MVC ajax GET calls with JQuery that caused me headaches so sharing solutions here.

1. Make sure to include the data type "json" in the ajax call. This will automatically parse the returned JSON object for you (given the server returns valid json).
2. Include the JsonRequestBehavior.AllowGet; without this MVC was returning a HTTP 500 error (with dataType: json specified on the client).
3. Add cache: false to the $.ajax call, otherwise you will ultimately get HTTP 304 responses (instead of HTTP 200 responses) and the server will not process your request.
4. Finally, the json is case sensitive, so the casing of the elements needs to match on the server side and client side.

Sample JQuery:

$.ajax({
  type: 'get',
  dataType: 'json',
  cache: false,
  url: '/MyController/MyMethod',
  data: { keyid: 1, newval: 10 },
  success: function (response, textStatus, jqXHR) {
    alert(parseInt(response.oldval) + ' changed to ' + newval);                                    
  },
  error: function(jqXHR, textStatus, errorThrown) {
    alert('Error - ' + errorThrown);
  }
});

Sample MVC code:

[HttpGet]
public ActionResult MyMethod(int keyid, int newval)
{
  var oldval = 0;

  using (var db = new MyContext())
  {
    var dbRecord = db.MyTable.Where(t => t.keyid == keyid).FirstOrDefault();

    if (dbRecord != null)
    {
      oldval = dbRecord.TheValue;
      dbRecord.TheValue = newval;
      db.SaveChanges();
    }
  }

    return Json(new { success = true, oldval = oldval},
                JsonRequestBehavior.AllowGet);
}

It's because you're trying to assign an object by reference. Remove the ampersand and your script should work as intended.

Another option I like, which can be generalized once I start seeing the code not conform to DRY, is to use one controller that redirects to another controller.

public ActionResult ClientIdSearch(int cid)
{
  var action = String.Format("Details/{0}", cid);

  return RedirectToAction(action, "Accounts");
}

I find this allows me to apply my logic in one location and re-use it without have to sprinkle JavaScript in the views to handle this. And, as I mentioned I can then refactor for re-use as I see this getting abused.

/^[-\w\s]+$/

\w matches letters, digits, and underscores

\s matches spaces, tabs, and line breaks

- matches the hyphen (if you have hyphen in your character set example [a-z], be sure to place the hyphen at the beginning like so [-a-z])

You have to use target attribute

<a href="newsletter_01.pdf" target="_blank">

By default Jsonresult "Deny get"

Suppose if we have method like below

  [HttpPost]
 public JsonResult amc(){}

By default it "Deny Get".

In the below method

public JsonResult amc(){}

When you need to allowget or use get ,we have to use JsonRequestBehavior.AllowGet.

public JsonResult amc()
{
 return Json(new Modle.JsonResponseData { Status = flag, Message = msg, Html = html }, JsonRequestBehavior.AllowGet);
}

After tying different answers finally, @Kayvar answers's first four lines help me to solve the issue:

npm config set registry http://registry.npmjs.org/
npm config set proxy http://myusername:[email protected]:8080
npm config set https-proxy http://myusername:[email protected]:8080
npm config set strict-ssl false

An abstract class cannot be instantiated by definition. In order to use this class, you must create a concrete subclass which implements all virtual functions of the class. In this case, you most likely have not implemented all the virtual functions declared in Light. This means that AmbientOccluder defaults to an abstract class. For us to further help you, you should include the details of the Light class.

If you have a self-signed certificate generated by makecert.exe on a Windows machine, you will get two files: cert.pvk and cert.cer. These can be converted to a pfx using pvk2pfx

pvk2pfx is found in the same location as makecert (e.g. C:\Program Files (x86)\Windows Kits\10\bin\x86 or similar)

pvk2pfx -pvk cert.pvk -spc cert.cer -pfx cert.pfx

You can use either jQuery Autocomplete or ASP.NET AJAX Toolkit Autocomplete

Looking at the documentation for JSON, it seems that the regex can simply be three parts if the goal is just to check for fitness:

1. The string starts and ends with either [] or {}
   • [{\[]{1}...[}\]]{1}
2. and
   1. The character is an allowed JSON control character (just one)
      • ...[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]...
   2. or The set of characters contained in a ""
      • ...".*?"...

All together: [{\[]{1}([,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]|".*?")+[}\]]{1}

If the JSON string contains newline characters, then you should use the singleline switch on your regex flavor so that . matches newline. Please note that this will not fail on all bad JSON, but it will fail if the basic JSON structure is invalid, which is a straight-forward way to do a basic sanity validation before passing it to a parser.

I am doing this way:

<div class="card-logo">
    <img height="100%" width="100%" src="http://someimage.jpg">
</div>

and CSS:

.card-logo {
    width: 20%;
}

I prefer this way, as if I need to upscale - I can use 150% as well

Calling p.plot after setting the limits is why it is rescaling. You are correct in that turning autoscaling off will get the right answer, but so will calling xlim() or ylim() after your plot command.

I use this quite a lot to invert the x axis, I work in astronomy and we use a magnitude system which is backwards (ie. brighter stars have a smaller magnitude) so I usually swap the limits with

lims = xlim()
xlim([lims[1], lims[0]]) 

When render_template() function is used it tries to search for template in the folder called templates and it throws error jinja2.exceptions.TemplateNotFound when :

1. the html file do not exist or
2. when templates folder do not exist

To solve the problem :

create a folder with name templates in the same directory where the python file is located and place the html file created in the templates folder.

You can accept the license agreement by launching Android Studio, then going to:

Help > Check for Updates...

When you are installing updates, it'll ask you to accept the license agreement. Accept the license agreement and install the updates, and you are all set.

This is awesome one:

string.Format("{0:00}:{1:00}:{2:00}",
               (int)myTimeSpan.TotalHours,
               myTimeSpan.Minutes,
               myTimeSpan.Seconds);

In order for a bot to send a message, you need <client>.send() , the client is where the bot will send a message to(A channel, everywhere in the server, or a PM). Since you want the bot to PM a certain user, you can use message.author as your client. (you can replace author as mentioned user in a message or something, etc)

Hence, the answer is: message.author.send("Your message here.")

I recommend looking up the Discord.js documentation about a certain object's properties whenever you get stuck, you might find a particular function that may serve as your solution.

The void operator evaluates the given expression and then returns undefined.

The void operator is often used merely to obtain the undefined primitive value, usually using “void(0)” (which is equivalent to “void 0”). In these cases, the global variable undefined can be used instead (assuming it has not been assigned to a non-default value).

An explanation is provided here: void operator.

The reason you’d want to do this with the href of a link is that normally, a javascript: URL will redirect the browser to a plain text version of the result of evaluating that JavaScript. But if the result is undefined, then the browser stays on the same page. void(0) is just a short and simple script that evaluates to undefined.

in Swift 4.2 and Xcode 10

Initially my text field is like this.

After adding padding in left side my text field is...

//Code for left padding 
textFieldName.leftView = UIView(frame: CGRect(x: 0, y: 0, width: 10, height: textFieldName.frame.height))
textFieldName.leftViewMode = .always

Like this we can create right side also.(textFieldName.rightViewMode = .always)

If you want SharedInstance type code(Write once use every ware) see the below code.

//This is my shared class
import UIKit
class SharedClass: NSObject {
    static let sharedInstance = SharedClass()

    //This is my padding function.
    func textFieldLeftPadding(textFieldName: UITextField) {
    // Create a padding view
    textFieldName.leftView = UIView(frame: CGRect(x: 0, y: 0, width: 3, height: textFieldName.frame.height))
    textFieldName.leftViewMode = .always//For left side padding
    textFieldName.rightViewMode = .always//For right side padding
    }

    private override init() {

    }
}

Now call this function like this.

//This single line is enough
SharedClass.sharedInstance.textFieldLeftPadding(textFieldName:yourTF)

Answers so far helped me come up with mine. I'm wary of UTC vs local time; ticks should always be UTC IMO.

public class Time
{
    public static void Timestamps()
    {
        OutputTimestamp();
        Thread.Sleep(1000);
        OutputTimestamp();
    }

    private static void OutputTimestamp()
    {
        var timestamp = DateTime.UtcNow.Ticks;
        var localTicks = DateTime.Now.Ticks;
        var localTime = new DateTime(timestamp, DateTimeKind.Utc).ToLocalTime();
        Console.Out.WriteLine("Timestamp = {0}.  Local ticks = {1}.  Local time = {2}.", timestamp, localTicks, localTime);
    }
}

Output:

Timestamp = 636988286338754530.  Local ticks = 636988034338754530.  Local time = 2019-07-15 4:03:53 PM.
Timestamp = 636988286348878736.  Local ticks = 636988034348878736.  Local time = 2019-07-15 4:03:54 PM.

Had a similar issue. But it is important to understand the root cause and it may vary for different use cases.

Scenario 1
You are trying to decrypt a value which was not encoded correctly in the first place.

byte[] encryptedBytes = Base64.decodeBase64(encryptedBase64String);

If the String is misconfigured for certain reason or has not been encoded correctly, you would see the error " Input length must be multiple of 16 when decrypting with padded cipher"

Scenario 2
Now if by any chance you are using this encoded string in url (trying to pass in the base64Encoded value in url, it will fail. You should do URLEncoding and then pass in the token, it will work.

Scenario 3
When integrating with one of the vendors, we found that we had to do encryption of Base64 using URLEncoder but then we need not decode it because it was done internally by the Vendor

Simple method to get the records count:

df.count()[0]

You need to trigger the onChange event manually. On text inputs onChange listens for input events.

