Only tested in Chrome 44.

Example: http://codepen.io/hugovk/pen/OVqBoq

HTML:

<div>
<img src="http://lorempixel.com/1600/900/">
</div>

CSS:

<style type="text/css">
img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    max-width: 100%;
    max-height: 100%;
}
</style>

The traditional way to flag a method so that it will appear in Interface Builder, and you can drag a connection to it, has been to make the method return type IBAction. However, if you make your method void, instead (IBAction is #define'd to be void), and provide an (id) argument, the method is still visible. This provides extra flexibility, al

All 3 of these are visible from Interface Builder:

-(void) someMethod1:(id) sender; 
-(IBAction) someMethod2; 
-(IBAction) someMethod3:(id) sender;

See Apple's Interface Builder User Guide for details, particularly the section entitled Xcode Integration.

Use XPath and document.evaluate(), and make sure to use text() and not . for the contains() argument, or else you will have the entire HTML, or outermost div element matched.

var headings = document.evaluate("//h1[contains(text(), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

or ignore leading and trailing whitespace

var headings = document.evaluate("//h1[contains(normalize-space(text()), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

or match all tag types (div, h1, p, etc.)

var headings = document.evaluate("//*[contains(text(), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

Then iterate

let thisHeading;
while(thisHeading = headings.iterateNext()){
    // thisHeading contains matched node
}

//How decodeURIComponent Works

function proURIDecoder(val)
{
  val=val.replace(/\+/g, '%20');
  var str=val.split("%");
  var cval=str[0];
  for (var i=1;i<str.length;i++)
  {
    cval+=String.fromCharCode(parseInt(str[i].substring(0,2),16))+str[i].substring(2);
  }

  return cval;
}

document.write(proURIDecoder(window.location.href));

You can use sudo gem install -n /usr/local/bin cocoapods

This works for me.

Simplest way I could think of: add a class.

Simply add a class (on any element) and check inside the interval if it's there. This is more reliable, customisable and cross-language than any other way, I believe.

var i = 0;_x000D_
this.setInterval(function() {_x000D_
  if(!$('#counter').hasClass('pauseInterval')) { //only run if it hasn't got this class 'pauseInterval'_x000D_
    console.log('Counting...');_x000D_
    $('#counter').html(i++); //just for explaining and showing_x000D_
  } else {_x000D_
    console.log('Stopped counting');_x000D_
  }_x000D_
}, 500);_x000D_
_x000D_
/* In this example, I'm adding a class on mouseover and remove it again on mouseleave. You can of course do pretty much whatever you like */_x000D_
$('#counter').hover(function() { //mouse enter_x000D_
    $(this).addClass('pauseInterval');_x000D_
  },function() { //mouse leave_x000D_
    $(this).removeClass('pauseInterval');_x000D_
  }_x000D_
);_x000D_
_x000D_
/* Other example */_x000D_
$('#pauseInterval').click(function() {_x000D_
  $('#counter').toggleClass('pauseInterval');_x000D_
});

body {_x000D_
  background-color: #eee;_x000D_
  font-family: Calibri, Arial, sans-serif;_x000D_
}_x000D_
#counter {_x000D_
  width: 50%;_x000D_
  background: #ddd;_x000D_
  border: 2px solid #009afd;_x000D_
  border-radius: 5px;_x000D_
  padding: 5px;_x000D_
  text-align: center;_x000D_
  transition: .3s;_x000D_
  margin: 0 auto;_x000D_
}_x000D_
#counter.pauseInterval {_x000D_
  border-color: red;  _x000D_
}

<!-- you'll need jQuery for this. If you really want a vanilla version, ask -->_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<p id="counter">&nbsp;</p>_x000D_
<button id="pauseInterval">Pause/unpause</button></p>

In the book written by Charles Petzold titled "Code" he says there are 6 gates. There is the AND logical gate, the OR gate, the NOR gate, the NAND gate, and the XOR gate. He also mentions the 6th gate briefly calling it the "coincidence gate" and implies it's not used very often. He says it has the opposite output of a XOR gate because a XOR gate has the output of "false" when it has two true or two false sides of the equation and the only way for a XOR gate to have its output be true is for one of the sides of the equation to be true and the other to be false, it doesn't matter which. The coincidence is the exact opposite of this because with the coincidence gate if one is true and the other is false (doesn't matter which is which) then it will have its output be "false" in both those cases. And the way for a coincidence gate to have its output be "true" is for both sides to be either false or true. If both are false the coincidence gate will evaluate as true. If both are true then the coincidence gate will also output "true" in that case as well.

So in the cases where the XOR gate outputs "false", the coincidence gate will output "true". And in the cases where the XOR gate will output "true", the coincidence gate will output "false".

You're missing the necessary class definition; typically caused by required JAR not being in classpath.

From J2SE API:

public class NoClassDefFoundError extends LinkageError

Thrown if the Java Virtual Machine or a ClassLoader instance tries to load in the definition of a class (as part of a normal method call or as part of creating a new instance using the new expression) and no definition of the class could be found.

The searched-for class definition existed when the currently executing class was compiled, but the definition can no longer be found.

• You can customize every short cut operation according to your habbit.

Just go to Tools > Options > Environment > Keyboard > Find the action you want to set key board short-cut and change according to keyboard habbit.

One thing that should be considered is licensing.

Notepad++ is free (as in speech and as in beer) for perpetual use, released under the GPL license, whereas Sublime Text 2 requires a license.

To quote the Sublime Text 2 website:

..a license must be purchased for continued use. There is currently no enforced time limit for the evaluation.

The same is now true of Sublime Text 3, and a paid upgrade will be needed for future versions.

Upgrade Policy A license is valid for Sublime Text 3, and includes all point updates, as well as access to prior versions (e.g., Sublime Text 2). Future major versions, such as Sublime Text 4, will be a paid upgrade.

This licensing requirement is still correct as of Dec 2019.

With classes you get inheritance and are passed by reference, structs do not have inheritance and are passed by value.

There are great WWDC sessions on Swift, this specific question is answered in close detail in one of them. Make sure you watch those, as it will get you up to speed much more quickly then the Language guide or the iBook.

Indeed, it is possible to have the list of tables via SQL queries.it is possible to do that also via tools that allow the generation of data dictionaries, such as ERWIN, Toad Data Modeler or ERBuilder. With these tools, in addition to table names, you will have fields, their types, objects like(triggers, sequences, domain, views...)

Below steps to follow to generate your tables definition:

1. You have to reverse engineer your database
   • In Toad data modeler: Menu -> File -> reverse engineer -> reverse engineering wizard
   • In ERBuilder data modeler: Menu -> File -> reverse engineer

Your database will be displayed in the software as an Entity Relationship diagram.

2. Generate your data dictionary that will contain your Tables definition
   • In Toad data modeler: Menu -> Model -> Generate report -> Run
   • In ERBuilder data modeler: Menu -> Tool -> generate model documentation

If you are using Jackson do a lot of JsonNode building in code, you may be interesting in the following set of utilities. The benefit of using them is that they support a more natural chaining style that better shows the structure of the JSON under construction.

Here is an example usage:

import static JsonNodeBuilders.array;
import static JsonNodeBuilders.object;

...

val request = object("x", "1").with("y", array(object("z", "2"))).end();

Which is equivalent to the following JSON:

{"x":"1", "y": [{"z": "2"}]}

Here are the classes:

import static lombok.AccessLevel.PRIVATE;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import com.fasterxml.jackson.databind.node.ObjectNode;

import lombok.NoArgsConstructor;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import lombok.val;

/**
 * Convenience {@link JsonNode} builder.
 */
@NoArgsConstructor(access = PRIVATE)
public final class JsonNodeBuilders {

  /**
   * Factory methods for an {@link ObjectNode} builder.
   */

  public static ObjectNodeBuilder object() {
    return object(JsonNodeFactory.instance);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, boolean v1) {
    return object().with(k1, v1);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, int v1) {
    return object().with(k1, v1);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, float v1) {
    return object().with(k1, v1);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, String v1) {
    return object().with(k1, v1);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, String v1, @NonNull String k2, String v2) {
    return object(k1, v1).with(k2, v2);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, String v1, @NonNull String k2, String v2,
      @NonNull String k3, String v3) {
    return object(k1, v1, k2, v2).with(k3, v3);
  }

  public static ObjectNodeBuilder object(@NonNull String k1, JsonNodeBuilder<?> builder) {
    return object().with(k1, builder);
  }

  public static ObjectNodeBuilder object(JsonNodeFactory factory) {
    return new ObjectNodeBuilder(factory);
  }

  /**
   * Factory methods for an {@link ArrayNode} builder.
   */

  public static ArrayNodeBuilder array() {
    return array(JsonNodeFactory.instance);
  }

  public static ArrayNodeBuilder array(@NonNull boolean... values) {
    return array().with(values);
  }

  public static ArrayNodeBuilder array(@NonNull int... values) {
    return array().with(values);
  }

  public static ArrayNodeBuilder array(@NonNull String... values) {
    return array().with(values);
  }

  public static ArrayNodeBuilder array(@NonNull JsonNodeBuilder<?>... builders) {
    return array().with(builders);
  }

  public static ArrayNodeBuilder array(JsonNodeFactory factory) {
    return new ArrayNodeBuilder(factory);
  }

  public interface JsonNodeBuilder<T extends JsonNode> {

    /**
     * Construct and return the {@link JsonNode} instance.
     */
    T end();

  }

  @RequiredArgsConstructor
  private static abstract class AbstractNodeBuilder<T extends JsonNode> implements JsonNodeBuilder<T> {

    /**
     * The source of values.
     */
    @NonNull
    protected final JsonNodeFactory factory;

    /**
     * The value under construction.
     */
    @NonNull
    protected final T node;

    /**
     * Returns a valid JSON string, so long as {@code POJONode}s not used.
     */
    @Override
    public String toString() {
      return node.toString();
    }

  }

  public final static class ObjectNodeBuilder extends AbstractNodeBuilder<ObjectNode> {

    private ObjectNodeBuilder(JsonNodeFactory factory) {
      super(factory, factory.objectNode());
    }

    public ObjectNodeBuilder withNull(@NonNull String field) {
      return with(field, factory.nullNode());
    }

    public ObjectNodeBuilder with(@NonNull String field, int value) {
      return with(field, factory.numberNode(value));
    }

    public ObjectNodeBuilder with(@NonNull String field, float value) {
      return with(field, factory.numberNode(value));
    }

    public ObjectNodeBuilder with(@NonNull String field, boolean value) {
      return with(field, factory.booleanNode(value));
    }

    public ObjectNodeBuilder with(@NonNull String field, String value) {
      return with(field, factory.textNode(value));
    }

    public ObjectNodeBuilder with(@NonNull String field, JsonNode value) {
      node.set(field, value);
      return this;
    }

    public ObjectNodeBuilder with(@NonNull String field, @NonNull JsonNodeBuilder<?> builder) {
      return with(field, builder.end());
    }

    public ObjectNodeBuilder withPOJO(@NonNull String field, @NonNull Object pojo) {
      return with(field, factory.pojoNode(pojo));
    }

    @Override
    public ObjectNode end() {
      return node;
    }

  }

  public final static class ArrayNodeBuilder extends AbstractNodeBuilder<ArrayNode> {

    private ArrayNodeBuilder(JsonNodeFactory factory) {
      super(factory, factory.arrayNode());
    }

    public ArrayNodeBuilder with(boolean value) {
      node.add(value);
      return this;
    }

    public ArrayNodeBuilder with(@NonNull boolean... values) {
      for (val value : values)
        with(value);
      return this;
    }

    public ArrayNodeBuilder with(int value) {
      node.add(value);
      return this;
    }

    public ArrayNodeBuilder with(@NonNull int... values) {
      for (val value : values)
        with(value);
      return this;
    }

    public ArrayNodeBuilder with(float value) {
      node.add(value);
      return this;
    }

    public ArrayNodeBuilder with(String value) {
      node.add(value);
      return this;
    }

    public ArrayNodeBuilder with(@NonNull String... values) {
      for (val value : values)
        with(value);
      return this;
    }

    public ArrayNodeBuilder with(@NonNull Iterable<String> values) {
      for (val value : values)
        with(value);
      return this;
    }

    public ArrayNodeBuilder with(JsonNode value) {
      node.add(value);
      return this;
    }

    public ArrayNodeBuilder with(@NonNull JsonNode... values) {
      for (val value : values)
        with(value);
      return this;
    }

    public ArrayNodeBuilder with(JsonNodeBuilder<?> value) {
      return with(value.end());
    }

    public ArrayNodeBuilder with(@NonNull JsonNodeBuilder<?>... builders) {
      for (val builder : builders)
        with(builder);
      return this;
    }

    @Override
    public ArrayNode end() {
      return node;
    }

  }

}

Note that the implementation uses Lombok, but you can easily desugar it to fill in the Java boilerplate.

You can use this:

columnsTitles = ['onething', 'secondthing', 'otherthing']

frame = frame.reindex(columns=columnsTitles)

You should call srand() before calling rand to initialize the random number generator.

Either call it with a specific seed, and you will always get the same pseudo-random sequence

#include <stdlib.h>

int main ()
{
  srand ( 123 );
  int random_number = rand();
  return 0;
}

or call it with a changing sources, ie the time function

#include <stdlib.h>
#include <time.h>

int main ()
{
  srand ( time(NULL) );
  int random_number = rand();
  return 0;
}

In response to Moon's Comment rand() generates a random number with an equal probability between 0 and RAND_MAX (a macro pre-defined in stdlib.h)

You can then map this value to a smaller range, e.g.

int random_value = rand(); //between 0 and RAND_MAX

//you can mod the result
int N = 33;
int rand_capped = random_value % N;  //between 0 and 32
int S = 50;
int rand_range = rand_capped + S; //between 50 and 82

//you can convert it to a float
float unit_random = random_value / (float) RAND_MAX; //between 0 and 1 (floating point)

This might be sufficient for most uses, but its worth pointing out that in the first case using the mod operator introduces a slight bias if N does not divide evenly into RAND_MAX+1.

Random number generators are interesting and complex, it is widely said that the rand() generator in the C standard library is not a great quality random number generator, read (http://en.wikipedia.org/wiki/Random_number_generation for a definition of quality).

http://en.wikipedia.org/wiki/Mersenne_twister (source http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html ) is a popular high quality random number generator.

Also, I am not aware of arc4rand() or random() so I cannot comment.

Below is a fully functional example of what I believe you're trying to do (with a functional snippet).

Explanation

Based on your question, you seem to be modifying 1 property in state for all of your elements. That's why when you click on one, all of them are being changed.

In particular, notice that the state tracks an index of which element is active. When MyClickable is clicked, it tells the Container its index, Container updates the state, and subsequently the isActive property of the appropriate MyClickables.

