In my experience, I always just use an external program to generate the graph (mathematica, gnuplot, matlab, etc.) and export the graph as a pdf or eps file. Then I include it into the document with includegraphics
.
Use android:gravity="top"
modulus is remainders system.
So 7 % 5 = 2.
5 % 7 = 5
3 % 7 = 3
2 % 7 = 2
1 % 7 = 1
When used inside a function to determine the array index. Is it safe programming ? That is a different question. I guess.
My case of working code is:
var request = new XMLHttpRequest();
request.open("GET", "<path_to_file>", false);
request.overrideMimeType("application/json");
request.send(null);
var jsonData = JSON.parse(request.responseText);
console.log(jsonData);
This method nicely does it all in one go.
from glob import glob
subd = [s.rstrip("/") for s in glob(parent_dir+"*/")]
They way I did it was by selecting all of the data
select * from myTable
and then right-clicking on the result set and chose "Save results as..." a csv file.
Opening the csv file in Notepad++ I saw the LF characters not visible in SQL Server result set.
Use the partial
argument of sort()
. For the second highest value:
n <- length(x)
sort(x,partial=n-1)[n-1]
Aggregation implies a relationship where the child can exist independently of the parent. Example: Class (parent) and Student (child). Delete the Class and the Students still exist.
Composition implies a relationship where the child cannot exist independent of the parent. Example: House (parent) and Room (child). Rooms don't exist separate to a House.
The above two are forms of containment (hence the parent-child relationships).
Dependency is a weaker form of relationship and in code terms indicates that a class uses another by parameter or return type.
Dependency is a form of association.
Use position:fixed
, as previously stated, IE6 doesn't recognize position:fixed
, but with some css magic you can get IE6 to behave:
html, body {
height: 100%;
overflow:auto;
}
body #fixedElement {
position:fixed !important;
position: absolute; /*ie6 */
bottom: 0;
}
The !important
flag makes it so you don't have to use a conditional comment for IE. This will have #fixedElement
use position:fixed
in all browsers but IE, and in IE
, position:absolute
will take effect with bottom:0
. This will simulate position:fixed
for IE6
You can set the cookie after having checked if it exists with a value.
$(document).ready(function(){
if ($.cookie('cookie')) { //if cookie isset
//do stuff here like hide a popup when cookie isset
//document.getElementById("hideElement").style.display = "none";
}else{
var CookieSet = $.cookie('cookie', 'value'); //set cookie
}
});
I like the two line approach of jmh_gr.
It won't work with single digit numbers unless you put ()
around the portion of the command before the redirect. since 1>
is a special command "Echo is On" will be redirected to the file.
This example should take care of single digit numbers but not the other special characters such as <
that may be in the string.
(ECHO %strvar%)> tempfile.txt
There is a very good answer to the same question.
Adding following lines to "~/.gitconfig":
[alias]
lg1 = log --graph --abbrev-commit --decorate --date=relative --format=format:'%C(bold blue)%h%C(reset) - %C(bold green)(%ar)%C(reset) %C(white)%s%C(reset) %C(dim white)- %an%C(reset)%C(bold yellow)%d%C(reset)' --all
lg2 = log --graph --abbrev-commit --decorate --format=format:'%C(bold blue)%h%C(reset) - %C(bold cyan)%aD%C(reset) %C(bold green)(%ar)%C(reset)%C(bold yellow)%d%C(reset)%n'' %C(white)%s%C(reset) %C(dim white)- %an%C(reset)' --all
lg = !"git lg1"
To mimic in Visual Basic the way the round function works in Excel, you just have to use: WorksheetFunction.Round(number, decimals)
This way the banking or accounting rounding don't do the rounding.
You can do this either with multiple System.Net.Mail.MailAddress
objects or you can provide a single string containing all of the addresses separated by commas
if you have an array
var subcategories=[{name:"test",desc:"test"}];
function hasCategory(nameStr) {
for(let i=0;i<subcategories.length;i++){
if(subcategories[i].name===nameStr){
return true;
}
}
return false;
}
if you have an object
var category={name:"asd",test:""};
if(category.hasOwnProperty('name')){//or category.name!==undefined
return true;
}else{
return false;
}
After nearly a decade of work — with proposals, proofs-of-concept, discussions and other contributions by the broader web developer community — the CSS Working Group has finally laid some of the groundwork needed for container queries to be written into a future edition of the CSS Containment spec! For more details on how such a feature might work and be used, check out Miriam Suzanne's extensive explainer.
Hopefully it won't be much longer before we see a robust cross-browser implementation of such a system. It's been a grueling wait, but I'm glad that it's no longer something we simply have to accept as an insurmountable limitation of CSS due to cyclic dependencies or infinite loops or what have you (these are still a potential issue in some aspects of the proposed design, but I have faith that the CSSWG will find a way).
Media queries aren't designed to work based on elements in a page. They are designed to work based on devices or media types (hence why they are called media queries). width
, height
, and other dimension-based media features all refer to the dimensions of either the viewport or the device's screen in screen-based media. They cannot be used to refer to a certain element on a page.
If you need to apply styles depending on the size of a certain div
element on your page, you'll have to use JavaScript to observe changes in the size of that div
element instead of media queries.
Alternatively, with more modern layout techniques introduced since the original publication of this answer such as flexbox and standards such as custom properties, you may not need media or element queries after all. Djave provides an example.
put a int
infront of the all the voxelCoord
's...Like this below :
patch = numpyImage [int(voxelCoord[0]),int(voxelCoord[1])- int(voxelWidth/2):int(voxelCoord[1])+int(voxelWidth/2),int(voxelCoord[2])-int(voxelWidth/2):int(voxelCoord[2])+int(voxelWidth/2)]
Here I am providing a negative example where your want to avoid when converting floating number to strings.
float num=99.463;
float tmp1=round(num*1000);
float tmp2=tmp1/1000;
cout << tmp1 << " " << tmp2 << " " << to_string(tmp2) << endl;
You get
99463 99.463 99.462997
Note: the num variable can be any value close to 99.463, you will get the same print out. The point is to avoid the convenient c++11 "to_string" function. It took me a while to get out this trap. The best way is the stringstream and sprintf methods (C language). C++11 or newer should provided a second parameter as the number of digits after the floating point to show. Right now the default is 6. I am positing this so that others won't wast time on this subject.
I wrote my first version, please let me know if you find any bug that needs to be fixed. You can control the exact behavior with the iomanipulator. My function is for showing the number of digits after the decimal point.
string ftos(float f, int nd) {
ostringstream ostr;
int tens = stoi("1" + string(nd, '0'));
ostr << round(f*tens)/tens;
return ostr.str();
}
Many CAs will provide a cert in PKCS7 format.
According to Oracle documentation, the keytool commmand can handle PKCS#7 but sometimes it fails
The keytool command can import X.509 v1, v2, and v3 certificates, and PKCS#7 formatted certificate chains consisting of certificates of that type. The data to be imported must be provided either in binary encoding format or in printable encoding format (also known as Base64 encoding) as defined by the Internet RFC 1421 standard. In the latter case, the encoding must be bounded at the beginning by a string that starts with -----BEGIN, and bounded at the end by a string that starts with -----END.
If the PKCS7 file can't be imported try to transform it from PKCS7 to X.509:
openssl pkcs7 -print_certs -in certificate.p7b -out certificate.cer
I did this for a home folder where all the folders are on the desktops of the corresponding users, reachable through a shortcut which did not have the appropriate permissions, so that users couldn't see it even if it was there. So I used Robocopy with the parameter to overwrite the file with the right settings:
FOR /F "tokens=*" %G IN ('dir /b') DO robocopy "\\server02\Folder with shortcut" "\\server02\home\%G\Desktop" /S /A /V /log+:C:\RobocopyShortcut.txt /XF *.url *.mp3 *.hta *.htm *.mht *.js *.IE5 *.css *.temp *.html *.svg *.ocx *.3gp *.opus *.zzzzz *.avi *.bin *.cab *.mp4 *.mov *.mkv *.flv *.tiff *.tif *.asf *.webm *.exe *.dll *.dl_ *.oc_ *.ex_ *.sy_ *.sys *.msi *.inf *.ini *.bmp *.png *.gif *.jpeg *.jpg *.mpg *.db *.wav *.wma *.wmv *.mpeg *.tmp *.old *.vbs *.log *.bat *.cmd *.zip /SEC /IT /ZB /R:0
As you see there are many file types which I set to ignore (just in case), just set them for your needs or your case scenario.
It was tested on Windows Server 2012, and every switch is documented on Microsoft's sites and others.
In MySQL, <>
means Not Equal To, just like !=
.
mysql> SELECT '.01' <> '0.01';
-> 1
mysql> SELECT .01 <> '0.01';
-> 0
mysql> SELECT 'zapp' <> 'zappp';
-> 1
see the docs for more info
You don't need to have a reportViewer control anywhere - you can create the LocalReport on the fly:
var lr = new LocalReport
{
ReportPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) ?? @"C:\", "Reports", "PathOfMyReport.rdlc"),
EnableExternalImages = true
};
lr.DataSources.Add(new ReportDataSource("NameOfMyDataSet", model));
string mimeType, encoding, extension;
Warning[] warnings;
string[] streams;
var renderedBytes = lr.Render
(
"PDF",
@"<DeviceInfo><OutputFormat>PDF</OutputFormat><HumanReadablePDF>False</HumanReadablePDF></DeviceInfo>",
out mimeType,
out encoding,
out extension,
out streams,
out warnings
);
var saveAs = string.Format("{0}.pdf", Path.Combine(tempPath, "myfilename"));
var idx = 0;
while (File.Exists(saveAs))
{
idx++;
saveAs = string.Format("{0}.{1}.pdf", Path.Combine(tempPath, "myfilename"), idx);
}
using (var stream = new FileStream(saveAs, FileMode.Create, FileAccess.Write))
{
stream.Write(renderedBytes, 0, renderedBytes.Length);
stream.Close();
}
lr.Dispose();
You can also add parameters: (lr.SetParameter())
, handle subreports: (lr.SubreportProcessing+=YourHandler)
, or pretty much anything you can think of.
Have you considered using the "xcopy" command?
The xcopy command will do all that for you.
In my case a folder in my directory named as the git-repository on the server caused the failure.
You will need to add the application.properties
file in your classpath.
If you are using Maven or Gradle, you can just put the file under src/main/resources
.
If you are not using Maven or any other build tools, put that under your src folder and you should be fine.
Then you can just add an entry server.port = xxxx
in the properties file.
You did not assign the "linux" to the question but you mentioned "Linux top". And thus this might be helpful:
Use the small Linux tool threadcpu to identify the most cpu using threads. It calls jstack to get the thread name. And with "sort -n" in pipe you get the list of threads ordered by cpu usage.
More details can be found here: http://www.tuxad.com/blog/archives/2018/10/01/threadcpu_-_show_cpu_usage_of_threads/index.html
And if you still need more details then create a thread dump or run strace on the thread.
TL;DR:
if (navigate) {
return <Redirect to="/" push={true} />
}
The simple and declarative answer is that you need to use <Redirect to={URL} push={boolean} />
in combination with setState()
push: boolean - when true, redirecting will push a new entry onto the history instead of replacing the current one.
import { Redirect } from 'react-router'
class FooBar extends React.Component {
state = {
navigate: false
}
render() {
const { navigate } = this.state
// here is the important part
if (navigate) {
return <Redirect to="/" push={true} />
}
// ^^^^^^^^^^^^^^^^^^^^^^^
return (
<div>
<button onClick={() => this.setState({ navigate: true })}>
Home
</button>
</div>
)
}
}
Full example here. Read more here.
PS. The example uses ES7+ Property Initializers to initialise state. Look here as well, if you're interested.
I had the same problem for one of the activities in my app , one of the causes of this problem is that Theme in the theme editor might be different than the theme defined in the 'styles.xml'.change the Theme in the theme editor to your 'Apptheme' or your custom defined theme(if you have defined). Doing this fixed my issue.
Spring's Web MVC framework is designed around a DispatcherServlet that dispatches requests to handlers, with configurable handler mappings, view resolution, locale and theme resolution as well as support for upload files. The default handler is a very simple Controller interface, just offering a ModelAndView handleRequest(request,response) method. This can already be used for application controllers, but you will prefer the included implementation hierarchy, consisting of, for example AbstractController, AbstractCommandController and SimpleFormController. Application controllers will typically be subclasses of those. Note that you can choose an appropriate base class: if you don't have a form, you don't need a form controller. This is a major difference to Struts
With python >= 3.5
you can use mock_object.assert_not_called()
.
To call helpers, use the helper
object:
$ ./script/console
>> helper.number_to_currency('123.45')
=> "R$ 123,45"
If you want to use a helper that's not included by default (say, because you removed helper :all
from ApplicationController
), just include the helper.
>> include BogusHelper
>> helper.bogus
=> "bogus output"
As for dealing with controllers, I quote Nick's answer:
> app.get '/posts/1' > response = app.response # you now have a rails response object much like the integration tests > response.body # get you the HTML > response.cookies # hash of the cookies # etc, etc
In SQL Server 2016 the wizard is a separate app. (Important: Excel wizard is only available in the 32-bit version of the wizard!). Use the MSDN page for instructions:
On the Start menu, point to All Programs, point toMicrosoft SQL Server , and then click Import and Export Data.
—or—
In SQL Server Data Tools (SSDT), right-click the SSIS Packages folder, and then click SSIS Import and Export Wizard.
—or—
In SQL Server Data Tools (SSDT), on the Project menu, click SSIS Import and Export Wizard.
—or—
In SQL Server Management Studio, connect to the Database Engine server type, expand Databases, right-click a database, point to Tasks, and then click Import Data or Export data.
—or—
In a command prompt window, run DTSWizard.exe, located in C:\Program Files\Microsoft SQL Server\100\DTS\Binn.
