Programs & Examples On #Django aggregation

By using jQuery to generate a new image with the image's src, and assigning the load method directly to that, the load method is successfully called when jQuery finishes generating the new image. This is working for me in IE 8, 9 and 10

$('<img />', {
    "src": $("#img").attr("src")
}).load(function(){
    // Do something
});

This is using Captain Cucumber's answer, but with 2 additions.

1) allowing the function to get non scientific notation numbers and just return them as is (so you can throw a lot of input that some of the numbers are 0.00003123 vs 3.123e-05 and still have function work.

2) added support for negative numbers. (in original function, a negative number would end up like 0.0000-108904 from -1.08904e-05)

def getExpandedScientificNotation(flt):
    was_neg = False
    if not ("e" in flt):
        return flt
    if flt.startswith('-'):
        flt = flt[1:]
        was_neg = True 
    str_vals = str(flt).split('e')
    coef = float(str_vals[0])
    exp = int(str_vals[1])
    return_val = ''
    if int(exp) > 0:
        return_val += str(coef).replace('.', '')
        return_val += ''.join(['0' for _ in range(0, abs(exp - len(str(coef).split('.')[1])))])
    elif int(exp) < 0:
        return_val += '0.'
        return_val += ''.join(['0' for _ in range(0, abs(exp) - 1)])
        return_val += str(coef).replace('.', '')
    if was_neg:
        return_val='-'+return_val
    return return_val

Here is an example that should give you some idea..

=IIF(First(Fields!Gender.Value,"vw_BrgyClearanceNew")="Female" and 
(First(Fields!CivilStatus.Value,"vw_BrgyClearanceNew")="Married"),false,true)

I think you have to identify the datasource name or the table name where your data is coming from.

The method signature for addMarker is:

public final Marker addMarker (MarkerOptions options)

So when you add a marker to a GoogleMap by specifying the options for the marker, you should save the Marker object that is returned (instead of the MarkerOptions object that you used to create it). This object allows you to change the marker state later on. When you are finished with the marker, you can call Marker.remove() to remove it from the map.

As an aside, if you only want to hide it temporarily, you can toggle the visibility of the marker by calling Marker.setVisible(boolean).

The Servlet 3.0 spec doesn't seem to provide a hint on how a container should order filters that have been declared via annotations. It is clear how about how to order filters via their declaration in the web.xml file, though.

Be safe. Use the web.xml file order filters that have interdependencies. Try to make your filters all order independent to minimize the need to use a web.xml file.

Kindly check Column ApplicationId datatype in Table aspnet_Users , ApplicationId column datatype should be uniqueidentifier .

*Your parameter order is passed wrongly , Parameter @id should be passed as first argument, but in your script it is placed in second argument..*

So error is raised..

Please refere sample script:

DECLARE @id uniqueidentifier
SET @id = NEWID()
Create Table #temp1(AppId uniqueidentifier)

insert into #temp1 values(@id)

Select * from #temp1

Drop Table #temp1

Regarding the answer from Michael Wyraz, where you use alt*DeploymentRepository in your settings.xml or command on the line, be careful if you are using version 3.0.0-M1 of the maven-deploy-plugin (which is the latest version at the time of writing), there is a bug in this version that could cause a server authentication issue.

A workaround is as follows. In the value:

releases::default::https://YOUR_NEXUS_URL/releases

you need to remove the default section, making it:

releases::https://YOUR_NEXUS_URL/releases

The prior version 2.8.2 does not have this bug.

I found a not-very-intuitive way to do this by using DUMP()

SELECT DUMP(A.NAME), 
       DUMP(A.surname), 
       DUMP(B.ordernum) 
FROM   customer A 
       JOIN orders B 
         ON A.id = B.id

It will return something like:

'Typ=1 Len=2: 0,48' for each column.

Type=1 means VARCHAR2/NVARCHAR2
Type=2 means NUMBER/FLOAT
Type=12 means DATE, etc.

You can refer to this oracle doc for information Datatype Code
or this for a simple mapping Oracle Type Code Mappings

After trying out ngGrid, ngTable, trNgGrid and Smart Table, I have come to the conclusion that Smart Table is by far the best implementation AngularJS-wise and Bootstrap-wise. It is built exactly the same way as you would build your own, naive table using standard angular. On top of that, they have added a few directives that help you do sorting, filtering etc. Their approach also makes it quite simple to extend yourself. The fact that they use the regular html tags for tables and the standard ng-repeat for the rows and standard bootstrap for formatting makes this my clear winner.

Their JS code depends on angular and your html can depend on bootstrap if you want to. The JS code is 4 kb in total and you can even easily pick stuff out of there if you want to reach an even smaller footprint.

Where the other grids will give you claustrophobia in different areas, Smart Table just feels open and to the point.

If you rely heavily on inline editing and other advanced features, you might get up and running quicker with ngTable for instance. However, you are free to add such features quite easily in Smart Table.

Don't miss Smart Table!!!

I have no relation to Smart Table, except from using it myself.

change() does not fire when a CSS class is added or removed or the definition changes. It fires in circumstances like when a select box value is selected or unselected.

I'm not sure if you mean if the CSS class definition is changed (which can be done programmatically but is tedious and not generally recommended) or if a class is added or removed to an element. There is no way to reliably capture this happening in either case.

You could of course create your own event for this but this can only be described as advisory. It won't capture code that isn't yours doing it.

Alternatively you could override/replace the addClass() (etc) methods in jQuery but this won't capture when it's done via vanilla Javascript (although I guess you could replace those methods too).

I like to use -v for verbose mode.
It'll give you the commit id, comments and all affected files.

svn log -v --limit 4

Example of output:

I added some migrations and deleted a test xml file
------------------------------------------------------------------------
r58687 | mr_x | 2012-04-02 15:31:31 +0200 (Mon, 02 Apr 2012) | 1 line Changed
paths: 
A /trunk/java/App/src/database/support    
A /trunk/java/App/src/database/support/MIGRATE    
A /trunk/java/App/src/database/support/MIGRATE/remove_device.sql
D /trunk/java/App/src/code/test.xml

How I work to automate Office / Excel:

1. Record a macro, this will generate a VBA template
2. Edit the VBA template so it will match my needs
3. Convert to VB.Net (A small step for men)
4. Leave it in VB.Net, Much more easy as doing it using C#

You can get that error if you have an object with the same name as the schema. For example:

create sequence s2;

begin
  s2.a;
end;
/

ORA-06550: line 2, column 6:
PLS-00302: component 'A' must be declared
ORA-06550: line 2, column 3:
PL/SQL: Statement ignored

When you refer to S2.MY_FUNC2 the object name is being resolved so it doesn't try to evaluate S2 as a schema name. When you just call it as MY_FUNC2 there is no confusion, so it works.

The documentation explains name resolution. The first piece of the qualified object name - S2 here - is evaluated as an object on the current schema before it is evaluated as a different schema.

It might not be a sequence; other objects can cause the same error. You can check for the existence of objects with the same name by querying the data dictionary.

select owner, object_type, object_name
from all_objects
where object_name = 'S2';

@tableName Table variables are alive for duration of the script running only i.e. they are only session level objects.

To test this, open two query editor windows under sql server management studio, and create table variables with same name but different structures. You will get an idea. The @tableName object is thus temporary and used for our internal processing of data, and it doesn't contribute to the actual database structure.

There is another type of table object which can be created for temporary use. They are #tableName objects declared like similar create statement for physical tables:

Create table #test (Id int, Name varchar(50))

This table object is created and stored in temp database. Unlike the first one, this object is more useful, can store large data and takes part in transactions etc. These tables are alive till the connection is open. You have to drop the created object by following script before re-creating it.

IF OBJECT_ID('tempdb..#test') IS NOT NULL
  DROP TABLE #test 

Hope this makes sense !

dir, err := os.Getwd()
    if err != nil {
        fmt.Println(err)
    }

this is for golang version: go version go1.13.7 linux/amd64

works for me, for go run main.go. If I run go build -o fileName, and put the final executable in some other folder, then that path is given while running the executable.

Consider adding

[appdefaults]
validate=false

to your /etc/krb5.conf. This can work around mismatching DNS.

you need littler (pronounced 'little r')

Dirk will be by in about 15 minutes to elaborate ;)

You can use MemberwiseClone

obj myobj2 = (obj)myobj.MemberwiseClone();

The copy is a shallow copy which means the reference properties in the clone are pointing to the same values as the original object but that shouldn't be an issue in your case as the properties in obj are of value types.

If you own the source code, you can also implement ICloneable

If you use use the Jquery from Google CDN, seriously it will improve the performance by 5 to 10 times the one which you add into your page, which gets downloaded. And also, you will get the latest version of the Jquery files.

The difference between both files i.e. jquery.js and jquery.min.js is just the file size, due to this the files are getting downloaded faster. :)

try this

$result = number_format($FloatNumber, 2);

Alternatively you can install the cx_Oracle module without the PIP using the following steps

1. Download the source from here https://pypi.python.org/pypi/cx_Oracle [cx_Oracle-6.1.tar.gz ]

2. Extract the tar using the following commands (Linux)

   gunzip cx_Oracle-6.1.tar.gz

   tar -xf cx_Oracle-6.1.tar

3. cd cx_Oracle-6.1

4. Build the module

   python setup.py build

5. Install the module

   python setup.py install

SELECT MAX("field name") AS ("primary key") FROM ("table name")

example:

SELECT MAX(brand) AS brandid FROM brand_tbl

Fetch the remote branch from the origin first.

git fetch origin remote_branch_name

Merge the remote branch to the local branch

git merge origin/remote_branch_name

you can use it directly with $scope instance

     $scope.init=function()
        {
            console.log("entered");
            data={};
            /*do whatever you want such as initialising scope variable,
              using $http instance etcc..*/
        }
       //simple call init function on controller
       $scope.init();

Agreed with the answer from sll, but experienced another hurdle which was having specified a namespace in the attributes, when receiving the return xml that namespace wasn't included and thus failed finding the class.

i had to find a workaround to specifying the namespace in the attribute and it worked.

ie.

[Serializable()]
    [XmlRoot("Patient", Namespace = "http://www.xxxx.org/TargetNamespace")]
    public class Patient

generated

<Patient xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.xxxx.org/TargetNamespace">

but I had to change it to

[Serializable()]
[XmlRoot("Patient")]
public class Patient

which generated to

<Patient xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

This solved my problem, hope it helps someone else.

I would use it at every opportunity. See When do you use Java's @Override annotation and why?

I just tested your snippet, and their is no double spacing line here. The end-of-line are \r\n, so what i would check in your case is:

1. your editor is reading correctly DOS file
2. no \n exist in values of your rows dict.

(Note that even by putting a value with \n, DictWriter automaticly quote the value.)

As of Bootstrap 4, you can use the spacing utilities.

Add for instance px-2 in the classes of the nav-item to increase the padding.

Use the literal escape character \

print("Here is, \"a quote\"")

The character basically means ignore the semantic context of my next charcter, and deal with it in its literal sense.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        //private void Form1_Load(object sender, EventArgs e)
        //{

        //    // Instantiate a new instance of Form1.
        //    Form1 f1 = new Form1();
        //    f1.Text = "zzzzzzz";

        //}
    }

    class MainApplication
    {
        public static void Main()
        {
            // Instantiate a new instance of Form1.
            Form1 f1 = new Form1();
            // Display a messagebox. This shows the application 
            // is running, yet there is nothing shown to the user. 
            // This is the point at which you customize your form.
            System.Windows.Forms.MessageBox.Show("The application "
               + "is running now, but no forms have been shown.");
            // Customize the form.
            f1.Text = "Running Form";
            // Show the instance of the form modally.
            f1.ShowDialog();
        }
    }

}

If you want a method like public void doSomething([Object implements Serializable]) you can just type it like this public void doSomething(Serializable serializableObject). You can now pass it any object that implements Serializable but using the serializableObject you only have access to the methods implemented in the object from the Serializable interface.

Locale-independent one liner to get any date format you like. I use it to generate archive names. Back quote option is needed because PowerShell command line is using single quotes.

:: Get date in yyyyMMdd_HHmm format to use with file name.
FOR /f "usebackq" %%i IN (`PowerShell ^(Get-Date^).ToString^('yyyy-MM-dd'^)`) DO SET DTime=%%i

:: Get formatted yesterday date.
FOR /f "usebackq" %%i IN (`PowerShell ^(Get-Date^).AddDays^(-1^).ToString^('yyyy-MM-dd'^)`) DO SET DTime=%%i

:: Show file name with the date.
echo Archive.%DTime%.zip

Two steps for me:

first:

make foo

then:

./foo

del *.* will only delete files, but not subdirectories. To nuke the contents of a directory, you can use this script:

@echo off
setlocal enableextensions
if {%1}=={} goto :HELP
if {%1}=={/?} goto :HELP
goto :START

:HELP
echo Usage: %~n0 directory-name
echo.
echo Empties the contents of the specified directory,
echo WITHOUT CONFIRMATION. USE EXTREME CAUTION!
goto :DONE

:START
pushd %1 || goto :DONE
rd /q /s . 2> NUL
popd

:DONE
endlocal

The pushd changes into the directory of which you want to delete the children. Then when rd asks to delete the current directory and all sub directories, the deletion of the sub directories succeed, but the deletion of the current directory fails - because we are in it. This produces an error which 2> NUL swallows. (2 being the error stream).

You get the warning because you did not assign a value to one, which is a pointer. This is undefined behavior.

You should declare it like this:

Vector* one = malloc(sizeof(Vector));

or like this:

Vector one;

in which case you need to replace -> operator with . like this:

one.a = 12;
one.b = 13;
one.c = -11;

Finally, in C99 and later you can use designated initializers:

Vector one = {
   .a = 12
,  .b = 13
,  .c = -11
};

If you'd like to use dynamic mapping, and don't want to clutter up your model with attributes, this approach worked for me

Usage:

var settings = new JsonSerializerSettings();
settings.DateFormatString = "YYYY-MM-DD";
settings.ContractResolver = new CustomContractResolver();
this.DataContext = JsonConvert.DeserializeObject<CountResponse>(jsonString, settings);

Logic:

public class CustomContractResolver : DefaultContractResolver
{
    private Dictionary<string, string> PropertyMappings { get; set; }

    public CustomContractResolver()
    {
        this.PropertyMappings = new Dictionary<string, string> 
        {
            {"Meta", "meta"},
            {"LastUpdated", "last_updated"},
            {"Disclaimer", "disclaimer"},
            {"License", "license"},
            {"CountResults", "results"},
            {"Term", "term"},
            {"Count", "count"},
        };
    }

    protected override string ResolvePropertyName(string propertyName)
    {
        string resolvedName = null;
        var resolved = this.PropertyMappings.TryGetValue(propertyName, out resolvedName);
        return (resolved) ? resolvedName : base.ResolvePropertyName(propertyName);
    }
}

Check out John Resig's pure JavaScript HTML parser.

