Go up a level from the work directory

import os
os.path.dirname(os.getcwd())

or from the current directory

import os
os.path.dirname('current path')

VisualVm does not come with Apple JDK. You can use VisualVM Mac Application bundle(dmg) as a separate application, to compensate for that.

For identifying NaN values use boolean indexing:

print(df[df['x'].isnull()])

Then for removing all non-numeric values use to_numeric with parameter errors='coerce' - to replace non-numeric values to NaNs:

df['x'] = pd.to_numeric(df['x'], errors='coerce')

And for remove all rows with NaNs in column x use dropna:

df = df.dropna(subset=['x'])

Last convert values to ints:

df['x'] = df['x'].astype(int)

Another option to resolve issue described in OP which I encountered on recent bootcamp training is using window.setTimeout to wrap around the code which is bothersome. My understanding is that it delays the execution of the function for the specified time period (500ms in this case), allowing enough time for the page to load. So, for example:

<script type = "text/javascript">
            window.setTimeout(function(){
                alert("Hello World!");
            }, 500); 
</script>

Unfortunately there's a simple answer to this question, and it's "No"

Here is what I use:

import Foundation
import CoreLocation
import UIKit

class BackgroundLocationManager :NSObject, CLLocationManagerDelegate {

    static let instance = BackgroundLocationManager()
    static let BACKGROUND_TIMER = 150.0 // restart location manager every 150 seconds
    static let UPDATE_SERVER_INTERVAL = 60 * 60 // 1 hour - once every 1 hour send location to server

    let locationManager = CLLocationManager()
    var timer:NSTimer?
    var currentBgTaskId : UIBackgroundTaskIdentifier?
    var lastLocationDate : NSDate = NSDate()

    private override init(){
        super.init()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyKilometer
        locationManager.activityType = .Other;
        locationManager.distanceFilter = kCLDistanceFilterNone;
        if #available(iOS 9, *){
            locationManager.allowsBackgroundLocationUpdates = true
        }

        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.applicationEnterBackground), name: UIApplicationDidEnterBackgroundNotification, object: nil)
    }

    func applicationEnterBackground(){
        FileLogger.log("applicationEnterBackground")
        start()
    }

    func start(){
        if(CLLocationManager.authorizationStatus() == CLAuthorizationStatus.AuthorizedAlways){
            if #available(iOS 9, *){
                locationManager.requestLocation()
            } else {
                locationManager.startUpdatingLocation()
            }
        } else {
                locationManager.requestAlwaysAuthorization()
        }
    }
    func restart (){
        timer?.invalidate()
        timer = nil
        start()
    }

    func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
        switch status {
        case CLAuthorizationStatus.Restricted:
            //log("Restricted Access to location")
        case CLAuthorizationStatus.Denied:
            //log("User denied access to location")
        case CLAuthorizationStatus.NotDetermined:
            //log("Status not determined")
        default:
            //log("startUpdatintLocation")
            if #available(iOS 9, *){
                locationManager.requestLocation()
            } else {
                locationManager.startUpdatingLocation()
            }
        }
    }
    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {

        if(timer==nil){
            // The locations array is sorted in chronologically ascending order, so the
            // last element is the most recent
            guard let location = locations.last else {return}

            beginNewBackgroundTask()
            locationManager.stopUpdatingLocation()
            let now = NSDate()
            if(isItTime(now)){
                //TODO: Every n minutes do whatever you want with the new location. Like for example sendLocationToServer(location, now:now)
            }
        }
    }

    func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
        CrashReporter.recordError(error)

        beginNewBackgroundTask()
        locationManager.stopUpdatingLocation()
    }

    func isItTime(now:NSDate) -> Bool {
        let timePast = now.timeIntervalSinceDate(lastLocationDate)
        let intervalExceeded = Int(timePast) > BackgroundLocationManager.UPDATE_SERVER_INTERVAL
        return intervalExceeded;
    }

    func sendLocationToServer(location:CLLocation, now:NSDate){
        //TODO
    }

    func beginNewBackgroundTask(){
        var previousTaskId = currentBgTaskId;
        currentBgTaskId = UIApplication.sharedApplication().beginBackgroundTaskWithExpirationHandler({
            FileLogger.log("task expired: ")
        })
        if let taskId = previousTaskId{
            UIApplication.sharedApplication().endBackgroundTask(taskId)
            previousTaskId = UIBackgroundTaskInvalid
        }

        timer = NSTimer.scheduledTimerWithTimeInterval(BackgroundLocationManager.BACKGROUND_TIMER, target: self, selector: #selector(self.restart),userInfo: nil, repeats: false)
    }
}

I start the tracking in AppDelegate like that:

BackgroundLocationManager.instance.start()

Because i feel it's really called for, i just want to state some rules of C and C++ (they are the same in this regard). First, all bits of unsigned char participate in determining the value if any unsigned char object. Second, unsigned char is explicitly stated unsigned.

Now, i had a discussion with someone about what happens when you convert the value -1 of type int to unsigned char. He refused the idea that the resulting unsigned char has all its bits set to 1, because he was worried about sign representation. But he don't have to. It's immediately following out of this rule that the conversion does what is intended:

If the new type is unsigned, the value is converted by repeatedly adding or subtracting one more than the maximum value that can be represented in the new type until the value is in the range of the new type. (6.3.1.3p2 in a C99 draft)

That's a mathematical description. C++ describes it in terms of modulo calculus, which yields to the same rule. Anyway, what is not guaranteed is that all bits in the integer -1 are one before the conversion. So, what do we have so we can claim that the resulting unsigned char has all its CHAR_BIT bits turned to 1?

1. All bits participate in determining its value - that is, no padding bits occur in the object.
2. Adding only one time UCHAR_MAX+1 to -1 will yield a value in range, namely UCHAR_MAX

That's enough, actually! So whenever you want to have an unsigned char having all its bits one, you do

unsigned char c = (unsigned char)-1;

It also follows that a conversion is not just truncating higher order bits. The fortunate event for two's complement is that it is just a truncation there, but the same isn't necessarily true for other sign representations.

simply call req.url. that should do the work. you'll get something like /something?bla=foo

Elegant because it doesn't require you to determine which of the two boundary values is greater first. It also contains no branches.

public static bool InRange(float val, float a, float b)
{
    // Determine if val lies between a and b without first asking which is larger (a or b)
    return ( a <= val & val < b ) | ( b <= val & val < a );
}

$(':checkbox').change(function(){
    $('#delete').removeAttr('hidden');
});

Note, thanks to tip by A.Wolff, you should use removeAttr instead of setting to false. When set to false, the element will still be hidden. Therefore, removing is more effective.

Controller to be extended

require_once(PHYSICAL_BASE_URL . 'system/application/controllers/abc.php');

        $report= new onlineAssessmentReport();
        echo ($report->detailView());

My approach is a teensy extension to Dougman's example.

Extensions are...

Pass in the seed value as a parameter. Why? I like to call the thing resetting the sequence back to the max ID used in some table. I end up calling this proc from another script which executes multiple calls for a whole bunch of sequences, resetting nextval back down to some level which is high enough to not cause primary key violations where I'm using the sequence's value for a unique identifier.

It also honors the previous minvalue. It may in fact push the next value ever higher if the desired p_val or existing minvalue are higher than the current or calculated next value.

Best of all, it can be called to reset to a specified value, and just wait until you see the wrapper "fix all my sequences" procedure at the end.

create or replace
procedure Reset_Sequence( p_seq_name in varchar2, p_val in number default 0)
is
  l_current number := 0;
  l_difference number := 0;
  l_minvalue user_sequences.min_value%type := 0;

begin

  select min_value
  into l_minvalue
  from user_sequences
  where sequence_name = p_seq_name;

  execute immediate
  'select ' || p_seq_name || '.nextval from dual' INTO l_current;

  if p_Val < l_minvalue then
    l_difference := l_minvalue - l_current;
  else
    l_difference := p_Val - l_current;
  end if;

  if l_difference = 0 then
    return;
  end if;

  execute immediate
    'alter sequence ' || p_seq_name || ' increment by ' || l_difference || 
       ' minvalue ' || l_minvalue;

  execute immediate
    'select ' || p_seq_name || '.nextval from dual' INTO l_difference;

  execute immediate
    'alter sequence ' || p_seq_name || ' increment by 1 minvalue ' || l_minvalue;
end Reset_Sequence;

That procedure is useful all by itself, but now let's add another one which calls it and specifies everything programmatically with a sequence naming convention and looking for the maximum value used in an existing table/field...

create or replace
procedure Reset_Sequence_to_Data(
  p_TableName varchar2,
  p_FieldName varchar2
)
is
  l_MaxUsed NUMBER;
BEGIN

  execute immediate
    'select coalesce(max(' || p_FieldName || '),0) from '|| p_TableName into l_MaxUsed;

  Reset_Sequence( p_TableName || '_' || p_Fieldname || '_SEQ', l_MaxUsed );

END Reset_Sequence_to_Data;

Now we're cooking with gas!

The procedure above will check for a field's max value in a table, builds a sequence name from the table/field pair and invokes "Reset_Sequence" with that sensed max value.

The final piece in this puzzle and the icing on the cake comes next...

create or replace
procedure Reset_All_Sequences
is
BEGIN

  Reset_Sequence_to_Data( 'ACTIVITYLOG', 'LOGID' );
  Reset_Sequence_to_Data( 'JOBSTATE', 'JOBID' );
  Reset_Sequence_to_Data( 'BATCH', 'BATCHID' );

END Reset_All_Sequences;

In my actual database there are around one hundred other sequences being reset through this mechanism, so there are 97 more calls to Reset_Sequence_to_Data in that procedure above.

Love it? Hate it? Indifferent?

USING JAVA 8:

Map<String, String> headerMap = Arrays.stream(header.split(","))
                    .map(s -> s.split(":"))
                    .collect(Collectors.toMap(s -> s[0], s -> s[1]));

If you want square borders and still want the little expander arrow, I recommend this:

select.squarecorners{
     border: 0;
     outline: 1px solid #CCC;
     background-color: white;
}

Without JavaScript, it's not possible to open two pages by clicking one link unless both pages are framed on the one page that opens from clicking the link. With JS it's trivial:

<p><a href="#" onclick="window.open('http://google.com');
    window.open('http://yahoo.com');">Click to open Google and Yahoo</a></p>

Do note that this will be blocked by popup blockers built into web browsers but you are usually notified of this.

Can I tell the interface to default the properties I don't supply to null? What would let me do this

No. You cannot provide default values for interfaces or type aliases as they are compile time only and default values need runtime support

Alternative

But values that are not specified default to undefined in JavaScript runtimes. So you can mark them as optional:

interface IX {
  a: string,
  b?: any,
  c?: AnotherType
}

And now when you create it you only need to provide a:

let x: IX = {
    a: 'abc'
};

You can provide the values as needed:

x.a = 'xyz'
x.b = 123
x.c = new AnotherType()

You can make sure that all lines match but there is nothing to highlight on irrelevant matches

egrep --color 'apple|' test.txt 

Notes:

• egrep may be spelled also grep -E
• --color is usually default in most distributions
• some variants of grep will "optimize" the empty match, so you might want to use "apple|$" instead (see: https://stackoverflow.com/a/13979036/939457)

This should do the job:

diff -rq dir1 dir2

Options explained (via diff(1) man page):

• -r - Recursively compare any subdirectories found.
• -q - Output only whether files differ.

Below is the pagination logic as a function

function Pagination(pageEleArr, numOfEleToDisplayPerPage) {
    this.pageEleArr = pageEleArr;
    this.numOfEleToDisplayPerPage = numOfEleToDisplayPerPage;
    this.elementCount = this.pageEleArr.length;
    this.numOfPages = Math.ceil(this.elementCount / this.numOfEleToDisplayPerPage);
    const pageElementsArr = function (arr, eleDispCount) {
        const arrLen = arr.length;
        const noOfPages = Math.ceil(arrLen / eleDispCount);
        let pageArr = [];
        let perPageArr = [];
        let index = 0;
        let condition = 0;
        let remainingEleInArr = 0;

        for (let i = 0; i < noOfPages; i++) {

            if (i === 0) {
                index = 0;
                condition = eleDispCount;
            }
            for (let j = index; j < condition; j++) {
                perPageArr.push(arr[j]);
            }
            pageArr.push(perPageArr);
            if (i === 0) {
                remainingEleInArr = arrLen - perPageArr.length;
            } else {
                remainingEleInArr = remainingEleInArr - perPageArr.length;
            }

            if (remainingEleInArr > 0) {
                if (remainingEleInArr > eleDispCount) {
                    index = index + eleDispCount;
                    condition = condition + eleDispCount;
                } else {
                    index = index + perPageArr.length;
                    condition = condition + remainingEleInArr;
                }
            }
            perPageArr = [];
        }
        return pageArr;
    }
    this.display = function (pageNo) {
        if (pageNo > this.numOfPages || pageNo <= 0) {
            return -1;
        } else {
            console.log('Inside else loop in display method');
            console.log(pageElementsArr(this.pageEleArr, this.numOfEleToDisplayPerPage));
            console.log(pageElementsArr(this.pageEleArr, this.numOfEleToDisplayPerPage)[pageNo - 1]);
            return pageElementsArr(this.pageEleArr, this.numOfEleToDisplayPerPage)[pageNo - 1];
        }
    }
}

const p1 = new Pagination(['a', 'b', 'c', 'd', 'e', 'f', 'g'], 3);
console.log(p1.elementCount);
console.log(p1.pageEleArr);
console.log(p1.numOfPages);
console.log(p1.numOfEleToDisplayPerPage);
console.log(p1.display(3));

Below code will hide your text with fixed width you decide. but not quite right for responsive designs.