Example

class Container extends React.Component {_x000D_
  state = {_x000D_
    activeIndex: null_x000D_
  }_x000D_
_x000D_
  handleClick = (index) => this.setState({ activeIndex: index })_x000D_
_x000D_
  render() {_x000D_
    return <div>_x000D_
      <MyClickable name="a" index={0} isActive={ this.state.activeIndex===0 } onClick={ this.handleClick } />_x000D_
      <MyClickable name="b" index={1} isActive={ this.state.activeIndex===1 } onClick={ this.handleClick }/>_x000D_
      <MyClickable name="c" index={2} isActive={ this.state.activeIndex===2 } onClick={ this.handleClick }/>_x000D_
    </div>_x000D_
  }_x000D_
}_x000D_
_x000D_
class MyClickable extends React.Component {_x000D_
  handleClick = () => this.props.onClick(this.props.index)_x000D_
  _x000D_
  render() {_x000D_
    return <button_x000D_
      type='button'_x000D_
      className={_x000D_
        this.props.isActive ? 'active' : 'album'_x000D_
      }_x000D_
      onClick={ this.handleClick }_x000D_
    >_x000D_
      <span>{ this.props.name }</span>_x000D_
    </button>_x000D_
  }_x000D_
}_x000D_
_x000D_
ReactDOM.render(<Container />, document.getElementById('app'))

button {_x000D_
  display: block;_x000D_
  margin-bottom: 1em;_x000D_
}_x000D_
_x000D_
.album>span:after {_x000D_
  content: ' (an album)';_x000D_
}_x000D_
_x000D_
.active {_x000D_
  font-weight: bold;_x000D_
}_x000D_
_x000D_
.active>span:after {_x000D_
  content: ' ACTIVE';_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.6.1/react.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.6.1/react-dom.min.js"></script>_x000D_
<div id="app"></div>

Update: "Loops"

In response to a comment about a "loop" version, I believe the question is about rendering an array of MyClickable elements. We won't use a loop, but map, which is typical in React + JSX. The following should give you the same result as above, but it works with an array of elements.

// New render method for `Container`
render() {
  const clickables = [
    { name: "a" },
    { name: "b" },
    { name: "c" },
  ]

  return <div>
      { clickables.map(function(clickable, i) {
          return <MyClickable key={ clickable.name }
            name={ clickable.name }
            index={ i }
            isActive={ this.state.activeIndex === i }
            onClick={ this.handleClick }
          />
        } )
      }
  </div>
}

I found this thread when I was searching for an answer to the same question. While I realize that it's a late answer, I thought I'd contribute it in case it's useful to anyone else:

def find_dict_in_list(dicts, default=None, **kwargs):
    """Find first matching :obj:`dict` in :obj:`list`.

    :param list dicts: List of dictionaries.
    :param dict default: Optional. Default dictionary to return.
        Defaults to `None`.
    :param **kwargs: `key=value` pairs to match in :obj:`dict`.

    :returns: First matching :obj:`dict` from `dicts`.
    :rtype: dict

    """

    rval = default
    for d in dicts:
        is_found = False

        # Search for keys in dict.
        for k, v in kwargs.items():
            if d.get(k, None) == v:
                is_found = True

            else:
                is_found = False
                break

        if is_found:
            rval = d
            break

    return rval


if __name__ == '__main__':
    # Tests
    dicts = []
    keys = 'spam eggs shrubbery knight'.split()

    start = 0
    for _ in range(4):
        dct = {k: v for k, v in zip(keys, range(start, start+4))}
        dicts.append(dct)
        start += 4

    # Find each dict based on 'spam' key only.  
    for x in range(len(dicts)):
        spam = x*4
        assert find_dict_in_list(dicts, spam=spam) == dicts[x]

    # Find each dict based on 'spam' and 'shrubbery' keys.
    for x in range(len(dicts)):
        spam = x*4
        assert find_dict_in_list(dicts, spam=spam, shrubbery=spam+2) == dicts[x]

    # Search for one correct key, one incorrect key:
    for x in range(len(dicts)):
        spam = x*4
        assert find_dict_in_list(dicts, spam=spam, shrubbery=spam+1) is None

    # Search for non-existent dict.
    for x in range(len(dicts)):
        spam = x+100
        assert find_dict_in_list(dicts, spam=spam) is None

Suppose you want to give attributes to an instance which was previously not written in code. The setattr() does just that. It takes the instance of the class self and key and value to set.

class Example:
    def __init__(self, **kwargs):
        for key, value in kwargs.items():
            setattr(self, key, value)

You should have one listview in your mainlist.xml file with id as @android:id/list

<ListView
    android:id="@android:id/list"
    android:layout_height="wrap_content"
    android:layout_height="fill_parent"/>

Another non-paste answer:

x <- capture.output(cat(data, sep = ","))
x
[1] "GAD,AB"

Where

 data <- c("GAD", "AB")

    function load_tpl(selected=""){
        $("#load_tpl").empty();
        for(x in ds_tpl){
            $("#load_tpl").append('<li><a id="'+ds_tpl[x]+'" href="#" >'+ds_tpl[x]+'</a></li>');
        }
        $.each($("#load_tpl a"),function(){
            $(this).on("click",function(e){
                alert(e.target.id);
            });
        });
    }

If you are using the batch conversion, in the window click "options" in the "Batch conversion settings-output format" and tick the two boxes "save transparent color" (one under "PNG" and the other under "ICO").

It would appear that you should

• Create a struct MD5context and pass it to MD5Init to get it into a proper starting condition
• Call MD5Update with the context and your data
• Call MD5Final to get the resulting hash

These three functions and the structure definition make a nice abstract interface to the hash algorithm. I'm not sure why you were shown the core transform function in that header as you probably shouldn't interact with it directly.

The author could have done a little more implementation hiding by making the structure an abstract type, but then you would have been forced to allocate the structure on the heap every time (as opposed to now where you can put it on the stack if you so desire).

Here I am pasting code for you:

But, I would strongly suggest you to know how it works,

from your question , you are totally unreadable.

Try understanding this code. Read the comments from code

import java.util.Scanner;
public class Palindromes
{

    public static boolean isPal(String s)
    {
        if(s.length() == 0 || s.length() == 1)
            // if length =0 OR 1 then it is
            return true; 
        if(s.charAt(0) == s.charAt(s.length()-1))
            // check for first and last char of String:
            // if they are same then do the same thing for a substring
            // with first and last char removed. and carry on this
            // until you string completes or condition fails
            return isPal(s.substring(1, s.length()-1));

        // if its not the case than string is not.
        return false;
    }

    public static void main(String[]args)
    {
        Scanner sc = new Scanner(System.in);
        System.out.println("type a word to check if its a palindrome or not");
        String x = sc.nextLine();
        if(isPal(x))
            System.out.println(x + " is a palindrome");
        else
            System.out.println(x + " is not a palindrome");
    }
}

I've ran into the same problem recently. After finding the correct path to the pyuic4 file using the file finder I've ran:

C:\Users\ricckli.qgis2\python\plugins\qgis2leaf>C:\OSGeo4W64\bin\pyuic4 -o ui_q gis2leaf.py ui_qgis2leaf.ui

As you can see my ui file was placed in this folder...

QT Creator was installed separately and the pyuic4 file was placed there with the OSGEO4W installer

If you are using SQL Server try Linked Server

This simple thing worked for me!

If it says it can't do 2 things at same time, separate them.

git branch branch_name origin/branch_name 

git checkout branch_name

I had a situation where I needed a separate but persistent name space. I used classes. I don't otherwise. Segregated but persistent names are closures.

>>> class f2:
...     def __init__(self):
...         self.a = 0
...     def __call__(self, arg):
...         self.a += arg
...         return(self.a)
...
>>> f=f2()
>>> f(2)
2
>>> f(2)
4
>>> f(4)
8
>>> f(8)
16

# **OR**
>>> f=f2() # **re-initialize**
>>> f(f(f(f(2)))) # **nested**
16

# handy in list comprehensions to accumulate values
>>> [f(i) for f in [f2()] for i in [2,2,4,8]][-1] 
16

After struggling with this issue for some time and researching about it, I finally managed to solve it following these steps:

1) install jdk version 12
2) Create new variable in systems variable
3) Name it as JAVA_HOME and give jdk installation path
4) add this variable in path and move it to top.
5) go to C:\Program Files (86)\Common Files\Oracle\Java\javapath and replace java.exe and javaw.exe with the corresponding files with the same names from the pathtojavajdk/bin folder

Finally, I checked the default version of java in cmd with "java -version" and it worked!

If you are using SE linux, set it to permissive mode by editing /etc/selinux/config and changing SELINUX=enforcing to SELINUX=permissive

1. Wikipedia Article. To me, inversion of control is turning your sequentially written code and turning it into an delegation structure. Instead of your program explicitly controlling everything, your program sets up a class or library with certain functions to be called when certain things happen.

2. It solves code duplication. For example, in the old days you would manually write your own event loop, polling the system libraries for new events. Nowadays, most modern APIs you simply tell the system libraries what events you're interested in, and it will let you know when they happen.

3. Inversion of control is a practical way to reduce code duplication, and if you find yourself copying an entire method and only changing a small piece of the code, you can consider tackling it with inversion of control. Inversion of control is made easy in many languages through the concept of delegates, interfaces, or even raw function pointers.

   It is not appropriate to use in all cases, because the flow of a program can be harder to follow when written this way. It's a useful way to design methods when writing a library that will be reused, but it should be used sparingly in the core of your own program unless it really solves a code duplication problem.

I had exactly the same problem.

After a recheck of my PATH, I realized I installed both Mingw (64 bit) and Cygwin (32 bit). The problem is that both Mingw and Cygwin have g++.

By deactivating the path of Cygwin, the error disappeared.

Privileges assigned through GRANT option do not need FLUSH PRIVILEGES to take effect - MySQL server will notice these changes and reload the grant tables immediately.

From MySQL documentation:

If you modify the grant tables directly using statements such as INSERT, UPDATE, or DELETE, your changes have no effect on privilege checking until you either restart the server or tell it to reload the tables. If you change the grant tables directly but forget to reload them, your changes have no effect until you restart the server. This may leave you wondering why your changes seem to make no difference!

To tell the server to reload the grant tables, perform a flush-privileges operation. This can be done by issuing a FLUSH PRIVILEGES statement or by executing a mysqladmin flush-privileges or mysqladmin reload command.

If you modify the grant tables indirectly using account-management statements such as GRANT, REVOKE, SET PASSWORD, or RENAME USER, the server notices these changes and loads the grant tables into memory again immediately.

//Here is an example that worked for me

//Swift function that post a request to a server with key values

func insertRecords()
{



    let usrID = txtID.text
    let checkin = lblInOut.text
    let comment = txtComment.text



    // The address of the web service
    let urlString = "http://your_url/checkInOut_post.php"

    // These are the keys that your are sending as part of the post request
    let keyValues = "id=\(usrID)&inout=\(checkin)&comment=\(comment)"




    // 1 - Create the session by getting the configuration and then
    //     creating the session

    let config = NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: config, delegate: nil, delegateQueue: nil)


    // 2 - Create the URL Object

    if let url = NSURL(string: urlString){


        // 3 - Create the Request Object

        var request  = NSMutableURLRequest(URL: url)
        request.HTTPMethod = "POST"

        // set the key values
        request.HTTPBody = keyValues.dataUsingEncoding(NSUTF8StringEncoding);


        // 4 - execute the request

        let taskData = session.dataTaskWithRequest(request, completionHandler: {

            (data:NSData!, response:NSURLResponse!, error:NSError!) -> Void in

            println("\(data)")

            // 5 - Do something with the Data back

            if (data != nil) {

                // we got some data back
                println("\(data)")

                let result = NSString(data: data , encoding: NSUTF8StringEncoding)
                println("\(result)")

                if result == "OK" {

                    let a = UIAlertView(title: "OK", message: "Attendece has been recorded", delegate: nil, cancelButtonTitle: "OK")

                    println("\(result)")

                    dispatch_async(dispatch_get_main_queue()) {


                    a.show()


                    }


                } else {
                  // display error and do something else

                }


            } else

            {   // we got an error
                println("Error getting stores :\(error.localizedDescription)")

            }


        })

        taskData.resume()



    }


}

PHP Code to get the key values

$empID = $_POST['id'];

$inOut = $_POST['inout'];

$comment = $_POST['comment'];

Start phpMyAdmin and access wp_users from your wordpress instance. Edit record and select user_pass function to match MD5. Write the string that will be your new password in VALUE. Click, GO. Go to your wordpress website and enter your new password. Back to phpMyAdmin you will see that WP changed the HASH to something like $P$B... enjoy!

CharMatcher.retainFrom can be used, if you're using the Google Guava library:

String s = "A função";
String stripped = CharMatcher.ascii().retainFrom(s);
System.out.println(stripped); // Prints "A funo"

Problem

[Vue warn]: Property or method "changeSetting" is not defined on the instance but referenced during render. Make sure to declare reactive data properties in the data option. (found in <MainTable>)

The error is occurring because the changeSetting method is being referenced in the MainTable component here:

    "<button @click='changeSetting(index)'> Info </button>" +

However the changeSetting method is not defined in the MainTable component. It is being defined in the root component here:

var app = new Vue({
  el: "#settings",
  data: data,
  methods: {
    changeSetting: function(index) {
      data.settingsSelected = data.settings[index];
    }
  }
});

What needs to be remembered is that properties and methods can only be referenced in the scope where they are defined.

Everything in the parent template is compiled in parent scope; everything in the child template is compiled in child scope.

You can read more about component compilation scope in Vue's documentation.

What can I do about it?

So far there has been a lot of talk about defining things in the correct scope so the fix is just to move the changeSetting definition into the MainTable component?

It seems that simple but here's what I recommend.

You'd probably want your MainTable component to be a dumb/presentational component. (Here is something to read if you don't know what it is but a tl;dr is that the component is just responsible for rendering something – no logic). The smart/container element is responsible for the logic – in the example given in your question the root component would be the smart/container component. With this architecture you can use Vue's parent-child communication methods for the components to interact. You pass down the data for MainTable via props and emit user actions from MainTable to its parent via events. It might look something like this:

Vue.component('main-table', {
  template: "<ul>" +
    "<li v-for='(set, index) in settings'>" +
    "{{index}}) " +
    "{{set.title}}" +
    "<button @click='changeSetting(index)'> Info </button>" +
    "</li>" +
    "</ul>",
  props: ['settings'],
  methods: {
    changeSetting(value) {
      this.$emit('change', value);
    },
  },
});


var app = new Vue({
  el: '#settings',
  template: '<main-table :settings="data.settings" @change="changeSetting"></main-table>',
  data: data,
  methods: {
    changeSetting(value) {
      // Handle changeSetting
    },
  },
}),

The above should be enough to give you a good idea of what to do and kickstart resolving your issue.

function table.find(t,value)
    if t and type(t)=="table" and value then
        for _, v in ipairs (t) do
            if v == value then
                return true;
            end
        end
        return false;
    end
    return false;
end

Apple users can download your .apk file, however they cannot run it. It is a different file format than iPhone apps (.ipa)

This Works on Framework 4.0 or Higher. Supports "GO". Also show the error message, line, and sql command.

using System.Data.SqlClient;

        private bool runSqlScriptFile(string pathStoreProceduresFile, string connectionString)
    {
        try
        {
            string script = File.ReadAllText(pathStoreProceduresFile);

            // split script on GO command
            System.Collections.Generic.IEnumerable<string> commandStrings = Regex.Split(script, @"^\s*GO\s*$",
                                     RegexOptions.Multiline | RegexOptions.IgnoreCase);
            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                connection.Open();
                foreach (string commandString in commandStrings)
                {
                    if (commandString.Trim() != "")
                    {
                        using (var command = new SqlCommand(commandString, connection))
                        {
                        try
                        {
                            command.ExecuteNonQuery();
                        }
                        catch (SqlException ex)
                        {
                            string spError = commandString.Length > 100 ? commandString.Substring(0, 100) + " ...\n..." : commandString;
                            MessageBox.Show(string.Format("Please check the SqlServer script.\nFile: {0} \nLine: {1} \nError: {2} \nSQL Command: \n{3}", pathStoreProceduresFile, ex.LineNumber, ex.Message, spError), "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                            return false;
                        }
                    }
                    }
                }
                connection.Close();
            }
        return true;
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
            return false;
        }
    }

Surprised this wasn't mentioned yet:

import os
fn = '/some/path/a.tar.gz'

basename = os.path.basename(fn)  # os independent
Out[] a.tar.gz

base = basename.split('.')[0]
Out[] a

ext = '.'.join(basename.split('.')[1:])   # <-- main part

# if you want a leading '.', and if no result `None`:
ext = '.' + ext if ext else None
Out[] .tar.gz

Benefits:

• Works as expected for anything I can think of
• No modules
• No regex
• Cross-platform
• Easily extendible (e.g. no leading dots for extension, only last part of extension)

As function:

def get_extension(filename):
    basename = os.path.basename(filename)  # os independent
    ext = '.'.join(basename.split('.')[1:])
    return '.' + ext if ext else None

the line

age=document.getElementById("age").value;

says 'the variable I called 'age' has the value of the element with id 'age'. In this case the input field.

