In Windows, you can change it through the registry:
; Set the TIME_WAIT delay to 30 seconds (0x1E)
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP\Parameters]
"TcpTimedWaitDelay"=dword:0000001E
One contending technology you've omitted is Server-Sent Events / Event Source. What are Long-Polling, Websockets, Server-Sent Events (SSE) and Comet? has a good discussion of all of these. Keep in mind that some of these are easier than others to integrate with on the server side.
If you are using Http Client version 4.3 and above you should be using this:
RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(30 * 1000).build();
HttpClient httpClient = HttpClientBuilder.create().setDefaultRequestConfig(requestConfig).build();
Bandwidth is the maximum amount of data that can travel through a 'channel'.
Throughput is how much data actually does travel through the 'channel' successfully. This can be limited by a ton of different things including latency, and what protocol you are using.
It should be 65535.
In theory SMTP can be handled by either TCP, UDP, or some 3rd party protocol.
As defined in RFC 821, RFC 2821, and RFC 5321:
SMTP is independent of the particular transmission subsystem and requires only a reliable ordered data stream channel.
In addition, the Internet Assigned Numbers Authority has allocated port 25 for both TCP and UDP for use by SMTP.
In practice however, most if not all organizations and applications only choose to implement the TCP protocol. For example, in Microsoft's port listing port 25 is only listed for TCP and not UDP.
The big difference between TCP and UDP that makes TCP ideal here is that TCP checks to make sure that every packet is received and re-sends them if they are not whereas UDP will simply send packets and not check for receipt. This makes UDP ideal for things like streaming video where every single packet isn't as important as keeping a continuous flow of packets from the server to the client.
Considering SMTP, it makes more sense to use TCP over UDP. SMTP is a mail transport protocol, and in mail every single packet is important. If you lose several packets in the middle of the message the recipient might not even receive the message and if they do they might be missing key information. This makes TCP more appropriate because it ensures that every packet is delivered.
You can solve this problem by using AJAX. You don't need to load JQuery for AJAX but it has a better error and success handling than native JS.
I would do it like so:
1) add an click eventlistener to all my anchors on the page. 2) on click, you can setup an ajax-request to your php, in the POST-DATA you set the anchor id or the text-value 3) the php gets the value and you can setup a request to your database. Then you return the value which you need and echo it to the ajax-request. 4) your success function of the ajax-request is doing some stuff
For more information about ajax-requests look back here:
-> Ajax-Request NATIVE https://blog.garstasio.com/you-dont-need-jquery/ajax/
A simple JQuery examle:
$("button").click(function(){
$.ajax({url: "demo_test.txt", success: function(result){
$("#div1").html(result);
}});
});
Most likely it means that the open didn't fail.
When Perl opens a file, it checks whether or not the file is a TTY (so that it can answer the -T $fh
filetest operator) by issuing the TCGETS
ioctl against it. If the file is a regular file and not a tty, the ioctl fails and sets errno to ENOTTY
(string value: "Inappropriate ioctl for device"). As ysth says, the most common reason for seeing an unexpected value in $!
is checking it when it's not valid -- that is, anywhere other than immediately after a syscall failed, so testing the result codes of your operations is critically important.
If open
actually did return false for you, and you found ENOTTY
in $!
then I would consider this a small bug (giving a useless value of $!
) but I would also be very curious as to how it happened. Code and/or truss output would be nifty.
You are debugging two or more times. so the application may run more at a time. Then only this issue will occur. You should close all debugging applications using task-manager, Then debug again.
I'll right simple example show you the right way to use wait
and notify
in Java.
So I'll create two class named ThreadA & ThreadB. ThreadA will call ThreadB.
public class ThreadA {
public static void main(String[] args){
ThreadB b = new ThreadB();//<----Create Instance for seconde class
b.start();//<--------------------Launch thread
synchronized(b){
try{
System.out.println("Waiting for b to complete...");
b.wait();//<-------------WAIT until the finish thread for class B finish
}catch(InterruptedException e){
e.printStackTrace();
}
System.out.println("Total is: " + b.total);
}
}
}
and for Class ThreadB:
class ThreadB extends Thread{
int total;
@Override
public void run(){
synchronized(this){
for(int i=0; i<100 ; i++){
total += i;
}
notify();//<----------------Notify the class wich wait until my finish
//and tell that I'm finish
}
}
}
In both Visual Basic 6.0 and VB.NET you would use:
Exit For
to break from For loopWend
to break from While loopExit Do
to break from Do loopdepending on the loop type. See Exit Statements for more details.
Interfaces are only at compile time. This allows only you to check that the expected data received follows a particular structure. For this you can cast your content to this interface:
this.http.get('...')
.map(res => <Product[]>res.json());
See these questions:
You can do something similar with class but the main differences with class are that they are present at runtime (constructor function) and you can define methods in them with processing. But, in this case, you need to instantiate objects to be able to use them:
this.http.get('...')
.map(res => {
var data = res.json();
return data.map(d => {
return new Product(d.productNumber,
d.productName, d.productDescription);
});
});
Update for mysql 5.5 and config-win.h not visible issue
In 5.5 config-win. has actually moved to Connector separate folder in windows. i.e. smth like:
C:\Program Files\MySQL\Connector C 6.0.2\include
To overcome the problem one need not only to download "dev bits" (which actually connects the connector) but also to modify mysqldb install scripts to add the include folder. I've done a quick dirty fix as that.
site.cfg:
# Windows connector libs for MySQL.
connector = C:\Program Files\MySQL\Connector C 6.0.2
in setup_windows.py locate the line
include_dirs = [ os.path.join(mysql_root, r'include') ]:
and add:
include_dirs = [ os.path.join(options['connector'], r'include') ]
after it.
Ugly but works until mysqldb authors will change the behaviour.
Almost forgot to mention. In the same manner one needs to add similar additional entry for libs:
library_dirs = [ os.path.join(options['connector'], r'lib\opt') ]
i.e. your setup_windows.py looks pretty much like:
...
library_dirs = [ os.path.join(mysql_root, r'lib\opt') ]
library_dirs = [ os.path.join(options['connector'], r'lib\opt') ]
libraries = [ 'kernel32', 'advapi32', 'wsock32', client ]
include_dirs = [ os.path.join(mysql_root, r'include') ]
include_dirs = [ os.path.join(options['connector'], r'include') ]
extra_compile_args = [ '/Zl' ]
...
I'm not quite sure what you're asking, but maybe this can help:
window.onload = function(){
// Code. . .
}
Or:
window.onload = main;
function main(){
// Code. . .
}
You can go to Design mode and select "Fix" at the bottom of the warning. Then a pop up will appear (seems like it's going to register the new string) and voila, the error is fixed.
update based on Ordering by the order of values in a SQL IN() clause
Solution:
DECLARE @counter int
SET @counter = 0
;WITH q AS
(
select * from Products WHERE ID in (SELECT TOP (10) ID FROM Products WHERE ID IN( 3,2,1)
ORDER BY ID DESC)
)
update q set Display= @counter, @counter = @counter + 1
This updates based on descending 3,2,1
Hope helps someone.
Here is a simple way using an ArrayList
:
List<Integer> solution = new ArrayList<>();
for (int i = 1; i <= 6; i++) {
solution.add(i);
}
Collections.shuffle(solution);
Errr, it's a bit messy in the view. But I think I've gotten it to work with group (http://mongoid.org/docs/querying/)
Controller
@event_attendees = Activity.only(:user_id).where(:action => 'Attend').order_by(:created_at.desc).group
View
<% @event_attendees.each do |event_attendee| %>
<%= event_attendee['group'].first.user.first_name %>
<% end %>
Use ChartNew.js instead of Chart.js
...
So, I have re-worked Chart.js. Most of the changes, are associated to requests in "GitHub" issues of Chart.js.
And here is a sample http://jsbin.com/lakiyu/2/edit
var newopts = {
inGraphDataShow: true,
inGraphDataRadiusPosition: 2,
inGraphDataFontColor: 'white'
}
var pieData = [
{
value: 30,
color: "#F38630",
},
{
value: 30,
color: "#F34353",
},
{
value: 30,
color: "#F34353",
}
]
var pieCtx = document.getElementById('pieChart').getContext('2d');
new Chart(pieCtx).Pie(pieData, newopts);
It even provides a GUI editor http://charts.livegap.com/
So sweet.
finalize will print out the count for class creation.
protected void finalize() throws Throwable {
System.out.println("Run F" );
if ( checkedOut)
System.out.println("Error: Checked out");
System.out.println("Class Create Count: " + classCreate);
}
main
while ( true) {
Book novel=new Book(true);
//System.out.println(novel.checkedOut);
//Runtime.getRuntime().runFinalization();
novel.checkIn();
new Book(true);
//System.runFinalization();
System.gc();
As you can see. The following out put show the gc got executed first time when the class count is 36.
C:\javaCode\firstClass>java TerminationCondition
Run F
Error: Checked out
Class Create Count: 36
Run F
Error: Checked out
Class Create Count: 48
Run F
To compare two lists with the order preserved use,
assertThat(actualList, contains("item1","item2"));
Pickle uses different protocols
to convert your data to a binary stream.
In python 2 there are 3 different protocols (0
, 1
, 2
) and the default is 0
.
In python 3 there are 5 different protocols (0
, 1
, 2
, 3
, 4
) and the default is 3
.
You must specify in python 3 a protocol lower than 3
in order to be able to load the data in python 2. You can specify the protocol
parameter when invoking pickle.dump
.
A few people before me mentioned the .pop
trick to delete and create a key in a one-liner.
I personally find the more explicit implementation more readable:
d = {'a': 1, 'b': 2}
v = d['b']
del d['b']
d['c'] = v
The code above returns {'a': 1, 'c': 2}
If you are trying to reference an android style, you need to put "android:" in there
android:theme="@android:style/Theme.Black"
If that doesn't solve it, you may need to edit your question with the full manifest file, so we can see more details
System.Diagnostics.Debug.WriteLine()
will work, but you have to be looking in the right place for the output. In Visual Studio 2010, on the menu bar, click Debug -> Windows -> Output. Now, at the bottom of the screen docked next to your error list, there should be an output tab. Click it and double check it's showing output from the debug stream on the dropdown list.
P.S.: I think the output window shows on a fresh install, but I can't remember. If it doesn't, or if you closed it by accident, follow these instructions.
I had the same problem and came up with a very simple solution working for all (xs, sm, normal and lg) buttons more or less:
.btn-circle {
border-radius: 50%;
padding: 0.1em;
width:1.8em;
}
The difference between the btn-xs and -sm are only their padding. And this is not covered with this snippet. This snippet calculates the sizes based on the font-size only.
If you want set custom exception handling behavior for a specific controller, you can do so by overriding the controllers OnActionExecuted
method.
Remember to set the ExceptionHandled
property to true to disable default exception handling behavior.
Here is a sample from an api I'm writing, where I want to catch specific types of exceptions and return a json formatted result:
private static readonly Type[] API_CATCH_EXCEPTIONS = new Type[]
{
typeof(InvalidOperationException),
typeof(ValidationException)
};
public override void OnActionExecuted(ActionExecutedContext context)
{
base.OnActionExecuted(context);
if (context.Exception != null)
{
var exType = context.Exception.GetType();
if (API_CATCH_EXCEPTIONS.Any(type => exType == type || exType.IsSubclassOf(type)))
{
context.Result = Problem(detail: context.Exception.Message);
context.ExceptionHandled = true;
}
}
}
If you have two ViewController(FirstVC, SecondVC) Embed in Navigation Controller, and you want there is only back arrow in SecondVC.
You can try this In FirstVC's ViewDidLoad
override func viewDidLoad() {
super.viewDidLoad()
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)
}
Then when you push into SecondVC, you'll see the there is only back arrow
Series.apply(func, convert_dtype=True, args=(), **kwds)
args : tuple
x = my_series.apply(my_function, args = (arg1,))
its very true on oracle as well as sql is "users" is a reserved words just change it , it will serve u the best if u like change it to this
UPDATE system_info set field_value = 'NewValue'
FROM system_users users JOIN system_info info ON users.role_type = info.field_desc
where users.user_name = 'uname'
Sounds like a good job for regular expressions.
Laravel validation rules support regular expressions. Both 4.X and 5.X versions are supporting it :
This might help too:
you can add an invisible TextView to the FrameLayout.
<TextView
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_weight="1"
android:visibility="invisible"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<Button
android:id="@+id/daily_delete_btn"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_weight="1"
android:text="DELETE"
android:layout_gravity="center"/>
<Button
android:id="@+id/daily_save_btn"
android:layout_width="0dp"
android:layout_height="50dp"
android:layout_weight="1"
android:text="SAVE"
android:layout_gravity="center"/>
</LinearLayout>
HTML:
<div id="parent">
<div class="right"></div>
<div class="left"></div>
</div>
(div.right needs to be before div.left in the HTML markup)
CSS:
.right {
float:right;
width:200px;
}
Declare this
[DllImport("user32")]
private static extern bool SetForegroundWindow(IntPtr hwnd);
[DllImport("user32")]
private static extern bool ShowWindowAsync(IntPtr hwnd, int a);
And put this inside your function (note that "checkInstalled" is optional, but if you'll use it, you have to implement it)
if (ckeckInstalled("example"))
{
int count = Process.GetProcessesByName("example").Count();
if (count < 1)
Process.Start("example.exe");
else
{
var proc = Process.GetProcessesByName("example").FirstOrDefault();
if (proc != null && proc.MainWindowHandle != IntPtr.Zero)
{
SetForegroundWindow(proc.MainWindowHandle);
ShowWindowAsync(proc.MainWindowHandle, 3);
}
}
}
NOTE: I'm not sure if this works when more than one instance of the .exe is running.
That's exactly what fileinput is for:
import fileinput
with open(outfilename, 'w') as fout, fileinput.input(filenames) as fin:
for line in fin:
fout.write(line)
For this use case, it's really not much simpler than just iterating over the files manually, but in other cases, having a single iterator that iterates over all of the files as if they were a single file is very handy. (Also, the fact that fileinput
closes each file as soon as it's done means there's no need to with
or close
each one, but that's just a one-line savings, not that big of a deal.)
There are some other nifty features in fileinput
, like the ability to do in-place modifications of files just by filtering each line.
As noted in the comments, and discussed in another post, fileinput
for Python 2.7 will not work as indicated. Here slight modification to make the code Python 2.7 compliant
with open('outfilename', 'w') as fout:
fin = fileinput.input(filenames)
for line in fin:
fout.write(line)
fin.close()
There is usually no difference, as far as page rendering goes. It's a huge facility developer-side, though, when your web project grows bigger.
I make use of both in this fashion:
You could put \s*
inbetween every character in your search string so if you were looking for cat you would use c\s*a\s*t\s*s\s*s
It's long but you could build the string dynamically of course.
You can see it working here: http://www.rubular.com/r/zzWwvppSpE
Presumably this would work:
IF(compliment = 'set' OR compliment = 'Y' OR compliment = 1, 'Y', 'N') AS customer_compliment
I like Bjorn's answer, however the solution he's provided is misleading, as the method updates an existing parameter, rather than adding it if it doesn't exist.. To make it a bit safer, I've adapted it below.
public static class UriExtensions
{
/// <summary>
/// Adds or Updates the specified parameter to the Query String.
