It depends on whether you process IDNs before or after the IDN toASCII
algorithm (that is, do you see the domain name pa??de??µa.d???µ?
in Greek or as xn--hxajbheg2az3al.xn--jxalpdlp
?).
In the latter case—where you are handling IDNs through the punycode—the old RFC 1123 rules apply:
U+0041 through U+005A (A-Z), U+0061 through U+007A (a-z) case folded as each other, U+0030 through U+0039 (0-9) and U+002D (-).
and U+002E (.) of course; the rules for labels allow the others, with dots between labels.
If you are seeing it in IDN form, the allowed characters are much varied, see http://unicode.org/reports/tr36/idn-chars.html for a handy chart of all valid characters.
Chances are your network code will deal with the punycode, but your display code (or even just passing strings to and from other layers) with the more human-readable form as nobody running a server on the ????????. domain wants to see their server listed as being on .xn--mgberp4a5d4ar
.
public class AesCryptoService
{
private static byte[] Key = Encoding.ASCII.GetBytes(@"qwr{@^h`h&_`50/ja9!'dcmh3!uw<&=?");
private static byte[] IV = Encoding.ASCII.GetBytes(@"9/\~V).A,lY&=t2b");
public static string EncryptStringToBytes_Aes(string plainText)
{
if (plainText == null || plainText.Length <= 0)
throw new ArgumentNullException("plainText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
byte[] encrypted;
using (AesCryptoServiceProvider aesAlg = new AesCryptoServiceProvider())
{
aesAlg.Key = Key;
aesAlg.IV = IV;
aesAlg.Mode = CipherMode.CBC;
aesAlg.Padding = PaddingMode.PKCS7;
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msEncrypt = new MemoryStream())
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
{
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
return Convert.ToBase64String(encrypted);
}
public static string DecryptStringFromBytes_Aes(string Text)
{
if (Text == null || Text.Length <= 0)
throw new ArgumentNullException("cipherText");
if (Key == null || Key.Length <= 0)
throw new ArgumentNullException("Key");
if (IV == null || IV.Length <= 0)
throw new ArgumentNullException("IV");
string plaintext = null;
byte[] cipherText = Convert.FromBase64String(Text.Replace(' ', '+'));
using (AesCryptoServiceProvider aesAlg = new AesCryptoServiceProvider())
{
aesAlg.Key = Key;
aesAlg.IV = IV;
aesAlg.Mode = CipherMode.CBC;
aesAlg.Padding = PaddingMode.PKCS7;
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(cipherText))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
using (StreamReader srDecrypt = new StreamReader(csDecrypt))
{
plaintext = srDecrypt.ReadToEnd();
}
}
}
}
return plaintext;
}
}
I found this answer on another forum, works perfect. No problems with finding 1 if there is also a 10
WHERE tablename REGEXP "(^|,)@search(,|$)"
I install finished! It's worked!
You may be do base install imagemagick on windows.
In php (local)
use call exec(<command line>)
ex:
<?php
$pdf = "filename.pdf";
$info = pathinfo($pdf);
$file_name = basename($pdf,'.'.$info['extension']);
echo $file_name;
$pdf = "filename.pdf[0]";
exec("convert $pdf convert-img/$file_name.jpg");
?>
Besides, you may be use class imagick
in PHP Imagick class
Thanks all helped me!
I solved this way, when I had to use the foreach index and value in the same context:
$array = array('a', 'b', 'c');
foreach ($array as $letter=>$index) {
echo $letter; //Here $letter content is the actual index
echo $array[$letter]; // echoes the array value
}//foreach
this is a example for Horizontal and Vertical alignment simultaneously
<View style={{width: 200, flexDirection: 'row',alignItems: 'center'}}>
<Text style={{width: '100%',textAlign: 'center'}} />
</View>
An addition to Stewie's answer. In case when your callback decides whether the propagation should be stopped or not, I found it useful to pass the $event
object to the callback:
<div ng-click="parentHandler($event)">
<div ng-click="childHandler($event)">
</div>
</div>
And then in the callback itself, you can decide whether the propagation of the event should be stopped:
$scope.childHandler = function ($event) {
if (wanna_stop_it()) {
$event.stopPropagation();
}
...
};
See https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page for "BEGIN RSA PRIVATE KEY") (archive link for posterity, just in case).
BEGIN RSA PRIVATE KEY
is PKCS#1 and is just an RSA key. It is essentially just the key object from PKCS#8, but without the version or algorithm identifier in front. BEGIN PRIVATE KEY
is PKCS#8 and indicates that the key type is included in the key data itself. From the link:
The unencrypted PKCS#8 encoded data starts and ends with the tags:
-----BEGIN PRIVATE KEY----- BASE64 ENCODED DATA -----END PRIVATE KEY-----
Within the base64 encoded data the following DER structure is present:
PrivateKeyInfo ::= SEQUENCE { version Version, algorithm AlgorithmIdentifier, PrivateKey BIT STRING } AlgorithmIdentifier ::= SEQUENCE { algorithm OBJECT IDENTIFIER, parameters ANY DEFINED BY algorithm OPTIONAL }
So for an RSA private key, the OID is 1.2.840.113549.1.1.1 and there is a RSAPrivateKey as the PrivateKey key data bitstring.
As opposed to BEGIN RSA PRIVATE KEY
, which always specifies an RSA key and therefore doesn't include a key type OID. BEGIN RSA PRIVATE KEY
is PKCS#1
:
RSA Private Key file (PKCS#1)
The RSA private key PEM file is specific for RSA keys.
It starts and ends with the tags:
-----BEGIN RSA PRIVATE KEY----- BASE64 ENCODED DATA -----END RSA PRIVATE KEY-----
Within the base64 encoded data the following DER structure is present:
RSAPrivateKey ::= SEQUENCE { version Version, modulus INTEGER, -- n publicExponent INTEGER, -- e privateExponent INTEGER, -- d prime1 INTEGER, -- p prime2 INTEGER, -- q exponent1 INTEGER, -- d mod (p-1) exponent2 INTEGER, -- d mod (q-1) coefficient INTEGER, -- (inverse of q) mod p otherPrimeInfos OtherPrimeInfos OPTIONAL }
Probably the best way is to use Guava
List<String> list = new ArrayList<String>();
list.add("How are you");
list.add("How you doing");
list.add("Joe");
list.add("Mike");
Collection<String> filtered = Collections2.filter(list,
Predicates.containsPattern("How"));
print(filtered);
prints
How are you
How you doing
In case you want to get the filtered collection as a list, you can use this (also from Guava):
List<String> filteredList = Lists.newArrayList(Collections2.filter(
list, Predicates.containsPattern("How")));
How about this:
$(this).css('background-color', '#FFFFFF');
Related post: Add background color and border to table row on hover using jquery
The wait()
and notify()
methods are designed to provide a mechanism to allow a thread to block until a specific condition is met. For this I assume you're wanting to write a blocking queue implementation, where you have some fixed size backing-store of elements.
The first thing you have to do is to identify the conditions that you want the methods to wait for. In this case, you will want the put()
method to block until there is free space in the store, and you will want the take()
method to block until there is some element to return.
public class BlockingQueue<T> {
private Queue<T> queue = new LinkedList<T>();
private int capacity;
public BlockingQueue(int capacity) {
this.capacity = capacity;
}
public synchronized void put(T element) throws InterruptedException {
while(queue.size() == capacity) {
wait();
}
queue.add(element);
notify(); // notifyAll() for multiple producer/consumer threads
}
public synchronized T take() throws InterruptedException {
while(queue.isEmpty()) {
wait();
}
T item = queue.remove();
notify(); // notifyAll() for multiple producer/consumer threads
return item;
}
}
There are a few things to note about the way in which you must use the wait and notify mechanisms.
Firstly, you need to ensure that any calls to wait()
or notify()
are within a synchronized region of code (with the wait()
and notify()
calls being synchronized on the same object). The reason for this (other than the standard thread safety concerns) is due to something known as a missed signal.
An example of this, is that a thread may call put()
when the queue happens to be full, it then checks the condition, sees that the queue is full, however before it can block another thread is scheduled. This second thread then take()
's an element from the queue, and notifies the waiting threads that the queue is no longer full. Because the first thread has already checked the condition however, it will simply call wait()
after being re-scheduled, even though it could make progress.
By synchronizing on a shared object, you can ensure that this problem does not occur, as the second thread's take()
call will not be able to make progress until the first thread has actually blocked.
Secondly, you need to put the condition you are checking in a while loop, rather than an if statement, due to a problem known as spurious wake-ups. This is where a waiting thread can sometimes be re-activated without notify()
being called. Putting this check in a while loop will ensure that if a spurious wake-up occurs, the condition will be re-checked, and the thread will call wait()
again.
As some of the other answers have mentioned, Java 1.5 introduced a new concurrency library (in the java.util.concurrent
package) which was designed to provide a higher level abstraction over the wait/notify mechanism. Using these new features, you could rewrite the original example like so:
public class BlockingQueue<T> {
private Queue<T> queue = new LinkedList<T>();
private int capacity;
private Lock lock = new ReentrantLock();
private Condition notFull = lock.newCondition();
private Condition notEmpty = lock.newCondition();
public BlockingQueue(int capacity) {
this.capacity = capacity;
}
public void put(T element) throws InterruptedException {
lock.lock();
try {
while(queue.size() == capacity) {
notFull.await();
}
queue.add(element);
notEmpty.signal();
} finally {
lock.unlock();
}
}
public T take() throws InterruptedException {
lock.lock();
try {
while(queue.isEmpty()) {
notEmpty.await();
}
T item = queue.remove();
notFull.signal();
return item;
} finally {
lock.unlock();
}
}
}
Of course if you actually need a blocking queue, then you should use an implementation of the BlockingQueue interface.
Also, for stuff like this I'd highly recommend Java Concurrency in Practice, as it covers everything you could want to know about concurrency related problems and solutions.
This is what lambda is for:
def perform(f):
f()
perform(lambda: action1())
perform(lambda: action2(p))
perform(lambda: action3(p, r))
if you're connecting to a postgres database, the following works:
result = cursor.execute(query)
if result.returns_rows:
# we got rows!
return [{k:v for k,v in zip(result.keys(), r)} for r in result.rows]
else:
return None
When the normType
is NORM_MINMAX
, cv::normalize
normalizes _src
in such a way that the min value of dst
is alpha
and max value of dst
is beta
. cv::normalize
does its magic using only scales and shifts (i.e. adding constants and multiplying by constants).
CV_8UC1
says how many channels dst
has.
The documentation here is pretty clear: http://docs.opencv.org/modules/core/doc/operations_on_arrays.html#normalize
The parentheses capture particular strings for use by the backslashed numbers.
If you care about reading that will always return the objects in the order they are inserted in a Dictionary, you may have a look at
OrderedDictionary - values can be accessed via an integer index (by order in which items were added) SortedDictionary - items are automatically sorted
The current root password must be empty. Then under "new root password" enter your password and confirm.
You should do it this way ideally
t = TemperatureData.objects.get(id=1)
t.value = 999
t.save(['value'])
This allow you to specify which column should be saved and rest are left as they currently are in database. (https://code.djangoproject.com/ticket/4102)!
This is from my attempt on a coding challenge that can't use regex,
outputList = "".join((c if c.isalnum() or c=="'" else ' ') for c in inputStr ).split(' ')
The role of apostrophe seems interesting.
adb shell am broadcast -a android.intent.action.xxx
Mention xxx as the action that you mentioned in the manifest file.
To check if something does not exist in a string, you at least need to look at each character in a string. So even if you don't explicitly use a loop, it'll have the same efficiency. That being said, you can try using str.contains(""+char).
The main reason with HashMap not allowing primitive as keys is that HashMap is designed in such a way that for comparing the keys, it makes use of equals() method, and a method can be called only on an object not on a primitive.
Thus when int is autoboxed to Integer, Hashmap can call equals() method on Integer object.
That is why, you should use Integer instead of int. I mean hashmap throws an error while putting int as a key (Don't know the meaning of the error that is thrown)
And if you think that, you can make Map performance faster by making a primitive as a key, there is a library called FastUtil which contains a Map implementation with int type as a key.
Because of this, it is much faster than Hashmap
I tested in my version on PyCharm 2017.1.2. I used interactive (True) and show (block=True).
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
ts = pd.Series(np.random.randn(1000), index=pd.date_range('1//2000',periods=1000))
ts = ts.cumsum()
plt.interactive(True)
ts.plot()
plt.show(block=True)
Here, I will show you 2 different implementation:
First:
If you just need to create a duplicate table then just run the command:
SELECT top 0 * INTO [dbo].[DuplicateTable]
FROM [dbo].[MainTable]
Of course, it doesn't work completely. constraints don't get copied, nor do primary keys, or default values. The command only creates a new table with the same column structure and if you want to insert data into the new table.
Second (recommended):
But If you want to duplicate the table with all its constraints & keys follows this below steps:
Why not skip the string altogether :
SqlDateTime myDateTime = DateTime.Now;
Use inline shell string replacement. Example:
foo=" "
# replace first blank only
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
Resolve the route to a URL and navigate the window with Javascript.
let r = this.$router.resolve({_x000D_
name: this.$route.name, // put your route information in_x000D_
params: this.$route.params, // put your route information in_x000D_
query: this.$route.query // put your route information in_x000D_
});_x000D_
window.location.assign(r.href)
_x000D_
This method replaces the URL and causes the page to do a full request (refresh) rather than relying on Vue.router. $router.go does not work the same for me even though it is theoretically supposed to.
