I have async await working with webpack/babel build:

"devDependencies": {
    "babel-preset-stage-3": "^6.11.0"
}

.babelrc:

"presets": ["es2015", "stage-3"]

I finally found out how to do this! Basically you need to run adb shell first and then while you're in the shell run su, which will switch the shell to run as root!

$: adb shell
$: su

The one problem I still have is that sqlite3 is not installed so the command is not recognized.

Error 'Duplicate entry '338620-7' for key 2' on query. Default database

For this error :

set global sql_slave_skip_counter=1; 
start slave; 
show slave status\G

This worked for me

You can use the localeCompare() method.

string_a.localeCompare(string_b);

/* Expected Returns:

 0:  exact match

-1:  string_a < string_b

 1:  string_a > string_b

 */

Further Reading:

• MDN: String.prototype.localeCompare
• Stack Overflow - Is there a JavaScript strcmp()?
• Tutorials Point: JavaScript String - localeCompare() Method

You could also to check this page: Unicode Regular Expressions, as it contains some useful Unicode characters classes, like:

\p{Control}: an ASCII 0x00..0x1F or Latin-1 0x80..0x9F control character.

The best way to find the position of item in the list is by using Collections interface,

Eg,

List<Integer> sampleList = Arrays.asList(10,45,56,35,6,7);
Collections.binarySearch(sampleList, 56);

Output : 2

char ch='"';

System.out.println(ch + "String" + ch);

Or

System.out.println('"' + "ASHISH" + '"');

I will talk about some specific cases,

if you are using 'PageNotFound method' in HomeController like below

[Route("~/404")]
public ActionResult PageNotFound()
{
  return MyView();
}

it wouldn't work this. But you must clear Route tags like below,

//[Route("~/404")]
public ActionResult PageNotFound()
{
  return MyView();
}

And if you change it as method Name in web.config it works. However don't forget to do code like below in web.config

<customErrors mode="On">
  <error statusCode="404" redirect="~/PageNotFound" /> 
 *// it is not "~/404" because it is not accepted url in Route Tag like [Route("404")]*
</customErrors>

A slightly lighter task that doesn't unnecessarily copy files to a dir:

task downloadDependencies(type: Exec) {
    configurations.testRuntime.files
    commandLine 'echo', 'Downloaded all dependencies'
}

Updated for kotlin & gradle 6.2.0, with buildscript dependency resolution added:

fun Configuration.isDeprecated() = this is DeprecatableConfiguration && resolutionAlternatives != null

fun ConfigurationContainer.resolveAll() = this
  .filter { it.isCanBeResolved && !it.isDeprecated() }
  .forEach { it.resolve() }

tasks.register("downloadDependencies") {
  doLast {
    configurations.resolveAll()
    buildscript.configurations.resolveAll()
  }
}

I faced the same problem. Customers could submit a form and then multiple e-mail addresses will receive a mail message. If the response of the page takes too long, sometimes the button was pushed twice or even more times..

I tried disable the button in the onsubmit handler, but the form wasn't submitted at all. Above solutions work probably fine, but for me it was a little bit too tricky, so I decided to try something else.

To the left side of the submit button, I placed a second button, which is not displayed and is disabled at start up:

<button disabled class="btn btn-primary" type=button id="btnverzenden2" style="display: none"><span class="glyphicon glyphicon-refresh"></span> Sending mail</button>   
<button class="btn btn-primary" type=submit name=verzenden id="btnverzenden">Send</button>

In the onsubmit handler attached to the form, the 'real' submit is hidden and the 'fake' submit is shown with a message that the messages are being sent.

function checkinput // submit handler
{
    ..
    ...
    $("#btnverzenden").hide(); <= real submit button will be hidden
    $("#btnverzenden2").show(); <= fake submit button gets visible
    ...
    ..
}

This worked for us. I hope it will help you.

<xsl:if test="not contains(hhref,'1234')">

If I use exit() in a code and run it in the shell, it shows a message asking whether I want to kill the program or not. It's really disturbing. See here

But sys.exit() is better in this case. It closes the program and doesn't create any dialogue box.

I use my local ip for that i.e. 192.168.0.1 and it works.

Another way to do this is described below.

First, turn on iterative calculations on under File - Options - Formulas - Enable Iterative Calculation. Then set maximum iterations to 1000.

After doing this, use the following formula.

=If(D55="","",IF(C55="",NOW(),C55))

Once anything is typed into cell D55 (for this example) then C55 populates today's date and/or time depending on the cell format. This date/time will not change again even if new data is entered into cell C55 so it shows the date/time that the data was entered originally.

This is a circular reference formula so you will get a warning about it every time you open the workbook. Regardless, the formula works and is easy to use anywhere you would like in the worksheet.

If you google for javascript callback function example you will get Getting a better understanding of callback functions in JavaScript

This is how to do a callback function:

function f() {
    alert('f was called!');
}

function callFunction(func) {
    func();
}

callFunction(f);

You can call sortable on a <tbody> instead of on the individual rows.

<table>
    <tbody>
        <tr> 
            <td>1</td>
            <td>2</td>
        </tr>
        <tr>
            <td>3</td>
            <td>4</td> 
        </tr>
        <tr>
            <td>5</td>
            <td>6</td>
        </tr>  
    </tbody>    
</table>?

<script>
    $('tbody').sortable();
</script> 

$(function() {_x000D_
  $( "tbody" ).sortable();_x000D_
});

 _x000D_
table {_x000D_
    border-spacing: collapse;_x000D_
    border-spacing: 0;_x000D_
}_x000D_
td {_x000D_
    width: 50px;_x000D_
    height: 25px;_x000D_
    border: 1px solid black;_x000D_
}

 _x000D_
_x000D_
<link href="//code.jquery.com/ui/1.11.1/themes/smoothness/jquery-ui.css" rel="stylesheet">_x000D_
<script src="//code.jquery.com/jquery-1.11.1.js"></script>_x000D_
<script src="//code.jquery.com/ui/1.11.1/jquery-ui.js"></script>_x000D_
_x000D_
<table>_x000D_
    <tbody>_x000D_
        <tr>_x000D_
            <td>1</td>_x000D_
            <td>2</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>3</td>_x000D_
            <td>4</td>_x000D_
        </tr>_x000D_
        <tr> _x000D_
            <td>5</td>_x000D_
            <td>6</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>7</td>_x000D_
            <td>8</td>_x000D_
        </tr>_x000D_
        <tr>_x000D_
            <td>9</td> _x000D_
            <td>10</td>_x000D_
        </tr>  _x000D_
    </tbody>    _x000D_
</table>

Converting int64:

n := int64(32)
str := strconv.FormatInt(n, 10)

fmt.Println(str)
// Prints "32"

At run time every loaded class has an instance of a Class object. That is the object that is used as the shared lock object by static synchronized methods. (Any synchronized method or block has to lock on some shared object.)

You can also synchronize on this object manually if wanted (whether in a static method or not). These three methods behave the same, allowing only one thread at a time into the inner block:

class Foo {
    static synchronized void methodA() {
        // ...
    }

    static void methodB() {
        synchronized (Foo.class) {
            // ...
        }
    }

    static void methodC() {
        Object lock = Foo.class;
        synchronized (lock) {
            // ...
        }
    }
}

The intended purpose of static synchronized methods is when you want to allow only one thread at a time to use some mutable state stored in static variables of a class.

Nowadays, Java has more powerful concurrency features, in java.util.concurrent and its subpackages, but the core Java 1.0 constructs such as synchronized methods are still valid and usable.

1. Regex:

   /I bought.*sheep./
   

   Matches - the whole string till the end of line

   I bought sheep. I bought a sheep. I bought five sheep.

2. Regex:

   /I bought(.*)sheep./
   

   Matches - the whole string and also capture the sub string within () for further use

   I bought sheep. I bought a sheep. I bought five sheep.

   I boughtsheep. I bought a sheep. I bought fivesheep.

   Example using Javascript/Regex

   'I bought sheep. I bought a sheep. I bought five sheep.'.match(/I bought(.*)sheep./)[0];
   

   Output:

   "I bought sheep. I bought a sheep. I bought five sheep."

   'I bought sheep. I bought a sheep. I bought five sheep.'.match(/I bought(.*)sheep./)[1];
   

   Output:

   " sheep. I bought a sheep. I bought five "

What's wrong:

The definition of "nonrecursivecountcells" has no parameter named grid. You need to pass the type AND variable name to the function. You only passed the type.

Note if you use the name grid for the parameter, that name has nothing to do with your main() declaration of grid. You could have used any other name as well.

***Also you can't pass arrays as values.

How to fix:

The easy way to fix this is to pass a pointer to an array to the function "nonrecursivecountcells".

int nonrecursivecountcells(color[ROW_SIZE][COL_SIZE], int, int);

better and type safe ->

int nonrecursivecountcells(color (&grid)[ROW_SIZE][COL_SIZE], int, int);

About scope:

A variable created on the stack comes out of scope when the block it is declared in is terminated. A block is anything within an opening and matching closing brace. For example an if() { }, function() { }, while() {}, ...

Note I said variable and not data. For example you can allocate memory on the heap and that data will still remain valid even outside of the scope. But the variable that originally pointed to it would still come out of scope.

Suppose .. if we have more than 20 process running on the server with the same name ... this will not help

top -p pgrep oracle | head -n 20 | tr "\\n" "," | sed 's/,$//'

It will try to list and provide real time output of 20 process where we have good chance of missing other prcesses which consumes more resource ....

I am still looking for better option on this

A related note

To grep for carriage return, namely the \r character, or 0x0d, we can do this:

grep -F $'\r' application.log

Alternatively, use printf, or echo, for POSIX compatibility

grep -F "$(printf '\r')" application.log

And we can use hexdump, or less to see the result:

$ printf "a\rb" | grep -F $'\r' | hexdump -c
0000000   a  \r   b  \n

Regarding the use of $'\r' and other supported characters, see Bash Manual > ANSI-C Quoting:

Words of the form $'string' are treated specially. The word expands to string, with backslash-escaped characters replaced as specified by the ANSI C standard

If you need to target multiple classes use:

#main_text .title, #main_text .title2 {
  /* Properties */
}

The best way is to use simple math

>>> a = 8
>>> a**(1./3.)
2.0

EDIT

For Negative numbers

>>> a = -8
>>> -(-a)**(1./3.)
-2.0

Complete Program for all the requirements as specified

x = int(input("Enter an integer: "))
if x>0:
    ans = x**(1./3.)
    if ans ** 3 != abs(x):
        print x, 'is not a perfect cube!'
else:
    ans = -((-x)**(1./3.))
    if ans ** 3 != -abs(x):
        print x, 'is not a perfect cube!'

print 'Cube root of ' + str(x) + ' is ' + str(ans)

I want to just refresh the div, without refreshing the page ... Is this possible?

Yes, though it isn't going to be obvious that it does anything unless you change the contents of the div.

If you just want the graphical fade-in effect, simply remove the .html(data) call:

$("#panel").hide().fadeIn('fast');

Here is a demo you can mess around with: http://jsfiddle.net/ZPYUS/

It changes the contents of the div without making an ajax call to the server, and without refreshing the page. The content is hard coded, though. You can't do anything about that fact without contacting the server somehow: ajax, some sort of sub-page request, or some sort of page refresh.

html:

<div id="panel">test data</div>
<input id="changePanel" value="Change Panel" type="button">?

javascript:

$("#changePanel").click(function() {
    var data = "foobar";
    $("#panel").hide().html(data).fadeIn('fast');
});?

css:

div {
    padding: 1em;
    background-color: #00c000;
}

input {
    padding: .25em 1em;
}?

I wanted to share one more important finding.

use of <%= variable => would result in cross-site scripting vulnerability. So its more safe to use <%- variable -> instead.

We had to replace <%= with <%- to prevent cross-site scripting attacks. Not sure, whether this will it have any impact on the performance

I think you are wrapping your exception in another exception (which isn't in your code above). If you try out this code:

public static void main(String[] args) {
    try {
        throw new RuntimeException("Cannot move file");
    } catch (Exception ex) {
        JOptionPane.showMessageDialog(null, "Error: " + ex.getMessage());
    }
}

...you will see a popup that says exactly what you want.

However, to solve your problem (the wrapped exception) you need get to the "root" exception with the "correct" message. To do this you need to create a own recursive method getRootCause:

public static void main(String[] args) {
    try {
        throw new Exception(new RuntimeException("Cannot move file"));
    } catch (Exception ex) {
        JOptionPane.showMessageDialog(null,
                                      "Error: " + getRootCause(ex).getMessage());
    }
}

public static Throwable getRootCause(Throwable throwable) {
    if (throwable.getCause() != null)
        return getRootCause(throwable.getCause());

    return throwable;
}

Note: Unwrapping exceptions like this however, sort of breaks the abstractions. I encourage you to find out why the exception is wrapped and ask yourself if it makes sense.

This means that the application is unable to load the EDMX. There are several things which can cause this.

• You might have changed the MetadataArtifactProcessing property of the model to Copy to Output Directory.
• The connection string could be wrong. I know you say you haven't changed it, but if you have changed other things (say, the name of an assembly), it could still be wrong.
• You might be using a post-compile task to embed the EDMX in the assembly, which is no longer working for some reason.

In short, there is not really enough detail in your question to give an accurate answer, but hopefully these ideas should get you on the right track.

Update: I've written a blog post with more complete steps for troubleshooting.

I am not sure what the last line means. Does it mean, I read the file, create multiple Movie objects. Then make a vector of pointers where each element (pointer) points to one of those Movie objects?

I would guess this is what is intended. The intent is probably that you read the data for one movie, allocate an object with new, fill the object in with the data, and then push the address of the data onto the vector (probably not the best design, but most likely what's intended anyway).