After that it should be pretty much the same (possibly with minor variations in the UI) as in @marc_s's answer.
I know that the question is too old, anyway:
select a, b from mytable group by a, b
will give your all the combinations.
brilliant example Jonathan Leffler, to make your code work on SLES, I needed to add an additional header to allow the pid_t object :)
#include <sys/types.h>
I'm like 3 years late but I'll answer it anyway in case someone finds this like I did.
I solved this by simply using this:
if (getIntent().toString().contains("MainActivity")) {
// Do stuff if the current activity is MainActivity
}
Note that "getIntent().toString()" includes a bunch of other text such as your package name and any intent filters for your activity. Technically we're checking the current intent, not activity, but the result is the same. Just use e.g. Log.d("test", getIntent().toString()); if you want to see all the text. This solution is a bit hacky but it's much cleaner in your code and the functionality is the same.
I believe Selenium now uses Key.TAB
instead of Keys.TAB
.
I would solve this like that. First, I'd create an instance of your given datetime object. Then, I'd create another datetime object which is 7 days later than the initial one. And finally, I'd format it the way you like.
With meringue library, this is quite intuitive and elegant. Here's the code:
(new Future(
new FromCustomFormat('F j, Y', 'March 3, 2011'),
new NDays(7)
))
->value();
The result is a string in ISO8601 format. If you like, you can format it anyway you like using the same ISO8601 syntax:
(new ISO8601Formatted(
new Future(
new FromCustomFormat('F j, Y', 'March 3, 2011'),
new NDays(7)
),
'F j, Y'
))
->value();
The code above uses meringue library. Here's a quick start, you can take a look if you want.
The data-toggle attribute simple tell Bootstrap what exactly to do by giving it the name of the toggle action it is about to perform on a target element. If you specify collapse. It means bootstrap will collapse or uncollapse the element pointed by data-target of the action you clicked
Note: the target element must have the appropriate class for bootstrap to carry out the action
Source action:
data-toggle = collapse //type of toggle
data-target = #myDiv
Target:
class=collapse //I can collapse
id=myDiv
This is same for other type of toggle actions like tab, modal, dropdown
If you build an APK for a target screen resolution like HDPI, the Android asset packageing tool,AAPT,can strip out the drawables for other resolution you don’t need.But if it’s in the mipmap folder,then these assets will stay in the APK, regardless of the target resolution.
Right click on your class library, and choose the "Add References" option from the Menu.
And from the .NET tab, select System.Configuration. This would include the System.Configuration DLL file into your project.
Pointer helps to create user defined scope to a variable, which is called Dynamic variable. Dynamic Variable can be single variable or group of variable of same type (array
) or group of variable of different types (struct
). Default local variable scope starts when control enters into a function and ends when control comes out of that function. Default global vairable scope starts at program execution and ends once program finishes.
But scope of a dynamic variable which holds by a pointer can start and end at any point in a program execution, which has to be decided by a programmer. Dangling and memory leak comes into picture only if a programmer doesnt handle the end of scope.
Memory leak will occur if a programmer, doesnt write the code (free
of pointer) for end of scope for dynamic variables. Any way once program exits complete process memory will be freed, at that time this leaked memory also will get freed. But it will cause a very serious problem for a process which is running long time.
Once scope of dynamic variable comes to end(freed), NULL
should be assigned to pointer variable. Otherwise if the code wrongly accesses it undefined behaviour will happen. So dangling pointer is nothing but a pointer which is pointing a dynamic variable whose scope is already finished.
It is easy to change the implementation to List
to Set
:
Collection<String> stringList = new ArrayList<String>();
//Client side
stringList = new LinkedList<String>();
stringList = new HashSet<String>();
//stringList = new HashSet<>(); java 1.7 and 1.8
So I realize this is kind of old, but after much Googling, I couldn't find an answer I was happy with, so I came up with my own solution for breaking a FOR loop that immediately stops iteration, and thought I'd share it.
It requires the loop to be in a separate file, and exploits a bug in CMD error handling to immediately crash the batch processing of the loop file when redirecting the STDOUT of DIR to STDIN.
MainFile.cmd
ECHO Simple test demonstrating loop breaking.
ECHO.
CMD /C %~dp0\LOOP.cmd
ECHO.
ECHO After LOOP
PAUSE
LOOP.cmd
FOR /L %%A IN (1,1,10) DO (
ECHO %%A
IF %%A EQU 3 DIR >&0 2>NUL )
)
When run, this produces the following output. You'll notice that both iteration and execution of the loop stops when %A = 3.
:>MainFile.cmd
:>ECHO Simple test demonstrating loop breaking.
Simple test demonstrating loop breaking.
:>ECHO.
:>CMD /C Z:\LOOP.cmd
:>FOR /L %A IN (1 1 10) DO (
ECHO %A
IF %A EQU 3 DIR 1>&0 2>NUL
)
:>(
ECHO 1
IF 1 EQU 3 DIR 1>&0 2>NUL
)
1
:>(
ECHO 2
IF 2 EQU 3 DIR 1>&0 2>NUL
)
2
:>(
ECHO 3
IF 3 EQU 3 DIR 1>&0 2>NUL
)
3
:>ECHO.
:>ECHO After LOOP
After LOOP
:>PAUSE
Press any key to continue . . .
If you need to preserve a single variable from the loop, have the loop ECHO the result of the variable, and use a FOR /F loop in the MainFile.cmd to parse the output of the LOOP.cmd file.
Example (using the same LOOP.cmd file as above):
MainFile.cmd
@ECHO OFF
ECHO.
ECHO Simple test demonstrating loop breaking.
ECHO.
FOR /F "delims=" %%L IN ('CMD /C %~dp0\LOOP.cmd') DO SET VARIABLE=%%L
ECHO After LOOP
ECHO.
ECHO %VARIABLE%
ECHO.
PAUSE
Output:
:>MainFile.cmd
Simple test demonstrating loop breaking.
After LOOP
3
Press any key to continue . . .
If you need to preserve multiple variables, you'll need to redirect them to temporary files as shown below.
MainFile.cmd
@ECHO OFF
ECHO.
ECHO Simple test demonstrating loop breaking.
ECHO.
CMD /C %~dp0\LOOP.cmd
ECHO After LOOP
ECHO.
SET /P VARIABLE1=<%TEMP%\1
SET /P VARIABLE2=<%TEMP%\2
ECHO %VARIABLE1%
ECHO %VARIABLE2%
ECHO.
PAUSE
LOOP.cmd
@ECHO OFF
FOR /L %%A IN (1,1,10) DO (
IF %%A EQU 1 ECHO ONE >%TEMP%\1
IF %%A EQU 2 ECHO TWO >%TEMP%\2
IF %%A EQU 3 DIR >&0 2>NUL
)
Output:
:>MainFile.cmd
Simple test demonstrating loop breaking.
After LOOP
ONE
TWO
Press any key to continue . . .
I hope others find this useful for breaking loops that would otherwise take too long to exit due to continued iteration.
Note: this answer is outdated. Newer versions of requests
support getting the request content directly, as AntonioHerraizS's answer documents.
It's not possible to get the true raw content of the request out of requests
, since it only deals with higher level objects, such as headers and method type. requests
uses urllib3
to send requests, but urllib3
also doesn't deal with raw data - it uses httplib
. Here's a representative stack trace of a request:
-> r= requests.get("http://google.com")
/usr/local/lib/python2.7/dist-packages/requests/api.py(55)get()
-> return request('get', url, **kwargs)
/usr/local/lib/python2.7/dist-packages/requests/api.py(44)request()
-> return session.request(method=method, url=url, **kwargs)
/usr/local/lib/python2.7/dist-packages/requests/sessions.py(382)request()
-> resp = self.send(prep, **send_kwargs)
/usr/local/lib/python2.7/dist-packages/requests/sessions.py(485)send()
-> r = adapter.send(request, **kwargs)
/usr/local/lib/python2.7/dist-packages/requests/adapters.py(324)send()
-> timeout=timeout
/usr/local/lib/python2.7/dist-packages/requests/packages/urllib3/connectionpool.py(478)urlopen()
-> body=body, headers=headers)
/usr/local/lib/python2.7/dist-packages/requests/packages/urllib3/connectionpool.py(285)_make_request()
-> conn.request(method, url, **httplib_request_kw)
/usr/lib/python2.7/httplib.py(958)request()
-> self._send_request(method, url, body, headers)
Inside the httplib
machinery, we can see HTTPConnection._send_request
indirectly uses HTTPConnection._send_output
, which finally creates the raw request and body (if it exists), and uses HTTPConnection.send
to send them separately. send
finally reaches the socket.
Since there's no hooks for doing what you want, as a last resort you can monkey patch httplib
to get the content. It's a fragile solution, and you may need to adapt it if httplib
is changed. If you intend to distribute software using this solution, you may want to consider packaging httplib
instead of using the system's, which is easy, since it's a pure python module.
Alas, without further ado, the solution:
import requests
import httplib
def patch_send():
old_send= httplib.HTTPConnection.send
def new_send( self, data ):
print data
return old_send(self, data) #return is not necessary, but never hurts, in case the library is changed
httplib.HTTPConnection.send= new_send
patch_send()
requests.get("http://www.python.org")
which yields the output:
GET / HTTP/1.1
Host: www.python.org
Accept-Encoding: gzip, deflate, compress
Accept: */*
User-Agent: python-requests/2.1.0 CPython/2.7.3 Linux/3.2.0-23-generic-pae
As far as I know, the order of the repositories in your pom.xml will also decide the order of the repository access.
As for configuring repositories in settings.xml, I've read that the order of repositories is interestingly enough the inverse order of how the repositories will be accessed.
Here a post where someone explains this curiosity:
http://community.jboss.org/message/576851
if (turnedOn) {
//do stuff when the condition is false or true?
}
else {
//do else of if
}
It can be written like:
if (turnedOn == true) {
//do stuff when the condition is false or true?
}
else { // turnedOn == false or !turnedOn
//do else of if
}
So if your turnedOn
variable is true, if will be called, if is assigned to false, else will be called. boolean values are implicitly assigned to false if you won't assign them explicitly e.q. turnedOn = true
As an extension to @VinaySajip answer. There are additional nargs
worth mentioning.
parser.add_argument('dir', nargs=1, default=os.getcwd())
N (an integer). N arguments from the command line will be gathered together into a list
parser.add_argument('dir', nargs='*', default=os.getcwd())
'*'. All command-line arguments present are gathered into a list. Note that it generally doesn't make much sense to have more than one positional argument with nargs='*'
, but multiple optional arguments with nargs='*'
is possible.
parser.add_argument('dir', nargs='+', default=os.getcwd())
'+'. Just like '*', all command-line args present are gathered into a list. Additionally, an error message will be generated if there wasn’t at least one command-line argument present.
parser.add_argument('dir', nargs=argparse.REMAINDER, default=os.getcwd())
argparse.REMAINDER
. All the remaining command-line arguments are gathered into a list. This is commonly useful for command line utilities that dispatch to other command line utilities
If the nargs
keyword argument is not provided, the number of arguments consumed is determined by the action. Generally this means a single command-line argument will be consumed and a single item (not a list) will be produced.
Edit (copied from a comment by @Acumenus) nargs='?'
The docs say: '?'. One argument will be consumed from the command line if possible and produced as a single item. If no command-line argument is present, the value from default will be produced.
Yes , deleteBy method is supported To use it you need to annotate method with @Transactional
There are 3 location providers in Android.
They are:
gps –> (GPS, AGPS): Name of the GPS location provider. This provider determines location using satellites. Depending on conditions, this provider may take a while to return a location fix. Requires the permission android.permission.ACCESS_FINE_LOCATION.
network –> (AGPS, CellID, WiFi MACID): Name of the network location provider. This provider determines location based on availability of cell tower and WiFi access points. Results are retrieved by means of a network lookup. Requires either of the permissions android.permission.ACCESS_COARSE_LOCATION or android.permission.ACCESS_FINE_LOCATION.
passive –> (CellID, WiFi MACID): A special location provider for receiving locations without actually initiating a location fix. This provider can be used to passively receive location updates when other applications or services request them without actually requesting the locations yourself. This provider will return locations generated by other providers. Requires the permission android.permission.ACCESS_FINE_LOCATION, although if the GPS is not enabled this provider might only return coarse fixes. This is what Android calls these location providers, however, the underlying technologies to make this stuff work is mapped to the specific set of hardware and telco provided capabilities (network service).
The best way is to use the “network” or “passive” provider first, and then fallback on “gps”, and depending on the task, switch between providers. This covers all cases, and provides a lowest common denominator service (in the worst case) and great service (in the best case).
Article Reference : Android Location Providers - gps, network, passive By Nazmul Idris
Code Reference : https://stackoverflow.com/a/3145655/28557
-----------------------Update-----------------------
Now Android have Fused location provider
The Fused Location Provider intelligently manages the underlying location technology and gives you the best location according to your needs. It simplifies ways for apps to get the user’s current location with improved accuracy and lower power usage
Fused location provider provide three ways to fetch location
References :
Official site : http://developer.android.com/google/play-services/location.html
Fused location provider example: GIT : https://github.com/kpbird/fused-location-provider-example
http://blog.lemberg.co.uk/fused-location-provider
--------------------------------------------------------
If you are using tcsh, then edit your ~/.cshrc
file to include the lines:
setenv CLICOLOR 1
setenv LSCOLORS dxfxcxdxbxegedabagacad
Where, like Martin says, LSCOLORS specifies the color scheme you want to use.
To generate the LSCOLORS you want to use, checkout this site
Though this question is rather old and has already been answered, I just want to add a note on how to do proper exception handling in C++11:
std::nested_exception
and std::throw_with_nested
It is described on StackOverflow here and here, how you can get a backtrace on your exceptions inside your code without need for a debugger or cumbersome logging, by simply writing a proper exception handler which will rethrow nested exceptions.
