Programs & Examples On #Recipe

With Bootstrap v4.0.0-alpha.6: Two <ul>s (.navbar-na), one with .mr-auto and one with .ml-auto:

<nav ...> 
  ...     
  <div class="collapse navbar-collapse">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Left Link </a>
      </li>
    </ul>
    <ul class="navbar-nav ml-auto">
      <li class="nav-item">
        <a class="nav-link" href="#">Right Link </a>
      </li>
    </ul>
  </div>
</nav>

I'm an early adopter and implemented a mid-large single page application using the Facebook Flux library.

As I'm a little late to the conversation I'll just point out that despite my best hopes Facebook seem to consider their Flux implementation to be a proof of concept and it has never received the attention it deserves.

I'd encourage you to play with it, as it exposes more of the inner working of the Flux architecture which is quite educational, but at the same time it does not provide many of the benefits that libraries like Redux provide (which aren't that important for small projects, but become very valuable for bigger ones).

We have decided that moving forward we will be moving to Redux and I suggest you do the same ;)

You need to run these commands in /var/www/html/ or any other directory that your project is on:

sudo chgrp -R GROUP ./
sudo chown -R USER:GROUP ./
find ./ -type d -exec chmod 755 -R {} \;
find ./ -type f -exec chmod 644 {} \;

In my case (apache web server) I use www-data for USER and GROUP

Seems the problem is with some services, like sidekiq. Running sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production outputs all the problems with config.

Here is a quick summary of the segues and an example for each type.

Show - Pushes the destination view controller onto the navigation stack, sliding overtop from right to left, providing a back button to return to the source - or if not embedded in a navigation controller it will be presented modally
Example: Navigating inboxes/folders in Mail

Show Detail - For use in a split view controller, replaces the detail/secondary view controller when in an expanded 2 column interface, otherwise if collapsed to 1 column it will push in a navigation controller
Example: In Messages, tapping a conversation will show the conversation details - replacing the view controller on the right when in a two column layout, or push the conversation when in a single column layout

Present Modally - Presents a view controller in various animated fashions as defined by the Presentation option, covering the previous view controller - most commonly used to present a view controller that animates up from the bottom and covers the entire screen on iPhone, or on iPad it's common to present it as a centered box that darkens the presenting view controller
Example: Selecting Touch ID & Passcode in Settings

Popover Presentation - When run on iPad, the destination appears in a popover, and tapping anywhere outside of this popover will dismiss it, or on iPhone popovers are supported as well but by default it will present the destination modally over the full screen
Example: Tapping the + button in Calendar

Custom - You may implement your own custom segue and have control over its behavior

The deprecated segues are essentially the non-adaptive equivalents of those described above. These segue types were deprecated in iOS 8: Push, Modal, Popover, Replace.

For more info, you may read over the Using Segues documentation which also explains the types of segues and how to use them in a Storyboard. Also check out Session 216 Building Adaptive Apps with UIKit from WWDC 2014. They talked about how you can build adaptive apps using these new Adaptive Segues, and they built a demo project that utilizes these segues.

class of my button is "input-addon btn btn-default fileinput-exists"

below code helped me

document.querySelector('.input-addon.btn.btn-default.fileinput-exists').click();

but I want to click second button, I have two buttons in my screen so I used querySelectorAll

var elem = document.querySelectorAll('.input-addon.btn.btn-default.fileinput-exists');
                elem[1].click();

here elem[1] is the second button object that I want to click.

You can use filters available in swift to filter content from an array instead of using a predicate like in Objective-C.

An example in Swift 4.0 is as follows:

var stringArray = ["foundation","coredata","coregraphics"]
stringArray = stringArray.filter { $0.contains("core") }

In the above example, since each element in the array is a string you can use the contains method to filter the array.

If the array contains custom objects, then the properties of that object can be used to filter the elements similarly.

The preprocessor is looking for StdCUtil/split.h in

• ./ (i.e. /root/Core/, the directory that contains the #include statement). So ./ + StdCUtil/split.h = ./StdCUtil/split.h and the file is missing

and in

• $INC_DIR (i.e. ../StdCUtil/ = /root/Core/../StdCUtil/ = /root/StdCUtil/). So ../StdCUtil/ + StdCUtil/split.h = ../StdCUtil/StdCUtil/split.h and the file is missing

You can fix the error changing the $INC_DIR variable (best solution):

$INC_DIR = ../

or the include directive:

#include "split.h"

but in this way you lost the "path syntax" that makes it very clear what namespace or module the header file belongs to.

Reference:

• C++ #include semantics

EDIT/UPDATE

It should also be

CXX = g++
CXXFLAGS = -c -Wall -I$(INC_DIR)

...

%.o: %.cpp $(DEPS)
    $(CXX) -o $@ $< $(CXXFLAGS)

This is derived from @fallino's answer, with some adjustments and simplifications by using the output format option for docker history. Since macOS and Gnu/Linux have different command-line utilities, a different version is necessary for Mac. If you only need one or the other, you can just use those lines.

#!/bin/bash
case "$OSTYPE" in
    linux*)
        docker history --no-trunc --format "{{.CreatedBy}}" $1 | # extract information from layers
        tac                                                    | # reverse the file
        sed 's,^\(|3.*\)\?/bin/\(ba\)\?sh -c,RUN,'             | # change /bin/(ba)?sh calls to RUN
        sed 's,^RUN #(nop) *,,'                                | # remove RUN #(nop) calls for ENV,LABEL...
        sed 's,  *&&  *, \\\n \&\& ,g'                           # pretty print multi command lines following Docker best practices
    ;;
    darwin*)
        docker history --no-trunc --format "{{.CreatedBy}}" $1 | # extract information from layers
        tail -r                                                | # reverse the file
        sed -E 's,^(\|3.*)?/bin/(ba)?sh -c,RUN,'               | # change /bin/(ba)?sh calls to RUN
        sed 's,^RUN #(nop) *,,'                                | # remove RUN #(nop) calls for ENV,LABEL...
        sed $'s,  *&&  *, \\\ \\\n \&\& ,g'                      # pretty print multi command lines following Docker best practices
    ;;
    *)
        echo "unknown OSTYPE: $OSTYPE"
    ;;
esac

Your footer element won't inherently be fixed to the bottom of your viewport unless you style it that way.
So if you happen to have a page that doesn't have enough content to push it all the way down it'll end up somewhere in the middle of the viewport; looking very awkward and not sure what to do with itself, like my first day of high school.

Positioning the element by declaring the fixed rule is great if you always want your footer visible regardless of initial page height - but then remember to set a bottom margin so that it doesn't overlay the last bit of content on that page. This becomes tricky if your footer has a dynamic height; which is often the case with responsive sites since it's in the nature of elements to stack.

You'll find a similar problem with absolute positioning. And although it does take the element in question out of the natural flow of the document, it still won't fix it to the bottom of the screen should you find yourself with a page that has little to no content to flesh it out.

Consider achieving this by:

1. Declaring a height value for the <body> & <html> tags
2. Declaring a minimum-height value to the nested wrapper element, usually the element which wraps all your descendant elements contained within the body structure (this wouldn't include your footer element)

Code Pen Example

$("#addBodyContent").on("click", function() {_x000D_
  $("<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>").appendTo(".flex-col:first-of-type");_x000D_
});_x000D_
_x000D_
$("#resetBodyContent").on("click", function() {_x000D_
  $(".flex-col p").remove();_x000D_
});_x000D_
_x000D_
$("#addFooterContent").on("click", function() {_x000D_
  $("<p>Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo.</p>").appendTo("footer");_x000D_
});_x000D_
_x000D_
$("#resetFooterContent").on("click", function() {_x000D_
  $("footer p").remove();_x000D_
});

html, body {_x000D_
    height: 91%;_x000D_
}_x000D_
_x000D_
.wrapper {_x000D_
    width: 100%;_x000D_
    left: 0;_x000D_
    right: 0;_x000D_
    box-sizing: border-box;_x000D_
    padding: 10px;_x000D_
    display: block;_x000D_
    min-height: 100%;_x000D_
}_x000D_
_x000D_
footer {_x000D_
    background: black;_x000D_
    text-align: center;_x000D_
    color: white;_x000D_
    box-sizing: border-box;_x000D_
    padding: 10px;_x000D_
}_x000D_
_x000D_
.flex {_x000D_
    display: flex;_x000D_
    height: 100%;_x000D_
}_x000D_
_x000D_
.flex-col {_x000D_
    flex: 1 1;_x000D_
    background: #ccc;_x000D_
    margin: 0px 10px;_x000D_
    box-sizing: border-box;_x000D_
    padding: 20px;_x000D_
}_x000D_
_x000D_
.flex-btn-wrapper {_x000D_
    display: flex;_x000D_
    justify-content: center;_x000D_
    flex-direction: row;_x000D_
}_x000D_
_x000D_
.btn {_x000D_
    box-sizing: border-box;_x000D_
    padding: 10px;_x000D_
    transition: .7s;_x000D_
    margin: 10px 10px;_x000D_
    min-width: 200px;_x000D_
}_x000D_
_x000D_
.btn:hover {_x000D_
    background: transparent;_x000D_
    cursor: pointer;_x000D_
}_x000D_
_x000D_
.dark {_x000D_
    background: black;_x000D_
    color: white;_x000D_
    border: 3px solid black;_x000D_
}_x000D_
_x000D_
.light {_x000D_
    background: white;_x000D_
    border: 3px solid white;_x000D_
}_x000D_
_x000D_
.light:hover {_x000D_
    color: white;_x000D_
}_x000D_
_x000D_
.dark:hover {_x000D_
    color: black;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="wrapper">_x000D_
    <div class="flex-btn-wrapper">_x000D_
        <button id="addBodyContent" class="dark btn">Add Content</button>_x000D_
        <button id="resetBodyContent" class="dark btn">Reset Content</button>_x000D_
    </div>_x000D_
    <div class="flex">_x000D_
    <div class="flex-col">_x000D_
      lorem ipsum dolor..._x000D_
    </div>_x000D_
    <div class="flex-col">_x000D_
      lorem ipsum dolor..._x000D_
    </div>_x000D_
    </div>_x000D_
    </div>_x000D_
<footer>_x000D_
    <div class="flex-btn-wrapper">_x000D_
        <button id="addFooterContent" class="light btn">Add Content</button>_x000D_
        <button id="resetFooterContent" class="light btn">Reset Content</button>_x000D_
    </div>_x000D_
    lorem ipsum dolor..._x000D_
</footer>

Use the method that accepts a Comparator when you want to sort in something other than natural order.

Collections.sort(List, Comparator)

I know the topic is old, but I just fell on it after a google search so... here is another solution:

$array_merged = array_merge($array_going_first, $array_going_second);

This one seems pretty clean to me, it works just fine!

All the answers that use tail -f are not pythonic.

Here is the pythonic way: ( using no external tool or library)

def follow(thefile):
     while True:
        line = thefile.readline()
        if not line or not line.endswith('\n'):
            time.sleep(0.1)
            continue
        yield line



if __name__ == '__main__':
    logfile = open("run/foo/access-log","r")
    loglines = follow(logfile)
    for line in loglines:
        print(line, end='')

For a bandpass filter, ws is a tuple containing the lower and upper corner frequencies. These represent the digital frequency where the filter response is 3 dB less than the passband.

wp is a tuple containing the stop band digital frequencies. They represent the location where the maximum attenuation begins.

gpass is the maximum attenutation in the passband in dB while gstop is the attentuation in the stopbands.

Say, for example, you wanted to design a filter for a sampling rate of 8000 samples/sec having corner frequencies of 300 and 3100 Hz. The Nyquist frequency is the sample rate divided by two, or in this example, 4000 Hz. The equivalent digital frequency is 1.0. The two corner frequencies are then 300/4000 and 3100/4000.

Now lets say you wanted the stopbands to be down 30 dB +/- 100 Hz from the corner frequencies. Thus, your stopbands would start at 200 and 3200 Hz resulting in the digital frequencies of 200/4000 and 3200/4000.

To create your filter, you'd call buttord as

fs = 8000.0
fso2 = fs/2
N,wn = scipy.signal.buttord(ws=[300/fso2,3100/fso2], wp=[200/fs02,3200/fs02],
   gpass=0.0, gstop=30.0)

The length of the resulting filter will be dependent upon the depth of the stop bands and the steepness of the response curve which is determined by the difference between the corner frequency and stopband frequency.

You see the two empty -D entries in the g++ command line? They're causing the problem. You must have values in the -D items e.g. -DWIN32

if you're insistent on using something like -D$(SYSTEM) -D$(ENVIRONMENT) then you can use something like:

SYSTEM ?= generic
ENVIRONMENT ?= generic

in the makefile which gives them default values.

Your output looks to be missing the all important output:

<command-line>:0:1: error: macro names must be identifiers
<command-line>:0:1: error: macro names must be identifiers

just to clarify, what actually got sent to g++ was -D -DWindows_NT, i.e. define a preprocessor macro called -DWindows_NT; which is of course not a valid identifier (similarly for -D -I.)

You can achieve this using a cursor but the performance is much slower than whileloop.. Here's the code:

set nocount on
declare cur cursor local fast_forward for
    (select filepath from Directory)
open cur;
declare @fullpath varchar(250);
declare @isExists int;

fetch from cur into @fullpath
while @@FETCH_STATUS = 0
    begin
        exec xp_fileexist @fullpath, @isExists out
        if @isExists = 1            
            print @fullpath + char(9) + char(9) + 'file exists'
        else            
            print @fullpath + char(9) + char(9) + 'file does not exists'
        fetch from cur into @fullpath
    end
close cur
deallocate cur

or you can put it in a tempTable if you want to integrate it in your frontend..

create proc GetFileStatus as
begin
    set nocount on
    create table #tempFileStatus(FilePath varchar(300),FileStatus varchar(30))
    declare cur cursor local fast_forward for
        (select filepath from Directory)
    open cur;
    declare @fullpath varchar(250);
    declare @isExists int;

    fetch from cur into @fullpath
    while @@FETCH_STATUS = 0
        begin
            exec xp_fileexist @fullpath, @isExists out
            if @isExists = 1                
                insert into #tempFileStatus values(@fullpath,'File exist')
            else
                insert into #tempFileStatus values(@fullpath,'File does not exists')
            fetch from cur into @fullpath
        end
    close cur
    deallocate cur
    select * from #tempFileStatus
    drop table #tempFileStatus
end

then call it using:

exec GetFileStatus

You could create a unique index with a coalesce on the MenuId:

CREATE UNIQUE INDEX
Favorites_UniqueFavorite ON Favorites
(UserId, COALESCE(MenuId, '00000000-0000-0000-0000-000000000000'), RecipeId);

You'd just need to pick a UUID for the COALESCE that will never occur in "real life". You'd probably never see a zero UUID in real life but you could add a CHECK constraint if you are paranoid (and since they really are out to get you...):

alter table Favorites
add constraint check
(MenuId <> '00000000-0000-0000-0000-000000000000')

If you pass a variable data (dictionary type) as context to a template, then you code should be:

{% for key, value in data.items %}
    <p>{{ key }} : {{ value }}</p> 
{% endfor %}

Quick answer: the FROM address must exactly match the account you are sending from, or you will get a error 5.7.1 Client does not have permissions to send as this sender.

My guess is that prevents email spoofing with your Office 365 account, otherwise you might be able to send as [email protected].

Another thing to try is in the authentication, fill in the third field with the domain, like

Dim smtpAuth = New System.Net.NetworkCredential(
    "TheDude", "hunter2password", "MicrosoftOffice365Domain.com")

If that doesn't work, double check that you can log into the account at: https://portal.microsoftonline.com

Yet another thing to note is your Antivirus solution may be blocking programmatic access to ports 25 and 587 as a anti-spamming solution. Norton and McAfee may silently block access to these ports. Only enabling Mail and Socket debugging will allow you to notice it (see below).

One last thing to note, the Send method is Asynchronous. If you call

Dispose

Detailed Answer: With Visual Studio (VB.NET or C# doesn't matter), I made a simple form with a button that created the Mail Message, similar to that above. Then I added this to the application.exe.config (in the bin/debug directory of my project). This enables the Output tab to have detailed debug info.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <system.diagnostics>
        <sources>
            <source name="System.Net">
                <listeners>
                    <add name="System.Net" />
                </listeners>
            </source>
            <source name="System.Net.Sockets">
                <listeners>
                    <add name="System.Net" />
                </listeners>
            </source>
        </sources>
        <switches>
            <add name="System.Net" value="Verbose" />
            <add name="System.Net.Sockets" value="Verbose" />
        </switches>
        <sharedListeners>
            <add name="System.Net"
              type="System.Diagnostics.TextWriterTraceListener"
              initializeData="System.Net.log"
            />
        </sharedListeners>
        <trace autoflush="true" />
    </system.diagnostics>
</configuration>

It happens when you don't properly close the code block:

if (condition){
  // your code goes here*
  { // This doesn't close the code block

Correct way:

if (condition){
  // your code goes here
} // Close the code block

Humm! did you try LOCK_TIMEOUT
Note down what it was orginally before running the query
set it for your query
after running your query set it back to original value

SET LOCK_TIMEOUT 1800;  
SELECT @@LOCK_TIMEOUT AS [Lock Timeout];  

I find this quite tricky, but there is some information on it here at the MatPlotLib FAQ. It is rather cumbersome, and requires finding out about what space individual elements (ticklabels) take up...

Update: The page states that the tight_layout() function is the easiest way to go, which attempts to automatically correct spacing.

