Programs & Examples On #Magento 1.4

go to your website via FTP/Cpanel, find maintenance.flag and remove

in pure Ruby:

{:a => 1, :b => 2}.tap{|x| x.delete(:a)}   # => {:b=>2}

The trick is to implement a stable sort. I've created a Widget class that can contain your test data:

public class Widget : IComparable
{
    int x;
    int y;
    public int X
    {
        get { return x; }
        set { x = value; }
    }

    public int Y
    {
        get { return y; }
        set { y = value; }
    }

    public Widget(int argx, int argy)
    {
        x = argx;
        y = argy;
    }

    public int CompareTo(object obj)
    {
        int result = 1;
        if (obj != null && obj is Widget)
        {
            Widget w = obj as Widget;
            result = this.X.CompareTo(w.X);
        }
        return result;
    }

    static public int Compare(Widget x, Widget y)
    {
        int result = 1;
        if (x != null && y != null)                
        {                
            result = x.CompareTo(y);
        }
        return result;
    }
}

I implemented IComparable, so it can be unstably sorted by List.Sort().

However, I also implemented the static method Compare, which can be passed as a delegate to a search method.

I borrowed this insertion sort method from C# 411:

 public static void InsertionSort<T>(IList<T> list, Comparison<T> comparison)
        {           
            int count = list.Count;
            for (int j = 1; j < count; j++)
            {
                T key = list[j];

                int i = j - 1;
                for (; i >= 0 && comparison(list[i], key) > 0; i--)
                {
                    list[i + 1] = list[i];
                }
                list[i + 1] = key;
            }
    }

You would put this in the sort helpers class that you mentioned in your question.

Now, to use it:

    static void Main(string[] args)
    {
        List<Widget> widgets = new List<Widget>();

        widgets.Add(new Widget(0, 1));
        widgets.Add(new Widget(1, 1));
        widgets.Add(new Widget(0, 2));
        widgets.Add(new Widget(1, 2));

        InsertionSort<Widget>(widgets, Widget.Compare);

        foreach (Widget w in widgets)
        {
            Console.WriteLine(w.X + ":" + w.Y);
        }
    }

And it outputs:

0:1
0:2
1:1
1:2
Press any key to continue . . .

This could probably be cleaned up with some anonymous delegates, but I'll leave that up to you.

EDIT: And NoBugz demonstrates the power of anonymous methods...so, consider mine more oldschool :P

Instructions here are a little complicated so I'm going to offer something more straightforward:

1. git reset HEAD --hard Abandon all changes to the current branch

2. ... Perform intermediary work as necessary

3. git stash pop Re-pop the stash again at a later date when you're ready

In Windows 7 and later, this will do the trick for you

• Select the file/files.
• Hold the shift key and then right-click on the selected file/files.
• You will see Copy as Path. Click that.
• Open a Notepad file and paste and you will be good to go.

The menu item Copy as Path is not available in Windows XP.

This typically happens when mixing (in the same jsp page) static jsp import:

<%@include file="...

with dynamic jsp import:

<jsp:include page="...

and your type has been already imported by the "static imported" jsp. When the same type needs to be used (and then imported) by the "dynamically imported" jsp -> this generate the Exception: "Only a type can be imported..."

LINQ Any() would do the job:

bool contains = myList.Any(s => s.Contains(pattern));

Any(), MSDN:

Determines whether any element of a sequence satisfies a condition

Is this what you need?

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >

    <TableRow
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp" >

        <ImageView
            android:id="@+id/place_category_icon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0"
            android:contentDescription="ss"
            android:paddingRight="15dp"
            android:paddingTop="10dp"
            android:src="@drawable/marker" />

        <TextView
            android:id="@+id/place_title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Place Name"
            android:textColor="#F00F00"
            android:layout_gravity="center_vertical"
            android:textSize="14sp"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/place_distance"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="0"
            android:layout_gravity="center_vertical"
            android:text="320" />
    </TableRow>

</RelativeLayout>

You can run composer show -i (short for --installed).

In the latest version just use composer show.

The -i options has been deprecated.

You can also use the global instalation of composer: composer global show

A cleaner way to do this:

class Book {
    public Title: string;
    public Price: number;
    public Description: string;

    constructor(public BookId: number, public Author: string){}
}

Then

var bks: Book[] = [
    new Book(1, "vamsee")
];

Looking at this official google link: Youtube Live encoder settings, bitrates and resolutions they have this table:

                   240p       360p        480p        720p        1080p
Resolution      426 x 240   640 x 360   854x480     1280x720    1920x1080
Video Bitrates                   
Maximum         700 Kbps    1000 Kbps   2000 Kbps   4000 Kbps   6000 Kbps
Recommended     400 Kbps    750 Kbps    1000 Kbps   2500 Kbps   4500 Kbps
Minimum         300 Kbps    400 Kbps    500 Kbps    1500 Kbps   3000 Kbps

It would appear as though this is the case, although the numbers dont sync up to the google table above:

// the bitrates, video width and file names for this clip
      bitrates: [
        { url: "bbb-800.mp4", width: 480, bitrate: 800 }, //360p video
        { url: "bbb-1200.mp4", width: 720, bitrate: 1200 }, //480p video
        { url: "bbb-1600.mp4", width: 1080, bitrate: 1600 } //720p video
      ],

struct Rect
{
    Rect(int x1, int x2, int y1, int y2)
    : x1(x1), x2(x2), y1(y1), y2(y2)
    {
        assert(x1 < x2);
        assert(y1 < y2);
    }

    int x1, x2, y1, y2;
};

bool
overlap(const Rect &r1, const Rect &r2)
{
    // The rectangles don't overlap if
    // one rectangle's minimum in some dimension 
    // is greater than the other's maximum in
    // that dimension.

    bool noOverlap = r1.x1 > r2.x2 ||
                     r2.x1 > r1.x2 ||
                     r1.y1 > r2.y2 ||
                     r2.y1 > r1.y2;

    return !noOverlap;
}

So before I found this post, I successfully found this to work.

Model._meta.fields

It works equally as

Model._meta.get_fields()

I'm not sure what the difference is in the results, if there is one. I ran this loop and got the same output.

for field in Model._meta.fields:
    print(field.name)

#include <algorithm>
std::reverse(str.begin(), str.end());

This is the simplest way in C++.

If you are asking whether there's shorthand version of operator .. - no there isn't. You cannot write a ..= b. You'll have to type it in full: filename = filename .. ".tmp"

You have set a fixed width and height in your svg tag. This is probably the root of your problem. Try not removing those and set the width and height (if needed) using CSS instead.

In the server, do something like this:

Suppose

String data = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPAAAADwCAYAAAA+VemSAAAgAEl...=='

Then:

String base64Image = data.split(",")[1];
byte[] imageBytes = javax.xml.bind.DatatypeConverter.parseBase64Binary(base64Image);

Then you can do whatever you like with the bytes like:

BufferedImage img = ImageIO.read(new ByteArrayInputStream(imageBytes));

If you using JavaScript to test your Regex, try \\. instead of \..

It acts on the same way because JS remove first backslash.

here is simple code

List <String> list = new ArrayList <String>();
list.add("a");
list.add("b");
JSONArray array = new JSONArray();
for (int i = 0; i < list.size(); i++) {
        array.put(list.get(i));
}
JSONObject obj = new JSONObject();
try {
    obj.put("result", array);
} catch (JSONException e) {
 // TODO Auto-generated catch block
e.printStackTrace();
}
pw.write(obj.toString());

Try this

#include <stdio.h>

struct context;

struct funcptrs{
  void (*func0)(struct context *ctx);
  void (*func1)(void);
};

struct context{
    struct funcptrs fps;
}; 

void func1 (void) { printf( "1\n" ); }
void func0 (struct context *ctx) { printf( "0\n" ); }

void getContext(struct context *con){
    con->fps.func0 = func0;  
    con->fps.func1 = func1;  
}

int main(int argc, char *argv[]){
 struct context c;
   c.fps.func0 = func0;
   c.fps.func1 = func1;
   getContext(&c);
   c.fps.func0(&c);
   getchar();
   return 0;
}

You can get the comments of a particular method by using the ReflectionMethod class and calling ->getDocComment().

http://www.php.net/manual/en/reflectionclass.getdoccomment.php

All you have to do is create a subset of your dataframe where the isin method evaluates to False:

df = df[df['Column Name'].isin(['Value']) == False]

You must sort your data according your needs (es. in reverse order) and use select top query

Just as a quick addition to this. I was having the same problem and while Webpack was compiling my tests and the application was running fine. When I was importing my component into the test file I was using the incorrect case on one of the imports and that was causing the same error.

import myComponent from '../../src/components/myComponent'

Should have been

import myComponent from '../../src/components/MyComponent'

Note that the import name myComponent depends on the name of the export inside the MyComponent file.

You can use setTimeout to run the function/command once or setInterval to run the function/command at specified intervals.

var a = setTimeout("alert('run just one time')",500);
var b = setInterval("alert('run each 3 seconds')",3000);

//To abort the interval you can use this:
clearInterval(b);

You could use module scope. Say you have a module called utils:

f_value = 'foo'

def f():
    return f_value

f_value is a module attribute that can be modified by any other module that imports it. As modules are singletons, any change to utils from one module will be accessible to all other modules that have it imported:

>> import utils
>> utils.f()
'foo'
>> utils.f_value = 'bar'
>> utils.f()
'bar'

Note that you can import the function by name:

>> import utils
>> from utils import f
>> utils.f_value = 'bar'
>> f()
'bar'

But not the attribute:

>> from utils import f, f_value
>> f_value = 'bar'
>> f()
'foo'

This is because you're labeling the object referenced by the module attribute as f_value in the local scope, but then rebinding it to the string bar, while the function f is still referring to the module attribute.

Move the config files from src/main/java to src/main/resources.

Assuming you're on at least 3.2, there's a built in for this:

int.from_bytes( bytes, byteorder, *, signed=False )

...

The argument bytes must either be a bytes-like object or an iterable producing bytes.

The byteorder argument determines the byte order used to represent the integer. If byteorder is "big", the most significant byte is at the beginning of the byte array. If byteorder is "little", the most significant byte is at the end of the byte array. To request the native byte order of the host system, use sys.byteorder as the byte order value.

The signed argument indicates whether two’s complement is used to represent the integer.

## Examples:
int.from_bytes(b'\x00\x01', "big")                         # 1
int.from_bytes(b'\x00\x01', "little")                      # 256

int.from_bytes(b'\x00\x10', byteorder='little')            # 4096
int.from_bytes(b'\xfc\x00', byteorder='big', signed=True)  #-1024

I found the solution:

function onClick(e) {alert(this.getLatLng());}

used the method getLatLng() of the marker

May be this examples help to you

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


/*
    Implementation simple timeout

    Input: count milliseconds as number

    Usage:
        setTimeout(1000) - timeout on 1 second
        setTimeout(10100) - timeout on 10 seconds and 100 milliseconds
 */
void setTimeout(int milliseconds)
{
    // If milliseconds is less or equal to 0
    // will be simple return from function without throw error
    if (milliseconds <= 0) {
        fprintf(stderr, "Count milliseconds for timeout is less or equal to 0\n");
        return;
    }

    // a current time of milliseconds
    int milliseconds_since = clock() * 1000 / CLOCKS_PER_SEC;

    // needed count milliseconds of return from this timeout
    int end = milliseconds_since + milliseconds;

    // wait while until needed time comes
    do {
        milliseconds_since = clock() * 1000 / CLOCKS_PER_SEC;
    } while (milliseconds_since <= end);
}


int main()
{

    // input from user for time of delay in seconds
    int delay;
    printf("Enter delay: ");
    scanf("%d", &delay);

    // counter downtime for run a rocket while the delay with more 0
    do {
        // erase the previous line and display remain of the delay
        printf("\033[ATime left for run rocket: %d\n", delay);

        // a timeout for display
        setTimeout(1000);

        // decrease the delay to 1
        delay--;

    } while (delay >= 0);

    // a string for display rocket
    char rocket[3] = "-->";

    // a string for display all trace of the rocket and the rocket itself
    char *rocket_trace = (char *) malloc(100 * sizeof(char));

    // display trace of the rocket from a start to the end
    int i;
    char passed_way[100] = "";
    for (i = 0; i <= 50; i++) {
        setTimeout(25);
        sprintf(rocket_trace, "%s%s", passed_way, rocket);
        passed_way[i] = ' ';
        printf("\033[A");
        printf("| %s\n", rocket_trace);
    }

    // erase a line and write a new line
    printf("\033[A");
    printf("\033[2K");
    puts("Good luck!");

    return 0;
}

Compile file, run and delete after (my preference)

$ gcc timeout.c -o timeout && ./timeout && rm timeout

Try run it for yourself to see result.

Notes:

Testing environment

$ uname -a
Linux wlysenko-Aspire 3.13.0-37-generic #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
$ gcc --version
gcc (Ubuntu 4.8.5-2ubuntu1~14.04.1) 4.8.5
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

I guess this document might serve as a not so short introduction : n3055

The whole massacre began with the move semantics. Once we have expressions that can be moved and not copied, suddenly easy to grasp rules demanded distinction between expressions that can be moved, and in which direction.

From what I guess based on the draft, the r/l value distinction stays the same, only in the context of moving things get messy.

Are they needed? Probably not if we wish to forfeit the new features. But to allow better optimization we should probably embrace them.

