Here are some conversion routines I wrote many years ago for a c++/cli project, they should still work.
void StringToStlWString ( System::String const^ s, std::wstring& os)
{
String^ string = const_cast<String^>(s);
const wchar_t* chars = reinterpret_cast<const wchar_t*>((Marshal::StringToHGlobalUni(string)).ToPointer());
os = chars;
Marshal::FreeHGlobal(IntPtr((void*)chars));
}
System::String^ StlWStringToString (std::wstring const& os) {
String^ str = gcnew String(os.c_str());
//String^ str = gcnew String("");
return str;
}
System::String^ WPtrToString(wchar_t const* pData, int length) {
if (length == 0) {
//use null termination
length = wcslen(pData);
if (length == 0) {
System::String^ ret = "";
return ret;
}
}
System::IntPtr bfr = System::IntPtr(const_cast<wchar_t*>(pData));
System::String^ ret = System::Runtime::InteropServices::Marshal::PtrToStringUni(bfr, length);
return ret;
}
void Utf8ToStlWString(char const* pUtfString, std::wstring& stlString) {
//wchar_t* pString;
MAKE_WIDEPTR_FROMUTF8(pString, pUtfString);
stlString = pString;
}
void Utf8ToStlWStringN(char const* pUtfString, std::wstring& stlString, ULONG length) {
//wchar_t* pString;
MAKE_WIDEPTR_FROMUTF8N(pString, pUtfString, length);
stlString = pString;
}
I ran into this recently. It turned out that the old DLL was compiled with a previous version (Visual Studio 2008) and was referencing that version of the dynamic runtime libraries. I was trying to run it on a system that only had .NET 4.0 on it and I'd never installed any dynamic runtime libraries. The solution? I recompiled the DLL to link the static runtime libraries.
Check your application error log in Event Viewer (EVENTVWR.EXE). It will give you more information on the error and will probably point you at the real cause of the problem.
For me, I started the app from within windows explorer (by double clicking on it). Then it crashed immediately.
I then opened Event Viewer
of windows and viewed Application
and it displayed full stacktrace of error. The stacktrace showed relation with Bitmap or images. It was then turned out to be due to app icon not found
I would suggest using MonoDevelop.
It is pretty much explicitly designed for use with Mono, and all set up to develop in C#.
The simplest way to install it on Ubuntu would be to install the monodevelop package in Ubuntu. (link on Mono on ubuntu.com) (However, if you want to install a more recent version, I am not sure which PPA would be appropriate)
However, I would not recommend developing with the WinForms toolkit - I do not expect it to have the same behavior in Windows and Mono (the implementations are pretty different). For an overview of the UI toolkits that work with Mono, you can go to the information page on Mono-project.
From within a function, rm all objects in .GlobalEnv except the function
initialize <- function(country.name) {
if (length(setdiff(ls(pos = .GlobalEnv), "initialize")) > 0) {
rm(list=setdiff(ls(pos = .GlobalEnv), "initialize"), pos = .GlobalEnv)
}
}
The <img>
element is empty — it doesn't have an end tag.
If the image is a background image, use CSS. If it is a content image, then set position: relative
on a container, then absolutely position the image and/or text within it.
The --no-ff
flag prevents git merge
from executing a "fast-forward" if it detects that your current HEAD
is an ancestor of the commit you're trying to merge. A fast-forward is when, instead of constructing a merge commit, git just moves your branch pointer to point at the incoming commit. This commonly occurs when doing a git pull
without any local changes.
However, occasionally you want to prevent this behavior from happening, typically because you want to maintain a specific branch topology (e.g. you're merging in a topic branch and you want to ensure it looks that way when reading history). In order to do that, you can pass the --no-ff
flag and git merge
will always construct a merge instead of fast-forwarding.
Similarly, if you want to execute a git pull
or use git merge
in order to explicitly fast-forward, and you want to bail out if it can't fast-forward, then you can use the --ff-only
flag. This way you can regularly do something like git pull --ff-only
without thinking, and then if it errors out you can go back and decide if you want to merge or rebase.
Create an initializer for it:
# config/initializers/time_formats.rb
Add something like this to it:
Time::DATE_FORMATS[:custom_datetime] = "%d.%m.%Y"
And then use it the following way:
post.updated_at.to_s(:custom_datetime)
?? Your have to restart rails server for this to work.
Check the documentation for more information: http://api.rubyonrails.org/v5.1/classes/DateTime.html#method-i-to_formatted_s
There are many different versions of mail around. When you go beyond mail -s subject to1@address1 to2@address2
With some mailx implementations, e.g. from mailutils on Ubuntu or Debian's bsd-mailx, it's easy, because there's an option for that.
mailx -a 'Content-Type: text/html' -s "Subject" to@address <test.html
With the Heirloom mailx, there's no convenient way. One possibility to insert arbitrary headers is to set editheaders=1 and use an external editor (which can be a script).
## Prepare a temporary script that will serve as an editor.
## This script will be passed to ed.
temp_script=$(mktemp)
cat <<'EOF' >>"$temp_script"
1a
Content-Type: text/html
.
$r test.html
w
q
EOF
## Call mailx, and tell it to invoke the editor script
EDITOR="ed -s $temp_script" heirloom-mailx -S editheaders=1 -s "Subject" to@address <<EOF
~e
.
EOF
rm -f "$temp_script"
With a general POSIX mailx, I don't know how to get at headers.
If you're going to use any mail or mailx, keep in mind that
This isn't portable even within a given Linux distribution. For example, both Ubuntu and Debian have several alternatives for mail and mailx.
When composing a message, mail and mailx treats lines beginning with ~ as commands. If you pipe text into mail, you need to arrange for this text not to contain lines beginning with ~.
If you're going to install software anyway, you might as well install something more predictable than mail/Mail/mailx. For example, mutt. With Mutt, you can supply most headers in the input with the -H option, but not Content-Type, which needs to be set via a mutt option.
mutt -e 'set content_type=text/html' -s 'hello' 'to@address' <test.html
Or you can invoke sendmail directly. There are several versions of sendmail out there, but they all support sendmail -t to send a mail in the simplest fashion, reading the list of recipients from the mail. (I think they don't all support Bcc:.) On most systems, sendmail isn't in the usual $PATH, it's in /usr/sbin or /usr/lib.
cat <<'EOF' - test.html | /usr/sbin/sendmail -t
To: to@address
Subject: hello
Content-Type: text/html
EOF
Google Chrome Developer Tools has (a currently experimental) feature called CSS Overview which will allow you to find unused CSS rules.
To enable it follow these steps:
This is the most coder-friendly version of specifying a unicode character:
degree_sign= u'\N{DEGREE SIGN}'
Note: must be a capital N in the \N
construct to avoid confusion with the '\n' newline character. The character name inside the curly braces can be any case.
It's easier to remember the name of a character than its unicode index. It's also more readable, ergo debugging-friendly. The character substitution happens at compile time: the .py[co]
file will contain a constant for u'°'
:
>>> import dis
>>> c= compile('u"\N{DEGREE SIGN}"', '', 'eval')
>>> dis.dis(c)
1 0 LOAD_CONST 0 (u'\xb0')
3 RETURN_VALUE
>>> c.co_consts
(u'\xb0',)
>>> c= compile('u"\N{DEGREE SIGN}-\N{EMPTY SET}"', '', 'eval')
>>> c.co_consts
(u'\xb0-\u2205',)
>>> print c.co_consts[0]
°-Ø
I'm suprised that no one mentioned this.
Use the Sieve Of Eratosthenes
Details:
The sieve of Eratosthenes finds a prime number and stores it. When a new number is checked for primeness all of the previous primes are checked against the know prime list.
Reasons:
Try this.
namespace EraseJunkFiles
{
class Program
{
static void Main(string[] args)
{
DirectoryInfo yourRootDir = new DirectoryInfo(@"C:\somedirectory\");
foreach (DirectoryInfo dir in yourRootDir.GetDirectories())
DeleteDirectory(dir.FullName, true);
}
public static void DeleteDirectory(string directoryName, bool checkDirectiryExist)
{
if (Directory.Exists(directoryName))
Directory.Delete(directoryName, true);
else if (checkDirectiryExist)
throw new SystemException("Directory you want to delete is not exist");
}
}
}
I'll leave the discussion of the difference between Build Tools, Platform Tools, and Tools to others. From a practical standpoint, you only need to know the answer to your second question:
Answer: Use the most recent version.
For those using Android Studio with Gradle, the buildToolsVersion
has to be set in the build.gradle
(Module: app) file.
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
...
}
Open the Android SDK Manager.
The last item will show the most recent version.
Make sure it is installed and then write that number as the buildToolsVersion
in build.gradle
(Module: app).
The functions with an s
take string parameters. The others take file
streams.
I found this url to be very useful: https://social.msdn.microsoft.com/Forums/sqlserver/en-US/2cdcab2e-ea49-4fd5-b2b8-13824ab4619b/help-server-not-listening-on-1433
In particular, my problem was that I did not enable the TCP/IP in Sql Server Configuration Manager->SQL Server Network Configuration->Protocols for SQLEXPRESS.
Once you open it, you have to go to the IP Addresses tab and for me, changing IPAll to TCP port 1433 and deleting the TCP Dynamic Ports value worked.
Follow the other steps to make sure 1433 is listening (Use netstat -an to make sure 0.0.0.0:1433 is LISTENING.), and that you can telnet to the port from the client machine.
Finally, I second the suggestion to remove the \SQLEXPRESS from the connection.
EDIT: I should note I am using SQL Server 2014 Express.
This answer by Jaap :
<div class="image"></div>?
and in CSS :
div.image {
content:url(http://placehold.it/350x150);
}?
you can try it on this link : http://jsfiddle.net/XAh2d/
this is a link about css content http://css-tricks.com/css-content/
This has been tested on Chrome, firefox and Safari. (I'm on a mac, so if someone has the result on IE, tell me to add it)
The accepted answer currently fires twice for animations in Chrome. Presumably this is because it recognizes webkitAnimationEnd
as well as animationEnd
. The following will definitely only fires once:
/* From Modernizr */
function whichTransitionEvent(){
var el = document.createElement('fakeelement');
var transitions = {
'animation':'animationend',
'OAnimation':'oAnimationEnd',
'MSAnimation':'MSAnimationEnd',
'WebkitAnimation':'webkitAnimationEnd'
};
for(var t in transitions){
if( transitions.hasOwnProperty(t) && el.style[t] !== undefined ){
return transitions[t];
}
}
}
$("#elementToListenTo")
.on(whichTransitionEvent(),
function(e){
console.log('Transition complete! This is the callback!');
$(this).off(e);
});
Always check with your business domain expert. If that's you, look for an industry standard. If, for example, the domain in question is a natural person's family name (surname) then for a UK business I'd go to the UK Govtalk data standards catalogue for person information and discover that a family name will be between 1 and 35 characters.
