NSMutableArray *persons = [NSMutableArray array];
for (int i = 0; i < myPersonsCount; i++) {
   [persons addObject:[[Person alloc] init]];
}
NSArray *arrayOfPersons = [NSArray arrayWithArray:persons]; // if you want immutable array

also you can reach this without using NSMutableArray:

NSArray *persons = [NSArray array];
for (int i = 0; i < myPersonsCount; i++) {
   persons = [persons arrayByAddingObject:[[Person alloc] init]];
}

One more thing - it's valid for ARC enabled environment, if you going to use it without ARC don't forget to add autoreleased objects into array!

[persons addObject:[[[Person alloc] init] autorelease];

while not any( x in ('AND','OR','NOT') for x in list)

EDIT:

thank you for the upvotes , but etarion's solution is better since it tests if the words AND, OR, NOT are in the list, that is to say 3 tests.

Mine does as many tests as there are words in list.

EDIT2:

Also there is

while not ('AND' in list,'OR' in list,'NOT' in list)==(False,False,False)

You can't have a <button> inside an <a> element. As W3's content model description for the <a> element states:

"there must be no interactive content descendant."

(a <button> is considered interactive content)

To get the effect you're looking for, you can ditch the <a> tags and add a simple event handler to each button which navigates the browser to the desired location, e.g.

<input type="button" value="stackoverflow.com" onClick="javascript:location.href = 'http://stackoverflow.com';" />

Please consider not doing this, however; there's a reason regular links work as they do:

• Users can instantly recognize links and understand that they navigate to other pages
• Search engines can identify them as links and follow them
• Screen readers can identify them as links and advise their users appropriately

You also add a completely unnecessary requirement to have JavaScript enabled just to perform a basic navigation; this is such a fundamental aspect of the web that I would consider such a dependency as unacceptable.

You can style your links, if desired, using a background image or background color, border and other techniques, so that they look like buttons, but under the covers, they should be ordinary links.

Just so you can find it next time, here is how you search for the enumerable Linq extensions. The methods are static methods of Enumerable, thus Enumerable.Any, Enumerable.Where and Enumerable.Exists.

• google.com/search?q=Enumerable.Any
• google.com/search?q=Enumerable.Where
• google.com/search?q=Enumerable.Exists

As the third returns no usable result, I found that you meant List.Exists, thus:

• google.com/search?q=List.Exists

I also recommend hookedonlinq.com as this is has very comprehensive and clear guides, as well clear explanations of the behavior of Linq methods in relation to deferness and lazyness.

Do a little homework with the php online manual's string functions. You'll want to use strlen in a comparison setting, substr to cut it if you need to, and the concatenation operator with "..." or "…"

Try setting the core.autocrlf configuration option to true. Also have a look at the core.safecrlf option.

Actually it sounds like core.safecrlf might already be set in your repository, because (emphasis mine):

If this is not the case for the current setting of core.autocrlf, git will reject the file.

If this is the case, then you might want to check that your text editor is configured to use line endings consistently. You will likely run into problems if a text file contains a mixture of LF and CRLF line endings.

Finally, I feel that the recommendation to simply "use what you're given" and use LF terminated lines on Windows will cause more problems than it solves. Git has the above options to try to handle line endings in a sensible way, so it makes sense to use them.

I think PARSENAME is the neat function to use for this example, as described in this article: http://www.sqlshack.com/parsing-and-rotating-delimited-data-in-sql-server-2012/

The PARSENAME function is logically designed to parse four-part object names. The nice thing about PARSENAME is that it’s not limited to parsing just SQL Server four-part object names – it will parse any function or string data that is delimited by dots.

The first parameter is the object to parse, and the second is the integer value of the object piece to return. The article is discussing parsing and rotating delimited data - company phone numbers, but it can be used to parse name/surname data also.

Example:

USE COMPANY;
SELECT PARSENAME('Whatever.you.want.parsed',3) AS 'ReturnValue';

The article also describes using a Common Table Expression (CTE) called ‘replaceChars’, to run PARSENAME against the delimiter-replaced values. A CTE is useful for returning a temporary view or result set.

After that, the UNPIVOT function has been used to convert some columns into rows; SUBSTRING and CHARINDEX functions have been used for cleaning up the inconsistencies in the data, and the LAG function (new for SQL Server 2012) has been used in the end, as it allows referencing of previous records.

Use a dictionary!!

You can also use dictionaries that allows you to have more control over the plots:

import matplotlib.pyplot as plt
#   plot 0     plot 1    plot 2   plot 3
x=[[1,2,3,4],[1,4,3,4],[1,2,3,4],[9,8,7,4]]
y=[[3,2,3,4],[3,6,3,4],[6,7,8,9],[3,2,2,4]]

plots = zip(x,y)
def loop_plot(plots):
    figs={}
    axs={}
    for idx,plot in enumerate(plots):
        figs[idx]=plt.figure()
        axs[idx]=figs[idx].add_subplot(111)
        axs[idx].plot(plot[0],plot[1])
return figs, axs

figs, axs = loop_plot(plots)

Now you can select the plot that you want to modify easily:

axs[0].set_title("Now I can control it!")

Of course, is up to you to decide what to do with the plots. You can either save them to disk figs[idx].savefig("plot_%s.png" %idx) or show them plt.show(). Use the argument block=False only if you want to pop up all the plots together (this could be quite messy if you have a lot of plots). You can do this inside the loop_plot function or in a separate loop using the dictionaries that the function provided.

I've reworked VonC's script to do everything automatically and not ask me for anything. You give it two commit SHA1s and it will squash everything between them into one commit named "squashed history":

#!/bin/sh
# Go back to the last commit that we want
# to form the initial commit (detach HEAD)
git checkout $2

# reset the branch pointer to the initial commit (= $1),
# but leaving the index and working tree intact.
git reset --soft $1

# amend the initial tree using the tree from $2
git commit --amend -m "squashed history"

# remember the new commit sha1
TARGET=`git rev-list HEAD --max-count=1`

# go back to the original branch (assume master for this example)
git checkout master

# Replay all the commits after $2 onto the new initial commit
git rebase --onto $TARGET $2

The usual WPF timer is the DispatcherTimer, which is not a control but used in code. It basically works the same way like the WinForms timer:

System.Windows.Threading.DispatcherTimer dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += dispatcherTimer_Tick;
dispatcherTimer.Interval = new TimeSpan(0,0,1);
dispatcherTimer.Start();


private void dispatcherTimer_Tick(object sender, EventArgs e)
{
  // code goes here
}

More on the DispatcherTimer can be found here

One more possible solution with moment.js:

var moment = require('moment');
var startDate = new Date();
var endDate = new Date();
endDate.setDate(endDate.getFullYear() + 5); // Add 5 years to second date
console.log(moment.duration(endDate - startDate).years()); // This should returns 5

If you want to look at the actual GNU implementation of those functions in C, check out the latest trunk of glibc. See the GNU C Library.

Ctrl + alt +delete to start TASK MANAGER ,choose Service ,Then you will find MySQL, click that item by right click,then choose start, your MySQL Server will start!

You may also try standard sql un-pivoting method by using a sequence of logic with the following code.. The following code has 3 steps:

1. create multiple copies for each row using cross join (also creating subject column in this case)
2. create column "marks" and fill in relevant values using case expression ( ex: if subject is science then pick value from science column)

3. remove any null combinations ( if exists, table expression can be fully avoided if there are strictly no null values in base table)

    select *
    from 
    (
       select name, subject,
       case subject
       when 'Maths' then maths
       when 'Science' then science
       when 'English' then english
       end as Marks
   from studentmarks
   Cross Join (values('Maths'),('Science'),('English')) AS Subjct(Subject)
   )as D
   where marks is not null;
   

#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
  echo "Usage: $0 DIRECTORY" >&2
  exit 1
fi

Translation: If number of arguments is not (numerically) equal to 1 or the first argument is not a directory, output usage to stderr and exit with a failure status code.

More friendly error reporting:

#!/bin/sh
if [ "$#" -ne 1 ]; then
  echo "Usage: $0 DIRECTORY" >&2
  exit 1
fi
if ! [ -e "$1" ]; then
  echo "$1 not found" >&2
  exit 1
fi
if ! [ -d "$1" ]; then
  echo "$1 not a directory" >&2
  exit 1
fi

I am not sure if something has changed, but I just tried the other answers regarding entries in "eclipse.ini" for Eclipse Galileo SR2 (Windows XP SR3) and none worked. Java is jdk1.6.0_18 and is the default Windows install. Things improved when I dropped "\javaw.exe" from the path.

Also, I can't thank enough the mention that -vm needs to be first line in the ini file. I believe that really helped me out.

Thus my eclipse.ini file starts with:

-vm
C:\Program Files\Java\jdk1.6.0_18\bin

FYI, my particular need to specify launching Eclipse with a JDK arose from my wanting to work with the m2eclipse plugin.

This should do the job. It provides the client IP address (remote host).

Note that this code is running on the server side.

from mod_python import apache

req.get_remote_host(apache.REMOTE_NOLOOKUP)

Try

$(".text").text(data);

Or to convert the data received to a string.

$("video").prop('muted', true); //mute

AND

$("video").prop('muted', false); //unmute

See all events here

(side note: use attr if in jQuery < 1.6)

ID is suitable for the elements which appears only once Like Logo sidebar container

And Class is suitable for the elements which has same UI but they can be appear more than once. Like

.feed in the #feeds Container

I upgraded VS2017 from version 15.2 to 15.8. With version 15.8 here's what happened:

Project -> Properties -> General -> Windows SDK Version -> select 10.0.15063.0 no longer worked for me! I had to change it to 10.0.17134.0 and then everything built again. After the upgrade and without making this change, I was getting the same header file errors.

I would have submitted this as a comment on one of the other answers but I don't have enough reputation yet.

Try this (not sure if it's the best way, but it works):

find . -type f | perl -ne 'print $1 if m/\.([^.\/]+)$/' | sort -u

It work as following:

• Find all files from current folder
• Prints extension of files if any
• Make a unique sorted list

I did this and it works for me. "content" is placesContent object. not the html content!

var placesContent = $('#placescontent');
$('#places').popover({
        trigger: "click",
        placement: "bottom",
        container: 'body',
        html : true,
        content : placesContent,
    });

$('#places').on('shown.bs.popover', function(){
  $('#addPlaceBtn').on('click', addPlace);
}

<div id="placescontent"><div id="addPlaceBtn">Add</div></div>

Use a tool such as wait-for-it or dockerize. These are small wrapper scripts which you can include in your application’s image. Or write your own wrapper script to perform a more application-specific commands. according to: https://docs.docker.com/compose/startup-order/

If it is always the 4th char in yourString you can try:

yourString.replace(/^(.{4})(r)/, function($1, $2) { return $2; });

wordlists is not a function, it is a list. You need the bracket subscript

print  wordlists[len(words)]

If you are using tortoise git you can right-click on a file and git a diff by: Right-clicking on the first file and through the tortoisegit submenu select "Diff later" Then on the second file you can also right-click on this, go to the tortoisegit submenu and then select "Diff with yourfilenamehere.txt"

As Dan pointed out: you need to convert them to binary and then convert/correct the encoding.

E.g., for utf8 stored as latin1 the following SQL will fix it:

UPDATE table
   SET field = CONVERT( CAST(field AS BINARY) USING utf8)
 WHERE $broken_field_condition

FWIW, I had exactly the same question, but I could not find the answer here. It's probably not portable, but at least for gitolite, I can run the following to get what I want:

$ ssh [email protected] info
hello akim, this is gitolite 2.3-1 (Debian) running on git 1.7.10.4
the gitolite config gives you the following access:
     R   W     android
     R   W     bistro
     R   W     checkpn
...

You mention the certificate is self-signed (by you)? Then you have two choices:

• add the certificate to your trust store (fetching cacert.pem from cURL website won't do anything, since it's self-signed)
• don't bother verifying the certificate: you trust yourself, don't you?

Here's a list of SSL context options in PHP: https://secure.php.net/manual/en/context.ssl.php

Set allow_self_signed if you import your certificate into your trust store, or set verify_peer to false to skip verification.

The reason why we trust a specific certificate is because we trust its issuer. Since your certificate is self-signed, no client will trust the certificate as the signer (you) is not trusted. If you created your own CA when signing the certificate, you can add the CA to your trust store. If your certificate doesn't contain any CA, then you can't expect anyone to connect to your server.

For each conflicted file you get, you can specify

git checkout --ours -- <paths>
# or
git checkout --theirs -- <paths>

From the git checkout docs

git checkout [-f|--ours|--theirs|-m|--conflict=<style>] [<tree-ish>] [--] <paths>...

--ours
--theirs
When checking out paths from the index, check out stage #2 (ours) or #3 (theirs) for unmerged paths.

The index may contain unmerged entries because of a previous failed merge. By default, if you try to check out such an entry from the index, the checkout operation will fail and nothing will be checked out. Using -f will ignore these unmerged entries. The contents from a specific side of the merge can be checked out of the index by using --ours or --theirs. With -m, changes made to the working tree file can be discarded to re-create the original conflicted merge result.

var quit = false;

function something() {
    if(quit) {
       return;
    } 
    quit = true;
    ... other code....
}

Adding this just as an addition to @jimt's excellent answer:

one common way to define it all at initialization time is using an anonymous struct:

var opts = []struct {
    shortnm      byte
    longnm, help string
    needArg      bool
}{
    {'a', "multiple", "Usage for a", false},
    {
        shortnm: 'b',
        longnm:  "b-option",
        needArg: false,
        help:    "Usage for b",
    },
}

This is commonly used for testing as well to define few test cases and loop through them.

You can only close windows/tabs that you create yourself. That is, you cannot programmatically close a window/tab that the user creates.

For example, if you create a window with window.open() you can close it with window.close().

If you are using Maven 2.0.8+, run the mvnDebug command in place of mvn and attach a debugger on port 8000.

