I found that this happens because: http://support.microsoft.com/kb/913399
SQL Server only releases all the pages that a heap table uses when the following conditions are true: A deletion on this table occurs. A table-level lock is being held. Note A heap table is any table that is not associated with a clustered index.
If pages are not deallocated, other objects in the database cannot reuse the pages.
However, when you enable a row versioning-based isolation level in a SQL Server 2005 database, pages cannot be released even if a table-level lock is being held.
Microsoft's solution: http://support.microsoft.com/kb/913399
To work around this problem, use one of the following methods: Include a TABLOCK hint in the DELETE statement if a row versioning-based isolation level is not enabled. For example, use a statement that is similar to the following:
DELETE FROM TableName WITH (TABLOCK)
Note represents the name of the table. Use the TRUNCATE TABLE statement if you want to delete all the records in the table. For example, use a statement that is similar to the following:
TRUNCATE TABLE TableName
Create a clustered index on a column of the table. For more information about how to create a clustered index on a table, see the "Creating a Clustered Index" topic in SQL
You'll notice at the bottom of the link that it is NOT noted that it applies to SQL Server 2008 but I think it does
I got the same error and found the cause to be a wrong or missing foreign key. (Using JDBC)
You can use concatenation operator and instead of declaring two variables only use one variable
String finalString = cursor.getString(numcol) + cursor.getString(cursor.getColumnIndexOrThrow(db.KEY_DESTINATIE));
you can use ajax calls to call different methods without a postback
$.ajax({
type: "POST",
url: "@(Url.Action("Action", "Controller"))",
data: {id: 'id', id1: 'id1' },
contentType: "application/json; charset=utf-8",
cache: false,
async: true,
success: function (result) {
//do something
}
});
You've imported the certificate into the truststore of the JRE provided in the JDK, but you are running the java.exe of the JRE installed directly.
EDIT
For clarity, and to resolve the morass of misunderstanding in the commentary below, you need to import the certificate into the cacerts
file of the JRE you are intending to use, and that will rarely if ever be the one shipping inside the JDK, because clients won't normally have a JDK. Anything in the commentary below that suggests otherwise should be ignored as not expressing my intention here.
A far better solution would be to create your own truststore, starting with a copy of the cacerts
file, and specifically tell Java to use that one via the system property javax.net.ssl.trustStore.
You should make building this part of your build process, so as to keep up to date with changes I the cacerts
file caused by JDK upgrades.
There is a lot of options to store your data and Android offers you to chose anyone Your data storage options are the following:
Shared Preferences Store private primitive data in key-value pairs. Internal Storage Store private data on the device memory. External Storage Store public data on the shared external storage. SQLite Databases Store structured data in a private database. Network Connection Store data on the web with your own network server
Check here for examples and tuto
This works for me and is reusable.
function isThisDayAWeekend($date) {
$timestamp = strtotime($date);
$weekday= date("l", $timestamp );
if ($weekday =="Saturday" OR $weekday =="Sunday") { return true; }
else {return false; }
}
String content = "";
char character;
if(Serial.available() >0){
//reset this variable!
content = "";
//make string from chars
while(Serial.available()>0) {
character = Serial.read();
content.concat(character);
}
//send back
Serial.print("#");
Serial.print(content);
Serial.print("#");
Serial.flush();
}
My solution is slightly different to any of those above and works as I just ran it.So for interest:
#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
using namespace std;
int main() {
char *name[] = {"john", "bobby", "dear", "test1", "catherine", "nomi", "shinta", "martin", "abe", "may", "zeno", "zack", "angeal", "gabby"};
vector<string> v(name, name + 14);
sort(v.begin(),v.end());
for(vector<string>::const_iterator i = v.begin(); i != v.end(); ++i) cout << *i << ' ';
return 0;
}
Always get a positive random number.
var nexnumber = Guid.NewGuid().GetHashCode();
if (nexnumber < 0)
{
nexnumber *= -1;
}
If you have done anything but in spite of all couldn't connecting?!! In my case i have changed connection part splitting port "," instead of this ":"
The corresponding TCP port or pipe name is not specified in the connection string (such as Srv1\SQL2008, 1433).
Also check out the directory where you put .gitignore
.
It should be in the root of your project:
./myproject/.gitignore
Not in
./myproject/.git/.gitignore
CSS itself doesn't have conditional statements, but here's a hack involving custom properties (a.k.a. "css variables").
In this trivial example, you want to apply a padding based on a certain condition—like an "if" statement.
:root { --is-big: 0; }
.is-big { --is-big: 1; }
.block {
padding: calc(
4rem * var(--is-big) +
1rem * (1 - var(--is-big))
);
}
So any .block
that's an .is-big
or that's a descendant of one will have a padding of 4rem, while all other blocks will only have 1rem. Now I call this a "trivial" example because it can be done without the hack.
.block {
padding: 1rem;
}
.is-big .block,
.block.is-big {
padding: 4rem;
}
But I will leave its applications to your imagination.
In the numpy README.txt file, it says
After installation, tests can be run with:
python -c 'import numpy; numpy.test()'
This should be a sufficient test for proper installation.
But can I abort a Task (in .Net 4.0) in the same way not by cancellation mechanism. I want to kill the Task immediately.
Other answerers have told you not to do it. But yes, you can do it. You can supply Thread.Abort()
as the delegate to be called by the Task's cancellation mechanism. Here is how you could configure this:
class HardAborter
{
public bool WasAborted { get; private set; }
private CancellationTokenSource Canceller { get; set; }
private Task<object> Worker { get; set; }
public void Start(Func<object> DoFunc)
{
WasAborted = false;
// start a task with a means to do a hard abort (unsafe!)
Canceller = new CancellationTokenSource();
Worker = Task.Factory.StartNew(() =>
{
try
{
// specify this thread's Abort() as the cancel delegate
using (Canceller.Token.Register(Thread.CurrentThread.Abort))
{
return DoFunc();
}
}
catch (ThreadAbortException)
{
WasAborted = true;
return false;
}
}, Canceller.Token);
}
public void Abort()
{
Canceller.Cancel();
}
}
disclaimer: don't do this.
Here is an example of what not to do:
var doNotDoThis = new HardAborter();
// start a thread writing to the console
doNotDoThis.Start(() =>
{
while (true)
{
Thread.Sleep(100);
Console.Write(".");
}
return null;
});
// wait a second to see some output and show the WasAborted value as false
Thread.Sleep(1000);
Console.WriteLine("WasAborted: " + doNotDoThis.WasAborted);
// wait another second, abort, and print the time
Thread.Sleep(1000);
doNotDoThis.Abort();
Console.WriteLine("Abort triggered at " + DateTime.Now);
// wait until the abort finishes and print the time
while (!doNotDoThis.WasAborted) { Thread.CurrentThread.Join(0); }
Console.WriteLine("WasAborted: " + doNotDoThis.WasAborted + " at " + DateTime.Now);
Console.ReadKey();
I was getting this error with Laravel Sanctum. I fixed it by adding \Illuminate\Session\Middleware\StartSession::class,
to the api
middleware group in Kernel.php, but I later figured out this "worked" because my authentication routes were added in api.php
instead of web.php
, so Laravel was using the wrong auth guard.
I moved these routes here into web.php
and then they started working properly with the AuthenticatesUsers.php
trait:
Route::group(['middleware' => ['guest', 'throttle:10,5']], function () {
Route::post('register', 'Auth\RegisterController@register')->name('register');
Route::post('login', 'Auth\LoginController@login')->name('login');
Route::post('password/email', 'Auth\ForgotPasswordController@sendResetLinkEmail');
Route::post('password/reset', 'Auth\ResetPasswordController@reset');
Route::post('email/verify/{user}', 'Auth\VerificationController@verify')->name('verification.verify');
Route::post('email/resend', 'Auth\VerificationController@resend');
Route::post('oauth/{driver}', 'Auth\OAuthController@redirectToProvider')->name('oauth.redirect');
Route::get('oauth/{driver}/callback', 'Auth\OAuthController@handleProviderCallback')->name('oauth.callback');
});
Route::post('logout', 'Auth\LoginController@logout')->name('logout');
I figured out the problem after I got another weird error about RequestGuard::logout()
does not exist.
It made me realize that my custom auth routes are calling methods from the AuthenticatesUsers trait, but I wasn't using Auth::routes()
to accomplish it. Then I realized Laravel uses the web guard by default and that means routes should be in routes/web.php
.
This is what my settings look like now with Sanctum and a decoupled Vue SPA app:
Kernel.php
protected $middlewareGroups = [
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
// \Illuminate\Session\Middleware\AuthenticateSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
\Illuminate\Routing\Middleware\SubstituteBindings::class,
],
'api' => [
EnsureFrontendRequestsAreStateful::class,
\Illuminate\Routing\Middleware\SubstituteBindings::class,
'throttle:60,1',
],
];
Note: With Laravel Sanctum and same-domain Vue SPA, you use httpOnly cookies for session cookie, and remember me cookie, and unsecure cookie for CSRF, so you use the
web
guard for auth, and every other protected, JSON-returning route should useauth:sanctum
middleware.
config/auth.php
'defaults' => [
'guard' => 'web',
'passwords' => 'users',
],
...
'guards' => [
'web' => [
'driver' => 'session',
'provider' => 'users',
],
'api' => [
'driver' => 'token',
'provider' => 'users',
'hash' => false,
],
],
Then you can have unit tests such as this, where critically, Auth::check()
, Auth::user()
, and Auth::logout()
work as expected with minimal config and maximal usage of AuthenticatesUsers
and RegistersUsers
traits.
Here are a couple of my login unit tests:
TestCase.php
/**
* Creates and/or returns the designated regular user for unit testing
*
* @return \App\User
*/
public function user() : User
{
$user = User::query()->firstWhere('email', '[email protected]');
if ($user) {
return $user;
}
// User::generate() is just a wrapper around User::create()
$user = User::generate('Test User', '[email protected]', self::AUTH_PASSWORD);
return $user;
}
/**
* Resets AuthManager state by logging out the user from all auth guards.
* This is used between unit tests to wipe cached auth state.
*
* @param array $guards
* @return void
*/
protected function resetAuth(array $guards = null) : void
{
$guards = $guards ?: array_keys(config('auth.guards'));
foreach ($guards as $guard) {
$guard = $this->app['auth']->guard($guard);
if ($guard instanceof SessionGuard) {
$guard->logout();
}
}
$protectedProperty = new \ReflectionProperty($this->app['auth'], 'guards');
$protectedProperty->setAccessible(true);
$protectedProperty->setValue($this->app['auth'], []);
}
LoginTest.php
protected $auth_guard = 'web';
/** @test */
public function it_can_login()
{
$user = $this->user();
$this->postJson(route('login'), ['email' => $user->email, 'password' => TestCase::AUTH_PASSWORD])
->assertStatus(200)
->assertJsonStructure([
'user' => [
...expectedUserFields,
],
]);
$this->assertEquals(Auth::check(), true);
$this->assertEquals(Auth::user()->email, $user->email);
$this->assertAuthenticated($this->auth_guard);
$this->assertAuthenticatedAs($user, $this->auth_guard);
$this->resetAuth();
}
/** @test */
public function it_can_logout()
{
$this->actingAs($this->user())
->postJson(route('logout'))
->assertStatus(204);
$this->assertGuest($this->auth_guard);
$this->resetAuth();
}
I overrided the registered
and authenticated
methods in the Laravel auth traits so that they return the user object instead of just the 204 OPTIONS:
public function authenticated(Request $request, User $user)
{
return response()->json([
'user' => $user,
]);
}
protected function registered(Request $request, User $user)
{
return response()->json([
'user' => $user,
]);
}
Look at the vendor code for the auth traits. You can use them untouched, plus those two above methods.
Here is my Vue SPA's Vuex actions for login:
async login({ commit }, credentials) {
try {
const { data } = await axios.post(route('login'), {
...credentials,
remember: credentials.remember || undefined,
});
commit(FETCH_USER_SUCCESS, { user: data.user });
commit(LOGIN);
return commit(CLEAR_INTENDED_URL);
} catch (err) {
commit(LOGOUT);
throw new Error(`auth/login# Problem logging user in: ${err}.`);
}
},
async logout({ commit }) {
try {
await axios.post(route('logout'));
return commit(LOGOUT);
} catch (err) {
commit(LOGOUT);
throw new Error(`auth/logout# Problem logging user out: ${err}.`);
}
},
It took me over a week to get Laravel Sanctum + same-domain Vue SPA + auth unit tests all working up to my standard, so hopefully my answer here can help save others time in the future.
window.location.href.split('/');
Will give you an array containing all the URL parts, which you can access like a normal array.
