If you are using ipython in windows, then follow the steps:
A normal variable is set by simply assigning it a value; note that no whitespace is allowed around the =
:
HOME=c
An environment variable is a regular variable that has been marked for export to the environment.
export HOME
HOME=c
You can combine the assignment with the export
statement.
export HOME=c
You can easily make SSH connections using SSHLibrary. Read this post :
https://workpython.blogspot.com/2020/04/creating-ssh-connections-with-python.html
You can also use this code with support for loading error:
$("img").on('load', function() {
// do stuff on success
})
.on('error', function() {
// do stuff on smth wrong (error 404, etc.)
})
.each(function() {
if(this.complete) {
$(this).load();
} else if(this.error) {
$(this).error();
}
});
you should never do so... and I think trying it in latest browsers is useless(from what I know)... all latest browsers on the other hand, will not allow this...
some other links that you can go through, to find a workaround like getting the value serverside, but not in clientside(javascript)
Full path from file input using jQuery
How to get the file path from HTML input form in Firefox 3
mysqli_select_db()
should have 2 parameters, the connection link and the database name -
mysqli_select_db($con, 'phpcadet') or die(mysqli_error($con));
Using mysqli_error
in the die statement will tell you exactly what is wrong as opposed to a generic error message.
Here is my Java code for Selenium WebDriver. Write the following method and call it during assertion:
protected boolean isElementPresent(By by){
try{
driver.findElement(by);
return true;
}
catch(NoSuchElementException e){
return false;
}
}
One solution is to set tis widget color property to Colors.transparent. For instance:
IconButton(
icon: Image.asset("myImage.png",
color: Colors.transparent,
),
onPressed: () {},
),
Right. Better to use a function:
CREATE OR REPLACE FUNCTION yyyymm() RETURNS text
LANGUAGE 'plpgsql' AS $$
DECLARE
retval text;
m integer;
BEGIN
retval := EXTRACT(year from current_timestamp);
m := EXTRACT(month from current_timestamp);
IF m < 10 THEN retval := retval || '0'; END IF;
RETURN retval || m;
END $$;
SELECT yyyymm();
DROP TABLE foo;
CREATE TABLE foo (
key int PRIMARY KEY,
colname text DEFAULT yyyymm()
);
INSERT INTO foo (key) VALUES (0);
SELECT * FROM FOO;
This gives me
key | colname
-----+---------
0 | 200905
Make sure you run createlang plpgsql
from the Unix command line, if necessary.
readonly="readonly"
is xhtml syntax. In xhtml boolean attributes are written this way. In xhtml 'attribute minimization' (<input type="checkbox" checked>
) isn't allowed, so this is the valid way to include boolean attributes in xhtml. See this page for more.information.
If your document type is xhtml transitional or strict and you want to validate it, use readonly="readonly
otherwise readonly
is sufficient.
Extending upon Cédric Guillemette answer, after you disable the Control
:
((Control)this.tabPage).Enabled = false;
...you may then handle the TabControl
's Selecting
event as:
private void tabControl_Selecting(object sender, TabControlCancelEventArgs e)
{
e.Cancel = !((Control)e.TabPage).Enabled;
}
The error your are getting is because your-ubuntu-username is not a valid Postgres user.
You need to tell psql what database username to use
psql -U postgres
You may also need to specify the database to connect to
psql -U postgres -d <dbname>
The fork(),vfork() and clone() all call the do_fork() to do the real work, but with different parameters.
asmlinkage int sys_fork(struct pt_regs regs)
{
return do_fork(SIGCHLD, regs.esp, ®s, 0);
}
asmlinkage int sys_clone(struct pt_regs regs)
{
unsigned long clone_flags;
unsigned long newsp;
clone_flags = regs.ebx;
newsp = regs.ecx;
if (!newsp)
newsp = regs.esp;
return do_fork(clone_flags, newsp, ®s, 0);
}
asmlinkage int sys_vfork(struct pt_regs regs)
{
return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs.esp, ®s, 0);
}
#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
#define CLONE_VM 0x00000100 /* set if VM shared between processes */
SIGCHLD means the child should send this signal to its father when exit.
For fork, the child and father has the independent VM page table, but since the efficiency, fork will not really copy any pages, it just set all the writeable pages to readonly for child process. So when child process want to write something on that page, an page exception happen and kernel will alloc a new page cloned from the old page with write permission. That's called "copy on write".
For vfork, the virtual memory is exactly by child and father---just because of that, father and child can't be awake concurrently since they will influence each other. So the father will sleep at the end of "do_fork()" and awake when child call exit() or execve() since then it will own new page table. Here is the code(in do_fork()) that the father sleep.
if ((clone_flags & CLONE_VFORK) && (retval > 0))
down(&sem);
return retval;
Here is the code(in mm_release() called by exit() and execve()) which awake the father.
up(tsk->p_opptr->vfork_sem);
For sys_clone(), it is more flexible since you can input any clone_flags to it. So pthread_create() call this system call with many clone_flags:
int clone_flags = (CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGNAL | CLONE_SETTLS | CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID | CLONE_SYSVSEM);
Summary: the fork(),vfork() and clone() will create child processes with different mount of sharing resource with the father process. We also can say the vfork() and clone() can create threads(actually they are processes since they have independent task_struct) since they share the VM page table with father process.
bit
. It stores 1 or 0 (or NULL
).Alternatively, you could use the strings 'true'
and 'false'
in place of 1 or 0, like so-
declare @b1 bit = 'false'
print @b1 --prints 0
declare @b2 bit = 'true'
print @b2 --prints 1
Also, any non 0 value (either positive or negative) evaluates to (or converts to in some cases) a 1.
declare @i int = -42
print cast(@i as bit) --will print 1, because @i is not 0
Note that SQL Server uses three valued logic (true
, false
, and NULL
), since NULL
is a possible value of the bit
data type. Here are the relevant truth tables -
More information on three valued logic-
Example of three valued logic in SQL Server
http://www.firstsql.com/idefend3.htm
https://www.simple-talk.com/sql/learn-sql-server/sql-and-the-snare-of-three-valued-logic/
Please set the request Content Type before you read the response stream;
request.ContentType = "text/xml";
There's another option not cited here which is included in the GNU Make book by Stallman and McGrath (see http://www.chemie.fu-berlin.de/chemnet/use/info/make/make_7.html). It provides the example:
archive.a: ...
ifneq (,$(findstring t,$(MAKEFLAGS)))
+touch archive.a
+ranlib -t archive.a
else
ranlib archive.a
endif
It involves verifying if a given parameter appears in MAKEFLAGS
. For example .. suppose that you're studying about threads in c++11 and you've divided your study across multiple files (class01
, ... , classNM
) and you want to: compile then all and run individually or compile one at a time and run it if a flag is specified (-r
, for instance). So, you could come up with the following Makefile
:
CXX=clang++-3.5
CXXFLAGS = -Wall -Werror -std=c++11
LDLIBS = -lpthread
SOURCES = class01 class02 class03
%: %.cxx
$(CXX) $(CXXFLAGS) -o [email protected] $^ $(LDLIBS)
ifneq (,$(findstring r, $(MAKEFLAGS)))
./[email protected]
endif
all: $(SOURCES)
.PHONY: clean
clean:
find . -name "*.out" -delete
Having that, you'd:
make -r class02
; make
or make all
;make -r
(suppose that all of them contain some certain kind of assert stuff and you just want to test them all)Try this (subquery):
SELECT * FROM terms WHERE id IN
(SELECT term_id FROM terms_relation WHERE taxonomy = "categ")
Or you can try this (JOIN):
SELECT t.* FROM terms AS t
INNER JOIN terms_relation AS tr
ON t.id = tr.term_id AND tr.taxonomy = "categ"
If you want to receive all fields from two tables:
SELECT t.id, t.name, t.slug, tr.description, tr.created_at, tr.updated_at
FROM terms AS t
INNER JOIN terms_relation AS tr
ON t.id = tr.term_id AND tr.taxonomy = "categ"
Check on yourCheckBox.Value
?
Try: Window -> Preferences -> Android -> LogCat. Change field "Show logcat view if ..." the value "VERBOSE". It helped me.
I had the same issue. I think it was a deadlock issue with SQL. You can just force close the SQL process from Task Manager. If that didn't fix it, just restart your computer. You don't need to drop the table and reload the data.
The calculation occurs immediately since the calculation call is bound in the template, which displays its result when quantity
changes.
Instead you could try the following approach. Change your markup to the following:
<div ng-controller="myAppController" style="text-align:center">
<p style="font-size:28px;">Enter Quantity:
<input type="text" ng-model="quantity"/>
</p>
<button ng-click="calculateQuantity()">Calculate</button>
<h2>Total Cost: Rs.{{quantityResult}}</h2>
</div>
Next, update your controller:
myAppModule.controller('myAppController', function($scope,calculateService) {
$scope.quantity=1;
$scope.quantityResult = 0;
$scope.calculateQuantity = function() {
$scope.quantityResult = calculateService.calculate($scope.quantity, 10);
};
});
Here's a JSBin example that demonstrates the above approach.
The problem with this approach is the calculated result remains visible with the old value till the button is clicked. To address this, you could hide the result whenever the quantity
changes.
This would involve updating the template to add an ng-change
on the input, and an ng-if
on the result:
<input type="text" ng-change="hideQuantityResult()" ng-model="quantity"/>
and
<h2 ng-if="showQuantityResult">Total Cost: Rs.{{quantityResult}}</h2>
In the controller add:
$scope.showQuantityResult = false;
$scope.calculateQuantity = function() {
$scope.quantityResult = calculateService.calculate($scope.quantity, 10);
$scope.showQuantityResult = true;
};
$scope.hideQuantityResult = function() {
$scope.showQuantityResult = false;
};
These updates can be seen in this JSBin demo.
Well I think the best way would be (will be?) to define 2 recordsets and use them as an intermediate between the 2 tables.
This method is particularly interesting if you plan to update tables from different databases (ie each recordset can have its own connection ...)
myenv:
python 2.7.14
pip 9.0.1
mac osx 10.9.4
mysolution:
download get-pip.py
manually from https://packaging.python.org/tutorials/installing-packages/
run python get-pip.py
refs:
https://github.com/pypa/warehouse/issues/3293#issuecomment-378468534
https://packaging.python.org/tutorials/installing-packages/
Securely Download get-pip.py [1]
Run python get-pip.py. [2] This will install or upgrade pip. Additionally, it will install setuptools and wheel if they’re not installed already.
Ensure pip, setuptools, and wheel are up to date
While pip alone is sufficient to install from pre-built binary archives, up to date copies of the setuptools and wheel projects are useful to ensure you can also install from source archives:
python -m pip install --upgrade pip setuptools wheel
JConsole has a graphical view.
You also have VisualVM and Oracle JRockit Mission Control
Try use absolute path:
exclude:path.resolve(__dirname, "node_modules")
Queues are First In First Out structures. You request is pretty vague, but I am guessing that you need only the basic functionality which usually comes out with Queue structures. You can take a look at how you can implement it here.
With regards to your missing package, it is most likely because you will need to either download or create the package yourself by following that tutorial.
Try dir /b
, for bare format.
dir /?
will show you documentation of what you can do with the dir
command. Here is the output from my Windows 7 machine:
C:\>dir /?
Displays a list of files and subdirectories in a directory.
DIR [drive:][path][filename] [/A[[:]attributes]] [/B] [/C] [/D] [/L] [/N]
[/O[[:]sortorder]] [/P] [/Q] [/R] [/S] [/T[[:]timefield]] [/W] [/X] [/4]
[drive:][path][filename]
Specifies drive, directory, and/or files to list.
/A Displays files with specified attributes.
attributes D Directories R Read-only files
H Hidden files A Files ready for archiving
S System files I Not content indexed files
L Reparse Points - Prefix meaning not
/B Uses bare format (no heading information or summary).
/C Display the thousand separator in file sizes. This is the
default. Use /-C to disable display of separator.
/D Same as wide but files are list sorted by column.
/L Uses lowercase.
/N New long list format where filenames are on the far right.
/O List by files in sorted order.
sortorder N By name (alphabetic) S By size (smallest first)
E By extension (alphabetic) D By date/time (oldest first)
G Group directories first - Prefix to reverse order
/P Pauses after each screenful of information.
/Q Display the owner of the file.
/R Display alternate data streams of the file.
/S Displays files in specified directory and all subdirectories.
/T Controls which time field displayed or used for sorting
timefield C Creation
A Last Access
W Last Written
/W Uses wide list format.
/X This displays the short names generated for non-8dot3 file
names. The format is that of /N with the short name inserted
before the long name. If no short name is present, blanks are
displayed in its place.
/4 Displays four-digit years
Switches may be preset in the DIRCMD environment variable. Override
preset switches by prefixing any switch with - (hyphen)--for example, /-W.
<?
$day1 = "2014-01-26 11:30:00";
$day1 = strtotime($day1);
$day2 = "2014-01-26 12:30:00";
$day2 = strtotime($day2);
$diffHours = round(($day2 - $day1) / 3600);
echo $diffHours;
?>
I have a reliable way to generate SQL inserts batly,and you can modify partial parameters in processing.It helps me a lot in my work, for example, copy one hundreds data to database with incompatible structure and fields count. IntellIJ DataGrip , the powerful tool i use. DG can batly receive data from WPS office or MS Excel by column or line. after copying, DG can export data as SQL inserts.