The line

voteable=(age<18)?"Too young":"Old enough";

says in a variable I called 'voteable' I store the value following the rule :

"If age is under 18 then show 'Too young' else show 'Old enough'"

The last line tell to put the value of 'voteable' in the element with id 'demo' (in this case the 'p' element)

It's a flaw in the C++ language. You can't take the address of a reference, since attempting to do so would result in the address of the object being referred to, and thus you can never get a pointer to a reference. std::vector works with pointers to its elements, so the values being stored need to be able to be pointed to. You'll have to use pointers instead.

try this:

ComboBox cbx = new ComboBox();
cbx.DisplayMember = "Text";
cbx.ValueMember = "Value";

EDIT (a little explanation, sory, I also didn't notice your combobox wasn't bound, I blame the lack of caffeine):

The difference between SelectedValue and SelectedItem are explained pretty well here: ComboBox SelectedItem vs SelectedValue

So, if your combobox is not bound to datasource, DisplayMember and ValueMember doesn't do anything, and SelectedValue will always be null, SelectedValueChanged won't be called. So either bind your combobox:

            comboBox1.DisplayMember = "Text";
            comboBox1.ValueMember = "Value";

            List<ComboboxItem> list = new List<ComboboxItem>();

            ComboboxItem item = new ComboboxItem();
            item.Text = "choose a server...";
            item.Value = "-1";
            list.Add(item);

            item = new ComboboxItem();
            item.Text = "S1";
            item.Value = "1";
            list.Add(item);

            item = new ComboboxItem();
            item.Text = "S2";
            item.Value = "2";
            list.Add(item);

            cbx.DataSource = list; // bind combobox to a datasource

or use SelectedItem property:

if (cbx.SelectedItem != null)
             Console.WriteLine("ITEM: "+comboBox1.SelectedItem.ToString());

For me, fny answers really got it all. since fetch is not throwing error, we need to throw/handle the error ourselves. Posting my solution with async/await. I think it's more strait forward and readable

Solution 1: Not throwing an error, handle the error ourselves

  async _fetch(request) {
    const fetchResult = await fetch(request); //Making the req
    const result = await fetchResult.json(); // parsing the response

    if (fetchResult.ok) {
      return result; // return success object
    }


    const responseError = {
      type: 'Error',
      message: result.message || 'Something went wrong',
      data: result.data || '',
      code: result.code || '',
    };

    const error = new Error();
    error.info = responseError;

    return (error);
  }

Here if we getting an error, we are building an error object, plain JS object and returning it, the con is that we need to handle it outside. How to use:

  const userSaved = await apiCall(data); // calling fetch
  if (userSaved instanceof Error) {
    debug.log('Failed saving user', userSaved); // handle error

    return;
  }
  debug.log('Success saving user', userSaved); // handle success

Solution 2: Throwing an error, using try/catch

async _fetch(request) {
    const fetchResult = await fetch(request);
    const result = await fetchResult.json();

    if (fetchResult.ok) {
      return result;
    }

    const responseError = {
      type: 'Error',
      message: result.message || 'Something went wrong',
      data: result.data || '',
      code: result.code || '',
    };

    let error = new Error();
    error = { ...error, ...responseError };
    throw (error);
  }

Here we are throwing and error that we created, since Error ctor approve only string, Im creating the plain Error js object, and the use will be:

  try {
    const userSaved = await apiCall(data); // calling fetch
    debug.log('Success saving user', userSaved); // handle success
  } catch (e) {
    debug.log('Failed saving user', userSaved); // handle error
  }

Solution 3: Using customer error

  async _fetch(request) {
    const fetchResult = await fetch(request);
    const result = await fetchResult.json();

    if (fetchResult.ok) {
      return result;
    }

    throw new ClassError(result.message, result.data, result.code);
  }

And:

class ClassError extends Error {

  constructor(message = 'Something went wrong', data = '', code = '') {
    super();
    this.message = message;
    this.data = data;
    this.code = code;
  }

}

Hope it helped.

With the -atime, -ctime, and -mtime switches to find, you can get close to what you want to achieve.

sed -e 's/pattern/REPLACEMENT/1' <INPUTFILE

Like the comments suggest, the solution is to use nested spans/rows.

<div class="container">
    <div class="row">
        <div class="span4">1</div>
        <div class="span8">
            <div class="row">
                <div class="span4">2</div>
                <div class="span4">3</div>
            </div>
            <div class="row">
                <div class="span4">4</div>
                <div class="span4">5</div>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="span4">6</div>
        <div class="span4">7</div>
        <div class="span4">8</div>
    </div>
</div>

I found this useful:

double  --> Double.parseDouble(String);
float   --> Float.parseFloat(String);
long    --> Long.parseLong(String);
int     --> Integer.parseInt(String);
char    --> stringGoesHere.charAt(int position);
short   --> Short.parseShort(String);
byte    --> Byte.parseByte(String);
boolean --> Boolean.parseBoolean(String);

Another option is

Private Sub Worksheet_Change(ByVal Target As Range)
    IF Target.Address = "$D$2" Then
        MsgBox("Cell D2 Has Changed.")
    End If
End Sub

I believe this uses fewer resources than Intersect, which will be helpful if your worksheet changes a lot.

It depends on your OS, CPU, Compiler, and possibly other factors.

In general it means the CPU bus could not complete a command, or suffered a conflict, but that could mean a whole range of things depending on the environment and code being run.

-Adam

Try this: http://jsfiddle.net/8fv6e/8/

It is another version of the answers.

HTML:

<label for="aboutDescription" id="aboutHeading">About</label>
<textarea rows="15" cols="50" id="aboutDescription"
    style="max-height:100px;min-height:100px; resize: none"></textarea>
<a  id="imageURLId" target="_blank">Go to
    HomePage</a>

CSS:

#imageURLId{
font-size: 14px;
font-weight: normal;
resize: none;
overflow-y: scroll;

}

You can easily iterate you collection. The example below is for the special Access TempVars collection, but works with any regular collection.

Dim tv As Long
For tv = 0 To TempVars.Count - 1
    Debug.Print TempVars(tv).Name, TempVars(tv).Value
Next tv

It's the Substring method of String, with the first argument set to 0.

 myString.Substring(0,1);

[The following was added by Almo; see Justin J Stark's comment. —Peter O.]

Warning: If the string's length is less than the number of characters you're taking, you'll get an ArgumentOutOfRangeException.

Make that variable as transient.Your problem will get solved..

@Column(name="emp_name", nullable=false, length=30)
    private transient String empName;

Interesting/funny way to do this using parameter expansion (requires bash 4.4 or newer):

${parameter@operator} - P operator

The expansion is a string that is the result of expanding the value of parameter as if it were a prompt string.

$ show_time() { local format='\D{%Y%m%d%H%M%S}'; echo "${format@P}"; }
$ show_time
20180724003251

MySQL

SELECT FieldA
     , GROUP_CONCAT(FieldB ORDER BY FieldB SEPARATOR ',') AS FieldBs
  FROM TableName
 GROUP BY FieldA
 ORDER BY FieldA;

Oracle & DB2

SELECT FieldA
     , LISTAGG(FieldB, ',') WITHIN GROUP (ORDER BY FieldB) AS FieldBs
  FROM TableName
 GROUP BY FieldA
 ORDER BY FieldA;

PostgreSQL

SELECT FieldA
     , STRING_AGG(FieldB, ',' ORDER BY FieldB) AS FieldBs
  FROM TableName
 GROUP BY FieldA
 ORDER BY FieldA;

SQL Server

SQL Server ≥ 2017 & Azure SQL

SELECT FieldA
     , STRING_AGG(FieldB, ',') WITHIN GROUP (ORDER BY FieldB) AS FieldBs
  FROM TableName
 GROUP BY FieldA
 ORDER BY FieldA;

SQL Server ≤ 2016 (CTE included to encourage the DRY principle)

  WITH CTE_TableName AS (
       SELECT FieldA, FieldB
         FROM TableName)
SELECT t0.FieldA
     , STUFF((
       SELECT ',' + t1.FieldB
         FROM CTE_TableName t1
        WHERE t1.FieldA = t0.FieldA
        ORDER BY t1.FieldB
          FOR XML PATH('')), 1, LEN(','), '') AS FieldBs
  FROM CTE_TableName t0
 GROUP BY t0.FieldA
 ORDER BY FieldA;

SQLite

Ordering requires a CTE or subquery

  WITH CTE_TableName AS (
       SELECT FieldA, FieldB
         FROM TableName
        ORDER BY FieldA, FieldB)
SELECT FieldA
     , GROUP_CONCAT(FieldB, ',') AS FieldBs
  FROM CTE_TableName
 GROUP BY FieldA
 ORDER BY FieldA;

Without ordering

SELECT FieldA
     , GROUP_CONCAT(FieldB, ',') AS FieldBs
  FROM TableName
 GROUP BY FieldA
 ORDER BY FieldA;

(Alt + Shift + X) , then M to Run Maven Build. You will need to specify the Maven goals you want on Run -> Run Configurations

This occured to me today. None of above solutions work for me. But a little googling helped me to solve this issue. I'm coding for wechat 3rd party server.

Things get slightly more complicated when your node.js application requires reading streaming POST data, such as a request from a REST client. In this case, the request's property "readable" will be set to true and the POST data must be read in chunks in order to collect all content.

http://www.primaryobjects.com/CMS/Article144

No. That is not possible. You should use an array instead:

name[i] = i;

In this case, your name+i is name[i].

A cherry-pick is basically a commit, so if you want to undo it, you just undo the commit.

when I have other local changes

Stash your current changes so you can reapply them after resetting the commit.

$ git stash
$ git reset --hard HEAD^
$ git stash pop  # or `git stash apply`, if you want to keep the changeset in the stash

when I have no other local changes

$ git reset --hard HEAD^

You can use AutoHotkey (third party application), the command below is good with plain alphanumeric text, however some other characters like =^"%#! are mistyped in console like bash or cmd. (In any non-console window this command works fine with all characters.)

^+v::SendRaw %clipboard%

If you have a full DB dump:

PGPASSWORD="your_pass" psql -h "your_host" -U "your_user" -d "your_database" -f backup.sql

If you have schemas kept separately, however, that won't work. Then you'll need to disable triggers for data insertion, akin to pg_restore --disable-triggers. You can then use this:

cat database_data_only.gzip | gunzip | PGPASSWORD="your_pass" psql -h "your_host" -U root "your_database" -c 'SET session_replication_role = replica;' -f /dev/stdin

On a side note, it is a very unfortunate downside of postgres, I think. The default way of creating a dump in pg_dump is incompatible with pg_restore. With some additional keys, however, it is. WTF?

I found json_reformat to be very handy. So I just did the following:

curl http://127.0.0.1:5000/people/api.json | json_reformat

that's it!

I too had to face the same problem. This worked for me. Right click and run as admin than run usual command to install. But first run update command to update the pip

python -m pip install --upgrade pip

NGINX large uploads are successfully working on hosted WordPress sites, finally (as per suggestions from nembleton & rjha94)

I thought it might be helpful for someone, if I added a little clarification to their suggestions. For starters, please be certain you have included your increased upload directive in ALL THREE separate definition blocks (server, location & http). Each should have a separate line entry. The result will like something like this (where the ... reflects other lines in the definition block):

http {
    ...
    client_max_body_size 200M;
}    

(in my ISPconfig 3 setup, this block is in the /etc/nginx/nginx.conf file)

server {
    ...
    client_max_body_size 200M;
}

location / {
    ...
    client_max_body_size 200M;
} 

(in my ISPconfig 3 setup, these blocks are in the /etc/nginx/conf.d/default.conf file)

Also, make certain that your server's php.ini file is consistent with these NGINX settings. In my case, I changed the setting in php.ini's File_Uploads section to read:

upload_max_filesize = 200M

Note: if you are managing an ISPconfig 3 setup (my setup is on CentOS 6.3, as per The Perfect Server), you will need to manage these entries in several separate files. If your configuration is similar to one in the step-by-step setup, the NGINX conf files you need to modify are located here:

/etc/nginx/nginx.conf
/etc/nginx/conf.d/default.conf 

My php.ini file was located here:

/etc/php.ini

I continued to overlook the http {} block in the nginx.conf file. Apparently, overlooking this had the effect of limiting uploading to the 1M default limit. After making the associated changes, you will also want to be sure to restart your NGINX and PHP FastCGI Process Manager (PHP-FPM) services. On the above configuration, I use the following commands:

/etc/init.d/nginx restart
/etc/init.d/php-fpm restart

You may think JDBC is a rich API and ResultSet has got so many methods then why not just a getCount() method? Well, For many databases e.g. Oracle, MySQL and SQL Server, ResultSet is a streaming API, this means that it does not load (or maybe even fetch) all the rows from the database server. By iterating to the end of the ResultSet you may add significantly to the time taken to execute in certain cases.

Btw, if you have to there are a couple of ways to do it e.g. by using ResultSet.last() and ResultSet.getRow() method, that's not the best way to do it but it works if you absolutely need it.

Though, getting the column count from a ResultSet is easy in Java. The JDBC API provides a ResultSetMetaData class which contains methods to return the number of columns returned by a query and hold by ResultSet.

There is a Visual Studio Code issue you can track and thumbs up for this feature. There was also a User Voice issue, but I believe they moved voting to GitHub issues.

It seems they want auto import functionality in TypeScript, so it can be reused. TypeScript auto import issue to track and thumbs up here.

This ought to do the trick: just limit the result to 1 row; if a row comes back the $lectureName is Assigned, otherwise it's Available.

function checkLectureStatus($lectureName)
{
    $con = connectvar();
    mysql_select_db("mydatabase", $con);
    $result = mysql_query(
        "SELECT * FROM preditors_assigned WHERE lecture_name='$lectureName' LIMIT 1");

    if(mysql_fetch_array($result) !== false)
        return 'Assigned';
    return 'Available';
}

For Android Studio / intellij users:

• Select Version Control
• Select Log
• Right click the commit for which you want to rename
• Click Edit Commit Message
• Write your commit message
• Done

pytest constantly evolves and with one of the nice changes in the recent past it is now possible to simultaneously test for

• the exception type (strict test)
• the error message (strict or loose check using a regular expression)

Two examples from the documentation:

with pytest.raises(ValueError, match='must be 0 or None'):
    raise ValueError('value must be 0 or None')

with pytest.raises(ValueError, match=r'must be \d+$'):
    raise ValueError('value must be 42')

I have been using that approach in a number of projects and like it very much.

function getLastDay(y, m) {
   return 30 + (m <= 7 ? ((m % 2) ? 1 : 0) : (!(m % 2) ? 1 : 0)) - (m == 2) - (m == 2 && y % 4 != 0 || !(y % 100 == 0 && y % 400 == 0)); 
}

generateNumbers() expects a parameter and you aren't passing one in!

generateNumbers() also returns after it has set the first random number - seems to be some confusion about what it is trying to do.

