The correct way of referring to a method parameter is like this:
//Example to define how to do :
DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("FirstName");
dt.Columns.Add("LastName");
dt.Columns.Add("Address");
dt.Columns.Add("City");
// The table structure is:
//ID FirstName LastName Address City
//Now we want to add a PhoneNo column after the LastName column. For this we use the
//SetOrdinal function, as iin:
dt.Columns.Add("PhoneNo").SetOrdinal(3);
//3 is the position number and positions start from 0.`enter code here`
//Now the table structure will be:
// ID FirstName LastName PhoneNo Address City
How does a return statement differ from break statement?. Return statement exits current method execution and returns value to calling method. Break is used to exit from any loop.
If I have to exit an if condition, which one should I prefer, return or break?
To exit from method execution use return. to exit from any loop you can use either break or return based on your requirement.
Try this:
cc=is.na(DF$y)
m=which(cc==c("TRUE"))
DF=DF[-m,]
If you are required to pass the same properties to each page, then creating a base viewmodel that is used by all your view models would be wise. Your layout page can then take this base model.
If there is logic required behind this data, then this should be put into a base controller that is used by all your controllers.
There are a lot of things you could do, the important approach being not to repeat the same code in multiple places.
Edit: Update from comments below
Here is a simple example to demonstrate the concept.
Create a base view model that all view models will inherit from.
public abstract class ViewModelBase
{
public string Name { get; set; }
}
public class HomeViewModel : ViewModelBase
{
}
Your layout page can take this as it's model.
@model ViewModelBase
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Test</title>
</head>
<body>
<header>
Hello @Model.Name
</header>
<div>
@this.RenderBody()
</div>
</body>
</html>
Finally set the data in the action method.
public class HomeController
{
public ActionResult Index()
{
return this.View(new HomeViewModel { Name = "Bacon" });
}
}
If you are missing just one import (the class name has red underline), click and hover the mouse over it, and a blue suggested import statement will appear. If you hit, Alt + Enter at this point, the import will be included in the file and the red underline should disappear.
You can use strtotime
, which is great in this kind of situations :
$timestamp = strtotime('-1 month');
var_dump(date('Y-m', $timestamp));
Will get you :
string '2009-11' (length=7)
Here's a simple way to test it:
public class OperatorTest {
public static void main(String[] args) {
boolean a = false;
a &= b();
}
private static boolean b() {
System.out.println("b() was called");
return true;
}
}
The output is b() was called
, therefore the right-hand operand is evaluated.
So, as already mentioned by others, a &= b
is the same as a = a & b
.
If it's a class that you can modify, you could declare a class variable static java.util.concurrent.atomic.AtomicInteger nextInstanceId
. (You'll have to give it an initial value in the obvious way.) Then declare an instance variable int instanceId = nextInstanceId.getAndIncrement()
.
tree $DIR_PATH | tail -1
Sample Output:
5309 directories, 2122 files
Note: You should not use the com.android.support and com.google.android.material dependencies in your app at the same time.
Add Material Components for Android in your build.gradle(app) file
dependencies {
// ...
implementation 'com.google.android.material:material:1.0.0-beta01'
// ...
}
If your app currently depends on the original Design Support Library, you can make use of the Refactor to AndroidX… option provided by Android Studio. Doing so will update your app’s dependencies and code to use the newly packaged androidx and com.google.android.material libraries.
If you don’t want to switch over to the new androidx and com.google.android.material packages yet, you can use Material Components via the com.android.support:design:28.0.0-alpha3 dependency.
The .ready
function is used to insert the attribute once the page has finished loading.
$(document).ready(function() {
$("class name or id a.your class name").attr({"target" : "_blank"})
})
Good morning.
I was have the same problem with upload of multiple images. Solution was more simple than I had imagined: include [] in the name field.
<input type="file" name="files[]" multiple>
I did not make any modification on FormData.
In my opinion Builder pattern is used when you want to create an object from a bunch of other objects and creation of part needs to be independent of the object you want to create. It helps to hide the creation of part from the client to make builder and client independent. It is used for complex objects creation (objects which may consists of complicated properties)
While factory pattern specifies that you want to create objects of a common family and you want it to be cerated at once. It is used for simpler objects.
Had the same problem with base64. For anyone in the future with the same problem:
url = "data:image/png;base64,iVBORw0KGgoAAAAAAAAyCAYAAAAUYybjAAAgAElE...";
This would work executed from console, but not from within a script:
$img.css("background-image", "url('" + url + "')");
But after playing with it a bit, I came up with this:
var img = new Image();
img.src = url;
$img.css("background-image", "url('" + img.src + "')");
No idea why it works with a proxy image, but it does. Tested on Firefox Dev 37 and Chrome 40.
Hope it helps someone.
EDIT
Investigated a little bit further. It appears that sometimes base64 encoding (at least in my case) breaks with CSS because of line breaks present in the encoded value (in my case value was generated dynamically by ActionScript).
Simply using e.g.:
$img.css("background-image", "url('" + url.replace(/(\r\n|\n|\r)/gm, "") + "')");
works too, and even seems to be faster by a few ms than using a proxy image.
ALTER TABLE my_table ADD COLUMN new_field TinyInt(1) DEFAULT 0;
img {max-width:100%;}
is one way of doing this. Just add it to your CSS code.
Or this in windows powershell
$env:RANDFILE=".rnd"
foo.GetColumnValues(dm.mainColumn, typeof(string))
Alternatively, you could use a generic method:
public void GetColumnValues<T>(object mainColumn)
{
GetColumnValues(mainColumn, typeof(T));
}
and you could then use it like:
foo.GetColumnValues<string>(dm.mainColumn);
Maximum number of connections are impacted by certain limits on both client & server sides, albeit a little differently.
On the client side:
Increase the ephermal port range, and decrease the tcp_fin_timeout
To find out the default values:
sysctl net.ipv4.ip_local_port_range
sysctl net.ipv4.tcp_fin_timeout
The ephermal port range defines the maximum number of outbound sockets a host can create from a particular I.P. address. The fin_timeout
defines the minimum time these sockets will stay in TIME_WAIT
state (unusable after being used once).
Usual system defaults are:
net.ipv4.ip_local_port_range = 32768 61000
net.ipv4.tcp_fin_timeout = 60
This basically means your system cannot consistently guarantee more than (61000 - 32768) / 60 = 470
sockets per second. If you are not happy with that, you could begin with increasing the port_range
. Setting the range to 15000 61000
is pretty common these days. You could further increase the availability by decreasing the fin_timeout
. Suppose you do both, you should see over 1500 outbound connections per second, more readily.
To change the values:
sysctl net.ipv4.ip_local_port_range="15000 61000"
sysctl net.ipv4.tcp_fin_timeout=30
The above should not be interpreted as the factors impacting system capability for making outbound connections per second. But rather these factors affect system's ability to handle concurrent connections in a sustainable manner for large periods of "activity."
Default Sysctl values on a typical Linux box for tcp_tw_recycle
& tcp_tw_reuse
would be
net.ipv4.tcp_tw_recycle=0
net.ipv4.tcp_tw_reuse=0
These do not allow a connection from a "used" socket (in wait state) and force the sockets to last the complete time_wait
cycle. I recommend setting:
sysctl net.ipv4.tcp_tw_recycle=1
sysctl net.ipv4.tcp_tw_reuse=1
This allows fast cycling of sockets in time_wait
state and re-using them. But before you do this change make sure that this does not conflict with the protocols that you would use for the application that needs these sockets. Make sure to read post "Coping with the TCP TIME-WAIT" from Vincent Bernat to understand the implications. The net.ipv4.tcp_tw_recycle
option is quite problematic for public-facing servers as it won’t handle connections from two different computers behind the same NAT device, which is a problem hard to detect and waiting to bite you. Note that net.ipv4.tcp_tw_recycle
has been removed from Linux 4.12.
On the Server Side:
The net.core.somaxconn
value has an important role. It limits the maximum number of requests queued to a listen socket. If you are sure of your server application's capability, bump it up from default 128 to something like 128 to 1024. Now you can take advantage of this increase by modifying the listen backlog variable in your application's listen call, to an equal or higher integer.
sysctl net.core.somaxconn=1024
txqueuelen
parameter of your ethernet cards also have a role to play. Default values are 1000, so bump them up to 5000 or even more if your system can handle it.
ifconfig eth0 txqueuelen 5000
echo "/sbin/ifconfig eth0 txqueuelen 5000" >> /etc/rc.local
Similarly bump up the values for net.core.netdev_max_backlog
and net.ipv4.tcp_max_syn_backlog
. Their default values are 1000 and 1024 respectively.
sysctl net.core.netdev_max_backlog=2000
sysctl net.ipv4.tcp_max_syn_backlog=2048
Now remember to start both your client and server side applications by increasing the FD ulimts, in the shell.
Besides the above one more popular technique used by programmers is to reduce the number of tcp write calls. My own preference is to use a buffer wherein I push the data I wish to send to the client, and then at appropriate points I write out the buffered data into the actual socket. This technique allows me to use large data packets, reduce fragmentation, reduces my CPU utilization both in the user land and at kernel-level.
Many of the answers above are opaque. In my opinion the author of this question simply wants to know where session variables are stored by default. According to this:https://canvas.seattlecentral.edu/courses/937693/pages/10-advanced-php-sessions they are simply stored on the server by default. Hopefully, others will find this contribution meaningful.
Mockito matchers are static methods and calls to those methods, which stand in for arguments during calls to when
and verify
.
Hamcrest matchers (archived version) (or Hamcrest-style matchers) are stateless, general-purpose object instances that implement Matcher<T>
and expose a method matches(T)
that returns true if the object matches the Matcher's criteria. They are intended to be free of side effects, and are generally used in assertions such as the one below.
/* Mockito */ verify(foo).setPowerLevel(gt(9000));
/* Hamcrest */ assertThat(foo.getPowerLevel(), is(greaterThan(9000)));
Mockito matchers exist, separate from Hamcrest-style matchers, so that descriptions of matching expressions fit directly into method invocations: Mockito matchers return T
where Hamcrest matcher methods return Matcher objects (of type Matcher<T>
).
Mockito matchers are invoked through static methods such as eq
, any
, gt
, and startsWith
on org.mockito.Matchers
and org.mockito.AdditionalMatchers
. There are also adapters, which have changed across Mockito versions:
Matchers
featured some calls (such as intThat
or argThat
) are Mockito matchers that directly accept Hamcrest matchers as parameters. ArgumentMatcher<T>
extended org.hamcrest.Matcher<T>
, which was used in the internal Hamcrest representation and was a Hamcrest matcher base class instead of any sort of Mockito matcher.Matchers
calls phrased as intThat
or argThat
wrap ArgumentMatcher<T>
objects that no longer implement org.hamcrest.Matcher<T>
but are used in similar ways. Hamcrest adapters such as argThat
and intThat
are still available, but have moved to MockitoHamcrest
instead.Regardless of whether the matchers are Hamcrest or simply Hamcrest-style, they can be adapted like so:
/* Mockito matcher intThat adapting Hamcrest-style matcher is(greaterThan(...)) */
verify(foo).setPowerLevel(intThat(is(greaterThan(9000))));
In the above statement: foo.setPowerLevel
is a method that accepts an int
. is(greaterThan(9000))
returns a Matcher<Integer>
, which wouldn't work as a setPowerLevel
argument. The Mockito matcher intThat
wraps that Hamcrest-style Matcher and returns an int
so it can appear as an argument; Mockito matchers like gt(9000)
would wrap that entire expression into a single call, as in the first line of example code.
when(foo.quux(3, 5)).thenReturn(true);
When not using argument matchers, Mockito records your argument values and compares them with their equals
methods.
when(foo.quux(eq(3), eq(5))).thenReturn(true); // same as above
when(foo.quux(anyInt(), gt(5))).thenReturn(true); // this one's different
When you call a matcher like any
or gt
(greater than), Mockito stores a matcher object that causes Mockito to skip that equality check and apply your match of choice. In the case of argumentCaptor.capture()
it stores a matcher that saves its argument instead for later inspection.
Matchers return dummy values such as zero, empty collections, or null
. Mockito tries to return a safe, appropriate dummy value, like 0 for anyInt()
or any(Integer.class)
or an empty List<String>
for anyListOf(String.class)
. Because of type erasure, though, Mockito lacks type information to return any value but null
for any()
or argThat(...)
, which can cause a NullPointerException if trying to "auto-unbox" a null
primitive value.
Matchers like eq
and gt
take parameter values; ideally, these values should be computed before the stubbing/verification starts. Calling a mock in the middle of mocking another call can interfere with stubbing.
Matcher methods can't be used as return values; there is no way to phrase thenReturn(anyInt())
or thenReturn(any(Foo.class))
in Mockito, for instance. Mockito needs to know exactly which instance to return in stubbing calls, and will not choose an arbitrary return value for you.
Matchers are stored (as Hamcrest-style object matchers) in a stack contained in a class called ArgumentMatcherStorage. MockitoCore and Matchers each own a ThreadSafeMockingProgress instance, which statically contains a ThreadLocal holding MockingProgress instances. It's this MockingProgressImpl that holds a concrete ArgumentMatcherStorageImpl. Consequently, mock and matcher state is static but thread-scoped consistently between the Mockito and Matchers classes.