/// </summary>
/// <param name="url"></param>
/// <param name="paramName">Name of the parameter to add.</param>
/// <param name="paramValue">Value for the parameter to add.</param>
/// <returns>Url with added parameter.</returns>
public static Uri AddOrUpdateParameter(this Uri url, string paramName, string paramValue)
{
var uriBuilder = new UriBuilder(url);
var query = HttpUtility.ParseQueryString(uriBuilder.Query);
if (query.AllKeys.Contains(paramName))
{
query[paramName] = paramValue;
}
else
{
query.Add(paramName, paramValue);
}
uriBuilder.Query = query.ToString();
return uriBuilder.Uri;
}
}
Assuming that the OP is invoking a batch file with cmd.exe, to properly break out of a for loop just goto a label;
Change this:
For /L %%f In (1,1,1000000) Do If Not Exist %%f Goto :EOF
To this:
For /L %%f In (1,1,1000000) Do If Not Exist %%f Goto:fileError
.. do something
.. then exit or do somethign else
:fileError
GOTO:EOF
Better still, add some error reporting:
set filename=
For /L %%f In (1,1,1000000) Do(
set filename=%%f
If Not Exist %%f set tempGoto:fileError
)
.. do something
.. then exit or do somethign else
:fileError
echo file does not exist '%filename%'
GOTO:EOF
I find this to be a helpful site about lesser known cmd.exe/DOS batch file functions and tricks: https://www.dostips.com/
just return true inside your if statement
var myArr = [1,2,3,4];
myArr.forEach(function(elem){
if (elem === 3) {
return true;
// Go to "next" iteration. Or "continue" to next iteration...
}
console.log(elem);
});
A possible solution:
dir|find "bytes free"
a more "advanced solution", for Windows Xp and beyond:
wmic /node:"%COMPUTERNAME%" LogicalDisk Where DriveType="3" Get DeviceID,FreeSpace|find /I "c:"
The Windows Management Instrumentation Command-line (WMIC) tool (Wmic.exe) can gather vast amounts of information about about a Windows Server 2003 as well as Windows XP or Vista. The tool accesses the underlying hardware by using Windows Management Instrumentation (WMI). Not for Windows 2000.
As noted by Alexander Stohr in the comments:
dir
' will still do the job),dir
' is locale dependent.Alternatively, not to think about a newline or space somewhere in the file, you can buffer the output. Basically, you call ob_start()
at the very beginning of the file and ob_end_flush()
at the end. You can find more details at php.net ob-start function description.
Edit: If you use buffering, you can output HTML before and after header() function - buffering will then ignore the output and return only the redirection header.
For Cordova based project, run cordova clean android
before build again, as @mkimmet suggested.
This is a common issue but few people know there's a simple HTML 5 solution:
<a href="./directory/yourfile.pdf" download="newfilename">Download the pdf</a>
Where newfilename
is the suggested filename for the user to save the file. Or it will default to the filename on the serverside if you leave it empty, like this:
<a href="./directory/yourfile.pdf" download>Download the pdf</a>
Compatibility: I tested this on Firefox 21 and Iron, both worked fine. It might not work on HTML5-incompatible or outdated browsers. The only browser I tested that didn't force download is IE...
Check compatibility here: http://caniuse.com/#feat=download
Here's another approach using Vuetify grid
system available in Vuetify 2.x
: https://vuetifyjs.com/en/components/grids
<v-container>
<v-row align="center">
Hello I am center to vertically using "grid".
</v-row>
</v-container>
I think the best solution I have come across is on this stackoverflow.
This short jQuery code allows all your hover effects to show on click or touch..
No need to add anything within the function.
$('body').on('touchstart', function() {});
Hope this helps.
After correcting the JSON this should work for you now:
var array = [{id: 1, date:'Mar 12 2012 10:00:00 AM'}, {id: 2, date:'Mar 8 2012 08:00:00 AM'}];
array.sort(function(a, b) {
var c = new Date(a.date);
var d = new Date(b.date);
return c-d;
});
If you want to update items with a Where
clause, using a .Where(...) will truncate your results if you do:
mylist = mylist.Where(n => n.Id == ID).Select(n => { n.Property = ""; return n; }).ToList();
You can do updates to specific item(s) in the list like so:
mylist = mylist.Select(n => { if (n.Id == ID) { n.Property = ""; } return n; }).ToList();
Always return item even if you don't make any changes. This way it will be kept in the list.
Separate your rules with a semi colon in a single declaration:
<span style="color:blue;font-style:italic">Test</span>
For make responsive table you can make 100% of each ‘td’ and insert related heading in the ‘td’ on the mobile(less the ’768px’ width).
See More:
http://wonderdesigners.com/?p=227
You have a few options available. You'll want to get comfortable with python's string iterpolation. Which is a term you might have more success searching for in the future when you want to know stuff like this.
Better for queries:
some_dictionary_with_the_data = {
'name': 'awesome song',
'artist': 'some band',
etc...
}
cursor.execute ("""
INSERT INTO Songs (SongName, SongArtist, SongAlbum, SongGenre, SongLength, SongLocation)
VALUES
(%(name)s, %(artist)s, %(album)s, %(genre)s, %(length)s, %(location)s)
""", some_dictionary_with_the_data)
Considering you probably have all of your data in an object or dictionary already, the second format will suit you better. Also it sucks to have to count "%s" appearances in a string when you have to come back and update this method in a year :)
Unless I misunderstand your question, you can just open a file read only. Here is a simply example, without any checks.
To get the file path from the user use this function:
Private Function get_user_specified_filepath() As String
'or use the other code example here.
Dim fd As Office.FileDialog
Set fd = Application.FileDialog(msoFileDialogFilePicker)
fd.AllowMultiSelect = False
fd.Title = "Please select the file."
get_user_specified_filepath = fd.SelectedItems(1)
End Function
Then just open the file read only and assign it to a variable:
dim wb as workbook
set wb = Workbooks.Open(get_user_specified_filepath(), ReadOnly:=True)
No, with eval
is not safe, you can use JSON parser that is much safer: var myObject = JSON.parse(data);
For this use the lib https://github.com/douglascrockford/JSON-js
I had this issue when i cloned from a git repository and I had it resolved when I created a new project and re-inserted the src folder from the old project.
The src folder is the only folder needed when deploying your angular application but you must reconfigure the dev environment, using this solution.
To get elements of a list you have to use list[i]
instead of list(i)
.
If you define words as "sequences of characters delimited by space"... Use strrpos()
to find the last space in the string, shorten to that position, trim the result.
select age(timestamp_A, timestamp_B)
Answering to Igor's comment:
select age('2013-02-28 11:01:28'::timestamp, '2011-12-31 11:00'::timestamp);
age
-------------------------------
1 year 1 mon 28 days 00:01:28
In my case It worked by going to project Properties and under Target Framework i selected .NET Framework 4. This is because i have moved to a new machine that had other higher .NET frameworks already installed and the project selected them by default. See what target framework works for you.
I have also found some more error subcodes, in case of OAuth exception. Copied from the facebook bugtracker, without any garantee (maybe contain deprecated, wrong and discontinued ones):
/**
* (Date: 30.01.2013)
*
* case 1: - "An error occured while creating the share (publishing to wall)"
* - "An unknown error has occurred."
* case 2: "An unexpected error has occurred. Please retry your request later."
* case 3: App must be on whitelist
* case 4: Application request limit reached
* case 5: Unauthorized source IP address
* case 200: Requires extended permissions
* case 240: Requires a valid user is specified (either via the session or via the API parameter for specifying the user."
* case 1500: The url you supplied is invalid
* case 200:
* case 210: - Subject must be a page
* - User not visible
*/
/**
* Error Code 100 several issus:
* - "Specifying multiple ids with a post method is not supported" (http status 400)
* - "Error finding the requested story" but it is available via GET
* - "Invalid post_id"
* - "Code was invalid or expired. Session is invalid."
*
* Error Code 2:
* - Service temporarily unavailable
*/
To treat both , and . as decimal point you must not only replace one with the other, but also make sure the Culture used parsing interprets it as a decimal point.
text = text.Replace(',', '.');
return double.TryParse(text, NumberStyles.Any, CultureInfo.InvariantCulture, out value);
Checking the port may work.
On pgAdmin page at the top, go to Properties and check the port if it is same with the one provided during the setup. If not click the edit button on the top right and change the port.
The method match() searches a string for a match and returns an Array object.
// Original string
var str = "My cow always gives milk";
// Using index [0] would return<br/>
// "**cow always gives milk**"
str.match(/cow(.*)milk/)**[0]**
// Using index **[1]** would return
// "**always gives**"
str.match(/cow(.*)milk/)[1]
One case which hasn't been covered is how to handle cancellation inside of an async method. Take for example a simple case where you need to upload some data to a service get it to calculate something and then return some results.
public async Task<Results> ProcessDataAsync(MyData data)
{
var client = await GetClientAsync();
await client.UploadDataAsync(data);
await client.CalculateAsync();
return await client.GetResultsAsync();
}
If you want to support cancellation then the easiest way would be to pass in a token and check if it has been cancelled between each async method call (or using ContinueWith). If they are very long running calls though you could be waiting a while to cancel. I created a little helper method to instead fail as soon as canceled.
public static class TaskExtensions
{
public static async Task<T> WaitOrCancel<T>(this Task<T> task, CancellationToken token)
{
token.ThrowIfCancellationRequested();
await Task.WhenAny(task, token.WhenCanceled());
token.ThrowIfCancellationRequested();
return await task;
}
public static Task WhenCanceled(this CancellationToken cancellationToken)
{
var tcs = new TaskCompletionSource<bool>();
cancellationToken.Register(s => ((TaskCompletionSource<bool>)s).SetResult(true), tcs);
return tcs.Task;
}
}
So to use it then just add .WaitOrCancel(token)
to any async call:
public async Task<Results> ProcessDataAsync(MyData data, CancellationToken token)
{
Client client;
try
{
client = await GetClientAsync().WaitOrCancel(token);
await client.UploadDataAsync(data).WaitOrCancel(token);
await client.CalculateAsync().WaitOrCancel(token);
return await client.GetResultsAsync().WaitOrCancel(token);
}
catch (OperationCanceledException)
{
if (client != null)
await client.CancelAsync();
throw;
}
}
Note that this will not stop the Task you were waiting for and it will continue running. You'll need to use a different mechanism to stop it, such as the CancelAsync
call in the example, or better yet pass in the same CancellationToken
to the Task
so that it can handle the cancellation eventually. Trying to abort the thread isn't recommended.
They are both rubbish! XCOPY
was older and unreliable, so Microsoft replaced it with ROBOCOPY
, which is still rubbish.
Don't worry though, it is a long-standing tradition that was started by the original COPY
command, which to this day, still needs the /B
switch to get it to actually copy properly!
By 'JSON array containing objects' I guess you mean a string containing JSON?
If so you can use the safe var myArray = JSON.parse(myJSON)
method (either native or included using JSON2), or the usafe var myArray = eval("(" + myJSON + ")")
. eval should normally be avoided, but if you are certain that the content is safe, then there is no problem.
After that you just iterate over the array as normal.
for (var i = 0; i < myArray.length; i++) {
alert(myArray[i].Title);
}
One way is to create a temp table:
CREATE TABLE #sp_who2
(
SPID INT,
Status VARCHAR(1000) NULL,
Login SYSNAME NULL,
HostName SYSNAME NULL,
BlkBy SYSNAME NULL,
DBName SYSNAME NULL,
Command VARCHAR(1000) NULL,
CPUTime INT NULL,
DiskIO INT NULL,
LastBatch VARCHAR(1000) NULL,
ProgramName VARCHAR(1000) NULL,
SPID2 INT
)
GO
INSERT INTO #sp_who2
EXEC sp_who2
GO
SELECT *
FROM #sp_who2
WHERE Login = 'bla'
GO
DROP TABLE #sp_who2
GO
I had the same problem. I googled it for two days. At last I accidentally noticed that the problem was access modifier of the constructor of the Controller.
I didn’t put the public
key word behind the Controller’s constructor.
public class MyController : ApiController
{
private readonly IMyClass _myClass;
public MyController(IMyClass myClass)
{
_myClass = myClass;
}
}
I add this experience as another answer maybe someone else made a similar mistake.
For Xcode 8 you gotta download a package named Additional Tools for Xcode 8
For other versions (8.1, 8.2) get the package here
Double click and open the dmg
and go to Hardware
directory. Double click on Network Link Conditioner.prefPane
.
Click on install
Now Network Link Conditioner will be available in System Preferences.
For versions older than Xcode 8, the package to be downloaded is called Hardware IO Tools for Xcode
. Get it from this page
Take a peek at the ng-click
directive source:
...
compile: function($element, attr) {
var fn = $parse(attr[directiveName]);
return function(scope, element, attr) {
element.on(lowercase(name), function(event) {
scope.$apply(function() {
fn(scope, {$event:event});
});
});
};
}
It shows how the event
object is being passed on to the ng-click
expression, using $event
as a name of the parameter. This is done by the $parse service, which doesn't allow for the parameters to bleed into the target scope, which means the answer is no, you can't access the $event
object any other way but through the callback parameter.
The reason for this problem is the cache files in localhost. According to that I've tried several things as follows to clear the cache on my project, but every time I've failed.
So I've found a solution for this problem after each and every above steps failed and it worked for me perfectly. I deleted the cache.php file in host_route/bootstrap/cache directory.
I think this answer will help your problem.
Another option is to write to a temporary file to prevent the stdout blocking instead of needing to poll with communicate(). This worked for me where the other answers did not; for example on windows.
outFile = tempfile.SpooledTemporaryFile()
errFile = tempfile.SpooledTemporaryFile()
proc = subprocess.Popen(args, stderr=errFile, stdout=outFile, universal_newlines=False)
wait_remaining_sec = timeout
while proc.poll() is None and wait_remaining_sec > 0:
time.sleep(1)
wait_remaining_sec -= 1
if wait_remaining_sec <= 0:
killProc(proc.pid)
raise ProcessIncompleteError(proc, timeout)
# read temp streams from start
outFile.seek(0);
errFile.seek(0);
out = outFile.read()
err = errFile.read()
outFile.close()
errFile.close()
in plain javascript:
function test() {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
alert(i + (cboxes[i].checked?' checked ':' unchecked ') + cboxes[i].value);
}
}
function selectOnlyOne(current_clicked) {
var cboxes = document.getElementsByName('mailId[]');
var len = cboxes.length;
for (var i=0; i<len; i++) {
cboxes[i].checked = (cboxes[i] == current);
}
}
At work, we recently went through implementation of i18n on a couple of our properties, and one of the things we kept struggling with was the performance hit of dealing with on-the-fly translation, then I discovered this great blog post by Thomas Bley which inspired the way we're using i18n to handle large traffic loads with minimal performance issues.
Instead of calling functions for every translation operation, which as we know in PHP is expensive, we define our base files with placeholders, then use a pre-processor to cache those files (we store the file modification time to make sure we're serving the latest content at all times).
