Alternatively, if using Sass, one can "extend" FA icons to display them:

.mytextwithicon:before {
  @extend .fas, .fa-angle-double-right;

  @extend .mr-2; // using bootstrap to add a small gap
                 // between the icon and the text.
}

Checkout this out. It takes care of daylight saving , leap year as it used iOS calendar to calculate.You can change the string and conditions to includes minutes with hours and days.

+(NSString*)remaningTime:(NSDate*)startDate endDate:(NSDate*)endDate
{
    NSDateComponents *components;
    NSInteger days;
    NSInteger hour;
    NSInteger minutes;
    NSString *durationString;

    components = [[NSCalendar currentCalendar] components: NSCalendarUnitDay|NSCalendarUnitHour|NSCalendarUnitMinute fromDate: startDate toDate: endDate options: 0];

    days = [components day];
    hour = [components hour];
    minutes = [components minute];

    if(days>0)
    {
        if(days>1)
            durationString=[NSString stringWithFormat:@"%d days",days];
        else
            durationString=[NSString stringWithFormat:@"%d day",days];
        return durationString;
    }
    if(hour>0)
    {        
        if(hour>1)
            durationString=[NSString stringWithFormat:@"%d hours",hour];
        else
            durationString=[NSString stringWithFormat:@"%d hour",hour];
        return durationString;
    }
    if(minutes>0)
    {
        if(minutes>1)
            durationString = [NSString stringWithFormat:@"%d minutes",minutes];
        else
            durationString = [NSString stringWithFormat:@"%d minute",minutes];

        return durationString;
    }
    return @""; 
}

string urlParameters = "param1=value1&param2=value2";
string _endPointName = "your url post api";

var httpWebRequest = (HttpWebRequest)WebRequest.Create(_endPointName);

httpWebRequest.ContentType = "application/x-www-form-urlencoded";
httpWebRequest.Method = "POST";
httpWebRequest.Headers["ContentType"] = "application/x-www-form-urlencoded";

System.Net.ServicePointManager.ServerCertificateValidationCallback +=
                                                  (se, cert, chain, sslerror) =>
                                                  {
                                                      return true;
                                                  };


using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
                {
                    streamWriter.Write(urlParameters);
                    streamWriter.Flush();
                    streamWriter.Close();
                }
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
                {
                    var result = streamReader.ReadToEnd();
                }

I'll answer this question in Go because Go does not have a rich a lot of collections in its standard library.

Since a stack is really easy to implement I thought I'd try and use two stacks to accomplish a double ended queue. To better understand how I arrived at my answer I've split the implementation in two parts, the first part is hopefully easier to understand but it's incomplete.

type IntQueue struct {
    front       []int
    back        []int
}

func (q *IntQueue) PushFront(v int) {
    q.front = append(q.front, v)
}

func (q *IntQueue) Front() int {
    if len(q.front) > 0 {
        return q.front[len(q.front)-1]
    } else {
        return q.back[0]
    }
}

func (q *IntQueue) PopFront() {
    if len(q.front) > 0 {
        q.front = q.front[:len(q.front)-1]
    } else {
        q.back = q.back[1:]
    }
}

func (q *IntQueue) PushBack(v int) {
    q.back = append(q.back, v)
}

func (q *IntQueue) Back() int {
    if len(q.back) > 0 {
        return q.back[len(q.back)-1]
    } else {
        return q.front[0]
    }
}

func (q *IntQueue) PopBack() {
    if len(q.back) > 0 {
        q.back = q.back[:len(q.back)-1]
    } else {
        q.front = q.front[1:]
    }
}

It's basically two stacks where we allow the bottom of the stacks to be manipulated by each other. I've also used the STL naming conventions, where the traditional push, pop, peek operations of a stack have a front/back prefix whether they refer to the front or back of the queue.

The issue with the above code is that it doesn't use memory very efficiently. Actually, it grows endlessly until you run out of space. That's really bad. The fix for this is to simply reuse the bottom of the stack space whenever possible. We have to introduce an offset to track this since a slice in Go cannot grow in the front once shrunk.

type IntQueue struct {
    front       []int
    frontOffset int
    back        []int
    backOffset  int
}

func (q *IntQueue) PushFront(v int) {
    if q.backOffset > 0 {
        i := q.backOffset - 1
        q.back[i] = v
        q.backOffset = i
    } else {
        q.front = append(q.front, v)
    }
}

func (q *IntQueue) Front() int {
    if len(q.front) > 0 {
        return q.front[len(q.front)-1]
    } else {
        return q.back[q.backOffset]
    }
}

func (q *IntQueue) PopFront() {
    if len(q.front) > 0 {
        q.front = q.front[:len(q.front)-1]
    } else {
        if len(q.back) > 0 {
            q.backOffset++
        } else {
            panic("Cannot pop front of empty queue.")
        }
    }
}

func (q *IntQueue) PushBack(v int) {
    if q.frontOffset > 0 {
        i := q.frontOffset - 1
        q.front[i] = v
        q.frontOffset = i
    } else {
        q.back = append(q.back, v)
    }
}

func (q *IntQueue) Back() int {
    if len(q.back) > 0 {
        return q.back[len(q.back)-1]
    } else {
        return q.front[q.frontOffset]
    }
}

func (q *IntQueue) PopBack() {
    if len(q.back) > 0 {
        q.back = q.back[:len(q.back)-1]
    } else {
        if len(q.front) > 0 {
            q.frontOffset++
        } else {
            panic("Cannot pop back of empty queue.")
        }
    }
}

It's a lot of small functions but of the 6 functions 3 of them are just mirrors of the other.

If anyone need sort according to key best is to use below

usort($array, build_sorter('order'));

function build_sorter($key) {
   return function ($a, $b) use ($key) {
      return strnatcmp($a[$key], $b[$key]);
   };
}

A "technical manager" who had formerly been a coder introduced the following wonderful macros into our C++ project because he thought that checking for NULL values in DOM parsing routines was just too much work:

TRYSEGV
CATCHSEGV

Under the covers, these used setjmp, longjmp, and a signal handler for SIGSEGV to emulate the ability to "catch" a segfault.

Of course, nothing in the code reset the jump pointed once the code had exited the scope of the original TRYSEGV macro invocation, so any segfault in the code would return to the (now invalid) jump_env pointer.

The code would immediately die there, but not before destroying the program stack and rendering debugging more or less pointless.

Another way is to create a patch with the differences and apply it in the master branch For instance. Let's say the last commit before you started working on app.js is 00000aaaaa and the commit containg the version you want is 00000bbbbb

The you run this on the experiment branch:

git diff 00000aaaaa 00000bbbbb app.js > ~/app_changes.git

This will create a file with all the differences between those two commits for app.js that you can apply wherever you want. You can keep that file anywhere outside the project

Then, in master you just run:

git apply ~/app_changes.git

now you are gonna see the changes in the projects as if you had made them manually.

If anyone cares, for NTEXT, use the following format:

SELECT CAST(REPLACE(CAST([ColumnValue] AS NVARCHAR(MAX)),'find','replace') AS NTEXT) 
    FROM [DataTable]

First, we must make a distinction between layers and tiers. Layers are the way to logically break code into components and tiers are the physical nodes to place the components on. This question explains it better: What's the difference between "Layers" and "Tiers"?

A two layer architecture is usually just a presentation layer and data store layer. These can be on 1 tier (1 machine) or 2 tiers (2 machines) to achieve better performance by distributing the work load.

A three layer architecture usually puts something between the presentation and data store layers such as a business logic layer or service layer. Again, you can put this into 1,2, or 3 tiers depending on how much money you have for hardware and how much load you expect.

Putting multiple machines in a tier will help with the robustness of the system by providing redundancy.

Below is a good example of a layered architecture:

_{(source: microsoft.com)}

A good reference for all of this can be found here on MSDN: http://msdn.microsoft.com/en-us/library/ms978678.aspx

I was running in to a problem with the standard way to do this:

$string = "one";

$float = (float)$string;

echo $float; : ( Prints 0 )

If there isn't a valid number, the parser shouldn't return a number, it should throw an error. (This is a condition I'm trying to catch in my code, YMMV)

To fix this I have done the following:

$string = "one";

$float = is_numeric($string) ? (float)$string : null;

echo $float; : ( Prints nothing )

Then before further processing the conversion, I can check and return an error if there wasn't a valid parse of the string.

If TomCat is install. Perhaps it is not installed Java EE. Services-> plug-ins-> additional plug-ins-> in the search dial tomcat. and install the module java ee. then in the services, servers, add the tomcat server.

General Syntax:

7z a archive_name target parameters

Check your 7-Zip dir. Depending on the release you have, 7z may be replaced with 7za in the syntax.

Parameters:

• -p encrypt and prompt for PW.
• -pPUT_PASSWORD_HERE (this replaces -p) if you want to preset the PW with no prompt.
• -mhe=on to hide file structure, otherwise file structure and names will be visible by default.

Eg. This will prompt for a PW and hide file structures:

7z a archive_name target -p -mhe=on

Eg. No prompt, visible file structure:

7z a archive_name target -pPUT_PASSWORD_HERE

And so on. If you leave target blank, 7z will assume * in current directory and it will recurs directories by default.

To create frames from video:

ffmpeg\ffmpeg -i %video% test\thumb%04d.jpg -hide_banner

Optional: remove frames you don't want in output video
(more accurate than trimming video with -ss & -t)

Then create video from image/frames eg.:

ffmpeg\ffmpeg -framerate 30 -start_number 56 -i test\thumb%04d.jpg -vf format=yuv420p test/output.mp4

It is an old question, but I just ran into it. Type.GetMethod(string name) will throw an AmbiguousMatchException if there is more than one method with that name, so we better handle that case

public static bool HasMethod(this object objectToCheck, string methodName)
{
    try
    {
        var type = objectToCheck.GetType();
        return type.GetMethod(methodName) != null;
    }
    catch(AmbiguousMatchException)
    {
        // ambiguous means there is more than one result,
        // which means: a method with that name does exist
        return true;
    }
} 

On my machine (Windows7, 64bit) I could fix this by setting my execution environment to a 32bit variant of the jdk (I used 1.6.0_23). And I tried a lot of things before...

I like Kyle Simpson's definition of a closure:

Closure is when a function is able to remember and access its lexical scope even when that function is executing outside its lexical scope.

Lexical scope is when an inner scope can access its outer scope.

Here is a modified example he provides in his book series 'You Don't Know JS: Scopes & Closures'.

function foo() {
  var a = 2;

  function bar() {
    console.log( a );
  }
  return bar;
}

function test() {
  var bz = foo();
  bz();
}

// prints 2. Here function bar referred by var bz is outside 
// its lexical scope but it can still access it
test(); 

In my case I had to set MaxHeight and replace IsEnabled="False" by IsReadOnly="True"

try this one

var query = "{% url accounts.views.instasearch  %}?q=" + $('#tags').val().replace(/ /g, '+');

There's a pretty good explanation of first level caching on the Streamline Logic blog.

Basically, first level caching happens on a per session basis where as second level caching can be shared across multiple sessions.

Amiram Korach solution is indeed tidy. Here's an alternative for the sake of versatility.

var count = dtList.Count;
// Perform a reverse tracking.
for (var i = count - 1; i > -1; i--)
{
    if (dtList[i]==string.Empty) dtList.RemoveAt(i);
}
// Keep only the unique list items.
dtList = dtList.Distinct().ToList();

private String getMyPhoneNumber(){
    TelephonyManager mTelephonyMgr;
    mTelephonyMgr = (TelephonyManager)
        getSystemService(Context.TELEPHONY_SERVICE); 
    return mTelephonyMgr.getLine1Number();
}

private String getMy10DigitPhoneNumber(){
    String s = getMyPhoneNumber();
    return s.substring(2);
}

jQuery is not the same as an array. If you want to append something at the end of a jQuery object, use:

$('#fruit').append(veggies);

or to append it to the end of a form value like in your example:

 $('#fruit').val($('#fruit').val()+veggies);

In your case, fruitvegbasket is a string that contains the current value of #fruit, not an array.

jQuery (jquery.com) allows for DOM manipulation, and the specific function you called val() returns the value attribute of an input element as a string. You can't push something onto a string.