For Maven <2.0.8, uncomment the following line in your %M2_HOME%/bin/mvn.bat (and maybe save the modified version as mvnDebug.bat):

@REM set MAVEN_OPTS=-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000

More details in MNG-2105 and Dealing with Eclipse-based IDE.

Take a look to SimpleDateFormat class that can parse a String and return a Date and the getTime method of Date class.

def seconds_to_dhms(time):
    seconds_to_minute   = 60
    seconds_to_hour     = 60 * seconds_to_minute
    seconds_to_day      = 24 * seconds_to_hour

    days    =   time // seconds_to_day
    time    %=  seconds_to_day

    hours   =   time // seconds_to_hour
    time    %=  seconds_to_hour

    minutes =   time // seconds_to_minute
    time    %=  seconds_to_minute

    seconds = time

    print("%d days, %d hours, %d minutes, %d seconds" % (days, hours, minutes, seconds))


time = int(input("Enter the number of seconds: "))
seconds_to_dhms(time)

Output: Enter the number of seconds: 2434234232

Result: 28174 days, 0 hours, 10 minutes, 32 seconds

Try TUQ GEO IP API it's free and really neat and sweet with jsonp support

http://tuq.in/tools/geo

http://tuq.in/tools/geo+stats

One of the easiest ways is to convert to Array:

for(int i = 0; i < set.size(); i++) {
    System.out.println(set.toArray()[i]);
}

the Microsoft Mediaplayer can do all, you need. I use the MS Mediaservices of 2003 / 2008 Server to deliver Video as Broadcast and Unicast Stream. This Service could GET the Stream from the cam and Broadcast it. Than you have "only" the Problem to "Display" that Picture in ALL Browers at all OS-Systems

My Tip :check first the OS , than load your plugin . on Windows it is easy -take WMP , on other take MS Silverligt ...

I would say it's better to use var in most situations.

Local variables are always faster than the variables in global scope.

If you do not use var to declare a variable, the variable will be in global scope.

For more information, you can search "scope chain JavaScript" in Google.

return=[entry for tag in tags for entry in entries if tag in entry for entry in entry]

You never really specified how you wanted them disabled, or what would cause the disabling.

First, you want to figure out how to set the value to disabled, for that you would use JQuery's Attribute Functions, and have that function happen on an event, like a click, or the loading of the document.

You could use Reflection to get the value of the property.

list = list.OrderBy( x => TypeHelper.GetPropertyValue( x, sortBy ) )
           .ToList();

Where TypeHelper has a static method like:

public static class TypeHelper
{
    public static object GetPropertyValue( object obj, string name )
    {
        return obj == null ? null : obj.GetType()
                                       .GetProperty( name )
                                       .GetValue( obj, null );
    }
}

You might also want to look at Dynamic LINQ from the VS2008 Samples library. You could use the IEnumerable extension to cast the List as an IQueryable and then use the Dynamic link OrderBy extension.

 list = list.AsQueryable().OrderBy( sortBy + " " + sortDirection );

Make sure that you've installed php-mysql, the pdo needs php-mysql to operate properly. If not you could simply type

sudo apt install php-mysql

JavaScript version in case if jQuery is not an option.

window.screen.availHeight

You can't do exactly what you're describing, since a:hover is part of the selector, not the CSS rules. A stylesheet has two components:

selector {rules}

Inline styles only have rules; the selector is implicit to be the current element.

The selector is an expressive language that describes a set of criteria to match elements in an XML-like document.

However, you can get close, because a style set can technically go almost anywhere:

<html>
  <style>
    #uniqueid:hover {do:something;}
  </style>
  <a id="uniqueid">hello</a>
</html>

rem set defaults:
set filename1="c:\file1.txt"
set filename2="c:\file2.txt"
set filename3="c:\file3.txt"
rem set parameters:
IF NOT "a%1"=="a" (set filename1="%1")
IF NOT "a%2"=="a" (set filename2="%2")
IF NOT "a%3"=="a" (set filename1="%3")
echo %filename1%, %filename2%, %filename3%

Be careful with quotation characters though, you may or may not need them in your variables.

None of these answers worked for me, tried Wireless too. I noticed adb.exe was constantly running in my system processes. Right clicked on them and found adb was running automatically from an installed app (Droid Explorer in my case). Once I uninstalled the app that was automatically starting ADB, i could kill the process and see that adb was no longer running on it's own. Ran the updated adb from platform-tools and good to go! Hope this helps someone.

If you don't have to support IE, you can use selectionStart and selectionEnd attributes of textarea.

To get caret position just use selectionStart:

function getCaretPosition(textarea) {
  return textarea.selectionStart
}

To get the strings surrounding the selection, use following code:

function getSurroundingSelection(textarea) {
  return [textarea.value.substring(0, textarea.selectionStart)
         ,textarea.value.substring(textarea.selectionStart, textarea.selectionEnd)
         ,textarea.value.substring(textarea.selectionEnd, textarea.value.length)]
}

Demo on JSFiddle.

See also HTMLTextAreaElement docs.

You may create a new list with an input of a previous list like so:

List one = new ArrayList()
//... add data, sort, etc
List two = new ArrayList(one);

This will allow you to modify the order or what elemtents are contained independent of the first list.

Keep in mind that the two lists will contain the same objects though, so if you modify an object in List two, the same object will be modified in list one.

example:

MyObject value1 = one.get(0);
MyObject value2 = two.get(0);
value1 == value2 //true
value1.setName("hello");
value2.getName(); //returns "hello"

Edit

To avoid this you need a deep copy of each element in the list like so:

List<Torero> one = new ArrayList<Torero>();
//add elements

List<Torero> two = new Arraylist<Torero>();
for(Torero t : one){
    Torero copy = deepCopy(t);
    two.add(copy);
}

with copy like the following:

public Torero deepCopy(Torero input){
    Torero copy = new Torero();
    copy.setValue(input.getValue());//.. copy primitives, deep copy objects again

    return copy;
}

You should not need to access Maven-specific files to get the version information of any given library/class.

You can simply use getClass().getPackage().getImplementationVersion() to get the version information that is stored in a .jar-files MANIFEST.MF. Luckily Maven is smart enough Unfortunately Maven does not write the correct information to the manifest as well by default!

Instead one has to modify the <archive> configuration element of the maven-jar-plugin to set addDefaultImplementationEntries and addDefaultSpecificationEntries to true, like this:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <configuration>
        <archive>                   
            <manifest>
                <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
            </manifest>
        </archive>
    </configuration>
</plugin>

Ideally this configuration should be put into the company pom or another base-pom.

Detailed documentation of the <archive> element can be found in the Maven Archive documentation.

Polymorphism relates to the ability of a language to have different object treated uniformly by using a single interfaces; as such it is related to overriding, so the interface (or the base class) is polymorphic, the implementor is the object which overrides (two faces of the same medal)

anyway, the difference between the two terms is better explained using other languages, such as c++: a polymorphic object in c++ behaves as the java counterpart if the base function is virtual, but if the method is not virtual the code jump is resolved statically, and the true type not checked at runtime so, polymorphism include the ability for an object to behave differently depending on the interface used to access it; let me make an example in pseudocode:

class animal {
    public void makeRumor(){
        print("thump");
    }
}
class dog extends animal {
    public void makeRumor(){
        print("woff");
    }
}

animal a = new dog();
dog b = new dog();

a.makeRumor() -> prints thump
b.makeRumor() -> prints woff

(supposing that makeRumor is NOT virtual)

java doesn't truly offer this level of polymorphism (called also object slicing).

animal a = new dog(); dog b = new dog();

a.makeRumor() -> prints thump
b.makeRumor() -> prints woff

on both case it will only print woff.. since a and b is refering to class dog

You want:

if (document.getElementById('customx').value === ""){
    //do something
}

The value property will give you a string value and you need to compare that against an empty string.

Main culprit for this error is logic which determines encoding when converting Stream or byte[] array to .NET string.

Using StreamReader created with 2nd constructor parameter detectEncodingFromByteOrderMarks set to true, will determine proper encoding and create string which does not break XmlDocument.LoadXml method.

public string GetXmlString(string url)
{
    using var stream = GetResponseStream(url);
    using var reader = new StreamReader(stream, true);
    return reader.ReadToEnd(); // no exception on `LoadXml`
}

Common mistake would be to just blindly use UTF8 encoding on the stream or byte[]. Code bellow would produce string that looks valid when inspected in Visual Studio debugger, or copy-pasted somewhere, but it will produce the exception when used with Load or LoadXml if file is encoded differently then UTF8 without BOM.

public string GetXmlString(string url)
{
    byte[] bytes = GetResponseByteArray(url);
    return System.Text.Encoding.UTF8.GetString(bytes); // potentially exception on `LoadXml`
}

So, in the case of your third party library, they probably use 2nd approach to decode XML stream to string, thus the exception.

Well, I'm not sure if my solution is best practice. Using the NotificationBuilder my code looks like that:

private void showNotification() {
    Intent notificationIntent = new Intent(this, MainActivity.class);

    PendingIntent contentIntent = PendingIntent.getActivity(
                this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
    builder.setContentIntent(contentIntent);
    NotificationManager notificationManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    notificationManager.notify(NOTIFICATION_ID, builder.build());
    }

Manifest:

    <activity
        android:name=".MainActivity"
        android:launchMode="singleInstance"
    </activity>

and here the Service:

    <service
        android:name=".services.ProtectionService"
        android:launchMode="singleTask">
    </service>

I don't know if there really is a singleTask at Service but this works properly at my application...

Try this:

<?php
    echo <<<HTML

    Your HTML tags here

HTML;
?>

Here's how Rails does it:

   def underscore(camel_cased_word)
     camel_cased_word.to_s.gsub(/::/, '/').
       gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
       gsub(/([a-z\d])([A-Z])/,'\1_\2').
       tr("-", "_").
       downcase
   end

In Bash if you export the variable within a subshell, using parentheses as shown, you avoid leaking the exported variables:

#!/bin/bash

TESTVARIABLE=hellohelloheloo
(
export TESTVARIABLE    
source ./test2.sh
)

The advantage here is that after you run the script from the command line, you won't see a $TESTVARIABLE leaked into your environment:

$ ./test.sh
hellohelloheloo
$ echo $TESTVARIABLE
                            #empty! no leak
$

You have multiple columns named the same thing in your inner query, so the error is raised in the outer query. If you get rid of the outer query, it should run, although still be confusing:

SELECT DISTINCT
    coaches.id,
    people.*,
    users.*,
    coaches.*
FROM "COACHES"
    INNER JOIN people ON people.id = coaches.person_id
    INNER JOIN users ON coaches.person_id = users.person_id
    LEFT OUTER JOIN organizations_users ON organizations_users.user_id = users.id
WHERE
    rownum <= 25

It would be much better (for readability and performance both) to specify exactly what fields you need from each of the tables instead of selecting them all anyways. Then if you really need two fields called the same thing from different tables, use column aliases to differentiate between them.

Possible first line of every Bash script/session:

say() { for line in "${@}" ; do printf "%s\n" "${line}" ; done ; }

Use e.g.:

$ aa=( 7 -4 -e ) ; say "${aa[@]}"
7
-4
-e

May consider: echo interprets -e as option here

Python convert radians to degrees or degrees to radians:

What are Radians and what problem does it solve?:

Radians and degrees are two separate units of measure that help people express and communicate precise changes in direction. Wikipedia has some great intuition with their infographics on how one Radian is defined relative to degrees:

https://en.wikipedia.org/wiki/Radian

Python examples using libraries calculating degrees from radians:

>>> import math
>>> math.degrees(0)                       #0 radians == 0 degrees
0.0
>>> math.degrees(math.pi/2)               #pi/2 radians is 90 degrees
90.0
>>> math.degrees(math.pi)                 #pi radians is 180 degrees
180.0      
>>> math.degrees(math.pi+(math.pi/2))     #pi+pi/2 radians is 270 degrees
270.0 
>>> math.degrees(math.pi+math.pi)         #2*pi radians is 360 degrees
360.0      

Python examples using libraries calculating radians from degrees:

>>> import math
>>> math.radians(0)           #0 degrees == 0 radians
0.0
>>> math.radians(90)          #90 degrees is pi/2 radians
1.5707963267948966
>>> math.radians(180)         #180 degrees is pi radians
3.141592653589793
>>> math.radians(270)         #270 degrees is pi+(pi/2) radians
4.71238898038469
>>> math.radians(360)         #360 degrees is 2*pi radians
6.283185307179586

Source: https://docs.python.org/3/library/math.html#angular-conversion

The mathematical notation:

You can do degree/radian conversion without libraries:

If you roll your own degree/radian converter, you have to write your own code to handle edge cases.

Mistakes here are easy to make, and will hurt just like it hurt the developers of the 1999 mars orbiter who sunk $125m dollars crashing it into Mars because of non intuitive edge cases here.

Lets crash that orbiter and Roll our own Radians to Degrees:

Invalid radians as input return garbage output.

>>> 0 * 180.0 / math.pi                         #0 radians is 0 degrees
0.0
>>> (math.pi/2) * 180.0 / math.pi               #pi/2 radians is 90 degrees
90.0
>>> (math.pi) * 180.0 / math.pi                 #pi radians is 180 degrees
180.0
>>> (math.pi+(math.pi/2)) * 180.0 / math.pi     #pi+(pi/2) radians is 270 degrees
270.0
>>> (2 * math.pi) * 180.0 / math.pi             #2*pi radians is 360 degrees
360.0

Degrees to radians:

>>> 0 * math.pi / 180.0              #0 degrees in radians
0.0
>>> 90 * math.pi / 180.0             #90 degrees in radians
1.5707963267948966
>>> 180 * math.pi / 180.0            #180 degrees in radians
3.141592653589793
>>> 270 * math.pi / 180.0            #270 degrees in radians
4.71238898038469
>>> 360 * math.pi / 180.0            #360 degrees in radians
6.283185307179586

Expressing multiple rotations with degrees and radians

Single rotation valid radian values are between 0 and 2*pi. Single rotation degree values are between 0 and 360. However if you want to express multiple rotations, valid radian and degree values are between 0 and infinity.