Thomas uses {tr}
and {/tr}
tags to define where translations start and end. Due to the fact that we're using TWIG, we don't want to use {
to avoid confusion so we use [%tr%]
and [%/tr%]
instead. Basically, this looks like this:
`return [%tr%]formatted_value[%/tr%];`
Note that Thomas suggests using the base English in the file. We don't do this because we don't want to have to modify all of the translation files if we change the value in English.
Then, we create an INI file for each language, in the format placeholder = translated
:
// lang/fr.ini
formatted_value = number_format($value * Model_Exchange::getEurRate(), 2, ',', ' ') . '€'
// lang/en_gb.ini
formatted_value = '£' . number_format($value * Model_Exchange::getStgRate())
// lang/en_us.ini
formatted_value = '$' . number_format($value)
It would be trivial to allow a user to modify these inside the CMS, just get the keypairs by a preg_split
on \n
or =
and making the CMS able to write to the INI files.
Essentially, Thomas suggests using a just-in-time 'compiler' (though, in truth, it's a preprocessor) function like this to take your translation files and create static PHP files on disk. This way, we essentially cache our translated files instead of calling a translation function for every string in the file:
// This function was written by Thomas Bley, not by me
function translate($file) {
$cache_file = 'cache/'.LANG.'_'.basename($file).'_'.filemtime($file).'.php';
// (re)build translation?
if (!file_exists($cache_file)) {
$lang_file = 'lang/'.LANG.'.ini';
$lang_file_php = 'cache/'.LANG.'_'.filemtime($lang_file).'.php';
// convert .ini file into .php file
if (!file_exists($lang_file_php)) {
file_put_contents($lang_file_php, '<?php $strings='.
var_export(parse_ini_file($lang_file), true).';', LOCK_EX);
}
// translate .php into localized .php file
$tr = function($match) use (&$lang_file_php) {
static $strings = null;
if ($strings===null) require($lang_file_php);
return isset($strings[ $match[1] ]) ? $strings[ $match[1] ] : $match[1];
};
// replace all {t}abc{/t} by tr()
file_put_contents($cache_file, preg_replace_callback(
'/\[%tr%\](.*?)\[%\/tr%\]/', $tr, file_get_contents($file)), LOCK_EX);
}
return $cache_file;
}
Note: I didn't verify that the regex works, I didn't copy it from our company server, but you can see how the operation works.
Again, this example is from Thomas Bley, not from me:
// instead of
require("core/example.php");
echo (new example())->now();
// we write
define('LANG', 'en_us');
require(translate('core/example.php'));
echo (new example())->now();
We store the language in a cookie (or session variable if we can't get a cookie) and then retrieve it on every request. You could combine this with an optional $_GET
parameter to override the language, but I don't suggest subdomain-per-language or page-per-language because it'll make it harder to see which pages are popular and will reduce the value of inbound links as you'll have them more scarcely spread.
We like this method of preprocessing for three reasons:
We just add a column for content in our database called language
, then we use an accessor method for the LANG
constant which we defined earlier on, so our SQL calls (using ZF1, sadly) look like this:
$query = select()->from($this->_name)
->where('language = ?', User::getLang())
->where('id = ?', $articleId)
->limit(1);
Our articles have a compound primary key over id
and language
so article 54
can exist in all languages. Our LANG
defaults to en_US
if not specified.
I'd combine two things here, one is a function in your bootstrap which accepts a $_GET
parameter for language and overrides the cookie variable, and another is routing which accepts multiple slugs. Then you can do something like this in your routing:
"/wilkommen" => "/welcome/lang/de"
... etc ...
These could be stored in a flat file which could be easily written to from your admin panel. JSON or XML may provide a good structure for supporting them.
PHP-based On-The-Fly Translation
I can't see that these offer any advantage over pre-processed translations.
Front-end Based Translations
I've long found these interesting, but there are a few caveats. For example, you have to make available to the user the entire list of phrases on your website that you plan to translate, this could be problematic if there are areas of the site you're keeping hidden or haven't allowed them access to.
You'd also have to assume that all of your users are willing and able to use Javascript on your site, but from my statistics, around 2.5% of our users are running without it (or using Noscript to block our sites from using it).
Database-Driven Translations
PHP's database connectivity speeds are nothing to write home about, and this adds to the already high overhead of calling a function on every phrase to translate. The performance & scalability issues seem overwhelming with this approach.
Just a quick update for anyone else who might run into this issue. As of today, changing the %userprofile%\documents\iisexpress\config\applicationhost.config does NOT work any longer (this was working fine until now, not sure if this is due to a Windows update). After hours of frustration, I changed the web.config to add these handlers to system.webserver to get it to work:
<handlers>
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
<remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
<add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
Note: The answer below is written from the perspective of Windows PowerShell.
However, it applies to the cross-platform PowerShell Core edition (v6+) as well, except that the latter - commendably - consistently defaults to BOM-less UTF-8 character encoding, which is the most widely compatible one across platforms and cultures..
To complement bigtv's helpful answer helpful answer with a more concise alternative and background information:
# > $file is effectively the same as | Out-File $file
# Objects are written the same way they display in the console.
# Default character encoding is UTF-16LE (mostly 2 bytes per char.), with BOM.
# Use Out-File -Encoding <name> to change the encoding.
$env:computername > $file
# Set-Content calls .ToString() on each object to output.
# Default character encoding is "ANSI" (culture-specific, single-byte).
# Use Set-Content -Encoding <name> to change the encoding.
# Use Set-Content rather than Add-Content; the latter is for *appending* to a file.
$env:computername | Set-Content $file
When outputting to a text file, you have 2 fundamental choices that use different object representations and, in Windows PowerShell (as opposed to PowerShell Core), also employ different default character encodings:
Out-File
(or >
) / Out-File -Append
(or >>
):
Suitable for output objects of any type, because PowerShell's default output formatting is applied to the output objects.
The default encoding, which can be changed with the -Encoding
parameter, is Unicode
, which is UTF-16LE in which most characters are encoded as 2 bytes. The advantage of a Unicode encoding such as UTF-16LE is that it is a global alphabet, capable of encoding all characters from all human languages.
>
and >>
, via the $PSDefaultParameterValues
preference variable, taking advantage of the fact that >
and >>
are now effectively aliases of Out-File
and Out-File -Append
. To change to UTF-8, for instance, use:$PSDefaultParameterValues['Out-File:Encoding']='UTF8'
For writing strings and instances of types known to have meaningful string representations, such as the .NET primitive data types (Booleans, integers, ...).
.psobject.ToString()
method is called on each output object, which results in meaningless representations for types that don't explicitly implement a meaningful representation; [hashtable]
instances are an example:@{ one = 1 } | Set-Content t.txt
writes literal System.Collections.Hashtable
to t.txt
, which is the result of @{ one = 1 }.ToString()
.The default encoding, which can be changed with the -Encoding
parameter, is Default
, which is the system's "ANSI" code page, a the single-byte culture-specific legacy encoding for non-Unicode applications, most commonly Windows-1252.
Note that the documentation currently incorrectly claims that ASCII is the default encoding.
Note that Add-Content
's purpose is to append content to an existing file, and it is only equivalent to Set-Content
if the target file doesn't exist yet.
Furthermore, the default or specified encoding is blindly applied, irrespective of the file's existing contents' encoding.
Out-File
/ >
/ Set-Content
/ Add-Content
all act culture-sensitively, i.e., they produce representations suitable for the current culture (locale), if available (though custom formatting data is free to define its own, culture-invariant representation - see Get-Help about_format.ps1xml
).
This contrasts with PowerShell's string expansion (string interpolation in double-quoted strings), which is culture-invariant - see this answer of mine.
As for performance: Since Set-Content
doesn't have to apply default formatting to its input, it performs better.
As for the OP's symptom with Add-Content
:
Since $env:COMPUTERNAME
cannot contain non-ASCII characters, Add-Content
's output, using "ANSI" encoding, should not result in ?
characters in the output, and the likeliest explanation is that the ?
were part of the preexisting content in output file $file
, which Add-Content
appended to.
I tried gitosis that is fully command line. And I chose this one.
Being a Java guy, I also looked with interest to Gitblit.
Try:
insert into account_type_standard (account_type_Standard_id, tax_status_id, recipient_id)
select account_type_standard_seq.nextval,
ts.tax_status_id,
( select r.recipient_id
from recipient r
where r.recipient_code = ?
)
from tax_status ts
where ts.tax_status_code = ?
import datetime and then the magic timedelta stuff:
In [63]: datetime.datetime.now()
Out[63]: datetime.datetime(2010, 12, 27, 14, 39, 19, 700401)
In [64]: datetime.datetime.now() - datetime.timedelta(minutes=15)
Out[64]: datetime.datetime(2010, 12, 27, 14, 24, 21, 684435)
Unfortunately you can't animate the display
property. For a full list of what you can animate, try this CSS animation list by w3 Schools.
If you want to retain it's visual position on the page, you should try animating either it's height
(which will still affect the position of other elements), or opacity
(how transparent it is). You could even try animating the z-index
, which is the position on the z axis (depth), by putting an element over the top of it, and then rearranging what's on top. However, I'd suggest using opacity
, as it retains the vertical space where the element is.
I've updated the fiddle to show an example.
Good luck!
Please look at JMockit. It has extensive documentation with a lot of examples. Here you have an example solution of your problem (to simplify I've added constructor to Seasons
to inject mocked RainOnTrees
instance):
package jmockitexample;
import mockit.Mocked;
import mockit.Verifications;
import mockit.integration.junit4.JMockit;
import org.junit.Test;
import org.junit.runner.RunWith;
@RunWith(JMockit.class)
public class SeasonsTest {
@Test
public void shouldStartRain(@Mocked final RainOnTrees rain) {
Seasons seasons = new Seasons(rain);
seasons.findSeasonAndRain();
new Verifications() {{
rain.startRain();
}};
}
public final class RainOnTrees {
public void startRain() {
// some code here
}
}
public class Seasons {
private final RainOnTrees rain;
public Seasons(RainOnTrees rain) {
this.rain = rain;
}
public void findSeasonAndRain() {
rain.startRain();
}
}
}
You can use the following solution:
s="jack"
tup=tuple(s.split(" "))
output=('jack')
If you also want to keep hash and get parameter, you can do something like this (fill redirectMap at filter init):
String uri = request.getRequestURI();
String[] uriParts = uri.split("[#?]");
String path = uriParts[0];
String rest = uri.substring(uriParts[0].length());
if(redirectMap.containsKey(path)) {
response.sendRedirect(redirectMap.get(path) + rest);
} else {
chain.doFilter(request, response);
}
Number((6.688689).toFixed(1)); // 6.7
var number = 6.688689;
var roundedNumber = Math.round(number * 10) / 10;
Use toFixed()
function.
(6.688689).toFixed(); // equal to "7"
(6.688689).toFixed(1); // equal to "6.7"
(6.688689).toFixed(2); // equal to "6.69"
You could also use clip-path
to clip (hide) all overflowing edges but the one you want to show:
.shadow {
box-shadow: 0 4px 4px black;
clip-path: polygon(0 0, 100% 0, 100% 200%, 0 200%);
}
See clip-path (MDN). The arguments to polygon
are the top-left point, the top-right point, the bottom-right point, and the bottom-left point. By setting the bottom edge to 200%
(or whatever number bigger than 100%
) you constrain your overflow to only the bottom edge.
Examples:
.shadow {
box-shadow: 0 0 8px 5px rgba(200, 0, 0, 0.5);
}
.shadow-top {
clip-path: polygon(0% -20%, 100% -20%, 100% 100%, 0% 100%);
}
.shadow-right {
clip-path: polygon(0% 0%, 120% 0%, 120% 100%, 0% 100%);
}
.shadow-bottom {
clip-path: polygon(0% 0%, 100% 0%, 100% 120%, 0% 120%);
}
.shadow-left {
clip-path: polygon(-20% 0%, 100% 0%, 100% 100%, -20% 100%);
}
.shadow-bottom-right {
clip-path: polygon(0% 0%, 120% 0%, 120% 120%, 0% 120%);
}
/* layout for example */
.box {
display: inline-block;
vertical-align: top;
background: #338484;
color: #fff;
width: 4em;
height: 2em;
margin: 1em;
padding: 1em;
}
_x000D_
<div class="box">none</div>
<div class="box shadow shadow-all">all</div>
<div class="box shadow shadow-top">top</div>
<div class="box shadow shadow-right">right</div>
<div class="box shadow shadow-bottom">bottom</div>
<div class="box shadow shadow-left">left</div>
<div class="box shadow shadow-bottom-right">bottom right</div>
_x000D_
That didn't work for me, I used some code parts from web, what I did:
new activity: FullScreenImage with:
package yourpackagename;
import yourpackagename.R;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class FullScreenImage extends Activity {
@SuppressLint("NewApi")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_full);
Bundle extras = getIntent().getExtras();
Bitmap bmp = (Bitmap) extras.getParcelable("imagebitmap");
ImageView imgDisplay;
Button btnClose;
imgDisplay = (ImageView) findViewById(R.id.imgDisplay);
btnClose = (Button) findViewById(R.id.btnClose);
btnClose.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
FullScreenImage.this.finish();
}
});
imgDisplay.setImageBitmap(bmp );
}
}
Then create a xml: layout_full
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ImageView
android:id="@+id/imgDisplay"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scaleType="fitCenter" />
<Button
android:id="@+id/btnClose"
android:layout_width="wrap_content"
android:layout_height="30dp"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="15dp"
android:layout_marginTop="15dp"
android:paddingTop="2dp"
android:paddingBottom="2dp"
android:textColor="#ffffff"
android:text="Close" />
</RelativeLayout>
And finally, send the image name from your mainactivity
final ImageView im = (ImageView)findViewById(R.id.imageView1) ;
im.setBackgroundDrawable(getResources().getDrawable(id1));
im.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(NAMEOFYOURCURRENTACTIVITY.this, FullScreenImage.class);
im.buildDrawingCache();
Bitmap image= im.getDrawingCache();
Bundle extras = new Bundle();
extras.putParcelable("imagebitmap", image);
intent.putExtras(extras);
startActivity(intent);
}
});
One more simple variant -
$ while read line
do
set $line # assigns words in line to positional parameters
echo "$3 $5"
done < file
You probably want something like this overload of String.Join:
String.Join<T> Method (String, IEnumerable<T>)
Docs:
http://msdn.microsoft.com/en-us/library/dd992421.aspx
In your example, you'd use
String.Join("", Client);
When You're Using Kotlin, nothing solved my problem until I change the Builder parameter from 'applicationContext' to 'this'.
This Does Not Work
val dialogDelete = AlertDialog.Builder(applicationContext)
.setTitle("Confirmation")
.setMessage("Delete this photo?")
.setNegativeButton(android.R.string.no){ it, which ->
it.dismiss()
}
dialogDelete.show()
Following Code Works
val dialogDelete = AlertDialog.Builder(this)
.setTitle("Confirmation")
.setMessage("Delete this photo?")