Figure out the following:
echo $0
to find out (normally works)source ~/.nvm/nvm.sh
to that file (assuming that file exists at that location, it is the default install location)As you can see it states zsh
and not bash
.
To fix this I needed to add source ~/.nvm/nvm.sh
to the ~/.zshrc
file as when starting a new terminal my Deepin Terminal zsh reads ~/.zshrc
and not bashs ~/.bashrc
.
This happens because when installing NVM it adds code to ~/.bashrc
, as my terminal Deepin Terminal uses zsh
and not bash
it never reads ~/.bashrc
and therefor never loads NVM.
In other words: this is NVMs fault.
More on zsh
can be read on one of the answers here.
Run SDk Manager and install Android SDK Tools and Android SDK Platform-tools updates. ADB must be updated to a new version for 4.2.x
You clone a repository with git clone [url]. Like so,
$ git clone https://github.com/libgit2/libgit2
Simple way:
BufferedImage readImage = null;
try {
readImage = ImageIO.read(new File(your path);
int h = readImage.getHeight();
int w = readImage.getWidth();
} catch (Exception e) {
readImage = null;
}
I just had that problem (Java 1.8 vs. Java 9 on Windows 7) and my findings are:
short version
default seems to be (because of Path entry)
c:\ProgramData\Oracle\Java\javapath\java -version
select the version you want (test, use tab completing in cmd, not sure what those numbers represent), I had 2 options, see longer version for details
c:\ProgramData\Oracle\Java\javapath_target_[tab]
remove junction/link and link to your version (the one ending with 181743567 in my case for Java 8)
rmdir javapath
mklink /D javapath javapath_target_181743567
longer version:
Reinstall Java 1.8 after Java 9 didn't work. The sequence of installations was jdk1.8.0_74, jdk-9.0.4 and attempt to make Java 8 default with jdk1.8.0_162...
After jdk1.8.0_162 installation I still have
java -version
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
What I see in path is
Path=...;C:\ProgramData\Oracle\Java\javapath;...
So I checked what is that and I found it is a junction (link)
c:\ProgramData\Oracle\Java>dir
Volume in drive C is OSDisk
Volume Serial Number is DA2F-C2CC
Directory of c:\ProgramData\Oracle\Java
2018-02-07 17:06 <DIR> .
2018-02-07 17:06 <DIR> ..
2018-02-08 17:08 <DIR> .oracle_jre_usage
2017-08-22 11:04 <DIR> installcache
2018-02-08 17:08 <DIR> installcache_x64
2018-02-07 17:06 <JUNCTION> javapath [C:\ProgramData\Oracle\Java\javapath_target_185258831]
2018-02-07 17:06 <DIR> javapath_target_181743567
2018-02-07 17:06 <DIR> javapath_target_185258831
Those hashes doesn't ring a bell, but when I checked
c:\ProgramData\Oracle\Java\javapath_target_181743567>.\java -version
java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)
c:\ProgramData\Oracle\Java\javapath_target_185258831>.\java -version
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
so to make Java 8 default again I had to delete the link as described here
rmdir javapath
and recreate with Java I wanted
mklink /D javapath javapath_target_181743567
tested:
c:\ProgramData\Oracle\Java>java -version
java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)
** update (Java 10) **
With Java 10 it is similar, only javapath is in c:\Program Files (x86)\Common Files\Oracle\Java\ which is strange as I installed 64-bit IMHO
.\java -version
java version "10.0.2" 2018-07-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)
Updating/completing zszep answer:
After copying the request as cUrl (bash), simply import it in the Postman App:
Align by - Obviously I'm bias since I wrote it but it's the extension I use more than any other.
If you've scrolled far enough to reach this answer, I wrote a library for equal spacing which supports Vertical/Horizontal, LTR/RTL, LinearLayout/GridLayout manager and Edge inclusion. Its basically a single file, so you can copy paste that file into your code.
I tried to support StaggeredGridLayout
but span index returned by this layout is not reliable. I would be glad to hear any suggestion for that.
You're close, you just need to delete the file before trying to over-write it.
dim infolder: set infolder = fso.GetFolder(IN_PATH)
dim file: for each file in infolder.Files
dim name: name = file.name
dim parts: parts = split(name, ".")
if UBound(parts) = 2 then
' file name like a.c.pdf
dim newname: newname = parts(0) & "." & parts(2)
dim newpath: newpath = fso.BuildPath(OUT_PATH, newname)
' warning:
' if we have source files C:\IN_PATH\ABC.01.PDF, C:\IN_PATH\ABC.02.PDF, ...
' only one of them will be saved as D:\OUT_PATH\ABC.PDF
if fso.FileExists(newpath) then
fso.DeleteFile newpath
end if
file.Move newpath
end if
next
Tested and working!
with https, user & password
<?php
//Data, connection, auth
$dataFromTheForm = $_POST['fieldName']; // request data from the form
$soapUrl = "https://connecting.website.com/soap.asmx?op=DoSomething"; // asmx URL of WSDL
$soapUser = "username"; // username
$soapPassword = "password"; // password
// xml post structure
$xml_post_string = '<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<GetItemPrice xmlns="http://connecting.website.com/WSDL_Service"> // xmlns value to be set to your WSDL URL
<PRICE>'.$dataFromTheForm.'</PRICE>
</GetItemPrice >
</soap:Body>
</soap:Envelope>'; // data from the form, e.g. some ID number
$headers = array(
"Content-type: text/xml;charset=\"utf-8\"",
"Accept: text/xml",
"Cache-Control: no-cache",
"Pragma: no-cache",
"SOAPAction: http://connecting.website.com/WSDL_Service/GetPrice",
"Content-length: ".strlen($xml_post_string),
); //SOAPAction: your op URL
$url = $soapUrl;
// PHP cURL for https connection with auth
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, $soapUser.":".$soapPassword); // username and password - declared at the top of the doc
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_post_string); // the SOAP request
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// converting
$response = curl_exec($ch);
curl_close($ch);
// converting
$response1 = str_replace("<soap:Body>","",$response);
$response2 = str_replace("</soap:Body>","",$response1);
// convertingc to XML
$parser = simplexml_load_string($response2);
// user $parser to get your data out of XML response and to display it.
?>
I'm not 100% on why (actually came here to search for the answer), but this also works, and doesn't require replacing all nan values.
import pandas as pd
import numpy as np
df = pd.DataFrame([["foo1"], ["foo2"], ["bar"], [np.nan]], columns=['a'])
newdf = df.loc[df['a'].str.contains('foo') == True]
Works with or without .loc
.
I have no idea why this works, as I understand it when you're indexing with brackets pandas evaluates whatever's inside the bracket as either True
or False
. I can't tell why making the phrase inside the brackets 'extra boolean' has any effect at all.
Can with defaulth value (T-SQL)
ALTER TABLE
Regions
ADD
HasPhotoInReadyStorage BIT NULL, --this column is nullable
HasPhotoInWorkStorage BIT NOT NULL, --this column is not nullable
HasPhotoInMaterialStorage BIT NOT NULL DEFAULT(0) --this column default value is false
GO
Go to the Ant website and download. This way, you have a copy of Ant outside of Eclipse. I recommend to put it under the C:\ant
directory. This way, it doesn't have any spaces in the directory names. In your System Control Panel, set the Environment Variable ANT_HOME
to this directory, then pre-pend to the System PATH
variable, %ANT_HOME%\bin
. This way, you don't have to put in the whole directory name.
Assuming you did the above, try this:
C:\> cd \Silk4J\Automation\iControlSilk4J
C:\Silk4J\Automation\iControlSilk4J> ant -d build
This will do several things:
build.xml
in the directory where it exists, you don't end up with the possibility that your Ant build can't locate a particular directory.The -d
will print out a lot of output, so you might want to capture it, or set your terminal buffer to something like 99999
, and run cls
first to clear out the buffer. This way, you'll capture all of the output from the beginning in the terminal buffer.
Let's see how Ant should be executing. You didn't specify any targets to execute, so Ant should be taking the default build
target. Here it is:
<target depends="build-subprojects,build-project" name="build"/>
The build
target does nothing itself. However, it depends upon two other targets, so these will be called first:
The first target is build-subprojects
:
<target name="build-subprojects"/>
This does nothing at all. It doesn't even have a dependency.
The next target specified is build-project
does have code:
<target depends="init" name="build-project">
This target does contain tasks, and some dependent targets. Before build-project
executes, it will first run the init
target:
<target name="init">
<mkdir dir="bin"/>
<copy includeemptydirs="false" todir="bin">
<fileset dir="src">
<exclude name="**/*.java"/>
</fileset>
</copy>
</target>
This target creates a directory called bin
, then copies all files under the src
tree with the suffix *.java
over to the bin
directory. The includeemptydirs
mean that directories without non-java code will not be created.
Ant uses a scheme to do minimal work. For example, if the bin
directory is created, the <mkdir/>
task is not executed. Also, if a file was previously copied, or there are no non-Java files in your src
directory tree, the <copy/>
task won't run. However, the init
target will still be executed.
Next, we go back to our previous build-project
target:
<target depends="init" name="build-project">
<echo message="${ant.project.name}: ${ant.file}"/>
<javac debug="true" debuglevel="${debuglevel}" destdir="bin" source="${source}" target="${target}">
<src path="src"/>
<classpath refid="iControlSilk4J.classpath"/>
</javac>
</target>
Look at this line:
<echo message="${ant.project.name}: ${ant.file}"/>
That should have always executed. Did your output print:
[echo] iControlSilk4J: C:\Silk4J\Automation\iControlSilk4J\build.xml
Maybe you didn't realize that was from your build.
After that, it runs the <javac/>
task. That is, if there's any files to actually compile. Again, Ant tries to avoid work it doesn't have to do. If all of the *.java
files have previously been compiled, the <javac/>
task won't execute.
And, that's the end of the build. Your build might not have done anything simply because there was nothing to do. You can try running the clean
task, and then build
:
C:\Silk4J\Automation\iControlSilk4J> ant -d clean build
However, Ant usually prints the target being executed. You should have seen this:
init:
build-subprojects:
build-projects:
[echo] iControlSilk4J: C:\Silk4J\Automation\iControlSilk4J\build.xml
build:
Build Successful
Note that the targets are all printed out in order they're executed, and the tasks are printed out as they are executed. However, if there's nothing to compile, or nothing to copy, then you won't see these tasks being executed. Does this look like your output? If so, it could be there's nothing to do.
bin
directory already exists, <mkdir/>
isn't going to execute.src
, or they have already been copied into bin
, the <copy/>
task won't execute.src
directory, or they have already been compiled, the <java/>
task won't run.If you look at the output from the -d
debug, you'll see Ant looking at a task, then explaining why a particular task wasn't executed. Plus, the debug option will explain how Ant decides what tasks to execute.
See if that helps.
$ python3
>>> from itertools import repeat
>>> list(repeat(0, 7))
[0, 0, 0, 0, 0, 0, 0]
How to Obtain the IP Address of the Local Machine on the Network seems to describe the solution quite well...
System.Reflection.Assembly.GetEntryAssembly().Location;
The reason your attempt wasn't working, is because the two animations (fade-in and fade-out) were working against each other.
Right before an object became visible, it was still invisible and so the animation for fading-out would run. Then, the fraction of a second later when that same object had become visible, the fade-in animation would try to run, but the fade-out was still running. So they would work against each other and you would see nothing.
Eventually the object would become visible (most of the time), but it would take a while. And if you would scroll down by using the arrow-button at the button of the scrollbar, the animation would sort of work, because you would scroll using bigger increments, creating less scroll-events.
Enough explanation, the solution (JS, CSS, HTML):
$(window).on("load",function() {_x000D_
$(window).scroll(function() {_x000D_
var windowBottom = $(this).scrollTop() + $(this).innerHeight();_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
_x000D_
/* If the element is completely within bounds of the window, fade it in */_x000D_
if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
if ($(this).css("opacity")==0) {$(this).fadeTo(500,1);}_x000D_
} else { //object goes out of view (scrolling up)_x000D_
if ($(this).css("opacity")==1) {$(this).fadeTo(500,0);}_x000D_
}_x000D_
});_x000D_
}).scroll(); //invoke scroll-handler on page-load_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
if ($(this).css("opacity")==0) {...}
. This makes sure the object is only faded in when the opacity
is 0
. Same goes for fading out. And this prevents the fade-in and fade-out from working against each other, because now there's ever only one of the two running at one time on an object..animate()
to .fadeTo()
. It's jQuery's specialized function for opacity, a lot shorter to write and probably lighter than animate..position()
to .offset()
. This always calculates relative to the body, whereas position is relative to the parent. For your case I believe offset is the way to go.$(window).height()
to $(window).innerHeight()
. The latter is more reliable in my experience.$(window).scroll();
. Now you can give all desired objects on the page the .fade
class, and objects that should be invisible at page-load, will be faded out immediately.#container
from both HTML and CSS, because (at least for this answer) it isn't necessary. (I thought maybe you needed the height:2000px
because you used .position()
instead of .offset()
, otherwise I don't know. Feel free of course to leave it in your code.)If you want opacity values other than 0
and 1
, use the following code:
$(window).on("load",function() {_x000D_
function fade(pageLoad) {_x000D_
var windowBottom = $(window).scrollTop() + $(window).innerHeight();_x000D_
var min = 0.3;_x000D_
var max = 0.7;_x000D_
var threshold = 0.01;_x000D_
_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
_x000D_
/* If the element is completely within bounds of the window, fade it in */_x000D_
if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
if ($(this).css("opacity")<=min+threshold || pageLoad) {$(this).fadeTo(500,max);}_x000D_
} else { //object goes out of view (scrolling up)_x000D_
if ($(this).css("opacity")>=max-threshold || pageLoad) {$(this).fadeTo(500,min);}_x000D_
}_x000D_
});_x000D_
} fade(true); //fade elements on page-load_x000D_
$(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
threshold
and for min/max
at the start of the function. In the rest of the function these variables are referenced. This way, if you ever want to change the values again, you only have to do it in one place.|| pageLoad
to the if-clause. This was necessary to make sure all objects are faded to the correct opacity on page-load. pageLoad
is a boolean that is send along as an argument when fade()
is invoked.function fade() {...}
, in order to be able to send along the pageLoad
boolean when the scroll-handler is invoked.Explanation:
The reason the code in your fiddle didn't work, is because the actual opacity values are always a little off from the value you set it to. So if you set the opacity to 0.3
, the actual value (in this case) is 0.300000011920929
. That's just one of those little bugs you have to learn along the way by trail and error. That's why this if-clause won't work: if ($(this).css("opacity") == 0.3) {...}
.
