SyntaxFix.com - Programming Questions & Answers Hub For Beginners

I know this is very late, but is useful for newbies. We can atuload url helper and it will be available throughout the application. For this in application\config\autoload.php modify as follows -

$autoload['helper'] = array('url'); 

You can use values_list alongside filter like so;

active_emps_first_name = Employees.objects.filter(active=True).values_list('first_name',flat=True)

More details here

Execute the following procedure for example as user system.

Set p_owner to the schema owner and p_readonly to the name of the readonly user.

create or replace
procedure createReadOnlyUser(p_owner in varchar2, p_readonly in varchar2) 
AUTHID CURRENT_USER is
BEGIN
    execute immediate 'create user '||p_readonly||' identified by '||p_readonly;
    execute immediate 'grant create session to '||p_readonly;
    execute immediate 'grant select any dictionary to '||p_readonly;
    execute immediate 'grant create synonym to '||p_readonly;

   FOR R IN (SELECT owner, object_name from all_objects where object_type in('TABLE', 'VIEW') and owner=p_owner) LOOP
      execute immediate 'grant select on '||p_owner||'.'||R.object_name||' to '||p_readonly;
   END LOOP;
   FOR R IN (SELECT owner, object_name from all_objects where object_type in('FUNCTION', 'PROCEDURE') and owner=p_owner) LOOP
      execute immediate 'grant execute on '||p_owner||'.'||R.object_name||' to '||p_readonly;
   END LOOP;
   FOR R IN (SELECT owner, object_name FROM all_objects WHERE object_type in('TABLE', 'VIEW') and owner=p_owner) LOOP
      EXECUTE IMMEDIATE 'create synonym '||p_readonly||'.'||R.object_name||' for '||R.owner||'."'||R.object_name||'"';
   END LOOP;
   FOR R IN (SELECT owner, object_name from all_objects where object_type in('FUNCTION', 'PROCEDURE') and owner=p_owner) LOOP
      execute immediate 'create synonym '||p_readonly||'.'||R.object_name||' for '||R.owner||'."'||R.object_name||'"';
   END LOOP;
END;

More detail, which may perhaps be helpful to someone:

Due to my own explorations, I now know how to set environment variables in 7 of 8 different ways. I was trying to get an envar through to an application I'm developing under Xcode. I set "tracer" envars using these different methods to tell me which ones get it into the scope of my application. From the below, you can see that editing the "scheme" in Xcode to add arguments works, as does "putenv". What didn't set it in that scope: ~/.MACOS/environment.plist, app-specific plist, .profile, and adding a build phase to run a custom script (I found another way in Xcode [at least] to set one but forgot what I called the tracer and can't find it now; maybe it's on another machine....)

GPU_DUMP_DEVICE_KERNEL is 3

GPU_DUMP_TRK_ENVPLIST is (null)

GPU_DUMP_TRK_APPPLIST is (null)

GPU_DUMP_TRK_DOTPROFILE is (null)

GPU_DUMP_TRK_RUNSCRIPT is (null)

GPU_DUMP_TRK_SCHARGS is 1

GPU_DUMP_TRK_PUTENV is 1

... on the other hand, if I go into Terminal and say "set", it seems the only one it gets is the one from .profile (I would have thought it would pick up environment.plist also, and I'm sure once I did see a second tracer envar in Terminal, so something's probably gone wonky since then. Long day....)

the solution from millhouse is not working anymore with recent version of mockito

This solution work with java 8 and mockito 2.2.9

where ArgumentMatcher is an instanceof org.mockito.ArgumentMatcher

public class ClassOrSubclassMatcher<T> implements ArgumentMatcher<Class<T>> {

   private final Class<T> targetClass;

    public ClassOrSubclassMatcher(Class<T> targetClass) {
        this.targetClass = targetClass;
    }

    @Override
    public boolean matches(Class<T> obj) {
        if (obj != null) {
            if (obj instanceof Class) {
                return targetClass.isAssignableFrom( obj);
            }
        }
        return false;
    }
}

And the use

when(a.method(ArgumentMatchers.argThat(new ClassOrSubclassMatcher<>(A.class)))).thenReturn(b);

val array2 = array :+ 4
//Array(1, 2, 3, 4)

Works also "reversed":

val array2 = 4 +: array
Array(4, 1, 2, 3)

There is also an "in-place" version:

var array = Array( 1, 2, 3 )
array +:= 4
//Array(4, 1, 2, 3)
array :+= 0
//Array(4, 1, 2, 3, 0)

I had the same issue and I have tried many answers but nothing worked.

I tried the following and it worked successfully :

<input type=text  data-date-format='yy-mm-dd'  > 

I had the same issue.

Only after I changed in php.ini variable

display_errors = Off

to

display_errors = On

Phpadmin started working.. crazy....

MailAddress fromAddress = new MailAddress  (fromMail,fromName);
MailAddress toAddress = new MailAddress(toMail,toName);
MailMessage message = new MailMessage(fromAddress,toAddress);
message.Subject = subject;
message.Body = body;
SmtpClient smtp = new SmtpClient()
{
    Host = host, Port = port,
    enabHost = "smtp.gmail.com",
    Port = 25,
    EnableSsl = true,
    UseDefaultCredentials = true,
    Credentials = new  NetworkCredentials (fromMail, password)
};
smtp.send(message);

org.json.simple.JSONArray resultantJson = new org.json.simple.JSONArray();

        org.json.JSONArray o1 = new org.json.JSONArray("[{\"one\":[],\"two\":\"abc\"}]");
        org.json.JSONArray o2 = new org.json.JSONArray("[{\"three\":[1,2],\"four\":\"def\"}]");


        resultantJson.addAll(o1.toList());
        resultantJson.addAll(o2.toList());

you need to do an ajax HEAD request to get the filesize. with jquery it's something like this

  var req = $.ajax({
    type: "HEAD",
    url: yoururl,
    success: function () {
      alert("Size is " + request.getResponseHeader("Content-Length"));
    }
  });

You use uninstall the app and change the sharedPreferences name then run this application. I think it will resolve the issue.

