Interesting, I didn't have any references to stdole in my project, but I had a user still receiving the error. I had to add the reference, then change the setting to include. Hopefully that will work.
Borrowing from @Khan's answer, I would do:
IF OBJECT_ID('dbo.test_abc_def', 'V') IS NOT NULL
DROP VIEW dbo.test_abc_def
GO
CREATE VIEW dbo.test_abc_def AS
SELECT
VCV.xxxx
,VCV.yyyy AS yyyy
,VCV.zzzz AS zzzz
FROM TABLE_A
Tried everything that was suggested but finally this helped me:
sudo jupyter notebook --allow-root
In my case, it didn't start the browser by itself. So just copy the link from terminal and open it by yourself.
Update: Change folder(.local) permissions by this command:
sudo chmod -R 777 .local
Under Linux, got same problem after Android Studio update (and several months without using it...).
I solved it by running the following command in a console:
mv .subversion/ .subversion.bak
I prefer that command to rm -R .subversion
since it left me a rollback option.
I assume this is *nix?
Use "here document":
sqlplus -s user/pass <<+EOF
select 1 from dual;
+EOF
EDIT: I should have tried your second example. It works, too (even in Windows, sans ticks):
$ echo 'select 1 from dual;'|sqlplus -s user/pw
1
----------
1
$
this may helps you and also add require permision
public class PhoneListener extends PhoneStateListener
{
private Context context;
public static String getincomno;
public PhoneListener(Context c) {
Log.i("CallRecorder", "PhoneListener constructor");
context = c;
}
public void onCallStateChanged (int state, String incomingNumber)
{
if(!TextUtils.isEmpty(incomingNumber)){
// here for Outgoing number make null to get incoming number
CallBroadcastReceiver.numberToCall = null;
getincomno = incomingNumber;
}
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
break;
case TelephonyManager.CALL_STATE_RINGING:
Log.d("CallRecorder", "CALL_STATE_RINGING");
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
break;
}
}
}
So I made this ..kind of game.. based on this post (using msvcr library and Python 3.7).
The following is the "main function" of the game, that is detecting the keys pressed:
# Requiered libraries - - - -
import msvcrt
# - - - - - - - - - - - - - -
def _secret_key(self):
# Get the key pressed by the user and check if he/she wins.
bk = chr(10) + "-"*25 + chr(10)
while True:
print(bk + "Press any key(s)" + bk)
#asks the user to type any key(s)
kp = str(msvcrt.getch()).replace("b'", "").replace("'", "")
# Store key's value.
if r'\xe0' in kp:
kp += str(msvcrt.getch()).replace("b'", "").replace("'", "")
# Refactor the variable in case of multi press.
if kp == r'\xe0\x8a':
# If user pressed the secret key, the game ends.
# \x8a is CTRL+F12, that's the secret key.
print(bk + "CONGRATULATIONS YOU PRESSED THE SECRET KEYS!\a" + bk)
print("Press any key to exit the game")
msvcrt.getch()
break
else:
print(" You pressed:'", kp + "', that's not the secret key(s)\n")
if self.select_continue() == "n":
if self.secondary_options():
self._main_menu()
break
If you want the full source code of the porgram you can see it or download it from here:
(note: the secret keypress is: Ctrl+F12)
I hope you can serve as an example and help for those who come to consult this information.
In Scott Meyers book I found an example of universal generic lambda expression that can be used to measure function execution time. (C++14)
auto timeFuncInvocation =
[](auto&& func, auto&&... params) {
// get time before function invocation
const auto& start = std::chrono::high_resolution_clock::now();
// function invocation using perfect forwarding
std::forward<decltype(func)>(func)(std::forward<decltype(params)>(params)...);
// get time after function invocation
const auto& stop = std::chrono::high_resolution_clock::now();
return stop - start;
};
The problem is that you are measure only one execution so the results can be very differ. To get a reliable result you should measure a large number of execution. According to Andrei Alexandrescu lecture at code::dive 2015 conference - Writing Fast Code I:
Measured time: tm = t + tq + tn + to
where:
tm - measured (observed) time
t - the actual time of interest
tq - time added by quantization noise
tn - time added by various sources of noise
to - overhead time (measuring, looping, calling functions)
According to what he said later in the lecture, you should take a minimum of this large number of execution as your result. I encourage you to look at the lecture in which he explains why.
Also there is a very good library from google - https://github.com/google/benchmark. This library is very simple to use and powerful. You can checkout some lectures of Chandler Carruth on youtube where he is using this library in practice. For example CppCon 2017: Chandler Carruth “Going Nowhere Faster”;
Example usage:
#include <iostream>
#include <chrono>
#include <vector>
auto timeFuncInvocation =
[](auto&& func, auto&&... params) {
// get time before function invocation
const auto& start = high_resolution_clock::now();
// function invocation using perfect forwarding
for(auto i = 0; i < 100000/*largeNumber*/; ++i) {
std::forward<decltype(func)>(func)(std::forward<decltype(params)>(params)...);
}
// get time after function invocation
const auto& stop = high_resolution_clock::now();
return (stop - start)/100000/*largeNumber*/;
};
void f(std::vector<int>& vec) {
vec.push_back(1);
}
void f2(std::vector<int>& vec) {
vec.emplace_back(1);
}
int main()
{
std::vector<int> vec;
std::vector<int> vec2;
std::cout << timeFuncInvocation(f, vec).count() << std::endl;
std::cout << timeFuncInvocation(f2, vec2).count() << std::endl;
std::vector<int> vec3;
vec3.reserve(100000);
std::vector<int> vec4;
vec4.reserve(100000);
std::cout << timeFuncInvocation(f, vec3).count() << std::endl;
std::cout << timeFuncInvocation(f2, vec4).count() << std::endl;
return 0;
}
EDIT: Ofcourse you always need to remember that your compiler can optimize something out or not. Tools like perf can be useful in such cases.
The answers to this question are a little out of date and missing potentially key steps, so this is an updated guide for installing an app from an external developer.
----- How to Resign an iOS App -----
Let's say you receive an app (e.g. MyApp.ipa) from another developer, and you want to be able to install and run it on your devices (by using ideviceinstaller, for example).
Prepare New Signing Assets
The first step is to attain a Provisioning Profile which includes all of the devices you wish to install and run on. Ensure that the profile contains a certificate that you have installed in your Keychain Access (e.g. iPhone Developer: Some Body (XXXXXXXXXX) ). Download the profile (MyProfile.mobileprovision) so you can replace the profile embedded in the app.
Next, we are going to prepare an entitlements file to include in the signing. Open up your terminal and run the following.
$ security cms -D -i path/to/MyProfile.mobileprovision > provision.plist
This will create an xml file describing your Provisioning Profile. Next, we want to extract the entitlements into a file.
$ /usr/libexec/PlistBuddy -x -c 'Print :Entitlements' provision.plist > entitlements.plist
Replace The Provisioning Profile and Resign App
If you are working with a .ipa file, first, unzip the app (if you have a .app instead, you can skip this step).
$ unzip MyApp.ipa
Your working directory will now contain Payload/
and Payload/MyApp.app/
. Next, remove the old code signature files.
$ rm -rf Payload/MyApp.app/_CodeSignature
Replace the existing provisioning profile (i.e. embedded.mobileprovision) with your own.
$ cp path/to/MyProfile.mobileprovision Payload/MyApp.app/embedded.mobileprovision
Now sign the app with the certificate included in your provisioning profile and the entitlements.plist that you created earlier.
$ /usr/bin/codesign -f -s "iPhone Developer: Some Body (XXXXXXXXXX)" --entitlements entitlements.plist Payload/MyApp.app
IMPORTANT: You must also resign all frameworks included in the app. You will find these in Payload/MyApp.app/Frameworks
. If the app is written in Swift or if it includes any additional frameworks these must be resigned or the app will install but not run.
$ /usr/bin/codesign -f -s "iPhone Developer: Some Body (XXXXXXXXXX)" --entitlements entitlements.plist Payload/MyApp.app/Frameworks/*
You can now rezip the app.
$ zip -qr MyApp-resigned.ipa Payload
Done
You may now remove the Payload
directory since you have your original app (MyApp.ipa) and your resigned version (MyApp-resigned.ipa). You can now install MyApp-resigned.ipa on any device included in your provisioning profile.
There are generaly two options, because docker doesn't support this feature now:
Create your own script, which will act like runner for your command. For example:
#!/bin/bash
export VAR1=VAL1
export VAR2=VAL2
your_cmd
Run your command following way:
docker exec -i CONTAINER_ID /bin/bash -c "export VAR1=VAL1 && export VAR2=VAL2 && your_cmd"
Swift 2.0: : Using UILabel Extension
Make constant enum values in a empty Swift file.
// AppRef.swift
import UIKit
import Foundation
enum UILabelTextPositions : String {
case VERTICAL_ALIGNMENT_TOP = "VerticalAlignmentTop"
case VERTICAL_ALIGNMENT_MIDDLE = "VerticalAlignmentMiddle"
case VERTICAL_ALIGNMENT_BOTTOM = "VerticalAlignmentBottom"
}
Using UILabel Extension:
Make a empty Swift class and name it. Add the following.
// AppExtensions.swift
import Foundation
import UIKit
extension UILabel{
func makeLabelTextPosition (sampleLabel :UILabel?, positionIdentifier : String) -> UILabel
{
let rect = sampleLabel!.textRectForBounds(bounds, limitedToNumberOfLines: 0)
switch positionIdentifier
{
case "VerticalAlignmentTop":
sampleLabel!.frame = CGRectMake(bounds.origin.x+5, bounds.origin.y, rect.size.width, rect.size.height)
break;
case "VerticalAlignmentMiddle":
sampleLabel!.frame = CGRectMake(bounds.origin.x+5,bounds.origin.y + (bounds.size.height - rect.size.height) / 2,
rect.size.width, rect.size.height);
break;
case "VerticalAlignmentBottom":
sampleLabel!.frame = CGRectMake(bounds.origin.x+5, bounds.origin.y + (bounds.size.height - rect.size.height),rect.size.width, rect.size.height);
break;
default:
sampleLabel!.frame = bounds;
break;
}
return sampleLabel!
}
}
Usage :
myMessageLabel.makeLabelTextPosition(messageLabel, positionIdentifier: UILabelTextPositions.VERTICAL_ALIGNMENT_TOP.rawValue)
Iam amazed that none of the top answers pointed out that under recent Objective-C versions (after they added literals), you can concatenate just like this:
@"first" @"second"
And it will result in:
@"firstsecond"
You can not use it with NSString objects, only with literals, but it can be useful in some cases.
In HTML5 there is no scrolling attribute because "its function is better handled by CSS" see http://www.w3.org/TR/html5-diff/ for other changes. Well and the CSS solution:
CSS solution:
HTML4's scrolling="no"
is kind of an alias of the CSS's overflow: hidden
, to do so it is important to set size attributes width/height:
iframe.noScrolling{
width: 250px; /*or any other size*/
height: 300px; /*or any other size*/
overflow: hidden;
}
Add this class to your iframe and you're done:
<iframe src="http://www.example.com/" class="noScrolling"></iframe>
! IMPORTANT NOTE ! : overflow: hidden
for <iframe>
is not fully supported by all modern browsers yet(even chrome doesn't support it yet) so for now (2013) it's still better to use Transitional version and use scrolling="no"
and overflow:hidden
at the same time :)
UPDATE 2020: the above is still true, oveflow for iframes is still not supported by all majors
I always declare string with string.empty;
I understand that
std::atomic<>
makes an object atomic.
That's a matter of perspective... you can't apply it to arbitrary objects and have their operations become atomic, but the provided specialisations for (most) integral types and pointers can be used.
a = a + 12;
std::atomic<>
does not (use template expressions to) simplify this to a single atomic operation, instead the operator T() const volatile noexcept
member does an atomic load()
of a
, then twelve is added, and operator=(T t) noexcept
does a store(t)
.
If you want to allow Html tags only for few textbox in mvc
You can do one thing
in controller
[ValidateInput(false)]
public ActionResult CreateNewHtml() //view
{
return View();
}
[ValidateInput(false)]
[HttpPost]
public ActionResult CreateNewHtml(cbs obj)//view cbs is database class
{
repo.AddHtml(obj);
return View();
}
Try this:
INSERT INTO newTable SELECT * FROM initial_Table
Nginx can act as a reverse proxy server which works just like a project manager. When it gets a request it analyses it and forwards the request to upstream(project members) or handles itself. Nginx has two ways of handling a request based on how its configured.
forward the request to another server
server{
server_name mydomain.com sub.mydomain.com;
location /{
proxy_pass http://127.0.0.1:8000;
proxy_set_header Host $host;
proxy_pass_request_headers on;
}
location /static/{
alias /my/static/files/path;
}
}
Server the request
With this configuration, when the request url is
mydomain.com/static/myjs.js
it returns themyjs.js
file in/my/static/files/path
folder. When you configure nginx to serve static files, it handles the request itself.
forward the request to another server
When the request url is
mydomain.com/dothis
nginx will forwards the request to http://127.0.0.1:8000. The service which is running on the localhost 8000 port will receive the request and returns the response to nginx and nginx returns the response to the client.
When you run node.js server on the port 8000 nginx will forward the request to node.js. Write node.js logic and handle the request. That's it you have your nodejs server running behind the nginx server.
If you wish to run any other services other than nodejs just run another service like Django, flask, php on different ports and config it in nginx.
try this
Execute this SQL:
SHOW TABLE STATUS LIKE '<tablename>'
and fetch the value of the field Auto_increment
If you use custom formatting and need to concatenate those values elsewhere, you can copy them and Paste Special --> Values elsewhere in the sheet (or on a different sheet), then concatenate those values.
(The best answer I've seen to this problem is: https://stackoverflow.com/a/42544963/714112 , copied here since this thread appears high in Google search rankings but that other one doesn't)
This shell script displays all blob objects in the repository, sorted from smallest to largest.