Most matcher calls only add to this stack, with an exception for matchers like and
, or
, and not
. This perfectly corresponds to (and relies on) the evaluation order of Java, which evaluates arguments left-to-right before invoking a method:
when(foo.quux(anyInt(), and(gt(10), lt(20)))).thenReturn(true);
[6] [5] [1] [4] [2] [3]
This will:
anyInt()
to the stack.gt(10)
to the stack.lt(20)
to the stack.gt(10)
and lt(20)
and add and(gt(10), lt(20))
.foo.quux(0, 0)
, which (unless otherwise stubbed) returns the default value false
. Internally Mockito marks quux(int, int)
as the most recent call.when(false)
, which discards its argument and prepares to stub method quux(int, int)
identified in 5. The only two valid states are with stack length 0 (equality) or 2 (matchers), and there are two matchers on the stack (steps 1 and 4), so Mockito stubs the method with an any()
matcher for its first argument and and(gt(10), lt(20))
for its second argument and clears the stack.This demonstrates a few rules:
Mockito can't tell the difference between quux(anyInt(), 0)
and quux(0, anyInt())
. They both look like a call to quux(0, 0)
with one int matcher on the stack. Consequently, if you use one matcher, you have to match all arguments.
Call order isn't just important, it's what makes this all work. Extracting matchers to variables generally doesn't work, because it usually changes the call order. Extracting matchers to methods, however, works great.
int between10And20 = and(gt(10), lt(20));
/* BAD */ when(foo.quux(anyInt(), between10And20)).thenReturn(true);
// Mockito sees the stack as the opposite: and(gt(10), lt(20)), anyInt().
public static int anyIntBetween10And20() { return and(gt(10), lt(20)); }
/* OK */ when(foo.quux(anyInt(), anyIntBetween10And20())).thenReturn(true);
// The helper method calls the matcher methods in the right order.
The stack changes often enough that Mockito can't police it very carefully. It can only check the stack when you interact with Mockito or a mock, and has to accept matchers without knowing whether they're used immediately or abandoned accidentally. In theory, the stack should always be empty outside of a call to when
or verify
, but Mockito can't check that automatically.
You can check manually with Mockito.validateMockitoUsage()
.
In a call to when
, Mockito actually calls the method in question, which will throw an exception if you've stubbed the method to throw an exception (or require non-zero or non-null values).
doReturn
and doAnswer
(etc) do not invoke the actual method and are often a useful alternative.
If you had called a mock method in the middle of stubbing (e.g. to calculate an answer for an eq
matcher), Mockito would check the stack length against that call instead, and likely fail.
If you try to do something bad, like stubbing/verifying a final method, Mockito will call the real method and also leave extra matchers on the stack. The final
method call may not throw an exception, but you may get an InvalidUseOfMatchersException from the stray matchers when you next interact with a mock.
InvalidUseOfMatchersException:
Check that every single argument has exactly one matcher call, if you use matchers at all, and that you haven't used a matcher outside of a when
or verify
call. Matchers should never be used as stubbed return values or fields/variables.
Check that you're not calling a mock as a part of providing a matcher argument.
Check that you're not trying to stub/verify a final method with a matcher. It's a great way to leave a matcher on the stack, and unless your final method throws an exception, this might be the only time you realize the method you're mocking is final.
NullPointerException with primitive arguments: (Integer) any()
returns null while any(Integer.class)
returns 0; this can cause a NullPointerException
if you're expecting an int
instead of an Integer. In any case, prefer anyInt()
, which will return zero and also skip the auto-boxing step.
NullPointerException or other exceptions: Calls to when(foo.bar(any())).thenReturn(baz)
will actually call foo.bar(null)
, which you might have stubbed to throw an exception when receiving a null argument. Switching to doReturn(baz).when(foo).bar(any())
skips the stubbed behavior.
Use MockitoJUnitRunner, or explicitly call validateMockitoUsage
in your tearDown
or @After
method (which the runner would do for you automatically). This will help determine whether you've misused matchers.
For debugging purposes, add calls to validateMockitoUsage
in your code directly. This will throw if you have anything on the stack, which is a good warning of a bad symptom.
Generally, Postman used for debugging and used in the development phase. But in case you want to block it even from postman try this.
const referrer_domain = "[enter-the-domain-name-of-the-referrer]"
//check for the referrer domain
app.all('/*', function(req, res, next) {
if(req.headers.referer.indexOf(referrer_domain) == -1){
res.send('Invalid Request')
}
next();
});
For my case of displaying Unicode character from message bundles, I don't need to apply "JSP page encoding" section to display Unicode on my jsp page. All I need is "CharsetFilter" section.
I think the easiest way is through the collections module.
import collections
FinanceCtaCteM = collections.namedtuple('FinanceCtaCte', 'forma_pago doc_pago get_total')
def get_total(): return 98989898
financtacteobj = FinanceCtaCteM(forma_pago='CONTADO', doc_pago='EFECTIVO',
get_total=get_total)
print financtacteobj.get_total()
print financtacteobj.forma_pago
print financtacteobj.doc_pago
Using Google Finance as an example to retrieve the ticker's last close price and the updated date & time. You may visit YouTiming.com for the run-time execution.
The service:
MyApp.service('getData',
[
'$http',
function($http) {
this.getQuote = function(ticker) {
var _url = 'https://www.google.com/finance/info?q=' + ticker;
return $http.get(_url); //Simply return the promise to the caller
};
}
]
);
The controller:
MyApp.controller('StockREST',
[
'$scope',
'getData', //<-- the service above
function($scope, getData) {
var getQuote = function(symbol) {
getData.getQuote(symbol)
.success(function(response, status, headers, config) {
var _data = response.substring(4, response.length);
var _json = JSON.parse(_data);
$scope.stockQuoteData = _json[0];
// ticker: $scope.stockQuoteData.t
// last price: $scope.stockQuoteData.l
// last updated time: $scope.stockQuoteData.ltt, such as "7:59PM EDT"
// last updated date & time: $scope.stockQuoteData.lt, such as "Sep 29, 7:59PM EDT"
})
.error(function(response, status, headers, config) {
console.log('@@@ Error: in retrieving Google Finance stock quote, ticker = ' + symbol);
});
};
getQuote($scope.ticker.tick.name); //Initialize
$scope.getQuote = getQuote; //as defined above
}
]
);
The HTML:
<span>{{stockQuoteData.l}}, {{stockQuoteData.lt}}</span>
At the top of YouTiming.com home page, I have placed the notes for how to disable the CORS policy on Chrome and Safari.
Hopefully, it will work for you.
startActivityForResult( intent, 1 , ActivityOptions.makeCustomAnimation(getActivity(),R.anim.slide_out_bottom,R.anim.slide_in_bottom).toBundle());
use below code snip
Task.WaitAll(Task.Run(async () => await service.myAsyncMethod()));
Because I deal with both relative and absolute URLs, I updated veritas's solution like the code below.
You can try yourself here: https://ideone.com/PvpZ4J
function removeQueryStringFromUrl($url) {
if (substr($url,0,4) == "http") {
$urlPartsArray = parse_url($url);
$outputUrl = $urlPartsArray['scheme'] . '://' . $urlPartsArray['host'] . ( isset($urlPartsArray['path']) ? $urlPartsArray['path'] : '' );
} else {
$URLexploded = explode("?", $url, 2);
$outputUrl = $URLexploded[0];
}
return $outputUrl;
}
doSome("task")must be returning a promise object , and that promise always have a then function .So your code is just like this
promise.then(function(env) {
// logic
});
and you know this is just an ordinary call to member function .
Here's a good tutorial on Powershell params:
PowerShell ABC's - P is for Parameters
Basically, you should use a param
statement on the first line of the script
param([type]$p1 = , [type]$p2 = , ...)
or use the $args built-in variable, which is auto-populated with all of the args.
Might be irrelevant for OP's Q, but I've tried all openssl statements with all the different flags, while trying to connect with PHP \SoapClient(...)
and after 3 days I finally found a solution that worked for me.
$ cd path/to/certificate/
$ openssl pkcs12 -in personal_certificate.pfx -out public_key.pem -clcerts
First you have to enter YOUR_CERT_PASSWORD
once, then DIFFERENT_PASSWORD!
twice. The latter will possibly be available to everyone with access to code.
<?php
$wsdlUrl = "https://example.com/service.svc?singlewsdl";
$publicKey = "rel/path/to/certificate/public_key.pem";
$password = "DIFFERENT_PASSWORD!";
$params = [
'local_cert' => $publicKey,
'passphrase' => $password,
'trace' => 1,
'exceptions' => 0
];
$soapClient = new \SoapClient($wsdlUrl, $params);
var_dump($soapClient->__getFunctions());
As already mentioned, creating your own aggregate function is the right thing to do. Here is my concatenation aggregate function (you can find details in French):
CREATE OR REPLACE FUNCTION concat2(text, text) RETURNS text AS '
SELECT CASE WHEN $1 IS NULL OR $1 = \'\' THEN $2
WHEN $2 IS NULL OR $2 = \'\' THEN $1
ELSE $1 || \' / \' || $2
END;
'
LANGUAGE SQL;
CREATE AGGREGATE concatenate (
sfunc = concat2,
basetype = text,
stype = text,
initcond = ''
);
And then use it as:
SELECT company_id, concatenate(employee) AS employees FROM ...
Use Process.WaitForExit
? Or subscribe to the Process.Exited
event if you don't want to block? If that doesn't do what you want, please give us more information about your requirements.
s=input("Enter any character:")
if s.isalnum():
print("Alpha Numeric Character")
if s.isalpha():
print("Alphabet character")
if s.islower():
print("Lower case alphabet character")
else:
print("Upper case alphabet character")
else:
print("it is a digit")
elif s.isspace():
print("It is space character")
else:
print("Non Space Special Character")
The current cookie specification is RFC 6265, which replaces RFC 2109 and RFC 2965 (both RFCs are now marked as "Historic") and formalizes the syntax for real-world usages of cookies. It clearly states:
- Introduction
...
For historical reasons, cookies contain a number of security and privacy infelicities. For example, a server can indicate that a given cookie is intended for "secure" connections, but the Secure attribute does not provide integrity in the presence of an active network attacker. Similarly, cookies for a given host are shared across all the ports on that host, even though the usual "same-origin policy" used by web browsers isolates content retrieved via different ports.
And also:
8.5. Weak Confidentiality
Cookies do not provide isolation by port. If a cookie is readable by a service running on one port, the cookie is also readable by a service running on another port of the same server. If a cookie is writable by a service on one port, the cookie is also writable by a service running on another port of the same server. For this reason, servers SHOULD NOT both run mutually distrusting services on different ports of the same host and use cookies to store security sensitive information.
By value, what worked for me with jQuery 1.7 was the below code, try this:
$('#id option[value=theOptionValue]').prop('selected', 'selected').change();
Yes, it's working:
<select name="somename" required>
<option value="">Please select</option>
<option value="one">One</option>
</select>
you have to keep first option blank.
Compact solution (provided you don't need other environment variables):
call('sqsub -np {} /homedir/anotherdir/executable'.format(var1).split(),
env=dict(LD_LIBRARY_PATH=my_path))
Using the env command line tool:
call('env LD_LIBRARY_PATH=my_path sqsub -np {} /homedir/anotherdir/executable'.format(var1).split())
Just remove the white space from the string before you split it.
mylist = my_string.replace(' ','').split(',')
Rather than going into the AndroidManifest, you could just do this:
screenOrientation = getResources().getConfiguration().orientation;
getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LOCKED);
... AsyncTask
screenOrientation = getResources().getConfiguration().orientation;
@Override
protected void onPostExecute(String things) {
context.setRequestedOrientation(PlayListFragment.screenOrientation);
or
context.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR);
}
The only drawback here is that it requires API level 18 or higher. So basically this is the tip of the spear.
This is what worked for me:
KeyStore keyStore = KeyStore.getInstance("PKCS12");
FileInputStream instream = new FileInputStream(new File("client-p12-keystore.p12"));
try {
keyStore.load(instream, "password".toCharArray());
} finally {
instream.close();
}
// Trust own CA and all self-signed certs
SSLContext sslcontext = SSLContexts.custom()
.loadKeyMaterial(keyStore, "password".toCharArray())
//.loadTrustMaterial(trustStore, new TrustSelfSignedStrategy())
.build();
// Allow TLSv1 protocol only
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(
sslcontext,
new String[] { "TLSv1" },
null,
SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER); //TODO
CloseableHttpClient httpclient = HttpClients.custom()
.setHostnameVerifier(SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER) //TODO
.setSSLSocketFactory(sslsf)
.build();
try {
HttpGet httpget = new HttpGet("https://localhost:8443/secure/index");
System.out.println("executing request" + httpget.getRequestLine());
CloseableHttpResponse response = httpclient.execute(httpget);
try {
HttpEntity entity = response.getEntity();
System.out.println("----------------------------------------");
System.out.println(response.getStatusLine());
if (entity != null) {
System.out.println("Response content length: " + entity.getContentLength());
}
EntityUtils.consume(entity);
} finally {
response.close();
}
} finally {
httpclient.close();
}
}
This code is a modified version of http://hc.apache.org/httpcomponents-client-4.3.x/httpclient/examples/org/apache/http/examples/client/ClientCustomSSL.java
I setup an ssh alias using a custom IdentityFile
and rewrote the origin to use my custom me-github
hostname.
