You should not try to use perfmon, task manager or any tool like that to determine memory leaks. They are good for identifying trends, but not much else. The numbers they report in absolute terms are too vague and aggregated to be useful for a specific task such as memory leak detection.
A previous reply to this question has given a great explanation of what the various types are.
You ask about a tool recommendation: I recommend Memory Validator. Capable of monitoring applications that make billions of memory allocations.
http://www.softwareverify.com/cpp/memory/index.html
Disclaimer: I designed Memory Validator.
The original order is in fact backwards. Certs should be followed by the issuing cert until the last cert is issued by a known root per IETF's RFC 5246 Section 7.4.2
This is a sequence (chain) of certificates. The sender's certificate MUST come first in the list. Each following certificate MUST directly certify the one preceding it.
See also SSL: error:0B080074:x509 certificate routines:X509_check_private_key:key values mismatch for troubleshooting techniques.
But I still don't know why they wrote the spec so that the order matters.
Least amount of markup possible (you only need one span):
<p>This text is left. <span>This text is right.</span></p>
How you want to achieve the left/right styles is up to you, but I would recommend an external style on an ID or a class.
The full HTML:
<p class="split-para">This text is left. <span>This text is right.</span></p>
And the CSS:
.split-para { display:block;margin:10px;}
.split-para span { display:block;float:right;width:50%;margin-left:10px;}
I just had a very similar issues with gradle builds / adding .jar library. I got it working by a combination of :
compile fileTree(dir: 'libs', include: '*.jar')}
BUT more importantly and annoyingly, only hours after I get it working, Android Studio have just released 0.3.7, which claims to have solved a lot of gradle issues such as adding .jar libraries
http://tools.android.com/recent
Hope this helps people!
For those, who still use SupportLibrary < 25.3.0
I'm not sure whether this is a complete answer to this question, but my problem was very similar - I had to process back
button press and bring user to previous tab where he was. So, maybe my solution will be useful for somebody:
private void updateNavigationBarState(int actionId){
Menu menu = bottomNavigationView.getMenu();
for (int i = 0, size = menu.size(); i < size; i++) {
MenuItem item = menu.getItem(i);
item.setChecked(item.getItemId() == actionId);
}
}
Please, keep in mind that if user press other navigation tab BottomNavigationView
won't clear currently selected item, so you need to call this method in your onNavigationItemSelected
after processing of navigation action:
@Override
public boolean onNavigationItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.some_id_1:
// process action
break;
case R.id.some_id_2:
// process action
break;
...
default:
return false;
}
updateNavigationBarState(item.getItemId());
return true;
}
Regarding the saving of instance state I think you could play with same action id
of navigation view and find suitable solution.
Try this
SELECT *
FROM people P
where P.IDNo in (SELECT DISTINCT IDNo
FROM people)
I had to mark the "src" folder as "Sources". After restarting IntelliJ and rebuilding the project I could run the project without further issues (see screenshot). Edit: You can access the "Project Structure" tab via File->Project Structure or by pressing Ctrl+Shift+Alt+S.
Difference b/w scp and rsync on different parameter
scp
: scp is relatively less optimise and speed
rsync
: rsync is comparatively more optimise and speed
scp
: scp command line tool cannot resume aborted downloads from lost network connections
rsync
: If the above rsync session itself gets interrupted, you can resume it as many time as you want by typing the same command. rsync will automatically restart the transfer where it left off.
http://ask.xmodulo.com/resume-large-scp-file-transfer-linux.html
$ scp source_file_path destination_file_path
$ cd /path/to/directory/of/partially_downloaded_file
$ rsync -P --rsh=ssh [email protected]:bigdata.tgz ./bigdata.tgz
The -P
option is the same as --partial --progress
, allowing rsync to work with partially downloaded files. The --rsh=ssh
option tells rsync to use ssh as a remote shell.
scp is more secure. You have to use rsync --rsh=ssh
to make it as secure as scp.
man document to know more :
Based on my experiments I found out that mysql insert statement with multiple value rows in single transaction is the fastest one.
However, if the data is too much then mysql's max_allowed_packet
setting might restrict the single transaction insert with multiple value rows. Hence, following functions will fail when there is data greater than mysql's max_allowed_packet
size:
singleTransactionInsertWithRollback
singleTransactionInsertWithPlaceholders
singleTransactionInsert
The most successful one in insert huge data scenario is transactionSpeed
method, but it consumes time more the above mentioned methods. So, to handle this problem you can either split your data into smaller chunks and call single transaction insert multiple times or give up speed of execution by using transactionSpeed
method.
Here's my research
<?php
class SpeedTestClass
{
private $data;
private $pdo;
public function __construct()
{
$this->data = [];
$this->pdo = new \PDO('mysql:dbname=test_data', 'admin', 'admin');
if (!$this->pdo) {
die('Failed to connect to database');
}
}
public function createData()
{
$prefix = 'test';
$postfix = 'unicourt.com';
$salutations = ['Mr.', 'Ms.', 'Dr.', 'Mrs.'];
$csv[] = ['Salutation', 'First Name', 'Last Name', 'Email Address'];
for ($i = 0; $i < 100000; ++$i) {
$csv[] = [
$salutations[$i % \count($salutations)],
$prefix.$i,
$prefix.$i,
$prefix.$i.'@'.$postfix,
];
}
$this->data = $csv;
}
public function truncateTable()
{
$this->pdo->query('TRUNCATE TABLE `name`');
}
public function transactionSpeed()
{
$timer1 = microtime(true);
$this->pdo->beginTransaction();
$sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES (:first_name, :last_name)';
$sth = $this->pdo->prepare($sql);
foreach (\array_slice($this->data, 1) as $values) {
$sth->execute([
':first_name' => $values[1],
':last_name' => $values[2],
]);
}
// $timer2 = microtime(true);
// echo 'Prepare Time: '.($timer2 - $timer1).PHP_EOL;
// $timer3 = microtime(true);
if (!$this->pdo->commit()) {
echo "Commit failed\n";
}
$timer4 = microtime(true);
// echo 'Commit Time: '.($timer4 - $timer3).PHP_EOL;
return $timer4 - $timer1;
}
public function autoCommitSpeed()
{
$timer1 = microtime(true);
$sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES (:first_name, :last_name)';
$sth = $this->pdo->prepare($sql);
foreach (\array_slice($this->data, 1) as $values) {
$sth->execute([
':first_name' => $values[1],
':last_name' => $values[2],
]);
}
$timer2 = microtime(true);
return $timer2 - $timer1;
}
public function noBindAutoCommitSpeed()
{
$timer1 = microtime(true);
foreach (\array_slice($this->data, 1) as $values) {
$sth = $this->pdo->prepare("INSERT INTO `name` (`first_name`, `last_name`) VALUES ('{$values[1]}', '{$values[2]}')");
$sth->execute();
}
$timer2 = microtime(true);
return $timer2 - $timer1;
}
public function singleTransactionInsert()
{
$timer1 = microtime(true);
foreach (\array_slice($this->data, 1) as $values) {
$arr[] = "('{$values[1]}', '{$values[2]}')";
}
$sth = $this->pdo->prepare('INSERT INTO `name` (`first_name`, `last_name`) VALUES '.implode(', ', $arr));
$sth->execute();
$timer2 = microtime(true);
return $timer2 - $timer1;
}
public function singleTransactionInsertWithPlaceholders()
{
$placeholders = [];
$timer1 = microtime(true);
$sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES ';
foreach (\array_slice($this->data, 1) as $values) {
$placeholders[] = '(?, ?)';
$arr[] = $values[1];
$arr[] = $values[2];
}
$sql .= implode(', ', $placeholders);
$sth = $this->pdo->prepare($sql);
$sth->execute($arr);
$timer2 = microtime(true);
return $timer2 - $timer1;
}
public function singleTransactionInsertWithRollback()
{
$placeholders = [];
$timer1 = microtime(true);
$sql = 'INSERT INTO `name` (`first_name`, `last_name`) VALUES ';
foreach (\array_slice($this->data, 1) as $values) {
$placeholders[] = '(?, ?)';
$arr[] = $values[1];
$arr[] = $values[2];
}
$sql .= implode(', ', $placeholders);
$this->pdo->beginTransaction();
$sth = $this->pdo->prepare($sql);
$sth->execute($arr);
$this->pdo->commit();
$timer2 = microtime(true);
return $timer2 - $timer1;
}
}
$s = new SpeedTestClass();
$s->createData();
$s->truncateTable();
echo "Time Spent for singleTransactionInsertWithRollback: {$s->singleTransactionInsertWithRollback()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for single Transaction Insert: {$s->singleTransactionInsert()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for single Transaction Insert With Placeholders: {$s->singleTransactionInsertWithPlaceholders()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for transaction: {$s->transactionSpeed()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for AutoCommit: {$s->noBindAutoCommitSpeed()}".PHP_EOL;
$s->truncateTable();
echo "Time Spent for autocommit with bind: {$s->autoCommitSpeed()}".PHP_EOL;
$s->truncateTable();
The results for 100,000 entries for a table containing only two columns is as below
$ php data.php
Time Spent for singleTransactionInsertWithRollback: 0.75147604942322
Time Spent for single Transaction Insert: 0.67445182800293
Time Spent for single Transaction Insert With Placeholders: 0.71131205558777
Time Spent for transaction: 8.0056409835815
Time Spent for AutoCommit: 35.4979159832
Time Spent for autocommit with bind: 33.303519010544
After you correct the possible dmp file problem, this is a way to ensure that the schema is remapped and imported appropriately. This will also ensure that the tablespace will change also, if needed:
impdp system/<password> SCHEMAS=user1 remap_schema=user1:user2 \
remap_tablespace=user1:user2 directory=EXPORTDIR \
dumpfile=user1.dmp logfile=E:\Data\user1.log
EXPORTDIR must be defined in oracle as a directory as the system user
create or replace directory EXPORTDIR as 'E:\Data';
grant read, write on directory EXPORTDIR to user2;
In order to calculate the difference you have to put the +
operator,
that way typescript
converts the dates to numbers.
+new Date()- +new Date("2013-02-20T12:01:04.753Z")
From there you can make a formula to convert the difference to minutes
or hours
.
I currently use Corona for business applications with great success. As far as games go, I'm under the impression that it doesn't provide the performance that some of the other cross-platform development engines do. It is worth noting that Carlos (founder of Ansca Mobile/Corona SDK) has started another company on a competing engine; Lanica Platino Engine for Appcelerator Titanium. While I haven't worked with this personally, it does look promising. Keep in mind, however, that it comes with a $999/yr price tag.
All that said, I have been researching Moai for a little while now (since I am already familiar with Lua syntax) and it does seem promising. The fact that it can compile for multiple platforms, not limited to mobile environments, is appealing.
Multimedia Fusion 2 is also a worth contender, considering the complexity of games produced and the performance realized from them. Vincere Totus Astrum (http://gamesare.com) comes to mind.
Try format
function:
> xx = 100000000000
> xx
[1] 1e+11
> format(xx, scientific=F)
[1] "100000000000"
I have simplified it : I have edited jackjoe's answer. The height auto etc not required I think.
CSS:
#container {
position: relative;
margin:0 auto;
width: 1000px;
background: #C63;
padding: 10px;
}
#leftCol {
background: #e8f6fe;
width: auto;
}
#rightCol {
float:right;
width:30%;
background: #aafed6;
}
.box {
position:relative;
clear:both;
background:#F39;
}
</style>
HTML:
<div id="container">
<div id="rightCol">
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
</div>
<div id="leftCol">
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.
</div>
</div>
<div class="box">
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
<p>Lorem ipsum dolor sit amet,consectetuer adipiscing elit. Phasellus varius eleifend. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.Phasellus varius eleifend.</p>
</div>
As well as the previous answers are you could always use the Pull attrib as well:
<ol class="row" id="possibilities">
<li class="span6">
<div class="row">
<div class="span3">
<p>some text here</p>
<p>Text Here too</p>
</div>
<figure class="span3 pull-right"><img src="img/screenshots/options.png" alt="Some text" /></figure>
</div>
</li>
<li class="span6">
<div class="row">
<figure class="span3"><img src="img/qrcode.png" alt="Some text" /></figure>
<div class="span3">
<p>Some text</p>
<p>Some text here too.</p>
</div>
</div>
</li>
Well the thing is that you probably actually don't want the test to run indefinitely. You just want to wait a longer amount of time before the library decides the element doesn't exist. In that case, the most elegant solution is to use implicit wait, which is designed for just that:
driver.manage().timeouts().implicitlyWait( ... )
this works for me, so try it :
Microsoft.Office.Interop.Excel.Range rng =(Microsoft.Office.Interop.Excel.Range)XcelApp.Cells[1, i];
rng.Font.Bold = true;
rng.Interior.Color =System.Drawing.ColorTranslator.ToOle(System.Drawing.Color.Yellow);
rng.BorderAround();
/*I am working with turbo c++ compiler so namespace std is not used by me.Also i am familiar with turbo.*/
#include<iostream.h>
#include<iomanip.h>
#include<conio.h>
#include<fstream.h> //required while dealing with files
void main ()
{
clrscr();
ofstream fout; //object created **fout**
fout.open("your desired file name + extension");
fout<<"contents to be written inside the file"<<endl;
fout.close();
getch();
}
After running the program the file will be created inside the bin folder in your compiler folder itself.
In the special case: "All elements of List1 goes to a new List2": (e.g. a string list)
List<string> list2 = new List<string>(list1);
In this case, list2 is generated with all elements from list1.
