This can also happen when you're trying to load a DLL and that in turn needs another DLL which cannot be not found.

Only static functions are called with class name.

classname::Staicfunction();

Non static functions have to be called using objects.

classname obj;
obj.Somefunction();

This is exactly what your error means. Since your function is non static you have to use a object reference to invoke it.

Another example to illustrate the __declspec keyword:

When you are writing a Windows Kernel Driver, sometimes you want to write your own prolog/epilog code sequences using inline assembler code, so you could declare your function with the naked attribute.

__declspec( naked ) int func( formal_parameters ) {}

Or

#define Naked __declspec( naked )
Naked int func( formal_parameters ) {}

Please refer to naked (C++)

For VB6:

You need to declare your C functions as __stdcall, otherwise you get "invalid calling convention" type errors. About other your questions:

can I take arguments by pointer/reference from the VB front-end?

Yes, use ByRef/ByVal modifiers.

Can the DLL call a theoretical function in the front-end?

Yes, use AddressOf statement. You need to pass function pointer to dll before.

Or have a function take a "function pointer" (I don't even know if that's possible) from VB and call it?)

Yes, use AddressOf statement.

update (more questions appeared :)):

to load it into VB, do I just do the usual method (what I would do to load winsock.ocx or some other runtime, but find my DLL instead) or do I put an API call into a module?

You need to decaler API function in VB6 code, like next:

Private Declare Function SHGetSpecialFolderLocation Lib "shell32" _
   (ByVal hwndOwner As Long, _
    ByVal nFolder As Long, _
    ByRef pidl As Long) As Long

I had exactly the same problem, my solution was to use module definition file (.def) instead of __declspec(dllexport) to define exports(http://msdn.microsoft.com/en-us/library/d91k01sh.aspx). I have no idea why this works, but it does

I had a similar error & this is what I found.

My environment details were as below: steps followed at my end

c:\>pip --version
pip 20.0.2 from c:\python37_64\lib\site-packages\pip (python 3.7)

C:\>python --version
Python 3.7.6

As per the documentation, apparently, python 3.7 already has the pickle package. So it does not require any additional download. I checked with the following command to make sure & it worked.

C:\Python\Experiements>python
Python 3.7.6 (tags/v3.7.6:43364a7ae0, Dec 19 2019, 00:42:30) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pickle
>>>

So, pip install pickle not required for python v3.7 for sure

Use the serialize method:

$.ajax({
    ...
    data: $("#registerSubmit").serialize(),
    ...
})

Docs: serialize()

If superkey is a big set than candidate key is some smaller set inside big set and primary key any one element(one at a time or for a table) in candidate key set.

You need to encode Unicode explicitly before writing to a file, otherwise Python does it for you with the default ASCII codec.

Pick an encoding and stick with it:

f.write(printinfo.encode('utf8') + '\n')

or use io.open() to create a file object that'll encode for you as you write to the file:

import io

f = io.open(filename, 'w', encoding='utf8')

You may want to read:

• The Python Unicode HOWTO

• Pragmatic Unicode by Ned Batchelder

• The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) by Joel Spolsky

before continuing.

in EXCEL 2013 i had to use IF function 2 times: 1st to identify error with ISERROR and 2nd to identify the specific type of error by ERROR.TYPE=3 in order to address this type of error. This way you can differentiate between error you want and other types.

Android already has a dedicated class for this. Check DateUtils.isToday(long when)

Create a new repository

git clone <url>
cd "repositoryName"
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

Existing folder

cd existing_folder
git init
git remote add origin <url>
git add .
git commit -m "Initial commit"
git push -u origin master

Existing Git repository

cd existing_repo
git remote rename origin old-origin
git remote add origin <url>
git push -u origin --all
git push -u origin --tags

New versions of JUnit contains the Categories runner: http://kentbeck.github.com/junit/doc/ReleaseNotes4.8.html

But releasing procedure of JUnit is not maven based, so maven users have to put it manually to their repositories.

Let's assume our application uses the following Post, PostComment, PostDetails, and Tag entities, which form a one-to-many, one-to-one, and many-to-many table relationships:

How to generate the JPA Criteria Metamodel

The hibernate-jpamodelgen tool provided by Hibernate ORM can be used to scan the project entities and generate the JPA Criteria Metamodel. All you need to do is add the following annotationProcessorPath to the maven-compiler-plugin in the Maven pom.xml configuration file:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>${maven-compiler-plugin.version}</version>
    <configuration>
        <annotationProcessorPaths>
            <annotationProcessorPath>
                <groupId>org.hibernate</groupId>
                <artifactId>hibernate-jpamodelgen</artifactId>
                <version>${hibernate.version}</version>
            </annotationProcessorPath>
        </annotationProcessorPaths>
    </configuration>
</plugin>

Now, when the project is compiled, you can see that in the target folder, the following Java classes are generated:

> tree target/generated-sources/
target/generated-sources/
+-- annotations
    +-- com
        +-- vladmihalcea
            +-- book
                +-- hpjp
                    +-- hibernate
                        +-- forum
                        ¦   +-- PostComment_.java
                        ¦   +-- PostDetails_.java
                        ¦   +-- Post_.java
                        ¦   +-- Tag_.java

Tag entity Metamodel

If the Tag entity is mapped as follows:

@Entity
@Table(name = "tag")
public class Tag {

    @Id
    private Long id;

    private String name;

    //Getters and setters omitted for brevity
}

The Tag_ Metamodel class is generated like this:

@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(Tag.class)
public abstract class Tag_ {

    public static volatile SingularAttribute<Tag, String> name;
    public static volatile SingularAttribute<Tag, Long> id;

    public static final String NAME = "name";
    public static final String ID = "id";
}

The SingularAttribute is used for the basic id and name Tag JPA entity attributes.

Post entity Metamodel

The Post entity is mapped like this:

@Entity
@Table(name = "post")
public class Post {

    @Id
    private Long id;

    private String title;

    @OneToMany(
        mappedBy = "post",
        cascade = CascadeType.ALL,
        orphanRemoval = true
    )
    private List<PostComment> comments = new ArrayList<>();

    @OneToOne(
        mappedBy = "post",
        cascade = CascadeType.ALL,
        fetch = FetchType.LAZY
    )
    @LazyToOne(LazyToOneOption.NO_PROXY)
    private PostDetails details;

    @ManyToMany
    @JoinTable(
        name = "post_tag",
        joinColumns = @JoinColumn(name = "post_id"),
        inverseJoinColumns = @JoinColumn(name = "tag_id")
    )
    private List<Tag> tags = new ArrayList<>();
    
    //Getters and setters omitted for brevity
}

The Post entity has two basic attributes, id and title, a one-to-many comments collection, a one-to-one details association, and a many-to-many tags collection.

The Post_ Metamodel class is generated as follows:

@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(Post.class)
public abstract class Post_ {

    public static volatile ListAttribute<Post, PostComment> comments;
    public static volatile SingularAttribute<Post, PostDetails> details;
    public static volatile SingularAttribute<Post, Long> id;
    public static volatile SingularAttribute<Post, String> title;
    public static volatile ListAttribute<Post, Tag> tags;

    public static final String COMMENTS = "comments";
    public static final String DETAILS = "details";
    public static final String ID = "id";
    public static final String TITLE = "title";
    public static final String TAGS = "tags";
}

The basic id and title attributes, as well as the one-to-one details association, are represented by a SingularAttribute while the comments and tags collections are represented by the JPA ListAttribute.

PostDetails entity Metamodel

The PostDetails entity is mapped like this:

@Entity
@Table(name = "post_details")
public class PostDetails {

    @Id
    @GeneratedValue
    private Long id;

    @Column(name = "created_on")
    private Date createdOn;

    @Column(name = "created_by")
    private String createdBy;

    @OneToOne(fetch = FetchType.LAZY)
    @MapsId
    @JoinColumn(name = "id")
    private Post post;
    
    //Getters and setters omitted for brevity
}

All entity attributes are going to be represented by the JPA SingularAttribute in the associated PostDetails_ Metamodel class:

@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(PostDetails.class)
public abstract class PostDetails_ {

    public static volatile SingularAttribute<PostDetails, Post> post;
    public static volatile SingularAttribute<PostDetails, String> createdBy;
    public static volatile SingularAttribute<PostDetails, Long> id;
    public static volatile SingularAttribute<PostDetails, Date> createdOn;

    public static final String POST = "post";
    public static final String CREATED_BY = "createdBy";
    public static final String ID = "id";
    public static final String CREATED_ON = "createdOn";
}

PostComment entity Metamodel

The PostComment is mapped as follows:

@Entity
@Table(name = "post_comment")
public class PostComment {

    @Id
    private Long id;

    @ManyToOne(fetch = FetchType.LAZY)
    private Post post;

    private String review;
    
    //Getters and setters omitted for brevity
}

And, all entity attributes are represented by the JPA SingularAttribute in the associated PostComments_ Metamodel class:

@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(PostComment.class)
public abstract class PostComment_ {

    public static volatile SingularAttribute<PostComment, Post> post;
    public static volatile SingularAttribute<PostComment, String> review;
    public static volatile SingularAttribute<PostComment, Long> id;

    public static final String POST = "post";
    public static final String REVIEW = "review";
    public static final String ID = "id";
}

Using the JPA Criteria Metamodel

Without the JPA Metamodel, a Criteria API query that needs to fetch the PostComment entities filtered by their associated Post title would look like this:

CriteriaBuilder builder = entityManager.getCriteriaBuilder();

CriteriaQuery<PostComment> query = builder.createQuery(PostComment.class);
Root<PostComment> postComment = query.from(PostComment.class);

Join<PostComment, Post> post = postComment.join("post");

query.where(
    builder.equal(
        post.get("title"),
        "High-Performance Java Persistence"
    )
);

List<PostComment> comments = entityManager
    .createQuery(query)
    .getResultList();

Notice that we used the post String literal when creating the Join instance, and we used the title String literal when referencing the Post title.

The JPA Metamodel allows us to avoid hard-coding entity attributes, as illustrated by the following example:

CriteriaBuilder builder = entityManager.getCriteriaBuilder();

CriteriaQuery<PostComment> query = builder.createQuery(PostComment.class);
Root<PostComment> postComment = query.from(PostComment.class);

Join<PostComment, Post> post = postComment.join(PostComment_.post);

query.where(
    builder.equal(
        post.get(Post_.title),
        "High-Performance Java Persistence"
    )
);

List<PostComment> comments = entityManager
    .createQuery(query)
    .getResultList();

Or, let's say we want to fetch a DTO projection while filtering the Post title and the PostDetails createdOn attributes.

We can use the Metamodel when creating the join attributes, as well as when building the DTO projection column aliases or when referencing the entity attributes we need to filter:

CriteriaBuilder builder = entityManager.getCriteriaBuilder();

CriteriaQuery<Object[]> query = builder.createQuery(Object[].class);

Root<PostComment> postComment = query.from(PostComment.class);
Join<PostComment, Post> post = postComment.join(PostComment_.post);

query.multiselect(
    postComment.get(PostComment_.id).alias(PostComment_.ID),
    postComment.get(PostComment_.review).alias(PostComment_.REVIEW),
    post.get(Post_.title).alias(Post_.TITLE)
);

query.where(
    builder.and(
        builder.like(
            post.get(Post_.title),
            "%Java Persistence%"
        ),
        builder.equal(
            post.get(Post_.details).get(PostDetails_.CREATED_BY),
            "Vlad Mihalcea"
        )
    )
);

List<PostCommentSummary> comments = entityManager
    .createQuery(query)
    .unwrap(Query.class)
    .setResultTransformer(Transformers.aliasToBean(PostCommentSummary.class))
    .getResultList();

Cool, right?

With version 2.3.4, you need the to add the owl.autoplay.js plugin. Then do the following

var owl = $('.owl-carousel');
owl.owlCarousel({
   items:1, //how many items you want to display
    loop:true,
    margin:10,
    autoplay:true,
    autoplayTimeout:10000,
    autoplayHoverPause:true
});

You can return the same instance in every new execution -

function Singleton() {
    // lazy 
    if (Singleton.prototype.myInstance == undefined) {
        Singleton.prototype.myInstance = { description: "I am the instance"};
    }
    return Singleton.prototype.myInstance;
}

a = new Singleton();
b = new Singleton();
console.log(a); // { description: "I am the instance"};
console.log(b); // { description: "I am the instance"};
console.log(a==b); // true

If you just want to get the information of current directory, you can type:

pwd

and you don't need to use the Nautilus, or you can use a teamviewer software to remote connect to the computer, you can get everything you want.

Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:

function sortByOrder($a, $b) {
    return $a['order'] - $b['order'];
}

usort($myArray, 'sortByOrder');

Starting in PHP 5.3, you can use an anonymous function:

usort($myArray, function($a, $b) {
    return $a['order'] - $b['order'];
});

And finally with PHP 7 you can use the spaceship operator:

usort($myArray, function($a, $b) {
    return $a['order'] <=> $b['order'];
});

To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.

usort($myArray, function($a, $b) {
    $retval = $a['order'] <=> $b['order'];
    if ($retval == 0) {
        $retval = $a['suborder'] <=> $b['suborder'];
        if ($retval == 0) {
            $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder'];
        }
    }
    return $retval;
});

If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual

Angular's own ng-Router takes URLs into consideration while routing, UI-Router takes states in addition to URLs.

States are bound to named, nested and parallel views, allowing you to powerfully manage your application's interface.

While in ng-router, you have to be very careful about URLs when providing links via <a href=""> tag, in UI-Router you have to only keep state in mind. You provide links like <a ui-sref="">. Note that even if you use <a href=""> in UI-Router, just like you would do in ng-router, it will still work.

So, even if you decide to change your URL some day, your state will remain same and you need to change URL only at .config.

While ngRouter can be used to make simple apps, UI-Router makes development much easier for complex apps. Here its wiki.

Here is the VB.

Dim validationErrors As String = String.Join(",", ModelState.Values.Where(Function(E) E.Errors.Count > 0).SelectMany(Function(E) E.Errors).[Select](Function(E) E.ErrorMessage).ToArray())

key = cv2.waitKey(1)

This is from the openCV package. It detects a keypress without waiting.

A .pl is a single script.

In .pm (Perl Module) you have functions that you can use from other Perl scripts:

A Perl module is a self-contained piece of Perl code that can be used by a Perl program or by other Perl modules. It is conceptually similar to a C link library, or a C++ class.

My RestSharp POST method:

var client = new RestClient(ServiceUrl);

var request = new RestRequest("/resource/", Method.POST);

// Json to post.
string jsonToSend = JsonHelper.ToJson(json);

request.AddParameter("application/json; charset=utf-8", jsonToSend, ParameterType.RequestBody);
request.RequestFormat = DataFormat.Json;

try
{
    client.ExecuteAsync(request, response =>
    {
        if (response.StatusCode == HttpStatusCode.OK)
        {
            // OK
        }
        else
        {
            // NOK
        }
    });
}
catch (Exception error)
{
    // Log
}

When jumi (joomla plugin for PHP) compiles your code for some reason it removes all backslashes from your code. Such that something like $csv_output .= "\n"; becomes $csv_output .= "n";

Very annoying bug!

Use PHP_EOL instead to get the result you were after.

Dictionaries will use an order that makes searching efficient, and you cant change that,

You could just use a list of objects (a 2 element tuple in a simple case, or even a class), and append items to the end. You can then use linear search to find items in it.

Alternatively you could create or use a different data structure created with the intention of maintaining order.