Since you can do this with any derived exception class, you can add a lot of information to such a backtrace! You may also take a look at my MWE on GitHub, where a backtrace would look something like this:
Library API: Exception caught in function 'api_function'
Backtrace:
~/Git/mwe-cpp-exception/src/detail/Library.cpp:17 : library_function failed
~/Git/mwe-cpp-exception/src/detail/Library.cpp:13 : could not open file "nonexistent.txt"
You can force checkout your branch, if you do not want to commit your local changes.
git checkout -f branch_name
There is no place on your phone that you can read the System.out.println();
Instead, if you want to see the result of something either look at your logcat/console
window or make a Toast
or a Snackbar
(if you're on a newer device) appear on the device's screen with the message :)
That's what i do when i have to check for example where it goes in a switch case
code! Have fun coding! :)
I was trying to do the same thing and this is what worked for me (ES6/ES2015):
import myData from './data.json';
I got the solution from this answer on a react-native thread asking the same thing: https://stackoverflow.com/a/37781882/176002
>>> a=range(1,10)
>>> for i in [2,3,7]: a.remove(i)
...
>>> a
[1, 4, 5, 6, 8, 9]
>>> a=range(1,10)
>>> b=map(a.remove,[2,3,7])
>>> a
[1, 4, 5, 6, 8, 9]
While a lot of others should be mentioned, Apache Wicket should be preferred.
Wicket doesn't just reduce lots of boilerplate code, it actually removes it entirely and you can work with excellent separation of business code and markup without mixing the two and a wide variety of other things you can read about from the website.
You want:
int rowNumber=...;
string value = driver.findElement(By.xpath("//div[@id='productOrderContainer']/table/tbody/tr[" + rowNumber +"]/div[id='something']")).getText();
In other words, locate <DIV>
with the id "something" contained within the rowNumber
th <TR>
of the <TABLE>
contained within the <DIV>
with the id "productOrderContainer", and then get its text value (which is what I believe you mean by "get me the value in <div id='something'>
"
On a system where sed
does not have the ability to edit files in place, I think the better solution would be to use perl
:
perl -pi -e 's/foo/bar/g' file.txt
Although this does create a temporary file, it replaces the original because an empty in place suffix/extension has been supplied.
Simply use this script for scroll to top direct.
<script>
$(document).ready(function(){
$("button").click(function(){
($('body').scrollTop(0));
});
});
</script>
Other solutions for Git Bash provided by others didn't work for me. Apparently there is currently a bug/limitation in Git for Windows. See this and this.
I finally managed to get it working after finding this GitHub thread (which provides some additional solutions if you're interested, which might work for you, but didn't for me).
I ended up using the following syntax:
MSYS_NO_PATHCONV=1 docker run --rm -it -v $(pwd):/usr/src/project gcc:4.9
Note the MSYS_NO_PATHCONV=1
in front of the docker
command and $(pwd)
- round brackets, lower-case pwd, no quotes, no backslashes.
Also, I'm using Linux containers on Windows if that matters..
I tested this in the new Windows Terminal, ConEmu and GitBash, and all of them worked for me.
setup.py
is Python's answer to a multi-platform installer and make
file.
If you’re familiar with command line installations, then make && make install
translates to python setup.py build && python setup.py install
.
Some packages are pure Python, and are only byte compiled. Others may contain native code, which will require a native compiler (like gcc
or cl
) and a Python interfacing module (like swig
or pyrex
).
Simply put:
SELECT *
FROM TABLE_NAME
WHERE
dob > '1/21/2012'
Where 1/21/2012 is the date and you want all data, including that date.
SELECT *
FROM TABLE_NAME
WHERE
dob BETWEEN '1/21/2012' AND '2/22/2012'
Use a between if you're selecting time between two dates
UTF-8 is not a character set, it's an encoding. The character set for UTF-8 is Unicode. If you want to store Unicode text you use the nvarchar
data type.
If the database would use UTF-8 to store text, you would still not get the text out as encoded UTF-8 data, you would get it out as decoded text.
You can easily store UTF-8 encoded text in the database, but then you don't store it as text, you store it as binary data (varbinary
).
flush();
Flushing is the process of synchronizing the underlying persistent store with persistable state held in memory. It will update or insert into your tables in the running transaction, but it may not commit those changes.
You need to flush in batch processing otherwise it may give OutOfMemoryException.
Commit();
Commit will make the database commit. When you have a persisted object and you change a value on it, it becomes dirty and hibernate needs to flush these changes to your persistence layer. So, you should commit but it also ends the unit of work (transaction.commit()
).
In my case failure was caused by com.android.providers.media
app. I faced this on x86 android emulator. What did I do:
$ adb shell df
Filesystem Size Used Free Blksize
...
/data 224M 209M 14M 4096
....
Too low free space on /data
$ adb shell du /data
...
409870 /data/data/com.android.providers.media
...
Almost all was consumed by single app! It's system app so I consider better not to delete it. Instead I cleaned up app data.
$ adb shell pm clear com.android.providers.media
Success
$ adb shell df
Filesystem Size Used Free Blksize
...
/data 224M 8M 215M 4096
...
Disk was cleared and app installed successfully.
Well, what I do on every project is a mix of the options above.
First, add the jsr310 dependency:
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
</dependency>
Important detail: put this dependency on the top of your depedencies list. I already see a project where the Localdate error persists even with this dependency on the pom.xml. But changing the order of the depedency the error was gone.
On your /src/main/resources/application.yml
file, setup the write-dates-as-timestamps
property:
spring:
jackson:
serialization:
write-dates-as-timestamps: false
And create a ObjectMapper
bean as this:
@Configuration
public class WebConfigurer {
@Bean
@Primary
public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = builder.build();
objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
return objectMapper;
}
}
Following this configuration, the conversion always work on Spring Boot 1.5.x without any error.
Working with Spring AMQP, pay attention if you have a new instance of Jackson2JsonMessageConverter
(common thing when creating a SimpleRabbitListenerContainerFactory
). You need to pass the ObjectMapper
bean to it, like:
Jackson2JsonMessageConverter converter = new Jackson2JsonMessageConverter(objectMapper);
Otherwise, you will receive the same error.
Just recently I forked a current Github project called "RibbonMenu" and edited it to fit my needs:
https://github.com/jaredsburrows/RibbonMenu
ActionBar with Menu out
ActionBar with Menu out and search selected
When SET QUOTED_IDENTIFIER is OFF, literal strings in expressions can be delimited by single or double quotation marks.
If a literal string is delimited by double quotation marks, the string can contain embedded single quotation marks, such as apostrophes.
I think this will do it:
SELECT * FROM MyTable WHERE mydate > now()::date - 365;
You can also try to set a HostnameVerifier as described here. This worked for me to avoid this error.
// Do not do this in production!!!
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
DefaultHttpClient client = new DefaultHttpClient();
SchemeRegistry registry = new SchemeRegistry();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
registry.register(new Scheme("https", socketFactory, 443));
SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);
DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());
// Set verifier
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
// Example send http request
final String url = "https://encrypted.google.com/";
HttpPost httpPost = new HttpPost(url);
HttpResponse response = httpClient.execute(httpPost);
Pre-increment means that the variable is incremented BEFORE it's evaluated in the expression. Post-increment means that the variable is incremented AFTER it has been evaluated for use in the expression.
Therefore, look carefully and you'll see that all three assignments are arithmetically equivalent.
I'm not sure what you're trying to do, but here's something to consider: c();
won't do anything. c
is an instance of the class checkbox
and not a method to be called. So consider this:
public class FirstWindow extends JFrame { public FirstWindow() { checkbox c = new checkbox(); c.yourMethod(yourParameters); // call the method you made in checkbox } } public class checkbox extends JFrame { public checkbox(yourParameters) { // this is the constructor method used to initialize instance variables } public void yourMethod() // doesn't have to be void { // put your code here } }
No there is no built-in String method. You can convert it to a char array, sort it using Arrays.sort and convert that back into a String.
String test= "edcba";
char[] ar = test.toCharArray();
Arrays.sort(ar);
String sorted = String.valueOf(ar);
Or, when you want to deal correctly with locale-specific stuff like uppercase and accented characters:
import java.text.Collator;
import java.util.Arrays;
import java.util.Comparator;
import java.util.Locale;
public class Test
{
public static void main(String[] args)
{
Collator collator = Collator.getInstance(new Locale("fr", "FR"));
String original = "éDedCBcbAàa";
String[] split = original.split("");
Arrays.sort(split, collator);
String sorted = "";
for (int i = 0; i < split.length; i++)
{
sorted += split[i];
}
System.out.println(sorted); // "aAàbBcCdDeé"
}
}
Never tried it, but git help ignore
suggests that if you put a .gitignore
with *.js
in /public/static
, it will do what you want.
Note: make sure to also check out Joeys' answer below: if you want to ignore files in a specific subdirectory, then a local .gitignore is the right solution (locality is good). However if you need the same pattern to apply to your whole repo, then the ** solution is better.
I had the same problem and passing auth_plugin='mysql_native_password'
did not work, because I accidentally installed mysql-connector
instead of mysql-connector-python
(via pip3). Just leaving this here in case it helps someone.
If your project is .net Core 3.1 API project.
update your Startup.cs in your .net core project to:
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
readonly string MyAllowSpecificOrigins = "_myAllowSpecificOrigins";
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddCors(options =>
{
options.AddPolicy(MyAllowSpecificOrigins,
builder =>
{
builder.WithOrigins("http://localhost:53135",
"http://localhost:4200"
)
.AllowAnyHeader()
.AllowAnyMethod();
});
});
services.AddDbContext<CIVDataContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("CIVDatabaseConnection")));
services.AddControllers();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseCors(MyAllowSpecificOrigins);
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
In Controller
if (MyModal.ImageFile != null)
{
MyModal.ImageURL = string.Format("{0}.{1}", Guid.NewGuid().ToString(), MyModal.ImageFile.FileName.Split('.').LastOrDefault());
if (MyModal.ImageFile != null)
{
var path = Path.Combine(Server.MapPath("~/Content/uploads/"), MyModal.ImageURL);
MyModal.ImageFile.SaveAs(path);
}
}
In View
<input type="hidden" value="" name="..."><input id="ImageFile" type="file" name="ImageFile" src="@Model.ImageURL">
In Modal Class
public HttpPostedFileBase ImageFile { get; set; }
Create a folder as uploads in Content folder in project
If you just want a button to open up a new window, then something like this works:
btnOpenNewWindow.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent event) {
Parent root;
try {
root = FXMLLoader.load(getClass().getClassLoader().getResource("path/to/other/view.fxml"), resources);
Stage stage = new Stage();
stage.setTitle("My New Stage Title");
stage.setScene(new Scene(root, 450, 450));
stage.show();
// Hide this current window (if this is what you want)
((Node)(event.getSource())).getScene().getWindow().hide();
}
catch (IOException e) {
e.printStackTrace();
}
}
}
From what I gather, Matz does not like the construct
begin
<multiple_lines_of_code>
end while <cond>
because, it's semantics is different than
<single_line_of_code> while <cond>
in that the first construct executes the code first before checking the condition, and the second construct tests the condition first before it executes the code (if ever). I take it Matz prefers to keep the second construct because it matches one line construct of if statements.
I never liked the second construct even for if statements. In all other cases, the computer executes code left-to-right (eg. || and &&) top-to-bottom. Humans read code left-to-right top-to-bottom.
I suggest the following constructs instead:
if <cond> then <one_line_code> # matches case-when-then statement
while <cond> then <one_line_code>
<one_line_code> while <cond>
begin <multiple_line_code> end while <cond> # or something similar but left-to-right
I don't know if those suggestions will parse with the rest of the language. But in any case I prefere keeping left-to-right execution as well as language consistency.
The statement "its best to leave these things alone and let the compiler do the work.." (Cody Brocious) is complete rubish. I have been programming high performance game code for 20 years, and I have yet to come across a compiler that is 'smart enough' to know which code should be inlined (functions) or not. It would be useful to have a "inline" statement in c#, truth is that the compiler just doesnt have all the information it needs to determine which function should be always inlined or not without the "inline" hint. Sure if the function is small (accessor) then it might be automatically inlined, but what if it is a few lines of code? Nonesense, the compiler has no way of knowing, you cant just leave that up to the compiler for optimized code (beyond algorithims).
Create a base class for your ViewModels
with the following constructor code which will apply the DefaultValueAttributes
when any inheriting model is created.
public abstract class BaseViewModel
{
protected BaseViewModel()
{
// apply any DefaultValueAttribute settings to their properties
var propertyInfos = this.GetType().GetProperties();
foreach (var propertyInfo in propertyInfos)
{
var attributes = propertyInfo.GetCustomAttributes(typeof(DefaultValueAttribute), true);
if (attributes.Any())
{
var attribute = (DefaultValueAttribute) attributes[0];
propertyInfo.SetValue(this, attribute.Value, null);
}
}
}
}
And inherit from this in your ViewModels:
public class SearchModel : BaseViewModel
{
[DefaultValue(true)]
public bool IsMale { get; set; }
[DefaultValue(true)]
public bool IsFemale { get; set; }
}
This should work
render(){_x000D_
_x000D_
var payments = [];_x000D_
_x000D_
for(let i = 0; i < noGuest; i++){_x000D_
_x000D_
payments.push(_x000D_
<View key = {i}>_x000D_
<View>_x000D_
<TextInput />_x000D_
</View>_x000D_
<View>_x000D_
<TextInput />_x000D_
</View>_x000D_
<View>_x000D_
<TextInput />_x000D_
</View>_x000D_
</View>_x000D_
)_x000D_
}_x000D_
_x000D_
return (_x000D_
<View>_x000D_
<View>_x000D_
<View><Text>No</Text></View>_x000D_
<View><Text>Name</Text></View>_x000D_
<View><Text>Preference</Text></View>_x000D_
</View>_x000D_
_x000D_
{ payments }_x000D_
</View>_x000D_
)_x000D_
}
_x000D_
Have you checked your folder structure? It seems to me like Express can't find your root directory, which should be a a folder named "site" right under your default directory. Here is how it should look like, according to the tutorial:
node_modules/
.bin/
express/
mongoose/
path/
site/
css/
img/
js/
index.html
package.json
For example on my machine, I started getting the same error as you when I renamed my "site" folder as something else. So I would suggest you check that you have the index.html page inside a "site" folder that sits on the same path as your server.js file.
