The above answer by pl_rock is correct, the only thing I would add is to expect the ARG inside the Dockerfile if not you won't have access to it. So if you are doing
docker build -t essearch/ess-elasticsearch:1.7.6 --build-arg number_of_shards=5 --build-arg number_of_replicas=2 --no-cache .
Then inside the Dockerfile you should add
ARG number_of_replicas
ARG number_of_shards
I was running into this problem, so I hope I help someone (myself) in the future.
According to this MSDN blog: https://blogs.msdn.microsoft.com/manishagarwal/2005/09/28/resolving-file-references-in-team-build-part-2/
There is a search order for assemblies when building. The search order is as follows:
So, if the desired assembly is found by HintPath, but an alternate assembly can be found using ReferencePath, it will prefer the ReferencePath'd assembly to the HintPath'd one.
This will return the string only if the condition is true.
public String myMethod()
{
if(condition)
{
return x;
}
else
return "";
}
It just means it expects that as a key in your header data
import requests
endpoint = ".../api/ip"
data = {"ip": "1.1.2.3"}
headers = {"Authorization": "Bearer MYREALLYLONGTOKENIGOT"}
print(requests.post(endpoint, data=data, headers=headers).json())
I found the solution ! Delete folder named package in project directory and then rebuild to run it.
This error was occuring in my program because the resultset was calling more columns to be displayed in the PDF Document than the database contained. For example, the table contains 30 fields but the program was calling 35 (resultset.getString(35))
lines=[]
with open('file') as file:
lines.append(file.readline())
What type is the seahawk.flags variable?
In standard C++, enumerations are not type-safe. They are effectively integers.
AnimalFlags should NOT be the type of your variable. Your variable should be int and the error will go away.
Putting hexadecimal values like some other people suggested is not needed. It makes no difference.
The enum values ARE of type int by default. So you can surely bitwise OR combine them and put them together and store the result in an int.
The enum type is a restricted subset of int whose value is one of its enumerated values. Hence, when you make some new value outside of that range, you can't assign it without casting to a variable of your enum type.
You can also change the enum value types if you'd like, but there is no point for this question.
EDIT: The poster said they were concerned with type safety and they don't want a value that should not exist inside the int type.
But it would be type unsafe to put a value outside of AnimalFlags's range inside a variable of type AnimalFlags.
There is a safe way to check for out of range values though inside the int type...
int iFlags = HasClaws | CanFly;
//InvalidAnimalFlagMaxValue-1 gives you a value of all the bits
// smaller than itself set to 1
//This check makes sure that no other bits are set.
assert(iFlags & ~(InvalidAnimalFlagMaxValue-1) == 0);
enum AnimalFlags {
HasClaws = 1,
CanFly =2,
EatsFish = 4,
Endangered = 8,
// put new enum values above here
InvalidAnimalFlagMaxValue = 16
};
The above doesn't stop you from putting an invalid flag from a different enum that has the value 1,2,4, or 8 though.
If you want absolute type safety then you could simply create a std::set and store each flag inside there. It is not space efficient, but it is type safe and gives you the same ability as a bitflag int does.
C++0x note: Strongly typed enums
In C++0x you can finally have type safe enum values....
enum class AnimalFlags {
CanFly = 2,
HasClaws = 4
};
if(CanFly == 2) { }//Compiling error
besides, if you save ppt as .pps
format using microsoft powerpoint, you can use the following code:
<iframe src="file.pps" width="800px" heigt="600px"></iframe>
Another common way to do it is to convert ppt/doc to pdf,
then use swftool(http://www.swftools.org) to convert it to swf
finally, take FlexPaper(http://flexpaper.devaldi.com) as document viewer.
I had a hard time making this work too, the solution for me was to use both hyui and konstantin answers,
class ExampleTask extends AsyncTask<String, String, String> {
// Your onPreExecute method.
@Override
protected String doInBackground(String... params) {
// Your code.
if (condition_is_true) {
this.publishProgress("Show the dialog");
}
return "Result";
}
@Override
protected void onProgressUpdate(String... values) {
super.onProgressUpdate(values);
YourActivity.this.runOnUiThread(new Runnable() {
public void run() {
alertDialog.show();
}
});
}
}
<Spinner
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginRight="16dp"
android:paddingLeft="10dp"
android:spinnerMode="dropdown" />
//Your broadcast in service
(function () {
angular.module('appModule').factory('AppService', function ($rootScope, $timeout) {
function refreshData() {
$timeout(function() {
$rootScope.$broadcast('refreshData');
}, 0, true);
}
return {
RefreshData: refreshData
};
}); }());
//Controller Implementation
(function () {
angular.module('appModule').controller('AppController', function ($rootScope, $scope, $timeout, AppService) {
//Removes Listeners before adding them
//This line will solve the problem for multiple broadcast call
$scope.$$listeners['refreshData'] = [];
$scope.$on('refreshData', function() {
$scope.showData();
});
$scope.onSaveDataComplete = function() {
AppService.RefreshData();
};
}); }());
I'm using AWS Elasticbeanstalk + Docker + Supervisord.
Just add some code in Dockerfile
.
CMD echo 123.123.123.123 this_is_my.host >> /etc/hosts; supervisord -n;
If you are using a ToolStripComboBox there is no DataSource exposed (.NET 4.0):
List<string> someList = new List<string>();
someList.Add("value");
someList.Add("value");
someList.Add("value");
toolStripComboBox1.Items.AddRange(someList.ToArray());
Also; auto it = std::next(v.begin(), index);
Update: Needs a C++11x compliant compiler
It's all about the linkage.
The previous answers provided good explainations about extern
.
But I want to add an important point.
You ask about extern
in C++ not in C and I don't know why there is no answer mentioning about the case when extern
comes with const
in C++.
In C++, a const
variable has internal linkage by default (not like C).
So this scenario will lead to linking error:
Source 1 :
const int global = 255; //wrong way to make a definition of global const variable in C++
Source 2 :
extern const int global; //declaration
It need to be like this:
Source 1 :
extern const int global = 255; //a definition of global const variable in C++
Source 2 :
extern const int global; //declaration
Peek into what is happening inside tomcat through Visual VM. http://www.skill-guru.com/blog/2010/10/05/increasing-permgen-size-in-your-server/
Very short summarized, I will say that Spring is the "glue" in your application. It's used to integrate different frameworks and your own code.
You can do this with a Correlated Subquery (That is a subquery wherein you reference a field in the main query). In this case:
SELECT *
FROM yourtable t1
WHERE date = (SELECT max(date) from yourtable WHERE id = t1.id)
Here we give the yourtable
table an alias of t1
and then use that alias in the subquery grabbing the max(date)
from the same table yourtable
for that id
.
You could iterate over the anonymous type's properties using Reflection; see if there is a "Checked" property and if there is then get its value.
See this blog post: http://blogs.msdn.com/wriju/archive/2007/10/26/c-3-0-anonymous-type-and-net-reflection-hand-in-hand.aspx
So something like:
foreach(object o in nodes)
{
Type t = o.GetType();
PropertyInfo[] pi = t.GetProperties();
foreach (PropertyInfo p in pi)
{
if (p.Name=="Checked" && !(bool)p.GetValue(o))
Console.WriteLine("awesome!");
}
}
A bare repository is pretty much something you only push to and fetch from. You cannot do much directly "in it": you cannot check stuff out, create references (branches, tags), run git status
, etc.
If you want to create a new branch in a bare Git repository, you can push a branch from a clone to your bare repo:
# initialize your bare repo
$ git init --bare test-repo.git
# clone it and cd to the clone's root directory
$ git clone test-repo.git/ test-clone
Cloning into 'test-clone'...
warning: You appear to have cloned an empty repository.
done.
$ cd test-clone
# make an initial commit in the clone
$ touch README.md
$ git add .
$ git commit -m "add README"
[master (root-commit) 65aab0e] add README
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 README.md
# push to origin (i.e. your bare repo)
$ git push origin master
Counting objects: 3, done.
Writing objects: 100% (3/3), 219 bytes | 0 bytes/s, done.
Total 3 (delta 0), reused 0 (delta 0)
To /Users/jubobs/test-repo.git/
* [new branch] master -> master
This will work. Define this, then call it from when you need it. (Good for button logic if you are making a clear button):
Sub ResetFilters()
On Error Resume Next
ActiveSheet.ShowAllData
End Sub
Oh, god! After spending several hours and downloading the Android sources, I have finally come to a solution.
If you look at the Activity class, you will see, that finish()
method only sends back the result if there is a mParent
property set to null
. Otherwise the result is lost.
public void finish() {
if (mParent == null) {
int resultCode;
Intent resultData;
synchronized (this) {
resultCode = mResultCode;
resultData = mResultData;
}
if (Config.LOGV) Log.v(TAG, "Finishing self: token=" + mToken);
try {
if (ActivityManagerNative.getDefault()
.finishActivity(mToken, resultCode, resultData)) {
mFinished = true;
}
} catch (RemoteException e) {
// Empty
}
} else {
mParent.finishFromChild(this);
}
}
So my solution is to set result to the parent activity if present, like that:
Intent data = new Intent();
[...]
if (getParent() == null) {
setResult(Activity.RESULT_OK, data);
} else {
getParent().setResult(Activity.RESULT_OK, data);
}
finish();
I hope that will be helpful if someone looks for this problem workaround again.
maybe
string = document.location.href;
arrayOfStrings = string.toString().split('/');
assuming you want the current url
public static bool IsNegative<T>(T value)
where T : struct, IComparable<T>
{
return value.CompareTo(default(T)) < 0;
}
CSS
select{
color:red;
}
HTML
<select id="sel" onclick="document.getElementById('sel').style.color='green';">
<option>Select Your Option</option>
<option value="">INDIA</option>
<option value="">USA</option>
</select>
The above code will change the colour of text on click of the select box.
and if you want every option different colour, give separate class or id to all options.
If you (or a helpful admin) runs Set-ExecutionPolicy
as administrator, the policy will be set for all users. (I would suggest "remoteSigned" rather than "unrestricted" as a safety measure.)
NB.: On a 64-bit OS you need to run Set-ExecutionPolicy
for 32-bit and 64-bit PowerShell separately.
Working on Mac I followed the answer of Sean Patrick Floyd placing a settings.xml like above in my user folder /Users/user/.m2/
But this did not help. So I opened a Terminal and did a ls -la on the folder. This was showing
-rw-r--r--@
thus staff and everone can at least read the file. So I wondered if the message isn't wrong and if the real cause is the lack of write permissions. I set the file to:
-rw-r--rw-@
This did it. The message disappeared.
Try this to be able to catch the thrown exception:
$server_name = "your server name";
$database_name = "your database name";
try {
$conn = new PDO("sqlsrv:Server=$server_name;Database=$database_name;ConnectionPooling=0", "user_name", "password");
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch(PDOException $e) {
$e->getMessage();
}
Step1:-Install Python3 & Python3-dev Both
sudo apt-get install python3 python3-dev
Step2:- Install Python & Mysql Connector
sudo apt-get install libmysqlclient-dev
step3:- Install python mysql client
sudo apt-get install mysqlclient
This will Solve your Problem
Arrays are special objects in java, they have a simple attribute named length
which is final
.
There is no "class definition" of an array (you can't find it in any .class file), they're a part of the language itself.
10.7. Array Members
The members of an array type are all of the following:
- The
public
final
fieldlength
, which contains the number of components of the array.length
may be positive or zero.The
public
methodclone
, which overrides the method of the same name in classObject
and throws no checked exceptions. The return type of theclone
method of an array typeT[]
isT[]
.A clone of a multidimensional array is shallow, which is to say that it creates only a single new array. Subarrays are shared.
- All the members inherited from class
Object
; the only method ofObject
that is not inherited is itsclone
method.
Resources:
routes.rb
get '*unmatched_route', to: 'main#not_found'
main_controller.rb
def not_found
render :file => "#{Rails.root}/public/404.html", :status => 404, :layout => false
end
Try this
UPDATE `table` SET `uid` = CASE
WHEN id = 1 THEN 2952
WHEN id = 2 THEN 4925
WHEN id = 3 THEN 1592
ELSE `uid`
END
WHERE id in (1,2,3)
If it is simple application then getSystemResourceAsStream can also be used.
try (InputStream inputStream = ClassLoader.getSystemResourceAsStream("config.properties"))..