Update: Angular 8 finally got method to clear the Array FormArray.clear()
If you got only one column in the range to clean, just add "(1)" to the end. It indicates in wich column of the range Excel will remove the duplicates. Something like:
Sub norepeat()
Range("C8:C16").RemoveDuplicates (1)
End Sub
Regards
@Amirali
console.log(document.getElementById("SAVE_FOOTER"));
document.getElementById("SAVE_FOOTER").attribute("onclick","console.log('c')");
throws:
Uncaught TypeError: document.getElementById(...).attribute is not a function
in chrome.
Element exists and is dumped in console;
This is the complete way to omit unneeded redirects, too ;)
These rules are intended to be used in .htaccess files, as a RewriteRule in a *:80 VirtualHost entry needs no Conditions.
RewriteEngine on
RewriteCond %{HTTPS} off [OR]
RewriteCond %{HTTP:X-Forwarded-Proto} !https
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [NC,R=301,L]
Eplanations:
RewriteEngine on
==> enable the engine at all
RewriteCond %{HTTPS} off [OR]
==> match on non-https connections, or (not setting [OR] would cause an implicit AND !)
RewriteCond %{HTTP:X-Forwarded-Proto} !https
==> match on forwarded connections (proxy, loadbalancer, etc.) without https
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [NC,R=301,L]
==> if one of both Conditions match, do the rewrite of the whole URL, sending a 301 to have this 'learned' by the client (some do, some don't) and the L for the last rule.
I see all the answers mention when object slicing happens when data members are sliced. Here I give an example that the methods are not overridden:
class A{
public:
virtual void Say(){
std::cout<<"I am A"<<std::endl;
}
};
class B: public A{
public:
void Say() override{
std::cout<<"I am B"<<std::endl;
}
};
int main(){
B b;
A a1;
A a2=b;
b.Say(); // I am B
a1.Say(); // I am A
a2.Say(); // I am A why???
}
B (object b) is derived from A (object a1 and a2). b and a1, as we expect, call their member function. But from polymorphism viewpoint we don’t expect a2, which is assigned by b, to not be overridden. Basically, a2 only saves A-class part of b and that is object slicing in C++.
To solve this problem, a reference or pointer should be used
A& a2=b;
a2.Say(); // I am B
or
A* a2 = &b;
a2->Say(); // I am B
For more details see my post
"Assuming that you have nodejs installed",
mini-http is a pretty easy command-line tool to create http server,
install the package globally npm install mini-http -g
then using your cmd (terminal) run mini-http -p=3000
in your project directory
And boom! you created a server on port 3000 now go check http://localhost:3000
Note: specifying a port is not required you can simply run mini-http
or mh
to start the server
If you are loading the image via AJAX you could use a callback to check if the image is loaded and do the hiding and src attribute assigning. Something like this:
$.ajax({
url: [image source],
success: function() {
// Do the hiding here and the attribute setting
}
});
For more reading refer to this JQuery AJAX
You can do something like this
Session session = app.factory.openSession();
CriteriaBuilder builder = session.getCriteriaBuilder();
CriteriaQuery query = builder.createQuery();
Root<Users> root = query.from(Users.class);
query.select(root.get("firstname"));
String name = session.createQuery(query).getSingleResult();
where you can change "firstname" with the name of the column you want.
Another Alternative for those who are probing around and/or in interactive mode:
$Error[0].Exception.LoaderExceptions
Note: [0] grabs the most recent Error from the stack
event.target
to get the element
window.onclick = e => {
console.log(e.target); // to get the element
console.log(e.target.tagName); // to get the element tag name alone
}
to get the text from clicked element
window.onclick = e => {
console.log(e.target.innerText);
}
So many ways to do it.
From Workbench: File > Run SQL Script -- then follow prompts
From Windows Command Line:
Option 1: mysql -u usr -p
mysql> source file_path.sql
Option 2: mysql -u usr -p '-e source file_path.sql'
Option 3: mysql -u usr -p < file_path.sql
Option 4: put multiple 'source' statements inside of file_path.sql (I do this to drop and recreate schemas/databases which requires multiple files to be run)
mysql -u usr -p < file_path.sql
If you get errors from the command line, make sure you have previously run
cd {!!>>mysqld.exe home directory here<<!!}
mysqld.exe --initialize
This must be run from within the mysqld.exe directory, hence the CD.
Hope this is helpful and not just redundant.
I Used rowCallBack datatable property it is working fine. PFB :-
"rowCallback": function (row, data, index) {
if ((data[colmindx] == 'colm_value')) {
$(row).addClass('OwnClassName');
}
else if ((data[colmindx] == 'colm_value')) {
$(row).addClass('OwnClassStyle');
}
}
If you need some advanced explanation you need read both specifications :
If you need a clear explanation of flow differences , this could be help you:
OAuth 1.0 Flow
OAuth 2.0 Flow
You can use the CSS property page-break-before
(or page-break-after
). Just set page-break-before: always
on those block-level elements (e.g., heading, div
, p
, or table
elements) that should start on a new line.
For example, to cause a line break before any 2nd level heading and before any element in class newpage
(e.g., <div class=newpage>
...), you would use
h2, .newpage { page-break-before: always }
Yes. If memory serves me, that should work. Our you could use:
DELETE FROM table WHERE id <> 2
For Windows 7, I just rename the python.exe
from the Python 3 folder to python3.exe
and add the path into the environment variables. Using that, I can execute python test_script.py
and the script runs with Python 2.7 and when I do python3 test_script.py
, it runs the script in Python 3.
To add Python 3
to the environment variables, follow these steps -
Properties
.Advanced System Settings
.Environment Variables
and edit PATH
and add the path to your Python 3 installation directory.For example,
To return to your Activity
, you will need to listen to TelephonyStates
. On that listener
you can send an Intent
to re-open your Activity
once the phone is idle.
At least thats how I will do it.
Oxi's answer is just wrong.¹
What you want is:
var container = document.body,
element = document.getElementById('ElementID');
container.scrollTop = element.offsetTop;
Working example:
(function (){
var i = 20, l = 20, html = '';
while (i--){
html += '<div id="DIV' +(l-i)+ '">DIV ' +(l-i)+ '</div>';
html += '<a onclick="document.body.scrollTop=document.getElementById(\'DIV' +i+ '\').offsetTop">';
html += '[ Scroll to #DIV' +i+ ' ]</a>';
html += '<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />';
}
document.write( html );
})();
¹ I haven't got enough reputation to comment on his answer
You can achieve this $(identifier).data('id')
using jquery,
<script type="text/javascript">
function goDoSomething(identifier){
alert("data-id:"+$(identifier).data('id')+", data-option:"+$(identifier).data('option'));
}
</script>
<a id="option1"
data-id="10"
data-option="21"
href="#"
onclick="goDoSomething(this);">
Click to do something
</a>
javascript : You can use getAttribute("attributename")
if want to use javascript tag,
<script type="text/javascript">
function goDoSomething(d){
alert(d.getAttribute("data-id"));
}
</script>
<a id="option1"
data-id="10"
data-option="21"
href="#"
onclick="goDoSomething(this);">
Click to do something
</a>
Or:
<script type="text/javascript">
function goDoSomething(data_id, data_option){
alert("data-id:"+data_id+", data-option:"+data_option);
}
</script>
<a id="option1"
data-id="10"
data-option="21"
href="#"
onclick="goDoSomething(this.getAttribute('data-id'), this.getAttribute('data-option'));">
Click to do something
</a>
The -std=c++14
flag is not supported on GCC 4.8. If you want to use C++14 features you need to compile with -std=c++1y
. Using godbolt.org it appears that the earilest version to support -std=c++14
is GCC 4.9.0 or Clang 3.5.0
The original code works fine for reading and separating the csv file data but you need to change the data type from csv to text.
The code below worked for me I used part of the code above inside the button class.
public Button signupB;
public void handleButtonClick (){
try {
FXMLLoader fxmlLoader = new FXMLLoader();
fxmlLoader.setLocation(getClass().getResource("sceneNotAvailable.fxml"));
/*
* if "fx:controller" is not set in fxml
* fxmlLoader.setController(NewWindowController);
*/
Scene scene = new Scene(fxmlLoader.load(), 630, 400);
Stage stage = new Stage();
stage.setTitle("New Window");
stage.setScene(scene);
stage.show();
} catch (IOException e) {
Logger logger = Logger.getLogger(getClass().getName());
logger.log(Level.SEVERE, "Failed to create new Window.", e);
}
}
}
In your web.config (on the server) add
<system.diagnostics>
<sources>
<source name="System.ServiceModel" switchValue="Information, ActivityTracing" propagateActivity="true">
<listeners>
<add name="traceListener" type="System.Diagnostics.XmlWriterTraceListener" initializeData="C:\logs\Traces.svclog"/>
</listeners>
</source>
</sources>
</system.diagnostics>
try this.
filename = Path.ChangeExtension(".blah")
in you Case:
myfile= c:/my documents/my images/cars/a.jpg;
string extension = Path.GetExtension(myffile);
filename = Path.ChangeExtension(myfile,".blah")
You should look this post too:
http://msdn.microsoft.com/en-us/library/system.io.path.changeextension.aspx
If you want to use an array, you have to keep a counter which contains the number of cars in the garage. Better use an ArrayList
instead of array:
List<Car> garage = new ArrayList<Car>();
garage.add(redCar);
packed
means it will use the smallest possible space for struct Ball
- i.e. it will cram fields together without paddingaligned
means each struct Ball
will begin on a 4 byte boundary - i.e. for any struct Ball
, its address can be divided by 4These are GCC extensions, not part of any C standard.
When you first open a web/app project, do a Ctrl-F5, which is the shortcut for starting the application without debugging. Then when you subsequently hit F5 and launch the debugger, it will use that instance of IE. Then stop and start the debugging in Visual Studio instead of closing IE.
It works on my machines. I'm using the built in dev web server. Don't know if that makes a difference.
Firefox will also stay open so you can debug in either or both at the same time.
Personally I rarely write loops myself now when I can get away with it... I use the Jakarta commons libs:
Customer findCustomerByid(final int id){
return (Customer) CollectionUtils.find(customers, new Predicate() {
public boolean evaluate(Object arg0) {
return ((Customer) arg0).getId()==id;
}
});
}
Yay! I saved one line!
You can do it like this:
CREATE TABLE `ttt` (
`id` INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
`t1` TIMESTAMP NULL DEFAULT '0000-00-00 00:00:00',
`t2` TIMESTAMP NULL DEFAULT '0000-00-00 00:00:00',
`t3` TIMESTAMP NULL DEFAULT '0000-00-00 00:00:00',
`t4` TIMESTAMP NULL DEFAULT 0,
PRIMARY KEY (`id`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
see: https://mariadb.com/kb/en/mariadb/timestamp/
sample
MariaDB []> insert into ttt (id) VALUES (1),(2),(3);
Query OK, 3 rows affected (0.01 sec)
Records: 3 Duplicates: 0 Warnings: 0
MariaDB []> select * from ttt;
+----+---------------------+---------------------+---------------------+---------------------+
| id | t1 | t2 | t3 | t4 |
+----+---------------------+---------------------+---------------------+---------------------+
| 1 | 0000-00-00 00:00:00 | 2000-01-01 12:01:02 | 0000-00-00 00:00:00 | 0000-00-00 00:00:00 |
| 2 | 0000-00-00 00:00:00 | 2000-01-01 12:01:02 | 0000-00-00 00:00:00 | 0000-00-00 00:00:00 |
| 3 | 0000-00-00 00:00:00 | 2000-01-01 12:01:02 | 0000-00-00 00:00:00 | 0000-00-00 00:00:00 |
+----+---------------------+---------------------+---------------------+---------------------+
3 rows in set (0.00 sec)
MariaDB []>
A small/hidden iframe can work for this purpose.
That way you don't have to worry about closing the pop up.
If there is a null
in an array and you want to avoid it:
db.test.find({"contain" : {$ne :[] }}).pretty()
This post is now nearly 5 years old! Python-2.7 will stop receiving official updates from python.org in 2020. Also, Python-3.7 has been released. Check out Python-Future on how to make your Python-2 code compatible with Python-3. For updating conda, the documentation now recommends using conda update --all
in each of your conda environments to update all packages and the Python executable for that version. Also, since they changed their name to Anaconda, I don't know if the Windows registry keys are still the same.
There have been no updates to Python(x,y) since June of 2015, so I think it's safe to assume it has been abandoned.
UPDATE: 2016-11-11As @cxw comments below, these answers are for the same bit-versions, and by bit-version I mean 64-bit vs. 32-bit. For example, these answers would apply to updating from 64-bit Python-2.7.10 to 64-bit Python-2.7.11, ie: the same bit-version. While it is possible to install two different bit versions of Python together, it would require some hacking, so I'll save that exercise for the reader. If you don't want to hack, I suggest that if switching bit-versions, remove the other bit-version first.
UPDATES: 2016-05-16PATH
and Registry. After extraction, create a symlink to conda
in your bin
or install conda from PyPI. Then create another symlink called conda-activate
to activate
in the Anaconda/Miniconda root bin folder. Now Anaconda/Miniconda is just like Ruby RVM. Just use conda-activate root
to enable Anaconda/Miniconda.conda update --all
to keep each conda environment updated,$ ln /c/Python33/python.exe python3
).If OP has 2.7.x and wants to install newer version of 2.7.x, then
It is recommended to uninstall any other Python distribution before installing Python(x,y)
Program Files\Enthought
or home\AppData\Local\Enthought\Canopy\App
for all users or per user respectively. Newer installations are updated by using the built in update tool. See their documentation.Other Python 2.7 Installations On Windows, ActivePython 2.7 cannot coexist with other Python 2.7 installations (for example, a Python 2.7 build from python.org). Uninstall any other Python 2.7 installations before installing ActivePython 2.7.
sage -upgrade
command.Anaconda can be updated by using the conda
command:
conda update --all
Anaconda/Miniconda lets users create environments to manage multiple Python versions including Python-2.6, 2.7, 3.3, 3.4 and 3.5. The root Anaconda/Miniconda installations are currently based on either Python-2.7 or Python-3.5.