Or an ever more elegant solution suggested by @Dylan, with only the path parts:
window.location.pathname.split('/');
Example for Transaction
begin tran tt
Your sql statements
if error occurred rollback tran tt else commit tran tt
As long as you have not executed commit tran tt , data will not be changed
You can use this also,
String[] baths = getResources().getStringArray(R.array.array_baths);
mSpnBaths.setSelection(Arrays.asList(baths).indexOf(value_here));
If you want it really easy and a joy to automate, check out Chocolatey.org/install and you can basically copy and paste these commands and tweak it based on what versions of VC++ you need.
This command is taken from https://chocolatey.org/install
Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
Once you have chocolatey installed you can either close and reopen your Powershell terminal or run this command:
Import-Module "$env:ChocolateyInstall\helpers\chocolateyInstaller.psm1" ; Update-SessionEnvironment
Now you can use Chocolatey to install Python (latest version of 3.x is default).
choco install python
# This next command installs the latest VisualStudio installer that lets you get specific versions of the build
# Microsoft has replaced the 2015 and 2017 installer links with this one, and we can still use it to install the 2015 and 2017 components
choco install visualstudio2019buildtools --package-parameters "--add Microsoft.VisualStudio.Component.VC.140 --passive --locale en-US --add Microsoft.VisualStudio.Component.Windows10SDK.$($PSVersionTable.BuildVersion.Build) --no-includeRecommended" -y --timeout 0
# Usually need the "unlimited" timeout aka "0" because Visual Studio Installer takes forever
# Tool portion
# Microsoft.VisualStudio.Product.BuildTools
# Component portion(s)
# Microsoft.VisualStudio.Component.VC.140
# Win10SDK needs to match your current Win10 build version
# $($PSVersionTable.BuildVersion.Build)
# Microsoft.VisualStudio.Component.Windows10SDK.$($PSVersionTable.BuildVersion.Build)
# Because VS2019 Build Tools are dumb, need to manually link a couple files between the SDK and the VC++ dirs
# You may need to tweak the version here, but it has been updated to be as dynamic as possible
# Use an elevated Powershell or elevated cmd prompt (if using cmd.exe just use the bits after /c)
cmd /c mklink "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\rc.exe" "C:\Program Files (x86)\Windows Kits\10\bin\$($PSVersionTable.BuildVersion.Major).$($PSVersionTable.BuildVersion.Minor).$($PSVersionTable.BuildVersion.Build).0\x64\rc.exe"
cmd /c mklink "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\rcdll.dll" "C:\Program Files (x86)\Windows Kits\10\bin\$($PSVersionTable.BuildVersion.Major).$($PSVersionTable.BuildVersion.Minor).$($PSVersionTable.BuildVersion.Build).0\x64\rcdll.dll"
Once you have this installed, you should reboot. I've occasionally had things work without a reboot, but your pip install
commands will work best if you reboot first.
Now you can pip install pipenv
or pip install complex-package
and should be good to go.
Simply with native html & css :
<div class="tooltip">Hover over me
<span class="tooltiptext">Tooltip text</span>
</div>
/* Tooltip container */
.tooltip {
position: relative;
display: inline-block;
border-bottom: 1px dotted black; /* If you want dots under the hoverable text */
}
/* Tooltip text */
.tooltip .tooltiptext {
visibility: hidden;
width: 120px;
background-color: #555;
color: #fff;
text-align: center;
padding: 5px 0;
border-radius: 6px;
/* Position the tooltip text */
position: absolute;
z-index: 1;
bottom: 125%;
left: 50%;
margin-left: -60px;
/* Fade in tooltip */
opacity: 0;
transition: opacity 0.3s;
}
/* Tooltip arrow */
.tooltip .tooltiptext::after {
content: "";
position: absolute;
top: 100%;
left: 50%;
margin-left: -5px;
border-width: 5px;
border-style: solid;
border-color: #555 transparent transparent transparent;
}
/* Show the tooltip text when you mouse over the tooltip container */
.tooltip:hover .tooltiptext {
visibility: visible;
opacity: 1;
}
Here is the source of the example from w3schools
Dirk's method above will absolutely work, but if you're looking for a way to bring in a long string where whitespace/structure is important to preserve (example: a SQL query using RODBC) there is a two step solution.
1) Bring the text string in across multiple lines
long_string <- "this
is
a
long
string
with
whitespace"
2) R will introduce a bunch of \n
characters. Strip those out with strwrap()
, which destroys whitespace, per the documentation:
strwrap(long_string, width=10000, simplify=TRUE)
By telling strwrap to wrap your text to a very, very long row, you get a single character vector with no whitespace/newline characters.
Just for the fun, I'm offering an alternative solution using jOOQ and Java 8. Instead of using jOOQ, you could be using any other API that maps JDBC ResultSet
to List
, such as Spring JDBC or Apache DbUtils, or write your own ResultSetIterator
:
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(r -> Arrays.stream(r.intoArray()))
.collect(Collectors.toList());
List<Object> list =
DSL.using(connection)
.fetch("SELECT col1, col2, col3, ...")
.stream()
.flatMap(Record::intoStream)
.collect(Collectors.toList());
(Disclaimer, I work for the company behind jOOQ)
$Machinedispatch =
$this->Machinedispatch->find('first',array('order'=>array('Machinedispatch.id DESC')));
Simplest way of finding last inserted row. For me getLastInsertId() this not works.
There are only two steps required, and the full XCode.app is not required at all:
sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install
At this point the "Installing Softwre" dialog pops up:
That's it!
def camelCase(st):
s = st.title()
d = "".join(s.split())
d = d.replace(d[0],d[0].lower())
return d
If you have assembly-language access, you can use the CPUID instruction to get all sorts of information about the CPU. It's portable between operating systems, though you'll need to use manufacturer-specific information to determine how to find the number of cores. Here's a document that describes how to do it on Intel chips, and page 11 of this one describes the AMD specification.
Some nice guy handled the issue by using the Class 1 StartSSL certificate and shared Apache config that adds certificate support (will work with any certificate) and code for changing links in existing *.plist files automatically. Too long to copy, so here is the link: http://cases.azoft.com/how-to-fix-certificate-is-not-valid-error-on-ios-7/
In Swift 2.0 Apple added availability checking using a far more convenient syntax (Read more here). Now you can check the OS version with a cleaner syntax:
if #available(iOS 9, *) {
// Then we are on iOS 9
} else {
// iOS 8 or earlier
}
This is the preferred over checking respondsToSelector
etc (What's New In Swift). Now the compiler will always warn you if you aren't guarding your code properly.
New in iOS 8 is NSProcessInfo
allowing for better semantic versioning checks.
For minimum deployment targets of iOS 8.0 or above, use
NSProcessInfo
operatingSystemVersion
orisOperatingSystemAtLeastVersion
.
This would yield the following:
let minimumVersion = NSOperatingSystemVersion(majorVersion: 8, minorVersion: 1, patchVersion: 2)
if NSProcessInfo().isOperatingSystemAtLeastVersion(minimumVersion) {
//current version is >= (8.1.2)
} else {
//current version is < (8.1.2)
}
For minimum deployment targets of iOS 7.1 or below, use compare with
NSStringCompareOptions.NumericSearch
onUIDevice systemVersion
.
This would yield:
let minimumVersionString = "3.1.3"
let versionComparison = UIDevice.currentDevice().systemVersion.compare(minimumVersionString, options: .NumericSearch)
switch versionComparison {
case .OrderedSame, .OrderedDescending:
//current version is >= (3.1.3)
break
case .OrderedAscending:
//current version is < (3.1.3)
fallthrough
default:
break;
}
More reading at NSHipster.
I've recently fixed this issue and in my instance it was a file that was compressed that I was trying to read. Check the file format first. Then check that the contents are what the extension refers to.
I always come to this question when I hit an error in the test environment and remember, "I've done this before, but I can do it straight in the web.config without having to modify code and re-deploy to the test environment, but it takes 2 changes... what was it again?"
For future reference
<system.web>
<customErrors mode="Off"></customErrors>
</system.web>
AND
<system.webServer>
<httpErrors errorMode="Detailed" existingResponse="PassThrough"></httpErrors>
</system.webServer>
You can get element count of list by following two ways:
>>> l = ['a','b','c']
>>> len(l)
3
>>> l.__len__()
3
Two possibilities here. Java Version incompatible or import
Add clickListener on button like this
btUpdate.setOnClickListener(onclickListener)
add this code in your activity
val onclickListener: View.OnClickListener = View.OnClickListener { view ->
when (view.id) {
R.id.btUpdate -> updateData()
}
}
cat a.sh
#! /bin/bash
#going forward report subshell or command exit value if errors
#set -e
(cat b.txt)
echo "hi"
./a.sh; echo $?
cat: b.txt: No such file or directory
hi
0
with set -e commented out we see that echo "hi" exit status being reported and hi is printed.
cat a.sh
#! /bin/bash
#going forward report subshell or command exit value if errors
set -e
(cat b.txt)
echo "hi"
./a.sh; echo $?
cat: b.txt: No such file or directory
1
Now we see b.txt error being reported instead and no hi printed.
So default behaviour of shell script is to ignore command errors and continue processing and report exit status of last command. If you want to exit on error and report its status we can use -e option.
androidx.localbroadcastmanager
is being deprecated in version 1.1.0
Reason
LocalBroadcastManager
is an application-wide event bus and embraces layer violations in your app; any component may listen to events from any other component.
It inherits unnecessary use-case limitations of system BroadcastManager; developers have to use Intent even though objects live in only one process and never leave it. For this same reason, it doesn’t follow feature-wise BroadcastManager .
These add up to a confusing developer experience.
Replacement
You can replace usage of LocalBroadcastManager
with other implementations of the observable pattern. Depending on your use case, suitable options may be LiveData
or reactive streams.
Advantage of LiveData
You can extend a LiveData
object using the singleton pattern to wrap system services so that they can be shared in your app. The LiveData
object connects to the system service once, and then any observer that needs the resource can just watch the LiveData
object.
public class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
LiveData<BigDecimal> myPriceListener = ...;
myPriceListener.observe(this, price -> {
// Update the UI.
});
}
}
The observe()
method passes the fragment, which is an instance of LifecycleOwner
, as the first argument. Doing so denotes that this observer is bound to the Lifecycle
object associated with the owner, meaning:
If the Lifecycle object is not in an active state, then the observer isn't called even if the value changes.
After the Lifecycle object is destroyed, the observer is automatically removed
The fact that LiveData
objects are lifecycle-aware means that you can share them between multiple activities, fragments, and services.
I prefer inline-block, although float is also useful. Table-cell isn't rendered correctly by old IEs (neither does inline-block, but there's the zoom: 1; *display: inline
hack that I use frequently). If you have children that have a smaller height than their parent, floats will bring them to the top, whereas inline-block will screw up sometimes.
Most of the time, the browser will interpret everything correctly, unless, of course, it's IE. You always have to check to make sure that IE doesn't suck-- for example, the table-cell concept.
In all reality, yes, it boils down to personal preference.
One technique you could use to get rid of white space would be to set a font-size
of 0 to the parent, then give the font-size
back to the children, although that's a hassle, and gross.
The debug_backtrace()
function is the only way to know this, if you're lazy it's one more reason you should code the GetCallingMethodName()
yourself. Fight the laziness! :D
To get the fields info too, you can use the following:
SELECT TABLE_SCHEMA, TABLE_NAME,
COLUMN_NAME, substring(DATA_TYPE, 1,1) AS DATA_TYPE
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA NOT IN("information_schema", "mysql", "performance_schema")
ORDER BY TABLE_SCHEMA, TABLE_NAME, ORDINAL_POSITION
You may also want to check whether the double is higher than the max Int value before trying to convert the value to an Int.
let number = Double.infinity
if number >= Double(integerLiteral: Int64.max) {
let rounded = Int.max
} else {
let rounded = Int(number.rounded())
}
Create a zip file, then download the file, by setting the header, read the zip contents and output the file.
http://www.php.net/manual/en/function.ziparchive-addfile.php
In case if you are using node js, then this could be the possible solution
const express = require("express");
const app = express();
const server = app.listen(8080);
server.keepAliveTimeout = 61 * 1000;
The JMockit project site contains plenty of comparative information for current mocking toolkits.
