Programs & Examples On #Historian

Historian (or an Operational Historian) refers to a database software application that logs or historizes time-based process data.

Cannot Resolve Collation Conflict

The thing about collations is that although the database has its own collation, every table, and every column can have its own collation. If not specified it takes the default of its parent object, but can be different.

When you change collation of the database, it will be the new default for all new tables and columns, but it doesn't change the collation of existing objects inside the database. You have to go and change manually the collation of every table and column.

Luckily there are scripts available on the internet that can do the job. I am not going to recommend any as I haven't tried them but here are few links:

http://www.codeproject.com/Articles/302405/The-Easy-way-of-changing-Collation-of-all-Database

Update Collation of all fields in database on the fly

http://www.sqlservercentral.com/Forums/Topic820675-146-1.aspx

If you need to have different collation on two objects or can't change collations - you can still JOIN between them using COLLATE command, and choosing the collation you want for join.

SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE Latin1_General_CI_AS 

or using default database collation:

SELECT * FROM A JOIN B ON A.Text = B.Text COLLATE DATABASE_DEFAULT

How is "mvn clean install" different from "mvn install"?

You can call more than one target goal with maven. mvn clean install calls clean first, then install. You have to clean manually, because clean is not a standard target goal and not executed automatically on every install.

clean removes the target folder - it deletes all class files, the java docs, the jars, reports and so on. If you don't clean, then maven will only "do what has to be done", like it won't compile classes when the corresponding source files haven't changed (in brief).

we call it target in ant and goal in maven

How do I download a tarball from GitHub using cURL?

You can also use wget to »untar it inline«. Simply specify stdout as the output file (-O -):

wget --no-check-certificate https://github.com/pinard/Pymacs/tarball/v0.24-beta2 -O - | tar xz

How to get the MD5 hash of a file in C++?

I needed to do this just now and required a cross-platform solution that was suitable for c++11, boost and openssl. I took D'Nabre's solution as a starting point and boiled it down to the following:

#include <openssl/md5.h>
#include <iomanip>
#include <sstream>
#include <boost/iostreams/device/mapped_file.hpp>

const std::string md5_from_file(const std::string& path)
{
    unsigned char result[MD5_DIGEST_LENGTH];
    boost::iostreams::mapped_file_source src(path);
    MD5((unsigned char*)src.data(), src.size(), result);

    std::ostringstream sout;
    sout<<std::hex<<std::setfill('0');
    for(auto c: result) sout<<std::setw(2)<<(int)c;

    return sout.str();
}

A quick test executable demonstrates:

#include <iostream>

int main(int argc, char *argv[]) {
    if(argc != 2) {
        std::cerr<<"Must specify the file\n";
        exit(-1);
    }
    std::cout<<md5_from_file(argv[1])<<"  "<<argv[1]<<std::endl;
    return 0;
}

Some linking notes: Linux: -lcrypto -lboost_iostreams Windows: -DBOOST_ALL_DYN_LINK libeay32.lib ssleay32.lib

AlertDialog styling - how to change style (color) of title, message, etc

Remove the panel background

 <item name="android:windowBackground">@color/transparent_color</item> 
 <color name="transparent_color">#00000000</color>

This is Mystyle:

 <style name="ThemeDialogCustom">
    <item name="android:windowFrame">@null</item>
    <item name="android:windowIsFloating">true</item>
    <item name="android:windowContentOverlay">@null</item>
    <item name="android:windowAnimationStyle">@android:style/Animation.Dialog</item>
    <item name="android:windowBackground">@color/transparent_color</item>
    <item name="android:windowSoftInputMode">stateUnspecified|adjustPan</item>
    <item name="android:colorBackgroundCacheHint">@null</item>
</style>

Which i have added to the constructor.

Add textColor :

<item name="android:textColor">#ff0000</item>

Add and remove a class on click using jQuery?

The other li elements are not siblings of the a element.

$('#menu li a').on('click', function(){
    $(this).addClass('current').parent().siblings().children().removeClass('current');
}); 

JQuery Redirect to URL after specified time

This is improved @Vicky solution - it has clearInterval() added so it prevents a loop of reloading if the redirect takes too long:

                            $(document).ready(function () {
                                var myTimer = window.setInterval(function () {
                                    var timeLeft = $("#countdown").html();
                                    if (eval(timeLeft) == 0) {
                                        console.log('Now redirecting');
                                        clearInterval(myTimer);
                                        window.location = ("@Html.Raw(HttpUtility.HtmlDecode(redirectUrl))");
                                    } else {
                                        $("#countdown").html(eval(timeLeft) - eval(1));
                                    }
                                }, 1000);
                            });

Display image at 50% of its "native" size

It's somewhat weird, but it seems that Webkit, at least in newest stable version of Chrome, supports Microsoft's zoom property. The good news is that its behaviour is closer to what you want.

Unfortunately DOM clientWidth and similar properties still return the original values as if the image was not resized.

_x000D_
_x000D_
// hack: wait a moment for img to load_x000D_
setTimeout(function() {_x000D_
   var img = document.getElementsByTagName("img")[0];_x000D_
   document.getElementById("c").innerHTML = "clientWidth, clientHeight = " + img.clientWidth + ", " +_x000D_
      img.clientHeight;_x000D_
}, 1000);
_x000D_
img {_x000D_
  zoom: 50%;_x000D_
}_x000D_
/* -- not important below -- */_x000D_
#t {_x000D_
  width: 400px;_x000D_
  height: 300px;_x000D_
  background-color: #F88;_x000D_
}_x000D_
#s {_x000D_
  width: 200px;_x000D_
  height: 150px;_x000D_
  background-color: #8F8;_x000D_
}
_x000D_
<img src="data:image/png;base64,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" />_x000D_
<div id="s">div with explicit size for comparison 200px by 150px</div>_x000D_
<div id="t">div with explicit size for comparison 400px by 300px</div>_x000D_
<div id="c"></div>
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Unable to preventDefault inside passive event listener

To still be able to scroll this worked for me

if (e.changedTouches.length > 1) e.preventDefault();

how to install tensorflow on anaconda python 3.6

Please refer this link :

  • Go to https://www.anaconda.com/products/individual and click the “Download” -button
  • Download the Python 3.7 64-Bit (x86) Installer
  • Run the downloaded bash script (.sh) file to begin the installation. See here for more details.
  • -When prompted with the question “Do you wish the installer to prepend the Anaconda<2 or 3> install location to PATH in your /home//.bashrc ?”, answer “Yes”. If you enter “No”, you must manually add the path to Anaconda or conda will not work.

Select Windows or linked base command, In my case I have used Linux :

Create a new Anaconda virtual environment Open a new Terminal window

Type the following command: The above will create a new virtual environment with name tensorflow

conda create -n tensorflow pip python=3.8

 conda activate tensorflow

enter image description here

enter image description here

this in equals method

You have to look how this is called:

someObject.equals(someOtherObj); 

This invokes the equals method on the instance of someObject. Now, inside that method:

public boolean equals(Object obj) {   if (obj == this) { //is someObject equal to obj, which in this case is someOtherObj?     return true;//If so, these are the same objects, and return true   } 

You can see that this is referring to the instance of the object that equals is called on. Note that equals() is non-static, and so must be called only on objects that have been instantiated.

Note that == is only checking to see if there is referential equality; that is, the reference of this and obj are pointing to the same place in memory. Such references are naturally equal:

Object a = new Object(); Object b = a; //sets the reference to b to point to the same place as a Object c = a; //same with c b.equals(c);//true, because everything is pointing to the same place 

Further note that equals() is generally used to also determine value equality. Thus, even if the object references are pointing to different places, it will check the internals to determine if those objects are the same:

FancyNumber a = new FancyNumber(2);//Internally, I set a field to 2 FancyNumber b = new FancyNumber(2);//Internally, I set a field to 2 a.equals(b);//true, because we define two FancyNumber objects to be equal if their internal field is set to the same thing. 

msvcr110.dll is missing from computer error while installing PHP

You need to install the Visual C++ libraries: http://www.microsoft.com/en-us/download/details.aspx?id=30679

As mentioned by Stuart McLaughlin, make sure you get the x86 version even if you use a 64-bits OS because PHP needs some 32-bit libraries.

How do I put an image into my picturebox using ImageLocation?

if you provide a bad path or a broken link, if the compiler cannot find the image, the picture box would display an X icon on its body.

PictureBox picture = new PictureBox
        {
            Name = "pictureBox",
            Size = new Size(100, 50),
            Location = new Point(14, 17),
            Image = Image.FromFile(@"c:\Images\test.jpg"),
            SizeMode = PictureBoxSizeMode.CenterImage
        };
p.Controls.Add(picture);

OR

PictureBox picture = new PictureBox
        {
            Name = "pictureBox",
            Size = new Size(100, 50),
            Location = new Point(14, 17),
            ImageLocation = @"c:\Images\test.jpg",
            SizeMode = PictureBoxSizeMode.CenterImage
        };
p.Controls.Add(picture);

i'm not sure where you put images in your folder structure but you can find the path as bellow

 picture.ImageLocation = Path.Combine(System.Windows.Forms.Application.StartupPath, "Resources\Images\1.jpg");

How do you remove all the options of a select box and then add one option and select it with jQuery?

$('#mySelect')
    .empty()
    .append('<option selected="selected" value="whatever">text</option>')
;

How do I get and set Environment variables in C#?

I ran into this while working on a .NET console app to read the PATH environment variable, and found that using System.Environment.GetEnvironmentVariable will expand the environment variables automatically.

I didn't want that to happen...that means folders in the path such as '%SystemRoot%\system32' were being re-written as 'C:\Windows\system32'. To get the un-expanded path, I had to use this:

string keyName = @"SYSTEM\CurrentControlSet\Control\Session Manager\Environment\";
string existingPathFolderVariable = (string)Registry.LocalMachine.OpenSubKey(keyName).GetValue("PATH", "", RegistryValueOptions.DoNotExpandEnvironmentNames);

Worked like a charm for me.

How to display a list of images in a ListView in Android?

I came up with a solution that I call “BatchImageDownloader” that has served well. Here’s a quick summary of how it is used:

  • Keep a global HashMap (ideally in your Application object) that serves as a cache of drawable objects

  • In the getView() method of your List Adapter, use the drawable from the cache for populating the ImageView in your list item.

  • Create an instance of BatchImageDownloader, passing in your ListView Adapter

  • Call addUrl() for each image that needs to be fetched/displayed

  • When done, call execute(). This fires an AsyncTask that fetches all images, and as each image is fetched and added to the cache, it refreshes your ListView (by calling notifyDataSetChanged())

The approach has the following advantages:

  • A single worker thread is used to fetch all images, rather than a separate thread for each image/view
  • Once an image is fetched, all list items that use it are instantly updated
  • The code does not access the Image View in your List Item directly – instead it triggers a listview refresh by calling notifyDataSetChanged() on your List Adapter, and the getView() implementation simply pulls the drawable from the cache and displays it. This avoids the problems associated with recycled View objects used in ListViews.

Here is the source code of BatchImageDownloader:

package com.mobrite.androidutils;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.widget.BaseAdapter;

public class BatchImageDownloader extends AsyncTask<Void, Void, Void> {

    List<String> imgUrls = new ArrayList<String>();
    BaseAdapter adapter;
    HashMap<String, Drawable> imageCache;

    public BatchImageDownloader(BaseAdapter adapter,
            HashMap<String, Drawable> imageCache) {
        this.adapter = adapter;
        this.imageCache = imageCache;
    }

    public void addUrl(String url) {
        imgUrls.add(url);
    }

    @Override
    protected Void doInBackground(Void... params) {
        for (String url : imgUrls) {
            if (!imageCache.containsKey(url)) {
                Drawable bm = downloadImage(url);
                if (null != bm) {
                    imageCache.put(url, bm);
                    publishProgress();
                }
            }
        }
        return null;
    }

    @Override
    protected void onProgressUpdate(Void... values) {
        adapter.notifyDataSetChanged();
    }

    @Override
    protected void onPostExecute(Void result) {
        adapter.notifyDataSetChanged();
    }

    public Drawable downloadImage(String url) {

        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpGet request = new HttpGet(url);
        try {
            HttpResponse response = httpClient.execute(request);
            InputStream stream = response.getEntity().getContent();
            Drawable drawable = Drawable.createFromStream(stream, "src");
            return drawable;
        } catch (ClientProtocolException e) {
            e.printStackTrace();
            return null;
        } catch (IllegalStateException e) {
            e.printStackTrace();
            return null;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }

    }

}

How to check a Long for null in java

You can check Long object for null value with longValue == null , you can use longValue == 0L for long (primitive), because default value of long is 0L, but it's result will be true if longValue is zero too

Escaping quotation marks in PHP

Use htmlspecialchars(). Then quote and less / greater than symbols don't break your HTML tags~

Change values of select box of "show 10 entries" of jquery datatable

$(document).ready(function() {
    $('#example').dataTable( {
    "aLengthMenu": [[25, 50, 75, -1], [25, 50, 75, "All"]],
    "pageLength": 25
    } );
} );

aLengthMenu : This parameter allows you to readily specify the entries in the length drop down menu that DataTables shows when pagination is enabled. It can be either a 1D array of options which will be used for both the displayed option and the value, or a 2D array which will use the array in the first position as the value, and the array in the second position as the displayed options (useful for language strings such as 'All').

Update

Since DataTables v1.10, the options you are looking for are pageLength and lengthMenu

How can you profile a Python script?

cProfile is great for profiling, while kcachegrind is great for visualizing the results. The pyprof2calltree in between handles the file conversion.

python -m cProfile -o script.profile script.py
pyprof2calltree -i script.profile -o script.calltree
kcachegrind script.calltree

Required system packages:

  • kcachegrind (Linux), qcachegrind (MacOs)

Setup on Ubuntu:

apt-get install kcachegrind 
pip install pyprof2calltree

The result:

Screenshot of the result

Converting an OpenCV Image to Black and White

Here's a two line code I found online that might be helpful for a beginner

# Absolute value of the 32/64
abs_image_in32_64 = np.absolute(image_in32_64)

image_8U = np.uint8(abs_image_in32_64)

TypeScript - Append HTML to container element in Angular 2

When working with Angular the recent update to Angular 8 introduced that a static property inside @ViewChild() is required as stated here and here. Then your code would require this small change:

@ViewChild('one') d1:ElementRef;

into

// query results available in ngOnInit
@ViewChild('one', {static: true}) foo: ElementRef;

OR

// query results available in ngAfterViewInit
@ViewChild('one', {static: false}) foo: ElementRef;

PHP Undefined Index

if you use isset like the answer posted already by singles, just make sure there is a bracket at the end like so:
$query_age = (isset($_GET['query_age']) ? $_GET['query_age'] : null);

Is quitting an application frowned upon?

I'd just like to add a correction here for the future readers of this thread. This particular nuance has escaped my understanding for a long time so I want to make sure none of you make the same mistakes:

System.exit() does not kill your app if you have more than one activity on the stack. What actually happens is that the process is killed and immediately restarted with one fewer activity on the stack. This is also what happens when your app is killed by the Force Close dialog, or even when you try to kill the process from DDMS. This is a fact that is entirely undocumented, to my knowledge.

The short answer is, if you want to exit your application, you've got to keep track of all activities in your stack and finish() ALL of them when the user wants to exit (and no, there is no way to iterate through the Activity stack, so you have to manage all of this yourself). Even this does not actually kill the process or any dangling references you may have. It simply finishes the activities. Also, I'm not sure whether Process.killProcess(Process.myPid()) works any better; I haven't tested it.

