How about htis:
Private Sub ArrangeWindows(Order As Window())
For I As Integer = 1 To Order.Length -1
Order(I).Owner = Order(I - 1)
Next
End Sub
By the way, a history of Java SE versions.
You can simply check out a new branch, and then commit:
git checkout -b my_new_branch
git commit
Checking out the new branch will not discard your changes.
go to Run Configuration and in argument tab you can write your argument
You can add .vim
files to be executed whenever vim switches to a particular filetype.
For example, I have a file ~/.vim/after/ftplugin/html.vim
with this contents:
setlocal shiftwidth=2
setlocal tabstop=2
Which causes vim to use tabs with a width of 2 characters for indenting (the noexpandtab
option is set globally elsewhere in my configuration).
This is described here: http://vimdoc.sourceforge.net/htmldoc/usr_05.html#05.4, scroll down to the section on filetype plugins.
If you are using Underscore.js or Lodash, there is a function 'omit' that will do it.
http://underscorejs.org/#omit
var thisIsObject= {
'Cow' : 'Moo',
'Cat' : 'Meow',
'Dog' : 'Bark'
};
_.omit(thisIsObject,'Cow'); //It will return a new object
=> {'Cat' : 'Meow', 'Dog' : 'Bark'} //result
If you want to modify the current object, assign the returning object to the current object.
thisIsObject = _.omit(thisIsObject,'Cow');
With pure JavaScript, use:
delete thisIsObject['Cow'];
Another option with pure JavaScript.
thisIsObject.cow = undefined;
thisIsObject = JSON.parse(JSON.stringify(thisIsObject ));
For Current date and time as the name for a file on the file system. Now call the string.Format method, and combine it with DateTime.Now, for a method that outputs the correct string based on the date and time.
using System;
using System.IO;
class Program
{
static void Main()
{
//
// Write file containing the date with BIN extension
//
string n = string.Format("text-{0:yyyy-MM-dd_hh-mm-ss-tt}.bin",
DateTime.Now);
File.WriteAllText(n, "abc");
}
}
Output :
C:\Users\Fez\Documents\text-2020-01-08_05-23-13-PM.bin
"text-{0:yyyy-MM-dd_hh-mm-ss-tt}.bin"
text- The first part of the output required Files will all start with text-
{0: Indicates that this is a string placeholder The zero indicates the index of the parameters inserted here
yyyy- Prints the year in four digits followed by a dash This has a "year 10000" problem
MM- Prints the month in two digits
dd_ Prints the day in two digits followed by an underscore
hh- Prints the hour in two digits
mm- Prints the minute, also in two digits
ss- As expected, it prints the seconds
tt Prints AM or PM depending on the time of day
simply add the following attribute
// for disabled i.e. cannot highlight value or change
disabled="disabled"
// for readonly i.e. can highlight value but not change
readonly="readonly"
jQuery to make the change to the element (substitute disabled
for readonly
in the following for setting readonly
attribute).
$('#fieldName').attr("disabled","disabled")
or
$('#fieldName').attr("disabled", true)
NOTE: As of jQuery 1.6, it is recommended to use .prop()
instead of .attr()
. The above code will work exactly the same except substitute .attr()
for .prop()
.
frame_files <- lapply(sys.frames(), function(x) x$ofile)
frame_files <- Filter(Negate(is.null), frame_files)
PATH <- dirname(frame_files[[length(frame_files)]])
Don't ask me how it works though, because I've forgotten :/
This configuration to your nginx.conf should help you.
https://gist.github.com/baskaran-md/e46cc25ccfac83f153bb
server {
listen 80;
server_name localhost;
location / {
root html;
index index.html index.htm;
}
error_page 404 /404.html;
error_page 403 /403.html;
# To allow POST on static pages
error_page 405 =200 $uri;
# ...
}
You can do
window.close();
window.open("index.html");
and it worked successfully on my website.
You should be checking the root directory and not the app directory.
Look in $ROOT/storage/laravel.log
not app/storage/laravel.log
, where root is the top directory of the project.
If having the directory already exist is not a problem for you, you could just redirect stderr for that command, getting rid of the error message:
-mkdir $(OBJDIR) 2>/dev/null
Values known at compile time can (and in my opinion should) be marked as constant.
Naming conventions should follow Java ones and should be properly visible when used from Java code (it's somehow hard to achieve with companion objects, but anyway).
The proper constant declarations are:
const val MY_CONST = "something"
const val MY_INT = 1
the simple way to remove
new java.text.DecimalFormat("#").format(value)
The new :is()
CSS pseudo-class can do it in one selector:
:is(h1, h2, h3, h4, h5, h6) {
color: red;
}
Although the accepted answer works fine, since v0.21.0rc1 it gives a warning
UserWarning: Pandas doesn't allow columns to be created via a new attribute name
Instead, one can do
df[["X", "A", "B", "C"]].plot(x="X", kind="bar")
Download and install packages and dependencies
Usage:
go get [-d] [-f] [-t] [-u] [-v] [-fix] [-insecure] [build flags] [packages]
Get downloads the packages named by the import paths, along with their dependencies. It then installs the named packages, like 'go install'.
The -d flag instructs get to stop after downloading the packages; that is, it instructs get not to install the packages.
The -f flag, valid only when -u is set, forces get -u not to verify that each package has been checked out from the source control repository implied by its import path. This can be useful if the source is a local fork of the original.
The -fix flag instructs get to run the fix tool on the downloaded packages before resolving dependencies or building the code.
The -insecure flag permits fetching from repositories and resolving custom domains using insecure schemes such as HTTP. Use with caution.
The -t flag instructs get to also download the packages required to build the tests for the specified packages.
The -u flag instructs get to use the network to update the named packages and their dependencies. By default, get uses the network to check out missing packages but does not use it to look for updates to existing packages.
The -v flag enables verbose progress and debug output.
Get also accepts build flags to control the installation. See 'go help build'.
When checking out a new package, get creates the target directory GOPATH/src/. If the GOPATH contains multiple entries, get uses the first one. For more details see: 'go help gopath'.
When checking out or updating a package, get looks for a branch or tag that matches the locally installed version of Go. The most important rule is that if the local installation is running version "go1", get searches for a branch or tag named "go1". If no such version exists it retrieves the default branch of the package.
When go get checks out or updates a Git repository, it also updates any git submodules referenced by the repository.
Get never checks out or updates code stored in vendor directories.
For more about specifying packages, see 'go help packages'.
For more about how 'go get' finds source code to download, see 'go help importpath'.
This text describes the behavior of get when using GOPATH to manage source code and dependencies. If instead the go command is running in module-aware mode, the details of get's flags and effects change, as does 'go help get'. See 'go help modules' and 'go help module-get'.
See also: go build, go install, go clean.
For example, showing verbose output,
$ go get -v github.com/capotej/groupcache-db-experiment/...
github.com/capotej/groupcache-db-experiment (download)
github.com/golang/groupcache (download)
github.com/golang/protobuf (download)
github.com/capotej/groupcache-db-experiment/api
github.com/capotej/groupcache-db-experiment/client
github.com/capotej/groupcache-db-experiment/slowdb
github.com/golang/groupcache/consistenthash
github.com/golang/protobuf/proto
github.com/golang/groupcache/lru
github.com/capotej/groupcache-db-experiment/dbserver
github.com/capotej/groupcache-db-experiment/cli
github.com/golang/groupcache/singleflight
github.com/golang/groupcache/groupcachepb
github.com/golang/groupcache
github.com/capotej/groupcache-db-experiment/frontend
$
"this" keyword refers to current class reference. That means, when it is used inside the method, the 'current' class is still SubClass and so, the answer is explained.
Element is not supported in IE8 out of the box you have to do some work to make IE8 accept custom tags.
One advantage of using an attribute over an element is that you can apply multiple directives to the same DOM node. This is particularly handy for things like form controls where you can highlight, disable, or add labels etc. with additional attributes without having to wrap the element in a bunch of tags.
Firstly make sure your API Key is valid and add this into your manifest <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
Here's my maps activity.. there might be some redundant information in it since it's from a larger project I created.
import android.content.Intent;
import android.content.IntentSender;
import android.location.Location;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
public class MapsActivity extends FragmentActivity implements
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
//These variable are initalized here as they need to be used in more than one methid
private double currentLatitude; //lat of user
private double currentLongitude; //long of user
private double latitudeVillageApartmets= 53.385952001750184;
private double longitudeVillageApartments= -6.599087119102478;
public static final String TAG = MapsActivity.class.getSimpleName();
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private GoogleMap mMap; // Might be null if Google Play services APK is not available.
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
setUpMapIfNeeded();
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
// Create the LocationRequest object
mLocationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)
.setInterval(10 * 1000) // 10 seconds, in milliseconds
.setFastestInterval(1 * 1000); // 1 second, in milliseconds
}
/*These methods all have to do with the map and wht happens if the activity is paused etc*/
//contains lat and lon of another marker
private void setUpMap() {
MarkerOptions marker = new MarkerOptions().position(new LatLng(latitudeVillageApartmets, longitudeVillageApartments)).title("1"); //create marker
mMap.addMarker(marker); // adding marker
}
//contains your lat and lon
private void handleNewLocation(Location location) {
Log.d(TAG, location.toString());
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();
LatLng latLng = new LatLng(currentLatitude, currentLongitude);
MarkerOptions options = new MarkerOptions()
.position(latLng)
.title("You are here");
mMap.addMarker(options);
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom((latLng), 11.0F));
}
@Override
protected void onResume() {
super.onResume();
setUpMapIfNeeded();
mGoogleApiClient.connect();
}
@Override
protected void onPause() {
super.onPause();
if (mGoogleApiClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient, this);
mGoogleApiClient.disconnect();
}
}
private void setUpMapIfNeeded() {
// Do a null check to confirm that we have not already instantiated the map.
if (mMap == null) {
// Try to obtain the map from the SupportMapFragment.
mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
// Check if we were successful in obtaining the map.
if (mMap != null) {
setUpMap();
}
}
}
@Override
public void onConnected(Bundle bundle) {
Location location = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if (location == null) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
else {
handleNewLocation(location);
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
if (connectionResult.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
connectionResult.startResolutionForResult(this, CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
/*
* If no resolution is available, display a dialog to the
* user with the error.
*/
Log.i(TAG, "Location services connection failed with code " + connectionResult.getErrorCode());
}
}
@Override
public void onLocationChanged(Location location) {
handleNewLocation(location);
}
}
There's a lot of methods here that are hard to understand but basically all update the map when it's paused etc. There are also connection timeouts etc. Sorry for just posting this, I tried to fix your code but I couldn't figure out what was wrong.
$.ajax({
url: 'http://url.of.my.server/submit',
dataType: "jsonp",
jsonp: 'callback',
jsonpCallback: 'jsonp_callback'
});
jsonp is the querystring parameter name that is defined to be acceptable by the server while the jsonpCallback is the javascript function name to be executed at the client.
When you use such url:
url: 'http://url.of.my.server/submit?callback=?'
the question mark ? at the end instructs jQuery to generate a random function while the predfined behavior of the autogenerated function will just invoke the callback -the sucess function in this case- passing the json data as a parameter.
$.ajax({
url: 'http://url.of.my.server/submit?callback=?',
success: function (data, status) {
mySurvey.closePopup();
},
error: function (xOptions, textStatus) {
mySurvey.closePopup();
}
});
The same goes here if you are using $.getJSON with ? placeholder it will generate a random function while the predfined behavior of the autogenerated function will just invoke the callback:
$.getJSON('http://url.of.my.server/submit?callback=?',function(data){
//process data here
});
That should be:
java -Dtest="true" -jar myApplication.jar
Then the following will return the value:
System.getProperty("test");
The value could be null
, though, so guard against an exception using a Boolean
:
boolean b = Boolean.parseBoolean( System.getProperty( "test" ) );
Note that the getBoolean
method delegates the system property value, simplifying the code to:
if( Boolean.getBoolean( "test" ) ) {
// ...
}
Should work.
Here's a working example:
Excerpt:
function loadIframe(iframeName, url) {
var $iframe = $('#' + iframeName);
if ($iframe.length) {
$iframe.attr('src',url);
return false;
}
return true;
}
Try this
frame$twohouses <- ifelse(frame$data>1, 2, 1)
frame
data twohouses
1 0 1
2 1 1
3 2 2
4 3 2
5 4 2
6 2 2
7 3 2
8 1 1
9 4 2
10 3 2
11 2 2
12 4 2
13 0 1
14 1 1
15 2 2
16 0 1
17 2 2
18 1 1
19 2 2
20 0 1
21 4 2
You don't really need the directive, can achieve it by using the ng-init and ng-checked. below demo link shows how to set the initial value for checkbox in angularjs.
