Use data type LONGBLOB instead of BLOB in your database table.

I have finally got this working. It expands on the solution from A. Garcia, however, since the problem lies in the hibernate type MaterializedBlob type just mapping Blob > bytea is not sufficient, we need a replacement for MaterializedBlobType which works with hibernates broken blob support. This implementation only works with bytea, but maybe the guy from the JIRA issue who wanted OID could contribute an OID implementation.

Sadly replacing these types at runtime is a pain, since they should be part of the Dialect. If only this JIRA enhanement gets into 3.6 it would be possible.

public class PostgresqlMateralizedBlobType extends AbstractSingleColumnStandardBasicType<byte[]> {
 public static final PostgresqlMateralizedBlobType INSTANCE = new PostgresqlMateralizedBlobType();

 public PostgresqlMateralizedBlobType() {
  super( PostgresqlBlobTypeDescriptor.INSTANCE, PrimitiveByteArrayTypeDescriptor.INSTANCE );
 }

  public String getName() {
   return "materialized_blob";
  }
}

Much of this could probably be static (does getBinder() really need a new instance?), but I don't really understand the hibernate internal so this is mostly copy + paste + modify.

public class PostgresqlBlobTypeDescriptor extends BlobTypeDescriptor implements SqlTypeDescriptor {
  public static final BlobTypeDescriptor INSTANCE = new PostgresqlBlobTypeDescriptor();

  public <X> ValueBinder<X> getBinder(final JavaTypeDescriptor<X> javaTypeDescriptor) {
   return new PostgresqlBlobBinder<X>(javaTypeDescriptor, this);
  }
  public <X> ValueExtractor<X> getExtractor(final JavaTypeDescriptor<X> javaTypeDescriptor) {
   return new BasicExtractor<X>( javaTypeDescriptor, this ) {
    protected X doExtract(ResultSet rs, String name, WrapperOptions options) throws SQLException { 
      return (X)rs.getBytes(name);
    }
   };
  }
}

public class PostgresqlBlobBinder<J> implements ValueBinder<J> {
 private final JavaTypeDescriptor<J> javaDescriptor;
 private final SqlTypeDescriptor sqlDescriptor;

 public PostgresqlBlobBinder(JavaTypeDescriptor<J> javaDescriptor, SqlTypeDescriptor sqlDescriptor) { 
  this.javaDescriptor = javaDescriptor; this.sqlDescriptor = sqlDescriptor;
 }  
 ...
 public final void bind(PreparedStatement st, J value, int index, WrapperOptions options) 
 throws SQLException {
  st.setBytes(index, (byte[])value);
 }
}

As described in the API of java.sql.PreparedStatement.setBinaryStream() it is available since 1.6 so it is a JDBC 4.0 API! You use a JDBC 3 Driver so this method is not available!

There can be a difference for loops. This is the practical application of post/pre-increment.

        int i = 0;
        while(i++ <= 10) {
            Console.Write(i);
        }
        Console.Write(System.Environment.NewLine);

        i = 0;
        while(++i <= 10) {
            Console.Write(i);
        }
        Console.ReadLine();

While the first one counts to 11 and loops 11 times, the second does not.

Mostly this is rather used in a simple while(x-- > 0 ) ; - - Loop to iterate for example all elements of an array (exempting foreach-constructs here).

I think this is easy way to drop the index.

set FOREIGN_KEY_CHECKS=0; //disable checks

ALTER TABLE mytable DROP INDEX AID;

set FOREIGN_KEY_CHECKS=1; //enable checks

You say you want to sort by value, but you don't have that in your code. Pass a lambda (or method reference) to sorted to tell it how you want to sort.

And you want to get the keys; use map to transform entries to keys.

List<Type> types = countByType.entrySet().stream()
        .sorted(Comparator.comparing(Map.Entry::getValue))
        .map(Map.Entry::getKey)
        .collect(Collectors.toList());

There's also str_pad

<?php
$input = "Alien";
echo str_pad($input, 10);                      // produces "Alien     "
echo str_pad($input, 10, "-=", STR_PAD_LEFT);  // produces "-=-=-Alien"
echo str_pad($input, 10, "_", STR_PAD_BOTH);   // produces "__Alien___"
echo str_pad($input, 6 , "___");               // produces "Alien_"
?>

Maybe not the most elegant solution, but works with * and spaces:

IN="bla@so me.com;*;[email protected]"
for i in `delims=${IN//[^;]}; seq 1 $((${#delims} + 1))`
do
   echo "> [`echo $IN | cut -d';' -f$i`]"
done

Outputs

> [bla@so me.com]
> [*]
> [[email protected]]

Other example (delimiters at beginning and end):

IN=";bla@so me.com;*;[email protected];"
> []
> [bla@so me.com]
> [*]
> [[email protected]]
> []

Basically it removes every character other than ; making delims eg. ;;;. Then it does for loop from 1 to number-of-delimiters as counted by ${#delims}. The final step is to safely get the $ith part using cut.

As per my knowledge Inline sytle comes first so css class should not work.

Use Jquery as

$(document).ready(function(){

   $("#demoFour li").css("display","inline");
  });

You can also try 

#demoFour li { display:inline !important;}

I found this in the Cheetah source code (here)

htmlCodes = [
    ['&', '&'],
    ['<', '&lt;'],
    ['>', '&gt;'],
    ['"', '&quot;'],
]
htmlCodesReversed = htmlCodes[:]
htmlCodesReversed.reverse()
def htmlDecode(s, codes=htmlCodesReversed):
    """ Returns the ASCII decoded version of the given HTML string. This does
        NOT remove normal HTML tags like <p>. It is the inverse of htmlEncode()."""
    for code in codes:
        s = s.replace(code[1], code[0])
    return s

not sure why they reverse the list, I think it has to do with the way they encode, so with you it may not need to be reversed. Also if I were you I would change htmlCodes to be a list of tuples rather than a list of lists... this is going in my library though :)

i noticed your title asked for encode too, so here is Cheetah's encode function.

def htmlEncode(s, codes=htmlCodes):
    """ Returns the HTML encoded version of the given string. This is useful to
        display a plain ASCII text string on a web page."""
    for code in codes:
        s = s.replace(code[0], code[1])
    return s

UPDATE 2

@Override
    protected void onResume() {
        super.onResume();
        mUserNameEdit.requestFocus();

        mUserNameEdit.postDelayed(new Runnable() {

            @Override
            public void run() {
                // TODO Auto-generated method stub
                InputMethodManager keyboard = (InputMethodManager)
                getSystemService(Context.INPUT_METHOD_SERVICE);
                keyboard.showSoftInput(mUserNameEdit, 0);
            }
        },200); //use 300 to make it run when coming back from lock screen
    }

I tried very hard and found out a solution ... whenever a new activity starts then keyboard cant open but we can use Runnable in onResume and it is working fine so please try this code and check...

UPDATE 1

add this line in your AppLogin.java

mUserNameEdit.requestFocus();

and this line in your AppList.java

listview.requestFocus()'

after this check your application if it is not working then add this line in your AndroidManifest.xml file

<activity android:name=".AppLogin" android:configChanges="keyboardHidden|orientation"></activity>
<activity android:name=".AppList" android:configChanges="keyboard|orientation"></activity>

ORIGINAL ANSWER

 InputMethodManager imm = (InputMethodManager)this.getSystemService(Service.INPUT_METHOD_SERVICE);

for hide keyboard

 imm.hideSoftInputFromWindow(ed.getWindowToken(), 0); 

for show keyboard

 imm.showSoftInput(ed, 0);

for focus on EditText

 ed.requestFocus();

where ed is EditText

It seems that GSon don't support JAXB. By using JAXB annotated class to create or process the JSON message, I can share the same class to create the Restful Web Service interface by using spring MVC.

After stripping all characters except '+' and digits from your input, this should do it:

^\+[1-9]{1}[0-9]{3,14}$

If you want to be more exact with the country codes see this question on List of phone number country codes

However, I would try to be not too strict with my validation. Users get very frustrated if they are told their valid numbers are not acceptable.

For those trying to make the connection between SNR and a normal random variable generated by numpy:

[1] , where it's important to keep in mind that P is average power.

Or in dB:
[2]

In this case, we already have a signal and we want to generate noise to give us a desired SNR.

While noise can come in different flavors depending on what you are modeling, a good start (especially for this radio telescope example) is Additive White Gaussian Noise (AWGN). As stated in the previous answers, to model AWGN you need to add a zero-mean gaussian random variable to your original signal. The variance of that random variable will affect the average noise power.

For a Gaussian random variable X, the average power , also known as the second moment, is
[3]

So for white noise, and the average power is then equal to the variance .

When modeling this in python, you can either
1. Calculate variance based on a desired SNR and a set of existing measurements, which would work if you expect your measurements to have fairly consistent amplitude values.
2. Alternatively, you could set noise power to a known level to match something like receiver noise. Receiver noise could be measured by pointing the telescope into free space and calculating average power.

Either way, it's important to make sure that you add noise to your signal and take averages in the linear space and not in dB units.

Here's some code to generate a signal and plot voltage, power in Watts, and power in dB:

# Signal Generation
# matplotlib inline

import numpy as np
import matplotlib.pyplot as plt

t = np.linspace(1, 100, 1000)
x_volts = 10*np.sin(t/(2*np.pi))
plt.subplot(3,1,1)
plt.plot(t, x_volts)
plt.title('Signal')
plt.ylabel('Voltage (V)')
plt.xlabel('Time (s)')
plt.show()

x_watts = x_volts ** 2
plt.subplot(3,1,2)
plt.plot(t, x_watts)
plt.title('Signal Power')
plt.ylabel('Power (W)')
plt.xlabel('Time (s)')
plt.show()

x_db = 10 * np.log10(x_watts)
plt.subplot(3,1,3)
plt.plot(t, x_db)
plt.title('Signal Power in dB')
plt.ylabel('Power (dB)')
plt.xlabel('Time (s)')
plt.show()

Here's an example for adding AWGN based on a desired SNR:

# Adding noise using target SNR

# Set a target SNR
target_snr_db = 20
# Calculate signal power and convert to dB 
sig_avg_watts = np.mean(x_watts)
sig_avg_db = 10 * np.log10(sig_avg_watts)
# Calculate noise according to [2] then convert to watts
noise_avg_db = sig_avg_db - target_snr_db
noise_avg_watts = 10 ** (noise_avg_db / 10)
# Generate an sample of white noise
mean_noise = 0
noise_volts = np.random.normal(mean_noise, np.sqrt(noise_avg_watts), len(x_watts))
# Noise up the original signal
y_volts = x_volts + noise_volts

# Plot signal with noise
plt.subplot(2,1,1)
plt.plot(t, y_volts)
plt.title('Signal with noise')
plt.ylabel('Voltage (V)')
plt.xlabel('Time (s)')
plt.show()
# Plot in dB
y_watts = y_volts ** 2
y_db = 10 * np.log10(y_watts)
plt.subplot(2,1,2)
plt.plot(t, 10* np.log10(y_volts**2))
plt.title('Signal with noise (dB)')
plt.ylabel('Power (dB)')
plt.xlabel('Time (s)')
plt.show()

And here's an example for adding AWGN based on a known noise power:

# Adding noise using a target noise power

# Set a target channel noise power to something very noisy
target_noise_db = 10

# Convert to linear Watt units
target_noise_watts = 10 ** (target_noise_db / 10)

# Generate noise samples
mean_noise = 0
noise_volts = np.random.normal(mean_noise, np.sqrt(target_noise_watts), len(x_watts))

# Noise up the original signal (again) and plot
y_volts = x_volts + noise_volts

# Plot signal with noise
plt.subplot(2,1,1)
plt.plot(t, y_volts)
plt.title('Signal with noise')
plt.ylabel('Voltage (V)')
plt.xlabel('Time (s)')
plt.show()
# Plot in dB
y_watts = y_volts ** 2
y_db = 10 * np.log10(y_watts)
plt.subplot(2,1,2)
plt.plot(t, 10* np.log10(y_volts**2))
plt.title('Signal with noise')
plt.ylabel('Power (dB)')
plt.xlabel('Time (s)')
plt.show()

If you're not bound to Eclipse for reasons like work, some plug-in\functionality you need that's only available through Eclipse and so forth; then one a possible strategy is to get rid of Eclipse altogether. This will speed up things tremendously.

You could switch to any other IDE or development environment that does what you need. One example would be NetBeans. Some proposed speed-ups also apply to NetBeans, or any other IDE for that matter.

One example that applies directly to Linux, is to move as much as possible to a tmpfs mount. For Java development in NetBeans, I've moved the Java documentation and source to a tmpfs mount which resulted in an enormous performance boost.

Likewise, during C++ development I'll make sure the whole source tree is in my tmpfs mount if possible. Although I haven't extensively benchmarked build performance, a few tests on a reasonably sized codebase (few hundred source files + headers) resulted in a >50% decrease in compilation time.

Do keep in mind that your data will not persist during a power loss when using this method. To combat this, one could create a script that rsyncs the tmpfs mount to some backup-directory and add that script as a cronjob that runs every minute.

In my Notepad++ 7.2.2, the Preferences section it's a bit different.

The option is located at: Settings / Preferences / Language / Replace by space as in the Screenshot.

Based on @md-nazrul-islam reply, This is what I did with SCSS:

ul.ui-autocomplete {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    float: left;
    display: none;
    min-width: 160px;
    margin: 0 0 10px 25px;
    list-style: none;
    background-color: #ffffff;
    border: 1px solid #ccc;
    border-color: rgba(0, 0, 0, 0.2);
    //@include border-radius(5px);
    @include box-shadow( rgba(0, 0, 0, 0.1) 0 5px 10px );
    @include background-clip(padding-box);
    *border-right-width: 2px;
    *border-bottom-width: 2px;

    li.ui-menu-item{
        padding:0 .5em;
        line-height:2em;
        font-size:.8em;
        &.ui-state-focus{
            background: #F7F7F7;
        }
    }

}

With OpenTURNS, I would use the BIC criteria to select the best distribution that fits such data. This is because this criteria does not give too much advantage to the distributions which have more parameters. Indeed, if a distribution has more parameters, it is easier for the fitted distribution to be closer to the data. Moreover, the Kolmogorov-Smirnov may not make sense in this case, because a small error in the measured values will have a huge impact on the p-value.