Anaconda will likely disrupt any other Python installations. Installation uses MSI installer.
[UPDATE: 2016-05-16] Anaconda and Miniconda now use .exe
installers and provide options to disable Windows PATH
and Registry alterations.
Therefore Anaconda/Miniconda can be installed without disrupting existing Python installations depending on how it was installed and the options that were selected during installation. If the .exe
installer is used and the options to alter Windows PATH
and Registry are not disabled, then any previous Python installations will be disabled, but simply uninstalling the Anaconda/Miniconda installation should restore the original Python installation, except maybe the Windows Registry Python\PythonCore
keys.
Anaconda/Miniconda makes the following registry edits regardless of the installation options: HKCU\Software\Python\ContinuumAnalytics\
with the following keys: Help
, InstallPath
, Modules
and PythonPath
- official Python registers these keys too, but under Python\PythonCore
. Also uninstallation info is registered for Anaconda\Miniconda. Unless you select the "Register with Windows" option during installation, it doesn't create PythonCore
, so integrations like Python Tools for Visual Studio do not automatically see Anaconda/Miniconda. If the option to register Anaconda/Miniconda is enabled, then I think your existing Python Windows Registry keys will be altered and uninstallation will probably not restore them.
App\lib\site-packages
and App\Scripts
could be copied to the new installation, but if this didn't work then reinstalling all packages might have been necessary. Use pip list
to see what packages were installed and their versions. Some were installed by PortablePython. Use easy_install pip
to install pip if it wasn't installed.If OP has 2.7.x and wants to install a different version, e.g. <=2.6.x or >=3.x.x, then installing different versions side-by-side is fine. You must choose which version of Python (if any) to associate with *.py
files and which you want on your path, although you should be able to set up shells with different paths if you use BASH. AFAIK 2.7.x is backwards compatible with 2.6.x, so IMHO side-by-side installs is not necessary, however Python-3.x.x is not backwards compatible, so my recommendation would be to put Python-2.7 on your path and have Python-3 be an optional version by creating a shortcut to its executable called python3 (this is a common setup on Linux). The official Python default install path on Windows is
If OP is not updating Python, but merely updating packages, they may wish to look into virtualenv to keep the different versions of packages specific to their development projects separate. Pip is also a great tool to update packages. If packages use binary installers I usually uninstall the old package before installing the new one.
I hope this clears up any confusion.
A small note about the efficiency of abovementioned methods:
library(microbenchmark)
microbenchmark(
which("Feb" == month.abb)[[1]],
which(month.abb %in% "Feb"))
Unit: nanoseconds
min lq mean median uq max neval
891 979.0 1098.00 1031 1135.5 3693 100
1052 1175.5 1339.74 1235 1390.0 7399 100
So, the best one is
which("Feb" == month.abb)[[1]]
Attention Android Wear developers: "Remove Unused Resources" will delete the xml file where you declare the capability name (res/values/wear.xml) and the phone won't be able to connect to the watch. I spent hours trying to figure out this bug in my app.
Check behavior Very Simple Solution
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
Log.d(LOG, "MainActivity - onCreate() called")
fragments_frame.post {
Log.d(LOG, " fragments_frame.height:${fragments_frame.width}")
Log.d(LOG, " fragments_frame.height:${fragments_frame.measuredWidth}")
}
}
For Kotlin Users don't forget to add ? in data: Intent?
like
public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {}
@AlexanderMP's answer is correct, but you can also consider handling nulls with coalesce
:
declare @CodeNameString nvarchar(max)
set @CodeNameString = null
SELECT @CodeNameString = Coalesce(@CodeNameString + ', ', '') + cast(CodeName as varchar) from AccountCodes
select @CodeNameString
To start the PostgreSQL server:
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
To end the PostgreSQL server:
pg_ctl -D /usr/local/var/postgres stop -s -m fast
You can also create an alias via CLI to make it easier:
alias pg-start='pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start'
alias pg-stop='pg_ctl -D /usr/local/var/postgres stop -s -m fast'
With these you can just type "pg-start" to start PostgreSQL and "pg-stop" to shut it down.
I'm not sure about the circumstances where you need to convert an NSInteger
to an int
.
NSInteger is just a typedef:
NSInteger Used to describe an integer independently of whether you are building for a 32-bit or a 64-bit system.
#if __LP64__ || TARGET_OS_EMBEDDED || TARGET_OS_IPHONE || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
typedef long NSInteger;
#else
typedef int NSInteger;
#endif
You can use NSInteger
any place you use an int
without converting it.
The accepted answer is faulty, since the contents from the initial user folder are not moved using it. I am going to add another answer to correct it:
sudo usermod -d /newhome/username -m username
You don't need to create the folder with username and this will also move your files from the initial user folder to /newhome/username folder.
I think your caret and dollar sign are part of the problem You should also modify the regex a little, I use the next @"[ :]+([\w.-]+)@([\w-.])+((.(\w){2,3})+)"
This will get the name in the ng-repeat to come up seperate in the form validation.
<td>
<input ng-model="r.QTY" class="span1" name="{{'QTY' + $index}}" ng-pattern="/^[\d]*\.?[\d]*$/" required/>
</td>
But I had trouble getting it to look up in its validation message so I had to use an ng-init to get it to resolve a variable as the object key.
<td>
<input ng-model="r.QTY" class="span1" ng-init="name = 'QTY' + $index" name="{{name}}" ng-pattern="/^[\d]*\.?[\d]*$/" required/>
<span class="alert-error" ng-show="form[name].$error.pattern"><strong>Requires a number.</strong></span>
<span class="alert-error" ng-show="form[name].$error.required"><strong>*Required</strong></span>
pip uninstall setuptools
and then:
pip install setuptools
This works for me and fix my issue.
This has been fully answered here.
See Oracle's docs on SELECT to see how subquery factoring works, and Mark's example:
WITH employee AS (SELECT * FROM Employees)
SELECT * FROM employee WHERE ID < 20
UNION ALL
SELECT * FROM employee WHERE Sex = 'M'
Json isn't a huge language to start with, so libraries for it are likely to be small(er than Xml libraries, at least).
There are a whole ton of C libraries linked at Json.org. Maybe one of them will work well for you.
I created an alternative directive that doesn't have ngApp
's limitations. It's called ngModule
. This is what you code would look like when you use it:
<!DOCTYPE html>
<html>
<head>
<script src="angular.js"></script>
<script src="angular.ng-modules.js"></script>
<script>
var moduleA = angular.module("MyModuleA", []);
moduleA.controller("MyControllerA", function($scope) {
$scope.name = "Bob A";
});
var moduleB = angular.module("MyModuleB", []);
moduleB.controller("MyControllerB", function($scope) {
$scope.name = "Steve B";
});
</script>
</head>
<body>
<div ng-modules="MyModuleA, MyModuleB">
<h1>Module A, B</h1>
<div ng-controller="MyControllerA">
{{name}}
</div>
<div ng-controller="MyControllerB">
{{name}}
</div>
</div>
<div ng-module="MyModuleB">
<h1>Just Module B</h1>
<div ng-controller="MyControllerB">
{{name}}
</div>
</div>
</body>
</html>
You can get the source code at:
http://www.simplygoodcode.com/2014/04/angularjs-getting-around-ngapp-limitations-with-ngmodule/
It's essentially the same code used internally by AngularJS without the limitations.
The following eight pseudo-elements are made available by WebKit for customizing a date input’s textbox:
::-webkit-datetime-edit
::-webkit-datetime-edit-fields-wrapper
::-webkit-datetime-edit-text
::-webkit-datetime-edit-month-field
::-webkit-datetime-edit-day-field
::-webkit-datetime-edit-year-field
::-webkit-inner-spin-button
::-webkit-calendar-picker-indicator
So if you thought the date input could use more spacing and a ridiculous color scheme you could add the following:
::-webkit-datetime-edit { padding: 1em; }_x000D_
::-webkit-datetime-edit-fields-wrapper { background: silver; }_x000D_
::-webkit-datetime-edit-text { color: red; padding: 0 0.3em; }_x000D_
::-webkit-datetime-edit-month-field { color: blue; }_x000D_
::-webkit-datetime-edit-day-field { color: green; }_x000D_
::-webkit-datetime-edit-year-field { color: purple; }_x000D_
::-webkit-inner-spin-button { display: none; }_x000D_
::-webkit-calendar-picker-indicator { background: orange; }
_x000D_
<input type="date">
_x000D_
every objects in Objective C conform to NSObject protocol, which holds onto the performSelector: method. I was also previously looking for a way to create some "helper or private" methods that I did not need exposed on a public level. If you want to create a private method with no overhead and not having to define it in your header file then give this a shot...
define the your method with a similar signature as the code below...
-(void)myHelperMethod: (id) sender{
// code here...
}
then when you need to reference the method simply call it as a selector...
[self performSelector:@selector(myHelperMethod:)];
this line of code will invoke the method you created and not have an annoying warning about not having it defined in the header file.
Variable table is available only to the current session, for example, if you need to EXEC
another stored procedure within the current one you will have to pass the table as Table Valued Parameter
and of course this will affect the performance, with temporary tables you can do this with only passing the temporary table name
To test a Temporary table:
To test a Variable table:
something else I have experienced is: If your schema doesn't have GRANT
privilege to create tables then use variable tables.
Distances to the source of iBeacon-formatted advertisement packets are estimated from the signal path attenuation calculated by comparing the measured received signal strength to the claimed transmit power which the transmitter is supposed to encode in the advertising data.
A path loss based scheme like this is only approximate and is subject to variation with things like antenna angles, intervening objects, and presumably a noisy RF environment. In comparison, systems really designed for distance measurement (GPS, Radar, etc) rely on precise measurements of propagation time, in same cases even examining the phase of the signal.
As Jiaru points out, 160 ft is probably beyond the intended range, but that doesn't necessarily mean that a packet will never get through, only that one shouldn't expect it to work at that distance.
If you're looking for a solution that seems to be more "by the book" and methodologically designed (using a BroadcastReceiver), you better have a look at the following link: http://www.hrupin.com/2011/10/how-to-finish-all-activities-in-your-android-application-through-simple-call.
A slight change is required in the proposed implementation that appears in that link - you should use the sendStickyBroadcast(Intent) method (don't forget to add the BROADCAST_STICKY permission to your manifest) rather than sendBroadcast(Intent), in order to enable your paused activities to be able to receive the broadcast and process it, and this means that you should also remove that sticky broadcast while restarting your application by calling the removeStickyBroadcast(Intent) method in your opening Activity's onCreate() method.
Although the above mentioned startActivity(...) based solutions, at first glance - seem to be very nice, elegant, short, fast and easy to implement - they feel a bit "wrong" (to start an activity - with all the possible overhead and resources that may be required and involved in it, just in order to kill it?...)
You can also customize the by passing the delete item along with the message. In my case using MVC and Razor, so I could do this:
@Html.ActionLink("Delete",
"DeleteTag", new { id = t.IDTag },
new { onclick = "return confirm('Do you really want to delete the tag " + @t.Tag + "?')" })
git add -u
git reset -- main/dontcheckmein.txt
You Can use this:
Objective-C
UIBarButtonItem *rightSideOptionButton = [[UIBarButtonItem alloc] initWithTitle:@"Right" style:UIBarButtonItemStylePlain target:self action:@selector(rightSideOptionButtonClicked:)];
self.navigationItem.rightBarButtonItem = rightSideOptionButton;
Swift
let rightSideOptionButton = UIBarButtonItem()
rightSideOptionButton.title = "Right"
self.navigationItem.rightBarButtonItem = rightSideOptionButton
See the following snippet, is this what you want?
body {
background: silver;
padding: 0 10px;
}
#content:after {
height: 10px;
display: block;
width: 100px;
background: #808080;
border-right: 1px white;
content: '';
}
#footer:before {
display: block;
content: '';
background: silver;
height: 10px;
margin-top: -20px;
margin-left: 101px;
}
#content {
background: white;
}
#footer {
padding-top: 10px;
background: #404040;
}
p {
padding: 100px;
text-align: center;
}
#footer p {
color: white;
}
_x000D_
<body>
<div id="content"><p>#content</p></div>
<div id="footer"><p>#footer</p></div>
</body>
_x000D_
I've been looking at this problem for the better part of a day, and here's what I've come up with (credit to https://stackoverflow.com/a/5249214/196358 for pointing me in this direction).
(Note: I'm using flask-sqlalchemy, so my model declaration format is a bit different from straight sqlalchemy).
In my models.py
file:
import json
class Serializer(object):
__public__ = None
"Must be implemented by implementors"
def to_serializable_dict(self):
dict = {}
for public_key in self.__public__:
value = getattr(self, public_key)
if value:
dict[public_key] = value
return dict
class SWEncoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, Serializer):
return obj.to_serializable_dict()
if isinstance(obj, (datetime)):
return obj.isoformat()
return json.JSONEncoder.default(self, obj)
def SWJsonify(*args, **kwargs):
return current_app.response_class(json.dumps(dict(*args, **kwargs), cls=SWEncoder, indent=None if request.is_xhr else 2), mimetype='application/json')
# stolen from https://github.com/mitsuhiko/flask/blob/master/flask/helpers.py
and all my model objects look like this:
class User(db.Model, Serializer):
__public__ = ['id','username']
... field definitions ...
In my views I call SWJsonify wherever I would have called Jsonify
, like so:
@app.route('/posts')
def posts():
posts = Post.query.limit(PER_PAGE).all()
return SWJsonify({'posts':posts })
Seems to work pretty well. Even on relationships. I haven't gotten far with it, so YMMV, but so far it feels pretty "right" to me.