For my sample repo, it ran about 100 times faster than the other ones found here.
On my trusty Athlon II X4 system, it handles the Linux Kernel repository with its 5,622,155 objects in just over a minute.
git rev-list --objects --all \
| git cat-file --batch-check='%(objecttype) %(objectname) %(objectsize) %(rest)' \
| awk '/^blob/ {print substr($0,6)}' \
| sort --numeric-sort --key=2 \
| cut --complement --characters=13-40 \
| numfmt --field=2 --to=iec-i --suffix=B --padding=7 --round=nearest
When you run above code, you will get nice human-readable output like this:
...
0d99bb931299 530KiB path/to/some-image.jpg
2ba44098e28f 12MiB path/to/hires-image.png
bd1741ddce0d 63MiB path/to/some-video-1080p.mp4
Suppose you then want to remove the files a
and b
from every commit reachable from HEAD
, you can use this command:
git filter-branch --index-filter 'git rm --cached --ignore-unmatch a b' HEAD
public static Map <String, String> parseQueryString (final URL url)
throws UnsupportedEncodingException
{
final Map <String, String> qps = new TreeMap <String, String> ();
final StringTokenizer pairs = new StringTokenizer (url.getQuery (), "&");
while (pairs.hasMoreTokens ())
{
final String pair = pairs.nextToken ();
final StringTokenizer parts = new StringTokenizer (pair, "=");
final String name = URLDecoder.decode (parts.nextToken (), "ISO-8859-1");
final String value = URLDecoder.decode (parts.nextToken (), "ISO-8859-1");
qps.put (name, value);
}
return qps;
}
Ping is meant to be sent only from server to client, and browser should answer as soon as possible with Pong OpCode, automatically. So you have not to worry about that on higher level.
Although that not all browsers support standard as they suppose to, they might have some differences in implementing such mechanism, and it might even means there is no Pong response functionality. But personally I am using Ping / Pong, and never saw client that does not implement this type of OpCode and automatic response on low level client side implementation.
I understand you are looking for an answer in python, but here is how one would do it in ruby..
http://watirwebdriver.com/screenshots/
If that only works by saving in current directory only.. I would first assign the image to a variable and then save that variable to disk as a PNG file.
eg:
image = b.screenshot.png
File.open("testfile.png", "w") do |file|
file.puts "#{image}"
end
where b is the browser variable used by webdriver. i have the flexibility to provide an absolute or relative path in "File.open" so I can save the image anywhere.
If you want to change background color, try this:
plt.rcParams['figure.facecolor'] = 'white'
$(function() {
(function(){
var pthis = this;
this.mseg = 115000;
this.href = 'file.php'
this.setTimer = function() {
return (window.setTimeout( function() {window.location.href = this.href;}, this.mseg));
};
this.timer = pthis.setTimer();
this.clear = function(ref) { clearTimeout(ref.timer); ref.setTimer(); };
$(window.document).click( function(){pthis.clear.apply(pthis, [pthis])} );
})();
});
To convert string to in-addr:
in_addr maskAddr;
inet_aton(netMaskStr, &maskAddr);
To convert in_addr to string:
char saddr[INET_ADDRSTRLEN];
inet_ntop(AF_INET, &inaddr, saddr, INET_ADDRSTRLEN);
Facebook uses og:tags
and the Open Graph Protocol to decipher what information to display when previewing your URL in a share dialog
or in a news feed on facebook.
The og:tags
contain information such as :
Here is an example ( taken from the facebook documentation ) of some og:tags
<meta property="og:title" content="The Rock"/>
<meta property="og:type" content="movie"/>
<meta property="og:url" content="http://www.imdb.com/title/tt0117500/"/>
<meta property="og:image" content="http://ia.media-imdb.com/rock.jpg"/>
Once you have implemented the correct markup of the og:tags
and set their values, you can test how facebook will view your URL by using the Facebook Debugger. The debugger tool will also highlight any problems it finds with the og:tags
on the page or lack there-of.
One thing to keep in mind is that facebook does do some caching with regard to this information, so in order for changes to take effect your page will have t be scraped as stated in the documentation :
Editing Meta Tags
You can update the attributes of your page by updating your page's tags. Note that og:title and og:type are only editable initially - after your page receives 50 likes the title becomes fixed, and after your page receives 10,000 likes the type becomes fixed. These properties are fixed to avoid surprising users who have liked the page already. Changing the title or type tags after these limits are reached does nothing, your page retains the original title and type.
For the changes to be reflected on Facebook, you must force your page to be scraped. The page is scraped when an admin for the page clicks the Like button or when the URL is entered into the
Facebook URL LinterFacebook Debugger...
You may want trigger action to execute once after the client executes a statement that modifies a million rows (statement-level trigger). Or, you may want to trigger the action once for every row that is modified (row-level trigger).
EXAMPLE: Let's say you have a trigger that will make sure all high school seniors graduate. That is, when a senior's grade is 12, and we increase it to 13, we want to set the grade to NULL
.
For a statement level trigger, you'd say, after the increase-grade statement runs, check the whole table once to update any nows with grade 13 to NULL
.
For a row-level trigger, you'd say, after every row that is updated, update the new row's grade to NULL
if it is 13.
A statement-level trigger would look like this:
create trigger stmt_level_trigger
after update on Highschooler
begin
update Highschooler
set grade = NULL
where grade = 13;
end;
and a row-level trigger would look like this:
create trigger row_level_trigger
after update on Highschooler
for each row
when New.grade = 13
begin
update Highschooler
set grade = NULL
where New.ID = Highschooler.ID;
end;
Note that SQLite doesn't support statement-level triggers, so in SQLite, the FOR EACH ROW
is optional.
Windows uses a different epoch and time units: see Convert Windows Filetime to second in Unix/Linux
What std::time() returns on Windows is (as yet) unknown to me (;-))
If you are using JQuery 1.9+ then above answers will not work in Firefox.
So here is a code for latest jquery which will work in all browsers.
See live demo
Here is the code
var select_ids = [];
$(document).ready(function(e) {
$('select#myselect option').each(function(index, element) {
select_ids.push($(this).val());
})
});
function selectAll()
{
$('select#myselect').val(select_ids);
}
function deSelectAll()
{
$('select#myselect').val('');
}
Hope this will help you... :)
In Bash you can check if Imagick is an installed module:
$ php -m | grep imagick
If the response is blank it is not installed.
There is no way to automatically set CMAKE_PREFIX_PATH
in a way you want. I see following ways to solve this problem:
Put all libraries files in the same dir. That is, include/
would contain headers for all libs, lib/
- binaries, etc. FYI, this is common layout for most UNIX-like systems.
Set global environment variable CMAKE_PREFIX_PATH
to D:/develop/cmake/libs/libA;D:/develop/cmake/libs/libB;...
. When you run CMake, it would aautomatically pick up this env var and populate it's own CMAKE_PREFIX_PATH
.
Write a wrapper .bat script, which would call cmake
command with -D CMAKE_PREFIX_PATH=...
argument.
Try ["points.bean.pointsBase"]
Strings are immutable, so you need to say
sInputString = sInputString("\"","");
not just the right side of the =
As an alternative option you could install OpenSSH http://www.mls-software.com/opensshd.html and then simply ssh user@host -pw password -m command_run
Edit: After a response from user2687375 when installing, select client only. Once this is done you should be able to initiate SSH from command.
Then you can create an ssh batch script such as
ECHO OFF
CLS
:MENU
ECHO.
ECHO ........................
ECHO SSH servers
ECHO ........................
ECHO.
ECHO 1 - Web Server 1
ECHO 2 - Web Server 2
ECHO E - EXIT
ECHO.
SET /P M=Type 1 - 2 then press ENTER:
IF %M%==1 GOTO WEB1
IF %M%==2 GOTO WEB2
IF %M%==E GOTO EOF
REM ------------------------------
REM SSH Server details
REM ------------------------------
:WEB1
CLS
call ssh [email protected]
cmd /k
:WEB2
CLS
call ssh [email protected]
cmd /k
This task can also be solved with a different approach. Instead of programming a converter and enlarging the code in the XAML, you can also aggregate the various parameters in the ViewModel. As a result, the ViewModel then has one more property that contains all parameters.
An example of my current application, which also let me deal with the topic. A generic RelayCommand is required: https://stackoverflow.com/a/22286816/7678085
The ViewModelBase is extended here by a command SaveAndClose. The generic type is a named tuple that represents the various parameters.
public ICommand SaveAndCloseCommand => saveAndCloseCommand ??= new RelayCommand<(IBaseModel Item, Window Window)>
(execute =>
{
execute.Item.Save();
execute.Window?.Close(); // if NULL it isn't closed.
},
canExecute =>
{
return canExecute.Item?.IsItemValide ?? false;
});
private ICommand saveAndCloseCommand;
Then it contains a property according to the generic type:
public (IBaseModel Item, Window Window) SaveAndCloseParameter
{
get => saveAndCloseParameter ;
set
{
SetProperty(ref saveAndCloseParameter, value);
}
}
private (IBaseModel Item, Window Window) saveAndCloseParameter;
The XAML code of the view then looks like this: (Pay attention to the classic click event)
<Button
Command="{Binding SaveAndCloseCommand}"
CommandParameter="{Binding SaveAndCloseParameter}"
Click="ButtonApply_Click"
Content="Apply"
Height="25" Width="100" />
<Button
Command="{Binding SaveAndCloseCommand}"
CommandParameter="{Binding SaveAndCloseParameter}"
Click="ButtonSave_Click"
Content="Save"
Height="25" Width="100" />
and in the code behind of the view, then evaluating the click events, which then set the parameter property.
private void ButtonApply_Click(object sender, RoutedEventArgs e)
{
computerViewModel.SaveAndCloseParameter = (computerViewModel.Computer, null);
}
private void ButtonSave_Click(object sender, RoutedEventArgs e)
{
computerViewModel.SaveAndCloseParameter = (computerViewModel.Computer, this);
}
Personally, I think that using the click events is not a break with the MVVM pattern. The program flow control is still located in the area of ??the ViewModel.
In react, state will not change until you do it by using this.setState({});
.
That is why your console message showing old values.
on Wayland xcopy doesn't seem to work, use wl-clipboard instead. e.g. on fedora
sudo dnf install wl-clipboard
tree | wl-copy
wl-paste > file
The new
keyword allocates memory on the Java heap. The heap is the main pool of memory, accessible to the whole of the application. If there is not enough memory available to allocate for that object, the JVM attempts to reclaim some memory from the heap with a garbage collection. If it still cannot obtain enough memory, an OutOfMemoryError
is thrown, and the JVM exits.
The heap is split into several different sections, called generations. As objects survive more garbage collections, they are promoted into different generations. The older generations are not garbage collected as often. Because these objects have already proven to be longer lived, they are less likely to be garbage collected.
When objects are first constructed, they are allocated in the Eden Space. If they survive a garbage collection, they are promoted to Survivor Space, and should they live long enough there, they are allocated to the Tenured Generation. This generation is garbage collected much less frequently.
There is also a fourth generation, called the Permanent Generation, or PermGen. The objects that reside here are not eligible to be garbage collected, and usually contain an immutable state necessary for the JVM to run, such as class definitions and the String constant pool. Note that the PermGen space is planned to be removed from Java 8, and will be replaced with a new space called Metaspace, which will be held in native memory. reference:http://www.programcreek.com/2013/04/jvm-run-time-data-areas/
In this day and age of mouse driven computers and tablets with touch screens etc, it is often forgotten to cater for input via keyboard only. A button should support a focus rectangle (the dotted rectangle when the button has focus) or another shape matching the button shape.
To add a focus rectangle to the button, use this XAML (from this site). Focus rectangle style:
<Style x:Key="ButtonFocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Border>
<Rectangle Margin="2" StrokeThickness="1" Stroke="#60000000" StrokeDashArray="1 2" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Applying the style to the button:
<Style TargetType="Button">
<Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}" />
...
In windows:
pip install tesseract
pip install tesseract-ocr
and check the file which is stored in your system usr/appdata/local/programs/site-pakages/python/python36/lib/pytesseract/pytesseract.py file and compile the file
# list loss and acc are your data
fig = plt.figure()
ax1 = fig.add_subplot(121)
ax2 = fig.add_subplot(122)
ax1.plot(iteration1, loss)
ax2.plot(iteration2, acc)
ax1.set_title('Training Loss')
ax2.set_title('Training Accuracy')
ax1.set_xlabel('Iteration')
ax1.set_ylabel('Loss')
ax2.set_xlabel('Iteration')
ax2.set_ylabel('Accuracy')
Select
*
from
Calculation
where
EmployeeId=1 and Date between #2011/02/25# and #2011/02/27#;
.span7.btn { display: block; margin-left: auto; margin-right: auto; }
I am not completely familiar with bootstrap, but something like the above should do the trick. It may not be necessary to include all of the classes. This should center the button within its parent, the span7.
document.getElementById('hello').classList.add('someClass');
The .add
method will only add the class if it doesn't already exist on the element. So no need to worry about duplicate class names.
<?php
$args = array( 'post_type' => 'product', 'category' => 34, 'posts_per_page' => -1 );
$products = get_posts( $args );
?>
This should grab all the products you want, I may have the post type wrong though I can't quite remember what woo-commerce uses for the post type. It will return an array of products
The question is a little tricky to understand but I'm guessing that the problem is that you're trying to remove elements from the Dictionary while you iterate over the keys. I think in that case you have no choice but to use a second array.
ArrayList lList = new ArrayList(lDict.Keys);
foreach (object lKey in lList)
{
if (<your condition here>)
{
lDict.Remove(lKey);
}
}
If you can use generic lists and dictionaries instead of an ArrayList then I would, however the above should just work.
Here is a simple way
<div (click)="$event.preventDefault()">
<a href="#"></a>
</div>
capture the bubbling event and shoot it down
For the position for the context menu, y found the problem that I needed a it to be relative to the DataGridView, and the event I needed to use gives the poistion relative to the cell clicked. I haven't found a better solution so I implemented this function in the commons class, so I call it from wherever I need.