EDIT: In summary, back in 2010 when this question was asked the most common way to solve this problem was to save a reference to the context where the setTimeout function call is made, because setTimeout executes the function with this pointing to the global object:

var that = this;
if (this.options.destroyOnHide) {
     setTimeout(function(){ that.tip.destroy() }, 1000);
} 

In the ES5 spec, just released a year before that time, it introduced the bind method, this wasn't suggested in the original answer because it wasn't yet widely supported and you needed polyfills to use it but now it's everywhere:

if (this.options.destroyOnHide) {
     setTimeout(function(){ this.tip.destroy() }.bind(this), 1000);
}

The bind function creates a new function with the this value pre-filled.

Now in modern JS, this is exactly the problem arrow functions solve in ES6:

if (this.options.destroyOnHide) {
     setTimeout(() => { this.tip.destroy() }, 1000);
}

Arrow functions do not have a this value of its own, when you access it, you are accessing the this value of the enclosing lexical scope.

HTML5 also standardized timers back in 2011, and you can pass now arguments to the callback function:

if (this.options.destroyOnHide) {
     setTimeout(function(that){ that.tip.destroy() }, 1000, this);
}

See also:

• setTimeout - The 'this' problem

This query generates size for both log and data in MB as well as GB

SELECT X.database_name,
       X.log_size_mb,
       X.log_size_mb / 1024 AS log_size_gb,
       X.row_size_mb,
       X.row_size_mb / 1024 AS row_size_gb,
       X.total_size_mb,
       X.total_size_mb / 1024 AS total_size_gb
  FROM (SELECT database_name = DB_NAME(database_id),
                  log_size_mb = CAST(SUM(CASE
                                              WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8, 2)),
                  row_size_mb = CAST(SUM(CASE
                                              WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8, 2)),
                  total_size_mb = CAST(SUM(size) * 8. / 1024 AS DECIMAL(8, 2))
            FROM sys.master_files WITH (NOWAIT)
            WHERE database_id = DB_ID() -- current db by default
            GROUP BY database_id) AS X

Robustness diagrams are written after use cases and before class diagrams. They help to identify the roles of use case steps. You can use them to ensure your use cases are sufficiently robust to represent usage requirements for the system you're building.

They involve:

1. Actors
2. Use Cases
3. Entities
4. Boundaries
5. Controls

Whereas the Model-View-Controller pattern is used for user interfaces, the Entity-Control-Boundary Pattern (ECB) is used for systems. The following aspects of ECB can be likened to an abstract version of MVC, if that's helpful:

Entities (model)
Objects representing system data, often from the domain model.

Boundaries (view/service collaborator)
Objects that interface with system actors (e.g. a user or external service). Windows, screens and menus are examples of boundaries that interface with users.

Controls (controller)
Objects that mediate between boundaries and entities. These serve as the glue between boundary elements and entity elements, implementing the logic required to manage the various elements and their interactions. It is important to understand that you may decide to implement controllers within your design as something other than objects – many controllers are simple enough to be implemented as a method of an entity or boundary class for example.

Four rules apply to their communication:

1. Actors can only talk to boundary objects.
2. Boundary objects can only talk to controllers and actors.
3. Entity objects can only talk to controllers.
4. Controllers can talk to boundary objects and entity objects, and to other controllers, but not to actors

Communication allowed:

         Entity    Boundary   Control
Entity     X                     X
Boundary                         X
Control    X          X          X

If you are using sagemath cloud version, you can simply go to the left corner,
select File ? Download as ? Pdf via LaTeX (.pdf)
Check the screenshot if you want.

If it dosn't work for any reason, you can try another way.
select File ? Print Preview and then on the preview
right click ? Print and then select save as pdf.

If you want to create and submit your form from Javascript as is in your question and you want to create popup window with custom features I propose this solution (I put comments above the lines i added):

var form = document.createElement("form");
form.setAttribute("method", "post");
form.setAttribute("action", "test.jsp");

// setting form target to a window named 'formresult'
form.setAttribute("target", "formresult");

var hiddenField = document.createElement("input");              
hiddenField.setAttribute("name", "id");
hiddenField.setAttribute("value", "bob");
form.appendChild(hiddenField);
document.body.appendChild(form);

// creating the 'formresult' window with custom features prior to submitting the form
window.open('test.html', 'formresult', 'scrollbars=no,menubar=no,height=600,width=800,resizable=yes,toolbar=no,status=no');

form.submit();

If using sqlplus you can define a variable thus:

define <varname>=<varvalue>

And you can display the value by:

define <varname>

And then use it in a query as, for example:

select *
from tab1
where col1 = '&varname';

Just use getContentResolver().openInputStream(uri) to get an InputStream from a URI.

http://developer.android.com/reference/android/content/ContentResolver.html#openInputStream(android.net.Uri)

Here is an simple implementation using javascript which is based on the conversion of latitude degree to kms where 1 degree latitude ~ 111.2 km.

I am calculating bounds of the map from a given latitude, longitude and radius in kilometers.

function getBoundsFromLatLng(lat, lng, radiusInKm){
     var lat_change = radiusInKm/111.2;
     var lon_change = Math.abs(Math.cos(lat*(Math.PI/180)));
     var bounds = { 
         lat_min : lat - lat_change,
         lon_min : lng - lon_change,
         lat_max : lat + lat_change,
         lon_max : lng + lon_change
     };
     return bounds;
}

In your case scenario, Why not use GROUP BY and HAVING clause instead of JOINING table to itself. You may also use other useful function. see this link

=IIF(fields!column.value =Condition,"Red","Black")

Assuming the element which is floated and will be centered is a div with an id="content" ...

<body>
<div id="wrap">
   <div id="content">
   This will be centered
   </div>
</div>
</body>

And apply the following CSS:

#wrap {
    float: left;
    position: relative;
    left: 50%;
}

#content {
    float: left;
    position: relative;
    left: -50%;
}

Here is a good reference regarding that.

For this (and most plotting) I would not rely on the Pandas wrappers to matplotlib. Instead, just use matplotlib directly:

import matplotlib.pyplot as plt
plt.scatter(df['col_name_1'], df['col_name_2'])
plt.show() # Depending on whether you use IPython or interactive mode, etc.

and remember that you can access a NumPy array of the column's values with df.col_name_1.values for example.

I ran into trouble using this with Pandas default plotting in the case of a column of Timestamp values with millisecond precision. In trying to convert the objects to datetime64 type, I also discovered a nasty issue: < Pandas gives incorrect result when asking if Timestamp column values have attr astype >.

You can of course change the order of the columns in a sql statement. However if you want to abstract tables' physical column order, you can create a view. i.e

CREATE TABLE myTable(
    a int NULL,
    b varchar(50) NULL,
    c datetime NULL
);


CREATE VIEW vw_myTable
AS
SELECT c, a, b
  FROM myTable;

select * from myTable;
a  b  c
-  -  -

select * from vw_myTable
c  a  b
-  -  -

Check if Xcode is installed or not:

$ gcc --version

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"

$ brew doctor

$ brew update

http://techsharehub.blogspot.com/2013/08/brew-command-not-found.html "click here for exact instruction updates"

For python2/3, Using below code snippet we can activate virtual env.

activate_this = "/home/<--path-->/<--virtual env name -->/bin/activate_this.py" #for ubuntu
activate_this = "D:\<-- path -->\<--virtual env name -->\Scripts\\activate_this.py" #for windows
with open(activate_this) as f:
    code = compile(f.read(), activate_this, 'exec')
    exec(code, dict(__file__=activate_this))

Aside from the one being ANSI and speed etc., there is a very important difference that always matters to me; more than ANSI and speed. The number of bugs I have fixed due to this important overlook is large. I look for this during code reviews all the time.

-- Arrange
create table Employee (EmployeeId int);
insert into dbo.Employee values (1);
insert into dbo.Employee values (2);
insert into dbo.Employee values (3);

-- Act
declare @employeeId int;
select @employeeId = e.EmployeeId from dbo.Employee e;

-- Assert
-- This will print 3, the last EmployeeId from the query (an arbitrary value)
-- Almost always, this is not what the developer was intending. 
print @employeeId; 

Almost always, that is not what the developer is intending. In the above, the query is straight forward but I have seen queries that are quite complex and figuring out whether it will return a single value or not, is not trivial. The query is often more complex than this and by chance it has been returning single value. During developer testing all is fine. But this is like a ticking bomb and will cause issues when the query returns multiple results. Why? Because it will simply assign the last value to the variable.

Now let's try the same thing with SET:

 -- Act
 set @employeeId = (select e.EmployeeId from dbo.Employee e);

You will receive an error:

Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.

That is amazing and very important because why would you want to assign some trivial "last item in result" to the @employeeId. With select you will never get any error and you will spend minutes, hours debugging.

Perhaps, you are looking for a single Id and SET will force you to fix your query. Thus you may do something like:

-- Act
-- Notice the where clause
set @employeeId = (select e.EmployeeId from dbo.Employee e where e.EmployeeId = 1);
print @employeeId;

Cleanup

drop table Employee;

In conclusion, use:

• SET: When you want to assign a single value to a variable and your variable is for a single value.
• SELECT: When you want to assign multiple values to a variable. The variable may be a table, temp table or table variable etc.

This is an old posting but maybe still useful for someone.

I had the same error message. In the end the problem was an invalid name for the second argument, i.e., I had a line like:

   window.open('/somefile.html', 'a window title', 'width=300');

The problem was 'a window title' as it is not valid. It worked fine with the following line:

   window.open('/somefile.html', '', 'width=300');

In fact, reading carefully I realized that Microsoft does not support a name as second argument. When you look at the official documentation page, you see that Microsoft only allows the following arguments, If using that argument at all:

• _blank
• _media
• _parent
• _search
• _self
• _top

First of all gzip can help you more than a Html Minifier

1. With nginx:

   gzip on;
   gzip_disable "msie6";
   
   gzip_vary on;
   gzip_proxied any;
   gzip_comp_level 6;
   gzip_buffers 16 8k;
   gzip_http_version 1.1;
   gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
   

2. With apache you can use mod_gzip

Second: with gzip + Html Minification you can reduce the file size drastically!!!

I've created this HtmlMinifier for PHP.

You can retrieve it through composer: composer require arjanschouten/htmlminifier dev-master.

There is a Laravel service provider. If you're not using Laravel you can use it from PHP.

// create a minify context which will be used through the minification process
$context = new MinifyContext(new PlaceholderContainer());
// save the html contents in the context
$context->setContents('<html>My html...</html>');
$minify = new Minify();
// start the process and give the context with it as parameter
$context = $minify->run($context);

// $context now contains the minified version
$minifiedContents = $context->getContents();

As you can see you can extend a lot of things in here and you can pass various options. Check the readme to see all the available options.

This HtmlMinifier is complete and safe. It takes 3 steps for the minification process:

1. Replace critical content temporary with a placeholder.
2. Run the minification strategies.
3. Restore the original content.

I would suggest that you cache the output of you're views. The minification process should be a one time process. Or do it for example interval based.

Clear benchmarks are not created at the time. However the minifier can reduce the page size with 5-25% based on the your markup!

If you want to add you're own strategies you can use the addPlaceholder and the addMinifier methods.

just write in your Custom ArrayAdaper this code:

public void swapItems(ArrayList<Item> arrayList) {
    this.clear();
    this.addAll(arrayList);
}

Also you can pipe the answers to the script:

printf "y\npassword\n" | sh test.sh

where \n is escape-sequence

I figured out that this behaves like a mousedown event:

button:active:hover {}

https://www.kaggle.com/jboysen/quick-gz-pandas-tutorial

Please follow this link.

import pandas as pd
traffic_station_df = pd.read_csv('C:\\Folders\\Jupiter_Feed.txt.gz', compression='gzip',
                                 header=1, sep='\t', quotechar='"')

#traffic_station_df['Address'] = 'address'

#traffic_station_df.append(traffic_station_df)
print(traffic_station_df)

If you are trying to write straightforward, yet forbidden code like this:

    public class Person
    {
        public enum Gender
        {
            Male,
            Female
        }
        //Won't compile: auto-property has same name as enum
        public Gender Gender { get; set; }  
    }

Your options are:

1. Ignore the MS recommendation and use a prefix or suffix on the enum name:

   public class Person
   {
       public enum GenderEnum
       {
           Male,
           Female
       }
       public GenderEnum Gender { get; set; }
   }
   

2. Move the enum definition outside the class, preferably into another class. Here is an easy solution to the above:

   public class Characteristics
   {
       public enum Gender
       {
           Male,
           Female
       }
   }
   public class Person
   {
       public Characteristics.Gender Gender { get; set; }  
   }
   

Delay Multi Function Calls using Labels

This is the solution i work with. It will delay the execution on ANY function you want. It can be the keydown search query, maybe the quick click on previous or next buttons ( that would otherwise send multiple request if quickly clicked continuously , and be not used after all). This uses a global object that stores each execution time, and compares it with the most current request.

So the result is that only that last click / action will actually be called, because those requests are stored in a queue, that after the X milliseconds is called if no other request with the same label exists in the queue!

function delay_method(label,callback,time){
    if(typeof window.delayed_methods=="undefined"){window.delayed_methods={};}  
    delayed_methods[label]=Date.now();
    var t=delayed_methods[label];
    setTimeout(function(){ if(delayed_methods[label]!=t){return;}else{  delayed_methods[label]=""; callback();}}, time||500);
  }

You can set your own delay time ( its optional, defaults to 500ms). And send your function arguments in a "closure fashion".

For example if you want to call the bellow function:

function send_ajax(id){console.log(id);}

To prevent multiple send_ajax requests, you delay them using:

delay_method( "check date", function(){ send_ajax(2); } ,600);

Every request that uses the label "check date" will only be triggered if no other request is made in the 600 miliseconds timeframe. This argument is optional

Label independency (calling the same target function) but run both:

delay_method("check date parallel", function(){send_ajax(2);});
delay_method("check date", function(){send_ajax(2);});

Results in calling the same function but delay them independently because of their labels being different

Mine were located here on Ubuntu 18.04 when I installed JavaFX using apt install openjfx (as noted already by @jewelsea above)

/usr/share/java/openjfx/jre/lib/ext/jfxrt.jar
/usr/lib/jvm/java-8-openjdk-amd64/jre/lib/ext/jfxrt.jar

I arrived here like most people with this same issue, and left shocked that none of the answer even remotely worked.