So in you handleClick function you need to trigger event like

handleClick () {
    this.setState({value: 'another random text'})
    var event = new Event('input', { bubbles: true });
    this.myinput.dispatchEvent(event);
  }

Complete code

class App extends React.Component {
  constructor(props) {
    super(props)
    this.state = {
    value: 'random text'
    }
  }
  handleChange (e) {
    console.log('handle change called')
  }
  handleClick () {
    this.setState({value: 'another random text'})
    var event = new Event('input', { bubbles: true });
    this.myinput.dispatchEvent(event);
  }
  render () {
    return (
      <div>
        <input readOnly value={this.state.value} onChange={(e) => {this.handleChange(e)}} ref={(input)=> this.myinput = input}/>
        <button onClick={this.handleClick.bind(this)}>Change Input</button>
      </div>
    )
  }
}

ReactDOM.render(<App />,  document.getElementById('app'))

Codepen

Edit: As Suggested by @Samuel in the comments, a simpler way would be to call handleChange from handleClick if you don't need to the event object in handleChange like

handleClick () {
    this.setState({value: 'another random text'})
    this.handleChange();
  }

I hope this is what you need and it helps you.

If you really want to read through all of the back and forth on this age-old debate, do a search for "natural key" on Stack Overflow. You should get back pages of results.

var input = "12342";
var output = input.Substring(0, input.Length - 1); 

or

var output = input.Remove(input.Length - 1);

I like:

Dim timeFormat As String = "yyyy-MM-dd HH:mm:ss"
myDate.ToString(timeFormat)

Easy to maintain if you need to use it in several parts of your code, date formats always seem to change sooner or later.

Code for background image of a Button in Swift 3.0

buttonName.setBackgroundImage(UIImage(named: "facebook.png"), for: .normal)

Hope this will help someone.

Use ROW_NUMBER() instead. ROWNUM is a pseudocolumn and ROW_NUMBER() is a function. You can read about difference between them and see the difference in output of below queries:

SELECT * FROM (SELECT rownum, deptno, ename
           FROM scott.emp
        ORDER BY deptno
       )
 WHERE rownum <= 3
 /

ROWNUM    DEPTNO    ENAME
---------------------------
 7        10    CLARK
 14       10    MILLER
 9        10    KING


 SELECT * FROM 
 (
  SELECT deptno, ename
       , ROW_NUMBER() OVER (ORDER BY deptno) rno
  FROM scott.emp
 ORDER BY deptno
 )
WHERE rno <= 3
/

DEPTNO    ENAME    RNO
-------------------------
10    CLARK        1
10    MILLER       2
10    KING         3

Since SQL 2012 you can run the following statement:

Exec sp_describe_first_result_set @tsql= N'Select * from <yourtable>'

If you enter a complex select statement (joins, subselects, etc), it will give you the definition of the result set. This is very handy, if you need to create a new table (or temp table) and you don't want to check every single field definition manually.

https://docs.microsoft.com/en-us/sql/relational-databases/system-stored-procedures/sp-describe-first-result-set-transact-sql

If you are not going to use the NumPy library, you can use the nested list. This is code to implement the dynamic nested list (2-dimensional lists).

Let r is the number of rows

let r=3

m=[]
for i in range(r):
    m.append([int(x) for x in raw_input().split()])

Any time you can append a row using

m.append([int(x) for x in raw_input().split()])

Above, you have to enter the matrix row-wise. To insert a column:

for i in m:
    i.append(x) # x is the value to be added in column

To print the matrix:

print m       # all in single row

for i in m:
    print i   # each row in a different line

use 'marginTop' instead of MarginTop

$(this).find('.info').animate({ 'marginTop': '-50px', opacity: 0.5 }, 1000);

Change the customBinding in the web.config to use larger defaults. I picked 2MB as it is a reasonable size. Of course setting it to 2GB (as your code suggests) will work but it does leave you more vulnerable to attacks. Pick a size that is larger than your largest request but isn't overly large.

Check this : Using Large Message Requests in Silverlight with WCF

<system.serviceModel>
   <behaviors>
     <serviceBehaviors>
       <behavior name="TestLargeWCF.Web.MyServiceBehavior">
         <serviceMetadata httpGetEnabled="true"/>
         <serviceDebug includeExceptionDetailInFaults="false"/>
       </behavior>
     </serviceBehaviors>
   </behaviors>
   <bindings>
     <customBinding>
       <binding name="customBinding0">
         <binaryMessageEncoding />
         <!-- Start change -->
         <httpTransport maxReceivedMessageSize="2097152"
                        maxBufferSize="2097152"
                        maxBufferPoolSize="2097152"/>
         <!-- Stop change -->
       </binding>
     </customBinding>
   </bindings>
   <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
   <services>
     <service behaviorConfiguration="Web.MyServiceBehavior" name="TestLargeWCF.Web.MyService">
       <endpoint address=""
                binding="customBinding"
                bindingConfiguration="customBinding0"
                contract="TestLargeWCF.Web.MyService"/>
       <endpoint address="mex"
                binding="mexHttpBinding"
                contract="IMetadataExchange"/>
     </service>
   </services>
 </system.serviceModel> 

This error is very common, often the very first one you get on trying to establish a connection to your database. I suggest those 6 steps to fix ORA-12154 :

1. Check instance name has been entered correctly in tnsnames.ora.
2. There should be no control characters at the end of the instance or database name.
3. All paranthesis around the TNS entry should be properly terminated
4. Domain name entry in sqlnet.ora should not be conflicting with full database name.
5. If problem still persists, try to re-create TNS entry in tnsnames.ora.
6. At last you may add new entries using the SQL*Net Easy configuration utility.

For more informations : http://turfybot.free.fr/oracle/11g/errors/ORA-12154.html

Notepad++ changed in the past couple of years, and it requires a few extra steps to set up a dark theme.

The answer by Amit-IO is good, but the example theme that is needed has stopped being maintained. The DraculaTheme is active. Just download the XML and put it in a themes folder. You may need Admin access in Windows.

C:\Users\YOUR_USER\AppData\Roaming\Notepad++\themes

https://draculatheme.com/notepad-plus-plus

Call MyMacro()

ActiveCell.Offset(1, 0).Activate

Do Until Selection.EntireRow.Hidden = False
If Selection.EntireRow.Hidden = True Then
ActiveCell.Offset(1, 0).Activate
End If
Loop

Using android:singleLine="true" is deprecated.

Just add your input type and set maxline to 1 and everything will work fine

android:inputType="text"
android:maxLines="1"

It depends on what you are trying to do.

file, err := os.Open("file.txt")
fmt.print(file)

The reason it outputs &{0xc082016240}, is because you are printing the pointer value of a file-descriptor (*os.File), not file-content. To obtain file-content, you may READ from a file-descriptor.

To read all file content(in bytes) to memory, ioutil.ReadAll

package main

import (
    "fmt"
    "io/ioutil"
    "os"
    "log"
)

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()


  b, err := ioutil.ReadAll(file)
  fmt.Print(b)
}

But sometimes, if the file size is big, it might be more memory-efficient to just read in chunks: buffer-size, hence you could use the implementation of io.Reader.Read from *os.File

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()


    buf := make([]byte, 32*1024) // define your buffer size here.

    for {
        n, err := file.Read(buf)

        if n > 0 {
            fmt.Print(buf[:n]) // your read buffer.
        }

        if err == io.EOF {
            break
        }
        if err != nil {
            log.Printf("read %d bytes: %v", n, err)
            break
        }
    }

}

Otherwise, you could also use the standard util package: bufio, try Scanner. A Scanner reads your file in tokens: separator.

By default, scanner advances the token by newline (of course you can customise how scanner should tokenise your file, learn from here the bufio test).

package main

import (
    "fmt"
    "os"
    "log"
    "bufio"
)

func main() {
    file, err := os.Open("file.txt")
    if err != nil {
        log.Fatal(err)
    }
    defer func() {
        if err = f.Close(); err != nil {
            log.Fatal(err)
        }
    }()

    scanner := bufio.NewScanner(file)

    for scanner.Scan() {             // internally, it advances token based on sperator
        fmt.Println(scanner.Text())  // token in unicode-char
        fmt.Println(scanner.Bytes()) // token in bytes

    }
}

Lastly, I would also like to reference you to this awesome site: go-lang file cheatsheet. It encompassed pretty much everything related to working with files in go-lang, hope you'll find it useful.

You can use the Java Geodesy Library for GPS, it uses the Vincenty's formulae which takes account of the earths surface curvature.

Implementation goes like this:

import org.gavaghan.geodesy.*;

...

GeodeticCalculator geoCalc = new GeodeticCalculator();

Ellipsoid reference = Ellipsoid.WGS84;  

GlobalPosition pointA = new GlobalPosition(latitude, longitude, 0.0); // Point A

GlobalPosition userPos = new GlobalPosition(userLat, userLon, 0.0); // Point B

double distance = geoCalc.calculateGeodeticCurve(reference, userPos, pointA).getEllipsoidalDistance(); // Distance between Point A and Point B

The resulting distance is in meters.

Well, if you're reading the data in as a list, just do np.array(map(float, list_of_strings)) (or equivalently, use a list comprehension). (In Python 3, you'll need to call list on the map return value if you use map, since map returns an iterator now.)

However, if it's already a numpy array of strings, there's a better way. Use astype().

import numpy as np
x = np.array(['1.1', '2.2', '3.3'])
y = x.astype(np.float)

The object you're saving should have a correct Id after propagating changes into database.

Just use which sounds better. I'd use the first approach, though, because it seems to have fewer operations.

In the example you give, you're perfectly right, you have to set the title attribute.

If the aria-label is one tool used by assistive technologies (like screen readers), it is not natively supported on browsers and has no effect on them. It won't be of any help to most of the people targetted by the WCAG (except screen reader users), for instance a person with intellectal disabilities.

The "X" is not sufficient enough to give information to the action led by the button (think about someone with no computer knowledge). It might mean "close", "delete", "cancel", "reduce", a strange cross, a doodle, nothing.

Despite the fact that the W3C seems to promote the aria-label rather that the title attribute here: http://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140916/ARIA14 in a similar example, you can see that the technology support does not include standard browsers : http://www.w3.org/WAI/WCAG20/Techniques/ua-notes/aria#ARIA14

In fact aria-label, in this exact situation might be used to give more context to an action:

For instance, blind people do not perceive popups like those of us with good vision, it's like a change of context. "Back to the page" will be a more convenient alternative for a screen reader, when "Close" is more significant for someone with no screen reader.