Here is my full implementation of modal bootstrap angular2 component:

I assume that in your main index.html file (with <html> and <body> tags) at the bottom of <body> tag you have:

  <script src="assets/js/jquery-2.1.1.js"></script>
  <script src="assets/js/bootstrap.min.js"></script>

modal.component.ts:

import { Component, Input, Output, ElementRef, EventEmitter, AfterViewInit } from '@angular/core';

declare var $: any;// this is very importnant (to work this line: this.modalEl.modal('show')) - don't do this (becouse this owerride jQuery which was changed by bootstrap, included in main html-body template): let $ = require('../../../../../node_modules/jquery/dist/jquery.min.js');

@Component({
  selector: 'modal',
  templateUrl: './modal.html',
})
export class Modal implements AfterViewInit {

    @Input() title:string;
    @Input() showClose:boolean = true;
    @Output() onClose: EventEmitter<any> = new EventEmitter();

    modalEl = null;
    id: string = uniqueId('modal_');

    constructor(private _rootNode: ElementRef) {}

    open() {
        this.modalEl.modal('show');
    }

    close() {
        this.modalEl.modal('hide');
    }

    closeInternal() { // close modal when click on times button in up-right corner
        this.onClose.next(null); // emit event
        this.close();
    }

    ngAfterViewInit() {
        this.modalEl = $(this._rootNode.nativeElement).find('div.modal');
    }

    has(selector) {
        return $(this._rootNode.nativeElement).find(selector).length;
    }
}

let modal_id: number = 0;
export function uniqueId(prefix: string): string {
    return prefix + ++modal_id;
}

modal.html:

<div class="modal inmodal fade" id="{{modal_id}}" tabindex="-1" role="dialog"  aria-hidden="true" #thisModal>
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header" [ngClass]="{'hide': !(has('mhead') || title) }">
                <button *ngIf="showClose" type="button" class="close" (click)="closeInternal()"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
                <ng-content select="mhead"></ng-content>
                <h4 *ngIf='title' class="modal-title">{{ title }}</h4>
            </div>
            <div class="modal-body">
                <ng-content></ng-content>
            </div>

            <div class="modal-footer" [ngClass]="{'hide': !has('mfoot') }" >
                <ng-content select="mfoot"></ng-content>
            </div>
        </div>
    </div>
</div>

And example of usage in client Editor component: client-edit-component.ts:

import { Component } from '@angular/core';
import { ClientService } from './client.service';
import { Modal } from '../common';

@Component({
  selector: 'client-edit',
  directives: [ Modal ],
  templateUrl: './client-edit.html',
  providers: [ ClientService ]
})
export class ClientEdit {

    _modal = null;

    constructor(private _ClientService: ClientService) {}

    bindModal(modal) {this._modal=modal;}

    open(client) {
        this._modal.open();
        console.log({client});
    }

    close() {
        this._modal.close();
    }

}

client-edit.html:

<modal [title]='"Some standard title"' [showClose]='true' (onClose)="close()" #editModal>{{ bindModal(editModal) }}
    <mhead>Som non-standart title</mhead>
    Some contents
    <mfoot><button calss='btn' (click)="close()">Close</button></mfoot>
</modal>

Ofcourse title, showClose, mhead and mfoot ar optional parameters.

.grandparent{
   display: table;
}

.parent{
  display: table-cell
  vertical-align: middle
}

This worked for me.

I'm the author of PDFlib which is a GhostScript wrapper for php, advantage of using this library is, it is already tested and it does not require ImageMagic

Always GhostScript commands are faster than ImageMagic when it comes to pdf so you should either go for a GhostScript wrapper or pure GhostScript commands

$pdflib = new ImalH\PDFLib\PDFLib();
$pdflib->setPdfPath($pdf_file_path);
$pdflib->setOutputPath($folder_path_for_images);
$pdflib->convert();

A Date doesn't have any time zone. What you're seeing is only the formatting of the date by the Date.toString() method, which uses your local timezone, always, to transform the timezone-agnostic date into a String that you can understand.

If you want to display the timezone-agnostic date as a string using the UTC timezone, then use a SimpleDateFormat with the UTC timezone (as you're already doing in your question).

In other terms, the timezone is not a property of the date. It's a property of the format used to transform the date into a string.

nchar requires more space than nvarchar.

eg,

A nchar(100) will always store 100 characters even if you only enter 5, the remaining 95 chars will be padded with spaces. Storing 5 characters in a nvarchar(100) will save 5 characters.

This is actually trickier than it looks, because you can't call strlen unless the string is actually nul terminated. In fact, without some additional constraints, the problem practically requires inventing a new function, a version of strlen which never goes beyond the a certain length. However:

If the buffer containing the c-style string is guaranteed to be at least max_length char's (although perhaps with a '\0' before the end), then you can use the address-length constructor of std::string, and trim afterwards:

std::string result( c_string, max_length );
result.erase( std::find( result.begin(), result.end(), '\0' ), result.end() );

and if you know that c_string is a nul terminated string (but perhaps longer than max_length, you can use strlen:

std::string result( c_string, std::min( strlen( c_string ), max_length ) );

As I had the same question, but didn't find the answer here, I made some tests in order to figure out what the difference actually is. I did this, since I need the encoding for something, which is not URL/URI related.

• encodeURIComponent("A") returns "A", it does not encode "A" to "%41"
• decodeURIComponent("%41") returns "A".
• encodeURI("A") returns "A", it does not encode "A" to "%41"
• decodeURI("%41") returns "A".

-That means both can decode alphanumeric characters, even though they did not encode them. However...

• encodeURIComponent("&") returns "%26".
• decodeURIComponent("%26") returns "&".
• encodeURI("&") returns "&".
• decodeURI("%26") returns "%26".

Even though encodeURIComponent does not encode all characters, decodeURIComponent can decode any value between %00 and %7F.

Note: It appears that if you try to decode a value above %7F (unless it's a unicode value), then your script will fail with an "URI error".

If you are using pipenv then you need to specify the path to your virtual environment.in settings.json file. For example :

{
    "python.pythonPath": 
           "/Users/username/.local/share/virtualenvs/Your-Virual-Env/bin/python"
}

This can help.

Using sort -u does less I/O than sort | uniq, but the end result is the same. In particular, if the file is big enough that sort has to create intermediate files, there's a decent chance that sort -u will use slightly fewer or slightly smaller intermediate files as it could eliminate duplicates as it is sorting each set. If the data is highly duplicative, this could be beneficial; if there are few duplicates in fact, it won't make much difference (definitely a second order performance effect, compared to the first order effect of the pipe).

Note that there times when the piping is appropriate. For example:

sort FILE | uniq -c | sort -n

This sorts the file into order of the number of occurrences of each line in the file, with the most repeated lines appearing last. (It wouldn't surprise me to find that this combination, which is idiomatic for Unix or POSIX, can be squished into one complex 'sort' command with GNU sort.)

There are times when not using the pipe is important. For example:

sort -u -o FILE FILE

This sorts the file 'in situ'; that is, the output file is specified by -o FILE, and this operation is guaranteed safe (the file is read before being overwritten for output).

From the Python PEP 8 -- Style Guide for Python Code:

Descriptive: Naming Styles

The following special forms using leading or trailing underscores are recognized (these can generally be combined with any case convention):

• _single_leading_underscore: weak "internal use" indicator. E.g. from M import * does not import objects whose name starts with an underscore.

• single_trailing_underscore_: used by convention to avoid conflicts with Python keyword, e.g.

  Tkinter.Toplevel(master, class_='ClassName')

• __double_leading_underscore: when naming a class attribute, invokes name mangling (inside class FooBar, __boo becomes _FooBar__boo; see below).

• __double_leading_and_trailing_underscore__: "magic" objects or attributes that live in user-controlled namespaces. E.g. __init__, __import__ or __file__. Never invent such names; only use them as documented.

Note that names with double leading and trailing underscores are essentially reserved for Python itself: "Never invent such names; only use them as documented".

You should write a kind of template into the @RequestMapping:

http://localhost:8080/userGrid?_search=${search}&nd=${nd}&rows=${rows}&page=${page}&sidx=${sidx}&sord=${sord}

Now define your business method like following:

@RequestMapping("/userGrid?_search=${search}&nd=${nd}&rows=${rows}&page=${page}&sidx=${sidx}&sord=${sord}")
public @ResponseBody GridModel getUsersForGrid(
@RequestParam(value = "search") String search, 
@RequestParam(value = "nd") int nd, 
@RequestParam(value = "rows") int rows, 
@RequestParam(value = "page") int page, 
@RequestParam(value = "sidx") int sidx, 
@RequestParam(value = "sort") Sort sort) {
...............
}

So, framework will map ${foo} to appropriate @RequestParam.

Since sort may be either asc or desc I'd define it as a enum:

public enum Sort {
    asc, desc
}

Spring deals with enums very well.

diplay:flex; is another alternative answer that you can add to all above answers which is supported in all modern browsers.

#block_container {_x000D_
  display: flex;_x000D_
  justify-content: center;_x000D_
}

<div id="block_container">_x000D_
  <div id="bloc1">Copyright &copy; All Rights Reserved.</div>_x000D_
  <div id="bloc2"><img src="..."></div>_x000D_
</div>

Using JODA:

PeriodFormatter periodFormat = new PeriodFormatterBuilder()
  .minimumParsedDigits(2)
  .appendHour() // 2 digits minimum
  .appendSeparator(":")
  .minimumParsedDigits(2)
  .appendMinute() // 2 digits minimum
  .appendSeparator(":")
  .minimumParsedDigits(2)
  .appendSecond()
  .appendSeparator(".")
  .appendMillis3Digit()
  .toFormatter();
Period result = Period.parse(string, periodFormat);
return result.toStandardDuration().getMillis();

The problem with information_schema is that it can be terribly slow. It is faster to use the SHOW commands.

After you select the database you first send the query SHOW TABLES. And then you do SHOW COLUMNS for each of the tables.

In PHP that would look something like

    $res = mysqli_query("SHOW TABLES");
    while($row = mysqli_fetch_array($res))
    {   $rs2 = mysqli_query("SHOW COLUMNS FROM ".$row[0]);
        while($rw2 = mysqli_fetch_array($rs2))
        {   if($rw2[0] == $target)
               ....
        }
    }

checkout can be use for many case :

1st case : switch between branch in local repository For instance : git checkout exists_branch_to_switch

You can also create new branch and switch out in throught this case with -b

git checkout -b new_branch_to_switch

2nd case : restore file from x rev

git checkout rev file_to_restore ...

From: http://wiki.apache.org/httpd/FAQ#Where_can_I_download_.28certified.29_64_bit_Apache_httpd_binaries_for_Windows.3F

Where can I download (certified) 64 bit Apache httpd binaries for Windows?

Right now, there are none. The Apache Software Foundation produces Open Source Software. The 32 bit binaries provided are a courtesy of the community members.

Though there are some unofficial e.g. http://www.apachelounge.com/download/win64/, but I have no idea if they can be trusted.

Postman 4.0.5 has a feature named Manage Cookies located below the Send button which manages the cookies separately from Chrome it seems.

For PHP7, use

sudo apt-get install php7.0-sqlite3

and restart Apache

sudo apache2ctl restart

Android Studio 3.0 and earlier:

If the other solutions don't work, you can always see the output in the Android Monitor.

Make sure to set your filter to Show only selected application or create a custom filter.

add cv2.waitKey(0) in the end.

If getting this error trying to build .Net Core 2.0 app on VSTS then ensure your build definition is using the Hosted VS2017 Agent queue.

To run the batch file when the VM user logs in:

Drag the shortcut--the one that's currently on your desktop--(or the batch file itself) to Start - All Programs - Startup. Now when you login as that user, it will launch the batch file.

Another way to do the same thing is to save the shortcut or the batch file in %AppData%\Microsoft\Windows\Start Menu\Programs\Startup\.

As far as getting it to run full screen, it depends a bit what you mean. You can have it launch maximized by editing your batch file like this:

start "" /max "C:\Program Files\Oracle\VirtualBox\VirtualBox.exe" --comment "VM" --startvm "12dada4d-9cfd-4aa7-8353-20b4e455b3fa"

But if VirtualBox has a truly full-screen mode (where it hides even the taskbar), you'll have to look for a command-line parameter on VirtualBox.exe. I'm not familiar with that product.

try this in your post methods callback function

$(':input','#myform')
 .not(':button, :submit, :reset, :hidden')
 .val('')
 .removeAttr('checked')
 .removeAttr('selected');

for more info read this

Easiest way to check if a row exists:

$lectureName = mysql_real_escape_string($lectureName);  // SECURITY!
$result = mysql_query("SELECT 1 FROM preditors_assigned WHERE lecture_name='$lectureName' LIMIT 1");
if (mysql_fetch_row($result)) {
    return 'Assigned';
} else {
    return 'Available';
}

No need to mess with arrays and field names.

You can use fork() and system() so that your program doesn't have to wait until system() returns.

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

int main(int argc,char* argv[]){

    int status;

    // By calling fork(), a child process will be created as a exact duplicate of the calling process.
    // Search for fork() (maybe "man fork" on Linux) for more information.
    if(fork() == 0){ 
        // Child process will return 0 from fork()
        printf("I'm the child process.\n");
        status = system("my_app");
        exit(0);
    }else{
        // Parent process will return a non-zero value from fork()
        printf("I'm the parent.\n");
    }

    printf("This is my main program and it will continue running and doing anything i want to...\n");

    return 0;
}

Sure you can; it's called a dictionary:

d = {}
for x in range(1, 10):
    d["string{0}".format(x)] = "Hello"

>>> d["string5"]
'Hello'
>>> d
{'string1': 'Hello',
 'string2': 'Hello',
 'string3': 'Hello',
 'string4': 'Hello',
 'string5': 'Hello',
 'string6': 'Hello',
 'string7': 'Hello',
 'string8': 'Hello',
 'string9': 'Hello'}

I said this somewhat tongue in check, but really the best way to associate one value with another value is a dictionary. That is what it was designed for!

Flushing the output buffers:

printf("Buffered, will be flushed");
fflush(stdout); // Prints to screen or whatever your standard out is

or

fprintf(fd, "Buffered, will be flushed");
fflush(fd);  //Prints to a file

Can be a very helpful technique. Why would you want to flush an output buffer? Usually when I do it, it's because the code is crashing and I'm trying to debug something. The standard buffer will not print everytime you call printf() it waits until it's full then dumps a bunch at once. So if you're trying to check if you're making it to a function call before a crash, it's helpful to printf something like "got here!", and sometimes the buffer hasn't been flushed before the crash happens and you can't tell how far you've really gotten.

Another time that it's helpful, is in multi-process or multi-thread code. Again, the buffer doesn't always flush on a call to a printf(), so if you want to know the true order of execution of multiple processes you should fflush the buffer after every print.

I make a habit to do it, it saves me a lot of headache in debugging. The only downside I can think of to doing so is that printf() is an expensive operation (which is why it doesn't by default flush the buffer).

As far as flushing the input buffer (stdin), you should not do that. Flushing stdin is undefined behavior according to the C11 standard §7.21.5.2 part 2:

If stream points to an output stream ... the fflush function causes any unwritten data for that stream ... to be written to the file; otherwise, the behavior is undefined.

On some systems, Linux being one as you can see in the man page for fflush(), there's a defined behavior but it's system dependent so your code will not be portable.

Now if you're worried about garbage "stuck" in the input buffer you can use fpurge() on that. See here for more on fflush() and fpurge()

csvde -f test.csv

This command will perform a CSV dump of every entry in your Active Directory server. You should be able to see the full DN's of users and groups.

You will have to go through that output file and get rid off the unnecessary content.

you can use finishAffinity(); to close all the activity..

You can create a pre-filled form URL from within the Form Editor, as described in the documentation for Drive Forms. You'll end up with a URL like this, for example:

https://docs.google.com/forms/d/--form-id--/viewform?entry.726721210=Mike+Jones&entry.787184751=1975-05-09&entry.1381372492&entry.960923899

buildUrls()

In this example, question 1, "Name", has an ID of 726721210, while question 2, "Birthday" is 787184751. Questions 3 and 4 are blank.