If, on the other hand, it is okay for you to have activities remaining in your stack, there is another method which makes things super easy for you: Activity.moveTaskToBack(true) will simply background your process and show the home screen.

The long answer involves explanation of the philosophy behind this behavior. The philosophy is born out of a number of assumptions:

  1. First of all, this only happens when your app is in the foreground. If it is in the background the process will terminate just fine. However, if it is in the foreground, the OS assumes that the user wants to keep doing whatever he/she was doing. (If you are trying to kill the process from DDMS, you should hit the home button first, and then kill it)
  2. It also assumes that each activity is independent of all the other activities. This is often true, for example in the case that your app launches the Browser Activity, which is entirely separate and was not written by you. The Browser Activity may or may not be created on the same Task, depending on its manifest attributes.
  3. It assumes that each of your activities is completely self-reliant and can be killed/restored in a moment's notice. (I rather dislike this particular assumption, since my app has many activities which rely on a large amount of cached data, too large to be efficiently serialized during onSaveInstanceState, but whaddya gonna do?) For most well-written Android apps this should be true, since you never know when your app is going to be killed off in the background.
  4. The final factor is not so much an assumption, but rather a limitation of the OS: killing the app explicitly is the same as the app crashing, and also the same as Android killing the app to reclaim memory. This culminates in our coup de grace: since Android can't tell if the app exited or crashed or was killed in the background, it assumes the user wants to return where they left off, and so the ActivityManager restarts the process.

When you think about it, this is appropriate for the platform. First, this is exactly what happens when the process is killed in the background and the user comes back to it, so it needs to be restarted where it left off. Second, this is what happens when the app crashes and presents the dreaded Force Close dialog.

Say I want my users to be able to take a picture and upload it. I launch the Camera Activity from my activity, and ask it to return an image. The Camera is pushed onto the top of my current Task (rather than being created in its own Task). If the Camera has an error and it crashes, should that result in the whole app crashing? From the standpoint of the user, only the Camera failed, and they should be returned to their previous activity. So it just restarts the process with all the same Activities in the stack, minus the Camera. Since your Activities should be designed so that they can be killed and restored at the drop of a hat, this shouldn't be a problem. Unfortunately, not all apps can be designed that way, so it is a problem for many of us, no matter what Romain Guy or anyone else tells you. So, we need to use workarounds.

So, my closing advice:

  • Don't try to kill the process. Either call finish() on all activities or call moveTaskToBack(true).
  • If your process crashes or gets killed, and if, like me, you need the data that was in memory which is now lost, you'll need to return to the root activity. To do this, you should call startActivity() with an Intent that contains the Intent.FLAG_ACTIVITY_CLEAR_TOP flag.
  • If you want to kill your app from the Eclipse DDMS perspective, it had better not be in the foreground, or it will restart itself. You should press the Home button first, and then kill the process.

How to format a java.sql.Timestamp(yyyy-MM-dd HH:mm:ss.S) to a date(yyyy-MM-dd HH:mm:ss)

You do not need to use substring at all since your format doesn't hold that info.

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String fechaStr = "2013-10-10 10:49:29.10000";  
Date fechaNueva = format.parse(fechaStr);

System.out.println(format.format(fechaNueva)); // Prints 2013-10-10 10:49:29

How to parse SOAP XML?

$xml = '<?xml version="1.0" encoding="utf-8"?>
                <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
                  <soap:Body>
                    <PaymentNotification xmlns="http://apilistener.envoyservices.com">
                      <payment>
                        <uniqueReference>ESDEUR11039872</uniqueReference>
                        <epacsReference>74348dc0-cbf0-df11-b725-001ec9e61285</epacsReference>
                        <postingDate>2010-11-15T15:19:45</postingDate>
                        <bankCurrency>EUR</bankCurrency>
                        <bankAmount>1.00</bankAmount>
                        <appliedCurrency>EUR</appliedCurrency>
                        <appliedAmount>1.00</appliedAmount>
                        <countryCode>ES</countryCode>
                        <bankInformation>Sean Wood</bankInformation>
                  <merchantReference>ESDEUR11039872</merchantReference>
                   </payment>
                    </PaymentNotification>
                  </soap:Body>
                </soap:Envelope>';
        $doc = new DOMDocument();
        $doc->loadXML($xml);
        echo $doc->getElementsByTagName('postingDate')->item(0)->nodeValue;
        die;

Result is:

2010-11-15T15:19:45

'invalid value encountered in double_scalars' warning, possibly numpy

Whenever you are working with csv imports, try to use df.dropna() to avoid all such warnings or errors.

How to assign pointer address manually in C programming language?

let's say you want a pointer to point at the address 0x28ff4402, the usual way is

uint32_t *ptr;
ptr = (uint32_t*) 0x28ff4402 //type-casting the address value to uint32_t pointer
*ptr |= (1<<13) | (1<<10); //access the address how ever you want

So the short way is to use a MACRO,

#define ptr *(uint32_t *) (0x28ff4402)

docker-compose up for only certain containers

You can start containers by using:

$ docker-compose up -d client

This will run containers in the background and output will be avaiable from

$ docker-compose logs

and it will consist of all your started containers

Google OAUTH: The redirect URI in the request did not match a registered redirect URI

I was able to get mine working using the following Client Credentials:

Authorized JavaScript origins

http://localhost

Authorized redirect URIs

http://localhost:8090/oauth2callback

Note: I used port 8090 instead of 8080, but that doesn't matter as long as your python script uses the same port as your client_secret.json file.

Reference: Python Quickstart

How to trigger an event after using event.preventDefault()

A more recent version of the accepted answer.

Brief version:

$('#form').on('submit', function(e, options) {
    options = options || {};

    if ( !options.lots_of_stuff_done ) {
        e.preventDefault();
        $.ajax({
            /* do lots of stuff */
        }).then(function() {
            // retrigger the submit event with lots_of_stuff_done set to true
            $(e.currentTarget).trigger('submit', { 'lots_of_stuff_done': true });
        });
    } else {
        /* allow default behavior to happen */
    }

});



A good use case for something like this is where you may have some legacy form code that works, but you've been asked to enhance the form by adding something like email address validation before submitting the form. Instead of digging through the back-end form post code, you could write an API and then update your front-end code to hit that API first before allowing the form to do it's traditional POST.

To do that, you can implement code similar to what I've written here:

$('#signup_form').on('submit', function(e, options) {
    options = options || {};

    if ( !options.email_check_complete ) {

        e.preventDefault(); // Prevent form from submitting.
        $.ajax({
            url: '/api/check_email'
            type: 'get',
            contentType: 'application/json',
            data: { 
                'email_address': $('email').val() 
            }
        })
        .then(function() {
            // e.type === 'submit', if you want this to be more dynamic
            $(e.currentTarget).trigger(e.type, { 'email_check_complete': true });
        })
        .fail(function() {
            alert('Email address is not valid. Please fix and try again.');
        })

    } else {

        /**
             Do traditional <form> post.
             This code will be hit on the second pass through this handler because
             the 'email_check_complete' option was passed in with the event.
         */

        $('#notifications').html('Saving your personal settings...').fadeIn();

    }

});

How to show validation message below each textbox using jquery?

This is the simple solution may work for you.

Check this solution

$('form').on('submit', function (e) {
e.preventDefault();
var emailBox=$("#email");
var passBox=$("#password");
if (!emailBox.val() || !passBox.val()) {
    $(".validationText").text("Please Enter Value").show();
}
else if(!IsEmail(emailBox.val()))
{
    emailBox.prev().text("Invalid E-mail").show();
}
$("input#email, input#password").focus(function(){
    $(this).prev(".validationText").hide();
});});

No Application Encryption Key Has Been Specified

I actually had to add a .env file to my project and then copy the contents of .env.example so that the key:generate would work. Not sure why a .env file was not created when I started the project.

iOS8 Beta Ad-Hoc App Download (itms-services)

If you have already installed app on your device, try to change bundle identifer on the web .plist (not app plist) with something else like "com.vistair.docunet-test2", after that refresh webpage and try to reinstall... It works for me

What is the difference between 'SAME' and 'VALID' padding in tf.nn.max_pool of tensorflow?

I'll give an example to make it clearer:

  • x: input image of shape [2, 3], 1 channel
  • valid_pad: max pool with 2x2 kernel, stride 2 and VALID padding.
  • same_pad: max pool with 2x2 kernel, stride 2 and SAME padding (this is the classic way to go)

The output shapes are:

  • valid_pad: here, no padding so the output shape is [1, 1]
  • same_pad: here, we pad the image to the shape [2, 4] (with -inf and then apply max pool), so the output shape is [1, 2]

x = tf.constant([[1., 2., 3.],
                 [4., 5., 6.]])

x = tf.reshape(x, [1, 2, 3, 1])  # give a shape accepted by tf.nn.max_pool

valid_pad = tf.nn.max_pool(x, [1, 2, 2, 1], [1, 2, 2, 1], padding='VALID')
same_pad = tf.nn.max_pool(x, [1, 2, 2, 1], [1, 2, 2, 1], padding='SAME')

valid_pad.get_shape() == [1, 1, 1, 1]  # valid_pad is [5.]
same_pad.get_shape() == [1, 1, 2, 1]   # same_pad is  [5., 6.]

How do you write a migration to rename an ActiveRecord model and its table in Rails?

The other answers and comments covered table renaming, file renaming, and grepping through your code.

I'd like to add a few more caveats:

Let's use a real-world example I faced today: renaming a model from 'Merchant' to 'Business.'

  • Don't forget to change the names of dependent tables and models in the same migration. I changed my Merchant and MerchantStat models to Business and BusinessStat at the same time. Otherwise I'd have had to do way too much picking and choosing when performing search-and-replace.
  • For any other models that depend on your model via foreign keys, the other tables' foreign-key column names will be derived from your original model name. So you'll also want to do some rename_column calls on these dependent models. For instance, I had to rename the 'merchant_id' column to 'business_id' in various join tables (for has_and_belongs_to_many relationship) and other dependent tables (for normal has_one and has_many relationships). Otherwise I would have ended up with columns like 'business_stat.merchant_id' pointing to 'business.id'. Here's a good answer about doing column renames.
  • When grepping, remember to search for singular, plural, capitalized, lowercase, and even UPPERCASE (which may occur in comments) versions of your strings.
  • It's best to search for plural versions first, then singular. That way if you have an irregular plural - such as in my merchants :: businesses example - you can get all the irregular plurals correct. Otherwise you may end up with, for example, 'businesss' (3 s's) as an intermediate state, resulting in yet more search-and-replace.
  • Don't blindly replace every occurrence. If your model names collide with common programming terms, with values in other models, or with textual content in your views, you may end up being too over-eager. In my example, I wanted to change my model name to 'Business' but still refer to them as 'merchants' in the content in my UI. I also had a 'merchant' role for my users in CanCan - it was the confusion between the merchant role and the Merchant model that caused me to rename the model in the first place.

Register DLL file on Windows Server 2008 R2

Error 0x80040154 is COM's REGDB_E_CLASSNOTREG, which means "Class not registered". Basically, a COM class is not declared in the installation registry.

If you get this error when trying to register a DLL, it may be possible that the registration code for this DLL is trying to instantiate another COM server (DLL or EXE) which is missing or not registered on this installation.

If you don't have access to the original DLL source, I would suggest to use SysInternal's Process Monitor tool to track COM registry lookups (there use to be a more simple RegMon tool but it may not work any more).

You should put a filter on the working process (here: Regsvr32.exe) to only capture what's interesting. Then you should look for queries on HKEY_CLASSES_ROOT\[a progid, a string] that fail (with the NAME_NOT_FOUND error for example), or queries on HKEY_CLASSES_ROOT\CLSID\[a guid] that fail.

PS: Unfortunately, there may be many thing that seem to fail on a perfectly working Windows system, so you'll have to study all errors carefully. Good luck :-)

How to determine the screen width in terms of dp or dip at runtime in Android?

Try this:

Display display   = getWindowManager().getDefaultDisplay();
Point displaySize = new Point();
display.getSize(displaySize);
int width  = displaySize.x;
int height = displaySize.y;

"string could not resolved" error in Eclipse for C++ (Eclipse can't resolve standard library)

I've also had this issue.

I've found out that it is because Eclipse couldn't find all include headers.

Easy fix:

This simple and quick solution might fix your problem (for example, when the Eclipse project was moved to a different location on disk, then imported again in Eclipse), if not, jump to the next section (Detailed fix).

  1. Go to project > properties > C/C++ Build > Tool Chain Editor
  2. Change the Current toolchain to any other value, click Apply
  3. Set the Current toolchain to the original value, click Apply
  4. Compile your project

Detailed fix:

Before proceeding check if your toolchain is properly installed.

  1. Switch to a new workspace.
  2. Remove .cproject file and the ".settings" folder
  3. Import your project as Makefile project (or just create a new if you prefer CDT Build system)
  4. Go to project-> properties->C/C++ Build->Toolchain editor. Choose your toolchain.
  5. Press project->Index->Rebuild
  6. If the problem isn't resolved, change system language to English and try the above steps again.

Outdated answer:

This answer has been outdated. Proceed if nothing of the above helps

If the previous steps don't help we'll need to setup include directories manually (not recommended though)

  1. Search all unresolved headers using "Right click on Project > Index > Search for unresolved includes".
  2. Search their locations using "find /usr/include/ -name vector -print"
  3. Put include folder paths to "Right click on Project > Properties > C++ General/Path and Symbols/C++"
  4. Run "Right click on Project > Index > Rebuild"
  5. Start from step 1 if there are any unresolved symbols left.

How to print_r $_POST array?

Came across this 'implode' recently.

May be useful to output arrays. http://in2.php.net/implode

echo 'Variables: ' . implode( ', ', $_POST);

SQL query for today's date minus two months

TSQL, Alternative using variable declaration. (it might improve Query's readability)

DECLARE @gapPeriod DATETIME = DATEADD(MONTH,-2,GETDATE()); --Period:Last 2 months.

SELECT 
        *
    FROM 
        FB as A
    WHERE
        A.Dte <= @gapPeriod;                               --only older records.

How do you reinstall an app's dependencies using npm?

Follow this step to re install node modules and update them

works even if node_modules folder does not exist. now execute the following command synchronously. you can also use "npm update" but I think this'd preferred way

npm outdated // not necessary to run this command, but this will show outdated dependencies

npm install -g npm-check-updates // to install the "ncu" package

ncu -u --packageFile=package.json // to update dependencies version in package.json...don't run this command if you don't need to update the version

npm install: will install dependencies in your package.json file.

if you're okay with the version of your dependencies in your package.json file, no need to follow those steps just run

 npm install

How to do IF NOT EXISTS in SQLite

How about this?

INSERT OR IGNORE INTO EVENTTYPE (EventTypeName) VALUES 'ANI Received'

(Untested as I don't have SQLite... however this link is quite descriptive.)

Additionally, this should also work:

INSERT INTO EVENTTYPE (EventTypeName)
SELECT 'ANI Received'
WHERE NOT EXISTS (SELECT 1 FROM EVENTTYPE WHERE EventTypeName = 'ANI Received');

Remove Datepicker Function dynamically

This is the solution I use. It has more lines but it will only create the datepicker once.

$('#txtSearch').datepicker({
    constrainInput:false,
    beforeShow: function(){
        var t = $('#ddlSearchType').val();
        if( ['Required Date', 'Submitted Date'].indexOf(t) ) {
            $('#txtSearch').prop('readonly', false);
            return false;
        }
        else $('#txtSearch').prop('readonly', true);
    }
});

The datepicker will not show unless the value of ddlSearchType is either "Required Date" or "Submitted Date"

Can I use Homebrew on Ubuntu?