Suggestions welcome.
$('option:selected', 'select').removeAttr('selected').next('option').attr('selected', 'selected');
Check out working code here http://jsbin.com/ipewe/edit
Please use Homebrew Formulae page to see the list of installable packages. https://formulae.brew.sh/formula/
To install any package => command to use is :
brew install node
As the whole thing is mixing up let's look at it function and code to simulate what it means consicely
The only way to get a row is via primary key
getRow(pk: PrimaryKey): Row
Primary key data structure can be this:
// If you decide your primary key is just the partition key.
class PrimaryKey(partitionKey: String)
// and in thids case
getRow(somePartitionKey): Row
However you can decide your primary key is partition key + sort key in this case:
// if you decide your primary key is partition key + sort key
class PrimaryKey(partitionKey: String, sortKey: String)
getRow(partitionKey, sortKey): Row
getMultipleRows(partitionKey): Row[]
So the bottom line:
Decided that your primary key is partition key only? get single row by partition key.
Decided that your primary key is partition key + sort key? 2.1 Get single row by (partition key, sort key) or get range of rows by (partition key)
In either way you get a single row by primary key the only question is if you defined that primary key to be partition key only or partition key + sort key
Building blocks are:
Think of Item as a row and of KV Attribute as cells in that row.
You can do (2) only if you decided that your PK is composed of (HashKey, SortKey).
More visually as its complex, the way I see it:
+----------------------------------------------------------------------------------+
|Table |
|+------------------------------------------------------------------------------+ |
||Item | |
||+-----------+ +-----------+ +-----------+ +-----------+ | |
|||primaryKey | |kv attr | |kv attr ...| |kv attr ...| | |
||+-----------+ +-----------+ +-----------+ +-----------+ | |
|+------------------------------------------------------------------------------+ |
|+------------------------------------------------------------------------------+ |
||Item | |
||+-----------+ +-----------+ +-----------+ +-----------+ +-----------+ | |
|||primaryKey | |kv attr | |kv attr ...| |kv attr ...| |kv attr ...| | |
||+-----------+ +-----------+ +-----------+ +-----------+ +-----------+ | |
|+------------------------------------------------------------------------------+ |
| |
+----------------------------------------------------------------------------------+
+----------------------------------------------------------------------------------+
|1. Always get item by PrimaryKey |
|2. PK is (Hash,RangeKey), great get MULTIPLE Items by Hash, filter/sort by range |
|3. PK is HashKey: just get a SINGLE ITEM by hashKey |
| +--------------------------+|
| +---------------+ |getByPK => getBy(1 ||
| +-----------+ +>|(HashKey,Range)|--->|hashKey, > < or startWith ||
| +->|Composite |-+ +---------------+ |of rangeKeys) ||
| | +-----------+ +--------------------------+|
|+-----------+ | |
||PrimaryKey |-+ |
|+-----------+ | +--------------------------+|
| | +-----------+ +---------------+ |getByPK => get by specific||
| +->|HashType |-->|get one item |--->|hashKey ||
| +-----------+ +---------------+ | ||
| +--------------------------+|
+----------------------------------------------------------------------------------+
So what is happening above. Notice the following observations. As we said our data belongs to (Table, Item, KVAttribute). Then Every Item has a primary key. Now the way you compose that primary key is meaningful into how you can access the data.
If you decide that your PrimaryKey is simply a hash key then great you can get a single item out of it. If you decide however that your primary key is hashKey + SortKey then you could also do a range query on your primary key because you will get your items by (HashKey + SomeRangeFunction(on range key)). So you can get multiple items with your primary key query.
Note: I did not refer to secondary indexes.
This works for me:
function getScripts(scripts) {
var prArr = [];
scripts.forEach(function(script) {
(function(script){
prArr .push(new Promise(function(resolve){
$.getScript(script, function () {
resolve();
});
}));
})(script);
});
return Promise.all(prArr, function(){
return true;
});
}
And use it:
var jsarr = ['script1.js','script2.js'];
getScripts(jsarr).then(function(){
...
});
STEP 1: add font file
For example, when font file will be helvetica_neue.ttf that will generates R.font.helvetica_neue
STEP 2: create font family
For example:
<?xml version="1.0" encoding="utf-8"?>
<font-family xmlns:android="http://schemas.android.com/apk/res/android">
<font
android:fontStyle="normal"
android:fontWeight="400"
android:font="@font/helvetica_neue" />
</font-family>
STEP 3: use it
In xml layouts:
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="@font/my_font"/>
Or add fonts to style:
<style name="customfontstyle" parent="@android:style/TextAppearance.Small">
<item name="android:fontFamily">@font/lobster</item>
</style>
For more examples you can follow documentation:
Here is another image map plugin I wrote to enhance image maps: https://github.com/gestixi/pictarea
It makes it easy to highlight all the area and let you specify different styles depending on the state of the zone: normal, hover, active, disable.
You can also specify how many zones can be selected at the same time.
I wrote a short convenience function for posting JSON.
$.postJSON = function(url, data, success, args) {
args = $.extend({
url: url,
type: 'POST',
data: JSON.stringify(data),
contentType: 'application/json; charset=utf-8',
dataType: 'json',
async: true,
success: success
}, args);
return $.ajax(args);
};
$.postJSON('test/url', data, function(result) {
console.log('result', result);
});
Basically a modified syntax of function declaration/definitions:
a2dd.h
class A2DD
{
private:
int gx;
int gy;
public:
A2DD(int x,int y);
int getSum();
};
a2dd.cpp
A2DD::A2DD(int x,int y)
{
gx = x;
gy = y;
}
int A2DD::getSum()
{
return gx + gy;
}
Beware that SELinux can trigger this error as well, even if all permissions seem to be OK. Disabling it did the trick for me (insert usual disclaimers about disabling it).
str_replace will do the trick thusly
$new_str = str_replace(' ', '', $old_str);
Another solution is to update ViewPager
height according to the current page height in its PagerAdapter
. Assuming that your are creating your ViewPager
pages this way:
@Override
public Object instantiateItem(ViewGroup container, int position) {
PageInfo item = mPages.get(position);
item.mImageView = new CustomImageView(container.getContext());
item.mImageView.setImageDrawable(item.mDrawable);
container.addView(item.mImageView, 0);
return item;
}
Where mPages
is internal list of PageInfo
structures dynamically added to the PagerAdapter
and CustomImageView
is just regular ImageView
with overriden onMeasure()
method that sets its height according to specified width and keeps image aspect ratio.
You can force ViewPager
height in setPrimaryItem()
method:
@Override
public void setPrimaryItem(ViewGroup container, int position, Object object) {
super.setPrimaryItem(container, position, object);
PageInfo item = (PageInfo) object;
ViewPager pager = (ViewPager) container;
int width = item.mImageView.getMeasuredWidth();
int height = item.mImageView.getMeasuredHeight();
pager.setLayoutParams(new FrameLayout.LayoutParams(width, Math.max(height, 1)));
}
Note the Math.max(height, 1)
. That fixes annoying bug that ViewPager
does not update displayed page (shows it blank), when previous page has zero height (i. e. null drawable in the CustomImageView
), each odd swipe back and forth between two pages.
Using an in
can have a performance impact. Joining two subqueries will not have the same performance impact and can be accomplished like this:
SELECT *
FROM (SELECT msisdn
,callid
,Change_color
,play_file_name
,date_played
FROM insert_log
WHERE play_file_name NOT IN('Prompt1','Conclusion_Prompt_1','silent')
ORDER BY callid ASC) t1
JOIN (SELECT MAX(date_played) AS date_played
FROM insert_log GROUP BY callid) t2
ON t1.date_played = t2.date_played
Table A
+--------+-----------+
| A-num | text |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
+--------+-----------+
Table B
+------+------+--------------+
| B-num| date | A-num |
| 22 | 01.08.2003 | 2 |
| 23 | 02.08.2003 | 2 |
| 24 | 03.08.2003 | 1 |
| 25 | 04.08.2003 | 4 |
| 26 | 05.03.2003 | 4 |
I will update field text in table A with
UPDATE `Table A`,`Table B`
SET `Table A`.`text`=concat_ws('',`Table A`.`text`,`Table B`.`B-num`," from
",`Table B`.`date`,'/')
WHERE `Table A`.`A-num` = `Table B`.`A-num`
and come to this result:
Table A
+--------+------------------------+
| A-num | text |
| 1 | 24 from 03 08 2003 / |
| 2 | 22 from 01 08 2003 / |
| 3 | |
| 4 | 25 from 04 08 2003 / |
| 5 | |
--------+-------------------------+
where only one field from Table B is accepted, but I will come to this result:
Table A
+--------+--------------------------------------------+
| A-num | text |
| 1 | 24 from 03 08 2003 |
| 2 | 22 from 01 08 2003 / 23 from 02 08 2003 / |
| 3 | |
| 4 | 25 from 04 08 2003 / 26 from 05 03 2003 / |
| 5 | |
+--------+--------------------------------------------+
A String
is an immutable object which means the value cannot be changed whereas StringBuffer
is mutable.
The StringBuffer
is Synchronized hence thread-safe whereas StringBuilder
is not and suitable for only single-threaded instances.
In a word no.
In two, not yet.
There is, however, an open issue for a --no-build
flag to npm install
to perform an installation without building, which could be used to do what you're asking.
See this open issue.
Partial solution:
Put the things you want done in a shell-script, like so
#!/bin/bash
ls
echo "yey!"
And don't forget to 'chmod +x file
' to make it executable. Then you can
open -a Terminal.app scriptfile
and it will run in a new window. Add 'bash
' at the end of the script to keep the new session from exiting. (Although you might have to figure out how to load the users rc-files and stuff..)
In general one could,
merge_list <- function(...) by(v<-unlist(c(...)),names(v),base::c)
Note that the by()
solution returns an attribute
d list, so it will print differently, but will still be a list. But you can get rid of the attributes with attr(x,"_attribute.name_")<-NULL
. You can probably also use aggregate()
.
Boost ptr_list
http://www.boost.org/doc/libs/1_37_0/libs/ptr_container/doc/ptr_list.html
HTH
I've faced the same problem , but I found out that not all the configuration settings could be set using ini_set() function , check this Where a configuration setting may be set
Suppose access a proxy server A(eg. nginx), and the server A forwards the request to another server B(eg. tomcat).
If this process continues for a long time (more than the proxy server read timeout setting), A still did not get a completed response of B. It happens.
for nginx, You can configure the proxy_read_timeout(in location) property to solve his.But this is usually not a good idea, if you set the value too high. This may hide the real error.You'd better improve the design to really solve this problem.
I could happen that if your array contains the string "hello", and if you are searching for "he", grep returns true, although, "he" may not be an array element.
Perhaps,
if (grep(/^$match$/, @array))
more apt.
Following event is fired for any change of the text in the ComboBox (when the selected index is changed and when the text is changed by editing too).
<ComboBox IsEditable="True" TextBoxBase.TextChanged="cbx_TextChanged" />
ionic info
This will give you the ionic version,node, npm and os.
If you need only ionic version use ionic -v.
If your project's development ionic version and your global versions are different then check them by using the below commands.
To check the globally installed ionic version ionic -g and to check the project's ionic version use ionic -g.
To check the project's ionic version use ionic -v in your project path or else ionic info to get the details of ionic and its dependencies.
For a non-mutating version:
st = myString.substr(0, myString.size()-1);
It is possible to parse Markdown in Lua using the Lunamark code (see its Github repo), meaning that Markdown may be parsed directly by macros in Luatex and supports conversion to many of the formats supported by Pandoc (i.e., the library is well-suited to use in lualatex
, context
, Metafun, Plain Luatex, and texlua
scripts).
The project was started by John MacFarlane, author of Pandoc, and the tool's development tracks that of Pandoc quite closely and is of similar (i.e., excellent) quality.
Khaled Hosny wrote a Context module, providing convenient macro support. Michal's answer to the Is there any package with Markdown support? question gives code providing similar support for Latex.
Remove your Gemfile.lock.
Move to bash if you are using zsh.
sudo bash
gem update --system
Now run command bundle to create a new Gemfile.lock file.
Move back to your zsh sudo exec zsh
now run your rake commands.
I don't have Anaconda so the steps I took are:
brew uninstall python3
brew install python3
Your Xcode (10.2) is too outdated. Please update to Xcode 11.3 (or delete it). Xcode can be updated from the App Store.
**So, I deleted Xcode since no update would show, then I reinstalled it.xcode-select --install
after. If you don't.. you'll get an error: The following formula python cannot be installed as binary package and must be built from source. Install the Command Line Tools: xcode-select --install
brew install python3
and it completed successfully.Used this script just to see if it works
import requests
r = requests.get('https://www.office.com')
print(r)
Ran the script python3 and python3.7 and output was <Response [200]>
instead of SSLError.
You can preserve white-space with white-space: pre
CSS property which will preserve white-space inside an element. https://www.w3schools.com/cssref/pr_text_white-space.asp
require section This section contains the packages/dependencies which are better candidates to be installed/required in the production environment.
require-dev section: This section contains the packages/dependencies which can be used by the developer to test her code (or to experiment on her local machine and she doesn't want these packages to be installed on the production environment).
You can add a form onsubmit handler, something like:
<form onsubmit="return validate();">
</form>
<script>function validate() {
// check if input is bigger than 3
var value = document.getElementById('titleeee').value;
if (value.length < 3) {
return false; // keep form from submitting
}
// else form is good let it submit, of course you will
// probably want to alert the user WHAT went wrong.
return true;
}</script>
I really like E Text Editor as it's pretty much a "port" of TextMate to Windows. Obviously Django being based on Python, the support for auto-completion is limited (there's nothing like intellisense that would require a dedicated IDE with knowledge of the intricacies of each library), but the use of snippets and "word-completion" helps a lot. Also, it has support for both Django Python files and the template files, and CSS, HTML, etc.