void CMRSMATH1Dlg::Loadit(TCHAR *destination, CDC &memdc)
{
CImage img;
PBITMAPINFO bmi;
BITMAPINFOHEADER Info;
BITMAPFILEHEADER bFileHeader;
CBitmap bm;
CFile file2;
file2.Open(destination, CFile::modeRead | CFile::typeBinary);
file2.Read(&bFileHeader, sizeof(BITMAPFILEHEADER));
file2.Read(&Info, sizeof(BITMAPINFOHEADER));
BYTE ch;
int width = Info.biWidth;
int height = Info.biHeight;
if (height < 0)height = -height;
int size1 = width*height * 3;
int size2 = ((width * 24 + 31) / 32) * 4 * height;
int widthnew = (size2 - size1) / height;
BYTE * buffer = (BYTE *)GlobalAlloc(GPTR, size2);
//////////////////////////
HGDIOBJ old;
unsigned char alpha = 0;
int z = 0;
z = 0;
int gap = (size2 - size1) / height;
for (int y = 0;y < height;y++)
{
for (int x = 0;x < width*3;x++)
{
file2.Read(&ch, 1);
buffer[z] = ch;
z++;
}
for (int z1 = 0;z1 <gap;z1++)
{
file2.Read(&ch,1);
}
}
bm.CreateCompatibleBitmap(&memdc, width, height);
bm.SetBitmapBits(size1,buffer);
old = memdc.SelectObject(&bm);
///////////////////////////
//bm.SetBitmapBits(size1, buffer);
GetDC()->BitBlt(1, 95, width, height, &memdc, 0, 0, SRCCOPY);
memdc.SelectObject(&old);
bm.DeleteObject();
GlobalFree(buffer);
file2.Close();
}
void CMRSMATH1Dlg::saveit(CBitmap &bit1, CDC &memdc, TCHAR *destination)
{
BITMAP bm;
PBITMAPINFO bmi;
BITMAPINFOHEADER Info;
BITMAPFILEHEADER bFileHeader;
CFile file1;
CSize size = bit1.GetBitmap(&bm);
int z = 0;
BYTE ch = 0;
size.cx = bm.bmWidth;
size.cy = bm.bmHeight;
int width = size.cx;
int size1 = (size.cx)*(size.cy);
int size2 = size1 * 3;
size1 = ((size.cx * 24 + 31) / 32) *4* size.cy;
BYTE * buffer = (BYTE *)GlobalAlloc(GPTR, size2);
bFileHeader.bfType = 'B' + ('M' << 8);
bFileHeader.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);
bFileHeader.bfSize = bFileHeader.bfOffBits + size1;
bFileHeader.bfReserved1 = 0;
bFileHeader.bfReserved2 = 0;
Info.biSize = sizeof(BITMAPINFOHEADER);
Info.biPlanes = 1;
Info.biBitCount = 24;//bm.bmBitsPixel;//bitsperpixel///////////////////32
Info.biCompression = BI_RGB;
Info.biWidth =bm.bmWidth;
Info.biHeight =-bm.bmHeight;///reverse pic if negative height
Info.biSizeImage =size1;
Info.biClrImportant = 0;
if (bm.bmBitsPixel <= 8)
{
Info.biClrUsed = 1 << bm.bmBitsPixel;
}else
Info.biClrUsed = 0;
Info.biXPelsPerMeter = 0;
Info.biYPelsPerMeter = 0;
bit1.GetBitmapBits(size2, buffer);
file1.Open(destination, CFile::modeCreate | CFile::modeWrite |CFile::typeBinary,0);
file1.Write(&bFileHeader, sizeof(BITMAPFILEHEADER));
file1.Write(&Info, sizeof(BITMAPINFOHEADER));
unsigned char alpha = 0;
for (int y = 0;y<size.cy;y++)
{
for (int x = 0;x<size.cx;x++)
{
//for reverse picture below
//z = (((size.cy - 1 - y)*size.cx) + (x)) * 3;
z = (((y)*size.cx) + (x)) * 3;
file1.Write(&buffer[z], 1);
file1.Write(&buffer[z + 1], 1);
file1.Write(&buffer[z + 2], 1);
}
for (int z = 0;z < (size1 - size2) / size.cy;z++)
{
file1.Write(&alpha, 1);
}
}
GlobalFree(buffer);
file1.Close();
file1.m_hFile = NULL;
}
ldap authentication without SSL is not safe and anyone can view user credential because ldap client transfer usernamae and password during ldap bind operation So Always use ldaps protocol. source: Ldap authentication Active directory in Java Spring Security with Example
Check this code:
<!-- script to check whether checkbox checked or not using prop function -->
<script>
$('#change_password').click(function(){
if($(this).prop("checked") == true){ //can also use $(this).prop("checked") which will return a boolean.
alert("checked");
}
else if($(this).prop("checked") == false){
alert("Checkbox is unchecked.");
}
});
</script>
Also worth noting, for people who find this in their searches, is this...
<div ng-repeat="button in buttons" class="bb-button" ng-click="goTo(button.path)">
<div class="bb-button-label">{{ button.label }}</div>
<div class="bb-button-description">{{ button.description }}</div>
</div>
Note the value of ng-click
. The parameter passed to goTo()
is a string from a property of the binding object (the button
), but it is not wrapped in quotes. Looks like AngularJS handles that for us. I got hung up on that for a few minutes.
Presume you linking to a shared drive for example the S drive? If so, other people may have mapped the drive differently. You probably need to use the "official" drive name //euhkj002/forecasts/bla bla. Instead of S// in your link
For completeness' sake, I thought it would be worthwhile summarizing the various possible outcomes and supplying references for the exact behaviour of each:
__file__
is the currently executing file, as detailed in the official documentation:
__file__
is the pathname of the file from which the module was loaded, if it was loaded from a file. The__file__
attribute may be missing for certain types of modules, such as C modules that are statically linked into the interpreter; for extension modules loaded dynamically from a shared library, it is the pathname of the shared library file.
From Python3.4 onwards, per issue 18416, __file__
is always an absolute path, unless the currently executing file is a script that has been executed directly (not via the interpreter with the -m
command line option) using a relative path.
__main__.__file__
(requires importing __main__
) simply accesses the aforementioned __file__
attribute of the main module, e.g. of the script that was invoked from the command line.
From Python3.9 onwards, per issue 20443, the __file__
attribute of the __main__
module became an absolute path, rather than a relative path.
sys.argv[0]
(requires importing sys
) is the script name that was invoked from the command line, and might be an absolute path, as detailed in the official documentation:
argv[0]
is the script name (it is operating system dependent whether this is a full pathname or not). If the command was executed using the-c
command line option to the interpreter,argv[0]
is set to the string'-c'
. If no script name was passed to the Python interpreter,argv[0]
is the empty string.
As mentioned in another answer to this question, Python scripts that were converted into stand-alone executable programs via tools such as py2exe or PyInstaller might not display the desired result when using this approach (i.e. sys.argv[0]
would hold the name of the executable rather than the name of the main Python file within that executable).
If none of the aforementioned options seem to work, probably due to an atypical execution process or an irregular import operation, the inspect module might prove useful. In particular, invoking inspect.stack()[-1][1]
should work, although it would raise an exception when running in an implementation without Python stack frame.
From Python3.6 onwards, and as detailed in another answer to this question, it's possible to install an external open source library, lib_programname, which is tailored to provide a complete solution to this problem.
This library iterates through all of the approaches listed above until a valid path is returned. If all of them fail, it raises an exception. It also tries to address various pitfalls, such as invocations via the pytest framework or the pydoc module.
import lib_programname
# this returns the fully resolved path to the launched python program
path_to_program = lib_programname.get_path_executed_script() # type: pathlib.Path
When dealing with an approach that happens to return a relative path, it might be tempting to invoke various path manipulation functions, such as os.path.abspath(...)
or os.path.realpath(...)
in order to extract the full or real path.
However, these methods rely on the current path in order to derive the full path. Thus, if a program first changes the current working directory, for example via os.chdir(...)
, and only then invokes these methods, they would return an incorrect path.
If the current script is a symbolic link, then all of the above would return the path of the symbolic link rather than the path of the real file and os.path.realpath(...)
should be invoked in order to extract the latter.
os.path.basename(...)
may be invoked on any of the above in order to extract the actual file name and os.path.splitext(...)
may be invoked on the actual file name in order to truncate its suffix, as in os.path.splitext(os.path.basename(...))
.
From Python 3.4 onwards, per PEP 428, the PurePath
class of the pathlib
module may be used as well on any of the above. Specifically, pathlib.PurePath(...).name
extracts the actual file name and pathlib.PurePath(...).stem
extracts the actual file name without its suffix.
You can use the * selector to change the child styles back to the default
example
#parent {
white-space: pre-wrap;
}
#parent * {
white-space: initial;
}
Shortest possible code seems to be something like
// $dblink contain database login details
// $tblName the current table name
$r = mysqli_fetch_assoc(mysqli_query($dblink, "SHOW KEYS FROM $tblName WHERE Key_name = 'PRIMARY'"));
$iColName = $r['Column_name'];
You can loop through all the Animals using foreach and put it into NewAnimals.
Best solution is to use the extension we created at CodePath called SmartFragmentStatePagerAdapter. Following that guide, this makes retrieving fragments and the currently selected fragment from a ViewPager significantly easier. It also does a better job of managing the memory of the fragments embedded within the adapter.
You can fix this issue by adding a project ext property googlePlayServicesVersion
to app/App_Resources/Android/app.gradle
file like this:
project.ext {
googlePlayServicesVersion = "+"
}
I was trying to wrap my Docker commands in gulp tasks and realised that you can do the following:
docker stop container-name
docker rm container-name
This might not work for scenarios where you have multiple containers with the same name (if that's possible), but for my use case it was perfect.
Your index.html can just do src="images/logo.png"
and from sub.html you would do src="../images/logo.png"
The --no-ff
option is useful when you want to have a clear notion of your feature branch. So even if in the meantime no commits were made, FF is possible - you still want sometimes to have each commit in the mainline correspond to one feature. So you treat a feature branch with a bunch of commits as a single unit, and merge them as a single unit. It is clear from your history when you do feature branch merging with --no-ff
.
If you do not care about such thing - you could probably get away with FF whenever it is possible. Thus you will have more svn-like feeling of workflow.
For example, the author of this article thinks that --no-ff
option should be default and his reasoning is close to that I outlined above:
Consider the situation where a series of minor commits on the "feature" branch collectively make up one new feature: If you just do "git merge feature_branch" without --no-ff
, "it is impossible to see from the Git history which of the commit objects together have implemented a feature—you would have to manually read all the log messages. Reverting a whole feature (i.e. a group of commits), is a true headache [if --no-ff
is not used], whereas it is easily done if the --no-ff
flag was used [because it's just one commit]."
Clear your cookies
When using PHPMyAdmin configured with multiple databases, one having the phpmyadmin table and another not having it; phpmyadmin will store preferences for the database with the table in your cookies then try to load them with the database that doesn't have the table.
To test, try using an incognito window.
Felipsmartins is correct.
It is worth mentioning that it is because you cannot really use the -d/--data option if this is not a POST request. But this is still possible if you use the -G option.
Which means you can do this:
curl -X DELETE -G 'http://localhost:5000/locations' -d 'id=3'
Here it is a bit silly but when you are on the command line and you have a lot of parameters, it is a lot tidier.
I am saying this because cURL commands are usually quite long, so it is worth making it on more than one line escaping the line breaks.
curl -X DELETE -G \
'http://localhost:5000/locations' \
-d id=3 \
-d name=Mario \
-d surname=Bros
This is obviously a lot more comfortable if you use zsh. I mean when you need to re-edit the previous command because zsh lets you go line by line. (just saying)
Hope it helps.
You Just need to subtract one day from today's date. In Python datetime.timedelta
object lets you create specific spans of time as a timedelta
object.
datetime.timedelta(1)
gives you the duration of "one day" and is subtractable from a datetime
object. After you subtracted the objects you can use datetime.strftime
in order to convert the result --which is a date object-- to string format based on your format of choice:
>>> from datetime import datetime, timedelta
>>> yesterday = datetime.now() - timedelta(1)
>>> type(yesterday)
>>> datetime.datetime
>>> datetime.strftime(yesterday, '%Y-%m-%d')
'2015-05-26'
Note that instead of calling the datetime.strftime
function, you can also directly use strftime
method of datetime
objects:
>>> (datetime.now() - timedelta(1)).strftime('%Y-%m-%d')
'2015-05-26'
As a function:
def yesterday(string=False):
yesterday = datetime.now() - timedelta(1)
if string:
return yesterday.strftime('%Y-%m-%d')
return yesterday
The bottom statement is equivalent to:
.half {
flex-grow: 0;
flex-shrink: 0;
flex-basis: 50%;
}
Which, in this case, would be equivalent as the box is not allowed to flex and therefore retains the initial width set by flex-basis.