Use Apache Commons Lang:

String a= "\\*\\";
str = StringUtils.replace(xpath, ".", a);

or with standalone JDK:

String a = "\\*\\"; // or: String a = "/*/";
String replacement = Matcher.quoteReplacement(a);
String searchString = Pattern.quote(".");
String str = xpath.replaceAll(searchString, replacement);

Maybe it is really late answer but if you want to navigate another page with param you can,

[routerLink]="['/user', user.id, 'details']"

also you shouldn't forget about routing config like ,

 [path: 'user/:id/details', component:userComponent, pathMatch: 'full']

For react-router 2.4.0+

NOTE: It is advisable to migrate all your code to the latest react-router to get all the new goodies.

As recommended in the react-router documentation:

One should use the withRouter higher order component:

We think this new HoC is nicer and easier, and will be using it in documentation and examples, but it is not a hard requirement to switch.

As an ES6 example from the documentation:

import React from 'react'
import { withRouter } from 'react-router'

const Page = React.createClass({

  componentDidMount() {
    this.props.router.setRouteLeaveHook(this.props.route, () => {
      if (this.state.unsaved)
        return 'You have unsaved information, are you sure you want to leave this page?'
    })
  }

  render() {
    return <div>Stuff</div>
  }

})

export default withRouter(Page)

Although this question specifically asks about IntelliJ, this was the first result I received on Google, so I believe that many Eclipse users may have the same problem using Buildship.

You can set your Gradle JVM in Eclipse by going to Gradle Tasks (in the default view, down at the bottom near the console), right-clicking on the specific task you are trying to run, clicking "Open Gradle Run Configuration..." and moving to the Java Home tab and picking the correct JVM for your project.

To encode the characters, you can use CGI.escapeHTML:

string = CGI.escapeHTML('test "escaping" <characters>')

To decode them, there is CGI.unescapeHTML:

CGI.unescapeHTML("test "unescaping" <characters>")

Of course, before that you need to include the CGI library:

require 'cgi'

And if you're in Rails, you don't need to use CGI to encode the string. There's the h method.

<%= h 'escaping <html>' %>

I use yaml for that if needs to be readable (neither JSON nor XML are that IMHO), or if reading is not necessary I use pickle.

Write

from pickle import dumps, loads
x = dict(a=1, b=2)
y = dict(c = x, z=3)
res = dumps(y)
open('/var/tmp/dump.txt', 'w').write(res)

Read back

from pickle import dumps, loads
rev = loads(open('/var/tmp/dump.txt').read())
print rev

This worked for me on Windows 10, via the command line:

git checkout <oldname>
git branch -m <newname>

From How To Rename a Local and Remote Git Branch

This was a local-only repository (not on any remotes).

Yes, it's "not equal".

Because Javascript changes very slowly. And that's because people upgrade browsers slowly.

Many Javascript libraries implement their own last() function. Use one!

hi try the following ...

function pageLoad (sender, args) {

alert (args._isPartialLoad);

}

the result is a Boolean

Thanks,Bruno for giving me heads up on Common Name and Subject Alternative Name. As we figured out certificate was generated with CN with DNS name of network and asked for regeneration of new certificate with Subject Alternative Name entry i.e. san=ip:10.0.0.1. which is the actual solution.

But, we managed to find out a workaround with which we can able to run on development phase. Just add a static block in the class from which we are making ssl connection.

static {
    HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier()
        {
            public boolean verify(String hostname, SSLSession session)
            {
                // ip address of the service URL(like.23.28.244.244)
                if (hostname.equals("23.28.244.244"))
                    return true;
                return false;
            }
        });
}

If you happen to be using Java 8, there is a much slicker way of achieving the same result:

static {
    HttpsURLConnection.setDefaultHostnameVerifier((hostname, session) -> hostname.equals("127.0.0.1"));
}

The structs testing.T and testing.B both have a .Log and .Logf method that sound to be what you are looking for. .Log and .Logf are similar to fmt.Print and fmt.Printf respectively.

See more details here: http://golang.org/pkg/testing/#pkg-index

fmt.X print statements do work inside tests, but you will find their output is probably not on screen where you expect to find it and, hence, why you should use the logging methods in testing.

If, as in your case, you want to see the logs for tests that are not failing, you have to provide go test the -v flag (v for verbosity). More details on testing flags can be found here: https://golang.org/cmd/go/#hdr-Testing_flags

Floating point number representations are notoriously inaccurate because of the way floats are stored internally. E.g. x may actually be 0.0999999999 or 0.100000001 and your condition will fail. If you want to determine if floats are equal you need to specify whether they're equal to within a certain tolerance.

I.e.:

if(Math.Abs(x - 0.1) < tol) {
   // Do something 
}

Amazon DynamoDB provides the Scan operation for this purpose, which returns one or more items and its attributes by performing a full scan of a table. Please be aware of the following two constraints:

• Depending on your table size, you may need to use pagination to retrieve the entire result set:

  Note
  If the total number of scanned items exceeds the 1MB limit, the scan stops and results are returned to the user with a LastEvaluatedKey to continue the scan in a subsequent operation. The results also include the number of items exceeding the limit. A scan can result in no table data meeting the filter criteria.

  The result set is eventually consistent.

• The Scan operation is potentially costly regarding both performance and consumed capacity units (i.e. price), see section Scan and Query Performance in Query and Scan in Amazon DynamoDB:

  [...] Also, as a table grows, the scan operation slows. The scan operation examines every item for the requested values, and can use up the provisioned throughput for a large table in a single operation. For quicker response times, design your tables in a way that can use the Query, Get, or BatchGetItem APIs, instead. Or, design your application to use scan operations in a way that minimizes the impact on your table's request rate. For more information, see Provisioned Throughput Guidelines in Amazon DynamoDB. [emphasis mine]

You can find more details about this operation and some example snippets in Scanning Tables Using the AWS SDK for PHP Low-Level API for Amazon DynamoDB, with the most simple example illustrating the operation being:

$dynamodb = new AmazonDynamoDB();

$scan_response = $dynamodb->scan(array(
    'TableName' => 'ProductCatalog' 
));

foreach ($scan_response->body->Items as $item)
{
    echo "<p><strong>Item Number:</strong>"
         . (string) $item->Id->{AmazonDynamoDB::TYPE_NUMBER};
    echo "<br><strong>Item Name: </strong>"
         . (string) $item->Title->{AmazonDynamoDB::TYPE_STRING} ."</p>";
}

Consider following code

<ul id="myTask">
  <li>Coding</li>
  <li>Answering</li>
  <li>Getting Paid</li>
</ul>

Now, here goes the difference

// Remove the myTask item when clicked.
$('#myTask').children().click(function () {
  $(this).remove()
});

Now, what if we add a myTask again?

$('#myTask').append('<li>Answer this question on SO</li>');

Clicking this myTask item will not remove it from the list, since it doesn't have any event handlers bound. If instead we'd used .on, the new item would work without any extra effort on our part. Here's how the .on version would look:

$('#myTask').on('click', 'li', function (event) {
  $(event.target).remove()
});

Summary:

The difference between .on() and .click() would be that .click() may not work when the DOM elements associated with the .click() event are added dynamically at a later point while .on() can be used in situations where the DOM elements associated with the .on() call may be generated dynamically at a later point.

To send image along with json data in postman you just have to follow the below steps .

• Make your method to post in postman
• go to the body section and click on form-data
• provide your field name select file from the dropdown list as shown below
• you can also provide your other fields .
• now just write your image storing code in your controller as shown below .

postman :

my controller :

public function sendImage(Request $request)
{
    $image=new ImgUpload;  
    if($request->hasfile('image'))  
    {  
        $file=$request->file('image');  
        $extension=$file->getClientOriginalExtension();  
        $filename=time().'.'.$extension;  
        $file->move('public/upload/userimg/',$filename);  
        $image->image=$filename;  
    }  
    else  
    {  
        return $request;  
        $image->image='';  
    }  
    $image->save();
    return response()->json(['response'=>['code'=>'200','message'=>'image uploaded successfull']]);
}

That's it hope it will help you

Currency pipe uses the number one internally for number formatting. So you can use it like this:

{{ number | number : '1.2-2'}}

There are multiple options available to reuse the existing powerful libraries that are standards based.

If you happen to use D3 in your project, then you can simply invoke:

    d3.csv.format or d3.csv.formatRows functions to convert an array of objects into csv string.

    d3.csv.formatRows gives you greater control over which properties are converted to csv.

    Please refer to d3.csv.format and d3.csv.formatRows wiki pages.

There are other libraries available too like jquery-csv, PapaParse. Papa Parse has no dependencies - not even jQuery.

For jquery based plugins, please check this.

If you want to create a garage and fill it up with new cars that can be accessed later, use this code:

for (int i = 0; i < garage.length; i++)
     garage[i] = new Car("argument");

Also, the cars are later accessed using:

garage[0];
garage[1];
garage[2];
etc.

int fib(int x) 
{
    if (x < 2)
      return x;
    else 
      return (fib(x - 1) + fib(x - 2));
}

To accomplish this, add 2 CSS properties on the <body> element.

body {
   height: 100%;
   overflow-y: hidden;
}

These days there are many news websites which require users to create an account. Typically they will give full access to the page for about a second, and then they show a pop-up, and stop users from scrolling down.

tigeravatar and Jean-François Corbett suggested to use this formula to generate the string right of the last occurrence of the "\" character

=TRIM(RIGHT(SUBSTITUTE(A1,"\",REPT(" ",LEN(A1))),LEN(A1)))

If the character used as separator is space, " ", then the formula has to be changed to:

=SUBSTITUTE(RIGHT(SUBSTITUTE(A1," ",REPT("{",LEN(A1))),LEN(A1)),"{","")

No need to mention, the "{" character can be replaced with any character that would not "normally" occur in the text to process.

Give a class .border-lb and give this CSS

.border-lb {border: 1px solid #ccc; border-width: 0 0 1px 1px;}

And the HTML

<table width="770">
  <tr>
    <td class="border-lb">picture (border only to the left and bottom ) </td>
    <td>text</td>
  </tr>
  <tr>
    <td>text</td>
    <td class="border-lb">picture (border only to the left and bottom) </td>
  </tr>
</table>

Screenshot

Fiddle: http://jsfiddle.net/FXMVL/

else if(Decision >= 3)
    {
exit(0);
    }

just offering this up as a possible solution if you don't think the user will have a negative experience on the obvious change. I simply changed the body's class of overflow to hidden when the mouse was over the target div; then I changed the body's div to hidden overflow when the mouse leaves.

Personally I don't think it looks bad, my code could use toggle to make it cleaner, and there are obvious benefits for making this effect possible without the user being aware. So this is probably the hackish-last-resort answer.

//listen mouse on and mouse off for the button
pxMenu.addEventListener("mouseover", toggleA1);
pxOptContainer.addEventListener("mouseout", toggleA2);
//show / hide the pixel option menu
function toggleA1(){
  pxOptContainer.style.display = "flex";
  body.style.overflow = "hidden";
}
function toggleA2(){
  pxOptContainer.style.display = "none";
  body.style.overflow = "hidden scroll";
}

Laravel 5.6:

{{ Request::query('parameter') }}

For me the fix was removing the node* packages and also the npm packages.

Then a fresh install as:

sudo apt-get install autoclean
sudo apt-get install nodejs-legacy
npm install

This should work on most databases. You can also select a blank string as your extra column like so:

Select
  Hat, Show, Boat, '' as SomeValue
From
  Objects

There is an 'exceptions' window in VS2005 ... try Ctrl+Alt+E when debugging and click on the 'Thrown' checkbox for the exception you want to stop on.

Not sure why nobody posted an actual SVG answer. Here is an SVG rectangle with rounded corners (radius 3) on the top:

<svg:path d="M0,0 L0,27 A3,3 0 0,0 3,30 L7,30 A3,3 0 0,0 10,27 L10,0 Z" />

This is a Move To (M), Line To (L), Arc To (A), Line To (L), Arc To (A), Line To (L), Close Path (Z).

The comma-delimited numbers are absolute coordinates. The arcs are defined with additional parameters specifying the radius and type of arc. This could also be accomplished with relative coordinates (use lower-case letters for L and A).

The complete reference for those commands is on the W3C SVG Paths page, and additional reference material on SVG paths can be found in this article.

As slight improvement to @MONTYHS answer, iterating through a tup of fieldnames:

import csv
import json

csvfilename = 'filename.csv'
jsonfilename = csvfilename.split('.')[0] + '.json'
csvfile = open(csvfilename, 'r')
jsonfile = open(jsonfilename, 'w')
reader = csv.DictReader(csvfile)

fieldnames = ('FirstName', 'LastName', 'IDNumber', 'Message')

output = []

for each in reader:
  row = {}
  for field in fieldnames:
    row[field] = each[field]
output.append(row)

json.dump(output, jsonfile, indent=2, sort_keys=True)

Some times If you touch the keyboard accidentally and removed a space.

if [ "$myvar" = "something"]; then
    do something
fi

Will trigger this error message. Note the space before ']' is required.