I have done something like what you're asking just by using jQuery to find the element (such as document.getElementById(...)) and using the .focus() call.

Below is an example of how to update the value in the array of objects more dynamically.

Person.findOneAndUpdate({_id: id}, 
{ 
  "$set": {[`items.$[outer].${propertyName}`]: value} 
},
{ 
  "arrayFilters": [{ "outer.id": itemId }]
},
function(err, response) {
  ...
})

Note that by doing it that way, you would be able to update even deeper levels of the nested array by adding additional arrayFilters and positional operator like so:

"$set": {[`items.$[outer].innerItems.$[inner].${propertyName}`]: value} 

"arrayFilters":[{ "outer.id": itemId },{ "inner.id": innerItemId }]

More usage can be found in the official docs.

in my case, some characters like " , :"'{}[] " maybe corrupt the JSON format, so use try json.loads(str) except to check your input

if you open localhost/phpmyadmin you will find a tab called "User accounts". There you can define all your users that can access the mysql database, set their rights and even limit from where they can connect.

in case if your table has tbody

let tbl = document.getElementById("tbl").getElementsByTagName('tbody')[0];
console.log(tbl.rows[0].cells[0].innerHTML)

Squashing the first and second commit would result in the first commit being rewritten. If you have more than one branch that is based off the first commit, you'd cut off that branch.

Consider the following example:

a---b---HEAD
 \
  \
   '---d

Squashing a and b into a new commit "ab" would result in two distinct trees which in most cases is not desirable since git-merge and git-rebase will no longer work across the two branches.

ab---HEAD

a---d

If you really want this, it can be done. Have a look at git-filter-branch for a powerful (and dangerous) tool for history rewriting.

If you have access to PHP 5.3, the intl extension is very nice for doing things like this.

Here's an example from the manual:

$fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL,
    'America/Los_Angeles',IntlDateFormatter::GREGORIAN  );
$fmt->format(0); //0 for current time/date

In your case, you can do:

$fmt = new IntlDateFormatter( "en_US" ,IntlDateFormatter::FULL, IntlDateFormatter::FULL,
        'America/New_York');
 $fmt->format($datetime); //where $datetime may be a DateTime object, an integer representing a Unix timestamp value (seconds since epoch, UTC) or an array in the format output by localtime(). 

As you can set a Timezone such as America/New_York, this is much better than using a GMT or UTC offset, as this takes into account the day light savings periods as well.

Finaly, as the intl extension uses ICU data, which contains a lot of very useful features when it comes to creating your own date/time formats.

I see you've already solved your problem - but for posterity:

We had a similar problem, and the SVC handler was already correctly installed. Our problem was the ExtensionlessUrl handler processing requests before they reached the SVC handler.

To check this - in Handler Mappings in IIS Manager at the web server level, view the list of handlers in order (it's an option on the right-hand side). If the various ExtensionlessUrl handlers appear above the SVC handlers, then repeatedly move them down until they're at the bottom.

Just use $evalAsync instead of $apply.

In addition mysql passwords when not using the IDENTIFIED BY clause, may be blank values, if non-blank, they may be encrypted. But yes USAGE is used to modify an account by granting simple resource limiters such as MAX_QUERIES_PER_HOUR, again this can be specified by also using the WITH clause, in conjuction with GRANT USAGE(no privileges added) or GRANT ALL, you can also specify GRANT USAGE at the global level, database level, table level,etc....

Same thing happens to me from time to time when using Eclipse WDT. Its specialy frustrating when this happens to a unmodified and previously working project. This is what I do to fix it in this last scenario:

1. Stop Tomcat (if it's running)
2. Open the "Servers" view: Window > Show view > Other > Server > Servers
3. Right Click on Tomcat Server > Clean Tomcat Work Directory.
4. Right Click on Tomcat Server > Clean
5. Restart the server

This usually fixes the issue you mention.

You can check this way too

<c:if test="${theBooleanVariable ne true}">It's false!</c:if>

If you want your database file

See the DDMS > File explore

find your db file from your package name

then Click on pull a file from device (Rooted device only)

just found

grep $'\r'

It's using $'\r' for c-style escape in Bash.

in this article

This answer was pulled from http://www.databasejournal.com/features/mssql/article.php/3683181

This same example can be used for any adhoc queries. Let us execute the stored procedure “sp_helpdb” as shown below.

$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server=HOME\SQLEXPRESS;Database=master;Integrated Security=True"
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "sp_helpdb"
$SqlCmd.Connection = $SqlConnection
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet)
$SqlConnection.Close()
$DataSet.Tables[0]

You can also used like this

<a href="<?php echo 'index.php'; ?>">Index Page</a>
<a href="<?php echo 'page2.php'; ?>">Page 2</a>

In Windows, if you have the shortcut in your taskbar, right-click the "Anaconda Prompt" icon, you'll see:

• Anaconda Prompt
• Unpin from taskbar (if pinned)
• Close window

Right-click on "Anaconda Prompt" again.

Click "Properties"

Add the path you want your anaconda prompt to open up into in the "Start In:" section.

Note - you can also do this by searching for "Anaconda Prompt" in the Start Menu. The directions above are specifically for the shortcut.

Four fewer characters, but 2 more ms

%%timeit
df.isna().T.any()
# 52.4 ms ± 352 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)

%%timeit
df.isna().any(axis=1)
# 50 ms ± 423 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)

I'd probably use axis=1

import java.util.*;
public class FindDigits{

 public static void main(String []args){
    FindDigits h=new  FindDigits();
    h.checkStringIsNumerical();
 }

 void checkStringIsNumerical(){
    String h="hello 123 for the rest of the 98475wt355";
     for(int i=0;i<h.length();i++)  {
      if(h.charAt(i)!=' '){
       System.out.println("Is this '"+h.charAt(i)+"' is a digit?:"+Character.isDigit(h.charAt(i)));
       }
    }
 }

void checkStringIsNumerical2(){
    String h="hello 123 for 2the rest of the 98475wt355";
     for(int i=0;i<h.length();i++)  {
         char chr=h.charAt(i);
      if(chr!=' '){
       if(Character.isDigit(chr)){
          System.out.print(chr) ;
       }
       }
    }
 }
}

I included the binary into my projects resources directory like so:

src\main\resources\chrome\chromedriver_win32.zip
src\main\resources\chrome\chromedriver_mac64.zip
src\main\resources\chrome\chromedriver_linux64.zip

Code:

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.SystemUtils;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

import java.io.*;
import java.nio.file.Files;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public WebDriver getWebDriver() throws IOException {
    File tempDir = Files.createTempDirectory("chromedriver").toFile();
    tempDir.deleteOnExit();
    File chromeDriverExecutable;

    final String zipResource;
    if (SystemUtils.IS_OS_WINDOWS) {
        zipResource = "chromedriver_win32.zip";
    } else if (SystemUtils.IS_OS_LINUX) {
        zipResource = "chromedriver_linux64.zip";
    } else if (SystemUtils.IS_OS_MAC) {
        zipResource = "chrome/chromedriver_mac64.zip";
    } else {
        throw new RuntimeException("Unsuppoerted OS");
    }

    try (InputStream is = getClass().getResourceAsStream("/chrome/" + zipResource)) {
        try (ZipInputStream zis = new ZipInputStream(is)) {
            ZipEntry entry;
            entry = zis.getNextEntry();
            chromeDriverExecutable = new File(tempDir, entry.getName());
            chromeDriverExecutable.deleteOnExit();
            try (OutputStream out = new FileOutputStream(chromeDriverExecutable)) {
                IOUtils.copy(zis, out);
            }
        }
    }

    System.setProperty("webdriver.chrome.driver", chromeDriverExecutable.getAbsolutePath());
    return new ChromeDriver();
}

Postgres 9.2

I quote Andrew Dunstan on the pgsql-hackers list:

At some stage there will possibly be some json-processing (as opposed to json-producing) functions, but not in 9.2.

Doesn't prevent him from providing an example implementation in PLV8 that should solve your problem.

Postgres 9.3

Offers an arsenal of new functions and operators to add "json-processing".

• The manual on new JSON functionality.
• The Postgres Wiki on new features in pg 9.3.
• @Will posted a link to a blog demonstrating the new operators in a comments below.

The answer to the original question in Postgres 9.3:

SELECT *
FROM   json_array_elements(
  '[{"name": "Toby", "occupation": "Software Engineer"},
    {"name": "Zaphod", "occupation": "Galactic President"} ]'
  ) AS elem
WHERE elem->>'name' = 'Toby';

Advanced example:

• Query combinations with nested array of records in JSON datatype

For bigger tables you may want to add an expression index to increase performance:

• Index for finding an element in a JSON array

Postgres 9.4

Adds jsonb (b for "binary", values are stored as native Postgres types) and yet more functionality for both types. In addition to expression indexes mentioned above, jsonb also supports GIN, btree and hash indexes, GIN being the most potent of these.

• The manual on json and jsonb data types and functions.
• The Postgres Wiki on JSONB in pg 9.4

The manual goes as far as suggesting:

In general, most applications should prefer to store JSON data as jsonb, unless there are quite specialized needs, such as legacy assumptions about ordering of object keys.

Bold emphasis mine.

Performance benefits from general improvements to GIN indexes.

Postgres 9.5

Complete jsonb functions and operators. Add more functions to manipulate jsonb in place and for display.

• Major good news in the release notes of Postgres 9.5.

I have tried &amp, but it didn't work. Based on Wim ten Brink's answer I tried &amp and it worked.

One of my fellow developers suggested me to use & and that worked regardless of how many times it may be rendered.

In the rowdatabound method for 2nd column

GridView gv = (sender as GridView);
gv.HeaderRow.Cells[2].Visible = false;
e.Row.Cells[2].Visible = false;

C# 7 tuple example

var tuple = TupleExample(key, value);

     private (string key1, long value1) ValidateAPIKeyOwnerId(string key, string value)
            {
                return (key, value);
            }
      if (!string.IsNullOrEmpty(tuple.key1) && tuple.value1 > 0)
          {
                    //your code

                }     

I used the following jQuery-based snippet to have a select-element show a div-element that has an id that matches the value of the option-element while hiding the divs that do not match. Not sure that it's the best way, but it is a way.

$('#sectionChooser').change(function(){_x000D_
    var myID = $(this).val();_x000D_
    $('.panel').each(function(){_x000D_
        myID === $(this).attr('id') ? $(this).show() : $(this).hide();_x000D_
    });_x000D_
});

.panel {display: none;}_x000D_
#one {display: block;}

<select id="sectionChooser">_x000D_
    <option value="one" selected>Thing One</option>_x000D_
    <option value="two">Thing Two</option>_x000D_
    <option value="three">Thing Three</option>_x000D_
</select>_x000D_
_x000D_
<div class="panel" id="one">_x000D_
    <p>Thing One</p>_x000D_
</div>_x000D_
<div class="panel" id="two">_x000D_
    <p>Thing Two</p>_x000D_
</div>_x000D_
<div class="panel" id="three">_x000D_
    <p>Thing Three</p>_x000D_
</div>_x000D_
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

I think the error because the elements are undefined ,so you need to add window.onload event which this event will defined your elements when the window is loaded.

window.addEventListener('load',Loaded,false);


    function Loaded(){
    var myButton = document.getElementById("myButton");
    var myTextfield = document.getElementById("myTextfield");

    function greetUser(userName) {
    var greeting = "Hello " + userName + "!";
    document.getElementsByTagName ("h2")[0].innerHTML = greeting;
    }

    myButton.onclick = function() {
    var userName = myTextfield.value;
    greetUser(userName);

    return false;
    }
    }

If you want to be able to return to the precise version of the repository at the time you do a build it is best to tag the commit from which you make the build.

The other answers provide techniques to return the repository to the most recent commit in a branch as of a certain time-- but they might not always suffice. For example, if you build from a branch, and later delete the branch, or build from a branch that is later rebased, the commit you built from can become "unreachable" in git from any current branch. Unreachable objects in git may eventually be removed when the repository is compacted.

Putting a tag on the commit means it never becomes unreachable, no matter what you do with branches afterwards (barring removing the tag).

    LocalDate date = LocalDate.now();
    DateFormat formatter = new SimpleDateFormat("dd-mm-yyyy");
    try {
        Date utilDate= formatter.parse(date.toString());
    } catch (ParseException e) {
        // handle exception
    }

Using a nested .each() means that your inner loop is doing one td at a time, so you can't set the productId and product and quantity all in the inner loop.

Also using function(key, val) and then val[key].innerHTML isn't right: the .each() method passes the index (an integer) and the actual element, so you'd use function(i, element) and then element.innerHTML. Though jQuery also sets this to the element, so you can just say this.innerHTML.

Anyway, here's a way to get it to work:

    table.find('tr').each(function (i, el) {
        var $tds = $(this).find('td'),
            productId = $tds.eq(0).text(),
            product = $tds.eq(1).text(),
            Quantity = $tds.eq(2).text();
        // do something with productId, product, Quantity
    });

Demo: http://jsfiddle.net/bqX7Q/

How's this for a work around (using an actual table)?

table {
    border-collapse: collapse;
}

tr.row {
    border-bottom: solid white 30px; /* change "white" to your background color */
}

It's not as dynamic, since you have to explicitly set the color of the border (unless there's a way around that too), but this is something I'm experimenting with on a project of my own.

Edit to include comments regarding transparent:

tr.row {
    border-bottom: 30px solid transparent;
}

I tried the same on Intellij Ideav11.

It was not picking up the settings after checking the process using grep. In case it does not, give the mem settings for JAVA_OPTS in catalina.sh instead.

Removing the name from your binding will make it apply to all endpoints, and should produce the desired results. As so:

<services>
  <service name="Service.IService">
    <clear />
    <endpoint binding="basicHttpBinding" contract="Service.IService" />
  </service>
</services>
<bindings>
  <basicHttpBinding>
    <binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
      <readerQuotas maxDepth="32" maxStringContentLength="2147483647"
        maxArrayLength="16348" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
    </binding>
  </basicHttpBinding>
  <webHttpBinding>
    <binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" />
  </webHttpBinding>
</bindings>

Also note that I removed the bindingConfiguration attribute from the endpoint node. Otherwise you would get an exception.

This same solution was found here : Problem with large requests in WCF

Using numpy:

In [1]: import numpy as np

In [2]: np.log2?
Type:           function
Base Class:     <type 'function'>
String Form:    <function log2 at 0x03049030>
Namespace:      Interactive
File:           c:\python26\lib\site-packages\numpy\lib\ufunclike.py
Definition:     np.log2(x, y=None)
Docstring:
    Return the base 2 logarithm of the input array, element-wise.

Parameters
----------
x : array_like
  Input array.
y : array_like
  Optional output array with the same shape as `x`.

Returns
-------
y : ndarray
  The logarithm to the base 2 of `x` element-wise.
  NaNs are returned where `x` is negative.

See Also
--------
log, log1p, log10

Examples
--------
>>> np.log2([-1, 2, 4])
array([ NaN,   1.,   2.])

In [3]: np.log2(8)
Out[3]: 3.0

Once I'd discovered all the information of how my client was handling the encryption/decryption at their end it was straight forward using the AesManaged example suggested by dtb.

The finally implemented code started like this:

    try
    {
        // Create a new instance of the AesManaged class.  This generates a new key and initialization vector (IV).
        AesManaged myAes = new AesManaged();

        // Override the cipher mode, key and IV
        myAes.Mode = CipherMode.ECB;
        myAes.IV = new byte[16] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; // CRB mode uses an empty IV
        myAes.Key = CipherKey;  // Byte array representing the key
        myAes.Padding = PaddingMode.None;

        // Create a encryption object to perform the stream transform.
        ICryptoTransform encryptor = myAes.CreateEncryptor();

        // TODO: perform the encryption / decryption as required...