#when prompted enter `id_rsa_user1` as filename
ssh-keygen -t rsa
# ~/.ssh/config
Host user1-github
HostName github.com
Port 22
User git
IdentityFile ~/.ssh/id_rsa_user1
#check original remote origin url
git remote -v
origin [email protected]:user1/my-repo.git
#change it to use your custom `user1-github` hostname
git remote rm origin
git remote add origin git@user1-github:user1/my-repo.git
Try something like this:
Dim windowsShell
Dim regValue
Set windowsShell = CreateObject("WScript.Shell")
regValue = windowsShell.RegRead("someRegKey")
Default sorting is ascending, you need to add the keyword DESC to both your orders:
ORDER BY article_rating DESC, article_time DESC
Say you have defined your class like this:
@Data
@AllArgsConstructor(staticName = "of")
private class Pair<P,Q> {
public P first;
public Q second;
}
So when you will need to create a new instance, it will need to take the parameters and you will provide it like this as defined in the annotation.
Pair<Integer, String> pair = Pair.of(menuItemId, category);
If you define it like this, you will get the error asked for.
Pair<Integer, String> pair = new Pair(menuItemId, category);
I like the answer of Anacrust, though, by the fact "console.log" is executed twice, I would like to do a small update for src/mylib.js
:
let test = {
foo () { return 'foo' },
bar () { return 'bar' },
baz () { return 'baz' }
}
export default test
All other code remains the same...
You're right using div.container-fluid
and you also need a div.row
child. Then, the content must be placed inside without any grid columns.
If you have a look at the docs you can find this text:
- Rows must be placed within a .container (fixed-width) or .container-fluid (full-width) for proper alignment and padding.
- Use rows to create horizontal groups of columns.
Not using grid columns it's ok as stated here:
- Content should be placed within columns, and only columns may be immediate children of rows.
And looking at this example, you can read this text:
Full width, single column: No grid classes are necessary for full-width elements.
Here's a live example showing some elements using the correct layout. This way you don't need any custom CSS or hack.
jQuery takes care of this for you. The first argument to your .each()
callback function is the index of the current iteration of the loop. The second being the current matched DOM element So:
$('#list option').each(function(index, element){
alert("Iteration: " + index)
});
You can use substr
for example:
new Date().getFullYear().toString().substr(-2)
And here's a way to do it with PrototypeJS:
Event.observe(window, 'load', function(event) {
// Do stuff
});
You can use the os Module:
var os = require("os");
os.hostname();
See http://nodejs.org/docs/latest/api/os.html#os_os_hostname
Caveats:
if you can work with the IP address -- Machines may have several Network Cards and unless you specify it node will listen on all of them, so you don't know on which NIC the request came in, before it comes in.
Hostname is a DNS matter -- Don't forget that several DNS aliases can point to the same machine.
(Update: August 2011)
As geofflane mentions in his answer, Java 7 now support named groups.
tchrist points out in the comment that the support is limited.
He details the limitations in his great answer "Java Regex Helper"
Java 7 regex named group support was presented back in September 2010 in Oracle's blog.
In the official release of Java 7, the constructs to support the named capturing group are:
(?<name>capturing text)
to define a named group "name"\k<name>
to backreference a named group "name"${name}
to reference to captured group in Matcher's replacement stringMatcher.group(String name)
to return the captured input subsequence by the given "named group".
Other alternatives for pre-Java 7 were:
(Original answer: Jan 2009, with the next two links now broken)
You can not refer to named group, unless you code your own version of Regex...
That is precisely what Gorbush2 did in this thread.
(limited implementation, as pointed out again by tchrist, as it looks only for ASCII identifiers. tchrist details the limitation as:
only being able to have one named group per same name (which you don’t always have control over!) and not being able to use them for in-regex recursion.
Note: You can find true regex recursion examples in Perl and PCRE regexes, as mentioned in Regexp Power, PCRE specs and Matching Strings with Balanced Parentheses slide)
Example:
String:
"TEST 123"
RegExp:
"(?<login>\\w+) (?<id>\\d+)"
Access
matcher.group(1) ==> TEST
matcher.group("login") ==> TEST
matcher.name(1) ==> login
Replace
matcher.replaceAll("aaaaa_$1_sssss_$2____") ==> aaaaa_TEST_sssss_123____
matcher.replaceAll("aaaaa_${login}_sssss_${id}____") ==> aaaaa_TEST_sssss_123____
(extract from the implementation)
public final class Pattern
implements java.io.Serializable
{
[...]
/**
* Parses a group and returns the head node of a set of nodes that process
* the group. Sometimes a double return system is used where the tail is
* returned in root.
*/
private Node group0() {
boolean capturingGroup = false;
Node head = null;
Node tail = null;
int save = flags;
root = null;
int ch = next();
if (ch == '?') {
ch = skip();
switch (ch) {
case '<': // (?<xxx) look behind or group name
ch = read();
int start = cursor;
[...]
// test forGroupName
int startChar = ch;
while(ASCII.isWord(ch) && ch != '>') ch=read();
if(ch == '>'){
// valid group name
int len = cursor-start;
int[] newtemp = new int[2*(len) + 2];
//System.arraycopy(temp, start, newtemp, 0, len);
StringBuilder name = new StringBuilder();
for(int i = start; i< cursor; i++){
name.append((char)temp[i-1]);
}
// create Named group
head = createGroup(false);
((GroupTail)root).name = name.toString();
capturingGroup = true;
tail = root;
head.next = expr(tail);
break;
}
Instead of listening to the scroll event, using Intersection Observer is the inexpensive one for checking if the last element was visible on the viewport (that's mean user was scrolled to the bottom). It also supported for IE7 with the polyfill.
var observer = new IntersectionObserver(function(entries){_x000D_
if(entries[0].isIntersecting === true)_x000D_
console.log("Scrolled to the bottom");_x000D_
else_x000D_
console.log("Not on the bottom");_x000D_
}, {_x000D_
root:document.querySelector('#scrollContainer'),_x000D_
threshold:1 // Trigger only when whole element was visible_x000D_
});_x000D_
_x000D_
observer.observe(document.querySelector('#scrollContainer').lastElementChild);
_x000D_
#scrollContainer{_x000D_
height: 100px;_x000D_
overflow: hidden scroll;_x000D_
}
_x000D_
<div id="scrollContainer">_x000D_
<div>Item 1</div>_x000D_
<div>Item 2</div>_x000D_
<div>Item 3</div>_x000D_
<div>Item 4</div>_x000D_
<div>Item 5</div>_x000D_
<div>Item 6</div>_x000D_
<div>Item 7</div>_x000D_
<div>Item 8</div>_x000D_
<div>Item 9</div>_x000D_
<div>Item 10</div>_x000D_
</div>
_x000D_
The goal you indicate in the command line is linked to the lifecycle of Maven. For example, the build
lifecycle (you also have the clean
and site
lifecycles which are different) is composed of the following phases:
validate
: validate the project is correct and all necessary information is available.compile
: compile the source code of the project.test
: test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed.package
: take the compiled code and package it in its distributable format, such as a JAR.integration-test
: process and deploy the package if necessary into an environment where integration tests can be run.verify
: run any checks to verify the package is valid and meets quality criteriainstall
: install the package into the local repository, for use as a dependency in other projects locally.deploy
: done in an integration or release environment, copies the final package to the remote repository for sharing with other developers and projects.You can find the list of "core" plugins here, but there are plenty of others plugins, such as the codehaus ones, here.
When I did this for a navigation database built from ARINC424 I did a fair amount of testing and looking back at the code, I used a DECIMAL(18,12) (Actually a NUMERIC(18,12) because it was firebird).
Floats and doubles aren't as precise and may result in rounding errors which may be a very bad thing. I can't remember if I found any real data that had problems - but I'm fairly certain that the inability to store accurately in a float or a double could cause problems
The point is that when using degrees or radians we know the range of the values - and the fractional part needs the most digits.
The MySQL Spatial Extensions are a good alternative because they follow The OpenGIS Geometry Model. I didn't use them because I needed to keep my database portable.
foreach (var data in dynObj.quizlist)
{
foreach (var data1 in data.QUIZ.QPROP)
{
Response.Write("Name" + ":" + data1.name + "<br>");
Response.Write("Intro" + ":" + data1.intro + "<br>");
Response.Write("Timeopen" + ":" + data1.timeopen + "<br>");
Response.Write("Timeclose" + ":" + data1.timeclose + "<br>");
Response.Write("Timelimit" + ":" + data1.timelimit + "<br>");
Response.Write("Noofques" + ":" + data1.noofques + "<br>");
foreach (var queprop in data1.QUESTION.QUEPROP)
{
Response.Write("Questiontext" + ":" + queprop.questiontext + "<br>");
Response.Write("Mark" + ":" + queprop.mark + "<br>");
}
}
}
extern keyword is used with the variable for its identification as a global variable.
It also represents that you can use the variable declared using extern keyword in any file though it is declared/defined in other file.
You can use the event ProgressChanged ; the last time it is raised will indicate that the document is fully rendered:
this.webBrowser.ProgressChanged += new
WebBrowserProgressChangedEventHandler(webBrowser_ProgressChanged);
I know that the question is too old, anyway:
select a, b from mytable group by a, b
will give your all the combinations.
Do I understand right that you assume that DATE_ADD("2011-01-01", INTERVAL 6 MONTH)
should give you '2011-06-30' instead of '2011-07-01'? Of course, 2011-01-01 + 6 months is 2011-07-01. You want something like DATE_SUB(DATE_ADD("2011-01-01", INTERVAL 6 MONTH), INTERVAL 1 DAY)
.
Within PowerShell ISE you can hit Ctrl+J to open the Start Snipping menu and select Comment block:
This code works:
$(".ui-button-text").live(
'hover',
function (ev) {
if (ev.type == 'mouseover') {
$(this).addClass("ui-state-hover");
}
if (ev.type == 'mouseout') {
$(this).removeClass("ui-state-hover");
}
});
Just an extra info, if you are using DB
:
DB::table('test')->where('id', '>', 0)->pluck('id')->toArray();
And if using Eloquent model:
test::where('id', '>', 0)->lists('id')->toArray();
You will not able to test the app using the Google-Play-Service library
in emulator. In order to test that app in emulator you need to install some system framework in your emulator to make it work.
https://stackoverflow.com/a/11213598/1405008
Refer the above answer to install Google play service on your emulator.
The concatenation operator +
is a binary infix operator which, when applied to lists, returns a new list containing all the elements of each of its two operands. The list.append()
method is a mutator
on list
which appends its single object
argument (in your specific example the list c
) to the subject list
. In your example this results in c
appending a reference to itself (hence the infinite recursion).
The list.extend()
method is also a mutator method which concatenates its sequence
argument with the subject list
. Specifically, it appends each of the elements of sequence
in iteration order.
Being an operator, +
returns the result of the expression as a new value. Being a non-chaining mutator
method, list.extend()
modifies the subject list in-place and returns nothing.
I've added this due to the potential confusion which the Abel's answer above may cause by mixing the discussion of lists, sequences and arrays.
Arrays
were added to Python after sequences and lists, as a more efficient way of storing arrays of integral data types. Do not confuse arrays
with lists
. They are not the same.
From the array docs:
Arrays are sequence types and behave very much like lists, except that the type of objects stored in them is constrained. The type is specified at object creation time by using a type code, which is a single character.
I had a similar problem when I deployed my Flask app in the IIS. Apparently, IIS does not accept route that include an underline ("_"). When I removed the underline, problem was resolved.
Another clean option that I have found useful is pandas.DataFrame.mask which will "replace values where the condition is true."
Create the DataFrame:
In [2]: import pandas as pd
In [3]: df = pd.DataFrame({'a': [0, -1, 2], 'b': [-3, 2, 1]})
In [4]: df
Out[4]:
a b
0 0 -3
1 -1 2
2 2 1
Replace negative numbers with 0:
In [5]: df.mask(df < 0, 0)
Out[5]:
a b
0 0 0
1 0 2
2 2 1
Or, replace negative numbers with NaN, which I frequently need:
In [7]: df.mask(df < 0)
Out[7]:
a b
0 0.0 NaN
1 NaN 2.0
2 2.0 1.0
You would basically want something along the lines of:
SELECT e.*, v.Score
FROM Evaluation e
LEFT JOIN Value v
ON v.CaseNum = e.CaseNum AND
v.FileNum = e.FileNum AND
v.ActivityNum = e.ActivityNum;
To Create a foreign key on any table
ALTER TABLE [SCHEMA].[TABLENAME] ADD FOREIGN KEY (COLUMNNAME) REFERENCES [TABLENAME](COLUMNNAME)
EXAMPLE
ALTER TABLE [dbo].[UserMaster] ADD FOREIGN KEY (City_Id) REFERENCES [dbo].[CityMaster](City_Id)
A pointer is a "reference" to a value.. much like a library call number is a reference to a book. "Dereferencing" the call number is physically going through and retrieving that book.
int a=4 ;
int *pA = &a ;
printf( "The REFERENCE/call number for the variable `a` is %p\n", pA ) ;
// The * causes pA to DEREFERENCE... `a` via "callnumber" `pA`.
printf( "%d\n", *pA ) ; // prints 4..
If the book isn't there, the librarian starts shouting, shuts the library down, and a couple of people are set to investigate the cause of a person going to find a book that isn't there.
Another hints for Unexpected token
errors.
