From this document, this DTU percent is determined by this query:

SELECT end_time,   
  (SELECT Max(v)    
   FROM (VALUES (avg_cpu_percent), (avg_data_io_percent), 
(avg_log_write_percent)) AS    
   value(v)) AS [avg_DTU_percent]   
FROM sys.dm_db_resource_stats;  

looks like the max of avg_cpu_percent, avg_data_io_percent and avg_log_write_percent

Reference:

https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-db-resource-stats-azure-sql-database

I was a bit puzzled that norm.fit apparently only worked with the expanded list of sampled values. I tried giving it two lists of numbers, or lists of tuples, but it only appeared to flatten everything and threat the input as individual samples. Since I already have a histogram based on millions of samples, I didn't want to expand this if I didn't have to. Thankfully, the normal distribution is trivial to calculate, so...

# histogram is [(val,count)]
from math import sqrt

def normfit(hist):
    n,s,ss = univar(hist)
    mu = s/n
    var = ss/n-mu*mu
    return (mu, sqrt(var))

def univar(hist):
    n = 0
    s = 0
    ss = 0
    for v,c in hist:
        n += c
        s += c*v
        ss += c*v*v
    return n, s, ss

I'm sure this must be provided by the libraries, but as I couldn't find it anywhere, I'm posting this here instead. Feel free to point to the correct way to do it and downvote me :-)

Big guns - Debugging Tools for Windows

This is an amazing collection of tools. You can analyze both managed and unmanaged heaps with it and you can do it offline. This was very handy for debugging one of our ASP.NET applications that kept recycling due to memory overuse. I only had to create a full memory dump of living process running on production server, all analysis was done offline in WinDbg. (It turned out some developer was overusing in-memory Session storage.)

"If broken it is..." blog has very useful articles on the subject.

PsPing from Sysinternals is also very good.

Also remember that it must be:

#include "stdafx.h"
#include <iostream>

and not the other way around

#include <iostream>
#include "stdafx.h"

You have to first clear the table and then add new data using row.add() function. At last step adjust also column size so that table renders correctly.

$('#upload-new-data').on('click', function () {
   datatable.clear().draw();
   datatable.rows.add(NewlyCreatedData); // Add new data
   datatable.columns.adjust().draw(); // Redraw the DataTable
});

Also if you want to find a mapping between old and new datatable API functions bookmark this

Alternatively you can do it in one line (tested in win10)

sqlite3 -help
sqlite3 -header -csv db.sqlite 'select * from tbl1;' > test.csv

Bonus: Using powershell with cmdlet and pipe (|).

get-content query.sql | sqlite3 -header -csv db.sqlite > test.csv

where query.sql is a file containing your SQL query

I've been using:

new SolidColorBrush((Color)ColorConverter.ConvertFromString("#ffaacc"));

I don't know what the .tex extension on your file means. If we are saying that it is any file with any extension you have several methods of reading it.

I have to assume you are using windows because you have mentioned notepad++.

1. Use notepad++. Right click on the file and choose "edit with notepad++"

2. Use notepad Change the filename extension to .txt and double click the file.

3. Use command prompt. Open the folder that your file is in. Hold down shift and right click. (not on the file, but in the folder that the file is in.) Choose "open command window here" from the command prompt type: "type filename.tex"

If these don't work, I would need more detail as to how they are not working. Errors that you may be getting or what you may expect to be in the file might help.

As jeremyjjbrow said, :active pseudo won't persist. But there's a hack for doing it on pure css. You can wrap it on a <a> tag, and apply the :active on it, like this:

<a class="test">
    <img class="crossRotate" src="images/cross.png" alt="Cross Menu button" />
 </a>

And the css:

.test:active .crossRotate {
    transform: rotate(45deg);
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    }

Try it out... It works (at least on Chrome)!

Another option would be to set the webroot path to the angular cli dist folder. In your Program.cs when configuring the WebHostBuilder just say

.UseWebRoot(Directory.GetCurrentDirectory() + "\\Frontend\\dist")

or whatever the path to your dist dir is.

In my case the spellings of XIB was incorrect. Please make sure the spellings are correct. Bundle.main.loadNibName("XIB_Name" , owner : self , options :nil)

Change Minute to be 0. That's it :)

Note: you can check your "crons" in http://cronchecker.net/

Example

java.io.File doesn't represent an open file, it represents a path in the filesystem. Therefore having close method on it doesn't make sense.

Actually, this class was misnamed by the library authors, it should be called something like Path.

Here is another nice clean option that does not require changing your pattern.

        var text = "example-123-example";
        var pattern = @"-(\d+)-";

        var replaced = Regex.Replace(text, pattern, (_match) =>
        {
            Group group = _match.Groups[1];
            string replace = "AA";
            return String.Format("{0}{1}{2}", _match.Value.Substring(0, group.Index - _match.Index), replace, _match.Value.Substring(group.Index - _match.Index + group.Length));
        });

Using moment.js example:

var from = '11-04-2017' // OR $("#datepicker").val();
var milliseconds = moment(from, "DD-MM-YYYY").format('x');
var f = new Date(milliseconds)

It's the ternary form of the if-else operator. The above statement basically reads like this:

if ($add_review) then {
    return FALSE; //$add_review evaluated as True
} else {
    return $arg //$add_review evaluated as False
}

See here for more details on ternary op in PHP: http://www.addedbytes.com/php/ternary-conditionals/

The original question was for MySQL and SQL in general. The example below is for the new versions of MySQL. Unfortunately, a generic query that would work on any SQL server is not possible. Some servers do no support CTE, others do not have substring_index, yet others have built-in functions for splitting a string into multiple rows.

--- the answer follows ---

Recursive queries are convenient when the server does not provide built-in functionality. They can also be the bottleneck.

The following query was written and tested on MySQL version 8.0.16. It will not work on version 5.7-. The old versions do not support Common Table Expression (CTE) and thus recursive queries.

with recursive
  input as (
        select 1 as id, 'a,b,c' as names
      union
        select 2, 'b'
    ),
  recurs as (
        select id, 1 as pos, names as remain, substring_index( names, ',', 1 ) as name
          from input
      union all
        select id, pos + 1, substring( remain, char_length( name ) + 2 ),
            substring_index( substring( remain, char_length( name ) + 2 ), ',', 1 )
          from recurs
          where char_length( remain ) > char_length( name )
    )
select id, name
  from recurs
  order by id, pos;

Set Query as below at first line

SET SERVEROUTPUT ON 

This problem can be easily solved by installing the following Individual components:

You can use formatDate() to format the date in services or component ts. syntax:-

    formatDate(value: string | number | Date, format: string, locale: string, timezone?: string): string

import the formatDate() from common module like this,

    import { formatDate } from '@angular/common';

and just use it in the class like this ,

    formatDate(new Date(), 'MMMM dd yyyy', 'en');

You can also use the predefined format options provided by angular like this ,

    formatDate(new Date(), 'shortDate', 'en');

You can see all other predefined format options here ,

https://angular.io/api/common/DatePipe

JSONP stands for JSON with Padding.

Here is the site, with great examples, with the explanation from the simplest use of this technique to the most advanced in plane JavaScript:

w3schools.com / JSONP

One of my more favorite techniques described above is Dynamic JSON Result, which allow to send JSON to the PHP file in URL parameter, and let the PHP file also return a JSON object based on the information it gets.

Tools like jQuery also have facilities to use JSONP:

jQuery.ajax({
  url: "https://data.acgov.org/resource/k9se-aps6.json?city=Berkeley",
  jsonp: "callbackName",
  dataType: "jsonp"
}).done(
  response => console.log(response)
);

I am using this method to avoid the popup blocker in my React code. it will work in all other javascript codes also.

When you are making an async call on click event, just open a blank window first and then write the URL in that later when an async call will complete.

const popupWindow = window.open("", "_blank");
popupWindow.document.write("<div>Loading, Plesae wait...</div>")

on async call's success, write the following

popupWindow.document.write(resonse.url)

JSL 1.7

The Oracle documentation mentions:

• unchecked: Unchecked warnings are identified by the string "unchecked".
• deprecation: A Java compiler must produce a deprecation warning when a type, method, field, or constructor whose declaration is annotated with the annotation @Deprecated is used (i.e. overridden, invoked, or referenced by name), unless: [...] The use is within an entity that is annotated to suppress the warning with the annotation @SuppressWarnings("deprecation"); or

It then explains that implementations can add and document their own:

Compiler vendors should document the warning names they support in conjunction with this annotation type. Vendors are encouraged to cooperate to ensure that the same names work across multiple compilers.

In your database what is the type of "IDNO"? You may need to escape the sql here:

$result = mysql_query("SELECT * FROM student WHERE IDNO=".$_GET['id']);

Many folks, including myself, need an xor function that behaves like an n-input xor circuit, where n is variable. (See https://en.wikipedia.org/wiki/XOR_gate). The following simple function implements this.

def xor(*args):
   """
   This function accepts an arbitrary number of input arguments, returning True
   if and only if bool() evaluates to True for an odd number of the input arguments.
   """

   return bool(sum(map(bool,args)) % 2)

Sample I/O follows:

In [1]: xor(False, True)
Out[1]: True

In [2]: xor(True, True)
Out[2]: False

In [3]: xor(True, True, True)
Out[3]: True

I really like how npm-upgrade works. It is a simple command line utility that goes through all of your dependencies and lets you see the current version compared to the latest version and update if you want.

Here is a screenshot of what happens after running npm-upgrade in the root of your project (next to the package.json file):

For each dependency you can choose to upgrade, ignore, view the changelog, or finish the process. It has worked great for me so far.

EDIT: To be clear this is a third party package that needs to be installed before the command will work. It does not come with npm itself:

npm install -g npm-upgrade

Then from the root of a project that has a package.json file:

npm-upgrade

public static string textDataSource = "Data Source=localhost;Initial 
Catalog=TEST_C;User ID=sa;Password=P@ssw0rd";
public static bool ExtSql(string sql) {
    SqlConnection cnn;
    SqlCommand cmd;
    cnn = new SqlConnection(textDataSource);
    cmd = new SqlCommand(sql, cnn);
    try {
        cnn.Open();
        cmd.ExecuteNonQuery();
        cnn.Close();
        return true;
    }
    catch (Exception) {
        return false;
    }
    finally {
        cmd.Dispose();
        cnn = null;
        cmd = null; 
    }
}

When I am trying to share behavior between 2 closely related classes, I create an abstract class that holds the common behavior and serves as a parent to both classes.

When I am trying to define a Type, a list of methods that a user of my object can reliably call upon, then I create an interface.

For example, I would never create an abstract class with 1 concrete subclass because abstract classes are about sharing behavior. But I might very well create an interface with only one implementation. The user of my code won't know that there is only one implementation. Indeed, in a future release there may be several implementations, all of which are subclasses of some new abstract class that didn't even exist when I created the interface.

That might have seemed a bit too bookish too (though I have never seen it put that way anywhere that I recall). If the interviewer (or the OP) really wanted more of my personal experience on that, I would have been ready with anecdotes of an interface has evolved out of necessity and visa versa.

One more thing. Java 8 now allows you to put default code into an interface, further blurring the line between interfaces and abstract classes. But from what I have seen, that feature is overused even by the makers of the Java core libraries. That feature was added, and rightly so, to make it possible to extend an interface without creating binary incompatibility. But if you are making a brand new Type by defining an interface, then the interface should be JUST an interface. If you want to also provide common code, then by all means make a helper class (abstract or concrete). Don't be cluttering your interface from the start with functionality that you may want to change.

These lines are your problem (or at least one of your problems, if there are more):

private static string s_bstCommonAppData = Path.Combine(s_commonAppData, "XXXX");
private static string s_bstUserDataDir = Path.Combine(s_bstCommonAppData, "UserData");
private static string s_commonAppData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);

You reference some static members in the initializers for other static members. This is a bad idea, as the compiler doesn't know in which order to initialize them. The result is that during the initialization of s_bstCommonAppData, the dependent field s_commonAppData has not yet been initialized, so you are calling Path.Combine(null, "XXXX") and this method does not accept null arguments.

You can fix this by making sure that fields used in the initialization of other fields are declared first:

private static string s_commonAppData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
private static string s_bstCommonAppData = Path.Combine(s_commonAppData, "XXXX");
private static string s_bstUserDataDir = Path.Combine(s_bstCommonAppData, "UserData");

Or use a static constructor to explicitly order the assignments:

private static string s_bstCommonAppData;
private static string s_bstUserDataDir;
private static string s_commonAppData;

static Logger()
{
    s_commonAppData = Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData);
    s_bstCommonAppData = Path.Combine(s_commonAppData, "XXXX");
    s_bstUserDataDir = Path.Combine(s_bstCommonAppData, "UserData");
}

I like this option

for x in $(ls ./*.php); do echo $x; cat $x | grep -i 'menuItem'; done

Output looks like this:

./debug-things.php
./Facebook.Pixel.Code.php
./footer.trusted.seller.items.php
./GoogleAnalytics.php
./JivositeCode.php
./Live-Messenger.php
./mPopex.php
./NOTIFICATIONS-box.php
./reviewPopUp_Frame.php
            $('#top-nav-scroller-pos-<?=$active**MenuItem**;?>').addClass('active');
            gotTo**MenuItem**();
./Reviews-Frames-PopUps.php
./social.media.login.btns.php
./social-side-bar.php
./staticWalletsAlerst.php
./tmp-fix.php
./top-nav-scroller.php
$active**MenuItem** = '0';
        $active**MenuItem** = '1';
        $active**MenuItem** = '2';
        $active**MenuItem** = '3';
./Waiting-Overlay.php
./Yandex.Metrika.php

The answer was already given, but I just want to give my piece of cake. What you want to achieve is called method borrowing in the context of JS, that when we take a method from an object and call it in the context of another object. It is quite common to take array methods and apply them to arguments. Let me give you an example.