In particular, check out the feature comparison matrix, which covers EasyMock, jMock, Mockito, Unitils Mock, PowerMock, and of course JMockit. I try to keep it accurate and up-to-date, as much as possible.
javamonkey79 is right. But don't forget what you might want to do (e.g. try something else or notify someone) if object is not an instance of String.
String myString;
if (object instanceof String) {
myString = (String) object;
} else {
// do something else
}
BTW: If you use ClassCastException instead of Exception in your code above, you can be sure that you will catch the exception caused by casting object to String. And not any other exceptions caused by other code (e.g. NullPointerExceptions).
Probably it is too late but the below thing worked for me:
terminal.integrated.windows.shell: C:\\Users\\<user_name>\\Softwares\\Git\\bin\\bash.exe
Try to open new terminal. It should open in bash editor in integrated mode.
To do any of the above (i.e. access protected folders from within your phone itself), you still need root. (That includes changing mount-permissions on the /data folder and accessing it)
Without root, accessing the /data
directly to read except from within your application via code isn't possible. So you could try copying that file to sdcard or somewhere accessible, and then, you should be able to access it normally.
Rooting won't void your warranty if you have a developer device. I'm sorry, there isn't any other way AFAIK.
If you are using Gradle, you can add it as a compile
dependency.
Instructions
Make sure you have the Android Support Repository
SDK package installed. Android Studio automatically recognizes this repository during the build process (not sure about plain IntelliJ).
Add the dependency to {project}/build.gradle
dependencies {
compile 'com.android.support:appcompat-v7:+'
}
Click the Sync Project with Gradle Files
button.
EDIT: Looks like these same instructions are on the documentation under Adding libraries with resources -> Using Android Studio
.
Swift 5 Answer
I found this thread because I needed a Swift version of this question. As nobody has answered with the solution, here's mine:
extension UIColor {
var rgba: (red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat) {
var red: CGFloat = 0
var green: CGFloat = 0
var blue: CGFloat = 0
var alpha: CGFloat = 0
getRed(&red, green: &green, blue: &blue, alpha: &alpha)
return (red, green, blue, alpha)
}
func isSimilar(to colorB: UIColor) -> Bool {
let rgbA = self.rgba
let rgbB = colorB.rgba
let diffRed = abs(CGFloat(rgbA.red) - CGFloat(rgbB.red))
let diffGreen = abs(rgbA.green - rgbB.green)
let diffBlue = abs(rgbA.blue - rgbB.blue)
let pctRed = diffRed
let pctGreen = diffGreen
let pctBlue = diffBlue
let pct = (pctRed + pctGreen + pctBlue) / 3 * 100
return pct < 10 ? true : false
}
}
Usage:
let black: UIColor = UIColor.black
let white: UIColor = UIColor.white
let similar: Bool = black.isSimilar(to: white)
I set less than 10% difference to return similar colours, but you can customise this yourself.
Try this:
.slideContainer {_x000D_
overflow-x: scroll;_x000D_
white-space: nowrap;_x000D_
}_x000D_
.slide {_x000D_
display: inline-block;_x000D_
width: 600px;_x000D_
white-space: normal;_x000D_
}
_x000D_
<div class="slideContainer">_x000D_
<span class="slide">Some content</span>_x000D_
<span class="slide">More content. Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</span>_x000D_
<span class="slide">Even more content!</span>_x000D_
</div>
_x000D_
Note that you can omit .slideContainer { overflow-x: scroll; }
(which browsers may or may not support when you read this), and you'll get a scrollbar on the window instead of on this container.
The key here is display: inline-block
. This has decent cross-browser support nowadays, but as usual, it's worth testing in all target browsers to be sure.
I usually host the image on the site, this can link to any hosted image. Just toss this in the readme. Works for .rst
files, not sure about .md
.. image:: https://url/path/to/image
:height: 100px
:width: 200 px
:scale: 50 %
The accepted answer is good. Just to make it easier to understand.
Example component:
export default function MyComponent(props) {
const [updateView, setUpdateView] = useState(0);
return (
<>
<span style={{ display: "none" }}>{updateView}</span>
</>
);
}
To force re-rendering call the code below:
setUpdateView((updateView) => ++updateView);
You can use url_for
to get the URL for a controller and action and then use redirect_to
to go to that URL.
redirect_to url_for(:controller => :controller_name, :action => :action_name)
You can call controller function from view in the following way:
Controller:
public function read() {
$object['controller'] = $this;
$this->load->view('read', $object);
}
View:
// to call controller function from view, do
$controller->myOtherFunct();
I had researched this and the URLRewrite method works well. Can't seem to find the change scripted anywhere well. I wrote this compatible with PowerShell v2 and above and tested it on IIS 7.5.
# Add Allowed Server Variable
Add-WebConfiguration /system.webServer/rewrite/allowedServerVariables -atIndex 0 -value @{name="RESPONSE_SERVER"}
# Rule Name
$ruleName = "Remove Server Response Header"
# Add outbound IIS Rewrite Rule
Add-WebConfigurationProperty -pspath "iis:\" -filter "system.webServer/rewrite/outboundrules" -name "." -value @{name=$ruleName; stopProcessing='False'}
#Set Properties of newly created outbound rule
Set-WebConfigurationProperty -pspath "MACHINE/WEBROOT/APPHOST" -filter "system.webServer/rewrite/outboundRules/rule[@name='$ruleName']/match" -name "serverVariable" -value "RESPONSE_SERVER"
Set-WebConfigurationProperty -pspath "MACHINE/WEBROOT/APPHOST" -filter "system.webServer/rewrite/outboundRules/rule[@name='$ruleName']/match" -name "pattern" -value ".*"
Set-WebConfigurationProperty -pspath "MACHINE/WEBROOT/APPHOST" -filter "system.webServer/rewrite/outboundRules/rule[@name='$ruleName']/action" -name "type" -value "Rewrite"
This feature is not available in older versions of Netbeans (up to 7.1) and the plugin is not supported anymore.
A plugin is now available for NetBeans 6.9.
Very similar to Vishnu's answer but uses the lapply to map all the data to characters then to assign them as the headers. This is really helpful if your data is imported as factors.
DF[] <- lapply(DF, as.character)
colnames(DF) <- DF[1, ]
DF <- DF[-1 ,]
note that that if you have a lot of numeric data or factors you want you'll need to convert them back. In this case it may make sense to store the character data frame, extract the row you want, and then apply it to the original data frame
tempDF <- DF
tempDF[] <- lapply(DF, as.character)
colnames(DF) <- tempDF[1, ]
DF <- DF[-1 ,]
tempDF <- NULL
If you want to convert an int which is in the range 0-9 to a char, you may usually write something like this:
int x;
char c = '0' + x;
Now, if you want a character string, just add a terminating '\0' char:
char s[] = {'0' + x, '\0'};
Note that:
Try this, it's simple and clear. I have found it from here : https://css-tricks.com/tinted-images-multiple-backgrounds/
.tinted-image {
width: 300px;
height: 200px;
background:
/* top, transparent red */
linear-gradient(
rgba(255, 0, 0, 0.45),
rgba(255, 0, 0, 0.45)
),
/* bottom, image */
url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/3/owl1.jpg);
}
On Logout from the Client Side, the easiest way is to remove the token from the storage of browser.
But, What if you want to destroy the token on the Node server -
The problem with JWT package is that it doesn't provide any method or way to destroy the token.
So in order to destroy the token on the serverside you may use jwt-redis package instead of JWT
This library (jwt-redis) completely repeats the entire functionality of the library jsonwebtoken, with one important addition. Jwt-redis allows you to store the token label in redis to verify validity. The absence of a token label in redis makes the token not valid. To destroy the token in jwt-redis, there is a destroy method
it works in this way :
1) Install jwt-redis from npm
2) To Create -
var redis = require('redis');
var JWTR = require('jwt-redis').default;
var redisClient = redis.createClient();
var jwtr = new JWTR(redisClient);
jwtr.sign(payload, secret)
.then((token)=>{
// your code
})
.catch((error)=>{
// error handling
});
3) To verify -
jwtr.verify(token, secret);
4) To Destroy -
jwtr.destroy(token)
Note : you can provide expiresIn during signin of token in the same as it is provided in JWT.
You can copy your div like this
$(".package").html($(".button").html())
The adb tool can be found in sdk/platform-tools/
If you don't see this directory in your SDK, launch the SDK Manager and install "Android SDK Platform-tools"
Also update your PATH environment variable to include the platform-tools/ directory, so you can execute adb from any location.
I had the same issue. Deleted the nodemodules
folder and opened command prompt as administrator and then ran npm install
.
All packages installed fine.
-l
(that's a lower-case L).
If you just want to limit the find to the first level you can do:
find /dev -maxdepth 1 -name 'abc-*'
... or if you particularly want to exclude the .udev
directory, you can do:
find /dev -name '.udev' -prune -o -name 'abc-*' -print
You need to make sure that the files on the device mounted by fuse will not have the same paths and file names as files which already existing in the nonempty mountpoint. Otherwise this would lead to confusion. If you are sure, pass -o nonempty
to the mount command.
You can try what is happening using the following commands.. (Linux rocks!) .. without destroying anything..
// create 10 MB file
dd if=/dev/zero of=partition bs=1024 count=10240
// create loopdevice from that file
sudo losetup /dev/loop0 ./partition
// create filesystem on it
sudo e2mkfs.ext3 /dev/loop0
// mount the partition to temporary folder and create a file
mkdir test
sudo mount -o loop /dev/loop0 test
echo "bar" | sudo tee test/foo
# unmount the device
sudo umount /dev/loop0
# create the file again
echo "bar2" > test/foo
# now mount the device (having file with same name on it)
# and see what happens
sudo mount -o loop /dev/loop0 test
This message is the __str__
attribute of exit
look at these examples :
1
>>> print exit
Use exit() or Ctrl-D (i.e. EOF) to exit
2
>>> exit.__str__()
'Use exit() or Ctrl-D (i.e. EOF) to exit'
3
>>> getattr(exit, '__str__')()
'Use exit() or Ctrl-D (i.e. EOF) to exit'
In my case of a list of integers works this:
@Value("#{${my.list.of.integers}}")
private List<Integer> listOfIntegers;
Property file:
my.list.of.integers={100,200,300,400,999}
if you want to bookkeep some variable before page refresh
$(window).on('beforeunload', function(){
// your logic here
});
if you want o load some content base on some condition
$(window).on('load', function(){
// your logic here`enter code here`
});
The following code will give you your hash for Facebook, but you have to follow these steps in order to get the release candidate hash.
Copy and paste this code in your main activity
try {
PackageInfo info = getPackageManager().getPackageInfo(
"com.example.packagename",
PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
}
catch (NameNotFoundException e) {
}
catch (NoSuchAlgorithmException e) {
}
Generate a signed APK file.
https://developers.facebook.com/apps
. It's under settings.Go to the traffic section inside graphs. Here you can find how many unique visitors you have. Other than this there is no other way to know who exactly viewed your account.
The regular filter options in Excel don't allow for more than 2 criteria settings. To do 2+ criteria settings, you need to use the Advanced Filter option. Below are the steps I did to try this out.
http://www.bettersolutions.com/excel/EDZ483/QT419412321.htm
Set up the criteria. I put this above the values I want to filter. You could do that or put on a different worksheet. Note that putting the criteria in rows will make it an 'OR' filter and putting them in columns will make it an 'AND' filter.
I put the data starting on row 5:
Select the first data row (A6) and click the Advanced Filter option. The List Range should be pre-populated. Select the Criteria range as E1:E4 and click OK.
That should be it. Note that I use the '=' operator. You will want to use something a bit different to test for file extensions.
Use localStorage for that. It's persistent over sessions.
Writing :
localStorage['myKey'] = 'somestring'; // only strings
Reading :
var myVar = localStorage['myKey'] || 'defaultValue';
If you need to store complex structures, you might serialize them in JSON. For example :
Reading :
var stored = localStorage['myKey'];
if (stored) myVar = JSON.parse(stored);
else myVar = {a:'test', b: [1, 2, 3]};
Writing :
localStorage['myKey'] = JSON.stringify(myVar);
Note that you may use more than one key. They'll all be retrieved by all pages on the same domain.
Unless you want to be compatible with IE7, you have no reason to use the obsolete and small cookies.
You should call plt.show()
only at the end after creating all the plots.
I had the same error after I installed new packages or updated them:
...
npm ERR! code ELIFECYCLE
npm ERR! errno 1
...
It helped me to run installation command once again or a couple of times. After that, the error disappeared.