EDIT: if you want the browser to parse the HTML for you, innerHTML is exactly what you want. From this SO question:

var tempDiv = document.createElement('div');
tempDiv.innerHTML = htmlString;

Quick Answer

Use index_col=False instead of index_col=None when you have delimiters at the end of each line to turn off index column inference and discard the last column.

More Detail

After looking at the data, there is a comma at the end of each line. And this quote (the documentation has been edited since the time this post was created):

index_col: column number, column name, or list of column numbers/names, to use as the index (row labels) of the resulting DataFrame. By default, it will number the rows without using any column, unless there is one more data column than there are headers, in which case the first column is taken as the index.

from the documentation shows that pandas believes you have n headers and n+1 data columns and is treating the first column as the index.

EDIT 10/20/2014 - More information

I found another valuable entry that is specifically about trailing limiters and how to simply ignore them:

If a file has one more column of data than the number of column names, the first column will be used as the DataFrame’s row names: ...

Ordinarily, you can achieve this behavior using the index_col option.

There are some exception cases when a file has been prepared with delimiters at the end of each data line, confusing the parser. To explicitly disable the index column inference and discard the last column, pass index_col=False: ...

Your script, when in your home directory will not be found when the shell looks at the $PATH environment variable to find your script.

The ./ says 'look in the current directory for my script rather than looking at all the directories specified in $PATH'.

See ?substring.

x <- 'hello stackoverflow'
substring(x, 1, 1)
## [1] "h"
substring(x, 2)
## [1] "ello stackoverflow"

The idea of having a pop method that both returns a value and has a side effect of updating the data stored in x is very much a concept from object-oriented programming. So rather than defining a pop function to operate on character vectors, we can make a reference class with a pop method.

PopStringFactory <- setRefClass(
  "PopString",
  fields = list(
    x = "character"  
  ),
  methods = list(
    initialize = function(x)
    {
      x <<- x
    },
    pop = function(n = 1)
    {
      if(nchar(x) == 0)
      {
        warning("Nothing to pop.")
        return("")
      }
      first <- substring(x, 1, n)
      x <<- substring(x, n + 1)
      first
    }
  )
)

x <- PopStringFactory$new("hello stackoverflow")
x
## Reference class object of class "PopString"
## Field "x":
## [1] "hello stackoverflow"
replicate(nchar(x$x), x$pop())
## [1] "h" "e" "l" "l" "o" " " "s" "t" "a" "c" "k" "o" "v" "e" "r" "f" "l" "o" "w"

This is quite simple: my_data is a before defined structure type. So you want to declare an my_data-array of some elements, as you would do with

char a[] = { 'a', 'b', 'c', 'd' };

So the array would have 4 elements and you initialise them as

a[0] = 'a', a[1] = 'b', a[1] = 'c', a[1] ='d';

This is called a designated initializer (as i remember right).

and it just indicates that data has to be of type my_dat and has to be an array that needs to store so many my_data structures that there is a structure with each type member name Peter, James, John and Mike.

Assuming that this is .d, you can write

$(this).closest('.a');

The closest method returns the innermost parent of your element that matches the selector.

No, the URL will always be updated when params are passed to transitionTo.

This happens on state.js:698 in ui-router.

For the new Indigo version, the Preferences change to "Refresh on access", and with a detail explanation : Automatically refresh external workspace changes on access via the workspace.

As “resource is out of sync with the filesystem” this problem happens when I use external workspace, so after I select this option, problem solved.

There is a rule in C++, for every new there is a delete.

1. Why won't the first case work? Seems the most straightforward use to use and delete a pointer? The error says the memory wasn't allocated but 'cout' returned an address.

new is never called. So the address that cout prints is the address of the memory location of myVar, or the value assigned to myPointer in this case. By writing:

myPointer = &myVar;

you say:

myPointer = The address of where the data in myVar is stored

2. On the second example the error is not being triggered but doing a cout of the value of myPointer still returns a memory address?

It returns an address that points to a memory location that has been deleted. Because first you create the pointer and assign its value to myPointer, second you delete it, third you print it. So unless you assign another value to myPointer, the deleted address will remain.

3. Does #3 really work? Seems to work to me, the pointer is no longer storing an address, is this the proper way to delete a pointer?

NULL equals 0, you delete 0, so you delete nothing. And it's logic that it prints 0 because you did:

myPointer = NULL;

which equals:

myPointer = 0;

I had use two different tools to debug procedures and functions:

1. dbForge - many functional mysql GUI.
2. MyDebugger - specialized tool for debugging ... handy tool for debugging.vote http://tinyurl.com/voteimg

I solved this problem with using the following steps:

1. File -> Import

2. Click General then select Existing Projects into Workspace

3. Click Next

4. Browse the directory of the project

5. Click Finish!

It worked for me

As mentioned by Madhur, you can use a bus for communication.

In case of using a Bus you have some options:

Otto event Bus library (deprecated in favor of RxJava)

http://square.github.io/otto/

Green Robot’s EventBus

http://greenrobot.org/eventbus/

NYBus (RxBus, implemented using RxJava. very similar to the EventBus)

https://github.com/MindorksOpenSource/NYBus

For your information, it really depends on your hosting provider.

In my case (Infomaniak), nothing above actually worked and I got infinite redirect loop.

The right way to do this is actually explained in their support site:

RewriteEngine on
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule (.*) https://your-domain.com/$1 [R=301,L]

So, always check with your hosting provider. Hopefully they have an article explaining how to do this. Otherwise, just ask the support.

Here's a bit of C code that should properly calculate perceived luminance.

// reverses the rgb gamma
#define inverseGamma(t) (((t) <= 0.0404482362771076) ? ((t)/12.92) : pow(((t) + 0.055)/1.055, 2.4))

//CIE L*a*b* f function (used to convert XYZ to L*a*b*)  http://en.wikipedia.org/wiki/Lab_color_space
#define LABF(t) ((t >= 8.85645167903563082e-3) ? powf(t,0.333333333333333) : (841.0/108.0)*(t) + (4.0/29.0))


float
rgbToCIEL(PIXEL p)
{
   float y;
   float r=p.r/255.0;
   float g=p.g/255.0;
   float b=p.b/255.0;

   r=inverseGamma(r);
   g=inverseGamma(g);
   b=inverseGamma(b);

   //Observer = 2°, Illuminant = D65 
   y = 0.2125862307855955516*r + 0.7151703037034108499*g + 0.07220049864333622685*b;

   // At this point we've done RGBtoXYZ now do XYZ to Lab

   // y /= WHITEPOINT_Y; The white point for y in D65 is 1.0

    y = LABF(y);

   /* This is the "normal conversion which produces values scaled to 100
    Lab.L = 116.0*y - 16.0;
   */
   return(1.16*y - 0.16); // return values for 0.0 >=L <=1.0
}

Another simple method is to convert it to json

console.log('connection : %j', myObject);

echo 5a | python -c "import sys; print chr(int(sys.stdin.read(),base=16))"

If you're in Spring-land you can use PathMatchingResourcePatternResolver;

  PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
  Resource[] resources = resolver.getResources("classpath*:some/package/name/*.class");

    Arrays.asList(resources).forEach(r->{
        ...
    });

I would avoid now using /// <reference path='moo.ts'/>but for external libraries where the definition file is not included into the package.

The reference path solves errors in the editor, but it does not really means the file needs to be imported. Therefore if you are using a gulp workflow or JSPM, those might try to compile separately each file instead of tsc -out to one file.

From Typescript 1.5

Just prefix what you want to export at the file level (root scope)

aLib.ts

{
export class AClass(){} // exported i.e. will be available for import
export valueZero = 0; // will be available for import
}

You can also add later in the end of the file what you want to export

{
class AClass(){} // not exported yet
valueZero = 0; // not exported yet
valueOne = 1; // not exported (and will not in this example)

export {AClass, valueZero} // pick the one you want to export
}

Or even mix both together

{
class AClass(){} // not exported yet
export valueZero = 0; // will be available for import
export {AClass} // add AClass to the export list
}

For the import you have 2 options, first you pick again what you want (one by one)

anotherFile.ts

{
import {AClass} from "./aLib.ts"; // you import only AClass
var test = new AClass();
}

Or the whole exports

{
import * as lib from "./aLib.ts"; // you import all the exported values within a "lib" object
var test = new lib.AClass();
}

Note regarding the exports: exporting twice the same value will raise an error { export valueZero = 0; export {valueZero}; // valueZero is already exported… }

One could think that xlsb has only advantages over xlsm. The fact that xlsm is XML-based and xlsb is binary is that when workbook corruption occurs, you have better chances to repair a xlsm than a xlsb.

Like the answer previous, but I'd put ::before, just for stacking purposes. If you want to include text over the overlay (a common use case), using ::before will should fix that.

.dimmed {
  position: relative;
}

.dimmed:before {
  content: " ";
  z-index: 10;
  display: block;
  position: absolute;
  height: 100%;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.5);
}

Easiest way to do this in VBA is to create a function that takes in an array, your new amount of rows, and new amount of columns.

Run the below function to copy in all of the old data back to the array after it has been resized.

 function dynamic_preserve(array1, num_rows, num_cols)

        dim array2 as variant

        array2 = array1

        reDim array1(1 to num_rows, 1 to num_cols)

        for i = lbound(array2, 1) to ubound(array2, 2)

               for j = lbound(array2,2) to ubound(array2,2)

                      array1(i,j) = array2(i,j)

               next j

        next i

        dynamic_preserve = array1

end function

You can also use the form recommended by ES6:

data => {
  this.results = [
    ...this.results,
    data.results,
  ];
  this._next = data.next;
},

This works if you initialize your array first (public results = [];); otherwise replace ...this.results, by ...this.results ? this.results : [],.

Hope this helps

String text = readFileAsString("textfile.txt").replaceAll("\n", "");

Even though the definition of trim() in oracle website is "Returns a copy of the string, with leading and trailing whitespace omitted."

the documentation omits to say that new line characters (leading and trailing) will also be removed.

In short String text = readFileAsString("textfile.txt").trim(); will also work for you. (Checked with Java 6)

'SELECT * FROM Employ where number = ' + parseInt(val, 10) + ';'

For example, if val is "10" then this will end up building the string:

"SELECT * FROM Employ where number = 10;"

Looking at the code I found the following differences between jquery.js and jquery.slim.js:

In the jquery.slim.js, the following features are removed:

1. jQuery.fn.extend
2. jquery.fn.load
3. jquery.each // Attach a bunch of functions for handling common AJAX events
4. jQuery.expr.filters.animated
5. ajax settings like jQuery.ajaxSettings.xhr, jQuery.ajaxPrefilter, jQuery.ajaxSetup, jQuery.ajaxPrefilter, jQuery.ajaxTransport, jQuery.ajaxSetup
6. xml parsing like jQuery.parseXML,
7. animation effects like jQuery.easing, jQuery.Animation, jQuery.speed

I would use virtualenv at your HOME directory.

$ sudo easy_install -U virtualenv
$ cd ~
$ virtualenv .
$ bin/pip ...

You could then also alter ~/.(login|profile|bash_profile), whichever is right for your shell to add ~/bin to your PATH and then that pip|python|easy_install would be the one used by default.

One interesting difference that seems worth noting is that while FirstOrDefault and Take(1) generate the same SQL (according to LINQPad, anyway), FirstOrDefault returns a value--the default--when there are no matching rows and Take(1) returns no results... at least in LINQPad.

In C# you can use the following to replace the single quote with a double quote:

 string sample = "St. Mary's";
 string escapedSample = sample.Replace("'", "''");

And the output will be:

"St. Mary''s"

And, if you are working with Sqlite directly; you can work with object instead of string and catch special things like DBNull:

private static string MySqlEscape(Object usString)
{
    if (usString is DBNull)
    {
        return "";
    }
    string sample = Convert.ToString(usString);
    return sample.Replace("'", "''");
}

Can you open the 3rd party XML source in Firefox and see what it auto-detects as encoding? Maybe they are using plain old ISO-8859-1, UTF-16 or something else.

If they declare it to be UTF-8, though, and serve something else, their feed is clearly broken. Working around such a broken feed feels horrible to me (even though sometimes unavoidable, I know).

If it's a simple case like "UTF-8 versus ISO-8859-1", you can also try your luck with mb_detect_encoding().

Nice explanation and example above. I found this (JSON.stringify() array bizarreness with Prototype.js) to complete the answer. Some sites implements its own toJSON with JSONFilters, so delete it.

if(window.Prototype) {
    delete Object.prototype.toJSON;
    delete Array.prototype.toJSON;
    delete Hash.prototype.toJSON;
    delete String.prototype.toJSON;
}

it works fine and the output of the test:

console.log(json);

Result:

"{"a":"test","b":["item","item2","item3"]}"

Im not sure you can do this, however you can try these additions in your gitconfig file.

Try to replace the kdiff3 from these values to point to visual studio code executable.

[merge] tool = kdiff3 [mergetool "kdiff3"] path = C:/Program Files/KDiff3/kdiff3.exe keepBackup = false trustExitCode = false

This is more of an xpath question, but like this, assuming the context is the parent element:

<xsl:value-of select="name/@attribute1" />

I used @qwertyjones's answer to automate logging into Oracle Agile with a public password.

I saved the login page as index.html, edited all the href= and action= fields to have the full URL to the Agile server.

The key <form> line needed to change from

<form autocomplete="off" name="MainForm" method="POST"
 action="j_security_check" 
 onsubmit="return false;" target="_top">

to

<form autocomplete="off" name="MainForm" method="POST"
 action="http://my.company.com:7001/Agile/default/j_security_check"   
 onsubmit="return false;" target="_top">

I also added this snippet to the end of the <body>

<script>
function checkCookiesEnabled(){ return true; }
document.MainForm.j_username.value = "joeuser";
document.MainForm.j_password.value = "abcdef";
submitLoginForm();
</script> 

I had to disable the cookie check by redefining the function that did the check, because I was hosting this from XAMPP and I didn't want to deal with it. The submitLoginForm() call was inspired by inspecting the keyPressEvent() function.

sudo gem install --no-user-install <gem-name>

will install your gem globally, i.e. it will be available to all user's contexts.