I've been using E Text Editor for a long time now, and I can tell you that it beats both PyDev and Komodo Edit hands down when it comes to working with Django. For other kinds of projects, PyDev and Komodo might be more adequate though.
Here is a class I wrote to do this for ASP.NETCore RC2. I use it so I can generate html email using Razor.
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Abstractions;
using Microsoft.AspNetCore.Mvc.ModelBinding;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.AspNetCore.Mvc.ViewEngines;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.AspNetCore.Routing;
using System.IO;
using System.Threading.Tasks;
namespace cloudscribe.Web.Common.Razor
{
/// <summary>
/// the goal of this class is to provide an easy way to produce an html string using
/// Razor templates and models, for use in generating html email.
/// </summary>
public class ViewRenderer
{
public ViewRenderer(
ICompositeViewEngine viewEngine,
ITempDataProvider tempDataProvider,
IHttpContextAccessor contextAccesor)
{
this.viewEngine = viewEngine;
this.tempDataProvider = tempDataProvider;
this.contextAccesor = contextAccesor;
}
private ICompositeViewEngine viewEngine;
private ITempDataProvider tempDataProvider;
private IHttpContextAccessor contextAccesor;
public async Task<string> RenderViewAsString<TModel>(string viewName, TModel model)
{
var viewData = new ViewDataDictionary<TModel>(
metadataProvider: new EmptyModelMetadataProvider(),
modelState: new ModelStateDictionary())
{
Model = model
};
var actionContext = new ActionContext(contextAccesor.HttpContext, new RouteData(), new ActionDescriptor());
var tempData = new TempDataDictionary(contextAccesor.HttpContext, tempDataProvider);
using (StringWriter output = new StringWriter())
{
ViewEngineResult viewResult = viewEngine.FindView(actionContext, viewName, true);
ViewContext viewContext = new ViewContext(
actionContext,
viewResult.View,
viewData,
tempData,
output,
new HtmlHelperOptions()
);
await viewResult.View.RenderAsync(viewContext);
return output.GetStringBuilder().ToString();
}
}
}
}
There are 2 major differences.
Technical, there are 3 major differences:
First and foremost, Community doesn't have TFS support.
You'll just have to use git (arguable whether this constitutes a disadvantage or whether this actually is a good thing).
Note: This is what MS wrote. Actually, you can check-in&out with TFS as normal, if you have a TFS server in the network. You just cannot use Visual Studio as TFS SERVER.
Second, VS Community is severely limited in its testing capability.
Only unit tests. No Performance tests, no load tests, no performance profiling.
Third, VS Community's ability to create Virtual Environments has been severely cut.
On the other hand, syntax highlighting, IntelliSense, Step-Through debugging, GoTo-Definition, Git-Integration and Build/Publish are really all the features I need, and I guess that applies to a lot of developers.
For all other things, there are tools that do the same job faster, better and cheaper.
If you, like me, anyway use git, do unit testing with NUnit, and use Java-Tools to do Load-Testing on Linux plus TeamCity for CI, VS Community is more than sufficient, technically speaking.
Licensing:
A) If you're an individual developer (no enterprise, no organization), no difference (AFAIK), you can use CommunityEdition like you'd use the paid edition (as long as you don't do subcontracting)
B) You can use CommunityEdition freely for OpenSource (OSI) projects
C) If you're an educational insitution, you can use CommunityEdition freely (for education/classroom use)
D) If you're an enterprise with 250 PCs or users or more than one million US dollars in revenue (including subsidiaries), you are NOT ALLOWED to use CommunityEdition.
E) If you're not an enterprise as defined above, and don't do OSI or education, but are an "enterprise"/organization, with 5 or less concurrent (VS) developers, you can use VS Community freely (but only if you're the owner of the software and sell it, not if you're a subcontractor creating software for a larger enterprise, software which in the end the enterprise will own), otherwise you need a paid edition.
The above does not consitute legal advise.
See also:
https://softwareengineering.stackexchange.com/questions/262916/understanding-visual-studio-community-edition-license
bash:
for f in *.xls ; do xls2csv "$f" "${f%.xls}.csv" ; done
Simple, use array_intersect()
instead:
$result = array_intersect($array1, $array2);
In other words, you want to pipe stdout into one filter (tee bbb.out
) and stderr into another filter (tee ccc.out
). There is no standard way to pipe anything other than stdout into another command, but you can work around that by juggling file descriptors.
{ { ./aaa.sh | tee bbb.out; } 2>&1 1>&3 | tee ccc.out; } 3>&1 1>&2
See also How to grep standard error stream (stderr)? and When would you use an additional file descriptor?
In bash (and ksh and zsh), but not in other POSIX shells such as dash, you can use process substitution:
./aaa.sh > >(tee bbb.out) 2> >(tee ccc.out)
Beware that in bash, this command returns as soon as ./aaa.sh
finishes, even if the tee
commands are still executed (ksh and zsh do wait for the subprocesses). This may be a problem if you do something like ./aaa.sh > >(tee bbb.out) 2> >(tee ccc.out); process_logs bbb.out ccc.out
. In that case, use file descriptor juggling or ksh/zsh instead.
If you are using google-colab simple visualization of the graph would be :
import tensorboardcolab as tb
tbc = tb.TensorBoardColab()
tensorboard = tb.TensorBoardColabCallback(tbc)
history = model.fit(x_train,# Features
y_train, # Target vector
batch_size=batch_size, # Number of observations per batch
epochs=epochs, # Number of epochs
callbacks=[early_stopping, tensorboard], # Early stopping
verbose=1, # Print description after each epoch
validation_split=0.2, #used for validation set every each epoch
validation_data=(x_test, y_test)) # Test data-set to evaluate the model in the end of training
If a website's directory does NOT have an "index...." file, AND .htaccess has NOT been used to block access to the directory itself, then Apache will create an "index of" page for that directory. You can save that page, and its icons, using "Save page as..." along with the "Web page, complete" option (Firefox example). If you own the website, temporarily rename any "index...." file, and reference the directory locally. Then restore your "index...." file.
To String
import strings
stringFiles := strings.Join(fileSlice[:], ",")
Back to Slice again
import strings
fileSlice := strings.Split(stringFiles, ",")
I've decided to give an answer to this question because I think it can be solved using a simpler syntax than the convoluted try-catch block. The Laravel documentation is pretty brief on this subject.
Instead of using try-catch, you can just use the DB::transaction(){...}
wrapper like this:
// MyController.php
public function store(Request $request) {
return DB::transaction(function() use ($request) {
$user = User::create([
'username' => $request->post('username')
]);
// Add some sort of "log" record for the sake of transaction:
$log = Log::create([
'message' => 'User Foobar created'
]);
// Lets add some custom validation that will prohibit the transaction:
if($user->id > 1) {
throw AnyException('Please rollback this transaction');
}
return response()->json(['message' => 'User saved!']);
});
};
You should then see that the User and the Log record cannot exist without eachother.
Some notes on the implementation above:
return
the transaction, so that you can use the response()
you return within its callback.throw
an exception if you want the transaction to be rollbacked (or have a nested function that throws the exception for you automatically, like an SQL exception from within Eloquent).id
, updated_at
, created_at
and any other fields are AVAILABLE AFTER CREATION for the $user
object (for the duration of this transaction). The transaction will run through any of the creation logic you have. HOWEVER, the whole record is discarded when the AnyException
is thrown. This means that for instance an auto-increment column for id
does get incremented on failed transactions.Tested on Laravel 5.8
For testing only two values, I'd personally do this:
if x ~= 0 and x ~= 1 then
print( "X must be equal to 1 or 0" )
return
end
If you need to test against more than two values, I'd stuff your choices in a table acting like a set, like so:
choices = {[0]=true, [1]=true, [3]=true, [5]=true, [7]=true, [11]=true}
if not choices[x] then
print("x must be in the first six prime numbers")
return
end
There is a pure CSS solution I'm currently using.
Add a body ID (or class) identifying your pages and your menu items, then use something like:
HTML:
<html>
<body id="body_questions">
<ul class="menu">
<li id="questions">Question</li>
<li id="tags">Tags</li>
<li id="users">Users</li>
</ul>
...
</body>
</html>
CSS:
.menu li:hover,
#body_questions #questions,
#body_tags #tags,
#body_users #users {
background-color: #f90;
}
So with Angular 1.5.1 ( had existing app dependency on some other MEAN stack dependencies is why I'm not currently using 1.6.4 )
This works for me like the OP saying {{myVar === "two" ? "it's true" : "it's false"}}
{{vm.StateName === "AA" ? "ALL" : vm.StateName}}
Two types module import and export.
type 1 (module.js):
// module like a webpack config
const development = {
// ...
};
const production = {
// ...
};
// export multi
module.exports = [development, production];
// export single
// module.exports = development;
type 1 (main.js):
// import module like a webpack config
const { development, production } = require("./path/to/module");
type 2 (module.js):
// module function no param
const module1 = () => {
// ...
};
// module function with param
const module2 = (param1, param2) => {
// ...
};
// export module
module.exports = {
module1,
module2
}
type 2 (main.js):
// import module function
const { module1, module2 } = require("./path/to/module");
How to use import module?
const importModule = {
...development,
// ...production,
// ...module1,
...module2("param1", "param2"),
};
The "DECOMPRESSION" test fails on CygWin, one of the most potentiaally useful platforms for it, due to the "grep" check for "xz" being case sensitive. The result of the "COMPRESSION:" check is:
COMPRESSION='/dev/stdin: XZ compressed data'
Simply replacing 'grep -q' with 'grep -q -i' everywhere seems to resolve the issue well.
I've done a few updates, particularly adding some comments and using "case" instead of stacked "if" statements, and included that fix below
#!/bin/sh
#
# rpm2cpio.sh - extract 'cpio' contents of RPM
#
# Typical usage: rpm2cpio.sh rpmname | cpio -idmv
#
if [ "$# -ne 1" ]; then
echo "Usage: $0 file.rpm" 1>&2
exit 1
fi
rpm="$1"
if [ -e "$rpm" ]; then
echo "Error: missing $rpm"
fi
leadsize=96
o=`expr $leadsize + 8`
set `od -j $o -N 8 -t u1 $rpm`
il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5`
dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9`
# echo "sig il: $il dl: $dl"
sigsize=`expr 8 + 16 \* $il + $dl`
o=`expr $o + $sigsize + \( 8 - \( $sigsize \% 8 \) \) \% 8 + 8`
set `od -j $o -N 8 -t u1 $rpm`
il=`expr 256 \* \( 256 \* \( 256 \* $2 + $3 \) + $4 \) + $5`
dl=`expr 256 \* \( 256 \* \( 256 \* $6 + $7 \) + $8 \) + $9`
# echo "hdr il: $il dl: $dl"
hdrsize=`expr 8 + 16 \* $il + $dl`
o=`expr $o + $hdrsize`
EXTRACTOR="dd if=$rpm ibs=$o skip=1"
COMPRESSION=`($EXTRACTOR |file -) 2>/dev/null`
DECOMPRESSOR="cat"
case $COMPRESSION in
*gzip*|*GZIP*)
DECOMPRESSOR=gunzip
;;
*bzip2*|*BZIP2*)
DECOMPRESSOR=bunzip2
;;
*xz*|*XZ*)
DECOMPRESSOR=unxz
;;
*cpio*|*cpio*)
;;
*)
# Most versions of file don't support LZMA, therefore we assume
# anything not detected is LZMA
DECOMPRESSOR="`which unlzma 2>/dev/null`"
case "$DECOMPRESSOR" in
/*)
DECOMPRESSOR="$DECOMPRESSOR"
;;
*)
DECOMPRESSOR=`which lzmash 2>/dev/null`
case "$DECOMPRESSOR" in
/* )
DECOMPRESSOR="lzmash -d -c"
;;
* )
echo "Warning: DECOMPRESSOR not found, assuming 'cat'" 1>&2
;;
esac
;;
esac
esac
$EXTRACTOR 2>/dev/null | $DECOMPRESSOR
With pure JavaScript:
console.log(window.location.href)
Using Angular:
this.router.url
import { Component } from '@angular/core';
import { Router } from '@angular/router';
@Component({
template: 'The href is: {{href}}'
/*
Other component settings
*/
})
export class Component {
public href: string = "";
constructor(private router: Router) {}
ngOnInit() {
this.href = this.router.url;
console.log(this.router.url);
}
}
The plunkr is here: https://plnkr.co/edit/0x3pCOKwFjAGRxC4hZMy?p=preview
Hint lies in Webapi2 auto generated account controller
Have this property with getter defined as
public string UserIdentity
{
get
{
var user = UserManager.FindByName(User.Identity.Name);
return user;//user.Email
}
}
and in order to get UserManager - In WebApi2 -do as Romans (read as AccountController) do
public ApplicationUserManager UserManager
{
get { return HttpContext.Current.GetOwinContext().GetUserManager<ApplicationUserManager>(); }
}
This should be compatible in IIS and self host mode
mysql> SET PASSWORD = PASSWORD('your_new_password');
That works for me.