Hope that helps!
I had a similar issue and had to do the following to the pool.d/www.conf
file
php_admin_value[error_log] = /var/log/fpm-php.www.log
php_admin_flag[log_errors] = on
It still wasn't writing the log file so I actually had to create it by touch /var/log/fpm-php.www.log
then setting the correct owner sudo chown www-data:www-data /var/log/fpm-php.www.log
.
Once this was done, and php5-fpm restarted, logging was resumed.
In addition to the Javascript solutions above, you can also use an HTML 5 solution by marking the radio buttons as required in the markup. This will eliminate the need for any Javascript and let the browser do the work for you.
See HTML5: How to use the "required" attribute with a "radio" input field for more information on how to do this well.
As a first option to whomever lands here like I did, follow whatever this suggests you to do:
brew doctor
It's the safest path, and amongst other things, it suggested me to:
sudo chown -R $(whoami) /usr/local
which solved that permissions issue.
The OP did just that but apparently didn't get the above suggestion; you might, and it's always better to start there, and only then look for non trivial solutions if it didn't help.
You can use IOUtils.write(byte[] data, OutputStream output) from Apache Commons IO.
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128);
SecretKey key = kgen.generateKey();
byte[] encoded = key.getEncoded();
FileOutputStream output = new FileOutputStream(new File("target-file"));
IOUtils.write(encoded, output);
^(0|[1-9][0-9]*)$
Uncomment the line extension=php_mysql.dll
in your "php.ini" file and restart Apache.
Additionally, "libmysql.dll" file must be available to Apache, i.e., it must be either in available in Windows systems PATH or in Apache working directory.
See more about installing MySQL extension in manual.
P.S. I would advise to consider MySQL extension as deprecated and to use MySQLi or even PDO for working with databases (I prefer PDO).
I tried it by recursively appending each script
Note If your scripts are dependent one after other, then position will need to be in sync.
Major Dependency should be in last in array so that initial scripts can use it
const scripts = ['https://www.gstatic.com/firebasejs/6.2.0/firebase-storage.js', 'https://www.gstatic.com/firebasejs/6.2.0/firebase-firestore.js', 'https://www.gstatic.com/firebasejs/6.2.0/firebase-app.js']_x000D_
let count = 0_x000D_
_x000D_
_x000D_
const recursivelyAddScript = (script, cb) => {_x000D_
const el = document.createElement('script')_x000D_
el.src = script_x000D_
if(count < scripts.length) {_x000D_
count ++_x000D_
el.onload = recursivelyAddScript(scripts[count])_x000D_
document.body.appendChild(el)_x000D_
} else {_x000D_
console.log('All script loaded')_x000D_
return_x000D_
}_x000D_
}_x000D_
_x000D_
recursivelyAddScript(scripts[count])
_x000D_
The for
attribute associates the label with a control element, as defined in the description of label
in the HTML 4.01 spec. This implies, among other things, that when the label
element receives focus (e.g. by being clicked on), it passes the focus on to its associated control. The association between a label and a control may also be used by speech-based user agents, which may give the user a way to ask what the associated label is, when dealing with a control. (The association may not be as obvious as in visual rendering.)
In the first example in the question (without the for
), the use of label
markup has no logical or functional implication – it’s useless, unless you do something with it in CSS or JavaScript.
HTML specifications do not make it mandatory to associate labels with controls, but Web Content Accessibility Guidelines (WCAG) 2.0 do. This is described in the technical document H44: Using label elements to associate text labels with form controls, which also explains that the implicit association (by nesting e.g. input
inside label
) is not as widely supported as the explicit association via for
and id
attributes,
As commented by Chris, enums require much more memory on Android that adds up as they keep being used everywhere. You should try IntDef or StringDef instead, which use annotations so that the compiler validates passed values.
public abstract class ActionBar {
...
@IntDef({NAVIGATION_MODE_STANDARD, NAVIGATION_MODE_LIST, NAVIGATION_MODE_TABS})
@Retention(RetentionPolicy.SOURCE)
public @interface NavigationMode {}
public static final int NAVIGATION_MODE_STANDARD = 0;
public static final int NAVIGATION_MODE_LIST = 1;
public static final int NAVIGATION_MODE_TABS = 2;
@NavigationMode
public abstract int getNavigationMode();
public abstract void setNavigationMode(@NavigationMode int mode);
It can also be used as flags, allowing for binary composition (OR / AND operations).
EDIT: It seems that transforming enums into ints is one of the default optimizations in Proguard.
According to http://wiki.python.org/moin/TkInter :
If it fails with "No module named _tkinter", your Python configuration needs to be modified to include this module (which is an extension module implemented in C). Do not edit Modules/Setup (it is out of date). You may have to install Tcl and Tk (when using RPM, install the -devel RPMs as well) and/or edit the setup.py script to point to the right locations where Tcl/Tk is installed. If you install Tcl/Tk in the default locations, simply rerunning "make" should build the _tkinter extension.
What worked for me was
<WebBrowser Source="pack://siteoforigin:,,,/StartPage.html" />
from here. I copied StartPage.html to the same output directory as the xaml-file and it loaded it from that relative path.
You should use
if (e.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse response = (HttpWebResponse)ex.Response;
if (response.StatusCode == HttpStatusCode.NotFound)
System.Diagnostics.Debug.WriteLine("Not found!");
}
How about something like this ...
var l1 = new List<int>() { 1,2,3,4,5,2,2,2,4,4,4,1 };
var g = l1.GroupBy( i => i );
foreach( var grp in g )
{
Console.WriteLine( "{0} {1}", grp.Key, grp.Count() );
}
Edit per comment: I will try and do this justice. :)
In my example, it's a Func<int, TKey>
because my list is ints. So, I'm telling GroupBy how to group my items. The Func takes a int and returns the the key for my grouping. In this case, I will get an IGrouping<int,int>
(a grouping of ints keyed by an int). If I changed it to (i => i.ToString()
) for example, I would be keying my grouping by a string. You can imagine a less trivial example than keying by "1", "2", "3" ... maybe I make a function that returns "one", "two", "three" to be my keys ...
private string SampleMethod( int i )
{
// magically return "One" if i == 1, "Two" if i == 2, etc.
}
So, that's a Func that would take an int and return a string, just like ...
i => // magically return "One" if i == 1, "Two" if i == 2, etc.
But, since the original question called for knowing the original list value and it's count, I just used an integer to key my integer grouping to make my example simpler.
The preferred method is to use the react router IndexRoutes component
You use it like this (taken from the react router docs linked above):
<Route path="/" component={App}>
<IndexRedirect to="/welcome" />
<Route path="welcome" component={Welcome} />
<Route path="about" component={About} />
</Route>
Forget float, margin and html 3/5. The mail is very obsolete. You need do all with table. One line = one table. You need margin or padding ? Do another column.
Example : i need one line with 1 One Picture of 40*40 2 One margin of 10 px 3 One text of 400px
I start my line :
<table style=" background-repeat:no-repeat; width:450px;margin:0;" cellpadding="0" cellspacing="0" border="0">
<tr style="height:40px; width:450px; margin:0;">
<td style="height:40px; width:40px; margin:0;">
<img src="" style="width=40px;height40;margin:0;display:block"
</td>
<td style="height:40px; width:10px; margin:0;">
</td>
<td style="height:40px; width:400px; margin:0;">
<p style=" margin:0;"> my text </p>
</td>
</tr>
</table>
Tomcat Server fails to start and throws the exception because, inside the section Deployment Descriptor:MyProyect / Servlet Mappings
there are mappings that don´t exist. Delete or correct those elements; then starting the server works without problems.
Do keep in mind that you don't need a stable sort if you compare all members. The 2.0 solution, as requested, can look like this:
public void SortList() {
MyList.Sort(delegate(MyClass a, MyClass b)
{
int xdiff = a.x.CompareTo(b.x);
if (xdiff != 0) return xdiff;
else return a.y.CompareTo(b.y);
});
}
Do note that this 2.0 solution is still preferable over the popular 3.5 Linq solution, it performs an in-place sort and does not have the O(n) storage requirement of the Linq approach. Unless you prefer the original List object to be untouched of course.
You set these configs either in the /etc/ansible/ansible.cfg
or ~/.ansible.cfg
or ansible.cfg
(in your current directory) file
[ssh_connection]
ssh_args = -C -o ControlMaster=auto -o ControlPersist=60s -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no
tested with ansible 2.9.6 in ubuntu 20.04
Link to the PEP discussing the new bool type in Python 2.3: http://www.python.org/dev/peps/pep-0285/.
When converting a bool to an int, the integer value is always 0 or 1, but when converting an int to a bool, the boolean value is True for all integers except 0.
>>> int(False)
0
>>> int(True)
1
>>> bool(5)
True
>>> bool(-5)
True
>>> bool(0)
False
I confirm the easiest way is to do this:
uiAnalyseAssets::AnalyseAssets(QWidget *parent)
: QWidget(parent)
{
ui.comboBox->addItem("text1");
ui.comboBox->addItem("text2");
...
}
void mainFunction::yourFunction( int index )
{
int value = ui.comboBox->currentText();
}
New Note: You probably don't want or need to do this. What you probably want to do is just put those types of command dependencies for build/test etc. in the devDependencies
section of your package.json. Anytime you use something from scripts
in package.json your devDependencies commands (in node_modules/.bin) act as if they are in your path.
For example:
npm i --save-dev mocha # Install test runner locally
npm i --save-dev babel # Install current babel locally
Then in package.json:
// devDependencies has mocha and babel now
"scripts": {
"test": "mocha",
"build": "babel -d lib src",
"prepublish": "babel -d lib src"
}
Then at your command prompt you can run:
npm run build # finds babel
npm test # finds mocha
npm publish # will run babel first
But if you really want to install globally, you can add a preinstall in the scripts section of the package.json:
"scripts": {
"preinstall": "npm i -g themodule"
}
So actually my npm install executes npm install again .. which is weird but seems to work.
Note: you might have issues if you are using the most common setup for npm
where global Node package installs required sudo
. One option is to change your npm
configuration so this isn't necessary:
npm config set prefix ~/npm
, add $HOME/npm/bin to $PATH by appending export PATH=$HOME/npm/bin:$PATH
to your ~/.bashrc
.
Try javax.net.ssl.keyStorePassword
instead of javax.net.ssl.keyPassword
: the latter isn't mentioned in the JSSE ref guide.
The algorithms you mention should be there by default using the default security providers. NoSuchAlgorithmException
s are often cause by other underlying exceptions (file not found, wrong password, wrong keystore type, ...). It's useful to look at the full stack trace.
You could also use -Djavax.net.debug=ssl
, or at least -Djavax.net.debug=ssl,keymanager
, to get more debugging information, if the information in the stack trace isn't sufficient.
Use below code to get the solution:
textView.setText(fromHtml("<Your Html Text>"))
Utitilty Method
public static Spanned fromHtml(String text)
{
Spanned result;
if (Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
result = Html.fromHtml(text, Html.FROM_HTML_MODE_LEGACY);
} else {
result = Html.fromHtml(text);
}
return result;
}
If you're using .NET 3.5, you can use HashSet<T>
. It's true that .NET doesn't cater for sets as well as Java does though.
The Wintellect PowerCollections may help too.
SELECT SUBSTR(TRIM(rtp.role),1,12) AS ROLE
, SUBSTR(rp.grantee,1,16) AS GRANTEE
, SUBSTR(TRIM(rtp.privilege),1,12) AS PRIVILEGE
, SUBSTR(TRIM(rtp.owner),1,12) AS OWNER
, SUBSTR(TRIM(rtp.table_name),1,28) AS TABLE_NAME
, SUBSTR(TRIM(rtp.column_name),1,20) AS COLUMN_NAME
, SUBSTR(rtp.common,1,4) AS COMMON
, SUBSTR(rtp.grantable,1,4) AS GRANTABLE
, SUBSTR(rp.default_role,1,16) AS DEFAULT_ROLE
, SUBSTR(rp.admin_option,1,4) AS ADMIN_OPTION
FROM role_tab_privs rtp
LEFT JOIN dba_role_privs rp
ON (rtp.role = rp.granted_role)
WHERE ('&1' IS NULL OR UPPER(rtp.role) LIKE UPPER('%&1%'))
AND ('&2' IS NULL OR UPPER(rp.grantee) LIKE UPPER('%&2%'))
AND ('&3' IS NULL OR UPPER(rtp.table_name) LIKE UPPER('%&3%'))
AND ('&4' IS NULL OR UPPER(rtp.owner) LIKE UPPER('%&4%'))
ORDER BY 1
, 2
, 3
, 4
;
SQLPLUS> @all_roles '' '' '' '' '' ''
SQLPLUS> @all_roles 'somerol' '' '' '' '' ''
SQLPLUS> @all_roles 'roler' 'username' '' '' '' ''
SQLPLUS> @all_roles '' '' 'part-of-database-package-name' '' '' ''
etc.
