No, there's no built-in way to convert a class like you say. The simplest way to do this would be to do what you suggested: create a DerivedClass(BaseClass) constructor. Other options would basically come out to automate the copying of properties from the base to the derived instance, e.g. using reflection.

The code you posted using as will compile, as I'm sure you've seen, but will throw a null reference exception when you run it, because myBaseObject as DerivedClass will evaluate to null, since it's not an instance of DerivedClass.

You can use a copy constructor that immediately invokes the instance constructor, or if your instance constructor does more than assignments have the copy constructor assign the incoming values to the instance.

class Person
{
    // Copy constructor 
    public Person(Person previousPerson)
    {
        Name = previousPerson.Name;
        Age = previousPerson.Age;
    }

    // Copy constructor calls the instance constructor.
    public Person(Person previousPerson)
        : this(previousPerson.Name, previousPerson.Age)
    {
    }

    // Instance constructor.
    public Person(string name, int age)
    {
        Name = name;
        Age = age;
    }

    public int Age { get; set; }

    public string Name { get; set; }
}

Referenced the Microsoft C# Documentation under Constructor for this example having had this issue in the past.

In case you need to check each of the Employee object whether it is a Manager object, use the OfType method:

List<Employee> employees = new List<Employee>();

//Code to add some Employee or Manager objects..

var onlyManagers = employees.OfType<Manager>();

foreach (Manager m in onlyManagers) {
  // Do Manager specific thing..
}

Better try this method for upcasting, it's easy to understand:

/* upcasting problem */
class Animal
{ 
    public void callme()
    {
        System.out.println("In callme of Animal");
    }
}

class Dog extends Animal 
{ 
    public void callme()
    {
        System.out.println("In callme of Dog");
    }

    public void callme2()
    {
        System.out.println("In callme2 of Dog");
    }
}

public class Useanimlas 
{
    public static void main (String [] args) 
    {
        Animal animal = new Animal ();
        Dog dog = new Dog();
        Animal ref;
        ref = animal;
        ref.callme();
        ref = dog;
        ref.callme();
    }
}

The folder being password protected has nothing to do with PHP!

The method being used is called "Basic Authentication". There are no cross-browser ways to "logout" from it, except to ask the user to close and then open their browser...

Here's how you you could do it in PHP instead (fully remove your Apache basic auth in .htaccess or wherever it is first):

login.php:

<?php
session_start();
//change 'valid_username' and 'valid_password' to your desired "correct" username and password
if (! empty($_POST) && $_POST['user'] === 'valid_username' && $_POST['pass'] === 'valid_password')
{
    $_SESSION['logged_in'] = true;
    header('Location: /index.php');
}
else
{
    ?>

    <form method="POST">
    Username: <input name="user" type="text"><br>
    Password: <input name="pass" type="text"><br><br>
    <input type="submit" value="submit">
    </form>

    <?php
}

index.php

<?php
session_start();
if (! empty($_SESSION['logged_in']))
{
    ?>

    <p>here is my super-secret content</p>
    <a href='logout.php'>Click here to log out</a>

    <?php
}
else
{
    echo 'You are not logged in. <a href="login.php">Click here</a> to log in.';
}

logout.php:

<?php
session_start();
session_destroy();
echo 'You have been logged out. <a href="/">Go back</a>';

Obviously this is a very basic implementation. You'd expect the usernames and passwords to be in a database, not as a hardcoded comparison. I'm just trying to give you an idea of how to do the session thing.

Hope this helps you understand what's going on.

For newbies to VS Code, if you see the syntax error, check if you have saved the file. If you have a wrong syntax, save the file, and then fix the syntax withou saving again, VS Code will keep showing you the error. The error message will disappear only after you save the file.

Normally you would select IDs using the ID selector #, but for more complex matches you can use the attribute-starts-with selector (as a jQuery selector, or as a CSS3 selector):

div[id^="player_"]

If you are able to modify that HTML, however, you should add a class to your player divs then target that class. You'll lose the additional specificity offered by ID selectors anyway, as attribute selectors share the same specificity as class selectors. Plus, just using a class makes things much simpler.

There is a lot of confusion on this topic because there are so many different ways to do it.

Here are the appropriate types used in the following screen shots:

private route: ActivatedRoute
private router: Router

1) Required Routing Parameters:

2) Route Optional Parameters:

3) Route Query Parameters:

4) You can use a service to pass data from one component to another without using route parameters at all.

For an example see: https://blogs.msmvps.com/deborahk/build-a-simple-angular-service-to-share-data/

I have a plunker of this here: https://plnkr.co/edit/KT4JLmpcwGBM2xdZQeI9?p=preview

For referential integtity :

insert into  main_tbl (col1, ref1, ref2, createdby)
values ('col1_val',
        (select ref1 from ref1_tbl where lookup_val = 'lookup1'),
        (select ref2 from ref2_tbl where lookup_val = 'lookup2'),
        'init-load'
       );

The only solution I have found is not to set the index to a previous frame and wait (then OpenCV stops reading frames, anyway), but to initialize the capture one more time. So, it looks like this:

cap = cv2.VideoCapture(camera_url)
while True:
    ret, frame = cap.read()

    if not ret:
        cap = cv.VideoCapture(camera_url)
        continue

    # do your processing here

And it works perfectly!

It is true that a java class can implement multiple interfaces at the same time, but there is a catch here. If in a class, you are trying to implement two java interfaces, which contains methods with same signature but diffrent return type, in that case you will get compilation error.

interface One
{
    int m1();
}
interface Two
{
    float m1();
}
public class MyClass implements One, Two{
    int m1() {}
    float m1() {}
    public static void main(String... args) {

    }
}

output :

prog.java:14: error: method m1() is already defined in class MyClass
    public float m1() {}
                 ^
prog.java:11: error: MyClass is not abstract and does not override abstract method m1() in Two
public class MyClass implements One, Two{
       ^
prog.java:13: error: m1() in MyClass cannot implement m1() in Two
    public int m1() {}
               ^
  return type int is not compatible with float
3 errors

Two things:

1. Only need one (1) equals sign to evaluate
2. You need to specify a length on the VARCHAR - the default is a single character.

Use:

DECLARE @temp VARCHAR(10)
    SET @temp = 'm'

IF @temp = 'm'
  SELECT 'yes'
ELSE
  SELECT 'no'

VARCHAR(10) means the VARCHAR will accommodate up to 10 characters. More examples of the behavior -

DECLARE @temp VARCHAR
    SET @temp = 'm'

IF @temp = 'm'
  SELECT 'yes'
ELSE
  SELECT 'no'

...will return "yes"

DECLARE @temp VARCHAR
    SET @temp = 'mtest'

IF @temp = 'm'
  SELECT 'yes'
ELSE
  SELECT 'no'

...will return "no".

Try this:

string text = "My text that I want to display";
MessageBox.Show(text);

Using Except is exactly the right way to go. If your type overrides Equals and GetHashCode, or you're only interested in reference type equality (i.e. two references are only "equal" if they refer to the exact same object), you can just use:

var list3 = list1.Except(list2).ToList();

If you need to express a custom idea of equality, e.g. by ID, you'll need to implement IEqualityComparer<T>. For example:

public class IdComparer : IEqualityComparer<CustomObject>
{
    public int GetHashCode(CustomObject co)
    {
        if (co == null)
        {
            return 0;
        }
        return co.Id.GetHashCode();
    }

    public bool Equals(CustomObject x1, CustomObject x2)
    {
        if (object.ReferenceEquals(x1, x2))
        {
            return true;
        }
        if (object.ReferenceEquals(x1, null) ||
            object.ReferenceEquals(x2, null))
        {
            return false;
        }
        return x1.Id == x2.Id;
    }
}

Then use:

var list3 = list1.Except(list2, new IdComparer()).ToList();

Note that this will remove any duplicate elements. If you need duplicates to be preserved, it would probably be easiest to create a set from list2 and use something like:

var list3 = list1.Where(x => !set2.Contains(x)).ToList();

To convert an Object to XML in Java

Customer.java

package com;

import java.util.ArrayList;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

/**
*
* @author ABsiddik
*/

@XmlRootElement
public class Customer {

int id;
String name;
int age;

String address;
ArrayList<String> mobileNo;


 public int getId() {
    return id;
}

@XmlAttribute
public void setId(int id) {
    this.id = id;
}

public String getName() {
    return name;
}

@XmlElement
public void setName(String name) {
    this.name = name;
}

public int getAge() {
    return age;
}

@XmlElement
public void setAge(int age) {
    this.age = age;
}

public String getAddress() {
    return address;
}

@XmlElement
public void setAddress(String address) {
    this.address = address;
}

public ArrayList<String> getMobileNo() {
    return mobileNo;
}

@XmlElement
public void setMobileNo(ArrayList<String> mobileNo) {
    this.mobileNo = mobileNo;
}


}

ConvertObjToXML.java

package com;

import java.io.File;
import java.io.StringWriter;
import java.util.ArrayList;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;

/**
*
* @author ABsiddik
*/
public class ConvertObjToXML {

public static void main(String args[]) throws Exception
{
    ArrayList<String> numberList = new ArrayList<>();
    numberList.add("01942652579");
    numberList.add("01762752801");
    numberList.add("8800545");

    Customer c = new Customer();

    c.setId(23);
    c.setName("Abu Bakar Siddik");
    c.setAge(45);
    c.setAddress("Dhaka, Bangladesh");
    c.setMobileNo(numberList);

    File file = new File("C:\\Users\\NETIZEN-ONE\\Desktop \\customer.xml");
    JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
    Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
    jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);

    jaxbMarshaller.marshal(c, file);// this line create customer.xml file in specified path.

    StringWriter sw = new StringWriter();
    jaxbMarshaller.marshal(c, sw);
    String xmlString = sw.toString();

    System.out.println(xmlString);
}

}

Try with this example..

taskkill /im myprocess.exe /f

The "/f" is for "force". If you know the PID, then you can specify that, as in:

taskkill /pid 1234 /f

Lots of other options are possible, just type taskkill /? for all of them. The "/t" option kills a process and any child processes; that may be useful to you.

Most of the time problem is a spelling mistake in

<a [routerLink]="['/home']" routerLinkActive="active">Home</a>

Just check again for spelling.

Updated Method:

As of March 2016, recent versions of Chrome and Firefox now support using FormData.entries() to inspect FormData. Source.

// Create a test FormData object
var formData = new FormData();
formData.append('key1', 'value1');
formData.append('key2', 'value2');

// Display the key/value pairs
for (var pair of formData.entries()) {
    console.log(pair[0]+ ', ' + pair[1]); 
}

Thanks to Ghost Echo and rloth for pointing this out!

Old Answer:

After looking at these Mozilla articles, it looks like there is no way to get data out of a FormData object. You can only use them for building FormData to send via an AJAX request.

I also just found this question that states the same thing: FormData.append("key", "value") is not working.

One way around this would be to build up a regular dictionary and then convert it to FormData:

var myFormData = {
    key1: 300,
    key2: 'hello world'
};

var fd = new FormData();
for (var key in myFormData) {
    console.log(key, myFormData[key]);
    fd.append(key, myFormData[key]);
}

If you want to debug a plain FormData object, you could also send it in order to examine it in the network request console:

var xhr = new XMLHttpRequest;
xhr.open('POST', '/', true);
xhr.send(fd);

Twitter Bootstrap v3.0.3 has a class: center-block

Center content blocks

Set an element to display: block and center via margin. Available as a mixin and class.

Just need to add a class .center-block in the img tag, looks like this

<div class="container">
  <div class="row">
    <div class="span4"></div>
    <div class="span4"><img class="center-block" src="logo.png" /></div>
    <div class="span4"></div>
  </div>
</div>

In Bootstrap already has css style call .center-block

.center-block {
    display: block;
    margin-left: auto;
    margin-right: auto;
 }

You can see a sample from here

jQuery.offset needs to be combined with scrollTop and scrollLeft as shown in this diagram:

Demo:

function getViewportOffset($e) {_x000D_
  var $window = $(window),_x000D_
    scrollLeft = $window.scrollLeft(),_x000D_
    scrollTop = $window.scrollTop(),_x000D_
    offset = $e.offset(),_x000D_
    rect1 = { x1: scrollLeft, y1: scrollTop, x2: scrollLeft + $window.width(), y2: scrollTop + $window.height() },_x000D_
    rect2 = { x1: offset.left, y1: offset.top, x2: offset.left + $e.width(), y2: offset.top + $e.height() };_x000D_
  return {_x000D_
    left: offset.left - scrollLeft,_x000D_
    top: offset.top - scrollTop,_x000D_
    insideViewport: rect1.x1 < rect2.x2 && rect1.x2 > rect2.x1 && rect1.y1 < rect2.y2 && rect1.y2 > rect2.y1_x000D_
  };_x000D_
}_x000D_
$(window).on("load scroll resize", function() {_x000D_
  var viewportOffset = getViewportOffset($("#element"));_x000D_
  $("#log").text("left: " + viewportOffset.left + ", top: " + viewportOffset.top + ", insideViewport: " + viewportOffset.insideViewport);_x000D_
});

body { margin: 0; padding: 0; width: 1600px; height: 2048px; background-color: #CCCCCC; }_x000D_
#element { width: 384px; height: 384px; margin-top: 1088px; margin-left: 768px; background-color: #99CCFF; }_x000D_
#log { position: fixed; left: 0; top: 0; font: medium monospace; background-color: #EEE8AA; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
_x000D_
<!-- scroll right and bottom to locate the blue square -->_x000D_
<div id="element"></div>_x000D_
<div id="log"></div>

In a word no.

In two, not yet.

There is, however, an open issue for a --no-build flag to npm install to perform an installation without building, which could be used to do what you're asking.

See this open issue.

mysqldump doesn't work with: >nul 2>&1
Instead use: 2> nul
This suppress the stderr message: "Warning: Using a password on the command line interface can be insecure"

you can use this trick :

String s = "p";

char c = s.charAt(0);

You can use ALTER TABLE to change the auto_increment initial value:

ALTER TABLE tbl AUTO_INCREMENT = 5;

See the MySQL reference for more details.

Could you run a checksum of some sort on the result and store that locally? Then when your application queries the database, you can compare its checksum and determine if you should import it?

It looks like you may be able to use the ORA_HASH function to accomplish this.

Update: Another good resource: 10g’s ORA_HASH function to determine if two Oracle tables’ data are equal

just run your xammp as an administrator, it works

Example template for C++

template< class T >
T mod( T a, T b )
{
    T const r = a%b;
    return ((r!=0)&&((r^b)<0) ? r + b : r);
}

With this template, the returned remainder will be zero or have the same sign as the divisor (denominator) (the equivalent of rounding towards negative infinity), instead of the C++ behavior of the remainder being zero or having the same sign as the dividend (numerator) (the equivalent of rounding towards zero).

In general, one doesn't expand out log(a + b); you just deal with it as is. That said, there are occasionally circumstances where it makes sense to use the following identity:

log(a + b) = log(a * (1 + b/a)) = log a + log(1 + b/a)

(In fact, this identity is often used when implementing log in math libraries).

i couldn't change the permissions on the sharepoint i'm using but got a round it by uploading .url files with the drag and drop multiple files uploader.

Using the normal upload didn't work because they are intepreted by the file open dialog when you try to open them singly so it just tries to open the target not the .url file.

.url files can be made by saving a favourite with internet exploiter.

If I can add my $0.02, I prefer using PascalCase as enum values in C.

In C, they are basically global, and PEER_CONNECTED gets really tiring as opposed to PeerConnected.

Breath of fresh air.

Literally, it makes me breathe easier.

In Java, it is possible to use raw enum names as long as you static import them from another class.

import static pkg.EnumClass.*;

Now, you can use the unqualified names, that you qualified in a different way already.

I am currently (thinking) about porting some C code to Java and currently 'torn' between choosing Java convention (which is more verbose, more lengthy, and more ugly) and my C style.

PeerConnected would become PeerState.CONNECTED except in switch statements, where it is CONNECTED.

Now there is much to say for the latter convention and it does look nice but certain "idiomatic phrases" such as if (s == PeerAvailable) become like if (s == PeerState.AVAILABLE) and nostalgically, this is a loss of meaning to me.

I think I still prefer the Java style because of clarity but I have a hard time looking at the screaming code.

Now I realize PascalCase is already widely used in Java but very confusing it would not really be, just a tad out of place.