You could generate the pre-filled URL by adapting the one provided through the UI to be a template, like this:

function buildUrls() {
  var template = "https://docs.google.com/forms/d/--form-id--/viewform?entry.726721210=##Name##&entry.787184751=##Birthday##&entry.1381372492&entry.960923899";
  var ss = SpreadsheetApp.getActive().getSheetByName("Sheet1");  // Email, Name, Birthday
  var data = ss.getDataRange().getValues();

  // Skip headers, then build URLs for each row in Sheet1.
  for (var i = 1; i < data.length; i++ ) {
    var url = template.replace('##Name##',escape(data[i][1]))
                      .replace('##Birthday##',data[i][2].yyyymmdd());  // see yyyymmdd below
    Logger.log(url);  // You could do something more useful here.
  }
};

This is effective enough - you could email the pre-filled URL to each person, and they'd have some questions already filled in.

betterBuildUrls()

Instead of creating our template using brute force, we can piece it together programmatically. This will have the advantage that we can re-use the code without needing to remember to change the template.

Each question in a form is an item. For this example, let's assume the form has only 4 questions, as you've described them. Item [0] is "Name", [1] is "Birthday", and so on.

We can create a form response, which we won't submit - instead, we'll partially complete the form, only to get the pre-filled form URL. Since the Forms API understands the data types of each item, we can avoid manipulating the string format of dates and other types, which simplifies our code somewhat.

(EDIT: There's a more general version of this in How to prefill Google form checkboxes?)

/**
 * Use Form API to generate pre-filled form URLs
 */
function betterBuildUrls() {
  var ss = SpreadsheetApp.getActive();
  var sheet = ss.getSheetByName("Sheet1");
  var data = ss.getDataRange().getValues();  // Data for pre-fill

  var formUrl = ss.getFormUrl();             // Use form attached to sheet
  var form = FormApp.openByUrl(formUrl);
  var items = form.getItems();

  // Skip headers, then build URLs for each row in Sheet1.
  for (var i = 1; i < data.length; i++ ) {
    // Create a form response object, and prefill it
    var formResponse = form.createResponse();

    // Prefill Name
    var formItem = items[0].asTextItem();
    var response = formItem.createResponse(data[i][1]);
    formResponse.withItemResponse(response);

    // Prefill Birthday
    formItem = items[1].asDateItem();
    response = formItem.createResponse(data[i][2]);
    formResponse.withItemResponse(response);

    // Get prefilled form URL
    var url = formResponse.toPrefilledUrl();
    Logger.log(url);  // You could do something more useful here.
  }
};

yymmdd Function

Any date item in the pre-filled form URL is expected to be in this format: yyyy-mm-dd. This helper function extends the Date object with a new method to handle the conversion.

When reading dates from a spreadsheet, you'll end up with a javascript Date object, as long as the format of the data is recognizable as a date. (Your example is not recognizable, so instead of May 9th 1975 you could use 5/9/1975.)

// From http://blog.justin.kelly.org.au/simple-javascript-function-to-format-the-date-as-yyyy-mm-dd/
Date.prototype.yyyymmdd = function() {
  var yyyy = this.getFullYear().toString();                                    
  var mm = (this.getMonth()+1).toString(); // getMonth() is zero-based         
  var dd  = this.getDate().toString();             

  return yyyy + '-' + (mm[1]?mm:"0"+mm[0]) + '-' + (dd[1]?dd:"0"+dd[0]);
};

For folks who find this posting through the search engines, another possible cause of this problem is from importing the wrong package version of @Transient. Make sure that you import javax.persistence.transient and not some other package.

Javascript document.getElementById("<%=contrilid.ClientID%>").value; or using jquery

$("#<%= txt_iplength.ClientID %>").val();

For my enums I don't really like to think of them being allocated with 1 String each. This is how I implement a toString() method on enums.

enum Animal
{
    DOG, CAT, BIRD;
    public String toString(){
        switch (this) {
            case DOG: return "Dog";
            case CAT: return "Cat";
            case BIRD: return "Bird";
        }
        return null;
    }
}

Another option

tuple([tuple(row) for row in myarray])

If you are passing NumPy arrays to C++ functions, you may also wish to look at using Cython or SWIG.

You'll need to submit an ajax request to send the email without reloading the page. Take a look at http://api.jquery.com/jQuery.ajax/

Your code should be something along the lines of:

$('#submit').click(function() {
    $.ajax({
        url: 'send_email.php',
        type: 'POST',
        data: {
            email: '[email protected]',
            message: 'hello world!'
        },
        success: function(msg) {
            alert('Email Sent');
        }               
    });
});

The form will submit in the background to the send_email.php page which will need to handle the request and send the email.

In the old days, "/opt" was used by UNIX vendors like AT&T, Sun, DEC and 3rd-party vendors to hold "Option" packages; i.e. packages that you might have paid extra money for. I don't recall seeing "/opt" on Berkeley BSD UNIX. They used "/usr/local" for stuff that you installed yourself.

But of course, the true "meaning" of the different directories has always been somewhat vague. That is arguably a good thing, because if these directories had precise (and rigidly enforced) meanings you'd end up with a proliferation of different directory names.

According to the Filesystem Hierarchy Standard, /opt is for "the installation of add-on application software packages". /usr/local is "for use by the system administrator when installing software locally".

which may be useful

Update
    A INNER JOIN B ON A.COL1=B.COL3
SET
    A.COL2='CHANGED', A.COL4=B.COL4,......
WHERE ....;

type Services at search, then start Services

then start all VM services

Detached head means you are no longer on a branch, you have checked out a single commit in the history (in this case the commit previous to HEAD, i.e. HEAD^).

If you want to delete your changes associated with the detached HEAD

You only need to checkout the branch you were on, e.g.

git checkout master

Next time you have changed a file and want to restore it to the state it is in the index, don't delete the file first, just do

git checkout -- path/to/foo

This will restore the file foo to the state it is in the index.

If you want to keep your changes associated with the detached HEAD

1. Run git branch tmp - this will save your changes in a new branch called tmp.
2. Run git checkout master
3. If you would like to incorporate the changes you made into master, run git merge tmp from the master branch. You should be on the master branch after running git checkout master.

 File folderGIF = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES) + "/newgif2");    //path where gif will be stored
success = folderGIF.mkdir();    //make directory
 String finalPath = folderGIF + "/test1.gif";  //path of file
.....
/* changes in gallery app if any changes in done*/
 MediaScannerConnection.scanFile(this,
                    new String[]{finalPath}, null,
                    new MediaScannerConnection.OnScanCompletedListener() {
                        public void onScanCompleted(String path, Uri uri) {
                            Log.i("ExternalStorage", "Scanned " + path + ":");
                            Log.i("ExternalStorage", "-> uri=" + uri);
                        }
                    });

You've got one truly marvelous answer from ray023, but your comment that it's probably overkill is apt. For a "lighter" version....

Block 1 is, IMHO, bad practice. As already pointed out by osknows, mixing error-handling with normal-path code is Not Good. For one thing, if a new error is thrown while there's an Error condition in effect you will not get an opportunity to handle it (unless you're calling from a routine that also has an error handler, where the execution will "bubble up").

Block 2 looks like an imitation of a Try/Catch block. It should be okay, but it's not The VBA Way. Block 3 is a variation on Block 2.

Block 4 is a bare-bones version of The VBA Way. I would strongly advise using it, or something like it, because it's what any other VBA programmer inherting the code will expect. Let me present a small expansion, though:

Private Sub DoSomething()
On Error GoTo ErrHandler

'Dim as required

'functional code that might throw errors

ExitSub:
    'any always-execute (cleanup?) code goes here -- analagous to a Finally block.
    'don't forget to do this -- you don't want to fall into error handling when there's no error
    Exit Sub

ErrHandler:
    'can Select Case on Err.Number if there are any you want to handle specially

    'display to user
    MsgBox "Something's wrong: " & vbCrLf & Err.Description

    'or use a central DisplayErr routine, written Public in a Module
    DisplayErr Err.Number, Err.Description

    Resume ExitSub
    Resume
End Sub

Note that second Resume. This is a trick I learned recently: It will never execute in normal processing, since the Resume <label> statement will send the execution elsewhere. It can be a godsend for debugging, though. When you get an error notification, choose Debug (or press Ctl-Break, then choose Debug when you get the "Execution was interrupted" message). The next (highlighted) statement will be either the MsgBox or the following statement. Use "Set Next Statement" (Ctl-F9) to highlight the bare Resume, then press F8. This will show you exactly where the error was thrown.

As to your objection to this format "jumping around", A) it's what VBA programmers expect, as stated previously, & B) your routines should be short enough that it's not far to jump.

Annotate the field students as below since there is mismatch in names of json property and java property

public Class Wrapper {
    @JsonProperty("wrapper")
    private List<Student> students;
    //getters & setters here
}

This is a nice tutorial:

http://android-developers.blogspot.de/2009/05/painless-threading.html

Or this for the UI thread:

http://developer.android.com/guide/faq/commontasks.html#threading

Or here a very practical one:

http://www.androidacademy.com/1-tutorials/43-hands-on/115-threading-with-android-part1

and another one about procceses and threads

http://developer.android.com/guide/components/processes-and-threads.html

BitmapFactory.Options options=new BitmapFactory.Options();
options.inSampleSize=2; //try to decrease decoded image 
Bitmap bitmap=BitmapFactory.decodeStream(is, null, options); 
bitmap.compress(Bitmap.CompressFormat.JPEG, 70, fos); //compressed bitmap to file 

If you can't find an existing solution it's pretty easy to build a basic one in Java. I just wrote one for a client and it took only a couple hours including researching tools.

Apache POI will read the Excel binary. http://poi.apache.org/

JSONObject will build the JSON

After that it's just a matter of iterating through the rows in the Excel data and building a JSON structure. Here's some pseudo code for the basic usage.

FileInputStream inp = new FileInputStream( file );
Workbook workbook = WorkbookFactory.create( inp );

// Get the first Sheet.
Sheet sheet = workbook.getSheetAt( 0 );

    // Start constructing JSON.
    JSONObject json = new JSONObject();

    // Iterate through the rows.
    JSONArray rows = new JSONArray();
    for ( Iterator<Row> rowsIT = sheet.rowIterator(); rowsIT.hasNext(); )
    {
        Row row = rowsIT.next();
        JSONObject jRow = new JSONObject();

        // Iterate through the cells.
        JSONArray cells = new JSONArray();
        for ( Iterator<Cell> cellsIT = row.cellIterator(); cellsIT.hasNext(); )
        {
            Cell cell = cellsIT.next();
            cells.put( cell.getStringCellValue() );
        }
        jRow.put( "cell", cells );
        rows.put( jRow );
    }

    // Create the JSON.
    json.put( "rows", rows );

// Get the JSON text.
return json.toString();

Acording to the docs:

Note The urllib2 module has been split across several modules in Python 3 named urllib.request and urllib.error. The 2to3 tool will automatically adapt imports when converting your sources to Python 3.

So it appears that it is impossible to do what you want but you can use appropriate python3 functions from urllib.request.

+1 the recommendation for Joda-time. If you plan on doing anything more than a simple Hello World example, I suggest reading this:

Daylight saving time and time zone best practices

public function search()
{
    if (isset($_GET) && !empty($_GET))
    {
        $prepareQuery = '';
        foreach ($_GET as $key => $data)
        {
            if ($data)
            {
                $prepareQuery.=$key . ' = "' . $data . '" OR ';
            }
        }
        $query = substr($prepareQuery, 0, -3);
        if ($query)
            $model = Businesses::whereRaw($query)->get();
        else
            $model = Businesses::get();

        return view('pages.search', compact('model', 'model'));
    }
}

I was wondering why I was getting that big warning message on Ubuntu 16.04 (which comes with Git 2.7.4), but not on Arch Linux. The reason is that the warning was removed in Git 2.8 (March 2016):

Across the transition at around Git version 2.0, the user used to get a pretty loud warning when running "git push" without setting push.default configuration variable. We no longer warn because the transition was completed a long time ago.

So you won't see the warning if you have Git 2.8 and later and don't need to set push.default unless you want to change the default 'simple' behavior.

in python:

env = Environment(loader=FileSystemLoader("templates"))
env.globals["enumerate"] = enumerate

in template:

{% for k,v in enumerate(list) %}
{% endfor %}

The original answer is actually correct, but lacks explanation. I would like to add some explanations and modifications.

I suggest reading this short introduction https://httpd.apache.org/docs/2.4/rewrite/intro.html (15mins) and reference these 2 pages while reading.

https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html https://httpd.apache.org/docs/2.4/rewrite/flags.html

This is the basic rule to hide index.php from the URL. Put this in your root .htaccess file.

mod_rewrite must be enabled with PHP and this will work for the PHP version higher than 5.2.6.

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule (.*) /index.php/$1 [L]

Think %{REQUEST_FILENAME} as the the path after host.

E.g. https://www.example.com/index.html, %{REQUEST_FILENAME} is /index.html

So the last 3 lines means, if it's not a regular file !-f and not a directory !-d, then do the RewriteRule.

As for RewriteRule formats:

So RewriteRule (.*) /index.php/$1 [L] means, if the 2 RewriteCond are satisfied, it (.*) would match everything after the hostname. . matches any single character , .* matches any characters and (.*) makes this a variables can be references with $1, then replace with /index.php/$1. The final effect is to add a preceding index.php to the whole URL path.

E.g. for https://www.example.com/hello, it would produce, https://www.example.com/index.php/hello internally.

Another key problem is that this indeed solve the question. Internally, (I guess) it always need https://www.example.com/index.php/hello, but with rewriting, you could visit the site without index.php, apache adds that for you internally.

Btw, making an extra .htaccess file is not very recommended by the Apache doc.

Rewriting is typically configured in the main server configuration setting (outside any <Directory> section) or inside <VirtualHost> containers. This is the easiest way to do rewriting and is recommended

This error is a result of the protection level of ClassB's constructor, not ClassB itself. Since the name of the constructor is the same as the name of the class^* , the error may be interpreted incorrectly. Since you did not specify the protection level of your constructor, it is assumed to be internal by default. Declaring the constructor public will fix this problem:

public ClassB() { } 

^* One could also say that constructors have no name, only a type; this does not change the essence of the problem.

You can give variable names as project files. For instance in you plugin configuration give only one tag as below:-

<projectFile>${projectName}</projectFile>

Then on command line you can pass the project name as parameter:-

mvn [your-command] -DprojectName=[name of project]

Actually you have a code compiled targeting a higher JDK (JDK 1.8 in your case) but at runtime you are supplying a lower JRE(JRE 7 or below).

you can fix this problem by adding target parameter while compilation
e.g. if your runtime target is 1.7, you should use 1.7 or below

javac -target 1.7 *.java

if you are using eclipse, you can sent this parameter at Window -> Preferences -> Java -> Compiler -> set "Compiler compliance level" = choose your runtime jre version or lower.