It's quite tested and works well. I Hope you find it useful.
/// <summary>
/// When DataGridView_CellMouseClick ocurs, it gives the position relative to the cell clicked, but for context menus you need the position relative to the DataGridView
/// </summary>
/// <param name="dgv">DataGridView that produces the event</param>
/// <param name="e">Event arguments produced</param>
/// <returns>The Location of the click, relative to the DataGridView</returns>
public static Point PositionRelativeToDataGridViewFromDataGridViewCellMouseEventArgs(DataGridView dgv, DataGridViewCellMouseEventArgs e)
{
int x = e.X;
int y = e.Y;
if (dgv.RowHeadersVisible)
x += dgv.RowHeadersWidth;
if (dgv.ColumnHeadersVisible)
y += dgv.ColumnHeadersHeight;
for (int j = 0; j < e.ColumnIndex; j++)
if (dgv.Columns[j].Visible)
x += dgv.Columns[j].Width;
for (int i = 0; i < e.RowIndex; i++)
if (dgv.Rows[i].Visible)
y += dgv.Rows[i].Height;
return new Point(x, y);
}
It's super simple
using (var dbContext = new DbContextBuilder().BuildDbContext())
{
dbContext.Update(entity);
await dbContext.SaveChangesAsync();
}
For me problem did not resolve even after installing VC++ re-distributions. I had to manually download MSVCR110.dll file from https://www.dll-files.com/msvcr110.dll.html and placed it in c:/ > windows > system32 and it worked correctly.
I had a very similar problem. The goal was to mock a service that persists Objects and can return them by their name. The service looks like this:
public class RoomService {
public Room findByName(String roomName) {...}
public void persist(Room room) {...}
}
The service mock uses a map to store the Room instances.
RoomService roomService = mock(RoomService.class);
final Map<String, Room> roomMap = new HashMap<String, Room>();
// mock for method persist
doAnswer(new Answer<Void>() {
@Override
public Void answer(InvocationOnMock invocation) throws Throwable {
Object[] arguments = invocation.getArguments();
if (arguments != null && arguments.length > 0 && arguments[0] != null) {
Room room = (Room) arguments[0];
roomMap.put(room.getName(), room);
}
return null;
}
}).when(roomService).persist(any(Room.class));
// mock for method findByName
when(roomService.findByName(anyString())).thenAnswer(new Answer<Room>() {
@Override
public Room answer(InvocationOnMock invocation) throws Throwable {
Object[] arguments = invocation.getArguments();
if (arguments != null && arguments.length > 0 && arguments[0] != null) {
String key = (String) arguments[0];
if (roomMap.containsKey(key)) {
return roomMap.get(key);
}
}
return null;
}
});
We can now run our tests on this mock. For example:
String name = "room";
Room room = new Room(name);
roomService.persist(room);
assertThat(roomService.findByName(name), equalTo(room));
assertNull(roomService.findByName("none"));
Be sure to include the Key
in the imports...
const {Builder, By, logging, until, Key} = require('selenium-webdriver');
searchInput.sendKeys(Key.ENTER)
worked great for me
One solution that has worked for me is adding the style white-space: normal;
to the textarea because at times it is not feasible to eliminate all the whitespace (for example when you want your code to abide to your coding guidelines which requires adding tabs, whitespaces and line breaks)
Please note that the default for textarea, at least in chrome is:
white-space: pre-wrap;
Adding a suffix like this:
$('#img_gif').attr('src','file.gif?' + Math.random());
the browser is compelled to download a new image every time the user accesses the page. Moreover the client cache may be quickly filled.
Here follows the alternative solution I tested on Chrome 49 and Firefox 45.
In the css stylesheet set the display property as 'none', like this:
#img_gif{
display:'none';
}
Outside the '$(document).ready' statement insert:
$(window).load(function(){ $('#img_gif').show(); });
Every time the user accesses the page, the animation will be started after the complete load of all the elements. This is the only way I found to sincronize gif and html5 animations.
Please note that:
The gif animation will not restart after refreshing the page (like pressing "F5").
The "$(document).ready" statement doesn't produce the same effect of "$(window).load".
The property "visibility" doesn't produce the same effect of "display".
There is no "standard" library function to do this. The standard (perhaps surprisingly) does not actually recognise the concept of a "keyboard", albeit it does have a standard for "console input".
There are various ways to achieve it on different operating systems (see herohuyongtao's solution) but it is not portable across all platforms that support keyboard input.
Remember that C++ (and C) are devised to be languages that can run on embedded systems that do not have keyboards. (Having said that, an embedded system might not have various other devices that the standard library supports).
This matter has been debated for a long time.
you can use LayoutInflater to inflate your dynamic data as a layout file.
UPDATE : first create a LinearLayout inside your CardView's layout and assign an ID for it.
after that create a layout file that you want to inflate. at last in your onBindViewHolder
method in your "RAdaper" class. write these codes :
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = mInflater.inflate(R.layout.my_list_custom_row, parent, false);
after that you can initialize data and ClickListeners with your RAdapter Data. hope it helps.
You can do the following:
Example using PHP (you can do this in any language of your choice):
Server:
<?php $years = range(1900, strftime("%Y", time())); ?>
HTML
<select>
<option>Select Year</option>
<?php foreach($years as $year) : ?>
<option value="<?php echo $year; ?>"><?php echo $year; ?></option>
<?php endforeach; ?>
</select>
As an added benefit, this works has a browser compatibility of a 100% ;-)
If you are using Bootstrap 4, you can simple use a color utility class (e.g. text-success
, text-danger
, etc... ).
You can also create your own classes (e.g. text-my-own-color
)
Both options are shown in the example below, run the code snippet to see a live demo.
.text-my-own-color {
color: #663300 !important; // Define your own color in your CSS
}
.text-my-own-color:hover, .text-my-own-color:active {
color: #664D33 !important; // Define your own color's darkening/lightening in your CSS
}
_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<div class="navbar-collapse">
<ul class="nav pull-right">
<!-- Bootstrap's color utility class -->
<li class="active"><a class="text-success" href="#">? ???</a></li>
<!-- Bootstrap's color utility class -->
<li><a class="text-danger" href="#">??? ??? ????????</a></li>
<!-- Bootstrap's color utility class -->
<li><a class="text-warning" href="#">????</a></li>
<!-- Custom color utility class -->
<li><a class="text-my-own-color" href="#">????????</a></li>
</ul>
</div>
_x000D_
Initializing a vector having struct, class or Union can be done this way
std::vector<SomeStruct> someStructVect(length);
memset(someStructVect.data(), 0, sizeof(SomeStruct)*length);
Recently I had to migrate some images from Docker registry (docker.mycompany.com) to Artifactory (docker.artifactory.mycompany.com)
docker pull docker.mycompany.com/something/redis:4.0.10
docker tag docker.mycompany.com/something/redis:4.0.10 docker.artifactory.mycompany.com/something/redis:4.0.10
docker push docker.artifactory.mycompany.com/something/redis:4.0.10
There's an easier way than the other answers that doesn't require you to name the resource explicitly or worry about exceptions with package names. It also works if you have used a string directly instead of a resource.
Just do:
public static String getApplicationName(Context context) {
ApplicationInfo applicationInfo = context.getApplicationInfo();
int stringId = applicationInfo.labelRes;
return stringId == 0 ? applicationInfo.nonLocalizedLabel.toString() : context.getString(stringId);
}
Hope this helps.
Edit
In light of the comment from Snicolas, I've modified the above so that it doesn't try to resolve the id if it is 0. Instead it uses, nonLocalizedLabel
as a backoff. No need for wrapping in try/catch.
$(window).mouseleave(function() {
alert('mouse leave');
});
You are returning or inflating layout twice, just check to see if you only inflate once.
To get the image URL, NOT binary content:
$url = "http://graph.facebook.com/$fbId/picture?type=$size";
$headers = get_headers($url, 1);
if( isset($headers['Location']) )
echo $headers['Location']; // string
else
echo "ERROR";
You must use your FACEBOOK ID, NOT USERNAME. You can get your facebook id there:
Correct Solution for AND/OR
Handlebars.registerHelper('and', function () {
// Get function args and remove last one (function name)
return Array.prototype.slice.call(arguments, 0, arguments.length - 1).every(Boolean);
});
Handlebars.registerHelper('or', function () {
// Get function args and remove last one (function name)
return Array.prototype.slice.call(arguments, 0, arguments.length - 1).some(Boolean);
});
Then call as follows
{{#if (or (eq questionType 'STARTTIME') (eq questionType 'ENDTIME') (..) ) }}
BTW: Note that the solution given here is incorrect, he's not subtracting the last argument which is the function name. https://stackoverflow.com/a/31632215/1005607
His original AND/OR was based on the full list of arguments
and: function () {
return Array.prototype.slice.call(arguments).every(Boolean);
},
or: function () {
return Array.prototype.slice.call(arguments).some(Boolean);
}
Can someone change that answer? I just wasted an hour trying to fix something in an answer recommended by 86 people. The fix is to filter out the last argument which is the function name. Array.prototype.slice.call(arguments, 0, arguments.length - 1)
Semicolon should be at the end of the class definition rather than after the name:
class WordGame
{
};
This would be the best and short answer for understanding Service Vs Factory Vs Provider
Source: https://groups.google.com/forum/#!msg/angular/56sdORWEoqg/HuZsOsMvKv4J
Here what ben says with a demo http://jsbin.com/ohamub/1/edit?html,output
"There are comments in the code illustrating the primary differences but I will expand on them a bit here. As a note, I am just getting my head around this so if I say anything that is wrong please let me know.
Services
Syntax: module.service( 'serviceName', function );
Result: When declaring serviceName as an injectable argument you will be provided the actual function reference passed to module.service.
Usage: Could be useful for sharing utility functions that are useful to invoke by simply appending () to the injected function reference. Could also be run with injectedArg.call( this ) or similar.
Factories
Syntax: module.factory( 'factoryName', function );
Result: When declaring factoryName as an injectable argument you will be provided the value that is returned by invoking the function reference passed to module.factory.
Usage: Could be useful for returning a 'class' function that can then be new'ed to create instances.
Providers
Syntax: module.provider( 'providerName', function );
Result: When declaring providerName as an injectable argument you will be provided the value that is returned by invoking the $get method of the function reference passed to module.provider.
Usage: Could be useful for returning a 'class' function that can then be new'ed to create instances but that requires some sort of configuration before being injected. Perhaps useful for classes that are reusable across projects? Still kind of hazy on this one." Ben
std::hex
is defined in <ios>
which is included by <iostream>
. But to use things like std::setprecision/std::setw/std::setfill
/etc you have to include <iomanip>
.
Make #site_nav_global_primary
positioned as fixed and set width to 100 % and desired height.
I had the same issue and this piece of code worked out for me.
names(data)[names(data) == "oldVariableName"] <- "newVariableName"
In short, this code does the following:
names(data)
looks into all the names in the dataframe (data
)
[names(data) == oldVariableName]
extracts the variable name (oldVariableName
) you want to get renamed and <- "newVariableName"
assigns the new variable name.
Google has this as a top result for For those who need to find a node with certain text. By way of update, a nodelist is now iterable in modern browsers without having to convert it to an array.
The solution can use forEach like so.
var elList = document.querySelectorAll(".some .selector");
elList.forEach(function(el) {
if (el.innerHTML.indexOf("needle") !== -1) {
// Do what you like with el
// The needle is case sensitive
}
});
This worked for me to do a find/replace text inside a nodelist when a normal selector could not choose just one node so I had to filter each node one by one to check it for the needle.
Something else to consider when this type of error is encountered:
I was running into this error message and found this post helpful. Turns out in my case I had overridden an __init__()
where there was object inheritance.
The inherited example is rather long, so I'll skip to a more simple example that doesn't use inheritance:
class MyBadInitClass:
def ___init__(self, name):
self.name = name
def name_foo(self, arg):
print(self)
print(arg)
print("My name is", self.name)
class MyNewClass:
def new_foo(self, arg):
print(self)
print(arg)
my_new_object = MyNewClass()
my_new_object.new_foo("NewFoo")
my_bad_init_object = MyBadInitClass(name="Test Name")
my_bad_init_object.name_foo("name foo")
Result is:
<__main__.MyNewClass object at 0x033C48D0>
NewFoo
Traceback (most recent call last):
File "C:/Users/Orange/PycharmProjects/Chapter9/bad_init_example.py", line 41, in <module>
my_bad_init_object = MyBadInitClass(name="Test Name")
TypeError: object() takes no parameters
PyCharm didn't catch this typo. Nor did Notepad++ (other editors/IDE's might).
Granted, this is a "takes no parameters" TypeError, it isn't much different than "got two" when expecting one, in terms of object initialization in Python.
Addressing the topic: An overloading initializer will be used if syntactically correct, but if not it will be ignored and the built-in used instead. The object won't expect/handle this and the error is thrown.
In the case of the sytax error: The fix is simple, just edit the custom init statement:
def __init__(self, name):
self.name = name
Not sure if I understood correctly but here is snippet that I use to open links from Bootstrap tab menu:
<ul class="nav nav-tabs">
<li class="active"><a href="#foo" data-toggle="tab">Foo</a></li>
<li><a href="#bar" data-toggle="tab">Bar</a></li>
<li><a href="baz.html" class="external">Baz</a></li>
</ul>
<div class="tab-content">
<div class="tab-pane active" id="foo">Foo</div>
<div class="tab-pane" id="bar">Bar</div>
</div>
$('.nav a:not(".external")').click(function (e) {
e.preventDefault()
$(this).tab('show')
})
ZonedDateTime.parse(
"Jun 13 2003 23:11:52.454 UTC" ,
DateTimeFormatter.ofPattern ( "MMM d uuuu HH:mm:ss.SSS z" )
)
.toInstant()
.toEpochMilli()
1055545912454
This Answer expands on the Answer by Lockni.