Two ways.

i. You can put it in ApplicationController and add the filters in the controller

    class ApplicationController < ActionController::Base       def filter_method       end     end      class FirstController < ApplicationController       before_filter :filter_method     end      class SecondController < ApplicationController       before_filter :filter_method     end 

But the problem here is that this method will be added to all the controllers since all of them extend from application controller

ii. Create a parent controller and define it there

 class ParentController < ApplicationController   def filter_method   end  end  class FirstController < ParentController   before_filter :filter_method end  class SecondController < ParentController   before_filter :filter_method end 

I have named it as parent controller but you can come up with a name that fits your situation properly.

You can also define the filter method in a module and include it in the controllers where you need the filter

Now with css3 you could try to use calc()

.main{
  height: calc(100% - 111px);
}

have a look at this answer: Div width 100% minus fixed amount of pixels

According to this site, this is supported in the playbackRate and defaultPlaybackRate attributes, accessible via the DOM. Example:

/* play video twice as fast */
document.querySelector('video').defaultPlaybackRate = 2.0;
document.querySelector('video').play();

/* now play three times as fast just for the heck of it */
document.querySelector('video').playbackRate = 3.0;

The above works on Chrome 43+, Firefox 20+, IE 9+, Edge 12+.

You need to convert the date field to varchar to strip out the time, then convert it back to datetime, this will reset the time to '00:00:00.000'.

SELECT *
FROM [TableName]
WHERE
    (
        convert(datetime,convert(varchar,GETDATE(),1)) 

        between 

        convert(datetime,convert(varchar,[StartDate],1)) 

        and  

        convert(datetime,convert(varchar,[EndDate],1))
    )

I found that using the recommended table-responsive class in a wrapper still causes responsive tables to (surprisingly) shrink horizontally:

<div class="table-responsive-lg">
    <table class="table">
        ...
    </table>
</div>

The solution for me was to create the following media breakpoints and classes to prevent it:

.table-xs {
    width:544px;
}

.table-sm {
    width: 576px;
}

.table-md {
    width: 768px;
}

.table-lg {
    width: 992px;
}

.table-xl {
    width: 1200px;
}

/* Small devices (landscape phones, 544px and up) */
@media (min-width: 576px) {  
    .table-sm {
        width: 100%;
    }
}

/* Medium devices (tablets, 768px and up) The navbar toggle appears at this breakpoint */
@media (min-width: 768px) {
    .table-sm {
        width: 100%;
    }

    .table-md {
        width: 100%;
    }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
    .table-sm {
        width: 100%;
    }

    .table-md {
        width: 100%;
    }

    .table-lg {
        width: 100%;
    }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .table-sm {
        width: 100%;
    }

    .table-md {
        width: 100%;
    }

    .table-lg {
        width: 100%;
    }

    .table-xl {
        width: 100%;
    }
}

Then I can add the appropriate class to my table element. For example:

<div class="table-responsive-lg">
    <table class="table table-lg">
        ...
    </table>
</div>

Here the wrapper sets the width to 100% for large and greater per Bootstrap. With the table-lg class applied to the table element, the table width is set also set to 100% for large and greater, but set to 992px for medium and smaller. The classes table-xs, table-sm, table-md, and table-xl work the same way.

You can simply write

hex(x)[2:]

to get the first two characters removed.

CREATE OR REPLACE FUNCTION IS_NUMERIC(P_INPUT IN VARCHAR2) RETURN INTEGER IS
  RESULT INTEGER;
  NUM NUMBER ;
BEGIN
  NUM:=TO_NUMBER(P_INPUT);
  RETURN 1;
EXCEPTION WHEN OTHERS THEN
  RETURN 0;
END IS_NUMERIC;
/

@hussachai and @Jeffrey Kemp answers are pretty good. But they have something in common is the url returned is of virtual-host-style, not in path style. For more info regarding to the s3 url style, can refer to AWS S3 URL Styles. In case of some people want to have path style s3 url generated. Here's the step. Basically everything will be the same as @hussachai and @Jeffrey Kemp answers, only with one line setting change as below:

AmazonS3Client s3Client = (AmazonS3Client) AmazonS3ClientBuilder.standard()
                    .withRegion("us-west-2")
                    .withCredentials(DefaultAWSCredentialsProviderChain.getInstance())
                    .withPathStyleAccessEnabled(true)
                    .build();

// Upload a file as a new object with ContentType and title specified.
PutObjectRequest request = new PutObjectRequest(bucketName, stringObjKeyName, fileToUpload);
s3Client.putObject(request);
URL s3Url = s3Client.getUrl(bucketName, stringObjKeyName);
logger.info("S3 url is " + s3Url.toExternalForm());

This will generate url like: https://s3.us-west-2.amazonaws.com/mybucket/myfilename

Here is a simple python code example of Recursive, Top-down, Bottom-up approach for Fibonacci series:

Recursive: O(2ⁿ)

def fib_recursive(n):
    if n == 1 or n == 2:
        return 1
    else:
        return fib_recursive(n-1) + fib_recursive(n-2)


print(fib_recursive(40))

Top-down: O(n) Efficient for larger input

def fib_memoize_or_top_down(n, mem):
    if mem[n] is not 0:
        return mem[n]
    else:
        mem[n] = fib_memoize_or_top_down(n-1, mem) + fib_memoize_or_top_down(n-2, mem)
        return mem[n]


n = 40
mem = [0] * (n+1)
mem[1] = 1
mem[2] = 1
print(fib_memoize_or_top_down(n, mem))

Bottom-up: O(n) For simplicity and small input sizes

def fib_bottom_up(n):
    mem = [0] * (n+1)
    mem[1] = 1
    mem[2] = 1
    if n == 1 or n == 2:
        return 1

    for i in range(3, n+1):
        mem[i] = mem[i-1] + mem[i-2]

    return mem[n]


print(fib_bottom_up(40))

Use #element{ height:100vh}

This will set the height of the #element to 100% of viewport. Hope this helps.

Answer is to add a having clause:

SELECT [columns]
FROM table t1
WHERE value= (select max(value) from table)
AND date = (select MIN(date) from table t2 where t1.value = t2.value)

this should work and gets rid of the neccesity of having an extra sub select in the date clause.

You may want to use WildcardPattern from System.Management.Automation assembly. See my answer here.

This is typical programming practice for defining variables that are member variables. So when you're using them later, you don't need to see where they're defined to know their scope. This is also great if you already know the scope and you're using something like intelliSense, you can start with m_ and a list of all your member variables are shown. Part of Hungarian notation, see the part about scope in the examples here.

A character in Java is a Unicode code-unit which is treated as an unsigned number. So if you perform c = (char)b the value you get is 2^16 - 56 or 65536 - 56.

Or more precisely, the byte is first converted to a signed integer with the value 0xFFFFFFC8 using sign extension in a widening conversion. This in turn is then narrowed down to 0xFFC8 when casting to a char, which translates to the positive number 65480.

From the language specification:

5.1.4. Widening and Narrowing Primitive Conversion

First, the byte is converted to an int via widening primitive conversion (§5.1.2), and then the resulting int is converted to a char by narrowing primitive conversion (§5.1.3).

To get the right point use char c = (char) (b & 0xFF) which first converts the byte value of b to the positive integer 200 by using a mask, zeroing the top 24 bits after conversion: 0xFFFFFFC8 becomes 0x000000C8 or the positive number 200 in decimals.

Above is a direct explanation of what happens during conversion between the byte, int and char primitive types.

If you want to encode/decode characters from bytes, use Charset, CharsetEncoder, CharsetDecoder or one of the convenience methods such as new String(byte[] bytes, Charset charset) or String#toBytes(Charset charset). You can get the character set (such as UTF-8 or Windows-1252) from StandardCharsets.

Use the LayoutInflater as I shown below.

    public View myView() {
        View v; // Creating an instance for View Object
        LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        v = inflater.inflate(R.layout.myview, null);

        TextView text1 = v.findViewById(R.id.dolphinTitle);
        Button btn1 = v.findViewById(R.id.dolphinMinusButton);
        TextView text2 = v.findViewById(R.id.dolphinValue);
        Button btn2 = v.findViewById(R.id.dolphinPlusButton);

        return v;
    }

I too had this problem when i was trying out Gelocation API. I then started IIS express through visual studio and then accessed the page and It worked without any issue in all browsers.

If you want to delete a single file, you must, as you found out, use the unlink() function.

That function will delete what you pass it as a parameter : so, it's up to you to pass it the path to the file that it must delete.

For example, you'll use something like this :

unlink('/path/to/dir/filename');

The output file needs to be opened in binary mode:

f = open('varstor.txt','w')

needs to be:

f = open('varstor.txt','wb')

Here is a code for IE >= 9 by using split(" ") on the className :

function toggleClass(element, className) {
    var arrayClass = element.className.split(" ");
    var index = arrayClass.indexOf(className);

    if (index === -1) {
        if (element.className !== "") {
            element.className += ' '
        }
        element.className += className;
    } else {
        arrayClass.splice(index, 1);
        element.className = "";
        for (var i = 0; i < arrayClass.length; i++) {
            element.className += arrayClass[i];
            if (i < arrayClass.length - 1) {
                element.className += " ";
            }
        }
    }
}

I have a simpler solution. In your destination page (irc_online.php) add an auto-refresh tag in the header.

I create a file dif.go that contains your code:

package dif

import (
    "time"
)

var StartTime = time.Now()

Outside the folder I create my main.go, it is ok!

package main

import (
    dif "./dif"
    "fmt"
)

func main() {
    fmt.Println(dif.StartTime)
}

Outputs:

2016-01-27 21:56:47.729019925 +0800 CST

Files directory structure:

folder
  main.go
  dif
    dif.go

It works!

I use Iesi.Collections http://www.codeproject.com/KB/recipes/sets.aspx

It's used in lot of OSS projects, I first came across it in NHibernate

-Xmn : the size of the heap for the young generation Young generation represents all the objects which have a short life of time. Young generation objects are in a specific location into the heap, where the garbage collector will pass often. All new objects are created into the young generation region (called "eden"). When an object survive is still "alive" after more than 2-3 gc cleaning, then it will be swap has an "old generation" : they are "survivor" .

Good size is 33%

Source

datetime.replace() will provide the best options. Also, it provides facility for replacing day, year, and month.

Suppose we have a datetime object and date is represented as: "2017-05-04"

>>> from datetime import datetime
>>> date = datetime.strptime('2017-05-04',"%Y-%m-%d")
>>> print(date)
2017-05-04 00:00:00
>>> date = date.replace(minute=59, hour=23, second=59, year=2018, month=6, day=1)
>>> print(date)
2018-06-01 23:59:59

I think there is a simpler way:

 public async Task<string> CreateSoapEnvelope()
 {
      string soapString = @"<?xml version=""1.0"" encoding=""utf-8""?>
          <soap:Envelope xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:soap=""http://schemas.xmlsoap.org/soap/envelope/"">
              <soap:Body>
                  <HelloWorld xmlns=""http://tempuri.org/"" />
              </soap:Body>
          </soap:Envelope>";

          HttpResponseMessage response = await PostXmlRequest("your_url_here", soapString);
          string content = await response.Content.ReadAsStringAsync();

      return content;
 }

 public static async Task<HttpResponseMessage> PostXmlRequest(string baseUrl, string xmlString)
 {
      using (var httpClient = new HttpClient())
      {
          var httpContent = new StringContent(xmlString, Encoding.UTF8, "text/xml");
          httpContent.Headers.Add("SOAPAction", "http://tempuri.org/HelloWorld");

          return await httpClient.PostAsync(baseUrl, httpContent);
       }
 }

Using the Apache Commons IO library...

boolean isFileUnlocked = false;
try {
    org.apache.commons.io.FileUtils.touch(yourFile);
    isFileUnlocked = true;
} catch (IOException e) {
    isFileUnlocked = false;
}

if(isFileUnlocked){
    // Do stuff you need to do with a file that is NOT locked.
} else {
    // Do stuff you need to do with a file that IS locked
}

ApplicationContext (Root Application Context) : Every Spring MVC web application has an applicationContext.xml file which is configured as the root of context configuration. Spring loads this file and creates an applicationContext for the entire application. This file is loaded by the ContextLoaderListener which is configured as a context param in web.xml file. And there will be only one applicationContext per web application.

