I had a similar problem and solved it :

I was automatically making the user logged-in by dispatching an action on redux ( placing authentication token on redux state )

and then I was trying to show a message with this.setState({succ_message: "...") in my component.

Component was looking empty with the same error on console : "unmounted component".."memory leak" etc.

After I read Walter's answer up in this thread

I've noticed that in the Routing table of my application , my component's route wasn't valid if user is logged-in :

{!this.props.user.token &&
        <div>
            <Route path="/register/:type" exact component={MyComp} />                                             
        </div>
}

I made the Route visible whether the token exists or not.

I do nested updates with a reduce search:

Example:

The nested variables in state:

state = {
    coords: {
        x: 0,
        y: 0,
        z: 0
    }
}

The function:

handleChange = nestedAttr => event => {
  const { target: { value } } = event;
  const attrs = nestedAttr.split('.');

  let stateVar = this.state[attrs[0]];
  if(attrs.length>1)
    attrs.reduce((a,b,index,arr)=>{
      if(index==arr.length-1)
        a[b] = value;
      else if(a[b]!=null)
        return a[b]
      else
        return a;
    },stateVar);
  else
    stateVar = value;

  this.setState({[attrs[0]]: stateVar})
}

Use:

<input
value={this.state.coords.x}
onChange={this.handleTextChange('coords.x')}
/>

setState(updater[, callback]) is an async function:

https://facebook.github.io/react/docs/react-component.html#setstate

You can execute a function after setState is finishing using the second param callback like:

this.setState({
    someState: obj
}, () => {
    this.afterSetStateFinished();
});

The same can be done with hooks in React functional component:

https://github.com/the-road-to-learn-react/use-state-with-callback#usage

Look at useStateWithCallbackLazy:

import { useStateWithCallbackLazy } from 'use-state-with-callback';

const [count, setCount] = useStateWithCallbackLazy(0);

setCount(count + 1, () => {
   afterSetCountFinished();
});

Yes there is, since setState works in an asynchronous way. That means after calling setState the this.state variable is not immediately changed. so if you want to perform an action immediately after setting state on a state variable and then return a result, a callback will be useful

Consider the example below

....
changeTitle: function changeTitle (event) {
  this.setState({ title: event.target.value });
  this.validateTitle();
},
validateTitle: function validateTitle () {
  if (this.state.title.length === 0) {
    this.setState({ titleError: "Title can't be blank" });
  }
},
....

The above code may not work as expected since the title variable may not have mutated before validation is performed on it. Now you may wonder that we can perform the validation in the render() function itself but it would be better and a cleaner way if we can handle this in the changeTitle function itself since that would make your code more organised and understandable

In this case callback is useful

....
changeTitle: function changeTitle (event) {
  this.setState({ title: event.target.value }, function() {
    this.validateTitle();
  });

},
validateTitle: function validateTitle () {
  if (this.state.title.length === 0) {
    this.setState({ titleError: "Title can't be blank" });
  }
},
....

Another example will be when you want to dispatch and action when the state changed. you will want to do it in a callback and not the render() as it will be called everytime rerendering occurs and hence many such scenarios are possible where you will need callback.

Another case is a API Call

A case may arise when you need to make an API call based on a particular state change, if you do that in the render method, it will be called on every render onState change or because some Prop passed down to the Child Component changed.

In this case you would want to use a setState callback to pass the updated state value to the API call

....
changeTitle: function (event) {
  this.setState({ title: event.target.value }, () => this.APICallFunction());
},
APICallFunction: function () {
  // Call API with the updated value
}
....

Looks like you're accidentally calling the handleButtonChange method in your render method, you probably want to do onClick={() => this.handleButtonChange(false)} instead.

If you don't want to create a lambda in the onClick handler, I think you'll need to have two bound methods, one for each parameter.

In the constructor:

this.handleButtonChangeRetour = this.handleButtonChange.bind(this, true);
this.handleButtonChangeSingle = this.handleButtonChange.bind(this, false);

And in the render method:

<Button href="#" active={!this.state.singleJourney} onClick={this.handleButtonChangeSingle} >Retour</Button>
<Button href="#" active={this.state.singleJourney} onClick={this.handleButtonChangeRetour}>Single Journey</Button>

In case of hooks, you should use useEffect hook.

const [fruit, setFruit] = useState('');

setFruit('Apple');

useEffect(() => {
  console.log('Fruit', fruit);
}, [fruit])

Print service

import { Injectable } from '@angular/core';

@Injectable()
export class PrintingService {

public print(printEl: HTMLElement) {
    let printContainer: HTMLElement = document.querySelector('#print-container');

    if (!printContainer) {
      printContainer = document.createElement('div');
      printContainer.id = 'print-container';
    } 

    printContainer.innerHTML = '';

    let elementCopy = printEl.cloneNode(true);
    printContainer.appendChild(elementCopy);
    document.body.appendChild(printContainer);

    window.print();
  }
}

?omponent that I want to print

@Component({
  selector: 'app-component',
  templateUrl: './component.component.html',
  styleUrls: ['./component.component.css'],
  encapsulation: ViewEncapsulation.None
})
export class MyComponent {
  @ViewChild('printEl') printEl: ElementRef;

  constructor(private printingService: PrintingService) {}

  public print(): void {
    this.printingService.print(this.printEl.nativeElement);
 }

}

Not the best choice, but works.

Please try this - Create a directory 'config' in your lumen setup, and then create app.php file inside this 'config' dir. it will look like this -

<?php return ['app.timezone' => 'America/Los_Angeles'];

Then you can access its value anywhere like this -

$value = config('app.timezone');

If it doesn't work, you can add this lines in routes.php

date_default_timezone_set('America/Los_Angeles');

This worked for me!

A li doesn't have a value. Only form-related elements such as input, textarea and select have values.

Try out this,

My installation is at D:\xampp\htdocs\advanced

\Yii::$app->basePath will give like D:\xampp\htdocs\advanced\backend.

\Yii::$app->request->BaseUrl will give like localhost\advanced\backend\web\

You may store the image using \Yii::$app->basePath and show it using \Yii::$app->request->BaseUrl

Use display: inline-block, though you need to wrap it inside a DIV to keep it from actually displaying inline. Tested in Safari.

<style type="text/css">
    .fieldset-auto-width {
         display: inline-block;
    }
</style>
<div>
  <fieldset class="fieldset-auto-width">
      <legend>Blah</legend>
      ...
  </fieldset>
</div>

Another option is it to have the script set itself as the process group leader, and trap a killpg on your process group on exit.

My personal experience to build website with html, css en javascript is just to stick with plain text editors with ftp support. I am using Espresso or/and Coda on my mac. But Textmate with Cyberduck(ftp client) is also a great combination, imo. For developing in Windows I recommend notepad++.

JSON (= JavaScript Object Notation), is a lightweight and fast mechanism to convert Javascript objects into a string and vice versa.

Since Javascripts objects consists of key/value pairs its very easy to use and access JSON that way.

So if we have an object:

var myObj = {
    foo:   'bar',
    base:  'ball',
    deep:  {
       java:  'script'
    }
};

We can convert that into a string by calling window.JSON.stringify(myObj); with the result of "{"foo":"bar","base":"ball","deep":{"java":"script"}}".

The other way around, we would call window.JSON.parse("a json string like the above");.

JSON.parse() returns a javascript object/array on success.

alert(myObj.deep.java);  // 'script'

window.JSON is not natively available in all browser. Some "older" browser need a little javascript plugin which offers the above mentioned functionality. Check http://www.json.org for further information.

If someone is still looking at this issue, the easiest way to do is

var d = new Date();
d = new Date(d.setHours(d.getHours() + 2));

it will add 2 hours in current time. Value of d = Sat Jan 30 2021 23:41:43 GMT+0500 (Pakistan Standard Time) Value of d after adding 2 hours = Sun Jan 31 2021 01:41:43 GMT+0500 (Pakistan Standard Time)

The Home button is a very dangerous button to override and, because of that, Android will not let you override its behavior the same way you do the BACK button.

Take a look at this discussion.

You will notice that the home button seems to be implemented as a intent invocation, so you'll end up having to add an intent category to your activity. Then, any time the user hits home, your app will show up as an option. You should consider what it is you are looking to accomplish with the home button. If its not to replace the default home screen of the device, I would be wary of overloading the HOME button, but it is possible (per discussion in above thread.)

Best way is,

SELECT to_number(replace(:Str,',','')/100) --into num2 
FROM dual;

This is a jQuery plugin which sets the equal height for all elements on the same row(by checking the element's offset.top). So if your jQuery array contains elements from more than one row(different offset.top), each row will have a separated height, based on element with maximum height on that row.

jQuery.fn.setEqualHeight = function(){

var $elements = [], max_height = [];

jQuery(this).css( 'min-height', 0 );

// GROUP ELEMENTS WHICH ARE ON THE SAME ROW
this.each(function(index, el){ 

    var offset_top = jQuery(el).offset().top;
    var el_height = jQuery(el).css('height');

    if( typeof $elements[offset_top] == "undefined" ){
        $elements[offset_top] = jQuery();
        max_height[offset_top] = 0;
    }

    $elements[offset_top] = $elements[offset_top].add( jQuery(el) );

    if( parseInt(el_height) > parseInt(max_height[offset_top]) )
        max_height[offset_top] = el_height;

});

// CHANGE ELEMENTS HEIGHT
for( var offset_top in $elements ){

    if( jQuery($elements[offset_top]).length > 1 )
        jQuery($elements[offset_top]).css( 'min-height', max_height[offset_top] );

}

};

Pattern is nice but if you want to restrict the input to numbers only with type="text", you can use oninput and a regex as below:

<input type="text" oninput="this.value=this.value.replace(/[^0-9]/g,'');" id="myId"/>

I warks for me :)

In addition to what everyone else has said, I would suggest you analyze your approach in longer terms than just now. It is currently the case that items are unique. It is currently the case that resorting the items would require a new list. It is almost required that the list are currently short. Even though I don't have the domain specifics, it is not much of a stretch to think those requirements could change. If you serialize your list, you are baking in an inflexibility that is not necessary in a more-normalized design. Btw, that does not necessarily mean a full Many:Many relationship. You could just have a single child table with a foreign key to the parent and a character column for the item.

If you still want to go down this road of serializing the list, you might consider storing the list in XML. Some databases such as SQL Server even have an XML data type. The only reason I'd suggest XML is that almost by definition, this list needs to be short. If the list is long, then serializing it in general is an awful approach. If you go the CSV route, you need to account for the values containing the delimiter which means you are compelled to use quoted identifiers. Persuming that the lists are short, it probably will not make much difference whether you use CSV or XML.

Colors are bit-encoded. If You want to change the Text color in C++ language There are many ways. In the console, you can change the properties of output.click this icon of the console and go to properties and change color.

The second way is calling the system colors.

#include <iostream>
#include <stdlib.h>

using namespace std;

int main()
{
    //Changing Font Colors of the System

    system("Color 7C");
    cout << "\t\t\t ****CEB Electricity Bill Calculator****\t\t\t " << endl;
    cout << "\t\t\t  ***                MENU           ***\t\t\t  " <<endl;

    return 0;

}

tried what KennyH write but it didn't solved my problem that appear while trying edit style.xml file in my android app, so I just delete the project from eclipse (not from disk of course !!) and import it back ,solved it for me in that case.

In the nav go View => Layout => Columns:2 (alt+shift+2) and open your file again in the other pane (i.e. click the other pane and use ctrl+p filename.py)

It appears you can also reopen the file using the command File -> New View into File which will open the current file in a new tab

<script>
var card = document.getElementById("cardtype");
if(card.selectedIndex == 0) {
     alert('select one answer');
}
else {
    var selectedText = card.options[card.selectedIndex].text;
    alert(selectedText);
}
</script>

It seems your question is very much older. But I just saw it. I searched(not in google) and found My Answer.

So I am writing its solution so that others may get help from it.

Here is my solution.

Unlike the other answers, you don't need to setup environments.

all you need is just to write php index.php if index.php is your file name.

then you will see that, the file compiled and showing it's desired output.

All the best answers have been already posted (mainly those referencing the link http://jan.kneschke.de/projects/mysql/order-by-rand/).

I want to pinpoint another speed-up possibility - caching. Think of why you need to get random rows. Probably you want display some random post or random ad on a website. If you are getting 100 req/s, is it really needed that each visitor gets random rows? Usually it is completely fine to cache these X random rows for 1 second (or even 10 seconds). It doesn't matter if 100 unique visitors in the same 1 second get the same random posts, because the next second another 100 visitors will get different set of posts.