In java8 you no longer need to use Collections.sort method as LinkedList inherits the method sort from java.util.List, so adapting Fido's answer to Java8:

    LinkedList<String>list = new LinkedList<String>();
    list.add("abc");
    list.add("Bcd");
    list.add("aAb");

    list.sort( new Comparator<String>(){
    @Override
        public int compare(String o1,String o2){
            return Collator.getInstance().compare(o1,o2);
        }
    });

References:

http://docs.oracle.com/javase/8/docs/api/java/util/LinkedList.html

http://docs.oracle.com/javase/7/docs/api/java/util/List.html

The most flexible approach would be using this method

Arr::sortByKeys(array $array, $keys, bool $assoc = true): array

here's why:

• You can sort by any key (also nested like 'key1.key2.key3' or ['k1', 'k2', 'k3'])

• Works both on associative and not associative arrays ($assoc flag)

• It doesn't use reference - return new sorted array

In your case it would be as simple as:

$sortedArray = Arr::sortByKeys($array, 'order');

This method is a part of this library.

Here is the code with line 156, it has try and catch above it

    /// <summary>
    /// Execute a SQL Query statement, using the default SQL connection for the application
    /// </summary>
    /// <param name="query">SQL query to execute</param>
    /// <returns>DataTable of results</returns>
    public static DataTable Query(string query)
    {
        DataTable results = new DataTable();
        string configConnectionString = "ApplicationServices";

        System.Configuration.Configuration WebConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~/Web.config");
        System.Configuration.ConnectionStringSettings connString;

        if (WebConfig.ConnectionStrings.ConnectionStrings.Count > 0)
        {
            connString = WebConfig.ConnectionStrings.ConnectionStrings[configConnectionString];

            if (connString != null)
            {
                try
                {
                    using (SqlConnection conn = new SqlConnection(connString.ToString()))
                    using (SqlCommand cmd = new SqlCommand(query, conn))
                    using (SqlDataAdapter dataAdapter = new SqlDataAdapter(cmd))
                        dataAdapter.Fill(results);

                    return results;
                }
                catch (Exception ex)
                {
                    throw new SqlException(string.Format("SqlException occurred during query execution: ", ex));
                }
            }
            else
            {
                throw new SqlException(string.Format("Connection string for " + configConnectionString + "is null."));
            }
        }
        else
        {
            throw new SqlException(string.Format("No connection strings found in Web.config file."));
        }
    }

git stash save --keep-index did not worked for me.

below command worked as expected.

git reset --hard
git pull

It override all local changes if you don't need them.

If you want to avoid that on client side you can add something like ?v=1.x to css file link, when the file content is changed. for example if there was <link rel="stylesheet" type="text/css" href="css-file-name.css"> you can change it to <link rel="stylesheet" type="text/css" href="css-file-name.css?v=1.1"> this will bypass caching.

Important:

I'm sorry to say that the response from "Borealid" is imprecise and somewhat incorrect - firstly there is no relation to statefulness or statelessness to answer this question, and most importantly the definition of the tuple for a socket is incorrect.

First remember below two rules:

1. Primary key of a socket: A socket is identified by {SRC-IP, SRC-PORT, DEST-IP, DEST-PORT, PROTOCOL} not by {SRC-IP, SRC-PORT, DEST-IP, DEST-PORT} - Protocol is an important part of a socket's definition.

2. OS Process & Socket mapping: A process can be associated with (can open/can listen to) multiple sockets which might be obvious to many readers.

Example 1: Two clients connecting to same server port means: socket1 {SRC-A, 100, DEST-X,80, TCP} and socket2{SRC-B, 100, DEST-X,80, TCP}. This means host A connects to server X's port 80 and another host B also connects to same server X to the same port 80. Now, how the server handles these two sockets depends on if the server is single threaded or multiple threaded (I'll explain this later). What is important is that one server can listen to multiple sockets simultaneously.

To answer the original question of the post:

Irrespective of stateful or stateless protocols, two clients can connect to same server port because for each client we can assign a different socket (as client IP will definitely differ). Same client can also have two sockets connecting to same server port - since such sockets differ by SRC-PORT. With all fairness, "Borealid" essentially mentioned the same correct answer but the reference to state-less/full was kind of unnecessary/confusing.

To answer the second part of the question on how a server knows which socket to answer. First understand that for a single server process that is listening to same port, there could be more than one sockets (may be from same client or from different clients). Now as long as a server knows which request is associated with which socket, it can always respond to appropriate client using the same socket. Thus a server never needs to open another port in its own node than the original one on which client initially tried to connect. If any server allocates different server-ports after a socket is bound, then in my opinion the server is wasting its resource and it must be needing the client to connect again to the new port assigned.

A bit more for completeness:

Example 2: It's a very interesting question: "can two different processes on a server listen to the same port". If you do not consider protocol as one of parameter defining socket then the answer is no. This is so because we can say that in such case, a single client trying to connect to a server-port will not have any mechanism to mention which of the two listening processes the client intends to connect to. This is the same theme asserted by rule (2). However this is WRONG answer because 'protocol' is also a part of the socket definition. Thus two processes in same node can listen to same port only if they are using different protocol. For example two unrelated clients (say one is using TCP and another is using UDP) can connect and communicate to the same server node and to the same port but they must be served by two different server-processes.

Server Types - single & multiple:

When a server's processes listening to a port that means multiple sockets can simultaneously connect and communicate with the same server-process. If a server uses only a single child-process to serve all the sockets then the server is called single-process/threaded and if the server uses many sub-processes to serve each socket by one sub-process then the server is called multi-process/threaded server. Note that irrespective of the server's type a server can/should always uses the same initial socket to respond back (no need to allocate another server-port).

Suggested Books and rest of the two volumes if you can.

A Note on Parent/Child Process (in response to query/comment of 'Ioan Alexandru Cucu')

Wherever I mentioned any concept in relation to two processes say A and B, consider that they are not related by parent child relationship. OS's (especially UNIX) by design allow a child process to inherit all File-descriptors (FD) from parents. Thus all the sockets (in UNIX like OS are also part of FD) that a process A listening to, can be listened by many more processes A1, A2, .. as long as they are related by parent-child relation to A. But an independent process B (i.e. having no parent-child relation to A) cannot listen to same socket. In addition, also note that this rule of disallowing two independent processes to listen to same socket lies on an OS (or its network libraries) and by far it's obeyed by most OS's. However, one can create own OS which can very well violate this restrictions.

check .idea/misc.xml sometimes you need to change languageLevel="JDK_1_X" attribute manually

I settled on a solution inspired by the EqualBytesLongUnrolled method posted by ArekBulski with an additional optimization. In my instance, array differences in arrays tend to be near the tail of the arrays. In testing, I found that when this is the case for large arrays, being able to compare array elements in reverse order gives this solution a huge performance gain over the memcmp based solution. Here is that solution:

public enum CompareDirection { Forward, Backward }

private static unsafe bool UnsafeEquals(byte[] a, byte[] b, CompareDirection direction = CompareDirection.Forward)
{
    // returns when a and b are same array or both null
    if (a == b) return true;

    // if either is null or different lengths, can't be equal
    if (a == null || b == null || a.Length != b.Length)
        return false;

    const int UNROLLED = 16;                // count of longs 'unrolled' in optimization
    int size = sizeof(long) * UNROLLED;     // 128 bytes (min size for 'unrolled' optimization)
    int len = a.Length;
    int n = len / size;         // count of full 128 byte segments
    int r = len % size;         // count of remaining 'unoptimized' bytes

    // pin the arrays and access them via pointers
    fixed (byte* pb_a = a, pb_b = b)
    {
        if (r > 0 && direction == CompareDirection.Backward)
        {
            byte* pa = pb_a + len - 1;
            byte* pb = pb_b + len - 1;
            byte* phead = pb_a + len - r;
            while(pa >= phead)
            {
                if (*pa != *pb) return false;
                pa--;
                pb--;
            }
        }

        if (n > 0)
        {
            int nOffset = n * size;
            if (direction == CompareDirection.Forward)
            {
                long* pa = (long*)pb_a;
                long* pb = (long*)pb_b;
                long* ptail = (long*)(pb_a + nOffset);
                while (pa < ptail)
                {
                    if (*(pa + 0) != *(pb + 0) || *(pa + 1) != *(pb + 1) ||
                        *(pa + 2) != *(pb + 2) || *(pa + 3) != *(pb + 3) ||
                        *(pa + 4) != *(pb + 4) || *(pa + 5) != *(pb + 5) ||
                        *(pa + 6) != *(pb + 6) || *(pa + 7) != *(pb + 7) ||
                        *(pa + 8) != *(pb + 8) || *(pa + 9) != *(pb + 9) ||
                        *(pa + 10) != *(pb + 10) || *(pa + 11) != *(pb + 11) ||
                        *(pa + 12) != *(pb + 12) || *(pa + 13) != *(pb + 13) ||
                        *(pa + 14) != *(pb + 14) || *(pa + 15) != *(pb + 15)
                    )
                    {
                        return false;
                    }
                    pa += UNROLLED;
                    pb += UNROLLED;
                }
            }
            else
            {
                long* pa = (long*)(pb_a + nOffset);
                long* pb = (long*)(pb_b + nOffset);
                long* phead = (long*)pb_a;
                while (phead < pa)
                {
                    if (*(pa - 1) != *(pb - 1) || *(pa - 2) != *(pb - 2) ||
                        *(pa - 3) != *(pb - 3) || *(pa - 4) != *(pb - 4) ||
                        *(pa - 5) != *(pb - 5) || *(pa - 6) != *(pb - 6) ||
                        *(pa - 7) != *(pb - 7) || *(pa - 8) != *(pb - 8) ||
                        *(pa - 9) != *(pb - 9) || *(pa - 10) != *(pb - 10) ||
                        *(pa - 11) != *(pb - 11) || *(pa - 12) != *(pb - 12) ||
                        *(pa - 13) != *(pb - 13) || *(pa - 14) != *(pb - 14) ||
                        *(pa - 15) != *(pb - 15) || *(pa - 16) != *(pb - 16)
                    )
                    {
                        return false;
                    }
                    pa -= UNROLLED;
                    pb -= UNROLLED;
                }
            }
        }

        if (r > 0 && direction == CompareDirection.Forward)
        {
            byte* pa = pb_a + len - r;
            byte* pb = pb_b + len - r;
            byte* ptail = pb_a + len;
            while(pa < ptail)
            {
                if (*pa != *pb) return false;
                pa++;
                pb++;
            }
        }
    }

    return true;
}

def valid = pointAddress.findAll { a ->
    validPointTypes.any { a.contains(it) }
}

Should do it

Maybe you got your columns backwards??

ALTER TABLE Employees
ADD FOREIGN KEY (UserID)           <-- this needs to be a column of the Employees table
REFERENCES ActiveDirectories(id)   <-- this needs to be a column of the ActiveDirectories table

Could it be that the column is called ID in the Employees table, and UserID in the ActiveDirectories table?

Then your command should be:

ALTER TABLE Employees
ADD FOREIGN KEY (ID)                   <-- column in table "Employees"
REFERENCES ActiveDirectories(UserID)   <-- column in table "ActiveDirectories" 

An add-on to the previous answers since I came across this concern:

If you really want to insert something like 24-May-2005 to your DATE column, you could do something like this:

INSERT INTO someTable(Empid,Date_Joined)
VALUES
    ('S710',STR_TO_DATE('24-May-2005', '%d-%M-%Y'));

In the above query please note that if it's May(ie: the month in letters) the format should be %M.

NOTE: I tried this with the latest MySQL version 8.0 and it works!

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Call java script function on Code behind</title>
    <script  type="text/javascript">
    function abc()
    {
        var a=20;
        var b=30;
        alert("you enter"+a+":"+b);
    }
    </script>
</head>

cs code

protected void Page_Load(object sender, EventArgs e)
{
    TextBox2.Attributes.Add("onkeypress", "return abc();");
}

try this

I don't use nested classes much, but I do use them now and then. Especially when I define some kind of data type, and I then want to define a STL functor designed for that data type.

For example, consider a generic Field class that has an ID number, a type code and a field name. If I want to search a vector of these Fields by either ID number or name, I might construct a functor to do so:

class Field
{
public:
  unsigned id_;
  string name_;
  unsigned type_;

  class match : public std::unary_function<bool, Field>
  {
  public:
    match(const string& name) : name_(name), has_name_(true) {};
    match(unsigned id) : id_(id), has_id_(true) {};
    bool operator()(const Field& rhs) const
    {
      bool ret = true;
      if( ret && has_id_ ) ret = id_ == rhs.id_;
      if( ret && has_name_ ) ret = name_ == rhs.name_;
      return ret;
    };
    private:
      unsigned id_;
      bool has_id_;
      string name_;
      bool has_name_;
  };
};

Then code that needs to search for these Fields can use the match scoped within the Field class itself:

vector<Field>::const_iterator it = find_if(fields.begin(), fields.end(), Field::match("FieldName"));

XCODE 8.2 AND SWIFT 3.0

Present an exist UIViewController

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.present(loginVC, animated: true, completion: nil)

Push an exist UIViewController

let loginVC = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "LoginViewController") as! LoginViewController
self.navigationController?.pushViewController(loginVC, animated: true)

Remember that you can put the UIViewController Identifier following the next steps:

• Select Main.storyboard
• Select your UIViewController
• Search the Utilities in the right
• Select the identity inspector
• Search in section identity "Storyboard ID"
• Put the Identifier for your UIViewController

UPDATE: i updated to include the latest from pm2:

for many use cases, using a systemd service is the simplest and most appropriate way to manage a node process. for those that are running numerous node processes or independently-running node microservices in a single environment, pm2 is a more full featured tool.

https://github.com/unitech/pm2

http://pm2.io

• it has a really useful monitoring feature -> pretty 'gui' for command line monitoring of multiple processes with pm2 monit or process list with pm2 list
• organized Log management -> pm2 logs
• other stuff:

  • Behavior configuration
  • Source map support
  • PaaS Compatible
  • Watch & Reload
  • Module System
  • Max memory reload
  • Cluster Mode
  • Hot reload
  • Development workflow
  • Startup Scripts
  • Auto completion
  • Deployment workflow
  • Keymetrics monitoring
  • API

In order to run scripts, you should write the "python test.py" command in the command prompt, and not within the python shell. also, the test.py file should be at the path you run from in the cli.

SlickGrid has this functionality, see the tree demo.

If you want to build your own, here is an example (jsFiddle demo): Build your table with a data-depth attribute to indicate the depth of the item in the tree (the levelX CSS classes are just for styling indentation): 

<table id="mytable">
    <tr data-depth="0" class="collapse level0">
        <td><span class="toggle collapse"></span>Item 1</td>
        <td>123</td>
    </tr>
    <tr data-depth="1" class="collapse level1">
        <td><span class="toggle"></span>Item 2</td>
        <td>123</td>
    </tr>
</table>

Then when a toggle link is clicked, use Javascript to hide all <tr> elements until a <tr> of equal or less depth is found (excluding those already collapsed):

$(function() {
    $('#mytable').on('click', '.toggle', function () {
        //Gets all <tr>'s  of greater depth below element in the table
        var findChildren = function (tr) {
            var depth = tr.data('depth');
            return tr.nextUntil($('tr').filter(function () {
                return $(this).data('depth') <= depth;
            }));
        };

        var el = $(this);
        var tr = el.closest('tr'); //Get <tr> parent of toggle button
        var children = findChildren(tr);

        //Remove already collapsed nodes from children so that we don't
        //make them visible. 
        //(Confused? Remove this code and close Item 2, close Item 1 
        //then open Item 1 again, then you will understand)
        var subnodes = children.filter('.expand');
        subnodes.each(function () {
            var subnode = $(this);
            var subnodeChildren = findChildren(subnode);
            children = children.not(subnodeChildren);
        });

        //Change icon and hide/show children
        if (tr.hasClass('collapse')) {
            tr.removeClass('collapse').addClass('expand');
            children.hide();
        } else {
            tr.removeClass('expand').addClass('collapse');
            children.show();
        }
        return children;
    });
});

Try mylist[0][0]. This should return the first character.