.setNegativeButton(android.R.string.no){ it, which ->
it.dismiss()
}
dialogDelete.show()
While I like the first answer and I hate eval, I'd like to add that there's another way (similar to eval) so if you can go around it and not use it, you better do. But in some cases you may want to call some javascript code before or after some ajax call and if you have this code in a custom attribute instead of ajax you could use this:
var executeBefore = $(el).attr("data-execute-before-ajax");
if (executeBefore != "") {
var fn = new Function(executeBefore);
fn();
}
Or eventually store this in a function cache if you may need to call it multiple times.
Again - don't use eval or this method if you have another way to do that.
The kind of output you are seeing from your byte array ([B@405217f8
) is also an output for a zero length byte array (ie new byte[0]
). It looks like this string is a reference to the array rather than a description of the contents of the array like we might expect from a regular collection's toString()
method.
As with other respondents, I would point you to the String
constructors that accept a byte[]
parameter to construct a string from the contents of a byte array. You should be able to read raw bytes from a socket's InputStream
if you want to obtain bytes from a TCP connection.
If you have already read those bytes as a String
(using an InputStreamReader
), then, the string can be converted to bytes using the getBytes()
function. Be sure to pass in your desired character set to both the String constructor and getBytes()
functions, and this will only work if the byte data can be converted to characters by the InputStreamReader
.
If you want to deal with raw bytes you should really avoid using this stream reader layer.
An alternative that hasn't been listed yet that worked for me is simply using path.resolve
with either separate strings or just one with the whole path:
// comma separated
app.get('/', function(req, res) {
res.sendFile( path.resolve('src', 'app', 'index.html') );
});
Or
// just one string with the path
app.get('/', function(req, res) {
res.sendFile( path.resolve('src/app/index.html') );
});
(Node v6.10.0)
Idea sourced from https://stackoverflow.com/a/14594282/6189078
In order to make a pull request you need to do the following steps:
It took me a while to figure this, hope this will help someone.
You can do this by using /parent::node() in the xpath. Simply append /parent::node() to the child elements xpath.
For example: Let xpath of child element is childElementXpath.
Then xpath of its immediate ancestor would be childElementXpath/parent::node().
Xpath of its next ancestor would be childElementXpath/parent::node()/parent::node()
and so on..
Also, you can navigate to an ancestor of an element using
'childElementXpath/ancestor::*[@attr="attr_value"]'
. This would be useful when you have a known child element which is unique but has a parent element which cannot be uniquely identified.
Checkout the excellent jquery.hotkeys plugin which supports key combinations:
$(document).bind('keydown', 'ctrl+c', fn);
**The following method does the way you want. It filters the array based on all properties values. **
var standardsList = [
{ "Grade": "Math K", "Domain": "Counting & Cardinality" },
{ "Grade": "Math K", "Domain": "Counting & Cardinality" },
{ "Grade": "Math K", "Domain": "Counting & Cardinality" },
{ "Grade": "Math K", "Domain": "Counting & Cardinality" },
{ "Grade": "Math K", "Domain": "Geometry" },
{ "Grade": "Math 1", "Domain": "Counting & Cardinality" },
{ "Grade": "Math 1", "Domain": "Counting & Cardinality" },
{ "Grade": "Math 1", "Domain": "Orders of Operation" },
{ "Grade": "Math 2", "Domain": "Geometry" },
{ "Grade": "Math 2", "Domain": "Geometry" }
];
const removeDupliactes = (values) => {
let concatArray = values.map(eachValue => {
return Object.values(eachValue).join('')
})
let filterValues = values.filter((value, index) => {
return concatArray.indexOf(concatArray[index]) === index
})
return filterValues
}
removeDupliactes(standardsList)
Results this
[{Grade: "Math K", Domain: "Counting & Cardinality"}
{Grade: "Math K", Domain: "Geometry"}
{Grade: "Math 1", Domain: "Counting & Cardinality"}
{Grade: "Math 1", Domain: "Orders of Operation"}
{Grade: "Math 2", Domain: "Geometry"}]
Your code loops until it reads a single word, then exits. So if you give it multiple words it will read the first and exit, while if you give it an empty input, it will loop forever. In any case, it will only print random garbage from uninitialized memory. This is apparently not what you want, but what do you want? If you just want to read and print the first word (if it exists), use if:
if (scanf("%15s", word) == 1)
printf("%s\n", word);
If you want to loop as long as you can read a word, use while:
while (scanf("%15s", word) == 1)
printf("%s\n", word);
Also, as others have noted, you need to give the word array a size that is big enough for your scanf:
char word[16];
Others have suggested testing for EOF instead of checking how many items scanf matched. That's fine for this case, where scanf can't fail to match unless there's an EOF, but is not so good in other cases (such as trying to read integers), where scanf might match nothing without reaching EOF (if the input isn't a number) and return 0.
edit
Looks like you changed your question to match my code which works fine when I run it -- loops reading words until EOF is reached and then exits. So something else is going on with your code, perhaps related to how you are feeding it input as suggested by David
In your specific example you don't need to escape the equals - you only need to escape it if it's part of the key. The properties file format will treat all characters after the first unescaped equals as part of the value.
You could just iterate the result and count them. You don't say what language or client library you are using, but the API does provide a mysql_num_rows function which can tell you the number of rows in a result.
This is exposed in PHP, for example, as the mysqli_num_rows function. As you've edited the question to mention you're using PHP, here's a simple example using mysqli functions:
$link = mysqli_connect("localhost", "user", "password", "database");
$result = mysqli_query($link, "SELECT * FROM table1");
$num_rows = mysqli_num_rows($result);
echo "$num_rows Rows\n";
Just use COUNT(*) - see Counting Rows in the MySQL manual. For example:
SELECT COUNT(*) FROM foo WHERE bar= 'value';
If you'd used a LIMIT clause but want to know how many rows you'd get without it, use SQL_CALC_FOUND_ROWS in your query, followed by SELECT FOUND_ROWS();
SELECT SQL_CALC_FOUND_ROWS * FROM foo
WHERE bar="value"
LIMIT 10;
SELECT FOUND_ROWS();
For very large tables, this isn't going to be particularly efficient, and you're better off running a simpler query to obtain a count and caching it before running your queries to get pages of data.
To me, it works this way:
# Creating the ARRAY from Result.
$array=array();
while($row = $result->fetch_array(MYSQL_ASSOC))
{
# Converting each column to UTF8
$row = array_map('utf8_encode', $row);
array_push($array,$row);
}
json_encode($array);
I had put my images into my drawable folder at the beginning of the project, and it would always give me this error and never build so I:
I have no idea why this worked for me, but it did. Good luck with this mess we call Android Studio.
Despite what people are saying here, you don't need JavaScript at all, you don't even need CSS!!
It's actually very doable and simple with HTML only. You can even show a default image if an image doesn't load. Here's how...
This also works on all browsers, even as far back as IE8 (out of 250,000+ visitors to sites I hosted in September 2015, ZERO people used something worse than IE8, meaning this solution works for literally everything).
Step 1: Reference the image as an object instead of an img. When objects fail they don't show broken icons; they just do nothing. Starting with IE8, you can use Object and Img tags interchangeably. You can resize and do all the glorious stuff you can with regular images too. Don't be afraid of the object tag; it's just a tag, nothing big and bulky gets loaded and it doesn't slow down anything. You'll just be using the img tag by another name. A speed test shows they are used identically.
Step 2: (Optional, but awesome) Stick a default image inside that object. If the image you want actually loads in the object, the default image won't show. So for example you could show a list of user avatars, and if someone doesn't have an image on the server yet, it could show the placeholder image... no javascript or CSS required at all, but you get the features of what takes most people JavaScript.
Here is the code...
<object data="avatar.jpg" type="image/jpg">
<img src="default.jpg" />
</object>
... Yes, it's that simple.
If you want to implement default images with CSS, you can make it even simpler in your HTML like this...
<object class="avatar" data="user21.jpg" type="image/jpg"></object>
...and just add the CSS from this answer -> https://stackoverflow.com/a/32928240/3196360
The best option for your specific case might be:
Right before your close </body>
tag:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="js/vendor/jquery-1.10.2.min.js"><\/script>')</script>
This is probably the easiest way given that your issue is centered around jQuery.
If you wanted a more robust solution you could try:
var online = navigator.onLine;
Read more about the W3C's spec on offline web apps, however be aware that this will work best in modern web browsers, doing so with older web browsers may not work as expected, or at all.
Alternatively, an XHR request to your own server isn't that bad of a method for testing your connectivity. Considering one of the other answers state that there are too many points of failure for an XHR, if your XHR is flawed when establishing it's connection then it'll also be flawed during routine use anyhow. If your site is unreachable for any reason, then your other services running on the same servers will likely be unreachable also. That decision is up to you.
I wouldn't recommend making an XHR request to someone else's service, even google.com for that matter. Make the request to your server, or not at all.
There seems to be some confusion around what being "online" means. Consider that the internet is a bunch of networks, however sometimes you're on a VPN, without access to the internet "at-large" or the world wide web. Often companies have their own networks which have limited connectivity to other external networks, therefore you could be considered "online". Being online only entails that you are connected to a network, not the availability nor reachability of the services you are trying to connect to.
To determine if a host is reachable from your network, you could do this:
function hostReachable() {
// Handle IE and more capable browsers
var xhr = new ( window.ActiveXObject || XMLHttpRequest )( "Microsoft.XMLHTTP" );
// Open new request as a HEAD to the root hostname with a random param to bust the cache
xhr.open( "HEAD", "//" + window.location.hostname + "/?rand=" + Math.floor((1 + Math.random()) * 0x10000), false );
// Issue request and handle response
try {
xhr.send();
return ( xhr.status >= 200 && (xhr.status < 300 || xhr.status === 304) );
} catch (error) {
return false;
}
}
You can also find the Gist for that here: https://gist.github.com/jpsilvashy/5725579
Details on local implementation
Some people have commented, "I'm always being returned false". That's because you're probably testing it out on your local server. Whatever server you're making the request to, you'll need to be able to respond to the HEAD request, that of course can be changed to a GET if you want.
String all = "";
try {
BufferedReader br = new BufferedReader(new FileReader(filePath));
String strLine;
while ((strLine = br.readLine()) != null){
all = all + strLine;
}
} catch (IOException e) {
Log.e("notes_err", e.getLocalizedMessage());
}
You can create a method like
public long getDaysBetweenDates(Date d1, Date d2){
return TimeUnit.MILLISECONDS.toDays(d1.getTime() - d2.getTime());
}
This method will return the number of days between the 2 days.
Any solution work only if List a list(of string)
If you have a generic list of your own Objects like list(of car) where car has n properties, you must loop the PropertiesInfo of each car object.
Look at: http://www.csharptocsharp.com/generate-csv-from-generic-list
According to this post, it's much better now:
// pick out one album
JObject jalbum = albums[0] as JObject;
// Copy to a static Album instance
Album album = jalbum.ToObject<Album>();
Documentation: Convert JSON to a Type
class
& new
are 2 constraints on the generic type parameter T
.
Respectively they ensure:
class
The type argument must be a reference type; this applies also to any class, interface, delegate, or array type.
new
The type argument must have a public parameterless constructor. When used together with other constraints, the new() constraint must be specified last.
Their combination means that the type T
must be a Reference Type (can't be a Value Type), and must have a parameterless constructor.
Example:
struct MyStruct { } // structs are value types
class MyClass1 { } // no constructors defined, so the class implicitly has a parameterless one
class MyClass2 // parameterless constructor explicitly defined
{
public MyClass2() { }
}
class MyClass3 // only non-parameterless constructor defined
{
public MyClass3(object parameter) { }
}
class MyClass4 // both parameterless & non-parameterless constructors defined
{
public MyClass4() { }
public MyClass4(object parameter) { }
}
interface INewable<T>
where T : new()
{
}
interface INewableReference<T>
where T : class, new()
{
}
class Checks
{
INewable<int> cn1; // ALLOWED: has parameterless ctor
INewable<string> n2; // NOT ALLOWED: no parameterless ctor
INewable<MyStruct> n3; // ALLOWED: has parameterless ctor
INewable<MyClass1> n4; // ALLOWED: has parameterless ctor
INewable<MyClass2> n5; // ALLOWED: has parameterless ctor
INewable<MyClass3> n6; // NOT ALLOWED: no parameterless ctor
INewable<MyClass4> n7; // ALLOWED: has parameterless ctor
INewableReference<int> nr1; // NOT ALLOWED: not a reference type
INewableReference<string> nr2; // NOT ALLOWED: no parameterless ctor
INewableReference<MyStruct> nr3; // NOT ALLOWED: not a reference type
INewableReference<MyClass1> nr4; // ALLOWED: has parameterless ctor
INewableReference<MyClass2> nr5; // ALLOWED: has parameterless ctor
INewableReference<MyClass3> nr6; // NOT ALLOWED: no parameterless ctor
INewableReference<MyClass4> nr7; // ALLOWED: has parameterless ctor
}
You can have multiple addresses separated by comma
if (cc.indexOf(',') > 0)
message.setRecipients(Message.RecipientType.CC, InternetAddress.parse(cc));
else
message.setRecipient(Message.RecipientType.CC, new InternetAddress(cc));
To name a few we can use redux-react-session which is having good API for session management like, initSessionService
, refreshFromLocalStorage
, checkAuth
and many other. It also provide some advanced functionality like Immutable JS
.
Alternatively we can leverage react-web-session which provides options like callback
and timeout
.
I know this is an old question, but I faced the same problem recently in Laravel 7 application.
To make renaming columns work I used a tip from this answer where instead of composer require doctrine/dbal
I have issued composer require doctrine/dbal:^2.12.1
because the latest version of doctrine/dbal still throws an error.
Just keep in mind that if you already use a higher version, this answer might not be appropriate for you.
I am using the following to conditionally set the class attr when ng-class can't be used (for example when styling SVG):
ng-attr-class="{{someBoolean && 'class-when-true' || 'class-when-false' }}"
The same approach should work for other attribute types.
(I think you need to be on latest unstable Angular to use ng-attr-, I'm currently on 1.1.4)
I have published an article on working with AngularJS+SVG that talks about this and related issues. http://www.codeproject.com/Articles/709340/Implementing-a-Flowchart-with-SVG-and-AngularJS
Try --allow-unrelated-histories
Like max630 commented, or as explained here Git refusing to merge unrelated histories
From what you have in Jason's comments try:
$('a').click(function() //this will apply to all anchor tags
{
$('#area').val('foobar'); //this puts the textarea for the id labeled 'area'
})
Edit- To append to text look at below
$('a').click(function() //this will apply to all anchor tags
{
$('#area').val($('#area').val()+'foobar');
})
A different take on this question, which might help someone:
I came here because I was debugging in Visual Studio on Windows, and I got confused about all this /
vs \\
discussion (it really should not matter in most cases).
For me, the problem was: the "current directory" was not set to what I wanted in Visual Studio. It defaults to the directory of the executable (depending on how you set up your project).
Change it via: Right-click the solution -> Properties -> Working Directory
I only mention it because the question seems Windows-centric, which generally also means VisualStudio-centric, which tells me this hint might be relevant (:
var html = "<p>Hello, <b>World</b>";
var div = document.createElement("div");
div.innerHTML = html;
alert(div.innerText); // Hello, World
That pretty much the best way of doing it, you're letting the browser do what it does best -- parse HTML.