WebApplicationContext : WebApplicationContext is a web aware application context i.e. it has servlet context information. A single web application can have multiple WebApplicationContext and each Dispatcher servlet (which is the front controller of Spring MVC architecture) is associated with a WebApplicationContext. The webApplicationContext configuration file *-servlet.xml is specific to a DispatcherServlet. And since a web application can have more than one dispatcher servlet configured to serve multiple requests, there can be more than one webApplicationContext file per web application.

This actually works for me:

Per the README.SSO that comes with the jtdsd distribution:

In order for Single Sign On to work, jTDS must be able to load the native SPPI library ntlmauth.dll. Place this DLL anywhere in the system path (defined by the PATH system variable) and you're all set.

I placed it in my jre/bin folder

I configured a port dedicated the sql server instance (2302) to alleviate the need for an instance name - just something I do. lportal is my database name.

jdbc.default.url=jdbc:jtds:sqlserver://192.168.0.147:2302/lportal;useNTLMv2=true;domain=mydomain.local

I kept using this all this time

Import-module .\build_functions.ps1 -Force

I am not familiar with Axios, but as far as I know in javascript and ajax there is an option

withCredentials: true

This will automatically send the cookie to the client-side. As an example, this scenario is also generated with passportjs, which sets a cookie on the server

docker pull chenzj/dfimage


alias dfimage="docker run -v /var/run/docker.sock:/var/run/docker.sock --rm chenzj/dfimage"

dfimage image_id

Below is ouput of dfimage command:

$ dfimage 0f1947a021ce

FROM node:8
WORKDIR /usr/src/app

COPY file:e76d2e84545dedbe901b7b7b0c8d2c9733baa07cc821054efec48f623e29218c in ./
RUN /bin/sh -c npm install
COPY dir:a89a4894689a38cbf3895fdc0870878272bb9e09268149a87a6974a274b2184a in .

EXPOSE 8080
CMD ["npm" "start"]

Windows->Preferences->Server

Server Timeout can be specified there.

or another method via the Servers tab here:

http://henneberke.wordpress.com/2009/09/28/fixing-eclipse-tomcat-timeout/

Remove the inline event handler and do it completly unobtrusive, like

?$('????#race').bind('change', function(){
  var $this = $(this),
      id    = $this[0].id;

  if(/^other$/.test($(this).val())){
      $this.replaceWith($('<input/>', {
          type: 'text',
          name:  id,
          id: id
      }));
  }
});???

Use prop() instead of attr() to set the value of checked. Also use :checkbox in find method instead of input and be specific.

Live Demo

$("#news_list tr").click(function() {
    var ele = $(this).find('input');
    if(ele.is(':checked')){
        ele.prop('checked', false);
        $(this).removeClass('admin_checked');
    }else{
        ele.prop('checked', true);
        $(this).addClass('admin_checked');
    }
});

Use prop instead of attr for properties like checked

As of jQuery 1.6, the .attr() method returns undefined for attributes that have not been set. To retrieve and change DOM properties such as the checked, selected, or disabled state of form elements, use the .prop() method

It's a shame that we need multiple ARG too, it results in multiple layers and slows down the build because of that, and for anyone also wondering that, currently there is no way to set multiple ARGs.

cgi.escape is fine. It escapes:

• < to <
• > to >
• & to &

That is enough for all HTML.

EDIT: If you have non-ascii chars you also want to escape, for inclusion in another encoded document that uses a different encoding, like Craig says, just use:

data.encode('ascii', 'xmlcharrefreplace')

Don't forget to decode data to unicode first, using whatever encoding it was encoded.

However in my experience that kind of encoding is useless if you just work with unicode all the time from start. Just encode at the end to the encoding specified in the document header (utf-8 for maximum compatibility).

Example:

>>> cgi.escape(u'<a>bá</a>').encode('ascii', 'xmlcharrefreplace')
'&lt;a&gt;b&#225;&lt;/a&gt;

Also worth of note (thanks Greg) is the extra quote parameter cgi.escape takes. With it set to True, cgi.escape also escapes double quote chars (") so you can use the resulting value in a XML/HTML attribute.

EDIT: Note that cgi.escape has been deprecated in Python 3.2 in favor of html.escape, which does the same except that quote defaults to True.

Open eclipse go to Servers panel, right click or press F3 to open Overview window and go to Ports (Modify the server ports). You will get the following:

tomcat adminport
HTTP/1.1
AJP/1.3

You can change the port numbers (e.g. HTTP/1.1 port number 8080 to 8082).

Alternatively, if you are able to use external libraries, you can use filehound. It supports callbacks, promises and sync calls.

Using promises:

const Filehound = require('filehound');

Filehound.create()
  .path("MyFolder")
  .directory() // only search for directories
  .find()
  .then((subdirectories) => {
    console.log(subdirectories);
  });

Using callbacks:

const Filehound = require('filehound');

Filehound.create()
  .path("MyFolder")
  .directory()
  .find((err, subdirectories) => {
    if (err) return console.error(err);

    console.log(subdirectories);
  });

Sync call:

const Filehound = require('filehound');

const subdirectories = Filehound.create()
  .path("MyFolder")
  .directory()
  .findSync();

console.log(subdirectories);

For further information (and examples), check out the docs: https://github.com/nspragg/filehound

Disclaimer: I'm the author.

On submitting, you would get an array as if created like this:

$_POST['topdiameter'] = array( 'first value', 'second value' );
$_POST['bottomdiameter'] = array( 'first value', 'second value' );

However, I would suggest changing your form names to this format instead:

name="diameters[0][top]"
name="diameters[0][bottom]"
name="diameters[1][top]"
name="diameters[1][bottom]"
...

Using that format, it's much easier to loop through the values.

if ( isset( $_POST['diameters'] ) )
{
    echo '<table>';
    foreach ( $_POST['diameters'] as $diam )
    {
        // here you have access to $diam['top'] and $diam['bottom']
        echo '<tr>';
        echo '  <td>', $diam['top'], '</td>';
        echo '  <td>', $diam['bottom'], '</td>';
        echo '</tr>';
    }
    echo '</table>';
}

You can use plain javascript - Array.prototype.filter()

$scope.items = $scope.items.filter(function(item) {
    return item.name !== 'ted';
});

While many options above function well, I found coercion of non-target variables to chr problematic. Using ifelse and grepl within lapply resolves this off-target effect (in limited testing). Using slarky's regular expression in grepl:

set.seed(42)
x1 <- sample(c("a","b"," ", "a a", NA), 10, TRUE)
x2 <- sample(c(rnorm(length(x1),0, 1), NA), length(x1), TRUE)

df <- data.frame(x1, x2, stringsAsFactors = FALSE)

The problem of coercion to character class:

df2 <- lapply(df, function(x) gsub("^$|^ $", NA, x))
lapply(df2, class)

$x1 [1] "character"

$x2 [1] "character"

Resolution with use of ifelse:

df3 <- lapply(df, function(x) ifelse(grepl("^$|^ $", x)==TRUE, NA, x))
lapply(df3, class)

$x1 [1] "character"

$x2 [1] "numeric"

Just remove the border and add a background image in css

Example:

$("#form").on('submit', function() {_x000D_
   alert($("#submit-icon").val());_x000D_
});

#submit-icon {_x000D_
  background-image: url("https://pixabay.com/static/uploads/photo/2016/10/18/21/22/california-1751455__340.jpg"); /* Change url to wanted image */_x000D_
  background-size: cover;_x000D_
  border: none;_x000D_
  width: 32px;_x000D_
  height: 32px;_x000D_
  cursor: pointer;_x000D_
  color: transparent;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form id="form">_x000D_
  <input type="submit" id="submit-icon" value="test">_x000D_
</form>

git checkout old_branch
git branch new_branch

This will give you a new branch "new_branch" with the same state as "old_branch".

This command can be combined to the following:

git checkout -b new_branch old_branch

Hash map works on the principle of hashing

HashMap get(Key k) method calls hashCode method on the key object and applies returned hashValue to its own static hash function to find a bucket location(backing array) where keys and values are stored in form of a nested class called Entry (Map.Entry) . So you have concluded that from the previous line that Both key and value is stored in the bucket as a form of Entry object . So thinking that Only value is stored in the bucket is not correct and will not give a good impression on the interviewer .

• Whenever we call get( Key k ) method on the HashMap object . First it checks that whether key is null or not . Note that there can only be one null key in HashMap .

If key is null , then Null keys always map to hash 0, thus index 0.

If key is not null then , it will call hashfunction on the key object , see line 4 in above method i.e. key.hashCode() ,so after key.hashCode() returns hashValue , line 4 looks like

            int hash = hash(hashValue)

and now ,it applies returned hashValue into its own hashing function .

We might wonder why we are calculating the hashvalue again using hash(hashValue). Answer is It defends against poor quality hash functions.

Now final hashvalue is used to find the bucket location at which the Entry object is stored . Entry object stores in the bucket like this (hash,key,value,bucketindex)

No. That would just select the parameter value. You would need to use dynamic sql.

In your procedure you would have the following:

DECLARE @sql nvarchar(max) = 'SELECT ' + @columnname + ' FROM Table_1';
exec sp_executesql @sql, N''

I faced this same problem. Go to the Solution Properties and change Any CPU to x86, I think it will do the job.

// Size of numbers
def n=100;

// A list of numbers that is missing k numbers.
def list;

// A map
def map = [:];

// Populate the map so that it contains all numbers.
for(int index=0; index<n; index++)
{
  map[index+1] = index+1;  
}

// Get size of list that is missing k numbers.
def size = list.size();

// Remove all numbers, that exists in list, from the map.
for(int index=0; index<size; index++)
{
  map.remove(list.get(index));  
}

// Content of map is missing numbers
println("Missing numbers: " + map);

You should wrap them in a div with no float.

<div style="float:none;background:#FDD017;" class="clearfix">
    <div id="response" style="float:left; width:65%;">Response with two lines</div>
    <div id="note" style="float:left; width:35%;">single line note</div>
</div>

I also use the clearfix patch on here http://www.webtoolkit.info/css-clearfix.html

You should re-assign the result of the replacement, like this:

 sentence = sentence.replace("and", " ");

Be aware that the String class is immutable, meaning that all of its methods return a new string and never modify the original string in-place, so the result of invoking a method in an instance of String must be assigned to a variable or used immediately for the change to take effect.

Here's a specific code sample which worked for me recently:

// Replace the builtin US date validation with UK date validation
$.validator.addMethod(
    "date",
    function ( value, element ) {
        var bits = value.match( /([0-9]+)/gi ), str;
        if ( ! bits )
            return this.optional(element) || false;
        str = bits[ 1 ] + '/' + bits[ 0 ] + '/' + bits[ 2 ];
        return this.optional(element) || !/Invalid|NaN/.test(new Date( str ));
    },
    "Please enter a date in the format dd/mm/yyyy"
);

I should note that this actually replaces the built-in date validation routine, though I couldn't see that this should cause an issue with the current plugin.

