I've not used it, but SendKeys may do what you want.

Use SendKeys to send keystrokes and keystroke combinations to the active application. This class cannot be instantiated. To send a keystroke to a class and immediately continue with the flow of your program, use Send. To wait for any processes started by the keystroke, use SendWait.

System.Windows.Forms.SendKeys.Send("A");
System.Windows.Forms.SendKeys.Send("{ENTER}");

Microsoft has some more usage examples here.

There is no pure CSS solution to this classical problem.

If you want to achieve this, you have two solutions:

• Using a table (ugly, non semantic, but the only way to vertically align things that are not a single line of text)
• Listening to window.resize and absolute positionning

EDIT: when I say that there is no solution, I take as an hypothesis that you don't know in advance the size of the block to center. If you know it, paislee's solution is very good

You Can Use This code

((AppCompatActivity) getActivity()).getSupportFragmentManager().beginTransaction().replace(R.id.YourFrameLayout, new YourFragment()).commit();

or You Can This Use Code

YourFragment fragments=(YourFragment) getSupportFragmentManager().findFragmentById(R.id.FrameLayout);

        if (fragments==null) {
            getSupportFragmentManager().beginTransaction().replace(R.id.FrameLayout, new Fragment_News()).commit();
        }

I also faced this due to Tomcat version mismatching! According to the documentation, the default tomcat version of Grails 4.0.x is tomcat 8 but in the server that I was using had the tomcat version of 9.0.31!

in the build.gradle file I changed compile "org.springframework.boot:spring-boot-starter-tomcat" to provided "org.springframework.boot:spring-boot-starter-tomcat" and added/modified the cache plugin to compile "org.grails.plugins:cache", { exclude group: "org.codehaus.groovy", module: "groovy-all" } under dependencies block! [Cache plugin comes with groovy-all 2.1]

It worked like a charm! Strangely, this did not cause any problems when running the app with command grails run-app

Have you tried using the WebClient class?

you should be able to use

string result = "";
using (var client = new WebClient())
{
    client.Headers[HttpRequestHeader.ContentType] = "application/json"; 
    result = client.UploadString(url, "POST", json);
}
Console.WriteLine(result);

Documentation at

http://msdn.microsoft.com/en-us/library/system.net.webclient%28v=vs.110%29.aspx

http://msdn.microsoft.com/en-us/library/d0d3595k%28v=vs.110%29.aspx

I use (2) if code is the "owner" of the list. This is for example true for local-only variables. There is no reason to use the abstract type List instead of ArrayList. Another example to demonstrate ownership:

public class Test {

    // This object is the owner of strings, so use the concrete type.
    private final ArrayList<String> strings = new ArrayList<>();

    // This object uses the argument but doesn't own it, so use abstract type.
    public void addStrings(List<String> add) {
        strings.addAll(add);
    }

    // Here we return the list but we do not give ownership away, so use abstract type. This also allows to create optionally an unmodifiable list.
    public List<String> getStrings() {
        return Collections.unmodifiableList(strings);
    }

    // Here we create a new list and give ownership to the caller. Use concrete type.
    public ArrayList<String> getStringsCopy() {
        return new ArrayList<>(strings);
    }
}

The accepted answer is awesome, it properly explains the difference between string vs text (mostly the limit size in the database, but there are a few other gotchas), but I wanted to point out a small issue that got me through it as that answer didn't completely do it for me.

The max size :limit => 1 to 4294967296 didn't work exactly as put, I needed to go -1 from that max size. I'm storing large JSON blobs and they might be crazy huge sometimes.

Here's my migration with the larger value in place with the value MySQL doesn't complain about.

Note the 5 at the end of the limit instead of 6

class ChangeUserSyncRecordDetailsToText < ActiveRecord::Migration[5.1]
  def up
    change_column :user_sync_records, :details, :text, :limit => 4294967295
  end

  def down
    change_column :user_sync_records, :details, :string, :limit => 1000
  end
end

One minor difference is what they convert of undefined or null,

Number() Or Number(null) // returns 0

while

parseInt() Or parseInt(null) // returns NaN

DATE_FIELD_MAPPING = {
    Model1: 'date',
    Model2: 'pubdate',
}

def my_key_func(obj):
    return getattr(obj, DATE_FIELD_MAPPING[type(obj)])

And then sorted(chain(Model1.objects.all(), Model2.objects.all()), key=my_key_func)

Quoted from https://groups.google.com/forum/#!topic/django-users/6wUNuJa4jVw. See Alex Gaynor

To change color of hint and edit text underline color : colorControlActivated

To change character counter color : textColorSecondary

To change error message color : colorControlNormal

To change password visibility button tint : colorForeground

For more info on TextInputLayout read http://www.zoftino.com/android-textinputlayout-tutorial

<style name="MyAppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorControlActivated">#e91e63</item>
    <item name="android:colorForeground">#33691e</item>
    <item name="colorControlNormal">#f57f17</item>
    <item name="android:textColorSecondary">#673ab7</item>
</style>

This is how I got it working on httpClient 4.5 (as per Olive Tree request):

CredentialsProvider credsProvider = new BasicCredentialsProvider();
credsProvider.setCredentials(
        new AuthScope(AuthScope.ANY_HOST, 443),
        new UsernamePasswordCredentials(this.user, this.password));

SSLContext sslContext = SSLContexts.createDefault();

SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext,
        new String[]{"TLSv1", "TLSv1.1"},
        null,
        new NoopHostnameVerifier());

CloseableHttpClient httpclient = HttpClients.custom()
        .setDefaultCredentialsProvider(credsProvider)
        .setSSLSocketFactory(sslsf)
        .build();

return httpclient;

You can use Magical Take Photo library.

1. try with compile in gradle

compile 'com.frosquivel:magicaltakephoto:1.0'

2. You need this permission in your manifest.xml

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA"/>

3. instance the class like this

// "this" is the current activity param

MagicalTakePhoto magicalTakePhoto =  new MagicalTakePhoto(this,ANY_INTEGER_0_TO_4000_FOR_QUALITY);

4. if you need to take picture use the method

magicalTakePhoto.takePhoto("my_photo_name");

5. if you need to select picture in device, try with the method:

magicalTakePhoto.selectedPicture("my_header_name");

6. You need to override the method onActivityResult of the activity or fragment like this:

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
     super.onActivityResult(requestCode, resultCode, data);
     magicalTakePhoto.resultPhoto(requestCode, resultCode, data);

     // example to get photo
     // imageView.setImageBitmap(magicalTakePhoto.getMyPhoto());
}

Note: Only with this Library you can take and select picture in the device, this use a min API 15.

These are the 5 steps I perform when I got such an error.

• Are you sure the name is correct? (also check the selector defined in the component)
• Declare the component in a module?
• If it is in another module, export the component?
• If it is in another module, import that module?
• Restart the cli?

When the error eccors during unit testing, make sure your declared the component or imported the module in TestBed.configureTestingModule

I also tried putting ContactBoxComponent in CustomersAddComponent and then in another one (from different module) but I got an error saying there are multiple declarations.

You can't declare a component twice. You should declare and export your component in a new separate module. Next you should import this new module in every module you want to use your component.

It is hard to tell when you should create new module and when you shouldn't. I usually create a new module for every component I reuse. When I have some components that I use almost everywhere I put them in a single module. When I have a component that I don't reuse I won't create a separate module until I need it somewhere else.

Though it might be tempting to put all you components in a single module, this is bad for the performance. While developing, a module has to recompile every time changes are made. The bigger the module (more components) the more time it takes. Making a small change to big module takes more time than making a small change in a small module.

The information schema isn't the place to treat these things (see DDL database commands).

When you add a comment you need to change the table structure (table comments).

From MySQL 5.6 documentation:

INFORMATION_SCHEMA is a database within each MySQL instance, the place that stores information about all the other databases that the MySQL server maintains. The INFORMATION_SCHEMA database contains several read-only tables. They are actually views, not base tables, so there are no files associated with them, and you cannot set triggers on them. Also, there is no database directory with that name.

Although you can select INFORMATION_SCHEMA as the default database with a USE statement, you can only read the contents of tables, not perform INSERT, UPDATE, or DELETE operations on them.

Chapter 21 INFORMATION_SCHEMA Tables

First, the title question: Assuming the debian directory is already there, be in the source directory (the directory containing the debian directory) and invoke dpkg-buildpackage. I like to run it with these options:

dpkg-buildpackage -us -uc -nc

which mean don't sign the result and don't clean.

How can I check if I have listed all the dependencies correctly?

Getting the dependencies is a black art. The "official" way is to check build depends is if the package builds with only the base system, the "build-essential" packages, and the build dependencies you have specified. Don't know a general answer for regular Dependencies, just wade in :)

How I can I prevent the update system installing the older version in the repo on an update? How I can prevent the system installing a newer version (when its out), overwriting my custom package?

My knowledge might be out of date on this one, but to address both: Use dpkg --set-selections. Assuming nullidentd was the package you wanted to stay put, run as root

echo 'nullidentd hold' | dpkg --set-selections

Alternately, since you are building from source, you can use an epoch to set the version number artificially high and never be bothered again. To use an epoch, add a new entry to the debian/changelog file, and put a 99: in front of the version number. Given my nullidentd example, the first line of your updated changelog would read:

nullidentd (99:1.0-4) unstable; urgency=low

Bernard's link is good, especially if you have to create the debian directory yourself - also helpful are the developers reference and the general resource page. Adam's link also looks good but I'm not familiar with it.

Here's the correct code. If you're using zybooks this will answer all the problems.

for (int i = 0; i<passCode.length(); i++)
{
    char letter = passCode.charAt(i);
    if (letter == ' ' )
    {
        System.out.println("Space at " + i);
    }
}

In my case, it was different! But I think sharing my experience might help someone!

In MAC, the 'keychain access' has saved my previous 'Github' password. I was trying with a new GitHub repository, and it never worked. When I removed the old GitHub password from 'keychain access' from my MAC machine it worked! I hope it helps someone.

Manual cleanup:

You can KILL the processid.

mysql> show full processlist;
+---------+------------+-------------------+------+---------+-------+-------+-----------------------+
| Id      | User       | Host              | db   | Command | Time  | State | Info                  |
+---------+------------+-------------------+------+---------+-------+-------+-----------------------+
| 1193777 | TestUser12 | 192.168.1.11:3775 | www  | Sleep   | 25946 |       | NULL                  |
+---------+------------+-------------------+------+---------+-------+-------+-----------------------+

mysql> kill 1193777;

But:

• the php application might report errors (or the webserver, check the error logs)
• don't fix what is not broken - if you're not short on connections, just leave them be.

Automatic cleaner service ;)

Or you configure your mysql-server by setting a shorter timeout on wait_timeout and interactive_timeout

mysql> show variables like "%timeout%";
+--------------------------+-------+
| Variable_name            | Value |
+--------------------------+-------+
| connect_timeout          | 5     |
| delayed_insert_timeout   | 300   |
| innodb_lock_wait_timeout | 50    |
| interactive_timeout      | 28800 |
| net_read_timeout         | 30    |
| net_write_timeout        | 60    |
| slave_net_timeout        | 3600  |
| table_lock_wait_timeout  | 50    |
| wait_timeout             | 28800 |
+--------------------------+-------+
9 rows in set (0.00 sec)

Set with:

set global wait_timeout=3;
set global interactive_timeout=3;

(and also set in your configuration file, for when your server restarts)

But you're treating the symptoms instead of the underlying cause - why are the connections open? If the PHP script finished, shouldn't they close? Make sure your webserver is not using connection pooling...

I read it here, that you need to convert each table manually, it is not true. Here is a solution how to do it with a stored procedure:

DELIMITER $$

DROP PROCEDURE IF EXISTS changeCollation$$

-- character_set parameter could be 'utf8'
-- or 'latin1' or any other valid character set
CREATE PROCEDURE changeCollation(IN character_set VARCHAR(255))
BEGIN
DECLARE v_finished INTEGER DEFAULT 0;
DECLARE v_table_name varchar(255) DEFAULT "";
DECLARE v_message varchar(4000) DEFAULT "No records";

-- This will create a cursor that selects each table,
-- where the character set is not the one
-- that is defined in the parameter

DECLARE alter_cursor CURSOR FOR SELECT DISTINCT TABLE_NAME
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = DATABASE()
AND COLLATION_NAME NOT LIKE CONCAT(character_set, '_%');

-- This handler will set the value v_finished to 1
-- if there are no more rows

DECLARE CONTINUE HANDLER
FOR NOT FOUND SET v_finished = 1;

OPEN alter_cursor;

-- Start a loop to fetch each rows from the cursor
get_table: LOOP

-- Fetch the table names one by one
FETCH alter_cursor INTO v_table_name;

-- If there is no more record, then we have to skip
-- the commands inside the loop
IF v_finished = 1 THEN
LEAVE get_table;
END IF;

IF v_table_name != '' THEN

IF v_message = 'No records' THEN
SET v_message = '';
END IF;

-- This technic makes the trick, it prepares a statement
-- that is based on the v_table_name parameter and it means
-- that this one is different by each iteration inside the loop

SET @s = CONCAT('ALTER TABLE ',v_table_name,
' CONVERT TO CHARACTER SET ', character_set);
PREPARE stmt FROM @s;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

SET v_message = CONCAT('The table ', v_table_name ,
' was changed to the default collation of ', character_set,
'.\n', v_message);

SET v_table_name = '';

END IF;
-- Close the loop and the cursor
END LOOP get_table;
CLOSE alter_cursor;

-- Returns information about the altered tables or 'No records'
SELECT v_message;

END $$

DELIMITER ;

After the procedure is created call it simply:

CALL changeCollation('utf8');

For more details read this blog.

Use:

filename=$1
IFS=$'\n'
for next in `cat $filename`; do
    echo "$next read from $filename" 
done
exit 0

If you have set IFS differently you will get odd results.

For live video conferencing you can't ignore the need of a streaming server.

Yes, flash will let you display video from a webcam within the local flash control, but that won't let you then send that video over the network - for that you need a streaming server to send it to.

If you're going to build something like this it's prudent to think about how you're going to host the video from a very early stage as it will influence how you build the application. Flash/Flex/Silverlight/Windows Media....etc....

You can trigger a file input element by sending it a Javascript click event, e.g.

<input type="file" ... id="file-input">

$("#file-input").click();

You could put this in a click event handler for the image, for instance, then hide the file input with CSS. It'll still work even if it's invisible.

Once you've got that part working, you can set a change event handler on the input element to see when the user puts a file into it. This event handler can create a temporary "blob" URL for the image by using window.URL.createObjectURL, e.g.:

var file = document.getElementById("file-input").files[0];
var blob_url = window.URL.createObjectURL(file);

That URL can be set as the src for an image on the page. (It only works on that page, though. Don't try to save it anywhere.)

Note that not all browsers currently support camera capture. (In fact, most desktop browsers don't.) Make sure your interface still makes sense if the user gets asked to pick a file.

I don't see anyone mentioned the fact that the order of method calls on res object is important. I'm new to nodejs and didn't realize at first that res.json() does more than just setting the body of the response. It actually tries to infer the response status as well. So, if done like so:

res.json({"message": "Bad parameters"})
res.status(400)

The second line would be of no use, because based on the correctly built json express/nodejs will already infer the success status(200).