Attach the function to the onchange method of the input type file /onchange="validateimg(this)"/
function validateimg(ctrl) {
var fileUpload = ctrl;
var regex = new RegExp("([a-zA-Z0-9\s_\\.\-:])+(.jpg|.png|.gif)$");
if (regex.test(fileUpload.value.toLowerCase())) {
if (typeof (fileUpload.files) != "undefined") {
var reader = new FileReader();
reader.readAsDataURL(fileUpload.files[0]);
reader.onload = function (e) {
var image = new Image();
image.src = e.target.result;
image.onload = function () {
var height = this.height;
var width = this.width;
if (height < 1100 || width < 750) {
alert("At least you can upload a 1100*750 photo size.");
return false;
}else{
alert("Uploaded image has valid Height and Width.");
return true;
}
};
}
} else {
alert("This browser does not support HTML5.");
return false;
}
} else {
alert("Please select a valid Image file.");
return false;
}
}
Just create a new branch with git checkout -b ABC_1
; your uncommitted changes will be kept, and you then commit them to that branch.
You can use VLOOKUP, but this requires a wrapper function to return True
or False
. Not to mention it is (relatively) slow. Use COUNTIF or MATCH instead.
Fill down this formula in column K next to the existing values in column I (from I1
to I2691
):
=COUNTIF(<entire column E range>,<single column I value>)>0
=COUNTIF($E$1:$E$99504,$I1)>0
You can also use MATCH:
=NOT(ISNA(MATCH(<single column I value>,<entire column E range>)))
=NOT(ISNA(MATCH($I1,$E$1:$E$99504,0)))
If you are averse to boost, you can use regular old operator>>
, along with std::noskipws
:
EDIT: updates after testing.
#include <iostream>
#include <iomanip>
#include <vector>
#include <string>
#include <algorithm>
#include <iterator>
#include <sstream>
void split(const std::string& str, std::vector<std::string>& v) {
std::stringstream ss(str);
ss >> std::noskipws;
std::string field;
char ws_delim;
while(1) {
if( ss >> field )
v.push_back(field);
else if (ss.eof())
break;
else
v.push_back(std::string());
ss.clear();
ss >> ws_delim;
}
}
int main() {
std::vector<std::string> v;
split("hello world how are you", v);
std::copy(v.begin(), v.end(), std::ostream_iterator<std::string>(std::cout, "-"));
std::cout << "\n";
}
you can use ast.literal_eval()
>>> import ast
>>> s = "{'username':'dfdsfdsf'}"
>>> ast.literal_eval(s)
{'username': 'dfdsfdsf'}
Your encoded text is [B@6499375d
. That is not Base64, something went wrong while encoding. That decoding code looks good.
Use this code to convert the byte[] to a String before adding it to the URL:
String encodedEmailString = new String(encodedEmail, "UTF-8");
// ...
String confirmLink = "Complete your registration by clicking on following"
+ "\n<a href='" + confirmationURL + encodedEmailString + "'>link</a>";
Bootstrap 3 dropped native support for nested collapsing menus, but there's a way to re-enable it with a 3rd party script. It's called SmartMenus. It means adding three new resources to your page, but it seamlessly supports Bootstrap 3.x with multiple levels of menus for nested <ul>/<li>
elements with class="dropdown-menu"
. It automatically displays the proper caret indicator as well.
<head>
...
<script src=".../jquery.smartmenus.min.js"></script>
<script src=".../jquery.smartmenus.bootstrap.min.js"></script>
...
<link rel="stylesheet" href=".../jquery.smartmenus.bootstrap.min.css"/>
...
</head>
Here's a demo page: http://vadikom.github.io/smartmenus/src/demo/bootstrap-navbar-fixed-top.html
String.prototype.encodeHex = function () {
return this.split('').map(e => e.charCodeAt())
};
String.prototype.decodeHex = function () {
return this.map(e => String.fromCharCode(e)).join('')
};
Using the fontawesome-all.css file: Changing the "Brands" font-family from "Font Awesome 5 Free" to "Font Awesome 5 Brands" fixed the issues I was having.
I can't take all of the credit - I fixed my own local issue right before looking at the CDN version: https://use.fontawesome.com/releases/v5.0.6/css/all.css
They've got the issue sorted out on the CDN as well.
@font-face {_x000D_
font-family: 'Font Awesome 5 Brands';_x000D_
font-style: normal;_x000D_
font-weight: normal;_x000D_
src: url("../webfonts/fa-brands-400.eot");_x000D_
src: url("../webfonts/fa-brands-400.eot?#iefix") format("embedded-opentype"), url("../webfonts/fa-brands-400.woff2") format("woff2"), url("../webfonts/fa-brands-400.woff") format("woff"), url("../webfonts/fa-brands-400.ttf") format("truetype"), url("../webfonts/fa-brands-400.svg#fontawesome") format("svg"); }_x000D_
_x000D_
.fab {_x000D_
font-family: 'Font Awesome 5 Brands'; }_x000D_
@font-face {_x000D_
font-family: 'Font Awesome 5 Brands';_x000D_
font-style: normal;_x000D_
font-weight: 400;_x000D_
src: url("../webfonts/fa-regular-400.eot");_x000D_
src: url("../webfonts/fa-regular-400.eot?#iefix") format("embedded-opentype"), url("../webfonts/fa-regular-400.woff2") format("woff2"), url("../webfonts/fa-regular-400.woff") format("woff"), url("../webfonts/fa-regular-400.ttf") format("truetype"), url("../webfonts/fa-regular-400.svg#fontawesome") format("svg"); }
_x000D_
I think I have a shortcut for that:
# Importing datetime.
from datetime import datetime
# Creating a datetime object so we can test.
a = datetime.now()
# Converting a to string in the desired format (YYYYMMDD) using strftime
# and then to int.
a = int(a.strftime('%Y%m%d'))
You can also export the database and then use a program like notepad++ to replace words and then inmport aigain.
You can loop through the select_obj.options. There's a #text method in each of the option object, which you can use to compare to what you want and set the selectedIndex of the select_obj.
Try this:
$("button").click(function () {
$(this).parents("div:first").html(...);
});
SWIFT 2.0
var tempJson : NSString = ""
do {
let arrJson = try NSJSONSerialization.dataWithJSONObject(arrInvitationList, options: NSJSONWritingOptions.PrettyPrinted)
let string = NSString(data: arrJson, encoding: NSUTF8StringEncoding)
tempJson = string! as NSString
}catch let error as NSError{
print(error.description)
}
NOTE:- use tempJson variable when you want to use.
std::less<>
when using custom classes with operator<
If you are dealing with a set of your custom class that has operator<
defined, then you can just use std::less<>
.
As mentioned at http://en.cppreference.com/w/cpp/container/set/find C++14 has added two new find
APIs:
template< class K > iterator find( const K& x );
template< class K > const_iterator find( const K& x ) const;
which allow you to do:
main.cpp
#include <cassert>
#include <set>
class Point {
public:
// Note that there is _no_ conversion constructor,
// everything is done at the template level without
// intermediate object creation.
//Point(int x) : x(x) {}
Point(int x, int y) : x(x), y(y) {}
int x;
int y;
};
bool operator<(const Point& c, int x) { return c.x < x; }
bool operator<(int x, const Point& c) { return x < c.x; }
bool operator<(const Point& c, const Point& d) {
return c.x < d;
}
int main() {
std::set<Point, std::less<>> s;
s.insert(Point(1, -1));
s.insert(Point(2, -2));
s.insert(Point(0, 0));
s.insert(Point(3, -3));
assert(s.find(0)->y == 0);
assert(s.find(1)->y == -1);
assert(s.find(2)->y == -2);
assert(s.find(3)->y == -3);
// Ignore 1234, find 1.
assert(s.find(Point(1, 1234))->y == -1);
}
Compile and run:
g++ -std=c++14 -Wall -Wextra -pedantic -o main.out main.cpp
./main.out
More info about std::less<>
can be found at: What are transparent comparators?
Tested on Ubuntu 16.10, g++
6.2.0.
It would be this
array=($(ls -d */))
EDIT: See Gordon Davisson's solution for a more general answer (i.e. if your filenames contain special characters). This answer is merely a syntax correction.
You can iterate over the row data
$('#button').click(function () {
var ids = $.map(table.rows('.selected').data(), function (item) {
return item[0]
});
console.log(ids)
alert(table.rows('.selected').data().length + ' row(s) selected');
});
Demo: Fiddle
Using find
:
find . -maxdepth 1 -type f
Using the -maxdepth 1
option ensures that you only look in the current directory (or, if you replace the .
with some path, that directory). If you want a full recursive listing of all files in that and subdirectories, just remove that option.
I'm not sure for JPA 1.0 but you can pass a Collection
in JPA 2.0:
String qlString = "select item from Item item where item.name IN :names";
Query q = em.createQuery(qlString, Item.class);
List<String> names = Arrays.asList("foo", "bar");
q.setParameter("names", names);
List<Item> actual = q.getResultList();
assertNotNull(actual);
assertEquals(2, actual.size());
Tested with EclipseLInk. With Hibernate 3.5.1, you'll need to surround the parameter with parenthesis:
String qlString = "select item from Item item where item.name IN (:names)";
But this is a bug, the JPQL query in the previous sample is valid JPQL. See HHH-5126.
Try this (subquery):
SELECT * FROM terms WHERE id IN
(SELECT term_id FROM terms_relation WHERE taxonomy = "categ")
Or you can try this (JOIN):
SELECT t.* FROM terms AS t
INNER JOIN terms_relation AS tr
ON t.id = tr.term_id AND tr.taxonomy = "categ"
If you want to receive all fields from two tables:
SELECT t.id, t.name, t.slug, tr.description, tr.created_at, tr.updated_at
FROM terms AS t
INNER JOIN terms_relation AS tr
ON t.id = tr.term_id AND tr.taxonomy = "categ"
In recent versions of jQuery, setting "dataType" to an appropriate value also sets the accepts header. For instance, dataType: "json"
sets the accept header to Accept: application/json, text/javascript, */*; q=0.01
.
Internet E-mail address format (RFC 822
)
(,)
comma separated sequence of addresses
javax.mail - 1.4.7 parse( String[] )
is not allowed. So we have to give comma separated sequence of addresses into InternetAddress
objects. Addresses must follow RFC822 syntax.
String toAddress = "[email protected],[email protected]";
InternetAddress.parse( toAddress );
(;)
semi-colon separated sequence of addresses « If group of address list is provided with delimeter as ";" then convert to String array using split method to use the following function.
String[] addressList = { "[email protected]", "[email protected]" };
String toGroup = "[email protected];[email protected]";
String[] addressList2 = toGroup.split(";");
setRecipients(message, addressList);
public static void setRecipients(Message message, Object addresslist) throws AddressException, MessagingException {
if ( addresslist instanceof String ) { // CharSequence
message.setRecipients(Message.RecipientType.TO, InternetAddress.parse( (String) addresslist ));
} else if ( addresslist instanceof String[] ) { // String[] « Array with collection of Strings/
String[] toAddressList = (String[]) addresslist;
InternetAddress[] mailAddress_TO = new InternetAddress[ toAddressList.length ];
for (int i = 0; i < toAddressList.length; i++) {
mailAddress_TO[i] = new InternetAddress( toAddressList[i] );
}
message.setRecipients(Message.RecipientType.TO, mailAddress_TO);
}
}
Full Example:
public static Properties getMailProperties( boolean addExteraProps ) {
Properties props = new Properties();
props.put("mail.transport.protocol", MAIL_TRNSPORT_PROTOCOL);
props.put("mail.smtp.host", MAIL_SERVER_NAME);
props.put("mail.smtp.port", MAIL_PORT);
// Sending Email to the GMail SMTP server requires authentication and SSL.
props.put("mail.smtp.auth", true);
if( ENCRYPTION_METHOD.equals("STARTTLS") ) {
props.put("mail.smtp.starttls.enable", true);
props.put("mail.smtp.socketFactory.port", SMTP_STARTTLS_PORT); // 587
} else {
props.put("mail.smtps.ssl.enable", true);
props.put("mail.smtp.socketFactory.port", SMTP_SSL_PORT); // 465
}
props.put("mail.smtp.socketFactory", SOCKETFACTORY_CLASS);
return props;
}
public static boolean sendMail(String subject, String contentType, String msg, Object recipients) throws Exception {
Properties props = getMailProperties( false );
Session mailSession = Session.getInstance(props, null);
mailSession.setDebug(true);
Message message = new MimeMessage( mailSession );
message.setFrom( new InternetAddress( USER_NAME ) );
setRecipients(message, recipients);
message.setSubject( subject );
String htmlData = "<h1>This is actual message embedded in HTML tags</h1>";
message.setContent( htmlData, "text/html");
Transport transport = mailSession.getTransport( MAIL_TRNSPORT_PROTOCOL );
transport.connect(MAIL_SERVER_NAME, Integer.valueOf(MAIL_PORT), USER_NAME, PASSWORD);
message.saveChanges(); // don't forget this
transport.sendMessage(message, message.getAllRecipients());
transport.close();
}
Using Appache
SimpleEmail
-commons-email-1.3.1
Example: email.addTo( addressList );
public static void sendSimpleMail() throws Exception {
Email email = new SimpleEmail();
email.setSmtpPort(587);
DefaultAuthenticator defaultAuthenticator = new DefaultAuthenticator( USER_NAME, PASSWORD );
email.setAuthenticator( defaultAuthenticator );
email.setDebug(false);
email.setHostName( MAIL_SERVER_NAME );
email.setFrom( USER_NAME );
email.setSubject("Hi");
email.setMsg("This is a test mail ... :-)");
//email.addTo( "[email protected]", "Yash" );
String[] toAddressList = { "[email protected]", "[email protected]" }
email.addTo( addressList );
email.setTLS(true);
email.setStartTLSEnabled( true );
email.send();
System.out.println("Mail sent!");
}
Through SSMS, I created a new schema by:
I found this post to change the schema, but was also getting the same permissions error when trying to change to the new schema. I have several databases listed in my SSMS, so I just tried specifying the database and it worked:
USE (yourservername)
ALTER SCHEMA exe TRANSFER dbo.Employees
This issue can be solved using MediaQuery.of(context)
To get Screen width: MediaQuery.of(context).size.width
To get Screen height: MediaQuery.of(context).size.height
For more information about MediaQuery Widget watch, https://www.youtube.com/watch?v=A3WrA4zAaPw
Add style="text-align:center;"
try below code
<html>
<head>
<title>Test</title>
</head>
<body>
<div style="text-align:center;vertical-align:middle;">
<img src="queuedError.jpg" style="margin:auto; width:200px;" />
</div>
</body>
</html>
You can make use of Floyd's cycle-finding algorithm, also known as tortoise and hare algorithm.