I know there is a more elegant way to do this and I'm open to suggestions... this is what I did:

          try
            {


             // Set directory for list to be made of
                DirectoryInfo jpegInfo = new DirectoryInfo(destinationFolder);
                DirectoryInfo jpgInfo = new DirectoryInfo(destinationFolder);
                DirectoryInfo gifInfo = new DirectoryInfo(destinationFolder);
                DirectoryInfo tiffInfo = new DirectoryInfo(destinationFolder);
                DirectoryInfo bmpInfo = new DirectoryInfo(destinationFolder);

                // Set file type
                FileInfo[] Jpegs = jpegInfo.GetFiles("*.jpeg");
                FileInfo[] Jpgs = jpegInfo.GetFiles("*.jpg");
                FileInfo[] Gifs = gifInfo.GetFiles("*.gif");
                FileInfo[] Tiffs = gifInfo.GetFiles("*.tiff");
                FileInfo[] Bmps = gifInfo.GetFiles("*.bmp");

        //  listBox1.Items.Add(@"");  // Hack for the first list item no preview problem
        // Iterate through each file, displaying only the name inside the listbox...
        foreach (FileInfo file in Jpegs)
        {
                listBox1.Items.Add(file.Name);
                Photo curPhoto = new Photo();
                curPhoto.PhotoLocation = file.FullName;
                metaData.AddPhoto(curPhoto);
            }

          foreach (FileInfo file in Jpgs)
          {
              listBox1.Items.Add(file.Name);
                Photo curPhoto = new Photo();
                curPhoto.PhotoLocation = file.FullName;
                metaData.AddPhoto(curPhoto);
            }
          foreach (FileInfo file in Gifs)
          {
              listBox1.Items.Add(file.Name);
              Photo curPhoto = new Photo();
              curPhoto.PhotoLocation = file.FullName;
              metaData.AddPhoto(curPhoto);
          }
          foreach (FileInfo file in Tiffs)
          {
              listBox1.Items.Add(file.Name);
              Photo curPhoto = new Photo();
              curPhoto.PhotoLocation = file.FullName;
              metaData.AddPhoto(curPhoto);
          }
          foreach (FileInfo file in Bmps)
          {
              listBox1.Items.Add(file.Name);
              Photo curPhoto = new Photo();
              curPhoto.PhotoLocation = file.FullName;
              metaData.AddPhoto(curPhoto);
          }

Your css is almost correct. You are just missing display: block; in image css. Also one typo in your id. It should be <div id="ImageContainer">

img.Image { max-width: 100%; display: block; }_x000D_
div#ImageContainer { width: 600px; }

<div id="ImageContainer">_x000D_
    <img src="http://placehold.it/1000x600" class="Image">_x000D_
</div>

The code below worked for me I used part of the code above inside the button class.

public Button signupB;

public void handleButtonClick (){

    try {
        FXMLLoader fxmlLoader = new FXMLLoader();
        fxmlLoader.setLocation(getClass().getResource("sceneNotAvailable.fxml"));
        /*
         * if "fx:controller" is not set in fxml
         * fxmlLoader.setController(NewWindowController);
         */
        Scene scene = new Scene(fxmlLoader.load(), 630, 400);
        Stage stage = new Stage();
        stage.setTitle("New Window");
        stage.setScene(scene);
        stage.show();
    } catch (IOException e) {
        Logger logger = Logger.getLogger(getClass().getName());
        logger.log(Level.SEVERE, "Failed to create new Window.", e);
    }

}

}

Here is the minimal change to the original proposal to create a valid daemon in Bourne shell (or Bash):

#!/bin/sh
if [ "$1" != "__forked__" ]; then
    setsid "$0" __forked__ "$@" &
    exit
else
    shift
fi

trap 'siguser1=true' SIGUSR1
trap 'echo "Clean up and exit"; kill $sleep_pid; exit' SIGTERM
exec > outfile
exec 2> errfile
exec 0< /dev/null

while true; do
    (sleep 30000000 &>/dev/null) &
    sleep_pid=$!
    wait
    kill $sleep_pid &>/dev/null
    if [ -n "$siguser1" ]; then
        siguser1=''
        echo "Wait was interrupted by SIGUSR1, do things here."
    fi
done

Explanation:

• Line 2-7: A daemon must be forked so it doesn't have a parent. Using an artificial argument to prevent endless forking. "setsid" detaches from starting process and terminal.
• Line 9: Our desired signal needs to be differentiated from other signals.
• Line 10: Cleanup is required to get rid of dangling "sleep" processes.
• Line 11-13: Redirect stdout, stderr and stdin of the script.
• Line 16: sleep in the background
• Line 18: wait waits for end of sleep, but gets interrupted by (some) signals.
• Line 19: Kill sleep process, because that is still running when signal is caught.
• Line 22: Do the work if SIGUSR1 has been caught.

Guess it does not get any simpler than that.

You can do it like this by iterating through the array in a loop, accumulating the new HTML into it's own array and then joining the HTML all together and inserting it into the DOM at the end:

var array = [...];
var newHTML = [];
for (var i = 0; i < array.length; i++) {
    newHTML.push('<span>' + array[i] + '</span>');
}
$(".element").html(newHTML.join(""));

Some people prefer to use jQuery's .each() method instead of the for loop which would work like this:

var array = [...];
var newHTML = [];
$.each(array, function(index, value) {
    newHTML.push('<span>' + value + '</span>');
});
$(".element").html(newHTML.join(""));

Or because the output of the array iteration is itself an array with one item derived from each item in the original array, jQuery's .map can be used like this:

var array = [...];
var newHTML = $.map(array, function(value) {
    return('<span>' + value + '</span>');
});
$(".element").html(newHTML.join(""));

Which you should use is a personal choice depending upon your preferred coding style, sensitivity to performance and familiarity with .map(). My guess is that the for loop would be the fastest since it has fewer function calls, but if performance was the main criteria, then you would have to benchmark the options to actually measure.

FYI, in all three of these options, the HTML is accumulated into an array, then joined together at the end and the inserted into the DOM all at once. This is because DOM operations are usually the slowest part of an operation like this so it's best to minimize the number of separate DOM operations. The results are accumulated into an array because adding items to an array and then joining them at the end is usually faster than adding strings as you go.

And, if you can live with IE9 or above (or install an ES5 polyfill for .map()), you can use the array version of .map like this:

var array = [...];
$(".element").html(array.map(function(value) {
    return('<span>' + value + '</span>');
}).join(""));

Note: this version also gets rid of the newHTML intermediate variable in the interest of compactness.

// Month here is 1-indexed (January is 1, February is 2, etc). This is
// because we're using 0 as the day so that it returns the last day
// of the last month, so you have to add 1 to the month number 
// so it returns the correct amount of days
function daysInMonth (month, year) {
    return new Date(year, month, 0).getDate();
}

// July
daysInMonth(7,2009); // 31
// February
daysInMonth(2,2009); // 28
daysInMonth(2,2008); // 29

It's Simple.You can use

select (sysdate+2) as new_date from dual;

This will add two days from current date.

They are called ifdef or include guards.

If writing a small program it might seems that it is not needed, but as the project grows you could intentionally or unintentionally include one file many times, which can result in compilation warning like variable already declared.

#ifndef checks whether HEADERFILE_H is not declared.
#define will declare HEADERFILE_H once #ifndef generates true.
#endif is to know the scope of #ifndef i.e end of #ifndef

If it is not declared which means #ifndef generates true then only the part between #ifndef and #endif executed otherwise not. This will prevent from again declaring the identifiers, enums, structure, etc...

Note: This answer is for the specific question asked above. If you are here from Google and just looking for a way to get a Cartesian product in Python, itertools.product or a simple list comprehension may be what you are looking for - see the other answers.

Suppose len(list1) >= len(list2). Then what you appear to want is to take all permutations of length len(list2) from list1 and match them with items from list2. In python:

import itertools
list1=['a','b','c']
list2=[1,2]

[list(zip(x,list2)) for x in itertools.permutations(list1,len(list2))]

Returns

[[('a', 1), ('b', 2)], [('a', 1), ('c', 2)], [('b', 1), ('a', 2)], [('b', 1), ('c', 2)], [('c', 1), ('a', 2)], [('c', 1), ('b', 2)]]

This should work for you

 public class MyActivity extends Activity {

    protected ProgressDialog mProgressDialog;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        populateTable();
    }

    private void populateTable() {
        mProgressDialog = ProgressDialog.show(this, "Please wait","Long operation starts...", true);
        new Thread() {
            @Override
            public void run() {

                doLongOperation();
                try {

                    // code runs in a thread
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            mProgressDialog.dismiss();
                        }
                    });
                } catch (final Exception ex) {
                    Log.i("---","Exception in thread");
                }
            }
        }.start();

    }

    /** fake operation for testing purpose */
    protected void doLongOperation() {
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
        }

    }
}

The Listview scroll will be positioned to top by default, but want to scroll if not visible then use this:

if (listView1.getFirstVisiblePosition() > position || listView1.getLastVisiblePosition() < position)
            listView1.setSelection(position);

here's your amended script

#!/bin/bash    
folder="ABC" #no spaces between assignment    
useracct='test'    
day=$(date "+%d") # use $() to assign return value of date command to variable    
month=$(date "+%B")     
year=$(date "+%Y")    
folderToBeMoved="/users/$useracct/Documents/Archive/Primetime.eyetv"    
newfoldername="/Volumes/Media/Network/$folder/$month$day$year"    
ECHO "Network is $network" $network    
ECHO "day is $day"    
ECHO "Month is $month"    
ECHO "YEAR is $year"    
ECHO "source is $folderToBeMoved"    
ECHO "dest is $newfoldername"    

mkdir "$newfoldername"    
cp -R "$folderToBeMoved" "$newfoldername"
if [ -f "$newfoldername/Primetime.eyetv" ]; then # <-- put a space at square brackets and quote your variables.
 rm "$folderToBeMoved";
fi

Arrays in PHP can have Key Value structure.

A reboot prevents it from opening the dialog.

You are missing PIL (Python Image Library and Imaging package). To install PIL I used

 pip install pillow

For my machine running Mac OSX 10.6.8, I downloaded Imaging package and installed it from source. http://effbot.org/downloads/Imaging-1.1.6.tar.gz and cd into Download directory. Then run these:

    $ gunzip Imaging-1.1.6.tar.gz
    $ tar xvf Imaging-1.1.6.tar
    $ cd Imaging-1.1.6
    $ python setup.py install

Or if you have PIP installed in your Mac

 pip install http://effbot.org/downloads/Imaging-1.1.6.tar.gz

then you can use:

from PIL import Image

in your python code.

use

   statusCode: {
    404: function() {
      alert('page not found');
    }
  }

-

$.ajax({
    type: 'POST',
    url: '/controller/action',
    data: $form.serialize(),
    success: function(data){
        alert('horray! 200 status code!');
    },
    statusCode: {
    404: function() {
      alert('page not found');
    },

    400: function() {
       alert('bad request');
   }
  }

});

I use this mnemonic:

• Single quotes are for strings (one thing)
• Double quotes are for tables names and column names (two things)

This is not 100% correct according to the specs, but this mnemonic helps me (human being).

You can also combine them I guess:

<!doctype html>
<html ng-app="myApp">
<head>
    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://code.angularjs.org/1.1.2/angular.min.js"></script>
    <script type="text/javascript">
        var myApp = angular.module('myApp', []);

        myApp.factory('myService', function() {
            return {
                foo: function() {
                    alert("I'm foo!");
                }
            };
        });

        myApp.run(function($rootScope, myService) {
            $rootScope.appData = myService;
        });

        myApp.controller('MainCtrl', ['$scope', function($scope){

        }]);

    </script>
</head>
<body ng-controller="MainCtrl">
    <button ng-click="appData.foo()">Call foo</button>
</body>
</html>

I had the same issue as @Gravity Grave whereby scrolling doesn't work if you use

data-toggle="modal" data-target="TARGET-2" 

in conjunction with

data-dismiss="modal"

The scroll doesn't work correctly and reverts to scrolling the page rather than the modal. This is due to data-dismiss removing the modal-open class from the tag.

My solution in the end was to set the html of the inner component on the modal and use css to fade the text in/out.

Best practice: one form per product is definitely the way to go.

Benefits:

• It will save you the hassle of having to parse the data to figure out which product was clicked
• It will reduce the size of data being posted

In your specific situation

If you only ever intend to have one form element, in this case a submit button, one form for all should work just fine.

My recommendation Do one form per product, and change your markup to something like:

<form method="post" action="">
    <input type="hidden" name="product_id" value="123">
    <button type="submit" name="action" value="add_to_cart">Add to Cart</button>
</form>

This will give you a much cleaner and usable POST. No parsing. And it will allow you to add more parameters in the future (size, color, quantity, etc).

Note: There's no technical benefit to using <button> vs. <input>, but as a programmer I find it cooler to work with action=='add_to_cart' than action=='Add to Cart'. Besides, I hate mixing presentation with logic. If one day you decide that it makes more sense for the button to say "Add" or if you want to use different languages, you could do so freely without having to worry about your back-end code.

In [95]: import scipy

In [96]: scipy.__version__
Out[96]: '0.12.0'

In [104]: scipy.version.*version?
scipy.version.full_version
scipy.version.short_version
scipy.version.version

In [105]: scipy.version.full_version
Out[105]: '0.12.0'

In [106]: scipy.version.git_revision
Out[106]: 'cdd6b32233bbecc3e8cbc82531905b74f3ea66eb'

In [107]: scipy.version.release
Out[107]: True

In [108]: scipy.version.short_version
Out[108]: '0.12.0'

In [109]: scipy.version.version
Out[109]: '0.12.0'

See SciPy doveloper documentation for reference.

@marius

Yes, you can use several namespaces at a time, eg:

using namespace boost;   
using namespace std;  

shared_ptr<int> p(new int(1));   // shared_ptr belongs to boost   
cout << "cout belongs to std::" << endl;   // cout and endl are in std

[Feb. 2014 -- (Has it really been that long?): This particular example is now ambiguous, as Joey points out below. Boost and std:: now each have a shared_ptr.]

Just adding to the answers already given, the solution using the string "nunique" seems much faster, tested here on ~21M rows dataframe, then grouped to ~2M

%time _=g.agg({"id": lambda x: x.nunique()})
CPU times: user 3min 3s, sys: 2.94 s, total: 3min 6s
Wall time: 3min 20s

%time _=g.agg({"id": pd.Series.nunique})
CPU times: user 3min 2s, sys: 2.44 s, total: 3min 4s
Wall time: 3min 18s

%time _=g.agg({"id": "nunique"})
CPU times: user 14 s, sys: 4.76 s, total: 18.8 s
Wall time: 24.4 s

You need to install Dot Net 4.0.2 or above as mentioned here.
The 4.0 bits don't understand the syntax required by LocalDB

See this question here

You can dowload the update here

After calling GroupBy, you get a series of groups IEnumerable<Grouping>, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable<T> of whatever items are in your original data set. You just have to call Count() on that Grouping to get the subtotal.

foreach(var line in data.GroupBy(info => info.metric)
                        .Select(group => new { 
                             Metric = group.Key, 
                             Count = group.Count() 
                        })
                        .OrderBy(x => x.Metric))
{
     Console.WriteLine("{0} {1}", line.Metric, line.Count);
}

I'm assuming you already have a list/array of some class that looks like

class UserInfo {
    string name;
    int metric;
    ..etc..
} 
...
List<UserInfo> data = ..... ;

When you do data.GroupBy(x => x.metric), it means "for each element x in the IEnumerable defined by data, calculate it's .metric, then group all the elements with the same metric into a Grouping and return an IEnumerable of all the resulting groups. Given your example data set of

    <DATA>           | Grouping Key (x=>x.metric) |
joe  1 01/01/2011 5  | 1
jane 0 01/02/2011 9  | 0
john 2 01/03/2011 0  | 2
jim  3 01/04/2011 1  | 3
jean 1 01/05/2011 3  | 1
jill 2 01/06/2011 5  | 2
jeb  0 01/07/2011 3  | 0
jenn 0 01/08/2011 7  | 0

it would result in the following result after the groupby:

(Group 1): [joe  1 01/01/2011 5, jean 1 01/05/2011 3]
(Group 0): [jane 0 01/02/2011 9, jeb  0 01/07/2011 3, jenn 0 01/08/2011 7]
(Group 2): [john 2 01/03/2011 0, jill 2 01/06/2011 5]
(Group 3): [jim  3 01/04/2011 1]

This may be a late reply. But it may help others. It is very simple in MY SQL Workbench ( I am using Workbench version 6.3 and My SQL Version 5.1 Community edition): Right click on the table for which you want the create script, select 'Copy to Clipboard --> Create Statement' option. Simply paste in any text editor you want to get the create script.