>>> import math
>>> math.radians(360)                 #one complete rotation
6.283185307179586
>>> math.radians(360+360)             #two rotations
12.566370614359172
>>> math.degrees(12.566370614359172)  #math.degrees and math.radians preserve the
720.0                                 #number of rotations

Collapsing multiple rotations:

You can collapse multiple degree/radian rotations into a single rotation by modding against the value of one rotation. For degrees you mod by 360, for radians you modulus by 2*pi.

>>> import math
>>> math.radians(720+90)        #2 whole rotations plus 90 is 14.14 radians
14.137166941154069
>>> math.radians((720+90)%360)  #14.1 radians brings you to 
1.5707963267948966              #the end point as 1.57 radians.

>>> math.degrees((2*math.pi)+(math.pi/2))            #one rotation plus a quarter 
450.0                                                #rotation is 450 degrees.
>>> math.degrees(((2*math.pi)+(math.pi/2))%(2*math.pi)) #one rotation plus a quarter
90.0                                                    #rotation brings you to 90.

Protip

Khan academy has some excellent content to solidify intuition around trigonometry and angular mathematics: https://www.khanacademy.org/math/algebra2/trig-functions/intro-to-radians-alg2/v/introduction-to-radians

To further expand on @neontapir's solution, here's a more generic solution that can apply to HttpRequestMessage or HttpResponseMessage equally and doesn't require hand coded expressions or functions.

using System.Net.Http;
using System.Collections.Generic;
using System.Linq;

public static class HttpResponseMessageExtensions
{
    public static T GetFirstHeaderValueOrDefault<T>(
        this HttpResponseMessage response,
        string headerKey)
    {
        var toReturn = default(T);

        IEnumerable<string> headerValues;

        if (response.Content.Headers.TryGetValues(headerKey, out headerValues))
        {
            var valueString = headerValues.FirstOrDefault();
            if (valueString != null)
            {
                return (T)Convert.ChangeType(valueString, typeof(T));
            }
        }

        return toReturn;
    }
}

Sample usage:

var myValue = response.GetFirstHeaderValueOrDefault<int>("MyValue");

I haven't tried specifically getting the VM settings, but there is a wealth of information in the JMX utilities specifically the MXBean utilities. This would be where I would start. Hopefully you find something there to help you.

The sun website has a bunch on the technology:

http://java.sun.com/javase/6/docs/technotes/guides/management/mxbeans.html

Using ToString("HH:mm") certainly gives you what you want as a string.

If you want the current hour/minute as numbers, string manipulation isn't necessary; you can use the TimeOfDay property:

TimeSpan timeOfDay = fechaHora.TimeOfDay;
int hour = timeOfDay.Hours;
int minute = timeOfDay.Minutes;

Try these: pip install --upgrade setuptools or easy_install -U setuptools

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

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

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

The numpy and scipy libraries include the composite trapezoidal (numpy.trapz) and Simpson's (scipy.integrate.simps) rules.

Here's a simple example. In both trapz and simps, the argument dx=5 indicates that the spacing of the data along the x axis is 5 units.

from __future__ import print_function

import numpy as np
from scipy.integrate import simps
from numpy import trapz


# The y values.  A numpy array is used here,
# but a python list could also be used.
y = np.array([5, 20, 4, 18, 19, 18, 7, 4])

# Compute the area using the composite trapezoidal rule.
area = trapz(y, dx=5)
print("area =", area)

# Compute the area using the composite Simpson's rule.
area = simps(y, dx=5)
print("area =", area)

Output:

area = 452.5
area = 460.0

var arrayOne = [1,2,3]
var arrayTwo = [4,5,6]

if you want result as : [1,2,3,[4,5,6]]

arrayOne.append(arrayTwo)

above code will convert arrayOne as a single element and add it to the end of arrayTwo.

if you want result as : [1, 2, 3, 4, 5, 6] then,

arrayOne.append(contentsOf: arrayTwo)

above code will add all the elements of arrayOne at the end of arrayTwo.

Thanks.

With selenium 2,

i usually write it like that :

WebElement element = driver.findElement(By.id("input_name"));
String elementval = element.getAttribute("value");

OR

String elementval = driver.findElement(By.id("input_name")).getAttribute("value");

One of the ways you use a singleton is to cover an instance where there must be a single "broker" controlling access to a resource. Singletons are good in loggers because they broker access to, say, a file, which can only be written to exclusively. For something like logging, they provide a way of abstracting away the writes to something like a log file -- you could wrap a caching mechanism to your singleton, etc...

Also think of a situation where you have an application with many windows/threads/etc, but which needs a single point of communication. I once used one to control jobs that I wanted my application to launch. The singleton was responsible for serializing the jobs and displaying their status to any other part of the program which was interested. In this sort of scenario, you can look at a singleton as being sort of like a "server" class running inside your application... HTH

just parse as an array:

Review[] reviews = new Gson().fromJson(jsonString, Review[].class);

then if you need you can also create a list in this way:

List<Review> asList = Arrays.asList(reviews);

P.S. your json string should be look like this:

[
    {
        "reviewerID": "A2SUAM1J3GNN3B1",
        "asin": "0000013714",
        "reviewerName": "J. McDonald",
        "helpful": [2, 3],
        "reviewText": "I bought this for my husband who plays the piano.",
        "overall": 5.0,
        "summary": "Heavenly Highway Hymns",
        "unixReviewTime": 1252800000,
        "reviewTime": "09 13, 2009"
    },
    {
        "reviewerID": "A2SUAM1J3GNN3B2",
        "asin": "0000013714",
        "reviewerName": "J. McDonald",
        "helpful": [2, 3],
        "reviewText": "I bought this for my husband who plays the piano.",
        "overall": 5.0,
        "summary": "Heavenly Highway Hymns",
        "unixReviewTime": 1252800000,
        "reviewTime": "09 13, 2009"
    },

    [...]
]

Here's what I did to solve this:

• I removed workspace/.metadata
• run eclipse as an administrator.

As some mentioned the length of the select element decreases when removing an option. If you just want to remove one option this is not an issue but if you intend to remove several options you could get into problems. Some suggested to decrease the index manually when removing an option. In my opinion manually decreasing an index inside a for loop is not a good idea. This is why I would suggest a slightly different for loop where we iterate through all options from behind.

var selectElement = document.getElementById("selectId");

for (var i = selectElement.length - 1; i >= 0; i--){
  if (someCondition) {
    selectElement.remove(i);
  }
}

If you want to remove all options you can do something like this.

var selectElement = document.getElementById("selectId");

while (selectElement.length > 0) {
  selectElement.remove(0);
}

I just finished a sample app that does this in a pretty basic, but clear way. It uses mongoose with mongodb to store users and passport for auth management.

https://github.com/Khelldar/Angular-Express-Train-Seed

I happened to come up with a solution very similar to @Andrew, only DRY

class MetaFoo(type):

    def __new__(mc1, name, bases, nmspc):
        nmspc.update({'thingy': MetaFoo.thingy})
        return super(MetaFoo, mc1).__new__(mc1, name, bases, nmspc)

    @property
    def thingy(cls):
        if not inspect.isclass(cls):
            cls = type(cls)
        return cls._thingy

    @thingy.setter
    def thingy(cls, value):
        if not inspect.isclass(cls):
            cls = type(cls)
        cls._thingy = value

class Foo(metaclass=MetaFoo):
    _thingy = 23

class Bar(Foo)
    _thingy = 12

This has the best of all answers:

The "metaproperty" is added to the class, so that it will still be a property of the instance

1. Don't need to redefine thingy in any of the classes
2. The property works as a "class property" in for both instance and class
3. You have the flexibility to customize how _thingy is inherited

In my case, I actually customized _thingy to be different for every child, without defining it in each class (and without a default value) by:

   def __new__(mc1, name, bases, nmspc):
       nmspc.update({'thingy': MetaFoo.services, '_thingy': None})
       return super(MetaFoo, mc1).__new__(mc1, name, bases, nmspc)

if you use android:scaleType="fitXY" then you must specify

android:layout_width="75dp" and android:layout_height="75dp"

if use wrap_content it will not stretch to what you need

<ImageView
android:layout_width="75dp"
android:layout_height="75dp"
android:id="@+id/listItemNoteImage"
android:src="@drawable/MyImage"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_marginStart="12dp"
android:scaleType="fitXY"/>

Many thanks to Dorian and Phrogz for reminding me about the array (and hash) method #replace, which can "replace the contents of an array or hash."

The notion that a CONSTANT's value can be changed, but with an annoying warning, is one of Ruby's few conceptual mis-steps -- these should either be fully immutable, or dump the constant idea altogether. From a coder's perspective, a constant is declarative and intentional, a signal to other that "this value is truly unchangeable once declared/assigned."

But sometimes an "obvious declaration" actually forecloses other, future useful opportunities. For example...

There are legitimate use cases where a "constant's" value might really need to be changed: for example, re-loading ARGV from a REPL-like prompt-loop, then rerunning ARGV thru more (subsequent) OptionParser.parse! calls -- voila! Gives "command line args" a whole new dynamic utility.

The practical problem is either with the presumptive assumption that "ARGV must be a constant", or in optparse's own initialize method, which hard-codes the assignment of ARGV to the instance var @default_argv for subsequent processing -- that array (ARGV) really should be a parameter, encouraging re-parse and re-use, where appropriate. Proper parameterization, with an appropriate default (say, ARGV) would avoid the need to ever change the "constant" ARGV. Just some 2¢-worth of thoughts...

nobody seem to have offered the option to get the JSON directly from the Postgresql server, using the postgres JSON capability https://www.postgresql.org/docs/9.4/static/functions-json.html

No parsing, looping or any memory consumption on the python side, which you may really want to consider if you're dealing with 100,000's or millions of rows.

from django.db import connection

sql = 'SELECT to_json(result) FROM (SELECT * FROM TABLE table) result)'
with connection.cursor() as cursor:
  cursor.execute(sql)
  output = cursor.fetchall()

a table like:

id, value
----------
1     3
2     7

will return a Python JSON Object

[{"id": 1, "value": 3},{"id":2, "value": 7}]

Then use json.dumps to dump as a JSON string

You just need to add three file and two css links. You can either cdn's as well. Links for the js files and css files are as such :-

1. jQuery.dataTables.min.js
2. dataTables.bootstrap.min.js
3. dataTables.bootstrap.min.css
4. bootstrap-datepicker.css
5. bootstrap-datepicker.js

They are valid if you are using bootstrap in your project.

I hope this will help you. Regards, Vivek Singla

I had the same problem. The answers got me on the right track. So the problem is that functions marked with async don't return a task of the function itself as expected (but another continuation task of the function).

So its the "await"and "async" keywords that screws thing up. The simplest solution then is simply to remove them. Then it works as expected. As in:

static void Main(string[] args)
{
    Console.WriteLine("Foo called");
    var result = Foo(5);

    while (result.Status != TaskStatus.RanToCompletion)
    {
        Console.WriteLine("Thread ID: {0}, Status: {1}", Thread.CurrentThread.ManagedThreadId, result.Status);
        Task.Delay(100).Wait();
    }

    Console.WriteLine("Result: {0}", result.Result);
    Console.WriteLine("Finished.");
    Console.ReadKey(true);
}

private static Task<string> Foo(int seconds)
{
    return Task.Run(() =>
    {
        for (int i = 0; i < seconds; i++)
        {
            Console.WriteLine("Thread ID: {0}, second {1}.", Thread.CurrentThread.ManagedThreadId, i);
            Task.Delay(TimeSpan.FromSeconds(1)).Wait();
        }

        return "Foo Completed.";
    });
}

Which outputs:

Foo called
Thread ID: 1, Status: WaitingToRun
Thread ID: 3, second 0.
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 3, second 1.
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 3, second 2.
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 3, second 3.
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 3, second 4.
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Thread ID: 1, Status: Running
Result: Foo Completed.
Finished.

I.e. for Visual Studio 2013 I would reference this assembly:

Microsoft.VisualStudio.Shell.14.0.dll

You can find it i.e. here:

C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\Extensions\BugAid Software\BugAid\1.0

and don't forget to implement:

using Microsoft.VisualStudio;

So the solution to the original problem is that you don't need both the "@see" and the "{@link...}" references on the same line. The "@link" tag is self-sufficient and, as noted, you can put it anywhere in the javadoc block. So you can mix the two approaches:

/**
 * some javadoc stuff
 * {@link com.my.package.Class#method()}
 * more stuff
 * @see com.my.package.AnotherClass
 */

I had the same isuee and did all the magic above, the only thing that did the magic for me is from https://github.com/atom/atom/issues/2435

"Because the --msvs_version=2013 is not passed to node-gyp when it's run by the build script. Set the GYP_MSVS_VERSION = 2013 env variable and it should work after."

Bang! it worked

ViewPager.setOnPageChangeListener is deprecated now. You now need to use ViewPager.addOnPageChangeListener instead.

for example,

viewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

        }

        @Override
        public void onPageSelected(int position) {

        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });

This was nice solution from here

InputFilter filter= new InputFilter() { 
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) { 
        for (int i = start; i < end; i++) { 
            String checkMe = String.valueOf(source.charAt(i));

            Pattern pattern = Pattern.compile("[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789_]*");
            Matcher matcher = pattern.matcher(checkMe);
            boolean valid = matcher.matches();
            if(!valid){
                Log.d("", "invalid");
                return "";
            }
        } 
        return null; 
    } 
};

edit.setFilters(new InputFilter[]{filter}); 

Because performance was really important for me, I benchmarked all the functions above.