For anyone interested, here is the actual solution:

... //rest of options
width: '100%',
height: '350',
chartArea:{
    left:5,
    top: 20,
    width: '100%',
    height: '350',
}
... //rest of options

The key here has nothing to do with the "left" or "top" values. But rather that the:

Dimensions of both the chart and chart-area are SET and set to the SAME VALUE

As an amendment to my answer. The above will indeed solve the "excessive" padding/margin/whitespace problem. However, if you wish to include axes labels and/or a legend you will need to reduce the height & width of the chart area so something slightly below the outer width/height. This will "tell" the chart API that there is sufficient room to display these properties. Otherwise it will happily exclude them.

in my vue project i fixed this problem like this :

vim package.json
...
"rules": {
    "no-console": "off"
},
...

ps : package.json is a configfile in the vue project dir, finally the content shown like this:

{
  "name": "metadata-front",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build",
    "lint": "vue-cli-service lint"
  },
  "dependencies": {
    "axios": "^0.18.0",
    "vue": "^2.5.17",
    "vue-router": "^3.0.2"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "^3.0.4",
    "@vue/cli-plugin-eslint": "^3.0.4",
    "@vue/cli-service": "^3.0.4",
    "babel-eslint": "^10.0.1",
    "eslint": "^5.8.0",
    "eslint-plugin-vue": "^5.0.0-0",
    "vue-template-compiler": "^2.5.17"
  },
  "eslintConfig": {
    "root": true,
    "env": {
      "node": true
    },
    "extends": [
      "plugin:vue/essential",
      "eslint:recommended"
    ],
    "rules": {
        "no-console": "off"
    },
    "parserOptions": {
      "parser": "babel-eslint"
    }
  },
  "postcss": {
    "plugins": {
      "autoprefixer": {}
    }
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not ie <= 8"
  ]
}

React: add this where you want in your render method.

• Object in state:

<a
  className="pull-right btn btn-primary"
  style={{ margin: 10 }}
  href={`data:text/json;charset=utf-8,${encodeURIComponent(
  JSON.stringify(this.state.objectToDownload)
  )}`}
  download="data.json"
>
  DOWNLOAD DATA AS JSON
</a>

• Object in props:

<a
  className="pull-right btn btn-primary"
  style={{ margin: 10 }}
  href={`data:text/json;charset=utf-8,${encodeURIComponent(
  JSON.stringify(this.props.objectToDownload)
  )}`}
  download="data.json"
>
  DOWNLOAD DATA AS JSON
</a>

className and style are optional, modify the style according to your needs.

Just create a new connection (hit the green plus sign) and enter the schema name and password of the new default schema your DBA suggested. You can switch between your old schema and the new schema with the pull down menu at the top right end of your window.

• RenderPartial() is a void method that writes to the response stream. A void method, in C#, needs a ; and hence must be enclosed by { }.

• Partial() is a method that returns an MvcHtmlString. In Razor, You can call a property or a method that returns such a string with just a @ prefix to distinguish it from plain HTML you have on the page.

You can use too

style="overflow-y: scroll; height:150px; width: auto;"

It's works for me

Why you need to implement shuffle when it already exists? Stay on the shoulders of giants.

import random

d1 = {0:'zero', 1:'one', 2:'two', 3:'three', 4:'four',
     5:'five', 6:'six', 7:'seven', 8:'eight', 9:'nine'}

keys = list(d1)
random.shuffle(keys)

d2 = {}
for key in keys: d2[key] = d1[key]

print(d1)
print(d2)

The first is easiest(involves less typing), and it is guaranteed to work, all members will be set to 0^{[Ref 1]}.
The second is more readable.

The choice depends on user preference or the one which your coding standard mandates.

^{[Ref 1]} Reference C99 Standard 6.7.8.21:

If there are fewer initializers in a brace-enclosed list than there are elements or members of an aggregate, or fewer characters in a string literal used to initialize an array of known size than there are elements in the array, the remainder of the aggregate shall be initialized implicitly the same as objects that have static storage duration.

Good Read:
C and C++ : Partial initialization of automatic structure

Below is the easiest way to SSh in java. Download any of the file in the below link and extract, then add the jar file from the extracted file and add to your build path of the project http://www.ganymed.ethz.ch/ssh2/ and use the below method

public void SSHClient(String serverIp,String command, String usernameString,String password) throws IOException{
        System.out.println("inside the ssh function");
        try
        {
            Connection conn = new Connection(serverIp);
            conn.connect();
            boolean isAuthenticated = conn.authenticateWithPassword(usernameString, password);
            if (isAuthenticated == false)
                throw new IOException("Authentication failed.");        
            ch.ethz.ssh2.Session sess = conn.openSession();
            sess.execCommand(command);  
            InputStream stdout = new StreamGobbler(sess.getStdout());
            BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
            System.out.println("the output of the command is");
            while (true)
            {
                String line = br.readLine();
                if (line == null)
                    break;
                System.out.println(line);
            }
            System.out.println("ExitCode: " + sess.getExitStatus());
            sess.close();
            conn.close();
        }
        catch (IOException e)
        {
            e.printStackTrace(System.err);

        }
    }

I don't think the jar tool supports this natively, but you can just unzip a JAR file with "unzip" and specify the output directory with that with the "-d" option, so something like:

$ unzip -d /home/foo/bar/baz /home/foo/bar/Portal.ear Binaries.war

You need to do type assertion for converting your interface{} to int value.

iAreaId := val.(int)
iAreaId, ok := val.(int)

More information is available.

Output one image every minute, named img001.jpg, img002.jpg, img003.jpg, etc. The %03d dictates that the ordinal number of each output image will be formatted using 3 digits.

ffmpeg -i myvideo.avi -vf fps=1/60 img%03d.jpg

Change the fps=1/60 to fps=1/30 to capture a image every 30 seconds. Similarly if you want to capture a image every 5 seconds then change fps=1/60 to fps=1/5

SOURCE: https://trac.ffmpeg.org/wiki/Create a thumbnail image every X seconds of the video

_{New, expanded answer to an old, commonly asked question...}

Default Values

• Occurrence constraints minOccurs and maxOccurs default to 1.

Common Cases Explained

<xsd:element name="A"/>

means A is required and must appear exactly once.

<xsd:element name="A" minOccurs="0"/>

means A is optional and may appear at most once.

 <xsd:element name="A" maxOccurs="unbounded"/>

means A is required and may repeat an unlimited number of times.

 <xsd:element name="A" minOccurs="0" maxOccurs="unbounded"/>

means A is optional and may repeat an unlimited number of times.

See Also

• W3C XML Schema Part 0: Primer

  In general, an element is required to appear when the value of minOccurs is 1 or more. The maximum number of times an element may appear is determined by the value of a maxOccurs attribute in its declaration. This value may be a positive integer such as 41, or the term unbounded to indicate there is no maximum number of occurrences. The default value for both the minOccurs and the maxOccurs attributes is 1. Thus, when an element such as comment is declared without a maxOccurs attribute, the element may not occur more than once. Be sure that if you specify a value for only the minOccurs attribute, it is less than or equal to the default value of maxOccurs, i.e. it is 0 or 1. Similarly, if you specify a value for only the maxOccurs attribute, it must be greater than or equal to the default value of minOccurs, i.e. 1 or more. If both attributes are omitted, the element must appear exactly once.

• W3C XML Schema Part 1: Structures Second Edition

  <element
    maxOccurs = (nonNegativeInteger | unbounded)  : 1
    minOccurs = nonNegativeInteger : 1
    >
  
  </element>
  

Note in Guzzle V6.0+, another source of getting the following error may be incorrect use of JSON as an array:

Passing in the "body" request option as an array to send a POST request has been deprecated. Please use the "form_params" request option to send a application/x-www-form-urlencoded request, or a the "multipart" request option to send a multipart/form-data request.

Incorrect:

$response = $client->post('http://example.com/api', [
    'body' => [
        'name' => 'Example name',
    ]
])

Correct:

$response = $client->post('http://example.com/api', [
    'json' => [
        'name' => 'Example name',
    ]
])

Correct:

$response = $client->post('http://example.com/api', [
    'headers' => ['Content-Type' => 'application/json'],
    'body' => json_encode([
        'name' => 'Example name',
    ])
])

Try this!

package your.package;

import org.hibernate.HibernateException;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;

public class HibernateUtil
{
    private static SessionFactory sessionFactory;
    private static ServiceRegistry serviceRegistry;

    static
    {
        try
        {
//          Configuration configuration = new Configuration();
            Configuration configuration = new Configuration().configure();

            serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
            sessionFactory = configuration.buildSessionFactory(serviceRegistry);
        }
        catch (HibernateException he)
        {
            System.err.println("Error creating Session: " + he);
            throw new ExceptionInInitializerError(he);
        }
    }

    public static SessionFactory getSessionFactory()
    {
        return sessionFactory;
    } 
}

BindingSource is the only way without going for a 3rd party ORM, it may seem long winded at first but the benefits of one update method on the BindingSource are so helpful.

If your source is say for example a list of user strings

List<string> users = GetUsers();
BindingSource source = new BindingSource();
source.DataSource = users;
dataGridView1.DataSource = source;

then when your done editing just update your data object whether that be a DataTable or List of user strings like here and ResetBindings on the BindingSource;

users = GetUsers(); //Update your data object
source.ResetBindings(false);

You are setting the response headers after writing the contents of the file to the output stream. This is quite late in the response lifecycle to be setting headers. The correct sequence of operations should be to set the headers first, and then write the contents of the file to the servlet's outputstream.

Therefore, your method should be written as follows (this won't compile as it is a mere representation):

response.setContentType("application/force-download");
response.setContentLength((int)f.length());
        //response.setContentLength(-1);
response.setHeader("Content-Transfer-Encoding", "binary");
response.setHeader("Content-Disposition","attachment; filename=\"" + "xxx\"");//fileName);
...
...
File f= new File(fileName);

InputStream in = new FileInputStream(f);
BufferedInputStream bin = new BufferedInputStream(in);
DataInputStream din = new DataInputStream(bin);

while(din.available() > 0){
    out.print(din.readLine());
    out.print("\n");
}

The reason for the failure is that it is possible for the actual headers sent by the servlet would be different from what you are intending to send. After all, if the servlet container does not know what headers (which appear before the body in the HTTP response), then it may set appropriate headers to ensure that the response is valid; setting the headers after the file has been written is therefore futile and redundant as the container might have already set the headers. You could confirm this by looking at the network traffic using Wireshark or a HTTP debugging proxy like Fiddler or WebScarab.

You may also refer to the Java EE API documentation for ServletResponse.setContentType to understand this behavior:

Sets the content type of the response being sent to the client, if the response has not been committed yet. The given content type may include a character encoding specification, for example, text/html;charset=UTF-8. The response's character encoding is only set from the given content type if this method is called before getWriter is called.

This method may be called repeatedly to change content type and character encoding. This method has no effect if called after the response has been committed.

...

Unfortunately apple priority the device date format, so in some cases against what you put, swift change your format to 12hrs

To fix this is necessary to use setLocalizedDateFormatFromTemplate instead of dateFormat an hide the AM and PM

let formatter = DateFormatter()
formatter.setLocalizedDateFormatFromTemplate("HH:mm:ss a")
formatter.amSymbol = ""
formatter.pmSymbol = ""
formatter.timeZone = TimeZone(secondsFromGMT: 0)
var prettyDate = formatter.string(from: Date())

You can check a very useful post with more information detailed in https://prograils.com/posts/the-curious-case-of-the-24-hour-time-format-in-swift

In addition to @jalchr's solution that helped me, I found that when calling ATL::Base64Encode from a c++ application to encode the content you pass to an ASP.NET webservice, you need something else, too. In addition to

sEncryptedString = sEncryptedString.Replace(' ', '+'); 

from @jalchr's solution, you also need to ensure that you do not use the ATL_BASE64_FLAG_NOPAD flag on ATL::Base64Encode:

 BOOL bEncoded = Base64Encode(lpBuffer,
                    nBufferSizeInBytes,
                    strBase64Encoded.GetBufferSetLength(base64Length),
                    &base64Length,ATL_BASE64_FLAG_NOCRLF/*|ATL_BASE64_FLAG_NOPAD*/);

One thing to be wary of is mobile devices, since they implement the idea of the viewport in an 'unusual' way:

http://developer.apple.com/library/ios/#documentation/AppleApplications/Reference/SafariWebContent/UsingtheViewport/UsingtheViewport.html#//apple_ref/doc/uid/TP40006509-SW25

As such, using position: fixed; (as i've seen recommended in other places) usually isn't the way to go. Of course, it depends upon the exact behaviour you're after.

What I've used, and has worked well on desktop and mobile, is:

<body>
    <div id="footer"></div>
</body>

with

body {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0;
    margin: 0;
}

#footer {
    position: absolute;
    bottom: 0;
}

I was facing the same problem. For my solution, I added br enclosed between 2 brackets < > enclosed in double quotation marks, and preceded and followed by the + sign:

+"<br>"+

Try this in your browser and see, it certainly works in my Internet Explorer.

You're looking for the zip builtin function. From the docs:

>>> x = [1, 2, 3]
>>> y = [4, 5, 6]
>>> zipped = zip(x, y)
>>> zipped
[(1, 4), (2, 5), (3, 6)]

First check for an error (N/A value) and then try the comparisation against cvErr(). You are comparing two different things, a value and an error. This may work, but not always. Simply casting the expression to an error may result in similar problems because it is not a real error only the value of an error which depends on the expression.

If IsError(ActiveWorkbook.Sheets("Publish").Range("G4").offset(offsetCount, 0).Value) Then
  If (ActiveWorkbook.Sheets("Publish").Range("G4").offset(offsetCount, 0).Value <> CVErr(xlErrNA)) Then
    'do something
  End If
End If

To had to distinct by two fields (derivative_id & vehicle_type) and to sort by cheapest car. Had to nest aggs.

GET /cars/_search
{
  "size": 0,
  "aggs": {
    "distinct_by_derivative_id": {
      "terms": { 
        "field": "derivative_id"
      },
      "aggs": {
        "vehicle_type": {
          "terms": {
            "field": "vehicle_type"
          },
          "aggs": {
            "cheapest_vehicle": {
              "top_hits": {
                "sort": [
                  { "rental": { "order": "asc" } }
                ],
                "_source": { "includes": [ "manufacturer_name",
                  "rental",
                  "vehicle_type" 
                  ]
                },
                "size": 1
              }
            }
          }
        }
      }
    }
  }
}

Result:

{
  "took" : 3,
  "timed_out" : false,
  "_shards" : {
    "total" : 5,
    "successful" : 5,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 8,
      "relation" : "eq"
    },
    "max_score" : null,
    "hits" : [ ]
  },
  "aggregations" : {
    "distinct_by_derivative_id" : {
      "doc_count_error_upper_bound" : 0,
      "sum_other_doc_count" : 0,
      "buckets" : [
        {
          "key" : "04",
          "doc_count" : 3,
          "vehicle_type" : {
            "doc_count_error_upper_bound" : 0,
            "sum_other_doc_count" : 0,
            "buckets" : [
              {
                "key" : "CAR",
                "doc_count" : 2,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 2,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "8",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "CAR",
                          "manufacturer_name" : "Renault",
                          "rental" : 89.99
                        },
                        "sort" : [
                          89.99
                        ]
                      }
                    ]
                  }
                }
              },
              {
                "key" : "LCV",
                "doc_count" : 1,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 1,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "7",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "LCV",
                          "manufacturer_name" : "Ford",
                          "rental" : 99.99
                        },
                        "sort" : [
                          99.99
                        ]
                      }
                    ]
                  }
                }
              }
            ]
          }
        },
        {
          "key" : "01",
          "doc_count" : 2,
          "vehicle_type" : {
            "doc_count_error_upper_bound" : 0,
            "sum_other_doc_count" : 0,
            "buckets" : [
              {
                "key" : "CAR",
                "doc_count" : 1,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 1,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "1",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "CAR",
                          "manufacturer_name" : "Ford",
                          "rental" : 599.99
                        },
                        "sort" : [
                          599.99
                        ]
                      }
                    ]
                  }
                }
              },
              {
                "key" : "LCV",
                "doc_count" : 1,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 1,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "2",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "LCV",
                          "manufacturer_name" : "Ford",
                          "rental" : 599.99
                        },
                        "sort" : [
                          599.99
                        ]
                      }
                    ]
                  }
                }
              }
            ]
          }
        },
        {
          "key" : "02",
          "doc_count" : 2,
          "vehicle_type" : {
            "doc_count_error_upper_bound" : 0,
            "sum_other_doc_count" : 0,
            "buckets" : [
              {
                "key" : "CAR",
                "doc_count" : 2,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 2,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "4",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "CAR",
                          "manufacturer_name" : "Audi",
                          "rental" : 499.99
                        },
                        "sort" : [
                          499.99
                        ]
                      }
                    ]
                  }
                }
              }
            ]
          }
        },
        {
          "key" : "03",
          "doc_count" : 1,
          "vehicle_type" : {
            "doc_count_error_upper_bound" : 0,
            "sum_other_doc_count" : 0,
            "buckets" : [
              {
                "key" : "CAR",
                "doc_count" : 1,
                "cheapest_vehicle" : {
                  "hits" : {
                    "total" : {
                      "value" : 1,
                      "relation" : "eq"
                    },
                    "max_score" : null,
                    "hits" : [
                      {
                        "_index" : "cars",
                        "_type" : "_doc",
                        "_id" : "5",
                        "_score" : null,
                        "_source" : {
                          "vehicle_type" : "CAR",
                          "manufacturer_name" : "Audi",
                          "rental" : 399.99
                        },
                        "sort" : [
                          399.99
                        ]
                      }
                    ]
                  }
                }
              }
            ]
          }
        }
      ]
    }
  }
}

There should be at least one device/Simulator connected to run Flutter applications.