When using this caching you can use also some of the slower solution for getting the random data as it will be fetched from MySQL only once per second regardless of your req/s.

A slightly other way of iterating through each column of each line of a CSV-file would be

$path = "d:\scratch\export.csv"
$csv = Import-Csv -path $path

foreach($line in $csv)
{ 
    $properties = $line | Get-Member -MemberType Properties
    for($i=0; $i -lt $properties.Count;$i++)
    {
        $column = $properties[$i]
        $columnvalue = $line | Select -ExpandProperty $column.Name

        # doSomething $column.Name $columnvalue 
        # doSomething $i $columnvalue 
    }
} 

so you have the choice: you can use either $column.Name to get the name of the column, or $i to get the number of the column

In a pinch, for those editors that don't support removal of trailing whitespace at all (e.g. the XML editor), you can remove it from all lines by doing a find and replace, enabling regular expressions, then finding "[\t ]+$" and replacing it with "" (blank). There's probably a better regex to do that but it works for me without needing to install AnyEdit.

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

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

1111 1110 << 2
1111 1000

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

0001 1111 >> 3
0000 0011

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

1100 1100 >> 1
1110 0110

And it is conserved over multiple shifts:

1100 1100 >> 2
1111 0011

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

1100 1100 >>> 1
0110 0110

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

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

Actually when you use type="number" your input control populate with up/down arrow to increment/decrement numeric value, so when you update textbox value with those button it will not pass limit of 100, but when you manually give input like 120/130 and so on, it will not validate for max limit, so you have to validate it by code.

You can disable manual input OR you have to write some code on valueChange/textChange/key* event.

Another option is to use apt-file (i.e. apt-file search makeinfo). It may or may not be installed in your distro by default, but it is a great tool for determining what package a file belongs to.

Note (2015): Both question and the answer below apply to the old, deprecated version 2.x of Twitter Bootstrap.

This feature of making and element "sticky" is built into the Twitter's Bootstrap and it is called Affix. All you have to do is to add:

<div data-spy="affix" data-offset-top="121">
  ... your navbar ...
</div>

around your tag and do not forget to load the Bootstrap's JS files as described in the manual. Data attribute offset-top tells how many pixels the page is scrolled (from the top) to fix you menu component. Usually it is just the space to the top of the page.

Note: You will have to take care of the missing space when the menu will be fixed. Fixing means cutting it off out of your page layer and pasting in different layer that does not scroll. I am doing the following:

<div style="height: 77px;">
  <div data-spy="affix" data-offset-top="121">
    <div style="position: relative; height: 0; width: 100%;">
      <div style="position: absolute; top: 0; left: 0;">
        ... my menu ...
      </div>
    </div>
  </div>
</div>

where 77px is the height of my affixed component.

I'd like to add to this the enormously simple, but oh so easily made mistake of writing:

this.state.something = 'changed';

... and then not understanding why it's not rendering and Googling and coming on this page, only to realize that you should have written:

this.setState({something: 'changed'});

React only triggers a re-render if you use setState to update the state.

I created a VB script and run it either from command line or from a Java process. I also tried to catch errors when creating the shortcut so I can have a better error handling.

Set oWS = WScript.CreateObject("WScript.Shell")
shortcutLocation = Wscript.Arguments(0)

'error handle shortcut creation
On Error Resume Next
Set oLink = oWS.CreateShortcut(shortcutLocation)
If Err Then WScript.Quit Err.Number

'error handle setting shortcut target
On Error Resume Next
oLink.TargetPath = Wscript.Arguments(1)
If Err Then WScript.Quit Err.Number

'error handle setting start in property
On Error Resume Next
oLink.WorkingDirectory = Wscript.Arguments(2)
If Err Then WScript.Quit Err.Number

'error handle saving shortcut
On Error Resume Next
oLink.Save
If Err Then WScript.Quit Err.Number

I run the script with the following commmand:

cscript /b script.vbs shortcutFuturePath targetPath startInProperty

It is possible to have it working even without setting the 'Start in' property in some cases.

For Show Current Date and Time on Textview

    /// For Show Date
    String currentDateString = DateFormat.getDateInstance().format(new Date());
    // textView is the TextView view that should display it
    textViewdate.setText(currentDateString);
    /// For Show Time
    String currentTimeString = DateFormat.getTimeInstance().format(new Date());
    // textView is the TextView view that should display it
    textViewtime.setText(currentTimeString);

Check full Code Android – Display the current date and time in an Android Studio Example with source code

The most simple and the correct way is to use Record type Record<string, string>

const myVar : Record<string, string> = {
   key1: 'val1',
   key2: 'val2',
}

You are encoding the form incorrectly. You should only encode the values:

StringBuilder postData = new StringBuilder();
postData.Append("username=" + HttpUtility.UrlEncode(uname) + "&");
postData.Append("password=" + HttpUtility.UrlEncode(pword) + "&");
postData.Append("url_success=" + HttpUtility.UrlEncode(urlSuccess) + "&");
postData.Append("url_failed=" + HttpUtility.UrlEncode(urlFailed));

edit

I was incorrect. According to RFC1866 section 8.2.1 both names and values should be encoded.

But for the given example, the names do not have any characters that needs to be encoded, so in this case my code example is correct ;)

The code in the question is still incorrect as it would encode the equal sign which is the reason to why the web server cannot decode it.

A more proper way would have been:

StringBuilder postData = new StringBuilder();
postData.AppendUrlEncoded("username", uname);
postData.AppendUrlEncoded("password", pword);
postData.AppendUrlEncoded("url_success", urlSuccess);
postData.AppendUrlEncoded("url_failed", urlFailed);

//in an extension class
public static void AppendUrlEncoded(this StringBuilder sb, string name, string value)
{
    if (sb.Length != 0)
        sb.Append("&");
    sb.Append(HttpUtility.UrlEncode(name));
    sb.Append("=");
    sb.Append(HttpUtility.UrlEncode(value));
}

Edit:

The oracle tag was not on the question when this answer was offered, and apparently it doesn't work with oracle, but it does work with at least postgres and mysql

No, just use the value directly:

begin
  if (select count(*) from table) > 0 then
     update table
  end if;
end;

Note there is no need for an "else".

Edited

You can simply do it all within the update statement (ie no if construct):

update table
set ...
where ...
and exists (select 'x' from table where ...)

I'm not sure if you need source code. There is a free online JavaScript formatter at http://www.blackbeltcoder.com/Resources/JSFormatter.aspx.

I hope help you.

/// <summary>
/// Get the integer part of any decimal number passed trough a string 
/// </summary>
/// <param name="decimalNumber">String passed</param>
/// <returns>teh integer part , 0 in case of error</returns>
private int GetIntPart(String decimalNumber)
{
    if(!Decimal.TryParse(decimalNumber, NumberStyles.Any , new CultureInfo("en-US"), out decimal dn))
    {
        MessageBox.Show("String " + decimalNumber + " is not in corret format", "GetIntPart", MessageBoxButtons.OK, MessageBoxIcon.Error);
        return default(int);
    } 

    return Convert.ToInt32(Decimal.Truncate(dn));
}

Use try_files and named location block ('@apachesite'). This will remove unnecessary regex match and if block. More efficient.

location / {
    root /path/to/root/of/static/files;
    try_files $uri $uri/ @apachesite;

    expires max;
    access_log off;
}

location @apachesite {
    proxy_set_header X-Real-IP  $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_pass http://127.0.0.1:8080;
}

Update: The assumption of this config is that there doesn't exist any php script under /path/to/root/of/static/files. This is common in most modern php frameworks. In case your legacy php projects have both php scripts and static files mixed in the same folder, you may have to whitelist all of the file types you want nginx to serve.

I'd prefer to use the .Find method directly on a range object containing the range of cells to be searched. For original poster's code it might look like:

Set cell = ActiveSheet.Columns("B:B").Find( _
    What:=celda, _
    After:=ActiveCell _
    LookIn:=xlFormulas, _
    LookAt:=xlWhole, _
    SearchOrder:=xlByRows, _
    SearchDirection:=xlNext, _
    MatchCase:=False, _
    SearchFormat:=False _
)

If cell Is Nothing Then
    'do something
Else
    'do something else
End If

I'd prefer to use more variables (and be sure to declare them) and let a lot of optional arguments use their default values:

Dim rng as Range
Dim cell as Range
Dim search as String

Set rng = ActiveSheet.Columns("B:B")
search = "String to Find"
Set cell = rng.Find(What:=search, LookIn:=xlFormulas, LookAt:=xlWhole, MatchCase:=False)

If cell Is Nothing Then
    'do something
Else
    'do something else
End If

I kept LookIn:=, LookAt::=, and MatchCase:= to be explicit about what is being matched. The other optional parameters control the order matches are returned in - I'd only specify those if the order is important to my application.

ALTER TABLE `{$installer->getTable('sales/quote_payment')}`
ADD `custom_field_one` VARCHAR( 255 ) NOT NULL,
    ADD `custom_field_two` VARCHAR( 255 ) NOT NULL;

Add backtick i.e. " ` " properly. Write your getTable name and column name between backtick.

They are simply showed like this:

_______________________
|   <<enumeration>>   |
|    DaysOfTheWeek    |
|_____________________|
| Sunday              |
| Monday              |
| Tuesday             |
| ...                 |
|_____________________|

And then just have an association between that and your class.

An update if somebody still reaches this page, wondering why the ie targeting doesnt work. IE 10 and onward no longer support conditional comments. From the MS official website:

Support for conditional comments has been removed in Internet Explorer 10 standards and quirks modes for improved interoperability and compliance with HTML5.

Please see here for more details: http://msdn.microsoft.com/en-us/library/ie/hh801214(v=vs.85).aspx

If you desperately need to target ie, you can use this jquery code to add a ie class to and then use .ie class in your css to target ie browsers.

if ($.browser.msie) {
 $("html").addClass("ie");
}

Update: $.browser is not available after jQuery 1.9. If you upgrade to jQuery above 1.9 or you already use it, you can include jQuery migration script after jQuery so that it adds missing parts: jQuery Migrate Plugin

Alternatively, please check this thread for possible workarounds: browser.msie error after update to jQuery 1.9.1

My answer is basically the same as the others but I think there are two other important things to do:

1. Declare a virtual destructor in your interface or make a protected non-virtual one to avoid undefined behaviours if someone tries to delete an object of type IDemo.

2. Use virtual inheritance to avoid problems whith multiple inheritance. (There is more often multiple inheritance when we use interfaces.)

And like other answers:

• Make a class with pure virtual methods.

• Use the interface by creating another class that overrides those virtual methods.

  class IDemo
  {
      public:
          virtual void OverrideMe() = 0;
          virtual ~IDemo() {}
  }
  

  Or

  class IDemo
  {
      public:
          virtual void OverrideMe() = 0;
      protected:
          ~IDemo() {}
  }
  

  And

  class Child : virtual public IDemo
  {
      public:
          virtual void OverrideMe()
          {
              //do stuff
          }
  }
  

Coding in Perl, I used the rand() function that generates the number at random and wanted only 1, 2, or 3 to be randomly selected. Due to Perl printing out the number one when doing "1 + " ... so I also did a if else statement that if the number generated zero, run the function again, and it works like a charm.

printing out the results will always give a random number of either 1, 2, or 3.

That is just another idea and sure people will say that is newbie stuff but at the same time, I am a newbie but it works. My issue was when printing out my stuff, it kept spitting out that 1 being used to start at 1 and not zero for indexing.

Used these lines:

AccountManager manager = AccountManager.get(this);
Account[] accounts = manager.getAccountsByType("com.google");

the length of array accounts is always 0.

I think the right way to find the internal Java used by the Android Studio is to

1. Open Android Studio
2. Go to File->Other Settings->Default Project Structure/JDK Location:
3. and copy what ever string is specified there

This will not require memorising the folder or searching for java and also these steps wil take of any future changes to the java location by the Android Studio team changes I suppose

I wouldn't put it in the same <p>, since IMHO the two infos are semantically too different. If you must, I'd suggest this:

<p style="text-align:right">
 <span style="float:left">I'll be on the left</span>
 I'll be on the right
</p>

You can also setup multiple domain with nginx, forwarding to multiple node.js processes.

For example to achieve these:

• domain1.com -> to Node.js process running locally http://127.0.0.1:4000
• domain2.com -> to Node.js process running locally http://127.0.0.1:5000

These ports (4000 and 5000) should be used to listen the app requests in your app code.