To illustrate the process, I load the El-Nino data, which contains 732 monthly temperature measurements from 1950 to 2010:

import statsmodels.api as sm
dta = sm.datasets.elnino.load_pandas().data
dta['YEAR'] = dta.YEAR.astype(int).astype(str)
dta = dta.set_index('YEAR').T.unstack()
data = dta.values

It is easy to get the 30 of built-in univariate factories of distributions with the GetContinuousUniVariateFactories static method. Once done, the BestModelBIC static method returns the best model and the corresponding BIC score.

sample = ot.Sample([[p] for p in data]) # data reshaping
tested_factories = ot.DistributionFactory.GetContinuousUniVariateFactories()
best_model, best_bic = ot.FittingTest.BestModelBIC(sample,
                                                   tested_factories)
print("Best=",best_model)

which prints:

Best= Beta(alpha = 1.64258, beta = 2.4348, a = 18.936, b = 29.254)

In order to graphically compare the fit to the histogram, I use the drawPDF methods of the best distribution.

import openturns.viewer as otv
graph = ot.HistogramFactory().build(sample).drawPDF()
bestPDF = best_model.drawPDF()
bestPDF.setColors(["blue"])
graph.add(bestPDF)
graph.setTitle("Best BIC fit")
name = best_model.getImplementation().getClassName()
graph.setLegends(["Histogram",name])
graph.setXTitle("Temperature (°C)")
otv.View(graph)

This produces:

More details on this topic are presented in the BestModelBIC doc. It would be possible to include the Scipy distribution in the SciPyDistribution or even with ChaosPy distributions with ChaosPyDistribution, but I guess that the current script fulfills most practical purposes.

You could add your JSON file as an external using webpack config. Then you can load up that json in any of your react modules.

Take a look at this answer

If you are using Java 8+ and need a 2 dimensional Array, perhaps for TestNG data providers, you can try:

map.entrySet()
    .stream()
    .map(e -> new Object[]{e.getKey(), e.getValue()})
    .toArray(Object[][]::new);

If your Objects are Strings and you need a String[][], try:

map.entrySet()
    .stream()
    .map(e -> new String[]{e.getKey(), e.getValue().toString()})
    .toArray(String[][]::new);

You can combine it with selected and hidden

<select class="dropdown" style="width: 150px; height: 26px">
        <option selected hidden>What is your name?</option>
        <option value="michel">Michel</option>
        <option value="thiago">Thiago</option>
        <option value="Jonson">Jonson</option>
</select>

Your dropdown title will be selected and cannot chose by the user.

Just replace -H with -h. Check man grep for more details on options

find . -name '*.bar' -exec grep -hn FOO {} \;

If you are using Sql Server 2005 you can use table valued functions. You can call these directly and pass paramters, whilst treating them as if they were tables.

For more info check out Table-Valued User-Defined Functions

Given returned json from your://site.com:

[{text:"Text1", val:"Value1"},
{text:"Text2", val:"Value2"},
{text:"Text3", val:"Value3"}]

Use this:

    $.getJSON("your://site.com", function(json){
            $('#select').empty();
            $('#select').append($('<option>').text("Select"));
            $.each(json, function(i, obj){
                    $('#select').append($('<option>').text(obj.text).attr('value', obj.val));
            });
    });

Try this...

SELECT TO_CHAR(column_name,'99G999D99MI')
as format_column
FROM DUAL;

$('body').bind('beforeunload',function(){
   //do something
});

But this wont save any info for later, unless you were planning on saving that in a cookie somewhere (or local storage) and the unload event does not always fire in all browsers.

Example: http://jsfiddle.net/maniator/qpK7Y/

Code:

$(window).bind('beforeunload',function(){

     //save info somewhere

    return 'are you sure you want to leave?';

});

Instead of using a UIView, as @ImreKelényi suggests, you can use a CALayer:

// Add a bottomBorder.
CALayer *bottomBorder = [CALayer layer];

bottomBorder.frame = CGRectMake(0.0f, 43.0f, toScrollView.frame.size.width, 1.0f);

bottomBorder.backgroundColor = [UIColor colorWithWhite:0.8f 
                                                 alpha:1.0f].CGColor;

[toScrollView.layer addSublayer:bottomBorder];

Try:

self.request.get('sports_played', allow_multiple=True)

or

self.request.POST.getall('sports_played')

More specifically:

When you are reading data from the checkbox array, make sure array has:

len>0 

In this case:

len(self.request.get('array', allow_multiple=True)) > 0

Wanted to add a solution for IE8 and below (as low as IE5.5 I think), which cannot use background-size

div{
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src=
'/path/to/img.jpg', sizingMethod='scale');
}

very simple just add this to your bound field DataFormatString="{0: yyyy/MM/dd}"

I would re-write the original target test, taking care the needed variable is defined IN THE SAME SUB-PROCESS as the application to launch:

test:
    ( NODE_ENV=test mocha --harmony --reporter spec test )

If you're talking about an HTTP request, you can find the request host in:

request.headers.host

But that relies on an incoming request.

More at http://nodejs.org/docs/v0.4.12/api/http.html#http.ServerRequest

If you're looking for machine/native information, try the process object.

The correct CSS for setting font-size is "font-size: 35px". I.e.:

 <td style="padding-left: 5px; padding-bottom:3px; font size: 35px;">

Note that this sets the font size in pixels. You can also set it in *em*s or percentage. Learn more about fonts in CSS here: http://www.w3schools.com/css/css_font.asp

You don't need to use arrays.

JSON values can be arrays, objects, or primitives (numbers or strings).

You can write JSON like this:

{ 
    "stuff": {
        "onetype": [
            {"id":1,"name":"John Doe"},
            {"id":2,"name":"Don Joeh"}
        ],
        "othertype": {"id":2,"company":"ACME"}
    }, 
    "otherstuff": {
        "thing": [[1,42],[2,2]]
     }
}

You can use it like this:

obj.stuff.onetype[0].id
obj.stuff.othertype.id
obj.otherstuff.thing[0][1]  //thing is a nested array or a 2-by-2 matrix.
                            //I'm not sure whether you intended to do that.

My two cents showing how to use the Google Charts API to solve this problem.

This is the best way IMO. No need for properties, or readonly:

public static class Constants
{
   public const string SomeConstant = "Some value";
}

If you are ever wondering how to read a file from server this code might be helpful.

Restrictions :

1. File should be in the server (Local/Remote).
2. You will have to setup headers or have CORS google plugin.

<Head>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
    <script lang="javascript" src="https://cdnjs.cloudflare.com/ajax/libs/xlsx/0.12.4/xlsx.core.min.js"></script>
</head>

<body>
    <script>
    /* set up XMLHttpRequest */


    // replace it with your file path in local server
    var url = "http://localhost/test.xlsx";

    var oReq = new XMLHttpRequest();
    oReq.open("GET", url, true);
    oReq.responseType = "arraybuffer";

    oReq.onload = function(e) {
        var arraybuffer = oReq.response;

        /* convert data to binary string */
        var data = new Uint8Array(arraybuffer);

        var arr = new Array();
        for (var i = 0; i != data.length; ++i) {
            arr[i] = String.fromCharCode(data[i]);
        }

        var bstr = arr.join("");

        var cfb = XLSX.read(bstr, { type: 'binary' });

        cfb.SheetNames.forEach(function(sheetName, index) {

            // Obtain The Current Row As CSV
            var fieldsObjs = XLS.utils.sheet_to_json(cfb.Sheets[sheetName]);

            fieldsObjs.map(function(field) {
                $("#my_file_output").append('<input type="checkbox" value="' + field.Fields + '">' + field.Fields + '<br>');
            });

        });
    }

    oReq.send();
    </script>
</body>
<div id="my_file_output">
</div>

</html>

The easiest correct way to convert JS Date to SQL datetime format that occur to me is this one. It correctly handles timezone offset.

const toSqlDatetime = (inputDate) => {
    const date = new Date(inputDate)
    const dateWithOffest = new Date(date.getTime() - (date.getTimezoneOffset() * 60000))
    return dateWithOffest
        .toISOString()
        .slice(0, 19)
        .replace('T', ' ')
}

toSqlDatetime(new Date()) // 2019-08-07 11:58:57
toSqlDatetime(new Date('2016-6-23 1:54:16')) // 2016-06-23 01:54:16

Beware that @Paulo Roberto answer will produce incorrect results at the turn on new day (i can't leave comments). For example:

var d = new Date('2016-6-23 1:54:16'),
    finalDate = d.toISOString().split('T')[0]+' '+d.toTimeString().split(' ')[0];
console.log(finalDate); // 2016-06-22 01:54:16 

We've got 22 June instead of 23!

If you want to refresh the entire page, it makes no sense to use AJAX. Use normal Javascript to post the form element in that page. Make sure the form submits to the same page, or that the form submits to a page which then redirects back to that page

Javascript to be used (always in myForm.php):

function submitform()
{
  document.getElementById('myForm').submit();
}

Suppose your form is on myForm.php: Method 1:

<form action="./myForm.php" method="post" id="myForm">
    ...
</form>

Method 2:

myForm.php:

<form action="./myFormActor.php" method="post" id="myForm">
    ...
</form>

myFormActor.php:

<?php
    //all code here, no output
    header("Location: ./myForm.php");
?>

You cannot create a primary key on a view. In SQL Server you can create an index on a view but that is different to creating a primary key.

If you give us more information as to why you want a key on your view, perhaps we can help with that.

The current spec says this regarding flex: 1 1 auto:

Sizes the item based on the width/height properties, but makes them fully flexible, so that they absorb any free space along the main axis. If all items are either flex: auto, flex: initial, or flex: none, any positive free space after the items have been sized will be distributed evenly to the items with flex: auto.

http://www.w3.org/TR/2012/CR-css3-flexbox-20120918/#flex-common

It sounds to me like if you say an element is 100px tall, it is treated more like a "suggested" size, not an absolute. Because it is allowed to shrink and grow, it takes up as much space as its allowed to. That's why adding this line to your "main" element works: height: 0 (or any other smallish number).

startdate = moment().subtract(1, 'days').startOf('day')

Simple way to ask permission by avoiding writing lots of code,

https://github.com/sachinvarma/EasyPermission

How to add :

repositories {
        maven { url "https://jitpack.io" }
    }

implementation 'com.github.sachinvarma:EasyPermission:1.0.1'

How to ask permission:

 List<String> permission = new ArrayList<>();
 permission.add(EasyPermissionList.READ_EXTERNAL_STORAGE);
 permission.add(EasyPermissionList.ACCESS_FINE_LOCATION);

 new EasyPermissionInit(MainActivity.this, permission);

Hoping it will be helpful for someone.

This is not an answer to the question, but I couldn't figure out how to get decent code formatting in a comment above... so auto-down-reputation-be-damned here's my comment.

I have the recipe submtted by @Dobes in a fancy shmancy [alias] entry in my .gitconfig:

# to untrack a local branch when I can't remember 'git config --unset'
cbr = "!f(){ git symbolic-ref -q HEAD 2>/dev/null | sed -e 's|refs/heads/||'; }; f"
bruntrack = "!f(){ br=${1:-`git cbr`};  \
    rm=`git config --get branch.$br.remote`; \
    tr=`git config --get branch.$br.merge`; \
    [ $rm:$tr = : ] && echo \"# untrack: not a tracking branch: $br\" && return 1; \
    git config --unset branch.$br.remote; git config --unset branch.$br.merge; \
    echo \"# untrack: branch $br no longer tracking $rm:$tr\"; return 0; }; f"

Then I can just run

$ git bruntrack branchname

You can make a div that has the same attributes as the <hr> tag. This way it is fully able to be customized. Here is some sample code:

The HTML:

<h3>This is a header.</h3>
<div class="customHr">.</div>

<p>Here is some sample paragraph text.<br>
This demonstrates what could go below a custom hr.</p>

The CSS:

.customHr {
    width: 95%
    font-size: 1px;
    color: rgba(0, 0, 0, 0);
    line-height: 1px;

    background-color: grey;
    margin-top: -6px;
    margin-bottom: 10px;
}

To see how the project turns out, here is a JSFiddle for the above code: http://jsfiddle.net/SplashHero/qmccsc06/1/

This problem happened with me when I used jQUery Fancybox inside a website with many others jQuery plugins. When I used the LightBox (site here) instead of Fancybox, the problem is gone.

I had the same issue in Win7 regarding running a script (.bat) at startup (When the computer boots vs when someone logs in) that would modify the network parameters using netsh. What ended up working for me was the following:

1. Log in with an Administrator account
2. Click on start and type “Task Scheduler” and hit return
3. Click on “Task Scheduler Library”

4. Click on “Create New Task” on the right hand side of the screen and set the parameters as follows:

   a. Set the user account to SYSTEM

   b. Choose "Run with highest privileges"

   c. Choose the OS for Windows7

5. Click on “Triggers” tab and then click on “New…” Choose “At Startup” from the drop down menu, click Enabled and hit OK
6. Click on the “Actions tab” and then click on “New…” If you are running a .bat file use cmd as the program the put /c .bat In the Add arguments field
7. Click on “OK” then on “OK” on the create task panel and it will now be scheduled.
8. Add the .bat script to the place specified in your task event.
9. Enjoy.

os.system is equivalent to Unix system command, while subprocess was a helper module created to provide many of the facilities provided by the Popen commands with an easier and controllable interface. Those were designed similar to the Unix Popen command.

system() executes a command specified in command by calling /bin/sh -c command, and returns after the command has been completed

Whereas:

The popen() function opens a process by creating a pipe, forking, and invoking the shell.

