Aside: attempt to amend Tomasz Nurkiewicz's answer was rejected:

This edit does not make the post even a little bit easier to read, easier to find, more accurate or more accessible. Changes are either completely superfluous or actively harm readability.

Correct and permanent link to the relevant section of documentation about integration testing.

To enable support for transactions, you must configure a PlatformTransactionManager bean in the ApplicationContext that is loaded via @ContextConfiguration semantics.

@Configuration
@PropertySource("application.properties")
public class Persistence {
    @Autowired
    Environment env;

    @Bean
    DataSource dataSource() {
        return new DriverManagerDataSource(
                env.getProperty("datasource.url"),
                env.getProperty("datasource.user"),
                env.getProperty("datasource.password")
        );
    }

    @Bean
    PlatformTransactionManager transactionManager() {
        return new DataSourceTransactionManager(dataSource());
    }
}

In addition, you must declare Spring’s @Transactional annotation either at the class or method level for your tests.

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {Persistence.class, SomeRepository.class})
@Transactional
public class SomeRepositoryTest { ... }

Annotating a test method with @Transactional causes the test to be run within a transaction that will, by default, be automatically rolled back after completion of the test. If a test class is annotated with @Transactional, each test method within that class hierarchy will be run within a transaction.

I had the same problem (JUnit tests failed in Maven Surefire but passed in Eclipse) and managed to solve it by setting forkMode to always in the maven surefire configuration in pom.xml:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.12</version>
    <configuration>
        <forkMode>always</forkMode>
    </configuration>
</plugin>

Surefire parameters: http://maven.apache.org/plugins/maven-surefire-plugin/test-mojo.html

Edit (January 2014):

As Peter Perhác pointed out, the forkMode parameter is deprecated since Surefire 2.14. Beginning from Surefire 2.14 use this instead:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.16</version>
    <configuration>
        <reuseForks>false</reuseForks>
        <forkCount>1</forkCount>
    </configuration>
</plugin>

For more information see Fork Options and Parallel Test Execution

It's possible to inject instance of ApplicationContext class by using SpringClassRule and SpringMethodRule rules. It might be very handy if you would like to use another non-Spring runners. Here's an example:

@ContextConfiguration(classes = BeanConfiguration.class)
public static class SpringRuleUsage {

    @ClassRule
    public static final SpringClassRule springClassRule = new SpringClassRule();

    @Rule
    public final SpringMethodRule springMethodRule = new SpringMethodRule();

    @Autowired
    private ApplicationContext context;

    @Test
    public void shouldInjectContext() {
    }
}

For Unit Tests, the System variable is not instantiated yet when I do "mvn clean install" because there is no server running the application. So in order to set the System properties, I need to do it in pom.xml. Like so:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.21.0</version>
    <configuration>
        <systemPropertyVariables>
            <propertyName>propertyValue</propertyName>
            <MY_ENV_VAR>newValue</MY_ENV_VAR>
            <ENV_TARGET>olqa</ENV_TARGET>
            <buildDirectory>${project.build.directory}</buildDirectory>
        </systemPropertyVariables>
    </configuration>
</plugin>

It is worth mentioning that there is also: database scoped global temporary tables(currently supported only by Azure SQL Database).

Global temporary tables for SQL Server (initiated with ## table name) are stored in tempdb and shared among all users’ sessions across the whole SQL Server instance.

Azure SQL Database supports global temporary tables that are also stored in tempdb and scoped to the database level. This means that global temporary tables are shared for all users’ sessions within the same Azure SQL Database. User sessions from other databases cannot access global temporary tables.

-- Session A creates a global temp table ##test in Azure SQL Database testdb1
-- and adds 1 row
CREATE TABLE ##test ( a int, b int);
INSERT INTO ##test values (1,1);

-- Session B connects to Azure SQL Database testdb1 
-- and can access table ##test created by session A
SELECT * FROM ##test
---Results
1,1

-- Session C connects to another database in Azure SQL Database testdb2 
-- and wants to access ##test created in testdb1.
-- This select fails due to the database scope for the global temp tables 
SELECT * FROM ##test
---Results
Msg 208, Level 16, State 0, Line 1
Invalid object name '##test'

ALTER DATABASE SCOPED CONFIGURATION

GLOBAL_TEMPORARY_TABLE_AUTODROP = { ON | OFF }

APPLIES TO: Azure SQL Database (feature is in public preview)

Allows setting the auto-drop functionality for global temporary tables. The default is ON, which means that the global temporary tables are automatically dropped when not in use by any session. When set to OFF, global temporary tables need to be explicitly dropped using a DROP TABLE statement or will be automatically dropped on server restart.

With Azure SQL Database single databases and elastic pools, this option can be set in the individual user databases of the SQL Database server. In SQL Server and Azure SQL Database managed instance, this option is set in TempDB and the setting of the individual user databases has no effect.

As @Renan mentioned, ng-include creates a new child scope. This scope prototypically inherits (see dashed lines below) from the HomeCtrl scope. ng-model="lineText" actually creates a primitive scope property on the child scope, not HomeCtrl's scope. This child scope is not accessible to the parent/HomeCtrl scope:

To store what the user typed into HomeCtrl's $scope.lines array, I suggest you pass the value to the addLine function:

 <form ng-submit="addLine(lineText)">

In addition, since lineText is owned by the ngInclude scope/partial, I feel it should be responsible for clearing it:

 <form ng-submit="addLine(lineText); lineText=''">

Function addLine() would thus become:

$scope.addLine = function(lineText) {
    $scope.chat.addLine(lineText);
    $scope.lines.push({
        text: lineText
    });
};

Fiddle.

Alternatives:

• define an object property on HomeCtrl's $scope, and use that in the partial: ng-model="someObj.lineText; fiddle
• not recommended, this is more of a hack: use $parent in the partial to create/access a lineText property on the HomeCtrl $scope:  ng-model="$parent.lineText"; fiddle

It is a bit involved to explain why the above two alternatives work, but it is fully explained here: What are the nuances of scope prototypal / prototypical inheritance in AngularJS?

I don't recommend using this in the addLine() function. It becomes much less clear which scope is being accessed/manipulated.

You can read it, but you can't set it. value="123" will be ignored, so it won't have a value until you click on it and pick a file.

Even then, the value will likely be mangled with something like c:\fakepath\ to keep the details of the user's filesystem private.

It would seem like your user doesn't have permission to write to that directory on the server. Please make sure that the permissions are correct. The user will need write permissions on that directory.

def matchingString(x,y):
    match=''
    for i in range(0,len(x)):
        for j in range(0,len(y)):
            k=1
            # now applying while condition untill we find a substring match and length of substring is less than length of x and y
            while (i+k <= len(x) and j+k <= len(y) and x[i:i+k]==y[j:j+k]):
                if len(match) <= len(x[i:i+k]):
                   match = x[i:i+k]
                k=k+1
    return match  

print matchingString('apple','ale') #le
print matchingString('apple pie available','apple pies') #apple pie     

In pydev eclipse plugin, you may want to set the environment variable for DYLD. The path can be set as shown in

Install mysqldb on snow leopard

Update: this was fixed in Firefox v35. See the full gist for details.

== how to hide the select arrow in Firefox ==

Just figured out how to do it. The trick is to use a mix of -prefix-appearance, text-indent and text-overflow. It is pure CSS and requires no extra markup.

select {
    -moz-appearance: none;
    text-indent: 0.01px;
    text-overflow: '';
}

Long story short, by pushing it a tiny bit to the right, the overflow gets rid of the arrow. Pretty neat, huh?

More details on this gist I just wrote. Tested on Ubuntu, Mac and Windows, all with recent Firefox versions.

You can get this error if you use wrong mode when opening the file. For example:

    with open(output, 'wb') as output_file:
        print output_file.read()

In that code, I want to read the file, but I use mode wb instead of r or r+

I would use the operator[].

map <char, int> m1;

m1['G'] ++;  // If the element 'G' does not exist then it is created and 
             // initialized to zero. A reference to the internal value
             // is returned. so that the ++ operator can be applied.

// If 'G' did not exist it now exist and is 1.
// If 'G' had a value of 'n' it now has a value of 'n+1'

So using this technique it becomes really easy to read all the character from a stream and count them:

map <char, int>                m1;
std::ifstream                  file("Plop");
std::istreambuf_iterator<char> end;

for(std::istreambuf_iterator<char> loop(file); loop != end; ++loop)
{
    ++m1[*loop]; // prefer prefix increment out of habbit
}

Here is email code I used in one of my databases. I just made variables for the person I wanted to send it to, CC, subject, and the body. Then you just use the DoCmd.SendObject command. I also set it to "True" after the body so you can edit the message before it automatically sends.

Public Function SendEmail2()

Dim varName As Variant          
Dim varCC As Variant            
Dim varSubject As Variant      
Dim varBody As Variant          

varName = "[email protected]"
varCC = "[email protected], [email protected]"
'separate each email by a ','

varSubject = "Hello"
'Email subject

varBody = "Let's get ice cream this week"

'Body of the email
DoCmd.SendObject , , , varName, varCC, , varSubject, varBody, True, False
'Send email command. The True after "varBody" allows user to edit email before sending.
'The False at the end will not send it as a Template File

End Function

I know this is a little late to the party but you could use viewport units

From caniuse.com:

Viewport units: vw, vh, vmin, vmax - CR Length units representing 1% of the viewport size for viewport width (vw), height (vh), the smaller of the two (vmin), or the larger of the two (vmax).

Support: http://caniuse.com/#feat=viewport-units

div {_x000D_
/* 25% of viewport */_x000D_
  height: 25vh;_x000D_
  width: 15rem;_x000D_
  background-color: #222;_x000D_
  color: #eee;_x000D_
  font-family: monospace;_x000D_
  padding: 2rem;_x000D_
}

<div>responsive height</div>

I am not writing as the answer for this question. But I want to help others if they faced the same bug but the answers mentioned here not works. I also tried all the solutions mentioned here. But my problem was with the namespace I used. The path was wrong.

The namespace I used is:

namespace App\Http\Controllers;

But actually the controller reside inside a folder named 'FrontEnd'

so the solution is change the namespace to:

namespace App\Http\Controllers\Frontend;

This may be not the full answer to your question, however if you are looking for way to disable csrf protection you can do:

@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/web/admin/**").hasAnyRole(ADMIN.toString(), GUEST.toString())
                .anyRequest().permitAll()
                .and()
                .formLogin().loginPage("/web/login").permitAll()
                .and()
                .csrf().ignoringAntMatchers("/contact-email")
                .and()
                .logout().logoutUrl("/web/logout").logoutSuccessUrl("/web/").permitAll();
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
                .withUser("admin").password("admin").roles(ADMIN.toString())
                .and()
                .withUser("guest").password("guest").roles(GUEST.toString());
    }

}

I have included full configuration but the key line is:

.csrf().ignoringAntMatchers("/contact-email")

The rule for using spinlocks is simple: use a spinlock if and only if the real time the lock is held is bounded and sufficiently small.

Note that usually user implemented spinlocks DO NOT satisfy this requirement because they do not disable interrupts. Unless pre-emptions are disabled, a pre-emption whilst a spinlock is held violates the bounded time requirement.

Sufficiently small is a judgement call and depends on the context.

Exception: some kernel programming must use a spinlock even when the time is not bounded. In particular if a CPU has no work to do, it has no choice but to spin until some more work turns up.

Special danger: in low level programming take great care when multiple interrupt priorities exist (usually there is at least one non-maskable interrupt). In this higher priority pre-emptions can run even if interrupts at the thread priority are disabled (such as priority hardware services, often related to the virtual memory management). Provided a strict priority separation is maintained, the condition for bounded real time must be relaxed and replaced with bounded system time at that priority level. Note in this case not only can the lock holder be pre-empted but the spinner can also be interrupted; this is generally not a problem because there's nothing you can do about it.

Adding a slight variation on Aaronaught's solution, I typically parametrize page number (@PageNum) and page size (@PageSize). This way each page click event just sends in the requested page number along with a configurable page size:

begin
    with My_CTE  as
    (
         SELECT col1,
              ROW_NUMBER() OVER(ORDER BY col1) AS row_number
     FROM
          My_Table
     WHERE
          <<<whatever>>>
    )
    select * from My_CTE
            WHERE RowNum BETWEEN (@PageNum - 1) * (@PageSize + 1) 
                              AND @PageNum * @PageSize

end

This is what you need:

import time
import datetime
n = datetime.datetime.now()
unix_time = time.mktime(n.timetuple())

I am doing similar thing to compile all the c files in a directory.
for iterating files in different directory try this.

set codedirectory=C:\Users\code
for /r  %codedirectory% %%i in (*.c) do 
( some GCC commands )

Bit heavy because of using pandas but works:

import pandas as pd
pd.to_datetime(msec_from_java, unit='ms').to_pydatetime()

That's not possible using the built-in Array.prototype.map. However, you could use a simple for-loop instead, if you do not intend to map any values:

var hasValueLessThanTen = false;
for (var i = 0; i < myArray.length; i++) {
  if (myArray[i] < 10) {
    hasValueLessThanTen = true;
    break;
  }
}

Or, as suggested by @RobW, use Array.prototype.some to test if there exists at least one element that is less than 10. It will stop looping when some element that matches your function is found:

var hasValueLessThanTen = myArray.some(function (val) { 
  return val < 10;
});

In C# it is

public class AdminForumUser : UserBase, IUser

Java would say

public class AdminForumUser extends User implements ForumUserInterface

Because of that, I don't think conventions are nearly as important in java for interfaces, since there is an explicit difference between inheritance and interface implementation. I would say just choose any naming convention you would like, as long as you are consistant and use something to show people that these are interfaces. Haven't done java in a few years, but all interfaces would just be in their own directory, and that was the convention. Never really had any issues with it.

The best way to go about it would be to get a SynchronizationContext from the UI thread and use it. This class abstracts marshalling calls to other threads, and makes testing easier (in contrast to using WPF's Dispatcher directly). For example:

class MyViewModel
{
    private readonly SynchronizationContext _syncContext;

    public MyViewModel()
    {
        // we assume this ctor is called from the UI thread!
        _syncContext = SynchronizationContext.Current;
    }

    // ...

    private void watcher_Changed(object sender, FileSystemEventArgs e)
    {
         _syncContext.Post(o => DGAddRow(crp.Protocol, ft), null);
    }
}

Double is a wrapper class,

The Double class wraps a value of the primitive type double in an object. An object of type Double contains a single field whose type is double.