1. clone $args
2. push your args in new array
3. & $path $args

Demo:

$exePath = $env:NGINX_HOME + '/nginx.exe'
$myArgs = $args.Clone()

$myArgs += '-p'
$myArgs += $env:NGINX_HOME

& $exepath $myArgs

We're not necessarily talking theoretical limits here, we're talking about real world limits of the 2GB max file size AND database schema.

• Is your db a single table or multiple?
• How many columns does each table have?
• What are the datatypes?

The schema is on even footing with the row count in determining how many rows you can have.

We have used Access MDBs to store exports of MS-SQL data for statistical analysis by some of our corporate users. In those cases we've exported our core table structure, typically four tables with 20 to 150 columns varying from a hundred bytes per row to upwards of 8000 bytes per row. In these cases, we would bump up against a few hundred thousand rows of data were permissible PER MDB that we would ship them.

So, I just don't think that this question has an answer in absence of your schema.

You can try if/else this shorthand method:

// Syntax
if condition || else condition

// Example
let oldStr = "";
let newStr = oldStr || "Updated Value";
console.log(newStr); // Updated Value

// Example 2
let num1 = 2;
let num2 = num1 || 3;
console.log(num2);  // 2  cause num1 is a truthy

I had the same issue with VS2017. Following solved the issue.

1. Run Command prompt as Administrator.
2. Write following two commands which will update your registry.

reg add HKLM\Software\WOW6432Node\Microsoft\InetStp /v MajorVersion /t REG_DWORD /d 10 /f

reg add HKLM\Software\Microsoft\InetStp /v MajorVersion /t REG_DWORD /d 10 /f

This should solve your problem. Refer to this link for more details.

The best approach depends on the expected key distribution and number of collisions. If relatively few collisions are expected, it really doesn't matter which method is used. If lots of collisions are expected, then which to use depends on the cost of rehashing or probing vs. manipulating the extensible bucket data structure.

But here is source code example of An Hashmap Implementation in C

Steps to debug coredump using GDB:

Some generic help:

gdb start GDB, with no debugging les

gdb program begin debugging program

gdb program core debug coredump core produced by program

gdb --help describe command line options

1. First of all, find the directory where the corefile is generated.

2. Then use ls -ltr command in the directory to find the latest generated corefile.

3. To load the corefile use

   gdb binary path of corefile
   

   This will load the corefile.

4. Then you can get the information using the bt command.

   For a detailed backtrace use bt full.

5. To print the variables, use print variable-name or p variable-name

6. To get any help on GDB, use the help option or use apropos search-topic

7. Use frame frame-number to go to the desired frame number.

8. Use up n and down n commands to select frame n frames up and select frame n frames down respectively.

9. To stop GDB, use quit or q.

Note that reversing the whole string (either with the rbegin()/rend() range constructor or with std::reverse) and comparing it with the input would perform unnecessary work.

It's sufficient to compare the first half of the string with the latter half, in reverse:

#include <string>
#include <algorithm>
#include <iostream>
int main()
{
    std::string s;
    std::cin >> s;
    if( equal(s.begin(), s.begin() + s.size()/2, s.rbegin()) )
        std::cout << "is a palindrome.\n";
    else
        std::cout << "is NOT a palindrome.\n";
}

demo: http://ideone.com/mq8qK

I arrived at this question looking for a way to stream an open ended list of objects onto a System.IO.Stream and read them off the other end, without buffering the entire list before sending. (Specifically I'm streaming persisted objects from MongoDB over Web API.)

@Paul Tyng and @Rivers did an excellent job answering the original question, and I used their answers to build a proof of concept for my problem. I decided to post my test console app here in case anyone else is facing the same issue.

using System;
using System.Diagnostics;
using System.IO;
using System.IO.Pipes;
using System.Threading;
using System.Threading.Tasks;
using Newtonsoft.Json;

namespace TestJsonStream {
    class Program {
        static void Main(string[] args) {
            using(var writeStream = new AnonymousPipeServerStream(PipeDirection.Out, HandleInheritability.None)) {
                string pipeHandle = writeStream.GetClientHandleAsString();
                var writeTask = Task.Run(() => {
                    using(var sw = new StreamWriter(writeStream))
                    using(var writer = new JsonTextWriter(sw)) {
                        var ser = new JsonSerializer();
                        writer.WriteStartArray();
                        for(int i = 0; i < 25; i++) {
                            ser.Serialize(writer, new DataItem { Item = i });
                            writer.Flush();
                            Thread.Sleep(500);
                        }
                        writer.WriteEnd();
                        writer.Flush();
                    }
                });
                var readTask = Task.Run(() => {
                    var sw = new Stopwatch();
                    sw.Start();
                    using(var readStream = new AnonymousPipeClientStream(pipeHandle))
                    using(var sr = new StreamReader(readStream))
                    using(var reader = new JsonTextReader(sr)) {
                        var ser = new JsonSerializer();
                        if(!reader.Read() || reader.TokenType != JsonToken.StartArray) {
                            throw new Exception("Expected start of array");
                        }
                        while(reader.Read()) {
                            if(reader.TokenType == JsonToken.EndArray) break;
                            var item = ser.Deserialize<DataItem>(reader);
                            Console.WriteLine("[{0}] Received item: {1}", sw.Elapsed, item);
                        }
                    }
                });
                Task.WaitAll(writeTask, readTask);
                writeStream.DisposeLocalCopyOfClientHandle();
            }
        }

        class DataItem {
            public int Item { get; set; }
            public override string ToString() {
                return string.Format("{{ Item = {0} }}", Item);
            }
        }
    }
}

Note that you may receive an exception when the AnonymousPipeServerStream is disposed, I ignored this as it isn't relevant to the problem at hand.

Better late than never! Here is how we can do it(for learning purpose only)-

import java.util.List;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;

class SoftDrink {
    String name;
    String color;
    int volume; 

    SoftDrink (String name, String color, int volume) {
        this.name = name;
        this.color = color;
        this.volume = volume;
    }
}

public class ListItemComparision {
    public static void main (String...arg) {
        List<SoftDrink> softDrinkList = new ArrayList<SoftDrink>() ;
        softDrinkList .add(new SoftDrink("Faygo", "ColorOne", 4));
        softDrinkList .add(new SoftDrink("Fanta",  "ColorTwo", 3));
        softDrinkList .add(new SoftDrink("Frooti", "ColorThree", 2));       
        softDrinkList .add(new SoftDrink("Freshie", "ColorFour", 1));

        Collections.sort(softDrinkList, new Comparator() {
            @Override
            public int compare(Object softDrinkOne, Object softDrinkTwo) {
                //use instanceof to verify the references are indeed of the type in question
                return ((SoftDrink)softDrinkOne).name
                        .compareTo(((SoftDrink)softDrinkTwo).name);
            }
        }); 
        for (SoftDrink sd : softDrinkList) {
            System.out.println(sd.name + " - " + sd.color + " - " + sd.volume);
        }
        Collections.sort(softDrinkList, new Comparator() {
            @Override
            public int compare(Object softDrinkOne, Object softDrinkTwo) {
                //comparision for primitive int uses compareTo of the wrapper Integer
                return(new Integer(((SoftDrink)softDrinkOne).volume))
                        .compareTo(((SoftDrink)softDrinkTwo).volume);
            }
        });

        for (SoftDrink sd : softDrinkList) {
            System.out.println(sd.volume + " - " + sd.color + " - " + sd.name);
        }   
    }
}

If table does not have relation, just copy all in new table with row number and remove old and rename new one with old one.

Select   RowNum = ROW_NUMBER() OVER(ORDER BY(SELECT NULL)) , * INTO cdm.dbo.SALES2018 from 
(
select * from SALE2018) as SalesSource

In C++11 and beyond, you can use the back member function:

char ch = myStr.back();

In C++03, std::string::back is not available due to an oversight, but you can get around this by dereferencing the reverse_iterator you get back from rbegin:

char ch = *myStr.rbegin();

In both cases, be careful to make sure the string actually has at least one character in it! Otherwise, you'll get undefined behavior, which is a Bad Thing.

Hope this helps!

Another solution:

$target.find('.myPopOver').mouseenter(function()
{
    if($(this).data('popover') == null)
    {
        $(this).popover({
            animation: false,
            placement: 'right',
            trigger: 'manual',
            title: 'My Dynamic PopOver',
            html : true,
            template: $('#popoverTemplate').clone().attr('id','').html()
        });
    }
    $(this).popover('show');
    $.ajax({
        type: HTTP_GET,
        url: "/myURL"

        success: function(data)
        {
            //Clean the popover previous content
            $('.popover.in .popover-inner').empty();    

            //Fill in content with new AJAX data
            $('.popover.in .popover-inner').html(data);

        }
    });

});

$target.find('.myPopOver').mouseleave(function()
{
    $(this).popover('hide');
});

The idea here is to trigger manually the display of PopOver with mouseenter & mouseleave events.

On mouseenter, if there is no PopOver created for your item (if($(this).data('popover') == null)), create it. What is interesting is that you can define your own PopOver content by passing it as argument (template) to the popover() function. Do not forget to set the html parameter to true also.

Here I just create a hidden template called popovertemplate and clone it with JQuery. Do not forget to delete the id attribute once you clone it otherwise you'll end up with duplicated ids in the DOM. Also notice that style="display: none" to hide the template in the page.

<div id="popoverTemplateContainer" style="display: none">

    <div id="popoverTemplate">
        <div class="popover" >
            <div class="arrow"></div>
            <div class="popover-inner">
                //Custom data here
            </div>
        </div>
    </div>
</div>

After the creation step (or if it has been already created), you just display the popOver with $(this).popover('show');

Then classical Ajax call. On success you need to clean the old popover content before putting new fresh data from server. How can we get the current popover content ? With the .popover.in selector! The .in class indicates that the popover is currently displayed, that's the trick here!

To finish, on mouseleave event, just hide the popover.

You can sum up the values of a BigDecimal stream using a reusable Collector named summingUp:

BigDecimal sum = bigDecimalStream.collect(summingUp());

The Collector can be implemented like this:

public static Collector<BigDecimal, ?, BigDecimal> summingUp() {
    return Collectors.reducing(BigDecimal.ZERO, BigDecimal::add);
}

my solucion is compile with other version

build.gradle (app)

compileSdkVersion 21

Good Luck

As others have noted, there are some issues with the customizer.

I was having troubles with the glyphicons not showing either, as well as issues with the navbar layout.

I used the suggestion and uploaded the fonts from the full zip/overwrote the ones from the customized version and that fixed the icons issues.

I also pulled in the CDN CSS and javascript instead of my local copy from the CDN. This fixed my navbar issues.

So I recommend until you get the hang of Bootstrap, not to use the customized version since you might get some frustrating, unwanted results.

  :: short answer :
  :: perl -MCPAN -e "install PAR::Packer" 
  pp -o <<DesiredExeName>>.exe <<MyFancyPerlScript>> 

  :: long answer - create the following cmd , adjust vars to your taste ...
  :: next_line_is_templatized
  :: file:compile-morphus.1.2.3.dev.ysg.cmd v1.0.0
  :: disable the echo
  @echo off

  :: this is part of the name of the file - not used
  set _Action=run

  :: the name of the Product next_line_is_templatized
  set _ProductName=morphus

  :: the version of the current Product next_line_is_templatized
  set _ProductVersion=1.2.3

  :: could be dev , test , dev , prod next_line_is_templatized
  set _ProductType=dev

  :: who owns this Product / environment next_line_is_templatized
  set _ProductOwner=ysg

  :: identifies an instance of the tool ( new instance for this version could be created by simply changing the owner )   
  set _EnvironmentName=%_ProductName%.%_ProductVersion%.%_ProductType%.%_ProductOwner%

  :: go the run dir
  cd %~dp0

  :: do 4 times going up
  for /L %%i in (1,1,5) do pushd ..

  :: The BaseDir is 4 dirs up than the run dir
  set _ProductBaseDir=%CD%
  :: debug echo BEFORE _ProductBaseDir is %_ProductBaseDir%
  :: remove the trailing \

  IF %_ProductBaseDir:~-1%==\ SET _ProductBaseDir=%_ProductBaseDir:~0,-1%
  :: debug echo AFTER _ProductBaseDir is %_ProductBaseDir%
  :: debug pause


  :: The version directory of the Product 
  set _ProductVersionDir=%_ProductBaseDir%\%_ProductName%\%_EnvironmentName%

  :: the dir under which all the perl scripts are placed
  set _ProductVersionPerlDir=%_ProductVersionDir%\sfw\perl

  :: The Perl script performing all the tasks
  set _PerlScript=%_ProductVersionPerlDir%\%_Action%_%_ProductName%.pl

  :: where the log events are stored 
  set _RunLog=%_ProductVersionDir%\data\log\compile-%_ProductName%.cmd.log

  :: define a favorite editor 
  set _MyEditor=textpad

  ECHO Check the variables 
  set _
  :: debug PAUSE
  :: truncate the run log
  echo date is %date% time is %time% > %_RunLog%


  :: uncomment this to debug all the vars 
  :: debug set  >> %_RunLog%

  :: for each perl pm and or pl file to check syntax and with output to logs
  for /f %%i in ('dir %_ProductVersionPerlDir%\*.pl /s /b /a-d' ) do echo %%i >> %_RunLog%&perl -wc %%i | tee -a  %_RunLog% 2>&1


  :: for each perl pm and or pl file to check syntax and with output to logs
  for /f %%i in ('dir %_ProductVersionPerlDir%\*.pm /s /b /a-d' ) do echo %%i >> %_RunLog%&perl -wc %%i | tee -a  %_RunLog% 2>&1

  :: now open the run log
  cmd /c start /max %_MyEditor% %_RunLog%


  :: this is the call without debugging
  :: old 
  echo CFPoint1  OK The run cmd script %0 is executed >> %_RunLog%
  echo CFPoint2  OK  compile the exe file  STDOUT and STDERR  to a single _RunLog file >> %_RunLog%
  cd %_ProductVersionPerlDir%

  pp -o %_Action%_%_ProductName%.exe %_PerlScript% | tee -a %_RunLog% 2>&1 

  :: open the run log
  cmd /c start /max %_MyEditor% %_RunLog%

  :: uncomment this line to wait for 5 seconds
  :: ping localhost -n 5

  :: uncomment this line to see what is happening 
  :: PAUSE

  ::
  :::::::
  :: Purpose: 
  :: To compile every *.pl file into *.exe file under a folder 
  :::::::
  :: Requirements : 
  :: perl , pp , win gnu utils tee 
  :: perl -MCPAN -e "install PAR::Packer" 
  :: text editor supporting <<textEditor>> <<FileNameToOpen>> cmd call syntax
  :::::::
  :: VersionHistory
  :: 1.0.0 --- 2012-06-23 12:05:45 --- ysg --- Initial creation from run_morphus.cmd
  :::::::
  :: eof file:compile-morphus.1.2.3.dev.ysg.cmd v1.0.0

The solution for eclipse photon seems to be:

1. open ./eclipse/configuration/org.eclipse.equinox.simpleconfigurator/bundles.info
2. delete the lines starting with org.eclipse.jpt (might work to only remove org.eclipse.jpt.jpa)

You can use Arrow:

This is example from the docs, iterating over hours:

from arrow import Arrow

>>> start = datetime(2013, 5, 5, 12, 30)
>>> end = datetime(2013, 5, 5, 17, 15)
>>> for r in Arrow.range('hour', start, end):
...     print repr(r)
...
<Arrow [2013-05-05T12:30:00+00:00]>
<Arrow [2013-05-05T13:30:00+00:00]>
<Arrow [2013-05-05T14:30:00+00:00]>
<Arrow [2013-05-05T15:30:00+00:00]>
<Arrow [2013-05-05T16:30:00+00:00]>

To iterate over days, you can use like this:

>>> start = Arrow(2013, 5, 5)
>>> end = Arrow(2013, 5, 5)
>>> for r in Arrow.range('day', start, end):
...     print repr(r)

(Didn't check if you can pass datetime.date objects, but anyways Arrow objects are easier in general)

This assumes you have other languages already added in Language Support. (To check this, Menu > Language Support)

Now to make the keyboard language appear in the Panel:

• Menu > Keyboard > Layouts > Add (+)

The icon 'en' or your language should now appear in the right panel tray. Click it to switch language.