<form>
<div>
Released<input type="checkbox" ng-model="Released" ng-bind-html="ACR.Released" ng-true-value="true" ng-false-value="false" ng-init='Released=true' ng-checked='true' />
Inactivated<input type="checkbox" ng-model="Inactivated" ng-bind-html="Inactivated" ng-true-value="true" ng-false-value="false" ng-init='Inactivated=false' ng-checked='false' />
Title Changed<input type="checkbox" ng-model="Title" ng-bind-html="Title" ng-true-value="true" ng-false-value="false" ng-init='Title=false' ng-checked='false' />
</div>
<br/>
<div>Released value is <b>{{Released}}</b></div>
<br/>
<div>Inactivated value is <b>{{Inactivated}}</b></div>
<br/>
<div>Title value is <b>{{Title}}</b></div>
<br/>
</form>
// Code goes here
var app = angular.module("myApp", []);
app.controller("myCtrl", function ($scope) {
});
# mysqladmin -u root -p status
Output:
Enter password:
Uptime: 4 Threads: 1 Questions: 62 Slow queries: 0 Opens: 51 Flush tables: 1 Open tables: 45 Queries per second avg: 15.500
It means MySQL serer is running
If server is not running then it will dump error as follows
# mysqladmin -u root -p status
Output :
mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists!
So Under Debian Linux you can type following command
# /etc/init.d/mysql status
The best way is to use fixtures.
Note: Keep in mind that fixtures do direct inserts and don't use your model so if you have callbacks that populate data you will need to find a workaround.
You could simply use ^[\w.]+
to match A-Z, a-z, 0-9 and _
This is not possible in Node.js, both child_process.spawn
and child_process.exec
were built from the ground up to be async.
For details see: https://github.com/ry/node/blob/master/lib/child_process.js
If you really want to have this blocking, then put everything that needs to happen afterwards in a callback, or build your own queue to handle this in a blocking fashion, I suppose you could use Async.js for this task.
Or, in case you have way too much time to spend, hack around in Node.js it self.
I also have the same error. I have updated the jackson library version and error has gone.
<!-- Jackson to convert Java object to Json -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.4</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.4</version>
</dependency>
</dependencies>
and also check your data classes that have you created getters and setters for all the properties.
This query should work for you:
SELECT *
FROM table
WHERE MONTH(columnName) = MONTH(CURRENT_DATE())
AND YEAR(columnName) = YEAR(CURRENT_DATE())
This should work:
data.groupby(lambda x: data['date'][x].year)
Using the function MONTH
which returns the month as a number, we can easily calculate the quarter.
select date, CEILING((MONTH(date) * 4) / 12) quarter from dual
Using JavaScript native Date functions you can get hours, minutes and seconds as you want. If you wish to format date and time in particular way you may want to implement a method extending JavaScript Date prototype.
Here is one already implemented: https://github.com/jacwright/date.format
You can use pure Python to do it:
import json
list = [1, 2, (3, 4)] # Note that the 3rd element is a tuple (3, 4)
json.dumps(list) # '[1, 2, [3, 4]]'
Step 1
My computer > properties > Advance system settings
Step 2
environment variables > click New button under user variables > Enter variable name as 'PATH'
Copy the location of java bin (e.g:C:\Program Files\Java\jdk1.8.0_121\bin)
and paste it in Variable value and click OK Now open the eclipse.
It seems clear that $(TESTS)
is empty so your 1.4.0 makefile is effectively
all:
clean:
rm -f gtest.a gtest_main.a *.o
Indeed, all has nothing to do. and clean does exactly what it says rm -f gtest.a ...
PS > $c = Compare-Object -ReferenceObject (1..5) -DifferenceObject (1..6) -PassThru
PS > $c
6
Here's a very simple way. Create two files:
protect-this.php
<?php
/* Your password */
$password = 'MYPASS';
if (empty($_COOKIE['password']) || $_COOKIE['password'] !== $password) {
// Password not set or incorrect. Send to login.php.
header('Location: login.php');
exit;
}
?>
login.php:
<?php
/* Your password */
$password = 'MYPASS';
/* Redirects here after login */
$redirect_after_login = 'index.php';
/* Will not ask password again for */
$remember_password = strtotime('+30 days'); // 30 days
if (isset($_POST['password']) && $_POST['password'] == $password) {
setcookie("password", $password, $remember_password);
header('Location: ' . $redirect_after_login);
exit;
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Password protected</title>
</head>
<body>
<div style="text-align:center;margin-top:50px;">
You must enter the password to view this content.
<form method="POST">
<input type="text" name="password">
</form>
</div>
</body>
</html>
Then require protect-this.php on the TOP of the files you want to protect:
// Password protect this content
require_once('protect-this.php');
Example result:
After filling the correct password, user is taken to index.php. The password is stored for 30 days.
PS: It's not focused to be secure, but to be pratical. A hacker can brute-force this. Use it to keep normal users away. Don't use it to protect sensitive information.
Try this
chdir /d D:\Work\Root
Enjoy rooting ;)
The same error is produced in MariaDB (10.1.36-MariaDB) by using the combination of parenthesis and the COLLATE statement. My SQL was different, the error was the same, I had:
SELECT *
FROM table1
WHERE (field = 'STRING') COLLATE utf8_bin;
Omitting the parenthesis was solving it for me.
SELECT *
FROM table1
WHERE field = 'STRING' COLLATE utf8_bin;
DataSet ds = new DataSet();
ds = obj.getXmlData();// get the multiple table in dataset.
Employee objEmp = new Employee ();// create the object of class Employee
List<Employee > empList = new List<Employee >();
int table = Convert.ToInt32(ds.Tables.Count);// count the number of table in dataset
for (int i = 1; i < table; i++)// set the table value in list one by one
{
foreach (DataRow dr in ds.Tables[i].Rows)
{
empList.Add(new Employee { Title1 = Convert.ToString(dr["Title"]), Hosting1 = Convert.ToString(dr["Hosting"]), Startdate1 = Convert.ToString(dr["Startdate"]), ExpDate1 = Convert.ToString(dr["ExpDate"]) });
}
}
dataGridView1.DataSource = empList;
Comment from answer: "make sure you use the same open connection for all the database calls inside the transaction. – Magnus"
Our users are stored in a separate db from the data I was working with in the transactions. Opening the db connection to get the user was causing this error for me. Moving the other db connection and user lookup outside of the transaction scope fixed the error.
Constructor overloading is like method overloading. Constructors can be overloaded to create objects in different ways.
The compiler differentiates constructors based on how many arguments are present in the constructor and other parameters like the order in which the arguments are passed.
For further details about java constructor, please visit https://tecloger.com/constructor-in-java/
there is a very useful online tool for this, just automatically transform the table into divs:
http://www.html-cleaner.com/features/replace-html-table-tags-with-divs/
And the video that explains it: https://www.youtube.com/watch?v=R1ArAee6wEQ
I'm using this on a daily basis. I hope it helps ;)
I used your own pivot as a nested query and came to this result:
SELECT
[sub].[chardate],
SUM(ISNULL([Australia], 0)) AS [Transactions Australia],
SUM(CASE WHEN [Australia] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Australia],
SUM(ISNULL([Austria], 0)) AS [Transactions Austria],
SUM(CASE WHEN [Austria] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Austria]
FROM
(
select *
from mytransactions
pivot (sum (totalcount) for country in ([Australia], [Austria])) as pvt
) AS [sub]
GROUP BY
[sub].[chardate],
[sub].[numericmonth]
ORDER BY
[sub].[numericmonth] ASC
The accepted answer is incorrect.
createNativeQuery
will always return a Query
:
public Query createNativeQuery(String sqlString, Class resultClass);
Calling getResultList
on a Query
returns List
:
List getResultList()
When assigning (or casting) to List<MyEntity>
, an unchecked assignment warning is produced.
Whereas, createQuery
will return a TypedQuery
:
public <T> TypedQuery<T> createQuery(String qlString, Class<T> resultClass);
Calling getResultList
on a TypedQuery
returns List<X>
.
List<X> getResultList();
This is properly typed and will not give a warning.
With createNativeQuery
, using ObjectMapper
seems to be the only way to get rid of the warning. Personally, I choose to suppress the warning, as I see this as a deficiency in the library and not something I should have to worry about.
I haven't figured out yet why this occurs, but I had classes that were in my App_Code
folder that were calling methods in each other, and were fine in doing this when I built a .NET 4.5.2 project, but then I had to revert it to 4.0 as the target server wasn't getting upgraded. That's when I found this problem (after fixing the langversion
in my web.config from 6 to 5... another story)....
One of my methods kept having an error like:
The type X.Y conflicts with the imported type X.Y in MyProject.DLL
All of my classes were already set to "Compile" in their properties, as suggested on the accepted answer here, and each had a common namespace that was the same, and each had using MyNamespace;
at the top of each class.
I found that if I just moved the offending classes that had to call methods in each other to another, standard folder named something other than "App_Code", they stopped having this conflict issue.
Note: If you create a standard folder called "AppCode", move your classes into it, delete the "App_Code" folder, then rename "AppCode" to "App_Code", your problems will return. It doesn't matter if you use the "New Folder" or "Add ASP .NET Folder" option to create "App_Code" - it seems to key in on the name.
Maybe this is just a .NET 4.0 (and possibly earlier) issue... I was just fine in 4.5.2 before having to revert!
The other examples here work fine for the old versions of ui-router (>=0.3.x) but all state events, such as $stateChangeStart
, are deprecated as of 1.0. The new ui-router 1.0 code uses the $transitions service. So you need to inject $transitions
into your component then use the $transitions.onBefore method as the code below demonstrates.
$transitions.onBefore({}, function(transition) { return confirm("Are you sure you want to leave this page?"); });
This is just a super simple example. The $transitions
service can accept more complicated responses such as promises. See the HookResult type for more information.
You could match the port numbers from wireshark up to port numbers from, say, netstat which will tell you the PID of a process listening on that port.
Meanwhile I have found the (for me) perfect solution: nexe, which creates a single executable from a Node.js application including all of its modules.
It's the next best thing to an ideal solution.
For everyone using .NET Core CLI on MinGW MSYS. After installing using
dotnet tool install --global dotnet-ef
add this line to to bashrc file c:\msys64\home\username\ .bashrc (location depend on your setup)
export PATH=$PATH:/c/Users/username/.dotnet/tools
By using the List
property.
ListBox1.AddItem "foo"
ListBox1.List(ListBox1.ListCount - 1, 1) = "bar"
An answer with an important explanation:
There are two parameters of "TestNG" who are supposed to determine the order of execution the tests:
@Test(dependsOnGroups= "someGroup")
And:
@Test(dependsOnMethods= "someMethod")
In both cases these functions will depend on the method or group,
But the differences:
In this case:
@Test(dependsOnGroups= "someGroup")
The method will be dependent on the whole group, so it is not necessarily that immediately after the execution of the dependent function, this method will also be executed, but it may occur later in the run and even after other tests run.
It is important to note that in case and there is more than one use within the same set of tests in this parameter, this is a safe recipe for problems, because the dependent methods of the entire set of tests will run first and only then the methods that depend on them.
However, in this case:
@Test(dependsOnMethods= "someMethod")
Even if this parameter is used more than once within the same set of tests, the dependent method will still be executed after the dependent method is executed immediately.
Hope it's clearly and help.
This isn't significantly different from other answers, but I wanted the array of integers in the end:
Integer[] indices = new Integer[n];
Arrays.setAll(indices, i -> i);
Collections.shuffle(Arrays.asList(indices));
return Arrays.stream(indices).mapToInt(Integer::intValue).toArray();
I made an eol
module for working with line endings in node or browsers. It has a split method like
var lines = eol.split(text)
Use
window.location.hash
to retrieve everything beyond and including the #
<select id="select">_x000D_
<optgroup label="select one option">_x000D_
<option>one</option> _x000D_
<option>two</option> _x000D_
<option>three</option> _x000D_
<option>four</option> _x000D_
<option>five</option>_x000D_
</optgroup>_x000D_
</select>
_x000D_
It all sounded like a lot of hard work to me, when optgroup gives you what you need - at least I think it does.
So, "findOneAndUpdate" requires an option to return original document. And, the option is:
{returnNewDocument: true}
Ref: https://docs.mongodb.com/manual/reference/method/db.collection.findOneAndUpdate/
{new: true}
Ref: http://mongoosejs.com/docs/api.html#query_Query-findOneAndUpdate
{returnOriginal: false}
Ref: http://mongodb.github.io/node-mongodb-native/3.0/api/Collection.html#findOneAndUpdate
I would like to describe a very good example of why negative padding
would be useful and awesome.
As all of us CSS developers know, vertically aligning a dynamically sizing div within another is a hassle, and for the most part, viewed as being impossible only using CSS. The incorporation of negative padding
could change this.
Please review the following HTML:
<div style="height:600px; width:100%;">
<div class="vertical-align" style="width:100%;height:auto;" >
This DIV's height will change based the width of the screen.
</div>
</div>
With the following CSS, we would be able to vertically center the content of the inner div
within the outer div
:
.vertical-align {
position: absolute;
top:50%;
padding-top:-50%;
overflow: visible;
}
Allow me to explain...
Absolutely positioning the inner div's top at 50% places the top edge of the inner div at the center of the outer div. Pretty simple. This is because percentage based positioning is relative to the inner dimensions of the parent element.
