Programs & Examples On #Lzo

It also might be that you haven't declared you Dependency Injected service, as a provider in the component that you injected it to. That was my case :)

I stumbled upon this recently to free up resource in my cluster. here is the command to delete them all.

kubectl get pods --all-namespaces | grep Terminating | while read line; do 
pod_name=$(echo $line | awk '{print $2}' ) name_space=$(echo $line | awk 
'{print $1}' ); kubectl delete pods $pod_name -n $name_space --grace-period=0 --force; 
done

hope this help someone who read this

The same problem takes me here. After all, I found that link, it's good for me.

Source link

CHECK THE STATUS OF PLUGGABLE DATABASE.

SQL> STARTUP; ORACLE instance started.

Total System Global Area 788529152 bytes Fixed Size 2929352 bytes Variable Size 541068600 bytes Database Buffers 239075328 bytes Redo Buffers 5455872 bytes Database mounted. Database opened. SQL> select name,open_mode from v$pdbs;

NAME OPEN_MODE ------------------------------ ---------- PDB$SEED MOUNTED PDBORCL MOUNTED PDBORCL2 MOUNTED PDBORCL1
MOUNTED

WE NEED TO START PDB$SEED PLUGGABLE DATABASE in UPGRADE STATE FOR THAT

SQL> SHUTDOWN IMMEDIATE;

Database closed. Database dismounted. ORACLE instance shut down.

SQL> STARTUP UPGRADE;

ORACLE instance started.

Total System Global Area 788529152 bytes Fixed Size 2929352 bytes Variable Size 541068600 bytes Database Buffers 239075328 bytes Redo Buffers 5455872 bytes Database mounted. Database opened.

SQL> ALTER PLUGGABLE DATABASE ALL OPEN UPGRADE; Pluggable database altered.

SQL> select name,open_mode from v$pdbs;

NAME OPEN_MODE ------------------------------ ---------- PDB$SEED MIGRATE PDBORCL MIGRATE PDBORCL2 MIGRATE PDBORCL1
MIGRATE

Found a way, thanks to the link here (with the original google group discussion here)

First, Telnet to your server:

telnet 127.0.0.1 11211

Next, list the items to get the slab ids:

stats items
STAT items:3:number 1
STAT items:3:age 498
STAT items:22:number 1
STAT items:22:age 498
END

The first number after ‘items’ is the slab id. Request a cache dump for each slab id, with a limit for the max number of keys to dump:

stats cachedump 3 100
ITEM views.decorators.cache.cache_header..cc7d9 [6 b; 1256056128 s]
END

stats cachedump 22 100
ITEM views.decorators.cache.cache_page..8427e [7736 b; 1256056128 s]
END

import base64
coded_string = '''Q5YACgA...'''
base64.b64decode(coded_string)

worked for me. At the risk of pasting an offensively-long result, I got:

>>> base64.b64decode(coded_string)
2: 'C\x96\x00\n\x00\x00\x00\x00C\x96\x00\x1b\x00\x00\x00\x00C\x96\x00-\x00\x00\x00\x00C\x96\x00?\x00\x00\x00\x00C\x96\x07M\x00\x00\x00\x00C\x96\x07_\x00\x00\x00\x00C\x96\x07p\x00\x00\x00\x00C\x96\x07\x82\x00\x00\x00\x00C\x96\x07\x94\x00\x00\x00\x00C\x96\x07\xa6Cq\xf0\x7fC\x96\x07\xb8DJ\x81\xc7C\x96\x07\xcaD\xa5\x9dtC\x96\x07\xdcD\xb6\x97\x11C\x96\x07\xeeD\x8b\x8flC\x96\x07\xffD\x03\xd4\xaaC\x96\x08\x11B\x05&\xdcC\x96\x08#\x00\x00\x00\x00C\x96\x085C\x0c\xc9\xb7C\x96\x08GCy\xc0\xebC\x96\x08YC\x81\xa4xC\x96\x08kC\x0f@\x9bC\x96\x08}\x00\x00\x00\x00C\x96\x08\x8e\x00\x00\x00\x00C\x96\x08\xa0\x00\x00\x00\x00C\x96\x08\xb2\x00\x00\x00\x00C\x96\x86\xf9\x00\x00\x00\x00C\x96\x87\x0b\x00\x00\x00\x00C\x96\x87\x1d\x00\x00\x00\x00C\x96\x87/\x00\x00\x00\x00C\x96\x87AA\x0b\xe7PC\x96\x87SCI\xf5gC\x96\x87eC\xd4J\xeaC\x96\x87wD\r\x17EC\x96\x87\x89D\x00F6C\x96\x87\x9bC\x9cg\xdeC\x96\x87\xadB\xd56\x0cC\x96\x87\xbf\x00\x00\x00\x00C\x96\x87\xd1\x00\x00\x00\x00C\x96\x87\xe3\x00\x00\x00\x00C\x96\x87\xf5\x00\x00\x00\x00C\x9cY}\x00\x00\x00\x00C\x9cY\x90\x00\x00\x00\x00C\x9cY\xa4\x00\x00\x00\x00C\x9cY\xb7\x00\x00\x00\x00C\x9cY\xcbC\x1f\xbd\xa3C\x9cY\xdeCCz{C\x9cY\xf1CD\x02\xa7C\x9cZ\x05C+\x9d\x97C\x9cZ\x18C\x03R\xe3C\x9cZ,\x00\x00\x00\x00C\x9cZ?
[stuff omitted as it exceeded SO's body length limits]
\xbb\x00\x00\x00\x00D\xc5!7\x00\x00\x00\x00D\xc5!\xb2\x00\x00\x00\x00D\xc7\x14x\x00\x00\x00\x00D\xc7\x14\xf6\x00\x00\x00\x00D\xc7\x15t\x00\x00\x00\x00D\xc7\x15\xf2\x00\x00\x00\x00D\xc7\x16pC5\x9f\xf9D\xc7\x16\xeeC[\xb5\xf5D\xc7\x17lCG\x1b;D\xc7\x17\xeaB\xe3\x0b\xa6D\xc7\x18h\x00\x00\x00\x00D\xc7\x18\xe6\x00\x00\x00\x00D\xc7\x19d\x00\x00\x00\x00D\xc7\x19\xe2\x00\x00\x00\x00D\xc7\xfe\xb4\x00\x00\x00\x00D\xc7\xff3\x00\x00\x00\x00D\xc7\xff\xb2\x00\x00\x00\x00D\xc8\x001\x00\x00\x00\x00'

What problem are you having, specifically?

For others who may come by here, maybe take a look at : http://openhardwaremonitor.org/

Follow that link and at first you might think, "hey that's an Application, that is why it was removed, the question was how to do this from C# code, not to find an application that can tell me the temperature..." This is where it shows you are not willing to invest enough time in reading what "Open Hardware Monitor" also is.

They also include a Data Interface, here is the description:

Data Interface The Open Hardware Monitor publishes all sensor data to WMI (Windows Management Instrumentation). This allows other applications to read and use the sensor information as well. A preliminary documentation of the interface can be found here(click).

When you download it, it contains the OpenHardwareMonitor.exe application, you're not looking for that one. It also contains the OpenHardwareMonitorLib.dll, you're looking for that one.

It is mostly, if not 100%, just a wrapper around the WinRing0 API, which you could choose to wrap your self if you feel like it.

I have tried this out from a C# app myself, and it works. Although it is still in beta, it seemed rather stable. It is also open source so it could be a good starting point instead.

At the end of the day I find it hard to believe that is not on topic of this question.

library(purrr)
x <- x %>% keep(is.numeric)

You can use Bash's time keyword here with an appropriate format string

TIMEFORMAT='It takes %R seconds to complete this task...'
time {
    #command block that takes time to complete...
    #........
 }

Here's what the reference says about TIMEFORMAT:

The value of this parameter is used as a format string specifying how the timing information for pipelines prefixed with the time reserved word should be displayed. The ‘%’ character introduces an escape sequence that is expanded to a time value or other information. The escape sequences and their meanings are as follows; the braces denote optional portions.

%%

    A literal ‘%’.
%[p][l]R

    The elapsed time in seconds.
%[p][l]U

    The number of CPU seconds spent in user mode.
%[p][l]S

    The number of CPU seconds spent in system mode.
%P

    The CPU percentage, computed as (%U + %S) / %R. 

The optional p is a digit specifying the precision, the number of fractional digits after a decimal point. A value of 0 causes no decimal point or fraction to be output. At most three places after the decimal point may be specified; values of p greater than 3 are changed to 3. If p is not specified, the value 3 is used.

The optional l specifies a longer format, including minutes, of the form MMmSS.FFs. The value of p determines whether or not the fraction is included.

If this variable is not set, Bash acts as if it had the value

$'\nreal\t%3lR\nuser\t%3lU\nsys\t%3lS'

If the value is null, no timing information is displayed. A trailing newline is added when the format string is displayed.

You could do something like this:

>>> j = [4, 5, 6, 7, 1, 3, 7, 5]
>>> sum(i > 5 for i in j)
3

It might initially seem strange to add True to True this way, but I don't think it's unpythonic; after all, bool is a subclass of int in all versions since 2.3:

>>> issubclass(bool, int)
True

The following post: sql: selcting top N record per group describes the complicated way of achieving this without subqueries.

It improves on other solutions offered here by:

• Doing everything in a single query
• Being able to properly utilize indexes
• Avoiding subqueries, notoriously known to produce bad execution plans in MySQL

It is however not pretty. A good solution would be achievable were Window Functions (aka Analytic Functions) enabled in MySQL -- but they are not. The trick used in said post utilizes GROUP_CONCAT, which is sometimes described as "poor man's Window Functions for MySQL".

I guess you will get ORA-01741: illegal zero-length identifier if you use the following

SELECT "" AS Contact  FROM Customers;

And if you use the following 2 statements, you will be getting the same null value populated in the column.

SELECT '' AS Contact FROM Customers; OR SELECT null AS Contact FROM Customers;

If code doesn't generate any error, but you don't hear sound - create the player as an instance:

   static var player: AVAudioPlayer!

For me the first solution worked when I did this change :)

This expression

SELECT (((DATEPART(DW, @my_date_var) - 1 ) + @@DATEFIRST ) % 7)

will always return a number between 0 and 6 where

0 -> Sunday
1 -> Monday
2 -> Tuesday
3 -> Wednesday
4 -> Thursday
5 -> Friday
6 -> Saturday

Independently from @@DATEFIRST

So a weekend day is tested like this

SELECT (CASE
           WHEN (((DATEPART(DW, @my_date_var) - 1 ) + @@DATEFIRST ) % 7) IN (0,6)
           THEN 1
           ELSE 0
       END) AS is_weekend_day

Select the System.Web.Mvc assembly in the "References" folder in the solution explorer. Bring up the properties window (F4) and check the Version

a piece of code who work with python to read rs232 just in case somedoby else need it

ser = serial.Serial('/dev/tty.usbserial', 9600, timeout=0.5)
ser.write('*99C\r\n')
time.sleep(0.1)
ser.close()

Daniel Farrell's Bootstrap Combobox does the job perfectly. Here's an example from his GitHub repository.

$(document).ready(function(){_x000D_
  $('.combobox').combobox();_x000D_
  _x000D_
  // bonus: add a placeholder_x000D_
  $('.combobox').attr('placeholder', 'For example, start typing "Pennsylvania"');_x000D_
});

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-combobox/1.1.8/css/bootstrap-combobox.min.css">_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-combobox/1.1.8/js/bootstrap-combobox.min.js"></script>_x000D_
_x000D_
<select class="combobox form-control">_x000D_
  <option></option>_x000D_
  <option value="PA">Pennsylvania</option>_x000D_
  <option value="CT">Connecticut</option>_x000D_
  <option value="NY">New York</option>_x000D_
  <option value="MD">Maryland</option>_x000D_
  <option value="VA">Virginia</option>_x000D_
</select>

As an added bonus, I've included a placeholder in script since applying it to the markup does not hold.

var fileName = req.files.upload.name;

var arr = fileName.split('.');

var extension = arr[length-1];

Quick and dirty

use DB; 

OR

\DB::table...

Actually, I think that the answer given in the question you mentioned is just wrong (UPDATE - 20101106: someone fixed it, this answer refers to the version preceding the edit) and this explains, at least partially, why you run into troubles.

It generates two jar files in logmanager/target: logmanager-0.1.0.jar, and logmanager-0.1.0-jar-with-dependencies.jar.

The first one is the JAR of the logmanager module generated during the package phase by jar:jar (because the module has a packaging of type jar). The second one is the assembly generated by assembly:assembly and should contain the classes from the current module and its dependencies (if you used the descriptor jar-with-dependencies).

I get an error when I double-click on the first jar:

Could not find the main class: com.gorkwobble.logmanager.LogManager. Program will exit.

If you applied the suggested configuration of the link posted as reference, you configured the jar plugin to produce an executable artifact, something like this:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <configuration>
      <archive>
        <manifest>
          <addClasspath>true</addClasspath>
          <mainClass>com.gorkwobble.logmanager.LogManager</mainClass>
        </manifest>
      </archive>
    </configuration>
  </plugin>

So logmanager-0.1.0.jar is indeed executable but 1. this is not what you want (because it doesn't have all dependencies) and 2. it doesn't contain com.gorkwobble.logmanager.LogManager (this is what the error is saying, check the content of the jar).

A slightly different error when I double-click the jar-with-dependencies.jar:

Failed to load Main-Class manifest attribute from: C:\EclipseProjects\logmanager\target\logmanager-0.1.0-jar-with-dependencies.jar

Again, if you configured the assembly plugin as suggested, you have something like this:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <configuration>
      <descriptorRefs>
        <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
    </configuration>
  </plugin>

With this setup, logmanager-0.1.0-jar-with-dependencies.jar contains the classes from the current module and its dependencies but, according to the error, its META-INF/MANIFEST.MF doesn't contain a Main-Class entry (its likely not the same MANIFEST.MF as in logmanager-0.1.0.jar). The jar is actually not executable, which again is not what you want.

So, my suggestion would be to remove the configuration element from the maven-jar-plugin and to configure the maven-assembly-plugin like this:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-jar-plugin</artifactId>
    <version>2.2</version>
    <!-- nothing here -->
  </plugin>
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>2.2-beta-4</version>
    <configuration>
      <descriptorRefs>
        <descriptorRef>jar-with-dependencies</descriptorRef>
      </descriptorRefs>
      <archive>
        <manifest>
          <mainClass>org.sample.App</mainClass>
        </manifest>
      </archive>
    </configuration>
    <executions>
      <execution>
        <phase>package</phase>
        <goals>
          <goal>single</goal>
        </goals>
      </execution>
    </executions>
  </plugin>

Of course, replace org.sample.App with the class you want to have executed. Little bonus, I've bound assembly:single to the package phase so you don't have to run assembly:assembly anymore. Just run mvn install and the assembly will be produced during the standard build.

So, please update your pom.xml with the configuration given above and run mvn clean install. Then, cd into the target directory and try again:

java -jar logmanager-0.1.0-jar-with-dependencies.jar

If you get an error, please update your question with it and post the content of the META-INF/MANIFEST.MF file and the relevant part of your pom.xml (the plugins configuration parts). Also please post the result of:

java -cp logmanager-0.1.0-jar-with-dependencies.jar com.gorkwobble.logmanager.LogManager

to demonstrate it's working fine on the command line (regardless of what eclipse is saying).

EDIT: For Java 6, you need to configure the maven-compiler-plugin. Add this to your pom.xml:

  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <configuration>
      <source>1.6</source>
      <target>1.6</target>
    </configuration>
  </plugin>

I keep on forgetting this and coming back to it again! I think the best answer is a combination of the responses provided so far.

Firstly, & is the variable prefix in sqlplus/sqldeveloper, hence the problem - when it appears, it is expected to be part of a variable name.

SET DEFINE OFF will stop sqlplus interpreting & this way.

But what if you need to use sqlplus variables and literal & characters?

• You need SET DEFINE ON to make variables work
• And SET ESCAPE ON to escape uses of &.

e.g.

set define on
set escape on

define myvar=/forth

select 'back\\ \& &myvar' as swing from dual;

Produces:

old   1: select 'back\\ \& &myvar' from dual
new   1: select 'back\ & /forth' from dual

SWING
--------------
back\ & /forth

If you want to use a different escape character:

set define on
set escape '#'

define myvar=/forth

select 'back\ #& &myvar' as swing from dual;

When you set a specific escape character, you may see 'SP2-0272: escape character cannot be alphanumeric or whitespace'. This probably means you already have the escape character defined, and things get horribly self-referential. The clean way of avoiding this problem is to set escape off first:

set escape off
set escape '#'

Go to conversation tab then come down there is one "close pull request" button is there use that button to close pull request, Take ref of attached image

You probably have a forward declaration of the class, but haven't included the header:

#include <sstream>

//...
QString Stats_Manager::convertInt(int num)
{
    std::stringstream ss;   // <-- also note namespace qualification
    ss << num;
    return ss.str();
}

After you correct the possible dmp file problem, this is a way to ensure that the schema is remapped and imported appropriately. This will also ensure that the tablespace will change also, if needed:

impdp system/<password> SCHEMAS=user1 remap_schema=user1:user2 \
            remap_tablespace=user1:user2 directory=EXPORTDIR \
            dumpfile=user1.dmp logfile=E:\Data\user1.log

EXPORTDIR must be defined in oracle as a directory as the system user

create or replace directory EXPORTDIR as 'E:\Data';
grant read, write on directory EXPORTDIR to user2;

If they're block level elements they won't be affected by text-align: center;. Someone may have set img { display: block; } and that's throwing it out of whack. You can try:

td { text-align: center; }
td * { display: inline; }

and if it looks as desired you should definitely replace * with the desired elements like:

td img, td foo { display: inline; }

Use raw_input instead of input :)

If you use input, then the data you type is is interpreted as a Python Expression which means that you end up with gawd knows what type of object in your target variable, and a heck of a wide range of exceptions that can be generated. So you should NOT use input unless you're putting something in for temporary testing, to be used only by someone who knows a bit about Python expressions.

raw_input always returns a string because, heck, that's what you always type in ... but then you can easily convert it to the specific type you want, and catch the specific exceptions that may occur. Hopefully with that explanation, it's a no-brainer to know which you should use.