I added a threshold, to take that difference into account: == 0.3
becomes <= 0.31
.
(I've set the threshold to 0.01
, this can be changed of course, just as long as the actual opacity will fall between the set value and this threshold.)
The operators are now changed from ==
to <=
and >=
.
If you want to fade the elements based on their visible percentage, use the following code:
$(window).on("load",function() {_x000D_
function fade(pageLoad) {_x000D_
var windowTop=$(window).scrollTop(), windowBottom=windowTop+$(window).innerHeight();_x000D_
var min=0.3, max=0.7, threshold=0.01;_x000D_
_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectHeight=$(this).outerHeight(), objectTop=$(this).offset().top, objectBottom=$(this).offset().top+objectHeight;_x000D_
_x000D_
/* Fade element in/out based on its visible percentage */_x000D_
if (objectTop < windowTop) {_x000D_
if (objectBottom > windowTop) {$(this).fadeTo(0,min+((max-min)*((objectBottom-windowTop)/objectHeight)));}_x000D_
else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
} else if (objectBottom > windowBottom) {_x000D_
if (objectTop < windowBottom) {$(this).fadeTo(0,min+((max-min)*((windowBottom-objectTop)/objectHeight)));}_x000D_
else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
} else if ($(this).css("opacity")<=max-threshold || pageLoad) {$(this).fadeTo(0,max);}_x000D_
});_x000D_
} fade(true); //fade elements on page-load_x000D_
$(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
Found it with:
sudo tail /var/log/redis/redis-server.log -n 100
So if the setup was more standard that should be:
sudo tail /var/log/redis_6379.log -n 100
This outputs the last 100 lines of the file.
Where your log file is located is in your configs that you can access with:
redis-cli CONFIG GET *
The log file may not always be shown using the above. In that case use
tail -f `less /etc/redis/redis.conf | grep logfile|cut -d\ -f2`
Since some of the answers are outdated, I would like to provide my own -
To integrate ZXing library into your Android app as suggested by their Wiki, you need to add 2 Java files to your project:
Then in Android Studio add the following line to build.gradle file:
dependencies {
....
compile 'com.google.zxing:core:3.2.1'
}
Or if still using Eclipse with ADT-plugin add core.jar file to the libs subdirectory of your project (here fullscreen Windows and fullscreen Mac):
Finally add this code to your MainActivity.java:
public void scanQRCode(View v) {
IntentIntegrator integrator = new IntentIntegrator(MainActivity.this);
integrator.initiateScan(IntentIntegrator.QR_CODE_TYPES);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
IntentResult result =
IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
if (result != null) {
String contents = result.getContents();
if (contents != null) {
showDialog(R.string.result_succeeded, result.toString());
} else {
showDialog(R.string.result_failed,
getString(R.string.result_failed_why));
}
}
}
private void showDialog(int title, CharSequence message) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle(title);
builder.setMessage(message);
builder.setPositiveButton(R.string.ok_button, null);
builder.show();
}
The resulting app will ask to install and start Barcode Scanner app by ZXing (which will return to your app automatically after scanning):
Additionally, if you would like to build and run the ZXing Test app as inspiration for your own app:
Then you need 4 Java files from GitHub:
And 3 Jar files from Maven repository:
(You can build the Jar files yourself with mvn package
- if your check out ZXing from GitHub and install ant and maven tools at your computer).
Note: if your project does not recognize the Jar files, you might need to up the Java version in the Project Properties:
I know, this problem can be faced by so many people and many of them have uninstalled and re-installed the sql server for resolving this issue. In my observation the problem of not connecting the database service locally is just because of your network connection you are using, in most of the cases these problems will come when you are using wi-fi network.
Solution is, if you are using wi-fi then just right click on status of the network and get the ip details and enter the same ip in sql server name, it will work. Regards Vishwajeet
The CSS property that can be used is:
pointer-events:none
!IMPORTANT Keep in mind that this property is not supported by Opera Mini and IE 10 and below (inclusive). Another solution is needed for these browsers.
jQuery METHOD If you want to disable it via script and not CSS property, these can help you out: If you're using jQuery versions 1.4.3+:
$('selector').click(false);
If not:
$('selector').click(function(){return false;});
You can re-enable clicks with pointer-events: auto;
(Documentation)
Note that pointer-events
overrides the cursor
property, so if you want the cursor to be something other than the standard , your css should be place after pointer-events
.
Click On Run checkbox if not selected.
rkill command from pslist package sends given signal (or SIGTERM
by default) to specified process and all its descendants:
rkill [-SIG] pid/name...
According to this article, != performs faster
In Java, you can't, as foreach was meant to hide the iterator. You must do the normal For loop in order to get the current iteration.
I had similar issues when using 'java' at the beginning of the package name, e.g. java.jem.pc
Check your console output, I was receiving:
Exception in thread "main" java.lang.SecurityException: Prohibited package name: java.jem.pc
Take the case of two tables, Books
and Orders
. In case, we increase the number of books in a particular order with Order.ID = 1002
in Orders
table then we also need to reduce that the total number of books available in our stock by the same number in Books
table.
UPDATE Books, Orders
SET Orders.Quantity = Orders.Quantity + 2,
Books.InStock = Books.InStock - 2
WHERE
Books.BookID = Orders.BookID
AND Orders.OrderID = 1002;
"Closing" the current iFrame is not possible but you can tell the parent to manipulate the dom and make it invisible.
In IFrame:
parent.closeIFrame();
In parent:
function closeIFrame(){
$('#youriframeid').remove();
}
The best HTTP header for your client to send an access token (JWT or any other token) is the Authorization
header with the Bearer
authentication scheme.
This scheme is described by the RFC6750.
Example:
GET /resource HTTP/1.1
Host: server.example.com
Authorization: Bearer eyJhbGciOiJIUzI1NiIXVCJ9TJV...r7E20RMHrHDcEfxjoYZgeFONFh7HgQ
If you need stronger security protection, you may also consider the following IETF draft: https://tools.ietf.org/html/draft-ietf-oauth-pop-architecture. This draft seems to be a good alternative to the (abandoned?) https://tools.ietf.org/html/draft-ietf-oauth-v2-http-mac.
Note that even if this RFC and the above specifications are related to the OAuth2 Framework protocol, they can be used in any other contexts that require a token exchange between a client and a server.
Unlike the custom JWT
scheme you mention in your question, the Bearer
one is registered at the IANA.
Concerning the Basic
and Digest
authentication schemes, they are dedicated to authentication using a username and a secret (see RFC7616 and RFC7617) so not applicable in that context.
I would use something like this.
public class MyViewModel
{
public MyDataTable Data { get; set; }
public MyViewModel()
{
loadData(() => GetData());
}
private async void loadData(Func<DataTable> load)
{
try
{
MyDataTable = await Task.Run(load);
}
catch (Exception ex)
{
//log
}
}
private DataTable GetData()
{
DataTable data;
// get data and return
return data;
}
}
This is as close to I can get for constructors.
Find in /usr/lib/jvm/java-8-oracle/bin/jarsigner -verbose -sigalg SHA1withRSA
Python's eager in its evaluation, so eval(input(...))
(Python 3) will evaluate the user's input as soon as it hits the eval
, regardless of what you do with the data afterwards. Therefore, this is not safe, especially when you eval
user input.
Use ast.literal_eval
.
As an example, entering this at the prompt could be very bad for you:
__import__('os').system('rm -rf /a-path-you-really-care-about')
You can also get it with PInvoke on Kernel32.dll
The following code is coming more or less from SystemInfo.cs
from System.Web source located here:
[StructLayout(LayoutKind.Sequential, Pack = 1)]
public struct SYSTEM_INFO
{
public ushort wProcessorArchitecture;
public ushort wReserved;
public uint dwPageSize;
public IntPtr lpMinimumApplicationAddress;
public IntPtr lpMaximumApplicationAddress;
public IntPtr dwActiveProcessorMask;
public uint dwNumberOfProcessors;
public uint dwProcessorType;
public uint dwAllocationGranularity;
public ushort wProcessorLevel;
public ushort wProcessorRevision;
}
internal static class SystemInfo
{
static int _trueNumberOfProcessors;
internal static readonly IntPtr INVALID_HANDLE_VALUE = new IntPtr(-1);
[DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
internal static extern void GetSystemInfo(out SYSTEM_INFO si);
[DllImport("kernel32.dll")]
internal static extern int GetProcessAffinityMask(IntPtr handle, out IntPtr processAffinityMask, out IntPtr systemAffinityMask);
internal static int GetNumProcessCPUs()
{
if (SystemInfo._trueNumberOfProcessors == 0)
{
SYSTEM_INFO si;
GetSystemInfo(out si);
if ((int) si.dwNumberOfProcessors == 1)
{
SystemInfo._trueNumberOfProcessors = 1;
}
else
{
IntPtr processAffinityMask;
IntPtr systemAffinityMask;
if (GetProcessAffinityMask(INVALID_HANDLE_VALUE, out processAffinityMask, out systemAffinityMask) == 0)
{
SystemInfo._trueNumberOfProcessors = 1;
}
else
{
int num1 = 0;
if (IntPtr.Size == 4)
{
uint num2 = (uint) (int) processAffinityMask;
while ((int) num2 != 0)
{
if (((int) num2 & 1) == 1)
++num1;
num2 >>= 1;
}
}
else
{
ulong num2 = (ulong) (long) processAffinityMask;
while ((long) num2 != 0L)
{
if (((long) num2 & 1L) == 1L)
++num1;
num2 >>= 1;
}
}
SystemInfo._trueNumberOfProcessors = num1;
}
}
}
return SystemInfo._trueNumberOfProcessors;
}
}
You can try this:
SELECT DATE(DATE_ADD(m_inv_reqdate, INTERVAL + 1 DAY)) FROM tr08_investment
I used Rafid's suggestion of using AJAX.
This worked for me:
var url = "http://www.example.com/file.json";
var jsonFile = new XMLHttpRequest();
jsonFile.open("GET",url,true);
jsonFile.send();
jsonFile.onreadystatechange = function() {
if (jsonFile.readyState== 4 && jsonFile.status == 200) {
document.getElementById("id-of-element").innerHTML = jsonFile.responseText;
}
}
I basically(almost literally) copied this code from http://www.w3schools.com/ajax/tryit.asp?filename=tryajax_get2 so credit to them for everything.
I dont have much knowledge of how this works but you don't have to know how your brakes work to use them ;)
Hope this helps!
Have a look at either Left or Substring if you need to chop it up even more.
Google and the MySQL docs are a good place to start - you'll usually not get such a warm response if you've not even tried to help yourself before asking a question.
If you're using zsh and it has not been set up to read .bashrc, you need to add the Miniconda directory to the zsh shell PATH environment variable. Add this to your .zshrc
:
export PATH="/home/username/miniconda/bin:$PATH"
Make sure to replace /home/username/miniconda
with your actual path.
Save, exit the terminal and then reopen the terminal. conda
command should work.
I want to share an approach commented about and briefly discussed but show an actual example that I am currently using to help unit test EF-based services.
First, I would love to use the in-memory provider from EF Core, but this is about EF 6. Furthermore, for other storage systems like RavenDB, I'd also be a proponent of testing via the in-memory database provider. Again--this is specifically to help test EF-based code without a lot of ceremony.
Here are the goals I had when coming up with a pattern:
I agree with previous statements that EF is still an implementation detail and it's okay to feel like you need to abstract it in order to do a "pure" unit test. I also agree that ideally, I would want to ensure the EF code itself works--but this involves a sandbox database, in-memory provider, etc. My approach solves both problems--you can safely unit test EF-dependent code and create integration tests to test your EF code specifically.
The way I achieved this was through simply encapsulating EF code into dedicated Query and Command classes. The idea is simple: just wrap any EF code in a class and depend on an interface in the classes that would've originally used it. The main issue I needed to solve was to avoid adding numerous dependencies to classes and setting up a lot of code in my tests.
This is where a useful, simple library comes in: Mediatr. It allows for simple in-process messaging and it does it by decoupling "requests" from the handlers that implement the code. This has an added benefit of decoupling the "what" from the "how". For example, by encapsulating the EF code into small chunks it allows you to replace the implementations with another provider or totally different mechanism, because all you are doing is sending a request to perform an action.