Here's where they're stored on Windows XP through Windows Server 2012 R2:
HKEY_CURRENT_USER\Environment
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
Pyjnius.
Docs: http://pyjnius.readthedocs.org/en/latest/
Github: https://github.com/kivy/pyjnius
From the github page:
A Python module to access Java classes as Python classes using JNI.
PyJNIus is a "Work In Progress".
Quick overview
>>> from jnius import autoclass >>> autoclass('java.lang.System').out.println('Hello world') Hello world >>> Stack = autoclass('java.util.Stack') >>> stack = Stack() >>> stack.push('hello') >>> stack.push('world') >>> print stack.pop() world >>> print stack.pop() hello
You need to align the text to the left of radio button using float:left
input[type="radio"]{
float:left;
}
You may use label too for more responsive output.
I would also highly recommend Adminer - http://www.adminer.org/
It is much faster than phpMyAdmin, does less funky iframe stuff, and supports both MySQL and PostgreSQL.
What you really need is to compare two objects of the same kind.
Create an NSDate out of your string date (@"2009-05-11") :
http://blog.evandavey.com/2008/12/how-to-convert-a-string-to-nsdate.html
If the current date is a string too, make it an NSDate. If its already an NSDate, leave it.
From oracle Sql developer, execute the below in sql worksheet:
create user lctest identified by lctest;
grant dba to lctest;
then right click on "Oracle connection" -> new connection, then make everything lctest from connection name to user name password. Test connection shall pass. Then after connected you will see the schema.
If you are a developer, this is what you need to do:
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
While Asif Bilal's answer is a simpler solution that doesn't involve Size Classes (which were introduced in iOS 8.) it is strongly recommended you to get used to size classes as they are the future, and you will eventually jump in anyway at some point."
You probably haven't added the layout constraints.
Select your label, tap the layout constraints button on the bottom:
On that menu add width and height (it should NOT be the same as mine) by checking their checkbox and click add constraints. Then Control-drag your label to your main view, and then when you de-click, you should have the options to center horizontally and vertically in container. Add both, and you should be set up.
For the future I would recommend Eran Harel's answer (refactoring moving new
to factory that can be mocked). But if you don't want to change the original source code, use very handy and unique feature: spies. From the documentation:
You can create spies of real objects. When you use the spy then the real methods are called (unless a method was stubbed).
Real spies should be used carefully and occasionally, for example when dealing with legacy code.
In your case you should write:
TestedClass tc = spy(new TestedClass());
LoginContext lcMock = mock(LoginContext.class);
when(tc.login(anyString(), anyString())).thenReturn(lcMock);
You need to tell MySQL which database to use:
USE database_name;
before you create a table.
In case the database does not exist, you need to create it as:
CREATE DATABASE database_name;
followed by:
USE database_name;
List<String> sids = new ArrayList<String>();
List<String> lids = new ArrayList<String>();
String query = "SELECT rlink_id, COUNT(*)"
+ "FROM dbo.Locate "
+ "GROUP BY rlink_id ";
Statement stmt = yourconnection.createStatement();
try {
ResultSet rs4 = stmt.executeQuery(query);
while (rs4.next()) {
sids.add(rs4.getString(1));
lids.add(rs4.getString(2));
}
} finally {
stmt.close();
}
String show[] = sids.toArray(sids.size());
String actuate[] = lids.toArray(lids.size());
private void SortGridGenerico< T >(
ref List< T > lista
, SortDirection sort
, string propriedadeAOrdenar)
{
if (!string.IsNullOrEmpty(propriedadeAOrdenar)
&& lista != null
&& lista.Count > 0)
{
Type t = lista[0].GetType();
if (sort == SortDirection.Ascending)
{
lista = lista.OrderBy(
a => t.InvokeMember(
propriedadeAOrdenar
, System.Reflection.BindingFlags.GetProperty
, null
, a
, null
)
).ToList();
}
else
{
lista = lista.OrderByDescending(
a => t.InvokeMember(
propriedadeAOrdenar
, System.Reflection.BindingFlags.GetProperty
, null
, a
, null
)
).ToList();
}
}
}
You can access those values with the global $_GET variable
//www.example.com/index.php?id=7
print $_GET['id']; // prints "7"
You should check all "incoming" user data - so here, that "id" is an INT. Don't use it directly in your SQL (vulnerable to SQL injections).
On Mac, head -n -1 wont work. And, I was trying to find a simple solution [ without worrying about processing time ] to solve this problem only using "head" and/or "tail" commands.
I tried the following sequence of commands and was happy that I could solve it just using "tail" command [ with the options available on Mac ]. So, if you are on Mac, and want to use only "tail" to solve this problem, you can use this command :
cat file.txt | tail -r | tail -n +2 | tail -r
1> tail -r : simply reverses the order of lines in its input
2> tail -n +2 : this prints all the lines starting from the second line in its input
Use jquery.inputmask 3.x. See demos here
Include files:
<script src="/assets/jquery.inputmask.js" type="text/javascript"></script>
<script src="/assets/jquery.inputmask.extensions.js" type="text/javascript"></script>
<script src="/assets/jquery.inputmask.numeric.extensions.js" type="text/javascript"></script>
And code as
$(selector).inputmask('decimal',
{ 'alias': 'numeric',
'groupSeparator': '.',
'autoGroup': true,
'digits': 2,
'radixPoint': ",",
'digitsOptional': false,
'allowMinus': false,
'prefix': '$ ',
'placeholder': '0'
}
);
Highlights:
No, in C++ you cannot call a constructor from a constructor. What you can do, as warren pointed out, is:
Note that in the first case, you cannot reduce code duplication by calling one constructor from another. You can of course have a separate, private/protected, method that does all the initialization, and let the constructor mainly deal with argument handling.
I'm using the same stack and was also looking for an example of file upload, but my case is simpler since I use the ModelViewSet instead of APIView. The key turned out to be the pre_save hook. I ended up using it together with the angular-file-upload module like so:
# Django
class ExperimentViewSet(ModelViewSet):
queryset = Experiment.objects.all()
serializer_class = ExperimentSerializer
def pre_save(self, obj):
obj.samplesheet = self.request.FILES.get('file')
class Experiment(Model):
notes = TextField(blank=True)
samplesheet = FileField(blank=True, default='')
user = ForeignKey(User, related_name='experiments')
class ExperimentSerializer(ModelSerializer):
class Meta:
model = Experiment
fields = ('id', 'notes', 'samplesheet', 'user')
// AngularJS
controller('UploadExperimentCtrl', function($scope, $upload) {
$scope.submit = function(files, exp) {
$upload.upload({
url: '/api/experiments/' + exp.id + '/',
method: 'PUT',
data: {user: exp.user.id},
file: files[0]
});
};
});
For me, these steps fixed the issue:
1- Running this cmd as admin:
npm install --global --production windows-build-tools
2- Then running npm rebuild
after the 1st step is completed (especially completing the python 2.7 installation, which was the main cause of the issue)
I just wrote this function that does what you want; try it out let me know if it doesn't work correctly for you:
// Test with an element.
var initElement = document.getElementsByTagName("html")[0];
var json = mapDOM(initElement, true);
console.log(json);
// Test with a string.
initElement = "<div><span>text</span>Text2</div>";
json = mapDOM(initElement, true);
console.log(json);
function mapDOM(element, json) {
var treeObject = {};
// If string convert to document Node
if (typeof element === "string") {
if (window.DOMParser) {
parser = new DOMParser();
docNode = parser.parseFromString(element,"text/xml");
} else { // Microsoft strikes again
docNode = new ActiveXObject("Microsoft.XMLDOM");
docNode.async = false;
docNode.loadXML(element);
}
element = docNode.firstChild;
}
//Recursively loop through DOM elements and assign properties to object
function treeHTML(element, object) {
object["type"] = element.nodeName;
var nodeList = element.childNodes;
if (nodeList != null) {
if (nodeList.length) {
object["content"] = [];
for (var i = 0; i < nodeList.length; i++) {
if (nodeList[i].nodeType == 3) {
object["content"].push(nodeList[i].nodeValue);
} else {
object["content"].push({});
treeHTML(nodeList[i], object["content"][object["content"].length -1]);
}
}
}
}
if (element.attributes != null) {
if (element.attributes.length) {
object["attributes"] = {};
for (var i = 0; i < element.attributes.length; i++) {
object["attributes"][element.attributes[i].nodeName] = element.attributes[i].nodeValue;
}
}
}
}
treeHTML(element, treeObject);
return (json) ? JSON.stringify(treeObject) : treeObject;
}
Working example: http://jsfiddle.net/JUSsf/ (Tested in Chrome, I can't guarantee full browser support - you will have to test this).
?It creates an object that contains the tree structure of the HTML page in the format you requested and then uses JSON.stringify()
which is included in most modern browsers (IE8+, Firefox 3+ .etc); If you need to support older browsers you can include json2.js.
It can take either a DOM element or a string
containing valid XHTML as an argument (I believe, I'm not sure whether the DOMParser()
will choke in certain situations as it is set to "text/xml"
or whether it just doesn't provide error handling. Unfortunately "text/html"
has poor browser support).
You can easily change the range of this function by passing a different value as element
. Whatever value you pass will be the root of your JSON map.
The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path
Error: "Can not find the tag library descriptor for "http://java.sun.com/jsp/jstl/core"
Solution: Adding the tomcat server in the server runtime will do the job : Project Properties-> Java Build Path-> Add Library -> Select "Server Runtime" from the list-> Next->Select "Apache Tomcat"-> Finish
This solution work for me.
There is a contains
method for lists, so you should be able to do:
Arrays.asList(yourArray).contains(yourObject);
Warning: this might not do what you (or I) expect, see Tom's comment below.
You can also match case insensitive regexs and make it more readable by using the Pattern.CASE_INSENSITIVE constant like:
Pattern mypattern = Pattern.compile(MYREGEX, Pattern.CASE_INSENSITIVE);
Matcher mymatcher= mypattern.matcher(mystring);
You can send it and insert the data to the body:
var xhr = new XMLHttpRequest();
xhr.open("POST", yourUrl, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
value: value
}));
By the way, for get request:
var xhr = new XMLHttpRequest();
// we defined the xhr
xhr.onreadystatechange = function () {
if (this.readyState != 4) return;
if (this.status == 200) {
var data = JSON.parse(this.responseText);
// we get the returned data
}
// end of state change: it can be after some time (async)
};
xhr.open('GET', yourUrl, true);
xhr.send();
If you have vim
you can use this:
Not tested for every encoding.
The cool part about this is that you don't have to know the source encoding
vim +"set nobomb | set fenc=utf8 | x" filename.txt
Be aware that this command modify directly the file
+
: Used by vim to directly enter command when opening a file. Usualy used to open a file at a specific line: vim +14 file.txt
|
: Separator of multiple commands (like ;
in bash)set nobomb
: no utf-8 BOMset fenc=utf8
: Set new encoding to utf-8 doc linkx
: Save and close filefilename.txt
: path to the file"
: qotes are here because of pipes. (otherwise bash will use them as bash pipe)If a global hotkey would suffice, then RegisterHotKey would do the trick
I had a similar issue. The Maven projects have different structure than "Dynamic Web Projects". Eclipse knows only how to deploy the Dynamic Web Projects (project structure used by Web Tools Platform).
In order to solve this and tell Eclipse how to deploy a "maven style" projects, you have to install the M2E Eclipse WTP plugin (I suppose you are already using the m2e plugin).
To install: Preferences->Maven->Discovery->Open Catalog and choose the WTP plugin.
After reinstalling, you will be able to "run on server" those projects which are maven web projects.
Hope that helps,
public static bool MyConcat<T>(ref T[] base_arr, ref T[] add_arr)
{
try
{
int base_size = base_arr.Length;
int size_T = System.Runtime.InteropServices.Marshal.SizeOf(base_arr[0]);
Array.Resize(ref base_arr, base_size + add_arr.Length);
Buffer.BlockCopy(add_arr, 0, base_arr, base_size * size_T, add_arr.Length * size_T);
}
catch (IndexOutOfRangeException ioor)
{
MessageBox.Show(ioor.Message);
return false;
}
return true;
}
It is printing the statement twice because it is printing it for both the parent and the child. The parent has a parent id of 0
Try something like this:
pid_t pid;
pid = fork();
if (pid == 0)
printf("This is the child process. My pid is %d and my parent's id is %d.\n", getpid(),getppid());
else
printf("This is the parent process. My pid is %d and my parent's id is %d.\n", getpid(), getppid() );
As of PHP 5.6 @$filePath
will not work in CURLOPT_POSTFIELDS
without CURLOPT_SAFE_UPLOAD
being set and it is completely removed in PHP 7. You will need to use a CurlFile object, RFC here.