In previous Mint versions, the shortcut for switching language was LEFT SHIFT + CAPS.

It seems now there is no default, and it must be added:

• System settings > Keyboard > Layouts > Options > Switching to another layout

Keyboard Preferences is also accessible by right-clicking the language icon in the Panel.

If you just want to get the information of current directory, you can type:

pwd

and you don't need to use the Nautilus, or you can use a teamviewer software to remote connect to the computer, you can get everything you want.

the syntax is CONSTRAINT constraint_name PRIMARY KEY(col1,col2,col3) for example ::

CONSTRAINT pk_PersonID PRIMARY KEY (P_Id,LastName)

the above example will work if you are writting it while you are creating the table for example ::

CREATE TABLE person (
   P_Id int ,
   ............,
   ............,
   CONSTRAINT pk_PersonID PRIMARY KEY (P_Id,LastName)
);

to add this constraint to an existing table you need to follow the following syntax

ALTER TABLE table_name ADD CONSTRAINT constraint_name PRIMARY KEY (P_Id,LastName)

I caught this error a few days ago.

IN my case it was because I was using a Transaction on a Singleton.

.Net does not work well with Singleton as stated above.

My solution was this:

public class DbHelper : DbHelperCore
{
    public DbHelper()
    {
        Connection = null;
        Transaction = null;
    }

    public static DbHelper instance
    {
        get
        {
            if (HttpContext.Current is null)
                return new DbHelper();
            else if (HttpContext.Current.Items["dbh"] == null)
                HttpContext.Current.Items["dbh"] = new DbHelper();

            return (DbHelper)HttpContext.Current.Items["dbh"];
        }
    }

    public override void BeginTransaction()
    {
        Connection = new SqlConnection(Entity.Connection.getCon);
        if (Connection.State == System.Data.ConnectionState.Closed)
            Connection.Open();
        Transaction = Connection.BeginTransaction();
    }
}

I used HttpContext.Current.Items for my instance. This class DbHelper and DbHelperCore is my own class

Get image size with jQuery

function getMeta(url){
    $("<img/>",{
        load : function(){
            alert(this.width+' '+this.height);
        },
        src  : url
    });
}

Get image size with JavaScript

function getMeta(url){   
    var img = new Image();
    img.onload = function(){
        alert( this.width+' '+ this.height );
    };
    img.src = url;
}

Get image size with JavaScript (modern browsers, IE9+ )

function getMeta(url){   
    var img = new Image();
    img.addEventListener("load", function(){
        alert( this.naturalWidth +' '+ this.naturalHeight );
    });
    img.src = url;
}

Use the above simply as: getMeta( "http://example.com/img.jpg" );

https://developer.mozilla.org/en/docs/Web/API/HTMLImageElement

I would recommend ClosedXML -

You can turn a DataTable into an Excel worksheet with some very readable code:

XLWorkbook wb = new XLWorkbook();
DataTable dt = GetDataTableOrWhatever();
wb.Worksheets.Add(dt,"WorksheetName");

The developer is responsive and helpful. The project is actively developed, and the documentation is superb.

What you want to do is use the HTML5 attribute placeholder which lets you set a default value for your input box:

<input type="text" name="inputBox" placeholder="enter your text here">

This should achieve what you're looking for. However, be careful because the placeholder attribute is not supported in Internet Explorer 9 and earlier versions.

I think that the best solution would be to use Regular expressions. It's cleanest and probably the most effective. Regular Expressions are supported in all commonly used DB engines.

In MySql there is RLIKE operator so your query would be something like:
SELECT * FROM buckets WHERE bucketname RLIKE 'Stylus|2100'
I'm not very strong in regexp so I hope the expression is ok.

Edit
The RegExp should rather be:

SELECT * FROM buckets WHERE bucketname RLIKE '(?=.*Stylus)(?=.*2100)'

More on MySql regexp support:
http://dev.mysql.com/doc/refman/5.1/en/regexp.html#operator_regexp

Set the position to absolute; to move the caption area in the correct position

CSS

.post-content {
    background: none repeat scroll 0 0 #FFFFFF;
    opacity: 0.5;
    margin: -54px 20px 12px; 
    position: absolute;
}

Bootply

Here I am using custom function for finding the time elapsed since a date time.

echo Datetodays('2013-7-26 17:01:10');

function Datetodays($d) {

        $date_start = $d;
        $date_end = date('Y-m-d H:i:s');

        define('SECOND', 1);
        define('MINUTE', SECOND * 60);
        define('HOUR', MINUTE * 60);
        define('DAY', HOUR * 24);
        define('WEEK', DAY * 7);

        $t1 = strtotime($date_start);
        $t2 = strtotime($date_end);
        if ($t1 > $t2) {
            $diffrence = $t1 - $t2;
        } else {
            $diffrence = $t2 - $t1;
        }

        //echo "
".$date_end."  ".$date_start."  ".$diffrence;
        $results['major'] = array(); // whole number representing larger number in date time relationship
        $results1 = array();
        $string = '';

        $results['major']['weeks'] = floor($diffrence / WEEK);
        $results['major']['days'] = floor($diffrence / DAY);
        $results['major']['hours'] = floor($diffrence / HOUR);
        $results['major']['minutes'] = floor($diffrence / MINUTE);
        $results['major']['seconds'] = floor($diffrence / SECOND);

        //print_r($results);
        // Logic:
        // Step 1: Take the major result and transform it into raw seconds (it will be less the number of seconds of the difference)
        // ex: $result = ($results['major']['weeks']*WEEK)
        // Step 2: Subtract smaller number (the result) from the difference (total time)
        // ex: $minor_result = $difference - $result
        // Step 3: Take the resulting time in seconds and convert it to the minor format
        // ex: floor($minor_result/DAY)

        $results1['weeks'] = floor($diffrence / WEEK);
        $results1['days'] = floor((($diffrence - ($results['major']['weeks'] * WEEK)) / DAY));
        $results1['hours'] = floor((($diffrence - ($results['major']['days'] * DAY)) / HOUR));
        $results1['minutes'] = floor((($diffrence - ($results['major']['hours'] * HOUR)) / MINUTE));
        $results1['seconds'] = floor((($diffrence - ($results['major']['minutes'] * MINUTE)) / SECOND));

        //print_r($results1);

        if ($results1['weeks'] != 0 && $results1['days'] == 0) {
            if ($results1['weeks'] == 1) {
                $string = $results1['weeks'] . ' week ago';
            } else {
                if ($results1['weeks'] == 2) {
                    $string = $results1['weeks'] . ' weeks ago';
                } else {
                    $string = '2 weeks ago';
                }
            }
        } elseif ($results1['weeks'] != 0 && $results1['days'] != 0) {
            if ($results1['weeks'] == 1) {
                $string = $results1['weeks'] . ' week ago';
            } else {
                if ($results1['weeks'] == 2) {
                    $string = $results1['weeks'] . ' weeks ago';
                } else {
                    $string = '2 weeks ago';
                }
            }
        } elseif ($results1['weeks'] == 0 && $results1['days'] != 0) {
            if ($results1['days'] == 1) {
                $string = $results1['days'] . ' day ago';
            } else {
                $string = $results1['days'] . ' days ago';
            }
        } elseif ($results1['days'] != 0 && $results1['hours'] != 0) {
            $string = $results1['days'] . ' day and ' . $results1['hours'] . ' hours ago';
        } elseif ($results1['days'] == 0 && $results1['hours'] != 0) {
            if ($results1['hours'] == 1) {
                $string = $results1['hours'] . ' hour ago';
            } else {
                $string = $results1['hours'] . ' hours ago';
            }
        } elseif ($results1['hours'] != 0 && $results1['minutes'] != 0) {
            $string = $results1['hours'] . ' hour and ' . $results1['minutes'] . ' minutes ago';
        } elseif ($results1['hours'] == 0 && $results1['minutes'] != 0) {
            if ($results1['minutes'] == 1) {
                $string = $results1['minutes'] . ' minute ago';
            } else {
                $string = $results1['minutes'] . ' minutes ago';
            }
        } elseif ($results1['minutes'] != 0 && $results1['seconds'] != 0) {
            $string = $results1['minutes'] . ' minute and ' . $results1['seconds'] . ' seconds ago';
        } elseif ($results1['minutes'] == 0 && $results1['seconds'] != 0) {
            if ($results1['seconds'] == 1) {
                $string = $results1['seconds'] . ' second ago';
            } else {
                $string = $results1['seconds'] . ' seconds ago';
            }
        }
        return $string;
    }
?>

AtomicReference is also a solution to pass the error to the main thread .Is same approach like the one of Dan Cruz .

AtomicReference<Throwable> errorReference = new AtomicReference<>();

    Thread thread = new Thread() {
        public void run() {
            throw new RuntimeException("TEST EXCEPTION");

        }
    };
    thread.setUncaughtExceptionHandler((th, ex) -> {
        errorReference.set(ex);
    });
    thread.start();
    thread.join();
    Throwable newThreadError= errorReference.get();
    if (newThreadError!= null) {
        throw newThreadError;
    }  

The only change is that instead of creating a volatile variable you can use AtomicReference which did same thing behind the scenes.

Here you have an example styling checkboxes and radios using Font Awesome 5 free[

  /*General style*/_x000D_
  .custom-checkbox label, .custom-radio label {_x000D_
    position: relative;_x000D_
    cursor: pointer;_x000D_
    color: #666;_x000D_
    font-size: 30px;_x000D_
  }_x000D_
 .custom-checkbox input[type="checkbox"] ,.custom-radio input[type="radio"] {_x000D_
    position: absolute;_x000D_
    right: 9000px;_x000D_
  }_x000D_
   /*Custom checkboxes style*/_x000D_
  .custom-checkbox input[type="checkbox"]+.label-text:before {_x000D_
    content: "\f0c8";_x000D_
    font-family: "Font Awesome 5 Pro";_x000D_
    speak: none;_x000D_
    font-style: normal;_x000D_
    font-weight: normal;_x000D_
    font-variant: normal;_x000D_
    text-transform: none;_x000D_
    line-height: 1;_x000D_
    -webkit-font-smoothing: antialiased;_x000D_
    width: 1em;_x000D_
    display: inline-block;_x000D_
    margin-right: 5px;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:checked+.label-text:before {_x000D_
    content: "\f14a";_x000D_
    color: #2980b9;_x000D_
    animation: effect 250ms ease-in;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:disabled+.label-text {_x000D_
    color: #aaa;_x000D_
  }_x000D_
  .custom-checkbox input[type="checkbox"]:disabled+.label-text:before {_x000D_
    content: "\f0c8";_x000D_
    color: #ccc;_x000D_
  }_x000D_
_x000D_
   /*Custom checkboxes style*/_x000D_
  .custom-radio input[type="radio"]+.label-text:before {_x000D_
    content: "\f111";_x000D_
    font-family: "Font Awesome 5 Pro";_x000D_
    speak: none;_x000D_
    font-style: normal;_x000D_
    font-weight: normal;_x000D_
    font-variant: normal;_x000D_
    text-transform: none;_x000D_
    line-height: 1;_x000D_
    -webkit-font-smoothing: antialiased;_x000D_
    width: 1em;_x000D_
    display: inline-block;_x000D_
    margin-right: 5px;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:checked+.label-text:before {_x000D_
    content: "\f192";_x000D_
    color: #8e44ad;_x000D_
    animation: effect 250ms ease-in;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:disabled+.label-text {_x000D_
    color: #aaa;_x000D_
  }_x000D_
_x000D_
  .custom-radio input[type="radio"]:disabled+.label-text:before {_x000D_
    content: "\f111";_x000D_
    color: #ccc;_x000D_
  }_x000D_
_x000D_
  @keyframes effect {_x000D_
    0% {_x000D_
      transform: scale(0);_x000D_
    }_x000D_
    25% {_x000D_
      transform: scale(1.3);_x000D_
    }_x000D_
    75% {_x000D_
      transform: scale(1.4);_x000D_
    }_x000D_
    100% {_x000D_
      transform: scale(1);_x000D_
    }_x000D_
  }

<script src="https://kit.fontawesome.com/2a10ab39d6.js"></script>_x000D_
<div class="col-md-4">_x000D_
  <form>_x000D_
    <h2>1. Customs Checkboxes</h2>_x000D_
    <div class="custom-checkbox">_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check" checked> <span class="label-text">Option 01</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check"> <span class="label-text">Option 02</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check"> <span class="label-text">Option 03</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="checkbox" name="check" disabled> <span class="label-text">Option 04</span>_x000D_
                </label>_x000D_
      </div>_x000D_
    </div>_x000D_
  </form>_x000D_
</div>_x000D_
<div class="col-md-4">_x000D_
  <form>_x000D_
    <h2>2. Customs Radios</h2>_x000D_
    <div class="custom-radio">_x000D_
_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio" checked> <span class="label-text">Option 01</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio"> <span class="label-text">Option 02</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio"> <span class="label-text">Option 03</span>_x000D_
                </label>_x000D_
      </div>_x000D_
      <div class="form-check">_x000D_
        <label>_x000D_
                    <input type="radio" name="radio" disabled> <span class="label-text">Option 04</span>_x000D_
                </label>_x000D_
      </div>_x000D_
    </div>_x000D_
  </form>_x000D_
</div>

Here's a little oops that may catch some: It's pretty easy to accidentally have a filter typed in for the logcat output window (the text box with the magnifying glass) and forget about it. That which will potentially filter out all output and make it look like nothing is there.