For example :

<div style="height:100px; width:100px; background:#000000"></div>

here.

you give css to div of height and width having 100px and background as black.

PS : try to avoid inline-css you can make external CSS and import in your html file.

you can refer here for CSS

hope this helps.

You can also do this

<input type="hidden" name="text" value="{% url 'dashboard' %}" />

First check the list:-

git stash list

copy the index you wanted to pop from the stash list

git stash pop stash@{index_number}

eg.:

git stash pop stash@{1}

private static String getPreviousMonthDate(Date date){
    final SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy");

    Calendar cal = Calendar.getInstance();  
    cal.setTime(date);  
    cal.set(Calendar.DAY_OF_MONTH, 1);  
    cal.add(Calendar.DATE, -1);

    Date preMonthDate = cal.getTime();  
    return format.format(preMonthDate);
}


private static String getPreToPreMonthDate(Date date){
    final SimpleDateFormat format = new SimpleDateFormat("dd-MM-yyyy");

    Calendar cal = Calendar.getInstance();  
    cal.setTime(date);  
    cal.add(Calendar.MONTH, -1);  
    cal.set(Calendar.DAY_OF_MONTH,1);  
    cal.add(Calendar.DATE, -1);  

    Date preToPreMonthDate = cal.getTime();  
    return format.format(preToPreMonthDate);
}

In python 3 you can easily convert a byte string into a list of integers (0..255) by

>>> list(b'y\xcc\xa6\xbb')
[121, 204, 166, 187]

jQuery will do the job. You can use either jQuery.ajax function, which is general one for performing ajax calls, or its wrappers: jQuery.get, jQuery.post for getting/posting data. Its very easy to use, for example, check out this tutorial, which shows how to use jQuery with PHP.

The observation that the event had to be initiated by the user helped me to figure out the first part of this, but even after that Chrome and Firefox still blocked the new window. The second part was adding target="_blank" to the link, which was mentioned in one comment.

In summary: you need to call window.open from an event initiated by the user, in this case clicking on a link, and that link needs to have target="_blank".

In the example below the link is using class="button-twitter".

$('.button-twitter').click(function(e) {
  e.preventDefault();
  var href = $(this).attr('href');
  var tweet_popup = window.open(href, 'tweet_popup', 'width=500,height=300');
});

You can't mix tab and spaces for identation. Best practice is to convert all tabs to spaces.

How to fix this? Well just delete all the spaces/tabs before each line and convert them uniformly either to tabs OR spaces, but don't mix. Best solution: enable in your Editor the option to convert automagically any tabs to spaces.

Also be aware that your actual problem may lie in the lines before this block, and python throws the error here, because of a leading invalid indentation which doesn't match the following identations!

Try this ..

    txtview.setCompoundDrawablesWithIntrinsicBounds(
                    R.drawable.image, 0, 0, 0);

Also see this.. http://developer.android.com/reference/android/widget/TextView.html

Try this in xml file

    <TextView
        android:id="@+id/txtStatus"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:drawableLeft="@drawable/image"
        android:drawablePadding="5dp"
        android:maxLines="1"
        android:text="@string/name"/>

Simply add fill:"desiredColor" in the svg tag of the image: example:

<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="#bbb9c6">
<path d="M20 2H4c-1.1 0-1.99.9-1.99 2L2 22l4-4h14c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm-2 12H6v-2h12v2zm0-3H6V9h12v2zm0-3H6V6h12v2z"/><path d="M0 0h24v24H0z" fill="none"/></svg>

Try:

<c:if test = "${ansokanInfo.PSystem == 'NAT'}">

JSP/Servlet 2.4 (I think that's the version number) doesn't support method calls in EL and only support properties. The latest servlet containers do support method calls (ie Tomcat 7).

A node can be a number of different kinds of things: some text, a comment, an element, an entity, etc. An element is a particular kind of node.

Though using find command can be useful here, the shell itself provides options to achieve this requirement without any third party tools. The bash shell provides an extended glob support option using which you can get the file names under recursive paths that match with the extensions you want.

The extended option is extglob which needs to be set using the shopt option as below. The options are enabled with the -s support and disabled with he -u flag. Additionally you could use couple of options more i.e. nullglob in which an unmatched glob is swept away entirely, replaced with a set of zero words. And globstar that allows to recurse through all the directories

shopt -s extglob nullglob globstar

Now all you need to do is form the glob expression to include the files of a certain extension which you can do as below. We use an array to populate the glob results because when quoted properly and expanded, the filenames with special characters would remain intact and not get broken due to word-splitting by the shell.

For example to list all the *.csv files in the recursive paths

fileList=(**/*.csv)

The option ** is to recurse through the sub-folders and *.csv is glob expansion to include any file of the extensions mentioned. Now for printing the actual files, just do

printf '%s\n' "${fileList[@]}"

Using an array and doing a proper quoted expansion is the right way when used in shell scripts, but for interactive use, you could simply use ls with the glob expression as

ls -1 -- **/*.csv

This could very well be expanded to match multiple files i.e. file ending with multiple extension (i.e. similar to adding multiple flags in find command). For example consider a case of needing to get all recursive image files i.e. of extensions *.gif, *.png and *.jpg, all you need to is

ls -1 -- **/+(*.jpg|*.gif|*.png)

This could very well be expanded to have negate results also. With the same syntax, one could use the results of the glob to exclude files of certain type. Assume you want to exclude file names with the extensions above, you could do

excludeResults=()
excludeResults=(**/!(*.jpg|*.gif|*.png))
printf '%s\n' "${excludeResults[@]}"

The construct !() is a negate operation to not include any of the file extensions listed inside and | is an alternation operator just as used in the Extended Regular Expressions library to do an OR match of the globs.

Note that these extended glob support is not available in the POSIX bourne shell and its purely specific to recent versions of bash. So if your are considering portability of the scripts running across POSIX and bash shells, this option wouldn't be right.

Yes. You can have a span within a span. Your problem stems from something else.

They both represent floating point numbers. A FLOAT is for single-precision, while a DOUBLE is for double-precision numbers.

MySQL uses four bytes for single-precision values and eight bytes for double-precision values.

There is a big difference from floating point numbers and decimal (numeric) numbers, which you can use with the DECIMAL data type. This is used to store exact numeric data values, unlike floating point numbers, where it is important to preserve exact precision, for example with monetary data.

You can use this css code to get gutterless grid in bootstrap.

.no-gutter.row,
.no-gutter.container,
.no-gutter.container-fluid{
  margin-left: 0;
  margin-right: 0;
}

.no-gutter>[class^="col-"]{
  padding-left: 0;
  padding-right: 0;
}

Date long getTime() returns the number of milliseconds since January 1, 1970, 00:00:00 GMT represented by this Date object.

//test if date1 is before date2
if(date1.getTime() < date2.getTime()) {
....
}

It seems you're actually talking about an MVC (Model-View-Controller) pattern, where logic is separated into various "tiers". Django, as a framework, follows MVC (loosely). You have models that contain your business logic and relate directly to tables in your database, views which in effect act like the controller, handling requests and returning responses, and finally, templates which handle presentation.

Django isn't just one of these, it is a complete framework for application development and provides all the tools you need for that purpose.

Frontend vs Backend is all semantics. You could potentially build a Django app that is entirely "backend", using its built-in admin contrib package to manage the data for an entirely separate application. Or, you could use it solely for "frontend", just using its views and templates but using something else entirely to manage the data. Most usually, it's used for both. The built-in admin (the "backend"), provides an easy way to manage your data and you build apps within Django to present that data in various ways. However, if you were so inclined, you could also create your own "backend" in Django. You're not forced to use the default admin.

This is a very good interview question. Sometimes they might even ask you what is the difference between a final object and immutable object.

1) When someone mentions a final object, it means that the reference cannot be changed, but its state(instance variables) can be changed.

2) An immutable object is one whose state can not be changed, but its reference can be changed. Ex:

    String x = new String("abc"); 
    x = "BCG";

ref variable x can be changed to point a different string, but value of "abc" cannot be changed.

3) Instance variables(non static fields) are initialized when a constructor is called. So you can initialize values to you variables inside a constructor.

4) "But i see that you can change the value in the constructor/methods of the class". -- You cannot change it inside a method.

5) A static variable is initialized during class loading. So you cannot initialize inside a constructor, it has to be done even before it. So you need to assign values to a static variable during declaration itself.

I was able to resolve this very easily my simply enqueuing jQuery wp_enqueue_script("jquery");

UPDATE Feb. 2021

As in Activity v1.2.0 and Fragment v1.3.0, the new Activity Result APIs have been introduced.

The Activity Result APIs provide components for registering for a result, launching the result, and handling the result once it is dispatched by the system.

So there is no need of using startActivityForResult and onActivityResult anymore.

In order to use the new API, you need to create an ActivityResultLauncher in your origin Activity, specifying the callback that will be run when the destination Activity finishes and returns the desired data:

private val intentLauncher =
    registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->

        if (result.resultCode == Activity.RESULT_OK) {
            result.data?.getStringExtra("streetkey")
            result.data?.getStringExtra("citykey")
            result.data?.getStringExtra("homekey")
        }
    }

and then, launching your intent whenever you need to:

intentLauncher.launch(Intent(this, YourActivity::class.java))

And to return data from the destination Activity, you just have to add an intent with the values to return to the setResult() method:

val data = Intent()
data.putExtra("streetkey", "streetname")
data.putExtra("citykey", "cityname")
data.putExtra("homekey", "homename")

setResult(Activity.RESULT_OK, data)
finish()

For any additional information, please refer to Android Documentation

Why javascript?

http://www.instant-web-site-tools.com/html-redirect.html

<html>
<meta http-equiv="REFRESH" content="0;url=http://www.URL2.com"> 
</html>

Unless I'm missunderstanding...

In TorpedoQuery it look like this

Entity from = from(Entity.class);
where(from.getCode()).in("Joe", "Bob");
Query<Entity> select = select(from);

Use Location property of the form. Set it to the desired top left point

desired x = (desktop_width - form_witdh)/2

desired y = (desktop_height - from_height)/2

Because Dictionary is a generic class ( Dictionary<TKey, TValue> ), so that accessing its content is type-safe (i.e. you do not need to cast from Object, as you do with a Hashtable).

Compare

var customers = new Dictionary<string, Customer>();
...
Customer customer = customers["Ali G"];

to

var customers = new Hashtable();
...
Customer customer = customers["Ali G"] as Customer;

However, Dictionary is implemented as hash table internally, so technically it works the same way.

You can use a MaterialButton:

     <com.google.android.material.button.MaterialButton
            android:layout_width="48dp"
            android:layout_height="48dp"
            android:insetTop="0dp"
            android:insetBottom="0dp"
            android:text="A"
            app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.App.Rounded"
            />

and apply a circular ShapeAppearanceOverlay with:

<style name="ShapeAppearanceOverlay.App.rounded" parent="">
    <item name="cornerSize">50%</item>
</style>

So you need to use what we call promise. Read how angular handles it here, https://docs.angularjs.org/api/ng/service/$q. Turns our $http support promises inherently so in your case we'll do something like this,

(function() {
  "use strict";
  var serviceCallJson = function($http) {

      this.getCustomers = function() {
        // http method anyways returns promise so you can catch it in calling function
        return $http({
            method : 'get',
            url : '../viewersData/userPwdPair.json'
          });
      }

  }

  var validateIn = function (serviceCallJson, $q) {

      this.called = function(username, password) {
          var deferred = $q.defer(); 
          serviceCallJson.getCustomers().then( 
            function( returnedData ) {
              console.log(returnedData); // you should get output here this is a success handler
              var i = 0;
              angular.forEach(returnedData, function(value, key){
                while (i < 10) {
                  if(value[i].username == username) {
                    if(value[i].password == password) {
                     alert("Logged In");
                    }
                  }
                  i = i + 1;
                }
              });
            }, 
            function() {

              // this is error handler
            } 
          );
          return deferred.promise;  
      }

  }

  angular.module('assignment1App')
    .service ('serviceCallJson', serviceCallJson)

  angular.module('assignment1App')
  .service ('validateIn', ['serviceCallJson', validateIn])

}())

You might consider running Fiddler as a reverse proxy, you should be able to get clients to connect to Fiddler's address and then forward the requests from Fiddler to your application.

This will require either a bit of port manipulation or client config, depending on what's easier based on your requirements.

Details of how to do it are here: http://www.fiddler2.com/Fiddler/Help/ReverseProxy.asp

As a previous answer mentioned, passing the -F option to less causes it to quit if the content is less than one screen. However, after doing so, the screen is reset, and you end up not seeing the content.

The -X option does away with that behaviour. So, I use the following to enable conditional paging based on the amount of content:

git config --global --replace-all core.pager "less -F -X"

With Spring's JavaConfig mechanism, you can do it like so:

@Configuration
public class MainConfig {

    ...

    @Bean
    DataSource dataSource() {
        DataSource dataSource = null;
        JndiTemplate jndi = new JndiTemplate();
        try {
            dataSource = jndi.lookup("java:comp/env/jdbc/yourname", DataSource.class);
        } catch (NamingException e) {
            logger.error("NamingException for java:comp/env/jdbc/yourname", e);
        }
        return dataSource;
    }

}

You can also use a visual diff.

For example, if you are using Sourcetree, you can simply select any two commits in log view.

(I personally prefer using a GUI in most cases for this, and I'm posting this for those who may not be familiar with GUI options.)

In addition to Mark Proctor's answer:

If you want to keep the default styling, but have a conditional coloring on the button, just set the backgroundTint property like so:

android:backgroundTint="@drawable/styles_mybutton"

Create the associated file /res/drawable/styles_mybutton.xml, then use the following template and change the colors as per your tastes:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Disabled state-->
    <item android:state_enabled="false"
        android:color="@android:color/white">
    </item>
    <!-- Default state-->
    <item
        android:color="#cfc">
    </item>
</selector>

The Java JNI requires OS libraries of the same "bittiness" as the JVM. If you attempt to build something that depends, for example, on IESHIMS.DLL (lives in %ProgramFiles%\Internet Explorer) you need to take the 32bit version when your JVM is 32bit, the 64bit version when your JVM is 64bit. Likewise for other platforms.

Apart from that, you should be all set. The generated Java bytecode s/b the same.

Note that you should use 64bit Java compiler for larger projects because it can address more memory.

Try this ( also corrected check for upper case and lower case, it had a bug since you grouped them as [a-zA-Z] it only looks for atleast one lower or upper. So separated them out ):

(?!^[0-9]*$)(?!^[a-z]*$)(?!^[A-Z]*$)^(.{8,15})$

Update: I found that the regex doesn't really work as expected and this is not how it is supposed to be written too!

Try something like this:

(?=^.{8,15}$)(?=.*\d)(?=.*[A-Z])(?=.*[a-z])(?!.*\s).*$

(Between 8 and 15 inclusive, contains atleast one digit, atleast one upper case and atleast one lower case and no whitespace.)

And I think this is easier to understand as well.

Use the Where clause from LINQ:

List<object> x = new List<object>();
x.Add("A");
x.Add("B");
x.Add("C");
x.Add("D");
x.Add("B");

var z = x.Where(p => p == "A");
z = x.Where(p => p == "B");

In the statements above "p" is the object that is in the list. So if you used a data object, i.e.:

public class Client
{
    public string Name { get; set; }
}

then your linq would look like this:

List<Client> x = new List<Client>();
x.Add(new Client() { Name = "A" });
x.Add(new Client() { Name = "B" });
x.Add(new Client() { Name = "C" });
x.Add(new Client() { Name = "D" });
x.Add(new Client() { Name = "B" });

var z = x.Where(p => p.Name == "A");
z = x.Where(p => p.Name == "B");

Functions defined in classes (even within functions within classes) don't really pickle. However, this works:

def f(x):
    return x*x

class calculate(object):
    def run(self):
        p = Pool()
    return p.map(f, [1,2,3])

cl = calculate()
print cl.run()

tl;dr

LocalDateTime.parse( 
    "2018-01-23 01:23:45".replace( " " , "T" )  
).plusHours( 2 )

java.time

The modern approach uses the java.time classes added to Java 8, Java 9, and later.

user enters in the format YYYY-MM-DD HH:MM:SS

Parse that input string into a date-time object. Your format is close to complying with standard ISO 8601 format, used by default in the java.time classes for parsing/generating strings. To fully comply, replace the SPACE in the middle with a T.