If you are thinking which one to use, then use subprocess definitely because you have all the facilities for execution, plus additional control over the process.

Yes, you are using it incorrectly, Series.replace() is not inplace operation by default, it returns the replaced dataframe/series, you need to assign it back to your dataFrame/Series for its effect to occur. Or if you need to do it inplace, you need to specify the inplace keyword argument as True Example -

data['sex'].replace(0, 'Female',inplace=True)
data['sex'].replace(1, 'Male',inplace=True)

Also, you can combine the above into a single replace function call by using list for both to_replace argument as well as value argument , Example -

data['sex'].replace([0,1],['Female','Male'],inplace=True)

Example/Demo -

In [10]: data = pd.DataFrame([[1,0],[0,1],[1,0],[0,1]], columns=["sex", "split"])

In [11]: data['sex'].replace([0,1],['Female','Male'],inplace=True)

In [12]: data
Out[12]:
      sex  split
0    Male      0
1  Female      1
2    Male      0
3  Female      1

You can also use a dictionary, Example -

In [15]: data = pd.DataFrame([[1,0],[0,1],[1,0],[0,1]], columns=["sex", "split"])

In [16]: data['sex'].replace({0:'Female',1:'Male'},inplace=True)

In [17]: data
Out[17]:
      sex  split
0    Male      0
1  Female      1
2    Male      0
3  Female      1

With version 1.9.3.Final, Keycloak has a number of OpenID endpoints available. These can be found at /auth/realms/{realm}/.well-known/openid-configuration. Assuming your realm is named demo, that endpoint will produce a JSON response similar to this.

{
  "issuer": "http://localhost:8080/auth/realms/demo",
  "authorization_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/auth",
  "token_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/token",
  "token_introspection_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/token/introspect",
  "userinfo_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/userinfo",
  "end_session_endpoint": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/logout",
  "jwks_uri": "http://localhost:8080/auth/realms/demo/protocol/openid-connect/certs",
  "grant_types_supported": [
    "authorization_code",
    "implicit",
    "refresh_token",
    "password",
    "client_credentials"
  ],
  "response_types_supported": [
    "code",
    "none",
    "id_token",
    "token",
    "id_token token",
    "code id_token",
    "code token",
    "code id_token token"
  ],
  "subject_types_supported": [
    "public"
  ],
  "id_token_signing_alg_values_supported": [
    "RS256"
  ],
  "response_modes_supported": [
    "query",
    "fragment",
    "form_post"
  ],
  "registration_endpoint": "http://localhost:8080/auth/realms/demo/clients-registrations/openid-connect"
}

As far as I have found, these endpoints implement the Oauth 2.0 spec.

Works in IE9 documentMode for me.

Without a X-UA-Compatible header/meta to set an explicit documentMode, you'll get a mode based on:

• whether the user has clicked the ‘compatibility view’ button in that domain before;
• perhaps also whether this has happened automatically due to some other content on the site causing IE8/9's renderer to crash and fall back to the old renderer;
• whether the user has opted to put all sites in compatibility view by default;
• whether IE thinks the site is on your intranet and so defaults to compatibility view;
• whether the site in question is in Microsoft's own list of websites that require compatibility view.

You can change these settings from ‘Tools -> Compatibility view settings’ from the IE menu. Of course that menu is now sneakily hidden, so you won't see it until you press Alt.

As a site author, if you're confident that your site complies to standards (renders well in other browsers, and uses feature-sniffing to decide what browser workarounds to use), I suggest using:

<meta http-equiv="X-UA-Compatible" content="IE=Edge"/>

or the HTTP header:

X-UA-Compatible: IE=Edge

to get the latest renderer whatever IE version is in use.

It took me like an hour to figure it out, but trailing commas (which work in JavaScript) fail in PHP.
This is what fixed it for me:

str_replace([PHP_EOL, ",}"], ["", "}"], $JSON);

Very easy if you are already using a statelessWidget checkOut my code

class _MyThirdPage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Understanding Material-Cards'),
      ),
      body: SingleChildScrollView(
          child: Column(
        children: <Widget>[
          _buildStack(),
          _buildCard(),
          SingleCard(),
          _inkwellCard()
        ],
      )),
    );
  }
}

turn on display errors in your ini

http://www.php.net/manual/en/errorfunc.configuration.php#ini.display-errors

This is what the res.locals object is for. Setting variables directly on the request object is not supported or documented. res.locals is guaranteed to hold state over the life of a request.

res.locals

An object that contains response local variables scoped to the request, and therefore available only to the view(s) rendered during that request / response cycle (if any). Otherwise, this property is identical to app.locals.

This property is useful for exposing request-level information such as the request path name, authenticated user, user settings, and so on.

app.use(function(req, res, next) {
    res.locals.user = req.user;  
    res.locals.authenticated = !req.user.anonymous;
    next();
});

To retrieve the variable in the next middleware:

app.use(function(req, res, next) {
    if (res.locals.authenticated) {
        console.log(res.locals.user.id);
    }
    next();
});

I've had to do something like this when using commons-httpclient to access an internal https server with a self-signed certificate. Yes, our solution was to create a custom TrustManager that simply passed everything (logging a debug message).

This comes down to having our own SSLSocketFactory that creates SSL sockets from our local SSLContext, which is set up to have only our local TrustManager associated with it. You don't need to go near a keystore/certstore at all.

So this is in our LocalSSLSocketFactory:

static {
    try {
        SSL_CONTEXT = SSLContext.getInstance("SSL");
        SSL_CONTEXT.init(null, new TrustManager[] { new LocalSSLTrustManager() }, null);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("Unable to initialise SSL context", e);
    } catch (KeyManagementException e) {
        throw new RuntimeException("Unable to initialise SSL context", e);
    }
}

public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
    LOG.trace("createSocket(host => {}, port => {})", new Object[] { host, new Integer(port) });

    return SSL_CONTEXT.getSocketFactory().createSocket(host, port);
}

Along with other methods implementing SecureProtocolSocketFactory. LocalSSLTrustManager is the aforementioned dummy trust manager implementation.

Go to Jenkins -> Manage Jenkins -> Configure System -> Global properties Check the box 'Environment variables' and add the JAVA_HOME path = "C:\Program Files\Java\jdk-10.0.1"

*Don't write bin at the end

Apparently, I needed to run OpenSSL as root in order for it to have permission to the seeding file.

This happens when a python extension (written in C) tries to access a memory beyond reach.

You can trace it in following ways.

• Add sys.settrace at the very first line of the code.

• Use gdb as described by Mark in this answer.. At the command prompt

  gdb python
  (gdb) run /path/to/script.py
  ## wait for segfault ##
  (gdb) backtrace
  ## stack trace of the c code
  

Please reference :Spring Data JPA @Query, if you are using Spring Data JPA version 2.0.4 and later. Sample like below:

@Query(value = "SELECT u FROM User u ORDER BY id")
Page<User> findAllUsersWithPagination(Pageable pageable);

Usually one uses text editor to create source files (like JavaScript). I use VisualStudio which have intellisence supprt for JavaScript, but any other editor will do (vim or notepad on Windows are both fine).

To run JavaScript by itself you need something that can do that. I.e. on Windows you can directly run script from console using CScript script.js command. There are other ways to run JavaScript on Windows and other OS.

Browsers (like Chrome) do not run JavaScript by itself, only as part of a page or extensions. It is unclear what one would expect of browser to do with JavaScript by itself.

Based on my testing, the correct flag is "allowMultiQueries=true"

Same as the updating existing collection field, $set will add a new fields if the specified field does not exist.

Check out this example:

> db.foo.find()
> db.foo.insert({"test":"a"})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> item = db.foo.findOne()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> db.foo.update({"_id" :ObjectId("4e93037bbf6f1dd3a0a9541a") },{$set : {"new_field":1}})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "new_field" : 1, "test" : "a" }

EDIT:

In case you want to add a new_field to all your collection, you have to use empty selector, and set multi flag to true (last param) to update all the documents

db.your_collection.update(
  {},
  { $set: {"new_field": 1} },
  false,
  true
)

EDIT:

In the above example last 2 fields false, true specifies the upsert and multi flags.

Upsert: If set to true, creates a new document when no document matches the query criteria.

Multi: If set to true, updates multiple documents that meet the query criteria. If set to false, updates one document.

This is for Mongo versions prior to 2.2. For latest versions the query is changed a bit

db.your_collection.update({},
                          {$set : {"new_field":1}},
                          {upsert:false,
                          multi:true}) 

For any given string s:

int(s, 16)

Since setOnClickListener is defined on View not Button, if you don't need the variable for something else, you could make it a little terser like this:

findViewById(R.id.buttonXName).setOnClickListener(new OnClickListener() {
    public void onClick(View v) {
    //DO SOMETHING! {RUN SOME FUNCTION ... DO CHECKS... ETC}
    } 
});

Guava has a method to do this for you: double[] Doubles.toArray(Collection<Double>)

This isn't necessarily going to be any faster than just looping through the Collection and adding each Double object to the array, but it's a lot less for you to write.

Subversion has native support for moving files.

svn move SOURCE DESTINATION

See the online help (svn help move) for more information.

My best advise when having the error is to use [] braquets to sorround table names, the abbreviation of tables causes sometimes errors, (sometime table abbreviations just work fine...weird)

One of my experience:

I always change the default keyboard shortcut of Chrome through reverse engineering. After modification, I forgot to close Chrome and ran the following:

sudo cp chrome /opt/google/chrome/chrome
cp: cannot create regular file '/opt/google/chrome/chrome': Text file busy

Using strace, you can find the more details:

sudo strace cp ./chrome /opt/google/chrome/chrome 2>&1 |grep 'Text file busy'
open("/opt/google/chrome/chrome", O_WRONLY|O_TRUNC) = -1 ETXTBSY (Text file busy)

In the following way we can check and update the objects

this.setState(prevState => ({
    Chart: this.state.Chart.length !== 0 ? [...prevState.Chart,data[data.length - 1]] : data
}));

Object is a collection of methods and variables.You can't print the variables in object by just cout operation . if you want to show the things inside the object you have to declare either a getter or a display text method in class.

ex

#include <iostream>

using namespace std;

class mystruct

{
private:
    int m_a;
    float m_b;

public:
    mystruct(int x, float y)
    {
            m_a = x;
            m_b = y;
    }
    public:
    void getm_aAndm_b()
    {
        cout<<m_a<<endl;
        cout<<m_b<<endl;
    }



};

int main()
{

    mystruct m = mystruct(5,3.14);

    cout << "my structure " << endl;
    m.getm_aAndm_b();
    return 0;

}

Not that this is just a one way of doing it

Shove it in the ViewBag:

Controller:

ViewBag.ProductId = 1;

View:

@Html.TextBoxFor(c => c.Propertyname, new {@Value = ViewBag.ProductId})

try to use this one.

$(document).ready(function(){
$.ajax({
    url: "yourPageWhereToLoadData.php",
    success: function(data){
        $("#dialog").html(data);
    }   
});

$("#dialog").dialog(
       {
        bgiframe: true,
        autoOpen: false,
        height: 100,
        modal: true
       }
);
});

Here's another approach:

sprintf("%02x", 10).upcase

see the documentation for sprintf here: http://www.ruby-doc.org/core/classes/Kernel.html#method-i-sprintf

Between for and while: while does not need initialization nor update statement, so it may look better, more elegant; for can have statements missing, one two or all, so it is the most flexible and obvious if you need initialization, looping condition and "update" before looping. If you need only loop condition (tested at the beginning of the loop) then while is more elegant.

Between for/while and do-while: in do-while the condition is evaluated at the end of the loop. More confortable if the loop must be executed at least once.

The first thing i noticed is that you have a semi colon just after your closing bracket for your if statement );

You should also try and clean up your if statement by declaring a variable for the answer separately.

function answers() {

var select = document.getElementById("mySelect");
var answer = select.options[select.selectedIndex].value;

    if(answer == "To measure time"){
        alert("Thats correct"); 
    }

}

http://jsfiddle.net/zpdEp/

If you just want a button to open up a new window, then something like this works:

btnOpenNewWindow.setOnAction(new EventHandler<ActionEvent>() {
    public void handle(ActionEvent event) {
        Parent root;
        try {
            root = FXMLLoader.load(getClass().getClassLoader().getResource("path/to/other/view.fxml"), resources);
            Stage stage = new Stage();
            stage.setTitle("My New Stage Title");
            stage.setScene(new Scene(root, 450, 450));
            stage.show();
            // Hide this current window (if this is what you want)
            ((Node)(event.getSource())).getScene().getWindow().hide();
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    }
}

?? Indian rupee sign. HTML: ₹ — ₹ or ₹ — also ₹, corresponding to Unicode U+20B9.

I found the solution at: Passing data to a bootstrap modal

So simply use:

 $(e.relatedTarget).data('book-id'); 

with 'book-id' is a attribute of modal with pre-fix 'data-'

I found if you have issues with including or mixing your page with something like http://www.example.com, you can fix that by putting //www.example.com instead

You can use the Long wrapper instead of long primitive and call

Long.intValue()

Java7 intValue() docs

It rounds/truncate the long value accordingly to fit in an int.

It has 3 solutions that other guys told upper... but when try Application_Start solution, My other jQuery library like Pickup_Date_and_Time doesn't work... so I test second way and it's answered: 1- set the Target FrameWork to Pre 4.5 2- Use " UnobtrusiveValidationMode="None" " in your page header =>

<%@ Page Title="" Language="C#" 
    MasterPageFile="~/Master/MasteOfHotel.Master" 
    UnobtrusiveValidationMode="None" %>

it works for me and doesn't disrupt my other jQuery function.

