You can use the standard JSON object, available in Javascript:
var a: any = {};
a.x = 10;
a.y='hello';
var jsonString = JSON.stringify(a);
When I had this issue the cause was a relative reference to template files when using the ui.bootstrap.modal module.
templateUrl: 'js/templates/modal.html'
This works from a root domain (www.example.com) but when a path is added (www.example.com/path/) the reference breaks. The answer in my case was simply to making the reference absolute (js/ -> /js/).
templateUrl: '/js/templates/modal.html'
regarding Kevin answer to write in a folder tmp
, it should be like this:
with open('./tmp/metadata.pdf', 'wb') as f:
f.write(response.content)
he forgot .
before the address and of-course your folder tmp
should have been created already
You can't do it with FrameLayout.
From spec:
http://developer.android.com/reference/android/widget/FrameLayout.html
"FrameLayout is designed to block out an area on the screen to display a single item. You can add multiple children to a FrameLayout, but all children are pegged to the top left of the screen."
Why not to use RelativeLayout?
<?php
require_once 'PHPUnit/Framework.php';
class ExceptionTest extends PHPUnit_Framework_TestCase
{
public function testException()
{
$this->expectException(InvalidArgumentException::class);
// or for PHPUnit < 5.2
// $this->setExpectedException(InvalidArgumentException::class);
//...and then add your test code that generates the exception
exampleMethod($anInvalidArgument);
}
}
expectException() PHPUnit documentation
PHPUnit author article provides detailed explanation on testing exceptions best practices.
you can implement View.onClickListener and override onClick method and set this onclicklistener to the Layout
ConstraintLayout constraintLayout;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
constraintLayout = findViewById(R.id.layout);
constraintLayout.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if(v.getId()==R.id.layout){
InputMethodManager inm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
inm.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),0);
}
}
As others have said, simply restarting the terminal after you've made changes should reset and changes you've made to your ~/.zshrc file. For instance after adding function to open visual studio:
function code {
if [[ $# = 0 ]]
then
open -a "Visual Studio Code"
else
local argPath="$1"
[[ $1 = /* ]] && argPath="$1" || argPath="$PWD/${1#./}"
open -a "Visual Studio Code" "$argPath"
fi
}
I was able to use the keyword code to open the program from the command line.
Long press on Google play application
Now again click on Google Play app, It will work now.
Compare
echo "test" | wc
to
mkdnod apipe p
wc apipe
wc will block until
echo "test" > apipe
executes
My version of a ping function:
import platform, subprocess
def ping(host_or_ip, packets=1, timeout=1000):
''' Calls system "ping" command, returns True if ping succeeds.
Required parameter: host_or_ip (str, address of host to ping)
Optional parameters: packets (int, number of retries), timeout (int, ms to wait for response)
Does not show any output, either as popup window or in command line.
Python 3.5+, Windows and Linux compatible (Mac not tested, should work)
'''
# The ping command is the same for Windows and Linux, except for the "number of packets" flag.
if platform.system().lower() == 'windows':
command = ['ping', '-n', str(packets), '-w', str(timeout), host_or_ip]
# run parameters: capture output, discard error messages, do not show window
result = subprocess.run(command, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, creationflags=0x08000000)
# 0x0800000 is a windows-only Popen flag to specify that a new process will not create a window.
# On Python 3.7+, you can use a subprocess constant:
# result = subprocess.run(command, capture_output=True, creationflags=subprocess.CREATE_NO_WINDOW)
# On windows 7+, ping returns 0 (ok) when host is not reachable; to be sure host is responding,
# we search the text "TTL=" on the command output. If it's there, the ping really had a response.
return result.returncode == 0 and b'TTL=' in result.stdout
else:
command = ['ping', '-c', str(packets), '-w', str(timeout), host_or_ip]
# run parameters: discard output and error messages
result = subprocess.run(command, stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
return result.returncode == 0
Feel free to use it as you will.
For MS Access: Launch a hidden form with Me.TimerInterval set and a Form_Timer event handler. Put your to-be-delayed code in the Form_Timer routine - exiting the routine after each execution.
E.g.:
Private Sub Form_Load()
Me.TimerInterval = 30000 ' 30 sec
End Sub
Private Sub Form_Timer()
Dim lngTimerInterval As Long: lngTimerInterval = Me.TimerInterval
Me.TimerInterval = 0
'<Your Code goes here>
Me.TimerInterval = lngTimerInterval
End Sub
"Your Code goes here" will be executed 30 seconds after the form is opened and 30 seconds after each subsequent execution.
Close the hidden form when done.
For MySql 8 you can use following script:
SET GLOBAL validate_password.LENGTH = 4;
SET GLOBAL validate_password.policy = 0;
SET GLOBAL validate_password.mixed_case_count = 0;
SET GLOBAL validate_password.number_count = 0;
SET GLOBAL validate_password.special_char_count = 0;
SET GLOBAL validate_password.check_user_name = 0;
ALTER USER 'user'@'localhost' IDENTIFIED BY 'pass';
FLUSH PRIVILEGES;
I'm using: Win Server 2012 R2 / IIS 8.5 / MVC4 / .Net 4.5
If none of the above worked then try this:
Uncheck "Precompile during Publishing"
This kicked my butt for a few days.
As @Rajib pointed out, You can't access your env variables using config('myVariable')
config
directory. I usually add to config/app.php
Config::get('fileWhichContainsVariable.Variable');
using the Config
FacadeProbably You will have to clear config cache using php artisan config:clear
AND
you will also have to restart server.
I agree as well, using a timer is the best option. I have tried a solution similar to yours in the past and started having issues where the loop would misfire, and I would have to wait for another Thread.Sleep() before it would fire again. Also, it did cause all sorts of issues with stopping the service, I would get constant errors about how it wasn't responding and had to be closed.
@Prashanth's code should be exactly what you need.
To kill from the application, you can do:
android.os.Process.killProcess(android.os.Process.myPid());
if your list looks like this: [1,2,3] you can do:
lst = [1,2,3]
df = pd.DataFrame([lst])
df.columns =['col1','col2','col3']
df
to get this:
col1 col2 col3
0 1 2 3
alternatively you can create a column as follows:
import numpy as np
df = pd.DataFrame(np.array([lst]).T)
df.columns =['col1']
df
to get this:
col1
0 1
1 2
2 3
Try this one to push basic authentication at url:
curl -i http://username:[email protected]/api/users -H "Authorization: Bearer mytoken123"
^^^^^^^^^^^^^^^^^^
If above one doesn't work, then you have nothing to do with it. So try the following alternates.
You can pass the token under another name. Because you are handling the authorization from your Application. So you can easily use this flexibility for this special purpose.
curl -i http://dev.myapp.com/api/users \
-H "Authorization: Basic Ym9zY236Ym9zY28=" \
-H "Application-Authorization: mytoken123"
Notice I have changed the header into Application-Authorization
. So from your application catch the token under that header and process what you need to do.
Another thing you can do is, to pass the token
through the POST
parameters and grab the parameter's value from the Server side. For example passing token with curl post parameter:
-d "auth-token=mytoken123"
This solution could seem very long, but it's not. I just included many examples so that everything was clear. It worked for me in Mavericks OS.
Note: I combined and edited some of the answers shown above, added some examples and format and posted the result, so the credit goes mostly to the creators of the original posts.
Download Maven from here.
Open the Terminal.
Extract the file you just downloaded to the location you want, either manually or by typing the following lines in the Terminal (fill the required data):
mv [Your file name] [Destination location]/
tar -xvf [Your file name]
For example, if our file is named "apache-maven-3.2.1-bin.tar
" (Maven version 3.2.1) and we want to locate it in the "/Applications
" directory, then we should type the following lines in Terminal:
mv apache-maven-3.2.1-bin.tar /Applications/
tar -xvf apache-maven-3.2.1-bin.tar
If you don't have any JDK (Java Development Kit) installed on your computer, install one.
Type "java -version
" in Terminal. You should see something like this:
java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)
Remember your java version (in the example, 1.8.0).
Type "cd ~/
" to go to your home folder.
Type "touch .bash_profile
".
Type "open -e .bash_profile
" to open .bash_profile in TextEdit.
Type the following in TextEdit (copy everything and replace the required data):
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk[Your Java version].jdk/Contents/Home
export M2_HOME=[Your file location]/apache-maven-[Your Maven version]/
export PATH=$PATH:$M2_HOME/bin
alias mvn='$M2_HOME/bin/mvn'
For example, in our case we would replace "[Your Java version]
" with "1.8.0
" (value got in step 5), "[Your file location]
" with "/Applications
" (value used as "Destination Location" in step 3) and "[Your Maven version]
" with "3.2.1
" (Maven version observed in step 3), resulting in the following code:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0.jdk/Contents/Home
export M2_HOME=/Applications/apache-maven-3.2.1/
export PATH=$PATH:$M2_HOME/bin
alias mvn='$M2_HOME/bin/mvn'
Save your changes
Type "source .bash_profile
" to reload .bash_profile and update any functions you add.
Type mvn -version
. If successful you should see the following:
Apache Maven [Your Maven version] ([Some weird stuff. Don't worry about this])
Maven home: [Your file location]/apache-maven-[Your Maven version]
Java version: [You Java version], vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk[Your Java version].jdk/Contents/Home/jre
[Some other stuff which may vary depending on the configuration and the OS of the computer]
In our example, the result would be the following:
Apache Maven 3.2.1 (ea8b2b07643dbb1b84b6d16e1f08391b666bc1e9; 2014-02-14T18:37:52+01:00)
Maven home: /Applications/apache-maven-3.2.1
Java version: 1.8.0, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0</b>.jdk/Contents/Home/jre
Default locale: es_ES, platform encoding: UTF-8
OS name: "mac os x", version: "10.9.2", arch: "x86_64", family: "mac"
I though the perfect solution would be to have a timer handle the delayed action. FxCop doesn't like when you have an interval less then one second. I need to delay my actions until AFTER my DataGrid has completed sorting by column. I figured a one-shot timer (AutoReset = false) would be the solution, and it works perfectly. AND, FxCop will not let me suppress the warning!
In MySQL integer int(11)
has size is 4 bytes which equals 32 bit.
Signed value is : -2^(32-1) to 0 to 2^(32-1)-1
= -2147483648 to 0 to 2147483647
Unsigned values is : 0 to 2^32-1
= 0 to 4294967295
You can give to_s
a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum
and BigNum
were unified in the Integer
class.
If you are using an older ruby check the documentation of FixNum#to_s
and BigNum#to_s
This problem is because of your https that means SSL certification. Try on Localhost.
The very simple "catch all" solution is this:
System.Net.ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
The solution from sebastian-castaldi is a bit more detailed.
If you don't have a company, leave your name, it doesn't matter as long as both bundle id in info.plist file and the one you've submitted in iTunes Connect match.
In Bundle ID Suffix you should write full name of bundle ID.
Example:
Bundle ID suffix = thebestapp (NOT CORRECT!!!!)
Bundle ID suffix = com.awesomeapps.thebestapp (CORRECT!!)
The reason for this is explained in the Developer Portal:
The App ID string contains two parts separated by a period (.) — an App ID Prefix (your Team ID by default, e.g.
ABCDE12345
), and an App ID Suffix (a Bundle ID search string, e.g.com.mycompany.appname
). [emphasis added]
So in this case the suffix is the full string com.awesomeapps.thebestapp
.
Assuming Python 3 (in Python 2, this difference is a little less well-defined) - a string is a sequence of characters, ie unicode codepoints; these are an abstract concept, and can't be directly stored on disk. A byte string is a sequence of, unsurprisingly, bytes - things that can be stored on disk. The mapping between them is an encoding - there are quite a lot of these (and infinitely many are possible) - and you need to know which applies in the particular case in order to do the conversion, since a different encoding may map the same bytes to a different string:
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-16')
'?????'
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-8')
'to??o?'
Once you know which one to use, you can use the .decode()
method of the byte string to get the right character string from it as above. For completeness, the .encode()
method of a character string goes the opposite way:
>>> 'to??o?'.encode('utf-8')
b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'
There are many formats for date in SQL which are being specified. Refer https://msdn.microsoft.com/en-in/library/ms187928.aspx
Converting and comparing varchar column with selected dates.
Syntax:
SELECT * FROM tablename where CONVERT(datetime,columnname,103)
between '2016-03-01' and '2016-03-03'
In CONVERT(DATETIME,COLUMNNAME,103) "103" SPECIFIES THE DATE FORMAT as dd/mm/yyyy
json
is a built-in module, you don't need to install it with pip
.
Depends on what your native code does, but v7a has support for hardware floating point operations, which makes a huge difference. armeabi will work fine on all devices, but will be a lot slower, and won't take advantage of newer devices' CPU capabilities. Do take some benchmarks for your particular application, but removing the armeabi-v7a binaries is generally not a good idea. If you need to reduce size, you might want to have two separate apks for older (armeabi) and newer (armeabi-v7a) devices.
As a newbie in React world, I came across a similar issues where I could not edit
the textarea and struggled
with binding. It's worth knowing about controlled
and uncontrolled
elements when it comes to react.
The value of the following uncontrolled textarea
cannot be changed because of value
<textarea type="text" value="some value"
onChange={(event) => this.handleOnChange(event)}></textarea>
The value of the following uncontrolled textarea
can be changed because of use of defaultValue
or no value attribute
<textarea type="text" defaultValue="sample"
onChange={(event) => this.handleOnChange(event)}></textarea>
<textarea type="text"
onChange={(event) => this.handleOnChange(event)}></textarea>
The value of the following controlled textarea
can be changed because of how
value is mapped to a state as well as the onChange
event listener
<textarea value={this.state.textareaValue}
onChange={(event) => this.handleOnChange(event)}></textarea>
Here is my solution using different syntax. I prefer the auto-bind
than manual binding however, if I were to not use {(event) => this.onXXXX(event)}
then that would cause the content of textarea
to be not editable OR the event.preventDefault()
does not work as expected. Still a lot to learn I suppose.
class Editor extends React.Component {
constructor(props) {
super(props)
this.state = {
textareaValue: ''
}
}
handleOnChange(event) {
this.setState({
textareaValue: event.target.value
})
}
handleOnSubmit(event) {
event.preventDefault();
this.setState({
textareaValue: this.state.textareaValue + ' [Saved on ' + (new Date()).toLocaleString() + ']'
})
}
render() {
return <div>
<form onSubmit={(event) => this.handleOnSubmit(event)}>
<textarea rows={10} cols={30} value={this.state.textareaValue}
onChange={(event) => this.handleOnChange(event)}></textarea>
<br/>
<input type="submit" value="Save"/>
</form>
</div>
}
}
ReactDOM.render(<Editor />, document.getElementById("content"));
The versions of libraries are
"babel-cli": "6.24.1",
"babel-preset-react": "6.24.1"
"React & ReactDOM v15.5.4"
You will need separate files for each resolution I am afraid. There is a really good article on campaign monitor describing how they created and implemented their icons for each iOS device too:
http://www.campaignmonitor.com/blog/post/3234/designing-campaign-monitor-ios-icons/
PEP 8 defines that it is better to use the is
operator when comparing singletons.