$fields = [
'name' => new \CurlFile($filePath, 'image/png', 'filename.png')
];
curl_setopt($resource, CURLOPT_POSTFIELDS, $fields);
You can also use the magic method __toString()
$xml->code[0]->lat->__toString()
How to use index in select statement?
this way:
SELECT * FROM table1 USE INDEX (col1_index,col2_index)
WHERE col1=1 AND col2=2 AND col3=3;
SELECT * FROM table1 IGNORE INDEX (col3_index)
WHERE col1=1 AND col2=2 AND col3=3;
SELECT * FROM t1 USE INDEX (i1) IGNORE INDEX (i2) USE INDEX (i2);
And many more ways check this
Do I need to explicitly specify?
Now, if the repository is already existing on a remote machine, and you do not have anything locally, you do git clone instead.
The URL format is simple, it is PROTOCOL:/[user@]remoteMachineAddress/path/to/repository.git
For example, cloning a repository on a machine to which you have SSH access using the "dev" user, residing in /srv/repositories/awesomeproject.git and that machine has the ip 10.11.12.13 you do:
git clone ssh://[email protected]/srv/repositories/awesomeproject.git
I had the same error today, after deploying our service calling an external service to the staging environment in azure. Local the service called the external service without errors, but after deployment it didn't.
In the end it turned out to be that the external service has a IP validation. The new environment in Azure has another IP and it was rejected.
So if you ever get this error calling external services
It might be an IP restriction.
Here are some solutions, all pass the test suite, test suite and benchmark included, if you want copy and paste to test, try This Gist.
Base on https://stackoverflow.com/a/14428340/1877620, but fix if there is no decimal point.
if (typeof Number.prototype.format === 'undefined') {
Number.prototype.format = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.');
a[0] = a[0].replace(/\d(?=(\d{3})+$)/g, '$&,');
return a.join('.');
}
}
if (typeof Number.prototype.format === 'undefined') {
Number.prototype.format = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.'),
// skip the '-' sign
head = Number(this < 0);
// skip the digits that's before the first thousands separator
head += (a[0].length - head) % 3 || 3;
a[0] = a[0].slice(0, head) + a[0].slice(head).replace(/\d{3}/g, ',$&');
return a.join('.');
};
}
if (typeof Number.prototype.format === 'undefined') {
Number.prototype.format = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('.');
a[0] = a[0]
.split('').reverse().join('')
.replace(/\d{3}(?=\d)/g, '$&,')
.split('').reverse().join('');
return a.join('.');
};
}
if (typeof Number.prototype.format === 'undefined') {
Number.prototype.format = function (precision) {
if (!isFinite(this)) {
return this.toString();
}
var a = this.toFixed(precision).split('');
a.push('.');
var i = a.indexOf('.') - 3;
while (i > 0 && a[i-1] !== '-') {
a.splice(i, 0, ',');
i -= 3;
}
a.pop();
return a.join('');
};
}
console.log('======== Demo ========')
console.log(
(1234567).format(0),
(1234.56).format(2),
(-1234.56).format(0)
);
var n = 0;
for (var i=1; i<20; i++) {
n = (n * 10) + (i % 10)/100;
console.log(n.format(2), (-n).format(2));
}
If we want custom thousands separator or decimal separator, use replace()
:
123456.78.format(2).replace(',', ' ').replace('.', ' ');
function assertEqual(a, b) {
if (a !== b) {
throw a + ' !== ' + b;
}
}
function test(format_function) {
console.log(format_function);
assertEqual('NaN', format_function.call(NaN, 0))
assertEqual('Infinity', format_function.call(Infinity, 0))
assertEqual('-Infinity', format_function.call(-Infinity, 0))
assertEqual('0', format_function.call(0, 0))
assertEqual('0.00', format_function.call(0, 2))
assertEqual('1', format_function.call(1, 0))
assertEqual('-1', format_function.call(-1, 0))
// decimal padding
assertEqual('1.00', format_function.call(1, 2))
assertEqual('-1.00', format_function.call(-1, 2))
// decimal rounding
assertEqual('0.12', format_function.call(0.123456, 2))
assertEqual('0.1235', format_function.call(0.123456, 4))
assertEqual('-0.12', format_function.call(-0.123456, 2))
assertEqual('-0.1235', format_function.call(-0.123456, 4))
// thousands separator
assertEqual('1,234', format_function.call(1234.123456, 0))
assertEqual('12,345', format_function.call(12345.123456, 0))
assertEqual('123,456', format_function.call(123456.123456, 0))
assertEqual('1,234,567', format_function.call(1234567.123456, 0))
assertEqual('12,345,678', format_function.call(12345678.123456, 0))
assertEqual('123,456,789', format_function.call(123456789.123456, 0))
assertEqual('-1,234', format_function.call(-1234.123456, 0))
assertEqual('-12,345', format_function.call(-12345.123456, 0))
assertEqual('-123,456', format_function.call(-123456.123456, 0))
assertEqual('-1,234,567', format_function.call(-1234567.123456, 0))
assertEqual('-12,345,678', format_function.call(-12345678.123456, 0))
assertEqual('-123,456,789', format_function.call(-123456789.123456, 0))
// thousands separator and decimal
assertEqual('1,234.12', format_function.call(1234.123456, 2))
assertEqual('12,345.12', format_function.call(12345.123456, 2))
assertEqual('123,456.12', format_function.call(123456.123456, 2))
assertEqual('1,234,567.12', format_function.call(1234567.123456, 2))
assertEqual('12,345,678.12', format_function.call(12345678.123456, 2))
assertEqual('123,456,789.12', format_function.call(123456789.123456, 2))
assertEqual('-1,234.12', format_function.call(-1234.123456, 2))
assertEqual('-12,345.12', format_function.call(-12345.123456, 2))
assertEqual('-123,456.12', format_function.call(-123456.123456, 2))
assertEqual('-1,234,567.12', format_function.call(-1234567.123456, 2))
assertEqual('-12,345,678.12', format_function.call(-12345678.123456, 2))
assertEqual('-123,456,789.12', format_function.call(-123456789.123456, 2))
}
console.log('======== Testing ========');
test(Number.prototype.format);
test(Number.prototype.format1);
test(Number.prototype.format2);
test(Number.prototype.format3);
function benchmark(f) {
var start = new Date().getTime();
f();
return new Date().getTime() - start;
}
function benchmark_format(f) {
console.log(f);
time = benchmark(function () {
for (var i = 0; i < 100000; i++) {
f.call(123456789, 0);
f.call(123456789, 2);
}
});
console.log(time.format(0) + 'ms');
}
// if not using async, browser will stop responding while running.
// this will create a new thread to benchmark
async = [];
function next() {
setTimeout(function () {
f = async.shift();
f && f();
next();
}, 10);
}
console.log('======== Benchmark ========');
async.push(function () { benchmark_format(Number.prototype.format); });
next();
I had a similar problem and found that if you remove the size definition, it works for some reason.
Remove:
<size
android:width="60dp"
android:height="40dp" />
from the shape.
Let me know if this works!
If you wish to leave content as it, can wrap it with scrollable.
Useful if you have inputs in the children:
return Stack(
children: <Widget>[
Positioned(
child: SingleChildScrollView(
child: Column(
children: children
..add(Container(
height: 56, // button heigh, so could scroll underlapping area
)))),
),
Positioned(
child: Align(
alignment: Alignment.bottomCenter,
child: button,
),
)
],
);
With React-Native 0.56, the above method of changing Text.prototype.render
does not work anymore, so you have to use your own component, which can be done in one line!
MyText.js
export default props => <Text {...props} style={[{fontFamily: 'Helvetica'}, props.style]}>{props.children}</Text>
AnotherComponent.js
import Text from './MyText';
...
<Text>This will show in default font.</Text>
...
In case using AWS-SKD for ruby V2.
s3.list_objects(bucket: bucket_name, prefix: "foo/").contents.each do |obj|
next if obj.key == "foo/"
resp = s3.delete_object({
bucket: bucket_name,
key: obj.key,
})
end
attention please, all "foo/*" under bucket will delete.
Just in case this answer helps someone: as found here, you might save yourself a lot of trouble running Sysinternals Autoruns as administrator. Just go to the "Services" tab and delete your service.
It did the trick for me on a machine where I didn't have any permission to edit the registry.
BASEPAIRS = { "T": "A", "A": "T", "G": "C", "C": "G" } What would you use?
Maybe:
static const char basepairs[] = "ATAGCG";
// lookup:
if (const char* p = strchr(basepairs, c))
// use p[1]
;-)
classes are like blueprints to create objects. Let's make a metaphor with building a house. You have the blueprint of the house so you can build a house. You can build as many houses as your resources allow.
In this metaphor, the blueprint is the class and the house is the instantiation of the class, creating an object.
The houses have common attributes like having a roof, living room, etc. This is where you init method goes. It constructs the object (house) with the attributes you want.
Lets suppose you have:
`class house:`
`roof = True`
`def __init__(self, color):`
`self.wallcolor = color`
>> create little goldlock's house:
>> goldlock = house() #() invoke's class house, not function
>> goldlock.roof
>> True
all house's have roofs, now let's define goldlock's wall color to white:
>> goldlock.wallcolor = 'white'
>>goldlock.wallcolor
>> 'white'
If you have
varname <- c("a", "b", "d")
you can do
get(varname[1]) + 2
for
a + 2
or
assign(varname[1], 2 + 2)
for
a <- 2 + 2
So it looks like you use GET when you want to evaluate a formula that uses a variable (such as a concatenate), and ASSIGN when you want to assign a value to a pre-declared variable.
Syntax for assign: assign(x, value)
x: a variable name, given as a character string. No coercion is done, and the first element of a character vector of length greater than one will be used, with a warning.
value: value to be assigned to x.
Variables can be assigned but not declared inside the conditional statement:
int v;
if((v = someMethod()) != 0) return true;
Spring source code to explain how ApplicationContextAware work
when you use ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
In AbstractApplicationContext
class,the refresh()
method have the following code:
// Prepare the bean factory for use in this context.
prepareBeanFactory(beanFactory);
enter this method,beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this));
will add ApplicationContextAwareProcessor to AbstractrBeanFactory.
protected void prepareBeanFactory(ConfigurableListableBeanFactory beanFactory) {
// Tell the internal bean factory to use the context's class loader etc.
beanFactory.setBeanClassLoader(getClassLoader());
beanFactory.setBeanExpressionResolver(new StandardBeanExpressionResolver(beanFactory.getBeanClassLoader()));
beanFactory.addPropertyEditorRegistrar(new ResourceEditorRegistrar(this, getEnvironment()));
// Configure the bean factory with context callbacks.
beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this));
...........
When spring initialize bean in AbstractAutowireCapableBeanFactory
,
in method initializeBean
,call applyBeanPostProcessorsBeforeInitialization
to implement the bean post process. the process include inject the applicationContext.
@Override
public Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
throws BeansException {
Object result = existingBean;
for (BeanPostProcessor beanProcessor : getBeanPostProcessors()) {
result = beanProcessor.postProcessBeforeInitialization(result, beanName);
if (result == null) {
return result;
}
}
return result;
}
when BeanPostProcessor implement Objectto execute the postProcessBeforeInitialization method,for example ApplicationContextAwareProcessor
that added before.
private void invokeAwareInterfaces(Object bean) {
if (bean instanceof Aware) {
if (bean instanceof EnvironmentAware) {
((EnvironmentAware) bean).setEnvironment(this.applicationContext.getEnvironment());
}
if (bean instanceof EmbeddedValueResolverAware) {
((EmbeddedValueResolverAware) bean).setEmbeddedValueResolver(
new EmbeddedValueResolver(this.applicationContext.getBeanFactory()));
}
if (bean instanceof ResourceLoaderAware) {
((ResourceLoaderAware) bean).setResourceLoader(this.applicationContext);
}
if (bean instanceof ApplicationEventPublisherAware) {
((ApplicationEventPublisherAware) bean).setApplicationEventPublisher(this.applicationContext);
}
if (bean instanceof MessageSourceAware) {
((MessageSourceAware) bean).setMessageSource(this.applicationContext);
}
if (bean instanceof ApplicationContextAware) {
((ApplicationContextAware) bean).setApplicationContext(this.applicationContext);
}
}
}
You can use find with a Predicate as follows:
list.Find(x => x.Id == IdToFind);
This will return the first object in the list which meets the conditions defined by the predicate (ie in my example I am looking for an object with an ID).
Add -fPIC
at the end of CMAKE_CXX_FLAGS
and CMAKE_C_FLAG
Example:
set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall --std=c++11 -O3 -fPIC" )
set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -O3 -fPIC" )
This solved my issue.
use this
android:background="@drawable/your_image"
in your activity very first linear or relative layout.
The answer will depend on your shell.
In zsh
, for example, you can do the following:
echo *(/)
And all directories within the current working directory will be displayed.
See man zshexpn
for more information.
An alternative approach would be to use find(1)
, which should work on most Unix flavours:
find . -maxdepth 1 -type d -print
find(1)
has many uses, so I'd definitely recommend man find
.
The jQuery way to click a link is
$('#LinkID').click();
For mailTo link, you have to write the following code
$('#LinkID')[0].click();
I have also noticed that cordova has a "serve" command that Phonegap doesn't. This command launches a local server on port 8000. This is handy for running your app in Chrome and using the Ripple emulator.
just change the extension to .bmp.
Do this:
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
_bitmapScaled.compress(Bitmap.CompressFormat.PNG, 40, bytes);
//you can create a new file name "test.BMP" in sdcard folder.