Utilizing dependency injection (with or without a framework--your preference), we can easily mock the mediator and control the request/response mechanisms to enable unit testing EF code.
First, let's say we have a service that has business logic we need to test:
public class FeatureService {
private readonly IMediator _mediator;
public FeatureService(IMediator mediator) {
_mediator = mediator;
}
public async Task ComplexBusinessLogic() {
// retrieve relevant objects
var results = await _mediator.Send(new GetRelevantDbObjectsQuery());
// normally, this would have looked like...
// var results = _myDbContext.DbObjects.Where(x => foo).ToList();
// perform business logic
// ...
}
}
Do you start to see the benefit of this approach? Not only are you explicitly encapsulating all EF-related code into descriptive classes, you are allowing extensibility by removing the implementation concern of "how" this request is handled--this class doesn't care if the relevant objects come from EF, MongoDB, or a text file.
Now for the request and handler, via MediatR:
public class GetRelevantDbObjectsQuery : IRequest<DbObject[]> {
// no input needed for this particular request,
// but you would simply add plain properties here if needed
}
public class GetRelevantDbObjectsEFQueryHandler : IRequestHandler<GetRelevantDbObjectsQuery, DbObject[]> {
private readonly IDbContext _db;
public GetRelevantDbObjectsEFQueryHandler(IDbContext db) {
_db = db;
}
public DbObject[] Handle(GetRelevantDbObjectsQuery message) {
return _db.DbObjects.Where(foo => bar).ToList();
}
}
As you can see, the abstraction is simple and encapsulated. It's also absolutely testable because in an integration test, you could test this class individually--there are no business concerns mixed in here.
So what does a unit test of our feature service look like? It's way simple. In this case, I'm using Moq to do mocking (use whatever makes you happy):
[TestClass]
public class FeatureServiceTests {
// mock of Mediator to handle request/responses
private Mock<IMediator> _mediator;
// subject under test
private FeatureService _sut;
[TestInitialize]
public void Setup() {
// set up Mediator mock
_mediator = new Mock<IMediator>(MockBehavior.Strict);
// inject mock as dependency
_sut = new FeatureService(_mediator.Object);
}
[TestCleanup]
public void Teardown() {
// ensure we have called or expected all calls to Mediator
_mediator.VerifyAll();
}
[TestMethod]
public void ComplexBusinessLogic_Does_What_I_Expect() {
var dbObjects = new List<DbObject>() {
// set up any test objects
new DbObject() { }
};
// arrange
// setup Mediator to return our fake objects when it receives a message to perform our query
// in practice, I find it better to create an extension method that encapsulates this setup here
_mediator.Setup(x => x.Send(It.IsAny<GetRelevantDbObjectsQuery>(), default(CancellationToken)).ReturnsAsync(dbObjects.ToArray()).Callback(
(GetRelevantDbObjectsQuery message, CancellationToken token) => {
// using Moq Callback functionality, you can make assertions
// on expected request being passed in
Assert.IsNotNull(message);
});
// act
_sut.ComplexBusinessLogic();
// assertions
}
}
You can see all we need is a single setup and we don't even need to configure anything extra--it's a very simple unit test. Let's be clear: This is totally possible to do without something like Mediatr (you would simply implement an interface and mock it for tests, e.g. IGetRelevantDbObjectsQuery
), but in practice for a large codebase with many features and queries/commands, I love the encapsulation and innate DI support Mediatr offers.
If you're wondering how I organize these classes, it's pretty simple:
- MyProject
- Features
- MyFeature
- Queries
- Commands
- Services
- DependencyConfig.cs (Ninject feature modules)
Organizing by feature slices is beside the point, but this keeps all relevant/dependent code together and easily discoverable. Most importantly, I separate the Queries vs. Commands--following the Command/Query Separation principle.
This meets all my criteria: it's low-ceremony, it's easy to understand, and there are extra hidden benefits. For example, how do you handle saving changes? Now you can simplify your Db Context by using a role interface (IUnitOfWork.SaveChangesAsync()
) and mock calls to the single role interface or you could encapsulate committing/rolling back inside your RequestHandlers--however you prefer to do it is up to you, as long as it's maintainable. For example, I was tempted to create a single generic request/handler where you'd just pass an EF object and it would save/update/remove it--but you have to ask what your intention is and remember that if you wanted to swap out the handler with another storage provider/implementation, you should probably create explicit commands/queries that represent what you intend to do. More often than not, a single service or feature will need something specific--don't create generic stuff before you have a need for it.
There are of course caveats to this pattern--you can go too far with a simple pub/sub mechanism. I've limited my implementation to only abstracting EF-related code, but adventurous developers could start using MediatR to go overboard and message-ize everything--something good code review practices and peer reviews should catch. That's a process issue, not an issue with MediatR, so just be cognizant of how you're using this pattern.
You wanted a concrete example of how people are unit testing/mocking EF and this is an approach that's working successfully for us on our project--and the team is super happy with how easy it is to adopt. I hope this helps! As with all things in programming, there are multiple approaches and it all depends on what you want to achieve. I value simplicity, ease of use, maintainability, and discoverability--and this solution meets all those demands.
I would go for it.next()
for the simple reason that next()
is guaranteed to be implemented, while remove()
is an optional operation.
E next()
Returns the next element in the iteration.
void remove()
Removes from the underlying collection the last element returned by the iterator (optional operation).
In the given answers/examples the file is (most likely) uploaded with a HTML form or using the FormData API. The file is only a part of the data sent in the request, hence the multipart/form-data
Content-Type
header.
If you want to send the file as the only content then you can directly add it as the request body and you set the Content-Type
header to the MIME type of the file you are sending. The file name can be added in the Content-Disposition
header. You can upload like this:
var xmlHttpRequest = new XMLHttpRequest();
var file = ...file handle...
var fileName = ...file name...
var target = ...target...
var mimeType = ...mime type...
xmlHttpRequest.open('POST', target, true);
xmlHttpRequest.setRequestHeader('Content-Type', mimeType);
xmlHttpRequest.setRequestHeader('Content-Disposition', 'attachment; filename="' + fileName + '"');
xmlHttpRequest.send(file);
If you don't (want to) use forms and you are only interested in uploading one single file this is the easiest way to include your file in the request.
An alternative to other layouts, might be to put your panel with the GridLayout, inside another panel that is a FlowLayout. That way your spacing will be intact but will not expand across the entire available space.
You can try below code in Global.asax file.
protected void Application_BeginRequest()
{
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.UtcNow.AddHours(-1));
Response.Cache.SetNoStore();
}
SELECT {FN LENGTH('123-345-566')} - {FN LENGTH({FN REPLACE('123-345-566', '#', '')})} FROM DUAL
In Java version 8+ can (advised to) use java.time library. ISO 8601 sets standard way to write dates: YYYY-MM-DD
and java.time.Instant
uses it, so (for UTC
):
import java.time.Instant;
int myYear = Integer.parseInt(Instant.now().toString().substring(0,4));
P.S. just in case (and shorted for getting String
, not int
), using Calendar
looks better and can be made zone-aware.
Mutexes have ownership, unlike semaphores. Although any thread, within the scope of a mutex, can get an unlocked mutex and lock access to the same critical section of code,only the thread that locked a mutex should unlock it.
In PHP DateTime (PHP >= 5.3)
$dt = new DateTime();
$dt->setTimezone(new DateTimeZone('UTC'));
echo $dt->getTimestamp();
Check if a program exists from a Bash script covers this very well. In any shell script, you're best off running command -v $command_name
for testing if $command_name
can be run. In bash you can use hash $command_name
, which also hashes the result of any path lookup, or type -P $binary_name
if you only want to see binaries (not functions etc.)
Use below command to see all python installations :
which -a python
First, Set :
ALTER TABLE person ALTER COLUMN phone DROP NOT NULL;
I know this has been answered, but here's mine just because I think case is an under-appreciated tool. (Maybe because people think it is slow, but it's at least as fast as an if, sometimes faster.)
case "$1" in
0|1) xinput set-prop 12 "Device Enabled" $1 ;;
*) echo "This script requires a 1 or 0 as first parameter." ;;
esac
select CONVERT(NVARCHAR, SYSDATETIME(), 106) AS [DD-MON-YYYY]
or else
select REPLACE(CONVERT(NVARCHAR,GETDATE(), 106), ' ', '-')
both works fine
I posted some information on the Infragistics forums for designer widgets that may help you for this. You can view the post with the following link:
http://forums.infragistics.com/forums/p/52530/320151.aspx#320151
Note that the registry keys would be different for the different product and you may need to install on a 32 bit machine to see what keys you need.
For those using python 3+
import requests
import logging
import http.client
http.client.HTTPConnection.debuglevel = 1
logging.basicConfig()
logging.getLogger().setLevel(logging.DEBUG)
requests_log = logging.getLogger("requests.packages.urllib3")
requests_log.setLevel(logging.DEBUG)
requests_log.propagate = True
The command you want is Edit.Duplicate. It is mapped to CtrlE, CtrlV. This will not overwrite your clipboard.
Another option would be using flexbox.
While it's not supported by IE8 and IE9, you could consider:
Despite some additional browser-specific style prefixing would be necessary for full cross-browser support, you can see the basic usage either on this fiddle and on the following snippet:
html {_x000D_
height: 100%;_x000D_
}_x000D_
html body {_x000D_
height: 100%;_x000D_
overflow: hidden;_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
}_x000D_
html body .container-fluid.body-content {_x000D_
width: 100%;_x000D_
overflow-y: auto;_x000D_
}_x000D_
header {_x000D_
background-color: #4C4;_x000D_
min-height: 50px;_x000D_
width: 100%;_x000D_
}_x000D_
footer {_x000D_
background-color: #4C4;_x000D_
min-height: 30px;_x000D_
width: 100%;_x000D_
}
_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<header></header>_x000D_
<div class="container-fluid body-content">_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
</div>_x000D_
<footer></footer>
_x000D_
You want to do the check for undefined
first. If you do it the other way round, it will generate an error if the array is undefined.
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
This answer is getting a fair amount of attention, so I'd like to point out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null
values, other types of objects with a length
property, etc. It is also not very idiomatic JavaScript.
The foolproof approach
Taking some inspiration from the comments, below is what I currently consider to be the foolproof way to check whether an array is empty or does not exist. It also takes into account that the variable might not refer to an array, but to some other type of object with a length
property.
if (!Array.isArray(array) || !array.length) {
// array does not exist, is not an array, or is empty
// ? do not attempt to process array
}
To break it down:
Array.isArray()
, unsurprisingly, checks whether its argument is an array. This weeds out values like null
, undefined
and anything else that is not an array.
Note that this will also eliminate array-like objects, such as the arguments
object and DOM NodeList
objects. Depending on your situation, this might not be the behavior you're after.
The array.length
condition checks whether the variable's length
property evaluates to a truthy value. Because the previous condition already established that we are indeed dealing with an array, more strict comparisons like array.length != 0
or array.length !== 0
are not required here.
The pragmatic approach
In a lot of cases, the above might seem like overkill. Maybe you're using a higher order language like TypeScript that does most of the type-checking for you at compile-time, or you really don't care whether the object is actually an array, or just array-like.
In those cases, I tend to go for the following, more idiomatic JavaScript:
if (!array || !array.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or, more frequently, its inverse:
if (array && array.length) {
// array and array.length are truthy
// ? probably OK to process array
}
With the introduction of the optional chaining operator (Elvis operator) in ECMAScript 2020, this can be shortened even further:
if (!array?.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or the opposite:
if (array?.length) {
// array and array.length are truthy
// ? probably OK to process array
}
You could use a helper method to get rid of @SuppressWarnings("unchecked")
all over a class.
@SuppressWarnings("unchecked")
private static <T> Class<T> generify(Class<?> cls) {
return (Class<T>)cls;
}
Then you could write
Class<List<Foo>> cls = generify(List.class);
Other usage examples are
Class<Map<String, Integer>> cls;
cls = generify(Map.class);
cls = TheClass.<Map<String, Integer>>generify(Map.class);
funWithTypeParam(generify(Map.class));
public void funWithTypeParam(Class<Map<String, Integer>> cls) {
}
However, since it is rarely really useful, and the usage of the method defeats the compiler's type checking, I would not recommend to implement it in a place where it is publicly accessible.
An object and an instance are the same thing.
Personally I prefer to use the word "instance" when referring to a specific object of a specific type, for example "an instance of type Foo". But when talking about objects in general I would say "objects" rather than "instances".
A reference either refers to a specific object or else it can be a null reference.
They say that they have to create an instance to their application. What does it mean?
They probably mean you have to write something like this:
Foo foo = new Foo();
If you are unsure what type you should instantiate you should contact the developers of the application and ask for a more complete example.
Create a button with an id share and add the following code snippet.
share.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "Your body here";
String shareSub = "Your subject here";
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, shareSub);
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(sharingIntent, "Share using"));
}
});
The above code snippet will open the share chooser on share button click action. However, note...The share code snippet might not output very good results using emulator. For actual results, run the code snippet on android device to get the real results.
The easiest way is probably with VLOOKUP()
. This will require the 2nd worksheet to have the employee number column sorted though. In newer versions of Excel, apparently sorting is no longer required.