For those who come to this issue using Firefox and the above solutions don't work, you may try the code below (my original answer is here).
from selenium import webdriver
profile = webdriver.FirefoxProfile()
profile.DEFAULT_PREFERENCES['frozen']['marionette.contentListener'] = True
profile.DEFAULT_PREFERENCES['frozen']['network.stricttransportsecurity.preloadlist'] = False
profile.DEFAULT_PREFERENCES['frozen']['security.cert_pinning.enforcement_level'] = 0
profile.set_preference('webdriver_assume_untrusted_issuer', False)
profile.set_preference("browser.download.folderList", 2)
profile.set_preference("browser.download.manager.showWhenStarting", False)
profile.set_preference("browser.download.dir", temp_folder)
profile.set_preference("browser.helperApps.neverAsk.saveToDisk",
"text/plain, image/png")
driver = webdriver.Firefox(firefox_profile=profile)
you should add plug in to your local setting of firefox in your user home
vladimir@shinsengumi ~/.mozilla/plugins $ pwd
/home/vladimir/.mozilla/plugins
vladimir@shinsengumi ~/.mozilla/plugins $ ls -ltr
lrwxrwxrwx 1 vladimir vladimir 60 Jan 1 23:06 libnpjp2.so -> /home/vladimir/Install/jdk1.6.0_32/jre/lib/amd64/libnpjp2.so
In Angular 4.x.x You can use ngIf in four way to achieve simple if else procedure:
Just Use If
<div *ngIf="isValid">
If isValid is true
</div>
Using If with Else (Please notice to templateName)
<div *ngIf="isValid; else templateName">
If isValid is true
</div>
<ng-template #templateName>
If isValid is false
</ng-template>
Using If with Then (Please notice to templateName)
<div *ngIf="isValid; then templateName">
Here is never showing
</div>
<ng-template #templateName>
If isValid is true
</ng-template>
Using If with Then and Else
<div *ngIf="isValid; then thenTemplateName else elseTemplateName">
Here is never showing
</div>
<ng-template #thenTemplateName>
If isValid is true
</ng-template>
<ng-template #elseTemplateName>
If isValid is false
</ng-template>
Tip: ngIf evaluates the expression and then renders the then or else template in its place when expression is truthy or falsy respectively. Typically the:
- then template is the inline template of ngIf unless bound to a different value.
- else template is blank unless it is bound.
The proper way to determine the "type" of an object, which is a wobbly term in the Ruby world, is to call object.class
.
Since classes can inherit from other classes, if you want to determine if an object is "of a particular type" you might call object.is_a?(ClassName)
to see if object
is of type ClassName
or derived from it.
Normally type checking is not done in Ruby, but instead objects are assessed based on their ability to respond to particular methods, commonly called "Duck typing". In other words, if it responds to the methods you want, there's no reason to be particular about the type.
For example, object.is_a?(String)
is too rigid since another class might implement methods that convert it into a string, or make it behave identically to how String behaves. object.respond_to?(:to_s)
would be a better way to test that the object in question does what you want.
I have the same problem that you describe although I'm building up my LatLngBounds as proposed by above. The problem is that things are async and calling map.fitBounds()
at the wrong time may leave you with a result like in the Q.
The best way I found is to place the call in an idle handler like this:
google.maps.event.addListenerOnce(map, 'idle', function() {
map.fitBounds(markerBounds);
});
If you want to center the content horizontally and vertically, but don't know in prior how high your page will be, you have to you use JavaScript.
HTML:
<body>
<div id="content">...</div>
</body>
CSS:
#content {
max-width: 1000px;
margin: auto;
left: 1%;
right: 1%;
position: absolute;
}
JavaScript (using jQuery):
$(function() {
$(window).on('resize', function resize() {
$(window).off('resize', resize);
setTimeout(function () {
var content = $('#content');
var top = (window.innerHeight - content.height()) / 2;
content.css('top', Math.max(0, top) + 'px');
$(window).on('resize', resize);
}, 50);
}).resize();
});
Building on dtheodor's answer you could use something similar to the below to ensure that you don't forget to unregister the callback... Some may object to passing the $scope
to a service though.
factory('aService', function() {
var observerCallbacks = [];
/**
* Registers a function that will be called when
* any modifications are made.
*
* For convenience the callback is called immediately after registering
* which can be prevented with `preventImmediate` param.
*
* Will also automatically unregister the callback upon scope destory.
*/
this.registerObserver = function($scope, cb, preventImmediate){
observerCallbacks.push(cb);
if (preventImmediate !== true) {
cb();
}
$scope.$on('$destroy', function () {
observerCallbacks.remove(cb);
});
};
function notifyObservers() {
observerCallbacks.forEach(function (cb) {
cb();
});
};
this.foo = someNgResource.query().$then(function(){
notifyObservers();
});
});
Array.remove is an extension method which looks like this:
/**
* Removes the given item the current array.
*
* @param {Object} item The item to remove.
* @return {Boolean} True if the item is removed.
*/
Array.prototype.remove = function (item /*, thisp */) {
var idx = this.indexOf(item);
if (idx > -1) {
this.splice(idx, 1);
return true;
}
return false;
};
The Thread
class is used for creating and manipulating a thread in Windows.
A Task
represents some asynchronous operation and is part of the Task Parallel Library, a set of APIs for running tasks asynchronously and in parallel.
In the days of old (i.e. before TPL) it used to be that using the Thread
class was one of the standard ways to run code in the background or in parallel (a better alternative was often to use a ThreadPool
), however this was cumbersome and had several disadvantages, not least of which was the performance overhead of creating a whole new thread to perform a task in the background.
Nowadays using tasks and the TPL is a far better solution 90% of the time as it provides abstractions which allows far more efficient use of system resources. I imagine there are a few scenarios where you want explicit control over the thread on which you are running your code, however generally speaking if you want to run something asynchronously your first port of call should be the TPL.
Since Java 8 the List interface provides the sort method. Combined with lambda expression the easiest solution would be
// sort DateTime typed list
list.sort((d1,d2) -> d1.compareTo(d2));
// or an object which has an DateTime attribute
list.sort((o1,o2) -> o1.getDateTime().compareTo(o2.getDateTime()));
// or like mentioned by Tunaki
list.sort(Comparator.comparing(o -> o.getDateTime()));
Reverse sorting
Java 8 comes also with some handy methods for reverse sorting.
//requested by lily
list.sort(Comparator.comparing(o -> o.getDateTime()).reversed());
Just remove the slash after Data
and prepend the root:
<xsl:variable name="myVarA" select="/root/DataSet/Data[@Value1='2']/@Value2"/>
In short, yes. But there are times when you might favor one vs. the other. Google "case switch vs. if else". There are some discussions already on SO too. Also, here is a good video that talks about it in the context of MATLAB:
http://blogs.mathworks.com/pick/2008/01/02/matlab-basics-switch-case-vs-if-elseif/
Personally, when I have 3 or more cases, I usually just go with case/switch.
Here's a cleaner, more "plug-and-play", version of @Nagasaki45's answer. Unlike many other answers here, it works properly with strings of different lengths. It achieves this by clearing the line with just as many spaces as the length of the last line printed print. Will also work on Windows.
def print_statusline(msg: str):
last_msg_length = len(print_statusline.last_msg) if hasattr(print_statusline, 'last_msg') else 0
print(' ' * last_msg_length, end='\r')
print(msg, end='\r')
sys.stdout.flush() # Some say they needed this, I didn't.
print_statusline.last_msg = msg
Simply use it like this:
for msg in ["Initializing...", "Initialization successful!"]:
print_statusline(msg)
time.sleep(1)
This small test shows that lines get cleared properly, even for different lengths:
for i in range(9, 0, -1):
print_statusline("{}".format(i) * i)
time.sleep(0.5)
As of Android version 4.0 official APIs and intents are available to interact with the available calendar providers.
setTimeout
may help out here
$("#message_link").click(function(){
setTimeout(function() {
if (some_conditions...){
$("#header").append("<div><img alt=\"Loader\"src=\"/images/ajax-loader.gif\" /></div>");
}
}, 100);
});
That will cause the div to be appended ~100ms after the click event occurs, if some_conditions are met.
From the description of material design specs:
Grid Lists are an alternative to standard list views. Grid lists are distinct from grids used for layouts and other visual presentations.
If you are looking for a much lightweight Grid component library, I'm using React-Flexbox-Grid, the implementation of flexboxgrid.css
in React.
On top of that, React-Flexbox-Grid played nicely with both material-ui, and react-toolbox (the alternative material design implementation).
something like
for (int rows = 0; rows < dataGrid.Rows.Count; rows++)
{
for (int col= 0; col < dataGrid.Rows[rows].Cells.Count; col++)
{
string value = dataGrid.Rows[rows].Cells[col].Value.ToString();
}
}
example without using index
foreach (DataGridViewRow row in dataGrid.Rows)
{
foreach (DataGridViewCell cell in row.Cells)
{
string value = cell.Value.ToString();
}
}
I didn't want to have so many lines of code just to play a simple damn sound. This can work if you have the JavaFX package (already included in my jdk 8).
private static void playSound(String sound){
// cl is the ClassLoader for the current class, ie. CurrentClass.class.getClassLoader();
URL file = cl.getResource(sound);
final Media media = new Media(file.toString());
final MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.play();
}
Notice : You need to initialize JavaFX. A quick way to do that, is to call the constructor of JFXPanel() once in your app :
static{
JFXPanel fxPanel = new JFXPanel();
}
Launch your app and keep it in foreground.
Run the below command:
adb shell dumpsys window windows | find "mcurrentfocus"
<a href="#">Start of page</a>
"The link has the href value of "#", which by definition means the start of the current document. Thus there is no need to worry about the correct way of setting up the destination anchor..."
A ListView
let you define a set of views
for it and gives you a native way (WPF
binding
support) to control the display of ListView
by using defined views
.
Example:
XAML
<ListView ItemsSource="{Binding list}" Name="listv" MouseEnter="listv_MouseEnter" MouseLeave="listv_MouseLeave">
<ListView.Resources>
<GridView x:Key="one">
<GridViewColumn Header="ID" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding id}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
<GridViewColumn Header="Name" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding name}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
<GridView x:Key="two">
<GridViewColumn Header="Name" >
<GridViewColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding name}" />
</DataTemplate>
</GridViewColumn.CellTemplate>
</GridViewColumn>
</GridView>
</ListView.Resources>
<ListView.Style>
<Style TargetType="ListView">
<Style.Triggers>
<DataTrigger Binding="{Binding ViewType}" Value="1">
<Setter Property="View" Value="{StaticResource one}" />
</DataTrigger>
</Style.Triggers>
<Setter Property="View" Value="{StaticResource two}" />
</Style>
</ListView.Style>
Code Behind:
private int viewType;
public int ViewType
{
get { return viewType; }
set
{
viewType = value;
UpdateProperty("ViewType");
}
}
private void listv_MouseEnter(object sender, MouseEventArgs e)
{
ViewType = 1;
}
private void listv_MouseLeave(object sender, MouseEventArgs e)
{
ViewType = 2;
}
OUTPUT:
Normal View: View 2 in above XAML
MouseOver View: View 1 in above XAML
If you try to achieve above in a
ListBox
, probably you'll end up writing a lot more code forControlTempalate
/ItemTemplate
ofListBox
.
The changelog is sloppily worded. from __future__ import absolute_import
does not care about whether something is part of the standard library, and import string
will not always give you the standard-library module with absolute imports on.
from __future__ import absolute_import
means that if you import string
, Python will always look for a top-level string
module, rather than current_package.string
. However, it does not affect the logic Python uses to decide what file is the string
module. When you do
python pkg/script.py
pkg/script.py
doesn't look like part of a package to Python. Following the normal procedures, the pkg
directory is added to the path, and all .py
files in the pkg
directory look like top-level modules. import string
finds pkg/string.py
not because it's doing a relative import, but because pkg/string.py
appears to be the top-level module string
. The fact that this isn't the standard-library string
module doesn't come up.
To run the file as part of the pkg
package, you could do
python -m pkg.script
In this case, the pkg
directory will not be added to the path. However, the current directory will be added to the path.
You can also add some boilerplate to pkg/script.py
to make Python treat it as part of the pkg
package even when run as a file:
if __name__ == '__main__' and __package__ is None:
__package__ = 'pkg'
However, this won't affect sys.path
. You'll need some additional handling to remove the pkg
directory from the path, and if pkg
's parent directory isn't on the path, you'll need to stick that on the path too.
Why not add "display: none;" to the divs style attribute? Thats all JQuery's .hide() function does.
Starting Python 3.8
, and the introduction of assignment expressions (PEP 572) (:=
operator), we can now capture the condition value re.search(pattern, statement)
in a variable (let's all it match
) in order to both check if it's not None
and then re-use it within the body of the condition:
if match := re.search('I love (\w+)', statement):
print(f'He loves {match.group(1)}')
elif match := re.search("Ich liebe (\w+)", statement):
print(f'Er liebt {match.group(1)}')
elif match := re.search("Je t'aime (\w+)", statement):
print(f'Il aime {match.group(1)}')
The most perfect answer to this question is using Promise
.
function ajax(method, url, params) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.onload = function() {
resolve(this.responseText);
};
xhr.onerror = reject;
xhr.open(method, url);
xhr.send(params);
});
}
ajax("GET", "/test", "acrive=1").then(function(result) {
// Code depending on result
})
.catch(function() {
// An error occurred
});
There is a problem with using promises!