If I Understood correctly you need to view the .db file that you extracted from internal storage of Emulator. If that's the case use this

http://sourceforge.net/projects/sqlitebrowser/

to view the db.

You can also use a firefox extension

https://addons.mozilla.org/en-us/firefox/addon/sqlite-manager/

EDIT: For online tool use : https://sqliteonline.com/

This worked for me:
chmod 700 .ssh chmod 600 .ssh/id_rsa chmod 644 .ssh/id_rsa.pub

Then, type this: ssh-add ~/.ssh/id_rsa

You can use the latest version of the jQuery library by any of the following.

• Google Ajax API CDN (also supports SSL via HTTPS)

  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2"></script>
  

  /jquery.min.js

• Microsoft CDN (also aupports SSL via HTTPS)

  <script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.2.min.js"></script>
  

  Ajax CDN Announcement, Microsoft Ajax CDN Documentation

• jQuery CDN (via Media Temple)

   <script type="text/javascript" src=" http://code.jquery.com/jquery-1.7.2.min.js"></script>
  

  ** Minified version

   <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.2.js"></script>
  

  ** Development (Full) version

Create a method and call it to close the JFrame, for example:

public void CloseJframe(){
    super.dispose();
}

This function will round either be order of magnitude (right to left) or by digits the same way that format treats floating point decimal places (left to right:

def intround(n, p):
    ''' rounds an intger. if "p"<0, p is a exponent of 10; if p>0, left to right digits '''
    if p==0: return n
    if p>0:  
        ln=len(str(n))  
        p=p-ln+1 if n<0 else p-ln
    return (n + 5 * 10**(-p-1)) // 10**-p * 10**-p

>>> tgt=5555555
>>> d=2
>>> print('\t{} rounded to {} places:\n\t{} right to left \n\t{} left to right'.format(
        tgt,d,intround(tgt,-d), intround(tgt,d))) 

Prints

5555555 rounded to 2 places:
5555600 right to left 
5600000 left to right

You can also use Decimal class:

import decimal
import sys

def ri(i, prec=6):
    ic=long if sys.version_info.major<3 else int
    with decimal.localcontext() as lct:
        if prec>0:
            lct.prec=prec
        else:
            lct.prec=len(str(decimal.Decimal(i)))+prec  
        n=ic(decimal.Decimal(i)+decimal.Decimal('0'))
    return n

On Python 3 you can reliably use round with negative places and get a rounded integer:

def intround2(n, p):
    ''' will fail with larger floating point numbers on Py2 and require a cast to an int '''
    if p>0:
        return round(n, p-len(str(n))+1)
    else:
        return round(n, p)    

On Python 2, round will fail to return a proper rounder integer on larger numbers because round always returns a float:

>>> round(2**34, -5)
17179900000.0                     # OK
>>> round(2**64, -5)
1.84467440737096e+19              # wrong 

The other 2 functions work on Python 2 and 3

If you are using this form of the branch command (with start point), it does not matter where your HEAD is.

What you are doing:

git checkout dev
git branch test 07aeec983bfc17c25f0b0a7c1d47da8e35df7af8

• First, you set your HEAD to the branch dev,

• Second, you start a new branch on commit 07aeec98. There is no bb.txt at this commit (according to your github repo).

If you want to start a new branch at the location you have just checked out, you can either run branch with no start point:

git branch test

or as other have answered, branch and checkout there in one operation:

git checkout -b test

I think that you might be confused by that fact that 07aeec98 is part of the branch dev. It is true that this commit is an ancestor of dev, its changes are needed to reach the latest commit in dev. However, they are other commits that are needed to reach the latest dev, and these are not necessarily in the history of 07aeec98.

8480e8ae (where you added bb.txt) is for example not in the history of 07aeec98. If you branch from 07aeec98, you won't get the changes introduced by 8480e8ae.

In other words: if you merge branch A and branch B into branch C, then create a new branch on a commit of A, you won't get the changes introduced in B.

Same here, you had two parallel branches master and dev, which you merged in dev. Branching out from a commit of master (older than the merge) won't provide you with the changes of dev.

If you want to permanently integrate new changes from master into your feature branches, you should merge master into them and go on. This will create merge commits in your feature branches, though.

If you have not published your feature branches, you can also rebase them on the updated master: git rebase master featureA. Be prepared to solve possible conflicts.

If you want a workflow where you can work on feature branches free of merge commits and still integrate with newer changes in master, I recommend the following:

• base every new feature branch on a commit of master
• create a dev branch on a commit of master
• when you need to see how your feature branch integrates with new changes in master, merge both master and the feature branch into dev.

Do not commit into dev directly, use it only for merging other branches.

For example, if you are working on feature A and B:

a---b---c---d---e---f---g -master
    \       \
     \       \-x -featureB
      \
       \-j---k -featureA

Merge branches into a dev branch to check if they work well with the new master:

a---b---c---d---e---f---g -master
    \       \            \
     \       \            \--x'---k' -dev
      \       \             /    /   
       \       \-x----------    /    -featureB
        \                      /
         \-j---k--------------- -featureA

You can continue working on your feature branches, and keep merging in new changes from both master and feature branches into dev regularly.

a---b---c---d---e---f---g---h---i----- -master
    \       \            \            \
     \       \            \--x'---k'---i'---l' -dev
      \       \             /    /         /
       \       \-x----------    /         /  -featureB
        \                      /         /  
         \-j---k-----------------l------ -featureA

When it is time to integrate the new features, merge the feature branches (not dev!) into master.

If you're doing that in C, then your judgement there is as cloudy as it would be in Python :-)

For a loop that exits on a simple condition check at the start of each iteration, it's more usual (and clearer, in my opinion) to just do that in the looping construct itself. In other words, something like (if you need i after loop end):

int i = 0;
while (! thereIsAReasonToBreak(i)) {
    // do something
    i++;
}

or (if i can be scoped to just the loop):

for (int i = 0; ! thereIsAReasonToBreak(i); ++i) {
    // do something
}

That would translate to the Python equivalent:

i = 0
while not there_is_a_reason_to_break(i):
    # do something
    i += 1

Only if you need to exit in the middle of the loop somewhere (or if your condition is complex enough that it would render your looping statement far less readable) would you need to worry about breaking.

When your potential exit is a simple one at the start of the loop (as it appears to be here), it's usually better to encode the exit into the loop itself.

The strptime() approach does not work for me. I get another cleaner solution, using cast:

from pyspark.sql.types import DateType
spark_df1 = spark_df.withColumn("record_date",spark_df['order_submitted_date'].cast(DateType()))
#below is the result
spark_df1.select('order_submitted_date','record_date').show(10,False)

+---------------------+-----------+
|order_submitted_date |record_date|
+---------------------+-----------+
|2015-08-19 12:54:16.0|2015-08-19 |
|2016-04-14 13:55:50.0|2016-04-14 |
|2013-10-11 18:23:36.0|2013-10-11 |
|2015-08-19 20:18:55.0|2015-08-19 |
|2015-08-20 12:07:40.0|2015-08-20 |
|2013-10-11 21:24:12.0|2013-10-11 |
|2013-10-11 23:29:28.0|2013-10-11 |
|2015-08-20 16:59:35.0|2015-08-20 |
|2015-08-20 17:32:03.0|2015-08-20 |
|2016-04-13 16:56:21.0|2016-04-13 |

//Resolved
const fetchPromise1 = fetch(url);
    fetchPromise1.then(response => {
      console.log(response);
    });


//Pending
const fetchPromise = fetch(url);
console.log(fetchPromise);

if you want saturday or sunday or any day of week but not exceeding current week(Sat-Sun) I got you covered with this piece of code.

public static DateTime GetDateInCurrentWeek(this DateTime date, DayOfWeek day)
{
    var temp = date;
    var limit = (int)date.DayOfWeek;
    var returnDate = DateTime.MinValue;

    if (date.DayOfWeek == day) return date;

    for (int i = limit; i < 6; i++)
    {
        temp = temp.AddDays(1);

        if (day == temp.DayOfWeek)
        {
            returnDate = temp;
            break;
        }
    }
    if (returnDate == DateTime.MinValue)
    {
        for (int i = limit; i > -1; i++)
        {
            date = date.AddDays(-1);

            if (day == date.DayOfWeek)
            {
                returnDate = date;
                break;
            }
        }
    }
    return returnDate;
}

I was beginning to go mad while searching for the real configuration, so here is the list of all configuration files on linux:

• /etc/npmrc
• /home/youruser/.npmrc
• /root/.npmrc
• ./.npmrc in the current directory next to package.json file (thanks to @CyrillePontvieux)

on windows:

• c/Program\ Files/nodejs/node_modules/npm/npmrc

Then in this file the prefix is configured:

prefix=/usr

The prefix is defaulted to /usr in linux, to ${APPDATA}\npm in windows

The node modules are under $prefix tree, and the path should contain $prefix/bin

There may be a problem :

• When you install globally, you use "sudo su" then the /root/.npmrc may be used!
• When you use locally without sudo: for your user its the /home/youruser/.npmrc.
• When your path doesn't represent your prefix
• When you use npm set -g prefix /usr it sets the /etc/npmrc global, but doesn't override the local

Here is all the informations that were missing to find what is configured where. Hope I have been exhaustive.

1. when you want to use Unicode strings and not just ascii, helpful for internationalisation
2. yes, but it doesn't play well with 0
3. not aware of any that don't
4. wide character is the compiler specific way of handling the fixed length representation of a unicode character, for MSVC it is a 2 byte character, for gcc I understand it is 4 bytes. and a +1 for http://www.joelonsoftware.com/articles/Unicode.html

I also had problem with this error, and came upon a solution. This does not explain why the error occurred, but it seems to fix it in some cases.

Include a forward slash / before the path to the css file, like so:

<link rel="stylesheet" href="/css/bootstrap.min.css">

You can escape (this is how this principle is called) the double quotes by prefixing them with another double quote. You can put them in a string as follows:

Dim MyVar as string = "some text ""hello"" "

This will give the MyVar variable a value of some text "hello".

If you want to achieve this selectively (ie: only to that particular link), you can use a non-breaking space instead of a normal space:

<li>submit&nbsp;resume</li>

https://en.wikipedia.org/wiki/Non-breaking_space#Encodings

edit: I understand that this is HTML, not CSS as requested by the OP, but some may find it helpful…

For gcc 4.8.4 you need to use -std=c++1y in later versions, looks like starting with 5.2 you can use -std=c++14.

If we look at the gcc online documents we can find the manuals for each version of gcc and we can see by going to Dialect options for 4.9.3 under the GCC 4.9.3 manual it says:

‘c++1y’

The next revision of the ISO C++ standard, tentatively planned for 2014. Support is highly experimental, and will almost certainly change in incompatible ways in future releases.

So up till 4.9.3 you had to use -std=c++1y while the gcc 5.2 options say:

‘c++14’ ‘c++1y’

The 2014 ISO C++ standard plus amendments. The name ‘c++1y’ is deprecated.

It is not clear to me why this is listed under Options Controlling C Dialect but that is how the documents are currently organized.

If you are using Babel and React 17, you might need to add "runtime2: "automatic" to config.

 {
     "presets": ["@babel/preset-env", ["@babel/preset-react", {
        "runtime": "automatic"
     }]]
 }

If you are using Sql Server (any edition, even express) then you can install Sql Server Reporting Services. This allows the creation of reports through a visual studio plugin, or through a browser control and can export the reports in a variety of formats, including PDF. You can view the reports through the winforms report viewer control which is included, or take advantage of all of the built in generated web content.

The learning curve is not very steep at all if you are used to using datasets in Visual Studio.

In the "volumes" tab, you have to mount it first. Then it appears on the desktop as if it were an external USB. All the data is inside it. :D

You might also find it useful to know generally what these data types are used for:

• :string - is for small data types such as a title. (Should you choose string or text?)
• :text - is for longer pieces of textual data, such as a paragraph of information
• :binary - is for storing data such as images, audio, or movies.
• :boolean - is for storing true or false values.
• :date - store only the date
• :datetime - store the date and time into a column.
• :time - is for time only
• :timestamp - for storing date and time into a column.(What's the difference between datetime and timestamp?)
• :decimal - is for decimals (example of how to use decimals).
• :float - is for decimals. (What's the difference between decimal and float?)
• :integer - is for whole numbers.
• :primary_key - unique key that can uniquely identify each row in a table

There's also references used to create associations. But, I'm not sure this is an actual data type.

New Rails 4 datatypes available in PostgreSQL:

• :hstore - storing key/value pairs within a single value (learn more about this new data type)
• :array - an arrangement of numbers or strings in a particular row (learn more about it and see examples)
• :cidr_address - used for IPv4 or IPv6 host addresses
• :inet_address - used for IPv4 or IPv6 host addresses, same as cidr_address but it also accepts values with nonzero bits to the right of the netmask
• :mac_address - used for MAC host addresses

Learn more about the address datatypes here and here.

Also, here's the official guide on migrations: http://edgeguides.rubyonrails.org/migrations.html

I would love the ability to use a role as a collection of tasks such that, in my playbook, I can choose which subset of tasks to run. Unfortunately, the playbook can only load them all in and then you have to use the --tags option on the cmdline to choose which tasks to run. The problem with this is that all of the tasks will run unless you remember to set --tags or --skip-tags.

I have set up some tasks, however, with a when: clause that will only fire if a var is set.

e.g.

# role/stuff/tasks/main.yml
- name: do stuff
  when: stuff|default(false)

Now, this task will not fire by default, but only if I set the stuff=true

$ ansible-playbook -e '{"stuff":true}'

or in a playbook:

roles:
- {"role":"stuff", "stuff":true}

Initially when i implemented a longClick and a click to perform two separate events the problem i face was that when i had a longclick , the application also performed the action to be performed for a simple click . The solution i realized was to change the return type of the longClick to true which is normally false by default . Change it and it works perfectly .

The following bash script can be used to display the package and activity names in an apk, and launch the application by passing it an APK file.

apk_start.sh

package=`aapt dump badging $* | grep package | awk '{print $2}' | sed s/name=//g | sed s/\'//g`
activity=`aapt dump badging $* | grep Activity | awk '{print $2}' | sed s/name=//g | sed s/\'//g`
echo
echo package : $package
echo activity: $activity
echo
echo Launching application on device....
echo
adb shell am start -n $package/$activity

Then to launch the application in the emulator, simply supply the APK filename like so:

apk_start.sh /tmp/MyApp.apk

Of course if you just want the package and activity name of the apk to be displayed, delete the last line of the script.

You can stop an application in the same way by using this script:

apk_stop.sh

package=`aapt dump badging $* | grep package | awk '{print $2}' | sed s/name=//g | sed s/\'//g`
adb shell am force-stop $package

like so:

apk_stop.sh /tmp/MyApp.apk

Important Note: aapt can be found here:

<android_sdk_home>/build-tools/android-<ver>/aapt

You can let the user set a read-only property by providing it through the constructor:

public class Person
{
    public Person(int id)
    {
        this.Id = id;
    }

    public string Name { get;  set; }
    public int Id { get; private set; }
    public int Age { get; set; }
}

As described by the link I've given in comment, this

$('p[MyTag]').each(function(index) {
  document.write(index + ': ' + $(this).text() + "<br>");});

works (playable example).