A sample code to retrieve values from sharedPreferences you can use the following set of code,

SharedPreferences shared = getSharedPreferences(PREF_NAME, MODE_PRIVATE);
String channel = (shared.getString(keyValue, ""));

On Fedora, this works:

 yum install lapack lapack-devel blas blas-devel
 pip install numpy
 pip install scipy

Remember to install 'lapack-devel' and 'blas-devel' in addition to 'blas' and 'lapack' otherwise you'll get the error you mentioned or the "numpy.distutils.system_info.LapackNotFoundError" error.

For future reference, I had the same problem

"warning: Skipping unreadable file"

under Linux. The reason was that I love using Tab-completing and in gnuplot this added a whitespace at the end that I did not really notice

gnuplot> plot "./datafile.txt "

String myString = getString(R.string.mystring);

easy way

UPDATE

Just realized another way to do this that works much better than the --verbose command line option:

class TestSomething extends PHPUnit_Framework_TestCase {
    function testSomething() {
        $myDebugVar = array(1, 2, 3);
        fwrite(STDERR, print_r($myDebugVar, TRUE));
    }
}

This lets you dump anything to your console at any time without all the unwanted output that comes along with the --verbose CLI option.

As other answers have noted, it's best to test output using the built-in methods like:

$this->expectOutputString('foo');

However, sometimes it's helpful to be naughty and see one-off/temporary debugging output from within your test cases. There is no need for the var_dump hack/workaround, though. This can easily be accomplished by setting the --verbose command line option when running your test suite. For example:

$ phpunit --verbose -c phpunit.xml

This will display output from inside your test methods when running in the CLI environment.

See: Writing Tests for PHPUnit - Testing Output.

Further to PhoneixS answer to get the correct length of string in bytes - Since mb_strlen() is slower than strlen(), for the best performance one can check "mbstring.func_overload" ini setting so that mb_strlen() is used only when it is really required:

$content_length = ini_get('mbstring.func_overload') ? mb_strlen($content , '8bit') : strlen($content);

Here is a one liner. A little improvised answer using format with print() to iterate a list.

How about this (python 3.x):

sample_list = ['cat', 'dog', 'bunny', 'pig']
print("Your list of animals are: {}, {}, {} and {}".format(*sample_list))

Read the docs here on using format().

from your question I assume that you already have your data in hdfs. So you don't need to LOAD DATA, which moves the files to the default hive location /user/hive/warehouse. You can simply define the table using the externalkeyword, which leaves the files in place, but creates the table definition in the hive metastore. See here: Create Table DDL eg.:

create external table table_name (
  id int,
  myfields string
)
location '/my/location/in/hdfs';

Please note that the format you use might differ from the default (as mentioned by JigneshRawal in the comments). You can use your own delimiter, for example when using Sqoop:

row format delimited fields terminated by ','

As for the first part:

>>> N = 5
>>> count_list = [i+1 for i in xrange(N)]
>>> count_list
[1, 2, 3, 4, 5]
>>>

As for the second, read 9.6. random — Generate pseudo-random numbers.

>>> from random import choice
>>> a = choice(count_list)
>>> a
1
>>> count_list.remove(a)
>>> count_list
[2, 3, 4, 5]

That's the general idea.

By the way, you may also be interested in reading Random selection of elements in a list, with no repeats (Python recipe).

There are a few implementations of fast random selection.

.modalBackground
    {

        filter: alpha(opacity=80);
        opacity: 0.8;
        z-index: 10000;
    }

If you don't want use connection pool (you sure, that your app has only one connection), you can do this - if connection falls you must establish new one - call method .openSession() instead .getCurrentSession()

For example:

SessionFactory sf = null;
// get session factory
// ...
//
Session session = null;
try {
        session = sessionFactory.getCurrentSession();
} catch (HibernateException ex) {
        session = sessionFactory.openSession();
}

If you use Mysql, you can set autoReconnect property:

    <property name="hibernate.connection.url">jdbc:mysql://127.0.0.1/database?autoReconnect=true</property>

I hope this helps.

Put this on top of retrieve.php:

header('Access-Control-Allow-Origin: *');

Note that this effectively disables CORS protection, and leaves your users exposed to attack. If you're not completely certain that you need to allow all origins, you should lock this down to a more specific origin:

header('Access-Control-Allow-Origin: https://www.example.com');

Please refer to following stack answer for better understanding of Access-Control-Allow-Origin

https://stackoverflow.com/a/10636765/413670

Your svn merge syntax is wrong.

You want to checkout a working copy of trunk and then use the svn merge --reintegrate option:

$ pwd
/home/user/project-trunk

$ svn update  # (make sure the working copy is up to date)
At revision <N>.

$ svn merge --reintegrate ^/project/branches/branch_1
--- Merging differences between repository URLs into '.':
U    foo.c
U    bar.c
 U   .

$ # build, test, verify, ...

$ svn commit -m "Merge branch_1 back into trunk!"
Sending        .
Sending        foo.c
Sending        bar.c
Transmitting file data ..
Committed revision <N+1>.

See the SVN book chapter on merging for more details.

Note that at the time it was written, this was the right answer (and was accepted), but things have moved on. See the answer of topek, and http://subversion.apache.org/docs/release-notes/1.8.html#auto-reintegrate

For php 5.3+ you can use the SplFileInfo() class

$spl = new SplFileInfo($filename); 
print_r($spl->getExtension()); //gives extension 

Also since you are checking extension for file uploads, I highly recommend using the mime type instead..

For php 5.3+ use the finfo class

$finfo = new finfo(FILEINFO_MIME);
print_r($finfo->buffer(file_get_contents($file name)); 

Just having final will have the intended effect.

final int x = 5;

...
x = 10; // this will cause a compilation error because x is final

Declaring static is making it a class variable, making it accessible using the class name <ClassName>.x

Oracle Java Communications API Reference - http://www.oracle.com/technetwork/java/index-jsp-141752.html

Official 3.0 Download (Solarix, Linux) - http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-misc-419423.html

Unofficial 2.0 Download (All): http://www.java2s.com/Code/Jar/c/Downloadcomm20jar.htm

Unofficial 2.0 Download (Windows installer) - http://kishor15389.blogspot.hk/2011/05/how-to-install-java-communications.html

In order to ensure there is no compilation error, place the file on your classpath when compiling (-cp command-line option, or check your IDE documentation).