So we have "super" hashing function which takes two numbers as an argument and returns "super safe" hashed string:

function hash() {
  return arguments[0]+','+arguments[1];
}

hash(1,2); // "1,2" whoaa

So far so good, but we have little problem with the above approach, it is constrained, only works with two numbers, that is not dynamic, let's make it work with any number and plus you do not have to pass an array (you can if you still insist). Ok, Enough talk, Let's fight!

The natural solution would be to use arr.join method:

function hash() {
  return arguments.join();
}

hash(1,2,4,..); //  Error: arguments.join is not a function

Oh, man. Unfortunately, that won’t work. Because we are calling hash(arguments) and arguments object is both iterable and array-like, but not a real array. How about the below approach?

function hash() {
  return [].join.call(arguments);
}

hash(1,2,3,4); // "1,2,3,4" whoaa

The trick is called method borrowing.

We borrow a join method from a regular array [].join. And use [].join.call to run it in the context of arguments.

Why does it work?

That’s because the internal algorithm of the native method arr.join(glue) is very simple.

Taken from the specification almost “as-is”:

Let glue be the first argument or, if no arguments, then a comma ",".
Let result be an empty string.
Append this[0] to result.
Append glue and this[1].
Append glue and this[2].
…Do so until this.length items are glued.
Return result.

So, technically it takes this and joins this[0], this[1] …etc together. It’s intentionally written in a way that allows any array-like this (not a coincidence, many methods follow this practice). That’s why it also works with this=arguments.

You need nunique:

df = df.groupby('domain')['ID'].nunique()

print (df)
domain
'facebook.com'    1
'google.com'      1
'twitter.com'     2
'vk.com'          3
Name: ID, dtype: int64

If you need to strip ' characters:

df = df.ID.groupby([df.domain.str.strip("'")]).nunique()
print (df)
domain
facebook.com    1
google.com      1
twitter.com     2
vk.com          3
Name: ID, dtype: int64

Or as Jon Clements commented:

df.groupby(df.domain.str.strip("'"))['ID'].nunique()

You can retain the column name like this:

df = df.groupby(by='domain', as_index=False).agg({'ID': pd.Series.nunique})
print(df)
    domain  ID
0       fb   1
1      ggl   1
2  twitter   2
3       vk   3

The difference is that nunique() returns a Series and agg() returns a DataFrame.

 root/
   assets/
      lib/-------------------------libraries--------------------
          bootstrap/--------------Libraries can have js/css/images------------
              css/
              js/
              images/  
          jquery/
              js/
          font-awesome/
              css/
              images/
     common/--------------------common section will have application level resources             
          css/
          js/
          img/

 index.html

This is how I organized my application's static resources.

You can do something like this

import React from 'react';

class Header extends React.Component {

constructor() {
    super();
}

checkClick(e, notyId) {
    alert(notyId);
}

render() {
    return (
        <PopupOver func ={this.checkClick } />
    )
}
};

class PopupOver extends React.Component {

constructor(props) {
    super(props);
    this.props.func(this, 1234);
}

render() {
    return (
        <div className="displayinline col-md-12 ">
            Hello
        </div>
    );
}
}

export default Header;

Using statics

var MyComponent = React.createClass({
 statics: {
 customMethod: function(foo) {
  return foo === 'bar';
  }
 },
   render: function() {
 }
});

MyComponent.customMethod('bar');  // true

You can use mb_chars. This respects umlaute:

class String

  # Only capitalize first letter of a string
  def capitalize_first
    self[0] = self[0].mb_chars.upcase
    self
  end

end

Example:

"ümlaute".capitalize_first
#=> "Ümlaute"

My view is to always use ++ and -- by themselves on a single line, as in:

i++;
array[i] = foo;

instead of

array[++i] = foo;

Anything beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception, as the use of the increment operator is idiomatic and thus always clear.

Split nextLine() by this delimiter: (?=([^\"]*\"[^\"]*\")*[^\"]*$)").

data="UTF-8 DATA"
udata=data.decode("utf-8")
asciidata=udata.encode("ascii","ignore")

There is also a npm module, that add last to Array.prototype

npm install array-prototype-last --save

usage

require('array-prototype-last');

[1, 2, 3].last; //=> 3 

[].last; //=> undefined 

Execute the GetEventIdsByEventDate() method and save the results in a variable, and then you can use the .Contains() method

  //file name must be of the form filename.yourfileExtension
       std::vector<std::string> source;
bool getFileContent(std::string & fileName)
{
    if (fileName.substr(fileName.find_last_of(".") + 1) =="yourfileExtension")
    {

        // Open the File
        std::ifstream in(fileName.c_str());

        // Check if object is valid
        if (!in)
        {
            std::cerr << "Cannot open the File : " << fileName << std::endl;
            return false;
        }
        std::string str;
        // Read the next line from File untill it reaches the end.
        while (std::getline(in, str))
        {
            // Line contains string of length > 0 then save it in vector
            if (str.size() > 0)
                source.push_back(str);
        }
        /*for (size_t i = 0; i < source.size(); i++)
    {
        lexer(source[i], i);
        cout << source[i] << endl;
    }
    */
        //Close The File
        in.close();
        return true;
    }
    else
    {
        std::cerr << ":VIP doe\'s not support this file type" << std::endl;
        std::cerr << "supported extensions is filename.yourfileExtension" << endl;
    }
}

MongoDB shell version v4.2.6
Node v14.2.0

Assuming you have a Tour Model: tourModel.js

const mongoose = require('mongoose');

const tourSchema = new mongoose.Schema({
  name: {
    type: String,
    required: [true, 'A tour must have a name'],
    unique: true,
    trim: true,
  },
  createdAt: {
    type: Date,
    default: Date.now(),
  },
});
const Tour = mongoose.model('Tour', tourSchema);

module.exports = Tour;

Now you want to delete all tours at once from your MongoDB, I also providing connection code to connect with the remote cluster. I used deleteMany(), if you do not pass any args to deleteMany(), then it will delete all the documents in Tour collection.

const mongoose = require('mongoose');
const Tour = require('./../../models/tourModel');
const conStr = 'mongodb+srv://lord:<PASSWORD>@cluster0-eeev8.mongodb.net/tour-guide?retryWrites=true&w=majority';
const DB = conStr.replace('<PASSWORD>','ADUSsaZEKESKZX');
mongoose.connect(DB, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useFindAndModify: false,
    useUnifiedTopology: true,
  })
  .then((con) => {
    console.log(`DB connection successful ${con.path}`);
  });

const deleteAllData = async () => {
  try {
    await Tour.deleteMany();
    console.log('All Data successfully deleted');
  } catch (err) {
    console.log(err);
  }
};

Yes, ./ means the current working directory. You can just reference the file directly by name, without it.

You could use prop as well. Check the following code below.

$(document).ready(function(){

   $('.staff_on_site').click(function(){

     var rBtnVal = $(this).val();

     if(rBtnVal == "yes"){
         $("#no_of_staff").prop("readonly", false); 
     }
     else{ 
         $("#no_of_staff").prop("readonly", true); 
     }
   });
});

Just for fun, another approach would be to just leave the paging and horizontal scrolling set, add a method that changes the order of the array items to convert from 'top to bottom, left to right' to visually 'left to right, top to bottom' and fill the in-between cells with empty hidden cells to make the spacing right. In case of 7 items in a grid of 9, this would go like this:

[1][4][7]
[2][5][ ]
[3][6][ ]

should become

[1][2][3]
[4][5][6]
[7][ ][ ]

so 1=1, 2=4, 3=7 etc. and 6=empty. You can reorder them by calculating the total number of rows and columns, then calculate the row and column number for each cell, change the row for the column and vice versa and then you have the new indexes. When the cell doesn't have a value corresponding to the image you can return an empty cell and set cell.hidden = YES; to it.

It works quite well in a soundboard app I built, so if anyone would like working code I'll add it. Only little code is required to make this trick work, it sounds harder than it is!

Update

I doubt this is the best solution, but by request here's working code:

- (void)viewDidLoad {
    // Fill an `NSArray` with items in normal order
    items = [NSMutableArray arrayWithObjects:
             [NSDictionary dictionaryWithObjectsAndKeys:@"Some label 1", @"label", @"Some value 1", @"value", nil],
             [NSDictionary dictionaryWithObjectsAndKeys:@"Some label 2", @"label", @"Some value 2", @"value", nil],
             [NSDictionary dictionaryWithObjectsAndKeys:@"Some label 3", @"label", @"Some value 3", @"value", nil],
             [NSDictionary dictionaryWithObjectsAndKeys:@"Some label 4", @"label", @"Some value 4", @"value", nil],
             [NSDictionary dictionaryWithObjectsAndKeys:@"Some label 5", @"label", @"Some value 5", @"value", nil],
              nil
              ];

    // Calculate number of rows and columns based on width and height of the `UICollectionView` and individual cells (you might have to add margins to the equation based on your setup!)
    CGFloat w = myCollectionView.frame.size.width;
    CGFloat h = myCollectionView.frame.size.height;
    rows = floor(h / cellHeight);
    columns = floor(w / cellWidth);
}

// Calculate number of sections
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
    return ceil((float)items.count / (float)(rows * columns));
}

// Every section has to have every cell filled, as we need to add empty cells as well to correct the spacing
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return rows*columns;
}

// And now the most important one
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    UICollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier@"myIdentifier" forIndexPath:indexPath];

    // Convert rows and columns
    int row = indexPath.row % rows;
    int col = floor(indexPath.row / rows);
    // Calculate the new index in the `NSArray`
    int newIndex = ((int)indexPath.section * rows * columns) + col + row * columns;

    // If the newIndex is within the range of the items array we show the cell, if not we hide it
    if(newIndex < items.count) {
        NSDictionary *item = [items objectAtIndex:newIndex];
        cell.label.text = [item objectForKey:@"label"];
        cell.hidden = NO;
    } else {
        cell.hidden = YES;
    }

    return cell;
}

If you'd like to use the didSelectItemAtIndexPath method you have to use the same conversion that is used in cellForItemAtIndexPath to get the corresponding item. If you have cell margins you need to add them to the rows and columns calculation, as those have to be correct in order for this to work.

I could get this error working with UnsafeMutablePointer

let ptr = rawptr.assumingMemoryBound(to: A.self) //<-- wrong A.self Change it to B.Self
ptr.pointee = B()

Drag the variable from Variables pane to Watch pane and voila!

Why to invent the wheel?

There is a very popular NPM package, that let you do things like that easy.

var recursive = require("recursive-readdir");

recursive("some/path", function (err, files) {
  // `files` is an array of file paths
  console.log(files);
});

Lear more:

• https://www.npmjs.com/package/recursive-readdir

Simplest solution and workaround:

<input name="toRent" type="radio" (click)="setToRentControl(false)">
<input name="toRent" type="radio" (click)="setToRentControl(true)">

setToRentControl(value){
    this.vm.toRent.updateValue(value);
    alert(value); //true/false
}

If you want to pass custom Controller to a form_for while rendering a partial form you can use this:

<%= render 'form', :locals => {:controller => 'my_controller', :action => 'my_action'}%>

and then in the form partial use this local variable like this:

<%= form_for(:post, :url => url_for(:controller => locals[:controller], :action => locals[:action]), html: {class: ""} ) do |f| -%>

Let's assume you have such history

---o---o---o---M---W---x-------x-------*
              /                      
      ---A---B

Where A, B failed commits and W - is revert of M

So before I start fixing found problems I do cherry-pick of W commit to my branch

git cherry-pick -x W

Then I revert W commit on my branch

git revert W 

After I can continue fixing.

The final history could look like:

---o---o---o---M---W---x-------x-------*
              /                       /     
      ---A---B---W---W`----------C---D

When I send a PR it will clearly shows that PR is undo revert and adds some new commits.

Based on your requirement that you want to put a border around an arbitrary block of MxN cells there really is no easier way of doing it without using Javascript. If your cells are fixed with you can use floats but this is problematic for other reasons. what you're doing may be tedious but it's fine.