.CropLongTexts {
  width: 170px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

Update

I have noticed in (mobile) device(s) that the text (mixed) with each other due to (fixed width)... so i have edited the code above to become hidden responsively as follow:

.CropLongTexts {
  max-width: 170px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

The (max-width) ensure the text will be hidden responsively whatever the (screen size) and will not mixed with each other.

if (!$.trim($("element").val())) {

}

zip will transpose the list, after that you can concatenate the outputs.

In [3]: zip(*[ ['0,0', '0,1'], ['1,0', '1,1'], ['2,0', '2,1'] ])
Out[3]: [('0,0', '1,0', '2,0'), ('0,1', '1,1', '2,1')]

You can create separate tags using the .jquery() method. And create child tags by using the .append() method. As jQuery supports chaining, you can also apply CSS in two ways. Either specify it in the class or just call .attr():

var lTag = jQuery("<li/>")
.appendTo(".div_class").html(data.productDisplayName);

var aHref = jQuery('<a/>',{         
}).appendTo(lTag).attr("href", data.mediumImageURL);

jQuery('<img/>',{                                               
}).appendTo(aHref).attr("src", data.mediumImageURL).attr("alt", data.altText);

Firstly I am appending a list tag to my div tag and inserting JSON data into it. Next, I am creating a child tag of list, provided some attribute. I have assigned the value to a variable, so that it would be easy for me to append it.

Look at PAR (Perl Archiving Toolkit).

PAR is a Cross-Platform Packaging and Deployment tool, dubbed as a cross between Java's JAR and Perl2EXE/PerlApp.

@MaxPython The answer above is missing ":"

try:
   #do something
except:
  # print 'error/exception'

def printError(e): print e

Code from a question with any number of parameters and a callback context:

function SomeFunction(name) {
    this.name = name;
}
function tryMe(param1, param2) {
    console.log(this.name + ":  " + param1 + " and " + param2);
}
function tryMeMore(param1, param2, param3) {
    console.log(this.name + ": " + param1 + " and " + param2 + " and even " + param3);
}
function callbackTester(callback, callbackContext) {
    callback.apply(callbackContext, Array.prototype.splice.call(arguments, 2));
}
callbackTester(tryMe, new SomeFunction("context1"), "hello", "goodbye");
callbackTester(tryMeMore, new SomeFunction("context2"), "hello", "goodbye", "hasta la vista");

// context1: hello and goodbye
// context2: hello and goodbye and even hasta la vista

Update: If you are using Angular 1.2+, use ng-repeat-start. See @jmagnusson's answer.

Otherwise, how about putting the ng-repeat on tbody? (AFAIK, it is okay to have multiple <tbody>s in a single table.)

<tbody ng-repeat="row in array">
  <tr ng-repeat="item in row">
     <td>{{item}}</td>
  </tr>
</tbody>

Sequelize methods return promises, and there is no delete() method. Sequelize uses destroy() instead.

Example

Model.destroy({
  where: {
    some_field: {
      //any selection operation
      // for example [Op.lte]:new Date()
    }
  }
}).then(result => {
  //some operation
}).catch(error => {
  console.log(error)
})

Documentation for more details: https://www.codota.com/code/javascript/functions/sequelize/Model/destroy

To make images adjustable/flexible you could use this:

/* fit images to container */
.container img {
    max-width: 100%;
    height: auto;
}

1-check your security groups

2-check internet gateway

3-check route tables

I checked all the answers but informing only to kill PID.

In case if you have terminal access shared by all it will not help or maybe you do not have permission to kill PID.

In this case what you can do is:

Double click on server

Go to Overview and change ports in Ports like this:

I guess

@foo = ("aAa", "bbb");
@bar = grep(/^aaa/i, @foo);
print join ",",@bar;

would do the trick.

Solution for MySQL Workbench 6.3E

• On left panel, right click your table and selecct "Table Inspector"
• On center panel, click DDL label

Here is a quick start to get the gears turning...

ParkingLot is a class.

ParkingSpace is a class.

ParkingSpace has an Entrance.

Entrance has a location or more specifically, distance from Entrance.

ParkingLotSign is a class.

ParkingLot has a ParkingLotSign.

ParkingLot has a finite number of ParkingSpaces.

HandicappedParkingSpace is a subclass of ParkingSpace.

RegularParkingSpace is a subclass of ParkingSpace.

CompactParkingSpace is a subclass of ParkingSpace.

ParkingLot keeps array of ParkingSpaces, and a separate array of vacant ParkingSpaces in order of distance from its Entrance.

ParkingLotSign can be told to display "full", or "empty", or "blank/normal/partially occupied" by calling .Full(), .Empty() or .Normal()

Parker is a class.

Parker can Park().

Parker can Unpark().

Valet is a subclass of Parker that can call ParkingLot.FindVacantSpaceNearestEntrance(), which returns a ParkingSpace.

Parker has a ParkingSpace.

Parker can call ParkingSpace.Take() and ParkingSpace.Vacate().

Parker calls Entrance.Entering() and Entrance.Exiting() and ParkingSpace notifies ParkingLot when it is taken or vacated so that ParkingLot can determine if it is full or not. If it is newly full or newly empty or newly not full or empty, it should change the ParkingLotSign.Full() or ParkingLotSign.Empty() or ParkingLotSign.Normal().

HandicappedParker could be a subclass of Parker and CompactParker a subclass of Parker and RegularParker a subclass of Parker. (might be overkill, actually.)

In this solution, it is possible that Parker should be renamed to be Car.

You have to change the mamp Mysql Database port into 8889.

I believe you can also accomplish this quite simply as follows:

1. Convert Numpy array into a Pandas dataframe
2. Save as CSV

e.g. #1:

    # Libraries to import
    import pandas as pd
    import nump as np

    #N x N numpy array (dimensions dont matter)
    corr_mat    #your numpy array
    my_df = pd.DataFrame(corr_mat)  #converting it to a pandas dataframe

e.g. #2:

    #save as csv 
    my_df.to_csv('foo.csv', index=False)   # "foo" is the name you want to give
                                           # to csv file. Make sure to add ".csv"
                                           # after whatever name like in the code

The argument to split is a regular expression. "." matches anything so your delimiter to split on is anything.

Here is the example in docs:

// with query, resulting in /register?plan=private
router.push({ path: 'register', query: { plan: 'private' }})

Ref: https://router.vuejs.org/en/essentials/navigation.html

As mentioned in those docs, router.replace works like router.push

So, you seem to have it right in your sample code in question. But I think you may need to include either name or path parameter also, so that the router has some route to navigate to. Without a name or path, it does not look very meaningful.

This is my current understanding now:

• query is optional for router - some additional info for the component to construct the view
• name or path is mandatory - it decides what component to show in your <router-view>.

That might be the missing thing in your sample code.

EDIT: Additional details after comments

Have you tried using named routes in this case? You have dynamic routes, and it is easier to provide params and query separately:

routes: [
    { name: 'user-view', path: '/user/:id', component: UserView },
    // other routes
]

and then in your methods:

this.$router.replace({ name: "user-view", params: {id:"123"}, query: {q1: "q1"} })

Technically there is no difference between the above and this.$router.replace({path: "/user/123", query:{q1: "q1"}}), but it is easier to supply dynamic params on named routes than composing the route string. But in either cases, query params should be taken into account. In either case, I couldn't find anything wrong with the way query params are handled.

After you are inside the route, you can fetch your dynamic params as this.$route.params.id and your query params as this.$route.query.q1.

If this doesn't work I'm out of ideas. This way you get the 4 columns in both tables (as Bar owns them and Foo uses them to reference Bar) and the generated IDs in both entities. The set of 4 columns has to be unique in Bar so the many-to-one relation doesn't become a many-to-many.

@Embeddable
public class AnEmbeddedObject
{
    @Column(name = "column_1")
    private Long column1;
    @Column(name = "column_2")
    private Long column2;
    @Column(name = "column_3")
    private Long column3;
    @Column(name = "column_4")
    private Long column4;
}

@Entity
public class Foo
{
    @Id
    @Column(name = "id")
    @GeneratedValue(generator = "seqGen")
    @SequenceGenerator(name = "seqGen", sequenceName = "FOO_ID_SEQ", allocationSize = 1)
    private Long id;
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumns({
        @JoinColumn(name = "column_1", referencedColumnName = "column_1"),
        @JoinColumn(name = "column_2", referencedColumnName = "column_2"),
        @JoinColumn(name = "column_3", referencedColumnName = "column_3"),
        @JoinColumn(name = "column_4", referencedColumnName = "column_4")
    })
    private Bar bar;
}

@Entity
@Table(uniqueConstraints = @UniqueConstraint(columnNames = {
    "column_1",
    "column_2",
    "column_3",
    "column_4"
}))
public class Bar
{
    @Id
    @Column(name = "id")
    @GeneratedValue(generator = "seqGen")
    @SequenceGenerator(name = "seqGen", sequenceName = "BAR_ID_SEQ", allocationSize = 1)
    private Long id;
    @Embedded
    private AnEmbeddedObject anEmbeddedObject;
}

No. Servlets are not Thread safe

This is allows accessing more than one threads at a time

if u want to make it Servlet as Thread safe ., U can go for

Implement SingleThreadInterface(i) which is a blank Interface there is no

methods

or we can go for synchronize methods

we can make whole service method as synchronized by using synchronized

keyword in front of method

Example::

public Synchronized class service(ServletRequest request,ServletResponse response)throws ServletException,IOException

or we can the put block of the code in the Synchronized block

Example::

Synchronized(Object)

{

----Instructions-----

}

I feel that Synchronized block is better than making the whole method

Synchronized

It would depend on the browser's default stylesheet. You can view an (unofficial) table of CSS2.1 User Agent stylesheet defaults here.

Based on the page listed above, the default sizes look something like this:

    IE7     IE8     FF2         FF3         Opera   Safari 3.1
H1  24pt    2em     32px        32px        32px    32px       
H2  18pt    1.5em   24px        24px        24px    24px
H3  13.55pt 1.17em  18.7333px   18.7167px   18px    19px
H4  n/a     n/a     n/a         n/a         n/a     n/a
H5  10pt    0.83em  13.2667px   13.2833px   13px    13px
H6  7.55pt  0.67em  10.7333px   10.7167px   10px    11px

Also worth taking a look at is the default stylesheet for HTML 4. The W3C recommends using these styles as the default. An abridged excerpt:

h1 { font-size: 2em; }
h2 { font-size: 1.5em; }
h3 { font-size: 1.17em; }
h4 { font-size: 1.12em; }
h5 { font-size: .83em; }
h6 { font-size: .75em; }

Hope this information is helpful.

You can specify the row index in the read_csv or read_html constructors via the header parameter which represents Row number(s) to use as the column names, and the start of the data. This has the advantage of automatically dropping all the preceding rows which supposedly are junk.

import pandas as pd
from io import StringIO

In[1]
    csv = '''junk1, junk2, junk3, junk4, junk5
    junk1, junk2, junk3, junk4, junk5
    pears, apples, lemons, plums, other
    40, 50, 61, 72, 85
    '''

    df = pd.read_csv(StringIO(csv), header=2)
    print(df)

Out[1]
       pears   apples   lemons   plums   other
    0     40       50       61      72      85

First kill all the hanged instances of httpd, and then try restarting Apache:

service httpd restart

This code is a little more defensive, before opening a connection, check state. If connection state is Broken then we should try to close it. Broken means that the connection was previously opened and not functioning correctly. The second condition determines that connection state must be closed before attempting to open it again so the code can be called repeatedly.

// Defensive database opening logic.

if (_databaseConnection.State == ConnectionState.Broken) {
    _databaseConnection.Close();
}

if (_databaseConnection.State == ConnectionState.Closed) {
    _databaseConnection.Open();
}

Google maintains a server infrastructure that grows dynamically with the ever increasing internet demands. This link by google describes the method to remain up to date with their IP address ranges.

When you need the literal IP addresses for Google Apps mail servers, start by using one of the common DNS lookup commands (nslookup, dig, host) to retrieve the SPF records for the domain _spf.google.com, like so:

nslookup -q=TXT _spf.google.com 8.8.8.8

This returns a list of the domains included in Google's SPF record, such as: _netblocks.google.com, _netblocks2.google.com, _netblocks3.google.com

Now look up the DNS records associated with those domains, one at a time, like so:

nslookup -q=TXT _netblocks.google.com 8.8.8.8
nslookup -q=TXT _netblocks2.google.com 8.8.8.8
nslookup -q=TXT _netblocks3.google.com 8.8.8.8

The results of these commands contain the current range of addresses.

It looks like your syntax is slightly out. This has some good examples

DECLARE @TempCustomer TABLE
(
   CustomerId uniqueidentifier,
   FirstName nvarchar(100),
   LastName nvarchar(100),
   Email nvarchar(100)
);
INSERT @TempCustomer 
SELECT 
    CustomerId, 
    FirstName, 
    LastName, 
    Email 
FROM 
    Customer
WHERE 
    CustomerId = @CustomerId

Then later

SELECT CustomerId FROM @TempCustomer

SQLite doesn't support removing or modifying columns, apparently. But do remember that column data types aren't rigid in SQLite, either.

See also:

• SQLite Modify Column

In Apache 2.4, there's a new stock module called mod_ratelimit. For emulating modem speeds, you can use mod_dialup. Though I don't see why you just couldn't use mod_ratelimit for everything.