For someone who doesn't want to use inline JS.

<select data-select-name>
    <option value="">Select...</option>
    <option value="http://google.com">Google</option>
    <option value="http://yahoo.com">Yahoo</option>
</select>

<script type="text/javascript">
    document.addEventListener('DOMContentLoaded',function() {
        document.querySelector('select[data-select-name]').onchange=changeEventHandler;
    },false);

    function changeEventHandler(event) {
        window.location.href = this.options[this.selectedIndex].value;
    }
</script>

This took a while to get right. I had this issue when cross-compiling in Ubuntu for an ARM target. I solved it with:

PATH=$PATH:/ccpath/bin CC=ccname-gcc AR=ccname-ar LD=ccname-ld CPPFLAGS="-nostdinc -I/ccrootfs/usr/include ..." LDFLAGS=-L/ccrootfs/usr/lib ./autogen.sh --build=`config.guess` --host=armv5tejl-unknown-linux-gnueabihf

Notice CFLAGS is not used with autogen.sh/configure, using it gave me the error: "configure: error: C compiler cannot create executables". In the build environment I was using an autogen.sh script was provided, if you don't have an autogen.sh script substitute ./autogen.sh with ./configure in the command above. I ran config.guess on the target system to get the --host parameter.

After successfully running autogen.sh/configure, compile with:

PATH=$PATH:/ccpath/bin CC=ccname-gcc AR=ccname-ar LD=ccname-ld CPPFLAGS="-nostdinc -I/ccrootfs/usr/include ..." LDFLAGS=-L/ccrootfs/usr/lib CFLAGS="-march=... -mcpu=... etc." make

The CFLAGS I chose to use were: "-march=armv5te -fno-tree-vectorize -mthumb-interwork -mcpu=arm926ej-s". It will take a while to get all of the include directories set up correctly: you might want some includes pointing to your cross-compiler and some pointing to your root file system includes, and there will likely be some conflicts.

I'm sure this is not the perfect answer. And I am still seeing some include directories pointing to / and not /ccrootfs in the Makefiles. Would love to know how to correct this. Hope this helps someone.

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

myListView.smoothScrollToPosition(i);

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

myListView.getItemAtPosition(i);

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

Good Luck :)

To center a <button type = "button"> both vertically and horizontally within a <div> which width is computed dynamically like in your case, this is what to do:

1. Set text-align: center; to the wrapping <div>: this will center the button whenever you resize the <div> (or rather the window)

2. For the vertical alignment, you will need to set margin: valuepx; for the button. This is the rule on how to calculate valuepx:

   valuepx = (wrappingDIVheight - buttonHeight)/2

Here is a JS Bin demo.

Since nobody posted the modern C++ approach yet,

#include <iostream>
#include <random>
int main()
{
    std::random_device rd; // obtain a random number from hardware
    std::mt19937 gen(rd()); // seed the generator
    std::uniform_int_distribution<> distr(25, 63); // define the range

    for(int n=0; n<40; ++n)
        std::cout << distr(gen) << ' '; // generate numbers
}

For me even though python etc will all work though our corporate proxy npm would not.

I tried

npm config set proxy http://proxyccc.xxx.ca:8080 npm config set https-proxy https://proxyccc.xxx.ca:8080 npm config set registry http://registry.npmjs.org/

as instructed but kept getting the same error.

It was only when I removed https-proxy https://proxyccc.xxx.ca:8080 from the .npmrc file that npm install electron --save-dev worked

Here's an example which issues the same warning:

import numpy as np
np.seterr(all='warn')
A = np.array([10])
a=A[-1]
a**a

yields

RuntimeWarning: overflow encountered in long_scalars

In the example above it happens because a is of dtype int32, and the maximim value storable in an int32 is 2**31-1. Since 10**10 > 2**32-1, the exponentiation results in a number that is bigger than that which can be stored in an int32.

Note that you can not rely on np.seterr(all='warn') to catch all overflow errors in numpy. For example, on 32-bit NumPy

>>> np.multiply.reduce(np.arange(21)+1)
-1195114496

while on 64-bit NumPy:

>>> np.multiply.reduce(np.arange(21)+1)
-4249290049419214848

Both fail without any warning, although it is also due to an overflow error. The correct answer is that 21! equals

In [47]: import math

In [48]: math.factorial(21)
Out[50]: 51090942171709440000L

According to numpy developer, Robert Kern,

Unlike true floating point errors (where the hardware FPU sets a flag whenever it does an atomic operation that overflows), we need to implement the integer overflow detection ourselves. We do it on the scalars, but not arrays because it would be too slow to implement for every atomic operation on arrays.

So the burden is on you to choose appropriate dtypes so that no operation overflows.

Many UNIX programs respect the http_proxy environment variable, curl included. The format curl accepts is [protocol://]<host>[:port].

In your shell configuration:

export http_proxy http://proxy.server.com:3128

For proxying HTTPS requests, set https_proxy as well.

Curl also allows you to set this in your .curlrc file (_curlrc on Windows), which you might consider more permanent:

http_proxy=http://proxy.server.com:3128

As I just came across this topic I wanted to share the reason and solution why I got the message "invalid or corrupt jarfile":

I had updated the version of the "maven-jar-plugin" in my pom.xml from 2.1 to 3.1.2. Everything still went fine and a jar file was built. But somehow it obviously wouldn't run anymore.

As soon as i set the "maven-jar-plugin" version back to 2.1 again, the problem was gone.

list1 = (x[0] for x in source_list)
list2 = (x[1] for x in source_list)

You cannot mix JS and PHP that way, PHP is rendered before the page is sent to the browser (i.e. before the JS is run)

You can use window.location to change your current page.

$('.entry a:first').click(function() {
    window.location = "http://google.ca";
});

$myarray = array_values($myarray);

array_values

Looks like older answers were fine for older Jackson versions, but since objectMapper has method setTimeZone(tz), setting time zone on a dateFormat is totally ignored.