There are two major differences between javascript objects and json:
Correct JSON
{
"english": "bag",
"kana": "kaban",
"kanji": "K"
}
Error JSON 1
{
'english': 'bag',
'kana': 'kaban',
'kanji': 'K'
}
Error JSON 2
{
english: "bag",
kana: "kaban",
kanji: "K"
}
Remark
This is not a direct answer for that question. But it's an answer for Unexpected token
errors. So it may be help others who stumple upon that question.
Edit -- just saw your comment about the performance problems associated with a potentially bad piece of input data. I don't know offhand how try/catch on parseInt compares to a regex. I would guess, based on very little hard knowledge, that regexes are not hugely performant, compared to try/catch, in Java.
Anyway, I'd just do this:
public Integer tryParse(Object obj) {
Integer retVal;
try {
retVal = Integer.parseInt((String) obj);
} catch (NumberFormatException nfe) {
retVal = 0; // or null if that is your preference
}
return retVal;
}
If you want to print all the columns in your select clause you can go with the autoprint command.
CREATE OR REPLACE PROCEDURE sps_detail_dtest(v_refcur OUT sys_refcursor)
AS
BEGIN
OPEN v_refcur FOR 'select * from dummy_table';
END;
SET autoprint on;
--calling the procedure
VAR vcur refcursor;
DECLARE
BEGIN
sps_detail_dtest(vrefcur=>:vcur);
END;
Hope this gives you an alternate solution
This is what I did to achieve translucency with AlertDialog.
Created a custom style:
<style name="TranslucentDialog" parent="@android:style/Theme.DeviceDefault.Dialog.Alert">
<item name="android:colorBackground">#32FFFFFF</item>
</style>
And then create the dialog with:
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.TranslucentDialog);
AlertDialog dialog = builder.create();
Check filenames.
You might need to create a new database in phpmyadmin that matches the database you're trying to import.
There is an Exception
constructor that takes also the cause argument: Exception(String message, Throwable t).
You can use it to propagate the stacktrace:
try{
//...
}catch(Exception E){
if(!transNbr.equals("")){
throw new Exception("transaction: " + transNbr, E);
}
//...
}
click: WAMP icon->Apache->Apache modules->chose rewrite_module
and do restart for all services.
I tried OpenDiff Tool . Great tool that is free and easy to use .
The best way is to insert an appropriate input tag:
<input type="submit" value="submit" />
<form id="form-id">
<button id="your-id">submit</button>
</form>
var form = document.getElementById("form-id");
document.getElementById("your-id").addEventListener("click", function () {
form.submit();
});
Enclose the latter JavaScript code by an DOMContentLoaded
event (choose only load
for backward compatiblity) if you haven't already done so:
window.addEventListener("DOMContentLoaded", function () {
var form = document.... // copy the last code block!
});
Add an onclick
attribute to the link and an id
to the form:
<form id="form-id">
<a href="#" onclick="document.getElementById('form-id').submit();"> submit </a>
</form>
Whatever way you choose, you have call formObject.submit()
eventually (where formObject
is the DOM object of the <form>
tag).
You also have to bind such an event handler, which calls formObject.submit()
, so it gets called when the user clicked a specific link or button. There are two ways:
Recommended: Bind an event listener to the DOM object.
// 1. Acquire a reference to our <form>.
// This can also be done by setting <form name="blub">:
// var form = document.forms.blub;
var form = document.getElementById("form-id");
// 2. Get a reference to our preferred element (link/button, see below) and
// add an event listener for the "click" event.
document.getElementById("your-id").addEventListener("click", function () {
form.submit();
});
Not recommended: Insert inline JavaScript. There are several reasons why this technique is not recommendable. One major argument is that you mix markup (HTML) with scripts (JS). The code becomes unorganized and rather unmaintainable.
<a href="#" onclick="document.getElementById('form-id').submit();">submit</a>
<button onclick="document.getElementById('form-id').submit();">submit</button>
Now, we come to the point at which you have to decide for the UI element which triggers the submit() call.
A button
<button>submit</button>
A link
<a href="#">submit</a>
Apply the aforementioned techniques in order to add an event listener.
Worked in Swift 3
NSDecimalNumber(string: "Your string")
To show months as Jan 2017 Feb 2017 etc:
scale_x_date(date_breaks = "1 month", date_labels = "%b %Y")
Angle the dates if they take up too much space:
theme(axis.text.x=element_text(angle=60, hjust=1))
I have soled the problem by changing target android version to 28 in project.properties (target=android-28) and installed cordova-plugin-androidx and cordova-plugin-androidx-adapter.
Checking the file extension is not considered best practice. The preferred method of accomplishing this task is by checking the files MIME type.
From PHP:
<?php
$finfo = finfo_open(FILEINFO_MIME_TYPE); // Return MIME type
foreach (glob("*") as $filename) {
echo finfo_file($finfo, $filename) . "\n";
}
finfo_close($finfo);
?>
The above example will output something similar to which you should be checking.
text/html
image/gif
application/vnd.ms-excel
Although MIME types can also be tricked (edit the first few bytes of a file and modify the magic numbers), it's harder than editing a filename. So you can never be 100% sure what that file type actually is, and care should be taken about handling files uploaded/emailed by your users.
The check has to be like this:
if num == line.split()[0]:
If file.txt has a layout like this:
1 foo
20 bar
30 20
We split up "1 foo"
into ['1', 'foo']
and just use the first item, which is the number.
If you are debugging or similar - In chrome developer tools, you can simply use
$x('/html/.//div[@id="text"]')
Nearly every answer proposes a static function as a solution, but thinking Object-Oriented (for reusability-purposes and clarity) I came up with a Solution via Delegation through the CharSequence-Interface (which also opens up usability on mutable CharSequence-Classes).
The following Class can be used either with or without Separator-String/CharSequence and each call to "toString()" builds the final repeated String. The Input/Separator are not only limited to String-Class, but can be every Class which implements CharSequence (e.g. StringBuilder, StringBuffer, etc)!
/**
* Helper-Class for Repeating Strings and other CharSequence-Implementations
* @author Maciej Schuttkowski
*/
public class RepeatingCharSequence implements CharSequence {
final int count;
CharSequence internalCharSeq = "";
CharSequence separator = "";
/**
* CONSTRUCTOR - RepeatingCharSequence
* @param input CharSequence to repeat
* @param count Repeat-Count
*/
public RepeatingCharSequence(CharSequence input, int count) {
if(count < 0)
throw new IllegalArgumentException("Can not repeat String \""+input+"\" less than 0 times! count="+count);
if(count > 0)
internalCharSeq = input;
this.count = count;
}
/**
* CONSTRUCTOR - Strings.RepeatingCharSequence
* @param input CharSequence to repeat
* @param count Repeat-Count
* @param separator Separator-Sequence to use
*/
public RepeatingCharSequence(CharSequence input, int count, CharSequence separator) {
this(input, count);
this.separator = separator;
}
@Override
public CharSequence subSequence(int start, int end) {
checkBounds(start);
checkBounds(end);
int subLen = end - start;
if (subLen < 0) {
throw new IndexOutOfBoundsException("Illegal subSequence-Length: "+subLen);
}
return (start == 0 && end == length()) ? this
: toString().substring(start, subLen);
}
@Override
public int length() {
//We return the total length of our CharSequences with the separator 1 time less than amount of repeats:
return count < 1 ? 0
: ( (internalCharSeq.length()*count) + (separator.length()*(count-1)));
}
@Override
public char charAt(int index) {
final int internalIndex = internalIndex(index);
//Delegate to Separator-CharSequence or Input-CharSequence depending on internal index:
if(internalIndex > internalCharSeq.length()-1) {
return separator.charAt(internalIndex-internalCharSeq.length());
}
return internalCharSeq.charAt(internalIndex);
}
@Override
public String toString() {
return count < 1 ? ""
: new StringBuilder(this).toString();
}
private void checkBounds(int index) {
if(index < 0 || index >= length())
throw new IndexOutOfBoundsException("Index out of Bounds: "+index);
}
private int internalIndex(int index) {
// We need to add 1 Separator-Length to total length before dividing,
// as we subtracted one Separator-Length in "length()"
return index % ((length()+separator.length())/count);
}
}
public static void main(String[] args) {
//String input = "12345";
//StringBuffer input = new StringBuffer("12345");
StringBuilder input = new StringBuilder("123");
//String separator = "<=>";
StringBuilder separator = new StringBuilder("<=");//.append('>');
int repeatCount = 2;
CharSequence repSeq = new RepeatingCharSequence(input, repeatCount, separator);
String repStr = repSeq.toString();
System.out.println("Repeat="+repeatCount+"\tSeparator="+separator+"\tInput="+input+"\tLength="+input.length());
System.out.println("CharSeq:\tLength="+repSeq.length()+"\tVal="+repSeq);
System.out.println("String :\tLength="+repStr.length()+"\tVal="+repStr);
//Here comes the Magic with a StringBuilder as Input, as you can append to the String-Builder
//and at the same Time your Repeating-Sequence's toString()-Method returns the updated String :)
input.append("ff");
System.out.println(repSeq);
//Same can be done with the Separator:
separator.append("===").append('>');
System.out.println(repSeq);
}
Repeat=2 Separator=<= Input=123 Length=3
CharSeq: Length=8 Val=123<=123
String : Length=8 Val=123<=123
123ff<=123ff
123ff<====>123ff
If you have few enough files that you can list each one, then you can use process substitution in Bash, inserting a newline between each pair of files:
cat File1.txt <(echo) File2.txt <(echo) File3.txt > finalfile.txt
I presume you want to copy C:\OtherFolder\fileToCheck.bat to C:\MyFolder if the existing file in C:\MyFolder is either missing entirely, or if it is missing "stringToCheck".
FINDSTR sets ERRORLEVEL to 0 if the string is found, to 1 if it is not. It also sets errorlevel to 1 if the file is missing. It also prints out each line that matches. Since you are trying to use it as a condition, I presume you don't need or want to see any of the output. The 1st thing I would suggest is to redirect both the normal and error output to nul using >nul 2>&1
.
Solution 1 (mostly the same as previous answers)
You can use IF ERRORRLEVEL N
to check if the errorlevel is >= N. Or you can use IF NOT ERRORLEVEL N
to check if errorlevel is < N. In your case you want the former.
findstr /c:"stringToCheck" "c:\MyFolder\fileToCheck.bat" >nul 2>&1
if errorlevel 1 xcopy "C:\OtherFolder\fileToCheck.bat" "c:\MyFolder"
Solution 2
You can test for a specific value of errorlevel by using %ERRORLEVEL%. You can probably check if the value is equal to 1, but it might be safer to check if the value is not equal to 0, since it is only set to 0 if the file exists and it contains the string.
findstr /c:"stringToCheck" "c:\MyFolder\fileToCheck.bat" >nul 2>&1
if not %errorlevel% == 0 xcopy "C:\OtherFolder\fileToCheck.bat" "c:\MyFolder"
or
findstr /c:"stringToCheck" "c:\MyFolder\fileToCheck.bat" >nul 2>&1
if %errorlevel% neq 0 xcopy "C:\OtherFolder\fileToCheck.bat" "c:\MyFolder"
Solution 3
There is a very compact syntax to conditionally execute a command based on the success or failure of the previous command: cmd1 && cmd2 || cmd3
which means execute cmd2 if cmd1 was successful (errorlevel=0), else execute cmd3 if cmd1 failed (errorlevel<>0). You can use && alone, or || alone. All the commands need to be on the same line. If you need to conditionally execute multiple commands you can use multiple lines by adding parentheses
cmd1 && (
cmd2
cmd3
) || (
cmd4
cmd5
)
So for your case, all you need is
findstr /c:"stringToCheck" "c:\MyFolder\fileToCheck.bat" >nul 2>&1 || xcopy "C:\OtherFolder\fileToCheck.bat" "c:\MyFolder"
But beware - the ||
will respond to the return code of the last command executed. In my earlier pseudo code the ||
will obviously fire if cmd1 fails, but it will also fire if cmd1 succeeds but then cmd3 fails.
So if your success block ends with a command that may fail, then you should append a harmless command that is guaranteed to succeed. I like to use (CALL )
, which is harmless, and always succeeds. It also is handy that it sets the ERRORLEVEL to 0. There is a corollary (CALL)
that always fails and sets ERRORLEVEL to 1.
You could use the xpath :
//div[@class="measure-tab" and .//span[contains(., "someText")]]
Input :
<root>
<div class="measure-tab">
<td> someText</td>
</div>
<div class="measure-tab">
<div>
<div2>
<span>someText2</span>
</div2>
</div>
</div>
</root>
Output :
Element='<div class="measure-tab">
<div>
<div2>
<span>someText2</span>
</div2>
</div>
</div>'
As you can see, the import command did work but is showing errors because it tried to locate the resources in vendor.css and couldn't find them
You should also upload your project structure and ensure that there aren't any path issues. Also, you could include the css file in the index.html or the Component template and webpack loader would extract it when built
var $select = $(document.getElementById("selectTagName"));
var selectize = $select[0].selectize;
selectize.setValue(selectize.search("My Default Value").items[0]);
Adding import 'core-js/es7/array';
to my polyfill.ts
fixed the issue for me.
public static String setPrecision(String number, int decimal) {
double nbr = Double.valueOf(number);
int integer_Part = (int) nbr;
double float_Part = nbr - integer_Part;
int floating_point = (int) (Math.pow(10, decimal) * float_Part);
String final_nbr = String.valueOf(integer_Part) + "." + String.valueOf(floating_point);
return final_nbr;
}
You need to SAVE your code file with the ".py" extension. Then, on the 'Tools/Build System' menu, make sure your build system is set to either 'auto' or 'Python'. What that message is telling you is there is no valid Python file to 'build' (or, in this case just run).