Procedure successful but any outpout
Error line1: Unexpected identifier
Here is the code:
SET SERVEROUTPUT ON
DECLARE
-- Curseurs
CURSOR c1 IS
SELECT RWID FROM J_EVT
WHERE DT_SYST < TO_DATE(TO_CHAR(SYSDATE,'DD/MM') || '/' || TO_CHAR(TO_NUMBER(TO_CHAR(SYSDATE, 'YYYY')) - 3));
-- Collections
TYPE tc1 IS TABLE OF c1%RWTYPE;
-- Variables de type record
rtc1 tc1;
vCpt NUMBER:=0;
BEGIN
OPEN c1;
LOOP
FETCH c1 BULK COLLECT INTO rtc1 LIMIT 5000;
FORALL i IN 1..rtc1.COUNT
DELETE FROM J_EVT
WHERE RWID = rtc1(i).RWID;
COMMIT;
-- Nombres lus : 5025651
FOR i IN 1..rtc1.COUNT LOOP
vCpt := vCpt + SQL%BULK_RWCOUNT(i);
END LOOP;
EXIT WHEN c1%NOTFOUND;
END LOOP;
CLOSE c1;
COMMIT;
DBMS_OUTPUT.PUT_LINE ('Nombres supprimes : ' || TO_CHAR(vCpt));
END;
/
exit
Try to follow these steps, easy and clean.
Ambiguous HTTP method for action. Actions require an explicit HttpMethod binding for Swagger 2.0.
"each endpoint should have the method (get/post/put/delete)
. Solution:
Revisit your each and every controller and make sure you have added expected method.
(or you can just see in console error which controller causing ambiguity)
I also had the same requirement where I didn't have choice to pass like operator multiple times by either doing an OR or writing union query.
This worked for me in Oracle 11g:
REGEXP_LIKE (column, 'ABC.*|XYZ.*|PQR.*');
You can use this extension I test it over
import Foundation
import UIKit
extension NSMutableAttributedString {
convenience init (fullString: String, fullStringColor: UIColor, subString: String, subStringColor: UIColor) {
let rangeOfSubString = (fullString as NSString).range(of: subString)
let rangeOfFullString = NSRange(location: 0, length: fullString.count)//fullString.range(of: fullString)
let attributedString = NSMutableAttributedString(string:fullString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: fullStringColor, range: rangeOfFullString)
attributedString.addAttribute(NSAttributedStringKey.foregroundColor, value: subStringColor, range: rangeOfSubString)
self.init(attributedString: attributedString)
}
}
If linking to the shell Lightweight API (shlwapi.dll) is ok for you, you can use the PathIsDirectory function
I see the accepted answer but you dont have to actually push the apk and then run the command on adb shell direct adb install with -t flag actually works
adb install -t "path to apk in ur computer"
I was wondering if it would be a good idea to have progressive attempts at a process, so you pass this func a process name func_terminate_process "firefox" and it tires things more nicely first, then moves on to kill.
# -- NICE: try to use killall to stop process(s)
killall ${1} > /dev/null 2>&1 ;sleep 10
# -- if we do not see the process, just end the function
pgrep ${1} > /dev/null 2>&1 || return
# -- UGLY: Step trough every pid and use kill -9 on them individually
for PID in $(pidof ${1}) ;do
echo "Terminating Process: [${1}], PID [${PID}]"
kill -9 ${PID} ;sleep 10
# -- NASTY: If kill -9 fails, try SIGTERM on PID
if ps -p ${PID} > /dev/null ;then
echo "${PID} is still running, forcefully terminating with SIGTERM"
kill -SIGTERM ${PID} ;sleep 10
fi
done
# -- If after all that, we still see the process, report that to the screen.
pgrep ${1} > /dev/null 2>&1 && echo "Error, unable to terminate all or any of [${1}]" || echo "Terminate process [${1}] : SUCCESSFUL"
The Rest Client answer is perfect! (I upvoted it)
But, just in case you want to go "raw"
..........
I got this to work with HttpClient.
/*
.nuget\packages\newtonsoft.json\12.0.1
.nuget\packages\system.net.http\4.3.4
*/
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Web;
private static async Task<Token> GetElibilityToken(HttpClient client)
{
string baseAddress = @"https://blah.blah.blah.com/oauth2/token";
string grant_type = "client_credentials";
string client_id = "myId";
string client_secret = "shhhhhhhhhhhhhhItsSecret";
var form = new Dictionary<string, string>
{
{"grant_type", grant_type},
{"client_id", client_id},
{"client_secret", client_secret},
};
HttpResponseMessage tokenResponse = await client.PostAsync(baseAddress, new FormUrlEncodedContent(form));
var jsonContent = await tokenResponse.Content.ReadAsStringAsync();
Token tok = JsonConvert.DeserializeObject<Token>(jsonContent);
return tok;
}
internal class Token
{
[JsonProperty("access_token")]
public string AccessToken { get; set; }
[JsonProperty("token_type")]
public string TokenType { get; set; }
[JsonProperty("expires_in")]
public int ExpiresIn { get; set; }
[JsonProperty("refresh_token")]
public string RefreshToken { get; set; }
}
Here is another working example (based off the answer above)......with a few more tweaks. Sometimes the token-service is finicky:
private static async Task<Token> GetATokenToTestMyRestApiUsingHttpClient(HttpClient client)
{
/* this code has lots of commented out stuff with different permutations of tweaking the request */
/* this is a version of asking for token using HttpClient. aka, an alternate to using default libraries instead of RestClient */
OAuthValues oav = GetOAuthValues(); /* object has has simple string properties for TokenUrl, GrantType, ClientId and ClientSecret */
var form = new Dictionary<string, string>
{
{ "grant_type", oav.GrantType },
{ "client_id", oav.ClientId },
{ "client_secret", oav.ClientSecret }
};
/* now tweak the http client */
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Add("cache-control", "no-cache");
/* try 1 */
////client.DefaultRequestHeaders.Add("content-type", "application/x-www-form-urlencoded");
/* try 2 */
////client.DefaultRequestHeaders .Accept .Add(new MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));//ACCEPT header
/* try 3 */
////does not compile */client.Content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
////application/x-www-form-urlencoded
HttpRequestMessage req = new HttpRequestMessage(HttpMethod.Post, oav.TokenUrl);
/////req.RequestUri = new Uri(baseAddress);
req.Content = new FormUrlEncodedContent(form);
////string jsonPayload = "{\"grant_type\":\"" + oav.GrantType + "\",\"client_id\":\"" + oav.ClientId + "\",\"client_secret\":\"" + oav.ClientSecret + "\"}";
////req.Content = new StringContent(jsonPayload, Encoding.UTF8, "application/json");//CONTENT-TYPE header
req.Content.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
/* now make the request */
////HttpResponseMessage tokenResponse = await client.PostAsync(baseAddress, new FormUrlEncodedContent(form));
HttpResponseMessage tokenResponse = await client.SendAsync(req);
Console.WriteLine(string.Format("HttpResponseMessage.ReasonPhrase='{0}'", tokenResponse.ReasonPhrase));
if (!tokenResponse.IsSuccessStatusCode)
{
throw new HttpRequestException("Call to get Token with HttpClient failed.");
}
var jsonContent = await tokenResponse.Content.ReadAsStringAsync();
Token tok = JsonConvert.DeserializeObject<Token>(jsonContent);
return tok;
}
APPEND
Bonus Material!
If you ever get a
"The remote certificate is invalid according to the validation procedure."
exception......you can wire in a handler to see what is going on (and massage if necessary)
using System;
using System.Collections.Generic;
using System.Text;
using Newtonsoft.Json;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Web;
using System.Net;
namespace MyNamespace
{
public class MyTokenRetrieverWithExtraStuff
{
public static async Task<Token> GetElibilityToken()
{
using (HttpClientHandler httpClientHandler = new HttpClientHandler())
{
httpClientHandler.ServerCertificateCustomValidationCallback = CertificateValidationCallBack;
using (HttpClient client = new HttpClient(httpClientHandler))
{
return await GetElibilityToken(client);
}
}
}
private static async Task<Token> GetElibilityToken(HttpClient client)
{
// throws certificate error if your cert is wired to localhost //
//string baseAddress = @"https://127.0.0.1/someapp/oauth2/token";
//string baseAddress = @"https://localhost/someapp/oauth2/token";
string baseAddress = @"https://blah.blah.blah.com/oauth2/token";
string grant_type = "client_credentials";
string client_id = "myId";
string client_secret = "shhhhhhhhhhhhhhItsSecret";
var form = new Dictionary<string, string>
{
{"grant_type", grant_type},
{"client_id", client_id},
{"client_secret", client_secret},
};
HttpResponseMessage tokenResponse = await client.PostAsync(baseAddress, new FormUrlEncodedContent(form));
var jsonContent = await tokenResponse.Content.ReadAsStringAsync();
Token tok = JsonConvert.DeserializeObject<Token>(jsonContent);
return tok;
}
private static bool CertificateValidationCallBack(
object sender,
System.Security.Cryptography.X509Certificates.X509Certificate certificate,
System.Security.Cryptography.X509Certificates.X509Chain chain,
System.Net.Security.SslPolicyErrors sslPolicyErrors)
{
// If the certificate is a valid, signed certificate, return true.
if (sslPolicyErrors == System.Net.Security.SslPolicyErrors.None)
{
return true;
}
// If there are errors in the certificate chain, look at each error to determine the cause.
if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateChainErrors) != 0)
{
if (chain != null && chain.ChainStatus != null)
{
foreach (System.Security.Cryptography.X509Certificates.X509ChainStatus status in chain.ChainStatus)
{
if ((certificate.Subject == certificate.Issuer) &&
(status.Status == System.Security.Cryptography.X509Certificates.X509ChainStatusFlags.UntrustedRoot))
{
// Self-signed certificates with an untrusted root are valid.
continue;
}
else
{
if (status.Status != System.Security.Cryptography.X509Certificates.X509ChainStatusFlags.NoError)
{
// If there are any other errors in the certificate chain, the certificate is invalid,
// so the method returns false.
return false;
}
}
}
}
// When processing reaches this line, the only errors in the certificate chain are
// untrusted root errors for self-signed certificates. These certificates are valid
// for default Exchange server installations, so return true.
return true;
}
/* overcome localhost and 127.0.0.1 issue */
if ((sslPolicyErrors & System.Net.Security.SslPolicyErrors.RemoteCertificateNameMismatch) != 0)
{
if (certificate.Subject.Contains("localhost"))
{
HttpRequestMessage castSender = sender as HttpRequestMessage;
if (null != castSender)
{
if (castSender.RequestUri.Host.Contains("127.0.0.1"))
{
return true;
}
}
}
}
return false;
}
public class Token
{
[JsonProperty("access_token")]
public string AccessToken { get; set; }
[JsonProperty("token_type")]
public string TokenType { get; set; }
[JsonProperty("expires_in")]
public int ExpiresIn { get; set; }
[JsonProperty("refresh_token")]
public string RefreshToken { get; set; }
}
}
}
........................
I recently found (Jan/2020) an article about all this. I'll add a link here....sometimes having 2 different people show/explain it helps someone trying to learn it.
http://luisquintanilla.me/2017/12/25/client-credentials-authentication-csharp/
This is likely due to your app exceeding the 65k method count, thus causing a dex error. There is no solution, other than enabling multidexing in your app.
You can create another script file separately for the functions and invoke the script file whenever you want to call the function. This will help you to keep your code clean.
Function Definition : Create a new script file
Function Call : Invoke the script file
As has been pointed out, the objects are created base-down upon construction. When the base object is being constructed, the derived object does not exist yet, so a virtual function override cannot work.
However, this can be solved with polymorphic getters that use static polymorphism instead of virtual functions if your getters return constants, or otherwise can be expressed in a static member function, This example uses CRTP (https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern).
template<typename DerivedClass>
class Base
{
public:
inline Base() :
foo(DerivedClass::getFoo())
{}
inline int fooSq() {
return foo * foo;
}
const int foo;
};
class A : public Base<A>
{
public:
inline static int getFoo() { return 1; }
};
class B : public Base<B>
{
public:
inline static int getFoo() { return 2; }
};
class C : public Base<C>
{
public:
inline static int getFoo() { return 3; }
};
int main()
{
A a;
B b;
C c;
std::cout << a.fooSq() << ", " << b.fooSq() << ", " << c.fooSq() << std::endl;
return 0;
}
With the use of static polymorphism, the base class knows which class' getter to call as the information is provided at compile-time.
Try this
<script type="text/javascript" src="//www.google.com/recaptcha/api/js/recaptcha_ajax.js"></script>
<script type="text/javascript">
function showRecaptcha() {
Recaptcha.create("YOURPUBLICKEY", 'captchadiv', {
theme: 'red',
callback: Recaptcha.focus_response_field
});
}
</script>
<div id="captchadiv"></div>
If you calll showRecaptcha the captchadiv will be populated with a new recaptcha instance.
Symfony 3.0
Prior to Symfony 2.6
you would use SecurityContext
.
SecurityContext
will be deprecated in Symfony 3.0
in favour of the AuthorizationChecker
.
For Symfony 2.6+
& Symfony 3.0
use AuthorizationChecker
.
// Get our Security Context Object - [deprecated in 3.0]
$security_context = $this->get('security.context');
# e.g: $security_context->isGranted('ROLE_ADMIN');
// Get our Token (representing the currently logged in user)
$security_token = $security_context->getToken();
# e.g: $security_token->getUser();
# e.g: $security_token->isAuthenticated();
# [Careful] ^ "Anonymous users are technically authenticated"
// Get our user from that security_token
$user = $security_token->getUser();
# e.g: $user->getEmail(); $user->isSuperAdmin(); $user->hasRole();
// Check for Roles on the $security_context
$isRoleAdmin = $security_context->isGranted('ROLE_ADMIN');
# e.g: (bool) true/false
security.context
becomes security.authorization_checker
.