The idea is to have two references to the list and move them at different speeds. Move one forward by 1
node and the other by 2
nodes.
next
)
will become null
.Java function implementing the algorithm:
boolean hasLoop(Node first) {
if(first == null) // list does not exist..so no loop either
return false;
Node slow, fast; // create two references.
slow = fast = first; // make both refer to the start of the list
while(true) {
slow = slow.next; // 1 hop
if(fast.next != null)
fast = fast.next.next; // 2 hops
else
return false; // next node null => no loop
if(slow == null || fast == null) // if either hits null..no loop
return false;
if(slow == fast) // if the two ever meet...we must have a loop
return true;
}
}
You can try :
echo -e "newpasswd123\nnnewpasswd123" | passwd user
Use regex:
result = result.replaceAll("\n.*", "");
replaceAll()
uses regex to find its target, which I have replaced with "nothing" - effectively deleting the target.
The target I've specified by the regex \n.*
means "the newline char and everything after"
Try this... Worked for me and printed 10/22/2013 01:37:56 AM
Ofcourse this is your code only with little modifications.
final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("UTC")); // This line converts the given date into UTC time zone
final java.util.Date dateObj = sdf.parse("2013-10-22T01:37:56");
aRevisedDate = new SimpleDateFormat("MM/dd/yyyy KK:mm:ss a").format(dateObj);
System.out.println(aRevisedDate);
"""
Create 3D array for given dimensions - (x, y, z)
@author: Naimish Agarwal
"""
def three_d_array(value, *dim):
"""
Create 3D-array
:param dim: a tuple of dimensions - (x, y, z)
:param value: value with which 3D-array is to be filled
:return: 3D-array
"""
return [[[value for _ in xrange(dim[2])] for _ in xrange(dim[1])] for _ in xrange(dim[0])]
if __name__ == "__main__":
array = three_d_array(False, *(2, 3, 1))
x = len(array)
y = len(array[0])
z = len(array[0][0])
print x, y, z
array[0][0][0] = True
array[1][1][0] = True
print array
Prefer to use numpy.ndarray
for multi-dimensional arrays.
to remove symbol use tag [ ]
step:1
[]
step 2:place what symbol u want to remove eg:@ like [@]
[@]
step 3:
var name = name.replace(/[@]/g, "");
thats it
var name="ggggggg@fffff"
var result = name.replace(/[@]/g, "");
console .log(result)
_x000D_
Extra Tips
To remove space (give one space into square bracket like []=>[ ])
[@ ]
It Remove Everything (using except)
[^place u dont want to remove]
eg:i remove everyting except alphabet (small and caps)
[^a-zA-Z ]
var name="ggggg33333@#$%^&**I(((**gg@fffff"
var result = name.replace(/[^a-zA-Z]/g, "");
console .log(result)
_x000D_
I struggled with the same issue, and the following worked for me.
Step 1: Check your JAVA_HOME setting. It may look something like:
JAVA_HOME="/usr/libexec/java_home"
Step 2: Update JAVA_HOME like so:
$ vim .bash_profile
export JAVA_HOME=$(/usr/libexec/java_home)
$ source .bash_profile
Step 3: In a new shell, check that the Maven command is now working properly:
$ mvn -version
If this fixed the problem, you should get back a response like:
Apache Maven 3.0.3 (r1075438; 2011-03-01 01:31:09+0800)
Maven home: /usr/share/maven
Java version: 1.7.0_05, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/1.7.0.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.8.2", arch: "x86_64", family: "mac"
Use can use plain JavaScript's Array#filter
method like this:
var arr = [{id:1,name:'a'},{id:2,name:'b'},{id:3,name:'c'}];_x000D_
_x000D_
var filteredArr = arr.filter(obj => obj.id != 3);_x000D_
_x000D_
console.log(filteredArr);
_x000D_
Or, use Array#reduce
and Array#concat
methods like this:
var arr = [{id:1,name:'a'},{id:2,name:'b'},{id:3,name:'c'}];_x000D_
_x000D_
var reducedArr = arr.reduce((accumulator, currObj) => {_x000D_
return (currObj.id != 3) ? accumulator.concat(currObj) : accumulator;_x000D_
}, []);_x000D_
_x000D_
console.log(reducedArr);
_x000D_
NOTE:
This is really linked to HotSpot and the default option values (Java HotSpot VM Options) which differ between client and server configuration.
From Chapter 2 of the whitepaper (The Java HotSpot Performance Engine Architecture):
The JDK includes two flavors of the VM -- a client-side offering, and a VM tuned for server applications. These two solutions share the Java HotSpot runtime environment code base, but use different compilers that are suited to the distinctly unique performance characteristics of clients and servers. These differences include the compilation inlining policy and heap defaults.
Although the Server and the Client VMs are similar, the Server VM has been specially tuned to maximize peak operating speed. It is intended for executing long-running server applications, which need the fastest possible operating speed more than a fast start-up time or smaller runtime memory footprint.
The Client VM compiler serves as an upgrade for both the Classic VM and the just-in-time (JIT) compilers used by previous versions of the JDK. The Client VM offers improved run time performance for applications and applets. The Java HotSpot Client VM has been specially tuned to reduce application start-up time and memory footprint, making it particularly well suited for client environments. In general, the client system is better for GUIs.
So the real difference is also on the compiler level:
The Client VM compiler does not try to execute many of the more complex optimizations performed by the compiler in the Server VM, but in exchange, it requires less time to analyze and compile a piece of code. This means the Client VM can start up faster and requires a smaller memory footprint.
The Server VM contains an advanced adaptive compiler that supports many of the same types of optimizations performed by optimizing C++ compilers, as well as some optimizations that cannot be done by traditional compilers, such as aggressive inlining across virtual method invocations. This is a competitive and performance advantage over static compilers. Adaptive optimization technology is very flexible in its approach, and typically outperforms even advanced static analysis and compilation techniques.
Note: The release of jdk6 update 10 (see Update Release Notes:Changes in 1.6.0_10) tried to improve startup time, but for a different reason than the hotspot options, being packaged differently with a much smaller kernel.
G. Demecki points out in the comments that in 64-bit versions of JDK, the -client
option is ignored for many years.
See Windows java
command:
-client
Selects the Java HotSpot Client VM.
A 64-bit capable JDK currently ignores this option and instead uses the Java Hotspot Server VM.
I really hate to put long HTML inside of the attribute, here is my solution, clear and simple (replace ? with whatever you want):
<a class="btn-lg popover-dismiss" data-placement="bottom" data-toggle="popover" title="Help">
<h2>Some title</h2>
Some text
</a>
then
var help = $('.popover-dismiss');
help.attr('data-content', help.html()).text(' ? ').popover({trigger: 'hover', html: true});
If you don't want to use Windows Forms nor edit manifest files, I came up with a very simple hack using WPF's SaveAs dialog for actually selecting a directory.
No using directive needed, you may simply copy-paste the code below !
It should still be very user-friendly and most people will never notice.
The idea comes from the fact that we can change the title of that dialog, hide files, and work around the resulting filename quite easily.
It is a big hack for sure, but maybe it will do the job just fine for your usage...
In this example I have a textbox object to contain the resulting path, but you may remove the related lines and use a return value if you wish...
// Create a "Save As" dialog for selecting a directory (HACK)
var dialog = new Microsoft.Win32.SaveFileDialog();
dialog.InitialDirectory = textbox.Text; // Use current value for initial dir
dialog.Title = "Select a Directory"; // instead of default "Save As"
dialog.Filter = "Directory|*.this.directory"; // Prevents displaying files
dialog.FileName = "select"; // Filename will then be "select.this.directory"
if (dialog.ShowDialog() == true) {
string path = dialog.FileName;
// Remove fake filename from resulting path
path = path.Replace("\\select.this.directory", "");
path = path.Replace(".this.directory", "");
// If user has changed the filename, create the new directory
if (!System.IO.Directory.Exists(path)) {
System.IO.Directory.CreateDirectory(path);
}
// Our final value is in path
textbox.Text = path;
}
The only issues with this hack are :
Most people won't notice these, although I would definitely prefer using an official WPF way if microsoft would get their heads out of their asses, but until they do, that's my temporary fix.
You can use new feature Google play app signing to generate a new key file .
After May 2017 Google play store add a new feature on Play store and It’s Good News For Android Developers. From this feature, Developer can update their app or Apk who lost a KeyStore file. you need to enable google play app signing on play store console.
https://support.google.com/googleplay/android-developer/answer/7384423?hl=en
http://www.geekcodehub.com/2018/05/23/keystore-lost-in-android/
If your xml is in a string use the following to remove any byte order mark:
xml = new Regex("\\<\\?xml.*\\?>").Replace(xml, "");
The BigDecimal(double) constructor can have unpredictable behaviors. It is preferable to use BigDecimal(String) or BigDecimal.valueOf(double).
System.out.println(new BigDecimal(135.69)); //135.68999999999999772626324556767940521240234375
System.out.println(new BigDecimal("135.69")); // 135.69
System.out.println(BigDecimal.valueOf(135.69)); // 135.69
The documentation for BigDecimal(double) explains in detail:
- The results of this constructor can be somewhat unpredictable. One might assume that writing new BigDecimal(0.1) in Java creates a BigDecimal which is exactly equal to 0.1 (an unscaled value of 1, with a scale of 1), but it is actually equal to 0.1000000000000000055511151231257827021181583404541015625. This is because 0.1 cannot be represented exactly as a double (or, for that matter, as a binary fraction of any finite length). Thus, the value that is being passed in to the constructor is not exactly equal to 0.1, appearances notwithstanding.
- The String constructor, on the other hand, is perfectly predictable: writing new BigDecimal("0.1") creates a BigDecimal which is exactly equal to 0.1, as one would expect. Therefore, it is generally recommended that the String constructor be used in preference to this one.
- When a double must be used as a source for a BigDecimal, note that this constructor provides an exact conversion; it does not give the same result as converting the double to a String using the Double.toString(double) method and then using the BigDecimal(String) constructor. To get that result, use the static valueOf(double) method.
keystore simply stores private keys, wheras truststore stores public keys. You will want to generate a java certificate for SSL communication. You can use a keygen command in windows, this will probably be the most easy solution.
For me this happened when I tried to run on a device with a newer version of iOS than supported by the version of Xcode I was running.
Most of these answers overcomplicate this. Why not try it this way?
$("textarea").keypress(function(event) {
if (event.keyCode == 13 && !event.shiftKey) {
submitForm(); //Submit your form here
return false;
}
});
No messing around with caret position or shoving line breaks into JS. Basically, the function will not run if the shift key is being pressed, therefore allowing the enter/return key to perform its normal function.
-eq
is the shell comparison operator for comparing integers. For comparing strings you need to use =
.
The accepted answer would rule out a lot of valid identifiers, as far as I can see. Here is a regular expression that I put together which should follow the spec (see chapter 7.6 on identifiers). Created it using RegexBuddy and you can find an export of the explanation at http://samples.geekality.net/js-identifiers.
^[$_\p{L}][$_\p{L}\p{Mn}\p{Mc}\p{Nd}\p{Pc}\u200C\u200D]*+$
In addition, the name cannot be one of the following reserved words.
break, do, instanceof, typeof, case, else, new, var, catch, finally, return, void, continue, for, switch, while, debugger, function, this, with, default, if, throw, delete, in, try, class, enum, extends, super, const, export, import, implements, let, private, public, yield, interface, package, protected, static, null, true, false
If you read the help file for ?boxplot
, you'll see there is a names=
parameter.
boxplot(apple, banana, watermelon, names=c("apple","banana","watermelon"))
try adding this to your js function:
var outputvar = document.getElementById("your_div_id_inside_html_form");
outputvar.innerHTML='<input id=id_to_send_to_php value='+your_js_var+'>';
Later in html:
<div id="id_you_choosed_for_outputvar"></div>
this div will contain the js var to be passed through a form to another js function or to php, remember to place it inside your html form!. This solution is working fine for me.
In your specific geolocation case you can try adding the following to function showPosition(position):
var outputlon = document.getElementById("lon1");
outputlon.innerHTML = '<input id=lon value='+lon+'>';
var outputlat = document.getElementById("lat1");
outputlat.innerHTML = '<input id=lat value='+lat+'>';
later add these div to your html form:
<div id=lat1></div>
<div id=lon1></div>
In these div you'll get latitude and longitude as input values for your php form, you would better hide them using css (show only the marker on a map if used) in order to avoid users to change them before to submit, and set your database to accept float values with lenght 10,7.
Hope this will help.
I know this is a pretty old thread but here comes my 5 cents.
There is another way to do this depending on what your needs are.
I have a case where i want a css file to be active only a while. Like css switching. Activate the css and then after another event deativate it.
Instead of loading the css dynamically and then removing it you can add a Class/an id in front of all elements in the new css and then just switch that class/id of the base node of your css (like body tag).
You would with this solution have more css files initially loaded but you have a more dynamic way of switching css layouts.
I've fought the HTML email battle before. Here are some of my tips about styling for maximum compatibility between email clients.
Inline styles are you best friend. Absolutely don't link style sheets and do not use a <style>
tag (GMail, for example, strips that tag and all it's contents).
Against your better judgement, use and abuse tables. <div>
s just won't cut it (especially in Outlook).
Don't use background images, they're spotty and will annoy you.