Ok, if you're interested in a Javascript solution, using jQuery (my preferred approach), you end up with this fairly scary piece of code:

<html>
<head>

<style type="text/css">
td.top { border-top: thin solid black; }
td.bottom { border-bottom: thin solid black; }
td.left { border-left: thin solid black; }
td.right { border-right: thin solid black; }
</style>
<script type="text/javascript" src="jquery-1.3.1.js"></script>
<script type="text/javascript">
$(function() {
  box(2, 1, 2, 2);
});

function box(row, col, height, width) {
  if (typeof height == 'undefined') {
    height = 1;
  }
  if (typeof width == 'undefined') {
    width = 1;
  }
  $("table").each(function() {
    $("tr:nth-child(" + row + ")", this).children().slice(col - 1, col + width - 1).addClass("top");
    $("tr:nth-child(" + (row + height - 1) + ")", this).children().slice(col - 1, col + width - 1).addClass("bottom");
    $("tr", this).slice(row - 1, row + height - 1).each(function() {
      $(":nth-child(" + col + ")", this).addClass("left");
      $(":nth-child(" + (col + width - 1) + ")", this).addClass("right");
    });
  });
}
</script>
</head>
<body>

<table cellspacing="0">
  <tr>
    <td>no border</td>
    <td>no border here either</td>
  </tr>
  <tr>
    <td>one</td>
    <td>two</td>
  </tr>
  <tr>
    <td>three</td>
    <td>four</td>
  </tr>
  <tr>
    <td colspan="2">once again no borders</td>
  </tr>
</tfoot>
</table>
</html>

I'll happily take suggestions on easier ways to do this...

It's not too hard. Firstly, take a look at FileReader Interface.

So, when the form is submitted, catch the submission process and

var file = document.getElementById('fileBox').files[0]; //Files[0] = 1st file
var reader = new FileReader();
reader.readAsText(file, 'UTF-8');
reader.onload = shipOff;
//reader.onloadstart = ...
//reader.onprogress = ... <-- Allows you to update a progress bar.
//reader.onabort = ...
//reader.onerror = ...
//reader.onloadend = ...


function shipOff(event) {
    var result = event.target.result;
    var fileName = document.getElementById('fileBox').files[0].name; //Should be 'picture.jpg'
    $.post('/myscript.php', { data: result, name: fileName }, continueSubmission);
}

Then, on the server side (i.e. myscript.php):

$data = $_POST['data'];
$fileName = $_POST['name'];
$serverFile = time().$fileName;
$fp = fopen('/uploads/'.$serverFile,'w'); //Prepends timestamp to prevent overwriting
fwrite($fp, $data);
fclose($fp);
$returnData = array( "serverFile" => $serverFile );
echo json_encode($returnData);

Or something like it. I may be mistaken (and if I am, please, correct me), but this should store the file as something like 1287916771myPicture.jpg in /uploads/ on your server, and respond with a JSON variable (to a continueSubmission() function) containing the fileName on the server.

Check out fwrite() and jQuery.post().

On the above page it details how to use readAsBinaryString(), readAsDataUrl(), and readAsArrayBuffer() for your other needs (e.g. images, videos, etc).

I have now come up with an own solution to this:

1. Created a general function to extract specific attributes from arrays

The function below extract only specific attributes from an associative array, or an array of associative arrays (the last is what you get when doing $collection->toArray() in Laravel).

It can be used like this:

$data = array_extract( $collection->toArray(), ['id','url'] );

I am using the following functions:

function array_is_assoc( $array )
{
        return is_array( $array ) && array_diff_key( $array, array_keys(array_keys($array)) );
}



function array_extract( $array, $attributes )
{
    $data = [];

    if ( array_is_assoc( $array ) )
    {
        foreach ( $attributes as $attribute )
        {
            $data[ $attribute ] = $array[ $attribute ];
        }
    }
    else
    {
        foreach ( $array as $key => $values )
        {
            $data[ $key ] = [];

            foreach ( $attributes as $attribute )
            {
                $data[ $key ][ $attribute ] = $values[ $attribute ];
            }
        }   
    }

    return $data;   
}

This solution does not focus on performance implications on looping through the collections in large datasets.

2. Implement the above via a custom collection i Laravel

Since I would like to be able to simply do $collection->extract('id','url'); on any collection object, I have implemented a custom collection class.

First I created a general Model, which extends the Eloquent model, but uses a different collection class. All you models need to extend this custom model, and not the Eloquent Model then.

<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Model as EloquentModel;
use Lib\Collection;
class Model extends EloquentModel
{
    public function newCollection(array $models = [])
    {
        return new Collection( $models );
    }    
}
?>

Secondly I created the following custom collection class:

<?php
namespace Lib;
use Illuminate\Support\Collection as EloquentCollection;
class Collection extends EloquentCollection
{
    public function extract()
    {
        $attributes = func_get_args();
        return array_extract( $this->toArray(), $attributes );
    }
}   
?>

Lastly, all models should then extend your custom model instead, like such:

<?php
namespace App\Models;
class Article extends Model
{
...

Now the functions from no. 1 above are neatly used by the collection to make the $collection->extract() method available.

Parcelable is sort of a standard in Android development. But not because of speed

Parcelable is recommended approach for data transfers. But if you use serializable correctly as shown in this repo, you will see that serializable is sometimes even faster then parcelable. Or at least timings are comparable.

Is Parcelable faster then Serializable?

No, if serialization is done right.

Usual Java serialization on an average Android device (if done right *) is about 3.6 times faster than Parcelable for writes and about 1.6 times faster for reads. Also it proves that Java Serialization (if done right) is fast storage mechanism that gives acceptable results even with relatively large object graphs of 11000 objects with 10 fields each.

* The sidenote is that usually everybody who blindly states that "Parcelable is mush faster" compares it to default automatic serialization, which uses much reflection inside. This is unfair comparison, because Parcelable uses manual (and very complicated) procedure of writing data to the stream. What is usually not mentioned is that standard Java Serializable according to the docs can also be done in a manual way, using writeObject() and readObject() methods. For more info see JavaDocs. This is how it should be done for the best performance.

So, if serializable is faster and easier to implement, why android has parcelable at all?

The reason is native code. Parcelable is created not just for interprocess communication. It also can be used for intercode communication. You can send and recieve objects from C++ native layer. That's it.

What should you choose? Both will work good. But I think that Parcelable is better choice since it is recommended by google and as you can see from this thread is much more appreciated.

I add credentials for HttpWebRequest.

myReq.UseDefaultCredentials = true;
myReq.PreAuthenticate = true;
myReq.Credentials = CredentialCache.DefaultCredentials;

By design, getRequestURL() gives you the full URL, missing only the query string.

In HttpServletRequest, you can get individual parts of the URI using the methods below:

// Example: http://myhost:8080/people?lastname=Fox&age=30

String uri = request.getScheme() + "://" +   // "http" + "://
             request.getServerName() +       // "myhost"
             ":" +                           // ":"
             request.getServerPort() +       // "8080"
             request.getRequestURI() +       // "/people"
             "?" +                           // "?"
             request.getQueryString();       // "lastname=Fox&age=30"

• .getScheme() will give you "https" if it was a https://domain request.
• .getServerName() gives domain on http(s)://domain.
• .getServerPort() will give you the port.

Use the snippet below:

String uri = request.getScheme() + "://" +
             request.getServerName() + 
             ("http".equals(request.getScheme()) && request.getServerPort() == 80 || "https".equals(request.getScheme()) && request.getServerPort() == 443 ? "" : ":" + request.getServerPort() ) +
             request.getRequestURI() +
            (request.getQueryString() != null ? "?" + request.getQueryString() : "");

This snippet above will get the full URI, hiding the port if the default one was used, and not adding the "?" and the query string if the latter was not provided.

Proxied requests

Note, that if your request passes through a proxy, you need to look at the X-Forwarded-Proto header since the scheme might be altered:

request.getHeader("X-Forwarded-Proto")

Also, a common header is X-Forwarded-For, which show the original request IP instead of the proxys IP.

request.getHeader("X-Forwarded-For")

If you are responsible for the configuration of the proxy/load balancer yourself, you need to ensure that these headers are set upon forwarding.

What is your codebase? Java or C++?

eUML2 for Java is a powerful UML modeler designed for Java developper in Eclipse. The free edition can be used for commercial use. It supports the following features:

• CVS and Team Support
• Designed for large project with multiple and customizable model views
• Helios Compliant
• Real-time code/model synchronization
• UML2.1 compliant and support of OMG XMI
• JDK 1.4 and 1.5 support

• The commercial edition provides:

• Advanced reversed engineering

• Powerful true dependency analyze tools
• UML Profile and MDD
• Database tools
• Customizable template support

The other great thing about SharpDevelop is the ability to translate solutions between the two big managed .NET languages VB.NET and C#. I believe it doesn't work for "websites" but it does for web application projects.

@Joao Marcos solution works for me but I had to modify the code to make it work on IE, below if what the code looks like

       downloadFile(url,filename) {
        var that = this;
        const extension =  url.split('/').pop().split('?')[0].split('.').pop();

        var req = new XMLHttpRequest();
        req.open("GET", url, true);
        req.responseType = "blob";
        req.onload = function (event) {
            const fileName = `${filename}.${extension}`;
            const blob = req.response;

            if (window.navigator.msSaveBlob) { // IE
                window.navigator.msSaveOrOpenBlob(blob, fileName);
            } 
            const link = document.createElement('a');
            link.href = window.URL.createObjectURL(blob);                
            link.download = fileName;
            link.click();
            URL.revokeObjectURL(link.href);

        };

        req.send();
    },

  for(var i = 0; i < BoardMessages.length;i++){
        (function(j){
            console.log("Loading message %d".green, j);
            htmlMessageboardString += MessageToHTMLString(BoardMessages[j]);
        })(i);
  }

That should work; however, you should never create a function in a loop. Therefore,

  for(var i = 0; i < BoardMessages.length;i++){
        composeMessage(BoardMessages[i]);
  }

  function composeMessage(message){
      console.log("Loading message %d".green, message);
      htmlMessageboardString += MessageToHTMLString(message);
  }

calling getImageData every time will slow the process ... to speed up things i recommend store image data and then you can get pix value easily and quickly, so do something like this for better performance

// keep it global
let imgData = false;  // initially no image data we have

// create some function block 
if(imgData === false){   
  // fetch once canvas data     
  var ctx = canvas.getContext("2d");
  imgData = ctx.getImageData(0, 0, canvas.width, canvas.height);
}
    // Prepare your X Y coordinates which you will be fetching from your mouse loc
    let x = 100;   // 
    let y = 100;
    // locate index of current pixel
    let index = (y * imgData.width + x) * 4;

        let red = imgData.data[index];
        let green = imgData.data[index+1];
        let blue = imgData.data[index+2];
        let alpha = imgData.data[index+3];
   // Output
   console.log('pix x ' + x +' y '+y+ ' index '+index +' COLOR '+red+','+green+','+blue+','+alpha);

If you import the csv file as a data.frame (and not matrix), you can also use summary.default

summary.default(mtcars)

     Length Class  Mode   
mpg  32     -none- numeric
cyl  32     -none- numeric
disp 32     -none- numeric
hp   32     -none- numeric
drat 32     -none- numeric
wt   32     -none- numeric
qsec 32     -none- numeric
vs   32     -none- numeric
am   32     -none- numeric
gear 32     -none- numeric
carb 32     -none- numeric

Event listeners

First off it's important to understand that there are two kinds of "event listeners":

1. Scope event listeners registered via $on:

   $scope.$on('anEvent', function (event, data) {
     ...
   });
   

2. Event handlers attached to elements via for example on or bind:

   element.on('click', function (event) {
     ...
   });
   

$scope.$destroy()

When $scope.$destroy() is executed it will remove all listeners registered via $on on that $scope.

It will not remove DOM elements or any attached event handlers of the second kind.

This means that calling $scope.$destroy() manually from example within a directive's link function will not remove a handler attached via for example element.on, nor the DOM element itself.

element.remove()

Note that remove is a jqLite method (or a jQuery method if jQuery is loaded before AngularjS) and is not available on a standard DOM Element Object.

When element.remove() is executed that element and all of its children will be removed from the DOM together will all event handlers attached via for example element.on.

It will not destroy the $scope associated with the element.

To make it more confusing there is also a jQuery event called $destroy. Sometimes when working with third-party jQuery libraries that remove elements, or if you remove them manually, you might need to perform clean up when that happens:

element.on('$destroy', function () {
  scope.$destroy();
});

What to do when a directive is "destroyed"

This depends on how the directive is "destroyed".

A normal case is that a directive is destroyed because ng-view changes the current view. When this happens the ng-view directive will destroy the associated $scope, sever all the references to its parent scope and call remove() on the element.

This means that if that view contains a directive with this in its link function when it's destroyed by ng-view:

scope.$on('anEvent', function () {
 ...
});

element.on('click', function () {
 ...
});

Both event listeners will be removed automatically.

However, it's important to note that the code inside these listeners can still cause memory leaks, for example if you have achieved the common JS memory leak pattern circular references.

Even in this normal case of a directive getting destroyed due to a view changing there are things you might need to manually clean up.