Edit: As noted in the comments below, this is not the most cross-browser solution. The most cross-browser solution would be to recursively go through all the children of the element and concatenate all text nodes that you find. However, if you're using jQuery, it already does it for you:
alert($("<p>Hello, <b>World</b></p>").text());
Check out the text method.
->
calls/sets object variables. Ex:
$obj = new StdClass;
$obj->foo = 'bar';
var_dump($obj);
=> Sets key/value pairs for arrays. Ex:
$array = array(
'foo' => 'bar'
);
var_dump($array);
Big-O is an upper bound.
Big-Theta is a tight bound, i.e. upper and lower bound.
When people only worry about what's the worst that can happen, big-O is sufficient; i.e. it says that "it can't get much worse than this". The tighter the bound the better, of course, but a tight bound isn't always easy to compute.
The following quote from Wikipedia also sheds some light:
Informally, especially in computer science, the Big O notation often is permitted to be somewhat abused to describe an asymptotic tight bound where using Big Theta notation might be more factually appropriate in a given context.
For example, when considering a function
T(n) = 73n
3+ 22n
2+ 58
, all of the following are generally acceptable, but tightness of bound (i.e., bullets 2 and 3 below) are usually strongly preferred over laxness of bound (i.e., bullet 1 below).
T(n) = O(n
100)
, which is identical toT(n) ? O(n
100)
T(n) = O(n
3)
, which is identical toT(n) ? O(n
3)
T(n) = T(n
3)
, which is identical toT(n) ? T(n
3)
The equivalent English statements are respectively:
T(n)
grows asymptotically no faster thann
100T(n)
grows asymptotically no faster thann
3T(n)
grows asymptotically as fast asn
3.So while all three statements are true, progressively more information is contained in each. In some fields, however, the Big O notation (bullets number 2 in the lists above) would be used more commonly than the Big Theta notation (bullets number 3 in the lists above) because functions that grow more slowly are more desirable.
You cannot create a process in linux that cannot be killed. The root user (uid=0) can send a signal to a process, and there are two signals which cannot be caught, SIGKILL=9, SIGSTOP=19. And other signals (when uncaught) can also result in process termination.
You may want a more general daemonize function, where you can specify a name for your program/daemon, and a path to run your program (perhaps "/" or "/tmp"). You may also want to provide file(s) for stderr and stdout (and possibly a control path using stdin).
Here are the necessary includes:
#include <stdio.h> //printf(3)
#include <stdlib.h> //exit(3)
#include <unistd.h> //fork(3), chdir(3), sysconf(3)
#include <signal.h> //signal(3)
#include <sys/stat.h> //umask(3)
#include <syslog.h> //syslog(3), openlog(3), closelog(3)
And here is a more general function,
int
daemonize(char* name, char* path, char* outfile, char* errfile, char* infile )
{
if(!path) { path="/"; }
if(!name) { name="medaemon"; }
if(!infile) { infile="/dev/null"; }
if(!outfile) { outfile="/dev/null"; }
if(!errfile) { errfile="/dev/null"; }
//printf("%s %s %s %s\n",name,path,outfile,infile);
pid_t child;
//fork, detach from process group leader
if( (child=fork())<0 ) { //failed fork
fprintf(stderr,"error: failed fork\n");
exit(EXIT_FAILURE);
}
if (child>0) { //parent
exit(EXIT_SUCCESS);
}
if( setsid()<0 ) { //failed to become session leader
fprintf(stderr,"error: failed setsid\n");
exit(EXIT_FAILURE);
}
//catch/ignore signals
signal(SIGCHLD,SIG_IGN);
signal(SIGHUP,SIG_IGN);
//fork second time
if ( (child=fork())<0) { //failed fork
fprintf(stderr,"error: failed fork\n");
exit(EXIT_FAILURE);
}
if( child>0 ) { //parent
exit(EXIT_SUCCESS);
}
//new file permissions
umask(0);
//change to path directory
chdir(path);
//Close all open file descriptors
int fd;
for( fd=sysconf(_SC_OPEN_MAX); fd>0; --fd )
{
close(fd);
}
//reopen stdin, stdout, stderr
stdin=fopen(infile,"r"); //fd=0
stdout=fopen(outfile,"w+"); //fd=1
stderr=fopen(errfile,"w+"); //fd=2
//open syslog
openlog(name,LOG_PID,LOG_DAEMON);
return(0);
}
Here is a sample program, which becomes a daemon, hangs around, and then leaves.
int
main()
{
int res;
int ttl=120;
int delay=5;
if( (res=daemonize("mydaemon","/tmp",NULL,NULL,NULL)) != 0 ) {
fprintf(stderr,"error: daemonize failed\n");
exit(EXIT_FAILURE);
}
while( ttl>0 ) {
//daemon code here
syslog(LOG_NOTICE,"daemon ttl %d",ttl);
sleep(delay);
ttl-=delay;
}
syslog(LOG_NOTICE,"daemon ttl expired");
closelog();
return(EXIT_SUCCESS);
}
Note that SIG_IGN indicates to catch and ignore the signal. You could build a signal handler that can log signal receipt, and set flags (such as a flag to indicate graceful shutdown).
Sohnee solutions is cleaner, but you can also try
window["bootbox"]
First check whether the file exists in SDCard. If the file doesnot exists in SDcard then you can set image using setImageResource() methodand passing default image from drawable folder
Sample Code
File imageFile = new File(absolutepathOfImage);//absolutepathOfImage is absolute path of image including its name
if(!imageFile.exists()){//file doesnot exist in SDCard
imageview.setImageResource(R.drawable.defaultImage);//set default image from drawable folder
}
I realize the following suggestion doesn't answer your question, but the simplest method I have found to capture a rapidly-changing DirectX view, is to plug a video camera into the S-video port of the video card, and record the images as a movie. Then transfer the video from the camera back to an MPG, WMV, AVI etc. file on the computer.
You have probably spent many years writing "proper" programs for "proper" computers. You say you are learning to program in Android. This is just one of the things you have to learn. You can't spent years doing watercolour painting and assume that oil painting works exactly the same way. This was the very least of the things that were new concepts to me when I wrote my first app eight years ago.
Use:
li:hover {
cursor: pointer;
}
Other valid values (which hand
is not) for the current HTML specification can be viewed here.
this.setState(
{
originId: input.originId,
destinationId: input.destinationId,
radius: input.radius,
search: input.search
},
function() { console.log("setState completed", this.state) }
)
this might be helpful
For the Submit button, add this code and then set your form target="newwin"
onclick=window.open("about:blank","newwin")
I think one of the easiest ways to achieve this is to replace "continue" with "break" statement,i.e.
for ii in range(200):
for jj in range(200, 400):
...block0...
if something:
break
...block1...
For example, here is the easy code to see how exactly it goes on:
for i in range(10):
print("doing outer loop")
print("i=",i)
for p in range(10):
print("doing inner loop")
print("p=",p)
if p==3:
print("breaking from inner loop")
break
print("doing some code in outer loop")
Using aggregate
is the right approach, but you need to $unwind
the list
array before applying the $match
so that you can filter individual elements and then use $group
to put it back together:
db.test.aggregate([
{ $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
{ $unwind: '$list'},
{ $match: {'list.a': {$gt: 3}}},
{ $group: {_id: '$_id', list: {$push: '$list.a'}}}
])
outputs:
{
"result": [
{
"_id": ObjectId("512e28984815cbfcb21646a7"),
"list": [
4,
5
]
}
],
"ok": 1
}
MongoDB 3.2 Update
Starting with the 3.2 release, you can use the new $filter
aggregation operator to do this more efficiently by only including the list
elements you want during a $project
:
db.test.aggregate([
{ $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
{ $project: {
list: {$filter: {
input: '$list',
as: 'item',
cond: {$gt: ['$$item.a', 3]}
}}
}}
])
This happened to me recently. I was fully migrate to MySQL 5.7, and everything is in default configuration.
All previously answers are already clear and I just want to add something.
This 1406 error could happen in your function / procedure too and not only to your table's column length.
In my case, I've trigger which call procedure with IN parameter varchar(16) but received 32 length value.
I hope this help someone with similar problem.
This error means that records encoding in the file is different with respect to the connection. In this case iconv may return the error, sometimes even despite //IGNORE flag:
iconv -f ASCII -t utf-8//IGNORE < b.txt > /a.txt
iconv: illegal input sequence at position (some number)
The trick is to find incorrect characters and replace it. To do it on Linux use "vim" editor:
vim (your text file), press "ESC": button and type ":goto (number returned by iconv)"
To find non ASCII characters you may use the following command:
grep --color='auto' -P "[\x80-\xFF]"
If you remove incorrect characters please check if you really need to convert your file: probably the problem is already solved.
This code worked for me.
<?php_x000D_
$decoded = base64_decode($base64);_x000D_
$file = 'invoice.pdf';_x000D_
file_put_contents($file, $decoded);_x000D_
_x000D_
if (file_exists($file)) {_x000D_
header('Content-Description: File Transfer');_x000D_
header('Content-Type: application/octet-stream');_x000D_
header('Content-Disposition: attachment; filename="'.basename($file).'"');_x000D_
header('Expires: 0');_x000D_
header('Cache-Control: must-revalidate');_x000D_
header('Pragma: public');_x000D_
header('Content-Length: ' . filesize($file));_x000D_
readfile($file);_x000D_
exit;_x000D_
}_x000D_
?>
_x000D_
In C, there's no (real, distinct type of) strings. Every C "string" is an array of chars, zero terminated.
Therefore, to extract a character c at index i from string your_string, just use
char c = your_string[i];
Index is base 0 (first character is your_string[0], second is your_string[1]...).
create java application in which you define two threads namely t1 and t2, thread t1 will generate random number 0 and 1 (simulate toss a coin ). 0 means head and one means tail. the other thread t2 will do the same t1 and t2 will repeat this loop 100 times and finally your application should determine how many times t1 guesses the number generated by t2 and then display the score. for example if thread t1 guesses 20 number out of 100 then the score of t1 is 20/100 =0.2 if t1 guesses 100 numbers then it gets score 1 and so on
There is no Linq ForEach extension. However, the List
class has a ForEach method on it, if you're willing to use the List
directly.
For what it's worth, the standard foreach
syntax will give you the results you want and it's probably easier to read:
foreach (var x in someValues)
{
list.Add(x + 1);
}
If you're adamant you want an Linq style extension. it's trivial to implement this yourself.
public static void ForEach<T>(this IEnumerable<T> @this, Action<T> action)
{
foreach (var x in @this)
action(x);
}
I've been annoyed by this problem often. Vertical-align would only work on bottom and center, but never top! :-(
It seems I may have stumbled on a solution that works for both table elements and free paragraph elements. I hope we are at least talking similar problem here.
CSS:
p {
font-family: "Times New Roman", Times, serif;
font-size: 15px;
background: #FFFFFF;
margin: 0
margin-top: 3px;
margin-bottom: 10px;
}
For me, the margin settings sorted it out no matter where I put my "p>.../p>" code.
Hope this helps...
Because performance was really important for me, I benchmarked all the functions above.
NOTE: Data from @Simon O'Hanlon's post. Only with size 15000 instead of 10.
library(tidyverse)
library(microbenchmark)
set.seed(123)
df <- data.frame(id = 1:15000,
nas = rep(NA, 15000),
vals = sample(c(1:3, NA), 15000,
repl = TRUE))
df
MadSconeF1 <- function(x) x[, colSums(is.na(x)) != nrow(x)]
MadSconeF2 <- function(x) x[colSums(!is.na(x)) > 0]
BradCannell <- function(x) x %>% select_if(~sum(!is.na(.)) > 0)
SimonOHanlon <- function(x) x[ , !apply(x, 2 ,function(y) all(is.na(y)))]
jsta <- function(x) janitor::remove_empty(x)
SiboJiang <- function(x) x %>% dplyr::select_if(~!all(is.na(.)))
akrun <- function(x) Filter(function(y) !all(is.na(y)), x)
mbm <- microbenchmark(
"MadSconeF1" = {MadSconeF1(df)},
"MadSconeF2" = {MadSconeF2(df)},
"BradCannell" = {BradCannell(df)},
"SimonOHanlon" = {SimonOHanlon(df)},
"SiboJiang" = {SiboJiang(df)},
"jsta" = {jsta(df)},
"akrun" = {akrun(df)},
times = 1000)
mbm
Results:
Unit: microseconds
expr min lq mean median uq max neval cld
MadSconeF1 154.5 178.35 257.9396 196.05 219.25 5001.0 1000 a
MadSconeF2 180.4 209.75 281.2541 226.40 251.05 6322.1 1000 a
BradCannell 2579.4 2884.90 3330.3700 3059.45 3379.30 33667.3 1000 d
SimonOHanlon 511.0 565.00 943.3089 586.45 623.65 210338.4 1000 b
SiboJiang 2558.1 2853.05 3377.6702 3010.30 3310.00 89718.0 1000 d
jsta 1544.8 1652.45 2031.5065 1706.05 1872.65 11594.9 1000 c
akrun 93.8 111.60 139.9482 121.90 135.45 3851.2 1000 a
autoplot(mbm)
mbm %>%
tbl_df() %>%
ggplot(aes(sample = time)) +
stat_qq() +
stat_qq_line() +
facet_wrap(~expr, scales = "free")
Here's a module for calculating SHA1 hashes that is usable for Excel formulas eg. '=SHA1HASH("test")'. To use it, make a new module called 'module_sha1' and copy and paste it all in. This is based on some VBA code from http://vb.wikia.com/wiki/SHA-1.bas, with changes to support passing it a string, and executable from formulas in Excel cells.
