You were on the right track with response.getOutputStream(), but you're not using its output anywhere in your code. Essentially what you need to do is to stream the PDF file's bytes directly to the output stream and flush the response. In Spring you can do it like this:

@RequestMapping(value="/getpdf", method=RequestMethod.POST)
public ResponseEntity<byte[]> getPDF(@RequestBody String json) {
    // convert JSON to Employee 
    Employee emp = convertSomehow(json);

    // generate the file
    PdfUtil.showHelp(emp);

    // retrieve contents of "C:/tmp/report.pdf" that were written in showHelp
    byte[] contents = (...);

    HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.APPLICATION_PDF);
    // Here you have to set the actual filename of your pdf
    String filename = "output.pdf";
    headers.setContentDispositionFormData(filename, filename);
    headers.setCacheControl("must-revalidate, post-check=0, pre-check=0");
    ResponseEntity<byte[]> response = new ResponseEntity<>(contents, headers, HttpStatus.OK);
    return response;
}

Notes:

• use meaningful names for your methods: naming a method that writes a PDF document showHelp is not a good idea
• reading a file into a byte[]: example here
• I'd suggest adding a random string to the temporary PDF file name inside showHelp() to avoid overwriting the file if two users send a request at the same time

Gutch's code is close, but it'll only work right if:

• There are no annotations (links, fields, etc), no Document Structure/Marked Content, no bookmarks, no document-level script, etc, etc, etc...
• The page size happens to be A.4 (decent odds, but it won't work on any ol' PDF you happen to come across)
• You don't mind losing all the original document metadata (producer, creation date, possibly author/title/keywords), and maybe the document ID. You can't copy the creation date and doc ID unless you do some pretty deep hackery on iText itself).

The Approved Method is to do it the other way around. Open the existing document with a PdfStamper, and use the returned PdfContentByte from getOverContent() to write text (and whatever else you might need) directly to the page. No second document needed.

And you can use a ColumnText to handle layout and such for you... no need to get down and dirty with beginText(),setFontAndSize(),drawText(),drawText()...,endText().

This worked for me and includes using OutputStream:

PdfReader reader = new PdfReader(new RandomAccessFileOrArray(Request.MapPath("Template.pdf")), null);
    Rectangle size = reader.GetPageSizeWithRotation(1);
    using (Stream outStream = Response.OutputStream)
    {
        Document document = new Document(size);
        PdfWriter writer = PdfWriter.GetInstance(document, outStream);

        document.Open();
        try
        {
            PdfContentByte cb = writer.DirectContent;

            cb.BeginText();
            try
            {
                cb.SetFontAndSize(BaseFont.CreateFont(), 12);
                cb.SetTextMatrix(110, 110);
                cb.ShowText("aaa");
            }
            finally
            {
                cb.EndText();
            }

                PdfImportedPage page = writer.GetImportedPage(reader, 1);
                cb.AddTemplate(page, 0, 0);

        }
        finally
        {
            document.Close();
            writer.Close();
            reader.Close();
        }
    }

This links might be helpful to convert.

https://code.google.com/p/flying-saucer/

https://today.java.net/pub/a/today/2007/06/26/generating-pdfs-with-flying-saucer-and-itext.html

If it is a college Project, you can even go for these, http://pd4ml.com/examples.htm

Example is given to convert HTML to PDF

I have ended up using ABCPdf from webSupergoo. It works really well and for about $350 it has saved me hours and hours based on your comments above. Thanks again Daniel and Bratch for your comments.

You can trigger a newline by inserting Chunk.NEWLINE into your document. Here's an example.

public static void main(String args[]) {
    try {
        // create a new document
        Document document = new Document( PageSize.A4, 20, 20, 20, 20 );
        PdfWriter.getInstance( document, new FileOutputStream( "HelloWorld.pdf" ) );

        document.open();

        document.add( new Paragraph( "Hello, World!" ) );
        document.add( new Paragraph( "Hello, World!" ) );

        // add a couple of blank lines
        document.add( Chunk.NEWLINE );
        document.add( Chunk.NEWLINE );

        // add one more line with text
        document.add( new Paragraph( "Hello, World!" ) );

        document.close();
    }
    catch (Exception e) {
        e.printStackTrace();
    }
}

Below is a screen shot showing part of the PDF that the code above produces.

Use GSON library for that. Here is the sample code

List<String> foo = new ArrayList<String>();
foo.add("A");
foo.add("B");
foo.add("C");

String json = new Gson().toJson(foo );

Here is the maven dependency for Gson

<dependencies>
    <!--  Gson: Java to Json conversion -->
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.2.2</version>
        <scope>compile</scope>
    </dependency>
</dependencies>

Or you can directly download jar from here and put it in your class path

http://code.google.com/p/google-gson/downloads/detail?name=gson-1.0.jar&can=4&q=

To send Json to client you can use spring or in simple servlet add this code

response.getWriter().write(json);

ldapConnection is the server adres: ldap.example.com Ldap.Connection.Path is the path inside the ADS that you like to use insert in LDAP format.

OU=Your_OU,OU=other_ou,dc=example,dc=com

You start at the deepest OU working back to the root of the AD, then add dc=X for every domain section until you have everything including the top level domain

Now i miss a parameter to authenticate, this works the same as the path for the username

CN=username,OU=users,DC=example,DC=com

Introduction to LDAP

Just imagine you have a function but you don't want to restrict the number of parameter it takes. Example:

>>> import operator
>>> def multiply(*args):
...  return reduce(operator.mul, args)

Then you use this function like:

>>> multiply(1,2,3)
6

or

>>> numbers = [1,2,3]
>>> multiply(*numbers)
6

I was having the same problem while running bulk tests for an assignment. Turns out when I relocated some iostream operations (printing to console) from class constructor to a method in class it was solved.

I assume it was something to do with iostream manipulations in the constructor.

Here is the fix:

// Before
CommandPrompt::CommandPrompt() : afs(nullptr), aff(nullptr) {
    cout << "Some text I was printing.." << endl;
};


// After
CommandPrompt::CommandPrompt() : afs(nullptr), aff(nullptr) {

};

Please feel free to explain more what the error is behind the scenes since it goes beyond my cpp knowledge.

For primitive types (e.g. numbers, booleans, strings, etc.), there is no difference between toBe and toEqual; either one will work for 5, true, or "the cake is a lie".

To understand the difference between toBe and toEqual, let's imagine three objects.

var a = { bar: 'baz' },
    b = { foo: a },
    c = { foo: a };

Using a strict comparison (===), some things are "the same":

> b.foo.bar === c.foo.bar
true

> b.foo.bar === a.bar
true

> c.foo === b.foo
true

But some things, even though they are "equal", are not "the same", since they represent objects that live in different locations in memory.

> b === c
false

Jasmine's toBe matcher is nothing more than a wrapper for a strict equality comparison

expect(c.foo).toBe(b.foo)

is the same thing as

expect(c.foo === b.foo).toBe(true)

Don't just take my word for it; see the source code for toBe.

But b and c represent functionally equivalent objects; they both look like

{ foo: { bar: 'baz' } }

Wouldn't it be great if we could say that b and c are "equal" even if they don't represent the same object?

Enter toEqual, which checks "deep equality" (i.e. does a recursive search through the objects to determine whether the values for their keys are equivalent). Both of the following tests will pass:

expect(b).not.toBe(c);
expect(b).toEqual(c);

Hope that helps clarify some things.

1-liner, takes a XML string text and YourType as the expected object type. not very different from other answers, just compressed to 1 line:

var result =  (YourType)new XmlSerializer(typeof(YourType)).Deserialize(new StringReader(text));

Just thought I'd share my hacky solution with anyone who's discovering this problem now with embedded links within a string. It attempts to inline the links by rendering it dynamically with what ever string is fed into it.

Please feel free to tweak it to your needs. It's working for our purposes as such:

This is an example of how https://google.com would appear.

View it on Gist:

https://gist.github.com/Friendly-Robot/b4fa8501238b1118caaa908b08eb49e2

import React from 'react';
import { Linking, Text } from 'react-native';

export default function renderHyperlinkedText(string, baseStyles = {}, linkStyles = {}, openLink) {
  if (typeof string !== 'string') return null;
  const httpRegex = /http/g;
  const wwwRegex = /www/g;
  const comRegex = /.com/g;
  const httpType = httpRegex.test(string);
  const wwwType = wwwRegex.test(string);
  const comIndices = getMatchedIndices(comRegex, string);
  if ((httpType || wwwType) && comIndices.length) {
    // Reset these regex indices because `comRegex` throws it off at its completion. 
    httpRegex.lastIndex = 0;
    wwwRegex.lastIndex = 0;
    const httpIndices = httpType ? 
      getMatchedIndices(httpRegex, string) : getMatchedIndices(wwwRegex, string);
    if (httpIndices.length === comIndices.length) {
      const result = [];
      let noLinkString = string.substring(0, httpIndices[0] || string.length);
      result.push(<Text key={noLinkString} style={baseStyles}>{ noLinkString }</Text>);
      for (let i = 0; i < httpIndices.length; i += 1) {
        const linkString = string.substring(httpIndices[i], comIndices[i] + 4);
        result.push(
          <Text
            key={linkString}
            style={[baseStyles, linkStyles]}
            onPress={openLink ? () => openLink(linkString) : () => Linking.openURL(linkString)}
          >
            { linkString }
          </Text>
        );
        noLinkString = string.substring(comIndices[i] + 4, httpIndices[i + 1] || string.length);
        if (noLinkString) {
          result.push(
            <Text key={noLinkString} style={baseStyles}>
              { noLinkString }
            </Text>
          );
        }
      }
      // Make sure the parent `<View>` container has a style of `flexWrap: 'wrap'`
      return result;
    }
  }
  return <Text style={baseStyles}>{ string }</Text>;
}

function getMatchedIndices(regex, text) {
  const result = [];
  let match;
  do {
    match = regex.exec(text);
    if (match) result.push(match.index);
  } while (match);
  return result;
}

Look at the "Sprite Text" sample in the GLSurfaceView samples.

use np.split(..., axis=1):

Demo:

In [255]: df = pd.DataFrame(np.random.rand(5, 6), columns=list('abcdef'))

In [256]: df
Out[256]:
          a         b         c         d         e         f
0  0.823638  0.767999  0.460358  0.034578  0.592420  0.776803
1  0.344320  0.754412  0.274944  0.545039  0.031752  0.784564
2  0.238826  0.610893  0.861127  0.189441  0.294646  0.557034
3  0.478562  0.571750  0.116209  0.534039  0.869545  0.855520
4  0.130601  0.678583  0.157052  0.899672  0.093976  0.268974

In [257]: dfs = np.split(df, [4], axis=1)

In [258]: dfs[0]
Out[258]:
          a         b         c         d
0  0.823638  0.767999  0.460358  0.034578
1  0.344320  0.754412  0.274944  0.545039
2  0.238826  0.610893  0.861127  0.189441
3  0.478562  0.571750  0.116209  0.534039
4  0.130601  0.678583  0.157052  0.899672

In [259]: dfs[1]
Out[259]:
          e         f
0  0.592420  0.776803
1  0.031752  0.784564
2  0.294646  0.557034
3  0.869545  0.855520
4  0.093976  0.268974

np.split() is pretty flexible - let's split an original DF into 3 DFs at columns with indexes [2,3]:

In [260]: dfs = np.split(df, [2,3], axis=1)

In [261]: dfs[0]
Out[261]:
          a         b
0  0.823638  0.767999
1  0.344320  0.754412
2  0.238826  0.610893
3  0.478562  0.571750
4  0.130601  0.678583

In [262]: dfs[1]
Out[262]:
          c
0  0.460358
1  0.274944
2  0.861127
3  0.116209
4  0.157052

In [263]: dfs[2]
Out[263]:
          d         e         f
0  0.034578  0.592420  0.776803
1  0.545039  0.031752  0.784564
2  0.189441  0.294646  0.557034
3  0.534039  0.869545  0.855520
4  0.899672  0.093976  0.268974

The Google Closure library has functions to convert to/from UTF-8 and byte arrays. If you don't want to use the whole library, you can copy the functions from here. For completeness, the code to convert to a string to a UTF-8 byte array is:

goog.crypt.stringToUtf8ByteArray = function(str) {
  // TODO(user): Use native implementations if/when available
  var out = [], p = 0;
  for (var i = 0; i < str.length; i++) {
    var c = str.charCodeAt(i);
    if (c < 128) {
      out[p++] = c;
    } else if (c < 2048) {
      out[p++] = (c >> 6) | 192;
      out[p++] = (c & 63) | 128;
    } else if (
        ((c & 0xFC00) == 0xD800) && (i + 1) < str.length &&
        ((str.charCodeAt(i + 1) & 0xFC00) == 0xDC00)) {
      // Surrogate Pair
      c = 0x10000 + ((c & 0x03FF) << 10) + (str.charCodeAt(++i) & 0x03FF);
      out[p++] = (c >> 18) | 240;
      out[p++] = ((c >> 12) & 63) | 128;
      out[p++] = ((c >> 6) & 63) | 128;
      out[p++] = (c & 63) | 128;
    } else {
      out[p++] = (c >> 12) | 224;
      out[p++] = ((c >> 6) & 63) | 128;
      out[p++] = (c & 63) | 128;
    }
  }
  return out;
};

Sorry I am 9 years late, but this might work for the viewers in 2020.

So suppose you have a line like "Hello my name is Jello". Now you want to find the words that start with 'H' and end with 'o', with any number of characters in between. And we don't want lines we just want words. So for that we can use the expression:

grep "H[^ ]*o" file

This will return all the words. The way this works is that: It will allow all the characters instead of space character in between, this way we can avoid multiple words in the same line.

Now you can replace the space character with any other character you want. Suppose the initial line was "Hello-my-name-is-Jello", then you can get words using the expression:

grep "H[^-]*o" file

I think that's another case of git error messages being misleading. Usually when I've seen that error it's due to ssh problems. Did you add your public ssh key to your github account?

Edit: Also, the xinet.d forum post is referring to running the git-daemon as a service so that people could pull from your system. It's not necessary to run git-daemon to push to github.

Would something like this do what you need?

class Test(object):
    def _decorator(foo):
        def magic( self ) :
            print "start magic"
            foo( self )
            print "end magic"
        return magic

    @_decorator
    def bar( self ) :
        print "normal call"

test = Test()

test.bar()

This avoids the call to self to access the decorator and leaves it hidden in the class namespace as a regular method.

>>> import stackoverflow
>>> test = stackoverflow.Test()
>>> test.bar()
start magic
normal call
end magic
>>> 

edited to answer question in comments:

How to use the hidden decorator in another class

class Test(object):
    def _decorator(foo):
        def magic( self ) :
            print "start magic"
            foo( self )
            print "end magic"
        return magic

    @_decorator
    def bar( self ) :
        print "normal call"

    _decorator = staticmethod( _decorator )

class TestB( Test ):
    @Test._decorator
    def bar( self ):
        print "override bar in"
        super( TestB, self ).bar()
        print "override bar out"

print "Normal:"
test = Test()
test.bar()
print

print "Inherited:"
b = TestB()
b.bar()
print

Output:

Normal:
start magic
normal call
end magic

Inherited:
start magic
override bar in
start magic
normal call
end magic
override bar out
end magic

The > selector matches direct children only, not descendants.

You want

div.test th, td, caption {}

or more likely

div.test th, div.test td, div.test caption {}

Edit:

The first one says

  div.test th, /* any <th> underneath a <div class="test"> */
  td,          /* or any <td> anywhere at all */
  caption      /* or any <caption> */

Whereas the second says

  div.test th,     /* any <th> underneath a <div class="test"> */
  div.test td,     /* or any <td> underneath a <div class="test"> */
  div.test caption /* or any <caption> underneath a <div class="test">  */

In your original the div.test > th says any <th> which is a **direct** child of <div class="test">, which means it will match <div class="test"><th>this</th></div> but won't match <div class="test"><table><th>this</th></table></div>

Here's an implementation that traverses the list just once, collecting runs, then schedules the merges in the same way that mergesort does.

Complexity is O(n log m) where n is the number of items and m is the number of runs. Best case is O(n) (if the data is already sorted) and worst case is O(n log n) as expected.

It requires O(log m) temporary memory; the sort is done in-place on the lists.

(updated below. commenter one makes a good point that I should describe it here)

The gist of the algorithm is:

    while list not empty
        accumulate a run from the start of the list
        merge the run with a stack of merges that simulate mergesort's recursion
    merge all remaining items on the stack

Accumulating runs doesn't require much explanation, but it's good to take the opportunity to accumulate both ascending runs and descending runs (reversed). Here it prepends items smaller than the head of the run and appends items greater than or equal to the end of the run. (Note that prepending should use strict less-than to preserve sort stability.)

It's easiest to just paste the merging code here:

    int i = 0;
    for ( ; i < stack.size(); ++i) {
        if (!stack[i])
            break;
        run = merge(run, stack[i], comp);
        stack[i] = nullptr;
    }
    if (i < stack.size()) {
        stack[i] = run;
    } else {
        stack.push_back(run);
    }

Consider sorting the list (d a g i b e c f j h) (ignoring runs). The stack states proceed as follows:

    [ ]
    [ (d) ]
    [ () (a d) ]
    [ (g), (a d) ]
    [ () () (a d g i) ]
    [ (b) () (a d g i) ]
    [ () (b e) (a d g i) ]
    [ (c) (b e) (a d g i ) ]
    [ () () () (a b c d e f g i) ]
    [ (j) () () (a b c d e f g i) ]
    [ () (h j) () (a b c d e f g i) ]

Then, finally, merge all these lists.