There are several options, including using the method you demonstrate, With, and using a variable.

My preference is option 4 below: Dim a variable of type Worksheet and store the worksheet and call the methods on the variable or pass it to functions, however any of the options work.

Sub Test()
  Dim SheetName As String
  Dim SearchText As String
  Dim FoundRange As Range

  SheetName = "test"      
  SearchText = "abc"

  ' 0. If you know the sheet is the ActiveSheet, you can use if directly.
  Set FoundRange = ActiveSheet.UsedRange.Find(What:=SearchText)
  ' Since I usually have a lot of Subs/Functions, I don't use this method often.
  ' If I do, I store it in a variable to make it easy to change in the future or
  ' to pass to functions, e.g.: Set MySheet = ActiveSheet
  ' If your methods need to work with multiple worksheets at the same time, using
  ' ActiveSheet probably isn't a good idea and you should just specify the sheets.

  ' 1. Using Sheets or Worksheets (Least efficient if repeating or calling multiple times)
  Set FoundRange = Sheets(SheetName).UsedRange.Find(What:=SearchText)
  Set FoundRange = Worksheets(SheetName).UsedRange.Find(What:=SearchText)

  ' 2. Using Named Sheet, i.e. Sheet1 (if Worksheet is named "Sheet1"). The
  ' sheet names use the title/name of the worksheet, however the name must
  ' be a valid VBA identifier (no spaces or special characters. Use the Object
  ' Browser to find the sheet names if it isn't obvious. (More efficient than #1)
  Set FoundRange = Sheet1.UsedRange.Find(What:=SearchText)

  ' 3. Using "With" (more efficient than #1)
  With Sheets(SheetName)
    Set FoundRange = .UsedRange.Find(What:=SearchText)
  End With
  ' or possibly...
  With Sheets(SheetName).UsedRange
    Set FoundRange = .Find(What:=SearchText)
  End With

  ' 4. Using Worksheet variable (more efficient than 1)
  Dim MySheet As Worksheet
  Set MySheet = Worksheets(SheetName)
  Set FoundRange = MySheet.UsedRange.Find(What:=SearchText)

  ' Calling a Function/Sub
  Test2 Sheets(SheetName) ' Option 1
  Test2 Sheet1 ' Option 2
  Test2 MySheet ' Option 4

End Sub

Sub Test2(TestSheet As Worksheet)
    Dim RowIndex As Long
    For RowIndex = 1 To TestSheet.UsedRange.Rows.Count
        If TestSheet.Cells(RowIndex, 1).Value = "SomeValue" Then
            ' Do something
        End If
    Next RowIndex
End Sub

vertical-align applies to the elements being aligned, not their parent element. To vertically align the div's children, do this instead:

div > * {
    vertical-align:middle;  // Align children to middle of line
}

See: http://jsfiddle.net/dfmx123/TFPx8/1186/

NOTE: vertical-align is relative to the current text line, not the full height of the parent div. If you wanted the parent div to be taller and still have the elements vertically centered, set the div's line-height property instead of its height. Follow jsfiddle link above for an example.

Since there were no exact answers to my question, I made some investigation why my code doesn't work when there are other solutions that works, and decided to post what I found to complete the subject.
As it turns out:

"ssh uses direct TTY access to make sure that the password is indeed issued by an interactive keyboard user." sshpass manpage

which answers the question, why the pipes don't work in this case. The obvious solution was to create conditions so that ssh "thought" that it is run in the regular terminal and since it may be accomplished by simple posix functions, it is beyond what simple bash offers.

As other answers allude, Slack's rate limits make this tricky - the rate limit is relatively low for their chat.delete API at ~50 requests per minute.

The best strategy that respects the rate limit is to retrieve messages from the channel you want to clear, then delete the messages in batches under 50 that run on a minutely interval.

I've built a project containing an example of this batching that you can easily fork and deploy on Autocode - it lets you clear a channel via slash command (and allows you restrict access to the command to just certain users of course!). When you run /cmd clear in a channel, it marks that channel for clearing and runs the following code every minute until it deletes all the messages in the channel:

console.log(`About to clear ${messages.length} messages from #${channel.name}...`);

let deletionResults = await async.mapLimit(messages, 2, async (message) => {
  try {
    await lib.slack.messages['@0.6.1'].destroy({
      id: clearedChannelId,
      ts: message.ts,
      as_user: true
    });
    return {
      successful: true
    };
  } catch (e) {
    return {
      successful: false,
      retryable: e.message && e.message.indexOf('ratelimited') !== -1
    };
  }
});

You can view the full code and a guide to deploying your own version here: https://autocode.com/src/jacoblee/slack-clear-messages/

This method should be helpful..!

public Activity getActivityByContext(Context context){

if(context == null){
    return null;
    }

else if((context instanceof ContextWrapper) && (context instanceof Activity)){
        return (Activity) context;
    }

else if(context instanceof ContextWrapper){
        return getActivity(((ContextWrapper) context).getBaseContext());
    }

return null;

    }

I hope this helps.. Merry coding!

from pyspark.sql.functions import udf
from pyspark.sql.types import *
func_name = udf(
    lambda val: val, # do sth to val
    StringType()
)
df.withColumn('new_col', func_name(df.old_col))

Use TAB & TAB+SHIFT in a Specified container or element

Source

we will handle TAB & TAB+SHIFT key listeners first

        $(document).ready(function() {
            lastIndex = 0;
            $(document).keydown(function(e) {
                if (e.keyCode == 9) var thisTab = $(":focus").attr("tabindex");
                if (e.keyCode == 9) {
                    if (e.shiftKey) {
                        //Focus previous input
                        if (thisTab == startIndex) {
                            $("." + tabLimitInID).find('[tabindex=' + lastIndex + ']').focus();
                            return false;
                        }
                    } else {
                        if (thisTab == lastIndex) {
                            $("." + tabLimitInID).find('[tabindex=' + startIndex + ']').focus();
                            return false;
                        }
                    }
                }
            });
            var setTabindexLimit = function(x, fancyID) {
                console.log(x);
                startIndex = 1;
                lastIndex = x;
                tabLimitInID = fancyID;
                $("." + tabLimitInID).find('[tabindex=' + startIndex + ']').focus();
            }
            /*Taking last tabindex=10 */
            setTabindexLimit(10, "limitTablJolly");
        });

In HTML define tabindex

        <div class="limitTablJolly">
            <a tabindex=1>link</a>    
             <a tabindex=2>link</a>    
             <a tabindex=3>link</a>    
             <a tabindex=4>link</a>    
             <a tabindex=5>link</a>    
             <a tabindex=6>link</a>    
             <a tabindex=7>link</a>    
             <a tabindex=8>link</a>    
             <a tabindex=9>link</a>    
             <a tabindex=10>link</a>   
        </div>

to anyone looking for solution to the flickering/blinking issue when you already have DividerItemDecoration. i seem to have solved it like this:

override fun onDrawOver(...)
    {
        //code from before

       //do NOT return on null
        val childInContact = getChildInContact(recyclerView, currentHeader.bottom)
        //add null check
        if (childInContact != null && mHeaderListener.isHeader(recyclerView.getChildAdapterPosition(childInContact)))
        {
            moveHeader(...)
            return
        }
    drawHeader(...)
}

this seems to be working but can anyone confirm i did not break anything else?

Combine two answers above, I finally make it work. Just be careful that the first single quote for each string is a backtick (`) in file sendmail.mc.

#Change to your mail config directory:
cd /etc/mail

#Make a auth subdirectory
mkdir auth
chmod 700 auth  #maybe not, because I cannot apply cmd "cd auth" if I do so.

#Create a file with your auth information to the smtp server
cd auth
touch client-info

#In the file, put the following, matching up to your smtp server:
AuthInfo:your.isp.net "U:root" "I:user" "P:password"

#Generate the Authentication database, make both files readable only by root
makemap hash client-info < client-info
chmod 600 client-info
cd ..

#Add the following lines to sendmail.mc. Make sure you update your smtp server
#The first single quote for each string should be changed to a backtick (`) like this:
define(`SMART_HOST',`your.isp.net')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
FEATURE(`authinfo',`hash /etc/mail/auth/client-info')dnl

#run 
sudo sendmailconfig

Sometimes it's easier to think in terms of which fields to exclude.

If the number of fields not being cut (not being retained in the output) is small, it may be easier to use the --complement flag, e.g. to include all fields 1-20 except not 3, 7, and 12 -- do this:

cut -d, --complement -f3,7,12 <inputfile

Rather than

cut -d, -f-2,4-6,8-11,13-

First select current session sql_mode:

SELECT @@SESSION.sql_mode;

Then you will get something like that default value:

'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'

and then set sql_mode without 'NO_ZERO_DATE':

SET SESSION sql_mode = 'ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION';

If you have grants, you can do it also for GLOBAL:

SELECT @@GLOBAL.sql_mode;
SET GLOBAL sql_mode = '...';

If your table columns contains duplicate data and If you directly apply row_ number() and create PARTITION on column, there is chance to have result in duplicated row and with row number value.

To remove duplicate row, you need one more INNER query in from clause which eliminates duplicate rows and then it will give output to it's foremost outer FROM clause where you can apply PARTITION and ROW_NUMBER ().

As like below example:

SELECT DATE, STATUS, TITLE, ROW_NUMBER() OVER (PARTITION BY DATE, STATUS, TITLE ORDER BY QUANTITY ASC) AS Row_Num
FROM (
     SELECT DISTINCT <column names>...
) AS tbl

for asp.net core 3.1

Response.Headers.Add("Refresh", "2");// in secound

and

Response.Headers.Remove("Refresh");

    <?php
if (isset($_POST['birthdate'])) {
    $timestamp = strtotime($_POST['birthdate']); 
    $date=date('d',$timestamp);
    $month=date('m',$timestamp);
    $year=date('Y',$timestamp);
}
?>  

I have version 2.0.7 installed on Ubuntu and it defaulted to /var/lib/mongodb/ and that is also what was placed into my /etc/mongodb.conf file.

Following link might help you. Here's code from the following link.

reference : getting-the-client-ip-via-asp-net-web-api

using System.Net.Http;
using System.ServiceModel.Channels;
using System.Web;
using System.Web.Http;


namespace Trikks.Controllers.Api
{
    public class IpController : ApiController
    {
          public string GetIp()
          {
                return GetClientIp();
          }

          private string GetClientIp(HttpRequestMessage request = null)
          {
                request = request ?? Request;

                if (request.Properties.ContainsKey("MS_HttpContext"))
                {
                      return   ((HttpContextWrapper)request.Properties["MS_HttpContext"]).Request.UserHostAddress;
                }
                else if (request.Properties.ContainsKey(RemoteEndpointMessageProperty.Name))
                {
                     RemoteEndpointMessageProperty prop = (RemoteEndpointMessageProperty)request.Properties[RemoteEndpointMessageProperty.Name];
                     return prop.Address;
                }
                else if (HttpContext.Current != null)
                {
                    return HttpContext.Current.Request.UserHostAddress;
                }
                else
                {
                      return null;
                }
           }
     }
}

Another way of doing this is below.

reference: how-to-access-the-client-s-ip-address

For web hosted version

string clientAddress = HttpContext.Current.Request.UserHostAddress;

For self hosted

object property;
        Request.Properties.TryGetValue(typeof(RemoteEndpointMessageProperty).FullName, out property);
        RemoteEndpointMessageProperty remoteProperty = property as RemoteEndpointMessageProperty;

I highly suggest you to use an array instead of an object if you're doing react itteration, this is a syntax I use it ofen.

const rooms = this.state.array.map((e, i) =>(<div key={i}>{e}</div>))

To use the element, just place {rooms} in your jsx.

Where e=elements of the arrays and i=index of the element. Read more here. If your looking for itteration, this is the way to do it.

Shouldn't it be just the .list-group? See below,

<ul class="list-group">
  <li class="list-group-item active">Cras justo odio</li>
  <li class="list-group-item">Dapibus ac facilisis in</li>
  <li class="list-group-item">Morbi leo risus</li>
  <li class="list-group-item">Porta ac consectetur ac</li>
  <li class="list-group-item">Vestibulum at eros</li>
</ul>

Reference: Bootstrap 4 Basic Example of a List group

Here's one application that works for me. In our case...I wanted the Sales team to use SVN for certain docs (Price sheets and such)...but a bit over there head.

I setup an Auto SVN like this: - Created a REPO in my SVN server. - Checked out repo into a DB folder call AutoSVN. - I run EasySVN on my PC, which auto commits and updates the REPO.

With he 'Auto', there are no log comments, but not critical for these particular docs.

The Sales guys use the DB folder...and simply maintain the file name of those docs that need version control such as price sheets.

Locks still have uses in JS. In my experience I only needed to use locks to prevent spam clicking on elements making AJAX calls. If you have a loader set up for AJAX calls then this isn't required (as well as disabling the button after clicking). But either way here is what I used for locking:

var LOCK_INDEX = [];
function LockCallback(key, action, manual) {
    if (LOCK_INDEX[key])
        return;
    LOCK_INDEX[key] = true;
    action(function () { delete LOCK_INDEX[key] });
    if (!manual)
        delete LOCK_INDEX[key];
}

Usage:

Manual unlock (usually for XHR)

LockCallback('someKey',(delCallback) => { 
    //do stuff
    delCallback(); //Unlock method
}, true)

Auto unlock

LockCallback('someKey',() => { 
    //do stuff
})

Use .closest() with a selector:

var $div = $('#divid').closest('div[class^="div-a"]');

Does React re-render all components and sub-components every time setState is called?

By default - yes.

There is a method boolean shouldComponentUpdate(object nextProps, object nextState), each component has this method and it's responsible to determine "should component update (run render function)?" every time you change state or pass new props from parent component.