With dplyr
and stringr
you can use mutate_all
:
> df %>% mutate_all(funs(length = str_length(.)))
col1 col2 col1_length col2_length
1 abc adf qqwe 3 8
2 abcd d 4 1
3 a e 1 1
4 abcdefg f 7 1
You have several options for iterating over a dictionary.
If you iterate over the dictionary itself (for team in league
), you will be iterating over the keys of the dictionary. When looping with a for loop, the behavior will be the same whether you loop over the dict (league
) itself, or league.keys()
:
for team in league.keys():
runs_scored, runs_allowed = map(float, league[team])
You can also iterate over both the keys and the values at once by iterating over league.items()
:
for team, runs in league.items():
runs_scored, runs_allowed = map(float, runs)
You can even perform your tuple unpacking while iterating:
for team, (runs_scored, runs_allowed) in league.items():
runs_scored = float(runs_scored)
runs_allowed = float(runs_allowed)
Why don't use time.h library? Runs on Windows and POSIX systems:
#include <iostream>
#include <time.h>
using namespace std;
void sleepcp(int milliseconds);
void sleepcp(int milliseconds) // Cross-platform sleep function
{
clock_t time_end;
time_end = clock() + milliseconds * CLOCKS_PER_SEC/1000;
while (clock() < time_end)
{
}
}
int main()
{
cout << "Hi! At the count to 3, I'll die! :)" << endl;
sleepcp(3000);
cout << "urrrrggghhhh!" << endl;
}
Corrected code - now CPU stays in IDLE state [2014.05.24]:
#include <iostream>
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif // _WIN32
using namespace std;
void sleepcp(int milliseconds);
void sleepcp(int milliseconds) // Cross-platform sleep function
{
#ifdef _WIN32
Sleep(milliseconds);
#else
usleep(milliseconds * 1000);
#endif // _WIN32
}
int main()
{
cout << "Hi! At the count to 3, I'll die! :)" << endl;
sleepcp(3000);
cout << "urrrrggghhhh!" << endl;
}
function setDate(){
var now = new Date();
now.setMinutes(now.getMinutes() - now.getTimezoneOffset());
var timeToSet = now.toISOString().slice(0,16);
/*
If you have an element called "eventDate" like the following:
<input type="datetime-local" name="eventdate" id="eventdate" />
and you would like to set the current and minimum time then use the following:
*/
var elem = document.getElementById("eventDate");
elem.value = timeToSet;
elem.min = timeToSet;
}
Simple, just use .set_color
>>> barlist=plt.bar([1,2,3,4], [1,2,3,4])
>>> barlist[0].set_color('r')
>>> plt.show()
For your new question, not much harder either, just need to find the bar from your axis, an example:
>>> f=plt.figure()
>>> ax=f.add_subplot(1,1,1)
>>> ax.bar([1,2,3,4], [1,2,3,4])
<Container object of 4 artists>
>>> ax.get_children()
[<matplotlib.axis.XAxis object at 0x6529850>,
<matplotlib.axis.YAxis object at 0x78460d0>,
<matplotlib.patches.Rectangle object at 0x733cc50>,
<matplotlib.patches.Rectangle object at 0x733cdd0>,
<matplotlib.patches.Rectangle object at 0x777f290>,
<matplotlib.patches.Rectangle object at 0x777f710>,
<matplotlib.text.Text object at 0x7836450>,
<matplotlib.patches.Rectangle object at 0x7836390>,
<matplotlib.spines.Spine object at 0x6529950>,
<matplotlib.spines.Spine object at 0x69aef50>,
<matplotlib.spines.Spine object at 0x69ae310>,
<matplotlib.spines.Spine object at 0x69aea50>]
>>> ax.get_children()[2].set_color('r')
#You can also try to locate the first patches.Rectangle object
#instead of direct calling the index.
If you have a complex plot and want to identify the bars first, add those:
>>> import matplotlib
>>> childrenLS=ax.get_children()
>>> barlist=filter(lambda x: isinstance(x, matplotlib.patches.Rectangle), childrenLS)
[<matplotlib.patches.Rectangle object at 0x3103650>,
<matplotlib.patches.Rectangle object at 0x3103810>,
<matplotlib.patches.Rectangle object at 0x3129850>,
<matplotlib.patches.Rectangle object at 0x3129cd0>,
<matplotlib.patches.Rectangle object at 0x3112ad0>]
Official Kotlin Way:
override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
// Check if the key event was the Back button and if there's history
if (keyCode == KeyEvent.KEYCODE_BACK && myWebView.canGoBack()) {
myWebView.goBack()
return true
}
// If it wasn't the Back key or there's no web page history, bubble up to the default
// system behavior (probably exit the activity)
return super.onKeyDown(keyCode, event)
}
https://developer.android.com/guide/webapps/webview.html#NavigatingHistory
Use JSON Simple,
http://code.google.com/p/json-simple/
Which has a small foot-print, no dependencies so it's perfect for Android.
You can do something like this,
Object obj=JSONValue.parse(buffer.tString());
JSONArray finalResult=(JSONArray)obj;
bind()
of INADDR_ANY
does NOT "generate a random IP". It binds the socket to all available interfaces.
For a server, you typically want to bind to all interfaces - not just "localhost".
If you wish to bind your socket to localhost only, the syntax would be my_sockaddress.sin_addr.s_addr = inet_addr("127.0.0.1");
, then call bind(my_socket, (SOCKADDR *) &my_sockaddr, ...)
.
As it happens, INADDR_ANY
is a constant that happens to equal "zero":
http://www.castaglia.org/proftpd/doc/devel-guide/src/include/inet.h.html
# define INADDR_ANY ((unsigned long int) 0x00000000)
...
# define INADDR_NONE 0xffffffff
...
# define INPORT_ANY 0
...
If you're not already familiar with it, I urge you to check out Beej's Guide to Sockets Programming:
Since people are still reading this, an additional note:
When a process wants to receive new incoming packets or connections, it should bind a socket to a local interface address using bind(2).
In this case, only one IP socket may be bound to any given local (address, port) pair. When INADDR_ANY is specified in the bind call, the socket will be bound to all local interfaces.
When listen(2) is called on an unbound socket, the socket is automatically bound to a random free port with the local address set to INADDR_ANY.
When connect(2) is called on an unbound socket, the socket is automatically bound to a random free port or to a usable shared port with the local address set to INADDR_ANY...
There are several special addresses: INADDR_LOOPBACK (127.0.0.1) always refers to the local host via the loopback device; INADDR_ANY (0.0.0.0) means any address for binding...
Also:
bind() — Bind a name to a socket:
If the (sin_addr.s_addr) field is set to the constant INADDR_ANY, as defined in netinet/in.h, the caller is requesting that the socket be bound to all network interfaces on the host. Subsequently, UDP packets and TCP connections from all interfaces (which match the bound name) are routed to the application. This becomes important when a server offers a service to multiple networks. By leaving the address unspecified, the server can accept all UDP packets and TCP connection requests made for its port, regardless of the network interface on which the requests arrived.
The enumerate function works as follows:
doc = """I like movie. But I don't like the cast. The story is very nice"""
doc1 = doc.split('.')
for i in enumerate(doc1):
print(i)
The output is
(0, 'I like movie')
(1, " But I don't like the cast")
(2, ' The story is very nice')
You can achieve your goal by ViewModel and Live Data which is cleared by Arnav Rao. Now I put an example to clear it more neatly.
First, the assumed ViewModel
is named SharedViewModel.java
.
public class SharedViewModel extends ViewModel {
private final MutableLiveData<Item> selected = new MutableLiveData<Item>();
public void select(Item item) {
selected.setValue(item);
}
public LiveData<Item> getSelected() {
return selected;
}
}
Then the source fragment is the MasterFragment.java
from where we want to send a data.
public class MasterFragment extends Fragment {
private SharedViewModel model;
public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
model = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
itemSelector.setOnClickListener(item -> {
// Data is sent
model.select(item);
});
}
}
And finally the destination fragment is the DetailFragment.java
to where we want to receive the data.
public class DetailFragment extends Fragment {
public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
SharedViewModel model = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
model.getSelected().observe(getViewLifecycleOwner(), { item ->
// Data is received
});
}
}
In my case, the argument type was different in the header file and .cpp file. In the header file the type was std::wstring
and in the .cpp file it was LPCWSTR
.
I have seen this once. Are the users requesting different amounts of data? I found that even if you can configure a binding for data payloads (i.e. maxReceivedMessageSize
), the httpRuntime
maxRequestLength
trumps the WCF setting, so if IIS is trying to serve a request that exceeds that, it exhibits this behavior.
Think of it like this:
If maxReceivedMessageSize
is 12MB in your WCF behavior, and maxRequestLength
is 4MB (default), IIS wins.
They are not synonyms.
display:none
removes the element from the normal flow of the page, allowing other elements to fill in.
visibility:hidden
leaves the element in the normal flow of the page such that is still occupies space.
Imagine you are in line for a ride at an amusement park and someone in the line gets so rowdy that security plucks them from the line. Everyone in line will then move forward one position to fill the now empty slot. This is like display:none
.
Contrast this with the similar situation, but that someone in front of you puts on an invisibility cloak. While viewing the line, it will look like there is an empty space, but people can't really fill that empty looking space because someone is still there. This is like visibility:hidden
.
Install below NuGet Package will solve your issue
Microsoft.EntityFrameworkCore.SqlServer
Install-Package Microsoft.EntityFrameworkCore.SqlServer
As eaon21 and monkey said, source map files basically turn minified code into its unminified version for debugging.
You can find the .map files here. Just add them into the same directory as the minified js files and it'll stop complaining. The reason they get fetched is the
/*
//@ sourceMappingURL=angular.min.js.map
*/
at the end of angular.min.js. If you don't want to add the .map files you can remove those lines and it'll stop the fetch attempt, but if you plan on debugging it's always good to keep the source maps linked.
This kind of worked for me. Though FAB doesn't float independently, but now it isn't getting pushed down.
Observe the weights given inside the LinearLayout
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/andsanddkasd">
<android.support.v7.widget.RecyclerView
android:id="@+id/sharedResourcesRecyclerView"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="4"
/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_gravity="bottom|right"
android:src="@android:drawable/ic_input_add"
android:layout_weight="1"/>
</LinearLayout>
Hope this helps :)
I had the same issue in vscode. Just create a .prettierrc file in your root directory and add the following json. For single quotes add:
{
"singleQuote": true
}
For double quotes add:
{
"singleQuote": false
}
Support for the extended ternary operator was added in Twig 1.12.0.
If foo
echo yes
else echo no
:
{{ foo ? 'yes' : 'no' }}
If foo
echo it, else echo no
:
{{ foo ?: 'no' }}
or
{{ foo ? foo : 'no' }}
If foo
echo yes
else echo nothing:
{{ foo ? 'yes' }}
or
{{ foo ? 'yes' : '' }}
Returns the value of foo
if it is defined and not null, no
otherwise:
{{ foo ?? 'no' }}
Returns the value of foo
if it is defined (empty values also count), no
otherwise:
{{ foo|default('no') }}
There's a very easy way if you were using a web application just follow this link.
just do in eclipse :
File > import > web > war file
Then select the war file of your app :)) very easy !!
This is because a DATE
column in Oracle also contains a time part. The result of the to_date()
function is a date with the time set to 00:00:00
and thus it probably doesn't match any rows in the table.
You should use:
SELECT EMP_NAME, DEPT
FROM EMPLOYEE
WHERE trunc(TIME_CREATED) = TO_DATE('26/JAN/2011','dd/mon/yyyy')
Solved it. Turns out the column had a limited set of characters it would accept, changed it, and now the query works fine.
Update:
It's somewhat late for an update, but since I just stumbled on this question, and noticed that my previous answer is not one I'm happy with. Since the question involved replaceing a single word, it's incredible nobody thought of using word boundaries (\b
)
'a cat is not a caterpillar'.replace(/\bcat\b/gi,'dog');
//"a dog is not a caterpillar"
This is a simple regex that avoids replacing parts of words in most cases. However, a dash -
is still considered a word boundary. So conditionals can be used in this case to avoid replacing strings like cool-cat
:
'a cat is not a cool-cat'.replace(/\bcat\b/gi,'dog');//wrong
//"a dog is not a cool-dog" -- nips
'a cat is not a cool-cat'.replace(/(?:\b([^-]))cat(?:\b([^-]))/gi,'$1dog$2');
//"a dog is not a cool-cat"
basically, this question is the same as the question here: Javascript replace " ' " with " '' "
@Mike, check the answer I gave there... regexp isn't the only way to replace multiple occurrences of a subsrting, far from it. Think flexible, think split!
var newText = "the cat looks like a cat".split('cat').join('dog');
Alternatively, to prevent replacing word parts -which the approved answer will do, too! You can get around this issue using regular expressions that are, I admit, somewhat more complex and as an upshot of that, a tad slower, too:
var regText = "the cat looks like a cat".replace(/(?:(^|[^a-z]))(([^a-z]*)(?=cat)cat)(?![a-z])/gi,"$1dog");
The output is the same as the accepted answer, however, using the /cat/g expression on this string:
var oops = 'the cat looks like a cat, not a caterpillar or coolcat'.replace(/cat/g,'dog');
//returns "the dog looks like a dog, not a dogerpillar or cooldog" ??