We now get our token from security.token_storage
instead of the security.context
// [New 3.0] Get our "authorization_checker" Object
$auth_checker = $this->get('security.authorization_checker');
# e.g: $auth_checker->isGranted('ROLE_ADMIN');
// Get our Token (representing the currently logged in user)
// [New 3.0] Get the `token_storage` object (instead of calling upon `security.context`)
$token = $this->get('security.token_storage')->getToken();
# e.g: $token->getUser();
# e.g: $token->isAuthenticated();
# [Careful] ^ "Anonymous users are technically authenticated"
// Get our user from that token
$user = $token->getUser();
# e.g (w/ FOSUserBundle): $user->getEmail(); $user->isSuperAdmin(); $user->hasRole();
// [New 3.0] Check for Roles on the $auth_checker
$isRoleAdmin = $auth_checker->isGranted('ROLE_ADMIN');
// e.g: (bool) true/false
Read more here in the docs: AuthorizationChecker
How to do this in twig?: Symfony 2: How do I check if a user is not logged in inside a template?
As you've tagged this jQuery ...
First, put IDs on your input buttons and remove the inline handlers:
<input type="number" id="input" />
<input type="button" id="stop" value="stop"/>
<input type="button" id="start" value="start"/>
Then keep all of your state and functions encapsulated in a closure:
EDIT updated for a cleaner implementation, that also addresses @Esailija's concerns about use of setInterval()
.
$(function() {
var timer = null;
var input = document.getElementById('input');
function tick() {
++input.value;
start(); // restart the timer
};
function start() { // use a one-off timer
timer = setTimeout(tick, 1000);
};
function stop() {
clearTimeout(timer);
};
$('#start').bind("click", start); // use .on in jQuery 1.7+
$('#stop').bind("click", stop);
start(); // if you want it to auto-start
});
This ensures that none of your variables leak into global scope, and can't be modified from outside.
(Updated) working demo at http://jsfiddle.net/alnitak/Q6RhG/
i was facing the same issue with misspelled enctype="multipart/form-data", i was fix this exception by doing correct spelling . Current request is not a multipart request client side error so please check your form.
I have a use case that I don't quite see covered here, and will argue that this is a valid reason to use Thread.Sleep():
In a console application running cleanup jobs, I need to make a large amount of fairly expensive database calls, to a DB shared by thousands of concurrent users. In order to not hammer the DB and exclude others for hours, I'll need a pause between calls, in the order of 100 ms. This is not related to timing, just to yielding access to the DB for other threads.
Spending 2000-8000 cycles on context switching between calls that may take 500 ms to execute is benign, as does having 1 MB of stack for the thread, which runs as a single instance on a server.
Same as Sergii Pozharov's answer, but with a PowerShell cmdlet:
New-Service -Name "MyService" -BinaryPathName "C:\Path\to\myservice.exe"
See New-Service
for more customization.
This will only work for executables that already implement the Windows Services API.
In the old days, when we could assume that most computers used ASCII, we would just do
int i = c[0] - '0';
But in these days of Unicode, it's not a good idea. It was never a good idea if your code had to run on a non-ASCII computer.
Edit: Although it looks hackish, evidently it is guaranteed by the standard to work. Thanks @Earwicker.
The \
(backslash) in the .match
call is not properly escaped. It would be easier to use a regex literal though. Either will work:
var regex = "^\\s+$";
var regex = /^\s+$/;
Also note that +
will require at least one space. You may want to use *
.
you can write !important in front of background-color property value like this it will change the color of links.
.nav-link {
color: white !important;
}
From James Gosling in "The Java Programming Language":
"...There is exactly one parameter passing mode in Java - pass by value - and that keeps things simple. .."
Make sure the Path to executable
points to an actual executable (Right click service -> Properties -> General tab).
Via powershell (and sc.exe) you can install a service without pointing to an actual executable... ahem.
You can have a function something like this.
For Example, from 2012/12/27 to 2012/12/29 becomes 3 days. Likewise, from 2012/12/15 to 2013/01/15 becomes 2 months, because up to 2013/01/14 it's 1 month. from 15th it's 2nd month started.
You can remove the "=" in the second if condition, if you do not want to include both days in the calculation. i.e, from 2012/12/15 to 2013/01/15 is 1 month.
public int GetMonths(DateTime startDate, DateTime endDate)
{
if (startDate > endDate)
{
throw new Exception("Start Date is greater than the End Date");
}
int months = ((endDate.Year * 12) + endDate.Month) - ((startDate.Year * 12) + startDate.Month);
if (endDate.Day >= startDate.Day)
{
months++;
}
return months;
}
Guava style:
Set<String> myset = myMap.keySet();
FluentIterable.from(mySet).toArray(String.class);
more info: https://google.github.io/guava/releases/19.0/api/docs/com/google/common/collect/FluentIterable.html
Use PHP DOM to parse and add <br/>
in it. Like this:
$html = '<textarea> put returns between paragraphs
for linebreak add 2 spaces at end
indent code by 4 spaces
quote by placing > at start of line
</textarea>';
//parsing begins here:
$doc = new DOMDocument();
@$doc->loadHTML($html);
$nodes = $doc->getElementsByTagName('textarea');
//get text and add <br/> then remove last <br/>
$lines = $nodes->item(0)->nodeValue;
//split it by newlines
$lines = explode("\n", $lines);
//add <br/> at end of each line
foreach($lines as $line)
$output .= $line . "<br/>";
//remove last <br/>
$output = rtrim($output, "<br/>");
//display it
var_dump($output);
This outputs:
string ' put returns between paragraphs
<br/>for linebreak add 2 spaces at end
<br/>indent code by 4 spaces
<br/>quote by placing > at start of line
' (length=141)
This is the given array.
int myIntegerNumbers[] = {1,2,3,4,5,6,7,8,9,10};
// If you want print the last element in the array.
int lastNumerOfArray= myIntegerNumbers[9];
Log.i("MyTag", lastNumerOfArray + "");
// If you want to print the number of element in the array.
Log.i("MyTag", "The number of elements inside" +
"the array " +myIntegerNumbers.length);
// Second method to print the last element inside the array.
Log.i("MyTag", "The last elements inside " +
"the array " + myIntegerNumbers[myIntegerNumbers.length-1]);
Playing with above answers, this one works for me
REPLACE(REPLACE(column_name , '\n', ''), '\r', '')
Undefined offset error in PHP is Like 'ArrayIndexOutOfBoundException' in Java.
example:
<?php
$arr=array('Hello','world');//(0=>Hello,1=>world)
echo $arr[2];
?>
error: Undefined offset 2
It means you're referring to an array key that doesn't exist. "Offset" refers to the integer key of a numeric array, and "index" refers to the string key of an associative array.
you can use this command by getting your data. this will extract your data...
select * from employees where to_char(es_date,'dd/mon/yyyy')='17/jun/2003';
http://msdn.microsoft.com/en-us/library/ms191503.aspx
i would advice to create table with unique name before bulk inserting.
I struggle with this constantly, as it seems it is a different solution every time a new version of Eclipse is released. Here is a solution that doesn't involve displaying your password in the .ini file.
In Eclipse go to Window > Preferences > General > security Secure Storage
In the Password tab click on the "Change Password" button Fill in the security questions. Don't make them to hard. Finish
Now go to Window > Preferences > General > Network connections. Choose "Manual" from drop down. Double click "HTTP" option and enter the Host, Port, Username and Password. Finish
Now go to Window > Preferences > General > security Secure Storage
In the Password tab click on the "Recover Password" button Fill in the security questions. Finish
Eclipse now stores your username and password
The best way to wait for page loads when using the Java bindings for WebDriver is to use the Page Object design pattern with PageFactory. This allows you to utilize the AjaxElementLocatorFactory
which to put it simply acts as a global wait for all of your elements. It has limitations on elements such as drop-boxes or complex javascript transitions but it will drastically reduce the amount of code needed and speed up test times. A good example can be found in this blogpost. Basic understanding of Core Java is assumed.
http://startingwithseleniumwebdriver.blogspot.ro/2015/02/wait-in-page-factory.html
You must put your mathematical expressions inside $(( )).
One-liner:
for i in {1..600}; do wget http://example.com/search/link$(($i % 5)); done;
Multiple lines:
for i in {1..600}; do
wget http://example.com/search/link$(($i % 5))
done
There are numerous Flexbox bugs in IE11 and other browsers - see flexbox on Can I Use -> Known Issues, where the following are listed under IE11:
display: flex
and flex-direction: column
will not properly calculate their flexed childrens' sizes if the container has min-height
but no explicit height
propertymin-height
is usedAlso see Philip Walton's Flexbugs list of issues and workarounds.
SELECT * INTO newtable FROM oldtable where 1=2
Where 1=2
is used when you need to copy the complete structure of a
table without copying the data.
SELECT * INTO newtable FROM oldtable
To create a table with data you can use this statement.
You can use the CSS style white-space:
white-space: nowrap;
The table normally contains multiple rows. Use a loop and use row.Field<string>(0)
to access the value of each row.
foreach(DataRow row in dt.Rows)
{
string file = row.Field<string>("File");
}
You can also access it via index:
foreach(DataRow row in dt.Rows)
{
string file = row.Field<string>(0);
}
If you expect only one row, you can also use the indexer of DataRowCollection
:
string file = dt.Rows[0].Field<string>(0);
Since this fails if the table is empty, use dt.Rows.Count
to check if there is a row:
if(dt.Rows.Count > 0)
file = dt.Rows[0].Field<string>(0);
What operating system is this? The answer might depend on the OS involved. However, it looks like you need to find this BLAS library and install it. It doesn't seem to be in PIP (you'll have to do it by hand thus), but if you install it, it ought let you progress your SciPy install.
Pretty strange, it should work out of the box as the ".modal-backdrop" class is defined top-level in the css.
<div class="modal-backdrop"></div>
Made a small demo: http://jsfiddle.net/PfBnq/
Deletes all child fields in the database then we use on_delete as so:
class user(models.Model):
commodities = models.ForeignKey(commodity, on_delete=models.CASCADE)
Try one of these:
gdb -p 12271
gdb /path/to/exe 12271
gdb /path/to/exe
(gdb) attach 12271
Use GitZip online tool. It allows to download a sub-directory of a github repository as a zip file. No git commands needed!
According to comments: netcfg was removed in Android 6
Try
adb shell netcfg
Or
adb shell <device here or leave out if one device>
shell@android:/ $netcfg
For those people using Python, you may consider using Selenium Wire, which can set request headers, as well as provide you with the ability to inspect requests and responses.
from seleniumwire import webdriver # Import from seleniumwire
# Create a new instance of the Firefox driver (or Chrome)
driver = webdriver.Firefox()
# Create a request interceptor
def interceptor(request):
del request.headers['Referer'] # Delete the header first
request.headers['Referer'] = 'some_referer'
# Set the interceptor on the driver
driver.request_interceptor = interceptor
# All requests will now use 'some_referer' for the referer
driver.get('https://mysite')
If you want to add it to your .gitconfig
do this:
[alias]
rma = !git ls-files --deleted -z | xargs -0 git rm
Then all you have to do is run:
git rma
For database separate out Data Access Service that will do all DB work with simple API and avoid shared state.
Separating routes.setup looks like overhead. I would prefer to place a configuration based routing instead. And configure routes in .json or with annotations.
This highly depends on the compiler's implementation.
However, it also depends on what you use.
Lets consider next functions :
bool foo1( const std::string v )
{
return v.empty();
}
bool foo2( const std::string & v )
{
return v.empty();
}
These functions are implemented in a separate compilation unit in order to avoid inlining. Then :
1. If you pass a literal to these two functions, you will not see much difference in performances. In both cases, a string object has to be created
2. If you pass another std::string object, foo2
will outperform foo1
, because foo1
will do a deep copy.
On my PC, using g++ 4.6.1, I got these results :
If you're using Lodash, you can clone the prop before returning it. This pattern is helpful if you modify that prop on both the parent and child.
Let's say we have prop list on component grid.
In Parent Component
<grid :list.sync="list"></grid>
In Child Component
props: ['list'],
methods:{
doSomethingOnClick(entry){
let modifiedList = _.clone(this.list)
modifiedList = _.uniq(modifiedList) // Removes duplicates
this.$emit('update:list', modifiedList)
}
}
(Edited) Rounding integers with floating point is the easiest solution to this problem; however, depending on the problem set is may be possible. For example, in embedded systems the floating point solution may be too costly.
Doing this using integer math turns out to be kind of hard and a little unintuitive. The first posted solution worked okay for the the problem I had used it for but after characterizing the results over the range of integers it turned out to be very bad in general. Looking through several books on bit twiddling and embedded math return few results. A couple of notes. First, I only tested for positive integers, my work does not involve negative numerators or denominators. Second, and exhaustive test of 32 bit integers is computational prohibitive so I started with 8 bit integers and then mades sure that I got similar results with 16 bit integers.
I started with the 2 solutions that I had previously proposed:
#define DIVIDE_WITH_ROUND(N, D) (((N) == 0) ? 0:(((N * 10)/D) + 5)/10)
#define DIVIDE_WITH_ROUND(N, D) (N == 0) ? 0:(N - D/2)/D + 1;
My thought was that the first version would overflow with big numbers and the second underflow with small numbers. I did not take 2 things into consideration. 1.) the 2nd problem is actually recursive since to get the correct answer you have to properly round D/2. 2.) In the first case you often overflow and then underflow, the two canceling each other out.
Here is an error plot of the two (incorrect) algorithms:
This plot shows that the first algorithm is only incorrect for small denominators (0 < d < 10). Unexpectedly it actually handles large numerators better than the 2nd version.
Here is a plot of the 2nd algorithm:
As expected it fails for small numerators but also fails for more large numerators than the 1st version.
Clearly this is the better starting point for a correct version:
#define DIVIDE_WITH_ROUND(N, D) (((N) == 0) ? 0:(((N * 10)/D) + 5)/10)
If your denominators is > 10 then this will work correctly.
A special case is needed for D == 1, simply return N. A special case is needed for D== 2, = N/2 + (N & 1) // Round up if odd.