Here is where the repair button is:

Give this CSS class to the targeted <div>:

.centered {_x000D_
  width: 150px;_x000D_
  height: 150px;_x000D_
  display: flex;_x000D_
  align-items: center;_x000D_
  justify-content: center;_x000D_
  text-align: center;_x000D_
  background: red; /* Not necessary just to see the result clearly */_x000D_
}

<div class="centered">This text is centered horizontally and vertically</div>

Actually I merged all your answers to my own solution how to solve the above problem:

1. I create the pubxml file according my needs
2. Then I copy all the parameters from pubxml file to my own list of parameters "/p:foo=bar" for msbuild.exe
3. I throw away the pubxml file

The result is like that:

msbuild /t:restore /t:build /p:WebPublishMethod=FileSystem /p:publishUrl=C:\builds\MyProject\ /p:DeleteExistingFiles=True /p:LastUsedPlatform="Any CPU" /p:Configuration=Release

In your Log4net config file, use the following parameter with the RollingFileAppender:

<param name="DatePattern" value="dd.MM.yyyy'.log'" />

Public Sub PDFTxtToPdf(ByVal sTxtfile As String, ByVal sPDFSourcefile As String)
        Dim sr As StreamReader = New StreamReader(sTxtfile)
    Dim doc As New Document()
    PdfWriter.GetInstance(doc, New FileStream(sPDFSourcefile, FileMode.Create))
    doc.Open()
    doc.Add(New Paragraph(sr.ReadToEnd()))
    doc.Close()
End Sub

I was asking myself this question too, then I came Express 4.x guide page to see this sample:

var server = app.listen(3000, function() {
   console.log('Listening on port %d', server.address().port);
});

Use System.currentTimeMillis() or System.nanoTime().

There is another error with the forwars=d slash.

if we get this : def get_x(r): return path/'train'/r['fname']
is the same as def get_x(r): return path + 'train' + r['fname']

extract(hour from age(now(),links.created)) gives you a floor-rounded count of the hour difference.

The rule for the caret is:

A caret at the line end, appends the next line, the first character of the appended line will be escaped.

You can use the caret multiple times, but the complete line must not exceed the maximum line length of ~8192 characters (Windows XP, Windows Vista, and Windows 7).

echo Test1
echo one ^
two ^
three ^
four^
*
--- Output ---
Test1
one two three four*

echo Test2
echo one & echo two
--- Output ---
Test2
one
two

echo Test3
echo one & ^
echo two
--- Output ---
Test3
one
two

echo Test4
echo one ^
& echo two
--- Output ---
Test4
one & echo two

To suppress the escaping of the next character you can use a redirection.

The redirection has to be just before the caret. But there exist one curiosity with redirection before the caret.

If you place a token at the caret the token is removed.

echo Test5
echo one <nul ^
& echo two
--- Output ---
Test5
one
two


echo Test6
echo one <nul ThisTokenIsLost^
& echo two
--- Output ---
Test6
one
two

And it is also possible to embed line feeds into the string:

setlocal EnableDelayedExpansion
set text=This creates ^

a line feed
echo Test7: %text%
echo Test8: !text!
--- Output ---
Test7: This creates
Test8: This creates
a line feed

The empty line is important for the success. This works only with delayed expansion, else the rest of the line is ignored after the line feed.

It works, because the caret at the line end ignores the next line feed and escapes the next character, even if the next character is also a line feed (carriage returns are always ignored in this phase).

Adding to @sefarkas' suggestion and using quantile as cut-offs, one could explore the following option:

newdata <- subset(mydata,!(mydata$var > quantile(mydata$var, probs=c(.01, .99))[2] | mydata$var < quantile(mydata$var, probs=c(.01, .99))[1]) ) 

This will remove the points points beyond the 99th quantile. Care should be taken like what aL3Xa was saying about keeping outliers. It should be removed only for getting an alternative conservative view of the data.

display: inline-block is your friend you just need all three parts of the construct - before, the "block", after - to be one, then you can vertically align them all to the middle:

Working Example

(it looks like your picture anyway ;))

CSS:

p, div {
  display: inline-block; 
  vertical-align: middle;
}
p, div {
  display: inline !ie7; /* hack for IE7 and below */
}

table {
  background: #000; 
  color: #fff; 
  font-size: 16px; 
  font-weight: bold; margin: 0 10px;
}

td {
  padding: 5px; 
  text-align: center;
}

HTML:

<p>some text</p> 
<div>
  <table summary="">
  <tr><td>A</td></tr>
  <tr><td>B</td></tr>
  <tr><td>C</td></tr>
  <tr><td>D</td></tr>
  </table>
</div> 
<p>continues afterwards</p>

This kind of logic could be implemented using EXISTS:

CREATE TABLE tab(a INT, b VARCHAR(10));
INSERT INTO tab(a,b) VALUES(1,'a'),(1, NULL),(NULL, 'a'),(2,'b');

Query:

DECLARE @a INT;

--SET @a = 1;    -- specific NOT NULL value
--SET @a = NULL; -- NULL value
--SET @a = -1;   -- all values

SELECT *
FROM tab t
WHERE EXISTS(SELECT t.a INTERSECT SELECT @a UNION SELECT @a WHERE @a = '-1');

db<>fiddle demo

It could be extended to contain multiple params:

SELECT *
FROM tab t
WHERE EXISTS(SELECT t.a INTERSECT SELECT @a UNION SELECT @a WHERE @a = '-1')
  AND EXISTS(SELECT t.b INTERSECT SELECT @b UNION SELECT @a WHERE @b = '-1');

 # gen  the pub and priv keys
 # use "strange" naming convention, because those WILL BE more than 10 ...
 ssh-keygen -t rsa -b 4096 -C "[email protected]" -f ~/.ssh/[email protected]@`hostname -s`

 # set the git alias ONLY this shell session
 alias git='GIT_SSH_COMMAND="ssh -i ~/.ssh/[email protected].`hostname -s`" git'

 # who did what when and why
 git log --pretty --format='%h %ai %<(15)%ae ::: %s'

 # set the git msg
 export git_msg='issue-123 my important commit msg'

 # add all files ( danger !!! ) and commit them with the msg
 git add --all ; git commit -m "$git_msg" --author "Me <[email protected]"

 # finally 
 git push

You could also try this

Private Sub CommandButton1_Click()

Sheets("Sheet1").Range("A3:E3").Copy

Dim lastrow As Long
lastrow = Range("A65536").End(xlUp).Row

Sheets("Summary Info").Activate
Cells(lastrow + 1, 1).PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False

End Sub

Here's an example of reading Network endian data using Numpy fromfile addressing @Nirmal comments above:

dtheader= np.dtype([('Start Name','b', (4,)),
                ('Message Type', np.int32, (1,)),
                ('Instance', np.int32, (1,)),
                ('NumItems', np.int32, (1,)),
                ('Length', np.int32, (1,)),
                ('ComplexArray', np.int32, (1,))])
dtheader=dtheader.newbyteorder('>')

headerinfo = np.fromfile(iqfile, dtype=dtheader, count=1)

print(raw['Start Name'])

I hope this helps. The problem is that fromfile doesn't recognize and EOF and allow gracefully breaking out of the loop for files of arbitrary size.

Try removing the entire settings.LOGGING dictConfig and restart the server. If that works, rewrite the setting according to the v1.9 documentation.

https://docs.djangoproject.com/en/1.9/topics/logging/#examples

In an object oriented language the methods, and their access modifiers, declare the interface for that object. Between the constructor and the accessor and mutator methods it is possible for the developer to control access to the internal state of an object. If the variables are simply declared public then there is no way to regulate that access. And when we are using setters we can restrict the user for the input we need. Mean the feed for that very variable will come through a proper channel and the channel is predefined by us. So it's safer to use setters.

What worked for me :

div#scrollable {
    overflow-y: scroll;
    max-height: 100vh;
}

Based on another Stack Overflow answer, Most lightweight way to create a random string and a random hexadecimal number, a better version than the accepted answer would be:

('%06x' % random.randrange(16**6)).upper()

much faster.

$result = array();
foreach ($array as $key => $value){
  if(!in_array($value, $result))
    $result[$key]=$value;
}

In addition to the answers above you can pass in command line parameters to the mysqld process for logging options instead of manually editing your conf file. For example, to enable general logging and specifiy a file:

mysqld --general-log --general-log-file=/var/log/mysql.general.log

Confirming other answers above, mysqld --help --verbose gives you the values from the conf file (so running with command line options general-log is FALSE); whereas mysql -se "SHOW VARIABLES" | grep -e log_error -e general_log gives:

general_log     ON
general_log_file        /var/log/mysql.general.log

Use slightly more compact syntax for the error log:

mysqld --general-log --general-log-file=/var/log/mysql.general.log --log-error=/var/log/mysql.error.log

If you are using the GET request to actually SEND data...

check: http://techhelplist.com/index.php/tech-tutorials/37-windows-troubles/60-vbscript-sending-get-request

The problem with MSXML2.XMLHTTP is that there are several versions of it, with different names depending on the windows os version and patches.

this explains it: http://support.microsoft.com/kb/269238

i have had more luck using vbscript to call

set ID = CreateObject("InternetExplorer.Application")
IE.visible = 0
IE.navigate "http://example.com/parser.php?key=" & value & "key2=" & value2 
do while IE.Busy.... 

....and more stuff but just to let the request go thru.

I like jQuery SVG library very much. It helps me every time I need to manipulate with SVG. It really facilitate the work with SVG from JavaScript.

Just in keeping the parent value in child attribute

var Foo = function(){
    this.val= 4;
    this.test={};
    this.test.val=6;
    this.test.par=this;
}

var myObj = new Foo();
alert(myObj.val);
alert(myObj.test.val);
alert(myObj.test.par.val);

Recursion gets a bad rep, I'm always surprised by the number of developers that wont even touch recursion because someone told them it was evil incarnate.

I've learned through trial and error that when done properly recursion can be one of the fastest ways to iterate over something, it is not a steadfast rule and each language/ compiler/ engine has it's own quirks so mileage will vary.

In javascript I can reliably speed up almost any iterative process by introducing recursion with the added benefit of reducing side effects and making the code more clear concise and reusable. Also pro tip its possible to get around the stack overflow issue (and no you dont disable the warning).

My personal Pros & Cons:

Pros:

- Reduces side effects.
- Makes code more concise and easier to reason about.
- Reduces system resource usage and performs better than the traditional for loop.

Cons:

- Can lead to stack overflow.
- More complicated to setup than a traditional for loop.

Mileage will vary depending on language/ complier/ engine.

There is an alternative approach, which does not have I18n problems (allowing ',' or '.' but not both): Decimal.TryParse.

Just try converting, ignoring the value.

bool IsDecimalFormat(string input) {
  Decimal dummy;
  return Decimal.TryParse(input, out dummy);
}

This is significantly faster than using a regular expression, see below.

(The overload of Decimal.TryParse can be used for finer control.)

Performance test results: Decimal.TryParse: 0.10277ms, Regex: 0.49143ms

Code (PerformanceHelper.Run is a helper than runs the delegate for passed iteration count and returns the average TimeSpan.):

using System;
using System.Text.RegularExpressions;
using DotNetUtils.Diagnostics;

class Program {
    static private readonly string[] TestData = new string[] {
        "10.0",
        "10,0",
        "0.1",
        ".1",
        "Snafu",
        new string('x', 10000),
        new string('2', 10000),
        new string('0', 10000)
    };

    static void Main(string[] args) {
        Action parser = () => {
            int n = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i) {
                decimal dummy;
                count += Decimal.TryParse(TestData[i], out dummy) ? 1 : 0;
            }
        };
        Regex decimalRegex = new Regex(@"^[0-9]([\.\,][0-9]{1,3})?$");
        Action regex = () => {
            int n = TestData.Length;
            int count = 0;
            for (int i = 0; i < n; ++i) {
                count += decimalRegex.IsMatch(TestData[i]) ? 1 : 0;
            }
        };

        var paserTotal = 0.0;
        var regexTotal = 0.0;
        var runCount = 10;
        for (int run = 1; run <= runCount; ++run) {
            var parserTime = PerformanceHelper.Run(10000, parser);
            var regexTime = PerformanceHelper.Run(10000, regex);

            Console.WriteLine("Run #{2}: Decimal.TryParse: {0}ms, Regex: {1}ms",
                              parserTime.TotalMilliseconds, 
                              regexTime.TotalMilliseconds,
                              run);
            paserTotal += parserTime.TotalMilliseconds;
            regexTotal += regexTime.TotalMilliseconds;
        }

        Console.WriteLine("Overall averages: Decimal.TryParse: {0}ms, Regex: {1}ms",
                          paserTotal/runCount,
                          regexTotal/runCount);
    }
}

try putting a delay on the last color fade.

$("p#44.test").delay(3000).css("background-color","red");

What are valid values for the id attribute in HTML?
ID's cannot start with digits!!!

CHANNEL_ID in NotificationChannel and Notification.Builder must be the same, try this code:

String CHANNEL_ID = "my_channel_01";
NotificationChannel channel = new NotificationChannel(CHANNEL_ID, "Solveta Unread", NotificationManager.IMPORTANCE_DEFAULT);


Notification.Builder notification = new Notification.Builder(getApplicationContext(), CHANNEL_ID);

I know it's not the asnwer to the precise question (Chrome Developer Tools) but I'm using this workaround with success: http://www.telerik.com/fiddler

(pretty sure some of the web devs already know about this tool)

1. Save the file locally
2. Edit as required
3. Profit!

Full docs: http://docs.telerik.com/fiddler/KnowledgeBase/AutoResponder

PS. I would rather have it implemented in Chrome as a flag preserve after reload, cannot do this now, forums and discussion groups blocked on corporate network :)

Add below alias to your ~/.bash_profile, then run, source ~/.bash_profile; now anytime you need to see the updated files in the last commit, run, showfiles from your git repository.

alias showfiles='git show --pretty="format:" --name-only'

You should declare Environment Variable for PHP in path, so you could use like this:

C:\Path\to\somewhere>php cli.php

You can do it like this

If you want to count the number of records in your table, simply run:

    SELECT COUNT(*) FROM your_table;

MySQL’s generic “errno 150” message “means that a foreign key constraint was not correctly formed.” As you probably already know if you are reading this page, the generic “errno: 150” error message is really unhelpful. However:

You can get the actual error message by running SHOW ENGINE INNODB STATUS; and then looking for LATEST FOREIGN KEY ERROR in the output.