Flex-basis defines the default size of an element before the remaining space is distributed so if the element were allowed to flex (grow/shrink) it may not be 50% of the width of the page.
I've found that I regularly return to https://css-tricks.com/snippets/css/a-guide-to-flexbox/ for help regarding flexbox :)
On windows XP you get this error if postgres is not installed ...
On Linux man ascii
says:
ASCII is the American Standard Code for Information Interchange. It is a 7-bit code.
ContextLoaderListener
has its own context which is shared by all servlets and filters. By default it will search /WEB-INF/applicationContext.xml
You can customize this by using
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/somewhere-else/root-context.xml</param-value>
</context-param>
on web.xml
, or remove this listener if you don't need one.
I know this is a couple of years late, but this is the 3rd Google response now for "Tkinter hide Label" as of 10/27/13... So if anyone like myself a few weeks ago is building a simple GUI and just wants some text to appear without swapping it out for another widget via "lower" or "lift" methods, I'd like to offer a workaround I use (Python2.7,Windows):
from Tkinter import *
class Top(Toplevel):
def __init__(self, parent, title = "How to Cheat and Hide Text"):
Toplevel.__init__(self,parent)
parent.geometry("250x250+100+150")
if title:
self.title(title)
parent.withdraw()
self.parent = parent
self.result = None
dialog = Frame(self)
self.initial_focus = self.dialog(dialog)
dialog.pack()
def dialog(self,parent):
self.parent = parent
self.L1 = Label(parent,text = "Hello, World!",state = DISABLED, disabledforeground = parent.cget('bg'))
self.L1.pack()
self.B1 = Button(parent, text = "Are You Alive???", command = self.hello)
self.B1.pack()
def hello(self):
self.L1['state']="normal"
if __name__ == '__main__':
root=Tk()
ds = Top(root)
root.mainloop()
The idea here is that you can set the color of the DISABLED text to the background ('bg') of the parent using ".cget('bg')" http://effbot.org/tkinterbook/widget.htm rendering it "invisible". The button callback resets the Label to the default foreground color and the text is once again visible.
Downsides here are that you still have to allocate the space for the text even though you can't read it, and at least on my computer, the text doesn't perfectly blend to the background. Maybe with some tweaking the color thing could be better and for compact GUIs, blank space allocation shouldn't be too much of a hassle for a short blurb.
See Default window colour Tkinter and hex colour codes for the info about how I found out about the color stuff.
There are two issues here:
The first issue is, adding to an Collection
after an Iterator
is returned. As mentioned, there is no defined behavior when the underlying Collection
is modified, as noted in the documentation for Iterator.remove
:
... The behavior of an iterator is unspecified if the underlying collection is modified while the iteration is in progress in any way other than by calling this method.
The second issue is, even if an Iterator
could be obtained, and then return to the same element the Iterator
was at, there is no guarantee about the order of the iteratation, as noted in the Collection.iterator
method documentation:
... There are no guarantees concerning the order in which the elements are returned (unless this collection is an instance of some class that provides a guarantee).
For example, let's say we have the list [1, 2, 3, 4]
.
Let's say 5
was added when the Iterator
was at 3
, and somehow, we get an Iterator
that can resume the iteration from 4
. However, there is no guarentee that 5
will come after 4
. The iteration order may be [5, 1, 2, 3, 4]
-- then the iterator will still miss the element 5
.
As there is no guarantee to the behavior, one cannot assume that things will happen in a certain way.
One alternative could be to have a separate Collection
to which the newly created elements can be added to, and then iterating over those elements:
Collection<String> list = Arrays.asList(new String[]{"Hello", "World!"});
Collection<String> additionalList = new ArrayList<String>();
for (String s : list) {
// Found a need to add a new element to iterate over,
// so add it to another list that will be iterated later:
additionalList.add(s);
}
for (String s : additionalList) {
// Iterate over the elements that needs to be iterated over:
System.out.println(s);
}
Edit
Elaborating on Avi's answer, it is possible to queue up the elements that we want to iterate over into a queue, and remove the elements while the queue has elements. This will allow the "iteration" over the new elements in addition to the original elements.
Let's look at how it would work.
Conceptually, if we have the following elements in the queue:
[1, 2, 3, 4]
And, when we remove 1
, we decide to add 42
, the queue will be as the following:
[2, 3, 4, 42]
As the queue is a FIFO (first-in, first-out) data structure, this ordering is typical. (As noted in the documentation for the Queue
interface, this is not a necessity of a Queue
. Take the case of PriorityQueue
which orders the elements by their natural ordering, so that's not FIFO.)
The following is an example using a LinkedList
(which is a Queue
) in order to go through all the elements along with additional elements added during the dequeing. Similar to the example above, the element 42
is added when the element 2
is removed:
Queue<Integer> queue = new LinkedList<Integer>();
queue.add(1);
queue.add(2);
queue.add(3);
queue.add(4);
while (!queue.isEmpty()) {
Integer i = queue.remove();
if (i == 2)
queue.add(42);
System.out.println(i);
}
The result is the following:
1
2
3
4
42
As hoped, the element 42
which was added when we hit 2
appeared.
This is another dark Eclipse theme: http://blog.prabir.me/post/Dark-Eclipse-Theme.aspx.
I have the Visual Studio equivalent of the theme.
You can try the below function to get value from JSON string,
public static String GetJSONValue(String JSONString, String Field)
{
return JSONString.substring(JSONString.indexOf(Field), JSONString.indexOf("\n", JSONString.indexOf(Field))).replace(Field+"\": \"", "").replace("\"", "").replace(",","");
}
try using "." E.g.
File currentDirectory = new File(".");
This worked for me
this is because the return type of your method is int and OrdersPerHour is int? (nullable) , you can solve this by returning its value like below:
return OrdersPerHour.Value
also check if its not null to avoid exception like as below:
if(OrdersPerHour != null)
{
return OrdersPerHour.Value;
}
else
{
return 0; // depends on your choice
}
but in this case you will have to return some other value in the else part or after the if part otherwise compiler will flag an error that not all paths of code return value.
In java 8 you can also use a reducer, something like:
public static String join(List<String> strings, String joinStr) {
return strings.stream().reduce("", (prev, cur) -> prev += (cur + joinStr));
}
It will be better for you to write your code like this.
In your Controller Write this code.
function new_blank_order_summary() {
$query = $this->sales_model->order_summary_insert();
if($query) {
$this->load->view('sales/new_blank_order_summary');
} else {
$this->load->view('sales/data_insertion_failed');
}
}
and in your Model
function order_summary_insert() {
$orderLines = trim(xss_clean($this->input->post('orderlines')));
$customerName = trim(xss_clean($this->input->post('customer')));
$data = array(
'OrderLines'=>$orderLines,
'CustomerName'=>$customerName
);
$this->db->insert('Customer_Orders',$data);
return ($this->db->affected_rows() != 1) ? false : true;
}
org.apache.commons.lang.ArrayUtils can do this
num = (int []) ArrayUtils.add(num, 12); // builds new array with 12 appended
For swift 4
@IBOutlet weak var someView: UIView!
let gesture = UITapGestureRecognizer(target: self, action: #selector (self.someAction (_:)))
self.someView.addGestureRecognizer(gesture)
@objc func someAction(_ sender:UITapGestureRecognizer){
print("view was clicked")
}
I tried the above suggested npm install --global --production windows-build-tools
but found that the installation was always hanging forever.
I managed to fix the problem by installing Node.js 8 instead of Node.js 10.
You can try to implement direct link node -> fastcgi -> php. In the previous answer, nginx serves php requests using http->fastcgi serialisation->unix socket->php and node requests as http->nginx reverse proxy->node http server.
It seems that node-fastcgi paser is useable at the moment, but only as a node fastcgi backend. You need to adopt it to use as a fastcgi client to php fastcgi server.
from traceback import format_exc
try:
fault = 10/0
except ZeroDivision:
print(format_exc())
Another possibility is to use the format_exc() method from the traceback module.
When I want to develop insensitive case searchs, I always convert every string to lower case before do comparasion
Simply add container to sticky navbar ;
Applies to Ubuntu and Linux Mint
In the archive:
sudo nano .bashrc
Add to the end:
export ANDROID_HOME=${HOME}/Android/Sdk
export PATH=${PATH}:${ANDROID_HOME}/platform-tools:${ANDROID_HOME}/tools
Restart the terminal and doing: echo $ HOME or $ PATH, you can know these variables.
You can use string.Split
and string.Join
:
string theString = "Some Very Large String Here";
var array = theString.Split(' ');
string firstElem = array.First();
string restOfArray = string.Join(" ", array.Skip(1));
If you know you always only want to split off the first element, you can use:
var array = theString.Split(' ', 2);
This makes it so you don't have to join:
string restOfArray = array[1];
I had a similar problem. I solved it using:
find dir_name '*.mp3' -exec cp -vuni '{}' "../dest_dir" ";"
The '{}'
and ";"
executes the copy on each file.
You can add a new source directory with build-helper:
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/generated</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
There are necessary steps that are missing in the above answers to work for all levels of devs:
In your Project->General->Deployment info
Statusbar Style:--
just marked Hide status Bar(iOS 10)
Nowadays, Java 8 allows for a one-line functional solution that is cleaner, faster, and a whole lot simpler than the accepted solution:
List<String> list = new ArrayList<>();
list.add("behold");
list.add("bend");
list.add("bet");
list.add("bear");
list.add("beat");
list.add("become");
list.add("begin");
List<String> matches = list.stream().filter(it -> it.contains("bea")).collect(Collectors.toList());
System.out.println(matches); // [bear, beat]
And even easier in Kotlin:
val matches = list.filter { it.contains("bea") }
Be careful with nulls and checking for inequality in sql server.
For example
select * from foo where bla <> 'something'
will NOT return records where bla is null. Even though logically it should.
So the right way to check would be
select * from foo where isnull(bla,'') <> 'something'
Which of course people often forget and then get weird bugs.
For versions 6.6+ you need to uncheck "Remember the current session for next launch" on Settings -> Preferences -> Backup
.
For older versions you need to uncheck "Remember the current session for next launch"
on Settings -> Preferences
.
If you're looking for an address (IPv4) of the specific interface say wlan0 then try this code which uses getifaddrs():
#include <arpa/inet.h>
#include <sys/socket.h>
#include <netdb.h>
#include <ifaddrs.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
int main(int argc, char *argv[])
{
struct ifaddrs *ifaddr, *ifa;
int family, s;
char host[NI_MAXHOST];
if (getifaddrs(&ifaddr) == -1)
{
perror("getifaddrs");
exit(EXIT_FAILURE);
}
for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next)
{
if (ifa->ifa_addr == NULL)
continue;
s=getnameinfo(ifa->ifa_addr,sizeof(struct sockaddr_in),host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
if((strcmp(ifa->ifa_name,"wlan0")==0)&&(ifa->ifa_addr->sa_family==AF_INET))
{
if (s != 0)
{
printf("getnameinfo() failed: %s\n", gai_strerror(s));
exit(EXIT_FAILURE);
}
printf("\tInterface : <%s>\n",ifa->ifa_name );
printf("\t Address : <%s>\n", host);
}
}
freeifaddrs(ifaddr);
exit(EXIT_SUCCESS);
}
You can replace wlan0 with eth0 for ethernet and lo for local loopback.
The structure and detailed explanations of the data structures used could be found here.
To know more about linked list in C this page will be a good starting point.