Note that the number of items (runs) at stack[i] is either zero or 2^i and the stack size is bounded by 1+log2(nruns). Each element is merged once per stack level, hence O(n log m) comparisons. There's a passing similarity to Timsort here, though Timsort maintains its stack using something like a Fibonacci sequence where this uses powers of two.

Accumulating runs takes advantage of any already sorted data so that best case complexity is O(n) for an already sorted list (one run). Since we're accumulating both ascending and descending runs, runs will always be at least length 2. (This reduces the maximum stack depth by at least one, paying for the cost of finding the runs in the first place.) Worst case complexity is O(n log n), as expected, for data that is highly randomized.

(Um... Second update.)

Or just see wikipedia on bottom-up mergesort.

This answer didn't work for me, but I found the answer myself. No one, however, has posted my question. I'm too lazy to ask it and then answer it, so will just put it here.

This is for the following query:

data = Leaderboard.objects.filter(id=custom_user.id).values(
    'value1',
    'value2',
    'value3')

In template:

{% for dictionary in data %}
  {% for key, value in dictionary.items %}
    <p>{{ key }} : {{ value }}</p>
  {% endfor %}
{% endfor %}

It might be the problem with your version.

npm install -g @angular/cli@latest

The above run worked for me. Thanks!

Great suggestion! Here's my reusable take on it:

public class StreamUtils {

    public static <T> Stream<T> asStream(Iterator<T> sourceIterator) {
        return asStream(sourceIterator, false);
    }

    public static <T> Stream<T> asStream(Iterator<T> sourceIterator, boolean parallel) {
        Iterable<T> iterable = () -> sourceIterator;
        return StreamSupport.stream(iterable.spliterator(), parallel);
    }
}

And usage (make sure to statically import asStream):

List<String> aPrefixedStrings = asStream(sourceIterator)
                .filter(t -> t.startsWith("A"))
                .collect(toList());

An easy way to do this with some jQuery and straight JavaScript, just view your console in Chrome or Firefox to see the output...

  var queries = {};
  $.each(document.location.search.substr(1).split('&'),function(c,q){
    var i = q.split('=');
    queries[i[0].toString()] = i[1].toString();
  });
  console.log(queries);

You can't commit empty folders in git. If you want it to show up, you need to put something in it, even just an empty file.

For example, add an empty file called .gitkeep to the folder you want to keep, then in your .gitignore file write:

# exclude everything
somefolder/*

# exception to the rule
!somefolder/.gitkeep 

Commit your .gitignore and .gitkeep files and this should resolve your issue.

There are two common approaches. First, you can pass System.Type

object GetColumnValue(string columnName, Type type)
{
    // Here, you can check specific types, as needed:

    if (type == typeof(int)) { // ...

This would be called like: int val = (int)GetColumnValue(columnName, typeof(int));

The other option would be to use generics:

T GetColumnValue<T>(string columnName)
{
    // If you need the type, you can use typeof(T)...

This has the advantage of avoiding the boxing and providing some type safety, and would be called like: int val = GetColumnValue<int>(columnName);

Limit - 30 symbols. Username must contains only letters, numbers, periods and underscores.

In addition to Dan Williams' answer, if you want to add a Startup/Shutdown script, you need to be looking for Windows Settings under Computer Configuration. If you want to add a Logon/Logoff script, you need to be looking for Windows Settings under User Configuration.

So to reiterate what Dan said with this information included,

For Startup/Shutdown:

1. Run gpedit.msc (Local Policies)
2. Computer Configuration -> Windows Settings -> Scripts -> Startup or Shutdown -> Properties -> Add

For Logon/Logoff:

1. Run gpedit.msc (Local Policies)
2. User Configuration -> Windows Settings -> Scripts -> Logon or Logoff -> Properties -> Add

Source: http://technet.microsoft.com/en-us/library/cc739591(WS.10).aspx

Add a word boundary \b at the end of the regex:

/^(\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}\b/

if the space after ) is optional:

/^(\([0-9]{3}\)\s*|[0-9]{3}-)[0-9]{3}-[0-9]{4}\b/

You forgot @Service annotation in your service class.

Since the usage of lambda was asked in the context of sorted(), take a look at this as well https://wiki.python.org/moin/HowTo/Sorting/#Key_Functions

You forgot braces around the if block, and a semicolon between the statements in the block.

awk '{if($3 != 0) {a = ($3/$4); print $0, a;} else if($3==0) print $0, "-" }' file > out

You can also get value by name instead of id like this:

var message = $('textarea:input[name=message]').val();

Well I was looking for some details and didn't find any example. So I am posting a transposeImage function which, I hope, will help others who are looking for a direct way to rotate 90° without losing data:

IplImage* transposeImage(IplImage* image) {

    IplImage *rotated = cvCreateImage(cvSize(image->height,image->width),   
        IPL_DEPTH_8U,image->nChannels);
    CvPoint2D32f center;
    float center_val = (float)((image->width)-1) / 2;
    center.x = center_val;
    center.y = center_val;
    CvMat *mapMatrix = cvCreateMat( 2, 3, CV_32FC1 );        
    cv2DRotationMatrix(center, 90, 1.0, mapMatrix);
    cvWarpAffine(image, rotated, mapMatrix, 
        CV_INTER_LINEAR + CV_WARP_FILL_OUTLIERS, 
        cvScalarAll(0));      
    cvReleaseMat(&mapMatrix);

    return rotated;
}

Question : Why this?

float center_val = (float)((image->width)-1) / 2; 

Answer : Because it works :) The only center I found that doesn't translate image. Though if somebody has an explanation I would be interested.

i followed this sequence and it worked like a charm.

plt.axis("off")
fig=plt.imshow(image array,interpolation='nearest')
fig.axes.get_xaxis().set_visible(False)
fig.axes.get_yaxis().set_visible(False)
plt.savefig('destination_path.pdf',
    bbox_inches='tight', pad_inches=0, format='pdf', dpi=1200)

To my knowledge these are the rules for calling subroutines and functions in VBScript:

• When calling a subroutine or a function where you discard the return value don't use parenthesis
• When calling a function where you assign or use the return value enclose the arguments in parenthesis
• When calling a subroutine using the Call keyword enclose the arguments in parenthesis

Since you probably wont be using the Call keyword you only need to learn the rule that if you call a function and want to assign or use the return value you need to enclose the arguments in parenthesis. Otherwise, don't use parenthesis.

Here are some examples:

• WScript.Echo 1, "two", 3.3 - calling a subroutine

• WScript.Echo(1, "two", 3.3) - syntax error

• Call WScript.Echo(1, "two", 3.3) - keyword Call requires parenthesis

• MsgBox "Error" - calling a function "like" a subroutine

• result = MsgBox("Continue?", 4) - calling a function where the return value is used

• WScript.Echo (1 + 2)*3, ("two"), (((3.3))) - calling a subroutine where the arguments are computed by expressions involving parenthesis (note that if you surround a variable by parenthesis in an argument list it changes the behavior from call by reference to call by value)

• WScript.Echo(1) - apparently this is a subroutine call using parenthesis but in reality the argument is simply the expression (1) and that is what tends to confuse people that are used to other programming languages where you have to specify parenthesis when calling subroutines

• I'm not sure how to interpret your example, Randomize(). Randomize is a subroutine that accepts a single optional argument but even if the subroutine didn't have any arguments it is acceptable to call it with an empty pair of parenthesis. It seems that the VBScript parser has a special rule for an empty argument list. However, my advice is to avoid this special construct and simply call any subroutine without using parenthesis.

I'm quite sure that these syntactic rules applies across different versions of operating systems.

Yet another way of doing this in Javascript using inline onclick, IIFE, event and preventDefault():

<a href='#' onclick="(function(e){e.preventDefault();})(event)">Click Me</a>

1NF is the most basic of normal forms - each cell in a table must contain only one piece of information, and there can be no duplicate rows.

2NF and 3NF are all about being dependent on the primary key. Recall that a primary key can be made up of multiple columns. As Chris said in his response:

The data depends on the key [1NF], the whole key [2NF] and nothing but the key [3NF] (so help me Codd).

2NF

Say you have a table containing courses that are taken in a certain semester, and you have the following data:

|-----Primary Key----|               uh oh |
                                           V
CourseID | SemesterID | #Places  | Course Name  |
------------------------------------------------|
IT101    |   2009-1   | 100      | Programming  |
IT101    |   2009-2   | 100      | Programming  |
IT102    |   2009-1   | 200      | Databases    |
IT102    |   2010-1   | 150      | Databases    |
IT103    |   2009-2   | 120      | Web Design   |

This is not in 2NF, because the fourth column does not rely upon the entire key - but only a part of it. The course name is dependent on the Course's ID, but has nothing to do with which semester it's taken in. Thus, as you can see, we have duplicate information - several rows telling us that IT101 is programming, and IT102 is Databases. So we fix that by moving the course name into another table, where CourseID is the ENTIRE key.

Primary Key |

CourseID    |  Course Name |
---------------------------|
IT101       | Programming  |
IT102       | Databases    |
IT103       | Web Design   |

No redundancy!

3NF

Okay, so let's say we also add the name of the teacher of the course, and some details about them, into the RDBMS:

|-----Primary Key----|                           uh oh |
                                                       V
Course  |  Semester  |  #Places   |  TeacherID  | TeacherName  |
---------------------------------------------------------------|
IT101   |   2009-1   |  100       |  332        |  Mr Jones    |
IT101   |   2009-2   |  100       |  332        |  Mr Jones    |
IT102   |   2009-1   |  200       |  495        |  Mr Bentley  |
IT102   |   2010-1   |  150       |  332        |  Mr Jones    |
IT103   |   2009-2   |  120       |  242        |  Mrs Smith   |

Now hopefully it should be obvious that TeacherName is dependent on TeacherID - so this is not in 3NF. To fix this, we do much the same as we did in 2NF - take the TeacherName field out of this table, and put it in its own, which has TeacherID as the key.

 Primary Key |

 TeacherID   | TeacherName  |
 ---------------------------|
 332         |  Mr Jones    |
 495         |  Mr Bentley  |
 242         |  Mrs Smith   |

No redundancy!!

One important thing to remember is that if something is not in 1NF, it is not in 2NF or 3NF either. So each additional Normal Form requires everything that the lower normal forms had, plus some extra conditions, which must all be fulfilled.

Java definitively has no structs :) But what you describe here looks like a JavaBean kind of class.

You can get the file name, but you cannot get the full client file-system path.

Try to access to the value attribute of your file input on the change event.

Most browsers will give you only the file name, but there are exceptions like IE8 which will give you a fake path like: "C:\fakepath\myfile.ext" and older versions (IE <= 6) which actually will give you the full client file-system path (due its lack of security).

document.getElementById('fileInput').onchange = function () {
  alert('Selected file: ' + this.value);
};

I had the same problem, getting the message "ImportError: No module named numpy".

I'm also using anaconda and found out that I needed to add numpy to the ENV I was using. You can check the packages you have in your environment with the command:

conda list

So, when I used that command, numpy was not displayed. If that is your case, you just have to add it, with the command:

conda install numpy

After I did that, the error with the import numpy was gone

Here is the Kotlin Extension:

fun Activity.transparentStatusBar() {

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)
        window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION)
        window.statusBarColor = Color.TRANSPARENT

    } else
        window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS)

}

The best way is to use different database groups. If you want to keep using the master database as usual ($this->db) just turn off persistent connexion configuration option to your secondary database(s). Only master database should work with persistent connexion :

Master database

$db['default']['hostname'] = "localhost";
$db['default']['username'] = "root";
$db['default']['password'] = "";
$db['default']['database'] = "database_name";
$db['default']['dbdriver'] = "mysql";
$db['default']['dbprefix'] = "";
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = FALSE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = "";
$db['default']['char_set'] = "utf8";
$db['default']['dbcollat'] = "utf8_general_ci";
$db['default']['swap_pre'] = "";
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

Secondary database (notice pconnect is set to false)

$db['otherdb']['hostname'] = "localhost";
$db['otherdb']['username'] = "root";
$db['otherdb']['password'] = "";
$db['otherdb']['database'] = "other_database_name";
$db['otherdb']['dbdriver'] = "mysql";
$db['otherdb']['dbprefix'] = "";
$db['otherdb']['pconnect'] = FALSE;
$db['otherdb']['db_debug'] = FALSE;
$db['otherdb']['cache_on'] = FALSE;
$db['otherdb']['cachedir'] = "";
$db['otherdb']['char_set'] = "utf8";
$db['otherdb']['dbcollat'] = "utf8_general_ci";
$db['otherdb']['swap_pre'] = "";
$db['otherdb']['autoinit'] = TRUE;
$db['otherdb']['stricton'] = FALSE;

Then you can use secondary databases as database objects while using master database as usual :

// use master dataabse
$users = $this->db->get('users');

// connect to secondary database
$otherdb = $this->load->database('otherdb', TRUE);
$stuff = $otherdb->get('struff');
$otherdb->insert_batch('users', $users->result_array());

// keep using master database as usual, for example insert stuff from other database
$this->db->insert_batch('stuff', $stuff->result_array());

A useful extension is to collect the results in a Dictionary for fast lookup (e.g. in a loop):

var resultDict = _dbContext.Projects
    .Where(p => p.Status == ProjectStatus.Active)
    .GroupBy(f => f.Country)
    .Select(g => new { country = g.Key, count = g.Count() })
    .ToDictionary(k => k.country, i => i.count);

Originally found here: http://www.snippetsource.net/Snippet/140/groupby-and-count-with-ef-in-c

after you retrieve the first 50 rows in the query windows, simply click a column to get focus on the query window, then once selected do ctrl + pagedown

This will load the full result set (all rows)

There is another question which duplicates this one. I posted an answer how I solved this problem. Maybe it helps someone else too:

Anyone else's build for iTunes Connect taking longer times to process?

In a nutshell: Build and upload with XCode 6.4 instead of XCode 7.

No, you don't need to add them as a remote. That would be clumbersome and a pain to do each time.

Grabbing their commits:

git fetch [email protected]:theirusername/reponame.git theirbranch:ournameforbranch

This creates a local branch named ournameforbranch which is exactly the same as what theirbranch was for them. For the question example, the last argument would be foo:foo.

Note :ournameforbranch part can be further left off if thinking up a name that doesn't conflict with one of your own branches is bothersome. In that case, a reference called FETCH_HEAD is available. You can git log FETCH_HEAD to see their commits then do things like cherry-picked to cherry pick their commits.

Pushing it back to them:

Oftentimes, you want to fix something of theirs and push it right back. That's possible too:

git fetch [email protected]:theirusername/reponame.git theirbranch
git checkout FETCH_HEAD

# fix fix fix

git push [email protected]:theirusername/reponame.git HEAD:theirbranch

If working in detached state worries you, by all means create a branch using :ournameforbranch and replace FETCH_HEAD and HEAD above with ournameforbranch.

In addition to anyListOf above, you can always specify generics explicitly using this syntax:

when(mock.process(Matchers.<List<Bar>>any(List.class)));

Java 8 newly allows type inference based on parameters, so if you're using Java 8, this may work as well:

when(mock.process(Matchers.any()));

Remember that neither any() nor anyList() will apply any checks, including type or null checks. In Mockito 2.x, any(Foo.class) was changed to mean "any instanceof Foo", but any() still means "any value including null".

NOTE: The above has switched to ArgumentMatchers in newer versions of Mockito, to avoid a name collision with org.hamcrest.Matchers. Older versions of Mockito will need to keep using org.mockito.Matchers as above.

You may change the pg_hba.conf and then reload the postgresql. something in the pg_hba.conf may be like below:

# "local" is for Unix domain socket connections only
local   all             all                                     trust
# IPv4 local connections:
host    all             all             127.0.0.1/32            trust

then you change your user to postgresql, you may login successfully.

su postgresql

Note: This will completely remove nodejs from your system; then you can make a fresh install from the below commands.

Removing Nodejs and Npm

sudo apt-get remove nodejs npm node
sudo apt-get purge nodejs

Now remove .node and .npm folders from your system

sudo rm -rf /usr/local/bin/npm 
sudo rm -rf /usr/local/share/man/man1/node* 
sudo rm -rf /usr/local/lib/dtrace/node.d 
sudo rm -rf ~/.npm 
sudo rm -rf ~/.node-gyp 
sudo rm -rf /opt/local/bin/node 
sudo rm -rf opt/local/include/node 
sudo rm -rf /opt/local/lib/node_modules  

sudo rm -rf /usr/local/lib/node*
sudo rm -rf /usr/local/include/node*
sudo rm -rf /usr/local/bin/node*

Go to home directory and remove any node or node_modules directory, if exists.

You can verify your uninstallation by these commands; they should not output anything.

which node
which nodejs
which npm

Installing NVM (Node Version Manager) by downloading and running a script

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash

The command above will clone the NVM repository from Github to the ~/.nvm directory:

Close and reopen your terminal to start using nvm or run the following to use it now:

export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion

As the output above says, you should either close and reopen the terminal or run the commands to add the path to nvm script to the current shell session. You can do whatever is easier for you.