This is what I use in my application:

static void Main()
{
  bool mutexCreated = false;
  System.Threading.Mutex mutex = new System.Threading.Mutex( true, @"Local\slimCODE.slimKEYS.exe", out mutexCreated );

  if( !mutexCreated )
  {
    if( MessageBox.Show(
      "slimKEYS is already running. Hotkeys cannot be shared between different instances. Are you sure you wish to run this second instance?",
      "slimKEYS already running",
      MessageBoxButtons.YesNo,
      MessageBoxIcon.Question ) != DialogResult.Yes )
    {
      mutex.Close();
      return;
    }
  }

  // The usual stuff with Application.Run()

  mutex.Close();
}

Just resolved this issue. Its documented here.

I was calling $rootScope.$apply twice in the same flow. All I did is wrapped the content of the service function with a setTimeout(func, 1).

here's a pure Javascript alternative:

var mydiv = document.getElementById("myDiv");
var aTag = document.createElement('a');
aTag.setAttribute('href',"yourlink.htm");
aTag.innerText = "link text";
mydiv.appendChild(aTag);

Use a selector that will select all the rows and take the length.

var rowCount = $('#myTable tr').length;

Note: this approach also counts all trs of every nested table!

The reason that you get the 404 File Not Found error, is that your path to CSS given as a value to the href attribute is missing context path.

An HTTP request URL contains the following parts:

http://[host]:[port][request-path]?[query-string]

The request path is further composed of the following elements:

• Context path: A concatenation of a forward slash (/) with the context root of the servlet's web application. Example: http://host[:port]/context-root[/url-pattern]

• Servlet path: The path section that corresponds to the component alias that activated this request. This path starts with a forward slash (/).

• Path info: The part of the request path that is not part of the context path or the servlet path.

Read more here.

Solutions

There are several solutions to your problem, here are some of them:

1) Using <c:url> tag from JSTL

In my Java web applications I usually used <c:url> tag from JSTL when defining the path to CSS/JavaScript/image and other static resources. By doing so you can be sure that those resources are referenced always relative to the application context (context path).

If you say, that your CSS is located inside WebContent folder, then this should work:

<link type="text/css" rel="stylesheet" href="<c:url value="/globalCSS.css" />" />

The reason why it works is explained in the "JavaServer Pages™ Standard Tag Library" version 1.2 specification chapter 7.5 (emphasis mine):

7.5 <c:url>
Builds a URL with the proper rewriting rules applied.
...
The URL must be either an absolute URL starting with a scheme (e.g. "http:// server/context/page.jsp") or a relative URL as defined by JSP 1.2 in JSP.2.2.1 "Relative URL Specification". As a consequence, an implementation must prepend the context path to a URL that starts with a slash (e.g. "/page2.jsp") so that such URLs can be properly interpreted by a client browser.

NOTE
Don't forget to use Taglib directive in your JSP to be able to reference JSTL tags. Also see an example JSP page here.

2) Using JSP Expression Language and implicit objects

An alternative solution is using Expression Language (EL) to add application context:

<link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/globalCSS.css" />

Here we have retrieved the context path from the request object. And to access the request object we have used the pageContext implicit object.

3) Using <c:set> tag from JSTL

DISCLAIMER
The idea of this solution was taken from here.

To make accessing the context path more compact than in the solution ?2, you can first use the JSTL <c:set> tag, that sets the value of an EL variable or the property of an EL variable in any of the JSP scopes (page, request, session, or application) for later access.

<c:set var="root" value="${pageContext.request.contextPath}"/>
...
<link type="text/css" rel="stylesheet" href="${root}/globalCSS.css" />

IMPORTANT NOTE
By default, in order to set the variable in such manner, the JSP that contains this set tag must be accessed at least once (including in case of setting the value in the application scope using scope attribute, like <c:set var="foo" value="bar" scope="application" />), before using this new variable. For instance, you can have several JSP files where you need this variable. So you must ether a) both set the new variable holding context path in the application scope AND access this JSP first, before using this variable in other JSP files, or b) set this context path holding variable in EVERY JSP file, where you need to access to it.

4) Using ServletContextListener

The more effective way to make accessing the context path more compact is to set a variable that will hold the context path and store it in the application scope using a Listener. This solution is similar to solution ?3, but the benefit is that now the variable holding context path is set right at the start of the web application and is available application wide, no need for additional steps.

We need a class that implements ServletContextListener interface. Here is an example of such class:

package com.example.listener;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;

@WebListener
public class AppContextListener implements ServletContextListener {

    @Override
    public void contextInitialized(ServletContextEvent event) {
        ServletContext sc = event.getServletContext();
        sc.setAttribute("ctx", sc.getContextPath());
    }

    @Override
    public void contextDestroyed(ServletContextEvent event) {}

}

Now in a JSP we can access this global variable using EL:

<link type="text/css" rel="stylesheet" href="${ctx}/globalCSS.css" />

NOTE
@WebListener annotation is available since Servlet version 3.0. If you use a servlet container or application server that supports older Servlet specifications, remove the @WebServlet annotation and instead configure the listener in the deployment descriptor (web.xml). Here is an example of web.xml file for the container that supports maximum Servlet version 2.5 (other configurations are omitted for the sake of brevity):

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    version="2.5">
    ...  
    <listener>
        <listener-class>com.example.listener.AppContextListener</listener-class>
    </listener>
    ...
</webapp>

5) Using scriptlets

As suggested by user @gavenkoa you can also use scriptlets like this:

<%= request.getContextPath() %>

For such a small thing it is probably OK, just note that generally the use of scriptlets in JSP is discouraged.

Conclusion

I personally prefer either the first solution (used it in my previous projects most of the time) or the second, as they are most clear, intuitive and unambiguous (IMHO). But you choose whatever suits you most.

Other thoughts

You can deploy your web app as the default application (i.e. in the default root context), so it can be accessed without specifying context path. For more info read the "Update" section here.

Please Try This for Getting column Index

Private Sub lvDetail_MouseMove(sender As Object, e As MouseEventArgs) Handles lvDetail.MouseClick

    Dim info As ListViewHitTestInfo = lvDetail.HitTest(e.X, e.Y)
    Dim rowIndex As Integer = lvDetail.FocusedItem.Index
    lvDetail.Items(rowIndex).Selected = True
    Dim xTxt = info.SubItem.Text
    For i = 0 To lvDetail.Columns.Count - 1
        If lvDetail.SelectedItems(0).SubItems(i).Text = xTxt Then
            MsgBox(i)
        End If
    Next
End Sub

Sorry, but it might even be more complicated, involving pbkdf2, or even a variation of it. Listen to the WWDC 2010 session #209, which mainly talks about the security measures in iOS 4, but also mentions briefly the separate encryption of backups and how they're related.

You can be pretty sure that without knowing the password, there's no way you can decrypt it, even by brute force.

Let's just assume you want to try to enable people who KNOW the password to get to the data of their backups.

I fear there's no way around looking at the actual code in iTunes in order to figure out which algos are employed.

Back in the Newton days, I had to decrypt data from a program and was able to call its decryption function directly (knowing the password, of course) without the need to even undersand its algorithm. It's not that easy anymore, unfortunately.

I'm sure there are skilled people around who could reverse engineer that iTunes code - you just have to get them interested.

In theory, Apple's algos should be designed in a way that makes the data still safe (i.e. practically unbreakable by brute force methods) to any attacker knowing the exact encryption method. And in WWDC session 209 they went pretty deep into details about what they do to accomplish this. Maybe you can actually get answers directly from Apple's security team if you tell them your good intentions. After all, even they should know that security by obfuscation is not really efficient. Try their security mailing list. Even if they do not repond, maybe someone else silently on the list will respond with some help.

Good luck!

Since none of the above worked for me, so I wrote my own recursive function. Call Function copyTree(dir1, dir2) to merge directories. Run on multi-platforms Linux and Windows.

def forceMergeFlatDir(srcDir, dstDir):
    if not os.path.exists(dstDir):
        os.makedirs(dstDir)
    for item in os.listdir(srcDir):
        srcFile = os.path.join(srcDir, item)
        dstFile = os.path.join(dstDir, item)
        forceCopyFile(srcFile, dstFile)

def forceCopyFile (sfile, dfile):
    if os.path.isfile(sfile):
        shutil.copy2(sfile, dfile)

def isAFlatDir(sDir):
    for item in os.listdir(sDir):
        sItem = os.path.join(sDir, item)
        if os.path.isdir(sItem):
            return False
    return True


def copyTree(src, dst):
    for item in os.listdir(src):
        s = os.path.join(src, item)
        d = os.path.join(dst, item)
        if os.path.isfile(s):
            if not os.path.exists(dst):
                os.makedirs(dst)
            forceCopyFile(s,d)
        if os.path.isdir(s):
            isRecursive = not isAFlatDir(s)
            if isRecursive:
                copyTree(s, d)
            else:
                forceMergeFlatDir(s, d)

Here is a solution that worked for me.

function calduedate(ndays){

    var newdt = new Date(); var chrday; var chrmnth;
    newdt.setDate(newdt.getDate() + parseInt(ndays));

    var newdate = newdt.getFullYear();
    if(newdt.getMonth() < 10){
        newdate = newdate+'-'+'0'+newdt.getMonth();
    }else{
        newdate = newdate+'-'+newdt.getMonth();
    }
    if(newdt.getDate() < 10){
        newdate = newdate+'-'+'0'+newdt.getDate();
    }else{
        newdate = newdate+'-'+newdt.getDate();
    }

    alert("newdate="+newdate);

}

My Source: http://htmlhelp.com/tools/validator/problems.html#amp

Another common error occurs when including a URL which contains an ampersand ("&"):

This is invalid:

a href="foo.cgi?chapter=1&section=2&copy=3&lang=en"

Explanation:

This example generates an error for "unknown entity section" because the "&" is assumed to begin an entity reference. Browsers often recover safely from this kind of error, but real problems do occur in some cases. In this example, many browsers correctly convert &copy=3 to ©=3, which may cause the link to fail. Since ⟨ is the HTML entity for the left-pointing angle bracket, some browsers also convert &lang=en to <=en. And one old browser even finds the entity §, converting &section=2 to §ion=2.

So the goal here is to avoid problems when you are trying to validate your website. So you should be replacing your ampersands with & when writing a URL in your markup.

Note that replacing & with &amp; is only done when writing the URL in HTML, where "&" is a special character (along with "<" and ">"). When writing the same URL in a plain text email message or in the location bar of your browser, you would use "&" and not "&". With HTML, the browser translates "&" to "&" so the Web server would only see "&" and not "&" in the query string of the request.

Hope this helps : )

In order to include a global library, eg jquery.js file in the scripts array from angular-cli.json (angular.json when using angular 6+):

"scripts": [
  "../node_modules/jquery/dist/jquery.js"
]

After this, restart ng serve if it is already started.

To omit all falsey values but keep the boolean primitives this solution helps.

_.omitBy(fields, v => (_.isBoolean(v)||_.isFinite(v)) ? false : _.isEmpty(v));

let fields = {_x000D_
str: 'CAD',_x000D_
numberStr: '123',_x000D_
number  : 123,_x000D_
boolStrT: 'true',_x000D_
boolStrF: 'false',_x000D_
boolFalse : false,_x000D_
boolTrue  : true,_x000D_
undef: undefined,_x000D_
nul: null,_x000D_
emptyStr: '',_x000D_
array: [1,2,3],_x000D_
emptyArr: []_x000D_
};_x000D_
_x000D_
let nobj = _.omitBy(fields, v => (_.isBoolean(v)||_.isFinite(v)) ? false : _.isEmpty(v));_x000D_
_x000D_
console.log(nobj);

<script src="https://cdn.jsdelivr.net/npm/[email protected]/lodash.min.js"></script>

If compileOptions doesn't work, try this

Disable 'Instant Run'.

Android Studio -> File -> Settings -> Build, Execution, Deployment -> Instant Run -> Disable checkbox

Building on jävi's answer, this can be done without IDs or additional button attributes like this:

http://jsfiddle.net/isherwood/E5Ly5/

<button class="popper" data-toggle="popover">Pop me</button>
<div class="popper-content hide">My first popover content goes here.</div>

<button class="popper" data-toggle="popover">Pop me</button>
<div class="popper-content hide">My second popover content goes here.</div>

<button class="popper" data-toggle="popover">Pop me</button>
<div class="popper-content hide">My third popover content goes here.</div>

$('.popper').popover({
    container: 'body',
    html: true,
    content: function () {
        return $(this).next('.popper-content').html();
    }
});

I had this exact same problem. One solution that would work would be to create a brand new project, but I don't think there's any need for that. For me the problem was that the debug certificate that gets auto-generated had expired. Deleting this file allowed Eclipse to rebuild that file, which solved the problem. You can't run an app with an invalid certificate, whether it be a debug or release certificate. Note that cleaning my project did not work. For more information, see: "Debug certificate expired" error in Eclipse Android plugins

int ArraySize = 400;

int[] terms = new int[ArraySize];


for(int runs = 0; runs < ArraySize; runs++)
{

    terms[runs] = runs;

}

That would be how I'd code it.

Swift 3:

extension Dictionary {

    mutating func merge(with dictionary: Dictionary) {
        dictionary.forEach { updateValue($1, forKey: $0) }
    }

    func merged(with dictionary: Dictionary) -> Dictionary {
        var dict = self
        dict.merge(with: dictionary)
        return dict
    }
}

let a = ["a":"b"]
let b = ["1":"2"]
let c = a.merged(with: b)

print(c) //["a": "b", "1": "2"]

To understand the "encoding" attribute, you have to understand the difference between bytes and characters.

Think of bytes as numbers between 0 and 255, whereas characters are things like "a", "1" and "Ä". The set of all characters that are available is called a character set.