Quoting n3055:

• An lvalue (so-called, historically, because lvalues could appear on the left-hand side of an assignment expression) designates a function or an object. [Example: If E is an expression of pointer type, then *E is an lvalue expression referring to the object or function to which E points. As another example, the result of calling a function whose return type is an lvalue reference is an lvalue.]
• An xvalue (an “eXpiring” value) also refers to an object, usually near the end of its lifetime (so that its resources may be moved, for example). An xvalue is the result of certain kinds of expressions involving rvalue references. [Example: The result of calling a function whose return type is an rvalue reference is an xvalue.]
• A glvalue (“generalized” lvalue) is an lvalue or an xvalue.
• An rvalue (so-called, historically, because rvalues could appear on the right-hand side of an assignment expression) is an xvalue, a temporary object or subobject thereof, or a value that is not associated with an object.
• A prvalue (“pure” rvalue) is an rvalue that is not an xvalue. [Example: The result of calling a function whose return type is not a reference is a prvalue]

The document in question is a great reference for this question, because it shows the exact changes in the standard that have happened as a result of the introduction of the new nomenclature.

Read /usr/src/linux/Documentation/sysctl/kernel.txt.

[/proc/sys/kernel/]core_pattern is used to specify a core dumpfile pattern name.

• If the first character of the pattern is a '|', the kernel will treat the rest of the pattern as a command to run. The core dump will be written to the standard input of that program instead of to a file.

Instead of writing the core dump to disk, your system is configured to send it to the abrt program instead. Automated Bug Reporting Tool is possibly not as documented as it should be...

In any case, the quick answer is that you should be able to find your core file in /var/cache/abrt, where abrt stores it after being invoked. Similarly, other systems using Apport may squirrel away cores in /var/crash, and so on.

**1. Convert the json string to base64string and Write or append it to binary file. 2. Read base64string from binary file and deserialize using BsonReader. **

 public static class BinaryJson
{
    public static string SerializeToBase64String(this object obj)
    {
        JsonSerializer jsonSerializer = new JsonSerializer();
        MemoryStream objBsonMemoryStream = new MemoryStream();
        using (BsonWriter bsonWriterObject = new BsonWriter(objBsonMemoryStream))
        {
            jsonSerializer.Serialize(bsonWriterObject, obj);
            return Convert.ToBase64String(objBsonMemoryStream.ToArray());
        }           
        //return Encoding.ASCII.GetString(objBsonMemoryStream.ToArray());
    }
    public static T DeserializeToObject<T>(this string base64String)
    {
        byte[] data = Convert.FromBase64String(base64String);
        MemoryStream ms = new MemoryStream(data);
        using (BsonReader reader = new BsonReader(ms))
        {
            JsonSerializer serializer = new JsonSerializer();
            return serializer.Deserialize<T>(reader);
        }
    }
}

Without a bit more code ... its hard to say what's going on.

But if your code looks something like this:

<li routerLinkActive="active">
  <a [routerLink]="/categories"><p>Products Categories</p></a>
</li>
...
<router-outlet></router-outlet>
<myComponentA></myComponentA>
<myComponentB></myComponentB>

Then clicking on the router link will route to the categories route and display its template in the router outlet.

Hiding and showing the child components don't affect what is displayed in the router outlet.

So if you click the link again, the categories route is already displayed in the router outlet and it won't display/re-initialize again.

If you could be a bit more specific about what you are trying to do, we could provide more specific suggestions for you. :-)

You can use Newtonsoft.Json, it's a dependency of Microsoft.AspNet.Mvc.ModelBinding which is a dependency of Microsoft.AspNet.Mvc. So, you don't need to add a dependency in your project.json.

#using Newtonsoft.Json
....
JsonConvert.DeserializeObject(json);

Note, using a WebAPI controller you don't need to deal with JSON.

UPDATE ASP.Net Core 3.0

Json.NET has been removed from the ASP.NET Core 3.0 shared framework.

You can use the new JSON serializer layers on top of the high-performance Utf8JsonReader and Utf8JsonWriter. It deserializes objects from JSON and serializes objects to JSON. Memory allocations are kept minimal and includes support for reading and writing JSON with Stream asynchronously.

To get started, use the JsonSerializer class in the System.Text.Json.Serialization namespace. See the documentation for information and samples.

To use Json.NET in an ASP.NET Core 3.0 project:

• Add a package reference to Microsoft.AspNetCore.Mvc.NewtonsoftJson
• Update ConfigureServices to call AddNewtonsoftJson().

    services.AddMvc()
        .AddNewtonsoftJson();

Read Json.NET support in Migrate from ASP.NET Core 2.2 to 3.0 Preview 2 for more information.

Actually, I see that ECMAScript (JavaScript) DOES INDEED have a goto statement. However, the JavaScript goto has two flavors!

The two JavaScript flavors of goto are called labeled continue and labeled break. There is no keyword "goto" in JavaScript. The goto is accomplished in JavaScript using the break and continue keywords.

And this is more or less explicitly stated on the w3schools website here http://www.w3schools.com/js/js_switch.asp.

I find the documentation of the labeled continue and labeled break somewhat awkwardly expressed.

The difference between the labeled continue and labeled break is where they may be used. The labeled continue can only be used inside a while loop. See w3schools for some more information.

===========

Another approach that will work is to have a giant while statement with a giant switch statement inside:

while (true)
{
    switch (goto_variable)
    {
        case 1:
            // some code
            goto_variable = 2
            break;
        case 2:
            goto_variable = 5   // case in etc. below
            break;
        case 3:
            goto_variable = 1
            break;

         etc. ...
    }

}

The new Array method .filter() would work well for this:

var filteredArray = array.filter(function (element) { 
    return element.id === 0;
});

jQuery can also do this with .grep()

edit: it is worth mentioning that both of these functions just iterate under the hood, there won't be a noticeable performance difference between them and rolling your own filter function, but why re-invent the wheel.

My Solution for this was very very simple ( if you are using Windows). 1- Close Android Studio. 2- Run Android Studio as Administrator. 3- That is it.

Remove the float on the left column.

At the HTML code, the right column needs to come before the left one.

If the right has a float (and a width), and if the left column doesn't have a width and no float, it will be flexible :)

Also apply an overflow: hidden and some height (can be auto) to the outer div, so that it surrounds both inner divs.

Finally, at the left column, add a width: auto and overflow: hidden, this makes the left column independent from the right one (for example, if you resized the browser window, and the right column touched the left one, without these properties, the left column would run arround the right one, with this properties it remains in its space).

Example HTML:

<div class="container">
    <div class="right">
        right content fixed width
    </div>
    <div class="left">
        left content flexible width
    </div>
</div>

CSS:

.container {
   height: auto;
   overflow: hidden;
}

.right {
    width: 180px;
    float: right;
    background: #aafed6;
}

.left {
    float: none; /* not needed, just for clarification */
    background: #e8f6fe;
    /* the next props are meant to keep this block independent from the other floated one */
    width: auto;
    overflow: hidden;
}??

Example here: http://jsfiddle.net/jackJoe/fxWg7/

Function overloading is same name function but different arguments. Function over riding means same name function and same as arguments

If you are entering the data manually you may consider removing the values and the zeros on the TIMESTAMP(6).000000 so that it becomes TIMESTAMP. That worked fine with me.

in the file .gitmodules, I replaced string

"path = thirdsrc\boost" 

with

"path = thirdsrc/boost", 

and it solved! - -

I am not using AnkhSVN but got a similar problem after cancelling a Tortoise SVN update. It left two directories "already locked". Similar to Roman C's solution. Use Get lock to to lock one file in each directory that is "already locked" and then release those locks, then do a cleanup on the highest directory. That seemed to fix the problem.

I think the best way to do is the way mentioned by @Salvador Dali. Not that the others are wrong.

Because when you have a data set where you just want to select one column and put it into one variable and the rest of the columns into another for comparison or computational purposes. Then dropping the column of the data set might not help. Of course there are use cases for that as well.

x_cols = [x for x in data.columns if x != 'name of column to be excluded']

Then you can put those collection of columns in variable x_cols into another variable like x_cols1 for other computation.

ex: x_cols1 = data[x_cols]

The solution that work for me is the following:

1. Copy the dependency to pom.

   <dependency>
       <groupId>org.apache.maven</groupId>
       <artifactId>maven-archiver</artifactId>
       <version>2.5</version>
   </dependency>
   

2. Click right on your project

3. Select Maven
4. Select Update project
5. Select Force Update of Snapshots/Releases

Where is this info kept ("this connection is between computer A and server F")?

A TCP connection is recognized by source IP and port and destination IP and port. Your OS, all intermediate session-aware devices and the server's OS will recognize the connection by this.

HTTP works with request-response: client connects to server, performs a request and gets a response. Without keep-alive, the connection to an HTTP server is closed after each response. With HTTP keep-alive you keep the underlying TCP connection open until certain criteria are met.

This allows for multiple request-response pairs over a single TCP connection, eliminating some of TCP's relatively slow connection startup.

When The IIS (F) sends keep alive header (or user sends keep-alive) , does it mean that (E,C,B) save a connection

No. Routers don't need to remember sessions. In fact, multiple TCP packets belonging to same TCP session need not all go through same routers - that is for TCP to manage. Routers just choose the best IP path and forward packets. Keep-alive is only for client, server and any other intermediate session-aware devices.

which is only for my session ?

Does it mean that no one else can use that connection

That is the intention of TCP connections: it is an end-to-end connection intended for only those two parties.

If so - does it mean that keep alive-header - reduce the number of overlapped connection users ?

Define "overlapped connections". See HTTP persistent connection for some advantages and disadvantages, such as:

• Lower CPU and memory usage (because fewer connections are open simultaneously).
• Enables HTTP pipelining of requests and responses.
• Reduced network congestion (fewer TCP connections).
• Reduced latency in subsequent requests (no handshaking).

if so , for how long does the connection is saved to me ? (in other words , if I set keep alive- "keep" till when?)

An typical keep-alive response looks like this:

Keep-Alive: timeout=15, max=100

See Hypertext Transfer Protocol (HTTP) Keep-Alive Header for example (a draft for HTTP/2 where the keep-alive header is explained in greater detail than both 2616 and 2086):

• A host sets the value of the timeout parameter to the time that the host will allows an idle connection to remain open before it is closed. A connection is idle if no data is sent or received by a host.

• The max parameter indicates the maximum number of requests that a client will make, or that a server will allow to be made on the persistent connection. Once the specified number of requests and responses have been sent, the host that included the parameter could close the connection.

However, the server is free to close the connection after an arbitrary time or number of requests (just as long as it returns the response to the current request). How this is implemented depends on your HTTP server.

all above answers is correct but however

a = [];
len(list1) - 1 # where 0 - 1 = -1

to be more precisely

a = [];
index = len(a) - 1 if a else None;

if index == None : raise Exception("Empty Array")

since arrays is starting with 0

SCROLLBARS & $(window).scrollTop()

What I have discovered is that calling such functionality as in the solution thankfully provided above, (there are many more examples of this throughout this forum - which all work well) is only successful when scrollbars are actually visible and operating.

If (as I have maybe foolishly tried), you wish to implement such functionality, and you also wish to, shall we say, implement a minimalist "clean screen" free of scrollbars, such as at this discussion, then $(window).scrollTop() will not work.

It may be a programming fundamental, but thought I'd offer the heads up to any fellow newbies, as I spent a long time figuring this out.

If anyone could offer some advice as to how to overcome this or a little more insight, feel free to reply, as I had to resort to show/hide onmouseover/mouseleave instead here

Live long and program, CollyG.

An absolute URI specifies a scheme; a URI that is not absolute is said to be relative.

http://docs.oracle.com/javase/8/docs/api/java/net/URI.html

So, perhaps your URLEncoder isn't working as you're expecting (the https bit)?

    URLEncoder.encode(uri) 

First of all you have to understand the nature of

response.sendRedirect(newUrl);

It is giving the client (browser) 302 http code response with an URL. The browser then makes a separate GET request on that URL. And that request has no knowledge of headers in the first one.

So sendRedirect won't work if you need to pass a header from Servlet A to Servlet B.

If you want this code to work - use RequestDispatcher in Servlet A (instead of sendRedirect). Also, it is always better to use relative path.

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
    String userName=request.getParameter("userName");
    String newUrl = "ServletB";
    response.addHeader("REMOTE_USER", userName);
    RequestDispatcher view = request.getRequestDispatcher(newUrl);
    view.forward(request, response);
}

========================

public void doPost(HttpServletRequest request, HttpServletResponse response)
{
    String sss = response.getHeader("REMOTE_USER");
}

You can't access the method fxn since it's not static. Static methods can only access other static methods directly. If you want to use fxn in your main method you need to:

...
Two two = new Two();
x = two.fxn(x)
...

That is, make a Two-Object and call the method on that object.

...or make the fxn method static.

Here a solution, working if you want to print output while process is running or not.

I added the current working directory also, it was useful to me more than once.

Hoping the solution will help someone :).

import subprocess

def run_command(cmd_and_args, print_constantly=False, cwd=None):
"""Runs a system command.