Percentage based padding, on the other hand, is based on the inner dimensions of the targeted element. So, by applying the property of padding-top: -50%;
we have shifted the content of the inner div upward by a distance of 50% of the height of the inner div's content, therefore centering the inner div's content within the outer div and still allowing the height dimension of the inner div to be dynamic!
If you ask me OP, this would be the best use-case, and I think it should be implemented just so I can do this hack. lol. Or, they should just fix the functionality of vertical-align
and give us a version of vertical-align
that works on all elements.
On the other hand, it:
At the cost of:
So really it depends on what you're doing, but I tend to prefer a DataReader until I need something that's only supported by a dataset. SqlDataReader is perfect for the common data access case of binding to a read-only grid.
For more info, see the official Microsoft documentation.
NomeN has answered correctly, but this answer wouldn't be of much use for beginners like me because we will have another problem to solve and we wouldn't know how to use RegEx in there. So I am adding a bit of explanation to this. The answer is
search:
(\w+\\.someMethod\\(\\))
replace:
((TypeName)$1)
Here:
In search:
First and last (
, )
depicts a group in regex
\w
depicts words (alphanumeric + underscore)
+
depicts one or more (ie one or more of alphanumeric + underscore)
.
is a special character which depicts any character (ie .+
means
one or more of any character). Because this is a special character
to depict a .
we should give an escape character with it, ie \.
someMethod
is given as it is to be searched.
The two parenthesis (
, )
are given along with escape character
because they are special character which are used to depict a group
(we will discuss about group in next point)
In replace:
It is given ((TypeName)$1)
, here $1
depicts the
group. That is all the characters that are enclosed within the first
and last parenthesis (
, )
in the search field
Also make sure you have checked the 'Regular expression' option in find an replace box
You can use find_all
in the following way to find every a
element that has an href
attribute, and print each one:
from BeautifulSoup import BeautifulSoup
html = '''<a href="some_url">next</a>
<span class="class"><a href="another_url">later</a></span>'''
soup = BeautifulSoup(html)
for a in soup.find_all('a', href=True):
print "Found the URL:", a['href']
The output would be:
Found the URL: some_url
Found the URL: another_url
Note that if you're using an older version of BeautifulSoup (before version 4) the name of this method is findAll
. In version 4, BeautifulSoup's method names were changed to be PEP 8 compliant, so you should use find_all
instead.
If you want all tags with an href
, you can omit the name
parameter:
href_tags = soup.find_all(href=True)
If at all possible, its always a good idea to create your XML using the XML classes rather than string manipulation - one of the benefits being that the classes will automatically escape characters as needed.
Using Context manager - [ most simple ]
import logging
class DisableLogger():
def __enter__(self):
logging.disable(logging.CRITICAL)
def __exit__(self, exit_type, exit_value, exit_traceback):
logging.disable(logging.NOTSET)
Example of use:
with DisableLogger():
do_something()
If you need a [more COMPLEX] fine-grained solution you can look at AdvancedLogger
AdvancedLogger can be used for fine grained logging temporary modifications
How it works:
Modifications will be enabled when context_manager/decorator starts working and be reverted after
Usage:
AdvancedLogger can be used
- as decorator `@AdvancedLogger()`
- as context manager `with AdvancedLogger():`
It has three main functions/features:
- disable loggers and it's handlers by using disable_logger= argument
- enable/change loggers and it's handlers by using enable_logger= argument
- disable specific handlers for all loggers, by using disable_handler= argument
All features they can be used together
Use cases for AdvancedLogger
# Disable specific logger handler, for example for stripe logger disable console
AdvancedLogger(disable_logger={"stripe": "console"})
AdvancedLogger(disable_logger={"stripe": ["console", "console2"]})
# Enable/Set loggers
# Set level for "stripe" logger to 50
AdvancedLogger(enable_logger={"stripe": 50})
AdvancedLogger(enable_logger={"stripe": {"level": 50, "propagate": True}})
# Adjust already registered handlers
AdvancedLogger(enable_logger={"stripe": {"handlers": "console"}
It is possible to use currentTarget
of the event
.
Example shows how to proceed with form submit. Likewise you could get function from onclick
attribute etc.
$('form').on('submit', function(event) {
event.preventDefault();
// code
event.currentTarget.submit();
});
You can also do this without using jQuery. Override XMLHttpRequest's send method and add the header there:
XMLHttpRequest.prototype.realSend = XMLHttpRequest.prototype.send;
var newSend = function(vData) {
this.setRequestHeader('x-my-custom-header', 'some value');
this.realSend(vData);
};
XMLHttpRequest.prototype.send = newSend;
A new convolve
recipe was merged into Python 3.10.
Given
import collections, operator
from itertools import chain, repeat
size = 3 + 1
kernel = [1/size] * size
Code
def convolve(signal, kernel):
# See: https://betterexplained.com/articles/intuitive-convolution/
# convolve(data, [0.25, 0.25, 0.25, 0.25]) --> Moving average (blur)
# convolve(data, [1, -1]) --> 1st finite difference (1st derivative)
# convolve(data, [1, -2, 1]) --> 2nd finite difference (2nd derivative)
kernel = list(reversed(kernel))
n = len(kernel)
window = collections.deque([0] * n, maxlen=n)
for x in chain(signal, repeat(0, n-1)):
window.append(x)
yield sum(map(operator.mul, kernel, window))
Demo
list(convolve(range(1, 6), kernel))
# [0.25, 0.75, 1.5, 2.5, 3.5, 3.0, 2.25, 1.25]
Details
A convolution is a general mathematical operation that can be applied to moving averages. This idea is, given some data, you slide a subset of data (window) as a "mask" or "kernel" across the data, carrying out a particular mathematical operation over each window. In the case of moving averages, the kernel is the average:
This recipe is a simple approach that is almost implemented as a Python module. In time, you can install more_itertools
, a popular third-party package, to directly use this implementation.
From go 1.13 onwards, if you had already configured your terminal with the git credentials and yet facing this issue, then you could try setting the GOPRIVATE
environment variable. Setting this environment variable solved this issue for me.
export GOPRIVATE=github.com/{organizationName/userName of the package}/*
set height: auto;
If you want to have minimum height to x then you can write
height:auto;
min-height:30px;
height:auto !important; /* for IE as it does not support min-height */
height:30px; /* for IE as it does not support min-height */
Your best bet is User-Agent header. You can get it like this in JSP or Servlet,
String userAgent = request.getHeader("User-Agent");
The header looks like this,
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.13) Gecko/2009073021 Firefox/3.0.13
It provides detailed information on browser. However, it's pretty much free format so it's very hard to decipher every single one. You just need to figure out which browsers you will support and write parser for each one. When you try to identify the version of browser, always check newer version first. For example, IE6 user-agent may contain IE5 for backward compatibility. If you check IE5 first, IE6 will be categorized as IE5 also.
You can get a full list of all user-agent values from this web site,
With User-Agent, you can tell the exact version of the browser. You can get a pretty good idea on OS but you may not be able to distinguish between different versions of the same OS, for example, Windows NT and 2000 may use same User-Agent.
There is nothing about resolution. However, you can get this with Javascript on an AJAX call.
I had a similar requirement in the app I am working on. And, I found a third-party library which does a slide-up, slide-down and slide-right in Android.
Refer to the link for more details: https://github.com/mancj/SlideUp-Android
To set up the library(copied from the ReadMe portion of its Github page on request):
Get SlideUp library
Add the JitPack repository to your build file. Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
maven { url "https://maven.google.com" } // or google() in AS 3.0
}
}
Add the dependency (in the Module gradle)
dependencies {
compile 'com.github.mancj:SlideUp-Android:2.2.1'
compile 'ru.ztrap:RxSlideUp2:2.x.x' //optional, for reactive listeners based on RxJava-2
compile 'ru.ztrap:RxSlideUp:1.x.x' //optional, for reactive listeners based on RxJava
}
To add the SlideUp into your project, follow these three simple steps:
Step 1:
create any type of layout
<LinearLayout
android:id="@+id/slideView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
Step 2:
Find that view in your activity/fragment
View slideView = findViewById(R.id.slideView);
Step 3:
Create a SlideUp object and pass in your view
slideUp = new SlideUpBuilder(slideView)
.withStartState(SlideUp.State.HIDDEN)
.withStartGravity(Gravity.BOTTOM)
//.withSlideFromOtherView(anotherView)
//.withGesturesEnabled()
//.withHideSoftInputWhenDisplayed()
//.withInterpolator()
//.withAutoSlideDuration()
//.withLoggingEnabled()
//.withTouchableAreaPx()
//.withTouchableAreaDp()
//.withListeners()
//.withSavedState()
.build();
You may also refer to the sample project on the link. I found it quite useful.
Your css will only work in IE browser. And the css suggessted by hayk.mart will olny work in webkit browsers. And by using different css hacks you can't style your browsers scroll bars with a same result.
So, it is better to use a jQuery/Javascript plugin to achieve a cross browser solution with a same result.
Solution:
By Using jScrollPane a jQuery plugin, you can achieve a cross browser solution
The C++ spec doesn't say exactly what algorithm you must use for the STL containers. It does, however, put certain constraints on their performance, which rules out the use of hash tables for map
and other associative containers. (They're most commonly implemented with red/black trees.) These constraints require better worst-case performance for these containers than hash tables can deliver.
Many people really do want hash tables, however, so hash-based STL associative containers have been a common extension for years. Consequently, they added unordered_map
and such to later versions of the C++ standard.
I understand that the answer was useful however for some reason it does not work for me however I have moved the situation with the following code and it is perfect
<?php
$codigoarticulo = $_POST['codigoarticulo'];
$nombrearticulo = $_POST['nombrearticulo'];
$seccion = $_POST['seccion'];
$precio = $_POST['precio'];
$fecha = $_POST['fecha'];
$importado = $_POST['importado'];
$paisdeorigen = $_POST['paisdeorigen'];
try {
$server = 'mysql: host=localhost; dbname=usuarios';
$user = 'root';
$pass = '';
$base = new PDO($server, $user, $pass);
$base->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$base->query("SET character_set_results = 'utf8',
character_set_client = 'utf8',
character_set_connection = 'utf8',
character_set_database = 'utf8',
character_set_server = 'utf8'");
$base->exec("SET character_set_results = 'utf8',
character_set_client = 'utf8',
character_set_connection = 'utf8',
character_set_database = 'utf8',
character_set_server = 'utf8'");
$sql = "
INSERT INTO productos
(CÓDIGOARTÍCULO, NOMBREARTÍCULO, SECCIÓN, PRECIO, FECHA, IMPORTADO, PAÍSDEORIGEN)
VALUES
(:c_art, :n_art, :sec, :pre, :fecha_art, :import, :p_orig)";
// SE ejecuta la consulta ben prepare
$result = $base->prepare($sql);
// se pasan por parametros aqui
$result->bindParam(':c_art', $codigoarticulo);
$result->bindParam(':n_art', $nombrearticulo);
$result->bindParam(':sec', $seccion);
$result->bindParam(':pre', $precio);
$result->bindParam(':fecha_art', $fecha);
$result->bindParam(':import', $importado);
$result->bindParam(':p_orig', $paisdeorigen);
$result->execute();
echo 'Articulo agregado';
} catch (Exception $e) {
echo 'Error';
echo $e->getMessage();
} finally {
}
?>
sorry i can't reply in comment. just FYI, these codes
if (navigator.app) {
navigator.app.exitApp();
}
else if (navigator.device) {
navigator.device.exitApp();
}
else {
window.close();
}
i confirm doesn't work. i use phonegap 6.0.5 and cordova 6.2.0
You can do it programmatically:
ddlColor.DataSource = from p in db.ProductTypes
where p.ProductID == pID
orderby p.Color
select new { p.Color };
ddlColor.DataTextField = "Color";
ddlColor.DataBind();
ddlColor.Items.Insert(0, new ListItem("Select", "NA"));
Or add it in markup as:
<asp:DropDownList .. AppendDataBoundItems="true">
<Items>
<asp:ListItem Text="Select" Value="" />
</Items>
</asp:DropDownList>
Using ed:
ed infile <<'EOE'
,s/^/prefix/
wq
EOE
This substitutes, for each line (,
), the beginning of the line (^
) with prefix
. wq
saves and exits.
If the replacement string contains a slash, we can use a different delimiter for s
instead:
ed infile <<'EOE'
,s#^#/opt/workdir/#
wq
EOE
I've quoted the here-doc delimiter EOE
("end of ed") to prevent parameter expansion. In this example, it would work unquoted as well, but it's good practice to prevent surprises if you ever have a $
in your ed script.
favicon.ico is 16x16
<link rel="shortcut icon" href="favicon.ico"/>
And I use these ones to be beautiful in mobile and tablet:
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="img/ico144.png">
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="img/ico114.png">
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="img/ico72.png">
<link rel="apple-touch-icon-precomposed" href="img/ico57.png">
It's important to use the name "favicon.ico" in the root because many browsers will try to find there first.
The differences are listed in the Javadoc for ListIterator
You can
I know there were lots of answers here, but the TL;DR version is this (If you're using Xamarin Studio):
Options
Android Build
Advanced
tabx86
/ armeabi-v7a
/ armeabi
)From the official doc:
Important: MATCH_PARENT is not recommended for widgets contained in a ConstraintLayout. Similar behavior can be defined by using MATCH_CONSTRAINT with the corresponding left/right or top/bottom constraints being set to "parent".