I then applied this to the form using:

$( '#my_form input.date' ).rules( 'add', { date: true } );

UPDATE Feb. 2021

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

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

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

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

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

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

and then, launching your intent whenever you need to:

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

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

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

setResult(Activity.RESULT_OK, data)
finish()

For any additional information, please refer to Android Documentation

Yet another way

$("#wizard li").click(function () 
{
    $($(this),'#wizard"').index();
});

Demo https://jsfiddle.net/m9xge3f5/

If you are managing the Hibernate session manually, you may want to look into sessionFactory.getCurrentSession() and associated docs here:

http://www.hibernate.org/hib_docs/v3/reference/en/html/architecture-current-session.html

i used Bill Paetzke answer to print a div contain images but it didn't work with google chrome

i just needed to add this line myWindow.onload=function(){ to make it work and here is the full code

<html>
<head>
    <script type="text/javascript" src="http://jqueryjs.googlecode.com/files/jquery-1.3.1.min.js"> </script>
    <script type="text/javascript">
        function PrintElem(elem) {
            Popup($(elem).html());
        }

        function Popup(data) {
            var myWindow = window.open('', 'my div', 'height=400,width=600');
            myWindow.document.write('<html><head><title>my div</title>');
            /*optional stylesheet*/ //myWindow.document.write('<link rel="stylesheet" href="main.css" type="text/css" />');
            myWindow.document.write('</head><body >');
            myWindow.document.write(data);
            myWindow.document.write('</body></html>');
            myWindow.document.close(); // necessary for IE >= 10

            myWindow.onload=function(){ // necessary if the div contain images

                myWindow.focus(); // necessary for IE >= 10
                myWindow.print();
                myWindow.close();
            };
        }
    </script>
</head>
<body>
    <div id="myDiv">
        This will be printed.
        <img src="image.jpg"/>
    </div>
    <div>
        This will not be printed.
    </div>
    <div id="anotherDiv">
        Nor will this.
    </div>
    <input type="button" value="Print Div" onclick="PrintElem('#myDiv')" />
</body>
</html>

also if someone just need to print a div with id he doesn't need to load jquery

here is pure javascript code to do this

<html>
<head>
    <script type="text/javascript">
        function PrintDiv(id) {
            var data=document.getElementById(id).innerHTML;
            var myWindow = window.open('', 'my div', 'height=400,width=600');
            myWindow.document.write('<html><head><title>my div</title>');
            /*optional stylesheet*/ //myWindow.document.write('<link rel="stylesheet" href="main.css" type="text/css" />');
            myWindow.document.write('</head><body >');
            myWindow.document.write(data);
            myWindow.document.write('</body></html>');
            myWindow.document.close(); // necessary for IE >= 10

            myWindow.onload=function(){ // necessary if the div contain images

                myWindow.focus(); // necessary for IE >= 10
                myWindow.print();
                myWindow.close();
            };
        }
    </script>
</head>
<body>
    <div id="myDiv">
        This will be printed.
        <img src="image.jpg"/>
    </div>
    <div>
        This will not be printed.
    </div>
    <div id="anotherDiv">
        Nor will this.
    </div>
    <input type="button" value="Print Div" onclick="PrintDiv('myDiv')" />
</body>
</html>

i hope this can help someone

In Chrome, request with 'Content-Type:application/json' shows as Request PayedLoad and sends data as json object.

But request with 'Content-Type:application/x-www-form-urlencoded' shows Form Data and sends data as Key:Value Pair, so if you have array of object in one key it flats that key's value:

{ Id: 1, 
name:'john', 
phones:[{title:'home',number:111111,...},
        {title:'office',number:22222,...}]
}

sends

{ Id: 1, 
name:'john', 
phones:[object object]
phones:[object object]
}

This script here will do it. Put it into authorship.sh, chmod +x it, and you're all set.

#!/bin/sh
declare -A map
while read line; do
    if grep "^[a-zA-Z]" <<< "$line" > /dev/null; then
        current="$line"
        if [ -z "${map[$current]}" ]; then 
            map[$current]=0
        fi
    elif grep "^[0-9]" <<<"$line" >/dev/null; then
        for i in $(cut -f 1,2 <<< "$line"); do
            map[$current]=$((map[$current] + $i))
        done
    fi
done <<< "$(git log --numstat --pretty="%aN")"

for i in "${!map[@]}"; do
    echo -e "$i:${map[$i]}"
done | sort -nr -t ":" -k 2 | column -t -s ":"

You can use Except:

List<car> list1 = GetTheList();
List<car> list2 = GetSomeOtherList();
List<car> result = list2.Except(list1).ToList();

You probably don't even need those temporary variables:

List<car> result = GetSomeOtherList().Except(GetTheList()).ToList();

Note that Except does not modify either list - it creates a new list with the result.

The query either returned no rows or is erroneus, thus FALSE is returned. Change it to

if (!$dbc || mysqli_num_rows($dbc) == 0)

mysqli_num_rows:

Return Values

Returns TRUE on success or FALSE on failure. For SELECT, SHOW, DESCRIBE or EXPLAIN mysqli_query() will return a result object.

How about this?

 "1,112".delete(',').to_i

Here is pure JavaScript approach:

var form = document.querySelector('form');
var data = new FormData(form);
var req = new XMLHttpRequest();
req.send(data);

Though it seems to be working only for POST requests.

https://developer.mozilla.org/en-US/docs/Web/API/FormData

HTML

<input type="checkbox" id="checkme"/><input type="submit" name="sendNewSms" class="inputButton" id="sendNewSms" value=" Send " />

JS

var checker = document.getElementById('checkme');
var sendbtn = document.getElementById('sendNewSms');
checker.onchange = function() {
  sendbtn.disabled = !!this.checked;
};

DEMO

Precision is the main difference.

Float - 7 digits (32 bit)

Double-15-16 digits (64 bit)

Decimal -28-29 significant digits (128 bit)

Decimals have much higher precision and are usually used within financial applications that require a high degree of accuracy. Decimals are much slower (up to 20X times in some tests) than a double/float.

Decimals and Floats/Doubles cannot be compared without a cast whereas Floats and Doubles can. Decimals also allow the encoding or trailing zeros.

float flt = 1F/3;
double dbl = 1D/3;
decimal dcm = 1M/3;
Console.WriteLine("float: {0} double: {1} decimal: {2}", flt, dbl, dcm);

Result :

float: 0.3333333  
double: 0.333333333333333  
decimal: 0.3333333333333333333333333333

You can use scroll-behavior: smooth; to get this done without Javascript

https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-behavior

In Access, you will probably find a Join is quicker unless your tables are very small:

SELECT DISTINCT Table1.Column1
FROM Table1 
LEFT JOIN Table2
ON Table1.Column1 = Table2.Column1  
WHERE Table2.Column1 Is Null

This will exclude from the list all records with a match in Table2.

This regex is very short and sweet for working.

/^([+]\d{2})?\d{10}$/

Ex: +910123456789 or 0123456789

-> /^ and $/ is for starting and ending
-> The ? mark is used for conditional formatting where before question mark is available or not it will work
-> ([+]\d{2}) this indicates that the + sign with two digits '\d{2}' here you can place digit as per country
-> after the ? mark '\d{10}' this says that the digits must be 10 of length change as per your country mobile number length

This is how this regex for mobile number is working.
+ sign is used for world wide matching of number.

if you want to add the space between than you can use the

[ ]

here the square bracket represents the character sequence and a space is character for searching in regex.
for the space separated digit you can use this regex

/^([+]\d{2}[ ])?\d{10}$/

Ex: +91 0123456789

Thanks ask any question if you have.

Maybe Start-Transcript would work for you. First stop it if it's already running, then start it, and stop it when done.

$ErrorActionPreference="SilentlyContinue"
Stop-Transcript | out-null
$ErrorActionPreference = "Continue"
Start-Transcript -path C:\output.txt -append
# Do some stuff
Stop-Transcript

You can also have this running while working on stuff and have it saving your command line sessions for later reference.

If you want to completely suppress the error when attempting to stop a transcript that is not transcribing, you could do this:

$ErrorActionPreference="SilentlyContinue"
Stop-Transcript | out-null
$ErrorActionPreference = "Continue" # or "Stop"

Disable the keyboard (API 11 to current)

This is the best answer I have found so far to disable the keyboard (and I have seen a lot of them).

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { // API 21
    editText.setShowSoftInputOnFocus(false);
} else { // API 11-20
    editText.setTextIsSelectable(true);
}

There is no need to use reflection or set the InputType to null.

Re-enable the keyboard

Here is how you re-enable the keyboard if needed.

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { // API 21
    editText.setShowSoftInputOnFocus(true);
} else { // API 11-20
    editText.setTextIsSelectable(false);
    editText.setFocusable(true);
    editText.setFocusableInTouchMode(true);
    editText.setClickable(true);
    editText.setLongClickable(true);
    editText.setMovementMethod(ArrowKeyMovementMethod.getInstance());
    editText.setText(editText.getText(), TextView.BufferType.SPANNABLE);
}

See this Q&A for why the complicated pre API 21 version is needed to undo setTextIsSelectable(true):

• How to enable keyboard on touch after disabling it with setTextIsSelectable

This answer needs to be more thoroughly tested.

I have tested the setShowSoftInputOnFocus on higher API devices, but after @androiddeveloper's comment below, I see that this needs to be more thoroughly tested.

Here is some cut-and-paste code to help test this answer. If you can confirm that it does or doesn't work for API 11 to 20, please leave a comment. I don't have any API 11-20 devices and my emulator is having problems.

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    android:background="@android:color/white">

    <EditText
        android:id="@+id/editText"
        android:textColor="@android:color/black"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <Button
        android:text="enable keyboard"
        android:onClick="enableButtonClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <Button
        android:text="disable keyboard"
        android:onClick="disableButtonClick"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
</LinearLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    EditText editText;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        editText = (EditText) findViewById(R.id.editText);
    }

    // when keyboard is hidden it should appear when editText is clicked
    public void enableButtonClick(View view) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { // API 21
            editText.setShowSoftInputOnFocus(true);
        } else { // API 11-20
            editText.setTextIsSelectable(false);
            editText.setFocusable(true);
            editText.setFocusableInTouchMode(true);
            editText.setClickable(true);
            editText.setLongClickable(true);
            editText.setMovementMethod(ArrowKeyMovementMethod.getInstance());
            editText.setText(editText.getText(), TextView.BufferType.SPANNABLE);
        }
    }

    // when keyboard is hidden it shouldn't respond when editText is clicked
    public void disableButtonClick(View view) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { // API 21
            editText.setShowSoftInputOnFocus(false);
        } else { // API 11-20
            editText.setTextIsSelectable(true);
        }
    }
}

Based on this fantastic post

http://code.activestate.com/recipes/217212-treepy-graphically-displays-the-directory-structur/

Here es a refinement to behave exactly like

http://linux.die.net/man/1/tree

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# tree.py
#
# Written by Doug Dahms
#
# Prints the tree structure for the path specified on the command line

from os import listdir, sep
from os.path import abspath, basename, isdir
from sys import argv

def tree(dir, padding, print_files=False, isLast=False, isFirst=False):
    if isFirst:
        print padding.decode('utf8')[:-1].encode('utf8') + dir
    else:
        if isLast:
            print padding.decode('utf8')[:-1].encode('utf8') + '+-- ' + basename(abspath(dir))
        else:
            print padding.decode('utf8')[:-1].encode('utf8') + '+-- ' + basename(abspath(dir))
    files = []
    if print_files:
        files = listdir(dir)
    else:
        files = [x for x in listdir(dir) if isdir(dir + sep + x)]
    if not isFirst:
        padding = padding + '   '
    files = sorted(files, key=lambda s: s.lower())
    count = 0
    last = len(files) - 1
    for i, file in enumerate(files):
        count += 1
        path = dir + sep + file
        isLast = i == last
        if isdir(path):
            if count == len(files):
                if isFirst:
                    tree(path, padding, print_files, isLast, False)
                else:
                    tree(path, padding + ' ', print_files, isLast, False)
            else:
                tree(path, padding + '¦', print_files, isLast, False)
        else:
            if isLast:
                print padding + '+-- ' + file
            else:
                print padding + '+-- ' + file

def usage():
    return '''Usage: %s [-f] 
Print tree structure of path specified.
Options:
-f      Print files as well as directories
PATH    Path to process''' % basename(argv[0])

def main():
    if len(argv) == 1:
        print usage()
    elif len(argv) == 2:
        # print just directories
        path = argv[1]
        if isdir(path):
            tree(path, '', False, False, True)
        else:
            print 'ERROR: \'' + path + '\' is not a directory'
    elif len(argv) == 3 and argv[1] == '-f':
        # print directories and files
        path = argv[2]
        if isdir(path):
            tree(path, '', True, False, True)
        else:
            print 'ERROR: \'' + path + '\' is not a directory'
    else:
        print usage()

if __name__ == '__main__':
    main()

Subscript out of Range error occurs when you try to reference an Index for a collection that is invalid.

Most likely, the index in Windows does not actually include .xls. The index for the window should be the same as the name of the workbook displayed in the title bar of Excel.

As a guess, I would try using this:

Windows("Data Sheet - " & ComboBox_Month.Value & " " & TextBox_Year.Value).Activate

targetList = list1.Concat(list2).ToList();

It's working fine I think so. As previously said, Concat returns a new sequence and while converting the result to List, it does the job perfectly.

I use Windows Server 2012 for hosting for a long time and it just stop working after a more than years without any problem. My solution was to add public IP address of the server to list of relays and enabled Windows Integrated Authentication.

I just made two changes and I don't which help.