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "test.bmp")
It'll sound that I'm just fooling around, but try it once and it'll get saved in BMP
format. Cheers!
Just use negative margins, in the second div say:
<div style="margin-top: -25px;">
And make sure to set the z-index property to get the layering you want.
We, SnippetBucket.com working for enterprise linux RedHat, found httpd server don't allow proxy to run, neither localhost or 127.0.0.1, nor any other external domain.
[error] (13)Permission denied: proxy: AJP: attempt to connect to
10.x.x.x:8069 (virtualhost.virtualdomain.com) failed
type=AVC msg=audit(1265039669.305:14): avc: denied { name_connect } for pid=4343 comm="httpd" dest=8069
scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:port_t:s0 tclass=tcp_socket
/usr/sbin/setsebool httpd_can_network_connect 1
/usr/sbin/setsebool -P httpd_can_network_connect 1
This works in my case for getting table name and column name in the corresponding table for indexed fields.
SELECT TABLE_NAME , COLUMN_NAME, COMMENT
FROM information_schema.statistics
WHERE table_schema = 'database_name';
As I understand, you want to recursively copy test directory into /home/server/
path...
This can be done as:
-cp -rf /home/server/folder/test/* /home/server/
Hope this helps
Also make sure you using the ssh github url and not the https
{Imagine two objects: A and B of same type _t(with respect to C++) and you are thinking about shallow/deep copying A to B}
Shallow Copy: Simply makes a copy of the reference to A into B. Think about it as a copy of A's Address. So, the addresses of A and B will be the same i.e. they will be pointing to the same memory location i.e. data contents.
Deep copy: Simply makes a copy of all the members of A, allocates memory in a different location for B and then assigns the copied members to B to achieve deep copy. In this way, if A becomes non-existant B is still valid in the memory. The correct term to use would be cloning, where you know that they both are totally the same, but yet different (i.e. stored as two different entities in the memory space). You can also provide your clone wrapper where you can decide via inclusion/exclusion list which properties to select during deep copy. This is quite a common practice when you create APIs.
You can choose to do a Shallow Copy ONLY_IF you understand the stakes involved. When you have enormous number of pointers to deal with in C++ or C, doing a shallow copy of an object is REALLY a bad idea.
EXAMPLE_OF_DEEP COPY_ An example is, when you are trying to do image processing and object recognition you need to mask "Irrelevant and Repetitive Motion" out of your processing areas. If you are using image pointers, then you might have the specification to save those mask images. NOW... if you do a shallow copy of the image, when the pointer references are KILLED from the stack, you lost the reference and its copy i.e. there will be a runtime error of access violation at some point. In this case, what you need is a deep copy of your image by CLONING it. In this way you can retrieve the masks in case you need them in the future.
EXAMPLE_OF_SHALLOW_COPY I am not extremely knowledgeable compared to the users in StackOverflow so feel free to delete this part and put a good example if you can clarify. But I really think it is not a good idea to do shallow copy if you know that your program is gonna run for an infinite period of time i.e. continuous "push-pop" operation over the stack with function calls. If you are demonstrating something to an amateur or novice person (e.g. C/C++ tutorial stuff) then it is probably okay. But if you are running an application such as surveillance and detection system, or Sonar Tracking System, you are not supposed to keep shallow copying your objects around because it will kill your program sooner or later.
If you are still looking for one, I just released mine: http://github.com/weixiyen/jquery-filedrop
Works for Firefox 3.6 right now. I decided not to do the Chrome hack for now and let Webkit catch up with FileReader() in the next versions of Safari and Chrome.
This plugin is future compatible.
FileReader() is the official standard over something like XHR.getAsBinary() which is deprecated according to mozilla.
It's also the only HTML5 desktop drag+drop plugin out there that I know of which allows you to send extra data along with the file, including data that can be calculated at the time of upload with a callback function.
I think we can modify the UsedRange
code from @Readify's answer above to get the last used column even if the starting columns are blank or not.
So this lColumn = ws.UsedRange.Columns.Count
modified to
this lColumn = ws.UsedRange.Column + ws.UsedRange.Columns.Count - 1
will give reliable results always
?Sheet1.UsedRange.Column + Sheet1.UsedRange.Columns.Count - 1
Above line Yields 9
in the immediate window.
@objc
, see below example!#selector(name)
.private
or public
doesn't matter; you can use private.override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
let menuButtonImage = UIImage(systemName: "flame")
let menuButton = UIBarButtonItem(image: menuButtonImage, style: .plain, target: self, action: #selector(didTapMenuButton))
navigationItem.rightBarButtonItem = menuButton
}
@objc public func didTapMenuButton() {
print("Hello World")
}
You should get your data in a specific format by melting your data (see below for how melted data looks like) before you plot. Otherwise, what you have done seems to be okay.
require(reshape2)
df <- read.csv("TestData.csv", header=T)
# melting by "Label". `melt is from the reshape2 package.
# do ?melt to see what other things it can do (you will surely need it)
df.m <- melt(df, id.var = "Label")
> df.m # pasting some rows of the melted data.frame
# Label variable value
# 1 Good F1 0.64778924
# 2 Good F1 0.54608791
# 3 Good F1 0.46134200
# 4 Good F1 0.79421221
# 5 Good F1 0.56919951
# 6 Good F1 0.73568570
# 7 Good F1 0.65094207
# 8 Good F1 0.45749702
# 9 Good F1 0.80861929
# 10 Good F1 0.67310067
# 11 Good F1 0.68781739
# 12 Good F1 0.47009455
# 13 Good F1 0.95859182
# 14 Good F1 1.00000000
# 15 Good F1 0.46908343
# 16 Bad F1 0.57875528
# 17 Bad F1 0.28938046
# 18 Bad F1 0.68511766
require(ggplot2)
ggplot(data = df.m, aes(x=variable, y=value)) + geom_boxplot(aes(fill=Label))
Edit: I realise that you might need to facet. Here's an implementation of that as well:
p <- ggplot(data = df.m, aes(x=variable, y=value)) +
geom_boxplot(aes(fill=Label))
p + facet_wrap( ~ variable, scales="free")
Edit 2: How to add x-labels
, y-labels
, title
, change legend heading
, add a jitter
?
p <- ggplot(data = df.m, aes(x=variable, y=value))
p <- p + geom_boxplot(aes(fill=Label))
p <- p + geom_jitter()
p <- p + facet_wrap( ~ variable, scales="free")
p <- p + xlab("x-axis") + ylab("y-axis") + ggtitle("Title")
p <- p + guides(fill=guide_legend(title="Legend_Title"))
p
Edit 3: How to align geom_point()
points to the center of box-plot? It could be done using position_dodge
. This should work.
require(ggplot2)
p <- ggplot(data = df.m, aes(x=variable, y=value))
p <- p + geom_boxplot(aes(fill = Label))
# if you want color for points replace group with colour=Label
p <- p + geom_point(aes(y=value, group=Label), position = position_dodge(width=0.75))
p <- p + facet_wrap( ~ variable, scales="free")
p <- p + xlab("x-axis") + ylab("y-axis") + ggtitle("Title")
p <- p + guides(fill=guide_legend(title="Legend_Title"))
p
If you have multiple windows open and only want to close the one that was closed use JFrame.dispose().
If you want to close all windows and terminate the application use System.exit()
I had the same issue with Laravel 5.1 migration Schema Builder with MariaDB 10.1.
The issue was that I had typed unigned
instead of unsigned
(the s
letter was missing) while setting the column.
After fixing the typo error was fixed for me.
Depending on how you're using the list, it may be worth it to use a TreeSet and then use the toArray() method at the end. I had a case where I needed a sorted list, and I found that the TreeSet + toArray() was much faster than adding to an array and merge sorting at the end.
static final PcapLinkType[] values = { DLT_NULL, DLT_EN10MB, DLT_EN3MB, null ...}
...
public static PcapLinkType getPcapLinkTypeForInt(int num){
try{
return values[int];
}catch(ArrayIndexOutOfBoundsException e){
return DLT_UKNOWN;
}
}
I had the same issue, unable to resize the image when adjusting browser dimensions.
Bad Code:
html {
background-color: white;
background-image: url("example.png");
background-repeat: no-repeat;
background-attachment: scroll;
background-position: 0% 0%;
}
Good Code:
html {
background-color: white;
background-image: url("example.png");
background-repeat: no-repeat;
background-attachment: scroll;
background-position: 0% 0%;
background-size: contain;
}
The key here is the addition of this element -> background-size: contain;
For Python 2.7 and Pandas 0.24.2 and using Psycopg2
Psycopg2 Connection Module
def dbConnect (db_parm, username_parm, host_parm, pw_parm):
# Parse in connection information
credentials = {'host': host_parm, 'database': db_parm, 'user': username_parm, 'password': pw_parm}
conn = psycopg2.connect(**credentials)
conn.autocommit = True # auto-commit each entry to the database
conn.cursor_factory = RealDictCursor
cur = conn.cursor()
print ("Connected Successfully to DB: " + str(db_parm) + "@" + str(host_parm))
return conn, cur
Connect to the database
conn, cur = dbConnect(databaseName, dbUser, dbHost, dbPwd)
Assuming dataframe to be present already as df
output = io.BytesIO() # For Python3 use StringIO
df.to_csv(output, sep='\t', header=True, index=False)
output.seek(0) # Required for rewinding the String object
copy_query = "COPY mem_info FROM STDOUT csv DELIMITER '\t' NULL '' ESCAPE '\\' HEADER " # Replace your table name in place of mem_info
cur.copy_expert(copy_query, output)
conn.commit()
\\loop throgh all rows of the grid view
if (GridView1.Rows[i - 1].Cells[4].Text.ToString() == "value1")
{
GridView1.Rows[i - 1].ForeColor = Color.Black;
}
else if (GridView1.Rows[i - 1].Cells[4].Text.ToString() == "value2")
{
GridView1.Rows[i - 1].ForeColor = Color.Blue;
}
else if (GridView1.Rows[i - 1].Cells[4].Text.ToString() == "value3")
{
GridView1.Rows[i - 1].ForeColor = Color.Red;
}
else if (GridView1.Rows[i - 1].Cells[4].Text.ToString() == "value4")
{
GridView1.Rows[i - 1].ForeColor = Color.Green;
}
xxdiff is lightweight if that's what you're after.
SELECT * FROM `table` t1 join `table` t2 WHERE (t1.name=t2.name) && (t1.id!=t2.id)
You do not have to install another version of Xampp. I've managed to use PHP 5.6 on my Xampp PHP 7 version. Here is what you need to do to make it works:
<XAMPP_DIR>\php
to <XAMPP_DIR>\php~7
<XAMPP_DIR>\apache\conf\extra\httpd-xampp.conf
to <XAMPP_DIR>\apache\conf\extra\httpd-xampp~7.conf
<XAMPP_DIR>\php
<XAMPP_DIR>\apache\conf\extra\httpd-xampp.conf
and change all php5
occurrences to php7
. You need to change php7apache2_4.dll
to php5apache2_4.dll
, php7ts.dll
to php5ts.dll
and php7_module
to php5_module
extension_dir
in php.ini
.Restart Apache and voila.
Since you are asking about .NET, you should change the parameter from Long
to Integer
. .NET's Integer is 32-bit. (Classic VB's integer was only 16-bit.)
Declare Sub Sleep Lib "kernel32.dll" (ByVal Milliseconds As Integer)
Really though, the managed method isn't difficult...
System.Threading.Thread.CurrentThread.Sleep(5000)
Be careful when you do this. In a forms application, you block the message pump and what not, making your program to appear to have hanged. Rarely is sleep
a good idea.
You receive this error because in C language you are not allowed to use initializers with variable length arrays. The error message you are getting basically says it all.
6.7.8 Initialization
...
3 The type of the entity to be initialized shall be an array of unknown size or an object type that is not a variable length array type.
If you want for some reason to convert your file to base-64 string. Like if you want to pass it via internet, etc... you can do this
Byte[] bytes = File.ReadAllBytes("path");
String file = Convert.ToBase64String(bytes);
And correspondingly, read back to file:
Byte[] bytes = Convert.FromBase64String(b64Str);
File.WriteAllBytes(path, bytes);
You can do an interactive rebase:
git rebase -i <commit>
This will bring up your default editor. Just delete the line containing the commit you want to remove to delete that commit.
You will, of course, need access to the remote repository to apply this change there too.
See this question: Git: removing selected commits from repository
A different point is that the first sentence is parsed as:
scala> List(1,2,3).++(List(4,5))
res0: List[Int] = List(1, 2, 3, 4, 5)
Whereas the second example is parsed as:
scala> List(4,5).:::(List(1,2,3))
res1: List[Int] = List(1, 2, 3, 4, 5)
So if you are using macros, you should take care.
Besides, ++
for two lists is calling :::
but with more overhead because it is asking for an implicit value to have a builder from List to List. But microbenchmarks did not prove anything useful in that sense, I guess that the compiler optimizes such calls.