  <button
      aria-label="Back to the page"
      title="Close" onclick="myDialog.close()">X</button>

AsyncTask is designed to perform not more than few seconds operation to be done in background (not recommended for megabytes of file downloading from server or compute cpu intensive task such as file IO operations ). If you need to execute a long running operation, you have been strongly advised to use java native threads. Java gives you various thread related classes to do what you need. Use Handler to update the UI Thread.

Personally I think it's not good, that your function "hides" invalid values as false and - depending on your use cases - doesn't return true for "1".

Another problem could be that it barfs on anything that's not a string.

I would use something like this:

function parseBool(value) {
  if (typeof value === "string") {
     value = value.replace(/^\s+|\s+$/g, "").toLowerCase();
     if (value === "true" || value === "false")
       return value === "true";
  }
  return; // returns undefined
}

And depending on the use cases extend it to distinguish between "0" and "1".

(Maybe there is a way to compare only once against "true", but I couldn't think of something right now.)

This can be done by adding a reference to System.IO.Compression and System.IO.Compression.Filesystem.

A sample createZipFile() method may look as following:

public static void createZipFile(string inputfile, string outputfile, CompressionLevel compressionlevel)
        {
            try
            {
                using (ZipArchive za = ZipFile.Open(outputfile, ZipArchiveMode.Update))
                {
                    //using the same file name as entry name
                    za.CreateEntryFromFile(inputfile, inputfile);
                }
            }
            catch (ArgumentException)
            {
                Console.WriteLine("Invalid input/output file.");
                Environment.Exit(-1);
            }
}

where

• inputfile= string with the file name to be compressed (for this example, you have to add the extension)
• outputfile= string with the destination zip file name

More details about ZipFile Class in MSDN

Chrome DevTools, Safari Inspector and Firebug support getEventListeners(node).

Date mDate = new Date(System.currentTimeMillis());
mDate.getMonth() + 1

The returned value starts from 0, so you should add one to the result.

When I tried to access the result from

Object.keys(a).forEach(function (key){ console.log(a[key]); });

it was plain text result with no key-value pairs Here is an example

var fruits = {
    apple: "fruits/apple.png",
    banana: "fruits/banana.png",
    watermelon: "watermelon.jpg",
    grapes: "grapes.png",
    orange: "orange.jpg"
}

Now i want to get all links in a separated array , but with this code

    function linksOfPics(obJect){
Object.keys(obJect).forEach(function(x){
    console.log('\"'+obJect[x]+'\"');
});
}

the result of :

linksOfPics(fruits)



"fruits/apple.png"
 "fruits/banana.png"
 "watermelon.jpg"
 "grapes.png"
 "orange.jpg"
undefined

I figured out this one which solves what I'm looking for

  console.log(Object.values(fruits));
["fruits/apple.png", "fruits/banana.png", "watermelon.jpg", "grapes.png", "orange.jpg"]

Since Eclipse Neon which contains Eclipse Maven Integration (m2e) 1.7, the preferred way is one of the following ways:

• File > Projects from File System... - This works for Eclipse projects (containing the file .project) as well as for non-Eclipse projects that only contain the file pom.xml.
• If importing from a Git repository, in the Git Repositories view right-click the repository node, one folder or multiple selected folders in the Working Tree and choose Import Projects.... This opens the same dialog, but you don't have to select the directory.

I have done it like:

            using (StreamReader sr = File.OpenText(jsonFilePath))
            {
                var myObject = JsonConvert.DeserializeObject<List<YourObject>>(sr.ReadToEnd());
            }

also, you can do this with async call like: sr.ReadToEndAsync(). using Newtonsoft.Json as reference.

Hope, this helps.

In addition to the popular answer above I would like to add a few notes for Windows-systems. The command

git filter-branch --tree-filter 'rm -rf node_modules' --prune-empty HEAD

• works perfectly without any modification! Therefore, you must not use Remove-Item, del or anything else instead of rm -rf.

• If you need to specify a path to a file or directory use slashes like ./path/to/node_modules

There are two types of contexts we are dealing with:

1: root context (parent context. Typically include all jdbc(ORM, Hibernate) initialisation and other spring security related configuration)

2: individual servlet context (child context.Typically Dispatcher Servlet Context and initialise all beans related to spring-mvc (controllers , URL Mapping etc)).

Here is an example of web.xml which includes multiple application context file

<?xml version="1.0" encoding="UTF-8"?>_x000D_
<web-app xmlns="http://java.sun.com/xml/ns/javaee"_x000D_
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"_x000D_
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee_x000D_
                            http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">_x000D_
_x000D_
    <display-name>Spring Web Application example</display-name>_x000D_
_x000D_
    <!-- Configurations for the root application context (parent context) -->_x000D_
    <listener>_x000D_
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>_x000D_
    </listener>_x000D_
    <context-param>_x000D_
        <param-name>contextConfigLocation</param-name>_x000D_
        <param-value>_x000D_
            /WEB-INF/spring/jdbc/spring-jdbc.xml <!-- JDBC related context -->_x000D_
            /WEB-INF/spring/security/spring-security-context.xml <!-- Spring Security related context -->_x000D_
        </param-value>_x000D_
    </context-param>_x000D_
_x000D_
    <!-- Configurations for the DispatcherServlet application context (child context) -->_x000D_
    <servlet>_x000D_
        <servlet-name>spring-mvc</servlet-name>_x000D_
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>_x000D_
        <init-param>_x000D_
            <param-name>contextConfigLocation</param-name>_x000D_
            <param-value>_x000D_
                /WEB-INF/spring/mvc/spring-mvc-servlet.xml_x000D_
            </param-value>_x000D_
        </init-param>_x000D_
    </servlet>_x000D_
    <servlet-mapping>_x000D_
        <servlet-name>spring-mvc</servlet-name>_x000D_
        <url-pattern>/admin/*</url-pattern>_x000D_
    </servlet-mapping>_x000D_
_x000D_
</web-app>

C is meant to be a step above assembly language. The C if-statement is really just syntactical sugar for "branch-if-zero", so the idea of booleans as an independent datatype was a foreign concept at the time. (1)

Even now, C/C++ booleans are usually little more than an alias for a single byte data type. As such, it's really more of a purposing label than an independent datatype.

(1) Of course, modern compilers are a bit more advanced in their handling of if statements. This is from the standpoint of C as a new language.

I use this

for dir in $(find . -name ".git")
do cd ${dir%/*}
    echo $PWD
    git pull
    echo ""
    cd - > /dev/null
done

Github

This might be a late answer but this is the best around: https://github.com/eKoopmans/html2pdf

Pure javascript implementation. Allows you to specify just a single element by ID and convert it.

I believe you need something similar to the following:

<script type="text/javascript">
var count;
function increment(){
    count++;
}
</script>

...

and

<input type="button" onClick="increment()" value="Increment"/>

or

<input type="button" onClick="count++" value="Increment"/>

ngOnInit() {
     const $ = window["$"];
     $('.flexslider').flexslider({
        animation: 'slide',
        start: function (slider) {
          $('body').removeClass('loading')
        }
     })
}

Note that, image slicing is not creating a copy of the cropped image but creating a pointer to the roi. If you are loading so many images, cropping the relevant parts of the images with slicing, then appending into a list, this might be a huge memory waste.

Suppose you load N images each is >1MP and you need only 100x100 region from the upper left corner.

Slicing:

X = []
for i in range(N):
    im = imread('image_i')
    X.append(im[0:100,0:100]) # This will keep all N images in the memory. 
                              # Because they are still used.

Alternatively, you can copy the relevant part by .copy(), so garbage collector will remove im.

X = []
for i in range(N):
    im = imread('image_i')
    X.append(im[0:100,0:100].copy()) # This will keep only the crops in the memory. 
                                     # im's will be deleted by gc.

After finding out this, I realized one of the comments by user1270710 mentioned that but it took me quite some time to find out (i.e., debugging etc). So, I think it worths mentioning.

I had the same issue because I had 2 .git folders in the working directory.

Your problem may be caused by the same thing, so I recommend checking to see if you have multiple .git folders, and, if so, deleting one of them.

That allowed me to upload the project successfully.

The following method does not depend on any 'add-on's and is not very painful.

Step through each of your source files and

1. Select all (Ctrl-A)
2. Toggle outline expansion (Ctrl-M, M). This will reduce the file to two lines.
3. Click on the namespace's '+'. This will show each of the file's classes as a single line. Scan each class's reference count, looking for unreferenced classes.
4. Click on each of the classes' '+'. This will show each of the class functions as a single line. Scan each function's reference count, looking for unreferenced functions.

Scanning each file looking for '0 reference' takes only a second.

Scanning an entire project takes only a couple of minutes.

Use this

$array = array();
$subArray=array();
$sql_results = mysql_query('SELECT * FROM `location`');

while($row = mysql_fetch_array($sql_results))
{
    $subArray[location_id]=$row['location'];  //location_id is key and $row['location'] is value which come fron database.
    $subArray[x]=$row['x'];
    $subArray[y]=$row['y'];


 $array[] =  $subArray ;
}
echo'{"ProductsData":'.json_encode($array).'}';

The correct php way is to use parse_url()

http://php.net/manual/en/function.parse-url.php

(from php manual)

This function parses a URL and returns an associative array containing any of the various components of the URL that are present.

This function is not meant to validate the given URL, it only breaks it up into the above listed parts. Partial URLs are also accepted, parse_url() tries its best to parse them correctly.

i know a way ny which you can call you private function to test in mockito

@Test
    public  void  commandEndHandlerTest() throws  Exception
    {
        Method retryClientDetail_privateMethod =yourclass.class.getDeclaredMethod("Your_function_name",null);
        retryClientDetail_privateMethod.setAccessible(true);
        retryClientDetail_privateMethod.invoke(yourclass.class, null);
    }

Explanation of Serialize and Deserialize using Python

In python, pickle module is used for serialization. So, the serialization process is called pickling in Python. This module is available in Python standard library.