For example, if you had a "Sheet2" with two columns - A = the employee number, B = the employee's name, and your current worksheet had employee numbers in column D and you want to fill in column E, in cell E2, you would have:
=VLOOKUP($D2, Sheet2!$A$2:$B$65535, 2, FALSE)
Then simply fill this formula down the rest of column D.
Explanation:
$D2
specifies the value to search for.Sheet2!$A$2:$B$65535
specifies the range of cells to search in. Excel will search for the value in the first column of this range (in this case Sheet2!A2:A65535
). Note I am assuming you have a header cell in row 1.2
specifies a 1-based index of the column to return from within the searched range. The value of 2
will return the second column in the range Sheet2!$A$2:$B$65535
, namely the value of the B
column.FALSE
says to only return exact matches.The examples above don't correctly apply this
or pass arguments
correctly to the function override. Underscore _.wrap() wraps existing functions, applies this
and passes arguments
correctly. See: http://underscorejs.org/#wrap
I agree with @AndreM96 that the best approach is to display only a limited amount of rows, faster and better UX, this could be done with a pagination or with an infinite scroll.
Infinite scroll with Angular is really simple with limitTo filter. You just have to set the initial limit and when the user asks for more data (I am using a button for simplicity) you increment the limit.
<table>
<tr ng-repeat="d in data | limitTo:totalDisplayed"><td>{{d}}</td></tr>
</table>
<button class="btn" ng-click="loadMore()">Load more</button>
//the controller
$scope.totalDisplayed = 20;
$scope.loadMore = function () {
$scope.totalDisplayed += 20;
};
$scope.data = data;
Here is a JsBin.
This approach could be a problem for phones because usually they lag when scrolling a lot of data, so in this case I think a pagination fits better.
To do it you will need the limitTo filter and also a custom filter to define the starting point of the data being displayed.
Here is a JSBin with a pagination.
Here is example code what I did for an asynchronous method
@RequestMapping(value = "/import", method = RequestMethod.POST)
@ResponseStatus(value = HttpStatus.OK)
public void importDataFromFile(@RequestParam("file") MultipartFile file)
{
accountingSystemHandler.importData(file, assignChargeCodes);
}
You do not need to return any thing from your method all you need to use this annotation so that your method should return OK in every case
@ResponseStatus(value = HttpStatus.OK)
Supported by SQL Server 2005 and later versions
SELECT CONVERT(VARCHAR(10), GETDATE(), 101)
+ ' ' + CONVERT(VARCHAR(8), GETDATE(), 108)
* See Microsoft's documentation to understand what the 101
and 108
style codes above mean.
Supported by SQL Server 2012 and later versions
SELECT FORMAT(GETDATE() , 'MM/dd/yyyy HH:mm:ss')
Result
Both of the above methods will return:
10/16/2013 17:00:20
I was trying to use Feign, while I encounter same issue, As I understood HTTP message converter will help but wanted to understand how to achieve this.
@FeignClient(name = "mobilesearch", url = "${mobile.search.uri}" ,
fallbackFactory = MobileSearchFallbackFactory.class,
configuration = MobileSearchFeignConfig.class)
public interface MobileSearchClient {
@RequestMapping(method = RequestMethod.GET)
List<MobileSearchResponse> getPhones();
}
You have to use Customer Configuration for the decoder, MobileSearchFeignConfig,
public class MobileSearchFeignConfig {
@Bean
Logger.Level feignLoggerLevel() {
return Logger.Level.FULL;
}
@Bean
public Decoder feignDecoder() {
return new ResponseEntityDecoder(new SpringDecoder(feignHttpMessageConverter()));
}
public ObjectFactory<HttpMessageConverters> feignHttpMessageConverter() {
final HttpMessageConverters httpMessageConverters = new HttpMessageConverters(new MappingJackson2HttpMessageConverter());
return new ObjectFactory<HttpMessageConverters>() {
@Override
public HttpMessageConverters getObject() throws BeansException {
return httpMessageConverters;
}
};
}
public class MappingJackson2HttpMessageConverter extends org.springframework.http.converter.json.MappingJackson2HttpMessageConverter {
MappingJackson2HttpMessageConverter() {
List<MediaType> mediaTypes = new ArrayList<>();
mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8"));
setSupportedMediaTypes(mediaTypes);
}
}
}
In pthread_exit
, ret
is an input parameter. You are simply passing the address of a variable to the function.
In pthread_join
, ret
is an output parameter. You get back a value from the function. Such value can, for example, be set to NULL
.
Long explanation:
In pthread_join
, you get back the address passed to pthread_exit
by the finished thread. If you pass just a plain pointer, it is passed by value so you can't change where it is pointing to. To be able to change the value of the pointer passed to pthread_join, it must be passed as a pointer itself, that is, a pointer to a pointer.
The sign in such cases (i.e when one or both operands are negative) is implementation-defined. The spec says in §5.6/4 (C++03),
The binary / operator yields the quotient, and the binary % operator yields the remainder from the division of the first expression by the second. If the second operand of / or % is zero the behavior is undefined; otherwise (a/b)*b + a%b is equal to a. If both operands are nonnegative then the remainder is nonnegative; if not, the sign of the remainder is implementation-defined.
That is all the language has to say, as far as C++03 is concerned.
LOG_FACILITY="local7.notice"
LOG_TOPIC="my-prog-name"
LOG_TOPIC_OUT="$LOG_TOPIC-out[$$]"
LOG_TOPIC_ERR="$LOG_TOPIC-err[$$]"
exec 3>&1 > >(tee -a /dev/fd/3 | logger -p "$LOG_FACILITY" -t "$LOG_TOPIC_OUT" )
exec 2> >(logger -p "$LOG_FACILITY" -t "$LOG_TOPIC_ERR" )
It is related: Writing stdOut & stderr to syslog.
It almost work, but not from xinted ;(
Three flavors of my old SwissKnife library: relname_exists(anyThing)
, relname_normalized(anyThing)
and relnamechecked_to_array(anyThing)
. All checks from pg_catalog.pg_class table, and returns standard universal datatypes (boolean, text or text[]).
/**
* From my old SwissKnife Lib to your SwissKnife. License CC0.
* Check and normalize to array the free-parameter relation-name.
* Options: (name); (name,schema), ("schema.name"). Ignores schema2 in ("schema.name",schema2).
*/
CREATE FUNCTION relname_to_array(text,text default NULL) RETURNS text[] AS $f$
SELECT array[n.nspname::text, c.relname::text]
FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace,
regexp_split_to_array($1,'\.') t(x) -- not work with quoted names
WHERE CASE
WHEN COALESCE(x[2],'')>'' THEN n.nspname = x[1] AND c.relname = x[2]
WHEN $2 IS NULL THEN n.nspname = 'public' AND c.relname = $1
ELSE n.nspname = $2 AND c.relname = $1
END
$f$ language SQL IMMUTABLE;
CREATE FUNCTION relname_exists(text,text default NULL) RETURNS boolean AS $wrap$
SELECT EXISTS (SELECT relname_to_array($1,$2))
$wrap$ language SQL IMMUTABLE;
CREATE FUNCTION relname_normalized(text,text default NULL,boolean DEFAULT true) RETURNS text AS $wrap$
SELECT COALESCE(array_to_string(relname_to_array($1,$2), '.'), CASE WHEN $3 THEN '' ELSE NULL END)
$wrap$ language SQL IMMUTABLE;
For newbies like me, who end up on this question: This error also happens if you attempt to call .select2() on an element retrieved using pure javascript and not using jQuery.
This fails with the "select2 is not a function" error:
document.getElementById('e9').select2();
This works:
$("#e9").select2();
You can not specify the password from the command line but you can do either using ssh keys or using sshpass
as suggested by John C. or using a expect
script.
To use sshpass, you need to install it first. Then
sshpass -f <(printf '%s\n' your_password) ssh user@hostname
instead of using sshpass -p your_password
. As mentioned by Charles Duffy
in the comments, it is safer to supply the password from a file or from a variable instead of from command line.
BTW, a little explanation for the <(command)
syntax. The shell executes the command inside the parentheses and replaces the whole thing with a file descriptor, which is connected to the command's stdout. You can find more from this answer https://unix.stackexchange.com/questions/156084/why-does-process-substitution-result-in-a-file-called-dev-fd-63-which-is-a-pipe
It's still not possible.
Create directory "bin" in
D:\sqldeveloper\jdk\ Copy
msvcr100.dll from
D:\sqldeveloper\jdk\jre\bin to
D:\sqldeveloper\jdk\bin
Finally I've solved it using JacksonJaxbJsonProvider
It requires few changes in your Spring context.xml
and Maven pom.xml
In your Spring context.xml
add JacksonJaxbJsonProvider
to the <jaxrs:server>
:
<jaxrs:server id="restService" address="/resource">
<jaxrs:providers>
<bean class="org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider"/>
</jaxrs:providers>
</jaxrs:server>
In your Maven pom.xml add:
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-jaxrs</artifactId>
<version>1.9.0</version>
</dependency>
The problem seems to be that you have misunderstood how async/await work with Entity Framework.
So, let's look at this code:
public IQueryable<URL> GetAllUrls()
{
return context.Urls.AsQueryable();
}
and example of it usage:
repo.GetAllUrls().Where(u => <condition>).Take(10).ToList()
What happens there?
IQueryable
object (not accessing database yet) using repo.GetAllUrls()
IQueryable
object with specified condition using .Where(u => <condition>
IQueryable
object with specified paging limit using .Take(10)
.ToList()
. Our IQueryable
object is compiled to sql (like select top 10 * from Urls where <condition>
). And database can use indexes, sql server send you only 10 objects from your database (not all billion urls stored in database)Okay, let's look at first code:
public async Task<IQueryable<URL>> GetAllUrlsAsync()
{
var urls = await context.Urls.ToListAsync();
return urls.AsQueryable();
}
With the same example of usage we got:
await context.Urls.ToListAsync();
.Why async/await is preferred to use? Let's look at this code:
var stuff1 = repo.GetStuff1ForUser(userId);
var stuff2 = repo.GetStuff2ForUser(userId);
return View(new Model(stuff1, stuff2));
What happens here?
var stuff1 = ...
userId
var stuff2 = ...
userId
So let's look to an async version of it:
var stuff1Task = repo.GetStuff1ForUserAsync(userId);
var stuff2Task = repo.GetStuff2ForUserAsync(userId);
await Task.WhenAll(stuff1Task, stuff2Task);
return View(new Model(stuff1Task.Result, stuff2Task.Result));
What happens here?
So good code here:
using System.Data.Entity;
public IQueryable<URL> GetAllUrls()
{
return context.Urls.AsQueryable();
}
public async Task<List<URL>> GetAllUrlsByUser(int userId) {
return await GetAllUrls().Where(u => u.User.Id == userId).ToListAsync();
}
Note, than you must add using System.Data.Entity
in order to use method ToListAsync()
for IQueryable.
Note, that if you don't need filtering and paging and stuff, you don't need to work with IQueryable
. You can just use await context.Urls.ToListAsync()
and work with materialized List<Url>
.
You can get a list by looking into the document.cookie variable. Clearing them all is just a matter of looping over all of them and clearing them one by one.
Like all acronyms it's ambiguous, but I assume they mean object-relational mapper -- a way to cover your eyes and make believe there's no SQL underneath, but rather it's all objects;-). Not really true, of course, and not without problems -- the always colorful Jeff Atwood has described ORM as the Vietnam of CS;-). But, if you know little or no SQL, and have a pretty simple / small-scale problem, they can save you time!-)
You can use Axios (a promise-based HTTP client for Node.js) to download images in the order of your choosing in an asynchronous environment:
npm i axios
Then, you can use the following basic example to begin downloading images:
const fs = require('fs');
const axios = require('axios');
/* ============================================================
Function: Download Image
============================================================ */
const download_image = (url, image_path) =>
axios({
url,
responseType: 'stream',
}).then(
response =>
new Promise((resolve, reject) => {
response.data
.pipe(fs.createWriteStream(image_path))
.on('finish', () => resolve())
.on('error', e => reject(e));
}),
);
/* ============================================================
Download Images in Order
============================================================ */
(async () => {
let example_image_1 = await download_image('https://example.com/test-1.png', 'example-1.png');
console.log(example_image_1.status); // true
console.log(example_image_1.error); // ''
let example_image_2 = await download_image('https://example.com/does-not-exist.png', 'example-2.png');
console.log(example_image_2.status); // false
console.log(example_image_2.error); // 'Error: Request failed with status code 404'
let example_image_3 = await download_image('https://example.com/test-3.png', 'example-3.png');
console.log(example_image_3.status); // true
console.log(example_image_3.error); // ''
})();
Bootstrap naming conventions carry styles of their own, col-XS-1 refers to a column being 8.33% of the containing element wide. Your text, would most likely expand far beyond the specified width, and couldn't possible be centered within it. If you wanted it to constrain to the div, you could use something like css word-break.
For centering the content within an element large enough to expand beyond the text, you have two options.
Option 1: HTML Center Tag
<div class="row">
<div class="col-xs-1 center-block">
<center>
<span>aaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
</center>
</div>
</div>
Option 2: CSS Text-Align
<div class="row">
<div class="col-xs-1 center-block" style="text-align:center;">
<span>aaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
</div>
</div>
If you wanted everything to constrain to the width of the column
<div class="row">
<div class="col-xs-1 center-block" style="text-align:center;word-break:break-all;">
<span>aaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
</div>
</div>
UPDATE - Using Bootstrap's text-center class
<div class="row">
<div class="col-xs-1 center-block text-center">
<span>aaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
</div>
</div>
FlexBox Method
<div class="row">
<div class="flexBox" style="
display: flex;
flex-flow: row wrap;
justify-content: center;">
<span>aaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
</div>
</div>
In modern browsers you can do:
.reMode_hover:not(.reMode_selected):hover{}
Consult http://caniuse.com/css-sel3 for compatibility information.