#!/bin/bash
# docker-gc --- Remove stopped docker containers
RUNNING=$(docker ps -q)
ALL=$(docker ps -a -q)
for container in $ALL ; do
[[ "$RUNNING" =~ "$container" ]] && continue
echo Removing container: $(docker rm $container)
done
You need to remove the npm package manually.
first unlink node: brew link -n node
remove npm folder: rm -R /usr/local/Cellar/node/0.8.10/lib/node_modules/npm
link again: brew link node
there will be a soft link to the new location of npm
There are a number of ways to create arrays.
The traditional way of declaring and initializing an array looks like this:
var a = new Array(5); // declare an array "a", of size 5
a = [0, 0, 0, 0, 0]; // initialize each of the array's elements to 0
Or...
// declare and initialize an array in a single statement
var a = new Array(0, 0, 0, 0, 0);
^(((([13578]|0[13578]|1[02])[-](0[1-9]|[1-9]|1[0-9]|2[0-9]|3[01]))|(([469]|0[469]|11)[-]([1-9]|1[0-9]|2[0-9]|3[0]))|((2|02)([-](0[1-9]|1[0-9]|2[0-8]))))[-](19([6-9][0-9])|20([0-9][0-9])))|((02)[-](29)[-](19(6[048]|7[26]|8[048]|9[26])|20(0[048]|1[26]|2[048])))
this regex will validate dates in format:
12-30-2016 (mm-dd-yyyy) or 12-3-2016 (mm-d-yyyy) or 1-3-2016 (m-d-yyyy) or 1-30-2016 (m-dd-yyyy)
If you find the 1px jump before expanding and after collapsing when using the CSS solution a bit annoying, here's a simple JavaScript solution for Bootstrap 3...
Just add this somewhere in your code:
$(document).ready(
$('.collapse').on('show.bs.collapse hide.bs.collapse', function(e) {
e.preventDefault();
}),
$('[data-toggle="collapse"]').on('click', function(e) {
e.preventDefault();
$($(this).data('target')).toggleClass('in');
})
);
If you also want to remove hash, try this one: window.location.href.split(/[?#]/)[0]
For all intents and purposes, C++ supports this via lambdas:1
int main() {
auto f = []() { return 42; };
std::cout << "f() = " << f() << std::endl;
}
Here, f
is a lambda object that acts as a local function in main
. Captures can be specified to allow the function to access local objects.
Behind the scenes, f
is a function object (i.e. an object of a type that provides an operator()
). The function object type is created by the compiler based on the lambda.
1 since C++11
In linux just do
sudo systemctl stop mysql
sudo systemctl start mysql
worked for me
Do you actually need more information than plain IEnumerable
gives you? Just cast it to that and use foreach
with it. I face exactly the same situation in some bits of Protocol Buffers, and I've found that casting to IEnumerable
(or IList
to access it like a list) works very well.
A custom class to serialise:
[Serializable]
public class TestClass
{
int x = 2;
int y = 4;
public TestClass(){}
public TestClass(int x, int y)
{
this.x = x;
this.y = y;
}
public int TestFunction()
{
return x + y;
}
}
I have attached the code snippet. Maybe this can help you out.
static void Main(string[] args)
{
XmlSerializer xmlSerializer = new XmlSerializer(typeof(TestClass));
MemoryStream memoryStream = new MemoryStream();
XmlTextWriter xmlWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
TestClass domain = new TestClass(10, 3);
xmlSerializer.Serialize(xmlWriter, domain);
memoryStream = (MemoryStream)xmlWriter.BaseStream;
string xmlSerializedString = ConvertByteArray2Str(memoryStream.ToArray());
TestClass xmlDomain = (TestClass)DeserializeObject(xmlSerializedString);
Console.WriteLine(xmlDomain.TestFunction().ToString());
Console.ReadLine();
}
Late to the party. I was looking into this myself and just found about this axes option called ColorOrder you can specify the colour order for the session or just for the figure and then just plot an array and let MATLAB automatically cycle through the colours specified.
see Changing the Default ColorOrder
example
set(0,'DefaultAxesColorOrder',jet(5))
A=rand(10,5);
plot(A);
This is useful when you want to compare data that correspond to different units. In that case, you want to remove the units. To do that in a consistent way of all the data, you transform the data in a way that the variance is unitary and that the mean of the series is 0.
I had that problem, if you are calling your REST Methods from another Assembly you must be sure that all your references have the same version as your main project references, otherwise will never find your controllers.
Regards.
From the docs: http://momentjs.com/docs/#/parsing/unix-timestamp-milliseconds/
So use either of these:
moment(...).valueOf()
to parse a preexisting date and convert the representation to a unix timestamp
moment().valueOf()
for the current unix timestamp
Seems like nobody was able to answer the question so far :)
I use EclipseLink's MOXy to dynamically generate binding classes and then recursively go through the bound types. It is somewhat heavy, but it allows XPath value injection once the object tree is instantiated:
InputStream in = new FileInputStream(PATH_TO_XSD);
DynamicJAXBContext jaxbContext =
DynamicJAXBContextFactory.createContextFromXSD(in, null, Thread.currentThread().getContextClassLoader(), null);
DynamicType rootType = jaxbContext.getDynamicType(YOUR_ROOT_TYPE);
DynamicEntity root = rootType.newDynamicEntity();
traverseProps(jaxbContext, root, rootType, 0);
TraverseProps is pretty simple recursive method:
private void traverseProps(DynamicJAXBContext c, DynamicEntity e, DynamicType t, int level) throws DynamicException, InstantiationException, IllegalAccessException{
if (t!=null) {
logger.info(indent(level) + "type [" + t.getName() + "] of class [" + t.getClassName() + "] has " + t.getNumberOfProperties() + " props");
for (String pName:t.getPropertiesNames()){
Class<?> clazz = t.getPropertyType(pName);
logger.info(indent(level) + "prop [" + pName + "] in type: " + clazz);
//logger.info("prop [" + pName + "] in entity: " + e.get(pName));
if (clazz==null){
// need to create an instance of object
String updatedClassName = pName.substring(0, 1).toUpperCase() + pName.substring(1);
logger.info(indent(level) + "Creating new type instance for " + pName + " using following class name: " + updatedClassName );
DynamicType child = c.getDynamicType("generated." + updatedClassName);
DynamicEntity childEntity = child.newDynamicEntity();
e.set(pName, childEntity);
traverseProps(c, childEntity, child, level+1);
} else {
// just set empty value
e.set(pName, clazz.newInstance());
}
}
} else {
logger.warn("type is null");
}
}
Converting everything to XML is pretty easy:
Marshaller marshaller = jaxbContext.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(root, System.out);
axwebbrowser1.Silent = true;
Just to expand on juanchopanza's answer a bit...
for (int i=0; i=((Main.size())-1); i++) {
cout << Main[i] << '\n';
}
does this:
i
and set it to 0
.i
to Main.size() - 1
. Since Main
is empty, Main.size()
is 0
, and i
gets set to -1
.Main[-1]
is an out-of-bounds access. Kaboom.You might want to consider using a Collection
implementation instead of a flat array.
The Collection
interface defines a contains(Object o)
method, which returns true
/false
.
ArrayList
implementation defines an indexOf(Object o)
, which gives an index, but that method is not on all collection implementations.
Both these methods require proper implementations of the equals()
method, and you probably want a properly implemented hashCode()
method just in case you are using a hash based Collection
(e.g. HashSet
).
In C++, unlike (say) Java, an instance of a nested class doesn't intrinsically belong to any instance of the enclosing class. So bar::getA
doesn't have any specific instance of foo
whose a
it can be returning. I'm guessing that what you want is something like:
class bar {
private:
foo * const owner;
public:
bar(foo & owner) : owner(&owner) { }
int getA() {return owner->a;}
};
But even for this you may have to make some changes, because in versions of C++ before C++11, unlike (again, say) Java, a nested class has no special access to its enclosing class, so it can't see the protected
member a
. This will depend on your compiler version. (Hat-tip to Ken Wayne VanderLinde for pointing out that C++11 has changed this.)
This probably works for a lot of things but it's not enough for Maven and certainly not for the maven compiler plugin.
Check Mike's answer to his own question here: stackoverflow question 24705877
This solved the issue for me both command line AND within eclipse.
Also, @LinGao answer to stackoverflow question 2503658 and the use of the $JAVACMD variable might help but I haven't tested it myself.
String.split uses Regular Expressions, also you don't need to allocate an extra array for your split.
The split-method will give you a list., the problem is that you try to pre-define how many occurrences you have of a tab, but how would you Really know that? Try using the Scanner or StringTokenizer and just learn how splitting strings work.
Let me explain Why \t does not work and why you need \\\\
to escape \\
.
Okay, so when you use Split, it actually takes a regex ( Regular Expression ) and in regular expression you want to define what Character to split by, and if you write \t that actually doesn't mean \t
and what you WANT to split by is \t
, right? So, by just writing \t
you tell your regex-processor that "Hey split by the character that is escaped t" NOT "Hey split by all characters looking like \t
". Notice the difference? Using \ means to escape something. And \
in regex means something Totally different than what you think.
So this is why you need to use this Solution:
\\t
To tell the regex processor to look for \t. Okay, so why would you need two of em? Well, the first \ escapes the second, which means it will look like this: \t when you are processing the text!
Now let's say that you are looking to split \
Well then you would be left with \\ but see, that doesn't Work! because \ will try to escape the previous char! That is why you want the Output to be \\ and therefore you need to have \\\\.
I really hope the examples above helps you understand why your solution doesn't work and how to conquer other ones!
Now, I've given you this answer before, maybe you should start looking at them now.
OTHER METHODS
StringTokenizer
You should look into the StringTokenizer, it's a very handy tool for this type of work.
Example
StringTokenizer st = new StringTokenizer("this is a test");
while (st.hasMoreTokens()) {
System.out.println(st.nextToken());
}
This will output
this
is
a
test
You use the Second Constructor for StringTokenizer to set the delimiter:
StringTokenizer(String str, String delim)
Scanner
You could also use a Scanner as one of the commentators said this could look somewhat like this
Example
String input = "1 fish 2 fish red fish blue fish";
Scanner s = new Scanner(input).useDelimiter("\\s*fish\\s*");
System.out.println(s.nextInt());
System.out.println(s.nextInt());
System.out.println(s.next());
System.out.println(s.next());
s.close();
The output would be
1
2
red
blue
Meaning that it will cut out the word "fish" and give you the rest, using "fish" as the delimiter.
Looking at the Latin-1
unicode table, I see the character code 00E9
"LATIN SMALL LETTER E WITH ACUTE". This is the accented character in your sample data. A simple test in Python
shows that UTF-8
encoding for this character is different from the unicode (almost UTF-16
) encoding.
>>> u'\u00e9'
u'\xe9'
>>> u'\u00e9'.encode('utf-8')
'\xc3\xa9'
>>>
I suggest you try to encode("UTF-8")
the unicode data before calling the special unicode_csv_reader()
.
Simply reading the data from a file might hide the encoding, so check the actual character values.
According to this site, this is supported in the playbackRate
and defaultPlaybackRate
attributes, accessible via the DOM. Example:
/* play video twice as fast */
document.querySelector('video').defaultPlaybackRate = 2.0;
document.querySelector('video').play();
/* now play three times as fast just for the heck of it */
document.querySelector('video').playbackRate = 3.0;
The above works on Chrome 43+, Firefox 20+, IE 9+, Edge 12+.
Few things to fix here:
Your code will look something like this
List<Answer> answers = new List<Answer>();
/* test
answers.Add(new Answer() { correct = false });
answers.Add(new Answer() { correct = true });
answers.Add(new Answer() { correct = false });
*/
Answer answer = answers.Single(a => a.correct == true);
and the class
class Answer
{
public bool correct;
}
If you can link to a C library, you can use libenca
. See http://cihar.com/software/enca/. From the man page:
Enca reads given text files, or standard input when none are given, and uses knowledge about their language (must be supported by you) and a mixture of parsing, statistical analysis, guessing and black magic to determine their encodings.