How to properly setup timeZone to the ObjectMapper in Jackson version 2.11.0:

ObjectMapper objectMapper = new ObjectMapper();
objectMapper.setTimeZone(TimeZone.getTimeZone("Europe/Warsaw"));

Full example

  @Test
  void test() throws Exception {
    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.findAndRegisterModules();
    objectMapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
    JavaTimeModule module = new JavaTimeModule();
    objectMapper.registerModule(module);
    objectMapper.setTimeZone(TimeZone.getTimeZone("Europe/Warsaw"));

    ZonedDateTime now = ZonedDateTime.now();
    String converted = objectMapper.writeValueAsString(now);

    ZonedDateTime restored = objectMapper.readValue(converted, ZonedDateTime.class);
    System.out.println("serialized: " + now);
    System.out.println("converted: " + converted);
    System.out.println("restored: " + restored);

    Assertions.assertThat(now).isEqualTo(restored);
  }
`

if you need a simple solution for this see:

new Date('1993-01-20'.split('-')); 

This worked for me allowing me to co-locate javascript and html for partial view in same file. Helps with thought process to see html and related part in same partial view file.

In View which uses Partial View called "_MyPartialView.cshtml"

<div>
    @Html.Partial("_MyPartialView",< model for partial view>,
            new ViewDataDictionary { { "Region", "HTMLSection" } } })
</div>

@section scripts{

    @Html.Partial("_MyPartialView",<model for partial view>, 
                  new ViewDataDictionary { { "Region", "ScriptSection" } })

 }

In Partial View file

@model SomeType

@{
    var region = ViewData["Region"] as string;
}

@if (region == "HTMLSection")
{


}

@if (region == "ScriptSection")
{
        <script type="text/javascript">
    </script">
}

Another variation you could also use

MyType[] Temp = new MyType[myDico.Count];
myDico.Values.CopyTo(Temp, 0);
List<MyType> items = Temp.ToList();

agf's bytearray solution is workable, but if you find yourself needing to build up more complicated packets using datatypes other than bytes, you can try struct.pack(). http://docs.python.org/release/3.1.3/library/struct.html

I would like to improve Evan Knowles answer: https://stackoverflow.com/a/30796829/2628125

In my case I had class with handlers for UI Component part. Initialization:

this.dataText.textProperty().addListener((observable, oldValue, newValue) -> this.numericSanitization(observable, oldValue, newValue));

And the numbericSanitization method:

private synchronized void numericSanitization(ObservableValue<? extends String> observable, String oldValue, String newValue) {
    final String allowedPattern = "\\d*";

    if (!newValue.matches(allowedPattern)) {
        this.dataText.setText(oldValue);
    }
}

Keyword synchronized is added to prevent possible render lock issue in javafx if setText will be called before old one is finished execution. It is easy to reproduce if you will start typing wrong chars really fast.

Another advantage is that you keep only one pattern to match and just do rollback. It is better because you can easily abstragate solution for different sanitization patterns.

You can use Git GUI on Windows, see instructions:

1. Open the Git Gui (After installing the Git on your computer).

2. Clone your repository to your local hard drive:

3. After cloning, GUI opens, choose: "Rescan" for changes that you made:

4. You will notice the scanned files:

5. Click on "Stage Changed":

6. Approve and click "Commit":

7. Click on "Push":

8. Click on "Push":

9. Wait for the files to upload to git:

with jQuery its even easier and works on Chrome as well

$('#your-button').on('click', function(){
       $('<a href="https://www.some-page.com" target="blank"></a>')[0].click();    
})

Not entirely sure what you are after but in PL/SQL you would simply

DECLARE
  v_variable INTEGER;
BEGIN
  SELECT mycolumn
    INTO v_variable
    FROM myTable;
END;

Ollie.

An object can't be null - the value of an expression can be null. It's worth making the difference clear in your mind. The value of s isn't an object - it's a reference, which is either null or refers to an object.

And yes, you should just use

if (s == null)

Note that this will still use the overloaded == operator defined in string, but that will do the right thing.

Using Java’s Float class.

float f = Float.parseFloat("25");
String s = Float.toString(25.0f);

To compare it's always better to convert the string to float and compare as two floats. This is because for one float number there are multiple string representations, which are different when compared as strings (e.g. "25" != "25.0" != "25.00" etc.)

Yes there is a problem with Click event handler (klik) - First argument must be an object type and second must be EventArgs.

public void klik(object sender, EventArgs e) {
  //
}

If you want to paint on a form or control then use CreateGraphics method.

public void klik(object sender, EventArgs e) {
    Bitmap c = this.DrawMandel();
    Graphics gr = CreateGraphics();  // Graphics gr=(sender as Button).CreateGraphics();
    gr.DrawImage(b, 150, 200);
}

This will replace all the characters except alphanumeric

replaceAll("[^A-Za-z0-9]","");

Try this

git config user.name

git config command stores and gives all the information.

git config -l

This commands gives you all the required info that you want.

You can change the information using

git config --global user.name "<Your-name>"

Similarly you can change many info shown to you using -l option.

1,1: select 1 from dual union all select 1 from dual 1: select 1 from dual union select 1 from dual

$(document).ready(function() {
    $('#abc_frame').attr('src',url);
})

MY PREFERRED METHOD is using fopen,fwrite and fclose [it will cost less CPU]

$f=fopen('myfile.txt','w');
fwrite($f,'new content');
fclose($f);

Warning for those using file_put_contents

It'll affect a lot in performance, for example [on the same class/situation] file_get_contents too: if you have a BIG FILE, it'll read the whole content in one shot and that operation could take a long waiting time

document.cookie = "cookiename=Some Name; path=/";

This will do

Generally if the installation went smoothly, it will create the desktop icons/folders. Maybe check the installation summary log to see if there's any underlying errors.

It should be located C:\Program Files\Microsoft SQL Server\100\Setup Bootstrap\Log(date stamp)\

You can pass in a pointer to a time_t object that time will fill up with the current time (and the return value is the same one that you pointed to). If you pass in NULL, it just ignores it and merely returns a new time_t object that represents the current time.