You could use cast
(as int) after replacing NaN
with 0
,
data_df = df.withColumn("Plays", df.call_time.cast('float'))
When I were trying install librosa
package with pip
(pip install librosa
), this error were appeared:
ERROR: Cannot uninstall 'llvmlite'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
I tried to remove llvmlite
, but pip uninstall
could not remove it. So, I used capability of ignore
of pip
by this code:
pip install librosa --ignore-installed llvmlite
Indeed, you can use this rule for ignoring a package you don't want to consider:
pip install {package you want to install} --ignore-installed {installed package you don't want to consider}
In EF Core, I use the following statements to rename tables and columns:
As for renaming tables:
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.RenameTable(name: "OldTableName", schema: "dbo", newName: "NewTableName", newSchema: "dbo");
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.RenameTable(name: "NewTableName", schema: "dbo", newName: "OldTableName", newSchema: "dbo");
}
As for renaming columns:
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.RenameColumn(name: "OldColumnName", table: "TableName", newName: "NewColumnName", schema: "dbo");
}
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.RenameColumn(name: "NewColumnName", table: "TableName", newName: "OldColumnName", schema: "dbo");
}
You will need to repeat your call to strtol
inside your loops where you are asking the user to try again. In fact, if you make the loop a do { ... } while(...);
instead of while, you don't get a the same sort of repeat things twice behaviour.
You should also format your code so that it's possible to see where the code is inside a loop and not.
show procedure status;
using this command you can see the all procedures in databases
HTTP Authorization header problem can be addressed with the following:
var ws = new WebSocket("ws://username:[email protected]/service");
Then, a proper Basic Authorization HTTP header will be set with the provided username
and password
. If you need Basic Authorization, then you're all set.
I want to use Bearer
however, and I resorted to the following trick: I connect to the server as follows:
var ws = new WebSocket("ws://[email protected]/service");
And when my code at the server side receives Basic Authorization header with non-empty username and empty password, then it interprets the username as a token.
code example below:
g.setFont(new Font("TimesRoman", Font.PLAIN, 30));
g.drawString("Welcome to the Java Applet", 20 , 20);
This is short, sweet, and should work in PHP4+.
function getDatesFromRange($start, $end){
$dates = array($start);
while(end($dates) < $end){
$dates[] = date('Y-m-d', strtotime(end($dates).' +1 day'));
}
return $dates;
}
Finally I found solution myself.
I had to annotate enum with @JsonSerialize(using = OrderTypeSerializer.class)
and implement custom serializer:
public class OrderTypeSerializer extends JsonSerializer<OrderType> {
@Override
public void serialize(OrderType value, JsonGenerator generator,
SerializerProvider provider) throws IOException,
JsonProcessingException {
generator.writeStartObject();
generator.writeFieldName("id");
generator.writeNumber(value.getId());
generator.writeFieldName("name");
generator.writeString(value.getName());
generator.writeEndObject();
}
}
The title "WPF Label Foreground Color" is very simple (exactly what I was looking for) but the OP's code is so cluttered it's easy to miss how simple it can be to set text foreground color on two different labels:
<StackPanel>
<Label Foreground="Red">Red text</Label>
<Label Foreground="Blue">Blue text</Label>
</StackPanel>
In summary, No, there was nothing wrong with your snippet.
setDatabasePath() method was deprecated in API level 19. I advise you to use storage locale like this:
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setDatabaseEnabled(true);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
webView.getSettings().setDatabasePath("/data/data/" + webView.getContext().getPackageName() + "/databases/");
}
In my exprience I added two Jquery libraries in my file.The versions were jquery 1.11.1 and 2.1.Suddenly I took out 2.1 Jquery from my code. Then ran it and was working for me well. After trying out the first answer. please check out your file like I said above.
The best and the easiest ways to create a copy of a dict in both Python 2.7 and 3 are...
To create a copy of simple(single-level) dictionary:
1. Using dict() method, instead of generating a reference that points to the existing dict.
my_dict1 = dict()
my_dict1["message"] = "Hello Python"
print(my_dict1) # {'message':'Hello Python'}
my_dict2 = dict(my_dict1)
print(my_dict2) # {'message':'Hello Python'}
# Made changes in my_dict1
my_dict1["name"] = "Emrit"
print(my_dict1) # {'message':'Hello Python', 'name' : 'Emrit'}
print(my_dict2) # {'message':'Hello Python'}
2. Using the built-in update() method of python dictionary.
my_dict2 = dict()
my_dict2.update(my_dict1)
print(my_dict2) # {'message':'Hello Python'}
# Made changes in my_dict1
my_dict1["name"] = "Emrit"
print(my_dict1) # {'message':'Hello Python', 'name' : 'Emrit'}
print(my_dict2) # {'message':'Hello Python'}
To create a copy of nested or complex dictionary:
Use the built-in copy module, which provides a generic shallow and deep copy operations. This module is present in both Python 2.7 and 3.*
import copy
my_dict2 = copy.deepcopy(my_dict1)
How about:
df <- data.frame(matrix(ncol = 3, nrow = 0))
x <- c("name", "age", "gender")
colnames(df) <- x
To do all these operations in one-liner:
setNames(data.frame(matrix(ncol = 3, nrow = 0)), c("name", "age", "gender"))
#[1] name age gender
#<0 rows> (or 0-length row.names)
Or
data.frame(matrix(ncol=3,nrow=0, dimnames=list(NULL, c("name", "age", "gender"))))
If this is your detail.html
I don't see where do you load detail.js
?
Maybe this
<script src="js/index.js"></script>
should be this
<script src="js/detail.js"></script>
?
This kind of error can also happen when using COPY and having an escaped string containing NULL values(00
) such as:
"H\x00\x00\x00tj\xA8\x9E#D\x98+\xCA\xF0\xA7\xBBl\xC5\x19\xD7\x8D\xB6\x18\xEDJ\x1En"
If you use COPY
without specifying the format 'CSV'
postgres by default will assume format 'text'
. This has a different interaction with backlashes, see text format.
If you're using COPY
or a file_fdw
make sure to specify format 'CSV'
to avoid this kind of errors.
You can hit the key q (for quit) and it should take you to the prompt.
Please see this link.
All of these are good answers, but I would like to suggest one more that I feel is a better code standard. You may choose to use a flag in the loop condition that indicates whether or not to continue looping and avoid using break
all together.
$arr = array('one', 'two', 'three', 'four', 'stop', 'five');
$length = count($arr);
$found = false;
for ($i = 0; $i < $length && !$found; $i++) {
$val = $arr[$i];
if ($val == 'stop') {
$found = true; // this will cause the code to
// stop looping the next time
// the condition is checked
}
echo "$val<br />\n";
}
I consider this to be better code practice because it does not rely on the scope that break
is used. Rather, you define a variable that indicates whether or not to break a specific loop. This is useful when you have many loops that may or may not be nested or sequential.
when you do UNIQUE
as a table level constraint as you have done then what your defining is a bit like a composite primary key see ddl constraints, here is an extract
"This specifies that the *combination* of values in the indicated columns is unique across the whole table, though any one of the columns need not be (and ordinarily isn't) unique."
this means that either field could possibly have a non unique value provided the combination is unique and this does not match your foreign key constraint.
most likely you want the constraint to be at column level. so rather then define them as table level constraints, 'append' UNIQUE
to the end of the column definition like name VARCHAR(60) NOT NULL UNIQUE
or specify indivdual table level constraints for each field.
You can pre-fetch your data by using Resolvers in Angular2+, Resolvers process your data before your Component fully be loaded.
There are many cases that you want to load your component only if there is certain thing happening, for example navigate to Dashboard only if the person already logged in, in this case Resolvers are so handy.
Look at the simple diagram I created for you for one of the way you can use the resolver to send the data to your component.
Applying Resolver to your code is pretty simple, I created the snippets for you to see how the Resolver can be created:
import { Injectable } from '@angular/core';
import { Router, Resolve, RouterStateSnapshot, ActivatedRouteSnapshot } from '@angular/router';
import { MyData, MyService } from './my.service';
@Injectable()
export class MyResolver implements Resolve<MyData> {
constructor(private ms: MyService, private router: Router) {}
resolve(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Promise<MyData> {
let id = route.params['id'];
return this.ms.getId(id).then(data => {
if (data) {
return data;
} else {
this.router.navigate(['/login']);
return;
}
});
}
}
and in the module:
import { MyResolver } from './my-resolver.service';
@NgModule({
imports: [
RouterModule.forChild(myRoutes)
],
exports: [
RouterModule
],
providers: [
MyResolver
]
})
export class MyModule { }
and you can access it in your Component like this:
/////
ngOnInit() {
this.route.data
.subscribe((data: { mydata: myData }) => {
this.id = data.mydata.id;
});
}
/////
And in the Route something like this (usually in the app.routing.ts file):
////
{path: 'yourpath/:id', component: YourComponent, resolve: { myData: MyResolver}}
////
Your expression should already match dashes, because the final - will not be interpreted as a range operator (since the range has no end). To add underscores as well, try:
([A-Za-z0-9_-]+)
I cannot comment on @Michael Blackburn, but I guess you got the downvote because the GroupBy is not necessary in this case.
Use it like:
var lookupOfCustomObjects = listOfCustomObjects.ToLookup(o=>o.PropertyName);
var listWithAllCustomObjectsWithPropertyName = lookupOfCustomObjects[propertyName]
Additionally, I've seen this perform way better than when using GroupBy().ToDictionary().
In the old language, to delete the entry with key k
from the map represented by m
, one wrote the statement,
m[k] = value, false
This syntax was a peculiar special case, the only two-to-one assignment. It required passing a value (usually ignored) that is evaluated but discarded, plus a boolean that was nearly always the constant false. It did the job but was odd and a point of contention.
In Go 1, that syntax has gone; instead there is a new built-in function, delete
. The call
delete(m, k)
will delete the map entry retrieved by the expression m[k]
. There is no return value. Deleting a non-existent entry is a no-op.
Updating: Running go fix
will convert expressions of the form m[k] = value, false
into delete(m, k)
when it is clear that the ignored value can be safely discarded from the program and false
refers to the predefined boolean constant. The fix tool will flag other uses of the syntax for inspection by the programmer.
Use these:
webview.getSettings().setBuiltInZoomControls(true);
webview.getSettings().setDisplayZoomControls(false);
This will do it:
[[NSOperationQueue mainQueue] addOperationWithBlock:^ {
//Your code goes in here
NSLog(@"Main Thread Code");
}];
Hope this helps!
This will add an image to another.
using (Graphics grfx = Graphics.FromImage(image))
{
grfx.DrawImage(newImage, x, y)
}
Graphics is in the namespace System.Drawing
Array has a length property :
[].length // 0
[0].length // 1
[4, 8, 15, 16, 23, 42].length // 6
You could try the same address with HTTP instead of HTTPS. Be aware that this does use HTTP instead of HTTPS and only some sites might support this method.
Example address: https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso
wget http://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso
*notice the http://
instead of https://
.
This is probably not recommended though :)
If you can, try use curl.
EDIT:
FYI an example with username (and prompt for password) would be:
curl --user $USERNAME -O http://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-10.3.0-amd64-netinst.iso
Where -O
is
-O, --remote-name
Write output to a local file named like the remote file we get. (Only the file part of the remote file is used, the path is cut off.)
Yes, it is possible.
try:
...
except FirstException:
handle_first_one()
except SecondException:
handle_second_one()
except (ThirdException, FourthException, FifthException) as e:
handle_either_of_3rd_4th_or_5th()
except Exception:
handle_all_other_exceptions()
See: http://docs.python.org/tutorial/errors.html
The "as" keyword is used to assign the error to a variable so that the error can be investigated more thoroughly later on in the code. Also note that the parentheses for the triple exception case are needed in python 3. This page has more info: Catch multiple exceptions in one line (except block)
Some of the answers, while correct may be a little tricky to understand. Here is an example in layman's terms:
var users = ["Sam", "Ellie", "Bernie"];
function addUser(username, callback)
{
setTimeout(function()
{
users.push(username);
callback();
}, 200);
}
function getUsers()
{
setTimeout(function()
{
console.log(users);
}, 100);
}
addUser("Jake", getUsers);
The callback means, "Jake" is always added to the users before displaying the list of users with console.log
.