Get PHP SDK from github and run the following code:
<?php
$attachment = array(
'message' => 'this is my message',
'name' => 'This is my demo Facebook application!',
'caption' => "Caption of the Post",
'link' => 'http://mylink.com',
'description' => 'this is a description',
'picture' => 'http://mysite.com/pic.gif',
'actions' => array(
array(
'name' => 'Get Search',
'link' => 'http://www.google.com'
)
)
);
$result = $facebook->api('/me/feed/', 'post', $attachment);
the above code will Post the message on to your wall... and if you want to post onto your friends or others wall then replace me
with the Facebook User Id of that user..for further information look out the API Documentation.
From my experience I've found that some commands which run in IPython do not run in base Python. For example, pwd
and ls
don't work alone in base Python. However they will work if prefaced with a %
such as: %pwd
and %ls
.
Also, in IPython, you can run the cd command like: cd C:\Users\
... This doesn't seem to work in base python, even when prefaced with a %
however.
[UPDATE]
As per March 7, 2017, Visual Studio 2017
was released for general availability.
You can refer to Mehdi Dehghani answer for the direct download links
or the old-fashioned ways using the website, vibs2006 answer
And you can also combine it with ray pixar answer to make it a complete full standalone offline installer.
Note:
I don't condone any illegal use of the offline installer.
Please stop piracy and follow the EULA.The community edition is free even for commercial use, under some condition.
You can see the EULA in this link below.
https://www.visualstudio.com/support/legal/mt171547
Thank you.
Instruction for official offline installer:
Open this link
Scroll Down (DO NOT FORGET!)
These menu should be available in that panel:
- Community 2015
- Enterprise 2015
- Professional 2015
- Enterprise 2015
- Visual Studio 2015 Update
- Visual Studio 2015 Language Pack
- Visual Studio Test Professional 2015 Language Pack
- Test Professional 2015
- Express 2015 for Desktop
- Express 2015 for Windows 10
The language drop-down menu should be like this:
- English for English
- Deutsch for German
- Español for Spanish
- Français for French
- Italiano for Italian
- ??????? for Russian
- ??? for Japanese
- ???? for Chinese (Simplified)
- ???? for Chinese (Traditional)
- ??? for Korean
Check on "ISO" in radio-button menu (on the left side of the Download button)
The radio-button menu should be like this:
- Web installer
- ISO
Click the Download button
/*
If your delimiters are slash-based, escape it:
\/*
*
means "0 or more of the previous repeatable pattern", which can be a single character, a character class or a group.
One more solution with resolving by name:
@Resource(name="country")
It uses javax.annotation package, so it's not Spring specific, but Spring supports it.
I have experienced that if kill -9 PID
doesn't work and you own the process, you can use kill -s kill PID
which is kind of surprising as the man page says you can kill -signal_number PID
.
If anyone experiences this problem with an express server, add the following middleware
app.use(function(req, res, next) {
res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
next();
});
Bootstrap 3 introduces responsive tables:
<div class="table-responsive">
<table class="table">
...
</table>
</div>
Bootstrap 4 is similar, but with more control via some new classes:
...responsive across all viewports ... with
.table-responsive
. Or, pick a maximum breakpoint with which to have a responsive table up to by using.table-responsive{-sm|-md|-lg|-xl}
.
Credit to Jason Bradley for providing an example:
In Android Studio version 3.4.1
if(Attachment != null)
{
code here ...
}
Well here is a solution for you but I don't really understand why it works:
<html><body>
<div style="width: 200px; border: 1px solid red;">Test</div>
<div style="width: 200px; border: 1px solid blue; overflow: hidden; height: 1.5em;">My hovercraft is full of eels. These pretzels are making me thirsty.</div>
<div style="width: 200px; border: 1px solid yellow; overflow: hidden; height: 1.5em;">
This_is_a_terrible_example_of_thinking_outside_the_box.
</div>
<table style="border: 2px solid black; border-collapse: collapse; width: 200px;"><tr>
<td style="width:200px; border: 1px solid green; overflow: hidden; height: 1.5em;"><div style="width: 200px; border: 1px solid yellow; overflow: hidden;">
This_is_a_terrible_example_of_thinking_outside_the_box.
</div></td>
</tr></table>
</body></html>
Namely, wrapping the cell contents in a div.
Try this
$('#thisElement .classToSelect').each(function(i){
// do stuff
});
Hope it will help
Use this to get an admin window with either bash or cmd running, from any directories context menue. Just right click on a directory name, and select the entry or hit the highlited button.
This is based on the chere tool and the unfortunately not working answer (for me) from link_boy. It works fine for me using Windows 8,
A side effect is the different color in the admin cmd window. To use this on bash, you can change the .bashrc file of the admin user.
I coudln't get the "background" version (right click into an open directory) to run. Feel free to add it.
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash]
@="&Bash Prompt Here"
"Icon"="C:\\cygwin\\Cygwin.ico"
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash\command]
@="C:\\cygwin\\bin\\bash -c \"/bin/xhere /bin/bash.exe '%L'\""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash_root]
@="&Root Bash Prompt Here"
"Icon"="C:\\cygwin\\Cygwin.ico"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_bash_root\command]
@="runas /savecred /user:administrator \"C:\\cygwin\\bin\\bash -c \\\"/bin/xhere /bin/bash.exe '%L'\\\"\""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd]
@="&Command Prompt Here"
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd\command]
@="cmd.exe /k cd %L"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd_root]
@="Roo&t Command Prompt Here"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\cygwin_cmd_root\command]
@="runas /savecred /user:administrator \"cmd.exe /t:1E /k cd %L\""
add this inside your input tag
<input type="text" (keyup.enter)="yourMethod()" />
well, the other answers seem to cover everything required, so I would like to just add this if you are using JMonkeyEngine:
Vector3f.angleBetween(otherVector)
as that is what I came here looking for :)
And using the joiner
from http://jinja.pocoo.org/docs/dev/templates/#joiner
{% set comma = joiner(",") %}
{% for user in userlist %}
{{ comma() }}<a href="/profile/{{ user }}/">{{ user }}</a>
{% endfor %}
It's made for this exact purpose. Normally a join or a check of forloop.last would suffice for a single list, but for multiple groups of things it's useful.
A more complex example on why you would use it.
{% set pipe = joiner("|") %}
{% if categories %} {{ pipe() }}
Categories: {{ categories|join(", ") }}
{% endif %}
{% if author %} {{ pipe() }}
Author: {{ author() }}
{% endif %}
{% if can_edit %} {{ pipe() }}
<a href="?action=edit">Edit</a>
{% endif %}
var module = angular.module("example", []);
module.controller("orderByController", function ($scope) {
$scope.orderByValue = function (value) {
return value;
};
$scope.items = ["c", "b", "a"];
$scope.objList = [
{
"name": "c"
}, {
"name": "b"
}, {
"name": "a"
}];
$scope.item = "b";
});
Don't forget also that the path for the file is on the actual oracle server machine and not any local development machine that might be calling your stored procedure. This is probably very obvious but something that should be remembered.
You can consider using a UI confirmation.
With yesnopopup.bat
@echo off
for /f "tokens=* delims=" %%# in ('yesnopopup.bat') do (
set "result=%%#"
)
if /i result==no (
echo user rejected the script
exit /b 1
)
echo continue
rem --- other commands --
the user will see the following and depending on the choice the script will continue:
with absolutely the same script you can use also iexpYNbutton.bat which will produce similar popup.
With buttons.bat you can try the following script:
@echo off
for /f "tokens=* delims=" %%# in ('buttons.bat "Yep!" "Nope!" ') do (
set "result=%%#"
)
if /i result==2 (
echo user rejected the script
exit /b 1
)
echo continue
rem --- other commands --
and the user will see:
When using jQuery
, it is advised to use $(this)
usually. But if you know (you should learn and know) the difference, sometimes it is more convenient and quicker to use just this
. For instance:
$(".myCheckboxes").change(function(){
if(this.checked)
alert("checked");
});
is easier and purer than
$(".myCheckboxes").change(function(){
if($(this).is(":checked"))
alert("checked");
});
Subtract from another date object
var d = new Date();
d.setHours(d.getHours() - 2);
@tux answer is great, just wanted to add that you can use go get to update a specific package:
go get -u full_package_name
Cellspacing is all around the cell and cannot be changed (i.e. if it's set to one, there will be 1 pixel of space on all sides). Padding can be specified discreetly (e.g. padding-top
, padding-bottom
, padding-left
, and padding-right;
or padding: [top] [right] [bottom] [left];
).
In the current version (v0.5.0-pre) the port seems to be available as a property on the server object, see http://nodejs.org/docs/v0.4.7/api/net.html#server.address
var server = http.createServer(function(req, res) {
...
}
server.listen(8088);
console.log(server.address());
console.log(server.address().address);
console.log(server.address().port);
outputs
{ address: '0.0.0.0', port: 8088 }
0.0.0.0
8088
The above voted answers are dangerous for the health of your database. You can still make your database available just for reading and not for writing:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read: if true;
allow write: if false;
}
}
}
Just a note, on Linux You can simply run sudo su - postgres
to become the postgres user and from there change what required using psql.
Another useful thing to do with numpy.histogram
is to plot the output as the x and y coordinates on a linegraph. For example:
arr = np.random.randint(1, 51, 500)
y, x = np.histogram(arr, bins=np.arange(51))
fig, ax = plt.subplots()
ax.plot(x[:-1], y)
fig.show()
This can be a useful way to visualize histograms where you would like a higher level of granularity without bars everywhere. Very useful in image histograms for identifying extreme pixel values.
It should be :
public async Task<ActionResult> GetSomeJsonData()
{
var model = // ... get data or build model etc.
return Json(new { Data = model }, JsonRequestBehavior.AllowGet);
}
or more simply:
return Json(model, JsonRequestBehavior.AllowGet);
I did notice that you are calling GetResources() from another ActionResult which wont work. If you are looking to get JSON back, you should be calling GetResources() from ajax directly...
How about this?
set search=%1
set replace=%2
set textfile=Input.txt
python -c "with open('%textfile%', 'rw') as f: f.write(f.read().replace('%search%', '%replace%'))"
Muhahaha
=(A1/86400)+25569
...and the format of the cell should be date.
#####
you probably don't have a real Unix time. Check your
timestamps in https://www.epochconverter.com/. Try to divide your input by 10, 100, 1000 or 10000**A1
with the cell containing the timestamp ;-pUnix system represent a point in time as a number. Specifically the number of seconds* since a zero-time called the Unix epoch which is 1/1/1970 00:00 UTC/GMT
. This number of seconds is called "Unix timestamp" or "Unix time" or "POSIX time" or just "timestamp" and sometimes (confusingly) "Unix epoch".
In the case of Excel they chose a different zero-time and step (because who wouldn't like variety in technical details?). So Excel counts days
since 24 hours before 1/1/0000 UTC/GMT
. So 25569 corresponds to 1/1/1970 00:00 UTC/GMT
and 25570 to 2/1/1970 00:00
.
Now please note that we have 86400 seconds per day (24 hours x60 minutes each x60 seconds) and you can understand what this formula does: A1/86400
converts seconds to days and +25569
adjusts for the offset between what is time-zero for Unix and what is time-zero for Excel.
By the way DATE(1970,1,1)
will helpfully return 25569 for you in case you forget all this so a more "self-documenting" way to write our formula is:
=A1/(24*60*60) + DATE(1970,1,1)
P.S.: All these were already present in other answers and comments just not laid out as I like them and I don't feel it's OK to edit the hell out of another answer.
*: that's almost correct because you should not count leap seconds
**: E.g. in the case of this question the number was number of milliseconds since the the Unix epoch.
This error is exactly what it means: Something bad happened, that would not normally happen.
In my most recent case, the REAL error was:
Msg 9002, Level 17, State 2, Procedure MyProcedure, Line 2 [Batch Start Line 3]
The transaction log for database 'MyDb' is full due to 'LOG_BACKUP'.
Here is my checklist of things to try, perhaps in this exact order:
You can use the both first answers and is going to be a better result.
In the attribute inspector (when you're selecting the button), change the State Config to Disabled to set the new Image that is going to appear when it is disabled (remove the marker in the Content->Enabled check to made it disabled).
And when you change the state to enabled, the image will load the one from this state.
Adding the alpha logic to this is a good detail.
That's the vi editor. Try ESC
:q!
.
You say it works once you install the VB6 IDE so the problem is likely to be that the components you are trying to use depend on the VB6 runtime being installed.
The VB6 runtime isn't installed on Windows by default.
Installing the IDE is one way to get the runtime. For non-developer machines, a "redistributable" installer package from Microsoft should be used instead.
Here is one VB6 runtime installer from Microsoft. I'm not sure if it will be the right version for your components:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=7b9ba261-7a9c-43e7-9117-f673077ffb3c
Add this line right after the query you want to print.