String input = "2018-01-23 01:23:45".replace( " " , "T" ) ; // Yields: 2018-01-23T01:23:45

Parse as a LocalDateTime given that your input lacks any indicator of time zone or offset-from-UTC.

LocalDateTime ldt = LocalDateTime.parse( input ) ;

add two hours

The java.time classes can do the math for you.

LocalDateTime twoHoursLater = ldt.plusHours( 2 ) ;

Time Zone

Be aware that a LocalDateTime does not represent a moment, a point on the timeline. Without the context of a time zone or offset-from-UTC, it has no real meaning. The “Local” part of the name means any locality or no locality, rather than any one particular locality. Just saying "noon on Jan 21st" could mean noon in Auckland, New Zealand which happens several hours earlier than noon in Paris France.

To define an actual moment, you must specify a zone or offset.

ZoneId z = ZoneId.of( "Africa/Tunis" ) ;
ZonedDateTime zdt = ldt.atZone( z ) ;  // Define an actual moment, a point on the timeline by giving a context with time zone.

If you know the intended time zone for certain, apply it before adding the two hours. The LocalDateTime class assumes simple generic 24-hour days when doing the math. But in various time zones on various dates, days may be 23 or 25 hours long, or may be other lengths. So, for correct results in a zoned context, add the hours to your ZonedDateTime rather than LocalDateTime.

About java.time

The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date, Calendar, & SimpleDateFormat.

The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.

To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android, the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval, YearWeek, YearQuarter, and more.

First you need to add column for auto increment

alter table users add column id int(5) NOT NULL AUTO_INCREMENT FIRST

This query for add column at first. Now you have to reset auto increment initial value. So use this query

alter table users AUTO_INCREMENT=1001

Now your table started with 1001

Notice that '10' is the representation of the base in that base:

10 is 2(decimal) in base-2

10 is 3(decimal) in base-3

...

10 is 10(decimal) in base-10

...

10 is 16(decimal) in base-16 (hexadecimal)

...

10 is 1024(decimal) in base-1024

...and so on

DDL

Create,Alter,Drop of (Databases,Tables,Keys,Index,Views,Functions,Stored Procedures)

DML

Insert ,Delete,Update,Truncate of (Tables)

According to this article:

• JavaScript is a scripting language developed by Netscape Communications designed for developing client and server Internet applications. Netscape Navigator is designed to interpret JavaScript embedded into Web pages. JavaScript is independent of Sun Microsystem's Java language.

• Microsoft JScript is an open implementation of Netscape's JavaScript. JScript is a high-performance scripting language designed to create active online content for the World Wide Web. JScript allows developers to link and automate a wide variety of objects in Web pages, including ActiveX controls and Java programs. Microsoft Internet Explorer is designed to interpret JScript embedded into Web pages.

Use "git reset HEAD <file>..." to unstage fils

ex : to unstage all files

git reset HEAD .

to unstage one file

git reset HEAD nameFile.txt

For Sql Server 2017 and later you can use the new STRING_AGG function

https://docs.microsoft.com/en-us/sql/t-sql/functions/string-agg-transact-sql

The following example replaces null values with 'N/A' and returns the names separated by commas in a single result cell.

SELECT STRING_AGG ( ISNULL(FirstName,'N/A'), ',') AS csv 
FROM Person.Person;

Here is the result set.

John,N/A,Mike,Peter,N/A,N/A,Alice,Bob

Perhaps a more common use case is to group together and then aggregate, just like you would with SUM, COUNT or AVG.

SELECT a.articleId, title, STRING_AGG (tag, ',') AS tags 
FROM dbo.Article AS a       
LEFT JOIN dbo.ArticleTag AS t 
    ON a.ArticleId = t.ArticleId 
GROUP BY a.articleId, title;

After compiling a few answers, I've come up with the following code. What surprised me was that the timer does not get frozen on a PC (Chrome, FF) or Android Chrome - the trigger worked in the background, and the visibility check was the only reliable info.

var timestamp             = new Date().getTime();
var timerDelay              = 5000;
var processingBuffer  = 2000;

var redirect = function(url) {
  //window.location = url;
  log('ts: ' + timestamp + '; redirecting to: ' + url);
}
var isPageHidden = function() {
    var browserSpecificProps = {hidden:1, mozHidden:1, msHidden:1, webkitHidden:1};
    for (var p in browserSpecificProps) {
        if(typeof document[p] !== "undefined"){
        return document[p];
      }
    }
    return false; // actually inconclusive, assuming not
}
var elapsedMoreTimeThanTimerSet = function(){
    var elapsed = new Date().getTime() - timestamp;
  log('elapsed: ' + elapsed);
  return timerDelay + processingBuffer < elapsed;
}
var redirectToFallbackIfBrowserStillActive = function() {
  var elapsedMore = elapsedMoreTimeThanTimerSet();
  log('hidden:' + isPageHidden() +'; time: '+ elapsedMore);
  if (isPageHidden() || elapsedMore) {
    log('not redirecting');
  }else{
    redirect('appStoreUrl');
  }
}
var log = function(msg){
    document.getElementById('log').innerHTML += msg + "<br>";
}

setTimeout(redirectToFallbackIfBrowserStillActive, timerDelay);
redirect('nativeApp://');

JS Fiddle

Pandas is pretty good at dealing with data. Here is one example how to use it:

import pandas as pd

# Read the CSV into a pandas data frame (df)
#   With a df you can do many things
#   most important: visualize data with Seaborn
df = pd.read_csv('filename.csv', delimiter=',')

# Or export it in many ways, e.g. a list of tuples
tuples = [tuple(x) for x in df.values]

# or export it as a list of dicts
dicts = df.to_dict().values()

One big advantage is that pandas deals automatically with header rows.

If you haven't heard of Seaborn, I recommend having a look at it.

See also: How do I read and write CSV files with Python?

Pandas #2

import pandas as pd

# Get data - reading the CSV file
import mpu.pd
df = mpu.pd.example_df()

# Convert
dicts = df.to_dict('records')

The content of df is:

     country   population population_time    EUR
0    Germany   82521653.0      2016-12-01   True
1     France   66991000.0      2017-01-01   True
2  Indonesia  255461700.0      2017-01-01  False
3    Ireland    4761865.0             NaT   True
4      Spain   46549045.0      2017-06-01   True
5    Vatican          NaN             NaT   True

The content of dicts is

[{'country': 'Germany', 'population': 82521653.0, 'population_time': Timestamp('2016-12-01 00:00:00'), 'EUR': True},
 {'country': 'France', 'population': 66991000.0, 'population_time': Timestamp('2017-01-01 00:00:00'), 'EUR': True},
 {'country': 'Indonesia', 'population': 255461700.0, 'population_time': Timestamp('2017-01-01 00:00:00'), 'EUR': False},
 {'country': 'Ireland', 'population': 4761865.0, 'population_time': NaT, 'EUR': True},
 {'country': 'Spain', 'population': 46549045.0, 'population_time': Timestamp('2017-06-01 00:00:00'), 'EUR': True},
 {'country': 'Vatican', 'population': nan, 'population_time': NaT, 'EUR': True}]

Pandas #3

import pandas as pd

# Get data - reading the CSV file
import mpu.pd
df = mpu.pd.example_df()

# Convert
lists = [[row[col] for col in df.columns] for row in df.to_dict('records')]

The content of lists is:

[['Germany', 82521653.0, Timestamp('2016-12-01 00:00:00'), True],
 ['France', 66991000.0, Timestamp('2017-01-01 00:00:00'), True],
 ['Indonesia', 255461700.0, Timestamp('2017-01-01 00:00:00'), False],
 ['Ireland', 4761865.0, NaT, True],
 ['Spain', 46549045.0, Timestamp('2017-06-01 00:00:00'), True],
 ['Vatican', nan, NaT, True]]

The compatibility mode for Windows Xp, it's only available for the Eclipse 32 bit version and after running in this compatibility mode the icons and text will be the right size, but blurry because they are scaled from their native resolution to the screen resolution and doing so the quality is lost.

To read a whole line from a file into a string, use std::getline like so:

 std::ifstream file("my_file");
 std::string temp;
 std::getline(file, temp);

You can do this in a loop to until the end of the file like so:

 std::ifstream file("my_file");
 std::string temp;
 while(std::getline(file, temp)) {
      //Do with temp
 }

References

http://en.cppreference.com/w/cpp/string/basic_string/getline

http://en.cppreference.com/w/cpp/string/basic_string

I beleive I'm little late here. But I think this would help for the new peeps! If you're using smtp.gmail.com , then you have to do the following:

1. Turn on the less secure apps

2. You'll get the security mail in your gmail inbox, Click Yes,it's me in that.

3. Now run your code again.

It helps to make a clear distinction between the function foo, and the generator foo(n):

def foo(n):
    yield n
    yield n+1

foo is a function. foo(6) is a generator object.

The typical way to use a generator object is in a loop:

for n in foo(6):
    print(n)

The loop prints

# 6
# 7

Think of a generator as a resumable function.

yield behaves like return in the sense that values that are yielded get "returned" by the generator. Unlike return, however, the next time the generator gets asked for a value, the generator's function, foo, resumes where it left off -- after the last yield statement -- and continues to run until it hits another yield statement.

Behind the scenes, when you call bar=foo(6) the generator object bar is defined for you to have a next attribute.

You can call it yourself to retrieve values yielded from foo:

next(bar)    # Works in Python 2.6 or Python 3.x
bar.next()   # Works in Python 2.5+, but is deprecated. Use next() if possible.

When foo ends (and there are no more yielded values), calling next(bar) throws a StopInteration error.

> C:\java -X

-Xmixed           mixed mode execution (default)
-Xint             interpreted mode execution only
-Xbootclasspath:<directories and zip/jar files separated by ;>
                  set search path for bootstrap classes and resources
-Xbootclasspath/a:<directories and zip/jar files separated by ;>
                  append to end of bootstrap class path
-Xbootclasspath/p:<directories and zip/jar files separated by ;>
                  prepend in front of bootstrap class path
-Xnoclassgc       disable class garbage collection
-Xincgc           enable incremental garbage collection
-Xloggc:<file>    log GC status to a file with time stamps
-Xbatch           disable background compilation
-Xms<size>        set initial Java heap size
-Xmx<size>        set maximum Java heap size
-Xss<size>        set java thread stack size
-Xprof            output cpu profiling data
-Xfuture          enable strictest checks, anticipating future default
-Xrs              reduce use of OS signals by Java/VM (see documentation)
-Xcheck:jni       perform additional checks for JNI functions
-Xshare:off       do not attempt to use shared class data
-Xshare:auto      use shared class data if possible (default)
-Xshare:on        require using shared class data, otherwise fail.

The -X options are non-standard and subject to change without notice.

(copy-paste)

I just installed Oracle Instant Client 18_3 with the SDK. The PATH and ENV variable is set as instructed on the install page but I get the OCl.dll not found error. I searched the entire drive recursively and no such DLL exists.

So now what?

With the install instructions (not updated for 18_3) and downloads there are MISTAKES at step 13, so watch out for that.

When you create the folder structure for the downloads just write them the old way "c:\oraclient". Then when you unzip the basic, SDK and instant Client install for Windows 10_x64 extract them to "C:\oraclient\", because they all write to the same default folder. Then, when you set the ENV variable (which is no longer ORACLE_HOME, but now is OCI_LIB64) and the PATH, you will point to "C:\oraclient\instantclient_18_3".

To be sure you got it all right drill down and look for any duplicate "instantclient_18_3" folders. If you do have those cut and paste the CONTENTS to the root folder "C:\oraclient\instantclient_18_3\" folder.

Whoever works on the documentation at Oracle needs to troubleshoot better. I've seen "C:\oreclient_dir_install", "c:\oracle", "c:\oreclient" and "c:\oraclient" all mentioned as install directories, all for Windows x64 installs

BTW, install the C++ redist it helps. The 18.3 Basic package requires the Microsoft Visual Studio 2013 Redistributable.

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

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

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

I think I got there in the end.

The task is like this:

- name: Populate genders
  set_fact:
    genders: "{{ genders|default({}) | combine( {item.item.name: item.stdout} ) }}"
  with_items: "{{ people.results }}"

It loops through each of the dicts (item) in the people.results array, each time creating a new dict like {Bob: "male"}, and combine()s that new dict in the genders array, which ends up like:

{
    "Bob": "male",
    "Thelma": "female"
}

It assumes the keys (the name in this case) will be unique.

I then realised I actually wanted a list of dictionaries, as it seems much easier to loop through using with_items:

- name: Populate genders
  set_fact:
    genders: "{{ genders|default([]) + [ {'name': item.item.name, 'gender': item.stdout} ] }}"
  with_items: "{{ people.results }}"

This keeps combining the existing list with a list containing a single dict. We end up with a genders array like this:

[
    {'name': 'Bob', 'gender': 'male'},
    {'name': 'Thelma', 'gender': 'female'}
]

This is the workflow that I use at my job with the team. The scenario is as you described. First, when I'm done working on test I rebase with master to pull in whatever has been added to master during the time I've been working on the test branch.

git pull -r upstream master

This will pull the changes to master since you forked the test branch and apply them, and then apply the changes you've made to test "on top of" the current state of master. There may be conflicts here, if the other people have made changes to the same files that you've edited in test. If there are, you will have to fix them manually, and commit. Once you've done that, you'll be good to switch to the master branch and merge test in with no problems.

My way of doing this, based on the log view, only needs to modify the file app/Providers/AppServiceProvider.php:

1. Add this code into app/Providers/AppServiceProvider.php

/**
 * Bootstrap any application services.
 *
 * @return void
 */
public function boot()
{
    //
    DB::listen(function ($query) {
        $querySql = str_replace(['?'], ['\'%s\''], $query->sql);
        $queryRawSql = vsprintf($querySql, $query->bindings);
        Log::debug('[SQL EXEC]', [
                "raw sql"  => $queryRawSql,
                "time" => $query->time,
            ]
        );
    });
}

2. My sql handle code :

$users = DB::table('users')
    ->select(DB::raw('count(*) as user_count, username '))
    ->where('uid', '>=', 10)
    ->limit(100)
    ->groupBy('username')
    ->get()
;
dd($users);

3. See log storage/logs/laravel-2019-10-27.log :

[2019-10-27 17:39:17] local.DEBUG: [SQL EXEC] {"raw sql":"select count(*) as user_count, username  from `users` where `uid` >= '10' group by `username` limit 100","time":304.21} 

\l - Display database
\c - Connect to database
\dn - List schemas
\dt - List tables inside public schemas
\dt schema1. - List tables inside particular schemas. For eg: 'schema1'.

<style>
.row-2 UL LI A
{
  margin-top: 10px;  /* or whatever amount you need it to move down */
}
</style>

Your question shows you have succumbed to some of the common misconceptions surrounding table variables and temporary tables.

I have written quite an extensive answer on the DBA site looking at the differences between the two object types. This also addresses your question about disk vs memory (I didn't see any significant difference in behaviour between the two).

Regarding the question in the title though as to when to use a table variable vs a local temporary table you don't always have a choice. In functions, for example, it is only possible to use a table variable and if you need to write to the table in a child scope then only a #temp table will do (table-valued parameters allow readonly access).

Where you do have a choice some suggestions are below (though the most reliable method is to simply test both with your specific workload).

1. If you need an index that cannot be created on a table variable then you will of course need a #temporary table. The details of this are version dependant however. For SQL Server 2012 and below the only indexes that could be created on table variables were those implicitly created through a UNIQUE or PRIMARY KEY constraint. SQL Server 2014 introduced inline index syntax for a subset of the options available in CREATE INDEX. This has been extended since to allow filtered index conditions. Indexes with INCLUDE-d columns or columnstore indexes are still not possible to create on table variables however.

2. If you will be repeatedly adding and deleting large numbers of rows from the table then use a #temporary table. That supports TRUNCATE (which is more efficient than DELETE for large tables) and additionally subsequent inserts following a TRUNCATE can have better performance than those following a DELETE as illustrated here.