I was using this solution for a while until I figured out there is an error in old browsers:
Uncaught ReferenceError: Promise is not defined
So i decided to implement my own Promise class for ES3 to below js compilers if its not defined. Just add this code before your main code and then safely use Promise!
if(typeof Promise === "undefined"){
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
var Promise = function () {
function Promise(main) {
var _this = this;
_classCallCheck(this, Promise);
this.value = undefined;
this.callbacks = [];
var resolve = function resolve(resolveValue) {
_this.value = resolveValue;
_this.triggerCallbacks();
};
var reject = function reject(rejectValue) {
_this.value = rejectValue;
_this.triggerCallbacks();
};
main(resolve, reject);
}
Promise.prototype.then = function then(cb) {
var _this2 = this;
var next = new Promise(function (resolve) {
_this2.callbacks.push(function (x) {
return resolve(cb(x));
});
});
return next;
};
Promise.prototype.catch = function catch_(cb) {
var _this2 = this;
var next = new Promise(function (reject) {
_this2.callbacks.push(function (x) {
return reject(cb(x));
});
});
return next;
};
Promise.prototype.triggerCallbacks = function triggerCallbacks() {
var _this3 = this;
this.callbacks.forEach(function (cb) {
cb(_this3.value);
});
};
return Promise;
}();
}
You can call Collections.sort() and pass in a Comparator which you need to write to compare different properties of the object.
Here's a simpler method, that requires neither events or timeouts. It does require jQuery, however.
Use jQuery.holdReady()
(docs)
So, immediately after your jQuery script, delay the ready event.
<!-- jQuery -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>
$.holdReady( true ); // don't fire ready until told (ie when FB loaded)
</script>
Then, in your Facebook init function, release it:
window.fbAsyncInit = function() {
FB.init({
appId: '11111111111111',
cookie: true,
xfbml: false,
version: 'v2.4'
});
// release the ready event to execute
$.holdReady( false );
};
Then you can use the ready event as normal:
$(document).ready( myApp.init );
The code for the confirmation dialogue can be written shorter this way:
$scope.$on('$locationChangeStart', function( event ) {
var answer = confirm("Are you sure you want to leave this page?")
if (!answer) {
event.preventDefault();
}
});
You can set this at boot by adding the "elevator" parameter to the kernel cmdline (such as in grub.cfg)
Example:
elevator=deadline
This will make "deadline" the default I/O scheduler for all block devices.
If you'd like to query or change the scheduler after the system has booted, or would like to use a different scheduler for a specific block device, I recommend installing and use the tool ioschedset to make this easy.
https://github.com/kata198/ioschedset
If you're on Archlinux it's available in aur:
https://aur.archlinux.org/packages/ioschedset
Some example usage:
# Get i/o scheduler for all block devices
[username@hostname ~]$ io-get-sched
sda: bfq
sr0: bfq
# Query available I/O schedulers
[username@hostname ~]$ io-set-sched --list
mq-deadline kyber bfq none
# Set sda to use "kyber"
[username@hostname ~]$ io-set-sched kyber /dev/sda
Must be root to set IO Scheduler. Rerunning under sudo...
[sudo] password for username:
+ Successfully set sda to 'kyber'!
# Get i/o scheduler for all block devices to assert change
[username@hostname ~]$ io-get-sched
sda: kyber
sr0: bfq
# Set all block devices to use 'deadline' i/o scheduler
[username@hostname ~]$ io-set-sched deadline
Must be root to set IO Scheduler. Rerunning under sudo...
+ Successfully set sda to 'deadline'!
+ Successfully set sr0 to 'deadline'!
# Get the current block scheduler just for sda
[username@hostname ~]$ io-get-sched sda
sda: mq-deadline
Usage should be self-explanatory. The tools are standalone and only require bash.
Hope this helps!
EDIT: Disclaimer, these are scripts I wrote.
You could also a for loop to do so:
#!/bin/bash
for i in *.sql
do
echo "Importing: $i"
mysql your_db_name < $i
wait
done
Since I could not run the C
executable that way, I wrote a simple shell script
that does the following
cd /..path_to_shell_script
./c_executable_name
In the cron jobs list, I call the shell script.
var campaignTitle= CKEDITOR.instances['CampaignTitle'].getData();
.timeline {_x000D_
list-style: none;_x000D_
padding: 20px 0 20px;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.timeline:before {_x000D_
top: 0;_x000D_
bottom: 0;_x000D_
position: absolute;_x000D_
content: " ";_x000D_
width: 3px;_x000D_
background-color: #eeeeee;_x000D_
left: 50%;_x000D_
margin-left: -1.5px;_x000D_
}_x000D_
_x000D_
.timeline > li {_x000D_
margin-bottom: 20px;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.timeline > li:before,_x000D_
.timeline > li:after {_x000D_
content: " ";_x000D_
display: table;_x000D_
}_x000D_
_x000D_
.timeline > li:after {_x000D_
clear: both;_x000D_
}_x000D_
_x000D_
.timeline > li:before,_x000D_
.timeline > li:after {_x000D_
content: " ";_x000D_
display: table;_x000D_
}_x000D_
_x000D_
.timeline > li:after {_x000D_
clear: both;_x000D_
}_x000D_
_x000D_
.timeline > li > .timeline-panel {_x000D_
width: 46%;_x000D_
float: left;_x000D_
border: 1px solid #d4d4d4;_x000D_
border-radius: 2px;_x000D_
padding: 20px;_x000D_
position: relative;_x000D_
-webkit-box-shadow: 0 1px 6px rgba(0, 0, 0, 0.175);_x000D_
box-shadow: 0 1px 6px rgba(0, 0, 0, 0.175);_x000D_
}_x000D_
_x000D_
.timeline > li > .timeline-panel:before {_x000D_
position: absolute;_x000D_
top: 26px;_x000D_
right: -15px;_x000D_
display: inline-block;_x000D_
border-top: 15px solid transparent;_x000D_
border-left: 15px solid #ccc;_x000D_
border-right: 0 solid #ccc;_x000D_
border-bottom: 15px solid transparent;_x000D_
content: " ";_x000D_
}_x000D_
_x000D_
.timeline > li > .timeline-panel:after {_x000D_
position: absolute;_x000D_
top: 27px;_x000D_
right: -14px;_x000D_
display: inline-block;_x000D_
border-top: 14px solid transparent;_x000D_
border-left: 14px solid #fff;_x000D_
border-right: 0 solid #fff;_x000D_
border-bottom: 14px solid transparent;_x000D_
content: " ";_x000D_
}_x000D_
_x000D_
.timeline > li > .timeline-badge {_x000D_
color: #fff;_x000D_
width: 50px;_x000D_
height: 50px;_x000D_
line-height: 50px;_x000D_
font-size: 1.4em;_x000D_
text-align: center;_x000D_
position: absolute;_x000D_
top: 16px;_x000D_
left: 50%;_x000D_
margin-left: -25px;_x000D_
background-color: #999999;_x000D_
z-index: 100;_x000D_
border-top-right-radius: 50%;_x000D_
border-top-left-radius: 50%;_x000D_
border-bottom-right-radius: 50%;_x000D_
border-bottom-left-radius: 50%;_x000D_
}_x000D_
_x000D_
.timeline > li.timeline-inverted > .timeline-panel {_x000D_
float: right;_x000D_
}_x000D_
_x000D_
.timeline > li.timeline-inverted > .timeline-panel:before {_x000D_
border-left-width: 0;_x000D_
border-right-width: 15px;_x000D_
left: -15px;_x000D_
right: auto;_x000D_
}_x000D_
_x000D_
.timeline > li.timeline-inverted > .timeline-panel:after {_x000D_
border-left-width: 0;_x000D_
border-right-width: 14px;_x000D_
left: -14px;_x000D_
right: auto;_x000D_
}_x000D_
_x000D_
.timeline-badge.primary {_x000D_
background-color: #2e6da4 !important;_x000D_
}_x000D_
_x000D_
.timeline-badge.success {_x000D_
background-color: #3f903f !important;_x000D_
}_x000D_
_x000D_
.timeline-badge.warning {_x000D_
background-color: #f0ad4e !important;_x000D_
}_x000D_
_x000D_
.timeline-badge.danger {_x000D_
background-color: #d9534f !important;_x000D_
}_x000D_
_x000D_
.timeline-badge.info {_x000D_
background-color: #5bc0de !important;_x000D_
}_x000D_
_x000D_
.timeline-title {_x000D_
margin-top: 0;_x000D_
color: inherit;_x000D_
}_x000D_
_x000D_
.timeline-body > p,_x000D_
.timeline-body > ul {_x000D_
margin-bottom: 0;_x000D_
}_x000D_
_x000D_
.timeline-body > p + p {_x000D_
margin-top: 5px;_x000D_
}
_x000D_
<div class="container">_x000D_
<div class="page-header">_x000D_
<h1 id="timeline">Timeline</h1>_x000D_
</div>_x000D_
<ul class="timeline">_x000D_
<li>_x000D_
<div class="timeline-badge"><i class="glyphicon glyphicon-check"></i></div>_x000D_
<div class="timeline-panel">_x000D_
<p><small class="text-muted"><i class="glyphicon glyphicon-time"></i> 11 hours ago via Twitter</small></p>_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
<p><small class="text-muted"><i class="glyphicon glyphicon-time"></i> 11 hours ago via Twitter</small></p>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li class="timeline-inverted">_x000D_
<div class="timeline-badge warning"><i class="glyphicon glyphicon-credit-card"></i></div>_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
<p>Suco de cevadiss, é um leite divinis, qui tem lupuliz, matis, aguis e fermentis. Interagi no mé, cursus quis, vehicula ac nisi. Aenean vel dui dui. Nullam leo erat, aliquet quis tempus a, posuere ut mi. Ut scelerisque neque et turpis posuere_x000D_
pulvinar pellentesque nibh ullamcorper. Pharetra in mattis molestie, volutpat elementum justo. Aenean ut ante turpis. Pellentesque laoreet mé vel lectus scelerisque interdum cursus velit auctor. Lorem ipsum dolor sit amet, consectetur adipiscing_x000D_
elit. Etiam ac mauris lectus, non scelerisque augue. Aenean justo massa.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li>_x000D_
<div class="timeline-badge danger"><i class="glyphicon glyphicon-credit-card"></i></div>_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li class="timeline-inverted">_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li>_x000D_
<div class="timeline-badge info"><i class="glyphicon glyphicon-floppy-disk"></i></div>_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
<hr>_x000D_
<div class="btn-group">_x000D_
<button type="button" class="btn btn-primary btn-sm dropdown-toggle" data-toggle="dropdown">_x000D_
<i class="glyphicon glyphicon-cog"></i> <span class="caret"></span>_x000D_
</button>_x000D_
<ul class="dropdown-menu" role="menu">_x000D_
<li><a href="#">Action</a></li>_x000D_
<li><a href="#">Another action</a></li>_x000D_
<li><a href="#">Something else here</a></li>_x000D_
<li class="divider"></li>_x000D_
<li><a href="#">Separated link</a></li>_x000D_
</ul>_x000D_
</div>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li>_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
<li class="timeline-inverted">_x000D_
<div class="timeline-badge success"><i class="glyphicon glyphicon-thumbs-up"></i></div>_x000D_
<div class="timeline-panel">_x000D_
<div class="timeline-heading">_x000D_
<h4 class="timeline-title">Mussum ipsum cacilds</h4>_x000D_
</div>_x000D_
<div class="timeline-body">_x000D_
<p>Mussum ipsum cacilds, vidis litro abertis. Consetis adipiscings elitis. Pra lá , depois divoltis porris, paradis. Paisis, filhis, espiritis santis. Mé faiz elementum girarzis, nisi eros vermeio, in elementis mé pra quem é amistosis quis leo._x000D_
Manduma pindureta quium dia nois paga. Sapien in monti palavris qui num significa nadis i pareci latim. Interessantiss quisso pudia ce receita de bolis, mais bolis eu num gostis.</p>_x000D_
</div>_x000D_
</div>_x000D_
</li>_x000D_
</ul>_x000D_
</div>
_x000D_
Only IE6-8 - there's an ActiveX workaround this local-files issue in JavaScript:
function OpenImage(filePath)
{
var myshell = new ActiveXObject("WScript.shell");
myshell.run(filePath, 1, true);
}
Index the list then the dict.
print L[1]['d']
Here in my sample I find out the solution of this, because I had the same problem with updates and subquerys:
UPDATE
A
SET
A.ValueToChange = B.NewValue
FROM
(
Select * From C
) B
Where
A.Id = B.Id
background-attachment: fixed;
http://www.w3.org/TR/CSS21/colors.html#background-properties
SELECT TO_CHAR(NOW(), 'Mon YYYY');
You can also do what the "Service Reference" generated code does
public class ServiceXClient : ClientBase<IServiceX>, IServiceX
{
public ServiceXClient() { }
public ServiceXClient(string endpointConfigurationName) :
base(endpointConfigurationName) { }
public ServiceXClient(string endpointConfigurationName, string remoteAddress) :
base(endpointConfigurationName, remoteAddress) { }
public ServiceXClient(string endpointConfigurationName, EndpointAddress remoteAddress) :
base(endpointConfigurationName, remoteAddress) { }
public ServiceXClient(Binding binding, EndpointAddress remoteAddress) :
base(binding, remoteAddress) { }
public bool ServiceXWork(string data, string otherParam)
{
return base.Channel.ServiceXWork(data, otherParam);
}
}
Where IServiceX is your WCF Service Contract
Then your client code:
var client = new ServiceXClient(new WSHttpBinding(SecurityMode.None), new EndpointAddress("http://localhost:911"));
client.ServiceXWork("data param", "otherParam param");
For C++ strings, there's no reason to use strlen
. Just use string::length
:
std::cout << str.length() << std::endl;
You should strongly prefer this to strlen(str.c_str())
for the following reasons:
Clarity: The length()
(or size()
) member functions unambiguously give back the length of the string. While it's possible to figure out what strlen(str.c_str())
does, it forces the reader to pause for a bit.
Efficiency: length()
and size()
run in time O(1), while strlen(str.c_str())
will take Θ(n) time to find the end of the string.