Put it in double quotes:

echo "\t";

Single quotes do not expand escaped characters.

Use the documentation when in doubt.

Use:

import color

class Color(color.Color):
    ...

If this were Python 2.x, you would also want to derive color.Color from object, to make it a new-style class:

class Color(object):
    ...

This is not necessary in Python 3.x.

Since awk and perl are closely related...

Perl equivalents of @Dennis's awk solutions:

To print the second line:
perl -ne 'print if $. == 2' file

To print the second field:
perl -lane 'print $F[1]' file

To print the third field of the fifth line:
perl -lane 'print $F[2] if $. == 5' file

Perl equivalent of @Glenn's solution:

Print the j'th field of the i'th line

perl -lanse 'print $F[$j-1] if $. == $i' -- -i=5 -j=3 file

Perl equivalents of @Hai's solutions:

if you are looking for second columns that contains abc:

perl -lane 'print if $F[1] =~ /abc/' foo

... and if you want to print only a particular column:

perl -lane 'print $F[2] if $F[1] =~ /abc/' foo

... and for a particular line number:

perl -lane 'print $F[2] if $F[1] =~ /abc/ && $. == 5' foo

-l removes newlines, and adds them back in when printing
-a autosplits the input line into array @F, using whitespace as the delimiter
-n loop over each line of the input file
-e execute the code within quotes
$F[1] is the second element of the array, since Perl starts at 0
$. is the line number

Some more alternative options because regexes (regi ?) are awesome!

Here is a Simple regex to do the job:

 regex="[^/]*$"

Example (grep):

 FP="/hello/world/my/file/path/hello_my_filename.log"
 echo $FP | grep -oP "$regex"
 #Or using standard input
 grep -oP "$regex" <<< $FP

Example (awk):

 echo $FP | awk '{match($1, "$regex",a)}END{print a[0]}
 #Or using stardard input
 awk '{match($1, "$regex",a)}END{print a[0]} <<< $FP

If you need a more complicated regex: For example your path is wrapped in a string.

 StrFP="my string is awesome file: /hello/world/my/file/path/hello_my_filename.log sweet path bro."

 #this regex matches a string not containing / and ends with a period 
 #then at least one word character 
 #so its useful if you have an extension

 regex="[^/]*\.\w{1,}"

 #usage
 grep -oP "$regex" <<< $StrFP

 #alternatively you can get a little more complicated and use lookarounds
 #this regex matches a part of a string that starts with /  that does not contain a / 
 ##then uses the lazy operator ? to match any character at any amount (as little as possible hence the lazy)
 ##that is followed by a space
 ##this allows use to match just a file name in a string with a file path if it has an exntension or not
 ##also if the path doesnt have file it will match the last directory in the file path 
 ##however this will break if the file path has a space in it.

 regex="(?<=/)[^/]*?(?=\s)"

 #to fix the above problem you can use sed to remove spaces from the file path only
 ## as a side note unfortunately sed has limited regex capibility and it must be written out in long hand.
 NewStrFP=$(echo $StrFP | sed 's:\(/[a-z]*\)\( \)\([a-z]*/\):\1\3:g')
 grep -oP "$regex" <<< $NewStrFP

Total solution with Regexes:

This function can give you the filename with or without extension of a linux filepath even if the filename has multiple "."s in it. It can also handle spaces in the filepath and if the file path is embedded or wrapped in a string.

#you may notice that the sed replace has gotten really crazy looking
#I just added all of the allowed characters in a linux file path
function Get-FileName(){
    local FileString="$1"
    local NoExtension="$2"
    local FileString=$(echo $FileString | sed 's:\(/[a-zA-Z0-9\<\>\|\\\:\)\(\&\;\,\?\*]*\)\( \)\([a-zA-Z0-9\<\>\|\\\:\)\(\&\;\,\?\*]*/\):\1\3:g')

    local regex="(?<=/)[^/]*?(?=\s)"

    local FileName=$(echo $FileString | grep -oP "$regex")

    if [[ "$NoExtension" != "" ]]; then
        sed 's:\.[^\.]*$::g' <<< $FileName
    else
        echo "$FileName"
    fi
}

## call the function with extension
Get-FileName "my string is awesome file: /hel lo/world/my/file test/path/hello_my_filename.log sweet path bro."

##call function without extension
Get-FileName "my string is awesome file: /hel lo/world/my/file test/path/hello_my_filename.log sweet path bro." "1"

If you have to mess with a windows path you can start with this one:

 [^\\]*$       

I encounted this error and found that it was because the "strict" parameter was set to true in the tsconfig.json file. Just set it "false" (obviously). In my case I had generated the tsconfig file from the cmd prompt and simply missed the "strict" parameter, which was located further down in the file.

This is a well-known old question, but I'd like to share some more insights about modern programming language research and design.

Basic answer

Traditionally (in the sense of structured programming) and informally, a procedure is a reusable structural construct to have "input" and to do something programmable. When something is needed to be done within a procedure, you can provide (actual) arguments to the procedure in a procedure call coded in the source code (usually in a kind of an expression), and the actions coded in the procedures body (provided in the definition of the procedure) will be executed with the substitution of the arguments into the (formal) parameters used in the body.

A function is more than a procedure because return values can also be specified as the "output" in the body. Function calls are more or less same to procedure calls, except that you can also use the result of the function call, syntactically (usually as a subexpression of some other expression).

Traditionally, procedure calls (rather than function calls) are used to indicate that no output must be interested, and there must be side effects to avoid the call being no-ops, hence emphasizing the imperative programming paradigm. Many traditional programming languages like Pascal provide both "procedures" and "functions" to distinguish this intentional difference of styles.

(To be clear, the "input" and "output" mentioned above are simplified notions based on the syntactic properties of functions. Many languages additionally support passing arguments to parameters by reference/sharing, to allow users transporting information encoded in arguments during the calls. Such parameter may even be just called as "in/out parameter". This feature is based on the nature of the objects being passed in the calls, which is orthogonal to the properties of the feature of procedure/function.)

However, if the result of a function call is not needed, it can be just (at least logically) ignored, and function definitions/function calls should be consistent to procedure definitions/procedure calls in this way. ALGOL-like languages like C, C++ and Java, all provide the feature of "function" in this fashion: by encoding the result type void as a special case of functions looking like traditional procedures, there is no need to provide the feature of "procedures" separately. This prevents some bloat in the language design.

Since SICP is mentioned, it is also worth noting that in the Scheme language specified by RⁿRS, a procedure may or may not have to return the result of the computation. This is the union of the traditional "function" (returning the result) and "procedure" (returning nothing), essentially same to the "function" concept of many ALGOL-like languages (and actually sharing even more guarantees like applicative evaluations of the operands before the call). However, old-fashion differences still occur even in normative documents like SRFI-96.

I don't know much about the exact reasons behind the divergence, but as I have experienced, it seems that language designers will be happier without specification bloat nowadays. That is, "procedure" as a standalone feature is unnecessary. Techniques like void type is already sufficient to mark the use where side effects should be emphasized. This is also more natural to users having experiences on C-like languages, which are popular more than a few decades. Moreover, it avoids the embarrassment in cases like RⁿRS where "procedures" are actually "functions" in the broader sense.

In theory, a function can be specified with a specified unit type as the type of the function call result to indicate that result is special. This distinguishes the traditional procedures (where the result of a call is uninterested) from others. There are different styles in the design of a language:

• As in RⁿRS, just marking the uninterested results as "unspecified" value (of unspecified type, if the language has to mention it) and it is sufficient to be ignored.
• Specifying the uninterested result as the value of a dedicated unit type (e.g. Kernel's #inert) also works.
• When that type is a further a bottom type, it can be (hopefully) statically verified and prevented used as a type of expression. The void type in ALGOL-like languages is exactly an example of this technique. ISO C11's _Noreturn is a similar but more subtle one in this kind.

Further reading

As the traditional concept derived from math, there are tons of black magic most people do not bother to know. Strictly speaking, you won't be likely get the whole things clear as per your math books. CS books might not provide much help, either.

With concerning of programming languages, there are several caveats:

• Functions in different branches of math are not always defined having same meanings. Functions in different programming paradigms may also be quite different (even sometimes the syntaxes of function call look similar). Sometimes the reasons to cause the differences are same, but sometimes they are not.
  • It is idiomatic to model computation by mathematical functions and then implement the underlying computation in programming languages. Be careful to avoid mapping them one to one unless you know what are being talked about.
• Do not confuse the model with the entity be modeled.
  • The latter is only one of the implementation to the former. There can be more than one choices, depending on the contexts (the branches of math interested, for example).
  • In particular, it is more or less similarly absurd to treat "functions" as "mappings" or subsets of Cartesian products like to treat natural numbers as Von-Neumann encoding of ordinals (looking like a bunch of {{{}}, {}}...) besides some limited contexts.
• Mathematically, functions can be partial or total. Different programming languages have different treatment here.
  • Some functional languages may honor totality of functions to guarantee the computation within the function calls always terminate in finite steps. However, this is essentially not Turing-complete, hence weaker computational expressiveness, and not much seen in general-purpose languages besides semantics of typechecking (which is expected to be total).
  • If the difference between the procedures and functions is significant, should there be "total procedures"? Hmm...
• Constructs similar to functions in calculi used to model the general computation and the semantics of the programming languages (e.g. lambda abstractions in lambda calculi) can have different evaluation strategies on operands.
  • In traditional the reductions in pure calculi as well in as evaluations of expressions in pure functional languages, there are no side effects altering the results of the computations. As a result, operands are not required to be evaluated before the body of the functions-like constructs (because the invariant to define "same results" is kept by properties like ß-equivalence guaranteed by Church-Rosser property).
  • However, many programming languages may have side effects during the evaluations of expressions. That means, strict evaluation strategies like applicative evaluation are not the same to non-strict evaluation ones like call-by-need. This is significant, because without the distinction, there is no need to distinguish function-like (i.e. used with arguments) macros from (traditional) functions. But depending on the flavor of theories, this still can be an artifact. That said, in a broader sense, functional-like macros (esp. hygienic ones) are mathematical functions with some unnecessary limitations (syntactic phases). Without the limitations, it might be sane to treat (first-class) function-like macros as procedures...
  • For readers interested in this topic, consider some modern abstractions.
• Procedures are usually considered out of the scope of traditional math. However, in calculi modeling the computation and programming language semantics, as well as contemporary programming language designs, there can be quite a big family of related concepts sharing the "callable" nature. Some of them are used to implement/extend/replace procedures/functions. There are even more subtle distinctions.
  • Here are some related keywords: subroutines/(stackless/stackful) coroutines/(undelimited delimited) continuations... and even (unchecked) exceptions.

script is loading before body, keep script after content

Do you have variables that are associated with these print statements been output? if so, I have found that if the variable has no value then the print statement will not be ouput.

Try this

 <head>
 <style type ="text/css" >
   .footer{ 
       position: fixed;     
       text-align: center;    
       bottom: 0px; 
       width: 100%;
   }  
</style>
</head>
<body>
    <div class="footer">All Rights Reserved</div>
</body>

There are several decisions to make:

1. The first about resource path:

   • Model the image as a resource on its own:

     • Nested in user (/user/:id/image): the relationship between the user and the image is made implicitly

     • In the root path (/image):

       • The client is held responsible for establishing the relationship between the image and the user, or;

       • If a security context is being provided with the POST request used to create an image, the server can implicitly establish a relationship between the authenticated user and the image.

   • Embed the image as part of the user

2. The second decision is about how to represent the image resource:

   • As Base 64 encoded JSON payload
   • As a multipart payload

This would be my decision track:

• I usually favor design over performance unless there is a strong case for it. It makes the system more maintainable and can be more easily understood by integrators.
• So my first thought is to go for a Base64 representation of the image resource because it lets you keep everything JSON. If you chose this option you can model the resource path as you like.
  • If the relationship between user and image is 1 to 1 I'd favor to model the image as an attribute specially if both data sets are updated at the same time. In any other case you can freely choose to model the image either as an attribute, updating the it via PUT or PATCH, or as a separate resource.
• If you choose multipart payload I'd feel compelled to model the image as a resource on is own, so that other resources, in our case, the user resource, is not impacted by the decision of using a binary representation for the image.

Then comes the question: Is there any performance impact about choosing base64 vs multipart?. We could think that exchanging data in multipart format should be more efficient. But this article shows how little do both representations differ in terms of size.

My choice Base64:

• Consistent design decision
• Negligible performance impact
• As browsers understand data URIs (base64 encoded images), there is no need to transform these if the client is a browser
• I won't cast a vote on whether to have it as an attribute or standalone resource, it depends on your problem domain (which I don't know) and your personal preference.

You don't need to parse the string, it's defined as a string already.

Just do:

    private static String getStringInput (String prompt) {
     String input = EZJ.getUserInput(prompt);
     return input;
    }

to match both 48-bit EUI-48 and 64-bit EUI-64 MAC addresses:

/\A\h{2}([:\-]?\h{2}){5}\z|\A\h{2}([:\-]?\h{2}){7}\z/

where \h is a character in [0-9a-fA-F]

or:

/\A[0-9a-fA-F]{2}([:\-]?[0-9a-fA-F]{2}){5}\z|\A[0-9a-fA-F]{2}([:\-]?[0-9a-fA-F]{2}){7}\z/

this allows '-' or ':' or no separator to be used

This expression should do what you want to achieve.

dataSource.StateList.Where(s => countryCodes.Contains(s.CountryCode))

You can use "iPhone Configuration Utility" to manage provisioning profiles.

The copy constructor given by @Stephen C is the way to go when you have a Set you created (or when you know where it comes from). When it comes from a Map.entrySet(), it will depend on the Map implementation you're using:

findbugs says

The entrySet() method is allowed to return a view of the underlying Map in which a single Entry object is reused and returned during the iteration. As of Java 1.6, both IdentityHashMap and EnumMap did so. When iterating through such a Map, the Entry value is only valid until you advance to the next iteration. If, for example, you try to pass such an entrySet to an addAll method, things will go badly wrong.

As addAll() is called by the copy constructor, you might find yourself with a Set of only one Entry: the last one.

Not all Map implementations do that though, so if you know your implementation is safe in that regard, the copy constructor definitely is the way to go. Otherwise, you'd have to create new Entry objects yourself:

Set<K,V> copy = new HashSet<K,V>(map.size());
for (Entry<K,V> e : map.entrySet())
    copy.add(new java.util.AbstractMap.SimpleEntry<K,V>(e));

Edit: Unlike tests I performed on Java 7 and Java 6u45 (thanks to Stephen C), the findbugs comment does not seem appropriate anymore. It might have been the case on earlier versions of Java 6 (before u45) but I don't have any to test.