Also make sure the USB debugging is enabled in developer settings.

If you want to use FXML, you should separate the controller (like you were doing with the SampleController). Then your fx:controller in your FXML should point to that.

Probably you are missing the initialize method in your controller, which is part of the Initializable interface. This method is called after the FXML is loaded, so I recommend you to set your image there.

Your SampleController class must be something like this:

public class SampleController implements Initializable {

    @FXML
    private ImageView imageView;

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        File file = new File("src/Box13.jpg");
        Image image = new Image(file.toURI().toString());
        imageView.setImage(image);
    }
}

I tested here and it's working.

I would use bash's [[:

if [[ ! ("$#" == 1 && $1 =~ ^[0-9]+$ && -d $1) ]]; then 
    echo 'Please pass a number that corresponds to a directory'
    exit 1
fi

I found this faq to be a good source of information.

Several of these things did not work for me... however, this did. Might help someone else in the future. Here is the CSS:

    .img-area {
     display: block;
     padding: 0px 0 0 0px;
     text-indent: 0;
     width: 100%;
     background-size: 100% 95%;
     background-repeat: no-repeat;
     background-image: url("https://yourimage.png");

    }

View: View is just a named query. It doesn't store anything. When there is a query on view, it runs the query of the view definition. Actual data comes from table.

Materialised views: Stores data physically and get updated periodically. While querying MV, it gives data from MV.

You need to load a package (like magrittr or dplyr) that defines the function first, then it should work.

install.packages("magrittr") # package installations are only needed the first time you use it
install.packages("dplyr")    # alternative installation of the %>%
library(magrittr) # needs to be run every time you start R and want to use %>%
library(dplyr)    # alternatively, this also loads %>%

The pipe operator %>% was introduced to "decrease development time and to improve readability and maintainability of code."

But everybody has to decide for himself if it really fits his workflow and makes things easier. For more information on magrittr, click here.

Not using the pipe %>%, this code would return the same as your code:

words <- colnames(as.matrix(dtm))
words <- words[nchar(words) < 20]
words

EDIT: (I am extending my answer due to a very useful comment that was made by @Molx)

Despite being from magrittr, the pipe operator is more commonly used with the package dplyr (which requires and loads magrittr), so whenever you see someone using %>% make sure you shouldn't load dplyr instead.

My problem was that I sillily concluded bootstrap documentation is the latest one.
If you are using Bootstrap 4, the necessary working tab markub is: http://v4-alpha.getbootstrap.com/components/navs/#javascript-behavior

<ul>
  <li class="nav-item"><a class="active" href="#a" data-toggle="tab">a</a></li>
  <li class="nav-item"><a                href="#b" data-toggle="tab">b</a></li>
</ul>

<div class="tab-content">
  <div class="tab-pane active" id="a">a</div>
  <div class="tab-pane"        id="b">b</div>
</div>

Although Chris Baxter's answer helps with original problem, it doesn't work in my case when application is hosted in virtual directory. After investigating the options, I finished with DIY solution.

ProperStyleBundle class includes code borrowed from original CssRewriteUrlTransform to properly transform relative paths within virtual directory. It also throws if file doesn't exist and prevents reordering of files in the bundle (code taken from BetterStyleBundle).

using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Optimization;
using System.Linq;

namespace MyNamespace
{
    public class ProperStyleBundle : StyleBundle
    {
        public override IBundleOrderer Orderer
        {
            get { return new NonOrderingBundleOrderer(); }
            set { throw new Exception( "Unable to override Non-Ordered bundler" ); }
        }

        public ProperStyleBundle( string virtualPath ) : base( virtualPath ) {}

        public ProperStyleBundle( string virtualPath, string cdnPath ) : base( virtualPath, cdnPath ) {}

        public override Bundle Include( params string[] virtualPaths )
        {
            foreach ( var virtualPath in virtualPaths ) {
                this.Include( virtualPath );
            }
            return this;
        }

        public override Bundle Include( string virtualPath, params IItemTransform[] transforms )
        {
            var realPath = System.Web.Hosting.HostingEnvironment.MapPath( virtualPath );
            if( !File.Exists( realPath ) )
            {
                throw new FileNotFoundException( "Virtual path not found: " + virtualPath );
            }
            var trans = new List<IItemTransform>( transforms ).Union( new[] { new ProperCssRewriteUrlTransform( virtualPath ) } ).ToArray();
            return base.Include( virtualPath, trans );
        }

        // This provides files in the same order as they have been added. 
        private class NonOrderingBundleOrderer : IBundleOrderer
        {
            public IEnumerable<BundleFile> OrderFiles( BundleContext context, IEnumerable<BundleFile> files )
            {
                return files;
            }
        }

        private class ProperCssRewriteUrlTransform : IItemTransform
        {
            private readonly string _basePath;

            public ProperCssRewriteUrlTransform( string basePath )
            {
                _basePath = basePath.EndsWith( "/" ) ? basePath : VirtualPathUtility.GetDirectory( basePath );
            }

            public string Process( string includedVirtualPath, string input )
            {
                if ( includedVirtualPath == null ) {
                    throw new ArgumentNullException( "includedVirtualPath" );
                }
                return ConvertUrlsToAbsolute( _basePath, input );
            }

            private static string RebaseUrlToAbsolute( string baseUrl, string url )
            {
                if ( string.IsNullOrWhiteSpace( url )
                     || string.IsNullOrWhiteSpace( baseUrl )
                     || url.StartsWith( "/", StringComparison.OrdinalIgnoreCase )
                     || url.StartsWith( "data:", StringComparison.OrdinalIgnoreCase )
                    ) {
                    return url;
                }
                if ( !baseUrl.EndsWith( "/", StringComparison.OrdinalIgnoreCase ) ) {
                    baseUrl = baseUrl + "/";
                }
                return VirtualPathUtility.ToAbsolute( baseUrl + url );
            }

            private static string ConvertUrlsToAbsolute( string baseUrl, string content )
            {
                if ( string.IsNullOrWhiteSpace( content ) ) {
                    return content;
                }
                return new Regex( "url\\(['\"]?(?<url>[^)]+?)['\"]?\\)" )
                    .Replace( content, ( match =>
                                         "url(" + RebaseUrlToAbsolute( baseUrl, match.Groups["url"].Value ) + ")" ) );
            }
        }
    }
}

Use it like StyleBundle:

bundles.Add( new ProperStyleBundle( "~/styles/ui" )
    .Include( "~/Content/Themes/cm_default/style.css" )
    .Include( "~/Content/themes/custom-theme/jquery-ui-1.8.23.custom.css" )
    .Include( "~/Content/DataTables-1.9.4/media/css/jquery.dataTables.css" )
    .Include( "~/Content/DataTables-1.9.4/extras/TableTools/media/css/TableTools.css" ) );

My framework has long name like FrameworkSDK_Light-1.0.6.framework so I renamed it to FrameworkSDK_Light.framework and it solved my problem.

To split a string with a delimiter with GNU sed you say:

sed 's/delimiter/\n/g'     # GNU sed

For example, to split using : as a delimiter:

$ sed 's/:/\n/g' <<< "he:llo:you"
he
llo
you

Or with a non-GNU sed:

$ sed $'s/:/\\\n/g' <<< "he:llo:you"
he
llo
you

In this particular case, you missed the g after the substitution. Hence, it is just done once. See:

$ echo "string1:string2:string3:string4:string5" | sed s/:/\\n/g
string1
string2
string3
string4
string5

g stands for global and means that the substitution has to be done globally, that is, for any occurrence. See that the default is 1 and if you put for example 2, it is done 2 times, etc.

All together, in your case you would need to use:

sed 's/:/\\n/g' ~/Desktop/myfile.txt

Note that you can directly use the sed ... file syntax, instead of unnecessary piping: cat file | sed.

if it is becoming repetitive work ; i think you shud do code reuse ! why dont you simply write functions that "write" small building blocks of HTML. get the idea? see Eg. you can have a function to which you could pass a string and it would automatically put that into a paragraph tag and present it. Of course you would also need to write some kind of a basic parser to do this (how would the function know where to attach the paragraph!). i dont think you are a beginner .. so i am not elaborating ... do tell me if you do not understand..

When your website is served by only one web server, for each client-server pair, a session object is created and remains in the memory of the web server. All the requests from the client go to this web server and update this session object. If some data needs to be stored in the session object over the period of interaction, it is stored in this session object and stays there as long as the session exists.

However, if your website is served by multiple web servers which sit behind a load balancer, the load balancer decides which actual (physical) web-server should each request go to. For example, if there are 3 web servers A, B and C behind the load balancer, it is possible that www.mywebsite.com/index.jsp is served from server A, www.mywebsite.com/login.jsp is served from server B and www.mywebsite.com/accoutdetails.php are served from server C.

Now, if the requests are being served from (physically) 3 different servers, each server has created a session object for you and because these session objects sit on three independent boxes, there's no direct way of one knowing what is there in the session object of the other. In order to synchronize between these server sessions, you may have to write/read the session data into a layer which is common to all - like a DB. Now writing and reading data to/from a db for this use-case may not be a good idea. Now, here comes the role of sticky-session.

If the load balancer is instructed to use sticky sessions, all of your interactions will happen with the same physical server, even though other servers are present. Thus, your session object will be the same throughout your entire interaction with this website.

To summarize, In case of Sticky Sessions, all your requests will be directed to the same physical web server while in case of a non-sticky loadbalancer may choose any webserver to serve your requests.

As an example, you may read about Amazon's Elastic Load Balancer and sticky sessions here : http://aws.typepad.com/aws/2010/04/new-elastic-load-balancing-feature-sticky-sessions.html

I would use have an application redirect a user to your site with an application id parameter, once the user approves the request generate a unique token that is used by the other app for authentication. This way the other applications are not handling user credentials and other applications can be added, removed and managed by users. Foursquare and a few other sites authenticate this way and its very easy to implement as the other application.

I've tried using the autoplay tag, and .load() .play() still need to be called at least in chrome (maybe its my settings).

the simplest cross browser way to do this with jquery using your example would be

var $video = $('#divVideo video'),
videoSrc = $('source', $video).attr('src', videoFile);
$video[0].load();
$video[0].play();

However the way I'd suggest you do it (for legibility and simplicity) is

var video = $('#divVideo video')[0];
video.src = videoFile;
video.load();
video.play();

Further Reading http://msdn.microsoft.com/en-us/library/ie/hh924823(v=vs.85).aspx#ManagingPlaybackInJavascript

Additional info: .load() only works if there is an html source element inside the video element (i.e. <source src="demo.mp4" type="video/mp4" />)

The non jquery way would be:

HTML

<div id="divVideo">
  <video id="videoID" controls>
    <source src="test1.mp4" type="video/mp4" />
  </video>
</div>

JS

var video = document.getElementById('videoID');
video.src = videoFile;
video.load();
video.play();

Solution is very simple. Find *.module.ts files and comment declarations. In your case find addevent.module.ts file and remove/comment one line below:

@NgModule({
  declarations: [
    // AddEvent, <-- Comment or Remove This Line
  ],
  imports: [
    IonicPageModule.forChild(AddEvent),
  ],
})

This solution worked in ionic 3 for pages that generated by ionic-cli and works in both ionic serve and ionic cordova build android --prod --release commands!

Be happy...

I had this problem earlier and this was my solution.

With Worksheets("Sheet1").Columns(5)
    .NumberFormat = "0"
    .Value = .Value
End With

check this thread. spring mvc restcontroller return json string p/s: you should add jack son mapping config to your WebMvcConfig class

@Override protected void configureMessageConverters( List<HttpMessageConverter<?>> converters) { // put the jackson converter to the front of the list so that application/json content-type strings will be treated as JSON converters.add(new MappingJackson2HttpMessageConverter()); // and probably needs a string converter too for text/plain content-type strings to be properly handled converters.add(new StringHttpMessageConverter()); }

1. utf8_decode $j_decoded = utf8_decode(json_decode($j_encoded)); EDIT or to be more correct $j_encoded = json_encode($j_encoded); $j_decoded = json_decode($j_encoded); no need for en/decoding utf8
2. <meta charset="utf-8" />

Type given command in your terminal..

For disable the selected PHP version...

1. • sudo a2dismod php5
   • sudo service apache2 restart

2. For enable other PHP version....

   • sudo a2enmod php5.6
   • sudo service apache2 restart

It will upgrade Php version, same thing reverse if you want version downgrade, you can see it by PHP_INFO();

You can use regular expressions for extracting the number from string. Lets check it. Suppose this is the string mixing text and numbers 'stack12345overflow569'. This one should work:

select regexp_replace('stack12345overflow569', '[[:alpha:]]|_') as numbers from dual;

which will return "12345569".

also you can use this one:

select regexp_replace('stack12345overflow569', '[^0-9]', '') as numbers,
       regexp_replace('Stack12345OverFlow569', '[^a-z and ^A-Z]', '') as characters
from dual

which will return "12345569" for numbers and "StackOverFlow" for characters.

Make a HttpURLConnection to some site like www.whatismyip.com and parse that :-)

In my experience, using System.gc() is effectively a platform-specific form of optimization (where "platform" is the combination of hardware architecture, OS, JVM version and possible more runtime parameters such as RAM available), because its behaviour, while roughly predictable on a specific platform, can (and will) vary considerably between platforms.

Yes, there are situations where System.gc() will improve (perceived) performance. On example is if delays are tolerable in some parts of your app, but not in others (the game example cited above, where you want GC to happen at the start of a level, not during the level).

However, whether it will help or hurt (or do nothing) is highly dependent on the platform (as defined above).

So I think it is valid as a last-resort platform-specific optimization (i.e. if other performance optimizations are not enough). But you should never call it just because you believe it might help(without specific benchmarks), because chances are it will not.

How about $array_name = array(); ?