3. If you will be deleting or updating a large number of rows then the temp table may well perform much better than a table variable - if it is able to use rowset sharing (see "Effects of rowset sharing" below for an example).
4. If the optimal plan using the table will vary dependent on data then use a #temporary table. That supports creation of statistics which allows the plan to be dynamically recompiled according to the data (though for cached temporary tables in stored procedures the recompilation behaviour needs to be understood separately).
5. If the optimal plan for the query using the table is unlikely to ever change then you may consider a table variable to skip the overhead of statistics creation and recompiles (would possibly require hints to fix the plan you want).
6. If the source for the data inserted to the table is from a potentially expensive SELECT statement then consider that using a table variable will block the possibility of this using a parallel plan.
7. If you need the data in the table to survive a rollback of an outer user transaction then use a table variable. A possible use case for this might be logging the progress of different steps in a long SQL batch.
8. When using a #temp table within a user transaction locks can be held longer than for table variables (potentially until the end of transaction vs end of statement dependent on the type of lock and isolation level) and also it can prevent truncation of the tempdb transaction log until the user transaction ends. So this might favour the use of table variables.
9. Within stored routines, both table variables and temporary tables can be cached. The metadata maintenance for cached table variables is less than that for #temporary tables. Bob Ward points out in his tempdb presentation that this can cause additional contention on system tables under conditions of high concurrency. Additionally, when dealing with small quantities of data this can make a measurable difference to performance.

Effects of rowset sharing

DECLARE @T TABLE(id INT PRIMARY KEY, Flag BIT);

CREATE TABLE #T (id INT PRIMARY KEY, Flag BIT);

INSERT INTO @T 
output inserted.* into #T
SELECT TOP 1000000 ROW_NUMBER() OVER (ORDER BY @@SPID), 0
FROM master..spt_values v1, master..spt_values v2

SET STATISTICS TIME ON

/*CPU time = 7016 ms,  elapsed time = 7860 ms.*/
UPDATE @T SET Flag=1;

/*CPU time = 6234 ms,  elapsed time = 7236 ms.*/
DELETE FROM @T

/* CPU time = 828 ms,  elapsed time = 1120 ms.*/
UPDATE #T SET Flag=1;

/*CPU time = 672 ms,  elapsed time = 980 ms.*/
DELETE FROM #T

DROP TABLE #T

Hope the following demo can help you out.

$(function() {_x000D_
  $("button").on('click', function() {_x000D_
    var data = "";_x000D_
    var tableData = [];_x000D_
    var rows = $("table tr");_x000D_
    rows.each(function(index, row) {_x000D_
      var rowData = [];_x000D_
      $(row).find("th, td").each(function(index, column) {_x000D_
        rowData.push(column.innerText);_x000D_
      });_x000D_
      tableData.push(rowData.join(","));_x000D_
    });_x000D_
    data += tableData.join("\n");_x000D_
    $(document.body).append('<a id="download-link" download="data.csv" href=' + URL.createObjectURL(new Blob([data], {_x000D_
      type: "text/csv"_x000D_
    })) + '/>');_x000D_
_x000D_
_x000D_
    $('#download-link')[0].click();_x000D_
    $('#download-link').remove();_x000D_
  });_x000D_
});

table {_x000D_
  border-collapse: collapse;_x000D_
}_x000D_
_x000D_
td,_x000D_
th {_x000D_
  border: 1px solid #aaa;_x000D_
  padding: 0.5rem;_x000D_
  text-align: left;_x000D_
}_x000D_
_x000D_
td {_x000D_
  font-size: 0.875rem;_x000D_
}_x000D_
_x000D_
.btn-group {_x000D_
  padding: 1rem 0;_x000D_
}_x000D_
_x000D_
button {_x000D_
  background-color: #fff;_x000D_
  border: 1px solid #000;_x000D_
  margin-top: 0.5rem;_x000D_
  border-radius: 3px;_x000D_
  padding: 0.5rem 1rem;_x000D_
  font-size: 1rem;_x000D_
}_x000D_
_x000D_
button:hover {_x000D_
  cursor: pointer;_x000D_
  background-color: #000;_x000D_
  color: #fff;_x000D_
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
_x000D_
<div id='PrintDiv'>_x000D_
  <table id="mainTable">_x000D_
    <tr>_x000D_
      <td>Col1</td>_x000D_
      <td>Col2</td>_x000D_
      <td>Col3</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>Val1</td>_x000D_
      <td>Val2</td>_x000D_
      <td>Val3</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>Val11</td>_x000D_
      <td>Val22</td>_x000D_
      <td>Val33</td>_x000D_
    </tr>_x000D_
    <tr>_x000D_
      <td>Val111</td>_x000D_
      <td>Val222</td>_x000D_
      <td>Val333</td>_x000D_
    </tr>_x000D_
  </table>_x000D_
</div>_x000D_
_x000D_
<div class="btn-group">_x000D_
  <button>csv</button>_x000D_
</div>

use the following

select sum(transaction_amount) from TransactionMaste
where Card_No = '123' and transaction_date = CONVERT(VARCHAR(10),GETDATE(),111)

or the following

select sum(transaction_amount) from TransactionMaste
where Card_No = '123' and transaction_date = CONVERT(VARCHAR(10), GETDATE(), 120)

For me the issue was the IP address that charles was telling me to route to in my proxy settings was incorrect. To solve I ended up going to ifconfig in the terminal and the trying the different IP addresses (listed next to inet) at port 8888 for the current active connections

If you try pasting into Word-Pad, Notepad++ or Word you wouldn't have this issue. To copy the cell value as pure text, to achieve what you describe you have to use a macro:

In the workbook where you want this to apply (or in your Personal.xls if you want to use across several workbooks), place the following code in a standard module:

Code:

Sub CopyCellContents()
'create a reference in the VBE to Microsft Forms 2.0 Lib
' do this by (in VBA editor) clicking tools - > references and then ticking "Microsoft Forms 2.0 Library"
Dim objData As New DataObject
Dim strTemp As String
strTemp = ActiveCell.Value
objData.SetText (strTemp)
objData.PutInClipboard
End Sub

To add a standard module to your project (workbook), open up the VBE with Alt+F11 and then right-click on your workbook in the top left Project Window and select Insert>Module. Paste the code into the code module window which will open on the right.

Back in Excel, go Tools>Macro>Macros and select the macro called "CopyCellContents" and then choose Options from the dialog. Here you can assign the macro to a shortcut key (eg like CTRL+C for normal copy) - I used CTRL+Q.

Then, when you want to copy a single cell over to Notepad/wherever, just do Ctrl+q (or whatever you chose) and then do a CTRL+V or Edit>Paste in your chosen destination.

My answer is copied (with a few additions) from: here

EDIT: (from comments)

If you don't find Microsoft Forms 2.0 Library in the references list, You can try

• looking for FM20.DLL instead (thanks @Peter Smallwood)
• clicking Browse and selecting C:\Windows\System32\FM20.dll (32 bit Windows) (thanks @JWhy)
• clicking Browse and selecting C:\Windows\SysWOW64\FM20.dll (on 64-bit)

Most of the answers are correct but I want to add little more. The ternary operator is right-associative, which means it can be chained in the following way if … else-if … else-if … else :

function example() {
    return condition1 ? value1
         : condition2 ? value2
         : condition3 ? value3
         : value4;
}

Equivalent to:

function example() {
    if (condition1) { return value1; }
    else if (condition2) { return value2; }
    else if (condition3) { return value3; }
    else { return value4; }
}

More details is here

You can get MinGW (as others have suggested) but I would recommend getting a simple IDE (not VS Express). You can try Dev C++ http://www.bloodshed.net/devcpp.html Its a simple IDE for C/C++ and uses MinGW internally. In this you can write and compile single C files without creating a full-blown "project".

Cast the operands to floats:

float ans = (float)a / (float)b;

Use pd.to_numeric with errors='coerce'

# Setup
s = pd.Series(['1', '2', '3', '4', '.'])
s

0    1
1    2
2    3
3    4
4    .
dtype: object

pd.to_numeric(s, errors='coerce')

0    1.0
1    2.0
2    3.0
3    4.0
4    NaN
dtype: float64

If you need the NaNs filled in, use Series.fillna.

pd.to_numeric(s, errors='coerce').fillna(0, downcast='infer')

0    1
1    2
2    3
3    4
4    0
dtype: float64

Note, downcast='infer' will attempt to downcast floats to integers where possible. Remove the argument if you don't want that.

From v0.24+, pandas introduces a Nullable Integer type, which allows integers to coexist with NaNs. If you have integers in your column, you can use

pd.__version__
# '0.24.1'

pd.to_numeric(s, errors='coerce').astype('Int32')

0      1
1      2
2      3
3      4
4    NaN
dtype: Int32

There are other options to choose from as well, read the docs for more.

Extension for DataFrames

If you need to extend this to DataFrames, you will need to apply it to each row. You can do this using DataFrame.apply.

# Setup.
np.random.seed(0)
df = pd.DataFrame({
    'A' : np.random.choice(10, 5), 
    'C' : np.random.choice(10, 5), 
    'B' : ['1', '###', '...', 50, '234'], 
    'D' : ['23', '1', '...', '268', '$$']}
)[list('ABCD')]
df

   A    B  C    D
0  5    1  9   23
1  0  ###  3    1
2  3  ...  5  ...
3  3   50  2  268
4  7  234  4   $$

df.dtypes

A     int64
B    object
C     int64
D    object
dtype: object

df2 = df.apply(pd.to_numeric, errors='coerce')
df2

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

df2.dtypes

A      int64
B    float64
C      int64
D    float64
dtype: object

You can also do this with DataFrame.transform; although my tests indicate this is marginally slower:

df.transform(pd.to_numeric, errors='coerce')

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

If you have many columns (numeric; non-numeric), you can make this a little more performant by applying pd.to_numeric on the non-numeric columns only.

df.dtypes.eq(object)

A    False
B     True
C    False
D     True
dtype: bool

cols = df.columns[df.dtypes.eq(object)]
# Actually, `cols` can be any list of columns you need to convert.
cols
# Index(['B', 'D'], dtype='object')

df[cols] = df[cols].apply(pd.to_numeric, errors='coerce')
# Alternatively,
# for c in cols:
#     df[c] = pd.to_numeric(df[c], errors='coerce')

df

   A      B  C      D
0  5    1.0  9   23.0
1  0    NaN  3    1.0
2  3    NaN  5    NaN
3  3   50.0  2  268.0
4  7  234.0  4    NaN

Applying pd.to_numeric along the columns (i.e., axis=0, the default) should be slightly faster for long DataFrames.

Safety check to only select if an item is matched.

//try to find item in list.  
ListItem oItem = DDL.Items.FindByValue("PassedValue"));
//if exists, select it.
if (oItem != null) oItem.Selected = true;

Until PHP 5.3, const could not be used in the global scope. You could only use this from within a class. This should be used when you want to set some kind of constant option or setting that pertains to that class. Or maybe you want to create some kind of enum.

define can be used for the same purpose, but it can only be used in the global scope. It should only be used for global settings that affect the entire application.

An example of good const usage is to get rid of magic numbers. Take a look at PDO's constants. When you need to specify a fetch type, you would type PDO::FETCH_ASSOC, for example. If consts were not used, you'd end up typing something like 35 (or whatever FETCH_ASSOC is defined as). This makes no sense to the reader.

An example of good define usage is maybe specifying your application's root path or a library's version number.

$("#selector <b>></b> option:selected").val()

Or

$("#selector <b>></b> option:selected").text()

Above codes worked well for me

Nor Kelsey, nor Brendan solutions does not works for me in Visual Studio 2015 Community.

Here is my brief steps how to create service with installer:

1. Run Visual Studio, Go to File->New->Project
2. Select .NET Framework 4, in 'Search Installed Templates' type 'Service'
3. Select 'Windows Service'. Type Name and Location. Press OK.
4. Double click Service1.cs, right click in designer and select 'Add Installer'
5. Double click ProjectInstaller.cs. For serviceProcessInstaller1 open Properties tab and change 'Account' property value to 'LocalService'. For serviceInstaller1 change 'ServiceName' and set 'StartType' to 'Automatic'.

6. Double click serviceInstaller1. Visual Studio creates serviceInstaller1_AfterInstall event. Write code:

   private void serviceInstaller1_AfterInstall(object sender, InstallEventArgs e)
   {
       using (System.ServiceProcess.ServiceController sc = new 
       System.ServiceProcess.ServiceController(serviceInstaller1.ServiceName))
       {
           sc.Start();
       }
   }
   

7. Build solution. Right click on project and select 'Open Folder in File Explorer'. Go to bin\Debug.

8. Create install.bat with below script:

   :::::::::::::::::::::::::::::::::::::::::
   :: Automatically check & get admin rights
   :::::::::::::::::::::::::::::::::::::::::
   @echo off
   CLS 
   ECHO.
   ECHO =============================
   ECHO Running Admin shell
   ECHO =============================
   
   :checkPrivileges 
   NET FILE 1>NUL 2>NUL
   if '%errorlevel%' == '0' ( goto gotPrivileges ) else ( goto getPrivileges ) 
   
   :getPrivileges 
   if '%1'=='ELEV' (shift & goto gotPrivileges)  
   ECHO. 
   ECHO **************************************
   ECHO Invoking UAC for Privilege Escalation 
   ECHO **************************************
   
   setlocal DisableDelayedExpansion
   set "batchPath=%~0"
   setlocal EnableDelayedExpansion
   ECHO Set UAC = CreateObject^("Shell.Application"^) > "%temp%\OEgetPrivileges.vbs" 
   ECHO UAC.ShellExecute "!batchPath!", "ELEV", "", "runas", 1 >> "%temp%\OEgetPrivileges.vbs" 
   "%temp%\OEgetPrivileges.vbs" 
   exit /B 
   
   :gotPrivileges 
   ::::::::::::::::::::::::::::
   :START
   ::::::::::::::::::::::::::::
   setlocal & pushd .
   
   cd /d %~dp0
   %windir%\Microsoft.NET\Framework\v4.0.30319\InstallUtil /i "WindowsService1.exe"
   pause
   

9. Create uninstall.bat file (change in pen-ult line /i to /u)
10. To install and start service run install.bat, to stop and uninstall run uninstall.bat

You can't specify inline styles for pseudo-elements.

This is because pseudo-elements, like pseudo-classes (see my answer to this other question), are defined in CSS using selectors as abstractions of the document tree that can't be expressed in HTML. An inline style attribute, on the other hand, is specified within HTML for a particular element.

Since inline styles can only occur in HTML, they will only apply to the HTML element that they're defined on, and not to any pseudo-elements it generates.

As an aside, the main difference between pseudo-elements and pseudo-classes in this aspect is that properties that are inherited by default will be inherited by :before and :after from the generating element, whereas pseudo-class styles just don't apply at all. In your case, for example, if you place text-align: justify in an inline style attribute for a td element, it will be inherited by td:after. The caveat is that you can't declare td:after with the inline style attribute; you must do it in the stylesheet.

So after correcting my code to:

options = webdriver.ChromeOptions()
options.add_experimental_option("excludeSwitches",["ignore-certificate-errors"])
options.add_argument('--disable-gpu')
options.add_argument('--headless')
chrome_driver_path = "C:\Python27\Scripts\chromedriver.exe"

The .exe file still came up when running the script. Although this did get rid of some extra output telling me "Failed to launch GPU process".

What ended up working is running my Python script using a .bat file

So basically,

1. Save python script if a folder

2. Open text editor, and dump the following code (edit to your script of course)

   c:\python27\python.exe c:\SampleFolder\ThisIsMyScript.py %*

3. Save the .txt file and change the extension to .bat

4. Double click this to run the file

So this just opened the script in Command Prompt and ChromeDriver seems to be operating within this window without popping out to the front of my screen and thus solving the problem.

You can use the google docs OCR reader.

Try this, should work.

val list = List(1,2,4,2,4,7,3,2,4)
list.count(_==2) 

It will return 3

In case you have to replace multiple values and if you don't mind "refactoring" your variable with as.factor(as.character(...)) you could try the following:

replace.values <- function(search, replace, x){
  stopifnot(length(search) == length(replace))
  xnew <- replace[ match(x, search) ]
  takeOld <- is.na(xnew) & !is.na(x)
  xnew[takeOld] <- x[takeOld]
  return(xnew)
}

iris$Species <- as.factor(search=c("oldValue1","oldValue2"),
                          replace=c("newValue1","newValue2"),
                          x=as.character(iris$Species))

Please add these 2 simple line of code:

self.YourViewName.layer.cornerRadius = 15
self.YourViewName.layer.masksToBounds = true

It will work fine.