Micro-Benchmarks after warming up.
scala>def time(a: => Unit): Long = { val t = System.currentTimeMillis; a; System.currentTimeMillis - t}
scala>def average(a: () => Long) = (for(i<-1 to 100) yield a()).sum/100
scala>average (() => time { (List[Int]() /: (1 to 1000)) { case (l, e) => l ++ List(e) } })
res1: Long = 46
scala>average (() => time { (List[Int]() /: (1 to 1000)) { case (l, e) => l ::: List(e ) } })
res2: Long = 46
As Daniel C. Sobrai said, you can append the content of any collection to a list using ++
, whereas with :::
you can only concatenate lists.
setGame
has been discontinued. You must use client.user.setActivity
.
Don't forget, if you are setting a streaming status, you MUST specify a Twitch URL
An example is here:
client.user.setActivity("with depression", {
type: "STREAMING",
url: "https://www.twitch.tv/example-url"
});
>>> list1 = [1,2,3]
>>> reversed_list = list(reversed(list1))
>>> reversed_list
>>> [3, 2, 1]
I've uploaded my simple but fast implementation of a Guid class for ObjC here: obj-c GUID
Guid* guid = [Guid randomGuid];
NSLog("%@", guid.description);
It can parse to and from various string formats as well.
As long as volumes are associated with a container(either running or not), they cannot be removed.
You have to run
docker inspect <container-id>/<container-name>
on each of the running/non-running containers where this volume might have been mounted onto.
If the volume is mounted onto any one of the containers, you should see it in the Mounts section of the inspect command output. Something like this :-
"Mounts": [
{
"Type": "volume",
"Name": "user1",
"Source": "/var/lib/docker/volumes/user1/_data",
"Destination": "/opt",
"Driver": "local",
"Mode": "",
"RW": true,
"Propagation": ""
}
],
After figuring out the responsible container(s), use :-
docker rm -f container-1 container-2 ...container-n
in case of running containers
docker rm container-1 container-2 ...container-n
in case of non-running containers
to completely remove the containers from the host machine.
Then try removing the volume using the command :-
docker volume remove <volume-name/volume-id>
Add the following code inside your button click event:
InputMethodManager inputManager = (InputMethodManager) getSystemService(this.INPUT_METHOD_SERVICE);
inputManager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
Use this function from stringi
package:
> stri_detect_fixed("test",c("et","es"))
[1] FALSE TRUE
Some benchmarks:
library(stringi)
set.seed(123L)
value <- stri_rand_strings(10000, ceiling(runif(10000, 1, 100))) # 10000 random ASCII strings
head(value)
chars <- "es"
library(microbenchmark)
microbenchmark(
grepl(chars, value),
grepl(chars, value, fixed=TRUE),
grepl(chars, value, perl=TRUE),
stri_detect_fixed(value, chars),
stri_detect_regex(value, chars)
)
## Unit: milliseconds
## expr min lq median uq max neval
## grepl(chars, value) 13.682876 13.943184 14.057991 14.295423 15.443530 100
## grepl(chars, value, fixed = TRUE) 5.071617 5.110779 5.281498 5.523421 45.243791 100
## grepl(chars, value, perl = TRUE) 1.835558 1.873280 1.956974 2.259203 3.506741 100
## stri_detect_fixed(value, chars) 1.191403 1.233287 1.309720 1.510677 2.821284 100
## stri_detect_regex(value, chars) 6.043537 6.154198 6.273506 6.447714 7.884380 100
There are two ways to do this, depending on your Bash version.
The classic and portable (Bash pre-4) way is:
cmd >> outfile 2>&1
A nonportable way, starting with Bash 4 is
cmd &>> outfile
(analog to &> outfile
)
For good coding style, you should
If your script already starts with #!/bin/sh
(no matter if intended or not), then the Bash 4 solution, and in general any Bash-specific code, is not the way to go.
Also remember that Bash 4 &>>
is just shorter syntax — it does not introduce any new functionality or anything like that.
The syntax is (beside other redirection syntax) described here: http://bash-hackers.org/wiki/doku.php/syntax/redirection#appending_redirected_output_and_error_output
I add credentials for HttpWebRequest
.
myReq.UseDefaultCredentials = true;
myReq.PreAuthenticate = true;
myReq.Credentials = CredentialCache.DefaultCredentials;
This page provides great understanding about the constructor
and destructor
attribute implementation and the sections within within ELF that allow them to work. After digesting the information provided here, I compiled a bit of additional information and (borrowing the section example from Michael Ambrus above) created an example to illustrate the concepts and help my learning. Those results are provided below along with the example source.
As explained in this thread, the constructor
and destructor
attributes create entries in the .ctors
and .dtors
section of the object file. You can place references to functions in either section in one of three ways. (1) using either the section
attribute; (2) constructor
and destructor
attributes or (3) with an inline-assembly call (as referenced the link in Ambrus' answer).
The use of constructor
and destructor
attributes allow you to additionally assign a priority to the constructor/destructor to control its order of execution before main()
is called or after it returns. The lower the priority value given, the higher the execution priority (lower priorities execute before higher priorities before main() -- and subsequent to higher priorities after main() ). The priority values you give must be greater than100
as the compiler reserves priority values between 0-100 for implementation. Aconstructor
or destructor
specified with priority executes before a constructor
or destructor
specified without priority.
With the 'section' attribute or with inline-assembly, you can also place function references in the .init
and .fini
ELF code section that will execute before any constructor and after any destructor, respectively. Any functions called by the function reference placed in the .init
section, will execute before the function reference itself (as usual).
I have tried to illustrate each of those in the example below:
#include <stdio.h>
#include <stdlib.h>
/* test function utilizing attribute 'section' ".ctors"/".dtors"
to create constuctors/destructors without assigned priority.
(provided by Michael Ambrus in earlier answer)
*/
#define SECTION( S ) __attribute__ ((section ( S )))
void test (void) {
printf("\n\ttest() utilizing -- (.section .ctors/.dtors) w/o priority\n");
}
void (*funcptr1)(void) SECTION(".ctors") =test;
void (*funcptr2)(void) SECTION(".ctors") =test;
void (*funcptr3)(void) SECTION(".dtors") =test;
/* functions constructX, destructX use attributes 'constructor' and
'destructor' to create prioritized entries in the .ctors, .dtors
ELF sections, respectively.
NOTE: priorities 0-100 are reserved
*/
void construct1 () __attribute__ ((constructor (101)));
void construct2 () __attribute__ ((constructor (102)));
void destruct1 () __attribute__ ((destructor (101)));
void destruct2 () __attribute__ ((destructor (102)));
/* init_some_function() - called by elf_init()
*/
int init_some_function () {
printf ("\n init_some_function() called by elf_init()\n");
return 1;
}
/* elf_init uses inline-assembly to place itself in the ELF .init section.
*/
int elf_init (void)
{
__asm__ (".section .init \n call elf_init \n .section .text\n");
if(!init_some_function ())
{
exit (1);
}
printf ("\n elf_init() -- (.section .init)\n");
return 1;
}
/*
function definitions for constructX and destructX
*/
void construct1 () {
printf ("\n construct1() constructor -- (.section .ctors) priority 101\n");
}
void construct2 () {
printf ("\n construct2() constructor -- (.section .ctors) priority 102\n");
}
void destruct1 () {
printf ("\n destruct1() destructor -- (.section .dtors) priority 101\n\n");
}
void destruct2 () {
printf ("\n destruct2() destructor -- (.section .dtors) priority 102\n");
}
/* main makes no function call to any of the functions declared above
*/
int
main (int argc, char *argv[]) {
printf ("\n\t [ main body of program ]\n");
return 0;
}
output:
init_some_function() called by elf_init()
elf_init() -- (.section .init)
construct1() constructor -- (.section .ctors) priority 101
construct2() constructor -- (.section .ctors) priority 102
test() utilizing -- (.section .ctors/.dtors) w/o priority
test() utilizing -- (.section .ctors/.dtors) w/o priority
[ main body of program ]
test() utilizing -- (.section .ctors/.dtors) w/o priority
destruct2() destructor -- (.section .dtors) priority 102
destruct1() destructor -- (.section .dtors) priority 101
The example helped cement the constructor/destructor behavior, hopefully it will be useful to others as well.
You can use ifconfig.
# ifconfig eth0 up
# ifconfig eth0
If the entry shows RUNNING, the interface is physically connected. This will be shown regardless if the interface is configured.
This is just another way to get the information in /sys/class/net/eth0/operstate
.
Codeigniter has a function that retrieves your base path which is:
FCPATH and BASEPATH i recommand use FCPATH.
for your base url use:
<?=base_url()?>
if your php short tag is off
<?php echo base_url(); ?>
for example: if you want to link you css files which is in your base path
<script src='<?=base_url()?>js/jquery.js' type='text/javascript' />
Add C:\Windows\System32\cmd.exe as an external tool. Once run, you can then access it via the normal eclipse console.
http://www.avajava.com/tutorials/lessons/how-do-i-open-a-windows-command-prompt-in-my-console.html
(source: avajava.com)
Add the column and update all rows in the DataTable
, for example:
DataTable tbl = new DataTable();
tbl.Columns.Add(new DataColumn("ID", typeof(Int32)));
tbl.Columns.Add(new DataColumn("Name", typeof(string)));
for (Int32 i = 1; i <= 10; i++) {
DataRow row = tbl.NewRow();
row["ID"] = i;
row["Name"] = i + ". row";
tbl.Rows.Add(row);
}
DataColumn newCol = new DataColumn("NewColumn", typeof(string));
newCol.AllowDBNull = true;
tbl.Columns.Add(newCol);
foreach (DataRow row in tbl.Rows) {
row["NewColumn"] = "You DropDownList value";
}
//if you don't want to allow null-values'
newCol.AllowDBNull = false;
Highlight the cell(s)/column which you want as Duration, right click on the mouse to "Format Cells". Go to "Custom" and look for "h:mm" if you want to input duration in hour and minutes format. If you want to include seconds as well, click on "h:mm:ss". You can even add up the total duration after that.
Hope this helps.
Once you have cloned the repo, you have everything: you can then hg up branchname
or hg up tagname
to update your working copy.
UP: hg up
is a shortcut of hg update
, which also has hg checkout
alias for people with git
habits.
Big task, chances are you shouldn't reinvent the wheel rather using an existing wheel (such as paypal).
However, if you insist on continuing. Start small, you can use a credit card processing facility (Moneris, Authorize.NET) to process credit cards. Most providers have an API you can use. Be wary that you may need to use different providers depending on the card type (Discover, Visa, Amex, Mastercard) and Country (USA, Canada, UK). So build it so that you can communicate with multiple credit card processing APIs.
Security is essential if you are storing credit cards and payment details. Ensure that you are encrypting things properly.
Again, don't reinvent the wheel. You are better off using an existing provider and focussing your development attention on solving an problem that can't easily be purchase.
it seems that the OP meant to find out whether the string 'Mel' exists in a particular column, not contained in a column, therefore the use of contains is not needed, and is not efficient. A simple equals-to is enough:
(a['Names']=='Mel').any()
We can use it as a function too. Angular throws some error if used as a prototype. Thanks @HarpyWar. It helped me solve a problem.
var removeItem = function (object, key, value) {
if (value == undefined)
return;
for (var i in object) {
if (object[i][key] == value) {
object.splice(i, 1);
}
}
};
var collection = [
{ id: "5f299a5d-7793-47be-a827-bca227dbef95", title: "one" },
{ id: "87353080-8f49-46b9-9281-162a41ddb8df", title: "two" },
{ id: "a1af832c-9028-4690-9793-d623ecc75a95", title: "three" }
];
removeItem(collection, "id", "87353080-8f49-46b9-9281-162a41ddb8df");
file_path = "/path/to/yourfile.txt"
with open(file_path, 'a') as file:
file.write("This will be added to the next line\n")
or
log_file = open('log.txt', 'a')
log_file.write("This will be added to the next line\n")
Briefly bitmask helps to manipulate position of multiple values. There is a good example here ;
Bitflags are a method of storing multiple values, which are not mutually exclusive, in one variable. You've probably seen them before. Each flag is a bit position which can be set on or off. You then have a bunch of bitmasks #defined for each bit position so you can easily manipulate it:
#define LOG_ERRORS 1 // 2^0, bit 0
#define LOG_WARNINGS 2 // 2^1, bit 1
#define LOG_NOTICES 4 // 2^2, bit 2
#define LOG_INCOMING 8 // 2^3, bit 3
#define LOG_OUTGOING 16 // 2^4, bit 4
#define LOG_LOOPBACK 32 // and so on...
// Only 6 flags/bits used, so a char is fine
unsigned char flags;
// initialising the flags
// note that assigning a value will clobber any other flags, so you
// should generally only use the = operator when initialising vars.
flags = LOG_ERRORS;
// sets to 1 i.e. bit 0
//initialising to multiple values with OR (|)
flags = LOG_ERRORS | LOG_WARNINGS | LOG_INCOMING;
// sets to 1 + 2 + 8 i.e. bits 0, 1 and 3
// setting one flag on, leaving the rest untouched
// OR bitmask with the current value
flags |= LOG_INCOMING;
// testing for a flag
// AND with the bitmask before testing with ==
if ((flags & LOG_WARNINGS) == LOG_WARNINGS)
...
// testing for multiple flags
// as above, OR the bitmasks
if ((flags & (LOG_INCOMING | LOG_OUTGOING))
== (LOG_INCOMING | LOG_OUTGOING))
...