Good evening,

The previous clues to get SQLManagementStudio_x64_ENU.exe runing didn't work as stated for me. After a while of searching, trying, retrying again and again, I finally figured it out. When executing SQLManagementStudio_x64_ENU.exe on my Windows seven system, I kept runing into compatibility issues. The trick is to run SQLManagementStudio_x64_ENU.exe in compatibility mode with Windows XP SP2. Edit the installer properties and enable compatibility mode with XP (service pack 2), then you'll be able to access Mr Doug (answered Mar 4 at 15:09) resolution.

Cheers.

The assumption that one should never, ever use + for string concatenation, but instead always use ''.join may be a myth. It is true that using + creates unnecessary temporary copies of immutable string object but the other not oft quoted fact is that calling join in a loop would generally add the overhead of function call. Lets take your example.

Create two lists, one from the linked SO question and another a bigger fabricated

>>> myl1 = ['A','B','C','D','E','F']
>>> myl2=[chr(random.randint(65,90)) for i in range(0,10000)]

Lets create two functions, UseJoin and UsePlus to use the respective join and + functionality.

>>> def UsePlus():
    return [myl[i] + myl[i + 1] for i in range(0,len(myl), 2)]

>>> def UseJoin():
    [''.join((myl[i],myl[i + 1])) for i in range(0,len(myl), 2)]

Lets run timeit with the first list

>>> myl=myl1
>>> t1=timeit.Timer("UsePlus()","from __main__ import UsePlus")
>>> t2=timeit.Timer("UseJoin()","from __main__ import UseJoin")
>>> print "%.2f usec/pass" % (1000000 * t1.timeit(number=100000)/100000)
2.48 usec/pass
>>> print "%.2f usec/pass" % (1000000 * t2.timeit(number=100000)/100000)
2.61 usec/pass
>>> 

They have almost the same runtime.

Lets use cProfile

>>> myl=myl2
>>> cProfile.run("UsePlus()")
         5 function calls in 0.001 CPU seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1    0.001    0.001    0.001    0.001 <pyshell#1376>:1(UsePlus)
        1    0.000    0.000    0.001    0.001 <string>:1(<module>)
        1    0.000    0.000    0.000    0.000 {len}
        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
        1    0.000    0.000    0.000    0.000 {range}


>>> cProfile.run("UseJoin()")
         5005 function calls in 0.029 CPU seconds

   Ordered by: standard name

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
        1    0.015    0.015    0.029    0.029 <pyshell#1388>:1(UseJoin)
        1    0.000    0.000    0.029    0.029 <string>:1(<module>)
        1    0.000    0.000    0.000    0.000 {len}
        1    0.000    0.000    0.000    0.000 {method 'disable' of '_lsprof.Profiler' objects}
     5000    0.014    0.000    0.014    0.000 {method 'join' of 'str' objects}
        1    0.000    0.000    0.000    0.000 {range}

And it looks that using Join, results in unnecessary function calls which could add to the overhead.

Now coming back to the question. Should one discourage the use of + over join in all cases?

I believe no, things should be taken into consideration

1. Length of the String in Question
2. No of Concatenation Operation.

And off-course in a development pre-mature optimization is evil.

You always need to check for XACT_STATE(), irrelevant of the XACT_ABORT setting. I have an example of a template for stored procedures that need to handle transactions in the TRY/CATCH context at Exception handling and nested transactions:

create procedure [usp_my_procedure_name]
as
begin
    set nocount on;
    declare @trancount int;
    set @trancount = @@trancount;
    begin try
        if @trancount = 0
            begin transaction
        else
            save transaction usp_my_procedure_name;

        -- Do the actual work here

lbexit:
        if @trancount = 0   
            commit;
    end try
    begin catch
        declare @error int, @message varchar(4000), @xstate int;
        select @error = ERROR_NUMBER(),
               @message = ERROR_MESSAGE(), 
               @xstate = XACT_STATE();
        if @xstate = -1
            rollback;
        if @xstate = 1 and @trancount = 0
            rollback
        if @xstate = 1 and @trancount > 0
            rollback transaction usp_my_procedure_name;

        raiserror ('usp_my_procedure_name: %d: %s', 16, 1, @error, @message) ;
    end catch   
end

I had to do the following task to rename local and remote branch:

# Rename the local branch to the new name
git branch -m <old_name> <new_name>

#  Delete the old remote branch
git push origin --delete <old_name>

# push to new remote branch - creates new remote branch
git push origin <new_name>

# set new remote branch as default remote branch for local branch
git branch --set-upstream-to=origin/<new_name> <new_name>

I modified the above function to account for carriage returns in IE. It's untested but I did something similar with it in my code so it should be workable.

function getCaret(el) {
  if (el.selectionStart) { 
    return el.selectionStart; 
  } else if (document.selection) { 
    el.focus(); 

    var r = document.selection.createRange(); 
    if (r == null) { 
      return 0; 
    } 

    var re = el.createTextRange(), 
    rc = re.duplicate(); 
    re.moveToBookmark(r.getBookmark()); 
    rc.setEndPoint('EndToStart', re); 

    var add_newlines = 0;
    for (var i=0; i<rc.text.length; i++) {
      if (rc.text.substr(i, 2) == '\r\n') {
        add_newlines += 2;
        i++;
      }
    }

    //return rc.text.length + add_newlines;

    //We need to substract the no. of lines
    return rc.text.length - add_newlines; 
  }  
  return 0; 
}

In order to create a File from a HTTP URL you need to download the contents from that URL:

URL url = new URL("http://www.google.ro/logos/2011/twain11-hp-bg.jpg");
URLConnection connection = url.openConnection();
InputStream in = connection.getInputStream();
FileOutputStream fos = new FileOutputStream(new File("downloaded.jpg"));
byte[] buf = new byte[512];
while (true) {
    int len = in.read(buf);
    if (len == -1) {
        break;
    }
    fos.write(buf, 0, len);
}
in.close();
fos.flush();
fos.close();

The downloaded file will be found at the root of your project: {project}/downloaded.jpg

In simple words

$.ajax("info.txt").done(function(data) {
  alert(data);
}).fail(function(data){
  alert("Try again champ!");
});

if its get the info.text then it will alert and whatever function you add or if any how unable to retrieve info.text from the server then alert or error function.

This has found an accepted answered, but I recently came across the UIImage+animatedGIF UIImage extension. It provides the following category:

+[UIImage animatedImageWithAnimatedGIFURL:(NSURL *)url]

allowing you to simply:

#import "UIImage+animatedGIF.h"
UIImage* mygif = [UIImage animatedImageWithAnimatedGIFURL:[NSURL URLWithString:@"http://en.wikipedia.org/wiki/File:Rotating_earth_(large).gif"]];

Works like magic.

Using spread syntax with boolean (as suggested here) is not valid syntax. Spread can only be use with iterables.

I suggest the following:

const a = {
   ...(someCondition? {b: 5}: {} )
}

To add to vfilby's answer, you can just perform a RegEx replace within your code; no new classes are necessary. In case other newbies like myself stumple upon this question.

using System.Text.RegularExpressions;

Then...

private string StripHtml(string source)
{
        string output;

        //get rid of HTML tags
        output = Regex.Replace(source, "<[^>]*>", string.Empty);

        //get rid of multiple blank lines
        output = Regex.Replace(output, @"^\s*$\n", string.Empty, RegexOptions.Multiline);

        return output;
}

Your query should look like

UPDATE table_name
SET column1=value, column2=value2,...
WHERE some_column=some_value

You can check the below question for help

• SQL update query using joins?

If you're interested in learning a language which supports massive parallelism better go for OpenCL since you don't have an NVIDIA GPU. You can run OpenCL on Intel CPUs, but at best you can learn to program SIMDs. Optimization on CPU and GPU are different. I really don't think you can use Intel card for GPGPU.

The syntax to store the command output into a variable is var=$(command).

So you can directly do:

result=$(ls -l | grep -c "rahul.*patle")

And the variable $result will contain the number of matches.

I am using unix system.

In eclipse project-> Properties -> Java Compiler -> Errors/Warning -> Forbidden Access(access rule) -> Turn it to warning/Ignore(Previously it was set to Error).

Simple:

    dim input as string = "SPQR"
    dim format as string =""
    dim result as string = ""

    'pad left:
    format = "{0,-8}"
    result = String.Format(format,input)
    'result = "SPQR    "

    'pad right
    format = "{0,8}"
    result = String.Format(format,input)
    'result = "    SPQR"

There is no need to use an ObjectIndexer<T>, or change the interface of the original object (like suggested in most of the other answers). You can simply narrow the options for key to the ones that are of type string using the following:

type KeysMatching<T, V> = { [K in keyof T]: T[K] extends V ? K : never }[keyof T];

This great solution comes from an answer to a related question here.

Like that you narrow to keys inside T that hold V values. So in your case to to limit to string you would do:

type KeysMatching<ISomeObject, string>;

In your example:

interface ISomeObject {
    firstKey:   string;
    secondKey:  string;
    thirdKey:   string;
}

let someObject: ISomeObject = {
    firstKey:   'firstValue',
    secondKey:  'secondValue',
    thirdKey:   'thirdValue'
};

let key: KeysMatching<SomeObject, string> = 'secondKey';

// secondValue narrowed to string    
let secondValue = someObject[key];

The advantage is that your ISomeObject could now even hold mixed types, and you can anyway narrow the key to string values only, keys of other value types will be considered invalid. To illustrate:

interface ISomeObject {
    firstKey:   string;
    secondKey:  string;
    thirdKey:   string;
    fourthKey:  boolean;
}

let someObject: ISomeObject = {
    firstKey:   'firstValue',
    secondKey:  'secondValue',
    thirdKey:   'thirdValue'
    fourthKey:   true
};


// Type '"fourthKey"' is not assignable to type 'KeysMatching<ISomeObject, string>'.(2322)
let otherKey: KeysMatching<SomeOtherObject, string> = 'fourthKey';

let fourthValue = someOtherObject[otherKey];

You find this example in this playground.

You can tell Eclipse to ignore these serialVersionUID warnings:

Window > Preferences > Java > Compiler > Errors / Warnings > Potential Programming Problems

In case you didn't know, there are a lot of other warnings you can enable in this section (or even have some reported as errors), many are very useful:

• Potential Programming Problems: Possible accidental boolean assignment
• Potential Programming Problems: Null pointer access
• Unnecessary code: Local variable is never read
• Unnecessary code: Redundant null check
• Unnecessary code: Unnecessary cast or 'instanceof'

and many more.

We can override +. If unary + is used and its argument is itself an unary + call, then increment the relevant variable in the calling environment.

`+` <- function(e1,e2){
    # if unary `+`, keep original behavior
    if(missing(e2)) {
      s_e1 <- substitute(e1)
      # if e1 (the argument of unary +) is itself an unary `+` operation
      if(length(s_e1) == 2 && 
         identical(s_e1[[1]], quote(`+`)) && 
         length(s_e1[[2]]) == 1) {
        # increment value in parent environment
        eval.parent(substitute(e1 <- e1 + 1, list(e1 = s_e1[[2]])))
      # else unary `+` should just return it's input
      } else e1
    # if binary `+`, keep original behavior
    } else .Primitive("+")(e1, e2)
}

x <- 10
++x
x
# [1] 11

other operations don't change :

x + 2
# [1] 13
x ++ 2
# [1] 13
+x
# [1] 11
x
# [1] 11

Don't do it though, as you'll slow down everything. Or do it in another environment and make sure you don't have big loops on these instructions.

You can also just do this :

`++` <- function(x) eval.parent(substitute(x <- x + 1))
a <- 1
`++`(a)
a
# [1] 2

With jQuery you can use

$('#main-div .specific-class').length

otherwise in VanillaJS (from IE8 included) you may use

document.querySelectorAll('#main-div .specific-class').length;

The column in the database is probably a DECIMAL. You should process it as a BigInteger, not an Integer, otherwise you are losing digits. Or else change the column to int.

Here is my solution, the good thing about this one is that you can pass as many params as you like.

function console_log()
{
    $js_code = 'console.log(' . json_encode(func_get_args(), JSON_HEX_TAG) .
        ');';
    $js_code = '<script>' . $js_code . '</script>';
    echo $js_code;
}

Call it this way

console_log('DEBUG>>', 'Param 1', 'Param 2');
console_log('Console DEBUG:', $someRealVar1, $someVar, $someArray, $someObj);

Now you should be able to see output in your console, happy coding :)

If there are two elements element 1 and element 2. Element 2 is inside element 1 and we attach an event handler with both the elements lets say onClick. Now when we click on element 2 then eventHandler for both the elements will be executed. Now here the question is in which order the event will execute. If the event attached with element 1 executes first it is called event capturing and if the event attached with element 2 executes first this is called event bubbling. As per W3C the event will start in the capturing phase until it reaches the target comes back to the element and then it starts bubbling

The capturing and bubbling states are known by the useCapture parameter of addEventListener method

eventTarget.addEventListener(type,listener,[,useCapture]);

By Default useCapture is false. It means it is in the bubbling phase.

var div1 = document.querySelector("#div1");_x000D_
var div2 = document.querySelector("#div2");_x000D_
_x000D_
div1.addEventListener("click", function (event) {_x000D_
  alert("you clicked on div 1");_x000D_
}, true);_x000D_
_x000D_
div2.addEventListener("click", function (event) {_x000D_
  alert("you clicked on div 2");_x000D_
}, false);

#div1{_x000D_
  background-color:red;_x000D_
  padding: 24px;_x000D_
}_x000D_
_x000D_
#div2{_x000D_
  background-color:green;_x000D_
}

<div id="div1">_x000D_
  div 1_x000D_
  <div id="div2">_x000D_
    div 2_x000D_
  </div>_x000D_
</div>

Please try with changing true and false.

Open CMD (Run as administrator) type command:

git config --system --unset credential.helper

then enter new password for Git remote server.

As per the Android documentation for XML Attributes of android:layout_gravity, we can do it easily :)

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

    <ImageButton android:id="@+id/btnFindMe" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"

        android:layout_gravity="center"

        android:background="@drawable/findme"></ImageButton>

</LinearLayout>

You have to drop the foreign key. Foreign keys in MySQL automatically create an index on the table (There was a SO Question on the topic).

ALTER TABLE mytable DROP FOREIGN KEY mytable_ibfk_1 ; 

e.Handled = (int)e.Key >= 43 || (int)e.Key <= 34;

in preview keydown event of textbox.

You'd need attach an onFocus event to the input field via Javascript:

<input type="text" onfocus="this.value=''" value="..." ... />

You can download the inf file from here - Introducing PowerShell Prompt Here

I tried using the iframe embed code and the HTML5 player appeared, however, for some reason the iframe was completely breaking my site.