Oops indeed, this probably isn't what you want. What is, then? IMHO, a regex that only replaces 'cat' conditionally. (ie not part of a word), like so:
var caterpillar = 'the cat looks like a cat, not a caterpillar or coolcat'.replace(/(?:(^|[^a-z]))(([^a-z]*)(?=cat)cat)(?![a-z])/gi,"$1dog");
//return "the dog looks like a dog, not a caterpillar or coolcat"
My guess is, this meets your needs. It's not fullproof, of course, but it should be enough to get you started. I'd recommend reading some more on these pages. This'll prove useful in perfecting this expression to meet your specific needs.
http://www.javascriptkit.com/jsref/regexp.shtml
http://www.regular-expressions.info
Final addition:
Given that this question still gets a lot of views, I thought I might add an example of .replace
used with a callback function. In this case, it dramatically simplifies the expression and provides even more flexibility, like replacing with correct capitalisation or replacing both cat
and cats
in one go:
'Two cats are not 1 Cat! They\'re just cool-cats, you caterpillar'
.replace(/(^|.\b)(cat)(s?\b.|$)/gi,function(all,char1,cat,char2)
{
//check 1st, capitalize if required
var replacement = (cat.charAt(0) === 'C' ? 'D' : 'd') + 'og';
if (char1 === ' ' && char2 === 's')
{//replace plurals, too
cat = replacement + 's';
}
else
{//do not replace if dashes are matched
cat = char1 === '-' || char2 === '-' ? cat : replacement;
}
return char1 + cat + char2;//return replacement string
});
//returns:
//Two dogs are not 1 Dog! They're just cool-cats, you caterpillar
In Visual Studio 2015 (this still holds in 2019 for the same value), check the setting:
Tools > Options > Environment > Documents > Check for consistent line endings on load
VS2015 will now prompt you to convert line endings when you open a file where they are inconsistent, so all you need to do is open the files, select the desired option from the prompt and save them again.
This worked for me and also worked with bootstrap tables
<style>
.table td, .table th {
font-size: 10px;
}
</style>
The below solution works for a MySQL database:
UPDATE table1 a , table2 b
SET a.columname = 'some value'
WHERE b.columnname IS NULL ;
"Have you tried turning it off and on again?" (Roy of The IT crowd)
This happened to me today, which is why I ended up to this page. Seeing that error was weird since, recently, I have not made any changes in my Python environment. Interestingly, I observed that if I open a new notebook and import pandas
I would not get the same error message. So, I did shutdown
the troublesome notebook and started it again and voila it is working again!
Even though this solved the problem (at least for me), I cannot readily come up with an explanation as to why it happened in the first place!
The following are the 5 steps required:
You can find the step by step VC++ IDE screen shot at http://www.softwareandfinance.com/Visual_CPP/DLLDynamicBinding.html
Here is the code snippet:
int main()
{
/***
__declspec(dllimport) bool GetWelcomeMessage(char *buf, int len); // used for static binding
***/
typedef bool (*GW)(char *buf, int len);
HMODULE hModule = LoadLibrary(TEXT("TestServer.DLL"));
GW GetWelcomeMessage = (GW) GetProcAddress(hModule, "GetWelcomeMessage");
char buf[128];
if(GetWelcomeMessage(buf, 128) == true)
std::cout << buf;
return 0;
}
Quick and clean solution (linux tested) (After fatidic February 27, 2014)
Uninstall npm
npm rm npm -g
Install npm (new URL is www.npmjs.org instead npmjs.org)
curl https://www.npmjs.org/install.sh | sh
Tip: how to install node.js in linux https://stackoverflow.com/a/22099363/333061
For me this solution works:
edittext.setInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
You'll need to issue two commands:
It's complicated.
First of all, in this code
const p = new Promise((resolve) => {
resolve(4);
});
the type of p
is inferred as Promise<{}>
. There is open issue about this on typescript github, so arguably this is a bug, because obviously (for a human), p
should be Promise<number>
.
Then, Promise<{}>
is compatible with Promise<number>
, because basically the only property a promise has is then
method, and then
is compatible in these two promise types in accordance with typescript rules for function types compatibility. That's why there is no error in whatever1
.
But the purpose of async
is to pretend that you are dealing with actual values, not promises, and then you get the error in whatever2
because {}
is obvioulsy not compatible with number
.
So the async
behavior is the same, but currently some workaround is necessary to make typescript compile it. You could simply provide explicit generic argument when creating a promise like this:
const whatever2 = async (): Promise<number> => {
return new Promise<number>((resolve) => {
resolve(4);
});
};
In Android Studio (at least since v2.3.3) you can run the command directly from the UI:
Click on the Gradle tab and then double click on :yourmodule -> Tasks -> android -> androidDependencies
The tree will be displayed in the Gradle Console tab
To stage an entire folder, you'd enter this command:
$git add .
The period will add all files in the folder.
Yes we do it all the time. You return a static instance rather than a new Object
static Direction getOppositeDirection(Direction d){
Direction result = null;
if (d != null){
int newCode = -d.getCode();
for (Direction direction : Direction.values()){
if (d.getCode() == newCode){
result = direction;
}
}
}
return result;
}
if you are using kotlin the use below code. it'll work
// for using image path
val image = Drawable.createFromPath(path)
val bitmap = (image as BitmapDrawable).bitmap
Problem :
Problem 1
- laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- laravel/framework v5.8.38 requires ext-mbstring * -> the requested PHP extension mbstring is missing from your system.
- Installation request for laravel/framework (locked at v5.8.38, required as 5.8.*) -> satisfiable by laravel/framework[v5.8.38].
To enable extensions, verify that they are enabled in your .ini files:
- C:\xampp\php\php.ini
You can also run `php --ini` inside terminal to see which files are used by PHP in CLI mode.
Solution :
if you using xampp just remove ' ; ' from
;extension=mbstring
in php.ini , save it, done!
cPickle
comes with the standard library… in python 2.x. You are on python 3.x, so if you want cPickle
, you can do this:
>>> import _pickle as cPickle
However, in 3.x, it's easier just to use pickle
.
No need to install anything. If something requires cPickle
in python 3.x, then that's probably a bug.
I describe here a problem that I faced when run npm install
- the package does not appear in node_modules
.
The issue was that the name
value in package.json
of installed package was different than the name of imported package (key in package.json
of my project).
So if your installed project name is some-package
(name value in its package.json
) then
in package.json
of your project write: "some-package": "owner/some-repo#tag"
.
As long as your file has consistent formatting (i.e. line-breaks), this is easy with just basic file IO and string operations:
with open('my_file.txt', 'rU') as in_file:
data = in_file.read().split('\n')
That will store your data file as a list of items, one per line. To then put it into a file, you would do the opposite:
with open('new_file.txt', 'w') as out_file:
out_file.write('\n'.join(data)) # This will create a string with all of the items in data separated by new-line characters
Hopefully that fits what you're looking for.
The following can be used to get the date:
function date_date() {
var date = new Date();
var year = date.getYear();
var month = date.getMonth() + 1; if(month.toString().length==1){var month =
'0'+month;}
var day = date.getDate(); if(day.toString().length==1){var day = '0'+day;}
var hour = date.getHours(); if(hour.toString().length==1){var hour = '0'+hour;}
var minu = date.getMinutes(); if(minu.toString().length==1){var minu = '0'+minu;}
var seco = date.getSeconds(); if(seco.toString().length==1){var seco = '0'+seco;}
var date = year+'·'+month+'·'+day+'·'+hour+'·'+minu+'·'+seco;
Logger.log(date);
}
I can offer you a jquery solution
add this in your <head></head>
tag
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
add this after </ul>
<script> $('ul li:first').remove(); </script>
Who needs sed
? Here is the bash
way:
cat test.txt | while read line; do echo -n "$line "; done
I can't add a comment yet, so I wanted to share that HTTP_REFERER is not always sent.
Because the inequality operator in VBA is <>
If strTest <> "" Then
.....
the operator !=
is used in C#, C++.
Actually there are 3 places where gradle.properties
can be placed:
GRADLE_USER_HOME
environment variable, which if not set defaults to USER_HOME/.gradlemyProject2
in your case)myProject
)Gradle looks for gradle.properties
in all these places while giving precedence to properties definition based on the order above. So for example, for a property defined in gradle user home directory (#1) and the sub-project (#2) its value will be taken from gradle user home directory (#1).
You can find more details about it in gradle documentation here.
The default value for the type
attribute of button
elements is "submit". Set it to type="button"
to produce a button that doesn't submit the form.
<button type="button">Submit</button>
In the words of the HTML Standard: "Does nothing."
Simply in Code Behind Page use:-
SqlConnection con = new SqlConnection("Data Source = DellPC; Initial Catalog = Account; user = sa; password = admin");
It Should Work Just Fine
Pointer arithmetic is not allowed on void*
pointers.
Sorry for coding with Kotlin. But I faced the same problem. I solved with the code below.
list.setOnItemClickListener{ _, view, _, _ ->
val text1 = view.find<TextView>(R.id.~~).text
}
You can put an id which shows a TextView that you want in "~~".
Hope it'll help someone!
I was having problems here (i.e. sending form-data whilst uploading a file) until I used the following:
files = {'file': (filename, open(filepath, 'rb'), 'text/xml'),
'Content-Disposition': 'form-data; name="file"; filename="' + filename + '"',
'Content-Type': 'text/xml'}
That's the input that ended up working for me. In Chrome Dev Tools -> Network tab, I clicked the request I was interested in. In the Headers tab, there's a Form Data section, and it showed both the Content-Disposition and the Content-Type headers being set there.
I did NOT need to set headers in the actual requests.post() command for this to succeed (including them actually caused it to fail)
Make sure the folder with the standard header files is in the projects path.
I don't know where this is in Turbo C, but I would think there's a way of doing this.
You can use a transaction (https://firebase.google.com/docs/firestore/manage-data/transactions) to get the array, push onto it and then update the document:
const booking = { some: "data" };
const userRef = this.db.collection("users").doc(userId);
this.db.runTransaction(transaction => {
// This code may get re-run multiple times if there are conflicts.
return transaction.get(userRef).then(doc => {
if (!doc.data().bookings) {
transaction.set({
bookings: [booking]
});
} else {
const bookings = doc.data().bookings;
bookings.push(booking);
transaction.update(userRef, { bookings: bookings });
}
});
}).then(function () {
console.log("Transaction successfully committed!");
}).catch(function (error) {
console.log("Transaction failed: ", error);
});
One very practical way to do this is to create a dummy start page for your tests that is simply a form with POST that has a single "start test" button and a bunch of <input type="hidden"
... elements with the appropriate post data.
For example you might create a SeleniumTestStart.html
page with these contents:
<body>
<form action="/index.php" method="post">
<input id="starttestbutton" type="submit" value="starttest"/>
<input type="hidden" name="stageid" value="stage-you-need-your-test-to-start-at"/>
</form>
</body>
In this example, index.php is where your normal web app is located.
The Selenium code at the start of your tests would then include:
open /SeleniumTestStart.html
clickAndWait starttestbutton
This is very similar to other mock and stub techniques used in automated testing. You are just mocking the entry point to the web app.
Obviously there are some limitations to this approach:
Please consider reading my article about the Qualities of an Ideal Test
Instead you can simply have the href like below:
<a href="javascript:;">My Link</a>
It will not scroll to the top.
If using command line tools, do
sdkmanager 'extras;google;m2repository'
sdkmanager 'extras;android;m2repository'
You can set the default authenticator for http requests like this:
Authenticator.setDefault (new Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication ("username", "password".toCharArray());
}
});
Also, if you require more flexibility, you can check out the Apache HttpClient, which will give you more authentication options (as well as session support, etc.)
For me, it crashed because getBackground
returned a GradientDrawable
instead of a ShapeDrawable
.