For example if you have registered a listener on $rootScope:

var unregisterFn = $rootScope.$on('anEvent', function () {});

scope.$on('$destroy', unregisterFn);

This is needed since $rootScope is never destroyed during the lifetime of the application.

The same goes if you are using another pub/sub implementation that doesn't automatically perform the necessary cleanup when the $scope is destroyed, or if your directive passes callbacks to services.

Another situation would be to cancel $interval/$timeout:

var promise = $interval(function () {}, 1000);

scope.$on('$destroy', function () {
  $interval.cancel(promise);
});

If your directive attaches event handlers to elements for example outside the current view, you need to manually clean those up as well:

var windowClick = function () {
   ...
};

angular.element(window).on('click', windowClick);

scope.$on('$destroy', function () {
  angular.element(window).off('click', windowClick);
});

These were some examples of what to do when directives are "destroyed" by Angular, for example by ng-view or ng-if.

If you have custom directives that manage the lifecycle of DOM elements etc. it will of course get more complex.

Basically, Serializable is a marker interface that implies that a class is safe for serialization and the JVM determines how it is serialized. Externalizable contains 2 methods, readExternal and writeExternal. Externalizable allows the implementer to decide how an object is serialized, where as Serializable serializes objects the default way.

You can use command prompt to open explorer with path.

here example with batch or command prompt:

start "" explorer.exe (path)

so In VBA ms.access you can write with:

Dim Path
Path="C:\Example"
shell "cmd /c start """" explorer.exe " & Path ,vbHide

Terminates this process and gives the underlying operating system the specified exit code.

https://msdn.microsoft.com/en-us/library/system.environment.exit%28v=vs.110%29.aspx

[Environment]::Exit(1)

This will allow you to exit with a specific exit code, that can be picked up from the caller.

In my case I had to delete the services in my installshield project and start from square one. My original service components were added manually and I couldn't get them working, the only error I was getting was the same "Error 1920 service failed to start. Verify that you have sufficient privileges to start system services." that you were getting. After deleting my components, I re-added them using the component wizard.

I actually had to create two new components. One was of type "Install Service".

The other component I had to add was of "Control Service" type.

I had to choose the service that I had setup when I added the Install Service component.

After that it worked, even though nothing looked differently from the components I had added manually. Installshield must do something behind the scenes when it wires up the service components with the component wizard.

All of this was with Install Shield 2016.

Or you can use this:

    char *ExtractFileExt(char *FileName)
    {
        std::string s = FileName;
        int Len = s.length();
        while(TRUE)
        {
            if(FileName[Len] != '.')
                Len--;
            else
            {
                char *Ext = new char[s.length()-Len+1];
                for(int a=0; a<s.length()-Len; a++)
                    Ext[a] = FileName[s.length()-(s.length()-Len)+a];
                Ext[s.length()-Len] = '\0';
                return Ext;
            }
        }
    }

This code is cross-platform

What do you mean exactly? Do you want to reuse the result of your query for an other query?

In that case, why don't you combine both queries, by making the second query search inside the results of the first one (SELECT xxx in (SELECT yyy...)

>>> x = "a (b) c (d) e"
>>> re.search(r"\(.*\)", x).group()
'(b) c (d)'
>>> re.search(r"\(.*?\)", x).group()
'(b)'

According to the docs:

The '*', '+', and '?' qualifiers are all greedy; they match as much text as possible. Sometimes this behavior isn’t desired; if the RE <.*> is matched against '<H1>title</H1>', it will match the entire string, and not just '<H1>'. Adding '?' after the qualifier makes it perform the match in non-greedy or minimal fashion; as few characters as possible will be matched. Using .*? in the previous expression will match only '<H1>'.

In date '?', the '?' is a literal string with value ?, not a parameter placeholder, so your query does not have any parameters. The date is a shorthand cast from (literal) string to date. You need to replace date '?' with ? to actually have a parameter.

Also if you know it is a date, then use setDate(..) and not setString(..) to set the parameter.

Short answer: you want to set the handler to a function:

elemm.onclick = function() { alert('blah'); };

Slightly longer answer: you'll have to write a few more lines of code to get that to work consistently across browsers.

The fact is that even the sligthly-longer-code that might solve that particular problem across a set of common browsers will still come with problems of its own. So if you don't care about cross-browser support, go with the totally short one. If you care about it and absolutely only want to get this one single thing working, go with a combination of addEventListener and attachEvent. If you want to be able to extensively create objects and add and remove event listeners throughout your code, and want that to work across browsers, you definitely want to delegate that responsibility to a library such as jQuery.

To complement the Perl one-liner, here's its awk equivalent:

awk 'NR==FNR{arr[$0];next} $0 in arr' file1 file2

This will read all lines from file1 into the array arr[], and then check for each line in file2 if it already exists within the array (i.e. file1). The lines that are found will be printed in the order in which they appear in file2. Note that the comparison in arr uses the entire line from file2 as index to the array, so it will only report exact matches on entire lines.

In my case Drag & Drop didn't work.

1. I had to first Sync iTunes with the iOS device (Sync button on the bottom right)
2. I had to add the IPA file through iTunes menu bar: File -> Add to Library...
3. I had to press the "Install" button for my app in the "Apps" screen
4. I had to press the "Apply" button on the bottom right

CREATE TABLE Employees
(
    Id int,
    Name varchar(50) not null,
    Photo varbinary(max) not null
)


INSERT INTO Employees (Id, Name, Photo) 
SELECT 10, 'John', BulkColumn 
FROM Openrowset( Bulk 'C:\photo.bmp', Single_Blob) as EmployeePicture

function sample() {
    alert("This is sample function");
}

$(function() {
    $("#button").click(function() {
        setTimeout(sample, 2000);
    });

});

jsFiddle.

If you want to encapsulate sample() there, wrap the whole thing in a self invoking function (function() { ... })().

I had the same error. I know this thread is pretty much dead already but I want to set another option besides "anonymous procedure".

I solved it like this:

1. Check if the stored procedure exist:

   IF NOT EXISTS (SELECT * FROM sysobjects WHERE name='my_procedure') BEGIN
       print 'exists'  -- or watever you want
   END ELSE BEGIN
       print 'doesn''texists'   -- or watever you want
   END
   

2. However the "CREATE/ALTER PROCEDURE' must be the first statement in a query batch" is still there. I solved it like this:

   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   
   CREATE -- view procedure function or anything you want ...
   

3. I end up with this code:

   IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID('my_procedure'))
   BEGIN
       DROP PROCEDURE my_procedure
   END
   
   SET ANSI_NULLS ON
   GO
   SET QUOTED_IDENTIFIER ON
   GO
   
   CREATE PROCEDURE [dbo].my_procedure ...
   

Ctrl+[ (Move to corresponding })

Ctrl+Shift+V (Cycle clipboard)

You Only Need to close the bufferedReader i.e reader.close() and it will work fine .

You will not able to convert it into data frame until you use implicit conversion.

val sqlContext = new SqlContext(new SparkContext())

import sqlContext.implicits._

After this only you can convert this to data frame

case class Test(id:String,filed2:String)

val myFile = sc.textFile("file.txt")

val df= myFile.map( x => x.split(";") ).map( x=> Test(x(0),x(1)) ).toDF()

The fastest way on Linux (the question is tagged as Linux), is to use a direct system call. Here's a little program that counts files (only, no directories) in a directory. You can count millions of files and it is around 2.5 times faster than "ls -f" and around 1.3-1.5 times faster than Christopher Schultz's answer.

#define _GNU_SOURCE
#include <dirent.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/syscall.h>

#define BUF_SIZE 4096

struct linux_dirent {
    long d_ino;
    off_t d_off;
    unsigned short d_reclen;
    char d_name[];
};

int countDir(char *dir) {

    int fd, nread, bpos, numFiles = 0;
    char d_type, buf[BUF_SIZE];
    struct linux_dirent *dirEntry;

    fd = open(dir, O_RDONLY | O_DIRECTORY);
    if (fd == -1) {
        puts("open directory error");
        exit(3);
    }
    while (1) {
        nread = syscall(SYS_getdents, fd, buf, BUF_SIZE);
        if (nread == -1) {
            puts("getdents error");
            exit(1);
        }
        if (nread == 0) {
            break;
        }

        for (bpos = 0; bpos < nread;) {
            dirEntry = (struct linux_dirent *) (buf + bpos);
            d_type = *(buf + bpos + dirEntry->d_reclen - 1);
            if (d_type == DT_REG) {
                // Increase counter
                numFiles++;
            }
            bpos += dirEntry->d_reclen;
        }
    }
    close(fd);

    return numFiles;
}

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

    if (argc != 2) {
        puts("Pass directory as parameter");
        return 2;
    }
    printf("Number of files in %s: %d\n", argv[1], countDir(argv[1]));
    return 0;
}

PS: It is not recursive, but you could modify it to achieve that.

This does it:

Do
   c = c + 1
Loop While Cells(c, "A").Value <> ""

'prints the last empty row
Debug.Print c

The Homebrew package manager includes launchctl plists to start automatically. For more information, run brew info postgres.

Start manually

pg_ctl -D /usr/local/var/postgres start

Stop manually

pg_ctl -D /usr/local/var/postgres stop

Start automatically

"To have launchd start postgresql now and restart at login:"

brew services start postgresql

What is the result of pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start?

What is the result of pg_ctl -D /usr/local/var/postgres status?

Are there any error messages in the server.log?

Make sure tcp localhost connections are enabled in pg_hba.conf:

# IPv4 local connections:
host    all    all    127.0.0.1/32    trust

Check the listen_addresses and port in postgresql.conf:

egrep 'listen|port' /usr/local/var/postgres/postgresql.conf

#listen_addresses = 'localhost'        # What IP address(es) to listen on;
#port = 5432                # (change requires restart)

Cleaning up

PostgreSQL was most likely installed via Homebrew, Fink, MacPorts or the EnterpriseDB installer.

Check the output of the following commands to determine which package manager it was installed with:

brew && brew list|grep postgres
fink && fink list|grep postgres
port && port installed|grep postgres

For everyone stumbling upon this post because pandas gets mentioned, you now have the very elegant and straighforward option of directly accessing the secondary_y axis in pandas with ax.right_ax

So paraphrasing the example initially posted, you would write:

table = sql.read_frame(query,connection)

ax = table[[0, 1]].plot(ylim=(0,100), secondary_y=table[1])
ax.set_ylabel('$')
ax.right_ax.set_ylabel('Your second Y-Axis Label goes here!')

(this is already mentioned in these posts as well: 1 2)

I didn't find find the correct jsonpath filter syntax to extract a value from a name-value pair in json.

Here's the syntax and an abbreviated sample twitter document below.

This site was useful for testing:

The jsonpath filter expression:

.events[0].attributes[?(@.name=='screen_name')].value

Test document:

{
  "title" : "test twitter",
  "priority" : 5,
  "events" : [ {
    "eventId" : "150d3939-1bc4-4bcb-8f88-6153053a2c3e",
    "eventDate" : "2015-03-27T09:07:48-0500",
    "publisher" : "twitter",
    "type" : "tweet",
    "attributes" : [ {
      "name" : "filter_level",
      "value" : "low"
    }, {
      "name" : "screen_name",
      "value" : "_ziadin"
    }, {
      "name" : "followers_count",
      "value" : "406"
    } ]
  } ]
}

You have to include classpath to your javac and java commands

javac -cp . PackageName/*.java
java -cp . PackageName/ClassName_Having_main

suppose you have the following

Package Named: com.test Class Name: Hello (Having main) file is located inside "src/com/test/Hello.java"

from outside directory:

$ cd src
$ javac -cp . com/test/*.java
$ java -cp . com/test/Hello

• In windows the same thing will be working too, I already tried

For future reference to people who come here. after you run the command that was given in the third answer here(I am using now Laravel 5.3).

php artisan config:cache

You may encounter this problem:

[ReflectionException]
Class view does not exist

In that case, you need to add it back manually to your provider list under the app.php file. GO-TO: app->config->app.php->'providers[]' and add it, like so:

Illuminate\View\ViewServiceProvider::class,

Hope That helps someone.

gradle.properties:

theGroup=some.group
theName=someName
theVersion=1.0
theSourceCompatibility=1.6

settings.gradle:

rootProject.name = theName

build.gradle:

apply plugin: "java"

group = theGroup
version = theVersion
sourceCompatibility = theSourceCompatibility

A continue statement without a label will re-execute from the condition the innermost while or do loop, and from the update expression of the innermost for loop. It is often used to early-terminate a loop's processing and thereby avoid deeply-nested if statements. In the following example continue will get the next line, without processing the following statement in the loop.

while (getNext(line)) {
  if (line.isEmpty() || line.isComment())
    continue;
  // More code here
}

With a label, continue will re-execute from the loop with the corresponding label, rather than the innermost loop. This can be used to escape deeply-nested loops, or simply for clarity.