Try to make your javascript unobtrusive :
I'm using GDB7.1.1, as --help
shows:
gdb [options] --args executable-file [inferior-arguments ...]
IMHO, the order is a bit unintuitive at first.
If you want to write less code in Kotlin
you can do this:
fun Context.openAppSystemSettings() {
startActivity(Intent().apply {
action = Settings.ACTION_APPLICATION_DETAILS_SETTINGS
data = Uri.fromParts("package", packageName, null)
})
}
Based on Martin Konecny answer
Try this.
public static void main(String[] args) {
EchoServer0 myServer;
myServer = new EchoServer0();
myServer.listen();
}
What you were trying to do was declaring a variable of type Object
, not creating anything for that variable to reference, then trying to call a method that didn't exist (in the class Object
) on an object that hadn't been created. It was never going to work.
I have faced this issue, but found an answer before finding this post :
Based on unutbu's answer, load your data...
import pandas as pd
import io
texts = ['''\
id Name score isEnrolled Date
111 Jack True 2013-05-01 12:00:00
112 Nick 1.11 False 2013-05-12 15:05:23
Zoe 4.12 True ''',
'''\
id Name score isEnrolled Date
111 Jack 2.17 True 2013-05-01 12:00:00
112 Nick 1.21 False
Zoe 4.12 False 2013-05-01 12:00:00''']
df1 = pd.read_fwf(io.StringIO(texts[0]), widths=[5,7,25,17,20], parse_dates=[4])
df2 = pd.read_fwf(io.StringIO(texts[1]), widths=[5,7,25,17,20], parse_dates=[4])
...define your diff function...
def report_diff(x):
return x[0] if x[0] == x[1] else '{} | {}'.format(*x)
Then you can simply use a Panel to conclude :
my_panel = pd.Panel(dict(df1=df1,df2=df2))
print my_panel.apply(report_diff, axis=0)
# id Name score isEnrolled Date
#0 111 Jack nan | 2.17 True 2013-05-01 12:00:00
#1 112 Nick 1.11 | 1.21 False 2013-05-12 15:05:23 | NaT
#2 nan | nan Zoe 4.12 True | False NaT | 2013-05-01 12:00:00
By the way, if you're in IPython Notebook, you may like to use a colored diff function to give colors depending whether cells are different, equal or left/right null :
from IPython.display import HTML
pd.options.display.max_colwidth = 500 # You need this, otherwise pandas
# will limit your HTML strings to 50 characters
def report_diff(x):
if x[0]==x[1]:
return unicode(x[0].__str__())
elif pd.isnull(x[0]) and pd.isnull(x[1]):
return u'<table style="background-color:#00ff00;font-weight:bold;">'+\
'<tr><td>%s</td></tr><tr><td>%s</td></tr></table>' % ('nan', 'nan')
elif pd.isnull(x[0]) and ~pd.isnull(x[1]):
return u'<table style="background-color:#ffff00;font-weight:bold;">'+\
'<tr><td>%s</td></tr><tr><td>%s</td></tr></table>' % ('nan', x[1])
elif ~pd.isnull(x[0]) and pd.isnull(x[1]):
return u'<table style="background-color:#0000ff;font-weight:bold;">'+\
'<tr><td>%s</td></tr><tr><td>%s</td></tr></table>' % (x[0],'nan')
else:
return u'<table style="background-color:#ff0000;font-weight:bold;">'+\
'<tr><td>%s</td></tr><tr><td>%s</td></tr></table>' % (x[0], x[1])
HTML(my_panel.apply(report_diff, axis=0).to_html(escape=False))
You can read up this property every few calls, Environment.StackTrace
, and if the stacktrace exceded a specific threshold that you preset, you can return the function.
You should also try to replace some recursive functions with loops.
You could write a simple jQuery plugin to do this. The plugin would look like:
(function($) {
$.fn.expandcollapse = function() {
return this.each(function() {
obj = $(this);
switch (obj.css("display")) {
case "block":
displayValue = "none";
break;
case "none":
default:
displayValue = "block";
}
obj.css("display", displayValue);
});
};
} (jQuery));
Then wire the plugin up to the click event for the anchor tag:
$(document).ready(function() {
$("#mylink").click(function() {
$("div").expandcollapse();
});
});
Providing that you set the initial 'display' attributes for each div to be 'block' and 'none' respectively, they should switch to being shown/hidden when the link is clicked.
Use this it will work,
<body>
<h1>Adding 'a' and 'b'</h1>
<form>
a: <input type="number" name="a" id="a"><br>
b: <input type="number" name="b" id="a"><br>
<button onclick="add()">Add</button>
</form>
<script>
function add() {
var m = document.getElementById("a").value;
var n = document.getElementById("b").value;
var sum = m + n;
alert(sum);
}
</script>
</body>
Here's one explanation:
Once a socket is no longer required, the calling program can discard the socket by applying a close subroutine to the socket descriptor. If a reliable delivery socket has data associated with it when a close takes place, the system continues to attempt data transfer. However, if the data is still undelivered, the system discards the data. Should the application program have no use for any pending data, it can use the shutdown subroutine on the socket prior to closing it.
Double escaping is required when presented as a string.
Whenever I'm making a new regular expression I do a bunch of tests with online tools, for example: http://www.regexplanet.com/advanced/java/index.html
That website allows you to enter the regular expression, which it'll escape into a string for you, and you can then test it against different inputs.
For me on a div without fixed size and with dynamic content it worked using:
display:table;
word-break:break-all;
I know it has been a while since this was posted, but I think this will help too. I wanted to count unique values and filter the groups by number of these unique values, this is how I did it:
df.groupby('group').agg(['min','max','count','nunique']).reset_index(drop=False)
I know that this is a super-old post. Assuming that you are calling into your application, here is an idea that has worked for me:
If you don't need total control, you could use an update panel which would do this for you.
Try
location+''
let url = location+'';_x000D_
_x000D_
console.log(url);
_x000D_
There are two ways of storing a color with alpha. The first is exactly as you see it, with each component as-is. The second is to use pre-multiplied alpha, where the color values are multiplied by the alpha after converting it to the range 0.0-1.0; this is done to make compositing easier. Ordinarily you shouldn't notice or care which way is implemented by any particular engine, but there are corner cases where you might, for example if you tried to increase the opacity of the color. If you use rgba(0, 0, 0, 0)
you are less likely to to see a difference between the two approaches.
Here's a webkit example which works for Chrome and Safari:
CSS:
::-webkit-scrollbar
{
width: 40px;
background-color:#4F4F4F;
}
::-webkit-scrollbar-button:vertical:increment
{
height:40px;
background-image: url(/Images/Scrollbar/decrement.png);
background-size:39px 30px;
background-repeat:no-repeat;
}
::-webkit-scrollbar-button:vertical:decrement
{
height:40px;
background-image: url(/Images/Scrollbar/increment.png);
background-size:39px 30px;
background-repeat:no-repeat;
}
Output:
You are right about AccelerateInterpolator; you should use LinearInterpolator instead.
You can use the built-in android.R.anim.linear_interpolator
from your animation XML file with android:interpolator="@android:anim/linear_interpolator"
.
Or you can create your own XML interpolation file in your project, e.g. name it res/anim/linear_interpolator.xml
:
<?xml version="1.0" encoding="utf-8"?>
<linearInterpolator xmlns:android="http://schemas.android.com/apk/res/android" />
And add to your animation XML:
android:interpolator="@anim/linear_interpolator"
Special Note: If your rotate animation is inside a set, setting the interpolator does not seem to work. Making the rotate the top element fixes it. (this will save your time.)
Well, you need to look at the answers above, but you'll find that the manager app requires you to have a user with the role 'manager', I believe, so you'll probably want to add the following to your tomcat-users.xml file:
<role rolename="manager"/>
<user username="youruser" password="yourpass" roles="manager"/>
This might seem simplistic, but it's just a simple implementation that you can extend / replace with other authentication mechanisms.
In command mode in VIM:
:e ++ff=dos | setl ff=unix | up
e ++ff=dos
- force open file in dos
format.
setl ff=unix
- convert file to unix
format.
up
- save file only when has been modified.
You want to look at the patch() function, and sneak in points for the start and end of the horizontal line:
x = 0:.1:2*pi;
y = sin(x)+rand(size(x))/2;
x2 = [0 x 2*pi];
y2 = [.1 y .1];
patch(x2, y2, [.8 .8 .1]);
If you only want the filled in area for a part of the data, you'll need to truncate the x and y vectors to only include the points you need.
Fragment yourFragment = yourviewpageradapter.getItem(int index);
index
is the place of fragment in adapter like you added fragment1
first so retreive fragment1
pass index
as 0 and so on for rest
html code in my case
<ul class="navs">
<li id="tab1"><a href="index-2.html">home</a></li>
<li id="tab2"><a href="about.html">about</a></li>
<li id="tab3"><a href="project-02.html">Products</a></li>
<li id="tab4"><a href="contact.html">contact</a></li>
</ul>
and js code is
$('.navs li a').click(function (e) {
var $parent = $(this).parent();
document.cookie = eraseCookie("tab");
document.cookie = createCookie("tab", $parent.attr('id'),0);
});
$().ready(function () {
var $activeTab = readCookie("tab");
if (!$activeTab =="") {
$('#tab1').removeClass('ActiveTab');
}
// alert($activeTab.toString());
$('#'+$activeTab).addClass('active');
});
function createCookie(name, value, days) {
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
var expires = "; expires=" + date.toGMTString();
}
else var expires = "";
document.cookie = name + "=" + value + expires + "; path=/";
}
function readCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ') c = c.substring(1, c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
}
return null;
}
function eraseCookie(name) {
createCookie(name, "", -1);
}
Other option using apache-commons:
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.FileUtils;
...
File file = new File( "path" );
byte[] bytes = Base64.decodeBase64( "base64" );
FileUtils.writeByteArrayToFile( file, bytes );
You have probably added them to the repository before putting *.pyc
in .gitignore
.
First remove them from the repository.
To synchronize all of the answers here and elsewhere:
buildscript { repositories { google() jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.0.0' } }
Make your buildscript in build.gradle look like this. It finds all of them between google and jcenter. Only one of them will not find all of the dependencies as of this answer.
In simple words.
In Python you should add self
argument as the first argument to all defined methods in classes:
class MyClass:
def method(self, arg):
print(arg)
Then you can use your method according to your intuition:
>>> my_object = MyClass()
>>> my_object.method("foo")
foo
This should solve your problem :)
For a better understanding, you can also read the answers to this question: What is the purpose of self?
Reinstallation will works because it will reset all the value to default. It is better to find what the real culprits (my.cnf editing mistake does happens, e.g. bad/outdated parameter suggestion during mysql tuning.)
Here is the mysql diagnosis if you suspect some value is wrong inside my.cnf : Run the mysqld to show you the results.
sudo -u mysql mysqld
Afterwards, fix all the my.cnf key error that pop out from the screen until mysqld startup successfully.
Then restart it using
sudo service mysql restart
For t2/m3/c3/c4/r3/i2/d2 instances:
m1 small, medium, and large instances tend to perform higher than expected. c1.medium is another freak, at 800 MBit/s.
I gathered this by combing dozens of sources doing benchmarks (primarily using iPerf & TCP connections). Credit to CloudHarmony & flux7 in particular for many of the benchmarks (note that those two links go to google searches showing the numerous individual benchmarks).
The large instance size has the most variation reported:
Burstable (T2) instances appear to exhibit burstable networking performance too:
The CloudHarmony iperf benchmarks show initial transfers start at 1 GBit/s and then gradually drop to the sustained levels above after a few minutes. PDF links to reports below:
t2.small (PDF)
Note that these are within the same region - if you're transferring across regions, real performance may be much slower. Even for the larger instances, I'm seeing numbers of a few hundred MBit/s.
It's not really a question of what's more efficient.
The commands 'rsync', and 'cp' are not equivalent and achieve different goals.
1- rsync can preserve the time of creation of existing files. (using -a option)
2- rsync will run multiprocess and transfer using either local sockets or network sockets. (i.e. fork itself into multiple processes)
3- The multiprocessing, and threading will increase your throughput when copying large number of small files, and even with multiple larger files.
So bottom line is rsync is for large data, and cp is for smaller local copying. (MB to small GB range). When you start getting into multiple GB or in the TB range, go with rsync. And of course network copies, rsync all the way.
To force IE to render in IE9 standards mode you should use
<meta http-equiv="X-UA-Compatible" content="IE=edge">
Some conditions may cause IE9 to jump down into the compatibility modes. By default this can occur on intranet sites.
Old question but I use this quite frequently (for version 3.8). It's a bit of syntactic salt, but it has the advantage over the top answer in that you could retrieve a list of results (if there are multiple) by simply removing the [0]
and it still defaults to None
if nothing is found. For any other condition, simply change the x.value==value
to what ever you're looking for.
_[0] if (_:=[x for x in test_list if x.value==value]) else None
Many others have provided good info for sleeping. I agree with Wedge that a sleep seldom the most appropriate solution.
If you are sleeping as you wait for something, then you are better off actually waiting for that thing/event. Look at Condition Variables for this.