I can also use

show errors;

In sql worksheet.

Java doesn't have "true" multidimensional arrays.

For example, arr[i][j][k] is equivalent to ((arr[i])[j])[k]. In other words, arr is simply an array, of arrays, of arrays.

So, if you know how arrays work, you know how multidimensional arrays work!

Declaration:

int[][][] threeDimArr = new int[4][5][6];

or, with initialization:

int[][][] threeDimArr = { { { 1, 2 }, { 3, 4 } }, { { 5, 6 }, { 7, 8 } } };

Access:

int x = threeDimArr[1][0][1];

or

int[][] row = threeDimArr[1];

String representation:

Arrays.deepToString(threeDimArr);

yields

"[[[1, 2], [3, 4]], [[5, 6], [7, 8]]]"

Useful articles

• Java: Initializing a multidimensional array
• Java: Matrices and Multidimensional Arrays

And remember to use parenthesis!

Keep in mind that & operator takes a precedence over operators such as > or < etc. That is why

4 < 5 & 6 > 4

evaluates to False. Therefore if you're using pd.loc, you need to put brackets around your logical statements, otherwise you get an error. That's why do:

df.loc[(df['A'] > 10) & (df['B'] < 15)]

instead of

df.loc[df['A'] > 10 & df['B'] < 15]

which would result in

TypeError: cannot compare a dtyped [float64] array with a scalar of type [bool]

Here's the GNU version of printf... you can see it passing in stdout to vfprintf:

__printf (const char *format, ...)
{
   va_list arg;
   int done;

   va_start (arg, format);
   done = vfprintf (stdout, format, arg);
   va_end (arg);

   return done;
}

See here.

Here's a link to vfprintf... all the formatting 'magic' happens here.

The only thing that's truly 'different' about these functions is that they use varargs to get at arguments in a variable length argument list. Other than that, they're just traditional C. (This is in contrast to Pascal's printf equivalent, which is implemented with specific support in the compiler... at least it was back in the day.)

set in XML

android:inputType="none" 

The alternative for loop version to Kristo's answer.

You lose some efficiency, you go backwards and then forward again when deleting but in exchange for the extra iterator increment you can have the iterator declared in the loop scope and the code looking a bit cleaner. What to choose depends on priorities of the moment.

The answer was totally out of time, I know...

typedef std::list<item*>::iterator item_iterator;

for(item_iterator i = items.begin(); i != items.end(); ++i)
{
    bool isActive = (*i)->update();

    if (!isActive)
    {
        items.erase(i--); 
    }
    else
    {
        other_code_involving(*i);
    }
}

Try this in scala:

df.show(df.count.toInt, false)

The show method accepts an integer and a Boolean value but df.count returns Long...so type casting is required

Shubham answer didn't work for me.

When you are using axios library and to pass custom headers, you need to construct headers as an object with key name "headers". The headers key should contain an object, here it is Content-Type and Authorization.

Below example is working fine.

    var headers = {
        'Content-Type': 'application/json',
        'Authorization': 'JWT fefege...' 
    }
    axios.post(Helper.getUserAPI(), data, {"headers" : headers})

        .then((response) => {
            dispatch({type: FOUND_USER, data: response.data[0]})
        })
        .catch((error) => {
            dispatch({type: ERROR_FINDING_USER})
        })

Take a look at http://git-scm.com/book/en/Git-Internals-Transfer-Protocols for info on how to do this over some transport protocols. Note this won't work for standard git over SSH.

For git over SSH, an up-to-date server-side git should allow you to git-archive directly from the remote, which you could then e.g. pipe to "tar t" to get a list of all files in a given commit.

Swift

If you are not using object then you can user this code for contains.

let elements = [ 10, 20, 30, 40, 50]

if elements.contains(50) {

   print("true")

}

If you are using NSObject Class in swift. This variables is according to my requirement. you can modify for your requirement.

var cliectScreenList = [ATModelLeadInfo]()
var cliectScreenSelectedObject: ATModelLeadInfo!

This is for a same data type.

{ $0.user_id == cliectScreenSelectedObject.user_id }

If you want to AnyObject type.

{ "\($0.user_id)" == "\(cliectScreenSelectedObject.user_id)" }

Full condition

if cliectScreenSelected.contains( { $0.user_id == cliectScreenSelectedObject.user_id } ) == false {

    cliectScreenSelected.append(cliectScreenSelectedObject)

    print("Object Added")

} else {

    print("Object already exists")

 }

I could solve the same problem using the below solution.

In my project, I added a JAR file which were created in Java 8. And my project was referring to JRE 7. When I changed project JRE to 8, my problem was solved.

Steps:

In Eclipse, right click on the project name in project explorer ? Build path ? Libraries ? click on JRE version ? click Edit ? Installed JRE ? Add ? Standerd VM ? select JRE home click-path (path should be localePath\java\jdk1.8.0_25\jre) ? provide name ? Save ? select same JRE for project ? Finish ? OK. Refresh/build project once ? try to run your Java file. It should work.

Why I prefer Fragment over Activity in ALL CASES.

• Activity is expensive. In Fragment, views and property states are separated - whenever a fragment is in backstack, its views will be destroyed. So you can stack much more Fragments than Activity.

• Backstack manipulation. With FragmentManager, it's easy to clear all the Fragments, insert more than on Fragments and etcs. But for Activity, it will be a nightmare to manipulate those stuff.

• A much predictable lifecycle. As long as the host Activity is not recycled. the Fragments in the backstack will not be recycled. So it's possible to use FragmentManager::getFragments() to find specific Fragment (not encouraged).

You can use Microsoft's MapPoint Web Services.

I created a blog entry on how to convert an address to a GeoCode (lat/long).

Compare two values: the normal double, and the double after flooring it. If they are the same value, there is no decimal component.

In one line, using T.J. Crowder's solution :

secToHHMMSS = seconds => `${Math.floor(seconds / 3600)}:${Math.floor((seconds % 3600) / 60)}:${Math.floor((seconds % 3600) % 60)}`

In one line, another solution that also count days :

secToDHHMMSS = seconds => `${parseInt(seconds / 86400)}d ${new Date(seconds * 1000).toISOString().substr(11, 8)}`

Source : https://gist.github.com/martinbean/2bf88c446be8048814cf02b2641ba276

As per Prakash K's answer Firefox does not support the innerText property. So you can simply test whether the user agent supports this property and proceed accordingly as below:

function changeText(elem, changeVal) {
    if (typeof elem.textContent !== "undefined") {
        elem.textContent = changeVal;
    } else {
        elem.innerText = changeVal;
    }
}

Mark, this is already answered in your previous topic. But OK, here it is again:

Suppose ${list} points to a List<Object>, then the following

<c:forEach items="${list}" var="item">
    ${item}<br>
</c:forEach>

does basically the same as as following in "normal Java":

for (Object item : list) {
    System.out.println(item);
}

If you have a List<Map<K, V>> instead, then the following

<c:forEach items="${list}" var="map">
    <c:forEach items="${map}" var="entry">
        ${entry.key}<br>
        ${entry.value}<br>
    </c:forEach>
</c:forEach>

does basically the same as as following in "normal Java":

for (Map<K, V> map : list) {
    for (Entry<K, V> entry : map.entrySet()) {
        System.out.println(entry.getKey());
        System.out.println(entry.getValue());
    }
}

The key and value are here not special methods or so. They are actually getter methods of Map.Entry object (click at the blue Map.Entry link to see the API doc). In EL (Expression Language) you can use the . dot operator to access getter methods using "property name" (the getter method name without the get prefix), all just according the Javabean specification.

That said, you really need to cleanup the "answers" in your previous topic as they adds noise to the question. Also read the comments I posted in your "answers".

First

ps -ef

to list all processes. Note the the process number of the one you want to kill. Then

kill 1234

were you replace 1234 with the process number that you want.

Alternatively, if you are absolutely certain that there is only one process with a particular name, or you want to kill multiple processes which share the same name

killall processname

The following code creates an Array object called myCars:

var myCars=new Array();

There are two ways of adding values to an array (you can add as many values as you need to define as many variables you require).

1:

var myCars=new Array();
myCars[0]="Saab";
myCars[1]="Volvo";
myCars[2]="BMW";

You could also pass an integer argument to control the array's size:

var myCars=new Array(3);
myCars[0]="Saab";
myCars[1]="Volvo";
myCars[2]="BMW";

2:

var myCars=new Array("Saab","Volvo","BMW");

Note: If you specify numbers or true/false values inside the array then the type of variables will be numeric or Boolean instead of string.

Access an Array

You can refer to a particular element in an array by referring to the name of the array and the index number. The index number starts at 0.

The following code line:

document.write(myCars[0]);

will result in the following output:

Saab

Modify Values in an Array

To modify a value in an existing array, just add a new value to the array with a specified index number:

myCars[0]="Opel";

Now, the following code line:

document.write(myCars[0]);

will result in the following output:

Opel

Explanation:

This problem occurs because Chrome allows up to 6 open connections by default. So if you're streaming multiple media files simultaneously from 6 <video> or <audio> tags, the 7th connection (for example, an image) will just hang, until one of the sockets opens up. Usually, an open connection will close after 5 minutes of inactivity, and that's why you're seeing your .pngs finally loading at that point.

Solution 1:

You can avoid this by minimizing the number of media tags that keep an open connection. And if you need to have more than 6, make sure that you load them last, or that they don't have attributes like preload="auto".

Solution 2:

If you're trying to use multiple sound effects for a web game, you could use the Web Audio API. Or to simplify things, just use a library like SoundJS, which is a great tool for playing a large amount of sound effects / music tracks simultaneously.

Solution 3: Force-open Sockets (Not recommended)

If you must, you can force-open the sockets in your browser (In Chrome only):

1. Go to the address bar and type chrome://net-internals.
2. Select Sockets from the menu.
3. Click on the Flush socket pools button.

This solution is not recommended because you shouldn't expect your visitors to follow these instructions to be able to view your site.

• Protobuf serialized objects are about 30% smaller than Thrift.
• Most actions you may want to do with protobuf objects (create, serialize, deserialize) are much slower than thrift unless you turn on option optimize_for = SPEED.
• Thrift has richer data structures (Map, Set)
• Protobuf API looks cleaner, though the generated classes are all packed as inner classes which is not so nice.
• Thrift enums are not real Java Enums, i.e. they are just ints. Protobuf has real Java enums.

For a closer look at the differences, check out the source code diffs at this open source project.

Re: aku, izb, John Topley...

Watch out for mutability issues...

It may seem sensible to omit getters/setters. It actually may be ok in some cases. The real problem with the proposed pattern shown here is mutability.

The problem is once you pass an object reference out containing non-final, public fields. Anything else with that reference is free to modify those fields. You no longer have any control over the state of that object. (Think what would happen if Strings were mutable.)

It gets bad when that object is an important part of the internal state of another, you've just exposed internal implementation. To prevent this, a copy of the object must be returned instead. This works, but can cause massive GC pressure from tons of single-use copies created.

If you have public fields, consider making the class read-only. Add the fields as parameters to the constructor, and mark the fields final. Otherwise make sure you're not exposing internal state, and if you need to construct new instances for a return value, make sure it won't be called excessively.

See: "Effective Java" by Joshua Bloch -- Item #13: Favor Immutability.

PS: Also keep in mind, all JVMs these days will optimize away the getMethod if possible, resulting in just a single field-read instruction.

This answer builds on Zach Smith's answer by resetting the identity column as well:

1. Disabling all constraints
2. Iterating through all tables except those you choose to exclude
3. Deletes all rows from the table
4. Resets the identity column if one exists
5. Re-enables all constraints

Here is the query:

-- Disable all constraints in the database
EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all"

declare @catalog nvarchar(250);
declare @schema nvarchar(250);
declare @tbl nvarchar(250);
DECLARE i CURSOR LOCAL FAST_FORWARD FOR select
                                        TABLE_CATALOG,
                                        TABLE_SCHEMA,
                                        TABLE_NAME
                                        from INFORMATION_SCHEMA.TABLES
                                        where
                                        TABLE_TYPE = 'BASE TABLE'
                                        AND TABLE_NAME != 'sysdiagrams'
                                        AND TABLE_NAME != '__RefactorLog'
                                        -- Optional
                                        -- AND (TABLE_SCHEMA = 'dbo')

OPEN i;
FETCH NEXT FROM i INTO @catalog, @schema, @tbl;
WHILE @@FETCH_STATUS = 0
    BEGIN
        DECLARE @sql NVARCHAR(MAX) = N'DELETE FROM [' + @catalog + '].[' + @schema + '].[' + @tbl + '];'
        /* Make sure these are the commands you want to execute before executing */
        PRINT 'Executing statement: ' + @sql
        --EXECUTE sp_executesql @sql

        -- Reset identity counter if one exists
        IF ((SELECT OBJECTPROPERTY( OBJECT_ID(@catalog + '.' + @schema + '.' + @tbl), 'TableHasIdentity')) = 1)
        BEGIN
            SET @sql = N'DBCC CHECKIDENT ([' + @catalog + '.' + @schema + '.' + @tbl + '], RESEED, 0)'
            PRINT 'Executing statement: ' + @sql
            --EXECUTE sp_executesql @sql
        END     

        FETCH NEXT FROM i INTO @catalog, @schema, @tbl;
    END
CLOSE i;
DEALLOCATE i;

-- Re-enable all constraints again
EXEC sp_msforeachtable "ALTER TABLE ? WITH CHECK CHECK CONSTRAINT all"

\n

That means a new line is printed.

As a side note there is no need to write that extra line . There is an built in inbuilt function there.

 println()  //prints the content in new line

Learn more from docs

In Java 7+ a few of the previous answers can be combined to allow retrieval of any path segment from a URI, rather than just the last segment. We can convert the URI to a java.nio.file.Path object, to take advantage of its getName(int) method.

Unfortunately, the static factory Paths.get(uri) is not built to handle the http scheme, so we first need to separate the scheme from the URI's path.

URI uri = URI.create("http://base_path/some_segment/id");
Path path = Paths.get(uri.getPath());
String last = path.getFileName().toString();
String secondToLast = path.getName(path.getNameCount() - 2).toString();

To get the last segment in one line of code, simply nest the lines above.

Paths.get(URI.create("http://base_path/some_segment/id").getPath()).getFileName().toString()

To get the second-to-last segment while avoiding index numbers and the potential for off-by-one errors, use the getParent() method.

String secondToLast = path.getParent().getFileName().toString();

Note the getParent() method can be called repeatedly to retrieve segments in reverse order. In this example, the path only contains two segments, otherwise calling getParent().getParent() would retrieve the third-to-last segment.

As already mentioned, awk is the right tool for this. If you don't want to use awk, instead of parsing output of "ls -l" line by line, you could iterate over all files and do an "ls -l" for each individual file like this:

for x in * ; do echo `ls -ld $x` ; done

Since Java 8:

List<String> myList = map.keySet().stream().collect(Collectors.toList());

Try UISegmentedControl. It behaves similarly to radio buttons -- presents an array of choices and lets the user pick 1.