Sometimes continue is also used as a placeholder in order to make an empty loop body more clear.

for (count = 0; foo.moreData(); count++)
  continue;

The same statement without a label also exists in C and C++. The equivalent in Perl is next.

This type of control flow is not recommended, but if you so choose you can also use continue to simulate a limited form of goto. In the following example the continue will re-execute the empty for (;;) loop.

aLoopName: for (;;) {
  // ...
  while (someCondition)
  // ...
    if (otherCondition)
      continue aLoopName;

tldr;

I used this command to get the ip address of my Ethernet network adapter into a variable called IP.

for /f "tokens=3 delims=: " %i  in ('netsh interface ip show config name^="Ethernet" ^| findstr "IP Address"') do set IP=%i

For those who are curious to know what all that means, read on

Most commands using ipconfig for example just print out all your IP addresses and I needed a specific one which in my case was for my Ethernet network adapter.

You can see your list of network adapters by using the netsh interface ipv4 show interfaces command. Most people need Wi-Fi or Ethernet.

You'll see a table like so in the output to the command prompt:

Idx     Met         MTU          State                Name
---  ----------  ----------  ------------  ---------------------------
  1          75  4294967295  connected     Loopback Pseudo-Interface 1
 15          25        1500  connected     Ethernet
 17        5000        1500  connected     vEthernet (Default Switch)
 32          15        1500  connected     vEthernet (DockerNAT)

In the name column you should find the network adapter you want (i.e. Ethernet, Wi-Fi etc.).

As mentioned, I was interested in Ethernet in my case.

To get the IP for that adapter we can use the netsh command:

netsh interface ip show config name="Ethernet"

This gives us this output:

Configuration for interface "Ethernet"
    DHCP enabled:                         Yes
    IP Address:                           169.252.27.59
    Subnet Prefix:                        169.252.0.0/16 (mask 255.255.0.0)
    InterfaceMetric:                      25
    DNS servers configured through DHCP:  None
    Register with which suffix:           Primary only
    WINS servers configured through DHCP: None

(I faked the actual IP number above for security reasons )

I can further specify which line I want using the findstr command in the ms-dos command prompt. Here I want the line containing the string IP Address.

netsh interface ip show config name="Ethernet" | findstr "IP Address"

This gives the following output:

 IP Address:                           169.252.27.59

I can then use the for command that allows me to parse files (or multiline strings in this case) and split out the strings' contents based on a delimiter and the item number that I'm interested in.

Note that I am looking for the third item (tokens=3) and that I am using the space character and : as my delimiters (delims=: ).

for /f "tokens=3 delims=: " %i  in ('netsh interface ip show config name^="Ethernet" ^| findstr "IP Address"') do set IP=%i

Each value or token in the loop is printed off as the variable %i but I'm only interested in the third "token" or item (hence tokens=3). Note that I had to escape the | and = using a ^

At the end of the for command you can specify a command to run with the content that is returned. In this case I am using set to assign the value to an environment variable called IP. If you want you could also just echo the value or what ever you like.

With that you get an environment variable with the IP Address of your preferred network adapter assigned to an environment variable. Pretty neat, huh?

If you have any ideas for improving please leave a comment.

This XPath is specific to the code snippet you've provided. To select <child> with id as #grand you can write //child[@id='#grand'].

To get age //child[@id='#grand']/@age

Hope this helps

Hope this helps, and returns only number of tables in a database

Use database;

SELECT COUNT(*) FROM sys.tables;

-z string True if the string is null (an empty string)

Consider:

Double.isFinite (value) && Double.compare (value, StrictMath.rint (value)) == 0

This sticks to core Java and avoids an equality comparison between floating point values (==) which is consdered bad. The isFinite() is necessary as rint() will pass-through infinity values.

A global variable for using in controllers; you can set in AppServiceProvider like this :

public function boot()
{
    $company=DB::table('company')->where('id',1)->first();
    config(['yourconfig.company' => $company]);
}

usage

config('yourconfig.company');

I managed to find a solution using css/jQuery that I'm comfortable with. The original issue: I had to force the visibility to be shown while animating as I have elements hanging outside the area. Doing so, made large blocks of text now hang outside the content area during animation as well.

The solution was to start the main text elements with an opacity of 0 and use addClass to inject and transition to an opacity of 1. Then removeClass when clicked on again.

I'm sure there's an all jQquery way to do this. I'm just not the guy to do it. :)

So in it's most basic form...

.slideDown().addClass("load");
.slideUp().removeClass("load");

Thanks for the help everyone.

To get the lines that contain the texts 8768, 9875 or 2353, use:

^.*(8768|9875|2353).*$

What it means:

^                      from the beginning of the line
.*                     get any character except \n (0 or more times)
(8768|9875|2353)       if the line contains the string '8768' OR '9875' OR '2353'
.*                     and get any character except \n (0 or more times)
$                      until the end of the line

If you do want the literal * char, you'd have to escape it:

^.*(\*8768|\*9875|\*2353).*$

Like other have said, span is an in-line element.

See here: http://www.w3.org/TR/CSS2/visuren.html

Additionally, you can make a span behave like a div by applying a

style="display: block; margin: 0px auto; text-align: center;"

if and grep -Eq

arg='abc'
if echo "$arg" | grep -Eq 'a.c|d.*'; then
  echo 'first'
elif echo "$arg" | grep -Eq 'a{2,3}'; then
  echo 'second'
fi

where:

• -q prevents grep from producing output, it just produces the exit status
• -E enables extended regular expressions

I like this because:

• it is POSIX 7
• it supports extended regular expressions, unlike POSIX case
• the syntax is less clunky than case statements when there are few cases

One downside is that this is likely slower than case since it calls an external grep program, but I tend to consider performance last when using Bash.

case is POSIX 7

Bash appears to follow POSIX by default without shopt as mentioned by https://stackoverflow.com/a/4555979/895245

Here is the quote: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_01 section "Case Conditional Construct":

The conditional construct case shall execute the compound-list corresponding to the first one of several patterns (see Pattern Matching Notation) [...] Multiple patterns with the same compound-list shall be delimited by the '|' symbol. [...]

The format for the case construct is as follows:

case word in
     [(] pattern1 ) compound-list ;;
     [[(] pattern[ | pattern] ... ) compound-list ;;] ...
     [[(] pattern[ | pattern] ... ) compound-list]
  esac

and then http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_13 section "2.13. Pattern Matching Notation" only mentions ?, * and [].

If you encounter this error when you click green arrow button to run the application, but still want to run the app in 64 bit. You can do this in VS 2013, 2015, 2017, and 2019

Go to: Tools > Options > Projects and Solutions > Web Projects > Use the 64 bit version of IIS Express

Check out the boost NumericConversion library. It will allow to explicitly control how you want to deal with issues like overflow handling and truncation.

Another way that you can use is a query like this:

SELECT DISTINCT
    LTRIM(m.n.value('.[1]','varchar(8000)')) as columnName
FROM 
    (SELECT CAST('<XMLRoot><RowData>' + REPLACE(t.val,',','</RowData><RowData>') + '</RowData></XMLRoot>' AS XML) AS x
     FROM (SELECT '1, 1, 1, 2, 5, 1, 6') AS t(val)
    ) dt
  CROSS APPLY 
    x.nodes('/XMLRoot/RowData') m(n);

Maybe selenium can do it.

from selenium import webdriver
import time

driver = webdriver.Firefox()
driver.get(url)
time.sleep(5)
htmlSource = driver.page_source

Figuring out what path to take requires answering not only CommonsWare's key question of "why" but also the question of "to what?" are you passing it.

The reality is that the only thing that can go through bundles is plain data - everything else is based on interpretations of what that data means or points to. You can't literally pass an object, but what you can do is one of three things:

1) You can break the object down to its constitute data, and if what's on the other end has knowledge of the same sort of object, it can assemble a clone from the serialized data. That's how most of the common types pass through bundles.

2) You can pass an opaque handle. If you are passing it within the same context (though one might ask why bother) that will be a handle you can invoke or dereference. But if you pass it through Binder to a different context it's literal value will be an arbitrary number (in fact, these arbitrary numbers count sequentially from startup). You can't do anything but keep track of it, until you pass it back to the original context which will cause Binder to transform it back into the original handle, making it useful again.

3) You can pass a magic handle, such as a file descriptor or reference to certain os/platform objects, and if you set the right flags Binder will create a clone pointing to the same resource for the recipient, which can actually be used on the other end. But this only works for a very few types of objects.

Most likely, you are either passing your class just so the other end can keep track of it and give it back to you later, or you are passing it to a context where a clone can be created from serialized constituent data... or else you are trying to do something that just isn't going to work and you need to rethink the whole approach.

I use this regex in Java ^(0[1-9]|1[012])[/](0[1-9]|[12][0-9]|3[01])[/](19|[2-9][0-9])[0-9]{2}$

Works from 1900 to 9999

Use repr() and The difference between using repr and str

Using repr:

>>> try:
...     print(x)
... except Exception as e:
...     print(repr(e))
... 
NameError("name 'x' is not defined")

Using str:

>>> try:
...     print(x)
... except Exception as e:
...     print(str(e))
... 
name 'x' is not defined

$date = '2009-10-22';
$sepparator = '-';
$parts = explode($sepparator, $date);
$dayForDate = date("l", mktime(0, 0, 0, $parts[1], $parts[2], $parts[0]));

Actually ngAfterViewInit() will initiate only once when the component initiate.

If you really want a event triggers after the HTML element renter on the screen then you can use ngAfterViewChecked()

I use <span style="display: inline-block; width: 2ch;">&#9;</span> for a two characters wide tab.

The easiest way is probably to check the PATH environment variable of the process that is connecting to the database. Most likely the tnsnames.ora file is in first Oracle bin directory in path..\network\admin. TNS_ADMIN environment variable or value in registry (for the current Oracle home) may override this.

Using filemon like suggested by others will also do the trick.

I just managed to make the filter regex work: /^((?!Fallback\sfont).)*$/.

Add it to the filter field just above the console and it'll hide all messages containing Fallback font.

You can make it more specific if you want.

git log --pretty=oneline tagA...tagB (i.e. three dots)

If you just wanted commits reachable from tagB but not tagA:

git log --pretty=oneline tagA..tagB (i.e. two dots)

or

git log --pretty=oneline ^tagA tagB

    <br>
    <%String id = request.getParameter("track_id");%>
       <%if (id.length() == 0) {%>
    <b><h1>Please Enter Tracking ID</h1></b>
    <% } else {%>
    <div class="container">
        <table border="1" class="table" >
            <thead>
                <tr class="warning" >
                    <td ><h4>Track ID</h4></td>
                    <td><h4>Source</h4></td>
                    <td><h4>Destination</h4></td>
                    <td><h4>Current Status</h4></td>

                </tr>
            </thead>
            <%
                try {
                    connection = DriverManager.getConnection(connectionUrl + database, userid, password);
                    statement = connection.createStatement();
                    String sql = "select * from track where track_id="+ id;
                    resultSet = statement.executeQuery(sql);
                    while (resultSet.next()) {
            %>
            <tr class="info">
                <td><%=resultSet.getString("track_id")%></td>
                <td><%=resultSet.getString("source")%></td>
                <td><%=resultSet.getString("destination")%></td>
                <td><%=resultSet.getString("status")%></td>
            </tr>
            <%
                    }
                    connection.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            %>
        </table>

        <%}%>
</body>

Just do this,

Paste the following code in place of page = requests.get(url):

import time

page = ''
while page == '':
    try:
        page = requests.get(url)
        break
    except:
        print("Connection refused by the server..")
        print("Let me sleep for 5 seconds")
        print("ZZzzzz...")
        time.sleep(5)
        print("Was a nice sleep, now let me continue...")
        continue

You're welcome :)

If you use this syntax:

<div ng-attr-id="{{ 'object-' + myScopeObject.index }}"></div>

Angular will render something like:

 <div ng-id="object-1"></div>

However this syntax:

<div id="{{ 'object-' + $index }}"></div>

will generate something like:

<div id="object-1"></div>

Just define a helper in application helper directory then call from your controller just function name like

helper name = new_helper.php
function test_method($data){
 return $data
}   

in controller load the helper

$this->load->new_helper();
$result =  test_method('Hello world!');
if($result){
 echo $result
}

output will be

Hello World!

You can remove the reference using null.

Let's say You have class A:

A a = new A();
a=null;

last statement will remove the reference of the object a and that object will be "garbage collected" by JVM. It is one of the easiest ways to do this.

You don't need to configure anything. Just make sure that the requests map to your PHP file and use requests with path info. For example, if you have in the root a file named handler.php with this content:

<?php

var_dump($_SERVER['REQUEST_METHOD']);
var_dump($_SERVER['REQUEST_URI']);
var_dump($_SERVER['PATH_INFO']);

if (($stream = fopen('php://input', "r")) !== FALSE)
    var_dump(stream_get_contents($stream));

The following HTTP request would work:

Established connection with 127.0.0.1 on port 81
PUT /handler.php/bla/foo HTTP/1.1
Host: localhost:81
Content-length: 5
 
boo
HTTP/1.1 200 OK
Date: Sat, 29 May 2010 16:00:20 GMT
Server: Apache/2.2.13 (Win32) PHP/5.3.0
X-Powered-By: PHP/5.3.0
Content-Length: 89
Content-Type: text/html
 
string(3) "PUT"
string(20) "/handler.php/bla/foo"
string(8) "/bla/foo"
string(5) "boo
"
Connection closed remotely.