    }
    catch (Exception ex)
    {
        // TODO: Log the error 
        throw ex;
    }

For JSX use:

{"jsxSingleQuote": false}

Hi you can create a customized build on bootstrap, just change the font name in the following pages

Bootstrap 2.3.2 http://getbootstrap.com/2.3.2/customize.html#variables

Bootstrap 3 http://getbootstrap.com/customize/#less-variables

After that, make sure to use proper @font-face in a css file and link that to your page. Or you could use font kit generators.

Easiest way

The most trivial way to download a binary file from an FTP server using .NET framework is using WebClient.DownloadFile:

WebClient client = new WebClient();
client.Credentials = new NetworkCredential("username", "password");
client.DownloadFile(
    "ftp://ftp.example.com/remote/path/file.zip", @"C:\local\path\file.zip");

Advanced options

Use FtpWebRequest, only if you need a greater control, that WebClient does not offer (like TLS/SSL encryption, progress monitoring, ascii/text transfer mode, resuming transfers, etc). Easy way is to just copy an FTP response stream to FileStream using Stream.CopyTo:

FtpWebRequest request =
    (FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.DownloadFile;

using (Stream ftpStream = request.GetResponse().GetResponseStream())
using (Stream fileStream = File.Create(@"C:\local\path\file.zip"))
{
    ftpStream.CopyTo(fileStream);
}

Progress monitoring

If you need to monitor a download progress, you have to copy the contents by chunks yourself:

FtpWebRequest request =
    (FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
request.Credentials = new NetworkCredential("username", "password");
request.Method = WebRequestMethods.Ftp.DownloadFile;

using (Stream ftpStream = request.GetResponse().GetResponseStream())
using (Stream fileStream = File.Create(@"C:\local\path\file.zip"))
{
    byte[] buffer = new byte[10240];
    int read;
    while ((read = ftpStream.Read(buffer, 0, buffer.Length)) > 0)
    {
        fileStream.Write(buffer, 0, read);
        Console.WriteLine("Downloaded {0} bytes", fileStream.Position);
    }
}

For GUI progress (WinForms ProgressBar), see:
FtpWebRequest FTP download with ProgressBar

Downloading folder

If you want to download all files from a remote folder, see
C# Download all files and subdirectories through FTP.

I want to note that the XIB editor offers you the following standard options:

Section: blue/gray/none

(the right-hand column with options, 4th tab, first group "Table View Cell", 4th subgroup, the 1st of 3 items reads "Selection")

Probably what you want to do may be achieved by selecting the right standard option.

If you want to add a text along with activity indicator please look at http://nullpointr.wordpress.com/2012/02/27/ios-dev-custom-activityindicatorview/

I just learned of another option for solving this problem. If you load the jquery-turbolinks gem it will bind the Rails Turbolinks events to the document.ready events so you can write your jQuery in the usual way. You just add jquery.turbolinks right after jquery in the js manifest file (by default: application.js).

Just 2 simple steps to solve your issue

First of all check AppendDataBoundItems property and make it assign false

Secondly clear all the items using property .clear()

{
ddl1.Items.Clear();
ddl1.datasource = sql1;
ddl1.DataBind();
}

<form name = "numberForm">
    <div>
    <input type="number"
           placeholder = "Enter your phonenumber"
           class = "formcontroll"
           name = "numbers"
           ng-minlength = "10"
           ng-maxlength = "10"
           ng-model="phno" required/>
           <p ng-show = "numberForm.numbers.$error.required ||
                       numberForm.numbers.$error.number">
                       Valid phone number is required</p>
            <p ng-show = "((numberForm.numbers.$error.minlength ||
                        numberForm.numbers.$error.maxlength)
                        && numberForm.numbers.$dirty)">
                        Phone number should be 10 digits</p><br><br>
       </div>
   </form>

You can use Core Graphics to draw the gradient, as pointed to in Mike's response. As a more detailed example, you could create a UIView subclass to use as a background for your UILabel. In that UIView subclass, override the drawRect: method and insert code similar to the following:

- (void)drawRect:(CGRect)rect 
{
    CGContextRef currentContext = UIGraphicsGetCurrentContext();

    CGGradientRef glossGradient;
    CGColorSpaceRef rgbColorspace;
    size_t num_locations = 2;
    CGFloat locations[2] = { 0.0, 1.0 };
    CGFloat components[8] = { 1.0, 1.0, 1.0, 0.35,  // Start color
         1.0, 1.0, 1.0, 0.06 }; // End color

    rgbColorspace = CGColorSpaceCreateDeviceRGB();
    glossGradient = CGGradientCreateWithColorComponents(rgbColorspace, components, locations, num_locations);

    CGRect currentBounds = self.bounds;
    CGPoint topCenter = CGPointMake(CGRectGetMidX(currentBounds), 0.0f);
    CGPoint midCenter = CGPointMake(CGRectGetMidX(currentBounds), CGRectGetMidY(currentBounds));
    CGContextDrawLinearGradient(currentContext, glossGradient, topCenter, midCenter, 0);

    CGGradientRelease(glossGradient);
    CGColorSpaceRelease(rgbColorspace); 
}

This particular example creates a white, glossy-style gradient that is drawn from the top of the UIView to its vertical center. You can set the UIView's backgroundColor to whatever you like and this gloss will be drawn on top of that color. You can also draw a radial gradient using the CGContextDrawRadialGradient function.

You just need to size this UIView appropriately and add your UILabel as a subview of it to get the effect you desire.

EDIT (4/23/2009): Per St3fan's suggestion, I have replaced the view's frame with its bounds in the code. This corrects for the case when the view's origin is not (0,0).

The set statement doesn't treat spaces the way you expect; your variable is really named Pathname[space] and is equal to [space]C:\Program Files.

Remove the spaces from both sides of the = sign, and put the value in double quotes:

set Pathname="C:\Program Files"

Also, if your command prompt is not open to C:\, then using cd alone can't change drives.

Use

cd /d %Pathname%

or

pushd %Pathname%

instead.

I think this could work:

  select
    case when datepart(dw,[Date]) = 1 then 7 else DATEPART(DW,[Date])-1 end as WeekDay

try {
} catch (javax.script.ScriptException ex) {
// System.out.println(ex.getMessage());
}

I had the same error caused by my post build script and I tried to run the script line by line in the command prompt. Finally I found out the root cause is I did not populate the missing information in the .nuspec file, i.e. replacing all the variables between $ and $ with the actual value, e.g. replacing $author$ with my name

One interesting thing is multiple order by:

according to laravel docs:

DB::table('users')
   ->orderBy('priority', 'desc')
   ->orderBy('email', 'asc')
   ->get();

this means laravel will sort result based on priority attribute. when it's done, it will order result with same priority based on email internally.

This question is 2 years old but it's still a good question and it was the first Google result ... but all of the existing answers recommend setting and removing the HTML attribute (removeAttr("disabled")) "disabled", which is not the right approach. There is a lot of confusion regarding attribute vs. property.

HTML

The "disabled" in <input type="button" disabled> in the markup is called a boolean attribute by the W3C.

HTML vs. DOM

Quote:

A property is in the DOM; an attribute is in the HTML that is parsed into the DOM.

https://stackoverflow.com/a/7572855/664132

JQuery

Related:

Nevertheless, the most important concept to remember about the checked attribute is that it does not correspond to the checked property. The attribute actually corresponds to the defaultChecked property and should be used only to set the initial value of the checkbox. The checked attribute value does not change with the state of the checkbox, while the checked property does. Therefore, the cross-browser-compatible way to determine if a checkbox is checked is to use the property...

Relevant:

Properties generally affect the dynamic state of a DOM element without changing the serialized HTML attribute. Examples include the value property of input elements, the disabled property of inputs and buttons, or the checked property of a checkbox. The .prop() method should be used to set disabled and checked instead of the .attr() method.

$( "input" ).prop( "disabled", false );

Summary

To [...] change DOM properties such as the [...] disabled state of form elements, use the .prop() method.

(http://api.jquery.com/attr/)

As for the disable on change part of the question: There is an event called "input", but browser support is limited and it's not a jQuery event, so jQuery won't make it work. The change event works reliably, but is fired when the element loses focus. So one might combine the two (some people also listen for keyup and paste).

Here's an untested piece of code to show what I mean:

$(document).ready(function() {
    var $submit = $('input[type="submit"]');
    $submit.prop('disabled', true);
    $('input[type="text"]').on('input change', function() { //'input change keyup paste'
        $submit.prop('disabled', !$(this).val().length);
    });
});

Use hypertext reference and the ID tag,

Target Text Title

Some paragraph text

<h1><a href="#target">Target Text Title</a></h1>
<p id="target">Target Text</p>

try this

= f.input :title, :as => :hidden, :input_html => { :value => "some value" }

This is specific for each site. So if you type that once, you will only get through that site and all other sites will need a similar type-through.

It is also remembered for that site and you have to click on the padlock to reset it (so you can type it again):

Needless to say use of this "feature" is a bad idea and is unsafe - hence the name.

You should find out why the site is showing the error and/or stop using it until they fix it. HSTS specifically adds protections for bad certs to prevent you clicking through them. The fact it's needed suggests there is something wrong with the https connection - like the site or your connection to it has been hacked.

The chrome developers also do change this periodically. They changed it recently from badidea to thisisunsafe so everyone using badidea, suddenly stopped being able to use it. You should not depend on it. As Steffen pointed out in the comments below, it is available in the code should it change again though they now base64 encode it to make it more obscure. The last time they changed they put this comment in the commit:

Rotate the interstitial bypass keyword

The security interstitial bypass keyword hasn't changed in two years and awareness of the bypass has been increased in blogs and social media. Rotate the keyword to help prevent misuse.

I think the message from the Chrome team is clear - you should not use it. It would not surprise me if they removed it completely in future.

If you are using this when using a self-signed certificate for local testing then why not just add your self-signed certificate certificate to your computer's certificate store so you get a green padlock and do not have to type this? Note Chrome insists on a SAN field in certificates now so if just using the old subject field then even adding it to the certificate store will not result in a green padlock.

If you leave the certificate untrusted then certain things do not work. Caching for example is completely ignored for untrusted certificates. As is HTTP/2 Push.

HTTPS is here to stay and we need to get used to using it properly - and not bypassing the warnings with a hack that is liable to change and doesn't work the same as a full HTTPS solution.

Abstract:

The reason why you are getting this error message is because you are trying to call a method on an int type of a variable. This would work if would have called len() function on a list type of a variable. Let's examin the two cases:

Fail:

num = 10

print(len(num))

The above will produce an error similar to yours due to calling len() function on an int type of a variable;

Success:

data = [0, 4, 8, 9, 12]

print(len(data))

The above will work since you are calling a function on a list type of a variable;

If you have compatibility with Object.keys, and node does have compatibility, you should use that for sure.

However, if you do not have compatibility, and for any reason using a loop function is out of the question - like me, I used the following solution:

JSON.stringify(obj) === '{}'

Consider this solution a 'last resort' use only if must.

See in the comments "there are many ways in which this solution is not ideal".

I had a last resort scenario, and it worked perfectly.

I think you are looking for this

git reset --soft HEAD~1

It undoes the most recent commit whilst keeping the changes made in that commit to staging.

The ultimate curl php function:

function getURL($url,$fields=null,$method=null,$file=null){
    // author   = Ighor Toth <[email protected]>
    // required:
    //      url     = include http or https 
    // optionals:
    //      fields  = must be array (e.g.: 'field1' => $field1, ...)
    //      method  = "GET", "POST"
    //      file    = if want to download a file, declare store location and file name (e.g.: /var/www/img.jpg, ...)
    // please crete 'cookies' dir to store local cookies if neeeded

    // do not modify below
    $useragent = 'Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko';
    $timeout= 240;
    $dir = dirname(__FILE__);
    $_SERVER["REMOTE_ADDR"] = $_SERVER["REMOTE_ADDR"] ?? '127.0.0.1';
    $cookie_file    = $dir . '/cookies/' . md5($_SERVER['REMOTE_ADDR']) . '.txt';
    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);    
    curl_setopt($ch, CURLOPT_FAILONERROR, true);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
    curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true );
    curl_setopt($ch, CURLOPT_ENCODING, "" );
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true );
    curl_setopt($ch, CURLOPT_AUTOREFERER, true );
    curl_setopt($ch, CURLOPT_MAXREDIRS, 10 );
    curl_setopt($ch, CURLOPT_USERAGENT, $useragent);
    curl_setopt($ch, CURLOPT_REFERER, 'http://www.google.com/');
    if($file!=null){
        if (!curl_setopt($ch, CURLOPT_FILE, $file)){ // Handle error
                die("curl setopt bit the dust: " . curl_error($ch));
        }
        //curl_setopt($ch, CURLOPT_FILE, $file);
        $timeout= 3600;
    }
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout );
    curl_setopt($ch, CURLOPT_TIMEOUT, $timeout );
    if($fields!=null){
        $postvars = http_build_query($fields); // build the urlencoded data
        if($method=="POST"){
            // set the url, number of POST vars, POST data
            curl_setopt($ch, CURLOPT_POST, count($fields));
            curl_setopt($ch, CURLOPT_POSTFIELDS, $postvars);
        }
        if($method=="GET"){
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
            $url = $url.'?'.$postvars;
        }
    }
    curl_setopt($ch, CURLOPT_URL, $url);
    $content = curl_exec($ch);
    if (!$content){
        $error = curl_error($ch);
        $info = curl_getinfo($ch);
        die("cURL request failed, error = {$error}; info = " . print_r($info, true));
    }
    if(curl_errno($ch)){
        echo 'error:' . curl_error($ch);
    } else {
        return $content;        
    }
    curl_close($ch);
}

It may be worth mentioning that running tomcat as a non root user (which you should be doing) will prevent you from using a port below 1024 on *nix. If you want to use TC as a standalone server -- as its performance no longer requires it to be fronted by Apache or the like -- you'll want to bind to port 80 along with whatever IP address you're specifying.

You can do this by using IPTABLES to redirect port 80 to 8080.

I found the source cause!

In my case, I add a jar file include some java source file, but I think the java source is bad, in Intellij Idea dependency library it add the source automatic, so in Editor the import is BAD, JUST remove the source code in "Project Structure" -> "Library", it works for me.

Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core”

Based on one of your previous questions you're using Tomcat 7. In that case you need JSTL 1.2. However, you've there a jstl.jar file while JSTL 1.2 has clearly the version number included like so jstl-1.2.jar. The sole filename jstl.jar is typical for JSTL 1.0 and 1.1. This version requires a standard.jar along in /WEB-INF/lib which contains the necessary TLD files. However, in your particular case the standard.jar is clearly missing in /WEB-INF/lib and that's exactly the reason why the taglib URI couldn't be resolved.

To solve this you must remove the wrong JAR file, download jstl-1.2.jar and drop it in its entirety in /WEB-INF/lib. That's all. You do not need to extract it nor to fiddle in project's Build Path.

Don't forget to remove that loose c.tld file too. It absolutely doesn't belong there. This is indeed instructed in some poor tutorials or answers elsewhere in the Internet. This is a myth caused by a major misunderstanding and misconfiguration. There is never a need to have a loose JSTL TLD file in the classpath, also not in previous JSTL versions.