Serialization using pickle

import pickle

#the object to serialize
example_dic={1:"6",2:"2",3:"f"}

#where the bytes after serializing end up at, wb stands for write byte
pickle_out=open("dict.pickle","wb")
#Time to dump
pickle.dump(example_dic,pickle_out)
#whatever you open, you must close
pickle_out.close()

The PICKLE file (can be opened by a text editor like notepad) contains this (serialized data):

€}q (KX 6qKX 2qKX fqu.

Deserialization using pickle

import pickle

pickle_in=open("dict.pickle","rb")
get_deserialized_data_back=pickle.load(pickle_in)

print(get_deserialized_data_back)

Output:

{1: '6', 2: '2', 3: 'f'}

A pretty straight forward solution to print binary:

#include <iostream>
using namespace std;
int main()
{
 int num,arr[64];
 cin>>num;
 int i=0,r;
 while(num!=0)
{
  r = num%2;
  arr[i++] = r;
  num /= 2;
}

for(int j=i-1;j>=0;j--){
 cout<<arr[j];
  }
}

Predicate<Client> hasSameNameAsOneUser = 
    c -> users.stream().anyMatch(u -> u.getName().equals(c.getName()));

return clients.stream()
              .filter(hasSameNameAsOneUser)
              .collect(Collectors.toList());

But this is quite inefficient, because it's O(m * n). You'd better create a Set of acceptable names:

Set<String> acceptableNames = 
    users.stream()
         .map(User::getName)
         .collect(Collectors.toSet());

return clients.stream()
              .filter(c -> acceptableNames.contains(c.getName()))
              .collect(Collectors.toList());

Also note that it's not strictly equivalent to the code you have (if it compiled), which adds the same client twice to the list if several users have the same name as the client.

With Visual Studio 1.43 (Q1 2020), the Ctrl+K then O keyboard shortcut will work for a file.

See issue 89989:

It should be possible to e.g. invoke the "Open Active File in New Window" command and open that file into an empty workspace in the web.

Here are my 2 cents. Nothing new, but some explanations, improvements and newer code.

By default, RestTemplate has infinite timeout. There are two kinds of timeouts: connection timeout and read time out. For instance, I could connect to the server but I could not read data. The application was hanging and you have no clue what's going on.

I am going to use annotations, which these days are preferred over XML.

@Configuration
public class AppConfig {

    @Bean
    public RestTemplate restTemplate() {

        var factory = new SimpleClientHttpRequestFactory();

        factory.setConnectTimeout(3000);
        factory.setReadTimeout(3000);

        return new RestTemplate(factory);
    }
}

Here we use SimpleClientHttpRequestFactory to set the connection and read time outs. It is then passed to the constructor of RestTemplate.

@Configuration
public class AppConfig {

    @Bean
    public RestTemplate restTemplate(RestTemplateBuilder builder) {

        return builder
                .setConnectTimeout(Duration.ofMillis(3000))
                .setReadTimeout(Duration.ofMillis(3000))
                .build();
    }
}

In the second solution, we use the RestTemplateBuilder. Also notice the parameters of the two methods: they take Duration. The overloaded methods that take directly milliseconds are now deprecated.

Edit Tested with Spring Boot 2.1.0 and Java 11.

That's no struts related problem but rather plain HMTL/CSS.

I'm not HTML or CSS expert, but I guess you could use a div with a border on the left or right side only.

CSV Files with Custom Delimiters

By default, a comma is used as a delimiter in a CSV file. However, some CSV files can use delimiters other than a comma. Few popular ones are | and \t.

import csv
data_list = [["SN", "Name", "Contribution"],
             [1, "Linus Torvalds", "Linux Kernel"],
             [2, "Tim Berners-Lee", "World Wide Web"],
             [3, "Guido van Rossum", "Python Programming"]]
with open('innovators.csv', 'w', newline='') as file:
    writer = csv.writer(file, delimiter='|')
    writer.writerows(data_list)

output:

SN|Name|Contribution
1|Linus Torvalds|Linux Kernel
2|Tim Berners-Lee|World Wide Web
3|Guido van Rossum|Python Programming

Write CSV files with quotes

import csv

row_list = [["SN", "Name", "Contribution"],
             [1, "Linus Torvalds", "Linux Kernel"],
             [2, "Tim Berners-Lee", "World Wide Web"],
             [3, "Guido van Rossum", "Python Programming"]]
with open('innovators.csv', 'w', newline='') as file:
    writer = csv.writer(file, quoting=csv.QUOTE_NONNUMERIC, delimiter=';')
    writer.writerows(row_list) 

output:

"SN";"Name";"Contribution"
1;"Linus Torvalds";"Linux Kernel"
2;"Tim Berners-Lee";"World Wide Web"
3;"Guido van Rossum";"Python Programming"

As you can see, we have passed csv.QUOTE_NONNUMERIC to the quoting parameter. It is a constant defined by the csv module.

csv.QUOTE_NONNUMERIC specifies the writer object that quotes should be added around the non-numeric entries.

There are 3 other predefined constants you can pass to the quoting parameter:

• csv.QUOTE_ALL - Specifies the writer object to write CSV file with quotes around all the entries.
• csv.QUOTE_MINIMAL - Specifies the writer object to only quote those fields which contain special characters (delimiter, quotechar or any characters in lineterminator)
• csv.QUOTE_NONE - Specifies the writer object that none of the entries should be quoted. It is the default value.

import csv

row_list = [["SN", "Name", "Contribution"],
             [1, "Linus Torvalds", "Linux Kernel"],
             [2, "Tim Berners-Lee", "World Wide Web"],
             [3, "Guido van Rossum", "Python Programming"]]
with open('innovators.csv', 'w', newline='') as file:
    writer = csv.writer(file, quoting=csv.QUOTE_NONNUMERIC,
                        delimiter=';', quotechar='*')
    writer.writerows(row_list)

output:

*SN*;*Name*;*Contribution*
1;*Linus Torvalds*;*Linux Kernel*
2;*Tim Berners-Lee*;*World Wide Web*
3;*Guido van Rossum*;*Python Programming*

Here, we can see that quotechar='*' parameter instructs the writer object to use * as quote for all non-numeric values.

This means a class is redundantly mentioned with a class function. Try removing JSONDeserializer::

if you want any hope of ever using an index, store the data in a consistent manner (with the spaces removed). Either just remove the spaces or add a persisted computed column, Then you can just select from that column and not have to add all the space removing overhead every time you run your query.

add a PERSISTED computed column:

ALTER TABLE Contacts ADD PostcodeSpaceFree AS Replace(Postcode, ' ', '') PERSISTED 
go
CREATE NONCLUSTERED INDEX IX_Contacts_PostcodeSpaceFree 
ON Contacts (PostcodeSpaceFree) --INCLUDE (covered columns here!!)
go

to just fix the column by removing the spaces use:

UPDATE Contacts
    SET Postcode=Replace(Postcode, ' ', '')

now you can search like this, either select can use an index:

--search the PERSISTED computed column
SELECT 
    PostcodeSpaceFree 
    FROM Contacts
    WHERE PostcodeSpaceFree  LIKE 'NW101%'

or

--search the fixed (spaces removed column)
SELECT 
    Postcode
    FROM Contacts
    WHERE PostcodeLIKE 'NW101%'

Not very clear what your issue is, but it sounds like you want something like this:

    List<string> printer = new List<string>( new [] { "jupiter", "neptune", "pangea", "mercury", "sonic" } );

    if( printer.Exists( p => p.Equals( "jupiter" ) ) )
    {
        ...
    }

There is an option in Postman if you download it from https://www.getpostman.com instead of the chrome store (most probably it has been introduced in the new versions and the chrome one will be updated later) not sure about the old ones.

In the settings, turn off the SSL certificate verification option

Be sure to remember to reactivate it afterwards, this is a security feature.

If you really want to use the chrome app, you could always add an exception to chrome for the url: Enter the url you would like to open in the chrome browser, you'll get a warning with a link at the bottom of the page to add an exception, which if you do, it will also allow postman to access your url. But the first option of using the postman stand-alone app is much better.

I hope this can help.

#!/usr/bin/python
# -*- coding: utf-8 -*-
# consume_wsdl_soap_ws_pss.py
import logging.config
from pysimplesoap.client import SoapClient

logging.config.dictConfig({
    'version': 1,
    'formatters': {
        'verbose': {
            'format': '%(name)s: %(message)s'
        }
    },
    'handlers': {
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
            'formatter': 'verbose',
        },
    },
    'loggers': {
        'pysimplesoap.helpers': {
            'level': 'DEBUG',
            'propagate': True,
            'handlers': ['console'],
        },
    }
})

WSDL_URL = 'http://www.webservicex.net/stockquote.asmx?WSDL'
client = SoapClient(wsdl=WSDL_URL, ns="web", trace=True)
client['AuthHeaderElement'] = {'username': 'someone', 'password': 'nottelling'}

#Discover operations
list_of_services = [service for service in client.services]
print(list_of_services)

#Discover params
method = client.services['StockQuote']

response = client.GetQuote(symbol='GOOG')
print('GetQuote: {}'.format(response['GetQuoteResult']))

You can normally check for ASCII letters or numbers using simple conditions

if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
{
    /*This is an alphabet*/
}

For digits you can use

if (ch >= '0' && ch <= '9')
{
    /*It is a digit*/
}

But since characters in C are internally treated as ASCII values you can also use ASCII values to check the same.

How to check if a character is number or letter

I founded the problem: Just insert the folder without the executable file.
so Instead of:

C:\Program Files (x86)\SumatraPDF\SumatraPDF.exe

you have to write this:

C:\Program Files (x86)\SumatraPDF\

If your object is not polymorphic (and a stack implementation likely isn't), then as per other answers here, what you want is the copy constructor. Please note that there are differences between copy construction and assignment in C++; if you want both behaviors (and the default versions don't fit your needs), you'll have to implement both functions.