October 2019 - Ubuntu 18.04 on WSL with oh-my-zsh; the instructions here worked perfectly -

(first, install pre-requisites using sudo apt-get install build-essential curl file git)

finally create a ~/.zprofile with the following contents: emulate sh -c '. ~/.profile'

Converting string into datetime

python >= 3.7

to convert YYYY-MM-DD string to datetime object, datetime.fromisoformat could be used.

from datetime import datetime

date_string = "2012-12-12 10:10:10"
print (datetime.fromisoformat(date_string))
2012-12-12 10:10:10

Finding Android SDK on Mac and adding to PATH

If Android Studio shows you the path /Users/<name>/Library/Android/sdk but you can not find it in your folder, just right-click and select "Show View Option". There you will be able to select "Show Library Folder"; select it and you can access the SDK.

How to parse a JSON string to an array using Jackson

The other answer is correct, but for completeness, here are other ways:

List<SomeClass> list = mapper.readValue(jsonString, new TypeReference<List<SomeClass>>() { });
SomeClass[] array = mapper.readValue(jsonString, SomeClass[].class);

Python: Select subset from list based on index set

You could just use list comprehension:

property_asel = [val for is_good, val in zip(good_objects, property_a) if is_good]

or

property_asel = [property_a[i] for i in good_indices]

The latter one is faster because there are fewer good_indices than the length of property_a, assuming good_indices are precomputed instead of generated on-the-fly.


Edit: The first option is equivalent to itertools.compress available since Python 2.7/3.1. See @Gary Kerr's answer.

property_asel = list(itertools.compress(property_a, good_objects))

TensorFlow not found using pip

if you tried the solutions above and didin't solve the problem, it can be because of version inconsistency.

I installed python 3.9 and i couldn't install tensorflow with pip.

And then I uninstalled 3.9, then installed 3.8.7 and success... the max version that tensorflow is supported by is 3.8.x (in 2021) so, check your python version is compatible or not with current tensorflow.

How do I terminate a thread in C++11?

This question actually have more deep nature and good understanding of the multithreading concepts in general will provide you insight about this topic. In fact there is no any language or any operating system which provide you facilities for asynchronous abruptly thread termination without warning to not use them. And all these execution environments strongly advise developer or even require build multithreading applications on the base of cooperative or synchronous thread termination. The reason for this common decisions and advices is that all they are built on the base of the same general multithreading model.

Let's compare multiprocessing and multithreading concepts to better understand advantages and limitations of the second one.

Multiprocessing assumes splitting of the entire execution environment into set of completely isolated processes controlled by the operating system. Process incorporates and isolates execution environment state including local memory of the process and data inside it and all system resources like files, sockets, synchronization objects. Isolation is a critically important characteristic of the process, because it limits the faults propagation by the process borders. In other words, no one process can affects the consistency of any another process in the system. The same is true for the process behaviour but in the less restricted and more blur way. In such environment any process can be killed in any "arbitrary" moment, because firstly each process is isolated, secondly, operating system have full knowledges about all resources used by process and can release all of them without leaking, and finally process will be killed by OS not really in arbitrary moment, but in the number of well defined points where the state of the process is well known.

In contrast, multithreading assumes running multiple threads in the same process. But all this threads are share the same isolation box and there is no any operating system control of the internal state of the process. As a result any thread is able to change global process state as well as corrupt it. At the same moment the points in which the state of the thread is well known to be safe to kill a thread completely depends on the application logic and are not known neither for operating system nor for programming language runtime. As a result thread termination at the arbitrary moment means killing it at arbitrary point of its execution path and can easily lead to the process-wide data corruption, memory and handles leakage, threads leakage and spinlocks and other intra-process synchronization primitives leaved in the closed state preventing other threads in doing progress.

Due to this the common approach is to force developers to implement synchronous or cooperative thread termination, where the one thread can request other thread termination and other thread in well-defined point can check this request and start the shutdown procedure from the well-defined state with releasing of all global system-wide resources and local process-wide resources in the safe and consistent way.

Bash foreach loop

Here is a while loop:

while read filename
do
    echo "Printing: $filename"
    cat "$filename"
done < filenames.txt

scrollTop jquery, scrolling to div with id?

try this

    $('#div_id').animate({scrollTop:0}, '500', 'swing');

Converting Java objects to JSON with Jackson

This might be useful:

objectMapper.writeValue(new File("c:\\employee.json"), employee);

// display to console
Object json = objectMapper.readValue(
     objectMapper.writeValueAsString(employee), Object.class);

System.out.println(objectMapper.writerWithDefaultPrettyPrinter()
     .writeValueAsString(json));

Return number of rows affected by UPDATE statements

You might need to collect the stats as you go, but @@ROWCOUNT captures this:

declare @Fish table (
Name varchar(32)
)

insert into @Fish values ('Cod')
insert into @Fish values ('Salmon')
insert into @Fish values ('Butterfish')
update @Fish set Name = 'LurpackFish' where Name = 'Butterfish'
select @@ROWCOUNT  --gives 1

update @Fish set Name = 'Dinner'
select @@ROWCOUNT -- gives 3

What is the "right" JSON date format?

JSON itself does not specify how dates should be represented, but JavaScript does.

You should use the format emitted by Date's toJSON method:

2012-04-23T18:25:43.511Z

Here's why:

  1. It's human readable but also succinct

  2. It sorts correctly

  3. It includes fractional seconds, which can help re-establish chronology

  4. It conforms to ISO 8601

  5. ISO 8601 has been well-established internationally for more than a decade

  6. ISO 8601 is endorsed by W3C, RFC3339, and XKCD

That being said, every date library ever written can understand "milliseconds since 1970". So for easy portability, ThiefMaster is right.

Remove quotes from a character vector in R

There are no quotes in the return value, only in the default output from print() when you display the value. Try

> print(char[1], quote=FALSE)
[1] one

or

> cat(char[1], "\n")
one

to see the value without quotes.

Vue.js - How to properly watch for nested data

How if you want to watch a property for a while and then to un-watch it?

Or to watch a library child component property?

You can use the "dynamic watcher":

this.$watch(
 'object.property', //what you want to watch
 (newVal, oldVal) => {
    //execute your code here
 }
)

The $watch returns an unwatch function which will stop watching if it is called.

var unwatch = vm.$watch('a', cb)
// later, teardown the watcher
unwatch()

Also you can use the deep option:

this.$watch(
'someObject', () => {
    //execute your code here
},
{ deep: true }
)

Please make sure to take a look to docs

Update statement with inner join on Oracle

That syntax isn't valid in Oracle. You can do this:

UPDATE table1 SET table1.value = (SELECT table2.CODE
                                  FROM table2 
                                  WHERE table1.value = table2.DESC)
WHERE table1.UPDATETYPE='blah'
AND EXISTS (SELECT table2.CODE
            FROM table2 
            WHERE table1.value = table2.DESC);

Or you might be able to do this:

UPDATE 
(SELECT table1.value as OLD, table2.CODE as NEW
 FROM table1
 INNER JOIN table2
 ON table1.value = table2.DESC
 WHERE table1.UPDATETYPE='blah'
) t
SET t.OLD = t.NEW

It depends if the inline view is considered updateable by Oracle ( To be updatable for the second statement depends on some rules listed here ).

Expand/collapse section in UITableView in iOS

So, based on the 'button in header' solution, here is a clean and minimalist implementation:

  • you keep track of collapsed (or expanded) sections in a property
  • you tag the button with the section index
  • you set a selected state on that button to change the arrow direction (like ? and ?)

Here is the code:

@interface MyTableViewController ()
@property (nonatomic, strong) NSMutableIndexSet *collapsedSections;
@end

...

@implementation MyTableViewController

- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (!self)
        return;
    self.collapsedSections = [NSMutableIndexSet indexSet];
    return self;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // if section is collapsed
    if ([self.collapsedSections containsIndex:section])
        return 0;

    // if section is expanded
#warning incomplete implementation
    return [super tableView:tableView numberOfRowsInSection:section];
}

- (IBAction)toggleSectionHeader:(UIView *)sender
{
    UITableView *tableView = self.tableView;
    NSInteger section = sender.tag;

    MyTableViewHeaderFooterView *headerView = (MyTableViewHeaderFooterView *)[self tableView:tableView viewForHeaderInSection:section];

    if ([self.collapsedSections containsIndex:section])
    {
        // section is collapsed
        headerView.button.selected = YES;
        [self.collapsedSections removeIndex:section];
    }
    else
    {
        // section is expanded
        headerView.button.selected = NO;
        [self.collapsedSections addIndex:section];
    }

    [tableView beginUpdates];
    [tableView reloadSections:[NSIndexSet indexSetWithIndex:section] withRowAnimation:UITableViewRowAnimationAutomatic];
    [tableView endUpdates];
}

@end

How to rollback just one step using rake db:migrate

For starters

rake db:rollback will get you back one step

then

rake db:rollback STEP=n

Will roll you back n migrations where n is the number of recent migrations you want to rollback.

More references here.

TypeError: can only concatenate list (not "str") to list

Let me fix your code

inventory=["sword", "potion", "armour", "bow"]
print(inventory)
print("\ncommands: use (remove) and pickup (add)")
selection=input("choose a command [use/pickup]")

if selection == "use":
    print(inventory)
    inventory.remove(input("What do you want to use? "))
    print(inventory)
elif selection == "pickup":
    print(inventory)
    add=input("What do you want to pickup? ")
    newinv=inventory+[str(add)] #use '[str(add)]' or list(str(add))
    print(newinv)

The error is you are adding string and list, you should use list or [] to make the string become list type

Call web service in excel

For an updated answer see this SO question:

calling web service using VBA code in excel 2010

Both threads should be merged though.

How to create a md5 hash of a string in C?

It would appear that you should

  • Create a struct MD5context and pass it to MD5Init to get it into a proper starting condition
  • Call MD5Update with the context and your data
  • Call MD5Final to get the resulting hash

These three functions and the structure definition make a nice abstract interface to the hash algorithm. I'm not sure why you were shown the core transform function in that header as you probably shouldn't interact with it directly.

The author could have done a little more implementation hiding by making the structure an abstract type, but then you would have been forced to allocate the structure on the heap every time (as opposed to now where you can put it on the stack if you so desire).

ERROR Android emulator gets killed

None of these answers worked for me. I just created a new Virtual Device with the same exact settings and deleted the old one. New one worked fine.

How do I (or can I) SELECT DISTINCT on multiple columns?

I want to select the distinct values from one column 'GrondOfLucht' but they should be sorted in the order as given in the column 'sortering'. I cannot get the distinct values of just one column using

Select distinct GrondOfLucht,sortering
from CorWijzeVanAanleg
order by sortering

It will also give the column 'sortering' and because 'GrondOfLucht' AND 'sortering' is not unique, the result will be ALL rows.

use the GROUP to select the records of 'GrondOfLucht' in the order given by 'sortering

SELECT        GrondOfLucht
FROM            dbo.CorWijzeVanAanleg
GROUP BY GrondOfLucht, sortering
ORDER BY MIN(sortering)

sql primary key and index

NOTE: This answer addresses enterprise-class development in-the-large.

This is an RDBMS issue, not just SQL Server, and the behavior can be very interesting. For one, while it is common for primary keys to be automatically (uniquely) indexed, it is NOT absolute. There are times when it is essential that a primary key NOT be uniquely indexed.

In most RDBMSs, a unique index will automatically be created on a primary key if one does not already exist. Therefore, you can create your own index on the primary key column before declaring it as a primary key, then that index will be used (if acceptable) by the database engine when you apply the primary key declaration. Often, you can create the primary key and allow its default unique index to be created, then create your own alternate index on that column, then drop the default index.

Now for the fun part--when do you NOT want a unique primary key index? You don't want one, and can't tolerate one, when your table acquires enough data (rows) to make the maintenance of the index too expensive. This varies based on the hardware, the RDBMS engine, characteristics of the table and the database, and the system load. However, it typically begins to manifest once a table reaches a few million rows.

The essential issue is that each insert of a row or update of the primary key column results in an index scan to ensure uniqueness. That unique index scan (or its equivalent in whichever RDBMS) becomes much more expensive as the table grows, until it dominates the performance of the table.

I have dealt with this issue many times with tables as large as two billion rows, 8 TBs of storage, and forty million row inserts per day. I was tasked to redesign the system involved, which included dropping the unique primary key index practically as step one. Indeed, dropping that index was necessary in production simply to recover from an outage, before we even got close to a redesign. That redesign included finding other ways to ensure the uniqueness of the primary key and to provide quick access to the data.

How do I replace all line breaks in a string with <br /> elements?

This worked for me when value came from a TextBox:

string.replace(/\n|\r\n|\r/g, '<br/>');

npm ERR! network getaddrinfo ENOTFOUND

Maybe it's because the proxy do not stand for https. What I do is clear the proxy content of ~/.npmrc, or use

    npm config delete proxy

What's more, nrm is recommended for this problem.

"Android library projects cannot be launched"?

In Eclipse Project -> Clean Modify project.properties like this :

target=android-10
android.library.reference.1=F:/svn/WiEngine_library

Eclipse memory settings when getting "Java Heap Space" and "Out of Memory"

Adobe Flash Builder 4.6 Read Me.pdf recommendeds that you edit the eclipse.ini file for your Eclipse instance, so that it includes the following settings:

-vmargs -Xms256m -Xmx512m -XX:MaxPermSize=256m -XX:PermSize=64m

Fastest way to check a string contain another substring in JavaScript?

For finding a simple string, using the indexOf() method and using regex is pretty much the same: http://jsperf.com/substring - so choose which ever one that seems easier to write.

Including all the jars in a directory within the Java classpath

You need to add them all separately. Alternatively, if you really need to just specify a directory, you can unjar everything into one dir and add that to your classpath. I don't recommend this approach however as you risk bizarre problems in classpath versioning and unmanagability.

How to make a Java Generic method static?

public static <E> E[] appendToArray(E[] array, E item) { ...

Note the <E>.

Static generic methods need their own generic declaration (public static <E>) separate from the class's generic declaration (public class ArrayUtils<E>).

If the compiler complains about a type ambiguity in invoking a static generic method (again not likely in your case, but, generally speaking, just in case), here's how to explicitly invoke a static generic method using a specific type (_class_.<_generictypeparams_>_methodname_):

String[] newStrings = ArrayUtils.<String>appendToArray(strings, "another string");

This would only happen if the compiler can't determine the generic type because, e.g. the generic type isn't related to the method arguments.

Default argument values in JavaScript functions

You have to check if the argument is undefined:

function func(a, b) {
    if (a === undefined) a = "default value";
    if (b === undefined) b = "default value";
}

Also note that this question has been answered before.

Embedding DLLs in a compiled executable

I use the csc.exe compiler called from a .vbs script.

In your xyz.cs script, add the following lines after the directives (my example is for the Renci SSH):

using System;
using Renci;//FOR THE SSH
using System.Net;//FOR THE ADDRESS TRANSLATION
using System.Reflection;//FOR THE Assembly

//+ref>"C:\Program Files (x86)\Microsoft\ILMerge\Renci.SshNet.dll"
//+res>"C:\Program Files (x86)\Microsoft\ILMerge\Renci.SshNet.dll"
//+ico>"C:\Program Files (x86)\Microsoft CAPICOM 2.1.0.2 SDK\Samples\c_sharp\xmldsig\resources\Traffic.ico"

The ref, res and ico tags will be picked up by the .vbs script below to form the csc command.