I don't know what OS you are trying to do this on, but for threading and synchronisation you could look to the Boost Threading libraries (Boost Condition Varriable).
Moving now to the other extreme if you are trying to wait for exceptionally short periods then there are a couple of hack style options. If you are working on some sort of embedded platform where a 'sleep' is not implemented then you can try a simple loop (for/while etc) with an empty body (be careful the compiler does not optimise it away). Of course the wait time is dependant on the specific hardware in this case. For really short 'waits' you can try an assembly "nop". I highly doubt these are what you are after but without knowing why you need to wait it's hard to be more specific.
You can do it like this:
<input type="hidden" name="result" value="<?php foreach($postvalue as $value) echo $postvalue.","; ?>">
I would do:
((-1)+8) % 8
This adds the latter number to the first before doing the modulo giving 7 as desired. This should work for any number down to -8. For -9 add 2*8.
I had this issue when i tried to connect to postgresql while i'm using microsoft sutdio for mssql :)
The error is self-explanatory... doInBackground()
runs on a background thread which, since it is not intended to loop, is not connected to a Looper
.
You most likely don't want to directly instantiate a Handler at all... whatever data your doInBackground()
implementation returns will be passed to onPostExecute()
which runs on the UI thread.
mActivity = ThisActivity.this;
mActivity.runOnUiThread(new Runnable() {
public void run() {
new asyncCreateText().execute();
}
});
ADDED FOLLOWING THE STACKTRACE APPEARING IN QUESTION:
Looks like you're trying to start an AsyncTask
from a GL rendering thread... don't do that cos they won't ever Looper.loop()
either. AsyncTasks are really designed to be run from the UI thread only.
The least disruptive fix would probably be to call Activity.runOnUiThread()
with a Runnable
that kicks off your AsyncTask
.
You don't escape quotes in regular expressions
this.Vals.replace(/["']/g, "")
You don't need the jsp:useBean
to set the model if you already have a controller which prepared the model.
Just access it plain by EL:
<p>${Questions.questionPaperID}</p>
<p>${Questions.question}</p>
or by JSTL <c:out>
tag if you'd like to HTML-escape the values or when you're still working on legacy Servlet 2.3 containers or older when EL wasn't supported in template text yet:
<p><c:out value="${Questions.questionPaperID}" /></p>
<p><c:out value="${Questions.question}" /></p>
Unrelated to the problem, the normal practice is by the way to start attribute name with a lowercase, like you do with normal variable names.
session.setAttribute("questions", questions);
and alter EL accordingly to use ${questions}
.
Also note that you don't have any JSTL tag in your code. It's all plain JSP.
Do you checks that file is uploaded ok ? Maybe you exceeded max_post_size, or max_upload_filesize. When login using FileZilla you are copying files as you, when uploading by PHP wiritng this file is from user that runs apache (for exaplme www-data), try to put chmod 755 for images.
If this is your dataArray
:
var dataArray = [{"id":28,"class":"Sweden"}, {"id":56,"class":"USA"}, {"id":89,"class":"England"}];
then:
$(jQuery.parseJSON(JSON.stringify(dataArray))).each(function() {
var ID = this.id;
var CLASS = this.class;
});
curl will encode the data for you, just drop your raw field data into the fields array and tell it to "go".
Edit /etc/sudoers
file either manually or using the visudo application.
Remember: System reads /etc/sudoers
file from top to the bottom, so you could overwrite a particular setting by putting the next one below.
So to be on the safe side - define your access setting at the bottom.
You could always write out the list of keys in addition to dumping the dict, and then reconstruct the OrderedDict
by iterating through the list?
The other answers here clearly explained what does it mean.I like to explain its use.
You can select an element in the elements
tab and switch to console
tab in chrome. Just type $0 or $1
or whatever number and press enter and the element will be displayed in the console for your use.
Hide it for all activities using the theme
<style name="MyTheme" parent="Theme">
<item name="android:windowSoftInputMode">stateHidden</item>
</style>
set the theme
<application android:theme="@style/MyTheme">
If you're wondering why the original answer is not working. Well it might be that you're not in the home directory. Try this:
$KAFKA_HOME/bin/kafka-console-consumer.sh --bootstrap-server localhost:9092 --topic test --from-beginning
There is no event raised when a class changes. The alternative is to manually raise an event when you programatically change the class:
$someElement.on('event', function() {
$('#myDiv').addClass('submission-ok').trigger('classChange');
});
// in another js file, far, far away
$('#myDiv').on('classChange', function() {
// do stuff
});
UPDATE
This question seems to be gathering some visitors, so here is an update with an approach which can be used without having to modify existing code using the new MutationObserver
:
var $div = $("#foo");_x000D_
var observer = new MutationObserver(function(mutations) {_x000D_
mutations.forEach(function(mutation) {_x000D_
if (mutation.attributeName === "class") {_x000D_
var attributeValue = $(mutation.target).prop(mutation.attributeName);_x000D_
console.log("Class attribute changed to:", attributeValue);_x000D_
}_x000D_
});_x000D_
});_x000D_
observer.observe($div[0], {_x000D_
attributes: true_x000D_
});_x000D_
_x000D_
$div.addClass('red');
_x000D_
.red { color: #C00; }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="foo" class="bar">#foo.bar</div>
_x000D_
Be aware that the MutationObserver
is only available for newer browsers, specifically Chrome 26, FF 14, IE 11, Opera 15 and Safari 6. See MDN for more details. If you need to support legacy browsers then you will need to use the method I outlined in my first example.
<a href='javascript:void(0);'>some text</a>
You can use the following with the first day of the specified month:
datediff(day, @date, dateadd(month, 1, @date))
To make it work for every date:
datediff(day, dateadd(day, 1-day(@date), @date),
dateadd(month, 1, dateadd(day, 1-day(@date), @date)))
In the Oracle RDBMS, it is possible to use a multi-row subquery in the select clause as long as the (sub-)output is encapsulated as a collection. In particular, a multi-row select clause subquery can output each of its rows as an xmlelement that is encapsulated in an xmlforest.
Regarding tables names, case, etc, the prevalent convention is:
UPPER CASE
lower_case_with_underscores
UPDATE my_table SET name = 5;
This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively when not quoted (it actually folds them to lowercase internally), and case sensitively when quoted; many people are not aware of this idiosyncrasy. Using always lowercase you are safe. Anyway, it's acceptable to use camelCase
or PascalCase
(or UPPER_CASE
), as long as you are consistent: either quote identifiers always or never (and this includes the schema creation!).
I am not aware of many more conventions or style guides. Surrogate keys are normally made from a sequence (usually with the serial
macro), it would be convenient to stick to that naming for those sequences if you create them by hand (tablename_colname_seq
).
See also some discussion here, here and (for general SQL) here, all with several related links.
Note: Postgresql 10 introduced identity
columns as an SQL-compliant replacement for serial.
Change your || to && so it will only exit if the answer is NEITHER "AM" nor "PM".
Use a service to achieve this:
MyApp.app.service("xxxSvc", function () {
var _xxx = {};
return {
getXxx: function () {
return _xxx;
},
setXxx: function (value) {
_xxx = value;
}
};
});
Next, inject this service into both controllers.
In Controller1, you would need to set the shared xxx value with a call to the service: xxxSvc.setXxx(xxx)
Finally, in Controller2, add a $watch on this service's getXxx() function like so:
$scope.$watch(function () { return xxxSvc.getXxx(); }, function (newValue, oldValue) {
if (newValue != null) {
//update Controller2's xxx value
$scope.xxx= newValue;
}
}, true);
Just add font-size: 0;
to your element that contains text.
.hidden { font-size: 0; }
_x000D_
font-size: 0; hides text. <span class="hidden"> You can't see me :) </span>
_x000D_
You don't have to add any padding or edit the line-height!
Instead, just make sure that when you have an HTML like this :
<label><input type="checkbox" name=""><span>Checkbox Text</span></label>
Just make sure that the input height and width are the same, and the the text has the same font size.
Then, it will look perfectly fine and looks centered.
Append adds the entire data at once. The whole data will be added to the newly created index. On the other hand, extend
, as it name suggests, extends the current array.
For example
list1 = [123, 456, 678]
list2 = [111, 222]
With append
we get:
result = [123, 456, 678, [111, 222]]
While on extend
we get:
result = [123, 456, 678, 111, 222]
Came here with the additional requirement, that also parameter/return types should vary. Following Ben Supnik this would be for some type T
typedef T(*binary_T_op)(T, T);
instead of
typedef int(*binary_int_op)(int, int);
The solution here is to put the function type definition and the function template into a surrounding struct template.
template <typename T> struct BinOp
{
typedef T(*binary_T_op )(T, T); // signature for all valid template params
template<binary_T_op op>
T do_op(T a, T b)
{
return op(a,b);
}
};
double mulDouble(double a, double b)
{
return a * b;
}
BinOp<double> doubleBinOp;
double res = doubleBinOp.do_op<&mulDouble>(4, 5);
Alternatively BinOp could be a class with static method template do_op(...), then called as
double res = BinOp<double>::do_op<&mulDouble>(4, 5);
The short answer is adding a class directly to the element you want to style is indeed the most efficient way to target and style that Element. BUT, in real world scenarios it is so negligible that it is not an issue at all to worry about.
To quote Steve Ouders (CSS optimization expert) http://www.stevesouders.com/blog/2009/03/10/performance-impact-of-css-selectors/:
Based on tests I have the following hypothesis: For most web sites, the possible performance gains from optimizing CSS selectors will be small, and are not worth the costs.
Maintainability of code is much more important in real world scenarios. Since the underlying topic here is front-end performance; the real performance boosters for speedy page rendering are found in:
Source: http://stevesouders.com/docs/web20expo-20090402.ppt
So just to confirm, the answer is yes, example below is indeed faster but be aware of the bigger picture:
<div class="column">
<img class="custom-style" alt="appropriate alt text" />
</div>
A complete example which leaves the fields as NULL-terminated strings in the original input buffer and provides access to them via an array of char pointers. The CSV processor has been confirmed to work with fields enclosed in "double quotes", ignoring any delimiter chars within them.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// adjust BUFFER_SIZE to suit longest line
#define BUFFER_SIZE 1024 * 1024
#define NUM_FIELDS 10
#define MAXERRS 5
#define RET_OK 0
#define RET_FAIL 1
#define FALSE 0
#define TRUE 1
// char* array will point to fields
char *pFields[NUM_FIELDS];
// field offsets into pFields array:
#define LP 0
#define IMIE 1
#define NAZWISKo 2
#define ULICA 3
#define NUMER 4
#define KOD 5
#define MIEJSCOw 6
#define TELEFON 7
#define EMAIL 8
#define DATA_UR 9
long loadFile(FILE *pFile, long *errcount);
static int loadValues(char *line, long lineno);
static char delim;
long loadFile(FILE *pFile, long *errcount){
char sInputBuf [BUFFER_SIZE];
long lineno = 0L;
if(pFile == NULL)
return RET_FAIL;
while (!feof(pFile)) {
// load line into static buffer
if(fgets(sInputBuf, BUFFER_SIZE-1, pFile)==NULL)
break;
// skip first line (headers)
if(++lineno==1)
continue;
// jump over empty lines
if(strlen(sInputBuf)==0)
continue;
// set pFields array pointers to null-terminated string fields in sInputBuf
if(loadValues(sInputBuf,lineno)==RET_FAIL){
(*errcount)++;
if(*errcount > MAXERRS)
break;
} else {
// On return pFields array pointers point to loaded fields ready for load into DB or whatever
// Fields can be accessed via pFields, e.g.
printf("lp=%s, imie=%s, data_ur=%s\n", pFields[LP], pFields[IMIE], pFields[DATA_UR]);
}
}
return lineno;
}
static int loadValues(char *line, long lineno){
if(line == NULL)
return RET_FAIL;
// chop of last char of input if it is a CR or LF (e.g.Windows file loading in Unix env.)
// can be removed if sure fgets has removed both CR and LF from end of line
if(*(line + strlen(line)-1) == '\r' || *(line + strlen(line)-1) == '\n')
*(line + strlen(line)-1) = '\0';
if(*(line + strlen(line)-1) == '\r' || *(line + strlen(line)-1 )== '\n')
*(line + strlen(line)-1) = '\0';
char *cptr = line;
int fld = 0;
int inquote = FALSE;
char ch;
pFields[fld]=cptr;
while((ch=*cptr) != '\0' && fld < NUM_FIELDS){
if(ch == '"') {
if(! inquote)
pFields[fld]=cptr+1;
else {
*cptr = '\0'; // zero out " and jump over it
}
inquote = ! inquote;
} else if(ch == delim && ! inquote){
*cptr = '\0'; // end of field, null terminate it
pFields[++fld]=cptr+1;
}
cptr++;
}
if(fld > NUM_FIELDS-1){
fprintf(stderr, "Expected field count (%d) exceeded on line %ld\n", NUM_FIELDS, lineno);
return RET_FAIL;
} else if (fld < NUM_FIELDS-1){
fprintf(stderr, "Expected field count (%d) not reached on line %ld\n", NUM_FIELDS, lineno);
return RET_FAIL;
}
return RET_OK;
}
int main(int argc, char **argv)
{
FILE *fp;
long errcount = 0L;
long lines = 0L;
if(argc!=3){
printf("Usage: %s csvfilepath delimiter\n", basename(argv[0]));
return (RET_FAIL);
}
if((delim=argv[2][0])=='\0'){
fprintf(stderr,"delimiter must be specified\n");
return (RET_FAIL);
}
fp = fopen(argv[1] , "r");
if(fp == NULL) {
fprintf(stderr,"Error opening file: %d\n",errno);
return(RET_FAIL);
}
lines=loadFile(fp,&errcount);
fclose(fp);
printf("Processed %ld lines, encountered %ld error(s)\n", lines, errcount);
if(errcount>0)
return(RET_FAIL);
return(RET_OK);
}
For Python 2 try:
print unicode(string, 'unicode-escape')
For Python 3 try:
import os
string = "002 Could've Would've Should've"
os.system('echo ' + string)
Or try win-unicode-console:
pip install win-unicode-console
py -mrun your_script.py
It depends what you are looking for, if you are just looking to see if it is empty just use empty
as it checks whether it is set as well, if you want to know whether something is set or not use isset
.