In case you're using Maven, use the below coordinate:

<dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>

You should also make sure that your web.xml is declared conform at least Servlet 2.4 and thus not as Servlet 2.3 or older. Otherwise EL expressions inside JSTL tags would in turn fail to work. Pick the highest version matching your target container and make sure that you don't have a <!DOCTYPE> anywhere in your web.xml. Here's a Servlet 3.0 (Tomcat 7) compatible example:

<?xml version="1.0" encoding="UTF-8"?>
<web-app
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">

    <!-- Config here. -->

</web-app>

###See also:

• Our JSTL wiki page (you can reach there by hovering the mouse on jstl and clicking info link)
• How to install JSTL? The absolute uri: http://java.sun.com/jstl/core cannot be resolved

Try this:

private string GetJArrayValue(JObject yourJArray, string key)
{
    foreach (KeyValuePair<string, JToken> keyValuePair in yourJArray)
    {
        if (key == keyValuePair.Key)
        {
            return keyValuePair.Value.ToString();
        }
    }
}

Use svn revert --recursive folder_name

Warning

svn revert is inherently dangerous, since its entire purpose is to throw away data — namely, your uncommitted changes. Once you've reverted, Subversion provides no way to get back those uncommitted changes.

http://svnbook.red-bean.com/en/1.7/svn.ref.svn.c.revert.html

This can be achieved by wrapping the image and search bar in their own container and floating the image to the left with a specific width.

This takes the image out of the "flow" which means that any items rendered in normal flow will not adjust their positioning to take account of this.

To make the "in flow" searchBar appear correctly positioned to the right of the image you give it a left padding equal to the width of the image plus a gutter.

The effect is to make the image a fixed width while the rest of the container block is fluidly filled up by the search bar.

<div class="container">
  <img src="img/logo.png"/>
  <div id="searchBar">
    <input type="text" />
  </div>
</div>

and the css

.container {
  width: 100%;
}

.container img {
  width: 50px;
  float: left;
}

.searchBar {
  padding-left: 60px;
}

In Chrome Ver 84, flex: 1 is equivalent to flex: 1 1 0%. The followings are a bunch of screenshots.

java -cp CLASSPATH is necesssary if you wish to specify all code in the classpath. This is useful for debugging code.

The jarred executable format: java -jar JarFile can be used if you wish to start the app with a single short command. You can specify additional dependent jar files in your MANIFEST using space separated jars in a Class-Path entry, e.g.:

Class-Path: mysql.jar infobus.jar acme/beans.jar

Both are comparable in terms of performance.

To center the canvas element horizontally, you must specify it as a block level and leave its left and right margin properties to the browser:

canvas{
    margin-right: auto;
    margin-left: auto;
    display: block;
}

If you wanted to center it vertically, the canvas element needs to be absolutely positioned:

canvas{
    position: absolute;
    top: 50%;
    transform: translate(0, -50%);              
}

If you wanted to center it horizontally and vertically, do:

canvas{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);               
}

For more info visit: https://www.w3.org/Style/Examples/007/center.en.html

We can find these by looking at Bootstrap's stylesheet, Bootstrap.css. Each \{number} represents a hexadecimal value, so \2a is equal to 0x2a or *.

As for the font, that can be downloaded from http://glyphicons.com.

.glyphicon-asterisk:before {
  content: "\2a";
}

.glyphicon-plus:before {
  content: "\2b";
}

.glyphicon-euro:before {
  content: "\20ac";
}

.glyphicon-minus:before {
  content: "\2212";
}

.glyphicon-cloud:before {
  content: "\2601";
}

.glyphicon-envelope:before {
  content: "\2709";
}

.glyphicon-pencil:before {
  content: "\270f";
}

.glyphicon-glass:before {
  content: "\e001";
}

.glyphicon-music:before {
  content: "\e002";
}

.glyphicon-search:before {
  content: "\e003";
}

.glyphicon-heart:before {
  content: "\e005";
}

.glyphicon-star:before {
  content: "\e006";
}

.glyphicon-star-empty:before {
  content: "\e007";
}

.glyphicon-user:before {
  content: "\e008";
}

.glyphicon-film:before {
  content: "\e009";
}

.glyphicon-th-large:before {
  content: "\e010";
}

.glyphicon-th:before {
  content: "\e011";
}

.glyphicon-th-list:before {
  content: "\e012";
}

.glyphicon-ok:before {
  content: "\e013";
}

.glyphicon-remove:before {
  content: "\e014";
}

.glyphicon-zoom-in:before {
  content: "\e015";
}

.glyphicon-zoom-out:before {
  content: "\e016";
}

.glyphicon-off:before {
  content: "\e017";
}

.glyphicon-signal:before {
  content: "\e018";
}

.glyphicon-cog:before {
  content: "\e019";
}

.glyphicon-trash:before {
  content: "\e020";
}

.glyphicon-home:before {
  content: "\e021";
}

.glyphicon-file:before {
  content: "\e022";
}

.glyphicon-time:before {
  content: "\e023";
}

.glyphicon-road:before {
  content: "\e024";
}

.glyphicon-download-alt:before {
  content: "\e025";
}

.glyphicon-download:before {
  content: "\e026";
}

.glyphicon-upload:before {
  content: "\e027";
}

.glyphicon-inbox:before {
  content: "\e028";
}

.glyphicon-play-circle:before {
  content: "\e029";
}

.glyphicon-repeat:before {
  content: "\e030";
}

.glyphicon-refresh:before {
  content: "\e031";
}

.glyphicon-list-alt:before {
  content: "\e032";
}

.glyphicon-lock:before {
  content: "\e033";
}

.glyphicon-flag:before {
  content: "\e034";
}

.glyphicon-headphones:before {
  content: "\e035";
}

.glyphicon-volume-off:before {
  content: "\e036";
}

.glyphicon-volume-down:before {
  content: "\e037";
}

.glyphicon-volume-up:before {
  content: "\e038";
}

.glyphicon-qrcode:before {
  content: "\e039";
}

.glyphicon-barcode:before {
  content: "\e040";
}

.glyphicon-tag:before {
  content: "\e041";
}

.glyphicon-tags:before {
  content: "\e042";
}

.glyphicon-book:before {
  content: "\e043";
}

.glyphicon-bookmark:before {
  content: "\e044";
}

.glyphicon-print:before {
  content: "\e045";
}

.glyphicon-camera:before {
  content: "\e046";
}

.glyphicon-font:before {
  content: "\e047";
}

.glyphicon-bold:before {
  content: "\e048";
}

.glyphicon-italic:before {
  content: "\e049";
}

.glyphicon-text-height:before {
  content: "\e050";
}

.glyphicon-text-width:before {
  content: "\e051";
}

.glyphicon-align-left:before {
  content: "\e052";
}

.glyphicon-align-center:before {
  content: "\e053";
}

.glyphicon-align-right:before {
  content: "\e054";
}

.glyphicon-align-justify:before {
  content: "\e055";
}

.glyphicon-list:before {
  content: "\e056";
}

.glyphicon-indent-left:before {
  content: "\e057";
}

.glyphicon-indent-right:before {
  content: "\e058";
}

.glyphicon-facetime-video:before {
  content: "\e059";
}

.glyphicon-picture:before {
  content: "\e060";
}

.glyphicon-map-marker:before {
  content: "\e062";
}

.glyphicon-adjust:before {
  content: "\e063";
}

.glyphicon-tint:before {
  content: "\e064";
}

.glyphicon-edit:before {
  content: "\e065";
}

.glyphicon-share:before {
  content: "\e066";
}

.glyphicon-check:before {
  content: "\e067";
}

.glyphicon-move:before {
  content: "\e068";
}

.glyphicon-step-backward:before {
  content: "\e069";
}

.glyphicon-fast-backward:before {
  content: "\e070";
}

.glyphicon-backward:before {
  content: "\e071";
}

.glyphicon-play:before {
  content: "\e072";
}

.glyphicon-pause:before {
  content: "\e073";
}

.glyphicon-stop:before {
  content: "\e074";
}

.glyphicon-forward:before {
  content: "\e075";
}

.glyphicon-fast-forward:before {
  content: "\e076";
}

.glyphicon-step-forward:before {
  content: "\e077";
}

.glyphicon-eject:before {
  content: "\e078";
}

.glyphicon-chevron-left:before {
  content: "\e079";
}

.glyphicon-chevron-right:before {
  content: "\e080";
}

.glyphicon-plus-sign:before {
  content: "\e081";
}

.glyphicon-minus-sign:before {
  content: "\e082";
}

.glyphicon-remove-sign:before {
  content: "\e083";
}

.glyphicon-ok-sign:before {
  content: "\e084";
}

.glyphicon-question-sign:before {
  content: "\e085";
}

.glyphicon-info-sign:before {
  content: "\e086";
}

.glyphicon-screenshot:before {
  content: "\e087";
}

.glyphicon-remove-circle:before {
  content: "\e088";
}

.glyphicon-ok-circle:before {
  content: "\e089";
}

.glyphicon-ban-circle:before {
  content: "\e090";
}

.glyphicon-arrow-left:before {
  content: "\e091";
}

.glyphicon-arrow-right:before {
  content: "\e092";
}

.glyphicon-arrow-up:before {
  content: "\e093";
}

.glyphicon-arrow-down:before {
  content: "\e094";
}

.glyphicon-share-alt:before {
  content: "\e095";
}

.glyphicon-resize-full:before {
  content: "\e096";
}

.glyphicon-resize-small:before {
  content: "\e097";
}

.glyphicon-exclamation-sign:before {
  content: "\e101";
}

.glyphicon-gift:before {
  content: "\e102";
}

.glyphicon-leaf:before {
  content: "\e103";
}

.glyphicon-fire:before {
  content: "\e104";
}

.glyphicon-eye-open:before {
  content: "\e105";
}

.glyphicon-eye-close:before {
  content: "\e106";
}

.glyphicon-warning-sign:before {
  content: "\e107";
}

.glyphicon-plane:before {
  content: "\e108";
}

.glyphicon-calendar:before {
  content: "\e109";
}

.glyphicon-random:before {
  content: "\e110";
}

.glyphicon-comment:before {
  content: "\e111";
}

.glyphicon-magnet:before {
  content: "\e112";
}

.glyphicon-chevron-up:before {
  content: "\e113";
}

.glyphicon-chevron-down:before {
  content: "\e114";
}

.glyphicon-retweet:before {
  content: "\e115";
}

.glyphicon-shopping-cart:before {
  content: "\e116";
}

.glyphicon-folder-close:before {
  content: "\e117";
}

.glyphicon-folder-open:before {
  content: "\e118";
}

.glyphicon-resize-vertical:before {
  content: "\e119";
}

.glyphicon-resize-horizontal:before {
  content: "\e120";
}

.glyphicon-hdd:before {
  content: "\e121";
}

.glyphicon-bullhorn:before {
  content: "\e122";
}

.glyphicon-bell:before {
  content: "\e123";
}

.glyphicon-certificate:before {
  content: "\e124";
}

.glyphicon-thumbs-up:before {
  content: "\e125";
}

.glyphicon-thumbs-down:before {
  content: "\e126";
}

.glyphicon-hand-right:before {
  content: "\e127";
}

.glyphicon-hand-left:before {
  content: "\e128";
}

.glyphicon-hand-up:before {
  content: "\e129";
}

.glyphicon-hand-down:before {
  content: "\e130";
}

.glyphicon-circle-arrow-right:before {
  content: "\e131";
}

.glyphicon-circle-arrow-left:before {
  content: "\e132";
}

.glyphicon-circle-arrow-up:before {
  content: "\e133";
}

.glyphicon-circle-arrow-down:before {
  content: "\e134";
}

.glyphicon-globe:before {
  content: "\e135";
}

.glyphicon-wrench:before {
  content: "\e136";
}

.glyphicon-tasks:before {
  content: "\e137";
}

.glyphicon-filter:before {
  content: "\e138";
}

.glyphicon-briefcase:before {
  content: "\e139";
}

.glyphicon-fullscreen:before {
  content: "\e140";
}

.glyphicon-dashboard:before {
  content: "\e141";
}

.glyphicon-paperclip:before {
  content: "\e142";
}

.glyphicon-heart-empty:before {
  content: "\e143";
}

.glyphicon-link:before {
  content: "\e144";
}

.glyphicon-phone:before {
  content: "\e145";
}

.glyphicon-pushpin:before {
  content: "\e146";
}

.glyphicon-usd:before {
  content: "\e148";
}

.glyphicon-gbp:before {
  content: "\e149";
}

.glyphicon-sort:before {
  content: "\e150";
}

.glyphicon-sort-by-alphabet:before {
  content: "\e151";
}

.glyphicon-sort-by-alphabet-alt:before {
  content: "\e152";
}

.glyphicon-sort-by-order:before {
  content: "\e153";
}

.glyphicon-sort-by-order-alt:before {
  content: "\e154";
}

.glyphicon-sort-by-attributes:before {
  content: "\e155";
}

.glyphicon-sort-by-attributes-alt:before {
  content: "\e156";
}

.glyphicon-unchecked:before {
  content: "\e157";
}

.glyphicon-expand:before {
  content: "\e158";
}

.glyphicon-collapse-down:before {
  content: "\e159";
}

.glyphicon-collapse-up:before {
  content: "\e160";
}

.glyphicon-log-in:before {
  content: "\e161";
}

.glyphicon-flash:before {
  content: "\e162";
}

.glyphicon-log-out:before {
  content: "\e163";
}

.glyphicon-new-window:before {
  content: "\e164";
}

.glyphicon-record:before {
  content: "\e165";
}

.glyphicon-save:before {
  content: "\e166";
}

.glyphicon-open:before {
  content: "\e167";
}

.glyphicon-saved:before {
  content: "\e168";
}

.glyphicon-import:before {
  content: "\e169";
}

.glyphicon-export:before {
  content: "\e170";
}

.glyphicon-send:before {
  content: "\e171";
}

.glyphicon-floppy-disk:before {
  content: "\e172";
}

.glyphicon-floppy-saved:before {
  content: "\e173";
}

.glyphicon-floppy-remove:before {
  content: "\e174";
}

.glyphicon-floppy-save:before {
  content: "\e175";
}

.glyphicon-floppy-open:before {
  content: "\e176";
}

.glyphicon-credit-card:before {
  content: "\e177";
}

.glyphicon-transfer:before {
  content: "\e178";
}

.glyphicon-cutlery:before {
  content: "\e179";
}

.glyphicon-header:before {
  content: "\e180";
}

.glyphicon-compressed:before {
  content: "\e181";
}

.glyphicon-earphone:before {
  content: "\e182";
}

.glyphicon-phone-alt:before {
  content: "\e183";
}

.glyphicon-tower:before {
  content: "\e184";
}

.glyphicon-stats:before {
  content: "\e185";
}

.glyphicon-sd-video:before {
  content: "\e186";
}

.glyphicon-hd-video:before {
  content: "\e187";
}

.glyphicon-subtitles:before {
  content: "\e188";
}

.glyphicon-sound-stereo:before {
  content: "\e189";
}

.glyphicon-sound-dolby:before {
  content: "\e190";
}

.glyphicon-sound-5-1:before {
  content: "\e191";
}

.glyphicon-sound-6-1:before {
  content: "\e192";
}

.glyphicon-sound-7-1:before {
  content: "\e193";
}

.glyphicon-copyright-mark:before {
  content: "\e194";
}

.glyphicon-registration-mark:before {
  content: "\e195";
}

.glyphicon-cloud-download:before {
  content: "\e197";
}

.glyphicon-cloud-upload:before {
  content: "\e198";
}

.glyphicon-tree-conifer:before {
  content: "\e199";
}

.glyphicon-tree-deciduous:before {
  content: "\e200";
}

Using show() adds display:block in place of display:hide which might break things.