It's GPL v2.
-Xms initial heap size for the startup, however, during the working process the heap size can be less than -Xms due to users' inactivity or GC iterations. This is not a minimal required heap size.
-Xmx maximal heap size
For msysgit 1.8.0, download git-credential-wincred.exe from https://github.com/downloads/msysgit/git/git-credential-wincred.zip and put into C:\Program Files\Git\libexec\git-core
For msysgit 1.8.1 and later, the exe is built-in.
in git config, add the following settings.
[credential] helper = wincred
"How to avoid pressing Enter with
getchar()
?"
First of all, terminal input is commonly either line or fully buffered. This means that the operation system stores the actual input from the terminal into a buffer. Usually, this buffer is flushed to the program when f.e. \n
was signalized/provided in stdin
. This is f.e. made by a press to Enter.
getchar()
is just at the end of the chain. It has no ability to actually influence the buffering process.
"How can I do this?"
Ditch getchar()
in the first place, if you don´t want to use specific system calls to change the behavior of the terminal explicitly like well explained in the other answers.
There is unfortunately no standard library function and with that no portable way to flush the buffer at single character input. However, there are implementation-based and non-portable solutions.
In Windows/MS-DOS, there are the getch()
and getche()
functions in the conio.h
header file, which do exactly the thing you want - read a single character without the need to wait for the newline to flush the buffer.
The main difference between getch()
and getche()
is that getch()
does not immediately output the actual input character in the console, while getche()
does. The additional "e"
stands for echo.
Example:
#include <stdio.h>
#include <conio.h>
int main (void)
{
int c;
while ((c = getche()) != EOF)
{
if (c == '\n')
{
break;
}
printf("\n");
}
return 0;
}
In Linux, a way to obtain direct character processing and output is to use the cbreak()
and echo()
options and the getch()
and refresh()
routines in the ncurses-library.
Note, that you need to initialize the so called standard screen with the initscr()
and close the same with the endwin()
routines.
Example:
#include <stdio.h>
#include <ncurses.h>
int main (void)
{
int c;
cbreak();
echo();
initscr();
while ((c = getch()) != ERR)
{
if (c == '\n')
{
break;
}
printf("\n");
refresh();
}
endwin();
return 0;
}
Note: You need to invoke the compiler with the -lncurses
option, so that the linker can search and find the ncurses-library.
$('title').text();
returns all the title
but if you just want the page title then use
document.title
document.getElementById('loginSubmit').submit();
or, use the same code as the onclick
handler:
changeAction('submitInput','loginForm');
document.forms['loginForm'].submit();
(Though that onclick
handler is kind of stupidly-written: document.forms['loginForm']
could be replaced with this
.)
You can try this,
$info = pathinfo($_FILES['userFile']['name']);
$ext = $info['extension']; // get the extension of the file
$newname = "newname.".$ext;
$target = 'images/'.$newname;
move_uploaded_file( $_FILES['userFile']['tmp_name'], $target);
If you want to change the backgorund image or color of the button when it is pressed, then just copy this code and paste in your project at exact location described below.
<!-- Create new xml file like mybtn_layout.xml file in drawable -->
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/pressed" /> <!--pressed -->
<item android:drawable="@drawable/normal" /> <!-- Normal -->
</selector>
<!-- Now this file should be in a drawable folder and use this
single line code in button code to get all the properties of this xml file -->
<Button
android:id="@+id/street_btn"
android:layout_width="wrap_content"
android:background="@drawable/layout_a" > <!-- your required code -->
</Button>
Use a double not:
!!1 = true;
!!0 = false;
obj.isChecked = !!parseInt(obj.isChecked);
You can use the setsockopt function to set a timeout on receive operations:
SO_RCVTIMEO
Sets the timeout value that specifies the maximum amount of time an input function waits until it completes. It accepts a timeval structure with the number of seconds and microseconds specifying the limit on how long to wait for an input operation to complete. If a receive operation has blocked for this much time without receiving additional data, it shall return with a partial count or errno set to [EAGAIN] or [EWOULDBLOCK] if no data is received. The default for this option is zero, which indicates that a receive operation shall not time out. This option takes a timeval structure. Note that not all implementations allow this option to be set.
// LINUX
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
// WINDOWS
DWORD timeout = timeout_in_seconds * 1000;
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout, sizeof timeout);
// MAC OS X (identical to Linux)
struct timeval tv;
tv.tv_sec = timeout_in_seconds;
tv.tv_usec = 0;
setsockopt(sockfd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&tv, sizeof tv);
Reportedly on Windows this should be done before calling bind
. I have verified by experiment that it can be done either before or after bind
on Linux and OS X.
The Apple Tech Note also described you can restore the device to reset the Push Notification dialog.
It does not say that you can also use the option "General -> Reset -> Erase All Content And Settings" on the device itself (iOS 5.x).
Whilst it looks like sequences are the equivalent to MySQL auto_increment, there are some subtle but important differences:
The serial column gets incremented on failed queries. This leads to fragmentation from failed queries, not just row deletions. For example, run the following queries on your PostgreSQL database:
CREATE TABLE table1 (
uid serial NOT NULL PRIMARY KEY,
col_b integer NOT NULL,
CHECK (col_b>=0)
);
INSERT INTO table1 (col_b) VALUES(1);
INSERT INTO table1 (col_b) VALUES(-1);
INSERT INTO table1 (col_b) VALUES(2);
SELECT * FROM table1;
You should get the following output:
uid | col_b
-----+-------
1 | 1
3 | 2
(2 rows)
Notice how uid goes from 1 to 3 instead of 1 to 2.
This still occurs if you were to manually create your own sequence with:
CREATE SEQUENCE table1_seq;
CREATE TABLE table1 (
col_a smallint NOT NULL DEFAULT nextval('table1_seq'),
col_b integer NOT NULL,
CHECK (col_b>=0)
);
ALTER SEQUENCE table1_seq OWNED BY table1.col_a;
If you wish to test how MySQL is different, run the following on a MySQL database:
CREATE TABLE table1 (
uid int unsigned NOT NULL AUTO_INCREMENT PRIMARY KEY,
col_b int unsigned NOT NULL
);
INSERT INTO table1 (col_b) VALUES(1);
INSERT INTO table1 (col_b) VALUES(-1);
INSERT INTO table1 (col_b) VALUES(2);
You should get the following with no fragementation:
+-----+-------+
| uid | col_b |
+-----+-------+
| 1 | 1 |
| 2 | 2 |
+-----+-------+
2 rows in set (0.00 sec)
This was pointed out by @trev in a previous answer.
To simulate this manually set the uid to 4 which will "clash" later.
INSERT INTO table1 (uid, col_b) VALUES(5, 5);
Table data:
uid | col_b
-----+-------
1 | 1
3 | 2
5 | 5
(3 rows)
Run another insert:
INSERT INTO table1 (col_b) VALUES(6);
Table data:
uid | col_b
-----+-------
1 | 1
3 | 2
5 | 5
4 | 6
Now if you run another insert:
INSERT INTO table1 (col_b) VALUES(7);
It will fail with the following error message:
ERROR: duplicate key value violates unique constraint "table1_pkey" DETAIL: Key (uid)=(5) already exists.
In contrast, MySQL will handle this gracefully as shown below:
INSERT INTO table1 (uid, col_b) VALUES(4, 4);
Now insert another row without setting uid
INSERT INTO table1 (col_b) VALUES(3);
The query doesn't fail, uid just jumps to 5:
+-----+-------+
| uid | col_b |
+-----+-------+
| 1 | 1 |
| 2 | 2 |
| 4 | 4 |
| 5 | 3 |
+-----+-------+
Testing was performed on MySQL 5.6.33, for Linux (x86_64) and PostgreSQL 9.4.9
You probably just need to provide a user name and password in your connectionstring and set Integrated Security=false
The OP asked how to solve this problem without a loop! For some reason it is fashionable these days to avoid loops. Why is this? Probably there is a realization that using map
, reduce
, filter
, and friends, and methods like each
hide loops and cut down on program verbage and are kind of cool. The same goes for really sweet Unix pipelines. Or jQuery code. Things just look great without loops.
But does Java have a map
method? Not really, but we could define one with a Function
interface with an eval
or exec
method. It isn't too hard and would be a good exercise. It might be expensive and not used in practice.
Another way to do this without a loop is to use tail recursion. Yes, it is kind of silly and no one would use it in practice either, but it does show, maybe, that loops are fine in this case. Nevertheless, just to show "yet another loop free example" and to have fun, here is:
import java.util.Arrays;
public class FillExample {
private static void fillRowsWithZeros(double[][] a, int rows, int cols) {
if (rows >= 0) {
double[] row = new double[cols];
Arrays.fill(row, 0.0);
a[rows] = row;
fillRowsWithZeros(a, rows - 1, cols);
}
}
public static void main(String[] args) {
double[][] arr = new double[20][4];
fillRowsWithZeros(arr, arr.length - 1, arr[0].length);
System.out.println(Arrays.deepToString(arr));
}
}
It isn't pretty, but in answer to the OP's question, there are no explicit loops.
You have to specify the name of the custom view and its related model in Controller Action method.
public ActionResult About()
{
return View("NameOfViewYouWantToReturn",Model);
}
How do I use Python's itertools.groupby()?
You can use groupby to group things to iterate over. You give groupby an iterable, and a optional key function/callable by which to check the items as they come out of the iterable, and it returns an iterator that gives a two-tuple of the result of the key callable and the actual items in another iterable. From the help:
groupby(iterable[, keyfunc]) -> create an iterator which returns
(key, sub-iterator) grouped by each value of key(value).
Here's an example of groupby using a coroutine to group by a count, it uses a key callable (in this case, coroutine.send
) to just spit out the count for however many iterations and a grouped sub-iterator of elements:
import itertools
def grouper(iterable, n):
def coroutine(n):
yield # queue up coroutine
for i in itertools.count():
for j in range(n):
yield i
groups = coroutine(n)
next(groups) # queue up coroutine
for c, objs in itertools.groupby(iterable, groups.send):
yield c, list(objs)
# or instead of materializing a list of objs, just:
# return itertools.groupby(iterable, groups.send)
list(grouper(range(10), 3))
prints
[(0, [0, 1, 2]), (1, [3, 4, 5]), (2, [6, 7, 8]), (3, [9])]
We can set it using WebServerFactoryCustomizer
. This can be added directly in the spring boot main method class which starts up the Spring ApplicationContext.
@Bean
public WebServerFactoryCustomizer<ConfigurableServletWebServerFactory>
webServerFactoryCustomizer() {
return factory -> factory.setContextPath("/demo");
}
I'm afraid that the first of those command lines unconditionally deleted from the working copy all the files that are in git's staging area. The second one unstaged all the files that were tracked but have now been deleted. Unfortunately this means that you will have lost any uncommitted modifications to those files.
If you want to get your working copy and index back to how they were at the last commit, you can (carefully) use the following command:
git reset --hard
I say "carefully" since git reset --hard
will obliterate uncommitted changes in your working copy and index. However, in this situation it sounds as if you just want to go back to the state at your last commit, and the uncommitted changes have been lost anyway.
Update: it sounds from your comments on Amber's answer that you haven't yet created any commits (since HEAD cannot be resolved), so this won't help, I'm afraid.
As for how those pipes work: git ls-files -z
and git diff --name-only --diff-filter=D -z
both output a list of file names separated with the byte 0
. (This is useful, since, unlike newlines, 0
bytes are guaranteed not to occur in filenames on Unix-like systems.) The program xargs
essentially builds command lines from its standard input, by default by taking lines from standard input and adding them to the end of the command line. The -0
option says to expect standard input to by separated by 0
bytes. xargs
may invoke the command several times to use up all the parameters from standard input, making sure that the command line never becomes too long.
As a simple example, if you have a file called test.txt
, with the following contents:
hello
goodbye
hello again
... then the command xargs echo whatever < test.txt
will invoke the command:
echo whatever hello goodbye hello again
This is now a multiple-year old question, but being very popular, it's worth mentioning a fantastic resource for learning about the C++11 memory model. I see no point in summing up his talk in order to make this yet another full answer, but given this is the guy who actually wrote the standard, I think it's well worth watching the talk.