Add an onchange event to your input element:
<input type="text" id="fName" value="" onchange="fName_Changed(this)" />
Javascript:
function fName_Changed(fName)
{
fName.style.borderColor = (fName.value != 'correct text') ? "#FF0000"; : fName.style.borderColor="";
}
You could try using UpdateVersion by Matt Griffith. It's quite old now, but works well. To use it, you simply need to setup a pre-build event which points at your AssemblyInfo.cs file, and the application will update the version numbers accordingly, as per the command line arguments.
As the application is open-source, I've also created a version to increment the version number using the format (Major version).(Minor version).([year][dayofyear]).(increment). I've put the code for my modified version of the UpdateVersion application on GitHub: https://github.com/munr/UpdateVersion
The concept of http location and disk location is different. What you need to do is:
summer.jpg
c:\images\summer.jpg
summer.jpg
<img src="images/summer.jpg" />
c:\images\
under your application's /images
. If you cannot do this then in step #2 you need to save somewhere under your web root, e.g c:\my-applications\demo-app\build\images
Try this
Bitmap finalBitmap;
if (bitmap.getWidth() != radius || bitmap.getHeight() != radius)
finalBitmap = Bitmap.createScaledBitmap(bitmap, radius, radius,
false);
else
finalBitmap = bitmap;
Bitmap output = Bitmap.createBitmap(finalBitmap.getWidth(),
finalBitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, finalBitmap.getWidth(),
finalBitmap.getHeight());
paint.setAntiAlias(true);
paint.setFilterBitmap(true);
paint.setDither(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.parseColor("#BAB399"));
canvas.drawCircle(finalBitmap.getWidth() / 2 + 0.7f,
finalBitmap.getHeight() / 2 + 0.7f,
finalBitmap.getWidth() / 2 + 0.1f, paint);
paint.setXfermode(new PorterDuffXfermode(
android.graphics.PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(finalBitmap, rect, rect, paint);
return output;
instead of
mySelect.toSource()
use
mySelect.val()
It is not clear why running a SELECT statement should involve enabling constraints. I don't know C# or related technologies, but I do know Informix database. There is something odd going on with the system if your querying code is enabling (and presumably also disabling) constraints.
You should also avoid the old-fashioned, non-standard Informix OUTER join notation. Unless you are using an impossibly old version of Informix, you should be using the SQL-92 style of joins.
Your question seems to mention two outer joins, but you only show one in the example query. That, too, is a bit puzzling.
The joining conditions between 'e
' and the rest of the tables is:
AND c.crsnum = e.crsnum
AND c.batch_no = e.batch_no
AND d.lect_code= e.lect_code
This is an unusual combination. Since we do not have the relevant subset of the schema with the relevant referential integrity constraints, it is hard to know whether this is correct or not, but it is a little unusual to join between 3 tables like that.
None of this is a definitive answer to you problem; however, it may provide some guidance.
One wants this to be done tersely. Nothing makes code more unreadable then spending 10 lines to achieve something elementary. In C++ (and other languages) we have all and any which help us to achieve terseness in this case. I want to check whether a function parameter is valid, meaning equal to one of a number of values. Naively and wrongly, I would first write
if (!any_of({ DNS_TYPE_A, DNS_TYPE_MX }, wtype) return false;
a second attempt could be
if (!any_of({ DNS_TYPE_A, DNS_TYPE_MX }, [&wtype](const int elem) { return elem == wtype; })) return false;
Less incorrect, but looses some terseness. However, this is still not correct because C++ insists in this case (and many others) that I specify both start and end iterators and cannot use the whole container as a default for both. So, in the end:
const vector validvalues{ DNS_TYPE_A, DNS_TYPE_MX };
if (!any_of(validvalues.cbegin(), validvalues.cend(), [&wtype](const int elem) { return elem == wtype; })) return false;
which sort of defeats the terseness, but I don't know a better alternative... Thank you for not pointing out that in the case of 2 values I could just have just if ( || ). The best approach here (if possible) is to use a case structure with a default where not only the values are checked, but also the appropriate actions are done. The default case can be used for signalling an invalid value.
You can just use the pipe on its own:
"string1|string2"
for example:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|string2", "blah"));
Output:
blah, blah, string3
The main reason to use parentheses is to limit the scope of the alternatives:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string(1|2)", "blah"));
has the same output. but if you just do this:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|2", "blah"));
you get:
blah, stringblah, string3
because you've said "string1" or "2".
If you don't want to capture that part of the expression use ?:
:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string(?:1|2)", "blah"));
In more recent browsers code like below may be enough.
<object data="https://www.w3.org/TR/PNG/iso_8859-1.txt" width="300" height="200">_x000D_
Not supported_x000D_
</object>
_x000D_
From cron manual http://man7.org/linux/man-pages/man5/crontab.5.html:
Lists are allowed. A list is a set of numbers (or ranges) separated by commas. Examples: "1,2,5,9", "0-4,8-12".
So in this case it would be:
30 10,14 * * *
Add the same color of the background to the paragraph and then invert with CSS:
div {_x000D_
background-color: #f00;_x000D_
}_x000D_
_x000D_
p { _x000D_
color: #f00;_x000D_
-webkit-filter: invert(100%);_x000D_
filter: invert(100%);_x000D_
}
_x000D_
<div>_x000D_
<p>inverted color</p>_x000D_
</div>
_x000D_
It got simplified with newer version of rxjs .
import {map} from 'rxjs/operators';
import {Observable,of, from } from 'rxjs';
Instead of chaining we need to pipe . For example
Old syntax :
source.map().switchMap().subscribe()
New Syntax:
source.pipe(map(), switchMap()).subscribe()
Note: Some operators have a name change due to name collisions with JavaScript reserved words! These include:
do
-> tap
,
catch
-> catchError
switch
-> switchAll
finally
-> finalize
I am writing this answer partly to help myself as I keep checking docs everytime I need to import an operator . Let me know if something can be done better way.
import { Rx } from 'rxjs/Rx'
;This imports the entire library. Then you don't need to worry about loading each operator . But you need to append Rx. I hope tree-shaking will optimize and pick only needed funcionts( need to verify ) As mentioned in comments , tree-shaking can not help. So this is not optimized way.
public cache = new Rx.BehaviorSubject('');
Or you can import individual operators .
This will Optimize your app to use only those files :
import { _______ } from 'rxjs/_________';
This syntax usually used for main Object like Rx
itself or Observable
etc.,
Keywords which can be imported with this syntax
Observable, Observer, BehaviorSubject, Subject, ReplaySubject
import 'rxjs/add/observable/__________';
Update for Angular 5
With Angular 5, which uses rxjs 5.5.2+
import { empty } from 'rxjs/observable/empty';
import { concat} from 'rxjs/observable/concat';
These are usually accompanied with Observable directly. For example
Observable.from()
Observable.of()
Other such keywords which can be imported using this syntax:
concat, defer, empty, forkJoin, from, fromPromise, if, interval, merge, of,
range, throw, timer, using, zip
import 'rxjs/add/operator/_________';
Update for Angular 5
With Angular 5, which uses rxjs 5.5.2+
import { filter } from 'rxjs/operators/filter';
import { map } from 'rxjs/operators/map';
These usually come in the stream after the Observable is created. Like flatMap
in this code snippet:
Observable.of([1,2,3,4])
.flatMap(arr => Observable.from(arr));
Other such keywords using this syntax:
audit, buffer, catch, combineAll, combineLatest, concat, count, debounce, delay,
distinct, do, every, expand, filter, finally, find , first, groupBy,
ignoreElements, isEmpty, last, let, map, max, merge, mergeMap, min, pluck,
publish, race, reduce, repeat, scan, skip, startWith, switch, switchMap, take,
takeUntil, throttle, timeout, toArray, toPromise, withLatestFrom, zip
FlatMap:
flatMap
is alias to mergeMap
so we need to import mergeMap
to use flatMap
.
Note for /add
imports :
We only need to import once in whole project. So its advised to do it at a single place. If they are included in multiple files, and one of them is deleted, the build will fail for wrong reasons.
Should it be LIBRARY_PATH
instead of LD_LIBRARY_PATH
.
gcc checks for LIBRARY_PATH
which can be seen with -v
option
You may get more success if you do a "search" for the runtime env from the preferences screen instead of hitting "add" - see this demo on youtube. http://www.youtube.com/watch?v=EOkN5IPoJVs&playnext_from=TL&videos=rVnITzSU2Z8 - When you hit search, you are prompted to point to the tomcat directory and then it SHOULD add it as a server runtime environment. Unfortunately for me, that is not the case (I get "no new server runtime environments were found") But you might have more success.
You can try this rating bar with much better animations
Using an ungreedy match is a good start, but I'd also suggest that you reconsider any use of .*
-- what about this?
groups = re.search(r"\([^)]*\)", x)
jQuery 1.4 has a new feature for doing this, and it rules. I've forgotten what it's called, but you use it like this:
$("a.directions-link").attr("href", function(i, href) {
return href + '?q=testing';
});
That loops over all the elements too, so no need for $.each
Did you try putting all your jars directly in the WEB-INF/lib
dir instead of sub-dirs of that?
No WEB-INF/lib/spring/org.springframework.aop-3.0.0.RELEASE.jar
, just WEB-INF/lib/org.springframework.aop-3.0.0.RELEASE.jar
Same with the rest of the jars.
Take it from someone who has tried it all three ways... just use a varchar(39)
The slightly less efficient storage far outweighs any benefit of having to convert it on insert/update and format it when showing it anywhere.
I don't think I've seen this version:
<div class="label">My Label:<span class="text">My text</span></div>
You can't have duplicate keys in a Map
. You can rather create a Map<Key, List<Value>>
, or if you can, use Guava's Multimap
.
Multimap<Integer, String> multimap = ArrayListMultimap.create();
multimap.put(1, "rohit");
multimap.put(1, "jain");
System.out.println(multimap.get(1)); // Prints - [rohit, jain]
And then you can get the java.util.Map
using the Multimap#asMap()
method.
Assuming we imported pandas as pd
and df
is our dataframe
pd.to_datetime(df['date'], unit='s')
works for me.
\
does the job. @Guillaume's answer and @George's comment clearly answer this question. Here I explains why The backslash has to be the very last character before the end of line character.
Consider this command:
mysql -uroot \ -hlocalhost
If there is a space after \
, the line continuation will not work. The reason is that \
removes the special meaning for the next character which is a space not the invisible line feed character. The line feed character is after the space not \
in this example.
join(',', array_map(function (array $tag) { return $tag['tag_name']; }, $array))
This may also work:
SELECT
COUNT(DISTINCT T.tag) as DistinctTag,
COUNT(DISTINCT T2.tag) as DistinctPositiveTag
FROM Table T
LEFT JOIN Table T2 ON T.tag = T2.tag AND T.entryID = T2.entryID AND T2.entryID > 0
You need the entryID condition in the left join rather than in a where clause in order to make sure that any items that only have a entryID of 0 get properly counted in the first DISTINCT.
Check your build types of each project under project properties - I bet one or the other will be set to build against .NET XX - Client Profile
.
With inconsistent versions, specifically with one being Client Profile
and the other not, then it works at design time but fails at compile time. A real gotcha.
There is something funny going on in Visual Studio 2010 for me, which keeps setting projects seemingly randomly to Client Profile
, sometimes when I create a project, and sometimes a few days later. Probably some keyboard shortcut I'm accidentally hitting...
I just want to share what I did in Javascript. My idea is to have search directions; in grid it could be 8 directions, but search should be bi-directional so 8 / 2 = 4 directions. When a player does its move, the search starts from the location. It searches 4 different bi-directions until its value is different from the player's stone(O or X).