I'm using xdebug for watch this values in VSCode with the respective extension and CI v2.x. I add the expresion $this->db->last_query() in the watch section, and I add xdebugSettings node like these lines for get non truncate value in the launch.json.

{
  "name": "Launch currently open script",
  "type": "php",
  "request": "launch",
  "program": "${file}",
  "cwd": "${fileDirname}",
  "port": 9000,
  "xdebugSettings": {
    "max_data": -1,
    "max_children": -1
  }
},

And run my debuger with the breakpoint and finally just select my expresion and do click right > copy value.

After you parse it with Javascript, try this:

mandrill_events[0].event

Take a look at strtol(), if you're using the C standard library.

Use

YourCommaSeparatedString.split(',');

Old question, but I'd like to add something: when calling doPostBack() you can use the server handler method for the action.

For an example:

__doPostBack('<%= btn.UniqueID%>', 'my args');

Will fire, on server:

protected void btn_Click(object sender, EventArgs e)

I didn't find a better way to get the argument, so I'm still using Request["__EVENTARGUMENT"].

You can also use Js2Py which is written in pure python and is able to both execute and translate javascript to python. Supports virtually whole JavaScript even labels, getters, setters and other rarely used features.

import js2py

js = """
function escramble_758(){
var a,b,c
a='+1 '
b='84-'
a+='425-'
b+='7450'
c='9'
document.write(a+c+b)
}
escramble_758()
""".replace("document.write", "return ")

result = js2py.eval_js(js)  # executing JavaScript and converting the result to python string 

Advantages of Js2Py include portability and extremely easy integration with python (since basically JavaScript is being translated to python).

To install:

pip install js2py

EDIT: Use stej's answer below. My own (partially incorrect) one is still reproduced here for reference:

You can use

Get-Variable foo -Scope Global

and trap the error that is raised when the variable doesn't exist.

Lazy Set

VARIABLE = value

Normal setting of a variable, but any other variables mentioned with the value field are recursively expanded with their value at the point at which the variable is used, not the one it had when it was declared

Immediate Set

VARIABLE := value

Setting of a variable with simple expansion of the values inside - values within it are expanded at declaration time.

Lazy Set If Absent

VARIABLE ?= value

Setting of a variable only if it doesn't have a value. value is always evaluated when VARIABLE is accessed. It is equivalent to

ifeq ($(origin FOO), undefined)
  FOO = bar
endif

See the documentation for more details.

Append

VARIABLE += value

Appending the supplied value to the existing value (or setting to that value if the variable didn't exist)

If you are having trouble tracing the definitions, you can use the preprocessed output of the compiler which will tell you all you need to know. E.g.

$ cat test.c
#include <stdio.h>
$ cc -E test.c | grep off_t
typedef long int __off_t;
typedef __off64_t __loff_t;
  __off_t __pos;
  __off_t _old_offset;
typedef __off_t off_t;
extern int fseeko (FILE *__stream, __off_t __off, int __whence);
extern __off_t ftello (FILE *__stream) ;

If you look at the complete output you can even see the exact header file location and line number where it was defined:

# 132 "/usr/include/bits/types.h" 2 3 4


typedef unsigned long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned long int __nlink_t;
typedef long int __off_t;
typedef long int __off64_t;

...

# 91 "/usr/include/stdio.h" 3 4
typedef __off_t off_t;

I use something like this...

#include <algorithm>


template <typename T> 
const bool Contains( std::vector<T>& Vec, const T& Element ) 
{
    if (std::find(Vec.begin(), Vec.end(), Element) != Vec.end())
        return true;

    return false;
}

if (Contains(vector,item))
   blah
else
   blah

...as that way it's actually clear and readable. (Obviously you can reuse the template in multiple places).

You can simply specify a series of images like this:

\includegraphics<1>{A}
\includegraphics<2>{B}
\includegraphics<3>{C}

This will produce three slides with the images A to C in exactly the same position.

This string.split("~")[0]; gets things done.

source: String.prototype.split()

Another functional approach using curry and function composition.

So the first thing would be the split function. We want to make this "john smith~123 Street~Apt 4~New York~NY~12345" into this ["john smith", "123 Street", "Apt 4", "New York", "NY", "12345"]

const split = (separator) => (text) => text.split(separator);
const splitByTilde = split('~');

So now we can use our specialized splitByTilde function. Example:

splitByTilde("john smith~123 Street~Apt 4~New York~NY~12345") // ["john smith", "123 Street", "Apt 4", "New York", "NY", "12345"]

To get the first element we can use the list[0] operator. Let's build a first function:

const first = (list) => list[0];

The algorithm is: split by the colon and then get the first element of the given list. So we can compose those functions to build our final getName function. Building a compose function with reduce:

const compose = (...fns) => (value) => fns.reduceRight((acc, fn) => fn(acc), value);

And now using it to compose splitByTilde and first functions.

const getName = compose(first, splitByTilde);

let string = 'john smith~123 Street~Apt 4~New York~NY~12345';
getName(string); // "john smith"

Since this is one of the top search results for questions related to this I felt it was worth mentioning how you can make this work with Kendo().DropDownListFor() as well.

Everything is the same as with OnaBai's post except for how you select the item based off of its text and your selector.

To do that you would swap out dataItem.symbol for dataItem.[DataTextFieldName]. Whatever model field you used for .DataTextField() is what you will be comparing against.

@(Html.Kendo().DropDownListFor(model => model.Status.StatusId)
    .Name("Status.StatusId")
    .DataTextField("StatusName")
    .DataValueField("StatusId")
    .BindTo(...)
)

//So that your ViewModel gets bound properly on the post, naming is a bit 
//different and as such you need to replace the periods with underscores
var ddl = $('#Status_StatusId').data('kendoDropDownList');    

ddl.select(function(dataItem) {
    return dataItem.StatusName === "Active";
});

For only android API (Android Pie)28 and +

// ImageView from layout
val ima : ImageView = findViewById(R.id.img_gif)
// create AnimatedDrawable 
val decodedAnimation = ImageDecoder.decodeDrawable(
        // create ImageDecoder.Source object
        ImageDecoder.createSource(resources, R.drawable.tenor))
// set the drawble as image source of ImageView
ima.setImageDrawable(decodedAnimation)
// play the animation
(decodedAnimation as? AnimatedImageDrawable)?.start()

XML code, add a ImageView

<ImageView
    android:id="@+id/img_gif"
    android:background="@drawable/ic_launcher_background" <!--Default background-->
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    android:layout_width="200dp"
    android:layout_height="200dp" />

AnimatedImageDrawable is a child of Drawable and created by ImageDecoder.decodeDrawable

ImageDecoder.decodeDrawable which further required the instance of ImageDecoder.Source created by ImageDecoder.createSource.

ImageDecoder.createSource can only take source as a name, ByteBuffer, File, resourceId, URI, ContentResolver to create source object and uses it to create AnimatedImageDrawable as Drawable (polymorphic call)

static ImageDecoder.Source  createSource(AssetManager assets, String fileName)
static ImageDecoder.Source  createSource(ByteBuffer buffer)
static ImageDecoder.Source  createSource(File file)
static ImageDecoder.Source  createSource(Resources res, int resId)
static ImageDecoder.Source  createSource(ContentResolver cr, Uri uri)

Note: You can also create Bitmap using ImageDecoder#decodeBitmap.

Output:

AnimatedDrawable also supports resizing, frame and color manipulation

There is a RawFormat property of Image parameter which returns the file format of the image. You might try the following:

// extension method
public static byte[] imageToByteArray(this System.Drawing.Image image)
{
    using(var ms = new MemoryStream())
    {
        image.Save(ms, image.RawFormat);
        return ms.ToArray();
    }
}

I don't think "have HTTPS connections over proxy servers" means the Man-in-the-Middle attack type of proxy server. I think it's asking whether one can connect to a http proxy server over TLS. And the answer is yes.

Is it possible to have HTTPS connections over proxy servers?

Yes, see my question and answer here. HTTPs proxy server only works in SwitchOmega

If yes, what kind of proxy server allows this?

The kind of proxy server deploys SSL certificates, like how ordinary websites do. But you need a pac file for the brower to configure proxy connection over SSL.

This should do it:

<style>
body {
    background:url(bg.jpg) fixed no-repeat bottom right;
}
</style>

http://www.w3schools.com/cssref/pr_background-position.asp

See the following code, subtract the days from the current date. Also, set the month according to substracted date.

var today = new Date();
var substract_no_of_days = 25;

today.setTime(today.getTime() - substract_no_of_days* 24 * 60 * 60 * 1000);
var substracted_date = (today.getMonth()+1) + "/" +today.getDate() + "/" + today.getFullYear();

alert(substracted_date);

Use JavaScript Cookie plugin

Set a cookie

Cookies.set("example", "foo"); // Sample 1
Cookies.set("example", "foo", { expires: 7 }); // Sample 2
Cookies.set("example", "foo", { path: '/admin', expires: 7 }); // Sample 3

Get a cookie

alert( Cookies.get("example") );

Delete the cookie

Cookies.remove("example");
Cookies.remove('example', { path: '/admin' }) // Must specify path if used when setting.

You can also achieve this by Turning windows feature ON.

Specify complete path and grant proper permission to scriptfile. I tried following script file to run through cron:

#!/bin/bash
/bin/mkdir /scratch/ofsaaweb/CHEF_FICHOME/ficdb/bin/crondir

And crontab command is

* * * * * /bin/bash /scratch/ofsaaweb/CHEF_FICHOME/ficdb/bin/test.sh

It worked for me.

Hive Partitioning:

Partition divides large amount of data into multiple slices based on value of a table column(s).

Assume that you are storing information of people in entire world spread across 196+ countries spanning around 500 crores of entries. If you want to query people from a particular country (Vatican city), in absence of partitioning, you have to scan all 500 crores of entries even to fetch thousand entries of a country. If you partition the table based on country, you can fine tune querying process by just checking the data for only one country partition. Hive partition creates a separate directory for a column(s) value.

Pros:

1. Distribute execution load horizontally
2. Faster execution of queries in case of partition with low volume of data. e.g. Get the population from "Vatican city" returns very fast instead of searching entire population of world.

Cons:

1. Possibility of too many small partition creations - too many directories.
2. Effective for low volume data for a given partition. But some queries like group by on high volume of data still take long time to execute. e.g. Grouping of population of China will take long time compared to grouping of population in Vatican city. Partition is not solving responsiveness problem in case of data skewing towards a particular partition value.

Hive Bucketing:

Bucketing decomposes data into more manageable or equal parts.

With partitioning, there is a possibility that you can create multiple small partitions based on column values. If you go for bucketing, you are restricting number of buckets to store the data. This number is defined during table creation scripts.

Pros

1. Due to equal volumes of data in each partition, joins at Map side will be quicker.
2. Faster query response like partitioning

Cons

1. You can define number of buckets during table creation but loading of equal volume of data has to be done manually by programmers.

If using Suexec, ensure that the script and its directory are owned by the same user you specified in suexec.

In addition, ensure that the user running the cgi script has permissions execute permissions to the file AND the program specified in the shebang.

For example if my cgi script starts with

#! /usr/bin/cgirunner

Then the user needs permissions to execute /usr/bin/cgirunner.

Updated 2017-12-16

I was not sure about the tests in OP. I decided to experiment a little and ended up busting some of the myths.

Synchronous <script src...> will block downloading of the resources below it until it is downloaded and executed

This is no longer true. Have a look at the waterfall generated by Chrome 63:

<head>
<script src="//alias-0.redacted.com/payload.php?type=js&amp;delay=333&amp;rand=1"></script>
<script src="//alias-1.redacted.com/payload.php?type=js&amp;delay=333&amp;rand=2"></script>
<script src="//alias-2.redacted.com/payload.php?type=js&amp;delay=333&amp;rand=3"></script>
</head>

<link rel=stylesheet> will not block download and execution of scripts below it

This is incorrect. The stylesheet will not block download but it will block execution of the script (little explanation here). Have a look at performance chart generated by Chrome 63:

<link href="//alias-0.redacted.com/payload.php?type=css&amp;delay=666" rel="stylesheet">
<script src="//alias-1.redacted.com/payload.php?type=js&amp;delay=333&amp;block=1000"></script>

Keeping the above in mind, the results in OP can be explained as follows:

CSS First:

CSS Download  500ms:<------------------------------------------------>
JS Download   400ms:<-------------------------------------->
JS Execution 1000ms:                                                  <-------------------------------------------------------------------------------------------------->
DOM Ready   @1500ms:                                                                                                                                                      ?

JS First:

JS Download   400ms:<-------------------------------------->
CSS Download  500ms:<------------------------------------------------>
JS Execution 1000ms:                                        <-------------------------------------------------------------------------------------------------->
DOM Ready   @1400ms:                                                                                                                                            ?

The line onclick = writeLED(1,1) means that you want to immediately execute the function writeLED(arg1, arg2) with arguments 1, 1 and assign the return value; you need to instead create a function that will execute with those arguments and assign that. The topmost answer gave one example - another is to use the bind() function like so:

    var writeLEDWithSpecifiedArguments = writeLED.bind(this, 1,1);
    document.getElementById('buttonLED'+id).onclick = writeLEDWithSpecifiedArguments;

This can be done through the youtube player API:

http://jsfiddle.net/7Gznb/

Working example:

    <div id="player"></div>

    <script src="http://www.youtube.com/player_api"></script>

    <script>

        // create youtube player
        var player;
        function onYouTubePlayerAPIReady() {
            player = new YT.Player('player', {
              width: '640',
              height: '390',
              videoId: '0Bmhjf0rKe8',
              events: {
                onReady: onPlayerReady,
                onStateChange: onPlayerStateChange
              }
            });
        }

        // autoplay video
        function onPlayerReady(event) {
            event.target.playVideo();
        }

        // when video ends
        function onPlayerStateChange(event) {        
            if(event.data === 0) {          
                alert('done');
            }
        }

    </script>

When would you use private and when would you use protected?

Private Inheritance can be thought of Implemented in terms of relationship rather than a IS-A relationship. Simply put, the external interface of the inheriting class has no (visible) relationship to the inherited class, It uses the private inheritance only to implement a similar functionality which the Base class provides.

Unlike, Private Inheritance, Protected inheritance is a restricted form of Inheritance,wherein the deriving class IS-A kind of the Base class and it wants to restrict the access of the derived members only to the derived class.

You could create a new repo with

git init 

and then use

git fetch url-to-repo branchname:refs/remotes/origin/branchname

to fetch just that one branch into a local remote-tracking branch.

INSERT statements that use VALUES syntax can insert multiple rows. To do this, include multiple lists of column values, each enclosed within parentheses and separated by commas.

Example:

INSERT INTO tbl_name
    (a,b,c)
VALUES
    (1,2,3),
    (4,5,6),
    (7,8,9);

Source

This works for me on Mac:

Right click on the project, select Configure ? Convert to Maven Project.

describe [db_name.]table_name;

for formatted output, or

show create table [db_name.]table_name;

for the SQL statement that can be used to create a table.

It could be something like:

var qry = from t in db.Lasttraces
          group t by t.AccountId into g
          orderby t.Date
          select new { g.AccountId, Date = g.Max(e => e.Date) };

In your Dockerfile, run this first:

apt-get update && apt-get install -y gnupg2

To summarize the information found after the link: The JVM allocates the amount specified by -Xms but the OS usually does not allocate real pages until they are needed. So the JVM allocates virtual memory as specified by Xms but only allocates physical memory as is needed.

You can see this by using Process Explorer by Sysinternals instead of task manager on windows.

So there is a real difference between using -Xms64M and -Xms512M. But I think the most important difference is the one you already pointed out: the garbage collector will run more often if you really need the 512MB but only started with 64MB.