You can hide the "php" extension with MultiViews or you can make URLs completely logical with mod_rewrite.

See also the documentation for the AcceptPathInfo directive and this question on how to make PHP not parse POST data when enctype is multipart/form-data.

The first argument of strcat() needs to be able to hold enough space for the concatenated string. So allocate a buffer with enough space to receive the result.

char bigEnough[64] = "";

strcat(bigEnough, "TEXT");
strcat(bigEnough, foo);

/* and so on */

strcat() will concatenate the second argument with the first argument, and store the result in the first argument, the returned char* is simply this first argument, and only for your convenience.

You do not get a newly allocated string with the first and second argument concatenated, which I'd guess you expected based on your code.

I faced the same issue while running my project: I found out that if your project is using specific version of any thing in package.json find out that and install the specific version of that dependencies like for me, npm install @angular/cli@^4.0.0.

chmod 400 /etc/ssh/* works for me.

Try

let bytes = [65,108,105,99,101,39,115,32,65,100,118,101,110,116,117,114,101];_x000D_
_x000D_
let base64data = btoa(String.fromCharCode.apply(null, bytes));_x000D_
_x000D_
let a = document.createElement('a');_x000D_
a.href = 'data:;base64,' + base64data;_x000D_
a.download = 'binFile.txt'; _x000D_
a.click();

I convert here binary data to base64 (for bigger data conversion use this) - during downloading browser decode it automatically and save raw data in file. 2020.06.14 I upgrade Chrome to 83.0 and above SO snippet stop working (probably due to sandbox security restrictions) - but JSFiddle version works - here

If you are inside the fragment then you write the following line of code inside your on click listener, getActivity().onBackPressed(); this works perfectly for me.

document.getElementById("fName").style.border="1px solid black";

The language specification says on p.64f

A construct of the form < T > ( ... ) => { ... } could be parsed as an arrow function expression with a type parameter or a type assertion applied to an arrow function with no type parameter. It is resolved as the former[..]

example:

// helper function needed because Backbone-couchdb's sync does not return a jqxhr
let fetched = <
           R extends Backbone.Collection<any> >(c:R) => {
               return new Promise(function (fulfill, reject) {
                   c.fetch({reset: true, success: fulfill, error: reject})
               });
           };

Just posting in case it help someone else. The cause of this error for me was a missing do after creating a form with form_with. Hope that may help someone else

Use the fall-through feature of the switch statement. A matched case will run until a break (or the end of the switch statement) is found, so you could write it like:

switch (varName)
{
   case "afshin":
   case "saeed":
   case "larry": 
       alert('Hey');
       break;

   default: 
       alert('Default case');
}

jQuery UI Slider (API docs)

You can also get gitk with the git from MacPorts.

sudo port install git

Darin Dimitrov's answer is correct. Just an addition:

Response.AppendHeader("Content-Disposition", cd.ToString()); may cause the browser to fail rendering the file if your response already contains a "Content-Disposition" header. In that case, you may want to use:

Response.Headers.Add("Content-Disposition", cd.ToString());

The var keyword in C#'s main benefit is to enhance readability, not functionality. Technically, the var keywords allows for some other unlocks (e.g. use of anonymous objects), but that seems to be outside the scope of this question. Every variable declared with the var keyword has a type. For instance, you'll find that the following code outputs "String".

var myString = "";
Console.Write(myString.GetType().Name);

Furthermore, the code above is equivalent to:

String myString = "";
Console.Write(myString.GetType().Name);

The var keyword is simply C#'s way of saying "I can figure out the type for myString from the context, so don't worry about specifying the type."

var myVariable = (MyType)null or MyType myVariable = null should work because you are giving the C# compiler context to figure out what type myVariable should will be.

For more information:

• How to initialize var?
• http://msdn.microsoft.com/en-us/library/bb397696.aspx

There is a duplicate with more responses.

One candidate not mentioned yet is spserver.

You need to use the fitBounds() method.

var markers = [];//some array
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < markers.length; i++) {
 bounds.extend(markers[i]);
}

map.fitBounds(bounds);

Documentation from developers.google.com/maps/documentation/javascript:

fitBounds(bounds[, padding])

Parameters:

`bounds`:  [`LatLngBounds`][1]|[`LatLngBoundsLiteral`][1]
`padding` (optional):  number|[`Padding`][1]

Return Value: None

Sets the viewport to contain the given bounds.
Note: When the map is set to display: none, the fitBounds function reads the map's size as 0x0, and therefore does not do anything. To change the viewport while the map is hidden, set the map to visibility: hidden, thereby ensuring the map div has an actual size.

The home-grown core Java solution that I use to decorate existing factories:

public class ThreadFactoryNameDecorator implements ThreadFactory {
    private final ThreadFactory defaultThreadFactory;
    private final String suffix;

    public ThreadFactoryNameDecorator(String suffix) {
        this(Executors.defaultThreadFactory(), suffix);
    }

    public ThreadFactoryNameDecorator(ThreadFactory threadFactory, String suffix) {
        this.defaultThreadFactory = threadFactory;
        this.suffix = suffix;
    }

    @Override
    public Thread newThread(Runnable task) {
        Thread thread = defaultThreadFactory.newThread(task);
        thread.setName(thread.getName() + "-" + suffix);
        return thread;
    }
}

In action:

Executors.newSingleThreadExecutor(new ThreadFactoryNameDecorator("foo"));

I think that you are looking for something like this:

   function rightclick() {
    var rightclick;
    var e = window.event;
    if (e.which) rightclick = (e.which == 3);
    else if (e.button) rightclick = (e.button == 2);
    alert(rightclick); // true or false, you can trap right click here by if comparison
}

(http://www.quirksmode.org/js/events_properties.html)

And then use the onmousedown even with the function rightclick() (if you want to use it globally on whole page you can do this <body onmousedown=rightclick(); >

If you're on the New Google Sheets, this is all you need to do, according to the docs:

change your recalculation setting to "On change and every minute" in your spreadsheet at File > Spreadsheet settings.

This will make the entire sheet update itself every minute, on the server side, regardless of whether you have the spreadsheet up in your browser or not.

If you're on the old Google Sheets, you'll want to add a cell with this formula to achieve the same functionality:

=GoogleClock()

EDIT to include old and new Google Sheets and change to =GoogleClock().

If you run php with php-fpm module,do not forget to run command systemctl restart php-fpm!That will reload php-fpm module.

Sending Simple Mail:

$ mail -s "test message from centos" [email protected]
hello from centos linux command line

Ctrl+D to finish

You just have to double up on the single quotes...

insert into Person (First, Last)
values ('Joe', 'O''Brien')

The answer from Daniel works just perfect. Here is a sample snippet that I added to my build.xml:

<target name="compile">
    <mkdir dir="${classes.dir}"/>
    <javac srcdir="${src.dir}" destdir="${classes.dir}" includeantruntime="false">
                                                 <!--   ^^^^^^^^^^^^^^^^^^^^^^^^^  -->
        <classpath>
            <path id="application" location="${jar.dir}/${ant.project.name}.jar"/>
            <path id="junit" location="${lib.dir}/junit-4.9b2.jar"/>
        </classpath>
    </javac>
</target>

import java.io.*;
import java.util.Scanner;
class ar1 {
    public static void main(String[] args) {
        //Scanner sc=new Scanner(System.in);
        int[] a={10,20,30,40,12,32};
        int bi=0,sm=0;
        //bi=sc.nextInt();
        //sm=sc.nextInt();
        for(int i=0;i<=a.length-1;i++) {
            if(a[i]>a[i+1]) 
                bi=a[i];

            if(a[i]<a[i+1])
                sm=a[i];
        }
        System.out.println("big"+bi+"small"+sm);
    }
}

Update 2019

I tried easy_install at first but it doesn't install packages in a clean and intuitive way. Also when it comes time to remove packages it left a lot of artifacts that needed to be cleaned up.

sudo yum install epel-release
sudo yum install python34-pip
pip install package

Was the solution that worked for me, it installs "pip3" as pip on the system. It also uses standard rpm structure so it clean in its removal. I am not sure what process you would need to take if you want both python2 and python3 package manager on your system.

A @Component requires a view whereas a @Directive does not.

Directives

I liken a @Directive to an Angular 1.0 directive with the option restrict: 'A' (Directives aren't limited to attribute usage.) Directives add behaviour to an existing DOM element or an existing component instance. One example use case for a directive would be to log a click on an element.

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

@Directive({
    selector: "[logOnClick]",
    hostListeners: {
        'click': 'onClick()',
    },
})
class LogOnClick {
    constructor() {}
    onClick() { console.log('Element clicked!'); }
}

Which would be used like so:

<button logOnClick>I log when clicked!</button>

Components

A component, rather than adding/modifying behaviour, actually creates its own view (hierarchy of DOM elements) with attached behaviour. An example use case for this might be a contact card component:

import {Component, View} from '@angular/core';

@Component({
  selector: 'contact-card',
  template: `
    <div>
      <h1>{{name}}</h1>
      <p>{{city}}</p>
    </div>
  `
})
class ContactCard {
  @Input() name: string
  @Input() city: string
  constructor() {}
}

Which would be used like so:

<contact-card [name]="'foo'" [city]="'bar'"></contact-card>

ContactCard is a reusable UI component that we could use anywhere in our application, even within other components. These basically make up the UI building blocks of our applications.

In summary

Write a component when you want to create a reusable set of DOM elements of UI with custom behaviour. Write a directive when you want to write reusable behaviour to supplement existing DOM elements.

Sources:

• @Directive documentation
• @Component documentation
• Helpful blog post

As said above you can put it inside a ScrollView... and if you want the Scroll View to be horizontal put it inside HorizontalScrollView... and if you want your component (or layout) to support both put inside both of them like this:

  <HorizontalScrollView>
        <ScrollView>
            <!-- SOME THING -->
        </ScrollView>
    </HorizontalScrollView>

and with setting the layout_width and layout_height ofcourse.

touchstart or touchend are not good, because if you scroll the page, the device do stuff. So, if I want close a window with tap or click outside the element, and scroll the window, I've done:

$(document).on('touchstart', function() {
    documentClick = true;
});
$(document).on('touchmove', function() {
    documentClick = false;
});
$(document).on('click touchend', function(event) {
    if (event.type == "click") documentClick = true;
    if (documentClick){
        doStuff();
    }
 });

For me I needed to add the remote:

git remote -add myRemoteName('origin' in your case) remoteGitURL

then I could fetch

git fetch myRemoteName

Visual Event is a nice little bookmarklet that you can use to view an element's event handlers. On online demo can be viewed here.

Extending the great answer from Dave. You can create a simple HtmlHelper.

public static IHtmlString RenderAsJson(this HtmlHelper helper, object model)
{
    return helper.Raw(Json.Encode(model));
}

And in your view:

@Html.RenderAsJson(Model)

This way you can centralize the logic for creating the JSON if you, for some reason, would like to change the logic later.

This is similar to Alex's but does it in log time instead of linear, and takes a maxHeight parameter.

jQuery.fn.ellipsis = function(text, maxHeight) {
  var element = $(this);
  var characters = text.length;
  var step = text.length / 2;
  var newText = text;
  while (step > 0) {
    element.html(newText);
    if (element.outerHeight() <= maxHeight) {
      if (text.length == newText.length) {
        step = 0;
      } else {
        characters += step;
        newText = text.substring(0, characters);
      }
    } else {
      characters -= step;
      newText = newText.substring(0, characters);
    }
    step = parseInt(step / 2);
  }
  if (text.length > newText.length) {
    element.html(newText + "...");
    while (element.outerHeight() > maxHeight && newText.length >= 1) {
      newText = newText.substring(0, newText.length - 1);
      element.html(newText + "...");
    }
  }
};

 $array = new SplFixedArray(5);
   echo $array->getSize()."\n";

You can use PHP documentation more info check this link https://www.php.net/manual/en/splfixedarray.setsize.php

The element that you posted looks like it's just copy-pasted from the Google Maps embed feature.

If you'd like to drop markers for the locations that you have, you'll need to write some JavaScript to do so. I'm learning how to do this as well.

Check out the following: https://developers.google.com/maps/documentation/javascript/overlays

It has several examples and code samples that can be easily re-used and adapted to fit your current problem.

