To go off of Thapa's answer, you need to cast to the viewcontroller class before using...

   if let wd = self.view.window {
        var vc = wd.rootViewController!
        if(vc is UINavigationController){
            vc = (vc as! UINavigationController).visibleViewController
        }
        if(vc is customViewController){
            var viewController : customViewController = vc as! customViewController

Add this to your xml:

android:listSelector="@android:color/transparent"

And for the problem this may work (I'm not sure and I don't know if there are better solutions):

You could apply a ColorStateList to your TextView.

No, there's no legal and reliable way to do this.

If you find a way, it will be disabled in the future, as it has happened with every method before.

A small change to what Sarfraz posted is:

$array = array(1, 2, 3, 4, 5);
$output = array_slice($array, 0, 1);
print_r ($output);

You can try RESS (RESponsive design + Server side components), see this tutorial:

http://www.lukew.com/ff/entry.asp?1392

You can use git reflog to find the SHA1 of the last commit of the branch. From that point, you can recreate a branch using

git branch branchName <sha1>

Edit: As @seagullJS says, the branch -D command tells you the sha1, so if you haven't closed the terminal yet it becomes real easy. For example this deletes and then immediately restores a branch named master2:

user@MY-PC /C/MyRepo (master)
$ git branch -D master2
Deleted branch master2 (was 130d7ba).    <-- This is the SHA1 we need to restore it!

user@MY-PC /C/MyRepo (master)
$ git branch master2 130d7ba

To acheive dynamic filtering follow the link - https://iamvickyav.medium.com/spring-boot-dynamically-ignore-fields-while-converting-java-object-to-json-e8d642088f55

1. Add the @JsonFilter("Filter name") annotation to the model class.

2. Inside the controller function add the code:-

   SimpleBeanPropertyFilter simpleBeanPropertyFilter =
           SimpleBeanPropertyFilter.serializeAllExcept("id", "dob"); 
   
   FilterProvider filterProvider = new SimpleFilterProvider()
           .addFilter("Filter name", simpleBeanPropertyFilter);
   
   List<User> userList = userService.getAllUsers();
   MappingJacksonValue mappingJacksonValue = new MappingJacksonValue(userList);
   mappingJacksonValue.setFilters(filterProvider);
   
   return mappingJacksonValue;
   

3. make sure the return type is MappingJacksonValue.

If you want to create a CORS service from PHP, you can use this code as the first step in your file that handles the requests:

// Allow from any origin
if(isset($_SERVER["HTTP_ORIGIN"]))
{
    // You can decide if the origin in $_SERVER['HTTP_ORIGIN'] is something you want to allow, or as we do here, just allow all
    header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
}
else
{
    //No HTTP_ORIGIN set, so we allow any. You can disallow if needed here
    header("Access-Control-Allow-Origin: *");
}

header("Access-Control-Allow-Credentials: true");
header("Access-Control-Max-Age: 600");    // cache for 10 minutes

if($_SERVER["REQUEST_METHOD"] == "OPTIONS")
{
    if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_METHOD"]))
        header("Access-Control-Allow-Methods: POST, GET, OPTIONS, DELETE, PUT"); //Make sure you remove those you do not want to support

    if (isset($_SERVER["HTTP_ACCESS_CONTROL_REQUEST_HEADERS"]))
        header("Access-Control-Allow-Headers: {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");

    //Just exit with 200 OK with the above headers for OPTIONS method
    exit(0);
}
//From here, handle the request as it is ok

If you have given same text name for both of your Id and Name properties you can give like document.getElementByName('frmMain')[index] other wise object required error will come.And if you have only one table in your page you can use document.getElementBytag('table')[index].

EDIT:

You can replace the index according to your form, if its first form place 0 for index.

Try:

which( !is.na(p), arr.ind=TRUE)

Which I think is just as informative and probably more useful than the output you specified, But if you really wanted the list version, then this could be used:

> apply(p, 1, function(x) which(!is.na(x)) )
[[1]]
[1] 2 3

[[2]]
[1] 4 7

[[3]]
integer(0)

[[4]]
[1] 5

[[5]]
integer(0)

Or even with smushing together with paste:

lapply(apply(p, 1, function(x) which(!is.na(x)) ) , paste, collapse=", ")

The output from which function the suggested method delivers the row and column of non-zero (TRUE) locations of logical tests:

> which( !is.na(p), arr.ind=TRUE)
     row col
[1,]   1   2
[2,]   1   3
[3,]   2   4
[4,]   4   5
[5,]   2   7

Without the arr.ind parameter set to non-default TRUE, you only get the "vector location" determined using the column major ordering the R has as its convention. R-matrices are just "folded vectors".

> which( !is.na(p) )
[1]  6 11 17 24 32

I was facing same error, But I didn't need to change my password.

Just go to bitbucket->preferences->accounts select your account and check if your password is correct.

In my case, my password was messed up. Just corrected my password and it worked.

Access the Session via the thread's HttpContext:-

HttpContext.Current.Session["loginId"]

If you updated Internet Explorer and began having technical problems, you can use the Compatibility View feature to emulate a previous version of Internet Explorer.

For instructions, see the section below that corresponds with your version. To find your version number, click Help > About Internet Explorer. Internet Explorer 11

To edit the Compatibility View list:

Open the desktop, and then tap or click the Internet Explorer icon on the taskbar.
Tap or click the Tools button (Image), and then tap or click Compatibility View settings.
To remove a website:
Click the website(s) where you would like to turn off Compatibility View, clicking Remove after each one.
To add a website:
Under Add this website, enter the website(s) where you would like to turn on Compatibility View, clicking Add after each one.

just use onkeypress event like below:

<input type="text" name="onlyalphabet" onkeypress="return (event.charCode > 64 && event.charCode < 91) || (event.charCode > 96 && event.charCode < 123)">

For me the issue like this is solved by changing the

minSdkVersion 14

In the build.gladdle file and use the one that is specified in the error message

but the issue was

Manifest merger failed : uses-sdk:minSdkVersion 14 cannot be smaller than version 15 declared in library

So I changed from 14 to 15 in the build.gladdle file and it works

give it a try.

I had this problem too, and it turned out that I was telling zookeeper to connect to the wrong port. Have you verified that zookeeper is actually running on port 2181 on the dev machine?

with EF 6.2 it worked for me

  var query = context.People
               .GroupBy(p => new {p.name})
               .Select(g => new { name = g.Key.name, count = g.Count() });

EL expression:

${requestScope.Error_Message}

There are several implicit objects in JSP EL. See Expression Language under the "Implicit Objects" heading.

In my case, this is what resolved:

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonFormat;
import com.fasterxml.jackson.annotation.JsonProperty;

@JsonFormat(shape = JsonFormat.Shape.OBJECT)
public enum PeriodEnum {

    DAILY(1),
    WEEKLY(2),
    ;

    private final int id;

    PeriodEnum(int id) {
        this.id = id;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return this.name();
    }

    @JsonCreator
    public static PeriodEnum fromJson(@JsonProperty("name") String name) {
        return valueOf(name);
    }
}

Serializes and deserializes the following json:

{
  "id": 2,
  "name": "WEEKLY"
}

I hope it helps!

use the inspect module.

import inspect help(inspect.stack) Help on function stack in module inspect:

stack(context=1) Return a list of records for the stack above the caller's frame.

I find it very helpful indeed.

I think this is much universal:

if (String(a).toLowerCase() == "true") ...

It goes:

String(true) == "true"     //returns true
String(false) == "true"    //returns false
String("true") == "true"   //returns true
String("false") == "true"  //returns false

This works perfectly:

print (soup.find('the tag').text)

When using System.Net.WebRequest your application will negotiate with the server to determine the highest TLS version that both your application and the server support, and use this. You can see more details on how this works here:

http://en.wikipedia.org/wiki/Transport_Layer_Security#TLS_handshake

If the server doesn't support TLS it will fallback to SSL, therefore it could potentially fallback to SSL3. You can see all of the versions that .NET 4.5 supports here:

http://msdn.microsoft.com/en-us/library/system.security.authentication.sslprotocols(v=vs.110).aspx

In order to prevent your application being vulnerable to POODLE, you can disable SSL3 on the machine that your application is running on by following this explanation:

https://serverfault.com/questions/637207/on-iis-how-do-i-patch-the-ssl-3-0-poodle-vulnerability-cve-2014-3566

@sz3, funny enough today I had to do exactly what you were trying to achieve: 'load a specific CSS file only when a user access' a specific page. So I used the solution above.

But I am here to answer your last question: 'where exactly should I put the code. Any ideas?'

You were right including the code into the resolve, but you need to change a bit the format.

Take a look at the code below:

.when('/home', {
  title:'Home - ' + siteName,
  bodyClass: 'home',
  templateUrl: function(params) {
    return 'views/home.html';
  },
  controler: 'homeCtrl',
  resolve: {
    style : function(){
      /* check if already exists first - note ID used on link element*/
      /* could also track within scope object*/
      if( !angular.element('link#mobile').length){
        angular.element('head').append('<link id="home" href="home.css" rel="stylesheet">');
      }
    }
  }
})

I've just tested and it's working fine, it injects the html and it loads my 'home.css' only when I hit the '/home' route.

Full explanation can be found here, but basically resolve: should get an object in the format

{
  'key' : string or function()
} 

You can name the 'key' anything you like - in my case I called 'style'.

Then for the value you have two options:

• If it's a string, then it is an alias for a service.

• If it's function, then it is injected and the return value is treated as the dependency.

The main point here is that the code inside the function is going to be executed before before the controller is instantiated and the $routeChangeSuccess event is fired.

Hope that helps.

You've already done it correctly by using a DateTime parameter with the value from the DateTime, so it should already work. Forget about ToString() - since that isn't used here.

If there is a difference, it is most likely to do with different precision between the two environments; maybe choose a rounding (seconds, maybe?) and use that. Also keep in mind UTC/local/unknown (the DB has no concept of the "kind" of date; .NET does).

I have a table and the date-times in it are in the format: 2011-07-01 15:17:33.357

Note that datetimes in the database aren't in any such format; that is just your query-client showing you white lies. It is stored as a number (and even that is an implementation detail), because humans have this odd tendency not to realise that the date you've shown is the same as 40723.6371916281. Stupid humans. By treating it simply as a "datetime" throughout, you shouldn't get any problems.

I always have to look this one up time and time again, so here is my answer.

Asserting multiple method calls on different objects of the same class

Suppose we have a heavy duty class (which we want to mock):

In [1]: class HeavyDuty(object):
   ...:     def __init__(self):
   ...:         import time
   ...:         time.sleep(2)  # <- Spends a lot of time here
   ...:     
   ...:     def do_work(self, arg1, arg2):
   ...:         print("Called with %r and %r" % (arg1, arg2))
   ...:  

here is some code that uses two instances of the HeavyDuty class:

In [2]: def heavy_work():
   ...:     hd1 = HeavyDuty()
   ...:     hd1.do_work(13, 17)
   ...:     hd2 = HeavyDuty()
   ...:     hd2.do_work(23, 29)
   ...:    

Now, here is a test case for the heavy_work function:

In [3]: from unittest.mock import patch, call
   ...: def test_heavy_work():
   ...:     expected_calls = [call.do_work(13, 17),call.do_work(23, 29)]
   ...:     
   ...:     with patch('__main__.HeavyDuty') as MockHeavyDuty:
   ...:         heavy_work()
   ...:         MockHeavyDuty.return_value.assert_has_calls(expected_calls)
   ...:  

We are mocking the HeavyDuty class with MockHeavyDuty. To assert method calls coming from every HeavyDuty instance we have to refer to MockHeavyDuty.return_value.assert_has_calls, instead of MockHeavyDuty.assert_has_calls. In addition, in the list of expected_calls we have to specify which method name we are interested in asserting calls for. So our list is made of calls to call.do_work, as opposed to simply call.

Exercising the test case shows us it is successful:

In [4]: print(test_heavy_work())
None

If we modify the heavy_work function, the test fails and produces a helpful error message:

In [5]: def heavy_work():
   ...:     hd1 = HeavyDuty()
   ...:     hd1.do_work(113, 117)  # <- call args are different
   ...:     hd2 = HeavyDuty()
   ...:     hd2.do_work(123, 129)  # <- call args are different
   ...:     

In [6]: print(test_heavy_work())
---------------------------------------------------------------------------
(traceback omitted for clarity)

AssertionError: Calls not found.
Expected: [call.do_work(13, 17), call.do_work(23, 29)]
Actual: [call.do_work(113, 117), call.do_work(123, 129)]

Asserting multiple calls to a function

To contrast with the above, here is an example that shows how to mock multiple calls to a function:

In [7]: def work_function(arg1, arg2):
   ...:     print("Called with args %r and %r" % (arg1, arg2))

In [8]: from unittest.mock import patch, call
   ...: def test_work_function():
   ...:     expected_calls = [call(13, 17), call(23, 29)]    
   ...:     with patch('__main__.work_function') as mock_work_function:
   ...:         work_function(13, 17)
   ...:         work_function(23, 29)
   ...:         mock_work_function.assert_has_calls(expected_calls)
   ...:    

In [9]: print(test_work_function())
None

There are two main differences. The first one is that when mocking a function we setup our expected calls using call, instead of using call.some_method. The second one is that we call assert_has_calls on mock_work_function, instead of on mock_work_function.return_value.

Check if you have "https://rubygems.org/" as a source to find gems at:

$ gem sources
*** CURRENT SOURCES ***

https://rubygems.org/

If not, you should be able to add it with

$ gem sources --add https://rubygems.org/
https://rubygems.org/ added to sources

Here are docs for the gem source command.

The key to the whole problem is here:

if (-1 == index) {
    throw ADP.IndexOutOfRange(fieldName);
}

If the referenced three lines (currently lines 72, 73, and 74) are taken out, then you can easily check for -1 in order to determine if the column doesn't exist.

The only way around this while ensuring native performance is to use a Reflection based implementation, like the following:

Usings:

using System;
using System.Data;
using System.Reflection;
using System.Data.SqlClient;
using System.Linq;
using System.Web.Compilation; // I'm not sure what the .NET Core equivalent to BuildManager.cs

The Reflection based extension method:

/// Gets the column ordinal, given the name of the column.
/// </summary>
/// <param name="reader"></param>
/// <param name="name">The name of the column.</param>
/// <returns> The zero-based column ordinal. -1 if the column does not exist.</returns>
public static int GetOrdinalSoft(this SqlDataReader reader, string name)
{
    try
    {
        // Note that "Statistics" will not be accounted for in this implemenation
        // If you have SqlConnection.StatisticsEnabled set to true (the default is false), you probably don't want to use this method
        // All of the following logic is inspired by the actual implementation of the framework:
        // https://referencesource.microsoft.com/#System.Data/fx/src/data/System/Data/SqlClient/SqlDataReader.cs,d66096b6f57cac74
        if (name == null)
            throw new ArgumentNullException("fieldName");

        Type sqlDataReaderType = typeof(SqlDataReader);
        object fieldNameLookup = sqlDataReaderType.GetField("_fieldNameLookup", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(reader);
        Type fieldNameLookupType;
        if (fieldNameLookup == null)
        {
            MethodInfo checkMetaDataIsReady = sqlDataReaderType.GetRuntimeMethods().First(x => x.Name == "CheckMetaDataIsReady" && x.GetParameters().Length == 0);
            checkMetaDataIsReady.Invoke(reader, null);
            fieldNameLookupType = BuildManager.GetType("System.Data.ProviderBase.FieldNameLookup", true, false);
            ConstructorInfo ctor = fieldNameLookupType.GetConstructor(new[] { typeof(SqlDataReader), typeof(int) });
            fieldNameLookup = ctor.Invoke(new object[] { reader, sqlDataReaderType.GetField("_defaultLCID", BindingFlags.NonPublic | BindingFlags.Instance).GetValue(reader) });
        }
        else
            fieldNameLookupType = fieldNameLookup.GetType();

        MethodInfo indexOf = fieldNameLookupType.GetMethod("IndexOf", BindingFlags.Public | BindingFlags.Instance, null, new Type[] { typeof(string) }, null);

        return (int)indexOf.Invoke(fieldNameLookup, new object[] { name });
    }
    catch
    {
        // .NET Implemenation might have changed, revert back to the classic solution.
        if (reader.FieldCount > 11) // Performance observation by b_levitt
        {
            try
            {
                return reader.GetOrdinal(name);
            }
            catch
            {
                return -1;
            }
        }
        else
        {
            var exists = Enumerable.Range(0, reader.FieldCount).Any(i => string.Equals(reader.GetName(i), name, StringComparison.OrdinalIgnoreCase));
            if (exists)
                return reader.GetOrdinal(name);
            else
                return -1;
        }
    }
}

hadoop.tmp.dir in the core-site.xml is defaulted to /tmp/hadoop-${user.name} which is cleaned after every reboot. Change this to some other directory which doesn't get cleaned on reboot.