Each character has a sequence of one or more bytes that are used to represent it; however, the exact number and value of the bytes depends on the encoding used and there are many different encodings.

Most encodings are based on an old character set and encoding called ASCII which is a single byte per character (actually, only 7 bits) and contains 128 characters including a lot of the common characters used in US English.

For example, here are 6 characters in the ASCII character set that are represented by the values 60 to 65.

Extract of ASCII Table 60-65
+---------------------+
¦ Byte ¦  Character   ¦
¦------+--------------¦
¦  60  ¦      <       ¦
¦  61  ¦      =       ¦
¦  62  ¦      >       ¦
¦  63  ¦      ?       ¦
¦  64  ¦      @       ¦
¦  65  ¦      A       ¦
+---------------------+

In the full ASCII set, the lowest value used is zero and the highest is 127 (both of these are hidden control characters).

However, once you start needing more characters than the basic ASCII provides (for example, letters with accents, currency symbols, graphic symbols, etc.), ASCII is not suitable and you need something more extensive. You need more characters (a different character set) and you need a different encoding as 128 characters is not enough to fit all the characters in. Some encodings offer one byte (256 characters) or up to six bytes.

Over time a lot of encodings have been created. In the Windows world, there is CP1252, or ISO-8859-1, whereas Linux users tend to favour UTF-8. Java uses UTF-16 natively.

One sequence of byte values for a character in one encoding might stand for a completely different character in another encoding, or might even be invalid.

For example, in ISO 8859-1, â is represented by one byte of value 226, whereas in UTF-8 it is two bytes: 195, 162. However, in ISO 8859-1, 195, 162 would be two characters, Ã, ¢.

Think of XML as not a sequence of characters but a sequence of bytes.

Imagine the system receiving the XML sees the bytes 195, 162. How does it know what characters these are?

In order for the system to interpret those bytes as actual characters (and so display them or convert them to another encoding), it needs to know the encoding used in the XML.

Since most common encodings are compatible with ASCII, as far as basic alphabetic characters and symbols go, in these cases, the declaration itself can get away with using only the ASCII characters to say what the encoding is. In other cases, the parser must try and figure out the encoding of the declaration. Since it knows the declaration begins with <?xml it is a lot easier to do this.

Finally, the version attribute specifies the XML version, of which there are two at the moment (see Wikipedia XML versions. There are slight differences between the versions, so an XML parser needs to know what it is dealing with. In most cases (for English speakers anyway), version 1.0 is sufficient.

Make sure you have imported HttpClientModule instead of adding HttpClient direcly to the list of providers.

See https://angular.io/guide/http#setup for more info.

The HttpClientModule actually provides HttpClient for you. See https://angular.io/api/common/http/HttpClientModule:

Code sample:

import { HttpClientModule, /* other http imports */ } from "@angular/common/http";

@NgModule({
    // ...other declarations, providers, entryComponents, etc.
    imports: [
        HttpClientModule,
        // ...some other imports
    ],
})
export class AppModule { }

You could just redirect them to another page. Actually making it literally click a link and travel to it seems unnessacary, but I don't know the whole story.

I think you need to use /deep/, because your CSS may not see your modal class. For example, if you want to customize .modal-dialog

/deep/.modal-dialog {
  width: 75% !important;
}

But this code will modify all your modal-windows, better solution will be

:host {
  /deep/.modal-dialog {
  width: 75% !important;
  }
}

An extra pair of rabbits' ears should do the trick.

start "" "C:\Program...

START regards the first quoted parameter as the window-title, unless it's the only parameter - and any switches up until the executable name are regarded as START switches.

If you are a control freak like me, you may want to explicitly set all your font sizes:

import matplotlib.pyplot as plt

SMALL_SIZE = 8
MEDIUM_SIZE = 10
BIGGER_SIZE = 12

plt.rc('font', size=SMALL_SIZE)          # controls default text sizes
plt.rc('axes', titlesize=SMALL_SIZE)     # fontsize of the axes title
plt.rc('axes', labelsize=MEDIUM_SIZE)    # fontsize of the x and y labels
plt.rc('xtick', labelsize=SMALL_SIZE)    # fontsize of the tick labels
plt.rc('ytick', labelsize=SMALL_SIZE)    # fontsize of the tick labels
plt.rc('legend', fontsize=SMALL_SIZE)    # legend fontsize
plt.rc('figure', titlesize=BIGGER_SIZE)  # fontsize of the figure title

Note that you can also set the sizes calling the rc method on matplotlib:

import matplotlib

SMALL_SIZE = 8
matplotlib.rc('font', size=SMALL_SIZE)
matplotlib.rc('axes', titlesize=SMALL_SIZE)

# and so on ...

I prefer to employ:

from matplotlib import rc
#rc('font',**{'family':'sans-serif','sans-serif':['Helvetica']})
rc('font',**{'family':'serif','serif':['Times']})
rc('text', usetex=True)

The answers didn't work for me with postgresql 9.1+

This is what I had to do (you can check more in the manual here)

UPDATE schema.TableA as A
SET "columnA" = "B"."columnB"
FROM schema.TableB as B
WHERE A.id = B.id;

You can omit the schema, if you are using the default schema for both tables.

Our web app requires a fixed header. We are fortunate in that we only have to support the latest browsers, but Safari's behavior in this area caused us a real problem.

The best fix, as others have pointed out, is to write our own scrolling code. However, we can't justify that effort to fix a problem that occurs only on iOS. It makes more sense to hope that Apple may fix this problem, especially since, as QuirksMode suggests, Apple now stands alone in their interpretation of "position:fixed".

http://www.quirksmode.org/blog/archives/2013/12/position_fixed_1.html

What worked for us is to toggle between "position:fixed" and "position:absolute" depending on whether the user has zoomed. This replaces our "floating" header with predictable behavior, which is important for usability. When zoomed, the behavior is not what we want, but the user can easily work around this by reversing the zoom.

// On iOS, "position: fixed;" is not supported when zoomed, so toggle "position: absolute;".
header = document.createElement( "HEADER" );
document.body.appendChild( header );
if( navigator.userAgent.match( /iPad/i ) || navigator.userAgent.match( /iPhone/i )) {
    addEventListener( document.body, function( event ) {
        var zoomLevel = (( Math.abs( window.orientation ) === 90 ) ? screen.height : screen.width ) / window.innerWidth;
        header.style.position = ( zoomLevel > 1 ) ? "absolute" : "fixed";
    });
}

Edit 2016: read the next two answers.

• JQuery 3 fixes the underlying issue
• Vanilla JS: element.classList.add('newclass') works in modern browsers

JQuery (less than 3) can't add a class to an SVG.

.attr() works with SVG, so if you want to depend on jQuery:

// Instead of .addClass("newclass")
$("#item").attr("class", "oldclass newclass");
// Instead of .removeClass("newclass")
$("#item").attr("class", "oldclass");

And if you don't want to depend on jQuery:

var element = document.getElementById("item");
// Instead of .addClass("newclass")
element.setAttribute("class", "oldclass newclass");
// Instead of .removeClass("newclass")
element.setAttribute("class", "oldclass");

I got the same question after updating OS X Yosemite, well the solution is quite simple, check system preference -> mysql, the status was STOP. Just restart it and it works fine on my mac now.

FOO='BAR * BAR'
echo "$FOO"

More on gdoron's answer, it can also be done this way:

$(window).on("click", "#filter", function() {
    alert('clicked!');
});

without the need to place them all into $(function(){...})

A generic,simpler and a bit primitive approach to find tag, attribute and value

    Pattern pattern = Pattern.compile("<(\\w+)( +.+)*>((.*))</\\1>");
    System.out.println(pattern.matcher("<asd> TEST</asd>").find());
    System.out.println(pattern.matcher("<asd TEST</asd>").find());
    System.out.println(pattern.matcher("<asd attr='3'> TEST</asd>").find());
    System.out.println(pattern.matcher("<asd> <x>TEST<x>asd>").find());
    System.out.println("-------");
    Matcher matcher = pattern.matcher("<as x> TEST</as>");
    if (matcher.find()) {
        for (int i = 0; i <= matcher.groupCount(); i++) {
            System.out.println(i + ":" + matcher.group(i));
        }
    }

This can happen when the owner of the SQLite file itself is not the same as the user running the script. Similar errors can occur if the entire directory path (meaning each directory along the way) can't be written to.

Who owns the SQLite file? You?

Who is the script running as? Apache or Nobody?

To do it on page load:

window.onload = function () {_x000D_
  var input = document.getElementById('myTextInput');_x000D_
  input.focus();_x000D_
  input.select();_x000D_
}

<input id="myTextInput" value="Hello world!" />

Maybe powershell -Command "Get-AppLockerFileInformation....."

Take a look at powershell /?

You can do that with list-style-position: inside; on the ul element :

ul {
    list-style-position: inside;
}

See working fiddle

Finding of week number for each date of a month (considering Monday as beginning of the week)

Keep the first date of month contant $B$13

=WEEKNUM(B18,2)-WEEKNUM($B$13,2)+1

WEEKNUM(B18,2) - returns the week number of the date mentioned in cell B18

WEEKNUM($B$13,2) - returns the week number of the 1st date of month in cell B13

You are checking whether the string contains all illegal characters. Change the ||s to &&s.

int main() {
int sum = 0;
cout << "enter number" << endl;
int i = 0;
while (true) {
    cin >> i;
    sum += i;
    //cout << i << endl;
    if (cin.peek() == '\n') {
        break;
    }
    
}

cout << "result: " << sum << endl;
return 0;
}

I think this code works, you may enter any int numbers and spaces, it will calculate the sum of input ints

You could use bind method

for (var i = 1, j = 1; i <= 3; i++, j++) {
    setTimeout(function() {
        alert(this);
    }.bind(i), j * 100);
}

The counter variable inside the loop is called loop.index in jinja2.

>>> from jinja2 import Template

>>> s = "{% for element in elements %}{{loop.index}} {% endfor %}"
>>> Template(s).render(elements=["a", "b", "c", "d"])
1 2 3 4

See http://jinja.pocoo.org/docs/templates/ for more.

Not so long ago I made some trick to have enums properly displayed in QComboBox and to have definition of enum and string representations as one statement

#pragma once
#include <boost/unordered_map.hpp>

namespace enumeration
{

   struct enumerator_base : boost::noncopyable
   {
      typedef
         boost::unordered_map<int, std::wstring>
         kv_storage_t;
      typedef
         kv_storage_t::value_type
         kv_type;
      kv_storage_t const & kv() const
      {
         return storage_;
      }

      LPCWSTR name(int i) const
      {
         kv_storage_t::const_iterator it = storage_.find(i);
         if(it != storage_.end())
            return it->second.c_str();
         return L"empty";
      }

   protected:
      kv_storage_t storage_;
   };

   template<class T>
   struct enumerator;

   template<class D>
   struct enum_singleton : enumerator_base
   {
      static enumerator_base const & instance()
      {
         static D inst;
         return inst;
      }
   };
}

#define QENUM_ENTRY(K, V, N)  K, N storage_.insert(std::make_pair((int)K, V));

#define QBEGIN_ENUM(NAME, C)   \
enum NAME                     \
{                             \
   C                          \
}                             \
};                            \
}                             \

#define QEND_ENUM(NAME) \
};                     \
namespace enumeration  \
{                      \
template<>             \
struct enumerator<NAME>\
   : enum_singleton< enumerator<NAME> >\
{                      \
   enumerator()        \
   {

//usage
/*
QBEGIN_ENUM(test_t,
   QENUM_ENTRY(test_entry_1, L"number uno",
   QENUM_ENTRY(test_entry_2, L"number dos",
   QENUM_ENTRY(test_entry_3, L"number tres",
QEND_ENUM(test_t)))))
*/

Now you've got enumeration::enum_singleton<your_enum>::instance() able to convert enums to strings. If you replace kv_storage_t with boost::bimap, you will also be able to do backward conversion. Common base class for converter was introduced to store it in Qt object, because Qt objects couldn't be templates

Previous appearance

I had a problem with an xml file that had a broken encoding, it said it was utf-8 but it had characters that where not utf-8.
After several trials and errors with the mb_convert_encoding() I manage to fix it with

mb_convert_encoding($text, 'Windows-1252', 'UTF-8')

For resovle this issue:

1. Go to Xcode/Preferences/Accounts
2. Click on your apple id account;
3. Click - "View Details" (is open a new window with "signing identities" and "provisioning profiles";
4. Delete all certificates from "Provisioning profiles", empty trash;
5. Delete your Apple-ID account;
6. Log in again with your apple id and build app!

Good luck!

I think @Zack properly answered the question but just to cover all the bases:

Update myTable set MyColumn = NULL

This would set the entire column to null as the Question Title asks.

To set a specific row on a specific column to null use:

Update myTable set MyColumn = NULL where Field = Condition.

This would set a specific cell to null as the inner question asks.

What it seems like to me is that by calling the keys method you're returning to python a dictionary object when it's looking for a list or a tuple. So try taking all of the keys in the dictionary, putting them into a list and then using the for loop.

Aggregated List of Libraries

• Boost.Asio is really good.
• Asio is also available as a stand-alone library.
• ACE is also good, a bit more mature and has a couple of books to support it.
• C++ Network Library
• POCO
• Qt
• Raknet
• ZeroMQ (C++)
• nanomsg (C Library)
• nng (C Library)
• Berkeley Sockets
• libevent
• Apache APR
• yield
• Winsock2(Windows only)
• wvstreams
• zeroc
• libcurl
• libuv (Cross-platform C library)
• SFML's Network Module
• C++ Rest SDK (Casablanca)
• RCF
• Restbed (HTTP Asynchronous Framework)
• SedNL
• SDL_net
• OpenSplice|DDS
• facil.io (C, with optional HTTP and Websockets, Linux / BSD / macOS)
• GLib Networking
• grpc from Google
• GameNetworkingSockets from Valve
• CYSockets To do easy things in the easiest way

Tip for 1 website resizing the height. But you can change to 2 websites.