// removing a flag, leaving the rest untouched
// AND with the inverse (NOT) of the bitmask
flags &= ~LOG_OUTGOING;
// toggling a flag, leaving the rest untouched
flags ^= LOG_LOOPBACK;
**
WARNING: DO NOT use the equality operator (i.e. bitflags == bitmask) for testing if a flag is set - that expression will only be true if that flag is set and all others are unset. To test for a single flag you need to use & and == :
**
if (flags == LOG_WARNINGS) //DON'T DO THIS
...
if ((flags & LOG_WARNINGS) == LOG_WARNINGS) // The right way
...
if ((flags & (LOG_INCOMING | LOG_OUTGOING)) // Test for multiple flags set
== (LOG_INCOMING | LOG_OUTGOING))
...
You can also search C++ Triks
The below code will help you to auto open the .exe file from excel...
Sub Auto_Open()
Dim x As Variant
Dim Path As String
' Set the Path variable equal to the path of your program's installation
Path = "C:\Program Files\GameTop.com\Alien Shooter\game.exe"
x = Shell(Path, vbNormalFocus)
End Sub
A more modern approach:
const changeFavicon = link => {
let $favicon = document.querySelector('link[rel="icon"]')
// If a <link rel="icon"> element already exists,
// change its href to the given link.
if ($favicon !== null) {
$favicon.href = link
// Otherwise, create a new element and append it to <head>.
} else {
$favicon = document.createElement("link")
$favicon.rel = "icon"
$favicon.href = link
document.head.appendChild($favicon)
}
}
You can then use it like this:
changeFavicon("http://www.stackoverflow.com/favicon.ico")
This problem can occur not only due to permissions, but also due to event source key missing because it wasn't registered successfully (you need admin privileges to do it - if you just open Visual Studio as usual and run the program normally it won't be enough). Make sure that your event source "MyApp" is actually registered, i.e. that it appears in the registry under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\eventlog\Application
.
From MSDN EventLog.CreateEventSource():
To create an event source in Windows Vista and later or Windows Server 2003, you must have administrative privileges.
So you must either run the event source registration code as an admin (also, check if the source already exists before - see the above MSDN example) or you can manually add the key to the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\eventlog\Application\MyApp
;EventMessageFile
and set its value to e.g. C:\Windows\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll
This coffeescript works for me with Node - the trick is that the _id get's stripped of its ObjectID wrapper when sent and returned from the client and so this needs to be replaced for updates (when no _id is provided, save will revert to insert and add one).
app.post '/new', (req, res) ->
# post data becomes .query
data = req.query
coll = db.collection 'restos'
data._id = ObjectID(data._id) if data._id
coll.save data, {safe:true}, (err, result) ->
console.log("error: "+err) if err
return res.send 500, err if err
console.log(result)
return res.send 200, JSON.stringify result
If, as I just encountered, you happen to have a jar file listed in the Project Structures->Libraries that is not in your classpath, the correct answer can be found by following the link given by @CrazyCoder above: Look here http://www.jetbrains.com/idea/webhelp/configuring-module-dependencies-and-libraries.html
This says that to add the jar file as a module dependency within the Project Structure dialog:
I came across this as a regression bug when refactoring code from traditional using
blocks to the new C# 8.0 using declaration style, where the block ends when the variable falls out of scope at the end of the method.
Old style:
//...
using (MemoryStream ms = new MemoryStream())
{
using (CryptoStream cs = new CryptoStream(ms, aesCrypto.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(rawCipherText, 0, rawCipherText.Length);
}
return Encoding.Unicode.GetString(ms.ToArray());
}
New, less indented style:
//...
using MemoryStream ms = new MemoryStream();
using CryptoStream cs = new CryptoStream(ms, aesCrypto.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(rawCipherText, 0, rawCipherText.Length);
cs.FlushFinalBlock();
return Encoding.Unicode.GetString(ms.ToArray());
With the old style, the using
block for the CryptoStream terminated and the finalizer was called before memory stream gets read in the return
statement, so the CryptoStream was automatically flushed.
With the new style, the memory stream is read before the CryptoStream finalizer gets called, so I had to manually call FlushFinalBlock()
before reading from the memory stream in order to fix this issue. I had to manually flush the final block for both the encrypt and the decrypt methods, when they were written in the new using
style.
The problem still not resolved after remove the '.', then it start points the error to my folder. As i added this folder first time then i restarted the PyCharm and it automatically resolved the issue
You can also use the card layout like below
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="60dp"
app:cardCornerRadius="30dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="Template"
/>
</LinearLayout>
</androidx.cardview.widget.CardView>
Here's the answer:
import numpy
num1 = 3.1400
num2 = 3.000
numpy.format_float_positional(num1, 3, trim='-')
numpy.format_float_positional(num2, 3, trim='-')
output "3.14" and "3"
trim='-'
removes both the trailing zero's, and the decimal.
Like Eric, I used homebrew, but I used the default recipe. So:
brew install mercurial
brew install vim
And after restarting the terminal homebrew's vim should be the default. If not, you should update your $PATH
so that /usr/local/bin
is before /usr/bin
. E.g. add the following to your .profile
:
export PATH=/usr/local/bin:$PATH
I can't comment yet.
Same as Kevin but with different UI step:
This may not be the exact answer for the OP, but is the answer to the Title of the question: How to Update Gradle in Android Studio (AS):
I know this post is little bit old but here is a potential solution for anyone who has the same problem:
First, I would change the CSS display for #popup to "none" instead of "hidden".
Second, I would change the HTML as follow:
<div id="overlay-back"></div>
<div id="popup">
<div style="position: relative;">
<img class="close-image" src="images/closebtn.png" />
<span><img src="images/load_sign.png" width="400" height="566" /></span>
</div>
</div>
And for Style as follow:
.close-image
{
display: block;
float: right;
cursor: pointer;
z-index: 3;
position: absolute;
right: 0;
top: 0;
}
I got this idea from this website (kessitek.com). A very good example on how to position elements,:
How to position a div on top of another div
I hope this helps,
Zag,
I don't like "hacks" but in a quick pinch for a deadline I have done this
<li ng-if="edit === false && filtered.length === 0">
<p ng-if="group.title != 'Dispatcher News'" style="padding: 5px">No links in group.</p>
</li>
Yes, I have another inner nested ng-if, I just didn't like too many conditions on one line.
The mipmap folders are for placing your app/launcher icons (which are shown on the homescreen) in only. Any other drawable assets you use should be placed in the relevant drawable folders as before.
According to this Google blogpost:
It’s best practice to place your app icons in mipmap- folders (not the drawable- folders) because they are used at resolutions different from the device’s current density.
When referencing the mipmap- folders ensure you are using the following reference:
android:icon="@mipmap/ic_launcher"
The reason they use a different density is that some launchers actually display the icons larger than they were intended. Because of this, they use the next size up.
var str1 = "ABCDEFGHIJKLMNOP";
var str2 = "DEFG";
sttr1.search(str2);
it will return the position of the match, or -1 if it isn't found.
Since mysql_connect
has been deprecated, connect and query instead with mysqli:
$mysqli = new mysqli("hostname","username","password","database_name");
$sqlSelect="SELECT your_fieldname FROM your_table";
$result = $mysqli -> query ($sqlSelect);
And then, if you have more than one option list with the same values on the same page, put the values in an array:
while ($row = mysqli_fetch_array($result)) {
$rows[] = $row;
}
And then you can loop the array multiple times on the same page:
foreach ($rows as $row) {
print "<option value='" . $row['your_fieldname'] . "'>" . $row['your_fieldname'] . "</option>";
}
You should have to use DateTime.TryParseExact
.
var newDate = DateTime.ParseExact("20111120",
"yyyyMMdd",
CultureInfo.InvariantCulture);
OR
string str = "20111021";
string[] format = {"yyyyMMdd"};
DateTime date;
if (DateTime.TryParseExact(str,
format,
System.Globalization.CultureInfo.InvariantCulture,
System.Globalization.DateTimeStyles.None,
out date))
{
//valid
}
To use BeginForm
, here's the way to use it:
using(Html.BeginForm("uploadfiles",
"home", FormMethod.POST, new Dictionary<string, object>(){{"type", "file"}})
Thanks to your answer @RDC.
The following codes works with Swift 3
// MARK: - UICollectionViewDataSource protocol
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
//prepare your cell here..
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier, for: indexPath as IndexPath) as! MyCell
cell.myLabel.text = "my text"
//Add background view for normal cell
let backgroundView: UIView = UIView(frame: cell.bounds)
backgroundView.backgroundColor = UIColor.lightGray
cell.backgroundView = backgroundView
//Add background view for selected cell
let selectedBGView: UIView = UIView(frame: cell.bounds)
selectedBGView.backgroundColor = UIColor.green
cell.selectedBackgroundView = selectedBGView
return cell
}
// MARK: - UICollectionViewDelegate protocol
func collectionView(_ collectionView: UICollectionView, shouldHighlightItemAt indexPath: IndexPath) -> Bool {
return true
}
func collectionView(_ collectionView: UICollectionView, shouldSelectItemAt indexPath: IndexPath) -> Bool {
return true
}
#ifndef MY_HEADER_H
# define MY_HEADER_H
//put your function headers here
#endif
MY_HEADER_H
serves as a double-inclusion guard.
For the function declaration, you only need to define the signature, that is, without parameter names, like this:
int foo(char*);
If you really want to, you can also include the parameter's identifier, but it's not necessary because the identifier would only be used in a function's body (implementation), which in case of a header (parameter signature), it's missing.
This declares the function foo
which accepts a char*
and returns an int
.
In your source file, you would have:
#include "my_header.h"
int foo(char* name) {
//do stuff
return 0;
}
TextField text = new TextField();
text.textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable,
String oldValue, String newValue) {
try {
Integer.parseInt(newValue);
if (newValue.endsWith("f") || newValue.endsWith("d")) {
manualPriceInput.setText(newValue.substring(0, newValue.length()-1));
}
} catch (ParseException e) {
text.setText(oldValue);
}
}
});
The if
clause is important to handle inputs like 0.5d or 0.7f which are correctly parsed by Int.parseInt(), but shouldn't appear in the text field.
For such cases, I found very useful the Share Link Generator, it helps creating Facebook, Google+, Twitter, Pinterest, LinkedIn share buttons.
Here you go.
DataTable defaultDataTable = defaultDataSet.Tables[0];
var list = (from x in defaultDataTable.AsEnumerable()
where x.Field<string>("column1") == something
select x.Field<string>("column2")).ToList();
If you need the first column
var list = (from x in defaultDataTable.AsEnumerable()
where x.Field<string>(1) == something
select x.Field<string>(1)).ToList();
You can update progress bar only from ProgressChanged
or RunWorkerCompleted
event handlers as these are synchronized with the UI thread.
The basic idea is. Thread.Sleep
just simulates some work here. Replace it with your real routing call.
public Form1()
{
InitializeComponent();
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
backgroundWorker1.WorkerReportsProgress = true;
}
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1000);
backgroundWorker1.ReportProgress(i);
}
}
private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;
}
Below code for an uploading a single file at a time. This is correct and perfect to upload a single file. Read all commented instructions and follow the code. Definitely, it is worked.
public function upload_file() {
***// Upload folder location***
$config['upload_path'] = './public/upload/';
***// Allowed file type***
$config['allowed_types'] = 'jpg|jpeg|png|pdf';
***// Max size, i will set 2MB***
$config['max_size'] = '2024';
$config['max_width'] = '1024';
$config['max_height'] = '768';
***// load upload library***
$this->load->library('upload', $config);
***// do_upload is the method, to send the particular image and file on that
// particular
// location that is detail in $config['upload_path'].
// In bracks will set name upload, here you need to set input name attribute
// value.***
if($this->upload->do_upload('upload')) {
$data = $this->upload->data();
$post['upload'] = $data['file_name'];
} else {
$error = array('error' => $this->upload->display_errors());
}
}
Out of all the available alternatives I found Inkscape to produce the most accurate results when converting PDFs to PNG. Especially when the source file had transparent layers, Inkscape succeeded where Imagemagick and other tools failed.
This is the command I use:
inkscape "$pdf" -z --export-dpi=600 --export-area-drawing --export-png="$pngfile"
And here it is implemented in a script:
#!/bin/bash
while [ $# -gt 0 ]; do
pdf=$1
echo "Converting "$pdf" ..."
pngfile=`echo "$pdf" | sed 's/\.\w*$/.png/'`
inkscape "$pdf" -z --export-dpi=600 --export-area-drawing --export-png="$pngfile"
echo "Converted to "$pngfile""
shift
done
echo "All jobs done. Exiting."
I had to kill off all instances of mysql by first finding all the process IDs:
ps aux | grep mysql
And then killing them off:
kill -9 {pid}
Then:
mysql.server start
Worked for me.
Your line:
img = cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
will draw a rectangle in the image, but the return value will be None, so img changes to None and cannot be drawn.