You can write your own implementation of shouldComponentUpdate method for your component, but default implementation always returns true - meaning always re-run render function.

Quote from official docs http://facebook.github.io/react/docs/component-specs.html#updating-shouldcomponentupdate

By default, shouldComponentUpdate always returns true to prevent subtle bugs when the state is mutated in place, but if you are careful to always treat the state as immutable and to read-only from props and state in render() then you can override shouldComponentUpdate with an implementation that compares the old props and state to their replacements.

Next part of your question:

If so, why? I thought the idea was that React only rendered as little as needed - when the state changed.

There are two steps of what we may call "render":

1. Virtual DOM renders: when render method is called it returns a new virtual dom structure of the component. As I mentioned before, this render method is called always when you call setState(), because shouldComponentUpdate always returns true by default. So, by default, there is no optimization here in React.

2. Native DOM renders: React changes real DOM nodes in your browser only if they were changed in the Virtual DOM and as little as needed - this is that great React's feature which optimizes real DOM mutation and makes React fast.

My solution might not be the cleanest but it should work with no problems. The logic is simply to create a static variable to store your data on the Service and update your view each second on your Activity.

Let's say that you have a String on your Service that you want to send it to a TextView on your Activity. It should look like this

Your Service:

public class TestService extends Service {
    public static String myString = "";
    // Do some stuff with myString

Your Activty:

public class TestActivity extends Activity {
    TextView tv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        tv = new TextView(this);
        setContentView(tv);
        update();
        Thread t = new Thread() {
            @Override
            public void run() {
                try {
                    while (!isInterrupted()) {
                        Thread.sleep(1000);
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                update();
                            }
                        });
                    }
                } catch (InterruptedException ignored) {}
            }
        };
        t.start();
        startService(new Intent(this, TestService.class));
    }
    private void update() {
        // update your interface here
        tv.setText(TestService.myString);
    }
}

Beautiful! Your solution was 99%... instead of "this.scrollY", I used "$(window).scrollTop()". What's even better is that this solution only requires the jQuery1.2.6 library (no additional libraries needed).

The reason I wanted that version in particular is because that's what ships with MVC currently.

Here's the code:

$(document).ready(function() {
    $("#topBar").css("position", "absolute");
});

$(window).scroll(function() {
    $("#topBar").css("top", $(window).scrollTop() + "px");
});

public static List<HtmlNode> GetTagsWithClass(string html,List<string> @class)
    {
        // LoadHtml(html);           
        var result = htmlDocument.DocumentNode.Descendants()
            .Where(x =>x.Attributes.Contains("class") && @class.Contains(x.Attributes["class"].Value)).ToList();          
        return result;
    }      

No magic involved, just subtract from the offset top of the element

$('html, body').animate({scrollTop: $('#contact').offset().top -100 }, 'slow');

MySQL has an undocumented syntax to sort nulls last. Place a minus sign (-) before the column name and switch the ASC to DESC:

SELECT * FROM tablename WHERE visible=1 ORDER BY -position DESC, id DESC

It is essentially the inverse of position DESC placing the NULL values last but otherwise the same as position ASC.

A good reference is here http://troels.arvin.dk/db/rdbms#select-order_by

I use LogParser to generate graphs and look for elements in IIS logs.

If you're seeing errors from library headers and you're using GCC, then you can disable warnings by including the headers using -isystem instead of -I.

Similar features exist in clang.

If you're using CMake, you can specify SYSTEM for include_directories.

If someone is using react, following will be useful:

https://stackoverflow.com/a/62111884/1015678

const valueSetter = Object.getOwnPropertyDescriptor(this.textInputRef, 'value').set;
const prototype = Object.getPrototypeOf(this.textInputRef);
const prototypeValueSetter = Object.getOwnPropertyDescriptor(prototype, 'value').set;
if (valueSetter && valueSetter !== prototypeValueSetter) {
    prototypeValueSetter.call(this.textInputRef, 'new value');
} else {
    valueSetter.call(this.textInputRef, 'new value');
}
this.textInputRef.dispatchEvent(new Event('input', { bubbles: true }));

The below code gives you the simple extrapolation module. k is the value to which the data set y has to be extrapolated based on the data set x. The numpy module is required.

 def extrapol(k,x,y):
        xm=np.mean(x);
        ym=np.mean(y);
        sumnr=0;
        sumdr=0;
        length=len(x);
        for i in range(0,length):
            sumnr=sumnr+((x[i]-xm)*(y[i]-ym));
            sumdr=sumdr+((x[i]-xm)*(x[i]-xm));

        m=sumnr/sumdr;
        c=ym-(m*xm);
        return((m*k)+c)

When using Windows, the comparison is cut short: memcache appears to be the only client available.

Add each line of the code to a variable and then write the variable to your inner HTML. See below:

var div = document.createElement('div');
div.setAttribute('class', 'post block bc2');
var str = "First Line";
str += "Second Line";
str += "So on, all of your lines";
div.innerHTML = str;
document.getElementById('posts').appendChild(div);

I've been a Vim user for years. I'm starting to find myself starting up Eclipse occasionally (using the vi plugin, which, I have to say, has a variety of issues). The main reason is that Java builds take quite a while...and they are just getting slower and slower with the addition of highly componentized build-frameworks like maven. So validating your changes tends to take quite a while, which for me seems to often lead to stacking up a bunch of compile issues I have to resolve later, and filtering through the commit messages takes a while.

When I get too big of a queue of compile issues, I fire up Eclipse. It lets me make cake-work of the changes. It's slow, brutal to use, and not nearly as nice of an editor as Vim is (I've been using Vim for nearly a decade, so it's second nature to me). I find for precision editing—needing to fix a specific bug, needing to refactor some specific bit of logic, or something else...I simply can't be as efficient at editing in Eclipse as I can in Vim.

Also a tip:

:set path=**
:chdir your/project/root

This makes ^wf on a classname a very nice feature for navigating a large project.

So anyway, the skinny is, when I need to add a lot of new code, Vim seems to slow me down simply due to the time spent chasing down compilation issues and similar stuff. When I need to find and edit specific sources, though, Eclipse feels like a sledge hammer. I'm still waiting for the magical IDE for Vim. There's been three major attempts I know of. There's a pure viml IDE-type plugin which adds a lot of features but seems impossible to use. There's eclim, which I've had a lot of trouble with. And there's a plugin for Eclipse which actually embeds Vim. The last one seems the most promising for real serious Java EE work, but it doesn't seem to work very well or really integrate all of Eclipse's features with the embedded Vim.

Things like add a missing import with a keystroke, hilight code with typing issues, etc, seems to be invaluable from your IDE when working on a large Java project.

$date = strtotime(date("Y-m-d", strtotime($date)) . " +1 day");

Or, simplier:

date("Y-m-d H:i:s", time()+((60*60)*24));

Nope, no difference. It's just syntactic sugar. Arrays.asList(..) creates an additional list.

you can also quote string

''+document.location+''.substring(2,3);

Thanks Darin, For me, to be able to post to the create method, It only worked after I modified the BindModel code to :

public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext)
{
    var displayFormat = bindingContext.ModelMetadata.DisplayFormatString;
    var value = bindingContext.ValueProvider.GetValue(bindingContext.ModelName);

    if (!string.IsNullOrEmpty(displayFormat) && value != null)
    {
        DateTime date;
        displayFormat = displayFormat.Replace("{0:", string.Empty).Replace("}", string.Empty);
        // use the format specified in the DisplayFormat attribute to parse the date
         if (DateTime.TryParse(value.AttemptedValue, CultureInfo.GetCultureInfo("en-GB"), DateTimeStyles.None, out date))
        {
            return date;
        }
        else
        {
            bindingContext.ModelState.AddModelError(
                bindingContext.ModelName,
                string.Format("{0} is an invalid date format", value.AttemptedValue)
            );
        }
    }

    return base.BindModel(controllerContext, bindingContext);
}

Hope this could help someone else...

The long answer is available here, so I'll give you the short one.

When you do this:

String str = "abc";

You are calling the intern() method on String. This method references an internal pool of String objects. If the String you called intern() on already resides in the pool, then a reference to that String is assigned to str. If not, then the new String is placed in the pool, and a reference to it is then assigned to str.

Given the following code:

String str = "abc";
String str2 = "abc";
boolean identity = str == str2;

When you check for object identity by doing == (you are literally asking: do these two references point to the same object?), you get true.

However, you don't need to intern() Strings. You can force the creation on a new Object on the Heap by doing this:

String str = new String("abc");
String str2 = new String("abc");
boolean identity = str == str2;

In this instance, str and str2 are references to different Objects, neither of which have been interned, so that when you test for Object identity using ==, you will get false.

In terms of good coding practice: do not use == to check for String equality, use .equals() instead.

Yes and it is used to prevent instantiation and subsequently overriding. This is most often used in singleton classes.

the thing that you assert on it,is called a mock object and everything else that just helped the test run, is a stub.

Here is how I resolved stated issue, hope it helps:

1. install python 3.7 using official website for python, while installing include installing PATH by checking it's box

2. after that open cmd (be sure to open it after step 1) and write: pip install jupyter ENTER

3. now you should be able to open jupyter notebook by using command: jupyter notebook

Seems simple, but it may as well help.

Since you are having trouble adjusting the height you might be able to use this. http://jsfiddle.net/uf9bx/1/

img{
width: 100%;
height: 100%;
max-height: 300px;
}

I'm not sure exactly what size or location you are putting your images but maybe this will help!

I had the problem due to an extra space in the name of the linked server. "SERVER1, 1234" instead of "SERVER1,1234"

Consider this code,

int some_int = 100;

while(some_int == 100)
{
   //your code
}

When this program gets compiled, the compiler may optimize this code, if it finds that the program never ever makes any attempt to change the value of some_int, so it may be tempted to optimize the while loop by changing it from while(some_int == 100) to something which is equivalent to while(true) so that the execution could be fast (since the condition in while loop appears to be true always). (if the compiler doesn't optimize it, then it has to fetch the value of some_int and compare it with 100, in each iteration which obviously is a little bit slow.)

However, sometimes, optimization (of some parts of your program) may be undesirable, because it may be that someone else is changing the value of some_int from outside the program which compiler is not aware of, since it can't see it; but it's how you've designed it. In that case, compiler's optimization would not produce the desired result!

So, to ensure the desired result, you need to somehow stop the compiler from optimizing the while loop. That is where the volatile keyword plays its role. All you need to do is this,

volatile int some_int = 100; //note the 'volatile' qualifier now!

In other words, I would explain this as follows:

volatile tells the compiler that,

"Hey compiler, I'm volatile and, you know, I can be changed by some XYZ that you're not even aware of. That XYZ could be anything. Maybe some alien outside this planet called program. Maybe some lightning, some form of interrupt, volcanoes, etc can mutate me. Maybe. You never know who is going to change me! So O you ignorant, stop playing an all-knowing god, and don't dare touch the code where I'm present. Okay?"

Well, that is how volatile prevents the compiler from optimizing code. Now search the web to see some sample examples.

Quoting from the C++ Standard ($7.1.5.1/8)

[..] volatile is a hint to the implementation to avoid aggressive optimization involving the object because the value of the object might be changed by means undetectable by an implementation.[...]

Related topic:

Does making a struct volatile make all its members volatile?

Considering Natalie's response, it seemed very good, but I had problems with a possible footer area, which could be hacked a little using clear: both.

Of course, a better solution would be to use flexbox or grid nowadays.

You can check this codepen if you want.

.section {
  width: 500px;
  margin: auto;
  overflow: hidden;
  padding: 0;
}

div {
  padding: 1rem;
}

.header {
  background: lightblue;
}

.sidebar {
  background: lightgreen;
  width: calc(25% - 1rem);
}

.sidebar-left {
  float: left;
  padding-bottom: 500rem;
  margin-bottom: -500rem;
}

.main {
  background: pink;
  width: calc(50% - 4rem);
  float: left;
  padding-bottom: 500rem;
  margin-bottom: -500rem;
}

.sidebar-right {
  float: right;
  padding-bottom: 500rem;
  margin-bottom: -500rem;
}

.footer {
  background: black;
  color: white;
  float: left;
  clear: both;
  margin-top: 1rem;
  width: calc(100% - 2rem);
}

<div class="section">
<div class="header">
  This is the header
</div>
<div class="sidebar sidebar-left">
  This sidebar could have a menu or something like that. It may not have the same length as the other
</div>
<div class="main">
  This is the main area. It should have the same length as the sidebars
</div>
<div class="sidebar sidebar-right">
  This is the other sidebar, it could have some ads
</div>
<div class="footer">
  Footer area
</div>
</div>

You can use a session object. It stores the cookies so you can make requests, and it handles the cookies for you

s = requests.Session() 
# all cookies received will be stored in the session object

s.post('http://www...',data=payload)
s.get('http://www...')

Docs: https://requests.readthedocs.io/en/master/user/advanced/#session-objects

You can also save the cookie data to an external file, and then reload them to keep session persistent without having to login every time you run the script:

How to save requests (python) cookies to a file?

The key here is keep option of wsimport. And it is configured using element in About keep from the wsimport documentation :

-keep                     keep generated files

The best way is Mikael Eriksson, if ROW_NUMBER() is available to you.

The next best is to join on a query, as per Cularis' answer.

Alternatively, the most simple and straight forward way is a correlated-sub-query in the WHERE clause.

SELECT
  *
FROM
  yourTable AS [data]
WHERE
  DateEntered = (SELECT MAX(DateEntered) FROM yourTable WHERE orderNo = [data].orderNo)

Or...

WHERE
  ID = (SELECT TOP 1 ID FROM yourTable WHERE orderNo = [data].orderNo ORDER BY DateEntered DESC)

We could look at error object for a property code that mentions the possible system error and in cases of ETIMEDOUT where a network call fails, act accordingly.

if (err.code === 'ETIMEDOUT') {
    console.log('My dish error: ', util.inspect(err, { showHidden: true, depth: 2 }));
}

The first is a list, the second is a tuple. Lists are mutable, tuples are not.

Take a look at the Data Structures section of the tutorial, and the Sequence Types section of the documentation.

Try the fat-jar extension. It will include all external jars inside the jar.