Inspired by the equation style provided in this answer, a more generic approach (more than one predictor + latex output as option) can be:

print_equation= function(model, latex= FALSE, ...){
    dots <- list(...)
    cc= model$coefficients
    var_sign= as.character(sign(cc[-1]))%>%gsub("1","",.)%>%gsub("-"," - ",.)
    var_sign[var_sign==""]= ' + '

    f_args_abs= f_args= dots
    f_args$x= cc
    f_args_abs$x= abs(cc)
    cc_= do.call(format, args= f_args)
    cc_abs= do.call(format, args= f_args_abs)
    pred_vars=
        cc_abs%>%
        paste(., x_vars, sep= star)%>%
        paste(var_sign,.)%>%paste(., collapse= "")

    if(latex){
        star= " \\cdot "
        y_var= strsplit(as.character(model$call$formula), "~")[[2]]%>%
            paste0("\\hat{",.,"_{i}}")
        x_vars= names(cc_)[-1]%>%paste0(.,"_{i}")
    }else{
        star= " * "
        y_var= strsplit(as.character(model$call$formula), "~")[[2]]        
        x_vars= names(cc_)[-1]
    }

    equ= paste(y_var,"=",cc_[1],pred_vars)
    if(latex){
        equ= paste0(equ," + \\hat{\\varepsilon_{i}} \\quad where \\quad \\varepsilon \\sim \\mathcal{N}(0,",
                    summary(MetamodelKdifEryth)$sigma,")")%>%paste0("$",.,"$")
    }
    cat(equ)
}

The model argument expects an lm object, the latex argument is a boolean to ask for a simple character or a latex-formated equation, and the ... argument pass its values to the format function.

I also added an option to output it as latex so you can use this function in a rmarkdown like this:

```{r echo=FALSE, results='asis'}
print_equation(model = lm_mod, latex = TRUE)
```

Now using it:

df <- data.frame(x = c(1:100))
df$y <- 2 + 3 * df$x + rnorm(100, sd = 40)
df$z <- 8 + 3 * df$x + rnorm(100, sd = 40)
lm_mod= lm(y~x+z, data = df)

print_equation(model = lm_mod, latex = FALSE)

This code yields: y = 11.3382963933174 + 2.5893419 * x + 0.1002227 * z

And if we ask for a latex equation, rounding the parameters to 3 digits:

print_equation(model = lm_mod, latex = TRUE, digits= 3)

This yields:

The flowchart below can be of help when choosing one of the various semantic HTML5 elements:

There is another way to measure the text bounds precisely, first you should get the path for the current Paint and text. In your case it should be like this:

p.getTextPath(someText, 0, someText.length(), 0.0f, 0.0f, mPath);

After that you can call:

mPath.computeBounds(mBoundsPath, true);

In my code it always returns correct and expected values. But, not sure if it works faster than your approach.

If you made a merge on Github and are seeing the error below. You need to pull (fetch and commit) the changes from the remote server before it will recognize the merge on your local. After doing this, Git will allow you to delete the branch without giving you the error.

error: The branch 'x' is not fully merged. If you are sure you want to delete it, run 'git branch -D 'x'.

The fastest way yuo get over it is to replace origin with the suggestion it gives.

Instead of git push origin master, use:

git push [email protected]:my_user_name/my_repo.git master

For input field

<input id="PrimaryPhNumber" type="text" name="mobile"  required
                                       pattern="^[789]\d{9}$" minlenght="10" maxLength="10" placeholder="Eg: 9444400000"
                                       class="inputBoxCss"/>

$('#PrimaryPhNumber').keyup(function (e) {
        console.log(e)
        let field=$(this)
        if(Number(field.val()).toString()=="NaN"){
            field.val('');
            field.focus();
            field[0].setCustomValidity('Please enter a valid phone number');
            field[0].reportValidity()
            $(":focus").css("border", "2px solid red");
        }
    })

None of the answers above talk about disabling ClickOnce. In my situation, I never used ClickOnce for my applications but after I upgraded to VS 2015 it was suddenly enabled and I got the 'SignTool.exe not found' error when I tried to compile.

To disable you go into the properties of your Project (right click) and choose Security | Uncheck Enable ClickOnce security settings.

You can leave the manifest checked in the Signing tab because it has nothing to sign if it's been disabled.

I've confirmed that unchecking the security resolved the compile error on my projects.

If you want to restrict it to one line, use white-space: nowrap; on the div.

Note: According to JDN96, the answer below may cause a memory leak by repeatedly destroying and recreating frames. However, I have not tested to verify this myself.

One way to switch frames in tkinter is to destroy the old frame then replace it with your new frame.

I have modified Bryan Oakley's answer to destroy the old frame before replacing it. As an added bonus, this eliminates the need for a container object and allows you to use any generic Frame class.

# Multi-frame tkinter application v2.3
import tkinter as tk

class SampleApp(tk.Tk):
    def __init__(self):
        tk.Tk.__init__(self)
        self._frame = None
        self.switch_frame(StartPage)

    def switch_frame(self, frame_class):
        """Destroys current frame and replaces it with a new one."""
        new_frame = frame_class(self)
        if self._frame is not None:
            self._frame.destroy()
        self._frame = new_frame
        self._frame.pack()

class StartPage(tk.Frame):
    def __init__(self, master):
        tk.Frame.__init__(self, master)
        tk.Label(self, text="This is the start page").pack(side="top", fill="x", pady=10)
        tk.Button(self, text="Open page one",
                  command=lambda: master.switch_frame(PageOne)).pack()
        tk.Button(self, text="Open page two",
                  command=lambda: master.switch_frame(PageTwo)).pack()

class PageOne(tk.Frame):
    def __init__(self, master):
        tk.Frame.__init__(self, master)
        tk.Label(self, text="This is page one").pack(side="top", fill="x", pady=10)
        tk.Button(self, text="Return to start page",
                  command=lambda: master.switch_frame(StartPage)).pack()

class PageTwo(tk.Frame):
    def __init__(self, master):
        tk.Frame.__init__(self, master)
        tk.Label(self, text="This is page two").pack(side="top", fill="x", pady=10)
        tk.Button(self, text="Return to start page",
                  command=lambda: master.switch_frame(StartPage)).pack()

if __name__ == "__main__":
    app = SampleApp()
    app.mainloop()

Explanation

switch_frame() works by accepting any Class object that implements Frame. The function then creates a new frame to replace the old one.