NOTE: Data from @Simon O'Hanlon's post. Only with size 15000 instead of 10.

library(tidyverse)
library(microbenchmark)

set.seed(123)
df <- data.frame(id = 1:15000,
                 nas = rep(NA, 15000), 
                 vals = sample(c(1:3, NA), 15000,
                               repl = TRUE))
df

MadSconeF1 <- function(x) x[, colSums(is.na(x)) != nrow(x)]

MadSconeF2 <- function(x) x[colSums(!is.na(x)) > 0]

BradCannell <- function(x) x %>% select_if(~sum(!is.na(.)) > 0)

SimonOHanlon <- function(x) x[ , !apply(x, 2 ,function(y) all(is.na(y)))]

jsta <- function(x) janitor::remove_empty(x)

SiboJiang <- function(x) x %>% dplyr::select_if(~!all(is.na(.)))

akrun <- function(x) Filter(function(y) !all(is.na(y)), x)

mbm <- microbenchmark(
  "MadSconeF1" = {MadSconeF1(df)},
  "MadSconeF2" = {MadSconeF2(df)},
  "BradCannell" = {BradCannell(df)},
  "SimonOHanlon" = {SimonOHanlon(df)},
  "SiboJiang" = {SiboJiang(df)},
  "jsta" = {jsta(df)}, 
  "akrun" = {akrun(df)},
  times = 1000)

mbm

Results:

Unit: microseconds
         expr    min      lq      mean  median      uq      max neval  cld
   MadSconeF1  154.5  178.35  257.9396  196.05  219.25   5001.0  1000 a   
   MadSconeF2  180.4  209.75  281.2541  226.40  251.05   6322.1  1000 a   
  BradCannell 2579.4 2884.90 3330.3700 3059.45 3379.30  33667.3  1000    d
 SimonOHanlon  511.0  565.00  943.3089  586.45  623.65 210338.4  1000  b  
    SiboJiang 2558.1 2853.05 3377.6702 3010.30 3310.00  89718.0  1000    d
         jsta 1544.8 1652.45 2031.5065 1706.05 1872.65  11594.9  1000   c 
        akrun   93.8  111.60  139.9482  121.90  135.45   3851.2  1000 a


autoplot(mbm)

mbm %>% 
  tbl_df() %>%
  ggplot(aes(sample = time)) + 
  stat_qq() + 
  stat_qq_line() +
  facet_wrap(~expr, scales = "free")

The below code provides the results which replaces NULL to zero in the output.

Table creation and data insertion:

create table test_table
 (
 date nvarchar(10),
 category char(3),
 amount money
 )

 insert into test_table values ('1/1/2012','ABC',1000.00)
 insert into test_table values ('2/1/2012','DEF',500.00)
 insert into test_table values ('2/1/2012','GHI',800.00)
 insert into test_table values ('2/10/2012','DEF',700.00)
 insert into test_table values ('3/1/2012','ABC',1100.00)

Query to generate the exact results which also replaces NULL with zeros:

DECLARE @DynamicPivotQuery AS NVARCHAR(MAX),
@PivotColumnNames AS NVARCHAR(MAX),
@PivotSelectColumnNames AS NVARCHAR(MAX)

--Get distinct values of the PIVOT Column
SELECT @PivotColumnNames= ISNULL(@PivotColumnNames + ',','')
+ QUOTENAME(category)
FROM (SELECT DISTINCT category FROM test_table) AS cat

--Get distinct values of the PIVOT Column with isnull
SELECT @PivotSelectColumnNames 
= ISNULL(@PivotSelectColumnNames + ',','')
+ 'ISNULL(' + QUOTENAME(category) + ', 0) AS '
+ QUOTENAME(category)
FROM (SELECT DISTINCT category FROM test_table) AS cat

--Prepare the PIVOT query using the dynamic 
SET @DynamicPivotQuery = 
N'SELECT date, ' + @PivotSelectColumnNames + '
FROM test_table
pivot(sum(amount) for category in (' + @PivotColumnNames + ')) as pvt';

--Execute the Dynamic Pivot Query
EXEC sp_executesql @DynamicPivotQuery

OUTPUT :

Simply cleaning the project solved it for me.

My project is a C++ application (not a shared library). I randomly got this error after a lot of successful builds.

2 things you should note:

1. Strings in Java are immutable to so you need to store return value of thereplace method call in another String.
2. You don't really need a regex here, just a simple call to String#replace(String) will do the job.

So just use this code:

String replaced = string.replace("abcd", "dddd");

This should work (where enquiryId is the id you need to match against):

vehicles.RemoveAll(vehicle => vehicle.EnquiryID == enquiryId);

What this does is passes each vehicle in the list into the lambda predicate, evaluating the predicate. If the predicate returns true (ie. vehicle.EnquiryID == enquiryId), then the current vehicle will be removed from the list.

If you know the types of the objects in your collections, then using the generic collections is a better approach. It avoids casting when retrieving objects from the collections, but can also avoid boxing if the items in the collection are value types (which can cause performance issues).

If Not temp_rst1 Is Nothing Then ...

Use a for...in loop:

for (let k in obj) {
    if (obj[k] === "test1") {
        return true;
    }
}

You are correct that your cTag class must implement IComparable<T> interface. Then you can just call Sort() on your list.

To implement IComparable<T> interface, you must implement CompareTo(T other) method. The easiest way to do this is to call CompareTo method of the field you want to compare, which in your case is date.

public class cTag:IComparable<cTag> {
    public int id { get; set; }
    public int regnumber { get; set; }
    public string date { get; set; }
    public int CompareTo(cTag other) {
        return date.CompareTo(other.date);
    }
}

However, this wouldn't sort well, because this would use classic sorting on strings (since you declared date as string). So I think the best think to do would be to redefine the class and to declare date not as string, but as DateTime. The code would stay almost the same:

public class cTag:IComparable<cTag> {
    public int id { get; set; }
    public int regnumber { get; set; }
    public DateTime date { get; set; }
    public int CompareTo(cTag other) {
        return date.CompareTo(other.date);
    }
}

Only thing you'd have to do when creating the instance of the class to convert your string containing the date into DateTime type, but it can be done easily e.g. by DateTime.Parse(String) method.

You need to log in with the correct username and password. Does the user root have permission to access the database? or did you create a specific user to do this?

The other issue might be that you are not using a password when trying to log in.

This worked for me. If we want to just add an additional field in ModelSerializer, we can do it like below, and also the field can be assigned some val after some calculations of lookup. Or in some cases, if we want to send the parameters in API response.

In model.py

class Foo(models.Model):
    """Model Foo"""
    name = models.CharField(max_length=30, help_text="Customer Name")

In serializer.py

class FooSerializer(serializers.ModelSerializer):
    retrieved_time = serializers.SerializerMethodField()
    
    @classmethod
    def get_retrieved_time(self, object):
        """getter method to add field retrieved_time"""
        return None

  class Meta:
        model = Foo
        fields = ('id', 'name', 'retrieved_time ')

Hope this could help someone.

Regarding TypeDescriptor from Sean's reply (I can't comment because I have a bad reputation)... one advantage to using TypeDescriptor over GetProperties() is that TypeDescriptor has a mechanism for dynamically attaching properties to objects at runtime and normal reflection will miss these.

For example, when working with PowerShell's PSObject, which can have properties and methods added at runtime, they implemented a custom TypeDescriptor which merges these members in with the standard member set. By using TypeDescriptor, your code doesn't need to be aware of that fact.

Components, controls, and I think maybe DataSets also make use of this API.

request.get_host() will give you the domain.

Actually none of the proposed answers, although a good practice, would remove the warning.

For the sake of correctness, I'd do the following:

function getParameter($param, $defaultValue) {
    if (array_key_exists($param, $_GET)) {
        $value=$_GET[$param];
        return isSet($value)?$value:$defaultValue;
    }
    return $defaultValue;
}

This way, I check the _GET array for the key to exist without triggering the Warning. It's not a good idea to disable the warnings because a lot of times they are at least interesting to take a look.

To use the function you just do:

$myvar = getParameter("getparamer", "defaultValue")

so if the parameter exists, you get the value, and if it doesnt, you get the defaultValue.

You can use .filter() or .find(). One difference that filter will iterate over all items and returns any which passes the condition as array while find will return the first matched item and break the iteration.

Example

var questions = [_x000D_
      {id: 1, question: "Do you feel a connection to a higher source and have a sense of comfort knowing that you are part of something greater than yourself?", category: "Spiritual", subs: []},_x000D_
      {id: 2, question: "Do you feel you are free of unhealthy behavior that impacts your overall well-being?", category: "Habits", subs: []},_x000D_
      {id: 3, question: "Do you feel you have healthy and fulfilling relationships?", category: "Relationships", subs: []},_x000D_
      {id: 4, question: "Do you feel you have a sense of purpose and that you have a positive outlook about yourself and life?", category: "Emotional Well-being", subs: []},_x000D_
      {id: 5, question: "Do you feel you have a healthy diet and that you are fueling your body for optimal health? ", category: "Eating Habits ", subs: []},_x000D_
      {id: 6, question: "Do you feel that you get enough rest and that your stress level is healthy?", category: "Relaxation ", subs: []},_x000D_
      {id: 7, question: "Do you feel you get enough physical activity for optimal health?", category: "Exercise ", subs: []},_x000D_
      {id: 8, question: "Do you feel you practice self-care and go to the doctor regularly?", category: "Medical Maintenance", subs: []},_x000D_
      {id: 9, question: "Do you feel satisfied with your income and economic stability?", category: "Financial", subs: []},_x000D_
      {id: 10, question: "Do you feel you do fun things and laugh enough in your life?", category: "Play", subs: []},_x000D_
      {id: 11, question: "Do you feel you have a healthy sense of balance in this area of your life?", category: "Work-life Balance", subs: []},_x000D_
      {id: 12, question: "Do you feel a sense of peace and contentment  in your home? ", category: "Home Environment", subs: []},_x000D_
      {id: 13, question: "Do you feel that you are challenged and growing as a person?", category: "Intellectual Wellbeing", subs: []},_x000D_
      {id: 14, question: "Do you feel content with what you see when you look in the mirror?", category: "Self-image", subs: []},_x000D_
      {id: 15, question: "Do you feel engaged at work and a sense of fulfillment with your job?", category: "Work Satisfaction", subs: []}_x000D_
];_x000D_
_x000D_
function getDimensionsByFilter(id){_x000D_
  return questions.filter(x => x.id === id);_x000D_
}_x000D_
_x000D_
function getDimensionsByFind(id){_x000D_
  return questions.find(x => x.id === id);_x000D_
}_x000D_
_x000D_
var test = getDimensionsByFilter(10);_x000D_
console.log(test);_x000D_
_x000D_
test = getDimensionsByFind(10);_x000D_
console.log(test);

You have the wrong URL.

I don't know what you mean by "JDBC 2005". When I looked on the microsoft site, I found something called the Microsoft SQL Server JDBC Driver 2.0. You're going to want that one - it includes lots of fixes and some perf improvements. [edit: you're probably going to want the latest driver. As of March 2012, the latest JDBC driver from Microsoft is JDBC 4.0]

Check the release notes. For this driver, you want:

URL:  jdbc:sqlserver://server:port;DatabaseName=dbname
Class name: com.microsoft.sqlserver.jdbc.SQLServerDriver

It seems you have the class name correct, but the URL wrong.

Microsoft changed the class name and the URL after its initial release of a JDBC driver. The URL you are using goes with the original JDBC driver from Microsoft, the one MS calls the "SQL Server 2000 version". But that driver uses a different classname.

For all subsequent drivers, the URL changed to the form I have here.

This is in the release notes for the JDBC driver.

Suppose you have not renamed your public folder. Your css and js files are in css and js subfolders in public folder. Now your header will be :

<link rel="stylesheet" type="text/css" href="/public/css/icon.css"/>
<script type="text/javascript" src="/public/js/jquery.easyui.min.js"></script>

Here's a couple of recommendations I can make:

node-amqp: A RabbitMQ client that I have successfully used in combination with Socket.IO to make a real-time multi-player game and chat application amongst other things. Seems reliable enough.

zeromq.node: If you want to go down the non-brokered route this might be worth a look. More work to implement functionality but your more likely to get lower latency and higher throughput.

The accepted answer is close... but no cigar!

Use textContent instead of innerHTML if you strictly want a string to be returned to you.

innerHTML can have the side effect of giving you a node element if there's other dom elements in there. textContent will guard against this possibility.

FAT32 along with FAT16 and FAT12 are File System Types, but vfat along with umsdos and msdos are drivers, used to mount the FAT file systems in Linux. The choosing of the driver determines how some of the features are applied to the file system, for example, systems mounted with msdos driver don't have long filenames (they are 8.3 format). vfat is the most common driver for mounting FAT32 file systems nowadays.

Source: this wikipedia article

Output of commands like df and lsblk indeed show vfat as the File System Type. But sudo file -sL /dev/<partition> shows FAT (32 bit) if a File System is FAT32.

You can confirm vfat is a module and not a File System Type by running modinfo vfat.

As others have responded, the key you are trying to parse doesn't have the proper PKCS#8 headers which Oracle's PKCS8EncodedKeySpec needs to understand it. If you don't want to convert the key using openssl pkcs8 or parse it using JDK internal APIs you can prepend the PKCS#8 header like this:

static final Base64.Decoder DECODER = Base64.getMimeDecoder();

private static byte[] buildPKCS8Key(File privateKey) throws IOException {
  final String s = new String(Files.readAllBytes(privateKey.toPath()));
  if (s.contains("--BEGIN PRIVATE KEY--")) {
    return DECODER.decode(s.replaceAll("-----\\w+ PRIVATE KEY-----", ""));
  }
  if (!s.contains("--BEGIN RSA PRIVATE KEY--")) {
    throw new RuntimeException("Invalid cert format: "+ s);
  }

  final byte[] innerKey = DECODER.decode(s.replaceAll("-----\\w+ RSA PRIVATE KEY-----", ""));
  final byte[] result = new byte[innerKey.length + 26];
  System.arraycopy(DECODER.decode("MIIEvAIBADANBgkqhkiG9w0BAQEFAASCBKY="), 0, result, 0, 26);
  System.arraycopy(BigInteger.valueOf(result.length - 4).toByteArray(), 0, result, 2, 2);
  System.arraycopy(BigInteger.valueOf(innerKey.length).toByteArray(), 0, result, 24, 2);
  System.arraycopy(innerKey, 0, result, 26, innerKey.length);
  return result;
}

Once that method is in place you can feed it's output to the PKCS8EncodedKeySpec constructor like this: new PKCS8EncodedKeySpec(buildPKCS8Key(privateKey));

Many people will suggest you use MERGE, but I caution you against it. By default, it doesn't protect you from concurrency and race conditions any more than multiple statements, but it does introduce other dangers:

http://www.mssqltips.com/sqlservertip/3074/use-caution-with-sql-servers-merge-statement/

Even with this "simpler" syntax available, I still prefer this approach (error handling omitted for brevity):

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
BEGIN TRANSACTION;
UPDATE dbo.table SET ... WHERE PK = @PK;
IF @@ROWCOUNT = 0
BEGIN
  INSERT dbo.table(PK, ...) SELECT @PK, ...;
END
COMMIT TRANSACTION;

A lot of folks will suggest this way:

SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
BEGIN TRANSACTION;
IF EXISTS (SELECT 1 FROM dbo.table WHERE PK = @PK)
BEGIN
  UPDATE ...
END
ELSE
BEGIN
  INSERT ...
END
COMMIT TRANSACTION;

But all this accomplishes is ensuring you may need to read the table twice to locate the row(s) to be updated. In the first sample, you will only ever need to locate the row(s) once. (In both cases, if no rows are found from the initial read, an insert occurs.)