Reference

Note: this is only for Python 2. For Python 3, raw_input() has become plain input() and the Python 2 input() has been removed.

www.example.com:443:0 server certificate does NOT include an ID which matches the server name

I was getting this error when trying to start Apache, there is no error with Apache. It's an dependency error on windows 8 - probably the same for 7. Just right click and run as Admin :)

If you're still getting an error check your Antivirus/Firewall is not blocking Xampp or port 443.

Surely:

if (useAdditionalClauses) 
{ 
  results = 
    results.Where(o => o.OrderStatus == OrderStatus.Open && 
    o.CustomerID == customerID)  
} 

Or just another .Where() call like this one (although I don't know why you would want to, unless it's split by another boolean control variable):

if (useAdditionalClauses) 
{ 
  results = results.Where(o => o.OrderStatus == OrderStatus.Open).
    Where(o => o.CustomerID == customerID);
} 

Or another reassignment to results: `results = results.Where(blah).

this answer helped me out a lot and pointed me in the right direction but what worked for me, and hopefully others, is:

menuApp.controller("dynamicMenuController", function($scope, $http) {
$scope.appetizers= [];
$http.get('config/menu.json').success(function(data) { 
    console.log("success!");
    $scope.appetizers = data.appetizers;
        console.log(data.appetizers);
    });    
});

if you want to use report in asp.net then use .rdl if you want to use /view in report builder / report server then use .rdlc just by converting format manually it works

I was the same problem and as Pengyy suggest, that is the fix. Thanks a lot.

My problem on the Browser Console:

PortafolioComponent.html:3 ERROR Error: Error trying to diff '[object Object]'. Only arrays and iterables are allowed(…)

In my case my code fix was:

//productos.service.ts
import { Injectable } from '@angular/core';
import { Http } from '@angular/http';

@Injectable()
export class ProductosService {

  productos:any[] = [];
  cargando:boolean = true;

  constructor( private http:Http) {
    this.cargar_productos();
  }

  public cargar_productos(){

    this.cargando = true;

    this.http.get('https://webpage-88888a1.firebaseio.com/productos.json')
      .subscribe( res => {
        console.log(res.json());
        this.cargando = false;
        this.productos = res.json().productos; // Before this.productos = res.json(); 
      });
  }

}

I had a similar problem using Angular js. i had a rewrite all to index.html in my .htaccess. The solution was to add the correct path slashes in . Each situation is unique, but hope this helps someone.

Working well I'm using \u0020

<string name="hi"> Hi \u0020 </string>
<string name="ten"> \u0020 out of 10  </string>
<string name="youHaveScored">\u0020 you have Scored \u0020</string>

Java file

String finalScore = getString(R.string.hi) +name+ getString(R.string.youHaveScored)+score+ getString(R.string.ten);
               Toast.makeText(getApplicationContext(),finalScore,Toast.LENGTH_LONG).show();

Screenshot here Image of Showing Working of this code

Example code based on answer by TetraDev

Images on right:

* {_x000D_
  outline: .4px dashed red;_x000D_
}_x000D_
_x000D_
.main {_x000D_
  display: flex;_x000D_
  flex-direction: row;_x000D_
  align-items: center;_x000D_
}_x000D_
_x000D_
h1 {_x000D_
  flex-basis: 100%;_x000D_
}_x000D_
_x000D_
img {_x000D_
  margin: 0 5px;_x000D_
  height: 30px;_x000D_
}

<div class="main">_x000D_
  <h1>Secure Payment</h1>_x000D_
  <img src="https://i.stack.imgur.com/i65gn.png">_x000D_
  <img src="https://i.stack.imgur.com/i65gn.png">_x000D_
</div>

Images on left:

* {_x000D_
  outline: .4px dashed red;_x000D_
}_x000D_
_x000D_
.main {_x000D_
  display: flex;_x000D_
  flex-direction: row;_x000D_
  align-items: center;_x000D_
}_x000D_
_x000D_
h1 {_x000D_
  flex-basis: 100%;_x000D_
  text-align: right;_x000D_
}_x000D_
_x000D_
img {_x000D_
  margin: 0 5px;_x000D_
  height: 30px;_x000D_
}

<div class="main">_x000D_
  <img src="https://i.stack.imgur.com/i65gn.png">_x000D_
  <img src="https://i.stack.imgur.com/i65gn.png">_x000D_
  <h1>Secure Payment</h1>_x000D_
</div>

I thought the regular modulus operator would work for this in java, but it can't be hard to code. Just divide the numerator by the denominator, and take the integer portion of the result. Multiply that by the denominator, and subtract the result from the numerator.

x = n / d
xint = Integer portion of x
result = n - d * xint

If the client quota is exceeded it is a server error, avoid 5xx in this instance.

It's working as intended. Your MySQL server has been started with --secure-file-priv option which basically limits from which directories you can load files using LOAD DATA INFILE.

You may use SHOW VARIABLES LIKE "secure_file_priv"; to see the directory that has been configured.

You have two options:

1. Move your file to the directory specified by secure-file-priv.
2. Disable secure-file-priv. This must be removed from startup and cannot be modified dynamically. To do this check your MySQL start up parameters (depending on platform) and my.ini.

The default vector constructor will create an empty vector. As such, you should be able to write:

struct user r = { string(), vector<unsigned char>() };

Note, I've also used the default string constructor instead of "".

You might want to consider making user a class and adding a default constructor that does this for you:

class User {
  User() {}
  string username;
  vector<unsigned char> password;
};

Then just writing:

User r;

Will result in a correctly initialized user.

You can try using command : install.packages('*package_name', dependencies = TRUE)

For example is you have to install 'caret' package in your R machine in linux : install.packages('caret', dependencies = TRUE)

Doing so, all the dependencies for the package will also be downloaded.

This should be as simple as:

with open('somefile.txt', 'a') as the_file:
    the_file.write('Hello\n')

From The Documentation:

Do not use os.linesep as a line terminator when writing files opened in text mode (the default); use a single '\n' instead, on all platforms.

Some useful reading:

• The with statement
• open()
  • 'a' is for append, or use
  • 'w' to write with truncation
• os (particularly os.linesep)

This is works for me

<textarea_x000D_
  type='text'_x000D_
  style="resize: none"_x000D_
>_x000D_
Some text_x000D_
</textarea>

this is the easy way to do that you just need to download the jar file "rs2xml.jar" add it to your project and do that : 1- creat a connection 2- statment and resultset 3- creat a jtable 4- give the result set to DbUtils.resultSetToTableModel(rs) as define in this methode you well get your jtable so easy.

public void afficherAll(String tableName){
        String sql="select * from "+tableName;
        try {
            stmt=con.createStatement();
            rs=stmt.executeQuery(sql);
            tbContTable.setModel(DbUtils.resultSetToTableModel(rs));
        } catch (SQLException e) {
            // TODO Auto-generated catch block
             JOptionPane.showMessageDialog(null, e);
        }       
    }

An "if" is not a loop. Just use the break inside the "if" and it will break out of the "while".

If you ever need to use genuine nested loops, Java has the concept of a labeled break. You can put a label before a loop, and then use the name of the label is the argument to break. It will break outside of the labeled loop.

One thing to note - as I had exactly this problem today, depending on your HTML jQuery may or may not parse it that well. jQuery wouldn't parse my HTML into a correct DOM - on smaller XML compliant files it worked fine, but the HTML I had (that would render in a page) wouldn't parse when passed back to an Ajax callback.

In the end I simply searched manually in the string for the tag I wanted, not ideal but did work.

Same info, just in table form

                  | r   r+   w   w+   a   a+
------------------|--------------------------
read              | +   +        +        +
write             |     +    +   +    +   +
write after seek  |     +    +   +
create            |          +   +    +   +
truncate          |          +   +
position at start | +   +    +   +
position at end   |                   +   +

where meanings are: (just to avoid any misinterpretation)

• read - reading from file is allowed

• write - writing to file is allowed

• create - file is created if it does not exist yet

• trunctate - during opening of the file it is made empty (all content of the file is erased)

• position at start - after file is opened, initial position is set to the start of the file

• position at end - after file is opened, initial position is set to the end of the file

Note: a and a+ always append to the end of file - ignores any seek movements.
BTW. interesting behavior at least on my win7 / python2.7, for new file opened in a+ mode:
write('aa'); seek(0, 0); read(1); write('b') - second write is ignored
write('aa'); seek(0, 0); read(2); write('b') - second write raises IOError

CSS only (no icon sets) Codepen

.nav-link #navBars {_x000D_
margin-top: -3px;_x000D_
padding: 8px 15px 3px;_x000D_
border: 1px solid rgba(0,0,0,.125);_x000D_
border-radius: .25rem;_x000D_
}_x000D_
_x000D_
.nav-link #navBars input {_x000D_
display: none;_x000D_
}_x000D_
_x000D_
.nav-link #navBars span {_x000D_
position: relative;_x000D_
z-index: 1;_x000D_
display: block;_x000D_
margin-bottom: 6px;_x000D_
width: 24px;_x000D_
height: 2px;_x000D_
background-color: rgba(125, 125, 126, 1);_x000D_
border-radius: .25rem;_x000D_
}

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<nav class="navbar navbar-expand-lg navbar-light bg-light">_x000D_
   <!-- <a class="navbar-brand" href="#">_x000D_
      <img src="https://getbootstrap.com/docs/4.0/assets/brand/bootstrap-solid.svg" width="30" height="30" class="d-inline-block align-top" alt="">_x000D_
      Bootstrap_x000D_
      </a> -->_x000D_
   <!-- https://stackoverflow.com/questions/26317679 -->_x000D_
   <a class="nav-link" href="#">_x000D_
      <div id="navBars">_x000D_
         <input type="checkbox" /><span></span>_x000D_
         <span></span>_x000D_
         <span></span>_x000D_
      </div>_x000D_
   </a>_x000D_
   <!-- /26317679 -->_x000D_
   <div class="collapse navbar-collapse" id="navbarNav">_x000D_
      <ul class="navbar-nav">_x000D_
         <li class="nav-item active"><a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a></li>_x000D_
         <li class="nav-item"><a class="nav-link" href="#">Features</a></li>_x000D_
         <li class="nav-item"><a class="nav-link" href="#">Pricing</a></li>_x000D_
         <li class="nav-item"><a class="nav-link disabled" href="#">Disabled</a></li>_x000D_
      </ul>_x000D_
   </div>_x000D_
</nav>

just set the width of the td/column you want to be fixed and the rest will expand.

<td width="200"></td>

The actual reason is that, in a new repo (git init), there is no branch (no master, no branch at all, zero branches)

So when you are pushing for the first time to an empty upstream repo (generally a bare one), that upstream repo has no branch of the same name.

And:

• the default push policy was 'matching' (push all the branches of the same name, creating them if they don't exist),
• the default push policy is now 'simple' (push only the current branch, and only if it has a similarly named remote tracking branch on upstream, since git 1.7.11)

In both cases, since the upstream empty repo has no branch:

• there is no matching named branch yet
• there is no upstream branch at all (with or without the same name! Tracking or not)

That means your local first push has no idea:

• where to push
• what to push (since it cannot find any upstream branch being either recorded as a remote tracking branch, and/or having the same name)

So you need at least to do a:

git push origin master

But if you do only that, you:

• will create an upstream master branch on the upstream (now non-empty repo): good.
• won't record that the local branch 'master' needs to be pushed to upstream (origin) 'master' (upstream branch): bad.

That is why it is recommended, for the first push, to do a:

git push -u origin master

That will record origin/master as a remote tracking branch, and will enable the next push to automatically push master to origin/master.

git checkout master
git push

And that will work too with push policies 'current' or 'upstream'.
In each case, after the initial git push -u origin master, a simple git push will be enough to continue pushing master to the right upstream branch.

Selecting just one branch: fetch/merge vs. pull

People often advise you to separate "fetching" from "merging". They say instead of this:

    git pull remoteR branchB

do this:

    git fetch remoteR
    git merge remoteR branchB

What they don't mention is that such a fetch command will actually fetch all branches from the remote repo, which is not what that pull command does. If you have thousands of branches in the remote repo, but you do not want to see all of them, you can run this obscure command:

    git fetch remoteR refs/heads/branchB:refs/remotes/remoteR/branchB
    git branch -a  # to verify
    git branch -t branchB remoteR/branchB

Of course, that's ridiculously hard to remember, so if you really want to avoid fetching all branches, it is better to alter your .git/config as described in ProGit.

Huh?

The best explanation of all this is in Chapter 9-5 of ProGit, Git Internals - The Refspec (or via github). That is amazingly hard to find via Google.

First, we need to clear up some terminology. For remote-branch-tracking, there are typically 3 different branches to be aware of:

1. The branch on the remote repo: refs/heads/branchB inside the other repo
2. Your remote-tracking branch: refs/remotes/remoteR/branchB in your repo
3. Your own branch: refs/heads/branchB inside your repo

Remote-tracking branches (in refs/remotes) are read-only. You do not modify those directly. You modify your own branch, and then you push to the corresponding branch at the remote repo. The result is not reflected in your refs/remotes until after an appropriate pull or fetch. That distinction was difficult for me to understand from the git man-pages, mainly because the local branch (refs/heads/branchB) is said to "track" the remote-tracking branch when .git/config defines branch.branchB.remote = remoteR.

Think of 'refs' as C++ pointers. Physically, they are files containing SHA-digests, but basically they are just pointers into the commit tree. git fetch will add many nodes to your commit-tree, but how git decides what pointers to move is a bit complicated.

As mentioned in another answer, neither

    git pull remoteR branchB

nor

    git fetch remoteR branchB

would move refs/remotes/branches/branchB, and the latter certainly cannot move refs/heads/branchB. However, both move FETCH_HEAD. (You can cat any of these files inside .git/ to see when they change.) And git merge will refer to FETCH_HEAD, while setting MERGE_ORIG, etc.

You can get this done using html string and setting the html to Textview using
txtView.setText(Html.fromHtml("Your html string here"));

For example :

txtView.setText(Html.fromHtml("<html><body><font size=5 color=red>Hello </font> World </body><html>"));`

because your jQuery code is wrong. Correctly would be:

var theParent = $(this).parent().get(0); 
$(theParent).css('z-index', 3000);

The character is a backslash \

From the bash manual:

The backslash character ‘\’ may be used to remove any special meaning for the next character read and for line continuation.

By dynamically allocating a Movie object with new Movie(), you get a pointer to the new object. You do not need a second vector for the movies, just store the pointers and you can access them. Like Brian wrote, the vector would be defined as

std::vector<Movie *> movies

But be aware that the vector will not delete your objects afterwards, which will result in a memory leak. It probably doesn't matter for your homework, but normally you should delete all pointers when you don't need them anymore.

Towards the second half of Create REST API using ASP.NET MVC that speaks both JSON and plain XML, to quote:

Now we need to accept JSON and XML payload, delivered via HTTP POST. Sometimes your client might want to upload a collection of objects in one shot for batch processing. So, they can upload objects using either JSON or XML format. There's no native support in ASP.NET MVC to automatically parse posted JSON or XML and automatically map to Action parameters. So, I wrote a filter that does it."

He then implements an action filter that maps the JSON to C# objects with code shown.

At ms end Rx lev ranges 0 to -120 dbm Mean antenna power which received at ms end alway less than 1mW.

Thats why it always -ve.

To search for multiple matches in each file, we can sequence several Select-String calls:

Get-ChildItem C:\Logs |
  where { $_ | Select-String -Pattern 'VendorEnquiry' } |
  where { $_ | Select-String -Pattern 'Failed' } |
  ...

At each step, files that do not contain the current pattern will be filtered out, ensuring that the final list of files contains all of the search terms.

Rather than writing out each Select-String call manually, we can simplify this with a filter to match multiple patterns:

filter MultiSelect-String( [string[]]$Patterns ) {
  # Check the current item against all patterns.
  foreach( $Pattern in $Patterns ) {
    # If one of the patterns does not match, skip the item.
    $matched = @($_ | Select-String -Pattern $Pattern)
    if( -not $matched ) {
      return
    }
  }

  # If all patterns matched, pass the item through.
  $_
}

Get-ChildItem C:\Logs | MultiSelect-String 'VendorEnquiry','Failed',...