I'm running Git version 2.6.1.windows.1 on Windows 10, so I needed a slight modification to Nevik's answer (tilde instead of caret):

git diff COMMIT~ COMMIT

Another option is to quote the caret:

git diff "COMMIT^" COMMIT

Simply do this, with genymotion device running you can open Virtual Box , and see that there is a VM for you device , then go to network Settings of the VM, NAT and do port forwarding of local 5555 to remote 5555 screen attachedVirtual Box Nat Network Port forwarding

To remove just a few specific files from being tracked:

git update-index --assume-unchanged path/to/file

If ever you want to start tracking it again:

git update-index --no-assume-unchanged path/to/file                      

I thought I'd contribute a nice Swift solution:

struct Pt {
    var x: Double
    var y: Double
}

struct LineSegment {
    var p1: Pt
    var p2: Pt
}

func doLineSegmentsIntersect(ls1: LineSegment, ls2: LineSegment) -> Bool {

    if (ls1.p2.x-ls1.p1.x == 0) { //handle vertical segment1
        if (ls2.p2.x-ls2.p1.x == 0) {
            //both lines are vertical and parallel
            return false
        }

        let x = ls1.p1.x

        let slope2 = (ls2.p2.y-ls2.p1.y)/(ls2.p2.x-ls2.p1.x)
        let c2 = ls2.p1.y-slope2*ls2.p1.x

        let y = x*slope2+c2 // y intersection point

        return (y > ls1.p1.y && x < ls1.p2.y) || (y > ls1.p2.y && y < ls1.p1.y) // check if y is between y1,y2 in segment1
    }

    if (ls2.p2.x-ls2.p1.x == 0) { //handle vertical segment2

        let x = ls2.p1.x

        let slope1 = (ls1.p2.y-ls1.p1.y)/(ls1.p2.x-ls1.p1.x)
        let c1 = ls1.p1.y-slope1*ls1.p1.x

        let y = x*slope1+c1 // y intersection point

        return (y > ls2.p1.y && x < ls2.p2.y) || (y > ls2.p2.y && y < ls2.p1.y) // validate that y is between y1,y2 in segment2

    }

    let slope1 = (ls1.p2.y-ls1.p1.y)/(ls1.p2.x-ls1.p1.x)
    let slope2 = (ls2.p2.y-ls2.p1.y)/(ls2.p2.x-ls2.p1.x)

    if (slope1 == slope2) { //segments are parallel
        return false
    }

    let c1 = ls1.p1.y-slope1*ls1.p1.x
    let c2 = ls2.p1.y-slope2*ls2.p1.x

    let x = (c2-c1)/(slope1-slope2)

    return (((x > ls1.p1.x && x < ls1.p2.x) || (x > ls1.p2.x && x < ls1.p1.x)) &&
        ((x > ls2.p1.x && x < ls2.p2.x) || (x > ls2.p2.x && x < ls2.p1.x)))
    //validate that x is between x1,x2 in both segments

}

I usually use:

l = [ word.strip() for word in text.split(',') ]

the strip remove spaces around words.

Searching for a solution, I got the previous answers and could make content centered with Matthias Weiler's answer, but using text-align:

#content{
  position: absolute;
  left: 0;
  right: 0;
  text-align: center;
}

It worked with Google Chrome and Firefox.

"not equal" So in this case, $RESULT is tested to not be equal to zero.

However, the test is done numerically, not alphabetically:

n1 -ne n2     True if the integers n1 and n2 are not algebraically equal.

compared to:

s1 != s2      True if the strings s1 and s2 are not identical.

I think your confusion is with C# properties vs. fields/variables. In C# you cannot define abstract fields, even in an abstract class. You can, however, define abstract properties as these are effectively methods (e.g. compiled to get_TAG() and set_TAG(...)).

As some have reminded, you should never have public fields/variables in your classes, even in C#. Several answers have hinted at what I would recommend, but have not made it clear. You should translate your idea into Java as a JavaBean property, using getTAG(). Then your sub-classes will have to implement this (I also have written a project with table classes that do this).

So you can have an abstract class defined like this...

public abstract class AbstractTable {

    public abstract String getTag();
    public abstract void init();

    ...
}

Then, in any concrete subclasses you would need to define a static final variable (constant) and return that from the getTag(), something like this:

public class SalesTable extends AbstractTable {

    private static final String TABLE_NAME = "Sales";

    public String getTag() {
        return TABLE_NAME;
    }

    public void init() {
        ...
        String tableName = getTag();
        ...
    }

}

EDIT:

You cannot override inherited fields (in either C# or Java). Nor can you override static members, whether they are fields or methods. So this also is the best solution for that. I changed my init method example above to show how this would be used - again, think of the getXXX method as a property.

$ source_file_filename_no_ext=${source_file%.*}
$ echo ${source_file_filename_no_ext##*/}

The key is to use $(window).load(function(){} so we know the image is loaded. Hide the image via the css function then fade it in using fadeIn:

$(function() {

  $(window).load(function(){
    $('#logo').css({visibility: 'visible', opacity: 0}).fadeIn(1000);
  });

});

Idea from: http://www.getpeel.com/

Useful variation for docker-compose users:

docker-compose ps -q | xargs docker container inspect  \
   -f '{{ range .Mounts }}{{ .Name }}:{{ .Destination }} {{ end }}' 

This will very neatly output parseable volume info. Example from my wordpress docker-compose:

ubuntu@core $ docker-compose ps -q | xargs docker container inspect  -f '{{ range .Mounts }}{{ .Name }}:{{ .Destination }} {{ end }}' 
core_wpdb:/var/lib/mysql 
core_wpcode:/code core_wphtml:/var/www/html 

The output contains one line for each container, listing the volumes (and mount points) used. Alter the {{ .Name }}:{{ .Destination }} portion to output the info you would like.

If you just want a simple list of volumes, one per line

$ docker-compose ps -q | xargs docker container inspect  \
   -f '{{ range .Mounts }}{{ .Name }} {{ end }}' \
   | xargs -n 1 echo
core_wpdb
core_wpcode
core_wphtml

Great to generate a list of volumes to backup. I use this technique along with Blacklabelops Volumerize to backup all volumes used by all containers within a docker-compose. The docs for Volumerize don't call it out, but you don't need to use it in a persistent container or to use the built-in facilities for starting and stopping services. I prefer to leave critical operations such as backup and service control to the actual user (outside docker). My backups are triggered by the actual (non-docker) user account, and use docker-compose stop to stop services, backup all volumes in use, and finally docker-compose start to restart.

If you want the 'apparent size' (that is the number of bytes in each file), not size taken up by files on the disk, use the -b or --bytes option (if you got a Linux system with GNU coreutils):

% du -sbh <directory>

In your app/build.gradle file, you can set the minSdkVersion inside defaultConfig.

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.name.app"
        minSdkVersion 19    // This over here
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }

Are you using JavaScript or jQuery besides the html? If you are, you can do something like:

HTML:

<select id='some_selector'></select>?

jQuery:

var select = '';
for (i=1;i<=100;i++){
    select += '<option val=' + i + '>' + i + '</option>';
}
$('#some_selector').html(select);

As you can see here.

Another option for compatible browsers instead of select, you can use is HTML5's input type=number:

<input type="number" min="1" max="100" value="1">

This worked for me:

$.ajax({
    url:"../messaging/delete.php",
    type:"POST",
    data:{messages:selected},
    success:function(data){
     if(data === "done"){

     }
     info($("#notification"), data);
    },
    beforeSend:function(){
         info($("#notification"),"Deleting "+count+" messages");
    },
    error:function(jqXHR, textStatus, errorMessage){
        error($("#notification"),errorMessage);
    }
});

And this for your PHP:

$messages = $_POST['messages']
foreach($messages as $msg){
    echo $msg;
}

MDN has the following to say about string.concat():

It is strongly recommended to use the string concatenation operators (+, +=) instead of this method for perfomance reasons

Also see the link by @Bergi.

I found the following algorithm provides a very good statistical distribution. Each input bit affects each output bit with about 50% probability. There are no collisions (each input results in a different output). The algorithm is fast except if the CPU doesn't have a built-in integer multiplication unit. C code, assuming int is 32 bit (for Java, replace >> with >>> and remove unsigned):

unsigned int hash(unsigned int x) {
    x = ((x >> 16) ^ x) * 0x45d9f3b;
    x = ((x >> 16) ^ x) * 0x45d9f3b;
    x = (x >> 16) ^ x;
    return x;
}

The magic number was calculated using a special multi-threaded test program that ran for many hours, which calculates the avalanche effect (the number of output bits that change if a single input bit is changed; should be nearly 16 on average), independence of output bit changes (output bits should not depend on each other), and the probability of a change in each output bit if any input bit is changed. The calculated values are better than the 32-bit finalizer used by MurmurHash, and nearly as good (not quite) as when using AES. A slight advantage is that the same constant is used twice (it did make it slightly faster the last time I tested, not sure if it's still the case).

You can reverse the process (get the input value from the hash) if you replace the 0x45d9f3b with 0x119de1f3 (the multiplicative inverse):

unsigned int unhash(unsigned int x) {
    x = ((x >> 16) ^ x) * 0x119de1f3;
    x = ((x >> 16) ^ x) * 0x119de1f3;
    x = (x >> 16) ^ x;
    return x;
}

For 64-bit numbers, I suggest to use the following, even thought it might not be the fastest. This one is based on splitmix64, which seems to be based on the blog article Better Bit Mixing (mix 13).

uint64_t hash(uint64_t x) {
    x = (x ^ (x >> 30)) * UINT64_C(0xbf58476d1ce4e5b9);
    x = (x ^ (x >> 27)) * UINT64_C(0x94d049bb133111eb);
    x = x ^ (x >> 31);
    return x;
}

For Java, use long, add L to the constant, replace >> with >>> and remove unsigned. In this case, reversing is more complicated:

uint64_t unhash(uint64_t x) {
    x = (x ^ (x >> 31) ^ (x >> 62)) * UINT64_C(0x319642b2d24d8ec3);
    x = (x ^ (x >> 27) ^ (x >> 54)) * UINT64_C(0x96de1b173f119089);
    x = x ^ (x >> 30) ^ (x >> 60);
    return x;
}

Update: You may also want to look at the Hash Function Prospector project, where other (possibly better) constants are listed.

To check whether select box has any values:

if( $('#fruit_name').has('option').length > 0 ) {

To check whether selected value is empty:

if( !$('#fruit_name').val() ) { 

Another solution is using vue-router-back-mixin

import BackMixin from `vue-router-back-mixin`

export default {
  ...
  mixins: [BackMixin],
  methods() {
    goBack() {
      this.backMixin_handleBack()
    }
  }
  ...
}

You can use AlarmManager in coop with notification mechanism Something like this:

Intent intent = new Intent(ctx, ReminderBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(ctx, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) ctx.getSystemService(Activity.ALARM_SERVICE);
// time of of next reminder. Unix time.
long timeMs =...
if (Build.VERSION.SDK_INT < 19) {
    am.set(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
} else {
    am.setExact(AlarmManager.RTC_WAKEUP, timeMs, pendingIntent);
}

It starts alarm.

public class ReminderBroadcastReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                .setSmallIcon(...)
                .setContentTitle(..)
                .setContentText(..);
        Intent intentToFire = new Intent(context, Activity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intentToFire, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(pendingIntent);
        NotificationManagerCompat.from(this);.notify((int) System.currentTimeMillis(), builder.build());
    }
}

According to this SO link you can print a specific div with

w=window.open();
w.document.write(document.getElementsByClassName('report_left_inner')[0].innerH??TML);
w.print();
w.close();

AES encrypt/decrypt in android

String encData= encrypt("keykey".getBytes("UTF-16LE"), ("0123000000000215").getBytes("UTF-16LE"));

String decData= decrypt("keykey",Base64.decode(encData.getBytes("UTF-16LE"), Base64.DEFAULT));

encrypt function

private static String encrypt(byte[] key, byte[] clear) throws Exception
    {
        MessageDigest md = MessageDigest.getInstance("md5");
        byte[] digestOfPassword = md.digest(key);

        SecretKeySpec skeySpec = new SecretKeySpec(digestOfPassword, "AES");
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        byte[] encrypted = cipher.doFinal(clear);
        return Base64.encodeToString(encrypted,Base64.DEFAULT);
    }

decrypt function

private static String decrypt(String key, byte[] encrypted) throws Exception
    {
        MessageDigest md = MessageDigest.getInstance("md5");
        byte[] digestOfPassword = md.digest(key.getBytes("UTF-16LE"));

        SecretKeySpec skeySpec = new SecretKeySpec(digestOfPassword, "AES");
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS7Padding");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec);
        byte[] decrypted = cipher.doFinal(encrypted);
        return new String(decrypted, "UTF-16LE");
    }

AES encrypt/decrypt in c#

 static void Main(string[] args)
        {
            string enc = encryptAES("0123000000000215", "keykey");
            string dec = decryptAES(enc, "keykey");

            Console.ReadKey();
        }

encrypt function

 public static string encryptAES(string input, string key)
        {
            var plain = Encoding.Unicode.GetBytes(input);

            // 128 bits
            AesCryptoServiceProvider provider = new AesCryptoServiceProvider();
            provider.KeySize = 128;
            provider.Mode = CipherMode.ECB;
            provider.Padding = PaddingMode.PKCS7;

            provider.Key = CalculateMD5Hash(key);

            var enc = provider.CreateEncryptor().TransformFinalBlock(plain, 0, plain.Length);
            return Convert.ToBase64String(enc);
        }

decrypt function

public static string decryptAES(string encryptText, string key)
{
    byte[] enc = Convert.FromBase64String(encryptText);
    // 128 bits
    AesCryptoServiceProvider provider = new AesCryptoServiceProvider();
    provider.KeySize = 128;
    provider.Mode = CipherMode.ECB;
    provider.Padding = PaddingMode.PKCS7;

    provider.Key = CalculateMD5Hash(key);


    var dec = provider.CreateDecryptor().TransformFinalBlock(enc, 0, enc.Length);
    return Encoding.Unicode.GetString(dec);
}

create md5

 public static byte[] CalculateMD5Hash(string input)
        {
            MD5 md5 = MD5.Create();
            byte[] inputBytes = Encoding.Unicode.GetBytes(input);
            return md5.ComputeHash(inputBytes);
        }

To allow user ec2-user (Amazon AWS) write access to the public web directory (/var/www/html),
enter this command via Putty or Terminal, as the root user sudo:

chown -R ec2-user /var/www/html

Make sure permissions on that entire folder were correct:

chmod -R 755 /var/www/html

Doc's:

Setting up amazon ec2-instances

Connect to Amazon EC2 file directory using Filezilla and SFTP (Video)

Understanding and Using File Permissions

You could check with:

($Member.PropertyNames -contains "Name") this will check for the Named property

Mine was because Firebase SDK in Gradle file was set to a wrong number version.

I removed the Firebase debs from Gradle and re-installed them again using Firebase Assistant

First of all the Android browser should support Animated GIFs. If it doesn't then it's a bug! Have a look at the issue trackers.

If you're displaying these animated GIFs outside of a browser it might be a different story. To do what you're asking would require external library that supports the decoding of Animated GIFs.

The first port of call would be to look at Java2D or JAI (Java Advanced Imaging) API, although I would be very surprised if Android Dalvik would support those libraries in your App.

Mongoose 4.4.0 now supports bulk insert

Mongoose 4.4.0 introduces --true-- bulk insert with the model method .insertMany(). It is way faster than looping on .create() or providing it with an array.