In addition, this class provides several methods for converting a double to a String and a String to a double, as well as other constants and methods useful when dealing with a double.

The double data type,

The double data type is a double-precision 64-bit IEEE 754 floating point. Its range of values is 4.94065645841246544e-324d to 1.79769313486231570e+308d (positive or negative). For decimal values, this data type is generally the default choice. As mentioned above, this data type should never be used for precise values, such as currency.

Check each datatype with their ranges : Java's Primitive Data Types.

Important Note : If you'r thinking to use double for precise values, you need to re-think before using it. Java Traps: double

Use screen. It is very simple to use and works like vnc for terminals. http://www.bangmoney.org/presentations/screen.html

binary search runs in O(logn) time whereas linear search runs in O(n) times thus binary search has better performance

>>> test = "have it break."
>>> selectiveEscape = "Print percent %% in sentence and not %s" % test
>>> print selectiveEscape
Print percent % in sentence and not have it break.

All of the answers didn't work for me, I checked the playlist URL and seen that playlist parameter changed to list! So it should be:

&loop=1&list=PLvNxGp1V1dOwpDBl7L3AJIlkKYdNDKUEs

So here is the full code I use make a clean, looping, autoplay video:

<iframe width="100%" height="425" src="https://www.youtube.com/embed/MavEpJETfgI?autoplay=1&showinfo=0&loop=1&list=PLvNxGp1V1dOwpDBl7L3AJIlkKYdNDKUEs&rel=0" frameborder="0" allowfullscreen></iframe>

If you only want to sort only on the 5th field then use -k5,5.

Also, use the -t command line switch to specify the delimiter to tab. Try this:

sort  -k5,5 -r -n -t \t filename

or if the above doesn't work (with the tab) this:

sort  -k5,5 -r -n -t $'\t' filename

The man page for sort states:

-t, --field-separator=SEP use SEP instead of non-blank to blank transition

Finally, this SO question Unix Sort with Tab Delimiter might be helpful.

MyClass.class.getDeclaredConstructor(String.class).newInstance("HERESMYARG");

or

obj.getClass().getDeclaredConstructor(String.class).newInstance("HERESMYARG");

Following up on Sergey's suggestion, you can define and reuse a whole Style (with various property setters, including Margin) instead of just a Thickness object:

<Style x:Key="MyStyle" TargetType="SomeItemType">
  <Setter Property="Margin" Value="0,5,0,5" />
  ...
</Style>

...

  <StackPanel>
    <StackPanel.Resources>
      <Style TargetType="SomeItemType" BasedOn="{StaticResource MyStyle}" />
    </StackPanel.Resources>
  ...
  </StackPanel>

Note that the trick here is the use of Style Inheritance for the implicit style, inheriting from the style in some outer (probably merged from external XAML file) resource dictionary.

Sidenote:

At first, I naively tried to use the implicit style to set the Style property of the control to that outer Style resource (say defined with the key "MyStyle"):

<StackPanel>
  <StackPanel.Resources>
    <Style TargetType="SomeItemType">
      <Setter Property="Style" Value={StaticResource MyStyle}" />
    </Style>
  </StackPanel.Resources>
</StackPanel>

which caused Visual Studio 2010 to shut down immediately with CATASTROPHIC FAILURE error (HRESULT: 0x8000FFFF (E_UNEXPECTED)), as described at https://connect.microsoft.com/VisualStudio/feedback/details/753211/xaml-editor-window-fails-with-catastrophic-failure-when-a-style-tries-to-set-style-property#

OK, figured it out now - thanks to Jobi whose answer was close, but not quite.

From a WPF application, here's my code that works:

First a helper class:

private class OldWindow : System.Windows.Forms.IWin32Window
{    
    IntPtr _handle;    
    public OldWindow(IntPtr handle)
    {
        _handle = handle;
    }   

    #region IWin32Window Members    
    IntPtr System.Windows.Forms.IWin32Window.Handle
    {
        get { return _handle; }
    }    
    #endregion
}

Then, to use this:

    System.Windows.Forms.FolderBrowserDialog dlg = new FolderBrowserDialog();
    HwndSource source = PresentationSource.FromVisual(this) as HwndSource;
    System.Windows.Forms.IWin32Window win = new OldWindow(source.Handle);
    System.Windows.Forms.DialogResult result = dlg.ShowDialog(win);

I'm sure I can wrap this up better, but basically it works. Yay! :-)

You can create a GitHub repo via the command line using the GitHub API. Outside of the API, there's no way to create a repo on GitHub via the command line.

Type:

curl -u 'username' https://api.github.com/user/repos -d '{"name":"projectname","description":"project desc"}'

git remote add origin [email protected]:nyeates/projectname.git

and now you can continue regular way

1. source_list[::10] is the most obvious, but this doesn't work for any iterable and is not memory efficient for large lists.
2. itertools.islice(source_sequence, 0, None, 10) works for any iterable and is memory-efficient, but probably is not the fastest solution for large list and big step.
3. (source_list[i] for i in xrange(0, len(source_list), 10))

Maven versions can contain a string literal "SNAPSHOT" to signify that a project is currently under active development.

For example, if your project has a version of “1.0-SNAPSHOT” and you deploy this project’s artifacts to a Maven repository, Maven would expand this version to “1.0-20080207-230803-1” if you were to deploy a release at 11:08 PM on February 7th, 2008 UTC. In other words, when you deploy a snapshot, you are not making a release of a software component; you are releasing a snapshot of a component at a specific time.

So mainly snapshot versions are used for projects under active development. If your project depends on a software component that is under active development, you can depend on a snapshot release, and Maven will periodically attempt to download the latest snapshot from a repository when you run a build. Similarly, if the next release of your system is going to have a version “1.8,” your project would have a “1.8-SNAPSHOT” version until it was formally released.

For example , the following dependency would always download the latest 1.8 development JAR of spring:

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring</artifactId>
        <version>1.8-SNAPSHOT”</version>
    </dependency>

Maven

An example of maven release process

Learning to use smart pointers is in my opinion one of the most important steps to become a competent C++ programmer. As you know whenever you new an object at some point you want to delete it.

One issue that arise is that with exceptions it can be very hard to make sure a object is always released just once in all possible execution paths.

This is the reason for RAII: http://en.wikipedia.org/wiki/RAII

Making a helper class with purpose of making sure that an object always deleted once in all execution paths.

Example of a class like this is: std::auto_ptr

But sometimes you like to share objects with other. It should only be deleted when none uses it anymore.

In order to help with that reference counting strategies have been developed but you still need to remember addref and release ref manually. In essence this is the same problem as new/delete.

That's why boost has developed boost::shared_ptr, it's reference counting smart pointer so you can share objects and not leak memory unintentionally.

With the addition of C++ tr1 this is now added to the c++ standard as well but its named std::tr1::shared_ptr<>.

I recommend using the standard shared pointer if possible. ptr_list, ptr_dequeue and so are IIRC specialized containers for pointer types. I ignore them for now.

So we can start from your example:

std::vector<gate*> G; 
G.push_back(new ANDgate);  
G.push_back(new ORgate); 
for(unsigned i=0;i<G.size();++i) 
{ 
  G[i]->Run(); 
} 

The problem here is now that whenever G goes out scope we leak the 2 objects added to G. Let's rewrite it to use std::tr1::shared_ptr

// Remember to include <memory> for shared_ptr
// First do an alias for std::tr1::shared_ptr<gate> so we don't have to 
// type that in every place. Call it gate_ptr. This is what typedef does.
typedef std::tr1::shared_ptr<gate> gate_ptr;    
// gate_ptr is now our "smart" pointer. So let's make a vector out of it.
std::vector<gate_ptr> G; 
// these smart_ptrs can't be implicitly created from gate* we have to be explicit about it
// gate_ptr (new ANDgate), it's a good thing:
G.push_back(gate_ptr (new ANDgate));  
G.push_back(gate_ptr (new ORgate)); 
for(unsigned i=0;i<G.size();++i) 
{ 
   G[i]->Run(); 
} 

When G goes out of scope the memory is automatically reclaimed.

As an exercise which I plagued newcomers in my team with is asking them to write their own smart pointer class. Then after you are done discard the class immedietly and never use it again. Hopefully you acquired crucial knowledge on how a smart pointer works under the hood. There's no magic really.

For .NET Core, add System.Configuration.ConfigurationManager from NuGet manager.
And read appSetting from App.config

<appSettings>
  <add key="appSetting1" value="1000" />
</appSettings>

Add System.Configuration.ConfigurationManager from NuGet Manager

ConfigurationManager.AppSettings.Get("appSetting1")

No REAL easy way to do this. Lots of ideas out there, though.

Best one I've found:

SELECT table_name, LEFT(column_names , LEN(column_names )-1) AS column_names
FROM information_schema.columns AS extern
CROSS APPLY
(
    SELECT column_name + ','
    FROM information_schema.columns AS intern
    WHERE extern.table_name = intern.table_name
    FOR XML PATH('')
) pre_trimmed (column_names)
GROUP BY table_name, column_names;

Or a version that works correctly if the data might contain characters such as <

WITH extern
     AS (SELECT DISTINCT table_name
         FROM   INFORMATION_SCHEMA.COLUMNS)
SELECT table_name,
       LEFT(y.column_names, LEN(y.column_names) - 1) AS column_names
FROM   extern
       CROSS APPLY (SELECT column_name + ','
                    FROM   INFORMATION_SCHEMA.COLUMNS AS intern
                    WHERE  extern.table_name = intern.table_name
                    FOR XML PATH(''), TYPE) x (column_names)
       CROSS APPLY (SELECT x.column_names.value('.', 'NVARCHAR(MAX)')) y(column_names) 

Consider this line of code:

Math.abs(firstDouble - secondDouble) < Double.MIN_NORMAL

It returns whether firstDouble is equal to secondDouble. I'm unsure as to whether or not this would work in your exact case (as Kevin pointed out, performing any math on floating points can lead to imprecise results) however I was having difficulties with comparing two double which were, indeed, equal, and yet using the 'compareTo' method didn't return 0.

I'm just leaving this there in case anyone needs to compare to check if they are indeed equal, and not just similar.

Below command works for me. Provided that all required jars including testng jar kept inside lib.

java -cp "lib/*" org.testng.TestNG testng.xml

I just solved an identical symptom, by creating the registry value HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\system\LocalAccountTokenFilterPolicy and setting it to 1. More details are available here.

I don't thinks that possible with a vanilla collection without storing the key values in an independent array.

The easiest alternative to do this is to add a reference to the Microsoft Scripting Runtime & use a more capable Dictionary instead:

Dim dict As Dictionary
Set dict = New Dictionary

dict.Add "key1", "value1"
dict.Add "key2", "value2"

Dim key As Variant
For Each key In dict.Keys
    Debug.Print "Key: " & key, "Value: " & dict.Item(key)
Next

The foreach construct is unfortunately not intrinsic to collections but instead external to them. The result is two-fold:

• it can not be chained
• it requires two lines in idiomatic python.

Python does not support a true foreach on collections directly. An example would be

myList.foreach( a => print(a)).map( lambda x:  x*2)

But python does not support it. Partial fixes to this and other missing functionals features in python are provided by various third party libraries including one that I helped author: see https://pypi.org/project/infixpy/

Say you train a model on a training set and then measure its performance on a test set. You think that there is still room for improvement and you try tweaking the hyper-parameters ( If the model is a Neural Network - hyper-parameters are the number of layers, or nodes in the layers ). Now you get a slightly better performance. However, when the model is subjected to another data ( not in the testing and training set ) you may not get the same level of accuracy. This is because you introduced some bias while tweaking the hyper-parameters to get better accuracy on the testing set. You basically have adapted the model and hyper-parameters to produce the best model for that particular training set.

A common solution is to split the training set further to create a validation set. Now you have

• training set
• testing set
• validation set

You proceed as before but this time you use the validation set to test the performance and tweak the hyper-parameters. More specifically, you train multiple models with various hyper-parameters on the reduced training set (i.e., the full training set minus the validation set), and you select the model that performs best on the validation set.

Once you've selected the best performing model on the validation set, you train the best model on the full training set (including the valida- tion set), and this gives you the final model.

Lastly, you evaluate this final model on the test set to get an estimate of the generalization error.

The canonical solution is the one mentioned by another respondent:

sort | uniq -c

It is shorter and more concise than what can be written in Perl or awk.

You write that you don't want to use sort, because the data's size is larger than the machine's main memory size. Don't underestimate the implementation quality of the Unix sort command. Sort was used to handle very large volumes of data (think the original AT&T's billing data) on machines with 128k (that's 131,072 bytes) of memory (PDP-11). When sort encounters more data than a preset limit (often tuned close to the size of the machine's main memory) it sorts the data it has read in main memory and writes it into a temporary file. It then repeats the action with the next chunks of data. Finally, it performs a merge sort on those intermediate files. This allows sort to work on data many times larger than the machine's main memory.

HTTP VS HTTPS PERFORMANCE COMPARISON

I have always associated HTTPS with slower page load times when compared to plain old HTTP. As a web developer, web page performance is important to me and anything that will slow down the performance of my web pages is a no-no.

In order to understand the performance implications involved, the diagram below gives you a basic idea of what happens under the hood when you make a request for a resource using HTTPS.

As you can see from the diagram above, there are a few extra steps that need to take place when using HTTPS compared to using plain HTTP. When you make a request using HTTPS, a handshake needs to occur in order to verify the authenticity of the request. This handshake is an extra step when compared to an HTTP request and does unfortunately incur some overhead.

In order to understand the performance implications and see for myself whether or not the performance impact would be significant, I used this site as a testing platform. I headed over to webpagetest.org and used the visual comparison tool to compare this site loading using HTTPS vs HTTP.

As you can see from Here is Test video Result using HTTPS did have an impact on my page load times, however the difference is negligible and I only noticed a 300 millisecond difference. It's important to note that these times depend on many factors, such as computer performance, connection speed, server load, and distance from server.

Your site may be different, and it is important to test your site thoroughly and check the performance impact involved in switching to HTTPS.