• Update url: http://kurucz-grafika.de/fatjar
• Homepage: http://fjep.sourceforge.net/

Original answer:

import os

for filename in os.listdir(directory):
    if filename.endswith(".asm") or filename.endswith(".py"): 
         # print(os.path.join(directory, filename))
        continue
    else:
        continue

Python 3.6 version of the above answer, using os - assuming that you have the directory path as a str object in a variable called directory_in_str:

import os

directory = os.fsencode(directory_in_str)
    
for file in os.listdir(directory):
     filename = os.fsdecode(file)
     if filename.endswith(".asm") or filename.endswith(".py"): 
         # print(os.path.join(directory, filename))
         continue
     else:
         continue

Or recursively, using pathlib:

from pathlib import Path

pathlist = Path(directory_in_str).glob('**/*.asm')
for path in pathlist:
     # because path is object not string
     path_in_str = str(path)
     # print(path_in_str)

• Use rglob to replace glob('**/*.asm') with rglob('*.asm')
  • This is like calling Path.glob() with '**/' added in front of the given relative pattern:

from pathlib import Path

pathlist = Path(directory_in_str).rglob('*.asm')
for path in pathlist:
     # because path is object not string
     path_in_str = str(path)
     # print(path_in_str)

Latest Git:

git merge --abort

This attempts to reset your working copy to whatever state it was in before the merge. That means that it should restore any uncommitted changes from before the merge, although it cannot always do so reliably. Generally you shouldn't merge with uncommitted changes anyway.

Prior to version 1.7.4:

git reset --merge

This is older syntax but does the same as the above.

Prior to version 1.6.2:

git reset --hard

which removes all uncommitted changes, including the uncommitted merge. Sometimes this behaviour is useful even in newer versions of Git that support the above commands.

You should really improve your JSON structure to fix your problem:

$scope.testData = [
   {name:"CData", order: 1},
   {name:"BData", order: 2},
   {name:"AData", order: 3},
]

Then you could do

<li ng-repeat="test in testData | orderBy:order">...</li>

The problem, I think, is that the (key, value) variables are not available to the orderBy filter, and you should not be storing data in your keys anyways

If you use custom formatting and need to concatenate those values elsewhere, you can copy them and Paste Special --> Values elsewhere in the sheet (or on a different sheet), then concatenate those values.

you should change cr_date(str) to datetime object then you 'll change the date to the specific format:

cr_date = '2013-10-31 18:23:29.000227'
cr_date = datetime.datetime.strptime(cr_date, '%Y-%m-%d %H:%M:%S.%f')
cr_date = cr_date.strftime("%m/%d/%Y")

Another option like Gavin Palmer answer is to use the .pem file but with a curl option

1. download the last updated .pem file from https://curl.haxx.se/docs/caextract.html and save it somewhere on your server(outside the public folder)

2. set the option in your code instead of the php.ini file.

In your code

curl_setopt($ch, CURLOPT_CAINFO, $_SERVER['DOCUMENT_ROOT'] .  "/../cacert-2017-09-20.pem");

NOTE: setting the cainfo in the php.ini like @Gavin Palmer did is better than setting it in your code like I did, because it will save a disk IO every time the function is called, I just make it like this in case you want to test the cainfo file on the fly instead of changing the php.ini while testing your function.

Notepad++ v6.5

1. Search menu -> Find... -> Mark tab -> Find what: your search text, check Bookmark Line, then Mark All. This will bookmark all the lines with the search term, you'll see the blue circles in the margin.

2. Then Search menu -> Bookmark -> Remove Bookmarked Lines. This will delete all the bookmarked lines.

You can also use a regex to search. This method won't result in a blank line like John's and will actually delete the line.

Older Versions

1. Search menu -> Find... -> Find what: your search text, check Bookmark Line and click Find All.
2. Then Search -> Bookmark -> Remove Bookmarked Lines

If you want some flexibility, create a class that watches the size of the list.

Here's a simple example. You would need to override all the methods that change the state of the list.

public class LimitedArrayList<T> extends ArrayList<T>{
    private int limit;

    public LimitedArrayList(int limit){
        this.limit = limit;
    }

    @Override
    public void add(T item){
        if (this.size() > limit)
            throw new ListTooLargeException();
        super.add(item);
    }

    // ... similarly for other methods that may add new elements ...

There are already answers saying use of Bit. I will add more to these answers.

You should use bit for representing Boolean values.

Remarks from MSDN article.

Bit can take a value of 1, 0, or NULL.

The SQL Server Database Engine optimizes storage of bit columns. If there are 8 or less bit columns in a table, the columns are stored as 1 byte. If there are from 9 up to 16 bit columns, the columns are stored as 2 bytes, and so on.

The string values TRUE and FALSE can be converted to bit values: TRUE is converted to 1 and FALSE is converted to 0.

Converting to bit promotes any nonzero value to 1.

Reference

Note: It is good practice to keep values as 1 and 0 only with data type NOT NULL

As Bit have values 1, 0 and NULL. See truth table for this. So plan values accordingly. It might add confusion by allowing NULL value for bit data type.

Reference

You need to iterate the 2d array in order to get the min value of each row, then you have to push any gotten min value to another array and finally you need to get the min value of the array where each min row value was pushed

def get_min_value(self, table):
    min_values = []
    for i in range(0, len(table)):
        min_value = min(table[i])
        min_values.append(min_value)

    return min(min_values)

The current version of bootstrap doesn't seem to work for this function anymore. If you download their sticky-footer-navbar example and place a large amount of content in the main body area the footer will get pushed down past the bottom of the viewport. It isn't sticky at all.

As I observed in my code. If once the value is fetched of body from Response, its become blank.

String str = response.body().string();  // {response:[]}

String str1  = response.body().string();  // BLANK

So I believe after fetching once the value from body, it become empty.

Suggestion : Store it in String, that can be used many time.

You want rows where that condition is true so you need a comma:

data[data$Ozone > 14, ]

You actually can't manually "free" memory in C, in the sense that the memory is released from the process back to the OS ... when you call malloc(), the underlying libc-runtime will request from the OS a memory region. On Linux, this may be done though a relatively "heavy" call like mmap(). Once this memory region is mapped to your program, there is a linked-list setup called the "free store" that manages this allocated memory region. When you call malloc(), it quickly looks though the free-store for a free block of memory at the size requested. It then adjusts the linked list to reflect that there has been a chunk of memory taken out of the originally allocated memory pool. When you call free() the memory block is placed back in the free-store as a linked-list node that indicates its an available chunk of memory.

If you request more memory than what is located in the free-store, the libc-runtime will again request more memory from the OS up to the limit of the OS's ability to allocate memory for running processes. When you free memory though, it's not returned back to the OS ... it's typically recycled back into the free-store where it can be used again by another call to malloc(). Thus, if you make a lot of calls to malloc() and free() with varying memory size requests, it could, in theory, cause a condition called "memory fragmentation", where there is enough space in the free-store to allocate your requested memory block, but not enough contiguous space for the size of the block you've requested. Thus the call to malloc() fails, and you're effectively "out-of-memory" even though there may be plenty of memory available as a total amount of bytes in the free-store.

You did not add # before id of the button. You do not have right selector in your jquery code. So jquery is never execute in your button click. its submitted your form directly not passing any ajax request.

See documentation: http://api.jquery.com/category/selectors/
its your friend.

Try this:

It seems that id: $("#Shareitem").val() is wrong if you want to pass the value of

<input type="hidden" name="id" value="" id="id">

you need to change this line:

id: $("#Shareitem").val()

by

id: $("#id").val()

All together:

 <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
    <script>
    $(document).ready(function(){
      $("#Shareitem").click(function(e){
          e.preventDefault();
        $.ajax({type: "POST",
                url: "/imball-reagens/public/shareitem",
                data: { id: $("#Shareitem").val(), access_token: $("#access_token").val() },
                success:function(result){
          $("#sharelink").html(result);
        }});
      });
    });
    </script>

Just to complete the other answers, I would like to quote Effective Java, 2nd Edition, by Joshua Bloch, chapter 10, Item 68 :

"Choosing the executor service for a particular application can be tricky. If you’re writing a small program, or a lightly loaded server, using Executors.new- CachedThreadPool is generally a good choice, as it demands no configuration and generally “does the right thing.” But a cached thread pool is not a good choice for a heavily loaded production server!

In a cached thread pool, submitted tasks are not queued but immediately handed off to a thread for execution. If no threads are available, a new one is created. If a server is so heavily loaded that all of its CPUs are fully utilized, and more tasks arrive, more threads will be created, which will only make matters worse.

Therefore, in a heavily loaded production server, you are much better off using Executors.newFixedThreadPool, which gives you a pool with a fixed number of threads, or using the ThreadPoolExecutor class directly, for maximum control."

If your compiler doesn't recognize

• System.Data.Entity.Infrastructure
• DbContext
• DbSet
• et alii,

make sure

1. you have Entity Framework 4.1 installed on your machine;

2. in your .csproj file, you have the following reference

   <Reference Include="EntityFramework, Version=4.1.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL" />
   

   within the element

   <ItemGroup>
     ...
   </ItemGroup>
   

   that houses references to other assemblies.

<label>Mobile Number(*)</label>
<input id="txtMobile" ng-maxlength="10" maxlength="10" Validate-phone  required  name='strMobileNo' ng-model="formModel.strMobileNo" type="text"  placeholder="Enter Mobile Number">
<span style="color:red" ng-show="regForm.strMobileNo.$dirty && regForm.strMobileNo.$invalid"><span ng-show="regForm.strMobileNo.$error.required">Phone is required.</span>

the following code will help for phone number validation and the respected directive is

app.directive('validatePhone', function() {
var PHONE_REGEXP = /^[789]\d{9}$/;
  return {
    link: function(scope, elm) {
      elm.on("keyup",function(){
            var isMatchRegex = PHONE_REGEXP.test(elm.val());
            if( isMatchRegex&& elm.hasClass('warning') || elm.val() == ''){
              elm.removeClass('warning');
            }else if(isMatchRegex == false && !elm.hasClass('warning')){
              elm.addClass('warning');
            }
      });
    }
  }
});

For zsh users. Add alias adb='/Users/<yourUserName>/Library/Android/sdk/platform-tools/adb' to .zshrc file.

Than run source ~/.zshrc command

For IOS, please use only mp4 source file. I have observed one issue in latest safari browser that safari browser cant able to detect source file correctly and because of this, video autoplay doesn't work.

Lets check below example -

     <video autoplay loop muted playsinline poster="video_thumbnail/thumbanil.jpg" src="video/video.mp4">
        <source src="video/video.mp4" type="video/mp4"></source>
        <source src="video/video.webm" type="video/webm"></source>
     </video>

As I have used mp4, webm in source files. Safari deosnt support webm but still in latest safari version, it would select webm and it fails video autoplay.

So to work autoplay across supported browser, I would suggest to check browser first and based on that you should generate your html.

So for safari, use below html.

     <video autoplay loop muted playsinline poster="video_thumbnail/thumbanil.jpg" src="video/video.mp4">
        <source src="video/video.mp4" type="video/mp4"></source>
     </video>

For other than safari,

     <video autoplay loop muted playsinline poster="video_thumbnail/thumbanil.jpg" src="video/video.mp4">
        <source src="video/video.webm" type="video/webm"></source>
        <source src="video/video.mp4" type="video/mp4"></source>
     </video>

Might be a pasting problem, but as far as I can see from your code, you're missing the single quotes around the HTML part you're echo-ing.

If not, could you post the code correctly and tell us what line is causing the error?

Not sure what isn't working in your case, but the following code will put a formula into cell A1 that will retrieve the value in the cell G2.

strProjectName = "Sheet1"
Cells(1, 1).Formula = "=" & strProjectName & "!" & Cells(2, 7).Address

The workbook and worksheet that strProjectName references must exist at the time that this formula is placed. Excel will immediately try to evaluate the formula. You might be able to stop that from happening by turning off automatic recalculation until the workbook does exist.

A subscription can be created and after taking the first emitted item destroyed. Pipe is a function that uses an Observable as its input and returns another Observable as output, while not modifying the first observable. Angular 8.1.0. Packages: "rxjs": "6.5.3", "rxjs-observable": "0.0.7"

  ngOnInit() {

    ...

    // If loading with previously saved value
    if (this.controlValue) {

      // Take says once you have 1, then close the subscription
      this.selectList.pipe(take(1)).subscribe(x => {
        let opt = x.find(y => y.value === this.controlValue);
        this.updateValue(opt);
      });

    }
  }

I encountered this error while using my git bash. I was able to solve this by re-installing git for windows. More details in this answer.

Just to comment on the DOMAttrModified event listener browser support:

Cross-browser support

These events are not implemented consistently across different browsers, for example:

• IE prior to version 9 didn't support the mutation events at all and does not implement some of them correctly in version 9 (for example, DOMNodeInserted)

• WebKit doesn't support DOMAttrModified (see webkit bug 8191 and the workaround)

• "mutation name events", i.e. DOMElementNameChanged and DOMAttributeNameChanged are not supported in Firefox (as of version 11), and probably in other browsers as well.

Source: https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Mutation_events

As stated by a few others, this is a linking error. The section of code where this function is being called doesn't know what this function is. It either needs to be declared in a header file an defined in its own source file, or defined or declared in the same source file, above where it's being called.

Edit: In older versions of C, C89/C90, function declarations weren't actually required. So, you could just add the definition anywhere in the file in which you're using the function, even after the call and the compiler would infer the declaration. For example,

int main()
{
  int a = func();
}

int func()
{
   return 1;
}

However, this isn't good practice today and most languages, C++ for example, won't allow it. One way to get away with defining the function in the same source file in which you're using it, is to declare it at the beginning of the file. So, the previous example would look like this instead.

int func();

int main()
{
   int a = func();
}

int func()
{
  return 1;
}

In my case, the import references in many of the classes contained an extra word. I solved it by editing all the files to have the correct imports. I started doing the edits manually. But when I saw the pattern, I automated it with a find..replace in eclipse. This resolved the error.

In my case the issue was a missing 's' in the HTTP URL. Error was: "HttpHostConnectException: Connect to someendpoint.com:80 [someendpoint.com/127.0.0.1] failed: Connection refused" End point and IP obviously changed to protect the network.

I like this one-liner, when I'm not using Rails, because then I don't have to make a second hash and hold two sets of data while I'm processing it:

my_hash = { "a" => 1, "b" => "string", "c" => true }

my_hash.keys.each { |key| my_hash[key.to_sym] = my_hash.delete(key) }

my_hash
=> {:a=>1, :b=>"string", :c=>true}

Hash#delete returns the value of the deleted key

/data/data/"your app package name " 

but you wont able to read that unless you have a rooted device

-pattern_type glob

This great option makes it easier to select the images in many cases.