For those who use jQuery http://jsfiddle.net/EppA2/3/

function getRows(selector) {
    var height = $(selector).height();
    var line_height = $(selector).css('line-height');
    line_height = parseFloat(line_height)
    var rows = height / line_height;
    return Math.round(rows);
}

Two of them always produce the same answer:

• COUNT(*) counts the number of rows
• COUNT(1) also counts the number of rows

Assuming the pk is a primary key and that no nulls are allowed in the values, then

• COUNT(pk) also counts the number of rows

However, if pk is not constrained to be not null, then it produces a different answer:

• COUNT(possibly_null) counts the number of rows with non-null values in the column possibly_null.

• COUNT(DISTINCT pk) also counts the number of rows (because a primary key does not allow duplicates).

• COUNT(DISTINCT possibly_null_or_dup) counts the number of distinct non-null values in the column possibly_null_or_dup.

• COUNT(DISTINCT possibly_duplicated) counts the number of distinct (necessarily non-null) values in the column possibly_duplicated when that has the NOT NULL clause on it.

Normally, I write COUNT(*); it is the original recommended notation for SQL. Similarly, with the EXISTS clause, I normally write WHERE EXISTS(SELECT * FROM ...) because that was the original recommend notation. There should be no benefit to the alternatives; the optimizer should see through the more obscure notations.

You can use like this too:

SELECT * FROM fiberbox WHERE fiber IN('140 ', '1938 ', '1940 ')

No, it only contains a free 30 day trial. But I think there would be a package if you buy Visual Studio + Xamarin.

Part 1: Advanced Bash Scripting Guide

As always, the Advanced Bash Scripting Guide has great information: (This was linked in another answer, but to a non-canonical URL.)

1: Catchall for general errors
2: Misuse of shell builtins (according to Bash documentation)
126: Command invoked cannot execute
127: "command not found"
128: Invalid argument to exit
128+n: Fatal error signal "n"
255: Exit status out of range (exit takes only integer args in the range 0 - 255)

Part 2: sysexits.h

The ABSG references sysexits.h.

On Linux:

$ find /usr -name sysexits.h
/usr/include/sysexits.h
$ cat /usr/include/sysexits.h

/*
 * Copyright (c) 1987, 1993
 *  The Regents of the University of California.  All rights reserved.

 (A whole bunch of text left out.)

#define EX_OK           0       /* successful termination */
#define EX__BASE        64      /* base value for error messages */
#define EX_USAGE        64      /* command line usage error */
#define EX_DATAERR      65      /* data format error */
#define EX_NOINPUT      66      /* cannot open input */    
#define EX_NOUSER       67      /* addressee unknown */    
#define EX_NOHOST       68      /* host name unknown */
#define EX_UNAVAILABLE  69      /* service unavailable */
#define EX_SOFTWARE     70      /* internal software error */
#define EX_OSERR        71      /* system error (e.g., can't fork) */
#define EX_OSFILE       72      /* critical OS file missing */
#define EX_CANTCREAT    73      /* can't create (user) output file */
#define EX_IOERR        74      /* input/output error */
#define EX_TEMPFAIL     75      /* temp failure; user is invited to retry */
#define EX_PROTOCOL     76      /* remote error in protocol */
#define EX_NOPERM       77      /* permission denied */
#define EX_CONFIG       78      /* configuration error */

#define EX__MAX 78      /* maximum listed value */

You can use

git commit -m "remove files" -a
git push

After you had delete files manually.

The problem occurs because webpack-dev-server 2.4.4 adds a host check. You can disable it by adding this to your webpack config:

 devServer: {
    compress: true,
    disableHostCheck: true,   // That solved it

 }      

EDIT: Please note, this fix is insecure.

Please see the following answer for a secure solution: https://stackoverflow.com/a/43621275/5425585

I haven't played around with it much but eclipse/pydev feels nice.

You can simply use:

#contentInfo_new br {display:none;}

Same as AMIB answer, for soft delete error "Unknown column 'table_alias.deleted_at'", just add ->withTrashed() then handle it yourself like ->whereRaw('items_alias.deleted_at IS NULL')

Here is another REST-only working example for Google Service Accounts accessing G Suite Users and Groups, authenticating through JWT. This was only possible through reflection of Google libraries, since Google documentation of these APIs are beyond terrible. Anyone used to code in MS technologies will have a hard time figuring out how everything goes together in Google services.

$iss = "<name>@<serviceaccount>.iam.gserviceaccount.com"; # The email address of the service account.
$sub = "[email protected]"; # The user to impersonate (required).
$scope = "https://www.googleapis.com/auth/admin.directory.user.readonly https://www.googleapis.com/auth/admin.directory.group.readonly";
$certPath = "D:\temp\mycertificate.p12";
$grantType = "urn:ietf:params:oauth:grant-type:jwt-bearer";

# Auxiliary functions
function UrlSafeEncode([String] $Data) {
    return $Data.Replace("=", [String]::Empty).Replace("+", "-").Replace("/", "_");
}

function UrlSafeBase64Encode ([String] $Data) {
    return (UrlSafeEncode -Data ([Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($Data))));
}

function KeyFromCertificate([System.Security.Cryptography.X509Certificates.X509Certificate2] $Certificate) {
    $privateKeyBlob = $Certificate.PrivateKey.ExportCspBlob($true);
    $key = New-Object System.Security.Cryptography.RSACryptoServiceProvider;
    $key.ImportCspBlob($privateKeyBlob);
    return $key;
}

function CreateSignature ([Byte[]] $Data, [System.Security.Cryptography.X509Certificates.X509Certificate2] $Certificate) {
    $sha256 = [System.Security.Cryptography.SHA256]::Create();
    $key = (KeyFromCertificate $Certificate);
    $assertionHash = $sha256.ComputeHash($Data);
    $sig = [Convert]::ToBase64String($key.SignHash($assertionHash, "2.16.840.1.101.3.4.2.1"));
    $sha256.Dispose();
    return $sig;
}

function CreateAssertionFromPayload ([String] $Payload, [System.Security.Cryptography.X509Certificates.X509Certificate2] $Certificate) {
    $header = @"
{"alg":"RS256","typ":"JWT"}
"@;
    $assertion = New-Object System.Text.StringBuilder;

    $assertion.Append((UrlSafeBase64Encode $header)).Append(".").Append((UrlSafeBase64Encode $Payload)) | Out-Null;
    $signature = (CreateSignature -Data ([System.Text.Encoding]::ASCII.GetBytes($assertion.ToString())) -Certificate $Certificate);
    $assertion.Append(".").Append((UrlSafeEncode $signature)) | Out-Null;
    return $assertion.ToString();
}

$baseDateTime = New-Object DateTime(1970, 1, 1, 0, 0, 0, [DateTimeKind]::Utc);
$timeInSeconds = [Math]::Truncate([DateTime]::UtcNow.Subtract($baseDateTime).TotalSeconds);

$jwtClaimSet = @"
{"scope":"$scope","email_verified":false,"iss":"$iss","sub":"$sub","aud":"https://oauth2.googleapis.com/token","exp":$($timeInSeconds + 3600),"iat":$timeInSeconds}
"@;


$cert = New-Object System.Security.Cryptography.X509Certificates.X509Certificate2($certPath, "notasecret", [System.Security.Cryptography.X509Certificates.X509KeyStorageFlags]::Exportable);
$jwt = CreateAssertionFromPayload -Payload $jwtClaimSet -Certificate $cert;


# Retrieve the authorization token.
$authRes = Invoke-WebRequest -Uri "https://oauth2.googleapis.com/token" -Method Post -ContentType "application/x-www-form-urlencoded" -UseBasicParsing -Body @"
assertion=$jwt&grant_type=$([Uri]::EscapeDataString($grantType))
"@;
$authInfo = ConvertFrom-Json -InputObject $authRes.Content;

$resUsers = Invoke-WebRequest -Uri "https://www.googleapis.com/admin/directory/v1/users?domain=<required_domain_name_dont_trust_google_documentation_on_this>" -Method Get -Headers @{
    "Authorization" = "$($authInfo.token_type) $($authInfo.access_token)"
}

$users = ConvertFrom-Json -InputObject $resUsers.Content;

$users.users | ft primaryEmail, isAdmin, suspended;

class myFileReaderThatStarts with arguments
{

 class MissingArgumentException extends Exception{      
      MissingArgumentException(String s)
  {
     super(s);
  }

   }    
public static void main(String[] args) throws MissingArgumentException
{
//You can test args array for value 
if(args.length>0)
{
    // do something with args[0]
}
else
{
// default in a path 
// or 
   throw new MissingArgumentException("You need to start this program with a path");
}
}

The other answers are totally fine:

• One does not need a special syntax to support generics in Python
• Python uses duck typing as pointed out by André.

However, if you still want a typed variant, there is a built-in solution since Python 3.5.

Generic classes:

from typing import TypeVar, Generic

T = TypeVar('T')

class Stack(Generic[T]):
    def __init__(self) -> None:
        # Create an empty list with items of type T
        self.items: List[T] = []

    def push(self, item: T) -> None:
        self.items.append(item)

    def pop(self) -> T:
        return self.items.pop()

    def empty(self) -> bool:
        return not self.items

# Construct an empty Stack[int] instance
stack = Stack[int]()
stack.push(2)
stack.pop()
stack.push('x')        # Type error

Generic functions:

from typing import TypeVar, Sequence

T = TypeVar('T')      # Declare type variable

def first(seq: Sequence[T]) -> T:
    return seq[0]

def last(seq: Sequence[T]) -> T:
    return seq[-1]


n = first([1, 2, 3])  # n has type int.

Reference: mypy documentation about generics.

You can use File.ReadAllBytes() method to read any file into byte array. To write byte array into file, just use File.WriteAllBytes() method.

Hope this helps.

You can find more information and sample code here.

the most simple and straight forward is to create a FTP login. Here is a little and easy to understand tutorial site on stackoverflow itself, how to set things up in 2min... Setting up FTP on Amazon Cloud Server

EDIT: as of Java8 you'd better use Files class:

Path resultingPath = Files.createDirectories('A/B');

I don't know if this ultimately fixes your problem but class File has method mkdirs() which fully creates the path specified by the file.

File f = new File("/A/B/");
f.mkdirs();

This should not be difficult. When creating a cell for your table, add a UITextField object to the cell's content view

UITextField *txtField = [[UITextField alloc] initWithFrame....]
...
[cell.contentView addSubview:txtField]

Set the delegate of the UITextField as self (ie your viewcontroller) Give a tag to the text field so you can identify which textfield was edited in your delegate methods. The keyboard should pop up when the user taps the text field. I got it working like this. Hope it helps.

In java 8 , It's really easy to get timestamp in UTC by using java 8 java.time.Instant library :

Instant.now();

That few word of code will return the UTC Timestamp.

This worked for me perfectly using only APP ID:

 NSString *urlString = [NSString stringWithFormat:@"http://itunes.apple.com/app/id%@",YOUR_APP_ID];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:urlString]];

The number of redirects is ZERO.

[[foo for x in xrange(10)] for y in xrange(10)]

In standard SQL syntax, you would use:

WHERE mydate <= DATE '2008-11-20'

That is, the keyword DATE should precede the string. In some DBMS, however, you don't need to be that explicit; the system will convert the DATE column into a string, or the string into a DATE value, automatically. There are nominally some interesting implications if the DATE is converted into a string - if you happen to have dates in the first millennium (0001-01-01 .. 0999-12-31) and the leading zero(es) are omitted by the formatting system.

The command git branch -a shows remote branches that exist in your local repository. This may sound a bit confusing but to understand it, you have to understand that there is a difference between a remote branch, and a branch that exists in a remote repository. Remote branches are local branches that map to branches of the remote repository. So the set of remote branches represent the state of the remote repository.

The usual way to update the list of remote branches is to use git fetch. This automatically gets an updated list of branches from the remote and sets up remote branches in the local repository, also fetching any commit objects you may be missing.

However, by default, git fetch does not remove remote branches that no longer have a counterpart branch on the remote. In order to do that, you explicitly need to prune the list of remote branches:

git fetch --prune

This will automatically get rid of remote branches that no longer exist on the remote. Afterwards, git branch -r will show you an updated list of branches that really exist on the remote: And those you can delete using git push.

That being said, in order to use git push --delete, you need to specify the name of the branch on the remote repository; not the name of your remote branch. So to delete the branch test (represented by your remote branch origin/test), you would use git push origin --delete test.

When you send bytes from a buffer with a normal TCP socket, the send function returns the number of bytes of the buffer that were sent. If it is a non-blocking socket or a non-blocking send then the number of bytes sent may be less than the size of the buffer. If it is a blocking socket or blocking send, then the number returned will match the size of the buffer but the call may block. With WebSockets, the data that is passed to the send method is always either sent as a whole "message" or not at all. Also, browser WebSocket implementations do not block on the send call.

But there are more important differences on the receiving side of things. When the receiver does a recv (or read) on a TCP socket, there is no guarantee that the number of bytes returned corresponds to a single send (or write) on the sender side. It might be the same, it may be less (or zero) and it might even be more (in which case bytes from multiple send/writes are received). With WebSockets, the recipient of a message is event-driven (you generally register a message handler routine), and the data in the event is always the entire message that the other side sent.

Note that you can do message based communication using TCP sockets, but you need some extra layer/encapsulation that is adding framing/message boundary data to the messages so that the original messages can be re-assembled from the pieces. In fact, WebSockets is built on normal TCP sockets and uses frame headers that contains the size of each frame and indicate which frames are part of a message. The WebSocket API re-assembles the TCP chunks of data into frames which are assembled into messages before invoking the message event handler once per message.

easiest way

put the canvas into paragraph tags like this:

<p align="center">_x000D_
  <canvas id="myCanvas" style="background:#220000" width="700" height="500" align="right"></canvas>_x000D_
</p>

When calling the function, follow it by return false example:

<input  type="submit" value="Add" onclick="addNewPayment();return false;">

Here's a Bash one-liner to hit the same server repeatedly:

for i in {1..1000}; do curl -s -o /dev/null -w "%{time_total}\n" http://server/get_things; done

I found a better way to render razor view page when I got error with the methods above, this solution for both web form environment and mvc environment. No controller is needed.

Here is the code example, in this example I simulated a mvc action with an async http handler:

    /// <summary>
    /// Enables processing of HTTP Web requests asynchronously by a custom HttpHandler that implements the IHttpHandler interface.
    /// </summary>
    /// <param name="context">An HttpContext object that provides references to the intrinsic server objects.</param>
    /// <returns>The task to complete the http request.</returns>
    protected override async Task ProcessRequestAsync(HttpContext context)
    {
        if (this._view == null)
        {
            this.OnError(context, new FileNotFoundException("Can not find the mvc view file.".Localize()));
            return;
        }
        object model = await this.LoadModelAsync(context);
        WebPageBase page = WebPageBase.CreateInstanceFromVirtualPath(this._view.VirtualPath);
        using (StringWriter sw = new StringWriter())
        {
            page.ExecutePageHierarchy(new WebPageContext(new HttpContextWrapper(context), page, model), sw);
            await context.Response.Output.WriteAsync(sw.GetStringBuilder().ToString());
        }
    }

In terminal run this command in the folder where the systlesheets are:

sass --watch style.scss:style.css 

Source:

http://sass-lang.com/

When ever it notices a change in the .scss file it will update your .css

This only works when your .scss is on your local machine. Try copying the code to a file and running it locally.

just change the extension to .bmp.