Then add the assembly resolver caller in the Main:

public static void Main(string[] args)
{
    AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
    .

...and add the resolver itself somewhere in the class:

    static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
    {
        String resourceName = new AssemblyName(args.Name).Name + ".dll";

        using (var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName))
        {
            Byte[] assemblyData = new Byte[stream.Length];
            stream.Read(assemblyData, 0, assemblyData.Length);
            return Assembly.Load(assemblyData);
        }

    }

I name the vbs script to match the .cs filename (e.g. ssh.vbs looks for ssh.cs); this makes running the script numerous times a lot easier, but if you aren't an idiot like me then a generic script could pick up the target .cs file from a drag-and-drop:

    Dim name_,oShell,fso
    Set oShell = CreateObject("Shell.Application")
    Set fso = CreateObject("Scripting.fileSystemObject")

    'TAKE THE VBS SCRIPT NAME AS THE TARGET FILE NAME
    '################################################
    name_ = Split(wscript.ScriptName, ".")(0)

    'GET THE EXTERNAL DLL's AND ICON NAMES FROM THE .CS FILE
    '#######################################################
    Const OPEN_FILE_FOR_READING = 1
    Set objInputFile = fso.OpenTextFile(name_ & ".cs", 1)

    'READ EVERYTHING INTO AN ARRAY
    '#############################
    inputData = Split(objInputFile.ReadAll, vbNewline)

    For each strData In inputData

        if left(strData,7)="//+ref>" then 
            csc_references = csc_references & " /reference:" &         trim(replace(strData,"//+ref>","")) & " "
        end if

        if left(strData,7)="//+res>" then 
            csc_resources = csc_resources & " /resource:" & trim(replace(strData,"//+res>","")) & " "
        end if

        if left(strData,7)="//+ico>" then 
            csc_icon = " /win32icon:" & trim(replace(strData,"//+ico>","")) & " "
        end if
    Next

    objInputFile.Close


    'COMPILE THE FILE
    '################
    oShell.ShellExecute "c:\windows\microsoft.net\framework\v3.5\csc.exe", "/warn:1 /target:exe " & csc_references & csc_resources & csc_icon & " " & name_ & ".cs", "", "runas", 2


    WScript.Quit(0)

git pull while not in a git directory

Edit:

There's either a bug with git pull, or you can't do what you're trying to do with that command. You can however, do it with fetch and merge:

cd /X
git --git-dir=/X/Y/.git fetch
git --git-dir=/X/Y/.git --work-tree=/X/Y merge origin/master

Original answer:

Assuming you're running bash or similar, you can do (cd /X/Y; git pull).

The git man page specifies some variables (see "The git Repository") that seem like they should help, but I can't make them work right (with my repository in /tmp/ggg2):

GIT_WORK_TREE=/tmp/ggg2 GIT_DIR=/tmp/ggg2/.git git pull
fatal: /usr/lib/git-core/git-pull cannot be used without a working tree.

Running the command below while my cwd is /tmp updates that repo, but the updated file appears in /tmp instead of the working tree /tmp/ggg2:

GIT_DIR=/tmp/ggg2/.git git pull

See also this answer to a similar question, which demonstrates the --git-dir and --work-tree flags.

Unsupported Media Type in postman

Thanks for all Contributions;

that is happening with me in XML; I just Change application/XML to be text/XML which solve my Problem

Sending a file over TCP sockets in Python

Remove below code

s.send("Hello server!")

because your sending s.send("Hello server!") to server, so your output file is somewhat more in size.

Post form data using HttpWebRequest

Try this:

var request = (HttpWebRequest)WebRequest.Create("http://www.example.com/recepticle.aspx");

var postData = "thing1=hello";
    postData += "&thing2=world";
var data = Encoding.ASCII.GetBytes(postData);

request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;

using (var stream = request.GetRequestStream())
{
    stream.Write(data, 0, data.Length);
}

var response = (HttpWebResponse)request.GetResponse();

var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();

Check if element is in the list (contains)

Use std::find, something like:

if (std::find(std::begin(my_list), std::end(my_list), my_var) != std::end(my_list))
    // my_list has my_var

Is there a way to change the spacing between legend items in ggplot2?

Use any of these

legend.spacing = unit(1,"cm")
legend.spacing.x = unit(1,"cm")
legend.spacing.y = unit(1,"cm")

Is gcc's __attribute__((packed)) / #pragma pack unsafe?

It's perfectly safe as long as you always access the values through the struct via the . (dot) or -> notation.

What's not safe is taking the pointer of unaligned data and then accessing it without taking that into account.

Also, even though each item in the struct is known to be unaligned, it's known to be unaligned in a particular way, so the struct as a whole must be aligned as the compiler expects or there'll be trouble (on some platforms, or in future if a new way is invented to optimise unaligned accesses).

"Prevent saving changes that require the table to be re-created" negative effects

SQL Server drops and recreates the tables only if you:

  • Add a new column
  • Change the Allow Nulls setting for a column
  • Change the column order in the table
  • Change the column data type

Using ALTER is safer, as in case the metadata is lost while you re-create the table, your data will be lost.

How to integrate Dart into a Rails app

If you run pub build --mode=debug the build directory contains the application without symlinks. The Dart code should be retained when --mode=debug is used.

Here is some discussion going on about this topic too Dart and it's place in Rails Assets Pipeline

Convert NSData to String?

Swift 5:

String(data: data!, encoding: String.Encoding.utf8)

The transaction log for database is full. To find out why space in the log cannot be reused, see the log_reuse_wait_desc column in sys.databases

As an aside, it is always a good practice (and possibly a solution for this type of issue) to delete a large number of rows by using batches:

WHILE EXISTS (SELECT 1 
              FROM   YourTable 
              WHERE  <yourCondition>) 
  DELETE TOP(10000) FROM YourTable 
  WHERE  <yourCondition>

PLS-00201 - identifier must be declared

The procedure name should be in caps while creating procedure in database. You may use small letters for your procedure name while calling from Java class like:

String getDBUSERByUserIdSql = "{call getDBUSERByUserId(?,?,?,?)}";

In database the name of procedure should be:

GETDBUSERBYUSERID    -- (all letters in caps only)

This serves as one of the solutions for this problem.

How to make a deep copy of Java ArrayList

public class Person{

    String s;
    Date d;
    ...

    public Person clone(){
        Person p = new Person();
        p.s = this.s.clone();
        p.d = this.d.clone();
        ...
        return p;
    }
}

In your executing code:

ArrayList<Person> clone = new ArrayList<Person>();
for(Person p : originalList)
    clone.add(p.clone());

How to copy an object in Objective-C

another.obj = [obj copyWithZone: zone];

I think, that this line causes memory leak, because you access to obj through property which is (I assume) declared as retain. So, retain count will be increased by property and copyWithZone.

I believe it should be:

another.obj = [[obj copyWithZone: zone] autorelease];

or:

SomeOtherObject *temp = [obj copyWithZone: zone];
another.obj = temp;
[temp release]; 

How to bundle vendor scripts separately and require them as needed with Webpack?

I am not sure if I fully understand your problem but since I had similar issue recently I will try to help you out.

Vendor bundle.

You should use CommonsChunkPlugin for that. in the configuration you specify the name of the chunk (e.g. vendor), and file name that will be generated (vendor.js).

new webpack.optimize.CommonsChunkPlugin("vendor", "vendor.js", Infinity),

Now important part, you have to now specify what does it mean vendor library and you do that in an entry section. One one more item to entry list with the same name as the name of the newly declared chunk (i.e. 'vendor' in this case). The value of that entry should be the list of all the modules that you want to move to vendor bundle. in your case it should look something like:

entry: {
    app: 'entry.js',
    vendor: ['jquery', 'jquery.plugin1']
}

JQuery as global

Had the same problem and solved it with ProvidePlugin. here you are not defining global object but kind of shurtcuts to modules. i.e. you can configure it like that:

new webpack.ProvidePlugin({
    $: "jquery"
})

And now you can just use $ anywhere in your code - webpack will automatically convert that to

require('jquery')

I hope it helped. you can also look at my webpack configuration file that is here

I love webpack, but I agree that the documentation is not the nicest one in the world... but hey.. people were saying same thing about Angular documentation in the begining :)


Edit:

To have entrypoint-specific vendor chunks just use CommonsChunkPlugins multiple times:

new webpack.optimize.CommonsChunkPlugin("vendor-page1", "vendor-page1.js", Infinity),
new webpack.optimize.CommonsChunkPlugin("vendor-page2", "vendor-page2.js", Infinity),

and then declare different extenral libraries for different files:

entry: {
    page1: ['entry.js'],
    page2: ['entry2.js'],
    "vendor-page1": [
        'lodash'
    ],
    "vendor-page2": [
        'jquery'
    ]
},

If some libraries are overlapping (and for most of them) between entry points then you can extract them to common file using same plugin just with different configuration. See this example.

How to change the text color of first select option

If the first item is to be used as a placeholder (empty value) and your select is required then you can use the :invalid pseudo-class to target it.

_x000D_
_x000D_
select {_x000D_
  -webkit-appearance: menulist-button;_x000D_
  color: black;_x000D_
}_x000D_
_x000D_
select:invalid {_x000D_
  color: green;_x000D_
}
_x000D_
<select required>_x000D_
  <option value="">Item1</option>_x000D_
  <option value="Item2">Item2</option>_x000D_
  <option value="Item3">Item3</option>_x000D_
</select>
_x000D_
_x000D_
_x000D_

Create new project on Android, Error: Studio Unknown host 'services.gradle.org'

Go to setting option which is on upper strip of android studio and follow the below steps to solve the problem.

setting > Appearance&behavior > HTTP and proxy > click on Auto detect Enable option.(The option with radio box)select this one...

MSVCP140.dll missing

Either make your friends download the runtime DLL (@Kay's answer), or compile the app with static linking.

In visual studio, go to Project tab -> properties - > configuration properties -> C/C++ -> Code Generation on runtime library choose /MTd for debug mode and /MT for release mode.

This will cause the compiler to embed the runtime into the app. The executable will be significantly bigger, but it will run without any need of runtime dlls.

What is the best way to remove accents (normalize) in a Python unicode string?

Actually I work on project compatible python 2.6, 2.7 and 3.4 and I have to create IDs from free user entries.

Thanks to you, I have created this function that works wonders.

import re
import unicodedata

def strip_accents(text):
    """
    Strip accents from input String.

    :param text: The input string.
    :type text: String.

    :returns: The processed String.
    :rtype: String.
    """
    try:
        text = unicode(text, 'utf-8')
    except (TypeError, NameError): # unicode is a default on python 3 
        pass
    text = unicodedata.normalize('NFD', text)
    text = text.encode('ascii', 'ignore')
    text = text.decode("utf-8")
    return str(text)

def text_to_id(text):
    """
    Convert input text to id.

    :param text: The input string.
    :type text: String.

    :returns: The processed String.
    :rtype: String.
    """
    text = strip_accents(text.lower())
    text = re.sub('[ ]+', '_', text)
    text = re.sub('[^0-9a-zA-Z_-]', '', text)
    return text

result:

text_to_id("Montréal, über, 12.89, Mère, Françoise, noël, 889")
>>> 'montreal_uber_1289_mere_francoise_noel_889'

How do I change a TCP socket to be non-blocking?

It is sometimes convenient to employ the "send/recv" family of system calls. If the flags parameter contains the MSG_DONTWAIT flag, each call will behave similar to a socket having the O_NONBLOCK flag set.

ssize_t send(int sockfd, const void *buf, size_t len, int flags);

ssize_t recv(int sockfd, void *buf, size_t len, int flags);

How to make a redirection on page load in JSF 1.x

Edit 2

I finally found a solution by implementing my forward action like that:

private void applyForward() {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    // Find where to redirect the user.
    String redirect = getTheFromOutCome();

    // Change the Navigation context.
    NavigationHandler myNav = facesContext.getApplication().getNavigationHandler();
    myNav.handleNavigation(facesContext, null, redirect);

    // Update the view root
    UIViewRoot vr = facesContext.getViewRoot();
    if (vr != null) {
        // Get the URL where to redirect the user
        String url = facesContext.getExternalContext().getRequestContextPath();
        url = url + "/" + vr.getViewId().replace(".xhtml", ".jsf");
        Object obj = facesContext.getExternalContext().getResponse();
        if (obj instanceof HttpServletResponse) {
            HttpServletResponse response = (HttpServletResponse) obj;
            try {
                // Redirect the user now.
                response.sendRedirect(response.encodeURL(url));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

It works (at least regarding my first tests), but I still don't like the way it is implemented... Any better idea?


Edit This solution does not work. Indeed, when the doForward() function is called, the JSF lifecycle has already been started, and then recreate a new request is not possible.


One idea to solve this issue, but I don't really like it, is to force the doForward() action during one of the setBindedInputHidden() method:

private boolean actionDefined = false;
private boolean actionParamDefined = false;

public void setHiddenActionParam(HtmlInputHidden hiddenActionParam) {
    this.hiddenActionParam = hiddenActionParam;
    String actionParam = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get("actionParam");
    this.hiddenActionParam.setValue(actionParam);
    actionParamDefined = true;
    forwardAction();
}

public void setHiddenAction(HtmlInputHidden hiddenAction) {
    this.hiddenAction = hiddenAction;
    String action = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get("action");
    this.hiddenAction.setValue(action);
    actionDefined = true;
    forwardAction();
}

private void forwardAction() {
    if (!actionDefined || !actionParamDefined) {
        // As one of the inputHidden was not binded yet, we do nothing...
        return;
    }
    // Now, both action and actionParam inputHidden are binded, we can execute the forward...
    doForward(null);
}

This solution does not involve any Javascript call, and works does not work.

Convert date field into text in Excel

You don't need to convert the original entry - you can use TEXT function in the concatenation formula, e.g. with date in A1 use a formula like this

="Today is "&TEXT(A1,"dd-mm-yyyy")

You can change the "dd-mm-yyyy" part as required

Python urllib2: Receive JSON response from url

Though I guess it has already answered I would like to add my little bit in this

import json
import urllib2
class Website(object):
    def __init__(self,name):
        self.name = name 
    def dump(self):
     self.data= urllib2.urlopen(self.name)
     return self.data

    def convJSON(self):
         data=  json.load(self.dump())
     print data

domain = Website("https://example.com")
domain.convJSON()

Note : object passed to json.load() should support .read() , therefore urllib2.urlopen(self.name).read() would not work . Doamin passed should be provided with protocol in this case http

programmatically add column & rows to WPF Datagrid

I found a solution that adds columns at runtime, and binds to a DataTable.

Unfortunately, with 47 columns defined this way, it doesn't bind to the data fast enough for me. Any suggestions?

xaml

<DataGrid
  Name="dataGrid"
  AutoGenerateColumns="False"
  ItemsSource="{Binding}">
</DataGrid>

xaml.cs using System.Windows.Data;

if (table != null) // table is a DataTable
{
  foreach (DataColumn col in table.Columns)
  {
    dataGrid.Columns.Add(
      new DataGridTextColumn
      {
        Header = col.ColumnName,
        Binding = new Binding(string.Format("[{0}]", col.ColumnName))
      });
  }

  dataGrid.DataContext = table;
}

"Initializing" variables in python?

You are asking to initialize four variables using a single float object, which of course is not iterable. You can do -

  1. grade_1, grade_2, grade_3, grade_4 = [0.0 for _ in range(4)]
  2. grade_1 = grade_2 = grade_3 = grade_4 = 0.0

Unless you want to initialize them with different values of course.