Example:
$query = $this->db->query('SELECT * FROM table WHERE condition');
//Add this line.
var_dump($this->db->last_query());
exit();
or
echo $this->db->last_query();
It appears the default setting for Adobe Reader X is for the toolbars not to be shown by default unless they are explicitly turned on by the user. And even when I turn them back on during a session, they don't show up automatically next time. As such, I suspect you have a preference set contrary to the default.
The state you desire, with the top and left toolbars not shown, is called "Read Mode". If you right-click on the document itself, and then click "Page Display Preferences" in the context menu that is shown, you'll be presented with the Adobe Reader Preferences dialog. (This is the same dialog you can access by opening the Adobe Reader application, and selecting "Preferences" from the "Edit" menu.) In the list shown in the left-hand column of the Preferences dialog, select "Internet". Finally, on the right, ensure that you have the "Display in Read Mode by default" box checked:
You can also turn off the toolbars temporarily by clicking the button at the right of the top toolbar that depicts arrows pointing to opposing corners:
Finally, if you have "Display in Read Mode by default" turned off, but want to instruct the page you're loading not to display the toolbars (i.e., override the user's current preferences), you can append the following to the URL:
#toolbar=0&navpanes=0
So, for example, the following code will disable both the top toolbar (called "toolbar") and the left-hand toolbar (called "navpane"). However, if the user knows the keyboard combination (F8, and perhaps other methods as well), they will still be able to turn them back on.
string url = @"http://www.domain.com/file.pdf#toolbar=0&navpanes=0";
this._WebBrowser.Navigate(url);
You can read more about the parameters that are available for customizing the way PDF files open here on Adobe's developer website.
If your sed(1)
has a -i
option, then use it like this:
for i in *; do
sed -i 's/foo/bar/' $i
done
If not, there are several ways variations on the following depending on which language you want to play with:
ruby -i.bak -pe 'sub(%r{foo}, 'bar')' *
perl -pi.bak -e 's/foo/bar/' *
The correct path shouldn't end with "/", I had it wrong that caused the trouble
Right way:
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
This works for me
var link_click = $('#google').get(0).attributes.onclick.nodeValue;
console.log(link_click);
I use this SQL code to get all the information about a column.
SELECT
COL.COLUMN_NAME,
ORDINAL_POSITION,
DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH,
NUMERIC_PRECISION,
NUMERIC_PRECISION_RADIX,
NUMERIC_SCALE,
DATETIME_PRECISION,
IS_NULLABLE,
CONSTRAINT_TYPE,
COLUMNPROPERTY(object_id(COL.TABLE_NAME), COL.COLUMN_NAME, 'IsIdentity') IS_IDENTITY,
COLUMNPROPERTY(object_id(COL.TABLE_NAME), COL.COLUMN_NAME, 'IsComputed') IS_COMPUTED
FROM INFORMATION_SCHEMA.COLUMNS COL
LEFT OUTER JOIN
(
SELECT COLUMN_NAME, CONSTRAINT_TYPE
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE A
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS B
ON A.CONSTRAINT_NAME = B.CONSTRAINT_NAME
WHERE A.TABLE_NAME = 'User'
) CONS
ON COL.COLUMN_NAME = CONS.COLUMN_NAME
WHERE COL.TABLE_NAME = 'User'
Using ES6 the javascript becomes a little cleaner
handleFiles(input) {
const file = input.target.files[0];
const reader = new FileReader();
reader.onload = (event) => {
const file = event.target.result;
const allLines = file.split(/\r\n|\n/);
// Reading line by line
allLines.forEach((line) => {
console.log(line);
});
};
reader.onerror = (event) => {
alert(event.target.error.name);
};
reader.readAsText(file);
}
The simplest and most elegant way is as follows:
all(x==myList[0] for x in myList)
(Yes, this even works with the empty list! This is because this is one of the few cases where python has lazy semantics.)
Regarding performance, this will fail at the earliest possible time, so it is asymptotically optimal.
I made two examples from what I think your question might be:
Check this out for storing additional values. It uses data attributes to store the other value:
Be aware that caching headers are different when you use "direct" vs. "latest" link from google.
When using http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js
Cache-Control: public, max-age=31536000
When using http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js
Cache-Control: public, max-age=3600, must-revalidate, proxy-revalidate
Just tagging onto Balthazar's answer. Running
pip install BeautifulSoup4
did not work for me. Instead use
pip install beautifulsoup4
scanf
needs to know the size of the data being pointed at by &d
to fill it properly, whereas variadic functions promote floats to doubles (not entirely sure why), so printf
is always getting a double
.
You can change the buffer size of cmd by clicking the icon at top left corner -->properties --> layout --> screen buffer size.
you can even change it with cmd command
mode con:cols=100 lines=60
Upto lines = 58 the height of the cmd window changes ..
After lines value of 58 the buffer size of the cmd changes...
You can query the all_tab_columns
view in the database.
SELECT table_name, column_name, data_type, data_length FROM all_tab_columns where table_name = 'CUSTOMER'
You cannot add a column with a default value in Hive. You have the right syntax for adding the column ALTER TABLE test1 ADD COLUMNS (access_count1 int);
, you just need to get rid of default sum(max_count)
. No changes to that files backing your table will happen as a result of adding the column. Hive handles the "missing" data by interpreting NULL
as the value for every cell in that column.
So now your have the problem of needing to populate the column. Unfortunately in Hive you essentially need to rewrite the whole table, this time with the column populated. It may be easier to rerun your original query with the new column. Or you could add the column to the table you have now, then select all of its columns plus value for the new column.
You also have the option to always COALESCE
the column to your desired default and leave it NULL
for now. This option fails when you want NULL
to have a meaning distinct from your desired default. It also requires you to depend on always remembering to COALESCE
.
If you are very confident in your abilities to deal with the files backing Hive, you could also directly alter them to add your default. In general I would recommend against this because most of the time it will be slower and more dangerous. There might be some case where it makes sense though, so I've included this option for completeness.
If you are using JDK 8, there is no reason to use abstract classes because whatever we do with abstract classes we can now do it with interfaces because of default methods. If you use abstract class you have to extend it and there is a restriction that you can extends only once. But if you use interface you can implements as many as you want.
Interface is by default an abstract class an all methods and constructors are public.
mysqldump
utility can help you, basically with --tab
option it's a wrapped for SELECT INTO OUTFILE
statement.
Example:
mysqldump -u root -p --tab=/tmp world Country --fields-enclosed-by='"' --fields-terminated-by="," --lines-terminated-by="\n" --no-create-info
This will create csv formatted file /tmp/Country.txt
I tried JSON. It worked. But I hate having to create the struct of the exact fields and types I might be setting. To me that was a pain. I noticed it was the method used by all the configuration options I could find. Maybe my background in dynamic languages makes me blind to the benefits of such verboseness. I made a new simple config file format, and a more dynamic-ish lib for reading it out.
https://github.com/chrisftw/ezconf
I am pretty new to the Go world, so it might not be the Go way. But it works, it is pretty quick, and super simple to use.
In case of lubuntu 14.04 use
sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 lib32stdc++6
P.S-no need to restart the system.
The exit code of the last command ran.
var nvc = new List<KeyValuePair<string, string>>();
nvc.Add(new KeyValuePair<string, string>("Input1", "TEST2"));
nvc.Add(new KeyValuePair<string, string>("Input2", "TEST2"));
var client = new HttpClient();
var req = new HttpRequestMessage(HttpMethod.Post, url) { Content = new FormUrlEncodedContent(nvc) };
var res = await client.SendAsync(req);
Or
var dict = new Dictionary<string, string>();
dict.Add("Input1", "TEST2");
dict.Add("Input2", "TEST2");
var client = new HttpClient();
var req = new HttpRequestMessage(HttpMethod.Post, url) { Content = new FormUrlEncodedContent(dict) };
var res = await client.SendAsync(req);
I have edited the code from one of the example here to use jquery. It's still not 100% jquery though. Any thoughts on the two different versions, like what are the pros and cons of each?
function column_sort() {
getCellValue = (tr, idx) => $(tr).find('td').eq( idx ).text();
comparer = (idx, asc) => (a, b) => ((v1, v2) =>
v1 !== '' && v2 !== '' && !isNaN(v1) && !isNaN(v2) ? v1 - v2 : v1.toString().localeCompare(v2)
)(getCellValue(asc ? a : b, idx), getCellValue(asc ? b : a, idx));
table = $(this).closest('table')[0];
tbody = $(table).find('tbody')[0];
elm = $(this)[0];
children = elm.parentNode.children;
Array.from(tbody.querySelectorAll('tr')).sort( comparer(
Array.from(children).indexOf(elm), table.asc = !table.asc))
.forEach(tr => tbody.appendChild(tr) );
}
table.find('thead th').on('click', column_sort);
Get the content of the JSON file using file_get_contents()
:
$str = file_get_contents('http://example.com/example.json/');
Now decode the JSON using json_decode()
:
$json = json_decode($str, true); // decode the JSON into an associative array
You have an associative array containing all the information. To figure out how to access the values you need, you can do the following:
echo '<pre>' . print_r($json, true) . '</pre>';
This will print out the contents of the array in a nice readable format. Note that the second parameter is set to true
in order to let print_r()
know that the output should be returned (rather than just printed to screen). Then, you access the elements you want, like so:
$temperatureMin = $json['daily']['data'][0]['temperatureMin'];
$temperatureMax = $json['daily']['data'][0]['temperatureMax'];
Or loop through the array however you wish:
foreach ($json['daily']['data'] as $field => $value) {
// Use $field and $value here
}
in Jquery "data" doesn't refresh by default :
alert($('#outer').html());
var a = $('#mydiv').data('myval'); //getter
$('#mydiv').data("myval","20"); //setter
alert($('#outer').html());
You'd use "attr" instead for live update:
alert($('#outer').html());
var a = $('#mydiv').data('myval'); //getter
$('#mydiv').attr("data-myval","20"); //setter
alert($('#outer').html());
Correct on all fronts. Outside of a character class (that's what the "square brackets" are called) the hyphen has no special meaning, and within a character class, you can place a hyphen as the first or last character in the range (e.g. [-a-z]
or [0-9-]
), OR escape it (e.g. [a-z\-0-9]
) in order to add "hyphen" to your class.
It's more common to find a hyphen placed first or last within a character class, but by no means will you be lynched by hordes of furious neckbeards for choosing to escape it instead.
(Actually... my experience has been that a lot of regex is employed by folks who don't fully grok the syntax. In these cases, you'll typically see everything escaped (e.g. [a-z\%\$\#\@\!\-\_]
) simply because the engineer doesn't know what's "special" and what's not... so they "play it safe" and obfuscate the expression with loads of excessive backslashes. You'll be doing yourself, your contemporaries, and your posterity a huge favor by taking the time to really understand regex syntax before using it.)
Great question!
I was brought here by a different problem. Whenever I tried to login, i got that message because instead of authenticating correctly I logged in as anonymous user. The solution to my problem was:
To see which user you are, and whose permissions you have:
select user(), current_user();
To delete the pesky anonymous user:
drop user ''@'localhost';
Ranges from -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807.
It will start from -9,223,372,036,854,775,808
Long.MIN_VALUE.
If array of Books is null, return zero as it looks that method count total price of all Books provided - if no Book is provided, zero is correct value:
public static double calculateInventoryTotal(Book[] books)
{
if(books == null) return 0;
double total = 0;
for (int i = 0; i < books.length; i++)
{
total += books[i].getPrice();
}
return total;
}
It's upon to you to decide if it's correct that you can input null input value (shoul not be correct, but...).
I would like to compliment Ram Narasimhans answer with some tips I found on an Excel blog
Non-uniformly distributed data can be plotted in excel in
Just like Ram Narasimhan suggested, to have the points centered you will want the mid point but you don't need to move to a numeric format, you can stay in the time format.
1- Add the center point to your data series
+---------------+-------+------+
| Time | Time | Freq |
+---------------+-------+------+
| 08:00 - 09:00 | 08:30 | 12 |
| 09:00 - 10:00 | 09:30 | 13 |
| 10:00 - 11:00 | 10:30 | 10 |
| 13:00 - 14:00 | 13:30 | 5 |
| 14:00 - 15:00 | 14:30 | 14 |
+---------------+-------+------+
2- Create a Scatter Plot
3- Excel allows you to specify time values for the axis options. Time values are a parts per 1 of a 24-hour day. Therefore if we want to 08:00 to 15:00, then we Set the Axis options to:
Alternative Display:
To be able to represent these points as bars instead of just point we need to draw disjoint lines. Here is a way to go about getting this type of chart.
1- You're going to need to add several rows where we draw the line and disjoint the data
+-------+------+
| Time | Freq |
+-------+------+
| 08:30 | 0 |
| 08:30 | 12 |
| | |
| 09:30 | 0 |
| 09:30 | 13 |
| | |
| 10:30 | 0 |
| 10:30 | 10 |
| | |
| 13:30 | 0 |
| 13:30 | 5 |
| | |
| 14:30 | 0 |
| 14:30 | 14 |
+-------+------+
2- Plot an X Y (Scatter) Chart with Lines.
3- Now you can tweak the data series to have a fatter line, no markers, etc.. to get a bar/column type chart with non-uniformly distributed data.
Set an alarm event. Typically alarm events are better form of notifying failure while cleaning up objects
This should help if you need a publicly exposed website but you're on a dev pc. Also to answer (I can't comment yet): "How do I post to an internal only running development server with this? – stryba "
NGROK creates a secure public URL to a local webserver on your development machine (Permanent URLs available for a fee, temporary for free).