Do this:

ByteArrayOutputStream bytes = new ByteArrayOutputStream();
_bitmapScaled.compress(Bitmap.CompressFormat.PNG, 40, bytes);

//you can create a new file name "test.BMP" in sdcard folder.
File f = new File(Environment.getExternalStorageDirectory()
                        + File.separator + "test.bmp")

It'll sound that I'm just fooling around, but try it once and it'll get saved in BMP format. Cheers!

If you are using php-intl to localize your application, you probably want to use ResourceBundle::getLocales() instead of static list that you maintain yourself. It can also give you locales for particular language.

<?php
print_r(ResourceBundle::getLocales(''));

/* Output might show
  * Array
  * (
  *    [0] => af
  *    [1] => af_NA
  *    [2] => af_ZA
  *    [3] => am
  *    [4] => am_ET
  *    [5] => ar
  *    [6] => ar_AE
  *    [7] => ar_BH
  *    [8] => ar_DZ
  *    [9] => ar_EG
  *    [10] => ar_IQ
  *  ...
  */
?>

When I used policy before I set the default authentication scheme into it as well. I had modified the DefaultPolicy so it was slightly different. However the same should work for add policy as well.

services.AddAuthorization(options =>
        {
            options.AddPolicy(DefaultAuthorizedPolicy, policy =>
            {
                policy.Requirements.Add(new TokenAuthRequirement());
                policy.AuthenticationSchemes = new List<string>()
                                {
                                    CookieAuthenticationDefaults.AuthenticationScheme
                                }
            });
        });

Do take into consideration that by Default AuthenticationSchemes property uses a read only list. I think it would be better to implement that instead of List as well.

Since I think you are new with Python, lets do the long way, iterate thru your list using for loop and multiply and append each element to a new list.

using for loop

lst = [5, 20 ,15]
product = []
for i in lst:
    product.append(i*5)
print product

using list comprehension, this is also same as using for-loop but more 'pythonic'

lst = [5, 20 ,15]

prod = [i * 5 for i in lst]
print prod

%g can do this:

#include <stdio.h>
int main() {
  float w = 234.567;
  char x[__SIZEOF_FLOAT__];
  sprintf(x, "%g", w);
  puts(x);
}

Try This

var data = 'allow~5'; 
var result=data.split('~');

RESULT

alert(result[0]);

What about providing a custom N-Factor authentication mechanism?

Before combining available methods, let's assume we can perform the following:

1) Hard-code inside the Java program

2) Store in a .properties file

3) Ask user to type password from command line

4) Ask user to type password from a form

5) Ask user to load a password-file from command line or a form

6) Provide the password through network

7) many alternatives (eg Draw A Secret, Fingerprint, IP-specific, bla bla bla)

1st option: We could make things more complicated for an attacker by using obfuscation, but this is not considered a good countermeasure. A good coder can easily understand how it works if he/she can access the file. We could even export a per-user binary (or just the obfuscation part or key-part), so an attacker must have access to this user-specific file, not another distro. Again, we should find a way to change passwords, eg by recompiling or using reflection to on-the-fly change class behavior.

2nd option: We can store the password in the .properties file in an encrypted format, so it's not directly visible from an attacker (just like jasypt does). If we need a password manager we'll need a master password too which again should be stored somewhere - inside a .class file, the keystore, kernel, another file or even in memory - all have their pros and cons.
But, now users will just edit the .properties file for password change.

3rd option: type the password when running from command line e.g. java -jar /myprogram.jar -p sdflhjkiweHIUHIU8976hyd.

This doesn't require the password to be stored and will stay in memory. However, history commands and OS logs, may be your worst enemy here. To change passwords on-the-fly, you will need to implement some methods (eg listen for console inputs, RMI, sockets, REST bla bla bla), but the password will always stay in memory.

One can even temporarily decrypt it only when required -> then delete the decrypted, but always keep the encrypted password in memory. Unfortunately, the aforementioned method does not increase security against unauthorized in-memory access, because the person who achieves that, will probably have access to the algorithm, salt and any other secrets being used.

4th option: provide the password from a custom form, rather than the command line. This will circumvent the problem of logging exposure.

5th option: provide a file as a password stored previously on a another medium -> then hard delete file. This will again circumvent the problem of logging exposure, plus no typing is required that could be shoulder-surfing stolen. When a change is required, provide another file, then delete again.

6th option: again to avoid shoulder-surfing, one can implement an RMI method call, to provide the password (through an encrypted channel) from another device, eg via a mobile phone. However, you now need to protect your network channel and access to the other device.

I would choose a combination of the above methods to achieve maximum security so one would have to access the .class files, the property file, logs, network channel, shoulder surfing, man in the middle, other files bla bla bla. This can be easily implemented using a XOR operation between all sub_passwords to produce the actual password.

We can't be protected from unauthorized in-memory access though, this can only be achieved by using some access-restricted hardware (eg smartcards, HSMs, SGX), where everything is computed into them, without anyone, even the legitimate owner being able to access decryption keys or algorithms. Again, one can steal this hardware too, there are reported side-channel attacks that may help attackers in key extraction and in some cases you need to trust another party (eg with SGX you trust Intel). Of course, situation may worsen when secure-enclave cloning (de-assembling) will be possible, but I guess this will take some years to be practical.

Also, one may consider a key sharing solution where the full key is split between different servers. However, upon reconstruction, the full key can be stolen. The only way to mitigate the aforementioned issue is by secure multiparty computation.

We should always keep in mind that whatever the input method, we need to ensure we are not vulnerable from network sniffing (MITM attacks) and/or key-loggers.

You can not make reference to static variable from non-static method. To understand this , you need to understand the difference between static and non-static.

Static variables are class variables , they belong to class with their only one instance , created at the first only. Non-static variables are initialized every time you create an object of the class.

Now coming to your question, when you use new() operator we will create copy of every non-static filed for every object, but it is not the case for static fields. That's why it gives compile time error if you are referencing a static variable from non-static method.

If you have a list of lists, you only needed to use ...

import numpy as np
...
npa = np.asarray(someListOfLists, dtype=np.float32)

per this LINK in the scipy / numpy documentation. You just needed to define dtype inside the call to asarray.

First, install the HTMLAgilityPack nuget package into your project.

Then, as an example:

HtmlAgilityPack.HtmlDocument htmlDoc = new HtmlAgilityPack.HtmlDocument();

// There are various options, set as needed
htmlDoc.OptionFixNestedTags=true;

// filePath is a path to a file containing the html
htmlDoc.Load(filePath);

// Use:  htmlDoc.LoadHtml(xmlString);  to load from a string (was htmlDoc.LoadXML(xmlString)

// ParseErrors is an ArrayList containing any errors from the Load statement
if (htmlDoc.ParseErrors != null && htmlDoc.ParseErrors.Count() > 0)
{
    // Handle any parse errors as required

}
else
{

    if (htmlDoc.DocumentNode != null)
    {
        HtmlAgilityPack.HtmlNode bodyNode = htmlDoc.DocumentNode.SelectSingleNode("//body");

        if (bodyNode != null)
        {
            // Do something with bodyNode
        }
    }
}

(NB: This code is an example only and not necessarily the best/only approach. Do not use it blindly in your own application.)

The HtmlDocument.Load() method also accepts a stream which is very useful in integrating with other stream oriented classes in the .NET framework. While HtmlEntity.DeEntitize() is another useful method for processing html entities correctly. (thanks Matthew)

HtmlDocument and HtmlNode are the classes you'll use most. Similar to an XML parser, it provides the selectSingleNode and selectNodes methods that accept XPath expressions.

Pay attention to the HtmlDocument.Option?????? boolean properties. These control how the Load and LoadXML methods will process your HTML/XHTML.

There is also a compiled help file called HtmlAgilityPack.chm that has a complete reference for each of the objects. This is normally in the base folder of the solution.

Update

I later found that, there is an official way to see all the routes, by going to http://localhost:3000/rails/info/routes. Official docs: https://guides.rubyonrails.org/routing.html#listing-existing-routes

Though, it may be late, But I love the error page which displays all the routes. I usually try to go at /routes (or some bogus) path directly from the browser. Rails server automatically gives me a routing error page as well as all the routes and paths defined. That was very helpful :)

So, Just go to http://localhost:3000/routes

The other answers are correct, however double-check your locale before using "%,d":

Locale.setDefault(Locale.US);
int bigNumber = 35634646;
String formattedNumber = String.format("%,d", bigNumber);
System.out.println(formattedNumber);

Locale.setDefault(new Locale("pl", "PL"));
formattedNumber = String.format("%,d", bigNumber);
System.out.println(formattedNumber);

Result:

35,634,646
35 634 646

I had a similar requirement to dump the contents of json file for logging, something quick and easy:

print(json.dumps(json.load(open(os.path.join('<myPath>', '<myjson>'), "r")), indent = 4 ))

if you use it often then put it in a function:

def pp_json_file(path, file):
    print(json.dumps(json.load(open(os.path.join(path, file), "r")), indent = 4))

as of the django development, there exists bulk_create as an object manager method which takes as input an array of objects created using the class constructor. check out django docs

If you want more alternatives, You can try installing a Modern command line HTTP client like httpie which is available for most of the Operating Systems with package managers like brew, apt-get, pip, yum etc

eg:- For OSX

brew install httpie

Then you can use it on command line with various options

http GET https://www.google.com

You could probably use the LIKE clause to do some simple string matching:

SELECT * FROM items WHERE items.xml LIKE '%123456%'

If you need more advanced functionality, take a look at MySQL's fulltext-search functions here: http://dev.mysql.com/doc/refman/5.1/en/fulltext-search.html

SELECT field1, 
       field2,
       'example' AS newfield
FROM TABLE1

This will add a column called "newfield" to the output, and its value will always be "example".

If you are using Windows, then the WPN-XM Server Stack might be a suitable alternative.

Found another small problem with this code... or at least it was problematic when I tried to implement it.

The buttons in frmMain do not return a compatible value, using VS2010 I added the following and everything started working fine.

public static ResultFromFrmMain Execute() {
     using (var f = new frmMain()) {

          f.buttonOK.DialogResult = DialogResult.OK;
          f.buttonCancel.DialogResult = DialogResult.Cancel;

          var result = new ResultFromFrmMain();
          result.Result = f.ShowDialog();

          if (result.Result == DialogResult.OK) {
             // fill other values
          }
          return result;
     }
}

After adding the two button values, the dialog worked great! Thanks for the example, it really helped.

I understand that this is a response to an old post-

I like the If() function combined with Index()/Match():

=IF(B2>0,"x",INDEX($H$2:$I$9,MATCH(A2,$H$2:$H$9,0),2))

The if function compare what is in column b and if it is greater than 0, it returns x, if not it uses the array (table of information) identified by the Index() function and selected by Match() to return the value that a corresponds to.

The Index array has the absolute location set $H$2:$I$9 (the dollar signs) so that the place it points to will not change as the formula is copied. The row with the value that you want returned is identified by the Match() function. Match() has the added value of not needing a sorted list to look through that Vlookup() requires. Match() can find the value with a value: 1 less than, 0 exact, -1 greater than. I put a zero in after the absolute Match() array $H$2:$H$9 to find the exact match. For the column that value of the Index() array that one would like returned is entered. I entered a 2 because in my array the return value was in the second column. Below my index array looked like this:

32   1420

36   1650

40   1790

44   1860

55   2010

The value in your 'a' column to search for in the list is in the first column in my example and the corresponding value that is to be return is to the right. The look up/reference table can be on any tab in the work book - or even in another file. -Book2 is the file name, and Sheet2 is the 'other tab' name.

=IF(B2>0,"x",INDEX([Book2]Sheet2!$A$1:$B$8,MATCH(A2,[Book2]Sheet2!$A$1:$A$8,0),2))

If you do not want x return when the value of b is greater than zero delete the x for a 'blank'/null equivalent or maybe put a 0 - not sure what you would want there.

Below is beginning of the function with the x deleted.

=IF(B2>0,"",INDEX...

The easiest way to calculate number of neurons in one layer is: Param value / (number of units * 4)

• Number of units is in predictivemodel.add(Dense(514,...)
• Param value is Param in model.summary() function

For example in Paul Lo's answer , number of neurons in one layer is 264710 / (514 * 4 ) = 130

Link statically to libstdc++ with -static-libstdc++ gcc option.

Apparently this would be possible in settings.gradle with something like this.

rootProject.name = 'someName'
gradle.rootProject {
    it.sourceCompatibility = '1.7'
}

I recently received advice that a project property can be set by using a closure which will be called later when the Project is available.

For anyone using Api Gateway's HTTP API and the proxy route ANY /{proxy+}

You will need to explicitly define your route methods in order for CORS to work.

Wish this was more explicit in the AWS Docs for Configuring CORS for an HTTP API

Was on a 2 hour call with AWS Support and they looped in one of their senior HTTP API developers, who made this recommendation.

Hopefully this post can save some time and effort for those who are working with Api Gateway HTTP API.

This code is probably good for Python 2. But in Python 3, this will cause an issue, something related to bit encoding. I was trying to make a simple TCP server and encountered the same problem. Encoding worked for me. Try this with sendto command.

clientSocket.sendto(message.encode(),(serverName, serverPort))

Similarly you would use .decode() to receive the data on the UDP server side, if you want to print it exactly as it was sent.

My fix was to change the web.config file to correlate with my new server name for SQL Connection (IT Security had just done a netdom rename on my development box.

Header exists:

if (Request.Headers["XYZComponent"] != null)

or even better:

string xyzHeader = Request.Headers["XYZComponent"];
bool isXYZ;

if (bool.TryParse(xyzHeader, out isXYZ) && isXYZ)

which will check whether it is set to true. This should be fool-proof because it does not care on leading/trailing whitespace and is case-insensitive (bool.TryParse does work on null)

Addon: You could make this more simple with this extension method which returns a nullable boolean. It should work on both invalid input and null.

public static bool? ToBoolean(this string s)
{
    bool result;

    if (bool.TryParse(s, out result))
        return result;
    else
        return null;
}

Usage (because this is an extension method and not instance method this will not throw an exception on null - it may be confusing, though):

if (Request.Headers["XYZComponent"].ToBoolean() == true)

The FileInfo class' Length property returns the size of the file (not the size on disk). If you want a formatted file size (i.e. 15 KB) rather than a long byte value you can use CSharpLib, a package I've made that adds more functionality to the FileInfo class. Here's an example:

using CSharpLib;
FileInfo info = new FileInfo("sample.txt");
Console.WriteLine(info.FormatBytes());  // Output: 15 MB

try changing this part,

<input type="checkbox" name="newsletter[]" value="newsletter" checked>i want to sign up   for newsletter

for this

<input type="checkbox" name="newsletter" value="newsletter" checked>i want to sign up   for newsletter

<?php 
    if(isset($_GET['delete'])){
        $delurl=$_GET['delete'];
        unlink($delurl);
    }
?>

<?php
if ($handle = opendir('.')) {
    while (false !== ($entry = readdir($handle))) {
        if ($entry != "." && $entry != "..") {
            echo "<a href=\"$entry\">$entry</a> | <a href=\"?delete=$entry\">Delete</a><br>";
        }
    }
    closedir($handle);
}
?>

This is It

The next() moves the cursor froward one row from its current position in the resultset. so its evident that if(rs.next()) means that if the next row is not null (means if it exist), Go Ahead.