Herb Sutter has a three hour long talk about the C++11 memory model titled "atomic<> Weapons", available on the Channel9 site - part 1 and part 2. The talk is pretty technical, and covers the following topics:
The talk doesn't elaborate on the API, but rather on the reasoning, background, under the hood and behind the scenes (did you know relaxed semantics were added to the standard only because POWER and ARM do not support synchronized load efficiently?).
vi your_filename
hit esc
Type :%!xxd
to view the hex strings, the n :%!xxd -r
to return to normal editing.
Jinja 2.6 does not have the map function. So an alternate way of doing this would be:
set_fact: foo="{% for i in bar_result.results %}{{ i.ansible_facts.foo_item }}{%endfor%}"
Download the class.pdf2text.php @ https://pastebin.com/dvwySU1a or http://www.phpclasses.org/browse/file/31030.html (Registration required)
Code:
include('class.pdf2text.php');
$a = new PDF2Text();
$a->setFilename('filename.pdf');
$a->decodePDF();
echo $a->output();
class.pdf2text.php
Project Home
pdf2textclass
doesn't work with all the PDF's I've tested, If it doesn't work for you, try PDF Parser
You just have to write this:
private PowerManager.WakeLock wl;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "DoNjfdhotDimScreen");
}//End of onCreate
@Override
protected void onPause() {
super.onPause();
wl.release();
}//End of onPause
@Override
protected void onResume() {
super.onResume();
wl.acquire();
}//End of onResume
and then add permission in the manifest file
<uses-permission android:name="android.permission.WAKE_LOCK" />
Now your activity will always be awake.
You can do other things like w1.release()
as per your requirement.
Order is arbitrary, but there are several ways to sort them. One of them is as following:
#First, get the files:
import glob
import re
files =glob.glob1(img_folder,'*'+output_image_format)
# if you want sort files according to the digits included in the filename, you can do as following:
files = sorted(files, key=lambda x:float(re.findall("(\d+)",x)[0]))
Use LEFT JOIN
SELECT a.*
FROM table1 a
LEFT JOIN table2 b
on a.ID = b.ID
WHERE b.id IS NULL
$("#buttonid").click(function(){
$('#modal_id_you_want_to_hid').modal('hide')
});
// same as above button id
$("#buttonid").click(function(){
$('#Modal_id_You_Want_to_Show').modal({backdrop: 'static', keyboard: false})});
I Have come across this myself because I have multiple submit buttons with different 'name' values, so that when submitted they do different things on the same php file. The enter
/ return
button breaks this as those values aren't submitted.
So I was thinking, does the enter
/ return
button activate the first submit button in the form?
That way you could have a 'vanilla' submit button that is either hidden or has a 'name' value that returns the executing php file back to the page with the form in it.
Or else a default (hidden) 'name' value that the keypress activates, and the submit buttons overwrite with their own 'name' values.
Just a thought.
Update for RxJS 6 (April 2018)
It is now perfectly fine to import directly from rxjs
. (As can be seen in Angular 6+). Importing from rxjs/operators
is also fine and it is actually no longer possible to import operators globally (one of major reasons for refactoring rxjs 6
and the new approach using pipe
). Thanks to this treeshaking can now be used as well.
Sample code from rxjs repo:
import { Observable, Subject, ReplaySubject, from, of, range } from 'rxjs';
import { map, filter, switchMap } from 'rxjs/operators';
range(1, 200)
.pipe(filter(x => x % 2 === 1), map(x => x + x))
.subscribe(x => console.log(x));
Backwards compatibility for rxjs < 6?
rxjs team released a compatibility package on npm that is pretty much install & play. With this all your rxjs 5.x
code should run without any issues. This is especially useful now when most of the dependencies (i.e. modules for Angular) are not yet updated.
Method 1:
DesiredCapabilities capabilities = DesiredCapabilities.internetExplorer();
capabilities.setCapability(InternetExplorerDriver.IGNORE_ZOOM_SETTING, true);
System.setProperty("webdriver.ie.driver","D:\\IEDriverServer_Win32_2.33.0\\IEDriverServer.exe");
WebDriver driver= new InternetExplorerDriver(capabilities);
driver.get(baseURl);
//Identify your elements and go ahead testing...
This will definetly not show any error and browser will open and also will navigate to the URL.
BUT This will not identify any element and hence you can not proceed.
Why? Because we have simly suppressed the error and asked IE to open and get that URL. However Selenium will identify elements only if the browser zoom is 100% ie. default. So the final code would be
Method 2 The robust and full proof way:
DesiredCapabilities capabilities = DesiredCapabilities.internetExplorer();
capabilities.setCapability(InternetExplorerDriver.IGNORE_ZOOM_SETTING, true);
System.setProperty("webdriver.ie.driver","D:\\IEDriverServer_Win32_2.33.0\\IEDriverServer.exe");
WebDriver driver= new InternetExplorerDriver(capabilities);
driver.get(baseURl);
driver.findElement(By.tagName("html")).sendKeys(Keys.chord(Keys.CONTROL,"0"));
//Identify your elements and go ahead testing...
Hope this helps. Do let me know if further information is required.
you have to check your linked project, in the new version of RN, don't need to link if you linked it cause a problem, I Fixed the problem by unlinked manually the dependency that I linked and re-run.
I really liked @Jadiel de Armas examples.
I would like to add a small insight to how elements are ordered for .view(...)
what about changing the position: relative on your #content #text div to position: absolute
#content #text {
position:absolute;
width:950px;
height:215px;
color:red;
}
then you can use the css properties left and top to position within the #content div
One option is to use Outlook. We have a mail manager application that access an exchange server and uses outlook as the interface. Its dirty but it works.
Example code:
public Outlook.MAPIFolder getInbox()
{
mailSession = new Outlook.Application();
mailNamespace = mailSession.GetNamespace("MAPI");
mailNamespace.Logon(mail_username, mail_password, false, true);
return MailNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
}
Extending a class doesn't mean that you are instantiating the class. Actually, in your case you are creating an instance of the subclass.
I am pretty sure that abstract classes do not allow initiating. So, I'd say no: you can't instantiate an abstract class. But, you can extend it / inherit it.
You can't directly instantiate an abstract class. But it doesn't mean that you can't get an instance of class (not actully an instance of original abstract class) indirectly. I mean you can not instantiate the orginial abstract class, but you can:
So you get access to all the methods and properties in an abstract class via the derived class instance.
Read-Host
is a simple option for getting string input from a user.
$name = Read-Host 'What is your username?'
To hide passwords you can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the password to plain text:
[Runtime.InteropServices.Marshal]::PtrToStringAuto(
[Runtime.InteropServices.Marshal]::SecureStringToBSTR($pass))
As for the type returned by $host.UI.Prompt()
, if you run the code at the link posted in @Christian's comment, you can find out the return type by piping it to Get-Member
(for example, $results | gm
). The result is a Dictionary where the key is the name of a FieldDescription
object used in the prompt. To access the result for the first prompt in the linked example you would type: $results['String Field']
.
To access information without invoking a method, leave the parentheses off:
PS> $Host.UI.Prompt
MemberType : Method
OverloadDefinitions : {System.Collections.Generic.Dictionary[string,psobject] Pr
ompt(string caption, string message, System.Collections.Ob
jectModel.Collection[System.Management.Automation.Host.Fie
ldDescription] descriptions)}
TypeNameOfValue : System.Management.Automation.PSMethod
Value : System.Collections.Generic.Dictionary[string,psobject] Pro
mpt(string caption, string message, System.Collections.Obj
ectModel.Collection[System.Management.Automation.Host.Fiel
dDescription] descriptions)
Name : Prompt
IsInstance : True
$Host.UI.Prompt.OverloadDefinitions
will give you the definition(s) of the method. Each definition displays as <Return Type> <Method Name>(<Parameters>)
.
Well as we all know that it gets erased. But it can be known under some circumstances where the type is explicitly mentioned in the class hierarchy:
import java.lang.reflect.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.stream.Collectors;
public abstract class CaptureType<T> {
/**
* {@link java.lang.reflect.Type} object of the corresponding generic type. This method is useful to obtain every kind of information (including annotations) of the generic type.
*
* @return Type object. null if type could not be obtained (This happens in case of generic type whose information cant be obtained using Reflection). Please refer documentation of {@link com.types.CaptureType}
*/
public Type getTypeParam() {
Class<?> bottom = getClass();
Map<TypeVariable<?>, Type> reifyMap = new LinkedHashMap<>();
for (; ; ) {
Type genericSuper = bottom.getGenericSuperclass();
if (!(genericSuper instanceof Class)) {
ParameterizedType generic = (ParameterizedType) genericSuper;
Class<?> actualClaz = (Class<?>) generic.getRawType();
TypeVariable<? extends Class<?>>[] typeParameters = actualClaz.getTypeParameters();
Type[] reified = generic.getActualTypeArguments();
assert (typeParameters.length != 0);
for (int i = 0; i < typeParameters.length; i++) {
reifyMap.put(typeParameters[i], reified[i]);
}
}
if (bottom.getSuperclass().equals(CaptureType.class)) {
bottom = bottom.getSuperclass();
break;
}
bottom = bottom.getSuperclass();
}
TypeVariable<?> var = bottom.getTypeParameters()[0];
while (true) {
Type type = reifyMap.get(var);
if (type instanceof TypeVariable) {
var = (TypeVariable<?>) type;
} else {
return type;
}
}
}
/**
* Returns the raw type of the generic type.
* <p>For example in case of {@code CaptureType<String>}, it would return {@code Class<String>}</p>
* For more comprehensive examples, go through javadocs of {@link com.types.CaptureType}
*
* @return Class object
* @throws java.lang.RuntimeException If the type information cant be obtained. Refer documentation of {@link com.types.CaptureType}
* @see com.types.CaptureType
*/
public Class<T> getRawType() {
Type typeParam = getTypeParam();
if (typeParam != null)
return getClass(typeParam);
else throw new RuntimeException("Could not obtain type information");
}
/**
* Gets the {@link java.lang.Class} object of the argument type.
* <p>If the type is an {@link java.lang.reflect.ParameterizedType}, then it returns its {@link java.lang.reflect.ParameterizedType#getRawType()}</p>
*
* @param type The type
* @param <A> type of class object expected
* @return The Class<A> object of the type
* @throws java.lang.RuntimeException If the type is a {@link java.lang.reflect.TypeVariable}. In such cases, it is impossible to obtain the Class object
*/
public static <A> Class<A> getClass(Type type) {
if (type instanceof GenericArrayType) {
Type componentType = ((GenericArrayType) type).getGenericComponentType();
Class<?> componentClass = getClass(componentType);
if (componentClass != null) {
return (Class<A>) Array.newInstance(componentClass, 0).getClass();
} else throw new UnsupportedOperationException("Unknown class: " + type.getClass());
} else if (type instanceof Class) {
Class claz = (Class) type;
return claz;
} else if (type instanceof ParameterizedType) {
return getClass(((ParameterizedType) type).getRawType());
} else if (type instanceof TypeVariable) {
throw new RuntimeException("The type signature is erased. The type class cant be known by using reflection");
} else throw new UnsupportedOperationException("Unknown class: " + type.getClass());
}
/**
* This method is the preferred method of usage in case of complex generic types.