You can use std::getline :

#include <fstream>
#include <string>

int main() 
{ 
    std::ifstream file("Read.txt");
    std::string str; 
    while (std::getline(file, str))
    {
        // Process str
    }
}

Also note that it's better you just construct the file stream with the file names in it's constructor rather than explicitly opening (same goes for closing, just let the destructor do the work).

Further documentation about std::string::getline() can be read at CPP Reference.

Probably the easiest way to read a whole text file is just to concatenate those retrieved lines.

std::ifstream file("Read.txt");
std::string str;
std::string file_contents;
while (std::getline(file, str))
{
  file_contents += str;
  file_contents.push_back('\n');
}  

Open up Windows' System Properties from the control panel and hunt down the environment variables section:

• Add a JAVA_HOME entry pointing to the directory where the JDK is installed (e.g. C:\Program Files\Java\jre6)
• Find the Path entry and add the following onto the end ;%JAVA_HOME%\bin
• OK the changes
• Restart eclipse so that it is aware of the new environment

Most Java tools will now be able to find your Java installation either by using the JAVA_HOME environment variable or by looking for java.exe / javaw.exe in the Path environment variable.

It does this by default, you just need to look into the project's /dist folder.

To schedule a cron job every 5 minutes, you need to define the cron settings like this:

*/5 * * * *

Use router.back() directly to go back/route-back programmatic on vue-router.

Deleting .gradle as suggested by Suragch wasn't enough for me. Additionally, I had to perform a Build > Clean Project.

Note that, in order to see .gradle, you need to switch to the "Project" view in the navigator on the top left:

Generally speaking an HTTP POST assumes the content of the body contains a series of key/value pairs that are created (most usually) by a form on the HTML side. You don't set the values using setHeader, as that won't place them in the content body.

So with your second test, the problem that you have here is that your client is not creating multiple key/value pairs, it only created one and that got mapped by default to the first argument in your method.

There are a couple of options you can use. First, you could change your method to accept only one input parameter, and then pass in a JSON string as you do in your second test. Once inside the method, you then parse the JSON string into an object that would allow access to the fields.

Another option is to define a class that represents the fields of the input types and make that the only input parameter. For example

class MyInput
{
    String str1;
    String str2;

    public MyInput() { }
      //  getters, setters
 }

@POST
@Consumes({"application/json"})
@Path("create/")
public void create(MyInput in){
System.out.println("value 1 = " + in.getStr1());
System.out.println("value 2 = " + in.getStr2());
}

Depending on the REST framework you are using it should handle the de-serialization of the JSON for you.

The last option is to construct a POST body that looks like:

str1=value1&str2=value2

then add some additional annotations to your server method:

public void create(@QueryParam("str1") String str1, 
                  @QueryParam("str2") String str2)

@QueryParam doesn't care if the field is in a form post or in the URL (like a GET query).

If you want to continue using individual arguments on the input then the key is generate the client request to provide named query parameters, either in the URL (for a GET) or in the body of the POST.

Dump a table using a where query:

mysqldump mydatabase mytable --where="mycolumn = myvalue" --no-create-info > data.sql

Dump an entire table:

mysqldump mydatabase mytable > data.sql

Notes:

• Replace mydatabase, mytable, and the where statement with your desired values.
• By default, mysqldump will include DROP TABLE and CREATE TABLE statements in its output. Therefore, if you wish to not delete all the data in your table when restoring from the saved data file, make sure you use the --no-create-info option.
• You may need to add the appropriate -h, -u, and -p options to the example commands above in order to specify your desired database host, user, and password, respectively.

Colin is correct that a profile should be used. However, his answer hard-codes the target directory in the profile. An alternate solution would be to add a profile like this:

    <profile>
        <id>alternateBuildDir</id>
        <activation>
            <property>
                <name>alt.build.dir</name>
            </property>
        </activation>
        <build>
            <directory>${alt.build.dir}</directory>
        </build>
    </profile>

Doing so would have the effect of changing the build directory to whatever is given by the alt.build.dir property, which can be given in a POM, in the user's settings, or on the command line. If the property is not present, the compilation will happen in the normal target directory.

You can also override onContentChanged() which is among others fired when setContentView() has been called.

You can query the whole tag, or just the specific value. Here I use a wildcard for the xml namespaces.

declare @myDoc xml
set @myDoc = 
'<Root xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://stackoverflow.com">
    <Child>my value</Child>
 </Root>'

select @myDoc.query('/*:Root/*:Child') -- whole tag
select @myDoc.value('(/*:Root/*:Child)[1]', 'varchar(255)') -- only value

The accepted answer is not correct.

isset() is NOT equivalent to !empty().

You will create some rather unpleasant and hard to debug bugs if you go down this route. e.g. try running this code:

<?php

$s = '';

print "isset: '" . isset($s) . "'. ";
print "!empty: '" . !empty($s) . "'";

?>

https://3v4l.org/J4nBb

Just to give an option, writing a dictionary to csv file could also be done with the pandas package. With the given example it could be something like this:

mydict = {'key1': 'a', 'key2': 'b', 'key3': 'c'}

import pandas as pd

(pd.DataFrame.from_dict(data=mydict, orient='index')
   .to_csv('dict_file.csv', header=False))

The main thing to take into account is to set the 'orient' parameter to 'index' inside the from_dict method. This lets you choose if you want to write each dictionary key in a new row.

Additionaly, inside the to_csv method the header parameter is set to False just to have only the dictionary elements without annoying rows. You can always set column and index names inside the to_csv method.

Your output would look like this:

key1,a
key2,b
key3,c

If instead you want the keys to be the column's names, just use the default 'orient' parameter that is 'columns', as you could check in the documentation links.

Those who are using Java 7.0 or below version can refer the code which I used here and it works.

public class WaitTest {

    private final Lock lock = new ReentrantLock();
    private final Condition condition = lock.newCondition();

    public void waitHere(long waitTime) {
        System.out.println("wait started...");
        lock.lock();
        try {
            condition.await(waitTime, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        lock.unlock();
        System.out.println("wait ends here...");
    }

    public static void main(String[] args) {
        //Your Code
        new WaitTest().waitHere(10);
        //Your Code
    }

}

Method 1:USE PDO query method

$stmt = $db->query('SELECT id FROM Employee where name ="'.$name.'"');
$results = $stmt->fetchAll(PDO::FETCH_ASSOC);

Getting Row Count

$stmt = $db->query('SELECT id FROM Employee where name ="'.$name.'"');
$row_count = $stmt->rowCount();
echo $row_count.' rows selected';

Method 2: Statements With Parameters

$stmt = $db->prepare("SELECT id FROM Employee WHERE name=?");
$stmt->execute(array($name));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

Method 3:Bind parameters

$stmt = $db->prepare("SELECT id FROM Employee WHERE name=?");
$stmt->bindValue(1, $name, PDO::PARAM_STR);
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

**bind with named parameters**
$stmt = $db->prepare("SELECT id FROM Employee WHERE name=:name");
$stmt->bindValue(':name', $name, PDO::PARAM_STR);
$stmt->execute();
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

or
$stmt = $db->prepare("SELECT id FROM Employee WHERE name=:name");
$stmt->execute(array(':name' => $name));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);

Want to know more look at this link

Maybe the author of that unnamed book has read that a > 0 runs faster than a >= 1 and thinks that is true universally.

But it is because a 0 is involved (because CMP can, depending on the architecture, replaced e.g. with OR) and not because of the <.

This may be a tangent.... but if you need to put a numerical value as an integer (that is too big to be an integer) into a serializer (JSON, etc.) then you probably want "BigInterger"

Example:

value is a string - 7515904334

We need to represent it as a numerical in a Json message:

{
    "contact_phone":"800220-3333",
    "servicer_id":7515904334,
    "servicer_name":"SOME CORPORATION"
}

We can't print it or we'll get this:

{
    "contact_phone":"800220-3333",
    "servicer_id":"7515904334",
    "servicer_name":"SOME CORPORATION"
}

Adding the value to the node like this produces the desired outcome:

BigInteger.valueOf(Long.parseLong(value, 10))

I'm not sure this is really on-topic, but since this question was my top hit when I searched for my solution, I thought I would share here for the benefit of others, lie me, who search poorly. :D

Use the built-in sp_msforeachtable stored procedure.

To disable all constraints:

EXEC sp_msforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT ALL";

To enable all constraints:

EXEC sp_msforeachtable "ALTER TABLE ? WITH CHECK CHECK CONSTRAINT ALL";

To drop all the tables:

EXEC sp_msforeachtable "DROP TABLE ?";

Here is the code in PHP to upload an image, save it to the database, display it and save it to a folder.

1. At first, HTML code for the form:

   <div class="upload">
       <form method="POST" enctype="multipart/form-data" id="imageform">
          <br>
          <input type="file" name="image" id="photoimg" >
          <br><br>
          <input type="submit" name="submit" value="UPLOAD">
      </form>
   </div>
   

2. The PHP code

create database and table as you wish.(only required 2 fields) In the table, id(INT) 255 primary key AUTO INCREMENT and your image row(anyname) (MEDIUMBLOB)

<?php

if(isset($_POST['submit'])){
    if(@getimagesize($_FILES['image']['tmp_name']) == FALSE){
        echo "<span class='image_select'>please select an image</span>";

    }
    else{
        $image = addslashes($_FILES['image']['tmp_name']);
        $name  = addslashes($_FILES['image']['name']);
        $image = file_get_contents($image);
        $image = base64_encode($image);
        saveimage($name,$image);
        $uploaddir = 'profile/'; //this is your local directory
        $uploadfile = $uploaddir . basename($_FILES['image']['name']);

        echo "<p>";

            if (move_uploaded_file($_FILES['image']['tmp_name'], $uploadfile)) {// file uploaded and moved} 
            else { //uploaded but not moved}

        echo "</p>";



    }

}

displayimage();
function saveimage($name,$image)
{
    $con = mysql_connect("localhost","root","your database password");
    mysql_select_db("your database",$con);
    $qry  = "UPDATE your_table SET your_row_name='$image'";
        $result = @mysql_query($qry,$con);

    if($result)
    {
        echo "<span class='uploaded'>IMAGE UPLOADED</span>";

    }
    else
    {
        echo "<span class='upload_failed'>IMAGE NOT UPLOADED</span>";

    }
}
function displayimage()
{
    $con = mysql_connect("localhost","root","your_password");
    mysql_select_db("your_database",$con);
    $qry  = "select * from your_table";
    $result = mysql_query($qry,$con);

    while($row  = mysql_fetch_array($result))
    {
        echo '<img class="image" src="data:image;base64,'.$row[1].'">';

    }



    mysql_close($con);
}
?>

Solution that summarizes all working parts of existing answers and comments including column header templates:

View:

<ListView x:Class="MyNamspace.MyListView"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300"
             ItemsSource="{Binding Items}"
             GridViewColumnHeader.Click="ListViewColumnHeaderClick">
    <ListView.Resources>

        <Style TargetType="Grid" x:Key="HeaderGridStyle">
            <Setter Property="Height" Value="20" />
        </Style>

        <Style TargetType="TextBlock" x:Key="HeaderTextBlockStyle">
            <Setter Property="Margin" Value="5,0,0,0" />
            <Setter Property="VerticalAlignment" Value="Center" />
        </Style>

        <Style TargetType="Path" x:Key="HeaderPathStyle">
            <Setter Property="StrokeThickness" Value="1" />
            <Setter Property="Fill" Value="Gray" />
            <Setter Property="Width" Value="20" />
            <Setter Property="HorizontalAlignment" Value="Center" />
            <Setter Property="Margin" Value="5,0,5,0" />
            <Setter Property="SnapsToDevicePixels" Value="True" />
        </Style>

        <DataTemplate x:Key="HeaderTemplateDefault">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

        <DataTemplate x:Key="HeaderTemplateArrowUp">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <Path Data="M 7,3 L 13,3 L 10,0 L 7,3" Style="{StaticResource HeaderPathStyle}" />
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

        <DataTemplate x:Key="HeaderTemplateArrowDown">
            <Grid Style="{StaticResource HeaderGridStyle}">
                <Path Data="M 7,0 L 10,3 L 13,0 L 7,0"  Style="{StaticResource HeaderPathStyle}" />
                <TextBlock Text="{Binding }" Style="{StaticResource HeaderTextBlockStyle}" />
            </Grid>
        </DataTemplate>

    </ListView.Resources>

    <ListView.View>
        <GridView ColumnHeaderTemplate="{StaticResource HeaderTemplateDefault}">

            <GridViewColumn Header="Name" DisplayMemberBinding="{Binding NameProperty}" />
            <GridViewColumn Header="Type" Width="45" DisplayMemberBinding="{Binding TypeProperty}"/>

            <!-- ... -->

        </GridView>
    </ListView.View>
</ListView>

Code Behinde:

public partial class MyListView : ListView
{
    GridViewColumnHeader _lastHeaderClicked = null;

    public MyListView()
    {
        InitializeComponent();
    }

    private void ListViewColumnHeaderClick(object sender, RoutedEventArgs e)
    {
        GridViewColumnHeader headerClicked = e.OriginalSource as GridViewColumnHeader;

        if (headerClicked == null)
            return;

        if (headerClicked.Role == GridViewColumnHeaderRole.Padding)
            return;

        var sortingColumn = (headerClicked.Column.DisplayMemberBinding as Binding)?.Path?.Path;
        if (sortingColumn == null)
            return;

        var direction = ApplySort(Items, sortingColumn);

        if (direction == ListSortDirection.Ascending)
        {
            headerClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateArrowUp"] as DataTemplate;
        }
        else
        {
            headerClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateArrowDown"] as DataTemplate;
        }

        // Remove arrow from previously sorted header
        if (_lastHeaderClicked != null && _lastHeaderClicked != headerClicked)
        {
            _lastHeaderClicked.Column.HeaderTemplate =
                Resources["HeaderTemplateDefault"] as DataTemplate;
        }

        _lastHeaderClicked = headerClicked;
    }


    public static ListSortDirection ApplySort(ICollectionView view, string propertyName)
    {
        ListSortDirection direction = ListSortDirection.Ascending;
        if (view.SortDescriptions.Count > 0)
        {
            SortDescription currentSort = view.SortDescriptions[0];
            if (currentSort.PropertyName == propertyName)
            {
                if (currentSort.Direction == ListSortDirection.Ascending)
                    direction = ListSortDirection.Descending;
                else
                    direction = ListSortDirection.Ascending;
            }
            view.SortDescriptions.Clear();
        }
        if (!string.IsNullOrEmpty(propertyName))
        {
            view.SortDescriptions.Add(new SortDescription(propertyName, direction));
        }
        return direction;
    }
}

Very common.

do_stuff(thingy) {
    lock(thingy);

    foo;
    if (foo failed) {
        status = -EFOO;
        goto OUT;
    }

    bar;
    if (bar failed) {
        status = -EBAR;
        goto OUT;
    }

    do_stuff_to(thingy);

OUT:
    unlock(thingy);
    return status;
}

The only case I ever use goto is for jumping forwards, usually out of blocks, and never into blocks. This avoids abuse of do{}while(0) and other constructs which increase nesting, while still maintaining readable, structured code.

Try and retrieve the text property of the link button in the code behind:

protected void ENameLinkBtn_Click (object sender, EventArgs e)
{
   string val = ((LinkButton)sender).Text
}

This snippet i have used in my application to encode the URL so may this can help you to do the same.