So if you want achieve MATCH_PARENT
effect, you can do this:
<TextView
android:id="@+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center"
android:text="TextView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
THIS IS NOT AN ANSWER TO THE ORIGINAL QUESTION, IT'S AN ANSWER TO @Teddy's QUESTION IN @Dudi's ANSWER'S COMMENTS
Here's a way to list id's in the active presentation to the immediate window (Ctrl + G) in VBA editor:
Sub ListAllShapes()
Dim curSlide As Slide
Dim curShape As Shape
For Each curSlide In ActivePresentation.Slides
Debug.Print curSlide.SlideID
For Each curShape In curSlide.Shapes
If curShape.TextFrame.HasText Then
Debug.Print curShape.Id
End If
Next curShape
Next curSlide
End Sub
To do a better search use the following code,
var myFav = "javascript";
var theList = "VB.NET, C#, PHP, Python, JavaScript, and Ruby";
// Check for matches with the plain vanilla indexOf() method:
alert( theList.indexOf( myFav ) );
// Now check for matches in lower-cased strings:
alert( theList.toLowerCase().indexOf( myFav.toLowerCase() ) );
In the first alert(), JavaScript returned "-1" - in other words, indexOf() did not find a match: this is simply because "JavaScript" is in lowercase in the first string, and properly capitalized in the second. To perform case-insensitive searches with indexOf(), you can make both strings either uppercase or lowercase. This means that, as in the second alert(), JavaScript will only check for the occurrence of the string you are looking for, capitalization ignored.
Reference, http://freewebdesigntutorials.com/javaScriptTutorials/jsStringObject/indexOfMethod.htm
System.AppDomain.CurrentDomain.BaseDirectory
This will give you running directory of your application. This even works for web applications. Afterwards you can reach your file.
Is contextmenu
an event?
I would use onmousedown
or onclick
then grab the MouseEvent
's button property to determine which button was pressed (0 = left, 1 = middle, 2 = right).
If a DLL is written in one of the .NET languages and if you only want to view what functions, there is a reference to this DLL in the project.
Then doubleclick the DLL in the references folder and then you will see what functions it has in the OBJECT EXPLORER window
If you would like to view the source code of that DLL file you can use a decompiler application such as .NET reflector. hope this helps you.
import random
import time
import sys
while True:
x=random.randint(1,100)
print('''Guess my number--it's from 1 to 100.''')
z=0
while True:
z=z+1
xx=int(str(sys.stdin.readline()))
if xx > x:
print("Too High!")
elif xx < x:
print("Too Low!")
elif xx==x:
print("You Win!! You used %s guesses!"%(z))
print()
break
else:
break
in this, I first string the number str()
, which converts it into an inoperable number. Then, I int()
integerize it, to make it an operable number. I just tested your problem on my IDLE GUI, and it said that 49.8 < 50.
For most of my select options, I start off with an option that simply says 'Please Select' or something similar and that option is always disabled. Then whenever you want to clear your select/option's you can do just do something like this.
Example
<select id="mySelectOption">
<option value="" selected disabled>Please select</option>
</select>
Answer
$('#mySelectOption').val('Please Select');
You can add and remove classes with jQuery like so:
$(".first").addClass("second")
// remove a class
$(".first").removeClass("second")
By the way you can set multiple classes in your markup right away separated with a whitespace
<div class="second first"></div>
If it's Windows, all you need to do is delete the root of that project within the file explorer. Just right click on the name of the app in Android Studio, and then "show in file explorer". Then just delete the project folder all in all.
The best way to set/get the value of a textarea is the .val()
, .value
method.
.text()
internally uses the .textContent
(or .innerText
for IE) method to get the contents of a <textarea>
. The following test cases illustrate how text()
and .val()
relate to each other:
var t = '<textarea>';
console.log($(t).text('test').val()); // Prints test
console.log($(t).val('too').text('test').val()); // Prints too
console.log($(t).val('too').text()); // Prints nothing
console.log($(t).text('test').val('too').val()); // Prints too
console.log($(t).text('test').val('too').text()); // Prints test
The value
property, used by .val()
always shows the current visible value, whereas text()
's return value can be wrong.
You can use Delorean to travel in space and time!
import datetime
import delorean
dt = datetime.datetime.utcnow()
delorean.Delorean(dt, timezone="UTC").epoch
React Native hasn't provided the gradient color yet. But still, you can do it with a nmp package called react-native-linear-gradient
or you can click here for more info
npm install react-native-linear-gradient --save
import LinearGradient from 'react-native-linear-gradient';
in your application file
<LinearGradient colors={['#4c669f', '#3b5998', '#192f6a']}>
<Text>
Your Text Here
</Text>
</LinearGradient>
$@ is same as $*, but each parameter is a quoted string, that is, the parameters are passed on intact, without interpretation or expansion. This means, among other things, that each parameter in the argument list is seen as a separate word.
Of course, "$@" should be quoted.
Simplified:
As mentioned here: Re: BUG #4243: Idle in transaction it is probably best to check your pg_locks table to see what is being locked and that might give you a better clue where the problem lies.
Just create a class or structure that has two members, one List(Of OneItem)
and the other Integer
and send in an instance of that class.
Edit: Sorry, missed that you had problems with one parameter as well. Just look at Thread Constructor (ParameterizedThreadStart) and that page includes a simple sample.
Use \t to add tab and \n for new line, here is a simple example below.
<string name="list_with_tab_tag">\tbanana\torange\tblueberry\tmango</string>
<string name="sentence_with_new_line_tag">This is the first sentence\nThis is the second scentence\nThis is the third sentence</string>
Setting CSS width to 1% or 100% of an element according to all specs I could find out is related to the parent. Although Blink Rendering Engine (Chrome) and Gecko (Firefox) at the moment of writing seems to handle that 1% or 100% (make a columns shrink or a column to fill available space) well, it is not guaranteed according to all CSS specifications I could find to render it properly.
One option is to replace table with CSS4 flex divs:
https://css-tricks.com/snippets/css/a-guide-to-flexbox/
That works in new browsers i.e. IE11+ see table at the bottom of the article.
<router-outlet [node]="..."></router-outlet>
is just invalid. The component added by the router is added as sibling to <router-outlet>
and does not replace it.
See also https://angular.io/guide/component-interaction#parent-and-children-communicate-via-a-service
@Injectable()
export class NodeService {
private node:Subject<Node> = new BehaviorSubject<Node>([]);
get node$(){
return this.node.asObservable().filter(node => !!node);
}
addNode(data:Node) {
this.node.next(data);
}
}
@Component({
selector : 'node-display',
providers: [NodeService],
template : `
<router-outlet></router-outlet>
`
})
export class NodeDisplayComponent implements OnInit {
constructor(private nodeService:NodeService) {}
node: Node;
ngOnInit(): void {
this.nodeService.getNode(path)
.subscribe(
node => {
this.nodeService.addNode(node);
},
err => {
console.log(err);
}
);
}
}
export class ChildDisplay implements OnInit{
constructor(nodeService:NodeService) {
nodeService.node$.subscribe(n => this.node = n);
}
}
Here is how to load bootstrap alert as soon as the document is ready. It is very easy just add
$(document).ready(function(){
$("#myModal").modal();
});
I made a demo on W3Schools.
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<title>Bootstrap Example</title>_x000D_
<meta charset="utf-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1">_x000D_
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>_x000D_
</head>_x000D_
<body>_x000D_
_x000D_
<div class="container">_x000D_
<h2>Here is how to load a bootstrap modal as soon as the document is ready </h2>_x000D_
<!-- Trigger the modal with a button -->_x000D_
_x000D_
_x000D_
<!-- Modal -->_x000D_
<div class="modal fade" id="myModal" role="dialog">_x000D_
<div class="modal-dialog">_x000D_
_x000D_
<!-- Modal content-->_x000D_
<div class="modal-content">_x000D_
<div class="modal-header">_x000D_
<button type="button" class="close" data-dismiss="modal">×</button>_x000D_
<h4 class="modal-title">Modal Header</h4>_x000D_
</div>_x000D_
<div class="modal-body">_x000D_
<p>Some text in the modal.</p>_x000D_
</div>_x000D_
<div class="modal-footer">_x000D_
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
</div>_x000D_
_x000D_
<script>_x000D_
$(document).ready(function(){_x000D_
$("#myModal").modal();_x000D_
});_x000D_
</script>_x000D_
_x000D_
</body>_x000D_
</html>
_x000D_
You can use guide=FALSE
in scale_..._...()
to suppress legend.
For your example you should use scale_colour_continuous()
because length
is continuous variable (not discrete).
(p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) +
scale_colour_continuous(guide = FALSE) +
geom_point()
)
Or using function guides()
you should set FALSE
for that element/aesthetic that you don't want to appear as legend, for example, fill
, shape
, colour
.
p0 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) +
geom_point()
p0+guides(colour=FALSE)
Both provided solutions work in new ggplot2
version 2.0.0 but movies
dataset is no longer present in this library. Instead you have to use new package ggplot2movies
to check those solutions.
library(ggplot2movies)
data(movies)
mov <- subset(movies, length != "")
Count and show keys in a dictionary (run in console):
o=[];count=0; for (i in topicNames) { ++count; o.push(count+": "+ i) } o.join("\n")
Sample output:
"1: Phase-out Left-hand
2: Define All Top Level Taxonomies But Processes
3: 987
4: 16:00
5: Identify suppliers"
Simple count function:
function size_dict(d){c=0; for (i in d) ++c; return c}
Building on the answers of prufrofro and Frank van Puffelen here, I put together this setup that doesn't prevent scraping, but can make it slightly harder to use your API key.
Warning: To get your data, even with this method, one can for example simply open the JS console in Chrome and type:
firebase.database().ref("/get/all/the/data").once("value", function (data) {
console.log(data.val());
});
Only the database security rules can protect your data.
Nevertheless, I restricted my production API key use to my domain name like this:
projectname.firebaseapp.com/*
)Now the app will only work on this specific domain name. So I created another API Key that will be private for localhost developement.
By default, as mentioned by Emmanuel Campos, Firebase only whitelists localhost
and your Firebase hosting domain.
In order to make sure I don't publish the wrong API key by mistake, I use one of the following methods to automatically use the more restricted one in production.
Setup for Create-React-App
In /env.development
:
REACT_APP_API_KEY=###dev-key###
In /env.production
:
REACT_APP_API_KEY=###public-key###
In /src/index.js
const firebaseConfig = {
apiKey: process.env.REACT_APP_API_KEY,
// ...
};
You can use NSTask
. Here's an example that would run '/usr/bin/grep foo bar.txt
'.
int pid = [[NSProcessInfo processInfo] processIdentifier];
NSPipe *pipe = [NSPipe pipe];
NSFileHandle *file = pipe.fileHandleForReading;
NSTask *task = [[NSTask alloc] init];
task.launchPath = @"/usr/bin/grep";
task.arguments = @[@"foo", @"bar.txt"];
task.standardOutput = pipe;
[task launch];
NSData *data = [file readDataToEndOfFile];
[file closeFile];
NSString *grepOutput = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSLog (@"grep returned:\n%@", grepOutput);
NSPipe
and NSFileHandle
are used to redirect the standard output of the task.
For more detailed information on interacting with the operating system from within your Objective-C application, you can see this document on Apple's Development Center: Interacting with the Operating System.
Edit: Included fix for NSLog problem
If you are using NSTask to run a command-line utility via bash, then you need to include this magic line to keep NSLog working:
//The magic line that keeps your log where it belongs
task.standardOutput = pipe;
An explanation is here: https://web.archive.org/web/20141121094204/https://cocoadev.com/HowToPipeCommandsWithNSTask
You could do this:
String strz[] = strs.toArray(String[strs.size()]);
String theFirstOne = strz[0];
The javadoc for Collection gives the following caveat wrt ordering of the elements of the array:
If this collection makes any guarantees as to what order its elements are returned by its iterator, this method must return the elements in the same order.
phpMyAdmin can handle CSV import. Here are the steps:
Prepare the CSV file to have the fields in the same order as the MySQL table fields.
Remove the header row from the CSV (if any), so that only the data is in the file.
Go to the phpMyAdmin interface.
Select the table in the left menu.
Click the import button at the top.
Browse to the CSV file.
Select the option "CSV using LOAD DATA".
Enter "," in the "fields terminated by".
Enter the column names in the same order as they are in the database table.
Click the go button and you are done.
This is a note that I prepared for my future use, and sharing here if someone else can benefit.