* <p>It returns {@link com.types.TypeADT} object which contains nested information of the type parameters</p>
*
* @return TypeADT object
* @throws java.lang.RuntimeException If the type information cant be obtained. Refer documentation of {@link com.types.CaptureType}
*/
public TypeADT getParamADT() {
return recursiveADT(getTypeParam());
}
private TypeADT recursiveADT(Type type) {
if (type instanceof Class) {
return new TypeADT((Class<?>) type, null);
} else if (type instanceof ParameterizedType) {
ArrayList<TypeADT> generic = new ArrayList<>();
ParameterizedType type1 = (ParameterizedType) type;
return new TypeADT((Class<?>) type1.getRawType(),
Arrays.stream(type1.getActualTypeArguments()).map(x -> recursiveADT(x)).collect(Collectors.toList()));
} else throw new UnsupportedOperationException();
}
}
public class TypeADT {
private final Class<?> reify;
private final List<TypeADT> parametrized;
TypeADT(Class<?> reify, List<TypeADT> parametrized) {
this.reify = reify;
this.parametrized = parametrized;
}
public Class<?> getRawType() {
return reify;
}
public List<TypeADT> getParameters() {
return parametrized;
}
}
And now you can do things like:
static void test1() {
CaptureType<String> t1 = new CaptureType<String>() {
};
equals(t1.getRawType(), String.class);
}
static void test2() {
CaptureType<List<String>> t1 = new CaptureType<List<String>>() {
};
equals(t1.getRawType(), List.class);
equals(t1.getParamADT().getParameters().get(0).getRawType(), String.class);
}
private static void test3() {
CaptureType<List<List<String>>> t1 = new CaptureType<List<List<String>>>() {
};
equals(t1.getParamADT().getRawType(), List.class);
equals(t1.getParamADT().getParameters().get(0).getRawType(), List.class);
}
static class Test4 extends CaptureType<List<String>> {
}
static void test4() {
Test4 test4 = new Test4();
equals(test4.getParamADT().getRawType(), List.class);
}
static class PreTest5<S> extends CaptureType<Integer> {
}
static class Test5 extends PreTest5<Integer> {
}
static void test5() {
Test5 test5 = new Test5();
equals(test5.getTypeParam(), Integer.class);
}
static class PreTest6<S> extends CaptureType<S> {
}
static class Test6 extends PreTest6<Integer> {
}
static void test6() {
Test6 test6 = new Test6();
equals(test6.getTypeParam(), Integer.class);
}
class X<T> extends CaptureType<T> {
}
class Y<A, B> extends X<B> {
}
class Z<Q> extends Y<Q, Map<Integer, List<List<List<Integer>>>>> {
}
void test7(){
Z<String> z = new Z<>();
TypeADT param = z.getParamADT();
equals(param.getRawType(), Map.class);
List<TypeADT> parameters = param.getParameters();
equals(parameters.get(0).getRawType(), Integer.class);
equals(parameters.get(1).getRawType(), List.class);
equals(parameters.get(1).getParameters().get(0).getRawType(), List.class);
equals(parameters.get(1).getParameters().get(0).getParameters().get(0).getRawType(), List.class);
equals(parameters.get(1).getParameters().get(0).getParameters().get(0).getParameters().get(0).getRawType(), Integer.class);
}
static void test8() throws IllegalAccessException, InstantiationException {
CaptureType<int[]> type = new CaptureType<int[]>() {
};
equals(type.getRawType(), int[].class);
}
static void test9(){
CaptureType<String[]> type = new CaptureType<String[]>() {
};
equals(type.getRawType(), String[].class);
}
static class SomeClass<T> extends CaptureType<T>{}
static void test10(){
SomeClass<String> claz = new SomeClass<>();
try{
claz.getRawType();
throw new RuntimeException("Shouldnt come here");
}catch (RuntimeException ex){
}
}
static void equals(Object a, Object b) {
if (!a.equals(b)) {
throw new RuntimeException("Test failed. " + a + " != " + b);
}
}
More info here. But again, it is almost impossible to retrieve for:
class SomeClass<T> extends CaptureType<T>{}
SomeClass<String> claz = new SomeClass<>();
where it gets erased.
This is how I do it.
try:
do_something()
except:
# How can I log my exception here, complete with its traceback?
import traceback
traceback.format_exc() # this will print a complete trace to stout.
A simple way to do this is by selecting the text field and using the method endEditing(true)
e.g
exampleTextField.endEditing(true)
For some Distributions, Cauchy I think, I have found that trapz will overestimate the area, and so the pdf will change depending on the number of bins you select. In which case I do
[N,h]=hist(q_f./theta,30000); % there Is a large range but most of the bins will be empty
plot(h,N/(sum(N)*mean(diff(h))),'+r')
You use new
to perform dynamic allocation. It returns a pointer that points to the dynamically allocated object.
You have no reason to use new
, since A
is an automatic variable. You can simply initialise A
using its constructor:
vector<vector<int> > A(dimension, vector<int>(dimension));
You should use sum
:
Total = df['MyColumn'].sum()
print (Total)
319
Then you use loc
with Series
, in that case the index should be set as the same as the specific column you need to sum:
df.loc['Total'] = pd.Series(df['MyColumn'].sum(), index = ['MyColumn'])
print (df)
X MyColumn Y Z
0 A 84.0 13.0 69.0
1 B 76.0 77.0 127.0
2 C 28.0 69.0 16.0
3 D 28.0 28.0 31.0
4 E 19.0 20.0 85.0
5 F 84.0 193.0 70.0
Total NaN 319.0 NaN NaN
because if you pass scalar, the values of all rows will be filled:
df.loc['Total'] = df['MyColumn'].sum()
print (df)
X MyColumn Y Z
0 A 84 13.0 69.0
1 B 76 77.0 127.0
2 C 28 69.0 16.0
3 D 28 28.0 31.0
4 E 19 20.0 85.0
5 F 84 193.0 70.0
Total 319 319 319.0 319.0
Two other solutions are with at
, and ix
see the applications below:
df.at['Total', 'MyColumn'] = df['MyColumn'].sum()
print (df)
X MyColumn Y Z
0 A 84.0 13.0 69.0
1 B 76.0 77.0 127.0
2 C 28.0 69.0 16.0
3 D 28.0 28.0 31.0
4 E 19.0 20.0 85.0
5 F 84.0 193.0 70.0
Total NaN 319.0 NaN NaN
df.ix['Total', 'MyColumn'] = df['MyColumn'].sum()
print (df)
X MyColumn Y Z
0 A 84.0 13.0 69.0
1 B 76.0 77.0 127.0
2 C 28.0 69.0 16.0
3 D 28.0 28.0 31.0
4 E 19.0 20.0 85.0
5 F 84.0 193.0 70.0
Total NaN 319.0 NaN NaN
Note: Since Pandas v0.20, ix
has been deprecated. Use loc
or iloc
instead.
I am writing application to API level 21, I tried all the above but didn't worked, Finally i deleted Values-v23 from appcompat_v7.It worked.
Once you set the app.config file, visual studio will generate a copy in the bin folder named App.exe.config. Copy this to the application directory during deployment. Sounds obvious but surprisingly a lot of people miss this step. WinForms developers are not used to config files :).
One problem is that you are using count
to refer both to the position in the word that you are checking, and the number of char
you have seen, and you are using char
to refer both to the input character you are checking, and the current character in the string. Use separate variables instead.
Also, move the return
statement outside the loop; otherwise you will always return after checking the first character.
Finally, you only need one loop to iterate over the string. Get rid of the outer while
loop and you will not need to track the position in the string.
Taking these suggestions, your code would look like this:
def count_letters(word, char):
count = 0
for c in word:
if char == c:
count += 1
return count
To answer your question posted in the title of this topic...
Step 1--> Right Click on Java Project, Select the option "Properties"
Step 2--> Select "Java Build Path" from the left side menu, make sure you are on "Source" tab, click "Add Folder"
Step 3--> Click the option "Create New Folder..." available at the bottom of the window
Step 4--> Enter the name of the new folder as "resources" and then click "Finish"
Step 5--> Now you'll be able to see the newly created folder "resources" under your java project, Click "Ok", again Click "Ok"
Final Step --> Now you should be able to see the new folder "resources" under your java project
You should use get_fields()
:
[f.name for f in MyModel._meta.get_fields()]
The get_all_field_names()
method is deprecated starting from Django
1.8 and will be removed in 1.10.
The documentation page linked above provides a fully backwards-compatible implementation of get_all_field_names()
, but for most purposes the previous example should work just fine.
model._meta.get_all_field_names()
That should do the trick.
That requires an actual model instance. If all you have is a subclass of django.db.models.Model
, then you should call myproject.myapp.models.MyModel._meta.get_all_field_names()
Below are the answers to this question for all the versions of Angular 2 RC versions released till date:
RC4 and RC3 :
For applying class to link or ancestor of link :
<li routerLinkActive="active"><a [routerLink]="['/home']">Home</a></li>
/home should be the URL and not the name of route since name property no longer exists on Route Object as of Router v3.
More about routerLinkActive directive at this link.
For applying class to any div based on current route :
e.g
<nav [class.transparent]="router.url==('/home')">
</nav>
RC2 and RC1:
Use combination of router.isRouteActive and class.*. e.g to apply active class based on Home Route.
Name and url can both be passed into router.generate.
<li [class.active]="router.isRouteActive(router.generate(['Home']))">
<a [routerLink]="['Home']" >Home</a>
</li>
If you run into this issue and you have Visual Studio, you can do the following:
Right-click on your branch and select View History
:
Right-click on commit you want to go back to. And Revert or Reset as needed.
The following code should work:
$('#reportrange').daterangepicker({
startDate: start,
endDate: end,
ranges: {
'Hoy': [moment(), moment()],
'Ayer': [moment().subtract(1, 'days'), moment().subtract(1, 'days')],
'Ultimos 7 dias': [moment().subtract(6, 'days'), moment()],
'Ultimos 30 dias': [moment().subtract(29, 'days'), moment()],
'Mes actual': [moment().startOf('month'), moment().endOf('month')],
'Ultimo mes': [moment().subtract(1, 'month').startOf('month'), moment().subtract(1, 'month').endOf('month')],
'Enero': [moment().month(0).startOf('month') , moment().month(0).endOf('month')],
'Febrero': [moment().month(1).startOf('month') , moment().month(1).endOf('month')],
'Marzo': [moment().month(2).startOf('month') , moment().month(2).endOf('month')],
'Abril': [moment().month(3).startOf('month') , moment().month(3).endOf('month')],
'Mayo': [moment().month(4).startOf('month') , moment().month(4).endOf('month')],
'Junio': [moment().month(5).startOf('month') , moment().month(5).endOf('month')],
'Julio': [moment().month(6).startOf('month') , moment().month(6).endOf('month')],
'Agosto': [moment().month(7).startOf('month') , moment().month(7).endOf('month')],
'Septiembre': [moment().month(8).startOf('month') , moment().month(8).endOf('month')],
'Octubre': [moment().month(9).startOf('month') , moment().month(9).endOf('month')],
'Noviembre': [moment().month(10).startOf('month') , moment().month(10).endOf('month')],
'Diciembre': [moment().month(11).startOf('month') , moment().month(11).endOf('month')]
}
}, cb);
I suspect there are many answers like this on SO but here you go:
if ( typeof pagetype !== 'undefined' && pagetype == 'textpage' ) {
...
}
this way i follow and its work for me fine, may it will works for you,
<iframe class="img-responsive" src="{{pdfLoc| trustThisUrl }}" ng-style="{
height: iframeHeight * 0.75 + 'px'
}" style="width:100%"></iframe>
here trustThisUrl is just filter,
angular.module("app").filter('trustThisUrl', ["$sce", function ($sce) {
return function (val) {
return $sce.trustAsResourceUrl(val);
};
}]);
Guys I'm figuratively shocked! Sure all answers are somewhat old, but no one did even mention the stability in sorting! So bear with me I'll try my best to answer the question itself and go into details here. So I'm going to apologize now it will be a lot to read.
Since it is 2018 I will only use ES6, the Polyfills are all available at the MDN docs, which I will link at the given part.