#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double x=54.999999999999943157;
    int y=ceil(x);//The ceil() function returns the smallest integer no less than x
    return 0;
}

You can use a custom serializer at your money field. Here's an example with a MoneyBean. The field amount gets annotated with @JsonSerialize(using=...).

public class MoneyBean {
    //...

    @JsonProperty("amountOfMoney")
    @JsonSerialize(using = MoneySerializer.class)
    private BigDecimal amount;

    //getters/setters...
}

public class MoneySerializer extends JsonSerializer<BigDecimal> {
    @Override
    public void serialize(BigDecimal value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
            JsonProcessingException {
        // put your desired money style here
        jgen.writeString(value.setScale(2, BigDecimal.ROUND_HALF_UP).toString());
    }
}

That's it. A BigDecimal is now printed in the right way. I used a simple testcase to show it:

@Test
public void jsonSerializationTest() throws Exception {
     MoneyBean m = new MoneyBean();
     m.setAmount(new BigDecimal("20.3"));

     ObjectMapper mapper = new ObjectMapper();
     assertEquals("{\"amountOfMoney\":\"20.30\"}", mapper.writeValueAsString(m));
}

This is heavily based on the @Galen version above, however, I wanted to add range control that could limit the colour produced to be red, green, blue, lighter or darker. It might be of use to others.

function random_colour_part($lower, $upper)
{
    //randomly select colour in range and convert to hexidecimal
    return str_pad(dechex(mt_rand($lower, $upper)), 2, '0', STR_PAD_LEFT);
}

function random_colour($colour)
{
    //loop through colour
    foreach ($colour as $key => $value)
    {
        //retrieve each r,g,b colour range and generate random hexidecimal colour
        if ($key == "r") $r = random_colour_part($value[0], $value[1]);
        if ($key == "g") $g = random_colour_part($value[0], $value[1]);
        if ($key == "b") $b = random_colour_part($value[0], $value[1]);
    }

    //return hexidecimal colour
    return "#" . $r . $g . $b;
}

//generate a random red-based colour
echo random_colour(["r"=>[0,255], "g"=>[0,0], "b"=>[0,0]]);

//generate a random light green-based colour (use only half of the 255 range)
echo random_colour(["r"=>[0,0], "g"=>[127,255], "b"=>[0,0]]);

//generate a random colour of any sort
echo random_colour(["r"=>[0,255], "g"=>[0,255], "b"=>[0,255]]);

One problem might be: when using external ipl and defining HAVE_IPL in your project, the ctor

_IplImage::_IplImage(const cv::Mat& m)
{
    CV_Assert( m.dims <= 2 );
    cvInitImageHeader(this, m.size(), cvIplDepth(m.flags), m.channels());
    cvSetData(this, m.data, (int)m.step[0]);
}

found in ../OpenCV/modules/core/src/matrix.cpp is not used/instanciated and conversion fails.

You may reimplement it in a way similar to :

IplImage& FromMat(IplImage& img, const cv::Mat& m)
{
    CV_Assert(m.dims <= 2);
    cvInitImageHeader(&img, m.size(), cvIplDepth(m.flags), m.channels());
    cvSetData(&img, m.data, (int)m.step[0]);
    return img;
}

IplImage img;
FromMat(img,myMat);

I did a SQL query in a large number of OR (350). Postgres do it 437.80ms.

Now use IN:

23.18ms

"inappropriate ioctl for device" is the error string for the ENOTTY error. It used to be triggerred primarily by attempts to configure terminal properties (e.g. echo mode) on a file descriptor that was no terminal (but, say, a regular file), hence ENOTTY. More generally, it is triggered when doing an ioctl on a device that does not support that ioctl, hence the error string.

To find out what ioctl is being made that fails, and on what file descriptor, run the script under strace/truss. You'll recognize ENOTTY, followed by the actual printing of the error message. Then find out what file number was used, and what open() call returned that file number.

Just to update this question for mod_security 2.7.0+ - they turned off the ability to mitigate modsec via htaccess unless you compile it with the --enable-htaccess-config flag. Most hosts do not use this compiler option since it allows too lax security. Instead, vhosts in httpd.conf are your go-to option for controlling modsec.

Even if you do compile modsec with htaccess mitigation, there are less directives available. SecRuleEngine can no longer be used there for example. Here is a list that is available to use by default in htaccess if allowed (keep in mind a host may further limit this list with AllowOverride):

    - SecAction
    - SecRule

    - SecRuleRemoveByMsg
    - SecRuleRemoveByTag
    - SecRuleRemoveById

    - SecRuleUpdateActionById
    - SecRuleUpdateTargetById
    - SecRuleUpdateTargetByTag
    - SecRuleUpdateTargetByMsg

More info on the official modsec wiki

As an additional note for 2.x users: the IfModule should now look for mod_security2.c instead of the older mod_security.c

Yes, you can use for example in a button

Button b = new Button(this);
b.setBackgroundResource(R.drawable.selector_test);

Programmers may have questions about stack frames not in a broad term (that it is a singe entity in the stack that serves just one function call and keeps return address, arguments and local variables) but in a narrow sense – when the term stack frames is mentioned in context of compiler options.

Whether the author of the question has meant it or not, but the concept of a stack frame from the aspect of compiler options is a very important issue, not covered by the other replies here.

For example, Microsoft Visual Studio 2015 C/C++ compiler has the following option related to stack frames:

• /Oy (Frame-Pointer Omission)

GCC have the following:

• -fomit-frame-pointer (Don't keep the frame pointer in a register for functions that don't need one. This avoids the instructions to save, set up and restore frame pointers; it also makes an extra register available in many functions)

Intel C++ Compiler have the following:

• -fomit-frame-pointer (Determines whether EBP is used as a general-purpose register in optimizations)

which has the following alias:

• /Oy

Delphi has the following command-line option:

• -$W+ (Generate Stack Frames)

In that specific sense, from the compiler’s perspective, a stack frame is just the entry and exit code for the routine, that pushes an anchor to the stack – that can also be used for debugging and for exception handling. Debugging tools may scan the stack data and use these anchors for backtracing, while locating call sites in the stack, i.e. to display names of the functions in the order they have been called hierarchically. For Intel architecture, it is push ebp; mov ebp, esp or enter for entry and mov esp, ebp; pop ebp or leave for exit.

That’s why it is very important to understand for a programmer what a stack frame is in when it comes to compiler options – because the compiler can control whether to generate this code or not.

In some cases, the stack frame (entry and exit code for the routine) can be omitted by the compiler, and the variables will directly be accessed via the stack pointer (SP/ESP/RSP) rather than the convenient base pointer (BP/ESP/RSP). Conditions for omission of the stack frame, for example:

• the function is a leaf function (i.e. an end-entity that doesn’t call other functions);
• there are no try/finally or try/except or similar constructs, i.e. no exceptions are used;
• no routines are called with outgoing parameters on the stack;
• the function has no parameters;
• the function has no inline assembly code;
• etc...

Omitting stack frames (entry and exit code for the routine) can make code smaller and faster, but it may also negatively affect the debuggers’ ability to backtrace the data in the stack and to display it to the programmer. These are the compiler options that determine under which conditions a function should have the entry and exit code, for example: (a) always, (b) never, (c) when needed (specifying the conditions).

Another cool trick is to run functions or subshells in background, not always feasible though

name(){
  echo "Do something"
  sleep 1
}

# put a function in the background
name &
#Example taken from here
#https://bash.cyberciti.biz/guide/Putting_functions_in_background

Running a subshell in the background

(echo "started"; sleep 15; echo "stopped") &

.sort(), in pymongo, takes key and direction as parameters.

So if you want to sort by, let's say, id then you should .sort("_id", 1)

For multiple fields:

.sort([("field1", pymongo.ASCENDING), ("field2", pymongo.DESCENDING)])

On a mac / in Terminal:

1. Show Inspector (right click within the terminal window or Shell >Show Inspector)
2. click the Settings icon above "running processes"
3. choose from the list of options under "Signal Process Group" (Kill, terminate, interrupt, etc).

FTP protocol may be blocked by your ISP firewall, try connecting via SFTP (i.e. use 22 for port num instead of 21 which is simply FTP).

For more information try this link.

// if you do the input like this
<input id="'.$userid.'" value="'.$userid.'"  name="invite['.$userid.']" type="checkbox">

// you can access the value directly like this:
$invite = $_POST['invite'][$userid];

Even if you use exceptions, it still output errors.
You have to set $MailerDebug to False wich should look like this

$mail = new PHPMailer();
$mail->MailerDebug = false;

I ran into this issue when I use djangocms and added a plugin (in my case: djangocms-cascade). Of course I had to add the plugin to the INSTALLED_APPS. But the order is here important.

To place 'cmsplugin_cascade' before 'cms' solved the issue.

dict.update() looks like it will do what you want...

>> orig.update(extra)
>>> orig
{'A': 1, 'C': 3, 'B': 2, 'E': 5, 'D': 4}
>>> 

Perhaps, though, you don't want to update your original dictionary, but work on a copy:

>>> dest = orig.copy()
>>> dest.update(extra)
>>> orig
{'A': 1, 'C': 3, 'B': 2}
>>> dest
{'A': 1, 'C': 3, 'B': 2, 'E': 5, 'D': 4}

Requirement: Function to find a string in an array.
This is a slight simplification of DevSolar's solution in that it uses the arguments passed rather than copying them.

myarray=('foobar' 'foxbat')

function isInArray() {
  local item=$1
  shift
  for one in $@; do
    if [ $one = $item ]; then
      return 0   # found
    fi
  done
  return 1       # not found
}

var='foobar'
if isInArray $var ${myarray[@]}; then
  echo "$var found in array"
else
  echo "$var not found in array"
fi 

SELECT CAST(height AS DECIMAL(18,0)) / 10

Edit: How this works under the hood?

The result type is the same as the type of both arguments, or, if they are different, it is determined by the data type precedence table. You can therefore cast either argument to something non-integral.

Now DECIMAL(18,0), or you could equivalently write just DECIMAL, is still a kind of integer type, because that default scale of 0 means "no digits to the right of the decimal point". So a cast to it might in different circumstances work well for rounding to integers - the opposite of what we are trying to accomplish.

However, DECIMALs have their own rules for everything. They are generally non-integers, but always exact numerics. The result type of the DECIMAL division that we forced to occur is determined specially to be, in our case, DECIMAL(29,11). The result of the division will therefore be rounded to 11 places which is no concern for division by 10, but the rounding becomes observable when dividing by 3. You can control the amount of rounding by manipulating the scale of the left hand operand. You can also round more, but not less, by placing another ROUND or CAST operation around the whole expression.

Identical mechanics governs the simpler and nicer solution in the accepted answer:

  SELECT height / 10.0

In this case, the type of the divisor is DECIMAL(3,1) and the type of the result is DECIMAL(17,6). Try dividing by 3 and observe the difference in rounding.

If you just hate all this talk of precisions and scales, and just want SQL server to perform all calculations in good old double precision floating point arithmetics from some point on, you can force that, too:

SELECT height / CAST(10 AS FLOAT(53))

or equivalently just

SELECT height / CAST (10 AS FLOAT)

Sure, you just use a HttpWebRequest.

Once you have the HttpWebRequest set up, you can save the response stream to a file StreamWriter(Either BinaryWriter, or a TextWriter depending on the mimetype.) and you have a file on your hard drive.

EDIT: Forgot about WebClient. That works good unless as long as you only need to use GET to retrieve your file. If the site requires you to POST information to it, you'll have to use a HttpWebRequest, so I'm leaving my answer up.

In Python 3, / is float division

In Python 2, / is integer division (assuming int inputs)

In both 2 and 3, // is integer division

(To get float division in Python 2 requires either of the operands be a float, either as 20. or float(20))

1. Just finsih all of your queries with ;
2. Select all queries you need (inserts, selects, ...).
3. Push or F5 or F9 both Works.

Not necessary to execute as script

In Python I have been using the Flask-CORS library with great success. It makes dealing with CORS super easy and painless. I added some code from the library's documentation below.

Installing:

$ pip install -U flask-cors

Simple example that allows CORS for all domains on all routes:

from flask import Flask
from flask_cors import CORS

app = Flask(__name__)
CORS(app)

@app.route("/")
def helloWorld():
  return "Hello, cross-origin-world!"

For more specific examples see the documentation. I have used the simple example above to get around the CORS issue in an ionic application I am building that has to access a separate flask server.

Indeed there is.

chmod a+x is relative to the current state and just sets the x flag. So a 640 file becomes 751 (or 750?), a 644 file becomes 755.

chmod 755, however, sets the mask as written: rwxr-xr-x, no matter how it was before. It is equivalent to chmod u=rwx,go=rx.

Here's my awesome script, it creates a new terminal window if needed and switches to the directory Finder is in if Finder is frontmost. It has all the machinery you need to run commands.

on run
    -- Figure out if we want to do the cd (doIt)
    -- Figure out what the path is and quote it (myPath)
    try
        tell application "Finder" to set doIt to frontmost
        set myPath to finder_path()
        if myPath is equal to "" then
            set doIt to false
        else
            set myPath to quote_for_bash(myPath)
        end if
    on error
        set doIt to false
    end try

    -- Figure out if we need to open a window
    -- If Terminal was not running, one will be opened automatically
    tell application "System Events" to set isRunning to (exists process "Terminal")

    tell application "Terminal"
        -- Open a new window
        if isRunning then do script ""
        activate
        -- cd to the path
        if doIt then
            -- We need to delay, terminal ignores the second do script otherwise
            delay 0.3
            do script " cd " & myPath in front window
        end if
    end tell
end run

on finder_path()
    try
        tell application "Finder" to set the source_folder to (folder of the front window) as alias
        set thePath to (POSIX path of the source_folder as string)
    on error -- no open folder windows
        set thePath to ""
    end try

    return thePath
end finder_path

-- This simply quotes all occurrences of ' and puts the whole thing between 's
on quote_for_bash(theString)
    set oldDelims to AppleScript's text item delimiters
    set AppleScript's text item delimiters to "'"
    set the parsedList to every text item of theString
    set AppleScript's text item delimiters to "'\\''"
    set theString to the parsedList as string
    set AppleScript's text item delimiters to oldDelims
    return "'" & theString & "'"
end quote_for_bash

In regards to your question about newlines and carriage returns:

I would recommend using the predefined global constant PHP_EOL as it will solve any cross-platform compatibility issues.