Style: It's good to prefer the C++ versions of functions to the C versions unless there's a specific reason to do so otherwise. This is why, for example, it's usually considered better to use std::sort
over qsort
or std::lower_bound
over bsearch
, unless some other factors come into play that would affect performance.
The only reason I could think of where strlen
would be useful is if you had a C++-style string that had embedded null characters and you wanted to determine how many characters appeared before the first of them. (That's one way in which strlen
differs from string::length
; the former stops at a null terminator, and the latter counts all the characters in the string). But if that's the case, just use string::find
:
size_t index = str.find(0);
if (index == str::npos) index = str.length();
std::cout << index << std::endl;
Hope this helps!
You don't need CSS for this.
<img src="abc"/>
now with link:
<a href="#myLink"><img src="abc"/></a>
Or with jquery, later on, you can use the wrap property, see these questions answer:
//My Form
<form id="someform">
<div class="input-group">
<textarea placeholder="Post your Comment Here ..." name="post" class="form-control custom-control" rows="3" style="resize:none"></textarea>
<span class="input-group-addon">
<button type="submit" name="post_comment" class="btn btn-primary">
Post
</button>
</span>
</div>
</form>
//your text area get value to URL
<?php
if(isset($_POST['post_comment']))
{
echo htmlspecialchars($_POST['post']);
}
?>
//print the value using get
echo $_GET['post'];
//url must be like this
http://localhost/blog/home.php?post=asdasdsad&post_comment=
//post value has asdasdsad so it will print to your page
:set runtimepath?
This lists the path of all plugins loaded when a file is opened with Vim.
Unless the role was made dbo, db_owner or db_datawriter, it won't have permission to edit any data. If you want to grant full edit permissions to a single table, do this:
GRANT ALL ON table1 TO doctor
Users in that role will have no permissions whatsoever to other tables (not even read).
I just had the same issue on visual studio 2012. For a internet application project. How to resolve “Server Error in '/' Application” error?
Searching for answer I came across this post, but none of these answer help me. Than I found another post here on stackoverflow that has the answer for resolving this issue. Specified argument was out of the range of valid values. Parameter name: site
if ($_SERVER['REQUEST_METHOD'] == 'POST')
.
I found a solution changing buildTypes like this:
buildTypes {
release {
signingConfig signingConfigs.release
}
}
*Not as far as i know there isn't what i do normally in this kind of circumstances is create a block beneath with a bigger size((bordersize*2)+originalsize) and make it transparent using
filter:alpha(opacity=50);
-moz-opacity:0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
here is an example
#main{
width:400px;
overflow:hidden;
position:relative;
}
.border{
width:100%;
position:absolute;
height:100%;
background-color:#F00;
filter:alpha(opacity=50);
-moz-opacity:0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
}
.content{
margin:15px;/*size of border*/
background-color:black;
}
<div id="main">
<div class="border">
</div>
<div class="content">
testing
</div>
</div>
Update:
This answer is outdated, since after all this question is more than 8 years old. Today all up to date browsers support rgba, box shadows and so on. But this is a decent example how it was 8+ years ago.
To color each cell based on its current integer value, the following should work, if you have a recent version of Excel. (Older versions don't handle rgb as well)
Sub Colourise()
'
' Colourise Macro
'
' Colours all selected cells, based on their current integer rgb value
' For e.g. (it's a bit backward from what you might expect)
' 255 = #ff0000 = red
' 256*255 = #00ff00 = green
' 256*256*255 #0000ff = blue
' 255 + 256*256*255 #ff00ff = magenta
' and so on...
'
' Keyboard Shortcut: Ctrl+Shift+C (or whatever you want to set it to)
'
For Each cell In Selection
If WorksheetFunction.IsNumber(cell) Then
cell.Interior.Color = cell.Value
End If
Next cell
End Sub
If instead of a number you have a string then you can split the string into three numbers and combine them using rgb().
Whenever one writes [A-Z]
or [a-z]
, one explicitly commits to
processing nothing but 7-bit ASCII data from the 1960s. If that’s
really ok, then fine. But if it’s not ok, then Unicode character
properties exist to help you with handling modern character data.
There are three cases in Unicode, not two. Furthermore, you also have
noncased letters. Letters in general are specified by the \pL
property,
and each of these also belongs to exactly one of five subcategories:
\p{Lu}
; eg: AÇ?ÞSSS??ST\p{Lt}
; eg: ??Ss?St
(actually Ss
and St
are an upper- and then a lowercase letter,
but they are what you get if you ask for the titlecase of ß and
?, respectively)\p{Ll}
; eg: aaç??sþß??\p{Lm}
; eg: ????"'???\p{Lo}
; eg: ?????You can take the complement of any of these, but do be careful, because
something like \P{Lu}
does not mean a letter that isn’t uppercase!
It means any character that isn’t an uppercase letter.
For a letter that’s either of uppercase or titlecase, use
[\p{Lu}\p{Lt}]
. So you could use for your pattern:
^([\p{Lu}\p{Lt}]\p{Ll}+)+$
If you don’t mean to limit the letters following the first to the “casing” letters alone, then you might prefer:
^([\p{Lu}\p{Lt}][\p{Ll}\p{Lm}\p{Lo}]+)+$
If you’re trying to match so-called “CamelCase” identifiers, then
the actual rules depend on the programming language, but usually include
the underscore character and the decimal numbers (\p{Nd}
), and may also
include a literal dollar sign and other language-dependent characters.
If so, you may wish to add some of these to one or the other of the two
character classes provided above.
For example, you may wish to add underscore to both but digits only to the second, leaving you with:
^([_\p{Lu}\p{Lt}][_\p{Nd}\p{Ll}\p{Lm}\p{Lo}]+)+$
If, though, you are dealing with certain “words” from various RFCs and ISO
standards, these are often specified as containing ASCII only. If so,
you can get by with the literal [A-Z]
idea. It’s just not kind to
impose that restriction if it doesn’t actually exist.
There can be multiple root causes for this exception. For me, my mockMvc wasn't getting auto-configured. I solved this exception by using @WebMvcTest(MyController.class)
at the class level. This annotation will disable full auto-configuration and instead apply only configuration relevant to MVC tests.
An alternative to this is, If you are looking to load your full application configuration and use MockMVC, you should consider @SpringBootTest
combined with @AutoConfigureMockMvc
rather than @WebMvcTest
If you already have var parent = document.querySelector('.parent');
you can do this to scope the search to parent
's children:
parent.querySelector('.child')
I found it. Perl has multi-line comments:
#!/usr/bin/perl
use strict;
use warnings;
=for comment
Example of multiline comment.
Example of multiline comment.
=cut
print "Multi Line Comment Example \n";
How do I check if something is (not) in a list in Python?
The cheapest and most readable solution is using the in
operator (or in your specific case, not in
). As mentioned in the documentation,
The operators
in
andnot in
test for membership.x in s
evaluates toTrue
ifx
is a member ofs
, andFalse
otherwise.x not in s
returns the negation ofx in s
.
Additionally,
The operator
not in
is defined to have the inverse true value ofin
.
y not in x
is logically the same as not y in x
.
Here are a few examples:
'a' in [1, 2, 3]
# False
'c' in ['a', 'b', 'c']
# True
'a' not in [1, 2, 3]
# True
'c' not in ['a', 'b', 'c']
# False
This also works with tuples, since tuples are hashable (as a consequence of the fact that they are also immutable):
(1, 2) in [(3, 4), (1, 2)]
# True
If the object on the RHS defines a __contains__()
method, in
will internally call it, as noted in the last paragraph of the Comparisons section of the docs.
...
in
andnot in
, are supported by types that are iterable or implement the__contains__()
method. For example, you could (but shouldn't) do this:
[3, 2, 1].__contains__(1)
# True
in
short-circuits, so if your element is at the start of the list, in
evaluates faster:
lst = list(range(10001))
%timeit 1 in lst
%timeit 10000 in lst # Expected to take longer time.
68.9 ns ± 0.613 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
178 µs ± 5.01 µs per loop (mean ± std. dev. of 7 runs, 10000 loops each)
If you want to do more than just check whether an item is in a list, there are options:
list.index
can be used to retrieve the index of an item. If that element does not exist, a ValueError
is raised.list.count
can be used if you want to count the occurrences.set
s?Ask yourself these questions:
hash
on them?If you answered "yes" to these questions, you should be using a set
instead. An in
membership test on list
s is O(n) time complexity. This means that python has to do a linear scan of your list, visiting each element and comparing it against the search item. If you're doing this repeatedly, or if the lists are large, this operation will incur an overhead.
set
objects, on the other hand, hash their values for constant time membership check. The check is also done using in
:
1 in {1, 2, 3}
# True
'a' not in {'a', 'b', 'c'}
# False
(1, 2) in {('a', 'c'), (1, 2)}
# True
If you're unfortunate enough that the element you're searching/not searching for is at the end of your list, python will have scanned the list upto the end. This is evident from the timings below:
l = list(range(100001))
s = set(l)
%timeit 100000 in l
%timeit 100000 in s
2.58 ms ± 58.9 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
101 ns ± 9.53 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
As a reminder, this is a suitable option as long as the elements you're storing and looking up are hashable. IOW, they would either have to be immutable types, or objects that implement __hash__
.
Check the current value of your "readonly" attribute, if it's "false" (a string) or empty (undefined or "") then it's not readonly.
$('input').each(function() {
var readonly = $(this).attr("readonly");
if(readonly && readonly.toLowerCase()!=='false') { // this is readonly
alert('this is a read only field');
}
});
With netcat and awk you can handle the server response manually:
if netcat 127.0.0.1 8080 <<EOF | awk 'NR==1{if ($2 == "500") exit 0; exit 1;}'; then
GET / HTTP/1.1
Host: www.example.com
EOF
apache2ctl restart;
fi
Using groupby
you could split into two dataframes like
In [1047]: df1, df2 = [x for _, x in df.groupby(df['Sales'] < 30)]
In [1048]: df1
Out[1048]:
A Sales
2 7 30
3 6 40
4 1 50
In [1049]: df2
Out[1049]:
A Sales
0 3 10
1 4 20
You probably don't even need string substitution for that. If your original string is JSON, try:
js> a="['abc','xyz']"
['abc','xyz']
js> eval(a).join(",")
abc,xyz
Be careful with eval
, of course.
I like Zarembisty's answer. Although, if you want to be more explicit, you can always do:
if len(my_list) == 0:
print "my_list is empty"
By default mysqldump
always creates the CREATE DATABASE IF NOT EXISTS db_name;
statement at the beginning of the dump file.
[EDIT] Few things about the mysqldump
file and it's options:
--all-databases
, -A
Dump all tables in all databases. This is the same as using the --databases
option and naming all the databases on the command line.
--add-drop-database
Add a DROP DATABASE
statement before each CREATE DATABASE
statement. This option is typically used in conjunction with the --all-databases
or --databases
option because no CREATE DATABASE
statements are written unless one of those options is specified.
--databases
, -B
Dump several databases. Normally, mysqldump
treats the first name argument on the command line as a database name and following names as table names. With this option, it treats all name arguments as database names. CREATE DATABASE
and USE
statements are included in the output before each new database.
--no-create-db
, -n
This option suppresses the CREATE DATABASE
statements that are otherwise included in the output if the --databases
or --all-databases
option is given.
Some time ago, there was similar question actually asking about not having such statement on the beginning of the file (for XML file). Link to that question is here.
So to answer your question:
--add-drop-database
option in your mysqldump
statement.--databases
or --all-databases
and the CREATE DATABASE
syntax will be added
automaticallyMore information at MySQL Reference Manual
Similar to @Aaron Digulla's suggestion except that I would suggest a graphics design tool, select the base color, in your case the background color, then adjust the Hue, Saturation and Value. Using this you can create color swatches very easily. Paint.Net is free and I use it all the time for this and also the pay-for-tools will also do this.
Install a third-party path module (found on PyPI
), it wraps all the os.path
functions and other related functions into methods on an object that can be used wherever strings are used:
>>> from path import path
>>> path('mydir/myfile.txt').abspath()
'C:\\example\\cwd\\mydir\\myfile.txt'
This error can occur if trying to grant privileges for a non-existing user.
It is not clear to me what MySQL considers a non-existing user. But I suspect MySQL considers a user to exist if it can be found by a name (column User
) and a host (column Host
) in the user
table.
If trying to grant privileges to a user that can be found with his name (column User
) but not by his name and host (columns User
and Host
), and not provide a password, then the error occurs.
For example, the following statement triggers the error:
grant all privileges on mydb.* to myuser@'xxx.xxx.xxx.xxx';
This is because, with no password being specified, MySQL cannot create a new user, and thus tries to find an existing user. But no user with the name myuser
and the host xxx.xxx.xxx.xxx
can be found in the user
table.
Whereas providing a password, allows the statement to be executed successfully:
grant all privileges on mydb.* to myuser@'xxx.xxx.xxx.xxx' identified by 'mypassword';
Make sure to reuse the same password of that user you consider exists, if that new "MySQL user" is the same "application user".
Complete the operation by flushing the privileges:
flush privileges;
This is what i did.
End results :
In later Elasticsearch versions (7.x), types were removed. Updating a mapping can becomes:
curl -XPUT "http://localhost:9200/test/_mapping" -H 'Content-Type: application/json' -d'{
"properties": {
"new_geo_field": {
"type": "geo_point"
}
}
}'
As others have pointed out, if the field exists, you typically have to reindex. There are exceptions, such as adding a new sub-field or changing analysis settings.
You can't "create a mapping", as the mapping is created with the index. Typically, you'd define the mapping when creating the index (or via index templates):
curl -XPUT "http://localhost:9200/test" -H 'Content-Type: application/json' -d'{
"mappings": {
"properties": {
"foo_field": {
"type": "text"
}
}
}
}'
That's because, in production at least, you'd want to avoid letting Elasticsearch "guess" new fields. Which is what generated this question: geo data was read as an array of long
values.
Just json.dumps will fix the problem
json.dumps function actually converts all the unicode literals to string literals and it will be easy for us to load the data either in json file or csv file.
sample code:
import json
EmployeeList = [u'1001', u'Karick', u'14-12-2020', u'1$']
result_list = json.dumps(EmployeeList)
print result_list
output: ["1001", "Karick", "14-12-2020", "1$"]
I assume $arr is an array then this is what you are looking for
if ( sizeof($arr) > 1) ...