Otherwise, it shows ways to acquire the sizes of various elements (eg. labels) so you can then correct the spacings/positions of your axes elements. Here is an example from the above FAQ page, which determines the width of a very wide y-axis label, and adjusts the axis width accordingly:

import matplotlib.pyplot as plt
import matplotlib.transforms as mtransforms
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot(range(10))
ax.set_yticks((2,5,7))
labels = ax.set_yticklabels(('really, really, really', 'long', 'labels'))

def on_draw(event):
   bboxes = []
   for label in labels:
       bbox = label.get_window_extent()
       # the figure transform goes from relative coords->pixels and we
       # want the inverse of that
       bboxi = bbox.inverse_transformed(fig.transFigure)
       bboxes.append(bboxi)

   # this is the bbox that bounds all the bboxes, again in relative
   # figure coords
   bbox = mtransforms.Bbox.union(bboxes)
   if fig.subplotpars.left < bbox.width:
       # we need to move it over
       fig.subplots_adjust(left=1.1*bbox.width) # pad a little
       fig.canvas.draw()
   return False

fig.canvas.mpl_connect('draw_event', on_draw)

plt.show()

There is a variation of private variables in the underscore convention.

In [5]: class Test(object):
   ...:     def __private_method(self):
   ...:         return "Boo"
   ...:     def public_method(self):
   ...:         return self.__private_method()
   ...:     

In [6]: x = Test()

In [7]: x.public_method()
Out[7]: 'Boo'

In [8]: x.__private_method()
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-8-fa17ce05d8bc> in <module>()
----> 1 x.__private_method()

AttributeError: 'Test' object has no attribute '__private_method'

There are some subtle differences, but for the sake of programming pattern ideological purity, its good enough.

There are examples out there of @private decorators that more closely implement the concept, but YMMV. Arguably one could also write a class defintion that uses meta

[Update]
I've just realized why you weren't receiving results back... you have a missing line in your Deserialize method. You were forgetting to assign the results to your obj :

public static T Deserialize<T>(string json)
{
    using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json)))
    {
        DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
        return (T)serializer.ReadObject(ms);
    } 
}

Also, just for reference, here is the Serialize method :

public static string Serialize<T>(T obj)
{
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
    using (MemoryStream ms = new MemoryStream())
    {
        serializer.WriteObject(ms, obj);
        return Encoding.Default.GetString(ms.ToArray());
    }
}

Edit

If you want to use Json.NET here are the equivalent Serialize/Deserialize methods to the code above..

Deserialize:

JsonConvert.DeserializeObject<T>(string json);

Serialize:

JsonConvert.SerializeObject(object o);

This are already part of Json.NET so you can just call them on the JsonConvert class.

Link: Serializing and Deserializing JSON with Json.NET

Now, the reason you're getting a StackOverflow is because of your Properties.

Take for example this one :

[DataMember]
public string unescapedUrl
{
    get { return unescapedUrl; } // <= this line is causing a Stack Overflow
    set { this.unescapedUrl = value; }
}

Notice that in the getter, you are returning the actual property (ie the property's getter is calling itself over and over again), and thus you are creating an infinite recursion.

Properties (in 2.0) should be defined like such :

string _unescapedUrl; // <= private field

[DataMember]
public string unescapedUrl
{
    get { return _unescapedUrl; } 
    set { _unescapedUrl = value; }
}

You have a private field and then you return the value of that field in the getter, and set the value of that field in the setter.

Btw, if you're using the 3.5 Framework, you can just do this and avoid the backing fields, and let the compiler take care of that :

public string unescapedUrl { get; set;}

Try enabling vertical mode, using \G to execute the query instead of ;:

mysql> SELECT * FROM sometable \G

Your results will be listed in the vertical mode, so each column value will be printed on a separate line. The output will be narrower but obviously much longer.

In Prolog (specifically, SWI-Prolog)

:- use_module(library(tabling)).

% path(+Graph,?Source,?Target,?Path)
:- table path/4.

path(_,N,N,[N]).
path(G,S,T,[S|Path]) :-
    dif(S,T),
    member(S-I, G), % directed graph
    path(G,I,T,Path).

test:

paths :- Graph =
    [ 1- 2  % node 1 and 2 are connected
    , 2- 3 
    , 2- 5 
    , 4- 2 
    , 5-11
    ,11-12
    , 6- 7 
    , 5- 6 
    , 3- 6 
    , 6- 8 
    , 8-10
    , 8- 9
    ],
    findall(Path, path(Graph,1,7,Path), Paths),
    maplist(writeln, Paths).

?- paths.
[1,2,3,6,7]
[1,2,5,6,7]
true.

Try this extension method to add the desired behaviour to any TextBox control. I havn't tested it extensively yet, but it seems to fulfil my needs.

public static class TextBoxExtensions
{
    public static void SetupSelectAllOnGotFocus(this TextBox source)
    {
        source.GotFocus += SelectAll;
        source.PreviewMouseLeftButtonDown += SelectivelyIgnoreMouseButton;
    }

    private static void SelectAll(object sender, RoutedEventArgs e)
    {
        var textBox = e.OriginalSource as TextBox;
        if (textBox != null)
            textBox.SelectAll();
    }

    private static void SelectivelyIgnoreMouseButton(object sender, MouseButtonEventArgs e)
    {
        var textBox = (sender as TextBox);
        if (textBox != null)
        {
            if (!textBox.IsKeyboardFocusWithin)
            {
                e.Handled = true;
                textBox.Focus();
            }
        }
    }
}

80% of the time, when folks say "daemon", they only want a server. Since the question is perfectly unclear on this point, it's hard to say what the possible domain of answers could be. Since a server is adequate, start there. If an actual "daemon" is actually needed (this is rare), read up on nohup as a way to daemonize a server.

Until such time as an actual daemon is actually required, just write a simple server.

Also look at the WSGI reference implementation.

Also look at the Simple HTTP Server.

"Are there any additional things that need to be considered? " Yes. About a million things. What protocol? How many requests? How long to service each request? How frequently will they arrive? Will you use a dedicated process? Threads? Subprocesses? Writing a daemon is a big job.

Only for Linux: One-liner for the RAM usage with only stdlib dependency:

import os
tot_m, used_m, free_m = map(int, os.popen('free -t -m').readlines()[-1].split()[1:])

edit: specified solution OS dependency

slate is a project that makes it very simple to use PDFMiner from a library:

>>> with open('example.pdf') as f:
...    doc = slate.PDF(f)
...
>>> doc
[..., ..., ...]
>>> doc[1]
'Text from page 2...'   

Required namespace : using System.Linq;

Dictionary<string, int> counts = new Dictionary<string, int>();
counts.Add("one", 1);
counts.Add("four", 4);
counts.Add("two", 2);
counts.Add("three", 3);

Order by desc :

foreach (KeyValuePair<string, int> kvp in counts.OrderByDescending(key => key.Value))
{
// some processing logic for each item if you want.
}

Order by Asc :

foreach (KeyValuePair<string, int> kvp in counts.OrderBy(key => key.Value))
{
// some processing logic for each item if you want.
}

(function ($) {
  $.fn.inputFilter = function (inputFilter) {
    return this.on('input keydown keyup mousedown mouseup select contextmenu drop', function () {
      if (inputFilter(this.value)) {
        this.oldValue = this.value;
        this.oldSelectionStart = this.selectionStart;
        this.oldSelectionEnd = this.selectionEnd;
      } else if (this.hasOwnProperty('oldValue')) {
        this.value = this.oldValue;
        //this.setSelectionRange(this.oldSelectionStart, this.oldSelectionEnd);
      } else {
        this.value = '';
      }
    });
  };
})(jQuery);

$('.positive_int').inputFilter(function (value) {
  return /^\d*[.]?\d{0,2}$/.test(value);
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="number" class="positive_int"/>

Above code works fine for all !!! And it will also prevent inserting more than 2 decimal points. And if you don't need this just remove\d{0,2} or if need more limited decimal point just change number 2

I'm not sure what you're trying to achieve, but you may want to consider using jQuery, which allows you to put your code in the head tag or a separate script file and still have the code executed after the DOM has loaded.

You can then do something like:

$(document).ready(function() {
$(document).remove();
});

as well as selectively removing elements (all DIVs, only DIVs with certain classes, etc.)

Shell have no built-in map like data structure, I use raw string to describe items like that:

ARRAY=(
    "item_A|attr1|attr2|attr3"
    "item_B|attr1|attr2|attr3"
    "..."
)

when extract items and its attributes:

for item in "${ARRAY[@]}"
do
    item_name=$(echo "${item}"|awk -F "|" '{print $1}')
    item_attr1=$(echo "${item}"|awk -F "|" '{print $2}')
    item_attr2=$(echo "${item}"|awk -F "|" '{print $3}')

    echo "${item_name}"
    echo "${item_attr1}"
    echo "${item_attr2}"
done

This seems like not clever than other people's answer, but easy to understand for new people to shell.

Try the :lt selector: http://docs.jquery.com/Selectors/lt#index

$('a:lt(20)');

anytree

I recommend https://pypi.python.org/pypi/anytree

Example

from anytree import Node, RenderTree

udo = Node("Udo")
marc = Node("Marc", parent=udo)
lian = Node("Lian", parent=marc)
dan = Node("Dan", parent=udo)
jet = Node("Jet", parent=dan)
jan = Node("Jan", parent=dan)
joe = Node("Joe", parent=dan)

print(udo)
Node('/Udo')
print(joe)
Node('/Udo/Dan/Joe')

for pre, fill, node in RenderTree(udo):
    print("%s%s" % (pre, node.name))
Udo
+-- Marc
¦   +-- Lian
+-- Dan
    +-- Jet
    +-- Jan
    +-- Joe

print(dan.children)
(Node('/Udo/Dan/Jet'), Node('/Udo/Dan/Jan'), Node('/Udo/Dan/Joe'))

Features

anytree has also a powerful API with:

• simple tree creation
• simple tree modification
• pre-order tree iteration
• post-order tree iteration
• resolve relative and absolute node paths
• walking from one node to an other.
• tree rendering (see example above)
• node attach/detach hookups

In a private project a wrote this filter

angular.module('myApp')
    .filter('isEmpty', function () {
        var bar;
        return function (obj) {
            for (bar in obj) {
                if (obj.hasOwnProperty(bar)) {
                    return false;
                }
            }
            return true;
        };
    });

usage:

<p ng-hide="items | isEmpty">Some Content</p>

testing:

describe('Filter: isEmpty', function () {

    // load the filter's module
    beforeEach(module('myApp'));

    // initialize a new instance of the filter before each test
    var isEmpty;
    beforeEach(inject(function ($filter) {
        isEmpty = $filter('isEmpty');
    }));

    it('should return the input prefixed with "isEmpty filter:"', function () {
          expect(isEmpty({})).toBe(true);
          expect(isEmpty({foo: "bar"})).toBe(false);
    });

});

regards.

1. fs.readdir(path, callback)
2. fs.rename(old,new,callback)

Go through http://nodejs.org/api/fs.html

One important thing - you can use sync functions also. (It will work like C program)

I would have done it like this. Short and sweet :)

Sub test()
Dim rngToSearch As Range
Dim FirstBlankCell As Range
Dim firstEmptyRow As Long

Set rngToSearch = Sheet1.Range("A:A")
    'Check first cell isn't empty
    If IsEmpty(rngToSearch.Cells(1, 1)) Then
        firstEmptyRow = rngToSearch.Cells(1, 1).Row
    Else
        Set FirstBlankCell = rngToSearch.FindNext(After:=rngToSearch.Cells(1, 1))
        If Not FirstBlankCell Is Nothing Then
            firstEmptyRow = FirstBlankCell.Row
        Else
            'no empty cell in range searched
        End If
    End If
End Sub

Updated to check if first row is empty.

Edit: Update to include check if entire row is empty

Option Explicit

Sub test()
Dim rngToSearch As Range
Dim firstblankrownumber As Long

    Set rngToSearch = Sheet1.Range("A1:C200")
    firstblankrownumber = FirstBlankRow(rngToSearch)
    Debug.Print firstblankrownumber

End Sub

Function FirstBlankRow(ByVal rngToSearch As Range, Optional activeCell As Range) As Long
Dim FirstBlankCell As Range

    If activeCell Is Nothing Then Set activeCell = rngToSearch.Cells(1, 1)
    'Check first cell isn't empty
    If WorksheetFunction.CountA(rngToSearch.Cells(1, 1).EntireRow) = 0 Then
        FirstBlankRow = rngToSearch.Cells(1, 1).Row
    Else

        Set FirstBlankCell = rngToSearch.FindNext(After:=activeCell)
        If Not FirstBlankCell Is Nothing Then

            If WorksheetFunction.CountA(FirstBlankCell.EntireRow) = 0 Then
                FirstBlankRow = FirstBlankCell.Row
            Else
                Set activeCell = FirstBlankCell
                FirstBlankRow = FirstBlankRow(rngToSearch, activeCell)

            End If
        Else
            'no empty cell in range searched
        End If
    End If
End Function

If you want to display at row=159220

row=159220

#To display in a table format
display(res.loc[row:row])
display(res.iloc[row:row+1])

#To display in print format
display(res.loc[row])
display(res.iloc[row])

>>> x = 'lipsum'
>>> x.replace(x[:3], '')
'sum'

I too felt like the accepted answer was a bit misleading as it could lead to a user inadvertently deleting multiple Projects. It is not accurate to state that the words Repository, Project and Directory are ambiguous within the context of SVN. They have specific meanings, even if the system itself doesn't enforce those meanings. The community and more importantly the SVN Clients have an agreed upon understanding of these terms which allow them to Tag, Branch and Merge.

Ideally this will help clear any confusion. As someone that has had to go from git to svn for a few projects, it can be frustrating until you learn that SVN branching and SVN projects are really talking about folder structures.

SVN Terminology

Repository

The database of commits and history for your folders and files. A repository can contain multiple 'projects' or no projects.

Project

A specific SVN folder structure which enables SVN tools to perform tagging, merging and branching. SVN does not inherently support branching. Branching was added later and is a result of a special folder structure as follows:

• /project
  • /tags
  • /branches
  • /trunk

Note: Remember, an SVN 'Project' is a term used to define a specific folder strcuture within a Repository

Projects in a Repository

Repository Layout

• http://svn.server.local/svn/myrepo

  • /skunkworks "Project" due to layout
    • /tags
    • /branches
    • /trunk
  • /app1 "Project" due to layout
    • /tags
    • /branches
    • /trunk
  • /fooproject "Project" due to layout
    • /tags
    • /branches
    • /trunk
  • /regulardir <-- Not a "Project"
    • /subdir

• http://svn.server.local/svn/myrepo2

  • /app2"Project" due to layout
    • /tags
    • /branches
    • /trunk

As a repository is just a database of the files and directory commits, it can host multiple projects. When discussing Repositories and Projects be sure the correct term is being used.

Removing a Repository could mean removing multiple Projects!

Local SVN Directory (.svn directory at root)

When using a URL commits occur automatically.

• svn co http://svn.server.local/svn/myrepo

• cd myrepo

• Remove a Project: svn rm skunkworks + svn commit

• Remove a Directory: svn rm regulardir/subdir + svn commit
• Remove a Project (Without Checking Out): svn rm http://svn.server.local/svn/myrepo/app1
• Remove a Directory (Without Checking Out): svn rm http://svn.server.local/svn/myrepo/regulardir

Because an SVN Project is really a specific directory structure, removing a project is the same as removing a directory.

SVN Repository Management

There are several SVN servers available to host your repositories. The management of repositories themselves are typically done through the admin consoles of the servers. For example, Visual SVN allows you to create Repositories (databases), directories and Projects. But you cannot remove files, manage commits, rename folders, etc. from within the server console as those are SVN specific tasks. The SVN server typically manages the creation of a repository. Once a repository has been created and you have a new URL, the rest of your work is done through the svn command.

os.makedirs is what you need. For chmod or chown you'll have to use os.walk and use it on every file/dir yourself.

I would recommend using CSS for this. You should create a CSS rule to enforce the centering, for example:

.ui-helper-center {
    text-align: center;
}

And then add the ui-helper-center class to the table cells for which you wish to control the alignment:

<td class="ui-helper-center">Content</td>

EDIT: Since this answer was accepted, I felt obligated to edit out the parts that caused a flame-war in the comments, and to not promote poor and outdated practices.

See Gabe's answer for how to include the CSS rule into your page.

For the sake of completeness, first make sure you have the correct import so you can use the addRow function:

import javax.swing.table.*;

Assuming your jTable is already created, you can proceed and create your own add row method which will accept the parameters that you need:

public void yourAddRow(String str1, String str2, String str3){
  DefaultTableModel yourModel = (DefaultTableModel) yourJTable.getModel();
  yourModel.addRow(new Object[]{str1, str2, str3});
}

Actually, after waiting some time it eventually goes beyond that step. Even with --verbose, you won't have any information that it computes anything, but it does.

Patience is the key :)

PS : For anyone that cancelled at that step, if you try to reinstall the android-sdk package, it will complain that Error: No such file or directory - /usr/local/share/android-sdk. You can just touch /usr/local/share/android-sdk to get rid of that error and go on with the reinstall.

Usually for similar tasks - I created layer-list drawable like this one:

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
        <solid android:color="@color/underlineColor"/>
        </shape>
    </item>
<item android:bottom="3dp">
    <shape android:shape="rectangle">
        <solid android:color="@color/buttonColor"/>
    </shape>
</item>

The idea is that first you draw the rectangle with underlineColor and then on top of this one you draw another rectangle with the actual buttonColor but applying bottomPadding. It always works.

But when I needed to have buttonColor to be transparent I couldn't use the above drawable. I found one more solution

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape android:shape="rectangle">
        <solid android:color="@android:color/transparent"/>
    </shape>
</item>

<item android:drawable="@drawable/white_box" android:gravity="bottom"     android:height="2dp"/>
</layer-list>

(as you can see here the mainButtonColor is transparent and white_box is just a simple rectangle drawable with white Solid)

This article helped me alot figuring out why it wasn't working for me either. It give me a lesson to think of the webpage loading and how angular 2 interacts as a timeline and not just the point in time i'm thinking of. I didn't see anyone else mention this point, so I will...