Try
cv2.rectangle(img,(x,y),(x+w,y+h),(255,0,0),2)
Probably your new domain contain /
? If so, try using separator other than /
in sed
, e.g. #
, ,
etc.
find ./ -type f -exec sed -i 's#192.168.20.1#new.domain.com#' {} \;
It would also be good to enclose s///
in single quote rather than double quote to avoid variable substitution or any other unexpected behaviour
The answer clearly depends on the JVM implementation. Azul claim that their JVM
can scale ... to more than a 1/2 Terabyte of memory
By "can scale" they appear to mean "runs wells", as opposed to "runs at all".
Using trap is not always an option. For example, if you're writing some kind of re-usable function that needs error handling and that can be called from any script (after sourcing the file with helper functions), that function cannot assume anything about exit time of the outer script, which makes using traps very difficult. Another disadvantage of using traps is bad composability, as you risk overwriting previous trap that might be set earlier up in the caller chain.
There is a little trick that can be used to do proper error handling without traps. As you may already know from other answers, set -e
doesn't work inside commands if you use ||
operator after them, even if you run them in a subshell; e.g., this wouldn't work:
#!/bin/sh
# prints:
#
# --> outer
# --> inner
# ./so_1.sh: line 16: some_failed_command: command not found
# <-- inner
# <-- outer
set -e
outer() {
echo '--> outer'
(inner) || {
exit_code=$?
echo '--> cleanup'
return $exit_code
}
echo '<-- outer'
}
inner() {
set -e
echo '--> inner'
some_failed_command
echo '<-- inner'
}
outer
But ||
operator is needed to prevent returning from the outer function before cleanup. The trick is to run the inner command in background, and then immediately wait for it. The wait
builtin will return the exit code of the inner command, and now you're using ||
after wait
, not the inner function, so set -e
works properly inside the latter:
#!/bin/sh
# prints:
#
# --> outer
# --> inner
# ./so_2.sh: line 27: some_failed_command: command not found
# --> cleanup
set -e
outer() {
echo '--> outer'
inner &
wait $! || {
exit_code=$?
echo '--> cleanup'
return $exit_code
}
echo '<-- outer'
}
inner() {
set -e
echo '--> inner'
some_failed_command
echo '<-- inner'
}
outer
Here is the generic function that builds upon this idea. It should work in all POSIX-compatible shells if you remove local
keywords, i.e. replace all local x=y
with just x=y
:
# [CLEANUP=cleanup_cmd] run cmd [args...]
#
# `cmd` and `args...` A command to run and its arguments.
#
# `cleanup_cmd` A command that is called after cmd has exited,
# and gets passed the same arguments as cmd. Additionally, the
# following environment variables are available to that command:
#
# - `RUN_CMD` contains the `cmd` that was passed to `run`;
# - `RUN_EXIT_CODE` contains the exit code of the command.
#
# If `cleanup_cmd` is set, `run` will return the exit code of that
# command. Otherwise, it will return the exit code of `cmd`.
#
run() {
local cmd="$1"; shift
local exit_code=0
local e_was_set=1; if ! is_shell_attribute_set e; then
set -e
e_was_set=0
fi
"$cmd" "$@" &
wait $! || {
exit_code=$?
}
if [ "$e_was_set" = 0 ] && is_shell_attribute_set e; then
set +e
fi
if [ -n "$CLEANUP" ]; then
RUN_CMD="$cmd" RUN_EXIT_CODE="$exit_code" "$CLEANUP" "$@"
return $?
fi
return $exit_code
}
is_shell_attribute_set() { # attribute, like "x"
case "$-" in
*"$1"*) return 0 ;;
*) return 1 ;;
esac
}
Example of usage:
#!/bin/sh
set -e
# Source the file with the definition of `run` (previous code snippet).
# Alternatively, you may paste that code directly here and comment the next line.
. ./utils.sh
main() {
echo "--> main: $@"
CLEANUP=cleanup run inner "$@"
echo "<-- main"
}
inner() {
echo "--> inner: $@"
sleep 0.5; if [ "$1" = 'fail' ]; then
oh_my_god_look_at_this
fi
echo "<-- inner"
}
cleanup() {
echo "--> cleanup: $@"
echo " RUN_CMD = '$RUN_CMD'"
echo " RUN_EXIT_CODE = $RUN_EXIT_CODE"
sleep 0.3
echo '<-- cleanup'
return $RUN_EXIT_CODE
}
main "$@"
Running the example:
$ ./so_3 fail; echo "exit code: $?"
--> main: fail
--> inner: fail
./so_3: line 15: oh_my_god_look_at_this: command not found
--> cleanup: fail
RUN_CMD = 'inner'
RUN_EXIT_CODE = 127
<-- cleanup
exit code: 127
$ ./so_3 pass; echo "exit code: $?"
--> main: pass
--> inner: pass
<-- inner
--> cleanup: pass
RUN_CMD = 'inner'
RUN_EXIT_CODE = 0
<-- cleanup
<-- main
exit code: 0
The only thing that you need to be aware of when using this method is that all modifications of Shell variables done from the command you pass to run
will not propagate to the calling function, because the command runs in a subshell.
Use
if(isset($_POST['submit'])) // name of your submit button
I assume you are using TCP sockets for the client-server interaction? One way to send different types of data to the server and have it be able to differentiate between the two is to dedicate the first byte (or more if you have more than 256 types of messages) as some kind of identifier. If the first byte is one, then it is message A, if its 2, then its message B. One easy way to send this over the socket is to use DataOutputStream/DataInputStream
:
Client:
Socket socket = ...; // Create and connect the socket
DataOutputStream dOut = new DataOutputStream(socket.getOutputStream());
// Send first message
dOut.writeByte(1);
dOut.writeUTF("This is the first type of message.");
dOut.flush(); // Send off the data
// Send the second message
dOut.writeByte(2);
dOut.writeUTF("This is the second type of message.");
dOut.flush(); // Send off the data
// Send the third message
dOut.writeByte(3);
dOut.writeUTF("This is the third type of message (Part 1).");
dOut.writeUTF("This is the third type of message (Part 2).");
dOut.flush(); // Send off the data
// Send the exit message
dOut.writeByte(-1);
dOut.flush();
dOut.close();
Server:
Socket socket = ... // Set up receive socket
DataInputStream dIn = new DataInputStream(socket.getInputStream());
boolean done = false;
while(!done) {
byte messageType = dIn.readByte();
switch(messageType)
{
case 1: // Type A
System.out.println("Message A: " + dIn.readUTF());
break;
case 2: // Type B
System.out.println("Message B: " + dIn.readUTF());
break;
case 3: // Type C
System.out.println("Message C [1]: " + dIn.readUTF());
System.out.println("Message C [2]: " + dIn.readUTF());
break;
default:
done = true;
}
}
dIn.close();
Obviously, you can send all kinds of data, not just bytes and strings (UTF).
Note that writeUTF
writes a modified UTF-8 format, preceded by a length indicator of an unsigned two byte encoded integer giving you 2^16 - 1 = 65535
bytes to send. This makes it possible for readUTF
to find the end of the encoded string. If you decide on your own record structure then you should make sure that the end and type of the record is either known or detectable.
import java.util.LinkedHashMap;
import java.util.Map.Entry;
public class Sol {
public static void main(String[] args) {
char[] str = "bananas".toCharArray();
LinkedHashMap<Character,Integer> map = new LinkedHashMap<>();
StringBuffer s = new StringBuffer();
for(Character c : str){
if(map.containsKey(c))
map.put(c, map.get(c)+1);
else
map.put(c, 1);
}
for(Entry<Character,Integer> entry : map.entrySet()){
s.append(entry.getKey());
}
System.out.println(s);
}
}
You don't need to use JsonConverterAttribute
, keep your model clean, also use CustomCreationConverter
, the code is simpler:
public class SampleConverter : CustomCreationConverter<ISample>
{
public override ISample Create(Type objectType)
{
return new Sample();
}
}
Then:
var sz = JsonConvert.SerializeObject( sampleGroupInstance );
JsonConvert.DeserializeObject<SampleGroup>( sz, new SampleConverter());
Documentation: Deserialize with CustomCreationConverter
You can change project facet from Project --> Properties --> Project Facet --> Java --> {required JDK version}
Since version 6.0.24, Tomcat ships with a memory leak detection feature, which in turn can lead to this kind of warning messages when there's a JDBC 4.0 compatible driver in the webapp's /WEB-INF/lib
which auto-registers itself during webapp's startup using the ServiceLoader
API, but which did not auto-deregister itself during webapp's shutdown. This message is purely informal, Tomcat has already taken the memory leak prevention action accordingly.
What can you do?
Ignore those warnings. Tomcat is doing its job right. The actual bug is in someone else's code (the JDBC driver in question), not in yours. Be happy that Tomcat did its job properly and wait until the JDBC driver vendor get it fixed so that you can upgrade the driver. On the other hand, you aren't supposed to drop a JDBC driver in webapp's /WEB-INF/lib
, but only in server's /lib
. If you still keep it in webapp's /WEB-INF/lib
, then you should manually register and deregister it using a ServletContextListener
.
Downgrade to Tomcat 6.0.23 or older so that you will not be bothered with those warnings. But it will silently keep leaking memory. Not sure if that's good to know after all. Those kind of memory leaks are one of the major causes behind OutOfMemoryError
issues during Tomcat hotdeployments.
Move the JDBC driver to Tomcat's /lib
folder and have a connection pooled datasource to manage the driver. Note that Tomcat's builtin DBCP does not deregister drivers properly on close. See also bug DBCP-322 which is closed as WONTFIX. You would rather like to replace DBCP by another connection pool which is doing its job better then DBCP. For example HikariCP or perhaps Tomcat JDBC Pool.
If using react:
import Moment from 'react-moment';
Moment.globalFormat = 'D MMM YYYY';
then:
<td><Moment unix>{1370001284}</Moment></td>
It seems there's no choice but to put in the max value manually. I was hoping there was some type of overload where you didn't need to specify one.
[Range(typeof(decimal), "0", "79228162514264337593543950335")]
public decimal Price { get; set; }
Please see my answer here. As dreamwerx.myopenid.com points out, it is possible to do this with SimpleXML, but the DOM extension would be the better and more flexible way. Additionally there is a third way: using XMLWriter. It's much more simple to use than the DOM and therefore it's my preferred way of writing XML documents from scratch.
$w=new XMLWriter();
$w->openMemory();
$w->startDocument('1.0','UTF-8');
$w->startElement("root");
$w->writeAttribute("ah", "OK");
$w->text('Wow, it works!');
$w->endElement();
echo htmlentities($w->outputMemory(true));
By the way: DOM stands for Document Object Model; this is the standardized API into XML documents.
According to Vlad Mihalcea (see https://vladmihalcea.com/hibernate-facts-the-importance-of-fetch-strategy/):
JPQL queries may override the default fetching strategy. If we don’t explicitly declare what we want to fetch using inner or left join fetch directives, the default select fetch policy is applied.
It seems that JPQL query might override your declared fetching strategy so you'll have to use join fetch
in order to eagerly load some referenced entity or simply load by id with EntityManager (which will obey your fetching strategy but might not be a solution for your use case).
All pages of the resulting document will be scaled to that size. The resulting file size is nearly identical to the original PDF, so I conclude, that image resolutions/compressions are not changed.
Hints:
I am not sure whether the "Export as PDF" menu item is available by default or only if Adobe Acrobat is installed.
My first trial was to use Preview App and print (!) into a new PDF, but this leads to additional margins around the page content.
Based on Crescent Fresh answer
if you want to detect links with http:// OR without http:// and by www. you can use the following
function urlify(text) {
var urlRegex = /(((https?:\/\/)|(www\.))[^\s]+)/g;
//var urlRegex = /(https?:\/\/[^\s]+)/g;
return text.replace(urlRegex, function(url,b,c) {
var url2 = (c == 'www.') ? 'http://' +url : url;
return '<a href="' +url2+ '" target="_blank">' + url + '</a>';
})
}
Here I duplicate the answer in Hidden features of HTML:
Using a protocol-independent absolute path:
<img src="//domain.com/img/logo.png"/>
If the browser is viewing an page in SSL through HTTPS, then it'll request that asset with the https protocol, otherwise it'll request it with HTTP.
This prevents that awful "This Page Contains Both Secure and Non-Secure Items" error message in IE, keeping all your asset requests within the same protocol.
Caveat: When used on a
<link>
or @import for a stylesheet, IE7 and IE8 download the file twice. All other uses, however, are just fine.
Simply do:
mkdir /path/to/your/potentially/existing/folder
mkdir will throw an error if the folder already exists. To ignore the errors write:
mkdir -p /path/to/your/potentially/existing/folder
No need to do any checking or anything like that.
For reference:
-p, --parents no error if existing, make parent directories as needed
http://man7.org/linux/man-pages/man1/mkdir.1.html
Write your own:
template<class T>
bool checkElementIsInSet(const T& elem, const std::set<T>& container)
{
return container.find(elem) != container.end();
}
My preference, and I have no idea why this isn't already in jQuery:
$.fn.orElse = function(elseFunction) {
if (!this.length) {
elseFunction();
}
};
Used like this:
$('#notAnElement').each(function () {
alert("Wrong, it is an element")
}).orElse(function() {
alert("Yup, it's not an element")
});
Or, as it looks in CoffeeScript:
$('#notAnElement').each ->
alert "Wrong, it is an element"; return
.orElse ->
alert "Yup, it's not an element"
Here i'm adding sample code for http post print response and parsing as JSON if possible, it will handle everything async so your GUI will be refreshing just fine and will not freeze at all - which is important to notice.