DateTimeFormatter
First define a formatting pattern to match your input string by creating a DateTimeFormatter
object.
String input = "Jun 13 2003 23:11:52.454 UTC";
DateTimeFormatter f = DateTimeFormatter.ofPattern ( "MMM d uuuu HH:mm:ss.SSS z" );
ZonedDateTime
Parse the string as a ZonedDateTime
. You can think of that class as: ( Instant
+ ZoneId
).
ZonedDateTime zdt = ZonedDateTime.parse ( "Jun 13 2003 23:11:52.454 UTC" , f );
zdt.toString(): 2003-06-13T23:11:52.454Z[UTC]
I do not recommend tracking date-time values as a count-from-epoch. Doing so makes debugging tricky as humans cannot discern a meaningful date-time from a number so invalid/unexpected values may slip by. Also such counts are ambiguous, in granularity (whole seconds, milli, micro, nano, etc.) and in epoch (at least two dozen in by various computer systems).
But if you insist you can get a count of milliseconds from the epoch of first moment of 1970 in UTC (1970-01-01T00:00:00
) through the Instant
class. Be aware this means data-loss as you are truncating any nanoseconds to milliseconds.
Instant instant = zdt.toInstant ();
instant.toString(): 2003-06-13T23:11:52.454Z
long millisSinceEpoch = instant.toEpochMilli() ;
1055545912454
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
NOTE: this will pause your whole thread, not just the one method.
Make a call to sleep/wait/halt for 1000 ms just before calling your method?
Sleep(1000); // does nothing the next 1000 mSek
Methodcall(params); // now do the real thing
Edit: The above answer applies to the general question "How can I delay a method call for 1 second?", which was the question asked at the time of the answer (infact the answer was given within 7 minutes of the original question :-)). No Info was given about the language at that time, so kindly stop bitching about the proper way of using sleep i XCode og the lack of classes...
Default: 5672, the manual has the answer. It's defined in the RABBITMQ_NODE_PORT
variable.
https://www.rabbitmq.com/configure.html#define-environment-variables
The number might be differently if changed by someone in the rabbitmq configuration file:
vi /etc/rabbitmq/rabbitmq-env.conf
Ask the computer to tell you:
sudo nmap -p 1-65535 localhost
Starting Nmap 5.51 ( http://nmap.org ) at 2014-09-19 13:50 EDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00041s latency).
PORT STATE SERVICE
443/tcp open https
5672/tcp open amqp
15672/tcp open unknown
35102/tcp open unknown
59440/tcp open unknown
Oh look, 5672, and 15672
Use netstat:
netstat -lntu
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:55672 0.0.0.0:* LISTEN
tcp 0 0 :::5672 :::* LISTEN
Oh look 5672.
use lsof:
eric@dev ~$ sudo lsof -i | grep beam
beam.smp 21216 rabbitmq 17u IPv4 33148214 0t0 TCP *:55672 (LISTEN)
beam.smp 21216 rabbitmq 18u IPv4 33148219 0t0 TCP *:15672 (LISTEN)
use nmap from a different machine, find out if 5672 is open:
sudo nmap -p 5672 10.0.1.71
Starting Nmap 5.51 ( http://nmap.org ) at 2014-09-19 13:19 EDT
Nmap scan report for 10.0.1.71
Host is up (0.00011s latency).
PORT STATE SERVICE
5672/tcp open amqp
MAC Address: 0A:40:0E:8C:75:6C (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 0.13 seconds
Try to connect to a port manually with telnet, 5671 is CLOSED:
telnet localhost 5671
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
Try to connect to a port manually with telnet, 5672 is OPEN:
telnet localhost 5672
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Check your firewall:
sudo cat /etc/sysconfig/iptables
It should tell you what ports are made open:
-A INPUT -p tcp -m tcp --dport 5672 -j ACCEPT
Reapply your firewall:
sudo service iptables restart
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: [ OK ]
You can also use jq to track down the array within the returned json and then pipe that in to a second jq
call to get its length. Suppose it was in a property called records
, like {"records":[...]}
.
$ curl https://my-source-of-json.com/list | jq -r '.records' | jq length
2
$
The best way to set/get the value of a textarea is the .val()
, .value
method.
.text()
internally uses the .textContent
(or .innerText
for IE) method to get the contents of a <textarea>
. The following test cases illustrate how text()
and .val()
relate to each other:
var t = '<textarea>';
console.log($(t).text('test').val()); // Prints test
console.log($(t).val('too').text('test').val()); // Prints too
console.log($(t).val('too').text()); // Prints nothing
console.log($(t).text('test').val('too').val()); // Prints too
console.log($(t).text('test').val('too').text()); // Prints test
The value
property, used by .val()
always shows the current visible value, whereas text()
's return value can be wrong.
In SQL Management Studio, go to Security -> Logins and double click your Login. Choose Server Roles from the left column, and verify that sysadmin is checked.
In my case, I was logged in on an account without that privilege.
HTH!
I was running into the same problem, here is how I got it working..
open terminal:
mkdir testExpress
cd testExpress
npm install request
or
sudo npm install -g request // If you would like to globally install.
now don't use
node app.js
or node test.js
, you will run into this problem doing so. You can also print the problem that is being cause by using this command.. "node -p app.js"
The above command to start nodeJs has been deprecated. Instead use
npm start
You should see this..
[email protected] start /Users/{username}/testExpress
node ./bin/www
Open your web browser and check for localhost:3000
You should see Express install (Welcome to Express)
I'm working on this right now as well. You should also add a datetime of the comment. You'll need this later when you want to sort by most recent.
Here are some of the db fields i'm using.
id (auto incremented)
name
email
text
datetime
approved
I find it easiest to understand move semantics with example code. Let's start with a very simple string class which only holds a pointer to a heap-allocated block of memory:
#include <cstring>
#include <algorithm>
class string
{
char* data;
public:
string(const char* p)
{
size_t size = std::strlen(p) + 1;
data = new char[size];
std::memcpy(data, p, size);
}
Since we chose to manage the memory ourselves, we need to follow the rule of three. I am going to defer writing the assignment operator and only implement the destructor and the copy constructor for now:
~string()
{
delete[] data;
}
string(const string& that)
{
size_t size = std::strlen(that.data) + 1;
data = new char[size];
std::memcpy(data, that.data, size);
}
The copy constructor defines what it means to copy string objects. The parameter const string& that
binds to all expressions of type string which allows you to make copies in the following examples:
string a(x); // Line 1
string b(x + y); // Line 2
string c(some_function_returning_a_string()); // Line 3
Now comes the key insight into move semantics. Note that only in the first line where we copy x
is this deep copy really necessary, because we might want to inspect x
later and would be very surprised if x
had changed somehow. Did you notice how I just said x
three times (four times if you include this sentence) and meant the exact same object every time? We call expressions such as x
"lvalues".
The arguments in lines 2 and 3 are not lvalues, but rvalues, because the underlying string objects have no names, so the client has no way to inspect them again at a later point in time.
rvalues denote temporary objects which are destroyed at the next semicolon (to be more precise: at the end of the full-expression that lexically contains the rvalue). This is important because during the initialization of b
and c
, we could do whatever we wanted with the source string, and the client couldn't tell a difference!
C++0x introduces a new mechanism called "rvalue reference" which, among other things, allows us to detect rvalue arguments via function overloading. All we have to do is write a constructor with an rvalue reference parameter. Inside that constructor we can do anything we want with the source, as long as we leave it in some valid state:
string(string&& that) // string&& is an rvalue reference to a string
{
data = that.data;
that.data = nullptr;
}
What have we done here? Instead of deeply copying the heap data, we have just copied the pointer and then set the original pointer to null (to prevent 'delete[]' from source object's destructor from releasing our 'just stolen data'). In effect, we have "stolen" the data that originally belonged to the source string. Again, the key insight is that under no circumstance could the client detect that the source had been modified. Since we don't really do a copy here, we call this constructor a "move constructor". Its job is to move resources from one object to another instead of copying them.
Congratulations, you now understand the basics of move semantics! Let's continue by implementing the assignment operator. If you're unfamiliar with the copy and swap idiom, learn it and come back, because it's an awesome C++ idiom related to exception safety.
string& operator=(string that)
{
std::swap(data, that.data);
return *this;
}
};
Huh, that's it? "Where's the rvalue reference?" you might ask. "We don't need it here!" is my answer :)
Note that we pass the parameter that
by value, so that
has to be initialized just like any other string object. Exactly how is that
going to be initialized? In the olden days of C++98, the answer would have been "by the copy constructor". In C++0x, the compiler chooses between the copy constructor and the move constructor based on whether the argument to the assignment operator is an lvalue or an rvalue.
So if you say a = b
, the copy constructor will initialize that
(because the expression b
is an lvalue), and the assignment operator swaps the contents with a freshly created, deep copy. That is the very definition of the copy and swap idiom -- make a copy, swap the contents with the copy, and then get rid of the copy by leaving the scope. Nothing new here.
But if you say a = x + y
, the move constructor will initialize that
(because the expression x + y
is an rvalue), so there is no deep copy involved, only an efficient move.
that
is still an independent object from the argument, but its construction was trivial,
since the heap data didn't have to be copied, just moved. It wasn't necessary to copy it because x + y
is an rvalue, and again, it is okay to move from string objects denoted by rvalues.
To summarize, the copy constructor makes a deep copy, because the source must remain untouched. The move constructor, on the other hand, can just copy the pointer and then set the pointer in the source to null. It is okay to "nullify" the source object in this manner, because the client has no way of inspecting the object again.
I hope this example got the main point across. There is a lot more to rvalue references and move semantics which I intentionally left out to keep it simple. If you want more details please see my supplementary answer.
You can use indexOf(). Like:
var Color = ["blue", "black", "brown", "gold"];
var a = Color.indexOf("brown");
alert(a);
The indexOf() method searches the array for the specified item, and returns its position. And return -1 if the item is not found.
If you want to search from end to start, use the lastIndexOf() method:
var Color = ["blue", "black", "brown", "gold"];
var a = Color.lastIndexOf("brown");
alert(a);
The search will start at the specified position, or at the end if no start position is specified, and end the search at the beginning of the array.
Returns -1 if the item is not found.
I don't think it's necessary to use semi-quotes around the variables, try:
curl -XPOST 'http://localhost/Service' -d "path=%2fxyz%2fpqr%2ftest%2f&fileName=1.doc"
%2f
is the escape code for a /
.
http://www.december.com/html/spec/esccodes.html
Also, do you need to specify a port? ( just checking :) )
import math
def dotproduct(v1, v2):
return sum((a*b) for a, b in zip(v1, v2))
def length(v):
return math.sqrt(dotproduct(v, v))
def angle(v1, v2):
return math.acos(dotproduct(v1, v2) / (length(v1) * length(v2)))
Note: this will fail when the vectors have either the same or the opposite direction. The correct implementation is here: https://stackoverflow.com/a/13849249/71522
This solution worked for me:
<body onload="setTimeout(function() { document.myform.submit() }, 5000)">
<form action=TripRecorder name="myform">
<textarea id="result1" name="res1" value="str1" cols="20" rows="1" ></textarea> <br> <br/>
<textarea id="result2" name="res2" value="str2" cols="20" rows="1" ></textarea>
</form>
</body>
From Django docs:
The include tag should be considered as an implementation of "render this subtemplate and include the HTML", not as "parse this subtemplate and include its contents as if it were part of the parent". This means that there is no shared state between included templates -- each include is a completely independent rendering process.
So Django doesn't grab any blocks from your commondata.html and it doesn't know what to do with rendered html outside blocks.
May be this will help some one. I have my proxy setup in python script but keep getting the error mentioned in the question.
Below is the piece of block which will take my username and password as a constant in the beginning.
if (use_proxy):
proxy = req.ProxyHandler({'https': proxy_url})
auth = req.HTTPBasicAuthHandler()
opener = req.build_opener(proxy, auth, req.HTTPHandler)
req.install_opener(opener)
If you are using corporate laptop and if you did not connect to Direct Access or office VPN then the above block will throw error. All you need to do is to connect to your org VPN and then execute your python script.
Thanks
That's because the return type for [data bytes] is a void* c-style array, not a Uint8 (which is what Byte is a typedef for).
The error is because you are trying to set an allocated array when the return is a pointer type, what you are looking for is the getBytes:length: call which would look like:
[data getBytes:&byteData length:len];
Which fills the array you have allocated with data from the NSData object.
A> a typdef aids in the meaning and documentation of a program by allowing creation of more meaningful synonyms for data types. In addition, they help parameterize a program against portability problems (K&R, pg147, C prog lang).
B> a structure defines a type. Structs allows convenient grouping of a collection of vars for convenience of handling (K&R, pg127, C prog lang.) as a single unit
C> typedef'ing a struct is explained in A above.
D> To me, structs are custom types or containers or collections or namespaces or complex types, whereas a typdef is just a means to create more nicknames.
Look into twitter cards.
The trick is not in the button but rather the page you are sharing. Twitter Cards pull the image from the meta tags similar to facebook
sharing.
Example:
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:site" content="@site_username">
<meta name="twitter:title" content="Top 10 Things Ever">
<meta name="twitter:description" content="Up than 200 characters.">
<meta name="twitter:creator" content="@creator_username">
<meta name="twitter:image" content="http://placekitten.com/250/250">
<meta name="twitter:domain" content="YourDomain.com">
The first parentheses are for, if you will, order of operations. The 'result' of the set of parentheses surrounding the function definition is the function itself which, indeed, the second set of parentheses executes.
As to why it's useful, I'm not enough of a JavaScript wizard to have any idea. :P
Another easy way of doing this. Make a "input type file" tag in html and hide it. Then click a button and format it according to need. After this use javascript/jquery to programmatically click the input tag when the button is clicked.