To avoid that, you can have a class with property display:none and toggle that class for that element with toggleClass().

$("button").on('click', function(event){  $("div").toggleClass("hide"); });

.hide{_x000D_
   display:none;_x000D_
}_x000D_
_x000D_
div{_x000D_
   width:40px;_x000D_
   height:40px;_x000D_
   background:#000;_x000D_
   margin-bottom:20px;_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<div></div>_x000D_
<button>Toggle Box</button>

None of the answers mentioned this.

User rrs answer is right but that only tells you the number of NA values in the particular column of the data frame that you are passing to get the number of NA values for the whole data frame try this:

apply(<name of dataFrame>, 2<for getting column stats>, function(x) {sum(is.na(x))})

This does the trick

I agree with the answers 1 and 2. However, I prefer to specify each library separately. This makes the depencencies clearer in big projects. Yet, there is the danger of mistyping the (case-sensitive) variable names. In that case there is no direct cmake error but some undefined references linker issues later on, which may take some time to resolve. Therefore I use the following cmake function:

function(VerifyVarDefined)
  foreach(lib ${ARGV}) 
    if(DEFINED ${lib})
    else(DEFINED ${lib})
      message(SEND_ERROR "Variable ${lib} is not defined")
    endif(DEFINED ${lib})
  endforeach()
endfunction(VerifyVarDefined)

For the example mentioned above, this looks like:

VerifyVarDefined(Boost_PROGRAM_OPTIONS_LIBRARY Boost_REGEX_LIBRARY)
target_link_libraries( run ${Boost_PROGRAM_OPTIONS_LIBRARY} ${Boost_REGEX_LIBRARY} )

If I had written "BOOST_PROGRAM_OPTIONS_LIBRARY" there would have been an error triggered by cmake and not much later triggered by the linker.

requests

https://github.com/kennethreitz/requests/

Here's a few common ways to use it:

import requests
url = 'https://...'
payload = {'key1': 'value1', 'key2': 'value2'}

# GET
r = requests.get(url)

# GET with params in URL
r = requests.get(url, params=payload)

# POST with form-encoded data
r = requests.post(url, data=payload)

# POST with JSON 
import json
r = requests.post(url, data=json.dumps(payload))

# Response, status etc
r.text
r.status_code

httplib2

https://github.com/jcgregorio/httplib2

>>> from httplib2 import Http
>>> from urllib import urlencode
>>> h = Http()
>>> data = dict(name="Joe", comment="A test comment")
>>> resp, content = h.request("http://bitworking.org/news/223/Meet-Ares", "POST", urlencode(data))
>>> resp
{'status': '200', 'transfer-encoding': 'chunked', 'vary': 'Accept-Encoding,User-Agent',
 'server': 'Apache', 'connection': 'close', 'date': 'Tue, 31 Jul 2007 15:29:52 GMT', 
 'content-type': 'text/html'}

ISO compliant dateString

If your dateString is RFC282 and ISO8601 compliant:
pass your string into the Date Constructor:

const dateString = "2020-10-30T12:52:27+05:30"; // ISO8601 compliant dateString
const D = new Date(dateString);                 // {object Date}

from here you can extract the desired values by using Date Getters:

D.getMonth() + 1  // 10 (PS: +1 since Month is 0-based)
D.getDate()       // 30
D.getFullYear()   // 2020

Non-standard date string

If you use a non standard date string:
destructure the string into known parts, and than pass the variables to the Date Constructor:

new Date(year, monthIndex [, day [, hours [, minutes [, seconds [, milliseconds]]]]])

const dateString = "30/10/2020 12:52:27";
const [d, M, y, h, m, s] = dateString.match(/\d+/g);

// PS: M-1 since Month is 0-based
const D = new Date(y, M-1, d, h, m, s);  // {object Date}


D.getMonth() + 1  // 10 (PS: +1 since Month is 0-based)
D.getDate()       // 30
D.getFullYear()   // 2020

According to some comments on Super User it still works :) It just should be copied back to the plugins folder (if it's in the disabled folder) or downloaded from Plugins Central. I have downloaded it a few minutes ago and succeeded in using it.

Of course, be warned: this plugin COULD be unstable in some situations - that's why it was disabled.

Just use contains

myFunction(strings.contains(myString))

I made this for a webservice to requerst on URL, using a Gson lib:

Client:

public EstabelecimentoList getListaEstabelecimentoPorPromocao(){

        EstabelecimentoList estabelecimentoList  = new EstabelecimentoList();
        try{
            URL url = new URL("http://" +  Conexao.getSERVIDOR()+ "/cardapio.online/rest/recursos/busca_estabelecimento_promocao_android");
            HttpURLConnection con = (HttpURLConnection) url.openConnection();

            if (con.getResponseCode() != 200) {
                    throw new RuntimeException("HTTP error code : "+ con.getResponseCode());
            }

            BufferedReader br = new BufferedReader(new InputStreamReader((con.getInputStream())));
            estabelecimentoList = new Gson().fromJson(br, EstabelecimentoList.class);
            con.disconnect();

        } catch (IOException e) {
            e.printStackTrace();
        }
        return estabelecimentoList;
}

EDIT: I am maintaining a similar, but more in-depth answer at: https://stackoverflow.com/a/28380690/895245

To see exactly what is happening, use nc -l and an user agent like a browser or cURL.

Save the form to an .html file:

<form action="http://localhost:8000" method="post" enctype="multipart/form-data">
  <p><input type="text" name="text" value="text default">
  <p><input type="file" name="file1">
  <p><input type="file" name="file2">
  <p><button type="submit">Submit</button>
</form>

Create files to upload:

echo 'Content of a.txt.' > a.txt
echo '<!DOCTYPE html><title>Content of a.html.</title>' > a.html

Run:

nc -l localhost 8000

Open the HTML on your browser, select the files and click on submit and check the terminal.

nc prints the request received. Firefox sent:

POST / HTTP/1.1
Host: localhost:8000
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Firefox/29.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Cookie: __atuvc=34%7C7; permanent=0; _gitlab_session=226ad8a0be43681acf38c2fab9497240; __profilin=p%3Dt; request_method=GET
Connection: keep-alive
Content-Type: multipart/form-data; boundary=---------------------------9051914041544843365972754266
Content-Length: 554

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="text"

text default
-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file1"; filename="a.txt"
Content-Type: text/plain

Content of a.txt.

-----------------------------9051914041544843365972754266
Content-Disposition: form-data; name="file2"; filename="a.html"
Content-Type: text/html

<!DOCTYPE html><title>Content of a.html.</title>

-----------------------------9051914041544843365972754266--

Aternativelly, cURL should send the same POST request as your a browser form:

nc -l localhost 8000
curl -F "text=default" -F "[email protected]" -F "[email protected]" localhost:8000

You can do multiple tests with:

while true; do printf '' | nc -l localhost 8000; done

Extract single value from JSON response Python

Try this

import json
import sys

#load the data into an element
data={"test1" : "1", "test2" : "2", "test3" : "3"}

#dumps the json object into an element
json_str = json.dumps(data)

#load the json to a string
resp = json.loads(json_str)

#print the resp
print (resp)

#extract an element in the response
print (resp['test1'])

You need to include the appropriate header

#include <stdio.h>

If you're not sure which header a standard function is defined in, the function's man page will state this.

Simplistically malloc and free work like this:

malloc provides access to a process's heap. The heap is a construct in the C core library (commonly libc) that allows objects to obtain exclusive access to some space on the process's heap.

Each allocation on the heap is called a heap cell. This typically consists of a header that hold information on the size of the cell as well as a pointer to the next heap cell. This makes a heap effectively a linked list.

When one starts a process, the heap contains a single cell that contains all the heap space assigned on startup. This cell exists on the heap's free list.

When one calls malloc, memory is taken from the large heap cell, which is returned by malloc. The rest is formed into a new heap cell that consists of all the rest of the memory.

When one frees memory, the heap cell is added to the end of the heap's free list. Subsequent malloc's walk the free list looking for a cell of suitable size.

As can be expected the heap can get fragmented and the heap manager may from time to time, try to merge adjacent heap cells.

When there is no memory left on the free list for a desired allocation, malloc calls brk or sbrk which are the system calls requesting more memory pages from the operating system.

Now there are a few modification to optimize heap operations.

• For large memory allocations (typically > 512 bytes, the heap manager may go straight to the OS and allocate a full memory page.
• The heap may specify a minimum size of allocation to prevent large amounts of fragmentation.
• The heap may also divide itself into bins one for small allocations and one for larger allocations to make larger allocations quicker.
• There are also clever mechanisms for optimizing multi-threaded heap allocation.

You can use the Sum function, but you'll have to convert the strings to integers, like so:

int total = monValues.Sum(x => Convert.ToInt32(x));

to demonstrate the lambda x:[f1(),f2()] effect which enables us to execute multiple functions in lambda. it also demonstrates the single line if else conditions if you really want to shrink the code.

• note that f1() can be a lambda function also(recursive lambda or lambda within lambda). and that inner lambda can be a statement/function of your choice.
• you can also put exec('statement') for example lambda x:[exec('a=[1]'),exec('b=2')]

a python implementation of touch(linux) command which creates empty files if they are not already existing.

def touch(fpath):
    check= os.path.exists(fpath)
    (lambda fname1:[open(fname1,"w+",errors="ignore").write(""),print('Touched',fname1)] 
    if not check else None) (fpath)

will print [ Touched fpath ] where fpath is file path given as input. will do nothing if file already exist.

the (lambda x: [ f(x), f2(x) ] ) (inp) <- we pass the 'inp' as input to lambda which in this case is the fpath.

This is compatible with the standards-based browsers, but will probably fail in IE. I'm providing it as a starting point. IE doesn't support DOM Range.

var editable = document.getElementById('editable'),
    selection, range;

// Populates selection and range variables
var captureSelection = function(e) {
    // Don't capture selection outside editable region
    var isOrContainsAnchor = false,
        isOrContainsFocus = false,
        sel = window.getSelection(),
        parentAnchor = sel.anchorNode,
        parentFocus = sel.focusNode;

    while(parentAnchor && parentAnchor != document.documentElement) {
        if(parentAnchor == editable) {
            isOrContainsAnchor = true;
        }
        parentAnchor = parentAnchor.parentNode;
    }

    while(parentFocus && parentFocus != document.documentElement) {
        if(parentFocus == editable) {
            isOrContainsFocus = true;
        }
        parentFocus = parentFocus.parentNode;
    }

    if(!isOrContainsAnchor || !isOrContainsFocus) {
        return;
    }

    selection = window.getSelection();

    // Get range (standards)
    if(selection.getRangeAt !== undefined) {
        range = selection.getRangeAt(0);

    // Get range (Safari 2)
    } else if(
        document.createRange &&
        selection.anchorNode &&
        selection.anchorOffset &&
        selection.focusNode &&
        selection.focusOffset
    ) {
        range = document.createRange();
        range.setStart(selection.anchorNode, selection.anchorOffset);
        range.setEnd(selection.focusNode, selection.focusOffset);
    } else {
        // Failure here, not handled by the rest of the script.
        // Probably IE or some older browser
    }
};

// Recalculate selection while typing
editable.onkeyup = captureSelection;

// Recalculate selection after clicking/drag-selecting
editable.onmousedown = function(e) {
    editable.className = editable.className + ' selecting';
};
document.onmouseup = function(e) {
    if(editable.className.match(/\sselecting(\s|$)/)) {
        editable.className = editable.className.replace(/ selecting(\s|$)/, '');
        captureSelection();
    }
};

editable.onblur = function(e) {
    var cursorStart = document.createElement('span'),
        collapsed = !!range.collapsed;

    cursorStart.id = 'cursorStart';
    cursorStart.appendChild(document.createTextNode('—'));

    // Insert beginning cursor marker
    range.insertNode(cursorStart);

    // Insert end cursor marker if any text is selected
    if(!collapsed) {
        var cursorEnd = document.createElement('span');
        cursorEnd.id = 'cursorEnd';
        range.collapse();
        range.insertNode(cursorEnd);
    }
};

// Add callbacks to afterFocus to be called after cursor is replaced
// if you like, this would be useful for styling buttons and so on
var afterFocus = [];
editable.onfocus = function(e) {
    // Slight delay will avoid the initial selection
    // (at start or of contents depending on browser) being mistaken
    setTimeout(function() {
        var cursorStart = document.getElementById('cursorStart'),
            cursorEnd = document.getElementById('cursorEnd');

        // Don't do anything if user is creating a new selection
        if(editable.className.match(/\sselecting(\s|$)/)) {
            if(cursorStart) {
                cursorStart.parentNode.removeChild(cursorStart);
            }
            if(cursorEnd) {
                cursorEnd.parentNode.removeChild(cursorEnd);
            }
        } else if(cursorStart) {
            captureSelection();
            var range = document.createRange();

            if(cursorEnd) {
                range.setStartAfter(cursorStart);
                range.setEndBefore(cursorEnd);

                // Delete cursor markers
                cursorStart.parentNode.removeChild(cursorStart);
                cursorEnd.parentNode.removeChild(cursorEnd);

                // Select range
                selection.removeAllRanges();
                selection.addRange(range);
            } else {
                range.selectNode(cursorStart);

                // Select range
                selection.removeAllRanges();
                selection.addRange(range);

                // Delete cursor marker
                document.execCommand('delete', false, null);
            }
        }

        // Call callbacks here
        for(var i = 0; i < afterFocus.length; i++) {
            afterFocus[i]();
        }
        afterFocus = [];

        // Register selection again
        captureSelection();
    }, 10);
};

If someone is looking for a way to parse float from an arbitrary string,

it can be done like that:

function extractFloat(text) {
  const match = text.match(/\d+((\.|,)\d+)?/)
  return match && match[0]
}

extractFloat('some text with float 5.25') // 5.25

Thanks to both of you. This worked perfectly for me.

$("input[type='text'][id*=" + strID + "]:visible").each(function() {
    this.value=strVal;
});

var arr = [];
for(var i=1; i<=mynumber; i++) {
   arr.push(i.toString());
}

After pip install spyder give this command

pip install --upgrade spyder

This command will update all Spyder dependencies.

Now in command prompt(cmd) navigate to the scripts folder in your python directory. In my system the path is C:\Users\win10\AppData\Local\Programs\Python\Python36-32\Scripts so i use the following command in command prompt.

cd C:\Users\win10\AppData\Local\Programs\Python\Python36-32\Scripts

once you are inside scripts directory type spyder3 and press enter and spyder ide starts.

C:\Users\win10\AppData\Local\Programs\Python\Python36-32\Scripts>spyder3

Why don't you just save/serve the CSS file as UTF-8?

nav a:hover:after {
    content: "?";
}

If that's not good enough, and you want to keep it all-ASCII:

nav a:hover:after {
    content: "\2193";
}

The general format for a Unicode character inside a string is \000000 to \FFFFFF – a backslash followed by six hexadecimal digits. You can leave out leading 0 digits when the Unicode character is the last character in the string or when you add a space after the Unicode character. See the spec below for full details.