This question has been raised on SO beforehand and you can find out more information by reading "When do I use the PHP constant PHP_EOL"

This is Stack Overflow so I assume you want code:

All following code assumes that you want to create a symbolic link named /tmp/link that links to /tmp/realfile.

CAUTION: Although this code checks for errors, it does NOT check if /tmp/realfile actually exists ! This is because a dead link is still valid and depending on your code you might (rarely) want to create the link before the real file.

Shell (bash, zsh, ...)

#!/bin/sh
ln -s /tmp/realfile /tmp/link

Real simple, just like you would do it on the command line (which is the shell). All error handling is done by the shell interpreter. This code assumes that you have a working shell interpreter at /bin/sh .

If needed you could still implement your own error handling by using the $? variable which will only be set to 0 if the link was successfully created.

C and C++

#include <unistd.h>
#include <stdio.h>

int main () {
  if( symlink("/tmp/realfile", "/tmp/link") != 0 )
    perror("Can't create the symlink");
}

symlink only returns 0 when the link can be created. In other cases I'm using perror to tell more about the problem.

Perl

#!/usr/bin/perl
if( symlink("/tmp/realfile", "/tmp/link") != 1) {
  print STDERR "Can't create the symlink: $!\n"
}

This code assumes you have a perl 5 interpreter at /usr/bin/perl. symlink only returns 1 if the link can be created. In other cases I'm printing the failure reason to the standard error output.

I think you want to do this instead:

from __future__ import with_statement

with open("out.txt","wt") as file_out:
    with open("in.txt") as file_in:
        for line in file_in:
            file_out.write(line)

Somehow, this fix the issue out of no reason.

./gradlew clean assemble and then install the app.

This problem could be solved as mentioned using the .on on jQuery 1.7+ versions.

Unfortunately, this didn't work within my code (and I have 1.11) so I used:

$('body').delegate('.logout-link','click',function() {

http://api.jquery.com/delegate/

As of jQuery 3.0, .delegate() has been deprecated. It was superseded by the .on() method since jQuery 1.7, so its use was already discouraged. For earlier versions, however, it remains the most effective means to use event delegation. More information on event binding and delegation is in the .on() method. In general, these are the equivalent templates for the two methods:

// jQuery 1.4.3+
$( elements ).delegate( selector, events, data, handler );
// jQuery 1.7+
$( elements ).on( events, selector, data, handler );

This comment might help others :) !

I don't think the accepted answer is entirely correct. It is order dependent. Here is an example that will not work correctly with an approach from the answer.

create table xxx (
    id varchar(64),
    is_enabled boolean
);

insert into xxx (id, is_enabled) values ('1',true);
insert into xxx (id, is_enabled) values ('2',true);
insert into xxx (id, is_enabled) values ('3',true);

UPDATE public.xxx AS pns
        SET is_enabled         = u.is_enabled
            FROM (
            VALUES
         (
            '3',
            false
         ,
            '1',
            true
         ,
            '2',
            false
         )
        ) AS u(id, is_enabled)
            WHERE u.id = pns.id;

select * from xxx;

So the question still stands, is there a way to do it in an order independent way?

---- after trying a few things this seems to be order independent

UPDATE public.xxx AS pns
        SET is_enabled         = u.is_enabled
            FROM (
            SELECT '3' as id, false as is_enabled UNION
            SELECT '1' as id, true as is_enabled UNION
            SELECT '2' as id, false as is_enabled
         ) as u
            WHERE u.id = pns.id;

1) Ensure that the enable32BitAppOnWin64 setting for the "SharePoint Central Administration" app pool is set to False, and the same for the "SharePoint Web Services Root" app pool

2) Edit applicationHost.config:

bitness64 being the magic word here

I'm not sure whether it works with two syncing but for the --delete to work you also need to add the --recursive parameter as well.

With C++0x we can use lambda functions:

using namespace std;
vector<pair<int, int>> v;
        .
        .
sort(v.begin(), v.end(),
     [](const pair<int, int>& lhs, const pair<int, int>& rhs) {
             return lhs.second < rhs.second; } );

In this example the return type bool is implicitly deduced.

Lambda return types

When a lambda-function has a single statement, and this is a return-statement, the compiler can deduce the return type. From C++11, §5.1.2/4:

...

• If the compound-statement is of the form { return expression ; } the type of the returned expression after lvalue-to-rvalue conversion (4.1), array-to-pointer conversion (4.2), and function-to-pointer conversion (4.3);
• otherwise, void.

To explicitly specify the return type use the form []() -> Type { }, like in:

sort(v.begin(), v.end(),
     [](const pair<int, int>& lhs, const pair<int, int>& rhs) -> bool {
             if (lhs.second == 0)
                 return true;
             return lhs.second < rhs.second; } );

This is usually caused by truncation (the incoming value is too large to fit in the destination column). Unfortunately SSIS will not tell you the name of the offending column. I use a third-party component to get this information: http://naseermuhammed.wordpress.com/tips-tricks/getting-error-column-name-in-ssis/

It will prints the string"something" three times.

JLabel[] labels = {new JLabel(), new JLabel(), new JLabel()};                   

for ( JLabel label : labels )                  
 {              
   label.setText("something");  

 panel.add(label);             
 }

With the Length property.

int[] foo = new int[10];
int n = foo.Length; // n == 10

GoalSeek will throw an "Invalid Reference" error if the GoalSeek cell contains a value rather than a formula or if the ChangingCell contains a formula instead of a value or nothing.

The GoalSeek cell must contain a formula that refers directly or indirectly to the ChangingCell; if the formula doesn't refer to the ChangingCell in some way, GoalSeek either may not converge to an answer or may produce a nonsensical answer.

I tested your code with a different GoalSeek formula than yours (I wasn't quite clear whether some of the terms referred to cells or values).

For the test, I set:

  the GoalSeek cell  H18 = (G18^3)+(3*G18^2)+6
  the Goal cell      H32 =  11
  the ChangingCell   G18 =  0 

The code was:

Sub GSeek()
    With Worksheets("Sheet1")
        .Range("H18").GoalSeek _
        Goal:=.Range("H32").Value, _
        ChangingCell:=.Range("G18")
    End With
End Sub

And the code produced the (correct) answer of 1.1038, the value of G18 at which the formula in H18 produces the value of 11, the goal I was seeking.

You should declare metab as integer and then use arithmetic evaluation

declare -i metab num
...
num+=metab
...

For more information see https://www.gnu.org/software/bash/manual/html_node/Shell-Arithmetic.html#Shell-Arithmetic

Try this

select * from mytable
where p1 not like '%[^0-9]%' and substring(p1,1,1)='5'

Of course, you'll need to adjust the substring value, but the rest should work...

-If you just want the list to scroll up\dawn to a specific position:

myListView.smoothScrollToPosition(i);

-if you want to get the position of a specific item in myListView:

myListView.getItemAtPosition(i);

-also this myListView.getVerticalScrollbarPosition(i);can helps you.

Good Luck :)

okay, i know this is way too late. but i had the same requirement. i solved like this

1.First create a xml file (example: border_shadow.xml) in "drawable" folder and copy the below code into it.

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >

<item>
    <shape>
        <!-- set the shadow color here -->
        <stroke
            android:width="2dp"
            android:color="#7000" />

        <!-- setting the thickness of shadow (positive value will give shadow on that side) -->

        <padding
            android:bottom="2dp"
            android:left="2dp"
            android:right="-1dp"
            android:top="-1dp" />

        <corners android:radius="3dp" />
    </shape>
</item>

<!-- Background -->

<item>
    <shape>
        <solid android:color="#fff" />
        <corners android:radius="3dp" />
    </shape>
</item>

2.now on the layout where you want the shadow(example: LinearLayout) add this in android:background

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_margin="8dip"
    android:background="@drawable/border_shadow"
    android:orientation="vertical">

and that worked for me.

I had this same problem and had to refer to the php manual which told me the mysql and mysqli extensions require libmysql.dll to load. I searched for it under C:\windows\system32 (windows 7) and could not find, so I downloaded it here and placed it in my C:\windows\system32. I restarted Apache and everything worked fine. Took me 3 days to figure out, hope it helps.

Functions to search through and print dicts, like JSON. *made in python 3

Search:

def pretty_search(dict_or_list, key_to_search, search_for_first_only=False):
    """
    Give it a dict or a list of dicts and a dict key (to get values of),
    it will search through it and all containing dicts and arrays
    for all values of dict key you gave, and will return you set of them
    unless you wont specify search_for_first_only=True

    :param dict_or_list: 
    :param key_to_search: 
    :param search_for_first_only: 
    :return: 
    """
    search_result = set()
    if isinstance(dict_or_list, dict):
        for key in dict_or_list:
            key_value = dict_or_list[key]
            if key == key_to_search:
                if search_for_first_only:
                    return key_value
                else:
                    search_result.add(key_value)
            if isinstance(key_value, dict) or isinstance(key_value, list) or isinstance(key_value, set):
                _search_result = pretty_search(key_value, key_to_search, search_for_first_only)
                if _search_result and search_for_first_only:
                    return _search_result
                elif _search_result:
                    for result in _search_result:
                        search_result.add(result)
    elif isinstance(dict_or_list, list) or isinstance(dict_or_list, set):
        for element in dict_or_list:
            if isinstance(element, list) or isinstance(element, set) or isinstance(element, dict):
                _search_result = pretty_search(element, key_to_search, search_result)
                if _search_result and search_for_first_only:
                    return _search_result
                elif _search_result:
                    for result in _search_result:
                        search_result.add(result)
    return search_result if search_result else None

Print:

def pretty_print(dict_or_list, print_spaces=0):
    """
    Give it a dict key (to get values of),
    it will return you a pretty for print version
    of a dict or a list of dicts you gave.

    :param dict_or_list: 
    :param print_spaces: 
    :return: 
    """
    pretty_text = ""
    if isinstance(dict_or_list, dict):
        for key in dict_or_list:
            key_value = dict_or_list[key]
            if isinstance(key_value, dict):
                key_value = pretty_print(key_value, print_spaces + 1)
                pretty_text += "\t" * print_spaces + "{}:\n{}\n".format(key, key_value)
            elif isinstance(key_value, list) or isinstance(key_value, set):
                pretty_text += "\t" * print_spaces + "{}:\n".format(key)
                for element in key_value:
                    if isinstance(element, dict) or isinstance(element, list) or isinstance(element, set):
                        pretty_text += pretty_print(element, print_spaces + 1)
                    else:
                        pretty_text += "\t" * (print_spaces + 1) + "{}\n".format(element)
            else:
                pretty_text += "\t" * print_spaces + "{}: {}\n".format(key, key_value)
    elif isinstance(dict_or_list, list) or isinstance(dict_or_list, set):
        for element in dict_or_list:
            if isinstance(element, dict) or isinstance(element, list) or isinstance(element, set):
                pretty_text += pretty_print(element, print_spaces + 1)
            else:
                pretty_text += "\t" * print_spaces + "{}\n".format(element)
    else:
        pretty_text += str(dict_or_list)
    if print_spaces == 0:
        print(pretty_text)
    return pretty_text

If you have less than 4 rows, you can use the head function ( head(data, 4) or head(data, n=4)) and it works like a charm. But, assume we have the following dataset with 15 rows

>data <- data <- read.csv("./data.csv", sep = ";", header=TRUE)

>data
 LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no
11   6.900  12   59.3    no   male        no
12   6.100  13   59.4    no   male        no
13   6.110  14   59.5    no   male        no
14   6.120  15   59.6    no   male        no
15   6.130  16   59.7    no   male        no

Let's say, you want to select the first 10 rows. The easiest way to do it would be data[1:10, ].

> data[1:10,]
   LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no

However, let's say you try to retrieve the first 19 rows and see the what happens - you will have missing values

> data[1:19,]
     LungCap Age Height Smoke Gender Caesarean
1      6.475   6   62.1    no   male        no
2     10.125  18   74.7   yes female        no
3      9.550  16   69.7    no female       yes
4     11.125  14   71.0    no   male        no
5      4.800   5   56.9    no   male        no
6      6.225  11   58.7    no female        no
7      4.950   8   63.3    no   male       yes
8      7.325  11   70.4    no  male         no
9      8.875  15   70.5    no   male        no
10     6.800  11   59.2    no   male        no
11     6.900  12   59.3    no   male        no
12     6.100  13   59.4    no   male        no
13     6.110  14   59.5    no   male        no
14     6.120  15   59.6    no   male        no
15     6.130  16   59.7    no   male        no
NA        NA  NA     NA  <NA>   <NA>      <NA>
NA.1      NA  NA     NA  <NA>   <NA>      <NA>
NA.2      NA  NA     NA  <NA>   <NA>      <NA>
NA.3      NA  NA     NA  <NA>   <NA>      <NA>

and with the head() function,

> head(data, 19) # or head(data, n=19)
   LungCap Age Height Smoke Gender Caesarean
1    6.475   6   62.1    no   male        no
2   10.125  18   74.7   yes female        no
3    9.550  16   69.7    no female       yes
4   11.125  14   71.0    no   male        no
5    4.800   5   56.9    no   male        no
6    6.225  11   58.7    no female        no
7    4.950   8   63.3    no   male       yes
8    7.325  11   70.4    no  male         no
9    8.875  15   70.5    no   male        no
10   6.800  11   59.2    no   male        no
11   6.900  12   59.3    no   male        no
12   6.100  13   59.4    no   male        no
13   6.110  14   59.5    no   male        no
14   6.120  15   59.6    no   male        no
15   6.130  16   59.7    no   male        no

Hope this help!

Windows->Preferences->Server

Server Timeout can be specified there.

or another method via the Servers tab here:

http://henneberke.wordpress.com/2009/09/28/fixing-eclipse-tomcat-timeout/

What you're asking for isn't impossible, but it's probably not what you actually want.

Instead of trying to save the screen output to a file, just write the output to a file instead of to the screen.

Like this:

with open('outfile.txt', 'w') as outfile:
    print >>outfile, 'Data collected on:', input['header']['timestamp'].date()

Just add that >>outfile into all your print statements, and make sure everything is indented under that with statement.