Others will suggest this way:

BEGIN TRY
  INSERT ...
END TRY
BEGIN CATCH
  IF ERROR_NUMBER() = 2627
    UPDATE ...
END CATCH

However, this is problematic if for no other reason than letting SQL Server catch exceptions that you could have prevented in the first place is much more expensive, except in the rare scenario where almost every insert fails. I prove as much here:

• http://www.mssqltips.com/sqlservertip/2632/checking-for-potential-constraint-violations-before-entering-sql-server-try-and-catch-logic/
• http://www.sqlperformance.com/2012/08/t-sql-queries/error-handling

Not sure what you think you gain by having a single statement; I don't think you gain anything. MERGE is a single statement but it still has to really perform multiple operations anyway - even though it makes you think it doesn't.

We had this type of problem, but slightly in reverse to your situation - we were providing the iframed content to sites on other domains, so the same origin policy was also an issue. After many hours spent trawling google, we eventually found a (somewhat..) workable solution, which you may be able to adapt to your needs.

There is a way around the same origin policy, but it requires changes on both the iframed content and the framing page, so if you haven't the ability to request changes on both sides, this method won't be very useful to you, i'm afraid.

There's a browser quirk which allows us to skirt the same origin policy - javascript can communicate either with pages on its own domain, or with pages it has iframed, but never pages in which it is framed, e.g. if you have:

 www.foo.com/home.html, which iframes
 |-> www.bar.net/framed.html, which iframes
     |-> www.foo.com/helper.html

then home.html can communicate with framed.html (iframed) and helper.html (same domain).

 Communication options for each page:
 +-------------------------+-----------+-------------+-------------+
 |                         | home.html | framed.html | helper.html |
 +-------------------------+-----------+-------------+-------------+
 | www.foo.com/home.html   |    N/A    |     YES     |     YES     |
 | www.bar.net/framed.html |    NO     |     N/A     |     YES     |
 | www.foo.com/helper.html |    YES    |     YES     |     N/A     |
 +-------------------------+-----------+-------------+-------------+

framed.html can send messages to helper.html (iframed) but not home.html (child can't communicate cross-domain with parent).

The key here is that helper.html can receive messages from framed.html, and can also communicate with home.html.

So essentially, when framed.html loads, it works out its own height, tells helper.html, which passes the message on to home.html, which can then resize the iframe in which framed.html sits.

The simplest way we found to pass messages from framed.html to helper.html was through a URL argument. To do this, framed.html has an iframe with src='' specified. When its onload fires, it evaluates its own height, and sets the src of the iframe at this point to helper.html?height=N

There's an explanation here of how facebook handle it, which may be slightly clearer than mine above!

In www.foo.com/home.html, the following javascript code is required (this can be loaded from a .js file on any domain, incidentally..):

<script>
  // Resize iframe to full height
  function resizeIframe(height)
  {
    // "+60" is a general rule of thumb to allow for differences in
    // IE & and FF height reporting, can be adjusted as required..
    document.getElementById('frame_name_here').height = parseInt(height)+60;
  }
</script>
<iframe id='frame_name_here' src='http://www.bar.net/framed.html'></iframe>

In www.bar.net/framed.html:

<body onload="iframeResizePipe()">
<iframe id="helpframe" src='' height='0' width='0' frameborder='0'></iframe>

<script type="text/javascript">
  function iframeResizePipe()
  {
     // What's the page height?
     var height = document.body.scrollHeight;

     // Going to 'pipe' the data to the parent through the helpframe..
     var pipe = document.getElementById('helpframe');

     // Cachebuster a precaution here to stop browser caching interfering
     pipe.src = 'http://www.foo.com/helper.html?height='+height+'&cacheb='+Math.random();

  }
</script>

Contents of www.foo.com/helper.html:

<html> 
<!-- 
This page is on the same domain as the parent, so can
communicate with it to order the iframe window resizing
to fit the content 
--> 
  <body onload="parentIframeResize()"> 
    <script> 
      // Tell the parent iframe what height the iframe needs to be
      function parentIframeResize()
      {
         var height = getParam('height');
         // This works as our parent's parent is on our domain..
         parent.parent.resizeIframe(height);
      }

      // Helper function, parse param from request string
      function getParam( name )
      {
        name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
        var regexS = "[\\?&]"+name+"=([^&#]*)";
        var regex = new RegExp( regexS );
        var results = regex.exec( window.location.href );
        if( results == null )
          return "";
        else
          return results[1];
      }
    </script> 
  </body> 
</html>

You can use convert from hablar to change a column of the data frame quickly.

library(tidyverse)
library(hablar)

x <- tibble(var = c(1.34, 4.45, 6.98))

x %>% 
  convert(int(var))

gives you:

# A tibble: 3 x 1
    var
  <int>
1     1
2     4
3     6

Wow - this is an interesting discussion. My own thoughts on this:

FP makes some tasks relatively simple (compared to none-FP languages). None-FP languages are already starting to take ideas from FP, so I suspect that this trend will continue and we will see more of a merge which should help people make the leap to FP easier.

You can use curl as is in this thread

For the lazy:

*/5 * * * * curl --request GET 'http://exemple.com/path/check.php?param1=1'

This will be executed every 5 minutes.

We can also check this within our js files

if (parseFloat(window.device.version) >= 7.0) {

    $("body").addClass("ios7");
}

In .css file define a class for this

 .ios7 .ui-page, .ios7 .ui-header, .ios7 .ui-pane {
     margin-top: 17px !important;
  }

A way to be able to use {% break %} or {% continue %} is to write TokenParsers for them.

I did it for the {% break %} token in the code below. You can, without much modifications, do the same thing for the {% continue %}.

• AppBundle\Twig\AppExtension.php:

  namespace AppBundle\Twig;
  
  class AppExtension extends \Twig_Extension
  {
      function getTokenParsers() {
          return array(
              new BreakToken(),
          );
      }
  
      public function getName()
      {
          return 'app_extension';
      }
  }
  

• AppBundle\Twig\BreakToken.php:

  namespace AppBundle\Twig;
  
  class BreakToken extends \Twig_TokenParser
  {
      public function parse(\Twig_Token $token)
      {
          $stream = $this->parser->getStream();
          $stream->expect(\Twig_Token::BLOCK_END_TYPE);
  
          // Trick to check if we are currently in a loop.
          $currentForLoop = 0;
  
          for ($i = 1; true; $i++) {
              try {
                  // if we look before the beginning of the stream
                  // the stream will throw a \Twig_Error_Syntax
                  $token = $stream->look(-$i);
              } catch (\Twig_Error_Syntax $e) {
                  break;
              }
  
              if ($token->test(\Twig_Token::NAME_TYPE, 'for')) {
                  $currentForLoop++;
              } else if ($token->test(\Twig_Token::NAME_TYPE, 'endfor')) {
                  $currentForLoop--;
              }
          }
  
  
          if ($currentForLoop < 1) {
              throw new \Twig_Error_Syntax(
                  'Break tag is only allowed in \'for\' loops.',
                  $stream->getCurrent()->getLine(),
                  $stream->getSourceContext()->getName()
              );
          }
  
          return new BreakNode();
      }
  
      public function getTag()
      {
          return 'break';
      }
  }
  

• AppBundle\Twig\BreakNode.php:

  namespace AppBundle\Twig;
  
  class BreakNode extends \Twig_Node
  {
      public function compile(\Twig_Compiler $compiler)
      {
          $compiler
              ->write("break;\n")
          ;
      }
  }
  

Then you can simply use {% break %} to get out of loops like this:

{% for post in posts %}
    {% if post.id == 10 %}
        {% break %}
    {% endif %}
    <h2>{{ post.heading }}</h2>
{% endfor %}

To go even further, you may write token parsers for {% continue X %} and {% break X %} (where X is an integer >= 1) to get out/continue multiple loops like in PHP.

Check the package plotext which allows to plot data directly on terminal using python3. It is very intuitive as its use is very similar to the matplotlib package.

Here is a basic example:

You can install it with the following command:

sudo -H pip install plotext

As for matplotlib, the main functions are scatter (for single points), plot (for points joined by lines) and show (to actually print the plot on terminal). It is easy to specify the plot dimensions, the point and line styles and whatever to show the axes, number ticks and final equations, which are used to convert the plotted coordinates to the original real values.

Here is the code to produce the plot shown above:

import plotext.plot as plx
import numpy as np

l=3000
x=np.arange(0, l)
y=np.sin(4*np.pi/l*np.array(x))*np.exp(-0.5*np.pi/l*x)

plx.scatter(x, y, rows = 17, cols = 70)
plx.show(clear = 0)

The option clear=True inside show is used to clear the terminal before plotting: this is useful, for example, when plotting a continuous flow of data. An example of plotting a continuous data flow is shown here:

The package description provides more information how to customize the plot. The package has been tested on Ubuntu 16 where it works perfectly. Possible future developments (upon request) could involve extension to python2 and to other graphical interfaces (e.g. jupiter). Please let me know if you have any issues using it. Thanks.

I hope this answers your problem.

personaly, i'm using exceptions to handle validation. it requires following steps:

1. in your data binding expression, you need to add "ValidatesOnException=True"
2. in you data object you are binding to, you need to add DependencyPropertyChanged handler where you check if new value fulfills your conditions - if not - you restore to the object old value (if you need to) and you throw exception.
3. in your control template you use for displaying invalid value in the control, you can access Error collection and display exception message.

the trick here, is to bind only to objects which derive from DependencyObject. simple implementation of INotifyPropertyChanged wouldn't work - there is a bug in the framework, which prevents you from accessing error collection.

    //Example to define how to do :

    DataTable dt = new DataTable();   

    dt.Columns.Add("ID");
    dt.Columns.Add("FirstName");
    dt.Columns.Add("LastName");
    dt.Columns.Add("Address");
    dt.Columns.Add("City");
           //  The table structure is:
            //ID    FirstName   LastName    Address     City

       //Now we want to add a PhoneNo column after the LastName column. For this we use the                               
             //SetOrdinal function, as iin:
        dt.Columns.Add("PhoneNo").SetOrdinal(3);

            //3 is the position number and positions start from 0.`enter code here`

               //Now the table structure will be:
              // ID      FirstName   LastName    PhoneNo    Address     City

For a more simple solution (not sure if the most optimal), you can simply nest Parallel.ForEach inside a Task - as such

var options = new ParallelOptions { MaxDegreeOfParallelism = 5 }
Task.Run(() =>
{
    Parallel.ForEach(myCollection, options, item =>
    {
        DoWork(item);
    }
}

The ParallelOptions will do the throttlering for you, out of the box.

I am using it in a real world scenario to run a very long operations in the background. These operations are called via HTTP and it was designed not to block the HTTP call while the long operation is running.

1. Calling HTTP for long background operation.
2. Operation starts at the background.
3. User gets status ID which can be used to check the status using another HTTP call.
4. The background operation update its status.

That way, the CI/CD call does not timeout because of long HTTP operation, rather it loops the status every x seconds without blocking the process

some_instance.attributes

Source: blog

function Index($index) {
    $Count = count($YOUR_ARRAY);
    if ($index <= $Count) {
        $Keys = array_keys($YOUR_ARRAY);
        $Value = array_values($YOUR_ARRAY);
        return $Keys[$index] . ' = ' . $Value[$index];
    } else {
        return "Out of the ring";
    }
}

echo 'Index : ' . Index(0);

Replace the ( $YOUR_ARRAY )

In a maven project create a file src/main/resources/application.yml with the following content:

spring.profiles: integration
# use local or embedded mongodb at localhost:27017
---
spring.profiles: production
spring.data.mongodb.uri: mongodb://<user>:<passwd>@<host>:<port>/<dbname>

Spring Boot will automatically use this file to configure your application. Then you can start your spring boot application either with the integration profile (and use your local MongoDB)

java -jar -Dspring.profiles.active=integration your-app.jar

or with the production profile (and use your production MongoDB)

java -jar -Dspring.profiles.active=production your-app.jar

The simplest way is

>>> a = range(1, 10)
>>> for x in [2, 3, 7]:
...  a.remove(x)
... 
>>> a
[1, 4, 5, 6, 8, 9]

One possible problem here is that each time you call remove(), all the items are shuffled down the list to fill the hole. So if a grows very large this will end up being quite slow.