Assuming you're using jQuery..
var input = '19 51 2.108997\n20 47 2.1089';
var lines = input.split('\n');
var output = '';
$.each(lines, function(key, line) {
var parts = line.split(' ');
output += '<span>' + parts[0] + ' ' + parts[1] + '</span><span>' + parts[2] + '</span>\n';
});
$(output).appendTo('body');
If you have a bitmap image and you want to use it in drawable, like
Bitmap contact_pic; //a picture to show in drawable
drawable = new BitmapDrawable(contact_pic);
E.g : "abcd: efg: 1006746" "bhddy: nshhf36: 1006754" "hfquv: nd: 5894254"
-Step 1: String firstString = "abcd: efg: 1006746";
-Step 2: String lastSevenNumber = firstString.substring(firstString.lastIndexOf(':'), firstString.length()).trim();
Another approach if you are using Directory.EnumerateFiles
and want to read files in latest modified by first.
foreach (string file in Directory.EnumerateFiles(fileDirectory, fileType).OrderByDescending(f => new FileInfo(f).LastWriteTime))
}
After searching a solution for the same problem like you, I've found this small topic here. In advance I got a much smoother solution for this switch, case statement
switch($someString) #switch is caseINsensitive, so you don't need to lower
{
{ 'y' -or 'yes' } { "You entered Yes." }
default { "You entered No." }
}
Here's a solution that mixes the code by Jared Rummler and AndroidMechanic.
Note: fb://facewebmodal/f?href=
redirects to a weird facebook page that doesn't have the like and other important buttons, which is why I try fb://page/
. It works fine with the current Facebook version (126.0.0.21.77, June 1st 2017). The catch might be useless, I left it just in case.
public static String getFacebookPageURL(Context context)
{
final String FACEBOOK_PAGE_ID = "123456789";
final String FACEBOOK_URL = "MyFacebookPage";
if(appInstalledOrNot(context, "com.facebook.katana"))
{
try
{
return "fb://page/" + FACEBOOK_PAGE_ID;
// previous version, maybe relevant for old android APIs ?
// return "fb://facewebmodal/f?href=" + FACEBOOK_URL;
}
catch(Exception e) {}
}
else
{
return FACEBOOK_URL;
}
}
Here's the appInstalledOrNot
function which I took (and modified) from Aerrow's answer to this post
private static boolean appInstalledOrNot(Context context, String uri)
{
PackageManager pm = context.getPackageManager();
try
{
pm.getPackageInfo(uri, PackageManager.GET_ACTIVITIES);
return true;
}
catch(PackageManager.NameNotFoundException e)
{
}
return false;
}
How to get the Facebook ID of a page:
View Page Source
fb://page/?id=
Javascript solution:
I have successfully attached to existing browser session using this function
webdriver.WebDriver.attachToSession(executor, session_id);
Documentation can be found here.
If project is small and will remain small, I would recommend to structure by type (Method 2: ng-book2)
app
|- components
| |- hero
| |- hero-list
| |- villain
| |- ...
|- services
| |- hero.service.ts
| |- ...
|- utils
|- shared
If project will grow you should structure your folders by domain (Method 3: mgechev/angular2-seed)
app
|- heroes
| |- hero
| |- hero-list
| |- hero.service.ts
|- villains
| |- villain
| |- ...
|- utils
|- shared
Better to Follow official docs.
https://angular.io/guide/styleguide#application-structure-and-ngmodules
The argument to split is a regular expression. The period is a regular expression metacharacter that matches anything, thus every character in line
is considered to be a split character, and is thrown away, and all of the empty strings between them are thrown away (because they're empty strings). The result is that you have nothing left.
If you escape the period (by adding an escaped backslash before it), then you can match literal periods. (line.split("\\.")
)
I was having a problem getting my ASP.NET 5.0/MVC 6 app to serve static binary file types or browse virtual directories. It looks like this is now done in Configure() at startup. See http://docs.asp.net/en/latest/fundamentals/static-files.html for a quick primer.
Try adding a view users/show.json.erb
This should be rendered when you make a request for the JSON format, and you get the added benefit of it being rendered by erb too, so your file could look something like this
{
"first_name": "<%= @user.first_name.to_json %>",
"last_name": "<%= @user.last_name.to_json %>"
}
I think All Those answers specially first two (by some and jordão) answer the question clearly with conventional prototype base JS concept.
Now as you want the animal class constructor to behave according to the passed parameter to the construction, I think this is very much similar to basic behavior of Creational Patterns
for example Factory Pattern.
Here i made a little approach to make it work that way.
var Animal = function(type) {
this.type=type;
if(type=='dog')
{
return new Dog();
}
else if(type=="cat")
{
return new Cat();
}
};
Animal.prototype.whoAreYou=function()
{
console.log("I am a "+this.type);
}
Animal.prototype.say = function(){
console.log("Not implemented");
};
var Cat =function () {
Animal.call(this);
this.type="cat";
};
Cat.prototype=Object.create(Animal.prototype);
Cat.prototype.constructor = Cat;
Cat.prototype.say=function()
{
console.log("meow");
}
var Dog =function () {
Animal.call(this);
this.type="dog";
};
Dog.prototype=Object.create(Animal.prototype);
Dog.prototype.constructor = Dog;
Dog.prototype.say=function()
{
console.log("bark");
}
var animal=new Animal();
var dog = new Animal('dog');
var cat=new Animal('cat');
animal.whoAreYou(); //I am a undefined
animal.say(); //Not implemented
dog.whoAreYou(); //I am a dog
dog.say(); //bark
cat.whoAreYou(); //I am a cat
cat.say(); //meow
Compile the program with:
g++ -Wall -Wextra -Werror -c main.cpp -o main.o
^^^^^^^^^^^^^^^^^^^^ <- For listing all warnings when your code is compiled.
as cout
is present in the C++ standard library, which would need explicit linking with -lstdc++
when using gcc
; g++
links the standard library by default.
With gcc
, (g++
should be preferred over gcc
)
gcc main.cpp -lstdc++ -o main.o
The way to output >
character is to prepend it with ^
escape character:
echo ^>
will print simply
>
Here's how to do it using default ACLs, at least under Linux.
First, you might need to enable ACL support on your filesystem. If you are using ext4 then it is already enabled. Other filesystems (e.g., ext3) need to be mounted with the acl
option. In that case, add the option to your /etc/fstab
. For example, if the directory is located on your root filesystem:
/dev/mapper/qz-root / ext3 errors=remount-ro,acl 0 1
Then remount it:
mount -oremount /
Now, use the following command to set the default ACL:
setfacl -dm u::rwx,g::rwx,o::r /shared/directory
All new files in /shared/directory
should now get the desired permissions. Of course, it also depends on the application creating the file. For example, most files won't be executable by anyone from the start (depending on the mode argument to the open(2) or creat(2) call), just like when using umask. Some utilities like cp
, tar
, and rsync
will try to preserve the permissions of the source file(s) which will mask out your default ACL if the source file was not group-writable.
Hope this helps!
ALTER TABLE t_name modify c_name INT(10) AUTO_INCREMENT PRIMARY KEY;
The thing you will need to do here is use a linear gradient as background and animate the background position. In code:
Use a linear gradient (50% red, 50% blue) and tell the browser that background is 2 times larger than the element's width (width:200%, height:100%), then tell it to position the background left.
background: linear-gradient(to right, red 50%, blue 50%);
background-size: 200% 100%;
background-position:left bottom;
On hover, change the background position to right bottom
and with transition:all 2s ease;
, the position will change gradually (it's nicer with linear
tough)
background-position:right bottom;
As for the -vendor-prefix'es, see the comments to your question
extra If you wish to have a "transition" in the colour, you can make it 300% width and make the transition start at 34% (a bit more than 1/3) and end at 65% (a bit less than 2/3).
background: linear-gradient(to right, red 34%, blue 65%);
background-size: 300% 100%;
div {
font: 22px Arial;
display: inline-block;
padding: 1em 2em;
text-align: center;
color: white;
background: red; /* default color */
/* "to left" / "to right" - affects initial color */
background: linear-gradient(to left, salmon 50%, lightblue 50%) right;
background-size: 200%;
transition: .5s ease-out;
}
div:hover {
background-position: left;
}
_x000D_
<div>Hover me</div>
_x000D_
add "throws IOException" to your method like this:
public static void main(String args[]) throws IOException{
FileReader reader=new FileReader("db.properties");
Properties p=new Properties();
p.load(reader);
}
Using Bootstrap
Remove form-control-file Class from input field to avoid unwanted horizontal scroll bar
Try this!!
$('#upload').change(function() {_x000D_
var filename = $('#upload').val();_x000D_
if (filename.substring(3,11) == 'fakepath') {_x000D_
filename = filename.substring(12);_x000D_
} // For Remove fakepath_x000D_
$("label[for='file_name'] b").html(filename);_x000D_
$("label[for='file_default']").text('Selected File: ');_x000D_
if (filename == "") {_x000D_
$("label[for='file_default']").text('No File Choosen');_x000D_
}_x000D_
});
_x000D_
.custom_file {_x000D_
margin: auto;_x000D_
opacity: 0;_x000D_
position: absolute;_x000D_
z-index: -1;_x000D_
}
_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div class="form-group">_x000D_
<label for="upload" class="btn btn-sm btn-primary">Upload Image</label>_x000D_
<input type="file" class="text-center form-control-file custom_file" id="upload" name="user_image">_x000D_
<label for="file_default">No File Choosen </label>_x000D_
<label for="file_name"><b></b></label>_x000D_
</div>
_x000D_
The solution below is interesting because it can be applied across multiple elements concomitantly and does not trigger an error when the element no longer exists on the page. The secret is that it is called passing as a parameter a function in which you must return the elements you want to be affected by the blink. Then this function is called back with each blink. HTML file below:
<!doctype>
<html>
<head>
<style>
.blink {color: red}
</style>
</head>
<body>
<h1>Blink test</h1>
<p>
Brazil elected President <span class="blink">Bolsonaro</span> because he
was the only candidate who did not promise <span class="blink">free things</span>
to the population. Previous politicians created an image that would
bring many benefits, but in the end, the state has been getting more and
more <span class="blink">burdened</span>. Brazil voted for the
realistic idea that <span class="blink">there is no free lunch</span>.
</p>
</body>
<script>
var blink =
{
interval_in_miliseconds:
400,
on:
true,
function_wich_returns_the_elements:
[],
activate:
function(function_wich_returns_the_elements)
{
this.function_wich_returns_the_elements = function_wich_returns_the_elements;
setInterval(blink.change, blink.interval_in_miliseconds);
},
change:
function()
{
blink.on = !blink.on;
var i, elements = [];
for (i in blink.function_wich_returns_the_elements)
{
elements = elements.concat(blink.function_wich_returns_the_elements[i]());
}
for (i in elements)
{
if (elements[i])
{
elements[i].style.opacity = blink.on ? 1 : .2;
}
}
}
};
blink.activate
(
[
function()
{
var
i,
node_collection = document.getElementsByClassName('blink'),
elements = [];
for (i = 0; i < node_collection.length; i++)
{
elements.push(node_collection[i]);
}
return elements;
}
]
);
</script>
</html>
If you really want constants, not just variables looking like constants, the standard way to do it is to use immutable dictionaries. Unfortunately it's not built-in yet, so you have to use third party recipes (like this one or that one).
I solved this by doing the following:
<body class="container-fluid">
<div class="row">
<div class="span6" style="float: none; margin: 0 auto;">
....
</div>
</div>
</body>
Or if one want to use lambda
function in the apply
function:
data['Revenue']=data['Revenue'].apply(lambda x:float(x.replace("$","").replace(",", "").replace(" ", "")))
Use "$@"
to represent all the arguments:
for var in "$@"
do
echo "$var"
done
This will iterate over each argument and print it out on a separate line. $@ behaves like $* except that when quoted the arguments are broken up properly if there are spaces in them:
sh test.sh 1 2 '3 4'
1
2
3 4
Here is a simple way to do it:
Math.round(value * 100) / 100
You might want to go ahead and make a separate function to do it for you though:
function roundToTwo(value) {
return(Math.round(value * 100) / 100);
}
Then you would simply pass in the value.
You could enhance it to round to any arbitrary number of decimals by adding a second parameter.
function myRound(value, places) {
var multiplier = Math.pow(10, places);
return (Math.round(value * multiplier) / multiplier);
}
I had to run my commands in the one and same terminal, not seperately.
nohup sudo Xvfb :10 -ac
export DISPLAY=:10
java -jar vendor/se/selenium-server-standalone/bin/selenium-server-standalone.jar -Dwebdriver.chrome.bin="/usr/bin/google-chrome" -Dwebdriver.chrome.driver="vendor/bin/chromedriver"
Though it's probably suggested to get some heavier validation via JS or on the server, HTML5 does support this via the pattern attribute.
<input type= "text" name= "name" pattern= "[0-9]" title= "Title"/>
You need the public key in your gpg key ring. To import the public key into your public keyring, place the public key block in a text file with a .gpg extension, and then issue the following command:
gpg --import <your-file>.gpg
The entity that encrypted the file should provide you with such a block. For example, ftp://ftp.gnu.org/gnu/gnu-keyring.gpg has the block for gnu.org.
For an even more in-depth explanation see Verifying files with GPG, without a .sig or .asc file?
select Id, StartDate,
Case IsNull (StartDate , '01/01/1800')
When '01/01/1800' then
'Awaiting'
Else
'Approved'
END AS StartDateStatus
From MyTable
All your exercise conditionals are separate and the else is only tied to the last if statement. Use else if
to bind them all together in the way I believe you intend.