//POST DATA
NSString *theBody = [NSString stringWithFormat:@"parameter=%@",YOUR_VAR_HERE];
NSData *bodyData = [theBody dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
//URL CONFIG
NSString *serverURL = @"https://your-website-here.com";
NSString *downloadUrl = [NSString stringWithFormat:@"%@/your-friendly-url-here/json",serverURL];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString: downloadUrl]];
//POST DATA SETUP
[request setHTTPMethod:@"POST"];
[request setHTTPBody:bodyData];
//DEBUG MESSAGE
NSLog(@"Trying to call ws %@",downloadUrl);
//EXEC CALL
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if (error) {
NSLog(@"Download Error:%@",error.description);
}
if (data) {
//
// THIS CODE IS FOR PRINTING THE RESPONSE
//
NSString *returnString = [[NSString alloc] initWithData:data encoding: NSUTF8StringEncoding];
NSLog(@"Response:%@",returnString);
//PARSE JSON RESPONSE
NSDictionary *json_response = [NSJSONSerialization JSONObjectWithData:data
options:0
error:NULL];
if ( json_response ) {
if ( [json_response isKindOfClass:[NSDictionary class]] ) {
// do dictionary things
for ( NSString *key in [json_response allKeys] ) {
NSLog(@"%@: %@", key, json_response[key]);
}
}
else if ( [json_response isKindOfClass:[NSArray class]] ) {
NSLog(@"%@",json_response);
}
}
else {
NSLog(@"Error serializing JSON: %@", error);
NSLog(@"RAW RESPONSE: %@",data);
NSString *returnString2 = [[NSString alloc] initWithData:data encoding: NSUTF8StringEncoding];
NSLog(@"Response:%@",returnString2);
}
}
}];
Hope this helps!
Another recursive solution, that works for arrays/lists and objects, or a mixture of both:
function deepSearchByKey(object, originalKey, matches = []) {
if(object != null) {
if(Array.isArray(object)) {
for(let arrayItem of object) {
deepSearchByKey(arrayItem, originalKey, matches);
}
} else if(typeof object == 'object') {
for(let key of Object.keys(object)) {
if(key == originalKey) {
matches.push(object);
} else {
deepSearchByKey(object[key], originalKey, matches);
}
}
}
}
return matches;
}
usage:
let result = deepSearchByKey(arrayOrObject, 'key'); // returns an array with the objects containing the key
You're missing semi-colons after your javascript lines. Also, window.location
should have .href
or .replace
etc to redirect - See this post for more information.
echo '<script type="text/javascript">';
echo 'alert("review your answer");';
echo 'window.location.href = "index.php";';
echo '</script>';
For clarity, try leaving PHP tags for this:
?>
<script type="text/javascript">
alert("review your answer");
window.location.href = "index.php";
</script>
<?php
NOTE: semi colons on seperate lines are optional, but encouraged - however as in the comments below, PHP won't break lines in the first example here but will in the second, so semi-colons are required in the first example.
Here is the link for installation details: http://php.net/manual/en/mysqli.installation.php
If you are using Windows or Linux:
- The MySQLi extension is automatically installed in most cases, when PHP & MySQL package is installed.
I had similar problem with margin collapse because of parent having position
set to relative. Here are list of commands you can use to disable margin collapsing.
Just try to assign any parent-fix*
class to div.container
element, or any class children-fix*
to div.margin
. Pick the one that fits your needs best.
When
div.absolute
with red background will be positioned at the very top of the page.div.absolute
will be positioned at the same Y coordinate as div.margin
html, body { margin: 0; padding: 0; }_x000D_
_x000D_
.container {_x000D_
width: 100%;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.absolute {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 50px;_x000D_
right: 50px;_x000D_
height: 100px;_x000D_
border: 5px solid #F00;_x000D_
background-color: rgba(255, 0, 0, 0.5);_x000D_
}_x000D_
_x000D_
.margin {_x000D_
width: 100%;_x000D_
height: 20px;_x000D_
background-color: #444;_x000D_
margin-top: 50px;_x000D_
color: #FFF;_x000D_
}_x000D_
_x000D_
/* Here are some examples on how to disable margin _x000D_
collapsing from within parent (.container) */_x000D_
.parent-fix1 { padding-top: 1px; }_x000D_
.parent-fix2 { border: 1px solid rgba(0,0,0, 0);}_x000D_
.parent-fix3 { overflow: auto;}_x000D_
.parent-fix4 { float: left;}_x000D_
.parent-fix5 { display: inline-block; }_x000D_
.parent-fix6 { position: absolute; }_x000D_
.parent-fix7 { display: flex; }_x000D_
.parent-fix8 { -webkit-margin-collapse: separate; }_x000D_
.parent-fix9:before { content: ' '; display: table; }_x000D_
_x000D_
/* Here are some examples on how to disable margin _x000D_
collapsing from within children (.margin) */_x000D_
.children-fix1 { float: left; }_x000D_
.children-fix2 { display: inline-block; }
_x000D_
<div class="container parent-fix1">_x000D_
<div class="margin children-fix">margin</div>_x000D_
<div class="absolute"></div>_x000D_
</div>
_x000D_
Here is jsFiddle with example you can edit
SELECT tab.*,
row_number() OVER () as rnum
FROM tab;
Here's the relevant section in the docs.
P.S. This, in fact, fully matches the answer in the referenced question.
This should work
<a href="#" onclick="function hi(){alert('Hi!')};hi()">click</a>
You may inline any javascript inside the onclick as if you were assigning the method through javascript. I think is just a matter of making code cleaner keeping your js inside a script block
call msbuild.bat
call unit-tests.bat
call deploy.bat
If you already have logging enabled and you still get this error on Windows 7 64 bit, try this in IIS 7.5:
Create a new application pool
Go to the Advanced Settings of this application pool
Set the Enable 32-Bit Application to True
Point your web application to use this new pool
Set the below values in php.ini
file (C:\xampp\php\
)
max_execution_time = 0
max_input_time=259200
memory_limit = 1000M
upload_max_filesize = 750M
post_max_size = 750M
Open config.default file(C:\xampp\phpMyAdmin\libraries\config.default) and set the value as below:
Then open the config.inc file(C:\xampp\phpMyAdmin\config.inc). and paste below line:
$cfg['UploadDir'] = 'upload';
Go to phpMyAdmin(C:\xampp\phpMyAdmin
) folder and create folder called upload
and paste your database to newly created upload folder (don't need to zip)
Lastly, go to phpMyAdmin and upload your db (Please select your database in drop-down)
*It takes lot of time.In my db(266mb) takes 50min to upload. So be patient ! *
The virtual
keyword in C# enables a method or property to be overridden by child classes. For more information please refer to the MSDN documentation on the 'virtual' keyword
UPDATE: This doesn't answer the question as currently asked, but I'll leave it here for anyone looking for a simple answer to the original, non-descriptive question asked.
If you have a self-signed certificate generated by makecert.exe
on a Windows machine, you will get two files: cert.pvk
and cert.cer
. These can be converted to a pfx using pvk2pfx
pvk2pfx
is found in the same location as makecert
(e.g. C:\Program Files (x86)\Windows Kits\10\bin\x86
or similar)
pvk2pfx -pvk cert.pvk -spc cert.cer -pfx cert.pfx
#testDiv{
/* set green border independently on each side */
border-left: solid green 2px;
border-right: solid green 2px;
border-bottom: solid green 2px;
border-top: solid green 2px;
}
If you care about accuracy for small angles, you want to use this:
angle = 2*atan2(|| ||b||a - ||a||b ||, || ||b||a + ||a||b ||)
Where "||" means absolute value, AKA "length of the vector". See https://math.stackexchange.com/questions/1143354/numerically-stable-method-for-angle-between-3d-vectors/1782769
However, that has the downside that in two dimensions, it loses the sign of the angle.
If you're going to downvote this answer
I wrote this a few months prior to the inclusion of git-credential in TortoiseGit. Given the number of large security holes found in the last few years and how much I've learned about network security, I would HIGHLY recommend you use a unique (minimum 2048-bit RSA) SSH key for every server you connect to.
The below syntax is still available, though there are far better tools available today like git-credential
that the accepted answer tells you how to use. Do that instead.
Try changing the remote URL to https://[email protected]/username/repo.git
where username
is your github username and repo
is the name of your repository.
If you also want to store your password (not recommended), the URL would look like this: https://username:[email protected]/username/repo.git
.
There's also another way to store the password from this github help article: https://help.github.com/articles/set-up-git#password-caching
c = np.array([[1,2,3],[4,5,6]])
list(c.flatten())
I had a similar problem, when I wanted to create a command, \dx
, to abbreviate \;\mathrm{d}x
(i.e. put an extra space before the differential of the integral and have the "d" upright as well). But then I also wanted to make it flexible enough to include the variable of integration as an optional argument. I put the following code in the preamble.
\usepackage{ifthen}
\newcommand{\dx}[1][]{%
\ifthenelse{ \equal{#1}{} }
{\ensuremath{\;\mathrm{d}x}}
{\ensuremath{\;\mathrm{d}#1}}
}
Then
\begin{document}
$$\int x\dx$$
$$\int t\dx[t]$$
\end{document}
=SUMPRODUCT( (MONTH($A$2:$A$6)=1) * ($B$2:$B$6) )
Explanation:
(MONTH($A$2:$A$6)=1)
creates an array of 1 and 0, it's 1 when the
month is january, thus in your example the returned array would be [1, 1, 1, 0, 0]
SUMPRODUCT
first multiplies each value of the array created in the above step with values of the array ($B$2:$B$6)
, then it sums them. Hence in
your example it does this: (1 * 430) + (1 * 96) + (1 * 440) + (0 * 72.10) + (0 * 72.30)
This works also in OpenOffice and Google Spreadsheets
I use a batch script to compile and run C#:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc /out:%1 %2
@echo off
if errorlevel 1 (
pause
exit
)
start %1 %1
I call it like this:
C:\bin\csc.bat "C:\code\MyProgram.exe" "C:\code\MyProgram.cs"
I also have a shortcut in Notepad++, which you can define by going to Run > Run...:
C:\bin\csc.bat "$(CURRENT_DIRECTORY)\$(NAME_PART).exe" "$(FULL_CURRENT_PATH)"
I assigned this shortcut to my F5 key for maximum laziness.
It looks like the 'flush' answer will work for some, but not all cases. I needed not just to flush the values in the database, but to recreate the tables properly. I'm not using migrations yet (early days) so I really needed to drop all the tables.
Two ways I've found to drop all tables, both require something other than core django.
If you're on Heroku, drop all the tables with pg:reset:
heroku pg:reset DATABASE_URL
heroku run python manage.py syncdb
If you can install Django Extensions, it has a way to do a complete reset:
python ./manage.py reset_db --router=default
i use the following java 8 solution:
public static List<String> splitString(final String string, final int chunkSize) {
final int numberOfChunks = (string.length() + chunkSize - 1) / chunkSize;
return IntStream.range(0, numberOfChunks)
.mapToObj(index -> string.substring(index * chunkSize, Math.min((index + 1) * chunkSize, string.length())))
.collect(toList());
}
if you are expecting them in a certain order, you can just use diff
diff file1 file2 | grep ">"
Starting with Kotlin 1.1.2, the dependencies with group org.jetbrains.kotlin
are by default resolved with the version taken from the applied plugin. You can provide the version manually using the full dependency notation like:
compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
If you're targeting JDK 7 or JDK 8, you can use extended versions of the Kotlin standard library which contain additional extension functions for APIs added in new JDK versions. Instead of kotlin-stdlib, use one of the following dependencies:
compile "org.jetbrains.kotlin:kotlin-stdlib-jdk7"
compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
The minimum width that your screen can display is 1 pixel. So its impossible to display less then 1px. 1 pixels can only have 1 color and cannot be split up.
I'm pretty sure the classpath and the shared library search path have little to do with each other. According to The JNI Book (which admittedly is old), on Windows if you do not use the java.library.path
system property, the DLL needs to be in the current working directory or in a directory listed in the Windows PATH
environment variable.
Update:
Looks like Oracle has removed the PDF from its website. I've updated the link above to point to an instance of the PDF living at University of Texas - Arlington.
Also, you can also read Oracle's HTML version of the JNI Specification. That lives in the Java 8 section of the Java website and so hopefully will be around for a while.
Update 2:
At least in Java 8 (I haven't checked earlier versions) you can do:
java -XshowSettings:properties -version
to find the shared library search path. Look for the value of the java.library.path
property in that output.
The other answers are fine, but this is a little cleaner, in that it only gives the values like you would get from a DISTINCT query, without any cruft from Django.
>>> set(ProductOrder.objects.values_list('category', flat=True))
{u'category1', u'category2', u'category3', u'category4'}
or
>>> list(set(ProductOrder.objects.values_list('category', flat=True)))
[u'category1', u'category2', u'category3', u'category4']
And, it works without PostgreSQL.
This is less efficient than using a .distinct(), presuming that DISTINCT in your database is faster than a python set
, but it's great for noodling around the shell.