More generally, it's better to use string formatting rather than magic print commas, which means you can use the write function instead. For example:

outfile.write('Data collected on: {}'.format(input['header']['timestamp'].date()))

But if print is already doing what you want as far as formatting goes, you can stick with it for now.

What if you've got some Python script someone else wrote (or, worse, a compiled C program that you don't have the source to) and can't make this change? Then the answer is to wrap it in another script that captures its output, with the subprocess module. Again, you probably don't want that, but if you do:

output = subprocess.check_output([sys.executable, './otherscript.py'])
with open('outfile.txt', 'wb') as outfile:
    outfile.write(output)

I use the program SQLYOG where I can make a select query, point at the results and choose export as sql. This gives me the insert statements.

Your problem is that when you do this:

a = Button(win, text="plant", command=setText("plant"))

it tries to evaluate what to set for the command. So when instantiating the Button object, it actually calls setText("plant"). This is wrong, because you don't want to call the setText method yet. Then it takes the return value of this call (which is None), and sets that to the command of the button. That's why clicking the button does nothing, because there is no command set for it.

If you do as Milan Skála suggested and use a lambda expression instead, then your code will work (assuming you fix the indentation and the parentheses).

Instead of command=setText("plant"), which actually calls the function, you can set command=lambda:setText("plant") which specifies something which will call the function later, when you want to call it.

If you don't like lambdas, another (slightly more cumbersome) way would be to define a pair of functions to do what you want:

def set_to_plant():
    set_text("plant")
def set_to_animal():
    set_text("animal")

and then you can use command=set_to_plant and command=set_to_animal - these will evaluate to the corresponding functions, but are definitely not the same as command=set_to_plant() which would of course evaluate to None again.

// Returns bottom offset value + or - from viewport top
function offsetBottom(el, i) { i = i || 0; return $(el)[i].getBoundingClientRect().bottom }

// Returns right offset value
function offsetRight(el, i) { i = i || 0; return $(el)[i].getBoundingClientRect().right }

var bottom = offsetBottom('#logo');
var right = offsetRight('#logo');

This will find the distance from the top and left of your viewport to your element's exact edge and nothing beyond that. So say your logo was 350px and it had a left margin of 50px, variable 'right' will hold a value of 400 because that's the actual distance in pixels it took to get to the edge of your element, no matter if you have more padding or margin to the right of it.

If your box-sizing CSS property is set to border-box it will continue to work just as if it were set as the default content-box.

The Content-Length header is a number denoting an the exact byte length of the HTTP body. The HTTP body starts immediately after the first empty line that is found after the start-line and headers.

Generally the Content-Length header is used for HTTP 1.1 so that the receiving party knows when the current response^* has finished, so the connection can be reused for another request.

_{^{* ...or request, in the case of request methods that have a body, such as POST, PUT or PATCH}}

Alternatively, Content-Length header can be omitted and a chunked Transfer-Encoding header can be used.

If both Content-Length and Transfer-Encoding headers are missing, then at the end of the response the connection must be closed.

The following resource is a guide that I found very useful when learning about HTTP:

HTTP Made Really Easy.

In this moment with the last version of the C# driver (2.3.0) the only way I found to get the database name specified in connection string is this:

var connectionString = @"mongodb://usr:[email protected],srv2.acme.net,srv3.acme.net/dbName?replicaSet=rset";
var mongoUrl = new MongoUrl(connectionString);
var dbname = mongoUrl.DatabaseName;
var db = new MongoClient(mongoUrl).GetDatabase(dbname);
db.GetCollection<MyType>("myCollectionName");

You need to indicate the groupId, the artifactId and the version for your artifact:

mvn install:install-file \
  -DgroupId=javax.transaction \
  -DartifactId=jta \
  -Dpackaging=jar \
  -Dversion=1.0.1B \
  -Dfile=jta-1.0.1B.jar \
  -DgeneratePom=true

Null means nothing. Its just a literal. Null is the value of reference variable. But empty string is blank.It gives the length=0. Empty string is a blank value,means the string does not have any thing.

import re

htmlString = '</dd><dt> Fine, thank you.&#160;</dt><dd> Molt bé, gràcies. (<i>mohl behh, GRAH-syuhs</i>)'

SearchStr = '(\<\/dd\>\<dt\>)+ ([\w+\,\.\s]+)([\&\#\d\;]+)(\<\/dt\>\<dd\>)+ ([\w\,\s\w\s\w\?\!\.]+) (\(\<i\>)([\w\s\,\-]+)(\<\/i\>\))'

Result = re.search(SearchStr.decode('utf-8'), htmlString.decode('utf-8'), re.I | re.U)

print Result.groups()

Works that way. The expression contains non-latin characters, so it usually fails. You've got to decode into Unicode and use re.U (Unicode) flag.

I'm a beginner too and I faced that issue a couple of times myself.

Works fine for me

See example here. http://jsfiddle.net/blowsie/c6VAy/

Make sure your jquery is inside $(document).ready function or similar.

Also you can improve your code by using jquery data

$('#amount').data('min','1000');

<div id="amount" data-min=""></div>

Update,

A working example of your full code (pretty much) here. http://jsfiddle.net/blowsie/c6VAy/3/

m.put(null,null); // here key=null, value=null
m.put(null,a);    // here also key=null, and value=a

Duplicate keys are not allowed in hashmap.
However,value can be duplicated.

I got this answer from the book Programming iOS 7, section Bar Position and Bar Metrics

If a navigation bar or toolbar — or a search bar (discussed earlier in this chapter) — is to occupy the top of the screen, the iOS 7 convention is that its height should be increased to underlap the transparent status bar. To make this possible, iOS 7 introduces the notion of a bar position.

UIBarPositionTopAttached

Specifies that the bar is at the top of the screen, as well as its containing view. Bars with this position draw their background extended upwards, allowing their background content to show through the status bar. Available in iOS 7.0 and later.

Adding on to superM's and Jeff's answer,

If there are 2 views in the LinearLayout, the first with a layout_weight of 1, the second with a layout_weight of 2 and no weightSum is specified, by default, the weightSum is calculated to be 3 (sum of the weights of the children) and the first view takes 1/3 of the space while the second takes 2/3.

However, if we were to specify the weightSum as 5, the first would take 1/5th of the space while the second would take 2/5th. So a total of 3/5th of the space would be occupied by the layout keeping the rest empty.

public void CopyStream(Stream stream, string destPath)
{
  using (var fileStream = new FileStream(destPath, FileMode.Create, FileAccess.Write))
  {
    stream.CopyTo(fileStream);
  }
}

There's also the QueryString module's parse() method:

var http = require('http'),
    queryString = require('querystring');

http.createServer(function (oRequest, oResponse) {

    var oQueryParams;

    // get query params as object
    if (oRequest.url.indexOf('?') >= 0) {
        oQueryParams = queryString.parse(oRequest.url.replace(/^.*\?/, ''));

        // do stuff
        console.log(oQueryParams);
    }

    oResponse.writeHead(200, {'Content-Type': 'text/plain'});
    oResponse.end('Hello world.');

}).listen(1337, '127.0.0.1');

We ran into this problem on IE 11 on Windows 7 and Windows 10. We discovered what exactly the problem was by turning on debugging capabilities for IE (IE > Internet Options > Advanced tab > Browsing > Uncheck Disable script debugging (Internet Explorer)). This feature is typically checked on within our environment by the domain admins.

The problem was because we were using the console.debug(...) method within our JavaScript code. The assumption made by the developer (me) was I did not want anything written if the client Developer Tools console was not explicitly open. While Chrome and Firefox seemed to agree with this strategy, IE 11 did not like it one bit. By changing all the console.debug(...) statements to console.log(...) statements, we were able to continue to log additional information in the client console and view it when it was open, but otherwise keep it hidden from the typical user.

I think bundle executable is on :

/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/gems/1.8/gems/bin and it's not in your $PATH

Try this:

var date = new Date();
console.log(date instanceof Date && !isNaN(date.valueOf()));

This should return true.

UPDATED: Added isNaN check to handle the case commented by Julian H. Lam

Apple provides a sample app which does exactly this:

Reachability

i was trying trying to GRANT read-only privileges to a particular table to a user called walters-ro. So when i ran the sql command # GRANT SELECT ON table_name TO walters-ro; --- i got the following error..`syntax error at or near “-”

The solution to this was basically putting the user_name into double quotes since there is a dash(-) between the name.

# GRANT SELECT ON table_name TO "walters-ro";

That solved the problem.

If you need to access those certs programmatically it is best to not use the file at all, but access it via the trust manager. The following code is from a OpenJDK Test case (which makes sure the built cacerts collection is not empty):

TrustManagerFactory trustManagerFactory =
    TrustManagerFactory.getInstance("PKIX");
trustManagerFactory.init((KeyStore) null);
TrustManager[] trustManagers =
    trustManagerFactory.getTrustManagers();
X509TrustManager trustManager =
    (X509TrustManager) trustManagers[0];
X509Certificate[] acceptedIssuers =
    trustManager.getAcceptedIssuers();

So you don’t have to deal with file location or keystore password.

Option 1: $http service

AngularJS provides the $http service that does exactly what you want: Sending AJAX requests to web services and receiving data from them, using JSON (which is perfectly for talking to REST services).

To give an example (taken from the AngularJS documentation and slightly adapted):

$http({ method: 'GET', url: '/foo' }).
  success(function (data, status, headers, config) {
    // ...
  }).
  error(function (data, status, headers, config) {
    // ...
  });

Option 2: $resource service

Please note that there is also another service in AngularJS, the $resource service which provides access to REST services in a more high-level fashion (example again taken from AngularJS documentation):

var Users = $resource('/user/:userId', { userId: '@id' });
var user = Users.get({ userId: 123 }, function () {
  user.abc = true;
  user.$save();
});

Option 3: Restangular

Moreover, there are also third-party solutions, such as Restangular. See its documentation on how to use it. Basically, it's way more declarative and abstracts more of the details away from you.

The ajax is going to be a javascript snippet that passes information to a small php file that does what you want. So in your page, instead of all that php, you want a little javascript, preferable jquery:

function fun()
{
    $.get('\addEmail.php', {email : $(this).val()}, function(data) {
        //here you would write the "you ve been successfully subscribed" div
    });
}

also you input would have to be:

<input type="button" value="subscribe" class="submit" onclick="fun();" />

last the file addEmail.php should look something like:

mysql_connect("localhost","root","");
mysql_select_db("eciticket_db");

error_reporting(E_ALL && ~E_NOTICE);

$email=mysql_real_escape_string($_GET['email']);
$sql="INSERT INTO newsletter_email(email) VALUES ('$email')";
$result=mysql_query($sql);
if($result){
echo "You have been successfully subscribed.";
}
 if(!$sql)
die(mysql_error());

mysql_close();

Also sergey is right, you should use mysqli. That's not everything, but enough to get you started.

I modified K3N's code to work for my purpose, and I added some comments to help others figure out how sessionStorage works.

<script>
    // Run on page load
    window.onload = function() {

        // If sessionStorage is storing default values (ex. name), exit the function and do not restore data
        if (sessionStorage.getItem('name') == "name") {
            return;
        }

        // If values are not blank, restore them to the fields
        var name = sessionStorage.getItem('name');
        if (name !== null) $('#inputName').val(name);

        var email = sessionStorage.getItem('email');
        if (email !== null) $('#inputEmail').val(email);

        var subject= sessionStorage.getItem('subject');
        if (subject!== null) $('#inputSubject').val(subject);

        var message= sessionStorage.getItem('message');
        if (message!== null) $('#inputMessage').val(message);
    }

    // Before refreshing the page, save the form data to sessionStorage
    window.onbeforeunload = function() {
        sessionStorage.setItem("name", $('#inputName').val());
        sessionStorage.setItem("email", $('#inputEmail').val());
        sessionStorage.setItem("subject", $('#inputSubject').val());
        sessionStorage.setItem("message", $('#inputMessage').val());
    }
</script>

On Ver 14.14 Distrib 5.7.19, for macos10.12 (x86_64), I logged in as: mysql -uroot -p then typed in the generated password by MySQL when you install it. Then..

ALTER USER 'root'@'localhost' IDENTIFIED BY '<new_password>';

Example:

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Ab1234'; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye $ mysql -uroot -p

And you can type in 'Ab1234'

$ echo '{ "foo": "lorem", "bar": "ipsum" }' \
> | python -c'import fileinput, json;
> print(json.dumps(json.loads("".join(fileinput.input())),
>                  sort_keys=True, indent=4))'
{
    "bar": "ipsum",
    "foo": "lorem"
}

NOTE: It is not the way to do it.

The same in Perl:

$ cat json.txt \
> | perl -0007 -MJSON -nE'say to_json(from_json($_, {allow_nonref=>1}), 
>                                     {pretty=>1})'
{
   "bar" : "ipsum",
   "foo" : "lorem"
}

Note 2: If you run

echo '{ "Düsseldorf": "lorem", "bar": "ipsum" }' \
| python -c'import fileinput, json;
print(json.dumps(json.loads("".join(fileinput.input())),
                 sort_keys=True, indent=4))'

the nicely readable word becomes \u encoded

{
    "D\u00fcsseldorf": "lorem", 
    "bar": "ipsum"
}

If the remainder of your pipeline will gracefully handle unicode and you'd like your JSON to also be human-friendly, simply use ensure_ascii=False

echo '{ "Düsseldorf": "lorem", "bar": "ipsum" }' \
| python -c'import fileinput, json;
print json.dumps(json.loads("".join(fileinput.input())),
                 sort_keys=True, indent=4, ensure_ascii=False)'

and you'll get:

{
    "Düsseldorf": "lorem", 
    "bar": "ipsum"
}

Maybe you want set -e:

www.davidpashley.com/articles/writing-robust-shell-scripts.html#id2382181:

This tells bash that it should exit the script if any statement returns a non-true return value. The benefit of using -e is that it prevents errors snowballing into serious issues when they could have been caught earlier. Again, for readability you may want to use set -o errexit.