Now, to satisfy the "Logtime about 11:30 am" part of the example would require finding the log time corresponding to each failure entry. How to do this is highly dependent on the actual structure of the files, but testing for "about" is relatively simple:

function AboutTime( [DateTime]$time, [DateTime]$target, [TimeSpan]$epsilon ) {
  $time -le ($target + $epsilon) -and $time -ge ($target - $epsilon)
}

PS> $epsilon = [TimeSpan]::FromMinutes(5)
PS> $target = [DateTime]'11:30am'
PS> AboutTime '11:00am' $target $epsilon
False
PS> AboutTime '11:28am' $target $epsilon
True
PS> AboutTime '11:35am' $target $epsilon
True

If you are reading this because you are getting error while updating from the "Install new Software" menu, then you need to do this

1. Go to the location from where you want to update ex. http://update.eclemma.org/
2. Download everything in the same order just as it is on site (every folder)
3. Go to "Install new software", but instead of pasting the url of site paste the location of your harddrive where you downloaded the contents

please note: add the suffix file:/// to the location
ex. file:///C:/Users/harry/Downloads/eclox/

Maybe not the best solution but this gets the work done :)

I think you're looking for something like freopen()

The best way I've come up to include the carriage returns/line breaks in the result (Copy/Copy with Headers/Save Results As) for copying to Excel is to add the double quotes in the SELECT, e.g.:

 SELECT '"' + ColumnName + '"' AS ColumnName FROM TableName;

If the column data itself can contain double quotes, they can be escaped by 'double-double quoting':

 SELECT '"' + REPLACE(ColumnName, '"', '""') + '"' AS ColumnName FROM TableName;

Empty column data will show up as just 2 double quotes in SQL Management Studio, but copying to Excel will result in an empty cell. NULL values will be kept, but that can be changed by using CONCAT('"', ColumnName, '"') or COALESCE(ColumnName, '').

As commented by @JohnLBevan, escaping column data can also be done using the built-in function QUOTENAME:

 SELECT QUOTENAME(ColumnName, '"') AS ColumnName FROM TableName;

I guess there is an alternative way to achieve what you are looking for. I don't say its a complete solution but it served the purpose in my case.

What I did is instead of replacing the fragment I just added target fragment. So basically you will be going to use add() method instead replace().

What else I did. I hide my current fragment and also add it to backstack.

Hence it overlaps new fragment over the current fragment without destroying its view.(check that its onDestroyView() method is not being called. Plus adding it to backstate gives me the advantage of resuming the fragment.

Here is the code :

Fragment fragment=new DestinationFragment();
FragmentManager fragmentManager = getFragmentManager();
android.app.FragmentTransaction ft=fragmentManager.beginTransaction();
ft.add(R.id.content_frame, fragment);
ft.hide(SourceFragment.this);
ft.addToBackStack(SourceFragment.class.getName());
ft.commit();

AFAIK System only calls onCreateView() if the view is destroyed or not created. But here we have saved the view by not removing it from memory. So it will not create a new view.

And when you get back from Destination Fragment it will pop the last FragmentTransaction removing top fragment which will make the topmost(SourceFragment's) view to appear over the screen.

COMMENT: As I said it is not a complete solution as it doesn't remove the view of Source fragment and hence occupying more memory than usual. But still, serve the purpose. Also, we are using a totally different mechanism of hiding view instead of replacing it which is non traditional.

So it's not really for how you maintain the state, but for how you maintain the view.

<div id="video_box">
  <div id="video_overlays"></div>
  <div>
    <video id="player" src="http://video.webmfiles.org/big-buck-bunny_trailer.webm" type="video/webm" onclick="this.play();">Your browser does not support this streaming content.</video>
  </div>
</div>

for this you need to just add css like this:

#video_overlays {
  position: absolute;
  background-color: rgba(0, 0, 0, 0.46);
  z-index: 2;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
}
#video_box{position: relative;}

A generic, pure Java solution..

For Windows and MacOS, the following can be inferred (most of the time)...

public static boolean isJDK() {
    String path = System.getProperty("sun.boot.library.path");
    if(path != null && path.contains("jdk")) {
        return true;
    }
    return false;
}

However... on Linux this isn't as reliable... For example...

• Many JREs on Linux contain openjdk the path
• There's no guarantee that the JRE doesn't also contain a JDK.

So a more fail-safe approach is to check for the existence of the javac executable.

public static boolean isJDK() {
    String path = System.getProperty("sun.boot.library.path");
    if(path != null) {
        String javacPath = "";
        if(path.endsWith(File.separator + "bin")) {
            javacPath = path;
        } else {
            int libIndex = path.lastIndexOf(File.separator + "lib");
            if(libIndex > 0) {
                javacPath = path.substring(0, libIndex) + File.separator + "bin";
            }
        }
        if(!javacPath.isEmpty()) {
            return new File(javacPath, "javac").exists() || new File(javacPath, "javac.exe").exists();
        }
    }
    return false;
}

Warning: This will still fail for JRE + JDK combos which report the JRE's sun.boot.library.path identically between the JRE and the JDK. For example, Fedora's JDK will fail (or pass depending on how you look at it) when the above code is run. See unit tests below for more info...

Unit tests:

# Unix
java -XshowSettings:properties -version 2>&1|grep "sun.boot.library.path"
# Windows
java -XshowSettings:properties -version 2>&1|find "sun.boot.library.path"

    # PASS: MacOS AdoptOpenJDK JDK11
    /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib

    # PASS: Windows Oracle JDK12
    c:\Program Files\Java\jdk-12.0.2\bin

    # PASS: Windows Oracle JRE8
    C:\Program Files\Java\jre1.8.0_181\bin

    # PASS: Windows Oracle JDK8
    C:\Program Files\Java\jdk1.8.0_181\bin

    # PASS: Ubuntu AdoptOpenJDK JDK11
    /usr/lib/jvm/adoptopenjdk-11-hotspot-amd64/lib

    # PASS: Ubuntu Oracle JDK11
    /usr/lib/jvm/java-11-oracle/lib

    # PASS: Fedora OpenJDK JDK8
    /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.141-1.b16.fc24.x86_64/jre/lib/amd64

    #### FAIL: Fedora OpenJDK JDK8
    /usr/java/jdk1.8.0_231-amd64/jre/lib/amd64

I believe the original post was about removing the space between the buttons in a row, not adding space.

The trick is that the minimum space between the buttons was due to padding built into the buttons as part of the material design specification.

So, don't use buttons! But a GestureDetector instead. This widget type give the onClick / onTap functionality but without the styling.

See this post for an example.

https://stackoverflow.com/a/56001817/766115

A popular method to tackle the problem of reducing JavaScript references from HTML files is by using a concatenation tool like Sprockets, which preprocesses and concatenates JavaScript source files together.

Apart from reducing the number of references from the HTML files, this will also reduce the number of hits to the server.

You may then want to run the resulting concatenation through a minification tool like jsmin to have it minified.

From this answer: https://stackoverflow.com/a/1418022/605356 :

$ git rev-parse --abbrev-ref HEAD
master

Apparently works with Git 1.6.3 or newer.

I hope the link below helps

MSDN - DateTime.Subtract.Method (DateTime)

There's even examples for C# there. Just simply click the C# language tab.

Good luck

Here's one approach:

SELECT cur.textID, cur.fromEmail, cur.subject, 
     cur.timestamp, cur.read
FROM incomingEmails cur
LEFT JOIN incomingEmails next
    on cur.fromEmail = next.fromEmail
    and cur.timestamp < next.timestamp
WHERE next.timestamp is null
and cur.toUserID = '$userID' 
ORDER BY LOWER(cur.fromEmail)

Basically, you join the table on itself, searching for later rows. In the where clause you state that there cannot be later rows. This gives you only the latest row.

If there can be multiple emails with the same timestamp, this query would need refining. If there's an incremental ID column in the email table, change the JOIN like:

LEFT JOIN incomingEmails next
    on cur.fromEmail = next.fromEmail
    and cur.id < next.id

vertical-align applies to the elements being aligned, not their parent element. To vertically align the div's children, do this instead:

div > * {
    vertical-align:middle;  // Align children to middle of line
}

See: http://jsfiddle.net/dfmx123/TFPx8/1186/

NOTE: vertical-align is relative to the current text line, not the full height of the parent div. If you wanted the parent div to be taller and still have the elements vertically centered, set the div's line-height property instead of its height. Follow jsfiddle link above for an example.

You can try VbsEdit. Get the latest version from Adersoft's VbsEdit http://www.vbsedit.com its a small download but it is a powerful tool to create and edit vbs files and convert them into executables without unpacking to temporary folder. (unless you get an old version like version 4.x.x.x) I've been using this program since 2008, and it's free to evaluate forever but comes with a reminder to activate and each time you Start your script from the vbsedit window you will have to wait a few seconds, Or you could purchase it for $60 to remove those minor annoyances.
Unlike ScriptCryptor, the converted exe won't have any limitations if you are still evaluating, it will run without any unwanted additional windows.

It might be help someone. Similar example.

This is our Codable class to bind data. You can easily create this class using SwiftyJsonAccelerator

 class ModelPushNotificationFilesFile: Codable {

  enum CodingKeys: String, CodingKey {
    case url
    case id
    case fileExtension = "file_extension"
    case name
  }

  var url: String?
  var id: Int?
  var fileExtension: String?
  var name: String?

  init (url: String?, id: Int?, fileExtension: String?, name: String?) {
    self.url = url
    self.id = id
    self.fileExtension = fileExtension
    self.name = name
  }

  required init(from decoder: Decoder) throws {
    let container = try decoder.container(keyedBy: CodingKeys.self)
    url = try container.decodeIfPresent(String.self, forKey: .url)
    id = try container.decodeIfPresent(Int.self, forKey: .id)
    fileExtension = try container.decodeIfPresent(String.self, forKey: .fileExtension)
    name = try container.decodeIfPresent(String.self, forKey: .name)
  }

}

This is Json String

    let jsonString = "[{\"name\":\"\",\"file_extension\":\"\",\"id\":10684,\"url\":\"https:\\/\\/homepages.cae.wisc.edu\\/~ece533\\/images\\/tulips.png\"},

{\"name\":\"\",\"file_extension\":\"\",\"id\":10684,\"url\":\"https:\\/\\/homepages.cae.wisc.edu\\/~ece533\\/images\\/arctichare.png\"},

{\"name\":\"\",\"file_extension\":\"\",\"id\":10684,\"url\":\"https:\\/\\/homepages.cae.wisc.edu\\/~ece533\\/images\\/serrano.png\"},

{\"name\":\"\",\"file_extension\":\"\",\"id\":10684,\"url\":\"https:\\/\\/homepages.cae.wisc.edu\\/~ece533\\/images\\/peppers.png\"},

{\"name\":\"\",\"file_extension\":\"\",\"id\":10684,\"url\":\"https:\\/\\/homepages.cae.wisc.edu\\/~ece533\\/images\\/pool.png\"}]"

Here we convert to swift object.

   let jsonData = Data(jsonString.utf8)

        let decoder = JSONDecoder()

        do {
            let fileArray = try decoder.decode([ModelPushNotificationFilesFile].self, from: jsonData)
            print(fileArray)
            print(fileArray[0].url)
        } catch {
            print(error.localizedDescription)
        }

In my case (Windows 10) the reason was that I dared to unzip the android sdk into non default folder. When I moved it to the default one c:/Users/[username]/AppData/Local/Android/Sdk and changed the paths in Android Studio and System Variables, it started to work.

Try This url with valid userid and access token:

https://graph.facebook.com/{userid}/photos?limit=20&access_token={access_token}

once again Make sure these 2 things happen correctly nothing more than that. (FOR ECLIPSE USERS)

1) copy the jar file from --> C:\Users(your-username)\android-sdks\extras\google\google_play_services\libproject\google-play-services_lib\libs\ google-play-services.jar

2) Right Click Project--> Build Path -> Add External Archive-> google-play-services.jar

I tested this code and it works great:

class MyClass: UIView {        
    class func instanceFromNib() -> UIView {
        return UINib(nibName: "nib file name", bundle: nil).instantiateWithOwner(nil, options: nil)[0] as UIView
    }    
}

Initialise the view and use it like below:

var view = MyClass.instanceFromNib()
self.view.addSubview(view)

OR

var view = MyClass.instanceFromNib
self.view.addSubview(view())

UPDATE Swift >=3.x & Swift >=4.x

class func instanceFromNib() -> UIView {
    return UINib(nibName: "nib file name", bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! UIView
}

If you just want the INSERT queries, use the following:

mysqldump --skip-triggers --compact --no-create-info

jQuery.post(post_url,{ content: "John" } )_x000D_
 .done(function( data ) {_x000D_
   _x000D_
   _x000D_
 });_x000D_
 

I used the technique what u have replied above, it works fine but my problem is i need to generate a pdf conent using john as text . I have been able to echo the passed data. but getting empty in when generating pdf uisng below content ples check

ob_start();_x000D_
        _x000D_
   include_once(JPATH_SITE .'/components/com_gaevents/pdfgenerator.php');_x000D_
   $content = ob_get_clean();_x000D_
   _x000D_
  _x000D_
  _x000D_
    $test = $_SESSION['content'] ;_x000D_
  _x000D_
   require_once(JPATH_SITE.'/html2pdf/html2pdf.class.php');_x000D_
            $html2pdf = new HTML2PDF('P', 'A4', 'en', true, 'UTF-8',0 );   _x000D_
    $html2pdf->setDefaultFont('Arial');_x000D_
    $html2pdf->WriteHTML($test);

You can make an Embedded class, which contains your two keys, and then have a reference to that class as EmbeddedId in your Entity.

You would need the @EmbeddedId and @Embeddable annotations.

@Entity
public class YourEntity {
    @EmbeddedId
    private MyKey myKey;

    @Column(name = "ColumnA")
    private String columnA;

    /** Your getters and setters **/
}

@Embeddable
public class MyKey implements Serializable {

    @Column(name = "Id", nullable = false)
    private int id;

    @Column(name = "Version", nullable = false)
    private int version;

    /** getters and setters **/
}

Another way to achieve this task is to use @IdClass annotation, and place both your id in that IdClass. Now you can use normal @Id annotation on both the attributes

@Entity
@IdClass(MyKey.class)
public class YourEntity {
   @Id
   private int id;
   @Id
   private int version;

}

public class MyKey implements Serializable {
   private int id;
   private int version;
}

You can use the following with objects, unfortunately this does not work with strings though.

double? amount = (double?)someObject;

I use it for wrapping a session variable in a property (on a base page).. so my actual usage is (in my base page):

public int? OrganisationID
{
    get { return (int?)Session[Constants.Session_Key_OrganisationID]; }
    set { Session[Constants.Session_Key_OrganisationID] = value; }
}

I'm able to check for null in page logic:

if (base.OrganisationID == null)
    // do stuff

You cannot assign NULL or 0 to a C++ std::string object, because the object is not a pointer. This is one key difference from C-style strings; a C-style string can either be NULL or a valid string, whereas C++ std::strings always store some value.

There is no easy fix to this. If you'd like to reserve a sentinel value (say, the empty string), then you could do something like

const std::string NOT_A_STRING = "";

mValue = NOT_A_STRING;

Alternatively, you could store a pointer to a string so that you can set it to null:

std::string* mValue = NULL;

if (value) {
    mValue = new std::string(value);
}

Hope this helps!

var newData = [1,2,3,4,5,6,7];
var chart = $('#chartjs').highcharts();
chart.series[0].setData(newData, true);

Explanation:
Variable newData contains value that want to update in chart. Variable chart is an object of a chart. setData is a method provided by highchart to update data.

Method setData contains two parameters, in first parameter we need to pass new value as array and second param is Boolean value. If true then chart updates itself and if false then we have to use redraw() method to update chart (i.e chart.redraw();)

http://jsfiddle.net/NxEnH/8/

this help you to understand what is the type of error

<?php
// A valid json string
$json[] = '{"Organization": "PHP Documentation Team"}';

// An invalid json string which will cause an syntax 
// error, in this case we used ' instead of " for quotation
$json[] = "{'Organization': 'PHP Documentation Team'}";


foreach ($json as $string) {
    echo 'Decoding: ' . $string;
    json_decode($string);

    switch (json_last_error()) {
        case JSON_ERROR_NONE:
            echo ' - No errors';
        break;
        case JSON_ERROR_DEPTH:
            echo ' - Maximum stack depth exceeded';
        break;
        case JSON_ERROR_STATE_MISMATCH:
            echo ' - Underflow or the modes mismatch';
        break;
        case JSON_ERROR_CTRL_CHAR:
            echo ' - Unexpected control character found';
        break;
        case JSON_ERROR_SYNTAX:
            echo ' - Syntax error, malformed JSON';
        break;
        case JSON_ERROR_UTF8:
            echo ' - Malformed UTF-8 characters, possibly incorrectly encoded';
        break;
        default:
            echo ' - Unknown error';
        break;
    }

    echo PHP_EOL;
}
?>

In PHP 5.5+, you can do

function limit($iterable, $limit) {
    foreach ($iterable as $key => $value) {
        if (!$limit--) break;
        yield $key => $value;
    }
}

foreach (limit($arr, 10) as $key => $value) {
    // do stuff
}

Generators rock.

I found this method working quite well (for me) to produce a flat array of unique values:

$uniqueNames = User::select('name')->distinct()->pluck('name')->toArray();

If you ran ->toSql() on this query builder, you will see it generates a query like this:

select distinct `name` from `users`

The ->pluck() is handled by illuminate\collection lib (not via sql query).