Go to IIS 6 Manager

Select properties of SMTP server

On tab Access, select Relays

Add your public IP address

Close the dialog and on the same tab click to Authentication button.

Add Integrated Windows Authentication

Maybe some step is not needed, but it works.

strtok is an overlooked function for this sort of thing. It is meant to be quite fast.

$s = '233718_This_is_a_string';
$firstPart = strtok( $s, '_' );
$allTheRest = strtok( '' ); 

Empty string like this will force the rest of the string to be returned.

NB if there was nothing at all after the '_' you would get a FALSE value for $allTheRest which, as stated in the documentation, must be tested with ===, to distinguish from other falsy values.

To find a div of a certain class that contains a span at any depth containing certain text, try:

//div[contains(@class, 'measure-tab') and contains(.//span, 'someText')]

That said, this solution looks extremely fragile. If the table happens to contain a span with the text you're looking for, the div containing the table will be matched, too. I'd suggest to find a more robust way of filtering the elements. For example by using IDs or top-level document structure.

Working with a non-relational database (IDMS anyone?) over an ODBC connection qualifies as one of those times where cursors and dynamic SQL seems the only route.

select * from a where a=1 and b in (1,2)

takes 45 minutes to respond while re-written to use keysets without the in clause will run in under 1 second:

select * from a where (a=1 and b=1)
union all
select * from a where (a=1 and b=2)

If the in statement for column B contains 1145 rows, using a cursor to create indidivudal statements and execute them as dynamic SQL is far faster than using the in clause. Silly hey?

And yes, there's no time in a relational database that cursor's should be used. I just can't believe I've come across an instance where a cursor loop is several magnitudes quicker.

It seems that Luiggi Mendoza and joey rohan both already answered this, but I think it can be clarified a little.

You can write it as a single if statement:

if (inventory.contains("bread") && !inventory.contains("water")) {
    // do something
}

I would use the insert function, something like:

vector<int> a, b;
//fill with data
b.insert(b.end(), a.begin(), a.end());

Storing previous url in a session variable is bad, because the user might right click on multiple pages and then come back and save.

unless you save the previous url in the session variable to a hidden field in the form and after save header( "Location: save URL of calling page" );

You can also dump elasticsearch data in JSON format by http request: https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-scroll.html
CURL -XPOST 'https://ES/INDEX/_search?scroll=10m'
CURL -XPOST 'https://ES/_search/scroll' -d '{"scroll": "10m", "scroll_id": "ID"}'

The solution which worked for me is, when you get the message:

Waiting for HOME ('android.process.acore') to be launched...

Wait for few seconds and then right click on the project and click run as Android application once again.

Check out in here, worked well for me, with no limits in the output size, no omitted elements, even beyond 1000

Exporting large lists in R as .txt or .csv

Just add this line

sFileName = "C:\someotherfilelocation"

right before this line

Open sFileName For Output As iFileNum

The idea is to open and write to a different file than the one you read earlier (C:\filelocation).

If you want to get fancy and show a real "Save As" dialog box, you could do this instead:

sFileName = Application.GetSaveAsFilename()

This isn't really possible with pure grep, at least not generally.

But if your pattern is suitable, you may be able to use grep multiple times within a pipeline to first reduce your line to a known format, and then to extract just the bit you want. (Although tools like cut and sed are far better at this).

Suppose for the sake of argument that your pattern was a bit simpler: [0-9]+_([a-z]+)_ You could extract this like so:

echo $name | grep -Ei '[0-9]+_[a-z]+_' | grep -oEi '[a-z]+'

The first grep would remove any lines that didn't match your overall patern, the second grep (which has --only-matching specified) would display the alpha portion of the name. This only works because the pattern is suitable: "alpha portion" is specific enough to pull out what you want.

(Aside: Personally I'd use grep + cut to achieve what you are after: echo $name | grep {pattern} | cut -d _ -f 2. This gets cut to parse the line into fields by splitting on the delimiter _, and returns just field 2 (field numbers start at 1)).

Unix philosophy is to have tools which do one thing, and do it well, and combine them to achieve non-trivial tasks, so I'd argue that grep + sed etc is a more Unixy way of doing things :-)

In my case, this occurred because the password in the server config file was commented out.

Open the server config file: # sudo vim /etc/zabbix/zabbix-server.conf

Scroll down to db user and below there will be the password with a # commenting out. Remove the hash and insert your DB password.

What about this?

(function($) { 
   $(function() {
     // more code using $ as alias to jQuery
     // will be fired when document is ready
   });
})(jQuery);

Try this

<input type="text"/>

It will display same in all cross browser like mozilla , chrome and internet explorer.

<style>
    input{
       border:2px solid #FF0000;
    }
</style>

Dont add style inline because its not good practise, use class to add style for your input box.

There is no DrawCircle method; use DrawEllipse instead. I have a static class with handy graphics extension methods. The following ones draw and fill circles. They are wrappers around DrawEllipse and FillEllipse:

public static class GraphicsExtensions
{
    public static void DrawCircle(this Graphics g, Pen pen,
                                  float centerX, float centerY, float radius)
    {
        g.DrawEllipse(pen, centerX - radius, centerY - radius,
                      radius + radius, radius + radius);
    }

    public static void FillCircle(this Graphics g, Brush brush,
                                  float centerX, float centerY, float radius)
    {
        g.FillEllipse(brush, centerX - radius, centerY - radius,
                      radius + radius, radius + radius);
    }
}

You can call them like this:

g.FillCircle(myBrush, centerX, centerY, radius);
g.DrawCircle(myPen, centerX, centerY, radius);

You may also want to check out mysql_fetch_array(), as in:

$rs = mysql_query($sql);
while ($row = mysql_fetch_array($rs)) {
//$row[0] = 'First Field';
//$row['first_field'] = 'First Field';
}

To complete the work of @VFDan, I benchmarked the 3 methods: the accepted one (custom loop), reduce, and find(max(arr)) on an array of 10000 floats.

Results on chromimum 85 linux (higher is better):

• custom loop: 100%
• reduce: 94.36%
• indexOf(max): 70%

Results on firefox 80 linux (higher is better):

• custom loop: 100%
• reduce: 96.39%
• indexOf(max): 31.16%

Conclusion:

If you need your code to run fast, don't use indexOf(max). reduce is ok but use the custom loop if you need the best performances.

You can run this benchmark on other browser using this link: https://jsben.ch/wkd4c

Here is another way to loop through XML elements using JDOM.

        List<Element> nodeNodes = inputNode.getChildren();
        if (nodeNodes != null) {
            for (Element nodeNode : nodeNodes) {
                List<Element> elements = nodeNode.getChildren(elementName);
                if (elements != null) {
                    elements.size();
                    nodeNodes.removeAll(elements);
                }
            }

Presuming 17px header height

List css:

height: 100%;
padding-top: 17px;

Header css:

height: 17px;
float: left;
width: 100%;

Update to angular 4.X.X, there is a new way to mark an option selected:

<select [compareWith]="byId" [(ngModel)]="selectedItem">
  <option *ngFor="let item of items" [ngValue]="item">{{item.name}}
  </option>
</select>

byId(item1: ItemModel, item2: ItemModel) {
  return item1.id === item2.id;
}

Some tutorial here

Simpler and Easy fix to avoid confusions..

For Windows users to use multiple or different git accounts for different projects.

Following steps: Go Control Panel and Search for Credential Manager. Then Go to Credential Manager -> Windows Credentials

Now remove the git:https//github.com node under Generic Credentials Heading

This will remove the current credentials. Now you can add any project through git pull it will ask for username and password.

When you face any issue with other account do the same process.

Thanks

refer to image

When I run your program, it doesn't even get me to the point where I can enter the second date.

This is simpler and less error prone.

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.text.SimpleDateFormat;
import java.util.Date;

public class Test001 {

    public static void main(String[] args) throws Exception {

        BufferedReader br = null;

        br = new BufferedReader(new InputStreamReader(System.in));
        SimpleDateFormat sdf = new SimpleDateFormat("dd MM yyyy");

        System.out.println("Insert first date : ");
        Date dt1 = sdf.parse(br.readLine().trim());

        System.out.println("Insert second date : ");
        Date dt2 = sdf.parse(br.readLine().trim());

        long diff = dt2.getTime() - dt1.getTime();

        System.out.println("Days: " + diff / 1000L / 60L / 60L / 24L);

        if (br != null) {
            br.close();
        }
    }
}

There are multiple ways

return \Response::json(['hello' => $value], STATUS_CODE);

return response()->json(['hello' => $value], STATUS_CODE);

where STATUS_CODE is your HTTP status code you want to send. Both are identical.

if you are using Eloquent model, then simple return will also be auto converted in JSON by default like,

return User::all();

you can use it like this as i do it for login and manny different things

class Login extends Component {
  constructor(props){
    super(props);
    this.login=this.login.bind(this)
  }


  login(){
this.props.history.push('/dashboard');
  }


render() {

    return (

   <div>
    <button onClick={this.login}>login</login>
    </div>

)

There isn't a definite list, it's up to the browser. The only standard we have is DOM Level 2 HTML, according to which the only elements that have a focus() method are HTMLInputElement, HTMLSelectElement, HTMLTextAreaElement and HTMLAnchorElement. This notably omits HTMLButtonElement and HTMLAreaElement.

Today's browsers define focus() on HTMLElement, but an element won't actually take focus unless it's one of:

• HTMLAnchorElement/HTMLAreaElement with an href
• HTMLInputElement/HTMLSelectElement/HTMLTextAreaElement/HTMLButtonElement but not with disabled (IE actually gives you an error if you try), and file uploads have unusual behaviour for security reasons
• HTMLIFrameElement (though focusing it doesn't do anything useful). Other embedding elements also, maybe, I haven't tested them all.
• Any element with a tabindex

There are likely to be other subtle exceptions and additions to this behaviour depending on browser.

In SQL Server, you would say:

Select name from users
UNION [ALL]
SELECT 'JASON'

In Oracle, you would say

Select name from user
UNION [ALL]
Select 'JASON' from DUAL

<div class = "solTitle"> <a href = "#"  id = "solution0" onClick = "openSolution();">Solution0 </a></div> <br>

<div class= "solTitle"> <a href = "#"  id = "solution1" onClick = "openSolution();">Solution1 </a></div> <br>



$(document).ready(function(){
    $('.solTitle a').click(function(e) {
        e.preventDefault();
        alert('here in');
         var divId = 'summary' +$(this).attr('id');

        document.getElementById(divId).className = ''; /* or $('#'+divid).removeAttr('class'); */

    });
 });

I changed few things:

1. remove the onclick attr and bind click event inside the document.ready
2. changed solTitle to be an ID to a CLASS: id cant be repeated

I tried the other answers here as well as a few others. I even stopped and restarted the SQL services. Nothing worked.

However, restarting my computer did work.

Kindly try below on postman :-

In header section example work for me..

Authorization : JWT eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.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.BkyB0LjKB4FIsCtnM5FcpcBLvKed_j7rCCxZddwiYnU

urllib has been split up in Python 3.

The urllib.urlencode() function is now urllib.parse.urlencode(),

the urllib.urlopen() function is now urllib.request.urlopen().

This doesn't work in IE8 but might be an option to consider. It is primarily useful if you do not want to specify a width.

.element
{
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

It's very simple. Git doesn't care about what's the name of its directory. It only cares what's inside. So you can simply do:

# copy the directory into newrepo dir that exists already (else create it)
$ cp -r gitrepo1 newrepo

# remove .git from old repo to delete all history and anything git from it
$ rm -rf gitrepo1/.git

Note that the copy is quite expensive if the repository is large and with a long history. You can avoid it easily too:

# move the directory instead
$ mv gitrepo1 newrepo

# make a copy of the latest version
# Either:
$ mkdir gitrepo1; cp -r newrepo/* gitrepo1/  # doesn't copy .gitignore (and other hidden files)

# Or:
$ git clone --depth 1 newrepo gitrepo1; rm -rf gitrepo1/.git

# Or (look further here: http://stackoverflow.com/q/1209999/912144)
$ git archive --format=tar --remote=<repository URL> HEAD | tar xf -

Once you create newrepo, the destination to put gitrepo1 could be anywhere, even inside newrepo if you want it. It doesn't change the procedure, just the path you are writing gitrepo1 back.

I think I also have this problem, I was trying to make calendar visible after clicking a button but the page keeps refreshing after clicking the button

MaintainScrollPositionOnPostBack="true"

This actually answered my problem.