/etc/nginx/sites-enabled/domain1

server {
    listen 80;
    listen [::]:80;
    server_name domain1.com;
    access_log /var/log/nginx/domain1.access.log;
    location / {
        proxy_pass    http://127.0.0.1:4000/;
    }
}

In /etc/nginx/sites-enabled/domain2

server {
    listen 80;
    listen [::]:80;
    server_name domain2.com;
    access_log /var/log/nginx/domain2.access.log;
    location / {
        proxy_pass    http://127.0.0.1:5000/;
    }
}

Lodash has an utility function for this as well: https://lodash.com/docs#difference

To get only own methods, and exclude inherited ones:

From within the instance:

self.methods - self.class.superclass.instance_methods

From outside:

TestClass.instance_methods - TestClass.superclass.instance_methods

Add it to the class:

class TestClass
  class << self
    def own_methods
      self.instance_methods - self.superclass.instance_methods
    end
  end
end

TestClass.own_methods
=> [:method1, :method2, :method3]

(with ruby 2.6.x)

Actually, a concise rule for Python Scope resolution, from Learning Python, 3rd. Ed.. (These rules are specific to variable names, not attributes. If you reference it without a period, these rules apply.)

LEGB Rule

• Local — Names assigned in any way within a function (def or lambda), and not declared global in that function

• Enclosing-function — Names assigned in the local scope of any and all statically enclosing functions (def or lambda), from inner to outer

• Global (module) — Names assigned at the top-level of a module file, or by executing a global statement in a def within the file

• Built-in (Python) — Names preassigned in the built-in names module: open, range, SyntaxError, etc

So, in the case of

code1
class Foo:
    code2
    def spam():
        code3
        for code4:
            code5
            x()

The for loop does not have its own namespace. In LEGB order, the scopes would be

• L: Local in def spam (in code3, code4, and code5)
• E: Any enclosing functions (if the whole example were in another def)
• G: Were there any x declared globally in the module (in code1)?
• B: Any builtin x in Python.

x will never be found in code2 (even in cases where you might expect it would, see Antti's answer or here).

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

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

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

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

for (int i = 0; i < 5; i++){
    int asciiVal = rand()%26 + 97;
    char asciiChar = asciiVal;
    cout << asciiChar << " and ";
}

I used the following jQuery-based snippet to have a select-element show a div-element that has an id that matches the value of the option-element while hiding the divs that do not match. Not sure that it's the best way, but it is a way.

$('#sectionChooser').change(function(){_x000D_
    var myID = $(this).val();_x000D_
    $('.panel').each(function(){_x000D_
        myID === $(this).attr('id') ? $(this).show() : $(this).hide();_x000D_
    });_x000D_
});

.panel {display: none;}_x000D_
#one {display: block;}

<select id="sectionChooser">_x000D_
    <option value="one" selected>Thing One</option>_x000D_
    <option value="two">Thing Two</option>_x000D_
    <option value="three">Thing Three</option>_x000D_
</select>_x000D_
_x000D_
<div class="panel" id="one">_x000D_
    <p>Thing One</p>_x000D_
</div>_x000D_
<div class="panel" id="two">_x000D_
    <p>Thing Two</p>_x000D_
</div>_x000D_
<div class="panel" id="three">_x000D_
    <p>Thing Three</p>_x000D_
</div>_x000D_
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

The other answers to this question seem to hit it spot on. Now how would you figure this out for yourself without stack overflow? Check out IPython, an interactive Python shell that has tab auto-complete.

> ipython
import Python 2.5 (r25:51908, Nov  6 2007, 16:54:01)
Type "copyright", "credits" or "license" for more information.

IPython 0.8.2.svn.r2750 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object'. ?object also works, ?? prints more.

In [1]: import datetime
In [2]: now=datetime.datetime.now()
In [3]: now.

press tab a few times and you'll be prompted with the members of the "now" object:

now.__add__           now.__gt__            now.__radd__          now.__sub__           now.fromordinal       now.microsecond       now.second            now.toordinal         now.weekday
now.__class__         now.__hash__          now.__reduce__        now.astimezone        now.fromtimestamp     now.min               now.strftime          now.tzinfo            now.year
now.__delattr__       now.__init__          now.__reduce_ex__     now.combine           now.hour              now.minute            now.strptime          now.tzname
now.__doc__           now.__le__            now.__repr__          now.ctime             now.isocalendar       now.month             now.time              now.utcfromtimestamp
now.__eq__            now.__lt__            now.__rsub__          now.date              now.isoformat         now.now               now.timetuple         now.utcnow
now.__ge__            now.__ne__            now.__setattr__       now.day               now.isoweekday        now.replace           now.timetz            now.utcoffset
now.__getattribute__  now.__new__           now.__str__           now.dst               now.max               now.resolution        now.today             now.utctimetuple

and you'll see that now.year is a member of the "now" object.

File.WriteAllText("path", String.Empty);

or

File.CreateText("path").Close();

If you are developing on localhost or a port on localhost such as localhost:8080, in addition to the steps described in the answers above, you also need to ensure that you are not passing a domain value in the Set-Cookie header.
You cannot set the domain to localhost in the Set-Cookie header - that's incorrect - just omit the domain.

See Cookies on localhost with explicit domain and Why won't asp.net create cookies in localhost?

You can create a class based on a Button with specific images for MouseHover and MouseDown like this:

public class AdvancedImageButton : Button {

public Image HoverImage { get; set; }
public Image PlainImage { get; set; }
public Image PressedImage { get; set; }

protected override void OnMouseEnter(System.EventArgs e)
{
  base.OnMouseEnter(e);
  if (HoverImage == null) return;
  if (PlainImage == null) PlainImage = base.Image;
  base.Image = HoverImage;
}

protected override void OnMouseLeave(System.EventArgs e)
{
  base.OnMouseLeave(e);
  if (HoverImage == null) return;
  base.Image = PlainImage;
}

protected override void OnMouseDown(MouseEventArgs e)
{
  base.OnMouseDown(e);
  if (PressedImage == null) return;
  if (PlainImage == null) PlainImage = base.Image;
  base.Image = PressedImage;
}

}

This solution has a small drawback that I am sure can be fixed: when you need for some reason change the Image property, you will also have to change the PlainImage property also.

Some time ago I used JAD (JAva Decompiler) to achieve this - I do not think IntelliJ's decompiler was incorporated with exporting in mind. It is more of a tool to help look through classes where sources are not available.

JAD is still available for download, but I do not think anyone maintains it anymore: http://varaneckas.com/jad/

There were numerous plugins for it, namely Jadclipse (you guessed it, a way to use JAD in Eclipse - see decompiled classes where code is not available :)).

To simply explain the difference,

  response.sendRedirect("login.jsp");

doesn't prepend the contextpath (refers to the application/module in which the servlet is bundled)

but, whereas

 request.getRequestDispathcer("login.jsp").forward(request, response);

will prepend the contextpath of the respective application

Furthermore, Redirect request is used to redirect to resources to different servers or domains. This transfer of control task is delegated to the browser by the container. That is, the redirect sends a header back to the browser / client. This header contains the resource url to be redirected by the browser. Then the browser initiates a new request to the given url.

Forward request is used to forward to resources available within the server from where the call is made. This transfer of control is done by the container internally and browser / client is not involved.

Below is the code that would replace the white space from the file name into given URL and also we can remove the same by using string.empty instead of "~"

  if (!string.IsNullOrEmpty(url))
          {
           string origFileName = Path.GetFileName(url);
           string modiFileName = origFileName.Trim().Replace(" ", "~");
           url = url.Replace(origFileName , modiFileName );
          }
          return url;

Only

export PATH=$(brew --prefix openssl)/bin:$PATH in ~/.bash_profile

has worked for me! Thank you mipadi.

abc(?!def) will match abc not followed by def. So it'll match abce, abc, abck, etc. what if I want neither def nor xyz will it be abc(?!(def)(xyz)) ???

I had the same question and found a solution:

abc(?:(?!def))(?:(?!xyz))

These non-counting groups are combined by "AND", so it this should do the trick. Hope it helps.

Do you mean a C string, as in a char* string, or a C++ std::string object?

Either way, you use the same constructor, as documented in the QT reference:

• Qt QString Reference

For a regular C string, just use the main constructor:

char name[] = "Stack Overflow";
QString qname(name);

For a std::string, you obtain the char* to the buffer and pass that to the QString constructor:

std::string name2("Stack Overflow");
QString qname2(name2.c_str());

alert('The transaction has been approved.\nThank you');

Just add a newline \n character.

alert('The transaction has been approved.\nThank you');
//                                       ^^

Itertools repeat combined with list extend.

from itertools import repeat
l = []
l.extend(repeat(x, 100))

The SweetAlert repo seems to be unmaintained. There's a bunch of Pull Requests without any replies, the last merged pull request was on Nov 9, 2014.

I created SweetAlert2 with HTML support in modal and some other options for customization modal window - width, padding, Esc button behavior, etc.

Swal.fire({
  title: "<i>Title</i>", 
  html: "Testno  sporocilo za objekt: <b>test</b>",  
  confirmButtonText: "V <u>redu</u>", 
});

<script src="https://cdn.jsdelivr.net/npm/sweetalert2@10"></script>

You can try like this

-webkit-transform: rotate(270deg);   
-moz-transform: rotate(270deg);
-ms-transform: rotate(270deg);
-o-transform: rotate(270deg);
transform: rotate(270deg);

As of Jackson 1.6, you can use:

JsonNode node = mapper.valueToTree(map);

or

JsonNode node = mapper.convertValue(object, JsonNode.class);

Source: is there a way to serialize pojo's directly to treemodel?

I had a similar issue, where I needed to effectively replace any file that had changes / conflicts with a different branch.

The solution I found was to use git merge -s ours branch.

Note that the option is -s and not -X. -s denotes the use of ours as a top level merge strategy, -X would be applying the ours option to the recursive merge strategy, which is not what I (or we) want in this case.

Steps, where oldbranch is the branch you want to overwrite with newbranch.

• git checkout newbranch checks out the branch you want to keep
• git merge -s ours oldbranch merges in the old branch, but keeps all of our files.
• git checkout oldbranch checks out the branch that you want to overwrite
• get merge newbranch merges in the new branch, overwriting the old branch

Bootstrap 4

It is used to create a bottom margin of 0 (margin-bottom:0). You can see more of the new spacing utility classes here: https://getbootstrap.com/docs/4.0/utilities/spacing/

Related: How do I use the Spacing Utility Classes on Bootstrap 4

You need to alias the subquery.

SELECT name FROM (SELECT name FROM agentinformation) a  

or to be more explicit

SELECT a.name FROM (SELECT name FROM agentinformation) a  

with open('C:/path/numbers.txt') as f:
    lines = f.read().splitlines()

this will give you a list of values (strings) you had in your file, with newlines stripped.

also, watch your backslashes in windows path names, as those are also escape chars in strings. You can use forward slashes or double backslashes instead.

tl;dr

The Joda-Time project is in maintenance-mode, now supplanted by java.time classes.

• Just use java.time.Instant class.
• No need for:
  • LocalDateTime
  • java.sql.Timestamp
  • Strings

Capture current moment in UTC.

Instant.now()  

To store that moment in database:

myPreparedStatement.setObject( … , Instant.now() )  // Writes an `Instant` to database.

To retrieve that moment from datbase:

myResultSet.getObject( … , Instant.class )  // Instantiates a `Instant`

To adjust the wall-clock time to that of a particular time zone.

instant.atZone( z )  // Instantiates a `ZonedDateTime`

LocalDateTime is the wrong class

Other Answers are correct, but they fail to point out that LocalDateTime is the wrong class for your purpose.

In both java.time and Joda-Time, a LocalDateTime purposely lacks any concept of time zone or offset-from-UTC. As such, it does not represent a moment, and is not a point on the timeline. A LocalDateTime represents a rough idea about potential moments along a range of about 26-27 hours.

Use a LocalDateTime for either when the zone/offset is unknown (not a good situation), or when the zone-offset is indeterminate. For example, “Christmas starts at first moment of December 25, 2018” would be represented as a LocalDateTime.

Use a ZonedDateTime to represent a moment in a particular time zone. For example, Christmas starting in any particular zone such as Pacific/Auckland or America/Montreal would be represented with a ZonedDateTime object.

For a moment always in UTC, use Instant.

Instant instant = Instant.now() ;  // Capture the current moment in UTC.

Apply a time zone. Same moment, same point on the timeline, but viewed with a different wall-clock time.

ZoneId z = ZoneId.of( "Africa/Tunis" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;  // Same moment, different wall-clock time.