This way builds a brand new list. The advantage is that we avoid all the shuffling of the first approach

>>> removeset = set([2, 3, 7])
>>> a = [x for x in a if x not in removeset]

If you want to modify a in place, just one small change is required

>>> removeset = set([2, 3, 7])
>>> a[:] = [x for x in a if x not in removeset]

You can use this jsFiddle

And HTML:

<div id="previewBox">
    <button id="closeButton">Close</button>
<a class="fragment" href="google.com">
    <div>
    <img src ="http://placehold.it/116x116" alt="some description"/> 
    <h3>the title will go here</h3>
        <h4> www.myurlwill.com </h4>
    <p class="text">
        this is a short description yada yada peanuts etc this is a short description yada yada peanuts etc this is a short description yada yada peanuts etc this is a short description yada yada peanuts etcthis is a short description yada yada peanuts etc 
    </p>
</div>
</a>
</div>

With JS (jquery required):

$(document).ready(function() {
    $('#closeButton').on('click', function(e) { 
        $('#previewBox').remove(); 
    });
});

you can use indexing if your enumerable type is string like below

((string[])MyEnumerableStringList)[0]

To securely pass the password in a script (i.e. prevent it from showing up with ps auxf or logs) you can do it with the -K- flag (read config from stdin) and a heredoc:

curl --url url -K- <<< "--user user:password"

In order to count the number of keywords in a dictionary:

def dict_finder(dict_finders):
    x=input("Enter the thing you want to find: ")
    if x in dict_finders:
        print("Element found")
    else:
        print("Nothing found:")

I had the same issue, and the solution is very simple, just change to git bash from cmd or other windows command line tools. Windows sometimes does not work well with git npm dependencies.

Aside from using floats, as others have suggested, you can also rely on a framework such as Bootstrap where you can use the "horizontal-form" class to have the label and input on the same line.

If you're unfamiliar with Bootstrap, you would need to include:

• the link to the Bootstrap CSS (the top link where it says < -- Latest compiled and minified CSS -- >), in the head, as well as add some divs:
• div class="form-group"
• div class="col-..."
• along with class="col-sm-2 control-label" in each label, as Bootstrap shows, which I included below.
• I also reformatted your button so it's Bootstrap compliant.
• and added a legend, to your form box, since you were using a fieldset.

It's very straight forward and you wouldn't have to mess with floats or a ton of CSS for formatting, as you listed above.

  <div id="form">
    <div class="row">
      <form action="" method="post" name="registration" class="register form-horizontal">
        <fieldset>
        <legend>Address Form</legend>

      <div class="form-group">
        <label for="Student" class="col-sm-2 control-label">Name:</label>
          <div class="col-sm-6">
            <input name="Student" class="form-control">
          </div>
      </div>

      <div class="form-group">
        <label for="Matric_no" class="col-sm-2 control-label">Matric number: </label>
          <div class="col-sm-6">
            <input name="Matric_no" class="form-control">
          </div>
      </div>

      <div class="form-group">
        <label for="Email" class="col-sm-2 control-label">Email: </label>
          <div class="col-sm-6">
            <input name="Email" class="form-control">
          </div>
      </div>

      <div class="form-group">
        <label for="Username" class="col-sm-2 control-label">Username: </label>
          <div class="col-sm-6">
            <input name="Username" class="form-control">
          </div>
      </div>

      <div class="form-group">
        <label for="Password" class="col-sm-2 control-label">Password: </label>
          <div class="col-sm-6">
            <input name="Password" type="password" class="form-control">
          </div>
      </div>

      <div>
        <button class="btn btn-info" name="regbutton" value="Register">Submit</button>
      </div>

      </fieldset>
    </form>
    </div>
  </div>
</div>

This seems to work for me:

SELECT FORMAT(@mins / 60 * 100 + @mins % 60, '#:0#')

You can use this code...

public class Main {

    public static void main(String args[]) {
        String[] names = {"First", "Second", "Third"};//You Can Add More Names
        double[] amount = {20.0, 30.0, 40.0};//You Can Add More Amount
        List<Customer> customers = new ArrayList<Customer>();
        int i = 0;
        while (i < names.length) {
            customers.add(new Customer(names[i], amount[i]));
            i++;
        }
    }
}

You can use @Query(value = "{call PROC_TEST()}", nativeQuery = true) in your repository. This worked for me.

Attention: use '{' and '}' or else it will not work.

Methods and variables that are not declared as static are known as instance methods and instance variables. To refer to instance methods and variables, you must instantiate the class first means you should create an object of that class first.For static you don't need to instantiate the class u can access the methods and variables with the class name using period sign which is in (.)

for example:

Person.staticMethod();           //accessing static method.

for non-static method you must instantiate the class.

Person person1 = new Person();   //instantiating
person1.nonStaticMethod();       //accessing non-static method.

Create a new folder and run git init in it.

Then try git remote add origin <your-repository-url>.

Copy all the files in your project folder to the new folder, except the .git folder (it may be invisible).

Then you can push your code by doing:
git add --all; or git add -A;
git commit -m "YOUR MESSAGE";
git push -u origin master.

I think it will work!

Making these 2 communicate

=IF(OR(AND(MID(K27,6,1)="N",(MID(K27,6,1)="C"),(MID(K27,6,1)="H"),(MID(K27,6,1)="I"),(MID(K27,6,1)="B"),(MID(K27,6,1)="F"),(MID(K27,6,1)="L"),(MID(K27,6,1)="M"),(MID(K27,6,1)="P"),(MID(K27,6,1)="R"),(MID(K27,6,1)="P"),ISTEXT(G27)="61"),AND(RIGHT(K27,2)=G27)),"Good","Review")

=IF(AND(RIGHT(K27,2)=G27),"Good","Review")

Using the map() and reduce() built-in functions

def file_to_list(file):
     #stuff to parse file to a list
     return list

files = [...list of files...]

L = map(file_to_list, files)

flat_L = reduce(lambda x,y:x+y, L)

Minimal "for looping" and elegant coding pattern :)

If you want to show all collections from the MongoDB shell (command line), use the shell helper,

show collections

that shows all collections for the current database. If you want to get all collection lists from your application then you can use the MongoDB database method

db.getCollectionNames()

For more information about the MongoDB shell helper, you can see mongo Shell Quick Reference.

I've found it works this way too:

watch: {
    "details.position"(newValue, oldValue) {
        console.log("changes here")
    }
},
data() {
    return {
      details: {
          position: ""
      }
    }
}

In powershell:

function Recode($InCharset, $InFile, $OutCharset, $OutFile)  {
    # Read input file in the source encoding
    $Encoding = [System.Text.Encoding]::GetEncoding($InCharset)
    $Text = [System.IO.File]::ReadAllText($InFile, $Encoding)
    
    # Write output file in the destination encoding
    $Encoding = [System.Text.Encoding]::GetEncoding($OutCharset)    
    [System.IO.File]::WriteAllText($OutFile, $Text, $Encoding)
}

Recode Windows-1252 "$pwd\in.txt" utf8 "$pwd\out.txt" 

For a list of supported encoding names:

https://docs.microsoft.com/en-us/dotnet/api/system.text.encoding

private InputMethodManager imm;

...


editText.setOnTouchListener(new View.OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        v.onTouchEvent(event);
        hideDefaultKeyboard(v);
        return true;
    }
});

private void hideDefaultKeyboard(View et) {
  getMethodManager().hideSoftInputFromWindow(et.getWindowToken(), 0);
}

private InputMethodManager getMethodManager() {
        if (this.imm == null) {
            this.imm = (InputMethodManager)  getContext().getSystemService(android.content.Context.INPUT_METHOD_SERVICE);
        }
  return this.imm;
}

You have declared your Class as:

@Table( name = "foobar" )
public class FooBar {

You need to write the Class Name for the search.
from FooBar

time.monotonic() (basically your computer's uptime in seconds) is guarranteed to not misbehave when your computer's clock is adjusted (such as when transitioning to/from daylight saving time).

>>> import time
>>>
>>> time.monotonic()
452782.067158593
>>>
>>> a = time.monotonic()
>>> time.sleep(1)
>>> b = time.monotonic()
>>> print(b-a)
1.001658110995777

Old post but I figured i could contribute anyway.

A script is arguably not necessary and with some tolerance to wild cards could be carried out from the command line.

1. wild anywhere matching. Lets remove any occurrence of sub "folder"

   $ rm -rf ~/*/folder/*
   

2. Shell iterated. Lets remove the specific pre and post folders with one line

   $ rm -rf ~/foo{1,2,3}/folder/{ab,cd,ef}
   

3. Shell iterated + var (BASH tested).

   $ var=bar rm -rf ~/foo{1,2,3}/${var}/{ab,cd,ef}
   

If you are directly working with matplotlib's pyplot (plt) and if you are more familiar with the new-style format string, you can try this:

from matplotlib.ticker import StrMethodFormatter
plt.gca().yaxis.set_major_formatter(StrMethodFormatter('{x:,.0f}')) # No decimal places
plt.gca().yaxis.set_major_formatter(StrMethodFormatter('{x:,.2f}')) # 2 decimal places

From the documentation:

class matplotlib.ticker.StrMethodFormatter(fmt)

Use a new-style format string (as used by str.format()) to format the tick.

The field used for the value must be labeled x and the field used for the position must be labeled pos.

Assuming that both of those are Strings (otherwise they'd already be valid Dates), here's one way:

package cruft;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DateValidator
{
    private static final DateFormat DEFAULT_FORMATTER;

    static
    {
        DEFAULT_FORMATTER = new SimpleDateFormat("dd-MM-yyyy");
        DEFAULT_FORMATTER.setLenient(false);
    }

    public static void main(String[] args)
    {
        for (String dateString : args)
        {
            try
            {
                System.out.println("arg: " + dateString + " date: " + convertDateString(dateString));
            }
            catch (ParseException e)
            {
                System.out.println("could not parse " + dateString);
            }
        }
    }

    public static Date convertDateString(String dateString) throws ParseException
    {
        return DEFAULT_FORMATTER.parse(dateString);
    }
}

Here's the output I get:

java cruft.DateValidator 32-11-2010 31-02-2010 04-01-2011
could not parse 32-11-2010
could not parse 31-02-2010
arg: 04-01-2011 date: Tue Jan 04 00:00:00 EST 2011

Process finished with exit code 0

As you can see, it does handle both of your cases nicely.

Per https://developer.mozilla.org/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding and http://en.wikipedia.org/wiki/Basic_access_authentication , here is how to do Basic auth with a header instead of putting the username and password in the URL. Note that this still doesn't hide the username or password from anyone with access to the network or this JS code (e.g. a user executing it in a browser):

$.ajax({
  type: 'POST',
  url: http://theappurl.com/api/v1/method/,
  data: {},
  crossDomain: true,
  beforeSend: function(xhr) {
    xhr.setRequestHeader('Authorization', 'Basic ' + btoa(unescape(encodeURIComponent(YOUR_USERNAME + ':' + YOUR_PASSWORD))))
  }
});

We can use the CONCAT SQL function.

PreparedStatement pstmt = con.prepareStatement(
      "SELECT * FROM analysis WHERE notes like CONCAT( '%',?,'%')";
pstmt.setString(1, notes);
ResultSet rs = pstmt.executeQuery();

This works perfectly for my case.

'a' in x

and a quick search reveals some nice information about it: http://docs.python.org/3/tutorial/datastructures.html#dictionaries

Following works out for me.

    #!/usr/bin/env python
    a = [{ 'main_color': 'red', 'second_color':'blue'},
    { 'main_color': 'yellow', 'second_color':'green'},
    { 'main_color': 'yellow', 'second_color':'blue'}]

    found_event = next(
            filter(
                lambda x: x['main_color'] == 'red',
                a
            ),
      #return this dict when not found
            dict(
                name='red',
                value='{}'
            )
        )

    if found_event:
        print(found_event)

    $python  /tmp/x
    {'main_color': 'red', 'second_color': 'blue'}

After I searched a lot to convert ISO8601 to date I suddenly found a java class that is ISO8601Util.java and this was part of com.google.gson.internal.bind.util. So you can use it to convert dates.

ISO8601Utils.parse("2010-01-01T12:00:00Z" , ParsePosition(0))

and you can simply use this kotlin extension function

fun String.getDateFromString() : Date? = ISO8601Utils.parse(this , 
ParsePosition(0))

I recommend you to use JSON.NET. it is an open source library to serialize and deserialize your c# objects into json and Json objects into .net objects ...

Serialization Example:

Product product = new Product();
product.Name = "Apple";
product.Expiry = new DateTime(2008, 12, 28);
product.Price = 3.99M;
product.Sizes = new string[] { "Small", "Medium", "Large" };

string json = JsonConvert.SerializeObject(product);
//{
//  "Name": "Apple",
//  "Expiry": new Date(1230422400000),
//  "Price": 3.99,
//  "Sizes": [
//    "Small",
//    "Medium",
//    "Large"
//  ]
//}

Product deserializedProduct = JsonConvert.DeserializeObject<Product>(json);

<div ng-click="methodName(event)"></div>

IN controller use

$scope.methodName = function(event) { 
    event.stopPropagation();
}

try This Code

var check = function(evt){_x000D_
_x000D_
var data = document.getElementById('num').value;_x000D_
if((evt.charCode>= 48 && evt.charCode <= 57) || evt.charCode== 46 ||evt.charCode == 0){_x000D_
if(data.indexOf('.') > -1){_x000D_
 if(evt.charCode== 46)_x000D_
  evt.preventDefault();_x000D_
}_x000D_
}else_x000D_
evt.preventDefault();_x000D_
};_x000D_
_x000D_
document.getElementById('num').addEventListener('keypress',check);

<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
<title>Page Title</title>_x000D_
</head>_x000D_
<body>_x000D_
<input type="text" id="num" value="" />_x000D_
_x000D_
_x000D_
_x000D_
</body>_x000D_
</html>

Here is what worked for me. It applies the same height to each column despite their parent div.

$(document).ready(function () {    
    var $sameHeightDivs = $('.column');
    var maxHeight = 0;
    $sameHeightDivs.each(function() {
        maxHeight = Math.max(maxHeight, $(this).outerHeight());
    });
    $sameHeightDivs.css({ height: maxHeight + 'px' });
});

Source

Additionally for what was said, if you want integer powers of two, then 1 << x (or 1L << x) is a faster way to calculate 2^x than Math.pow(2,x) or a multiplication loop, and is guaranteed to give you an int (or long) result.