Usage:

var rawDocuments = [/* ... */];

Book.insertMany(rawDocuments)
    .then(function(mongooseDocuments) {
         /* ... */
    })
    .catch(function(err) {
        /* Error handling */
    });

Or

Book.insertMany(rawDocuments, function (err, mongooseDocuments) { /* Your callback function... */ });

You can track it on:

• https://github.com/Automattic/mongoose/issues/723
• https://github.com/Automattic/mongoose/blob/1887e72694829b62f4e3547283783cebbe66b46b/lib/model.js#L1774

Not sure in python 2.x but in python 3.6, assuming you are trying to run the whole suite, you just have to use -t

-t, --top-level-directory directory Top level directory of project (defaults to start directory)

So, on a structure like

project_root
  |
  |----- my_module
  |          \
  |           \_____ my_class.py
  |
  \ tests
      \___ test_my_func.py

One could for example use:

python3 unittest discover -s /full_path/project_root/tests -t /full_path/project_root/

And still import the my_module.my_class without major dramas.

Create a bare GIT repository

A small rant: git is unable to create a normal bare repository by itself. Stupid git indeed.

To be precise, it is not possible to clone empty repositories. So an empty repository is a useless repository. Indeed, you normally create an empty repository and immediately fill it:

git init
git add .

However, git add is not possible when you create a bare repository:

git --bare init
git add .

gives an error "fatal: This operation must be run in a work tree".

You can't check it out either:

Initialized empty Git repository in /home/user/myrepos/.git/
fatal: http://repository.example.org/projects/myrepos.git/info/refs not found: did you run git update-server-info on the server?

git --bare init
git update-server-info # this creates the info/refs file
chown -R <user>:<group> . # make sure others can update the repository

The solution is to create another repository elsewhere, add a file in that repository and, push it to the bare repository.

mkdir temp; cd temp
git init
touch .gitignore
git add .gitignore
git commit -m "Initial commit"
git push (url or path of bare repository) master
cd ..; rm -rf temp

hope this can help u

If you already have your parameters set like $_POST['eg'] for example and you don't wish to change it, simply do it like this:

$_POST = json_decode(file_get_contents('php://input'), true);

This will save you the hassle of changing all $_POST to something else and allow you to still make normal post requests if you wish to take this line out.

To merge only the changes from branch2's file.py, make the other changes go away.

git checkout -B wip branch2
git read-tree branch1
git checkout branch2 file.py
git commit -m'merging only file.py history from branch2 into branch1'
git checkout branch1
git merge wip

Merge will never even look at any other file. You might need to '-f' the checkouts if the trees are different enough.

Note that this will leave branch1 looking as if everything in branch2's history to that point has been merged, which may not be what you want. A better version of the first checkout above is probably

git checkout -B wip `git merge-base branch1 branch2`

in which case the commit message should probably also be

git commit -m"merging only $(git rev-parse branch2):file.py into branch1"

if you have .idea/* already added in your .gitignore and if git rm -r --cached .idea/ command does not work (note: shows error-> fatal: pathspec '.idea/' did not match any files) try this

remove .idea file from your app run this command

rm -rf .idea

run git status now and check while running the app .idea folder will be created again but it will not be tracked

Copied and pasted from http://www.w3schools.com, there is no need for the JQuery overhead.

var person = {fname:"John", lname:"Doe", age:25};

var text = "";
var x;
for (x in person) {
    text += person[x];
}

RESULT: John Doe 25

First, find the columns that have 'unnamed', then drop those columns. Note: You should Add inplace = True to the .drop parameters as well.

df.drop(df.columns[df.columns.str.contains('unnamed',case = False)],axis = 1, inplace = True)

SELECT    COUNT(*) 
FROM      table_emp 
WHERE     YEAR(ARR_DATE) = '2012' 
GROUP BY  MONTH(ARR_DATE)

Actually, this may or may not be much help but you could write a script which created a Java class for each Python class, including method stubs, placing the Python implementation of the method inside the Javadoc

In fact, this is probably pretty easy to knock up in Python.

I worked for a company which undertook a port to Java of a huge Smalltalk (similar-ish to Python) system and this is exactly what they did. Filling in the methods was manual but invaluable, because it got you to really think about what was going on. I doubt that a brute-force method would result in nice code.

Here's another possibility: can you convert your Python to Jython more easily? Jython is just Python for the JVM. It may be possible to use a Java decompiler (e.g. JAD) to then convert the bytecode back into Java code (or you may just wish to run on a JVM). I'm not sure about this however, perhaps someone else would have a better idea.

You can also use the environment variable $window so that a global variable declare outside a controller can be checked inside a $watch

var initWatch = function($scope,$window){
    $scope.$watch(function(scope) { return $window.globalVar },
        function(newValue) {
            $scope.updateDisplayedVar(newValue);
    });
}

Becareful, the digest cycle is longer with these global values, so it is not always real-timed updated. I need to investigate on that digest time with this configuration.

Try RGBA, e.g.

div { background-color: rgba(255, 255, 255, 0.5); }

As always, this won't work in every single browser ever written.

This is the way I found easiest and you only need one iPhone and iPad:

Record device screen with QuickTime Player:

• Connect your device.
• Open QuickTime Player.
• Choose File > New Movie Recording (CMD + alt + N)
• In the window that appears, select your iOS device as the camera with maximum resolution.
• Save video file (CMD + S)

Open iMovie

• Select File -> New App Preview
• Drag an IMAGE from your app with the biggest resolution ex. a 1920 x 1080 screenshot to the project. (This makes the video 1920 x 1080 even if you recorded with a iPhone 5)
• Drag the movie you recorded to the project.
• Save by choosing File -> Share -> App Preview

Now do this with all of your devices or:

Download Handbreak: https://handbrake.fr/downloads.php

And resize the high res video:

• Drag your high res video to Handbreak
• Select "Picture Settings" icon
• Resize to the correct size - close and press "Start" icon - gets saved to desktop

This also happened to me. I tried some of the solutions above but couldn't get it done. What i have to do was reinstall the JRE/JDK again and it worked!

When i executed the command "java-version" in cmd, i was getting an error trying to load a class and then when i reinstalled JRE/JDK, it worked all good!

Literal 0 is of type int and you can't assign int to std::string. Use mValue.clear() or assign an empty string mValue="".

I had the same error when i tried to send email using SmtpClient via proxy server (Usergate).

Verifies the certificate contained the address of the server, which is not equal to the address of the proxy server, hence the error. My solution: when an error occurs while checking the certificate, receive the certificate, export it and check.

public static bool RemoteServerCertificateValidationCallback(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
    {
        if (sslPolicyErrors == SslPolicyErrors.None)
            return true;

        // if got an cert auth error
        if (sslPolicyErrors != SslPolicyErrors.RemoteCertificateNameMismatch) return false;
        const string sertFileName = "smpthost.cer";

        // check if cert file exists
        if (File.Exists(sertFileName))
        {
            var actualCertificate = X509Certificate.CreateFromCertFile(sertFileName);
            return certificate.Equals(actualCertificate);
        }

        // export and check if cert not exists
        using (var file = File.Create(sertFileName))
        {
            var cert = certificate.Export(X509ContentType.Cert);
            file.Write(cert, 0, cert.Length);
        }
        var createdCertificate = X509Certificate.CreateFromCertFile(sertFileName);
        return certificate.Equals(createdCertificate);
    }

Full code of my email sender class:

public class EmailSender
{
    private readonly SmtpClient _smtpServer;
    private readonly MailAddress _fromAddress;

    public EmailSender()
    {
        ServicePointManager.ServerCertificateValidationCallback = RemoteServerCertificateValidationCallback;
        _smtpServer = new SmtpClient();
    }

    public EmailSender(string smtpHost, int smtpPort, bool enableSsl, string userName, string password, string fromEmail, string fromName) : this()
    {
        _smtpServer.Host = smtpHost;
        _smtpServer.Port = smtpPort;
        _smtpServer.UseDefaultCredentials = false;
        _smtpServer.EnableSsl = enableSsl;
        _smtpServer.Credentials = new NetworkCredential(userName, password);

        _fromAddress = new MailAddress(fromEmail, fromName);
    }

    public bool Send(string address, string mailSubject, string htmlMessageBody,
        string fileName = null)
    {
        return Send(new List<MailAddress> { new MailAddress(address) }, mailSubject, htmlMessageBody, fileName);
    }

    public bool Send(List<MailAddress> addressList, string mailSubject, string htmlMessageBody,
        string fileName = null)
    {
        var mailMessage = new MailMessage();
        try
        {
            if (_fromAddress != null)
                mailMessage.From = _fromAddress;

            foreach (var addr in addressList)
                mailMessage.To.Add(addr);

            mailMessage.SubjectEncoding = Encoding.UTF8;
            mailMessage.Subject = mailSubject;

            mailMessage.Body = htmlMessageBody;
            mailMessage.BodyEncoding = Encoding.UTF8;
            mailMessage.IsBodyHtml = true;

            if ((fileName != null) && (System.IO.File.Exists(fileName)))
            {
                var attach = new Attachment(fileName, MediaTypeNames.Application.Octet);
                attach.ContentDisposition.CreationDate = System.IO.File.GetCreationTime(fileName);
                attach.ContentDisposition.ModificationDate = System.IO.File.GetLastWriteTime(fileName);
                attach.ContentDisposition.ReadDate = System.IO.File.GetLastAccessTime(fileName);
                mailMessage.Attachments.Add(attach);
            }
            _smtpServer.Send(mailMessage);
        }
        catch (Exception e)
        {
            // TODO lor error
            return false;
        }
        return true;
    }

    public static bool RemoteServerCertificateValidationCallback(Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
    if (sslPolicyErrors == SslPolicyErrors.None)
        return true;

    // if got an cert auth error
    if (sslPolicyErrors != SslPolicyErrors.RemoteCertificateNameMismatch) return false;
    const string sertFileName = "smpthost.cer";

    // check if cert file exists
    if (File.Exists(sertFileName))
    {
        var actualCertificate = X509Certificate.CreateFromCertFile(sertFileName);
        return certificate.Equals(actualCertificate);
    }

    // export and check if cert not exists
    using (var file = File.Create(sertFileName))
    {
        var cert = certificate.Export(X509ContentType.Cert);
        file.Write(cert, 0, cert.Length);
    }
    var createdCertificate = X509Certificate.CreateFromCertFile(sertFileName);
    return certificate.Equals(createdCertificate);
}

}

I never liked using Robot, so I made my own simple method for making screenshots of JFrame objects:

public static final void makeScreenshot(JFrame argFrame) {
    Rectangle rec = argFrame.getBounds();
    BufferedImage bufferedImage = new BufferedImage(rec.width, rec.height, BufferedImage.TYPE_INT_ARGB);
    argFrame.paint(bufferedImage.getGraphics());

    try {
        // Create temp file
        File temp = File.createTempFile("screenshot", ".png");

        // Use the ImageIO API to write the bufferedImage to a temporary file
        ImageIO.write(bufferedImage, "png", temp);

        // Delete temp file when program exits
        temp.deleteOnExit();
    } catch (IOException ioe) {
        ioe.printStackTrace();
    }
}

Chrome specifically blocks local file access this way for security reasons.

Here's a workaround to enable the flag in Chrome (and open your system up to vulnerabilities):

c:\Program Files (x86)\google\chrome\Application\chrome.exe --allow-file-access-from-files

Most of the answers above require you to specify precision. But what if you want to display floats like this, with no unnecessary zeros:

1
0.1
0.01
0.001
0.0001
0.00001
0.000001
0.000000000001

numpy has an answer: np.format_float_positional

import numpy as np

def format_float(num):
    return np.format_float_positional(num, trim='-')

Here is a pretty easy way to do it.

val data = List("it", "was", "the", "best", "of", "times", "it", "was", 
                 "the", "worst", "of", "times")
data.foldLeft(Map[String,Int]().withDefaultValue(0)){
  case (acc, letter) =>
    acc + (letter -> (1 + acc(letter)))
}
// => Map(worst -> 1, best -> 1, it -> 2, was -> 2, times -> 2, of -> 2, the -> 2)

One additional suggestion to be explicit. It seems best to go from specific to general down the stack of errors to get the desired error to be caught, so the specific ones don't get masked by the general one.

url='http://www.google.com/blahblah'

try:
    r = requests.get(url,timeout=3)
    r.raise_for_status()
except requests.exceptions.HTTPError as errh:
    print ("Http Error:",errh)
except requests.exceptions.ConnectionError as errc:
    print ("Error Connecting:",errc)
except requests.exceptions.Timeout as errt:
    print ("Timeout Error:",errt)
except requests.exceptions.RequestException as err:
    print ("OOps: Something Else",err)

Http Error: 404 Client Error: Not Found for url: http://www.google.com/blahblah

vs

url='http://www.google.com/blahblah'

try:
    r = requests.get(url,timeout=3)
    r.raise_for_status()
except requests.exceptions.RequestException as err:
    print ("OOps: Something Else",err)
except requests.exceptions.HTTPError as errh:
    print ("Http Error:",errh)
except requests.exceptions.ConnectionError as errc:
    print ("Error Connecting:",errc)
except requests.exceptions.Timeout as errt:
    print ("Timeout Error:",errt)     

OOps: Something Else 404 Client Error: Not Found for url: http://www.google.com/blahblah

For me, restarting Eclipse got rid of this error!

If you don't want to or simply can't use Linq you can also use the static Array.Exists(...); function:

https://msdn.microsoft.com/en-us/library/yw84x8be%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396

var arr = new string[]{"bird","foo","cat","dog"};

var catInside = Array.Exists( 
  arr, // your Array
  (s)=>{ return s == "cat"; } // the Predicate
);

When the Predicate do return true once catInside will be true as well.

Fravadona's answer is awesome and correct, but it requires the presence of lscpu. Since it is not present on the system where I need the number of physical cores, I tried to come up with one that relies only on proc/cpuinfo

cat /proc/cpuinfo | grep -B2 'core id' | sed 's/siblings.*/'/ | tr -d '[:space:]' | sed 's/--/\n/'g | sort -u | wc -l

It works perfectly, but unfortunately it isn't as robust as Fravadona's, since it will break if

• the name or order of the fields inside /proc/cpuinfo changes
• grep replaces the line separator it inserts (currently --) by some other string.

BUT, other than that, it works flawlessly :)

Here is a quick explanation of everything that is happening

grep -B2 'core id'

get only the lines we are interested (i.e "core id" and the 2 preceding lines)

sed 's/siblings.*/'/

remove the "siblings..." line

tr -d '[:space:]'

replace spacing chars

sed 's/--/\n/'g

replace the '--' char, which was inserted by grep, by a line break

sort -u

group by "physical id,core id"

wc -l

count the number of lines

Being a total noobie, I was very pleased with myself when this worked. I never thought I would be able to join the required lines together to group by "physical id" and "core id". It is kind of hacky, but works.

If any guru knows a way to simplify this mess, please let me know.

You don't say what shell you are using, but they generally don't support regular expressions that way, although there are common *nix CLI tools (grep, sed, etc) that do.

What shells like bash do support is globbing, which uses some similiar characters (eg, *) but is not the same thing.

Newer versions of bash do have a regular expression operator, =~:

for x in `ls`; do 
    if [[ $x =~ .+\..* ]]; then 
        echo $x; 
    fi; 
done

If you use "axios": "^0.17.1" version you can do like this:

Create instance of axios:

// Default config options
  const defaultOptions = {
    baseURL: <CHANGE-TO-URL>,
    headers: {
      'Content-Type': 'application/json',
    },
  };

  // Create instance
  let instance = axios.create(defaultOptions);

  // Set the AUTH token for any request
  instance.interceptors.request.use(function (config) {
    const token = localStorage.getItem('token');
    config.headers.Authorization =  token ? `Bearer ${token}` : '';
    return config;
  });

Then for any request the token will be select from localStorage and will be added to the request headers.

I'm using the same instance all over the app with this code:

import axios from 'axios';

const fetchClient = () => {
  const defaultOptions = {
    baseURL: process.env.REACT_APP_API_PATH,
    method: 'get',
    headers: {
      'Content-Type': 'application/json',
    },
  };

  // Create instance
  let instance = axios.create(defaultOptions);

  // Set the AUTH token for any request
  instance.interceptors.request.use(function (config) {
    const token = localStorage.getItem('token');
    config.headers.Authorization =  token ? `Bearer ${token}` : '';
    return config;
  });

  return instance;
};

export default fetchClient();

Good luck.