Slideshow video with one image per second

ffmpeg -framerate 1 -pattern_type glob -i '*.png' \
  -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

Add some music to it, cutoff when the presumably longer audio when the images end:

ffmpeg -framerate 1 -pattern_type glob -i '*.png' -i audio.ogg \
  -c:a copy -shortest -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4

Here are two demos on YouTube:

• https://www.youtube.com/watch?v=grV64VE1U6c
• https://www.youtube.com/watch?v=_6D05gCWh_I

Be a hippie and use the Theora patent-unencumbered video format:

ffmpeg -framerate 1 -pattern_type glob -i '*.png' -i audio.ogg \
  -c:a copy -shortest -c:v libtheora -r 30 -pix_fmt yuv420p out.ogg

Your images should of course be sorted alphabetically, typically as:

0001-first-thing.jpg
0002-second-thing.jpg
0003-and-third.jpg

and so on.

I would also first ensure that all images to be used have the same aspect ratio, possibly by cropping them with imagemagick or nomacs beforehand, so that ffmpeg will not have to make hard decisions. In particular, the width has to be divisible by 2, otherwise conversion fails with: "width not divisible by 2".

Normal speed video with one image per frame at 30 FPS

ffmpeg -framerate 30 -pattern_type glob -i '*.png' \
  -c:v libx264 -pix_fmt yuv420p out.mp4

Here's what it looks like:

GIF generated with: https://askubuntu.com/questions/648603/how-to-create-an-animated-gif-from-mp4-video-via-command-line/837574#837574

Add some audio to it:

ffmpeg -framerate 30 -pattern_type glob -i '*.png' \
  -i audio.ogg -c:a copy -shortest -c:v libx264 -pix_fmt yuv420p out.mp4

Result: https://www.youtube.com/watch?v=HG7c7lldhM4

These are the test media I've used:a

wget -O opengl-rotating-triangle.zip https://github.com/cirosantilli/media/blob/master/opengl-rotating-triangle.zip?raw=true
unzip opengl-rotating-triangle.zip
cd opengl-rotating-triangle
wget -O audio.ogg https://upload.wikimedia.org/wikipedia/commons/7/74/Alnitaque_%26_Moon_Shot_-_EURO_%28Extended_Mix%29.ogg

Images generated with: How to use GLUT/OpenGL to render to a file?

It is cool to observe how much the video compresses the image sequence way better than ZIP as it is able to compress across frames with specialized algorithms:

• opengl-rotating-triangle.mp4: 340K
• opengl-rotating-triangle.zip: 7.3M

Convert one music file to a video with a fixed image for YouTube upload

Answered at: https://superuser.com/questions/700419/how-to-convert-mp3-to-youtube-allowed-video-format/1472572#1472572

Full realistic slideshow case study setup step by step

There's a bit more to creating slideshows than running a single ffmpeg command, so here goes a more interesting detailed example inspired by this timeline.

Get the input media:

mkdir -p orig
cd orig
wget -O 1.png https://upload.wikimedia.org/wikipedia/commons/2/22/Australopithecus_afarensis.png
wget -O 2.jpg https://upload.wikimedia.org/wikipedia/commons/6/61/Homo_habilis-2.JPG
wget -O 3.jpg https://upload.wikimedia.org/wikipedia/commons/c/cb/Homo_erectus_new.JPG
wget -O 4.png https://upload.wikimedia.org/wikipedia/commons/1/1f/Homo_heidelbergensis_-_forensic_facial_reconstruction-crop.png
wget -O 5.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Sabaa_Nissan_Militiaman.jpg/450px-Sabaa_Nissan_Militiaman.jpg
wget -O audio.ogg https://upload.wikimedia.org/wikipedia/commons/7/74/Alnitaque_%26_Moon_Shot_-_EURO_%28Extended_Mix%29.ogg
cd ..

# Convert all to PNG for consistency.
# https://unix.stackexchange.com/questions/29869/converting-multiple-image-files-from-jpeg-to-pdf-format
# Hardlink the ones that are already PNG.
mkdir -p png
mogrify -format png -path png orig/*.jpg
ln -P orig/*.png png

Now we have a quick look at all image sizes to decide on the final aspect ratio:

identify png/*

which outputs:

png/1.png PNG 557x495 557x495+0+0 8-bit sRGB 653KB 0.000u 0:00.000
png/2.png PNG 664x800 664x800+0+0 8-bit sRGB 853KB 0.000u 0:00.000
png/3.png PNG 544x680 544x680+0+0 8-bit sRGB 442KB 0.000u 0:00.000
png/4.png PNG 207x238 207x238+0+0 8-bit sRGB 76.8KB 0.000u 0:00.000
png/5.png PNG 450x600 450x600+0+0 8-bit sRGB 627KB 0.000u 0:00.000

so the classic 480p (640x480 == 4/3) aspect ratio seems appropriate.

Do one conversion with minimal resizing to make widths even (TODO automate for any width, here I just manually looked at identify output and reduced width and height by one):

mkdir -p raw
convert png/1.png -resize 556x494 raw/1.png
ln -P png/2.png png/3.png png/4.png png/5.png raw
ffmpeg -framerate 1 -pattern_type glob -i 'raw/*.png' -i orig/audio.ogg -c:v libx264 -c:a copy -shortest -r 30 -pix_fmt yuv420p raw.mp4

This produces terrible output, because as seen from:

ffprobe raw.mp4

ffmpeg just takes the size of the first image, 556x494, and then converts all others to that exact size, breaking their aspect ratio.

Now let's convert the images to the target 480p aspect ratio automatically by cropping as per ImageMagick: how to minimally crop an image to a certain aspect ratio?

mkdir -p auto
mogrify -path auto -geometry 640x480^ -gravity center -crop 640x480+0+0 png/*.png
ffmpeg -framerate 1 -pattern_type glob -i 'auto/*.png' -i orig/audio.ogg -c:v libx264 -c:a copy -shortest -r 30 -pix_fmt yuv420p auto.mp4

So now, the aspect ratio is good, but inevitably some cropping had to be done, which kind of cut up interesting parts of the images.

The other option is to pad with black background to have the same aspect ratio as shown at: Resize to fit in a box and set background to black on "empty" part

mkdir -p black
ffmpeg -framerate 1 -pattern_type glob -i 'black/*.png' -i orig/audio.ogg -c:v libx264 -c:a copy -shortest -r 30 -pix_fmt yuv420p black.mp4

Generally speaking though, you will ideally be able to select images with the same or similar aspect ratios to avoid those problems in the first place.

About the CLI options

Note however that despite the name, -glob this is not as general as shell Glob patters, e.g.: -i '*' fails: https://trac.ffmpeg.org/ticket/3620 (apparently because filetype is deduced from extension).

-r 30 makes the -framerate 1 video 30 FPS to overcome bugs in players like VLC for low framerates: VLC freezes for low 1 FPS video created from images with ffmpeg Therefore it repeats each frame 30 times to keep the desired 1 image per second effect.

Next steps

You will also want to:

• cut up the part of the audio that you want before joining it: Cutting the videos based on start and end time using ffmpeg

  ffmpeg -i in.mp3 -ss 03:10 -to 03:30 -c copy out.mp3
  

TODO: learn to cut and concatenate multiple audio files into the video without intermediate files, I'm pretty sure it's possible:

• ffmpeg cut and concat single command line
• https://video.stackexchange.com/questions/21315/concatenating-split-media-files-using-concat-protocol
• https://superuser.com/questions/587511/concatenate-multiple-wav-files-using-single-command-without-extra-file

Tested on

ffmpeg 3.4.4, vlc 3.0.3, Ubuntu 18.04.

Bibliography

• http://trac.ffmpeg.org/wiki/Slideshow official wiki

As of python 2.7, optparse is deprecated, and will hopefully go away in the future.

argparse is better for all the reasons listed on its original page (https://code.google.com/archive/p/argparse/):

• handling positional arguments
• supporting sub-commands
• allowing alternative option prefixes like + and /
• handling zero-or-more and one-or-more style arguments
• producing more informative usage messages
• providing a much simpler interface for custom types and actions

More information is also in PEP 389, which is the vehicle by which argparse made it into the standard library.

If it's not vb you can use 
 (ascii codes for cr,lf)

They are exactly the same. When you use it be consistent. Use one of them in your database

Read about Window.location and the Location interface:

var url = [location.protocol, '//', location.host, location.pathname].join('');

Use Fiddler and grab the view state in the response and paste it into the bottom left text box then decode.

Currently you are sending the data as typical POST values, which look like this:

first_name=somename&last_name=somesurname

If you want to send data as json you need to create an object with data and stringify it.

data: JSON.stringify(someobject)

The above answers are incorrect in that most over-ride the 'is this connection HTTPS' test to allow serving the pages over http irrespective of connection security.

The secure answer using an error-page on an NGINX specific http 4xx error code to redirect the client to retry the same request to https. (as outlined here https://serverfault.com/questions/338700/redirect-http-mydomain-com12345-to-https-mydomain-com12345-in-nginx )

The OP should use:

server {
  listen        12345;
  server_name   php.myadmin.com;

  root         /var/www/php;

  ssl           on;

  # If they come here using HTTP, bounce them to the correct scheme
  error_page 497 https://$server_name:$server_port$request_uri;

  [....]
}

React uses event delegation with a single event listener on document for events that bubble, like 'click' in this example, which means stopping propagation is not possible; the real event has already propagated by the time you interact with it in React. stopPropagation on React's synthetic event is possible because React handles propagation of synthetic events internally.

stopPropagation: function(e){
    e.stopPropagation();
    e.nativeEvent.stopImmediatePropagation();
}

As already mentioned by several people, eq is the right operator here.

If you use warnings; in your script, you'll get warnings about this (and many other useful things); I'd recommend use strict; as well.

According to the jQuery documentation, shorthand CSS properties are not supported.

Depending on what you mean by "total padding", you may be able to do something like this:

var $img = $('img');
var paddT = $img.css('padding-top') + ' ' + $img.css('padding-right') + ' ' + $img.css('padding-bottom') + ' ' + $img.css('padding-left');

Good question with a simple answer: you can't!

Javascript is a client-side programming language, therefore it works on the client's machine, so you can't actually hide anything from the client.
Obfuscating your code is a good solution, but it's not enough, because, although it is hard, someone could decipher your code and "steal" your script.
There are a few ways of making your code hard to be stolen, but as i said nothing is bullet-proof.

Off the top of my head, one idea is to restrict access to your external js files from outside the page you embed your code in. In that case, if you have

<script type="text/javascript" src="myJs.js"></script>

and someone tries to access the myJs.js file in browser, he shouldn't be granted any access to the script source.
For example, if your page is written in php, you can include the script via the include function and let the script decide if it's safe" to return it's source.
In this example, you'll need the external "js" (written in php) file myJs.php :

<?php
    $URL = $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI'];
    if ($URL != "my-domain.com/my-page.php")
    die("/\*sry, no acces rights\*/");
?>
// your obfuscated script goes here

that would be included in your main page my-page.php :

<script type="text/javascript">
    <?php include "myJs.php"; ?>;
</script> 

This way, only the browser could see the js file contents.

Another interesting idea is that at the end of your script, you delete the contents of your dom script element, so that after the browser evaluates your code, the code disappears :

<script id="erasable" type="text/javascript">
    //your code goes here
    document.getElementById('erasable').innerHTML = "";
</script>

These are all just simple hacks that cannot, and I can't stress this enough : cannot, fully protect your js code, but they can sure piss off someone who is trying to "steal" your code.

Update:

I recently came across a very interesting article written by Patrick Weid on how to hide your js code, and he reveals a different approach: you can encode your source code into an image! Sure, that's not bullet proof either, but it's another fence that you could build around your code.
The idea behind this approach is that most browsers can use the canvas element to do pixel manipulation on images. And since the canvas pixel is represented by 4 values (rgba), each pixel can have a value in the range of 0-255. That means that you can store a character (actual it's ascii code) in every pixel. The rest of the encoding/decoding is trivial.
Thanks, Patrick!

Objective-C

Based on Tai Le answer up there which implements the feature inside an IB Designable, here's the Objective-C version.

Put this in YourLabel.h

@interface YourLabel : UILabel

@property IBInspectable CGFloat topInset;
@property IBInspectable CGFloat bottomInset;
@property IBInspectable CGFloat leftInset;
@property IBInspectable CGFloat rightInset;

@end

And this would go in YourLabel.m

IB_DESIGNABLE

@implementation YourLabel

#pragma mark - Super

- (instancetype)initWithCoder:(NSCoder *)aDecoder {
    self = [super initWithCoder:aDecoder];
    if (self) {
        self.topInset = 0;
        self.bottomInset = 0;
        self.leftInset = 0;
        self.rightInset = 0;
    }
    return self;
}

- (void)drawTextInRect:(CGRect)rect {
    UIEdgeInsets insets = UIEdgeInsetsMake(self.topInset, self.leftInset, self.bottomInset, self.rightInset);
    [super drawTextInRect:UIEdgeInsetsInsetRect(rect, insets)];
}

- (CGSize)intrinsicContentSize {

    CGSize size = [super intrinsicContentSize];
    return CGSizeMake(size.width + self.leftInset + self.rightInset,
                      size.height + self.topInset + self.bottomInset);
}

@end

You can then modify YourLabel insets directly in Interface Builder after specifying the class inside the XIB or storyboard, the default value of the insets being zero.

The easiest way to match both

^\([0-9]{3}\)[0-9]{3}-[0-9]{4}$

and

^[0-9]{3}-[0-9]{3}-[0-9]{4}$

is to use alternation ((...|...)): specify them as two mostly-separate options:

^(\([0-9]{3}\)|[0-9]{3}-)[0-9]{3}-[0-9]{4}$

By the way, when Americans put the area code in parentheses, we actually put a space after that; for example, I'd write (123) 123-1234, not (123)123-1234. So you might want to write:

^(\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}$

(Though it's probably best to explicitly demonstrate the format that you expect phone numbers to be in.)

I know basic use of abstract classes is to create templates for future classes. But are there any more uses of them?

Not only can you define a template for children, but Abstract Classes offer the added benefit of letting you define functionality that your child classes can utilize later.

You could not provide a default method implementation in an Interface prior to Java 8.

When should you prefer them over interfaces and when not?

Abstract Classes are a good fit if you want to provide implementation details to your children but don't want to allow an instance of your class to be directly instantiated (which allows you to partially define a class).

If you want to simply define a contract for Objects to follow, then use an Interface.

Also when are abstract methods useful?

Abstract methods are useful in the same way that defining methods in an Interface is useful. It's a way for the designer of the Abstract class to say "any child of mine MUST implement this method".