Once the script is in your PATH, verify that nvm was properly installed by typing:

nvm --version

which should give this output:

0.34.0

Installing Node.js and npm

nvm install node
nvm install --lts

Once the installation is completed, verify it by printing the Node.js version:

node --version

should give this output:

v12.8.1

Npm should also be installed with node, verify it using

npm -v

should give:

6.13.4

Extra - [Optional] You can also use two different versions of node using nvm easily

nvm install 8.10.0 # just put the node version number Now switch between node versions

$ nvm ls
->     v12.14.1
        v13.7.0
default -> lts/* (-> v12.14.1)
node -> stable (-> v13.7.0) (default)
stable -> 13.7 (-> v13.7.0) (default)
iojs -> N/A (default)
unstable -> N/A (default)
lts/* -> lts/erbium (-> v12.14.1)
lts/argon -> v4.9.1 (-> N/A)
lts/boron -> v6.17.1 (-> N/A)
lts/carbon -> v8.17.0 (-> N/A)
lts/dubnium -> v10.18.1 (-> N/A)

In my case v12.14.1 and v13.7.0 both are installed, to switch I have to just use

nvm use 12.14.1

Configuring npm for global installations In your home directory, create a directory for global installations:

mkdir ~/.npm-global

Configure npm to use the new directory path:

npm config set prefix '~/.npm-global'

In your preferred text editor, open or create a ~/.profile file if does not exist and add this line:

PATH="$HOME/.npm-global/bin:$PATH"

On the command line, update your system variables:

source ~/.profile

That's all

You can use both PHP and javascript. Perform your php codes in the backend and redirect to a php page. On the php page you redirected to add the code below:

<?php if(condition_to_check_for){ ?>

    <script type="text/javascript">
       window.open('url_goes_here', '_blank');
    </script>

<?  } ?>

I assume you're trying to tunnel into some unix box.

Make sure X11 forwarding is enabled in your PuTTY settings.

Angular Concepts

• imports makes the exported declarations of other modules available in the current module
• declarations are to make directives (including components and pipes) from the current module available to other directives in the current module. Selectors of directives, components or pipes are only matched against the HTML if they are declared or imported.
• providers are to make services and values known to DI (dependency injection). They are added to the root scope and they are injected to other services or directives that have them as dependency.

A special case for providers are lazy loaded modules that get their own child injector. providers of a lazy loaded module are only provided to this lazy loaded module by default (not the whole application as it is with other modules).

For more details about modules see also https://angular.io/docs/ts/latest/guide/ngmodule.html

• exports makes the components, directives, and pipes available in modules that add this module to imports. exports can also be used to re-export modules such as CommonModule and FormsModule, which is often done in shared modules.

• entryComponents registers components for offline compilation so that they can be used with ViewContainerRef.createComponent(). Components used in router configurations are added implicitly.

TypeScript (ES2015) imports

import ... from 'foo/bar' (which may resolve to an index.ts) are for TypeScript imports. You need these whenever you use an identifier in a typescript file that is declared in another typescript file.

Angular's @NgModule() imports and TypeScript import are entirely different concepts.

See also jDriven - TypeScript and ES6 import syntax

Most of them are actually plain ECMAScript 2015 (ES6) module syntax that TypeScript uses as well.

Retrieve exported .aar file from local builds

If you have a module defined as an android library project you'll get .aar files for all build flavors (debug and release by default) in the build/outputs/aar/ directory of that project.

your-library-project
    |- build
        |- outputs
            |- aar
                |- appframework-debug.aar
                 - appframework-release.aar

If these files don't exist start a build with

gradlew assemble

for macOS users

./gradlew assemble

Library project details

A library project has a build.gradle file containing apply plugin: com.android.library. For reference of this library packaged as an .aar file you'll have to define some properties like package and version.

Example build.gradle file for library (this example includes obfuscation in release):

apply plugin: 'com.android.library'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.0"

    defaultConfig {
        minSdkVersion 9
        targetSdkVersion 21
        versionCode 1
        versionName "0.1.0"
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

Reference .aar file in your project

In your app project you can drop this .aar file in the libs folder and update the build.gradle file to reference this library using the below example:

apply plugin: 'com.android.application'

repositories {
    mavenCentral()
    flatDir {
        dirs 'libs' //this way we can find the .aar file in libs folder
    }
}

android {
    compileSdkVersion 21
    buildToolsVersion "21.0.0"

    defaultConfig {

        minSdkVersion 14
        targetSdkVersion 20
        versionCode 4
        versionName "0.4.0"

        applicationId "yourdomain.yourpackage"
    }

    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            minifyEnabled false
        }
    }
}

dependencies {
    compile 'be.hcpl.android.appframework:appframework:0.1.0@aar'
}

Alternative options for referencing local dependency files in gradle can be found at: http://kevinpelgrims.com/blog/2014/05/18/reference-a-local-aar-in-your-android-project

Sharing dependencies using maven

If you need to share these .aar files within your organization check out maven. A nice write up on this topic can be found at: https://web.archive.org/web/20141002122437/http://blog.glassdiary.com/post/67134169807/how-to-share-android-archive-library-aar-across

About the .aar file format

An aar file is just a .zip with an alternative extension and specific content. For details check this link about the aar format.

Use org.springframework.web.servlet.config.annotation.WebMvcConfigurer

With Spring Boot 2.1.4.RELEASE (Spring Framework 5.1.6.RELEASE), do like this

package vn.bkit;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter; // Deprecated.
import org.springframework.web.servlet.view.InternalResourceViewResolver;

@Configuration
@EnableWebMvc
public class MvcConfiguration implements WebMvcConfigurer {

    @Bean
    public ViewResolver getViewResolver() {
        InternalResourceViewResolver resolver = new InternalResourceViewResolver();
        resolver.setPrefix("/WEB-INF/");
        resolver.setSuffix(".html");
        return resolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

}

Or you can use the more obvious solution, right in the GUI: Tools -> Messages (set verbosity to 2)...

If you want, you can also get a feel for the timezone by asking the browser Josh Fraser has a nice write up on it here

var rightNow = new Date();
var jan1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);
var temp = jan1.toGMTString();
var jan2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
var std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);

The second thing that you need to know is whether the location observes daylight savings time (DST) or not. Since DST is always observed during the summer, we can compare the time offset between two dates in January, to the time offset between two dates in June. If the offsets are different, then we know that the location observes DST. If the offsets are the same, then we know that the location DOES NOT observe DST.

var june1 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0);
temp = june1.toGMTString();
var june2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
var daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
var dst;
if (std_time_offset == daylight_time_offset) {
    dst = "0"; // daylight savings time is NOT observed
} else {
    dst = "1"; // daylight savings time is observed
}

All credit for this goes to Josh Fraser.

This might help you with customers outside the US, and it might complement your zip approach.

Here is a SO questions that touch on getting the timezone from javascript

In this way you can select all the options in any dropdowns.

driver.get("https://www.spectrapremium.com/en/aftermarket/north-america")

print( "The title is  : " + driver.title)

inputs = Select(driver.find_element_by_css_selector('#year'))

input1 = len(inputs.options)

for items in range(input1):

    inputs.select_by_index(items)
    time.sleep(1)

None, Python's null?

There's no null in Python; instead there's None. As stated already, the most accurate way to test that something has been given None as a value is to use the is identity operator, which tests that two variables refer to the same object.

>>> foo is None
True
>>> foo = 'bar'
>>> foo is None
False

The basics

There is and can only be one None

None is the sole instance of the class NoneType and any further attempts at instantiating that class will return the same object, which makes None a singleton. Newcomers to Python often see error messages that mention NoneType and wonder what it is. It's my personal opinion that these messages could simply just mention None by name because, as we'll see shortly, None leaves little room to ambiguity. So if you see some TypeError message that mentions that NoneType can't do this or can't do that, just know that it's simply the one None that was being used in a way that it can't.

Also, None is a built-in constant. As soon as you start Python, it's available to use from everywhere, whether in module, class, or function. NoneType by contrast is not, you'd need to get a reference to it first by querying None for its class.

>>> NoneType
NameError: name 'NoneType' is not defined
>>> type(None)
NoneType

You can check None's uniqueness with Python's identity function id(). It returns the unique number assigned to an object, each object has one. If the id of two variables is the same, then they point in fact to the same object.

>>> NoneType = type(None)
>>> id(None)
10748000
>>> my_none = NoneType()
>>> id(my_none)
10748000
>>> another_none = NoneType()
>>> id(another_none)
10748000
>>> def function_that_does_nothing(): pass
>>> return_value = function_that_does_nothing()
>>> id(return_value)
10748000

None cannot be overwritten

In much older versions of Python (before 2.4) it was possible to reassign None, but not any more. Not even as a class attribute or in the confines of a function.

# In Python 2.7
>>> class SomeClass(object):
...     def my_fnc(self):
...             self.None = 'foo'
SyntaxError: cannot assign to None
>>> def my_fnc():
        None = 'foo'
SyntaxError: cannot assign to None

# In Python 3.5
>>> class SomeClass:
...     def my_fnc(self):
...             self.None = 'foo'
SyntaxError: invalid syntax
>>> def my_fnc():
        None = 'foo'
SyntaxError: cannot assign to keyword

It's therefore safe to assume that all None references are the same. There isn't any "custom" None.

To test for None use the is operator

When writing code you might be tempted to test for Noneness like this:

if value==None:
    pass

Or to test for falsehood like this

if not value:
    pass

You need to understand the implications and why it's often a good idea to be explicit.

Case 1: testing if a value is None

Why do

value is None

rather than

value==None

?

The first is equivalent to:

id(value)==id(None)

Whereas the expression value==None is in fact applied like this

value.__eq__(None)

If the value really is None then you'll get what you expected.

>>> nothing = function_that_does_nothing()
>>> nothing.__eq__(None)
True

In most common cases the outcome will be the same, but the __eq__() method opens a door that voids any guarantee of accuracy, since it can be overridden in a class to provide special behavior.

Consider this class.

>>> class Empty(object):
...     def __eq__(self, other):
...         return not other

So you try it on None and it works

>>> empty = Empty()
>>> empty==None
True

But then it also works on the empty string

>>> empty==''
True

And yet

>>> ''==None
False
>>> empty is None
False

Case 2: Using None as a boolean

The following two tests

if value:
    # Do something

if not value:
    # Do something

are in fact evaluated as

if bool(value):
    # Do something

if not bool(value):
    # Do something

None is a "falsey", meaning that if cast to a boolean it will return False and if applied the not operator it will return True. Note however that it's not a property unique to None. In addition to False itself, the property is shared by empty lists, tuples, sets, dicts, strings, as well as 0, and all objects from classes that implement the __bool__() magic method to return False.

>>> bool(None)
False
>>> not None
True

>>> bool([])
False
>>> not []
True

>>> class MyFalsey(object):
...     def __bool__(self):
...         return False
>>> f = MyFalsey()
>>> bool(f)
False
>>> not f
True

So when testing for variables in the following way, be extra aware of what you're including or excluding from the test:

def some_function(value=None):
    if not value:
        value = init_value()

In the above, did you mean to call init_value() when the value is set specifically to None, or did you mean that a value set to 0, or the empty string, or an empty list should also trigger the initialization? Like I said, be mindful. As it's often the case, in Python explicit is better than implicit.

None in practice

None used as a signal value

None has a special status in Python. It's a favorite baseline value because many algorithms treat it as an exceptional value. In such scenarios it can be used as a flag to signal that a condition requires some special handling (such as the setting of a default value).

You can assign None to the keyword arguments of a function and then explicitly test for it.

def my_function(value, param=None):
    if param is None:
        # Do something outrageous!

You can return it as the default when trying to get to an object's attribute and then explicitly test for it before doing something special.

value = getattr(some_obj, 'some_attribute', None)
if value is None:
    # do something spectacular!

By default a dictionary's get() method returns None when trying to access a non-existing key:

>>> some_dict = {}
>>> value = some_dict.get('foo')
>>> value is None
True

If you were to try to access it by using the subscript notation a KeyError would be raised

>>> value = some_dict['foo']
KeyError: 'foo'

Likewise if you attempt to pop a non-existing item

>>> value = some_dict.pop('foo')
KeyError: 'foo'

which you can suppress with a default value that is usually set to None

value = some_dict.pop('foo', None)
if value is None:
    # Booom!

None used as both a flag and valid value

The above described uses of None apply when it is not considered a valid value, but more like a signal to do something special. There are situations however where it sometimes matters to know where None came from because even though it's used as a signal it could also be part of the data.

When you query an object for its attribute with getattr(some_obj, 'attribute_name', None) getting back None doesn't tell you if the attribute you were trying to access was set to None or if it was altogether absent from the object. The same situation when accessing a key from a dictionary, like some_dict.get('some_key'), you don't know if some_dict['some_key'] is missing or if it's just set to None. If you need that information, the usual way to handle this is to directly attempt accessing the attribute or key from within a try/except construct:

try:
    # Equivalent to getattr() without specifying a default
    # value = getattr(some_obj, 'some_attribute')
    value = some_obj.some_attribute
    # Now you handle `None` the data here
    if value is None:
        # Do something here because the attribute was set to None
except AttributeError:
    # We're now handling the exceptional situation from here.
    # We could assign None as a default value if required.
    value = None
    # In addition, since we now know that some_obj doesn't have the
    # attribute 'some_attribute' we could do something about that.
    log_something(some_obj)

Similarly with dict:

try:
    value = some_dict['some_key']
    if value is None:
        # Do something here because 'some_key' is set to None
except KeyError:
    # Set a default
    value = None
    # And do something because 'some_key' was missing
    # from the dict.
    log_something(some_dict)

The above two examples show how to handle object and dictionary cases. What about functions? The same thing, but we use the double asterisks keyword argument to that end:

def my_function(**kwargs):
    try:
        value = kwargs['some_key']
        if value is None:
            # Do something because 'some_key' is explicitly
            # set to None
    except KeyError:
        # We assign the default
        value = None
        # And since it's not coming from the caller.
        log_something('did not receive "some_key"')

None used only as a valid value

If you find that your code is littered with the above try/except pattern simply to differentiate between None flags and None data, then just use another test value. There's a pattern where a value that falls outside the set of valid values is inserted as part of the data in a data structure and is used to control and test special conditions (e.g. boundaries, state, etc.). Such a value is called a sentinel and it can be used the way None is used as a signal. It's trivial to create a sentinel in Python.

undefined = object()

The undefined object above is unique and doesn't do much of anything that might be of interest to a program, it's thus an excellent replacement for None as a flag. Some caveats apply, more about that after the code.

With function

def my_function(value, param1=undefined, param2=undefined):
    if param1 is undefined:
        # We know nothing was passed to it, not even None
        log_something('param1 was missing')
        param1 = None


    if param2 is undefined:
        # We got nothing here either
        log_something('param2 was missing')
        param2 = None

With dict

value = some_dict.get('some_key', undefined)
if value is None:
    log_something("'some_key' was set to None")

if value is undefined:
    # We know that the dict didn't have 'some_key'
    log_something("'some_key' was not set at all")
    value = None

With an object

value = getattr(obj, 'some_attribute', undefined)
if value is None:
    log_something("'obj.some_attribute' was set to None")
if value is undefined:
    # We know that there's no obj.some_attribute
    log_something("no 'some_attribute' set on obj")
    value = None

As I mentioned earlier, custom sentinels come with some caveats. First, they're not keywords like None, so Python doesn't protect them. You can overwrite your undefined above at any time, anywhere in the module it's defined, so be careful how you expose and use them. Next, the instance returned by object() is not a singleton. If you make that call 10 times you get 10 different objects. Finally, usage of a sentinel is highly idiosyncratic. A sentinel is specific to the library it's used in and as such its scope should generally be limited to the library's internals. It shouldn't "leak" out. External code should only become aware of it, if their purpose is to extend or supplement the library's API.

This simple script allows you to uncheck an already checked radio button. Works on all javascript enabled browsers.

var allRadios = document.getElementsByName('re');_x000D_
var booRadio;_x000D_
var x = 0;_x000D_
for(x = 0; x < allRadios.length; x++){_x000D_
  allRadios[x].onclick = function() {_x000D_
    if(booRadio == this){_x000D_
      this.checked = false;_x000D_
      booRadio = null;_x000D_
    } else {_x000D_
      booRadio = this;_x000D_
    }_x000D_
  };_x000D_
}

<input type='radio' class='radio-button' name='re'>_x000D_
<input type='radio' class='radio-button' name='re'>_x000D_
<input type='radio' class='radio-button' name='re'>

I mostly build large scale, high availability type systems, so my answer is biased towards looking at it from a production support standpoint; that said, we assign roughly as follows:

• error: the system is in distress, customers are probably being affected (or will soon be) and the fix probably requires human intervention. The "2AM rule" applies here- if you're on call, do you want to be woken up at 2AM if this condition happens? If yes, then log it as "error".

• warn: an unexpected technical or business event happened, customers may be affected, but probably no immediate human intervention is required. On call people won't be called immediately, but support personnel will want to review these issues asap to understand what the impact is. Basically any issue that needs to be tracked but may not require immediate intervention.

• info: things we want to see at high volume in case we need to forensically analyze an issue. System lifecycle events (system start, stop) go here. "Session" lifecycle events (login, logout, etc.) go here. Significant boundary events should be considered as well (e.g. database calls, remote API calls). Typical business exceptions can go here (e.g. login failed due to bad credentials). Any other event you think you'll need to see in production at high volume goes here.