Empty
checks if the variable is set and if it is it checks it for null, "", 0, etc
Isset
just checks if is it set, it could be anything not null
With empty
, the following things are considered empty:
From http://php.net/manual/en/function.empty.php
As mentioned in the comments the lack of warning is also important with empty()
PHP Manual says
empty() is the opposite of (boolean) var, except that no warning is generated when the variable is not set.
Regarding isset
PHP Manual says
isset() will return FALSE if testing a variable that has been set to NULL
Your code would be fine as:
<?php
$var = '23';
if (!empty($var)){
echo 'not empty';
}else{
echo 'is not set or empty';
}
?>
For example:
$var = "";
if(empty($var)) // true because "" is considered empty
{...}
if(isset($var)) //true because var is set
{...}
if(empty($otherVar)) //true because $otherVar is null
{...}
if(isset($otherVar)) //false because $otherVar is not set
{...}
I found a function called sleep function on the internet and don't know who made it. Here it is.
function sleep(milliseconds) {
var start = new Date().getTime();
for (var i = 0; i < 1e7; i++) {
if ((new Date().getTime() - start) > milliseconds){
break;
}
}
}
sleep(2000);
Here are few pointers/suggestions for investigation
vote
method which creates a fresh HTTP connection.HttpClient
instance to post to the server. This way it wont create too many connections from the client side. HttpClient
needs to be shut and hence call httpclient.getConnectionManager().shutdown();
to release the resources used by the connections. Try to reinstall cygwin with selected package:gcc-g++ : gnu compiler collection c++ (from devel category), openssh server and client program (net), make: the gnu version (devel), ncurses terminal (utils), enhanced vim editors (editors), an ANSI common lisp implementation (math) and libncurses-devel (lib).
This library files should be under cygwin\usr\include
Regards.
$json empty
public function deleteUser($extid)
{
$path = "/rest/user/".$extid."/;token=".$this->__token;
$result = $this->curl_req($path,"**$json**","DELETE");
return $result;
}
You can read about it here.
return render_template('page.html'), 201
To complete other answers:
Synchronization is only a worry when the code in your method does one of two things:
This means that variables defined WITHIN your method are always threadsafe. Every call to a method has its own version of these variables. If the method is called by another thread, or by the same thread, or even if the method calls itself (recursion), the values of these variables are not shared.
Thread scheduling is not guaranteed to be round-robin. A task may totally hog the CPU at the expense of threads of the same priority. You can use Thread.yield() to have a conscience. You can use (in java) Thread.setPriority(Thread.NORM_PRIORITY-1) to lower a thread's priority
Plus beware of:
I. Plain XSLT 1.0 solution:
This transformation:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="text()" name="split">
<xsl:param name="pText" select="."/>
<xsl:if test="string-length($pText)">
<xsl:if test="not($pText=.)">
<br />
</xsl:if>
<xsl:value-of select=
"substring-before(concat($pText,';'),';')"/>
<xsl:call-template name="split">
<xsl:with-param name="pText" select=
"substring-after($pText, ';')"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
when applied on this XML document:
<t>123 Elm Street;PO Box 222;c/o James Jones</t>
produces the wanted, corrected result:
123 Elm Street<br />PO Box 222<br />c/o James Jones
II. FXSL 1 (for XSLT 1.0):
Here we just use the FXSL template str-map
(and do not have to write recursive template for the 999th time):
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:f="http://fxsl.sf.net/"
xmlns:testmap="testmap"
exclude-result-prefixes="xsl f testmap"
>
<xsl:import href="str-dvc-map.xsl"/>
<testmap:testmap/>
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="/">
<xsl:variable name="vTestMap" select="document('')/*/testmap:*[1]"/>
<xsl:call-template name="str-map">
<xsl:with-param name="pFun" select="$vTestMap"/>
<xsl:with-param name="pStr" select=
"'123 Elm Street;PO Box 222;c/o James Jones'"/>
</xsl:call-template>
</xsl:template>
<xsl:template name="replace" mode="f:FXSL"
match="*[namespace-uri() = 'testmap']">
<xsl:param name="arg1"/>
<xsl:choose>
<xsl:when test="not($arg1=';')">
<xsl:value-of select="$arg1"/>
</xsl:when>
<xsl:otherwise><br /></xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
when this transformation is applied on any XML document (not used), the same, wanted correct result is produced:
123 Elm Street<br/>PO Box 222<br/>c/o James Jones
III. Using XSLT 2.0
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="text()">
<xsl:for-each select="tokenize(.,';')">
<xsl:sequence select="."/>
<xsl:if test="not(position() eq last())"><br /></xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
when this transformation is applied on this XML document:
<t>123 Elm Street;PO Box 222;c/o James Jones</t>
the wanted, correct result is produced:
123 Elm Street<br />PO Box 222<br />c/o James Jones
In the syntax s/foo/bar
, \r
and \n
have different meanings, depending on context.
For foo
:
\r
== "carriage return" (CR
/ ^M
)
\n
== matches "line feed" (LF
) on Linux/Mac, and CRLF
on Windows
For bar
:
\r
== produces LF
on Linux/Mac, CRLF
on Windows
\n
== "null byte" (NUL
/ ^@
)
When editing files in linux (i.e. on a webserver) that were initially created in a windows environment and uploaded (i.e. FTP/SFTP) - all the ^M
's you see in vim, are the CR
's which linux does not translate as it uses only LF
's to depict a line break.
NUL
== 0x00 == 0 == Ctrl + @ == ^@
shown in vim
LF
== 0x0A == 10 == Ctrl + J
CR
== 0x0D == 13 == Ctrl + M == ^M
shown in vim
Here is a list of the ASCII control characters. Insert them in Vim via Ctrl + V,Ctrl + ---key---.
In Bash or the other Unix/Linux shells, just type Ctrl + ---key---.
Try Ctrl + M in Bash. It's the same as hitting Enter, as the shell realizes what is meant, even though Linux systems use line feeds for line delimiting.
To insert literal's in bash, prepending them with Ctrl + V will also work.
Try in Bash:
echo ^[[33;1mcolored.^[[0mnot colored.
This uses ANSI escape sequences. Insert the two ^[
's via Ctrl + V, Esc.
You might also try Ctrl + V,Ctrl + M, Enter, which will give you this:
bash: $'\r': command not found
Remember the \r
from above? :>
This ASCII control characters list is different from a complete ASCII symbol table, in that the control characters, which are inserted into a console/pseudoterminal/Vim via the Ctrl key (haha), can be found there.
Whereas in C and most other languages, you usually use the octal codes to represent these 'characters'.
If you really want to know where all this comes from: The TTY demystified. This is the best link you will come across about this topic, but beware: There be dragons.
TL;DR
Usually foo
= \n
, and bar
= \r
.
@Mock
creates a mock. @InjectMocks
creates an instance of the class and injects the mocks that are created with the @Mock
(or @Spy
) annotations into this instance.
Note you must use @RunWith(MockitoJUnitRunner.class)
or Mockito.initMocks(this)
to initialize these mocks and inject them (JUnit 4).
With JUnit 5, you must use @ExtendWith(MockitoExtension.class)
.
@RunWith(MockitoJUnitRunner.class) // JUnit 4
// @ExtendWith(MockitoExtension.class) for JUnit 5
public class SomeManagerTest {
@InjectMocks
private SomeManager someManager;
@Mock
private SomeDependency someDependency; // this will be injected into someManager
// tests...
}
For others looking for an answer to why a file is not readable especially on a sdcard, write the file like this first.. Notice the MODE_WORLD_READABLE
try {
FileOutputStream fos = Main.this.openFileOutput("exported_data.csv", MODE_WORLD_READABLE);
fos.write(csv.getBytes());
fos.close();
File file = Main.this.getFileStreamPath("exported_data.csv");
return file.getAbsolutePath();
} catch (Exception e) {
e.printStackTrace();
return null;
}
Step 1:
Install node module: npm install csvtojson --save
Step 2:
var Converter = require("csvtojson").Converter;
var converter = new Converter({});
converter.fromFile("./path-to-your-file.csv",function(err,result){
if(err){
console.log("Error");
console.log(err);
}
var data = result;
//to check json
console.log(data);
});
private void selectDOB() {
final Calendar calendar = Calendar.getInstance();
mYear = calendar.get(Calendar.YEAR);
mDay = calendar.get(Calendar.DATE);
mMonth = calendar.get(Calendar.MONTH);
DatePickerDialog datePickerDialog = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
@SuppressLint("LongLogTag")
@Override
public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
strDateOfBirth = (month + 1) + "-" + dayOfMonth + "-" + year;
//********************** check and set date with append 0 at starting***************************
if (dayOfMonth < 10) {
strNewDay = "0" + dayOfMonth;
} else {
strNewDay = dayOfMonth + "";
}
if (month + 1 < 10) {
strNewMonth = "0" + (month + 1);
} else {
strNewMonth = (month + 1) + "";
}
Log.e("strnewDay *****************", strNewDay + "");
Log.e("strNewMonth *****************", strNewMonth + "");
// etDateOfBirth.setText(dayOfMonth + " / " + (month + 1) + " / " + year);
etDateOfBirth.setText(strNewDay + " / " + strNewMonth + " / " + year);
Log.e("strDateOfBirth *******************", strDateOfBirth + "");
}
}, mYear, mMonth, mDay);
datePickerDialog.show();
//*************** input date of birth must be greater than or equal to 18 ************************************
Calendar maxDate = Calendar.getInstance();
maxDate.set(Calendar.DAY_OF_MONTH, mDay);
maxDate.set(Calendar.MONTH, mMonth);
maxDate.set(Calendar.YEAR, mYear - 18);
datePickerDialog.getDatePicker().setMaxDate(maxDate.getTimeInMillis());
//*************** input date of birth must be less than today date ************************************
// datePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis());
}
According to what I see by using .NET Reflector:
[Serializable, ComVisible(true)]
public abstract class DictionaryBase : IDictionary, ICollection, IEnumerable
{
// Fields
private Hashtable hashtable;
// Methods
protected DictionaryBase();
public void Clear();
.
.
.
}
Take note of these lines
// Fields
private Hashtable hashtable;
So we can be sure that DictionaryBase uses a HashTable internally.
In Angular 1.3 I would do this:
HTML:
<input ng-model="msg" ng-model-options="{debounce: 1000}">
Controller:
$scope.$watch('variableName', function(nVal, oVal) {
if (nVal !== oVal) {
myDebouncedFunction();
}
});
Basically you're telling angular to run myDebouncedFunction()
, when the the msg
scope variable changes. The attribute ng-model-options="{debounce: 1000}"
makes sure that msg
can only update once a second.
For the date, you can use datetime.date.today()
or datetime.datetime.now().date()
.
For the time, you can use datetime.datetime.now().time()
.
However, why have separate fields for these in the first place? Why not use a single DateTimeField
?
You can always define helper functions on the model that return the .date()
or .time()
later if you only want one or the other.
New average = old average * (n-1)/n + new value /n
This is assuming the count only changed by one value. In case it is changed by M values then:
new average = old average * (n-len(M))/n + (sum of values in M)/n).
This is the mathematical formula (I believe the most efficient one), believe you can do further code by yourselves
replace required
by required="required"
If your system has multiple version of Mysql then you are likely going to hit this PID error
we can begin with killing all MySQL process
sudo killall mysqld
Go to /usr/local choose which MySQL version you want to have, then provide the MySQL permission to that. In my case I needed version 8.
sudo chown -R mysql mysql-8.0.21-macos10.15-x86_64
Go to the folder /usr/local/mysql-8.0.21-macos10.15-x86_64 & start SQL server
(Enter your laptop password) If it gives below output... the PID issue is solved
sudo ./mysql.server start
@xxxx-M-R0SU support-files $ sudo ./mysql.server start Starting MySQL .. SUCCESS!
One way is to use the Grid's select()
and dataItem()
methods.
In single selection case, select()
will return a single row which can be passed to dataItem()
var entityGrid = $("#EntitesGrid").data("kendoGrid");
var selectedItem = entityGrid.dataItem(entityGrid.select());
// selectedItem has EntityVersionId and the rest of your model
For multiple row selection select()
will return an array of rows. You can then iterate through the array and the individual rows can be passed into the grid's dataItem()
.
var entityGrid = $("#EntitesGrid").data("kendoGrid");
var rows = entityGrid.select();
rows.each(function(index, row) {
var selectedItem = entityGrid.dataItem(row);
// selectedItem has EntityVersionId and the rest of your model
});
maps.google.com has a navigation service which can provide you route information in KML format.