Relevant part of the CSS2 spec:

Third, backslash escapes allow authors to refer to characters they cannot easily put in a document. In this case, the backslash is followed by at most six hexadecimal digits (0..9A..F), which stand for the ISO 10646 ([ISO10646]) character with that number, which must not be zero. (It is undefined in CSS 2.1 what happens if a style sheet does contain a character with Unicode codepoint zero.) If a character in the range [0-9a-fA-F] follows the hexadecimal number, the end of the number needs to be made clear. There are two ways to do that:

1. with a space (or other white space character): "\26 B" ("&B"). In this case, user agents should treat a "CR/LF" pair (U+000D/U+000A) as a single white space character.
2. by providing exactly 6 hexadecimal digits: "\000026B" ("&B")

In fact, these two methods may be combined. Only one white space character is ignored after a hexadecimal escape. Note that this means that a "real" space after the escape sequence must be doubled.

If the number is outside the range allowed by Unicode (e.g., "\110000" is above the maximum 10FFFF allowed in current Unicode), the UA may replace the escape with the "replacement character" (U+FFFD). If the character is to be displayed, the UA should show a visible symbol, such as a "missing character" glyph (cf. 15.2, point 5).

• Note: Backslash escapes are always considered to be part of an identifier or a string (i.e., "\7B" is not punctuation, even though "{" is, and "\32" is allowed at the start of a class name, even though "2" is not).
  The identifier "te\st" is exactly the same identifier as "test".

Comprehensive list: Unicode Character 'DOWNWARDS ARROW' (U+2193).

The other answers here presuppose that you have a regex engine which supports non-greedy matching, which is an extension introduced in Perl 5 and widely copied to other modern languages; but it is by no means ubiquitous.

Many older or more conservative languages and editors only support traditional regular expressions, which have no mechanism for controlling greediness of the repetition operator * - it always matches the longest possible string.

The trick then is to limit what it's allowed to match in the first place. Instead of .* you seem to be looking for

[^>]*

which still matches as many of something as possible; but the something is not just . "any character", but instead "any character which isn't >".

Depending on your application, you may or may not want to enable an option to permit "any character" to include newlines.

Even if your regular expression engine supports non-greedy matching, it's better to spell out what you actually mean. If this is what you mean, you should probably say this, instead of rely on non-greedy matching to (hopefully, probably) Do What I Mean.

For example, a regular expression with a trailing context after the wildcard like .*?><br/> will jump over any nested > until it finds the trailing context (here, ><br/>) even if that requires straddling multiple > instances and newlines if you let it, where [^>]*><br/> (or even [^\n>]*><br/> if you have to explicitly disallow newline) obviously can't and won't do that.

Of course, this is still not what you want if you need to cope with <img title="quoted string with > in it" src="other attributes"> and perhaps <img title="nested tags">, but at that point, you should finally give up on using regular expressions for this like we all told you in the first place.

If you open your module settings (F4) you can nominate which paths contain 'source'. Intellij will then mark these directories in blue and allow you to add classes etc.

In a similar fashion you can highlight test directories for unit tests.

swift 4

In viewDidLoad():

    //ADD BUTTON TO DISMISS KEYBOARD

    // Init a keyboard toolbar 
    let toolbar = UIView(frame: CGRect(x: 0, y: view.frame.size.height+44, width: view.frame.size.width, height: 44))
    toolbar.backgroundColor = UIColor.clear

    // Add done button
    let doneButt = UIButton(frame: CGRect(x: toolbar.frame.size.width - 60, y: 0, width: 44, height: 44))
    doneButt.setTitle("Done", for: .normal)
    doneButt.setTitleColor(MAIN_COLOR, for: .normal)
    doneButt.titleLabel?.font = UIFont(name: "Titillium-Semibold", size: 13)
    doneButt.addTarget(self, action: #selector(dismissKeyboard), for: .touchUpInside)
    toolbar.addSubview(doneButt)

    USDTextField.inputAccessoryView = toolbar

Add this function:

    @objc func dismissKeyboard() {
      //Causes the view (or one of its embedded text fields) to resign the first responder status.
      view.endEditing(true)
    }

Yup, it's called JSONPath:

It's also integrated into DOJO.

I found the best solution for this problem by using ON with $(document).

 $(document).on('click', '#yourid', function() { alert("hello"); });

for id start with see below:

$(document).on('click', 'div[id^="start"]', function() {
alert ('hello'); });

finally after 1 week I not need to add onclick triger. I hope this will help many people

why dont you add a "source" column to each of the queries with a static value like

select 'source 1' as Source, column1, column2...
from table1

UNION ALL

select 'source 2' as Source, column1, column2...
from table2

This seems to work, although still a bit verbose (I'd like something shorter still):

@BeforeClass
public static void beforeClass() {
    System.setProperty("some.property", "<value>");
}

// Optionally:
@AfterClass
public static void afterClass() {
    System.clearProperty("some.property");
}

You can use library easy-file-manager

install first from npm npm install easy-file-manager

Sample to upload and remove files

var filemanager = require('easy-file-manager')
var path = "/public"
var filename = "test.jpg"
var data; // buffered image

filemanager.upload(path,filename,data,function(err){
    if (err) console.log(err);
});

filemanager.remove(path,"aa,filename,function(isSuccess){
    if (err) console.log(err);
});

df = df.assign(New_ID=[880 + i for i in xrange(len(df))])[['New_ID'] + df.columns.tolist()]

>>> df
   New_ID  ID   Fruit
0     880  F1   Apple
1     881  F2  Orange
2     882  F3  Banana

For ASP.NET Web Api 2, this post from MS suggests to change the method's return type to IHttpActionResult. You can then return a built in IHttpActionResult implementation like Ok, BadRequest, etc (see here) or return your own implementation.

For your code, it could be done like:

public IHttpActionResult GetUser(int userId, DateTime lastModifiedAtClient)
{
    var user = new DataEntities().Users.First(p => p.Id == userId);
    if (user.LastModified <= lastModifiedAtClient)
    {
        return StatusCode(HttpStatusCode.NotModified);
    }
    return Ok(user);
}

NPM has created a node_modules directory at '/home/jasonshark/' path.

From your question it looks like you wanted node_modules to be created in the current directory.

For that,

1. Create project directory: mkdir <project-name>
2. Switch to: cd <project-name>
3. Do: npm init This will create package.json file at current path

4. Open package.json & fill it something like below

   {
       "name": "project-name",
       "version": "project-version",
       "dependencies": {
           "mongodb": "*"
       }
   }
   

5. Now do : npm install OR npm update

Now it will create node_modules directory under folder 'project-name' you created.

Dir function loses focus easily when I handle and process files from other folders.

I've gotten better results with the component FileSystemObject.

Full example is given here:

http://www.xl-central.com/list-files-fso.html

Don't forget to set a reference in the Visual Basic Editor to Microsoft Scripting Runtime (by using Tools > References)

Give it a try!

The solution of @Ashivad mostly fixed my problem, but I needed to make this one-line addition to prevent the input to be erased after the results dropdown is displayed:

in success callback of the autocomplete added this line after triggering chosen:updated:

$combosearchChosen.find('input').val(request.term);

Complete listing:

var $combosearch = $('[data-combosearch]');
if (!$combosearch.length) {
  return;
}

var options = $combosearch.data('options');
console.log('combosearch', $combosearch, options);

$combosearch.chosen({
  no_results_text: "Oops, nothing found!",
  width: "60%"
});

// actual chosen container
var $combosearchChosen = $combosearch.next();

$combosearchChosen.find('input').autocomplete({
  source: function( request, response ) {
    $.ajax({
      url: options.remote_source + "&query=" + request.term,
      dataType: "json",
      beforeSend: function(){
        $('ul.chosen-results').empty();
      },
      success: function( data ) {
        response( $.map( data, function( item, index ) {
          $combosearch.append('<option value="' + item.id + '">' + item.label + '</option>');
        }));
        $combosearch.trigger('chosen:updated');
        $combosearchChosen.find('input').val(request.term);
      }
    });
  }
});

I use highcharts. They are very interactive (and very fancy I might add). You do have to get a little creative to access data from MySQL database, but if you have a general understanding of JavaScript and PHP, you should have no problems.

By default, Maven will always look in the official Maven repository, which is http://repo1.maven.org.

When Maven tries to build a project, it will look in your local repository (by default ~/.m2/repository but you can configure it by changing the <localRepository> value in your ~/.m2/settings.xml) to find any dependency, plugin or report defined in your pom.xml. If the adequate artifact is not found in your local repository, it will look in all external repositories configured, starting with the default one, http://repo1.maven.org.

You can configure Maven to avoid this default repository by setting a mirror in your settings.xml file:

<mirrors>
    <mirror>
        <id>repoMirror</id>
        <name>Our mirror for Maven repository</name>
        <url>http://the/server/</url>
        <mirrorOf>*</mirrorOf>
    </mirror>
</mirrors>

This way, instead of contacting http://repo1.maven.org, Maven will contact your entreprise repository (http://the/server in this example).

If you want to add another repository, you can define a new one in your settings.xml file:

<profiles>
    <profile>
        <activation>
            <activeByDefault>true</activeByDefault>
        </activation>
        <repositories>
            <repository>
                <id>foo.bar</id>
                <releases>
                    <enabled>true</enabled>
                </releases>
                <snapshots>
                    <enabled>true</enabled>
                </snapshots>
                <url>http://new/repository/server</url>
            </repository>
        </repositories>

You can see the complete settings.xml model here.

Concerning the clean process, you can ask Maven to run it offline. In this case, Maven will not try to reach any external repositories:

mvn -o clean 

It's pretty easy. First of all send to the view decoded variable (see Laravel Views):

view('your-view')->with('leads', json_decode($leads, true));

Then just use common blade constructions (see Laravel Templating):

@foreach($leads['member'] as $member)
    Member ID: {{ $member['id'] }}
    Firstname: {{ $member['firstName'] }}
    Lastname: {{ $member['lastName'] }}
    Phone: {{ $member['phoneNumber'] }}

    Owner ID: {{ $member['owner']['id'] }}
    Firstname: {{ $member['owner']['firstName'] }} 
    Lastname: {{ $member['owner']['lastName'] }}
@endforeach

Both old and accepted, however, I'll just leave this here:

function dump(){
    echo (php_sapi_name() !== 'cli') ? '<pre>' : '';
    foreach(func_get_args() as $arg){
        echo preg_replace('#\n{2,}#', "\n", print_r($arg, true));
    }
    echo (php_sapi_name() !== 'cli') ? '</pre>' : '';
}

Takes an arbitrary number of arguments, and wraps each in <pre> for CGI requests. In CLI requests it skips the <pre> tag generation for clean output.

dump(array('foo'), array('bar', 'zip'));
/*
CGI request                          CLI request

<pre>                                Array
Array                                (
(                                        [0] => foo
    [0] => foo                       )
)                                    Array
</pre>                               (
<pre>                                    [0] => bar
Array                                    [1] => zip
(                                    )
    [0] => bar
    [0] => zip
)
</pre>

In case you want to do it programmatically,

checkBoxOrRadioButton.setButtonDrawable(null);
checkBoxOrRadioButton.setBackgroundResource(R.drawable.resource_name);

import java.util.*;

class Array {
    public static void main(String args[]) {
        ArrayList al = new ArrayList();
        al.add("google");
        al.add("microsoft");
        al.add("apple");
        System.out.println(al);
        //i only remove the apple//
        al.remove(2);
        System.out.println(al);
    }
}

The accepted answer is the correct way to do this in most cases. However, there are some situations where you want to set the cookie header manually. Normally if you set a "Cookie" header it is ignored, but that's because HttpClientHandler defaults to using its CookieContainer property for cookies. If you disable that then by setting UseCookies to false you can set cookie headers manually and they will appear in the request, e.g.

var baseAddress = new Uri("http://example.com");
using (var handler = new HttpClientHandler { UseCookies = false })
using (var client = new HttpClient(handler) { BaseAddress = baseAddress })
{
    var message = new HttpRequestMessage(HttpMethod.Get, "/test");
    message.Headers.Add("Cookie", "cookie1=value1; cookie2=value2");
    var result = await client.SendAsync(message);
    result.EnsureSuccessStatusCode();
}

Cursor might used for retrieving data row by row basis.its act like a looping statement(ie while or for loop). To use cursors in SQL procedures, you need to do the following: 1.Declare a cursor that defines a result set. 2.Open the cursor to establish the result set. 3.Fetch the data into local variables as needed from the cursor, one row at a time. 4.Close the cursor when done.

for ex:

declare @tab table
(
Game varchar(15),
Rollno varchar(15)
)
insert into @tab values('Cricket','R11')
insert into @tab values('VollyBall','R12')

declare @game  varchar(20)
declare @Rollno varchar(20)

declare cur2 cursor for select game,rollno from @tab 

open cur2

fetch next from cur2 into @game,@rollno

WHILE   @@FETCH_STATUS = 0   
begin

print @game

print @rollno

FETCH NEXT FROM cur2 into @game,@rollno

end

close cur2

deallocate cur2

it is just a sample to avoid max recursion error. we have to use option (maxrecursion 365); or option (maxrecursion 0);

DECLARE @STARTDATE datetime; 
DECLARE @EntDt datetime; 
set @STARTDATE = '01/01/2009';  
set @EntDt = '12/31/2009'; 
declare @dcnt int; 
;with DateList as   
 (   
    select @STARTDATE DateValue   
    union all   
    select DateValue + 1 from    DateList      
    where   DateValue + 1 < convert(VARCHAR(15),@EntDt,101)   
 )   
  select count(*) as DayCnt from (   
  select DateValue,DATENAME(WEEKDAY, DateValue ) as WEEKDAY from DateList
  where DATENAME(WEEKDAY, DateValue ) not IN ( 'Saturday','Sunday' )     
  )a
option (maxrecursion 365);

As an alternate solution that may work in some cases: change the border-style to dotted.

Having alternating groups of pixels between the foreground color and the background color isn't the same as a continuous line of partially transparent pixels. On the other hand, this requires significantly less CSS and it is much more compatible across every browser without any browser-specific directives.

I have solved this issue. If you are not able to open "SDK Manager.exe" from explorer or if you are facing any problem with SDK Manager.

Firstly check Java path is given in Environment Variable. (run Java command on CMD, or run Where Java on CMD as Administrator). If Java command is recognized, there might not be problem with Java

This might be due to broken SDK Tools. To fix it firstly rename tools folder (Android\Sdk\tools) to tools.old. Now download https://dl.google.com/android /repository/tools_r25.2.3-windows.zip?hl=id. After that Extract the downloaded zip files to Android\Sdk\ hence new tools folder would be extracted with all the contents for SDK. Now open SDK Manager.exe. If it opens your issue is solved. Please note that SDK Manager.exe is a launcher file that launches Android\Sdk\tools\bin\sdkmanager.bat. if you are satisfied with the answer please Upvote so that maximum users would solve the issue. For further help visit this page https://answers.unity.com/questions/1320150/unable-to-list-target-platform.html

you can use this for making a list Unique

ArrayList<String> listWithDuplicateValues = new ArrayList<>();
list.add("first");
list.add("first");
list.add("second");

ArrayList uniqueList = (ArrayList) listWithDuplicateValues.stream().distinct().collect(Collectors.toList());

Might as well throw up an actual response with my solution, which was inspired by Peter Liljenberg's:

$ mpstat | awk '$12 ~ /[0-9.]+/ { print 100 - $12"%" }'
0.75%

This will use awk to print out 100 minus the 12th field (idle), with a percentage sign after it. awk will only do this for a line where the 12th field has numbers and dots only ($12 ~ /[0-9]+/).