HTML :-
<input id="file" type="file" style="display: none;">
<button id="button">Add file</button>
JavaScript :-
document.getElementById('button').addEventListener("click", function() {
document.getElementById('file').click();
});
jQuery :-
$('#button').click(function(){
$('#file').click();
});
CSS :-
#button
{
background-color: blue;
color: white;
}
Here is a working JS fiddle for the same :- http://jsfiddle.net/32na3/
You can also do the following if you want to preserve the action signature as returning User:
public User GetUser(int userId, DateTime lastModifiedAtClient)
If you want to return something other than 200
then you throw an HttpResponseException
in your action and pass in the HttpResponseMessage
you want to send to the client.
This solution caters for http, https and the other normal url type special characters :
import re
def remove_urls (vTEXT):
vTEXT = re.sub(r'(https|http)?:\/\/(\w|\.|\/|\?|\=|\&|\%)*\b', '', vTEXT, flags=re.MULTILINE)
return(vTEXT)
print( remove_urls("this is a test https://sdfs.sdfsdf.com/sdfsdf/sdfsdf/sd/sdfsdfs?bob=%20tree&jef=man lets see this too https://sdfsdf.fdf.com/sdf/f end"))
In IIS Manager, right click on the site and go to Manage Web Site -> Advanced Settings. Under Connection Limits option, you should see Connection Time-out.
Combination of Mritunjay and Bartu's answers are full answer to this question. I copying the full example.
<input class="form-control" type="email" required="" placeholder="username"
oninvalid="this.setCustomValidity('Please Enter valid email')"
oninput="setCustomValidity('')"></input>
Here,
this.setCustomValidity('Please Enter valid email')" - Display the custom message on invalidated of the field
oninput="setCustomValidity('')" - Remove the invalidate message on validated filed.
This answer might be useful:
Regex (grep) for multi-line search needed
To find recursively you can use flags -R (recursive) and --include (GLOB pattern). See:
Use grep --exclude/--include syntax to not grep through certain files
I have searched for this a few minutes and i couldn't find any working code.
But now i finaly did it ! Take a look:
<div class="input-group" id="unified-inputs">
<input type="text" class="form-control" placeholder="MinVal" />
<input type="text" class="form-control" placeholder="MaxVal" />
</div>
And css
#unified-inputs.input-group { width: 100%; }
#unified-inputs.input-group input { width: 50% !important; }
#unified-inputs.input-group input:last-of-type { border-left: 0; }
adbd
has a compilation flag/option to enable root access: ALLOW_ADBD_ROOT=1
.
Up to Android 9: If adbd
on your device is compiled without that flag, it will always drop privileges when starting up and thus "adb root" will not help at all.
I had to patch the calls to setuid()
, setgid()
, setgroups()
and the capability drops out of the binary myself to get a permanently rooted adbd on my ebook reader.
With Android 10 this changed; when the phone/tablet is unlocked (ro.boot.verifiedbootstate == "orange"
), then adb root mode is possible in any case.
Here is code for Multiple Client to one Server Working Fine .. Give it a try :)
Server.java:
import java.io.DataInputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;
class Multi extends Thread{
private Socket s=null;
DataInputStream infromClient;
Multi() throws IOException{
}
Multi(Socket s) throws IOException{
this.s=s;
infromClient = new DataInputStream(s.getInputStream());
}
public void run(){
String SQL=new String();
try {
SQL = infromClient.readUTF();
} catch (IOException ex) {
Logger.getLogger(Multi.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println("Query: " + SQL);
try {
System.out.println("Socket Closing");
s.close();
} catch (IOException ex) {
Logger.getLogger(Multi.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public class Server {
public static void main(String args[]) throws IOException,
InterruptedException{
while(true){
ServerSocket ss=new ServerSocket(11111);
System.out.println("Server is Awaiting");
Socket s=ss.accept();
Multi t=new Multi(s);
t.start();
Thread.sleep(2000);
ss.close();
}
}
}
Client1.java:
import java.io.DataOutputStream;
import java.io.ObjectInputStream;
import java.net.Socket;
public class client1 {
public static void main(String[] arg) {
try {
Socket socketConnection = new Socket("127.0.0.1", 11111);
//QUERY PASSING
DataOutputStream outToServer = new DataOutputStream(socketConnection.getOutputStream());
String SQL="I am client 1";
outToServer.writeUTF(SQL);
} catch (Exception e) {System.out.println(e); }
}
}
Client2.java
import java.io.DataOutputStream;
import java.net.Socket;
public class client2 {
public static void main(String[] arg) {
try {
Socket socketConnection = new Socket("127.0.0.1", 11111);
//QUERY PASSING
DataOutputStream outToServer = new DataOutputStream(socketConnection.getOutputStream());
String SQL="I am Client 2";
outToServer.writeUTF(SQL);
} catch (Exception e) {System.out.println(e); }
}
}
I construct my own class, and then call it from my activity, overriding small methods like showAtLocation. I've found its easier when I have 4 to 5 popups in my activity to do this.
public class ToggleValues implements OnClickListener{
private View pView;
private LayoutInflater inflater;
private PopupWindow pop;
private Button one, two, three, four, five, six, seven, eight, nine, blank;
private ImageButton eraser;
private int selected = 1;
private Animation appear;
public ToggleValues(int id, Context c, int screenHeight){
inflater = (LayoutInflater) c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
pop = new PopupWindow(inflater.inflate(id, null, false), 265, (int)(screenHeight * 0.45), true);
pop.setBackgroundDrawable(c.getResources().getDrawable(R.drawable.alpha_0));
pView = pop.getContentView();
appear = AnimationUtils.loadAnimation(c, R.anim.appear);
one = (Button) pView.findViewById(R.id.one);
one.setOnClickListener(this);
two = (Button) pView.findViewById(R.id.two);
two.setOnClickListener(this);
three = (Button) pView.findViewById(R.id.three);
three.setOnClickListener(this);
four = (Button) pView.findViewById(R.id.four);
four.setOnClickListener(this);
five = (Button) pView.findViewById(R.id.five);
five.setOnClickListener(this);
six = (Button) pView.findViewById(R.id.six);
six.setOnClickListener(this);
seven = (Button) pView.findViewById(R.id.seven);
seven.setOnClickListener(this);
eight = (Button) pView.findViewById(R.id.eight);
eight.setOnClickListener(this);
nine = (Button) pView.findViewById(R.id.nine);
nine.setOnClickListener(this);
blank = (Button) pView.findViewById(R.id.blank_Selection);
blank.setOnClickListener(this);
eraser = (ImageButton) pView.findViewById(R.id.eraser);
eraser.setOnClickListener(this);
}
public void showAtLocation(View v) {
pop.showAtLocation(v, Gravity.BOTTOM | Gravity.LEFT, 40, 40);
pView.startAnimation(appear);
}
public void dismiss(){
pop.dismiss();
}
public boolean isShowing() {
if(pop.isShowing()){
return true;
}else{
return false;
}
}
public int getSelected(){
return selected;
}
public void onClick(View arg0) {
if(arg0 == one){
Sudo.setToggleNum(1);
}else if(arg0 == two){
Sudo.setToggleNum(2);
}else if(arg0 == three){
Sudo.setToggleNum(3);
}else if(arg0 == four){
Sudo.setToggleNum(4);
}else if(arg0 == five){
Sudo.setToggleNum(5);
}else if(arg0 == six){
Sudo.setToggleNum(6);
}else if(arg0 == seven){
Sudo.setToggleNum(7);
}else if(arg0 == eight){
Sudo.setToggleNum(8);
}else if(arg0 == nine){
Sudo.setToggleNum(9);
}else if(arg0 == blank){
Sudo.setToggleNum(0);
}else if(arg0 == eraser){
Sudo.setToggleNum(-1);
}
this.dismiss();
}
}
This can also happend when the client needs to present a certificate. After the server lists the certificate chain, the following can happen:
3. Certificate Request The server will issue a certificate request from the client. The request will list all of the certificates the server accepts.
*** CertificateRequest
Cert Types: RSA
Cert Authorities:
<CN=blah, OU=blah, O=blah, L=blah, ST=blah, C=blah>
<CN=yadda, DC=yadda, DC=yadda>
<CN=moreblah, OU=moreblah, O=moreblah, C=moreblah>
<CN=moreyada, OU=moreyada, O=moreyada, C=moreyada>
... the rest of the request
*** ServerHelloDone
4. Client Certificate Chain This is the certificate the client is sending to the server.
*** Certificate chain
chain [0] = [
[
Version: V3
Subject: EMAILADDRESS=client's email, CN=client, OU=client's ou, O=client's Org, L=client's location, ST=client's state, C=client's Country
Signature Algorithm: SHA1withRSA, OID = 1.2.840.113549.1.1.5
... the rest of the certificate
*** ClientKeyExchange, RSA PreMasterSecret, TLSv1
... key exchange info
If there isn't a certificate in the chain and the server requires one, you'll get the handshake error here. A likely cause is the path to your certificate wasn't found.
5. Certificate Verify The client asks the server to verify the certificate
*** CertificateVerify
... payload of verify check
This step will only happen if you are sending a certificate.
6. Finished The server will respond with a verify response
*** Finished
verify_data: { 345, ... }
My two cents: came across the same error message in RHEL7.3 while running the openssl command with root CA certificate. The reason being, while downloading the certificate from AD server, Encoding was selected as DER instead of Base64. Once the proper version of encoding was selected for the new certificate download, error was resolved
Hope this helps for new users :-)
This error also occurs if you are trying to write a unit test case in angular using jasmine.
The basic concept of this error is to import FormsModule
. Thus, in the file for unit tests, we add imports Section and place FormsModule in that file under
TestBed.configureTestingModule
For eg:
TestBed.configureTestingModule({
declarations: [ XYZComponent ],
**imports: [FormsModule]**,
}).compileComponents();
Right now there is no view:clear command. For laravel 4 this can probably help you: https://gist.github.com/cjonstrup/8228165
Disabling caching can be done by skipping blade. View caching is done because blade compiling each time is a waste of time.
To address specific scenario in question:
@Test
public void Test1() {
}
@Test (dependsOnMethods={"Test1"})
public void Test2() {
}
@Test (dependsOnMethods={"Test2"})
public void Test3() {
}
I know I'm late to the game, but you can just do ?id=14&like=like
by using http build query as follows:
http_build_query(array_merge($_GET, array("like"=>"like")))
Whatever GET parameters you had will still be there and if like
was a parameter before it will be overwritten, otherwise it will be included at the end.
In my case it was pretty much what Mayank Shukla's top answer says. The only detail was that my state was lacking completely the property I was defining.
For example, if you have this state:
state = {
"a" : "A",
"b" : "B",
}
If you're expanding your code, you might want to add a new prop so, someplace else in your code you might create a new property c
whose value is not only undefined on the component's state but the property itself is undefined.
To solve this just make sure to add c
into your state and give it a proper initial value.
e.g.,
state = {
"a" : "A",
"b" : "B",
"c" : "C", // added and initialized property!
}
Hope I was able to explain my edge case.
As far as I know, there are 2 standard ways you can do that.
1. @Input
Whenever the data in the parent changes, the child gets notified about this in the ngOnChanges method. The child can act on it. This is the standard way of interacting with a child.
Parent-Component
public inputToChild: Object;
Parent-HTML
<child [data]="inputToChild"> </child>
Child-Component: @Input() data;
ngOnChanges(changes: { [property: string]: SimpleChange }){
// Extract changes to the input property by its name
let change: SimpleChange = changes['data'];
// Whenever the data in the parent changes, this method gets triggered. You
// can act on the changes here. You will have both the previous value and the
// current value here.
}
Creating a service and using an observable in the shared service. The child subscribes to it and whenever there is a change, the child will be notified. This is also a popular method. When you want to send something other than the data you pass as the input, this can be used.
SharedService
subject: Subject<Object>;
Parent-Component
constructor(sharedService: SharedService)
this.sharedService.subject.next(data);
Child-Component
constructor(sharedService: SharedService)
this.sharedService.subject.subscribe((data)=>{
// Whenever the parent emits using the next method, you can receive the data
in here and act on it.})
For reading "plain" CSV files in Java, there is a library called OpenCSV, available here: http://opencsv.sourceforge.net/
In Chrome, For "Selenium IDE", I was also struggling that it doesn't pause. It will pause, if you give as below:
This will pause for 10 seconds.
now 2020, i am face to same question, but for this old question, there are so many new answer, just list some of it:
plugins: [
new HtmlWebpackPlugin({
// 1. title is the parameter, you can use in ejs template
templateParameters:{
title: JSON.stringify(someting: 'something'),
},
}),
//2. BUILT_AT is a parameter too. can use it.
new webpack.DefinePlugin({
BUILT_AT: webpack.DefinePlugin.runtimeValue(Date.now,"some"),
}),
//3. for webpack5, you can use global variable: __webpack_hash__
//new webpack.ExtendedAPIPlugin()
],
//4. this is not variable, this is module, so use 'import tt' to use it.
externals: {
'ex_title': JSON.stringify({
tt: 'eitentitle',
})
},
the 4 ways only basic, there are even more ways that i believe. but i think maybe this 4ways is the most simple.
Object doesn't support this property or method.
Think of it like if anything after the dot is called on an object. It's like a chain.
An object is a class instance. A class instance supports some properties defined in that class type definition. It exposes whatever intelli-sense in VBE tells you (there are some hidden members but it's not related to this). So after each dot .
you get intelli-sense (that white dropdown) trying to help you pick the correct action.
(you can start either way - front to back or back to front, once you understand how this works you'll be able to identify where the problem occurs)
Type this much anywhere in your code area
Dim a As Worksheets
a.
you get help from VBE, it's a little dropdown called Intelli-sense
It lists all available actions that particular object exposes to any user. You can't see the .Selection
member of the Worksheets()
class. That's what the error tells you exactly.
Object doesn't support this property or method.