Here is the way I created ssn directive which checks for the the pattern and I have used RobinHerbots jquery.inputmask

angular.module('SocialSecurityNumberDirective', [])
       .directive('socialSecurityNumber', socialSecurityNumber);

function socialSecurityNumber() {
    var jquery = require('jquery');
    var inputmask = require("jquery.inputmask");
    return {
        require: 'ngModel',
        restrict: 'A',
        priority: 1000,
        link: function(scope,element, attr, ctrl) {

            var jquery_element = jquery(element);
            jquery_element.inputmask({mask:"***-**-****",autoUnmask:true});
            jquery_element.on('keyup paste focus blur', function() {
                var val = element.val();    
                ctrl.$setViewValue(val);
                ctrl.$render();

             });

            var pattern = /^\d{9}$/;

            var newValue = null;

            ctrl.$validators.ssnDigits = function(value) {
                 newValue = element.val();
                return newValue === '' ? true : pattern.test(newValue);    
            };
        }
    };
}

1. Open up a terminal
2. cd <ANDROID_SDK_PATH> (for me on Windows cd C:\Users\Willi\AppData\Local\Android\sdk)
3. cd platform-tools
4. adb shell (this works only if only one emulator is running)
5. cd data/data
6. su (gain super user privileges)
7. cd <PACKAGE_NAME>/databases
8. sqlite3 <DB_NAME>
9. issue SQL statements (important: terminate them with ;, otherwise the statement is not issued and it breaks to a new line instead.)

Note: Use ls (Linux) or dir (Windows) if you need to list directory contents.

I checked the source code you provided on GitHub. There were several mistakes / typos in the configuration.

In CustomerDbConfig / OrderDbConfig you should refer to customerEntityManager and packages should point at existing packages:

@Configuration
@EnableJpaRepositories(
    entityManagerFactoryRef = "customerEntityManager",
    transactionManagerRef = "customerTransactionManager",
    basePackages = {"com.mm.boot.multidb.repository.customer"})
public class CustomerDbConfig {

The packages to scan in customerEntityManager and orderEntityManager were both not pointing at proper package:

em.setPackagesToScan("com.mm.boot.multidb.model.customer");

Also the injection of proper EntityManagerFactory did not work. It should be:

@Bean(name = "customerTransactionManager")
public PlatformTransactionManager transactionManager(EntityManagerFactory customerEntityManager){

}

The above was causing the issue and the exception. While providing the name in a @Bean method you are sure you get proper EMF injected.

The last thing I have done was to disable to automatic configuration of JpaRepositories:

@EnableAutoConfiguration(exclude = JpaRepositoriesAutoConfiguration.class)

And with all fixes the application starts as you probably expect!

A more up to date answer for anyone else who comes across this:

(from https://www.jetbrains.com/help/idea/eclipse.html, §Auto-compilation; click for screenshots)

Compile automatically:

To enable automatic compilation, navigate to Settings/Preferences | Build, Execution, Deployment | Compiler and select the Build project automatically option

Show all errors in one place:

The Problems tool window appears if the Make project automatically option is enabled in the Compiler settings. It shows a list of problems that were detected on project compilation.

Use the Eclipse compiler: This is actually bundled in IntelliJ. It gives much more useful error messages, in my opinion, and, according to this blog, it's much faster since it was designed to run in the background of an IDE and uses incremental compilation.

While Eclipse uses its own compiler, IntelliJ IDEA uses the javac compiler bundled with the project JDK. If you must use the Eclipse compiler, navigate to Settings/Preferences | Build, Execution, Deployment | Compiler | Java Compiler and select it... The biggest difference between the Eclipse and javac compilers is that the Eclipse compiler is more tolerant to errors, and sometimes lets you run code that doesn't compile.

You are using the ISO date string format which, according to this page, causes the date to be constructed using the UTC timezone:

Note: parsing of date strings with the Date constructor (and Date.parse, they are equivalent) is strongly discouraged due to browser differences and inconsistencies. Support for RFC 2822 format strings is by convention only. Support for ISO 8601 formats differs in that date-only strings (e.g. "1970-01-01") are treated as UTC, not local.

If you format the text differently, such as "Jan 01 1970", then (at least on my machine) it uses your local timezone.

Have a look at the Enum class (struct ? ) itself. There is a Parse method on that but I'm not sure about a tryparse.

As few people shared to tick mark the checkbox for mysqli and mysqlind

but Hostgator (webhosting site) now does not give that option to select extension via the cpanel as that option is removed select PHP and now it gives the option for php manager

You can just select the Php version you want and not the extension.

Solution :- Called the hostgator , first time they said get in touch with your developer, ( i asked my brother and he downloaded the files locally and verified it was working fine on local system) <-- this was not needed though

Again called the hostgator and their backend team installed the missing extension and it was solved.

Below is the code which gives this error when it does not find the extension and you can find this line in load.php via ftp.

if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
    require_once ABSPATH . WPINC . '/functions.php';
    wp_load_translations_early();
    $args = array(
        'exit' => false,
        'code' => 'mysql_not_found',
    );
    wp_die(
        __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ),
        __( 'Requirements Not Met' ),
        $args
    );
    exit( 1 );
}

}

SELECT  FROM_UNIXTIME(mycolumn)
FROM    mytable

At first, the problem is because you did't put any parameter for mysqli_error. I can see that it has been solved based on the post here. Most probably, the next problem is cause by wrong file path for the included file.. .

Are you sure this code

$myConnection = mysqli_connect("$db_host","$db_username","$db_pass","$db_name") or die ("could not connect to mysql");

is in the 'scripts' folder and your main code file is on the same level as the script folder?

Global working tested solution.

getSupportFragmentManager() keeps the null reference some times and View pager does not create new since it find reference to same fragment. So to over come this use getChildFragmentManager() solves problem in simple way.

Don't do this:

new PagerAdapter(getSupportFragmentManager(), fragments);

Do this:

new PagerAdapter(getChildFragmentManager() , fragments);

Why $apply should be called?

TL;DR: $apply should be called whenever you want to apply changes made outside of Angular world.

Just to update @Dustin's answer, here is an explanation of what $apply exactly does and why it works.

$apply() is used to execute an expression in AngularJS from outside of the AngularJS framework. (For example from browser DOM events, setTimeout, XHR or third party libraries). Because we are calling into the AngularJS framework we need to perform proper scope life cycle of exception handling, executing watches.

Angular allows any value to be used as a binding target. Then at the end of any JavaScript code turn, it checks to see if the value has changed. That step that checks to see if any binding values have changed actually has a method, $scope.$digest()¹. We almost never call it directly, as we use $scope.$apply() instead (which will call $scope.$digest).

Angular only monitors variables used in expressions and anything inside of a $watch living inside the scope. So if you are changing the model outside of the Angular context, you will need to call $scope.$apply() for those changes to be propagated, otherwise Angular will not know that they have been changed thus the binding will not be updated².

It's simple, go to this folder:

~/Library/MobileDevice/Provisioning\ Profiles/

Open finder on your mac, and click on Go -> Go to Folder ... Just paste this into the search bar and hit Open. It will show the list of provisioning profiles present in Xcode. Delete all provisioning profiles.

A very direct way is to just use read.table on your character vector:

> read.table(text = text, sep = ".", colClasses = "character")
   V1 V2  V3  V4
1   F US CLE V13
2   F US CA6 U13
3   F US CA6 U13
4   F US CA6 U13
5   F US CA6 U13
6   F US CA6 U13
7   F US CA6 U13
8   F US CA6 U13
9   F US  DL U13
10  F US  DL U13
11  F US  DL U13
12  F US  DL Z13
13  F US  DL Z13

colClasses needs to be specified, otherwise F gets converted to FALSE (which is something I need to fix in "splitstackshape", otherwise I would have recommended that :) )

Update (> a year later)...

Alternatively, you can use my cSplit function, like this:

cSplit(as.data.table(text), "text", ".")
#     text_1 text_2 text_3 text_4
#  1:      F     US    CLE    V13
#  2:      F     US    CA6    U13
#  3:      F     US    CA6    U13
#  4:      F     US    CA6    U13
#  5:      F     US    CA6    U13
#  6:      F     US    CA6    U13
#  7:      F     US    CA6    U13
#  8:      F     US    CA6    U13
#  9:      F     US     DL    U13
# 10:      F     US     DL    U13
# 11:      F     US     DL    U13
# 12:      F     US     DL    Z13
# 13:      F     US     DL    Z13

Or, separate from "tidyr", like this:

library(dplyr)
library(tidyr)

as.data.frame(text) %>% separate(text, into = paste("V", 1:4, sep = "_"))
#    V_1 V_2 V_3 V_4
# 1    F  US CLE V13
# 2    F  US CA6 U13
# 3    F  US CA6 U13
# 4    F  US CA6 U13
# 5    F  US CA6 U13
# 6    F  US CA6 U13
# 7    F  US CA6 U13
# 8    F  US CA6 U13
# 9    F  US  DL U13
# 10   F  US  DL U13
# 11   F  US  DL U13
# 12   F  US  DL Z13
# 13   F  US  DL Z13

Giving an element the attribute readonly will give that element the readonly status. It doesn't matter what value you put after it or if you put any value after it, it will still see it as readonly. Putting readonly="false" won't work.

Suggested is to use the W3C standard, which is readonly="readonly".

Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes.

The simple idea behind the UNIX "execution model" is that there are two operations you can do.

The first is to fork(), which creates a brand new process containing a duplicate (mostly) of the current program, including its state. There are a few differences between the two processes which allow them to figure out which is the parent and which is the child.

The second is to exec(), which replaces the program in the current process with a brand new program.

From those two simple operations, the entire UNIX execution model can be constructed.

To add some more detail to the above:

The use of fork() and exec() exemplifies the spirit of UNIX in that it provides a very simple way to start new processes.

The fork() call makes a near duplicate of the current process, identical in almost every way (not everything is copied over, for example, resource limits in some implementations, but the idea is to create as close a copy as possible). Only one process calls fork() but two processes return from that call - sounds bizarre but it's really quite elegant

The new process (called the child) gets a different process ID (PID) and has the PID of the old process (the parent) as its parent PID (PPID).

Because the two processes are now running exactly the same code, they need to be able to tell which is which - the return code of fork() provides this information - the child gets 0, the parent gets the PID of the child (if the fork() fails, no child is created and the parent gets an error code).

That way, the parent knows the PID of the child and can communicate with it, kill it, wait for it and so on (the child can always find its parent process with a call to getppid()).

The exec() call replaces the entire current contents of the process with a new program. It loads the program into the current process space and runs it from the entry point.

So, fork() and exec() are often used in sequence to get a new program running as a child of a current process. Shells typically do this whenever you try to run a program like find - the shell forks, then the child loads the find program into memory, setting up all command line arguments, standard I/O and so forth.

But they're not required to be used together. It's perfectly acceptable for a program to call fork() without a following exec() if, for example, the program contains both parent and child code (you need to be careful what you do, each implementation may have restrictions).

This was used quite a lot (and still is) for daemons which simply listen on a TCP port and fork a copy of themselves to process a specific request while the parent goes back to listening. For this situation, the program contains both the parent and the child code.

Similarly, programs that know they're finished and just want to run another program don't need to fork(), exec() and then wait()/waitpid() for the child. They can just load the child directly into their current process space with exec().

Some UNIX implementations have an optimized fork() which uses what they call copy-on-write. This is a trick to delay the copying of the process space in fork() until the program attempts to change something in that space. This is useful for those programs using only fork() and not exec() in that they don't have to copy an entire process space. Under Linux, fork() only makes a copy of the page tables and a new task structure, exec() will do the grunt work of "separating" the memory of the two processes.

If the exec is called following fork (and this is what happens mostly), that causes a write to the process space and it is then copied for the child process, before modifications are allowed.

Linux also has a vfork(), even more optimised, which shares just about everything between the two processes. Because of that, there are certain restrictions in what the child can do, and the parent halts until the child calls exec() or _exit().

The parent has to be stopped (and the child is not permitted to return from the current function) since the two processes even share the same stack. This is slightly more efficient for the classic use case of fork() followed immediately by exec().

Note that there is a whole family of exec calls (execl, execle, execve and so on) but exec in context here means any of them.

The following diagram illustrates the typical fork/exec operation where the bash shell is used to list a directory with the ls command:

+--------+
| pid=7  |
| ppid=4 |
| bash   |
+--------+
    |
    | calls fork
    V
+--------+             +--------+
| pid=7  |    forks    | pid=22 |
| ppid=4 | ----------> | ppid=7 |
| bash   |             | bash   |
+--------+             +--------+
    |                      |
    | waits for pid 22     | calls exec to run ls
    |                      V
    |                  +--------+
    |                  | pid=22 |
    |                  | ppid=7 |
    |                  | ls     |
    V                  +--------+
+--------+                 |
| pid=7  |                 | exits
| ppid=4 | <---------------+
| bash   |
+--------+
    |
    | continues
    V

Banging my usual drum solo of JUST TRY IT, here's how you can answer questions like that in the future:

$ cat junk.c
#include <stdio.h>

char* string = "Hello\0";

int main(int argv, char** argc)
{
    printf("-->%s<--\n", string);
}
$ gcc -S junk.c
$ cat junk.s

... eliding the unnecessary parts ...

.LC0:
    .string "Hello"
    .string ""

...

.LC1:
    .string "-->%s<--\n"

...

Note here how the string I used for printf is just "-->%s<---\n" while the global string is in two parts: "Hello" and "". The GNU assembler also terminates strings with an implicit NUL character, so the fact that the first string (.LC0) is in those two parts indicates that there are two NULs. The string is thus 7 bytes long. Generally if you really want to know what your compiler is doing with a certain hunk of code, isolate it in a dummy example like this and see what it's doing using -S (for GNU -- MSVC has a flag too for assembler output but I don't know it off-hand). You'll learn a lot about how your code works (or fails to work as the case may be) and you'll get an answer quickly that is 100% guaranteed to match the tools and environment you're working in.

Try this:

<?php echo "http://" . $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; ?>

Learn more about the $_SERVER predefined variable.

If you plan on using https, you can use this:

function url(){
  return sprintf(
    "%s://%s%s",
    isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
    $_SERVER['SERVER_NAME'],
    $_SERVER['REQUEST_URI']
  );
}

echo url();
#=> http://127.0.0.1/foo

Per this answer, please make sure to configure your Apache properly so you can safely depend on SERVER_NAME.

<VirtualHost *>
    ServerName example.com
    UseCanonicalName on
</VirtualHost>

NOTE: If you're depending on the HTTP_HOST key (which contains user input), you still have to make some cleanup, remove spaces, commas, carriage return, etc. Anything that is not a valid character for a domain. Check the PHP builtin parse_url function for an example.

There are many reasons that waitFor() doesn't return.

But it usually boils down to the fact that the executed command doesn't quit.

This, again, can have many reasons.

One common reason is that the process produces some output and you don't read from the appropriate streams. This means that the process is blocked as soon as the buffer is full and waits for your process to continue reading. Your process in turn waits for the other process to finish (which it won't because it waits for your process, ...). This is a classical deadlock situation.

You need to continually read from the processes input stream to ensure that it doesn't block.

There's a nice article that explains all the pitfalls of Runtime.exec() and shows ways around them called "When Runtime.exec() won't" (yes, the article is from 2000, but the content still applies!)

Wrap your ListView in an Expanded widget

 Expanded(child:MyListView())

Try an LL suffix on the number, the compiler may be casting it to an intermediate type as part of the parse. See http://gcc.gnu.org/onlinedocs/gcc/Long-Long.html

long long int i2 = 0x0000444400004444LL;

Additionally, the the compiler is discarding the leading zeros, so 0x000044440000 is becoming 0x44440000, which is a perfectly acceptable 32-bit integer (which is why you aren't seeing any warnings prior to f2).

I'm not sure lookup is the right formula for this because of multiple arguments. Maybe hlookup or vlookup but these require you to have tables for values. A simple nested series of if does the trick for a small sample size

Try =IF(A1="a","pickup",IF(A1="b","collect",IF(A1="c","prepaid","")))

Now incorporate your left argument

=IF(LEFT(A1,1)="a","pickup",IF(LEFT(A1,1)="b","collect",IF(LEFT(A1,1)="c","prepaid","")))

Also note your usage of left, your argument doesn't specify the number of characters, but a set.

7/8/15 - Microsoft KB articles for the above mentioned functions. I don't think there's anything wrong with techonthenet, but I rather link to official sources.