Now w.r.t your problem,

ResultSet rs = stmt.executeQuery(sql);  //This is wrong
                                  ^       

note that executeQuery(String) is used in case you use a sql-query as string.

Whereas when you use a PreparedStatement, use executeQuery() which executes the SQL query in this PreparedStatement object and returns the ResultSet object generated by the query.

Solution :

Use : ResultSet rs = stmt.executeQuery();

To solve CLR20r3 problem set - Local User Policy \ Computer Configuration \ Windows Settings \ Security Settings \ Local Policies \ Security Options - System cryptography: Use FIPS 140 compliant cryptographic algorithms, including encryption, hashing and signing - Disable

import itertools

top5 = itertools.islice(array, 5)

I had the same problem. Restart did not work for me. There was a process called VBSCompiler was running in task manager. I had to end the process to fix this error.

Item 10: Obey the general contract when overriding equals

According to Effective Java, Overriding the equals method seems simple, but there are many ways to get it wrong, and consequences can be dire. The easiest way to avoid problems is not to override the equals method, in which case each instance of the class is equal only to itself. This is the right thing to do if any of the following conditions apply:

• Each instance of the class is inherently unique. This is true for classes such as Thread that represent active entities rather than values. The equals implementation provided by Object has exactly the right behavior for these classes.

• There is no need for the class to provide a “logical equality” test. For example, java.util.regex.Pattern could have overridden equals to check whether two Pattern instances represented exactly the same regular expression, but the designers didn’t think that clients would need or want this functionality. Under these circumstances, the equals implementation inherited from Object is ideal.

• A superclass has already overridden equals, and the superclass behavior is appropriate for this class. For example, most Set implementations inherit their equals implementation from AbstractSet, List implementations from AbstractList, and Map implementations from AbstractMap.

• The class is private or package-private, and you are certain that its equals method will never be invoked. If you are extremely risk-averse, you can override the equals method to ensure that it isn’t invoked accidentally:

The equals method implements an equivalence relation. It has these properties:

• Reflexive: For any non-null reference value x, x.equals(x) must return true.

• Symmetric: For any non-null reference values x and y, x.equals(y) must return true if and only if y.equals(x) returns true.

• Transitive: For any non-null reference values x, y, z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) must return true.

• Consistent: For any non-null reference values x and y, multiple invocations of x.equals(y) must consistently return true or consistently return false, provided no information used in equals comparisons is modified.

• For any non-null reference value x, x.equals(null) must return false.

Here’s a recipe for a high-quality equals method:

1. Use the == operator to check if the argument is a reference to this object. If so, return true. This is just a performance optimization but one that is worth doing if the comparison is potentially expensive.

2. Use the instanceof operator to check if the argument has the correct type. If not, return false. Typically, the correct type is the class in which the method occurs. Occasionally, it is some interface implemented by this class. Use an interface if the class implements an interface that refines the equals contract to permit comparisons across classes that implement the interface. Collection interfaces such as Set, List, Map, and Map.Entry have this property.

3. Cast the argument to the correct type. Because this cast was preceded by an instanceof test, it is guaranteed to succeed.

4. For each “significant” field in the class, check if that field of the argument matches the corresponding field of this object. If all these tests succeed, return true; otherwise, return false. If the type in Step 2 is an interface, you must access the argument’s fields via interface methods; if the type is a class, you may be able to access the fields directly, depending on their accessibility.

5. For primitive fields whose type is not float or double, use the == operator for comparisons; for object reference fields, call the equals method recursively; for float fields, use the static Float.compare(float, float) method; and for double fields, use Double.compare(double, double). The special treatment of float and double fields is made necessary by the existence of Float.NaN, -0.0f and the analogous double values; While you could compare float and double fields with the static methods Float.equals and Double.equals, this would entail autoboxing on every comparison, which would have poor performance. For array fields, apply these guidelines to each element. If every element in an array field is significant, use one of the Arrays.equals methods.

6. Some object reference fields may legitimately contain null. To avoid the possibility of a NullPointerException, check such fields for equality using the static method Objects.equals(Object, Object).

   // Class with a typical equals method
   
   public final class PhoneNumber {
   
       private final short areaCode, prefix, lineNum;
   
       public PhoneNumber(int areaCode, int prefix, int lineNum) {
   
           this.areaCode = rangeCheck(areaCode,  999, "area code");
   
           this.prefix   = rangeCheck(prefix,    999, "prefix");
   
           this.lineNum  = rangeCheck(lineNum,  9999, "line num");
   
       }
   
       private static short rangeCheck(int val, int max, String arg) {
   
           if (val < 0 || val > max)
   
              throw new IllegalArgumentException(arg + ": " + val);
   
           return (short) val;
   
       }
   
       @Override public boolean equals(Object o) {
           if (o == this)
               return true;
           if (!(o instanceof PhoneNumber))
               return false;
           PhoneNumber pn = (PhoneNumber)o;
           return pn.lineNum == lineNum && pn.prefix == prefix
                   && pn.areaCode == areaCode;
       }
       ... // Remainder omitted
   
   }
   

function splice()
{
    var ret = new Object();

    for(i = 1; i < arguments.length; i++)
        ret[arguments[i]] = arguments[0][arguments[i]];

    return ret;
}

var answer = splice(elmo, "color", "height");

You can also use astyle. I found it quite useful and it has several options too:

Tab and Bracket Options:
   If  no  indentation  option is set, the default option of 4 spaces will be used. Equivalent to -s4 --indent=spaces=4.  If no brackets option is set, the
   brackets will not be changed.

   --indent=spaces, --indent=spaces=#, -s, -s#
          Indent using # spaces per indent. Between 1 to 20.  Not specifying # will result in a default of 4 spaces per indent.

   --indent=tab, --indent=tab=#, -t, -t#
          Indent using tab characters, assuming that each tab is # spaces long.  Between 1 and 20. Not specifying # will result in a default assumption  of
          4 spaces per tab.`

First solution

To make sure you get the right version with Environment.OSVersion you should add an app.manifest using Visual Studio and uncomment following supportedOS tags:

  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
    <application>
      <!-- A list of the Windows versions that this application has been tested on
           and is designed to work with. Uncomment the appropriate elements
           and Windows will automatically select the most compatible environment. -->

      <!-- Windows Vista -->
      <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}" />

      <!-- Windows 7 -->
      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}" />

      <!-- Windows 8 -->
      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}" />

      <!-- Windows 8.1 -->
      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}" />

      <!-- Windows 10 -->
      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />

    </application>
  </compatibility>

Then in your code you can use Environment.OSVersion like this:

var version = System.Environment.OSVersion;
Console.WriteLine(version);

Example

For instance in my machine (Windows 10.0 Build 18362.476) result would be like this which is incorrect:

Microsoft Windows NT 6.2.9200.0

By adding app.manifest and uncomment those tags I will get the right version number:

Microsoft Windows NT 10.0.18362.0

Alternative solution

If you don't like adding app.manifest to your project, you can use OSDescription which is available since .NET Framework 4.7.1 and .NET Core 1.0.

string description = RuntimeInformation.OSDescription;

Note: Don't forget to add following using statement at top of your file.

using System.Runtime.InteropServices;

You can read more about it and supported platforms here.

One issue with REPLACE will be where city names contain the district name. You can use something like.

SELECT SUBSTRING(O.Ort, LEN(C.CityName) + 2, 8000)
FROM   dbo.tblOrtsteileGeo O
       JOIN dbo.Cities C
         ON C.foo = O.foo
WHERE  O.GKZ = '06440004' 

Git

This answer includes GitHub as many folks have asked about that too.

Local repositories

Git (locally) has a directory (.git) which you commit your files to and this is your 'local repository'. This is different from systems like SVN where you add and commit to the remote repository immediately.

Git stores each version of a file that changes by saving the entire file. It is also different from SVN in this respect as you could go to any individual version without 'recreating' it through delta changes.

Git doesn't 'lock' files at all and thus avoids the 'exclusive lock' functionality for an edit (older systems like pvcs come to mind), so all files can always be edited, even when off-line. It actually does an amazing job of merging file changes (within the same file!) together during pulls or fetches/pushes to a remote repository such as GitHub. The only time you need to do manual changes (actually editing a file) is if two changes involve the same line(s) of code.

Branches

Branches allow you to preserve the main code (the 'master' branch), make a copy (a new branch) and then work within that new branch. If the work takes a while or master gets a lot of updates since the branch was made then merging or rebasing (often preferred for better history and easier to resolve conflicts) against the master branch should be done. When you've finished, you merge the changes made in the branch back in to the master repository. Many organizations use branches for each piece of work whether it is a feature, bug or chore item. Other organizations only use branches for major changes such as version upgrades.

Fork: With a branch you control and manage the branch, whereas with a fork someone else controls accepting the code back in.

Broadly speaking, there are two main approaches to doing branches. The first is to keep most changes on the master branch, only using branches for larger and longer-running things like version changes where you want to have two branches available for different needs. The second is whereby you basically make a branch for every feature request, bug fix or chore and then manually decide when to actually merge those branches into the main master branch. Though this sounds tedious, this is a common approach and is the one that I currently use and recommend because this keeps the master branch cleaner and it's the master that we promote to production, so we only want completed, tested code, via the rebasing and merging of branches.

The standard way to bring a branch 'in' to master is to do a merge. Branches can also be "rebased" to 'clean up' history. It doesn't affect the current state and is done to give a 'cleaner' history.

Basically, the idea is that you branched from a certain point (usually from master). Since you branched, 'master' itself has since moved forward from that branching point. It will be 'cleaner' (easier to resolve issues and the history will be easier to understand) if all the changes you have done in a branch are played against the current state of master with all of its latest changes. So, the process is: save the changes; get the 'new' master, and then reapply (this is the rebase part) the changes again against that. Be aware that rebase, just like merge, can result in conflicts that you have to manually resolve (i.e. edit and fix).

One guideline to note:
Only rebase if the branch is local and you haven't pushed it to remote yet!
This is mainly because rebasing can alter the history that other people see which may include their own commits.

Tracking branches

These are the branches that are named origin/branch_name (as opposed to just branch_name). When you are pushing and pulling the code to/from remote repositories this is actually the mechanism through which that happens. For example, when you git push a branch called building_groups, your branch goes first to origin/building_groups and then that goes to the remote repository. Similarly, if you do a git fetch building_groups, the file that is retrieved is placed in your origin/building_groups branch. You can then choose to merge this branch into your local copy. Our practice is to always do a git fetch and a manual merge rather than just a git pull (which does both of the above in one step).

Fetching new branches.

Getting new branches: At the initial point of a clone you will have all the branches. However, if other developers add branches and push them to the remote there needs to be a way to 'know' about those branches and their names in order to be able to pull them down locally. This is done via a git fetch which will get all new and changed branches into the locally repository using the tracking branches (e.g., origin/). Once fetched, one can git branch --remote to list the tracking branches and git checkout [branch] to actually switch to any given one.

Merging

Merging is the process of combining code changes from different branches, or from different versions of the same branch (for example when a local branch and remote are out of sync). If one has developed work in a branch and the work is complete, ready and tested, then it can be merged into the master branch. This is done by git checkout master to switch to the master branch, then git merge your_branch. The merge will bring all the different files and even different changes to the same files together. This means that it will actually change the code inside files to merge all the changes.

When doing the checkout of master it's also recommended to do a git pull origin master to get the very latest version of the remote master merged into your local master. If the remote master changed, i.e., moved forward, you will see information that reflects that during that git pull. If that is the case (master changed) you are advised to git checkout your_branch and then rebase it to master so that your changes actually get 'replayed' on top of the 'new' master. Then you would continue with getting master up-to-date as shown in the next paragraph.

If there are no conflicts, then master will have the new changes added in. If there are conflicts, this means that the same files have changes around similar lines of code that it cannot automatically merge. In this case git merge new_branch will report that there's conflict(s) to resolve. You 'resolve' them by editing the files (which will have both changes in them), selecting the changes you want, literally deleting the lines of the changes you don't want and then saving the file. The changes are marked with separators such as ======== and <<<<<<<<.

Once you have resolved any conflicts you will once again git add and git commit those changes to continue the merge (you'll get feedback from git during this process to guide you).

When the process doesn't work well you will find that git merge --abort is very handy to reset things.

Interactive rebasing and squashing / reordering / removing commits

If you have done work in a lot of small steps, e.g., you commit code as 'work-in-progress' every day, you may want to 'squash' those many small commits into a few larger commits. This can be particularly useful when you want to do code reviews with colleagues. You don't want to replay all the 'steps' you took (via commits), you want to just say here is the end effect (diff) of all of my changes for this work in one commit.

The key factor to evaluate when considering whether to do this is whether the multiple commits are against the same file or files more than once (better to squash commits in that case). This is done with the interactive rebasing tool. This tool lets you squash commits, delete commits, reword messages, etc. For example, git rebase -i HEAD~10 (note: that's a ~, not a -) brings up the following:

Be careful though and use this tool 'gingerly'. Do one squash/delete/reorder at a time, exit and save that commit, then reenter the tool. If commits are not contiguous you can reorder them (and then squash as needed). You can actually delete commits here too, but you really need to be sure of what you are doing when you do that!

Forks

There are two main approaches to collaboration in Git repositories. The first, detailed above, is directly via branches that people pull and push from/to. These collaborators have their SSH keys registered with the remote repository. This will let them push directly to that repository. The downside is that you have to maintain the list of users. The other approach - forking - allows anybody to 'fork' the repository, basically making a local copy in their own Git repository account. They can then make changes and when finished send a 'pull request' (really it's more of a 'push' from them and a 'pull' request for the actual repository maintainer) to get the code accepted.

This second method, using forks, does not require someone to maintain a list of users for the repository.

GitHub

GitHub (a remote repository) is a remote source that you normally push and pull those committed changes to if you have (or are added to) such a repository, so local and remote are actually quite distinct. Another way to think of a remote repository is that it is a .git directory structure that lives on a remote server.

When you 'fork' - in the GitHub web browser GUI you can click on this button - you create a copy ('clone') of the code in your GitHub account. It can be a little subtle first time you do it, so keep making sure you look at whose repository a code base is listed under - either the original owner or 'forked from' and you, e.g., like this:

Once you have the local copy, you can make changes as you wish (by pulling and pushing them to a local machine). When you are done then you submit a 'pull request' to the original repository owner/admin (sounds fancy but actually you just click on this: ) and they 'pull' it in.

More common for a team working on code together is to 'clone' the repository (click on the 'copy' icon on the repository's main screen). Then, locally type git clone and paste. This will set you up locally and you can also push and pull to the (shared) GitHub location.

Clones

As indicated in the section on GitHub, a clone is a copy of a repository. When you have a remote repository you issue the git clone command against its URL and you then end up with a local copy, or clone, of the repository. This clone has everything, the files, the master branch, the other branches, all the existing commits, the whole shebang. It is this clone that you do your adds and commits against and then the remote repository itself is what you push those commits to. It's this local/remote concept that makes Git (and systems similar to it such as Mercurial) a DVCS (Distributed Version Control System) as opposed to the more traditional CVSs (Code Versioning Systems) such as SVN, PVCS, CVS, etc. where you commit directly to the remote repository.