Answer to the question:
If your keys are only numbers then you can safely use Object.keys()
together with Array.prototype.reduce()
to return the sorted object:
// Only numbers to show it will be sorted.
const testObj = {
'2000': 'Articel1',
'4000': 'Articel2',
'1000': 'Articel3',
'3000': 'Articel4',
};
// I'll explain what reduces does after the answer.
console.log(Object.keys(testObj).reduce((accumulator, currentValue) => {
accumulator[currentValue] = testObj[currentValue];
return accumulator;
}, {}));
/**
* expected output:
* {
* '1000': 'Articel3',
* '2000': 'Articel1',
* '3000': 'Articel4',
* '4000': 'Articel2'
* }
*/
// if needed here is the one liner:
console.log(Object.keys(testObj).reduce((a, c) => (a[c] = testObj[c], a), {}));
However if you are working with strings I highly recommend chaining Array.prototype.sort()
into all of this:
// String example
const testObj = {
'a1d78eg8fdg387fg38': 'Articel1',
'z12989dh89h31d9h39': 'Articel2',
'f1203391dhj32189h2': 'Articel3',
'b10939hd83f9032003': 'Articel4',
};
// Chained sort into all of this.
console.log(Object.keys(testObj).sort().reduce((accumulator, currentValue) => {
accumulator[currentValue] = testObj[currentValue];
return accumulator;
}, {}));
/**
* expected output:
* {
* a1d78eg8fdg387fg38: 'Articel1',
* b10939hd83f9032003: 'Articel4',
* f1203391dhj32189h2: 'Articel3',
* z12989dh89h31d9h39: 'Articel2'
* }
*/
// again the one liner:
console.log(Object.keys(testObj).sort().reduce((a, c) => (a[c] = testObj[c], a), {}));
If someone is wondering what reduce does:
// Will return Keys of object as an array (sorted if only numbers or single strings like a,b,c).
Object.keys(testObj)
// Chaining reduce to the returned array from Object.keys().
// Array.prototype.reduce() takes one callback
// (and another param look at the last line) and passes 4 arguments to it:
// accumulator, currentValue, currentIndex and array
.reduce((accumulator, currentValue) => {
// setting the accumulator (sorted new object) with the actual property from old (unsorted) object.
accumulator[currentValue] = testObj[currentValue];
// returning the newly sorted object for the next element in array.
return accumulator;
// the empty object {} ist the initial value for Array.prototype.reduce().
}, {});
If needed here is the explanation for the one liner:
Object.keys(testObj).reduce(
// Arrow function as callback parameter.
(a, c) =>
// parenthesis return! so we can safe the return and write only (..., a);
(a[c] = testObj[c], a)
// initial value for reduce.
,{}
);
Why Sorting is a bit complicated:
In short Object.keys()
will return an array with the same order as we get with a normal loop:
const object1 = {
a: 'somestring',
b: 42,
c: false
};
console.log(Object.keys(object1));
// expected output: Array ["a", "b", "c"]
Object.keys() returns an array whose elements are strings corresponding to the enumerable properties found directly upon object. The ordering of the properties is the same as that given by looping over the properties of the object manually.
Sidenote - you can use Object.keys()
on arrays as well, keep in mind the index will be returned:
// simple array
const arr = ['a', 'b', 'c'];
console.log(Object.keys(arr)); // console: ['0', '1', '2']
But it is not as easy as shown by those examples, real world objects may contain numbers and alphabetical characters or even symbols (please don't do it).
Here is an example with all of them in one object:
// This is just to show what happens, please don't use symbols in keys.
const testObj = {
'1asc': '4444',
1000: 'a',
b: '1231',
'#01010101010': 'asd',
2: 'c'
};
console.log(Object.keys(testObj));
// output: [ '2', '1000', '1asc', 'b', '#01010101010' ]
Now if we use Array.prototype.sort()
on the array above the output changes:
console.log(Object.keys(testObj).sort());
// output: [ '#01010101010', '1000', '1asc', '2', 'b' ]
Here is a quote from the docs:
The sort() method sorts the elements of an array in place and returns the array. The sort is not necessarily stable. The default sort order is according to string Unicode code points.
The time and space complexity of the sort cannot be guaranteed as it is implementation dependent.
You have to make sure that one of them returns the desired output for you. In reallife examples people tend to mix up things expecially if you use different information inputs like APIs and Databases together.
So what's the big deal?
Well there are two articles which every programmer should understand:
In computer science, an in-place algorithm is an algorithm which transforms input using no auxiliary data structure. However a small amount of extra storage space is allowed for auxiliary variables. The input is usually overwritten by the output as the algorithm executes. In-place algorithm updates input sequence only through replacement or swapping of elements. An algorithm which is not in-place is sometimes called not-in-place or out-of-place.
So basically our old array will be overwritten! This is important if you want to keep the old array for other reasons. So keep this in mind.
Stable sort algorithms sort identical elements in the same order that they appear in the input. When sorting some kinds of data, only part of the data is examined when determining the sort order. For example, in the card sorting example to the right, the cards are being sorted by their rank, and their suit is being ignored. This allows the possibility of multiple different correctly sorted versions of the original list. Stable sorting algorithms choose one of these, according to the following rule: if two items compare as equal, like the two 5 cards, then their relative order will be preserved, so that if one came before the other in the input, it will also come before the other in the output.
An example of stable sort on playing cards. When the cards are sorted by rank with a stable sort, the two 5s must remain in the same order in the sorted output that they were originally in. When they are sorted with a non-stable sort, the 5s may end up in the opposite order in the sorted output.
This shows that the sorting is right but it changed. So in the real world even if the sorting is correct we have to make sure that we get what we expect! This is super important keep this in mind as well. For more JavaScript examples look into the Array.prototype.sort() - docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort
If you put your JavaScript code in the PHP file, you can, but not otherwise. For example:
page.php (this will work)
function jst()
{
var i = 0;
i = <?php echo 35; ?>;
alert(i);
}
page.js (this won't work)
function jst()
{
var i = 0;
i = <?php echo 35; ?>
alert(i);
}
For those who are having trouble with fatal error: ESP8266WiFi.h: No such file or directory
, you can install the package manually.
You may still need to have the http://arduino.esp8266.com/stable/package_esp8266com_index.json package installed beforehand, however.
Edit: That wasn't the full issue, you need to make sure you have the correct ESP8266 Board selected before compiling.
Hope this helps others.
What you could do is something like this (pseudocode):
<container table>
<tr>
<td>
<"300px" table>
<td>
<fixed layout table>
Basically, split up the table into two tables and have it contained by another table.
This should be your answer
<div align="center">
<img src="@Url.Content("~/images/image3.bmp")" alt="" align="right" style="float:right"/>
<img src="@Url.Content("~/images/image1.bmp")" alt="" align="left" style="float:left" />
<div id="content" align="center">
<img src="@Url.Content("~/images/image2.bmp")" alt="" align="center" />
</div>
</div>
As said in the comments, the problem lies in your script. Actually, there are 2 problems:
None
somewhere. Maybe due to the defaultdict ?show()
after each subplot. show()
should be called once at the end of your script. The alternative is to use interactive mode, look for ion
in matplotlib's documentation.If a class is declared as static then the variables and methods need to be declared as static.
A class can be declared static, indicating that it contains only static members. It is not possible to create instances of a static class using the new keyword. Static classes are loaded automatically by the .NET Framework common language runtime (CLR) when the program or namespace containing the class is loaded.
Use a static class to contain methods that are not associated with a particular object. For example, it is a common requirement to create a set of methods that do not act on instance data and are not associated to a specific object in your code. You could use a static class to hold those methods.
->The main features of a static class are:
Example
static class CollegeRegistration
{
//All static member variables
static int nCollegeId; //College Id will be same for all the students studying
static string sCollegeName; //Name will be same
static string sColegeAddress; //Address of the college will also same
//Member functions
public static int GetCollegeId()
{
nCollegeId = 100;
return (nCollegeID);
}
//similarly implementation of others also.
} //class end
public class student
{
int nRollNo;
string sName;
public GetRollNo()
{
nRollNo += 1;
return (nRollNo);
}
//similarly ....
public static void Main()
{
//Not required.
//CollegeRegistration objCollReg= new CollegeRegistration();
//<ClassName>.<MethodName>
int cid= CollegeRegistration.GetCollegeId();
string sname= CollegeRegistration.GetCollegeName();
} //Main end
}
I am doing like this in MSSQL
Getting Monthly Data:
SELECT YEAR(DATE_CREATED) [Year], MONTH(DATE_CREATED) [Month],
DATENAME(MONTH,DATE_CREATED) [Month Name], SUM(Num_of_Pictures) [Pictures Count]
FROM pictures_table
GROUP BY YEAR(DATE_CREATED), MONTH(DATE_CREATED),
DATENAME(MONTH, DATE_CREATED)
ORDER BY 1,2
Getting Monthly Data using PIVOT:
SELECT *
FROM (SELECT YEAR(DATE_CREATED) [Year],
DATENAME(MONTH, DATE_CREATED) [Month],
SUM(Num_of_Pictures) [Pictures Count]
FROM pictures_table
GROUP BY YEAR(DATE_CREATED),
DATENAME(MONTH, DATE_CREATED)) AS MontlySalesData
PIVOT( SUM([Pictures Count])
FOR Month IN ([January],[February],[March],[April],[May],
[June],[July],[August],[September],[October],[November],
[December])) AS MNamePivot
according to the latest version of MySQL (phpMyAdmin), add a correct INDEX while choosing primary key. for example: id[int] INDEX 0 ,if id is your primary key and at the first index. Or,
For your problem try this one
CREATE TABLE `table`.`users` (
`id` INT(11) NOT NULL AUTO_INCREMENT,
`username` VARCHAR(50) NOT NULL,
`password` VARCHAR(50) NOT NULL,
`dir` VARCHAR(100) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE = MyISAM;
My version for a directive that uses jqplot to plot the data once it becomes available:
app.directive('lineChart', function() {
$.jqplot.config.enablePlugins = true;
return function(scope, element, attrs) {
scope.$watch(attrs.lineChart, function(newValue, oldValue) {
if (newValue) {
// alert(scope.$eval(attrs.lineChart));
var plot = $.jqplot(element[0].id, scope.$eval(attrs.lineChart), scope.$eval(attrs.options));
}
});
}
});
A ResultSetClosedException
could be thrown for two reasons.
1.) You have opened another connection to the database without closing all other connections.
2.) Your ResultSet may be returning no values. So when you try to access data from the ResultSet java will throw a ResultSetClosedException
.
How many thousands of users?
I've run some TCP/IP client/server connection tests in the past on Windows 2003 Server and managed more than 70,000 connections on a reasonably low spec VM. (see here for details: http://www.lenholgate.com/blog/2005/10/the-64000-connection-question.html). I would be extremely surprised if Windows 2008 Server is limited to less than 2003 Server and, IMHO, the posting that Cloud links to is too vague to be much use. This kind of question comes up a lot, I blogged about why I don't really think that it's something that you should actually worry about here: http://www.serverframework.com/asynchronousevents/2010/12/one-million-tcp-connections.html.
Personally I'd test it and see. Even if there is no inherent limit in the Windows 2008 Server version that you intend to use there will still be practical limits based on memory, processor speed and server design.
If you want to run some 'generic' tests you can use my multi-client connection test and the associated echo server. Detailed here: http://www.lenholgate.com/blog/2005/11/windows-tcpip-server-performance.html and here: http://www.lenholgate.com/blog/2005/11/simple-echo-servers.html. These are what I used to run my own tests for my server framework and these are what allowed me to create 70,000 active connections on a Windows 2003 Server VM with 760MB of memory.
Edited to add details from the comment below...
If you're already thinking of multiple servers I'd take the following approach.
Use the free tools that I link
to and prove to yourself that you
can create a reasonable number of
connections onto your target OS
(beware of the Windows limits on
dynamic ports which may cause your
client connections to fail, search
for MAX_USER_PORT
).
during development regularly test your actual server with test clients that can create connections and actually 'do something' on the server. This will help to prevent you building the server in ways that restrict its scalability. See here: http://www.serverframework.com/asynchronousevents/2010/10/how-to-support-10000-or-more-concurrent-tcp-connections-part-2-perf-tests-from-day-0.html
Executing git config --system core.longpaths true
thrown an error to me:
"error: could not lock config file C:\Program Files (x86)\Git\mingw32/etc/gitconfig: Permission denied"
Fixed with executing the command at the global level:
git config --global core.longpaths true
There should be one - and preferably only one - obvious way to do it.
Therefore list(dictionary.values())
is the one way.