For example, this attempt to create a foreign key constraint:

CREATE TABLE t1
(id INTEGER);

CREATE TABLE t2
(t1_id INTEGER,
 CONSTRAINT FOREIGN KEY (t1_id) REFERENCES t1 (id));

fails with the error Can't create table 'test.t2' (errno: 150). That doesn’t tell anyone anything useful other than that it’s a foreign key problem. But run SHOW ENGINE INNODB STATUS; and it will say:

------------------------
LATEST FOREIGN KEY ERROR
------------------------
130811 23:36:38 Error in foreign key constraint of table test/t2:
FOREIGN KEY (t1_id) REFERENCES t1 (id)):
Cannot find an index in the referenced table where the
referenced columns appear as the first columns, or column types
in the table and the referenced table do not match for constraint.

It says that the problem is it can’t find an index. SHOW INDEX FROM t1 shows that there aren’t any indexes at all for table t1. Fix that by, say, defining a primary key on t1, and the foreign key constraint will be created successfully.

Regarding your second question about properties, you can use self.myView only if you declared it as a property in class. Since myView is a local variable, you can not use it that way. For more details on this, I would recommend you to go through the apple documentation on Declared Properties,

the .data() method is from jQuery. If you want to use this method you need to include the jQuery library and access the method like this:

function doStuff(item) {
  var id = $(item).data('id');
}

I also updated your jsFiffle

UPDATE

with pure angularjs and the jqlite you can achieve the goal like this:

function doStuff(item) {
  var id = angular.element(item).data('id');
}

You must not access the element with [] because then you get the pure DOM element without all the jQuery or jqlite extra methods.

This command will apply the patch not resolving it leaving bad files as *.rej:

git apply --reject --whitespace=fix mypath.patch

You just have to resolve them. Once resolved run:

git -am resolved

The way I've done this, which is a bit convoluted, is as follows:

1. Sort rows by the points in descending order
2. Create an additional column (D) starting at D2 with numbers 1,2,3,... total number of positions
3. In the cell for the actual positions (D2) use the formula if(C2=C1), D2, C1). This checks if the points in this row are the same as the points in the previous row. If it is it gives you the position of the previous row, otherwise it uses the value from column D and thus handle people with equal positions.
4. Copy this formula down the entire column
5. Copy the positions column(C), then paste special >> values to overwrite the formula with positions
6. Resort the rows to their original order

That's worked for me! If there's a better way I'd love to know it!

I found this old Thread while google'ing for generate_204 as Android seems to use this to determine if the wlan is open (response 204 is received) closed (no response at all) or blocked (redirect to captive portal is present). In that case a notification is shown that a log-in to WiFi is required...

With the command:

sudo apt-get remove --purge mysql\*

you can delete anything related to packages named mysql. Those commands are only valid on debian / debian-based linux distributions (Ubuntu for example).

You can list all installed mysql packages with the command:

sudo dpkg -l | grep -i mysql

For more cleanup of the package cache, you can use the command:

sudo apt-get clean

Also, remember to use the command:

sudo updatedb

Otherwise the "locate" command will display old data.

To install mysql again, use the following command:

sudo apt-get install libmysqlclient-dev mysql-client

This will install the mysql client, libmysql and its headers files.

To install the mysql server, use the command:

sudo apt-get install mysql-server

There are more suitable functions for this in os package. But if you have to use os.walk, here is what I come up with

def walkdir(dirname):
    for cur, _dirs, files in os.walk(dirname):
        pref = ''
        head, tail = os.path.split(cur)
        while head:
            pref += '---'
            head, _tail = os.path.split(head)
        print(pref+tail)
        for f in files:
            print(pref+'---'+f)

output:

>>> walkdir('.')
.
---file3
---file2
---my.py
---file1
---A
------file2
------file1
---B
------file3
------file2
------file4
------file1
---__pycache__
------my.cpython-33.pyc

No, for multiple reasons.

1. The path module does not have an exists/existsSync method. It is in the fs module. (Perhaps you just made a typo in your question?)

2. The docs explicitly discourage you from using exists.

   fs.exists() is an anachronism and exists only for historical reasons. There should almost never be a reason to use it in your own code.

   In particular, checking if a file exists before opening it is an anti-pattern that leaves you vulnerable to race conditions: another process may remove the file between the calls to fs.exists() and fs.open(). Just open the file and handle the error when it's not there.

   Since we're talking about a directory rather than a file, this advice implies you should just unconditionally call mkdir and ignore EEXIST.

3. In general, You should avoid the *Sync methods. They're blocking, which means absolutely nothing else in your program can happen while you go to the disk. This is a very expensive operation, and the time it takes breaks the core assumption of node's event loop.

   The *Sync methods are usually fine in single-purpose quick scripts (those that do one thing and then exit), but should almost never be used when you're writing a server: your server will be unable to respond to anyone for the entire duration of the I/O requests. If multiple client requests require I/O operations, your server will very quickly grind to a halt.

   ---

   The only time I'd consider using *Sync methods in a server application is in an operation that happens once (and only once), at startup. For example, require actually uses readFileSync to load modules.

   Even then, you still have to be careful because lots of synchronous I/O can unnecessarily slow down your server's startup time.

   ---

   Instead, you should use the asynchronous I/O methods.

So if we put together those pieces of advice, we get something like this:

function ensureExists(path, mask, cb) {
    if (typeof mask == 'function') { // allow the `mask` parameter to be optional
        cb = mask;
        mask = 0777;
    }
    fs.mkdir(path, mask, function(err) {
        if (err) {
            if (err.code == 'EEXIST') cb(null); // ignore the error if the folder already exists
            else cb(err); // something else went wrong
        } else cb(null); // successfully created folder
    });
}

And we can use it like this:

ensureExists(__dirname + '/upload', 0744, function(err) {
    if (err) // handle folder creation error
    else // we're all good
});

Of course, this doesn't account for edge cases like

• What happens if the folder gets deleted while your program is running? (assuming you only check that it exists once during startup)
• What happens if the folder already exists but with the wrong permissions?

You should use window.history and return a false so that the href is not navigated by the browser ( the default behavior ).

<a href="www.mypage.com" onclick="window.history.go(-1); return false;"> Link </a>

If you want something with a dropdown (some list of values) and a user specified value that can be filled into the selected input as well. This custom dropdown in angular also has a filter dropdown list on key value entered. Please check this stackblitzlink -> https://stackblitz.com/edit/angular-l9guzo?embed=1&file=src/app/custom-textarea.component.ts

A possible CSS ONLY solution can be achived with position: sticky;

The browser support is actually really good: https://caniuse.com/#search=position%3A%20sticky

here is an example: https://jsfiddle.net/0vcoa43L/7/

I have seen this error , for me the issue was there was a space in the absolute path of the persistance.xml , removal of the same helped me.

When a function is a part of a class, it's called a method.

C# is an OOP language and doesn't have functions that are declared outside of classes, that's why all functions in C# are actually methods.

Though, beside this formal difference, they are the same...

possibly if you want to just transfer data to be used by JavaScript then you can use Hash Tags like this

http://localhost/project/index.html#exist

so once when you are done retriving the data show the message and change the window.location.hash to a suitable value.. now whenever you ll refresh the page the hashtag wont be present
NOTE: when you will use this instead ot query strings the data being sent cannot be retrived/read by the server

Firstly, see the different between absolute path and relative path here:

An absolute path always contains the root element and the complete directory list required to locate the file.

Alternatively, a relative path needs to be combined with another path in order to access a file.

In constructor File(String pathname), Javadoc's File class said that

A pathname, whether abstract or in string form, may be either absolute or relative.

If you want to get relative path, you must be define the path from the current working directory to file or directory.Try to use system properties to get this.As the pictures that you drew:

String localDir = System.getProperty("user.dir");
File file = new File(localDir + "\\config.properties");

Moreover, you should try to avoid using similar ".", "../", "/", and other similar relative to the file location relative path, because when files are moved, it is harder to handle.

Use NSAppTransportSecurity:

You have to set the NSAllowsArbitraryLoads key to YES under NSAppTransportSecurity dictionary in your info.plist file.

If you want to convert b'\x61' to 97 or '0x61', you can try this:

[python3.5]
>>>from struct import *
>>>temp=unpack('B',b'\x61')[0] ## convert bytes to unsigned int
97
>>>hex(temp) ##convert int to string which is hexadecimal expression
'0x61'

Reference:https://docs.python.org/3.5/library/struct.html

Super Key : Super key is a set of one or more attributes whose values identify tuple in the relation uniquely.

Candidate Key : Candidate key can be defined as a minimal subset of super key. In some cases , candidate key can not alone since there is alone one attribute is the minimal subset. Example,

Employee(id, ssn, name, addrress)

Here Candidate key is (id, ssn) because we can easily identify the tuple using either id or ssn . Althrough, minimal subset of super key is either id or ssn. but both of them can be considered as candidate key.

Primary Key : Primary key is a one of the candidate key.

Example : Student(Id, Name, Dept, Result)

Here

Super Key : {Id, Id+Name, Id+Name+Dept} because super key is set of attributes .

Candidate Key : Id because Id alone is the minimal subset of super key.

Primary Key : Id because Id is one of the candidate key

A simple JSF Url Prettyfier filter based in the steps of BalusC's answer. The filter forwards all the requests starting with the /ui path (supposing you've got all your xhtml files stored there) to the same path, but adding the xhtml suffix.

public class UrlPrettyfierFilter implements Filter {

    private static final String JSF_VIEW_ROOT_PATH = "/ui";

    private static final String JSF_VIEW_SUFFIX = ".xhtml";

    @Override
    public void destroy() {

    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        HttpServletRequest httpServletRequest = ((HttpServletRequest) request);
        String requestURI = httpServletRequest.getRequestURI();
        //Only process the paths starting with /ui, so as other requests get unprocessed. 
        //You can register the filter itself for /ui/* only, too
        if (requestURI.startsWith(JSF_VIEW_ROOT_PATH) 
                && !requestURI.contains(JSF_VIEW_SUFFIX)) {
            request.getRequestDispatcher(requestURI.concat(JSF_VIEW_SUFFIX))
                .forward(request,response);
        } else {
            chain.doFilter(httpServletRequest, response);
        }
    }

    @Override
    public void init(FilterConfig arg0) throws ServletException {

    }

}

I am planning to use !important for a third-party widget meant to be embedded in a large number of websites out of my control.

I reached the conclusion !important is the only solution to protect the widget's stylesheet from the host stylesheet (apart from iframe and inline styles, which are equally bad). For instance, WordPress uses:

#left-area ul {
    list-style-type: disc;
    padding: 0 0 23px 16px;
    line-height: 26px;
}

This rule threathens to override any UL in my widget because id's have strong specificity. In that case, systematic use of !important seems to be one of the few solutions.

It cannot be done. It is impossible.

ES6+:

There is a new feature on ES6+ that you can check it like below:

if (x?.y)

Actually, the interpretor checks the existence of x and then call the y and because of putting inside if parentheses the coercion happens and x?.y converted to boolean.

Try Chrome Cache View from NirSoft (free).

You can also use Rsync and find. For find:

find $FOLDER -type f | cut -d/ -f2- | sort > /tmp/file_list_$FOLDER

But files with the same names and in the same subfolders, but with different content, will not be shown in the lists.

If you are a fan of GUI, you may check Meld that @Alexander mentioned. It works fine in both windows and linux.

Right click your project > Run As > Run Configuration... > Java Application (in left side panel) - double click on it. That will create new configuration. click on search button under Main Class section and select your main class from it.

I found a way to print the background image with CSS. It's a bit dependent on how your background is laid out, but it seems to work for my application.

Essentially, you add the @media print to the end of your stylesheet and change the body background slightly.

Example, if your current CSS looks like this:

body {
background:url(images/mybg.png) no-repeat;
}

At the end of your stylesheet, you add:

@media print {
body {
   content:url(images/mybg.png);
  }
}

This adds the image to the body as a "foreground" image, thus making it printable. You may need to add some additional CSS to make the z-index proper. But again, its up to how your page is laid out.

This worked for me when I couldn't get a header image to show up in print view.

You can use this site to find subdomains Find subdomains

This tool will try a zone transfer and also query search engines for list of subdomains.

Try:

To_Date (SESSION_START_DATE_TIME, 'MM/DD/YYYY hh24:mi') > 
To_Date ('12-Jan-2012 16:00', 'DD-MON-YYYY hh24:mi' )

The command [Environment]::SetEnvironmentVariable("Path", "$env:Path;C:\Python27", "User") is not a Python command. Instead, this is an operating system command to the set the PATH variable.

You are getting this error as you are inside the Python interpreter which was triggered by the command python you have entered in the terminal (Windows PowerShell).

Please note the >>> at the left side of the line. It states that you are on inside Python interpreter.

Please enter quit() to exit the Python interpreter and then type the command. It should work!

Indexes of two types can be added: when you define a primary key, MySQL will take it as index by default.

Explanation

Primary key as index

Consider you have a tbl_student table and you want student_id as primary key:

ALTER TABLE `tbl_student` ADD PRIMARY KEY (`student_id`)

Above statement adds a primary key, which means that indexed values must be unique and cannot be NULL.

Specify index name

ALTER TABLE `tbl_student` ADD INDEX student_index (`student_id`)

Above statement will create an ordinary index with student_index name.

Create unique index

ALTER TABLE `tbl_student` ADD UNIQUE student_unique_index (`student_id`)

Here, student_unique_index is the index name assigned to student_id and creates an index for which values must be unique (here null can be accepted).