I messed around with the old object embed code and it works perfectly fine. So if you're having problems with the iframe here's the code i used:

<object width="640" height="360">
<param name="movie" value="http://www.youtube.com/embed/VIDEO_ID?html5=1&amp;rel=0&amp;hl=en_US&amp;version=3"/>
<param name="allowFullScreen" value="true"/>
<param name="allowscriptaccess" value="always"/>
<embed width="640" height="360" src="http://www.youtube.com/embed/VIDEO_ID?html5=1&amp;rel=0&amp;hl=en_US&amp;version=3" class="youtube-player" type="text/html" allowscriptaccess="always" allowfullscreen="true"/>
</object>

hope this is useful for someone

from datetime import datetime, timedelta

nine_hours_from_now = datetime.now() + timedelta(hours=9)
#datetime.datetime(2012, 12, 3, 23, 24, 31, 774118)

And then use string formatting to get the relevant pieces:

>>> '{:%H:%M:%S}'.format(nine_hours_from_now)
'23:24:31'

If you're only formatting the datetime then you can use:

>>> format(nine_hours_from_now, '%H:%M:%S')
'23:24:31'

Or, as @eumiro has pointed out in comments - strftime

Try this (It worked for me):

• Run VS as Administrator
• Manual update NuGet to most recent version
• Delete all bin and obj files in the project.
• Restart VS
• Recompile

I took it a bit further to get the answer closer to the original question of using placeholders to bind the params.

This answer will have to make two loops through the array to be used in the query. But it does solve the issue of having other column placeholders for more selective queries.

//builds placeholders to insert in IN()
foreach($array as $key=>$value) {
    $in_query = $in_query . ' :val_' . $key . ', ';
}

//gets rid of trailing comma and space
$in_query = substr($in_query, 0, -2);

$stmt = $db->prepare(
    "SELECT *
     WHERE id IN($in_query)";

//pind params for your placeholders.
foreach ($array as $key=>$value) {
    $stmt->bindParam(":val_" . $key, $array[$key])
}

$stmt->execute();

Maybe you should try using Starwind V2V Converter, you can get it from here - http://www.starwindsoftware.com/converter. It also supports IMG disk format and performs sector-by sector conversion between IMG, VMDK or VHD into and from any of them without making any changes to source image. This tool is free :)

You should make a symlink to php.ini. Sorry for russian link.

.nav ul li a#nav-ask{
    display:none;
}

The issue HttpServletRequest.login does not set authentication state in session has been fixed in 3.0.1. Update glassfish to the latest version and you're done.

Updating is quite straightforward:

glassfishv3/bin/pkg set-authority -P dev.glassfish.org
glassfishv3/bin/pkg image-update

The IF statement has these forms in PL/SQL:

IF THEN
IF THEN ELSE
IF THEN ELSIF

You have used elseif which in terms of PL/SQL is wrong. That need to be replaced with ELSIF.

So your code should appear like this.

    declare
        var_number number;
    begin
        var_number := 10;
        if var_number > 100 then
           dbms_output.put_line(var_number ||' is greater than 100');
--elseif should be replaced with elsif
        elsif var_number < 100 then
           dbms_output.put_line(var_number ||' is less than 100');
        else
           dbms_output.put_line(var_number ||' is equal to 100');
        end if;
    end; 

I had this problem as well. I found out that having a $(document).ready function that included a $.cookie in a script tag inside body while having cookie js load in the head BELOW jquery as intended resulted in $(document).ready beeing processed before the cookie plugin could finish loading.

I moved the cookie plugin load script in the body before the $(document).ready script and the error disappeared :D

I would recommend using DialogFragment.

Sure, creating a "Yes/No" dialog with it is pretty complex considering that it should be rather simple task, but creating a similar dialog box with Dialog is surprisingly complicated as well.

(Activity lifecycle makes it complicated - you must let Activity manage the lifecycle of the dialog box - and there is no way to pass custom parameters e.g. the custom message to Activity.showDialog if using API levels under 8)

The nice thing is that you can usually build your own abstraction on top of DialogFragment pretty easily.

since df.save(path, source, mode) is deprecated, (http://spark.apache.org/docs/1.5.0/api/scala/index.html#org.apache.spark.sql.DataFrame)

use df.write.format(source).mode("overwrite").save(path)
where df.write is DataFrameWriter

'source' can be ("com.databricks.spark.avro" | "parquet" | "json")

I'd just like to add to the very helpful answer from Kurt Pfeifle - there is now a Python wrapper for Tabula, and this seems to work very well so far: https://github.com/chezou/tabula-py

This will convert your PDF table to a Pandas data frame. You can also set the area in x,y co-ordinates which is obviously very handy for irregular data.

This answer is for react-router-4. You can wrap all the routes in Switch block, which functions just like the switch-case expression, and renders the component with the first matched route. eg)

<Switch>
      <Route path="/" component={home}/>
      <Route path="/home" component={home}/>
      <Route component={GenericNotFound}/> {/* The Default not found component */}
</Switch>

When to use exact

Without exact:

<Route path='/home'
       component = {Home} />

{/* This will also work for cases like https://<domain>/home/anyvalue. */}

With exact:

<Route exact path='/home'
       component = {Home} />

{/* 
     This will NOT work for cases like https://<domain>/home/anyvalue. 
     Only for https://<url>/home and https://<domain>/home/
*/}

Now if you are accepting routing parameters, and if it turns out incorrect, you can handle it in the target component itself. eg)

<Route exact path='/user/:email'
       render = { (props) => <ProfilePage {...props} user={this.state.user} />} />

Now in ProfilePage.js

if(this.props.match.params.email != desiredValue)
{
   <Redirect to="/notFound" component = {GenericNotFound}/>
   //Or you can show some other component here itself.
}

For more details you can go through this code:

App.js

ProfilePage.js

img {_x000D_
  display: block;_x000D_
  max-width:230px;_x000D_
  max-height:95px;_x000D_
  width: auto;_x000D_
  height: auto;_x000D_
}

<p>This image is originally 400x400 pixels, but should get resized by the CSS:</p>_x000D_
<img width="400" height="400" src="http://i.stack.imgur.com/aEEkn.png">

This will make image shrink if it's too big for specified area (as downside, it will not enlarge image).

Of course there is! Win CMD can do a lot more than just split text files :)

Split a text file into separate files of 'max' lines each:

Split text file (max lines each):
: Initialize
set input=file.txt
set max=10000

set /a line=1 >nul
set /a file=1 >nul
set out=!file!_%input%
set /a max+=1 >nul

echo Number of lines in %input%:
find /c /v "" < %input%

: Split file
for /f "tokens=* delims=[" %i in ('type "%input%" ^| find /v /n ""') do (

if !line!==%max% (
set /a line=1 >nul
set /a file+=1 >nul
set out=!file!_%input%
echo Writing file: !out!
)

REM Write next file
set a=%i
set a=!a:*]=]!
echo:!a:~1!>>out!
set /a line+=1 >nul
)

If above code hangs or crashes, this example code splits files faster (by writing data to intermediate files instead of keeping everything in memory):

eg. To split a file with 7,600 lines into smaller files of maximum 3000 lines.

1. Generate regexp string/pattern files with set command to be fed to /g flag of findstr

list1.txt

\[[0-9]\]
\[[0-9][0-9]\]
\[[0-9][0-9][0-9]\]
\[[0-2][0-9][0-9][0-9]\]

list2.txt

\[[3-5][0-9][0-9][0-9]\]

list3.txt

\[[6-9][0-9][0-9][0-9]\]

2. Split the file into smaller files:

type "%input%" | find /v /n "" | findstr /b /r /g:list1.txt > file1.txt
type "%input%" | find /v /n "" | findstr /b /r /g:list2.txt > file2.txt
type "%input%" | find /v /n "" | findstr /b /r /g:list3.txt > file3.txt

3. remove prefixed line numbers for each file split:
   eg. for the 1st file:

for /f "tokens=* delims=[" %i in ('type "%cd%\file1.txt"') do (
set a=%i
set a=!a:*]=]!
echo:!a:~1!>>file_1.txt)

Notes:
Works with leading whitespace, blank lines & whitespace lines.

Tested on Win 10 x64 CMD, on 4.4GB text file, 5651982 lines.

You can set the year range using this option in jQuery UI datepicker:

yearRange: "c-100:c+0", // last hundred years and current years

yearRange: "c-100:c+100", // last hundred years and future hundred years

yearRange: "c-10:c+10", // last ten years and future ten years

In my case I was throwing Exception on a namespaced file, so php tried to catch My\Namespace\Exception therefore not catching any exceptions at all.

Worth checking if catch (Exception $e) is finding the right Exception class.

Just try catch (\Exception $e) (with that \ there) and see if it works.

There is a handy online tool for testing location priority now:
location priority testing online

Adaptive thresholding is important if the lighting is uneven across the image. My preprocessing using GraphicsMagic is mentioned in this post: https://groups.google.com/forum/#!topic/tesseract-ocr/jONGSChLRv4

GraphicsMagic also has the -lat feature for Linear time Adaptive Threshold which I will try soon.

Another method of thresholding using OpenCV is described here: http://docs.opencv.org/trunk/doc/py_tutorials/py_imgproc/py_thresholding/py_thresholding.html

The second parameter of the callback function passed to each() will contain the actual DOM element and not a jQuery wrapper object. You can call the getAttribute() method of the element:

$('#category_sorting_form_save').click(function() {
    var elements = $("#category_sorting_elements > div");
    $.each(elements, function(key, value) {
        console.info(key, ": ", value);
        console.info("cat_id: ", value.getAttribute('cat_id'));
    });
});

Or wrap the element in a jQuery object yourself:

$('#category_sorting_form_save').click(function() {
    var elements = $("#category_sorting_elements > div");
    $.each(elements, function(key, value) {
        console.info(key, ": ", value);
        console.info("cat_id: ", $(value).attr('cat_id'));
    });
});

Or simply use $(this):

$('#category_sorting_form_save').click(function() {
    var elements = $("#category_sorting_elements > div");
    $.each(elements, function() {
        console.info("cat_id: ", $(this).attr('cat_id'));
    });
});

1. Writing JSON Parser Class

   public class JSONParser {
   
       static InputStream is = null;
       static JSONObject jObj = null;
       static String json = "";
   
       // constructor
       public JSONParser() {}
   
       public JSONObject getJSONFromUrl(String url) {
   
           // Making HTTP request
           try {
               // defaultHttpClient
               DefaultHttpClient httpClient = new DefaultHttpClient();
               HttpPost httpPost = new HttpPost(url);
   
               HttpResponse httpResponse = httpClient.execute(httpPost);
               HttpEntity httpEntity = httpResponse.getEntity();
               is = httpEntity.getContent();
   
           } catch (UnsupportedEncodingException e) {
               e.printStackTrace();
           } catch (ClientProtocolException e) {
               e.printStackTrace();
           } catch (IOException e) {
               e.printStackTrace();
           }
   
           try {
               BufferedReader reader = new BufferedReader(new InputStreamReader(
                       is, "iso-8859-1"), 8);
               StringBuilder sb = new StringBuilder();
               String line = null;
               while ((line = reader.readLine()) != null) {
                   sb.append(line + "\n");
               }
               is.close();
               json = sb.toString();
           } catch (Exception e) {
               Log.e("Buffer Error", "Error converting result " + e.toString());
           }
   
           // try parse the string to a JSON object
           try {
               jObj = new JSONObject(json);
           } catch (JSONException e) {
               Log.e("JSON Parser", "Error parsing data " + e.toString());
           }
   
           // return JSON String
           return jObj;
   
       }
   }
   

2. Parsing JSON Data
   Once you created parser class next thing is to know how to use that class. Below i am explaining how to parse the json (taken in this example) using the parser class.

   2.1. Store all these node names in variables: In the contacts json we have items like name, email, address, gender and phone numbers. So first thing is to store all these node names in variables. Open your main activity class and declare store all node names in static variables.

   // url to make request
   private static String url = "http://api.9android.net/contacts";
   
   // JSON Node names
   private static final String TAG_CONTACTS = "contacts";
   private static final String TAG_ID = "id";
   private static final String TAG_NAME = "name";
   private static final String TAG_EMAIL = "email";
   private static final String TAG_ADDRESS = "address";
   private static final String TAG_GENDER = "gender";
   private static final String TAG_PHONE = "phone";
   private static final String TAG_PHONE_MOBILE = "mobile";
   private static final String TAG_PHONE_HOME = "home";
   private static final String TAG_PHONE_OFFICE = "office";
   
   // contacts JSONArray
   JSONArray contacts = null;
   

   2.2. Use parser class to get JSONObject and looping through each json item. Below i am creating an instance of JSONParser class and using for loop i am looping through each json item and finally storing each json data in variable.

   // Creating JSON Parser instance
   JSONParser jParser = new JSONParser();
   
   // getting JSON string from URL
   JSONObject json = jParser.getJSONFromUrl(url);
   
       try {
       // Getting Array of Contacts
       contacts = json.getJSONArray(TAG_CONTACTS);
   
       // looping through All Contacts
       for(int i = 0; i < contacts.length(); i++){
           JSONObject c = contacts.getJSONObject(i);
   
           // Storing each json item in variable
           String id = c.getString(TAG_ID);
           String name = c.getString(TAG_NAME);
           String email = c.getString(TAG_EMAIL);
           String address = c.getString(TAG_ADDRESS);
           String gender = c.getString(TAG_GENDER);
   
           // Phone number is agin JSON Object
           JSONObject phone = c.getJSONObject(TAG_PHONE);
           String mobile = phone.getString(TAG_PHONE_MOBILE);
           String home = phone.getString(TAG_PHONE_HOME);
           String office = phone.getString(TAG_PHONE_OFFICE);
   
       }
   } catch (JSONException e) {
       e.printStackTrace();
   }
   

Edit (2020.12.28): GitHub change default master branch to main branch since October 2020. See https://github.com/github/renaming

Update March 2013

Git 1.8.2 added the possibility to track branches.

"git submodule" started learning a new mode to integrate with the tip of the remote branch (as opposed to integrating with the commit recorded in the superproject's gitlink).

# add submodule to track master branch
git submodule add -b master [URL to Git repo];

# update your submodule
git submodule update --remote 

If you had a submodule already present you now wish would track a branch, see "how to make an existing submodule track a branch".

Also see Vogella's tutorial on submodules for general information on submodules.

Note:

git submodule add -b . [URL to Git repo];
                    ^^^

See git submodule man page:

A special value of . is used to indicate that the name of the branch in the submodule should be the same name as the current branch in the current repository.

See commit b928922727d6691a3bdc28160f93f25712c565f6:

submodule add: If --branch is given, record it in .gitmodules

This allows you to easily record a submodule.<name>.branch option in .gitmodules when you add a new submodule. With this patch,

$ git submodule add -b <branch> <repository> [<path>]
$ git config -f .gitmodules submodule.<path>.branch <branch>

reduces to

$ git submodule add -b <branch> <repository> [<path>]

This means that future calls to

$ git submodule update --remote ...

will get updates from the same branch that you used to initialize the submodule, which is usually what you want.