So i modified it like this:
((GradientDrawable)someView.getBackground()).setColor(someColor);
You can get a circular gradient using android:type="radial"
:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:type="radial" android:gradientRadius="250dp"
android:startColor="#E9E9E9" android:endColor="#D4D4D4" />
</shape>
Also see Stack Overflow question: Should I always use the AndAlso and OrElse operators?.
Also: A comment for those who mentioned using And
if the right side of the expression has a side-effect you need:
If the right side has a side effect you need, just move it to the left side rather than using "And". You only really need "And" if both sides have side effects. And if you have that many side effects going on you're probably doing something else wrong. In general, you really should prefer AndAlso.
If this is not a performance issue for you, you can write
public String getFirstName(Person person) {
try {
return person.getName().getGivenName();
} catch (NullPointerException ignored) {
return null;
}
}
SELECT LAST(row_name) FROM table_name
Here a solution fast and easy that worked for me without relaying on Serialization/Deserialization.
public class MyClass
{
public virtual MyClass DeepClone()
{
var returnObj = (MyClass)MemberwiseClone();
var type = returnObj.GetType();
var fieldInfoArray = type.GetRuntimeFields().ToArray();
foreach (var fieldInfo in fieldInfoArray)
{
object sourceFieldValue = fieldInfo.GetValue(this);
if (!(sourceFieldValue is MyClass))
{
continue;
}
var sourceObj = (MyClass)sourceFieldValue;
var clonedObj = sourceObj.DeepClone();
fieldInfo.SetValue(returnObj, clonedObj);
}
return returnObj;
}
}
EDIT: requires
using System.Linq;
using System.Reflection;
That's How I used it
public MyClass Clone(MyClass theObjectIneededToClone)
{
MyClass clonedObj = theObjectIneededToClone.DeepClone();
}
Using jQuery it's quite trivial. v2.0 uses the table
class on all tables.
$('.table > tbody > tr').click(function() {
// row was clicked
});
In scala (I saw some other attempts, and wasn't impressed):
def formatDuration(duration: Duration): String = {
import duration._ // get access to all the members ;)
f"$toDaysPart $toHoursPart%02d:$toMinutesPart%02d:$toSecondsPart%02d:$toMillisPart%03d"
}
Looks horrible yes? Well that's why we use IDEs to write this stuff so that the method calls ($toHoursPart
etc) are a different color.
The f"..."
is a printf
/String.format
style string interpolator (which is what allows the $
code injection to work)
Given an output of 1 14:06:32.583
, the f
interpolated string would be equivalent to String.format("1 %02d:%02d:%02d.%03d", 14, 6, 32, 583)
Setting the index name can also be accomplished at creation:
pd.DataFrame(data={'age': [10,20,30], 'height': [100, 170, 175]}, index=pd.Series(['a', 'b', 'c'], name='Tag'))
GetAwaiter()
, that is used by await
, is implemented as an extension method in the Async CTP. I'm not sure what exactly are you using (you mention both the Async CTP and VS 2012 RC in your question), but it's possible the Async targeting pack uses the same technique.
The problem then is that extension methods don't work with dynamic
. What you can do is to explicitly specify that you're working with a Task
, which means the extension method will work, and then switch back to dynamic
:
private async void MyButtonClick(object sender, RoutedEventArgs e)
{
dynamic request = new SerializableDynamicObject();
request.Operation = "test";
Task<SerializableDynamicObject> task = Client(request);
dynamic result = await task;
// use result here
}
Or, since the Client()
method is actually not dynamic, you could call it with SerializableDynamicObject
, not dynamic
, and so limit using dynamic
as much as possible:
private async void MyButtonClick(object sender, RoutedEventArgs e)
{
var request = new SerializableDynamicObject();
dynamic dynamicRequest = request;
dynamicRequest.Operation = "test";
var task = Client(request);
dynamic result = await task;
// use result here
}
Check your .bashrc
file for aliases.
Heres a easy and fast way using AsEnumerable().Distinct()
private DataTable RemoveDuplicatesRecords(DataTable dt)
{
//Returns just 5 unique rows
var UniqueRows = dt.AsEnumerable().Distinct(DataRowComparer.Default);
DataTable dt2 = UniqueRows.CopyToDataTable();
return dt2;
}
My Blog Article: Remove duplicate rows from datatable
AssemblyVersion
pretty much stays internal to .NET, while AssemblyFileVersion
is what Windows sees. If you go to the properties of an assembly sitting in a directory and switch to the version tab, the AssemblyFileVersion
is what you'll see up top. If you sort files by version, this is what's used by Explorer.
The AssemblyInformationalVersion
maps to the "Product Version" and is meant to be purely "human-used".
AssemblyVersion
is certainly the most important, but I wouldn't skip AssemblyFileVersion
, either. If you don't provide AssemblyInformationalVersion
, the compiler adds it for you by stripping off the "revision" piece of your version number and leaving the major.minor.build.
Add reference of service in your service or copy dll.
simply I think you are missing a single quote in your code
if ((hr==20)) document.write("Good Night"); document.getElementById('Night"here").style.display=''
it should be like this
if ((hr==20)) document.write("Good Night"); document.getElementById('Night').style.display=''
The following should do the trick - Only SqlServer
Alter TRIGGER Catagory_Master_Date_update ON Catagory_Master AFTER delete,Update
AS
BEGIN
SET NOCOUNT ON;
Declare @id int
DECLARE @cDate as DateTime
set @cDate =(select Getdate())
select @id=deleted.Catagory_id from deleted
print @cDate
execute dbo.psp_Update_Category @id
END
Alter PROCEDURE dbo.psp_Update_Category
@id int
AS
BEGIN
DECLARE @cDate as DateTime
set @cDate =(select Getdate())
--Update Catagory_Master Set Modify_date=''+@cDate+'' Where Catagory_ID=@id --@UserID
Insert into Catagory_Master (Catagory_id,Catagory_Name) values(12,'Testing11')
END
I had this issue with a weird behavior: clearing the browser cache didn't fix it but clearing the cookies (that is, the PHP session ID cookie) did solve the issue.
This has to be done after you have checked all other answers, including verifying you do have the token in a hidden form input field.
To suppress the page number on the first page, add \thispagestyle{empty}
after the \maketitle
command.
The second page of the document will then be numbered "2". If you want this page to be numbered "1", you can add \pagenumbering{arabic}
after the \clearpage
command, and this will reset the page number.
Here's a complete minimal example:
\documentclass[notitlepage]{article}
\title{My Report}
\author{My Name}
\begin{document}
\maketitle
\thispagestyle{empty}
\begin{abstract}
\ldots
\end{abstract}
\clearpage
\pagenumbering{arabic}
\section{First Section}
\ldots
\end{document}
Use the change event of the select:
$('#my_select').change(function()
{
$(this).parents('td').css('background', '#000000');
});
Here lies your problem:
private void fillTextView (int id, String text) {
TextView tv = (TextView) findViewById(id);
tv.setText(text); // tv is null
}
--> (TextView) findViewById(id); // returns null But from your code, I can't find why this method returns null. Try to track down, what id you give as a parameter and if this view with the specified id exists.
The error message is very clear and even tells you at what method. From the documentation:
public final View findViewById (int id)
Look for a child view with the given id. If this view has the given id, return this view.
Parameters
id The id to search for.
Returns
The view that has the given id in the hierarchy or null
http://developer.android.com/reference/android/view/View.html#findViewById%28int%29
In other words: You have no view with the id you give as a parameter.
Are you using .NET 3.5? You could use the ZipPackage
class and related classes. Its more than just zipping up a file list because it wants a MIME type for each file you add. It might do what you want.
I'm currently using these classes for a similar problem to archive several related files into a single file for download. We use a file extension to associate the download file with our desktop app. One small problem we ran into was that its not possible to just use a third-party tool like 7-zip to create the zip files because the client side code can't open it -- ZipPackage adds a hidden file describing the content type of each component file and cannot open a zip file if that content type file is missing.
I've used a do while
when I'm reading a sentinel value at the beginning of a file, but other than that, I don't think it's abnormal that this structure isn't too commonly used--do-while
s are really situational.
-- file --
5
Joe
Bob
Jake
Sarah
Sue
-- code --
int MAX;
int count = 0;
do {
MAX = a.readLine();
k[count] = a.readLine();
count++;
} while(count <= MAX)
To solve this problem.
cd projectName
npm update
ng serve -o
The best way to handle the LazyInitializationException
is to use the JOIN FETCH
directive for all the entities that you need to fetch along.
Anyway, DO NOT use the following Anti-Patterns as suggested by some of the answers:
Sometimes, a DTO projection is a better choice than fetching entities, and this way, you won't get any LazyInitializationException
.
Use Convert.ToDouble(value)
rather than (double)value
. It takes an object
and supports all of the types you asked for! :)
Also, your method is always returning a string
in the code above; I'd recommend having the method indicate so, and give it a more obvious name (public string FormatLargeNumber(object value)
)
This is a well-known old question, but I'd like to share some more insights about modern programming language research and design.
Traditionally (in the sense of structured programming) and informally, a procedure is a reusable structural construct to have "input" and to do something programmable. When something is needed to be done within a procedure, you can provide (actual) arguments to the procedure in a procedure call coded in the source code (usually in a kind of an expression), and the actions coded in the procedures body (provided in the definition of the procedure) will be executed with the substitution of the arguments into the (formal) parameters used in the body.
A function is more than a procedure because return values can also be specified as the "output" in the body. Function calls are more or less same to procedure calls, except that you can also use the result of the function call, syntactically (usually as a subexpression of some other expression).
Traditionally, procedure calls (rather than function calls) are used to indicate that no output must be interested, and there must be side effects to avoid the call being no-ops, hence emphasizing the imperative programming paradigm. Many traditional programming languages like Pascal provide both "procedures" and "functions" to distinguish this intentional difference of styles.
(To be clear, the "input" and "output" mentioned above are simplified notions based on the syntactic properties of functions. Many languages additionally support passing arguments to parameters by reference/sharing, to allow users transporting information encoded in arguments during the calls. Such parameter may even be just called as "in/out parameter". This feature is based on the nature of the objects being passed in the calls, which is orthogonal to the properties of the feature of procedure/function.)
However, if the result of a function call is not needed, it can be just (at least logically) ignored, and function definitions/function calls should be consistent to procedure definitions/procedure calls in this way. ALGOL-like languages like C, C++ and Java, all provide the feature of "function" in this fashion: by encoding the result type void
as a special case of functions looking like traditional procedures, there is no need to provide the feature of "procedures" separately. This prevents some bloat in the language design.
Since SICP is mentioned, it is also worth noting that in the Scheme language specified by RnRS, a procedure may or may not have to return the result of the computation. This is the union of the traditional "function" (returning the result) and "procedure" (returning nothing), essentially same to the "function" concept of many ALGOL-like languages (and actually sharing even more guarantees like applicative evaluations of the operands before the call). However, old-fashion differences still occur even in normative documents like SRFI-96.
I don't know much about the exact reasons behind the divergence, but as I have experienced, it seems that language designers will be happier without specification bloat nowadays. That is, "procedure" as a standalone feature is unnecessary. Techniques like void
type is already sufficient to mark the use where side effects should be emphasized. This is also more natural to users having experiences on C-like languages, which are popular more than a few decades. Moreover, it avoids the embarrassment in cases like RnRS where "procedures" are actually "functions" in the broader sense.
In theory, a function can be specified with a specified unit type as the type of the function call result to indicate that result is special. This distinguishes the traditional procedures (where the result of a call is uninterested) from others. There are different styles in the design of a language:
#inert
) also works.void
type in ALGOL-like languages is exactly an example of this technique. ISO C11's _Noreturn
is a similar but more subtle one in this kind.As the traditional concept derived from math, there are tons of black magic most people do not bother to know. Strictly speaking, you won't be likely get the whole things clear as per your math books. CS books might not provide much help, either.
With concerning of programming languages, there are several caveats:
{{{}}, {}}
...) besides some limited contexts.Try this:
from __future__ import with_statement
filename1 = "G:\\test1.TXT"
filename2 = "G:\\test2.TXT"
with open(filename1) as f1:
with open(filename2) as f2:
file1list = f1.read().splitlines()
file2list = f2.read().splitlines()
list1length = len(file1list)
list2length = len(file2list)
if list1length == list2length:
for index in range(len(file1list)):
if file1list[index] == file2list[index]:
print file1list[index] + "==" + file2list[index]
else:
print file1list[index] + "!=" + file2list[index]+" Not-Equel"
else:
print "difference inthe size of the file and number of lines"
You could use "child process" module of nodejs to execute any shell commands or scripts with in nodejs. Let me show you with an example, I am running a shell script(hi.sh) with in nodejs.
hi.sh
echo "Hi There!"
node_program.js
const { exec } = require('child_process');
var yourscript = exec('sh hi.sh',
(error, stdout, stderr) => {
console.log(stdout);
console.log(stderr);
if (error !== null) {
console.log(`exec error: ${error}`);
}
});
Here, when I run the nodejs file, it will execute the shell file and the output would be:
Run
node node_program.js
output
Hi There!