Here is my code to resize an iframe with an external website. You need insert a code into the parent (with iframe code) page and in the external website as well, so, this won't work with you don't have access to edit the external website.

• local (iframe) page: just insert a code snippet
• remote (external) page: you need a "body onload" and a "div" that holds all contents. And body needs to be styled to "margin:0"

Local:

<IFRAME STYLE="width:100%;height:1px" SRC="http://www.remote-site.com/" FRAMEBORDER="no" BORDER="0" SCROLLING="no" ID="estframe"></IFRAME>

<SCRIPT>
var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
var eventer = window[eventMethod];
var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";
eventer(messageEvent,function(e) {
  if (e.data.substring(0,3)=='frm') document.getElementById('estframe').style.height = e.data.substring(3) + 'px';
},false);
</SCRIPT>

You need this "frm" prefix to avoid problems with other embeded codes like Twitter or Facebook plugins. If you have a plain page, you can remove the "if" and the "frm" prefix on both pages (script and onload).

Remote:

You need jQuery to accomplish about "real" page height. I cannot realize how to do with pure JavaScript since you'll have problem when resize the height down (higher to lower height) using body.scrollHeight or related. For some reason, it will return always the biggest height (pre-redimensioned).

<BODY onload="parent.postMessage('frm'+$('#master').height(),'*')" STYLE="margin:0">
<SCRIPT SRC="path-to-jquery/jquery.min.js"></SCRIPT>
<DIV ID="master">
your content
</DIV>

So, parent page (iframe) has a 1px default height. The script inserts a "wait for message/event" from the iframe. When a message (post message) is received and the first 3 chars are "frm" (to avoid the mentioned problem), will get the number from 4th position and set the iframe height (style), including 'px' unit.

The external site (loaded in the iframe) will "send a message" to the parent (opener) with the "frm" and the height of the main div (in this case id "master"). The "*" in postmessage means "any source".

Hope this helps. Sorry for my english.

I had the same problem. I just updated the python from 2.7.0 to 2.7.15. It solves the problem.

You can download here.

People already mentioned that

Task.Run(A);

Is equivalent to

Task.Factory.StartNew(A, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Default);

But no one mentioned that

Task.Factory.StartNew(A);

Is equivalent to:

Task.Factory.StartNew(A, CancellationToken.None, TaskCreationOptions.None, TaskScheduler.Current);

As you can see two parameters are different for Task.Run and Task.Factory.StartNew:

1. TaskCreationOptions - Task.Run uses TaskCreationOptions.DenyChildAttach which means that children tasks can not be attached to the parent, consider this:

   var parentTask = Task.Run(() =>
   {
       var childTask = new Task(() =>
       {
           Thread.Sleep(10000);
           Console.WriteLine("Child task finished.");
       }, TaskCreationOptions.AttachedToParent);
       childTask.Start();
   
       Console.WriteLine("Parent task finished.");
   });
   
   parentTask.Wait();
   Console.WriteLine("Main thread finished.");
   

   When we invoke parentTask.Wait(), childTask will not be awaited, even though we specified TaskCreationOptions.AttachedToParent for it, this is because TaskCreationOptions.DenyChildAttach forbids children to attach to it. If you run the same code with Task.Factory.StartNew instead of Task.Run, parentTask.Wait() will wait for childTask because Task.Factory.StartNew uses TaskCreationOptions.None

2. TaskScheduler - Task.Run uses TaskScheduler.Default which means that the default task scheduler (the one that runs tasks on Thread Pool) will always be used to run tasks. Task.Factory.StartNew on the other hand uses TaskScheduler.Current which means scheduler of the current thread, it might be TaskScheduler.Default but not always. In fact when developing Winforms or WPF applications it is required to update UI from the current thread, to do this people use TaskScheduler.FromCurrentSynchronizationContext() task scheduler, if you unintentionally create another long running task inside task that used TaskScheduler.FromCurrentSynchronizationContext() scheduler the UI will be frozen. A more detailed explanation of this can be found here

So generally if you are not using nested children task and always want your tasks to be executed on Thread Pool it is better to use Task.Run, unless you have some more complex scenarios.

Use RegEx.Replace, something like this:

  string input = "This is   text with   far  too   much   " + 
                 "whitespace.";
  string pattern = "[;,]";
  string replacement = "\n";
  Regex rgx = new Regex(pattern);
  string result = rgx.Replace(input, replacement);

Here's more info on this MSDN documentation for RegEx.Replace

Instead of using For each loop, use normal for loop. for example,the below code removes all the element in the array list without giving java.util.ConcurrentModificationException. You can modify the condition in the loop according to your use case.

for(int i=0; i<abc.size(); i++)  {
       e.remove(i);
 }

Take a look at the possible XPath axes, you are probably looking for parent. Depending on how you are finding the first element, you could just adjust the xpath for that.

Alternatively you can try the double-dot syntax, .. which selects the parent of the current node.

You can use the overloaded < or > operators.

For example:

DateTime d1 = new DateTime(2008, 1, 1);
DateTime d2 = new DateTime(2008, 1, 2);
if (d1 < d2) { ...

If program name is always the first thing in (), and doesn't contain other )s than the one at end, then $yourstring -match "[(][^)]+[)]" does the matching, result will be in $Matches[0]

I'm surprised no one mentioned the possibility to use an API to do the work.

Granted, if you want to stay secure, converting HTML to PDF directly from within the browser using javascript is not a good idea.

But here's what you can do:

When your user hit the "Print" (for example) button, you:

1. Send a request to your server at a specific endpoint with details about what to convert (URL of the page for instance).
2. This endpoint will then send the data to convert to an API, and will receive the PDF in response
3. which it will return to your user.

For a user point of view, they will receive a PDF by clicking on a button.

There are many available API that does the job, some better than others (that's not why I'm here) and a Google search will give you a lot of answers.

Depending on what is written your backend, you might be interested in PDFShift (Truth: I work there).

They offer ready to work packages for PHP, Python and Node.js. All you have to do is install the package, create an account, indicate your API key and you are all set!

The advantage of the API is that they work well in all languages. All you have to do is a request (generally POST) containing the data you want to be converted and get a PDF back. And depending on your usage, it's generally free, except if you are a heavy user.

LGPL / FOSS iTextSharp 4.x

var pdfReader = new PdfReader(path); //other filestream etc
byte[] pageContent = _pdfReader .GetPageContent(pageNum); //not zero based
byte[] utf8 = Encoding.Convert(Encoding.Default, Encoding.UTF8, pageContent);
string textFromPage = Encoding.UTF8.GetString(utf8);

None of the other answers were useful to me, they all seem to target the AGPL v5 of iTextSharp. I could never find any reference to SimpleTextExtractionStrategy or LocationTextExtractionStrategy in the FOSS version.

Something else that might be very useful in conjunction with this:

const string PdfTableFormat = @"\(.*\)Tj";
Regex PdfTableRegex = new Regex(PdfTableFormat, RegexOptions.Compiled);

List<string> ExtractPdfContent(string rawPdfContent)
{
    var matches = PdfTableRegex.Matches(rawPdfContent);

    var list = matches.Cast<Match>()
        .Select(m => m.Value
            .Substring(1) //remove leading (
            .Remove(m.Value.Length - 4) //remove trailing )Tj
            .Replace(@"\)", ")") //unencode parens
            .Replace(@"\(", "(")
            .Trim()
        )
        .ToList();
    return list;
}

This will extract the text-only data from the PDF if the text displayed is Foo(bar) it will be encoded in the PDF as (Foo\(bar\))Tj, this method would return Foo(bar) as expected. This method will strip out lots of additional information such as location coordinates from the raw pdf content.

There is an option “unlimited scrollback buffer” which you can find under Preferences > Profiles > Terminal or you can just pump up number of lines that you want to have in history in the same place.

Don't do this,

try 
{
...
}
catch(Exception ex)
{
   throw ex;
}

You'll lose the stack trace information...

Either do,

try { ... }
catch { throw; }

OR

try { ... }
catch (Exception ex)
{
    throw new Exception("My Custom Error Message", ex);
}

One of the reason you might want to rethrow is if you're handling different exceptions, for e.g.

try
{
   ...
}
catch(SQLException sex)
{
   //Do Custom Logging 
   //Don't throw exception - swallow it here
}
catch(OtherException oex)
{
   //Do something else
   throw new WrappedException("Other Exception occured");
}
catch
{
   System.Diagnostics.Debug.WriteLine("Eeep! an error, not to worry, will be handled higher up the call stack");
   throw; //Chuck everything else back up the stack
}

yes you can rename pane names, and not only window names starting with tmux >= 2.3. Just type the following in your shell:

printf '\033]2;%s\033\\' 'title goes here'

you might need to add the following to your .tmux.conf to display pane names:

# Enable names for panes
set -g pane-border-status top

you can also automatically assign a name:

set -g pane-border-format "#P: #{pane_current_command}"

You are using word 'max' as an alias for your column. Try to:

MAX(id) as mymax ... WHERE ID - mymax

If your error event handler takes the three arguments (xmlhttprequest, textstatus, and message) when a timeout happens, the status arg will be 'timeout'.

Per the jQuery documentation:

Possible values for the second argument (besides null) are "timeout", "error", "notmodified" and "parsererror".

You can handle your error accordingly then.

I created this fiddle that demonstrates this.

$.ajax({
    url: "/ajax_json_echo/",
    type: "GET",
    dataType: "json",
    timeout: 1000,
    success: function(response) { alert(response); },
    error: function(xmlhttprequest, textstatus, message) {
        if(textstatus==="timeout") {
            alert("got timeout");
        } else {
            alert(textstatus);
        }
    }
});?

With jsFiddle, you can test ajax calls -- it will wait 2 seconds before responding. I put the timeout setting at 1 second, so it should error out and pass back a textstatus of 'timeout' to the error handler.

Hope this helps!

I had the same error message so I went googling a bit I managed to fix it with the following code.

df<-data.frame(words = unlist(words))

words is a character list.

This just in case somebody else needs the output to be a data frame.

VBScript's While loops don't support early exit. Use the Do loop for that:

num = 0
do while (num < 10)
  if (status = "Fail") then exit do
  num = num + 1
loop

You need to call the AddAddress method once for every recipient. Like so:

$mail->AddAddress('[email protected]', 'Person One');
$mail->AddAddress('[email protected]', 'Person Two');
// ..

Better yet, add them as Carbon Copy recipients.

$mail->AddCC('[email protected]', 'Person One');
$mail->AddCC('[email protected]', 'Person Two');
// ..

To make things easy, you should loop through an array to do this.

$recipients = array(
   '[email protected]' => 'Person One',
   '[email protected]' => 'Person Two',
   // ..
);
foreach($recipients as $email => $name)
{
   $mail->AddCC($email, $name);
}

Your clarification states: "I'm not going to use enums, I am not enumerating anything, just collecting some constants which are not related to each other in any way."

If the constants aren't related to each other at all, why do you want to collect them together? Put each constant in the class which it's most closely related to.

Here's an idea using Object.defineProperty which directly modifies the way a property is accessed.

Code:

function bind(base, el, varname) {
    Object.defineProperty(base, varname, {
        get: () => {
            return el.value;
        },
        set: (value) => {
            el.value = value;
        }
    })
}

Usage:

var p = new some_class();
bind(p,document.getElementById("someID"),'variable');

p.variable="yes"

fiddle: Here

String current = elements[i];
if (i != elements.length - 1) {
   String next = elements[i+1];
}

This makes sure you don't get an ArrayIndexOutOfBoundsException for the last element (there is no 'next' there). The other option is to iterate to i < elements.length - 1. It depends on your requirements.

Many thanks to @Ciro Santilli answer! I found that his choice for boundary is quite "unhappy" because all of thoose hyphens: in fact, as @Fake Name commented, when you are using your boundary inside request it comes with two more hyphens on front:

Example:

POST / HTTP/1.1
HOST: host.example.com
Cookie: some_cookies...
Connection: Keep-Alive
Content-Type: multipart/form-data; boundary=12345

--12345
Content-Disposition: form-data; name="sometext"

some text that you wrote in your html form ...
--12345
Content-Disposition: form-data; name="name_of_post_request" filename="filename.xyz"

content of filename.xyz that you upload in your form with input[type=file]
--12345
Content-Disposition: form-data; name="image" filename="picture_of_sunset.jpg"

content of picture_of_sunset.jpg ...
--12345--

I found on this w3.org page that is possible to incapsulate multipart/mixed header in a multipart/form-data, simply choosing another boundary string inside multipart/mixed and using that one to incapsulate data. At the end, you must "close" all boundary used in FILO order to close the POST request (like:

POST / HTTP/1.1
...
Content-Type: multipart/form-data; boundary=12345

--12345
Content-Disposition: form-data; name="sometext"

some text sent via post...
--12345
Content-Disposition: form-data; name="files"
Content-Type: multipart/mixed; boundary=abcde

--abcde
Content-Disposition: file; file="picture.jpg"

content of jpg...
--abcde
Content-Disposition: file; file="test.py"

content of test.py file ....
--abcde--
--12345--

Take a look at the link above.

User the below code for omit/excludes from creating setter and getter. value key should use inside @Getter and @Setter.