[*L]
vs. [].extend(L)
vs. list(L)
small_ds = {x: str(x+42) for x in range(10)}
small_df = {x: float(x+42) for x in range(10)}
print('Small Dict(str)')
%timeit [*small_ds.values()]
%timeit [].extend(small_ds.values())
%timeit list(small_ds.values())
print('Small Dict(float)')
%timeit [*small_df.values()]
%timeit [].extend(small_df.values())
%timeit list(small_df.values())
big_ds = {x: str(x+42) for x in range(1000000)}
big_df = {x: float(x+42) for x in range(1000000)}
print('Big Dict(str)')
%timeit [*big_ds.values()]
%timeit [].extend(big_ds.values())
%timeit list(big_ds.values())
print('Big Dict(float)')
%timeit [*big_df.values()]
%timeit [].extend(big_df.values())
%timeit list(big_df.values())
Small Dict(str)
256 ns ± 3.37 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
338 ns ± 0.807 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
336 ns ± 1.9 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
Small Dict(float)
268 ns ± 0.297 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
343 ns ± 15.2 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
336 ns ± 0.68 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
Big Dict(str)
17.5 ms ± 142 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
16.5 ms ± 338 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
16.2 ms ± 19.7 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Big Dict(float)
13.2 ms ± 41 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
13.1 ms ± 919 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
12.8 ms ± 578 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Done on Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz.
# Name Version Build
ipython 7.5.0 py37h24bf2e0_0
* operator
is quickerlist()
is maybe slightly quickerThere are at least these two issues I have observed for this problem: 1) It could be either because your sender username or password might not be correct 2) Or it could be as answered by Avinash above, the security condition on the account. Once you try SendMail using SMTP, you normally get a notification in to your account that it may be an unauthorized attempt to access your account, if not user can follow the link to turn the settings to lessSecureApp. Once this is done and smtp SendMail is tried again, it works.
Change function file_get_content()
in your code to file_get_contents()
. You are missing 's' at the end of function name. That is why it is giving undefined function error.
Remove last unnecessary comma after $image
filed in line
"INSERT INTO content VALUES ('','','','','','','','','','$image_name','$image',)
You can use the get() on each dict. Make sure that you have added the None check for each access.
You can also use the Number
constructor/function (no need for a radix and usable for both integers and floats):
Number('09'); /=> 9
Number('09.0987'); /=> 9.0987
Alternatively like Andy E said in the comments you can use +
for conversion
+'09'; /=> 9
+'09.0987'; /=> 9.0987
You can try htmlspecialchars_decode($string)
. It works for me.
http://www.w3schools.com/php/func_string_htmlspecialchars_decode.asp
Let me explain when to use FIND_IN_SET and When to use IN.
Let's take table A which has columns named "aid","aname". Let's take table B which has columns named "bid","bname","aids".
Now there are dummy values in Table A and Table B as below.
aid aname
1 Apple
2 Banana
3 Mango
bid bname aids
1 Apple 1,2
2 Banana 2,1
3 Mango 3,1,2
enter code here
Case1: if you want to get those records from table b which has 1 value present in aids columns then you have to use FIND_IN_SET.
Query: select * from A JOIN B ON FIND_IN_SET(A.aid,b.aids) where A.aid = 1 ;
Case2: if you want to get those records from table a which has 1 OR 2 OR 3 value present in aid columns then you have to use IN.
Query: select * from A JOIN B ON A.aid IN (b.aids);
Now here upto you that what you needs through mysql query.
Use a Queue
Queue<String> qe=new LinkedList<String>();
qe.add("a");
qe.add("b");
qe.add("c");
qe.add("d");
System.out.println(qe.poll()); //returns a
System.out.println(qe.poll()); //returns b
System.out.println(qe.poll()); //returns c
System.out.println(qe.poll()); //returns d
There's five simple methods of a Queue
element() -- Retrieves, but does not remove, the head of this queue.
offer(E o) -- Inserts the specified element into this queue, if
possible.
peek() -- Retrieves, but does not remove, the head of this queue, returning null if this queue is empty.
poll() -- Retrieves and removes the head of this queue, or null if this queue is empty.
I played a bit with Rupy. It's a pretty neat, open source (GPL) Java application and weighs less than 60KB. Give it a try!
It is just letting you know that the object you are printing is not a string, rather a byte object as a byte literal. People explain this in incomplete ways, so here is my take.
Consider creating a byte object by typing a byte literal (literally defining a byte object without actually using a byte object e.g. by typing b'') and converting it into a string object encoded in utf-8. (Note that converting here means decoding)
byte_object= b"test" # byte object by literally typing characters
print(byte_object) # Prints b'test'
print(byte_object.decode('utf8')) # Prints "test" without quotations
You see that we simply apply the .decode(utf8)
function.
https://docs.python.org/3.3/library/stdtypes.html#bytes
https://docs.python.org/3.3/reference/lexical_analysis.html#string-and-bytes-literals
stringliteral ::= [stringprefix](shortstring | longstring)
stringprefix ::= "r" | "u" | "R" | "U"
shortstring ::= "'" shortstringitem* "'" | '"' shortstringitem* '"'
longstring ::= "'''" longstringitem* "'''" | '"""' longstringitem* '"""'
shortstringitem ::= shortstringchar | stringescapeseq
longstringitem ::= longstringchar | stringescapeseq
shortstringchar ::= <any source character except "\" or newline or the quote>
longstringchar ::= <any source character except "\">
stringescapeseq ::= "\" <any source character>
bytesliteral ::= bytesprefix(shortbytes | longbytes)
bytesprefix ::= "b" | "B" | "br" | "Br" | "bR" | "BR" | "rb" | "rB" | "Rb" | "RB"
shortbytes ::= "'" shortbytesitem* "'" | '"' shortbytesitem* '"'
longbytes ::= "'''" longbytesitem* "'''" | '"""' longbytesitem* '"""'
shortbytesitem ::= shortbyteschar | bytesescapeseq
longbytesitem ::= longbyteschar | bytesescapeseq
shortbyteschar ::= <any ASCII character except "\" or newline or the quote>
longbyteschar ::= <any ASCII character except "\">
bytesescapeseq ::= "\" <any ASCII character>
Building on Alpar's answer, here's a more generalised way to split a single list of items into multiple containers (rows, columns, buckets, whatever):
<div class="row" ng-repeat="row in [0,1,2]">
<div class="col" ng-repeat="item in $ctrl.items" ng-if="$index % 3 == row">
<span>{{item.name}}</span>
</div>
</div>
for a list of 10 items, generates:
<div class="row">
<div class="col"><span>Item 1</span></div>
<div class="col"><span>Item 4</span></div>
<div class="col"><span>Item 7</span></div>
<div class="col"><span>Item 10</span></div>
</div>
<div class="row">
<div class="col"><span>Item 2</span></div>
<div class="col"><span>Item 5</span></div>
<div class="col"><span>Item 8</span></div>
</div>
<div class="row">
<div class="col"><span>Item 3</span></div>
<div class="col"><span>Item 6</span></div>
<div class="col"><span>Item 9</span></div>
</div>
The number of containers can be quickly coded into a controller function:
JS (ES6)
$scope.rowList = function(rows) {
return Array(rows).fill().map((x,i)=>i);
}
$scope.rows = 2;
HTML
<div class="row" ng-repeat="row in rowList(rows)">
<div ng-repeat="item in $ctrl.items" ng-if="$index % rows == row">
...
This approach avoids duplicating the item markup (<span>{{item.name}}</span>
in this case) in the source template - not a huge win for a simple span, but for a more complex DOM structure (which I had) this helps keep the template DRY.
The argument to split is a regular expression. "." matches anything so your delimiter to split on is anything.
Set all radio buttons back to the default:
$("input[name='correctAnswer']").checkboxradio( "refresh" );
If using the new AdSense code, you can do an easy check, with out resorting to content or css checks.
Place your ads as normal in your markup:
<ins class="adsbygoogle" style="display: block;"
data-ad-client="ca-pub-######"
data-ad-slot="#######"
data-ad-format="auto"></ins>
<script>(adsbygoogle = window.adsbygoogle || []).push({});</script>
Then you call the adsense code at the bottom of your page (note do not use the "async"
flag when calling the adsbygoogle.js
script):
<script src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
Then add this little snippit of code below that:
<script>
if (!adsbygoogle.loaded) {
// do something to alert the user
}
</script>
AdSense always creates/sets the flag adsbygoogle.loaded
to true
when the ads are loaded, You could place the check in a setTimeout function to delay the check by a few seconds.
Much harder to do that I'd envisaged. I found an version here by keepitcool that avoids the dreaded Sendkeys
Run this from a regular module.
Updated as initial post missed the Private Function Declarations - poor copy and paste job by yours truly
Private Declare Function GetWindow _
Lib "user32" ( _
ByVal hWnd As Long, _
ByVal wCmd As Long) As Long
Private Declare Function FindWindow _
Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Private Declare Function FindWindowEx _
Lib "user32" Alias "FindWindowExA" _
(ByVal hWnd1 As Long, ByVal hWnd2 As Long, _
ByVal lpsz1 As String, _
ByVal lpsz2 As String) As Long
Private Declare Function GetKeyboardState _
Lib "user32" (pbKeyState As Byte) As Long
Private Declare Function SetKeyboardState _
Lib "user32" (lppbKeyState As Byte) As Long
Private Declare Function PostMessage _
Lib "user32" Alias "PostMessageA" ( _
ByVal hWnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, ByVal lParam As Long _
) As Long
Private Const WM_KEYDOWN As Long = &H100
Private Const KEYSTATE_KEYDOWN As Long = &H80
Private savState(0 To 255) As Byte
Sub ClearImmediateWindow()
'Adapted by keepITcool
'Original from Jamie Collins fka "OneDayWhen"
'http://www.dicks-blog.com/excel/2004/06/clear_the_immed.html
Dim hPane As Long
Dim tmpState(0 To 255) As Byte
hPane = GetImmHandle
If hPane = 0 Then MsgBox "Immediate Window not found."
If hPane < 1 Then Exit Sub
'Save the keyboardstate
GetKeyboardState savState(0)
'Sink the CTRL (note we work with the empty tmpState)
tmpState(vbKeyControl) = KEYSTATE_KEYDOWN
SetKeyboardState tmpState(0)
'Send CTRL+End
PostMessage hPane, WM_KEYDOWN, vbKeyEnd, 0&
'Sink the SHIFT
tmpState(vbKeyShift) = KEYSTATE_KEYDOWN
SetKeyboardState tmpState(0)
'Send CTRLSHIFT+Home and CTRLSHIFT+BackSpace
PostMessage hPane, WM_KEYDOWN, vbKeyHome, 0&
PostMessage hPane, WM_KEYDOWN, vbKeyBack, 0&
'Schedule cleanup code to run
Application.OnTime Now + TimeSerial(0, 0, 0), "DoCleanUp"
End Sub
Sub DoCleanUp()
' Restore keyboard state
SetKeyboardState savState(0)
End Sub
Function GetImmHandle() As Long
'This function finds the Immediate Pane and returns a handle.
'Docked or MDI, Desked or Floating, Visible or Hidden
Dim oWnd As Object, bDock As Boolean, bShow As Boolean
Dim sMain$, sDock$, sPane$
Dim lMain&, lDock&, lPane&
On Error Resume Next
sMain = Application.VBE.MainWindow.Caption
If Err <> 0 Then
MsgBox "No Access to Visual Basic Project"
GetImmHandle = -1
Exit Function
' Excel2003: Registry Editor (Regedit.exe)
' HKLM\SOFTWARE\Microsoft\Office\11.0\Excel\Security
' Change or add a DWORD called 'AccessVBOM', set to 1
' Excel2002: Tools/Macro/Security
' Tab 'Trusted Sources', Check 'Trust access..'