Remember that some email clients will automatically transform typed out hyperlinks into links (if you don't anchor <a>
them yourself). This can sometimes achieve negative effects (say if you're putting a style on each of the hyperlinks to appear a different color).
Be careful hyperlinking an actual link with something different. For example, don't type out http://www.google.com
and then link it to https://gmail.com/
. Some clients will flag the message as Spam or Junk.
Save your images in as few colors as possible to save on size.
If possible, embed your images in your email. The email won't have to reach out to an external web server to download them and they won't appear as attachments to the email.
And lastly, test, test, test! Each email client does things way differently than a browser would do.
If you are using string
datatype, below code works:
string str = str.Remove(str.Length - 1);
But when you have StringBuilder
, you have to specify second parameter length
as well.
That is,
string newStr = sb.Remove(sb.Length - 1, 1).ToString();
To avoid below error:
Java's substring
method fails when you try and get a substring starting at an index which is longer than the string.
An easy alternative is to use Apache Commons StringUtils.substring
:
public static String substring(String str, int start)
Gets a substring from the specified String avoiding exceptions.
A negative start position can be used to start n characters from the end of the String.
A null String will return null. An empty ("") String will return "".
StringUtils.substring(null, *) = null
StringUtils.substring("", *) = ""
StringUtils.substring("abc", 0) = "abc"
StringUtils.substring("abc", 2) = "c"
StringUtils.substring("abc", 4) = ""
StringUtils.substring("abc", -2) = "bc"
StringUtils.substring("abc", -4) = "abc"
Parameters:
str - the String to get the substring from, may be null
start - the position to start from, negative means count back from the end of the String by this many characters
Returns:
substring from start position, null if null String input
Note, if you can't use Apache Commons lib for some reason, you could just grab the parts you need from the source
// Substring
//-----------------------------------------------------------------------
/**
* <p>Gets a substring from the specified String avoiding exceptions.</p>
*
* <p>A negative start position can be used to start {@code n}
* characters from the end of the String.</p>
*
* <p>A {@code null} String will return {@code null}.
* An empty ("") String will return "".</p>
*
* <pre>
* StringUtils.substring(null, *) = null
* StringUtils.substring("", *) = ""
* StringUtils.substring("abc", 0) = "abc"
* StringUtils.substring("abc", 2) = "c"
* StringUtils.substring("abc", 4) = ""
* StringUtils.substring("abc", -2) = "bc"
* StringUtils.substring("abc", -4) = "abc"
* </pre>
*
* @param str the String to get the substring from, may be null
* @param start the position to start from, negative means
* count back from the end of the String by this many characters
* @return substring from start position, {@code null} if null String input
*/
public static String substring(final String str, int start) {
if (str == null) {
return null;
}
// handle negatives, which means last n characters
if (start < 0) {
start = str.length() + start; // remember start is negative
}
if (start < 0) {
start = 0;
}
if (start > str.length()) {
return EMPTY;
}
return str.substring(start);
}
You can use Google guava as such:
ImmutableList<char> dirs = ImmutableList.of('+', '-', '*', '^');
Just wanted to add -- apparently this can also be caused by installing Instant Client for 10, then realizing you want the full install and installing it again in a parallel directory. I don't know why this broke it.
You need to specify the std::
namespace:
std::cout << .... << std::endl;;
Alternatively, you can use a using
directive:
using std::cout;
using std::endl;
cout << .... << endl;
I should add that you should avoid these using
directives in headers, since code including these will also have the symbols brought into the global namespace. Restrict using directives to small scopes, for example
#include <iostream>
inline void foo()
{
using std::cout;
using std::endl;
cout << "Hello world" << endl;
}
Here, the using
directive only applies to the scope of foo()
.
In the old days, when we could assume that most computers used ASCII, we would just do
int i = c[0] - '0';
But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.
Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.
1) bitmap to Drawable :
Drawable mDrawable = new BitmapDrawable(getResources(), bitmap);
// mImageView.setDrawable(mDrawable);
2) drawable to Bitmap :
Bitmap mIcon = BitmapFactory.decodeResource(context.getResources(),R.drawable.icon_resource);
// mImageView.setImageBitmap(mIcon);
Inline functions have special rules about what extern
means. (Note that inline functions are a C99 or GNU extension; they weren't in original C.
For non-inline functions, extern
is not needed as it is on by default.
Note that the rules for C++ are different. For example, extern "C"
is needed on the C++ declaration of C functions that you are going to call from C++, and there are different rules about inline
.
I'm using Zend Studio. It has decent syntax highlighting, code completion and such. But the best part is that you can debug PHP code, either with a standalone PHP interpreter, or even on a live web server as you "browse" along your pages. You get the usual Visual Studio keys, breakpoints, watches and call stack, which is almost indispensable for bug hunting. No more "alert()"-cluttered debugged source code :)
I encountered the same error and got stalled with a pyspark dataframe for few days, I was able to resolve it successfully by filling na values with 0 since I was comparing integer values from 2 fields.
You can't update it. What you can do is uninstall the cordova plugin and add it again.
cordova plugin rm https://github.com/apache/cordova-plugin-camera --save
cordova plugin add https://github.com/apache/cordova-plugin-camera --save
The programs which has been written on one version of jdk won't support the JNI platform of another version of jdk. If in case we are using jdk10 and jdk8,eclipse configured for jdk10 and code written on jdk10. Now, i don't want to use jdk10 and started using jdk8 as jvm and tried to run the code which is written on jdk10, so eclipse will through error of JNI. So, to come out of this error, please add the current JVM path to eclipse.ini file, after this copy the written code to clipboard and delete the project in eclipse and create new project and check in copied code and run.
The %#08X
conversion must precede the value with 0X
; that is required by the standard. There's no evidence in the standard that the #
should alter the behaviour of the 08
part of the specification except that the 0X
prefix is counted as part of the length (so you might want/need to use %#010X
. If, like me, you like your hex presented as 0x1234CDEF
, then you have to use 0x%08X
to achieve the desired result. You could use %#.8X
and that should also insert the leading zeroes.
Try variations on the following code:
#include <stdio.h>
int main(void)
{
int j = 0;
printf("0x%.8X = %#08X = %#.8X = %#010x\n", j, j, j, j);
for (int i = 0; i < 8; i++)
{
j = (j << 4) | (i + 6);
printf("0x%.8X = %#08X = %#.8X = %#010x\n", j, j, j, j);
}
return(0);
}
On an RHEL 5 machine, and also on Mac OS X (10.7.5), the output was:
0x00000000 = 00000000 = 00000000 = 0000000000
0x00000006 = 0X000006 = 0X00000006 = 0x00000006
0x00000067 = 0X000067 = 0X00000067 = 0x00000067
0x00000678 = 0X000678 = 0X00000678 = 0x00000678
0x00006789 = 0X006789 = 0X00006789 = 0x00006789
0x0006789A = 0X06789A = 0X0006789A = 0x0006789a
0x006789AB = 0X6789AB = 0X006789AB = 0x006789ab
0x06789ABC = 0X6789ABC = 0X06789ABC = 0x06789abc
0x6789ABCD = 0X6789ABCD = 0X6789ABCD = 0x6789abcd
I'm a little surprised at the treatment of 0; I'm not clear why the 0X
prefix is omitted, but with two separate systems doing it, it must be standard. It confirms my prejudices against the #
option.
The treatment of zero is according to the standard.
ISO/IEC 9899:2011 §7.21.6.1 The
fprintf
function¶6 The flag characters and their meanings are:
...
#
The result is converted to an "alternative form". ... Forx
(orX
) conversion, a nonzero result has0x
(or0X
) prefixed to it. ...
(Emphasis added.)
Note that using %#X
will use upper-case letters for the hex digits and 0X
as the prefix; using %#x
will use lower-case letters for the hex digits and 0x
as the prefix. If you prefer 0x
as the prefix and upper-case letters, you have to code the 0x
separately: 0x%X
. Other format modifiers can be added as needed, of course.
For printing addresses, use the <inttypes.h>
header and the uintptr_t
type and the PRIXPTR
format macro:
#include <inttypes.h>
#include <stdio.h>
int main(void)
{
void *address = &address; // &address has type void ** but it converts to void *
printf("Address 0x%.12" PRIXPTR "\n", (uintptr_t)address);
return 0;
}
Example output:
Address 0x7FFEE5B29428
Choose your poison on the length — I find that a precision of 12 works well for addresses on a Mac running macOS. Combined with the .
to specify the minimum precision (digits), it formats addresses reliably. If you set the precision to 16, the extra 4 digits are always 0 in my experience on the Mac, but there's certainly a case to be made for using 16 instead of 12 in portable 64-bit code (but you'd use 8 for 32-bit code).
I am also using mssql server 2008 and jtds.In my case I am using the following connect string and it works.
Class.forName( "net.sourceforge.jtds.jdbc.Driver" );
Connection con = DriverManager.getConnection( "jdbc:jtds:sqlserver://<your server ip
address>:1433/zacmpf", userName, password );
Statement stmt = con.createStatement();
Are you on a linux system? If so be sure you are exporting your variable.
myVar=testvalue; export myVar
I get null unless I use export to define the value globally.
You can just say
callback();
Alternately you can use the call
method if you want to adjust the value of this
within the callback.
callback.call( newValueForThis);
Inside the function this
would be whatever newValueForThis
is.
Knowledge of high level programming languages (C/C++, Java, PHP, Python, Perl, etc.) would suggest to the layman that Bourne Again Shell (Bash) functions should work like they do in those other languages.
Instead, Bash functions work like shell commands and expect arguments to be passed to them in the same way one might pass an option to a shell command (e.g. ls -l
). In effect, function arguments in Bash are treated as positional parameters ($1, $2..$9, ${10}, ${11}
, and so on). This is no surprise considering how getopts
works. Do not use parentheses to call a function in Bash.
(Note: I happen to be working on OpenSolaris at the moment.)
# Bash style declaration for all you PHP/JavaScript junkies. :-)
# $1 is the directory to archive
# $2 is the name of the tar and zipped file when all is done.
function backupWebRoot ()
{
tar -cvf - "$1" | zip -n .jpg:.gif:.png "$2" - 2>> $errorlog &&
echo -e "\nTarball created!\n"
}
# sh style declaration for the purist in you. ;-)
# $1 is the directory to archive
# $2 is the name of the tar and zipped file when all is done.
backupWebRoot ()
{
tar -cvf - "$1" | zip -n .jpg:.gif:.png "$2" - 2>> $errorlog &&
echo -e "\nTarball created!\n"
}
# In the actual shell script
# $0 $1 $2
backupWebRoot ~/public/www/ webSite.tar.zip
Want to use names for variables? Just do something this.
local filename=$1 # The keyword declare can be used, but local is semantically more specific.
Be careful, though. If an argument to a function has a space in it, you may want to do this instead! Otherwise, $1
might not be what you think it is.
local filename="$1" # Just to be on the safe side. Although, if $1 was an integer, then what? Is that even possible? Humm.
Want to pass an array to a function?
callingSomeFunction "${someArray[@]}" # Expands to all array elements.
Inside the function, handle the arguments like this.
function callingSomeFunction ()
{
for value in "$@" # You want to use "$@" here, not "$*" !!!!!
do
:
done
}
Need to pass a value and an array, but still use "$@" inside the function?
function linearSearch ()
{
local myVar="$1"
shift 1 # Removes $1 from the parameter list
for value in "$@" # Represents the remaining parameters.
do
if [[ $value == $myVar ]]
then
echo -e "Found it!\t... after a while."
return 0
fi
done
return 1
}
linearSearch $someStringValue "${someArray[@]}"
If you want to go old school, goto is still supported in C#:
STARTOVER:
//Do something
goto STARTOVER;
For a truly infinite loop, this is the go-to command. =)
Keep 2 stacks, let's call them inbox
and outbox
.
Enqueue:
inbox
Dequeue:
If outbox
is empty, refill it by popping each element from inbox
and pushing it onto outbox
Pop and return the top element from outbox
Using this method, each element will be in each stack exactly once - meaning each element will be pushed twice and popped twice, giving amortized constant time operations.
Here's an implementation in Java:
public class Queue<E>
{
private Stack<E> inbox = new Stack<E>();
private Stack<E> outbox = new Stack<E>();
public void queue(E item) {
inbox.push(item);
}
public E dequeue() {
if (outbox.isEmpty()) {
while (!inbox.isEmpty()) {
outbox.push(inbox.pop());
}
}
return outbox.pop();
}
}
You can get accurate Carousel effect using iCarousel SDK.
You can get an instant Cover Flow effect on iOS by using the marvelous and free iCarousel library. You can download it from https://github.com/nicklockwood/iCarousel and drop it into your Xcode project fairly easily by adding a bridging header (it's written in Objective-C).