:param cmd_and_args: the command to run with or without a Pipe (|).
:param print_constantly: If True then the output is logged in continuous until the command ended.
:param cwd: the current working directory (the directory from which you will like to execute the command)
:return: - a tuple containing the return code, the stdout and the stderr of the command
"""
output = []

process = subprocess.Popen(cmd_and_args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, cwd=cwd)

while True:
    next_line = process.stdout.readline()
    if next_line:
        output.append(str(next_line))
        if print_constantly:
            print(next_line)
    elif not process.poll():
        break

error = process.communicate()[1]

return process.returncode, '\n'.join(output), error

From my Diceshaker application:

// Ensures the shake is strong enough on at least two axes before declaring it a shake.
// "Strong enough" means "greater than a client-supplied threshold" in G's.
static BOOL L0AccelerationIsShaking(UIAcceleration* last, UIAcceleration* current, double threshold) {
    double
        deltaX = fabs(last.x - current.x),
        deltaY = fabs(last.y - current.y),
        deltaZ = fabs(last.z - current.z);

    return
        (deltaX > threshold && deltaY > threshold) ||
        (deltaX > threshold && deltaZ > threshold) ||
        (deltaY > threshold && deltaZ > threshold);
}

@interface L0AppDelegate : NSObject <UIApplicationDelegate> {
    BOOL histeresisExcited;
    UIAcceleration* lastAcceleration;
}

@property(retain) UIAcceleration* lastAcceleration;

@end

@implementation L0AppDelegate

- (void)applicationDidFinishLaunching:(UIApplication *)application {
    [UIAccelerometer sharedAccelerometer].delegate = self;
}

- (void) accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {

    if (self.lastAcceleration) {
        if (!histeresisExcited && L0AccelerationIsShaking(self.lastAcceleration, acceleration, 0.7)) {
            histeresisExcited = YES;

            /* SHAKE DETECTED. DO HERE WHAT YOU WANT. */

        } else if (histeresisExcited && !L0AccelerationIsShaking(self.lastAcceleration, acceleration, 0.2)) {
            histeresisExcited = NO;
        }
    }

    self.lastAcceleration = acceleration;
}

// and proper @synthesize and -dealloc boilerplate code

@end

The histeresis prevents the shake event from triggering multiple times until the user stops the shake.

The initialization method easiest to remember is

vec = vector(,10); #the same as "vec = vector(length = 10);"

The values of vec are: "[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE" (logical mode) by default.

But after setting a character value, like

vec[2] = 'abc'

vec becomes: "FALSE" "abc" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE" "FALSE"", which is of the character mode.

Here's my way to find file names that contain some content that I'm interested in, just a single bash line that nicely handles spaces in filenames too:

find . -name \*.xml | while read i; do grep '<?xml' "$i" >/dev/null; [ $? == 0 ] && echo $i; done

Below is an overhaul of Luda's answer with the following changes:

• the accessory view is automatically sized to the width of the application frame

• the deprecated constant UIBarButtonItemStyleBordered is avoided

• the "Done" button is instantiated as a UIBarButtonSystemItemDone

Currently the "Done" button is centered in the accessory view. You can position it at left or right by deleting the space on the pertinent side.

I have omitted a "Cancel" button because the default keyboard doesn't have one either. If you do want a "Cancel" button, I suggest that you instantiate it as a UIBarButtonSystemItemCancel and that you make sure you're not discarding the original value in your text field. The "Cancel" behavior implemented in Luda's answer, which overwrites the value with a blank string, may not be what you want.

- (void)viewDidLoad {
  [super viewDidLoad];
  float appWidth = CGRectGetWidth([UIScreen mainScreen].applicationFrame);
  UIToolbar *accessoryView = [[UIToolbar alloc]
                              initWithFrame:CGRectMake(0, 0, appWidth, 0.1 * appWidth)];
  UIBarButtonItem *space = [[UIBarButtonItem alloc]
                            initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
                            target:nil
                            action:nil];
  UIBarButtonItem *done = [[UIBarButtonItem alloc]
                           initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                           target:self
                           action:@selector(selectDoneButton)];
  accessoryView.items = @[space, done, space];
  self.valueField.inputAccessoryView = accessoryView;
}

- (void)selectDoneButton {
  [self.valueField resignFirstResponder];
}

For more information about building accessory views, see the Apple documentation on custom views for data input. You will probably want to consult the reference pages on UIToolbar and UIBarButtonItem as well.

Disable back buttton in android

@Override
public void onBackPressed() {
    return;
}

You can use ajax and jquery to solve this problem:

<script>
    function getData() {
        $.ajax({
            url : "/urlpattern",
            type : "post",
            success : function(data) {
                alert("success");
            } 
        });
    }
</script>
<form method="POST">
    <button name="data" type="button" onclick="getData()">Click</button>
</form>

You can use a deferred object to make a fluid design that works well in webkit browsers. Webkit browsers will fire resize event for each pixel the window is resized, unlike FF and IE which fire the event only once for each resize. As a result, you have no control over the order in which the functions bound to your window resize event will execute. Something like this solves the problem:

var resizeQueue = new $.Deferred(); //new is optional but it sure is descriptive
resizeQueue.resolve();

function resizeAlgorithm() {
//some resize code here
}

$(window).resize(function() {
    resizeQueue.done(resizeAlgorithm);
});

This will serialize the execution of your code so that it executes as you intended it to. Beware of pitfalls when passing object methods as callbacks to a deferred. Once such method is executed as a callback to deferred, the 'this' reference will be overwritten with reference to the deferred object and will no longer refer to the object the method belongs to.

Try restarting your computer if you just installed SQL Server and there's no choice in the SQL Server Installation Center to install SQL Server Management Studio.

This choice (see image below) only appeared for me after I installed SQL Server, then restarted my computer:

You can try this:

df['2nd'] = pd.to_numeric(df['2nd'].str.replace(',', ''))
df['CTR'] = pd.to_numeric(df['CTR'].str.replace('%', ''))

The element that you posted looks like it's just copy-pasted from the Google Maps embed feature.

If you'd like to drop markers for the locations that you have, you'll need to write some JavaScript to do so. I'm learning how to do this as well.

Check out the following: https://developers.google.com/maps/documentation/javascript/overlays

It has several examples and code samples that can be easily re-used and adapted to fit your current problem.

A div is a block element and by default 100% wide. You should just have to set the textarea width to 100%.

You can do this very easy, look my Supervisor recipe:

- name: Setup Supervisor jobs files
  template:
    src: job.conf.j2
    dest: "/etc/supervisor/conf.d/{{ item.job }}.conf"
    owner: root
    group: root
    force: yes
    mode: 0644
  with_items:
    - { job: bender, arguments: "-m 64", instances: 3 }
    - { job: mailer, arguments: "-m 1024", instances: 2 }
  notify: Ensure Supervisor is restarted

job.conf.j2:

[program:{{ item.job }}]
user=vagrant
command=/usr/share/nginx/vhosts/parclick.com/app/console rabbitmq:consumer {{ item.arguments }} {{ item.job }} -e prod
process_name=%(program_name)s_%(process_num)02d
numprocs={{ item.instances }}
autostart=true
autorestart=true
stderr_logfile=/var/log/supervisor/{{ item.job }}.stderr.log
stdout_logfile=/var/log/supervisor/{{ item.job }}.stdout.log

Output:

TASK [Supervisor : Setup Supervisor jobs files] ********************************
changed: [loc.parclick.com] => (item={u'instances': 3, u'job': u'bender', u'arguments': u'-m 64'})
changed: [loc.parclick.com] => (item={u'instances': 2, u'job': u'mailer', u'arguments': u'-m 1024'})

Enjoy!

This means that somewhere else in your code, you have something like:

sum = 0

Which shadows the builtin sum (which is callable) with an int (which isn't).

A great way of handling this is with regular expressions.

string modifiedString = Regex.Replace(originalString, @"(\r\n)|\n|\r", "<br/>");

This will replace any of the 3 legal types of newline with the html tag.

Not every List implementation supports the add() method.

One common example is the List returned by Arrays.asList(): it is documented not to support any structural modification (i.e. removing or adding elements) (emphasis mine):

Returns a fixed-size list backed by the specified array.

Even if that's not the specific List you're trying to modify, the answer still applies to other List implementations that are either immutable or only allow some selected changes.

You can find out about this by reading the documentation of UnsupportedOperationException and List.add(), which documents this to be an "(optional operation)". The precise meaning of this phrase is explained at the top of the List documentation.

As a workaround you can create a copy of the list to a known-modifiable implementation like ArrayList:

seeAlso = new ArrayList<>(seeAlso);

Indeed there is.

chmod a+x is relative to the current state and just sets the x flag. So a 640 file becomes 751 (or 750?), a 644 file becomes 755.

chmod 755, however, sets the mask as written: rwxr-xr-x, no matter how it was before. It is equivalent to chmod u=rwx,go=rx.

Add one more line after initializing file object

File fnew = new File("../playlist/" + existingPlaylist.getText() + ".txt");
fnew.createNewFile();

You are trying to load a XIB named DetailViewController, but no such XIB exists or it's not member of your current target.

In pyspark 2.4.4

1) group_by_dataframe.count().filter("`count` >= 10").orderBy('count', ascending=False)

2) from pyspark.sql.functions import desc
   group_by_dataframe.count().filter("`count` >= 10").orderBy('count').sort(desc('count'))

No need to import in 1) and 1) is short & easy to read,
So I prefer 1) over 2)

$("document").ready({
    $("ul.galleria li:first-child img").click(function(){alert('i work click triggered'});
}); 

$("document").ready(function() { 
    $("ul.galleria li:first-child img").trigger('click'); 
}); 

just make sure the click handler is added prior to the trigger event in the call stack sequence.

  $("document").ready(function() { 
        $("ul.galleria li:first-child img").trigger('click'); 
    }); 

   $("document").ready({
        $("ul.galleria li:first-child img").click(function(){alert('i fail click triggered'});
    }); 

I did a little experiment to see which of these methods

• string.startswith('hello')
• string.rfind('hello') == 0
• string.rpartition('hello')[0] == ''
• string.rindex('hello') == 0

are most efficient to return whether a certain string begins with another string.

Here is the result of one of the many test runs I've made, where each list is ordered to show the least time it took (in seconds) to parse 5 million of each of the above expressions during each iteration of the while loop I used:

['startswith: 1.37', 'rpartition: 1.38', 'rfind: 1.62', 'rindex: 1.62']
['startswith: 1.28', 'rpartition: 1.44', 'rindex: 1.67', 'rfind: 1.68']
['startswith: 1.29', 'rpartition: 1.42', 'rindex: 1.63', 'rfind: 1.64']
['startswith: 1.28', 'rpartition: 1.43', 'rindex: 1.61', 'rfind: 1.62']
['rpartition: 1.48', 'startswith: 1.48', 'rfind: 1.62', 'rindex: 1.67']
['startswith: 1.34', 'rpartition: 1.43', 'rfind: 1.64', 'rindex: 1.64']
['startswith: 1.36', 'rpartition: 1.44', 'rindex: 1.61', 'rfind: 1.63']
['startswith: 1.29', 'rpartition: 1.37', 'rindex: 1.64', 'rfind: 1.67']
['startswith: 1.34', 'rpartition: 1.44', 'rfind: 1.66', 'rindex: 1.68']
['startswith: 1.44', 'rpartition: 1.41', 'rindex: 1.61', 'rfind: 2.24']
['startswith: 1.34', 'rpartition: 1.45', 'rindex: 1.62', 'rfind: 1.67']
['startswith: 1.34', 'rpartition: 1.38', 'rindex: 1.67', 'rfind: 1.74']
['rpartition: 1.37', 'startswith: 1.38', 'rfind: 1.61', 'rindex: 1.64']
['startswith: 1.32', 'rpartition: 1.39', 'rfind: 1.64', 'rindex: 1.61']
['rpartition: 1.35', 'startswith: 1.36', 'rfind: 1.63', 'rindex: 1.67']
['startswith: 1.29', 'rpartition: 1.36', 'rfind: 1.65', 'rindex: 1.84']
['startswith: 1.41', 'rpartition: 1.44', 'rfind: 1.63', 'rindex: 1.71']
['startswith: 1.34', 'rpartition: 1.46', 'rindex: 1.66', 'rfind: 1.74']
['startswith: 1.32', 'rpartition: 1.46', 'rfind: 1.64', 'rindex: 1.74']
['startswith: 1.38', 'rpartition: 1.48', 'rfind: 1.68', 'rindex: 1.68']
['startswith: 1.35', 'rpartition: 1.42', 'rfind: 1.63', 'rindex: 1.68']
['startswith: 1.32', 'rpartition: 1.46', 'rfind: 1.65', 'rindex: 1.75']
['startswith: 1.37', 'rpartition: 1.46', 'rfind: 1.74', 'rindex: 1.75']
['startswith: 1.31', 'rpartition: 1.48', 'rfind: 1.67', 'rindex: 1.74']
['startswith: 1.44', 'rpartition: 1.46', 'rindex: 1.69', 'rfind: 1.74']
['startswith: 1.44', 'rpartition: 1.42', 'rfind: 1.65', 'rindex: 1.65']
['startswith: 1.36', 'rpartition: 1.44', 'rfind: 1.64', 'rindex: 1.74']
['startswith: 1.34', 'rpartition: 1.46', 'rfind: 1.61', 'rindex: 1.74']
['startswith: 1.35', 'rpartition: 1.56', 'rfind: 1.68', 'rindex: 1.69']
['startswith: 1.32', 'rpartition: 1.48', 'rindex: 1.64', 'rfind: 1.65']
['startswith: 1.28', 'rpartition: 1.43', 'rfind: 1.59', 'rindex: 1.66']

I believe that it is pretty obvious from the start that the startswith method would come out the most efficient, as returning whether a string begins with the specified string is its main purpose.

What surprises me is that the seemingly impractical string.rpartition('hello')[0] == '' method always finds a way to be listed first, before the string.startswith('hello') method, every now and then. The results show that using str.partition to determine if a string starts with another string is more efficient then using both rfind and rindex.

Another thing I've noticed is that string.rindex('hello') == 0 and string.rindex('hello') == 0 have a good battle going on, each rising from fourth to third place, and dropping from third to fourth place, which makes sense, as their main purposes are the same.