D >= 3 also has problems once N gets big enough. It turns out that larger denominators only have problems with larger numerators. For 8 bit signed number the problem points are
if (D == 3) && (N > 75))
else if ((D == 4) && (N > 100))
else if ((D == 5) && (N > 125))
else if ((D == 6) && (N > 150))
else if ((D == 7) && (N > 175))
else if ((D == 8) && (N > 200))
else if ((D == 9) && (N > 225))
else if ((D == 10) && (N > 250))
(return D/N for these)
So in general the the pointe where a particular numerator gets bad is somewhere around
N > (MAX_INT - 5) * D/10
This is not exact but close. When working with 16 bit or bigger numbers the error < 1% if you just do a C divide (truncation) for these cases.
For 16 bit signed numbers the tests would be
if ((D == 3) && (N >= 9829))
else if ((D == 4) && (N >= 13106))
else if ((D == 5) && (N >= 16382))
else if ((D == 6) && (N >= 19658))
else if ((D == 7) && (N >= 22935))
else if ((D == 8) && (N >= 26211))
else if ((D == 9) && (N >= 29487))
else if ((D == 10) && (N >= 32763))
Of course for unsigned integers MAX_INT would be replaced with MAX_UINT. I am sure there is an exact formula for determining the largest N that will work for a particular D and number of bits but I don't have any more time to work on this problem...
(I seem to be missing this graph at the moment, I will edit and add later.)
This is a graph of the 8 bit version with the special cases noted above:![8 bit signed with special cases for 0 < N <= 10
3
Note that for 8 bit the error is 10% or less for all errors in the graph, 16 bit is < 0.1%.
The documentation for Platform
width()
and height()
, it's stated that these methods use window.innerWidth
and window.innerHeight
respectively. But using the methods are preferred since the dimensions are cached values, which reduces the chance of multiple and expensive DOM reads.
import { Platform } from 'ionic-angular';
...
private width:number;
private height:number;
constructor(private platform: Platform){
platform.ready().then(() => {
this.width = platform.width();
this.height = platform.height();
});
}
Just to give an update, there are minor changes for Visual Studio 2015 users.
To use or install package manually, go to Tools -> Options -> NuGet Package Manager -> Package Sources
Click the Add button, choose the Source, and don't forget to click "Update" as it will update the folder location for your packages, edit your desired Name of your package source if you want:
To choose your added package, right click your solution and select "Manage Nuget Packages"
The drop down list is on the right and choose Browse to browse your packages that you specified on your folder source. If there is no nuget package on that folder source, this will be empty:
def cube(x):
if 0<=x: return x**(1./3.)
return -(-x)**(1./3.)
print (cube(8))
print (cube(-8))
Here is the full answer for both negative and positive numbers.
>>>
2.0
-2.0
>>>
Or here is a one-liner;
root_cube = lambda x: x**(1./3.) if 0<=x else -(-x)**(1./3.)
Just to add my two cents' worth :-) I recently learned a way of handling anonymous objects. It can only be used when targeting the .NET 4 framework and that only when adding a reference to System.Web.dll but then it's quite simple:
...
using System.Web.Routing;
...
class Program
{
static void Main(string[] args)
{
object anonymous = CallMethodThatReturnsObjectOfAnonymousType();
//WHAT DO I DO WITH THIS?
//I know! I'll use a RouteValueDictionary from System.Web.dll
RouteValueDictionary rvd = new RouteValueDictionary(anonymous);
Console.WriteLine("Hello, my name is {0} and I am a {1}", rvd["Name"], rvd["Occupation"]);
}
private static object CallMethodThatReturnsObjectOfAnonymousType()
{
return new { Id = 1, Name = "Peter Perhac", Occupation = "Software Developer" };
}
}
In order to be able to add a reference to System.Web.dll you'll have to follow rushonerok's advice : Make sure your [project's] target framework is ".NET Framework 4" not ".NET Framework 4 Client Profile".
The Docker Registry API has an endpoint to list all tags.
Looks like Tutum has a similar endpoint, as well as a way to access via tutum-cli.
With the tutum-cli, try the following:
tutum tag list <uuid>
You can do this pretty easily:
@app.route("/")
def home():
resp = flask.Response("Foo bar baz")
resp.headers['Access-Control-Allow-Origin'] = '*'
return resp
Look at flask.Response and flask.make_response()
But something tells me you have another problem, because the after_request
should have handled it correctly too.
EDIT
I just noticed you are already using make_response
which is one of the ways to do it. Like I said before, after_request
should have worked as well. Try hitting the endpoint via curl and see what the headers are:
curl -i http://127.0.0.1:5000/your/endpoint
You should see
> curl -i 'http://127.0.0.1:5000/'
HTTP/1.0 200 OK
Content-Type: text/html; charset=utf-8
Content-Length: 11
Access-Control-Allow-Origin: *
Server: Werkzeug/0.8.3 Python/2.7.5
Date: Tue, 16 Sep 2014 03:47:13 GMT
Noting the Access-Control-Allow-Origin header.
EDIT 2
As I suspected, you are getting a 500 so you are not setting the header like you thought. Try adding app.debug = True
before you start the app and try again. You should get some output showing you the root cause of the problem.
For example:
@app.route("/")
def home():
resp = flask.Response("Foo bar baz")
user.weapon = boomerang
resp.headers['Access-Control-Allow-Origin'] = '*'
return resp
Gives a nicely formatted html error page, with this at the bottom (helpful for curl command)
Traceback (most recent call last):
...
File "/private/tmp/min.py", line 8, in home
user.weapon = boomerang
NameError: global name 'boomerang' is not defined
If I get 'someObject', say via
someObject <- myMagicFunction(...)
then I usually proceed by
class(someObject)
str(someObject)
which can be followed by head(), summary(), print(), ... depending on the class you have.
Yes, as you can see the support-package instantiates the fragments too (when they get destroyed and re-opened). Your Fragment
subclasses need a public empty constructor as this is what's being called by the framework.
@Paul Cavacas, I had the same issue and I solved by setting the Input()
decorator above the getter.
@Input('allowDays')
get in(): any {
return this._allowDays;
}
//@Input('allowDays')
// not working
set in(val) {
console.log('allowDays = '+val);
this._allowDays = val;
}
See this plunker: https://plnkr.co/edit/6miSutgTe9sfEMCb8N4p?p=preview
Is synchronous on all cases.
Example of blocking thread with Promises
:
const test = () => new Promise((result, reject) => {
const time = new Date().getTime() + (3 * 1000);
console.info('Test start...');
while (new Date().getTime() < time) {
// Waiting...
}
console.info('Test finish...');
});
test()
.then(() => console.info('Then'))
.finally(() => console.info('Finally'));
console.info('Finish!');
The output will be:
Test start...
Test finish...
Finish!
This will give you true if url does not return 200 OK
function check_404($url) {
$headers=get_headers($url, 1);
if ($headers[0]!='HTTP/1.1 200 OK') return true; else return false;
}
Open the file with a FileInputStream
, then use an InputStreamReader
with the UTF-8 Charset
to read characters from the stream, and use a BufferedReader
to read lines, e.g. via BufferedReader#readLine
, which will give you a string. Once you have the string, you can check for characters that aren't what you consider to be printable.
E.g. (without error checking), using try-with-resources (which is in vaguely modern Java version):
String line;
try (
InputStream fis = new FileInputStream("the_file_name");
InputStreamReader isr = new InputStreamReader(fis, Charset.forName("UTF-8"));
BufferedReader br = new BufferedReader(isr);
) {
while ((line = br.readLine()) != null) {
// Deal with the line
}
}
Just adding this answer to help Google save some punter the hours I have spent to get here. I used ILMerge on my .Net 4.0 project, without the /targetplatform option set, assuming it would be detected correctly from my main assembly. I then had complaints from users only on Windows XP aka WinXP. This now makes sense as XP will never have > .Net 4.0 installed whereas most newer OSes will. So if your XP users are having issues, see the fixes above.
$timeFirst = strtotime('2011-05-12 18:20:20');
$timeSecond = strtotime('2011-05-13 18:20:20');
$differenceInSeconds = $timeSecond - $timeFirst;
You will then be able to use the seconds to find minutes, hours, days, etc.
change it to chart.googleapis.com for the path, otherwise SSL won't work
In my case I had to open the file:
C:\...\Documents\IISExpress\config\applicationhost.config
I had this inside the file:
<authentication>
<anonymousAuthentication enabled="true" User="" />
I just removed the User=""
part. I really don't know how this thing got there... :)
Note: Make sure you have something like this in the end of applicationhost.config
:
.
.
.
<location path="MyCompany.MyProjectName.Web">
<system.webServer>
<security>
<authentication>
<anonymousAuthentication enabled="true" />
<windowsAuthentication enabled="false" />
</authentication>
</security>
</system.webServer>
</location>
</configuration>
You may also want to take a look here: https://stackoverflow.com/a/10041779/114029
Now I can access the login page as expected.
Suppose your class is called MyStudent. Here's how you define your class constructor:
Public Class MyStudent
Public StudentId As Integer
'Here's the class constructor:
Public Sub New(newStudentId As Integer)
StudentId = newStudentId
End Sub
End Class
Here's how you call it:
Dim student As New MyStudent(studentId)
Of course, your class constructor can contain as many or as few arguments as you need--even none, in which case you leave the parentheses empty. You can also have several constructors for the same class, all with different combinations of arguments. These are known as different "signatures" for your class constructor.
<table width="400px">
<tr>
<td width="100px"></td>
<td width="100px"></td>
<td width="100px"></td>
<td width="100px"></td>
</tr>
</table>
For variable number of columns use %
<table width="100%">
<tr>
<td width="(100/x)%"></td>
</tr>
</table>
where 'x' is number of columns
you can use html entity as •
IE9 currently lacks CSS3 gradient support. However, here is a nice workaround solution using PHP to return an SVG (vertical linear) gradient instead, which allows us to keep our design in our stylesheets.
<?php
$from_stop = isset($_GET['from']) ? $_GET['from'] : '000000';
$to_stop = isset($_GET['to']) ? $_GET['to'] : '000000';
header('Content-type: image/svg+xml; charset=utf-8');
echo '<?xml version="1.0"?>
';
?>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="100%" height="100%">
<defs>
<linearGradient id="linear-gradient" x1="0%" y1="0%" x2="0%" y2="100%">
<stop offset="0%" stop-color="#<?php echo $from_stop; ?>" stop-opacity="1"/>
<stop offset="100%" stop-color="#<?php echo $to_stop; ?>" stop-opacity="1"/>
</linearGradient>
</defs>
<rect width="100%" height="100%" fill="url(#linear-gradient)"/>
</svg>
Simply upload it to your server and call the URL like so:
gradient.php?from=f00&to=00f
This can be used in conjunction with your CSS3 gradients like this:
.my-color {
background-color: #f00;
background-image: url(gradient.php?from=f00&to=00f);
background-image: -webkit-gradient(linear, left top, left bottom, from(#f00), to(#00f));
background-image: -webkit-linear-gradient(top, #f00, #00f);
background-image: -moz-linear-gradient(top, #f00, #00f);
background-image: linear-gradient(top, #f00, #00f);
}
If you need to target below IE9, you can still use the old proprietary 'filter' method:
.ie7 .my-color, .ie8 .my-color {
filter: progid:DXImageTransform.Microsoft.Gradient(startColorStr="#ff0000", endColorStr="#0000ff");
}
Of course you can amend the PHP code to add more stops on the gradient, or make it more sophisticated (radial gradients, transparency etc.) but this is great for those simple (vertical) linear gradients.
You can use web-based protocol handlers for the links as per https://sharepoint.stackexchange.com/questions/70178/how-does-sharepoint-2013-enable-editing-of-documents-for-chrome-and-fire-fox
Basically, just prepend ms-word:ofe|u|
to the links to your SharePoint hosted Word documents.
You can do objects the JavaScript way... It makes no sense but it works ;)
>>> def FakeObject():
... def test():
... print "foo"
... FakeObject.test = test
... return FakeObject
>>> x = FakeObject()
>>> x.test()
foo
You can create extension to use delay function easily (Syntax: Swift 4.2+)
extension UIViewController {
func delay(_ delay:Double, closure:@escaping ()->()) {
DispatchQueue.main.asyncAfter(
deadline: DispatchTime.now() + Double(Int64(delay * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC), execute: closure)
}
}
How to use in UIViewController
self.delay(0.1, closure: {
//execute code
})
Had the same issue but in my case the fix was slightly different, as no updates were showing for the Android SDK Tools. I opened the Virtual Device Manager and realised my emulator was running API 27. Checked back in the SDK Manager and I didn't have API 27 SDK Tools installed at all. Installing v 27 resolved the issue for me.
That is taking the parameter by reference. So in the first case you are taking a pointer parameter by reference so whatever modification you do to the value of the pointer is reflected outside the function. Second is the simlilar to first one with the only difference being that it is a double pointer. See this example:
void pass_by_value(int* p)
{
//Allocate memory for int and store the address in p
p = new int;
}
void pass_by_reference(int*& p)
{
p = new int;
}
int main()
{
int* p1 = NULL;
int* p2 = NULL;
pass_by_value(p1); //p1 will still be NULL after this call
pass_by_reference(p2); //p2 's value is changed to point to the newly allocate memory
return 0;
}
Try moving the --exclude
to before the include.
tar -pczf MyBackup.tar.gz --exclude "/home/user/public_html/tmp/" /home/user/public_html/
In question, it is not mentioned which OS user is using (Windows/Linux/Mac)
As there are couple of answers which will work flawlessly on Mac and Linux.
Below command can be used in case the user is trying to find the version of a python package on windows.
In PowerShell use below command :
pip list | findstr <PackageName>
Example:- pip list | findstr requests
Output : requests 2.18.4