1) Run ngrok.exe to open command line (on desktop)
2) Type ngrok.exe http 80 to start a tunnel,
3) test by browsing to the displayed web address which will forward and display the local default 80 page on your dev pc
Then use some of the tools recommended above to POST to your ngrok site ('https://xxxxxx.ngrok.io') to test your local code.
idTABLE.parentElement.innerHTML = '<span>123 element</span> 456';
while this works, it's still recommended to use getElementById
: Do DOM tree elements with ids become global variables?
replaceChild
would work fine if you want to go to the trouble of building up your replacement, element by element, using document.createElement
and appendChild
, but I don't see the point.
Update: As Roko C.Bulijan pointed out.. you need to use .insertAfter to insert it after the selected div. Also see updated code if you want it appended to the end instead of beginning when cloned multiple times. DEMO
Code:
var cloneCount = 1;;
$("button").click(function(){
$('#id')
.clone()
.attr('id', 'id'+ cloneCount++)
.insertAfter('[id^=id]:last')
// ^-- Use '#id' if you want to insert the cloned
// element in the beginning
.text('Cloned ' + (cloneCount-1)); //<--For DEMO
});
Try,
$("#id").clone().attr('id', 'id1').after("#id");
If you want a automatic counter, then see below,
var cloneCount = 1;
$("button").click(function(){
$("#id").clone().attr('id', 'id'+ cloneCount++).insertAfter("#id");
});
This is the way I handled this.
Let's say you have a <select> for Month and a <select> for Day.
The number of days depends on the selected month.
Both lists are owned by a third object, the left panel. Both <select> are also children of the leftPanel <div>
It's a game with the callbacks and the handlers in the LeftPanel component.
To test it, just copy the code into two separated files and run the index.html. Then select a month and see how the number of days changes.
dates.js
/** @jsx React.DOM */
var monthsLength = [0,31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
var MONTHS_ARR = ["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];
var DayNumber = React.createClass({
render: function() {
return (
<option value={this.props.dayNum}>{this.props.dayNum}</option>
);
}
});
var DaysList = React.createClass({
getInitialState: function() {
return {numOfDays: 30};
},
handleMonthUpdate: function(newMonthix) {
this.state.numOfDays = monthsLength[newMonthix];
console.log("Setting days to " + monthsLength[newMonthix] + " month = " + newMonthix);
this.forceUpdate();
},
handleDaySelection: function(evt) {
this.props.dateHandler(evt.target.value);
},
componentDidMount: function() {
this.props.readyCallback(this.handleMonthUpdate)
},
render: function() {
var dayNodes = [];
for (i = 1; i <= this.state.numOfDays; i++) {
dayNodes = dayNodes.concat([<DayNumber dayNum={i} />]);
}
return (
<select id={this.props.id} onChange = {this.handleDaySelection}>
<option value="" disabled defaultValue>Day</option>
{dayNodes}
</select>
);
}
});
var Month = React.createClass({
render: function() {
return (
<option value={this.props.monthIx}>{this.props.month}</option>
);
}
});
var MonthsList = React.createClass({
handleUpdate: function(evt) {
console.log("Local handler:" + this.props.id + " VAL= " + evt.target.value);
this.props.dateHandler(evt.target.value);
return false;
},
render: function() {
var monthIx = 0;
var monthNodes = this.props.data.map(function (month) {
monthIx++;
return (
<Month month={month} monthIx={monthIx} />
);
});
return (
<select id = {this.props.id} onChange = {this.handleUpdate}>
<option value="" disabled defaultValue>Month</option>
{monthNodes}
</select>
);
}
});
var LeftPanel = React.createClass({
dayRefresh: function(newMonth) {
// Nothing - will be replaced
},
daysReady: function(refreshCallback) {
console.log("Regisering days list");
this.dayRefresh = refreshCallback;
},
handleMonthChange: function(monthIx) {
console.log("New month");
this.dayRefresh(monthIx);
},
handleDayChange: function(dayIx) {
console.log("New DAY: " + dayIx);
},
render: function() {
return(
<div id="orderDetails">
<DaysList id="dayPicker" dateHandler={this.handleDayChange} readyCallback = {this.daysReady} />
<MonthsList data={MONTHS_ARR} id="monthPicker" dateHandler={this.handleMonthChange} />
</div>
);
}
});
React.renderComponent(
<LeftPanel />,
document.getElementById('leftPanel')
);
And the HTML for running the left panel component index.html
<!DOCTYPE html>
<html>
<head>
<title>Dates</title>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.6.0/underscore-min.js"></script>
<script src="//fb.me/react-0.11.1.js"></script>
<script src="//fb.me/JSXTransformer-0.11.1.js"></script>
</head>
<style>
#dayPicker {
position: relative;
top: 97px;
left: 20px;
width: 60px;
height: 17px;
}
#monthPicker {
position: relative;
top: 97px;
left: 22px;
width: 95px;
height: 17px;
}
select {
font-size: 11px;
}
</style>
<body>
<div id="leftPanel">
</div>
<script type="text/jsx" src="dates.js"></script>
</body>
</html>
All you need is to give the AnchorPane
an ID, and then you can get the Stage
from that.
@FXML private AnchorPane ap;
Stage stage = (Stage) ap.getScene().getWindow();
From here, you can add in the Listener
that you need.
Edit: As stated by EarthMind below, it doesn't have to be the AnchorPane
element; it can be any element that you've defined.
// replace
return <p>hello</p>;
// with
return <p>{JSON.stringify(movies)}</p>;
Now you should see, that your code actually does work. What does not work is the console.log(movies)
. This is because movies
points to the old state. If you move your console.log(movies)
outside of useEffect
, right above the return, you will see the updated movies object.
Here is the way to add/append a row in pandas DataFrame
def add_row(df, row):
df.loc[-1] = row
df.index = df.index + 1
return df.sort_index()
add_row(df, [1,2,3])
It can be used to insert/append a row in empty or populated pandas DataFrame
I believe this works:
def cartesian_product(L):
if L:
return {(a,) + b for a in L[0]
for b in cartesian_product(L[1:])}
else:
return {()}
It worked for me after I
changed the $cfg['LoginCookieValidity']
in
(phpmyadmin folder)/libraries/config.default.php
to 999999999
.
checked the php.ini
used by the phpmyadmin by php5 -i | grep php.ini
.
went to the php.ini
file whose path I got from the grep command output and changed the session.gc_maxlifetime
value to 999999999
.
restarted the server. In my case it was sudo service apache2 restart
.
Done. Logged in phpmyadmin and checked the cookie validity in Settings -> Features -> General -> Login cookie validity. It was 999999999
. Also there was no warning "Your PHP parameter session.gc_maxlifetime is lower that cookie validity ...". The warning showed after I logged in phpmyadmin before I changed the php.ini
file.
Check the version of php used by the phpmyadmin. You should change the ini file of the php that is used by the phpmyadmin. I have php5 and php(i.e 7) both installed. But my phpmyadmin uses php5. So I had to search for ini file of php5.
I had the same issue for a specific controller only - which was really weird. I had a folder in the root of the CI folder that had the same name as the controller I was trying to access... Because of that, CI was directing the request to this directory instead of the controller itself.
After removing this folder (which was there a bit by mistake), it all worked fine.
To be more clear, here is what it looked like:
/ci/controller/register.php
/ci/register/
I had to remove /ci/register/
.
I've tried different numbers, and it always acts as if the 0s aren't there and sorts the numbers correctly otherwise. Anyone know why?
You're getting a lexicographical sort (e.g. convert objects to strings, and sort them in dictionary order), which is the default sort behavior in Javascript:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/sort
array.sort([compareFunction])
Parameters
compareFunction
Specifies a function that defines the sort order. If omitted, the array is sorted lexicographically (in dictionary order) according to the string conversion of each element.
In the ECMAscript specification (the normative reference for the generic Javascript), ECMA-262, 3rd ed., section 15.4.4.11, the default sort order is lexicographical, although they don't come out and say it, instead giving the steps for a conceptual sort function that calls the given compare function if necessary, otherwise comparing the arguments when converted to strings:
13. If the argument comparefn is undefined, go to step 16.
14. Call comparefn with arguments x and y.
15. Return Result(14).
16. Call ToString(x).
17. Call ToString(y).
18. If Result(16) < Result(17), return -1.
19. If Result(16) > Result(17), return 1.
20. Return +0.
string[][] languages = new string[2][];
languages[0] = new string[2];
languages[1] = new string[3];
// inserting data into double dimensional arrays.
for (int i = 0; i < 2; i++)
{
languages[0][i] = "Jagged"+i.ToString();
}
for (int j = 0; j < 3; j++)
{
languages[1][j] = "Jag"+j.ToString();
}
// doing foreach through 2 dimensional arrays.
foreach (string[] s in languages)
{
foreach (string a in s)
{
Console.WriteLine(a);
}
}
Microsoft provides a walkthrough for creating a Windows Explorer style interface in C#.
There are also several examples on Code Project and other sites. Immediate examples are Explorer Tree, My Explorer, File Browser and Advanced File Explorer but there are others. Explorer Tree seems to look the best from the brief glance I took.
I used the search term windows explorer tree view C#
in Google to find these links.
use encodeURIComponent function to fix url, it works on Browser and node.js
res.redirect("/signin?email="+encodeURIComponent("[email protected]"));
> encodeURIComponent("http://a.com/a+b/c")
'http%3A%2F%2Fa.com%2Fa%2Bb%2Fc'
Arguably, it is an example of syntactic sugar, since it is implemented as an array anyways (which doesn't mean it's useless) - I prefer passing an array to keep it clear, and also declare methods with arrays of given type. Rather an opinion than an answer, though.
I have been hunting around trying to solve this one for a while and none of the suggested updates to bash seemed to be working. What I discovered was that some point my npm root was modified such that it was pointing to a Users/USER_NAME/.node/node_modules
while the actual installation of npm was living at /usr/local/lib/node_modules
. You can check this by running npm root
and npm root -g
(for the global installation). To correct the path you can call npm config set prefix /usr/local
.
This might be a very late reply but I hope it helps someone.
Note(If you are using point 2) : While setting alpha to the background, it will blur the whole layout. To avoid this, create a new xml containing drawable and set alpha here to 0.5 (or value of your wish) and use this drawable name (name of file) as the background.
For example, use it as below (say file name is bgndblur.xml):
<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:shape="rectangle"
android:src="@drawable/registerscreenbackground"
android:alpha="0.5">
Use the below in your layout :
<....
android:background="@drawable/bgndblur">
Hope this helped.
Probably you should use something like this
npm ci
Instead of using npm install
if you don't want to change the version of your package.
According to the official documentation, both npm install
and npm ci
install the dependencies which are needed for the project.
The main difference is,
npm install
does install the packages takingpackge.json
as a reference. Where in the case ofnpm ci
, it does install the packages takingpackage-lock.json
as a reference, making sure every time the exact package is installed.
For Windows users: Try deleting files: java.exe, javaw.exe and javaws.exe from Windows\System32
My issue was the java version 1.7 installed.
It is not related with Firewall. I had the same issue accessing from office and from mobile. I cleaned the cookies and worked fine. You can read more at https://support.google.com/chromebook/answer/1085581?hl=en
As Marc says, you run it exactly like you would from the command line. See Creating SQL Server Agent Jobs on MSDN.
If you don't want the image to affect the layout at all (and float on top of other content) you can apply the following CSS to the image:
position:absolute;
right:0;
top:0;
If you want it to float at the right of a particular parent section, you can add position: relative
to that section.
Change your code from:
render() {
return (
<ol>
{this.props.results.map((result) => (
<li>{result.text}</li>
))}
</ol>
);
}
To:
render() {
return (
<ol>
{this.props.results.map((result) => (
<li key={result.id}>{result.text}</li>
))}
</ol>
);
}
Then solved.
Install Postman native app, Chrome extension has been deprecated. (Mine was opening in own window but still ran as Chrome app)
I think the selected answer is correct and pretty sweet. I implemented it differently though, as I also wanted the result in random order.
static IEnumerable<SomeType> PickSomeInRandomOrder<SomeType>(
IEnumerable<SomeType> someTypes,
int maxCount)
{
Random random = new Random(DateTime.Now.Millisecond);
Dictionary<double, SomeType> randomSortTable = new Dictionary<double,SomeType>();
foreach(SomeType someType in someTypes)
randomSortTable[random.NextDouble()] = someType;
return randomSortTable.OrderBy(KVP => KVP.Key).Take(maxCount).Select(KVP => KVP.Value);
}
I figured it out, and it should also work for other systems too. It's a variation of WW's answer.
select rate
from d_payment_index
where fy = 2007
and payment_year = 2008
and program_id = 18
union
select 0 as rate
from d_payment_index
where not exists( select rate
from d_payment_index
where fy = 2007
and payment_year = 2008
and program_id = 18 )
If the issue is to create all the necessary parent directories, you could consider using os.MkDirAll()
MkdirAll
creates a directory named path, along with any necessary parents, and returns nil, or else returns an error.
The path_test.go is a good illustration on how to use it:
func TestMkdirAll(t *testing.T) {
tmpDir := TempDir()
path := tmpDir + "/_TestMkdirAll_/dir/./dir2"
err := MkdirAll(path, 0777)
if err != nil {
t.Fatalf("MkdirAll %q: %s", path, err)
}
defer RemoveAll(tmpDir + "/_TestMkdirAll_")
...
}
(Make sure to specify a sensible permission value, as mentioned in this answer)