Take a look into NSColorWell class reference.

Without jQuery:

Native JavaScript is always going to be faster. In this case: (example)

if (document.querySelector('.mydivclass') !== null) {
    // .. it exists
}

If you want to check to see if a parent element contains another element with a specific class, you could use either of the following. (example)

var parent = document.querySelector('.parent');

if (parent.querySelector('.child') !== null) {
    // .. it exists as a child
}

Alternatively, you can use the .contains() method on the parent element. (example)

var parent = document.querySelector('.parent'),
    child = document.querySelector('.child');

if (parent.contains(child)) {
    // .. it exists as a child
}

..and finally, if you want to check to see if a given element merely contains a certain class, use:

if (el.classList.contains(className)) {
    // .. el contains the class
}

<?php
$dbname = 'mysql_dbname';
if (!mysql_connect('mysql_host', 'mysql_user', 'mysql_password')) {
echo 'Could not connect to mysql';
exit;
}
$sql = "SHOW TABLES FROM $dbname";
$result = mysql_query($sql);
if (!$result) {
echo "DB Error, could not list tables\n";
echo 'MySQL Error: ' . mysql_error();
exit;
}
while ($row = mysql_fetch_row($result)) {
echo "Table: {$row[0]}\n";
}
mysql_free_result($result);
?>
//Try This code is running perfectly !!!!!!!!!!

@Controller ? @RestController

I had the same issue and I noticed that my controller was also annotated with @Controller. Replacing it with @RestController solved the issue. Here is the explanation from Spring Web MVC:

@RestController is a composed annotation that is itself meta-annotated with @Controller and @ResponseBody indicating a controller whose every method inherits the type-level @ResponseBody annotation and therefore writes directly to the response body vs view resolution and rendering with an HTML template.

I was facing the same problem. It works for me. Please check this.

json_encode($array,JSON_UNESCAPED_UNICODE);

Here is the solution , follow the below link Step by Step :

http://www.mkyong.com/webservices/jax-ws/suncertpathbuilderexception-unable-to-find-valid-certification-path-to-requested-target/

JAVA FILE : which is missing from the blog

/*
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Sun Microsystems nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */



import java.io.*;
import java.net.URL;

import java.security.*;
import java.security.cert.*;

import javax.net.ssl.*;

public class InstallCert {

    public static void main(String[] args) throws Exception {
    String host;
    int port;
    char[] passphrase;
    if ((args.length == 1) || (args.length == 2)) {
        String[] c = args[0].split(":");
        host = c[0];
        port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);
        String p = (args.length == 1) ? "changeit" : args[1];
        passphrase = p.toCharArray();
    } else {
        System.out.println("Usage: java InstallCert <host>[:port] [passphrase]");
        return;
    }

    File file = new File("jssecacerts");
    if (file.isFile() == false) {
        char SEP = File.separatorChar;
        File dir = new File(System.getProperty("java.home") + SEP
            + "lib" + SEP + "security");
        file = new File(dir, "jssecacerts");
        if (file.isFile() == false) {
        file = new File(dir, "cacerts");
        }
    }
    System.out.println("Loading KeyStore " + file + "...");
    InputStream in = new FileInputStream(file);
    KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
    ks.load(in, passphrase);
    in.close();

    SSLContext context = SSLContext.getInstance("TLS");
    TrustManagerFactory tmf =
        TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
    tmf.init(ks);
    X509TrustManager defaultTrustManager = (X509TrustManager)tmf.getTrustManagers()[0];
    SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);
    context.init(null, new TrustManager[] {tm}, null);
    SSLSocketFactory factory = context.getSocketFactory();

    System.out.println("Opening connection to " + host + ":" + port + "...");
    SSLSocket socket = (SSLSocket)factory.createSocket(host, port);
    socket.setSoTimeout(10000);
    try {
        System.out.println("Starting SSL handshake...");
        socket.startHandshake();
        socket.close();
        System.out.println();
        System.out.println("No errors, certificate is already trusted");
    } catch (SSLException e) {
        System.out.println();
        e.printStackTrace(System.out);
    }

    X509Certificate[] chain = tm.chain;
    if (chain == null) {
        System.out.println("Could not obtain server certificate chain");
        return;
    }

    BufferedReader reader =
        new BufferedReader(new InputStreamReader(System.in));

    System.out.println();
    System.out.println("Server sent " + chain.length + " certificate(s):");
    System.out.println();
    MessageDigest sha1 = MessageDigest.getInstance("SHA1");
    MessageDigest md5 = MessageDigest.getInstance("MD5");
    for (int i = 0; i < chain.length; i++) {
        X509Certificate cert = chain[i];
        System.out.println
            (" " + (i + 1) + " Subject " + cert.getSubjectDN());
        System.out.println("   Issuer  " + cert.getIssuerDN());
        sha1.update(cert.getEncoded());
        System.out.println("   sha1    " + toHexString(sha1.digest()));
        md5.update(cert.getEncoded());
        System.out.println("   md5     " + toHexString(md5.digest()));
        System.out.println();
    }

    System.out.println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");
    String line = reader.readLine().trim();
    int k;
    try {
        k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;
    } catch (NumberFormatException e) {
        System.out.println("KeyStore not changed");
        return;
    }

    X509Certificate cert = chain[k];
    String alias = host + "-" + (k + 1);
    ks.setCertificateEntry(alias, cert);

    OutputStream out = new FileOutputStream("jssecacerts");
    ks.store(out, passphrase);
    out.close();

    System.out.println();
    System.out.println(cert);
    System.out.println();
    System.out.println
        ("Added certificate to keystore 'jssecacerts' using alias '"
        + alias + "'");
    }

    private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();

    private static String toHexString(byte[] bytes) {
        StringBuilder sb = new StringBuilder(bytes.length * 3);
        for (int b : bytes) {
            b &= 0xff;
            sb.append(HEXDIGITS[b >> 4]);
            sb.append(HEXDIGITS[b & 15]);
            sb.append(' ');
        }
        return sb.toString();
    }

    private static class SavingTrustManager implements X509TrustManager {

    private final X509TrustManager tm;
    private X509Certificate[] chain;

    SavingTrustManager(X509TrustManager tm) {
        this.tm = tm;
    }

    public X509Certificate[] getAcceptedIssuers() {
        throw new UnsupportedOperationException();
    }

    public void checkClientTrusted(X509Certificate[] chain, String authType)
        throws CertificateException {
        throw new UnsupportedOperationException();
    }

    public void checkServerTrusted(X509Certificate[] chain, String authType)
        throws CertificateException {
        this.chain = chain;
        tm.checkServerTrusted(chain, authType);
    }
    }

}

Boost stacktrace

Documented at: https://www.boost.org/doc/libs/1_66_0/doc/html/stacktrace/getting_started.html#stacktrace.getting_started.how_to_print_current_call_stack

This is the most convenient option I've seen so far, because it:

• can actually print out the line numbers.

  It just makes calls to addr2line however, which is ugly and might be slow if your are taking too many traces.

• demangles by default

• Boost is header only, so no need to modify your build system most likely

boost_stacktrace.cpp

#include <iostream>

#define BOOST_STACKTRACE_USE_ADDR2LINE
#include <boost/stacktrace.hpp>

void my_func_2(void) {
    std::cout << boost::stacktrace::stacktrace() << std::endl;
}

void my_func_1(double f) {
    (void)f;
    my_func_2();
}

void my_func_1(int i) {
    (void)i;
    my_func_2();
}

int main(int argc, char **argv) {
    long long unsigned int n;
    if (argc > 1) {
        n = strtoul(argv[1], NULL, 0);
    } else {
        n = 1;
    }
    for (long long unsigned int i = 0; i < n; ++i) {
        my_func_1(1);   // line 28
        my_func_1(2.0); // line 29
    }
}

Unfortunately, it seems to be a more recent addition, and the package libboost-stacktrace-dev is not present in Ubuntu 16.04, only 18.04:

sudo apt-get install libboost-stacktrace-dev
g++ -fno-pie -ggdb3 -O0 -no-pie -o boost_stacktrace.out -std=c++11 \
  -Wall -Wextra -pedantic-errors boost_stacktrace.cpp -ldl
./boost_stacktrace.out

We have to add -ldl at the end or else compilation fails.

Output:

 0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::basic_stacktrace() at /usr/include/boost/stacktrace/stacktrace.hpp:129
 1# my_func_1(int) at /home/ciro/test/boost_stacktrace.cpp:18
 2# main at /home/ciro/test/boost_stacktrace.cpp:29 (discriminator 2)
 3# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
 4# _start in ./boost_stacktrace.out

 0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::basic_stacktrace() at /usr/include/boost/stacktrace/stacktrace.hpp:129
 1# my_func_1(double) at /home/ciro/test/boost_stacktrace.cpp:13
 2# main at /home/ciro/test/boost_stacktrace.cpp:27 (discriminator 2)
 3# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
 4# _start in ./boost_stacktrace.out

The output and is further explained on the "glibc backtrace" section below, which is analogous.

Note how my_func_1(int) and my_func_1(float), which are mangled due to function overload, were nicely demangled for us.

Note that the first int calls is off by one line (28 instead of 27 and the second one is off by two lines (27 instead of 29). It was suggested in the comments that this is because the following instruction address is being considered, which makes 27 become 28, and 29 jump off the loop and become 27.

We then observe that with -O3, the output is completely mutilated:

 0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::size() const at /usr/include/boost/stacktrace/stacktrace.hpp:215
 1# my_func_1(double) at /home/ciro/test/boost_stacktrace.cpp:12
 2# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
 3# _start in ./boost_stacktrace.out

 0# boost::stacktrace::basic_stacktrace<std::allocator<boost::stacktrace::frame> >::size() const at /usr/include/boost/stacktrace/stacktrace.hpp:215
 1# main at /home/ciro/test/boost_stacktrace.cpp:31
 2# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
 3# _start in ./boost_stacktrace.out

Backtraces are in general irreparably mutilated by optimizations. Tail call optimization is a notable example of that: What is tail call optimization?

Benchmark run on -O3:

time  ./boost_stacktrace.out 1000 >/dev/null

Output:

real    0m43.573s
user    0m30.799s
sys     0m13.665s

So as expected, we see that this method is extremely slow likely to to external calls to addr2line, and is only going to be feasible if a limited number of calls are being made.

Each backtrace print seems to take hundreds of milliseconds, so be warned that if a backtrace happens very often, program performance will suffer significantly.

Tested on Ubuntu 19.10, GCC 9.2.1, boost 1.67.0.

glibc backtrace

Documented at: https://www.gnu.org/software/libc/manual/html_node/Backtraces.html

main.c

#include <stdio.h>
#include <stdlib.h>

/* Paste this on the file you want to debug. */
#include <stdio.h>
#include <execinfo.h>
void print_trace(void) {
    char **strings;
    size_t i, size;
    enum Constexpr { MAX_SIZE = 1024 };
    void *array[MAX_SIZE];
    size = backtrace(array, MAX_SIZE);
    strings = backtrace_symbols(array, size);
    for (i = 0; i < size; i++)
        printf("%s\n", strings[i]);
    puts("");
    free(strings);
}

void my_func_3(void) {
    print_trace();
}

void my_func_2(void) {
    my_func_3();
}

void my_func_1(void) {
    my_func_3();
}

int main(void) {
    my_func_1(); /* line 33 */
    my_func_2(); /* line 34 */
    return 0;
}

Compile:

gcc -fno-pie -ggdb3 -O3 -no-pie -o main.out -rdynamic -std=c99 \
  -Wall -Wextra -pedantic-errors main.c

-rdynamic is the key required option.

Run:

./main.out

Outputs:

./main.out(print_trace+0x2d) [0x400a3d]
./main.out(main+0x9) [0x4008f9]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f35a5aad830]
./main.out(_start+0x29) [0x400939]

./main.out(print_trace+0x2d) [0x400a3d]
./main.out(main+0xe) [0x4008fe]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f35a5aad830]
./main.out(_start+0x29) [0x400939]

So we immediately see that an inlining optimization happened, and some functions were lost from the trace.

If we try to get the addresses:

addr2line -e main.out 0x4008f9 0x4008fe

we obtain:

/home/ciro/main.c:21
/home/ciro/main.c:36

which is completely off.

If we do the same with -O0 instead, ./main.out gives the correct full trace:

./main.out(print_trace+0x2e) [0x4009a4]
./main.out(my_func_3+0x9) [0x400a50]
./main.out(my_func_1+0x9) [0x400a68]
./main.out(main+0x9) [0x400a74]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f4711677830]
./main.out(_start+0x29) [0x4008a9]

./main.out(print_trace+0x2e) [0x4009a4]
./main.out(my_func_3+0x9) [0x400a50]
./main.out(my_func_2+0x9) [0x400a5c]
./main.out(main+0xe) [0x400a79]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0) [0x7f4711677830]
./main.out(_start+0x29) [0x4008a9]

and then:

addr2line -e main.out 0x400a74 0x400a79

gives:

/home/cirsan01/test/main.c:34
/home/cirsan01/test/main.c:35

so the lines are off by just one, TODO why? But this might still be usable.

Conclusion: backtraces can only possibly show perfectly with -O0. With optimizations, the original backtrace is fundamentally modified in the compiled code.

I couldn't find a simple way to automatically demangle C++ symbols with this however, here are some hacks:

• https://panthema.net/2008/0901-stacktrace-demangled/
• https://gist.github.com/fmela/591333/c64f4eb86037bb237862a8283df70cdfc25f01d3

Tested on Ubuntu 16.04, GCC 6.4.0, libc 2.23.

glibc backtrace_symbols_fd

This helper is a bit more convenient than backtrace_symbols, and produces basically identical output:

/* Paste this on the file you want to debug. */
#include <execinfo.h>
#include <stdio.h>
#include <unistd.h>
void print_trace(void) {
    size_t i, size;
    enum Constexpr { MAX_SIZE = 1024 };
    void *array[MAX_SIZE];
    size = backtrace(array, MAX_SIZE);
    backtrace_symbols_fd(array, size, STDOUT_FILENO);
    puts("");
}

Tested on Ubuntu 16.04, GCC 6.4.0, libc 2.23.

glibc backtrace with C++ demangling hack 1: -export-dynamic + dladdr

Adapted from: https://gist.github.com/fmela/591333/c64f4eb86037bb237862a8283df70cdfc25f01d3

This is a "hack" because it requires changing the ELF with -export-dynamic.

glibc_ldl.cpp

#include <dlfcn.h>     // for dladdr
#include <cxxabi.h>    // for __cxa_demangle

#include <cstdio>
#include <string>
#include <sstream>
#include <iostream>

// This function produces a stack backtrace with demangled function & method names.
std::string backtrace(int skip = 1)
{
    void *callstack[128];
    const int nMaxFrames = sizeof(callstack) / sizeof(callstack[0]);
    char buf[1024];
    int nFrames = backtrace(callstack, nMaxFrames);
    char **symbols = backtrace_symbols(callstack, nFrames);

    std::ostringstream trace_buf;
    for (int i = skip; i < nFrames; i++) {
        Dl_info info;
        if (dladdr(callstack[i], &info)) {
            char *demangled = NULL;
            int status;
            demangled = abi::__cxa_demangle(info.dli_sname, NULL, 0, &status);
            std::snprintf(
                buf,
                sizeof(buf),
                "%-3d %*p %s + %zd\n",
                i,
                (int)(2 + sizeof(void*) * 2),
                callstack[i],
                status == 0 ? demangled : info.dli_sname,
                (char *)callstack[i] - (char *)info.dli_saddr
            );
            free(demangled);
        } else {
            std::snprintf(buf, sizeof(buf), "%-3d %*p\n",
                i, (int)(2 + sizeof(void*) * 2), callstack[i]);
        }
        trace_buf << buf;
        std::snprintf(buf, sizeof(buf), "%s\n", symbols[i]);
        trace_buf << buf;
    }
    free(symbols);
    if (nFrames == nMaxFrames)
        trace_buf << "[truncated]\n";
    return trace_buf.str();
}

void my_func_2(void) {
    std::cout << backtrace() << std::endl;
}

void my_func_1(double f) {
    (void)f;
    my_func_2();
}

void my_func_1(int i) {
    (void)i;
    my_func_2();
}

int main() {
    my_func_1(1);
    my_func_1(2.0);
}

Compile and run:

g++ -fno-pie -ggdb3 -O0 -no-pie -o glibc_ldl.out -std=c++11 -Wall -Wextra \
  -pedantic-errors -fpic glibc_ldl.cpp -export-dynamic -ldl
./glibc_ldl.out 

output:

1             0x40130a my_func_2() + 41
./glibc_ldl.out(_Z9my_func_2v+0x29) [0x40130a]
2             0x40139e my_func_1(int) + 16
./glibc_ldl.out(_Z9my_func_1i+0x10) [0x40139e]
3             0x4013b3 main + 18
./glibc_ldl.out(main+0x12) [0x4013b3]
4       0x7f7594552b97 __libc_start_main + 231
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f7594552b97]
5             0x400f3a _start + 42
./glibc_ldl.out(_start+0x2a) [0x400f3a]

1             0x40130a my_func_2() + 41
./glibc_ldl.out(_Z9my_func_2v+0x29) [0x40130a]
2             0x40138b my_func_1(double) + 18
./glibc_ldl.out(_Z9my_func_1d+0x12) [0x40138b]
3             0x4013c8 main + 39
./glibc_ldl.out(main+0x27) [0x4013c8]
4       0x7f7594552b97 __libc_start_main + 231
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f7594552b97]
5             0x400f3a _start + 42
./glibc_ldl.out(_start+0x2a) [0x400f3a]

Tested on Ubuntu 18.04.

glibc backtrace with C++ demangling hack 2: parse backtrace output

Shown at: https://panthema.net/2008/0901-stacktrace-demangled/

This is a hack because it requires parsing.