Docker error cannot delete docker container, conflict: unable to remove repository reference

First, remove the container names

$ sudo docker rm backstabbing_ritchie

The result

$ sudo docker rm backstabbing_ritchie
  backstabbing_ritchie

delete the second part, which is listed on the container to be deleted

$ sudo docker rm drunk_feynman 
  drunk_feynman

Second, remove the container

$ sudo docker rmi training/webapp

The result

$ sudo docker rmi training/webapp  
  Untagged: training/webapp:latest
  Deleted: 54bb4e8718e8600d78a5d7c62208c2f13c8caf0e4fe73d2bc0e474e93659c0b5
  Deleted: f74dd040041eb4c032d3025fe38ea85de8075992bdce6789b694a44b20feb8de
  Deleted: 7cbae69141977b99c44dc6957b032ad50c1379124d62b7d7d05ab7329b42348e
  Deleted: abb991a4ed5e4cde2d9964aec4cccbe0015ba9cc9838b696e7a32e1ddf4a49bd
  Deleted: 1952e3bf3d7e8e6a9b1e23bd4142e3c42ff7f4b7925122189704323593fd54ac
  Deleted: f95ebd363bf27a7546deced7a41a4099334e37a3d2901fa3817e62bb1ade183f
  Deleted: 20dd0c75901396d41a7b64d551ff04952084cc3947e66c67bae35759c80da338
  Deleted: 2505b734adda3720799dde5004302f5edb3f2a2ff71438f6488b530b728ba666
  Deleted: 2ee0b8f351f753f78f1178000ae37616eb5bf241d4ef041b612d58e1fd2aefdc
  Deleted: 2ce633e3e9c9bd9e8fe7ade5984d7656ec3fc3994f05a97d5490190ef95bce8d
  Deleted: 98b15185dba7f85308eb0e21196956bba653cf142b36dc08059b3468a01bf35d
  Deleted: 515565c29c940355ec886c992231c6019a6cffa17ff1d2abdfc844867c9080c5
  Deleted: 2880a3395eded9b748c94d27767e1e202f8d7cb06f1e40e18d1b1c77687aef77

Check the continer

  $ sudo docker ps -as
  CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                    PORTS               NAMES                  SIZE
  78479ffeba5c        ubuntu              "/bin/bash"         43 hours ago        Exited (0) 43 hours ago                       sharp_wescoff          81 B (virtual 187.7 MB)

Where is `%p` useful with printf?

x is used to print t pointer argument in hexadecimal.

A typical address when printed using %x would look like bfffc6e4 and the sane address printed using %p would be 0xbfffc6e4

I am receiving warning in Facebook Application using PHP SDK

You need to ensure that any code that modifies the HTTP headers is executed before the headers are sent. This includes statements like session_start(). The headers will be sent automatically when any HTML is output.

Your problem here is that you're sending the HTML ouput at the top of your page before you've executed any PHP at all.

Move the session_start() to the top of your document :

<?php    session_start(); ?> <html> <head> <title>PHP SDK</title> </head> <body> <?php require_once 'src/facebook.php';    // more PHP code here. 

Why can't I declare static methods in an interface?

I'll answer your question with an example. Suppose we had a Math class with a static method add. You would call this method like so:

Math.add(2, 3);

If Math were an interface instead of a class, it could not have any defined functions. As such, saying something like Math.add(2, 3) makes no sense.

"Non-resolvable parent POM: Could not transfer artifact" when trying to refer to a parent pom from a child pom with ${parent.groupid}

Looks like you're trying to both inherit the groupId from the parent, and simultaneously specify the parent using an inherited groupId!

In the child pom, use something like this:

<modelVersion>4.0.0</modelVersion>

<parent>
  <groupId>org.felipe</groupId>
  <artifactId>tutorial_maven</artifactId>
  <version>1.0-SNAPSHOT</version>
  <relativePath>../pom.xml</relativePath>
</parent>

<artifactId>tutorial_maven_jar</artifactId>

Using properties like ${project.groupId} won't work there. If you specify the parent in this way, then you can inherit the groupId and version in the child pom. Hence, you only need to specify the artifactId in the child pom.

Right way to reverse a pandas DataFrame?

One way to do this if dealing with sorted range index is:

data = data.sort_index(ascending=False)

This approach has the benefits of (1) being a single line, (2) not requiring a utility function, and most importantly (3) not actually changing any of the data in the dataframe.

Caveat: this works by sorting the index in descending order and so may not always be appropriate or generalize for any given Dataframe.

About "*.d.ts" in TypeScript

d stands for Declaration Files:

When a TypeScript script gets compiled there is an option to generate a declaration file (with the extension .d.ts) that functions as an interface to the components in the compiled JavaScript. In the process the compiler strips away all function and method bodies and preserves only the signatures of the types that are exported. The resulting declaration file can then be used to describe the exported virtual TypeScript types of a JavaScript library or module when a third-party developer consumes it from TypeScript.

The concept of declaration files is analogous to the concept of header file found in C/C++.

declare module arithmetics {
    add(left: number, right: number): number;
    subtract(left: number, right: number): number;
    multiply(left: number, right: number): number;
    divide(left: number, right: number): number;
}

Type declaration files can be written by hand for existing JavaScript libraries, as has been done for jQuery and Node.js.

Large collections of declaration files for popular JavaScript libraries are hosted on GitHub in DefinitelyTyped and the Typings Registry. A command-line utility called typings is provided to help search and install declaration files from the repositories.

Why is the console window closing immediately once displayed my output?

Instead of using

Console.Readline()
Console.Read()
Console.ReadKey()

you can run your program using Ctrl+F5 (if you are in Visual Studio). Then Visual Studio will keep the console window open, until you press a key.

Note: You cannot debug your code in this approach.

Read only the first line of a file?

first_line = next(open(filename))

What is the standard way to add N seconds to datetime.time in Python?

As others here have stated, you can just use full datetime objects throughout:

from datetime import datetime, date, time, timedelta
sometime = time(8,00) # 8am
later = (datetime.combine(date.today(), sometime) + timedelta(seconds=3)).time()

However, I think it's worth explaining why full datetime objects are required. Consider what would happen if I added 2 hours to 11pm. What's the correct behavior? An exception, because you can't have a time larger than 11:59pm? Should it wrap back around?

Different programmers will expect different things, so whichever result they picked would surprise a lot of people. Worse yet, programmers would write code that worked just fine when they tested it initially, and then have it break later by doing something unexpected. This is very bad, which is why you're not allowed to add timedelta objects to time objects.

Short IF - ELSE statement

jXPanel6.setVisible(jXPanel6.isVisible());

or in your form:

jXPanel6.setVisible(jXPanel6.isVisible()?true:false);

Force file download with php using header()

Here is a snippet from me in testing... obviously passing via get to the script may not be the best... should post or just send an id and grab guid from db... anyhow.. this worked. I take the URL and convert it to a path.

// Initialize a file URL to the variable
$file = $_GET['url'];
$file = str_replace(Polepluginforrvms_Plugin::$install_url, $DOC_ROOT.'/pole-permitter/', $file );

$quoted = sprintf('"%s"', addcslashes(basename($file), '"\\'));
$size   = filesize($file);

header( "Content-type: application/octet-stream" );
header( "Content-Disposition: attachment; filename={$quoted}" );
header( "Content-length: " . $size );
header( "Pragma: no-cache" );
header( "Expires: 0" );
readfile( "{$file}" );

Neither BindingResult nor plain target object for bean name available as request attribute

I had problem like this, but with several "actions". My solution looks like this:

    <form method="POST" th:object="${searchRequest}" action="searchRequest" >
          <input type="text" th:field="*{name}"/>
          <input type="submit" value="find" th:value="find" />
    </form>
        ...
    <form method="POST" th:object="${commodity}" >
        <input type="text" th:field="*{description}"/>
        <input type="submit" value="add" />
    </form>

And controller

@Controller
@RequestMapping("/goods")
public class GoodsController {
    @RequestMapping(value = "add", method = GET)
    public String showGoodsForm(Model model){
           model.addAttribute(new Commodity());
           model.addAttribute("searchRequest", new SearchRequest());
           return "goodsForm";
    }
    @RequestMapping(value = "add", method = POST)
    public ModelAndView processAddCommodities(
            @Valid Commodity commodity,
            Errors errors) {
        if (errors.hasErrors()) {
            ModelAndView model = new ModelAndView("goodsForm");
            model.addObject("searchRequest", new SearchRequest());
            return model;
        }
        ModelAndView model = new ModelAndView("redirect:/goods/" + commodity.getName());
        model.addObject(new Commodity());
        model.addObject("searchRequest", new SearchRequest());
        return model;
    }
    @RequestMapping(value="searchRequest", method=POST)
    public String processFindCommodity(SearchRequest commodity, Model model) {
    ...
        return "catalog";
    }

I'm sure - here is not "best practice", but it is works without "Neither BindingResult nor plain target object for bean name available as request attribute".

When to use throws in a Java method declaration?

The code that you looked at is not ideal. You should either:

  1. Catch the exception and handle it; in which case the throws is unnecesary.

  2. Remove the try/catch; in which case the Exception will be handled by a calling method.

  3. Catch the exception, possibly perform some action and then rethrow the exception (not just the message)

Spring Hibernate - Could not obtain transaction-synchronized Session for current thread

In your xyz.DAOImpl.java

Do the following steps:

//Step-1: Set session factory

@Resource(name="sessionFactory")
private SessionFactory sessionFactory;

public void setSessionFactory(SessionFactory sf)
{
    this.sessionFactory = sf;
}

//Step-2: Try to get the current session, and catch the HibernateException exception.


//Step-3: If there are any HibernateException exception, then true to get openSession.

try 
{
    //Step-2: Implementation
    session = sessionFactory.getCurrentSession();
} 
catch (HibernateException e) 
{
    //Step-3: Implementation
    session = sessionFactory.openSession();
}

Sort dataGridView columns in C# ? (Windows Form)

You can control the data returned from SQL database by ordering the data returned:

orderby [Name]

If you execute the SQL query from your application, order the data returned. For example, make a function that calls the procedure or executes the SQL and give it a parameter that gets the orderby criteria. Because if you ordered the data returned from database it will consume time but order it since it's executed as you say that you want it to be ordered not from the UI you want it to be ordered in the run time so order it when executing the SQL query.

Android - border for button

create drawable/button_green.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle">
  <gradient
    android:startColor="#003000"
    android:centerColor="#006000"
    android:endColor="#003000"
    android:angle="270" />
  <corners android:radius="5dp" />
  <stroke android:width="2px" android:color="#007000" />
</shape>

and point it out as @drawable/button_green:

<Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:background="@drawable/button_green"
        android:text="Button" />

After submitting a POST form open a new window showing the result

Simplest working solution for flow window (tested at Chrome):

<form action='...' method=post target="result" onsubmit="window.open('','result','width=800,height=400');">
    <input name="..">
    ....
</form>

java comparator, how to sort by integer?

If you have access to the Java 8 Comparable API, Comparable.comparingToInt() may be of use. (See Java 8 Comparable Documentation).

For example, a Comparator<Dog> to sort Dog instances descending by age could be created with the following:

Comparable.comparingToInt(Dog::getDogAge).reversed();

The function take a lambda mapping T to Integer, and creates an ascending comparator. The chained function .reversed() turns the ascending comparator into a descending comparator.

Note: while this may not be useful for most versions of Android out there, I came across this question while searching for similar information for a non-Android Java application. I thought it might be useful to others in the same spot to see what I ended up settling on.

Simple Android RecyclerView example

Now you need 1 adapter for all RecyclerView

  • One adapter can be used in for all RecyclerView. So NO onBindViewHolder, No onCreateViewHolder handling.
  • No code for setting adapter from Java/Kotlin class. Check sample class.
  • You can set events and custom data for every list by using Binding Adapters.

screenshot

I show here setting two different RecyclerView by 1 adapter -

activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>

        <variable
            name="listOne"
            type="java.util.List"/>

        <variable
            name="listTwo"
            type="java.util.List"/>

        <variable
            name="onItemClickListenerOne"
            type="com.ks.nestedrecyclerbindingexample.callbacks.OnItemClickListener"/>

        <variable
            name="onItemClickListenerTwo"
            type="com.ks.nestedrecyclerbindingexample.callbacks.OnItemClickListener"/>

    </data>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <android.support.v7.widget.RecyclerView
            rvItemLayout="@{@layout/row_one}"
            rvList="@{listOne}"
            rvOnItemClick="@{onItemClickListenerOne}"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layoutManager="android.support.v7.widget.LinearLayoutManager"
            />

        <android.support.v7.widget.RecyclerView
            rvItemLayout="@{@layout/row_two}"
            rvList="@{listTwo}"
            rvOnItemClick="@{onItemClickListenerTwo}"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layoutManager="android.support.v7.widget.LinearLayoutManager"
            />

    </LinearLayout>

</layout>

You can see I pass list, item layout id and click listener from layout.

rvItemLayout="@{@layout/row_one}"
rvList="@{listOne}"
rvOnItemClick="@{onItemClickListenerOne}"

This custom attributes are created by BindingAdapter.

public class BindingAdapters {
    @BindingAdapter(value = {"rvItemLayout", "rvList", "rvOnItemClick"}, requireAll = false)
    public static void setRvAdapter(RecyclerView recyclerView, int rvItemLayout, List rvList, @Nullable OnItemClickListener onItemClickListener) {
        if (rvItemLayout != 0 && rvList != null && rvList.size() > 0)
            recyclerView.setAdapter(new GeneralAdapter(rvItemLayout, rvList, onItemClickListener));
    }
}

Now from Activity, you pass list, click listener like

HomeActivity.java

public class HomeActivity extends AppCompatActivity {
    ActivityHomeBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        binding = DataBindingUtil.setContentView(this, R.layout.activity_home);
        binding.setListOne(new ArrayList()); // pass your list or set list from response of API
        binding.setListTwo(new ArrayList());
        binding.setOnItemClickListenerOne(new OnItemClickListener() {
            @Override
            public void onItemClick(View view, Object object) {
                if (object instanceof ModelParent) {
                    // TODO: your action here
                }
            }
        });
        binding.setOnItemClickListenerTwo(new OnItemClickListener() {
            @Override
            public void onItemClick(View view, Object object) {
                if (object instanceof ModelChild) {
                    // TODO: your action here  
                }
            }
        });
    }
}

You don't want read too much, directly clone/download full example on from my github repo. And try it yourself.

You can see GeneralAdapter.java in above repo.

If you have problems while setting up data binding, please see this answer.

How to format a float in javascript?

The key here I guess is to round up correctly first, then you can convert it to String.

function roundOf(n, p) {
    const n1 = n * Math.pow(10, p + 1);
    const n2 = Math.floor(n1 / 10);
    if (n1 >= (n2 * 10 + 5)) {
        return (n2 + 1) / Math.pow(10, p);
    }
    return n2 / Math.pow(10, p);
}

// All edge cases listed in this thread
roundOf(95.345, 2); // 95.35
roundOf(95.344, 2); // 95.34
roundOf(5.0364342423, 2); // 5.04
roundOf(0.595, 2); // 0.60
roundOf(0.335, 2); // 0.34
roundOf(0.345, 2); // 0.35
roundOf(551.175, 2); // 551.18
roundOf(0.3445434, 2); // 0.34

Now you can safely format this value with toFixed(p). So with your specific case:

roundOf(0.3445434, 2).toFixed(2); // 0.34

How do I join two SQLite tables in my Android application?

You need rawQuery method.