Fulltext option

ALTER TABLE `tbl_student` ADD FULLTEXT student_fulltext_index (`student_id`)

Above statement will create the Fulltext index name with student_fulltext_index, for which you need MyISAM Mysql Engine.

How to remove indexes ?

DROP INDEX `student_index` ON `tbl_student`

How to check available indexes?

SHOW INDEX FROM `tbl_student`

1. Right click ? copy ? copy element

Just use git reset without the --hard flag:

git reset HEAD~1

PS: On Unix based systems you can use HEAD^ which is equal to HEAD~1. On Windows HEAD^ will not work because ^ signals a line continuation. So your command prompt will just ask you More?.

As the others have said, it's all good, you can do it just fine. For me personally, I try to keep a form of hierarchical structure with my elements with a div being the outer most parent element. I try to use only table p ul and span inside forms. Just makes it easier for me to keep track of parent/children relationships inside my webpages.

To add to Heath's answer: It looks like Subversion 1.6 disabled storing passwords by default if it can't store them in encrypted form. You can allow storing unencrypted passwords by explicitly setting password-stores = (that is, to the empty value) in ~/.subversion/config.

To check which password store subversion uses, look in ~/.subversion/auth/svn.simple. This contains several files, each a hash table with a simple key/value encoding. The svn:realmstring in each file identifies which realm that file is for. If the file has

K 8
passtype
V 6
simple

then it stores the password in plain text somewhere in that file, in a K 8 password entry. Else, it tries to use one of the configured password-stores.

Your code is fine. There's no problem with returning Strings in this manner.

In Java, a String is a reference to an immutable object. This, coupled with garbage collection, takes care of much of the potential complexity: you can simply pass a String around without worrying that it would disapper on you, or that someone somewhere would modify it.

If you don't mind me making a couple of stylistic suggestions, I'd modify the code like so:

public String time_to_string(long t) // time in milliseconds
{
    if (t < 0)
    {
        return "-";
    }
    else
    {
        int secs = (int)(t/1000);
        int mins = secs/60;
        secs = secs - (mins * 60);
        return String.format("%d:%02d", mins, secs);
    }
}

As you can see, I've pushed the variable declarations as far down as I could (this is the preferred style in C++ and Java). I've also eliminated ans and have replaced the mix of string concatenation and String.format() with a single call to String.format().

You can loop the array with a for loop and the object properties with for-in loops.

for (var i=0; i<result.length; i++)
    for (var name in result[i]) {
        console.log("Item name: "+name);
        console.log("Source: "+result[i][name].sourceUuid);
        console.log("Target: "+result[i][name].targetUuid);
    }

this way is a bit more flexible than using all():

my_list = [[1, 2, 0], [1, 2, 0], [1, 2, 0]]
all_zeros = False if False in [x[2] == 0 for x in my_list] else True
any_zeros = True if True in [x[2] == 0 for x in my_list] else False

or more succinctly:

all_zeros = not False in [x[2] == 0 for x in my_list]
any_zeros = 0 in [x[2] for x in my_list]

I highly doubt it. You might want to use DTS/SSIS to do this as Levi says. One think that you might want to do is start the process without actually importing the data. Just do enough to get the basic table structures together. Then you are going to want to change around the resulting table structure, because whatever structure tat will likely be created will be shaky at best.

You might also have to take this a step further and create a staging area that takes in all the data first n a string (varchar) form. Then you can create a script that does validation and conversion to get it into the "real" database, because the two databases don't always work well together, especially when dealing with dates.

• .NET Core will install and run on macOS - and just about any other desktop OS.
  IDEs are available for the mac, including:

  • Visual Studio for Mac
  • VS Code (free, but not as professional/focused as VS)
  • JetBrains Rider (paid)

• Mono is a good option that I've used in the past. But with Core 3.0 out now, I would go that route.

Just to add some info to the other answers - using & is a good way if you need an isolated scope.

The main downside of marko's solution is that it forces you to create an isolated scope on an element, but you can only have one of those on an element (otherwise you'll run into an angular error: Multiple directives [directive1, directive2] asking for isolated scope)

This means you :

• can't use it on an element hat has an isolated scope itself
• can't use two directives with this solution on the same element

Since the original question uses a directive with restrict:'A' both situations might arise quite often in bigger applications, and using an isolated scope here is not a good practice and also unnecessary. In fact rekna had a good intuition in this case, and almost had it working, the only thing he was doing wrong was calling the $parsed function wrong (see what it returns here: https://docs.angularjs.org/api/ng/service/$parse ).

TL;DR; Fixed question code

<div my-method='theMethodToBeCalled(id)'></div>

and the code

app.directive("myMethod",function($parse) {
  restrict:'A',
  link:function(scope,element,attrs) {
     // here you can parse any attribute (so this could as well be,
     // myDirectiveCallback or multiple ones if you need them )
     var expressionHandler = $parse(attrs.myMethod);
     $(element).on('theEvent',function( e, rowid ) {
        calculatedId = // some function called to determine id based on rowid

        // HERE: call the parsed function correctly (with scope AND params object)
        expressionHandler(scope, {id:calculatedId});
     }
  }
}

app.controller("myController",function($scope) {
   $scope.theMethodToBeCalled = function(id) { alert(id); };
}

Thanks for replies.

I did like this:

puts 'find' if array.include?(value)

Here's some more benchmarks for Docker based memcached server versus host native memcached server using Twemperf benchmark tool https://github.com/twitter/twemperf with 5000 connections and 20k connection rate

Connect time overhead for docker based memcached seems to agree with above whitepaper at roughly twice native speed.

Twemperf Docker Memcached

Connection rate: 9817.9 conn/s
Connection time [ms]: avg 341.1 min 73.7 max 396.2 stddev 52.11
Connect time [ms]: avg 55.0 min 1.1 max 103.1 stddev 28.14
Request rate: 83942.7 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 83942.7 rsp/s (0.0 ms/rsp)
Response size [B]: avg 8.0 min 8.0 max 8.0 stddev 0.00
Response time [ms]: avg 28.6 min 1.2 max 65.0 stddev 0.01
Response time [ms]: p25 24.0 p50 27.0 p75 29.0
Response time [ms]: p95 58.0 p99 62.0 p999 65.0

Twemperf Centmin Mod Memcached

Connection rate: 11419.3 conn/s
Connection time [ms]: avg 200.5 min 0.6 max 263.2 stddev 73.85
Connect time [ms]: avg 26.2 min 0.0 max 53.5 stddev 14.59
Request rate: 114192.6 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 114192.6 rsp/s (0.0 ms/rsp)
Response size [B]: avg 8.0 min 8.0 max 8.0 stddev 0.00
Response time [ms]: avg 17.4 min 0.0 max 28.8 stddev 0.01
Response time [ms]: p25 12.0 p50 20.0 p75 23.0
Response time [ms]: p95 28.0 p99 28.0 p999 29.0

Here's bencmarks using memtier benchmark tool

memtier_benchmark docker Memcached

4         Threads
50        Connections per thread
10000     Requests per thread
Type        Ops/sec     Hits/sec   Misses/sec      Latency       KB/sec
------------------------------------------------------------------------
Sets       16821.99          ---          ---      1.12600      2271.79
Gets      168035.07    159636.00      8399.07      1.12000     23884.00
Totals    184857.06    159636.00      8399.07      1.12100     26155.79

memtier_benchmark Centmin Mod Memcached

4         Threads
50        Connections per thread
10000     Requests per thread
Type        Ops/sec     Hits/sec   Misses/sec      Latency       KB/sec
------------------------------------------------------------------------
Sets       28468.13          ---          ---      0.62300      3844.59
Gets      284368.51    266547.14     17821.36      0.62200     39964.31
Totals    312836.64    266547.14     17821.36      0.62200     43808.90

If you do not want to use Calendar class at all you can use this

String weekday_name = new SimpleDateFormat("EEEE", Locale.ENGLISH).format(System.currentTimeMillis());

i.e., result is,

"Sunday"

You need to use ContextCompat.getColor(), which is part of the Support V4 Library (so it will work for all the previous API).

ContextCompat.getColor(context, R.color.my_color)

As specified in the documentation, "Starting in M, the returned color will be styled for the specified Context's theme". SO no need to worry about it.

You can add the Support V4 library by adding the following to the dependencies array inside your app build.gradle:

compile 'com.android.support:support-v4:23.0.1'

.c1 {
    height: unset;
}

The unset value added in CSS3 also solves this problem and it's even more universal method than auto or initial because it sets to every CSS property its default value and additionally its default behawior relative to its parent.

Note that initial value breaks aforementioned behavior.

From MDN:

Like these two other CSS-wide keywords, it can be applied to any CSS property, including the CSS shorthand all. This keyword resets the property to its inherited value if it inherits from its parent or to its initial value if not.

This should work.

SELECT a.[CUSTOMER ID], a.[NAME], SUM(b.[AMOUNT]) AS [TOTAL AMOUNT]
FROM RES_DATA a INNER JOIN INV_DATA b
ON a.[CUSTOMER ID]=b.[CUSTOMER ID]
GROUP BY a.[CUSTOMER ID], a.[NAME]

I tested it with SQL Fiddle against SQL Server 2008: http://sqlfiddle.com/#!3/1cad5/1

Basically what's happening here is that, because of the join, you are getting the same row on the "left" (i.e. from the RES_DATA table) for every row on the "right" (i.e. the INV_DATA table) that has the same [CUSTOMER ID] value. When you group by just the columns on the left side, and then do a sum of just the [AMOUNT] column from the right side, it keeps the one row intact from the left side, and sums up the matching values from the right side.

I also came across similar issue. Added core-site.xml and hdfs-site.xml as resources of conf (object)

Configuration conf = new Configuration(true);    
conf.addResource(new Path("<path to>/core-site.xml"));
conf.addResource(new Path("<path to>/hdfs-site.xml"));

Also edited version conflicts in pom.xml. (e.g. If configured version of hadoop is 2.8.1, but in pom.xml file, dependancies has version 2.7.1, then change that to 2.8.1) Run Maven install again.

This solved error for me.

did the same here needed to show "success" twice response is data from PHP

 String res=response.toString().trim;

                            Toast.makeText(sign_in.this,res,Toast.LENGTH_SHORT).show();
    if ( res.compareTo("success")==0){
    Toast.makeText(this,res,Toast.LENGTH_SHORT).show();
    }

usually when i work with remote location teams it is important for me that i have prior knowledge what change done by other teams in same file, before i follow git stages untrack-->staged-->commit for that i wrote an bash script which help me to avoid unnecessary resolve merge conflict with remote team or make new local branch and compare and merge on main branch

#set -x 
branchname=`git branch | grep -F '*' |  awk '{print $2}'`
echo $branchname
git fetch origin ${branchname}
for file in `git status | grep "modified" | awk "{print $2}" `
do
echo "PLEASE CHECK OUT GIT DIFF FOR "$file 
git difftool FETCH_HEAD $file ;
done

in above script i fetch remote main branch (not necessary its master branch)to FETCH_HEAD them make a list of my modified file only and compare modified files to git difftool

here many difftool supported by git, i configure 'Meld Diff Viewer' for good GUI comparison .

If you would like to 'add' additional items to a page, you may want to create an array of maps. This is how I created an array of maps and then added results to it:

import { Product } from '../models/product';

products: Array<Product>;          // Initialize the array.

[...]

let i = 0;
this.service.products( i , (result) => {

    if ( i == 0 ) {
        // Create the first element of the array.
        this.products = Array(result);
    } else { 
        // Add to the array of maps.
        this.products.push(result);
    }

});

Where product.ts look like...

export class Product {
    id: number;
    [...]
}

I actually found that calling fullScroll twice does the trick:

myScrollView.fullScroll(View.FOCUS_DOWN);

myScrollView.post(new Runnable() {
    @Override
    public void run() {
        myScrollView.fullScroll(View.FOCUS_DOWN);
    }
});

It may have something to do with the activation of the post() method right after performing the first (unsuccessful) scroll. I think this behavior occurs after any previous method call on myScrollView, so you can try replacing the first fullScroll() method by anything else that may be relevant to you.

One other option is to use a plyr function:

df <- ldply(listOfDataFrames, data.frame)

This is a little slower than the original:

> system.time({ df <- do.call("rbind", listOfDataFrames) })
   user  system elapsed 
   0.25    0.00    0.25 
> system.time({ df2 <- ldply(listOfDataFrames, data.frame) })
   user  system elapsed 
   0.30    0.00    0.29
> identical(df, df2)
[1] TRUE

My guess is that using do.call("rbind", ...) is going to be the fastest approach that you will find unless you can do something like (a) use a matrices instead of a data.frames and (b) preallocate the final matrix and assign to it rather than growing it.

Edit 1:

Based on Hadley's comment, here's the latest version of rbind.fill from CRAN:

> system.time({ df3 <- rbind.fill(listOfDataFrames) })
   user  system elapsed 
   0.24    0.00    0.23 
> identical(df, df3)
[1] TRUE

This is easier than rbind, and marginally faster (these timings hold up over multiple runs). And as far as I understand it, the version of plyr on github is even faster than this.

From my Linux installation I did:

sudo ipython2 kernelspec install-self

And now my python 2 is back on the list.