Per a bi-direction search, two values can be added but need to subtract one because starting point was duplicated.
getWin(x,y,value,searchvector) {
if (arguments.length==2) {
var checkTurn = this.state.squares[y][x];
var searchdirections = [[-1,-1],[0,-1],[1,-1],[-1,0]];
return searchdirections.reduce((maxinrow,searchdirection)=>Math.max(this.getWin(x,y,checkTurn,searchdirection)+this.getWin(x,y,checkTurn,[-searchdirection[0],-searchdirection[1]]),maxinrow),0);
} else {
if (this.state.squares[y][x]===value) {
var result = 1;
if (
x+searchvector[0] >= 0 && x+searchvector[0] < 3 &&
y+searchvector[1] >= 0 && y+searchvector[1] < 3
) result += this.getWin(x+searchvector[0],y+searchvector[1],value,searchvector);
return result;
} else {
return 0;
}
}
}
This function can be used with two parameters (x,y), which are coordinates of the last move. In initial execution, it calls four bi-direction searches recursively with 4 parameters. All results are returned as lengths and the function finally picks the maximum length among 4 search bi-directions.
class Square extends React.Component {
constructor(props) {
super(props);
this.state = {value:null};
}
render() {
return (
<button className="square" onClick={() => this.props.onClick()}>
{this.props.value}
</button>
);
}
}
class Board extends React.Component {
renderSquare(x,y) {
return <Square value={this.state.squares[y][x]} onClick={() => this.handleClick(x,y)} />;
}
handleClick(x,y) {
const squares = JSON.parse(JSON.stringify(this.state.squares));
if (!squares[y][x] && !this.state.winner) {
squares[y][x] = this.setTurn();
this.setState({squares: squares},()=>{
console.log(`Max in a row made by last move(${squares[y][x]}): ${this.getWin(x,y)-1}`);
if (this.getWin(x,y)==4) this.setState({winner:squares[y][x]});
});
}
}
setTurn() {
var prevTurn = this.state.turn;
this.setState({turn:prevTurn == 'X' ? 'O':'X'});
return prevTurn;
}
getWin(x,y,value,searchvector) {
if (arguments.length==2) {
var checkTurn = this.state.squares[y][x];
var searchdirections = [[-1,-1],[0,-1],[1,-1],[-1,0]];
return searchdirections.reduce((maxinrow,searchdirection)=>Math.max(this.getWin(x,y,checkTurn,searchdirection)+this.getWin(x,y,checkTurn,[-searchdirection[0],-searchdirection[1]]),maxinrow),0);
} else {
if (this.state.squares[y][x]===value) {
var result = 1;
if (
x+searchvector[0] >= 0 && x+searchvector[0] < 3 &&
y+searchvector[1] >= 0 && y+searchvector[1] < 3
) result += this.getWin(x+searchvector[0],y+searchvector[1],value,searchvector);
return result;
} else {
return 0;
}
}
}
constructor(props) {
super(props);
this.state = {
squares: Array(3).fill(Array(3).fill(null)),
turn: 'X',
winner: null
};
}
render() {
const status = !this.state.winner?`Next player: ${this.state.turn}`:`${this.state.winner} won!`;
return (
<div>
<div className="status">{status}</div>
<div className="board-row">
{this.renderSquare(0,0)}
{this.renderSquare(0,1)}
{this.renderSquare(0,2)}
</div>
<div className="board-row">
{this.renderSquare(1,0)}
{this.renderSquare(1,1)}
{this.renderSquare(1,2)}
</div>
<div className="board-row">
{this.renderSquare(2,0)}
{this.renderSquare(2,1)}
{this.renderSquare(2,2)}
</div>
</div>
);
}
}
class Game extends React.Component {
render() {
return (
<div className="game">
<div className="game-board">
<Board />
</div>
<div className="game-info">
<div>{/* status */}</div>
<ol>{/* TODO */}</ol>
</div>
</div>
);
}
}
// ========================================
ReactDOM.render(
<Game />,
document.getElementById('root')
);
_x000D_
body {
font: 14px "Century Gothic", Futura, sans-serif;
margin: 20px;
}
ol, ul {
padding-left: 30px;
}
.board-row:after {
clear: both;
content: "";
display: table;
}
.status {
margin-bottom: 10px;
}
.square {
background: #fff;
border: 1px solid #999;
float: left;
font-size: 24px;
font-weight: bold;
line-height: 34px;
height: 34px;
margin-right: -1px;
margin-top: -1px;
padding: 0;
text-align: center;
width: 34px;
}
.square:focus {
outline: none;
}
.kbd-navigation .square:focus {
background: #ddd;
}
.game {
display: flex;
flex-direction: row;
}
.game-info {
margin-left: 20px;
}
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
<div id="errors" style="
background: #c00;
color: #fff;
display: none;
margin: -20px -20px 20px;
padding: 20px;
white-space: pre-wrap;
"></div>
<div id="root"></div>
<script>
window.addEventListener('mousedown', function(e) {
document.body.classList.add('mouse-navigation');
document.body.classList.remove('kbd-navigation');
});
window.addEventListener('keydown', function(e) {
if (e.keyCode === 9) {
document.body.classList.add('kbd-navigation');
document.body.classList.remove('mouse-navigation');
}
});
window.addEventListener('click', function(e) {
if (e.target.tagName === 'A' && e.target.getAttribute('href') === '#') {
e.preventDefault();
}
});
window.onerror = function(message, source, line, col, error) {
var text = error ? error.stack || error : message + ' (at ' + source + ':' + line + ':' + col + ')';
errors.textContent += text + '\n';
errors.style.display = '';
};
console.error = (function(old) {
return function error() {
errors.textContent += Array.prototype.slice.call(arguments).join(' ') + '\n';
errors.style.display = '';
old.apply(this, arguments);
}
})(console.error);
</script>
_x000D_
Try this, it is updating the current location, and it works fine.
public void onLocationChanged(@NonNull Location location) {
//here we update the location on the map
LatLng myActualLocation = new LatLng(location.getLatitude(), location.getLongitude());
if (markerName!=null){ // marker name is declared as a gloval variable.
markerName.remove();
}
markerName = mMap.addMarker(new MarkerOptions().position(myActualLocation).title("Marker Miami").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));
// mMap.addMarker(new MarkerOptions().position(myActualLocation).title("Marker Miami").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE)));
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(myActualLocation,18));
}
As many suggested removing the <Target>
tag may make it compile-able. Yet, beware of the fact that it has a side effect when you do it for test projects.
I got error related to MSTest.TestAdapter
nuget package while compiling. Resolved that issue by removing <Target>
tag. Though it made build successful, test methods became non discover-able. Test explorer won't list down the test methods in that project and Run Test or Debug Test won't work as well.
I encountered this while using Visual Studio 2017
and .Net framework 4.7
, it can very well happen in other versions
The script package does exactly what you're looking for: https://atom.io/packages/script
The package's documentation also contains the key mappings, which you can easily customize.
My Attempt ( JsFiddle)
Javascript
$(document).ready(function () {
$('#buttons input[type=button]').on('click', function () {
var qty = $(this).data('quantity');
var price = $('#totalPrice').text();
$('#count').val(price * qty);
});
});
Html
Product price:$500
<br>Total price: $<span id='totalPrice'>500</span>
<br>
<div id='buttons'>
<input id='qty2' type="button" data-quantity='2' value="2
Qty">
<input id='qty2' type="button" class="mnozstvi_sleva" data-quantity='4' value="4
Qty">
</div>
<br>Total
<input type="text" id="count" value="1">
I had to get csv
files that were in subdirectories, therefore, using the response from tchlpr I modified it to work best for my use case:
import os
import glob
os.chdir( '/path/to/main/dir' )
result = glob.glob( '*/**.csv' )
print( result )
I would recommend using a function, which accepts the element id and an object containing the CSS properties, to handle this. This way you write multiple styles at once and use standard CSS property syntax.
//function to handle multiple styles
function setStyle(elId, propertyObject) {
var el = document.getElementById(elId);
for (var property in propertyObject) {
el.style[property] = propertyObject[property];
}
}
setStyle('xyz', {'padding-top': '10px'});
Better still you could store the styles in a variable, which will make for much easier property management e.g.
var xyzStyles = {'padding-top':'10px'}
setStyle('xyz', xyzStyles);
Hope that helps
As stated by the other answers, you are adding the same array of rows to each column. To create a multidimensional array you must use a loop
var NumColumns = 27
var NumRows = 52
var array = Array<Array<Double>>()
for column in 0..NumColumns {
array.append(Array(count:NumRows, repeatedValue:Double()))
}
if you want to use gitk:
gitk master..branch-X
it has a nice old school GUi
I find myself forgetting how to do this every time as well so I just wrap the two one-liners that I need in a little class:
public class Utility
{
/// <summary>
/// Takes the full name of a resource and loads it in to a stream.
/// </summary>
/// <param name="resourceName">Assuming an embedded resource is a file
/// called info.png and is located in a folder called Resources, it
/// will be compiled in to the assembly with this fully qualified
/// name: Full.Assembly.Name.Resources.info.png. That is the string
/// that you should pass to this method.</param>
/// <returns></returns>
public static Stream GetEmbeddedResourceStream(string resourceName)
{
return Assembly.GetExecutingAssembly().GetManifestResourceStream(resourceName);
}
/// <summary>
/// Get the list of all emdedded resources in the assembly.
/// </summary>
/// <returns>An array of fully qualified resource names</returns>
public static string[] GetEmbeddedResourceNames()
{
return Assembly.GetExecutingAssembly().GetManifestResourceNames();
}
}
Yeah. Try this.. lazy evaluation should prohibit the second part of the condition from evaluating when the first part is false/null:
var someval = document.getElementById('something')
if (someval && someval.value <> '') {
To attempt command line arguments directly is not possible.
One alternative might be environment variables (https://superuser.com/questions/728951/systemd-giving-my-service-multiple-arguments).
This is where I found the answer: http://www.freedesktop.org/software/systemd/man/systemctl.html
so sudo systemctl restart myprog -v
-- systemctl will think you're trying to set one of its flags, not myprog's flag.
sudo systemctl restart myprog someotheroption
-- systemctl will restart myprog and the someotheroption service, if it exists.
i made this custom function that will convert the line to vector
#include <iostream>
#include <vector>
#include <ctime>
#include <string>
using namespace std;
int main(){
string line;
getline(cin, line);
int len = line.length();
vector<string> subArray;
for (int j = 0, k = 0; j < len; j++) {
if (line[j] == ' ') {
string ch = line.substr(k, j - k);
k = j+1;
subArray.push_back(ch);
}
if (j == len - 1) {
string ch = line.substr(k, j - k+1);
subArray.push_back(ch);
}
}
return 0;
}
I know this is very old and possibly talking about an older version of Visual studio and so this might not have been an option before but anyway, my way would be when at a breakpoint use the locals window to see all current variable values ( Debug >> Windows >> Locals )
As per this PPI calculation tool, Google Nexus 10 has a display density of about 300 DPI...
However, Android documentation states that:
ldpi : ~120dpi mdpi : ~160dpi hdpi : ~240dpi xhdpi : ~320dpi xxhdpi is not specified.
I think we just let Android OS scale up xhdpi resources...
To check for null values you could use _.isNull
from official documentation
isNull_.isNull(object)
Returns true if the value of object is null.
_.isNull(null);
=> true
_.isNull(undefined);
=> false
Follow this:
Automator.app
Application
Show library
in the toolbar (if hidden)Run shell script
(from the Actions/Utilities
)save somewhere (for example you can make an Applications
folder in your HOME, you will get an your_name.app
)
go to System Preferences
-> Accounts
-> Login items
EDIT:
I've recently earned a "Good answer" badge for this answer. While my solution is simple and working, the cleanest way to run any program or shell script at login time is described in @trisweb's answer, unless, you want interactivity.
With automator solution you can do things like next:
so, asking to run a script or quit the app, asking passwords, running other automator workflows at login time, conditionally run applications at login time and so on...
in swift 4 to convert to url use URL
let fileUrl = URL.init(fileURLWithPath: filePath)
or
let fileUrl = URL(fileURLWithPath: filePath)
Simply push this branch to a different branch name
git push -u origin localBranch:remoteBranch
You can use the setTimeout
or setInterval
functions.
If you use Spring Boot, you can also enable a “debug” mode by starting your application with a --debug flag.
java -jar myapp.jar --debug
You can also specify debug=true in your application.properties.