Example:

private final String MY_QUERY = "SELECT * FROM table_a a INNER JOIN table_b b ON a.id=b.other_id WHERE b.property_id=?";

db.rawQuery(MY_QUERY, new String[]{String.valueOf(propertyId)});

Use ? bindings instead of putting values into raw sql query.

Open a new tab on button click in AngularJS

You should use the $location service

Angular docs:

Laravel Eloquent limit and offset

Try this sample code:

$art = Article::where('id',$article)->firstOrFail();

$products = $art->products->take($limit);

Uploading Laravel Project onto Web Server

In Laravel 5.x there is no paths.php

so you should edit public/index.php and change this lines in order to to pint to your bootstrap directory:

require __DIR__.’/../bootstrap/autoload.php’;

$app = require_once __DIR__.’/../bootstrap/app.php’;

for more information you can read this article.

Convert character to Date in R

You may be overcomplicating things, is there any reason you need the stringr package?

 df <- data.frame(Date = c("10/9/2009 0:00:00", "10/15/2009 0:00:00"))
 as.Date(df$Date, "%m/%d/%Y %H:%M:%S")

[1] "2009-10-09" "2009-10-15"

More generally and if you need the time component as well, use strptime:

strptime(df$Date, "%m/%d/%Y %H:%M:%S")

I'm guessing at what your actual data might look at from the partial results you give.

What is SELF JOIN and when would you use it?

You'd use a self-join on a table that "refers" to itself - e.g. a table of employees where managerid is a foreign-key to employeeid on that same table.

Example:

SELECT E.name, ME.name AS manager
FROM dbo.Employees E
LEFT JOIN dbo.Employees ME
ON ME.employeeid = E.managerid

Is Fortran easier to optimize than C for heavy calculations?

To some extent Fortran has been designed keeping compiler optimization in mind. The language supports whole array operations where compilers can exploit parallelism (specially on multi-core processors). For example,

Dense matrix multiplication is simply:

matmul(a,b)

L2 norm of a vector x is:

sqrt(sum(x**2))

Moreover statements such as FORALL, PURE & ELEMENTAL procedures etc. further help to optimize code. Even pointers in Fortran arent as flexible as C because of this simple reason.

The upcoming Fortran standard (2008) has co-arrays which allows you to easily write parallel code. G95 (open source) and compilers from CRAY already support it.

So yes Fortran can be fast simply because compilers can optimize/parallelize it better than C/C++. But again like everything else in life there are good compilers and bad compilers.

Efficient way to return a std::vector in c++

It's time I post an answer about RVO, me too...

If you return an object by value, the compiler often optimizes this so it doesn't get constructed twice, since it's superfluous to construct it in the function as a temporary and then copy it. This is called return value optimization: the created object will be moved instead of being copied.

Launch custom android application from android browser

Hey I got the solution. I did not set the category as "Default". Also I was using the Main activity for the intent Data. Now i am using a different activity for the intent data. Thanks for the help. :)

did you register the component correctly? For recursive components, make sure to provide the "name" option

Adding my scenario. Just in case someone has similar problem and not able to identify ACTUAL issue.

I was using vue splitpanes.

Previously it required only "Splitpanes", in latest version, they made another "Pane" component (as children of splitpanes).

Now thing is, if you don't register "Pane" component in latest version of splitpanes, it was showing error for "Splitpanes". as below.

[Vue warn]: Unknown custom element: <splitpanes> - did you register the component correctly? For recursive components, make sure to provide the "name" option.

Postgres: INSERT if does not exist already

Your column "hundred" seems to be defined as primary key and therefore must be unique which is not the case. The problem isn't with, it is with your data.

I suggest you insert an id as serial type to handly the primary key

How can I retrieve the remote git address of a repo?

If you have the name of the remote, you will be able with git 2.7 (Q4 2015), to use the new git remote get-url command:

git remote get-url origin

(nice pendant of git remote set-url origin <newurl>)

See commit 96f78d3 (16 Sep 2015) by Ben Boeckel (mathstuf).
(Merged by Junio C Hamano -- gitster -- in commit e437cbd, 05 Oct 2015)

remote: add get-url subcommand

Expanding insteadOf is a part of ls-remote --url and there is no way to expand pushInsteadOf as well.
Add a get-url subcommand to be able to query both as well as a way to get all configured urls.

Communication between tabs or windows

For those searching for a solution not based on jQuery, this is a plain JavaScript version of the solution provided by Thomas M:

window.addEventListener("storage", message_receive);

function message_broadcast(message) {
    localStorage.setItem('message',JSON.stringify(message));
}

function message_receive(ev) {
    if (ev.key == 'message') {
        var message=JSON.parse(ev.newValue);
    }
}

jQuery Button.click() event is triggered twice

This can as well be triggered by having both input and label inside the element with click listener.

You click on the label, which triggers a click event and as well another click event on the input for the label. Both events bubble to your element.

See this pen of a fancy CSS-only toggle: https://codepen.io/stepanh/pen/WaYzzO

Note: This is not jQuery specific, native listener is triggered 2x as well as shown in the pen.

android activity has leaked window com.android.internal.policy.impl.phonewindow$decorview Issue

The way I got around this issue is by not calling intent within a dialog. **** use syntax applicable to activity or fragment accordingly

@Override
public void onClick(DialogInterface dialog, int which) {
    checkvariable= true;
    getActivity().finish();
}

@Override
public void onStop() {
    super.onStop();
    if (checkvariable) {
        startActivity(intent); 
    }
}

Where can I download Spring Framework jars without using Maven?

Please edit to keep this list of mirrors current

I found this maven repo where you could download from directly a zip file containing all the jars you need.

Alternate solution: Maven

The solution I prefer is using Maven, it is easy and you don't have to download each jar alone. You can do it with the following steps:

  1. Create an empty folder anywhere with any name you prefer, for example spring-source

  2. Create a new file named pom.xml

  3. Copy the xml below into this file

  4. Open the spring-source folder in your console

  5. Run mvn install

  6. After download finished, you'll find spring jars in /spring-source/target/dependencies

    <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/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>spring-source-download</groupId>
      <artifactId>SpringDependencies</artifactId>
      <version>1.0</version>
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
      </properties>
      <dependencies>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>3.2.4.RELEASE</version>
        </dependency>
      </dependencies>
      <build>
        <plugins>
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.8</version>
            <executions>
              <execution>
                <id>download-dependencies</id>
                <phase>generate-resources</phase>
                <goals>
                  <goal>copy-dependencies</goal>
                </goals>
                <configuration>
                  <outputDirectory>${project.build.directory}/dependencies</outputDirectory>
                </configuration>
              </execution>
            </executions>
          </plugin>
        </plugins>
      </build>
    </project>
    

Also, if you need to download any other spring project, just copy the dependency configuration from its corresponding web page.

For example, if you want to download Spring Web Flow jars, go to its web page, and add its dependency configuration to the pom.xml dependencies, then run mvn install again.

<dependency>
  <groupId>org.springframework.webflow</groupId>
  <artifactId>spring-webflow</artifactId>
  <version>2.3.2.RELEASE</version>
</dependency>

Calling Web API from MVC controller

Why don't you simply move the code you have in the ApiController calls - DocumentsController to a class that you can call from both your HomeController and DocumentController. Pull this out into a class you call from both controllers. This stuff in your question:

// All code to find the files are here and is working perfectly...

It doesn't make sense to call a API Controller from another controller on the same website.

This will also simplify the code when you come back to it in the future you will have one common class for finding the files and doing that logic there...

TypeScript: correct way to do string equality?

The === is not for checking string equalit , to do so you can use the Regxp functions for example

if (x.match(y) === null) {
// x and y are not equal 
}

there is also the test function

Best way to concatenate List of String objects?

Using the Functional Java library, import these:

import static fj.pre.Monoid.stringMonoid;
import static fj.data.List.list;
import fj.data.List;

... then you can do this:

List<String> ss = list("foo", "bar", "baz");
String s = stringMonoid.join(ss, ", ");

Or, the generic way, if you don't have a list of Strings:

public static <A> String showList(List<A> l, Show<A> s) {
  return stringMonoid.join(l.map(s.showS_()), ", ");
}

How to center align the cells of a UICollectionView?

Here is my solution with a few assumptions:

  • there is only one section
  • left and right insets are equal
  • cell height is the same

Feel free to adjust to meet your needs.

Centered layout with variable cell width:

protocol HACenteredLayoutDelegate: UICollectionViewDataSource {
    func getCollectionView() -> UICollectionView
    func sizeOfCell(at index: IndexPath) -> CGSize
    func contentInsets() -> UIEdgeInsets
}

class HACenteredLayout: UICollectionViewFlowLayout {
    weak var delegate: HACenteredLayoutDelegate?
    private var cache = [UICollectionViewLayoutAttributes]()
    private var contentSize = CGSize.zero
    override var collectionViewContentSize: CGSize { return self.contentSize }

    required init(delegate: HACenteredLayoutDelegate) {
        self.delegate = delegate
        super.init()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }

    override func invalidateLayout() {
        cache.removeAll()
        super.invalidateLayout()
    }

    override func prepare() {
        if cache.isEmpty && self.delegate != nil && self.delegate!.collectionView(self.delegate!.getCollectionView(), numberOfItemsInSection: 0) > 0 {
            let insets = self.delegate?.contentInsets() ?? UIEdgeInsets.zero
            var rows: [(width: CGFloat, count: Int)] = [(0, 0)]
            let viewWidth: CGFloat = UIScreen.main.bounds.width
            var y = insets.top
            var unmodifiedIndexes = [IndexPath]()
            for itemNumber in 0 ..< self.delegate!.collectionView(self.delegate!.getCollectionView(), numberOfItemsInSection: 0) {
                let indexPath = IndexPath(item: itemNumber, section: 0)
                let cellSize = self.delegate!.sizeOfCell(at: indexPath)
                let potentialRowWidth = rows.last!.width + (rows.last!.count > 0 ? self.minimumInteritemSpacing : 0) + cellSize.width + insets.right + insets.left
                if potentialRowWidth > viewWidth {
                    let leftOverSpace = max((viewWidth - rows[rows.count - 1].width)/2, insets.left)
                    for i in unmodifiedIndexes {
                        self.cache[i.item].frame.origin.x += leftOverSpace
                    }
                    unmodifiedIndexes = []
                    rows.append((0, 0))
                    y += cellSize.height + self.minimumLineSpacing
                }
                unmodifiedIndexes.append(indexPath)
                let attribute = UICollectionViewLayoutAttributes(forCellWith: indexPath)
                rows[rows.count - 1].count += 1
                rows[rows.count - 1].width += rows[rows.count - 1].count > 1 ? self.minimumInteritemSpacing : 0
                attribute.frame = CGRect(x: rows[rows.count - 1].width, y: y, width: cellSize.width, height: cellSize.height)
                rows[rows.count - 1].width += cellSize.width
                cache.append(attribute)
            }
            let leftOverSpace = max((viewWidth - rows[rows.count - 1].width)/2, insets.left)
            for i in unmodifiedIndexes {
                self.cache[i.item].frame.origin.x += leftOverSpace
            }
            self.contentSize = CGSize(width: viewWidth, height: y + self.delegate!.sizeOfCell(at: IndexPath(item: 0, section: 0)).height + insets.bottom)
        }
    }

    override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]? {
        var layoutAttributes = [UICollectionViewLayoutAttributes]()

        for attributes in cache {
            if attributes.frame.intersects(rect) {
                layoutAttributes.append(attributes)
            }
        }
        return layoutAttributes
    }

    override func layoutAttributesForItem(at indexPath: IndexPath) -> UICollectionViewLayoutAttributes? {
        if indexPath.item < self.cache.count {
            return self.cache[indexPath.item]
        }
        return nil
    }
}

Result:

enter image description here

Convert a object into JSON in REST service by Spring MVC

Spring framework itself handles json conversion when controller is annotated properly.

For eg:

   @PutMapping(produces = {"application/json"})
        @ResponseBody
        public UpdateResponse someMethod(){ //do something
return UpdateResponseInstance;
}

Here spring internally converts the UpdateResponse object to corresponding json string and returns it. In order to do it spring internally uses Jackson library.

If you require a json representation of a model object anywhere apart from controller then you can use objectMapper provided by jackson. Model should be properly annotated for this to work.

Eg:

ObjectMapper mapper = new ObjectMapper();
SomeModelClass someModelObject = someModelRepository.findById(idValue).get();
mapper.writeValueAsString(someModelObject);

How to access parameters in a Parameterized Build?

Use double quotes instead of single quotes

e.g. echo "$foo" as opposed to echo '$foo'

If you configured your pipeline to accept parameters using the Build with Parameters option, those parameters are accessible as Groovy variables of the same name. See Here.

You can drop the semicolon (;), drop the parentheses (( and )), and use single quotes (') instead of double (") if you do not need to perform variable substitutions. See Here. This clued me into my problem, though I've found that only the double (") is required to make it work.

How to let an ASMX file output JSON

Are you calling the web service from client script or on the server side?

You may find sending a content type header to the server will help, e.g.

'application/json; charset=utf-8'

On the client side, I use prototype client side library and there is a contentType parameter when making an Ajax call where you can specify this. I think jQuery has a getJSON method.

What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?

If you are running cmake to generate SomeLib yourself (say as part of a superbuild), consider using the User Package Registry. This requires no hard-coded paths and is cross-platform. On Windows (including mingw64) it works via the registry. If you examine how the list of installation prefixes is constructed by the CONFIG mode of the find_packages() command, you'll see that the User Package Registry is one of elements.

Brief how-to

Associate the targets of SomeLib that you need outside of that external project by adding them to an export set in the CMakeLists.txt files where they are created:

add_library(thingInSomeLib ...)
install(TARGETS thingInSomeLib Export SomeLib-export DESTINATION lib)

Create a XXXConfig.cmake file for SomeLib in its ${CMAKE_CURRENT_BUILD_DIR} and store this location in the User Package Registry by adding two calls to export() to the CMakeLists.txt associated with SomeLib:

export(EXPORT SomeLib-export NAMESPACE SomeLib:: FILE SomeLibConfig.cmake) # Create SomeLibConfig.cmake
export(PACKAGE SomeLib)                                                    # Store location of SomeLibConfig.cmake

Issue your find_package(SomeLib REQUIRED) commmand in the CMakeLists.txt file of the project that depends on SomeLib without the "non-cross-platform hard coded paths" tinkering with the CMAKE_MODULE_PATH.

When it might be the right approach

This approach is probably best suited for situations where you'll never use your software downstream of the build directory (e.g., you're cross-compiling and never install anything on your machine, or you're building the software just to run tests in the build directory), since it creates a link to a .cmake file in your "build" output, which may be temporary.

But if you're never actually installing SomeLib in your workflow, calling EXPORT(PACKAGE <name>) allows you to avoid the hard-coded path. And, of course, if you are installing SomeLib, you probably know your platform, CMAKE_MODULE_PATH, etc, so @user2288008's excellent answer will have you covered.

Eclipse CDT project built but "Launch Failed. Binary Not Found"

For what it's worth, I had this problem - and the cause was invalid DWARF 3 info in the binary in the selected project (which didn't have any runnable binaries).

The way it work was something like this: I had two projects Main and Library. Main depended on the Library project and the former had an executable, while the latter just produced a static library (that Main linked against).

My run option was set to "Run/Debug -> Launch" setting was set to "launch current, otherwise last" as follows (see bottom right):

Run/Debug settings

If I had the Main project selected, everything would work fine: it would launch the main project. If I had the Library project selected1 it would fail with the error message given by the OP. The reason seemed to be this: since I had the Library project selected, the PE scanner would scan the binary files in the project to see if any were launchable, and because scanning was failing due to this bug the error message popped up before it ever got to "Launch the previously launched application".