If your object is polymorphic, then slicing can be an issue and you might need to jump through some extra hoops to do proper copying. Sometimes people use as virtual method called clone() as a helper for polymorphic copying.

Finally, note that getting copying and assignment right, if you need to replace the default versions, is actually quite difficult. It is usually better to set up your objects (via RAII) in such a way that the default versions of copy/assign do what you want them to do. I highly recommend you look at Meyer's Effective C++, especially at items 10,11,12.

Ascii string to integer conversion is done by the atoi() function.

Not an answer to your question, but I wouldn't use case-sensitive shortened URLs. They are hard to remember, usually unreadable (many fonts render 1 and l, 0 and O and other characters very very similar that they are near impossible to tell the difference) and downright error prone. Try to use lower or upper case only.

Also, try to have a format where you mix the numbers and characters in a predefined form. There are studies that show that people tend to remember one form better than others (think phone numbers, where the numbers are grouped in a specific form). Try something like num-char-char-num-char-char. I know this will lower the combinations, especially if you don't have upper and lower case, but it would be more usable and therefore useful.

I need to decrypt a password. The password is crypted with password_hash function.

$password = 'examplepassword';
$crypted = password_hash($password, PASSWORD_DEFAULT);

Its not clear to me if you need password_verify, or you are trying to gain unauthorized access to the application or database. Other have talked about password_verify, so here's how you could gain unauthorized access. Its what bad guys often do when they try to gain access to a system.

First, create a list of plain text passwords. A plain text list can be found in a number of places due to the massive data breaches from companies like Adobe. Sort the list and then take the top 10,000 or 100,000 or so.

Second, create a list of digested passwords. Simply encrypt or hash the password. Based on your code above, it does not look like a salt is being used (or its a fixed salt). This makes the attack very easy.

Third, for each digested password in the list, perform a select in an attempt to find a user who is using the password:

$sql_script = 'select * from USERS where password="'.$digested_password.'"'

Fourth, profit.

So, rather than picking a user and trying to reverse their password, the bad guy picks a common password and tries to find a user who is using it. Odds are on the bad guy's side...

Because the bad guy does these things, it would behove you to not let users choose common passwords. In this case, take a look at ProCheck, EnFilter or Hyppocrates (et al). They are filtering libraries that reject bad passwords. ProCheck achieves very high compression, and can digest multi-million word password lists into a 30KB data file.

If you are going to write this include manually in the PHP file - the answer of Daff is perfect.

Anyway, if you need to do what was the initial question, here is a small simple function to achieve that:

<?php
// Include php file from string with GET parameters
function include_get($phpinclude)
{
    // find ? if available
    $pos_incl = strpos($phpinclude, '?');
    if ($pos_incl !== FALSE)
    {
        // divide the string in two part, before ? and after
        // after ? - the query string
        $qry_string = substr($phpinclude, $pos_incl+1);
        // before ? - the real name of the file to be included
        $phpinclude = substr($phpinclude, 0, $pos_incl);
        // transform to array with & as divisor
        $arr_qstr = explode('&',$qry_string);
        // in $arr_qstr you should have a result like this:
        //   ('id=123', 'active=no', ...)
        foreach ($arr_qstr as $param_value) {
            // for each element in above array, split to variable name and its value
            list($qstr_name, $qstr_value) = explode('=', $param_value);
            // $qstr_name will hold the name of the variable we need - 'id', 'active', ...
            // $qstr_value - the corresponding value
            // $$qstr_name - this construction creates variable variable
            // this means from variable $qstr_name = 'id', adding another $ sign in front you will receive variable $id
            // the second iteration will give you variable $active and so on
            $$qstr_name = $qstr_value;
        }
    }
    // now it's time to include the real php file
    // all necessary variables are already defined and will be in the same scope of included file
    include($phpinclude);
}

?>

I'm using this variable variable construction very often.

Try this:

myscript """test"""

"" escape to a single " in the parameter.

The IN was too slow in my situation (180 secs)

So I used a JOIN instead (0.3 secs)

SELECT i.id, i.payer_email
FROM paypal_ipn_orders i
INNER JOIN (
 SELECT payer_email
    FROM paypal_ipn_orders 
    GROUP BY payer_email
    HAVING COUNT( id ) > 1
) j ON i.payer_email=j.payer_email

Using jquery:

<form action="upload" enctype="multipart/form-data" method="post">
                
    Upload image:
    <input id="image-file" type="file" name="file" />
    <input type="submit" value="Upload" />

    <script type="text/javascript">
        $('#image-file').bind('change', function() {
            alert('This file size is: ' + this.files[0].size/1024/1024 + "MiB");
        });
    </script>

</form>

I changed to following and it worked for me

<tr>
    <td bgcolor="#7d9aaa" style="color: #fff; font-size:15px; font-family:Arial, Helvetica, sans-serif; padding: 12px 2px 12px 0px; ">                              
        <table style="width:620px; border:0; text-align:center;" cellpadding="0" cellspacing="0">               
            <td style="font-weight: bold;padding-right:160px;color: #fff">Order Confirmation </td>                    
            <td style="font-weight: bold;width:260px;color: #fff">Your Confirmation number is {{var order.increment_id}} </td>              
        </table>                    
    </td>
</tr>

Update based on Bsalex request what has actually changed. I replaced span tag

<span style="font-weight: bold;padding-right:150px;padding-left: 35px;">Order Confirmation </span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<span style="font-weight: bold;width:400px;"> Your Confirmation number is {{var order.increment_id}} </span>

with table and td tags as following

   <table style="width:620px; border:0; text-align:center;" cellpadding="0" cellspacing="0"> 
      <td style="font-weight: bold;padding-right:160px;color: #fff">Order Confirmation </td>
      <td style="font-weight: bold;width:260px;color: #fff">Your Confirmation number is {{var order.increment_id}} </td>
   </table>

document.location.href = newUrl;

https://developer.mozilla.org/en-US/docs/Web/API/document.location

Sometimes it doesn't get login with username = root and password, then you can change the default settings or the reset settings.

Open config.inc.php file in the phpmyadmin folder

Instead of

$cfg['Servers'][$i]['AllowNoPassword'] = false;

change it to:

$cfg['Servers'][$i]['AllowNoPassword'] = true;

Do not specify any password and put the user name as it was before, which means root.

E.g.

$cfg['Servers'][$i]['user'] = 'root';
$cfg['Servers'][$i]['password'] = '';

This worked for me after i had edited my config.inc.php file.

Check your dependencies.

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>SchoolApp</groupId>
  <artifactId>SchoolApp</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <properties>
    <hibernate.version>4.2.0.Final</hibernate.version>
    <mysql.connector.version>5.1.21</mysql.connector.version>
    <spring.version>3.2.2.RELEASE</spring.version>
  </properties>

  <dependencies>
    <!-- DB related dependencies -->
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-core</artifactId>
      <version>${hibernate.version}</version>
    </dependency>
    <dependency>
      <groupId>org.hibernate</groupId>
      <artifactId>hibernate-entitymanager</artifactId>
      <version>${hibernate.version}</version>
    </dependency>
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.connector.version}</version>
    </dependency>
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>
    <dependency>
      <groupId>javassist</groupId>
      <artifactId>javassist</artifactId>
      <version>3.12.1.GA</version>
    </dependency>
    <!-- SPRING -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-orm</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- Spring Security  -->
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-core</artifactId>
      <version>3.1.3.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-web</artifactId>
      <version>3.1.3.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-config</artifactId>
      <version>3.1.3.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.security</groupId>
      <artifactId>spring-security-taglibs</artifactId>
      <version>3.1.3.RELEASE</version>
    </dependency>
    <!-- CGLIB is required to process @Configuration classes -->
    <dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib</artifactId>
      <version>2.2.2</version>
    </dependency>
    <!-- Servlet API and JSTL -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.0.1</version>
      <scope>provided</scope>
    </dependency>
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <!-- Test -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.7</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test-mvc</artifactId>
      <version>1.0.0.M1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <repositories>
    <repository>
      <id>spring-maven-milestone</id>
      <name>Spring Maven Milestone Repository</name>
      <url>http://maven.springframework.org/milestone</url>
    </repository>
  </repositories>

  <build>
    <finalName>spr-mvc-hib</finalName>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>2.3.2</version>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

Amiram Korach solution is indeed tidy. Here's an alternative for the sake of versatility.

var count = dtList.Count;
// Perform a reverse tracking.
for (var i = count - 1; i > -1; i--)
{
    if (dtList[i]==string.Empty) dtList.RemoveAt(i);
}
// Keep only the unique list items.
dtList = dtList.Distinct().ToList();

Using swing you could simply use a JLabel

 public static void main(String[] args) throws MalformedURLException {

        URL url = new URL("<URL to your Animated GIF>");
        Icon icon = new ImageIcon(url);
        JLabel label = new JLabel(icon);

        JFrame f = new JFrame("Animation");
        f.getContentPane().add(label);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.pack();
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    }

I tried all above, but none working

Finally tried this my own

getBaseActivity().getFragmentManager()

and is working .. :)

for (let i = 0; i <= value; i+=n) { // increments by n
/*code statement*/
}

this format works for me incrementing index by n

for (let i = 0; i <= value; i+=4) { // increments by 4
/*code statement*/
}

if n = 4 this it will increment by 4

This is an Oracle-specific notation for an outer join. It means that it will include all rows from t1, and use NULLS in the t0 columns if there is no corresponding row in t0.