Properties can return anything they want to, but it's going to need to return the correct type.
private decimal _amount;
public string FormattedAmount
{
get { return string.Format("{0:C}", _amount); }
}
Question was asked... what if it was a nullable decimal.
private decimal? _amount;
public string FormattedAmount
{
get
{
return _amount == null ? "null" : string.Format("{0:C}", _amount.Value);
}
}
Here is a function that takes as its arguments a DataFrame and a list of columns and coerces all data in the columns to numbers.
# df is the DataFrame, and column_list is a list of columns as strings (e.g ["col1","col2","col3"])
# dependencies: pandas
def coerce_df_columns_to_numeric(df, column_list):
df[column_list] = df[column_list].apply(pd.to_numeric, errors='coerce')
So, for your example:
import pandas as pd
def coerce_df_columns_to_numeric(df, column_list):
df[column_list] = df[column_list].apply(pd.to_numeric, errors='coerce')
a = [['a', '1.2', '4.2'], ['b', '70', '0.03'], ['x', '5', '0']]
df = pd.DataFrame(a, columns=['col1','col2','col3'])
coerce_df_columns_to_numeric(df, ['col2','col3'])
For better performance in UITableView
or UICollectionView
use light weight library Smart Lazy Loading You can use this lazy loading approach if you want to load images from url Asynchronous
Smart 'Lazy Loading' in UICollectionView
or UITableView
using NSOperation
and NSOperationQueue
in iOS So in this project we can download the multiple images in any View (UICollectionView
or UITableView
) by optimising the performance of an app by using Operation
and OperationQueue
for concurrency. following are the key point of this project Smart Lazy Loading: Creating image download Service. Prioritise the downloading based on the visibility of cells.
ImageDownloadService class will create a singleton instance and have NSCache instance to cache the images that have been downloaded. We have inherited the Operation class to TOperation to mauled the functionality according to our need. I think the properties of the operation subclass are pretty clear in terms of functionality. We are monitoring operations changes of state by using KVO.
Just to add to the correct answer above, in Vue.JS v1.0 you can write
<a v-on:click="doSomething">
So in this example it would be
v-on:change="foo"
http://www.quirksmode.org/js/findpos.html Explains the best way to do it, all in all, you are on the right track you have to find the offsets and traverse up the tree of parents.
You could create a table somewhere on a calculation spreadsheet which performs this operation for each pair of cells, and use auto-fill to fill it up.
Aggregate the results from that table into a results cell.
The 200 so cells which reference the results could then reference the cell that holds the aggregation results. In the newest versions of excel you can name the result cell and reference it that way, for ease of reading.
Have you installed it?
On debian/ubuntu:
aptitude install python-numpy
On windows:
http://sourceforge.net/projects/numpy/files/NumPy/
On other systems:
http://sourceforge.net/projects/numpy/files/NumPy/
$ tar xfz numpy-n.m.tar.gz
$ cd numpy-n.m
$ python setup.py install
String message = URLEncoder.encode("my message", "UTF-8");
try {
// instantiate the URL object with the target URL of the resource to
// request
URL url = new URL("http://www.example.com/comment");
// instantiate the HttpURLConnection with the URL object - A new
// connection is opened every time by calling the openConnection
// method of the protocol handler for this URL.
// 1. This is the point where the connection is opened.
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
// set connection output to true
connection.setDoOutput(true);
// instead of a GET, we're going to send using method="POST"
connection.setRequestMethod("POST");
// instantiate OutputStreamWriter using the output stream, returned
// from getOutputStream, that writes to this connection.
// 2. This is the point where you'll know if the connection was
// successfully established. If an I/O error occurs while creating
// the output stream, you'll see an IOException.
OutputStreamWriter writer = new OutputStreamWriter(
connection.getOutputStream());
// write data to the connection. This is data that you are sending
// to the server
// 3. No. Sending the data is conducted here. We established the
// connection with getOutputStream
writer.write("message=" + message);
// Closes this output stream and releases any system resources
// associated with this stream. At this point, we've sent all the
// data. Only the outputStream is closed at this point, not the
// actual connection
writer.close();
// if there is a response code AND that response code is 200 OK, do
// stuff in the first if block
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
// OK
// otherwise, if any other status code is returned, or no status
// code is returned, do stuff in the else block
} else {
// Server returned HTTP error code.
}
} catch (MalformedURLException e) {
// ...
} catch (IOException e) {
// ...
}
The first 3 answers to your questions are listed as inline comments, beside each method, in the example HTTP POST above.
From getOutputStream:
Returns an output stream that writes to this connection.
Basically, I think you have a good understanding of how this works, so let me just reiterate in layman's terms. getOutputStream
basically opens a connection stream, with the intention of writing data to the server. In the above code example "message" could be a comment that we're sending to the server that represents a comment left on a post. When you see getOutputStream
, you're opening the connection stream for writing, but you don't actually write any data until you call writer.write("message=" + message);
.
From getInputStream():
Returns an input stream that reads from this open connection. A SocketTimeoutException can be thrown when reading from the returned input stream if the read timeout expires before data is available for read.
getInputStream
does the opposite. Like getOutputStream
, it also opens a connection stream, but the intent is to read data from the server, not write to it. If the connection or stream-opening fails, you'll see a SocketTimeoutException
.
How about the getInputStream? Since I'm only able to get the response at getInputStream, then does it mean that I didn't send any request at getOutputStream yet but simply establishes a connection?
Keep in mind that sending a request and sending data are two different operations. When you invoke getOutputStream or getInputStream url.openConnection()
, you send a request to the server to establish a connection. There is a handshake that occurs where the server sends back an acknowledgement to you that the connection is established. It is then at that point in time that you're prepared to send or receive data. Thus, you do not need to call getOutputStream to establish a connection open a stream, unless your purpose for making the request is to send data.
In layman's terms, making a getInputStream
request is the equivalent of making a phone call to your friend's house to say "Hey, is it okay if I come over and borrow that pair of vice grips?" and your friend establishes the handshake by saying, "Sure! Come and get it". Then, at that point, the connection is made, you walk to your friend's house, knock on the door, request the vice grips, and walk back to your house.
Using a similar example for getOutputStream
would involve calling your friend and saying "Hey, I have that money I owe you, can I send it to you"? Your friend, needing money and sick inside that you kept it for so long, says "Sure, come on over you cheap bastard". So you walk to your friend's house and "POST" the money to him. He then kicks you out and you walk back to your house.
Now, continuing with the layman's example, let's look at some Exceptions. If you called your friend and he wasn't home, that could be a 500 error. If you called and got a disconnected number message because your friend is tired of you borrowing money all the time, that's a 404 page not found. If your phone is dead because you didn't pay the bill, that could be an IOException. (NOTE: This section may not be 100% correct. It's intended to give you a general idea of what's happening in layman's terms.)
Question #5:
Yes, you are correct that openConnection simply creates a new connection object but does not establish it. The connection is established when you call either getInputStream or getOutputStream.
openConnection
creates a new connection object. From the URL.openConnection javadocs:
A new connection is opened every time by calling the openConnection method of the protocol handler for this URL.
The connection is established when you call openConnection, and the InputStream, OutputStream, or both, are called when you instantiate them.
Question #6:
To measure the overhead, I generally wrap some very simple timing code around the entire connection block, like so:
long start = System.currentTimeMillis();
log.info("Time so far = " + new Long(System.currentTimeMillis() - start) );
// run the above example code here
log.info("Total time to send/receive data = " + new Long(System.currentTimeMillis() - start) );
I'm sure there are more advanced methods for measuring the request time and overhead, but this generally is sufficient for my needs.
For information on closing connections, which you didn't ask about, see In Java when does a URL connection close?.
http://sfml-dev.org/documentation/2.0/classsf_1_1Music.php
SFML does not have mp3 support as another has suggested. What I always do is use Audacity and make all my music into ogg, and leave all my sound effects as wav.
Loading and playing a wav is simple (crude example):
http://www.sfml-dev.org/tutorials/2.0/audio-sounds.php
#include <SFML/Audio.hpp>
...
sf::SoundBuffer buffer;
if (!buffer.loadFromFile("sound.wav")){
return -1;
}
sf::Sound sound;
sound.setBuffer(buffer);
sound.play();
Streaming an ogg music file is also simple:
#include <SFML/Audio.hpp>
...
sf::Music music;
if (!music.openFromFile("music.ogg"))
return -1; // error
music.play();
VCRUNTIME140.dll error
This error means you don't have required Visual C++ packages installed in your computer.
If you have installed wampserver then firstly uninstall wampserver.
Download the VC packages
Download all these VC packages and install all of them. You should install both 64 bit and 32 bit version.
-- VC9 Packages (Visual C++ 2008 SP1)--
http://www.microsoft.com/en-us/download/details.aspx?id=5582
http://www.microsoft.com/en-us/download/details.aspx?id=2092
-- VC10 Packages (Visual C++ 2010 SP1)--
http://www.microsoft.com/en-us/download/details.aspx?id=8328
http://www.microsoft.com/en-us/download/details.aspx?id=13523
-- VC11 Packages (Visual C++ 2012 Update 4)--
The two files VSU4\vcredist_x86.exe and VSU4\vcredist_x64.exe to be download are on the same page
http://www.microsoft.com/en-us/download/details.aspx?id=30679
-- VC13 Packages] (Visual C++ 2013)--
The two files VSU4\vcredist_x86.exe and VSU4\vcredist_x64.exe to be download are on the same page
https://www.microsoft.com/en-us/download/details.aspx?id=40784
-- VC14 Packages (Visual C++ 2015)--
The two files vcredist_x86.exe and vcredist_x64.exe to be download are on the same page
http://www.microsoft.com/en-us/download/details.aspx?id=48145
install packages with admin priviliges
Right click->Run as Administrator
install wampserver again
After you installed both 64bits and 32 bits version of VC packages then install wampserver again.
You can view this dump from the UNIX console.
The path for the heap dump will be provided as a variable right after where you have placed the mentioned variable.
E.g.:
-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=${DOMAIN_HOME}/logs/mps"
You can view the dump from the console on the mentioned path.
I encountered the same problem when I built an application on a Windows 7 box that had previously been maintained on an XP machine.
The program ran fine when built for Debug, but failed with this error when built for Release. I found the answer on the project's Properties page. Go to the "Build" tab and try changing the Platform Target from "Any CPU" to "x86".
A simple solution for a delayed auto submit:
<body onload="setTimeout(function() { document.frm1.submit() }, 5000)">
<form action="https://www.google.com" name="frm1">
<input type="hidden" name="q" value="Hello world" />
</form>
</body>
I had this issue because a method I was trying to implement required a std::unique_ptr<Queue>(myQueue)
as a parameter, but the Queue
class is abstract. I solved that by using a QueuePtr(myQueue)
constructor like so:
using QueuePtr = std::unique_ptr<Queue>;
and used that in the parameter list instead. This fixes it because the initializer tries to create a copy of Queue
when you make a std::unique_ptr
of its type, which can't happen.
Just use the Invoke-Item
cmdlet. For example, if you want to open a explorer window on the current directory you can do:
Invoke-Item .
First you have to deactivate your environment before removing it. You can remove conda environment by using the following command
Suppose your environment name is "sample_env" , you can remove this environment by using
source deactivate
conda remove -n sample_env --all
'--all' will be used to remove all the dependencies
If using the 'typetable reference' approach (from @Carl G) and you're using multiple type tables you might want to consider this way :
export default class AppComponent {
// Store a reference to the enums (must be public for --AOT to work)
public TT = {
CellType: CellType,
CatType: CatType,
DogType: DogType
};
...
dog = DogType.GoldenRetriever;
Then access in your html file with
{{ TT.DogType[dog] }} => "GoldenRetriever"
I favor this approach as it makes it clear you're referring to a typetable, and also avoids unnecessary pollution of your component file.
You can also put a global TT
somewhere and add enums to it as needed (if you want this you may as well make a service as shown by @VincentSels answer). If you have many many typetables this may become cumbersome.
Also you always rename them in your declaration to get a shorter name.
By the answer of rudivonstaden
txtBlock.Text = await response.Content.ReadAsStringAsync();
but if you don't want to make the method async you can use
txtBlock.Text = response.Content.ReadAsStringAsync();
txtBlock.Text.Wait();
Wait() it's important, bec?use we are doing async operations and we must wait for the task to complete before going ahead.
Here's the simple way to do It !
string fullPath =openFileDialog1.FileName;
string directory;
directory = fullPath.Substring(0, fullPath.LastIndexOf('\\'));
You need to escape the backslash \
:
println yourString.replace("\\", "/")
If you don't have media, doing a dir /s vs_ultimate.exe
from the root prompt will find it. Mine was in C:\ProgramData\Package Cache\{[guid]}
. Once I navigated there and ran vs_ultimate.exe
with the /uninstall
and /force
flags, the uninstaller ran
I opened the program "Command Prompt"
with as administrator and search run "dir /s vs_ultimate.exe"
in ProgramData folder and find path to vs_ultimate.exe
file.