I prefer this as an extension method:

public static async Task<IEnumerable<T>> WhenAll<T>(this IEnumerable<Task<T>> tasks)
{
    return await Task.WhenAll(tasks);
}

So that it is usable with method chaining:

var inputs = await events
  .Select(async ev => await ProcessEventAsync(ev))
  .WhenAll()

use awk

awk 'FNR==NR && /configs.*projectname\.conf/{f=1;next}f==0;END{ if(!f) { print "your line"}} ' file file

I have the same problem and it annoys me tremendously!!

I have always thought I was surposed to do as answer 2. That used to work in Intellij 9 (now using 10).

However I figured out that by adding these line to my maven pom file helps:

<build>
  ...
  <resources>
    <resource>
      <directory>src/main/resources</directory>
    </resource>
  </resources>
  ...
</build>

If you can depend on the Google libraries being there for you target market, then you may want to piggy back on GTalk functionality (registering a resource on the existing username - the intercepting it the messages as they come in with a BroadcastReceiver).

If not, and I expect you can't, then you're into bundling your own versions of XMPP. This is a pain, but may be made easier if XMPP is bundled separately as a standalone library.

You may also consider PubSubHubub, but I have no idea the network usage of it. I believe it is built atop of XMPP.

1. In Eclipse click Run → External Tools → External Tools Configurations.
2. Click the JRE tab.
3. Click the Installed JREs... button.
4. Click the Add button.
   (Select Standard VM, where applicable.)
5. Click the Directory button.
6. Browse to your JDK version (not JRE) of your installed Java
   (e.g. C:\Program Files\Java\jdk1.7.0_04).
7. Click Finish and OK.
8. Select the JDK at Separate JRE and click Close.
9. Re-run your Ant script — have fun!

This worked in a particular scenario I encountered.

((TextBox)GridView1.Rows[e.NewEditIndex].Cells[3].Controls[0]).Enabled = false;

Also for openCV in python you can do:

img = cv2.imread('myImage.jpg')
height, width, channels = img.shape 

As of iOS 10, videos now can autoplay, but only of they are either muted, or have no audio track. Yay!

In short:

• <video autoplay> elements will now honor the autoplay attribute, for elements which meet the following conditions:
  • <video> elements will be allowed to autoplay without a user gesture if their source media contains no audio tracks.
  • <video muted> elements will also be allowed to autoplay without a user gesture.
  • If a <video> element gains an audio track or becomes un-muted without a user gesture, playback will pause.
  • <video autoplay> elements will only begin playing when visible on-screen such as when they are scrolled into the viewport, made visible through CSS, and inserted into the DOM.
  • <video autoplay> elements will pause if they become non-visible, such as by being scrolled out of the viewport.

More info here: https://webkit.org/blog/6784/new-video-policies-for-ios/

Thanks to @Eswar. This code worked perfectly for me. I want to add certain things to the solution :

I was getting error : java.io.IOException: RESTEASY007550: Unable to get boundary for multipart

In order to solve this error, you should remove the "Content-Type" "multipart/form-data". It solved my problem.

As of October 2015, WP 4.3.1 I have found only two plugins actually affecting image locations as in “folders & subfolders”:

• Custom Upload Dir, but as the name says, just on upload. You can work from your %post_slug% or %categories%, upload your images in the context of these post/pages, and this tool will form subfolders from it. Which is great, SEO-wise.

  Or you just even ignore all that and mandate under “Build a path template” i.e. travels/france/paris-at-night to upload to that subdir of your WP-Uploads folder. (Of course you'd have to keep changing for the uploads to follow. Limiting my overall faith, that this is a stable long-term tool, despite 10.000+ active installs).

• Media File Manager allows to move already uploaded images and changes the paths in posts and pages using them accordingly. Its interface reminds of “Norton Commander 1.0” but it does the job. (Except for folder renames and deletes. So if you want to rename, better move images to a newly namend folder, then manually deleting the old.)

All of the following do NOT do the job:

• WP Media Folder is NOT changing actual direcory location, thus not actually changing paths to your images thus also not affecting image URLs. Despite its name, Folder is just their visualisation of yet-another-taxonomy. I invested $19 to learn that.

• Enhance Media Library is big, free and very popular (wordpress counts 40.000 installs) but is also not changing physical location and (thus) URLs. ? Thus the accepted answer is in my opinion wrong.

• Media File Manager advanced appears gone and is deemed dangerous!

With latest versions of docker, this is enough:

docker run -ti --privileged ubuntu bash

It will give access to all system resources (in /dev for instance)

Under advanced settings of firefox you should be able to set the encryption. By default SSL3.0 and TLS1.0 should be checked, so if firefox is trying to create ssl 3.0 connectons try unchecking the ssl 3.0s setting.

if that doesn't work, try searching the about:config page for "ssl2" My Firefox has settings with ssl2 set to false by default...

This has been discussed in many posts but still I could not figure out a solution with:

android:focusable="false"
android:focusableInTouchMode="false"
android:focusableInTouchMode="false"

Below solution will work with any of the ui components : Button, ImageButtons, ImageView, Textview. LinearLayout, RelativeLayout clicks inside a listview cell and also will respond to onItemClick:

Adapter class - getview():

    @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View view = convertView;
            if (view == null) {
                view = lInflater.inflate(R.layout.my_ref_row, parent, false);
            }
            final Organization currentOrg = organizationlist.get(position).getOrganization();

            TextView name = (TextView) view.findViewById(R.id.name);
            Button btn = (Button) view.findViewById(R.id.btn_check);
            btn.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    context.doSelection(currentOrg);

                }
            });

       if(currentOrg.isSelected()){
            btn.setBackgroundResource(R.drawable.sub_search_tick);
        }else{
            btn.setBackgroundResource(R.drawable.sub_search_tick_box);
        }

    }

In this was you can get the button clicked object to the activity. (Specially when you want the button to act as a check box with selected and non-selected states):

    public void doSelection(Organization currentOrg) {
        Log.e("Btn clicked ", currentOrg.getOrgName());
        if (currentOrg.isSelected() == false) {
            currentOrg.setSelected(true);
        } else {
            currentOrg.setSelected(false);
        }
        adapter.notifyDataSetChanged();

    }

Its very simple actually. Try this:

str1="a    b     c      d"
splitStr1 = str1.split()
print splitStr1

Everyone seems to be ignoring the "enum type" portion of your question.

While there is no canonical source for HTTP Status Codes there is an simple way to add any missing Status constants you need to those provided by javax.ws.rs.core.Response.Status without adding any additional dependencies to your project.

javax.ws.rs.core.Response.Status is just one implementation of the javax.ws.rs.core.Response.StatusType interface. You simply need to create your own implementation enum with definitions for the Status Codes that you want.

Core libraries like Javax, Jersey, etc. are written to the interface StatusType not the implementation Status (or they certainly should be). Since your new Status enum implements StatusType it can be used anyplace you would use a javax.ws.rs.core.Response.Status constant.

Just remember that your own code should also be written to the StatusType interface. This will enable you to use both your own Status Codes along side the "standard" ones.

Here's a gist with a simple implementation with constants defined for the "Informational 1xx" Status Codes: https://gist.github.com/avendasora/a5ed9acf6b1ee709a14a

...and when I got one how to process it (do I need to use Fourier Transform like it was instructed in the above post)?

If you want a "tap" then I think you are interested in amplitude more than frequency. So Fourier transforms probably aren't useful for your particular goal. You probably want to make a running measurement of the short-term (say 10 ms) amplitude of the input, and detect when it suddenly increases by a certain delta. You would need to tune the parameters of:

• what is the "short-term" amplitude measurement
• what is the delta increase you look for
• how quickly the delta change must occur

Although I said you're not interested in frequency, you might want to do some filtering first, to filter out especially low and high frequency components. That might help you avoid some "false positives". You could do that with an FIR or IIR digital filter; Fourier isn't necessary.

By configuring that the IDE projects are setup to use a Java 6 JRE or above sometimes does not remove the eclipse error. For me a restart of the Eclipe IDE helped.

To set it up, launch VS Code. Then open the Command Palette (??P) and type shell command to find the Shell Command: Install 'code' command in PATH command.enter image description here

https://code.visualstudio.com/docs/setup/mac

It's Simple.You can use

select (sysdate+2) as new_date from dual;

This will add two days from current date.

This worked for me on Ubuntu:

Stop MySQL server:

/etc/init.d/mysql stop

Start MySQL from the commandline:

/usr/sbin/mysqld

In another terminal enter mysql and issue:

grant all privileges on *.* to 'root'@'%' with grant option;

You may also want to add

grant all privileges on *.* to 'root'@'localhost' with grant option;

and optionally use a password as well.

flush privileges;

and then exit your MySQL prompt and then kill the mysqld server running in the foreground. Restart with

/etc/init.d/mysql start  

If you don't already have an array to map() like @FakeRainBrigand's answer, and want to inline this so the source layout corresponds to the output closer than @SophieAlpert's answer:

With ES2015 (ES6) syntax (spread and arrow functions)

http://plnkr.co/edit/mfqFWODVy8dKQQOkIEGV?p=preview

<tbody>
  {[...Array(10)].map((x, i) =>
    <ObjectRow key={i} />
  )}
</tbody>

Re: transpiling with Babel, its caveats page says that Array.from is required for spread, but at present (v5.8.23) that does not seem to be the case when spreading an actual Array. I have a documentation issue open to clarify that. But use at your own risk or polyfill.

Vanilla ES5

Array.apply

<tbody>
  {Array.apply(0, Array(10)).map(function (x, i) {
    return <ObjectRow key={i} />;
  })}
</tbody>

Inline IIFE

http://plnkr.co/edit/4kQjdTzd4w69g8Suu2hT?p=preview

<tbody>
  {(function (rows, i, len) {
    while (++i <= len) {
      rows.push(<ObjectRow key={i} />)
    }
    return rows;
  })([], 0, 10)}
</tbody>

Combination of techniques from other answers

Keep the source layout corresponding to the output, but make the inlined part more compact:

render: function () {
  var rows = [], i = 0, len = 10;
  while (++i <= len) rows.push(i);

  return (
    <tbody>
      {rows.map(function (i) {
        return <ObjectRow key={i} index={i} />;
      })}
    </tbody>
  );
}

With ES2015 syntax & Array methods

With Array.prototype.fill you could do this as an alternative to using spread as illustrated above:

<tbody>
  {Array(10).fill(1).map((el, i) =>
    <ObjectRow key={i} />
  )}
</tbody>

(I think you could actually omit any argument to fill(), but I'm not 100% on that.) Thanks to @FakeRainBrigand for correcting my mistake in an earlier version of the fill() solution (see revisions).

key

In all cases the key attr alleviates a warning with the development build, but isn't accessible in the child. You can pass an extra attr if you want the index available in the child. See Lists and Keys for discussion.

Preloading images using HTML <link> Tag

I believe most of the visitors of this question are looking for the answer of "How can I preload an image before the page's render starts?" and the best solution for this problem is using <link> tag because <link> tag is capable to block the further rendering of the page. See preemptive

These two value options of rel (relationship between the current document and the linked document) attribute are most relevant with the issue:

• prefetch : load the given resource while page rendering
• preload : load the given resource before page rendering starts

So if you want to load a resource (in this case it's an image) before the rendering process of <body> tag starts, use:

<link rel="preload" as="image" href="IMAGE_URL">

and if you want to load a resource while <body> is rendering but you are planning to use it later on dynamically and don't wanna bother the user with loading time, use:

<link rel="prefetch" href="RESOURCE_URL">

DataSet is collection of DataTables.... you can get the datatable from DataSet as below.

//here ds is dataset
DatTable dt = ds.Table[0]; /// table of dataset

If you're looking for a Facebook like scroll bar, then I'd highly recommend you take a look at this one:

http://rocha.la/jQuery-slimScroll

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

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

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

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

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

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

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

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

Is there any equivalent for the truststore? How can I view the trusted certificates?

Yes there is.The exact same command since keystore and truststore differ only in what they store i.e. private key or signed public key (certificate)

No other difference

If you have the milliseconds since the Epoch and want to convert them to a local date using the current local timezone, you can use

LocalDate date =
    Instant.ofEpochMilli(longValue).atZone(ZoneId.systemDefault()).toLocalDate();

but keep in mind that even the system’s default time zone may change, thus the same long value may produce different result in subsequent runs, even on the same machine.

Further, keep in mind that LocalDate, unlike java.util.Date, really represents a date, not a date and time.

Otherwise, you may use a LocalDateTime:

LocalDateTime date =
    LocalDateTime.ofInstant(Instant.ofEpochMilli(longValue), ZoneId.systemDefault());

Yes, you can do this, but I doubt that it would improve performances, unless your query has a real large latency.

You could do:

 UPDATE table SET posX=CASE
      WHEN id=id[1] THEN posX[1]
      WHEN id=id[2] THEN posX[2]
      ...
      ELSE posX END, posY = CASE ... END
 WHERE id IN (id[1], id[2], id[3]...);

The total cost is given more or less by: NUM_QUERIES * ( COST_QUERY_SETUP + COST_QUERY_PERFORMANCE ). This way, you knock down a bit on NUM_QUERIES, but COST_QUERY_PERFORMANCE goes up bigtime. If COST_QUERY_SETUP is really huge (e.g., you're calling some network service which is real slow) then, yes, you might still end up on top.

Otherwise, I'd try with indexing on id, or modifying the architecture.

In MySQL I think you could do this more easily with a multiple INSERT ON DUPLICATE KEY UPDATE (but am not sure, never tried).

first open bluestacks and go to settings > preferences > check the Enable Android Debug Bridge (ADB) and press Change path button, then select adb path. (default location: %LocalAppData%\Android\sdk\platform-tools)

then install one apk in emulator (by click the installed apps > install apk in bluestacks home screen)

after doing this works run cmd by administrator and got to adb path then run this command:

adb connect localhost:5555

now you can open VSCodde or AndroidStudio and select BlueStacks emulator.

This work for me!

$(document).ready(function() {
    $(document).on("click", "#tableId tbody tr", function() {
        //some think
    });
});

With a running instance of myExecutableName having a PID 15073:

hitting Tab twice after $ gdb myExecu in the command line, will automagically autocompletes to:

$ gdb myExecutableName 15073

and will attach gdb to this process. That's nice!

If you have YAML that conforms to the YAML 1.2 specification (released 2009) then you should use ruamel.yaml (disclaimer: I am the author of that package). It is essentially a superset of PyYAML, which supports most of YAML 1.1 (from 2005).