@Getter(value = AccessLevel.NONE)
@Setter(value = AccessLevel.NONE)
private int mySecret;

Spring boot 2.3 version, this is working well.

Why implement something which has already been implemented and test-proven?

C#, for one, has the NetTopologySuite which is the .NET port of the JTS Topology Suite.

Specifically, you have a severe flaw in your calculation. The earth is not a perfect sphere, and the approximation of the earth's radius might not cut it for precise measurements.

If in some cases it's acceptable to use homebrew functions, GIS is a good example of a field in which it is much preferred to use a reliable, test-proven library.

You can use:

ls -lh

Using this command you'll see the apparent space of the directory and true space of the files and in details the names of the files displayed, besides the size and creation date of each.

In many regex dialects, /[\S\s]*<Foobar>/ will do just what you want. Source

Running Docker inside Docker (a.k.a. dind), while possible, should be avoided, if at all possible. (Source provided below.) Instead, you want to set up a way for your main container to produce and communicate with sibling containers.

Jérôme Petazzoni — the author of the feature that made it possible for Docker to run inside a Docker container — actually wrote a blog post saying not to do it. The use case he describes matches the OP's exact use case of a CI Docker container that needs to run jobs inside other Docker containers.

Petazzoni lists two reasons why dind is troublesome:

1. It does not cooperate well with Linux Security Modules (LSM).
2. It creates a mismatch in file systems that creates problems for the containers created inside parent containers.

From that blog post, he describes the following alternative,

[The] simplest way is to just expose the Docker socket to your CI container, by bind-mounting it with the -v flag.

Simply put, when you start your CI container (Jenkins or other), instead of hacking something together with Docker-in-Docker, start it with:

docker run -v /var/run/docker.sock:/var/run/docker.sock ...

Now this container will have access to the Docker socket, and will therefore be able to start containers. Except that instead of starting "child" containers, it will start "sibling" containers.

You don't really need a regex.

printf "%s\n" *[!\ -~]*

This will show file names with control characters in their names, too, but I consider that a feature.

If you don't have any matching files, the glob will expand to just itself, unless you have nullglob set. (The expression does not match itself, so technically, this output is unambiguous.)

I wrote a useful method to call any action that takes a StreamWriter and write it out to a string instead. The method is like this;

static void SendStreamToString(Action<StreamWriter> action, out string destination)
{
    using (var stream = new MemoryStream())
    using (var writer = new StreamWriter(stream, Encoding.Unicode))
    {
        action(writer);
        writer.Flush();
        stream.Position = 0;
        destination = Encoding.Unicode.GetString(stream.GetBuffer(), 0, (int)stream.Length);
    }
}

And you can use it like this;

string myString;

SendStreamToString(writer =>
{
    var ints = new List<int> {1, 2, 3};
    writer.WriteLine("My ints");
    foreach (var integer in ints)
    {
        writer.WriteLine(integer);
    }
}, out myString);

I know this can be done much easier with a StringBuilder, the point is that you can call any method that takes a StreamWriter.

Thanks for the help everyone, rejecting the promise in .catch() solved my issue:

export function fetchVehicle(id) {
    return dispatch => {
        return dispatch({
            type: 'FETCH_VEHICLE',
            payload: fetch(`http://swapi.co/api/vehicles/${id}/`)
                .then(status)
                .then(res => res.json())    
                .catch(error => {
                    return Promise.reject()
                })
            });
    };
}


function status(res) {
    if (!res.ok) {
        throw new Error(res.statusText);
    }
    return res;
}

Here is another answer using Spring MVC's standaloneSetup. Using this way you can either autowire the controller class or Mock it.

    import static org.mockito.Mockito.mock;
    import static org.springframework.test.web.server.request.MockMvcRequestBuilders.get;
    import static org.springframework.test.web.server.result.MockMvcResultMatchers.content;
    import static org.springframework.test.web.server.result.MockMvcResultMatchers.status;

    import org.junit.Before;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.http.MediaType;
    import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
    import org.springframework.test.web.server.MockMvc;
    import org.springframework.test.web.server.setup.MockMvcBuilders;


    @RunWith(SpringJUnit4ClassRunner.class)
    @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
    public class DemoApplicationTests {

        final String BASE_URL = "http://localhost:8080/";

        @Autowired
        private HelloWorld controllerToTest;

        private MockMvc mockMvc;

        @Before
        public void setup() {
            this.mockMvc = MockMvcBuilders.standaloneSetup(controllerToTest).build();
        }

        @Test
        public void testSayHelloWorld() throws Exception{
            //Mocking Controller
            controllerToTest = mock(HelloWorld.class);

             this.mockMvc.perform(get("/")
                     .accept(MediaType.parseMediaType("application/json;charset=UTF-8")))
                     .andExpect(status().isOk())
                     .andExpect(content().mimeType(MediaType.APPLICATION_JSON));
        }

        @Test
        public void contextLoads() {
        }

    }

I had a case where I was entering text into a field after which the text would be removed automatically. Turned out it was due to some site functionality where you had to press the enter key after entering the text into the field. So, after sending your barcode text with sendKeys method, send 'enter' directly after it. Note that you will have to import the selenium Keys class. See my code below.

import org.openqa.selenium.Keys;

String barcode="0000000047166";
WebElement element_enter = driver.findElement(By.xpath("//*[@id='div-barcode']"));
element_enter.findElement(By.xpath("your xpath")).sendKeys(barcode);

element_enter.sendKeys(Keys.RETURN); // this will result in the return key being pressed upon the text field

I hope it helps..

Create a footer view layout consisting of text that you want to set as footer and then try

View footerView = ((LayoutInflater) ActivityContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.footer_layout, null, false);
ListView.addFooterView(footerView);

Layout for footer could be something like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:paddingTop="7dip"
    android:paddingBottom="7dip"
    android:orientation="horizontal"
    android:gravity="center">

    <LinearLayout 
        android:id="@+id/footer_layout" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:gravity="center"
        android:layout_gravity="center">

    <TextView 
        android:text="@string/footer_text_1" 
        android:id="@+id/footer_1" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:textSize="14dip" 
        android:textStyle="bold" 
        android:layout_marginRight="5dip" />
    </LinearLayout>
</LinearLayout> 

The activity class could be:

public class MyListActivty extends ListActivity {
    private Context context = null;
    private ListView list = null;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        list = (ListView)findViewById(android.R.id.list);

        //code to set adapter to populate list
        View footerView =  ((LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.footer_layout, null, false);
        list.addFooterView(footerView);
    }
}

To answer the question that is asked in the beginning:

Why can't the container component call the async API, and then dispatch the actions?

Keep in mind that those docs are for Redux, not Redux plus React. Redux stores hooked up to React components can do exactly what you say, but a Plain Jane Redux store with no middleware doesn't accept arguments to dispatch except plain ol' objects.

Without middleware you could of course still do

const store = createStore(reducer);
MyAPI.doThing().then(resp => store.dispatch(...));

But it's a similar case where the asynchrony is wrapped around Redux rather than handled by Redux. So, middleware allows for asynchrony by modifying what can be passed directly to dispatch.

That said, the spirit of your suggestion is, I think, valid. There are certainly other ways you could handle asynchrony in a Redux + React application.

One benefit of using middleware is that you can continue to use action creators as normal without worrying about exactly how they're hooked up. For example, using redux-thunk, the code you wrote would look a lot like

function updateThing() {
  return dispatch => {
    dispatch({
      type: ActionTypes.STARTED_UPDATING
    });
    AsyncApi.getFieldValue()
      .then(result => dispatch({
        type: ActionTypes.UPDATED,
        payload: result
      }));
  }
}

const ConnectedApp = connect(
  (state) => { ...state },
  { update: updateThing }
)(App);

which doesn't look all that different from the original — it's just shuffled a bit — and connect doesn't know that updateThing is (or needs to be) asynchronous.

If you also wanted to support promises, observables, sagas, or crazy custom and highly declarative action creators, then Redux can do it just by changing what you pass to dispatch (aka, what you return from action creators). No mucking with the React components (or connect calls) necessary.

SimpleORM, because it is straight-forward and no-magic. It defines all meta data structures in Java code and is very flexible.

SimpleORM provides similar functionality to Hibernate by mapping data in a relational database to Java objects in memory. Queries can be specified in terms of Java objects, object identity is aligned with database keys, relationships between objects are maintained and modified objects are automatically flushed to the database with optimistic locks.

But unlike Hibernate, SimpleORM uses a very simple object structure and architecture that avoids the need for complex parsing, byte code processing etc. SimpleORM is small and transparent, packaged in two jars of just 79K and 52K in size, with only one small and optional dependency (Slf4j). (Hibernate is over 2400K plus about 2000K of dependent Jars.) This makes SimpleORM easy to understand and so greatly reduces technical risk.

Maven version 3.2.1 added this feature, you can use the -pl switch (shortcut for --projects list) with ! or - (source) to exclude certain submodules.

mvn -pl '!submodule-to-exclude' install
mvn -pl -submodule-to-exclude install

Be careful in bash the character ! is a special character, so you either have to single quote it (like I did) or escape it with the backslash character.

The syntax to exclude multiple module is the same as the inclusion

mvn -pl '!submodule1,!submodule2' install
mvn -pl -submodule1,-submodule2 install

EDIT Windows does not seem to like the single quotes, but it is necessary in bash ; in Windows, use double quotes (thanks @awilkinson)

mvn -pl "!submodule1,!submodule2" install

In Android Studio, open "root_preferences.xml", select Design mode. Select the desired EditTextPreference preference, and under "All attributes", look for the "useSimpleSummaryProvider" attribute and set it to true. It will then show the current value.

As @Steven points out, a better way would be:

public void writeToFile(def directory, def fileName, def extension, def infoList) {
  new File("$directory/$fileName$extension").withWriter { out ->
    infoList.each {
      out.println it
    }
  }
}

As this handles the line separator for you, and handles closing the writer as well

(and doesn't open and close the file each time you write a line, which could be slow in your original version)

There is contextlib.redirect_stdout() function in Python 3.4:

import io
from contextlib import redirect_stdout

with io.StringIO() as buf, redirect_stdout(buf):
    print('redirected')
    output = buf.getvalue()

Here's code example that shows how to implement it on older Python versions.

Some additions to the shutdown and rundll32.exe shell32.dll,SHExitWindowsEx n commands.

LOGOFF - allows you to logoff user by sessionid or session name

PSShutdown - requires a download from windows sysinternals.

bootim.exe - windows 10/8 shutdown iu

change/chglogon - prevents new users to login or take another session

NET SESSION /DELETE - ends a session for user

wusa /forcerestart /quiet - windows update manager but also can restart the machine

tsdiscon - disconnects you

rdpinit - logs you out , though I cant find any documentation at the moment

You're not assigning the parsed float back to your value var:

value = parseFloat(value).toFixed(2);

should fix things up.

Just pass it as an argument of findAll:

>>> from BeautifulSoup import BeautifulSoup
>>> soup = BeautifulSoup("""
... <html>
... <head><title>My Title!</title></head>
... <body><table>
... <tr><td>First!</td>
... <td valign="top">Second!</td></tr>
... </table></body><html>
... """)
>>>
>>> soup.findAll('td')
[<td>First!</td>, <td valign="top">Second!</td>]
>>>
>>> soup.findAll('td', valign='top')
[<td valign="top">Second!</td>]

To find a very long list of words in big files, it can be more efficient to use egrep:

remove the last \n of A
$ tr '\n' '|' < A > A_regex
$ egrep -f A_regex B

A bit different from (but mostly like) @lesmana's answer

stty -echo
read password
stty echo

simply: hide echo do your stuff show echo

This might be a megabit to late but you can use continue 2.

Some php builds / configs will output this warning:

PHP Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"?

For example:

$i = 1;

while ($i <= 10) {
    $mod = $i % 4;
    echo "\r\n out $i";
    $i++;
    switch($mod)
    {
        case 0:
            break;
        case 2:
            continue;
            break;
        default:
            continue 2;
            break;
    }
    echo " is even";
}

This will output:

out 1
out 2 is even
out 3
out 4 is even
out 5
out 6 is even
out 7
out 8 is even
out 9
out 10 is even

Tested with PHP 5.5 and higher.

Best Practice - use singular. You have a list of items that make up an Enum. Using an item in the list sounds strange when you say Versions.1_0. It makes more sense to say Version.1_0 since there is only one 1_0 Version.

A BigDecimal is an exact way of representing numbers. A Double has a certain precision. Working with doubles of various magnitudes (say d1=1000.0 and d2=0.001) could result in the 0.001 being dropped alltogether when summing as the difference in magnitude is so large. With BigDecimal this would not happen.

The disadvantage of BigDecimal is that it's slower, and it's a bit more difficult to program algorithms that way (due to + - * and / not being overloaded).

If you are dealing with money, or precision is a must, use BigDecimal. Otherwise Doubles tend to be good enough.

I do recommend reading the javadoc of BigDecimal as they do explain things better than I do here :)

Because it enumerates through object fields, not indexes. You can get value with index "length" and I doubt you want this.

Please have a look at http://jsfiddle.net/2dJAN/59/

$("#submit").click(function () {
var url = $(location).attr('href');
$('#spn_url').html('<strong>' + url + '</strong>');
});

More efficient ways of concatenating strings are:

join():

Very efficent, but a bit hard to read.