I had a service class with signature as below"
@WebMethod
public FetchIQAStatusResponseVO fetchIQAStatus(FetchIQAStatusRequest fetchIQAStatusRequest) {
On run I got the same error for FetchIQAStatusResponseVO
fields. I just added a line on top of FetchIQAStatusResponseVO
:
@XmlAccessorType(XmlAccessType.FIELD) //This line added
public class FetchIQAStatusResponseVO {
and this resolved the issue.
can you try something like this. You have to put each json in the data not json[i], because in the way you are doing it you are getting and putting only the properties of each json. Put the whole json instead in the data
var my_json;
$.getJSON("https://api.thingspeak.com/channels/"+did+"/feeds.json?api_key="+apikey+"&results=300", function(json1) {
console.log(json1);
var data = [];
json1.feeds.forEach(function(feed,i){
console.log("\n The details of " + i + "th Object are : \nCreated_at: " + feed.created_at + "\nEntry_id:" + feed.entry_id + "\nField1:" + feed.field1 + "\nField2:" + feed.field2+"\nField3:" + feed.field3);
my_json = feed;
console.log(my_json); //Object {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"}
data.push(my_json);
});
Try setting core.autocrlf value like this :
git config --global core.autocrlf true
Another work-around is to construct a string with a temporary substitute character. Then you can use REPLACE to change each temp character to the double quote. I use tilde as the temporary substitute character.
Here is an example from a project I have been working on. This is a little utility routine to repair a very complicated formula if/when the cell gets stepped on accidentally. It is a difficult formula to enter into a cell, but this little utility fixes it instantly.
Sub RepairFormula()
Dim FormulaString As String
FormulaString = "=MID(CELL(~filename~,$A$1),FIND(~[~,CELL(~filename~,$A$1))+1,FIND(~]~, CELL(~filename~,$A$1))-FIND(~[~,CELL(~filename~,$A$1))-1)"
FormulaString = Replace(FormulaString, Chr(126), Chr(34)) 'this replaces every instance of the tilde with a double quote.
Range("WorkbookFileName").Formula = FormulaString
This is really just a simple programming trick, but it makes entering the formula in your VBA code pretty easy.
There are a number of ways you can do this:
How to implement Idea #5? Well, one way is to first create an interface:
public interface ThreadCompleteListener {
void notifyOfThreadComplete(final Thread thread);
}
then create the following class:
public abstract class NotifyingThread extends Thread {
private final Set<ThreadCompleteListener> listeners
= new CopyOnWriteArraySet<ThreadCompleteListener>();
public final void addListener(final ThreadCompleteListener listener) {
listeners.add(listener);
}
public final void removeListener(final ThreadCompleteListener listener) {
listeners.remove(listener);
}
private final void notifyListeners() {
for (ThreadCompleteListener listener : listeners) {
listener.notifyOfThreadComplete(this);
}
}
@Override
public final void run() {
try {
doRun();
} finally {
notifyListeners();
}
}
public abstract void doRun();
}
and then each of your Threads will extend NotifyingThread
and instead of implementing run()
it will implement doRun()
. Thus when they complete, they will automatically notify anyone waiting for notification.
Finally, in your main class -- the one that starts all the Threads (or at least the object waiting for notification) -- modify that class to implement ThreadCompleteListener
and immediately after creating each Thread add itself to the list of listeners:
NotifyingThread thread1 = new OneOfYourThreads();
thread1.addListener(this); // add ourselves as a listener
thread1.start(); // Start the Thread
then, as each Thread exits, your notifyOfThreadComplete
method will be invoked with the Thread instance that just completed (or crashed).
Note that better would be to implements Runnable
rather than extends Thread
for NotifyingThread
as extending Thread is usually discouraged in new code. But I'm coding to your question. If you change the NotifyingThread
class to implement Runnable
then you have to change some of your code that manages Threads, which is pretty straightforward to do.
Using find / replace, try pasting a selection starting at the end of the line above the blank line and ends at the beginning of the line after the blank. This works for a single blank line. You can repeat the process for multiple blank lines as well. CTRL-H, put your selection in the find box and put a single newline in the replace box via copy/paste or other method.
Try this ...
Close emulator if it Running.
Start Emulator again and wait for its online.
enter Command in commandprompt and press ENTER key : adb tcpip 5555
(Make sure that only One emulator running at a time.)
adb -s emulator-5555 emu kill
Press Enter Key....
Done.
check devices by command "adb devices" in cmd.
I ran some tests (on postgres 9.5) using two tables with ~2M rows each. This query below performed at least 5* better than the other queries proposed:
-- Count
SELECT count(*) FROM (
(SELECT id FROM table1) EXCEPT (SELECT id FROM table2)
) t1_not_in_t2;
-- Get full row
SELECT table1.* FROM (
(SELECT id FROM table1) EXCEPT (SELECT id FROM table2)
) t1_not_in_t2 JOIN table1 ON t1_not_in_t2.id=table1.id;
If anyone needs help, this code is working!
swal({
title: 'Request Delivered',
text: 'You can continue with your search.',
type: 'success'
}).then(function() {
window.location.href = "index2.php";
})
It's probably best to skip hidden files and folders, such as .git.
So instead of using find
, if your bash
version is recent enough or if you're using zsh
, just do:
dos2unix **
Note that for Bash, this will require:
shopt -s globstar
....but this is a useful enough feature that you should honestly just put it in your .bashrc
anyway.
If you don't want to skip hidden files and folders, but you still don't want to mess with find
(and I wouldn't blame you), you can provide a second recursive-glob argument to match only hidden entries:
dos2unix ** **/.*
Note that in both cases, the glob will expand to include directories, so you will see the following warning (potentially many times over): Skipping <dir>, not a regular file.
sudo mv /filename /etc/init.d/
sudo chmod +x /etc/init.d/filename
sudo update-rc.d filename defaults
Script should now start on boot. Note that this method also works with both hard links and symbolic links (ln
).
At this point in the boot process PATH isn't set yet, so it is critical that absolute paths are used throughout. BUT, as pointed out in the comments by Steve HHH, explicitly declaring the full file path (/etc/init.d/filename
) for the update-rc.d command is not valid in most versions of Linux. Per the manpage for update-rc.d, the second parameter is a script located in /etc/init.d/*
. Updated above code to reflect this.
Also as pointed out in the comments (by Charles Brandt), /filename
must be an init style script. A good template was also provided - https://github.com/fhd/init-script-template.
Another link to another article just to avoid possible link rot (although it would be saddening if GitHub died) - http://www.linux.com/learn/tutorials/442412-managing-linux-daemons-with-init-scripts
As pointed out in the comments (by Russell Yan), This works only on default mode of update-rc.d.
According to manual of update-rc.d, it can run on two modes, "the machines using the legacy mode will have a file /etc/init.d/.legacy-bootordering
", in which case you have to pass sequence and runlevel configuration through command line arguments.
The equivalent argument set for the above example is
sudo update-rc.d filename start 20 2 3 4 5 . stop 20 0 1 6 .
Float everything.
If you have a floated div
inside a non-floated div
, everything gets all screwy. That's why most CSS frameworks like Blueprint and 960.gs all use floated containers and divs
.
To answer your particular question,
<div class="container">
<!--
.container {
float: left;
width: 100%;
}
-->
<div class="sidebar">
<!--
.sidebar {
float: left;
width: 20%;
height: auto;
}
-->
</div>
<div class="content">
<!--
.sidebar {
float: left;
width: 20%;
height: auto;
}
-->
</div>
</div>
should work just fine, as long as you float:left;
all of your <div>
s.
having same issue in windows server 2008 r2 and explored a lot to solve, finally did that by following:
open C:\Program Files (x86)\OpenSSH\etc\sshd_config with textpad or any other text editor
remove comment from following lines, after removing they should look like following:
RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
save it and try to login with private key now. have fun.
Start a shell as hduser (from root) and run your command
sudo -u hduser bash
hadoop fs -put /usr/local/input-data/ /input
[update]
Also note that the hdfs
user is the super user and has all r/w privileges.
As wordpress api has changed, you can´t use get_posts with param 'post_name'. I´ve modified Maartens function a bit:
function get_post_id_by_slug( $slug, $post_type = "post" ) {
$query = new WP_Query(
array(
'name' => $slug,
'post_type' => $post_type,
'numberposts' => 1,
'fields' => 'ids',
) );
$posts = $query->get_posts();
return array_shift( $posts );
}
server.session.timeout
in the application.properties
file is now deprecated. The correct setting is:
server.servlet.session.timeout=60s
Also note that Tomcat will not allow you to set the timeout any less than 60 seconds. For details about that minimum setting see https://github.com/spring-projects/spring-boot/issues/7383.
You can use the following function to convert the text "HTML" to the element
function htmlToElement(html)_x000D_
{_x000D_
var element = document.createElement('div');_x000D_
element.innerHTML = html;_x000D_
return(element);_x000D_
}_x000D_
var html="<li>text and html</li>";_x000D_
var e=htmlToElement(html);
_x000D_
Solved it as follows,
in CSS
#my{
zoom: 100%;
}
Now, it loads in 100% zoom by default. Tested it by giving 290% zoom and it loaded by that zoom percentage on default, it's upto the user if he wants to change zoom.
Though this is not the best way to do it, there is another effective solution
Check the page code of stack over flow, even they have buttons and they use un ordered lists to solve this problem.
var currentDate = moment('2015-10-30');
var futureMonth = moment(currentDate).add(1, 'M');
var futureMonthEnd = moment(futureMonth).endOf('month');
if(currentDate.date() != futureMonth.date() && futureMonth.isSame(futureMonthEnd.format('YYYY-MM-DD'))) {
futureMonth = futureMonth.add(1, 'd');
}
console.log(currentDate);
console.log(futureMonth);
EDIT
moment.addRealMonth = function addRealMonth(d) {
var fm = moment(d).add(1, 'M');
var fmEnd = moment(fm).endOf('month');
return d.date() != fm.date() && fm.isSame(fmEnd.format('YYYY-MM-DD')) ? fm.add(1, 'd') : fm;
}
var nextMonth = moment.addRealMonth(moment());
File name should in under double quotes. Since i am using Mac->In my case content of batch file is
cd /Users/yourName/Documents/SeleniumServer
java -jar selenium-server-standalone-3.3.1.jar -role hub
It will work for sure
It was probably discussed, but as of CSS3 there is nothing like what you need (see also "Is there a CSS selector for elements containing certain text?"). You will have to use additional markup, like this:
<li><span class="foo">some text</span></li>
<li>some other text</li>
Then refer to it the usual way:
li > span.foo {...}
function delimitNumbers(str) {
return (str + "").replace(/\b(\d+)((\.\d+)*)\b/g, function(a, b, c) {
return (b.charAt(0) > 0 && !(c || ".").lastIndexOf(".") ? b.replace(/(\d)(?=(\d{3})+$)/g, "$1,") : b) + c;
});
}
alert(delimitNumbers(1234567890));
Set editable
to False
and default
to your default value.
http://docs.djangoproject.com/en/stable/ref/models/fields/#editable
b = models.CharField(max_length=7, default='0000000', editable=False)
Also, your id
field is unnecessary. Django will add it automatically.
AFAIK, you can't create a File
from an assets file because these are stored in the apk, that means there is no path to an assets folder.
But, you can try to create that File
using a buffer and the AssetManager
(it provides access to an application's raw asset files).
Try to do something like:
AssetManager am = getAssets();
InputStream inputStream = am.open("myfoldername/myfilename");
File file = createFileFromInputStream(inputStream);
private File createFileFromInputStream(InputStream inputStream) {
try{
File f = new File(my_file_name);
OutputStream outputStream = new FileOutputStream(f);
byte buffer[] = new byte[1024];
int length = 0;
while((length=inputStream.read(buffer)) > 0) {
outputStream.write(buffer,0,length);
}
outputStream.close();
inputStream.close();
return f;
}catch (IOException e) {
//Logging exception
}
return null;
}
Let me know about your progress.
You can set height and width like this also:
viewinstance.setLayoutParams(new LayoutParams(width, height));
When I'm just testing a string to see if it is a GUID, I don't really want to create a Guid object that I don't need. So...
public static class GuidEx
{
public static bool IsGuid(string value)
{
Guid x;
return Guid.TryParse(value, out x);
}
}
And here's how you use it:
string testMe = "not a guid";
if (GuidEx.IsGuid(testMe))
{
...
}
From what the other answers have proposed, I believe this might help:
var object = ips[ipId];
var name = "Joe";
var anothername = "Fred";
var value = "Thingy";
var anothervalue = "Fingy";
object[name] = value;
object[anothername] = anothervalue;
However, this is not tested, just an assumption based on the constant repetition of:
object["string"] = value;
//object = {string: value}
I had this problem and fixed it with manuel-84's suggestion. Using a 400x400px image worked great, while my smaller image never showed up in the sharer.
Note that Facebook recommends a minimum 200px square image as the og:image tag: https://developers.facebook.com/docs/opengraph/howtos/maximizing-distribution-media-content/#tags
Add a method to the enum like:
public String getString() {
return this.name();
}
For example
public enum MyEnum {
VALUE_1,
VALUE_2;
public String getString() {
return this.name();
}
}
Then you can use:
<c:if test="${myObject.myEnumProperty.string eq 'VALUE_2'}">...</c:if>
this example, I am assuming that all your image files begin with "IMG" and you want to replace "IMG" with "VACATION"
solution : first identified all jpg files and then replace keyword
find . -name '*jpg' -exec bash -c 'echo mv $0 ${0/IMG/VACATION}' {} \;
You can make the dependent input width versus container width.
.container {
width: 360px;
}
.container input {
width: 100%;
}
Answer for a slightly different problem:
You have a sequence of raw unicode that was saved into a str variable:
s_str: str = "\x00\x01\x00\xc0\x01\x00\x00\x00\x04"
You need to be able to get the byte literal of that unicode (for struct.unpack(), etc.)
s_bytes: bytes = b'\x00\x01\x00\xc0\x01\x00\x00\x00\x04'
Solution:
s_new: bytes = bytes(s, encoding="raw_unicode_escape")
Reference (scroll up for standard encodings):
I got the error "The table/view 'dbo.vMyView' does not have a primary key defined" after I created a view in SQL server query designer. I solved the problem by using ISNULL on a column to force entity framework to use it as a primary key. You might have to restart visual studio to get the warnings to go away.