' Based on: http://vb.wikia.com/wiki/SHA-1.bas
Option Explicit
Private Type FourBytes
A As Byte
B As Byte
C As Byte
D As Byte
End Type
Private Type OneLong
L As Long
End Type
Function HexDefaultSHA1(Message() As Byte) As String
Dim H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long
DefaultSHA1 Message, H1, H2, H3, H4, H5
HexDefaultSHA1 = DecToHex5(H1, H2, H3, H4, H5)
End Function
Function HexSHA1(Message() As Byte, ByVal Key1 As Long, ByVal Key2 As Long, ByVal Key3 As Long, ByVal Key4 As Long) As String
Dim H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long
xSHA1 Message, Key1, Key2, Key3, Key4, H1, H2, H3, H4, H5
HexSHA1 = DecToHex5(H1, H2, H3, H4, H5)
End Function
Sub DefaultSHA1(Message() As Byte, H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long)
xSHA1 Message, &H5A827999, &H6ED9EBA1, &H8F1BBCDC, &HCA62C1D6, H1, H2, H3, H4, H5
End Sub
Sub xSHA1(Message() As Byte, ByVal Key1 As Long, ByVal Key2 As Long, ByVal Key3 As Long, ByVal Key4 As Long, H1 As Long, H2 As Long, H3 As Long, H4 As Long, H5 As Long)
'CA62C1D68F1BBCDC6ED9EBA15A827999 + "abc" = "A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D"
'"abc" = "A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D"
Dim U As Long, P As Long
Dim FB As FourBytes, OL As OneLong
Dim i As Integer
Dim W(80) As Long
Dim A As Long, B As Long, C As Long, D As Long, E As Long
Dim T As Long
H1 = &H67452301: H2 = &HEFCDAB89: H3 = &H98BADCFE: H4 = &H10325476: H5 = &HC3D2E1F0
U = UBound(Message) + 1: OL.L = U32ShiftLeft3(U): A = U \ &H20000000: LSet FB = OL 'U32ShiftRight29(U)
ReDim Preserve Message(0 To (U + 8 And -64) + 63)
Message(U) = 128
U = UBound(Message)
Message(U - 4) = A
Message(U - 3) = FB.D
Message(U - 2) = FB.C
Message(U - 1) = FB.B
Message(U) = FB.A
While P < U
For i = 0 To 15
FB.D = Message(P)
FB.C = Message(P + 1)
FB.B = Message(P + 2)
FB.A = Message(P + 3)
LSet OL = FB
W(i) = OL.L
P = P + 4
Next i
For i = 16 To 79
W(i) = U32RotateLeft1(W(i - 3) Xor W(i - 8) Xor W(i - 14) Xor W(i - 16))
Next i
A = H1: B = H2: C = H3: D = H4: E = H5
For i = 0 To 19
T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key1), ((B And C) Or ((Not B) And D)))
E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
Next i
For i = 20 To 39
T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key2), (B Xor C Xor D))
E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
Next i
For i = 40 To 59
T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key3), ((B And C) Or (B And D) Or (C And D)))
E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
Next i
For i = 60 To 79
T = U32Add(U32Add(U32Add(U32Add(U32RotateLeft5(A), E), W(i)), Key4), (B Xor C Xor D))
E = D: D = C: C = U32RotateLeft30(B): B = A: A = T
Next i
H1 = U32Add(H1, A): H2 = U32Add(H2, B): H3 = U32Add(H3, C): H4 = U32Add(H4, D): H5 = U32Add(H5, E)
Wend
End Sub
Function U32Add(ByVal A As Long, ByVal B As Long) As Long
If (A Xor B) < 0 Then
U32Add = A + B
Else
U32Add = (A Xor &H80000000) + B Xor &H80000000
End If
End Function
Function U32ShiftLeft3(ByVal A As Long) As Long
U32ShiftLeft3 = (A And &HFFFFFFF) * 8
If A And &H10000000 Then U32ShiftLeft3 = U32ShiftLeft3 Or &H80000000
End Function
Function U32ShiftRight29(ByVal A As Long) As Long
U32ShiftRight29 = (A And &HE0000000) \ &H20000000 And 7
End Function
Function U32RotateLeft1(ByVal A As Long) As Long
U32RotateLeft1 = (A And &H3FFFFFFF) * 2
If A And &H40000000 Then U32RotateLeft1 = U32RotateLeft1 Or &H80000000
If A And &H80000000 Then U32RotateLeft1 = U32RotateLeft1 Or 1
End Function
Function U32RotateLeft5(ByVal A As Long) As Long
U32RotateLeft5 = (A And &H3FFFFFF) * 32 Or (A And &HF8000000) \ &H8000000 And 31
If A And &H4000000 Then U32RotateLeft5 = U32RotateLeft5 Or &H80000000
End Function
Function U32RotateLeft30(ByVal A As Long) As Long
U32RotateLeft30 = (A And 1) * &H40000000 Or (A And &HFFFC) \ 4 And &H3FFFFFFF
If A And 2 Then U32RotateLeft30 = U32RotateLeft30 Or &H80000000
End Function
Function DecToHex5(ByVal H1 As Long, ByVal H2 As Long, ByVal H3 As Long, ByVal H4 As Long, ByVal H5 As Long) As String
Dim H As String, L As Long
DecToHex5 = "00000000 00000000 00000000 00000000 00000000"
H = Hex(H1): L = Len(H): Mid(DecToHex5, 9 - L, L) = H
H = Hex(H2): L = Len(H): Mid(DecToHex5, 18 - L, L) = H
H = Hex(H3): L = Len(H): Mid(DecToHex5, 27 - L, L) = H
H = Hex(H4): L = Len(H): Mid(DecToHex5, 36 - L, L) = H
H = Hex(H5): L = Len(H): Mid(DecToHex5, 45 - L, L) = H
End Function
' Convert the string into bytes so we can use the above functions
' From Chris Hulbert: http://splinter.com.au/blog
Public Function SHA1HASH(str)
Dim i As Integer
Dim arr() As Byte
ReDim arr(0 To Len(str) - 1) As Byte
For i = 0 To Len(str) - 1
arr(i) = Asc(Mid(str, i + 1, 1))
Next i
SHA1HASH = Replace(LCase(HexDefaultSHA1(arr)), " ", "")
End Function
As is defined in RFC 1341:
In the Extended BNF notation of RFC 822, a Content-Type header field value is defined as follows:
Content-Type := type "/" subtype *[";" parameter]
type := "application" / "audio" / "image" / "message" / "multipart" / "text" / "video" / x-token
x-token := < The two characters "X-" followed, with no intervening white space, by any token >
subtype := token
parameter := attribute "=" value
attribute := token
value := token / quoted-string
token := 1*
tspecials := "(" / ")" / "<" / ">" / "@" ; Must be in / "," / ";" / ":" / "\" / <"> ; quoted-string, / "/" / "[" / "]" / "?" / "." ; to use within / "=" ; parameter values
And a list of known MIME types that can follow it (or, as Joe remarks, the IANA source).
As you can see the list is way too big for you to validate against all of them. What you can do is validate against the general format and the type
attribute to make sure that is correct (the set of options is small) and just assume that what follows it is correct (and of course catch any exceptions you might encounter when you put it to actual use).
Also note the comment above:
If another primary type is to be used for any reason, it must be given a name starting with "X-" to indicate its non-standard status and to avoid any potential conflict with a future official name.
You'll notice that a lot of HTTP requests/responses include an X-
header of some sort which are self defined, keep this in mind when validating the types.
Don't use Html.AntiForgeryToken. Instead, use AntiForgery.GetTokens and AntiForgery.Validate from Web API as described in Preventing Cross-Site Request Forgery (CSRF) Attacks in ASP.NET MVC Application.
This method is only one class and doesn't require importing other libraries or reusing code.
Personally I use this script that I made a while ago. Located here but for those who don't want to click on that link you can view it below. It lets the developer use the static method HTTP::GET($url, $options)
to use the get method in curl while being able to pass through custom curl options. You can also use HTTP::POST($url, $options)
but I hardly use that method.
/**
* echo HTTP::POST('http://accounts.kbcomp.co',
* array(
* 'user_name'=>'[email protected]',
* 'user_password'=>'demo1234'
* )
* );
* OR
* echo HTTP::GET('http://api.austinkregel.com/colors/E64B3B/1');
*
*/
class HTTP{
public static function GET($url,Array $options=array()){
$ch = curl_init();
if(count($options>0)){
curl_setopt_array($ch, $options);
curl_setopt($ch, CURLOPT_URL, $url);
$json = curl_exec($ch);
curl_close($ch);
return $json;
}
}
public static function POST($url, $postfields, $options = null){
$ch = curl_init();
$options = array(
CURLOPT_URL=>$url,
CURLOPT_RETURNTRANSFER => TRUE,
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_HEADER => true
//CURLOPT_HTTPHEADER, array('Content-Type:application/json')
);
if(count($options>0)){
curl_setopt_array($ch, $options);
}
$json = curl_exec($ch);
curl_close($ch);
return $json;
}
}
This is the easiest way I found:
BtnUpload.Style.Add("display", "none");
FileUploader.Style.Add("display", "none");
BtnAccept.Style.Add("display", "inherit");
BtnClear.Style.Add("display", "inherit");
I have the opposite in the Else, so it handles displaying them as well. This can go in the Page's Load or in a method to refresh the controls on the page.
If you're still getting a env: ruby_executable_hooks: No such file or directory
when calling some Ruby package, that means RVM left a little gift for you in your $PATH
.
Run the following to find the offending scripts:
grep '#!/usr/bin/env ruby_executable_hooks' /usr/local/bin/*
Then rm
all the matches. You'll have to reinstall all of those libraries with an RVM-free gem
, of course.
This chunk should do the work:
plot(var2 ~ var1, data=subset(dataframe, var3 < 150))
My best regards.
How this works:
hope this can help someone out there:
List list = ..;
String [] stringArray = list.toArray(new String[list.size()]);
great answer from here: https://stackoverflow.com/a/4042464/1547266
I feel that one of the mentioned cons for "Handlebars" isnt' really valid anymore.
Handlebars.java now allows us to share the same template languages for both client and server which is a big win for large projects with 1000+ components that require serverside rendering for SEO
Take a look at https://github.com/jknack/handlebars.java
Similar to several answers like Alex V's and NDavis, but none of them are quite the same.
When already in the branch in question
Using:
git diff master...
Which combines several features:
Update:
This should probably be git diff master
, but also this shows the diff, not the commits as the question specified.
Just wanted to point out, as I struggled with this for a bit
def f(x):
if x < 0:
x = 0
elif x > 100000:
x = 100000
return x
df.applymap(f)
df.describe()
df = df.applymap(f)
df.describe()
def solve(s):
names = list(s.split(" "))
return " ".join([i.capitalize() for i in names])
Takes a input like your name: john doe
Returns the first letter capitalized.(if first character is a number, then no capitalization occurs)
works for any name length
What that build error is telling you, that you have to either have an instance of Program
or make Add
static.
To start Jenkins from command line
Go to the directory where your war file is placed and run the following command:
java -jar jenkins.war
To stop
Ctrl + C
You can add a class to each of your .row
divs to add some space in between them like so:
.spacer {
margin-top: 40px; /* define margin as you see fit */
}
You can then use it like so:
<div class="row spacer">
<div class="span4">...</div>
<div class="span4">...</div>
<div class="span4">...</div>
</div>
<div class="row spacer">
<div class="span4">...</div>
<div class="span4">...</div>
<div class="span4">...</div>
</div>
Ahah! Checkout the previous commit, then checkout the master.
git checkout HEAD^
git checkout -f master
tried what KennyH write but it didn't solved my problem that appear while trying edit style.xml file in my android app, so I just delete the project from eclipse (not from disk of course !!) and import it back ,solved it for me in that case.
First: reload(sys)
and setting some random default encoding just regarding the need of an output terminal stream is bad practice. reload
often changes things in sys which have been put in place depending on the environment - e.g. sys.stdin/stdout streams, sys.excepthook, etc.
The best solution I know for solving the encode problem of print
'ing unicode strings and beyond-ascii str
's (e.g. from literals) on sys.stdout is: to take care of a sys.stdout (file-like object) which is capable and optionally tolerant regarding the needs:
When sys.stdout.encoding
is None
for some reason, or non-existing, or erroneously false or "less" than what the stdout terminal or stream really is capable of, then try to provide a correct .encoding
attribute. At last by replacing sys.stdout & sys.stderr
by a translating file-like object.
When the terminal / stream still cannot encode all occurring unicode chars, and when you don't want to break print
's just because of that, you can introduce an encode-with-replace behavior in the translating file-like object.
Here an example:
#!/usr/bin/env python
# encoding: utf-8
import sys
class SmartStdout:
def __init__(self, encoding=None, org_stdout=None):
if org_stdout is None:
org_stdout = getattr(sys.stdout, 'org_stdout', sys.stdout)
self.org_stdout = org_stdout
self.encoding = encoding or \
getattr(org_stdout, 'encoding', None) or 'utf-8'
def write(self, s):
self.org_stdout.write(s.encode(self.encoding, 'backslashreplace'))
def __getattr__(self, name):
return getattr(self.org_stdout, name)
if __name__ == '__main__':
if sys.stdout.isatty():
sys.stdout = sys.stderr = SmartStdout()
us = u'aouäöü?zß²'
print us
sys.stdout.flush()
The only good reason to change the global default encoding (to UTF-8 only) I think is regarding an application source code decision - and not because of I/O stream encodings issues: For writing beyond-ascii string literals into code without being forced to always use u'string'
style unicode escaping. This can be done rather consistently (despite what anonbadger's article says) by taking care of a Python 2 or Python 2 + 3 source code basis which uses ascii or UTF-8 plain string literals consistently - as far as those strings potentially undergo silent unicode conversion and move between modules or potentially go to stdout. For that, prefer "# encoding: utf-8
" or ascii (no declaration). Change or drop libraries which still rely in a very dumb way fatally on ascii default encoding errors beyond chr #127 (which is rare today).
And do like this at application start (and/or via sitecustomize.py) in addition to the SmartStdout
scheme above - without using reload(sys)
:
...
def set_defaultencoding_globally(encoding='utf-8'):
assert sys.getdefaultencoding() in ('ascii', 'mbcs', encoding)
import imp
_sys_org = imp.load_dynamic('_sys_org', 'sys')
_sys_org.setdefaultencoding(encoding)
if __name__ == '__main__':
sys.stdout = sys.stderr = SmartStdout()
set_defaultencoding_globally('utf-8')
s = 'aouäöü?zß²'
print s
This way string literals and most operations (except character iteration) work comfortable without thinking about unicode conversion as if there would be Python3 only. File I/O of course always need special care regarding encodings - as it is in Python3.
Note: plains strings then are implicitely converted from utf-8 to unicode in SmartStdout
before being converted to the output stream enconding.
Newer versions of PuTTYgen (mine is 0.64) are able to show the OpenSSH public key to be pasted in the linux system in the .ssh/authorized_keys
file, as shown in the following image:
try this
sudo update-secureboot-policy --enroll-key
and restart your system, when restart it shows option and select Mok key and you will work fine.
You can load a Java class from source at runtime. (Using JCI, BeanShell or JavaCompiler)
This would allow you to change the Enum values as you wish.
Note: this wouldn't change any classes which referred to these enums so this might not be very useful in reality.
If you are interested in reading all sheets and merging them together. The best and fastest way to do it
sheet_to_df_map = pd.read_excel('path_to_file.xls', sheet_name=None)
mdf = pd.concat(sheet_to_df_map, axis=0, ignore_index=True)
This will convert all the sheet into a single data frame m_df
There are a number of reasons why the analysis portion of a compiler is normally separated into lexical analysis and parsing ( syntax analysis) phases.
resource___Compilers (2nd Edition) written by- Alfred V. Abo Columbia University Monica S. Lam Stanford University Ravi Sethi Avaya Jeffrey D. Ullman Stanford University
In mysql 5.7.x(replication) this issue can happen because the on the slave user either the password is unmatched or the root user does not exists on master.
For example(in my case):
I created an instance, altered password for the root and before replicating the slave, I dropped the root user. When I made the slave instance this alert appeared on the query: (because I altered the password on master before dropping the root user, and slave was reading from the first log which was actually an alter root user statement)
show slave status\G
So there are 2 solutions that can be applied here:
reset master;
and reconnect slave to master.