You can execute any script just by mentioning the shell command or shell script in exec
callback.
Hope this helps! Happy coding :)
For PHP 5.6+
$mysqli = new mysqli("example.com","username","password","database");
$result = $mysqli->query("SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='table_name' AND COLUMN_NAME='column_name'");
$row = $result->fetch_assoc();
var_dump($row);
First set path of python
https://stackoverflow.com/questions/3701646/how-to-add-to-the-pythonpath-in-windows
and run python
file
python filename.py
command line argument with python
python filename.py command-line argument
Well, .html()
uses .innerHTML
which is faster than DOM creation.
Try this:
EditText editText = (EditText) findViewById(R.id.myTextViewId);
editText.requestFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
http://developer.android.com/reference/android/view/View.html#requestFocus()
hmm, well here's a workaround anyway:
function JSON_stringify(s, emit_unicode)
{
var json = JSON.stringify(s);
return emit_unicode ? json : json.replace(/[\u007f-\uffff]/g,
function(c) {
return '\\u'+('0000'+c.charCodeAt(0).toString(16)).slice(-4);
}
);
}
test case:
js>s='15\u00f8C 3\u0111';
15°C 3?
js>JSON_stringify(s, true)
"15°C 3?"
js>JSON_stringify(s, false)
"15\u00f8C 3\u0111"
You can use the comparison operators to compare strings. A strcmp
function could be defined like this:
function strcmp(a, b) {
if (a.toString() < b.toString()) return -1;
if (a.toString() > b.toString()) return 1;
return 0;
}
Edit Here’s a string comparison function that takes at most min { length(a), length(b) } comparisons to tell how two strings relate to each other:
function strcmp(a, b) {
a = a.toString(), b = b.toString();
for (var i=0,n=Math.max(a.length, b.length); i<n && a.charAt(i) === b.charAt(i); ++i);
if (i === n) return 0;
return a.charAt(i) > b.charAt(i) ? -1 : 1;
}
FileReaderJS can read the files for you. You get the file content inside onLoad(e)
event handler as e.target.result
.
Given a data setup like this:
The formula in cell D2 and copied down is:
=INDEX($B$2:$B$28,MATCH(1,INDEX(($A$2:$A$28=LARGE($A$2:$A$28,ROWS(D$1:D1)))*(COUNTIF(D$1:D1,$B$2:$B$28)=0),),0))
This formula will work even if there are tied OPS scores among players.
I encounter this error when I'm querying an entry of another domain of the forrest and this entry have some custom attribut of the other domain.
To solve this error, I only need to specify the server in the url LDAP :
Path with error = LDAP://CN=MyObj,DC=DOMAIN,DC=COM
Path without error : LDAP://domain.com:389/CN=MyObj,DC=Domain,DC=COM
In the light of the evolving thread, I have updated the below:
_:-ms-fullscreen, :root .foo { property:value; }
_:-ms-lang(x), .foo { property:value; }
or
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
.foo{property:value;}
}
_:-ms-lang(x), .foo { property:value\9; }
@media screen and (min-width:0\0) and (min-resolution: +72dpi) {
//.foo CSS
.foo{property:value;}
}
@media screen and (min-width:0\0) {
.foo /* backslash-9 removes.foo & old Safari 4 */
}
@media screen and (min-width:0\0) and (min-resolution: .001dpcm) {
//.foo CSS
.foo{property:value;}
}
@media screen\0 {
.foo {property:value;}
}
.foo { property /*\**/: value\9 }
html>/**/body .foo {property:value;}
or
@media \0screen {
.foo {property:value;}
}
*+html .foo {property:value;}
or
*:first-child+html .foo {property:value;}
@media \0screen\,screen\9 {
.foo {property:value;}
}
@media screen\9 {
.foo {property:value;}
}
or
.foo { *property:value;}
or
.foo { #property:value;}
@media \0screen\,screen\9 {
.foo {property:value;}
}
* html .foo {property:value;}
or
.foo { _property:value;}
Modernizr runs quickly on page load to detect features; it then creates a JavaScript object with the results, and adds classes to the html element
Javascript:
var b = document.documentElement;
b.setAttribute('data-useragent', navigator.userAgent);
b.setAttribute('data-platform', navigator.platform );
b.className += ((!!('ontouchstart' in window) || !!('onmsgesturechange' in window))?' touch':'');
Adds (e.g) the below to html
element:
data-useragent='Mozilla/5.0 (compatible; M.foo 9.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C)'
data-platform='Win32'
Allowing very targetted CSS selectors, e.g.:
html[data-useragent*='Chrome/13.0'] .nav{
background:url(img/radial_grad.png) center bottom no-repeat;
}
If possible, identify and fix any issue(s) without hacks. Support progressive enhancement and graceful degradation. However, this is an 'ideal world' scenario not always obtainable, as such- the above should help provide some good options.
<?php
// Get absolute path
$path = getcwd(); // /home/user/public_html/test/test.php.
$path = substr($path, 0, strpos($path, "public_html"));
$root = $path . "public_html/";
echo $root; // This will output /home/user/public_html/
When using angular.copy, instead of updating the reference, a new object is created and assigned to the destination(if a destination is provided). But there's more. There's this cool thing that happens after a deep copy.
Say you have a factory service which has methods which updates factory variables.
angular.module('test').factory('TestService', [function () {
var o = {
shallow: [0,1], // initial value(for demonstration)
deep: [0,2] // initial value(for demonstration)
};
o.shallowCopy = function () {
o.shallow = [1,2,3]
}
o.deepCopy = function () {
angular.copy([4,5,6], o.deep);
}
return o;
}]);
and a controller which uses this service,
angular.module('test').controller('Ctrl', ['TestService', function (TestService) {
var shallow = TestService.shallow;
var deep = TestService.deep;
console.log('****Printing initial values');
console.log(shallow);
console.log(deep);
TestService.shallowCopy();
TestService.deepCopy();
console.log('****Printing values after service method execution');
console.log(shallow);
console.log(deep);
console.log('****Printing service variables directly');
console.log(TestService.shallow);
console.log(TestService.deep);
}]);
When the above program is run the output will be as follows,
****Printing initial values
[0,1]
[0,2]
****Printing values after service method execution
[0,1]
[4,5,6]
****Printing service variables directly
[1,2,3]
[4,5,6]
Thus the cool thing about using angular copy is that, the references of the destination are reflected with the change of values, without having to re-assign the values manually, again.
After some research and modifying my code as below, the script worked for me. I just added the condition:
this.router.navigateByUrl('/RefreshComponent', { skipLocationChange: true }).then(() => {
this.router.navigate(['Your actualComponent']);
});
You should use readfile()
:
readfile("/path/to/file");
This will read the file and send it to the browser in one command. This is essentially the same as:
echo file_get_contents("/path/to/file");
except that file_get_contents()
may cause the script to crash for large files, while readfile()
won't.
You can only use -
on the numeric entries, so you can use decreasing and negate the ones you want in increasing order:
DT[order(x,-v,decreasing=TRUE),]
x y v
[1,] c 1 7
[2,] c 3 8
[3,] c 6 9
[4,] b 1 1
[5,] b 3 2
[6,] b 6 3
[7,] a 1 4
[8,] a 3 5
[9,] a 6 6
As a continuation on Matas' answer on benchmarking.
TL/DR: Exists() and Any() are equally fast.
First off: Benchmarking using Stopwatch is not precise (see series0ne's answer on a different, but similiar, topic), but it is far more precise than DateTime.
The way to get really precise readings is by using Performance Profiling. But one way to get a sense of how the two methods' performance measure up to each other is by executing both methods loads of times and then comparing the fastest execution time of each. That way, it really doesn't matter that JITing and other noise gives us bad readings (and it does), because both executions are "equally misguiding" in a sense.
static void Main(string[] args)
{
Console.WriteLine("Generating list...");
List<string> list = GenerateTestList(1000000);
var s = string.Empty;
Stopwatch sw;
Stopwatch sw2;
List<long> existsTimes = new List<long>();
List<long> anyTimes = new List<long>();
Console.WriteLine("Executing...");
for (int j = 0; j < 1000; j++)
{
sw = Stopwatch.StartNew();
if (!list.Exists(o => o == "0123456789012"))
{
sw.Stop();
existsTimes.Add(sw.ElapsedTicks);
}
}
for (int j = 0; j < 1000; j++)
{
sw2 = Stopwatch.StartNew();
if (!list.Exists(o => o == "0123456789012"))
{
sw2.Stop();
anyTimes.Add(sw2.ElapsedTicks);
}
}
long existsFastest = existsTimes.Min();
long anyFastest = anyTimes.Min();
Console.WriteLine(string.Format("Fastest Exists() execution: {0} ticks\nFastest Any() execution: {1} ticks", existsFastest.ToString(), anyFastest.ToString()));
Console.WriteLine("Benchmark finished. Press any key.");
Console.ReadKey();
}
public static List<string> GenerateTestList(int count)
{
var list = new List<string>();
for (int i = 0; i < count; i++)
{
Random r = new Random();
int it = r.Next(0, 100);
list.Add(new string('s', it));
}
return list;
}
After executing the above code 4 times (which in turn do 1 000 Exists()
and Any()
on a list with 1 000 000 elements), it's not hard to see that the methods are pretty much equally fast.
Fastest Exists() execution: 57881 ticks
Fastest Any() execution: 58272 ticks
Fastest Exists() execution: 58133 ticks
Fastest Any() execution: 58063 ticks
Fastest Exists() execution: 58482 ticks
Fastest Any() execution: 58982 ticks
Fastest Exists() execution: 57121 ticks
Fastest Any() execution: 57317 ticks
There is a slight difference, but it's too small a difference to not be explained by background noise. My guess would be that if one would do 10 000 or 100 000 Exists()
and Any()
instead, that slight difference would disappear more or less.
And for those who are looking for when you have to concatenate a char to a String rather than a String to another String as given below.
char ch = 'a';
String otherstring = "helen";
// do this
otherstring = otherstring + "" + ch;
System.out.println(otherstring);
// output : helena
SELECT @variable1 = col1, @variable2 = col2
FROM table1
A unique approach I haven't seen anyone mention!
The only way I was able to get all the customisation I wanted was to use an after_validation
callback to allow me to manipulate the error message.
Allow the validation message to be created as normal, you don't need to try and change it in the validation helper.
create an after_validation
callback that will replace that validation message in the back-end before it gets to the view.
In the after_validation
method you can do anything you want with the validation message, just like a normal string! You can even use dynamic values and insert them into the validation message.
#this could be any validation
validates_presence_of :song_rep_xyz, :message => "whatever you want - who cares - we will replace you later"
after_validation :replace_validation_message
def replace_validation_message
custom_value = #any value you would like
errors.messages[:name_of_the_attribute] = ["^This is the replacement message where
you can now add your own dynamic values!!! #{custom_value}"]
end
The after_validation method will have far greater scope than the built in rails validation helper, so you will be able to access the object you are validating like you are trying to do with object.file_name. Which does not work in the validation helper where you are trying to call it.
Note: we use the ^
to get rid of the attribute name at the beginning of the validation as @Rystraum pointed out referencing this gem
Most people here seem to be unaware that decimal considers trailing zeroes as significant for storage and printing.
So 0.1m, 0.10m and 0.100m may compare as equal, they are stored differently (as value/scale 1/1, 10/2 and 100/3, respectively), and will be printed as 0.1, 0.10 and 0.100, respectively, by ToString()
.
As such, the solutions that report "too high a precision" are actually reporting the correct precision, on decimal
's terms.
In addition, math-based solutions (like multiplying by powers of 10) will likely be very slow (decimal is ~40x slower than double for arithmetic, and you don't want to mix in floating-point either because that's likely to introduce imprecision). Similarly, casting to int
or long
as a means of truncating is error-prone (decimal
has a much greater range than either of those - it's based around a 96-bit integer).