• lookup
• hlookup
• vlookup
• if
• left

Thank you @Razvan who pointed me in the right direction. I was able to get it in one line and I successfully hunted down the imports for Hamcrest 1.3.

the imports:

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.beans.HasPropertyWithValue.hasProperty;

the code:

assertThat( myClass.getMyItems(), contains(
    hasProperty("name", is("foo")), 
    hasProperty("name", is("bar"))
));

Here's something to gather all the GET variables in a global object, a routine optimized over several years. Since the rise of jQuery, it now seems appropriate to store them in jQuery itself, am checking with John on a potential core implementation.

jQuery.extend({
    'Q' : window.location.search.length <= 1 ? {}
        : function(a){
            var i = a.length, 
                r = /%25/g,  // Ensure '%' is properly represented 
                h = {};      // (Safari auto-encodes '%', Firefox 1.5 does not)
            while(i--) {
                var p = a[i].split('=');
                h[ p[0] ] = r.test( p[1] ) ? decodeURIComponent( p[1] ) : p[1];
            }
            return h;
        }(window.location.search.substr(1).split('&'))
});

Example usage:

switch ($.Q.event) {
    case 'new' :
        // http://www.site.com/?event=new
        $('#NewItemButton').trigger('click');
        break;
    default :
}

Hope this helps. ;)

In my case, the Android emulator wasn't connected to the Wi-Fi.

See here Android Studio - Android Emulator Wifi Connected with No Internet

You might have some luck calling the Win32 API's MessageBoxA, although whether Win16 supports that particular method is for someone else to answer.

jQuery is just a JavaScript library (simply put, a JavaScript file). All you have to do is put it into your website directory and reference it in your HTML to use it.

For example, in the head tag of your webpage

<script type="text/javascript" src="../Js/jquery.js"></script>

You can download the current jQuery release from Downloading jQuery.

iframes are used a lot to include complete pages. When those pages are hosted on another domain you get problems with cross side scripting and stuff. There are ways to fix this.

Frames were used to divide your page into multiple parts (for example, a navigation menu on the left). Using them is no longer recommended.

You either need to keep creating new objects, or clone the existing one. See What is the most efficient way to deep clone an object in JavaScript? for how to clone.

Have you tried this?

<appSettings>  
  <add key="myurl" value="http://www.myurl.com?&amp;cid=&amp;sid="/>
<appSettings>

Easy:

SELECT SUBSTR(OrderNo, 1, 2) FROM shipment;

xcopy  "C:\Documents and Settings\user\Desktop\?????????" "D:\Backup" /s /e /y /i

Probably the problem is the space.Try with quotes.

Sometimes the field is not recognized by crystal reports as DATE, so you can add a formula with function: Date({YourField}), And add it to the report, now when you open the format object dialog you will find the date formatting options.

\ is used for escape sequences in programming languages.

\n prints a newline
\\ prints a backslash
\" prints "
\t prints a tabulator
\b moves the cursor one back

In my case in ASP MVC it was a method in controller that was returning null to View because of a wrong if statement.

if (condition)
{
    return null;
}

Condition fixed and I returned View, Problem fixed. There was nothing with encoding but I don't know why that was my error.

return View(result); // result is View's model

Always specify the minimum required version of cmake

cmake_minimum_required(VERSION 3.9)

You should declare a project. cmake says it is mandatory and it will define convenient variables PROJECT_NAME, PROJECT_VERSION and PROJECT_DESCRIPTION (this latter variable necessitate cmake 3.9):

project(mylib VERSION 1.0.1 DESCRIPTION "mylib description")

Declare a new library target. Please avoid the use of file(GLOB ...). This feature does not provide attended mastery of the compilation process. If you are lazy, copy-paste output of ls -1 sources/*.cpp :

add_library(mylib SHARED
    sources/animation.cpp
    sources/buffers.cpp
    [...]
)

Set VERSION property (optional but it is a good practice):

set_target_properties(mylib PROPERTIES VERSION ${PROJECT_VERSION})

You can also set SOVERSION to a major number of VERSION. So libmylib.so.1 will be a symlink to libmylib.so.1.0.0.

set_target_properties(mylib PROPERTIES SOVERSION 1)

Declare public API of your library. This API will be installed for the third-party application. It is a good practice to isolate it in your project tree (like placing it include/ directory). Notice that, private headers should not be installed and I strongly suggest to place them with the source files.

set_target_properties(mylib PROPERTIES PUBLIC_HEADER include/mylib.h)

If you work with subdirectories, it is not very convenient to include relative paths like "../include/mylib.h". So, pass a top directory in included directories:

target_include_directories(mylib PRIVATE .)

or

target_include_directories(mylib PRIVATE include)
target_include_directories(mylib PRIVATE src)

Create an install rule for your library. I suggest to use variables CMAKE_INSTALL_*DIR defined in GNUInstallDirs:

include(GNUInstallDirs)

And declare files to install:

install(TARGETS mylib
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})

You may also export a pkg-config file. This file allows a third-party application to easily import your library:

• with Makefile, see pkg-config
• with Autotools, see PKG_CHECK_MODULES
• with cmake, see pkg_check_modules

Create a template file named mylib.pc.in (see pc(5) manpage for more information):

prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=@CMAKE_INSTALL_PREFIX@
libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@

Name: @PROJECT_NAME@
Description: @PROJECT_DESCRIPTION@
Version: @PROJECT_VERSION@

Requires:
Libs: -L${libdir} -lmylib
Cflags: -I${includedir}

In your CMakeLists.txt, add a rule to expand @ macros (@ONLY ask to cmake to not expand variables of the form ${VAR}):

configure_file(mylib.pc.in mylib.pc @ONLY)

And finally, install generated file:

install(FILES ${CMAKE_BINARY_DIR}/mylib.pc DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig)

You may also use cmake EXPORT feature. However, this feature is only compatible with cmake and I find it difficult to use.

Finally the entire CMakeLists.txt should looks like:

cmake_minimum_required(VERSION 3.9)
project(mylib VERSION 1.0.1 DESCRIPTION "mylib description")
include(GNUInstallDirs)
add_library(mylib SHARED src/mylib.c)
set_target_properties(mylib PROPERTIES
    VERSION ${PROJECT_VERSION}
    SOVERSION 1
    PUBLIC_HEADER api/mylib.h)
configure_file(mylib.pc.in mylib.pc @ONLY)
target_include_directories(mylib PRIVATE .)
install(TARGETS mylib
    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
    PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(FILES ${CMAKE_BINARY_DIR}/mylib.pc
    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig)

Yes, CSS can do this:

input[type=checkbox] {_x000D_
  display: none;_x000D_
}_x000D_
input[type=checkbox] + *:before {_x000D_
  content: "";_x000D_
  display: inline-block;_x000D_
  margin: 0 0.4em;_x000D_
  /* Make some horizontal space. */_x000D_
  width: .6em;_x000D_
  height: .6em;_x000D_
  border-radius: 0.6em;_x000D_
  box-shadow: 0px 0px 0px .5px #888_x000D_
  /* An outer circle. */_x000D_
  ;_x000D_
  /* No inner circle. */_x000D_
  background-color: #ddd;_x000D_
  /* Inner color. */_x000D_
}_x000D_
input[type=checkbox]:checked + *:before {_x000D_
  box-shadow: 0px 0px 0px .5px #888_x000D_
  /* An outer circle. */_x000D_
  , inset 0px 0px 0px .14em #ddd;_x000D_
  /* An inner circle with above inner color.*/_x000D_
  background-color: #444;_x000D_
  /* The dot color */_x000D_
}

<div>_x000D_
  <input id="check1" type="checkbox" name="check" value="check1" checked>_x000D_
  <label for="check1">Fake Checkbox1</label>_x000D_
</div>_x000D_
<div>_x000D_
  <input id="check2" type="checkbox" name="check" value="check2">_x000D_
  <label for="check2">Fake Checkbox2</label>_x000D_
</div>_x000D_
<div>_x000D_
  <input id="check2" type="radio" name="check" value="radio1" checked>_x000D_
  <label for="check2">Real Checkbox1</label>_x000D_
</div>_x000D_
<div>_x000D_
  <input id="check2" type="radio" name="check" value="radio2">_x000D_
  <label for="check2">Real Checkbox2</label>_x000D_
</div>

This method will return the selected value for the drop down,

public static String getSelected_visibleText(WebDriver driver, String elementType, String value)
  {
    WebElement element = Webelement_Finder.webElement_Finder(driver, elementType, value);
   Select Selector = new Select(element);
    Selector.getFirstSelectedOption();
    String textval=Selector.getFirstSelectedOption().getText();
    return textval;
  }

Meanwhile

String textval=Selector.getFirstSelectedOption();

element.getText();

Will return all the elements in the drop down.

pybind11 minimal runnable example

pybind11 was previously mentioned at https://stackoverflow.com/a/38542539/895245 but I would like to give here a concrete usage example and some further discussion about implementation.

All and all, I highly recommend pybind11 because it is really easy to use: you just include a header and then pybind11 uses template magic to inspect the C++ class you want to expose to Python and does that transparently.

The downside of this template magic is that it slows down compilation immediately adding a few seconds to any file that uses pybind11, see for example the investigation done on this issue. PyTorch agrees. A proposal to remediate this problem has been made at: https://github.com/pybind/pybind11/pull/2445

Here is a minimal runnable example to give you a feel of how awesome pybind11 is:

class_test.cpp

#include <string>

#include <pybind11/pybind11.h>

struct ClassTest {
    ClassTest(const std::string &name) : name(name) { }
    void setName(const std::string &name_) { name = name_; }
    const std::string &getName() const { return name; }
    std::string name;
};

namespace py = pybind11;

PYBIND11_PLUGIN(class_test) {
    py::module m("my_module", "pybind11 example plugin");
    py::class_<ClassTest>(m, "ClassTest")
        .def(py::init<const std::string &>())
        .def("setName", &ClassTest::setName)
        .def("getName", &ClassTest::getName)
        .def_readwrite("name", &ClassTest::name);
    return m.ptr();
}

class_test_main.py

#!/usr/bin/env python3

import class_test

my_class_test = class_test.ClassTest("abc");
print(my_class_test.getName())
my_class_test.setName("012")
print(my_class_test.getName())
assert(my_class_test.getName() == my_class_test.name)

Compile and run:

#!/usr/bin/env bash
set -eux
g++ `python3-config --cflags` -shared -std=c++11 -fPIC class_test.cpp \
  -o class_test`python3-config --extension-suffix` `python3-config --libs`
./class_test_main.py

This example shows how pybind11 allows you to effortlessly expose the ClassTest C++ class to Python! Compilation produces a file named class_test.cpython-36m-x86_64-linux-gnu.so which class_test_main.py automatically picks up as the definition point for the class_test natively defined module.

Perhaps the realization of how awesome this is only sinks in if you try to do the same thing by hand with the native Python API, see for example this example of doing that, which has about 10x more code: https://github.com/cirosantilli/python-cheat/blob/4f676f62e87810582ad53b2fb426b74eae52aad5/py_from_c/pure.c On that example you can see how the C code has to painfully and explicitly define the Python class bit by bit with all the information it contains (members, methods, further metadata...). See also:

• Can python-C++ extension get a C++ object and call its member function?
• Exposing a C++ class instance to a python embedded interpreter
• A full and minimal example for a class (not method) with Python C Extension?
• Embedding Python in C++ and calling methods from the C++ code with Boost.Python
• Inheritance in Python C++ extension

pybind11 claims to be similar to Boost.Python which was mentioned at https://stackoverflow.com/a/145436/895245 but more minimal because it is freed from the bloat of being inside the Boost project:

pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code. Its goals and syntax are similar to the excellent Boost.Python library by David Abrahams: to minimize boilerplate code in traditional extension modules by inferring type information using compile-time introspection.

The main issue with Boost.Python—and the reason for creating such a similar project—is Boost. Boost is an enormously large and complex suite of utility libraries that works with almost every C++ compiler in existence. This compatibility has its cost: arcane template tricks and workarounds are necessary to support the oldest and buggiest of compiler specimens. Now that C++11-compatible compilers are widely available, this heavy machinery has become an excessively large and unnecessary dependency.

Think of this library as a tiny self-contained version of Boost.Python with everything stripped away that isn't relevant for binding generation. Without comments, the core header files only require ~4K lines of code and depend on Python (2.7 or 3.x, or PyPy2.7 >= 5.7) and the C++ standard library. This compact implementation was possible thanks to some of the new C++11 language features (specifically: tuples, lambda functions and variadic templates). Since its creation, this library has grown beyond Boost.Python in many ways, leading to dramatically simpler binding code in many common situations.

pybind11 is also the only non-native alternative hightlighted by the current Microsoft Python C binding documentation at: https://docs.microsoft.com/en-us/visualstudio/python/working-with-c-cpp-python-in-visual-studio?view=vs-2019 (archive).

Tested on Ubuntu 18.04, pybind11 2.0.1, Python 3.6.8, GCC 7.4.0.

if anyone cares there is a much better way to capture focus now, $(foo).focus(...)

http://api.jquery.com/focus/

Oh there are many differences you will need to consider

Views for selection:

1. Views provide abstraction over tables. You can add/remove fields easily in a view without modifying your underlying schema
2. Views can model complex joins easily.
3. Views can hide database-specific stuff from you. E.g. if you need to do some checks using Oracles SYS_CONTEXT function or many other things
4. You can easily manage your GRANTS directly on views, rather than the actual tables. It's easier to manage if you know a certain user may only access a view.
5. Views can help you with backwards compatibility. You can change the underlying schema, but the views can hide those facts from a certain client.

Views for insertion/updates:

1. You can handle security issues with views by using such functionality as Oracle's "WITH CHECK OPTION" clause directly in the view

Drawbacks

1. You lose information about relations (primary keys, foreign keys)
2. It's not obvious whether you will be able to insert/update a view, because the view hides its underlying joins from you

Another short version:

System.IO.File.WriteAllBytes(path, new byte[0]);

using Newtonsoft.Json;

Install this class in package console This class works fine in all .NET Versions, for example in my project: I have DNX 4.5.1 and DNX CORE 5.0 and everything works.

Firstly before JSON deserialization, you need to declare a class to read normally and store some data somewhere This is my class:

public class ToDoItem
{
    public string text { get; set; }
    public string complete { get; set; }
    public string delete { get; set; }
    public string username { get; set; }
    public string user_password { get; set; }
    public string eventID { get; set; }
}

In HttpContent section where you requesting data by GET request for example:

HttpContent content = response.Content;
string mycontent = await content.ReadAsStringAsync();
//deserialization in items
ToDoItem[] items = JsonConvert.DeserializeObject<ToDoItem[]>(mycontent);

This is just a more concise recap of F.J and MiniQuark great answers. All you need to achieve multiple simultaneous string replacements is the following function:

def multiple_replace(string, rep_dict):
    pattern = re.compile("|".join([re.escape(k) for k in sorted(rep_dict,key=len,reverse=True)]), flags=re.DOTALL)
    return pattern.sub(lambda x: rep_dict[x.group(0)], string)

Usage:

>>>multiple_replace("Do you like cafe? No, I prefer tea.", {'cafe':'tea', 'tea':'cafe', 'like':'prefer'})
'Do you prefer tea? No, I prefer cafe.'

If you wish, you can make your own dedicated replacement functions starting from this simpler one.

You need to use ng-disabled directive

<input data-ng-model="userInf.username" 
       class="span12 editEmail" 
       type="text" 
       placeholder="[email protected]" 
       pattern="[^@]+@[^@]+\.[a-zA-Z]{2,6}" 
       required 
       ng-disabled="<expression to disable>" />

I needed to just download a file onClick but I needed to run some logic to either fetch or compute the actual url where the file existed. I also did not want to use any anti-react imperative patterns like setting a ref and manually clicking it when I had the resource url. The declarative pattern I used was

onClick = () => {
  // do something to compute or go fetch
  // the url we need from the server
  const url = goComputeOrFetchURL();

  // window.location forces the browser to prompt the user if they want to download it
  window.location = url
}

render() {
  return (
    <Button onClick={ this.onClick } />
  );
}

I modified @Vartan's answer to make it work with Bootstrap 4.3. His solution doesn't work anymore with the latest version as target property always returns dropdown's root div no matter where the click was placed.