The reason the *ngIf is needed because it will try to check the length of that variable before the rest of the OnInit stuff happens, and throw the "length undefined" error. So thats why you add the ? because it won't exist yet, but it will soon.

I had a user control which sat on page in a free form way, not constrained by another container, and the contents within the user control would not auto size but expand to the full size of what the user control was handed.

To get the user control to simply size to its content, for height only, I placed it into a grid with on row set to auto size such as this:

<Grid Margin="0,60,10,200">
    <Grid.RowDefinitions>
        <RowDefinition Height="Auto" />
    </Grid.RowDefinitions>
    <controls1:HelpPanel x:Name="HelpInfoPanel"
                         Visibility="Visible"
                         Width="570"
                         HorizontalAlignment="Right"
                         ItemsSource="{Binding HelpItems}"
                         Background="#FF313131" />
</Grid>

One possible solution would to use regex.

'phone' => 'required|regex:/(01)[0-9]{9}/'

This will check the input starts with 01 and is followed by 9 numbers. By using regex you don't need the numeric or size validation rules.

If you want to reuse this validation method else where, it would be a good idea to create your own validation rule for validating phone numbers.

Docs: Custom Validation

In your AppServiceProvider's boot method:

Validator::extend('phone_number', function($attribute, $value, $parameters)
{
    return substr($value, 0, 2) == '01';
});

This will allow you to use the phone_number validation rule anywhere in your application, so your form validation could be:

'phone' => 'required|numeric|phone_number|size:11'

In your validator extension you could also check if the $value is numeric and 11 characters long.

Jon has the right answer and this works in my angular 5 and 6 projects.

If I wanted to click to smoothly scroll from navbar to footer:

<button (click)="scrollTo('.footer')">ScrolltoFooter</button>
<footer class="footer">some code</footer>

scrollTo(className: string):void {
   const elementList = document.querySelectorAll('.' + className);
   const element = elementList[0] as HTMLElement;
   element.scrollIntoView({ behavior: 'smooth' });
}

Because I wanted to scroll back to the header from the footer, I created a service that this function is located in and injected it into the navbar and footer components and passed in 'header' or 'footer' where needed. just remember to actually give the component declarations the class names used:

<app-footer class="footer"></app-footer>

An abstract method is a method signature declaration with no body. For instance:

public abstract class Shape {
    . . .

    public abstract double getArea();
    public abstract double getPerimeter();
}

The methods getArea() and getPerimeter() are abstract. Because the Shape class has an abstract method, it must be declared abstract as well. A class may also be declared abstract without any abstract methods. When a class is abstract, an instance of it cannot be created; one can only create instances of (concrete) subclasses. A concrete class is a class that is not declared abstract (and therefore has no abstract methods and implements all inherited abstract methods). For instance:

public class Circle extends Shape {
    public double radius;
    . . .

    public double getArea() {
        return Math.PI * radius * radius;
    }

    public double getPerimeter() {
        return 2.0 * Math.PI * radius;
    }
}

There are many reasons to do this. One would be to write a method that would be the same for all shapes but that depends on shape-specific behavior that is unknown at the Shape level. For instance, one could write the method:

public abstract class Shape {
    . . .

    public void printArea(PrintStream out) {
        out.println("The area is " + getArea());
    }
}

Admittedly, this is a contrived example, but it shows the basic idea: define concrete behavior in terms of unspecified behavior.

Another reason for having an abstract class is so you can partially implement an interface. All methods declared in an interface are inherited as abstract methods by any class that implements the interface. Sometimes you want to provide a partial implementation of an interface in a class and leave the details to subclasses; the partial implementation must be declared abstract.

For some time now I've been thinking about near-compile-time constraints, so this is a perfect opportunity to launch the concept.

The basic idea is that if you cannot do a check compile time, you should do it at the earliest possible point in time, which is basically the moment the application starts. If all checks are okay, the application will run; if a check fails, the application will fail instantly.

Behavior

The best possible outcome is that our program doesn't compile if the constraints are not met. Unfortunately that's not possible in the current C# implementation.

Next best thing is that the program crashes the moment it's started.

The last option is that the program will crash the moment the code is hit. This is the default behavior of .NET. For me, this is completely unacceptable.

Prerequirements

We need to have a constraint mechanism, so for the lack of anything better... let's use an attribute. The attribute will be present on top of a generic constraint to check if it matches our conditions. If it doesn't, we give an ugly error.

This enables us to do things like this in our code:

public class Clas<[IsInterface] T> where T : class

(I've kept the where T:class here, because I always prefer compile-time checks to run-time checks)

So, that only leaves us with 1 problem, which is checking if all the types that we use match the constraint. How hard can it be?

Let's break it up

Generic types are always either on a class (/struct/interface) or on a method.

Triggering a constraint requires you to do one of the following things:

1. Compile-time, when using a type in a type (inheritance, generic constraint, class member)
2. Compile-time, when using a type in a method body
3. Run-time, when using reflection to construct something based on the generic base class.
4. Run-time, when using reflection to construct something based on RTTI.

At this point, I would like to state that you should always avoid doing (4) in any program IMO. Regardless, these checks won't support it, since it would effectively mean solving the halting problem.

Case 1: using a type

Example:

public class TestClass : SomeClass<IMyInterface> { ... } 

Example 2:

public class TestClass 
{ 
    SomeClass<IMyInterface> myMember; // or a property, method, etc.
} 

Basically this involves scanning all types, inheritance, members, parameters, etc, etc, etc. If a type is a generic type and has a constraint, we check the constraint; if it's an array, we check the element type.

At this point I must add that this will break the fact that by default .NET loads types 'lazy'. By scanning all the types, we force the .NET runtime to load them all. For most programs this shouldn't be a problem; still, if you use static initializers in your code, you might encounter problems with this approach... That said, I wouldn't advice anyone to do this anyways (except for things like this :-), so it shouldn't give you a lot of problems.

Case 2: using a type in a method

Example:

void Test() {
    new SomeClass<ISomeInterface>();
}

To check this we have only 1 option: decompile the class, check all member tokens that are used and if one of them is the generic type - check the arguments.

Case 3: Reflection, runtime generic construction

Example:

typeof(CtorTest<>).MakeGenericType(typeof(IMyInterface))

I suppose it's theoretically possible to check this with similar tricks as case (2), but the implementation of it is much harder (you need to check if MakeGenericType is called in some code path). I won't go into details here...

Case 4: Reflection, runtime RTTI

Example:

Type t = Type.GetType("CtorTest`1[IMyInterface]");

This is the worst case scenario and as I explained before generally a bad idea IMHO. Either way, there's no practical way to figure this out using checks.

Testing the lot

Creating a program that tests case (1) and (2) will result in something like this:

[AttributeUsage(AttributeTargets.GenericParameter)]
public class IsInterface : ConstraintAttribute
{
    public override bool Check(Type genericType)
    {
        return genericType.IsInterface;
    }

    public override string ToString()
    {
        return "Generic type is not an interface";
    }
}

public abstract class ConstraintAttribute : Attribute
{
    public ConstraintAttribute() {}

    public abstract bool Check(Type generic);
}

internal class BigEndianByteReader
{
    public BigEndianByteReader(byte[] data)
    {
        this.data = data;
        this.position = 0;
    }

    private byte[] data;
    private int position;

    public int Position
    {
        get { return position; }
    }

    public bool Eof
    {
        get { return position >= data.Length; }
    }

    public sbyte ReadSByte()
    {
        return (sbyte)data[position++];
    }

    public byte ReadByte()
    {
        return (byte)data[position++];
    }

    public int ReadInt16()
    {
        return ((data[position++] | (data[position++] << 8)));
    }

    public ushort ReadUInt16()
    {
        return (ushort)((data[position++] | (data[position++] << 8)));
    }

    public int ReadInt32()
    {
        return (((data[position++] | (data[position++] << 8)) | (data[position++] << 0x10)) | (data[position++] << 0x18));
    }

    public ulong ReadInt64()
    {
        return (ulong)(((data[position++] | (data[position++] << 8)) | (data[position++] << 0x10)) | (data[position++] << 0x18) | 
                        (data[position++] << 0x20) | (data[position++] << 0x28) | (data[position++] << 0x30) | (data[position++] << 0x38));
    }

    public double ReadDouble()
    {
        var result = BitConverter.ToDouble(data, position);
        position += 8;
        return result;
    }

    public float ReadSingle()
    {
        var result = BitConverter.ToSingle(data, position);
        position += 4;
        return result;
    }
}

internal class ILDecompiler
{
    static ILDecompiler()
    {
        // Initialize our cheat tables
        singleByteOpcodes = new OpCode[0x100];
        multiByteOpcodes = new OpCode[0x100];

        FieldInfo[] infoArray1 = typeof(OpCodes).GetFields();
        for (int num1 = 0; num1 < infoArray1.Length; num1++)
        {
            FieldInfo info1 = infoArray1[num1];
            if (info1.FieldType == typeof(OpCode))
            {
                OpCode code1 = (OpCode)info1.GetValue(null);
                ushort num2 = (ushort)code1.Value;
                if (num2 < 0x100)
                {
                    singleByteOpcodes[(int)num2] = code1;
                }
                else
                {
                    if ((num2 & 0xff00) != 0xfe00)
                    {
                        throw new Exception("Invalid opcode: " + num2.ToString());
                    }
                    multiByteOpcodes[num2 & 0xff] = code1;
                }
            }
        }
    }

    private ILDecompiler() { }

    private static OpCode[] singleByteOpcodes;
    private static OpCode[] multiByteOpcodes;

    public static IEnumerable<ILInstruction> Decompile(MethodBase mi, byte[] ildata)
    {
        Module module = mi.Module;

        BigEndianByteReader reader = new BigEndianByteReader(ildata);
        while (!reader.Eof)
        {
            OpCode code = OpCodes.Nop;

            int offset = reader.Position;
            ushort b = reader.ReadByte();
            if (b != 0xfe)
            {
                code = singleByteOpcodes[b];
            }
            else
            {
                b = reader.ReadByte();
                code = multiByteOpcodes[b];
                b |= (ushort)(0xfe00);
            }

            object operand = null;
            switch (code.OperandType)
            {
                case OperandType.InlineBrTarget:
                    operand = reader.ReadInt32() + reader.Position;
                    break;
                case OperandType.InlineField:
                    if (mi is ConstructorInfo)
                    {
                        operand = module.ResolveField(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), Type.EmptyTypes);
                    }
                    else
                    {
                        operand = module.ResolveField(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), mi.GetGenericArguments());
                    }
                    break;
                case OperandType.InlineI:
                    operand = reader.ReadInt32();
                    break;
                case OperandType.InlineI8:
                    operand = reader.ReadInt64();
                    break;
                case OperandType.InlineMethod:
                    try
                    {
                        if (mi is ConstructorInfo)
                        {
                            operand = module.ResolveMember(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), Type.EmptyTypes);
                        }
                        else
                        {
                            operand = module.ResolveMember(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), mi.GetGenericArguments());
                        }
                    }
                    catch
                    {
                        operand = null;
                    }
                    break;
                case OperandType.InlineNone:
                    break;
                case OperandType.InlineR:
                    operand = reader.ReadDouble();
                    break;
                case OperandType.InlineSig:
                    operand = module.ResolveSignature(reader.ReadInt32());
                    break;
                case OperandType.InlineString:
                    operand = module.ResolveString(reader.ReadInt32());
                    break;
                case OperandType.InlineSwitch:
                    int count = reader.ReadInt32();
                    int[] targetOffsets = new int[count];
                    for (int i = 0; i < count; ++i)
                    {
                        targetOffsets[i] = reader.ReadInt32();
                    }
                    int pos = reader.Position;
                    for (int i = 0; i < count; ++i)
                    {
                        targetOffsets[i] += pos;
                    }
                    operand = targetOffsets;
                    break;
                case OperandType.InlineTok:
                case OperandType.InlineType:
                    try
                    {
                        if (mi is ConstructorInfo)
                        {
                            operand = module.ResolveMember(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), Type.EmptyTypes);
                        }
                        else
                        {
                            operand = module.ResolveMember(reader.ReadInt32(), mi.DeclaringType.GetGenericArguments(), mi.GetGenericArguments());
                        }
                    }
                    catch
                    {
                        operand = null;
                    }
                    break;
                case OperandType.InlineVar:
                    operand = reader.ReadUInt16();
                    break;
                case OperandType.ShortInlineBrTarget:
                    operand = reader.ReadSByte() + reader.Position;
                    break;
                case OperandType.ShortInlineI:
                    operand = reader.ReadSByte();
                    break;
                case OperandType.ShortInlineR:
                    operand = reader.ReadSingle();
                    break;
                case OperandType.ShortInlineVar:
                    operand = reader.ReadByte();
                    break;

                default:
                    throw new Exception("Unknown instruction operand; cannot continue. Operand type: " + code.OperandType);
            }

            yield return new ILInstruction(offset, code, operand);
        }
    }
}

public class ILInstruction
{
    public ILInstruction(int offset, OpCode code, object operand)
    {
        this.Offset = offset;
        this.Code = code;
        this.Operand = operand;
    }

    public int Offset { get; private set; }
    public OpCode Code { get; private set; }
    public object Operand { get; private set; }
}

public class IncorrectConstraintException : Exception
{
    public IncorrectConstraintException(string msg, params object[] arg) : base(string.Format(msg, arg)) { }
}

public class ConstraintFailedException : Exception
{
    public ConstraintFailedException(string msg) : base(msg) { }
    public ConstraintFailedException(string msg, params object[] arg) : base(string.Format(msg, arg)) { }
}

public class NCTChecks
{
    public NCTChecks(Type startpoint)
        : this(startpoint.Assembly)
    { }

    public NCTChecks(params Assembly[] ass)
    {
        foreach (var assembly in ass)
        {
            assemblies.Add(assembly);

            foreach (var type in assembly.GetTypes())
            {
                EnsureType(type);
            }
        }

        while (typesToCheck.Count > 0)
        {
            var t = typesToCheck.Pop();
            GatherTypesFrom(t);

            PerformRuntimeCheck(t);
        }
    }

    private HashSet<Assembly> assemblies = new HashSet<Assembly>();

    private Stack<Type> typesToCheck = new Stack<Type>();
    private HashSet<Type> typesKnown = new HashSet<Type>();

    private void EnsureType(Type t)
    {
        // Don't check for assembly here; we can pass f.ex. System.Lazy<Our.T<MyClass>>
        if (t != null && !t.IsGenericTypeDefinition && typesKnown.Add(t))
        {
            typesToCheck.Push(t);

            if (t.IsGenericType)
            {
                foreach (var par in t.GetGenericArguments())
                {
                    EnsureType(par);
                }
            }

            if (t.IsArray)
            {
                EnsureType(t.GetElementType());
            }
        }

    }

    private void PerformRuntimeCheck(Type t)
    {
        if (t.IsGenericType && !t.IsGenericTypeDefinition)
        {
            // Only check the assemblies we explicitly asked for:
            if (this.assemblies.Contains(t.Assembly))
            {
                // Gather the generics data:
                var def = t.GetGenericTypeDefinition();
                var par = def.GetGenericArguments();
                var args = t.GetGenericArguments();

                // Perform checks:
                for (int i = 0; i < args.Length; ++i)
                {
                    foreach (var check in par[i].GetCustomAttributes(typeof(ConstraintAttribute), true).Cast<ConstraintAttribute>())
                    {
                        if (!check.Check(args[i]))
                        {
                            string error = "Runtime type check failed for type " + t.ToString() + ": " + check.ToString();

                            Debugger.Break();
                            throw new ConstraintFailedException(error);
                        }
                    }
                }
            }
        }
    }

    // Phase 1: all types that are referenced in some way
    private void GatherTypesFrom(Type t)
    {
        EnsureType(t.BaseType);

        foreach (var intf in t.GetInterfaces())
        {
            EnsureType(intf);
        }

        foreach (var nested in t.GetNestedTypes())
        {
            EnsureType(nested);
        }

        var all = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance;
        foreach (var field in t.GetFields(all))
        {
            EnsureType(field.FieldType);
        }
        foreach (var property in t.GetProperties(all))
        {
            EnsureType(property.PropertyType);
        }
        foreach (var evt in t.GetEvents(all))
        {
            EnsureType(evt.EventHandlerType);
        }
        foreach (var ctor in t.GetConstructors(all))
        {
            foreach (var par in ctor.GetParameters())
            {
                EnsureType(par.ParameterType);
            }

            // Phase 2: all types that are used in a body
            GatherTypesFrom(ctor);
        }
        foreach (var method in t.GetMethods(all))
        {
            if (method.ReturnType != typeof(void))
            {
                EnsureType(method.ReturnType);
            }

            foreach (var par in method.GetParameters())
            {
                EnsureType(par.ParameterType);
            }

            // Phase 2: all types that are used in a body
            GatherTypesFrom(method);
        }
    }

    private void GatherTypesFrom(MethodBase method)
    {
        if (this.assemblies.Contains(method.DeclaringType.Assembly)) // only consider methods we've build ourselves
        {
            MethodBody methodBody = method.GetMethodBody();
            if (methodBody != null)
            {
                // Handle local variables
                foreach (var local in methodBody.LocalVariables)
                {
                    EnsureType(local.LocalType);
                }

                // Handle method body
                var il = methodBody.GetILAsByteArray();
                if (il != null)
                {
                    foreach (var oper in ILDecompiler.Decompile(method, il))
                    {
                        if (oper.Operand is MemberInfo)
                        {
                            foreach (var type in HandleMember((MemberInfo)oper.Operand))
                            {
                                EnsureType(type);
                            }

                        }
                    }
                }
            }
        }
    }

    private static IEnumerable<Type> HandleMember(MemberInfo info)
    {
        // Event, Field, Method, Constructor or Property.
        yield return info.DeclaringType;
        if (info is EventInfo)
        {
            yield return ((EventInfo)info).EventHandlerType;
        }
        else if (info is FieldInfo)
        {
            yield return ((FieldInfo)info).FieldType;
        }
        else if (info is PropertyInfo)
        {
            yield return ((PropertyInfo)info).PropertyType;
        }
        else if (info is ConstructorInfo)
        {
            foreach (var par in ((ConstructorInfo)info).GetParameters())
            {
                yield return par.ParameterType;
            }
        }
        else if (info is MethodInfo)
        {
            foreach (var par in ((MethodInfo)info).GetParameters())
            {
                yield return par.ParameterType;
            }
        }
        else if (info is Type)
        {
            yield return (Type)info;
        }
        else
        {
            throw new NotSupportedException("Incorrect unsupported member type: " + info.GetType().Name);
        }
    }
}

Using the code

Well, that's the easy part :-)

// Create something illegal
public class Bar2 : IMyInterface
{
    public void Execute()
    {
        throw new NotImplementedException();
    }
}

// Our fancy check
public class Foo<[IsInterface] T>
{
}

class Program
{
    static Program()
    {
        // Perform all runtime checks
        new NCTChecks(typeof(Program));
    }

    static void Main(string[] args)
    {
        // Normal operation
        Console.WriteLine("Foo");
        Console.ReadLine();
    }
}

It for example happens in this case here:

void initializeJSP(unknownType Experiment);

Try using std::string instead of just string (and include the <string> header). C++ Standard library classes are within the namespace std::.