When the debug mode is enabled, a selection of core loggers (embedded container, Hibernate, and Spring Boot) are configured to output more information. Enabling the debug mode does not configure your application to log all messages with DEBUG level.
Alternatively, you can enable a “trace” mode by starting your application with a --trace flag (or trace=true in your application.properties). Doing so enables trace logging for a selection of core loggers (embedded container, Hibernate schema generation, and the whole Spring portfolio).
https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-logging.html
The safest way would be bitwise OR ing your double with 0. Look at this XORing two doubles in Java
Basically you should do if ((Double.doubleToRawLongBits(foo.x) | 0 ) )
(if it is really 0)
If you don't want to duplicate code, and like me you just want to show stats, in your view model, you could just pass in the models you want to get data from like so:
public class GameViewModel
{
public virtual Ship Ship { get; set; }
public virtual GamePlayer GamePlayer { get; set; }
}
Then, in your controller just run your queries on the respective models, pass them to the view model and return it, example:
GameViewModel PlayerStats = new GameViewModel();
GamePlayer currentPlayer = (from c in db.GamePlayer [more queries]).FirstOrDefault();
[code to check if results]
//pass current player into custom view model
PlayerStats.GamePlayer = currentPlayer;
Like I said, you should only really do this if you want to display stats from the relevant tables, and there's no other part of the CRUD process happening, for security reasons other people have mentioned above.
To check if variable is null or empty use this:
IF LEN(ISNULL(@var, '')) = 0
-- Is empty or NULL
ELSE
-- Is not empty and is not NULL
<button
class="dropdown"
@click.prevent="toggle"
ref="toggle"
:class="{'is-active': isActiveEl}"
>
Click me
</button>
data() {
return {
isActiveEl: false
}
},
created() {
window.addEventListener('click', this.close);
},
beforeDestroy() {
window.removeEventListener('click', this.close);
},
methods: {
toggle: function() {
this.isActiveEl = !this.isActiveEl;
},
close(e) {
if (!this.$refs.toggle.contains(e.target)) {
this.isActiveEl = false;
}
},
},
A simple off the shelf pretty printer in Go. One can compile it to a binary through:
go build -o jsonformat jsonformat.go
It reads from standard input, writes to standard output and allow to set indentation:
package main
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
)
func main() {
indent := flag.String("indent", " ", "indentation string/character for formatter")
flag.Parse()
src, err := ioutil.ReadAll(os.Stdin)
if err != nil {
fmt.Fprintf(os.Stderr, "problem reading: %s", err)
os.Exit(1)
}
dst := &bytes.Buffer{}
if err := json.Indent(dst, src, "", *indent); err != nil {
fmt.Fprintf(os.Stderr, "problem formatting: %s", err)
os.Exit(1)
}
if _, err = dst.WriteTo(os.Stdout); err != nil {
fmt.Fprintf(os.Stderr, "problem writing: %s", err)
os.Exit(1)
}
}
It allows to run a bash commands like:
cat myfile | jsonformat | grep "key"
we can change the icon of markers, i did it on right click event. Lets see if it works for you...
// Create a Marker
var marker = new google.maps.Marker({
position: location,
map: map,
title:'Sample Tool Tip'
});
// Set Icon on any event
google.maps.event.addListener(marker, "rightclick", function() {
marker.setIcon('blank.png'); // set image path here...
});
Essentially random access file wraps input and output streams in order to manage the random access. You don't open and close a file, you open and close streams to a file.
Instead of using ">" to redirect like this:
java Foo > log
use ">>" to append normal "stdout" output to a new or existing file:
java Foo >> log
However, if you also want to capture "stderr" errors (such as why the Java program couldn't be started), you should also use the "2>&1" tag which redirects "stderr" (the "2") to "stdout" (the "1"). For example:
java Foo >> log 2>&1
Did you try setting the style:
input {
text-align:right;
}
Just tested, this works fine (in FF3 at least):
<html>
<head>
<title>Blah</title>
<style type="text/css">
input { text-align:right; }
</style>
</head>
<body>
<input type="text" value="2">
</body>
</html>
You'll probably want to throw a class on these inputs, and use that class as the selector. I would shy away from "rightAligned" or something like that. In a class name, you want to describe what the element's function is, not how it should be rendered. "numeric" might be good, or perhaps the business function of the text boxes.
Extending String native prototype:
if (!String.prototype.contains) {
Object.defineProperty(String.prototype, 'contains', {
value(patterns) {
if (!Array.isArray(patterns)) {
return false;
}
let value = 0;
for (let i = 0; i < patterns.length; i++) {
const pattern = patterns[i];
value = value + this.includes(pattern);
}
return (value === 1);
}
});
}
Allowing you to do things like:
console.log('Hi, hope you like this option'.toLowerCase().contains(["hello", "hi", "howdy"])); // True
you can use xmlDoc.InnerXml
property to get xml in string
This format works, but it doesn't seem to be an official way of doing so
http://maps.google.com/maps?q=loc:36.26577,-92.54324
Also you may want to take a look at this. They have a few answers and seem to indicate that this is the new method:
http://maps.google.com/maps?&z=10&q=36.26577+-92.54324&ll=36.26577+-92.54324
We can append or prepend two lists or list&array
Append:
var l = List(1,2,3)
l = l :+ 4
Result : 1 2 3 4
var ar = Array(4, 5, 6)
for(x <- ar)
{ l = l :+ x }
l.foreach(println)
Result:1 2 3 4 5 6
Prepending:
var l = List[Int]()
for(x <- ar)
{ l= x :: l } //prepending
l.foreach(println)
Result:6 5 4 1 2 3
__repr__
is used by the standalone Python interpreter to display a class in printable format. Example:
~> python3.5
Python 3.5.1 (v3.5.1:37a07cee5969, Dec 5 2015, 21:12:44)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class StackOverflowDemo:
... def __init__(self):
... pass
... def __repr__(self):
... return '<StackOverflow demo object __repr__>'
...
>>> demo = StackOverflowDemo()
>>> demo
<StackOverflow demo object __repr__>
In cases where a __str__
method is not defined in the class, it will call the __repr__
function in an attempt to create a printable representation.
>>> str(demo)
'<StackOverflow demo object __repr__>'
Additionally, print()
ing the class will call __str__
by default.
Documentation, if you please
project properities -> configuration properities -> general -> charater set
UNSIGNED
only stores positive numbers (or zero). On the other hand, signed can store negative numbers (i.e., may have a negative sign).
Here's a table of the ranges of values each INTEGER
type can store:
Source: http://dev.mysql.com/doc/refman/5.6/en/integer-types.html
UNSIGNED
ranges from 0
to n
, while signed ranges from about -n/2
to n/2
.
In this case, you have an AUTO_INCREMENT
ID column, so you would not have negatives. Thus, use UNSIGNED
. If you do not use UNSIGNED
for the AUTO_INCREMENT
column, your maximum possible value will be half as high (and the negative half of the value range would go unused).
if you just need it for db-related stuff, some OR Mappers (e.g. NHibernate) support transactinos out of the box per default.
LinkedHashSet will do the trick.
String[] arr2 = {"5","1","2","3","3","4","1","2"};
Set<String> set = new LinkedHashSet<String>(Arrays.asList(arr2));
for(String s1 : set)
System.out.println(s1);
System.out.println( "------------------------" );
String[] arr3 = set.toArray(new String[0]);
for(int i = 0; i < arr3.length; i++)
System.out.println(arr3[i].toString());
//output: 5,1,2,3,4
Add permission in AndroidManifest.xml:
<uses-permission android:name="android.permission.WAKE_LOCK" />
Then add code in my.xml:
android:keepScreenOn="true"
in this case will never turn off the page! You can read more this
Even though pointers and references are implemented in much the same way "under-the-hood," the compiler treats them differently, resulting in all the differences described above.
A recent article I wrote that goes into much greater detail than I can show here and should be very helpful for this question, especially about how things happen in memory:
Arrays, Pointers and References Under the Hood In-Depth Article
<=
is just like you would "read" it: 'less than or equals'. So it's a mathematical operator, in the list of <
(is less than?), >
(is greater than?), ==
(equals?), !=
(is not equal?), <=
(is less than or equal?), and >=
(is greater than or equal?).
This must not be confused with =>
which is kind of a double right-hand arrow, used to separate the argument list from the body of a function and to separate the testing condition in pattern matching (a case
block) from the body executed when a match occurs. You can see example of this in my previous two answers. First, the function use:
coll.map(tup => tup._2.reverse)
which is already abbreviated as the types are omitted. The follow function would be
// function arguments function body
(tup: Tuple2[Int, String]) => tup._2.reverse
and the pattern matching use:
def extract2(l: List[Int]) = l match {
// if l matches Nil return "empty"
case Nil => "empty"
// etc.
case ::(head, Nil) => "exactly one element (" + head + ")"
// etc.
case ::(head, tail) => "more than one element"
}
With Java 9, you are able to do the following to create an immutable List
:
List<Integer> immutableList = List.of(1, 2, 3, 4, 5);
List<Integer> mutableList = new ArrayList<>(immutableList);
The .btn classes are designed for , or elements (though some browsers may apply a slightly different rendering).
If you’re using .btn classes on elements that are used to trigger functionality ex. collapsing content, these links should be given a role="button" to adequately communicate their meaning to assistive technologies such as screen readers. I hope this help.
I'm not 100% entirely sure how you want to "grab" the values. But if you want to iterate over the checkboxes you can use .each like so:
("input[@name='user_group[]']").each( function() {
alert($(this).val());
});
Of course a better selector is available:
$(':checkbox')
Continued discussion & other solutions covered at How to sort an (associative) array by value? with the best solution (for my case) being by saml (quoted below).
Arrays can only have numeric indexes. You'd need to rewrite this as either an Object, or an Array of Objects.
var status = new Array();
status.push({name: 'BOB', val: 10});
status.push({name: 'TOM', val: 3});
status.push({name: 'ROB', val: 22});
status.push({name: 'JON', val: 7});
If you like the status.push
method, you can sort it with:
status.sort(function(a,b) {
return a.val - b.val;
});
You asked to be able to run something like npm start 8080
. This is possible without needing to modify script.js
or configuration files as follows.
For example, in your "scripts"
JSON value, include--
"start": "node ./script.js server $PORT"
And then from the command-line:
$ PORT=8080 npm start
I have confirmed that this works using bash and npm 1.4.23. Note that this work-around does not require GitHub npm issue #3494 to be resolved.
So, your input is 'dan|warrior|54' and you want "warrior". You do this like so:
>>> dan = 'dan|warrior|54'
>>> dan.split('|')[1]
"warrior"
As mentioned already, Blazemongers solution is failing to remove quotes (e.g. returned by Firefox). Since I find Rob Ws solution to be rather complicated, adding my 2 cents here:
$('#div1').click (function(){
url = $(this).css('background-image').replace(/^url\(['"]?/,'').replace(/['"]?\)$/,'');
alert(url);
})
select * from information_schema.TRIGGERS;
TortoiseSVN has this capability built in, if you're willing to use a non-command-line solution. Just right click on the top level folder and select Add...
I recently had this problem and think these steps are easy to follow if any prior solution or link is missing detail.
How to create a .jar
using IntelliJ IDEA 14.1.5:
One statement can be written as such:
someValues.forEach(x => console.log(x));
or multiple statements can be enclosed in {}
like this:
someValues.forEach(x => { let a = 2 + x; console.log(a); });
Try this, it also handles the single quote which is failed to parse by JSON.parse() method and also supports the UTF-8 character code.
parseJSON = function() {
var data = {};
var reader = new FileReader();
reader.onload = function() {
try {
data = JSON.parse(reader.result.replace(/'/g, "\""));
} catch (ex) {
console.log('error' + ex);
}
};
reader.readAsText(fileSelector_test[0].files[0], 'utf-8');
}
These helped me a lot: I wanted to save values from my gridview, and it was reloading my gridview /overriding my new values, as i have IsPostBack inside my PageLoad.
if (HttpContext.Current.Request["MYCLICKEDBUTTONID"] == null)
{
//Do not reload the gridview.