I could work around it by:

  1. Making sure the project I wanted to launch was selected, or ...
  2. Changing compilers to one that made DWARF info that Eclipse could parse without failure, or ...
  3. Selecting "Always launch the previously launched application" in the Run/Debug settings - although it might not be your preferred mode of operation.

1 I wouldn't usually select the project directly, of course, it would be indirectly selected because I was working in one of the source files it contained.

Error: ANDROID_HOME is not set and "android" command not in your PATH. You must fulfill at least one of these conditions.

Android path set in linux:

$export ANDROID_HOME=/usr/lib/android-sdk-linux
$export PATH=$PATH:$ANDROID_HOME/tools
$export PATH=$PATH:$ANDROID_HOME/platforms-tools

than

$cordova run android

Extract Google Drive zip from Google colab notebook

Mount GDrive:

from google.colab import drive
drive.mount('/content/gdrive')

Open the link -> copy authorization code -> paste that into the prompt and press "Enter"

Check GDrive access:

!ls "/content/gdrive/My Drive"

Unzip (q stands for "quiet") file from GDrive:

!unzip -q "/content/gdrive/My Drive/dataset.zip"

Explain ExtJS 4 event handling

Let's start by describing DOM elements' event handling.

DOM node event handling

First of all you wouldn't want to work with DOM node directly. Instead you probably would want to utilize Ext.Element interface. For the purpose of assigning event handlers, Element.addListener and Element.on (these are equivalent) were created. So, for example, if we have html:

<div id="test_node"></div>

and we want add click event handler.
Let's retrieve Element:

var el = Ext.get('test_node');

Now let's check docs for click event. It's handler may have three parameters:

click( Ext.EventObject e, HTMLElement t, Object eOpts )

Knowing all this stuff we can assign handler:

//       event name      event handler
el.on(    'click'        , function(e, t, eOpts){
  // handling event here
});

Widgets event handling

Widgets event handling is pretty much similar to DOM nodes event handling.

First of all, widgets event handling is realized by utilizing Ext.util.Observable mixin. In order to handle events properly your widget must containg Ext.util.Observable as a mixin. All built-in widgets (like Panel, Form, Tree, Grid, ...) has Ext.util.Observable as a mixin by default.

For widgets there are two ways of assigning handlers. The first one - is to use on method (or addListener). Let's for example create Button widget and assign click event to it. First of all you should check event's docs for handler's arguments:

click( Ext.button.Button this, Event e, Object eOpts )

Now let's use on:

var myButton = Ext.create('Ext.button.Button', {
  text: 'Test button'
});
myButton.on('click', function(btn, e, eOpts) {
  // event handling here
  console.log(btn, e, eOpts);
});

The second way is to use widget's listeners config:

var myButton = Ext.create('Ext.button.Button', {
  text: 'Test button',
  listeners : {
    click: function(btn, e, eOpts) {
      // event handling here
      console.log(btn, e, eOpts);
    }
  }
});

Notice that Button widget is a special kind of widgets. Click event can be assigned to this widget by using handler config:

var myButton = Ext.create('Ext.button.Button', {
  text: 'Test button',
  handler : function(btn, e, eOpts) {
    // event handling here
    console.log(btn, e, eOpts);
  }
});

Custom events firing

First of all you need to register an event using addEvents method:

myButton.addEvents('myspecialevent1', 'myspecialevent2', 'myspecialevent3', /* ... */);

Using the addEvents method is optional. As comments to this method say there is no need to use this method but it provides place for events documentation.

To fire your event use fireEvent method:

myButton.fireEvent('myspecialevent1', arg1, arg2, arg3, /* ... */);

arg1, arg2, arg3, /* ... */ will be passed into handler. Now we can handle your event:

myButton.on('myspecialevent1', function(arg1, arg2, arg3, /* ... */) {
  // event handling here
  console.log(arg1, arg2, arg3, /* ... */);
});

It's worth mentioning that the best place for inserting addEvents method call is widget's initComponent method when you are defining new widget:

Ext.define('MyCustomButton', {
  extend: 'Ext.button.Button',
  // ... other configs,
  initComponent: function(){
    this.addEvents('myspecialevent1', 'myspecialevent2', 'myspecialevent3', /* ... */);
    // ...
    this.callParent(arguments);
  }
});
var myButton = Ext.create('MyCustomButton', { /* configs */ });

Preventing event bubbling

To prevent bubbling you can return false or use Ext.EventObject.preventDefault(). In order to prevent browser's default action use Ext.EventObject.stopPropagation().

For example let's assign click event handler to our button. And if not left button was clicked prevent default browser action:

myButton.on('click', function(btn, e){
  if (e.button !== 0)
    e.preventDefault();
});

CSS table column autowidth

use auto and min or max width like this:

td {
max-width:50px;
width:auto;
min-width:10px;
}

how to write value into cell with vba code without auto type conversion?

This is probably too late, but I had a similar problem with dates that I wanted entered into cells from a text variable. Inevitably, it converted my variable text value to a date. What I finally had to do was concatentate a ' to the string variable and then put it in the cell like this:

prvt_rng_WrkSht.Cells(prvt_rng_WrkSht.Rows.Count, cnst_int_Col_Start_Date).Formula = "'" & _ 
    param_cls_shift.Start_Date (string property of my class) 

First Heroku deploy failed `error code=H10`

In my case, I forgot to set database env for deployment. you can set env by this command (I'm using mLab for MongoDB server)

heroku config:set MONGO_URI='mongodb://address'

Center align "span" text inside a div

If you know the width of the span you could just stuff in a left margin.

Try this:

.center { text-align: center}
div.center span { display: table; }

Add the "center: class to your .

If you want some spans centered, but not others, replace the "div.center span" in your style sheet to a class (e.g "center-span") and add that class to the span.

Parse json string to find and element (key / value)

You want to convert it to an object first and then access normally making sure to cast it.

JObject obj = JObject.Parse(json);
string name = (string) obj["Name"];

HTML: how to make 2 tables with different CSS

Of course, just assign seperate css classes to both tables.

<table class="style1"></table>
<table class="style2"></table>

.css

table.style1 { //your css here}
table.style2 { //your css here}

Get column value length, not column max length of value

LENGTH() does return the string length (just verified). I suppose that your data is padded with blanks - try

SELECT typ, LENGTH(TRIM(t1.typ))
FROM AUTA_VIEW t1;

instead.

As OraNob mentioned, another cause could be that CHAR is used in which case LENGTH() would also return the column width, not the string length. However, the TRIM() approach also works in this case.

WaitAll vs WhenAll

Task.WaitAll blocks the current thread until everything has completed.

Task.WhenAll returns a task which represents the action of waiting until everything has completed.

That means that from an async method, you can use:

await Task.WhenAll(tasks);

... which means your method will continue when everything's completed, but you won't tie up a thread to just hang around until that time.

Reading Data From Database and storing in Array List object

Instead ofnull, use CustomerDTO customers =new CustomerDTO()`;

CustomerDTO customer = null;


  private static List<Author> getAllAuthors() {
    initConnection();
    List<Author> authors = new ArrayList<Author>();
    Author author = new Author();
    try {
        stmt = (Statement) conn.createStatement();
        String str = "SELECT * FROM author";
        rs = (ResultSet) stmt.executeQuery(str);

        while (rs.next()) {
            int id = rs.getInt("nAuthorId");
            String name = rs.getString("cAuthorName");
            author.setnAuthorId(id);
            author.setcAuthorName(name);
            authors.add(author);
            System.out.println(author.getnAuthorId() + " - " + author.getcAuthorName());
        }
        rs.close();
        closeConnection();
    } catch (Exception e) {
        System.out.println(e);
    }
    return authors;
}

How to export iTerm2 Profiles

It isn't the most obvious workflow. You first have to click "Load preferences from a custom folder or URL". Select the folder you want them saved in; I keep an appsync folder in Dropbox for these sorts of things. Once you have selected the folder, you can click "Save settings to Folder". On a new machine / fresh install of your OS, you can now load these settings from the folder. At first I was sure that loading preferences would wipe out my previous settings, but it didn't.

What is the difference between char, nchar, varchar, and nvarchar in SQL Server?

nchar requires more space than nvarchar.

eg,

A nchar(100) will always store 100 characters even if you only enter 5, the remaining 95 chars will be padded with spaces. Storing 5 characters in a nvarchar(100) will save 5 characters.

How do I test a website using XAMPP?

Make a new folder inside htdocs and access it in browser.Like this or this. Always start Apache when you start working or check whether it has started (in Control panel of xampp).

Java 8 lambda Void argument

Add a static method inside your functional interface

package example;

interface Action<T, U> {
       U execute(T t);
       static  Action<Void,Void> invoke(Runnable runnable){
           return (v) -> {
               runnable.run();
                return null;
            };         
       }
    }

public class Lambda {


    public static void main(String[] args) {

        Action<Void, Void> a = Action.invoke(() -> System.out.println("Do nothing!"));
        Void t = null;
        a.execute(t);
    }

}

Output

Do nothing!

No resource identifier found for attribute '...' in package 'com.app....'

I just changed:

xmlns:app="http://schemas.android.com/apk/res-auto" 

to:

xmlns:app="http://schemas.android.com/apk/lib/com.app.chasebank"

and it stopped generating the errors, com.app.chasebank is the name of the package. It should work according to this Stack Overflow : No resource identifier found for attribute 'adSize' in package 'com.google.example' main.xml

Convert DateTime to TimeSpan

You can just use the TimeOfDay property of date time, which is TimeSpan type:

DateTime.TimeOfDay

This property has been around since .NET 1.1

More information: http://msdn.microsoft.com/en-us/library/system.datetime.timeofday(v=vs.110).aspx

Package Manager Console Enable-Migrations CommandNotFoundException only in a specific VS project

run as administrator vs =>> Open the project

-> On the Package manager Console

Enable-migration
add-migration migrationName
update-database

How do I concatenate two strings in C?

Without GNU extension:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    const char str1[] = "First";
    const char str2[] = "Second";
    char *res;

    res = malloc(strlen(str1) + strlen(str2) + 1);
    if (!res) {
        fprintf(stderr, "malloc() failed: insufficient memory!\n");
        return EXIT_FAILURE;
    }

    strcpy(res, str1);
    strcat(res, str2);

    printf("Result: '%s'\n", res);
    free(res);
    return EXIT_SUCCESS;
}

Alternatively with GNU extension:

#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(void) {
    const char str1[] = "First";
    const char str2[] = "Second";
    char *res;

    if (-1 == asprintf(&res, "%s%s", str1, str2)) {
        fprintf(stderr, "asprintf() failed: insufficient memory!\n");
        return EXIT_FAILURE;
    }

    printf("Result: '%s'\n", res);
    free(res);
    return EXIT_SUCCESS;
}

See malloc, free and asprintf for more details.

What are the differences between Deferred, Promise and Future in JavaScript?

A Promise represents a proxy for a value not necessarily known when the promise is created. It allows you to associate handlers to an asynchronous action's eventual success value or failure reason. This lets asynchronous methods return values like synchronous methods: instead of the final value, the asynchronous method returns a promise of having a value at some point in the future.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

The deferred.promise() method allows an asynchronous function to prevent other code from interfering with the progress or status of its internal request. The Promise exposes only the Deferred methods needed to attach additional handlers or determine the state (then, done, fail, always, pipe, progress, state and promise), but not ones that change the state (resolve, reject, notify, resolveWith, rejectWith, and notifyWith).

If target is provided, deferred.promise() will attach the methods onto it and then return this object rather than create a new one. This can be useful to attach the Promise behavior to an object that already exists.

If you are creating a Deferred, keep a reference to the Deferred so that it can be resolved or rejected at some point. Return only the Promise object via deferred.promise() so other code can register callbacks or inspect the current state.

Simply we can say that a Promise represents a value that is not yet known where as a Deferred represents work that is not yet finished.


enter image description here

How to create an Array, ArrayList, Stack and Queue in Java?

Without more details as to what the question is exactly asking, I am going to answer the title of the question,

Create an Array:

String[] myArray = new String[2];
int[] intArray = new int[2];

// or can be declared as follows
String[] myArray = {"this", "is", "my", "array"};
int[] intArray = {1,2,3,4};

Create an ArrayList:

ArrayList<String> myList = new ArrayList<String>();
myList.add("Hello");
myList.add("World");

ArrayList<Integer> myNum = new ArrayList<Integer>();
myNum.add(1);
myNum.add(2);

This means, create an ArrayList of String and Integer objects. You cannot use int because thats a primitive data types, see the link for a list of primitive data types.

Create a Stack:

Stack myStack = new Stack();
// add any type of elements (String, int, etc..)
myStack.push("Hello");
myStack.push(1);

Create an Queue: (using LinkedList)

Queue<String> myQueue = new LinkedList<String>();
Queue<Integer> myNumbers = new LinkedList<Integer>();
myQueue.add("Hello");
myQueue.add("World");
myNumbers.add(1);
myNumbers.add(2);

Same thing as an ArrayList, this declaration means create an Queue of String and Integer objects.


Update:

In response to your comment from the other given answer,

i am pretty confused now, why are using string. and what does <String> means

We are using String only as a pure example, but you can add any other object, but the main point is that you use an object not a primitive type. Each primitive data type has their own primitive wrapper class, see link for list of primitive data type's wrapper class.

I have posted some links to explain the difference between the two, but here are a list of primitive types

  • byte
  • short
  • char
  • int
  • long
  • boolean
  • double
  • float

Which means, you are not allowed to make an ArrayList of integer's like so:

ArrayList<int> numbers = new ArrayList<int>(); 
           ^ should be an object, int is not an object, but Integer is!
ArrayList<Integer> numbers = new ArrayList<Integer>();
            ^ perfectly valid

Also, you can use your own objects, here is my Monster object I created,

public class Monster {
   String name = null;
   String location = null;
   int age = 0;

public Monster(String name, String loc, int age) { 
   this.name = name;
   this.loc = location;
   this.age = age;
 }

public void printDetails() {
   System.out.println(name + " is from " + location +
                                     " and is " + age + " old.");
 }
} 

Here we have a Monster object, but now in our Main.java class we want to keep a record of all our Monster's that we create, so let's add them to an ArrayList

public class Main {
    ArrayList<Monster> myMonsters = new ArrayList<Monster>();

public Main() {
    Monster yetti = new Monster("Yetti", "The Mountains", 77);
    Monster lochness = new Monster("Lochness Monster", "Scotland", 20);

    myMonsters.add(yetti); // <-- added Yetti to our list
    myMonsters.add(lochness); // <--added Lochness to our list
  
    for (Monster m : myMonsters) {
        m.printDetails();
     }
   }

public static void main(String[] args) {
    new Main();
 }
}

(I helped my girlfriend's brother with a Java game, and he had to do something along those lines as well, but I hope the example was well demonstrated)

Getting Access Denied when calling the PutObject operation with bucket-level permission

I was having the same error message for a mistake I made: Make sure you use a correct s3 uri such as: s3://my-bucket-name/

(If my-bucket-name is at the root of your aws s3 obviously)

I insist on that because when copy pasting the s3 bucket from your browser you get something like https://s3.console.aws.amazon.com/s3/buckets/my-bucket-name/?region=my-aws-regiontab=overview

Thus I made the mistake to use s3://buckets/my-bucket-name which raises:

An error occurred (AccessDenied) when calling the PutObject operation: Access Denied

CASE WHEN statement for ORDER BY clause

Another simple example from here..