This happens where a column is explicitly set to a different collation or the default collation is different in the table queried.

if you have many tables you want to change collation on run this query:

select concat('ALTER TABLE ', t.table_name , ' CONVERT TO CHARACTER 
SET utf8 COLLATE utf8_unicode_ci;') from (SELECT table_name FROM 
information_schema.tables where table_schema='SCHRMA') t;

this will output the queries needed to convert all the tables to use the correct collation per column

In case of multiple type of select and/or if you want to remove already selected items one by one, directly within a dropdown list items, you can use something like:

jQuery("body").on("click", ".result-selected", function() {
    var locID = jQuery(this).attr('class').split('__').pop();
    // I have a class name: class="result-selected locvalue__209"
    var arrayCurrent = jQuery('#searchlocation').val();
    var index = arrayCurrent.indexOf(locID);
    if (index > -1) {
        arrayCurrent.splice(index, 1);
    }
    jQuery('#searchlocation').val(arrayCurrent).trigger('chosen:updated');
});

SELECT CONVERT(varchar, @datetime, 103) --for UK Date format 'DD/MM/YYYY'

101 - US - MM/DD/YYYY

108 - Time - HH:MI:SS

112 - Date - YYYYMMDD

121 - ODBC - YYYY-MM-DD HH:MI:SS.FFF

20 - ODBC - YYYY-MM-DD HH:MI:SS

you can simply use

startDate: 'today'

it working fine for me.

LD_LIBRARY_PATH is Linux specific and is an environment variable pointing to directories where the dynamic loader should look for shared libraries.

Try to add the directory where your .dll is in the PATH variable. Windows will automatically look in the directories listet in this environment variable. LD_LIBRARY_PATH probably won't solve the problem (unless the JVM uses it - I do not know about that).

You could do it if template is a react component.

Template.js

var React = require('react');

var Template = React.createClass({
    render: function(){
        return (<div>Mi HTML</div>);
    }
});

module.exports = Template;

MainComponent.js

var React = require('react');
var ReactDOM = require('react-dom');
var injectTapEventPlugin = require("react-tap-event-plugin");
var Template = require('./Template');

//Needed for React Developer Tools
window.React = React;

//Needed for onTouchTap
//Can go away when react 1.0 release
//Check this repo:
//https://github.com/zilverline/react-tap-event-plugin
injectTapEventPlugin();

var MainComponent = React.createClass({
    render: function() {
        return(
            <Template/>
        );
    }
});

// Render the main app react component into the app div.
// For more details see: https://facebook.github.io/react/docs/top-level-api.html#react.render
ReactDOM.render(
  <MainComponent />,
  document.getElementById('app')
 );

And if you are using Material-UI, for compatibility use Material-UI Components, no normal inputs.

You really should try to use screen. It is a bit more complicated than just doing nohup long_running &, but understanding screen once you never come back again.

Start your screen session at first:

user@host:~$ screen

Run anything you want:

wget http://mirror.yandex.ru/centos/4.6/isos/i386/CentOS-4.6-i386-binDVD.iso

Press ctrl+A and then d. Done. Your session keeps going on in background.

You can list all sessions by screen -ls, and attach to some by screen -r 20673.pts-0.srv command, where 0673.pts-0.srv is an entry list.

This is the best and most precise solution I've found so far.

CSS:

.social .fa {
      margin-right: 1rem;
      border: 2px #fff solid;
      border-radius: 50%;
      height: 20px;
      width: 20px;
      line-height: 20px;
      text-align: center;
      padding: 0.5rem;
    }

Or

help(list.append)

if you're generally poking around.

Quick Fix:

Right click on solution -> Manage NuGet packages for solution -> Under Consolidate you can see if there are different versions of the same package were installed. Uninstall different versions and install the latest one.

I have got an error on the first answer so I have changed some code line.

Please try my new code, it's working for me.

using OfficeOpenXml;
using OfficeOpenXml.Table;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

public static class ImportExcelReader
{
    public static List<T> ImportExcelToList<T>(this ExcelWorksheet worksheet) where T : new()
    {
        //DateTime Conversion
        Func<double, DateTime> convertDateTime = new Func<double, DateTime>(excelDate =>
        {
            if (excelDate < 1)
            {
                throw new ArgumentException("Excel dates cannot be smaller than 0.");
            }

            DateTime dateOfReference = new DateTime(1900, 1, 1);

            if (excelDate > 60d)
            {
                excelDate = excelDate - 2;
            }
            else
            {
                excelDate = excelDate - 1;
            }

            return dateOfReference.AddDays(excelDate);
        });

        ExcelTable table = null;

        if (worksheet.Tables.Any())
        {
            table = worksheet.Tables.FirstOrDefault();
        }
        else
        {
            table = worksheet.Tables.Add(worksheet.Dimension, "tbl" + ShortGuid.NewGuid().ToString());

            ExcelAddressBase newaddy = new ExcelAddressBase(table.Address.Start.Row, table.Address.Start.Column, table.Address.End.Row + 1, table.Address.End.Column);

            //Edit the raw XML by searching for all references to the old address
            table.TableXml.InnerXml = table.TableXml.InnerXml.Replace(table.Address.ToString(), newaddy.ToString());
        }

        //Get the cells based on the table address
        List<IGrouping<int, ExcelRangeBase>> groups = table.WorkSheet.Cells[table.Address.Start.Row, table.Address.Start.Column, table.Address.End.Row, table.Address.End.Column]
            .GroupBy(cell => cell.Start.Row)
            .ToList();

        //Assume the second row represents column data types (big assumption!)
        List<Type> types = groups.Skip(1).FirstOrDefault().Select(rcell => rcell.Value.GetType()).ToList();

        //Get the properties of T
        List<PropertyInfo> modelProperties = new T().GetType().GetProperties().ToList();

        //Assume first row has the column names
        var colnames = groups.FirstOrDefault()
            .Select((hcell, idx) => new
            {
                Name = hcell.Value.ToString(),
                index = idx
            })
            .Where(o => modelProperties.Select(p => p.Name).Contains(o.Name))
            .ToList();

        //Everything after the header is data
        List<List<object>> rowvalues = groups
            .Skip(1) //Exclude header
            .Select(cg => cg.Select(c => c.Value).ToList()).ToList();

        //Create the collection container
        List<T> collection = new List<T>();
        foreach (List<object> row in rowvalues)
        {
            T tnew = new T();
            foreach (var colname in colnames)
            {
                //This is the real wrinkle to using reflection - Excel stores all numbers as double including int
                object val = row[colname.index];
                Type type = types[colname.index];
                PropertyInfo prop = modelProperties.FirstOrDefault(p => p.Name == colname.Name);

                //If it is numeric it is a double since that is how excel stores all numbers
                if (type == typeof(double))
                {
                    //Unbox it
                    double unboxedVal = (double)val;

                    //FAR FROM A COMPLETE LIST!!!
                    if (prop.PropertyType == typeof(int))
                    {
                        prop.SetValue(tnew, (int)unboxedVal);
                    }
                    else if (prop.PropertyType == typeof(double))
                    {
                        prop.SetValue(tnew, unboxedVal);
                    }
                    else if (prop.PropertyType == typeof(DateTime))
                    {
                        prop.SetValue(tnew, convertDateTime(unboxedVal));
                    }
                    else if (prop.PropertyType == typeof(string))
                    {
                        prop.SetValue(tnew, val.ToString());
                    }
                    else
                    {
                        throw new NotImplementedException(string.Format("Type '{0}' not implemented yet!", prop.PropertyType.Name));
                    }
                }
                else
                {
                    //Its a string
                    prop.SetValue(tnew, val);
                }
            }
            collection.Add(tnew);
        }

        return collection;
    }
}

How to call this function? please view below code;

private List<FundraiserStudentListModel> GetStudentsFromExcel(HttpPostedFileBase file)
    {
        List<FundraiserStudentListModel> list = new List<FundraiserStudentListModel>();
        if (file != null)
        {
            try
            {
                using (ExcelPackage package = new ExcelPackage(file.InputStream))
                {
                    ExcelWorkbook workbook = package.Workbook;
                    if (workbook != null)
                    {
                        ExcelWorksheet worksheet = workbook.Worksheets.FirstOrDefault();
                        if (worksheet != null)
                        {
                            list = worksheet.ImportExcelToList<FundraiserStudentListModel>();
                        }
                    }
                }
            }
            catch (Exception err)
            {
                //save error log
            }
        }
        return list;
    }

FundraiserStudentListModel here:

 public class FundraiserStudentListModel
{
    public string Name { get; set; }
    public string Email { get; set; }
    public string Phone { get; set; }
}

Take a look at Simple JavaScript Inheritance and Inheritance Patterns in JavaScript.

The simplest method is probably functional inheritance but there are pros and cons.

use DateTime.ParseExact

string strDate = "24/01/2013";
DateTime date = DateTime.ParseExact(strDate, "dd/MM/YYYY", null)

• DateTime.ParseExact

null will use the current culture, which is somewhat dangerous. Try to supply a specific culture

DateTime date = DateTime.ParseExact(strDate, "dd/MM/YYYY", CultureInfo.InvariantCulture)

The problem is, I think, that JPA was never incepted with the idea in mind that we could have a complex preexisting Schema already in place.

I think there are two main shortcomings resulting from this, specific to Enum:

1. The limitation of using name() and ordinal(). Why not just mark a getter with @Id, the way we do with @Entity?
2. Enum's have usually representation in the database to allow association with all sorts of metadata, including a proper name, a descriptive name, maybe something with localization etc. We need the easy of use of an Enum combined with the flexibility of an Entity.

Help my cause and vote on JPA_SPEC-47

Would this not be more elegant than using a @Converter to solve the problem?

// Note: this code won't work!!
// it is just a sample of how I *would* want it to work!
@Enumerated
public enum Language {
  ENGLISH_US("en-US"),
  ENGLISH_BRITISH("en-BR"),
  FRENCH("fr"),
  FRENCH_CANADIAN("fr-CA");
  @ID
  private String code;
  @Column(name="DESCRIPTION")
  private String description;

  Language(String code) {
    this.code = code;
  }

  public String getCode() {
    return code;
  }

  public String getDescription() {
    return description;
  }
}

I know this is an older thread but I wanted to give what I think to be helpful information.

I personally use PyPy which is really easy to install using pip. I interchangeably use Python/PyPy interpreter, you don't need to change your code at all and I've found it to be roughly 40x faster than the standard python interpreter (Either Python 2x or 3x). I use pyCharm Community Edition to manage my code and I love it.

I like writing code in python as I think it lets you focus more on the task than the language, which is a huge plus for me. And if you need it to be even faster, you can always compile to a binary for Windows, Linux, or Mac (not straight forward but possible with other tools). From my experience, I get about 3.5x speedup over PyPy when compiling, meaning 140x faster than python. PyPy is available for Python 3x and 2x code and again if you use an IDE like PyCharm you can interchange between say PyPy, Cython, and Python very easily (takes a little of initial learning and setup though).

Some people may argue with me on this one, but I find PyPy to be faster than Cython. But they're both great choices though.

Edit: I'd like to make another quick note about compiling: when you compile, the resulting binary is much bigger than your python script as it builds all dependencies into it, etc. But then you get a few distinct benefits: speed!, now the app will work on any machine (depending on which OS you compiled for, if not all. lol) without Python or libraries, it also obfuscates your code and is technically 'production' ready (to a degree). Some compilers also generate C code, which I haven't really looked at or seen if it's useful or just gibberish. Good luck.

Hope that helps.

Excerpt from the Java API for addAll(collection c) in Interface List see here

"Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator (optional operation)."

You you will have as much object as you have in both lists - the number of objects in your first list plus the number of objects you have in your second list - in your case 100.

As the plural in getElementsByName() implies, does it always return list of elements that have this name. So when you have an input element with that name:

<input type="text" name="Tue">

And it is the first one with that name, you have to use document.getElementsByName('Tue')[0] to get the first element of the list of elements with this name.

Beside that are properties case sensitive and the correct spelling of the value property is .value.

The WM_CONCAT function (if included in your database, pre Oracle 11.2) or LISTAGG (starting Oracle 11.2) should do the trick nicely. For example, this gets a comma-delimited list of the table names in your schema:

select listagg(table_name, ', ') within group (order by table_name) 
  from user_tables;

or

select wm_concat(table_name) 
  from user_tables;

More details/options

Link to documentation

If you need to use in Fragment you should use

private Context context;

    @Override
    public void onAttach(Context context) {
        super.onAttach(context);
        this.context = context;
    }


    ((MainActivity)context).runOnUiThread(new Runnable() {
        public void run() {
            Log.d("UI thread", "I am the UI thread");
        }
    });

instead of

getActivity().runOnUiThread(new Runnable() {
    public void run() {
        Log.d("UI thread", "I am the UI thread");
    }
});

Because There will be null pointer exception in some situation like pager fragment

To avoid problems of side effects after changing env, especially using multiple nodes, it is better to set a temporary context.