• Deletes old _frame if it exists, then replaces it with the new frame.
• Other frames added with .pack(), such as menubars, will be unaffected.
• Can be used with any class that implements tkinter.Frame.
• Window automatically resizes to fit new content

Version History

v2.3

- Pack buttons and labels as they are initialized

v2.2

- Initialize `_frame` as `None`.
- Check if `_frame` is `None` before calling `.destroy()`.

v2.1.1

- Remove type-hinting for backwards compatibility with Python 3.4.

v2.1

- Add type-hinting for `frame_class`.

v2.0

- Remove extraneous `container` frame.
    - Application now works with any generic `tkinter.frame` instance.
- Remove `controller` argument from frame classes.
    - Frame switching is now done with `master.switch_frame()`.

v1.6

- Check if frame attribute exists before destroying it.
- Use `switch_frame()` to set first frame.

v1.5

  - Revert 'Initialize new `_frame` after old `_frame` is destroyed'.
      - Initializing the frame before calling `.destroy()` results
        in a smoother visual transition.

v1.4

- Pack frames in `switch_frame()`.
- Initialize new `_frame` after old `_frame` is destroyed.
    - Remove `new_frame` variable.

v1.3

- Rename `parent` to `master` for consistency with base `Frame` class.

v1.2

- Remove `main()` function.

v1.1

- Rename `frame` to `_frame`.
    - Naming implies variable should be private.
- Create new frame before destroying old frame.

v1.0

- Initial version.

One better way would be to use SELECT COUNT statement of SQL.

Just when you need the count of number of rows returned, execute another query returning the exact number of result of that query.

 try
{
   Conn=ConnectionODBC.getConnection();
   Statement stmt = Conn.createStatement();        
    String sqlStmt = sql;        
    String sqlrow = SELECT COUNT(*) from (sql) rowquery;
    String total = stmt.executeQuery(sqlrow);
    int rowcount = total.getInt(1);
    }

I know this is ancient but what about...

4x4 example (actually 4x<anything>):

var matrix = [ [],[],[],[] ]

which can filled by:

for (var i=0; i<4; i++) {
   for (var j=0; j<4; j++) {
      matrix[i][j] = i*j;
   }
}

You can set the width in pixels via inline styling:

<input type="text" name="text" style="width: 195px;">

You can also set the width with a visible character length:

<input type="text" name="text" size="35">

Facebook does not allow to share plain text data with Intent.EXTRA_TEXT but You can share text+link with facebook messanger using this, this works fine for me

            Intent sendIntent = new Intent();
            sendIntent.setAction(Intent.ACTION_SEND);
            sendIntent.putExtra(Intent.EXTRA_TEXT, text+url link);
            sendIntent.setType("text/plain");
            sendIntent.setPackage("com.facebook.orca");
            startActivity(sendIntent);

I got this working : -

$.get('api.php', 'client=mikescafe', function(data) {
...
});

It sends via get the string ?client=mikescafe then collect this variable in api.php, and use it in your mysql statement.

Richard Schneider is right. use code below to fetch data from site which is not utf8 charset will get wrong string.

using (Stream stream = response.GetResponseStream())
{
   StreamReader reader = new StreamReader(stream, Encoding.UTF8);
   String responseString = reader.ReadToEnd();
}

" i can't vote.so wrote this.

Facebook uses Bit.ly's services to shorten links from their site. While pages that have a username turns into "fb.me/<username>", other links associated with Facebook turns into "on.fb.me/*****". To you use the on.fb.me service, just use your Bit.ly account. Note that if you change the default link shortener on your Bit.ly account to j.mp from bit.ly this service won't work.

The answer is "Yes, But..."

But cPython cannot when you are using regular threads for concurrency.

You can either use something like multiprocessing, celery or mpi4py to split the parallel work into another process;

Or you can use something like Jython or IronPython to use an alternative interpreter that doesn't have a GIL.

A softer solution is to use libraries that don't run afoul of the GIL for heavy CPU tasks, for instance numpy can do the heavy lifting while not retaining the GIL, so other python threads can proceed. You can also use the ctypes library in this way.

If you are not doing CPU bound work, you can ignore the GIL issue entirely (kind of) since python won't aquire the GIL while it's waiting for IO.

IMHO Mark Elliot's solution's best one for this problem. If you need to make more complex comparison operations between array elements AND you're on PHP 5.3, you might also think about something like the following:

<?php

// First Array To Compare
$a1 = array('foo','bar','c');

// Target Array
$b1 = array('foo','bar');


// Evaluation Function - we pass guard and target array
$b=true;
$test = function($x) use (&$b, $b1) {
        if (!in_array($x,$b1)) {
                $b=false;
        }
};


// Actual Test on array (can be repeated with others, but guard 
// needs to be initialized again, due to by reference assignment above)
array_walk($a1, $test);
var_dump($b);

This relies on a closure; comparison function can become much more powerful. Good luck!

public void myfunction(){
        try
        {
            sqlcon.Open();
            SqlCommand cmd = new SqlCommand("sp_laba", sqlcon);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.ExecuteNonQuery();
        }
        catch(Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
        finally
        {
            sqlcon.Close();
        }
}

Following worked for me:
<context:property-placeholder location="file:src/resources/spring/AppController.properties"/>

Somehow "classpath:xxx" is not picking the file.