So, if I can just convert between LocalDate and LocalDateTime,

No, wrong strategy. If you have a date-only value, and you want a date-time value, you must specify a time-of-day. That time-of-day may not be valid on that date for a particular zone – in which case ZonedDateTime class automatically adjusts the time-of-day as needed.

LocalDate ld = LocalDate.of( 2018 , Month.JANUARY , 23 ) ;
LocalTime lt = LocalTime.of( 14 , 0 ) ;  // 14:00 = 2 PM.
ZonedDateTime zdt = ZonedDateTime.of( ld , lt , z ) ;

If you want the first moment of the day as your time-of-day, let java.time determine that moment. Do not assume the day starts at 00:00:00. Anomalies such as Daylight Saving Time (DST) mean the day may start at another time such as 01:00:00.

ZonedDateTime zdt = ld.atStartOfDay( z ) ;

java.sql.Timestamp is the wrong class

The java.sql.Timestamp is part of the troublesome old date-time classes that are now legacy, supplanted entirely by the java.time classes. That class was used to represent a moment in UTC with a resolution of nanoseconds. That purpose is now served with java.time.Instant.

JDBC 4.2 with getObject/setObject

As of JDBC 4.2 and later, your JDBC driver can directly exchange java.time objects with the database by calling:

• PreparedStatement::setObject
• ResultSet::getObject

For example:

myPreparedStatement.setObject( … , instant ) ;

… and …

Instant instant = myResultSet.getObject( … , Instant.class ) ;

Convert legacy ? modern

If you must interface with old code not yet updated to java.time, convert back and forth using new methods added to the old classes.

Instant instant = myJavaSqlTimestamp.toInstant() ;  // Going from legacy class to modern class.

…and…

java.sql.Timestamp myJavaSqlTimestamp = java.sql.Timestamp.from( instant ) ;  // Going from modern class to legacy class.

About java.time

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

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

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

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android (<26), the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

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

In Java 8 you can use:

LocalDate date = LocalDate.now(); //2020-01-12
date.withDayOfMonth(1); //2020-01-01

It work for me

$request = new Request();
$request->headers->set('content-type', 'application/json');     
$request->initialize(['yourParam' => 2]);

check output

$queryParams = $request->query();
dd($queryParams['yourParam']); // 2

i had the same problem and found another little workaround: i have a provisioner script that is added form the docker build environment. In the script i set the environment variable dependent on a ping check:

Dockerfile:

ADD script.sh /tmp/script.sh
RUN /tmp/script.sh

script.sh:

if ping -c 1 ix.de ; then
    echo "direct internet doing nothing"
else
    echo "proxy environment detected setting proxy"
    export http_proxy=<proxy address>
fi

this is still somewhat crude but worked for me

You could use this snippet -

HttpURLConnection urlConn;
URL mUrl = new URL(url);
urlConn = (HttpURLConnection) mUrl.openConnection();
...
//query is your body
urlConn.addRequestProperty("Content-Type", "application/" + "POST");
if (query != null) {
urlConn.setRequestProperty("Content-Length", Integer.toString(query.length()));
urlConn.getOutputStream().write(query.getBytes("UTF8"));
}

Having had this exception myself, I delved into the JRE source code. It became apparent that the message is rather misleading. It could mean what it says, but it more generally means that the server doesn't have the data it needs to respond to the client in the requested way. This can happen, for example, if certificates are missing from the keystore, or haven't been generated with the an appropriate algoritm. Indeed, given the cipher suites that are installed by default, one would have to go to some lengths to really get this exception because of lack of common cipher suites. In my particular case I'd generated the certificates with the default algorithm of DSA, when what I needed to get the server to work with Firefox was RSA.

You can use replace instead of gsub.

"hello _there_".replace(/_(.*?)_/g, "<div>\$1</div>")

In version 1.1.1:

• Ctrl+H
• Check the regular exp icon .*
• Search: ><
• Replace: >\n<

There is actually a much faster alternative to convert binary numbers to decimal, based on artificial intelligence (linear regression) model:

1. Train an AI algorithm to convert 32-binary number to decimal based.
2. Predict a decimal representation from 32-binary.

See example and time comparison below:

from sklearn.linear_model import LinearRegression
from sklearn.model_selection import train_test_split
import numpy as np

y = np.random.randint(0, 2**32, size=10_000)

def gen_x(y):
    _x = bin(y)[2:]
    n = 32 - len(_x)
    return [int(sym) for sym in '0'*n + _x]

X = np.array([gen_x(x) for x in y])

model = LinearRegression()
model.fit(X, y)

def convert_bin_to_dec_ai(array):
    return model.predict(array)

y_pred = convert_bin_to_dec_ai(X)

Time comparison:

This AI solution converts numbers almost x10 times faster than conventional way!

I used this within a login script to detect 64 bit Windows

if "%ProgramW6432%" == "%ProgramFiles%" goto is64flag

Making this case insensitive wasn't working in asp.net so I just specified each of the letters.

Here's what I had to do to get it working in an asp.net RegularExpressionValidator:

[Hh][Tt][Tt][Pp][Ss]?://(.*)

Notes:

• (?i) and using /whatever/i didn't work probably because javascript hasn't brought in all case sensitive functionality
• Originally had ^ at beginning but it didn't matter, but the (.*) did (Expression didn't work without (.*) but did work without ^)
• Didn't need to escape the // though might be a good idea.

Here's the full RegularExpressionValidator if you need it:

<asp:RegularExpressionValidator ID="revURLHeaderEdit" runat="server" 
    ControlToValidate="txtURLHeaderEdit" 
    ValidationExpression="[Hh][Tt][Tt][Pp][Ss]?://(.*)"
    ErrorMessage="URL should begin with http:// or https://" >
</asp:RegularExpressionValidator>

In python:

>>> 1.0 / 10
0.10000000000000001

Explain how some fractions cannot be represented precisely in binary. Just like some fractions (like 1/3) cannot be represented precisely in base 10.

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

For me, I added the nuget again and the problem was solved

In C++0x you will be able to do it in the same way that you did with an array, but not in the current standard.

With only language support you can use:

int tmp[] = { 10, 20, 30 };
std::vector<int> v( tmp, tmp+3 ); // use some utility to avoid hardcoding the size here

If you can add other libraries you could try boost::assignment:

vector<int> v = list_of(10)(20)(30);

To avoid hardcoding the size of an array:

// option 1, typesafe, not a compile time constant
template <typename T, std::size_t N>
inline std::size_t size_of_array( T (&)[N] ) {
   return N;
}
// option 2, not typesafe, compile time constant
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))

// option 3, typesafe, compile time constant
template <typename T, std::size_t N>
char (&sizeof_array( T(&)[N] ))[N];    // declared, undefined
#define ARRAY_SIZE(x) sizeof(sizeof_array(x))

Regex

   $words = preg_replace('#[0-9 ]*#', '', $words);

Curl is a non-java program and must be provided outside your Java program.

You can easily get much of the functionality using Jakarta Commons Net, unless there is some specific functionality like "resume transfer" you need (which is tedious to code on your own)

Similar to Yada's answer: $request->url() will also work if you are injecting Illuminate\Http\Request

Edit: The difference between fullUrl and url is the fullUrl includes your query parameters

I had a problem where I would get the error when I supplied 0 to an integer param. And found that:

cmd.Parameters.AddWithValue("@Status", 0);

works, but this does not:

cmd.Parameters.Add(new SqlParameter("@Status", 0));

This does almost everything you want:

f = open('data.txt', 'rb')

while True:
    char = f.read(1)
    if not char: break
    print "{:02x}".format(ord(char)),

With data.txt created like this:

f = open('data.txt', 'wb')
f.write("ab\r\ncd")
f.close()

I get the following output:

61 62 0d 0a 63 64

tl;dr -- 1. You are using poor variable names. 2. You are slicing your hex strings incorrectly. 3. Your code is never going to replace any newlines. You may just want to forget about that feature. You do not quite yet understand the difference between a character, its integer code, and the hex string that represents the integer. They are all different: two are strings and one is an integer, and none of them are equal to each other. 4. For some files, you shouldn't remove newlines.

===

1. Your variable names are horrendous.

That's fine if you never want to ask anybody questions. But since every one needs to ask questions, you need to use descriptive variable names that anyone can understand. Your variable names are only slightly better than these:

fname = 'data.txt'
f = open(fname, 'rb')
xxxyxx = f.read()

xxyxxx = len(xxxyxx)
print "Length of file is", xxyxxx, "bytes. "
yxxxxx = 0

while yxxxxx < xxyxxx:
    xyxxxx = hex(ord(xxxyxx[yxxxxx]))
    xyxxxx = xyxxxx[-2:]
    yxxxxx = yxxxxx + 1
    xxxxxy = chr(13) + chr(10)
    xxxxyx = str(xxxxxy)
    xyxxxxx = str(xyxxxx)
    xyxxxxx.replace(xxxxyx, ' ')
    print xyxxxxx

That program runs fine, but it is impossible to understand.

2. The hex() function produces strings of different lengths.

For instance,

print hex(61)
print hex(15)

--output:--
0x3d
0xf

And taking the slice [-2:] for each of those strings gives you:

3d
xf

See how you got the 'x' in the second one? The slice:

[-2:] 

says to go to the end of the string and back up two characters, then grab the rest of the string. Instead of doing that, take the slice starting 3 characters in from the beginning:

[2:]  

3. Your code will never replace any newlines.

Suppose your file has these two consecutive characters:

"\r\n"

Now you read in the first character, "\r", and convert it to an integer, ord("\r"), giving you the integer 13. Now you convert that to a string, hex(13), which gives you the string "0xd", and you slice off the first two characters giving you:

"d"

Next, this line in your code:

bndtx.replace(entx, ' ')

tries to find every occurrence of the string "\r\n" in the string "d" and replace it. There is never going to be any replacement because the replacement string is two characters long and the string "d" is one character long.

The replacement won't work for "\r\n" and "0d" either. But at least now there is a possibility it could work because both strings have two characters. Let's reduce both strings to a common denominator: ascii codes. The ascii code for "\r" is 13, and the ascii code for "\n" is 10. Now what about the string "0d"? The ascii code for the character "0" is 48, and the ascii code for the character "d" is 100. Those strings do not have a single character in common. Even this doesn't work:

 x = '0d' + '0a'
 x.replace("\r\n", " ")
 print x

 --output:--
 '0d0a'

Nor will this:

x = 'd' + 'a'
x.replace("\r\n", " ")
print x

--output:--
da

The bottom line is: converting a character to an integer then to a hex string does not end up giving you the original character--they are just different strings. So if you do this:

char = "a"
code = ord(char)
hex_str = hex(code)

print char.replace(hex_str, " ")

...you can't expect "a" to be replaced by a space. If you examine the output here:

char = "a"
print repr(char)

code = ord(char)
print repr(code)

hex_str = hex(code)
print repr(hex_str)

print repr(
    char.replace(hex_str, " ")
)

--output:--
'a'
97
'0x61'
'a'

You can see that 'a' is a string with one character in it, and '0x61' is a string with 4 characters in it: '0', 'x', '6', and '1', and you can never find a four character string inside a one character string.

4) Removing newlines can corrupt the data.

For some files, you do not want to replace newlines. For instance, if you were reading in a .jpg file, which is a file that contains a bunch of integers representing colors in an image, and some colors in the image happened to be represented by the number 13 followed by the number 10, your code would eliminate those colors from the output.

However, if you are writing a program to read only text files, then replacing newlines is fine. But then, different operating systems use different newlines. You are trying to replace Windows newlines(\r\n), which means your program won't work on files created by a Mac or Linux computer, which use \n for newlines. There are easy ways to solve that, but maybe you don't want to worry about that just yet.

I hope all that's not too confusing.

Here is how the default implementation (ASP.NET Framework or ASP.NET Core) works. It uses a Key Derivation Function with random salt to produce the hash. The salt is included as part of the output of the KDF. Thus, each time you "hash" the same password you will get different hashes. To verify the hash the output is split back to the salt and the rest, and the KDF is run again on the password with the specified salt. If the result matches to the rest of the initial output the hash is verified.