It only uses the lowest 5 (or 6) bits of x (i.e. x & 31 (or x & 63)), though, shifting between 0 and 31 (or 63) bits.

It'll have the same behavior as the underlying recv libc call see the man page for an official description of behavior (or read a more general description of the sockets api).

It's exactly what the error says. You didn't create any RestTemplate bean, so it can't autowire any. If you need a RestTemplate you'll have to provide one. For example, add the following to TestMicroServiceApplication.java:

@Bean
public RestTemplate restTemplate() {
    return new RestTemplate();
}

Note, in earlier versions of the Spring cloud starter for Eureka, a RestTemplate bean was created for you, but this is no longer true.

import java.util.ArrayList;
import java.util.List;

public class Node<T> {
    private List<Node<T>> children = new ArrayList<Node<T>>();
    private Node<T> parent = null;
    private T data = null;

    public Node(T data) {
        this.data = data;
    }

    public Node(T data, Node<T> parent) {
        this.data = data;
        this.parent = parent;
    }

    public List<Node<T>> getChildren() {
        return children;
    }

    public void setParent(Node<T> parent) {
        parent.addChild(this);
        this.parent = parent;
    }

    public void addChild(T data) {
        Node<T> child = new Node<T>(data);
        child.setParent(this);
        this.children.add(child);
    }

    public void addChild(Node<T> child) {
        child.setParent(this);
        this.children.add(child);
    }

    public T getData() {
        return this.data;
    }

    public void setData(T data) {
        this.data = data;
    }

    public boolean isRoot() {
        return (this.parent == null);
    }

    public boolean isLeaf() {
        return this.children.size == 0;
    }

    public void removeParent() {
        this.parent = null;
    }
}

Example:

import java.util.List;

Node<String> parentNode = new Node<String>("Parent"); 
Node<String> childNode1 = new Node<String>("Child 1", parentNode);
Node<String> childNode2 = new Node<String>("Child 2");     

childNode2.setParent(parentNode); 

Node<String> grandchildNode = new Node<String>("Grandchild of parentNode. Child of childNode1", childNode1); 
List<Node<String>> childrenNodes = parentNode.getChildren();

One thing to note - as I had exactly this problem today, depending on your HTML jQuery may or may not parse it that well. jQuery wouldn't parse my HTML into a correct DOM - on smaller XML compliant files it worked fine, but the HTML I had (that would render in a page) wouldn't parse when passed back to an Ajax callback.

In the end I simply searched manually in the string for the tag I wanted, not ideal but did work.

I've added yet another JavaScript serializer repo to GitHub.

Rather than take the approach of serializing and deserializing JavaScript objects to an internal format the approach here is to serialize JavaScript objects out to native JavaScript. This has the advantage that the format is totally agnostic from the serializer, and the object can be recreated simply by calling eval().

https://github.com/iconico/JavaScript-Serializer

You will find de log4j.properties in solr/examples/resources.

If you don't find the file, i put it here:

#  Logging level
solr.log=logs/
log4j.rootLogger=INFO, file, CONSOLE

log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender

log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%-4r [%t] %-5p %c %x \u2013 %m%n

#- size rotation with log cleanup.
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.MaxFileSize=4MB
log4j.appender.file.MaxBackupIndex=9

#- File to log to and log format
log4j.appender.file.File=${solr.log}/solr.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%-5p - %d{yyyy-MM-dd HH:mm:ss.SSS}; %C; %m\n

log4j.logger.org.apache.zookeeper=WARN
log4j.logger.org.apache.hadoop=WARN

# set to INFO to enable infostream log messages
log4j.logger.org.apache.solr.update.LoggingInfoStream=OFF

Regards

This worked for me instead of startsWith : Build.FINGERPRINT.contains("generic")

For more check this link: https://gist.github.com/espinchi/168abf054425893d86d1

Straight out from the documentation:

Suppose the website example.com would like to send notifications to its users via a Telegram bot. Here's what they could do to enable notifications for a user with the ID 123.

1. Create a bot with a suitable username, e.g. @ExampleComBot
2. Set up a webhook for incoming messages
3. Generate a random string of a sufficient length, e.g. $memcache_key = "vCH1vGWJxfSeofSAs0K5PA"
4. Put the value 123 with the key $memcache_key into Memcache for 3600 seconds (one hour)
5. Show our user the button https://telegram.me/ExampleComBot?start=vCH1vGWJxfSeofSAs0K5PA
6. Configure the webhook processor to query Memcached with the parameter that is passed in incoming messages beginning with /start. If the key exists, record the chat_id passed to the webhook as telegram_chat_id for the user 123. Remove the key from Memcache.
7. Now when we want to send a notification to the user 123, check if they have the field telegram_chat_id. If yes, use the sendMessage method in the Bot API to send them a message in Telegram.

1. Open your powershell as admin
2. Enter "Set-ExecutionPolicy RemoteSigned -Force
3. Run "gpedit.msc" and go to >Administrative Templates>Windows Components>Windows Powershell
4. Look for "Activate scripts execution" and set it on "Activated"
5. Set execution directive to "Allow All"
6. Apply
7. Refresh your env

Your "bad" output is UTF-8 displayed as CP1252.

On Windows, many editors assume the default ANSI encoding (CP1252 on US Windows) instead of UTF-8 if there is no byte order mark (BOM) character at the start of the file. While a BOM is meaningless to the UTF-8 encoding, its UTF-8-encoded presence serves as a signature for some programs. For example, Microsoft Office's Excel requires it even on non-Windows OSes. Try:

df.to_csv('file.csv',encoding='utf-8-sig')

That encoder will add the BOM.

subscript

extension Array where Element : Equatable {
  public subscript(safe bounds: Range<Int>) -> ArraySlice<Element> {
    if bounds.lowerBound > count { return [] }
    let lower = Swift.max(0, bounds.lowerBound)
    let upper = Swift.max(0, Swift.min(count, bounds.upperBound))
    return self[lower..<upper]
  }
  
  public subscript(safe lower: Int?, _ upper: Int?) -> ArraySlice<Element> {
    let lower = lower ?? 0
    let upper = upper ?? count
    if lower > upper { return [] }
    return self[safe: lower..<upper]
  }
}

returns a copy of this range clamped to the given limiting range.

var arr = [1, 2, 3]
    
arr[safe: 0..<1]    // returns [1]  assert(arr[safe: 0..<1] == [1])
arr[safe: 2..<100]  // returns [3]  assert(arr[safe: 2..<100] == [3])
arr[safe: -100..<0] // returns []   assert(arr[safe: -100..<0] == [])

arr[safe: 0, 1]     // returns [1]  assert(arr[safe: 0, 1] == [1])
arr[safe: 2, 100]   // returns [3]  assert(arr[safe: 2, 100] == [3])
arr[safe: -100, 0]  // returns []   assert(arr[safe: -100, 0] == [])

This is from the Docker documentation itself, might be of help, simple and plain:

"The host directory is, by its nature, host-dependent. For this reason, you can’t mount a host directory from Dockerfile, the VOLUME instruction does not support passing a host-dir, because built images should be portable. A host directory wouldn’t be available on all potential hosts.".

As you are aware, everything passed as email message has to be textualized.

• You must create an email with a multipart/mime message.
• If you're adding a physical image, the image must be base 64 encoded and assigned a Content-ID (cid). If it's an URL, then the <img /> tag is sufficient (the url of the image must be linked to a Source ID).

A Typical email example will look like this:

From: foo1atbar.net
To: foo2atbar.net
Subject: A simple example
Mime-Version: 1.0
Content-Type: multipart/related; boundary="boundary-example"; type="text/html"

--boundary-example
Content-Type: text/html; charset="US-ASCII"

... text of the HTML document, which might contain a URI
referencing a resource in another body part, for example
through a statement such as:
<IMG SRC="cid:foo4atfoo1atbar.net" ALT="IETF logo">

--boundary-example
Content-Location: CID:somethingatelse ; this header is disregarded
Content-ID: <foo4atfoo1atbar.net>
Content-Type: IMAGE/GIF
Content-Transfer-Encoding: BASE64

R0lGODlhGAGgAPEAAP/////ZRaCgoAAAACH+PUNv
cHlyaWdodCAoQykgMTk5LiBVbmF1dGhvcml6ZWQgZHV
wbGljYXRpb24gcHJvaGliaXRlZC4A etc...

--boundary-example--

As you can see, the Content-ID: <foo4atfoo1atbar.net> ID is matched to the <IMG> at SRC="cid:foo4atfoo1atbar.net". That way, the client browser will render your image as a content and not as an attachement.

Hope this helps.

to_char(mydate, 'MONTH') will do the job.

This happens when the Server key and Sender ID parameters HTTP request do not match each other. Basically both server ID and Server key must belong to the same firebase project. Please refer to the below image. In case of mixing these parameters from deferent Firebase projects will cause error MismatchSenderId

In case you're inside a Sub of Function and you want to exit it, you can use :

Exit Sub

or

Exit Function 

my problem (git on macOS) was solved by using sudo git instead of just git in all add and commit commands

David Heffernan explained the issue in his answer, and I wrote the improved code. See below.

A generic function

We can write a useful variadic function to concatenate any number of strings:

#include <stdlib.h>       // calloc
#include <stdarg.h>       // va_*
#include <string.h>       // strlen, strcpy

char* concat(int count, ...)
{
    va_list ap;
    int i;

    // Find required length to store merged string
    int len = 1; // room for NULL
    va_start(ap, count);
    for(i=0 ; i<count ; i++)
        len += strlen(va_arg(ap, char*));
    va_end(ap);

    // Allocate memory to concat strings
    char *merged = calloc(sizeof(char),len);
    int null_pos = 0;

    // Actually concatenate strings
    va_start(ap, count);
    for(i=0 ; i<count ; i++)
    {
        char *s = va_arg(ap, char*);
        strcpy(merged+null_pos, s);
        null_pos += strlen(s);
    }
    va_end(ap);

    return merged;
}

Usage

#include <stdio.h>        // printf

void println(char *line)
{
    printf("%s\n", line);
}

int main(int argc, char* argv[])
{
    char *str;

    str = concat(0);             println(str); free(str);
    str = concat(1,"a");         println(str); free(str);
    str = concat(2,"a","b");     println(str); free(str);
    str = concat(3,"a","b","c"); println(str); free(str);

    return 0;
}

Output:

  // Empty line
a
ab
abc

Clean-up

Note that you should free up the allocated memory when it becomes unneeded to avoid memory leaks:

char *str = concat(2,"a","b");
println(str);
free(str);

You want the :checkbox:checked selector and map to create an array of the values:

var checkedValues = $('input:checkbox:checked').map(function() {
    return this.value;
}).get();

If your checkboxes have a shared class it would be faster to use that instead, eg. $('.mycheckboxes:checked'), or for a common name $('input[name="Foo"]:checked')

- Update -

If you don't need IE support then you can now make the map() call more succinct by using an arrow function:

var checkedValues = $('input:checkbox:checked').map((i, el) => el.value).get();

It would be beneficial to verify the form's data before sending it via POST. You should create a JavaScript function to check the form for errors and then send the form. This would prevent the data from being sent over and over again, possibly slowing the browser and using transfer volume on the server.

Edit:

If security is a concern, performing an AJAX request to verify the data would be the best way. The response from the AJAX request would determine whether the form should be submitted.

Wrap the multiple statements in a BEGIN END block to make them one statement and add a slash after the END; clause.

BEGIN
  insert into books
  (id, title, author)
  values
  (books_seq.nextval, 'The Bite in the Apple', 'Chrisann Brennan');

  insert into books
  (id, title, author)
  values
  (books_seq.nextval, 'The Restaurant at the End of the Universe', 'Douglas Adams');
END;
/

That way, it is just ctrl-a then ctrl-enter and it goes.

Note the guidelines for performing work on a UI thread, collected on my blog:

• Don't block the UI thread for more than 50ms at a time.
• You can schedule ~100 continuations on the UI thread per second; 1000 is too much.

There are two techniques you should use:

1) Use ConfigureAwait(false) when you can.

E.g., await MyAsync().ConfigureAwait(false); instead of await MyAsync();.

ConfigureAwait(false) tells the await that you do not need to resume on the current context (in this case, "on the current context" means "on the UI thread"). However, for the rest of that async method (after the ConfigureAwait), you cannot do anything that assumes you're in the current context (e.g., update UI elements).

For more information, see my MSDN article Best Practices in Asynchronous Programming.

2) Use Task.Run to call CPU-bound methods.

You should use Task.Run, but not within any code you want to be reusable (i.e., library code). So you use Task.Run to call the method, not as part of the implementation of the method.

So purely CPU-bound work would look like this:

// Documentation: This method is CPU-bound.
void DoWork();

Which you would call using Task.Run:

await Task.Run(() => DoWork());

Methods that are a mixture of CPU-bound and I/O-bound should have an Async signature with documentation pointing out their CPU-bound nature:

// Documentation: This method is CPU-bound.
Task DoWorkAsync();

Which you would also call using Task.Run (since it is partially CPU-bound):

await Task.Run(() => DoWorkAsync());

First you need to install tensorflow-gpu, because this package is responsible for gpu computations. Also remember to run your code with environment variable CUDA_VISIBLE_DEVICES = 0 (or if you have multiple gpus, put their indices with comma). There might be some issues related to using gpu. if your tensorflow does not use gpu anyway, try this

If you use HashSet instead of List for listofGenres you can do:

var genres = new HashSet<Genre>() { "action", "comedy" };   
var movies = _db.Movies.Where(p => genres.Overlaps(p.Genres));

Make sure you have imported HttpClientModule instead of adding HttpClient direcly to the list of providers.

See https://angular.io/guide/http#setup for more info.