I would like to add a resolution that worked for me. Setup: Oracle 11g 64 bits running on Windows 2008 R2 (64 bits OS)
Client is a .net framework 3.5 application (ported from 2.0) compiled with x86 platform setting.
I had the exact same issue of BadImageFormatException. Compiling to 64 bits eliminates the exception but it was not an option for me as my app is using 32 bits activex components who do not work in 64 bits.
I solved the issue by downloading Oracle Instant Client 11 (this is just a bunch of DLL than can be xcopied) from Oracle website, and copying the files in my application files directory. See here : http://www.oracle.com/technetwork/database/features/oci/instant-client-wp-131479.pdf
This has solved the issue, from ProcMon tool I can see that the locally copied oci.dll gets loaded by System.Data.OracleClient and everything is fine.
It could probably be done by changing environment settings like proposed above, but this method has the advantage of not altering any settings on the server configuration.
Late to answer, but no-one has specified that css property with dash won't work in object declaration in jquery:
.css({margin-left:'200px'});//won't work
.css({marginLeft:'200px'});//works
So, do not forget to use quotes if you prefer to use dash style property in jquery code.
.css({'margin-left':'200px'});//works
This is a very old question, but i don't see my understanding here so I will add my 2 cents:
Every level corresponds/maps to a type of user:
Step1 (inside command prompt [I hope you cd TO YOUR FOLDER]) : npm install express
Step 2: Create a file server.js
var fs = require("fs");
var host = "127.0.0.1";
var port = 1337;
var express = require("express");
var app = express();
app.use(express.static(__dirname + "/public")); //use static files in ROOT/public folder
app.get("/", function(request, response){ //root dir
response.send("Hello!!");
});
app.listen(port, host);
Please note, you should add WATCHFILE (or use nodemon) too. Above code is only for a simple connection server.
STEP 3: node server.js
or nodemon server.js
There is now more easy method if you just want host simple HTTP server.
npm install -g http-server
and open our directory and type http-server
Make sure you've set your locale settings right before running the script from the shell, e.g.
$ locale -a | grep "^en_.\+UTF-8"
en_GB.UTF-8
en_US.UTF-8
$ export LC_ALL=en_GB.UTF-8
$ export LANG=en_GB.UTF-8
Docs: man locale
, man setlocale
.
Since it's not mentioned what database you mean I'm assuming SQL Server. Below solution works for both 2005 and 2008.
You have to create table with VARBINARY(MAX)
as one of the columns. In my example I've created Table Raporty
with column RaportPlik
being VARBINARY(MAX)
column.
Method to put file
into database from drive
:
public static void databaseFilePut(string varFilePath) {
byte[] file;
using (var stream = new FileStream(varFilePath, FileMode.Open, FileAccess.Read)) {
using (var reader = new BinaryReader(stream)) {
file = reader.ReadBytes((int) stream.Length);
}
}
using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
using (var sqlWrite = new SqlCommand("INSERT INTO Raporty (RaportPlik) Values(@File)", varConnection)) {
sqlWrite.Parameters.Add("@File", SqlDbType.VarBinary, file.Length).Value = file;
sqlWrite.ExecuteNonQuery();
}
}
This method is to get file
from database and save it on drive
:
public static void databaseFileRead(string varID, string varPathToNewLocation) {
using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
using (var sqlQuery = new SqlCommand(@"SELECT [RaportPlik] FROM [dbo].[Raporty] WHERE [RaportID] = @varID", varConnection)) {
sqlQuery.Parameters.AddWithValue("@varID", varID);
using (var sqlQueryResult = sqlQuery.ExecuteReader())
if (sqlQueryResult != null) {
sqlQueryResult.Read();
var blob = new Byte[(sqlQueryResult.GetBytes(0, 0, null, 0, int.MaxValue))];
sqlQueryResult.GetBytes(0, 0, blob, 0, blob.Length);
using (var fs = new FileStream(varPathToNewLocation, FileMode.Create, FileAccess.Write))
fs.Write(blob, 0, blob.Length);
}
}
}
This method is to get file
from database and put it as MemoryStream
:
public static MemoryStream databaseFileRead(string varID) {
MemoryStream memoryStream = new MemoryStream();
using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
using (var sqlQuery = new SqlCommand(@"SELECT [RaportPlik] FROM [dbo].[Raporty] WHERE [RaportID] = @varID", varConnection)) {
sqlQuery.Parameters.AddWithValue("@varID", varID);
using (var sqlQueryResult = sqlQuery.ExecuteReader())
if (sqlQueryResult != null) {
sqlQueryResult.Read();
var blob = new Byte[(sqlQueryResult.GetBytes(0, 0, null, 0, int.MaxValue))];
sqlQueryResult.GetBytes(0, 0, blob, 0, blob.Length);
//using (var fs = new MemoryStream(memoryStream, FileMode.Create, FileAccess.Write)) {
memoryStream.Write(blob, 0, blob.Length);
//}
}
}
return memoryStream;
}
This method is to put MemoryStream
into database:
public static int databaseFilePut(MemoryStream fileToPut) {
int varID = 0;
byte[] file = fileToPut.ToArray();
const string preparedCommand = @"
INSERT INTO [dbo].[Raporty]
([RaportPlik])
VALUES
(@File)
SELECT [RaportID] FROM [dbo].[Raporty]
WHERE [RaportID] = SCOPE_IDENTITY()
";
using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
using (var sqlWrite = new SqlCommand(preparedCommand, varConnection)) {
sqlWrite.Parameters.Add("@File", SqlDbType.VarBinary, file.Length).Value = file;
using (var sqlWriteQuery = sqlWrite.ExecuteReader())
while (sqlWriteQuery != null && sqlWriteQuery.Read()) {
varID = sqlWriteQuery["RaportID"] is int ? (int) sqlWriteQuery["RaportID"] : 0;
}
}
return varID;
}
Happy coding :-)
If you really need to go this way, then this is what you can do. There are probably better ways of doing it, but this is all that I have at the moment. I did no database calls, I just used dummy data. Please modify the code to fit in with your scenario. I used jQuery
to populate the HTML table
.
In my controller I have the an action method called GetEmployees
that returns a JSON result
with all the employees. This is where you would call your repository to return the users from a database:
public ActionResult GetEmployees()
{
List<User> userList = new List<User>();
User user1 = new User
{
Id = 1,
FirstName = "First name 1",
LastName = "Last name 1"
};
User user2 = new User
{
Id = 2,
FirstName = "First name 2",
LastName = "Last name 2"
};
userList.Add(user1);
userList.Add(user2);
return Json(userList, JsonRequestBehavior.AllowGet);
}
The User class looks like this:
public class User
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
In your view you could have the following:
<div id="users">
<table></table>
</div>
<script>
$(document).ready(function () {
var url = '/Home/GetEmployees';
$.getJSON(url, function (data) {
$.each(data, function (key, val) {
var user = '<tr><td>' + val.FirstName + '</td></tr>';
$('#users table').append(user);
});
});
});
</script>
Regarding the code above: var url = '/Home/GetEmployees';
Home
is the controller and GetEmployees
is the action method that you defined above.
I hope this helps.
UPDATE:
This is how I would have done it..
I always create a view model class for a view. In this case I would have called it something like UserListViewModel
:
public class UserListViewModel
{
IEnumerable<User> Users { get; set; }
}
In my controller I would populate this Users list from a call to the database returning all the users:
public ActionResult List()
{
UserListViewModel viewModel = new UserListViewModel
{
Users = userRepository.GetAllUsers()
};
return View(viewModel);
}
And in my view I would have the following:
<table>
@foreach(User user in Model.Users)
{
<tr>
<td>First Name:</td>
<td>user.FirstName</td>
</tr>
}
</table>
JavaScript-ViewState-Parser:
The parser should work with most non-encrypted ViewStates. It doesn’t handle the serialization format used by .NET version 1 because that version is sorely outdated and therefore too unlikely to be encountered in any real situation.
http://deadliestwebattacks.com/2011/05/29/javascript-viewstate-parser/
Parsing .NET ViewState
A Spirited Peek into ViewState, Part I:
http://deadliestwebattacks.com/2011/05/13/a-spirited-peek-into-viewstate-part-i/
A Spirited Peek into ViewState, Part II:
http://deadliestwebattacks.com/2011/05/25/a-spirited-peek-into-viewstate-part-ii/
Here's an example program that will send myfile.mp3 by streaming it from disk (that is, it doesn't read the whole file into memory before sending the file). The server listens on port 2000.
[Update] As mentioned by @Aftershock in the comments, util.pump
is gone and was replaced with a method on the Stream prototype called pipe
; the code below reflects this.
var http = require('http'),
fileSystem = require('fs'),
path = require('path');
http.createServer(function(request, response) {
var filePath = path.join(__dirname, 'myfile.mp3');
var stat = fileSystem.statSync(filePath);
response.writeHead(200, {
'Content-Type': 'audio/mpeg',
'Content-Length': stat.size
});
var readStream = fileSystem.createReadStream(filePath);
// We replaced all the event handlers with a simple call to readStream.pipe()
readStream.pipe(response);
})
.listen(2000);
Taken from http://elegantcode.com/2011/04/06/taking-baby-steps-with-node-js-pumping-data-between-streams/
Use the following jquery to submit a selectbox with out a submit button. Use "change" instead of click as shown above.
$("selectbox").change(function() {
document.forms["form"].submit();
});
Cheers!
In case anyone else runs into this, I took WhoIsRich's example and modified it a bit. When calling ReadReg I needed to do the following: ReadReg("App", "HKEY_CURRENT_USER\App\Version") which would then be able to read the version number from the registry, if it existed. I also am using HKCU since it does not require admin privileges to write to.
Function ReadReg(RegKey, RegPath)
Const HKEY_CURRENT_USER = &H80000001
Dim objRegistry, oReg
Set objRegistry = CreateObject("Wscript.shell")
Set oReg = GetObject("winmgmts:!root\default:StdRegProv")
if oReg.EnumKey(HKEY_CURRENT_USER, RegKey) = 0 Then
ReadReg = objRegistry.RegRead(RegPath)
else
ReadReg = ""
end if
End Function
Java web start should be enabled.
Check if javaws (Java web start is enabled for your system), Use below command in console to open java control panel.
javaws -viewer
Basically insertion sort works by comparing two elements at a time and selection sort selects the minimum element from the whole array and sorts it.
Conceptually insertion sort keeps on sorting the sub list by comparing two elements till the whole array is sorted while the selection sort selects the minimum element and swaps it to the first position second minimum element to the second position and so on.
Insertion sort can be shown as :
for(i=1;i<n;i++)
for(j=i;j>0;j--)
if(arr[j]<arr[j-1])
temp=arr[j];
arr[j]=arr[j-1];
arr[j-1]=temp;
Selection sort can be shown as :
for(i=0;i<n;i++)
min=i;
for(j=i+1;j<n;j++)
if(arr[j]<arr[min])
min=j;
temp=arr[i];
arr[i]=arr[min];
arr[min]=temp;
WARNING: This tweak is not truly working as it turns out. Sorry for the inconvenience.
Original post below:
I found a solution while playing with Git internals!
Create your empty directory:
$ mkdir path/to/empty-folder
Add it to the index using a plumbing command and the empty tree SHA-1:
$ git update-index --index-info
040000 tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904 path/to/empty-folder
Type the command and then enter the second line. Press Enter and then Ctrl + D to terminate your input. Note: the format is mode [SPACE] type [SPACE] SHA-1hash [TAB] path (the tab is important, the answer formatting does not preserve it).
That's it! Your empty folder is in your index. All you have to do is commit.
This solution is short and apparently works fine (see the EDIT!), but it is not that easy to remember...
The empty tree SHA-1 can be found by creating a new empty Git repository, cd
into it and issue git write-tree
, which outputs the empty tree SHA-1.
EDIT:
I've been using this solution since I found it. It appears to work exactly the same way as creating a submodule, except that no module is defined anywhere.
This leads to errors when issuing git submodule init|update
.
The problem is that git update-index
rewrites the 040000 tree
part into 160000 commit
.
Moreover, any file placed under that path won't ever be noticed by Git, as it thinks they belong to some other repository. This is nasty as it can easily be overlooked!
However, if you don't already (and won't) use any Git submodules in your repository, and the "empty" folder will remain empty or if you want Git to know of its existence and ignore its content, you can go with this tweak. Going the usual way with submodules takes more steps that this tweak.
This answer does not use backticks/template literals/template strings (``
), which are not supported by Internet Explorer.
You could keep the HTML block in an invisible container (like a <script>
) within your HTML code, then use its innerHTML
at runtime in JS
For example:
var div = document.createElement('div');
div.setAttribute('class', 'someClass');
div.innerHTML = document.getElementById('blockOfStuff').innerHTML;
document.getElementById('targetElement').appendChild(div);
_x000D_
.red {
color: red
}
_x000D_
<script id="blockOfStuff" type="text/html">
Here's some random text.
<h1>Including HTML markup</h1>
And quotes too, or as one man said, "These are quotes, but
'these' are quotes too."
</script>
<div id="targetElement" class="red"></div>
_x000D_
Idea from this answer: JavaScript HERE-doc or other large-quoting mechanism?
If you want to insert a particularly long block of HTML in PHP you can use the Nowdoc syntax, like so:
<?php
$some_var = " - <b>isn't that awesome!</b>";
echo
<<<EOT
Here's some random text.
<h1>Including HTML markup</h1>
And quotes too, or as one man said, "These are quotes, but 'these' are quotes too."
<br><br>
The beauty of Nowdoc in PHP is that you can use variables too $some_var
<br><br>
Or even a value contained within an array - be it an array from a variable you've set
yourself, or one of PHP's built-in arrays. E.g. a user's IP: {$_SERVER['REMOTE_ADDR']}
EOT;
?>
Here's a PHP Fiddle demo of the above code that you can run in your browser.
One important thing to note: The <<<EOT
and EOT;
MUST be on their own line, without any preceding whitespace.
One huge advantage of using Nowdoc syntax over the usual starting and stopping your PHP tag is its support for variables. Consider the usual way of doing it (shown in the example below), contrasted to the simplicity of Nowdoc (shown in the example above).
<?php
// Load of PHP code here
?>
Now here's some HTML...<br><br>
Let's pretend that this HTML block is actually a couple of hundred lines long, and we
need to insert loads of variables<br><br>
Hi <?php echo $first_name; ?>!<br><br>
I can see it's your birthday on <?php echo $birthday; ?>, what are you hoping to get?
<?php
// Another big block of PHP here
?>
And some more HTML!
</body>
</html>
Try this, it will insert the list item at index 0;
DropDownList1.Items.Insert(0, new ListItem("Add New", ""));
I've found that the best way to debug is to use the microsoft tool called DTCPing
I've had my fare deal of problems in our old company network, and I've got a few tips:
In my experience, if the DTCPing is able to setup a DTC connection initiated from the client and initiated from the server, your transactions are not the problem any more.
Just want to add my two cents on this old post:
In my opinion, almost all of relational database engines include a commit transaction execution automatically after execute a DDL command even when you have autocommit=false, So you don't need to start a transaction to avoid a potential truncated object creation because It is completely unnecessary.
Many thanks to everyone that has been working on code for this!