Hashing:

public static string HashPassword(string password)
{
    byte[] salt;
    byte[] buffer2;
    if (password == null)
    {
        throw new ArgumentNullException("password");
    }
    using (Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(password, 0x10, 0x3e8))
    {
        salt = bytes.Salt;
        buffer2 = bytes.GetBytes(0x20);
    }
    byte[] dst = new byte[0x31];
    Buffer.BlockCopy(salt, 0, dst, 1, 0x10);
    Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
    return Convert.ToBase64String(dst);
}

Verifying:

public static bool VerifyHashedPassword(string hashedPassword, string password)
{
    byte[] buffer4;
    if (hashedPassword == null)
    {
        return false;
    }
    if (password == null)
    {
        throw new ArgumentNullException("password");
    }
    byte[] src = Convert.FromBase64String(hashedPassword);
    if ((src.Length != 0x31) || (src[0] != 0))
    {
        return false;
    }
    byte[] dst = new byte[0x10];
    Buffer.BlockCopy(src, 1, dst, 0, 0x10);
    byte[] buffer3 = new byte[0x20];
    Buffer.BlockCopy(src, 0x11, buffer3, 0, 0x20);
    using (Rfc2898DeriveBytes bytes = new Rfc2898DeriveBytes(password, dst, 0x3e8))
    {
        buffer4 = bytes.GetBytes(0x20);
    }
    return ByteArraysEqual(buffer3, buffer4);
}

This is what I needed:

public static byte[] encode(byte[] arr, String fromCharsetName) {
    return encode(arr, Charset.forName(fromCharsetName), Charset.forName("UTF-8"));
}

public static byte[] encode(byte[] arr, String fromCharsetName, String targetCharsetName) {
    return encode(arr, Charset.forName(fromCharsetName), Charset.forName(targetCharsetName));
}

public static byte[] encode(byte[] arr, Charset sourceCharset, Charset targetCharset) {

    ByteBuffer inputBuffer = ByteBuffer.wrap( arr );

    CharBuffer data = sourceCharset.decode(inputBuffer);

    ByteBuffer outputBuffer = targetCharset.encode(data);
    byte[] outputData = outputBuffer.array();

    return outputData;
}

select *  
from dbo.March2010 A 
where A.Date >= Convert(datetime, '2010-04-01' )

In your query, 2010-4-01 is treated as a mathematical expression, so in essence it read

select *  
from dbo.March2010 A 
where A.Date >= 2005; 

(2010 minus 4 minus 1 is 2005 Converting it to a proper datetime, and using single quotes will fix this issue.)

Technically, the parser might allow you to get away with

select *  
from dbo.March2010 A 
where A.Date >= '2010-04-01'

it will do the conversion for you, but in my opinion it is less readable than explicitly converting to a DateTime for the maintenance programmer that will come after you.

Here's how to do this:

(type file1.txt && more +1 file2.txt) > out.txt

private final static String MAPPING = "/foo/*";

@RequestMapping(value = MAPPING, method = RequestMethod.GET)
public @ResponseBody void foo(HttpServletRequest request, HttpServletResponse response) {
    final String mapping = getMapping("foo").replace("*", ""); 
    final String path = (String) request.getAttribute(HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
    final String restOfPath = url.replace(mapping, "");
    System.out.println(restOfPath);
}

private String getMapping(String methodName) {
    Method methods[] = this.getClass().getMethods();
    for (int i = 0; i < methods.length; i++) {
        if (methods[i].getName() == methodName) {
            String mapping[] = methods[i].getAnnotation(RequestMapping.class).value();
            if (mapping.length > 0) {
                return mapping[mapping.length - 1];
            }
        }
    }
    return null;
}

It's not possible with CSS3. There is a proposed CSS4 selector, $, to do just that, which could look like this (Selecting the li element):

ul $li ul.sub { ... }

See the list of CSS4 Selectors here.

As an alternative, with jQuery, a one-liner you could make use of would be this:

$('ul li:has(ul.sub)').addClass('has_sub');

You could then go ahead and style the li.has_sub in your CSS.

The second one causes a new char array to be created, and all chars from the String to be copied to this new char array, so I would guess that the first one is faster (and less memory-hungry).

map() doesn't return a list, it returns a map object.

You need to call list(map) if you want it to be a list again.

Even better,

from itertools import imap
payIntList = list(imap(int, payList))

Won't take up a bunch of memory creating an intermediate object, it will just pass the ints out as it creates them.

Also, you can do if choice.lower() == 'n': so you don't have to do it twice.

Python supports +=: you can do payIntList[i] += 1000 and numElements += 1 if you want.

If you really want to be tricky:

from itertools import count
for numElements in count(1):
    payList.append(raw_input("Enter the pay amount: "))
    if raw_input("Do you wish to continue(y/n)?").lower() == 'n':
         break

and / or

for payInt in payIntList:
    payInt += 1000
    print payInt

Also, four spaces is the standard indent amount in Python.

mysqldump utility can help you, basically with --tab option it's a wrapped for SELECT INTO OUTFILE statement.

Example:

mysqldump -u root -p --tab=/tmp world Country --fields-enclosed-by='"' --fields-terminated-by="," --lines-terminated-by="\n" --no-create-info

This will create csv formatted file /tmp/Country.txt

Use //NOSONAR on the line you get warning if it is something you cannot help your code with. It works!

Share and install userscript with one-click

To make auto-install (but mannually confirm), You can make gist (gist.github.com) with <filename>.user.js filename to get on-click installation when you click on Raw and get this page:

How to do this ?

1. Name your gist <filename>.user.js, write your code and click on "Create".
   

2. In the gist page, click on Raw to get installation page (first screen).
   

3. Check the code and install it.

If you don't have to store more than 24 hours you can just store time, since SQL Server 2008 and later the mapping is

time (SQL Server) <-> TimeSpan(.NET)

No conversions needed if you only need to store 24 hours or less.

Source: http://msdn.microsoft.com/en-us/library/cc716729(v=vs.110).aspx

But, if you want to store more than 24h, you are going to need to store it in ticks, retrieve the data and then convert to TimeSpan. For example

int timeData = yourContext.yourTable.FirstOrDefault();
TimeSpan ts = TimeSpan.FromMilliseconds(timeData);

The best way I have found is to use the initComplete method as it fires after the data has been retrieved and renders the table. NOTE this only fires once though.

$("#tableOfData").DataTable({
        "pageLength": 50,
        "ajax":{
            url: someurl,
            dataType : "json",
            type: "post",
            "data": {data to be sent}
        },
        "initComplete":function( settings, json){
            console.log(json);
            // call your function here
        }
    });

Very similar to Marc, only difference I would make would be to spool to a parameter like so:

WHENEVER SQLERROR EXIT 1
SET LINES 32000
SET TERMOUT OFF ECHO OFF NEWP 0 SPA 0 PAGES 0 FEED OFF HEAD OFF TRIMS ON TAB OFF
SET SERVEROUTPUT ON

spool &1

-- Code

spool off
exit

And then to call the SQLPLUS as

sqlplus -s username/password@sid @tmp.sql /tmp/output.txt

Anything that is not stored on an EBS volume that is mounted to the instance will be lost.

For example, if you mount your EBS volume at /mystuff, then anything not in /mystuff will be lost. If you don't mount an ebs volume and save stuff on it, then I believe everything will be lost.

You can create an AMI from your current machine state, which will contain everything in your ephemeral storage. Then, when you launch a new instance based on that AMI it will contain everything as it is now.

Update: to clarify based on comments by mattgmg1990 and glenn bech:

Note that there is a difference between "stop" and "terminate". If you "stop" an instance that is backed by EBS then the information on the root volume will still be in the same state when you "start" the machine again. According to the documentation, "By default, the root device volume and the other Amazon EBS volumes attached when you launch an Amazon EBS-backed instance are automatically deleted when the instance terminates" but you can modify that via configuration.

The answers above seem partly outdated.

The URL builder on https://developers.facebook.com/docs/plugins/like-button/ worked nicely for me.

You can configure, preview and the get the code/URL in different flavors: HTML5, XFBML, IFRAME, URL

If you're using WordPress, there is now a filter hook to resolve this:

remove_filter('template_redirect', 'redirect_canonical'); 

(Put this in your theme's functions.php)

This tells WordPress to not redirect index.php back to the root page, but to sit where it is. That way, index.html can be assigned to be the default page in .htaccess and can work alongside index.php.

I actually prefer to use the display name for the placeholder text majority of the time. Here is an example of using the DisplayName:

  @Html.TextBoxFor(x => x.FirstName, true, null, new { @class = "form-control", placeholder = Html.DisplayNameFor(x => x.FirstName) })

Use StatefulWidget and setState to update dropdown.

  String _dropDownValue;

  @override
  Widget build(BuildContext context) {
    return DropdownButton(
      hint: _dropDownValue == null
          ? Text('Dropdown')
          : Text(
              _dropDownValue,
              style: TextStyle(color: Colors.blue),
            ),
      isExpanded: true,
      iconSize: 30.0,
      style: TextStyle(color: Colors.blue),
      items: ['One', 'Two', 'Three'].map(
        (val) {
          return DropdownMenuItem<String>(
            value: val,
            child: Text(val),
          );
        },
      ).toList(),
      onChanged: (val) {
        setState(
          () {
            _dropDownValue = val;
          },
        );
      },
    );
  }

initial state of dropdown:

Open dropdown and select value:

Reflect selected value to dropdown:

>> items = [1,2,3,4]
>> Z = [3,4,5,6]

>> print list(set(items)-set(Z))
[1, 2]

drop returns a new array so that is why it choked in the og post; I had a similar requirement to rename some column headers and deleted some rows due to an ill formed csv file converted to Dataframe, so after reading this post I used:

newList = pd.DataFrame(newList)
newList.columns = ['Area', 'Price']
print(newList)
# newList = newList.drop(0)
# newList = newList.drop(len(newList))
newList = newList[1:-1]
print(newList)

and it worked great, as you can see with the two commented out lines above I tried the drop.() method and it work but not as kool and readable as using [n:-n], hope that helps someone, thanks.

Here is it: http://www.htmlcssvqs.com/8ed/examples/chapter-17/webm-video-with-autoplay-loop.html You have to add the tags: autoplay="autoplay" loop="loop" or just "autoplay" and "loop".

You need an scp client. Putty is not one. You can use WinSCP or PSCP. Both are free software.

[[self tabBar] insertSubview:v atIndex:0]; works perfectly for me.

Angular 2 version 2.3 was just released, and it includes native component inheritance. It looks like you can inherit and override whatever you want, except for templates and styles. Some references:

• New features in Angular 2.3

• Component Inheritance in Angular 2

• A Plunkr demonstrating component inheritance

Solution for object and primitive types:

public static final <T> void swap(final T[] arr, final int i, final int j) {
    T tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final boolean[] arr, final int i, final int j) {
    boolean tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final byte[] arr, final int i, final int j) {
    byte tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final short[] arr, final int i, final int j) {
    short tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final int[] arr, final int i, final int j) {
    int tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final long[] arr, final int i, final int j) {
    long tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final char[] arr, final int i, final int j) {
    char tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final float[] arr, final int i, final int j) {
    float tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}
public static final void swap(final double[] arr, final int i, final int j) {
    double tmp = arr[i];
    arr[i] = arr[j];
    arr[j] = tmp;
}

The Spinner should fire an "OnItemSelected" event when something is selected:

spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
    public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
        Object item = parent.getItemAtPosition(pos);
    }
    public void onNothingSelected(AdapterView<?> parent) {
    }
});

check here:

~/Library/MobileDevice/Provisioning Profiles

If you are using latest version of django 2.x or 1.11.x then you have to first create migrations ,

python manage.py makemigrations

After that you just have to run migrate command for syncing database .

python manage.py migrate --run-syncdb

These will sync your database and python models and also second command will print all sql behind it.

In the case of ExpandoObject, the ExpandoObject class actually implements IDictionary<string, object> for its properties, so the solution is as trivial as casting:

IDictionary<string, object> propertyValues = (IDictionary<string, object>)s;

Note that this will not work for general dynamic objects. In these cases you will need to drop down to the DLR via IDynamicMetaObjectProvider.

My Approach with the help of Java8 , Passing coma separated roles will give you true or false

    public static Boolean hasAnyPermission(String permissions){
    Boolean result = false;
    if(permissions != null && !permissions.isEmpty()){
        String[] rolesArray = permissions.split(",");
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        for (String role : rolesArray) {
            boolean hasUserRole = authentication.getAuthorities().stream().anyMatch(r -> r.getAuthority().equals(role));
            if (hasUserRole) {
                result = true;
                break;
            }
        }
    }
    return result;
}

The code points used in icon font tricks are usually Private Use code points, which means that they have no generally defined meaning and should not be used in open information interchange, only by private agreement between interested parties. However, Private Use code points can be represented as any other Unicode value, e.g. in CSS using a notation like \f066, as others have answered. You can even enter the code point as such, if your document is UTF-8 encoded and you know how to type an arbitrary Unicode value by its number in your authoring environment (but of course it would normally be displayed using a symbol for an unknown character).