If you look at the example on MSDN
Worksheets("GRA").Activate
iAreaCount = Selection.Areas.Count
It activates
the sheet first then calls the Selection...
it's not connected together because Selection
is not a member of Worksheets()
class. Simply, you can't prefix the Selection
What about
Sub DisplayColumnCount()
Dim iAreaCount As Integer
Dim i As Integer
Worksheets("GRA").Activate
iAreaCount = Selection.Areas.Count
If iAreaCount <= 1 Then
MsgBox "The selection contains " & Selection.Columns.Count & " columns."
Else
For i = 1 To iAreaCount
MsgBox "Area " & i & " of the selection contains " & _
Selection.Areas(i).Columns.Count & " columns."
Next i
End If
End Sub
from HERE
You could insert something like this:
personPlay = "B";
while (!personPlay.equals("R") && !personPlay.equals("P") && !personPlay.equals("S")) {
//Get player's play from input-- note that this is
// stored as a string
System.out.println("Enter your play: ");
personPlay = scan.next();
//Make player's play uppercase for ease of comparison
personPlay = personPlay.toUpperCase();
if (!personPlay.equals("R") && !personPlay.equals("P") && !personPlay.equals("S"))
System.out.println("Invalid move. Try again.");
}
Connect with your mongodb instance from local system
It ll let you know all connected clients and their details
db.currentOp(true)
As a variant
delete array[array.indexOf(item)];
If you know nothing about delete
operator, DON'T use this.
You can use the following code snippet:
myTextBox.SelectionStart = myTextBox.Text.Length;
myTextBox.ScrollToCaret();
which will automatically scroll to the end.
You can have multiple CTE
s in one query, as well as reuse a CTE
:
WITH cte1 AS
(
SELECT 1 AS id
),
cte2 AS
(
SELECT 2 AS id
)
SELECT *
FROM cte1
UNION ALL
SELECT *
FROM cte2
UNION ALL
SELECT *
FROM cte1
Note, however, that SQL Server
may reevaluate the CTE
each time it is accessed, so if you are using values like RAND()
, NEWID()
etc., they may change between the CTE
calls.
I know this may seem obvious but I also had to use a single quote around the u/n and p/w before it worked
mongo admin -u 'user' -p 'password'
While this is still a part of Docker that needs some work, you should put the volume in the Dockerfile with the VOLUME instruction so you don't need to copy the volumes from another container.
That will make your containers less inter-dependent and you don't have to worry about the deletion of one container affecting another.
This would also work I believe:
$('#results').on('click', '.item', function () {
var NestId = $(this).data('id');
var url = '@Html.Raw(Url.Action("Artists", new { NestId = @NestId }))';
window.location.href = url;
})
The obligatory LINQ one[1]-liner:
var max = anArray.Select((value, index) => new {value, index})
.OrderByDescending(vi => vi.value)
.First();
(The sorting is probably a performance hit over the other solutions.)
[1]: For given values of "one".
128M == 134217728
, the number you are seeing.
The memory limit is working fine. When it says it tried to allocate 32 bytes, that the amount requested by the last operation before failing.
Are you building any huge arrays or reading large text files? If so, remember to free any memory you don't need anymore, or break the task down into smaller steps.
David Goodger (in "Code Like a Pythonista" here) describes the PEP 8 recommendations as follows:
joined_lower
for functions, methods,
attributes, variables
joined_lower
or ALL_CAPS
for
constants
StudlyCaps
for classes
camelCase
only to conform to
pre-existing conventions
Depends on what your are doing.
If you have SPA (Single-Page Application) the you can use:
<input id="txtName" type="text" />
Otherwise using Html helpers is recommended, to get your controls bound with your model.
Given this route
app.get('/hi/:param1', function(req,res){} );
and given this URL
http://www.google.com/hi/there?qs1=you&qs2=tube
You will have:
req.query
{
qs1: 'you',
qs2: 'tube'
}
req.params
{
param1: 'there'
}
Firstly you need to setup a media streaming server. You can use Wowza, red5 or nginx-rtmp-module. Read their documentation and setup on OS you want. All the engine are support HLS (Http Live Stream protocol that was developed by Apple). You should read documentation for config. Example with nginx-rtmp-module:
rtmp {
server {
listen 1935; # Listen on standard RTMP port
chunk_size 4000;
application show {
live on;
# Turn on HLS
hls on;
hls_path /mnt/hls/;
hls_fragment 3;
hls_playlist_length 60;
# disable consuming the stream from nginx as rtmp
deny play all;
}
}
}
server {
listen 8080;
location /hls {
# Disable cache
add_header Cache-Control no-cache;
# CORS setup
add_header 'Access-Control-Allow-Origin' '*' always;
add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
add_header 'Access-Control-Allow-Headers' 'Range';
# allow CORS preflight requests
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'Range';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain charset=UTF-8';
add_header 'Content-Length' 0;
return 204;
}
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
root /mnt/;
}
}
After server was setup and configuration successful. you must use some rtmp encoder software (OBS, wirecast ...) for start streaming like youtube or twitchtv.
In client side (browser in your case) you can use Videojs or JWplayer to play video for end user. You can do something like below for Videojs:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Live Streaming</title>
<link href="//vjs.zencdn.net/5.8/video-js.min.css" rel="stylesheet">
<script src="//vjs.zencdn.net/5.8/video.min.js"></script>
</head>
<body>
<video id="player" class="video-js vjs-default-skin" height="360" width="640" controls preload="none">
<source src="http://localhost:8080/hls/stream.m3u8" type="application/x-mpegURL" />
</video>
<script>
var player = videojs('#player');
</script>
</body>
</html>
You don't need to add others plugin like flash (because we use HLS not rtmp). This player can work well cross browser with out flash.
For MySQL Workbench 8.0 navigate to:
Server > Data Import
A new tab called Administration - Data Import/Restore appears. There you can choose to import a Dump Project Folder or use a specific SQL file according to your needs. Then you must select a schema where the data will be imported to, or you have to click the New... button to type a name for the new schema.
Then you can select the database objects to be imported or just click the Start Import button in the lower right part of the tab area.
Having done that and if the import was successful, you'll need to update the Schema Navigator by clicking the arrow circle icon.
That's it!
For more detailed info, check the MySQL Workbench Manual: 6.5.2 SQL Data Export and Import Wizard
I think it can be used --
function jsLogs($data) {
$html = "";
$coll;
if (is_array($data) || is_object($data)) {
$coll = json_encode($data);
} else {
$coll = $data;
}
$html = "<script>console.log('PHP: ${coll}');</script>";
echo($html);
# exit();
}
# For String
jsLogs("testing string"); #PHP: testing string
# For Array
jsLogs(array("test1", "test2")); # PHP: ["test1","test2"]
# For Object
jsLogs(array("test1"=>array("subtest1", "subtest2"))); #PHP: {"test1":["subtest1","subtest2"]}
Guid guidId = Guid.Parse("xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx");
string guidValue = guidId.ToString("D"); //return with hyphens
In this case you need to go up to the <tr>
then use .next()
, like this:
$(obj).closest('tr').next().find('.class');
Or if there may be rows in-between without the .class
inside, you can use .nextAll()
, like this:
$(obj).closest('tr').nextAll(':has(.class):first').find('.class');
Assuming you're talking about US currency, you would want a Greedy Algorithm: http://en.wikipedia.org/wiki/Greedy_algorithm
In essence, you try all denominations from highest-to-lowest, taking as many coins as posible from each one until you've got nothing left.
For the general case see http://en.wikipedia.org/wiki/Change-making_problem, because you would want to use dynamic programming or linear programming to find the answer for arbitrary denominations where a greedy algorithm wouldn't work.
If you want a l10n answer do it this way. Example uses currency, but you don't need that. Intl library will need to be polyfilled if you have to support older browsers.
var value = "2,299.00";
var currencyId = "USD";
var nf = new Intl.NumberFormat(undefined, {style:'currency', currency: currencyId, minimumFractionDigits: 2});
value = nf.format(value.replace(/,/g, ""));
Karan Bhandari's answer is good, but the AccountController added in a project is very likely a Mvc.Controller
. To convert his answer for use in an ApiController change HttpContext.Current.GetOwinContext()
to Request.GetOwinContext()
and make sure you have added the following 2 using
statements:
using Microsoft.AspNet.Identity;
using Microsoft.AspNet.Identity.Owin;
I run into the same error maybe you have already imported the module by using only import datetime
so change form datetime import datetime
to only import datetime
. It worked for me after I changed it back.
Assuming that winrar.exe
is in the PATH
, then Runtime.exec
is capable of finding it, if it is not, you will need to supply the fully qualified path to it, for example, assuming winrar.exe
is installed in C:/Program Files/WinRAR
you would need to use something like...
p=r.exec("C:/Program Files/WinRAR/winrar x h:\\myjar.jar *.* h:\\new");
Personally, I would recommend that you use ProcessBuilder
as it has some additional configuration abilities amongst other things. Where possible, you should also separate your command and parameters into separate String
elements, it deals with things like spaces much better then a single String
variable, for example...
ProcessBuilder pb = new ProcessBuilder(
"C:/Program Files/WinRAR/winrar",
"x",
"myjar.jar",
"*.*",
"new");
pb.directory(new File("H:/"));
pb. redirectErrorStream(true);
Process p = pb.start();
Don't forget to read the contents of the InputStream
from the process, as failing to do so may stall the process
With the release of TypeScript 3.7, optional chaining (the ?
operator) is now officially available.
As such, you can simplify your expression to the following:
const data = change?.after?.data();
You may read more about it from that version's release notes, which cover other interesting features released on that version.
Run the following to install the latest stable release of TypeScript.
npm install typescript
That being said, Optional Chaining can be used alongside Nullish Coalescing to provide a fallback value when dealing with null
or undefined
values
const data = change?.after?.data() ?? someOtherData();
So, say you have your View with PartialView, which have to be updated by button click:
<div class="target">
@{ Html.RenderAction("UpdatePoints");}
</div>
<input class="button" value="update" />
There are some ways to do it. For example you may use jQuery:
<script type="text/javascript">
$(function(){
$('.button').on("click", function(){
$.post('@Url.Action("PostActionToUpdatePoints", "Home")').always(function(){
$('.target').load('/Home/UpdatePoints');
})
});
});
</script>
PostActionToUpdatePoints
is your Action
with [HttpPost]
attribute, which you use to update points
If you use logic in your action UpdatePoints() to update points, maybe you forgot to add [HttpPost] attribute to it:
[HttpPost]
public ActionResult UpdatePoints()
{
ViewBag.points = _Repository.Points;
return PartialView("UpdatePoints");
}
I'm using AS 3.2.1, and was about to try some of the plugins, but was hesitant realizing the plugins are able to monitor any data..
It's actually really simple doing it via the Terminal tab in AS:
adb tcpip 5555
adb connect 192.168.1.101
You can convert your date in many formats, for example :
CONVERT(NVARCHAR(10), DATE_OF_DAY, 103) => 15/09/2016
CONVERT(NVARCHAR(10), DATE_OF_DAY, 3) => 15/09/16
Syntaxe :
CONVERT('TheTypeYouWant', 'TheDateToConvert', 'TheCodeForFormating' * )
In your case, i've just converted and restrict size by nvarchar(6) like this :
CONVERT(NVARCHAR(6), DATE_OF_DAY, 112) => 201609
See more at : http://www.w3schools.com/sql/func_convert.asp
I prefer simplicity...
private void _InvokeNamespaceClassesStaticMethod(string namespaceName, string methodName, params object[] parameters) {
foreach(var _a in AppDomain.CurrentDomain.GetAssemblies()) {
foreach(var _t in _a.GetTypes()) {
try {
if((_t.Namespace == namespaceName) && _t.IsClass) _t.GetMethod(methodName, (BindingFlags.Static | BindingFlags.Public))?.Invoke(null, parameters);
} catch { }
}
}
}
Usage...
_InvokeNamespaceClassesStaticMethod("mySolution.Macros", "Run");
But in case you're looking for something a little more robust, including the handling of exceptions...
private InvokeNamespaceClassStaticMethodResult[] _InvokeNamespaceClassStaticMethod(string namespaceName, string methodName, bool throwExceptions, params object[] parameters) {
var results = new List<InvokeNamespaceClassStaticMethodResult>();
foreach(var _a in AppDomain.CurrentDomain.GetAssemblies()) {
foreach(var _t in _a.GetTypes()) {
if((_t.Namespace == namespaceName) && _t.IsClass) {
var method_t = _t.GetMethod(methodName, parameters.Select(_ => _.GetType()).ToArray());
if((method_t != null) && method_t.IsPublic && method_t.IsStatic) {
var details_t = new InvokeNamespaceClassStaticMethodResult();
details_t.Namespace = _t.Namespace;
details_t.Class = _t.Name;
details_t.Method = method_t.Name;
try {
if(method_t.ReturnType == typeof(void)) {
method_t.Invoke(null, parameters);
details_t.Void = true;
} else {
details_t.Return = method_t.Invoke(null, parameters);
}
} catch(Exception ex) {
if(throwExceptions) {
throw;
} else {
details_t.Exception = ex;
}
}
results.Add(details_t);
}
}
}
}
return results.ToArray();
}
private class InvokeNamespaceClassStaticMethodResult {
public string Namespace;
public string Class;
public string Method;
public object Return;
public bool Void;
public Exception Exception;
}
Usage is pretty much the same...
_InvokeNamespaceClassesStaticMethod("mySolution.Macros", "Run", false);
This is what i did, it works fine.