TODO get it to compile and show it here.

libunwind

TODO does this have any advantage over glibc backtrace? Very similar output, also requires modifying the build command, but not part of glibc so requires an extra package installation.

Code adapted from: https://eli.thegreenplace.net/2015/programmatic-access-to-the-call-stack-in-c/

main.c

/* This must be on top. */
#define _XOPEN_SOURCE 700

#include <stdio.h>
#include <stdlib.h>

/* Paste this on the file you want to debug. */
#define UNW_LOCAL_ONLY
#include <libunwind.h>
#include <stdio.h>
void print_trace() {
    char sym[256];
    unw_context_t context;
    unw_cursor_t cursor;
    unw_getcontext(&context);
    unw_init_local(&cursor, &context);
    while (unw_step(&cursor) > 0) {
        unw_word_t offset, pc;
        unw_get_reg(&cursor, UNW_REG_IP, &pc);
        if (pc == 0) {
            break;
        }
        printf("0x%lx:", pc);
        if (unw_get_proc_name(&cursor, sym, sizeof(sym), &offset) == 0) {
            printf(" (%s+0x%lx)\n", sym, offset);
        } else {
            printf(" -- error: unable to obtain symbol name for this frame\n");
        }
    }
    puts("");
}

void my_func_3(void) {
    print_trace();
}

void my_func_2(void) {
    my_func_3();
}

void my_func_1(void) {
    my_func_3();
}

int main(void) {
    my_func_1(); /* line 46 */
    my_func_2(); /* line 47 */
    return 0;
}

Compile and run:

sudo apt-get install libunwind-dev
gcc -fno-pie -ggdb3 -O3 -no-pie -o main.out -std=c99 \
  -Wall -Wextra -pedantic-errors main.c -lunwind

Either #define _XOPEN_SOURCE 700 must be on top, or we must use -std=gnu99:

• Is the type `stack_t` no longer defined on linux?
• Glibc - error in ucontext.h, but only with -std=c11

Run:

./main.out

Output:

0x4007db: (main+0xb)
0x7f4ff50aa830: (__libc_start_main+0xf0)
0x400819: (_start+0x29)

0x4007e2: (main+0x12)
0x7f4ff50aa830: (__libc_start_main+0xf0)
0x400819: (_start+0x29)

and:

addr2line -e main.out 0x4007db 0x4007e2

gives:

/home/ciro/main.c:34
/home/ciro/main.c:49

With -O0:

0x4009cf: (my_func_3+0xe)
0x4009e7: (my_func_1+0x9)
0x4009f3: (main+0x9)
0x7f7b84ad7830: (__libc_start_main+0xf0)
0x4007d9: (_start+0x29)

0x4009cf: (my_func_3+0xe)
0x4009db: (my_func_2+0x9)
0x4009f8: (main+0xe)
0x7f7b84ad7830: (__libc_start_main+0xf0)
0x4007d9: (_start+0x29)

and:

addr2line -e main.out 0x4009f3 0x4009f8

gives:

/home/ciro/main.c:47
/home/ciro/main.c:48

Tested on Ubuntu 16.04, GCC 6.4.0, libunwind 1.1.

libunwind with C++ name demangling

Code adapted from: https://eli.thegreenplace.net/2015/programmatic-access-to-the-call-stack-in-c/

unwind.cpp

#define UNW_LOCAL_ONLY
#include <cxxabi.h>
#include <libunwind.h>
#include <cstdio>
#include <cstdlib>
#include <iostream>

void backtrace() {
  unw_cursor_t cursor;
  unw_context_t context;

  // Initialize cursor to current frame for local unwinding.
  unw_getcontext(&context);
  unw_init_local(&cursor, &context);

  // Unwind frames one by one, going up the frame stack.
  while (unw_step(&cursor) > 0) {
    unw_word_t offset, pc;
    unw_get_reg(&cursor, UNW_REG_IP, &pc);
    if (pc == 0) {
      break;
    }
    std::printf("0x%lx:", pc);

    char sym[256];
    if (unw_get_proc_name(&cursor, sym, sizeof(sym), &offset) == 0) {
      char* nameptr = sym;
      int status;
      char* demangled = abi::__cxa_demangle(sym, nullptr, nullptr, &status);
      if (status == 0) {
        nameptr = demangled;
      }
      std::printf(" (%s+0x%lx)\n", nameptr, offset);
      std::free(demangled);
    } else {
      std::printf(" -- error: unable to obtain symbol name for this frame\n");
    }
  }
}

void my_func_2(void) {
    backtrace();
    std::cout << std::endl; // line 43
}

void my_func_1(double f) {
    (void)f;
    my_func_2();
}

void my_func_1(int i) {
    (void)i;
    my_func_2();
}  // line 54

int main() {
    my_func_1(1);
    my_func_1(2.0);
}

Compile and run:

sudo apt-get install libunwind-dev
g++ -fno-pie -ggdb3 -O0 -no-pie -o unwind.out -std=c++11 \
  -Wall -Wextra -pedantic-errors unwind.cpp -lunwind -pthread
./unwind.out

Output:

0x400c80: (my_func_2()+0x9)
0x400cb7: (my_func_1(int)+0x10)
0x400ccc: (main+0x12)
0x7f4c68926b97: (__libc_start_main+0xe7)
0x400a3a: (_start+0x2a)

0x400c80: (my_func_2()+0x9)
0x400ca4: (my_func_1(double)+0x12)
0x400ce1: (main+0x27)
0x7f4c68926b97: (__libc_start_main+0xe7)
0x400a3a: (_start+0x2a)

and then we can find the lines of my_func_2 and my_func_1(int) with:

addr2line -e unwind.out 0x400c80 0x400cb7

which gives:

/home/ciro/test/unwind.cpp:43
/home/ciro/test/unwind.cpp:54

TODO: why are the lines off by one?

Tested on Ubuntu 18.04, GCC 7.4.0, libunwind 1.2.1.

GDB automation

We can also do this with GDB without recompiling by using: How to do an specific action when a certain breakpoint is hit in GDB?

Although if you are going to print the backtrace a lot, this will likely be less fast than the other options, but maybe we can reach native speeds with compile code, but I'm lazy to test it out now: How to call assembly in gdb?

main.cpp

void my_func_2(void) {}

void my_func_1(double f) {
    my_func_2();
}

void my_func_1(int i) {
    my_func_2();
}

int main() {
    my_func_1(1);
    my_func_1(2.0);
}

main.gdb

start
break my_func_2
commands
  silent
  backtrace
  printf "\n"
  continue
end
continue

Compile and run:

g++ -ggdb3 -o main.out main.cpp
gdb -nh -batch -x main.gdb main.out

Output:

Temporary breakpoint 1 at 0x1158: file main.cpp, line 12.

Temporary breakpoint 1, main () at main.cpp:12
12          my_func_1(1);
Breakpoint 2 at 0x555555555129: file main.cpp, line 1.
#0  my_func_2 () at main.cpp:1
#1  0x0000555555555151 in my_func_1 (i=1) at main.cpp:8
#2  0x0000555555555162 in main () at main.cpp:12

#0  my_func_2 () at main.cpp:1
#1  0x000055555555513e in my_func_1 (f=2) at main.cpp:4
#2  0x000055555555516f in main () at main.cpp:13

[Inferior 1 (process 14193) exited normally]

TODO I wanted to do this with just -ex from the command line to not have to create main.gdb but I couldn't get the commands to work there.

Tested in Ubuntu 19.04, GDB 8.2.

Linux kernel

How to print the current thread stack trace inside the Linux kernel?

libdwfl

This was originally mentioned at: https://stackoverflow.com/a/60713161/895245 and it might be the best method, but I have to benchmark a bit more, but please go upvote that answer.

TODO: I tried to minimize the code in that answer, which was working, to a single function, but it is segfaulting, let me know if anyone can find why.

dwfl.cpp

#include <cassert>
#include <iostream>
#include <memory>
#include <sstream>
#include <string>

#include <cxxabi.h> // __cxa_demangle
#include <elfutils/libdwfl.h> // Dwfl*
#include <execinfo.h> // backtrace
#include <unistd.h> // getpid

// https://stackoverflow.com/questions/281818/unmangling-the-result-of-stdtype-infoname
std::string demangle(const char* name) {
    int status = -4;
    std::unique_ptr<char, void(*)(void*)> res {
        abi::__cxa_demangle(name, NULL, NULL, &status),
        std::free
    };
    return (status==0) ? res.get() : name ;
}

std::string debug_info(Dwfl* dwfl, void* ip) {
    std::string function;
    int line = -1;
    char const* file;
    uintptr_t ip2 = reinterpret_cast<uintptr_t>(ip);
    Dwfl_Module* module = dwfl_addrmodule(dwfl, ip2);
    char const* name = dwfl_module_addrname(module, ip2);
    function = name ? demangle(name) : "<unknown>";
    if (Dwfl_Line* dwfl_line = dwfl_module_getsrc(module, ip2)) {
        Dwarf_Addr addr;
        file = dwfl_lineinfo(dwfl_line, &addr, &line, nullptr, nullptr, nullptr);
    }
    std::stringstream ss;
    ss << ip << ' ' << function;
    if (file)
        ss << " at " << file << ':' << line;
    ss << std::endl;
    return ss.str();
}

std::string stacktrace() {
    // Initialize Dwfl.
    Dwfl* dwfl = nullptr;
    {
        Dwfl_Callbacks callbacks = {};
        char* debuginfo_path = nullptr;
        callbacks.find_elf = dwfl_linux_proc_find_elf;
        callbacks.find_debuginfo = dwfl_standard_find_debuginfo;
        callbacks.debuginfo_path = &debuginfo_path;
        dwfl = dwfl_begin(&callbacks);
        assert(dwfl);
        int r;
        r = dwfl_linux_proc_report(dwfl, getpid());
        assert(!r);
        r = dwfl_report_end(dwfl, nullptr, nullptr);
        assert(!r);
        static_cast<void>(r);
    }

    // Loop over stack frames.
    std::stringstream ss;
    {
        void* stack[512];
        int stack_size = ::backtrace(stack, sizeof stack / sizeof *stack);
        for (int i = 0; i < stack_size; ++i) {
            ss << i << ": ";

            // Works.
            ss << debug_info(dwfl, stack[i]);

#if 0
            // TODO intended to do the same as above, but segfaults,
            // so possibly UB In above function that does not blow up by chance?
            void *ip = stack[i];
            std::string function;
            int line = -1;
            char const* file;
            uintptr_t ip2 = reinterpret_cast<uintptr_t>(ip);
            Dwfl_Module* module = dwfl_addrmodule(dwfl, ip2);
            char const* name = dwfl_module_addrname(module, ip2);
            function = name ? demangle(name) : "<unknown>";
            // TODO if I comment out this line it does not blow up anymore.
            if (Dwfl_Line* dwfl_line = dwfl_module_getsrc(module, ip2)) {
              Dwarf_Addr addr;
              file = dwfl_lineinfo(dwfl_line, &addr, &line, nullptr, nullptr, nullptr);
            }
            ss << ip << ' ' << function;
            if (file)
                ss << " at " << file << ':' << line;
            ss << std::endl;
#endif
        }
    }
    dwfl_end(dwfl);
    return ss.str();
}

void my_func_2() {
    std::cout << stacktrace() << std::endl;
    std::cout.flush();
}

void my_func_1(double f) {
    (void)f;
    my_func_2();
}

void my_func_1(int i) {
    (void)i;
    my_func_2();
}

int main(int argc, char **argv) {
    long long unsigned int n;
    if (argc > 1) {
        n = strtoul(argv[1], NULL, 0);
    } else {
        n = 1;
    }
    for (long long unsigned int i = 0; i < n; ++i) {
        my_func_1(1);
        my_func_1(2.0);
    }
}

Compile and run:

sudo apt install libdw-dev
g++ -fno-pie -ggdb3 -O0 -no-pie -o dwfl.out -std=c++11 -Wall -Wextra -pedantic-errors dwfl.cpp -ldw
./dwfl.out

Output:

0: 0x402b74 stacktrace[abi:cxx11]() at /home/ciro/test/dwfl.cpp:65
1: 0x402ce0 my_func_2() at /home/ciro/test/dwfl.cpp:100
2: 0x402d7d my_func_1(int) at /home/ciro/test/dwfl.cpp:112
3: 0x402de0 main at /home/ciro/test/dwfl.cpp:123
4: 0x7f7efabbe1e3 __libc_start_main at ../csu/libc-start.c:342
5: 0x40253e _start at ../csu/libc-start.c:-1

0: 0x402b74 stacktrace[abi:cxx11]() at /home/ciro/test/dwfl.cpp:65
1: 0x402ce0 my_func_2() at /home/ciro/test/dwfl.cpp:100
2: 0x402d66 my_func_1(double) at /home/ciro/test/dwfl.cpp:107
3: 0x402df1 main at /home/ciro/test/dwfl.cpp:121
4: 0x7f7efabbe1e3 __libc_start_main at ../csu/libc-start.c:342
5: 0x40253e _start at ../csu/libc-start.c:-1

Benchmark run:

g++ -fno-pie -ggdb3 -O3 -no-pie -o dwfl.out -std=c++11 -Wall -Wextra -pedantic-errors dwfl.cpp -ldw
time ./dwfl.out 1000 >/dev/null

Output:

real    0m3.751s
user    0m2.822s
sys     0m0.928s

So we see that this method is 10x faster than Boost's stacktrace, and might therefore be applicable to more use cases.

Tested in Ubuntu 19.10 amd64, libdw-dev 0.176-1.1.

See also

• How can one grab a stack trace in C?
• How to make backtrace()/backtrace_symbols() print the function names?
• Is there a portable/standard-compliant way to get filenames and linenumbers in a stack trace?
• Best way to invoke gdb from inside program to print its stacktrace?
• automatic stack trace on failure:
  • on C++ exception: C++ display stack trace on exception
  • generic: How to automatically generate a stacktrace when my program crashes

.example.com TRUE / FALSE 1560211200 MY_VARIABLE MY_VALUE

The cookies file format apparently consists of a line per cookie and each line consists of the following seven tab-delimited fields:

• domain - The domain that created AND that can read the variable.
• flag - A TRUE/FALSE value indicating if all machines within a given domain can access the variable. This value is set automatically by the browser, depending on the value you set for domain.
• path - The path within the domain that the variable is valid for.
• secure - A TRUE/FALSE value indicating if a secure connection with the domain is needed to access the variable.
• expiration - The UNIX time that the variable will expire on. UNIX time is defined as the number of seconds since Jan 1, 1970 00:00:00 GMT.
• name - The name of the variable.
• value - The value of the variable.

From http://www.cookiecentral.com/faq/#3.5

If myFunc(variable) is executed before textarea is rendered to page, you will get the null exception error.

<html>
    <head>
    <title>index</title>
    <script type="text/javascript">
        function myFunc(variable){
            var s = document.getElementById(variable);
            s.value = "new value";
        }   
        myFunc("id1");
    </script>
    </head>
    <body>
        <textarea id="id1"></textarea>
    </body>
</html>
//Error message: Cannot set property 'value' of null 

So, make sure your textarea does exist in the page, and then call myFunc, you can use window.onload or $(document).ready function. Hope it's helpful.

I can speak from first hand experience that it is often a good idea to place the web server and database on different machines. If you have an application that is resource intensive, it can easily cause the CPU cycles on the machine to peak, essentially bringing the machine to a halt. However, if your application has limited use of the database, it would probably be no big deal to have them share a server.

In the words of Knuth, "premature optimization is the root of all evil!" The small defference either way will most likely not have much of an effect in the end; I'd choose the more readable one.

Here' an alternative

In Xcode 4 short cut to display and hide console is (command-shift-Y) , this will show the console and debugger below ur text edior in the same window.

How about:

<asp:HtmlIframe ID="yourIframe" runat="server" />

Is supported since .Net Framework 4.5

If you have Problems using this control, you might take a look here.

ord() will not work because your end string is two characters long.

Returns the ASCII value of the first character of string.

Watch it break.

From my testing, you need to check that the end string doesn't get "stepped over". The perl-style character incrementation is a cool method, but it is a single-stepping method. For this reason, an inner loop helps it along when necessary. This is actually not a bother, in fact, it is useful because we need to check if the loop(s) should be broken on each single step.