If you want to be able to preserve your comments when round-tripping, you certainly should use ruamel.yaml.

Upgrading @Jon's example is easy:

import ruamel.yaml as yaml

with open("example.yaml") as stream:
    try:
        print(yaml.safe_load(stream))
    except yaml.YAMLError as exc:
        print(exc)

Use safe_load() unless you really have full control over the input, need it (seldom the case) and know what you are doing.

If you are using pathlib Path for manipulating files, you are better of using the new API ruamel.yaml provides:

from ruamel.yaml import YAML
from pathlib import Path

path = Path('example.yaml')
yaml = YAML(typ='safe')
data = yaml.load(path)

Create a migration file

rails generate migration add_references_to_uploads user:references

Default foreign key name

This would create a user_id column in uploads table as a foreign key

class AddReferencesToUploads < ActiveRecord::Migration[5.2]
  def change
    add_reference :uploads, :user, foreign_key: true
  end
end

user model:

class User < ApplicationRecord
  has_many :uploads
end

upload model:

class Upload < ApplicationRecord
  belongs_to :user
end

Customize foreign key name:

add_reference :uploads, :author, references: :user, foreign_key: true

This would create an author_id column in the uploads tables as the foreign key.

user model:

class User < ApplicationRecord
  has_many :uploads, foreign_key: 'author_id'
end

upload model:

class Upload < ApplicationRecord
  belongs_to :user
end

You can check Visual Studio Downloads for available Visual Studio Community, Visual Studio Professional, Visual Studio Enterprise and Visual Studio Code download links.

Update!

There is no direct links of Visual Studio 2015 at Visual Studio Downloads anymore. but the below links still works.

OR simply click on direct links below (for .iso/.exe file):

• Visual Studio Enterprise 2015 with Update 3 (7.22 GB)
• Visual Studio Professional 2015 with Update 3 (7.22 GB)
• Visual Studio Community 2015 with Update 3 (7.19 GB)

VSCode area:

• Windows
  • 64-bit
  • 32-bit
• Linux (.deb)
  • 64-bit
  • 32-bit
• Linux (.rpm)
  • 64-bit
  • 32-bit
• Mac

Please try this: playButton = (Button) findViewById(R.id.play); playButton.setVisibility(View.INVISIBLE); I think this will do it.

In First activity:

ArrayList<ContactBean> fileList = new ArrayList<ContactBean>();
Intent intent = new Intent(MainActivity.this, secondActivity.class);
intent.putExtra("FILES_TO_SEND", fileList);
startActivity(intent);

In receiver activity:

ArrayList<ContactBean> filelist =  (ArrayList<ContactBean>)getIntent().getSerializableExtra("FILES_TO_SEND");`

Just try " gcc filename.c -lm" while compiling the program ...it worked for me

An example usage:

>>> s = 'Hello world'
>>> t = buffer(s, 6, 5)
>>> t
<read-only buffer for 0x10064a4b0, size 5, offset 6 at 0x100634ab0>
>>> print t
world

The buffer in this case is a sub-string, starting at position 6 with length 5, and it doesn't take extra storage space - it references a slice of the string.

This isn't very useful for short strings like this, but it can be necessary when using large amounts of data. This example uses a mutable bytearray:

>>> s = bytearray(1000000)   # a million zeroed bytes
>>> t = buffer(s, 1)         # slice cuts off the first byte
>>> s[1] = 5                 # set the second element in s
>>> t[0]                     # which is now also the first element in t!
'\x05'

This can be very helpful if you want to have more than one view on the data and don't want to (or can't) hold multiple copies in memory.

Note that buffer has been replaced by the better named memoryview in Python 3, though you can use either in Python 2.7.

Note also that you can't implement a buffer interface for your own objects without delving into the C API, i.e. you can't do it in pure Python.

1) Make sure that your file is really sent from the client side. For example you can check it in Chrome Console: screenshot

2) Here is the basic example of NodeJS backend:

const express = require('express');
const fileUpload = require('express-fileupload');
const app = express();

app.use(fileUpload()); // Don't forget this line!

app.post('/upload', function(req, res) {
   console.log(req.files);
   res.send('UPLOADED!!!');
});

Flurl [disclosure: I'm the author] supports building query strings via anonymous objects (among other ways):

var url = "http://www.some-api.com".SetQueryParams(new
{
    api_key = ConfigurationManager.AppSettings["SomeApiKey"],
    max_results = 20,
    q = "Don't worry, I'll get encoded!"
});

The optional Flurl.Http companion lib allows you to do HTTP calls right off the same fluent call chain, extending it into a full-blown REST client:

T result = await "https://api.mysite.com"
    .AppendPathSegment("person")
    .SetQueryParams(new { ap_key = "my-key" })
    .WithOAuthBearerToken("MyToken")
    .PostJsonAsync(new { first_name = firstName, last_name = lastName })
    .ReceiveJson<T>();

The full package is available on NuGet:

PM> Install-Package Flurl.Http

or just the stand-alone URL builder:

PM> Install-Package Flurl

Generic solution for combining two maps which can possibly share common keys:

In-place:

public static <K, V> void mergeInPlace(Map<K, V> map1, Map<K, V> map2,
        BinaryOperator<V> combiner) {
    map2.forEach((k, v) -> map1.merge(k, v, combiner::apply));
}

Returning a new map:

public static <K, V> Map<K, V> merge(Map<K, V> map1, Map<K, V> map2,
        BinaryOperator<V> combiner) {
    Map<K, V> map3 = new HashMap<>(map1);
    map2.forEach((k, v) -> map3.merge(k, v, combiner::apply));
    return map3;
}

As a useful addition to Humphrey's post, I had some issues with django-reversion, because it still registered disabled fields as 'changed'. The following code fixes the problem.

class ItemForm(ModelForm):

    def __init__(self, *args, **kwargs):
        super(ItemForm, self).__init__(*args, **kwargs)
        instance = getattr(self, 'instance', None)
        if instance and instance.id:
            self.fields['sku'].required = False
            self.fields['sku'].widget.attrs['disabled'] = 'disabled'

    def clean_sku(self):
        # As shown in the above answer.
        instance = getattr(self, 'instance', None)
        if instance:
            try:
                self.changed_data.remove('sku')
            except ValueError, e:
                pass
            return instance.sku
        else:
            return self.cleaned_data.get('sku', None)

items[node.ind] = items[node.ind]._replace(v=node.v)

(Note: Don't be discouraged to use this solution because of the leading underscore in the function _replace. Specifically for namedtuple some functions have leading underscore which is not for indicating they are meant to be "private")

As of C++20, yes.

As of C++17, you can use string_view:

constexpr std::string_view sv = "hello, world";

A string_view is a string-like object that acts as an immutable, non-owning reference to any sequence of char objects.

Git usually (when not specified) fetches all branches and/or tags (refs, see: git ls-refs) from one or more other repositories along with the objects necessary to complete their histories. In other words it fetches the objects which are reachable by the objects that are already downloaded. See: What does git fetch really do?

Sometimes you may have branches/tags which aren't directly connected to the current one, so git pull --all/git fetch --all won't help in that case, but you can list them by:

git ls-remote -h -t origin

and fetch them manually by knowing the ref names.

So to fetch them all, try:

git fetch origin --depth=10000 $(git ls-remote -h -t origin)

^{The --depth=10000 parameter may help if you've shallowed repository.}

Then check all your branches again:

git branch -avv

If above won't help, you need to add missing branches manually to the tracked list (as they got lost somehow):

$ git remote -v show origin
...
  Remote branches:
    master      tracked

by git remote set-branches like:

git remote set-branches --add origin missing_branch

so it may appear under remotes/origin after fetch:

$ git remote -v show origin
...
  Remote branches:
    missing_branch new (next fetch will store in remotes/origin)
$ git fetch
From github.com:Foo/Bar
 * [new branch]      missing_branch -> origin/missing_branch

Troubleshooting

If you still cannot get anything other than the master branch, check the followings:

• Double check your remotes (git remote -v), e.g.
  • Validate that git config branch.master.remote is origin.
  • Check if origin points to the right URL via: git remote show origin (see this post).

You need to convert your private key to PKCS8 format using following command:

openssl pkcs8 -topk8 -inform PEM -outform DER -in private_key_file  -nocrypt > pkcs8_key

After this your java program can read it.

Jenkins has a link to their REST API in the bottom right of each page. This link appears on every page of Jenkins and points you to an API output for the exact page you are browsing. That should provide some understanding into how to build the API URls.

You can additionally use some wrapper, like I do, in Python, using http://jenkinsapi.readthedocs.io/en/latest/

Here is their website: https://wiki.jenkins-ci.org/display/JENKINS/Remote+access+API

With Hibernate Validator 4.1.0.Final I recommend using @ScriptAssert. Exceprt from its JavaDoc:

Script expressions can be written in any scripting or expression language, for which a JSR 223 ("Scripting for the JavaTM Platform") compatible engine can be found on the classpath.

Note: the evaluation is being performed by a scripting "engine" running in the Java VM, therefore on Java "server side", not on "client side" as stated in some comments.

Example:

@ScriptAssert(lang = "javascript", script = "_this.passVerify.equals(_this.pass)")
public class MyBean {
  @Size(min=6, max=50)
  private String pass;

  private String passVerify;
}

or with shorter alias and null-safe:

@ScriptAssert(lang = "javascript", alias = "_",
    script = "_.passVerify != null && _.passVerify.equals(_.pass)")
public class MyBean {
  @Size(min=6, max=50)
  private String pass;

  private String passVerify;
}

or with Java 7+ null-safe Objects.equals():

@ScriptAssert(lang = "javascript", script = "Objects.equals(_this.passVerify, _this.pass)")
public class MyBean {
  @Size(min=6, max=50)
  private String pass;

  private String passVerify;
}

Nevertheless, there is nothing wrong with a custom class level validator @Matches solution.

I have tried most of the solutions suggested here but I had no luck. I found a solution that worked for me, which was manually updating the gemfile to 2.6.7. The guide on how to do is in guides.rubygems.org: installing-using-update-packages

Download rubygems-update-2.6.7.gem to your C:\

Now, using your Command Prompt:

C:\>gem install --local C:\rubygems-update-2.6.7.gem
C:\>update_rubygems --no-ri --no-rdoc 

After this, gem --version should report the new update version (2.6.7).

You can now safely uninstall rubygems-update gem:

C:\>gem uninstall rubygems-update -x
Removing update_rubygems
Successfully uninstalled rubygems-update-2.6.7

The reason why this did not work before was because server used certificates SHA-1, now this was updated to SHA-2.

The current solution has been deprecated as of iOS 7.

Here is an updated solution:

+ (CGFloat)heightOfCellWithIngredientLine:(NSString *)ingredientLine
                       withSuperviewWidth:(CGFloat)superviewWidth
{
    CGFloat labelWidth                  = superviewWidth - 30.0f;
    //    use the known label width with a maximum height of 100 points
    CGSize labelContraints              = CGSizeMake(labelWidth, 100.0f);

    NSStringDrawingContext *context     = [[NSStringDrawingContext alloc] init];

    CGRect labelRect                    = [ingredientLine boundingRectWithSize:labelContraints
                                                        options:NSStringDrawingUsesLineFragmentOrigin
                                                     attributes:nil
                                                        context:context];

    //    return the calculated required height of the cell considering the label
    return labelRect.size.height;
}

The reason that my solution is set up like this is because I am using a UITableViewCell and resizing the cell dynamically relative to how much room the label will take up.

Assuming you want a field length of 2 with leading zeros you'd do this:

import Foundation

for myInt in 1 ... 3 {
    print(String(format: "%02d", myInt))
}

output:

01
02
03

This requires import Foundation so technically it is not a part of the Swift language but a capability provided by the Foundation framework. Note that both import UIKit and import Cocoa include Foundation so it isn't necessary to import it again if you've already imported Cocoa or UIKit.

The format string can specify the format of multiple items. For instance, if you are trying to format 3 hours, 15 minutes and 7 seconds into 03:15:07 you could do it like this:

let hours = 3
let minutes = 15
let seconds = 7
print(String(format: "%02d:%02d:%02d", hours, minutes, seconds))

output:

03:15:07

These two approaches produce identical dictionaries, except, as you've noted, where the lexical rules of Python interfere.

Dictionary literals are a little more obviously dictionaries, and you can create any kind of key, but you need to quote the key names. On the other hand, you can use variables for keys if you need to for some reason:

a = "hello"
d = {
    a: 'hi'
    }

The dict() constructor gives you more flexibility because of the variety of forms of input it takes. For example, you can provide it with an iterator of pairs, and it will treat them as key/value pairs.

I have no idea why PyCharm would offer to convert one form to the other.

For those interested in removing extension from filename, you can use https://nodejs.org/api/path.html#path_path_basename_path_ext

path.basename('/foo/bar/baz/asdf/quux.html', '.html');

If you're array structure will always be multi-dimensional in that exact fashion, then we can iterate through the elements like such:

$fh = fopen('somefile.csv', 'w') or die('Cannot open the file');

for( $i=0; $i<count($arr); $i++ ){
    $str = implode( ',', $arr[$i] );
    fwrite( $fh, $str );
    fwrite( $fh, "\n" );
}
fclose($fh);

That's one way to do it ... you could do it manually but this way is quicker and easier to understand and read.

Then you would manage your headers something what complex857 is doing to spit out the file. You could then delete the file using unlink() if you no longer needed it, or you could leave it on the server if you wished.

This happened with me as well and I believe this has become a common error not only for Django developers but also for Flask as well, so the way I solved this issue was using brew.

1. brew install mysql
2. sudo pip install mysql-python

This way every single issue was solved and both frameworks work absolutely fine.

P.S.: For those who use macports (such as myself), this can be an issue as brew works in a different level, my advice is to use brew instead of macports

I hope I could be helpful.