Signed-off-by: W. Trevor King [email protected]

Original answer (February 2012):

A submodule is a single commit referenced by a parent repo.
Since it is a Git repo on its own, the "history of all commits" is accessible through a git log within that submodule.

So for a parent to track automatically the latest commit of a given branch of a submodule, it would need to:

• cd in the submodule
• git fetch/pull to make sure it has the latest commits on the right branch
• cd back in the parent repo
• add and commit in order to record the new commit of the submodule.

gitslave (that you already looked at) seems to be the best fit, including for the commit operation.

It is a little annoying to make changes to the submodule due to the requirement to check out onto the correct submodule branch, make the change, commit, and then go into the superproject and commit the commit (or at least record the new location of the submodule).

Other alternatives are detailed here.

this is when you have one dictionary list:

import csv
with open('names.csv', 'w') as csvfile:
    fieldnames = ['first_name', 'last_name']
    writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
    writer.writeheader()
    writer.writerow({'first_name': 'Baked', 'last_name': 'Beans'})

According to the explanation in my “main” answer the document in question should be marked up according to an outline.

In the following two tables I show:

• the original HTML and its outline
• a possible intended outline and the HTML doing that

original html (shortened)
_{<body> <section> <header> <div id=logo></div> <div id=language></div> </header> <nav> ... </nav> <div id=main> <div id=main-left> <article> <header> <h1>The real thing</h1> </header> </article> </div> <div id=main-right> <section id=main-right-hot> <h2>Hot items</h2> </section> <section id=main-right-new> <h2>New items</h2> </section> </div> </div> <div id=news-items> <header> <h2>The latest news</h2> </header> <div id=item_1> <article> <header> <h3>...</h3> </header> <a>read more</a> </article> </div> <div id=item_2> <article> <header> <h3>...</h3> </header> <a>read more</a> </article> </div> <div id=item_3> <article> <header> <h3>...</h3> </header> <a>read more</a> </article> </div> </div> <footer> <ul><li>...</ul> </footer> </section>}

original html relevant for outline
_{<body> <section> // logo and language <nav> ... </nav> <article> <h1>The real thing</h1> </article> <section> <h2>Hot items</h2> </section> <section> <h2>New items</h2> </section> <h2>The latest news</h2> <article> <h3>...</h3> </article> <article> <h3>...</h3> </article> <article> <h3>...</h3> </article> // footer links </section>}












































resulting outline
1. (untitled document) 1.1. (untitled section) 1.1.1. (untitled navigation) 1.1.2. The real thing (h1) 1.1.3. Hot items (h2) 1.1.4. New items (h2) 1.1.5. The latest news (h2) 1.1.6. news item_1 (h3) 1.1.7. news item_2 (h3) 1.1.8. news item_3 (h3)


The outline of the original is
definitively not what was intended.

The following table shows my proposal for an improved version. I use the following markup:

• <removed>
• <NEW_OR_CHANGED_ELEMENT>
• <element MOVED_ATTRIBUTE=1>

possible intended outline
1. (main) 1.1. The real thing 1.2. (hot&new) 1.2.1. Hot items 1.2.2. New items 2. The latest news 2.1. news item_1 2.2. news item_2 2.3. news item_3










































































modified html
_{<body>  <section> <header> <ASIDE> <div id=logo></div> <div id=language></div> </ASIDE> </header> <nav> ... </nav> <ARTICLE id=main>   <div id=main-left> <article ID=main-left> <header> <h1>The real thing</h1> </header> </article>   </div> <ARTICLE id=main-right> <ARTICLE id=main-right-hot> <h2>Hot items</h2> </ARTICLE> <ARTICLE id=main-right-new> <h2>New items</h2> </ARTICLE> </ARTICLE> </ARTICE> <ARTICLE id=news-items> <header> <h2>The latest news</h2> </header>   <div id=item_1> <article ID=item_1> <header> <h3>...</h3> </header> <a>read more</a> </article>   </div>   <div id=item_2> <article ID=item_2> <header> <h3>...</h3> </header> <a>read more</a> </article>   </div>   <div id=item_3> <article ID=item_3> <header> <h3>...</h3> </header> <a>read more</a> </article>   </div> </ARTICLE> <footer> <NAV> <ul><li>...</ul> </NAV> </footer>  </section>``}

resulting outline
1. (untitled document) 1.1. (untitled logo and lang) 1.2. (untitled navigation) 1.3. (untitled main) 1.3.1 The real thing 1.3.2. (untitled hot&new) 1.3.2.1. Hot items 1.3.2.2. New items 1.4. The latest news 1.4.1. news item_1 1.4.2. news item_2 1.4.3. news item_3 1.5. (untitled footer nav)


The modified HTML reflects the
intended outline way better than
the original.

What you can do to resolve your conflict is

svn resolve --accept working -R <path>

where <path> is where you have your conflict (can be the root of your repo).

Explanations:

• resolve asks svn to resolve the conflict
• accept working specifies to keep your working files
• -R stands for recursive

Hope this helps.

EDIT:

To sum up what was said in the comments below:

• <path> should be the directory in conflict (C:\DevBranch\ in the case of the OP)
• it's likely that the origin of the conflict is
  • either the use of the svn switch command
  • or having checked the Switch working copy to new branch/tag option at branch creation
• more information about conflicts can be found in the dedicated section of Tortoise's documentation.
• to be able to run the command, you should have the CLI tools installed together with Tortoise:

[AA[i:i+SS] for i in range(len(AA))[::SS]]

Where AA is array, SS is chunk size. For example:

>>> AA=range(10,21);SS=3
>>> [AA[i:i+SS] for i in range(len(AA))[::SS]]
[[10, 11, 12], [13, 14, 15], [16, 17, 18], [19, 20]]
# or [range(10, 13), range(13, 16), range(16, 19), range(19, 21)] in py3

Use int(@array) as it threats the argument as scalar.

String file = "";

try {

    InputStream is = new FileInputStream(filename);
    String UTF8 = "utf8";
    int BUFFER_SIZE = 8192;

    BufferedReader br = new BufferedReader(new InputStreamReader(is,
            UTF8), BUFFER_SIZE);
    String str;
    while ((str = br.readLine()) != null) {
        file += str;
    }
} catch (Exception e) {

}

Try this,.. :-)

To read only the first row of the csv file use next() on the reader object.

with open('some.csv', newline='') as f:
  reader = csv.reader(f)
  row1 = next(reader)  # gets the first line
  # now do something here 
  # if first row is the header, then you can do one more next() to get the next row:
  # row2 = next(f)

or :

with open('some.csv', newline='') as f:
  reader = csv.reader(f)
  for row in reader:
    # do something here with `row`
    break

Unless someone can recommend a free tool to do this, you can achieve this with ReSharper:

ReSharper >> Options... >> Languages/C# >> Line Breaks and Wrapping

• Check "Wrap long lines"
• Set "Right Margin (columns)" to the required value (default is 120)

Hope that helps.

According to Scott Myers, Effective C++ (3rd ed.) item 42 (which must, of course, be the ultimate answer) - the difference is "nothing".

Advice is to use "class" if it is expected T will always be a class, with "typename" if other types (int, char* whatever) may be expected. Consider it a usage hint.

You should not use your domain models in your views. ViewModels are the correct way to do it.

You need to map your domain model's necessary fields to viewmodel and then use this viewmodel in your controllers. This way you will have the necessery abstraction in your application.

If you never heard of viewmodels, take a look at this.

To follow up on Yenchi's comment above, the OK button will also do nothing if the camera app can't write to the directory in question.

That means that you can't create the file in a place that's only writeable by your application (for instance, something under getCacheDir()) Something under getExternalFilesDir() ought to work, however.

It would be nice if the camera app printed an error message to the logs if it could not write to the specified EXTRA_OUTPUT path, but I didn't find one.

To use GPU from docker container, instead of using native Docker, use Nvidia-docker. To install Nvidia docker use following commands

curl -s -L https://nvidia.github.io/nvidia-docker/gpgkey |  sudo apt-key add -
curl -s -L https://nvidia.github.io/nvidia-docker/ubuntu16.04/amd64/nvidia-
docker.list | sudo tee /etc/apt/sources.list.d/nvidia-docker.list
sudo apt-get update
sudo apt-get install -y nvidia-docker
sudo pkill -SIGHUP dockerd # Restart Docker Engine
sudo nvidia-docker run --rm nvidia/cuda nvidia-smi # finally run nvidia-smi in the same container

I found a simple explanation.

Short Answer:

dependencies "...are those that your project really needs to be able to work in production."

devDependencies "...are those that you need during development."

peerDependencies "if you want to create and publish your own library so that it can be used as a dependency"

More details in this post: https://code-trotter.com/web/dependencies-vs-devdependencies-vs-peerdependencies

Here's a quick Perl script to get what you need. It needs some whitespace chomping.

#!/bin/perl

$sample = <<END;
Subject:
  Security ID:        S-1-5-21-3368353891-1012177287-890106238-22451
  Account Name:       ChamaraKer
  Account Domain:     JIC
  Logon ID:       0x1fffb

Object:
  Object Server:  Security
  Object Type:    File
  Object Name:    D:\\ApacheTomcat\\apache-tomcat-6.0.36\\logs\\localhost.2013- 07-01.log
  Handle ID:  0x11dc
END

my @sample_lines = split /\n/, $sample;
my $path;

foreach my $line (@sample_lines) {
  ($path) = $line =~ m/Object Name:([^s]+)/g;
  if($path) {
    print $path . "\n";
  }
}

Here is the source code: you can get the text which is exactly in the URL

URL = ''
page = requests.get(URL)
soup = bs4.BeautifulSoup(page.content,'html.parser').get_text()
print(soup)

• How do I convert my results to only hours and minutes
  • The accepted answer only returns days + hours. Minutes are not included.
• To provide a column that has hours and minutes, as hh:mm or x hours y minutes, would require additional calculations and string formatting.
• This answer shows how to get either total hours or total minutes as a float, using timedelta math, and is faster than using .astype('timedelta64[h]')
• Pandas Time Deltas User Guide
• Pandas Time series / date functionality User Guide
• python timedelta objects: See supported operations.
• The following sample data is already a datetime64[ns] dtype. It is required that all relevant columns are converted using pandas.to_datetime().

import pandas as pd

# test data from OP, with values already in a datetime format
data = {'to_date': [pd.Timestamp('2014-01-24 13:03:12.050000'), pd.Timestamp('2014-01-27 11:57:18.240000'), pd.Timestamp('2014-01-23 10:07:47.660000')],
        'from_date': [pd.Timestamp('2014-01-26 23:41:21.870000'), pd.Timestamp('2014-01-27 15:38:22.540000'), pd.Timestamp('2014-01-23 18:50:41.420000')]}

# test dataframe; the columns must be in a datetime format; use pandas.to_datetime if needed
df = pd.DataFrame(data)

# add a timedelta column if wanted. It's added here for information only
# df['time_delta_with_sub'] = df.from_date.sub(df.to_date)  # also works
df['time_delta'] = (df.from_date - df.to_date)

# create a column with timedelta as total hours, as a float type
df['tot_hour_diff'] = (df.from_date - df.to_date) / pd.Timedelta(hours=1)

# create a colume with timedelta as total minutes, as a float type
df['tot_mins_diff'] = (df.from_date - df.to_date) / pd.Timedelta(minutes=1)

# display(df)
                  to_date               from_date             time_delta  tot_hour_diff  tot_mins_diff
0 2014-01-24 13:03:12.050 2014-01-26 23:41:21.870 2 days 10:38:09.820000      58.636061    3518.163667
1 2014-01-27 11:57:18.240 2014-01-27 15:38:22.540 0 days 03:41:04.300000       3.684528     221.071667
2 2014-01-23 10:07:47.660 2014-01-23 18:50:41.420 0 days 08:42:53.760000       8.714933     522.896000

Other methods

• An item of note from the podcast in Other Resources, .total_seconds() was added and merged when the core developer was on vacation, and would not have been approved.
  • This is also why there aren't other .total_xx methods.

# convert the entire timedelta to seconds
# this is the same as td / timedelta(seconds=1)
(df.from_date - df.to_date).dt.total_seconds()
[out]:
0    211089.82
1     13264.30
2     31373.76
dtype: float64

# get the number of days
(df.from_date - df.to_date).dt.days
[out]:
0    2
1    0
2    0
dtype: int64

# get the seconds for hours + minutes + seconds, but not days
# note the difference from total_seconds
(df.from_date - df.to_date).dt.seconds
[out]:
0    38289
1    13264
2    31373
dtype: int64

Other Resources

• Talk Python to Me: Episode #271: Unlock the mysteries of time, Python's datetime that is!
  • Timedelta begins at 31 minutes
  • As per Python core developer Paul Ganssle and python dateutil maintainer:
    • Use (df.from_date - df.to_date) / pd.Timedelta(hours=1)
    • Don't use (df.from_date - df.to_date).dt.total_seconds() / 3600
      • pandas.Series.dt.total_seconds
      • .dt accessor
• Real Python: Using Python datetime to Work With Dates and Times
• The dateutil module provides powerful extensions to the standard datetime module.

%%timeit test

import pandas as pd

# dataframe with 2M rows
data = {'to_date': [pd.Timestamp('2014-01-24 13:03:12.050000'), pd.Timestamp('2014-01-27 11:57:18.240000')], 'from_date': [pd.Timestamp('2014-01-26 23:41:21.870000'), pd.Timestamp('2014-01-27 15:38:22.540000')]}
df = pd.DataFrame(data)
df = pd.concat([df] * 1000000).reset_index(drop=True)

%%timeit
(df.from_date - df.to_date) / pd.Timedelta(hours=1)
[out]:
43.1 ms ± 1.05 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)

%%timeit
(df.from_date - df.to_date).astype('timedelta64[h]')
[out]:
59.8 ms ± 1.29 ms per loop (mean ± std. dev. of 7 runs, 10 loops each)

I presume that your problem with background-image is that it would be inefficient with a source for each image inside a stylesheet. My suggestion is to set the source inline:

<div style = 'background-image: url(image.gif)'></div>

div {
    background-repeat: no-repeat;
    background-position: 50%;
    border-radius: 50%;
    width: 100px;
    height: 100px;
}

Fiddle

Odds are good you did the right stuff on the back end in getting the date, but there's nothing to indicate that you didn't take that GMT time and format it according to your machine's current locale.

final Date currentTime = new Date();

final SimpleDateFormat sdf =
        new SimpleDateFormat("EEE, MMM d, yyyy hh:mm:ss a z");

// Give it to me in GMT time.
sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
System.out.println("GMT time: " + sdf.format(currentTime));

The key is to use your own DateFormat, not the system provided one. That way you can set the DateFormat's timezone to what you wish, instead of it being set to the Locale's timezone.