>>> Section = 'C_type'  
>>> new_str = ''.join(['Sec_', Section]) # inserting a list of strings 
>>> print new_str 
>>> 'Sec_C_type'

String formatting:

Easy to read and in most cases faster than '+' concatenating

>>> Section = 'C_type'
>>> print 'Sec_%s' % Section
>>> 'Sec_C_type'

When using Java 7+ use the following method to download a file from the Internet and save it to some directory:

private static Path download(String sourceURL, String targetDirectory) throws IOException
{
    URL url = new URL(sourceURL);
    String fileName = sourceURL.substring(sourceURL.lastIndexOf('/') + 1, sourceURL.length());
    Path targetPath = new File(targetDirectory + File.separator + fileName).toPath();
    Files.copy(url.openStream(), targetPath, StandardCopyOption.REPLACE_EXISTING);

    return targetPath;
}

Documentation here.

You can specify the destination directory as second parameter of the git clone command, so you can do:

git clone <remote> .

This will clone the repository directly in the current local directory.

this error get if add decimal format. i just add

step="0.1"

I found you can do this easily via the Cloud Flare service.

Set up a bucket, enable webhosting on the bucket and point the desired CNAME to that endpoint via Cloudflare... and pay for the service of course... but $5-$20 VS $600 is much easier to stomach.

Full detail here: https://www.engaging.io/easy-way-to-configure-ssl-for-amazon-s3-bucket-via-cloudflare/

You can do like below to achieve your result:

import seaborn as sns
import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
....
....
#use filter with plot
#or
fg=sns.factorplot('Retailer country', data=df1[(df1['Retailer country']=='United States') | (df1['Retailer country']=='France')], kind='count')

fg.set_xlabels('Retailer country')
plt.show()


#also
#and
fg=sns.factorplot('Retailer country', data=df1[(df1['Retailer country']=='United States') & (df1['Year']=='2013')], kind='count')

fg.set_xlabels('Retailer country')
plt.show()

A simple solution for a delayed auto submit:

<body onload="setTimeout(function() { document.frm1.submit() }, 5000)">
   <form action="https://www.google.com" name="frm1">
      <input type="hidden" name="q" value="Hello world" />
   </form>
</body>

I'm think this has been answered before...but anyway, if you want to encrypt/decrypt data, you can't use SHA256

//Key
$key = 'SuperSecretKey';

//To Encrypt:
$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, 'I want to encrypt this', MCRYPT_MODE_ECB);

//To Decrypt:
$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $encrypted, MCRYPT_MODE_ECB);

The command you have typed is /startup.sh, if you have to start a shell script you have to fire the command as shown below:

$ cd /home/mpatil/softwares/apache-tomcat-7.0.47/bin
$ sh startup.sh 
or 
$ ./startup.sh 

Please try that, you also have to go to your tomcat's bin-folder (by using the cd-command) to execute this shell script. In your case this is /home/mpatil/softwares/apache-tomcat-7.0.47/bin.

In my case I was loading a user control dynamically in a page and both the page and user control had the content tags

<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

Removing this tag from the user control worked for me.

Use the following:

driver.findElement(By.id("id")).sendKeys(Keys.chord(Keys.CONTROL, "a", Keys.DELETE), "Your Value");

After many attempts, I found the junction approach more convenient. This is very similar on how this problem is solved in linux.

Basically it consists of having a link between c:\tools\java\default and the actual version of java you want to use as default in your system.

How to set it:

1. Download junction and make sure to put it in your PATH environment variable
2. Set your environment this way: - PATH pointing to ONLY to this jre c:\tools\java\default\bin - JAVA_HOME pointing to `c:\tools\java\default
3. Store all your jre-s in one folder like (if you do that in your Program FIles folder you may encounter some
   • C:\tools\Java\JRE_1.6
   • C:\tools\Java\JRE_1.7
   • C:\tools\Java\JRE_1.8
4. Open a command prompt and cd to C:\tools\Java\
5. Execute junction default JRE_1.6

This will create a junction (which is more or less like a symbolic link in linux) between C:\tools\java\default and C:\tools\java\JRE_1.6

In this way you will always have your default java in c:\tools\java\default.

If you then need to change your default java to the 1.8 version you just need to execute

junction -d default
junction default JRE_1.8 

Then you can have batch files to do that without command prompt like set_jdk8.bat set_jdk7.bat

As suggested from @????????????

EDIT: From windows vista, you can use mklink /J default JRE_1.8

What's the correct way to copy entire database (its structure and data) to a new one in pgAdmin?

Answer:

CREATE DATABASE newdb WITH TEMPLATE originaldb;

Tried and tested.

A VIP swap is an internal change to Azure's routers/load balancers, not an external DNS change. They're just routing traffic to go from one internal [set of] server[s] to another instead. Therefore the DNS info for mysite.cloudapp.net doesn't change at all. Therefore the change for people accessing via the IP bound to mysite.cloudapp.net (and CNAME'd by you) will see the change as soon as the VIP swap is complete.

You need to escape ", so it won't be interpreted as end of string. Use \ to escape it:

echo "<script>$('#edit_errors').html('<h3><em><font color=\"red\">Please Correct Errors Before Proceeding</font></em></h3>')</script>";

Read more: strings and escape sequences

If you use Spring you can:

1) create a log4j configuration file, e.g. "/WEB-INF/classes/log4j-myapp.properties" DO NOT name it "log4j.properties"

Example:

log4j.rootLogger=ERROR, stdout, rollingFile

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n

log4j.appender.rollingFile=org.apache.log4j.RollingFileAppender
log4j.appender.rollingFile.File=${myWebapp-instance-root}/WEB-INF/logs/application.log
log4j.appender.rollingFile.MaxFileSize=512KB
log4j.appender.rollingFile.MaxBackupIndex=10
log4j.appender.rollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.rollingFile.layout.ConversionPattern=%d %p [%c] - %m%n
log4j.appender.rollingFile.Encoding=UTF-8

We'll define "myWebapp-instance-root" later on point (3)

2) Specify config location in web.xml:

<context-param>
  <param-name>log4jConfigLocation</param-name>
  <param-value>/WEB-INF/classes/log4j-myapp.properties</param-value>
</context-param>

3) Specify a unique variable name for your webapp's root, e.g. "myWebapp-instance-root"

<context-param>
  <param-name>webAppRootKey</param-name>
  <param-value>myWebapp-instance-root</param-value>
</context-param>

4) Add a Log4jConfigListener:

<listener>
  <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>

If you choose a different name, remember to change it in log4j-myapp.properties, too.

See my article (Italian only... but it should be understandable): http://www.megadix.it/content/configurare-path-relativi-log4j-utilizzando-spring

UPDATE (2009/08/01) I've translated my article to English: http://www.megadix.it/node/136

For a one time change you can do this:

export EMAIL='[email protected]'; mutt -s "Elvis is dead" [email protected]

You can define a function type in interface in various ways,

1. general way:

export interface IParam {
  title: string;
  callback(arg1: number, arg2: number): number;
}

2. If you would like to use property syntax then,

export interface IParam {
  title: string;
  callback: (arg1: number, arg2: number) => number;
}

3. If you declare the function type first then,

type MyFnType = (arg1: number, arg2: number) => number;

export interface IParam {
  title: string;
  callback: MyFnType;
}

Using is very straight forward,

function callingFn(paramInfo: IParam):number {
    let needToCall = true;
    let result = 0;
   if(needToCall){
     result = paramInfo.callback(1,2);
    }

    return result;
}

4. You can declare a function type literal also , which mean a function can accept another function as it's parameter. parameterize function can be called as callback also.

export interface IParam{
  title: string;
  callback(lateCallFn?:
             (arg1:number,arg2:number)=>number):number;

}

$ foo="/some/directory/file"
$ [ ${foo:0:1} == "/" ] && echo 1 || echo 0
1
$ foo="[email protected]:/some/directory/file"
$ [ ${foo:0:1} == "/" ] && echo 1 || echo 0
0

Give a class for eg: scroll to the textarea tag. And in the css add this property -

.scroll::-webkit-scrollbar {
   display: none;
 }

<textarea class='scroll'></textarea>

It worked for without missing the scroll part

Give the name to both of the buttons and Get the check the value from form.

<div>
   <input name="submitButton" type="submit" value="Register" />
</div>

<div>
   <input name="cancelButton" type="submit" value="Cancel" />
</div>

On controller side :

public ActionResult Save(FormCollection form)
{
 if (this.httpContext.Request.Form["cancelButton"] !=null)
 {
   // return to the action;
 }

else if(this.httpContext.Request.Form["submitButton"] !=null)
 {
   // save the oprtation and retrun to the action;
 }
}

Hope this helps you or someone else

enum class EnumClass : int //set size for enum
{
    Zero, One, Two, Three, Four
};

union Union //This will allow us to convert
{
    EnumClass ec;
    int i;
};

int main()
{
using namespace std;

//convert from strongly typed enum to int

Union un2;
un2.ec = EnumClass::Three;

cout << "un2.i = " << un2.i << endl;

//convert from int to strongly typed enum
Union un;
un.i = 0; 

if(un.ec == EnumClass::Zero) cout << "True" << endl;

return 0;
}

You can verify the number of visible cells using this function:

- (NSArray *)visibleCells

This method will return an array with the cells that are visible, so you can count the number of objects in this array and compare with the number of objects in your table.. if it's equal.. you can disable the scrolling using:

tableView.scrollEnabled = NO;

As @Ginny mentioned.. we would can have problems with partially visible cells, so this solution works better in this case:

tableView.scrollEnabled = (tableView.contentSize.height <= CGRectGetHeight(tableView.frame));

In case you are using autoLayout this solution do the job:

tableView.alwaysBounceVertical = NO.

The "normal" way is to:

• Go to the Beautiful Soup web site, http://www.crummy.com/software/BeautifulSoup/
• Download the package
• Unpack it
• In a Terminal window, cd to the resulting directory
• Type python setup.py install

Another solution is to use easy_install. Go to http://peak.telecommunity.com/DevCenter/EasyInstall), install the package using the instructions on that page, and then type, in a Terminal window:

easy_install BeautifulSoup4
# for older v3:
# easy_install BeautifulSoup

easy_install will take care of downloading, unpacking, building, and installing the package. The advantage to using easy_install is that it knows how to search for many different Python packages, because it queries the PyPI registry. Thus, once you have easy_install on your machine, you install many, many different third-party packages simply by one command at a shell.

Or

jar xvf myproject.war

I fixed this by making sure that that OpenSSL was installed on my machine and then adding this to my php.ini:

openssl.cafile=/usr/local/etc/openssl/cert.pem

Here is code to render arbitrary HTML into a canvas:

function render_html_to_canvas(html, ctx, x, y, width, height) {
    var xml = html_to_xml(html);
    xml = xml.replace(/\#/g, '%23');
    var data = "data:image/svg+xml;charset=utf-8,"+'<svg xmlns="http://www.w3.org/2000/svg" width="'+width+'" height="'+height+'">' +
                        '<foreignObject width="100%" height="100%">' +
                        xml+
                        '</foreignObject>' +
                        '</svg>';

    var img = new Image();
    img.onload = function () {
        ctx.drawImage(img, x, y);
    }
    img.src = data;
}

function html_to_xml(html) {
    var doc = document.implementation.createHTMLDocument('');
    doc.write(html);

    // You must manually set the xmlns if you intend to immediately serialize     
    // the HTML document to a string as opposed to appending it to a
    // <foreignObject> in the DOM
    doc.documentElement.setAttribute('xmlns', doc.documentElement.namespaceURI);

    // Get well-formed markup
    html = (new XMLSerializer).serializeToString(doc.body);
    return html;
}

example:

const ctx = document.querySelector('canvas').getContext('2d');
const html = `
<p>this
<p>is <span style="color:red; font-weight: bold;">not</span>
<p><i>xml</i>!
<p><img src="data:image/png;base64,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">`;
render_html_to_canvas(html, ctx, 0, 0, 300, 150);


function render_html_to_canvas(html, ctx, x, y, width, height) {
  var data = "data:image/svg+xml;charset=utf-8," + '<svg xmlns="http://www.w3.org/2000/svg" width="' + width + '" height="' + height + '">' +
    '<foreignObject width="100%" height="100%">' +
    html_to_xml(html) +
    '</foreignObject>' +
    '</svg>';

  var img = new Image();
  img.onload = function() {
    ctx.drawImage(img, x, y);
  }
  img.src = data;
}

function html_to_xml(html) {
  var doc = document.implementation.createHTMLDocument('');
  doc.write(html);

  // You must manually set the xmlns if you intend to immediately serialize     
  // the HTML document to a string as opposed to appending it to a
  // <foreignObject> in the DOM
  doc.documentElement.setAttribute('xmlns', doc.documentElement.namespaceURI);

  // Get well-formed markup
  html = (new XMLSerializer).serializeToString(doc.body);
  return html;
}

<canvas></canvas>

You can use the blade template engine:

@include('view.name') 

'view.name' would live in your main views folder:

// for laravel 4.X
app/views/view/name.blade.php  

// for laravel 5.X
resources/views/view/name.blade.php

Another example

@include('hello.world');

would display the following view

// for laravel 4.X
app/views/hello/world.blade.php

// for laravel 5.X
resources/views/hello/world.blade.php

Another example

@include('some.directory.structure.foo');

would display the following view

// for Laravel 4.X
app/views/some/directory/structure/foo.blade.php

// for Laravel 5.X
resources/views/some/directory/structure/foo.blade.php

So basically the dot notation defines the directory hierarchy that your view is in, followed by the view name, relative to app/views folder for laravel 4.x or your resources/views folder in laravel 5.x

ADDITIONAL

If you want to pass parameters: @include('view.name', array('paramName' => 'value'))

You can then use the value in your views like so <p>{{$paramName}}</p>

The NoReverseMatch error is saying that Django cannot find a matching url pattern for the url you've provided in any of your installed app's urls.

The NoReverseMatch exception is raised by django.core.urlresolvers when a matching URL in your URLconf cannot be identified based on the parameters supplied.