Here is the code:

from time import perf_counter

string = 'hello world'
places = dict()

while True:
    start = perf_counter()
    for _ in range(5000000):
        string.startswith('hello')
    end = perf_counter()
    places['startswith'] = round(end - start, 2)

    start = perf_counter()
    for _ in range(5000000):
        string.rfind('hello') == 0
    end = perf_counter()
    places['rfind'] = round(end - start, 2)

    start = perf_counter()
    for _ in range(5000000):
        string.rpartition('hello')[0] == ''
    end = perf_counter()
    places['rpartition'] = round(end - start, 2)

    start = perf_counter()
    for _ in range(5000000):
        string.rindex('hello') == 0
    end = perf_counter()
    places['rindex'] = round(end - start, 2)
    
    print([f'{b}: {str(a).ljust(4, "4")}' for a, b in sorted(i[::-1] for i in places.items())])

There is no difference for a simple object without methods as in your example. However, there is a big difference when you start adding methods to your object.

Literal way:

function Obj( prop ) { 
    return { 
        p : prop, 
        sayHello : function(){ alert(this.p); }, 
    }; 
} 

Prototype way:

function Obj( prop ) { 
    this.p = prop; 
} 
Obj.prototype.sayHello = function(){alert(this.p);}; 

Both ways allow creation of instances of Obj like this:

var foo = new Obj( "hello" ); 

However, with the literal way, you carry a copy of the sayHello method within each instance of your objects. Whereas, with the prototype way, the method is defined in the object prototype and shared between all object instances. If you have a lot of objects or a lot of methods, the literal way can lead to quite big memory waste.

environment.plst file loads first on MAC so put the path on it.

For 1st time use, use the following command

export PATH=$PATH: /path/to/set

using System.Drawing;
using System.Drawing.Imaging;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;

public void ScreenshotByElement()
{
    IWebDriver driver = new FirefoxDriver();
    String baseURL = "www.google.com/"; //url link
    String filePath = @"c:\\img1.png";      

    driver.Navigate().GoToUrl(baseURL);
    var remElement = driver.FindElement(By.Id("Butterfly"));
    Point location = remElement.Location;

    var screenshot = (driver as FirefoxDriver).GetScreenshot();
    using (MemoryStream stream = new MemoryStream(screenshot.AsByteArray))
    {
        using (Bitmap bitmap = new Bitmap(stream))
        {
            RectangleF part = new RectangleF(location.X, location.Y, remElement.Size.Width, remElement.Size.Height);
            using (Bitmap bn = bitmap.Clone(part, bitmap.PixelFormat))
            {
                bn.Save(filePath, ImageFormat.Png);                        
            }
        }
    }
}

There are several libraries available solving this problem, but the simplest is probably to use Boost Tokenizer:

#include <iostream>
#include <string>
#include <boost/tokenizer.hpp>
#include <boost/foreach.hpp>

typedef boost::tokenizer<boost::char_separator<char> > tokenizer;

std::string str("denmark;sweden;india;us");
boost::char_separator<char> sep(";");
tokenizer tokens(str, sep);

BOOST_FOREACH(std::string const& token, tokens)
{
    std::cout << "<" << *tok_iter << "> " << "\n";
}

Four years passed, Google gave me this answer. With the standard C++11 (aka C++0x) there is actually a new pleasant way of doing this (at the price of breaking backward compatibility): the new auto keyword. It saves you the pain of having to explicitly specify the type of the iterator to use (repeating the vector type again), when it is obvious (to the compiler), which type to use. With v being your vector, you can do something like this:

for ( auto i = v.begin(); i != v.end(); i++ ) {
    std::cout << *i << std::endl;
}

C++11 goes even further and gives you a special syntax for iterating over collections like vectors. It removes the necessity of writing things that are always the same:

for ( auto &i : v ) {
    std::cout << i << std::endl;
}

To see it in a working program, build a file auto.cpp:

#include <vector>
#include <iostream>

int main(void) {
    std::vector<int> v = std::vector<int>();
    v.push_back(17);
    v.push_back(12);
    v.push_back(23);
    v.push_back(42);
    for ( auto &i : v ) {
        std::cout << i << std::endl;
    }
    return 0;
}

As of writing this, when you compile this with g++, you normally need to set it to work with the new standard by giving an extra flag:

g++ -std=c++0x -o auto auto.cpp

Now you can run the example:

$ ./auto
17
12
23
42

Please note that the instructions on compiling and running are specific to gnu c++ compiler on Linux, the program should be platform (and compiler) independent.

What you're looking for is called a watchpoint.

Usage

(gdb) watch foo: watch the value of variable foo

(gdb) watch *(int*)0x12345678: watch the value pointed by an address, casted to whatever type you want

(gdb) watch a*b + c/d: watch an arbitrarily complex expression, valid in the program's native language

Watchpoints are of three kinds:

• watch: gdb will break when a write occurs
• rwatch: gdb will break wnen a read occurs
• awatch: gdb will break in both cases

You may choose the more appropriate for your needs.

For more information, check this out.

I got a similar error and hit this page while searching the solution.

With Qt this error can happen if you forget to add the QT_WRAP_CPP( ... ) step in your build to run meta object compiler (moc). Including the Qt header is not sufficient.

I have changed min date property of date time picker by using this

$('#date').data("DateTimePicker").minDate(startDate);

I hope this one help to someone !

Say you had some URL that gave you JSON data like:

{'field': 'value'}

...and you had a similar URL except it used JSONP, to which you passed the callback function name 'myCallback' (usually done by giving it a query parameter called 'callback', e.g. http://example.com/dataSource?callback=myCallback). Then it would return:

myCallback({'field':'value'})

...which is not just an object, but is actually code that can be executed. So if you define a function elsewhere in your page called myFunction and execute this script, it will be called with the data from the URL.

The cool thing about this is: you can create a script tag and use your URL (complete with callback parameter) as the src attribute, and the browser will run it. That means you can get around the 'same-origin' security policy (because browsers allow you to run script tags from sources other than the domain of the page).

This is what jQuery does when you make an ajax request (using .ajax with 'jsonp' as the value for the dataType property). E.g.

$.ajax({
  url: 'http://example.com/datasource',
  dataType: 'jsonp',
  success: function(data) {
    // your code to handle data here
  }
});

Here, jQuery takes care of the callback function name and query parameter - making the API identical to other ajax calls. But unlike other types of ajax requests, as mentioned, you're not restricted to getting data from the same origin as your page.

I had similar issue and found very simple way to add a library to the project.

1. Create folder "libs" in the root of your project.
2. Copy JAR file into that folder.
3. Go back to Android Studio, locate your JAR file and right click it, choose "Add As Library...", it will ask you only to which module you want to add it, well choose "app".

Now in your "app" module you can use classes from that JAR, it will be able to locate and add "import" declarations automatically and compile just okay. The only issue might be is that it adds dependency with absolute path like:

compile files('/home/user/proj/theproj/libs/thelib-1.2.3.jar')

in your "app/build.gradle".

Hope that helps!

Here goes a straightforward example:

# Do something, or tell me why it failed
my_update_function <- function(x){
    tryCatch(
        # This is what I want to do...
        {
        y = x * 2
        return(y)
        },
        # ... but if an error occurs, tell me what happened: 
        error=function(error_message) {
            message("This is my custom message.")
            message("And below is the error message from R:")
            message(error_message)
            return(NA)
        }
    )
}

If you also want to capture a "warning", just add warning= similar to the error= part.

Generally i prefer the lambda syntax with LINQ, but Join is one example where i prefer the query syntax - purely for readability.

Nonetheless, here is the equivalent of your above query (i think, untested):

var query = db.Categories         // source
   .Join(db.CategoryMaps,         // target
      c => c.CategoryId,          // FK
      cm => cm.ChildCategoryId,   // PK
      (c, cm) => new { Category = c, CategoryMaps = cm }) // project result
   .Select(x => x.Category);  // select result

You might have to fiddle with the projection depending on what you want to return, but that's the jist of it.

The following from the msdn site should I think help provide some native functionality for what you are looking for. Please note it is specified for Windows 8. One such example from the site is listed below.

JsonValue jsonValue = JsonValue.Parse("{\"Width\": 800, \"Height\": 600, \"Title\": \"View from 15th Floor\", \"IDs\": [116, 943, 234, 38793]}");
double width = jsonValue.GetObject().GetNamedNumber("Width");
double height = jsonValue.GetObject().GetNamedNumber("Height");
string title = jsonValue.GetObject().GetNamedString("Title");
JsonArray ids = jsonValue.GetObject().GetNamedArray("IDs");

It utilizes the Windows.Data.JSON namespace.

I would suggest not to create general debug and release tasks if the project is really something that gets compiled and so results in files. You should go with file-tasks which is quite doable in your example, as you state, that your output goes into different directories. Say your project just compiles a test.c file to out/debug/test.out and out/release/test.out with gcc you could setup your project like this:

WAYS = ['debug', 'release']
FLAGS = {}
FLAGS['debug'] = '-g'
FLAGS['release'] = '-O'
def out_dir(way)
  File.join('out', way)
end
def out_file(way)
  File.join(out_dir(way), 'test.out')
end
WAYS.each do |way|
  desc "create output directory for #{way}"
  directory out_dir(way)

  desc "build in the #{way}-way"
  file out_file(way) => [out_dir(way), 'test.c'] do |t|
    sh "gcc #{FLAGS[way]} -c test.c -o #{t.name}"
  end
end
desc 'build all ways'
task :all => WAYS.map{|way|out_file(way)}

task :default => [:all]

This setup can be used like:

rake all # (builds debug and release)
rake debug # (builds only debug)
rake release # (builds only release)

This does a little more as asked for, but shows my points:

1. output directories are created, as necessary.
2. the files are only recompiled if needed (this example is only correct for the simplest of test.c files).
3. you have all tasks readily at hand if you want to trigger the release build or the debug build.
4. this example includes a way to also define small differences between debug and release-builds.
5. no need to reenable a build-task that is parametrized with a global variable, because now the different builds have different tasks. the codereuse of the build-task is done by reusing the code to define the build-tasks. see how the loop does not execute the same task twice, but instead created tasks, that can later be triggered (either by the all-task or be choosing one of them on the rake commandline).

Disclaimer: I am from 42matters, who provides this data already on https://42matters.com/api , feel free to check it out or drop us a line.

As lenik mentioned there are open-source libraries that already help with obtaining some data from GPlay. If you want to build one yourself you can try to parse the Google Play App page, but you should pay attention to the following:

• Make sure the URL you are trying to parse is not blocked in robots.txt - e.g. https://play.google.com/robots.txt
• Make sure that you are not doing it too often, Google will throttle and potentially blacklist you if you are doing it too much.
• Send a correct User-Agent header to actually show you are a bot
• The page of an app is big - make sure you accept gzip and request the mobile version
• GPlay website is not an API, it doesn't care that you parse it so it will change over time. Make sure you handle changes - e.g. by having test to make sure you get what you expected.

So that in mind getting one page metadata is a matter of fetching the page html and parsing it properly. With JSoup you can try:

      HttpClient httpClient = HttpClientBuilder.create().build();
      HttpGet request = new HttpGet(crawlUrl);
      HttpResponse rsp = httpClient.execute(request);

      int statusCode = rsp.getStatusLine().getStatusCode();

      if (statusCode == 200) {
           String content = EntityUtils.toString(rsp.getEntity());    
           Document doc = Jsoup.parse(content);
           //parse content, whatever you need
           Element price = doc.select("[itemprop=price]").first();
      }      

For that very simple use case that should get you started. However, the moment you want to do more interesting stuff, things get complicated:

• Search is forbidden in robots.
• Keeping app metadata up-to-date is hard to do. There are more than 2.2m apps, if you want to refresh their metadata daily there are 2.2 requests/day, which will 1) get blocked immediately, 2) costs a lot of money - pessimistic 220gb data transfer per day if one app is 100k
• How do you discover new apps
• How do you get pricing in each country, translations of each language

The list goes on. If you don't want to do all this by yourself, you can consider 42matters API, which supports lookup and search, top google charts, advanced queries and filters. And this for 35 languages and more than 50 countries.

[2]:

For anyone who's looking to not implement this themselves, Sindresorhus has create a utility that works in the browser and has the header-to-mime mappings for most documents you could want.

https://github.com/sindresorhus/file-type

You could combine Vitim.us's suggestion of only reading in the first X bytes to avoid loading everything into memory with using this utility (example in es6):

import fileType from 'file-type'; // or wherever you load the dependency

const blob = file.slice(0, fileType.minimumBytes);

const reader = new FileReader();
reader.onloadend = function(e) {
  if (e.target.readyState !== FileReader.DONE) {
    return;
  }

  const bytes = new Uint8Array(e.target.result);
  const { ext, mime } = fileType.fromBuffer(bytes);

  // ext is the desired extension and mime is the mimetype
};
reader.readAsArrayBuffer(blob);

the split() method takes a regular expression as an argument

var longest = (arr) => {
  let sum = 0
  arr.map((e) => {
    sum = e.length > sum ? e.length : sum
  })
  return sum
}

it can be work

The problem is this block:

using (var sr = new StreamReader(ms))
{
    Console.WriteLine(sr.ReadToEnd());                        
}

When the StreamReader is closed (after leaving the using), it closes it's underlying stream as well, so now the MemoryStream is closed. When the StreamWriter gets closed, it tries to flush everything to the MemoryStream, but it is closed.

You should consider not putting the StreamReader in a using block.