Then I changed my working directory to that path and ran vs_ultimate.exe /uninstall /force
.
Finally its done.
I came up with such solution, works great for me:
msbuild /t:ResolveReferences;_WPPCopyWebApplication /p:BuildingProject=true;OutDir=C:\Temp\build\ Test.csproj
The secret sauce is _WPPCopyWebApplication target.
Just to provide another example, Mercurial uses copy-on-write to make cloning local repositories a really "cheap" operation.
The principle is the same as the other examples, except that you're talking about physical files instead of objects in memory. Initially, a clone is not a duplicate but a hard link to the original. As you change files in the clone, copies are written to represent the new version.
A nice Java 7+ answer from Benoit Blanchon can be found here:
With Java 7, you can use
Files.createDirectories()
.For instance:
Files.createDirectories(Paths.get("/path/to/directory"));
If yours is a gradle project replace:
xmlns:android="http://schemas.android.com/apk/res/android"
with:
xmlns:app="http://schemas.android.com/apk/res-auto"
The main problem with this erorr Error Code: 1451. Cannot delete or update a parent row: a foreign key constraint fails
is that it doesn't let you know which table contains the FK failure, so it is difficult to solve the conflict.
If you use MySQL or similar, I found out that you can create an ER diagram for your database, then you can review and safely remove any conflicts triggering the error.
connection
database
& tables
that need examineI know that its a bit of a dead post but I just noticed that this works. It removed both clean-up and cleanup from my output.
> grep -v -e 'clean\-\?up'
> grep --version grep (GNU grep) 2.20
Too late to answer but if your input is in form of ASCII bytes, then you could try this solution:
function convertArrToString(rArr){
//Step 1: Convert each element to character
let tmpArr = new Array();
rArr.forEach(function(element,index){
tmpArr.push(String.fromCharCode(element));
});
//Step 2: Return the string by joining the elements
return(tmpArr.join(""));
}
function convertArrToHexNumber(rArr){
return(parseInt(convertArrToString(rArr),16));
}
Try
1. List all packages
android list sdk --all
2. Install packages using following command
android update sdk -u -a -t package1, package2, package3 //comma seperated packages obtained using list command
please refer to this post for the changes in ruby1.9 Getting an ASCII character code in Ruby using `?` (question mark) fails
If you want a query to use currently selected database. simply copy paste this query. (No modification required)
SELECT table_name ,
round(((data_length + index_length) / 1024 / 1024), 2) as SIZE_MB
FROM information_schema.TABLES
WHERE table_schema = DATABASE() ORDER BY SIZE_MB DESC;
As described here http://developer.android.com/reference/java/util/regex/Pattern.html
Patterns are compiled regular expressions. In many cases, convenience methods such as
String.matches
,String.replaceAll
andString.split
will be preferable, but if you need to do a lot of work with the same regular expression, it may be more efficient to compile it once and reuse it. The Pattern class and its companion, Matcher, also offer more functionality than the small amount exposed by String.
public class RegularExpressionTest {
public static void main(String[] args) {
System.out.println("String is = "+getOnlyStrings("!&(*^*(^(+one(&(^()(*)(*&^%$#@!#$%^&*()("));
System.out.println("Number is = "+getOnlyDigits("&(*^*(^(+91-&*9hi-639-0097(&(^("));
}
public static String getOnlyDigits(String s) {
Pattern pattern = Pattern.compile("[^0-9]");
Matcher matcher = pattern.matcher(s);
String number = matcher.replaceAll("");
return number;
}
public static String getOnlyStrings(String s) {
Pattern pattern = Pattern.compile("[^a-z A-Z]");
Matcher matcher = pattern.matcher(s);
String number = matcher.replaceAll("");
return number;
}
}
Result
String is = one
Number is = 9196390097
i solve that problem changing in the file settings.py with 'ENGINE': 'django.db.backends.mysql', don´t use 'ENGINE': 'mysql.connector.django',
In webforms you could also render almost whole html by hand, except few tags like viewstate, eventvalidation and similar, which can be removed with PageAdapters. Nobody force you to use GridView or some other server side control that has bad html rendering output.
I would say that biggest advantage of MVC is SPEED!
Next is forced separation of concern. But it doesn't forbid you to put whole BL and DAL logic inside Controller/Action! It's just separation of view, which can be done also in webforms (MVP pattern for example). A lot of things that people mentions for mvc can be done in webforms, but with some additional effort.
Main difference is that request comes to controller, not view, and those two layers are separated, not connected via partial class like in webforms (aspx + code behind)
An expansion and useful addition to egmackenzie's "arp -a" solution for Windows -
Windows Example searching for my iPhone on the WiFi network
(pre: iPhone WiFi disabled)
See below for example:
Here is a nice writeup on the use of 'arp -d' here if interested -
If you want to run a script to a database:
mysql -u user -p data_base_name_here < db.sql
fetch
will download any changes from the remote* branch, updating your repository data, but leaving your local* branch unchanged.
pull
will perform a fetch
and additionally merge
the changes into your local branch.
What's the difference? pull
updates you local branch with changes from the pulled branch. A fetch
does not advance your local branch.
Given the following history:
C---D---E local / A---B---F---G remote
merge
joins two development histories together. It does this by replaying the changes that occurred on your local branch after it diverged on top of the remote branch, and record the result in a new commit. This operation preserves the ancestry of each commit.
The effect of a merge
will be:
C---D---E local / \ A---B---F---G---H remote
rebase
will take commits that exist in your local branch and re-apply them on top of the remote branch. This operation re-writes the ancestors of your local commits.
The effect of a rebase
will be:
C'--D'--E' local / A---B---F---G remote
What's the difference? A merge
does not change the ancestry of commits. A rebase
rewrites the ancestry of your local commits.
*
This explanation assumes that the current branch is a local branch, and that the branch specified as the argument to fetch
, pull
, merge
, or rebase
is a remote branch. This is the usual case. pull
, for example, will download any changes from the specified branch, update your repository and merge
the changes into the current branch.
Both kinds of enclosed characters are strings. One type of quote is conveniently used to enclose the other type of quote. "'"
and '"'
. The biggest difference between the types of quotes is that enclosed identifier references are substituted for inside double quotes, but not inside single quotes.
You want to use single quotes:
if(c=='\0')
Double quotes (") are for strings, which are sequences of characters. Single quotes (') are for individual characters.
However, the end-of-line is represented by the newline character, which is '\n'.
Note that in both cases, the backslash is not part of the character, but just a way you represent special characters. Using backslashes you can represent various unprintable characters and also characters which would otherwise confuse the compiler.
Here is MySQL version which prints only one entry where there are duplicates MAX(datetime) in a group.
You could test here http://www.sqlfiddle.com/#!2/0a4ae/1
mysql> SELECT * from topten;
+------+------+---------------------+--------+----------+
| id | home | datetime | player | resource |
+------+------+---------------------+--------+----------+
| 1 | 10 | 2009-04-03 00:00:00 | john | 399 |
| 2 | 11 | 2009-04-03 00:00:00 | juliet | 244 |
| 3 | 10 | 2009-03-03 00:00:00 | john | 300 |
| 4 | 11 | 2009-03-03 00:00:00 | juliet | 200 |
| 5 | 12 | 2009-04-03 00:00:00 | borat | 555 |
| 6 | 12 | 2009-03-03 00:00:00 | borat | 500 |
| 7 | 13 | 2008-12-24 00:00:00 | borat | 600 |
| 8 | 13 | 2009-01-01 00:00:00 | borat | 700 |
| 9 | 10 | 2009-04-03 00:00:00 | borat | 700 |
| 10 | 11 | 2009-04-03 00:00:00 | borat | 700 |
| 12 | 12 | 2009-04-03 00:00:00 | borat | 700 |
+------+------+---------------------+--------+----------+
SELECT *
FROM (
SELECT ord.*,
IF (@prev_home = ord.home, 0, 1) AS is_first_appear,
@prev_home := ord.home
FROM (
SELECT t1.id, t1.home, t1.player, t1.resource
FROM topten t1
INNER JOIN (
SELECT home, MAX(datetime) AS mx_dt
FROM topten
GROUP BY home
) x ON t1.home = x.home AND t1.datetime = x.mx_dt
ORDER BY home
) ord, (SELECT @prev_home := 0, @seq := 0) init
) y
WHERE is_first_appear = 1;
+------+------+--------+----------+-----------------+------------------------+
| id | home | player | resource | is_first_appear | @prev_home := ord.home |
+------+------+--------+----------+-----------------+------------------------+
| 9 | 10 | borat | 700 | 1 | 10 |
| 10 | 11 | borat | 700 | 1 | 11 |
| 12 | 12 | borat | 700 | 1 | 12 |
| 8 | 13 | borat | 700 | 1 | 13 |
+------+------+--------+----------+-----------------+------------------------+
4 rows in set (0.00 sec)
SELECT tt.*
FROM topten tt
INNER JOIN
(
SELECT home, MAX(datetime) AS MaxDateTime
FROM topten
GROUP BY home
) groupedtt ON tt.home = groupedtt.home AND tt.datetime = groupedtt.MaxDateTime
+------+------+---------------------+--------+----------+
| id | home | datetime | player | resource |
+------+------+---------------------+--------+----------+
| 1 | 10 | 2009-04-03 00:00:00 | john | 399 |
| 2 | 11 | 2009-04-03 00:00:00 | juliet | 244 |
| 5 | 12 | 2009-04-03 00:00:00 | borat | 555 |
| 8 | 13 | 2009-01-01 00:00:00 | borat | 700 |
| 9 | 10 | 2009-04-03 00:00:00 | borat | 700 |
| 10 | 11 | 2009-04-03 00:00:00 | borat | 700 |
| 12 | 12 | 2009-04-03 00:00:00 | borat | 700 |
+------+------+---------------------+--------+----------+
7 rows in set (0.00 sec)
I would use this
html, body{_x000D_
background: #E73;_x000D_
min-height: 100%;_x000D_
min-height: 100vh;_x000D_
overflow: auto; // <- this is needed when you resize the screen_x000D_
}
_x000D_
<html>_x000D_
<body>_x000D_
</body>_x000D_
</html>
_x000D_
The browser will use min-height: 100vh
and if somehow the browser is a little older the min-height: 100%
will be the fallback.
The overflow: auto
is necessary if you want the body and html to expand their height when you resize the screen (to a mobile size for example)
Try this with Swift 3
button.addTarget(self, action:#selector(ClassName.handleRegister(sender:)), for: .touchUpInside)
Good luck!
EXEC proc_name @paramValue1 = 0, @paramValue2 = 'some text';
GO
If the Stored Procedure objective is to perform an INSERT
on a table that has an Identity field declared, then the field, in this scenario @paramValue1
, should be declared and just pass the value 0, because it will be auto-increment.
Use ampersand to specify the parent selector.
SCSS syntax:
p {
margin: 2em auto;
> a {
color: red;
}
&:before {
content: "";
}
&:after {
content: "* * *";
}
}
That's a good question. I'd love to say “yes”. I can't.
JavaScript is usually considered to have a single thread of execution visible to scripts(*), so that when your inline script, event listener or timeout is entered, you remain completely in control until you return from the end of your block or function.
(*: ignoring the question of whether browsers really implement their JS engines using one OS-thread, or whether other limited threads-of-execution are introduced by WebWorkers.)
However, in reality this isn't quite true, in sneaky nasty ways.
The most common case is immediate events. Browsers will fire these right away when your code does something to cause them:
var l= document.getElementById('log');_x000D_
var i= document.getElementById('inp');_x000D_
i.onblur= function() {_x000D_
l.value+= 'blur\n';_x000D_
};_x000D_
setTimeout(function() {_x000D_
l.value+= 'log in\n';_x000D_
l.focus();_x000D_
l.value+= 'log out\n';_x000D_
}, 100);_x000D_
i.focus();
_x000D_
<textarea id="log" rows="20" cols="40"></textarea>_x000D_
<input id="inp">
_x000D_
Results in log in, blur, log out
on all except IE. These events don't just fire because you called focus()
directly, they could happen because you called alert()
, or opened a pop-up window, or anything else that moves the focus.
This can also result in other events. For example add an i.onchange
listener and type something in the input before the focus()
call unfocuses it, and the log order is log in, change, blur, log out
, except in Opera where it's log in, blur, log out, change
and IE where it's (even less explicably) log in, change, log out, blur
.
Similarly calling click()
on an element that provides it calls the onclick
handler immediately in all browsers (at least this is consistent!).
(I'm using the direct on...
event handler properties here, but the same happens with addEventListener
and attachEvent
.)
There's also a bunch of circumstances in which events can fire whilst your code is threaded in, despite you having done nothing to provoke it. An example:
var l= document.getElementById('log');_x000D_
document.getElementById('act').onclick= function() {_x000D_
l.value+= 'alert in\n';_x000D_
alert('alert!');_x000D_
l.value+= 'alert out\n';_x000D_
};_x000D_
window.onresize= function() {_x000D_
l.value+= 'resize\n';_x000D_
};
_x000D_
<textarea id="log" rows="20" cols="40"></textarea>_x000D_
<button id="act">alert</button>
_x000D_
Hit alert
and you'll get a modal dialogue box. No more script executes until you dismiss that dialogue, yes? Nope. Resize the main window and you will get alert in, resize, alert out
in the textarea.