Function URLEncode(ByVal str As String) As String
        Dim intLen As Integer
        Dim x As Integer
        Dim curChar As Long
        Dim newStr As String
        intLen = Len(str)
        newStr = ""

        For x = 1 To intLen
            curChar = Asc(Mid$(str, x, 1))

            If (curChar < 48 Or curChar > 57) And _
                (curChar < 65 Or curChar > 90) And _
                (curChar < 97 Or curChar > 122) Then
                                newStr = newStr & "%" & Hex(curChar)
            Else
                newStr = newStr & Chr(curChar)
            End If
        Next x

        URLEncode = newStr
    End Function

You can use following approach for API method to get results from specific day:

# [HTTP GET]
getMeals: (req, res) ->
  options = {}
  # eg. api/v1/meals?date=Tue+Jan+13+2015+00%3A00%3A00+GMT%2B0100+(CET)
  if req.query.date?
    date = new Date req.query.date
    date.setHours 0, 0, 0, 0
    endDate = new Date date
    endDate.setHours 23, 59, 59, 59
    options.date =
      $lt: endDate
      $gte: date

  Meal.find options, (err, meals) ->
      if err or not meals
        handleError err, meals, res
      else
        res.json createJSON meals, null, 'meals'

Pass an array to the function, instead of individual parameters and use null coalescing operator (PHP 7+).

Below, I'm passing an array with 2 items. Inside the function, I'm checking if value for item1 is set, if not assigned default vault.

$args = ['item2' => 'item2',
        'item3' => 'value3'];

    function function_name ($args) {
        isset($args['item1']) ? $args['item1'] : 'default value';
    }

<table id="game_table" border="1">

and Jquery

var i;
for (i = 0; ii < 10; i++) 
{

        var tr = $("<tr></tr>")
        var ii;
        for (ii = 0; ii < 10; ii++) 
        {
        tr.append(`<th>Firstname</th>`)
        }

$('#game_table').append(tr)
}

I would always use A (rather than relying on the compiler) and might also rewrite to:

for(int i=0, double intermediateResult=0; i<1000; i++){
    intermediateResult = i;
    System.out.println(intermediateResult);
}

This still restricts intermediateResult to the loop's scope, but doesn't redeclare during each iteration.

<%= f.select :email_provider, ["gmail","yahoo","msn"]%>

Using onunload allows you to display messages, but will not interrupt the navigation (because it is too late). However, using onbeforeunload will interrupt navigation:

window.onbeforeunload = function() {
  return "";
}

Note: An empty string is returned because newer browsers provide a message such as "Any unsaved changes will be lost" that cannot be overridden.

In older browsers you could specify the message to display in the prompt:

window.onbeforeunload = function() {
  return "Are you sure you want to navigate away?";
}

diplay:flex; is another alternative answer that you can add to all above answers which is supported in all modern browsers.

#block_container {_x000D_
  display: flex;_x000D_
  justify-content: center;_x000D_
}

<div id="block_container">_x000D_
  <div id="bloc1">Copyright &copy; All Rights Reserved.</div>_x000D_
  <div id="bloc2"><img src="..."></div>_x000D_
</div>

I used @tsds way but by only using the split function.

var str = 'one:two;three';    
str.split(':')[1].split(';')[0] // returns 'two'

word of caution: if therre is no ":" in the string accessing '1' index of the array will throw an error! str.split(':')[1]

therefore @tsds way is safer if there is uncertainty

str.split(':').pop().split(';')[0]

a.sort(function(a,b){return a - b})

These can be confusing.... check this link out.

hashCode() method is not for providing a unique identifier for an object. It rather digests the object's state (i.e. values of member fields) to a single integer. This value is mostly used by some hash based data structures like maps and sets to effectively store and retrieve objects.

If you need an identifier for your objects, I recommend you to add your own method instead of overriding hashCode. For this purpose, you can create a base interface (or an abstract class) like below.

public interface IdentifiedObject<I> {
    I getId();
}

Example usage:

public class User implements IdentifiedObject<Integer> {
    private Integer studentId;

    public User(Integer studentId) {
        this.studentId = studentId;
    }

    @Override
    public Integer getId() {
        return studentId;
    }
}

Given the lack of information regarding the original image size, specifying percentages for the width and height would result in highly erratic results. If you are trying to ensure that an image will fit within a specific location on your page then you'll need to use some server side code to manage that rescaling.

When debugging lines of code, here are the usual scenarios:

• (Step Into) A method is about to be invoked, and you want to debug into the code of that method, so the next step is to go into that method and continue debugging step-by-step.
• (Step Over) A method is about to be invoked, but you're not interested in debugging this particular invocation, so you want the debugger to execute that method completely as one entire step.
• (Step Return) You're done debugging this method step-by-step, and you just want the debugger to run the entire method until it returns as one entire step.
• (Resume) You want the debugger to resume "normal" execution instead of step-by-step
• (Line Breakpoint) You don't care how it got there, but if execution reaches a particular line of code, you want the debugger to temporarily pause execution there so you can decide what to do.

Eclipse has other advanced debugging features, but these are the basic fundamentals.

See also

• Free video tutorial: Eclipse and Java: Using the Debugger
• IBM/DeveloperWorks/Debugging with the Eclipse Platform
• IBM/DeveloperWorks/Learn the essentials of debugging

This answer similar to others, but using preferred stringr::str_detect and dplyr rownames_to_column.

library(tidyverse)

mtcars %>% 
  rownames_to_column("type") %>% 
  filter(stringr::str_detect(type, 'Toyota|Mazda') )

#>             type  mpg cyl  disp  hp drat    wt  qsec vs am gear carb
#> 1      Mazda RX4 21.0   6 160.0 110 3.90 2.620 16.46  0  1    4    4
#> 2  Mazda RX4 Wag 21.0   6 160.0 110 3.90 2.875 17.02  0  1    4    4
#> 3 Toyota Corolla 33.9   4  71.1  65 4.22 1.835 19.90  1  1    4    1
#> 4  Toyota Corona 21.5   4 120.1  97 3.70 2.465 20.01  1  0    3    1

Created on 2018-06-26 by the reprex package (v0.2.0).

Here is a simple way i did it in my project.

lets say you need to use clipboard.min.js and for the sake of the example lets say that inside clipboard.min.js there is a function that called test2().

in order to use test2() function you need:

1. make a reference to the .js file inside you index.html.
2. import clipboard.min.js to your component.
3. declare a variable that will use you to call the function.

here are only the relevant parts from my project (see the comments):

index.html:

<!DOCTYPE html>
<html>
<head>
    <title>Angular QuickStart</title>
    <base href="/src/">
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="styles.css">

    <!-- Polyfill(s) for older browsers -->
    <script src="/node_modules/core-js/client/shim.min.js"></script>


    <script src="/node_modules/zone.js/dist/zone.js"></script>
    <script src="/node_modules/systemjs/dist/system.src.js"></script>

    <script src="systemjs.config.js"></script>
    <script>
        System.import('main.js').catch(function (err) { console.error(err); });
    </script>

    <!-- ************ HERE IS THE REFERENCE TO clipboard.min.js -->
    <script src="app/txtzone/clipboard.min.js"></script>
</head>

<body>
    <my-app>Loading AppComponent content here ...</my-app>
</body>
</html>

app.component.ts:

import '../txtzone/clipboard.min.js';
declare var test2: any; // variable as the name of the function inside clipboard.min.js

@Component({
    selector: 'txt-zone',
    templateUrl: 'app/txtzone/Txtzone.component.html',
    styleUrls: ['app/txtzone/TxtZone.css'],
})



export class TxtZoneComponent implements AfterViewInit {

    // call test2
    callTest2()
    {   
        new test2(); // the javascript function will execute
    }

}

Since Ruby 2.5.0 you can use Hash#transform_keys or Hash#transform_keys!.

{'a' => 1, 'b' => 2}.transform_keys(&:to_sym) #=> {:a => 1, :b => 2}

The .first() will help here

$('p:contains("hello")').first().css('font-weight', 'bold');

On Linux Fedora30 several versions of the full java JDK are available, specifically package names:

java-1.8.0-openjdk-devel.x86_64 
java-11-openjdk-devel.x86_64

Once installed, they are found in: /usr/lib/jvm

To select the location/directory of a full development JDK (which is different from the simpler runtime only JRE) look for entries:

ls -ld java*openjdk*

Here are two good choices, which are links to specific versions, where you will have to select the version:

/usr/lib/jvm/java-1.8.0-openjdk
/usr/lib/jvm/java-11-openjdk

From the answer here, you can use the time module to convert from utc to the local time set in your computer:

utc_time = time.strptime("2018-12-13T10:32:00.000", "%Y-%m-%dT%H:%M:%S.%f")
utc_seconds = calendar.timegm(utc_time)
local_time = time.localtime(utc_seconds)

Number of parameters is the amount of numbers that can be changed in the model. Mathematically this means number of dimensions of your optimization problem. For you as a programmer, each of this parameters is a floating point number, which typically takes 4 bytes of memory, allowing you to predict the size of this model once saved.

This formula for this number is different for each neural network layer type, but for Dense layer it is simple: each neuron has one bias parameter and one weight per input: N = n_neurons * ( n_inputs + 1).

When just a single result is needed, then no loop should be used. Just fetch the row right away.

• In case you need to fetch the entire row into associative array:

    $row = $result->fetch_assoc();
  

• in case you need just a single value

    $row = $result->fetch_row();
    $value = $row[0] ?? false;
  

The last example will return the first column from the first returned row, or false if no row was returned. It can be also shortened to a single line,

$value = $result->fetch_row()[0] ?? false;

Below are complete examples for different use cases

Variables to be used in the query

When variables are to be used in the query, then a prepared statement must be used. For example, given we have a variable $id:

$query = "SELECT ssfullname, ssemail FROM userss WHERE ud=?";
$stmt = $conn->prepare($query);
$stmt->bind_param("s", $id);
$stmt->execute()
$result = $stmt->get_result();
$row = $result->fetch_assoc();

// in case you need just a single value
$query = "SELECT count(*) FROM userss WHERE id=?";
$stmt = $conn->prepare($query);
$stmt->bind_param("s", $id);
$stmt->execute()
$result = $stmt->get_result();
$value = $result->fetch_row()[0] ?? false;

The detailed explanation of the above process can be found in my article. As to why you must follow it is explained in this famous question

No variables in the query

In your case, where no variables to be used in the query, you can use the query() method:

$query = "SELECT ssfullname, ssemail FROM userss ORDER BY ssid";
$result = $conn->query($query);
// in case you need an array
$row = $result->fetch_assoc();
// OR in case you need just a single value
$value = $result->fetch_row()[0] ?? false;

By the way, although using raw API while learning is okay, consider using some database abstraction library or at least a helper function in the future:

// using a helper function
$sql = "SELECT email FROM users WHERE id=?";
$value = prepared_select($conn, $sql, [$id])->fetch_row[0] ?? false;

// using a database helper class
$email = $db->getCol("SELECT email FROM users WHERE id=?", [$id]);

As you can see, although a helper function can reduce the amount of code, a class' method could encapsulate all the repetitive code inside, making you to write only meaningful parts - the query, the input parameters and the desired result format (in the form of the method's name).

Use this overload (RenderPartialExtensions.RenderPartial on MSDN):

public static void RenderPartial(
    this HtmlHelper htmlHelper,
    string partialViewName,
    Object model
)

so:

@{Html.RenderPartial(
    "FullName",
    new { firstName = model.FirstName, lastName = model.LastName});
}

its a matter of speed. using the iterator accesses the elements faster. a similar question was answered here:

What's faster, iterating an STL vector with vector::iterator or with at()?

Edit: speed of access varies with each cpu and compiler

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

void main()
{
     char ch;
     int x;
     cin >> ch;
     x = char (ar[1]);
     cout << x;
}

apt-get install php7.3-mbstring solved the issue on ubuntu, php version is php-fpm 7.3

HTML doesn't recognize the & but it will recognize & because it is equal to & in HTML

I looked over this post someone had made: http://www.webmasterworld.com/forum21/8851.htm

I assume your header is fixed because you want it to stay at the top of the page even when the user scrolls down, but you dont want it covering the container. Setting position: fixed removes the element from the linear layout of the page however, so you would need to either set the top margin of the "next" element to be the same as the height of the header, or (if for whatever reason you don't want to do that), put a placeholder element which takes up space in the page flow, but would appear underneath where the header shows up.

There's no difference between list implementations in both of your examples. There's however a difference in a way you can further use variable myList in your code.

When you define your list as:

List myList = new ArrayList();

you can only call methods and reference members that are defined in the List interface. If you define it as:

ArrayList myList = new ArrayList();

you'll be able to invoke ArrayList-specific methods and use ArrayList-specific members in addition to those whose definitions are inherited from List.

Nevertheless, when you call a method of a List interface in the first example, which was implemented in ArrayList, the method from ArrayList will be called (because the List interface doesn't implement any methods).

That's called polymorphism. You can read up on it.

Add into ~/.Rprofile

local({r <- getOption("repos")
    r["CRAN"] <- "mirror_site"  #for example, https://mirrors.ustc.edu.cn/CRAN/
    options(repos=r)
    options(BioC_mirror="bioc_mirror_site") #if using biocLite
})

   while running:
        lenli = len(li)
        for i, elem in enumerate(li):
            thiselem = elem
            nextelem = li[(i+1)%lenli] # This line is vital

How about something like: Using HTML Agility Pack

HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(@"<html><body><p><table id=""foo""><tr><th>hello</th></tr><tr><td>world</td></tr></table></body></html>");
foreach (HtmlNode table in doc.DocumentNode.SelectNodes("//table")) {
    Console.WriteLine("Found: " + table.Id);
    foreach (HtmlNode row in table.SelectNodes("tr")) {
        Console.WriteLine("row");
        foreach (HtmlNode cell in row.SelectNodes("th|td")) {
            Console.WriteLine("cell: " + cell.InnerText);
        }
    }
}

Note that you can make it prettier with LINQ-to-Objects if you want:

var query = from table in doc.DocumentNode.SelectNodes("//table").Cast<HtmlNode>()
            from row in table.SelectNodes("tr").Cast<HtmlNode>()
            from cell in row.SelectNodes("th|td").Cast<HtmlNode>()
            select new {Table = table.Id, CellText = cell.InnerText};

foreach(var cell in query) {
    Console.WriteLine("{0}: {1}", cell.Table, cell.CellText);
}

You can change the array type without converting like this:

a.dtype = numpy.float32

but first you have to change all the integers to something that will be interpreted as the corresponding float. A very slow way to do this would be to use python's struct module like this:

def toi(i):
    return struct.unpack('i',struct.pack('f',float(i)))[0]

...applied to each member of your array.

But perhaps a faster way would be to utilize numpy's ctypeslib tools (which I am unfamiliar with)

- edit -

Since ctypeslib doesnt seem to work, then I would proceed with the conversion with the typical numpy.astype method, but proceed in block sizes that are within your memory limits:

a[0:10000] = a[0:10000].astype('float32').view('int32')

...then change the dtype when done.

Here is a function that accomplishes the task for any compatible dtypes (only works for dtypes with same-sized items) and handles arbitrarily-shaped arrays with user-control over block size:

import numpy

def astype_inplace(a, dtype, blocksize=10000):
    oldtype = a.dtype
    newtype = numpy.dtype(dtype)
    assert oldtype.itemsize is newtype.itemsize
    for idx in xrange(0, a.size, blocksize):
        a.flat[idx:idx + blocksize] = \
            a.flat[idx:idx + blocksize].astype(newtype).view(oldtype)
    a.dtype = newtype

a = numpy.random.randint(100,size=100).reshape((10,10))
print a
astype_inplace(a, 'float32')
print a