Several of these things did not work for me... however, this did. Might help someone else in the future. Here is the CSS:

    .img-area {
     display: block;
     padding: 0px 0 0 0px;
     text-indent: 0;
     width: 100%;
     background-size: 100% 95%;
     background-repeat: no-repeat;
     background-image: url("https://yourimage.png");

    }

The format defined in RFC2617 is credentials = auth-scheme #auth-param. So, in agreeing with fumanchu, I think the corrected authorization scheme would look like

Authorization: FIRE-TOKEN apikey="0PN5J17HBGZHT7JJ3X82", hash="frJIUN8DYpKDtOLCwo//yllqDzg="

Where FIRE-TOKEN is the scheme and the two key-value pairs are the auth parameters. Though I believe the quotes are optional (from Apendix B of p7-auth-19)...

auth-param = token BWS "=" BWS ( token / quoted-string )

I believe this fits the latest standards, is already in use (see below), and provides a key-value format for simple extension (if you need additional parameters).

Some examples of this auth-param syntax can be seen here...

http://tools.ietf.org/html/draft-ietf-httpbis-p7-auth-19#section-4.4

https://developers.google.com/youtube/2.0/developers_guide_protocol_clientlogin

https://developers.google.com/accounts/docs/AuthSub#WorkingAuthSub

Create a .pgpass file in the home directory of the account that pg_dump will run as.

The format is:

hostname:port:database:username:password

Then, set the file's mode to 0600. Otherwise, it will be ignored.

chmod 600 ~/.pgpass

See the Postgresql documentation libpq-pgpass for more details.

I had to modify some bits for this to work for me. I am using Bootstrap 3 and jQuery 2

// Javascript to enable link to tab
var hash = document.location.hash;
var prefix = "!";
if (hash) {
    hash = hash.replace(prefix,'');
    var hashPieces = hash.split('?');
    activeTab = $('[role="tablist"] a[href=' + hashPieces[0] + ']');
    activeTab && activeTab.tab('show');
}

// Change hash for page-reload
$('[role="tablist"] a').on('shown.bs.tab', function (e) {
    window.location.hash = e.target.hash.replace("#", "#" + prefix);
});

This works in all browsers:

window.location.href = '...';

If you wanted to change the page without it reflecting in the browser back history, you can do:

window.location.replace('...');

If You want get date defer from using table and column.

SELECT TO_DATE( TO_CHAR(COLUMN_NAME_1, 'YYYY-MM-DD'), 'YYYY-MM-DD') - 
       TO_DATE(TO_CHAR(COLUMN_NAME_2, 'YYYY-MM-DD') , 'YYYY-MM-DD')  AS DATEDIFF       
FROM TABLE_NAME;

The public keyword is used only when declaring a class method.

Since you're declaring a simple function and not a class you need to remove public from your code.

    final Pattern pattern = Pattern.compile("tag\\](.+?)\\[/tag");
    final Matcher matcher = pattern.matcher("[tag]String I want to extract[/tag]");
    matcher.find();
    System.out.println(matcher.group(1));

def func(*args): 
    pass

When you define a function this way, *args will be array of arguments passed to the function. This allows your function to work without knowing ahead of time how many arguments are going to be passed to it.

You do this with keyword arguments too, using **kwargs:

def func2(**kwargs): 
    pass

See: Arbitrary argument lists

In your case, you've defined a class which is acting like a dictionary. The dict.pop method is defined as pop(key[, default]).

Your method doesn't use the default parameter. But, by defining your method with *args and passing *args to dict.pop(), you are allowing the caller to use the default parameter.

In other words, you should be able to use your class's pop method like dict.pop:

my_a = a()
value1 = my_a.pop('key1')       # throw an exception if key1 isn't in the dict
value2 = my_a.pop('key2', None) # return None if key2 isn't in the dict

I came across this question, and the answers here didn't work for me; i couldn't figure out why i can't login and got the above error.

It turns out that postgresql saves usernames lowercase, but during authentication it uses both upper- and lowercase.

CREATE USER myNewUser WITH PASSWORD 'passWord';

will create a user with the username 'mynewuser' and password 'passWord'.

This means you have to authenticate with 'mynewuser', and not with 'myNewUser'. For a newbie in pgsql like me, this was confusing. I hope it helps others who run into this problem.

For your problem, the solution might be to attach CDN hosted by google with certain library:

https://developers.google.com/speed/libraries/devguide

Also, you can add this at the bottom of page (just before </body>):

<script type="text/javascript">
(function() {
    var script = document.createElement('script')
    script.setAttribute("type", "text/javascript")
    script.setAttribute("src", "https://ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js")
    document.getElementsByTagName("head")[0].appendChild(script)
})();
</script>

However, this is risky in my opinion. You have an asynchronous call for jquery, thus your jquery has to wait until it loads (ie. $(document).ready won't work in this case). So my answer would be: use a CDN like google suggests; put your javascript on the bottom just before </body>; and, ignore flags from profilers.

You maybe wanted to do the following:

foreach($user->data as $mydata)

    {
         echo $mydata->name . "\n";
         foreach($mydata->values as $values)
         {
              echo $values->value . "\n";
         }
    }        

This depends on what you mean by "get the range of selection". If you mean getting the range address (like "A1:B1") then use the Address property of Selection object - as Michael stated Selection object is much like a Range object, so most properties and methods works on it.

Sub test()
    Dim myString As String
    myString = Selection.Address
End Sub

using iTextSharp.text.pdf;
using iTextSharp.text.pdf.parser;
using System.IO;

public string ReadPdfFile(string fileName)
{
    StringBuilder text = new StringBuilder();

    if (File.Exists(fileName))
    {
        PdfReader pdfReader = new PdfReader(fileName);

        for (int page = 1; page <= pdfReader.NumberOfPages; page++)
        {
            ITextExtractionStrategy strategy = new SimpleTextExtractionStrategy();
            string currentText = PdfTextExtractor.GetTextFromPage(pdfReader, page, strategy);

            currentText = Encoding.UTF8.GetString(ASCIIEncoding.Convert(Encoding.Default, Encoding.UTF8, Encoding.Default.GetBytes(currentText)));
            text.Append(currentText);
        }
        pdfReader.Close();
    }
    return text.ToString();
}

The value of a button element isn't the displayed text, contrary to what happens to input elements of type button.

You can do this :

 b.appendChild(document.createTextNode('test value'));

Demonstration

Although in your case, just plain initialization will do, there's a trick to wrap the array into a struct (which can be initialized after declaration).

For example:

struct foo {
  GLfloat arr[10];
};
...
struct foo foo;
foo = (struct foo) { .arr = {1.0, ... } };

You must set Access-Control-Allow-Credentials: true, if you want to use "cookie" via "Credentials"

app.all('*', function(req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Credentials', true);
  res.header('Access-Control-Allow-Methods', 'PUT, GET, POST, DELETE, OPTIONS');
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  next();
});

I had this challenge when I was working on a Rails 6 application using Bootstrap 4.

My challenge was that I didn't want this styling to override the default link styling in the application.

So I created a CSS file called custom.css or custom.scss.

And then defined a new CSS rule with the following properties:

.remove_link_colour {
  a, a:hover, a:focus, a:active {
      color: inherit;
      text-decoration: none;
  }
}

Then I called this rule wherever I needed to override the default link styling.

<div class="product-card__buttons">
  <button class="btn btn-success remove_link_colour" type="button"><%= link_to 'Edit', edit_product_path(product) %></button>
  <button class="btn btn-danger remove_link_colour" type="button"><%= link_to 'Destroy', product, method: :delete, data: { confirm: 'Are you sure?' } %></button>
</div>

This solves the issue of overriding the default link styling and removes the default colour, hover, focus, and active styling in the buttons only in places where I call the CSS rule.

That's all.

I hope this helps

Ignacio Vazquez-Abrams' approved answer is quite right. It is, however, from the Python 2 generation. An update for the now-current Python 3 would be:

class MC(type):
  def __repr__(self):
    return 'Wahaha!'

class C(object, metaclass=MC):
    pass

print(C)

If you want code that runs across both Python 2 and Python 3, the six module has you covered:

from __future__ import print_function
from six import with_metaclass

class MC(type):
  def __repr__(self):
    return 'Wahaha!'

class C(with_metaclass(MC)):
    pass

print(C)

Finally, if you have one class that you want to have a custom static repr, the class-based approach above works great. But if you have several, you'd have to generate a metaclass similar to MC for each, and that can get tiresome. In that case, taking your metaprogramming one step further and creating a metaclass factory makes things a bit cleaner:

from __future__ import print_function
from six import with_metaclass

def custom_class_repr(name):
    """
    Factory that returns custom metaclass with a class ``__repr__`` that
    returns ``name``.
    """
    return type('whatever', (type,), {'__repr__': lambda self: name})

class C(with_metaclass(custom_class_repr('Wahaha!'))): pass

class D(with_metaclass(custom_class_repr('Booyah!'))): pass

class E(with_metaclass(custom_class_repr('Gotcha!'))): pass

print(C, D, E)

prints:

Wahaha! Booyah! Gotcha!

Metaprogramming isn't something you generally need everyday—but when you need it, it really hits the spot!

You only need a minimal change; single-quote the here-document delimiter after <<.

cat <<'EOF' >> brightup.sh

or equivalently backslash-escape it:

cat <<\EOF >>brightup.sh

Without quoting, the here document will undergo variable substitution, backticks will be evaluated, etc, like you discovered.

If you need to expand some, but not all, values, you need to individually escape the ones you want to prevent.

cat <<EOF >>brightup.sh
#!/bin/sh
# Created on $(date # : <<-- this will be evaluated before cat;)
echo "\$HOME will not be evaluated because it is backslash-escaped"
EOF

will produce

#!/bin/sh
# Created on Fri Feb 16 11:00:18 UTC 2018
echo "$HOME will not be evaluated because it is backslash-escaped"

As suggested by @fedorqui, here is the relevant section from man bash:

Here Documents

This type of redirection instructs the shell to read input from the current source until a line containing only delimiter (with no trailing blanks) is seen. All of the lines read up to that point are then used as the standard input for a command.

The format of here-documents is:

      <<[-]word
              here-document
      delimiter

No parameter expansion, command substitution, arithmetic expansion, or pathname expansion is performed on word. If any characters in word are quoted, the delimiter is the result of quote removal on word, and the lines in the here-document are not expanded. If word is unquoted, all lines of the here-document are subjected to parameter expansion, command substitution, and arithmetic expansion. In the latter case, the character sequence \<newline> is ignored, and \ must be used to quote the characters \, $, and `.

You can use sort() function. sort() exists in algorithm header file

        #include<bits/stdc++.h>
        using namespace std;


        int main()
        {
            ios::sync_with_stdio(false);
            string str = "sharlock";

            sort(str.begin(), str.end());
            cout<<str<<endl;

            return 0;
        }

Output:

achklors

Please follow below step to do some processing after Application Context get loaded i.e application is ready to serve.

1. Create below annotation i.e

   @Retention(RetentionPolicy.RUNTIME) @Target(value= {ElementType.METHOD, ElementType.TYPE}) public @interface AfterApplicationReady {}

2.Create Below Class which is a listener which get call on application ready state.

    @Component
    public class PostApplicationReadyListener implements ApplicationListener<ApplicationReadyEvent> {

    public static final Logger LOGGER = LoggerFactory.getLogger(PostApplicationReadyListener.class);
    public static final String MODULE = PostApplicationReadyListener.class.getSimpleName();

    @Override
    public void onApplicationEvent(ApplicationReadyEvent event) {
        try {
            ApplicationContext context = event.getApplicationContext();
            String[] beans = context.getBeanNamesForAnnotation(AfterAppStarted.class);

            LOGGER.info("bean found with AfterAppStarted annotation are : {}", Arrays.toString(beans));

            for (String beanName : beans) {
                Object bean = context.getBean(beanName);
                Class<?> targetClass = AopUtils.getTargetClass(bean);
                Method[] methods = targetClass.getMethods();
                for (Method method : methods) {
                    if (method.isAnnotationPresent(AfterAppStartedComplete.class)) {

                        LOGGER.info("Method:[{} of Bean:{}] found with AfterAppStartedComplete Annotation.", method.getName(), beanName);

                        Method currentMethod = bean.getClass().getMethod(method.getName(), method.getParameterTypes());

                        LOGGER.info("Going to invoke method:{} of bean:{}", method.getName(), beanName);

                        currentMethod.invoke(bean);

                        LOGGER.info("Invocation compeleted method:{} of bean:{}", method.getName(), beanName);
                    }
                }
            }
        } catch (Exception e) {
            LOGGER.warn("Exception occured : ", e);
        }
    }
}

Finally when you start your Spring application just before log stating application started your listener will be called.

Adding both android:layout_centerInParent and android:layout_centerVertical work for me to center ImageView both vertical and horizontal:

<ImageView
    ..
    android:layout_centerInParent="true"
    android:layout_centerVertical="true"
    />

You can use the Ildasm.exe (IL Disassembler) to examine the assembly's metadata, which contains the fully qualified name.

Following MSDN: https://msdn.microsoft.com/en-us/library/2exyydhb(v=vs.110).aspx

They're nearly identical but bash has more features – sh is (more or less) an older subset of bash.

sh often means the original Bourne shell, which predates bash (Bourne *again* shell), and was created in 1977. But, in practice, it may be better to think of it as a highly-cross-compatible shell compliant with the POSIX standard from 1992.

Scripts that start with #!/bin/sh or use the sh shell usually do so for backwards compatibility. Any unix/linux OS will have an sh shell. On Ubuntu sh often invokes dash and on MacOS it's a special POSIX version of bash. These shells may be preferred for standard-compliant behavior, speed or backwards compatibility.

bash is newer than the original sh, adds more features, and seeks to be backwards compatible with sh. In theory, sh programs should run in bash. bash is available on nearly all linux/unix machines and usually used by default – with the notable exception of MacOS defaulting to zsh as of Catalina (10.15). FreeBSD, by default, does not come with bash installed.