• debug: just about everything that doesn't make the "info" cut... any message that is helpful in tracking the flow through the system and isolating issues, especially during the development and QA phases. We use "debug" level logs for entry/exit of most non-trivial methods and marking interesting events and decision points inside methods.

• trace: we don't use this often, but this would be for extremely detailed and potentially high volume logs that you don't typically want enabled even during normal development. Examples include dumping a full object hierarchy, logging some state during every iteration of a large loop, etc.

As or more important than choosing the right log levels is ensuring that the logs are meaningful and have the needed context. For example, you'll almost always want to include the thread ID in the logs so you can follow a single thread if needed. You may also want to employ a mechanism to associate business info (e.g. user ID) to the thread so it gets logged as well. In your log message, you'll want to include enough info to ensure the message can be actionable. A log like " FileNotFound exception caught" is not very helpful. A better message is "FileNotFound exception caught while attempting to open config file: /usr/local/app/somefile.txt. userId=12344."

There are also a number of good logging guides out there... for example, here's an edited snippet from JCL (Jakarta Commons Logging):

• error - Other runtime errors or unexpected conditions. Expect these to be immediately visible on a status console.
• warn - Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". Expect these to be immediately visible on a status console.
• info - Interesting runtime events (startup/shutdown). Expect these to be immediately visible on a console, so be conservative and keep to a minimum.
• debug - detailed information on the flow through the system. Expect these to be written to logs only.
• trace - more detailed information. Expect these to be written to logs only.

Yes and no.

The basic charset of base64 may in some cases collide with traditional conventions used in URLs. But many of base64 implementations allow you to change the charset to match URLs better or even come with one (like Python's urlsafe_b64encode()).

Another issue you may be facing is the limit of URL length or rather — lack of such limit. Because standards do not specify any maximum length, browsers, servers, libraries and other software working with HTTP protocol may define its' own limits.

This error occurs when the reference to the "System.dll" got removed.Solution to the problem is very simple add the reference to "System.dll".The dll is normally available in the following location
"C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727" .Add the reference your problem will get solved .

For another approach, you can wrap your tests in a function and use normal conditional checks at runtime to only execute them if you want.

#include <gtest/gtest.h>

const bool skip_some_test = true;

bool some_test_was_run = false;

void someTest() {
   EXPECT_TRUE(!skip_some_test);
   some_test_was_run = true;
}

TEST(BasicTest, Sanity) {
   EXPECT_EQ(1, 1);
   if(!skip_some_test) {
      someTest();
      EXPECT_TRUE(some_test_was_run);
   }
}

This is useful for me as I'm trying to run some tests only when a system supports dual stack IPv6.

Technically that dualstack stuff shouldn't really be a unit test as it depends on the system. But I can't really make any integration tests until I have tested they work anyway and this ensures that it won't report failures when it's not the codes fault.

As for the test of it I have stub objects that simulate a system's support for dualstack (or lack of) by constructing fake sockets.

The only downside is that the test output and the number of tests will change which could cause issues with something that monitors the number of successful tests.

You can also use ASSERT_* rather than EQUAL_*. Assert will about the rest of the test if it fails. Prevents a lot of redundant stuff being dumped to the console.

HTML are markup languages, basically they are set of tags like <html>, <body>, which is used to present a website using css, and javascript as a whole. All these, happen in the clients system or the user you will be browsing the website.

Now, Connecting to a database, happens on whole another level. It happens on server, which is where the website is hosted.

So, in order to connect to the database and perform various data related actions, you have to use server-side scripts, like php, jsp, asp.net etc.

Now, lets see a snippet of connection using MYSQLi Extension of PHP

$db = mysqli_connect('hostname','username','password','databasename');

This single line code, is enough to get you started, you can mix such code, combined with HTML tags to create a HTML page, which is show data based pages. For example:

<?php
    $db = mysqli_connect('hostname','username','password','databasename');
?>
<html>
    <body>
          <?php
                $query = "SELECT * FROM `mytable`;";
                $result = mysqli_query($db, $query);
                while($row = mysqli_fetch_assoc($result)) {
                      // Display your datas on the page
                }
          ?>
    </body>
</html>

In order to insert new data into the database, you can use phpMyAdmin or write a INSERT query and execute them.

You can also use this:

DbFunctions.DiffDays(date1, date2) == 0

I needed something similar for a task. This is the code I wrote: It calculates the next day and changes the time to whatever is required and finds seconds between currentTime and next scheduled time.

import datetime as dt

def my_job():
    print "hello world"
nextDay = dt.datetime.now() + dt.timedelta(days=1)
dateString = nextDay.strftime('%d-%m-%Y') + " 01-00-00"
newDate = nextDay.strptime(dateString,'%d-%m-%Y %H-%M-%S')
delay = (newDate - dt.datetime.now()).total_seconds()
Timer(delay,my_job,()).start()

In the first two cases, you simply forgot to actually call the member function (!, it's not a value) std::vector<int>::size like this:

#include <vector>

int main () {
    std::vector<int> v;
    auto size = v.size();
}

Your third call

int size = v.size();

triggers a warning, as not every return value of that function (usually a 64 bit unsigned int) can be represented as a 32 bit signed int.

int size = static_cast<int>(v.size());

would always compile cleanly and also explicitly states that your conversion from std::vector::size_type to int was intended.

Note that if the size of the vector is greater than the biggest number an int can represent, size will contain an implementation defined (de facto garbage) value.

I had a similar problem that I resolved myself.... I think it was partially my code hogging too much memory while too many "big things"

in my application - the workbook goes out and grabs another departments "daily report".. and I extract out all the information our team needs (to minimize mistakes and data entry).

I pull in their sheets directly... but I hate the fact that they use Merged cells... which I get rid of (ie unmerge, then find the resulting blank cells, and fill with the values from above)

I made my problem go away by

a)unmerging only the "used cells" - rather than merely attempting to do entire column... ie finding the last used row in the column, and unmerging only this range (there is literally 1000s of rows on each of the sheet I grab)

b) Knowing that the undo only looks after the last ~16 events... between each "unmerge" - i put 15 events which clear out what is stored in the "undo" to minimize the amount of memory held up (ie go to some cell with data in it.. and copy// paste special value... I was GUESSING that the accumulated sum of 30sheets each with 3 columns worth of data might be taxing memory set as side for undoing

Yes it doesn't allow for any chance of an Undo... but the entire purpose is to purge the old information and pull in the new time sensitive data for analysis so it wasn't an issue

Sound corny - but my problem went away

I think it's better..

package main

import "fmt"

func main() {
    str := "abc"
    mySlice := []byte(str)
    fmt.Printf("%v -> '%s'",mySlice,mySlice )
}

Check here: http://play.golang.org/p/vpnAWHZZk7

Your interior <div> elements should likely both be float:left. Divs size to 100% the size of their container width automatically. Try using display:inline-block instead of width:auto on the container div. Or possibly float:left the container and also apply overflow:auto. Depends on what you're after exactly.

Not a direct answer but it could help.

I run most of my dockerized services tied to own static ips using the next approach:

1. I create ip aliases for all services on docker host
2. Then I run each service redirecting ports from this ip into container so each service have own static ip which could be used by external users and other containers.

Sample:

docker run --name dns --restart=always -d -p 172.16.177.20:53:53/udp dns
docker run --name registry --restart=always -d -p 172.16.177.12:80:5000 registry
docker run --name cache --restart=always -d -p 172.16.177.13:80:3142 -v /data/cache:/var/cache/apt-cacher-ng cache
docker run --name mirror --restart=always -d -p 172.16.177.19:80:80 -v /data/mirror:/usr/share/nginx/html:ro mirror
...

As of year 2020, JetBrains suggests to commit the .idea folder.
The JetBrains IDEs (webstorm, intellij, android studio, pycharm, clion, etc.) automatically add that folder to your git repository (if there's one).
Inside the folder .idea, has been already created a .gitignore, updated by the IDE itself to avoid to commit user related settings that may contains privacy/password data.

It is safe (and usually useful) to commit the .idea folder.

In C and C++ and many languages, % is the remainder NOT the modulus operator.

For example in the operation -21 / 4 the integer part is -5 and the decimal part is -.25. The remainder is the fractional part times the divisor, so our remainder is -1. JavaScript uses the remainder operator and confirms this

console.log(-21 % 4 == -1);

The modulus operator is like you had a "clock". Imagine a circle with the values 0, 1, 2, and 3 at the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions respectively. Stepping quotient times around the clock clock-wise lands us on the result of our modulus operation, or, in our example with a negative quotient, counter-clockwise, yielding 3.

Note: Modulus is always the same sign as the divisor and remainder the same sign as the quotient. Adding the divisor and the remainder when at least one is negative yields the modulus.

There are a lot of good answers to this question already but another way to take a look at it is the cloud (ala Amazon's AWS) is good for interactive use cases and the grid (ala High Performance Computing) is good for batch use cases.

Cloud is interactive in that you can get resources on demand via self service. The code you run on VMs in the cloud, such as the Apache web server, can server clients interactively.

Grid is batch in that you submit jobs to a job queue after obtaining the credentials from some HPC authority to do so. The code you run on the grid waits in that queue until there are sufficient resources to execute it.

There are good use cases for both styles of computing.

Recommendation. Do not use user-added REM statements to block batch steps. Use conditional GOTO instead. That way you can predefine and test the steps and options. The users also get much simpler changes and better confidence.

@Echo on
rem Using flags to control command execution

SET ExecuteSection1=0
SET ExecuteSection2=1

@echo off

IF %ExecuteSection1%==0 GOTO EndSection1
ECHO Section 1 Here

:EndSection1

IF %ExecuteSection2%==0 GOTO EndSection2
ECHO Section 2 Here
:EndSection2

If all your divs start with editDialog as you stated, then you can use the following selector:

$("div[id^='editDialog']")

Or you could use a class selector instead if it's easier for you

<div id="editDialog-0" class="editDialog">...</div>

$(".editDialog")

Add this to the scope - https://www.googleapis.com/auth/userinfo.profile

And after authorization is done, get the information from - https://www.googleapis.com/oauth2/v1/userinfo?alt=json

It has loads of stuff - including name, public profile url, gender, photo etc.

I've created a tool which is completely free, that will help you to achieve your goal. Muse VSReferences will allow you to add a Global Assembly Cache reference to the project from Add GAC Reference menu item.

Hope this helps Muse VSExtensions

To be able to use std::unordered_map (or one of the other unordered associative containers) with a user-defined key-type, you need to define two things:

1. A hash function; this must be a class that overrides operator() and calculates the hash value given an object of the key-type. One particularly straight-forward way of doing this is to specialize the std::hash template for your key-type.

2. A comparison function for equality; this is required because the hash cannot rely on the fact that the hash function will always provide a unique hash value for every distinct key (i.e., it needs to be able to deal with collisions), so it needs a way to compare two given keys for an exact match. You can implement this either as a class that overrides operator(), or as a specialization of std::equal, or – easiest of all – by overloading operator==() for your key type (as you did already).

The difficulty with the hash function is that if your key type consists of several members, you will usually have the hash function calculate hash values for the individual members, and then somehow combine them into one hash value for the entire object. For good performance (i.e., few collisions) you should think carefully about how to combine the individual hash values to ensure you avoid getting the same output for different objects too often.

A fairly good starting point for a hash function is one that uses bit shifting and bitwise XOR to combine the individual hash values. For example, assuming a key-type like this:

struct Key
{
  std::string first;
  std::string second;
  int         third;

  bool operator==(const Key &other) const
  { return (first == other.first
            && second == other.second
            && third == other.third);
  }
};

Here is a simple hash function (adapted from the one used in the cppreference example for user-defined hash functions):

namespace std {

  template <>
  struct hash<Key>
  {
    std::size_t operator()(const Key& k) const
    {
      using std::size_t;
      using std::hash;
      using std::string;

      // Compute individual hash values for first,
      // second and third and combine them using XOR
      // and bit shifting:

      return ((hash<string>()(k.first)
               ^ (hash<string>()(k.second) << 1)) >> 1)
               ^ (hash<int>()(k.third) << 1);
    }
  };

}

With this in place, you can instantiate a std::unordered_map for the key-type:

int main()
{
  std::unordered_map<Key,std::string> m6 = {
    { {"John", "Doe", 12}, "example"},
    { {"Mary", "Sue", 21}, "another"}
  };
}

It will automatically use std::hash<Key> as defined above for the hash value calculations, and the operator== defined as member function of Key for equality checks.

If you don't want to specialize template inside the std namespace (although it's perfectly legal in this case), you can define the hash function as a separate class and add it to the template argument list for the map:

struct KeyHasher
{
  std::size_t operator()(const Key& k) const
  {
    using std::size_t;
    using std::hash;
    using std::string;

    return ((hash<string>()(k.first)
             ^ (hash<string>()(k.second) << 1)) >> 1)
             ^ (hash<int>()(k.third) << 1);
  }
};

int main()
{
  std::unordered_map<Key,std::string,KeyHasher> m6 = {
    { {"John", "Doe", 12}, "example"},
    { {"Mary", "Sue", 21}, "another"}
  };
}

How to define a better hash function? As said above, defining a good hash function is important to avoid collisions and get good performance. For a real good one you need to take into account the distribution of possible values of all fields and define a hash function that projects that distribution to a space of possible results as wide and evenly distributed as possible.

This can be difficult; the XOR/bit-shifting method above is probably not a bad start. For a slightly better start, you may use the hash_value and hash_combine function template from the Boost library. The former acts in a similar way as std::hash for standard types (recently also including tuples and other useful standard types); the latter helps you combine individual hash values into one. Here is a rewrite of the hash function that uses the Boost helper functions:

#include <boost/functional/hash.hpp>

struct KeyHasher
{
  std::size_t operator()(const Key& k) const
  {
      using boost::hash_value;
      using boost::hash_combine;

      // Start with a hash value of 0    .
      std::size_t seed = 0;

      // Modify 'seed' by XORing and bit-shifting in
      // one member of 'Key' after the other:
      hash_combine(seed,hash_value(k.first));
      hash_combine(seed,hash_value(k.second));
      hash_combine(seed,hash_value(k.third));

      // Return the result.
      return seed;
  }
};

And here’s a rewrite that doesn’t use boost, yet uses good method of combining the hashes:

namespace std
{
    template <>
    struct hash<Key>
    {
        size_t operator()( const Key& k ) const
        {
            // Compute individual hash values for first, second and third
            // http://stackoverflow.com/a/1646913/126995
            size_t res = 17;
            res = res * 31 + hash<string>()( k.first );
            res = res * 31 + hash<string>()( k.second );
            res = res * 31 + hash<int>()( k.third );
            return res;
        }
    };
}

If you have shell access to the server (the question mentions op does not have, but in case you have,) on a debian/ubuntu system

sudo apt-cache policy postgresql

which will output the installed version,

postgresql:
  Installed: 9.6+184ubuntu1.1
  Candidate: 9.6+184ubuntu1.1
  Version table:
 *** 9.6+184ubuntu1.1 500
        500 http://in.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages
        500 http://in.archive.ubuntu.com/ubuntu artful-updates/main i386 Packages
        500 http://security.ubuntu.com/ubuntu artful-security/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu artful-security/main i386 Packages
        100 /var/lib/dpkg/status
     9.6+184ubuntu1 500
        500 http://in.archive.ubuntu.com/ubuntu artful/main amd64 Packages
        500 http://in.archive.ubuntu.com/ubuntu artful/main i386 Packages

where the Installed: <version> is the installed postgres package version.

You need to use the global statement so that you are modifying the global variable counter, instead of a local variable:

counter = 0

def increment():
  global counter
  counter += 1

increment()

If the enclosing scope that counter is defined in is not the global scope, on Python 3.x you could use the nonlocal statement. In the same situation on Python 2.x you would have no way to reassign to the nonlocal name counter, so you would need to make counter mutable and modify it:

counter = [0]

def increment():
  counter[0] += 1

increment()
print counter[0]  # prints '1'

On the same layout where is defined the RecyclerView, add the TextView:

<android.support.v7.widget.RecyclerView
    android:id="@+id/recycler_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:scrollbars="vertical" />

<TextView
    android:id="@+id/empty_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center"
    android:visibility="gone"
    android:text="@string/no_data_available" />

At the onCreate or the appropriate callback you check if the dataset that feeds your RecyclerView is empty. If the dataset is empty, the RecyclerView is empty too. In that case, the message appears on the screen. If not, change its visibility:

private RecyclerView recyclerView;
private TextView emptyView;

// ...

recyclerView = (RecyclerView) rootView.findViewById(R.id.recycler_view);
emptyView = (TextView) rootView.findViewById(R.id.empty_view);

// ...

if (dataset.isEmpty()) {
    recyclerView.setVisibility(View.GONE);
    emptyView.setVisibility(View.VISIBLE);
}
else {
    recyclerView.setVisibility(View.VISIBLE);
    emptyView.setVisibility(View.GONE);
}

You can use a span with 50% border radius.