I cant vote or comment, I just joined SO today

Change the checkboxes so that the name includes the index inside the brackets:

<input type="checkbox" class="checkbox_veh" id="checkbox_addveh<?php echo $i; ?>" <?php if ($vehicle_feature[$i]->check) echo "checked"; ?> name="feature[<?php echo $i; ?>]" value="<?php echo $vehicle_feature[$i]->id; ?>"> 

The checkboxes that aren't checked are never submitted. The boxes that are checked get submitted, but they get numbered consecutively from 0, and won't have the same indexes as the other corresponding input fields.

You should use setStroke to set a stroke of the Graphics2D object.

The example at http://www.java2s.com gives you some code examples.

The following code produces the image below:

import java.awt.*;
import java.awt.geom.Line2D;
import javax.swing.*;

public class FrameTest {
    public static void main(String[] args) {
        JFrame jf = new JFrame("Demo");
        Container cp = jf.getContentPane();
        cp.add(new JComponent() {
            public void paintComponent(Graphics g) {
                Graphics2D g2 = (Graphics2D) g;
                g2.setStroke(new BasicStroke(10));
                g2.draw(new Line2D.Float(30, 20, 80, 90));
            }
        });
        jf.setSize(300, 200);
        jf.setVisible(true);
    }
}

(Note that the setStroke method is not available in the Graphics object. You have to cast it to a Graphics2D object.)

This post has been rewritten as an article here.

Make use of Jackson JSON Parser

ObjectMapper mapper = new ObjectMapper();
Map<String,Object> map = mapper.readValue(inputStreamObject,Map.class);

If you want specifically a JSONObject then you can convert the map

JSONObject json = new JSONObject(map);

Refer this for the usage of JSONObject constructor http://stleary.github.io/JSON-java/index.html

I found a better solution.

XML: (design.xml)

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent">
  <FrameLayout android:layout_width="90px" android:layout_height="90px">
    <RelativeLayout android:id="@+id/container" android:layout_width="fill_parent" android:layout_height="fill_parent">        
    </RelativeLayout>
</FrameLayout>
</FrameLayout>

Java Code:

public class Example extends Activity {
  private RelativeLayout container;
  private int currentX;
  private int currentY;

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.design);

    container = (RelativeLayout)findViewById(R.id.container);

    int top = 0;
    int left = 0;

    ImageView image1 = ...
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(left, top, 0, 0);               
    container.addView(image1, layoutParams);

    ImageView image2 = ...
    left+= 100;
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(left, top, 0, 0);               
    container.addView(image2, layoutParams);

    ImageView image3 = ...
    left= 0;
    top+= 100;
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(left, top, 0, 0);               
    container.addView(image3, layoutParams);

    ImageView image4 = ...
    left+= 100;     
    RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(left, top, 0, 0);               
    container.addView(image4, layoutParams);
  }     

  @Override 
  public boolean onTouchEvent(MotionEvent event) {
    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN: {
            currentX = (int) event.getRawX();
            currentY = (int) event.getRawY();
            break;
        }

        case MotionEvent.ACTION_MOVE: {
            int x2 = (int) event.getRawX();
            int y2 = (int) event.getRawY();
            container.scrollBy(currentX - x2 , currentY - y2);
            currentX = x2;
            currentY = y2;
            break;
        }   
        case MotionEvent.ACTION_UP: {
            break;
        }
    }
      return true; 
  }
}

That's works!!!

If you want to load other layout or control, the structure is the same.

You can use Singleton when implementing the State pattern (in the manner shown in the GoF book). This is because the concrete State classes have no state of their own, and perform their actions in terms of a context class.

You can also make Abstract Factory a singleton.

You need to go here https://security.google.com/settings/security/apppasswords

then select Gmail and then select device. then click on Generate. Simply Copy & Paste password which is generated by Google.

python script_name.py > saveit.txt

Because this scheme uses shell command lines to start Python programs, all the usual shell syntax applies. For instance, By this, we can route the printed output of a Python script to a file to save it.

You can use COALESCE in conjunction with NULLIF for a short, efficient solution:

COALESCE( NULLIF(yourField,'') , '0' )

The NULLIF function will return null if yourField is equal to the second value ('' in the example), making the COALESCE function fully working on all cases:

                 QUERY                     |                RESULT 
---------------------------------------------------------------------------------
SELECT COALESCE(NULLIF(null  ,''),'0')     |                 '0'
SELECT COALESCE(NULLIF(''    ,''),'0')     |                 '0'
SELECT COALESCE(NULLIF('foo' ,''),'0')     |                 'foo'

I do not like transformations to have any more info than needed. So instead of restating the keys, I simply state the condition and intention. It is much easier to see the intention when done like this, at least IMO. Also, I try and put all the xdt attributes first to indicate to the reader, these are transformations and not new things being defined.

<appSettings>
  <add xdt:Locator="Condition(@key='developmentModeUserId')" xdt:Transform="Remove" />
  <add xdt:Locator="Condition(@key='developmentMode')" xdt:Transform="SetAttributes"
       value="false"/>
</appSettings>

In the above it is much easier to see that the first one is removing the element. The 2nd one is setting attributes. It will set/replace any attributes you define here. In this case it will simply set value to false.

I had a similar problem. In my case I had forgotten to set the increment_by value in the database to be the same like the one used by the cache_size and allocationSize. (The arrows point to the mentioned attributes)

SQL:

CREATED         26.07.16
LAST_DDL_TIME   26.07.16
SEQUENCE_OWNER  MY
SEQUENCE_NAME   MY_ID_SEQ
MIN_VALUE       1
MAX_VALUE       9999999999999999999999999999
INCREMENT_BY    20 <-
CYCLE_FLAG      N
ORDER_FLAG      N
CACHE_SIZE      20 <-
LAST_NUMBER     180

Java:

@SequenceGenerator(name = "mySG", schema = "my", 
sequenceName = "my_id_seq", allocationSize = 20 <-)

As denoted in other answers, sets are data structures (and mathematical concepts) that do not preserve the element order -

However, by using a combination of sets and dictionaries, it is possible that you can achieve wathever you want - try using these snippets:

# save the element order in a dict:
x_dict = dict(x,y for y, x in enumerate(my_list) )
x_set = set(my_list)
#perform desired set operations
...
#retrieve ordered list from the set:
new_list = [None] * len(new_set)
for element in new_set:
   new_list[x_dict[element]] = element

• I would suggest you to extract the table using tabula.
• Pass your pdf as an argument to the tabula api and it will return you the table in the form of dataframe.
• Each table in your pdf is returned as one dataframe.
• The table will be returned in a list of dataframea, for working with dataframe you need pandas.

This is my code for extracting pdf.

import pandas as pd
import tabula
file = "filename.pdf"
path = 'enter your directory path here'  + file
df = tabula.read_pdf(path, pages = '1', multiple_tables = True)
print(df)

Please refer to this repo of mine for more details.

Firstly, you should check if your image column is BLOB type!

I don't know anything about your SQL table, but if I'll try to make my own as an example.

We got fields id (int), image (blob) and image_name (varchar(64)).

So the code should look like this (assume ID is always '1' and let's use this mysql_query):

$image = addslashes(file_get_contents($_FILES['image']['tmp_name'])); //SQL Injection defence!
$image_name = addslashes($_FILES['image']['name']);
$sql = "INSERT INTO `product_images` (`id`, `image`, `image_name`) VALUES ('1', '{$image}', '{$image_name}')";
if (!mysql_query($sql)) { // Error handling
    echo "Something went wrong! :("; 
}

You are doing it wrong in many ways. Don't use mysql functions - they are deprecated! Use PDO or MySQLi. You should also think about storing files locations on disk. Using MySQL for storing images is thought to be Bad Idea™. Handling SQL table with big data like images can be problematic.

Also your HTML form is out of standards. It should look like this:

<form action="insert_product.php" method="POST" enctype="multipart/form-data">
    <label>File: </label><input type="file" name="image" />
    <input type="submit" />
</form>

Sidenote:

When dealing with files and storing them as a BLOB, the data must be escaped using mysql_real_escape_string(), otherwise it will result in a syntax error.

If you have a case as simple as mine was you can do the following:

1. Create a Dockerfile that extends the base image of your container
2. I assume that your volumes are mapped to your filesystem, so you can just add those files/folders to your image using ADD folder destination
3. Done!

For example, assuming you have the data from the volumes on your home directory, for example at /home/mydata you can run the following:

DOCKERFILE=/home/dockerfile.bk-myimage
docker build --rm --no-cache -t $IMAGENAME:$TAG -f $DOCKERFILE /home/pirate

Where your DOCKERFILE points to a file like this:

FROM user/myimage
MAINTAINER Danielo Rodríguez Rivero <[email protected]>

WORKDIR /opt/data
ADD mydata .

The rest of the stuff is inherited from the base image. You can now push that image to docker cloud and your users will have the data available directly on their containers

Added this If loop within the for loop to exclude the users location pin from this method (required in my case, and maybe others)

if (![annotation isKindOfClass:[MKUserLocation class]] ) {

//Code Here...

}

You can make this bit more cleaner by using:

$http.get(url)
    .then(function (response) {
        console.log('get',response)
    })
    .catch(function (data) {
        // Handle error here
    });

Similar to @this.lau_ answer, different approach.

I think create a custom EditorTemplate is not good solution, beause you need to care about many possible tepmlates for different cases: strings, numsers, comboboxes and so on. Other solution is custom extention to HtmlHelper.

Model:

public class MyViewModel
{
    [PlaceHolder("Enter title here")]
    public string Title { get; set; }
}

Html helper extension:

   public static MvcHtmlString BsEditorFor<TModel, TValue>(this HtmlHelper<TModel> htmlHelper,
    Expression<Func<TModel, TValue>> expression, string htmlClass = "")
{
    var modelMetadata = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
    var metadata = modelMetadata;

    var viewData = new
    {
        HtmlAttributes = new
            {
                @class = htmlClass,
                placeholder = metadata.Watermark,
            }
    };
    return htmlHelper.EditorFor(expression, viewData);

}

A corresponding view:

@Html.BsEditorFor(x => x.Title)

You can use regexp to do this:

import re
patt = re.compile("[^\t]+")


s = "a\t\tbcde\t\tef"
patt.findall(s)
['a', 'bcde', 'ef']  

It is printing twice because you are calling printf twice, once in the execution of your program and once in the fork. Try taking your fork() out of the printf call.

In @Patrick McMahon's response, the second comment here ( $first_condition is false and $second_condition is true ) is not entirely accurate:

<?php if($first_condition): ?>
  /*$first_condition is true*/
  <div class="first-condition-true">First Condition is true</div>
<?php elseif($second_condition): ?>
  /*$first_condition is false and $second_condition is true*/
  <div class="second-condition-true">Second Condition is true</div>
<?php else: ?>
  /*$first_condition and $second_condition are false*/
  <div class="first-and-second-condition-false">Conditions are false</div>
<?php endif; ?>

Elseif fires whether $first_condition is true or false, as do additional elseif statements, if there are multiple.

I am no PHP expert, so I don't know whether that's the correct way to say IF this OR that ELSE that or if there is another/better way to code it in PHP, but this would be an important distinction to those looking for OR conditions versus ELSE conditions.

Source is w3schools.com and my own experience.

Try this to get type parameters for generic types:

public static string CSharpName(this Type type)
{
    var sb = new StringBuilder();
    var name = type.Name;
    if (!type.IsGenericType) return name;
    sb.Append(name.Substring(0, name.IndexOf('`')));
    sb.Append("<");
    sb.Append(string.Join(", ", type.GetGenericArguments()
                                    .Select(t => t.CSharpName())));
    sb.Append(">");
    return sb.ToString();
}

Maybe not the best solution (due to the recursion), but it works. Outputs look like:

Dictionary<String, Object>

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

Update March 2013

Git 1.8.2 added the possibility to track branches.

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

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

# update your submodule
git submodule update --remote 

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

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

Note:

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

See git submodule man page:

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

See commit b928922727d6691a3bdc28160f93f25712c565f6:

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

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

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

reduces to

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

This means that future calls to

$ git submodule update --remote ...

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

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

Original answer (February 2012):

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

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

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

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

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

Other alternatives are detailed here.

following should be your right solution

ren somefile.txt  somefile_%time:~0,2%%time:~3,2%-%DATE:/=%.txt

I don't understand why other answers are about relative coordinates change, not absolute like OP asked in title.