Follow the instructions here, it solved my problem.

you have to run the command like as follow; patch -p0 --dry-run < path/to/your/patchFile/yourPatch.patch

Step 1: Get the latest aws-java-sdk

<!-- https://mvnrepository.com/artifact/org.apache.hadoop/hadoop-aws -->
<dependency>
<groupId>com.amazonaws</groupId>
<artifactId>aws-java-sdk</artifactId>
<version>1.11.660</version>
</dependency>

Step 2: The correct imports

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.ListObjectsRequest;
import com.amazonaws.services.s3.model.ObjectListing;

If you are sure the bucket exists, Specified key does not exists error would mean the bucketname is not spelled correctly ( contains slash or special characters). Refer the documentation for naming convention.

The document quotes:

If the requested object is available in the bucket and users are still getting the 404 NoSuchKey error from Amazon S3, check the following:

Confirm that the request matches the object name exactly, including the capitalization of the object name. Requests for S3 objects are case sensitive. For example, if an object is named myimage.jpg, but Myimage.jpg is requested, then requester receives a 404 NoSuchKey error. Confirm that the requested path matches the path to the object. For example, if the path to an object is awsexamplebucket/Downloads/February/Images/image.jpg, but the requested path is awsexamplebucket/Downloads/February/image.jpg, then the requester receives a 404 NoSuchKey error. If the path to the object contains any spaces, be sure that the request uses the correct syntax to recognize the path. For example, if you're using the AWS CLI to download an object to your Windows machine, you must use quotation marks around the object path, similar to: aws s3 cp "s3://awsexamplebucket/Backup Copy Job 4/3T000000.vbk". Optionally, you can enable server access logging to review request records in further detail for issues that might be causing the 404 error.

AWSCredentials credentials = new BasicAWSCredentials(AWS_ACCESS_KEY_ID, AWS_SECRET_KEY);
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withRegion(Regions.US_EAST_1).build();
ObjectListing objects = s3Client.listObjects("bigdataanalytics");
System.out.println(objects.getObjectSummaries());

paramiko finally worked for me after adding additional line, which is really important one (line 3):

import paramiko

p = paramiko.SSHClient()
p.set_missing_host_key_policy(paramiko.AutoAddPolicy())   # This script doesn't work for me unless this line is added!
p.connect("server", port=22, username="username", password="password")
stdin, stdout, stderr = p.exec_command("your command")
opt = stdout.readlines()
opt = "".join(opt)
print(opt)

Make sure that paramiko package is installed. Original source of the solution: Source

I am too late, I know but this is one of the easiest workaround I've found:

    $('body').on('touchstart','*',function(){   //listen to touch
        var jQueryElement=$(this);  
        var element = jQueryElement.get(0); // find tapped HTML element
        if(!element.click){
            var eventObj = document.createEvent('MouseEvents');
            eventObj.initEvent('click',true,true);
            element.dispatchEvent(eventObj);
        }
    });

This does not only works for links(anchor tags) but for other elements also. Hope this helps.

These days with jQuery 1.6.1 or above it is recommended that .prop() be used when setting boolean attributes/properties.

$("#fieldName").prop("readonly", true);

Simple solution to drop all the table at once from terminal.

This involved few steps inside your mysql shell (not a one step solution though), this worked me and saved my day.

Worked for Server version: 5.6.38 MySQL Community Server (GPL)

Steps I followed:

 1. generate drop query using concat and group_concat.
 2. use database
 3. turn off / disable foreign key constraint check (SET FOREIGN_KEY_CHECKS = 0;), 
 4. copy the query generated from step 1
 5. re enable foreign key constraint check (SET FOREIGN_KEY_CHECKS = 1;)
 6. run show table

MySQL shell

$ mysql -u root -p
Enter password: ****** (your mysql root password)
mysql> SYSTEM CLEAR;
mysql> SELECT CONCAT('DROP TABLE IF EXISTS `', GROUP_CONCAT(table_name SEPARATOR '`, `'), '`;') AS dropquery FROM information_schema.tables WHERE table_schema = 'emall_duplicate';
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| dropquery                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| DROP TABLE IF EXISTS `admin`, `app`, `app_meta_settings`, `commission`, `commission_history`, `coupon`, `email_templates`, `infopages`, `invoice`, `m_pc_xref`, `member`, `merchant`, `message_templates`, `mnotification`, `mshipping_address`, `notification`, `order`, `orderdetail`, `pattributes`, `pbrand`, `pcategory`, `permissions`, `pfeatures`, `pimage`, `preport`, `product`, `product_review`, `pspecification`, `ptechnical_specification`, `pwishlist`, `role_perms`, `roles`, `settings`, `test`, `testanother`, `user_perms`, `user_roles`, `users`, `wishlist`; |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> USE emall_duplicate;
Database changed
mysql> SET FOREIGN_KEY_CHECKS = 0;                                                                                                                                                   Query OK, 0 rows affected (0.00 sec)

// copy and paste generated query from step 1
mysql> DROP TABLE IF EXISTS `admin`, `app`, `app_meta_settings`, `commission`, `commission_history`, `coupon`, `email_templates`, `infopages`, `invoice`, `m_pc_xref`, `member`, `merchant`, `message_templates`, `mnotification`, `mshipping_address`, `notification`, `order`, `orderdetail`, `pattributes`, `pbrand`, `pcategory`, `permissions`, `pfeatures`, `pimage`, `preport`, `product`, `product_review`, `pspecification`, `ptechnical_specification`, `pwishlist`, `role_perms`, `roles`, `settings`, `test`, `testanother`, `user_perms`, `user_roles`, `users`, `wishlist`;
Query OK, 0 rows affected (0.18 sec)

mysql> SET FOREIGN_KEY_CHECKS = 1;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW tables;
Empty set (0.01 sec)

mysql> 

{
int main(void);

should be

int main(void)
{

Then I let you fix the next compilation errors of your program...

I used docker-entrypoint-initdb.d approach (Thanks to @Kuhess) But in my case I want to create my DB based on some parameters I defined in .env file so I did these

1) First I define .env file something like this in my docker root project directory

MYSQL_DATABASE=my_db_name
MYSQL_USER=user_test
MYSQL_PASSWORD=test
MYSQL_ROOT_PASSWORD=test
MYSQL_PORT=3306

2) Then I define my docker-compose.yml file. So I used the args directive to define my environment variables and I set them from .env file

version: '2'
services:
### MySQL Container
    mysql:
        build:
            context: ./mysql
            args:
                - MYSQL_DATABASE=${MYSQL_DATABASE}
                - MYSQL_USER=${MYSQL_USER}
                - MYSQL_PASSWORD=${MYSQL_PASSWORD}
                - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
        ports:
            - "${MYSQL_PORT}:3306"

3) Then I define a mysql folder that includes a Dockerfile. So the Dockerfile is this

FROM mysql:5.7
RUN chown -R mysql:root /var/lib/mysql/

ARG MYSQL_DATABASE
ARG MYSQL_USER
ARG MYSQL_PASSWORD
ARG MYSQL_ROOT_PASSWORD

ENV MYSQL_DATABASE=$MYSQL_DATABASE
ENV MYSQL_USER=$MYSQL_USER
ENV MYSQL_PASSWORD=$MYSQL_PASSWORD
ENV MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD

ADD data.sql /etc/mysql/data.sql
RUN sed -i 's/MYSQL_DATABASE/'$MYSQL_DATABASE'/g' /etc/mysql/data.sql
RUN cp /etc/mysql/data.sql /docker-entrypoint-initdb.d

EXPOSE 3306

4) Now I use mysqldump to dump my db and put the data.sql inside mysql folder

mysqldump -h <server name> -u<user> -p <db name> > data.sql

The file is just a normal sql dump file but I add 2 lines at the beginning so the file would look like this

--
-- Create a database using `MYSQL_DATABASE` placeholder
--
CREATE DATABASE IF NOT EXISTS `MYSQL_DATABASE`;
USE `MYSQL_DATABASE`;

-- Rest of queries
DROP TABLE IF EXISTS `x`;
CREATE TABLE `x` (..)
LOCK TABLES `x` WRITE;
INSERT INTO `x` VALUES ...;
...
...
...

So what happening is that I used "RUN sed -i 's/MYSQL_DATABASE/'$MYSQL_DATABASE'/g' /etc/mysql/data.sql" command to replace the MYSQL_DATABASE placeholder with the name of my DB that I have set it in .env file.

|- docker-compose.yml
|- .env
|- mysql
     |- Dockerfile
     |- data.sql

Now you are ready to build and run your container

Consider "axesOptions" to be array of objects with an object format being {:field_type => 2, :fields => [1,3,4]}

function getFieldOptions(axesOptions,choice){
  var fields=[]
  axesOptions.each(function(item){
    if(item.field_type == choice)
        fields= hashToArray(item.fields)
  });
  return fields;
}

The correct SQL connection string for SQL with specify port is use comma between ip address and port number like following pattern: xxx.xxx.xxx.xxx,yyyy

I know this is very old question, however there is a very lightweight (~.5Kb) JavaScript library that effectively "patches" the inconsistent firing of keyboard event handlers when using the DOM API.

The library is Keydrown.

Here's the operative code sample that has worked well for my purposes by just changing the key on which to set the listener:

kd.P.down(function () {
  console.log('The "P" key is being held down!');
});

kd.P.up(function () {
  console.clear();
});

// This update loop is the heartbeat of Keydrown
kd.run(function () {
  kd.tick();
});

I've incorporated Keydrown into my client-side JavaScript for a proper pause animation in a Red Light Green Light game I'm writing. You can view the entire game here. (Note: If you're reading this in the future, the game should be code complete and playable :-D!)

I hope this helps.

My version without a loop would be like this:

echo implode(
    "\n", 
    array_map(
         function ($k, $v) { 
             return "$k is at $v"; 
         }, 
         array_keys($page), 
         array_values($page)
    )
);

This cannot be done with pure HTML/JS, you will need CSS

CSS:

button {
     width: 100%;
     height: 100%;
}

Substitute 100% with required size

This can be done in many ways

The other answers cover the 2 most common approaches, Xinclude and XML external entities. Microsoft has a really great writeup on why one should prefer Xinclude, as well as several example implementations. I've quoted the comparison below:

Per http://msdn.microsoft.com/en-us/library/aa302291.aspx

Why XInclude?

The first question one may ask is "Why use XInclude instead of XML external entities?" The answer is that XML external entities have a number of well-known limitations and inconvenient implications, which effectively prevent them from being a general-purpose inclusion facility. Specifically:

• An XML external entity cannot be a full-blown independent XML document—neither standalone XML declaration nor Doctype declaration is allowed. That effectively means an XML external entity itself cannot include other external entities.
• An XML external entity must be well formed XML (not so bad at first glance, but imagine you want to include sample C# code into your XML document).
• Failure to load an external entity is a fatal error; any recovery is strictly forbidden.
• Only the whole external entity may be included, there is no way to include only a portion of a document. -External entities must be declared in a DTD or an internal subset. This opens a Pandora's Box full of implications, such as the fact that the document element must be named in Doctype declaration and that validating readers may require that the full content model of the document be defined in DTD among others.

The deficiencies of using XML external entities as an inclusion mechanism have been known for some time and in fact spawned the submission of the XML Inclusion Proposal to the W3C in 1999 by Microsoft and IBM. The proposal defined a processing model and syntax for a general-purpose XML inclusion facility.

Four years later, version 1.0 of the XML Inclusions, also known as Xinclude, is a Candidate Recommendation, which means that the W3C believes that it has been widely reviewed and satisfies the basic technical problems it set out to solve, but is not yet a full recommendation.

Another good site which provides a variety of example implementations is https://www.xml.com/pub/a/2002/07/31/xinclude.html. Below is a common use case example from their site:

<book xmlns:xi="http://www.w3.org/2001/XInclude">

  <title>The Wit and Wisdom of George W. Bush</title>

  <xi:include href="malapropisms.xml"/>

  <xi:include href="mispronunciations.xml"/>

  <xi:include href="madeupwords.xml"/>

</book>

UPDATE 7/3/2014: As of now, jquery-latest.js is no longer being updated. From the jQuery blog:

We know that http://code.jquery.com/jquery-latest.js is abused because of the CDN statistics showing it’s the most popular file. That wouldn’t be the case if it was only being used by developers to make a local copy.

We have decided to stop updating this file, as well as the minified copy, keeping both files at version 1.11.1 forever.

The Google CDN team has joined us in this effort to prevent inadvertent web breakage and no longer updates the file at http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js. That file will stay locked at version 1.11.1 as well.

The following, now moot, answer is preserved here for historical reasons.

Don't do this. Seriously, don't.

Linking to major versions of jQuery does work, but it's a bad idea -- whole new features get added and deprecated with each decimal update. If you update jQuery automatically without testing your code COMPLETELY, you risk an unexpected surprise if the API for some critical method has changed.

Here's what you should be doing: write your code using the latest version of jQuery. Test it, debug it, publish it when it's ready for production.

Then, when a new version of jQuery rolls out, ask yourself: Do I need this new version in my code? For instance, is there some critical browser compatibility that didn't exist before, or will it speed up my code in most browsers?

If the answer is "no", don't bother updating your code to the latest jQuery version. Doing so might even add NEW errors to your code which didn't exist before. No responsible developer would automatically include new code from another site without testing it thoroughly.

There's simply no good reason to ALWAYS be using the latest version of jQuery. The old versions are still available on the CDNs, and if they work for your purposes, then why bother replacing them?

A secondary, but possibly more important, issue is caching. Many people link to jQuery on a CDN because many other sites do, and your users have a good chance of having that version already cached.

The problem is, caching only works if you provide a full version number. If you provide a partial version number, far-future caching doesn't happen -- because if it did, some users would get different minor versions of jQuery from the same URL. (Say that the link to 1.7 points to 1.7.1 one day and 1.7.2 the next day. How will the browser make sure it's getting the latest version today? Answer: no caching.)