I just wanted to add that I've been looking for exactly the same thing, but in my case it's for managing a cache of processed objects to avoid having to re-parse and process objects from ajax calls that may or may not have been cached by the browser. This is especially useful for objects that require a lot of processing, usually anything that isn't in JSON format, but it can get very costly to keep these things cached in a large project or an app/extension that is left running for a long time.
Anyway, I use it for something something like:
var myCache = {
cache: {},
order: [],
size: 0,
maxSize: 2 * 1024 * 1024, // 2mb
add: function(key, object) {
// Otherwise add new object
var size = this.getObjectSize(object);
if (size > this.maxSize) return; // Can't store this object
var total = this.size + size;
// Check for existing entry, as replacing it will free up space
if (typeof(this.cache[key]) !== 'undefined') {
for (var i = 0; i < this.order.length; ++i) {
var entry = this.order[i];
if (entry.key === key) {
total -= entry.size;
this.order.splice(i, 1);
break;
}
}
}
while (total > this.maxSize) {
var entry = this.order.shift();
delete this.cache[entry.key];
total -= entry.size;
}
this.cache[key] = object;
this.order.push({ size: size, key: key });
this.size = total;
},
get: function(key) {
var value = this.cache[key];
if (typeof(value) !== 'undefined') { // Return this key for longer
for (var i = 0; i < this.order.length; ++i) {
var entry = this.order[i];
if (entry.key === key) {
this.order.splice(i, 1);
this.order.push(entry);
break;
}
}
}
return value;
},
getObjectSize: function(object) {
// Code from above estimating functions
},
};
It's a simplistic example and may have some errors, but it gives the idea, as you can use it to hold onto static objects (contents won't change) with some degree of intelligence. This can significantly cut down on any expensive processing requirements that the object had to be produced in the first place.
It boils down to adding android:stretchColumns="*"
to your TableLayout
root and setting android:layout_width="0dp"
to all the children in your TableRow
s.
<TableLayout
android:stretchColumns="*" // Optionally use numbered list "0,1,2,3,..."
>
<TableRow
android:layout_width="0dp"
>
<asp:Button ID="btnGet" runat="server" Text="Get" OnClick="btnGet_Click" OnClientClick="retun callMethod();" />
<script type="text/javascript">
function callMethod() {
//your logic should be here and make sure your logic code note returing function
return false;
}
</script>
You can use the simple program StarUML. The trial version is unlimited and can do almost anything.
Onced installed you can use it to generate great number of uml digrams just by pasting the source code. Class diagram is just one type of it. (It understands not only Java language but C#, C++ and other)
P.S. The program is great for drawing architectural diagrams before you start to code the program.
The @BeforeClass
and @AfterClass
annotated methods will be run exactly once during your test run - at the very beginning and end of the test as a whole, before anything else is run. In fact, they're run before the test class is even constructed, which is why they must be declared static
.
The @Before
and @After
methods will be run before and after every test case, so will probably be run multiple times during a test run.
So let's assume you had three tests in your class, the order of method calls would be:
setUpBeforeClass()
(Test class first instance constructed and the following methods called on it)
setUp()
test1()
tearDown()
(Test class second instance constructed and the following methods called on it)
setUp()
test2()
tearDown()
(Test class third instance constructed and the following methods called on it)
setUp()
test3()
tearDown()
tearDownAfterClass()
Instead of imageElement.src = myImage;
you should use window.location = myImage;
And even after that the browser will display the image itself. You can right click and use "Save Link" for downloading the image.
Check this link for more information.
import matplotlib.pyplot as plt
plt.figure(figsize=(8,8))
plt.subplot(3,2,1)
plt.subplot(3,2,3)
plt.subplot(3,2,5)
plt.subplot(2,2,2)
plt.subplot(2,2,4)
The first code creates the first subplot in a layout that has 3 rows and 2 columns.
The three graphs in the first column denote the 3 rows. The second plot comes just below the first plot in the same column and so on.
The last two plots have arguments (2, 2)
denoting that the second column has only two rows, the position parameters move row wise.
I just recently had this issue and I didn't even believe it was my mistype:
Array("Semester has been set as active!", true)
Array("Failed to set semester as active!". false)
And actually it was! I just accidentally typed "." rather than ","...
Since -f
caused another problem, I developed another solution.
The -f
flag does not solved my problem because my onbuild
image looks for a file in a folder and had to call like this:
-f foo/bar/Dockerfile foo/bar
instead of
-f foo/bar/Dockerfile .
Also note that this is only solution for some cases as -f
flag
Similar to Ghommey's answer, but this also supports old versions of IE and Firefox.
window.onbeforeunload = function (e) {
var message = "Your confirmation message goes here.",
e = e || window.event;
// For IE and Firefox
if (e) {
e.returnValue = message;
}
// For Safari
return message;
};
To "call" means to make a reference in your code to a function that is written elsewhere. This function "call" can be made to the standard Python library (stuff that comes installed with Python), third-party libraries (stuff other people wrote that you want to use), or your own code (stuff you wrote). For example:
#!/usr/env python
import os
def foo():
return "hello world"
print os.getlogin()
print foo()
I created a function called "foo" and called it later on with that print statement. I imported the standard "os" Python library then I called the "getlogin" function within that library.
I slightly modified Garnaph's great solution above. It seemed like his solution modified the iframe size based upon the size right before the event. For my situation (email submission via an iframe) I needed the iframe height to change right after submission. For example show validation errors or "thank you" message after submission.
I just eliminated the nested click() function and put it into my iframe html:
<script type="text/javascript">
jQuery(document).ready(function () {
var frame = $('#IDofiframeInMainWindow', window.parent.document);
var height = jQuery("#IDofContainerInsideiFrame").height();
frame.height(height + 15);
});
</script>
Worked for me, but not sure about cross browser functionality.
You can set the column index using index_col parameter available while reading from spreadsheet in Pandas.
Here is my solution:
Firstly, import pandas as pd:
import pandas as pd
Read in filename using pd.read_excel() (if you have your data in a spreadsheet) and set the index to 'Locality' by specifying the index_col parameter.
df = pd.read_excel('testexcel.xlsx', index_col=0)
At this stage if you get a 'no module named xlrd' error, install it using pip install xlrd
.
For visual inspection, read the dataframe using df.head()
which will print the following output
Now you can fetch the values of the desired columns of the dataframe and print it
I think the implementation below fill the bill quite gracefully.
'''singly linked lists, by Yingjie Lan, December 1st, 2011'''
class linkst:
'''Singly linked list, with pythonic features.
The list has pointers to both the first and the last node.'''
__slots__ = ['data', 'next'] #memory efficient
def __init__(self, iterable=(), data=None, next=None):
'''Provide an iterable to make a singly linked list.
Set iterable to None to make a data node for internal use.'''
if iterable is not None:
self.data, self.next = self, None
self.extend(iterable)
else: #a common node
self.data, self.next = data, next
def empty(self):
'''test if the list is empty'''
return self.next is None
def append(self, data):
'''append to the end of list.'''
last = self.data
self.data = last.next = linkst(None, data)
#self.data = last.next
def insert(self, data, index=0):
'''insert data before index.
Raise IndexError if index is out of range'''
curr, cat = self, 0
while cat < index and curr:
curr, cat = curr.next, cat+1
if index<0 or not curr:
raise IndexError(index)
new = linkst(None, data, curr.next)
if curr.next is None: self.data = new
curr.next = new
def reverse(self):
'''reverse the order of list in place'''
current, prev = self.next, None
while current: #what if list is empty?
next = current.next
current.next = prev
prev, current = current, next
if self.next: self.data = self.next
self.next = prev
def delete(self, index=0):
'''remvoe the item at index from the list'''
curr, cat = self, 0
while cat < index and curr.next:
curr, cat = curr.next, cat+1
if index<0 or not curr.next:
raise IndexError(index)
curr.next = curr.next.next
if curr.next is None: #tail
self.data = curr #current == self?
def remove(self, data):
'''remove first occurrence of data.
Raises ValueError if the data is not present.'''
current = self
while current.next: #node to be examined
if data == current.next.data: break
current = current.next #move on
else: raise ValueError(data)
current.next = current.next.next
if current.next is None: #tail
self.data = current #current == self?
def __contains__(self, data):
'''membership test using keyword 'in'.'''
current = self.next
while current:
if data == current.data:
return True
current = current.next
return False
def __iter__(self):
'''iterate through list by for-statements.
return an iterator that must define the __next__ method.'''
itr = linkst()
itr.next = self.next
return itr #invariance: itr.data == itr
def __next__(self):
'''the for-statement depends on this method
to provide items one by one in the list.
return the next data, and move on.'''
#the invariance is checked so that a linked list
#will not be mistakenly iterated over
if self.data is not self or self.next is None:
raise StopIteration()
next = self.next
self.next = next.next
return next.data
def __repr__(self):
'''string representation of the list'''
return 'linkst(%r)'%list(self)
def __str__(self):
'''converting the list to a string'''
return '->'.join(str(i) for i in self)
#note: this is NOT the class lab! see file linked.py.
def extend(self, iterable):
'''takes an iterable, and append all items in the iterable
to the end of the list self.'''
last = self.data
for i in iterable:
last.next = linkst(None, i)
last = last.next
self.data = last
def index(self, data):
'''TODO: return first index of data in the list self.
Raises ValueError if the value is not present.'''
#must not convert self to a tuple or any other containers
current, idx = self.next, 0
while current:
if current.data == data: return idx
current, idx = current.next, idx+1
raise ValueError(data)
PHP version:
(Remove all deg2rad()
if your coordinates are already in radians.)
$R = 6371; // km
$dLat = deg2rad($lat2-$lat1);
$dLon = deg2rad($lon2-$lon1);
$lat1 = deg2rad($lat1);
$lat2 = deg2rad($lat2);
$a = sin($dLat/2) * sin($dLat/2) +
sin($dLon/2) * sin($dLon/2) * cos($lat1) * cos($lat2);
$c = 2 * atan2(sqrt($a), sqrt(1-$a));
$d = $R * $c;
It refers to the element in the DOM to which the onclick
attribute belongs:
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js">
</script>
<script type="text/javascript">
function func(e) {
$(e).text('there');
}
</script>
<a onclick="func(this)">here</a>
(This example uses jQuery.)
In my case nothing above has worked. After banging my head against the wall for a while I've found out, that I've destroyed the /etc/passwd
entries by running a custom-made-linux-server-setup-bash-script which worked well previously, but this time the regex within the "sed" command erased all the existing entries :D
After copy pasting the default entries from another working linux server I could finally restart sshd.
So don't forget to backup the original /etc/passwd
file before applying any regex replacements on it :)
This worked for me. You can make the SELECT statement more complex, with WHERE and LIMIT clauses.
First duplicate your large table (without the data), run the following query, and then truncate the larger table.
INSERT INTO table_small (SELECT * FROM table_large WHERE column = 'value' LIMIT 100)
Super simple. :-)
It's hard to say without looking at at code. Make sure your function doesn't return more than one object and that you capture any results made from other calls. What do you get for:
@($returnURL).count
Anyway, two suggestions:
Cast the object to string:
...
return [string]$rs
Or just enclose it in double quotes, same as above but shorter to type:
...
return "$rs"
To reload the same page you don't need the 2nd argument. You can just use:
<meta http-equiv="refresh" content="30" />
This triggers a reload every 30 seconds.
for you objects override clone() method
class You_class {
int a;
@Override
public You_class clone() {
You_class you_class = new You_class();
you_class.a = this.a;
return you_class;
}
}
and call .clone() for Vector obj or ArraiList obj....
You can use "os.sep "
import os
pathfile=os.path.dirname(templateFile)
directory = str(pathfile)+os.sep+'output'+os.sep+'log.txt'
rootTree.write(directory)
//Common DLL client, server
public class transferDataTable
{
public class myError
{
public string Message { get; set; }
public int Code { get; set; }
}
public myError Error { get; set; }
public List<string> ColumnNames { get; set; }
public List<string> DataTypes { get; set; }
public List<Object> Data { get; set; }
public int Count { get; set; }
}
public static class ExtensionMethod
{
public static transferDataTable LoadData(this transferDataTable transfer, DataTable dt)
{
if (dt != null)
{
transfer.DataTypes = new List<string>();
transfer.ColumnNames = new List<string>();
foreach (DataColumn c in dt.Columns)
{
transfer.ColumnNames.Add(c.ColumnName);
transfer.DataTypes.Add(c.DataType.ToString());
}
transfer.Data = new List<object>();
foreach (DataRow dr in dt.Rows)
{
foreach (DataColumn col in dt.Columns)
{
transfer.Data.Add(dr[col] == DBNull.Value ? null : dr[col]);
}
}
transfer.Count = dt.Rows.Count;
}
return transfer;
}
public static DataTable GetDataTable(this transferDataTable transfer, bool ConvertToLocalTime = true)
{
if (transfer.Error != null || transfer.ColumnNames == null || transfer.DataTypes == null || transfer.Data == null)
return null;
int columnsCount = transfer.ColumnNames.Count;
DataTable dt = new DataTable();
for (int i = 0; i < columnsCount; i++ )
{
Type colType = Type.GetType(transfer.DataTypes[i]);
dt.Columns.Add(new DataColumn(transfer.ColumnNames[i], colType));
}
int index = 0;
DataRow row = dt.NewRow();
foreach (object o in transfer.Data)
{
if (ConvertToLocalTime && o != null && o.GetType() == typeof(DateTime))
{
DateTime dat = Convert.ToDateTime(o);
row[index] = dat.ToLocalTime();
}
else
row[index] = o == null ? DBNull.Value : o;
index++;
if (columnsCount == index)
{
index = 0;
dt.Rows.Add(row);
row = dt.NewRow();
}
}
return dt;
}
}
//Server
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest, UriTemplate = "json/data")]
transferDataTable _Data();
public transferDataTable _Data()
{
try
{
using (SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["myConnString"]))
{
con.Open();
DataSet ds = new DataSet();
SqlDataAdapter myAdapter = new SqlDataAdapter("SELECT * FROM tbGalleries", con);
myAdapter.Fill(ds, "table");
DataTable dt = ds.Tables["table"];
return new transferDataTable().LoadData(dt);
}
}
catch(Exception ex)
{
return new transferDataTable() { Error = new transferDataTable.myError() { Message = ex.Message, Code = ex.HResult } };
}
}
//Client
Response = Vossa.getAPI(serviceUrl + "json/data");
transferDataTable transfer = new JavaScriptSerializer().Deserialize<transferDataTable>(Response);
if (transfer.Error == null)
{
DataTable dt = transfer.GetDataTable();
dbGrid.ItemsSource = dt.DefaultView;
}
else
MessageBox.Show(transfer.Error.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
On Linux/OS X/Unix to display the groups to which you (or the optionally specified user) belong, use:
id -Gn [user]
which is equivalent to groups [user]
utility which has been obsoleted on Unix.
On OS X/Unix, the command id -p [user]
is suggested for normal interactive.
Explanation on the parameters:
-G
,--groups
- print all group IDs
-n
,--name
- print a name instead of a number, for-ugG
-p
- Make the output human-readable.