User.find({name:'Thava'}, null, {sort: { name : 1 }})
<script type="text/javascript">
function showDiv(toggle){
document.getElementById(toggle).style.display = 'block';
}
</script>
<input type="button" name="answer" onclick="showDiv('toggle')">Show</input>
<div id="toggle" style="display:none">Hello</div>
Based on MarcGravell's suggestion, I have constructed the following static method.The method generically assigns all matching properties from source object to target using FastMember
public static void DynamicPropertySet(object source, object target)
{
//SOURCE
var src_accessor = TypeAccessor.Create(source.GetType());
if (src_accessor == null)
{
throw new ApplicationException("Could not create accessor!");
}
var src_members = src_accessor.GetMembers();
if (src_members == null)
{
throw new ApplicationException("Could not fetch members!");
}
var src_class_members = src_members.Where(x => x.Type.IsClass && !x.Type.IsPrimitive);
var src_class_propNames = src_class_members.Select(x => x.Name);
var src_propNames = src_members.Except(src_class_members).Select(x => x.Name);
//TARGET
var trg_accessor = TypeAccessor.Create(target.GetType());
if (trg_accessor == null)
{
throw new ApplicationException("Could not create accessor!");
}
var trg_members = trg_accessor.GetMembers();
if (trg_members == null)
{
throw new ApplicationException("Could not create accessor!");
}
var trg_class_members = trg_members.Where(x => x.Type.IsClass && !x.Type.IsPrimitive);
var trg_class_propNames = trg_class_members.Select(x => x.Name);
var trg_propNames = trg_members.Except(trg_class_members).Select(x => x.Name);
var class_propNames = trg_class_propNames.Intersect(src_class_propNames);
var propNames = trg_propNames.Intersect(src_propNames);
foreach (var propName in propNames)
{
trg_accessor[target, propName] = src_accessor[source, propName];
}
foreach (var member in class_propNames)
{
var src = src_accessor[source, member];
var trg = trg_accessor[target, member];
if (src != null && trg != null)
{
DynamicPropertySet(src, trg);
}
}
}
I had trouble with the most popular answer (overthinking). It put AFolder in the \Server\MyFolder\AFolder and I wanted the contents of AFolder and below in MyFolder. This didn't work.
Copy-Item -Verbose -Path C:\MyFolder\AFolder -Destination \\Server\MyFolder -recurse -Force
Plus I needed to Filter and only copy *.config files.
This didn't work, with "\*" because it did not recurse
Copy-Item -Verbose -Path C:\MyFolder\AFolder\* -Filter *.config -Destination \\Server\MyFolder -recurse -Force
I ended up lopping off the beginning of the path string, to get the childPath relative to where I was recursing from. This works for the use-case in question and went down many subdirectories, which some other solutions do not.
Get-Childitem -Path "$($sourcePath)/**/*.config" -Recurse |
ForEach-Object {
$childPath = "$_".substring($sourcePath.length+1)
$dest = "$($destPath)\$($childPath)" #this puts a \ between dest and child path
Copy-Item -Verbose -Path $_ -Destination $dest -Force
}
You are ready to do with php zip lib, and can use zend zip lib too,
<?PHP
// create object
$zip = new ZipArchive();
// open archive
if ($zip->open('app-0.09.zip') !== TRUE) {
die ("Could not open archive");
}
// get number of files in archive
$numFiles = $zip->numFiles;
// iterate over file list
// print details of each file
for ($x=0; $x<$numFiles; $x++) {
$file = $zip->statIndex($x);
printf("%s (%d bytes)", $file['name'], $file['size']);
print "
";
}
// close archive
$zip->close();
?>
http://devzone.zend.com/985/dynamically-creating-compressed-zip-archives-with-php/
and there is also php pear lib for this http://www.php.net/manual/en/class.ziparchive.php
For those who are getting Error Unknown URI: content://downloads/public_downloads
.
I managed to solve this by getting a hint given by @Commonsware in this answer. I found out the class FileUtils on GitHub.
Here InputStream
methods are used to fetch file from Download
directory.
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
if (id != null && id.startsWith("raw:")) {
return id.substring(4);
}
String[] contentUriPrefixesToTry = new String[]{
"content://downloads/public_downloads",
"content://downloads/my_downloads",
"content://downloads/all_downloads"
};
for (String contentUriPrefix : contentUriPrefixesToTry) {
Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));
try {
String path = getDataColumn(context, contentUri, null, null);
if (path != null) {
return path;
}
} catch (Exception e) {}
}
// path could not be retrieved using ContentResolver, therefore copy file to accessible cache using streams
String fileName = getFileName(context, uri);
File cacheDir = getDocumentCacheDir(context);
File file = generateFileName(fileName, cacheDir);
String destinationPath = null;
if (file != null) {
destinationPath = file.getAbsolutePath();
saveFileFromUri(context, uri, destinationPath);
}
return destinationPath;
}
Actually we get this error also when we create canvas in javascript as below.
document.createElement('canvas');
Here point to be noted we have to provide argument name correctly as 'canvas' not anything else.
Thanks
Reason seems to be that the public key of the remote host is not stored or different from the stored one. (Be aware of security issues, see Greg Bacon's answer for details.)
I was used to git clone
prompting me in this case:
The authenticity of host 'host.net (10.0.0.42)' can't be established.
ECDSA key fingerprint is 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00.
Are you sure you want to continue connecting (yes/no)?
Not sure, why this error is thrown instead. Could be the configuration of your shell or the git SSH command.
Anyhow, you can get the same prompt by running ssh [email protected]
.
you can use ls -sh in linux you can do sort also you need to go to dir where you want to check the size of files
In case somebody is wondering how to just run an executable file:
..... > .\file.exe
or
......> full\path\to\file.exe
I found the right answer just by comparing the conversion to 1/1/1970 w/o the local time adjustment;
DateTime date = new DateTime(2011, 4, 1, 12, 0, 0, 0);
DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, 0);
TimeSpan span = (date - epoch);
double unixTime =span.TotalSeconds;
np.asscalar(a)
is deprecated since NumPy v1.16, use a.item()
instead.
For example:
a = np.array([[0.6813]])
print(a.item())
gives:
0.6813
var arr = _.map(obj)
You can use _.map
function (of both lodash
and underscore
) with object
as well, it will internally handle that case, iterate over each value and key with your iteratee, and finally return an array. Infact, you can use it without any iteratee (just _.map(obj)
) if you just want a array of values. The good part is that, if you need any transformation in between, you can do it in one go.
Example:
var obj = {_x000D_
key1: {id: 1, name: 'A'},_x000D_
key2: {id: 2, name: 'B'},_x000D_
key3: {id: 3, name: 'C'}_x000D_
};_x000D_
_x000D_
var array1 = _.map(obj, v=>v);_x000D_
console.log('Array 1: ', array1);_x000D_
_x000D_
/*Actually you don't need the callback v=>v if you_x000D_
are not transforming anything in between, v=>v is default*/_x000D_
_x000D_
//SO simply you can use_x000D_
var array2 = _.map(obj);_x000D_
console.log('Array 2: ', array2);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.js"></script>
_x000D_
However, if you want to transform your object you can do so, even if you need to preserve the key, you can do that ( _.map(obj, (v, k) => {...}
) with additional argument in map
and then use it how you want.
However there are other Vanilla JS solution to this (as every lodash
solution there should pure JS version of it) like:
Object.keys
and then map
them to valuesObject.values
(in ES-2017)Object.entries
and then map
each key/value pairs (in ES-2017)for...in
loop and use each keys for feting valuesAnd a lot more. But since this question is for lodash
(and assuming someone already using it) then you don't need to think a lot about version, support of methods and error handling if those are not found.
There are other lodash solutions like _.values
(more readable for specific perpose), or getting pairs and then map and so on. but in the case your code need flexibility that you can update it in future as you need to preserve keys
or transforming values a bit, then the best solution is to use a single _.map
as addresed in this answer. That will bt not that difficult as per readability also.
Currently there is no language support for enum flags, Meta classes might inherently add this feature if it would ever be part of the c++ standard.
My solution would be to create enum-only instantiated template functions adding support for type-safe bitwise operations for enum class using its underlying type:
File: EnumClassBitwise.h
#pragma once
#ifndef _ENUM_CLASS_BITWISE_H_
#define _ENUM_CLASS_BITWISE_H_
#include <type_traits>
//unary ~operator
template <typename Enum, typename std::enable_if_t<std::is_enum<Enum>::value, int> = 0>
constexpr inline Enum& operator~ (Enum& val)
{
val = static_cast<Enum>(~static_cast<std::underlying_type_t<Enum>>(val));
return val;
}
// & operator
template <typename Enum, typename std::enable_if_t<std::is_enum<Enum>::value, int> = 0>
constexpr inline Enum operator& (Enum lhs, Enum rhs)
{
return static_cast<Enum>(static_cast<std::underlying_type_t<Enum>>(lhs) & static_cast<std::underlying_type_t<Enum>>(rhs));
}
// &= operator
template <typename Enum, typename std::enable_if_t<std::is_enum<Enum>::value, int> = 0>
constexpr inline Enum operator&= (Enum& lhs, Enum rhs)
{
lhs = static_cast<Enum>(static_cast<std::underlying_type_t<Enum>>(lhs) & static_cast<std::underlying_type_t<Enum>>(rhs));
return lhs;
}
//| operator
template <typename Enum, typename std::enable_if_t<std::is_enum<Enum>::value, int> = 0>
constexpr inline Enum operator| (Enum lhs, Enum rhs)
{
return static_cast<Enum>(static_cast<std::underlying_type_t<Enum>>(lhs) | static_cast<std::underlying_type_t<Enum>>(rhs));
}
//|= operator
template <typename Enum, typename std::enable_if_t<std::is_enum<Enum>::value, int> = 0>
constexpr inline Enum& operator|= (Enum& lhs, Enum rhs)
{
lhs = static_cast<Enum>(static_cast<std::underlying_type_t<Enum>>(lhs) | static_cast<std::underlying_type_t<Enum>>(rhs));
return lhs;
}
#endif // _ENUM_CLASS_BITWISE_H_
For convenience and for reducing mistakes, you might want to wrap your bit flags operations for enums and for integers as well:
File: BitFlags.h
#pragma once
#ifndef _BIT_FLAGS_H_
#define _BIT_FLAGS_H_
#include "EnumClassBitwise.h"
template<typename T>
class BitFlags
{
public:
constexpr inline BitFlags() = default;
constexpr inline BitFlags(T value) { mValue = value; }
constexpr inline BitFlags operator| (T rhs) const { return mValue | rhs; }
constexpr inline BitFlags operator& (T rhs) const { return mValue & rhs; }
constexpr inline BitFlags operator~ () const { return ~mValue; }
constexpr inline operator T() const { return mValue; }
constexpr inline BitFlags& operator|=(T rhs) { mValue |= rhs; return *this; }
constexpr inline BitFlags& operator&=(T rhs) { mValue &= rhs; return *this; }
constexpr inline bool test(T rhs) const { return (mValue & rhs) == rhs; }
constexpr inline void set(T rhs) { mValue |= rhs; }
constexpr inline void clear(T rhs) { mValue &= ~rhs; }
private:
T mValue;
};
#endif //#define _BIT_FLAGS_H_
Possible usage:
#include <cstdint>
#include <BitFlags.h>
void main()
{
enum class Options : uint32_t
{
NoOption = 0 << 0
, Option1 = 1 << 0
, Option2 = 1 << 1
, Option3 = 1 << 2
, Option4 = 1 << 3
};
const uint32_t Option1 = 1 << 0;
const uint32_t Option2 = 1 << 1;
const uint32_t Option3 = 1 << 2;
const uint32_t Option4 = 1 << 3;
//Enum BitFlags
BitFlags<Options> optionsEnum(Options::NoOption);
optionsEnum.set(Options::Option1 | Options::Option3);
//Standard integer BitFlags
BitFlags<uint32_t> optionsUint32(0);
optionsUint32.set(Option1 | Option3);
return 0;
}
Your IDE should also support this. My IDE (SlickeEdit) calls it a "tag library." Simply add a tag library for the jar file, and you should be able to browse the classes and methods in a hierarchical manner.
If you can change the markup, you might want to use class
instead.
<!-- html -->
<a class="test" name="Name 1"></a>
<a class="test" name="Name 2"></a>
<a class="test" name="Name 3"></a>
// javascript
var elements = document.getElementsByClassName("test");
var names = '';
for(var i=0; i<elements.length; i++) {
names += elements[i].name;
}
document.write(names);
Electron + Angular 2/4 addition:
On top of adding the 'node' type to ts.config various files, what eventually worked for me was adding the next to the
typings.d.ts
file:
declare var window: Window;
interface Window {
process: any;
require: any;
}
Note that my case is developing with Electron + Angular 2/4. I needed the require on the window global.
Sparky's answer is one standard way to solve this problem, but as I also wrote in my comment, you run the risk of overflows. This can be solved by using a wider type, but what if you want to divide long long
s?
Nathan Ernst's answer provides one solution, but it involves a function call, a variable declaration and a conditional, which makes it no shorter than the OPs code and probably even slower, because it is harder to optimize.
My solution is this:
q = (x % y) ? x / y + 1 : x / y;
It will be slightly faster than the OPs code, because the modulo and the division is performed using the same instruction on the processor, because the compiler can see that they are equivalent. At least gcc 4.4.1 performs this optimization with -O2 flag on x86.
In theory the compiler might inline the function call in Nathan Ernst's code and emit the same thing, but gcc didn't do that when I tested it. This might be because it would tie the compiled code to a single version of the standard library.
As a final note, none of this matters on a modern machine, except if you are in an extremely tight loop and all your data is in registers or the L1-cache. Otherwise all of these solutions will be equally fast, except for possibly Nathan Ernst's, which might be significantly slower if the function has to be fetched from main memory.
Since I don't find a simple answer just adding more this will be JSP page. save this content to a jsp file once you run you can see the values of the selected displayed.
Update: save the file as test.jsp and run it on any web/app server
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<%@ page import="java.lang.*" %>
<%@ page import="java.io.*" %>
<% String[] a = request.getParameterValues("multiple");
if(a!=null)
{
for(int i=0;i<a.length;i++){
//out.println(Integer.parseInt(a[i])); //If integer
out.println(a[i]);
}}
%>
<html>
<body>
<form action="test.jsp" method="get">
<select name="multiple" multiple="multiple"><option value="1">1</option><option value="2">2</option><option value="3">3</option></select>
<input type="submit">
</form>
</body>
</html>
Differences: with respect to heirarchy: HashSet implements Set. HashMap implements Map and stores a mapping of keys and values.