Your column is nullable

int maxAge = context.Persons.Select(p => p.Age).Max() ?? 0;

Your column is non-nullable

int maxAge = context.Persons.Select(p => p.Age).Cast<int?>().Max() ?? 0;

In both cases, you can use the second code. If you use DefaultIfEmpty, you will do a bigger query on your server. For people who are interested, here are the EF6 equivalent:

Query without DefaultIfEmpty

SELECT 
    [GroupBy1].[A1] AS [C1]
    FROM ( SELECT 
        MAX([Extent1].[Age]) AS [A1]
        FROM [dbo].[Persons] AS [Extent1]
    )  AS [GroupBy1]

Query with DefaultIfEmpty

SELECT 
    [GroupBy1].[A1] AS [C1]
    FROM ( SELECT 
        MAX([Join1].[A1]) AS [A1]
        FROM ( SELECT 
            CASE WHEN ([Project1].[C1] IS NULL) THEN 0 ELSE [Project1].[Age] END AS [A1]
            FROM   ( SELECT 1 AS X ) AS [SingleRowTable1]
            LEFT OUTER JOIN  (SELECT 
                [Extent1].[Age] AS [Age], 
                cast(1 as tinyint) AS [C1]
                FROM [dbo].[Persons] AS [Extent1]) AS [Project1] ON 1 = 1
        )  AS [Join1]
    )  AS [GroupBy1]

Print only current month week:

function my_week_range($date) {
    $ts = strtotime($date);
    $start = (date('w', $ts) == 0) ? $ts : strtotime('last sunday', $ts);
    echo $currentWeek = ceil((date("d",strtotime($date)) - date("w",strtotime($date)) - 1) / 7) + 1;
    $start_date = date('Y-m-d', $start);$end_date=date('Y-m-d', strtotime('next saturday', $start));
    if($currentWeek==1)
        {$start_date = date('Y-m-01', strtotime($date));}
    else if($currentWeek==5)
       {$end_date = date('Y-m-t', strtotime($date));}
    else
       {}
    return array($start_date, $end_date );
}

$date_range=list($start_date, $end_date) = my_week_range($new_fdate);

Keep the labels from your original file like this:

df = read.table('data.txt', header = T)

If you have columns named x and y, you can address them like this:

df$x
df$y

If you'd like to actually delete the first row from a data.frame, you can use negative indices like this:

df = df[-1,]

If you'd like to delete a column from a data.frame, you can assign NULL to it:

df$x = NULL

Here are some simple examples of how to create and manipulate a data.frame in R:

# create a data.frame with 10 rows
> x = rnorm(10)
> y = runif(10)
> df = data.frame( x, y )

# write it to a file
> write.table( df, 'test.txt', row.names = F, quote = F )

# read a data.frame from a file: 
> read.table( df, 'test.txt', header = T )

> df$x
 [1] -0.95343778 -0.63098637 -1.30646529  1.38906143  0.51703237 -0.02246754
 [7]  0.20583548  0.21530721  0.69087460  2.30610998
> df$y
 [1] 0.66658148 0.15355851 0.60098886 0.14284576 0.20408723 0.58271061
 [7] 0.05170994 0.83627336 0.76713317 0.95052671

> df$x = x
> df
            y           x
1  0.66658148 -0.95343778
2  0.15355851 -0.63098637
3  0.60098886 -1.30646529
4  0.14284576  1.38906143
5  0.20408723  0.51703237
6  0.58271061 -0.02246754
7  0.05170994  0.20583548
8  0.83627336  0.21530721
9  0.76713317  0.69087460
10 0.95052671  2.30610998

> df[-1,]
            y           x
2  0.15355851 -0.63098637
3  0.60098886 -1.30646529
4  0.14284576  1.38906143
5  0.20408723  0.51703237
6  0.58271061 -0.02246754
7  0.05170994  0.20583548
8  0.83627336  0.21530721
9  0.76713317  0.69087460
10 0.95052671  2.30610998

> df$x = NULL
> df 
            y
1  0.66658148
2  0.15355851
3  0.60098886
4  0.14284576
5  0.20408723
6  0.58271061
7  0.05170994
8  0.83627336
9  0.76713317
10 0.95052671

Using a double-tilde (double bitwise NOT) - ~~ - does some interesting things in JavaScript. For instance you can use it instead of Math.floor or even as an alternative to parseInt("123", 10)! It's been discussed a lot over the web, so I won't go in why it works here, but if you're interested: What is the "double tilde" (~~) operator in JavaScript?

We can exploit this property of a double-tilde to convert NaN to a number, and happily that number is zero!

console.log(~~NaN); // 0

<input type="text" autocomplete="off" />

Well, when writing it out to file, you do know what class T is, so you can store that in dump. Then, when reading it back in, you can dynamically call it using reflection.

public JSONObject dump() throws JSONException {
    JSONObject result = new JSONObject();
    JSONArray a = new JSONArray();
    for(T i : items){
        a.put(i.dump());
        // inside this i.dump(), store "class-name"
    }
    result.put("items", a);
    return result;
}

public void load(JSONObject obj) throws JSONException {
    JSONArray arrayItems = obj.getJSONArray("items");
    for (int i = 0; i < arrayItems.length(); i++) {
        JSONObject item = arrayItems.getJSONObject(i);
        String className = item.getString("class-name");
        try {
            Class<?> clazzy = Class.forName(className);
            T newItem = (T) clazzy.newInstance();
            newItem.load(obj);
            items.add(newItem);
        } catch (InstantiationException e) {
            // whatever
        } catch (IllegalAccessException e) {
            // whatever
        } catch (ClassNotFoundException e) {
            // whatever
        }
    }

Using a commit's SHA1 key, you could do the following:

• First, find the commit you want for a specific file:

  git log -n <# commits> <file-name>

  This, based on your <# commits>, will generate a list of commits for a specific file.

  TIP: if you aren't sure what commit you are looking for, a good way to find out is using the following command: git diff <commit-SHA1>..HEAD <file-name>. This command will show the difference between the current version of a commit, and a previous version of a commit for a specific file.