Visualization

Visualization of the core concepts can be seen at
http://marklodato.github.com/visual-git-guide/index-en.html and
http://ndpsoftware.com/git-cheatsheet.html#loc=index

If you want a visual display of how the changes are working, you can't beat the visual tool gitg (gitx for macOS) with a GUI that I call 'the subway map' (esp. London Underground), great for showing who did what, how things changes, diverged and merged, etc.

You can also use it to add, commit and manage your changes!

Although gitg/gitx is fairly minimal, the number of GUI tools continues to expand. Many Mac users use brotherbard's fork of gitx and for Linux, a great option is smart-git with an intuitive yet powerful interface:

Note that even with a GUI tool, you will probably do a lot of commands at the command line.

For this, I have the following aliases in my ~/.bash_aliases file (which is called from my ~/.bashrc file for each terminal session):

# git
alias g='git status'
alias gcob='git checkout -b '
alias gcom='git checkout master'
alias gd='git diff'
alias gf='git fetch'
alias gfrm='git fetch; git reset --hard origin/master'
alias gg='git grep '
alias gits='alias | grep "^alias g.*git.*$"'
alias gl='git log'
alias gl1='git log --oneline'
alias glf='git log --name-status'
alias glp='git log -p'
alias gpull='git pull '
alias gpush='git push '

AND I have the following "git aliases" in my ~/.gitconfig file - why have these ?
So that branch completion (with the TAB key) works !

So these are:

[alias]
  co = checkout
  cob = checkout -b

Example usage: git co [branch] <- tab completion for branches will work.

GUI Learning Tool

You may find https://learngitbranching.js.org/ useful in learning some of the base concepts. Screen shot:
Video: https://youtu.be/23JqqcLPss0

Finally, 7 key lifesavers!

1. You make changes, add and commit them (but don't push) and then oh! you realize you are in master!

   git reset [filename(s)]
   git checkout -b [name_for_a_new_branch]
   git add [file(s)]
   git commit -m "A useful message"
   
   Voila!  You've moved that 'master' commit to its own branch !
   

2. You mess up some files while working in a local branch and simply want to go back to what you had the last time you did a git pull:

   git reset --hard origin/master  # You will need to be comfortable doing this!
   

3. You start making changes locally, you edit half a dozen files and then, oh crap, you're still in the master (or another) branch:

   git checkout -b new_branch_name  # just create a new branch
   git add .                      # add the changes files
   git commit -m"your message"    # and commit them
   

4. You mess up one particular file in your current branch and want to basically 'reset' that file (lose changes) to how it was the the last time you pulled it from the remote repository:

   git checkout your/directories/filename
   

   This actually resets the file (like many Git commands it is not well named for what it is doing here).

5. You make some changes locally, you want to make sure you don't lose them while you do a git reset or rebase: I often make a manual copy of the entire project (cp -r ../my_project ~/) when I am not sure if I might mess up in Git or lose important changes.

6. You are rebasing but things gets messed up:

   git rebase --abort # To abandon interactive rebase and merge issues
   

7. Add your Git branch to your PS1 prompt (see https://unix.stackexchange.com/a/127800/10043), e.g.

   

   The branch is selenium_rspec_conversion.

More details and solutions here:

I don't understand why we are confusing things up here. So I'll write down a clear explanation, and what you have to notice.

All the commands will be written using dotnet.

This solution is provided for .net Core 3.1, but should be compatible with all other generations as well

Removing migrations:

• Removing a migration deletes the file from your project (which should be clear for everyone)
• Removing a migration can only be done, if the migration is not applied to the database yet
• To remove last created migration: cd to_your_project then dotnet ef migrations remove

Note: Removing a migration works only, if you didn't execute yet dotnet ef database update or called in your c# code Database.Migrate(), in other words, only if the migration is not applied to your database yet.

Unapplying migrations (revert migrations):

• Removes unwanted changes from the database
• Does not delete the migration file from your project, but allows you to remove it after unapplying
• To revert a migration, you can either:
  • Create a new migration dotnet ef migrations add <your_changes> and apply it, which is recommended by microsoft.
  • Or, update your database to a specified migration (which is basically unapplying or reverting the non chosen migrations) with dotnet ef database update <your_migration_name_to_jump_back_to>

Note: if the migration you want to unapply, does not contain a specific column or table, which are already in your database applied and being used, the column or table will be dropped, and your data will be lost.

After reverting the migration, you can remove your unwanted migration

Hopefully this helps someone!

Are you attempting to import an overridden class like I was?

If so, your overridden class is in the wrong package, or simply non-existent.

Creating, or moving the class into the correct location (src/[package.package].[class]) could solve your problem.

yes, you can swap these 2 queries

select * from table limit 5, 5

select * from table limit 0, 5

You've created a new repository and added some files to the index, but you haven't created your first commit yet. After you've done:

 git add a_text_file.txt 

... do:

 git commit -m "Initial commit."

... and those errors should go away.

Using jQuery it's quite trivial. v2.0 uses the table class on all tables.

$('.table > tbody > tr').click(function() {
    // row was clicked
});

This will draw a line that passes through the points (-1, 1) and (12, 4), and another one that passes through the points (1, 3) et (10, 2)

x1 are the x coordinates of the points for the first line, y1 are the y coordinates for the same -- the elements in x1 and y1 must be in sequence.

x2 and y2 are the same for the other line.

import matplotlib.pyplot as plt
x1, y1 = [-1, 12], [1, 4]
x2, y2 = [1, 10], [3, 2]
plt.plot(x1, y1, x2, y2, marker = 'o')
plt.show()

I suggest you spend some time reading / studying the basic tutorials found on the very rich matplotlib website to familiarize yourself with the library.

What if I don't want line segments?

There are no direct ways to have lines extend to infinity... matplotlib will either resize/rescale the plot so that the furthest point will be on the boundary and the other inside, drawing line segments in effect; or you must choose points outside of the boundary of the surface you want to set visible, and set limits for the x and y axis.

As follows:

import matplotlib.pyplot as plt
x1, y1 = [-1, 12], [1, 10]
x2, y2 = [-1, 10], [3, -1]
plt.xlim(0, 8), plt.ylim(-2, 8)
plt.plot(x1, y1, x2, y2, marker = 'o')
plt.show()

Might be cleaner to use PrintWriter and its method println.
Just make sure you close the writer when you're done

UPDATED: One-liner solution, for random 20 characters (alphanumeric lowercase):

Array.from(Array(20), () => Math.floor(Math.random() * 36).toString(36)).join('');

Or shorter with lodash:

_.times(20, () => _.random(35).toString(36)).join('');

If you've tried modifying etc/hosts and adding java.rmi.server.hostname property as well but still registry is being bind to 127.0.0.1

the issue for me was resolved after explicitly setting System property through code though the same property wasn't picked from jvm args

To remove a timezone (tzinfo) from a datetime object:

# dt_tz is a datetime.datetime object
dt = dt_tz.replace(tzinfo=None)

If you are using a library like arrow, then you can remove timezone by simply converting an arrow object to to a datetime object, then doing the same thing as the example above.

# <Arrow [2014-10-09T10:56:09.347444-07:00]>
arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')

# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444, tzinfo=tzoffset(None, -25200))
tmpDatetime = arrowObj.datetime

# datetime.datetime(2014, 10, 9, 10, 56, 9, 347444)
tmpDatetime = tmpDatetime.replace(tzinfo=None)

Why would you do this? One example is that mysql does not support timezones with its DATETIME type. So using ORM's like sqlalchemy will simply remove the timezone when you give it a datetime.datetime object to insert into the database. The solution is to convert your datetime.datetime object to UTC (so everything in your database is UTC since it can't specify timezone) then either insert it into the database (where the timezone is removed anyway) or remove it yourself. Also note that you cannot compare datetime.datetime objects where one is timezone aware and another is timezone naive.

##############################################################################
# MySQL example! where MySQL doesn't support timezones with its DATETIME type!
##############################################################################

arrowObj = arrow.get('2014-10-09T10:56:09.347444-07:00')

arrowDt = arrowObj.to("utc").datetime

# inserts datetime.datetime(2014, 10, 9, 17, 56, 9, 347444, tzinfo=tzutc())
insertIntoMysqlDatabase(arrowDt)

# returns datetime.datetime(2014, 10, 9, 17, 56, 9, 347444)
dbDatetimeNoTz = getFromMysqlDatabase()

# cannot compare timzeone aware and timezone naive
dbDatetimeNoTz == arrowDt # False, or TypeError on python versions before 3.3

# compare datetimes that are both aware or both naive work however
dbDatetimeNoTz == arrowDt.replace(tzinfo=None) # True

A quick example of code for Application.Dispatcher.UnhandledException:

public App() {
    this.Dispatcher.UnhandledException += OnDispatcherUnhandledException;
}

void OnDispatcherUnhandledException(object sender, System.Windows.Threading.DispatcherUnhandledExceptionEventArgs e) {
    string errorMessage = string.Format("An unhandled exception occurred: {0}", e.Exception.Message);
    MessageBox.Show(errorMessage, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
    // OR whatever you want like logging etc. MessageBox it's just example
    // for quick debugging etc.
    e.Handled = true;
}

I added this code in App.xaml.cs

' Create The Object
Set FSO = CreateObject("Scripting.FileSystemObject")

' How To Write To A File
Set File = FSO.CreateTextFile("C:\foo\bar.txt",True)
File.Write "Example String"
File.Close

' How To Read From A File
Set File = FSO.OpenTextFile("C:\foo\bar.txt")
Do Until File.AtEndOfStream
    Line = File.ReadLine
    WScript.Echo(Line)
Loop
File.Close

' Another Method For Reading From A File
Set File = FSO.OpenTextFile("C:\foo\bar.txt")
Set Text = File.ReadAll
WScript.Echo(Text)
File.Close

Another possible problem is that the csv file contains a byte order mark "FEFF". The byte order mark is intended to detect whether the file has been moved from a system using big endian or little endian byte ordering to a system of the opposite endianness. https://en.wikipedia.org/wiki/Byte_order_mark

Removing the "FEFF" byte order mark using a hex editor should allow Excel to read the file.

This is currently not possible with CSS alone as @BoltClock wrote in the accepted answer, but you can work around that by using JavaScript.

I created a container query (aka element query) prolyfill to solve this kind of issue. It works a bit different than other scripts, so you don’t have to edit the HTML code of your elements. All you have to do is include the script and use it in your CSS like so:

.element:container(width > 99px) {
    /* If its container is at least 100px wide */
}

https://github.com/ausi/cq-prolyfill

So I was actually needing an answer to this question today (7/25/2013), so I wrote this earlier. I've tested it with some toy examples, hopefully you get some mileage out of it

def categorize_dict(x, y=0):
    # x Requires string or numerical input
    # y is a boolean that specifices whether to return category names along with the dict.
    # default is no
    cats = list(set(x))
    n = len(cats)
    m = len(x)
    outs = {}
    for i in cats:
        outs[i] = [0]*m
    for i in range(len(x)):
        outs[x[i]][i] = 1
    if y:
        return outs,cats
    return outs

select * into newtable from oldtable

If you have some panels or groupboxes reset fields should be recursive.

public class Utilities
{
    public static void ResetAllControls(Control form)
    {
        foreach (Control control in form.Controls)
        {
            RecursiveResetForm(control);
        }
    }

    private void RecursiveResetForm(Control control)
    {            
        if (control.HasChildren)
        {
            foreach (Control subControl in control.Controls)
            {
                RecursiveResetForm(subControl);
            }
        }
        switch (control.GetType().Name)
        {
            case "TextBox":
                TextBox textBox = (TextBox)control;
                textBox.Text = null;
                break;

            case "ComboBox":
                ComboBox comboBox = (ComboBox)control;
                if (comboBox.Items.Count > 0)
                    comboBox.SelectedIndex = 0;
                break;

            case "CheckBox":
                CheckBox checkBox = (CheckBox)control;
                checkBox.Checked = false;
                break;

            case "ListBox":
                ListBox listBox = (ListBox)control;
                listBox.ClearSelected();
                break;

            case "NumericUpDown":
                NumericUpDown numericUpDown = (NumericUpDown)control;
                numericUpDown.Value = 0;
                break;
        }
    }        
}

I was looking for this exact same thing and found that you can do:

strace -ewrite -p $PID

It's not exactly what you needed, but it's quite close.

I tried the redirecting output, but that didn't work for me. Maybe because the process was writing to a socket, I don't know.

This is one ugly way to do this. I would just use a local variable.

EDIT: If size() > 0 as well.

if (orderBean.getFiles().size() + Integer.MIN_VALUE-1 < Integer.MIN_VALUE + 5-1)

Use paste.

 df$x <- paste(df$n,df$s)
 df
#   n  s     b    x
# 1 2 aa  TRUE 2 aa
# 2 3 bb FALSE 3 bb
# 3 5 cc  TRUE 5 cc

top object makes more sense inside frames. Inside a frame, window refers to current frame's window while top refers to the outermost window that contains the frame(s). So:

window.location.href = 'somepage.html'; means loading somepage.html inside the frame.

top.location.href = 'somepage.html'; means loading somepage.html in the main browser window.

Two other interesting objects are self and parent.

upstream sent too big header while reading response header from upstream is nginx's generic way of saying "I don't like what I'm seeing"

1. Your upstream server thread crashed
2. The upstream server sent an invalid header back
3. The Notice/Warnings sent back from STDERR overflowed their buffer and both it and STDOUT were closed

3: Look at the error logs above the message, is it streaming with logged lines preceding the message? PHP message: PHP Notice: Undefined index: Example snippet from a loop my log file:

2015/11/23 10:30:02 [error] 32451#0: *580927 FastCGI sent in stderr: "PHP message: PHP Notice:  Undefined index: Firstname in /srv/www/classes/data_convert.php on line 1090
PHP message: PHP Notice:  Undefined index: Lastname in /srv/www/classes/data_convert.php on line 1090
... // 20 lines of same
PHP message: PHP Notice:  Undefined index: Firstname in /srv/www/classes/data_convert.php on line 1090
PHP message: PHP Notice:  Undefined index: Lastname in /srv/www/classes/data_convert.php on line 1090
PHP message: PHP Notice:  Undef
2015/11/23 10:30:02 [error] 32451#0: *580927 FastCGI sent in stderr: "ta_convert.php on line 1090
PHP message: PHP Notice:  Undefined index: Firstname

you can see in the 3rd line from the bottom that the buffer limit was hit, broke, and the next thread wrote in over it. Nginx then closed the connection and returned 502 to the client.

2: log all the headers sent per request, review them and make sure they conform to standards (nginx does not permit anything older than 24 hours to delete/expire a cookie, sending invalid content length because error messages were buffered before the content counted...). getallheaders function call can usually help out in abstracted code situations php get all headers

examples include:

<?php
//expire cookie
setcookie ( 'bookmark', '', strtotime('2012-01-01 00:00:00') );
// nginx will refuse this header response, too far past to accept
....
?>

and this:

<?php
header('Content-type: image/jpg');
?>

<?php   //a space was injected into the output above this line
header('Content-length: ' . filesize('image.jpg') );
echo file_get_contents('image.jpg');
// error! the response is now 1-byte longer than header!!
?>

1: verify, or make a script log, to ensure your thread is reaching the correct end point and not exiting before completion.