$("#Friends").animate( {top:
  "-=" + (parseInt($("#Friends").css("top")) - 100) + "px"
} );

Python Class for Trie

Trie Data Structure can be used to store data in O(L) where L is the length of the string so for inserting N strings time complexity would be O(NL) the string can be searched in O(L) only same goes for deletion.

Can be clone from https://github.com/Parikshit22/pytrie.git

class Node:
    def __init__(self):
        self.children = [None]*26
        self.isend = False
        
class trie:
    def __init__(self,):
        self.__root = Node()
        
    def __len__(self,):
        return len(self.search_byprefix(''))
    
    def __str__(self):
        ll =  self.search_byprefix('')
        string = ''
        for i in ll:
            string+=i
            string+='\n'
        return string
        
    def chartoint(self,character):
        return ord(character)-ord('a')
    
    def remove(self,string):
        ptr = self.__root
        length = len(string)
        for idx in range(length):
            i = self.chartoint(string[idx])
            if ptr.children[i] is not None:
                ptr = ptr.children[i]
            else:
                raise ValueError("Keyword doesn't exist in trie")
        if ptr.isend is not True:
            raise ValueError("Keyword doesn't exist in trie")
        ptr.isend = False
        return
    
    def insert(self,string):
        ptr = self.__root
        length = len(string)
        for idx in range(length):
            i = self.chartoint(string[idx])
            if ptr.children[i] is not None:
                ptr = ptr.children[i]
            else:
                ptr.children[i] = Node()
                ptr = ptr.children[i]
        ptr.isend = True
        
    def search(self,string):
        ptr = self.__root
        length = len(string)
        for idx in range(length):
            i = self.chartoint(string[idx])
            if ptr.children[i] is not None:
                ptr = ptr.children[i]
            else:
                return False
        if ptr.isend is not True:
            return False
        return True
    
    def __getall(self,ptr,key,key_list):
        if ptr is None:
            key_list.append(key)
            return
        if ptr.isend==True:
            key_list.append(key)
        for i in range(26):
            if ptr.children[i]  is not None:
                self.__getall(ptr.children[i],key+chr(ord('a')+i),key_list)
        
    def search_byprefix(self,key):
        ptr = self.__root
        key_list = []
        length = len(key)
        for idx in range(length):
            i = self.chartoint(key[idx])
            if ptr.children[i] is not None:
                ptr = ptr.children[i]
            else:
                return None
        
        self.__getall(ptr,key,key_list)
        return key_list
        

t = trie()
t.insert("shubham")
t.insert("shubhi")
t.insert("minhaj")
t.insert("parikshit")
t.insert("pari")
t.insert("shubh")
t.insert("minakshi")

print(t.search("minhaj"))
print(t.search("shubhk"))
print(t.search_byprefix('m'))
print(len(t))
print(t.remove("minhaj"))
print(t)

Code Oputpt

True
False
['minakshi', 'minhaj']
7
minakshi
minhajsir
pari
parikshit
shubh
shubham
shubhi

Firebug is great, but Safari provides its own built-in development tools.

If you haven't already tried Safari's development kit, go to Safari-->Preferences-->Advanced, and check the box next to "Show Develop menu in menu bar".

Once you have the Develop menu enabled, you can use the Web Inspector to get a lot of the same functionality that Firebug provides.

Use this JsonKnownTypes, it's very similar way to use, it just add discriminator to json:

[JsonConverter(typeof(JsonKnownTypeConverter<BaseClass>))]
[JsonKnownType(typeof(Base), "base")]
[JsonKnownType(typeof(Derived), "derived")]
public class Base
{
    public string Name;
}
public class Derived : Base
{
    public string Something;
}

Now when you serialize object in json will be add "$type" with "base" and "derived" value and it will be use for deserialize

Serialized list example:

[
    {"Name":"some name", "$type":"base"},
    {"Name":"some name", "Something":"something", "$type":"derived"}
]

The CD / DVD wanted to be on the IDE controller on my system, not the SATA controller

Manually editing firefox's settings is the way to go, but it's inconvenient when you need to do it often.

Instead, you can install an add-on that will do it for you in one click.

I use CORS everywhere, which works great for me.

Here is a link to the installer

Bootstrap3 users try the given below code. It worked for me.

function close_toggle() {
   if ($(window).width() <= 768) {
      $('.nav a').on('click', function(){
          $(".navbar-toggle").click();
      });
   }
   else {
     $('.nav a').off('click');
   }
}
close_toggle();

$(window).resize(close_toggle);

You can replace 0 with NA only in numeric fields (i.e. excluding things like factors), but it works on a column-by-column basis:

col[col == 0 & is.numeric(col)] <- NA

With a function, you can apply this to your whole data frame:

changetoNA <- function(colnum,df) {
    col <- df[,colnum]
    if (is.numeric(col)) {  #edit: verifying column is numeric
        col[col == -1 & is.numeric(col)] <- NA
    }
    return(col)
}
df <- data.frame(sapply(1:5, changetoNA, df))

Although you could replace the 1:5 with the number of columns in your data frame, or with 1:ncol(df).

Nobody seems to be explaining the difference between an array and an object.

[] is declaring an array.

{} is declaring an object.

An array has all the features of an object with additional features (you can think of an array like a sub-class of an object) where additional methods and capabilities are added in the Array sub-class. In fact, typeof [] === "object" to further show you that an array is an object.

The additional features consist of a magic .length property that keeps track of the number of items in the array and a whole slew of methods for operating on the array such as .push(), .pop(), .slice(), .splice(), etc... You can see a list of array methods here.

An object gives you the ability to associate a property name with a value as in:

var x = {};
x.foo = 3;
x["whatever"] = 10;
console.log(x.foo);      // shows 3
console.log(x.whatever); // shows 10

Object properties can be accessed either via the x.foo syntax or via the array-like syntax x["foo"]. The advantage of the latter syntax is that you can use a variable as the property name like x[myvar] and using the latter syntax, you can use property names that contain characters that Javascript won't allow in the x.foo syntax.

A property name can be any string value.

An array is an object so it has all the same capabilities of an object plus a bunch of additional features for managing an ordered, sequential list of numbered indexes starting from 0 and going up to some length. Arrays are typically used for an ordered list of items that are accessed by numerical index. And, because the array is ordered, there are lots of useful features to manage the order of the list .sort() or to add or remove things from the list.

The error means that R could not find the variable mentioned in the error message.

The easiest way to reproduce the error is to type the name of a variable that doesn't exist. (If you've defined x already, use a different variable name.)

x
## Error: object 'x' not found

The more complex version of the error has the same cause: calling a function when x does not exist.

mean(x)
## Error in mean(x) : 
##   error in evaluating the argument 'x' in selecting a method for function 'mean': Error: object 'x' not found

Once the variable has been defined, the error will not occur.

x <- 1:5
x
## [1] 1 2 3 4 5     
mean(x)
## [1] 3

You can check to see if a variable exists using ls or exists.

ls()        # lists all the variables that have been defined
exists("x") # returns TRUE or FALSE, depending upon whether x has been defined.

Errors like this can occur when you are using non-standard evaluation. For example, when using subset, the error will occur if a column name is not present in the data frame to subset.

d <- data.frame(a = rnorm(5))
subset(d, b > 0)
## Error in eval(expr, envir, enclos) : object 'b' not found

The error can also occur if you use custom evaluation.

get("var", "package:stats") #returns the var function
get("var", "package:utils")
## Error in get("var", "package:utils") : object 'var' not found

In the second case, the var function cannot be found when R looks in the utils package's environment because utils is further down the search list than stats.

In more advanced use cases, you may wish to read:

• The Scope section of the CRAN manual Intro to R and demo(scoping)
• The Non-standard evaluation chapter of Advanced R

If you have multiple factors (= a multi-dimensional data frame), you can use the dplyr package to count unique values in each combination of factors:

library("dplyr")
data %>% group_by(factor1, factor2) %>% summarize(count=n())

It uses the pipe operator %>% to chain method calls on the data frame data.

Here is a JQuery&JavaScript solutions to print div as it styles(with internal and external css)

$(document).ready(function() {
            $("#btnPrint").live("click", function () {//$btnPrint is button which will trigger print
                var divContents = $(".order_summery").html();//div which have to print
                var printWindow = window.open('', '', 'height=700,width=900');
                printWindow.document.write('<html><head><title></title>');
                printWindow.document.write('<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css" >');//external styles
                printWindow.document.write('<link rel="stylesheet" href="/css/custom.css" type="text/css"/>');
                printWindow.document.write('</head><body>');
                printWindow.document.write(divContents);
                printWindow.document.write('</body></html>');
                printWindow.document.close();

                printWindow.onload=function(){
                printWindow.focus();                                         
                printWindow.print();
                printWindow.close();
                }
            });
});

This will print your div in new window.

Button to trigger event

<input type="button" id="btnPrint" value="Print This">

this method also encounter a deprecate warning:

org.junit.Assert.assertEquals(float expected,float actual) //deprecated

It is because currently junit prefer a third parameter rather than just two float variables input.

The third parameter is delta:

public static void assertEquals(double expected,double actual,double delta) //replacement

this is mostly used to deal with inaccurate Floating point calculations

for more information, please refer this problem: Meaning of epsilon argument of assertEquals for double values

Use with=FALSE:

cols = paste("V", c(1,2,3,5), sep="")

dt[, !cols, with=FALSE]

I suggest going through the "Introduction to data.table" vignette.

Update: From v1.10.2 onwards, you can also do:

dt[, ..cols]

See the first NEWS item under v1.10.2 here for additional explanation.

You could use extension methods to make it a little more readable:

public static class DateTimeExtensions
{
    public static bool InRange(this DateTime dateToCheck, DateTime startDate, DateTime endDate)
    {
        return dateToCheck >= startDate && dateToCheck < endDate;
    }
}

Now you can write:

dateToCheck.InRange(startDate, endDate)

Promise.allSettled

Instead of Promise.all use Promise.allSettled which waits for all promises to settle, regardless of the result

let p1 = new Promise(resolve => resolve("result1"));
let p2 = new Promise( (resolve,reject) => reject('some troubles') );
let p3 = new Promise(resolve => resolve("result3"));

// It returns info about each promise status and value
Promise.allSettled([p1,p2,p3]).then(result=> console.log(result));

Polyfill

if (!Promise.allSettled) {
  const rejectHandler = reason => ({ status: 'rejected', reason });
  const resolveHandler = value => ({ status: 'fulfilled', value });

  Promise.allSettled = function (promises) {
    const convertedPromises = promises
      .map(p => Promise.resolve(p).then(resolveHandler, rejectHandler));
    return Promise.all(convertedPromises);
  };
}

If you are using Spring4/SpringBoot 1.x, then it's worth mentioning that you can add "text" (json) parts as well . This can be done via MockMvcRequestBuilders.fileUpload().file(MockMultipartFile file) (which is needed as method .multipart() is not available in this version):

@Test
public void test() throws Exception {

   mockMvc.perform( 
       MockMvcRequestBuilders.fileUpload("/files")
         // file-part
         .file(makeMultipartFile( "file-part" "some/path/to/file.bin", "application/octet-stream"))
        // text part
         .file(makeMultipartTextPart("json-part", "{ \"foo\" : \"bar\" }", "application/json"))
       .andExpect(status().isOk())));

   }

   private MockMultipartFile(String requestPartName, String filename, 
       String contentType, String pathOnClassPath) {

       return new MockMultipartFile(requestPartName, filename, 
          contentType, readResourceFile(pathOnClasspath);
   }

   // make text-part using MockMultipartFile
   private MockMultipartFile makeMultipartTextPart(String requestPartName, 
       String value, String contentType) throws Exception {

       return new MockMultipartFile(requestPartName, "", contentType,
               value.getBytes(Charset.forName("UTF-8")));   
   }


   private byte[] readResourceFile(String pathOnClassPath) throws Exception {
      return Files.readAllBytes(Paths.get(Thread.currentThread().getContextClassLoader()
         .getResource(pathOnClassPath).toUri()));
   }

}

Redirect non-www to www (both: http + https)

RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]

Python includes two functions in the math package; radians converts degrees to radians, and degrees converts radians to degrees.

To match the output of your calculator you need:

>>> math.cos(math.radians(1))
0.9998476951563913

Note that all of the trig functions convert between an angle and the ratio of two sides of a triangle. cos, sin, and tan take an angle in radians as input and return the ratio; acos, asin, and atan take a ratio as input and return an angle in radians. You only convert the angles, never the ratios.