One safe way to alter the environment is:

 withEnv(['MYTOOL_HOME=/usr/local/mytool']) {
    sh '$MYTOOL_HOME/bin/start'
 }

This approach does not poison the env after the command execution.

in c compiler

a[i]
i[a]
*(a+i)

are different ways to refer to an element in an array ! (NOT AT ALL WEIRD)

enter code here

string string_value= string.Empty;

        for (int i = 0; i < ur_grid.Rows.Count; i++)
        {
            for (int j = 0; j < ur_grid.Rows[i].Cells.Count; j++)
            {
                if (!string.IsNullOrEmpty(ur_grid.Rows[i].Cells[j].Text.ToString()))
                {
                    if (j > 0)
                        string_value= string_value+ "," + ur_grid.Rows[i].Cells[j].Text.ToString();
                    else
                    {
                        if (string.IsNullOrEmpty(string_value))
                            string_value= ur_grid.Rows[i].Cells[j].Text.ToString();
                        else
                            string_value= string_value+ Environment.NewLine + ur_grid.Rows[i].Cells[j].Text.ToString();
                    }
                }
            }
        }


        string where_to_save_file = @"d:\location\Files\sample.csv";
        File.WriteAllText(where_to_save_file, string_value);

        string server_path = "/site/Files/sample.csv";
        Response.ContentType = ContentType;
        Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(server_path));
        Response.WriteFile(server_path);
        Response.End();

dev.off() is the best function, but it clears also all plots. If you want to keep plots in your window, at the beginning save default par settings:

def.par = par()

Then when you use your par functions you still have a backup of default par settings. Later on, after generating plots, finish with:

par(def.par) #go back to default par settings

With this, you keep generated plots and reset par settings.

As described in Documentation Environment.getExternalStorageDirectory() :

Environment.getExternalStorageDirectory() Return the primary shared/external storage directory.

This is an example of how to use it reading an image :

String fileName = "stored_image.jpg";
 String baseDir = Environment.getExternalStorageDirectory().getAbsolutePath();
 String pathDir = baseDir + "/Android/data/com.mypackage.myapplication/";

 File f = new File(pathDir + File.separator + fileName);

        if(f.exists()){
          Log.d("Application", "The file " + file.getName() + " exists!";
         }else{
          Log.d("Application", "The file no longer exists!";
         }

Beside of the inbuilt 'reindent' function, you can also install other plugins, such as SublimeAStyleFormatter and CodeFormatter. These plugins are better for their specify language.

Without Using Powermock .... See the example below based on Ben Glasser answer since it took me some time to figure it out ..hope that saves some times ...

Original Class :

public class AClazz {

    public void updateObject(CClazz cClazzObj) {
        log.debug("Bundler set.");
        cClazzObj.setBundler(new BClazz(cClazzObj, 10));
    } 
}

Modified Class :

@Slf4j
public class AClazz {

    public void updateObject(CClazz cClazzObj) {
        log.debug("Bundler set.");
        cClazzObj.setBundler(getBObject(cClazzObj, 10));
    }

    protected BClazz getBObject(CClazz cClazzObj, int i) {
        return new BClazz(cClazzObj, 10);
    }
 }

Test Class

public class AClazzTest {

    @InjectMocks
    @Spy
    private AClazz aClazzObj;

    @Mock
    private CClazz cClazzObj;

    @Mock
    private BClazz bClassObj;

    @Before
    public void setUp() throws Exception {
        Mockito.doReturn(bClassObj)
               .when(aClazzObj)
               .getBObject(Mockito.eq(cClazzObj), Mockito.anyInt());
    }

    @Test
    public void testConfigStrategy() {
        aClazzObj.updateObject(cClazzObj);

        Mockito.verify(cClazzObj, Mockito.times(1)).setBundler(bClassObj);
    }
}

public int this[int index]
{
    get => values[index];
}

For completeness, the deeper bulleted lists:

Nested deeper levels: ---- leave here an empty row * first level A item - no space in front the bullet character * second level Aa item - 1 space is enough * third level Aaa item - 5 spaces min * second level Ab item - 4 spaces possible too * first level B item

Nested deeper levels:

• first level A item - no space in front the bullet character
  • second level Aa item - 1 space is enough
    • third level Aaa item - 5 spaces min
  • second level Ab item - 4 spaces possible too

• first level B item

  Nested deeper levels:
   ...Skip a line and indent eight spaces. (as said in the editor-help, just on this page)
  * first level A item - no space in front the bullet character
   * second level Aa item - 1 space is enough
       * third level Aaa item - 5 spaces min
      * second level Ab item - 4 spaces possible too
  * first level B item
  
          And there
          could be even more
          such octets of spaces.
  

In my case it was because I had another folder that contained xampp and all it's files (htdocs, php e.t.c). Like I installed Xampp twice in different directories and for some reason the configurations of the other one was affecting my current xampp directory and so I had to change the memory size in the php.ini file of the other directory too.

I ran into similar problem - Invalid value encountered in ... After spending a lot of time trying to figure out what is causing this error I believe in my case it was due to NaN in my dataframe. Check out working with missing data in pandas.

None == None True

np.nan == np.nan False

When NaN is not equal to NaN then arithmetic operations like division and multiplication causes it throw this error.

Couple of things you can do to avoid this problem:

1. Use pd.set_option to set number of decimal to consider in your analysis so an infinitesmall number does not trigger similar problem - ('display.float_format', lambda x: '%.3f' % x).

2. Use df.round() to round the numbers so Panda drops the remaining digits from analysis. And most importantly,

3. Set NaN to zero df=df.fillna(0). Be careful if Filling NaN with zero does not apply to your data sets because this will treat the record as zero so N in the mean, std etc also changes.

To redirect:

function DeleteJob() {
    if (confirm("Do you really want to delete selected job/s?"))
        window.location.href = "your/url";
    else
        return false;
}

<div> looks nice, but a bit complicated in setting all these display: block, float: left... Maybe because the general idea behind <div> is a block of a paragraph size or more.

I have found the following nice way for spacing:

<button>Button 1></button>
<button style="margin-left: 4em">Button 2</button>

Of course it is right what you say at the beginning, and C logical operator && and || are what you usually use to "connect" conditions (expressions that can be evaluated as true or false); the comma operator is not a logical operator and its use in that example makes no sense, as explained by other users. You can use it e.g. to "concatenate" statements in the for itself: you can initialize and update j altogether with i; or use the comma operator in other ways

#include <stdio.h>

int main(void)  // as std wants
{
  int i, j;

  // init both i and j; condition, we suppose && is the "original"
  // intention; update i and j
  for(i=0, j=2; j>=0 && i<=5; i++, j--)
  {
       printf("%d ", i+j);
  }
  return 0;        
}

Try having this in your xml of Edit Text:

android:inputType="numberDecimal"

namedtuple is a factory function for making a tuple class. With that class we can create tuples that are callable by name also.

import collections

#Create a namedtuple class with names "a" "b" "c"
Row = collections.namedtuple("Row", ["a", "b", "c"])   

row = Row(a=1,b=2,c=3) #Make a namedtuple from the Row class we created

print row    #Prints: Row(a=1, b=2, c=3)
print row.a  #Prints: 1
print row[0] #Prints: 1

row = Row._make([2, 3, 4]) #Make a namedtuple from a list of values

print row   #Prints: Row(a=2, b=3, c=4)

You can use this extensions

public static class JsonExtensions
{
   public static T ToObject<T>(this string jsonText)
   {
       return JsonConvert.DeserializeObject<T>(jsonText);
   }

   public static string ToJson<T>(this T obj)
   {
       return JsonConvert.SerializeObject(obj);
   }
}

Well, you are not really providing enough details on your webapp but my guess is that you have a JSP with something like that:

<%@ page import="java.util.*,x.y.Z"%> 

And x.y.Z can't be found on the classpath (i.e. is not present under WEB-INF/classes nor in a JAR of WEB-INF/lib).

Double check that the WAR you deploy on Tomcat has the following structure:

my-webapp
|-- META-INF
|   `-- MANIFEST.MF
|-- WEB-INF
|   |-- classes
|   |   |-- x
|   |   |   `-- y
|   |   |       `-- Z.class
|   |   `-- another
|   |       `-- packagename
|   |           `-- AnotherClass.class
|   |-- lib
|   |   |-- ajar.jar
|   |   |-- bjar.jar
|   |   `-- zjar.jar
|   `-- web.xml
|-- a.jsp
|-- b.jsp
`-- index.jsp

Or that the JAR that bundles x.y.Z.class is present under WEB-INF/lib.

you can use process class it's very easy. use this namespace

using System.Diagnostics;

if you want to make a button to get active window.

private void button1_Click(object sender, EventArgs e)
    {            
       Process currentp = Process.GetCurrentProcess();
       TextBox1.Text = currentp.MainWindowTitle;  //this textbox will be filled with active window.
    }

You are calling nextElement twice. Refactor like this:

while(e.hasMoreElements()){


String param = (String) e.nextElement();
System.out.println(param);
}

Try:
//category[@name='Sport' and ./author/text()='James Small']

Default style you getting in res/value/style.xml like

  <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
  </style>

And just the below like in your activity tag,

android:theme="@style/AppTheme.NoActionBar"

You need to use brackets when using the fileExists step in an if condition or assign the returned value to a variable

Using variable:

def exists = fileExists 'file'

if (exists) {
    echo 'Yes'
} else {
    echo 'No'
}

Using brackets:

if (fileExists('file')) {
    echo 'Yes'
} else {
    echo 'No'
}

private dynamic defaultReminder = reminder.TimeSpanText[TimeSpan.FromMinutes(15)]; is a field initializer and executes first (before any field without an initializer is set to its default value and before the invoked instance constructor is executed). Instance fields that have no initializer will only have a legal (default) value after all instance field initializers are completed. Due to the initialization order, instance constructors are executed last, which is why the instance is not created yet the moment the initializers are executed. Therefore the compiler cannot allow any instance property (or field) to be referenced before the class instance is fully constructed. This is because any access to an instance variable like reminder implicitly references the instance (this) to tell the compiler the concrete memory location of the instance to use.

This is also the reason why this is not allowed in an instance field initializer.

A variable initializer for an instance field cannot reference the instance being created. Thus, it is a compile-time error to reference this in a variable initializer, as it is a compile-time error for a variable initializer to reference any instance member through a simple_name.

The only type members that are guaranteed to be initialized before instance field initializers are executed are class (static) field initializers and class (static) constructors and class methods. Since static members are instance independent, they can be referenced at any time:

class SomeOtherClass
{
  private static Reminders reminder = new Reminders();

  // This operation is allowed,
  // since the compiler can guarantee that the referenced class member is already initialized
  // when this instance field initializer executes
  private dynamic defaultReminder = reminder.TimeSpanText[TimeSpan.FromMinutes(15)];
}

That's why instance field initializers are only allowed to reference a class member (static member). This compiler initialization rules will ensure a deterministic type instantiation.

For more details I recommend this document: Microsoft Docs: Class declarations.

This means that an instance field that references another instance member to initialize its value, must be initialized from the instance constructor or the referenced member must be declared static.

if you're using reactive forms then you can use the following way. consider the following example.

in component.html

 `<p class="mr-3"> Require Shipping: 

          <input type="radio" class="ml-2" value="true" name="requiresShipping" 
           id="requiresShipping" formControlName="requiresShipping">

                   &nbsp;  Yes  &nbsp;

          <input type="radio" class="ml-2" value="false" name="requiresShipping" 
          id="requiresShipping" formControlName="requiresShipping">

                   &nbsp;  No   &nbsp;
 </p>`

in component.ts

`
 export class ClassName implements OnInit {
      public yourForm: FormGroup
      
      constructor(
            private fromBuilder: FormBuilder
      ) {
            this.yourForm= this.fromBuilder.group({
                  requiresShipping: this.fromBuilder.control('true'),
            })
        }
 }

`

now you will get the default selected radio button.

You should use .Load and not .LoadXML

MSDN Link

"The LoadXml method is for loading an XML string directly. You want to use the Load method instead."

ref : Link

Simply cast your timestamp AS DATE, like this:

SELECT CAST(tstamp AS DATE)

SQLFiddle Demo

In other words, your statement would look like this:

SELECT SUM(transaction_amount)
FROM mytable
WHERE Card_No='123'
  AND CAST(transaction_date AS DATE) = target_date

What is nice about CAST is that it works exactly the same on most SQL engines (SQL Server, PostgreSQL, MySQL), and is much easier to remember how to use it. Methods using CONVERT() or TO_DATE() are specific to each SQL engine and make your code non-portable.

ln -s . someProject

If you have someDirectory/someProjectDir and two files, file1.py and file2.py, and file1.py tries to import with this line

from someProjectDir import file2

It won't work, even if you have designated the someProjectDir as a source directory, and even if it shows in preferences, project, project structure menu as a content root. The only way it will work is by linking the project as show above (unix command, works in mac, not sure of use or syntax for Windows). There seems some mechanism where Pycharm does this automatically either in checkout from version control or adding as context root, since the soft link was created by Pycharm in a dependent project. Hence, just copying the same, although the weird replication of directory is annoying and necessity is perplexing. Also in the dependency where auto created, it doesn't show as new directory under version control. Perhaps comparison of .idea files will reveal more.

Since c++11 we could use list initialization:

char* c = new char[length]{};

For an aggregate type, then aggregate initialization will be performed, which has the same effect like char c[2] = {};.