This is a good case for using another thread:

// Call some method
this.Method();

Task.Factory.StartNew(() =>
{
    Thread.Sleep(20000);

    // Do things here.
    // NOTE: You may need to invoke this to your main thread depending on what you're doing
});

The above code expects .NET 4.0 or above, otherwise try:

ThreadPool.QueueUserWorkItem(new WaitCallback(delegate
{
    Thread.Sleep(20000);

    // Do things here
}));

In EF Core you can enter the command Remove-Migration in the package manager console after you've added your erroneous migration.

The console suggests you do so if your migration could involve a loss of data:

An operation was scaffolded that may result in the loss of data. Please review the migration for accuracy. To undo this action, use Remove-Migration.

Create Table as select (CTAS) is possible in Hive.

You can try out below command:

CREATE TABLE new_test 
    row format delimited 
    fields terminated by '|' 
    STORED AS RCFile 
AS select * from source where col=1

1. Target cannot be partitioned table.
2. Target cannot be external table.
3. It copies the structure as well as the data

Create table like is also possible in Hive.

1. It just copies the source table definition.

In my case, previously I use idea to generate entity by database schema, and the persistence.xml is automatically generated in src/main/java/META-INF,and according to https://stackoverflow.com/a/23890419/10701129, I move it to src/main/resources/META-INF, also marked META-INF as source root. It works for me.

But just simply marking original META-INF(that is, src/main/java/META-INF) as source root, doesn't work, which confuses me.

and this is the structre:

Use:

git reset --mixed

instead of git reset --hard. You will not lose any changes.

To get or set an attribute of an HTML element, you can use the element.attr() function in jQuery.

To get the href attribute, use the following code:

var a_href = $('selector').attr('href');

To set the href attribute, use the following code:

$('selector').attr('href','http://example.com');

In both cases, please use the appropriate selector. If you have set the class for the anchor element, use '.class-name' and if you have set the id for the anchor element, use '#element-id'.

In Linux every process has its own folder in /proc. So you could use getpid() to get the pid of the running process and then join it with the path /proc to get the folder you hopefully need.

Here's a short example in Python:

import os
print os.path.join('/proc', str(os.getpid()))

Here's the example in ANSI C as well:

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>


int
main(int argc, char **argv)
{
    pid_t pid = getpid();

    fprintf(stdout, "Path to current process: '/proc/%d/'\n", (int)pid);

    return EXIT_SUCCESS;
}

Compile it with:

gcc -Wall -Werror -g -ansi -pedantic process_path.c -oprocess_path 

The following is something I used that worked for me across browsers so I hope it helps someone in the future:

#contentblock th:first-child {
    -moz-border-radius: 6px 0 0 0;
    -webkit-border-radius: 6px 0 0 0;
    border-radius: 6px 0 0 0;
    behavior: url(/images/border-radius.htc);
    border-radius: 6px 0 0 0;
}

#contentblock th:last-child {
    -moz-border-radius: 0 6px 0 0;
    -webkit-border-radius: 0 6px 0 0;
    border-radius: 0 6px 0 0;
    behavior: url(/images/border-radius.htc);
    border-radius: 0 6px 0 0;
}
#contentblock tr:last-child td:last-child {
     border-radius: 0 0 6px 0;
    -moz-border-radius: 0 0 6px 0;
    -webkit-border-radius: 0 0 6px 0;
    behavior: url(/images/border-radius.htc);
    border-radius: 0 0 6px 0;
 }

#contentblock tr:last-child td:first-child {
    -moz-border-radius: 0 0 0 6px;
    -webkit-border-radius: 0 0 0 6px;
    border-radius: 0 0 0 6px;
    behavior: url(/images/border-radius.htc);
    border-radius: 0 0 0 6px;
}

Obviously the #contentblock portion can be replaced/edited as needed and you can find the border-radius.htc file by doing a search in Google or your favorite web browser.

Have you tried plugin called " Youtube Live Stream Auto Embed"

Its seems to be working. Check it once.

I run an SP to DROP the table(s) and then use a DTS package to import the most recent production table(s) onto my development box. Then I go home and come back the following morning. It's not elegant; but it works for me.

I use it and I'm happy with it, as I have to type much less to make a new header. It worked fine for me in three platforms: Windows, Mac and Linux.

I don't have any performance information but I believe that the difference between #pragma and the include guard will be nothing comparing to the slowness of parsing the C++ grammar. That's the real problem. Try to compile the same number of files and lines with a C# compiler for example, to see the difference.

In the end, using the guard or the pragma, won't matter at all.

No, there is no better way; yours is canonical.

I'll offer an oddball alternative. Sometimes it's easier to use different encoding, especially if you're dealing with a variety of systems that don't all handle the details of URL encoding the same way. This isn't the most mainstream approach but can come in handy in certain situations.

Rather than URL-encoding the data, you can base64-encode it. The benefit of this is the encoded data is very generic, consisting only of alpha characters and sometimes trailing ='s. Example:

JSON array-of-strings:

["option", "Fred's dog", "Bill & Trudy", "param=3"]

That data, URL-encoded as the data param:

"data=%5B%27option%27%2C+%22Fred%27s+dog%22%2C+%27Bill+%26+Trudy%27%2C+%27param%3D3%27%5D"

Same, base64-encoded:

"data=WyJvcHRpb24iLCAiRnJlZCdzIGRvZyIsICJCaWxsICYgVHJ1ZHkiLCAicGFyYW09MyJd"

The base64 approach can be a bit shorter, but more importantly it's simpler. I often have problems moving URL-encoded data between cURL, web browsers and other clients, usually due to quotes, embedded % signs and so on. Base64 is very neutral because it doesn't use special characters.

You should do:

#include<iostream>
using namespace std;
int main ()
{

    int sum = 0;
    int number;
    int numberitems;


    cout << "Enter number of items: \n";
    cin >> numberitems;

    for(int i=0;i<numberitems;i++)
    {
        cout << "Enter number <<i<<":" \n";
        cin >> number; sum+=number;
    }
    cout<<"sum is: "<< sum<<endl;
}

And with a while statement

#include <iostream>
using namespace std;
int main ()
{
    int sum = 0;
    int number;
    int numberitems;
    cin>>numberitems;

    cout << "Enter number: \n";

    while (count <=numberitems)
    {
        cin >> number;
        sum+=number;
    }
    cout << sum << endl;
}

You might need to set GEM_HOME for the cleanup to work. You can check what paths exist for gemfiles by running:

gem env

Take note of the GEM PATHS section.

In my case, for example, with gems installed in my user home:

export GEM_HOME="~/.gem/ruby/2.4.0"
gem cleanup

public class TypedProperty<T> : Property
{
    public T TypedValue
    {
        get { return (T)(object)base.Value; }
        set { base.Value = value.ToString();}
    }
}

I using converting via an object. It is a little bit simpler.

It does work indeed. Issue was with my less compiler. It was compiled in to:

.container {
  min-height: calc(-51vh);
}

Fixed with the following code in less file:

.container {
  min-height: calc(~"100vh - 150px");
}

Thanks to this link: Less Aggressive Compilation with CSS3 calc

You can't resize background images with CSS2.

What you can do is have a container that resizes:

<div style='position:absolute;z-index:0;left:0;top:0;width:100%;height:100%'>
  <img src='whatever.jpg' style='width:100%;height:100%' alt='[]' />
</div>

This way, the div will sit behind the page and take up the whole space, while resizing as needed. The img inside will automatically resize to fit the div.

Mysql

SHOW COLUMNS FROM a_table_named_users WHERE Field REGEXP 'user_id|user_name|user_pass'

This will return a result something like this:

Field     |  Type        |   Null   |   Key   |   Default   |   Extra  
user_id      int(8)          NO         PRI       NULL          auto_increment
user_name    varchar(64)     NO         MUL       NULL
user_pass    varchar(64)     NO                   NULL

Then to pull out the values you can simply

fetch row[0]

This is also great for passing input dynamically since the REGEXP needs the '|' for multiple inputs, but is also a way to keeps data separated and easy to store/pass to classes/functions.

Try throwing in dummy data as well for security when sending it out and compare what was returned when receiving any errors.

Java documentation for java.net.BindExcpetion,

Signals that an error occurred while attempting to bind a socket to a local address and port. Typically, the port is in use, or the requested local address could not be assigned.

Cause:

The error is due to the second condition mentioned above. When you start a server(Tomcat,Jetty etc) it listens to a port and bind a socket to an address and port. In Windows and Linux the hostname is resolved to IP address from /etc/hosts This host to IP address mapping file can be found at C:\Windows\System32\Drivers\etc\hosts. If this mapping is changed and the host name cannot be resolved to the IP address you get the error message.

Solution:

Edit the hosts file and correct the mapping for hostname and IP using admin privileges.

eg:

#127.0.0.1 localhost
192.168.52.1 localhost

Read more: java.net.BindException : cannot assign requested address.

It looks easier for me to clear all TabPages add add those wished:

PropertyTabControl.TabPages.Clear();
        PropertyTabControl.TabPages.Add(AspectTabPage);
        PropertyTabControl.TabPages.Add(WerkstattTabPage);

or

PropertyTabControl.TabPages.Clear();
        PropertyTabControl.TabPages.Add(TerminTabPage);

Use Window.location.href to take the url in javascript. it's a property that will tell you the current URL location of the browser. Setting the property to something different will redirect the page.

if (window.location.href.indexOf("?added-to-cart=555") > -1) {
    alert("found it");
}

for (int i = 0; i < nodeList.getLength(); i++)

change to

for (int i = 0, len = nodeList.getLength(); i < len; i++)

to be more efficient.

The second way of javanna answer may be the best as it tends to use a flatter, predictable memory model.

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

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

Here's the code:

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

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

The problem is that the CASE statement won't work in the way you're trying to use it. You can only use it to switch the value of one field in a query. If I understand what you're trying to do, you might need this:

SELECT 
   ActivityID,
   FieldName = CASE 
                  WHEN ActivityTypeID <> 2 THEN
                      (Some Aggregate Sub Query)
                  ELSE
                     (Some Aggregate Sub Query with diff result)
               END,
   FieldName2 = CASE
                  WHEN ActivityTypeID <> 2 THEN
                      (Some Aggregate Sub Query)
                  ELSE
                     (Some Aggregate Sub Query with diff result)
               END

It's possible to decide which reactor projects to build by specifying the -pl command line argument:

$ mvn --help
[...]
 -pl,--projects <arg>                   Build specified reactor projects
                                        instead of all projects
[...]

It accepts a comma separated list of parameters in one of the following forms:

• relative path of the folder containing the POM
• [groupId]:artifactId

Thus, given the following structure:

project-root [com.mycorp:parent]
  |
  + --- server [com.mycorp:server]
  |       |
  |       + --- orm [com.mycorp.server:orm]
  |
  + --- client [com.mycorp:client]

You can specify the following command line:

mvn -pl .,server,:client,com.mycorp.server:orm clean install

to build everything. Remove elements in the list to build only the modules you please.

EDIT: as blackbuild pointed out, as of Maven 3.2.1 you have a new -el flag that excludes projects from the reactor, similarly to what -pl does:

If you get this error in a context of creating ForeignKey relations between models. Example below raises AppRegistryNotReady: Models aren't loaded yet error.

from my_app.models import Workspace

workspace = models.ForeignKey(Workspace)

Then please try to reffer to a model as a string.

from my_app.models import Workspace

# One of these two lines might fix the problem.
workspace = models.ForeignKey('Workspace')
workspace = models.ForeignKey('my_app.Workspace')

The above answers may help you but you may also want to know how to use array of function pointers.

void fun1()
{

}

void fun2()
{

}

void fun3()
{

}

void (*func_ptr[3])() = {fun1, fun2, fun3};

main()
{
    int option;


    printf("\nEnter function number you want");
    printf("\nYou should not enter other than 0 , 1, 2"); /* because we have only 3 functions */
    scanf("%d",&option);

    if((option>=0)&&(option<=2))
    { 
        (*func_ptr[option])();
    }

    return 0;
}

You can only assign the addresses of functions with the same return type and same argument types and no of arguments to a single function pointer array.

You can also pass arguments like below if all the above functions are having the same number of arguments of same type.

  (*func_ptr[option])(argu1);

Note: here in the array the numbering of the function pointers will be starting from 0 same as in general arrays. So in above example fun1 can be called if option=0, fun2 can be called if option=1 and fun3 can be called if option=2.

Use sequences in postgres for id columns:

INSERT mytable(myid) VALUES (nextval('MySequence'));

SELECT currval('MySequence');

currval will return the current value of the sequence in the same session.

(In MS SQL, you would use @@identity or SCOPE_IDENTITY())

Is very simple, this is the way I use:

JQuery:

$(document).on('change', '[name="nameOfCheckboxes[]"]', function() {
    var checkbox = $(this), // Selected or current checkbox
        value = checkbox.val(); // Value of checkbox

    if (checkbox.is(':checked'))
    {
        console.log('checked');
    }else
    {
        console.log('not checked');
    }
});

Regards!

It is possible and is deceptively easy:

1. "Publish" the application (to, say, some folder on drive C), either from menu Build or from the project's properties ? Publish. This will create an installer for a ClickOnce application.
2. But instead of using the produced installer, find the produced files (the EXE file and the .config, .manifest, and .application files, along with any DLL files, etc.) - they are all in the same folder and typically in the bin\Debug folder below the project file (.csproj).
3. Zip that folder (leave out any *.vhost.* files and the app.publish folder (they are not needed), and the .pdb files unless you foresee debugging directly on your user's system (for example, by remote control)), and provide it to the users.

An added advantage is that, as a ClickOnce application, it does not require administrative privileges to run (if your application follows the normal guidelines for which folders to use for application data, etc.).

As for .NET, you can check for the minimum required version of .NET being installed (or at all) in the application (most users will already have it installed) and present a dialog with a link to the download page on the Microsoft website (or point to one of your pages that could redirect to the Microsoft page - this makes it more robust if the Microsoft URL change). As it is a small utility, you could target .NET 2.0 to reduce the probability of a user to have to install .NET.

It works. We use this method during development and test to avoid having to constantly uninstall and install the application and still being quite close to how the final application will run.

This is round robin DNS. This is a quite simple solution for load balancing. Usually DNS servers rotate/shuffle the DNS records for each incoming DNS request. Unfortunately it's not a real solution for fail-over. If one of the servers fail, some visitors will still be directed to this failed server.

With credits to previous answer https://stackoverflow.com/a/36549068/7149454

Boostrap compatible, adust your container width (300px in this example) and you're good to go:

<div class="embed-responsive embed-responsive-16by9" style="height: 100 %; width: 300px; ">
<iframe class="embed-responsive-item" src="https://www.youtube.com/embed/LbLB0K-mXMU?start=1841" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0"></iframe>
</div>

From android API Level 19, when I want to instance JSONArray object I put JSONObject directly as parameter like below:

JSONArray jsonArray=new JSONArray(jsonObject);

JSONArray has constructor to accept object.

/usr/local/tomcat6/bin/catalina.sh version

Working with Angular 7 I needed to create a file upload with a description of the file.

HTML:

<div>
File Description: <input type="text" (change)="updateFileDescription($event.target.value)" #fileDescription />
</div>

<div>
<input type="file" accept="*" capture (change)="handleFileInput($event.target.files)" #fileInput /> <button class="btn btn-light" (click)="uploadFileToActivity()">Upload</button>
</div>

Here is the Component file

  @ViewChild('fileDescription') fileDescriptionInput: ElementRef;
  @ViewChild('fileInput') fileInput: ElementRef;

ClearInputs(){
        this.fileDescriptionInput.nativeElement.value = '';
        this.fileInput.nativeElement.value = '';
}

This will do the trick.

You could prepare the query for inserting one row using the mysqli_stmt class, and then iterate over the array of data. Something like:

$stmt =  $db->stmt_init();
$stmt->prepare("INSERT INTO mytbl (fld1, fld2, fld3, fld4) VALUES(?, ?, ?, ?)");
foreach($myarray as $row)
{
    $stmt->bind_param('idsb', $row['fld1'], $row['fld2'], $row['fld3'], $row['fld4']);
    $stmt->execute();
}
$stmt->close();

Where 'idsb' are the types of the data you're binding (int, double, string, blob).