}
else
{
reload my gridview.
}
SOURCE: http://bytes.com/topic/asp-net/answers/312809-please-help-how-identify-button-clicked
To bypass the 'specify a file name or directory name on the target (F = file, D = directory)?' prompt with xcopy, you can do the following...
echo f | xcopy /f /y srcfile destfile
or for those of us just copying large substructures/folders:
use /i which specifies destination must be a directory if copying more than one file
Preface: This comment is intended to address the answer provided by okutane, but because of SO's silly reputation system, I can not post it where it belongs.
Your assertion that one is slower than the other because of the method calls isn't correct. One is slower than the other because of more complicated bounds-checking algorithms. You can easily verify this by looking, not at the IL, but at the compiled assembly. For example, on my 4.5 install, accessing an element (via pointer in edx) stored in a two-dimensional array pointed to by ecx with indexes stored in eax and edx looks like so:
sub eax,[ecx+10]
cmp eax,[ecx+08]
jae oops //jump to throw out of bounds exception
sub edx,[ecx+14]
cmp edx,[ecx+0C]
jae oops //jump to throw out of bounds exception
imul eax,[ecx+0C]
add eax,edx
lea edx,[ecx+eax*4+18]
Here, you can see that there's no overhead from method calls. The bounds checking is just very convoluted thanks to the possibility of non-zero indexes, which is a functionality not on offer with jagged arrays. If we remove the sub,cmp,and jmps for the non-zero cases, the code pretty much resolves to (x*y_max+y)*sizeof(ptr)+sizeof(array_header)
. This calculation is about as fast (one multiply could be replaced by a shift, since that's the whole reason we choose bytes to be sized as powers of two bits) as anything else for random access to an element.
Another complication is that there are plenty of cases where a modern compiler will optimize away the nested bounds-checking for element access while iterating over a single-dimension array. The result is code that basically just advances an index pointer over the contiguous memory of the array. Naive iteration over multi-dimensional arrays generally involves an extra layer of nested logic, so a compiler is less likely to optimize the operation. So, even though the bounds-checking overhead of accessing a single element amortizes out to constant runtime with respect to array dimensions and sizes, a simple test-case to measure the difference may take many times longer to execute.
The documentation is misleading.
I have the following code running in production
DECLARE @table TABLE (UserID varchar(100))
DECLARE @sql varchar(1000)
SET @sql = 'spSelUserIDList'
/* Will also work
SET @sql = 'SELECT UserID FROM UserTable'
*/
INSERT INTO @table
EXEC(@sql)
SELECT * FROM @table
Alternatively you can grant the user DROP_ANY_TABLE
privilege if need be and the procedure will run as is without the need for any alteration. Dangerous maybe but depends what you're doing :)
Look at the methods in the java.io.File class:
File file = new File("yourfileName");
String path = file.getAbsolutePath();
In my windows 10 Enterprise edition os this code works fine: (suppose for environment namely testenv)
conda env remove --name testenv
For this to work in Chrome the value must not have another pair of quotes.
It only works, for example, like this:
$('a[data-customerID=22]');
I was pretty sure that you need to specify the NOLOCK
for each JOIN
in the query. But my experience was limited to SQL Server 2005.
When I looked up MSDN just to confirm, I couldn't find anything definite. The below statements do seem to make me think, that for 2008, your two statements above are equivalent though for 2005 it is not the case:
[SQL Server 2008 R2]
All lock hints are propagated to all the tables and views that are accessed by the query plan, including tables and views referenced in a view. Also, SQL Server performs the corresponding lock consistency checks.
[SQL Server 2005]
In SQL Server 2005, all lock hints are propagated to all the tables and views that are referenced in a view. Also, SQL Server performs the corresponding lock consistency checks.
Additionally, point to note - and this applies to both 2005 and 2008:
The table hints are ignored if the table is not accessed by the query plan. This may be caused by the optimizer choosing not to access the table at all, or because an indexed view is accessed instead. In the latter case, accessing an indexed view can be prevented by using the
OPTION (EXPAND VIEWS)
query hint.
The Problem is the "as string" in your function. Replace it with "as double" or "as long" to make it work. This way it even works if the last row is bigger than the "large number" proposed in the accepted answer.
So this should work
Function ultimaFilaBlanco(col As double) As Long
Dim lastRow As Long
With ActiveSheet
lastRow = ActiveSheet.Cells(ActiveSheet.Rows.Count, col).End(xlUp).row
End With
ultimaFilaBlanco = lastRow
End Function
Firstly: The >>>
code you see in python examples is a way to indicate that it is Python code. It's used to separate Python code from output. Like this:
>>> 4+5
9
Here we see that the line that starts with >>>
is the Python code, and 9 is what it results in. This is exactly how it looks if you start a Python interpreter, which is why it's done like that.
You never enter the >>>
part into a .py
file.
That takes care of your syntax error.
Secondly, ctypes is just one of several ways of wrapping Python libraries. Other ways are SWIG, which will look at your Python library and generate a Python C extension module that exposes the C API. Another way is to use Cython.
They all have benefits and drawbacks.
SWIG will only expose your C API to Python. That means you don't get any objects or anything, you'll have to make a separate Python file doing that. It is however common to have a module called say "wowza" and a SWIG module called "_wowza" that is the wrapper around the C API. This is a nice and easy way of doing things.
Cython generates a C-Extension file. It has the benefit that all of the Python code you write is made into C, so the objects you write are also in C, which can be a performance improvement. But you'll have to learn how it interfaces with C so it's a little bit extra work to learn how to use it.
ctypes have the benefit that there is no C-code to compile, so it's very nice to use for wrapping standard libraries written by someone else, and already exists in binary versions for Windows and OS X.
My guess is that you are using MySQL where the +
operator does addition, along with silent conversion of the values to numbers. If a value does not start with a digit, then the converted value is 0
.
So try this:
select concat(column1, column2)
Two ways to add a space:
select concat(column1, ' ', column2)
select concat_ws(' ', column1, column2)
in case someone got stuck with this and none of the answers above worked, below is what worked for me. Hope it helps.
var oldString = "\\r|\\n";
// None of these worked for me
// var newString = oldString(@"\\", @"\");
// var newString = oldString.Replace("\\\\", "\\");
// var newString = oldString.Replace("\\u5b89", "\u5b89");
// var newString = Regex.Replace(oldString , @"\\", @"\");
// This is what worked
var newString = Regex.Unescape(oldString);
// newString is now "\r|\n"
please don't try with the old cv module, use cv2:
import cv2
cv2.rectangle(img, (x1, y1), (x2, y2), (255,0,0), 2)
x1,y1 ------
| |
| |
| |
--------x2,y2
[edit] to append the follow-up questions below:
cv2.imwrite("my.png",img)
cv2.imshow("lalala", img)
k = cv2.waitKey(0) # 0==wait forever
Instead of trying to serve the node modules folder, you can also use Gulp to copy what you need to wwwroot.
https://docs.asp.net/en/latest/client-side/using-gulp.html
This might help too
Visual Studio 2015 ASP.NET 5, Gulp task not copying files from node_modules
i don't see the main function.
please make sure that it has main function.
example :
int main(int argc, TCHAR *argv[]){
}
hope that it works well. :)
Edited Jarno Argillanders answer:
How to fit Image with your Width and Height:
1) Initialize ImageView and set Image:
iv = (ImageView) findViewById(R.id.iv_image);
iv.setImageBitmap(image);
2) Now resize:
scaleImage(iv);
Edited scaleImage
method: (you can replace EXPECTED bounding values)
private void scaleImage(ImageView view) {
Drawable drawing = view.getDrawable();
if (drawing == null) {
return;
}
Bitmap bitmap = ((BitmapDrawable) drawing).getBitmap();
int width = bitmap.getWidth();
int height = bitmap.getHeight();
int xBounding = ((View) view.getParent()).getWidth();//EXPECTED WIDTH
int yBounding = ((View) view.getParent()).getHeight();//EXPECTED HEIGHT
float xScale = ((float) xBounding) / width;
float yScale = ((float) yBounding) / height;
Matrix matrix = new Matrix();
matrix.postScale(xScale, yScale);
Bitmap scaledBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
width = scaledBitmap.getWidth();
height = scaledBitmap.getHeight();
BitmapDrawable result = new BitmapDrawable(context.getResources(), scaledBitmap);
view.setImageDrawable(result);
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) view.getLayoutParams();
params.width = width;
params.height = height;
view.setLayoutParams(params);
}
And .xml:
<ImageView
android:id="@+id/iv_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal" />
Assuming that ID
is an identity column:
INSERT INTO TheTable(HospitalID, Email, Description)
SELECT 32, Email, Description FROM TheTable
WHERE HospitalID <> 32
Try to avoid loops with SQL. Try to think in terms of sets instead.
On the face of it, it does seem that requirements.txt
and setup.py
are silly duplicates, but it's important to understand that while the form is similar, the intended function is very different.
The goal of a package author, when specifying dependencies, is to say "wherever you install this package, these are the other packages you need, in order for this package to work."
In contrast, the deployment author (which may be the same person at a different time) has a different job, in that they say "here's the list of packages that we've gathered together and tested and that I now need to install".
The package author writes for a wide variety of scenarios, because they're putting their work out there to be used in ways they may not know about, and have no way of knowing what packages will be installed alongside their package. In order to be a good neighbor and avoid dependency version conflicts with other packages, they need to specify as wide a range of dependency versions as can possibly work. This is what install_requires
in setup.py
does.
The deployment author writes for a very different, very specific goal: a single instance of an installed application or service, installed on a particular computer. In order to precisely control a deployment, and be sure that the right packages are tested and deployed, the deployment author must specify the exact version and source-location of every package to be installed, including dependencies and dependency's dependencies. With this spec, a deployment can be repeatably applied to several machines, or tested on a test machine, and the deployment author can be confident that the same packages are deployed every time. This is what a requirements.txt
does.
So you can see that, while they both look like a big list of packages and versions, these two things have very different jobs. And it's definitely easy to mix this up and get it wrong! But the right way to think about this is that requirements.txt
is an "answer" to the "question" posed by the requirements in all the various setup.py
package files. Rather than write it by hand, it's often generated by telling pip to look at all the setup.py
files in a set of desired packages, find a set of packages that it thinks fits all the requirements, and then, after they're installed, "freeze" that list of packages into a text file (this is where the pip freeze
name comes from).
So the takeaway:
setup.py
should declare the loosest possible dependency versions that are still workable. Its job is to say what a particular package can work with.requirements.txt
is a deployment manifest that defines an entire installation job, and shouldn't be thought of as tied to any one package. Its job is to declare an exhaustive list of all the necessary packages to make a deployment work.For Can not connect to the SQL Server. The original error is: Login failed for user 'username'.
error, port requirements on MSSQL server side need to be fulfilled.
There are other ports beyond default port 1433 needed to be configured on Windows Firewall.
For any wanderer that comes across this in the future. If your application and database are on different machines and you are getting the above error especially when using TransactionScope, enable Network DTC access. Steps to do this are:
Important: Do not edit/change the user account and password in the DTC Logon account field, leave it as is, you will end up re-installing windows if you do.
I found out just now that it might be because of Fast Boot
option in Settings
> Power
When I have this option off, my application receives a this broadcast but not otherwise.
By the way, I have Android 2.3.3
on HTC Incredible S
.
Hope it helps.
In Android Studio you can find all your app signing information without any console command:
Open your project
Click on Gradle from right side panel
In Gradle projects panel open folders: Your Project -> Tasks-> Android
Now that .NET 4.5.1 is available the actual value of the key named Release in the registry needs to be checked, not just its existence. A value of 378758 means that .NET Framework 4.5.1 is installed. However, as described here this value is 378675 on Windows 8.1.