Reference:

http://ipython.readthedocs.org/en/latest/install/kernel_install.html

UPDATE:

The method above is now deprecated and will be dropped in the future. The new method should be:

sudo ipython2 kernel install

May be following is better to avoid the if statement:

global.logger || (global.logger = require('my_logger'));

Nowadays, it is the most efficient and comfortable to use lubridate and dplyr libraries.

lubridate contains a number of functions that make parsing dates into POSIXct or Date objects easy. Here we use dmy which automatically parses dates in Day, Month, Year formats. Once your data is in a date format, you can sort it with dplyr::arrange (or any other ordering function) as desired:

d$V3 <- lubridate::dmy(d$V3)
dplyr::arrange(d, V3)

Note: starting git1.8.3.2 (July 2013), the following command (mentioned above by Jeremy W Sherman) won't open an editor anymore:

git commit --allow-empty-message -m ''

See commit 25206778aac776fc6cc4887653fdae476c7a9b5a:

If an empty message is specified with the option -m of git commit then the editor is started.
That's unexpected and unnecessary.
Instead of using the length of the message string for checking if the user specified one, directly remember if the option -m was given.

git 2.9 (June 2016) improves the empty message behavior:

See commit 178e814 (06 Apr 2016) by Adam Dinwoodie (me-and).
See commit 27014cb (07 Apr 2016) by Jeff King (peff).
^{(Merged by Junio C Hamano -- gitster -- in commit 0709261, 22 Apr 2016)}

commit: do not ignore an empty message given by -m ''

• "git commit --amend -m '' --allow-empty-message", even though it looks strange, is a valid request to amend the commit to have no message at all.
  Due to the misdetection of the presence of -m on the command line, we ended up keeping the log messsage from the original commit.
• "git commit -m "$msg" -F file" should be rejected whether $msg is an empty string or not, but due to the same bug, was not rejected when $msg is empty.
• "git -c template=file -m "$msg"" should ignore the template even when $msg is empty, but it didn't and instead used the contents from the template file.

Yeah it suck to get stuck in Scale View.

Host+Home will popup the Virtual machine settings. (by default Host is Right Control)

From there you can change the view settings, as the Menu bar is hidden in Scale View.

Had the same issue, especially when you checked the box not to show the 'Switch to Scale view' dialog.

This you can do while the VM is running.

I believe your syntax is using the Win32_Product Class in WMI. One cause is that this class only displays products installed using Windows Installer (See Here). The Uninstall Registry Key is your best bet.

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall

UPDATE FOR COMMENTS:

The Uninstall Registry Key is the standard place to list what is installed and what isn't installed. It is the location that the Add/Remove Programs list will use to populate the list of applications. I'm sure that there are applications that don't list themselves in this location. In that case you'd have to resort to another cruder method such as searching the Program Files directory or looking in the Start Menu Programs List. Both of those ways are definitely not ideal.

In my opinion, looking at the registry key is the best method.

Use this command to kill ng:

pkill -9 ng

Mads Hansen's solution is good but to succeed in reading the external file in .NET 4 took some time to figure out using hints in the comments about resolvers, ProhibitDTD and so on.

This is how it's done:

        XmlReaderSettings settings = new XmlReaderSettings();
        settings.DtdProcessing = DtdProcessing.Parse;
        XmlUrlResolver resolver = new XmlUrlResolver();
        resolver.Credentials = System.Net.CredentialCache.DefaultCredentials;
        settings.XmlResolver = resolver;
        var reader = XmlReader.Create("logfile.xml", settings);
        XmlDocument doc = new XmlDocument();
        doc.Load(reader);
        foreach (XmlElement element in doc.SelectNodes("//event"))
        {
            var ch = element.ChildNodes;
            var count = ch.Count;
        }

logfile.xml:

<?xml version="1.0"?>
<!DOCTYPE logfile [
<!ENTITY events    
 SYSTEM "events.txt">
]>
<logfile>
&events;
</logfile>

events.txt:

<event>
    <item1>item1</item1>
    <item2>item2</item2>
</event>

To stay with a specific major release, activate the AdoptOpenJDK tap with brew tap and then install the desired version with brew cask install:

$ brew tap AdoptOpenJDK/openjdk
$ brew cask install <version>

To install AdoptOpenJDK 14 with HotSpot, run:

$ brew tap AdoptOpenJDK/openjdk
$ brew cask install adoptopenjdk14

While you can't seek an N'th line directly in a non-symmetrical file without reading data in the file (because you need to count how many lines you have progressed into the file) you can count line breaks until you get to the line you want which takes the least amount of memory and probably has the best performance.

This is going to be more memory efficient than reading everything to an array, since it will only read into the file until it hits the end of the file or the line number (whichever comes first). It is far from perfect, but will probably suit your needs:

string line15 = ReadLine(@"C:\File.csv", 15);

public string ReadLine(string FilePath, int LineNumber){
    string result = "";
    try{
    if( File.Exists(FilePath) ){
        using (StreamReader _StreamReader = new StreamReader(FilePath)){
        for (int a = 0; a < LineNumber; a++) {
            result = _StreamReader.ReadLine();
        }
        }
    }
    }catch{}
    return result;
}

1. Click on Window > Show view > Server or right click on the server in "Servers" view, select "Properties".
2. In the "General" panel, click on the "Switch Location" button.
3. The "Location: [workspace metadata]" should replace by something else.
4. Open the Overview screen for the server by double clicking it.
5. In the Server locations tab , select "Use Tomcat location".
6. Save the configurations and restart the Server.

You may want to follow the steps above before starting the server. Because server location section goes grayed-unreachable.

Here is a method for getting a random color:

private static Random sRandom;

public static synchronized int randomColor() {
    if (sRandom == null) {
        sRandom = new Random();
    }
    return 0xff000000 + 256 * 256 * sRandom.nextInt(256) + 256 * sRandom.nextInt(256)
            + sRandom.nextInt(256);
}

Benefits:

• Get the integer representation which can be used with java.awt.Color or android.graphics.Color
• Keep a static reference to Random.

Yes, %d means decimal, but it means decimal number system, not decimal point.

Further, as a complement to the former post, you can also control the number of decimal points to show. Try this,

System.out.printf("%.2f %.1f",d,f); // prints 1.20 1.2

For more please refer to the API docs.

Use $("input").attr("maxlength", 4) if you're using jQuery version < 1.6 and $("input").prop("maxLength", 4) if you are using jQuery version 1.6+.

You forgot to add a position property to the .dummy-wrap class, and the top/left/bottom/right values don't apply to statically positioned elements (the default)

http://jsfiddle.net/dYBD2/2/

The better option is create a new table copy the rows to the destination table, drop the actual table and rename the newly created table . This method is good for small tables,

The height is a 100% unsure, try putting display: block; or display: inline-block;

One option from dplyr 1.0.0 could be:

DF %>%
 rowwise() %>%
 mutate(row_max = names(.)[which.max(c_across(everything()))])

     V1    V2    V3 row_max
  <dbl> <dbl> <dbl> <chr>  
1     2     7     9 V3     
2     8     3     6 V1     
3     1     5     4 V2     

Sample data:

DF <- structure(list(V1 = c(2, 8, 1), V2 = c(7, 3, 5), V3 = c(9, 6, 
4)), class = "data.frame", row.names = c(NA, -3L))

You need to update the package list in your Ubuntu:

$ sudo apt-get update
$ sudo apt-get install <package_name>

Classic ASP Solution

Most modern browsers support passing the Filename as UTF-8 now but as was the case with a File Upload solution I use that was based on FreeASPUpload.Net (site no longer exists, link points to archive.org) it wouldn't work as the parsing of the binary relied on reading single byte ASCII encoded strings, which worked fine when you passed UTF-8 encoded data until you get to characters ASCII doesn't support.

However I was able to find a solution to get the code to read and parse the binary as UTF-8.

Public Function BytesToString(bytes)    'UTF-8..
  Dim bslen
  Dim i, k , N 
  Dim b , count 
  Dim str

  bslen = LenB(bytes)
  str=""

  i = 0
  Do While i < bslen
    b = AscB(MidB(bytes,i+1,1))

    If (b And &HFC) = &HFC Then
      count = 6
      N = b And &H1
    ElseIf (b And &HF8) = &HF8 Then
      count = 5
      N = b And &H3
    ElseIf (b And &HF0) = &HF0 Then
      count = 4
      N = b And &H7
    ElseIf (b And &HE0) = &HE0 Then
      count = 3
      N = b And &HF
    ElseIf (b And &HC0) = &HC0 Then
      count = 2
      N = b And &H1F
    Else
      count = 1
      str = str & Chr(b)
    End If

    If i + count - 1 > bslen Then
      str = str&"?"
      Exit Do
    End If

    If count>1 then
      For k = 1 To count - 1
        b = AscB(MidB(bytes,i+k+1,1))
        N = N * &H40 + (b And &H3F)
      Next
      str = str & ChrW(N)
    End If
    i = i + count
  Loop

  BytesToString = str
End Function

Credit goes to Pure ASP File Upload by implementing the BytesToString() function from include_aspuploader.asp in my own code I was able to get UTF-8 filenames working.

Useful Links

• Multipart/form-data and UTF-8 in a ASP Classic application

• Unicode, UTF, ASCII, ANSI format differences

Here is a good eplanation: ASP.NET MVC – Multiple buttons in the same form

In 2 words:
you may analize value of submitted button in yout action
or
make separate actions with your version of ActionMethodSelectorAttribute (which I personaly prefer and suggest).

To link to a YouTube video so it plays in HD by default, use the following URL:

https://www.youtube.com/v/VIDEOID?version=3&vq=hd1080

Change VIDEOID to the YouTube video ID that you want to link to. When someone follows the link, it will display the highest-resolution available (up to 1080p) in full-screen mode. Unfortunately, vq=hd1080 does not work on the normal YouTube site (with comments and related videos).

In Java this would be System.in.read()

Sometimes that problem occurs if you already have a branch with the base name.

I tried this:

git checkout -b features/aName origin/features/aName

Unfortunately, I already had a branch named features, and I got the exception of the question asker.

Removing the branch features resolved the problem, the above command worked.

The Windows API function GlobalMemoryStatusEx can be called with p/invoke:

  [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
  private class MEMORYSTATUSEX
  {
     public uint dwLength;
     public uint dwMemoryLoad;
     public ulong ullTotalPhys;
     public ulong ullAvailPhys;
     public ulong ullTotalPageFile;
     public ulong ullAvailPageFile;
     public ulong ullTotalVirtual;
     public ulong ullAvailVirtual;
     public ulong ullAvailExtendedVirtual;
     public MEMORYSTATUSEX()
     {
        this.dwLength = (uint)Marshal.SizeOf(typeof(NativeMethods.MEMORYSTATUSEX));
     }
  }


  [return: MarshalAs(UnmanagedType.Bool)]
  [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
  static extern bool GlobalMemoryStatusEx([In, Out] MEMORYSTATUSEX lpBuffer);

Then use like:

ulong installedMemory;
MEMORYSTATUSEX memStatus = new MEMORYSTATUSEX();
if( GlobalMemoryStatusEx( memStatus))
{ 
   installedMemory = memStatus.ullTotalPhys;
}

Or you can use WMI (managed but slower) to query TotalPhysicalMemory in the Win32_ComputerSystem class.

I think schemas are like a lot of new features (whether to SQL Server or any other software tool). You need to carefully evaluate whether the benefit of adding it to your development kit offsets the loss of simplicity in design and implementation.

It looks to me like schemas are roughly equivalent to optional namespaces. If you're in a situation where object names are colliding and the granularity of permissions is not fine enough, here's a tool. (I'd be inclined to say there might be design issues that should be dealt with at a more fundamental level first.)

The problem can be that, if it's there, some developers will start casually using it for short-term benefit; and once it's in there it can become kudzu.

//slightly improved code without using collection framework

package com.test;

public class TestClass {

    private static Link last;
    private static Link first;

    public static void main(String[] args) {

        //Inserting
        for(int i=0;i<5;i++){
            Link.insert(i+5);
        }
        Link.printList();

        //Deleting
        Link.deletefromFirst();
        Link.printList();
    }


    protected  static class Link {
        private int data;
        private Link nextlink;

        public Link(int d1) {
            this.data = d1;
        }

        public static void insert(int d1) {
            Link a = new Link(d1);
            a.nextlink = null;
            if (first != null) {
                last.nextlink = a;
                last = a;
            } else {
                first = a;
                last = a;
            }
            System.out.println("Inserted -:"+d1);
        }

        public static void deletefromFirst() {
            if(null!=first)
            {
                System.out.println("Deleting -:"+first.data);
                first = first.nextlink;
            }
            else{
                System.out.println("No elements in Linked List");
            }
        }

        public static void printList() {
            System.out.println("Elements in the list are");
            System.out.println("-------------------------");
            Link temp = first;
            while (temp != null) {
                System.out.println(temp.data);
                temp = temp.nextlink;
            }
        }
    }
}

It stands indeed for whatever, as in whatever works for you

MVC vs MVVM vs MVP. What a controversial topic that many developers can spend hours and hours debating and arguing about.

For several years +AngularJS was closer to MVC (or rather one of its client-side variants), but over time and thanks to many refactorings and api improvements, it's now closer to MVVM – the $scope object could be considered the ViewModel that is being decorated by a function that we call a Controller.

Being able to categorize a framework and put it into one of the MV* buckets has some advantages. It can help developers get more comfortable with its apis by making it easier to create a mental model that represents the application that is being built with the framework. It can also help to establish terminology that is used by developers.

Having said, I'd rather see developers build kick-ass apps that are well-designed and follow separation of concerns, than see them waste time arguing about MV* nonsense. And for this reason, I hereby declare AngularJS to be MVW framework - Model-View-Whatever. Where Whatever stands for "whatever works for you".

Angular gives you a lot of flexibility to nicely separate presentation logic from business logic and presentation state. Please use it fuel your productivity and application maintainability rather than heated discussions about things that at the end of the day don't matter that much.

If you're not wanting to save changes set savechanges to false

    Sub CloseBook2()
        ActiveWorkbook.Close savechanges:=False
    End Sub

for more examples, http://support.microsoft.com/kb/213428 and i believe in the past I've just used

    ActiveWorkbook.Close False

Quick answer:
A child scope normally prototypically inherits from its parent scope, but not always. One exception to this rule is a directive with scope: { ... } -- this creates an "isolate" scope that does not prototypically inherit. This construct is often used when creating a "reusable component" directive.