CREATE VIEW [dbo].[vMyView]
AS
SELECT ISNULL(Id, -1) AS IdPrimaryKey, Name
FROM dbo.MyTable
There is no need for any External libraries, the JRE System libraries provide all you need.
I am infering that you have a org.w3c.dom.Document
object you would like to write to a file
To do that, you use a javax.xml.transform.Transformer
:
import org.w3c.dom.Document
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
public class XMLWriter {
public static void writeDocumentToFile(Document document, File file) {
// Make a transformer factory to create the Transformer
TransformerFactory tFactory = TransformerFactory.newInstance();
// Make the Transformer
Transformer transformer = tFactory.newTransformer();
// Mark the document as a DOM (XML) source
DOMSource source = new DOMSource(document);
// Say where we want the XML to go
StreamResult result = new StreamResult(file);
// Write the XML to file
transformer.transform(source, result);
}
}
Source: http://docs.oracle.com/javaee/1.4/tutorial/doc/JAXPXSLT4.html
Do you have any working repositories in this instance of eclipse?
I've had problems in the past with the default Subclipse subversion client on Windows, you need to make sure the native subversion client is installed and correctly configured (I've got TortoiseSVN to work in the past) if you want to use the default client adapter.
On a recent install I tried the "beta" drivers (I have Eclipse Ganymede and "SVNKit (Pure Java) SVNKit v1.2.0.4502") that you can optionally install with Subclipse and they worked pretty much straight out of the box, although a colleague found he had to go through a few hoops to make sure Eclipse installed them (and their dependancies) correctly.
Here are the packages that appear in "Help" -> "Software Updates" -> "Installed Software":
Subclipse 1.4.0
Subversion Client Adapter 1.5.0.1
SVNKit Client Adapter 1.5.0.1
SVNKit Library 1.2.0.4502
These are probably a little out of date now, and the latest version will probably work better, but this is what I can see working right now.
select * from emp
where sal=(select min(sal) from
(select sal from(select distinct sal from emp order by sal desc)
where rownum<=n));
n can be the value you want to see......
you can see all the fields of that person who having nth highest salary*strong text*
I would add another two arguments:
An img tag is good if you need to resize the image. E.g. if the original image is 100px by 100 px, and you want it to be 80px by 80px, you can set the CSS width and height of the img tag. I don't know of any good way to do this using background-image. EDIT: This can now also be done with a background-image, using the background-size
CSS3 attribute.
Using background-image is good when you need to dynamically switch between sprites. E.g. if you have a button image, and you want a separate image displayed when the cursor is hovering over the element, you can use a background image containing both the normal and hover sprites, and dynamically change the background-position.
You can use hasOwnProperty
method to check this
> localStorage.setItem('foo', 123)
undefined
> localStorage.hasOwnProperty('foo')
true
> localStorage.hasOwnProperty('bar')
false
Works in current versions of Chrome(Mac), Firefox(Mac) and Safari.
I got it working using FileStream, get help from these
http://alperguc.blogspot.in/2008/11/c-generic-error-occurred-in-gdi.html
http://csharpdotnetfreak.blogspot.com/2010/02/resize-image-upload-ms-sql-database.html
System.Drawing.Image imageToBeResized = System.Drawing.Image.FromStream(fuImage.PostedFile.InputStream);
int imageHeight = imageToBeResized.Height;
int imageWidth = imageToBeResized.Width;
int maxHeight = 240;
int maxWidth = 320;
imageHeight = (imageHeight * maxWidth) / imageWidth;
imageWidth = maxWidth;
if (imageHeight > maxHeight)
{
imageWidth = (imageWidth * maxHeight) / imageHeight;
imageHeight = maxHeight;
}
Bitmap bitmap = new Bitmap(imageToBeResized, imageWidth, imageHeight);
System.IO.MemoryStream stream = new MemoryStream();
bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
stream.Position = 0;
byte[] image = new byte[stream.Length + 1];
stream.Read(image, 0, image.Length);
System.IO.FileStream fs
= new System.IO.FileStream(Server.MapPath("~/image/a.jpg"), System.IO.FileMode.Create
, System.IO.FileAccess.ReadWrite);
fs.Write(image, 0, image.Length);
If you specifically need to change the primary key value to a different number (ex 123 -> 1123). The identity property blocks changing a PK value. Set Identity_insert isn't going to work. Doing an Insert/Delete is not advisable if you have cascading deletes (unless you turn off referential integrity checking).
EDIT: Newer versions of SQL don't allow changing the syscolumns entity, so part of my solution has to be done the hard way. Refer to this SO on how to remove Identity from a primary key instead: Remove Identity from a column in a table This script will turn off identity on a PK:
***********************
sp_configure 'allow update', 1
go
reconfigure with override
go
update syscolumns set colstat = 0 --turn off bit 1 which indicates identity column
where id = object_id('table_name') and name = 'column_name'
go
exec sp_configure 'allow update', 0
go
reconfigure with override
go
***********************
Next, you can set the relationships so they'll update the foreign key references. Or else you need to turn off relationship enforcement. This SO link shows how: How can foreign key constraints be temporarily disabled using T-SQL?
Now, you can do your updates. I wrote a short script to write all my update SQL based on the same column name (in my case, I needed to increase the CaseID by 1,000,000:
select
'update ['+c.table_name+'] SET ['+Column_Name+']=['+Column_Name+']+1000000'
from Information_Schema.Columns as c
JOIN Information_Schema.Tables as t ON t.table_Name=c.table_name and t.Table_Schema=c.table_schema and t.table_type='BASE TABLE'
where Column_Name like 'CaseID' order by Ordinal_position
Lastly, re-enable referential integrity and then re-enable the Identity column on the primary key.
Note: I see some folks on these questions ask WHY. In my case, I have to merge data from a second production instance into a master DB so I can shut down the second instance. I just need all the PK/FKs of operations data to not collide. Meta-data FKs are identical.
I love schemaspy for schema visualisations. Look at the sample output they provide, and drool. Note the tabs!
You'll need to download the JDBC driver here, then your command should look something like:
java -jar schemaspy-6.0.0-rc2.jar -t pgsql -db database_name -host myhost -u username -p password -o ./schemaspy -dp postgresql-9.3-1100.jdbc3.jar -s public -noads
Sometimes using options -port
will not working if your database has diferrent port, so you have to add manual port after host parameter, for example:
java -jar schemaspy-6.0.0-rc2.jar -t pgsql -db database_name -host myhost:myport -u username -p password -o ./schemaspy -dp postgresql-9.3-1100.jdbc3.jar -s public -noads
You'll need to install graphviz
as well if you want graphics (apt-get install graphviz
for debian based distros).
I am using some nested layouts in Ruby on Rails, and in one of the layouts i have a need to read in a string from a div and set that as the title of the document.
The correct way to do this is on the server side.
In your layout, there at some point will be some code which puts the text in the div. Make this code also set some instance variable such as @page_title
, and then in your outer layout have it do <%= @page_title || 'Default Title' %>
VI shows newlines (LF character, code x0A
) by showing the subsequent text on the next line.
Use the -b
switch for binary mode. Eg vi -b filename
or vim -b filename --
.
It will then show CR characters (x0D
), which are not normally used in Unix style files, as the characters ^M
.
Let's suppose you have a book, probably a novel, a thick one with lots of things to read, hence lots of words. Now, hypothetically, you brought two dictionaries, consisting of only words that are only used, at least one time in the novel. All words in that two dictionaries are stored in typical alphabetical order. In hypothetical dictionary A, words are printed only once while in hypothetical dictionary B words are printed as many numbers of times it is printed in the novel. Remember, words are sorted alphabetically in both the dictionaries. Now you got stuck at some point while reading a novel and need to find the meaning of that word from anyone of those hypothetical dictionaries. What you will do? Surely you will jump to that word in a few steps to find its meaning, rather look for the meaning of each of the words in the novel, from starting, until you reach that bugging word.
This is how the index works in SQL. Consider Dictionary A as PRIMARY INDEX, Dictionary B as KEY/SECONDARY INDEX, and your desire to get for the meaning of the word as a QUERY/SELECT STATEMENT. The index will help to fetch the data at a very fast rate. Without an index, you will have to look for the data from the starting, unnecessarily time-consuming costly task.
For more about indexes and types, look this.
for this small example:
import socket
mysock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
mysock.connect(('www.py4inf.com', 80))
mysock.send(**b**'GET http://www.py4inf.com/code/romeo.txt HTTP/1.0\n\n')
while True:
data = mysock.recv(512)
if ( len(data) < 1 ) :
break
print (data);
mysock.close()
adding the "b" before 'GET http://www.py4inf.com/code/romeo.txt HTTP/1.0\n\n' solved my problem
curl
sends POST requests with the default content type of application/x-www-form-urlencoded
. If you want to send a JSON request, you will have to specify the correct content type header:
$ curl -vX POST http://server/api/v1/places.json -d @testplace.json \
--header "Content-Type: application/json"
But that will only work if the server accepts json input. The .json
at the end of the url may only indicate that the output is json, it doesn't necessarily mean that it also will handle json input. The API documentation should give you a hint on whether it does or not.
The reason you get a 401
and not some other error is probably because the server can't extract the auth_token
from your request.
I was having a similar issue when I wanted to modify the array state while retaining the position of the element in the array
This is a function to toggle between like and unlike:
const liker = (index) =>
setData((prevState) => {
prevState[index].like = !prevState[index].like;
return [...prevState];
});
as we can say the function takes the index of the element in the array state, and we go ahead and modify the old state and rebuild the state tree
You don't need a library beyond the standard one - just use Charset. (You can just use the String constructors and getBytes methods, but personally I don't like just working with the names of character encodings. Too much room for typos.)
EDIT: As pointed out in comments, you can still use Charset instances but have the ease of use of the String methods: new String(bytes, charset) and String.getBytes(charset).
See "URL Encoding (or: 'What are those "%20
" codes in URLs?')".
That's how I just did it on OsX 10.10.3
for f in *.txt; do (cat $f; echo '') >> fullData.txt; done
since the simple 'echo' command with no params ended up in no new lines inserted.
Yowsup provide best solution with example.you can download api from https://github.com/tgalal/yowsup let me know if you have any issue.
Since i have found issue uploading file in IE browser i would suggest to handle it like this.
View
@using (Html.BeginForm("UploadFile", "Home", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<input type="file" name="file" />
<input type="submit" value="Submit" />
}
Controller
public class HomeController : Controller
{
public ActionResult UploadFile()
{
return View();
}
[HttpPost]
public ActionResult UploadFile(MyModal Modal)
{
string DocumentName = string.Empty;
string Description = string.Empty;
if (!String.IsNullOrEmpty(Request.Form["DocumentName"].ToString()))
DocumentName = Request.Form["DocumentName"].ToString();
if (!String.IsNullOrEmpty(Request.Form["Description"].ToString()))
Description = Request.Form["Description"].ToString();
if (!String.IsNullOrEmpty(Request.Form["FileName"].ToString()))
UploadedDocument = Request.Form["FileName"].ToString();
HttpFileCollectionBase files = Request.Files;
string filePath = Server.MapPath("~/Root/Documents/");
if (!(Directory.Exists(filePath)))
Directory.CreateDirectory(filePath);
for (int i = 0; i < files.Count; i++)
{
HttpPostedFileBase file = files[i];
// Checking for Internet Explorer
if (Request.Browser.Browser.ToUpper() == "IE" || Request.Browser.Browser.ToUpper() == "INTERNETEXPLORER")
{
string[] testfiles = file.FileName.Split(new char[] { '\\' });
fname = testfiles[testfiles.Length - 1];
UploadedDocument = fname;
}
else
{
fname = file.FileName;
UploadedDocument = file.FileName;
}
file.SaveAs(fname);
return RedirectToAction("List", "Home");
}
You have several choices. The one that makes the most sense really depends on what you're trying to do.
Choice 1: make toyNumber a public member variable in a class
class MyToy {
public int toyNumber;
}
then pass a reference to a MyToy to your method.
void play(MyToy toy){
System.out.println("Toy number in play " + toy.toyNumber);
toy.toyNumber++;
System.out.println("Toy number in play after increement " + toy.toyNumber);
}
Choice 2: return the value instead of pass by reference
int play(int toyNumber){
System.out.println("Toy number in play " + toyNumber);
toyNumber++;
System.out.println("Toy number in play after increement " + toyNumber);
return toyNumber
}
This choice would require a small change to the callsite in main so that it reads, toyNumber = temp.play(toyNumber);
.
Choice 3: make it a class or static variable
If the two functions are methods on the same class or class instance, you could convert toyNumber into a class member variable.
Choice 4: Create a single element array of type int and pass that
This is considered a hack, but is sometimes employed to return values from inline class invocations.
void play(int [] toyNumber){
System.out.println("Toy number in play " + toyNumber[0]);
toyNumber[0]++;
System.out.println("Toy number in play after increement " + toyNumber[0]);
}
Update: This got fixed in C# 7.0 with pattern matching
switch (MyObj)
case Type1 t1:
case Type2 t2:
case Type3 t3:
Old answer:
It is a hole in C#'s game, no silver bullet yet.
You should google on the 'visitor pattern' but it might be a little heavy for you but still something you should know about.
Here's another take on the matter using Linq: http://community.bartdesmet.net/blogs/bart/archive/2008/03/30/a-functional-c-type-switch.aspx
Otherwise something along these lines could help
// nasty..
switch(MyObj.GetType.ToString()){
case "Type1": etc
}
// clumsy...
if myObj is Type1 then
if myObj is Type2 then
etc.
You can simply use use $parent.$index .where parent will represent object of parent repeating object .
Ctrl+Shift+H not the real solution.
You can use Resharper to change your all namespace definitions in your solution. This is the best way I tried before.
https://www.jetbrains.com/resharper/features/code_refactoring.html
This will bring back totals per property and type
SELECT PropertyID,
TYPE,
SUM(Amount)
FROM yourTable
GROUP BY PropertyID,
TYPE
This will bring back only active values
SELECT PropertyID,
TYPE,
SUM(Amount)
FROM yourTable
WHERE EndDate IS NULL
GROUP BY PropertyID,
TYPE
and this will bring back totals for properties
SELECT PropertyID,
SUM(Amount)
FROM yourTable
WHERE EndDate IS NULL
GROUP BY PropertyID
......