To start debugging it, you need to start by disecting the error message given to you.

• NoReverseMatch at /my_url/

  This is the url that is currently being rendered, it is this url that your application is currently trying to access but it contains a url that cannot be matched

• Reverse for 'my_url_name'

  This is the name of the url that it cannot find

• with arguments '()' and

  These are the non-keyword arguments its providing to the url

• keyword arguments '{}' not found.

  These are the keyword arguments its providing to the url

• n pattern(s) tried: []

  These are the patterns that it was able to find in your urls.py files that it tried to match against

Start by locating the code in your source relevant to the url that is currently being rendered - the url, the view, and any templates involved. In most cases, this will be the part of the code you're currently developing.

Once you've done this, read through the code in the order that django would be following until you reach the line of code that is trying to construct a url for your my_url_name. Again, this is probably in a place you've recently changed.

Now that you've discovered where the error is occuring, use the other parts of the error message to work out the issue.

The url name

• Are there any typos?
• Have you provided the url you're trying to access the given name?
• If you have set app_name in the app's urls.py (e.g. app_name = 'my_app') or if you included the app with a namespace (e.g. include('myapp.urls', namespace='myapp'), then you need to include the namespace when reversing, e.g. {% url 'myapp:my_url_name' %} or reverse('myapp:my_url_name').

Arguments and Keyword Arguments

The arguments and keyword arguments are used to match against any capture groups that are present within the given url which can be identified by the surrounding () brackets in the url pattern.

Assuming the url you're matching requires additional arguments, take a look in the error message and first take a look if the value for the given arguments look to be correct.

If they aren't correct:

• The value is missing or an empty string

  This generally means that the value you're passing in doesn't contain the value you expect it to be. Take a look where you assign the value for it, set breakpoints, and you'll need to figure out why this value doesn't get passed through correctly.

• The keyword argument has a typo

  Correct this either in the url pattern, or in the url you're constructing.

If they are correct:

• Debug the regex

  You can use a website such as regexr to quickly test whether your pattern matches the url you think you're creating, Copy the url pattern into the regex field at the top, and then use the text area to include any urls that you think it should match against.

  Common Mistakes:

  • Matching against the . wild card character or any other regex characters

    Remember to escape the specific characters with a \ prefix

  • Only matching against lower/upper case characters

    Try using either a-Z or \w instead of a-z or A-Z

• Check that pattern you're matching is included within the patterns tried

  If it isn't here then its possible that you have forgotten to include your app within the INSTALLED_APPS setting (or the ordering of the apps within INSTALLED_APPS may need looking at)

Django Version

In Django 1.10, the ability to reverse a url by its python path was removed. The named path should be used instead.

If you're still unable to track down the problem, then feel free to ask a new question that includes what you've tried, what you've researched (You can link to this question), and then include the relevant code to the issue - the url that you're matching, any relevant url patterns, the part of the error message that shows what django tried to match, and possibly the INSTALLED_APPS setting if applicable.

With Node 0.12, it's possible to do this synchronously now:

  var fs = require('fs');
  var path = require('path');

  // Buffer mydata
  var BUFFER = bufferFile('../public/mydata.png');

  function bufferFile(relPath) {
    return fs.readFileSync(path.join(__dirname, relPath)); // zzzz....
  }

fs is the file system. readFileSync() returns a Buffer, or string if you ask.

fs correctly assumes relative paths are a security issue. path is a work-around.

To load as a string, specify the encoding:

return fs.readFileSync(path,{ encoding: 'utf8' });

var temp = data.oldKey; // or data['oldKey']
data.newKey = temp;
delete data.oldKey;

Use Str() Function. It takes three arguments(the number, the number total characters to display, and the number of decimal places to display

  Select Str(12345.6789, 12, 3)

displays: ' 12345.679' ( 3 spaces, 5 digits 12345, a decimal point, and three decimal digits (679). - it rounds if it has to truncate, (unless the integer part is too large for the total size, in which case asterisks are displayed instead.)

for a Total of 12 characters, with 3 to the right of decimal point.

1. gitk --all
2. Select the first commit
3. Right click on the other, then diff selected → this

I usually like to have the following:

• bin (Binaries)
• doc (Documents)
• inf (Information)
• lib (Libraries)
• res (Resources)
• src (Source)
• tst (Test)

These may be considered unconventional, but I find it to be a very nice way to organize things.

System.Windows.Forms.MessageBox.Show("My message here");

Make sure the System.Windows.Forms assembly is referenced your project.

The following is a nice expedient solution that works with GitHub for checking out the PR branch from another user's fork. You need to know the pull request ID (which GitHub displays along with the PR title).

Example:

Fixing your insecure code #8
alice wants to merge 1 commit into your_repo:master from her_repo:branch

git checkout -b <branch>
git pull origin pull/8/head

Substitute your remote if different from origin.
Substitute 8 with the correct pull request ID.

In Xcode 5 this has been moved to:

Xcode>Preferences>Accounts>View Details button>

How about this:

$.getJSON(_spPageContextInfo.webServerRelativeUrl + "/_api/web/currentuser")
.done(function(data){ 
    console.log(data.Title);
})
.fail(function() { console.log("Failed")});

I am adding this for completeness as this post hits high in Google search results.

You can actually copy all from a regex search, just not in one step.

1. Use Mark under Search and enter the regex in Find What.
2. Select Bookmark Line and click Mark All.
3. Click Search -> Bookmark -> Copy Bookmarked Lines.
4. Paste into a new document.
5. You may need to remove some unwanted text in the line that was not part of the regex with a search and replace.

This can be done easily using ·. You can color or size the dot according to the tags you wrap it with. For example, try and run this

<h2> I &middot; love &middot; Coding </h2>

In some extent, You CAN trigger HTML5 form validation and show hints to user without submitting the form!

Two button, one for validate, one for submit

Set a onclick listener on the validate button to set a global flag(say justValidate) to indicate this click is intended to check the validation of the form.

And set a onclick listener on the submit button to set the justValidate flag to false.

Then in the onsubmit handler of the form, you check the flag justValidate to decide the returning value and invoke the preventDefault() to stop the form to submit. As you know, the HTML5 form validation(and the GUI hint to user) is preformed before the onsubmit event, and even if the form is VALID you can stop the form submit by returning false or invoke preventDefault().

And, in HTML5 you have a method to check the form's validation: the form.checkValidity(), then in you can know if the form is validate or not in your code.

OK, here is the demo: http://jsbin.com/buvuku/2/edit

A great search engine for special characters that I recenetly found: amp-what?

You can even search by object name, like "arrow", "chess", etc...

I would like to expand on the Windows solution. Using IDLE with Python 2.7.5, When I run this code from file Expts.py:

import subprocess
r = subprocess.check_output('cmd.exe dir',shell=False) 
print r

...in the Python Shell, I ONLY get the output corresponding to "cmd.exe"; the "dir" part is ignored. HOWEVER, when I add a switch such as /K or /C ...

import subprocess
r = subprocess.check_output('cmd.exe /K dir',shell=False) 
print r

...then in the Python Shell, I get all that I expect including the directory listing. Woohoo !

Now, if I try any of those same things in DOS Python command window, without the switch, or with the /K switch, it appears to make the window hang because it is running a subprocess cmd.exe and it awaiting further input - type 'exit' then hit [enter] to release. But with the /K switch it works perfectly and returns you to the python prompt. Allrightee then.

Went a step further...I thought this was cool...When I instead do this in Expts.py:

import subprocess
r = subprocess.call("cmd.exe dir",shell=False) 
print r

...a new DOS window pops open and remains there displaying only the results of "cmd.exe" not of "dir". When I add the /C switch, the DOS window opens and closes very fast before I can see anything (as expected, because /C terminates when done). When I instead add the /K switch, the DOS window pops open and remain, AND I get all the output I expect including the directory listing.

If I try the same thing (subprocess.call instead of subprocess.check_output) from a DOS Python command window; all output is within the same window, there are no popup windows. Without the switch, again the "dir" part is ignored, AND the prompt changes from the python prompt to the DOS prompt (since a cmd.exe subprocess is running in python; again type 'exit' and you will revert to the python prompt). Adding the /K switch prints out the directory listing and changes the prompt from python to DOS since /K does not terminate the subprocess. Changing the switch to /C gives us all the output expected AND returns to the python prompt since the subprocess terminates in accordance with /C.

Sorry for the long-winded response, but I am frustrated on this board with the many terse 'answers' which at best don't work (seems because they are not tested - like Eduard F's response above mine which is missing the switch) or worse, are so terse that they don't help much at all (e.g., 'try subprocess instead of os.system' ... yeah, OK, now what ??). In contrast, I have provided solutions which I tested, and showed how there are subtle differences between them. Took a lot of time but... Hope this helps.

You probably need to declare the code below for height:100% to work for your divs

html, body {margin:0;padding:0;height:100%;}

fiddle: http://jsfiddle.net/5KYC3/

rand() will return numbers between 0 and RAND_MAX, which is at least 32767.

If you want to get a number within a range, you can just use modulo.

int value = rand() % 66; // 0-65

For more accuracy, check out this article. It discusses why modulo is not necessarily good (bad distributions, particularly on the high end), and provides various options.

First, since length always returns a non-negative number,

if ( length $name )

and

if ( length $name > 0 )

are equivalent.

If you are OK with replacing an undefined value with an empty string, you can use Perl 5.10's //= operator which assigns the RHS to the LHS unless the LHS is defined:

#!/usr/bin/perl

use feature qw( say );
use strict; use warnings;

my $name;

say 'nonempty' if length($name //= '');
say "'$name'";

Note the absence of warnings about an uninitialized variable as $name is assigned the empty string if it is undefined.

However, if you do not want to depend on 5.10 being installed, use the functions provided by Scalar::MoreUtils. For example, the above can be written as:

#!/usr/bin/perl

use strict; use warnings;

use Scalar::MoreUtils qw( define );

my $name;

print "nonempty\n" if length($name = define $name);
print "'$name'\n";

If you don't want to clobber $name, use default.

I went threw the same problem. None of the answers above worked for me, but i ended finding the solution on my own. The ipa file wasn't created because there was library files (libXXX.a) in Target-> Build Phases -> Copy Bundle with resources

Hope it will help someone :)

Solution using only javascript

function saveFile(fileName,urlFile){
    let a = document.createElement("a");
    a.style = "display: none";
    document.body.appendChild(a);
    a.href = urlFile;
    a.download = fileName;
    a.click();
    window.URL.revokeObjectURL(url);
    a.remove();
}

let textData = `El contenido del archivo
que sera descargado`;
let blobData = new Blob([textData], {type: "text/plain"});
let url = window.URL.createObjectURL(blobData);
//let url = "pathExample/localFile.png"; // LocalFileDownload
saveFile('archivo.txt',url);

You can do the HTML parsing but it is not at all recommended instead ask the website owners to provide web services then you can parse that information.

[ $? -eq 0 ] || exit $?; # Exit for nonzero return code

A smart way of doing this is to let PHP handle timezone differences and Daylight Savings Time (DST). Let me show you how to do this.

This function will generate all days from Monday until Friday, inclusive (handy for generating work week days):

class DateTimeUtilities {
    public static function getPeriodFromMondayUntilFriday($offset = 'now') {
        $now = new \DateTimeImmutable($offset, new \DateTimeZone('UTC'));
        $today = $now->setTime(0, 0, 1);

        $daysFromMonday = $today->format('N') - 1;

        $monday = $today->sub(new \DateInterval(sprintf('P%dD', $daysFromMonday)));
        $saturday = $monday->add(new \DateInterval('P5D'));

        return new \DatePeriod($monday, new \DateInterval('P1D'), $saturday);
    }
}

foreach (DateTimeUtilities::getPeriodFromMondayUntilFriday() as $day) {
    print $day->format('c');
    print PHP_EOL;
}

This will return datetimes Monday-Friday for current week. To do the same for an arbitrary date, pass a date as a parameter to DateTimeUtilities ::getPeriodFromMondayUntilFriday, thus:

foreach (DateTimeUtilities::getPeriodFromMondayUntilFriday('2017-01-02T15:05:21+00:00') as $day) {
    print $day->format('c');
    print PHP_EOL;
}

//prints 
//2017-01-02T00:00:01+00:00
//2017-01-03T00:00:01+00:00
//2017-01-04T00:00:01+00:00
//2017-01-05T00:00:01+00:00
//2017-01-06T00:00:01+00:00

Only interested in Monday, as the OP asked?

$monday = DateTimeUtilities::getPeriodFromMondayUntilFriday('2017-01-02T15:05:21+00:00')->getStartDate()->format('c');
print $monday;
// prints
//2017-01-02T00:00:01+00:00

git for-each-ref --format='%(authorname) %09 -%(refname)' | sort

If you are editing HTML in Notepad you should use "Save As" and alter the default "Encoding:" selection at the botom of the dialog to UTF-8. you should also include-

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

This un-ambiguously sets the correct character set and informs the browser.

Arrays in JavaScript don't use strings as keys. You will probably find that the value is there, but the key is an integer.

If you make Dict into an object, this will work:

var dict = {};
var addPair = function (myKey, myValue) {
    dict[myKey] = myValue;
};
var giveValue = function (myKey) {
    return dict[myKey];
};

The myKey variable is already a string, so you don't need more quotes.

Yes, there are special server side comments:

<%-- Text not sent to client  --%>

You do this in the initializer-list of the constructor of the subclass.

class Foo : public BaseClass {
public:
    Foo() : BaseClass("asdf") {}
};

Base-class constructors that take arguments have to be called there before any members are initialized.