SELECT * FROM dbo.Employee
ORDER BY 
 CASE WHEN Gender='Male' THEN EmployeeName END Desc,
 CASE WHEN Gender='Female' THEN Country END ASC

how to convert image to byte array in java?

If you are using JDK 7 you can use the following code..

import java.nio.file.Files;
import java.io.File;

File fi = new File("myfile.jpg");
byte[] fileContent = Files.readAllBytes(fi.toPath())

URL for public Amazon S3 bucket

The URL structure you're referring to is called the REST endpoint, as opposed to the Web Site Endpoint.


Note: Since this answer was originally written, S3 has rolled out dualstack support on REST endpoints, using new hostnames, while leaving the existing hostnames in place. This is now integrated into the information provided, below.


If your bucket is really in the us-east-1 region of AWS -- which the S3 documentation formerly referred to as the "US Standard" region, but was subsequently officially renamed to the "U.S. East (N. Virginia) Region" -- then http://s3-us-east-1.amazonaws.com/bucket/ is not the correct form for that endpoint, even though it looks like it should be. The correct format for that region is either http://s3.amazonaws.com/bucket/ or http://s3-external-1.amazonaws.com/bucket/

The format you're using is applicable to all the other S3 regions, but not US Standard US East (N. Virginia) [us-east-1].

S3 now also has dual-stack endpoint hostnames for the REST endpoints, and unlike the original endpoint hostnames, the names of these have a consistent format across regions, for example s3.dualstack.us-east-1.amazonaws.com. These endpoints support both IPv4 and IPv6 connectivity and DNS resolution, but are otherwise functionally equivalent to the existing REST endpoints.

If your permissions and configuration are set up such that the web site endpoint works, then the REST endpoint should work, too.

However... the two endpoints do not offer the same functionality.

Roughly speaking, the REST endpoint is better-suited for machine access and the web site endpoint is better suited for human access, since the web site endpoint offers friendly error messages, index documents, and redirects, while the REST endpoint doesn't. On the other hand, the REST endpoint offers HTTPS and support for signed URLs, while the web site endpoint doesn't.

Choose the correct type of endpoint (REST or web site) for your application:

http://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteEndpoints.html#WebsiteRestEndpointDiff


¹ s3-external-1.amazonaws.com has been referred to as the "Northern Virginia endpoint," in contrast to the "Global endpoint" s3.amazonaws.com. It was unofficially possible to get read-after-write consistency on new objects in this region if the "s3-external-1" hostname was used, because this would send you to a subset of possible physical endpoints that could provide that functionality. This behavior is now officially supported on this endpoint, so this is probably the better choice in many applications. Previously, s3-external-2 had been referred to as the "Pacific Northwest endpoint" for US-Standard, though it is now a CNAME in DNS for s3-external-1 so s3-external-2 appears to have no purpose except backwards-compatibility.

Is there a limit on number of tcp/ip connections between machines on linux?

There is a limit, yes. See ulimit.

Also you need to consider the TIMED_WAIT state. Once a TCP socket is closed (by default) the port remains occupied in TIMED_WAIT status for 2 minutes. This value is tunable. This will also "run you out of sockets" even though they are closed.

Run netstat to see the TIMED_WAIT stuff in action.

P.S. The reason for TIMED_WAIT is to handle the case of packets arriving after the socket is closed. This can happen because packets are delayed or the other side just doesn't know that the socket has been closed yet. This allows the OS to silently drop those packets without a chance of "infecting" a different, unrelated socket connection.

ggplot legends - change labels, order and title

You need to do two things:

  1. Rename and re-order the factor levels before the plot
  2. Rename the title of each legend to the same title

The code:

dtt$model <- factor(dtt$model, levels=c("mb", "ma", "mc"), labels=c("MBB", "MAA", "MCC"))

library(ggplot2)
ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
  geom_ribbon(alpha = 0.35, linetype=0)+ 
  geom_line(aes(linetype=model), size = 1) +       
  geom_point(aes(shape=model), size=4)  +      
  theme(legend.position=c(.6,0.8)) +
  theme(legend.background = element_rect(colour = 'black', fill = 'grey90', size = 1, linetype='solid')) +
  scale_linetype_discrete("Model 1") +
  scale_shape_discrete("Model 1") +
  scale_colour_discrete("Model 1")

enter image description here

However, I think this is really ugly as well as difficult to interpret. It's far better to use facets:

ggplot(dtt, aes(x=year, y=V, group = model, colour = model, ymin = lower, ymax = upper)) +
  geom_ribbon(alpha=0.2, colour=NA)+ 
  geom_line() +       
  geom_point()  +      
  facet_wrap(~model)

enter image description here

Run-time error '1004' - Method 'Range' of object'_Global' failed

When you reference Range like that it's called an unqualified reference because you don't specifically say which sheet the range is on. Unqualified references are handled by the "_Global" object that determines which object you're referring to and that depends on where your code is.

If you're in a standard module, unqualified Range will refer to Activesheet. If you're in a sheet's class module, unqualified Range will refer to that sheet.

inputTemplateContent is a variable that contains a reference to a range, probably a named range. If you look at the RefersTo property of that named range, it likely points to a sheet other than the Activesheet at the time the code executes.

The best way to fix this is to avoid unqualified Range references by specifying the sheet. Like

With ThisWorkbook.Worksheets("Template")
    .Range(inputTemplateHeader).Value = NO_ENTRY
    .Range(inputTemplateContent).Value = NO_ENTRY
End With

Adjust the workbook and worksheet references to fit your particular situation.

How to disable a input in angular2

can use simply like

     <input [(ngModel)]="model.name" disabled="disabled"

I got it like this way. so i prefer.

Call an overridden method from super class in typescript

The order of execution is:

  1. A's constructor
  2. B's constructor

The assignment occurs in B's constructor after A's constructor—_super—has been called:

function B() {
    _super.apply(this, arguments);   // MyvirtualMethod called in here
    this.testString = "Test String"; // testString assigned here
}

So the following happens:

var b = new B();     // undefined
b.MyvirtualMethod(); // "Test String"

You will need to change your code to deal with this. For example, by calling this.MyvirtualMethod() in B's constructor, by creating a factory method to create the object and then execute the function, or by passing the string into A's constructor and working that out somehow... there's lots of possibilities.

why I can't get value of label with jquery and javascript?

Label's aren't form elements. They don't have a value. They have innerHTML and textContent.

Thus,

$('#telefon').html() 
// or
$('#telefon').text()

or

var telefon = document.getElementById('telefon');
telefon.innerHTML;

If you are starting with your form element, check out the labels list of it. That is,

var el = $('#myformelement');
var label = $( el.prop('labels') );
// label.html();
// el.val();
// blah blah blah you get the idea

Pass props in Link react-router

Route:

<Route state={this.state} exact path="/customers/:id" render={(props) => <PageCustomer {...props} state={this.state} />} />

And then can access params in your PageCustomer component like this: this.props.match.params.id.

For example an api call in PageCustomer component:

axios({
   method: 'get',
   url: '/api/customers/' + this.props.match.params.id,
   data: {},
   headers: {'X-Requested-With': 'XMLHttpRequest'}
 })

Delete an element from a dictionary

I think your solution is best way to do it. But if you want another solution, you can create a new dictionary with using the keys from old dictionary without including your specified key, like this:

>>> a
{0: 'zero', 1: 'one', 2: 'two', 3: 'three'}
>>> {i:a[i] for i in a if i!=0}
{1: 'one', 2: 'two', 3: 'three'}

ios simulator: how to close an app

For iOS 7 & above:

  • shift+command+H twice to simulate the double tap of home button
  • swipe your app's screenshot upward to close it

You'll see screenshots representing the apps suspended on your device - those screenshots respond to touch events. Swiping is the gesture you'll make to "fling" the screenshot off of the screen. Note that on machines where your mouse is intended to represent your finger, you'll click and swipe as if it is your finger tapping and making the gesture.

How to convert a string to an integer in JavaScript?

we can use +(stringOfNumber) instead of using parseInt(stringOfNumber)

Ex: +("21") returns int of 21 like the parseInt("21").

we can use this unary "+" operator for parsing float too...

What is a "slug" in Django?

slug

A short label for something, containing only letters, numbers, underscores or hyphens. They’re generally used in URLs. For example, in a typical blog entry URL:

https://www.djangoproject.com/weblog/2008/apr/12/spring/ the last bit (spring) is the slug.

Add a Progress Bar in WebView

You can try this code into your activity

    private void startWebView(WebView webView,String url) {
 webView.setWebViewClient(new WebViewClient() {
            ProgressDialog progressDialog;

            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                view.loadUrl(url);
                return false;
            }

            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                super.onPageStarted(view, url, favicon);
            }

            public void onLoadResource (WebView view, String url) {

                    if (progressDialog == null) {
                        progressDialog = new ProgressDialog(SponceredDetailsActivity.this);
                        progressDialog.setMessage("Loading...");
                        progressDialog.show();
                    }

            }
            public void onPageFinished(WebView view, String url) {
                try{
                    if (progressDialog.isShowing()) {
                        progressDialog.dismiss();
                        progressDialog = null;
                    }

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

        });

        webView.getSettings().setJavaScriptEnabled(true);
        webView.loadUrl(url);
    }

Call this method using this way:

startWebView(web_view,"Your Url");

Sometimes if URL is dead it will redirected and it will come to onLoadResource() before onPageFinished method. For this reason progress bar will not dismis. To solve this issue see my this Answer.

Thanks :)

Can't ping a local VM from the host

try to drop the firewall on your laptop and see if there is difference. Maybe Your laptop is firewall blocking some broadcasts that prevents local network name resolution.

How to add google-play-services.jar project dependency so my project will run and present map

The quick start guide that keyboardsurfer references will work if you need to get your project to build properly, but it leaves you with a dummy google-play-services project in your Eclipse workspace, and it doesn't properly link Eclipse to the Google Play Services Javadocs.

Here's what I did instead:

  1. Install the Google Play Services SDK using the instructions in the Android Maps V2 Quick Start referenced above, or the instructions to Setup Google Play Services SDK, but do not follow the instructions to add Google Play Services into your project.

  2. Right click on the project in the Package Explorer, select Properties to open the properties for your project.

  3. (Only if you already followed the instructions in the quick start guide!) Remove the dependency on the google-play-services project:

    • Click on the Android category and remove the reference to the google-play-services project.

    • Click on the Java Build Path category, then the Projects tab and remove the reference to the google-play-services project.

  4. Click on the Java Build Path category, then the Libraries tab.

  5. Click Add External JARs... and select the google-play-services.jar file. This should be in [Your ADT directory]\sdk\extras\google\google_play_services\libproject\google-play-services_lib\libs.

  6. Click on the arrow next to the new google-play-services.jar entry, and select the Javadoc Location item.

  7. Click Edit... and select the folder containing the Google Play Services Javadocs. This should be in [Your ADT directory]\sdk\extras\google\google_play_services\docs\reference.

  8. Still in the Java Build Path category, click on the Order and Export tab. Check the box next to the google-play-services.jar entry.

  9. Click OK to save your project properties.

Your project should now have access to the Google Play Services library, and the Javadocs should display properly in Eclipse.

Path of currently executing powershell script

For PowerShell 3.0 users - following works for both modules and script files:

function Get-ScriptDirectory {
    Split-Path -parent $PSCommandPath
}

Single TextView with multiple colored text

You can prints lines with multiple colors without HTML as:

TextView textView = (TextView) findViewById(R.id.mytextview01);
Spannable word = new SpannableString("Your message");        

word.setSpan(new ForegroundColorSpan(Color.BLUE), 0, word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

textView.setText(word);
Spannable wordTwo = new SpannableString("Your new message");        

wordTwo.setSpan(new ForegroundColorSpan(Color.RED), 0, wordTwo.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
textView.append(wordTwo);

How to apply Hovering on html area tag?

for complete this script , the function for draw circle ,

    function drawCircle(coordon)
    {
        var coord = coordon.split(',');

        var c = document.getElementById("myCanvas");
        var hdc = c.getContext("2d");
        hdc.beginPath();

        hdc.arc(coord[0], coord[1], coord[2], 0, 2 * Math.PI);
        hdc.stroke();
    }

How can I use jQuery to make an input readonly?

Perhaps it's meaningful to also add that

$('#fieldName').prop('readonly',false);

can be used as a toggle option..

Xampp-mysql - "Table doesn't exist in engine" #1932

For me I removed whole data folder from xampp\mysql\ and pasted data folder of previous one here which solved my problem...

Exit/save edit to sudoers file? Putty SSH

#UBUNTU20

if you are opening this file as root, then type

root# visudo

the file will be opened, go to the line where you want to add/modifiy anything simply without any insert or i button pressed.

press ctrl + O
press ctrl + x
press enter

Changing the color of a clicked table row using jQuery

.highlight { background-color: papayawhip; }

$("#table tr").click(function() {    
 $("#table tr").removeClass("highlight");
            $(this).addClass("highlight");
});

How to print a string in C++

#include <iostream>
std::cout << someString << "\n";

or

printf("%s\n",someString.c_str());

What is InputStream & Output Stream? Why and when do we use them?

Stream: In laymen terms stream is data , most generic stream is binary representation of data.

Input Stream : If you are reading data from a file or any other source , stream used is input stream. In a simpler terms input stream acts as a channel to read data.

Output Stream : If you want to read and process data from a source (file etc) you first need to save the data , the mean to store data is output stream .

How to duplicate a git repository? (without forking)

I have noticed some of the other answers here use a bare clone and then mirror push to the new repository, however this does not work for me and when I open the new repository after that, the files look mixed up and not as I expect.

Here is a solution that definitely works for copying the files, although it does not preserve the original repository's revision history.

  1. git clone the repository onto your local machine.
  2. cd into the project directory and then run rm -rf .git to remove all the old git metadata including commit history, etc.
  3. Initialize a fresh git repository by running git init.
  4. Run git add . ; git commit -am "Initial commit" - Of course you can call this commit what you want.
  5. Set the origin to your new repository git remote add origin https://github.com/user/repo-name (replace the url with the url to your new repository)
  6. Push it to your new repository with git push origin master.

Check file uploaded is in csv format

the mime type might not be text/csv some systems can read/save them different. (for example sometimes IE sends .csv files as application/vnd.ms-excel) so you best bet would be to build an array of allowed values and test against that, then find all possible values to test against.

$mimes = array('application/vnd.ms-excel','text/plain','text/csv','text/tsv');
if(in_array($_FILES['file']['type'],$mimes)){
  // do something
} else {
  die("Sorry, mime type not allowed");
}

if you wished you could add a further check if mime is returned as text/plain you could run a preg_match to make sure it has enough commas in it to be a csv.

Why is using onClick() in HTML a bad practice?

With very large JavaScript applications, programmers are using more encapsulation of code to avoid polluting the global scope. And to make a function available to the onClick action in an HTML element, it has to be in the global scope.

You may have seen JS files that look like this...

(function(){
    ...[some code]
}());

These are Immediately Invoked Function Expressions (IIFEs) and any function declared within them will only exist within their internal scope.

If you declare function doSomething(){} within an IIFE, then make doSomething() an element's onClick action in your HTML page, you'll get an error.

If, on the other hand, you create an eventListener for that element within that IIFE and call doSomething() when the listener detects a click event, you're good because the listener and doSomething() share the IIFE's scope.

For little web apps with a minimal amount of code, it doesn't matter. But if you aspire to write large, maintainable codebases, onclick="" is a habit that you should work to avoid.