Please run below code may it helps you :)

var str = "this,is,an,example";_x000D_
var strArr = str.split(',');_x000D_
var data = "";_x000D_
for(var i=0; i<strArr.length; i++){_x000D_
  data += "Index : "+i+" value : "+strArr[i]+"<br/>";_x000D_
}_x000D_
document.getElementById('print').innerHTML = data;

<div id="print">_x000D_
</div>

Another approach is to use ForEach-Object to project individual items to a string and then use the Out-String CmdLet to project the final results to a string or string array:

gci Microsoft.PowerShell.Core\Registry::HKEY_CLASSES_ROOT\CID | foreach { "CID Key {0}" -f $_.Name } | Out-String

#Result: One multi-line string equal to:
@"
CID Key HKEY_CLASSES_ROOT\CID\2a621c8a-7d4b-4d7b-ad60-a957fd70b0d0
CID Key HKEY_CLASSES_ROOT\CID\2ec6f5b2-8cdc-461e-9157-ffa84c11ba7d
CID Key HKEY_CLASSES_ROOT\CID\5da2ceaf-bc35-46e0-aabd-bd826023359b
CID Key HKEY_CLASSES_ROOT\CID\d13ad82e-d4fb-495f-9b78-01d2946e6426
"@

gci Microsoft.PowerShell.Core\Registry::HKEY_CLASSES_ROOT\CID | foreach { "CID Key {0}" -f $_.Name } | Out-String -Stream

#Result: An array of single line strings equal to:
@(
"CID Key HKEY_CLASSES_ROOT\CID\2a621c8a-7d4b-4d7b-ad60-a957fd70b0d0",
"CID Key HKEY_CLASSES_ROOT\CID\2ec6f5b2-8cdc-461e-9157-ffa84c11ba7d",
"CID Key HKEY_CLASSES_ROOT\CID\5da2ceaf-bc35-46e0-aabd-bd826023359b",
"CID Key HKEY_CLASSES_ROOT\CID\d13ad82e-d4fb-495f-9b78-01d2946e6426")

The benefit of this approach is that you can store the result to a variable and it will NOT have any empty lines.

From the command line, it's simply:

printf "compute sha1" | openssl sha1

You can invoke the library like this:

#include <stdio.h>
#include <string.h>
#include <openssl/sha.h>

int main()
{
    unsigned char ibuf[] = "compute sha1";
    unsigned char obuf[20];

    SHA1(ibuf, strlen(ibuf), obuf);

    int i;
    for (i = 0; i < 20; i++) {
        printf("%02x ", obuf[i]);
    }
    printf("\n");

    return 0;
}

It's recommended to put the image to the resources, than you can use it like this:

imageView = new ImageView("/gui.img/img.jpg");

To reduce verbosity, you can use a static import:

import static java.util.concurrent.TimeUnit.NANOSECONDS;

-and henceforth just type

NANOSECONDS.toSeconds(elapsedTime);

As other have already said, everything in S3 is an object. To you, it may be files and folders. But to S3, they're just objects.

If you don't need objects which end with a '/' you can safely delete them e.g. via REST api or AWS Java SDK (I assume you have write access). You will not lose "nested files" (there no files, so you will not lose objects whose names are prefixed with the key you delete)

AmazonS3 amazonS3 = AmazonS3ClientBuilder.standard().withCredentials(new ProfileCredentialsProvider()).withRegion("region").build();
amazonS3.deleteObject(new DeleteObjectRequest("my-bucket", "users/<user-id>/contacts/<contact-id>/"));

Please note that I'm using ProfileCredentialsProvider so that my requests are not anonymous. Otherwise, you will not be able to delete an object. I have my AWS keep key stored in ~/.aws/credentials file.

You could just loop the rows and read the same cell from each row (doesn't this comprise a column?).

Generally speaking, I create a namespace for a body of code if I believe there might possibly be function or type name conflicts with other libraries. It also helps to brand code, ala boost:: .

If you're interested in realtime plotting, I'd recommend looking into matplotlib's animation API. In particular, using blit to avoid redrawing the background on every frame can give you substantial speed gains (~10x):

#!/usr/bin/env python

import numpy as np
import time
import matplotlib
matplotlib.use('GTKAgg')
from matplotlib import pyplot as plt


def randomwalk(dims=(256, 256), n=20, sigma=5, alpha=0.95, seed=1):
    """ A simple random walk with memory """

    r, c = dims
    gen = np.random.RandomState(seed)
    pos = gen.rand(2, n) * ((r,), (c,))
    old_delta = gen.randn(2, n) * sigma

    while True:
        delta = (1. - alpha) * gen.randn(2, n) * sigma + alpha * old_delta
        pos += delta
        for ii in xrange(n):
            if not (0. <= pos[0, ii] < r):
                pos[0, ii] = abs(pos[0, ii] % r)
            if not (0. <= pos[1, ii] < c):
                pos[1, ii] = abs(pos[1, ii] % c)
        old_delta = delta
        yield pos


def run(niter=1000, doblit=True):
    """
    Display the simulation using matplotlib, optionally using blit for speed
    """

    fig, ax = plt.subplots(1, 1)
    ax.set_aspect('equal')
    ax.set_xlim(0, 255)
    ax.set_ylim(0, 255)
    ax.hold(True)
    rw = randomwalk()
    x, y = rw.next()

    plt.show(False)
    plt.draw()

    if doblit:
        # cache the background
        background = fig.canvas.copy_from_bbox(ax.bbox)

    points = ax.plot(x, y, 'o')[0]
    tic = time.time()

    for ii in xrange(niter):

        # update the xy data
        x, y = rw.next()
        points.set_data(x, y)

        if doblit:
            # restore background
            fig.canvas.restore_region(background)

            # redraw just the points
            ax.draw_artist(points)

            # fill in the axes rectangle
            fig.canvas.blit(ax.bbox)

        else:
            # redraw everything
            fig.canvas.draw()

    plt.close(fig)
    print "Blit = %s, average FPS: %.2f" % (
        str(doblit), niter / (time.time() - tic))

if __name__ == '__main__':
    run(doblit=False)
    run(doblit=True)

Output:

Blit = False, average FPS: 54.37
Blit = True, average FPS: 438.27

Lots of the above helped for me, plus the accepted answer, but since I was on an EC2 instance, I had no idea what my instance name was. Finally, I opened SQLServer Configuration Manager and in the Name column, use whatever is there as your connection server, so in my case, .\EC2SQLEXPRESS and worked great!

Use the Apache commons lang3 lib instead

 EnumUtils.isValidEnum(MyEnum.class, myValue)

Using parameters in batch files: %0 and %9

Batch files can refer to the words passed in as parameters with the tokens: %0 to %9.

%0 is the program name as it was called.
%1 is the first command line parameter
%2 is the second command line parameter
and so on till %9.

parameters passed in on the commandline must be alphanumeric characters and delimited by spaces. Since %0 is the program name as it was called, in DOS %0 will be empty for AUTOEXEC.BAT if started at boot time.

Example:

Put the following command in a batch file called mybatch.bat:

@echo off
@echo hello %1 %2
pause

Invoking the batch file like this: mybatch john billy would output:

hello john billy

Get more than 9 parameters for a batch file, use: %*

The Percent Star token %* means "the rest of the parameters". You can use a for loop to grab them, as defined here:

http://www.robvanderwoude.com/parameters.php

Notes about delimiters for batch parameters

Some characters in the command line parameters are ignored by batch files, depending on the DOS version, whether they are "escaped" or not, and often depending on their location in the command line:

commas (",") are replaced by spaces, unless they are part of a string in 
double quotes

semicolons (";") are replaced by spaces, unless they are part of a string in 
double quotes

"=" characters are sometimes replaced by spaces, not if they are part of a 
string in double quotes

the first forward slash ("/") is replaced by a space only if it immediately 
follows the command, without a leading space

multiple spaces are replaced by a single space, unless they are part of a 
string in double quotes

tabs are replaced by a single space

leading spaces before the first command line argument are ignored

Please use as PendingIntent while showing notification than it will be resolved.

PendingIntent intent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);

Add PendingIntent.FLAG_UPDATE_CURRENT as last field.

I suggest to use npm ci. If you want to install only production-needed packages (as you wrote - without devDependencies) then:

npm ci --only=production

or

NODE_ENV=production npm ci

If you prefer oldschool npm install then:

npm install --production

or

NODE_ENV=production npm install

Here is good answer why you should use npm ci.

With xidel:

curl <...> | xidel - -se '$json'

xidel can probably retrieve the JSON for you as well.

Make sure that you do not have any null or NaN values in the list you want to sort. If there are NaN values, then your sort will be off, impacting the sorting of the non-null values.

Check out Python: sort function breaks in the presence of nan

You can also look into using the Collection Object. This usually works better than an array for custom objects, since it dynamically sizes and has methods for:

• Add
• Count
• Remove
• Item(index)

Plus its normally easier to loop through a collection too since you can use the for...each structure very easily with a collection.

I have a hacky way that definitely works!!

System.setProperty("file.encoding","UTF-8");
Field charset = Charset.class.getDeclaredField("defaultCharset");
charset.setAccessible(true);
charset.set(null,null);

This way you are going to trick JVM which would think that charset is not set and make it to set it again to UTF-8, on runtime!

Simple example

Shamelessly adapted from: http://www.gnu.org/software/automake/manual/html_node/Creating-amhello.html and tested on Ubuntu 14.04 Automake 1.14.1.

Makefile.am

SUBDIRS = src
dist_doc_DATA = README.md

README.md

Some doc.

configure.ac

AC_INIT([automake_hello_world], [1.0], [[email protected]])
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
AC_PROG_CC
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([
 Makefile
 src/Makefile
])
AC_OUTPUT

src/Makefile.am

bin_PROGRAMS = autotools_hello_world
autotools_hello_world_SOURCES = main.c

src/main.c

#include <config.h>
#include <stdio.h>

int main (void) {
  puts ("Hello world from " PACKAGE_STRING);
  return 0;
}

Usage

autoreconf --install
mkdir build
cd build
../configure
make
sudo make install
autoconf_hello_world
sudo make uninstall

This outputs:

Hello world from automake_hello_world 1.0

Notes

• autoreconf --install generates several template files which should be tracked by Git, including Makefile.in. It only needs to be run the first time.

• make install installs:

  • the binary to /usr/local/bin
  • README.md to /usr/local/share/doc/automake_hello_world

On GitHub for you to try it out.

alias_method can be redefined if need be. (it's defined in the Module class.)

alias's behavior changes depending on its scope and can be quite unpredictable at times.

Verdict: Use alias_method - it gives you a ton more flexibility.

Usage:

def foo
  "foo"
end

alias_method :baz, :foo

You can use geom_col() directly. See the differences between geom_bar() and geom_col() in this link https://ggplot2.tidyverse.org/reference/geom_bar.html

geom_bar() makes the height of the bar proportional to the number of cases in each group If you want the heights of the bars to represent values in the data, use geom_col() instead.

ggplot(data_country)+aes(x=country,y = conversion_rate)+geom_col()

With React Functional way

import React, { useEffect } from "react";
import ReactDOM from "react-dom";
import Button from "@material-ui/core/Button";

const App = () => {
  const saySomething = (something) => {
    console.log(something);
  };
  useEffect(() => {
    saySomething("from useEffect");
  });
  const handleClick = (e) => {
    saySomething("element clicked");
  };
  return (
    <Button variant="contained" color="primary" onClick={handleClick}>
      Hello World
    </Button>
  );
};

ReactDOM.render(<App />, document.querySelector("#app"));

https://codesandbox.io/s/currying-meadow-gm9g0

Your null pointer exception seems to be on this line:

String url = intent.getExtras().getString("userurl");

because intent.getExtras() returns null when the intent doesn't have any extras.

You have to realize that this piece of code:

Intent Main = new Intent(this, ToClass.class);
Main.putExtra("userurl", url);
startActivity(Main);

doesn't start the activity you wrote in Main.java, it will attempt to start an activity called ToClass and if that doesn't exist, your app crashes.

Also, there is no such thing as "android.intent.action.start" so the manifest should look more like:

<activity android:name=".start" android:label="@string/app_name">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>
<activity android:name= ".Main">
</activity>

I hope this fixes some of the issues you are encountering but I strongly suggest you check out some "getting started" tutorials for android development and build up from there.

if you are running nvm you might want to run nvm use <desired-node-version> This keeps node consistent with npm

Assuming you're using jQuery..

var input = '19 51 2.108997\n20 47 2.1089';
var lines = input.split('\n');
var output = '';
$.each(lines, function(key, line) {
    var parts = line.split(' ');
    output += '<span>' + parts[0] + ' ' + parts[1] + '</span><span>' + parts[2] + '</span>\n';
});
$(output).appendTo('body');

You can only do so during a transaction.

BEGIN;
INSERT INTO xxx ...;
DELETE FROM ...;

Then you can either:

COMMIT; -- will confirm your changes

Or

ROLLBACK -- will undo your previous changes

There is also a case when you want to refresh only specific iframe on page and not the full page.

You do is as follows:

public void refreshIFrameByJavaScriptExecutor(String iFrameId){
        String script= "document.getElementById('" + iFrameId+ "').src = " + "document.getElementById('" + iFrameId+ "').src";
       ((IJavaScriptExecutor)WebDriver).ExecuteScript(script);
}

Try this, at the end of the each loop, ids array will contain all the hexcodes.

var ids = [];

    $(document).ready(function($) {
    var $div = $("<div id='hexCodes'></div>").appendTo(document.body), code;
    $(".color_cell").each(function() {
        code = $(this).attr('id');
        ids.push(code);
        $div.append(code + "<br />");
    });



});

@kit's answer is okay, but remember to add ROUTER_PROVIDERS to providers in the component. Then you can redirect to another page within ngOnInit method:

import {Component, OnInit} from 'angular2/core';
import {Router, ROUTER_PROVIDERS} from 'angular2/router'

@Component({
    selector: 'loginForm',
    templateUrl: 'login.html',
    providers: [ROUTER_PROVIDERS]
})

export class LoginComponent implements OnInit {

    constructor(private router: Router) { }

    ngOnInit() {
        this.router.navigate(['./SomewhereElse']);
    }

}

Using dlpyr::mutate and forcats::fct_recode:

library(dplyr)
library(forcats)

iris <- iris %>%  
  mutate(Species = fct_recode(Species,
    "Virginica" = "virginica",
    "Versicolor" = "versicolor"
  )) 

iris %>% 
  count(Species)

# A tibble: 3 x 2
     Species     n
      <fctr> <int>
1     setosa    50
2 Versicolor    50
3  Virginica    50   

Yes, 4,2 means "4 digits total, 2 of which are after the decimal place". That translates to a number in the format of 00.00. Beyond that, you'll have to show us your SQL query. PHP won't translate 3.80 into 99.99 without good reason. Perhaps you've misaligned your fields/values in the query and are trying to insert a larger number that belongs in another field.

Compilr seems to be going in that direction: http://compilr.com/teachers