 .mydot{_x000D_
     background: rgb(66, 183, 42);_x000D_
     border-radius: 50%;_x000D_
     display: inline-block;_x000D_
     height: 20px;_x000D_
     margin-left: 4px;_x000D_
     margin-right: 4px;_x000D_
     width: 20px;_x000D_
}    

<span class="mydot"></span>

Here's a controversial option:

String.prototype.includesOneOf = function(arrayOfStrings) {
  if(!Array.isArray(arrayOfStrings)) {
    throw new Error('includesOneOf only accepts an array')
  }
  return arrayOfStrings.some(str => this.includes(str))
}

Allowing you to do things like:

'Hi, hope you like this option'.toLowerCase().includesOneOf(["hello", "hi", "howdy"]) // True

use this

 function pnstest(){

                $data = array('post_id'=>'12345','title'=>'A Blog post', 'message' =>'test msg');

                $url = 'https://fcm.googleapis.com/fcm/send';

                $server_key = 'AIzaSyDVpDdS7EyNgMUpoZV6sI2p-cG';

                $target ='fO3JGJw4CXI:APA91bFKvHv8wzZ05w2JQSor6D8lFvEGE_jHZGDAKzFmKWc73LABnumtRosWuJx--I4SoyF1XQ4w01P77MKft33grAPhA8g-wuBPZTgmgttaC9U4S3uCHjdDn5c3YHAnBF3H';

                $fields = array();
                $fields['data'] = $data;
                if(is_array($target)){
                    $fields['registration_ids'] = $target;
                }else{
                    $fields['to'] = $target;
                }

                //header with content_type api key
                $headers = array(
                    'Content-Type:application/json',
                  'Authorization:key='.$server_key
                );

                $ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, $url);
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
                curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
                $result = curl_exec($ch);
                if ($result === FALSE) {
                    die('FCM Send Error: ' . curl_error($ch));
                }
                curl_close($ch);
                return $result;

}

Both malloc and calloc allocate memory, but calloc initialises all the bits to zero whereas malloc doesn't.

Calloc could be said to be equivalent to malloc + memset with 0 (where memset sets the specified bits of memory to zero).

So if initialization to zero is not necessary, then using malloc could be faster.

Use collectl which has extensive process I/O monitoring including monitoring threads.

Be warned that there are I/O counters for I/O being written to cache and I/O going to disk. collectl reports them separately. If you're not careful you can misinterpret the data. See http://collectl.sourceforge.net/Process.html

Of course, it shows a lot more than just process stats because you'd want one tool to provide everything rather than a bunch of different one that displays everything in different formats, right?

Calendar cal = Calendar.getInstance(); //This to obtain today's date in our Calendar var.

java.sql.Date date = new Date (cal.getTimeInMillis());

for others that find this in the search:

I often get this one when I accidentally call a function using the class name rather than the object name. This typically happens because i give them too similar names : P

ie:

MyClass myclass = new MyClass();

// then later

MyClass.someFunction();

This is obviously a static method. (good for somethings) But what i really wanted to do (in most cases was)

myclass.someFunction();

It's such a silly mistake, but every couple of months, i waste about 30 mins messing with vars in the "MyClass" definitions to work out what im doing wrong when really, its just a typo.

Funny note: stack overflow highlights the syntax to make the mistake really obvious here.

I was getting an error while using "import dns.resolver". I tried dnspython, py3dns but they failed. dns won't install. after much hit and try I installed pubdns module and it solved my problem.

Try this:

$fruits = array( 4 => 'apple', 7 => 'orange', 13 => 'plum' );_x000D_
echo reset($fruits)."\n";

Say that authorsToRemove is an IEnumerable<T> that contains the elements you want to remove from authorsList.

Then here is another very simple way to accomplish the removal task asked by the OP:

authorsList.RemoveAll(authorsToRemove.Contains);

It seems strange, but nonetheless HTML5 supports drawing lines, circles, rectangles and many other basic shapes, it does not have anything suitable for drawing the basic point. The only way to do so is to simulate a point with whatever you have.

So basically there are 3 possible solutions:

• draw point as a line
• draw point as a polygon
• draw point as a circle

Each of them has their drawbacks.

Line

function point(x, y, canvas){
  canvas.beginPath();
  canvas.moveTo(x, y);
  canvas.lineTo(x+1, y+1);
  canvas.stroke();
}

Keep in mind that we are drawing to South-East direction, and if this is the edge, there can be a problem. But you can also draw in any other direction.

Rectangle

function point(x, y, canvas){
  canvas.strokeRect(x,y,1,1);
}

or in a faster way using fillRect because render engine will just fill one pixel.

function point(x, y, canvas){
  canvas.fillRect(x,y,1,1);
}

Circle

One of the problems with circles is that it is harder for an engine to render them

function point(x, y, canvas){
  canvas.beginPath();
  canvas.arc(x, y, 1, 0, 2 * Math.PI, true);
  canvas.stroke();
}

the same idea as with rectangle you can achieve with fill.

function point(x, y, canvas){
  canvas.beginPath();
  canvas.arc(x, y, 1, 0, 2 * Math.PI, true);
  canvas.fill();
}

Problems with all these solutions:

• it is hard to keep track of all the points you are going to draw.
• when you zoom in, it looks ugly

If you are wondering, what is the best way to draw a point, I would go with filled rectangle. You can see my jsperf here with comparison tests

...
for(int i=0;i<3;i++){ //Rows
for(int j=0;j<5;j++){ //Cols
 printf("%<...>\t",var);
}
printf("\n");
}
...

considering that <...> would be d,e,f,s,c... etc datatype... X)

UPDATE 2020: SQL Server 2016+ JSON Serialization and De-serialization Examples

The data provided by the OP inserted into a temporary table called #project_members

drop table if exists #project_members;
create table #project_members(
  empName        varchar(20) not null,
  projID         varchar(20) not null);
go
insert #project_members(empName, projID) values
('ANDY', 'A100'),
('ANDY', 'B391'),
('ANDY', 'X010'),
('TOM', 'A100'),
('TOM', 'A510');

How to serialize this data into a single JSON string with a nested array containing projID's

select empName, (select pm_json.projID 
                 from #project_members pm_json 
                 where pm.empName=pm_json.empName 
                 for json path, root('projList')) projJSON
from #project_members pm
group by empName
for json path;

Result

'[
  {
    "empName": "ANDY",
    "projJSON": {
      "projList": [
        { "projID": "A100" },
        { "projID": "B391" },
        { "projID": "X010" }
      ]
    }
  },
  {
    "empName": "TOM",
    "projJSON": {
      "projList": [
        { "projID": "A100" },
        { "projID": "A510" }
      ]
    }
  }
]'

How to de-serialize this data from a single JSON string back to it's original rows and columns

declare @json           nvarchar(max)=N'[{"empName":"ANDY","projJSON":{"projList":[{"projID":"A100"},
                                         {"projID":"B391"},{"projID":"X010"}]}},{"empName":"TOM","projJSON":
                                         {"projList":[{"projID":"A100"},{"projID":"A510"}]}}]';

select oj.empName, noj.projID 
from openjson(@json) with (empName        varchar(20),
                           projJSON       nvarchar(max) as json) oj
     cross apply openjson(oj.projJSON, '$.projList') with (projID    varchar(20)) noj;

Results

empName projID
ANDY    A100
ANDY    B391
ANDY    X010
TOM     A100
TOM     A510

How to persist the unique empName to a table and store the projID's in a nested JSON array

drop table if exists #project_members_with_json;
create table #project_members_with_json(
  empName        varchar(20) unique not null,
  projJSON       nvarchar(max) not null);
go
insert #project_members_with_json(empName, projJSON) 
select empName, (select pm_json.projID 
                 from #project_members pm_json 
                 where pm.empName=pm_json.empName 
                 for json path, root('projList')) 
from #project_members pm
group by empName;

Results

empName projJSON
ANDY    {"projList":[{"projID":"A100"},{"projID":"B391"},{"projID":"X010"}]}
TOM     {"projList":[{"projID":"A100"},{"projID":"A510"}]}

How to de-serialize from a table with unique empName and nested JSON array column containing projID's

select wj.empName, oj.projID
from
  #project_members_with_json wj
 cross apply
  openjson(wj.projJSON, '$.projList') with (projID    varchar(20)) oj;

Results

empName projID
ANDY    A100
ANDY    B391
ANDY    X010
TOM     A100
TOM     A510

You are missing a semicolon at the end of your 'struct' definition.

Also,

*sotrudnik

needs to be

sotrudnik*

As of Spark 2.4.3

val df = SparkSession.builder().getOrCreate().emptyDataFrame

You can use json_decode(Your variable Name):

json_decode($result)

I was getting value from Model.where a column has value like this way

{"dayList":[
            {"day":[1,2,3,4],"time":[{"in_time":"10:00"},{"late_time":"15:00"},{"out_time":"16:15"}]
             },
             {"day":[5,6,7],"time":[{"in_time":"10:00"},{"late_time":"15:00"},{"out_time":"16:15"}]}
           ]
}

so access this value form model. you have to use this code.

$dayTimeListObject = json_decode($settingAttendance->bio_attendance_day_time,1);

 foreach ( $dayTimeListObject['dayList'] as $dayListArr)
 {
     foreach ( $dayListArr['day'] as $dayIndex)
     {
         if( $dayIndex == Date('w',strtotime('2020-02-11')))
         {
             $dayTimeList= $dayListArr['time'];
         }
     }
 }

 return $dayTimeList[2]['out_time'] ;

You can also define caste in your Model file.

 protected $casts = [
    'your-column-name' => 'json'
  ];

so after this no need of this line .

$dayTimeListObject = json_decode($settingAttendance->bio_attendance_day_time,1);

you can directly access this code.

$settingAttendance->bio_attendance_day_time

The CSS property display: inline-block was designed to address this need. You can read a bit about it here: http://robertnyman.com/2010/02/24/css-display-inline-block-why-it-rocks-and-why-it-sucks/

Below is an example of its use. The key elements are that the row element has white-space: nowrap and the cell elements have display: inline-block. This example should work on most major browsers; a compatibility table is available here: http://caniuse.com/#feat=inline-block

<html>
<body>
<style>

.row {
    float:left;
    border: 1px solid yellow;
    width: 100%;
    overflow: auto;
    white-space: nowrap;
}

.cell {
    display: inline-block;
    border: 1px solid red;
    width: 200px;
    height: 100px;
}
</style>

<div class="row">
    <div class="cell">a</div>
    <div class="cell">b</div>
    <div class="cell">c</div>
</div>


</body>
</html>

An iterative function to free your list:

void freeList(struct node* head)
{
   struct node* tmp;

   while (head != NULL)
    {
       tmp = head;
       head = head->next;
       free(tmp);
    }

}

What the function is doing is the follow:

1. check if head is NULL, if yes the list is empty and we just return

2. Save the head in a tmp variable, and make head point to the next node on your list (this is done in head = head->next

3. Now we can safely free(tmp) variable, and head just points to the rest of the list, go back to step 1

Use the -1 option (note this is a "one" digit, not a lowercase letter "L"), like this:

ls -1a

First, though, make sure your ls supports -1. GNU coreutils (installed on standard Linux systems) and Solaris do; but if in doubt, use man ls or ls --help or check the documentation. E.g.:

$ man ls
...
       -1     list one file per line.  Avoid '\n' with -q or -b

I don't think adb pull handles wildcards for multiple files. I ran into the same problem and did this by moving the files to a folder and then pulling the folder.

I found a link doing the same thing. Try following these steps.

How to copy selected files from Android with adb pull

same with speed regulator

public class SmoothScrollLinearLayoutManager extends LinearLayoutManager {
private static final float MILLISECONDS_PER_INCH = 110f;
private Context mContext;

public SmoothScrollLinearLayoutManager(Context context,int orientation, boolean reverseLayout) {
    super(context,orientation,reverseLayout);
    mContext = context;
}

@Override
public void smoothScrollToPosition(RecyclerView recyclerView, RecyclerView.State state,
                                   int position) {
    RecyclerView.SmoothScroller smoothScroller = new TopSnappedSmoothScroller(recyclerView.getContext()){
        //This controls the direction in which smoothScroll looks for your view
        @Override
        public PointF computeScrollVectorForPosition(int targetPosition) {
            return new PointF(0, 1);
        }

        //This returns the milliseconds it takes to scroll one pixel.
        @Override
        protected float calculateSpeedPerPixel(DisplayMetrics displayMetrics) {
            return MILLISECONDS_PER_INCH / displayMetrics.densityDpi;
        }
    };
    smoothScroller.setTargetPosition(position);
    startSmoothScroll(smoothScroller);
}


private class TopSnappedSmoothScroller extends LinearSmoothScroller {
    public TopSnappedSmoothScroller(Context context) {
        super(context);

    }

    @Override
    public PointF computeScrollVectorForPosition(int targetPosition) {
        return SmoothScrollLinearLayoutManager.this
                .computeScrollVectorForPosition(targetPosition);
    }

    @Override
    protected int getVerticalSnapPreference() {
        return SNAP_TO_START;
    }
}
}

None of the answers here worked for me. What I had to do is:

1. Re-run the installer.
2. Select the quick action 're-configure' next to product 'MySQL Server'
3. Go through the options till you reach Authentication Method and select 'Use Legacy Authentication Method'

After that it works fine.

function beep(wavFile){
    wavFile = wavFile || "beep.wav"
    if (navigator.appName == 'Microsoft Internet Explorer'){
        var e = document.createElement('BGSOUND');
        e.src = wavFile;
        e.loop =1;
        document.body.appendChild(e);
        document.body.removeChild(e);
    }else{
        var e = document.createElement('AUDIO');
        var src1 = document.createElement('SOURCE');
        src1.type= 'audio/wav';
        src1.src= wavFile;
        e.appendChild(src1);
        e.play();
    }
}

Works on Chrome,IE,Mozilla using Win7 OS. Requires a beep.wav file on the server.

You can also use MDIParent-child form. Set the child form's parent as MDI Parent

Eg

child.MdiParent = parentForm;
child.Show();

In this case just 1 form will be shown and the child forms will come inside the parent. Hope this helps

In the model, write the below code;

public $timestamps = false;

This would work.

Explanation : By default laravel will expect created_at & updated_at column in your table. By making it to false it will override the default setting.

Don't use quotes with <<EOF:

var=$1
sudo tee "/path/to/outfile" > /dev/null <<EOF
Some text that contains my $var
EOF

Variable expansion is the default behavior inside of here-docs. You disable that behavior by quoting the label (with single or double quotes).

Simplest way is:

in script_1.py:

import subprocess
subprocess.call(['python3',<path_to_script_2.py>])

in script_2.py:

sys.argv[0]

P.S.: I've tried execfile, but since it reads script_2.py as a string, sys.argv[0] returned <string>.

$ git clone --mirror $URL

is a short-hand for

$ git clone --bare $URL
$ (cd $(basename $URL) && git remote add --mirror=fetch origin $URL)

(Copied directly from here)

How the current man-page puts it:

Compared to --bare, --mirror not only maps local branches of the source to local branches of the target, it maps all refs (including remote branches, notes etc.) and sets up a refspec configuration such that all these refs are overwritten by a git remote update in the target repository.

var mouseX;
var mouseY;
$(document).mousemove( function(e) {
   mouseX = e.pageX; 
   mouseY = e.pageY;
});  
$(".classForHoverEffect").mouseover(function(){
  $('#DivToShow').css({'top':mouseY,'left':mouseX}).fadeIn('slow');
});

the function above will make the DIV appear over the link wherever that may be on the page. It will fade in slowly when the link is hovered. You could also use .hover() instead. From there the DIV will stay, so if you would like the DIV to disappear when the mouse moves away, then,

$(".classForHoverEffect").mouseout(function(){
  $('#DivToShow').fadeOut('slow');
});

If you DIV is already positioned, you can simply use

$('.classForHoverEffect').hover(function(){
  $('#DivToShow').fadeIn('slow');
});

Also, keep in mind, your DIV style needs to be set to display:none; in order for it to fadeIn or show.

Finaly I got it!!!

import csv

def select_index(index):
    csv_file = open('oscar_age_female.csv', 'r')
    csv_reader = csv.DictReader(csv_file)

    for line in csv_reader:
        l = line['Index']
        if l == index:
            print(line[' "Name"'])

select_index('11')

"Bette Davis"

As of Jquery 3.0 and above .bind has been deprecated and they prefer using .on instead. As @Blazemonger answered earlier that it may be removed and its for sure that it will be removed. For the older versions .bind would also call .on internally and there is no difference between them. Please also see the api for more detail.

jQuery API documentation for .bind()

Matplotlib can handle directly and transparently jpg if you have installed PIL. You don't need to call it, it will do it by itself. If Python cannot find PIL, it will raise an error.

For those looking for answers for SQL Server 2016+. Use the built-in STRING_SPLIT function

Eg:

DECLARE @tags NVARCHAR(400) = 'clothing,road,,touring,bike'  

SELECT value  
FROM STRING_SPLIT(@tags, ',')  
WHERE RTRIM(value) <> '';  

Reference: https://msdn.microsoft.com/en-nz/library/mt684588.aspx

My first answer!