Here is the code:

$('.dropdown-keep-open').on('hide.bs.dropdown', function (e) {
  if (!e.clickEvent) {
    // There is no `clickEvent` property in the `e` object when the `button` (or any other trigger) is clicked. 
    // What we usually want to happen in such situations is to hide the dropdown so we let it hide. 
    return true;
  }

  var target = $(e.clickEvent.target);

  return !(target.hasClass('dropdown-keep-open') || target.parents('.dropdown-keep-open').length);
});

<div class="dropdown dropdown-keep-open">
  <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
    Dropdown button
  </button>
  <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
    <a class="dropdown-item" href="#">Action</a>
    <a class="dropdown-item" href="#">Another action</a>
    <a class="dropdown-item" href="#">Something else here</a>
  </div>
</div>

There is a css way of doing this using scroll-behavior. Add the following property.

    scroll-behavior: smooth;

And that is it. No JS required.

a {_x000D_
  display: inline-block;_x000D_
  width: 50px;_x000D_
  text-decoration: none;_x000D_
}_x000D_
nav, scroll-container {_x000D_
  display: block;_x000D_
  margin: 0 auto;_x000D_
  text-align: center;_x000D_
}_x000D_
nav {_x000D_
  width: 339px;_x000D_
  padding: 5px;_x000D_
  border: 1px solid black;_x000D_
}_x000D_
scroll-container {_x000D_
  display: block;_x000D_
  width: 350px;_x000D_
  height: 200px;_x000D_
  overflow-y: scroll;_x000D_
  scroll-behavior: smooth;_x000D_
}_x000D_
scroll-page {_x000D_
  display: flex;_x000D_
  align-items: center;_x000D_
  justify-content: center;_x000D_
  height: 100%;_x000D_
  font-size: 5em;_x000D_
}

<nav>_x000D_
  <a href="#page-1">1</a>_x000D_
  <a href="#page-2">2</a>_x000D_
  <a href="#page-3">3</a>_x000D_
</nav>_x000D_
<scroll-container>_x000D_
  <scroll-page id="page-1">1</scroll-page>_x000D_
  <scroll-page id="page-2">2</scroll-page>_x000D_
  <scroll-page id="page-3">3</scroll-page>_x000D_
</scroll-container>

PS: please check the browser compatibility.

It means 'not equal to'. So you're filtering out records where ordid is 605. Overall you're looking for any records which have the same prodid and qty values as those assigned to ordid 605, but which are for a different order.

I Had the same problem, and it was because the simulator somehow got in airplane mode, once this was disabled my App worked fine :-) I had tried everything, rebuild, clean+build and reboot android studio and reboot the computer, even reinstalling android studio..

While you can resolve this with a clean install (overriding any cached dependencies) as @Sanjeev-Gulgani suggests with mvn -U clean install

You can also simply remove the cached dependency that is causing the problem with

mvn dependency:purge-local-repository -DmanualInclude="groupId:artifactId"

See mvn docs for more info.

You can insert an image that looks like a button. Then attach a script to the image.

• INSERT menu
• Image

You can insert any image. The image can be edited in the spreadsheet

Image of a Button

Assign a function name to an image:

You can use curl or wget to retrieve the raw data, or you can use w3m -dump to have a nice text representation of a web page.

$ foo=$(w3m -dump http://www.example.com/); echo $foo
You have reached this web page by typing "example.com", "example.net","example.org" or "example.edu" into your web browser. These domain names are reserved for use in documentation and are not available for registration. See RFC 2606, Section 3.

Parsing is the division of text in to a set of parts or tokens.

I recently moved a site using SimplePie (http://simplepie.org/) from a server that was using PHP 5.2.17 to one that is using PHP 5.3.2. It was after this move that I began receiving a list of error messages such as this one:

Deprecated: Assigning the return value of new by reference is deprecated in .../php/simplepie.inc on line 738

After reviewing several discussions of this issue, I cleared things up by replacing all the instances of =& new with = new in the simplepie.inc file.

I'm not experienced enough to know if this will work in all instances where these error messages are received but it worked in this particular case and it may be worth trying.

          A PROGRAM TO CONVERT INT INTO ASCII.




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

           char data[1000]= {' '};           /*thing in the bracket is optional*/
           char data1[1000]={' '};
           int val, a;
           char varray [9];

           void binary (int digit)
          {
              if(digit==0)
               val=48;
              if(digit==1)
               val=49;
              if(digit==2)
               val=50;
              if(digit==3)
               val=51;
              if(digit==4)
               val=52;
              if(digit==5)
               val=53;
              if(digit==6)
               val=54;
              if(digit==7)
               val=55;
              if(digit==8)
               val=56;
              if(digit==9)
                val=57;
                a=0;

           while(val!=0)
           {
              if(val%2==0)
               {
                varray[a]= '0';
               }

               else
               varray[a]='1';
               val=val/2;
               a++;
           }


           while(a!=7)
          {
            varray[a]='0';
            a++;
           }


          varray [8] = NULL;
          strrev (varray);
          strcpy (data1,varray);
          strcat (data1,data);
          strcpy (data,data1);

         }


          void main()
         {
           int num;
           clrscr();
           printf("enter number\n");
           scanf("%d",&num);
           if(num==0)
           binary(0);
           else
           while(num>0)
           {
           binary(num%10);
           num=num/10;
           }
           puts(data);
           getch();

           }

I check my coding and its working good.let me know if its helpful.thanks.

public static class DbEx {
    public static IEnumerable<T> SqlQueryPrm<T>(this System.Data.Entity.Database database, string sql, object parameters) {
        using (var tmp_cmd = database.Connection.CreateCommand()) {
            var dict = ToDictionary(parameters);
            int i = 0;
            var arr = new object[dict.Count];
            foreach (var one_kvp in dict) {
                var param = tmp_cmd.CreateParameter();
                param.ParameterName = one_kvp.Key;
                if (one_kvp.Value == null) {
                    param.Value = DBNull.Value;
                } else {
                    param.Value = one_kvp.Value;
                }
                arr[i] = param;
                i++;
            }
            return database.SqlQuery<T>(sql, arr);
        }
    }
    private static IDictionary<string, object> ToDictionary(object data) {
        var attr = System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance;
        var dict = new Dictionary<string, object>();
        foreach (var property in data.GetType().GetProperties(attr)) {
            if (property.CanRead) {
                dict.Add(property.Name, property.GetValue(data, null));
            }
        }
        return dict;
    }
}

Usage:

var names = db.Database.SqlQueryPrm<string>("select name from position_category where id_key=@id_key", new { id_key = "mgr" }).ToList();

I know it's not XAML, but I did the same thing with SizeChanged event of the textbox:

private void TextBlock_SizeChanged(object sender, SizeChangedEventArgs e)
{
   TextBlock textBlock = sender as TextBlock;
   FrameworkElement element = textBlock.Parent as FrameworkElement;
   textBlock.Margin = new Thickness(0, 0, (element.ActualWidth / 100) * 20, 0);
}

The textbox appears to be 80% size of its parent (well right side margin is 20%) and stretches when needed.

I tried this code. it's worked for me.

NSMutableString * myString=[[NSMutableString alloc]init];
myString=[myString stringByAppendingString:@"first value"];
myString=[myString stringByAppendingString:@"second string"];

One thing you need to realize is in Ruby everything is an object. Given that, if you don't define your methods within Module or Class, Ruby will put it within the Object class. So, your code will be local to the Object scope.

A typical approach on Object Oriented Programming is encapsulate all logic within a class:

class Point
  attr_accessor :x, :y

  # If we don't specify coordinates, we start at 0.
  def initialize(x = 0, y = 0)
    # Notice that `@` indicates instance variables.
    @x = x
    @y = y
  end

  # Here we override the `+' operator.
  def +(point)
    Point.new(self.x + point.x, self.y + point.y)
  end

  # Here we draw the point.
  def draw(offset = nil)
    if offset.nil?
      new_point = self
    else
      new_point = self + offset 
    end
    new_point.draw_absolute
  end

  def draw_absolute
    puts "x: #{self.x}, y: #{self.y}"
  end
end

first_point = Point.new(100, 200)
second_point = Point.new(3, 4)

second_point.draw(first_point)

Hope this clarifies a bit.

As of npm 2.x, you can pass args into run-scripts by separating with --

Terminal

npm run-script start -- --foo=3

Package.json

"start": "node ./index.js"

Index.js

console.log('process.argv', process.argv);

All good answers, but there's one more to look out for...

(Particularly when creating a UITableView programmatically)

Make sure the tableView can respond to selection by setting [tableView setAllowsSelection:YES]; or removing any line that sets it to NO.

When you have a copy of an object the [checked] attribute might not work, in that case, you can use (change) in this way:

        <input type="checkbox" [checked]="item.selected" (change)="item.selected = !item.selected">

As delnan pointed out, the match keyword in Scala has nothing to do with regexes. To find out whether a string matches a regex, you can use the String.matches method. To find out whether a string starts with an a, b or c in lower or upper case, the regex would look like this:

word.matches("[a-cA-C].*")

You can read this regex as "one of the characters a, b, c, A, B or C followed by anything" (. means "any character" and * means "zero or more times", so ".*" is any string).

Description

Assuming i understand your question.

You can get the selected row using the DataGridView.SelectedRows Collection. If your DataGridView allows only one selected, have a look at my sample.

DataGridView.SelectedRows Gets the collection of rows selected by the user.

Sample

if (dataGridView1.SelectedRows.Count != 0)
{
    DataGridViewRow row = this.dataGridView1.SelectedRows[0];
    row.Cells["ColumnName"].Value
}

More Information

• MSDN - DataGridView.SelectedRows Property

Adding to @pranay-rana's list:

Third way is:

function passFromValue(){
    var x = 15;
    return x;  
}
function passToValue() {
    var y = passFromValue();
    console.log(y);//15
}
passToValue(); 

Apart from the other already mentioned valid use cases std::weak_ptr is an awesome tool in a multithreaded environment, because

• It doesn't own the object and so can't hinder deletion in a different thread
• std::shared_ptr in conjunction with std::weak_ptr is safe against dangling pointers - in opposite to std::unique_ptr in conjunction with raw pointers
• std::weak_ptr::lock() is an atomic operation (see also About thread-safety of weak_ptr)

Consider a task to load all images of a directory (~10.000) simultaneously into memory (e.g. as a thumbnail cache). Obviously the best way to do this is a control thread, which handles and manages the images, and multiple worker threads, which load the images. Now this is an easy task. Here's a very simplified implementation (join() etc is omitted, the threads would have to be handled differently in a real implementation etc)

// a simplified class to hold the thumbnail and data
struct ImageData {
  std::string path;
  std::unique_ptr<YourFavoriteImageLibData> image;
};

// a simplified reader fn
void read( std::vector<std::shared_ptr<ImageData>> imagesToLoad ) {
   for( auto& imageData : imagesToLoad )
     imageData->image = YourFavoriteImageLib::load( imageData->path );
}

// a simplified manager
class Manager {
   std::vector<std::shared_ptr<ImageData>> m_imageDatas;
   std::vector<std::unique_ptr<std::thread>> m_threads;
public:
   void load( const std::string& folderPath ) {
      std::vector<std::string> imagePaths = readFolder( folderPath );
      m_imageDatas = createImageDatas( imagePaths );
      const unsigned numThreads = std::thread::hardware_concurrency();
      std::vector<std::vector<std::shared_ptr<ImageData>>> splitDatas = 
        splitImageDatas( m_imageDatas, numThreads );
      for( auto& dataRangeToLoad : splitDatas )
        m_threads.push_back( std::make_unique<std::thread>(read, dataRangeToLoad) );
   }
};

But it becomes much more complicated, if you want to interrupt the loading of the images, e.g. because the user has chosen a different directory. Or even if you want to destroy the manager.

You'd need thread communication and have to stop all loader threads, before you may change your m_imageDatas field. Otherwise the loaders would carry on loading until all images are done - even if they are already obsolete. In the simplified example, that wouldn't be too hard, but in a real environment things can be much more complicated.

The threads would probably be part of a thread pool used by multiple managers, of which some are being stopped, and some aren't etc. The simple parameter imagesToLoad would be a locked queue, into which those managers push their image requests from different control threads with the readers popping the requests - in an arbitrary order - at the other end. And so the communication becomes difficult, slow and error-prone. A very elegant way to avoid any additional communication in such cases is to use std::shared_ptr in conjunction with std::weak_ptr.

// a simplified reader fn
void read( std::vector<std::weak_ptr<ImageData>> imagesToLoad ) {
   for( auto& imageDataWeak : imagesToLoad ) {
     std::shared_ptr<ImageData> imageData = imageDataWeak.lock();
     if( !imageData )
        continue;
     imageData->image = YourFavoriteImageLib::load( imageData->path );
   }
}

// a simplified manager
class Manager {
   std::vector<std::shared_ptr<ImageData>> m_imageDatas;
   std::vector<std::unique_ptr<std::thread>> m_threads;
public:
   void load( const std::string& folderPath ) {
      std::vector<std::string> imagePaths = readFolder( folderPath );
      m_imageDatas = createImageDatas( imagePaths );
      const unsigned numThreads = std::thread::hardware_concurrency();
      std::vector<std::vector<std::weak_ptr<ImageData>>> splitDatas = 
        splitImageDatasToWeak( m_imageDatas, numThreads );
      for( auto& dataRangeToLoad : splitDatas )
        m_threads.push_back( std::make_unique<std::thread>(read, dataRangeToLoad) );
   }
};

This implementation is nearly as easy as the first one, doesn't need any additional thread communication, and could be part of a thread pool/queue in a real implementation. Since the expired images are skipped, and non-expired images are processed, the threads never would have to be stopped during normal operation. You could always safely change the path or destroy your managers, since the reader fn checks, if the owning pointer isn't expired.

Or, you could be doing what I did and define the logger before the log configuration file has been loaded. This would be as they say: "Putting the cart before the horse."

In the code:

public static Logger logger = Logger.getLogger("RbReport");

... later on

PropertyConfigurator.configure(l4j);
logger = Logger.getLogger("RbReport");

Fix was to initialize the logger after the configuration was loaded.

For the geeks it was "Putting Descarte b4 d horse".

This isn't as straightforward as opening a plain text file and will require some sort of external module since nothing is built-in to do this. Here are some options:

http://www.python-excel.org/

If possible, you may want to consider exporting the excel spreadsheet as a CSV file and then using the built-in python csv module to read it:

http://docs.python.org/library/csv.html

The dynamic way of implement whereNotIn:

 $users = User::where('status',0)->get();
    foreach ($users as $user) {
                $data[] = $user->id;
            }
    $available = User::orderBy('name', 'DEC')->whereNotIn('id', $data)->get();

create a textbox:

 <TextBox Name="tb">
 ..hello..
</TextBox>

focus() ---> it is used to set input focus to the textbox control

tb.focus()

map doesn't relate to a Cartesian product at all, although I imagine someone well versed in functional programming could come up with some impossible to understand way of generating a one using map.

map in Python 3 is equivalent to this:

def map(func, iterable):
    for i in iterable:
        yield func(i)

and the only difference in Python 2 is that it will build up a full list of results to return all at once instead of yielding.

Although Python convention usually prefers list comprehensions (or generator expressions) to achieve the same result as a call to map, particularly if you're using a lambda expression as the first argument:

[func(i) for i in iterable]

As an example of what you asked for in the comments on the question - "turn a string into an array", by 'array' you probably want either a tuple or a list (both of them behave a little like arrays from other languages) -

 >>> a = "hello, world"
 >>> list(a)
['h', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd']
>>> tuple(a)
('h', 'e', 'l', 'l', 'o', ',', ' ', 'w', 'o', 'r', 'l', 'd')

A use of map here would be if you start with a list of strings instead of a single string - map can listify all of them individually:

>>> a = ["foo", "bar", "baz"]
>>> list(map(list, a))
[['f', 'o', 'o'], ['b', 'a', 'r'], ['b', 'a', 'z']]

Note that map(list, a) is equivalent in Python 2, but in Python 3 you need the list call if you want to do anything other than feed it into a for loop (or a processing function such as sum that only needs an iterable, and not a sequence). But also note again that a list comprehension is usually preferred:

>>> [list(b) for b in a]
[['f', 'o', 'o'], ['b', 'a', 'r'], ['b', 'a', 'z']]

Here's what I did in my values/themes.xml

    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="buttonStyle">@style/MyButton</item>
    </style>

    <style name="MyButton" parent="Widget.AppCompat.Button">
        <item name="android:textAllCaps">false</item>
    </style>

You can use numpy's slicing, simply start:stop:step.