A use of HashSet and HashMap with respect to database would help you understand the significance of each.
HashSet: is generally used for storing unique collection objects.
E.g: It might be used as implementation class for storing many-to-one relation ship between
class Item and Class Bid where (Item has many Bids)
HashMap: is used to map a key to value.the value may be null or any Object /list of Object (which is object in itself).
plot(t)
is in this case the same as
plot(t[[1]], t[[2]])
As the error message says, x and y differ in length and that is because you plot a list with length 4 against 1
:
> length(t)
[1] 4
> length(1)
[1] 1
In your second example you plot a list with elements named x
and y
, both vectors of length 2,
so plot
plots these two vectors.
Edit:
If you want to plot lines use
plot(t, type="l")
files <- list.files(pattern = "\\.dbf$")
$
at the end means that this is end of string. "dbf$"
will work too, but adding \\.
(.
is special character in regular expressions so you need to escape it) ensure that you match only files with extension .dbf
(in case you have e.g. .adbf
files).
▲
is the Unicode black up-pointing triangle (?) while ▼
is the black down-pointing triangle (?).
You can just plug the characters (copied from the web) into this site for a lookup.
Are you sure you want to do this? In essence, you're duplicating the data that is in the three original columns. From that point on, you'll need to make sure that the data in the combined field matches the data in the first three columns. This is more overhead for your application, and other processes that update the system will need to understand the relationship.
If you need the data, why not select in when you need it? The SQL for selecting what would be in that field would be:
SELECT CONCAT(zipcode, ' - ', city, ', ', state) FROM Table;
This way, if the data in the fields changes, you don't have to update your combined field.
Download proxy script and check last line for return statement Proxy IP and Port.
Add this IP and Port using these step.
1. Windows -->Preferences-->General -->Network Connection
2. Select Active Provider : Manual
3. Proxy entries select HTTP--> Click on Edit button
4. Then add Host as a proxy IP and port left Required Authentication blank.
5. Restart eclipse
6. Now Eclipse Marketplace... working.
This issue is caused by the pipeline mode in your Application Pool setting that your web site is set to.
Short
Simple way (bad practice) Add the following to your web.config. See http://www.iis.net/ConfigReference/system.webServer/validation
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
</system.webServer>
Long If possible, your best bet is to change your application to support the integrated pipelines. There are a number of changes between IIS6 and IIS7.x that will cause this error. You can find details about these changes here http://learn.iis.net/page.aspx/381/aspnet-20-breaking-changes-on-iis-70/.
If you're unable to do that, you'll need to change the App pool which may be more difficult to do depending on your availability to the web server.
Check http://technet.microsoft.com/en-us/library/cc731755(WS.10).aspx for details on changing the App Pool
If you need to create an App Pool with Classic pipelines, take a look at http://technet.microsoft.com/en-us/library/cc731784(WS.10).aspx
If you don't have access to the server to make this change, you'll need to do this through your hosting server and contact them for help.
Feel free to ask questions.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function scollPos() {
var div = document.getElementById("myDiv").scrollTop;
document.getElementById("pos").innerHTML = div;
}
</script>
</head>
<body>
<form id="form1">
<div id="pos">
</div>
<div id="myDiv" style="overflow: auto; height: 200px; width: 200px;" onscroll="scollPos();">
Place some large content here
</div>
</form>
</body>
</html>
You can try this solution
var d = new Date();
d.setTime(d.getTime());
var expires = "expires="+d.toUTCString();
document.cookie = 'COOKIE_NAME' + "=" + "" + ";domain=domain.com;path=/;" + expires;
You can use the short version:
File.write('/path/to/file', 'Some glorious content')
It returns the length written; see ::write for more details and options.
To append to the file, if it already exists, use:
File.write('/path/to/file', 'Some glorious content', mode: 'a')
I prefer the way I just figured out... No JS... 100% HTML & CSS:
(Will center it perfectly in the middle, regardless of the content size.
HTML FILE
<html><head>
<link href="jane.css" rel="stylesheet" />
</head>
<body>
<table id="container">
<tr>
<td id="centerpiece">
123
</td></tr></table>
</body></html>
CSS FILE
#container{
border:0;
width:100%;
height:100%;
}
#centerpiece{
vertical-align:middle;
text-align:center;
}
for centering images / div's held within the td, you may wish to try margin:auto; and specify a div dimension instead. -Though, saying that... the 'text-align' property will align much more than just a simple text element.
Yes it is! Just add them to your database-folder ( depending on the OS ) and run a command such as "MySQL Fix Permissions". This re-stored the database. See too it that the correct permissions are set on the files aswell.
@interface UIDevice (Screen)
typedef enum
{
iPhone = 1 << 1,
iPhoneRetina = 1 << 2,
iPhone5 = 1 << 3,
iPad = 1 << 4,
iPadRetina = 1 << 5
} DeviceType;
+ (DeviceType)deviceType;
@end
.m
#import "UIDevice+Screen.h"
@implementation UIDevice (Screen)
+ (DeviceType)deviceType
{
DeviceType thisDevice = 0;
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
{
thisDevice |= iPhone;
if ([[UIScreen mainScreen] respondsToSelector: @selector(scale)])
{
thisDevice |= iPhoneRetina;
if ([[UIScreen mainScreen] bounds].size.height == 568)
thisDevice |= iPhone5;
}
}
else
{
thisDevice |= iPad;
if ([[UIScreen mainScreen] respondsToSelector: @selector(scale)])
thisDevice |= iPadRetina;
}
return thisDevice;
}
@end
This way, if you want to detect whether it is just an iPhone or iPad (regardless of screen-size), you just use:
if ([UIDevice deviceType] & iPhone)
or
if ([UIDevice deviceType] & iPad)
If you want to detect just the iPhone 5, you can use
if ([UIDevice deviceType] & iPhone5)
As opposed to Malcoms answer where you would need to check just to figure out if it's an iPhone,
if ([UIDevice currentResolution] == UIDevice_iPhoneHiRes ||
[UIDevice currentResolution] == UIDevice_iPhoneStandardRes ||
[UIDevice currentResolution] == UIDevice_iPhoneTallerHiRes)`
Neither way has a major advantage over one another, it is just a personal preference.
For tesseract 3, the command is simpler tesseract imagename outputbase digits
according to the FAQ. But it doesn't work for me very well.
I turn to try different psm
options and find -psm 6
works best for my case.
man tesseract
for details.
This happened to me when I created a CSV file with OpenOffice Calc. It didn't happen when I created the CSV file in my text editor, even if I later edited it with Calc.
I solved my problem by copy-pasting in my text editor the data from my Calc-created file to a new editor-created file.
The following MySQL statement should modify your column to accept NULLs.
ALTER TABLE `MyTable`
ALTER COLUMN `Col3` varchar(20) DEFAULT NULL
I`ve added
initSelection: function (element, callback) {
callback({ id: 1, text: 'Text' });
}
BUT also
.select2('val', []);
at the end.
This solved my issue.
The method Louis's answer, as a String
prototype function:
String.prototype.splice = function(index, count, add) {
if (index < 0) {
index = this.length + index;
if (index < 0) {
index = 0;
}
}
return this.slice(0, index) + (add || "") + this.slice(index + count);
}
Example:
> "Held!".splice(3,0,"lo Worl")
< "Hello World!"
I know this thread is old, but...
If you're using html encoding (like AntiXSS), the previous answers will not work. The break tags will be rendered as text, rather than applying a carriage return. You can wrap your asp label in a pre tag, and it will display with whatever line breaks are set from the code behind.
Example:
<pre style="width:600px;white-space:pre-wrap;"><asp:Label ID="lblMessage" Runat="server" visible ="true"/></pre>
You just need to use single quotes:
$ echo "$TEST"
test
$ echo '$TEST'
$TEST
Inside single quotes special characters are not special any more, they are just normal characters.
If none of the other solutions work for you, double check that your scroll view actually is a UIScrollView
in Interface Builder.
At some point in the last few days, my UIScrollView
spontaneously changed type to a UIView
, even though its class said UIScrollView
in the inspector. I'm using Xcode 5.1 (5B130a)
.
You can either create a new scroll view and copy the measurements, settings and constraints from the old view, or you can manually change your view to a UIScrollView
in the xib
file. I did a compare and found the following differences:
Original:
<scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" directionalLockEnabled="YES" bounces="NO" pagingEnabled="YES" showsHorizontalScrollIndicator="NO" showsVerticalScrollIndicator="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Wsk-WB-LMH">
...
</scrollView>
After type spontaneously changed:
<view clearsContextBeforeDrawing="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" customClass="UIScrollView" id="qRn-TP-cXd">
...
</view>
So I replaced the <view>
line with my original <scrollView>
line.
I also replaced the view's close tag </view>
with </scrollView>
.
Be sure to keep the id the same as the current view, in this case: id="qRn-TP-cXd".
I also had to flush the xib from Xcode's cache by deleting the app's derived data:
Xcode->Window->Organizer->Projects
, choose your project, on the Derived Data line, click Delete...Or if using a device:
Xcode->Window->Organizer->Device
, choose your device->Applications, choose your app, click (-)Now clean the project, and remove the app from the simulator/device:
Xcode->Product->Clean
Simulator/device->press
and hold the app->click
the (X) to remove itYou should then be able to build and run your app and have scrolling functionality again.
P.S. I didn't have to set the scroll view's content size in viewDidLayoutSubviews
or turn off auto layout, but YMMV.
You want to do more than just getState
. You want to react to changes in the store.
If you aren't using react-redux, you can do this:
function rerender() {
const state = store.getState();
render(
<div>
{ state.items.map((item) => <p> {item.title} </p> )}
</div>,
document.getElementById('app')
);
}
// subscribe to store
store.subscribe(rerender);
// do initial render
rerender();
// dispatch more actions and view will update
But better is to use react-redux. In this case you use the Provider like you mentioned, but then use connect to connect your component to the store.
just use pow(a,b)
,which is exactly 3**4
in python
On top of what the others have already stated, some sort of server-side scripting is necessary in order for the server to read and save the file.
Using PHP might be a good choice, but you're free to use any server-side scripting language. http://www.w3schools.com/php/php_file_upload.asp may be of use on that end.
I looked at Nate Barr's answer above, which you seemed to like. It doesn't seem very different from the simpler
html {background-color: grey}
Update
As of 2019 this can be easily achieved using ProgressIndicator
, in Material Components library, used with the Widget.MaterialComponents.ProgressIndicator.Circular.Indeterminate
style.
For more details please check Gabriele Mariotti's answer below.
Old implementation
Here is an awesome implementation of the material design circular intermediate progress bar https://gist.github.com/castorflex/4e46a9dc2c3a4245a28e. The implementation only lacks the ability add various colors like in inbox by android app but this does a pretty great job.
Hope this will help you...
RadioButton rb = (RadioButton) findViewById(R.id.yourFirstRadioButton);
rb.setOnClickListener(first_radio_listener);
and
OnClickListener first_radio_listener = new OnClickListener (){
public void onClick(View v) {
//Your Implementaions...
}
};
Probably a duplicate of this post: A customized input text box in html/html5
input {_x000D_
border: 0;_x000D_
outline: 0;_x000D_
background: transparent;_x000D_
border-bottom: 1px solid black;_x000D_
}
_x000D_
<input></input>
_x000D_
For italic you can use the 'i' tag, for bold try the 'b' tag
<i> italic </i>_x000D_
<b> bold </b>
_x000D_
It is a good idea to check the cassandra log if even the server is running. I was getting exactly the same message and unable to do anything with that and then I found out that there are errors in the log and the system is actually not working.
Silly, I know, but could happen...
If your environment is using both Guice and Spring and using the constructor @Inject, for example, with Play Framework, you will also run into this issue if you have mistakenly auto-completed the import with an incorrect choice of:
import com.google.inject.Inject;
Then you get the same missing default constructor
error even though the rest of your source with @Inject looks exactly the same way as other working components in your project and compile without an error.
Correct that with:
import javax.inject.Inject;
Do not write a default constructor with construction time injection.
One liner to make truncate operation:
FileChannel.open(Paths.get("/home/user/file/to/truncate"), StandardOpenOption.WRITE).truncate(0).close();
More information available at Java Documentation: https://docs.oracle.com/javase/7/docs/api/java/nio/channels/FileChannel.html
I want to let everyone know that sometimes this error just is a result of some weird memory error. Restart your pc and go back into visual studio and it will be gone!! Bizarre! Try that before you start playing around with your web config file etc like I did!!!! ;-)
Generally, the backtrace is used to get the stack of the current thread, but if there is a necessity to get the stack trace of all the threads, use the following command.
thread apply all bt
To use quotes just for completeness.
"/Users/my/work/a project with space"/**
If not recursive, remove the /**
Your code is very vague and not understandable, but I can provide you with an alternative.
First of all, if you want temp
to go through the whole string, you can do something like this:
char *temp;
for (temp = your_string; *temp; ++temp)
/* do something with *temp */
The term *temp
as the for
condition simply checks whether you have reached the end of the string or not. If you have, *temp
will be '\0'
(NUL
) and the for
ends.
Now, inside the for, you want to find the bits that compose *temp
. Let's say we print the bits:
for (as above)
{
int bit_index;
for (bit_index = 7; bit_index >= 0; --bit_index)
{
int bit = *temp >> bit_index & 1;
printf("%d", bit);
}
printf("\n");
}
To make it a bit more generic, that is to convert any type to bits, you can change the bit_index = 7
to bit_index = sizeof(*temp)*8-1
Import: import java.util.Scanner;
Define your variables: String name; int age;
Define your scanner: Scanner scan = new Scanner(System.in);
If you want to type:
name = scan.nextLine();
age = scan.nextInt();
Close scanner if no longer needed: scan.close();