This will set the safemode switch:

bcdedit /set {current} safeboot minimal 

with networking:

bcdedit /set {current} safeboot network

then reboot the machine with

shutdown /r

to put back in normal mode via dos:

bcdedit /deletevalue {current} safeboot

Unary operators in INTERCAL (AND, OR and XOR).

press your keyboard Insert Key

Assuming that I is your input image and F is its Fourier Transform (i.e. F = fft2(I))

You can use this code:

F = fftshift(F); % Center FFT

F = abs(F); % Get the magnitude
F = log(F+1); % Use log, for perceptual scaling, and +1 since log(0) is undefined
F = mat2gray(F); % Use mat2gray to scale the image between 0 and 1

imshow(F,[]); % Display the result

Install HookyQR.beautify extension. It will beautify your javascript, JSON, CSS, Sass, and HTML in Visual Studio Code. It is the most use extensions for this purpose

I bet the problem is being shown in this line

SqlDataReader dr3 = com2.ExecuteReader();

I suggest that you execute the first reader and do a dr.Close(); and the iterate historicos, with another loop, performing the com2.ExecuteReader().

public List<string[]> get_dados_historico_verificacao_email_WEB(string email)
    {

        List<string[]> historicos = new List<string[]>();
        conecta();
        sql = "SELECT * FROM historico_verificacao_email WHERE nm_email = '" + email + "' ORDER BY  dt_verificacao_email DESC, hr_verificacao_email DESC"; 
        com = new SqlCommand(sql, conexao);
        SqlDataReader dr = com.ExecuteReader();

        if (dr.HasRows)
        {
            while (dr.Read())
            {
                string[] dados_historico = new string[6];
                dados_historico[0] = dr["nm_email"].ToString();
                dados_historico[1] = dr["dt_verificacao_email"].ToString();
                dados_historico[1] = dados_historico[1].Substring(0, 10);
                //System.Windows.Forms.MessageBox.Show(dados_historico[1]);
                dados_historico[2] = dr["hr_verificacao_email"].ToString();
                dados_historico[3] = dr["ds_tipo_verificacao"].ToString();
                dados_historico[5] = dr["cd_login_usuario"].ToString();
                historicos.Add(dados_historico);
            }

            dr.Close();

            sql = "SELECT COUNT(e.cd_historico_verificacao_email) QT FROM emails_lidos e WHERE e.cd_historico_verificacao_email = '" + dr["cd_historico_verificacao_email"].ToString() + "'";
            tipo_sql = "seleção";
            com2 = new SqlCommand(sql, conexao);

            for(int i = 0 ; i < historicos.Count() ; i++)
            {
                SqlDataReader dr3 = com2.ExecuteReader();
                while (dr3.Read())
                {
                    historicos[i][4] = dr3["QT"].ToString(); //quantidade de emails lidos naquela verificação
                }
                dr3.Close();
            }

        }

        return historicos;

TLS (Transport Level Security) is the slightly broader term that has replaced SSL (Secure Sockets Layer) in securing HTTP communications. So what you are being asked to do is enable SSL.

It's worth to mention that using concerns is considered bad idea by many.

1. like this guy
2. and this one

Some reasons:

1. There is some dark magic happening behind the scenes - Concern is patching include method, there is a whole dependency handling system - way too much complexity for something that's trivial good old Ruby mixin pattern.
2. Your classes are no less dry. If you stuff 50 public methods in various modules and include them, your class still has 50 public methods, it's just that you hide that code smell, sort of put your garbage in the drawers.
3. Codebase is actually harder to navigate with all those concerns around.
4. Are you sure all members of your team have same understanding what should really substitute concern?

Concerns are easy way to shoot yourself in the leg, be careful with them.

In-Short Differences are

1) PCL is not going to have Full Access to .NET Framework , where as SharedProject has.

2) #ifdef for platform specific code - you can not write in PCL (#ifdef option isn’t available to you in a PCL because it’s compiled separately, as its own DLL, so at compile time (when the #ifdef is evaluated) it doesn’t know what platform it will be part of. ) where as Shared project you can.

3) Platform specific code is achieved using Inversion Of Control in PCL , where as using #ifdef statements you can achieve the same in Shared Project.

An excellent article which illustrates differences between PCL vs Shared Project can be found at the following link

http://hotkrossbits.com/2015/05/03/xamarin-forms-pcl-vs-shared-project/

Unless PHP has a builtin for that, you won't be able to do it in less than O(n) - enumerating over all the keys and checking for integer type. In fact, you also want to make sure there are no holes, so your algorithm might look like:

for i in 0 to len(your_array):
    if not defined(your-array[i]):
        # this is not an array array, it's an associative array :)

But why bother? Just assume the array is of the type you expect. If it isn't, it will just blow up in your face - that's dynamic programming for you! Test your code and all will be well...

How about:

from xx in table
where stringarray.Contains(xx.uid.ToString())
select xx

Here's a a couple of useful link that I found when I started with JNI

http://en.wikipedia.org/wiki/Java_Native_Interface
http://download.oracle.com/javase/1.5.0/docs/guide/jni/spec/functions.html

concerning your problem you can use this

JNIEXPORT void JNICALL Java_ClassName_MethodName(JNIEnv *env, jobject obj, jstring javaString)   
{
   const char *nativeString = env->GetStringUTFChars(javaString, 0);

   // use your string

   env->ReleaseStringUTFChars(javaString, nativeString);
}

I find it highly unlikely for Postgres to truncate your data on input - it either rejects it or stores it as is.

milen@dev:~$ psql
Welcome to psql 8.2.7, the PostgreSQL interactive terminal.

Type:  \copyright for distribution terms
       \h for help with SQL commands
       \? for help with psql commands
       \g or terminate with semicolon to execute query
       \q to quit

milen=> create table EscapeTest (text varchar(50));
CREATE TABLE
milen=> insert into EscapeTest (text) values ('This will be inserted \n This will not be');
WARNING:  nonstandard use of escape in a string literal
LINE 1: insert into EscapeTest (text) values ('This will be inserted...
                                              ^
HINT:  Use the escape string syntax for escapes, e.g., E'\r\n'.
INSERT 0 1
milen=> select * from EscapeTest;
          text
------------------------
 This will be inserted
  This will not be
(1 row)

milen=>

This should do the trick:

SET FOREIGN_KEY_CHECKS=0; DROP TABLE bericht; SET FOREIGN_KEY_CHECKS=1;

As others point out, this is almost never what you want, even though it's whats asked in the question. A more safe solution is to delete the tables depending on bericht before deleting bericht. See CloudyMarble answer on how to do that. I use bash and the method in my post to drop all tables in a database when I don't want to or can't delete and recreate the database itself.

The #1217 error happens when other tables has foreign key constraints to the table you are trying to delete and you are using the InnoDB database engine. This solution temporarily disables checking the restraints and then re-enables them. Read the documentation for more. Be sure to delete foreign key restraints and fields in tables depending on bericht, otherwise you might leave your database in a broken state.

From the answer of @Vicent, I already restore MySQL database as below:

Step 1. Shutdown Mysql server

Step 2. Copy database in your database folder (in linux, the default location is /var/lib/mysql). Keep same name of the database, and same name of database in mysql mode.

sudo cp -rf   /mnt/ubuntu_426/var/lib/mysql/database1 /var/lib/mysql/

Step 3: Change own and change mode the folder:

sudo chown -R mysql:mysql /var/lib/mysql/database1
sudo chmod -R 660 /var/lib/mysql/database1
sudo chown  mysql:mysql /var/lib/mysql/database1 
sudo chmod 700 /var/lib/mysql/database1

Step 4: Copy ibdata1 in your database folder

sudo cp /mnt/ubuntu_426/var/lib/mysql/ibdata1 /var/lib/mysql/

sudo chown mysql:mysql /var/lib/mysql/ibdata1

Step 5: copy ib_logfile0 and ib_logfile1 files in your database folder.

sudo cp /mnt/ubuntu_426/var/lib/mysql/ib_logfile0 /var/lib/mysql/

sudo cp /mnt/ubuntu_426/var/lib/mysql/ib_logfile1 /var/lib/mysql/

Remember change own and change root of those files:

sudo chown -R mysql:mysql /var/lib/mysql/ib_logfile0

sudo chown -R mysql:mysql /var/lib/mysql/ib_logfile1

or

sudo chown -R mysql:mysql /var/lib/mysql

Step 6 (Optional): My site has configuration to store files in a specific location, then I copy those to corresponding location, exactly.

Step 7: Start your Mysql server. Everything come back and enjoy it.

That is it.

See more info at: https://biolinh.wordpress.com/2017/04/01/restoring-mysql-database-from-physical-files-debianubuntu/

Laravel 5 timestamps are instances of Carbon class, so you can directly call Carbon's string formatting method on your timestamps. Something like this in your view file.

{{$task->created_at->toFormattedDateString()}}

http://carbon.nesbot.com/docs/#api-formatting

Quick sort is typically faster than merge sort when the data is stored in memory. However, when the data set is huge and is stored on external devices such as a hard drive, merge sort is the clear winner in terms of speed. It minimizes the expensive reads of the external drive and also lends itself well to parallel computing.

You can solve your issue by using the 'contains' function within your Xpath query, as below:

var allElementsWithClassFloat = 
   _doc.DocumentNode.SelectNodes("//*[contains(@class,'float')]")

To reuse this in a function do something similar to the following:

string classToFind = "float";    
var allElementsWithClassFloat = 
   _doc.DocumentNode.SelectNodes(string.Format("//*[contains(@class,'{0}')]", classToFind));

Semantically, you're probably looking for the one-liner

new Date().toLocaleString()

which formats the date in the locale of the user.

If you're really looking for a specific way to format dates, I recommend the moment.js library.

It is being answer long back but i have tried to do this in the following way to just avoid null pointer exception and may be useful for someone using C# null check operator ?.

     //fragments is a list which can be null
     fragments?.ForEach((obj) =>
        {
            //do something with obj
        });

Try this:

#!/usr/bin/env python

import os
import paramiko 
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect('hostname', username="username", password="password")
sftp = ssh.open_sftp()
localpath = '/home/e100075/python/ss.txt'
remotepath = '/home/developers/screenshots/ss.txt'
sftp.put(localpath, remotepath)
sftp.close()
ssh.close()

From another perspective, files that both unicode and ascii encodings fail to read because they have a byte 0xc0 in them, seem to get read by iso-8859-1 properly. The caveat is that the file shouldn't have unicode characters in it of course.

ARM is a RISC (Reduced Instruction Set Computing) architecture while x86 is a CISC (Complex Instruction Set Computing) one.

The core difference between those in this aspect is that ARM instructions operate only on registers with a few instructions for loading and saving data from / to memory while x86 can operate directly on memory as well. Up until v8 ARM was a native 32 bit architecture, favoring four byte operations over others.

So ARM is a simpler architecture, leading to small silicon area and lots of power save features while x86 becoming a power beast in terms of both power consumption and production.

About question on "Is the x86 Architecture specially designed to work with a keyboard while ARM expects to be mobile?". x86 isn't specially designed to work with a keyboard neither ARM for mobile. However again because of the core architectural choices actually x86 also has instructions to work directly with IO while ARM has not. However with specialized IO buses like USBs, need for such features are also disappearing.

If you need a document to quote, this is what Cortex-A Series Programmers Guide (4.0) tells about differences between RISC and CISC architectures:

An ARM processor is a Reduced Instruction Set Computer (RISC) processor.

Complex Instruction Set Computer (CISC) processors, like the x86, have a rich instruction set capable of doing complex things with a single instruction. Such processors often have significant amounts of internal logic that decode machine instructions to sequences of internal operations (microcode).

RISC architectures, in contrast, have a smaller number of more general purpose instructions, that might be executed with significantly fewer transistors, making the silicon cheaper and more power efficient. Like other RISC architectures, ARM cores have a large number of general-purpose registers and many instructions execute in a single cycle. It has simple addressing modes, where all load/store addresses can be determined from register contents and instruction fields.

ARM company also provides a paper titled Architectures, Processors, and Devices Development Article describing how those terms apply to their bussiness.

An example comparing instruction set architecture:

For example if you would need some sort of bytewise memory comparison block in your application (generated by compiler, skipping details), this is how it might look like on x86

repe cmpsb         /* repeat while equal compare string bytewise */

while on ARM shortest form might look like (without error checking etc.)

top:
ldrb r2, [r0, #1]! /* load a byte from address in r0 into r2, increment r0 after */
ldrb r3, [r1, #1]! /* load a byte from address in r1 into r3, increment r1 after */
subs r2, r3, r2    /* subtract r2 from r3 and put result into r2      */
beq  top           /* branch(/jump) if result is zero                 */

which should give you a hint on how RISC and CISC instruction sets differ in complexity.

You can call max(vector, na.rm = TRUE). More generally, you can use the na.omit() function.

You have to close all tags like , etc for this to not show.

Dim timeFormat As String = "yyyy-MM-dd HH:mm:ss"
objBL.date = Convert.ToDateTime(txtDate.Value).ToString(timeFormat)

You can abort a task like a thread if you can cause the task to be created on its own thread and call Abort on its Thread object. By default, a task runs on a thread pool thread or the calling thread - neither of which you typically want to abort.

To ensure the task gets its own thread, create a custom scheduler derived from TaskScheduler. In your implementation of QueueTask, create a new thread and use it to execute the task. Later, you can abort the thread, which will cause the task to complete in a faulted state with a ThreadAbortException.

Use this task scheduler:

class SingleThreadTaskScheduler : TaskScheduler
{
    public Thread TaskThread { get; private set; }

    protected override void QueueTask(Task task)
    {
        TaskThread = new Thread(() => TryExecuteTask(task));
        TaskThread.Start();
    }

    protected override IEnumerable<Task> GetScheduledTasks() => throw new NotSupportedException(); // Unused
    protected override bool TryExecuteTaskInline(Task task, bool taskWasPreviouslyQueued) => throw new NotSupportedException(); // Unused
}

Start your task like this:

var scheduler = new SingleThreadTaskScheduler();
var task = Task.Factory.StartNew(action, cancellationToken, TaskCreationOptions.LongRunning, scheduler);

Later, you can abort with:

scheduler.TaskThread.Abort();

Note that the caveat about aborting a thread still applies:

The Thread.Abort method should be used with caution. Particularly when you call it to abort a thread other than the current thread, you do not know what code has executed or failed to execute when the ThreadAbortException is thrown, nor can you be certain of the state of your application or any application and user state that it is responsible for preserving. For example, calling Thread.Abort may prevent static constructors from executing or prevent the release of unmanaged resources.

git pull = git fetch + git merge origin/branch

git pull and git pull origin branch only differ in that the latter will only "update" origin/branch and not all origin/* as git pull does.

git pull origin/branch will just not work because it's trying to do a git fetch origin/branch which is invalid.

Question related: git fetch + git merge origin/master vs git pull origin/master

I rename my own just by simply :

1. going to github.com on my repository
2. Open Settings Tab
3. The first setting you can see is the "Repository Name"
4. Change the actual one and put the new name you want to give to your repository
5. Click on "Rename" button

After this step, GitHub will make sure that, your online repository matches your local folder name. At this step your problem is solved, unless you also want to rename your local folder. Then do it manually and just use the Github client for windows to refind again your repository into your hard drive, and Github will match it again. That's all! Very simple.

here is anaother way to limit your filter on html, for example I want to display 3 list at time than i will use limitTo:3

  <li ng-repeat="phone in phones | limitTo:3">
    <p>Phone Name: {{phone.name}}</p>
  </li>

if it's not working for you then replace android:background with android:src

android:src will play the major trick

    <ImageView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:adjustViewBounds="true"
    android:scaleType="fitCenter"
    android:src="@drawable/bg_hc" />

it's working fine like a charm

Use CURRENT_TIMESTAMP() or now()

Like

INSERT INTO servers (server_name, online_status, exchange, disk_space,
network_shares,date_time) VALUES('m1','ONLINE','ONLINE','100GB','ONLINE',now() )

or

INSERT INTO servers (server_name, online_status, exchange, disk_space,
network_shares,date_time) VALUES('m1', 'ONLINE', 'ONLINE', '100GB', 'ONLINE'
,CURRENT_TIMESTAMP() )

Replace date_time with the column name you want to use to insert the time.

The best way to do, I think, is to handle it like the MSDN said on http://msdn.microsoft.com/en-us/library/system.windows.forms.control.previewkeydown.aspx

But handle it, how you really need it. My way (in the example below) is to catch every KeyDown ;-)

    /// <summary>
    /// onPreviewKeyDown
    /// </summary>
    /// <param name="e"></param>
    protected override void OnPreviewKeyDown(PreviewKeyDownEventArgs e)
    {
        e.IsInputKey = true;
    }

    /// <summary>
    /// onKeyDown
    /// </summary>
    /// <param name="e"></param>
    protected override void OnKeyDown(KeyEventArgs e)
    {
        Input.SetFlag(e.KeyCode);
        e.Handled = true;
    }

    /// <summary>
    /// onKeyUp
    /// </summary>
    /// <param name="e"></param>
    protected override void OnKeyUp(KeyEventArgs e)
    {
        Input.RemoveFlag(e.KeyCode);
        e.Handled = true;
    }

You're looking for the Skip and Take extension methods. Skip moves past the first N elements in the result, returning the remainder; Take returns the first N elements in the result, dropping any remaining elements.