You might think it's impossible to resize a window whilst a modal dialogue box is up, but not so: in Linux, you can resize the window as much as you like; on Windows it's not so easy, but you can do it by changing the screen resolution from a larger to a smaller one where the window doesn't fit, causing it to get resized.
You might think, well, it's only resize
(and probably a few more like scroll
) that can fire when the user doesn't have active interaction with the browser because script is threaded. And for single windows you might be right. But that all goes to pot as soon as you're doing cross-window scripting. For all browsers other than Safari, which blocks all windows/tabs/frames when any one of them is busy, you can interact with a document from the code of another document, running in a separate thread of execution and causing any related event handlers to fire.
Places where events that you can cause to be generated can be raised whilst script is still threaded:
when the modal popups (alert
, confirm
, prompt
) are open, in all browsers but Opera;
during showModalDialog
on browsers that support it;
the “A script on this page may be busy...” dialogue box, even if you choose to let the script continue to run, allows events like resize and blur to fire and be handled even whilst the script is in the middle of a busy-loop, except in Opera.
a while ago for me, in IE with the Sun Java Plugin, calling any method on an applet could allow events to fire and script to be re-entered. This was always a timing-sensitive bug, and it's possible Sun have fixed it since (I certainly hope so).
probably more. It's been a while since I tested this and browsers have gained complexity since.
In summary, JavaScript appears to most users, most of the time, to have a strict event-driven single thread of execution. In reality, it has no such thing. It is not clear how much of this is simply a bug and how much deliberate design, but if you're writing complex applications, especially cross-window/frame-scripting ones, there is every chance it could bite you — and in intermittent, hard-to-debug ways.
If the worst comes to the worst, you can solve concurrency problems by indirecting all event responses. When an event comes in, drop it in a queue and deal with the queue in order later, in a setInterval
function. If you are writing a framework that you intend to be used by complex applications, doing this could be a good move. postMessage
will also hopefully soothe the pain of cross-document scripting in the future.
You're nesting mocking inside of mocking. You're calling getSomeList()
, which does some mocking, before you've finished the mocking for MyMainModel
. Mockito doesn't like it when you do this.
Replace
@Test
public myTest(){
MyMainModel mainModel = Mockito.mock(MyMainModel.class);
Mockito.when(mainModel.getList()).thenReturn(getSomeList()); --> Line 355
}
with
@Test
public myTest(){
MyMainModel mainModel = Mockito.mock(MyMainModel.class);
List<SomeModel> someModelList = getSomeList();
Mockito.when(mainModel.getList()).thenReturn(someModelList);
}
To understand why this causes a problem, you need to know a little about how Mockito works, and also be aware in what order expressions and statements are evaluated in Java.
Mockito can't read your source code, so in order to figure out what you are asking it to do, it relies a lot on static state. When you call a method on a mock object, Mockito records the details of the call in an internal list of invocations. The when
method reads the last of these invocations off the list and records this invocation in the OngoingStubbing
object it returns.
The line
Mockito.when(mainModel.getList()).thenReturn(someModelList);
causes the following interactions with Mockito:
mainModel.getList()
is called,when
is called,thenReturn
is called on the OngoingStubbing
object returned by the when
method.The thenReturn
method can then instruct the mock it received via the OngoingStubbing
method to handle any suitable call to the getList
method to return someModelList
.
In fact, as Mockito can't see your code, you can also write your mocking as follows:
mainModel.getList();
Mockito.when((List<SomeModel>)null).thenReturn(someModelList);
This style is somewhat less clear to read, especially since in this case the null
has to be casted, but it generates the same sequence of interactions with Mockito and will achieve the same result as the line above.
However, the line
Mockito.when(mainModel.getList()).thenReturn(getSomeList());
causes the following interactions with Mockito:
mainModel.getList()
is called,when
is called,mock
of SomeModel
is created (inside getSomeList()
),model.getName()
is called,At this point Mockito gets confused. It thought you were mocking mainModel.getList()
, but now you're telling it you want to mock the model.getName()
method. To Mockito, it looks like you're doing the following:
when(mainModel.getList());
// ...
when(model.getName()).thenReturn(...);
This looks silly to Mockito
as it can't be sure what you're doing with mainModel.getList()
.
Note that we did not get to the thenReturn
method call, as the JVM needs to evaluate the parameters to this method before it can call the method. In this case, this means calling the getSomeList()
method.
Generally it is a bad design decision to rely on static state, as Mockito does, because it can lead to cases where the Principle of Least Astonishment is violated. However, Mockito's design does make for clear and expressive mocking, even if it leads to astonishment sometimes.
Finally, recent versions of Mockito add an extra line to the error message above. This extra line indicates you may be in the same situation as this question:
3: you are stubbing the behaviour of another mock inside before 'thenReturn' instruction if completed
& and + are both concatenation operators but when you specify an integer while using +, vb.net tries to cast "Hello" into integer to do an addition. If you change "Hello" with "123", you will get the result 124.
According to this link, it is possible to use ddms in the tools directory of the android sdk to take screen captures.
To do this within an application (and not during development), there are also applications to do so. But as @zed_0xff points out it certainly requires root.
I suggest you first call shutil.copytree
, and if an exception is thrown, then retry with shutil.copy
.
import shutil, errno
def copyanything(src, dst):
try:
shutil.copytree(src, dst)
except OSError as exc: # python >2.5
if exc.errno == errno.ENOTDIR:
shutil.copy(src, dst)
else: raise
To replace one or more white space characters by a single blank you should use {2,}
instead of *
, otherwise you would insert
a blank between all non-blank characters.
REGEXP_REPLACE( my_value, '[[:space:]]{2,}', ' ' )
If lakes
is your DataFrame
, you can do something like
area_dict = dict(zip(lakes.area, lakes.count))
The tersest expressive code to find the minimum value is probably rest parameters:
const arr = [14, 58, 20, 77, 66, 82, 42, 67, 42, 4]_x000D_
const min = Math.min(...arr)_x000D_
console.log(min)
_x000D_
Rest parameters are essentially a convenient shorthand for Function.prototype.apply
when you don't need to change the function's context:
var arr = [14, 58, 20, 77, 66, 82, 42, 67, 42, 4]_x000D_
var min = Math.min.apply(Math, arr)_x000D_
console.log(min)
_x000D_
This is also a great use case for Array.prototype.reduce
:
const arr = [14, 58, 20, 77, 66, 82, 42, 67, 42, 4]_x000D_
const min = arr.reduce((a, b) => Math.min(a, b))_x000D_
console.log(min)
_x000D_
It may be tempting to pass Math.min
directly to reduce
, however the callback receives additional parameters:
callback (accumulator, currentValue, currentIndex, array)
In this particular case it may be a bit verbose. reduce
is particularly useful when you have a collection of complex data that you want to aggregate into a single value:
const arr = [{name: 'Location 1', distance: 14}, {name: 'Location 2', distance: 58}, {name: 'Location 3', distance: 20}, {name: 'Location 4', distance: 77}, {name: 'Location 5', distance: 66}, {name: 'Location 6', distance: 82}, {name: 'Location 7', distance: 42}, {name: 'Location 8', distance: 67}, {name: 'Location 9', distance: 42}, {name: 'Location 10', distance: 4}]_x000D_
const closest = arr.reduce(_x000D_
(acc, loc) =>_x000D_
acc.distance < loc.distance_x000D_
? acc_x000D_
: loc_x000D_
)_x000D_
console.log(closest)
_x000D_
And of course you can always use classic iteration:
var arr,_x000D_
i,_x000D_
l,_x000D_
min_x000D_
_x000D_
arr = [14, 58, 20, 77, 66, 82, 42, 67, 42, 4]_x000D_
min = Number.POSITIVE_INFINITY_x000D_
for (i = 0, l = arr.length; i < l; i++) {_x000D_
min = Math.min(min, arr[i])_x000D_
}_x000D_
console.log(min)
_x000D_
...but even classic iteration can get a modern makeover:
const arr = [14, 58, 20, 77, 66, 82, 42, 67, 42, 4]_x000D_
let min = Number.POSITIVE_INFINITY_x000D_
for (const value of arr) {_x000D_
min = Math.min(min, value)_x000D_
}_x000D_
console.log(min)
_x000D_
So 4 years later, Microsoft has open sourced their JDBC driver on Github. I got a notification about this question today, and went and had a look, and I believe I have found the culprit here, mssql-jdbc/src/main/java/com/microsoft/sqlserver/jdbc/SQLServerStatement.java:1713
.
Basically, the driver tries to understand what SQL Server sends back if it is not a definite result set. According to the comments, it goes like this:
Check for errors first. (ln 1669)
Not an error. Is it a result set? (ln 1680)
Not an error or a result set. Maybe a result from a T-SQL statement? That is, one of the following:
- a positive count of the number of rows affected (from INSERT, UPDATE, or DELETE),
- a zero indicating no rows affected, or the statement was DDL, or
- a -1 indicating the statement succeeded, but there is no update count information available (translates to Statement.SUCCESS_NO_INFO in batch update count arrays). (ln 1706)
None of the above. Last chance here... Going into the parser above, we know moreResults was initially true. If we come out with moreResults false, the we hit a DONE token (either DONE (FINAL) or DONE (RPC in batch)) that indicates that the batch succeeded overall, but that there is no information on individual statements' update counts. This is similar to the last case above, except that there is no update count. That is: we have a successful result (return true), but we have no other information about it (updateCount = -1). (ln 1693)
Only way to get here (moreResults is still true, but no apparent results of any kind) is if the TDSParser didn't actually parse anything. That is, we are at EOF in the response. In that case, there truly are no more results. We're done. (ln 1717)
(Emphasis mine)
So you guys were right in the end. SQL simply can't tell how many rows are affected, and defaults to -1
. :)
Try use Build Timestamp Plugin
and use BUILD_TIMESTAMP
variable.
If usb is not working you should checkout debugging over bluetooth (Without Rooting)
http://zcourts.com/2013/07/19/android-debugging-over-bluetooth-without-root/#sthash.hVCLtWSk.dpbs
The @Qualifier
annotation is used to resolve the autowiring conflict, when there are multiple beans of same type.
The @Qualifier
annotation can be used on any class annotated with @Component
or on methods annotated with @Bean
. This annotation can also be applied on constructor arguments or method parameters.
Ex:-
public interface Vehicle {
public void start();
public void stop();
}
There are two beans, Car and Bike implements Vehicle interface
@Component(value="car")
public class Car implements Vehicle {
@Override
public void start() {
System.out.println("Car started");
}
@Override
public void stop() {
System.out.println("Car stopped");
}
}
@Component(value="bike")
public class Bike implements Vehicle {
@Override
public void start() {
System.out.println("Bike started");
}
@Override
public void stop() {
System.out.println("Bike stopped");
}
}
Injecting Bike bean in VehicleService using @Autowired
with @Qualifier
annotation. If you didn't use @Qualifier
, it will throw NoUniqueBeanDefinitionException.
@Component
public class VehicleService {
@Autowired
@Qualifier("bike")
private Vehicle vehicle;
public void service() {
vehicle.start();
vehicle.stop();
}
}
Reference:- @Qualifier annotation example
You can easily launch a market link or an install prompt:
Intent promptInstall = new Intent(Intent.ACTION_VIEW)
.setDataAndType(Uri.parse("file:///path/to/your.apk"),
"application/vnd.android.package-archive");
startActivity(promptInstall);
Intent goToMarket = new Intent(Intent.ACTION_VIEW)
.setData(Uri.parse("market://details?id=com.package.name"));
startActivity(goToMarket);
However, you cannot install .apks without user's explicit permission; not unless the device and your program is rooted.
To add on to the other answers here, if you would like to create a new object of a third different type with a where clause (e.g. one that is not your Entity Framework object) you can do this:
public IEnumerable<ThirdNonEntityClass> demoMethod(IEnumerable<int> property1Values)
{
using(var entityFrameworkObjectContext = new EntityFrameworkObjectContext )
{
var result = entityFrameworkObjectContext.SomeClass
.Join(entityFrameworkObjectContext.SomeOtherClass,
sc => sc.property1,
soc => soc.property2,
(sc, soc) => new {sc, soc})
.Where(s => propertyValues.Any(pvals => pvals == es.sc.property1)
.Select(s => new ThirdNonEntityClass
{
dataValue1 = s.sc.dataValueA,
dataValue2 = s.soc.dataValueB
})
.ToList();
}
return result;
}
Pay special attention to the intermediate object that is created in the Where and Select clauses.
Note that here we also look for any joined objects that have a property1 that matches one of the ones in the input list.
I know this is a bit more complex than what the original asker was looking for, but hopefully it will help someone.
An alternative way if you need something more (besides using the keys
method):
hash = {"apple" => "fruit", "carrot" => "vegetable"}
array = hash.collect {|key,value| key }
obviously you would only do that if you want to manipulate the array while retrieving it..