In standard SQL one would write:

SELECT t0.foo, t1.bar
  FROM FIRST_TABLE t0
 RIGHT OUTER JOIN SECOND_TABLE t1;

Oracle recommends not to use those joins anymore if your version supports ANSI joins (LEFT/RIGHT JOIN) :

Oracle recommends that you use the FROM clause OUTER JOIN syntax rather than the Oracle join operator. Outer join queries that use the Oracle join operator (+) are subject to the following rules and restrictions […]

Some of these above answers didn't work for me but this did. Just in case someone else has the same issue.

ng-show="column != 'vendorid' && column !='billingMonth'"

php.js ( http://www.phpjs.org/ ) has a isset() function: http://phpjs.org/functions/isset:454

NERDcommenter is an excellent plugin for commenting which automatically detects a number of filetypes and their associated comment characters. Ridiculously easy to install using Pathogen.

Comment with <leader>cc. Uncomment with <leader>cu. And toggle comments with <leader>c<space>.

(The default <leader> key in vim is \)

This can be achieved by using array_walk_recursive

$a = array(1,2,array(3,4, array(5,6,7), 8), 9);
array_walk_recursive($a, function($v) use (&$r){$r[]=$v;});
print_r($r);

Working example :- https://3v4l.org/FpIrG

A subtle alternative to MaxNoe's answer where you aren't explicitly setting the ticks but instead setting the cadence.

import matplotlib.pyplot as plt
from matplotlib.ticker import (AutoMinorLocator, MultipleLocator)

fig, ax = plt.subplots(figsize=(10, 8))

# Set axis ranges; by default this will put major ticks every 25.
ax.set_xlim(0, 200)
ax.set_ylim(0, 200)

# Change major ticks to show every 20.
ax.xaxis.set_major_locator(MultipleLocator(20))
ax.yaxis.set_major_locator(MultipleLocator(20))

# Change minor ticks to show every 5. (20/4 = 5)
ax.xaxis.set_minor_locator(AutoMinorLocator(4))
ax.yaxis.set_minor_locator(AutoMinorLocator(4))

# Turn grid on for both major and minor ticks and style minor slightly
# differently.
ax.grid(which='major', color='#CCCCCC', linestyle='--')
ax.grid(which='minor', color='#CCCCCC', linestyle=':')

Brought my answer over from other thread that may close as a duplicate...

From GIT documentation: Git Docs

Below gives the full information. In short, simple will only push the current working branch and even then only if it also has the same name on the remote. This is a very good setting for beginners and will become the default in GIT 2.0

Whereas matching will push all branches locally that have the same name on the remote. (Without regard to your current working branch ). This means potentially many different branches will be pushed, including those that you might not even want to share.

In my personal usage, I generally use a different option: current which pushes the current working branch, (because I always branch for any changes). But for a beginner I'd suggest simple

push.default
Defines the action git push should take if no refspec is explicitly given. Different values are well-suited for specific workflows; for instance, in a purely central workflow (i.e. the fetch source is equal to the push destination), upstream is probably what you want. Possible values are:

nothing - do not push anything (error out) unless a refspec is explicitly given. This is primarily meant for people who want to avoid mistakes by always being explicit.

current - push the current branch to update a branch with the same name on the receiving end. Works in both central and non-central workflows.

upstream - push the current branch back to the branch whose changes are usually integrated into the current branch (which is called @{upstream}). This mode only makes sense if you are pushing to the same repository you would normally pull from (i.e. central workflow).

simple - in centralized workflow, work like upstream with an added safety to refuse to push if the upstream branch's name is different from the local one.

When pushing to a remote that is different from the remote you normally pull from, work as current. This is the safest option and is suited for beginners.

This mode will become the default in Git 2.0.

matching - push all branches having the same name on both ends. This makes the repository you are pushing to remember the set of branches that will be pushed out (e.g. if you always push maint and master there and no other branches, the repository you push to will have these two branches, and your local maint and master will be pushed there).

To use this mode effectively, you have to make sure all the branches you would push out are ready to be pushed out before running git push, as the whole point of this mode is to allow you to push all of the branches in one go. If you usually finish work on only one branch and push out the result, while other branches are unfinished, this mode is not for you. Also this mode is not suitable for pushing into a shared central repository, as other people may add new branches there, or update the tip of existing branches outside your control.

This is currently the default, but Git 2.0 will change the default to simple.

Go to http://dev.mysql.com/downloads/connector/j and with in the dropdown select "Platform Independent" then it will show you the options to download tar.gz file or zip file.

Download zip file and extract it, with in that you will find mysql-connector-XXX.jar file

If you are using maven then you can add the dependency from the link http://mvnrepository.com/artifact/mysql/mysql-connector-java

Select the version you want to use and add the dependency in your pom.xml file

Add the right lines this way and and the horizontal borders using HR or border-bottom or .col-right-line:after. Don't forget media queries to get rid of the lines on small devices.

.col-right-line:before {
  position: absolute;
  content: " ";
  top: 0;
  right: 0;
  height: 100%;
  width: 1px;
  background-color: @color-neutral;
}

Use TCPView if you want a GUI for this. It's the old Sysinternals application that Microsoft bought out.

If you mean shortcut then

CTRL + M + M: This one will collapse the region your cursor is at whether its a method, namespace or whatever for collapsing code blocks, regions and methods. The first will collapse only the block/method or region your cursor is at while the second will collapse the entire region you are at.

http://www.dev102.com/2008/05/06/11-more-visual-studio-shortcuts-you-should-know/

interface AccountSelectParams {
  ...
}
const params = { ... };

const tmpParams: { [key in keyof AccountSelectParams]: any } | undefined = {};
  for (const key of Object.keys(params)) {
    const customKey = (key as keyof typeof params);
    if (key in params && params[customKey] && !this.state[customKey]) {
      tmpParams[customKey] = params[customKey];
    }
  }

please commented if you get the idea of this concept

I always like analogies when it comes to understand this type of stuff. 'Prototypical inheritance' is pretty confusing in comparison to class bass inheritance in my opinion, even though prototypes are much simpler paradigm. In fact with prototypes, there really is no inheritance, so the name in and of itself misleading, it's more a type of 'delegation'.

Imagine this ....

You're in high-school, and you're in class and have a quiz that's due today, but you don't have a pen to fill out your answers. Doh!

You're sitting next to your friend Finnius, who might have a pen. You ask, and he looks around his desk unsuccessfully, but instead of saying "I don't have a pen", he's a nice friend he checks with his other friend Derp if he has a pen. Derp does indeed have a spare pen and passes it back to Finnius, who passes it over to you to complete your quiz. Derp has entrusted the pen to Finnius, who has delegated the pen to you for use.

What is important here is that Derp does not give the pen to you, as you don't have a direct relationship with him.

This, is a simplified example of how prototypes work, where a tree of data is searched for the thing you're looking for.

Permissions you used when installing Node will be required when doing things like writing in your npm directory (npm link, npm install -g, etc.).

You probably ran node installation with root permissions, that's why the global package installation is asking you to be root.

Solution 1: NVM

Don't hack with permissions, install node the right way.

On a development machine, you should not install and run node with root permissions, otherwise things like npm link, npm install -g will need the same permissions.

NVM (Node Version Manager) allows you to install Node without root permissions and also allows you to install many versions of Node to play easily with them.. Perfect for development.

1. Uninstall Node (root permission will probably be required). This might help you.
2. Then install NVM following instructions on this page.
3. Install Node via NVM: nvm install node

Now npm link, npm install -g will no longer require you to be root.

Edit: See also https://docs.npmjs.com/getting-started/fixing-npm-permissions

Solution 2: Install with webi

webi fetches the official node package from the node release API. It does not require a package manager, does not require sudo or root access, and will not change any system permissions.

curl -s https://webinstall.dev/node | bash

Or, on Windows 10:

curl.exe -sA "MS" https://webinstall.dev/node | powershell

Like nvm, you can easily switch node versions:

webi node@v12

Unlike nvm (or Solution 3 below), the npm packages will be separate (you will need to re-install when you switch node versions).

Without changing npm configuration, you can install globally:

npm install -g prettier

This solution is essentially an automated version of other solutions that install to $HOME.

Solution 3: Install packages globally for a given user

Don't hack with permissions, install npm packages globally the right way.

If you are on OSX or Linux, you can create a user dedicated directory for your global package and setup npm and node to know how to find globally installed packages.

Check out this great article for step by step instructions on installing npm modules globally without sudo.

See also: npm's documentation on Fixing npm permissions.

sequenceName is the name of the sequence in the DB. This is how you specify a sequence that already exists in the DB. If you go this route, you have to specify the allocationSize which needs to be the same value that the DB sequence uses as its "auto increment".

Usage:

@GeneratedValue(generator="my_seq")
@SequenceGenerator(name="my_seq",sequenceName="MY_SEQ", allocationSize=1)

If you want, you can let it create a sequence for you. But to do this, you must use SchemaGeneration to have it created. To do this, use:

@GeneratedValue(strategy=GenerationType.SEQUENCE)

Also, you can use the auto-generation, which will use a table to generate the IDs. You must also use SchemaGeneration at some point when using this feature, so the generator table can be created. To do this, use:

@GeneratedValue(strategy=GenerationType.AUTO)

I was having the same problem in localhost with xampp. Now I'm using this combination of parameters:

// Report all errors except E_NOTICE
// This is the default value set in php.ini
error_reporting(E_ALL ^ E_NOTICE);

php.net: http://php.net/manual/pt_BR/function.error-reporting.php

A quick search for keywords background generator shows this CSS3 produced background pattern that's dynamically created.

By keeping the image small and repeatable, you won't have problems with it loading on mobile devices and the small image file-size takes care of memory concerns.

Here's the markup for the head section:

<style type="text/css">

    body {
      background-image:url('path/to/your/image/background.png');
      width: 100%;
      height: 100%;
    }

</style>

If your going to use an image of something that should preserve aspect ratio, such as people or objects, then you don't want 100% for width and height since that will stretch the image out of proportion. Instead check out this quick tutorial that shows different methods for applying background images using CSS.

There is another way to pass multiple ranges to a function, which I think feels much cleaner for the user. When you call your function in the spreadsheet you wrap each set of ranges in brackets, for example: calculateIt( (A1,A3), (B6,B9) )

The above call assumes your two Sessions are in A1 and A3, and your two Customers are in B6 and B9.