If anyone using MS SQL Server 2008 and higher lands on this question: SQL Server 2008 and higher has a new "hierarchyId" feature designed specifically for this task.

More info at https://docs.microsoft.com/en-us/sql/relational-databases/hierarchical-data-sql-server

Here is an example of getting the bounds using svg.getBox(): https://gist.github.com/john-doherty/2ad94360771902b16f459f590b833d44

At the end you get numbers that you can plug into the svg to set the viewbox properly. Then use any css on the parent div and you're done.

 // get all SVG objects in the DOM
 var svgs = document.getElementsByTagName("svg");
 var svg = svgs[0],
    box = svg.getBBox(), // <- get the visual boundary required to view all children
    viewBox = [box.x, box.y, box.width, box.height].join(" ");

    // set viewable area based on value above
    svg.setAttribute("viewBox", viewBox);

it is different for different icons.(eg, diff sizes for action bar icons, laucnher icons, etc.) please follow this link icons handbook to learn more.

SELECT *
FROM   TableName
WHERE  columnNAme IS NULL OR 
       LTRIM(RTRIM(columnName)) = ''

try this code for all element which have blue border problem

*{
outline: none;
}

or

*{
outline-style: none;
}

Even if it could seems an easy fix, i solved it updating my iphone' s ios version. EDIT because of downvote: all answers i have seen talk only about xcode update. It was strange because of my old ios version was ios 13.3.3 and it worked on another iphone with ios 13.6. After updating to ios 13.7 it worked.

It is “old-fashioned” way to specify ranges of revisions you wish to merge. With 1.5+ you can use:

svn merge HEAD url/of/trunk path/to/branch/wc

I try to figure out how to get a better result with pure JS and i get something this:

DEMO: https://jsfiddle.net/f5r3emjt/1/

const tbody = document.getElementById("tbody");
let rowSelected;

tbody.onclick = (e) => {
  for (let i = 0; i < e.path.length; ++i) {
    if (e.path[i].tagName == "TR") {
      selectRow(e.path[i]);
      break;
    }
  }
};

function selectRow(r) {
  if (rowSelected !== undefined) rowSelected.style.backgroundColor = "white";

  rowSelected = r;
  rowSelected.style.backgroundColor = "dodgerblue";
}

And now you can use the variable rowSelected in other function like you want or call another function after set the style

I don't agree with the statement about [...] HTTP referrer leakage (an external image in the target page might leak the password) in Slough's response.

The HTTP 1.1 RFC explicitly states:

Clients SHOULD NOT include a Referer header field in a (non-secure) HTTP request if the referring page was transferred with a secure protocol.

Anyway, server logs and browser history are more than sufficient reasons not to put sensitive data in the query string.

Class WebMvcConfigurerAdapter is deprecated as of 5.0 WebMvcConfigurer has default methods and can be implemented directly without the need for this adapter. For this case:

@Configuration
@EnableWebMvc
public class WebMvcConfig implements WebMvcConfigurer {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**").allowedOrigins("http://localhost:3000");
    }
}

See also: Same-Site flag for session cookie

create another class and increase the with size with 2px example

.enquiry_fld_normal{
width:278px !important; 
}

.enquiry_fld_normal_select{
width:280px !important; 
 }

.row {
    margin-right: 15px;
}

throw this in your CSS

Also doesn't work with

<TextBlock><TextBlock.Text>NO USING ABOVE TECHNIQUE HERE</TextBlock.Text>

No big deal, just needed to use

<TextBlock Text="Cool &#x0a;Newline trick" />

instead.

You will figure out that setOnPageChangeListener is deprecated, use addOnPageChangeListener, as below:

ViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
       if(position == 1){  // if you want the second page, for example
           //Your code here
       }
    }

    @Override
    public void onPageScrollStateChanged(int state) {

    }
});

I know this question is too old, but still, I think this approach would be cleaner:

cat = $.URLDecode(cat);
$('#cbCategory option:contains("' + cat + '")').prop('selected', true);

In this case you wont need to go over the entire options with each(). Although by that time prop() didn't exist so for older versions of jQuery use attr().

UPDATE

You have to be certain when using contains because you can find multiple options, in case of the string inside cat matches a substring of a different option than the one you intend to match.

Then you should use:

cat = $.URLDecode(cat);
$('#cbCategory option')
    .filter(function(index) { return $(this).text() === cat; })
    .prop('selected', true);

I know this question is old, but I will just like to add my voice here. I believe it is a good idea to leave the knowledge of whether or not a link is active to the controller of the view.

I would just set a unique value for each view in the controller action. For instance, if I wanted to make the home page link active, I would do something like this:

public ActionResult Index()
{            
    ViewBag.Title = "Home";
    ViewBag.Home = "class = active";
    return View();
}

Then in my view, I will write something like this:

<li @ViewBag.Home>@Html.ActionLink("Home", "Index", "Home", null, new { title = "Go home" })</li>

When you navigate to a different page, say Programs, ViewBag.Home does not exist (instead ViewBag.Programs does); therefore, nothing is rendered, not even class="". I think this is cleaner both for maintainability and cleanliness. I tend to always want to leave logic out of the view as much as I can.

If you want to use bootstrap dropdowns, I will recommend this for angular2:

ngx-dropdown

With ES6: This is now part of the language:

function myFunc(a, b = 0) {
   // function body
}

Please keep in mind that ES6 checks the values against undefined and not against truthy-ness (so only real undefined values get the default value - falsy values like null will not default).

With ES5:

function myFunc(a,b) {
  b = b || 0;

  // b will be set either to b or to 0.
}

This works as long as all values you explicitly pass in are truthy. Values that are not truthy as per MiniGod's comment: null, undefined, 0, false, ''

It's pretty common to see JavaScript libraries to do a bunch of checks on optional inputs before the function actually starts.

I like the simplicity of tabulary package:

\usepackage{tabulary}
...
\begin{tabulary}{\linewidth}{LCL}
    \hline
    Short sentences      & \#  & Long sentences                                                 \\
    \hline
    This is short.       & 173 & This is much loooooooonger, because there are many more words.  \\
    This is not shorter. & 317 & This is still loooooooonger, because there are many more words. \\
    \hline
\end{tabulary} 

In the example, you arrange the whole width of the table with respect to \textwidth. E.g 0.4 of it. Then the rest is automatically done by the package.

Most of the example is taken from http://en.wikibooks.org/wiki/LaTeX/Tables .

Easy if you are using phpMyAdmin.

Just uncheck Enable foreign key checks option under SQL tab and run TRUNCATE <TABLE_NAME>

Coobird's answer is the correct, complete one. However, I combined his hints with those from another site to create code that works in my app (iOS/Objective-C), which I wanted to share with anyone who comes here looking for such a thing. Please, if you like/up-vote this answer, do the same for the originals; all I did was "stand on the shoulders of giants."

As for sort-order, my technique is a modified painter's algorithm: each object has (a) an altitude of the base (I call "level") and (b) an X/Y for the "base" or "foot" of the image (examples: avatar's base is at his feet; tree's base is at it's roots; airplane's base is center-image, etc.) Then I just sort lowest to highest level, then lowest (highest on-screen) to highest base-Y, then lowest (left-most) to highest base-X. This renders the tiles the way one would expect.

Code to convert screen (point) to tile (cell) and back:

typedef struct ASIntCell {  // like CGPoint, but with int-s vice float-s
    int x;
    int y;
} ASIntCell;

// Cell-math helper here:
//      http://gamedevelopment.tutsplus.com/tutorials/creating-isometric-worlds-a-primer-for-game-developers--gamedev-6511
// Although we had to rotate the coordinates because...
// X increases NE (not SE)
// Y increases SE (not SW)
+ (ASIntCell) cellForPoint: (CGPoint) point
{
    const float halfHeight = rfcRowHeight / 2.;

    ASIntCell cell;
    cell.x = ((point.x / rfcColWidth) - ((point.y - halfHeight) / rfcRowHeight));
    cell.y = ((point.x / rfcColWidth) + ((point.y + halfHeight) / rfcRowHeight));

    return cell;
}


// Cell-math helper here:
//      http://stackoverflow.com/questions/892811/drawing-isometric-game-worlds/893063
// X increases NE,
// Y increases SE
+ (CGPoint) centerForCell: (ASIntCell) cell
{
    CGPoint result;

    result.x = (cell.x * rfcColWidth  / 2) + (cell.y * rfcColWidth  / 2);
    result.y = (cell.y * rfcRowHeight / 2) - (cell.x * rfcRowHeight / 2);

    return result;
}

If you're using bootstrap 3 date time picker, try this:

$('.selector').datetimepicker({ maxDate: $.now() });

Javascript is a class-less languages: there are no classes that defines the behaviour of a class statically as in Java. JavaScript uses prototypes instead of classes for defining object properties, including methods, and inheritance. It is possible to simulate many class-based features with prototypes in JavaScript.

Selection Sort:

Given a list, take the current element and exchange it with the smallest element on the right hand side of the current element.

Insertion Sort:

Given a list, take the current element and insert it at the appropriate position of the list, adjusting the list every time you insert. It is similar to arranging the cards in a Card game.

Time Complexity of selection sort is always n(n - 1)/2, whereas insertion sort has better time complexity as its worst case complexity is n(n - 1)/2. Generally it will take lesser or equal comparisons then n(n - 1)/2.

Source: http://cheetahonfire.blogspot.com/2009/05/selection-sort-vs-insertion-sort.html

For fields where NULL is acceptable, you could use var_export($var, true) to output the string, integer, or NULL literal. Note that you would not surround the output with quotes because they will be automatically added or omitted.

For example:

mysql_query("insert into table2 (f1, f2) values ('{$row['string_field']}', ".var_export($row['null_field'], true).")");

Here I found some simplest solution to sort the python dict by key using pprint. eg.

>>> x = {'a': 10, 'cd': 20, 'b': 30, 'az': 99} 
>>> print x
{'a': 10, 'b': 30, 'az': 99, 'cd': 20}

but while using pprint it will return sorted dict

>>> import pprint 
>>> pprint.pprint(x)
{'a': 10, 'az': 99, 'b': 30, 'cd': 20}

If number is your form element, then its length will be undefined since elements don't have length. You want

if (number.value.length != 10) { ... }

An easier way to do all the validation at once, though, would be with a regex:

var val = number.value
if (/^\d{10}$/.test(val)) {
    // value is ok, use it
} else {
    alert("Invalid number; must be ten digits")
    number.focus()
    return false
}

\d means "digit," and {10} means "ten times." The ^ and $ anchor it to the start and end, so something like asdf1234567890asdf does not match.

Javadoc to the rescue :

A Scanner breaks its input into tokens using a delimiter pattern, which by default matches whitespace

nextLine is probably the method you should use.

You can't close sockets without shutting down the process that owns those sockets. Sockets are owned by the process that opened them. So to find out the process ID (PID) for Unix/Linux. Use netstat like so:

netstat -a -n -p -l

That will print something like:

Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address               Foreign Address             State     PID/Program name   
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN     1879/sendmail: acce 
tcp        0      0 0.0.0.0:21                  0.0.0.0:*                   LISTEN     1860/xinetd         

Where -a prints all sockets, -n shows the port number, -p shows the PID, -l shows only what's listening (this is optional depending on what you're after).

The real info you want is PID. Now we can shutdown that process by doing:

kill 1879

If you are shutting down a service it's better to use:

service sendmail stop

Kill literally kills just that process and any children it owns. Using the service command runs the shutdown script registered in the init.d directory. If you use kill on a service it might not properly start back up because you didn't shut it down properly. It just depends on the service.

Unfortunately, Mac is different from Linux/Unix in this respect. You can't use netstat. Read this tutorial if you're interested in Mac:

http://www.tech-recipes.com/rx/227/find-out-which-process-is-holding-which-socket-open/

And if you're on Windows use TaskManager to kill processes, and services UI to shutdown services. You can use netstat on Windows just like Linux/Unix to identify the PID.

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/netstat.mspx?mfr=true

An example,

 d <- data.frame(x1=rnorm(10),
                 x2=rnorm(10),
                 x3=rnorm(10))
cor(d) # get correlations (returns matrix)

Specify the ax argument to matplotlib.pyplot.colorbar(), e.g.

import numpy as np
import matplotlib.pyplot as plt

fig, ax = plt.subplots(2, 2)
for i in range(2):
    for j in range(2):
         data = np.array([[i, j], [i+0.5, j+0.5]])
         im = ax[i, j].imshow(data)
         plt.colorbar(im, ax=ax[i, j])

plt.show()

According to the .NET user guide:

Download the .NET client library:

Add these using statements:

using Google.GData.Client;
using Google.GData.Extensions;
using Google.GData.Spreadsheets;

Authenticate:

SpreadsheetsService myService = new SpreadsheetsService("exampleCo-exampleApp-1");
myService.setUserCredentials("[email protected]", "mypassword");

Get a list of spreadsheets:

SpreadsheetQuery query = new SpreadsheetQuery();
SpreadsheetFeed feed = myService.Query(query);

Console.WriteLine("Your spreadsheets: ");
foreach (SpreadsheetEntry entry in feed.Entries)
{
    Console.WriteLine(entry.Title.Text);
}

Given a SpreadsheetEntry you've already retrieved, you can get a list of all worksheets in this spreadsheet as follows:

AtomLink link = entry.Links.FindService(GDataSpreadsheetsNameTable.WorksheetRel, null);

WorksheetQuery query = new WorksheetQuery(link.HRef.ToString());
WorksheetFeed feed = service.Query(query);

foreach (WorksheetEntry worksheet in feed.Entries)
{
    Console.WriteLine(worksheet.Title.Text);
}

And get a cell based feed:

AtomLink cellFeedLink = worksheetentry.Links.FindService(GDataSpreadsheetsNameTable.CellRel, null);

CellQuery query = new CellQuery(cellFeedLink.HRef.ToString());
CellFeed feed = service.Query(query);

Console.WriteLine("Cells in this worksheet:");
foreach (CellEntry curCell in feed.Entries)
{
    Console.WriteLine("Row {0}, column {1}: {2}", curCell.Cell.Row,
        curCell.Cell.Column, curCell.Cell.Value);
}

Here are couple more free tools that can be used for this. Both work as SSMS addins.

ApexSQL Search – 100% free - searches both schema and data in tables. Has couple more useful options such as dependency tracking…

SSMS Tools pack – free for all versions except SQL 2012 – doesn’t look as advanced as previous one but has a lot of other cool features.

<script>
if($(window).width() >= 1200){
    (function($) {
        var element = $('.to_move_content'),
            originalY = element.offset().top;

        // Space between element and top of screen (when scrolling)
        var topMargin = 10;

        // Should probably be set in CSS; but here just for emphasis
        element.css('position', 'relative');

        $(window).on('scroll', function(event) {
            var scrollTop = $(window).scrollTop();

            element.stop(false, false).animate({
                top: scrollTop < originalY
                    ? 0
                    : scrollTop - originalY + topMargin
            }, 0);
        });
    })(jQuery);
}

Try this ! just add class .to_move_content to you div

In response to

Don't hardcode /sdcard/

Sometimes we HAVE TO hardcode it as in some phone models the API method returns the internal phone memory.

Known types: HTC One X and Samsung S3.

Environment.getExternalStorageDirectory().getAbsolutePath() gives a different path - Android

Icon creation wizard

• Select your project
• Ctrl+n
• Android Icon Set

simple way for make notifications

 NotificationCompat.Builder builder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
            .setSmallIcon(R.mipmap.ic_launcher) //icon
            .setContentTitle("Test") //tittle
            .setAutoCancel(true)//swipe for delete
            .setContentText("Hello Hello"); //content
    NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(1, builder.build()
    );

I don't think there is any easy way to get only HTTP headers. You have to iterate through request.META dict to get what all you need.

django-debug-toolbar takes the same approach to show header information. Have a look at this file responsible for retrieving header information.

You can get the total number of rows containing a specific name using:

SELECT COUNT(*) FROM tbl_foo WHERE name = 'sarmen'

Given the count, you can now get the nth row using:

SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT (n - 1), 1

Where 1 <= n <= COUNT(*) from the first query.

Example:

getting the 3rd row

SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT 2, 1

Some people say "always use IList<T> instead of List<T>".
They want you to change your method signatures from void Foo(List<T> input) to void Foo(IList<T> input).

These people are wrong.

It's more nuanced than that. If you are returning an IList<T> as part of the public interface to your library, you leave yourself interesting options to perhaps make a custom list in the future. You may not ever need that option, but it's an argument. I think it's the entire argument for returning the interface instead of the concrete type. It's worth mentioning, but in this case it has a serious flaw.

As a minor counterargument, you may find every single caller needs a List<T> anyway, and the calling code is littered with .ToList()

But far more importantly, if you are accepting an IList as a parameter you'd better be careful, because IList<T> and List<T> do not behave the same way. Despite the similarity in name, and despite sharing an interface they do not expose the same contract.

Suppose you have this method:

public Foo(List<int> a)
{
    a.Add(someNumber);
}

A helpful colleague "refactors" the method to accept IList<int>.

Your code is now broken, because int[] implements IList<int>, but is of fixed size. The contract for ICollection<T> (the base of IList<T>) requires the code that uses it to check the IsReadOnly flag before attempting to add or remove items from the collection. The contract for List<T> does not.

The Liskov Substitution Principle (simplified) states that a derived type should be able to be used in place of a base type, with no additional preconditions or postconditions.