You can also average five samples, one second apart:

$ mpstat 1 5 | awk 'END{print 100-$NF"%"}'

Test it like this:

$ mpstat 1 5 | tee /dev/tty | awk 'END{print 100-$NF"%"}'

You can use HttpPost, there are methods to add Header to the Request.

DefaultHttpClient httpclient = new DefaultHttpClient();
String url = "http://localhost";
HttpPost httpPost = new HttpPost(url);

httpPost.addHeader("header-name" , "header-value");

HttpResponse response = httpclient.execute(httpPost);

You need to add import com.fasterxml.jackson.annotation.JsonInclude;

Add

@JsonInclude(JsonInclude.Include.NON_NULL)

on top of POJO

If you have nested POJO then

@JsonInclude(JsonInclude.Include.NON_NULL)

need to add on every values.

NOTE: JAXRS (Jersey) automatically handle this scenario 2.6 and above.

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

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

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

Oracle support Mathematical Subtract - operator on Data datatype. You may directly put in select clause following statement:

to_char (s.last_upd – s.created, ‘999999D99')

Check the EXAMPLE for more visibility.

In case you need the output in termes of hours, then the below might help;

Select to_number(substr(numtodsinterval([END_TIME]-[START_TIME]),’day’,2,9))*24 +
to_number(substr(numtodsinterval([END_TIME]-[START_TIME],’day’),12,2))
||':’||to_number(substr(numtodsinterval([END_TIME]-[START_TIME],’day’),15,2)) 
from [TABLE_NAME];

Inside Eclipse I've used the Clay plugin (ex Clay-Azurri). The free version allows to introspect ("reverse engineer") an existing DB schema (via JDBC) and make a diagram of some selected tables.

when you use lxml all simple:

tree = lxml.html.fromstring(html)
i_need_element = tree.xpath('//a[@class="shared-components"]/@href')

but when use BeautifulSoup BS4 all simple too:

• first remove "//" and "@"
• second - add star before "="

try this magic:

soup = BeautifulSoup(html, "lxml")
i_need_element = soup.select ('a[class*="shared-components"]')

as you see, this does not support sub-tag, so i remove "/@href" part

d = DateTime.now.utc

Oops!

That seems to work in Rails, but not vanilla Ruby (and of course that is what the question is asking)

d = Time.now.utc

Does work however.

Is there any reason you need to use DateTime and not Time? Time should include everything you need:

irb(main):016:0> Time.now
=> Thu Apr 16 12:40:44 +0100 2009

SET  @num := 0;

UPDATE your_table SET id = @num := (@num+1);

ALTER TABLE your_table AUTO_INCREMENT =1;

I think this will do it

For non-grouped elements, name and id should be same. In this case you gave name as 'sp' and id as 'sp_100'. Don't do that, do it like this:

HTML:

<input type="hidden" id="msg" name="msg" value="" style="display:none"/>
<input type="checkbox" name="sp" value="100" id="sp">

Javascript:

var Msg="abc";
document.getElementById('msg').value = Msg;
document.getElementById('sp').checked = true;

For more details

please visit : http://www.impressivewebs.com/avoiding-problems-with-javascript-getelementbyid-method-in-internet-explorer-7/

I did something like this in my project. I would like to share it here. You can add another div as a child and give it a border with small width and place it left, centre or right with usual CSS

HTML code:

    <div>
        content 
        <div class ="ac-brdr"></div>
    </div>

CSS as below:

   .active {
    color: magneta;
  }
   .active .ac-brdr {
        width: 20px;
        margin: 0 auto;
        border-bottom: 1px solid magneta;
  }

When you encounter exceptions like this, the most useful information is generally at the bottom of the stacktrace:

Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
  at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
  ...
  at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:246)

The problem is that Tomcat can't find com.mysql.jdbc.Driver. This is usually caused by the JAR containing the MySQL driver not being where Tomcat expects to find it (namely in the webapps/<yourwebapp>/WEB-INF/lib directory).

My laptop did not have Break nor Scr Lock, so I somehow managed to make it work by pressing Ctrl + Function + Right Shift (to activate 'pause').

In many cases the purpose of a Null value is to serve for a data value that was not present in a previous version of your application.

So say you have an xml file from your application "ReportMaster" version 1.

Now in ReportMaster version 2 a some more attributes have been added that may or not be defined.

If you use the 'no tag means null' representation you get automatic backward compatibility for reading your ReportMaster 1 xml file.

You can use CollectionUtils from apache commons.

$('#checkbox_id').val();
$('#checkbox_id').is(":checked");
$('#checkbox_id:checked').val();

select substring( field, 1, 5 ) from sometable

You're trying to update the record (which to me means "change a value on an existing record and save it back"). So you need to retrieve the object, make a change, and save it.

using (var db = new MyContextDB())
{
    var result = db.Books.SingleOrDefault(b => b.BookNumber == bookNumber);
    if (result != null)
    {
        result.SomeValue = "Some new value";
        db.SaveChanges();
    }
}

not really eleganter, but a bit shorter would be

function to_tuple(x):
   y = 60*60*1000
   h = x/y
   m = (x-(h*y))/(y/60)
   s = (x-(h*y)-(m*(y/60)))/1000
   mi = x-(h*y)-(m*(y/60))-(s*1000)

   return (h,m,s,mi)

You are passing pointers (Complex*) when your function takes references (const Complex&). A reference and a pointer are entirely different things. When a function expects a reference argument, you need to pass it the object directly. The reference only means that the object is not copied.

To get an object to pass to your function, you would need to dereference your pointers:

Complex::distanta(*firstComplexNumber, *secondComplexNumber);

Or get your function to take pointer arguments.

However, I wouldn't really suggest either of the above solutions. Since you don't need dynamic allocation here (and you are leaking memory because you don't delete what you have newed), you're better off not using pointers in the first place:

Complex firstComplexNumber(81, 93);
Complex secondComplexNumber(31, 19);
Complex::distanta(firstComplexNumber, secondComplexNumber);

I'm reposting my answer from here because I saw it also fits in here. It allows removing multiple values or removing only duplicates of these values and returns either a new list or modifies the given list in place.

def removed(items, original_list, only_duplicates=False, inplace=False):
    """By default removes given items from original_list and returns
    a new list. Optionally only removes duplicates of `items` or modifies
    given list in place.
    """
    if not hasattr(items, '__iter__') or isinstance(items, str):
        items = [items]

    if only_duplicates:
        result = []
        for item in original_list:
            if item not in items or item not in result:
                result.append(item)
    else:
        result = [item for item in original_list if item not in items]

    if inplace:
        original_list[:] = result
    else:
        return result

Docstring extension:

"""
Examples:
---------

    >>>li1 = [1, 2, 3, 4, 4, 5, 5]
    >>>removed(4, li1)
       [1, 2, 3, 5, 5]
    >>>removed((4,5), li1)
       [1, 2, 3]
    >>>removed((4,5), li1, only_duplicates=True)
       [1, 2, 3, 4, 5]

    # remove all duplicates by passing original_list also to `items`.:
    >>>removed(li1, li1, only_duplicates=True)
      [1, 2, 3, 4, 5]

    # inplace:
    >>>removed((4,5), li1, only_duplicates=True, inplace=True)
    >>>li1
        [1, 2, 3, 4, 5]

    >>>li2 =['abc', 'def', 'def', 'ghi', 'ghi']
    >>>removed(('def', 'ghi'), li2, only_duplicates=True, inplace=True)
    >>>li2
        ['abc', 'def', 'ghi']
"""

You should be clear about what you really want to do, modify an existing list, or make a new list with the specific items missing. It's important to make that distinction in case you have a second reference pointing to the existing list. If you have, for example...

li1 = [1, 2, 3, 4, 4, 5, 5]
li2 = li1
# then rebind li1 to the new list without the value 4
li1 = removed(4, li1)
# you end up with two separate lists where li2 is still pointing to the 
# original
li2
# [1, 2, 3, 4, 4, 5, 5]
li1
# [1, 2, 3, 5, 5]

This may or may not be the behaviour you want.

On newer versions of yum, this information is stored in the "yumdb" when the package is installed. This is the only 100% accurate way to get the information, and you can use:

yumdb search from_repo repoid

(or repoquery and grep -- don't grep yum output). However the command "find-repos-of-install" was part of yum-utils for a while which did the best guess without that information:

http://james.fedorapeople.org/yum/commands/find-repos-of-install.py

As floyd said, a lot of repos. include a unique "dist" tag in their release, and you can look for that ... however from what you said, I guess that isn't the case for you?

class Gift
  def initialize
    @name = "book"
    @price = 15.95
  end
end

gift = Gift.new
hash = {}
gift.instance_variables.each {|var| hash[var.to_s.delete("@")] = gift.instance_variable_get(var) }
p hash # => {"name"=>"book", "price"=>15.95}

Alternatively with each_with_object:

gift = Gift.new
hash = gift.instance_variables.each_with_object({}) { |var, hash| hash[var.to_s.delete("@")] = gift.instance_variable_get(var) }
p hash # => {"name"=>"book", "price"=>15.95}

The following steps fix the problem for VS 2015 and VS 2017:

Close VS.

Navigate to the folder of the solution and delete the hidden .vs folder.

open VS.

Hit F5 and IIS Express should load as normal, allowing you to debug.

Kotlin Code for accessing toolbar OptionsMenu items programmatically & change the text/icon ,..:

1-We have our menu item in menu items file like: menu.xml, sample code for this:

 <?xml version="1.0" encoding="utf-8"?> 
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto">
<item android:id="@+id/balance"
      android:title="0"
      android:orderInCategory="100"
      app:showAsAction="always" />
 </menu>

2- Define a variable for accessing menu object in class :

var menu: Menu? = null

3- initial it in onCreateOptionsMenu :

override fun onCreateOptionsMenu(menu: Menu): Boolean {
    // Inflate the menu; this adds items to the action bar if it is present.
    menuInflater.inflate(R.menu.main, menu)
    this.menu = menu
    return true
}

4- Access the menu items inside your code or fun :

private fun initialBalanceMenuItemOnToolbar() {
var menuItemBalance = menu?.findItem(R.id.balance)
    menuItemBalance?.title = Balance?.toString() ?: 0.toString()
    // for change icon : menuWalletBalance?.icon
}

The tomcat manual says:

Copy the web application archive file into directory $CATALINA_HOME/webapps/. When Tomcat is started, it will automatically expand the web application archive file into its unpacked form, and execute the application that way.

I have searched the best and the simplest answer to make 9-patch image. Now to make the 9 patch image is the easiest task.

From https://romannurik.github.io/AndroidAssetStudio/index.html you can make a 9-patch image for all the resolutions - XHDPI,HDPI,MDPI,LDPI in just one click.

Try pass array to vector:

int arr[] = {2,5,8,11,14};
std::vector<int> TestVector(arr, arr+5);

You could always call std::vector::assign to assign array to vector, call std::vector::insert to add multiple arrays.

If you use C++11, you can try:

std::vector<int> v{2,5,8,11,14};

Or

 std::vector<int> v = {2,5,8,11,14};

I found a solution for my problem while writing my question !

Going into my remote session i tried two key combinations, and it solved the problem on my Desktop : Alt+Enter and Ctrl+Enter (i don't know which one solved the problem though)

I tried to reproduce the problem, but i couldn't... but i'm almost sure it's one of the key combinations described in the question above (since i experienced this problem several times)

So it seems the problem comes from the use of RDP (windows7 and 8)

Update 2017: Problem occurs on Windows 10 aswell.

Try CSS:

<h2 style="color:#069">Process Report</h2>

If you have more than one h2 tags which should have the same color add a style tag to the head tag like this:

<style type="text/css">
h2 {
    color:#069;
}
</style>

This example made everything clear for me:
As you can see setSoTimeout prevent the program to hang! It wait for SO_TIMEOUT time! if it does not get any signal it throw exception! It means that time expired!

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;

public class SocketTest extends Thread {
  private ServerSocket serverSocket;

  public SocketTest() throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);
  }

  public void run() {
    while (true) {
      try {
        System.out.println("Waiting for client on port " + serverSocket.getLocalPort() + "...");
        Socket client = serverSocket.accept();

        System.out.println("Just connected to " + client.getRemoteSocketAddress());
        client.close();
      } catch (SocketTimeoutException s) {
        System.out.println("Socket timed out!");
        break;
      } catch (IOException e) {
        e.printStackTrace();
        break;
      }
    }
  }

  public static void main(String[] args) {
    try {
      Thread t = new SocketTest();
      t.start();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}

Change the "MSBuild project build output verbosity" to "Detailed" or above. To do this, follow these steps:

1. Bring up the Options dialog (Tools -> Options...).
2. In the left-hand tree, select the Projects and Solutions node, and then select Build and Run.
   • Note: if this node doesn't show up, make sure that the checkbox at the bottom of the dialog Show all settings is checked.

3. In the tools/options page that appears, set the MSBuild project build output verbosity level to the appropriate setting depending on your version:

   • Diagnostics when on VS2012, VS2013 or VS2015 (the message in these versions says you should use "Detailed", but this is plain wrong, you should use "Diagnostics")
   • Detailed when you're on VS2010
   • Normal will suffice in VS2008 or older.
4. Build the project and look in the output window.

Check out the MSBuild messages. The ResolveAssemblyReferences task, which is the task from which MSB3247 originates, should help you debug this particular issue.

My specific case was an incorrect reference to SqlServerCe. See below. I had two projects referencing two different versions of SqlServerCe. I went to the project with the older version, removed the reference, then added the correct reference.

Target ResolveAssemblyReferences:
    Consider app.config remapping of assembly "System.Data.SqlServerCe, ..." 
        from Version "3.5.1.0" [H:\...\Debug\System.Data.SqlServerCe.dll] 
        to Version "9.0.242.0" [C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PublicAssemblies\System.Data.SqlServerCe.dll]
        to solve conflict and get rid of warning.
    C:\WINDOWS\Microsoft.NET\Framework\v3.5\Microsoft.Common.targets : 
        warning MSB3247: Found conflicts between different versions of the same dependent assembly.

You do not have to open each assembly to determine the versions of referenced assemblies.

• You can check the Properties of each Reference.
• Open the project properties and check the versions of the References section.
• Open the projects with a Text Editor.
• Use .Net Reflector.

For my case increasing the memory using -Xmx option was the solution.

I had a 10g file read in java and each time I got the same error. This happened when the value in the RES column in top command reached to the value set in -Xmx option. Then by increasing the memory using -Xmx option everything went fine.

There was another point as well. When I set JAVA_OPTS or CATALINA_OPTS in my user account and increased the amount of memory again I got the same error. Then, I printed the value of those environment variables in my code which gave me different values than what I set. The reason was that Tomcat was the root for that process and then as I was not a su-doer I asked the admin to increase the memory in catalina.sh in Tomcat.

After stripping all characters except '+' and digits from your input, this should do it:

^\+[1-9]{1}[0-9]{3,14}$

If you want to be more exact with the country codes see this question on List of phone number country codes

However, I would try to be not too strict with my validation. Users get very frustrated if they are told their valid numbers are not acceptable.

Be very careful: all of the answers on this page are implicitly taking the decision of where the binning starts - the left-hand edge of the left-most bin, if you like - out of the user's hands. If the user is combining any of these functions for binning data with his/her own decision about where binning starts (as is done on the blog which is linked to above) the functions above are all incorrect. With an arbitrary starting point for binning 'Min', the correct function is:

bin(x) = width*(floor((x-Min)/width)+0.5) + Min

You can see why this is correct sequentially (it helps to draw a few bins and a point somewhere in one of them). Subtract Min from your data point to see how far into the binning range it is. Then divide by binwidth so that you're effectively working in units of 'bins'. Then 'floor' the result to go to the left-hand edge of that bin, add 0.5 to go to the middle of the bin, multiply by the width so that you're no longer working in units of bins but in an absolute scale again, then finally add back on the Min offset you subtracted at the start.