To make this work, your function needs to loop through each of the Areas in the input ranges. For example:

Function calculateIt(Sessions As Range, Customers As Range) As Single

    ' check we passed the same number of areas
    If (Sessions.Areas.Count <> Customers.Areas.Count) Then
        calculateIt = CVErr(xlErrNA)
        Exit Function
    End If

    Dim mySession, myCustomers As Range

    ' run through each area and calculate
    For a = 1 To Sessions.Areas.Count

        Set mySession = Sessions.Areas(a)
        Set myCustomers = Customers.Areas(a)

        ' calculate them...
    Next a

End Function

The nice thing is, if you have both your inputs as a contiguous range, you can call this function just as you would a normal one, e.g. calculateIt(A1:A3, B6:B9).

Hope that helps :)

2016 +: what I advise is to set your Mysql timezone to UTC and use DATETIME:

Any recent front-end framework (Angular 1/2, react, Vue,...) can easily and automatically convert your UTC datetime to local time.

Additionally:

• DATETIME can now be automatically set to the current time value How do you set a default value for a MySQL Datetime column?
• Contrary to what one might think, DATETIME is FASTER THAN TIMESTAMP, http://gpshumano.blogs.dri.pt/2009/07/06/mysql-datetime-vs-timestamp-vs-int-performance-and-benchmarking-with-myisam/
• TIMESTAMP is still limited to 1970-2038

(Unless you are likely to change the timezone of your servers)

Example with AngularJs

// back-end: format for angular within the sql query
SELECT DATE_FORMAT(my_datetime, "%Y-%m-%dT%TZ")...

// font-end Output the localised time
{{item.my_datetime | date :'medium' }}

All localised time format available here: https://docs.angularjs.org/api/ng/filter/date

I've modified andrewz' post to make it compatible with Swift 2.0 (and maybe Swift 3.0). In my humble opinion, this extension is easier to understand and similar to what is available in other languages (like PHP).

extension String {

    func length() -> Int {
        return self.lengthOfBytesUsingEncoding(NSUTF16StringEncoding)
    }
    func substring(from:Int = 0, to:Int = -1) -> String {
       var nto=to
        if nto < 0 {
            nto = self.length() + nto
        }
        return self.substringWithRange(Range<String.Index>(
           start:self.startIndex.advancedBy(from),
           end:self.startIndex.advancedBy(nto+1)))
    }
    func substring(from:Int = 0, length:Int) -> String {
        return self.substringWithRange(Range<String.Index>(
            start:self.startIndex.advancedBy(from),
            end:self.startIndex.advancedBy(from+length)))
    }
}

Using pendulum.period:

import pendulum

start = pendulum.from_format('2020-05-01', 'YYYY-MM-DD', formatter='alternative')
end = pendulum.from_format('2020-05-02', 'YYYY-MM-DD', formatter='alternative')

period = pendulum.period(start, end)

for dt in period:
    print(dt.to_date_string())

You can use the ggjoy package. Let's say that we have three different beta distributions such as:

set.seed(5)
b1<-data.frame(Variant= "Variant 1", Values = rbeta(1000, 101, 1001))
b2<-data.frame(Variant= "Variant 2", Values = rbeta(1000, 111, 1011))
b3<-data.frame(Variant= "Variant 3", Values = rbeta(1000, 11, 101))


df<-rbind(b1,b2,b3)

You can get the three different distributions as follows:

library(tidyverse)
library(ggjoy)


ggplot(df, aes(x=Values, y=Variant))+
    geom_joy(scale = 2, alpha=0.5) +
    scale_y_discrete(expand=c(0.01, 0)) +
    scale_x_continuous(expand=c(0.01, 0)) +
    theme_joy()

Your quotes only need to surround the value part of the attribute-equals selector, [attr='val'], like this:

$('a#check_var').click(function() {
  alert($("input:radio[name='r']:checked").val()+ ' '+
        $("input:radio[name='s']:checked").val());
});?

You can see the working version here.

I had the same issue I have resolved by adding a media query for @screen-xs-min in less version under Modals.less

@media (max-width: @screen-xs-min) {
  .modal-xs { width: @modal-sm; }
}

You can use multiselect function for this.

   CriteriaBuilder cb=session.getCriteriaBuilder();
            CriteriaQuery<Object[]> cquery=cb.createQuery(Object[].class);
            Root<Car> root=cquery.from(User.class);
            cquery.multiselect(root.get("id"),root.get("Name"));
            Query<Object[]> q=session.createQuery(cquery);
            List<Object[]> list=q.getResultList();
            System.out.println("id        Name");
            for (Object[] objects : list) {
                System.out.println(objects[0]+"        "+objects[1]);
             }
            

This is supported by hibernate 5. createCriteria is deprecated in further version of hibernate. So you can use criteria builder instead.

This behavior is related to Zone that is set - Internet/Intranet/etc and corresponding Security Level

You can change this by setting less secure Security Level (not recommended) or by customizing Display Mixed Content property

You can do that by following steps:

1. Click on Gear icon at the top of the browser window.
2. Select Internet Options.
3. Select the Security tab at the top.
4. Click the Custom Level... button.
5. Scroll about halfway down to the Miscellaneous heading (denoted by a "blank page" icon).
6. Under this heading is the option Display Mixed Content; set this to Enable/Prompt.
7. Click OK, then Yes when prompted to confirm the change, then OK to close the Options window.
8. Close and restart the browser.

Seeing as you only have 30 error codes, code up your own jump table, then you make all optimisation choices yourself (jump will always be quickest), rather than hope the compiler will do the right thing. It also makes the code very small (apart from the static declaration of the jump table). It also has the side benefit that with a debugger you can modify the behaviour at runtime should you so need, just by poking the table data directly.

Use Tuple in Converter, and in OnExecute, cast the parameter object back to Tuple.

public class YourConverter : IMultiValueConverter 
{      
    public object Convert(object[] values, ...)     
    {   
        Tuple<string, string> tuple = new Tuple<string, string>(
            (string)values[0], (string)values[1]);
        return (object)tuple;
    }      
} 

// ...

public void OnExecute(object parameter) 
{
    var param = (Tuple<string, string>) parameter;
}

Unique is a keyword used in the Create Table() directive to denote that a field will contain unique data, usually used for natural keys, foreign keys etc.

For example:

Create Table Employee(   
    Emp_PKey Int Identity(1, 1) Constraint PK_Employee_Emp_PKey Primary Key,  
    Emp_SSN Numeric Not Null Unique,  
    Emp_FName varchar(16),   
    Emp_LName varchar(16) 
)

i.e. Someone's Social Security Number would likely be a unique field in your table, but not necessarily the primary key.

Distinct is used in the Select statement to notify the query that you only want the unique items returned when a field holds data that may not be unique.

Select Distinct Emp_LName
From Employee

You may have many employees with the same last name, but you only want each different last name.

Obviously if the field you are querying holds unique data, then the Distinct keyword becomes superfluous.

Just do what cron does, run the following as root:

run-parts -v /etc/cron.weekly

... or the next one if you receive the "Not a directory: -v" error:

run-parts /etc/cron.weekly -v

Option -v prints the script names before they are run.

On .Net 4.7.2 to invoke a method inside a class loaded from an external assembly you can use the following code in VB.net

        Dim assembly As Reflection.Assembly = Nothing
        Try
            assembly = Reflection.Assembly.LoadFile(basePath & AssemblyFileName)
            Dim typeIni = assembly.[GetType](AssemblyNameSpace & "." & "nameOfClass")
            Dim iniClass = Activator.CreateInstance(typeIni, True)
            Dim methodInfo = typeIni.GetMethod("nameOfMethod")

            'replace nothing by a parameter array if you need to pass var. paramenters
            Dim parametersArray As Object() = New Object() {...}
            'without parameters is like this
            Dim result = methodInfo.Invoke(iniClass, Nothing)
        Catch ex As Exception
            MsgBox("Error initializing main layout:" & ex.Message)
            Application.Exit()
            Exit Sub
        End Try

Give your body tag an overflow: scroll;

body {
    overflow: scroll;
}

or if you only want a vertical scrollbar use overflow-y

body {
    overflow-y: scroll;
}

any():

if any(t < 0 for t in x):
    # do something

Also, if you're going to use "True in ...", make it a generator expression so it doesn't take O(n) memory:

if True in (t < 0 for t in x):

Binding is the process of mapping a name to a unit of code.

Late binding means that we use the name, but defer the mapping. In other words, we create/mention the name first, and let some subsequent process handle the mapping of code to that name.

Now consider:

• Compared to humans, machines are really good at searching and sorting
• Compared to machines, humans are really good at invention and innovation

So, the short answer is: virtual is a late binding instruction for the machine (runtime) whereas abstract is the late binding instruction for the human (programmer)

In other words, virtual means:

“Dear runtime, bind the appropriate code to this name by doing what you do best: searching”

Whereas abstract means:

“Dear programmer, please bind the appropriate code to this name by doing what you do best: inventing”

For the sake of completeness, overloading means:

“Dear compiler, bind the appropriate code to this name by doing what you do best: sorting”.

Joey mentioned that Format-* is for human consumption. If you're writing to a file for machine consumption, maybe you want to use Export-*? Some good ones are

• Export-Csv - Comma separated value. Great for when you know what the columns are going to be
• Export-Clixml - You can export whole objects and collections. This is great for serialization.

If you want to read back in, you can use Import-Csv and Import-Clixml. I find that I like this better than inventing my own data formats (also it's pretty easy to whip up an Import-Ini if that's your preference).

See this two links:

deny Element for authorization (ASP.NET Settings Schema) http://msdn.microsoft.com/en-us/library/vstudio/8aeskccd%28v=vs.100%29.aspx

allow Element for authorization (ASP.NET Settings Schema): http://msdn.microsoft.com/en-us/library/vstudio/acsd09b0%28v=vs.100%29.aspx

indexPathForRow is a class method!