This feels like it breaks the Liskov substitution principle.

 int[] array = new[] {1, 2, 3};
 IList<int> ilist = array;

 ilist.Add(4); // throws System.NotSupportedException
 ilist.Insert(0, 0); // throws System.NotSupportedException
 ilist.Remove(3); // throws System.NotSupportedException
 ilist.RemoveAt(0); // throws System.NotSupportedException

But it doesn't. The answer to this is that the example used IList<T>/ICollection<T> wrong. If you use an ICollection<T> you need to check the IsReadOnly flag.

if (!ilist.IsReadOnly)
{
   ilist.Add(4);
   ilist.Insert(0, 0); 
   ilist.Remove(3);
   ilist.RemoveAt(0);
}
else
{
   // what were you planning to do if you were given a read only list anyway?
}

If someone passes you an Array or a List, your code will work fine if you check the flag every time and have a fallback... But really; who does that? Don't you know in advance if your method needs a list that can take additional members; don't you specify that in the method signature? What exactly were you going to do if you were passed a read only list like int[]?

You can substitute a List<T> into code that uses IList<T>/ICollection<T> correctly. You cannot guarantee that you can substitute an IList<T>/ICollection<T> into code that uses List<T>.

There's an appeal to the Single Responsibility Principle / Interface Segregation Principle in a lot of the arguments to use abstractions instead of concrete types - depend on the narrowest possible interface. In most cases, if you are using a List<T> and you think you could use a narrower interface instead - why not IEnumerable<T>? This is often a better fit if you don't need to add items. If you need to add to the collection, use the concrete type, List<T>.

For me IList<T> (and ICollection<T>) is the worst part of the .NET framework. IsReadOnly violates the principle of least surprise. A class, such as Array, which never allows adding, inserting or removing items should not implement an interface with Add, Insert and Remove methods. (see also https://softwareengineering.stackexchange.com/questions/306105/implementing-an-interface-when-you-dont-need-one-of-the-properties)

Is IList<T> a good fit for your organisation? If a colleague asks you to change a method signature to use IList<T> instead of List<T>, ask them how they'd add an element to an IList<T>. If they don't know about IsReadOnly (and most people don't), then don't use IList<T>. Ever.

Note that the IsReadOnly flag comes from ICollection<T>, and indicates whether items can be added or removed from the collection; but just to really confuse things, it does not indicate whether they can be replaced, which in the case of Arrays (which return IsReadOnlys == true) can be.

For more on IsReadOnly, see msdn definition of ICollection<T>.IsReadOnly

I read the answers. Then I noticed for me that the check box was already unchecked, but it still always reloaded the files. This is the Settings->Preferences->MISC->"Remember current session for next launch" check box on version 6.3.2. The following got rid of the problem:

1. Check the check box.
2. Exit the program.
3. Start the program again.
4. Uncheck the checkbox.

I find out the way how to set the image path just remove the "/" before the destination folder as "images/66.jpg" not "/images/66.jpg" And its working fine for me.

Why do you really need your own code to download it? How about just passing your URI to Download manager?

public void downloadFile(String uRl) {
    File direct = new File(Environment.getExternalStorageDirectory()
            + "/AnhsirkDasarp");

    if (!direct.exists()) {
        direct.mkdirs();
    }

    DownloadManager mgr = (DownloadManager) getActivity().getSystemService(Context.DOWNLOAD_SERVICE);

    Uri downloadUri = Uri.parse(uRl);
    DownloadManager.Request request = new DownloadManager.Request(
            downloadUri);

    request.setAllowedNetworkTypes(
            DownloadManager.Request.NETWORK_WIFI
                    | DownloadManager.Request.NETWORK_MOBILE)
            .setAllowedOverRoaming(false).setTitle("Demo")
            .setDescription("Something useful. No, really.")
            .setDestinationInExternalPublicDir("/AnhsirkDasarp", "fileName.jpg");

    mgr.enqueue(request);

}

Using Node.js

sync mode:

var fs = require("fs");
var text = fs.readFileSync("./mytext.txt");
var textByLine = text.split("\n")

async mode:

var fs = require("fs");
fs.readFile("./mytext.txt", function(text){
    var textByLine = text.split("\n")
});

UPDATE

As of at least Node 6, readFileSync returns a Buffer, so it must first be converted to a string in order for split to work:

var text = fs.readFileSync("./mytext.txt").toString('utf-8');

Or

var text = fs.readFileSync("./mytext.txt", "utf-8");

CSV files have no limit of rows you can add to them. Excel won't hold more that the 1 million lines of data if you import a CSV file having more lines.

Excel will actually ask you whether you want to proceed when importing more than 1 million data rows. It suggests to import the remaining data by using the text import wizard again - you will need to set the appropriate line offset.

Yes, it is because you are using auto layout. Setting the view frame and resizing mask will not work.

You should read Working with Auto Layout Programmatically and Visual Format Language.

You will need to get the current constraints, add the text field, adjust the contraints for the text field, then add the correct constraints on the text field.

The GNU Coding Standard is a good reference for things like this. This section deals with the output of --help. In this case it is not very specific. You probably can't go wrong with printing a table showing the short and long options and a succinct description. Try to get the spacing between all arguments right for readability. You probably want to provide a man page (and possibly an info manual) for your tool to provide a more elaborate explanation.

By default flush mode is AUTO which means that: "The Session is sometimes flushed before query execution in order to ensure that queries never return stale state", but most of the time session is flushed when you commit your changes. Manual calling of the flush method is usefull when you use FlushMode=MANUAL or you want to do some kind of optimization. But I have never done this so I can't give you practical advice.

Here's the obvious, non linq solution:

foreach(var person in personList)
{
  if(!myDictionary.ContainsKey(person.FirstAndLastName))
    myDictionary.Add(person.FirstAndLastName, person);
}

If you don't mind always getting the last one added, you can avoid the double lookup like this:

foreach(var person in personList)
{
    myDictionary[person.FirstAndLastName] = person;
}

@ComponentScan uses string array, like this:

@ComponentScan({"com.my.package.first","com.my.package.second"})

When you provide multiple package names in only one string, Spring interprets this as one package name, and thus can't find it.

I had the same issue, and the solution is very simple, just change to git bash from cmd or other windows command line tools. Windows sometimes does not work well with git npm dependencies.

The solution provided by Emil Ingerslev is working fine, but CSS is not applied to the output. Here I found a good solution given by Andrewlimaza. It prints the contents of a given div, as it uses the window object's print method, the CSS is not lost. And there is no need for an extra iframe also.

var printContents = document.getElementById("divcontents").innerHTML;
var originalContents = document.body.innerHTML;
document.body.innerHTML = printContents;
window.print();
document.body.innerHTML = originalContents;

Update 1: There is unusual behavior, in chrome/firefox/opera/edge, the print or other buttons stopped working after the execution of this code.

Update 2: The solution given is there on the above link in comments:

.printme { display: none;}
@media print { 
    .no-printme  { display: none;}
    .printme  { display: block;}
}

<h1 class = "no-printme"> do not print this </h1>    
<div class='printme'>
  Print this only 
</div>    
<button onclick={window.print()}>Print only the above div</button>

I have seen such error and i solved it. You may have missing values in your data set. Number of observations in every column must also be the same.

I force reload my component using *ngIf.

All the components inside my container goes back to the full lifecycle hooks .

In the template :

<ng-container *ngIf="_reload">
    components here 
</ng-container>

Then in the ts file :

public _reload = true;

private reload() {
    setTimeout(() => this._reload = false);
    setTimeout(() => this._reload = true);
}

I want to return odd numbers of an array

If i read that correctly, you want something like this?

List<Integer> getOddNumbers(int[] integers) {
  List<Integer> oddNumbers = new ArrayList<Integer>();
  for (int i : integers)
    if (i % 2 != 0)
      oddNumbers.add(i);
  return oddNumbers;
}

There are two issues here.

Firstly, you can't use the [] syntax like you may be able to in other languages. Square brackets only apply to arrays in Java, and so can only be used with integer indexes.

data.put is correct but that is a statement and so must exist in a method block. Only field declarations can exist at the class level. Here is an example where everything is within the local scope of a method:

public class Data {
     public static void main(String[] args) {
         Map<String, String> data = new HashMap<String, String>();
         data.put("John", "Taxi Driver");
         data.put("Mark", "Professional Killer");
     }
 }

If you want to initialize a map as a static field of a class then you can use Map.of, since Java 9:

public class Data {
    private static final Map<String, String> DATA = Map.of("John", "Taxi Driver");
}

Before Java 9, you can use a static initializer block to accomplish the same thing:

public class Data {
    private static final Map<String, String> DATA = new HashMap<>();

    static {
        DATA.put("John", "Taxi Driver");
    }
}

If searching for a value, you will have to loop through all the data. But to minimize code involved, you can use LINQ.

Example:

Given Dictionary defined as following:

Dictionary<Int32, String> dict;

You can use following code :

// Search for all keys with given value
Int32[] keys = dict.Where(kvp => kvp.Value.Equals("SomeValue")).Select(kvp => kvp.Key).ToArray();
        
// Search for first key with given value
Int32 key = dict.First(kvp => kvp.Value.Equals("SomeValue")).Key;

I had the same problem. I was using Docker Toolbox on Windows Home. Instead of localhost I had to use http://192.168.99.100:8080/.

You can get the correct IP address using the command:

docker-machine ip

The above command returned 192.168.99.100 for me.

This is not possible (as @JaredPar already mentioned). Trying to put logic to work around this is a bad practice. In case you have a base class that have an enum, you should list of all possible enum-values there, and the implementation of class should work with the values that it knows.

E.g. Supposed you have a base class BaseCatalog, and it has an enum ProductFormats (Digital, Physical). Then you can have a MusicCatalog or BookCatalog that could contains both Digital and Physical products, But if the class is ClothingCatalog, it should only contains Physical products.

It has to do with the order in which bytes are stored in memory. The decimal number 5001 is 0x1389 in hexadecimal, so the bytes involved are 0x13 and 0x89. Many devices store numbers in little-endian format, meaning that the least significant byte comes first. So in this particular example it means that in memory the number 5001 will be stored as

0x89 0x13

The htons() function makes sure that numbers are stored in memory in network byte order, which is with the most significant byte first. It will therefore swap the bytes making up the number so that in memory the bytes will be stored in the order

0x13 0x89

On a little-endian machine, the number with the swapped bytes is 0x8913 in hexadecimal, which is 35091 in decimal notation. Note that if you were working on a big-endian machine, the htons() function would not need to do any swapping since the number would already be stored in the right way in memory.

The underlying reason for all this swapping has to do with the network protocols in use, which require the transmitted packets to use network byte order.

First of all, the code you wrote isn't portable, even if you get it to work. Why use OS-specific functions when there is a perfectly platform-independent way of doing it? Here's a version that uses just a single header file and is portable to any platform that implements the C standard library.

#include <stdio.h>

int main(int argc, char **argv)
{
    FILE* sourceFile;
    FILE* destFile;
    char buf[50];
    int numBytes;

    if(argc!=3)
    {
        printf("Usage: fcopy source destination\n");
        return 1;
    }

    sourceFile = fopen(argv[1], "rb");
    destFile = fopen(argv[2], "wb");

    if(sourceFile==NULL)
    {
        printf("Could not open source file\n");
        return 2;
    }
    if(destFile==NULL)
    {
        printf("Could not open destination file\n");
        return 3;
    }

    while(numBytes=fread(buf, 1, 50, sourceFile))
    {
        fwrite(buf, 1, numBytes, destFile);
    }

    fclose(sourceFile);
    fclose(destFile);

    return 0;
}

EDIT: The glibc reference has this to say:

In general, you should stick with using streams rather than file descriptors, unless there is some specific operation you want to do that can only be done on a file descriptor. If you are a beginning programmer and aren't sure what functions to use, we suggest that you concentrate on the formatted input functions (see Formatted Input) and formatted output functions (see Formatted Output).

If you are concerned about portability of your programs to systems other than GNU, you should also be aware that file descriptors are not as portable as streams. You can expect any system running ISO C to support streams, but non-GNU systems may not support file descriptors at all, or may only implement a subset of the GNU functions that operate on file descriptors. Most of the file descriptor functions in the GNU library are included in the POSIX.1 standard, however.

Configuration hibConfiguration = new Configuration()
            .addResource("wp4core/hibernate/config/table.hbm.xml")
            .configure();       

serviceRegistry = new ServiceRegistryBuilder()
            .applySettings(hibConfiguration.getProperties())
            .buildServiceRegistry();

sessionFactory = hibConfiguration.buildSessionFactory(serviceRegistry);
session = sessionFactory.withOptions().openSession();

As mentioned above, there are issues with using the top-most scope in your script file. Here is another issue: The script file might be run from a context that is not the global context in some run-time environment.

It has been proposed to assign the global to window directly. But that is also run-time dependent and does not work in Node etc. It goes to show that portable global variable management needs some careful consideration and extra effort. Maybe they will fix it in future ECMS versions!

For now, I would recommend something like this to support proper global management for all run-time environments:

/**
 * Exports the given object into the global context.
 */
var exportGlobal = function(name, object) {
    if (typeof(global) !== "undefined")  {
        // Node.js
        global[name] = object;
    }
    else if (typeof(window) !== "undefined") {
        // JS with GUI (usually browser)
        window[name] = object;
    }
    else {
        throw new Error("Unkown run-time environment. Currently only browsers and Node.js are supported.");
    }
};


// export exportGlobal itself
exportGlobal("exportGlobal", exportGlobal);

// create a new global namespace
exportGlobal("someothernamespace", {});

It's a bit more typing, but it makes your global variable management future-proof.

Disclaimer: Part of this idea came to me when looking at previous versions of stacktrace.js.

I reckon, one can also use Webpack or other tools to get more reliable and less hackish detection of the run-time environment.

They are just \r\n and \n are variants.

\r\n is used in windows

\n is used in mac and linux

git reset --hard HEAD^ 

Use the above command to revert merge changes.

You can't determine the amount of data in a stream without reading it; you can, however, ask for the size of a file:

http://java.sun.com/javase/6/docs/api/java/io/File.html#length()

If that isn't possible, you can write the bytes you read from the input stream to a ByteArrayOutputStream which will grow as required.

Many ways to skin the cat here and @Mitch's suggestion is a good way. If you want the client form to have more 'control', you may want to pass the instance of the parent to the child when created and then you can call any public parent method on the child.

You can also use fcntl to change the file flags in-fly.

fl = fcntl.fcntl(fd.fileno(), fcntl.F_GETFL)
fl |= os.O_SYNC # or os.O_DSYNC (if you don't care the file timestamp updates)
fcntl.fcntl(fd.fileno(), fcntl.F_SETFL, fl)

The magic variables %n contains the arguments used to invoke the file: %0 is the path to the bat-file itself, %1 is the first argument after, %2 is the second and so on.

Since the arguments are often file paths, there is some additional syntax to extract parts of the path. ~d is drive, ~p is the path (without drive), ~n is the file name. They can be combined so ~dp is drive+path.

%~dp0 is therefore pretty useful in a bat: it is the folder in which the executing bat file resides.

You can also get other kinds of meta info about the file: ~t is the timestamp, ~z is the size.

Look here for a reference for all command line commands. The tilde-magic codes are described under for.

You should write :

if (self.a != 0) and (self.b != 0) :

"&" is the bit wise operator and does not suit for boolean operations. The equivalent of "&&" is "and" in Python.

A shorter way to check what you want is to use the "in" operator :

if 0 not in (self.a, self.b) :

You can check if anything is part of a an iterable with "in", it works for :

• Tuples. I.E : "foo" in ("foo", 1, c, etc) will return true
• Lists. I.E : "foo" in ["foo", 1, c, etc] will return true
• Strings. I.E : "a" in "ago" will return true
• Dict. I.E : "foo" in {"foo" : "bar"} will return true

As an answer to the comments :

Yes, using "in" is slower since you are creating an Tuple object, but really performances are not an issue here, plus readability matters a lot in Python.

For the triangle check, it's easier to read :

0 not in (self.a, self.b, self.c)

Than

(self.a != 0) and (self.b != 0) and (self.c != 0) 

It's easier to refactor too.

Of course, in this example, it really is not that important, it's very simple snippet. But this style leads to a Pythonic code, which leads to a happier programmer (and losing weight, improving sex life, etc.) on big programs.

For what it worth, if anyone has this problem only in VSCode, just restart VSCode and it should fix it. Sometimes, Intellisense seems to mess up with imports or types.

Related to Typescript: Argument of type 'RegExpMatchArray' is not assignable to parameter of type 'string'

Demo link: https://github.com/RazvanSebastian/spring_multiple_log_files_demo.git

My solution is based on XML configuration using spring-boot-starter-log4j. The example is a basic example using spring-boot-starter and the two Loggers writes into different log files.

I let the CI server pipe the following into a file named CHANGELOG for a each new release with the date set in the release-filename:

>git log --graph --all --date=relative --pretty=format:"%x09 %ad %d %s (%aN)"

Make Countdown app Xcode 8.1, Swift 3

import UIKit
import Foundation

class ViewController: UIViewController, UITextFieldDelegate {

    var timerCount = 0
    var timerRunning = false

    @IBOutlet weak var timerLabel: UILabel! //ADD Label
    @IBOutlet weak var textField: UITextField! //Add TextField /Enter any number to Countdown

    override func viewDidLoad() {
        super.viewDidLoad()

        //Reset
        timerLabel.text = ""
        if timerCount == 0 {
            timerRunning = false
        }
}

       //Figure out Count method
    func Counting() {
        if timerCount > 0 {
        timerLabel.text = "\(timerCount)"
            timerCount -= 1
        } else {
            timerLabel.text = "GO!"