You can apply the .toUpperCase() directly on String variables or as an attribute to text fields. Ex: -

String str;
TextView txt;

str.toUpperCase();// will change it to all upper case OR
txt.append(str.toUpperCase());
txt.setText(str.toUpperCase());

As I discovered from this similar post (ignorecase in AWK), on old versions of awk (such as on vanilla Mac OS X), you may need to use 'tolower($0) ~ /pattern/'.

IGNORECASE or (?i) or /pattern/i will either generate an error or return true for every line.

You can also do

git log --name-only

and you can browse through various commits, commit messages and the changed files.

Type q to get your prompt back.

If your npm version is lower than version 5 then install the higher version for getting the automatic generation of package-lock.json.

Example: Upgrade your current npm to version 6.14.0

npm i -g [email protected]

You could view the latest npm version list by

npm view npm versions

alter table your_table
alter column LoginDate datetime;

SQLFiddle demo

To add to the confusion around Q-Q plots and probability plots in the Python and R worlds, this is what the SciPy manual says:

"probplot generates a probability plot, which should not be confused with a Q-Q or a P-P plot. Statsmodels has more extensive functionality of this type, see statsmodels.api.ProbPlot."

If you try out scipy.stats.probplot, you'll see that indeed it compares a dataset to a theoretical distribution. Q-Q plots, OTOH, compare two datasets (samples).

R has functions qqnorm, qqplot and qqline. From the R help (Version 3.6.3):

qqnorm is a generic function the default method of which produces a normal QQ plot of the values in y. qqline adds a line to a “theoretical”, by default normal, quantile-quantile plot which passes through the probs quantiles, by default the first and third quartiles.

qqplot produces a QQ plot of two datasets.

In short, R's qqnorm offers the same functionality that scipy.stats.probplot provides with the default setting dist=norm. But the fact that they called it qqnorm and that it's supposed to "produce a normal QQ plot" may easily confuse users.

Finally, a word of warning. These plots don't replace proper statistical testing and should be used for illustrative purposes only.

No you can't.

You can change the size to make it larger... similar to Dreas idea, but it is the size you need to change.

<select id="countries" size="6">
  <option value="1">Country 1</option>
  <option value="2">Country 2</option>
  <option value="3">Country 3</option>
  <option value="4">Country 4</option>
  <option value="5">Country 5</option>
  <option value="6">Country 6</option>
</select>

When your script is running, it blocks the page from doing anything. You can work around this with one of two ways:

• Use var foo = prompt("Give me input");, which will give you the string that the user enters into a popup box (or null if they cancel it)
• Split your code into two function - run one function to set up the user interface, then provide the second function as a callback that gets run when the user clicks the button.

If it supports standard regex...

find:
^.*#RedirectMatch Permanent.*$

replace:

Replace with nothing.

mimetype headers are recognised by the browser for the purpose of a (fast) possible identifying a handler to use the downloaded file as target, for example, PDF would be downloaded and your Adobe Reader program would be executed with the path of the PDF file as an argument,

If your needs are to write a browser extension to handle your downloaded file, through your operation-system, or you simply want to make you project a more 'professional looking' go ahead and select a unique mimetype for you to use, it would make no difference since the operation-system would have no handle to open it with (some browsers has few bundled-plugins, for example new Google Chrome versions has a built-in PDF-reader),

if you want to make sure the file would be downloaded have a look at this answer: https://stackoverflow.com/a/34758866/257319

if you want to make your file type especially organised, it might be worth adding a few letters in the first few bytes of the file, for example, every JPG has this at it's file start:

if you can afford a jump of 4 or 8 bytes it could be very helpful for you in the rest of the way

:)

Most likely, the classes for the DataSet, DataTable and DataRow are already defined in the solution. If that's the case you won't need the DataSetExtensions reference.

Ex. DataSet class name-> CustomSet, DataRow class name-> CustomTableRow (with defined columns: RowNo, ...)

var result = from myRow in myDataTable.Rows.OfType<CustomSet.CustomTableRow>()
             where myRow.RowNo == 1
             select myRow;

Or (as I prefer)

var result = myDataTable.Rows.OfType<CustomSet.CustomTableRow>().Where(myRow => myRow.RowNo);

If I understand you correctly you want to close the application even if the user did not click on the close button. You will need to register WindowEvents maybe with addWindowListener() or enableEvents() whichever suits your needs better.

You can then invoke the event with a call to processWindowEvent(). Here is a sample code that will create a JFrame, wait 5 seconds and close the JFrame without user interaction.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ClosingFrame extends JFrame implements WindowListener{

public ClosingFrame(){
    super("A Frame");
    setSize(400, 400);
            //in case the user closes the window
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            setVisible(true);
            //enables Window Events on this Component
            this.addWindowListener(this);

            //start a timer
    Thread t = new Timer();
            t.start();
    }

public void windowOpened(WindowEvent e){}
public void windowClosing(WindowEvent e){}

    //the event that we are interested in
public void windowClosed(WindowEvent e){
    System.exit(0);
}

public void windowIconified(WindowEvent e){}
public void windowDeiconified(WindowEvent e){}
public void windowActivated(WindowEvent e){}
public void windowDeactivated(WindowEvent e){}

    //a simple timer 
    class Timer extends Thread{
           int time = 10;
           public void run(){
     while(time-- > 0){
       System.out.println("Still Waiting:" + time);
               try{
                 sleep(500);                     
               }catch(InterruptedException e){}
             }
             System.out.println("About to close");
    //close the frame
            ClosingFrame.this.processWindowEvent(
                 new WindowEvent(
                       ClosingFrame.this, WindowEvent.WINDOW_CLOSED));
           }
    }

    //instantiate the Frame
public static void main(String args[]){
          new ClosingFrame();
    }

}

As you can see, the processWindowEvent() method causes the WindowClosed event to be fired where you have an oportunity to do some clean up code if you require before closing the application.

I used decorator given by Armin Ronacher with little modifications (due to different headers that are requested by the client).And that worked for me. (where I use angular as the requester requesting application/json type).

The code is slightly modified at below places,

from flask import jsonify

@app.route('/my_service', methods=['POST', 'GET','OPTIONS'])
@crossdomain(origin='*',headers=['access-control-allow-origin','Content-Type'])
def my_service():
    return jsonify(foo='cross domain ftw')

jsonify will send a application/json type, else it will be text/html. headers are added as the client in my case request for those headers

 const httpOptions = {
      headers: new HttpHeaders({
        'Content-Type': 'application/json',
        'Access-Control-Allow-Origin':'*'
      })
    };
    return this.http.post<any>(url, item,httpOptions)

As offer_date is an number, and is of lower accuracy than your real dates, this may work...
- Convert your real date to a string of format YYYYMM
- Conver that value to an INT
- Compare the result you your offer_date

SELECT
  *
FROM
  offers
WHERE
    offer_date = (SELECT CAST(to_char(create_date, 'YYYYMM') AS INT) FROM customers where id = '12345678')
AND offer_rate > 0 

Also, by doing all the manipulation on the create_date you only do the processing on one value.

Additionally, had you manipulated the offer_date you would not be able to utilise any index on that field, and so force SCANs instead of SEEKs.

New in C# 8.0 you can use the so-called "hat" (^) operator! This is useful for when you want to do something in one line!

var mystr = "Hello World!";
var lastword = mystr.Split(" ")[^1];
Console.WriteLine(lastword);
// World!

instead of the old way:

var mystr = "Hello World";
var split = mystr.Split(" ");
var lastword = split[split.Length - 1];
Console.WriteLine(lastword);
// World!

It doesn't save much space, but it looks much clearer (maybe I only think this because I came from python?). This is also much better than calling a method like .Last() or .Reverse() Read more at MSDN

Edit: You can add this functionality to your class like so:

public class MyClass
{
  public object this[Index indx]
  {
    get
    {
      // Do indexing here, this is just an example of the .IsFromEnd property
      if (indx.IsFromEnd)
      {
        Console.WriteLine("Negative Index!")
      }
      else
      {
        Console.WriteLine("Positive Index!")
      }
    }
  }
}

The Index.IsFromEnd will tell you if someone is using the 'hat' (^) operator

I will personally recommend using

where(< columnname> => < columnvalue>)

In my case my request object inherited from base object. Without knowingly I added a property with int? in my request object and my base object also has same property ( same name ) with int datatype. I noticed this and deleted the property which I added in request object and after that it worked fine.

I come across a situation where i need to insert the data in the database & simultaneously require the primary id using entity framework. Solution :

long id;
IGenericQueryRepository<myentityclass, Entityname> InfoBase = null;
try
 {
    InfoBase = new GenericQueryRepository<myentityclass, Entityname>();
    InfoBase.Add(generalinfo);
    InfoBase.Context.SaveChanges();
    id = entityclassobj.ID;
    return id;
 }

a)

from selenium.common.exceptions import NoSuchElementException        
def check_exists_by_xpath(xpath):
    try:
        webdriver.find_element_by_xpath(xpath)
    except NoSuchElementException:
        return False
    return True

b) use xpath - the most reliable. Moreover you can take the xpath as a standard throughout all your scripts and create functions as above mentions for universal use.

UPDATE: I wrote the initial answer over 4 years ago and at the time I thought xpath would be the best option. Now I recommend to use css selectors. I still recommend not to mix/use "by id", "by name" and etc and use one single approach instead.

I would say that one should omit the __init__.py only if one wants to have the implicit namespace package. If you don't know what it means, you probably don't want it and therefore you should continue to use the __init__.py even in Python 3.

To use command support you should follow this steps:

1. Define Path in Environment Variables:

   • open 'System Properties';
   • on the tab 'Advanced' click on the 'Environment Variables' button
   • in the section 'System variables' select 'Path' option and click 'edit'

   • append variable value with the path to TortoiseProc.exe file, for example:

     C:\Program Files\TortoiseSVN\bin

2. Since you have registered TortoiseProc, you can use it in according to TortoiseSVN documentation.

   Examples:

   TortoiseProc.exe /command:commit /path:"c:\svn_wc\file1.txt*c:\svn_wc\file2.txt" /logmsg:"test log message" /closeonend:0

   TortoiseProc.exe /command:update /path:"c:\svn_wc\" /closeonend:0

   TortoiseProc.exe /command:log /path:"c:\svn_wc\file1.txt" /startrev:50 /endrev:60 /closeonend:0

P.S. To use friendly name like 'svn' instead of 'TortoiseProc', place 'svn.bat' file in the directory of 'TortoiseProc.exe'. There is an example of svn.bat:

TortoiseProc.exe %1 %2 %3

You need to merge the remote branch into your current branch by running git pull.

If your local branch is already up-to-date, you may also need to run git pull --rebase.

A quick google search also turned up this same question asked by another SO user: Cannot push to GitHub - keeps saying need merge. More details there.

You can use PowerMockito to set return values for private fields and private methods that are called/used in the private method you want to test:

Eg. Setting return value for private method:

MyClient classUnderTest = PowerMockito.spy(new MyClient());

//Set expected return value
PowerMockito.doReturn(20).when(classUnderTest, "myPrivateMethod", anyString(), anyInt());
//This is very important otherwise it will not work
classUnderTest.myPrivateMethod(); 

//Setting private field value as someValue:
Whitebox.setInternalState(classUnderTest, "privateField", someValue);

Then finally you can validate your private method under test is returning correct value based on set values above by:

String msg = Whitebox.invokeMethod(obj, "privateMethodToBeTested", "param1");
Assert.assertEquals(privateMsg, msg);

Or

If classUnderTest private method does not return value but it set another private field then you can get that private field value to see if it was set correctly:

//To get value of private field
MyClass obj = Whitebox.getInternalState(classUnderTest, "foo");
assertThat(obj, is(notNull(MyClass.class))); // or test value

Simple convert ? to ! fixed my issue:

usernameLabel.text = "\(userInfo?.userName)"

To

usernameLabel.text = "\(userInfo!.userName)"

How about some recursion:

private static string ReturnSize(double size, string sizeLabel)
{
  if (size > 1024)
  {
    if (sizeLabel.Length == 0)
      return ReturnSize(size / 1024, "KB");
    else if (sizeLabel == "KB")
      return ReturnSize(size / 1024, "MB");
    else if (sizeLabel == "MB")
      return ReturnSize(size / 1024, "GB");
    else if (sizeLabel == "GB")
      return ReturnSize(size / 1024, "TB");
    else
      return ReturnSize(size / 1024, "PB");
  }
  else
  {
    if (sizeLabel.Length > 0)
      return string.Concat(size.ToString("0.00"), sizeLabel);
    else
      return string.Concat(size.ToString("0.00"), "Bytes");
  }
}

Then you call it:

return ReturnSize(size, string.Empty);

You can go here to download the Java JRE.

You can go here to download the Java JDK.

After that you need to set up your environmental variables in Windows:

1. Right-click My Computer
2. Click Properties
3. Go to Advanced System Settings
4. Click on the Advanced tab
5. Click on Environment Variables

EDIT: See screenshot for environmental variables

http://constc.blogspot.com/2008/07/undeclared-undefined-null-in-javascript.html

Depends on how specific you want the test to be. You could maybe get away with

if(page_name){ string += "&page_name=" + page_name; }

Simply activate the filter headers and run showalldata, works 100%. Something like:

Range("A1:Z1").Activate
ActiveSheet.ShowAllData

Range("R1:Y1").Activate
ActiveSheet.ShowAllData

If you have the field headers in A1:Z1 and R1:Y1 respectively.

var http = require('http');

  var options = {     
      host: 'localhost',
      port: 80,
      path: '/broadcast'
    };

  var requestLoop = setInterval(function(){

      http.get (options, function (resp) {
        resp.on('data', function (d) {
          console.log ('data!', d.toString());
        });
        resp.on('end', function (d) {
           console.log ('Finished !');
        });
      }).on('error', function (e) {
          console.log ('error:', e);
      });
  }, 10000);

var dns = require('dns'), cache = {};
dns._lookup = dns.lookup;
dns.lookup = function(domain, family, done) {
    if (!done) {
        done = family;
        family = null;
    }

    var key = domain+family;
    if (key in cache) {
        var ip = cache[key],
            ipv = ip.indexOf('.') !== -1 ? 4 : 6;

        return process.nextTick(function() {
            done(null, ip, ipv);
        });
    }

    dns._lookup(domain, family, function(err, ip, ipv) {
        if (err) return done(err);
        cache[key] = ip;
        done(null, ip, ipv);
    });
};

// Works fine (100%)

One way to do it is to set the index to be auto incrementing. Then your SQL statement simply specifies NULL and then SQL parser does the rest for you.

INSERT INTO foo VALUES (null);

$date = '2013-01-22';
$time = strtotime($date) + 86400;
echo date('Y-m-d', $time);

Where 86400 is the # of seconds in a day.

Found the answer. In the file xampp\apache\conf\extra\httpd-ssl.conf, under the comment SSL Virtual Host Context pages on port 443 meaning https is looked up under different document root.

Simply change the document root to the same one and problem is fixed.

When nothing else works when it should work, restart ng serve. It's sad to find this kind of bugs.