In fact here's a breakdown of several options and their expiration settings...

http://code.jquery.com/jquery-latest.min.js (no cache)

http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js (1 hour)

http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js (1 hour)

http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js (1 year)

So, by linking to jQuery this way, you're actually eliminating one of the major reasons to use a CDN in the first place.

http://code.jquery.com/jquery-latest.min.js may not always give you the version you expect, either. As of this writing, it links to the latest version of jQuery 1.x, even though jQuery 2.x has been released as well. This is because jQuery 1.x is compatible with older browsers including IE 6/7/8, and jQuery 2.x is not. If you want the latest version of jQuery 2.x, then (for now) you need to specify that explicitly.

The two versions have the same API, so there is no perceptual difference for compatible browsers. However, jQuery 1.x is a larger download than 2.x.

If you can, use a List<Subject> instead of Subject[]... this will let you do Student.Subject.Add(new Subject()). If that is not possible, you'll have to resize your array... look at Array.Resize() at http://msdn.microsoft.com/en-us/library/bb348051.aspx

Please close the file if its still open on your computer, then try running the python code. I hope it works

You can set the type of error reporting you need in php.ini or by using the error_reporting() function on top of your script.

mysql -u root -p;

And mysql will ask for the password

I guess that what you want to do is an UNION of both tables.

If both tables have the same columns then you can just do

SELECT category_id, col1, col2, col3
  FROM items_a
UNION 
SELECT category_id, col1, col2, col3 
  FROM items_b

Else, you might have to do something like

SELECT category_id, col1, col2, col3
  FROM items_a 
UNION 
SELECT category_id, col_1 as col1, col_2 as col2, col_3 as col3
  FROM items_b

Here is a super simple one liner based on Eric's answer

function adjust(color, amount) {
    return '#' + color.replace(/^#/, '').replace(/../g, color => ('0'+Math.min(255, Math.max(0, parseInt(color, 16) + amount)).toString(16)).substr(-2));
}

Examples:

adjust('#ffffff', -20) => "#ebebeb"
adjust('000000', 20) => "#141414"

The a == b expression invokes A.__eq__, since it exists. Its code includes self.value == other. Since int's don't know how to compare themselves to B's, Python tries invoking B.__eq__ to see if it knows how to compare itself to an int.

If you amend your code to show what values are being compared:

class A(object):
    def __eq__(self, other):
        print("A __eq__ called: %r == %r ?" % (self, other))
        return self.value == other
class B(object):
    def __eq__(self, other):
        print("B __eq__ called: %r == %r ?" % (self, other))
        return self.value == other

a = A()
a.value = 3
b = B()
b.value = 4
a == b

it will print:

A __eq__ called: <__main__.A object at 0x013BA070> == <__main__.B object at 0x013BA090> ?
B __eq__ called: <__main__.B object at 0x013BA090> == 3 ?

Without examples of the dataset of staging this is a shot in the dark, but have you tried something like this?

update PRODUCTION p,
       staging s
set p.name = s.name  
    p.count = s.count
where p.id = s.id

This would work assuming the id column matches on both tables.

When calling a function, the word "this" is a reference to the object that called the function.

In your example, it is a reference to the anchor element. At the other end, the function call then access member variables of the element through the parameter that was passed.

If you are using tortoise git you can right-click on a file and git a diff by: Right-clicking on the first file and through the tortoisegit submenu select "Diff later" Then on the second file you can also right-click on this, go to the tortoisegit submenu and then select "Diff with yourfilenamehere.txt"

Like you say, you need to show some code. :-)

A stack overflow error usually happens when your function calls nest too deeply. See the Stack Overflow Code Golf thread for some examples of how this happens (though in the case of that question, the answers intentionally cause stack overflow).

For cases where you also wish to have the option of setting 'b' to None:

def p(self, **kwargs):
    b = kwargs.get('b', self.a)
    print b

It's usually describes as for optional add-on software packagessource, or anything that isn't part of the base system. Only some distributions use it, others simply use /usr/local.

use DECIMAL() or NUMERIC() as they are fixed precision and scale numbers.

SELECT fullName, 
       CAST(totalBal as DECIMAL(9,2)) _totalBal
FROM client_info 
ORDER BY _totalBal DESC

== => !=

=== => !==

Equal and its opposite

      <div class="overflow-auto p-3 mb-3 mb-md-0 mr-md-3 bg-light" style="max-width: 260px; max-height: 100px;">
        <strong>Column 0 </strong><br>
        <strong>Column 1</strong><br>
        <strong>Column 2</strong><br>
        <strong>Column 3</strong><br>
        <strong>Column 4</strong><br>
        <strong>Column 5</strong><br>
        <strong>Column 6</strong><br>
        <strong>Column 7</strong><br>
        <strong>Column 8</strong><br>
        <strong>Column 9</strong><br>
        <strong>Column 10</strong><br>
        <strong>Column 11</strong><br>
        <strong>Column 12</strong><br>
        <strong>Column 13</strong><br>
      </div>
    </div>

I agree with Icarus (would have commented if I could), but instead of using a CustomObject class, I would use a Dictionary (in case Facebook adds something).

private class MyFacebookClass
{
    public IList<IDictionary<string, string>> data { get; set; }
}

or

private class MyFacebookClass
{
    public IList<IDictionary<string, object>> data { get; set; }
}

use this way also..

<h1>My Application</h1>
<select [(ngModel)]="selectedValue">
     <option *ngFor="let c of countries" value="{{c.id}}">{{c.name}}</option>
 </select>

Suppose we want to move a disc from A to C through B then:

1. move a smaller disc to B.
2. move another disc to C.
3. move B to C.
4. move from A to B.
5. move all from C to A.

If you repeat all the above steps, the disc will transfer.

Additional data (in case you have more questions):

FOO: {
       for my $i ( @listone ){
          for my $j ( @listtwo ){
                 if ( cond( $i,$j ) ){

                    last FOO;  # --->
                                   # |
                 }                 # |
          }                        # |
       }                           # |
 } # <-------------------------------

after trying to fix a similar problem my self, where I had changed from @PrimaryKey(autoGenerate = true) to int UUID, I couldn't find how to write my migration so I changed the table name, it's an easy fix, and ok if you working with a personal/small app

Using this shell command it will work:

SPRING_PROFILES_ACTIVE=test gradle clean bootRun

Sadly this is the simplest way I have found. It sets environment property for that call and then runs the app.

You can use the dir step, example:

dir("folder") {
    sh "pwd"
}

The folder can be relative or absolute path.

To downplay the "magic" of this issue a little bit. You need an Internet connection after you make those changes. If for some reason required libraries cannot by downloaded, instead of giving an appropriate message (like "Failed to fetch libraries") you will simply get the same build error. Was struggling with this for an hour before realizing that my company's VPN blocked the repo.

If you want to convert all elements of a to a single numeric vector and length(a) is greater than 1 (OK, even if it is of length 1), you could unlist the object first and then convert.

as.numeric(unlist(a))
# [1]  10  38  66 101 129 185 283 374

Bear in mind that there aren't any quality controls here. Also, X$Days a mighty odd name.

ArrayList are not type safe whereas List<T> are type safe. Simple :).

For getting the path of running jar file I have studied the above solutions and tried all methods which exist some difference each other. If these code are running in Eclipse IDE they all should be able to find the path of the file including the indicated class and open or create an indicated file with the found path.

But it is tricky, when run the runnable jar file directly or through the command line, it will be failed as the path of jar file gotten from the above methods will give an internal path in the jar file, that is it always gives a path as

rsrc:project-name (maybe I should say that it is the package name of the main class file - the indicated class)

I can not convert the rsrc:... path to an external path, that is when run the jar file outside the Eclipse IDE it can not get the path of jar file.

The only possible way for getting the path of running jar file outside Eclipse IDE is

System.getProperty("java.class.path")

this code line may return the living path (including the file name) of the running jar file (note that the return path is not the working directory), as the java document and some people said that it will return the paths of all class files in the same directory, but as my tests if in the same directory include many jar files, it only return the path of running jar (about the multiple paths issue indeed it happened in the Eclipse).

Edit: Sometimes you want to use webpack simply as a module bundler for a simple web project - to keep your own code organized. The following solution is for those who just want an external library to work as expected inside their modules - without using a lot of time diving into webpack setups. (Edited after -1)

Quick and simple (es6) solution if you’re still struggling or want to avoid externals config / additional webpack plugin config:

<script src="cdn/jquery.js"></script>
<script src="cdn/underscore.js"></script>
<script src="etc.js"></script>
<script src="bundle.js"></script>

inside a module:

const { jQuery: $, Underscore: _, etc } = window;

If you are using Visual Studio Community 2015 and trying to Install GLUT you should place the header file glut.h in C:\Program Files (x86)\Windows Kits\8.1\Include\um\gl

yqritc's answer worked perfectly for me. I was using Kotlin however so here is the equivalent of that.

class ItemOffsetDecoration : RecyclerView.ItemDecoration  {

    // amount to add to padding
    private val _itemOffset: Int

    constructor(itemOffset: Int) {
        _itemOffset = itemOffset
    }

    constructor(@NonNull context: Context, @DimenRes itemOffsetId: Int){
       _itemOffset = context.resources.getDimensionPixelSize(itemOffsetId)
    }

    /**
     * Applies padding to all sides of the [Rect], which is the container for the view
     */
    override fun getItemOffsets(outRect: Rect, view: View, parent: RecyclerView,state: RecyclerView.State) {
        super.getItemOffsets(outRect, view, parent, state)
        outRect.set(_itemOffset, _itemOffset, _itemOffset, _itemOffset)
    }
}

everything else is the same.

You can run npx webpack. The npx command, which ships with Node 8.2/npm 5.2.0 or higher, runs the webpack binary (./node_modules/.bin/webpack) of the webpack package. Source of info: https://webpack.js.org/guides/getting-started/

In this answer, I will consider practical examples.

The first one, is of pandas.concat.

The second one, of merging dataframes from the index of one and the column of another one.

1. pandas.concat

Considering the following DataFrames with the same column names:

Preco2018 with size (8784, 5)

Preco 2019 with size (8760, 5)

That have the same column names.

You can combine them using pandas.concat, by simply

import pandas as pd

frames = [Preco2018, Preco2019]

df_merged = pd.concat(frames)

Which results in a DataFrame with the following size (17544, 5)

If you want to visualize, it ends up working like this

(Source)

2. Merge by Column and Index

In this part, I will consider a specific case: If one wants to merge the index of one dataframe and the column of another dataframe.

Let's say one has the dataframe Geo with 54 columns, being one of the columns the Date Data, which is of type datetime64[ns].

And the dataframe Price that has one column with the price and the index corresponds to the dates

In this specific case, to merge them, one uses pd.merge

merged = pd.merge(Price, Geo, left_index=True, right_on='Data')

Which results in the following dataframe

For the record, alignment "commands" shouldn't work on a SPAN, because it is an in-line tag, not a block-level tag. Things like alignment, margin, padding, etc won't work on an in-line tag because the point of inline is not to disrupt the text flow.

CSS divides HTML tags up into two groups: in-line and block-level. Search "css block vs inline" and a great article shows up...

http://www.webdesignfromscratch.com/html-css/css-block-and-inline/

(Understanding core CSS principles is a key to it not being quite so annoying)

Use ampersand to specify the parent selector.

SCSS syntax:

p {
    margin: 2em auto;

    > a {
        color: red;
    }

    &:before {
        content: "";
    }

    &:after {
        content: "* * *";
    }
}

That single last line worked perfectly @GSerg.

The other function was what I had been working on but I don't like having to resort to UDF's unless absolutely necessary.

I had been trying a combination of excel and vba and had got this to work - but its clunky compared with your answer.

strArea = Sheets("Oper St Report CC").Range("cc_rev").CurrentRegion.Address
cc_rev_rows = "=ROWS(" & strArea & ")"
Range("cc_rev_count").Formula = cc_rev_rows

mmap is great if you have multiple processes accessing data in a read only fashion from the same file, which is common in the kind of server systems I write. mmap allows all those processes to share the same physical memory pages, saving a lot of memory.

mmap also allows the operating system to optimize paging operations. For example, consider two programs; program A which reads in a 1MB file into a buffer creating with malloc, and program B which mmaps the 1MB file into memory. If the operating system has to swap part of A's memory out, it must write the contents of the buffer to swap before it can reuse the memory. In B's case any unmodified mmap'd pages can be reused immediately because the OS knows how to restore them from the existing file they were mmap'd from. (The OS can detect which pages are unmodified by initially marking writable mmap'd pages as read only and catching seg faults, similar to Copy on Write strategy).

mmap is also useful for inter process communication. You can mmap a file as read / write in the processes that need to communicate and then use synchronization primitives in the mmap'd region (this is what the MAP_HASSEMAPHORE flag is for).

One place mmap can be awkward is if you need to work with very large files on a 32 bit machine. This is because mmap has to find a contiguous block of addresses in your process's address space that is large enough to fit the entire range of the file being mapped. This can become a problem if your address space becomes fragmented, where you might have 2 GB of address space free, but no individual range of it can fit a 1 GB file mapping. In this case you may have to map the file in smaller chunks than you would like to make it fit.

Another potential awkwardness with mmap as a replacement for read / write is that you have to start your mapping on offsets of the page size. If you just want to get some data at offset X you will need to fixup that offset so it's compatible with mmap.

And finally, read / write are the only way you can work with some types of files. mmap can't be used on things like pipes and ttys.