However, this is not the normal way of using icon fonts. Normally you use a CSS file provided with the font and use constructs like <span class="icon-resize-small">foo</span>. The CSS code will then take care of inserting the symbol at the start of the element, and you don’t need to know the code point number.

<div style="float:left;margin:0 10px 10px 0" markdown="1">
    ![book](/images/book01.jpg)
</div>

The attribute markdown possibility inside Markdown.

By an "anonymous class", I take it you mean anonymous inner class.

An anonymous inner class can come useful when making an instance of an object with certain "extras" such as overriding methods, without having to actually subclass a class.

I tend to use it as a shortcut for attaching an event listener:

button.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        // do something
    }
});

Using this method makes coding a little bit quicker, as I don't need to make an extra class that implements ActionListener -- I can just instantiate an anonymous inner class without actually making a separate class.

I only use this technique for "quick and dirty" tasks where making an entire class feels unnecessary. Having multiple anonymous inner classes that do exactly the same thing should be refactored to an actual class, be it an inner class or a separate class.

If you are adding a loading view (an activity indicator view for instance), make sure you have an object of UIWindow class. If you show an action sheet just before you show your loading view, the keyWindow will be the UIActionSheet and not UIWindow. And since the action sheet will go away, the loading view will go away with it. Or that's what was causing me problems.

UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow];
if (![NSStringFromClass([keyWindow class]) isEqualToString:@"UIWindow"]) {
    // find uiwindow in windows
    NSArray *windows = [UIApplication sharedApplication].windows;
    for (UIWindow *window in windows) {
        if ([NSStringFromClass([window class]) isEqualToString:@"UIWindow"]) {
            keyWindow = window;
            break;
        }
    }
}

I have found the following script is very good at maintaining indexes, you can have this scheduled to run nightly or whatever other timeframe you wish.

http://sqlfool.com/2011/06/index-defrag-script-v4-1/

After poking around it looks like Kelsey is correct.

Just use a comma or something and split it when you want to consume it.

The toString() implementation of java.util.Date does not depend on the way the class is imported. It always returns a nice formatted date.

The toString() you see comes from another class.

Specific import have precedence over wildcard imports.

in this case

import other.Date
import java.util.*

new Date();

refers to other.Date and not java.util.Date.

The odd thing is that

import other.*
import java.util.*

Should give you a compiler error stating that the reference to Date is ambiguous because both other.Date and java.util.Date matches.

if (!$("#element").attr('my_attr')){
  //return false
  //attribute doesn't exists
}

In case anyone else comes across this in a search for an answer...

The test numbers listed in various places no longer work in the Sandbox. PayPal have the same checks in place now so that a card cannot be linked to more than one account.

Go here and get a number generated. Use any expiry date and CVV

https://ppmts.custhelp.com/app/answers/detail/a_id/750/

It's worked every time for me so far...

tl;dr

With JDBC 4.2 or later and java 8 or later:

myPreparedStatement.setObject( … , myLocalDate  )

…and…

myResultSet.getObject( … , LocalDate.class )

Details

The Answer by Vargas is good about mentioning java.time types but refers only to converting to java.sql.Date. No need to convert if your driver is updated.

java.time

The java.time framework is built into Java 8 and later. These classes supplant the old troublesome date-time classes such as java.util.Date, .Calendar, & java.text.SimpleDateFormat. The Joda-Time team also advises migration to java.time.

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

Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP.

LocalDate

In java.time, the java.time.LocalDate class represents a date-only value without time-of-day and without time zone.

If using a JDBC driver compliant with JDBC 4.2 or later spec, no need to use the old java.sql.Date class. You can pass/fetch LocalDate objects directly to/from your database via PreparedStatement::setObject and ResultSet::getObject.

LocalDate localDate = LocalDate.now( ZoneId.of( "America/Montreal" ) );
myPreparedStatement.setObject( 1 , localDate  );

…and…

LocalDate localDate = myResultSet.getObject( 1 , LocalDate.class );

Before JDBC 4.2, convert

If your driver cannot handle the java.time types directly, fall back to converting to java.sql types. But minimize their use, with your business logic using only java.time types.

New methods have been added to the old classes for conversion to/from java.time types. For java.sql.Date see the valueOf and toLocalDate methods.

java.sql.Date sqlDate = java.sql.Date.valueOf( localDate );

…and…

LocalDate localDate = sqlDate.toLocalDate();

Placeholder value

Be wary of using 0000-00-00 as a placeholder value as shown in your Question’s code. Not all databases and other software can handle going back that far in time. I suggest using something like the commonly-used Unix/Posix epoch reference date of 1970, 1970-01-01.

LocalDate EPOCH_DATE = LocalDate.ofEpochDay( 0 ); // 1970-01-01 is day 0 in Epoch counting.

About java.time

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

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

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

You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.

Where to obtain the java.time classes?

• Java SE 8, Java SE 9, Java SE 10, and later
  • Built-in.
  • Part of the standard Java API with a bundled implementation.
  • Java 9 adds some minor features and fixes.
• Java SE 6 and Java SE 7
  • Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
• Android
  • Later versions of Android bundle implementations of the java.time classes.
  • For earlier Android (<26), the ThreeTenABP project adapts ThreeTen-Backport (mentioned above). See How to use ThreeTenABP….

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

You may want to comment out the DL is deprecated, please use Fiddle warning at

C:\Ruby200\lib\ruby\2.0.0\dl.rb

since it’s annoying and you are not the irb/pry or some other gems code owner

It's worth noting also that the yank registers are the same as the macro buffers. In other words, you can simply write out your whole command in your document (including your pasted snippet), then "by to yank it to the b register, and then run it with @b.

The original code works fine for reading and separating the csv file data but you need to change the data type from csv to text.

Probably you use Microsoft SQL Server which support Common Table Expressions (CTE) (see http://msdn.microsoft.com/en-us/library/ms190766.aspx) which are very friendly for query optimization. So I suggest you my favor construction:

WITH GetNumberOfPlans(Id,NumberOfPlans) AS (
    SELECT tableA.Id, COUNT(tableC.Id)
    FROM tableC
        RIGHT OUTER JOIN tableA ON tableC.tableAId = tableA.Id
    GROUP BY tableA.Id
),GetUserInformation(Id,Name,Owner,ImageUrl,
                     CompanyImageUrl,NumberOfUsers) AS (
    SELECT tableA.Id, tableA.Name, tableB.Username AS Owner, tableB.ImageUrl,
        tableB.CompanyImageUrl,COUNT(tableD.UserId),p.NumberOfPlans
    FROM tableA
        INNER JOIN tableB ON tableB.Id = tableA.Owner
        RIGHT OUTER JOIN tableD ON tableD.tableAId = tableA.Id
    GROUP BY tableA.Name, tableB.Username, tableB.ImageUrl, tableB.CompanyImageUrl
)
SELECT u.Id,u.Name,u.Owner,u.ImageUrl,u.CompanyImageUrl
    ,u.NumberOfUsers,p.NumberOfPlans
FROM GetUserInformation AS u
    INNER JOIN GetNumberOfPlans AS p ON p.Id=u.Id

After some experiences with CTE you will be find very easy to write code using CTE and you will be happy with the performance.

It overflows, because the number is negative.

Try this and it will work:

int n = (int) Long.parseLong("ffff8000", 16);

In IDEA 2019.3.3 community on mac ( catalina)

IntelliJ IDEA => preferences


Build,Execution,Deployment=>Compiler=>Annotation Processors:

Check Enable annotation Processing

I can't tell you how this is possible with classes, but functions can delete themselves.

def kill_self(exit_msg = 'killed'):
    global kill_self
    del kill_self
    return exit_msg

And see the output:

 >>> kill_self
<function kill_self at 0x02A2C780>
>>> kill_self()
'killed'
>>> kill_self
Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
    kill_self
NameError: name 'kill_self' is not defined

I don't think that deleting an individual instance of a class without knowing the name of it is possible.

NOTE: If you assign another name to the function, the other name will still reference the old one, but will cause errors once you attempt to run it:

>>> x = kill_self
>>> kill_self()
>>> kill_self
NameError: name 'kill_self' is not defined
>>> x
<function kill_self at 0x...>
>>> x()
NameError: global name 'kill_self' is not defined

Anytime you define an HTML form in your application, you should include a hidden CSRF token field in the form so that the CSRF protection middleware can validate the request. You may use the csrf_field helper to generate the token field:

<form method="POST" action="/profile">
    {{ csrf_field() }}
    ...
</form>

It doesn't work, then Refresh the browser cache and now it might work,

For more details open link :- CSRF Protection in Laravel 5.5

UPDATE:

With Laravel 5.6 using Blades templates, it's pretty easy.

<form method="POST" action="/profile">
    @csrf
    ...
</form>

For more details open link :- CSRF Protection in Laravel 5.6

Since version 1.6 we have new annotation JsonSerialize (in version 1.9.9 for example).

Example:

@JsonSerialize(include=Inclusion.NON_NULL)
public class Test{
...
}

Default value is ALWAYS.

In old versions you can use JsonWriteNullProperties, which is deprecated in new versions. Example:

@JsonWriteNullProperties(false)
public class Test{
    ...
}

There is one important, and useful, distinction between the two.

Because .ForEach uses a for loop to iterate the collection, this is valid (edit: prior to .net 4.5 - the implementation changed and they both throw):

someList.ForEach(x => { if(x.RemoveMe) someList.Remove(x); }); 

whereas foreach uses an enumerator, so this is not valid:

foreach(var item in someList)
  if(item.RemoveMe) someList.Remove(item);

tl;dr: Do NOT copypaste this code into your application!

These examples aren't best practice, they are just to demonstrate the differences between ForEach() and foreach.

Removing items from a list within a for loop can have side effects. The most common one is described in the comments to this question.

Generally, if you are looking to remove multiple items from a list, you would want to separate the determination of which items to remove from the actual removal. It doesn't keep your code compact, but it guarantees that you do not miss any items.

I would rather use plt.clf() after every plt.show() to just clear the current figure instead of closing and reopening it, keeping the window size and giving you a better performance and much better memory usage.

Similarly, you could do plt.cla() to just clear the current axes.

To clear a specific axes, useful when you have multiple axes within one figure, you could do for example:

fig, axes = plt.subplots(nrows=2, ncols=2)

axes[0, 1].clear()

Working Solution that listens to if the user has started to navigate down the list with the keyboard rather than triggering the false navigation each time

https://codepen.io/callam/pen/RgzxZB

Here are the important bits

// search input
const searchInput = document.getElementById('js-search-input');

// Google Maps autocomplete
const autocomplete = new google.maps.places.Autocomplete(searchInput);

// Has user pressed the down key to navigate autocomplete options?
let hasDownBeenPressed = false;

// Listener outside to stop nested loop returning odd results
searchInput.addEventListener('keydown', (e) => {
    if (e.keyCode === 40) {
        hasDownBeenPressed = true;
    }
});

// GoogleMaps API custom eventlistener method
google.maps.event.addDomListener(searchInput, 'keydown', (e) => {

    // Maps API e.stopPropagation();
    e.cancelBubble = true;

    // If enter key, or tab key
    if (e.keyCode === 13 || e.keyCode === 9) {
        // If user isn't navigating using arrows and this hasn't ran yet
        if (!hasDownBeenPressed && !e.hasRanOnce) {
            google.maps.event.trigger(e.target, 'keydown', {
                keyCode: 40,
                hasRanOnce: true,
            });
        }
    }
});

 // Clear the input on focus, reset hasDownBeenPressed
searchInput.addEventListener('focus', () => {
    hasDownBeenPressed = false;
    searchInput.value = '';
});

// place_changed GoogleMaps listener when we do submit
google.maps.event.addListener(autocomplete, 'place_changed', function() {

    // Get the place info from the autocomplete Api
    const place = autocomplete.getPlace();

    //If we can find the place lets go to it
    if (typeof place.address_components !== 'undefined') {          
        // reset hasDownBeenPressed in case they don't unfocus
        hasDownBeenPressed = false;
    }

});

This issue has to do with granting the necessary authorization to the user account the application runs on. To read a similar situation and a detailed response for the correct solution, as documented by Microsoft, feel free to visit this post: http://rambletech.wordpress.com/2011/10/17/requested-registry-access-is-not-allowed/

paste below two jar in your /WEB-INF/lib folder and then go to project properties and go to add jar and select these two jars then click Ok, Ok

standard.jar, jstl-1.0.2.jar

I had a similar problem for my DNA assignment and I used bgporter's advice to answer it. Here is my function which creates a new string...

def insert_sequence(str1, str2, int):
    """ (str1, str2, int) -> str

    Return the DNA sequence obtained by inserting the 
    second DNA sequence into the first DNA sequence 
    at the given index.