As for the nuances, scope inheritance is normally straightfoward... until you need 2-way data binding (i.e., form elements, ng-model) in the child scope. Ng-repeat, ng-switch, and ng-include can trip you up if you try to bind to a primitive (e.g., number, string, boolean) in the parent scope from inside the child scope. It doesn't work the way most people expect it should work. The child scope gets its own property that hides/shadows the parent property of the same name. Your workarounds are

1. define objects in the parent for your model, then reference a property of that object in the child: parentObj.someProp
2. use $parent.parentScopeProperty (not always possible, but easier than 1. where possible)
3. define a function on the parent scope, and call it from the child (not always possible)

New AngularJS developers often do not realize that ng-repeat, ng-switch, ng-view, ng-include and ng-if all create new child scopes, so the problem often shows up when these directives are involved. (See this example for a quick illustration of the problem.)

This issue with primitives can be easily avoided by following the "best practice" of always have a '.' in your ng-models – watch 3 minutes worth. Misko demonstrates the primitive binding issue with ng-switch.

Having a '.' in your models will ensure that prototypal inheritance is in play. So, use

<input type="text" ng-model="someObj.prop1">

<!--rather than
<input type="text" ng-model="prop1">`
-->

JavaScript Prototypal Inheritance

Also placed on the AngularJS wiki: https://github.com/angular/angular.js/wiki/Understanding-Scopes

It is important to first have a solid understanding of prototypal inheritance, especially if you are coming from a server-side background and you are more familiar with class-ical inheritance. So let's review that first.

Suppose parentScope has properties aString, aNumber, anArray, anObject, and aFunction. If childScope prototypically inherits from parentScope, we have:

(Note that to save space, I show the anArray object as a single blue object with its three values, rather than an single blue object with three separate gray literals.)

If we try to access a property defined on the parentScope from the child scope, JavaScript will first look in the child scope, not find the property, then look in the inherited scope, and find the property. (If it didn't find the property in the parentScope, it would continue up the prototype chain... all the way up to the root scope). So, these are all true:

childScope.aString === 'parent string'
childScope.anArray[1] === 20
childScope.anObject.property1 === 'parent prop1'
childScope.aFunction() === 'parent output'

Suppose we then do this:

childScope.aString = 'child string'

The prototype chain is not consulted, and a new aString property is added to the childScope. This new property hides/shadows the parentScope property with the same name. This will become very important when we discuss ng-repeat and ng-include below.

Suppose we then do this:

childScope.anArray[1] = '22'
childScope.anObject.property1 = 'child prop1'

The prototype chain is consulted because the objects (anArray and anObject) are not found in the childScope. The objects are found in the parentScope, and the property values are updated on the original objects. No new properties are added to the childScope; no new objects are created. (Note that in JavaScript arrays and functions are also objects.)

Suppose we then do this:

childScope.anArray = [100, 555]
childScope.anObject = { name: 'Mark', country: 'USA' }

The prototype chain is not consulted, and child scope gets two new object properties that hide/shadow the parentScope object properties with the same names.

Takeaways:

• If we read childScope.propertyX, and childScope has propertyX, then the prototype chain is not consulted.
• If we set childScope.propertyX, the prototype chain is not consulted.

One last scenario:

delete childScope.anArray
childScope.anArray[1] === 22  // true

We deleted the childScope property first, then when we try to access the property again, the prototype chain is consulted.

Angular Scope Inheritance

The contenders:

• The following create new scopes, and inherit prototypically: ng-repeat, ng-include, ng-switch, ng-controller, directive with scope: true, directive with transclude: true.
• The following creates a new scope which does not inherit prototypically: directive with scope: { ... }. This creates an "isolate" scope instead.

Note, by default, directives do not create new scope -- i.e., the default is scope: false.

ng-include

Suppose we have in our controller:

$scope.myPrimitive = 50;
$scope.myObject    = {aNumber: 11};

And in our HTML:

<script type="text/ng-template" id="/tpl1.html">
<input ng-model="myPrimitive">
</script>
<div ng-include src="'/tpl1.html'"></div>

<script type="text/ng-template" id="/tpl2.html">
<input ng-model="myObject.aNumber">
</script>
<div ng-include src="'/tpl2.html'"></div>

Each ng-include generates a new child scope, which prototypically inherits from the parent scope.

Typing (say, "77") into the first input textbox causes the child scope to get a new myPrimitive scope property that hides/shadows the parent scope property of the same name. This is probably not what you want/expect.

Typing (say, "99") into the second input textbox does not result in a new child property. Because tpl2.html binds the model to an object property, prototypal inheritance kicks in when the ngModel looks for object myObject -- it finds it in the parent scope.

We can rewrite the first template to use $parent, if we don't want to change our model from a primitive to an object:

<input ng-model="$parent.myPrimitive">

Typing (say, "22") into this input textbox does not result in a new child property. The model is now bound to a property of the parent scope (because $parent is a child scope property that references the parent scope).

For all scopes (prototypal or not), Angular always tracks a parent-child relationship (i.e., a hierarchy), via scope properties $parent, $$childHead and $$childTail. I normally don't show these scope properties in the diagrams.

For scenarios where form elements are not involved, another solution is to define a function on the parent scope to modify the primitive. Then ensure the child always calls this function, which will be available to the child scope due to prototypal inheritance. E.g.,

// in the parent scope
$scope.setMyPrimitive = function(value) {
     $scope.myPrimitive = value;
}

Here is a sample fiddle that uses this "parent function" approach. (The fiddle was written as part of this answer: https://stackoverflow.com/a/14104318/215945.)

See also https://stackoverflow.com/a/13782671/215945 and https://github.com/angular/angular.js/issues/1267.

ng-switch

ng-switch scope inheritance works just like ng-include. So if you need 2-way data binding to a primitive in the parent scope, use $parent, or change the model to be an object and then bind to a property of that object. This will avoid child scope hiding/shadowing of parent scope properties.

See also AngularJS, bind scope of a switch-case?

ng-repeat

Ng-repeat works a little differently. Suppose we have in our controller:

$scope.myArrayOfPrimitives = [ 11, 22 ];
$scope.myArrayOfObjects    = [{num: 101}, {num: 202}]

And in our HTML:

<ul><li ng-repeat="num in myArrayOfPrimitives">
       <input ng-model="num">
    </li>
<ul>
<ul><li ng-repeat="obj in myArrayOfObjects">
       <input ng-model="obj.num">
    </li>
<ul>

For each item/iteration, ng-repeat creates a new scope, which prototypically inherits from the parent scope, but it also assigns the item's value to a new property on the new child scope. (The name of the new property is the loop variable's name.) Here's what the Angular source code for ng-repeat actually is:

childScope = scope.$new();  // child scope prototypically inherits from parent scope
...
childScope[valueIdent] = value;  // creates a new childScope property

If item is a primitive (as in myArrayOfPrimitives), essentially a copy of the value is assigned to the new child scope property. Changing the child scope property's value (i.e., using ng-model, hence child scope num) does not change the array the parent scope references. So in the first ng-repeat above, each child scope gets a num property that is independent of the myArrayOfPrimitives array:

This ng-repeat will not work (like you want/expect it to). Typing into the textboxes changes the values in the gray boxes, which are only visible in the child scopes. What we want is for the inputs to affect the myArrayOfPrimitives array, not a child scope primitive property. To accomplish this, we need to change the model to be an array of objects.

So, if item is an object, a reference to the original object (not a copy) is assigned to the new child scope property. Changing the child scope property's value (i.e., using ng-model, hence obj.num) does change the object the parent scope references. So in the second ng-repeat above, we have:

(I colored one line gray just so that it is clear where it is going.)

This works as expected. Typing into the textboxes changes the values in the gray boxes, which are visible to both the child and parent scopes.

See also Difficulty with ng-model, ng-repeat, and inputs and https://stackoverflow.com/a/13782671/215945

ng-controller

Nesting controllers using ng-controller results in normal prototypal inheritance, just like ng-include and ng-switch, so the same techniques apply. However, "it is considered bad form for two controllers to share information via $scope inheritance" -- http://onehungrymind.com/angularjs-sticky-notes-pt-1-architecture/ A service should be used to share data between controllers instead.

(If you really want to share data via controllers scope inheritance, there is nothing you need to do. The child scope will have access to all of the parent scope properties. See also Controller load order differs when loading or navigating)

directives

1. default (scope: false) - the directive does not create a new scope, so there is no inheritance here. This is easy, but also dangerous because, e.g., a directive might think it is creating a new property on the scope, when in fact it is clobbering an existing property. This is not a good choice for writing directives that are intended as reusable components.
2. scope: true - the directive creates a new child scope that prototypically inherits from the parent scope. If more than one directive (on the same DOM element) requests a new scope, only one new child scope is created. Since we have "normal" prototypal inheritance, this is like ng-include and ng-switch, so be wary of 2-way data binding to parent scope primitives, and child scope hiding/shadowing of parent scope properties.
3. scope: { ... } - the directive creates a new isolate/isolated scope. It does not prototypically inherit. This is usually your best choice when creating reusable components, since the directive cannot accidentally read or modify the parent scope. However, such directives often need access to a few parent scope properties. The object hash is used to set up two-way binding (using '=') or one-way binding (using '@') between the parent scope and the isolate scope. There is also '&' to bind to parent scope expressions. So, these all create local scope properties that are derived from the parent scope. Note that attributes are used to help set up the binding -- you can't just reference parent scope property names in the object hash, you have to use an attribute. E.g., this won't work if you want to bind to parent property parentProp in the isolated scope: <div my-directive> and scope: { localProp: '@parentProp' }. An attribute must be used to specify each parent property that the directive wants to bind to: <div my-directive the-Parent-Prop=parentProp> and scope: { localProp: '@theParentProp' }.
   Isolate scope's __proto__ references Object. Isolate scope's $parent references the parent scope, so although it is isolated and doesn't inherit prototypically from the parent scope, it is still a child scope.
   For the picture below we have
   <my-directive interpolated="{{parentProp1}}" twowayBinding="parentProp2"> and
   scope: { interpolatedProp: '@interpolated', twowayBindingProp: '=twowayBinding' }
   Also, assume the directive does this in its linking function: scope.someIsolateProp = "I'm isolated"
   
   For more information on isolate scopes see http://onehungrymind.com/angularjs-sticky-notes-pt-2-isolated-scope/
4. transclude: true - the directive creates a new "transcluded" child scope, which prototypically inherits from the parent scope. The transcluded and the isolated scope (if any) are siblings -- the $parent property of each scope references the same parent scope. When a transcluded and an isolate scope both exist, isolate scope property $$nextSibling will reference the transcluded scope. I'm not aware of any nuances with the transcluded scope.
   For the picture below, assume the same directive as above with this addition: transclude: true
   

This fiddle has a showScope() function that can be used to examine an isolate and transcluded scope. See the instructions in the comments in the fiddle.

Summary

There are four types of scopes:

1. normal prototypal scope inheritance -- ng-include, ng-switch, ng-controller, directive with scope: true
2. normal prototypal scope inheritance with a copy/assignment -- ng-repeat. Each iteration of ng-repeat creates a new child scope, and that new child scope always gets a new property.
3. isolate scope -- directive with scope: {...}. This one is not prototypal, but '=', '@', and '&' provide a mechanism to access parent scope properties, via attributes.
4. transcluded scope -- directive with transclude: true. This one is also normal prototypal scope inheritance, but it is also a sibling of any isolate scope.

For all scopes (prototypal or not), Angular always tracks a parent-child relationship (i.e., a hierarchy), via properties $parent and $$childHead and $$childTail.

Diagrams were generated with graphviz "*.dot" files, which are on github. Tim Caswell's "Learning JavaScript with Object Graphs" was the inspiration for using GraphViz for the diagrams.

This alternative approach uses SQL Server's OUTER APPLY clause. This way, it

1. creates the distinct list of games, and
2. fetches and outputs the record with the lowest point number for that game.

The OUTER APPLY clause can be imagined as a LEFT JOIN, but with the advantage that you can use values of the main query as parameters in the subquery (here: game).

SELECT colMinPointID
FROM (
  SELECT game
  FROM table
  GROUP BY game
) As rstOuter
OUTER APPLY (
  SELECT TOP 1 id As colMinPointID
  FROM table As rstInner
  WHERE rstInner.game = rstOuter.game
  ORDER BY points
) AS rstMinPoints

There are two ways to connect remote redis server using redis-cli:

1. Using host & port individually as options in command

redis-cli -h host -p port

If your instance is password protected

redis-cli -h host -p port -a password

e.g. if my-web.cache.amazonaws.com is the host url and 6379 is the port

Then this will be the command:

redis-cli -h my-web.cache.amazonaws.com -p 6379

if 92.101.91.8 is the host IP address and 6379 is the port:

redis-cli -h 92.101.91.8 -p 6379

command if the instance is protected with password pass123:

redis-cli -h my-web.cache.amazonaws.com -p 6379 -a pass123

2. Using single uri option in command

redis-cli -u redis://password@host:port

command in a single uri form with username & password

redis-cli -u redis://username:password@host:port

e.g. for the same above host - port configuration command would be

redis-cli -u redis://[email protected]:6379

command if username is also provided user123

redis-cli -u redis://user123:[email protected]:6379

This detailed answer was for those who wants to check all options. For more information check documentation: Redis command line usage

I got the communications failure error when using a java.sql.PreparedStatement with a specific statement.

This was running against MySQL 5.6, Tomcat 7.0.29 and JDK 1.7.0_67 on a Windows 7 x64 machine.

The cause turned out to be setting an integer to a string parameter and a string to an integer parameter then trying to perform executeQuery on the prepared statement. After I corrected the order of parameter setting the statement performed correctly.

This had nothing to do with network issues as the wording of the error message suggested.

import csv
with open(file_path, 'a') as outcsv:   
    #configure writer to write standard csv file
    writer = csv.writer(outcsv, delimiter=',', quotechar='|', quoting=csv.QUOTE_MINIMAL, lineterminator='\n')
    writer.writerow(['number', 'text', 'number'])
    for item in list:
        #Write item to outcsv
        writer.writerow([item[0], item[1], item[2]])

official docs: http://docs.python.org/2/library/csv.html