        }

    }

    //ADD Action Button
    @IBAction func startButton(sender: UIButton) {

        //Figure out timer
        if timerRunning == false {
         _ = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(ViewController.Counting), userInfo: nil, repeats: true)
            timerRunning = true
        }

        //unwrap textField and Display result
        if let countebleNumber = Int(textField.text!) {
            timerCount = countebleNumber
            textField.text = "" //Clean Up TextField
        } else {
            timerCount = 3 //Defoult Number to Countdown if TextField is nil
            textField.text = "" //Clean Up TextField
        }

    }

    //Dismiss keyboard
    func keyboardDismiss() {
        textField.resignFirstResponder()
    }

    //ADD Gesture Recignizer to Dismiss keyboard then view tapped
    @IBAction func viewTapped(_ sender: AnyObject) {
        keyboardDismiss()
    }

    //Dismiss keyboard using Return Key (Done) Button
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        keyboardDismiss()

        return true
    }

}

https://github.com/nikae/CountDown-

You need to make sure that the value you pass to the directory argument is an absolute path, corrected for the current location of your application.

The best way to do this is to configure UPLOAD_FOLDER as a relative path (no leading slash), then make it absolute by prepending current_app.root_path:

@app.route('/uploads/<path:filename>', methods=['GET', 'POST'])
def download(filename):
    uploads = os.path.join(current_app.root_path, app.config['UPLOAD_FOLDER'])
    return send_from_directory(directory=uploads, filename=filename)

It is important to reiterate that UPLOAD_FOLDER must be relative for this to work, e.g. not start with a /.

A relative path could work but relies too much on the current working directory being set to the place where your Flask code lives. This may not always be the case.

This will inspect the docker image and print the layers:

$ docker image inspect nginx -f '{{.RootFS.Layers}}'
[sha256:d626a8ad97a1f9c1f2c4db3814751ada64f60aed927764a3f994fcd88363b659 sha256:82b81d779f8352b20e52295afc6d0eab7e61c0ec7af96d85b8cda7800285d97d sha256:7ab428981537aa7d0c79bc1acbf208c71e57d9678f7deca4267cc03fba26b9c8]

My suggestions :

• Keep the program modular. Keep the Calculate class in a separate Calculate.java file and create a new class that calls the main method. This would make the code readable.

• For setting the values in the number, use constructors. Do not use like the methods you have used above like :

  public void setNumber(double fnum, double snum){ this.fn = fnum; this.sn = snum; }

  Constructors exists to initialize the objects.This is their job and they are pretty good at it.

• Getters for members of Calculate class seem in place. But setters are not. Getters and setters serves as one important block in the bridge of efficient programming with java. Put setters for fnum and snum as well

• In the main class, create a Calculate object using the new operator and the constructor in place.

• Call the getAnswer() method with the created Calculate object.

Rest of the code looks fine to me. Be modular. You could read your program in a much better way.

Here is my modular piece of code. Two files : Main.java & Calculate.java

Calculate.java

public class Calculate {


private double fn;
private double sn;
private char op;

    public double getFn() {
        return fn;
    }

    public void setFn(double fn) {
        this.fn = fn;
    }

    public double getSn() {
        return sn;
    }

    public void setSn(double sn) {
        this.sn = sn;
    }

    public char getOp() {
        return op;
    }

    public void setOp(char op) {
        this.op = op;
    }



    public Calculate(double fn, double sn, char op) {
        this.fn = fn;
        this.sn = sn;
        this.op = op;
    }


public void getAnswer(){
    double ans;
    switch (getOp()){
        case '+': 
            ans = add(getFn(), getSn());
            ansOutput(ans);
            break;
        case '-': 
            ans = sub (getFn(), getSn());
            ansOutput(ans);
            break;
        case '*': 
            ans = mul (getFn(), getSn());
            ansOutput(ans);
            break;
        case '/': 
            ans = div (getFn(), getSn());
            ansOutput(ans);
            break;
        default:
            System.out.println("--------------------------");
            System.out.println("Invalid choice of operator");
            System.out.println("--------------------------");
        }
    }
    public static double add(double x,double y){
        return x + y;
    }
    public static double sub(double x, double y){
        return x - y;
    }
    public static double mul(double x, double y){
        return x * y;
    }
    public static double div(double x, double y){
        return x / y;
    }

    public static void ansOutput(double x){
        System.out.println("----------- -------");
        System.out.printf("the answer is %.2f\n", x);
        System.out.println("-------------------");
    }
}

Main.java

public class Main {
    public static void main(String args[])
    {
        Calculate obj = new Calculate(1,2,'+');
        obj.getAnswer();
    }
}

Starting with the repo in the original state

To remove the merge commit and squash the branch into a single commit in the mainline

Use these commands (replacing 5 and 1 with the SHAs of the corresponding commits):

git checkout 5
git reset --soft 1
git commit --amend -m '1 2 3 4 5'
git rebase HEAD master

To retain a merge commit but squash the branch commits into one:

Use these commands (replacing 5, 1 and C with the SHAs of the corresponding commits):

git checkout -b tempbranch 5
git reset --soft 1
git commit --amend -m '1 2 3 4 5'
git checkout C
git merge --no-ff tempbranch
git rebase HEAD master

To remove the merge commit and replace it with individual commits from the branch

Just do (replacing 5 with the SHA of the corresponding commit):

git rebase 5 master

And finally, to remove the branch entirely

Use this command (replacing C and D with the SHAs of the corresponding commits):

git rebase --onto C D~ master

This is a general error message, you may have encountered during the react native application development. So In this tutorial we are going to provide solution to this issue.

Issue Description : Unable to load script from assets index.android.bundle on windows Unable to load script from assets index.android.bundle on windows

Follow the below steps to solve above issue :

Step-1 : Create "assets" folder inside your project directory Now create assets folder inside the project directory that is "MobileApp\android\app\src\main". You can manually create assets folder :

< OR >

you can create folder by using command as well. Command : mkdir android/app/src/main/assets

Step-2 : Running your React Native application Lets run the below command to run the react native application in emulator or physical device.

Switch to project directory. cd MobileApp

Run the below command that helps to bundle you android application project.

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

Run the Final step to run react native application in emulator or physical device. react-native run-android

< OR >

Also you can combine last two command in one, In this case case you have to execute command only once.

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res && react-native run-android

< OR >

You can automate the above steps by placing them in scripts part of package.json like this:

"android-android": "react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res && react-native run-android"

If everything is set up correctly, you should see your new app running in your Android emulator shortly.

if you are coding in jupyter notebook, and want to check which cuda version tf is using, run the follow command directly into jupyter cell:

!conda list cudatoolkit

!conda list cudnn

and to check if the gpu is visible to tf:

tf.test.is_gpu_available(
    cuda_only=False, min_cuda_compute_capability=None
)

Simple & Best way:

onclick="parentNode.remove()"

Deletes the complete parent from html

Get your answers here:

Abstract class vs Interface in Java

Can an abstract class have a final method?

BTW - those are question you asked recently. Think about a new question to build up reputation...

Edit:

Just realized, that the posters of this and the referenced questions have the same or at least similiar name but the user-id is always different. So either, there's a technical problem, that keyur has problems logging in again and finding the answers to his questions or this is a sort of game to entertain the SO community ;)

And do not forget the "new" service type (from the k8s docu):

ExternalName: Maps the Service to the contents of the externalName field (e.g. foo.bar.example.com), by returning a CNAME record with its value. No proxying of any kind is set up.

Note: You need either kube-dns version 1.7 or CoreDNS version 0.0.8 or higher to use the ExternalName type.

nuget package manager gui extension is a GUI tool that lets you easily update/remove/install packages from Nuget server for .NET Core/.Net 5 projects

> To install new package:

1. Open your project workspace in VSCode
2. Open the Command Palette (Ctrl+Shift+P)
3. Select > Nuget Package Manager GUI
4. Click Install New Package

For update/remove the packages click Update/Remove Packages

The issue is shadow coming out the side of the containing div. In order to avoid this, the blur value must equal the absolute value of the spread value.

div {_x000D_
  -webkit-box-shadow: 0 4px 6px -6px #222;_x000D_
  -moz-box-shadow: 0 4px 6px -6px #222;_x000D_
  box-shadow: 0 4px 6px -6px #222;_x000D_
}

<div>wefwefwef</div>

covered in depth here

To convert the object to a byte array use the concept of Serialization and De-serialization.

The complete conversion from object to byte array explained in is tutorial.

http://javapapers.com/core-java/java-serialization/

Q. How can we convert object into byte array?

Q. How can we serialize a object?

Q. How can we De-serialize a object?

Q. What is the need of serialization and de-serialization?

Until now, I used the solutions described in the answers of this question. Now, I came up with a little library called Parallel Stream Support for that:

ForkJoinPool pool = new ForkJoinPool(NR_OF_THREADS);
ParallelIntStreamSupport.range(1, 1_000_000, pool)
    .filter(PrimesPrint::isPrime)
    .collect(toList())

But as @PabloMatiasGomez pointed out in the comments, there are drawbacks regarding the splitting mechanism of parallel streams which depends heavily on the size of the common pool. See Parallel stream from a HashSet doesn't run in parallel .

I am using this solution only to have separate pools for different types of work but I can not set the size of the common pool to 1 even if I don't use it.

ssh + key authentication is more reliable way than https + credential.helper

You can configure to use SSH instead of HTTPS for all the repositories as follows:

git config --global url.ssh://[email protected]/.insteadOf https://github.com/

url.<base>.insteadOf is documented here.

$collection = collect([1, 2, 3, 4, 5, 6, 7, 8, 9]);

$chunk = $collection->forPage(2, 3);

$chunk->all();

A bit late but as this is an ongoing issue with Mac OSX...

The simplest solution I found was to simply remove the OpenJDK stuff that Apple installs. Every time an update of Mac OSX arrives it gets installed and you'll need to remove it again.

This works really well if you develop apps for Google App Engine on your mac using Java. The OpenJDK does not work well and the Java version that comes with the Mac OSX Yosemite upgrade will make the Eclipse Plug-in for App Engine crash on every deployment with the helpful error: "Read timed out".

Clear:both gives you that space between them.

For example your code:

  <div style="float:left">Hello</div>
  <div style="float:right">Howdy dere pardner</div>

Will currently display as :

Hello  ...................   Howdy dere pardner

If you add the following to above snippet,

  <div style="clear:both"></div>

In between them it will display as:

Hello ................ 
                       Howdy dere pardner

giving you that space between hello and Howdy dere pardner.

Js fiiddle http://jsfiddle.net/Qk5vR/1/

-Xms initial heap size for the startup, however, during the working process the heap size can be less than -Xms due to users' inactivity or GC iterations. This is not a minimal required heap size.

-Xmx maximal heap size

I found that even after following all the steps above, I was still getting errors saying that my Maven dependencies (i.e. pom.xml) were pointing to jar files that didn't exist.

Viewing the errors in the Problems tab, for some reason these were still pointing to the old location of my repository. This was probably because I'd changed the location of my Maven repository since creating the workspace and project.

This can be easily solved by deleting the project from the Eclipse workspace, and re-adding it again through Package Explorer -> R/Click -> Import... -> Existing Projects.

document.getElementById('Id').value='new value';

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

Double[] d = {5.5, 1.3, 8.8};
Arrays.sort(d, Collections.reverseOrder());
System.out.println(Arrays.toString(d));

Collections.reverseOrder() doesn't work on primitives, but Double, Integer etc works with Collections.reverseOrder()

Its work for all external devices, But make sure only get external device folder name and then you need to get file from given location using File class.

public static List<String> getExternalMounts() {
        final List<String> out = new ArrayList<>();
        String reg = "(?i).*vold.*(vfat|ntfs|exfat|fat32|ext3|ext4).*rw.*";
        String s = "";
        try {
            final Process process = new ProcessBuilder().command("mount")
                    .redirectErrorStream(true).start();
            process.waitFor();
            final InputStream is = process.getInputStream();
            final byte[] buffer = new byte[1024];
            while (is.read(buffer) != -1) {
                s = s + new String(buffer);
            }
            is.close();
        } catch (final Exception e) {
            e.printStackTrace();
        }

        // parse output
        final String[] lines = s.split("\n");
        for (String line : lines) {
            if (!line.toLowerCase(Locale.US).contains("asec")) {
                if (line.matches(reg)) {
                    String[] parts = line.split(" ");
                    for (String part : parts) {
                        if (part.startsWith("/"))
                            if (!part.toLowerCase(Locale.US).contains("vold"))
                                out.add(part);
                    }
                }
            }
        }
        return out;
    }

Calling:

List<String> list=getExternalMounts();
        if(list.size()>0)
        {
            String[] arr=list.get(0).split("/");
            int size=0;
            if(arr!=null && arr.length>0) {
                size= arr.length - 1;
            }
            File parentDir=new File("/storage/"+arr[size]);
            if(parentDir.listFiles()!=null){
                File parent[] = parentDir.listFiles();

                for (int i = 0; i < parent.length; i++) {

                    // get file path as parent[i].getAbsolutePath());

                }
            }
        }

Getting access to external storage

In order to read or write files on the external storage, your app must acquire the READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE system permissions. For example:

<manifest ...>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    ...
</manifest>

CSS for that td: white-space: nowrap; should solve it.

Another good way of dealing with Lion's hidden scroll bars is to display a prompt to scroll down. It doesn't work with small scroll areas such as text fields but well with large scroll areas and keeps the overall style of the site. One site doing this is http://versusio.com, just check this example page and wait 1.5 seconds to see the prompt:

http://versusio.com/en/samsung-galaxy-nexus-32gb-vs-apple-iphone-4s-64gb

The implementation isn't hard but you have to take care, that you don't display the prompt when the user has already scrolled.

You need jQuery + Underscore and

$(window).scroll to check if the user already scrolled by himself,

_.delay() to trigger a delay before you display the prompt -- the prompt shouldn't be to obtrusive

$('#prompt_div').fadeIn('slow') to fade in your prompt and of course

$('#prompt_div').fadeOut('slow') to fade out when the user scrolled after he saw the prompt

In addition, you can bind Google Analytics events to track user's scrolling behavior.

I realize this thread is 1 year + old, but it helped me, albeit with a different module.

I installed mongoose-post-findv0.0.2 and this issue started. To fix it, I used the suggestions and navigated to \node_modules\mongoose-post-find\node_modules\bson\ext and opened the index.js file.

The file starts off with a try catch block trying to require the correct bson version

try {
    // Load the precompiled win32 binary
    if(process.platform == "win32" && process.arch == "x64") {
      bson = require('./win32/x64/bson');  
    } else if(process.platform == "win32" && process.arch == "ia32") {
      bson = require('./win32/ia32/bson');  
    } else {
      bson = require('../build/Release/bson');  
    }   
} catch(err) {
    // Attempt to load the release bson version
    try {
        bson = require('../browser_build/bson');
    } catch (err) {
        console.dir(err)
        console.error("js-bson: Failed to load c++ bson extension, using pure JS version");
        bson = require('../lib/bson/bson');
    }
}

this is the corrected version. What was happening is it tried to load bson from ../build/Release/bson, couldn't find it and fell into the catch. There is tried to load bson again from ../build/Release/bson and of course failed. So I changes the path in the catch to look in ../browser_build/bson. This resolved the error.

I post this for completeness.

I encountered a similar problem, I moved the project directory, resulting in installation failure, my solution is as follows: Build->ReBuild

The cross-platform way:

import time
import sys
for i in range(1,6):
    sys.stdout.write('\r\a{i}'.format(i=i))
    sys.stdout.flush()
    time.sleep(1)
sys.stdout.write('\n')

This is an example where I use the table variable to list multiple values in an IN clause. The obvious reason is to be able to change the list of values only one place in a long procedure.

To make it even more dynamic and alowing user input, I suggest declaring a varchar variable for the input, and then using a WHILE to loop trough the data in the variable and insert it into the table variable.

Replace @your_list, Your_table and the values with real stuff.

DECLARE @your_list TABLE (list varchar(25)) 
INSERT into @your_list
VALUES ('value1'),('value2376')

SELECT *  
FROM your_table 
WHERE your_column in ( select list from @your_list )

The select statement abowe will do the same as:

SELECT *  
FROM your_table 
WHERE your_column in ('value','value2376' )

You can also do

SHOW STATUS WHERE `variable_name` = 'Max_used_connections';

dangerouslySetInnerHTML has many disadvantage because it set inside the tag.

I suggest you to use some react wrapper like i found one here on npm for this purpose. html-react-parser does the same job.

import Parser from 'html-react-parser';
var thisIsMyCopy = '<p>copy copy copy <strong>strong copy</strong></p>';


render: function() {
    return (
        <div className="content">{Parser(thisIsMyCopy)}</div>
    );
}

Very Simple :)

After using hg update -r REV it wasn't clear in the answer about how to commit that change so that you can then push.

If you just try to commit after the update, Mercurial doesn't think there are any changes.

I had to first make a change to any file (say in a README) so Mercurial recognized that I made a new change, then I could commit that.

This then created two heads as mentioned.

To get rid of the other head before pushing, I then followed the No-Op Merges step to remedy that situation.

I was then able to push.

I Prefer this way ... it was much easier

http://www.pymssql.org/en/stable/pymssql_examples.html

conn = pymssql.connect("192.168.10.198", "odoo", "secret", "EFACTURA")
cursor = conn.cursor()
cursor.execute('SELECT * FROM usuario')

This may or may not exactly answer the question, but I ran into this issue (and question) when I had changed my account to have a new database I had created as my "default database". Then I deleted that database and wanted to test my creation script, from scratch. I logged off SSMS and was going to go back in, but was denied -- cannot log into default database was the error. D'oh!

What I did was, on the login dialog for SSMS, go to Options, Connection Properties, then type master on the "Connect to database" combobox. Click Connect. Got me in. From there you can run the command to:

ALTER LOGIN [DOMAIN\useracct] WITH DEFAULT_DATABASE=[master]
GO

I sometimes get this problem when changing from Debug to Release or vice-versa. Closing and reopening QtCreator and building again solves the problem for me.