If you are on Windows, you can use the CreateThreadpoolTimer function to schedule a callback without needing to worry about thread management and without blocking the current thread.

template<typename T>
static void __stdcall timer_fired(PTP_CALLBACK_INSTANCE, PVOID context, PTP_TIMER timer)
{
    CloseThreadpoolTimer(timer);
    std::unique_ptr<T> callable(reinterpret_cast<T*>(context));
    (*callable)();
}

template <typename T>
void call_after(T callable, long long delayInMs)
{
    auto state = std::make_unique<T>(std::move(callable));
    auto timer = CreateThreadpoolTimer(timer_fired<T>, state.get(), nullptr);
    if (!timer)
    {
        throw std::runtime_error("Timer");
    }

    ULARGE_INTEGER due;
    due.QuadPart = static_cast<ULONGLONG>(-(delayInMs * 10000LL));

    FILETIME ft;
    ft.dwHighDateTime = due.HighPart;
    ft.dwLowDateTime = due.LowPart;

    SetThreadpoolTimer(timer, &ft, 0 /*msPeriod*/, 0 /*msWindowLength*/);
    state.release();
}

int main()
{
    auto callback = []
    {
        std::cout << "in callback\n";
    };

    call_after(callback, 1000);
    std::cin.get();
}

For jquery-ui-dragable with jquery-ui-touch-punch I fixed it similar to Iván Rodríguez, but with one more event override for touchmove:

jQuery.event.special.touchstart = {
    setup: function( _, ns, handle ) {
        this.addEventListener('touchstart', handle, { passive: !ns.includes('noPreventDefault') });
    }
};
jQuery.event.special.touchmove = {
    setup: function( _, ns, handle ) {
        this.addEventListener('touchmove', handle, { passive: !ns.includes('noPreventDefault') });
    }
};

If you only want to check version for only one, you can do

composer show -- twig/twig

Note that only installed packages are shown by default now, and installed option is now deprecated.

Many good answers here! I consolidated them into one answer and updated some of the code for a more modern syntax:

One-liners inspired by Fawad Ghafoor and Óscar Gómez Alcañiz

function transpose(matrix) {
  return matrix[0].map((col, i) => matrix.map(row => row[i]));
}

function transpose(matrix) {
  return matrix[0].map((col, c) => matrix.map((row, r) => matrix[r][c]));
}

Functional approach style with reduce by Andrew Tatomyr

function transpose(matrix) {
  return matrix.reduce((prev, next) => next.map((item, i) =>
    (prev[i] || []).concat(next[i])
  ), []);
}

Lodash/Underscore by marcel

function tranpose(matrix) {
  return _.zip(...matrix);
}

// Without spread operator.
function transpose(matrix) {
  return _.zip.apply(_, [[1,2,3], [1,2,3], [1,2,3]])
}

Vanilla approach

function transpose(matrix) {
  const rows = matrix.length, cols = matrix[0].length;
  const grid = [];
  for (let j = 0; j < cols; j++) {
    grid[j] = Array(rows);
  }
  for (let i = 0; i < rows; i++) {
    for (let j = 0; j < cols; j++) {
      grid[j][i] = matrix[i][j];
    }
  }
  return grid;
}

Vanilla in-place ES6 approach inspired by Emanuel Saringan

function transpose(matrix) {
  for (var i = 0; i < matrix.length; i++) {
    for (var j = 0; j < i; j++) {
      const temp = matrix[i][j];
      matrix[i][j] = matrix[j][i];
      matrix[j][i] = temp;
    }
  }
}

// Using destructing
function transpose(matrix) {
  for (var i = 0; i < matrix.length; i++) {
    for (var j = 0; j < i; j++) {
      [matrix[i][j], matrix[j][i]] = [matrix[j][i], matrix[i][j]];
    }
  }
}

For Writing Excel

• PEAR's PHP_Excel_Writer (xls only)
• php_writeexcel from Bettina Attack (xls only)
• XLS File Generator commercial and xls only
• Excel Writer for PHP from Sourceforge (spreadsheetML only)
• Ilia Alshanetsky's Excel extension now on github (xls and xlsx, and requires commercial libXL component)
• PHP's COM extension (requires a COM enabled spreadsheet program such as MS Excel or OpenOffice Calc running on the server)
• The Open Office alternative to COM (PUNO) (requires Open Office installed on the server with Java support enabled)
• PHP-Export-Data by Eli Dickinson (Writes SpreadsheetML - the Excel 2003 XML format, and CSV)
• Oliver Schwarz's php-excel (SpreadsheetML)
• Oliver Schwarz's original version of php-excel (SpreadsheetML)
• excel_xml (SpreadsheetML, despite its name)... link reported as broken
• The tiny-but-strong (tbs) project includes the OpenTBS tool for creating OfficeOpenXML documents (OpenDocument and OfficeOpenXML formats)
• SimpleExcel Claims to read and write Microsoft Excel XML / CSV / TSV / HTML / JSON / etc formats
• KoolGrid xls spreadsheets only, but also doc and pdf
• PHP_XLSXWriter OfficeOpenXML
• PHP_XLSXWriter_plus OfficeOpenXML, fork of PHP_XLSXWriter
• php_writeexcel xls only (looks like it's based on PEAR SEW)
• spout OfficeOpenXML (xlsx) and CSV
• Slamdunk/php-excel (xls only) looks like an updated version of the old PEAR Spreadsheet Writer

For Reading Excel

• php-spreadsheetreader reads a variety of formats (.xls, .ods and .csv)
• PHP-ExcelReader (xls only)
• PHP_Excel_Reader (xls only)
• PHP_Excel_Reader2 (xls only)
• XLS File Reader Commercial and xls only
• SimpleXLSX From the description it reads xlsx files , though the author constantly refers to xls
• PHP Excel Explorer Commercial and xls only
• Ilia Alshanetsky's Excel extension now on github (xls and xlsx, and requires commercial libXL component)
• PHP's COM extension (requires a COM enabled spreadsheet program such as MS Excel or OpenOffice Calc running on the server)
• The Open Office alternative to COM (PUNO) (requires Open Office installed on the server with Java support enabled)
• Nuovo's spreadsheet-reader (csv, xls, xlsx, and ods)
• SimpleExcel Claims to read and write Microsoft Excel XML / CSV / TSV / HTML / JSON / etc formats
• PHPExcleReader Is just a ZIP with an old version of PHPExcel
• Akeneo Labs Spreadsheet Parser OfficeOpenXML (.xlsx) and CSV files
• spout OfficeOpenXML (xlsx) and CSV
• xhook's php-spreadsheetreader Claims to do most formats

A new C++ Excel extension for PHP, though you'll need to build it yourself, and the docs are pretty sparse when it comes to trying to find out what functionality (I can't even find out from the site what formats it supports, or whether it reads or writes or both.... I'm guessing both) it offers is phpexcellib from SIMITGROUP.

All claim to be faster than PHPExcel from codeplex or from github, but (with the exception of COM, PUNO Ilia's wrapper around libXl and spout) they don't offer both reading and writing, or both xls and xlsx; may no longer be supported; and (while I haven't tested Ilia's extension) only COM and PUNO offers the same degree of control over the created workbook.

Whether encrypted be the same when plain text is encrypted with the same key depends of algorithm and protocol. In cryptography there is initialization vector IV: http://en.wikipedia.org/wiki/Initialization_vector that used with various ciphers makes that the same plain text encrypted with the same key gives various cipher texts.

I advice you to read more about cryptography on Wikipedia, Bruce Schneier http://www.schneier.com/books.html and "Beginning Cryptography with Java" by David Hook. The last book is full of examples of usage of http://www.bouncycastle.org library.

If you are interested in cryptography the there is CrypTool: http://www.cryptool.org/ CrypTool is a free, open-source e-learning application, used worldwide in the implementation and analysis of cryptographic algorithms.

My versions use the original range function to create multiplicative indices for the shift. This allows same syntax to the original range function. I have made two versions, one using float, and one using Decimal, because I found that in some cases I wanted to avoid the roundoff drift introduced by the floating point arithmetic.

It is consistent with empty set results as in range/xrange.

Passing only a single numeric value to either function will return the standard range output to the integer ceiling value of the input parameter (so if you gave it 5.5, it would return range(6).)

Edit: the code below is now available as package on pypi: Franges

## frange.py
from math import ceil
# find best range function available to version (2.7.x / 3.x.x)
try:
    _xrange = xrange
except NameError:
    _xrange = range

def frange(start, stop = None, step = 1):
    """frange generates a set of floating point values over the 
    range [start, stop) with step size step

    frange([start,] stop [, step ])"""

    if stop is None:
        for x in _xrange(int(ceil(start))):
            yield x
    else:
        # create a generator expression for the index values
        indices = (i for i in _xrange(0, int((stop-start)/step)))  
        # yield results
        for i in indices:
            yield start + step*i

## drange.py
import decimal
from math import ceil
# find best range function available to version (2.7.x / 3.x.x)
try:
    _xrange = xrange
except NameError:
    _xrange = range

def drange(start, stop = None, step = 1, precision = None):
    """drange generates a set of Decimal values over the
    range [start, stop) with step size step

    drange([start,] stop, [step [,precision]])"""

    if stop is None:
        for x in _xrange(int(ceil(start))):
            yield x
    else:
        # find precision
        if precision is not None:
            decimal.getcontext().prec = precision
        # convert values to decimals
        start = decimal.Decimal(start)
        stop = decimal.Decimal(stop)
        step = decimal.Decimal(step)
        # create a generator expression for the index values
        indices = (
            i for i in _xrange(
                0, 
                ((stop-start)/step).to_integral_value()
            )
        )  
        # yield results
        for i in indices:
            yield float(start + step*i)

## testranges.py
import frange
import drange
list(frange.frange(0, 2, 0.5)) # [0.0, 0.5, 1.0, 1.5]
list(drange.drange(0, 2, 0.5, precision = 6)) # [0.0, 0.5, 1.0, 1.5]
list(frange.frange(3)) # [0, 1, 2]
list(frange.frange(3.5)) # [0, 1, 2, 3]
list(frange.frange(0,10, -1)) # []

In computer programming, particularly in the C, C++, and C# programming languages, a variable or object declared with the volatile keyword usually has special properties related to optimization and/or threading. Generally speaking, the volatile keyword is intended to prevent the (pseudo)compiler from applying any optimizations on the code that assume values of variables cannot change "on their own." (c) Wikipedia

http://en.wikipedia.org/wiki/Volatile_variable

Android uses some files called resources where values are stored for the XML files.

Now when you use @id/ for an XML object, It is trying to refer to an id which is already registered in the values files. On the other hand, when you use @+id/ it registers a new id in the values files as implied by the '+' symbol.

Hope this helps :).

function(e){ e.preventDefault();

and its opposite

function(e){ return true; }

cheers!

Swift 4.2, Xcode 9.3 version

class LinkedLabel: UILabel {

    fileprivate let layoutManager = NSLayoutManager()
    fileprivate let textContainer = NSTextContainer(size: CGSize.zero)
    fileprivate var textStorage: NSTextStorage?


    override init(frame aRect:CGRect){
        super.init(frame: aRect)
        self.initialize()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        self.initialize()
    }

    func initialize(){

        let tap = UITapGestureRecognizer(target: self, action: #selector(self.handleTapOnLabel))
        self.isUserInteractionEnabled = true
        self.addGestureRecognizer(tap)
    }

    override var attributedText: NSAttributedString?{
        didSet{
            if let _attributedText = attributedText{
                self.textStorage = NSTextStorage(attributedString: _attributedText)

                self.layoutManager.addTextContainer(self.textContainer)
                self.textStorage?.addLayoutManager(self.layoutManager)

                self.textContainer.lineFragmentPadding = 0.0;
                self.textContainer.lineBreakMode = self.lineBreakMode;
                self.textContainer.maximumNumberOfLines = self.numberOfLines;
            }

        }
    }

    @objc func handleTapOnLabel(tapGesture:UITapGestureRecognizer){

        let locationOfTouchInLabel = tapGesture.location(in: tapGesture.view)
        let labelSize = tapGesture.view?.bounds.size
        let textBoundingBox = self.layoutManager.usedRect(for: self.textContainer)
        let textContainerOffset = CGPoint(x: ((labelSize?.width)! - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x, y: ((labelSize?.height)! - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y)

        let locationOfTouchInTextContainer = CGPoint(x: locationOfTouchInLabel.x - textContainerOffset.x, y: locationOfTouchInLabel.y - textContainerOffset.y)
        let indexOfCharacter = self.layoutManager.characterIndex(for: locationOfTouchInTextContainer, in: self.textContainer, fractionOfDistanceBetweenInsertionPoints: nil)


        self.attributedText?.enumerateAttribute(NSAttributedStringKey.link, in: NSMakeRange(0, (self.attributedText?.length)!), options: NSAttributedString.EnumerationOptions(rawValue: UInt(0)), using:{
            (attrs: Any?, range: NSRange, stop: UnsafeMutablePointer<ObjCBool>) in

            if NSLocationInRange(indexOfCharacter, range){
                if let _attrs = attrs{

                    UIApplication.shared.openURL(URL(string: _attrs as! String)!)
                }
            }
        })

    }}

If there are multiple threads accessing class level variable then each thread can keep copy of that variable in its threadlocal cache.

Making the variable volatile will prevent threads from keeping the copy of variable in threadlocal cache.

Atomic variables are different and they allow atomic modification of their values.

try to disabled Dark Mode on Mysql Workbench run this on terminal

defaults write com.oracle.workbench.MySQLWorkbench NSRequiresAquaSystemAppearance -bool yes

With Git 2.30 (Q1 2021), "git diff A...B(man)" learned "git diff --merge-base A B(man), which is a longer short-hand to say the same thing.

Thus you can do this using git diff --merge-base <branch> HEAD. This should be equivalent to git diff <branch>...HEAD but without the confusion of having to use range-notation in a diff.

I would use this:

select t.*
from test as t
join
   (select max(rev) as rev
    from test
    group by id) as o
on o.rev = t.rev

Subquery SELECT is not too eficient maybe, but in JOIN clause seems to be usable. I'm not an expert in optimizing queries, but I've tried at MySQL, PostgreSQL, FireBird and it does work very good.

You can use this schema in multiple joins and with WHERE clause. It is my working example (solving identical to yours problem with table "firmy"):

select *
from platnosci as p
join firmy as f
on p.id_rel_firmy = f.id_rel
join (select max(id_obj) as id_obj
      from firmy
      group by id_rel) as o
on o.id_obj = f.id_obj and p.od > '2014-03-01'

It is asked on tables having teens thusands of records, and it takes less then 0,01 second on really not too strong machine.

I wouldn't use IN clause (as it is mentioned somewhere above). IN is given to use with short lists of constans, and not as to be the query filter built on subquery. It is because subquery in IN is performed for every scanned record which can made query taking very loooong time.

Another and short way to get value of selected value,

$('#selectElement').on('change',function(){
   var selectedVal = $(this).val();
                       ^^^^  ^^^^ -> presents #selectElement selected value 
                         |
                         v
               presents #selectElement, 
});

I'm going to answer my own question.

1. innerJoin should use the keyword "WITH" instead of "ON" (Doctrine's documentation [13.2.6. Helper methods] is inaccurate; [13.2.5. The Expr class] is correct)
2. no need to link foreign keys in join condition as they're already specified in the entity mapping.

Therefore, the following works for me

$qb->select('c')
    ->innerJoin('c.phones', 'p', 'WITH', 'p.phone = :phone')
    ->where('c.username = :username');

or

$qb->select('c')
    ->innerJoin('c.phones', 'p', Join::WITH, $qb->expr()->eq('p.phone', ':phone'))
    ->where('c.username = :username');

You can use checkout or co

$ svn co http://example.com/svn/app-name directory-name

Some short codes:-

1. checkout (co)
2. commit (ci)
3. copy (cp)
4. delete (del, remove,rm)
5. diff (di)

Your query translates to:

SELECT name FROM users WHERE id IN ('Array');

Or something to that affect.

Try using prepared queries instead, something like:

$numbers = explode(',', $string);
$prepare = array_map(function(){ return '?'; }, $numbers);
$statement = mysqli_prepare($link , "SELECT name FROM users WHERE id IN ('".implode(',', $prepare)."')");
if($statement) {
   $ints = array_map(function(){ return 'i'; }, $numbers);
   call_user_func_array("mysqli_stmt_bind_param", array_merge(
      array($statement, implode('', $ints)), $numbers
   ));
   $results = mysqli_stmt_execute($statement);
   // do something with results 
   // ...
}