Code: (Demo)

function excelCols($letter,$end,$step=1){  // function doesn't check that $end is "later" than $letter
    if($step==0)return [];  // prevent infinite loop
    do{
        $letters[]=$letter;  // store letter
        for($x=0; $x<$step; ++$x){  // increment in accordance with $step declaration
            if($letter===$end)break(2);  // break if end is "stepped on"
            ++$letter;
        }
    }while(true);
    return $letters;    
}
echo implode(' ',excelCols('A','JJ',4));
echo "\n --- \n";
echo implode(' ',excelCols('A','BB',3));
echo "\n --- \n";
echo implode(' ',excelCols('A','ZZ',1));
echo "\n --- \n";
echo implode(' ',excelCols('A','ZZ',3));

Output:

A E I M Q U Y AC AG AK AO AS AW BA BE BI BM BQ BU BY CC CG CK CO CS CW DA DE DI DM DQ DU DY EC EG EK EO ES EW FA FE FI FM FQ FU FY GC GG GK GO GS GW HA HE HI HM HQ HU HY IC IG IK IO IS IW JA JE JI
 --- 
A D G J M P S V Y AB AE AH AK AN AQ AT AW AZ
 --- 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DY DZ EA EB EC ED EE EF EG EH EI EJ EK EL EM EN EO EP EQ ER ES ET EU EV EW EX EY EZ FA FB FC FD FE FF FG FH FI FJ FK FL FM FN FO FP FQ FR FS FT FU FV FW FX FY FZ GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GY GZ HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ IA IB IC ID IE IF IG IH II IJ IK IL IM IN IO IP IQ IR IS IT IU IV IW IX IY IZ JA JB JC JD JE JF JG JH JI JJ JK JL JM JN JO JP JQ JR JS JT JU JV JW JX JY JZ KA KB KC KD KE KF KG KH KI KJ KK KL KM KN KO KP KQ KR KS KT KU KV KW KX KY KZ LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NW NX NY NZ OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OO OP OQ OR OS OT OU OV OW OX OY OZ PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ QA QB QC QD QE QF QG QH QI QJ QK QL QM QN QO QP QQ QR QS QT QU QV QW QX QY QZ RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UO UP UQ UR US UT UU UV UW UX UY UZ VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WQ WR WS WT WU WV WW WX WY WZ XA XB XC XD XE XF XG XH XI XJ XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ YA YB YC YD YE YF YG YH YI YJ YK YL YM YN YO YP YQ YR YS YT YU YV YW YX YY YZ ZA ZB ZC ZD ZE ZF ZG ZH ZI ZJ ZK ZL ZM ZN ZO ZP ZQ ZR ZS ZT ZU ZV ZW ZX ZY ZZ
 --- 
A D G J M P S V Y AB AE AH AK AN AQ AT AW AZ BC BF BI BL BO BR BU BX CA CD CG CJ CM CP CS CV CY DB DE DH DK DN DQ DT DW DZ EC EF EI EL EO ER EU EX FA FD FG FJ FM FP FS FV FY GB GE GH GK GN GQ GT GW GZ HC HF HI HL HO HR HU HX IA ID IG IJ IM IP IS IV IY JB JE JH JK JN JQ JT JW JZ KC KF KI KL KO KR KU KX LA LD LG LJ LM LP LS LV LY MB ME MH MK MN MQ MT MW MZ NC NF NI NL NO NR NU NX OA OD OG OJ OM OP OS OV OY PB PE PH PK PN PQ PT PW PZ QC QF QI QL QO QR QU QX RA RD RG RJ RM RP RS RV RY SB SE SH SK SN SQ ST SW SZ TC TF TI TL TO TR TU TX UA UD UG UJ UM UP US UV UY VB VE VH VK VN VQ VT VW VZ WC WF WI WL WO WR WU WX XA XD XG XJ XM XP XS XV XY YB YE YH YK YN YQ YT YW YZ ZC ZF ZI ZL ZO ZR ZU ZX

Here is an array-functions approach:

Code: (Demo)

$start='C';
$end='DD';
$step=4;

// generate and store more than we need (this is an obvious method disadvantage)
$result=$array=range('A','Z',1);  // store A - Z as $array and $result
foreach($array as $a){
    foreach($array as $b){
        $result[]="$a$b";  // store double letter combinations
        if(in_array($end,$result)){break(2);}  // stop asap
    }
}
//echo implode(' ',$result),"\n\n";

// slice away from the front of the array
$result=array_slice($result,array_search($start,$result));  // reindex keys
//echo implode(' ',$result),"\n\n";

 // punch out elements that are not "stepped on"
$result=array_filter($result,function($k)use($step){return $k%$step==0;},ARRAY_FILTER_USE_KEY); // use modulo

// result is ready
echo implode(' ',$result);

Output:

C G K O S W AA AE AI AM AQ AU AY BC BG BK BO BS BW CA CE CI CM CQ CU CY DC

    $scope.toggleRightDelayed = function(){
        var myInterval = $interval(function(){
            $scope.toggleRight();
        },1000,1)
        .then(function(){
            $interval.cancel(myInterval);
        });
    };

use cv::mat::setto

img.setTo(cv::Scalar(redVal,greenVal,blueVal))

This happened to me because I put a variable in the regex and sometimes its string value included a slash. Solution: preg_quote.

Pattern p = Pattern.compile("(\\D+)(\\d+)(.*)");
Matcher m = p.matcher("this is your number:1234 thank you");
if (m.find()) {
    String someNumberStr = m.group(2);
    int someNumberInt = Integer.parseInt(someNumberStr);
}

Scott Meyers gives a nice example:

class GameCharacter;
int defaultHealthCalc(const GameCharacter& gc);

class GameCharacter
{
public:
  typedef std::function<int (const GameCharacter&)> HealthCalcFunc;

  explicit GameCharacter(HealthCalcFunc hcf = defaultHealthCalc)
  : healthFunc(hcf)
  { }

  int healthValue() const { return healthFunc(*this); }

private:
  HealthCalcFunc healthFunc;
};

I think the example says it all.

std::function<> is the "modern" way of writing C++ callbacks.

I don't think this question has been completely answered yet because all of the answers only give single match examples. The OP's question demonstrates the nuances of having 2 matches as well as a substring match which should not be reported because it is not a word/token.

To match multiple occurrences, one might do something like this:

iter = re.finditer(r"\bis\b", String)
indices = [m.start(0) for m in iter]

This would return a list of the two indices for the original string.

In my understanding, Get-Content eliminates ALL newlines/carriage returns when it rolls your text file through the pipeline. To do multiline regexes, you have to re-combine your string array into one giant string. I do something like:

$text = [string]::Join("`n", (Get-Content test.txt))
[regex]::Replace($text, "t`n", "ting`na ", "Singleline")

Clarification: small files only folks! Please don't try this on your 40 GB log file :)

Refer the react-native official documentation on Generating Signed APK

React-Native Generating Signed APK

that is referring to the expected dtype of your image
"image".astype('float32') should solve your issue

According: w3schools.com

An element with position: absolute; is positioned relative to the nearest positioned ancestor (instead of positioned relative to the viewport, like fixed).

So you need to position the parent element with something either relative or absolute, etc and position the desired element to absolute and latter set bottom to 0.

You can try with this code

Image.Save("myfile.png", ImageFormat.Png)

Link : http://msdn.microsoft.com/en-us/library/ms142147.aspx

I found another case where jquery gives you status code 0 -- if for some reason XMLHttpRequest is not defined, you'll get this error.

Obviously this won't normally happen on the web, but a bug in a nightly firefox build caused this to crop up in an add-on I was writing. :)

You should use contains not matches

if(nom.contains("."))
    System.out.println("OK");
else
    System.out.println("Bad");

You can connect two iPhones and transfer data via Bluetooth using either the high-level GameKit framework or the lower-level (but still easy to work with) Bonjour discovery mechanisms. Bonjour also works transparently between Bluetooth and WiFi on the iPhone under 3.0, so it's a good choice if you would like to support iPhone-to-iPhone data transfers on those two types of networks.

For more information, you can also look at the responses to these questions:

• "where can I find iphone sdk 3.0 GameKit tutorials for developing P2P applications?"
• "iPhone to iPhone networking"
• "GameKit in iPhone SDK 3.0"
• "Is iPhone bluetooth function limited in OS 3.0?"

It depends on either the configuration or programmatic change.
Therefore the most reliable way to check the current value is at runtime via code.

See the HttpSessionState.Timeout property; default value is 20 minutes.

You can access this propery in ASP.NET via HttpContext:

this.HttpContext.Session.Timeout // ASP.NET MVC controller
Page.Session.Timeout // ASP.NET Web Forms code-behind
HttpContext.Current.Session.Timeout // Elsewhere

Is the name of your service class really IService (on the Service namespace)? What you probably had originally was a mismatch in the name of the service class in the name attribute of the <service> element.

It will overflow and wrap around to Long.MIN_VALUE.

Its not too likely though. Even if you increment 1,000,000 times per second it will take about 300,000 years to overflow.

You can use set with the /p argument:

SET /P variable=[promptString]

The /P switch allows you to set the value of a variable to a line of input entered by the user. Displays the specified promptString before reading the line of input. The promptString can be empty.

So, simply use something like

set /p Input=Enter some text: 

Later you can use that variable as argument to a command:

myCommand %Input%

Be careful though, that if your input might contain spaces it's probably a good idea to quote it:

myCommand "%Input%"

do like

<input name="name" id="name" type="text" value="Name" 
   onblur="fillField(this,'Name');" onfocus="clearField(this,'Name');"/>

and js

function fillField(input,val) {
      if(input.value == "")
         input.value=val;
};

function clearField(input,val) {
      if(input.value == val)
         input.value="";
};

update

here is a demo fiddle of the same

Some OS-specific interfaces:

• Mac OS X: _NSGetExecutablePath() (man 3 dyld)
• Linux: readlink /proc/self/exe
• Solaris: getexecname()
• FreeBSD: sysctl CTL_KERN KERN_PROC KERN_PROC_PATHNAME -1
• FreeBSD if it has procfs: readlink /proc/curproc/file (FreeBSD doesn't have procfs by default)
• NetBSD: readlink /proc/curproc/exe
• DragonFly BSD: readlink /proc/curproc/file
• Windows: GetModuleFileName() with hModule = NULL

There are also third party libraries that can be used to get this information, such as whereami as mentioned in prideout's answer, or if you are using Qt, QCoreApplication::applicationFilePath() as mentioned in the comments.

The portable (but less reliable) method is to use argv[0]. Although it could be set to anything by the calling program, by convention it is set to either a path name of the executable or a name that was found using $PATH.

Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable before it is executed. In that case you can use getenv("_") to get it. However this is unreliable because not all shells do this, and it could be set to anything or be left over from a parent process which did not change it before executing your program.

Adding to what @KyleMit said, consider using:

• col-md-* classes for the larger outer columns
• col-xs-* classes for the smaller inner columns

This will be useful when you view the page on different screen sizes.

On a small screen, the wrapping of larger outer columns will then happen while maintaining the smaller inner columns, if possible

I am using Windows 10 as my development platform, accessing 10.0.2.2:port in my emulator is not working as expected, and the same result for other solutions in this question as well.

After several hours of digging, I found that if you add -writable-system argument to the emulator startup command, things will just work.

You have to start an emulator via command line like below:

 emulator.exe -avd <emulator_name> -writable-system

Then in your emulator, you can access your API service running on host machine, using LAN IP address and binding port:

http://192.168.1.2:<port>

Hope this helps you out.

About start emulator from command line: https://developer.android.com/studio/run/emulator-commandline.

Weston Ruther built a similar thing using the WebKit proposal for css transitions:

http://weston.ruter.net/projects/jquery-css-transitions/

This implementation might be useful for you.

My problem was with Google Chrome cache. I tested this by running my web application on Firefox and I didn't got that error there. So then I decided trying emptying cache of Google Chrome and it worked.

Just wanted to mention that a good explanation and explicit solution can be found in the Numeric Recipes series. I've got the 3rd edition and the answer is on page 1117, section 21.4. Another solution with a different nomenclature can be found in a paper by Marina Gavrilova Reliable Line Section Intersection Testing. Her solution is, to my mind, a little simpler.

My implementation is below:

bool NuGeometry::IsBetween(const double& x0, const double& x, const double& x1){
   return (x >= x0) && (x <= x1);
}

bool NuGeometry::FindIntersection(const double& x0, const double& y0, 
     const double& x1, const double& y1,
     const double& a0, const double& b0, 
     const double& a1, const double& b1, 
     double& xy, double& ab) {
   // four endpoints are x0, y0 & x1,y1 & a0,b0 & a1,b1
   // returned values xy and ab are the fractional distance along xy and ab
   // and are only defined when the result is true

   bool partial = false;
   double denom = (b0 - b1) * (x0 - x1) - (y0 - y1) * (a0 - a1);
   if (denom == 0) {
      xy = -1;
      ab = -1;
   } else {
      xy = (a0 * (y1 - b1) + a1 * (b0 - y1) + x1 * (b1 - b0)) / denom;
      partial = NuGeometry::IsBetween(0, xy, 1);
      if (partial) {
         // no point calculating this unless xy is between 0 & 1
         ab = (y1 * (x0 - a1) + b1 * (x1 - x0) + y0 * (a1 - x1)) / denom; 
      }
   }
   if ( partial && NuGeometry::IsBetween(0, ab, 1)) {
      ab = 1-ab;
      xy = 1-xy;
      return true;
   }  else return false;
}

In visual studio code i found that simple regex as ^ worked.

You can also customize the card theme globally with ThemeData.cardTheme:

MaterialApp(
  title: 'savvy',
  theme: ThemeData(
    cardTheme: CardTheme(
      shape: RoundedRectangleBorder(
        borderRadius: const BorderRadius.all(
          Radius.circular(8.0),
        ),
      ),
    ),
    // ...

Try

<IfModule mod_rewrite.so>
...
...
...
</IfModule>

instead of <IfModule mod_rewrite.c>

If you want device ID information use TelephonyManager. Here is the link for that :

http://facinatingandroid.blogspot.in/2011/09/android-device-information.html

and also check this :

http://sree.cc/google/android/reading-phone-device-details-in-android

There is no way other than for ... in. If you don't want to use that (parhaps because it's marginally inefficient to have to test hasOwnProperty on each iteration?) then use a different construct, e.g. an array of kvp's:

[{ key: 'key', value: 'value'}, ...]

Answers above describe well why and how it is used on twitter and facebook, what I missed is explanation what # does by default...

On a 'normal' (not a single page application) you can do anchoring with hash to any element that has id by placing that elements id in url after hash #

Example:

(on Chrome) Click F12 or Rihgt Mouse and Inspect element

then take id="answer-10831233" and add to url like following

https://stackoverflow.com/questions/3009380/whats-the-shebang-hashbang-in-facebook-and-new-twitter-urls-for#answer-10831233

and you will get a link that jumps to that element on the page

What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?

By using # in a way described in the answers above you are introducing conflicting behaviour... although I wouldn't loose sleep over it... since Angular it became somewhat of a standard....

No JavaScript needed if you use a button instead:

<form action="your_url" method="post">
    <button type="submit" name="your_name" value="your_value" class="btn-link">Go</button>
</form>

You can style a button to look like a link, for example:

.btn-link {
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    color: #0000EE;
    padding: 0;
    text-decoration: underline;
    font-family: inherit;
    font-size: inherit;
}

I had this problem with an F# project that had been here and there between Visual Studio and MonoDevelop, perhaps originating in the latter (I forget). In VS, the optimize box was unchecked, yet optimization certainly seemed to be occuring as far as the debugger was concerned.

After comparing the XML of the project file against that of a healthy one, the problem was obvious: the healthy project had an explicit <optimize>false</optimize> line, whereas the bad one was missing it completely. VS was obviously inferring from its absence that optimization was disabled, while the compiler was doing the opposite.

The solution was to add this property to the project file, and reload.

since your over div doesn't have a positioning, the z-index doesn't know where and how to position it (and with respect to what?). Just change your over div's position to relative, so there is no side effects on that div and then the under div will obey to your will.

here is your example on jsfiddle: Fiddle

edit: I see someone already mentioned this answer!

Using document.body.innerHTML = ''; does work! Just saying, if using HTML (DOM or on function) you can use
document.writeln(''); but only onClick or onDoubleClick :)

yum install nmap-ncat.x86_64

resolved my problem

Try ps -ef. man ps will give you all the options.

 -A      Display information about other users' processes, including those without controlling terminals.

 -e      Identical to -A.

 -f      Display the uid, pid, parent pid, recent CPU usage, process start time, controlling tty, elapsed CPU usage, and the associated command.  If the -u option is also used, display
         the user name rather then the numeric uid.  When -o or -O is used to add to the display following -f, the command field is not truncated as severely as it is in other formats.

In conjunction with strange SurfaceView lifecycle behaviour with the Camera. I have found that recreate() does not behave well with the lifecycle of SurfaceViews. surfaceDestroyed isn't ever called during the recreation cycle. It is called after onResume (strange), at which point my SurfaceView is destroyed.

The original way of recreating an activity works fine.

Intent intent = getIntent();
finish();
startActivity(intent);

I can't figure out exactly why this is, but it is just an observation that can hopefully guide others in the future because it fixed my problems i was having with SurfaceViews

You can update a metadata annotation that is not relevant for your deployment. it will trigger a rolling-update

for example:

    spec:
      template:
        metadata:
          annotations:
            configmap-version: 1

PHP also has money_format().

Here's an example:

echo money_format('$%i', 3.4); // echos '$3.40'

This function actually has tons of options, go to the documentation I linked to to see them.

Note: money_format is undefined in Windows.

UPDATE: Via the PHP manual: https://www.php.net/manual/en/function.money-format.php

WARNING: This function [money_format] has been DEPRECATED as of PHP 7.4.0. Relying on this function is highly discouraged.