  NOTE: a commit's SHA1 key is formatted in the git log -n's list as:

commit <SHA1 id>

• Second, checkout the desired version:

  If you have found the desired commit/version you want, simply use the command: git checkout <desired-SHA1> <file-name>

  This will place the version of the file you specified in the staging area. To take it out of the staging area simply use the command: reset HEAD <file-name>

To revert back to where the remote repository is pointed to, simply use the command: git checkout HEAD <file-name>

If you're using SASS you could also use this mixin:

@mixin headings {
    h1, h2, h3,
    h4, h5, h6 {
        @content;
    }
}

Use it like so:

@include headings {
    font: 32px/42px trajan-pro-1, trajan-pro-2;
}

Edit: My personal favourite way of doing this by optionally extending a placeholder selector on each of the heading elements.

h1, h2, h3,
h4, h5, h6 {
    @extend %headings !optional;
}

Then I can target all headings like I would target any single class, for example:

.element > %headings {
    color: red;
}

The question is actually asking for a New array, so I believe a better solution would be to combine Abdennour TOUMI's answer with a clone function:

function clone(obj) {_x000D_
  if (null == obj || "object" != typeof obj) return obj;_x000D_
  const copy = obj.constructor();_x000D_
  for (const attr in obj) {_x000D_
    if (obj.hasOwnProperty(attr)) copy[attr] = obj[attr];_x000D_
  }_x000D_
  return copy;_x000D_
}_x000D_
_x000D_
// With the `clone()` function, you can now do the following:_x000D_
_x000D_
Array.prototype.subarray = function(start, end) {_x000D_
  if (!end) {_x000D_
    end = this.length;_x000D_
  } _x000D_
  const newArray = clone(this);_x000D_
  return newArray.slice(start, end);_x000D_
};_x000D_
_x000D_
// Without a copy you will lose your original array._x000D_
_x000D_
// **Example:**_x000D_
_x000D_
const array = [1, 2, 3, 4, 5];_x000D_
console.log(array.subarray(2)); // print the subarray [3, 4, 5, subarray: function]_x000D_
_x000D_
console.log(array); // print the original array [1, 2, 3, 4, 5, subarray: function]

[http://stackoverflow.com/questions/728360/most-elegant-way-to-clone-a-javascript-object]

I tried the techniques of this post but didnot find any of them so attractive. My solution was to use an imageview and textview and align the imageview top and bottom to the textview. This way I got the desired result. Here's some code:

<RelativeLayout
    android:id="@+id/relativeLayout1"
    android:layout_width="match_parent"
    android:layout_height="48dp" >


    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignTop="@+id/textViewTitle"
        android:layout_alignBottom="@+id/textViewTitle"
        android:src="@drawable/ic_back" />

    <TextView
        android:id="@+id/textViewBack"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignBaseline="@+id/textViewTitle"
        android:layout_alignBottom="@+id/textViewTitle"
        android:layout_toRightOf="@+id/imageView1"
        android:text="Back"
        android:textColor="@color/app_red"
        android:textSize="@dimen/title_size" />
</RelativeLayout>

step 1. stop redis server using below command /etc/init.d/redis-server stop step 2.enter command : sudo nano /etc/redis/redis.conf

step 3.find # requirepass foobared word and remove # and change foobared to YOUR PASSWORD

ex. requirepass root

You passed an argument to a function which didn't take any. For example:

def takes_no_arguments
end

takes_no_arguments 1
# ArgumentError: wrong number of arguments (1 for 0)

I was struggle with this behavior too. I wanted to change div class in jinja based on counter. I was surprised that pythonic way did not work. Following code was reseting my counter on each iteration, so I had only red class.

{% if sloupec3: %}
    {% set counter = 1 %}
    {% for row in sloupec3: %}
        {% if counter == 3 %}
            {% set counter = 1 %}        
        {% endif %} 

        {% if  counter == 1: %}
           <div class="red"> some red div </div>
        {% endif %} 

        {% if counter == 2: %}
           <div class="gray"> some gray div </div>
        {% endif %} 

        {% set counter = counter + 1 %} 

    {% endfor %}

{% endif %}

I used loop.index like this and it works:

{% if sloupec3: %}

    {% for row in sloupec3: %} 

        {% if  loop.index % 2 == 1: %}
           <div class="red"> some red div </div>
        {% endif %} 

        {% if loop.index % 2 == 0: %}
           <div class="gray"> some gray div </div>
        {% endif %}  

    {% endfor %}

{% endif %}

If you use Eclipse you are able to filter by application just like it is possible with Android Studio as presented by shadmazumder.

Just go to logcat, click on Display Saved Filters view, then add new logcat filter. It will appear the following:

Then you add a name to the filter and, at by application name you specify the package of your application.

The best option is prepared statements. Messing around with quotes and escapes is harder work to begin with, and difficult to maintain. Sooner or later you will end up accidentally forgetting to quote something or end up escaping the same string twice, or mess up something like that. Might be years before you find those type of bugs.

http://php.net/manual/en/pdo.prepared-statements.php

Starting from Java 10:

Set<E> oldSet = Set.of();
Set<E> newSet = Set.copyOf(oldSet);

Set.copyOf() returns an unmodifiable Set containing the elements of the given Collection.

The given Collection must not be null, and it must not contain any null elements.

In a query you can just do something like:

SELECT ColumnA * ColumnB FROM table

or

SELECT ColumnA - ColumnB FROM table

You can also create computed columns in your table where you can permanently use your formula.

As you asked the left most bit optional, I have done left most and right most bit optional too, check it out

^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]?$

It matches with

0:0 
00:00
00:0 
0:00
23:59
01:00
00:59

The live link is available here

You can use

insert into table_name
(date_field)
values
(TO_DATE('2003/05/03 21:02:44', 'yyyy/mm/dd hh24:mi:ss'));

Hope it helps.

You can reset the plot by doing this:

dev.off()

You can employ the use of data in jQuery and catch all of the events which then tests it against it's last value (untested):

$(document).ready(function() {  
    $("#fieldId").bind("keyup keydown keypress change blur", function() {
        if ($(this).val() != jQuery.data(this, "lastvalue") {
         alert("changed");
        }
        jQuery.data(this, "lastvalue", $(this).val());
    });
});

This would work pretty good against a long list of items too. Using jQuery.data means you don't have to create a javascript variable to track the value. You could do $("#fieldId1, #fieldId2, #fieldId3, #fieldId14, etc") to track many fields.

UPDATE: Added blur to the bind list.