By example:
# select distinct code from Platform where id in ( select platform__id from Build where product=p)
pl_ids = Build.objects.values('platform__id').filter(product=p)
platforms = Platform.objects.values_list('code', flat=True).filter(id__in=pl_ids).distinct('code')
platforms = list(platforms) if platforms else []
Seeing that it appears you are running using the SQL syntax, try with the correct wild card.
SELECT * FROM someTable WHERE (someTable.Field NOT LIKE '%RISK%') AND (someTable.Field NOT LIKE '%Blah%') AND someTable.SomeOtherField <> 4;
use ng-intl-tel-input to validate mobile numbers for all countries. you can set default country also. on npm: https://www.npmjs.com/package/ng-intl-tel-input
more details: https://techpituwa.wordpress.com/2017/03/29/angular-js-phone-number-validation-with-ng-intl-tel-input/
You must be root.
sudo su -
asterisk -r
Laravel 419 post error is usually related with api.php and token authorization
Laravel automatically generates a CSRF "token" for each active user session managed by the application. This token is used to verify that the authenticated user is the one actually making the requests to the application.
Add this to your ajax call
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
or you can exclude some URIs in VerifyCSRF token middleware
protected $except = [
'/route_you_want_to_ignore',
'/route_group/*
];
Why are you combining GET and POST? Use one or the other.
$.ajax({
type: 'post',
data: {
timestamp: timestamp,
uid: uid
...
}
});
php:
$uid =$_POST['uid'];
Or, just format your request properly (you're missing the ampersands for the get parameters).
url:"getdata.php?timestamp="+timestamp+"&uid="+id+"&uname="+name,
Whenever You merge two branches using command git merge brancha branchb
, There are two possibilities:
One branch (lets say brancha) can be reached by the other branch (lets say branchb) by following its commits history.In this case git simply fast-forward the head to point to the recent branch (in this case branchb).
2.But if the two branches have diverged at some older point then git creates a new snapshot and add a new commit that points to it. So in case there is no conflict between the branches you are merging, git smoothly creates a new commit.
Run
git log
to see the commit after you have merged two non-conflicting branches.
Now coming back to the interesting case when there are merge conflicts between the merging branches. I quote this from the page https://git-scm.com/book/en/v2/Git-Branching-Basic-Branching-and-Merging
Git hasn’t automatically created a new merge commit. It has paused the process while you resolve the conflict. If you want to see which files are unmerged at any point after a merge conflict, you can run
git status
So in case there are merge conflicts, you need to resolve the conflict then add the changes you have made to the staging area using git add filename
and then commit the changes by using the command git commit
which was paused by git because of the conflict.I hope this explains your query. Also do visit the link above for a detailed understanding. In case of any query please comment below , I'll be happy to help.
Use this code to find top most UIViewController
func getTopViewController() -> UIViewController? {
var topController: UIViewController? = UIApplication.shared.keyWindow?.rootViewController
while topController?.presentedViewController != nil {
topController = topController?.presentedViewController
}
return topController
}
I added line under under h3 tag like this
<h3 class="home_title">Your title here</h3>
.home_title{
display:block;
}
.home_title:after {
display:block;
clear:both;
content : "";
position: relative;
left : 0;
bottom : 0;
max-width:250px;
height : 1px;
width : 50%; /* or 100px */
border-bottom:1px solid #e2000f;
margin:0 auto;
padding:4px 0px;
}
HTML with font-awesome glyphicon.
<span class="fa fa-spinner spin"></span>
CSS
@-moz-keyframes spin {
to { -moz-transform: rotate(360deg); }
}
@-webkit-keyframes spin {
to { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
to {transform:rotate(360deg);}
}
.spin {
animation: spin 1000ms linear infinite;
}
Sorry guys.. maybe it's a bit late.. I've been using NoGray.. it's cool..
You are building a DataGridView on the fly and set the DataSource for it. That's good, but then do you add the DataGridView to the Controls collection of the hosting form?
this.Controls.Add(dataGridView1);
By the way the code is a bit confused
String connection = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\\Tables.accdb;Persist Security Info=True";
string sql = "SELECT Clients FROM Tables";
using(OleDbConnection conn = new OleDbConnection(connection))
{
conn.Open();
DataSet ds = new DataSet();
DataGridView dataGridView1 = new DataGridView();
using(OleDbDataAdapter adapter = new OleDbDataAdapter(sql,conn))
{
adapter.Fill(ds);
dataGridView1.DataSource = ds;
// Of course, before addint the datagrid to the hosting form you need to
// set position, location and other useful properties.
// Why don't you create the DataGrid with the designer and use that instance instead?
this.Controls.Add(dataGridView1);
}
}
EDIT After the comments below it is clear that there is a bit of confusion between the file name (TABLES.ACCDB) and the name of the table CLIENTS.
The SELECT statement is defined (in its basic form) as
SELECT field_names_list FROM _tablename_
so the correct syntax to use for retrieving all the clients data is
string sql = "SELECT * FROM Clients";
where the *
means -> all the fields present in the table
Some threads do background tasks, like sending keepalive packets, or performing periodic garbage collection, or whatever. These are only useful when the main program is running, and it's okay to kill them off once the other, non-daemon, threads have exited.
Without daemon threads, you'd have to keep track of them, and tell them to exit, before your program can completely quit. By setting them as daemon threads, you can let them run and forget about them, and when your program quits, any daemon threads are killed automatically.
You do this via attributes on the properties, like this:
[Description("Test text displayed in the textbox"),Category("Data")]
public string Text {
get => myInnerTextBox.Text;
set => myInnerTextBox.Text = value;
}
The category is the heading under which the property will appear in the Visual Studio Properties box. Here's a more complete MSDN reference, including a list of categories.
Try the following
var original = 'www.test.com';
var stripped = original.substring(4);
Select * from your_table
WHERE col1 and col2 and col3 and col4 and col5 IS NOT NULL;
The only disadvantage of this approach is that you can only compare 5 columns, after that the result will always be false, so I do compare only the fields that can be NULL
.
Difference between Comparator and Comparable interfaces
Comparable
is used to compare itself by using with another object.
Comparator
is used to compare two datatypes are objects.
Here is the most simple way.
import tkinter as tk
root = tk.Tk()
root.geometry('200x200')
root.resizable(width=0, height=0)
root.mainloop()
I don't think there is anything to specify. It's pretty straight forward.
Here is what I've done:
C:\xampp\php
php.ini
using your text editor, preferably you can also you Notepad for Windows machine.upload_max_filesize = 128M
post_max_size = 128M
max_execution_time = 300
max_input_time = 60
Done!
Try this- Close the project then open it. It links with svn automatically,if project was checked out from valid svn path.
In general, you can use a backslash at the end of a line in order for the command to continue on to the next line. However, there are cases where commands are implicitly continued, namely when the line ends with a token than cannot legally terminate a command. In that case, the shell knows that more is coming, and the backslash can be omitted. Some examples:
# In general
$ echo "foo" \
> "bar"
foo bar
# Pipes
$ echo foo |
> cat
foo
# && and ||
$ echo foo &&
> echo bar
foo
bar
$ false ||
> echo bar
bar
Different, but related, is the implicit continuation inside quotes. In this case, without a backslash, you are simply adding a newline to the string.
$ x="foo
> bar"
$ echo "$x"
foo
bar
With a backslash, you are again splitting the logical line into multiple logical lines.
$ x="foo\
> bar"
$ echo "$x"
foobar
Before take the width make the parent display show ,then take the width and finally make the parent display hide. Just like following
$('#parent').show();
var tableWidth = $('#parent').children('table').outerWidth();
$('#parent').hide();
if (tableWidth > $('#parent').width())
{
$('#parent').width() = tableWidth;
}
You can use XRegExp, an augmented, extensible, cross-browser implementation of regular expressions, including support for additional syntax, flags, and methods:
s
, to make dot match all characters (aka dotall or singleline mode), and x
, for free-spacing and comments (aka extended mode).UCanAccess is a pure Java JDBC driver that allows us to read from and write to Access databases without using ODBC. It uses two other packages, Jackcess and HSQLDB, to perform these tasks. The following is a brief overview of how to get it set up.
If your project uses Maven you can simply include UCanAccess via the following coordinates:
groupId: net.sf.ucanaccess
artifactId: ucanaccess
The following is an excerpt from pom.xml
, you may need to update the <version>
to get the most recent release:
<dependencies>
<dependency>
<groupId>net.sf.ucanaccess</groupId>
<artifactId>ucanaccess</artifactId>
<version>4.0.4</version>
</dependency>
</dependencies>
As mentioned above, UCanAccess requires Jackcess and HSQLDB. Jackcess in turn has its own dependencies. So to use UCanAccess you will need to include the following components:
UCanAccess (ucanaccess-x.x.x.jar)
HSQLDB (hsqldb.jar, version 2.2.5 or newer)
Jackcess (jackcess-2.x.x.jar)
commons-lang (commons-lang-2.6.jar, or newer 2.x version)
commons-logging (commons-logging-1.1.1.jar, or newer 1.x version)
Fortunately, UCanAccess includes all of the required JAR files in its distribution file. When you unzip it you will see something like
ucanaccess-4.0.1.jar
/lib/
commons-lang-2.6.jar
commons-logging-1.1.1.jar
hsqldb.jar
jackcess-2.1.6.jar
All you need to do is add all five (5) JARs to your project.
NOTE: Do not add
loader/ucanload.jar
to your build path if you are adding the other five (5) JAR files. TheUcanloadDriver
class is only used in special circumstances and requires a different setup. See the related answer here for details.
Eclipse: Right-click the project in Package Explorer and choose Build Path > Configure Build Path...
. Click the "Add External JARs..." button to add each of the five (5) JARs. When you are finished your Java Build Path should look something like this
NetBeans: Expand the tree view for your project, right-click the "Libraries" folder and choose "Add JAR/Folder...", then browse to the JAR file.
After adding all five (5) JAR files the "Libraries" folder should look something like this:
IntelliJ IDEA: Choose File > Project Structure...
from the main menu. In the "Libraries" pane click the "Add" (+
) button and add the five (5) JAR files. Once that is done the project should look something like this:
Now "U Can Access" data in .accdb and .mdb files using code like this
// assumes...
// import java.sql.*;
Connection conn=DriverManager.getConnection(
"jdbc:ucanaccess://C:/__tmp/test/zzz.accdb");
Statement s = conn.createStatement();
ResultSet rs = s.executeQuery("SELECT [LastName] FROM [Clients]");
while (rs.next()) {
System.out.println(rs.getString(1));
}
At the time of writing this Q&A I had no involvement in or affiliation with the UCanAccess project; I just used it. I have since become a contributor to the project.
If you like python and have an option to install a package, you can use this utility that I made.
# install pythonp
python -m pip install pythonp
pythonp "5*5"
25
pythonp "1 / (1+math.exp(0.5))"
0.3775406687981454
# define a custom function and pass it to another higher-order function
pythonp "n=10;functools.reduce(lambda x,y:x*y, range(1,n+1))"
3628800
Wanted to add comment to the answer given by Hank but some how I am not able to - please treat it as comment
LinkedHashMap maintains access order as well based on parameter passed in its constructor It keeps doubly lined list to maintain order (See LinkedHashMap.Entry)
@Pacerier it is correct that LinkedHashMap keeps same order while iteration if element is added again but that is only in case of insertion order mode.
this is what I found in java docs of LinkedHashMap.Entry object
/**
* This method is invoked by the superclass whenever the value
* of a pre-existing entry is read by Map.get or modified by Map.set.
* If the enclosing Map is access-ordered, it moves the entry
* to the end of the list; otherwise, it does nothing.
*/
void recordAccess(HashMap<K,V> m) {
LinkedHashMap<K,V> lm = (LinkedHashMap<K,V>)m;
if (lm.accessOrder) {
lm.modCount++;
remove();
addBefore(lm.header);
}
}
this method takes care of moving recently accessed element to end of the list. So all in all LinkedHashMap is best data structure for implementing LRUCache.
Here is one more example:
.form-control::-webkit-input-placeholder {_x000D_
color: red;_x000D_
width: 250px;_x000D_
}_x000D_
h1 {_x000D_
color: red;_x000D_
}
_x000D_
<div class="col-sm-4">_x000D_
<input class="form-control" placeholder="Enter text here.." ng-model="Email" required/>_x000D_
</div>
_x000D_
Update: This answer is outdated as newer versions of libraries mentioned are released since then.
Socket.IO v0.9 is outdated and a bit buggy, and Engine.IO is the interim successor. Socket.IO v1.0 (which will be released soon) will use Engine.IO and be much better than v0.9. I'd recommend you to use Engine.IO until Socket.IO v1.0 is released.
"ws" does not support fallback, so if the client browser does not support websockets, it won't work, unlike Socket.IO and Engine.IO which uses long-polling etc if websockets are not available. However, "ws" seems like the fastest library at the moment.
See my article comparing Socket.IO, Engine.IO and Primus: https://medium.com/p/b63bfca0539
On windows, simply pressing 'q' on the keyboard quits this screen. I got it when I was reading help using '!help' or simply 'help' and 'enter', from the DOS prompt.
Happy Coding :-)
This is, in essence, what AJAX is for. Your page loads, and you add an event to an element. When the user causes the event to be triggered, say by clicking something, your Javascript uses the XMLHttpRequest object to send a request to a server.
After the server responds (presumably with output), another Javascript function/event gives you a place to work with that output, including simply sticking it into the page like any other piece of HTML.
You can do it "by hand" with plain Javascript , or you can use jQuery. Depending on the size of your project and particular situation, it may be more simple to just use plain Javascript .
In this very basic example, we send a request to myAjax.php
when the user clicks a link. The server will generate some content, in this case "hello world!". We will put into the HTML element with the id output
.