See MSDN for more information on how to use these methods: http://msdn.microsoft.com/en-us/library/bb386988.aspx

Assuming you are already taking into account that the pageNumber should start at 0 (decrease per 1 as suggested in the comments) You could do it like this:

int numberOfObjectsPerPage = 10;
var queryResultPage = queryResult
  .Skip(numberOfObjectsPerPage * pageNumber)
  .Take(numberOfObjectsPerPage);

Otherwise as suggested by @Alvin

int numberOfObjectsPerPage = 10;
var queryResultPage = queryResult
  .Skip(numberOfObjectsPerPage * (pageNumber - 1))
  .Take(numberOfObjectsPerPage);

You have a lot of unnecessary keyframes. Don't think of keyframes as individual frames, think of them as "steps" in your animation and the computer fills in the frames between the keyframes.

Here is a solution that cleans up a lot of code and makes the animation start from the center:

.gps_ring {
    border: 3px solid #999;
    -webkit-border-radius: 30px;
    height: 18px;
    width: 18px;
    position: absolute;
    left:20px;
    top:214px;
    -webkit-animation: pulsate 1s ease-out;
    -webkit-animation-iteration-count: infinite; 
    opacity: 0.0
}
@-webkit-keyframes pulsate {
    0% {-webkit-transform: scale(0.1, 0.1); opacity: 0.0;}
    50% {opacity: 1.0;}
    100% {-webkit-transform: scale(1.2, 1.2); opacity: 0.0;}
}

You can see it in action here: http://jsfiddle.net/Fy8vD/

1. Click on Start menu > Programs > Microsoft Sql Server > Configuration Tools

2. Select Sql Server Surface Area Configuration.

3. Now click on Surface Area configuration for services and connections

4. On the left pane of pop up window click on Remote Connections and Select Local and Remote connections radio button.

5. Select Using both TCP/IP and named pipes radio button.

6. click on apply and ok.

Now when try to connect to sql server using sql username and password u'll get the error mentioned below

Cannot connect to SQLEXPRESS.

ADDITIONAL INFORMATION:

Login failed for user 'username'. The user is not associated with a trusted SQL Server connection. (Microsoft SQL Server, Error: 18452) ation To fix this error follow steps mentioned below

1. connect to sql server using window authentication.

2. Now right click on your server name at the top in left pane and select properties.

3. Click on security and select sql server and windows authentication mode radio button.

4. Click on OK.

5. restart sql server servive by right clicking on server name and select restart.

Now your problem should be fixed and u'll be able to connect using sql server username and password.

Have fun. Ateev Gupta

I believe this will work:

TextArea.Text = "Line 1" & vbCrLf & "Line 2"

System.Environment.NewLine could be used in place of vbCrLf if you wanted to be a little less VB6 about it.

The expression a == b should do the job.

Epsilon is your "fuzz factor," since doubles may not be exactly equal. Epsilon lets you describe how close they have to be.

If you were expecting 3.14159 but would take anywhere from 3.14059 to 3.14259 (that is, within 0.001), then you should write something like

double myPi = 22.0d / 7.0d; //Don't use this in real life!
assertEquals(3.14159, myPi, 0.001);

(By the way, 22/7 comes out to 3.1428+, and would fail the assertion. This is a good thing.)

    String s = "<B><G>Test</G></B><C>Test1</C>";

    String pattern ="\\<(.+)\\>([^\\<\\>]+)\\<\\/\\1\\>";

       int count = 0;

        Pattern p = Pattern.compile(pattern);
        Matcher m =  p.matcher(s);
        while(m.find())
        {
            System.out.println(m.group(2));
            count++;
        }

This will work but there is still the possibility of a null record being returned. Though you may be setting the email address to a string of length zero when you insert the record, you may still want to handle the case of a NULL email address getting into the system somehow.

     $aUsers=$this->readToArray('
     SELECT `userID` 
     FROM `users` 
     WHERE `userID` 
     IN(SELECT `userID`
               FROM `users_indvSettings`
               WHERE `indvSettingID`=5 AND `optionID`='.$time.')
     AND `email` != "" AND `email` IS NOT NULL
     ');

Note: Posted this answer because OP later stated in comments that they need to select the last two elements, not just the second to last one.

The :nth-child CSS3 selector is in fact more capable than you ever imagined!

For example, this will select the last 2 elements of #container:

#container :nth-last-child(-n+2) {}

But this is just the beginning of a beautiful friendship.

• :nth-child Browser Support

#container :nth-last-child(-n+2) {
  background-color: cyan;
}

<div id="container">
 <div>a</div>
 <div>b</div>
 <div>SELECT THIS</div>
 <div>SELECT THIS</div>
</div>

The property event.which is added when using jQuery to avoid browser differences. See docs.

The which property will be undefined if you are not using jQuery.

You can use Joshua's solution but I think you need Elts_int <- as.matrix(tmp_int)

Or for loops:

z <- 1 ## Initialize
counter <- 1 ## Initialize
for(y in 1:48) { ## Assuming 48 columns otherwise, swap 48 and 32
for (x in 1:32) {  
z[counter] <- tmp_int[x,y]
counter <- 1 + counter
}
}

z is a 1d vector.

If you want to read only one field value, I think, using the template reference variables is the easiest way

Template

<input #phone placeholder="phone number" />

<input type="button" value="Call" (click)="callPhone(phone.value)" />

**Component** 
 
callPhone(phone): void 
{
  
console.log(phone);

}

If you have a number of fields, using the reactive form one of the best ways.

CellSpacing as the name suggests it is the Space between the Adjacent cells and CellPadding on the other hand means the padding around the cell content.

Deleting the package-lock.json did it for me. I'd suggest you not push package-lock.json to your repo as I wasted hours trying to npm install with the package-lock.json in the folder which gave me helluva errors.

I have today similar problem. But weirder.

• host - works host pl.archive.ubuntu.com
• dig - works on default and on all other DNS's dig pl.archive.ubuntu.com, dig @127.0.1.1 pl.archive.ubuntu.com
• curl - doesn't work! but for some addresses it does. WEIRD! Same in Ruby, APT and many more.

$ curl -v http://google.com/
*   Trying 172.217.18.78...
* Connected to google.com (172.217.18.78) port 80 (#0)
> GET / HTTP/1.1
> Host: google.com
> User-Agent: curl/7.47.0
> Accept: */*
>
< HTTP/1.1 302 Found
< Cache-Control: private
< Content-Type: text/html; charset=UTF-8
< Referrer-Policy: no-referrer
< Location: http://www.google.pl/?gfe_rd=cr&ei=pt9UWfqXL4uBX_W5n8gB
< Content-Length: 256
< Date: Thu, 29 Jun 2017 11:08:22 GMT
<
<HTML><HEAD><meta http-equiv="content-type" content="text/html;charset=utf-8">
<TITLE>302 Moved</TITLE></HEAD><BODY>
<H1>302 Moved</H1>
The document has moved
<A HREF="http://www.google.pl/?gfe_rd=cr&ei=pt9UWfqXL4uBX_W5n8gB">here</A>.
</BODY></HTML>
* Connection #0 to host google.com left intact

$ curl -v http://pl.archive.ubuntu.com/
* Could not resolve host: pl.archive.ubuntu.com
* Closing connection 0
curl: (6) Could not resolve host: pl.archive.ubuntu.com

Revelation

Eventually I used strace on curl and found that it was connection to nscd deamon.

connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = 0

Solution

I've restarted the nscd service (Name Service Cache Daemon) and it helped to solve this issue!

systemctl restart nscd.service

In case of adding new rows for array in loop, Assign the array directly for firsttime in loop instead of initialising an empty array.

for i in range(0,len(0,100)):
    SOMECALCULATEDARRAY = .......
    if(i==0):
        finalArrayCollection = SOMECALCULATEDARRAY
    else:
        finalArrayCollection = np.vstack(finalArrayCollection,SOMECALCULATEDARRAY)

This is mainly useful when the shape of the array is unknown

You can use the following function to subtract 1 or any years from a date.

 function yearstodate($years) {

        $now = date("Y-m-d");
        $now = explode('-', $now);
        $year = $now[0];
        $month   = $now[1];
        $day  = $now[2];
        $converted_year = $year - $years;
        echo $now = $converted_year."-".$month."-".$day;

    }

$number_to_subtract = "1";
echo yearstodate($number_to_subtract);

And looking at above examples you can also use the following

$user_age_min = "-"."1";
echo date('Y-m-d', strtotime($user_age_min.'year'));

To install an APK on your mobile, you can either:

1. Use ADB from the Android SDK, and do the following command: adb install filename.apk. Note, you'll need to enable USB debugging for this to work.
2. Transfer the file to your device, then open it with a file manager, such as Linda File Manager.

Note, that you'll have to enable installing packages from Unknown Sources in your Applications settings.

As for getting USB to work, I suggest consulting the Android StackExchange for advice.

I had similar issue. try this $('#myAnchor').get(0).click();this works for me

First, create staticfiles folder. Inside that folder create css, js, and img folder.

settings.py

import os

PROJECT_DIR = os.path.dirname(__file__)

DATABASES = {
    'default': {
         'ENGINE': 'django.db.backends.sqlite3', 
         'NAME': os.path.join(PROJECT_DIR, 'myweblabdev.sqlite'),                        
         'USER': '',
         'PASSWORD': '',
         'HOST': '',                      
         'PORT': '',                     
    }
}

MEDIA_ROOT = os.path.join(PROJECT_DIR, 'media')

MEDIA_URL = '/media/'

STATIC_ROOT = os.path.join(PROJECT_DIR, 'static')

STATIC_URL = '/static/'

STATICFILES_DIRS = (
    os.path.join(PROJECT_DIR, 'staticfiles'),
)

main urls.py

from django.conf.urls import patterns, include, url
from django.conf.urls.static import static
from django.contrib import admin
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from myweblab import settings

admin.autodiscover()

urlpatterns = patterns('',
    .......
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

urlpatterns += staticfiles_urlpatterns()

template

{% load static %}

<link rel="stylesheet" href="{% static 'css/style.css' %}">

Just saw that question on one of the interview question, if possible to change final variable with reflection or in runtime. Got really interested, so that what I became with:

 /**
 * @author Dmitrijs Lobanovskis
 * @since 03/03/2016.
 */
public class SomeClass {

    private final String str;

    SomeClass(){
        this.str = "This is the string that never changes!";
    }

    public String getStr() {
        return str;
    }

    @Override
    public String toString() {
        return "Class name: " + getClass() + " Value: " + getStr();
    }
}

Some simple class with final String variable. So in the main class import java.lang.reflect.Field;

/**
 * @author Dmitrijs Lobanovskis
 * @since 03/03/2016.
 */
public class Main {


    public static void main(String[] args) throws Exception{

        SomeClass someClass = new SomeClass();
        System.out.println(someClass);

        Field field = someClass.getClass().getDeclaredField("str");
        field.setAccessible(true);

        field.set(someClass, "There you are");

        System.out.println(someClass);
    }
}

The output will be as follows:

Class name: class SomeClass Value: This is the string that never changes!
Class name: class SomeClass Value: There you are

Process finished with exit code 0

According to documentation https://docs.oracle.com/javase/tutorial/reflect/member/fieldValues.html

Alternative approach:

 TextView tv = new TextView(this);
 tv.setText(Integer.toString(integer));

phpMyAdmin lets you define foreign keys using their "relations" view. But since, MySQL only supports foreign constraints on "INNO DB" tables, the first step is to make sure the tables you are using are of that type.

To setup a foreign key so that the PID column in a table named CHILD references the ID column in a table named PARENT, you can do the following:

1. For both tables, go to the operations tab and change their type to "INNO DB"
2. Make sure ID is the primary key (or at least an indexed column) of the PARENT table.
3. In the CHILD table, define an index for the PID column.
4. While viewing the structure tab of the CHILD table, click the "relation view" link just above the "add fields" section.
5. You will be given a table where each row corresponds to an indexed column in your CLIENT table. The first dropdown in each row lets you choose which TABLE->COLUMN the indexed column references. In the row for PID, choose PARENT->ID from the dropdown and click GO.

By doing an export on the CHILD table, you should see a foreign key constraint has been created for the PID column.

To convert integer to char only 0 to 9 will be converted. As we know 0's ASCII value is 48 so we have to add its value to the integer value to convert in into the desired character hence

int i=5;
char c = i+'0';

Here's an example with a Windows path:

docker run -P -it --name organizr --mount src="/c/Users/MyUserName/AppData/Roaming/DockerConfigs/Organizr",dst=/config,type=bind organizrtools/organizr-v2:latest

As a side note, during all of this hair pulling, having to wrestle with figuring out, and retyping paths over and over and over again, I decided to whip up a small AutoHotkey script to convert a Windows path to a "Docker Windows" formatted path. This way all I have to do is copy any Windows path that I want to use as a mount point to the clipboard, press the "Apps Key" on the keyboard, and it'll format it into a path format that Docker appreciates.

For example:

Copy this to your clipboard:

C:\Users\My PC\AppData\Roaming\DockerConfigs\Organizr

press the Apps Key while the cursor is where you want it on the command-line, and it'll paste this there:

"/c/Users/My PC/AppData/Roaming/DockerConfigs/Organizr"

Saves a lot to time for me. Here it is for anyone else who may find it useful.

; --------------------------------------------------------------------------------------------------------------
;
; Docker Utility: Convert a Windows Formatted Path to a Docker Formatter Path
;                   Useful for (example) when mounting Windows volumes via the command-line.
;
; By:       J. Scott Elblein
; Version:  1.0
; Date:     2/5/2019
;
; Usage:    Cut or Copy the Windows formatted path to the clipboard, press the AppsKey on your keyboard
;           (usually right next to the Windows Key), it'll format it into a 'docker path' and enter it
;           into the active window. Easy example usage would be to copy your intended volume path via
;           Explorer, place the cursor after the "-v" in your Docker command, press the Apps Key and
;           then it'll place the formatted path onto the line for you.
;
; TODO::    I may or may not add anything to this depending on needs. Some ideas are:
;           
;           - Add a tray menu with the ability to do some things, like just replace the unformatted path
;               on the clipboard with the formatted one rather than enter it automatically.
;           - Add 'smarter' handling so the it first confirms that the clipboard text is even a path in
;               the first place. (would need to be able to handle Win + Mac + Linux)
;           - Add command-line handling so the script doesn't need to always be in the tray, you could
;               just pass the Windows path to the script, have it format it, then paste and close.
;               Also, could have it just check for a path on the clipboard upon script startup, if found
;               do it's job, then exit the script.
;           - Add an 'all-in-one' action, to copy the selected Windows path, and then output the result.
;           - Whatever else comes to mind.
;
; --------------------------------------------------------------------------------------------------------------

#NoEnv
SendMode Input
SetWorkingDir %A_ScriptDir%

AppsKey::

    ; Create a new var, store the current clipboard contents (should be a Windows path)
    NewStr := Clipboard

    ; Rip out the first 2 chars (should be a drive letter and colon) & convert the letter to lowercase
    ; NOTE: I could probably replace the following 3 lines with a regexreplace, but atm I'm lazy and in a rush.
    tmpVar := SubStr(NewStr, 1, 2)
    StringLower, tmpVar, tmpVar

    ; Replace the uppercase drive letter and colon with the lowercase drive letter and colon
    NewStr := StrReplace(NewStr, SubStr(NewStr, 1, 2), tmpVar)

    ; Replace backslashes with forward slashes
    NewStr := StrReplace(NewStr,  "\", "/")

    ; Replace all colons with nothing
    NewStr := StrReplace(NewStr, ":", "")

    ; Remove the last char if it's a trailing forward slash
    NewStr :=  RegExReplace(NewStr, "/$")

    ; Append a leading forward slash if not already there
    if RegExMatch(NewStr, "^/") == 0
        NewStr :=  "/" . NewStr

    ; If there are any spaces in the path ... wrap in double quotes
    if RegExMatch(NewStr, " ") > 0
        NewStr :=  """" . NewStr . """"

    ; Send the result to the active window
    SendInput % NewStr 

1. return None or return can be used to exit out of a function or program, both does the same thing
2. quit() function can be used, although use of this function is discouraged for making real world applications and should be used only in interpreter.

    import site
    
    def func():
        print("Hi")
        quit()
        print("Bye")

3. exit() function can be used, similar to quit() but the use is discouraged for making real world applications.

import site
    
    def func():
        print("Hi")
        exit()
        print("Bye")

4. sys.exit([arg]) function can be used and need to import sys module for that, this function can be used for real world applications unlike the other two functions.

import sys 
  height = 150
  
if height < 165: # in cm 
      
    # exits the program 
    sys.exit("Height less than 165")     
else: 
    print("You ride the rollercoaster.") 

5. os._exit(n) function can be used to exit from a process, and need to import os module for that.

    <activity
        android:name="MyBookActivity"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.ALTERNATIVE" />
        </intent-filter>
    </activity>

where is your dot before MyBookActivity?

With Firefox and Chrome you can use :

<a href="whatever" target="_parent" onclick="myfunction()">

If myfunction is present both in iframe and in parent, the parent one will be called.

Try

sudo -su db2inst1 /opt/ibm/db2/V9.7/bin/db2 force application \(1995\)

Well, I don't know guys but:

using here python 3.6 and django 2.2

Renaming MIDDLEWARE_CLASSES to MIDDLEWARE in settings.py worked.