Qt Creator 2.8.1; Qt 5.1.1 (MSVC2010, 32bit)

I don't believe the expression is sensical as it is.

Elvis means "if truthy, use the value, else use this other thing."

Your "other thing" is a closure, and the value is status != null, neither of which would seem to be what you want. If status is null, Elvis says true. If it's not, you get an extra layer of closure.

Why can't you just use:

(it.description == desc) && ((status == null) || (it.status == status))

Even if that didn't work, all you need is the closure to return the appropriate value, right? There's no need to create two separate find calls, just use an intermediate variable.

In my case -- I was using Icons in my resource, but I needed to add them dynamically as Images to some ToolStripMenuItem(s). So in the method that I created (which is where the code snippet below comes from), I had to convert the icon resources to bitmaps before I could return them for addition to my MenuItem.

string imageName = myImageNameStr;
imageName = imageName.Replace(" ", "_");
Icon myIcon = (Icon)Resources.ResourceManager.GetObject(imageName);
return myIcon.ToBitmap();

Something else to be aware of, if your image/icon has spaces (" ") in its name when you add them to your resource, VS will automatically replace those spaces with "_"(s). Because, spaces are not a valid character when naming your resource. Which is why I'm using the Replace() method in my referenced code. You can likely just ignore that line.

A sample - write multiple rows with boolean column (using example above by GaretJax and Eran?).

import csv
RESULT = [['IsBerry','FruitName'],
          [False,'apple'],
          [True, 'cherry'],
          [False,'orange'],
          [False,'pineapple'],
          [True, 'strawberry']]
with open("../datasets/dashdb.csv", 'wb') as resultFile:
    wr = csv.writer(resultFile, dialect='excel')
    wr.writerows(RESULT)

Result:

df_data_4 = pd.read_csv('../datasets/dashdb.csv')
df_data_4.head()

Output:

   IsBerry  FruitName
   0    False   apple
   1    True    cherry
   2    False   orange
   3    False   pineapple
   4    True    strawberry

About the same as sanchothefat's answer, but from a different aspect. I always ask myself: if I would completely remove the stylesheets from the website, do the remaining elements only belong to the content? If so, I did my job well.

Although this have an accepted answer I would like to add an observation:

In ES6 using let doesn't work:

/*this is NOT working*/_x000D_
let t = "skyBlue",_x000D_
    m = "gold",_x000D_
    b = "tomato";_x000D_
_x000D_
let color = window["b"];_x000D_
console.log(color);

However using var works

/*this IS working*/_x000D_
var t = "skyBlue",_x000D_
    m = "gold",_x000D_
    b = "tomato";_x000D_
_x000D_
let color = window["b"];_x000D_
console.log(color);

I hope this may be useful to some.

auto is not a valid value for padding property, the only thing you can do is take out padding: 0; from the * declaration, else simply assign padding to respective property block.

If you remove padding: 0; from * {} than browser will apply default styles to your elements which will give you unexpected cross browser positioning offsets by few pixels, so it is better to assign padding: 0; using * and than if you want to override the padding, simply use another rule like

.container p {
   padding: 5px;
}

There are two issues:

1. Getting the current coordinates (longitude, latitude, perhaps altitude) based on some external signals received by your device, and
2. Deriving a human-readable position (address) from the coordinates.

To get the coordinates you don't need the Internet. GPS is satellite-based. But to derive street/city information from the coordinates, you'd need either to implement the map and the corresponding algorithms yourself on the device (a lot of work!) or to rely on proven services, e.g. by Google, in which case you'd need an Internet connection.

As of recently, Google allows for caching the maps, which would at least allow you to show your current position on the map even without a data connection, provided, you had cached the map in advance, when you could access the Internet.

You can use asdf to install and switch between multiple java versions. It has plugins for other languages as well. You can install asdf with Homebrew

brew install asdf

When asdf is configured, install java plugin

asdf plugin-add java

Pick a version to install

asdf list-all java

For example to install and configure adoptopenjdk8

asdf install java adoptopenjdk-8.0.272+10
asdf global java adoptopenjdk-8.0.272+10

And finally if needed, configure JAVA_HOME for your shell. Just add to your shell init script such as ~/.zshrc in case of zsh:

. ~/.asdf/plugins/java/set-java-home.zsh

I did something like this in my project. I would like to share it here. You can add another div as a child and give it a border with small width and place it left, centre or right with usual CSS

HTML code:

    <div>
        content 
        <div class ="ac-brdr"></div>
    </div>

CSS as below:

   .active {
    color: magneta;
  }
   .active .ac-brdr {
        width: 20px;
        margin: 0 auto;
        border-bottom: 1px solid magneta;
  }

This might be helpful. You have to just trigger an event.

$("#DropDownID").trigger("liszt:updated");

Where "DropDownID" is ID of <select>.

More info here: http://harvesthq.github.com/chosen/

Try storing the connection string along with the password in a variable and assign the variable in the connection string using expression.I also faced the same issue and I solved like dis.

You should be using it like so

<?php
$dbhost = 'localhost';
$dbname = 'pdo';
$dbusername = 'root';
$dbpassword = '845625';

$link = new PDO("mysql:host=$dbhost;dbname=$dbname", $dbusername, $dbpassword);

$statement = $link->prepare('INSERT INTO testtable (name, lastname, age)
    VALUES (:fname, :sname, :age)');

$statement->execute([
    'fname' => 'Bob',
    'sname' => 'Desaunois',
    'age' => '18',
]);

Prepared statements are used to sanitize your input, and to do that you can use :foo without any single quotes within the SQL to bind variables, and then in the execute() function you pass in an associative array of the variables you defined in the SQL statement.

You may also use ? instead of :foo and then pass in an array of just the values to input like so;

$statement = $link->prepare('INSERT INTO testtable (name, lastname, age)
    VALUES (?, ?, ?)');

$statement->execute(['Bob', 'Desaunois', '18']);

Both ways have their advantages and disadvantages. I personally prefer to bind the parameter names as it's easier for me to read.

You should first take a look at this. This explains what happens when you import a package. For convenience:

The import statement uses the following convention: if a package’s __init__.py code defines a list named __all__, it is taken to be the list of module names that should be imported when from package import * is encountered. It is up to the package author to keep this list up-to-date when a new version of the package is released. Package authors may also decide not to support it, if they don’t see a use for importing * from their package.

So PyCharm respects this by showing a warning message, so that the author can decide which of the modules get imported when * from the package is imported. Thus this seems to be useful feature of PyCharm (and in no way can it be called a bug, I presume). You can easily remove this warning by adding the names of the modules to be imported when your package is imported in the __all__ variable which is list, like this

__init__.py

from . import MyModule1, MyModule2, MyModule3
__all__ = [MyModule1, MyModule2, MyModule3]

After you add this, you can ctrl+click on these module names used in any other part of your project to directly jump to the declaration, which I often find very useful.

Strictly stated you must check all of the following: defined, not empty AND not None.

For "normal" variables it makes a difference if defined and set or not set. See foo and bar in the example below. Both are defined but only foo is set.

On the other side registered variables are set to the result of the running command and vary from module to module. They are mostly json structures. You probably must check the subelement you're interested in. See xyz and xyz.msg in the example below:

cat > test.yml <<EOF
- hosts: 127.0.0.1

  vars:
    foo: ""          # foo is defined and foo == '' and foo != None
    bar:             # bar is defined and bar != '' and bar == None

  tasks:

  - debug:
      msg : ""
    register: xyz    # xyz is defined and xyz != '' and xyz != None
                     # xyz.msg is defined and xyz.msg == '' and xyz.msg != None

  - debug:
      msg: "foo is defined and foo == '' and foo != None"
    when: foo is defined and foo == '' and foo != None

  - debug:
      msg: "bar is defined and bar != '' and bar == None"
    when: bar is defined and bar != '' and bar == None

  - debug:
      msg: "xyz is defined and xyz != '' and xyz != None"
    when: xyz is defined and xyz != '' and xyz != None
  - debug:
      msg: "{{ xyz }}"

  - debug:
      msg: "xyz.msg is defined and xyz.msg == '' and xyz.msg != None"
    when: xyz.msg is defined and xyz.msg == '' and xyz.msg != None
  - debug:
      msg: "{{ xyz.msg }}"
EOF
ansible-playbook -v test.yml

As posted by 'Dan' in a similar thread, there is a possible fix if you're not using a sprite:

How do I make background-size work in IE?

filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
src='images/logo.gif',
sizingMethod='scale');

-ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(
src='images/logo.gif',
sizingMethod='scale')";

However, this scales the entire image to fit in the allocated area. So if your using a sprite, this may cause issues.

Caution
The filter has a flaw, any links inside the allocated area are no longer clickable.

no problem doing it with asp.... it's most natural to do so with MVC, but can be done with standard asp as well.

The MVC framework has all sorts of helper classes for JSON, if you can, I'd suggest sussing in some MVC-love, if not, you can probably easily just get the JSON helper classes used by MVC in and use them in the context of asp.net.

edit:

here's an example of how to return JSON data with MVC. This would be in your controller class. This is out of the box functionality with MVC--when you crate a new MVC project this stuff gets auto-created so it's nothing special. The only thing that I"m doing is returning an actionResult that is JSON. The JSON method I'm calling is a method on the Controller class. This is all very basic, default MVC stuff:

public ActionResult GetData()
{
    var data = new { Name="kevin", Age=40 };
    return Json(data, JsonRequestBehavior.AllowGet);
}

This return data could be called via JQuery as an ajax call thusly:

$.get("/Reader/GetData/", function(data) { someJavacriptMethodOnData(data); });

You can always just drop into the built-in debugger and run commands from there.

   perl -d -e 1

Another way to suppress the error: Add this line at the top in C/C++ file:

#define _CRT_SECURE_NO_WARNINGS

This will show you the branch you are on:

$ git branch -vv

This will show only the current branch you are on:

$ git for-each-ref --format='%(upstream:short)' $(git symbolic-ref -q HEAD)

for example:

myremote/mybranch

You can find out the URL of the remote that is used by the current branch you are on with:

$ git remote get-url $(git for-each-ref --format='%(upstream:short)' $(git symbolic-ref -q HEAD)|cut -d/ -f1)

for example:

https://github.com/someone/somerepo.git

I had hit this when I was trying to initiate a SOAP request from Java code. What worked for me was:

1. Get the Server certificate by hitting the URL in browser: http://docs.bvstools.com/home/ssl-documentation/exporting-certificate-authorities-cas-from-a-website This link has all the steps to get the server certificate

2. Once you have the server certificate with you follow http://java.globinch.com/enterprise-java/security/pkix-path-building-failed-validation-sun-security-validatorexception/#Valid-Certification-Path-to-Requested-Target .

Copying the text from the link, in case this link dies:

All you need to do to fix this error is to add the server certificate to your trusted Java key store. First You need to download the document from the server.

Once you have the certificate in your hard drive you can import it to the Java trust store. To import the certificate to the trusted Java key store, you can use the java ‘keytool‘ tool. On command prompt navigate to JRE bin folder, in my case the path is : C:\Program Files\Java\jdk1.7.0_75\jre\bin . Then use keytool command as follows to import the certificate to JRE.

keytool -import -alias _alias_name_ -keystore ..\lib\security\cacerts -file _path_to_cer_file

It will ask for a password. By default the password is “changeit”. If the password is different you may not be able to import the certificate.

Simply put this by a little code. Hope it is helpful to you. When you firstly request the page url. you can view the source code of it in most browser. Below is a sample of it .

The essential of Post Back is actually call the __doPostBack which submit all the form data got from your firstly requested back to the server. (__EVENTTARGET contains the id of the control.)

<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>
    NHibernate Demo
</title>
    <script language="javascript" type="text/javascript">
        function dopost() {
                __doPostBack('LinkButton1', '');    
        }
    </script>
</head>
<body>
    <h1>NHibernate Demo</h1>    
    <form name="ctl01" method="post" action="Default.aspx" id="ctl01">
<div>
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" />
<input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKLTMxNzcwNTYyMWRkKHoXAC3dty39nROvcj1ZHqZ5FYY=" />
</div>

<script type="text/javascript">
//<![CDATA[
var theForm = document.forms['ctl01'];
if (!theForm) {
    theForm = document.ctl01;
}
function __doPostBack(eventTarget, eventArgument) {
    if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
        theForm.__EVENTTARGET.value = eventTarget;
        theForm.__EVENTARGUMENT.value = eventArgument;
        theForm.submit();
    }
}
//]]>
</script>   
<div>
    <input type="hidden" name="__VIEWSTATEGENERATOR" id="__VIEWSTATEGENERATOR" value="B2D7F301" />
    <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWAwKZx5vTCgKM54rGBgLM9PumD20dn9KQguomfpAOdTG0r9Psa7al" />
</div>
        <a id="LinkButton1" href="javascript:__doPostBack('LinkButton1','')">LinkButton</a>
        <input type="button" value="testPostBack" id="testpostback" onclick="dopost();" />
    </form>
</body>
</html>

Close the modal with universal $().hide() method:

$('#product-options').hide();

You need the table name/alias in the SELECT part (maybe (vg.id, name)) :

SELECT (vg.id, name) FROM v_groups vg 
inner join people2v_groups p2vg on vg.id = p2vg.v_group_id
where p2vg.people_id =0;

The following allows for the ordering of objects by key OR by a key within an object.

In template you can do something like:

    <li ng-repeat="(k,i) in objectList | orderObjectsBy: 'someKey'">

Or even:

    <li ng-repeat="(k,i) in objectList | orderObjectsBy: 'someObj.someKey'">

The filter:

app.filter('orderObjectsBy', function(){
 return function(input, attribute) {
    if (!angular.isObject(input)) return input;

    // Filter out angular objects.
    var array = [];
    for(var objectKey in input) {
      if (typeof(input[objectKey])  === "object" && objectKey.charAt(0) !== "$")
        array.push(input[objectKey]);
    }

    var attributeChain = attribute.split(".");

    array.sort(function(a, b){

      for (var i=0; i < attributeChain.length; i++) {
        a = (typeof(a) === "object") && a.hasOwnProperty( attributeChain[i]) ? a[attributeChain[i]] : 0;
        b = (typeof(b) === "object") && b.hasOwnProperty( attributeChain[i]) ? b[attributeChain[i]] : 0;
      }

      return parseInt(a) - parseInt(b);
    });

    return array;
 }
})

Before using multidimensional arrays in Swift, consider their impact on performance. In my tests, the flattened array performed almost 2x better than the 2D version:

var table = [Int](repeating: 0, count: size * size)
let array = [Int](1...size)
for row in 0..<size {
    for column in 0..<size {
        let val = array[row] * array[column]
        // assign
        table[row * size + column] = val
    }
}

Average execution time for filling up a 50x50 Array: 82.9ms

vs.

var table = [[Int]](repeating: [Int](repeating: 0, count: size), count: size)
let array = [Int](1...size)
for row in 0..<size {
    for column in 0..<size {
        // assign
        table[row][column] = val
    }
}

Average execution time for filling up a 50x50 2D Array: 135ms

Both algorithms are O(n^2), so the difference in execution times is caused by the way we initialize the table.

Finally, the worst you can do is using append() to add new elements. That proved to be the slowest in my tests:

var table = [Int]()    
let array = [Int](1...size)
for row in 0..<size {
    for column in 0..<size {
        table.append(val)
    }
}

Average execution time for filling up a 50x50 Array using append(): 2.59s

Conclusion

Avoid multidimensional arrays and use access by index if execution speed matters. 1D arrays are more performant, but your code might be a bit harder to understand.

You can run the performance tests yourself after downloading the demo project from my GitHub repo: https://github.com/nyisztor/swift-algorithms/tree/master/big-o-src/Big-O.playground

Try this in the console:

JSON.parse(undefined)

Here is what you will get:

Uncaught SyntaxError: Unexpected token u in JSON at position 0
    at JSON.parse (<anonymous>)
    at <anonymous>:1:6

In other words, your app is attempting to parse undefined, which is not valid JSON.

There are two common causes for this. The first is that you may be referencing a non-existent property (or even a non-existent variable if not in strict mode).

window.foobar = '{"some":"data"}';
JSON.parse(window.foobarn)  // oops, misspelled!

The second common cause is failure to receive the JSON in the first place, which could be caused by client side scripts that ignore errors and send a request when they shouldn't.

Make sure both your server-side and client-side scripts are running in strict mode and lint them using ESLint. This will give you pretty good confidence that there are no typos.

We can also use this if we want to change all multiple joined blank spaces with a single character:

str.replace(/\s+/g,'X');

See it in action here: https://regex101.com/r/d9d53G/1

Explanation

/ \s+ / g

• \s+ matches any whitespace character (equal to [\r\n\t\f\v ])
• + Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)

• Global pattern flags
  • g modifier: global. All matches (don't return after first match)

Let us assume the database character set is UTF-8, which is the recommended setting in recent versions of Oracle. In this case, some characters take more than 1 byte to store in the database.

If you define the field as VARCHAR2(11 BYTE), Oracle can use up to 11 bytes for storage, but you may not actually be able to store 11 characters in the field, because some of them take more than one byte to store, e.g. non-English characters.

By defining the field as VARCHAR2(11 CHAR) you tell Oracle it can use enough space to store 11 characters, no matter how many bytes it takes to store each one. A single character may require up to 4 bytes.

There are two approaches in the standard library. One is to use java.text.DecimalFormat. The other more cryptic methods (String.format, PrintStream.printf, etc) based around java.util.Formatter should keep C programmers happy(ish).

Mootools also has a nice 'Tips' class available in their 'more builder'.

Another possible solution is to create your own custom Image view(say RotateableImageView extends ImageView )...and override the onDraw() to rotate either the canvas/bitmaps before redering on to the canvas.Don't forget to restore the canvas back.

But if you are going to rotate only a single instance of image view,your solution should be good enough.