To get kml file we need to form url with start and destination locations:
public static String getUrl(double fromLat, double fromLon,
double toLat, double toLon) {// connect to map web service
StringBuffer urlString = new StringBuffer();
urlString.append("http://maps.google.com/maps?f=d&hl=en");
urlString.append("&saddr=");// from
urlString.append(Double.toString(fromLat));
urlString.append(",");
urlString.append(Double.toString(fromLon));
urlString.append("&daddr=");// to
urlString.append(Double.toString(toLat));
urlString.append(",");
urlString.append(Double.toString(toLon));
urlString.append("&ie=UTF8&0&om=0&output=kml");
return urlString.toString();
}
Next you will need to parse xml (implemented with SAXParser) and fill data structures:
public class Point {
String mName;
String mDescription;
String mIconUrl;
double mLatitude;
double mLongitude;
}
public class Road {
public String mName;
public String mDescription;
public int mColor;
public int mWidth;
public double[][] mRoute = new double[][] {};
public Point[] mPoints = new Point[] {};
}
Network connection is implemented in different ways on Android and Blackberry, so you will have to first form url:
public static String getUrl(double fromLat, double fromLon,
double toLat, double toLon)
then create connection with this url and get InputStream.
Then pass this InputStream and get parsed data structure:
public static Road getRoute(InputStream is)
Full source code RoadProvider.java
class MapPathScreen extends MainScreen {
MapControl map;
Road mRoad = new Road();
public MapPathScreen() {
double fromLat = 49.85, fromLon = 24.016667;
double toLat = 50.45, toLon = 30.523333;
String url = RoadProvider.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
map = new MapControl();
add(new LabelField(mRoad.mName));
add(new LabelField(mRoad.mDescription));
add(map);
}
protected void onUiEngineAttached(boolean attached) {
super.onUiEngineAttached(attached);
if (attached) {
map.drawPath(mRoad);
}
}
private InputStream getConnection(String url) {
HttpConnection urlConnection = null;
InputStream is = null;
try {
urlConnection = (HttpConnection) Connector.open(url);
urlConnection.setRequestMethod("GET");
is = urlConnection.openInputStream();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
}
See full code on J2MEMapRouteBlackBerryEx on Google Code
public class MapRouteActivity extends MapActivity {
LinearLayout linearLayout;
MapView mapView;
private Road mRoad;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
new Thread() {
@Override
public void run() {
double fromLat = 49.85, fromLon = 24.016667;
double toLat = 50.45, toLon = 30.523333;
String url = RoadProvider
.getUrl(fromLat, fromLon, toLat, toLon);
InputStream is = getConnection(url);
mRoad = RoadProvider.getRoute(is);
mHandler.sendEmptyMessage(0);
}
}.start();
}
Handler mHandler = new Handler() {
public void handleMessage(android.os.Message msg) {
TextView textView = (TextView) findViewById(R.id.description);
textView.setText(mRoad.mName + " " + mRoad.mDescription);
MapOverlay mapOverlay = new MapOverlay(mRoad, mapView);
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
mapView.invalidate();
};
};
private InputStream getConnection(String url) {
InputStream is = null;
try {
URLConnection conn = new URL(url).openConnection();
is = conn.getInputStream();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return is;
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
}
See full code on J2MEMapRouteAndroidEx on Google Code
In the accepted answer I find the optionals cumbersome. This works with Swift 3 and seems to have no problem with emojis.
func textField(_ textField: UITextField,
shouldChangeCharactersIn range: NSRange,
replacementString string: String) -> Bool {
guard let value = textField.text else {return false} // there may be a reason for returning true in this case but I can't think of it
// now value is a String, not an optional String
let valueAfterChange = (value as NSString).replacingCharacters(in: range, with: string)
// valueAfterChange is a String, not an optional String
// now do whatever processing is required
return true // or false, as required
}
It means somewhere in your chain of calls, you tried to access a Property or call a method on an object that was null
.
Given your statement:
img1.ImageUrl = ConfigurationManager
.AppSettings
.Get("Url")
.Replace("###", randomString)
+ Server.UrlEncode(
((System.Web.UI.MobileControls.Form)Page
.FindControl("mobileForm"))
.Title);
I'm guessing either the call to AppSettings.Get("Url")
is returning null because the value isn't found or the call to Page.FindControl("mobileForm")
is returning null because the control isn't found.
You could easily break this out into multiple statements to solve the problem:
var configUrl = ConfigurationManager.AppSettings.Get("Url");
var mobileFormControl = Page.FindControl("mobileForm")
as System.Web.UI.MobileControls.Form;
if(configUrl != null && mobileFormControl != null)
{
img1.ImageUrl = configUrl.Replace("###", randomString) + mobileControl.Title;
}
UPDATE: This is only true if you use ONLYOFFICE instead of MS Excel.
There is actually a flow in all answers provided here and also in the accepted one. The flow is that whenever you have an empty cell in excel and copy that, in the clipboard you have 2 tab chars next to each other, so after splitting you get one additional item in array, which then appears as an extra cell in that row and moves all other cells by one. So to avoid that you basically need to replace all double tab (tabs next to each other only) chars in a string with one tab char and only then split it.
An updated version of @userfuser's jsfiddle is here to fix that issue by filtering pasted data with removeExtraTabs
http://jsfiddle.net/sTX7y/794/
function removeExtraTabs(string) {
return string.replace(new RegExp("\t\t", 'g'), "\t");
}
function generateTable() {
var data = removeExtraTabs($('#pastein').val());
var rows = data.split("\n");
var table = $('<table />');
for (var y in rows) {
var cells = rows[y].split("\t");
var row = $('<tr />');
for (var x in cells) {
row.append('<td>' + cells[x] + '</td>');
}
table.append(row);
}
// Insert into DOM
$('#excel_table').html(table);
}
$(document).ready(function() {
$('#pastein').on('paste', function(event) {
$('#pastein').on('input', function() {
generateTable();
$('#pastein').off('input');
})
})
})
These are the very basic pivot example kindly go through that.
SQL SERVER – PIVOT and UNPIVOT Table Examples
Example from above link for the product table:
SELECT PRODUCT, FRED, KATE
FROM (
SELECT CUST, PRODUCT, QTY
FROM Product) up
PIVOT (SUM(QTY) FOR CUST IN (FRED, KATE)) AS pvt
ORDER BY PRODUCT
renders:
PRODUCT FRED KATE
--------------------
BEER 24 12
MILK 3 1
SODA NULL 6
VEG NULL 5
Similar examples can be found in the blog post Pivot tables in SQL Server. A simple sample
protected void Application_AcquireRequestState(object sender, EventArgs e)
{
if(Context.Session!= null)
Thread.CurrentThread.CurrentCulture =
Thread.CurrentThread.CurrentUICulture = (Context.Session["culture"] ?? (Context.Session["culture"] = new CultureInfo("pt-BR"))) as CultureInfo;
}
Important!
Most of answers here works for particular cases.
If you don't care about deep/nested objects and props use (ES6):
let clonedArray = [...array]
but if you want to do deep clone use this instead:
let cloneArray = JSON.parse(JSON.stringify(array))
For lodash users:
let clonedArray = _.clone(array)
documentation
and
let clonedArray = _.cloneDeep(array)
documentation
If you are running this inside a transaction and a SQL statement before this drops/alters the table you can also get this message.
I had that problem when I upgraded Postgres to 9.3.x. The quick fix for me was to downgrade to whichever 9.2.x version I had before (no need to install a new one).
$ ls /usr/local/Cellar/postgresql/
9.2.4
9.3.2
$ brew switch postgresql 9.2.4
$ launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
<open a new Terminal tab or window to reload>
$ psql
"Homebrew install specific version of formula?" offers a much more comprehensive explanation along with alternative ways to fix the problem.
This stuff comes from ES file explorer
Just go into this app > settings
Then there is an option that says logging floating window, you just need to disable that and you will get rid of this infernal bubble for good
IF you are using MyEclipse and want to add args before run the program, Then do as follows: 1.0) Run -> Run Config 2.1) Click "Arguments" on the right panel 2.2)add your args in the "Program Args" box, separated by blank
Try this, pick or create one column and make that value required so that it's always populated such as title. A field that doesn't hold the name of the folder. Then in your filter put the filter you wanted that will select only the files you want. Then add an or to your filter, select your "required" field then set it equal to and leave the filter blank. Since all folders will have a blank in this required field your folders will show up with your files.
You can use css float
<div style='float: left;'><a href="login.php">Log in</a></div>
<div style='float: right;'><a href="home.php">Back to Home</a></div>
Have a look at this CSS Positioning
The other scenario you mush verify is that the file you're trying to unpack is not empty and is valid.
In my case I wasn't downloading the file correctly, after double check and I made sure I had the right file I could unpack it without any issues.
The problem is that you can't use a list
as the key in a dict
, since dict
keys need to be immutable. Use a tuple instead.
This is a list:
[x, y]
This is a tuple:
(x, y)
Note that in most cases, the (
and )
are optional, since ,
is what actually defines a tuple (as long as it's not surrounded by []
or {}
, or used as a function argument).
You might find the section on tuples in the Python tutorial useful:
Though tuples may seem similar to lists, they are often used in different situations and for different purposes. Tuples are immutable, and usually contain an heterogeneous sequence of elements that are accessed via unpacking (see later in this section) or indexing (or even by attribute in the case of namedtuples). Lists are mutable, and their elements are usually homogeneous and are accessed by iterating over the list.
And in the section on dictionaries:
Unlike sequences, which are indexed by a range of numbers, dictionaries are indexed by keys, which can be any immutable type; strings and numbers can always be keys. Tuples can be used as keys if they contain only strings, numbers, or tuples; if a tuple contains any mutable object either directly or indirectly, it cannot be used as a key. You can’t use lists as keys, since lists can be modified in place using index assignments, slice assignments, or methods like append() and extend().
In case you're wondering what the error message means, it's complaining because there's no built-in hash function for lists (by design), and dictionaries are implemented as hash tables.
For me, the node
binary is in PATH
and I can run it from the terminal (iTerm or Terminal), and the Terminal apps are set to use zsh
If you are on a Mac, with iTerm and Zsh, please use the following VSCode settings for Node to work.
After this change, you can get rid of this line from your launch.json
config file. (the debug settings in VSCode)
"runtimeExecutable": "/usr/local/bin/node"
If this doesn't work, make sure you choose the default shell as zsh
. To do this,
The getting and setting of variables within classes refers to either retrieving ("getting") or altering ("setting") their contents.
Consider a variable members
of a class family
. Naturally, this variable would need to be an integer, since a family can never consist of two point something people.
So you would probably go ahead by defining the members
variable like this:
class family {
var members:Int
}
This, however, will give people using this class the possibility to set the number of family members to something like 0 or 1. And since there is no such thing as a family of 1 or 0, this is quite unfortunate.
This is where the getters and setters come in. This way you can decide for yourself how variables can be altered and what values they can receive, as well as deciding what content they return.
Returning to our family class, let's make sure nobody can set the members
value to anything less than 2:
class family {
var _members:Int = 2
var members:Int {
get {
return _members
}
set (newVal) {
if newVal >= 2 {
_members = newVal
} else {
println('error: cannot have family with less than 2 members')
}
}
}
}
Now we can access the members
variable as before, by typing instanceOfFamily.members
, and thanks to the setter function, we can also set it's value as before, by typing, for example: instanceOfFamily.members = 3
. What has changed, however, is the fact that we cannot set this variable to anything smaller than 2 anymore.
Note the introduction of the _members
variable, which is the actual variable to store the value that we set through the members
setter function. The original members
has now become a computed property, meaning that it only acts as an interface to deal with our actual variable.
a = 10.1234
print(f"{a:0.2f}")
in 0.2f:
A detailed video on f-string for numbers https://youtu.be/RtKUsUTY6to?t=606
Wrote a glitch workspace that iterates over all the codepoints and emit the character if eval('var ' + String.fromCodePoint(#) + ' = 1')
works.
It just keeps going, and going, and going....
I stumbled upon a similar problem as OP. Unfortunately the accepted answer did not work for me since the content of the collectionView
would not be centered properly. Therefore I came up with a different solution which only requires that all items in the collectionView
are of the same width, which seems to be the case in the question:
#define cellSize 90
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
float width = collectionView.frame.size.width;
float spacing = [self collectionView:collectionView layout:collectionViewLayout minimumInteritemSpacingForSectionAtIndex:section];
int numberOfCells = (width + spacing) / (cellSize + spacing);
int inset = (width + spacing - numberOfCells * (cellSize + spacing) ) / 2;
return UIEdgeInsetsMake(0, inset, 0, inset);
}
That code will ensure that the value returned by ...minimumInteritemSpacing...
will be the exact spacing between every collectionViewCell
and furthermore guarantee that the cells all together will be centered in the collectionView
You can make use of the first-child selector
<div class="sidebar">
<div class="box">
<p>
Text is here
</p>
</div>
<div class="box">
<p>
Text is here
</p>
</div>
</div>
and in CSS
.box {
padding: 10px;
text-align: justify;
margin-top: 20px;
}
.box:first-child {
margin-top: none;
}
cd /opt/gitlab
cat version-manifest.txt
Example:
gitlab-ctl 6.8.2-omnibus
gitlab-rails v6.8.2
Current gitlab version is 6.8.2