If you haven't added Objective-C code to a Swift project before, follow these steps:
Swift 3 Sample Code:
override func viewDidLoad() {
super.viewDidLoad()
let carousel = iCarousel(frame: CGRect(x: 0, y: 0, width: 300, height: 200))
carousel.dataSource = self
carousel.type = .coverFlow
view.addSubview(carousel)
}
func numberOfItems(in carousel: iCarousel) -> Int {
return 10
}
func carousel(_ carousel: iCarousel, viewForItemAt index: Int, reusing view: UIView?) -> UIView {
let imageView: UIImageView
if view != nil {
imageView = view as! UIImageView
} else {
imageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 128, height: 128))
}
imageView.image = UIImage(named: "example")
return imageView
}
Just for the fun, I'm offering an alternative solution using jOOQ and Java 8. Instead of using jOOQ, you could be using any other API that maps JDBC ResultSet
to List
, such as Spring JDBC or Apache DbUtils, or write your own ResultSetIterator
:
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(r -> Arrays.stream(r.intoArray()))
.collect(Collectors.toList());
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(Record::intoStream)
.collect(Collectors.toList());
(Disclaimer, I work for the company behind jOOQ)
declare @nReturn int = 0 EXEC @nReturn = Stored Procedures
Follow these links for the MSDN descriptions of:
Math.Floor
, which rounds down towards negative infinity.Math.Ceiling
, which rounds up towards positive infinity.Math.Truncate
, which rounds up or down towards zero.Math.Round
, which rounds to the nearest integer or specified number of decimal places. You can specify the behavior if it's exactly equidistant between two possibilities, such as rounding so that the final digit is even ("Round(2.5,MidpointRounding.ToEven)
" becoming 2) or so that it's further away from zero ("Round(2.5,MidpointRounding.AwayFromZero)
" becoming 3).The following diagram and table may help:
-3 -2 -1 0 1 2 3
+--|------+---------+----|----+--|------+----|----+-------|-+
a b c d e
a=-2.7 b=-0.5 c=0.3 d=1.5 e=2.8
====== ====== ===== ===== =====
Floor -3 -1 0 1 2
Ceiling -2 0 1 2 3
Truncate -2 0 0 1 2
Round (ToEven) -3 0 0 2 3
Round (AwayFromZero) -3 -1 0 2 3
Note that Round
is a lot more powerful than it seems, simply because it can round to a specific number of decimal places. All the others round to zero decimals always. For example:
n = 3.145;
a = System.Math.Round (n, 2, MidpointRounding.ToEven); // 3.14
b = System.Math.Round (n, 2, MidpointRounding.AwayFromZero); // 3.15
With the other functions, you have to use multiply/divide trickery to achieve the same effect:
c = System.Math.Truncate (n * 100) / 100; // 3.14
d = System.Math.Ceiling (n * 100) / 100; // 3.15
in my case, just
View > Tool Windows > Gradle > right click [project] > Refresh Gradle Project
Steps for Android Wifi debugging with ADB:
$> adb devices // check all usb debuggable devices connected.
$> adb -d shell // Access device shell.
shell> ifconfig // Check and copy wifi ip-address eg:192.168.1.90
shell> exit // Exit from android device shell.
$> adb tcpip 5000 // open TCP port 5000 (or any available)
$> adb connect 192.168.1.90:5000 // connect to device via wifi ip over specific TCP port.
$> adb devices // you will get debuggabled android device over wifi.
Required: Connect your android device to computer via USB with developer mode enabled. Also connect your android device and computer to same wifi router (or use tethering).
The difference is that in the first case the retrieved user is not tracked by the context so when you are going to save the user back to database you must attach it and set correctly state of the user so that EF knows that it should update existing user instead of inserting a new one. In the second case you don't need to do that if you load and save the user with the same context instance because the tracking mechanism handles that for you.
var a = 10;
myFunction();
function myFunction(){
a = 20;
}
alert("Value of 'a' outside the function " + a); //outputs 20
Working and just tested solution for Swift 3 with Xcode 8.3.3:
self.view.layoutIfNeeded()
self.calendarViewHeight.constant = 56.0
UIView.animate(withDuration: 0.5, delay: 0.0, options: UIViewAnimationOptions.curveEaseIn, animations: {
self.view.layoutIfNeeded()
}, completion: nil)
Just keep in mind that self.calendarViewHeight is a constraint referred to a customView (CalendarView). I called the .layoutIfNeeded() on self.view and NOT on self.calendarView
Hope this help.
Here is a simple example of adding an image to a JFrame
:
frame.add(new JLabel(new ImageIcon("Path/To/Your/Image.png")));
If you are intending to make a single switch take multiple parameters, then you use nargs='+'
. If your example '-l' is actually taking integers:
a = argparse.ArgumentParser()
a.add_argument(
'-l', '--list', # either of this switches
nargs='+', # one or more parameters to this switch
type=int, # /parameters/ are ints
dest='list', # store in 'list'.
default=[], # since we're not specifying required.
)
print a.parse_args("-l 123 234 345 456".split(' '))
print a.parse_args("-l 123 -l=234 -l345 --list 456".split(' '))
Produces
Namespace(list=[123, 234, 345, 456])
Namespace(list=[456]) # Attention!
If you specify the same argument multiple times, the default action ('store'
) replaces the existing data.
The alternative is to use the append
action:
a = argparse.ArgumentParser()
a.add_argument(
'-l', '--list', # either of this switches
type=int, # /parameters/ are ints
dest='list', # store in 'list'.
default=[], # since we're not specifying required.
action='append', # add to the list instead of replacing it
)
print a.parse_args("-l 123 -l=234 -l345 --list 456".split(' '))
Which produces
Namespace(list=[123, 234, 345, 456])
Or you can write a custom handler/action to parse comma-separated values so that you could do
-l 123,234,345 -l 456
I think you want
listb.pop()[0]
The expression listb.pop
is a valid python expression which results in a reference to the pop
method, but doesn't actually call that method. You need to add the open and close parentheses to call the method.
If you want an synchronous request set the async
property to false
for the request. Check out the jQuery AJAX Doc
You can use the finish
command.
finish
: Continue running until just after function in the selected stack frame returns. Print the returned value (if any). This command can be abbreviated asfin
.
(See 5.2 Continuing and Stepping.)
Underscore is a wildcard for something. for example 'A_%' will look for all match that Start whit 'A' and have minimum 1 extra character after that
You can create an extremely simple jQuery-plugin to query an element for this:
$.fn.hasData = function(key) {
return (typeof $(this).data(key) != 'undefined');
};
Then you can simply use $("#dataTable").hasData('timer')
Gotchas:
false
only if the value does not exist (is undefined
); if it's set to false
/null
it hasData()
will still return true
.$.hasData()
which only checks if any data on the element is set.The error you quote has nothing to do with pg_hba.conf
; it's failing to connect, not failing to authorize the connection.
Do what the error message says:
Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections
You haven't shown the command that produces the error. Assuming you're connecting on localhost
port 5432
(the defaults for a standard PostgreSQL install), then either:
PostgreSQL isn't running
PostgreSQL isn't listening for TCP/IP connections (listen_addresses
in postgresql.conf
)
PostgreSQL is only listening on IPv4 (0.0.0.0
or 127.0.0.1
) and you're connecting on IPv6 (::1
) or vice versa. This seems to be an issue on some older Mac OS X versions that have weird IPv6 socket behaviour, and on some older Windows versions.
PostgreSQL is listening on a different port to the one you're connecting on
(unlikely) there's an iptables
rule blocking loopback connections
(If you are not connecting on localhost
, it may also be a network firewall that's blocking TCP/IP connections, but I'm guessing you're using the defaults since you didn't say).
So ... check those:
ps -f -u postgres
should list postgres
processes
sudo lsof -n -u postgres |grep LISTEN
or sudo netstat -ltnp | grep postgres
should show the TCP/IP addresses and ports PostgreSQL is listening on
BTW, I think you must be on an old version. On my 9.3 install, the error is rather more detailed:
$ psql -h localhost -p 12345
psql: could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 12345?
In cell A1, enter the time.
In cell B2, enter =A1+1/24
Restart your IDE and everything will be fine
Disclaimer: As of early 2015, there is a great comparison of IoC Container features from Jimmy Bogard, here is a summary:
Compared Containers:
The scenario is this: I have an interface, IMediator, in which I can send a single request/response or a notification to multiple recipients:
public interface IMediator
{
TResponse Send<TResponse>(IRequest<TResponse> request);
Task<TResponse> SendAsync<TResponse>(IAsyncRequest<TResponse> request);
void Publish<TNotification>(TNotification notification)
where TNotification : INotification;
Task PublishAsync<TNotification>(TNotification notification)
where TNotification : IAsyncNotification;
}
I then created a base set of requests/responses/notifications:
public class Ping : IRequest<Pong>
{
public string Message { get; set; }
}
public class Pong
{
public string Message { get; set; }
}
public class PingAsync : IAsyncRequest<Pong>
{
public string Message { get; set; }
}
public class Pinged : INotification { }
public class PingedAsync : IAsyncNotification { }
I was interested in looking at a few things with regards to container support for generics:
Setup for generic variance (registering handlers for base INotification/creating request pipelines) My handlers are pretty straightforward, they just output to console:
public class PingHandler : IRequestHandler<Ping, Pong> { /* Impl */ }
public class PingAsyncHandler : IAsyncRequestHandler<PingAsync, Pong> { /* Impl */ }
public class PingedHandler : INotificationHandler<Pinged> { /* Impl */ }
public class PingedAlsoHandler : INotificationHandler<Pinged> { /* Impl */ }
public class GenericHandler : INotificationHandler<INotification> { /* Impl */ }
public class PingedAsyncHandler : IAsyncNotificationHandler<PingedAsync> { /* Impl */ }
public class PingedAlsoAsyncHandler : IAsyncNotificationHandler<PingedAsync> { /* Impl */ }
Autofac
var builder = new ContainerBuilder();
builder.RegisterSource(new ContravariantRegistrationSource());
builder.RegisterAssemblyTypes(typeof (IMediator).Assembly).AsImplementedInterfaces();
builder.RegisterAssemblyTypes(typeof (Ping).Assembly).AsImplementedInterfaces();
Ninject
var kernel = new StandardKernel();
kernel.Components.Add<IBindingResolver, ContravariantBindingResolver>();
kernel.Bind(scan => scan.FromAssemblyContaining<IMediator>()
.SelectAllClasses()
.BindDefaultInterface());
kernel.Bind(scan => scan.FromAssemblyContaining<Ping>()
.SelectAllClasses()
.BindAllInterfaces());
kernel.Bind<TextWriter>().ToConstant(Console.Out);
Simple Injector
var container = new Container();
var assemblies = GetAssemblies().ToArray();
container.Register<IMediator, Mediator>();
container.Register(typeof(IRequestHandler<,>), assemblies);
container.Register(typeof(IAsyncRequestHandler<,>), assemblies);
container.RegisterCollection(typeof(INotificationHandler<>), assemblies);
container.RegisterCollection(typeof(IAsyncNotificationHandler<>), assemblies);
StructureMap
var container = new Container(cfg =>
{
cfg.Scan(scanner =>
{
scanner.AssemblyContainingType<Ping>();
scanner.AssemblyContainingType<IMediator>();
scanner.WithDefaultConventions();
scanner.AddAllTypesOf(typeof(IRequestHandler<,>));
scanner.AddAllTypesOf(typeof(IAsyncRequestHandler<,>));
scanner.AddAllTypesOf(typeof(INotificationHandler<>));
scanner.AddAllTypesOf(typeof(IAsyncNotificationHandler<>));
});
});
Unity
container.RegisterTypes(AllClasses.FromAssemblies(typeof(Ping).Assembly),
WithMappings.FromAllInterfaces,
GetName,
GetLifetimeManager);
/* later down */
static bool IsNotificationHandler(Type type)
{
return type.GetInterfaces().Any(x => x.IsGenericType && (x.GetGenericTypeDefinition() == typeof(INotificationHandler<>) || x.GetGenericTypeDefinition() == typeof(IAsyncNotificationHandler<>)));
}
static LifetimeManager GetLifetimeManager(Type type)
{
return IsNotificationHandler(type) ? new ContainerControlledLifetimeManager() : null;
}
static string GetName(Type type)
{
return IsNotificationHandler(type) ? string.Format("HandlerFor" + type.Name) : string.Empty;
}
Windsor
var container = new WindsorContainer();
container.Register(Classes.FromAssemblyContaining<IMediator>().Pick().WithServiceAllInterfaces());
container.Register(Classes.FromAssemblyContaining<Ping>().Pick().WithServiceAllInterfaces());
container.Kernel.AddHandlersFilter(new ContravariantFilter());
Select CollectionView in your storyboard and go to size inspector and set min spacing for cells and lines as 5
lazy var collectionView: UICollectionView = {
let layout = UICollectionViewFlowLayout()
layout.scrollDirection = .horizontal
//Provide Width and Height According to your need
let width = UIScreen.main.bounds.width / 4
let height = UIScreen.main.bounds.height / 10
layout.itemSize = CGSize(width: width, height: height)
//For Adjusting the cells spacing
layout.minimumInteritemSpacing = 5
layout.minimumLineSpacing = 5
return UICollectionView(frame: self.view.frame, collectionViewLayout: layout)
}()
Here are 3 separate approaches to the problem in hand along with the best choices of indexing for each of those queries (please try out the indexes yourselves and see the logical read, elapsed time, execution plan. I have provided the suggestions from my experience on such queries without executing for this specific problem).
Approach 1: Using ROW_NUMBER(). If rowstore index is not being able to enhance the performance, you can try out nonclustered/clustered columnstore index as for queries with aggregation and grouping and for tables which are ordered by in different columns all the times, columnstore index usually is the best choice.
;WITH CTE AS
(
SELECT *,
RN = ROW_NUMBER() OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC)
FROM DocumentStatusLogs
)
SELECT ID
,DocumentID
,Status
,DateCreated
FROM CTE
WHERE RN = 1;
Approach 2: Using FIRST_VALUE. If rowstore index is not being able to enhance the performance, you can try out nonclustered/clustered columnstore index as for queries with aggregation and grouping and for tables which are ordered by in different columns all the times, columnstore index usually is the best choice.
SELECT DISTINCT
ID = FIRST_VALUE(ID) OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC)
,DocumentID
,Status = FIRST_VALUE(Status) OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC)
,DateCreated = FIRST_VALUE(DateCreated) OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC)
FROM DocumentStatusLogs;
Approach 3: Using CROSS APPLY. Creating rowstore index on DocumentStatusLogs table covering the columns used in the query should be enough to cover the query without need of a columnstore index.
SELECT DISTINCT
ID = CA.ID
,DocumentID = D.DocumentID
,Status = CA.Status
,DateCreated = CA.DateCreated
FROM DocumentStatusLogs D
CROSS APPLY (
SELECT TOP 1 I.*
FROM DocumentStatusLogs I
WHERE I.DocumentID = D.DocumentID
ORDER BY I.DateCreated DESC
) CA;