>>> xs
array([1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4])
>>> xs[1::4]
array([2, 2, 2])

This creates a view of the the original data, so it's constant time. It'll also reflect changes to the original array and keep the whole original array in memory:

>>> a
array([1, 2, 3, 4, 5])
>>> b = a[::2]         # O(1), constant time
>>> b[:] = 0           # modifying the view changes original array
>>> a                  # original array is modified
array([0, 2, 0, 4, 0])

so if either of the above things are a problem, you can make a copy explicitly:

>>> a
array([1, 2, 3, 4, 5])
>>> b = a[::2].copy()  # explicit copy, O(n)
>>> b[:] = 0           # modifying the copy
>>> a                  # original is intact
array([1, 2, 3, 4, 5])

This isn't constant time, but the result isn't tied to the original array. The copy also contiguous in memory, which can make some operations on it faster.

For pages that rely on external CSS (most pages nowadays) a simple and reliable solution is to kill the head element:

document.querySelector("head").remove();

Right-click this page (in Chrome/Firefox), select Inspect, paste the code in the devtools console and press Enter.

A bookmarklet version of the same code that you can paste as the URL of a bookmark:

javascript:(function(){document.querySelector("head").remove();})()

Now clicking the bookmark on in your Favorites bar will show the page without any css stylesheets.

Removing the head will not work for pages that use inline styles.

If you happen to use Safari on MacOS then:

1. Open Safari Preferences (cmd+,) and in the Advanced tab enable the checkbox "Show Develop menu in menu bar".
2. Now under the Develop menu you will find a Disable Styles option.

The default generator for Windows seems to be set to NMAKE. Try to use:

cmake -G "MinGW Makefiles"

Or use the GUI, and select MinGW Makefiles when prompted for a generator. Don't forget to cleanup the directory where you tried to run CMake, or delete the cache in the GUI. Otherwise, it will try again with NMAKE.

ColumnNames is a property of type List<String> so when you are setting up you need to pass a List<String> in the Returns call as an argument (or a func which return a List<String>)

But with this line you are trying to return just a string

input.SetupGet(x => x.ColumnNames).Returns(temp[0]);

which is causing the exception.

Change it to return whole list:

input.SetupGet(x => x.ColumnNames).Returns(temp);

Here I copy paste some of the information that I have collected

Key A key is a single or combination of multiple fields. Its purpose is to access or retrieve data rows from table according to the requirement. The keys are defined in tables to access or sequence the stored data quickly and smoothly. They are also used to create links between different tables.

Types of Keys

Primary Key The attribute or combination of attributes that uniquely identifies a row or record in a relation is known as primary key.

Secondary key A field or combination of fields that is basis for retrieval is known as secondary key. Secondary key is a non-unique field. One secondary key value may refer to many records.

Candidate Key or Alternate key A relation can have only one primary key. It may contain many fields or combination of fields that can be used as primary key. One field or combination of fields is used as primary key. The fields or combination of fields that are not used as primary key are known as candidate key or alternate key.

Composite key or concatenate key A primary key that consists of two or more attributes is known as composite key.

Sort Or control key A field or combination of fields that is used to physically sequence the stored data called sort key. It is also known s control key.

A superkey is a combination of attributes that can be uniquely used to identify a database record. A table might have many superkeys. Candidate keys are a special subset of superkeys that do not have any extraneous information in them.

Example for super key: Imagine a table with the fields <Name>, <Age>, <SSN> and <Phone Extension>. This table has many possible superkeys. Three of these are <SSN>, <Phone Extension, Name> and <SSN, Name>. Of those listed, only <SSN> is a candidate key, as the others contain information not necessary to uniquely identify records.

Foreign Key A foreign key is an attribute or combination of attribute in a relation whose value match a primary key in another relation. The table in which foreign key is created is called as dependent table. The table to which foreign key is refers is known as parent table.

Answer for 1.:

You should be able to manually build an expression tree that can be passed into OrderBy using the name as a string. Or you could use reflection as suggested in another answer, which might be less work.

Edit: Here is a working example of building an expression tree manually. (Sorting on X.Value, when only knowing the name "Value" of the property). You could (should) build a generic method for doing it.

using System;
using System.Linq;
using System.Linq.Expressions;

class Program
{
    private static readonly Random rand = new Random();
    static void Main(string[] args)
    {
        var randX = from n in Enumerable.Range(0, 100)
                    select new X { Value = rand.Next(1000) };

        ParameterExpression pe = Expression.Parameter(typeof(X), "value");
        var expression = Expression.Property(pe, "Value");
        var exp = Expression.Lambda<Func<X, int>>(expression, pe).Compile();

        foreach (var n in randX.OrderBy(exp))
            Console.WriteLine(n.Value);
    }

    public class X
    {
        public int Value { get; set; }
    }
}

Building an expression tree requires you to know the particpating types, however. That might or might not be a problem in your usage scenario. If you don't know what type you should be sorting on, it will propably be easier using reflection.

Answer for 2.:

Yes, since Comparer<T>.Default will be used for the comparison, if you do not explicitly define the comparer.

Here is an alternative that worked for me:

$('div#somediv').css({'width': '70%'});

@Alwin Doss You should provide the -L option before -l. You would have done the other way round probably. Try this :)

From Oracle's java tutorial

import java.net.*;
import java.io.*;

public class URLConnectionReader {
    public static void main(String[] args) throws Exception {
        URL yahoo = new URL("http://www.yahoo.com/");
        URLConnection yc = yahoo.openConnection();
        BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                yc.getInputStream()));
        String inputLine;

        while ((inputLine = in.readLine()) != null) 
            System.out.println(inputLine);
        in.close();
    }
}

HashMap has a putAll method.

http://download.oracle.com/javase/6/docs/api/java/util/HashMap.html

Replacing one string with another can be done in the below methods

Method 1: Using String replaceAll

 String myInput = "HelloBrother";
 String myOutput = myInput.replaceAll("HelloBrother", "Brother"); // Replace hellobrother with brother
 ---OR---
 String myOutput = myInput.replaceAll("Hello", ""); // Replace hello with empty
 System.out.println("My Output is : " +myOutput);       

Method 2: Using Pattern.compile

 import java.util.regex.Pattern;
 String myInput = "JAVAISBEST";
 String myOutputWithRegEX = Pattern.compile("JAVAISBEST").matcher(myInput).replaceAll("BEST");
 ---OR -----
 String myOutputWithRegEX = Pattern.compile("JAVAIS").matcher(myInput).replaceAll("");
 System.out.println("My Output is : " +myOutputWithRegEX);           

Method 3: Using Apache Commons as defined in the link below:

http://commons.apache.org/proper/commons-lang/javadocs/api-z.1/org/apache/commons/lang3/StringUtils.html#replace(java.lang.String, java.lang.String, java.lang.String)

REFERENCE

There is no $contains operator in mongodb.

You can use the answer from JohnnyHK as that works. The closest analogy to contains that mongo has is $in, using this your query would look like:

PersonModel.find({ favouriteFoods: { "$in" : ["sushi"]} }, ...);

It's a C heritage, in C, if you do :

enum TokenType
{
    blah1   = 0x00000000,
    blah2   = 0X01000000,
    blah3   = 0X02000000
};

you'll have to use it doing something like :

enum TokenType foo;

But if you do this :

typedef enum e_TokenType
{
    blah1   = 0x00000000,
    blah2   = 0X01000000,
    blah3   = 0X02000000
} TokenType;

You'll be able to declare :

TokenType foo;

But in C++, you can use only the former definition and use it as if it were in a C typedef.

I recently run into this problem, when trying to count using case when, and found that changing the order of the which and count statements fixes the problem:

SELECT date(dateday) as pick_day,
COUNT(CASE WHEN (apples = 'TRUE' OR oranges 'TRUE') THEN fruit END)  AS fruit_counter

FROM pickings

GROUP BY 1

Instead of using - in the latter, where I got errors that apples and oranges should appear in aggregate functions

CASE WHEN ((apples = 'TRUE' OR oranges 'TRUE') THEN COUNT(*) END) END AS fruit_counter

You can force the cell to commit the value as soon as you click the checkbox and then catch the CellValueChanged event. The CurrentCellDirtyStateChanged fires as soon as you click the checkbox.

The following code works for me:

private void grid_CurrentCellDirtyStateChanged(object sender, EventArgs e)
    {
        SendKeys.Send("{tab}");
    }

You can then insert your code in the CellValueChanged event.

You should be able to adjust the width using the .modal-dialog class selector (in conjunction with media queries or whatever strategy you're using for responsive design):

.modal-dialog {
    width: 400px;
}

Try this,

string Date = datePicker1.SelectedDate.Value.ToString("dd-MMM-yyyy");

It worked for me the output format will be '02-May-2016'

Add this property to your grid-view : ShowHeaderWhenEmpty="True" it might help just check

At https://github.com/golang/go/issues/44196 randall77 suggested

time.Now().Sub(time.Unix(0,0)).Milliseconds()

which exploits the fact that Go's time.Duration already have Milliseconds method.

iOS7 has new interface rules, so It's better to keep at least the back arrow when you push a UIView. It's very easy to change the "back" text programmatically. Just add this code before push the view (Or prepareForSegue if you are using StoryBoards):

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
      self.navigationItem.backBarButtonItem=[[UIBarButtonItem alloc] initWithTitle:@"NEW TITLE" style:UIBarButtonItemStylePlain target:nil action:nil];
}

This will change the default "Back" text, but will keep the iOS7 styled back arrow. You can also change the tint color for the back arrow before push the view:

- (void)viewDidLoad{
     //NavBar background color:
     self.navigationController.navigationBar.barTintColor=[UIColor redColor];
//NavBar tint color for elements:
     self.navigationController.navigationBar.tintColor=[UIColor whiteColor];
}

Hope this helps you!

In App.Xaml.Cs:

MainPage = new NavigationPage( new YourPage());

When you wish to navigate from YourPage to the next page you do:

await Navigation.PushAsync(new YourSecondPage());

You can read more about Xamarin Forms navigation here: https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/navigation/hierarchical

Microsoft has quite good docs on this.

There is also the newer concept of the Shell. It allows for a new way of structuring your application and simplifies navigation in some cases.

Intro: https://devblogs.microsoft.com/xamarin/shell-xamarin-forms-4-0-getting-started/

Video on basics of Shell: https://www.youtube.com/watch?v=0y1bUAcOjZY&t=3112s

Docs: https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/shell/

If the legend is the same for both plots, there is a simple solution using grid.arrange(assuming you want your legend to align with both plots either vertically or horizontally). Simply keep the legend for the bottom-most or right-most plot while omitting the legend for the other. Adding a legend to just one plot, however, alters the size of one plot relative to the other. To avoid this use the heights command to manually adjust and keep them the same size. You can even use grid.arrange to make common axis titles. Note that this will require library(grid) in addition to library(gridExtra). For vertical plots:

y_title <- expression(paste(italic("E. coli"), " (CFU/100mL)"))

grid.arrange(arrangeGrob(p1, theme(legend.position="none"), ncol=1), 
   arrangeGrob(p2, theme(legend.position="bottom"), ncol=1), 
   heights=c(1,1.2), left=textGrob(y_title, rot=90, gp=gpar(fontsize=20)))

Here is the result for a similar graph for a project I was working on:

Seems someone have done it by patching the kernel. I just came across a paper titled "Exploiting Smart-Phone USB Connectivity For Fun And Profit" by Angelos Stavrou, Zhaohui Wang, Computer Science Department George Mason University, Fairfax, VA. (available freely by googling the above title). Here the two researchers are investigating the possibility of a compromised android device controlling the attached PC by having the android device presenting itself as an HID device (keyboard). As a proof of concept, it seems that they have successfully patched a kernel doing exactly what you want. They didn't provide detailed steps but anyway I just quote what they said they've done:

.....we developed a special USB gadget driver in addition to existing USB composite interface on the Android Linux kernel using the USB Gadget API for Linux[4]. The UGAL framework helped us implement a simple USB Human Interface Driver (HID) functionality (i.e. device driver) and the glue code between the various kernel APIs. Using the code provided in: “drivers/usb/gadget/composite.c”, we created our own gadget driver as an additional composite USB interface. This driver simulates a USB keyboard device. We can also simulate a USB mouse device sending pre-programmed input command to the desktop system. Therefore, it is straightforward to pose as a normal USB mouse or keyboard device and send predefined command stealthily to simulate malicious interactive user activities. To verify this functionality, in our controlled experiments, we send keycode sequences to perform non-fatal operations and show how such a manipulated device can cause damages In particular, we simulated a Dell USB keyboard (vendorID=413C, productID=2105) sending ”CTRL+ESC” key combination and ”U” and ”Enter” key sequence to reboot the machine. Notice that this only requires USB connection and can gain the ”current user” privilege on the desktop system. With the additional local or remote exploit sent as payload, the malware can escalate the privilege and gain full access of the desktop system.

Little more about XPath axes

Lets say we have below HTML structure:

<div class="third_level_ancestor">
    <nav class="second_level_ancestor">
        <div class="parent">
            <span>Child</span>
        </div>
    </nav>
</div>

1. //span/parent::* - returns any element which is direct parent.

In this case output is <div class="parent">

2. //span/parent::div[@class="parent"] - returns parent element only of exact node type and only if specified predicate is True.

Output: <div class="parent">

3. //span/ancestor::* - returns all ancestors (including parent).

Output: <div class="parent">, <nav class="second_level_ancestor">, <div class="third_level_ancestor">...

4. //span/ancestor-or-self::* - returns all ancestors and current element itself.

Output: <span>Child</span>, <div class="parent">, <nav class="second_level_ancestor">, <div class="third_level_ancestor">...

5. //span/ancestor::div[2] - returns second ancestor (starting from parent) of type div.

Output: <div class="third_level_ancestor">

As alternative you can use insertAdjacentHTML - however I dig into and make some performance tests - (2019.09.13 Friday) MacOs High Sierra 10.13.6 on Chrome 76.0.3809 (64-bit), Safari 12.1.2 (13604.5.6), Firefox 69.0.0 (64-bit) ). The test F is only for reference - it is out of the question scope because we need to insert dynamically html - but in F I do it by 'hand' (in static way) - theoretically (as far I know) this should be the fastest way to insert new html elements.

SUMMARY

• The A innerHTML = (do not confuse with +=) is fastest (Safari 48k operations per second, Firefox 43k op/sec, Chrome 23k op/sec) The A is ~31% slower than ideal solution F only chrome but on safari and firefox is faster (!)
• The B innerHTML +=... is slowest on all browsers (Chrome 95 op/sec, Firefox 88 op/sec, Sfari 84 op/sec)
• The D jQuery is second slow on all browsers (Safari 14 op/sec, Firefox 11k op/sec, Chrome 7k op/sec)
• The reference solution F (theoretically fastest) is not fastest on firefox and safari (!!!) - which is surprising
• The fastest browser was Safari

More info about why innerHTML = is much faster than innerHTML += is here. You can perform test on your machine/browser HERE

let html = "<div class='box'>Hello <span class='msg'>World</span> !!!</div>"_x000D_
_x000D_
function A() {    _x000D_
  container.innerHTML = `<div id="A_oiio">A: ${html}</div>`;_x000D_
}_x000D_
_x000D_
function B() {    _x000D_
  container.innerHTML += `<div id="B_oiio">B: ${html}</div>`;_x000D_
}_x000D_
_x000D_
function C() {    _x000D_
  container.insertAdjacentHTML('beforeend', `<div id="C_oiio">C: ${html}</div>`);_x000D_
}_x000D_
_x000D_
function D() {    _x000D_
  $('#container').append(`<div id="D_oiio">D: ${html}</div>`);_x000D_
}_x000D_
_x000D_
function E() {_x000D_
  let d = document.createElement("div");_x000D_
  d.innerHTML = `E: ${html}`;_x000D_
  d.id = 'E_oiio';_x000D_
  container.appendChild(d);_x000D_
}_x000D_
_x000D_
function F() {    _x000D_
  let dm = document.createElement("div");_x000D_
  dm.id = "F_oiio";_x000D_
  dm.appendChild(document.createTextNode("F: "));_x000D_
_x000D_
  let d = document.createElement("div");_x000D_
  d.classList.add('box');_x000D_
  d.appendChild(document.createTextNode("Hello "));_x000D_
  _x000D_
  let s = document.createElement("span");_x000D_
  s.classList.add('msg');_x000D_
  s.appendChild(document.createTextNode("World"));_x000D_
_x000D_
  d.appendChild(s);_x000D_
  d.appendChild(document.createTextNode(" !!!"));_x000D_
  dm.appendChild( d );_x000D_
  _x000D_
  container.appendChild(dm);_x000D_
}_x000D_
_x000D_
_x000D_
A();_x000D_
B();_x000D_
C();_x000D_
D();_x000D_
E();_x000D_
F();

.warr { color: red } .msg { color: blue } .box {display: inline}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<div class="warr">This snippet only for show code used in test (in jsperf.com) - it not perform test itself. </div>_x000D_
<div id="container"></div>

That query is failing and returning false.