Consider this function in action:

Min = 0.25 # where binning starts
Max = 2.25 # where binning ends
n = 2 # the number of bins
width = (Max-Min)/n # binwidth; evaluates to 1.0
bin(x) = width*(floor((x-Min)/width)+0.5) + Min

e.g. the value 1.1 truly falls in the left bin:

• this function correctly maps it to the centre of the left bin (0.75);
• Born2Smile's answer, bin(x)=width*floor(x/width), incorrectly maps it to 1;
• mas90's answer, bin(x)=width*floor(x/width) + binwidth/2.0, incorrectly maps it to 1.5.

Born2Smile's answer is only correct if the bin boundaries occur at (n+0.5)*binwidth (where n runs over integers). mas90's answer is only correct if the bin boundaries occur at n*binwidth.

try this. (I modified the example on the purpose of making it non trivial)

import operator
import numpy as np

n=10
a = list(range(n))
a1 = [1]*len(a)
an = np.array(a)

operator.add is almost more than two times faster

%timeit map(operator.add, a, a1)

than adding with numpy

%timeit an+1

Here is the simplest solution

select m_id,v_id,max(timestamp) from table group by m_id;

Group by m_id but get max of timestamp for each m_id.

Methods like sleep() and wait() of class Thread might throw an InterruptedException. This will happen if some other thread wanted to interrupt the thread that is waiting or sleeping.

Use \x Example from postgres manual:

    postgres=# \x
    postgres=# SELECT * FROM pg_stat_statements ORDER BY total_time DESC LIMIT 3;
    -[ RECORD 1 ]------------------------------------------------------------
    userid     | 10
    dbid       | 63781
    query      | UPDATE branches SET bbalance = bbalance + $1 WHERE bid = $2;
    calls      | 3000
    total_time | 20.716706
    rows       | 3000
    -[ RECORD 2 ]------------------------------------------------------------
    userid     | 10
    dbid       | 63781
    query      | UPDATE tellers SET tbalance = tbalance + $1 WHERE tid = $2;
    calls      | 3000
    total_time | 17.1107649999999
    rows       | 3000
    -[ RECORD 3 ]------------------------------------------------------------
    userid     | 10
    dbid       | 63781
    query      | UPDATE accounts SET abalance = abalance + $1 WHERE aid = $2;
    calls      | 3000
    total_time | 0.645601
    rows       | 3000

1 - right click the highlight whose color you want to change

2 - select "Properties" in the popup menu

3 - choose the new color (as coobird suggested)

This solution is easy because you dont have to search for the highlight by its name ("Ocurrence" or "Write Ocurrence" etc), just right click and the appropriate window is shown.

Set Arg = WScript.Arguments
set WshShell = createObject("Wscript.Shell")
Set Inp = WScript.Stdin
Set Outp = Wscript.Stdout
    Set rs = CreateObject("ADODB.Recordset")
    With rs
        .Fields.Append "LineNumber", 4 

        .Fields.Append "Txt", 201, 5000 
        .Open
        LineCount = 0
        Do Until Inp.AtEndOfStream
            LineCount = LineCount + 1
            .AddNew
            .Fields("LineNumber").value = LineCount
            .Fields("Txt").value = Inp.readline
            .UpDate
        Loop

        .Sort = "LineNumber ASC"

        If LCase(Arg(1)) = "t" then
            If LCase(Arg(2)) = "i" then
                .filter = "LineNumber < " & LCase(Arg(3)) + 1
            ElseIf LCase(Arg(2)) = "x" then
                .filter = "LineNumber > " & LCase(Arg(3))
            End If
        ElseIf LCase(Arg(1)) = "b" then
            If LCase(Arg(2)) = "i" then
                .filter = "LineNumber > " & LineCount - LCase(Arg(3))
            ElseIf LCase(Arg(2)) = "x" then
                .filter = "LineNumber < " & LineCount - LCase(Arg(3)) + 1
            End If
        End If

        Do While not .EOF
            Outp.writeline .Fields("Txt").Value

            .MoveNext
        Loop
    End With

Cut

filter cut {t|b} {i|x} NumOfLines

Cuts the number of lines from the top or bottom of file.

t - top of the file
b - bottom of the file
i - include n lines
x - exclude n lines

Example

cscript /nologo filter.vbs cut t i 5 < "%systemroot%\win.ini"

Another way This outputs lines 5001+, adapt for your use. This uses almost no memory.

Do Until Inp.AtEndOfStream
         Count = Count + 1
         If count > 5000 then
            OutP.WriteLine Inp.Readline
         End If
Loop

Try replacing apt-get with yum as Amazon Linux based AMI uses the yum command instead of apt-get.

I'm late to the party but... I've had a similar situation come up and I discovered padding-right (and bottom, top, left too, of course). From the way I understand its definition, it puts a padding area inside the inner div so there's no need to add a negative margin on the parent as you did with a margin.

padding-right: 10px;

This did the trick for me!

In iOS 9.3.1 and up: Settings > General > Device Management

You need to declare a custom eventhandler.

public class MyEventArgs: EventArgs
{
  ...
}

public delegate void MyEventHandler(object sender, MyEventArgs e);

public class MyControl: UserControl
{
  public event MyEventHandler MyEvent;
   ...
}

This will prevent all logging from a third library which it used as decribed here https://docs.python.org/3/howto/logging.html#configuring-logging-for-a-library

logging.getLogger('somelogger').addHandler(logging.NullHandler())

Reading input from keyboard is analogous to downloading files from the internet, the java io system opens connections with the source of data to be read using InputStream or Reader, you have to handle a situation where the connection can break by using IOExceptions

If you want to know exactly what it means to work with InputStreams and BufferedReader this video shows it

1. Save the current height:

   var curHeight = $('#first').height();
   

2. Temporarily switch the height to auto:

   $('#first').css('height', 'auto');
   

3. Get the auto height:

   var autoHeight = $('#first').height();
   

4. Switch back to curHeight and animate to autoHeight:

   $('#first').height(curHeight).animate({height: autoHeight}, 1000);
   

And together:

var el = $('#first'),
    curHeight = el.height(),
    autoHeight = el.css('height', 'auto').height();
el.height(curHeight).animate({height: autoHeight}, 1000);

Bro, moment.js is awesome for this: The diff method is what you want: http://momentjs.com/docs/#/displaying/difference/

The below function return array of years from the year to the current year.

const getYears = (from = 2017) => {_x000D_
  const diff = moment(new Date()).diff(new Date(`01/01/${from}`), 'years') ;_x000D_
  return [...Array(diff >= 0 ? diff + 1 : 0).keys()].map((num) => {_x000D_
    return from + num;_x000D_
  });_x000D_
}_x000D_
_x000D_
console.log(getYears(2016));

<script src="https://momentjs.com/downloads/moment.js"></script>

Use the menu selection Navigate -> Test, or Ctrl+Shift+T (Shift+?+T on Mac). This will go to the existing test class, or offer to generate it for you through a little wizard.

No words just running code

// Thread class
public class MyThread extends Thread {

    String result = null;

    public MyThread(String name) {
        super(name);
    }

    public void run() {
        for (int i = 0; i < 1000; i++) {

            System.out.println("Hello from " + this.getName());
        }
        result = "Bye from " + this.getName();
    }
}

Main Class

public class JoinRND {
    public static void main(String[] args) {

        System.out.println("Show time");
        // Creating threads
        MyThread m1 = new MyThread("Thread M1");
        MyThread m2 = new MyThread("Thread M2");
        MyThread m3 = new MyThread("Thread M3");

        // Starting out Threads
        m1.start();
        m2.start();
        m3.start();
        // Just checking current value of thread class variable
        System.out.println("M1 before: " + m1.result);
        System.out.println("M2 before: " + m2.result);
        System.out.println("M3 before: " + m3.result);
        // After starting all threads main is performing its own logic in
        // parallel to other threads
        for (int i = 0; i < 1000; i++) {

            System.out.println("Hello from Main");
        }

        try {

            System.out
                    .println("Main is waiting for other threads to get there task completed");
            m1.join();
            m2.join();
            m3.join();
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        System.out.println("M1 after" + m1.result);
        System.out.println("M2 after" + m2.result);
        System.out.println("M3 after" + m3.result);

        System.out.println("Show over");
    }
}

Simple. On your code first, set the type of DateTime to DateTime?. So you can work with nullable DateTime type in database. Entity example:

public class Alarme
    {
        [Key]
        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
        public int Id { get; set; }

        public DateTime? DataDisparado { get; set; }//.This allow you to work with nullable datetime in database.
        public DateTime? DataResolvido { get; set; }//.This allow you to work with nullable datetime in database.
        public long Latencia { get; set; }

        public bool Resolvido { get; set; }

        public int SensorId { get; set; }
        [ForeignKey("SensorId")]
        public virtual Sensor Sensor { get; set; }
    }

No need to activate or selection sheets or cells if you're using VBA. You can access it all directly. The code:

Dim rng As Range
For Each rng In Sheets("Feuil2").Range("A1:A333")
    Sheets("Classeur2.csv").Cells(rng.Value, rng.Offset(, 1).Value) = "1"
Next rng

is producing the same result as Joe's code.

If you need to switch sheets for some reasons, use Application.ScreenUpdating = False at the beginning of your macro (and Application.ScreenUpdating=True at the end). This will remove the screenflickering - and speed up the execution.

You can use Postman a plugin for chrome. It gives the ability to choose the authentication type you need for each of the requests. In that menu you can configure user and password. Postman will automatically translate the config to a authentication header that will be sent with your request.

Install distribute by downloading and running distribute_setup.py. This will make easy_install available, and from there you can install pip with easy_install pip. Then you can run pip install CAGE. Using pip to install things is a lot easier than messing with manually running setup.py, because pip can do things like:

automatically resolve dependencies
show you a list of all installed packages and their versions
install a set of specified packages from a requirements.txt
upgrade and uninstall packages
work with virtualenv

If you're on Windows, the one downside of pip occurs when there are C library dependencies, as pip will want a C toolchain installed so it can compile things. If that is the case, then there are two options. If there are precompiled binaries on PyPI, then just run easy_install package instead; easy_install knows how to use binary packages. You can also check Christoph Gohlke's site for executable installers of many binary packages. These can also be installed by easy_install if you want to use them with a virtualenv (just point it to the path of the .exe) or you can click and run if you don't care about virtualenv.

The main point is that no matter what route you choose to install packages, at no point are you ever moving around files by hand. You need to get out of the mindset of "I extracted this archive, where do I put these .py files?" That's not how it works. You're either running pip, running easy_install, running setup.py, clicking on an installer package, or using your distribution's installer. At no point are you ever doing anything by hand with the files directly.

You can change layout visibility just in the same way as for regular view. Use setVisibility(View.GONE) etc. All layouts are just Views, they have View as their parent.

The problem here was a typo error in the password used, which was not easily identified due to the characters / letters used in the password.

You have to add this to your pg_hba.conf and restart your PostgreSQL.

host all all 192.168.56.1/24 md5

This works with VirtualBox and host-only adapter enabled. If you don't use Virtualbox you have to replace the IP address.

<!DOCTYPE html>
<html>
<head>
<title>set caret position</title>
<script type="application/javascript">
//<![CDATA[
window.onload = function ()
{
 setCaret(document.getElementById('input1'), 13, 13)
}

function setCaret(el, st, end)
{
 if (el.setSelectionRange)
 {
  el.focus();
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  {
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   range.collapse(true);
   range.moveEnd('character', end);
   range.moveStart('character', st);
   range.select();
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<textarea id="input1" name="input1" rows="10" cols="30">Happy kittens dancing</textarea>

<p>&nbsp;</p>

</body>
</html>

.model small
.stack 100h
.code 
Main proc
Mov cx , 30 ; //that number control the loop 30 means the loop will 
;excite 30 time 
Ioopfront:
Mov ah , 1
Int 21h 
Loop loopfront; 

this cod will take 30 character

One Liner (pure Java)

list.toString().replace(", ", ",").replaceAll("[\\[.\\]]", "");

I required a thread to fire once every minute (see question here) and I've now used a DispatchTimer based on the answers I received.

The answers provide some references which you might find useful.

If on click of the button, you're opening a new fragment, just add android:clickable="true" to the root view of the new fragment being opened.

You shouldn't raise the warning, you should be using warnings module. By raising it you're generating error, rather than warning.

I find exporting the packages in string format only is more portable than exporting the whole conda environment. As the previous answer already suggested:

$ conda list -e > requirements.txt

However, this requirements.txt contains build numbers which are not portable between operating systems, e.g. between Mac and Ubuntu. In conda env export we have the option --no-builds but not with conda list -e, so we can remove the build number by issuing the following command:

$ sed -i -E "s/^(.*\=.*)(\=.*)/\1/" requirements.txt 

And recreate the environment on another computer:

conda create -n recreated_env --file requirements.txt 

There are a thousand and one ways to do it. Here's one using dc (a reverse-polish desk calculator which supports unlimited precision arithmetic):

dc <<<"$num1 $num2 + p"

But if that's too bash-y for you (or portability matters) you could say

echo $num1 $num2 + p | dc

But maybe you're one of those people who thinks RPN is icky and weird; don't worry! bc is here for you:

bc <<< "$num1 + $num2"
echo $num1 + $num2 | bc

That said, there are some unrelated improvements you could be making to your script:

#!/bin/bash

num=0
metab=0

for ((i=1; i<=2; i++)); do
    for j in output-$i-* ; do # 'for' can glob directly, no need to ls
            echo "$j"

             # 'grep' can read files, no need to use 'cat'
            metab=$(grep EndBuffer "$j" | awk '{sum+=$2} END { print sum/120}')
            num=$(( $num + $metab ))
    done
    echo "$num"
done

As described in Bash FAQ 022, Bash does not natively support floating point numbers. If you need to sum floating point numbers the use of an external tool (like bc or dc) is required.

In this case the solution would be

num=$(dc <<<"$num $metab + p")

To add accumulate possibly-floating-point numbers into num.

I've faced the exactly same problem but I've fixed it with another approache.

Using Ubuntu 18.04, first disable systemd-resolved service.

sudo systemctl disable systemd-resolved.service

Stop the service

sudo systemctl stop systemd-resolved.service

Then, remove the link to /run/systemd/resolve/stub-resolv.conf in /etc/resolv.conf

sudo rm /etc/resolv.conf

Add a manually created resolv.conf in /etc/

sudo vim /etc/resolv.conf

Add your prefered DNS server there

nameserver 208.67.222.222

I've tested this with success.

The code marked @Before is executed before each test, while @BeforeClass runs once before the entire test fixture. If your test class has ten tests, @Before code will be executed ten times, but @BeforeClass will be executed only once.

In general, you use @BeforeClass when multiple tests need to share the same computationally expensive setup code. Establishing a database connection falls into this category. You can move code from @BeforeClass into @Before, but your test run may take longer. Note that the code marked @BeforeClass is run as static initializer, therefore it will run before the class instance of your test fixture is created.

In JUnit 5, the tags @BeforeEach and @BeforeAll are the equivalents of @Before and @BeforeClass in JUnit 4. Their names are a bit more indicative of when they run, loosely interpreted: 'before each tests' and 'once before all tests'.