    >>> insert_sequence('CCGG', 'AT', 2)
    CCATGG
    >>> insert_sequence('CCGG', 'AT', 3)
    CCGATG
    >>> insert_sequence('CCGG', 'AT', 4)
    CCGGAT
    >>> insert_sequence('CCGG', 'AT', 0)
    ATCCGG
    >>> insert_sequence('CCGGAATTGG', 'AT', 6)
    CCGGAAATTTGG

    """

    str1_split1 = str1[:int]
    str1_split2 = str1[int:]
    new_string = str1_split1 + str2 + str1_split2
    return new_string

I just wanted to expand on the accepted answer with support for Internet Explorer (most modern versions, anyways), and to tidy up the code using jQuery:

$(document).ready(function() {
    saveFile("Example.txt", "data:attachment/text", "Hello, world.");
});

function saveFile (name, type, data) {
    if (data !== null && navigator.msSaveBlob)
        return navigator.msSaveBlob(new Blob([data], { type: type }), name);
    var a = $("<a style='display: none;'/>");
    var url = window.URL.createObjectURL(new Blob([data], {type: type}));
    a.attr("href", url);
    a.attr("download", name);
    $("body").append(a);
    a[0].click();
    window.URL.revokeObjectURL(url);
    a.remove();
}

Here is an example Fiddle. Godspeed.

I appreciate this wasn't the OP's issue, but I ran into this issue recently with a different cause. For reference, I was using the Liquibase Maven plugin (liquibase-maven-plugin:3.1.1) with SQL Server.

Anyway, I'd erroneously copied and pasted a SQL Server "use" statement into one of my scripts that switches databases, so liquibase was running and updating the DATABASECHANGELOGLOCK, acquiring the lock in the correct database, but then switching databases to apply the changes. Not only could I NOT see my changes or liquibase audit in the correct database, but of course, when I ran liquibase again, it couldn't acquire the lock, as the lock had been released in the "wrong" database, and so was still locked in the "correct" database. I'd have expected liquibase to check the lock was still applied before releasing it, and maybe that is a bug in liquibase (I haven't checked yet), but it may well be addressed in later versions! That said, I suppose it could be considered a feature!

Quite a bit of a schoolboy error, I know, but I raise it here in case anyone runs into the same problem!

there is no command directly to draw Triangle. For Drawing of triangle we have to use the concept of lines here.

i.e, g.drawLines(Coordinates of points)

You can, but be aware of the return types with jQuery functions. jQuery won't always use the exact same JavaScript object type, although generally they will return subclasses of what you would expect to be returned from a similar JavaScript function.

Since Google updates sometimes the name of fixed object properties, the best practice is to use GMaps V3 methods to get coordinates event.overlay.getPath().getArray() and to get lat latlng.lat() and lng latlng.lng().

So, I just wanted to improve this answer a bit exemplifying with polygon and POSTGIS insert case scenario:

google.maps.event.addListener(drawingManager, 'overlaycomplete', function(event) {
    var str_input ='POLYGON((';
    if (event.type == google.maps.drawing.OverlayType.POLYGON) {
      console.log('polygon path array', event.overlay.getPath().getArray());
      $.each(event.overlay.getPath().getArray(), function(key, latlng){
        var lat = latlng.lat();
        var lon = latlng.lng();
        console.log(lat, lon); 
        str_input += lat +' '+ lon +',';
      });
    }
    str_input = str_input.substr(0,str_input.length-1) + '))';
    console.log('the str_input will be:', str_input);

    // YOU CAN THEN USE THE str_inputs AS IN THIS EXAMPLE OF POSTGIS POLYGON INSERT
    // INSERT INTO your_table (the_geom, name) VALUES (ST_GeomFromText(str_input, 4326), 'Test')

  });

Drezus - you solved it for me. Thanks so much.

In your AccountController, login should look like this:

    [AllowAnonymous]
    public ActionResult Login(string returnUrl)
    {
        ViewBag.ReturnUrl = returnUrl;
        return View();
    }

It could be some other line as well. PHP is not always that exact.

Probably you are just missing a semicolon on previous line.

How to reproduce this error, put this in a file called a.php:

<?php
  $a = 5
  $b = 7;        // Error happens here.
  print $b;
?>

Run it:

eric@dev ~ $ php a.php

PHP Parse error:  syntax error, unexpected T_VARIABLE in
/home/el/code/a.php on line 3

Explanation:

The PHP parser converts your program to a series of tokens. A T_VARIABLE is a Token of type VARIABLE. When the parser processes tokens, it tries to make sense of them, and throws errors if it receives a variable where none is allowed.

In the simple case above with variable $b, the parser tried to process this:

$a = 5 $b = 7;

The PHP parser looks at the $b after the 5 and says "that is unexpected".

var result = input.GroupBy(x=>x.F1,(key,g)=>g.OrderBy(e=>e.F2).First());

I do not have a USB serial device, but there must be a way to find the real ports using the HAL libraries directly:

====================================================================
#! /usr/bin/env bash
#
# Uses HAL to find existing serial hardware
#

for sport in $(hal-find-by-capability --capability serial) ; do
  hal-get-property --udi "${sport}" --key serial.device
done

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

The posted python-dbus code nor this sh script lists the bluetooth /dev/rfcomm* devices, so it is not the best solution.

Note that on other unix platforms, the serial ports are not named ttyS? and even in linux, some serial cards allow you to name the devices. Assuming a pattern in the serial devices names is wrong.

Use spread Operator to get your desired result

var arrayFromSet = [...set];

You can use following syntax, For more information see this question and answers : Add a column with a default value to an existing table in SQL Server

Syntax :

ALTER TABLE {TABLENAME} 
ADD {COLUMNNAME} {TYPE} {NULL|NOT NULL} 
CONSTRAINT {CONSTRAINT_NAME} DEFAULT {DEFAULT_VALUE}
WITH VALUES

Example :

ALTER TABLE SomeTable
ADD SomeCol Bit NULL --Or NOT NULL.
CONSTRAINT D_SomeTable_SomeCol --When Omitted a Default-Constraint Name is 
autogenerated.
DEFAULT (0)--Optional Default-Constraint.
WITH VALUES --Add if Column is Nullable and you want the Default Value for Existing Records.

Another way :

Right click on the table and click on Design,then click on column that you want to set default value.

Then in bottom of page add a default value or binding : something like '1' for string or 1 for int.

Have a look at Determine and count unique values of an array.

Or, to count the number of occurrences of 5, simply do

sum(your_matrix == 5)

Another solution is to Move the aggregate fuction to Scalar User Defined Function

Create Your Function:

CREATE FUNCTION getTotalSalesByProduct(@ProductName VARCHAR(500))
RETURNS INT
AS
BEGIN

DECLARE @TotalAmount INT

SET @TotalAmount = (select SUM(SaleAmount) FROM Sales where Product=@ProductName)

RETURN @TotalAmount

END

Use Function in Where Clause

SELECT ProductName, SUM(SaleAmount) AS TotalSales
FROM Sales
WHERE dbo.getTotalSalesByProduct(ProductName)  > 1000
GROUP BY Product

References:

1. 2.

Hope helps someone.

Example for trim leading and trailing spaces following jon-hanson's suggestion to use boost (only removes trailing and pending spaces):

#include <boost/algorithm/string/trim.hpp>

std::string str = "   t e s t    ";

boost::algorithm::trim ( str );

Results in "t e s t"

There is also

• trim_left results in "t e s t "
• trim_right results in " t e s t"

With no intentions to critique John Hartsock, just in case the number of delimiters may vary for anyone using the given code, I would formally suggest to use this instead...

var mystr = '0000000020C90037:TEMP:data';
var myarr = mystr.split(":");
var arrlen = myarr.length;
var myvar = myarr[arrlen-2] + ":" + myarr[arrlen-1];

df['year_month']=df.datetime_column.apply(lambda x: str(x)[:7])

This worked fine for me, didn't think pandas would interpret the resultant string date as date, but when i did the plot, it knew very well my agenda and the string year_month where ordered properly... gotta love pandas!

If you have more than one version of java, it may interfere with your program.

I suggest you download JCreator.

When you do, click configure, options, and JDK Profiles. Delete the old versions of Java from the list. Then click the play button. Your program should appear.

If it doesn't, press ctrl+alt+O and then press the play button again.

Simple and easy :)

1. Make 2 xml layouts ( i.e Portrait and Landscape )

2. At java file, write:

   private int intOrientation;
   

   at onCreate method and before setContentView write:

   intOrientation = getResources().getConfiguration().orientation;
   if (intOrientation == Configuration.ORIENTATION_PORTRAIT)
       setContentView(R.layout.activity_main);
   else
       setContentView(R.layout.layout_land);   // I tested it and it works fine.
   

You are getting this problem because you have not install MySql. Before install mysql2 gem. Install MySQL. After that mysql2 gem will install.

If you use Java and spring MVC you just need to add the following annotation to your method returning your page :

@CrossOrigin(origins = "*")

"*" is to allow your page to be accessible from anywhere. See https://developer.mozilla.org/fr/docs/Web/HTTP/Headers/Access-Control-Allow-Origin for more details about that.

If you just want to see all the columns you can do something of this sort as a quick fix

cols = data_all2.columns

now cols will behave as a iterative variable that can be indexed. for example

cols[11:20]

There are correct solutions in the comments, but to summarize them into a single answer:

You have to use DECIMAL(6,4).

Then you can have 6 total number of digits, 2 before and 4 after the decimal point (the scale). At least according to this.

ES2017 Way

// convert file to a base64 url
const readURL = file => {
    return new Promise((res, rej) => {
        const reader = new FileReader();
        reader.onload = e => res(e.target.result);
        reader.onerror = e => rej(e);
        reader.readAsDataURL(file);
    });
};

// for demo
const fileInput = document.createElement('input');
fileInput.type = 'file';
const img = document.createElement('img');
img.attributeStyleMap.set('max-width', '320px');
document.body.appendChild(fileInput);
document.body.appendChild(img);

const preview = async event => {
    const file = event.target.files[0];
    const url = await readURL(file);
    img.src = url;
};

fileInput.addEventListener('change', preview);

Running as administrator then following other comments fixed the problem for me :)

If you want to continue to use passwords and not use key exchange then you can accomplish this with 'expect' like so:

#!/usr/bin/expect -f
spawn ssh user@hostname
expect "password:"
sleep 1
send "<your password>\r"
command1
command2
commandN

Handy one-liners

for D in *; do echo "$D"; done
for D in *; do find "$D" -type d; done ### Option A

find * -type d ### Option B

Option A is correct for folders with spaces in between. Also, generally faster since it doesn't print each word in a folder name as a separate entity.

# Option A
$ time for D in ./big_dir/*; do find "$D" -type d > /dev/null; done
real    0m0.327s
user    0m0.084s
sys     0m0.236s

# Option B
$ time for D in `find ./big_dir/* -type d`; do echo "$D" > /dev/null; done
real    0m0.787s
user    0m0.484s
sys     0m0.308s

In short, services set to Automatic will start during the boot process, while services set to start as Delayed will start shortly after boot.

Starting your service Delayed improves the boot performance of your server and has security benefits which are outlined in the article Adriano linked to in the comments.

Update: "shortly after boot" is actually 2 minutes after the last "automatic" service has started, by default. This can be configured by a registry key, according to Windows Internals and other sources (3,4).

The registry keys of interest (At least in some versions of windows) are:

• HKLM\SYSTEM\CurrentControlSet\services\<service name>\DelayedAutostart will have the value 1 if delayed, 0 if not.
• HKLM\SYSTEM\CurrentControlSet\services\AutoStartDelay or HKLM\SYSTEM\CurrentControlSet\Control\AutoStartDelay (on Windows 10): decimal number of seconds to wait, may need to create this one. Applies globally to all Delayed services.

see HELP FOR and see the examples

or quick try this

 for /F %%a in ("AAA BBB CCC DDD EEE FFF") do echo %%c

If the performance hit of the default constructor isn't an issue, the please, for the love of god, go with the more readable version.

:)

You can shorten JSprangs solution a bit by using a method group instead:

string s1 = "1;2;3;4;5;6;7;8;9;10;11;12";
int[] ints = s1.Split(';').Select(int.Parse).ToArray();

Note: if you were on Branch1, you will with Git 2.0 (Q2 2014) be able to type:

git checkout Branch2
git rebase -

See commit 4f40740 by Brian Gesiak modocache:

rebase: allow "-" short-hand for the previous branch

Teach rebase the same shorthand as checkout and merge to name the branch to rebase the current branch on; that is, that "-" means "the branch we were previously on".