While not elegant as such, the following will likely be one of the fastest way to get the precision (when defined as "decimal places excluding trailing zeroes"):
public static int PrecisionOf(decimal d) {
var text = d.ToString(System.Globalization.CultureInfo.InvariantCulture).TrimEnd('0');
var decpoint = text.IndexOf('.');
if (decpoint < 0)
return 0;
return text.Length - decpoint - 1;
}
The invariant culture guarantees a '.' as decimal point, trailing zeroes are trimmed, and then it's just a matter of seeing of how many positions remain after the decimal point (if there even is one).
Edit: changed return type to int
This tool xsd2wsdl part of the Apache CXF project which will generate a minimalist WSDL.
Try this code:
<form id="myform">
<!-- form elements -->
<a href="#" onclick="document.getElementById('myform').submit()">Submit</a>
</form>
But users with disabled JavaScript won't be able to submit the form, so you could add the following code:
<noscript>
<input type="submit" value="Submit form!" />
</noscript>
A BufferedReader can be opened and closed but a File is never opened, it just represents a path in the filesystem.
If I understood it right you are doing an XMLHttpRequest to a different domain than your page is on. So the browser is blocking it as it usually allows a request in the same origin for security reasons. You need to do something different when you want to do a cross-domain request. A tutorial about how to achieve that is Using CORS.
When you are using postman they are not restricted by this policy. Quoted from Cross-Origin XMLHttpRequest:
Regular web pages can use the XMLHttpRequest object to send and receive data from remote servers, but they're limited by the same origin policy. Extensions aren't so limited. An extension can talk to remote servers outside of its origin, as long as it first requests cross-origin permissions.
You may also use the querySelector() method, assuming the 'myspan' id is unique as the method returns the first element with the specified selector:
document.querySelector('#myspan').textContent = 'newtext';
It can also be done this way:
figure(xx);
set(gcf, 'name', 'Name goes here')
gcf
gets the current figure handle.
This question is especially actual because yesterday Microsoft officially announced .NET Core 1.0 release. Assuming that Mono implements most of the standard .NET libraries, the difference between Mono and .NET core can be seen through the difference between .NET Framework and .NET Core:
- APIs — .NET Core contains many of the same, but fewer, APIs as the .NET Framework, and with a different factoring (assembly names are
different; type shape differs in key cases). These differences
currently typically require changes to port source to .NET Core. .NET Core implements the .NET Standard Library API, which will grow to
include more of the .NET Framework BCL APIs over time.- Subsystems — .NET Core implements a subset of the subsystems in the .NET Framework, with the goal of a simpler implementation and
programming model. For example, Code Access Security (CAS) is not
supported, while reflection is supported.
If you need to launch something quickly, go with Mono because it is currently (June 2016) more mature product, but if you are building a long-term website, I would suggest .NET Core. It is officially supported by Microsoft and the difference in supported APIs will probably disappear soon, taking into account the effort that Microsoft puts in the development of .NET Core.
My goal is to use C#, LINQ, EF7, visual studio to create a website that can be ran/hosted in linux.
Linq and Entity framework are included in .NET Core, so you are safe to take a shot.
var response = taskwithresponse.Result;
var jsonString = response.ReadAsAsync<List<Job>>().Result;
Set the property RetainSameConnection
on the Connection Manager
to True
so that temporary table created in one Control Flow task can be retained in another task.
Here is a sample SSIS package written in SSIS 2008 R2
that illustrates using temporary tables.
Create a stored procedure that will create a temporary table named ##tmpStateProvince
and populate with few records. The sample SSIS package will first call the stored procedure and then will fetch the temporary table data to populate the records into another database table. The sample package will use the database named Sora
Use the below create stored procedure script.
USE Sora;
GO
CREATE PROCEDURE dbo.PopulateTempTable
AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID('TempDB..##tmpStateProvince') IS NOT NULL
DROP TABLE ##tmpStateProvince;
CREATE TABLE ##tmpStateProvince
(
CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
);
INSERT INTO ##tmpStateProvince
(CountryCode, StateCode, Name)
VALUES
('CA', 'AB', 'Alberta'),
('US', 'CA', 'California'),
('DE', 'HH', 'Hamburg'),
('FR', '86', 'Vienne'),
('AU', 'SA', 'South Australia'),
('VI', 'VI', 'Virgin Islands');
END
GO
Create a table named dbo.StateProvince
that will be used as the destination table to populate the records from temporary table. Use the below create table script to create the destination table.
USE Sora;
GO
CREATE TABLE dbo.StateProvince
(
StateProvinceID int IDENTITY(1,1) NOT NULL
, CountryCode nvarchar(3) NOT NULL
, StateCode nvarchar(3) NOT NULL
, Name nvarchar(30) NOT NULL
CONSTRAINT [PK_StateProvinceID] PRIMARY KEY CLUSTERED
([StateProvinceID] ASC)
) ON [PRIMARY];
GO
Create an SSIS package using Business Intelligence Development Studio (BIDS)
. Right-click on the Connection Managers tab at the bottom of the package and click New OLE DB Connection...
to create a new connection to access SQL Server 2008 R2 database.
Click New...
on Configure OLE DB Connection Manager.
Perform the following actions on the Connection Manager dialog.
Native OLE DB\SQL Server Native Client 10.0
from Provider since the package will connect to SQL Server 2008 R2 databaseMACHINENAME\INSTANCE
Use Windows Authentication
from Log on to the server section or whichever you prefer.Select or enter a database name
, the sample uses the database name Sora
.Test Connection
OK
on the Test connection succeeded message.OK
on Connection ManagerThe newly created data connection will appear on Configure OLE DB Connection Manager. Click OK
.
OLE DB connection manager KIWI\SQLSERVER2008R2.Sora
will appear under the Connection Manager tab at the bottom of the package. Right-click the connection manager and click Properties
Set the property RetainSameConnection
on the connection KIWI\SQLSERVER2008R2.Sora
to the value True
.
Right-click anywhere inside the package and then click Variables
to view the variables pane. Create the following variables.
A new variable named PopulateTempTable
of data type String
in the package scope SO_5631010
and set the variable with the value EXEC dbo.PopulateTempTable
.
A new variable named FetchTempData
of data type String
in the package scope SO_5631010
and set the variable with the value SELECT CountryCode, StateCode, Name FROM ##tmpStateProvince
Drag and drop an Execute SQL Task
on to the Control Flow tab. Double-click the Execute SQL Task to view the Execute SQL Task Editor.
On the General
page of the Execute SQL Task Editor, perform the following actions.
Create and populate temp table
OLE DB
KIWI\SQLSERVER2008R2.Sora
Variable
from SQLSourceTypeUser::PopulateTempTable
from SourceVariableOK
Drag and drop a Data Flow Task
onto the Control Flow tab. Rename the Data Flow Task as Transfer temp data to database table
. Connect the green arrow from the Execute SQL Task to the Data Flow Task.
Double-click the Data Flow Task
to switch to Data Flow tab. Drag and drop an OLE DB Source
onto the Data Flow tab. Double-click OLE DB Source to view the OLE DB Source Editor.
On the Connection Manager
page of the OLE DB Source Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerSQL command from variable
from Data access modeUser::FetchTempData
from Variable nameColumns
pageClicking Columns
page on OLE DB Source Editor will display the following error because the table ##tmpStateProvince
specified in the source command variable does not exist and SSIS is unable to read the column definition.
To fix the error, execute the statement EXEC dbo.PopulateTempTable
using SQL Server Management Studio (SSMS) on the database Sora
so that the stored procedure will create the temporary table. After executing the stored procedure, click Columns
page on OLE DB Source Editor, you will see the column information. Click OK
.
Drag and drop OLE DB Destination
onto the Data Flow tab. Connect the green arrow from OLE DB Source to OLE DB Destination. Double-click OLE DB Destination
to open OLE DB Destination Editor.
On the Connection Manager
page of the OLE DB Destination Editor, perform the following actions.
KIWI\SQLSERVER2008R2.Sora
from OLE DB Connection ManagerTable or view - fast load
from Data access mode[dbo].[StateProvince]
from Name of the table or the viewMappings
pageClick Mappings
page on the OLE DB Destination Editor would automatically map the columns if the input and output column names are same. Click OK
. Column StateProvinceID
does not have a matching input column and it is defined as an IDENTITY
column in database. Hence, no mapping is required.
Data Flow tab should look something like this after configuring all the components.
Click the OLE DB Source
on Data Flow tab and press F4 to view Properties
. Set the property ValidateExternalMetadata
to False so that SSIS would not try to check for the existence of the temporary table during validation phase of the package execution.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the number of rows in the table. It should be empty before executing the package.
Execute the package. Control Flow shows successful execution.
In Data Flow tab, you will notice that the package successfully processed 6 rows. The stored procedure created early in this posted inserted 6 rows into the temporary table.
Execute the query select * from dbo.StateProvince
in the SQL Server Management Studio (SSMS) to find the 6 rows successfully inserted into the table. The data should match with rows founds in the stored procedure.
The above example illustrated how to create and use temporary table within a package.
A handle is a pointer or index with no visible type attached to it. Usually you see something like:
typedef void* HANDLE;
HANDLE myHandleToSomething = CreateSomething();
So in your code you just pass HANDLE around as an opaque value.
In the code that uses the object, it casts the pointer to a real structure type and uses it:
int doSomething(HANDLE s, int a, int b) {
Something* something = reinterpret_cast<Something*>(s);
return something->doit(a, b);
}
Or it uses it as an index to an array/vector:
int doSomething(HANDLE s, int a, int b) {
int index = (int)s;
try {
Something& something = vecSomething[index];
return something.doit(a, b);
} catch (boundscheck& e) {
throw SomethingException(INVALID_HANDLE);
}
}
Not a direct answer to your question, but you can get the most commonly used utilities from http://www.mingw.org/ without having to jump through the hoops with that horrible Cygwin installer.
Here is a slightly more informative link http://sourceforge.net/apps/mediawiki/cobcurses/index.php?title=Install-MSYS.
In Kotlin, you can concatenate using String interpolation/templates:
val a = "Hello"
val b = "World"
val c = "$a $b"
The output will be: Hello World
StringBuilder
for String templates which is the most efficient approach in terms of memory because +
/plus()
creates new String objects.Or you can concatenate using the StringBuilder
explicitly.
val a = "Hello"
val b = "World"
val sb = StringBuilder()
sb.append(a).append(b)
val c = sb.toString()
print(c)
The output will be: HelloWorld
Or you can concatenate using the +
/ plus()
operator:
val a = "Hello"
val b = "World"
val c = a + b // same as calling operator function a.plus(b)
print(c)
The output will be: HelloWorld
You can certainly use putty (puttygen.exe) to do that.
Or you can get Cygwin to use the utilities you just described.
$xml="l" . PHP_EOL;
$xml.="vv";
echo $xml;
Will echo:
l
vv
Documentation on PHP_EOL.
For calculating days in two dates difference, can be done like below:
import datetime
import math
issuedate = datetime(2019,5,9) #calculate the issue datetime
current_date = datetime.datetime.now() #calculate the current datetime
diff_date = current_date - issuedate #//calculate the date difference with time also
amount = fine #you want change
if diff_date.total_seconds() > 0.0: #its matching your condition
days = math.ceil(diff_date.total_seconds()/86400) #calculate days (in
one day 86400 seconds)
deductable_amount = round(amount,2)*days #calclulated fine for all days
Becuase if one second is more with the due date then we have to charge
Check you index.html
file. If you use external resources, that not available when you run application then you can get this error.
In my case I forgot to delete link on debugger script (weinre).
<script src="http://192.168.0.102:8080/target/target-script-min.js#anonymous"></script>
So application worked on emulator because http://192.168.0.102:8080/
was on my localhost and available for emulator.
But when I setup application on mobile phone I had same error, because 192.168.0.102 was not available from mobile network.
If you want to export just single table, or subset of data from some table, you can do it directly from result window:
According to http://caniuse.com/#feat=flexbox:
"IE10 and IE11 default values for flex
are 0 0 auto
rather than 0 1 auto
, as per the draft spec, as of September 2013"
So in plain words, if somewhere in your CSS you have something like this: flex:1
, that is not translated the same way in all browsers. Try changing it to 1 0 0
and I believe you will immediately see that it -kinda- works.
The problem is that this solution will probably mess up firefox, but then you can use some hacks to target only Mozilla and change it back:
@-moz-document url-prefix() {
#flexible-content{
flex: 1;
}
}
Since flexbox
is a W3C Candidate and not official, browsers tend to give different results, but I guess that will change in the immediate future.
If someone has a better answer I would like to know!