Try something like this

    <div id=foo [href]="url" class (click)="alert('hello')" data-hello=world></div>

and then get all attributes

    const foo = document.getElementById('foo');
    // or if you have a jQuery object
    // const foo = $('#foo')[0];

    function getAttributes(el) {
        const attrObj = {};
        if(!el.hasAttributes()) return attrObj;
        for (const attr of el.attributes)
            attrObj[attr.name] = attr.value;
        return attrObj
    }

    // {"id":"foo","[href]":"url","class":"","(click)":"alert('hello')","data-hello":"world"}
    console.log(getAttributes(foo));

for array of attributes use

    // ["id","[href]","class","(click)","data-hello"]
    Object.keys(getAttributes(foo))

You can escape the calc arguments in order to prevent them from being evaluated on compilation.

Using your example, you would simply surround the arguments, like this:

calc(~'100% - 10px')

Demo : http://jsfiddle.net/c5aq20b6/

I find that I use this in one of the following three ways:

Basic Escaping

Everything inside the calc arguments is defined as a string, and is totally static until it's evaluated by the client:

LESS Input

div {
    > span {
        width: calc(~'100% - 10px');
    }
}

CSS Output

div > span {
  width: calc(100% - 10px);
}

Interpolation of Variables

You can insert a LESS variable into the string:

LESS Input

div {
    > span {
        @pad: 10px;
        width: calc(~'100% - @{pad}');
    }
}

CSS Output

div > span {
  width: calc(100% - 10px);
}

Mixing Escaped and Compiled Values

You may want to escape a percentage value, but go ahead and evaluate something on compilation:

LESS Input

@btnWidth: 40px;
div {
    > span {
        @pad: 10px;
        width: calc(~'(100% - @{pad})' - (@btnWidth * 2));
    }
}

CSS Output

div > span {
  width: calc((100% - 10px) - 80px);
}

Source: http://lesscss.org/functions/#string-functions-escape.

You can also add scripts from controller action. Just add this line in an action method then that script will apear only in that view:

Yii::app()->clientScript->registerScriptFile(Yii::app()->request->baseUrl . '/js/custom.js', CClientScript::POS_HEAD);

where POS_HEAD tell framework to put script in head section

Those are Java varargs. They let you pass any number of objects of a specific type (in this case they are of type JID).

In your example, the following function calls would be valid:

MessageBuilder msgBuilder; //There should probably be a call to a constructor here ;)
MessageBuilder msgBuilder2;
msgBuilder.withRecipientJids(jid1, jid2);
msgBuilder2.withRecipientJids(jid1, jid2, jid78_a, someOtherJid);

See more here: http://java.sun.com/j2se/1.5.0/docs/guide/language/varargs.html

In C++11, the using keyword when used for type alias is identical to typedef.

7.1.3.2

A typedef-name can also be introduced by an alias-declaration. The identifier following the using keyword becomes a typedef-name and the optional attribute-specifier-seq following the identifier appertains to that typedef-name. It has the same semantics as if it were introduced by the typedef specifier. In particular, it does not define a new type and it shall not appear in the type-id.

Bjarne Stroustrup provides a practical example:

typedef void (*PFD)(double);    // C style typedef to make `PFD` a pointer to a function returning void and accepting double
using PF = void (*)(double);    // `using`-based equivalent of the typedef above
using P = [](double)->void; // using plus suffix return type, syntax error
using P = auto(double)->void // Fixed thanks to DyP

Pre-C++11, the using keyword can bring member functions into scope. In C++11, you can now do this for constructors (another Bjarne Stroustrup example):

class Derived : public Base { 
public: 
    using Base::f;    // lift Base's f into Derived's scope -- works in C++98
    void f(char);     // provide a new f 
    void f(int);      // prefer this f to Base::f(int) 

    using Base::Base; // lift Base constructors Derived's scope -- C++11 only
    Derived(char);    // provide a new constructor 
    Derived(int);     // prefer this constructor to Base::Base(int) 
    // ...
}; 

Ben Voight provides a pretty good reason behind the rationale of not introducing a new keyword or new syntax. The standard wants to avoid breaking old code as much as possible. This is why in proposal documents you will see sections like Impact on the Standard, Design decisions, and how they might affect older code. There are situations when a proposal seems like a really good idea but might not have traction because it would be too difficult to implement, too confusing, or would contradict old code.

Here is an old paper from 2003 n1449. The rationale seems to be related to templates. Warning: there may be typos due to copying over from PDF.

First let’s consider a toy example:

template <typename T>
class MyAlloc {/*...*/};

template <typename T, class A>
class MyVector {/*...*/};

template <typename T>

struct Vec {
typedef MyVector<T, MyAlloc<T> > type;
};
Vec<int>::type p; // sample usage

The fundamental problem with this idiom, and the main motivating fact for this proposal, is that the idiom causes the template parameters to appear in non-deducible context. That is, it will not be possible to call the function foo below without explicitly specifying template arguments.

template <typename T> void foo (Vec<T>::type&);

So, the syntax is somewhat ugly. We would rather avoid the nested ::type We’d prefer something like the following:

template <typename T>
using Vec = MyVector<T, MyAlloc<T> >; //defined in section 2 below
Vec<int> p; // sample usage

Note that we specifically avoid the term “typedef template” and introduce the new syntax involving the pair “using” and “=” to help avoid confusion: we are not defining any types here, we are introducing a synonym (i.e. alias) for an abstraction of a type-id (i.e. type expression) involving template parameters. If the template parameters are used in deducible contexts in the type expression then whenever the template alias is used to form a template-id, the values of the corresponding template parameters can be deduced – more on this will follow. In any case, it is now possible to write generic functions which operate on Vec<T> in deducible context, and the syntax is improved as well. For example we could rewrite foo as:

template <typename T> void foo (Vec<T>&);

We underscore here that one of the primary reasons for proposing template aliases was so that argument deduction and the call to foo(p) will succeed.

The follow-up paper n1489 explains why using instead of using typedef:

It has been suggested to (re)use the keyword typedef — as done in the paper [4] — to introduce template aliases:

template<class T> 
    typedef std::vector<T, MyAllocator<T> > Vec;

That notation has the advantage of using a keyword already known to introduce a type alias. However, it also displays several disavantages among which the confusion of using a keyword known to introduce an alias for a type-name in a context where the alias does not designate a type, but a template; Vec is not an alias for a type, and should not be taken for a typedef-name. The name Vec is a name for the family std::vector< [bullet] , MyAllocator< [bullet] > > – where the bullet is a placeholder for a type-name. Consequently we do not propose the “typedef” syntax. On the other hand the sentence

template<class T>
    using Vec = std::vector<T, MyAllocator<T> >;

can be read/interpreted as: from now on, I’ll be using Vec<T> as a synonym for std::vector<T, MyAllocator<T> >. With that reading, the new syntax for aliasing seems reasonably logical.

I think the important distinction is made here, aliases instead of types. Another quote from the same document:

An alias-declaration is a declaration, and not a definition. An alias- declaration introduces a name into a declarative region as an alias for the type designated by the right-hand-side of the declaration. The core of this proposal concerns itself with type name aliases, but the notation can obviously be generalized to provide alternate spellings of namespace-aliasing or naming set of overloaded functions (see ? 2.3 for further discussion). [My note: That section discusses what that syntax can look like and reasons why it isn't part of the proposal.] It may be noted that the grammar production alias-declaration is acceptable anywhere a typedef declaration or a namespace-alias-definition is acceptable.

Summary, for the role of using:

• template aliases (or template typedefs, the former is preferred namewise)
• namespace aliases (i.e., namespace PO = boost::program_options and using PO = ... equivalent)
• the document says A typedef declaration can be viewed as a special case of non-template alias-declaration. It's an aesthetic change, and is considered identical in this case.
• bringing something into scope (for example, namespace std into the global scope), member functions, inheriting constructors

It cannot be used for:

int i;
using r = i; // compile-error

Instead do:

using r = decltype(i);

Naming a set of overloads.

// bring cos into scope
using std::cos;

// invalid syntax
using std::cos(double);

// not allowed, instead use Bjarne Stroustrup function pointer alias example
using test = std::cos(double);

You can use normal CSS selectors to select an element by name using jquery. Like this:

Button Code
<button type="button" name="mybutton">Click Me!</button>

Selector & Event Bind Code
$("button[name='mybutton']").click(function() {});

Maybe try using if you need it to be synchronized

http://commons.apache.org/collections/api/org/apache/commons/collections/FastHashMap.html

I modified the PHP answer of Olivier a bit to:

• print out the results in which the string was found
• omit tables without results
• also show output if column names match the search input

• show total number of results

  function searchAllDB($search){
      global $mysqli;
  
      $out = "";
      $total = 0;
      $sql = "SHOW TABLES";
      $rs = $mysqli->query($sql);
      if($rs->num_rows > 0){
          while($r = $rs->fetch_array()){
              $table = $r[0];
              $sql_search = "select * from ".$table." where ";
              $sql_search_fields = Array();
              $sql2 = "SHOW COLUMNS FROM ".$table;
              $rs2 = $mysqli->query($sql2);
              if($rs2->num_rows > 0){
                  while($r2 = $rs2->fetch_array()){
                      $colum = $r2[0];
                      $sql_search_fields[] = $colum." like('%".$search."%')";
                      if(strpos($colum,$search))
                      {
                          echo "FIELD NAME: ".$colum."\n";
                      }
                  }
                  $rs2->close();
              }
              $sql_search .= implode(" OR ", $sql_search_fields);
              $rs3 = $mysqli->query($sql_search);
              if($rs3 && $rs3->num_rows > 0)
              {
                  $out .= $table.": ".$rs3->num_rows."\n";
                  if($rs3->num_rows > 0){
                      $total += $rs3->num_rows;
                      $out.= print_r($rs3->fetch_all(),1);
                      $rs3->close();
                  }
              }
          }
          $out .= "\n\nTotal results:".$total;
          $rs->close();
      }
      return $out;
  }
  

You simply need to use simpleCart

It is a free and open-source javascript shopping cart that easily integrates with your current website.

You will get the full source code at github

Java Function to bring Linux Command Result!

public String RunLinuxCommand(String cmd) throws IOException {

    String linuxCommandResult = "";
    Process p = Runtime.getRuntime().exec(cmd);

    BufferedReader stdInput = new BufferedReader(new InputStreamReader(p.getInputStream()));

    BufferedReader stdError = new BufferedReader(new InputStreamReader(p.getErrorStream()));

    try {
        while ((linuxCommandResult = stdInput.readLine()) != null) {

            return linuxCommandResult;
        }
        while ((linuxCommandResult = stdError.readLine()) != null) {
            return "";
        }
    } catch (Exception e) {
        return "";
    }

    return linuxCommandResult;
}

The expression stringexpression = '' yields:

TRUE   .. for '' (or for any string consisting of only spaces with the data type char(n))
NULL   .. for NULL
FALSE .. for anything else

So to check for: "stringexpression is either NULL or empty":

(stringexpression = '') IS NOT FALSE

Or the reverse approach (may be easier to read):

(stringexpression <> '') IS NOT TRUE

Works for any character type including char(n). The manual about comparison operators.

Or use your original expression without trim(), which is costly noise for char(n) (see below), or incorrect for other character types: strings consisting of only spaces would pass as empty string.

coalesce(stringexpression, '') = ''

But the expressions at the top are faster.

Asserting the opposite is even simpler: "stringexpression is neither NULL nor empty":

stringexpression <> ''

About char(n)

This is about the data type char(n), short for: character(n). (char / character are short for char(1) / character(1).) Its use is discouraged in Postgres:

In most situations text or character varying should be used instead.

Do not confuse char(n) with other, useful, character types varchar(n), varchar, text or "char" (with double-quotes).

In char(n) an empty string is not different from any other string consisting of only spaces. All of these are folded to n spaces in char(n) per definition of the type. It follows logically that the above expressions work for char(n) as well - just as much as these (which wouldn't work for other character types):

coalesce(stringexpression, '  ') = '  '
coalesce(stringexpression, '') = '       '

Demo

Empty string equals any string of spaces when cast to char(n):

SELECT ''::char(5) = ''::char(5)     AS eq1
     , ''::char(5) = '  '::char(5)   AS eq2
     , ''::char(5) = '    '::char(5) AS eq3;

Result:

 eq1 | eq2 | eq3
 ----+-----+----
 t   | t   | t

Test for "null or empty string" with char(n):

SELECT stringexpression 
     , stringexpression = ''                   AS base_test
     , (stringexpression = '')  IS NOT FALSE   AS test1
     , (stringexpression <> '') IS NOT TRUE    AS test2
     , coalesce(stringexpression, '') = ''     AS coalesce1
     , coalesce(stringexpression, '  ') = '  ' AS coalesce2
     , coalesce(stringexpression, '') = '  '   AS coalesce3
FROM  (
   VALUES
     ('foo'::char(5))
   , ('')
   , ('   ')                -- not different from '' in char(n)
   , (NULL)
   ) sub(stringexpression);

Result:

 stringexpression | base_test | test1 | test2 | coalesce1 | coalesce2 | coalesce3 
------------------+-----------+-------+-------+-----------+-----------+-----------
 foo              | f         | f     | f     | f         | f         | f
                  | t         | t     | t     | t         | t         | t
                  | t         | t     | t     | t         | t         | t
 null             | null      | t     | t     | t         | t         | t

Test for "null or empty string" with text:

SELECT stringexpression 
     , stringexpression = ''                   AS base_test
     , (stringexpression = '')  IS NOT FALSE   AS test1
     , (stringexpression <> '') IS NOT TRUE    AS test2
     , coalesce(stringexpression, '') = ''     AS coalesce1
     , coalesce(stringexpression, '  ') = '  ' AS coalesce2
     , coalesce(stringexpression, '') = '  '   AS coalesce3
FROM  (
   VALUES
     ('foo'::text)
   , ('')
   , ('   ')                -- different from '' in a sane character types
   , (NULL)
   ) sub(stringexpression);

Result:

 stringexpression | base_test | test1 | test2 | coalesce1 | coalesce2 | coalesce3 
------------------+-----------+-------+-------+-----------+-----------+-----------
 foo              | f         | f     | f     | f         | f         | f
                  | t         | t     | t     | t         | f         | f
                  | f         | f     | f     | f         | f         | f
 null             | null      | t     | t     | t         | t         | f

db<>fiddle here
_{Old sqlfiddle}

Related:

• Any downsides of using data type "text" for storing strings?

If you just need to print present working directory then you can follow this.

$ vim test

#!/bin/bash
pwd
:wq to save the test file.

Give execute permission:

chmod u+x test

Then execute the script by ./test then you can see the present working directory.

Better approach may be a polyfill like this

jQuery.fn.load = function(callback){ $(window).on("load", callback) };

With this you can leave the legacy code untouched. If you use webpack be sure to use script-loader.

To see the current locale information use locale command. Below is an example on RHEL 7.8

[usr@host ~]$ locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=

I'd rather tab indentation not work than breaking tabbing between form items.

If you want to indent to put in code in the Markdown box, use Ctrl+K (or ?K on a Mac).

In terms of actually stopping the action, jQuery (which Stack Overflow uses) will stop an event from bubbling when you return false from an event callback. This makes life easier for working with multiple browsers.

Are you tied to this library? Google Gson is very popular. I have myself not used it with Generics but their front page says Gson considers support for Generics very important.

Div tags are easy to spot for me. Just download the file, scan it or so with netbeans, then continue debugging it. Or you can use the Google chrome developer kit, and view the page source. I'm a bit of a weird developer, I don't always use the "best" stuff. But it works for me.

I'll link you with some developer stuff I use

http://www.coffeecup.com/free-editor/

http://www.netbeans.org

Those are just a few of the good ones out there. I'm open to more suggestions to this list :D

Happy programming

-skycoder

If you want to hide the cursor in the entire webpage, using body will not work unless it covers the entire visible page, which is not always the case. To make sure the cursor is hidden everywhere in the page, use:

document.documentElement.style.cursor = 'none';

To reenable it:

document.documentElement.style.cursor = 'auto';

The analogue with static CSS notation is in the answer by Pavel Salaquarda (in essence: html * {cursor:none})

<body onLoad="self.focus();document.formname.name.focus()" >

formname is <form action="xxx.php" method="POST" name="formname" >
and name is <input type="text" tabindex="1" name="name" />

it works for me, checked using IE and mozilla.
autofocus, somehow didn't work for me.

End of the user session means when the browser is shut down.

Read this: http://en.wikipedia.org/wiki/HTTP_cookie#Expires_and_Max-Age

The regex [^ab] will match for example 'ab ab ab ab' but not 'ab', because it will match on the string ' a' or 'b '.

What language/scenario do you have? Can you subtract results from the original set, and just match ab?

If you are using GNU grep, and are parsing input, use the '-v' flag to invert your results, returning all non-matches. Other regex tools also have a 'return nonmatch' function, too.

If I understand correctly, you want everything except for those items which contain 'ab' anywhere.

Use empty() and/or is_null()

http://www.php.net/empty http://www.php.net/is_null

Empty alone will achieve your current usage, is_null would just make more control possible if you wanted to distinguish between a field that is null and a field that is empty.

Random random = new Random();
double percent = 10.0; //10.0%
if (random.nextDouble() * 100D < percent) {
    //do
}

This class was deprecated in API level 26. ProgressDialog is a modal dialog, which prevents the user from interacting with the app. Instead of using this class, you should use a progress indicator like ProgressBar, which can be embedded in your app's UI. Alternatively, you can use a notification to inform the user of the task's progress. link

It's deprecated at Android O because of Google new UI standard