Put this after mysqli_query() to see what's going on.

if (!$check1_res) {
    printf("Error: %s\n", mysqli_error($con));
    exit();
}

For more information:

http://www.php.net/manual/en/mysqli.error.php

If you are using python3 on windows then you might do this as well

pip3 install tensorflow==1.4

you may select any version from "(from versions: 1.2.0rc2, 1.2.0, 1.2.1, 1.3.0rc0, 1.3.0rc1, 1.3.0rc2, 1.3.0, 1.4.0rc0, 1.4.0rc1, 1.4.0, 1.5.0rc0, 1.5.0rc1, 1.5.0, 1.5.1, 1.6.0rc0, 1.6.0rc1, 1.6.0, 1.7.0rc0, 1.7.0rc1, 1.7.0)"

I did this when I wanted to downgrade from 1.7 to 1.4

Use ng-click in place of onclick. and its as simple as that:

<a href="www.mysite.com" ng-click="return theFunction();">Item</a>

<script type="text/javascript">
function theFunction () {
    // return true or false, depending on whether you want to allow 
    // the`href` property to follow through or not
 }
</script>

I my case, the button was working for two of 8 links. My solution was

$("body,html,document").animate({scrollTop:$("#myLocation").offset().top},2500);

This created a nice scroll effect as well

Taking @Ants Aasmas answer one step further, you can create a wrapper that takes any method call and forwards it to all elements of a given list:

class AllOf:
    def __init__(self, elements):
        self.elements = elements
    def __getattr__(self, attr):
        def on_all(*args, **kwargs):
            for obj in self.elements:
                getattr(obj, attr)(*args, **kwargs)
        return on_all

That class can then be used like this:

class Foo:
    def __init__(self, val="quux!"):
        self.val = val
    def foo(self):
        print "foo: " + self.val

a = [ Foo("foo"), Foo("bar"), Foo()]
AllOf(a).foo()

Which produces the following output:

foo: foo
foo: bar
foo: quux!

With some work and ingenuity it could probably be enhanced to handle attributes as well (returning a list of attribute values).

empty is an operator:

The empty operator is a prefix operation that can be used to determine whether a value is null or empty.

<c:if test="${empty myObject.featuresList}">

I happened to encounter this similar SSL problem a few days ago. The problem is your npm does not set root certificate for the certificate used by https://registry.npmjs.org.

Solutions:

1. Use wget https://registry.npmjs.org/coffee-script --ca-certificate=./DigiCertHighAssuranceEVRootCA.crt to fix wget problem
2. Use npm config set cafile /path/to/DigiCertHighAssuranceEVRootCA.crt to set root certificate for your npm program.

you can download root certificate from : https://www.digicert.com/CACerts/DigiCertHighAssuranceEVRootCA.crt

Notice: Different program may use different way of managing root certificate, so do not mix browser's with others.

Analysis:

let's fix your wget https://registry.npmjs.org/coffee-script problem first. your snippet says:

        ERROR: cannot verify registry.npmjs.org's certificate,
        issued by /C=US/ST=CA/L=Oakland/O=npm/OU=npm 
       Certificate Authority/CN=npmCA/[email protected]:
       Unable to locally verify the issuer's authority.

This means that your wget program cannot verify https://registry.npmjs.org's certificate. There are two reasons that may cause this problem:

1. Your wget program does not have this domain's root certificate. The root certificate usually ship with system.
2. The domain does not pack root certificate into his certificate.

So the solution is explicitly set root certificate for https://registry.npmjs.org. We can use openssl to make sure that the reason bellow is the problem.

Try openssl s_client -host registry.npmjs.org -port 443 on the command line and we will get this message (first several lines):

    CONNECTED(00000003)
    depth=1 /C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
    verify error:num=20:unable to get local issuer certificate
    verify return:0
    ---
    Certificate chain
     0 s:/C=US/ST=California/L=San Francisco/O=Fastly, Inc./CN=a.sni.fastly.net
       i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
     1 s:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance CA-3
       i:/C=US/O=DigiCert Inc/OU=www.digicert.com/CN=DigiCert High Assurance EV Root CA
    ---

This line verify error:num=20:unable to get local issuer certificate makes sure that https://registry.npmjs.org does not pack root certificate. So we Google DigiCert High Assurance EV Root CA root Certificate.

The version of EnterpriseLibrary on my machine had other parameters. This was working:

        SqlParameter retval = new SqlParameter("@ReturnValue", System.Data.SqlDbType.Int);
        retval.Direction = System.Data.ParameterDirection.ReturnValue;
        cmd.Parameters.Add(retval);
        db.ExecuteNonQuery(cmd);
        object o = cmd.Parameters["@ReturnValue"].Value;

You can use a Custom SuccessHandler extending SimpleUrlAuthenticationSuccessHandler for redirecting users to different URLs when login according to their assigned roles.

CustomSuccessHandler class provides custom redirect functionality:

package com.mycompany.uomrmsweb.configuration;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.authentication.SimpleUrlAuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

@Component
public class CustomSuccessHandler extends SimpleUrlAuthenticationSuccessHandler{

    private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

    @Override
    protected void handle(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException {
        String targetUrl = determineTargetUrl(authentication);

        if (response.isCommitted()) {
            System.out.println("Can't redirect");
            return;
        }

        redirectStrategy.sendRedirect(request, response, targetUrl);
    }

    protected String determineTargetUrl(Authentication authentication) {
        String url="";

        Collection<? extends GrantedAuthority> authorities =  authentication.getAuthorities();

        List<String> roles = new ArrayList<String>();

        for (GrantedAuthority a : authorities) {
            roles.add(a.getAuthority());
        }

        if (isStaff(roles)) {
            url = "/staff";
        } else if (isAdmin(roles)) {
            url = "/admin";
        } else if (isStudent(roles)) {
            url = "/student";
        }else if (isUser(roles)) {
            url = "/home";
        } else {
            url="/Access_Denied";
        }

        return url;
    }

    public void setRedirectStrategy(RedirectStrategy redirectStrategy) {
        this.redirectStrategy = redirectStrategy;
    }
    protected RedirectStrategy getRedirectStrategy() {
        return redirectStrategy;
    }

    private boolean isUser(List<String> roles) {
        if (roles.contains("ROLE_USER")) {
            return true;
        }
        return false;
    }

    private boolean isStudent(List<String> roles) {
        if (roles.contains("ROLE_Student")) {
            return true;
        }
        return false;
    }

    private boolean isAdmin(List<String> roles) {
        if (roles.contains("ROLE_SystemAdmin") || roles.contains("ROLE_ExaminationsStaff")) {
            return true;
        }
        return false;
    }

    private boolean isStaff(List<String> roles) {
        if (roles.contains("ROLE_AcademicStaff") || roles.contains("ROLE_UniversityAdmin")) {
            return true;
        }
        return false;
    }
}

Extending Spring SimpleUrlAuthenticationSuccessHandler class and overriding handle() method which simply invokes a redirect using configured RedirectStrategy [default in this case] with the URL returned by the user defined determineTargetUrl() method. This method extracts the Roles of currently logged in user from Authentication object and then construct appropriate URL based on there roles. Finally RedirectStrategy , which is responsible for all redirections within Spring Security framework , redirects the request to specified URL.

Registering CustomSuccessHandler using SecurityConfiguration class:

package com.mycompany.uomrmsweb.configuration;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;

@Configuration
@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier("customUserDetailsService")
    UserDetailsService userDetailsService;

    @Autowired
    CustomSuccessHandler customSuccessHandler;

    @Autowired
    public void configureGlobalSecurity(AuthenticationManagerBuilder auth) throws Exception {
            auth.userDetailsService(userDetailsService);
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
        .antMatchers("/", "/home").access("hasRole('USER')")
        .antMatchers("/admin/**").access("hasRole('SystemAdmin') or hasRole('ExaminationsStaff')")
        .antMatchers("/staff/**").access("hasRole('AcademicStaff') or hasRole('UniversityAdmin')")
        .antMatchers("/student/**").access("hasRole('Student')")  
                    .and().formLogin().loginPage("/login").successHandler(customSuccessHandler)
        .usernameParameter("username").passwordParameter("password")
        .and().csrf()
        .and().exceptionHandling().accessDeniedPage("/Access_Denied");
    }
}

successHandler is the class responsible for eventual redirection based on any custom logic, which in this case will be to redirect the user [to student/admin/staff ] based on his role [USER/Student/SystemAdmin/UniversityAdmin/ExaminationsStaff/AcademicStaff].

I'd like to add another method. This one uses recursive querys, something I haven't seen in the other answers. It is supported by Oracle since 11gR2.

with cte0 as (
    select phone_number x
    from hr.employees
), cte1(xstr,xrest,xremoved) as (
        select x, x, null
        from cte0
    union all        
        select xstr,
            case when instr(xrest,'.') = 0 then null else substr(xrest,instr(xrest,'.')+1) end,
            case when instr(xrest,'.') = 0 then xrest else substr(xrest,1,instr(xrest,'.') - 1) end
        from cte1
        where xrest is not null
)
select xstr, xremoved from cte1  
where xremoved is not null
order by xstr

It is quite flexible with the splitting character. Simply change it in the INSTR calls.

If you want to follow all the "best practices," there's a few things I'd recommend, some of which are touched on in other answers and comments to this question.

First, while it doesn't have too much of an affect on the specific question you asked, you did mention efficiency, and the best way to handle shared data in your application is to factor it out into a service.

I would personally recommend embracing AngularJS's promise system, which will make your asynchronous services more composable compared to raw callbacks. Luckily, Angular's $http service already uses them under the hood. Here's a service that will return a promise that resolves to the data from the JSON file; calling the service more than once will not cause a second HTTP request.

app.factory('locations', function($http) {
  var promise = null;

  return function() {
    if (promise) {
      // If we've already asked for this data once,
      // return the promise that already exists.
      return promise;
    } else {
      promise = $http.get('locations/locations.json');
      return promise;
    }
  };
});

As far as getting the data into your directive, it's important to remember that directives are designed to abstract generic DOM manipulation; you should not inject them with application-specific services. In this case, it would be tempting to simply inject the locations service into the directive, but this couples the directive to that service.

A brief aside on code modularity: a directive’s functions should almost never be responsible for getting or formatting their own data. There’s nothing to stop you from using the $http service from within a directive, but this is almost always the wrong thing to do. Writing a controller to use $http is the right way to do it. A directive already touches a DOM element, which is a very complex object and is difficult to stub out for testing. Adding network I/O to the mix makes your code that much more difficult to understand and that much more difficult to test. In addition, network I/O locks in the way that your directive will get its data – maybe in some other place you’ll want to have this directive receive data from a socket or take in preloaded data. Your directive should either take data in as an attribute through scope.$eval and/or have a controller to handle acquiring and storing the data.

- The 80/20 Guide to Writing AngularJS Directives

In this specific case, you should place the appropriate data on your controller's scope and share it with the directive via an attribute.

app.controller('SomeController', function($scope, locations) {
  locations().success(function(data) {
    $scope.locations = data;
  });
});

<ul class="list">
   <li ng-repeat="location in locations">
      <a href="#">{{location.id}}. {{location.name}}</a>
   </li>
</ul>
<map locations='locations'></map>

app.directive('map', function() {
  return {
    restrict: 'E',
    replace: true,
    template: '<div></div>',
    scope: {
      // creates a scope variable in your directive
      // called `locations` bound to whatever was passed
      // in via the `locations` attribute in the DOM
      locations: '=locations'
    },
    link: function(scope, element, attrs) {
      scope.$watch('locations', function(locations) {
        angular.forEach(locations, function(location, key) {
          // do something
        });
      });
    }
  };
});

In this way, the map directive can be used with any set of location data--the directive is not hard-coded to use a specific set of data, and simply linking the directive by including it in the DOM will not fire off random HTTP requests.

For older versions of Hibernate (<5.2):

Assuming the class name is Book:

return (Number) session.createCriteria("Book")
                  .setProjection(Projections.rowCount())
                  .uniqueResult();

It is at least a Number, most likely a Long.

I think you can use db.collection.distinct(fields,query)

You will be able to get the distinct values in your case for NetworkID.

It should be something like this :

Db.collection.distinct('NetworkID')

I was getting a similar problem with SBT and slf4j. Nothing had changed, but on one machine it suddenly wouldn't build.

I tried:

• sbt clean
• deleting target/
• deleting project working directory and doing a fresh checkout/build
• deleting the ~/.sbt/<scala-version>/ folder
• deleting the offending slf4j folder from the ~/.ivy2 cache
• placing the missing slf4j jars in the expected ivy2 folder

None of the above worked.

So, I had to bite the bullet and delete my entire ~/.ivy2/ cache folder and wait for 2GB of dependencies to be downloaded again. I'm not familiar with what sort of cache manifests get written in there, but this must have been a corruption of one of them.

(using SBT 2.10.4 for Spark builds)

You can do it with a table, like this:

<table width="100%">
  <tr>
    <td style="width: 50%">Left Text</td>
    <td style="width: 50%; text-align: right;">Right Text</td>
  </tr>
</table>

Or, you can do it with CSS like this:

<div style="float: left;">
    Left text
</div>
<div style="float: right;">
    Right text
</div>

It's Feb 2013, and I can now target XP in VS2012 by setting:

Project Properties -> General -> Platform Toolset to:

Visual Studio 2012 - Windows XP (v110_xp)

You will have to redistribute the msvcp110.dll libraries et al with your application, which are found here: "<Program Files>\Microsoft Visual Studio 11.0\VC\redist\x86\Microsoft.VC110.CRT\"

Update Aug 2015 with Visual Studio 2015

There seems to be quite a selection now. I was able to compile application in VS2015 using Visual Studio 2015 - Windows XP (v140_xp) setting. To make it actually run on Win XP I had to deploy (copy alongside application) msvcr100.dll for Release build and msvcr110.dll and msvcr100d.dll for Debug build (note there is a difference in numbers 100 and 110, also debug lib msvcr100d.dll may not be redistributable)

Setting Up the database

public class DatabaseHelper extends SQLiteOpenHelper {
    // Database Version
    private static final int DATABASE_VERSION = 1;

    // Database Name
    private static final String DATABASE_NAME = "database_name";

    // Table Names
    private static final String DB_TABLE = "table_image";

    // column names
    private static final String KEY_NAME = "image_name";
    private static final String KEY_IMAGE = "image_data";

    // Table create statement
    private static final String CREATE_TABLE_IMAGE = "CREATE TABLE " + DB_TABLE + "("+ 
                       KEY_NAME + " TEXT," + 
                       KEY_IMAGE + " BLOB);";

    public DatabaseHelper(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {

        // creating table
        db.execSQL(CREATE_TABLE_IMAGE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // on upgrade drop older tables
        db.execSQL("DROP TABLE IF EXISTS " + DB_TABLE);

        // create new table
        onCreate(db);
    }
}

Insert in the Database:

public void addEntry( String name, byte[] image) throws SQLiteException{
    SQLiteDatabase database = this.getWritableDatabase();
    ContentValues cv = new  ContentValues();
    cv.put(KEY_NAME,    name);
    cv.put(KEY_IMAGE,   image);
    database.insert( DB_TABLE, null, cv );
}

Retrieving data:

 byte[] image = cursor.getBlob(1);

Note:

1. Before inserting into database, you need to convert your Bitmap image into byte array first then apply it using database query.
2. When retrieving from database, you certainly have a byte array of image, what you need to do is to convert byte array back to original image. So, you have to make use of BitmapFactory to decode.

Below is an Utility class which I hope could help you:

public class DbBitmapUtility {

    // convert from bitmap to byte array
    public static byte[] getBytes(Bitmap bitmap) {
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(CompressFormat.PNG, 0, stream);
        return stream.toByteArray();
    }

    // convert from byte array to bitmap
    public static Bitmap getImage(byte[] image) {
        return BitmapFactory.decodeByteArray(image, 0, image.length);
    }
}

Further reading
If you are not familiar how to insert and retrieve into a database, go through this tutorial.