Instead, look into NumberFormatter::formatCurrency.

    $number = "123.45";
    $formatter = new NumberFormatter('en_US', NumberFormatter::CURRENCY);
    return $formatter->formatCurrency($number, 'USD');

When you say

(a['x']==1) and (a['y']==10)

You are implicitly asking Python to convert (a['x']==1) and (a['y']==10) to boolean values.

NumPy arrays (of length greater than 1) and Pandas objects such as Series do not have a boolean value -- in other words, they raise

ValueError: The truth value of an array is ambiguous. Use a.empty, a.any() or a.all().

when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume they are True if they have non-zero length, like a Python list. Others might desire for it to be True only if all its elements are True. Others might want it to be True if any of its elements are True.

Because there are so many conflicting expectations, the designers of NumPy and Pandas refuse to guess, and instead raise a ValueError.

Instead, you must be explicit, by calling the empty(), all() or any() method to indicate which behavior you desire.

In this case, however, it looks like you do not want boolean evaluation, you want element-wise logical-and. That is what the & binary operator performs:

(a['x']==1) & (a['y']==10)

returns a boolean array.

By the way, as alexpmil notes, the parentheses are mandatory since & has a higher operator precedence than ==. Without the parentheses, a['x']==1 & a['y']==10 would be evaluated as a['x'] == (1 & a['y']) == 10 which would in turn be equivalent to the chained comparison (a['x'] == (1 & a['y'])) and ((1 & a['y']) == 10). That is an expression of the form Series and Series. The use of and with two Series would again trigger the same ValueError as above. That's why the parentheses are mandatory.

Since event.keyCode is deprecated, I found the event.key useful in javascript. Below is an example for getting the names of the keyboard keys pressed (using an input element). They are given as a KeyboardEvent key text property:

function setMyKeyDownListener() {_x000D_
    window.addEventListener(_x000D_
      "keydown",_x000D_
      function(event) {MyFunction(event.key)}_x000D_
    )_x000D_
}_x000D_
_x000D_
function MyFunction (the_Key) {_x000D_
    alert("Key pressed is: "+the_Key);_x000D_
}

html { font-size: 4vw; background-color: green; color: white; padding: 1em; }

<body onload="setMyKeyDownListener()">_x000D_
    <div>_x000D_
        <input id="MyInputId">_x000D_
    </div>_x000D_
</body>_x000D_
</html>

Quick answer without seeing examples of your current HTML and CSS is to use z-index

css:

#div1 {
position: relative;
z-index: 1;
}

#div2 {
position: relative;
z-index: 2;
}

Where div2 is the overlay

Download codeblocks-13.12mingw-setup.exe instead of codeblocks-13.12setup.exe from the official site. Here 13.12 is the latest version so far.

Here's what I came up with, and it's working for me. I added the following method(s) to my controller base class. (You can always make these static methods somewhere else that accept a controller as a parameter I suppose)

MVC2 .ascx style

protected string RenderViewToString<T>(string viewPath, T model) {
  ViewData.Model = model;
  using (var writer = new StringWriter()) {
    var view = new WebFormView(ControllerContext, viewPath);
    var vdd = new ViewDataDictionary<T>(model);
    var viewCxt = new ViewContext(ControllerContext, view, vdd,
                                new TempDataDictionary(), writer);
    viewCxt.View.Render(viewCxt, writer);
    return writer.ToString();
  }
}

Razor .cshtml style

public string RenderRazorViewToString(string viewName, object model)
{
  ViewData.Model = model;
  using (var sw = new StringWriter())
  {
    var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext,
                                                             viewName);
    var viewContext = new ViewContext(ControllerContext, viewResult.View,
                                 ViewData, TempData, sw);
    viewResult.View.Render(viewContext, sw);
    viewResult.ViewEngine.ReleaseView(ControllerContext, viewResult.View);
    return sw.GetStringBuilder().ToString();
  }
}

Edit: added Razor code.

You can add it like this

header('Location: http://linkhere.com/'.$url_endpoint);

If your base query is expected to return only one row, then you could use this trick:

select NVL( MIN(rate), 0 ) AS rate 
from d_payment_index
where fy = 2007
  and payment_year = 2008
  and program_id = 18

(Oracle code, not sure if NVL is the right function for SQL Server.)

Assuming they are all defined in the same assembly, you can do:

IEnumerable<AbstractDataExport> exporters = typeof(AbstractDataExport)
    .Assembly.GetTypes()
    .Where(t => t.IsSubclassOf(typeof(AbstractDataExport)) && !t.IsAbstract)
    .Select(t => (AbstractDataExport)Activator.CreateInstance(t));

You can use apply for this, and it's a bit neater:

import numpy as np
import pandas as pd

np.random.seed(1)

df = pd.DataFrame(np.random.randn(4,4)* 4 + 3)

          0         1         2         3
0  9.497381  0.552974  0.887313 -1.291874
1  6.461631 -6.206155  9.979247 -0.044828
2  4.276156  2.002518  8.848432 -5.240563
3  1.710331  1.463783  7.535078 -1.399565

df.apply(lambda x: (x - np.mean(x)) / (np.max(x) - np.min(x)))

          0         1         2         3
0  0.515087  0.133967 -0.651699  0.135175
1  0.125241 -0.689446  0.348301  0.375188
2 -0.155414  0.310554  0.223925 -0.624812
3 -0.484913  0.244924  0.079473  0.114448

Also, it works nicely with groupby, if you select the relevant columns:

df['grp'] = ['A', 'A', 'B', 'B']

          0         1         2         3 grp
0  9.497381  0.552974  0.887313 -1.291874   A
1  6.461631 -6.206155  9.979247 -0.044828   A
2  4.276156  2.002518  8.848432 -5.240563   B
3  1.710331  1.463783  7.535078 -1.399565   B


df.groupby(['grp'])[[0,1,2,3]].apply(lambda x: (x - np.mean(x)) / (np.max(x) - np.min(x)))

     0    1    2    3
0  0.5  0.5 -0.5 -0.5
1 -0.5 -0.5  0.5  0.5
2  0.5  0.5  0.5 -0.5
3 -0.5 -0.5 -0.5  0.5

Though this post has been here for quite a while, the solutions are not pure JS. Though Jason noted that requesting permissions is not ideal, I consider it a good thing since the user can reject it explicitly. I still post this code, though (almost) the same thing can also be seen in another post by ifaour. Consider this the JS only version without too much attention to detail.

The basic code is rather simple:

FB.api("me/likes/SOME_ID", function(response) {
    if ( response.data.length === 1 ) { //there should only be a single value inside "data"
        console.log('You like it');
    } else {
        console.log("You don't like it");
    }
});

ALternatively, replace me with the proper UserID of someone else (you might need to alter the permissions below to do this, like friends_likes) As noted, you need more than the basic permission:

FB.login(function(response) {
    //do whatever you need to do after a (un)successfull login         
}, { scope: 'user_likes' });

HTML Markup

<select id="select">
  <option value="1" data-foo="dogs">this</option>
  <option value="2" data-foo="cats">that</option>
  <option value="3" data-foo="gerbils">other</option>
</select>

Code

// JavaScript using jQuery
$(function(){
    $('select').change(function(){
       var selected = $(this).find('option:selected');
       var extra = selected.data('foo'); 
       ...
    });
});

// Plain old JavaScript
var sel = document.getElementById('select');
var selected = sel.options[sel.selectedIndex];
var extra = selected.getAttribute('data-foo');

See this as a working sample using jQuery here: http://jsfiddle.net/GsdCj/1/
See this as a working sample using plain JavaScript here: http://jsfiddle.net/GsdCj/2/

By using data attributes from HTML5 you can add extra data to elements in a syntactically-valid manner that is also easily accessible from jQuery.

Easy way to remove public from laravel 5 url. You just need to cut index.php and .htaccess from public directory and paste it in the root directory,thats all and replace two lines in index.php as

require __DIR__.'/bootstrap/autoload.php';
$app = require_once __DIR__.'/bootstrap/app.php';

Note: The above method is just for the beginners as they might be facing problem in setting up virtual host and The best solution is to setup virtual host on local machine and point it to the public directory of the project.

I had the same problem and found out Folding can be enabled or disabled, and in my case got disabled somehow.

To solve it, simply right click on the line numbers/breakpoint section (vertical bar in the left of the editor), then under the 'Folding' section chose 'Enable folding'.

ctrlshift/ should be working fine after.

I am behind a corporate proxy, so I usually use an intermediate proxy to enable NTLM authentication.

I had hangs problem with npm install when using CNTLM proxy. With NTLM-APS (a similar proxy) the hangs were gone.

I know this is old, but it is actually very possible.

• Go to your WinSCP profile (Session > Sites > Site Manager)

• Click on Edit > Advanced... > Environment > SFTP

• Insert sudo su -c /usr/lib/sftp-server in "SFTP Server" (note this path might be different in your system)

• Save and connect

Source

AWS Ubuntu 18.04:

Pseudocode:

count = 0
For each character c in string s
  Check if c equals '_'
    If yes, increase count

EDIT: C++ example code:

int count_underscores(string s) {
  int count = 0;

  for (int i = 0; i < s.size(); i++)
    if (s[i] == '_') count++;

  return count;
}

Note that this is code to use together with std::string, if you're using char*, replace s.size() with strlen(s).

Also note: I can understand you want something "as small as possible", but I'd suggest you to use this solution instead. As you see you can use a function to encapsulate the code for you so you won't have to write out the for loop everytime, but can just use count_underscores("my_string_") in the rest of your code. Using advanced C++ algorithms is certainly possible here, but I think it's overkill.

Don't live fanatically with the conventions that SUN have med up, do whats feel right to you and your team.

For example this is how eclipse do it, breaking the convention. Try adding implements Serializable and eclipse will ask to generate this line for you.

Update: There were special cases that was excluded didn't know that. I however withholds to do what you and your team seems fit.

the easy way use this in button :

 var table = $('#example1').DataTable();
 table.row($(`#yesmediasec-${id}`).closest('tr')).remove( ).draw();

example1 = id table . yesmediasec = id of the button in the row

use it and every thing will be ok

This is the VB.net version which works fine for me ported from the C code in BlaM's post.

There's a C implementation here:

http://www.cs.rit.edu/~ncs/color/t_convert.html

Should be very straightforward to convert to C#, as almost no functions are called - just > calculations.

Public Sub HSVtoRGB(ByRef r As Double, ByRef g As Double, ByRef b As Double, ByVal h As Double, ByVal s As Double, ByVal v As Double)
    Dim i As Integer
    Dim f, p, q, t As Double

    If (s = 0) Then
        ' achromatic (grey)
        r = v
        g = v
        b = v
        Exit Sub
    End If

    h /= 60 'sector 0 to 5
    i = Math.Floor(h)
    f = h - i 'factorial part of h
    p = v * (1 - s)
    q = v * (1 - s * f)
    t = v * (1 - s * (1 - f))

    Select Case (i)
        Case 0
            r = v
            g = t
            b = p
            Exit Select
        Case 1
            r = q
            g = v
            b = p
            Exit Select
        Case 2
            r = p
            g = v
            b = t
            Exit Select
        Case 3
            r = p
            g = q
            b = v
            Exit Select
        Case 4
            r = t
            g = p
            b = v
            Exit Select
        Case Else   'case 5:
            r = v
            g = p
            b = q
            Exit Select
    End Select
End Sub

You can use this format as of 4/6/2017.

https://docs.google.com/viewerng/viewer?url=http://yourfile.pdf

Just replace http://yourfile.pdf with the link you use.

Single File/Folder using pull:

adb pull "/sdcard/Folder1"

Output:

adb pull "/sdcard/Folder1"
pull: building file list...
pull: /sdcard/Folder1/image1.jpg -> ./image1.jpg
pull: /sdcard/Folder1/image2.jpg -> ./image2.jpg
pull: /sdcard/Folder1/image3.jpg -> ./image3.jpg
3 files pulled. 0 files skipped.

Specific Files/Folders using find from BusyBox:

adb shell find "/sdcard/Folder1" -iname "*.jpg" | tr -d '\015' | while read line; do adb pull "$line"; done;

Here is an explanation:

adb shell find "/sdcard/Folder1" - use the find command, use the top folder
-iname "*.jpg"                   - filter the output to only *.jpg files
|                                - passes data(output) from one command to another
tr -d '\015'                     - explained here: http://stackoverflow.com/questions/9664086/bash-is-removing-commands-in-while
while read line;                 - while loop to read input of previous commands
do adb pull "$line"; done;         - pull the files into the current running directory, finish. The quotation marks around $line are required to work with filenames containing spaces.

The scripts will start in the top folder and recursively go down and find all the "*.jpg" files and pull them from your phone to the current directory.

I made a function which handles arrays as well as single GET or POST values

function subVal($varName, $default=NULL,$isArray=FALSE ){ // $isArray toggles between (multi)array or single mode

    $retVal = "";
    $retArray = array();

    if($isArray) {
        if(isset($_POST[$varName])) {
            foreach ( $_POST[$varName] as $var ) {  // multidimensional POST array elements
                $retArray[]=$var;
            }
        }
        $retVal=$retArray;
    }

    elseif (isset($_POST[$varName]) )  {  // simple POST array element
        $retVal = $_POST[$varName];
    }

    else {
        if (isset($_GET[$varName]) ) {
            $retVal = $_GET[$varName];    // simple GET array element
        }
        else {
            $retVal = $default;
        }
    }

    return $retVal;

}

Examples:

$curr_topdiameter = subVal("topdiameter","",TRUE)[3];
$user_name = subVal("user_name","");

This is basically Muhammad Saqib's answer except two diffs:

1: Adds width and height function parameters.

2: This is a small nuance which can be ignored... Saying 'As Bitmap', instead of 'As Image'. 'As Image' does work just fine. I just prefer to match Return types. See Image VS Bitmap Class.

Public Shared Function ResizeImage(ByVal InputBitmap As Bitmap, width As Integer, height As Integer) As Bitmap
    Return New Bitmap(InputImage, New Size(width, height))
End Function

Ex.

Dim someimage As New Bitmap("C:\somefile")
someimage = ResizeImage(someimage,800,600)

WordPress overrides PHP's memory limit to 256M, with the assumption that whatever it was set to before is going to be too low to render the dashboard. You can override this by defining WP_MAX_MEMORY_LIMIT in wp-config.php:

define( 'WP_MAX_MEMORY_LIMIT' , '512M' );

I agree with DanFromGermany, 256M is really a lot of memory for rendering a dashboard page. Changing the memory limit is really putting a bandage on the problem.

The documentation is here: http://docs.jquery.com/Ajax/jQuery.ajax

But, to summarize, the ajax call takes a bunch of options. the ones you are looking for are error and success.

You would call it like this:

$.ajax({
  url: 'mypage.html',
  success: function(){
    alert('success');
  },
  error: function(){
    alert('failure');
  }
});

I have shown the success and error function taking no arguments, but they can receive arguments.

The error function can take three arguments: XMLHttpRequest, textStatus, and errorThrown.

The success function can take two arguments: data and textStatus. The page you requested will be in the data argument.

None of these worked for me. I did find the solution in another stackoverflow question. I'll add it here for easy reference:

You need to make a reference, so it will be copied in den application path. Because later it will be referenced in runtime. So you don't need to copy any files.

private volatile Type _dependency;

public MyClass()
{
    _dependency = typeof(System.Data.Entity.SqlServer.SqlProviderServices);
}

After much digging around we were able to scrape the info more or less (mainly from Keycloak's own JS client lib):

• Authorization Endpoint: /auth/realms/{realm}/tokens/login
• Token Endpoint: /auth/realms/{realm}/tokens/access/codes

As for OpenID Connect UserInfo, right now (1.1.0.Final) Keycloak doesn't implement this endpoint, so it is not fully OpenID Connect compliant. However, there is already a patch that adds that as of this writing should be included in 1.2.x.

But - Ironically Keycloak does send back an id_token in together with the access token. Both the id_token and the access_token are signed JWTs, and the keys of the token are OpenID Connect's keys, i.e:

"iss":  "{realm}"
"sub":  "5bf30443-0cf7-4d31-b204-efd11a432659"
"name": "Amir Abiri"
"email: "..."

So while Keycloak 1.1.x is not fully OpenID Connect compliant, it does "speak" in OpenID Connect language.

The second answer (at the time of writing) gives :

var values = keys.map(function(v) { return myHash[v]; });

But I prefer using jQuery's own $.map :

var values = $.map(myHash, function(v) { return v; });

Since jQuery takes care of cross-browser compatibility. Plus it's shorter :)

At any rate, I always try to be as functional as possible. One-liners are nicers than loops.

You can use:

  <script type="text/javascript">
     Window.body.style.backgroundColor = "#5a5a5a";
  </script>

\d matches any single digit in most regex grammar styles, including python. Regex Reference

Every SQL batch has to fit in the Batch Size Limit: 65,536 * Network Packet Size.

Other than that, your query is limited by runtime conditions. It will usually run out of stack size because x IN (a,b,c) is nothing but x=a OR x=b OR x=c which creates an expression tree similar to x=a OR (x=b OR (x=c)), so it gets very deep with a large number of OR. SQL 7 would hit a SO at about 10k values in the IN, but nowdays stacks are much deeper (because of x64), so it can go pretty deep.