You can do something like this:

var cubes = [
 [1, 2, 3],
 [4, 5, 6],    
 [7, 8, 9],
];

for(var i = 0; i < cubes.length; i++) {
    var cube = cubes[i];
    for(var j = 0; j < cube.length; j++) {
        display("cube[" + i + "][" + j + "] = " + cube[j]);
    }
}

Working jsFiddle:

• http://jsfiddle.net/TRR4n/

The output of the above:

cube[0][0] = 1
cube[0][1] = 2
cube[0][2] = 3
cube[1][0] = 4
cube[1][1] = 5
cube[1][2] = 6
cube[2][0] = 7
cube[2][1] = 8
cube[2][2] = 9

It is a sort of format specifier for formatting numeric results. There are additional specifiers on the link.

What N does is that it separates numbers into thousand decimal places according to your CultureInfo and represents only 2 decimal digits in floating part as is N2 by rounding right-most digit if necessary.

N0 does not represent any decimal place but rounding is applied to it.

Let's exemplify.

using System;
using System.Globalization;


namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            double x = 567892.98789;
            CultureInfo someCulture = new CultureInfo("da-DK", false);

            // 10 means left-padded = right-alignment
            Console.WriteLine(String.Format(someCulture, "{0:N} denmark", x));
            Console.WriteLine("{0,10:N} us", x); 

            // watch out rounding 567,893
            Console.WriteLine(String.Format(someCulture, "{0,10:N0}", x)); 
            Console.WriteLine("{0,10:N0}", x);

            Console.WriteLine(String.Format(someCulture, "{0,10:N5}", x));
            Console.WriteLine("{0,10:N5}", x);


            Console.ReadKey();

        }
    }
}

It yields,

567.892,99 denmark
567,892.99 us
   567.893
   567,893
567.892,98789
567,892.98789

But svn log is still in reverse order, i.e. most recent entries are output first, scrolling off the top of my terminal and gone. I really want to see the last entries, i.e. the sorting order must be chronological. The only command that does this seems to be svn log -r 1:HEAD but that takes much too long on a repository with some 10000 entries. I've come up this this:

Display the last 10 subversion entries in chronological order:

svn log -r $(svn log -l 10 | grep '^r[0-9]* ' | tail -1 | cut -f1 -d" "):HEAD

Solution posted by Denys S. in the question post:

I quite messed it up with c to c++ conversion (basically env variable stuff), but I got it working with the following code for C++:

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

jstring Java_the_package_MainActivity_getJniString( JNIEnv* env, jobject obj){

    jstring jstr = (*env)->NewStringUTF(env, "This comes from jni.");
    jclass clazz = (*env)->FindClass(env, "com/inceptix/android/t3d/MainActivity");
    jmethodID messageMe = (*env)->GetMethodID(env, clazz, "messageMe", "(Ljava/lang/String;)Ljava/lang/String;");
    jobject result = (*env)->CallObjectMethod(env, obj, messageMe, jstr);

    const char* str = (*env)->GetStringUTFChars(env,(jstring) result, NULL); // should be released but what a heck, it's a tutorial :)
    printf("%s\n", str);

    return (*env)->NewStringUTF(env, str);
}

And next code for java methods:

    public class MainActivity extends Activity {
    private static String LIB_NAME = "thelib";

    static {
        System.loadLibrary(LIB_NAME);
    }

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView tv = (TextView) findViewById(R.id.textview);
        tv.setText(this.getJniString());
    }

    // please, let me live even though I used this dark programming technique
    public String messageMe(String text) {
        System.out.println(text);
        return text;
    }

    public native String getJniString();
}

Ok, SO Basically I think I have a simple and effective solution.

package AnotherPopUpMessage;
import javax.swing.JOptionPane;
public class AnotherPopUp {
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        JOptionPane.showMessageDialog(null, "Again? Where do all these come from?", 
            "PopUp4", JOptionPane.CLOSED_OPTION);
    }
}

I want to add another solution: In my case, I need to use a Enum group in a drop down button list items. So they might have space, i.e. more user friendly descriptions needed:

  public enum CancelReasonsEnum
{
    [Description("In rush")]
    InRush,
    [Description("Need more coffee")]
    NeedMoreCoffee,
    [Description("Call me back in 5 minutes!")]
    In5Minutes
}

In a helper class (HelperMethods) I created the following method:

 public static List<string> GetListOfDescription<T>() where T : struct
    {
        Type t = typeof(T);
        return !t.IsEnum ? null : Enum.GetValues(t).Cast<Enum>().Select(x => x.GetDescription()).ToList();
    }

When you call this helper you will get the list of item descriptions.

 List<string> items = HelperMethods.GetListOfDescription<CancelReasonEnum>();

ADDITION: In any case, if you want to implement this method you need :GetDescription extension for enum. This is what I use.

 public static string GetDescription(this Enum value)
    {
        Type type = value.GetType();
        string name = Enum.GetName(type, value);
        if (name != null)
        {
            FieldInfo field = type.GetField(name);
            if (field != null)
            {
                DescriptionAttribute attr =Attribute.GetCustomAttribute(field,typeof(DescriptionAttribute)) as DescriptionAttribute;
                if (attr != null)
                {
                    return attr.Description;
                }
            }
        }
        return null;
        /* how to use
            MyEnum x = MyEnum.NeedMoreCoffee;
            string description = x.GetDescription();
        */

    }

I tried a lot of JS and CSS scroll's and I found this was very easy to use and tested on IE and Safari and FF and worked fine

AS @thebluefox suggests

Here is how it works

Add the below script to the

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
<script type="text/javascript" src="jquery.ui.touch-punch.min.js"></script>

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

<script type="text/javascript">
    jQuery(function(){ // on page DOM load
        $('#demo1').alternateScroll();
        $('#demo2').alternateScroll({ 'vertical-bar-class': 'styled-v-bar', 'hide-bars': false });  
    })
</script>

And this here in the paragraph where you need to scroll

<div id="demo1" style="width:300px; height:250px; padding:8px; resize:both; overflow:scroll">
**Your Paragraph Comes Here**
</div>

For more details visit the plugin page

FaceScroll Custom scrollbar

hope it help's

Try installing mod_ssl using following command:

yum install mod_ssl

and then reload and restart your Apache server using following commands:

systemctl reload httpd.service
systemctl restart httpd.service

This should work for most of the cases.

You can do that with a psql slash command:

 \d myTable describe table

It also works for other objects:

 \d myView describe view
 \d myIndex describe index
 \d mySequence describe sequence

Source: faqs.org

child: Container(
   child: isFile == true ? 
            Image.network(pathfile, width: 300, height: 200, fit: BoxFit.cover) : 
            Text(message.subject.toString(), style: TextStyle(color: Colors.white),
      ),
),

I am working in python flask: I had the same problem... There was a "," after I declared my my form variables; I am working with wtforms. That is what caused all the confusion

A pure RESTful API should use the underlying protocol standard features:

1. For HTTP, the RESTful API should comply with existing HTTP standard headers. Adding a new HTTP header violates the REST principles. Do not re-invent the wheel, use all the standard features in HTTP/1.1 standards - including status response codes, headers, and so on. RESTFul web services should leverage and rely upon the HTTP standards.

2. RESTful services MUST be STATELESS. Any tricks, such as token based authentication that attempts to remember the state of previous REST requests on the server violates the REST principles. Again, this is a MUST; that is, if you web server saves any request/response context related information on the server in attempt to establish any sort of session on the server, then your web service is NOT Stateless. And if it is NOT stateless it is NOT RESTFul.

Bottom-line: For authentication/authorization purposes you should use HTTP standard authorization header. That is, you should add the HTTP authorization / authentication header in each subsequent request that needs to be authenticated. The REST API should follow the HTTP Authentication Scheme standards.The specifics of how this header should be formatted are defined in the RFC 2616 HTTP 1.1 standards – section 14.8 Authorization of RFC 2616, and in the RFC 2617 HTTP Authentication: Basic and Digest Access Authentication.

I have developed a RESTful service for the Cisco Prime Performance Manager application. Search Google for the REST API document that I wrote for that application for more details about RESTFul API compliance here. In that implementation, I have chosen to use HTTP "Basic" Authorization scheme. - check out version 1.5 or above of that REST API document, and search for authorization in the document.

String a []=new String[1];

  a[0].add("kk" );
  a[1].add("pp");

Try this one...

Using mongoose here, but you could do a similar check without it

export async function clearDatabase() {
  if (mongoose.connection.readyState === mongoose.connection.states.disconnected) {
    return Promise.resolve()
  }
  return mongoose.connection.db.dropDatabase()
}

My use case was just tests throwing errors, so if we've disconnected, I don't run operations.

I think that you can use

for j,k in my_list:
  [ ... stuff ... ]

The below is a working example. Add async:false.

const response = $.ajax({
                    type:"POST",
                    dataType:"json",
                    async:false, 
                    url:"your-url",
                    data:{"data":"data"}                        
                });                   
 console.log("response: ", response);

I faced same issue few days back, I followed the link mentioned below and I could able to overcome the problem

http://www.baeldung.com/spring-data-jpa-multiple-databases

In my case I needed to raise an exception so I did:

class UnableToStripEnd(Exception):
    """A Exception type to indicate that the suffix cannot be removed from the text."""

    @staticmethod
    def get_exception(text, suffix):
        return UnableToStripEnd("Could not find suffix ({0}) on text: {1}."
                                .format(suffix, text))


def strip_end(text, suffix):
    """Removes the end of a string. Otherwise fails."""
    if not text.endswith(suffix):
        raise UnableToStripEnd.get_exception(text, suffix)
    return text[:len(text)-len(suffix)]

I get questions a lot from designers about not only width but what height to use to 'keep everything above the fold'. Here is one answer I gave recently -

For width, I'm not a designer but I've read that 960px width is the way to go these days, because it lends itself to being divided into columns that look nice, and fits nicely within most displays. If you can, design a liquid layout - but this is not always practical depending on your designer, your CSS skills, the images and the amount of text.

(you always want there to be 65-80 characters per line, with a line-height of about 1.15). This is the optimal column width for text, and it has been proven to be much faster and pleasant to read than very wide or narrow columns)

As far as 'above the fold', I just have to caution against using any such concept on the web. Horizontal scrolling can and should be avoided, but vertical scrolling is something you cannot 100% avoid. All I can tell you is that on a 1024x768 display (at least 95% of users have that or higher) you should be OK with a fixed 600px high block. But there are many different display formats out there, the browser chrome can take up a lot of room, and not everybody maximizes the browser window.

here are some other sites that say more-or-less the same thing - but planning to get absolutely everything 'above the fold' for everyone is tough because then you might only have 400px or so, according to the actual statistics.

And finally a good long article that goes into great detail (I'd post more but SO says I am too noob) - How to design for Browser Sizes - baekdal.com

All major browsers now include native JSON encoding/decoding.

// To encode an object (This produces a string)
var json_str = JSON.stringify(myobject); 

// To decode (This produces an object)
var obj = JSON.parse(json_str);

Note that only valid JSON data will be encoded. For example:

var obj = {'foo': 1, 'bar': (function (x) { return x; })}
JSON.stringify(obj) // --> "{\"foo\":1}"

Valid JSON types are: objects, strings, numbers, arrays, true, false, and null.

Some JSON resources:

• JSON on Mozilla Developer Network
• JSON on Wikipedia

You can set a control variable in vars files located in group_vars/ or directly in hosts file like this:

[vagrant:vars]
test_var=true

[location-1]
192.168.33.10 hostname=apollo

[location-2]
192.168.33.20 hostname=zeus

[vagrant:children]
location-1
location-2

And run tasks like this:

- name: "test"
  command: "echo {{test_var}}"
  when: test_var is defined and test_var

See my post on a similar Stack Exchange thread https://stackoverflow.com/a/21455677/1368849

I had version 15, not 12 installed, which I found out by running this PowerShell code...

(New-Object system.data.oledb.oledbenumerator).GetElements() | select SOURCES_NAME, SOURCES_DESCRIPTION

...which gave me this result (I've removed other data sources for brevity)...

SOURCES_NAME              SOURCES_DESCRIPTION                                                                       
------------              -------------------                                                                       
Microsoft.ACE.OLEDB.15.0  Microsoft Office 15.0 Access Database Engine OLE DB Provider

2 things you should note:

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

So just use this code:

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

Another option:

return new NotModified();

public class NotModified : IHttpActionResult
{
    public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
    {
        var response = new HttpResponseMessage(HttpStatusCode.NotModified);
        return Task.FromResult(response);
    }
}

try this... obviously you need to set each div to 25%. You then will need to add your content as needed :) Hope that helps.

 <html>
   <head>
   <title>CSS devide window by 25% horizontally</title>
   <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
   <style type="text/css" media="screen"> 
     body {
     margin:0;
     padding:0;
     height:100%;
     }
     #top_div
     {
       height:25%;
       width:100%;
       background-color:#009900;
       margin:auto;
       text-align:center;
     }
     #mid1_div
     {
       height:25%;
       width:100%;
       background-color:#990000;
       margin:auto;
       text-align:center;
       color:#FFFFFF;
     }
     #mid2_div
     {
       height:25%;
       width:100%;
       background-color:#000000;
       margin:auto;
       text-align:center;
       color:#FFFFFF;
     }
     #bottom_div
     {
       height:25%;
       width:100%;
       background-color:#990000;
       margin:auto;
       text-align:center;
       color:#FFFFFF;
     }
   </style>
   </head>
   <body>
     <div id="top_div">Top- height is 25% of window height</div>
     <div id="mid1_div">Middle 1 - height is 25% of window height</div>
     <div id="mid2_div">Middle 2 - height is 25% of window height</div>
     <div id="bottom_div">Bottom - height is 25% of window height</div>
   </body>
 </html>

Tested and works fine, copy the code above into a HTML file, and open with your browser.

<a href="http://stackoverflow.com" 
    onclick="return confirm('Are you sure?');">My Link</a>

These are the sizes. Try to take a look in Supporting Mutiple Screens

320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).
480dp: a tweener tablet like the Streak (480x800 mdpi).
600dp: a 7” tablet (600x1024 mdpi).
720dp: a 10” tablet (720x1280 mdpi, 800x1280 mdpi, etc).

I use this to make more than one layout:

res/layout/main_activity.xml           # For handsets (smaller than 600dp available width)
res/layout-sw600dp/main_activity.xml   # For 7” tablets (600dp wide and bigger)
res/layout-sw720dp/main_activity.xml   # For 10” tablets (720dp wide and bigger)

listA.Any(_ => listB.Contains(_))

:)