The code should read:

NSIndexPath *myIP = [NSIndexPath indexPathForRow:0 inSection:0] ;

Remove this:

credentials: 'include',

Those 'u' characters being appended to an object signifies that the object is encoded in "unicode".

If you want to remove those 'u' chars from your object you can do this:

import json, ast
jdata = ast.literal_eval(json.dumps(jdata)) # Removing uni-code chars

Let's checkout from python shell

>>> import json, ast
>>> jdata = [{u'i': u'imap.gmail.com', u'p': u'aaaa'}, {u'i': u'333imap.com', u'p': u'bbbb'}]
>>> jdata = ast.literal_eval(json.dumps(jdata))
>>> jdata
[{'i': 'imap.gmail.com', 'p': 'aaaa'}, {'i': '333imap.com', 'p': 'bbbb'}]

From the fine manual:

ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;

There's no need to specify the type when you're just changing the nullability.

There are 3 ways to pass data from Parent to Children

1. Through shareable service : you should store into a service the data you would like to share with the children

2. Through Children Router Resolver if you have to receive different data

   this.data = this.route.snaphsot.data['dataFromResolver'];
   

3. Through Parent Router Resolver if your have to receive the same data from parent

   this.data = this.route.parent.snaphsot.data['dataFromResolver'];
   

Note1: You can read about resolver here. There is also an example of resolver and how to register the resolver into the module and then retrieve data from resolver into the component. The resolver registration is the same on the parent and child.

Note2: You can read about ActivatedRoute here to be able to get data from router

Sessions are server-side files that contain user information, while Cookies are client-side files that contain user information. Sessions have a unique identifier that maps them to specific users. This identifier can be passed in the URL or saved into a session cookie.

Most modern sites use the second approach, saving the identifier in a Cookie instead of passing it in a URL (which poses a security risk). You are probably using this approach without knowing it, and by deleting the cookies you effectively erase their matching sessions as you remove the unique session identifier contained in the cookies.

Just make sure that the folder is NOT Read-Only and rebuild the solution

<html>
    <head>
        <title>Page</title>
    </head>
    <body>
       <a href="./">Folder directory</a> 
    </body>
</html>

What about this one:

final BooleanWrapper condition = new BooleanWrapper();
someObjects.forEach(obj -> {
   if (condition.ok()) {
     // YOUR CODE to control
     condition.stop();
   }
});

Where BooleanWrapper is a class you must implement to control the flow.

userCookie.Expires.AddDays(365); 

This line of code doesn't do anything. It is the equivalent of:

DateTime temp = userCookie.Expires.AddDays(365); 
//do nothing with temp

You probably want

userCookie.Expires = DateTime.Now.AddDays(365); 

The better pattern is to create a standalone BroadcastReceiver. This insures that your app can respond to the broadcast, whether or not the Service is running. In fact, using this pattern may remove the need for a constant-running Service altogether.

Register the BroadcastReceiver in your Manifest, and create a separate class/file for it.

Eg:

<receiver android:name=".FooReceiver" >
    <intent-filter >
        <action android:name="android.provider.Telephony.SMS_RECEIVED" />
    </intent-filter>
</receiver>

When the receiver runs, you simply pass an Intent (Bundle) to the Service, and respond to it in onStartCommand().

Eg:

public class FooReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        // do your work quickly!
        // then call context.startService();
    }   
}

Blast from the past but I think I found an easy answer to this. The following worked for me. I think it's the equivalent of selecting the cell hitting F2 and then hitting enter, which makes Excel recognize the text as a date.

Columns("A").Select
Selection.Value = Selection.Value

The following command will list all users belonging to <your_group_name>, but only those managed by /etc/group database, not LDAP, NIS, etc. It also works for secondary groups only, it won't list users who have that group set as primary since the primary group is stored as GID (numeric group ID) in the file /etc/passwd.

grep <your_group_name> /etc/group

Is using MS SQL Server you can do the following:

--List all tables primary keys
select * from information_schema.table_constraints
where constraint_type = 'Primary Key'

You can also filter on the table_name column if you want a specific table.

SELECT COLUMN_NAME, TABLE_NAME,table_schema
FROM INFORMATION_SCHEMA.COLUMNS;

When you say "doc.open()" it means you can write whatever HTML tag inside the iframe, so you should write all the basic tags for the HTML page and if you want to have a CSS link in your iframe head just write an iframe with CSS link in it. I give you an example:

doc.open();

doc.write('<!DOCTYPE html><html><head><meta charset="utf-8"/><meta http-quiv="Content-Type" content="text/html; charset=utf-8"/><title>Print Frame</title><link rel="stylesheet" type="text/css" href="/css/print.css"/></head><body><table id="' + gridId + 'Printable' + '" class="print" >' + out + '</table></body></html>');

doc.close();

What exactly are you doing in //do stuff?

You may be able to do something like:

(scrollLeft < 1000) ? //do stuff
: (scrollLeft > 1000 && scrollLeft < 2000) ? //do stuff
: (scrollLeft > 2000) ? //do stuff
: //etc. 

Storage

Given numbers are only for storing 1 character

• ASCII ? 2⁷ bits (1 byte)
• Extended ASCII ? 2⁸ bits (1 byte)
• UTF-8 ? minimum 2⁸, maximum 2³² bits (min 1, max 4 bytes)
• UTF-16 ? minimum 2¹⁶, maximum 2³² bits (min 2, max 4 bytes)
• UTF-32 ? 2³² bits (4 bytes)

Usage (as of Feb 2020)

On macOS Sierra (10.12) :

1. Run the following command to see if CLT is installed:

   xcode-select -p
   

   this will return the path to the tool if CLT is already installed. Something like this -

   /Applications/Xcode.app/Contents/Developer
   

2. Run the following command to see the version of CLT:

   pkgutil --pkg-info=com.apple.pkg.CLTools_Executables
   

   this will return version info, output will be something like this -

   package-id: com.apple.pkg.CLTools_Executables
   version: 8.2.0.0.1.1480973914
   volume: /
   location: /
   install-time: 1486372375
   

SELECT id FROM tablename ORDER BY id DESC LIMIT 2 , 1

This is only for get 3rd highest value .

Try Like This: For SQL SERVER 2008+

SELECT c.name AS ColName, t.name AS TableName
FROM sys.columns c
    JOIN sys.tables t ON c.object_id = t.object_id
WHERE c.name LIKE '%MyColumnaName%'

Or

SELECT COLUMN_NAME, TABLE_NAME 
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE COLUMN_NAME LIKE '%MyName%'

Or Something Like This:

SELECT name  
FROM sys.tables 
WHERE OBJECT_ID IN ( SELECT id 
              FROM syscolumns 
              WHERE name like '%COlName%' )

str1.size() == str2.size() && std::equal(str1.begin(), str1.end(), str2.begin(), [](auto a, auto b){return std::tolower(a)==std::tolower(b);})

You can use the above code in C++14 if you are not in a position to use boost. You have to use std::towlower for wide chars.

This should do it:

[^a-zA-Z\d\s:]

When i tried the solution with /XD i found, that the path to exclude should be the source path - not the destination.

e.g. this Works

robocopy c:\test\a c:\test\b /MIR /XD c:\test\a\leavethisdiralone\

Try using a div instead of the span or using the CSS display: block; or display: inline-block;—span is by default an inline element which cannot take width and height properties.

There is a difference between initialization and assignment. What you want to do is not initialization, but assignment. But such assignment to array is not possible in C++.

Here is what you can do:

#include <algorithm>

int array [] = {1,3,34,5,6};
int newarr [] = {34,2,4,5,6};
std::copy(newarr, newarr + 5, array);

However, in C++0x, you can do this:

std::vector<int> array = {1,3,34,5,6};
array = {34,2,4,5,6};

Of course, if you choose to use std::vector instead of raw array.

use ${fn:length(companies) > 0} to check the size. This returns a boolean

CPU and memory usage of a single process on Linux or you can get the top 10 cpu utilized processes by using below command

ps -aux --sort -pcpu | head -n 11

In addition to the above answers, as part of configuring your firewall, if you are using SSH then use port 22.

You can load the images at the beginning and change the css attributes to show every image.

var images = array();
for( url in your_urls_array ){
   var img = document.createElement( "img" );
   //here the image attributes ( width, height, position, etc )
   images.push( img );
}

function player( position )
{
  images[position-1].style.display = "none" //be careful working with the first position
  images[position].style.display = "block";
  //reset position if needed
  timer = setTimeOut( "player( position )", time );
}

jQuery.html takes string or callback as input, not sure how your example is working... Try something like $('<tr>').append($('<td>' + item.rank + '</td>').append ... And you have some definite problems with tags fromation. It should be $('<tr/>') and $('<td/>')

It is always better to close the database/resource objects after usage. Better close the connection, resultset and statement objects in the finally block.

Until Java 7, all these resources need to be closed using a finally block. If you are using Java 7, then for closing the resources, you can do as follows.

try(Connection con = getConnection(url, username, password, "org.postgresql.Driver");
    Statement stmt = con.createStatement();
    ResultSet rs = stmt.executeQuery(sql);
) {

    // Statements
}
catch(....){}

Now, the con, stmt and rs objects become part of try block and Java automatically closes these resources after use.

Not sure its faster with VBA - the fastest way to do it in the normal Excel programm would be:

1. Ctrl-G
2. A1:X50 Enter
3. Delete

Unless you have to do this very often, entering and then triggering the VBAcode is more effort.

And in case you only want to delete formulas or values, you can insert Ctrl-G, Alt-S to select Goto Special and here select Formulas or Values.

Navigate to settings and locate the base.py file Set the allowed hosts to ALLOWED_HOSTS = ['*']

$('element').removeClass('class1 class2');

Here are the docs.

The correct value for the content attribute should include initial-scale instead:

<meta name="viewport" content="width=device-width, initial-scale=1">_x000D_
                                                   ^^^^^^^^^^^^^^^