The javascript
// handles the click event for link 1, sends the query
function getOutput() {
getRequest(
'myAjax.php', // URL for the PHP file
drawOutput, // handle successful request
drawError // handle error
);
return false;
}
// handles drawing an error message
function drawError() {
var container = document.getElementById('output');
container.innerHTML = 'Bummer: there was an error!';
}
// handles the response, adds the html
function drawOutput(responseText) {
var container = document.getElementById('output');
container.innerHTML = responseText;
}
// helper function for cross-browser request object
function getRequest(url, success, error) {
var req = false;
try{
// most browsers
req = new XMLHttpRequest();
} catch (e){
// IE
try{
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
// try an older version
try{
req = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
return false;
}
}
}
if (!req) return false;
if (typeof success != 'function') success = function () {};
if (typeof error!= 'function') error = function () {};
req.onreadystatechange = function(){
if(req.readyState == 4) {
return req.status === 200 ?
success(req.responseText) : error(req.status);
}
}
req.open("GET", url, true);
req.send(null);
return req;
}
The HTML
<a href="#" onclick="return getOutput();"> test </a>
<div id="output">waiting for action</div>
The PHP
// file myAjax.php
<?php
echo 'hello world!';
?>
Try it out: http://jsfiddle.net/GRMule/m8CTk/
Arguably, that is a lot of Javascript code. You can shorten that up by tightening the blocks or using more terse logic operators, of course, but there's still a lot going on there. If you plan on doing a lot of this type of thing on your project, you might be better off with a javascript library.
Using the same HTML and PHP from above, this is your entire script (with jQuery included on the page). I've tightened up the code a little to be more consistent with jQuery's general style, but you get the idea:
// handles the click event, sends the query
function getOutput() {
$.ajax({
url:'myAjax.php',
complete: function (response) {
$('#output').html(response.responseText);
},
error: function () {
$('#output').html('Bummer: there was an error!');
}
});
return false;
}
Try it out: http://jsfiddle.net/GRMule/WQXXT/
Don't rush out for jQuery just yet: adding any library is still adding hundreds or thousands of lines of code to your project just as surely as if you had written them. Inside the jQuery library file, you'll find similar code to that in the first example, plus a whole lot more. That may be a good thing, it may not. Plan, and consider your project's current size and future possibility for expansion and the target environment or platform.
If this is all you need to do, write the plain javascript once and you're done.
Documentation
XMLHttpRequest
on MDN - https://developer.mozilla.org/en/XMLHttpRequestXMLHttpRequest
on MSDN - http://msdn.microsoft.com/en-us/library/ie/ms535874%28v=vs.85%29.aspxjQuery.ajax
- http://api.jquery.com/jQuery.ajax/I think you can use smtpjs.com
Just to save some of you time...
On my Galaxy S v.2.3.3 Shared Preferences are not stored in:/data/data/YOUR_PACKAGE_NAME/shared_prefs/YOUR_PREFS_NAME.xml
but are now located in: /dbdata/databases/YOUR_PACKAGE_NAME/shared_prefs/YOUR_PREFS_NAME.xml
I believe they changed this in 2.3
You can use:
String.prototype.replaceAll = function(search, replace) {
if (replace === undefined) {
return this.toString();
}
return this.split(search).join(replace);
}
For python 2.7 I had the same issue Just use "from __future__ import print_function" without quotes to resolve this issue.This Ensures Python 2.6 and later Python 2.x can use Python 3.x print function.
No need to use expensive regex
, if barely needed then try-
Use r'(/)(?=$)'
pattern that is capture last /
and replace with r''
i.e. blank character.
>>>re.sub(r'(/)(?=$)',r'','/home/ro/A_Python_Scripts/flask-auto/myDirectory/scarlett Johanson/1448543562.17.jpg/')
>>>'/home/ro/A_Python_Scripts/flask-auto/myDirectory/scarlett Johanson/1448543562.17.jpg'
You can snoop around in your memory using RTLMoveMemory and retrieve the desired information directly from there:
32-Bit:
Option Explicit
'Provide direct memory access:
Public Declare Sub MemCopy Lib "kernel32" Alias "RtlMoveMemory" ( _
ByVal Destination As Long, _
ByVal Source As Long, _
ByVal Length As Long)
Function CollectionKeys(oColl As Collection) As String()
'Declare Pointer- / Memory-Address-Variables
Dim CollPtr As Long
Dim KeyPtr As Long
Dim ItemPtr As Long
'Get MemoryAddress of Collection Object
CollPtr = VBA.ObjPtr(oColl)
'Peek ElementCount
Dim ElementCount As Long
ElementCount = PeekLong(CollPtr + 16)
'Verify ElementCount
If ElementCount <> oColl.Count Then
'Something's wrong!
Stop
End If
'Declare Simple Counter
Dim index As Long
'Declare Temporary Array to hold our keys
Dim Temp() As String
ReDim Temp(ElementCount)
'Get MemoryAddress of first CollectionItem
ItemPtr = PeekLong(CollPtr + 24)
'Loop through all CollectionItems in Chain
While Not ItemPtr = 0 And index < ElementCount
'increment Index
index = index + 1
'Get MemoryAddress of Element-Key
KeyPtr = PeekLong(ItemPtr + 16)
'Peek Key and add to temporary array (if present)
If KeyPtr <> 0 Then
Temp(index) = PeekBSTR(KeyPtr)
End If
'Get MemoryAddress of next Element in Chain
ItemPtr = PeekLong(ItemPtr + 24)
Wend
'Assign temporary array as Return-Value
CollectionKeys = Temp
End Function
'Peek Long from given MemoryAddress
Public Function PeekLong(Address As Long) As Long
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLong), Address, 4&)
End Function
'Peek String from given MemoryAddress
Public Function PeekBSTR(Address As Long) As String
Dim Length As Long
If Address = 0 Then Stop
Length = PeekLong(Address - 4)
PeekBSTR = Space(Length \ 2)
Call MemCopy(VBA.StrPtr(PeekBSTR), Address, Length)
End Function
64-Bit:
Option Explicit
'Provide direct memory access:
Public Declare PtrSafe Sub MemCopy Lib "kernel32" Alias "RtlMoveMemory" ( _
ByVal Destination As LongPtr, _
ByVal Source As LongPtr, _
ByVal Length As LongPtr)
Function CollectionKeys(oColl As Collection) As String()
'Declare Pointer- / Memory-Address-Variables
Dim CollPtr As LongPtr
Dim KeyPtr As LongPtr
Dim ItemPtr As LongPtr
'Get MemoryAddress of Collection Object
CollPtr = VBA.ObjPtr(oColl)
'Peek ElementCount
Dim ElementCount As Long
ElementCount = PeekLong(CollPtr + 28)
'Verify ElementCount
If ElementCount <> oColl.Count Then
'Something's wrong!
Stop
End If
'Declare Simple Counter
Dim index As Long
'Declare Temporary Array to hold our keys
Dim Temp() As String
ReDim Temp(ElementCount)
'Get MemoryAddress of first CollectionItem
ItemPtr = PeekLongLong(CollPtr + 40)
'Loop through all CollectionItems in Chain
While Not ItemPtr = 0 And index < ElementCount
'increment Index
index = index + 1
'Get MemoryAddress of Element-Key
KeyPtr = PeekLongLong(ItemPtr + 24)
'Peek Key and add to temporary array (if present)
If KeyPtr <> 0 Then
Temp(index) = PeekBSTR(KeyPtr)
End If
'Get MemoryAddress of next Element in Chain
ItemPtr = PeekLongLong(ItemPtr + 40)
Wend
'Assign temporary array as Return-Value
CollectionKeys = Temp
End Function
'Peek Long from given Memory-Address
Public Function PeekLong(Address As LongPtr) As Long
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLong), Address, 4^)
End Function
'Peek LongLong from given Memory Address
Public Function PeekLongLong(Address As LongPtr) As LongLong
If Address = 0 Then Stop
Call MemCopy(VBA.VarPtr(PeekLongLong), Address, 8^)
End Function
'Peek String from given MemoryAddress
Public Function PeekBSTR(Address As LongPtr) As String
Dim Length As Long
If Address = 0 Then Stop
Length = PeekLong(Address - 4)
PeekBSTR = Space(Length \ 2)
Call MemCopy(VBA.StrPtr(PeekBSTR), Address, CLngLng(Length))
End Function
Use log4j in your java program instead. Then you can output to multiple media, create rolling logs, etc. and include timestamps, class names and line numbers.
Realizing this is a bit of an old question, the responses helped me come up with a solution to testing command line arguments to a batch file; so I wanted to post my solution as well in case anyone else was looking for a similar solution.
First thing that I should point out is that I was having trouble getting IF ... ELSE statements to work inside of a FOR ... DO clause. Turns out (thanks to dbenham for inadvertently pointing this out in his examples) the ELSE statement cannot be on a separate line from the closing parens.
So instead of this:
FOR ... DO (
IF ... (
)
ELSE (
)
)
Which is my preference for readability and aesthetic reasons, you have to do this:
FOR ... DO (
IF ... (
) ELSE (
)
)
Now the ELSE statement doesn't return as an unrecognized command.
Finally, here's what I was attempting to do - I wanted to be able to pass several arguments to a batch file in any order, ignoring case, and reporting/failing on undefined arguments passed in. So here's my solution...
@ECHO OFF
SET ARG1=FALSE
SET ARG2=FALSE
SET ARG3=FALSE
SET ARG4=FALSE
SET ARGS=(arg1 Arg1 ARG1 arg2 Arg2 ARG2 arg3 Arg3 ARG3)
SET ARG=
FOR %%A IN (%*) DO (
SET TRUE=
FOR %%B in %ARGS% DO (
IF [%%A] == [%%B] SET TRUE=1
)
IF DEFINED TRUE (
SET %%A=TRUE
) ELSE (
SET ARG=%%A
GOTO UNDEFINED
)
)
ECHO %ARG1%
ECHO %ARG2%
ECHO %ARG3%
ECHO %ARG4%
GOTO END
:UNDEFINED
ECHO "%ARG%" is not an acceptable argument.
GOTO END
:END
Note, this will only report on the first failed argument. So if the user passes in more than one unacceptable argument, they will only be told about the first until it's corrected, then the second, etc.
@BD at Rivenhill: Since this old question has gotten renewed attention last year, let us go on a bit, just for the sake of discussion.
The body of your doIt
method does not do anything T
-specific at all. Here it is:
public class Clazz<T> {
static <T> void doIt(T object) {
System.out.println("shake that booty '" + object.getClass().toString()
+ "' !!!");
}
// ...
}
So you can entirely drop all type variables and just code
public class Clazz {
static void doIt(Object object) {
System.out.println("shake that booty '" + object.getClass().toString()
+ "' !!!");
}
// ...
}
Ok. But let's get back closer to the original problem. The first type variable on the class declaration is redundant. Only the second one on the method is needed. Here we go again, but it is not the final answer, yet:
public class Clazz {
static <T extends Saying> void doIt(T object) {
System.out.println("shake that booty "+ object.say());
}
public static void main(String args[]) {
Clazz.doIt(new KC());
Clazz.doIt(new SunshineBand());
}
}
// Output:
// KC
// Sunshine
interface Saying {
public String say();
}
class KC implements Saying {
public String say() {
return "KC";
}
}
class SunshineBand implements Saying {
public String say() {
return "Sunshine";
}
}
However, it's all too much fuss about nothing, since the following version works just the same way. All it needs is the interface type on the method parameter. No type variables in sight anywhere. Was that really the original problem?
public class Clazz {
static void doIt(Saying object) {
System.out.println("shake that booty "+ object.say());
}
public static void main(String args[]) {
Clazz.doIt(new KC());
Clazz.doIt(new SunshineBand());
}
}
interface Saying {
public String say();
}
class KC implements Saying {
public String say() {
return "KC";
}
}
class SunshineBand implements Saying {
public String say() {
return "Sunshine";
}
}
You can reload a module when it has already been imported by using the reload
builtin function (Python 3.4+ only):
from importlib import reload
import foo
while True:
# Do some things.
if is_changed(foo):
foo = reload(foo)
In Python 3, reload
was moved to the imp
module. In 3.4, imp
was deprecated in favor of importlib
, and reload
was added to the latter. When targeting 3 or later, either reference the appropriate module when calling reload
or import it.
I think that this is what you want. Web servers like Django's development server use this so that you can see the effects of your code changes without restarting the server process itself.
To quote from the docs:
Python modules’ code is recompiled and the module-level code reexecuted, defining a new set of objects which are bound to names in the module’s dictionary. The init function of extension modules is not called a second time. As with all other objects in Python the old objects are only reclaimed after their reference counts drop to zero. The names in the module namespace are updated to point to any new or changed objects. Other references to the old objects (such as names external to the module) are not rebound to refer to the new objects and must be updated in each namespace where they occur if that is desired.
As you noted in your question, you'll have to reconstruct Foo
objects if the Foo
class resides in the foo
module.
In your example, it’s fine as it is: it’s simple and works. The only things I’d suggest are:
make sure your API is sending the Content-Type
header to tell the client to expect a JSON response:
header('Content-Type: application/json');
echo json_encode($response);
Other than that, an API is something that takes an input and provides an output. It’s possible to “over-engineer” things, in that you make things more complicated that need be.
If you wanted to go down the route of controllers and models, then read up on the MVC pattern and work out how your domain objects fit into it. Looking at the above example, I can see maybe a MathController
with an add()
action/method.
There are a few starting point projects for RESTful APIs on GitHub that are worth a look.
"Better" is subjective.
querySelector
is the newer feature.
getElementById
is better supported than querySelector
.
querySelector
is better supported than getElementsByClassName
.
querySelector
lets you find elements with rules that can't be expressed with getElementById
and getElementsByClassName
You need to pick the appropriate tool for any given task.
(In the above, for querySelector
read querySelector
/ querySelectorAll
).
Query to achieve your requirment
SELECT id,GROUP_CONCAT(text SEPARATOR ' ') AS text FROM table_name group by id;
You can just concatenate the strings and build a command line.
std::string command = a + ' ' + b + " > " + c;
system(command.c_str());
You don't need any extra libraries for this.
Neither databases, nor tablespaces nor data files belong to any user. Are you coming to this from an MS SQL background?
select tablespace_name,
file_name
from dba_tablespaces
order by tablespace_name,
file_name;
i was having the same issue while generating the classes from wsimport goal. Instead of using jaxws:wsimport goal in eclipse Maven Build i was using clean compile install that was not able to generate code from wsdl file. Thanks to above example. Run jaxws:wsimport goal from Eclipse ide and it will work