Update

You already found Erland's article on the topic of passing lists/arrays to SQL Server. With SQL 2008 you also have Table Valued Parameters which allow you to pass an entire DataTable as a single table type parameter and join on it.

XML and XPath is another viable solution:

SELECT ...
FROM Table
JOIN (
   SELECT x.value(N'.',N'uniqueidentifier') as guid
   FROM @values.nodes(N'/guids/guid') t(x)) as guids
 ON Table.guid = guids.guid;

If this is an 8-bytes numeric value, you can try:

BigInteger n = new BigInteger(byteArray);

If this is an UTF-8 character buffer, then you can try:

BigInteger n = new BigInteger(new String(byteArray, "UTF-8"));

The differences between an Abstract Class and an Interface:

Abstract Classes

An abstract class can provide some functionality and leave the rest for derived class.

• The derived class may or may not override the concrete functions defined in the base class.

• A child class extended from an abstract class should logically be related.

Interface

An interface cannot contain any functionality. It only contains definitions of the methods.

• The derived class MUST provide code for all the methods defined in the interface.

• Completely different and non-related classes can be logically grouped together using an interface.

This is a very simple solution to print out a tree. It is not that pretty, but it is really simple:

enum { kWidth = 6 };
void PrintSpace(int n)
{
  for (int i = 0; i < n; ++i)
    printf(" ");
}

void PrintTree(struct Node * root, int level)
{
  if (!root) return;
  PrintTree(root->right, level + 1);
  PrintSpace(level * kWidth);
  printf("%d", root->data);
  PrintTree(root->left, level + 1);
}

Sample output:

      106
            105
104
            103
                  102
                        101
      100

Do not forget to verify if your text editor encodes properly your code in UTF-8.

Otherwise, you may have invisible characters that are not interpreted as UTF-8.

Here is an applet where you can exercise some bit-operations, including shifting.

You have a collection of bits, and you move some of them beyond their bounds:

1111 1110 << 2
1111 1000

It is filled from the right with fresh zeros. :)

0001 1111 >> 3
0000 0011

Filled from the left. A special case is the leading 1. It often indicates a negative value - depending on the language and datatype. So often it is wanted, that if you shift right, the first bit stays as it is.

1100 1100 >> 1
1110 0110

And it is conserved over multiple shifts:

1100 1100 >> 2
1111 0011

If you don't want the first bit to be preserved, you use (in Java, Scala, C++, C as far as I know, and maybe more) a triple-sign-operator:

1100 1100 >>> 1
0110 0110

There isn't any equivalent in the other direction, because it doesn't make any sense - maybe in your very special context, but not in general.

Mathematically, a left-shift is a *=2, 2 left-shifts is a *=4 and so on. A right-shift is a /= 2 and so on.

you can use a Scanner to read from input :

Scanner scanner = new Scanner(System.in); 
char c = scanner.next().charAt(0); //charAt() method returns the character at the specified index in a string. The index of the first character is 0, the second character is 1, and so on.

This code works for me: check this link
This is my code when i stop and start service in activity

case R.id.buttonStart:
  Log.d(TAG, "onClick: starting srvice");
  startService(new Intent(this, MyService.class));
  break;
case R.id.buttonStop:
  Log.d(TAG, "onClick: stopping srvice");
  stopService(new Intent(this, MyService.class));
  break;
}
}
 }

And in service class:

  @Override
public void onCreate() {
    Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show();
    Log.d(TAG, "onCreate");

    player = MediaPlayer.create(this, R.raw.braincandy);
    player.setLooping(false); // Set looping
}

@Override
public void onDestroy() {
    Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show();
    Log.d(TAG, "onDestroy");
    player.stop();
}

HAPPY CODING!

val - Immutable(once initialized can't be reassigned)

var - Mutable(can able to change value)

Example

in Kotlin - val n = 20 & var n = 20

In Java - final int n = 20; & int n = 20;

For IE 6, you'll want to equal colspan to the number of columns in your table. If you have 5 columns, then you'll want: colspan="5".

The reason is that IE handles colspans differently, it uses the HTML 3.2 specification:

IE implements the HTML 3.2 definition, it sets colspan=0 as colspan=1.

The bug is well documented.

You can have a map injected using @ConfigurationProperties:

import java.util.HashMap;
import java.util.Map;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@EnableAutoConfiguration
@EnableConfigurationProperties
public class MapBindingSample {

    public static void main(String[] args) throws Exception {
        System.out.println(SpringApplication.run(MapBindingSample.class, args)
                .getBean(Test.class).getInfo());
    }

    @Bean
    @ConfigurationProperties
    public Test test() {
        return new Test();
    }

    public static class Test {

        private Map<String, Object> info = new HashMap<String, Object>();

        public Map<String, Object> getInfo() {
            return this.info;
        }
    }
}

Running this with the yaml in the question produces:

{build={artifact=${project.artifactId}, version=${project.version}, name=${project.name}, description=${project.description}}}

There are various options for setting a prefix, controlling how missing properties are handled, etc. See the javadoc for more information.

Python language reference:

In order to avoid infinite recursion in this method, its implementation should always call the base class method with the same name to access any attributes it needs, for example, object.__getattribute__(self, name).

Meaning:

def __getattribute__(self,name):
    ...
        return self.__dict__[name]

You're calling for an attribute called __dict__. Because it's an attribute, __getattribute__ gets called in search for __dict__ which calls __getattribute__ which calls ... yada yada yada

return  object.__getattribute__(self, name)

Using the base classes __getattribute__ helps finding the real attribute.

You cannot open new fragments. Fragments need to be always hosted by an activity. If the fragment is in the same activity (eg tabs) then the back key navigation is going to be tricky I am assuming that you want to open a new screen with that fragment.

So you would simply create a new activity and put the new fragment in there. That activity would then react to the intent either explicitly via the activity class or implicitly via intent filters.

I had the same issue once, the empty POST array is caused due a redirection of the request (on your server side), fix the URL so it doesn't have to be redirected when it hits the server. For Example, if https is forced using the .htaccess file on your server side app, make sure your client request has the "https://" prefix. Usually when a redirect happens the POST array is lost. I Hope this helps!

Firebug lite plugin in Safari extensions didn't work (it's made by slicefactory, I don't think it's offical). btw, #2 works for me!

In EF Core, I use the following statements to rename tables and columns:

As for renaming tables:

    protected override void Up(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.RenameTable(name: "OldTableName", schema: "dbo", newName: "NewTableName", newSchema: "dbo");
    }

    protected override void Down(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.RenameTable(name: "NewTableName", schema: "dbo", newName: "OldTableName", newSchema: "dbo");
    }

As for renaming columns:

    protected override void Up(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.RenameColumn(name: "OldColumnName", table: "TableName", newName: "NewColumnName", schema: "dbo");
    }

    protected override void Down(MigrationBuilder migrationBuilder)
    {
        migrationBuilder.RenameColumn(name: "NewColumnName", table: "TableName", newName: "OldColumnName", schema: "dbo");
    }

You could try putting the e-mails into a comma-delimited string ("[email protected], [email protected]"):

C#:

ArrayList arEmails = new ArrayList();
arEmails.Add("[email protected]");
arEmails.Add("[email protected]");
           
string strEmails = string.Join(", ", arEmails);

VB.NET if you're interested:

Dim arEmails As New ArrayList
arEmails.Add("[email protected]")
arEmails.Add("[email protected]")

Dim strEmails As String = String.Join(", ", arEmails)

#!/bin/bash

usage() { echo "Usage: $0 [-s <45|90>] [-p <string>]" 1>&2; exit 1; }

while getopts ":s:p:" o; do
    case "${o}" in
        s)
            s=${OPTARG}
            ((s == 45 || s == 90)) || usage
            ;;
        p)
            p=${OPTARG}
            ;;
        *)
            usage
            ;;
    esac
done
shift $((OPTIND-1))

if [ -z "${s}" ] || [ -z "${p}" ]; then
    usage
fi

echo "s = ${s}"
echo "p = ${p}"

Example runs:

$ ./myscript.sh
Usage: ./myscript.sh [-s <45|90>] [-p <string>]

$ ./myscript.sh -h
Usage: ./myscript.sh [-s <45|90>] [-p <string>]

$ ./myscript.sh -s "" -p ""
Usage: ./myscript.sh [-s <45|90>] [-p <string>]

$ ./myscript.sh -s 10 -p foo
Usage: ./myscript.sh [-s <45|90>] [-p <string>]

$ ./myscript.sh -s 45 -p foo
s = 45
p = foo

$ ./myscript.sh -s 90 -p bar
s = 90
p = bar

If it's because each tab will be running a different flow in your application, and mixing both flows causes problems, then it's better to "Regionalize" your session objects, so that each flow will use a different region of the session

This region can be implemented as simply as having different prefixes for each flow, or session object will hold multiple maps (one for each flow), and you use those maps instead of session attributes, the best though would be to extend your session class and use it instead.

The new FirefoxDriver(binary, profile, timeSpan) has been obsolete.

You can now use new FirefoxDriver(FirefoxDriverService.CreateDefaultService(), FirefoxOptions options, TimeSpan commandTimeout) instead.

There is also a new FirefoxDriver(string geckoDriverDirectory, FirefoxOptions options, TimeSpan commandTimeout) and it does works. But it's undocumented, and you need to manually specify geckoDriverDirectory even though it's already in Path.

Wrap it in a function:

create function now_utc() returns timestamp as $$
  select now() at time zone 'utc';
$$ language sql;

create temporary table test(
  id int,
  ts timestamp without time zone default now_utc()
);

<span style="text-align:center; display:block;">
<a href="http://news.awaissoft.com">Awaissoft</a>
</span>

I recently ran into the similar issue with react-native application. iPhone OS version was 13.1 I uninstalled the application and tried to install the app and noticed both location and notification permissions were not prompted.

On checking the settings, I could see my application was enabled for location(from previous installation) however there was no corresponding entry against the notification Tried uninstalling and rebooting without setting the time, it didn't work. Btw, I also tried to download the Appstore app, still same behavior.

The issue was resolved only after setting the device time.

Here is one way to calculate log return using .shift(). And the result is similar to but not the same as the gross return calculated by pct_change(). Can you upload a copy of your sample data (dropbox share link) to reproduce the inconsistency you saw?

import pandas as pd
import numpy as np

np.random.seed(0)
df = pd.DataFrame(100 + np.random.randn(100).cumsum(), columns=['price'])
df['pct_change'] = df.price.pct_change()
df['log_ret'] = np.log(df.price) - np.log(df.price.shift(1))

Out[56]: 
       price  pct_change  log_ret
0   101.7641         NaN      NaN
1   102.1642      0.0039   0.0039
2   103.1429      0.0096   0.0095
3   105.3838      0.0217   0.0215
4   107.2514      0.0177   0.0176
5   106.2741     -0.0091  -0.0092
6   107.2242      0.0089   0.0089
7   107.0729     -0.0014  -0.0014
..       ...         ...      ...
92  101.6160      0.0021   0.0021
93  102.5926      0.0096   0.0096
94  102.9490      0.0035   0.0035
95  103.6555      0.0069   0.0068
96  103.6660      0.0001   0.0001
97  105.4519      0.0172   0.0171
98  105.5788      0.0012   0.0012
99  105.9808      0.0038   0.0038

[100 rows x 3 columns]

A generic way that can be applied to any class without specific formatting could be done as follows:

class Element:
    def __init__(self, name, symbol, number):
        self.name = name
        self.symbol = symbol
        self.number = number

    def __str__(self):
        return str(self.__class__) + ": " + str(self.__dict__)

And then,

elem = Element('my_name', 'some_symbol', 3)
print(elem)

produces

__main__.Element: {'symbol': 'some_symbol', 'name': 'my_name', 'number': 3}

Add the indent parameter to json.dumps

 data = {'this': ['has', 'some', 'things'],
         'in': {'it': 'with', 'some': 'more'}}
 print(json.dumps(data, indent=4))

Also note that, you can simply use json.dump with the open jsonfile:

json.dump(data, jsonfile)

For the sake of a complete solution to this problem (yes, I know that this post died long ago...) :

If you want a JSONObject, then first get a String from the result:

String jsonString = EntityUtils.toString(response.getEntity());

Then you can get your JSONObject:

JSONObject jsonObject = new JSONObject(jsonString);

Ended up here to check if there was something builtin to the browser already, but it seems there isn't. This is my solution (very similar to Robert's answer):

"use strict";

const is_key_down = (() => {
    const state = {};

    window.addEventListener('keyup', (e) => state[e.key] = false);
    window.addEventListener('keydown', (e) => state[e.key] = true);

    return (key) => state.hasOwnProperty(key) && state[key] || false;
})();

You can then check if a key is pressed with is_key_down('ArrowLeft').

Simple way which i found is,

In servlet:

You can set the value and forward it to JSP like below

req.setAttribute("myname",login);
req.getRequestDispatcher("welcome.jsp").forward(req, resp); 

In Welcome.jsp you can get the values by

.<%String name = (String)request.getAttribute("myname"); %>
<%= name%>

(or) directly u can call

<%= request.getAttribute("myname") %>.

Combining phyzome's answer (which didn't work right away for me) with andreb's comment (which explains why it didn't) I ended up with this seemingly working code that temporarily disables NO_AUTO_CREATE_USER mode if it is active:

set @mode = @@SESSION.sql_mode;
set session sql_mode = replace(replace(@mode, 'NO_AUTO_CREATE_USER', ''), ',,', ',');
grant usage on *.* to 'myuser'@'%';
set session sql_mode = @mode;
drop user 'myuser'@'%';

The command is this:

mysqlcheck -u root -p --auto-repair --check --all-databases

You must supply the password when asked,

or you can run this one but it's not recommended because the password is written in clear text:

mysqlcheck -u root --password=THEPASSWORD --auto-repair --check --all-databases

Update: Mercurial has added --amend which should be the preferred option now.

You can rollback the last commit (but only the last one) with hg rollback and then reapply it.

Important: this permanently removes the latest commit (or pull). So if you've done a hg update that commit is no longer in your working directory then it's gone forever. So make a copy first.

Other than that, you cannot change the repository's history (including commit messages), because everything in there is check-summed. The only thing you could do is prune the history after a given changeset, and then recreate it accordingly.

None of this will work if you have already published your changes (unless you can get hold of all copies), and you also cannot "rewrite history" that include GPG-signed commits (by other people).

This only started happening to me today (May 2017) and no answers in this thread solved my issue. The resolution for me was from here;

https://forums.developer.apple.com/thread/76803

Open Terminal. Change to home directory,

cd ~  

Move the current transporter directory,

mv .itmstransporter/ .old_itmstransporter/ 

Invoke the following file to let Transporter update itself.

"/Applications/Xcode.app/Contents/Applications/Application Loader.app/Contents/itms/bin/iTMSTransporter"

Wait till it updates, then open Xcode and attempt upload.

Had a similar need. $compile does the job. (Not completely sure if this is "THE" way to do it, still working my way through angular)

http://jsbin.com/ebuhuv/7/edit - my exploration test.

One thing to note (per my example), one of my requirements was that the template would change based on a type attribute once you clicked save, and the templates were very different. So though, you get the data binding, if need a new template in there, you will have to recompile.

There is a patch for the sourcecode of minidlna at sourceforge available that does not make a full rescan, but a kind of incremental scan. That worked fine, but with some later version, the patch is broken. See here Link to SF

Regards Gerry

What you need to do is to exchange the SSH keys for the user the script runs as. Have a look at this tutorial

After doing so, your scripts will run without the need for entering a password. But, for security's sake, you don't want to do this for root users!

If you trust the data source, you can use eval to convert your string into a dictionary:

eval(your_json_format_string)

Example:

>>> x = "{'a' : 1, 'b' : True, 'c' : 'C'}"
>>> y = eval(x)

>>> print x
{'a' : 1, 'b' : True, 'c' : 'C'}
>>> print y
{'a': 1, 'c': 'C', 'b': True}

>>> print type(x), type(y)
<type 'str'> <type 'dict'>

>>> print y['a'], type(y['a'])
1 <type 'int'>

>>> print y['a'], type(y['b'])
1 <type 'bool'>

>>> print y['a'], type(y['c'])
1 <type 'str'>

think works

Criteria criteria = getSession().createCriteria(clazz); 
Criterion rest1= Restrictions.and(Restrictions.eq(A, "X"), 
           Restrictions.in("B", Arrays.asList("X",Y)));
Criterion rest2= Restrictions.and(Restrictions.eq(A, "Y"), 
           Restrictions.eq(B, "Z"));
criteria.add(Restrictions.or(rest1, rest2));

It can be done in two steps for Ubuntu 14.04 with Xampp 1.8.3-5

Step 1:- Change DocumentRoot and Directory path in /opt/lampp/etc/httpd.conf from

DocumentRoot "/opt/lampp/htdocs" and Directory "/opt/lampp/htdocs"

to DocumentRoot "/home/user/Desktop/js" and Directory "/home/user/Desktop/js"

Step 2:- Change the rights of folder (in path and its parent folders to 777) eg via

sudo chmod -R 777 /home/user/Desktop/js

If you are using ZSH and have Android Studio 1.3: 1. Open .zshrc file (Located in your home directory, file is hidden so make sure you can see hidden files) 2. Add this line at the end: alias adb="/Users/kamil/Library/Android/sdk/platform-tools/adb" 3. Quit terminal 4. Open terminal and type in adb devices 5. If it worked it will give you list of all connected devices