The HttpClientModule actually provides HttpClient for you. See https://angular.io/api/common/http/HttpClientModule:

Code sample:

import { HttpClientModule, /* other http imports */ } from "@angular/common/http";

@NgModule({
    // ...other declarations, providers, entryComponents, etc.
    imports: [
        HttpClientModule,
        // ...some other imports
    ],
})
export class AppModule { }

If you have many columns and want to print all but not the three cloumns in the last, then this might help

awk '{ $NF="";$(NF-1)="";$(NF-2)="" ; print $0 }'

There are two options. The first (and better) one is using the Fetch as Google option in Webmaster Tools that Mike Flynn commented about. Here are detailed instructions:

1. Go to: https://www.google.com/webmasters/tools/ and log in
2. If you haven't already, add and verify the site with the "Add a Site" button
3. Click on the site name for the one you want to manage
4. Click Crawl -> Fetch as Google
5. Optional: if you want to do a specific page only, type in the URL
6. Click Fetch
7. Click Submit to Index
8. Select either "URL" or "URL and its direct links"
9. Click OK and you're done.

With the option above, as long as every page can be reached from some link on the initial page or a page that it links to, Google should recrawl the whole thing. If you want to explicitly tell it a list of pages to crawl on the domain, you can follow the directions to submit a sitemap.

Your second (and generally slower) option is, as seanbreeden pointed out, submitting here: http://www.google.com/addurl/

Update 2019:

1. Login to - Google Search Console
2. Add a site and verify it with the available methods.
3. After verification from the console, click on URL Inspection.
4. In the Search bar on top, enter your website URL or custom URLs for inspection and enter.
5. After Inspection, it'll show an option to Request Indexing
6. Click on it and GoogleBot will add your website in a Queue for crawling.

I'd say:

 <a href="#"id="buttonOne">
            <div id="linkedinB">
                <img src="img/linkedinB.png" width="40" height="40">
            </div>
      </div> 

However, it will still be a link. If you want to change your link into a button, you should rename the #buttonone to #buttonone a { your css here }.

@opsb's answers is neat, but the center point is not accurate, moreover, as @Jithin noted, if the angle is 360, then nothing is drawn at all.

@Jithin fixed the 360 issue, but if you selected less than 360 degree, then you'll get a line closing the arc loop, which is not required.

I fixed that, and added some animation in the code below:

function myArc(cx, cy, radius, max){       _x000D_
       var circle = document.getElementById("arc");_x000D_
        var e = circle.getAttribute("d");_x000D_
        var d = " M "+ (cx + radius) + " " + cy;_x000D_
        var angle=0;_x000D_
        window.timer = window.setInterval(_x000D_
        function() {_x000D_
            var radians= angle * (Math.PI / 180);  // convert degree to radians_x000D_
            var x = cx + Math.cos(radians) * radius;  _x000D_
            var y = cy + Math.sin(radians) * radius;_x000D_
           _x000D_
            d += " L "+x + " " + y;_x000D_
            circle.setAttribute("d", d)_x000D_
            if(angle==max)window.clearInterval(window.timer);_x000D_
            angle++;_x000D_
        }_x000D_
      ,5)_x000D_
 }     _x000D_
_x000D_
  myArc(110, 110, 100, 360);_x000D_
    

<svg xmlns="http://www.w3.org/2000/svg" style="width:220; height:220;"> _x000D_
    <path d="" id="arc" fill="none" stroke="red" stroke-width="2" />_x000D_
</svg>

i had got the same error. Actually i tried to override the flutter Old SDK Package with new Updated Package. so that error occurred.

i opened flutter sdk directory with VS Code and cleaned the project

use this code in VSCode cmd

git clean -dxf

then use git pull

This:

This is (.*?) sentence

works in javascript.

In the single-threaded,asynchronous,promise-oriented,reactive-trending world of javascript async/await is the imperative-style programmer's best friend:

(async()=>{

    const store = of("someValue");
    function getValueFromObservable () {
        return store.toPromise();
    }
    console.log(await getValueFromObservable())

})();

And in case store is a sequence of multiple values:

  const aiFrom = require('ix/asynciterable').from;
  (async function() {

     const store = from(["someValue","someOtherValue"]);
     function getValuesFromObservable () {
        return aiFrom(store);
     }
     for await (let num of getValuesFromObservable()) {
       console.log(num);
     }
  })();

this turns the recursion in to a loop:

def checkNextID(ID):
    global numOfRuns, curRes, lastResult
    while ID < lastResult:
        try:
            numOfRuns += 1
            if numOfRuns % 10 == 0:
                time.sleep(3) # sleep every 10 iterations
            if isValid(ID + 8):
                parseHTML(curRes)
                ID = ID + 8
            elif isValid(ID + 18):
                parseHTML(curRes)
                ID = ID + 18
            elif isValid(ID + 7):
                parseHTML(curRes)
                ID = ID + 7
            elif isValid(ID + 17):
                parseHTML(curRes)
                ID = ID + 17
            elif isValid(ID+6):
                parseHTML(curRes)
                ID = ID + 6
            elif isValid(ID + 16):
                parseHTML(curRes)
                ID = ID + 16
            else:
                ID = ID + 1
        except Exception, e:
            print "somethin went wrong: " + str(e)

Implements is used for Interfaces and extends is used to extend a class.

To make it more clearer in easier terms,an interface is like it sound - an interface - a model, that you need to apply,follow, along with your ideas to it.

Extend is used for classes,here,you are extending something that already exists by adding more functionality to it.

A few more notes:

an interface can extend another interface.

And when you need to choose between implementing an interface or extending a class for a particular scenario, go for implementing an interface. Because a class can implement multiple interfaces but extend only one class.

If your goal is to deploy your Spring Boot application to AWS, Boxfuse gives you a very easy solution.

All you need to do is:

boxfuse run my-spring-boot-app-1.0.jar -env=prod

This will:

• Fuse a minimal OS image tailor-made for your app (about 100x smaller than a typical Linux distribution)
• Push it to a secure online repository
• Convert it into an AMI in about 30 seconds
• Create and configure a new Elastic IP or ELB
• Assign a new domain name to it
• Launch one or more instances based on your new AMI

All images are generated in seconds and are immutable. They can be run unchanged on VirtualBox (dev) and AWS (test & prod).

All updates are performed as zero-downtime blue/green deployments and you can also enable auto-scaling with just one command.

Boxfuse also understands your Spring Boot config will automatically configure security groups and ELB health checks based upon your application.properties.

Here is a tutorial to help you get started: https://boxfuse.com/getstarted/springboot

Disclaimer: I am the founder and CEO of Boxfuse

I have had reasonable success with a tool named (frustratingly) "JD: Java Decompiler".

I have found it better than most decompilers when dealing with classes compiled for Java 5 and higher. Unfortunately, it can still have some hiccups where JAD would normally succeed.

Well, it's clearly not a number since it has dashes in it. The error message and the two comments tell you that it is a factor but the commentators are apparently waiting and letting the message sink in. Dirk is suggesting that you do this:

 EPL2011_12$Date2 <- as.Date( as.character(EPL2011_12$Date), "%d-%m-%y")

After that you can do this:

 EPL2011_12FirstHalf <- subset(EPL2011_12, Date2 > as.Date("2012-01-13") )

R date functions assume the format is either "YYYY-MM-DD" or "YYYY/MM/DD". You do need to compare like classes: date to date, or character to character.

I think you're getting confused about what can hold what in JSON.Net.

• A JToken is a generic representation of a JSON value of any kind. It could be a string, object, array, property, etc.
• A JProperty is a single JToken value paired with a name. It can only be added to a JObject, and its value cannot be another JProperty.
• A JObject is a collection of JProperties. It cannot hold any other kind of JToken directly.

In your code, you are attempting to add a JObject (the one containing the "banana" data) to a JProperty ("orange") which already has a value (a JObject containing {"colour":"orange","size":"large"}). As you saw, this will result in an error.

What you really want to do is add a JProperty called "banana" to the JObject which contains the other fruit JProperties. Here is the revised code:

JObject foodJsonObj = JObject.Parse(jsonText);
JObject fruits = foodJsonObj["food"]["fruit"] as JObject;
fruits.Add("banana", JObject.Parse(@"{""colour"":""yellow"",""size"":""medium""}"));

PHP has a method called md5 ;-) Just $password = md5($passToEncrypt);

If you are searching in a SQL u can use a MySQL Method MD5() too....

 SELECT * FROM user WHERE Password='. md5($password) .'

or SELECT * FROM ser WHERE Password=MD5('. $password .')

To insert it u can do it the same way.

>>> x = "Hello World!"
>>> x[2:]
'llo World!'
>>> x[:2]
'He'
>>> x[:-2]
'Hello Worl'
>>> x[-2:]
'd!'
>>> x[2:-2]
'llo Worl'

Python calls this concept "slicing" and it works on more than just strings. Take a look here for a comprehensive introduction.

http://css-tricks.com/snippets/css/css-only-image-preloading/

Technique #1

Load the image on the element's regular state, only shift it away with background position. Then move the background position to display it on hover.

#grass { background: url(images/grass.png) no-repeat -9999px -9999px; }
#grass:hover { background-position: bottom left; }

Technique #2

If the element in question already has a background-image applied and you need to change that image, the above won't work. Typically you would go for a sprite here (a combined background image) and just shift the background position. But if that isn't possible, try this. Apply the background image to another page element that is already in use, but doesn't have a background image.

#random-unsuspecting-element { background: url(images/grass.png) no-repeat -9999px -9999px; }
#grass:hover { background: url(images/grass.png) no-repeat; }

I managed to install php54w according to Simon's suggestion, but then my sites stopped working perhaps because of an incompatibility with php-mysql or some other module. Even frantically restoring the old situation was not amusing: for anyone in my own situation the sequence is:

sudo yum remove php54w
sudo yum remove php54w-common
sudo yum install php-common
sudo yum install php-mysql
sudo yum install php

It would be nice if someone submitted the full procedure to update all the php packet. That was my production server and my heart is still rapidly beating.

Need to use this way I have used this one and it's working fine.

react-native-responsive-screen npm install react-native-responsive-screen --save

Just like I have a device 1080x1920

The vertical number we calculate from height **hp**
height:200
200/1920*100 = 10.41% - height:hp("10.41%")


The Horizontal number we calculate from width **wp**
width:200
200/1080*100 = 18.51% - Width:wp("18.51%")

It's working for all device

The LockedOut property is what you are looking for among all the properties you returned. You are only seeing incomplete output in TechNet. The information is still there. You can isolate that one property using Select-Object

Get-ADUser matt -Properties * | Select-Object LockedOut

LockedOut
---------
False

The link you referenced doesn't contain this information which is obviously misleading. Test the command with your own account and you will see much more information.

Note: Try to avoid -Properties *. While it is great for simple testing it can make queries, especially ones with multiple accounts, unnecessarily slow. So, in this case, since you only need lockedout:

Get-ADUser matt -Properties LockedOut | Select-Object LockedOut

I worked on the code given earlier by Eitan-T and reworked to output to CSV file. Found the results in earlier code weren't always giving correct values as well so i've improved it.

testservers.txt

SOMESERVER
DUDSERVER

results.csv

HOSTNAME    LONGNAME                    IPADDRESS   STATE 
SOMESERVER  SOMESERVER.DOMAIN.SUF       10.1.1.1    UP 
DUDSERVER   UNRESOLVED                  UNRESOLVED  DOWN 

pingtest.bat

 @echo off
    setlocal enabledelayedexpansion
    set OUTPUT_FILE=result.csv

    >nul copy nul %OUTPUT_FILE%
    echo HOSTNAME,LONGNAME,IPADDRESS,STATE >%OUTPUT_FILE%
    for /f %%i in (testservers.txt) do (
        set SERVER_ADDRESS_I=UNRESOLVED
        set SERVER_ADDRESS_L=UNRESOLVED
        for /f "tokens=1,2,3" %%x in ('ping -n 1 %%i ^&^& echo SERVER_IS_UP') do (
        if %%x==Pinging set SERVER_ADDRESS_L=%%y
        if %%x==Pinging set SERVER_ADDRESS_I=%%z
            if %%x==SERVER_IS_UP (set SERVER_STATE=UP) else (set SERVER_STATE=DOWN)
        )
        echo %%i [!SERVER_ADDRESS_L::=!] !SERVER_ADDRESS_I::=! is !SERVER_STATE!
        echo %%i,!SERVER_ADDRESS_L::=!,!SERVER_ADDRESS_I::=!,!SERVER_STATE! >>%OUTPUT_FILE%
    )

System.out.println("hello"+"\n"+"world");

They are the accessors for the public property Name.

You would use them to get/set the value of that property in an instance of Genre.

This worked for me, but I used it as start. powershell outputs, waiting for service to finshing starting a few times then finishes and then a get-service on the remote server shows the service started.

**start**-service -inputobject $(get-service -ComputerName remotePC -Name Spooler)

Note: Checking with cacls for \system32\config\system will ALWAYS fail in WOW64, (for example from %systemroot%\syswow64\cmd.exe / 32 bit Total Commander) so scripts that run in 32bit shell in 64bit system will loop forever... Better would be checking for rights on Prefetch directory:

>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\Prefetch\"

Win XP to 7 tested, however it fails in WinPE as in windows 7 install.wim there is no such dir nor cacls.exe

Also in winPE AND wow64 fails check with openfiles.exe :

OPENFILES > nul

In Windows 7 it will errorlevel with "1" with info that "Target system needs to be 32bit operating system"

Both check will probably also fail in recovery console.

What works in Windows XP - 8 32/64 bit, in WOW64 and in WinPE are: dir creation tests (IF admin didn't carpet bombed Windows directory with permissions for everyone...) and

net session

and

reg add HKLM /F

checks.

Also one more note in some windows XP (and other versions probably too, depending on admin's tinkering) depending on registry entries directly calling bat/cmd from .vbs script will fail with info that bat/cmd files are not associated with anything...

echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
echo UAC.ShellExecute "%~s0", "", "", "runas", 1 >> "%temp%\getadmin.vbs"
cscript "%temp%\getadmin.vbs" //nologo

Calling cmd.exe with parameter of bat/cmd file on the other hand works OK:

echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
echo UAC.ShellExecute "cmd.exe", "/C %~s0", "", "runas", 1 >> "%temp%\getadmin.vbs"
cscript "%temp%\getadmin.vbs" //nologo