I made it work with this:

.element {
   transition: height 3s ease-out, width 5s ease-in;
}

Don't know the nature of your app, but I have seen this error manifested multiple times because of a connection pool leak, so that would be worth checking out. On Linux, socket connections consume file descriptors as well as file system files. Just a thought.

Here's the version like the ggplot2 one I gave only in base R. I copied some from @nullglob.

generate the data

carrots <- rnorm(100000,5,2)
cukes <- rnorm(50000,7,2.5)

You don't need to put it into a data frame like with ggplot2. The drawback of this method is that you have to write out a lot more of the details of the plot. The advantage is that you have control over more details of the plot.

## calculate the density - don't plot yet
densCarrot <- density(carrots)
densCuke <- density(cukes)
## calculate the range of the graph
xlim <- range(densCuke$x,densCarrot$x)
ylim <- range(0,densCuke$y, densCarrot$y)
#pick the colours
carrotCol <- rgb(1,0,0,0.2)
cukeCol <- rgb(0,0,1,0.2)
## plot the carrots and set up most of the plot parameters
plot(densCarrot, xlim = xlim, ylim = ylim, xlab = 'Lengths',
     main = 'Distribution of carrots and cucumbers', 
     panel.first = grid())
#put our density plots in
polygon(densCarrot, density = -1, col = carrotCol)
polygon(densCuke, density = -1, col = cukeCol)
## add a legend in the corner
legend('topleft',c('Carrots','Cucumbers'),
       fill = c(carrotCol, cukeCol), bty = 'n',
       border = NA)

You can make it even simplier, if you want to avoid extra structures.

service:
  mappings:
    key1: value1
    key2: value2

@Configuration
@EnableConfigurationProperties
public class ServiceConfigurationProperties {

  @Bean
  @ConfigurationProperties(prefix = "service.mappings")
  public Map<String, String> serviceMappings() {
    return new HashMap<>();
  }

}

And then use it as usual, for example with a constructor:

public class Foo {

  private final Map<String, String> serviceMappings;

  public Foo(Map<String, String> serviceMappings) {
    this.serviceMappings = serviceMappings;
  }

}

To expand on Trevor's answer, you can push a single tag or all of your tags at once.

Push a Single Tag

git push <remote> <tag>

This is a summary of the relevant documentation that explains this (some command options omitted for brevity):

git push [[<repository> [<refspec>…]]

<refspec>...

The format of a <refspec> parameter is…the source ref <src>, followed by a colon :, followed by the destination ref <dst>…

The <dst> tells which ref on the remote side is updated with this push…If :<dst> is omitted, the same ref as <src> will be updated…

tag <tag> means the same as refs/tags/<tag>:refs/tags/<tag>.

Push All of Your Tags at Once

git push --tags <remote>
# Or
git push <remote> --tags

Here is a summary of the relevant documentation (some command options omitted for brevity):

git push [--all | --mirror | --tags] [<repository> [<refspec>…]]

--tags

All refs under refs/tags are pushed, in addition to refspecs explicitly listed on the command line.

Here's what I use to a list modified files suitable for command line substitution in bash

git diff --numstat -b -w | grep ^[1-9] | cut -f 3

To edit the list use $(cmd) substitution.

vi $(git diff --numstat -b -w | grep ^[1-9] | cut -f 3)

Doesn't work if the file names have spaces. I tried to use sed to escape or quote the spaces and the output list looked right, but the $() substitution still did not behave as desired.

Backgrounds jobs are expensive to setup and are not reusable. PowerShell MVP Oisin Grehan has a good example of PowerShell multi-threading.

(10/25/2010 site is down, but accessible via the Web Archive).

I'e used adapted Oisin script for use in a data loading routine here:

http://rsdd.codeplex.com/SourceControl/changeset/view/a6cd657ea2be#Invoke-RSDDThreaded.ps1

Try CLPP library. It's simple and flexible library for command line parameters parsing. Header-only and cross-platform. Uses ISO C++ and Boost C++ libraries only. IMHO it is easier than Boost.Program_options.

Library: http://sourceforge.net/projects/clp-parser

26 October 2010 - new release 2.0rc. Many bugs fixed, full refactoring of the source code, documentation, examples and comments have been corrected.

You can get it like this also.

filepath = os.path.abspath(f.name)

The usual approach is to uppercase the strings or lower case them for the lookups and comparisons. For example:

>>> "hello".upper() == "HELLO".upper()
True
>>> 

You use

#main_text .title {
  /* Properties */
}

If you just put a space between the selectors, styles will apply to all children (and children of children) of the first. So in this case, any child element of #main_text with the class name title. If you use > instead of a space, it will only select the direct child of the element, and not children of children, e.g.:

#main_text > .title {
  /* Properties */
}

Either will work in this case, but the first is more typically used.

For people that don't like horrible looking code with php tags blasted everywhere...

<?php
if (have_posts()):
  while (have_posts()) : the_post();
    the_content();
  endwhile;
else:
  echo '<p>Sorry, no posts matched your criteria.</p>';
endif;
?>

I've made an answer with some more details here : https://stackoverflow.com/a/11045462/592477

Or you can read it there ==>

When you use loadbalancing it means you have several instances of tomcat and you need to divide loads.

• If you're using session replication without sticky session : Imagine you have only one user using your web app, and you have 3 tomcat instances. This user sends several requests to your app, then the loadbalancer will send some of these requests to the first tomcat instance, and send some other of these requests to the secondth instance, and other to the third.
• If you're using sticky session without replication : Imagine you have only one user using your web app, and you have 3 tomcat instances. This user sends several requests to your app, then the loadbalancer will send the first user request to one of the three tomcat instances, and all the other requests that are sent by this user during his session will be sent to the same tomcat instance. During these requests, if you shutdown or restart this tomcat instance (tomcat instance which is used) the loadbalancer sends the remaining requests to one other tomcat instance that is still running, BUT as you don't use session replication, the instance tomcat which receives the remaining requests doesn't have a copy of the user session then for this tomcat the user begin a session : the user loose his session and is disconnected from the web app although the web app is still running.
• If you're using sticky session WITH session replication : Imagine you have only one user using your web app, and you have 3 tomcat instances. This user sends several requests to your app, then the loadbalancer will send the first user request to one of the three tomcat instances, and all the other requests that are sent by this user during his session will be sent to the same tomcat instance. During these requests, if you shutdown or restart this tomcat instance (tomcat instance which is used) the loadbalancer sends the remaining requests to one other tomcat instance that is still running, as you use session replication, the instance tomcat which receives the remaining requests has a copy of the user session then the user keeps on his session : the user continue to browse your web app without being disconnected, the shutdown of the tomcat instance doesn't impact the user navigation.

What is the difference between null and undefined??

A property when it has no definition, is undefined. null is an object. Its type is object. null is a special value meaning "no value. undefined is not an object, it's type is undefined.

You can declare a variable, set it to null, and the behavior is identical except that you'll see "null" printed out versus "undefined". You can even compare a variable that is undefined to null or vice versa, and the condition will be true:

 undefined == null
 null == undefined

Refer to JavaScript Difference between null and undefined for more detail.

and with your new edit yes

if (object == null)  does mean the same  if(!object)

when testing if object is false, they both only meet the condition when testing if false, but not when true

Check here: Javascript gotcha

Arrived here because my source repo had %20 in it which was creating local folders with %20 in them when using simplistic git clone <url>.

Easy solution:

git clone https://teamname.visualstudio.com/Project%20Name/_git/Repo%20Name "Repo Name"

For the lazy and the learning, to put it into your theme, Rfvgyhn's full code

<?php $category = get_the_category();
$firstCategory = $category[0]->cat_name; echo $firstCategory;?>

Well you can remove the third calendar instance.

GregorianCalendar c1 = new GregorianCalendar();
GregorianCalendar c2 = new GregorianCalendar();
c1.set(2000, 1, 1);
c2.set(2010,1, 1);
c2.add(GregorianCalendar.MILLISECOND, -1 * c1.getTimeInMillis());

Use the $( ... ) construct:

hash=$(genhash --use-ssl -s $IP -p 443 --url $URL | grep MD5 | grep -c $MD5)

You missed the * in front of NgIf (like we all have, dozens of times):

<div *ngIf="answer.accepted">&#10004;</div>

Without the *, Angular sees that the ngIf directive is being applied to the div element, but since there is no * or <template> tag, it is unable to locate a template, hence the error.

If you get this error with Angular v5:

Error: StaticInjectorError[TemplateRef]:
  StaticInjectorError[TemplateRef]:
    NullInjectorError: No provider for TemplateRef!

You may have <template>...</template> in one or more of your component templates. Change/update the tag to <ng-template>...</ng-template>.

Something like this should do the trick:

$(document).ready(function() {
    $('#toptitle').text(function(i, oldText) {
        return oldText === 'Profil' ? 'New word' : oldText;
    });
});

This only replaces the content when it is Profil. See text in the jQuery API.

I had the same issue with importing matplotlib.pylab with Python 3.5.1 on Win 64. Installing the Visual C++ Redistributable für Visual Studio 2015 from this links: https://www.microsoft.com/en-us/download/details.aspx?id=48145 fixed the missing DLLs.

I find it better and easier than downloading and pasting DLLs.

dynamic_cast uses RTTI. It can slow down your application, you can use modification of the visitor design pattern to achieve downcasting without RTTI http://arturx64.github.io/programming-world/2016/02/06/lazy-visitor.html

The accepted answer was a good start for me, but I kept getting the following error:

AssertionError: Not supported proxy scheme None

Fix to this was to specify the http:// in the proxy url thus:

http_proxy  = "http://194.62.145.248:8080"
https_proxy  = "https://194.62.145.248:8080"
ftp_proxy   = "10.10.1.10:3128"

proxyDict = {
              "http"  : http_proxy,
              "https" : https_proxy,
              "ftp"   : ftp_proxy
            }

I'd be interested as to why the original works for some people but not me.

Edit: I see the main answer is now updated to reflect this :)

You can use the following command to clear out ALL variables. Be careful because it you cannot get your variables back.

rm(list=ls(all=TRUE))

You can always do

git clone git://repo.org/fossproject.git && rm -rf fossproject/.git

Or you could figure out the exacting amount of hours and minutes and have that displayed by puttin it into the timer app that already exist in every iphone :)

If you need curly braces within a f-string template that can be formatted, you need to output a string containing two curly braces within a set of curly braces for the f-string:

css_template = f"{{tag}} {'{{'} margin: 0; padding: 0;{'}}'}"
for_p = css_template.format(tag="p")
# 'p { margin: 0; padding: 0;}'

Problems only surface when I am I trying to give the first loaded content an active state

Does this mean that you want to add a class to the first button?

$('.o-links').click(function(e) {   // ... }).first().addClass('O_Nav_Current'); 

instead of using IDs for the slider's items and resetting html contents you can use classes and indexes:

CSS:

.image-area {     width: 100%;     height: auto;     display: none; }  .image-area:first-of-type {     display: block; } 

JavaScript:

var $slides = $('.image-area'),     $btns = $('a.o-links');  $btns.on('click', function (e) {     var i = $btns.removeClass('O_Nav_Current').index(this);     $(this).addClass('O_Nav_Current');      $slides.filter(':visible').fadeOut(1000, function () {         $slides.eq(i).fadeIn(1000);     });      e.preventDefault();  }).first().addClass('O_Nav_Current'); 

http://jsfiddle.net/RmF57/

adb shell am broadcast -a android.intent.action.xxx

Mention xxx as the action that you mentioned in the manifest file.

There's also now this option: http://code.google.com/p/csharp-sqlite/ - a complete port of SQLite to C#.

I used this function to download pdf stream from server.

function printPdf(url) {
        var iframe = document.createElement('iframe');
        // iframe.id = 'pdfIframe'
        iframe.className='pdfIframe'
        document.body.appendChild(iframe);
        iframe.style.display = 'none';
        iframe.onload = function () {
            setTimeout(function () {
                iframe.focus();
                iframe.contentWindow.print();
                URL.revokeObjectURL(url)
                // document.body.removeChild(iframe)
            }, 1);
        };
        iframe.src = url;
        // URL.revokeObjectURL(url)
    }

If the datetime is in field (not a formula) then you can format it:

1. Right click on the field -> Format Editor
2. Date and Time tab
3. Select date/time formatting you desire (or click customize)

If the datetime is in a formula:

ToText({MyDate}, "dd-MMM-yyyy")
//Displays 31-Jan-2010

or

ToText({MyDate}, "dd-MM-yyyy")
//Displays 31-01-2010

or

ToText({MyDate}, "dd-MM-yy")
//Displays 31-01-10

etc...

Initiate the NodeList inside the for loop and you will get the desired output.

ArrayList<String> nodes = new ArrayList<String>();
 ArrayList list=new ArrayList();

        for(int i=0;i<PropertyNode.getLength()-1;i++){
            ArrayList NodeList=new ArrayList();
            Node childNode =  PropertyNode.item(i);
                NodeList Children = childNode.getChildNodes();

                if(Children!=null){
                    nodes.clear();
                    nodes.add("PropertyStart");
                    nodes.add(Children.item(3).getTextContent());
                    nodes.add(Children.item(7).getTextContent());
                    nodes.add(Children.item(9).getTextContent());
                    nodes.add(Children.item(11).getTextContent());
                    nodes.add(Children.item(13).getTextContent());
                    nodes.add("PropertyEnd");

                }   
                NodeList.addAll(nodes);
                list.add(NodeList);
        }

Explanation: NodeList is an object which remains same throughout the loop so adding same variable to list in a loop will actually add it only once. The loop is only adding its variables in single NodeList array hence you must be seeing

[/*list*/    [  /*NodeList*/   ]   ]

and NodeList contains [prostart, a,b,c,proend,prostart,d,e,f,proend ...]