For completeness sake, you might also want to bind it to DOMContentLoaded, which is now widely supported

document.addEventListener("DOMContentLoaded", function(event){
  // your code here
});

More info: https://developer.mozilla.org/en-US/docs/Web/Events/DOMContentLoaded

I had a similar problem once. I solved it by making a custom ImageView.

public class CustomImageView extends ImageView

Then override the onMeasure method of the imageview. I did something like this I believe:

    @Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    try {
        Drawable drawable = getDrawable();

        if (drawable == null) {
            setMeasuredDimension(0, 0);
        } else {
            float imageSideRatio = (float)drawable.getIntrinsicWidth() / (float)drawable.getIntrinsicHeight();
            float viewSideRatio = (float)MeasureSpec.getSize(widthMeasureSpec) / (float)MeasureSpec.getSize(heightMeasureSpec);
            if (imageSideRatio >= viewSideRatio) {
                // Image is wider than the display (ratio)
                int width = MeasureSpec.getSize(widthMeasureSpec);
                int height = (int)(width / imageSideRatio);
                setMeasuredDimension(width, height);
            } else {
                // Image is taller than the display (ratio)
                int height = MeasureSpec.getSize(heightMeasureSpec);
                int width = (int)(height * imageSideRatio);
                setMeasuredDimension(width, height);
            }
        }
    } catch (Exception e) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }

This will stretch the image to fit the screen while maintaining the aspect ratio.

The compile() method is always called at some point; it's the only way to create a Pattern object. So the question is really, why should you call it explicitly? One reason is that you need a reference to the Matcher object so you can use its methods, like group(int) to retrieve the contents of capturing groups. The only way to get ahold of the Matcher object is through the Pattern object's matcher() method, and the only way to get ahold of the Pattern object is through the compile() method. Then there's the find() method which, unlike matches(), is not duplicated in the String or Pattern classes.

The other reason is to avoid creating the same Pattern object over and over. Every time you use one of the regex-powered methods in String (or the static matches() method in Pattern), it creates a new Pattern and a new Matcher. So this code snippet:

for (String s : myStringList) {
    if ( s.matches("\\d+") ) {
        doSomething();
    }
}

...is exactly equivalent to this:

for (String s : myStringList) {
    if ( Pattern.compile("\\d+").matcher(s).matches() ) {
        doSomething();
    }
}

Obviously, that's doing a lot of unnecessary work. In fact, it can easily take longer to compile the regex and instantiate the Pattern object, than it does to perform an actual match. So it usually makes sense to pull that step out of the loop. You can create the Matcher ahead of time as well, though they're not nearly so expensive:

Pattern p = Pattern.compile("\\d+");
Matcher m = p.matcher("");
for (String s : myStringList) {
    if ( m.reset(s).matches() ) {
        doSomething();
    }
}

If you're familiar with .NET regexes, you may be wondering if Java's compile() method is related to .NET's RegexOptions.Compiled modifier; the answer is no. Java's Pattern.compile() method is merely equivalent to .NET's Regex constructor. When you specify the Compiled option:

Regex r = new Regex(@"\d+", RegexOptions.Compiled); 

...it compiles the regex directly to CIL byte code, allowing it to perform much faster, but at a significant cost in up-front processing and memory use--think of it as steroids for regexes. Java has no equivalent; there's no difference between a Pattern that's created behind the scenes by String#matches(String) and one you create explicitly with Pattern#compile(String).

(EDIT: I originally said that all .NET Regex objects are cached, which is incorrect. Since .NET 2.0, automatic caching occurs only with static methods like Regex.Matches(), not when you call a Regex constructor directly. ref)

Based on @AmNaN suggestion (more details):

class ApplicationController < ActionController::Base

 def current_controller?(names)
  names.include?(params[:controller]) unless params[:controller].blank? || false
 end

 helper_method :current_controller?

end

Now you can call it e.g. in a navigation layout for marking list items as active:

<ul class="nav nav-tabs">
  <li role="presentation" class="<%= current_controller?('items') ? 'active' : '' %>">
    <%= link_to user_items_path(current_user) do %>
      <i class="fa fa-cloud-upload"></i>
    <% end %>
  </li>
  <li role="presentation" class="<%= current_controller?('users') ? 'active' : '' %>">
    <%= link_to users_path do %>
      <i class="fa fa-newspaper-o"></i>
    <% end %>
  </li>
  <li role="presentation" class="<%= current_controller?('alerts') ? 'active' : '' %>">
    <%= link_to alerts_path do %>
      <i class="fa fa-bell-o"></i>
    <% end %>
  </li>
</ul>

For the users and alerts routes, current_page? would be enough:

 current_page?(users_path)
 current_page?(alerts_path)

But with nested routes and request for all actions of a controller (comparable with items), current_controller? was the better method for me:

 resources :users do 
  resources :items
 end

The first menu entry is that way active for the following routes:

   /users/x/items        #index
   /users/x/items/x      #show
   /users/x/items/new    #new
   /users/x/items/x/edit #edit

No, it will not be evaluated. And this is very useful. For example, if you need to test whether a String is not null or empty, you can write:

if (str != null && !str.isEmpty()) {
  doSomethingWith(str.charAt(0));
}

or, the other way around

if (str == null || str.isEmpty()) {
  complainAboutUnusableString();
} else {
  doSomethingWith(str.charAt(0));
}

If we didn't have 'short-circuits' in Java, we'd receive a lot of NullPointerExceptions in the above lines of code.

@Override
protected Dialog onCreateDialog(int id)
{
    switch(id)
    {
    case 0:
    {               
        return new AlertDialog.Builder(this)
        .setMessage("text here")
        .setPositiveButton("OK", new DialogInterface.OnClickListener() 
        {                   
            @Override
            public void onClick(DialogInterface arg0, int arg1) 
            {
                try
                {

                }//end try
                catch(Exception e)
                {
                    Toast.makeText(getBaseContext(),  "", Toast.LENGTH_LONG).show();
                }//end catch
            }//end onClick()
        }).create();                
    }//end case
  }//end switch
    return null;
}//end onCreateDialog

Take a look at Blockspring - you do need to install the plugin, but then it's just another function you call like this:

=BLOCKSPRING("twodee-array-reduce","input_array",D5:F7)

The source code and other details are here. If this doesn't suit and/or you want to build off my solution, you can fork my function (Python) or use another supported scripting language (Ruby, R, JS, etc...).

Change return false; to return true; in longClickListener

You long click the button, if it returns true then it does the work. If it returns false then it does it's work and also calls the short click and then the onClick also works.

You can use Lodash

const _ = require('lodash');

let firstObject = {'email' : '[email protected]};
let secondObject = { 'name' : { 'first':message.firstName } };
_.merge(firstObject, secondObject)

A new paper has been released with several tests against reCAPTCHA:

https://www.blackhat.com/docs/asia-16/materials/asia-16-Sivakorn-Im-Not-a-Human-Breaking-the-Google-reCAPTCHA-wp.pdf

Some highlights:

• By keeping a cookie active for +9 days (by browsing sites with Google resources), you can then pass reCAPTCHA by only clicking the checkbox;
• There are no restrictions based on requests per IP;
• The browser's user agent must be real, and Google run tests against your environment to ensure it matches the user agent;
• Google tests if the browser can render a Canvas;
• Screen resolution and mouse events don't affect the results;

Google has already fixed the cookie vulnerability and is probably restricting some behaviors based on IPs.

Another interesting finding is that Google runs a VM in JavaScript that obfuscates much of reCAPTCHA code and behavior. This VM is known as botguard and is used to protect other services besides reCAPTCHA:

https://github.com/neuroradiology/InsideReCaptcha

UPDATE 2017

A recent paper (from August) was published on WOOT 2017 achieving 85% accuracy in solving noCAPTCHA reCAPTCHA audio challenges:

http://uncaptcha.cs.umd.edu/papers/uncaptcha_woot17.pdf

UPDATE 2018

Google is introducing reCAPTCHA v3, which looks like a "human score prediction engine" that is calibrated per website. It can be installed into different pages of a website (working like a Google Analytics script) to help reCAPTCHA and the website owner to understand the behaviour of humans vs. bots before filling a reCAPTCHA.

https://www.google.com/recaptcha/intro/v3beta.html

tldr: there is simply no way to do that; if you are trying to do that, you get LocalDateTime wrong.

The reason is that LocalDateTime does not record Time Zone after instances are created. You cannot convert a date time without time zone to another date time based on a specific time zone.

As a matter of fact, LocalDateTime.now() should never be called in production code unless your purpose is getting random results. When you construct a LocalDateTime instance like that, this instance contains date time ONLY based on current server's time zone, which means this piece of code will generate different result if it is running a server with a different time zone config.

LocalDateTime can simplify date calculating. If you want a real universally usable data time, use ZonedDateTime or OffsetDateTime: https://docs.oracle.com/javase/8/docs/api/java/time/OffsetDateTime.html.

Try:

header("Content-type: text/csv");
header("Content-Disposition: attachment; filename=file.csv");
header("Pragma: no-cache");
header("Expires: 0");

echo "record1,record2,record3\n";
die;

etc

Edit: Here's a snippet of code I use to optionally encode CSV fields:

function maybeEncodeCSVField($string) {
    if(strpos($string, ',') !== false || strpos($string, '"') !== false || strpos($string, "\n") !== false) {
        $string = '"' . str_replace('"', '""', $string) . '"';
    }
    return $string;
}

You're setting it to not be able to scale (maximum-scale = initial-scale), so it can't scale up when you rotate to landscape mode. Set maximum-scale=1.6 and it will scale properly to fit landscape mode.

As grep -E '|pattern' has already been suggested, just wanted to clarify it's possible to highlight the whole line too.

For example tail -f /somelog | grep --color -E '| \[2].*':

A simpler version of your code would be:

dict(zip(names, d.values()))

If you want to keep the same structure, you can change it to:

vlst = list(d.values())
{names[i]: vlst[i] for i in range(len(names))}

(You can just as easily put list(d.values()) inside the comprehension instead of vlst; it's just wasteful to do so since it would be re-generating the list every time).

If the array is a global, static, or automatic variable (int array[10];), then sizeof(array)/sizeof(array[0]) works.

If it is a dynamically allocated array (int* array = malloc(sizeof(int)*10);) or passed as a function argument (void f(int array[])), then you cannot find its size at run-time. You will have to store the size somewhere.
Note that sizeof(array)/sizeof(array[0]) compiles just fine even for the second case, but it will silently produce the wrong result.

I found out that it also happens if you uninstalled some packages from your react-native project and there is still packages in your build gradle dependencies in the bottom of page like:

{
 project(':react-native-sound-player')
}

The comma operator evaluates all its operands and yields the value of the last one. So basically whichever condition you write first, it will be disregarded, and the second one will be significant only.

for (i = 0; j >= 0, i <= 5; i++)

is thus equivalent with

for (i = 0; i <= 5; i++)

which may or may not be what the author of the code intended, depending on his intents - I hope this is not production code, because if the programmer having written this wanted to express an AND relation between the conditions, then this is incorrect and the && operator should have been used instead.

You never mention what object you are inspecting, and since you are rejecting ones that reference a given object, I will assume you mean a static one.

using System.Reflection;
public object GetPropValue(string prop)
{
    int splitPoint = prop.LastIndexOf('.');
    Type type = Assembly.GetEntryAssembly().GetType(prop.Substring(0, splitPoint));
    object obj = null;
    return type.GetProperty(prop.Substring(splitPoint + 1)).GetValue(obj, null);
}

Note that I marked the object that is being inspected with the local variable obj. null means static, otherwise set it to what you want. Also note that the GetEntryAssembly() is one of a few available methods to get the "running" assembly, you may want to play around with it if you are having a hard time loading the type.

Another variant is

Assert.assertThat(actual, new Matches(expectedRegex));

Moreover in org.mockito.internal.matchers there are some other interesting matchers, like StartWith, Contains etc.

if your list looks like this: [1,2,3] you can do:

lst = [1,2,3]
df = pd.DataFrame([lst])
df.columns =['col1','col2','col3']
df

to get this:

    col1    col2    col3
0   1       2       3

alternatively you can create a column as follows:

import numpy as np
df = pd.DataFrame(np.array([lst]).T)
df.columns =['col1']
df

to get this:

  col1
0   1
1   2
2   3