End If
For Each oWnd In Application.VBE.Windows
If oWnd.Type = 5 Then
bShow = oWnd.Visible
sPane = oWnd.Caption
If Not oWnd.LinkedWindowFrame Is Nothing Then
bDock = True
sDock = oWnd.LinkedWindowFrame.Caption
End If
Exit For
End If
Next
lMain = FindWindow("wndclass_desked_gsk", sMain)
If bDock Then
'Docked within the VBE
lPane = FindWindowEx(lMain, 0&, "VbaWindow", sPane)
If lPane = 0 Then
'Floating Pane.. which MAY have it's own frame
lDock = FindWindow("VbFloatingPalette", vbNullString)
lPane = FindWindowEx(lDock, 0&, "VbaWindow", sPane)
While lDock > 0 And lPane = 0
lDock = GetWindow(lDock, 2) 'GW_HWNDNEXT = 2
lPane = FindWindowEx(lDock, 0&, "VbaWindow", sPane)
Wend
End If
ElseIf bShow Then
lDock = FindWindowEx(lMain, 0&, "MDIClient", _
vbNullString)
lDock = FindWindowEx(lDock, 0&, "DockingView", _
vbNullString)
lPane = FindWindowEx(lDock, 0&, "VbaWindow", sPane)
Else
lPane = FindWindowEx(lMain, 0&, "VbaWindow", sPane)
End If
GetImmHandle = lPane
End Function
Based on a web search, I just found a Chrome plugin called SVG Export.
Available in the Chrome web store: https://chrome.google.com/webstore/detail/svg-export/naeaaedieihlkmdajjefioajbbdbdjgp
The home page is https://svgexport.io
Example : we want to represent an 2D array of SIZE_X and SIZE_Y size. That means that we will have MAXY consecutive rows of MAXX size. Hence the set function is
void set_array( int x, int y, int val ) { array[ x * SIZE_Y + y ] = val; }
The get would be:
int get_array( int x, int y ) { return array[ x * SIZE_Y + y ]; }
My answer is intended for comment though but since i havent got enough reputation, i think it will still be relevant as an answer and help some one.
I find datatable
in library DT
robust to handle rownames
, and columnames
Library DT
datatable(df, rownames = FALSE) # no row names
refer to https://rstudio.github.io/DT/ for usage scenarios
See VonC's answer above - I needed an extra step:
$ git log -1
- note the SHA-1 of latest commit
$ git checkout master
- reset your branch head to your previously detached commit
$ git reset --hard <commit-id>
I did this, but when I then tried to git push remoterepo master
, it said
"error: failed to push some refs. To prevent you from losing history, non-fast-forward updates were rejected, Merge the remote changes (e.g. 'git pull') before pushing again."
So I did 'git pull remoterepo master', and it found a conflict. I did git reset --hard <commit-id>
again, copied the conflicted files to a backup folder, did git pull remoterepo master
again, copied the conflicted files back into my project, did git commit
, then git push remoterepo master
, and this time it worked.
Git stopped saying 'everything is up to date' - and it stopped complaining about 'fast forwards'.
As per Android API 28 and above you need to do the following to turn on the screen
setShowWhenLocked(true);
setTurnScreenOn(true);
KeyguardManager keyguardManager = (KeyguardManager)
getSystemService(Context.KEYGUARD_SERVICE);
keyguardManager.requestDismissKeyguard(this, null);
Well, actually I'll have to say David is right with his solution, but there are some topics disturbing me:
ViewModel
, and include the Model as member in the ViewModel
, then you effectively sent your model to the View => this is BADSo how can you create a better coupling?
I would use a tool like AutoMapper
or ValueInjecter to map between ViewModel
and Model.
AutoMapper
does seem to have the better syntax and feel to it, but the current version lacks a
very severe topic: It is not able to perform the mapping from ViewModel
to Model (under certain circumstances like flattening, etc., but this is off topic)
So at present I prefer to use ValueInjecter
.
So you create a ViewModel
with the fields you need in the view.
You add the SelectList items you need as lookups.
And you add them as SelectLists already. So you can query from a LINQ enabled sourc, select the ID and text field and store it as a selectlist:
You gain that you do not have to create a new type (dictionary) as lookup and you just move the new SelectList
from the view to the controller.
// StaffTypes is an IEnumerable<StaffType> from dbContext
// viewModel is the viewModel initialized to copy content of Model Employee
// viewModel.StaffTypes is of type SelectList
viewModel.StaffTypes =
new SelectList(
StaffTypes.OrderBy( item => item.Name )
"StaffTypeID",
"Type",
viewModel.StaffTypeID
);
In the view you just have to call
@Html.DropDownListFor( model => mode.StaffTypeID, model.StaffTypes )
Back in the post element of your method in the controller you have to take a parameter of the type of your ViewModel
. You then check for validation.
If the validation fails, you have to remember to re-populate the viewModel.StaffTypes
SelectList, because this item will be null on entering the post function.
So I tend to have those population things separated into a function.
You just call back return new View(viewModel)
if anything is wrong.
Validation errors found by MVC3 will automatically be shown in the view.
If you have your own validation code you can add validation errors by specifying which field they belong to. Check documentation on ModelState
to get info on that.
If the viewModel
is valid you have to perform the next step:
If it is a create of a new item, you have to populate a model from the viewModel
(best suited is ValueInjecter
). Then you can add it to the EF collection of that type and commit changes.
If you have an update, you get the current db item first into a model. Then you can copy the values from the viewModel
back to the model (again using ValueInjecter
gets you do that very quick).
After that you can SaveChanges
and are done.
Feel free to ask if anything is unclear.
I wish #pragma once
(or something like it) had been in the standard. Include guards aren't a real big deal (but they do seem to be a little difficult to explain to people learning the language), but it seems like a minor annoyance that could have been avoided.
In fact, since 99.98% of the time, the #pragma once
behavior is the desired behavior, it would have been nice if preventing multiple inclusion of a header was automatically handled by the compiler, with a #pragma
or something to allow double including.
But we have what we have (except that you might not have #pragma once
).
Mathias Lin code working beautifully. However, you might want to consider changing this part inside drawPath method:
if (lngLat.length >= 2 && gp1.getLatitudeE6() > 0 && gp1.getLongitudeE6() > 0
&& gp2.getLatitudeE6() > 0 && gp2.getLongitudeE6() > 0) {
GeoPoint can be less than zero as well, I switch mine to:
if (lngLat.length >= 2 && gp1.getLatitudeE6() != 0 && gp1.getLongitudeE6() != 0
&& gp2.getLatitudeE6() != 0 && gp2.getLongitudeE6() != 0) {
Thank you :D
not really eleganter, but a bit shorter would be
function to_tuple(x):
y = 60*60*1000
h = x/y
m = (x-(h*y))/(y/60)
s = (x-(h*y)-(m*(y/60)))/1000
mi = x-(h*y)-(m*(y/60))-(s*1000)
return (h,m,s,mi)
Found the solution:
UltraPictureBox1.Image = _
My.Resources.ResourceManager.GetObject(object_name_as_string)
Or you could use the known solution to this problem and use SSL. Self-signed certs are free and its a personal project right?
Instead of injecting ElementRef
and using querySelector
or similar from there, a declarative way can be used instead to access elements in the view directly:
<input #myname>
@ViewChild('myname') input;
element
ngAfterViewInit() {
console.log(this.input.nativeElement.value);
}
@ViewChildren('var1,var2,var3')
). <ng-content>
projected elements).descendants
@ContentChildren()
is the only one that allows to also query for descendants
@ContentChildren(SomeTypeOrVarName, {descendants: true}) someField;
{descendants: true}
should be the default but is not in 2.0.0 final and it's considered a bug
This was fixed in 2.0.1
read
If there are a component and directives the read
parameter allows to specify which instance should be returned.
For example ViewContainerRef
that is required by dynamically created components instead of the default ElementRef
@ViewChild('myname', { read: ViewContainerRef }) target;
subscribe changes
Even though view children are only set when ngAfterViewInit()
is called and content children are only set when ngAfterContentInit()
is called, if you want to subscribe to changes of the query result, it should be done in ngOnInit()
https://github.com/angular/angular/issues/9689#issuecomment-229247134
@ViewChildren(SomeType) viewChildren;
@ContentChildren(SomeType) contentChildren;
ngOnInit() {
this.viewChildren.changes.subscribe(changes => console.log(changes));
this.contentChildren.changes.subscribe(changes => console.log(changes));
}
direct DOM access
can only query DOM elements, but not components or directive instances:
export class MyComponent {
constructor(private elRef:ElementRef) {}
ngAfterViewInit() {
var div = this.elRef.nativeElement.querySelector('div');
console.log(div);
}
// for transcluded content
ngAfterContentInit() {
var div = this.elRef.nativeElement.querySelector('div');
console.log(div);
}
}
get arbitrary projected content
There are a few options
Using the host : guest
format you can do any of the following:
volumes:
# Just specify a path and let the Engine create a volume
- /var/lib/mysql
# Specify an absolute path mapping
- /opt/data:/var/lib/mysql
# Path on the host, relative to the Compose file
- ./cache:/tmp/cache
# User-relative path
- ~/configs:/etc/configs/:ro
# Named volume
- datavolume:/var/lib/mysql
As of docker-compose v3.2 you can use long syntax which allows the configuration of additional fields that can be expressed in the short form such as mount type
(volume, bind or tmpfs) and read_only
.
version: "3.2"
services:
web:
image: nginx:alpine
ports:
- "80:80"
volumes:
- type: volume
source: mydata
target: /data
volume:
nocopy: true
- type: bind
source: ./static
target: /opt/app/static
networks:
webnet:
volumes:
mydata:
Check out https://docs.docker.com/compose/compose-file/#long-syntax-3 for more info.
in bootstrap 3.0 :
Set heights using classes like .input-lg, and set widths using grid column classes like .col-lg-*.
Example:
<div class="row">
<div class="col-xs-2">
<input type="text" class="form-control" placeholder=".col-xs-2">
</div>
<div class="col-xs-3">
<input type="text" class="form-control" placeholder=".col-xs-3">
</div>
<div class="col-xs-4">
<input type="text" class="form-control" placeholder=".col-xs-4">
</div>
</div>
The original question addresses a specific narrow use case. For those who need more generic answers here are some examples:
Given the dataframe below:
import pandas as pd
import numpy as np
df = pd.DataFrame([['dog', 'hound', 5],
['cat', 'ragdoll', 1]],
columns=['animal', 'type', 'age'])
In[1]:
Out[1]:
animal type age
----------------------
0 dog hound 5
1 cat ragdoll 1
Below we are adding a new description
column as a concatenation of other columns by using the +
operation which is overridden for series. Fancy string formatting, f-strings etc won't work here since the +
applies to scalars and not 'primitive' values:
df['description'] = 'A ' + df.age.astype(str) + ' years old ' \
+ df.type + ' ' + df.animal
In [2]: df
Out[2]:
animal type age description
-------------------------------------------------
0 dog hound 5 A 5 years old hound dog
1 cat ragdoll 1 A 1 years old ragdoll cat
We get 1 years
for the cat (instead of 1 year
) which we will be fixing below using conditionals.
Here we are replacing the original animal
column with values from other columns, and using np.where
to set a conditional substring based on the value of age
:
# append 's' to 'age' if it's greater than 1
df.animal = df.animal + ", " + df.type + ", " + \
df.age.astype(str) + " year" + np.where(df.age > 1, 's', '')
In [3]: df
Out[3]:
animal type age
-------------------------------------
0 dog, hound, 5 years hound 5
1 cat, ragdoll, 1 year ragdoll 1
A more flexible approach is to call .apply()
on an entire dataframe rather than on a single column:
def transform_row(r):
r.animal = 'wild ' + r.type
r.type = r.animal + ' creature'
r.age = "{} year{}".format(r.age, r.age > 1 and 's' or '')
return r
df.apply(transform_row, axis=1)
In[4]:
Out[4]:
animal type age
----------------------------------------
0 wild hound dog creature 5 years
1 wild ragdoll cat creature 1 year
In the code above the transform_row(r)
function takes a Series
object representing a given row (indicated by axis=1
, the default value of axis=0
will provide a Series
object for each column). This simplifies processing since we can access the actual 'primitive' values in the row using the column names and have visibility of other cells in the given row/column.
(I posted earlier, and @Marc Gravell has corrected me)
Here's a demonstration of the difference:
static void Main(string[] args) {
try {
ThrowException1(); // line 19
} catch (Exception x) {
Console.WriteLine("Exception 1:");
Console.WriteLine(x.StackTrace);
}
try {
ThrowException2(); // line 25
} catch (Exception x) {
Console.WriteLine("Exception 2:");
Console.WriteLine(x.StackTrace);
}
}
private static void ThrowException1() {
try {
DivByZero(); // line 34
} catch {
throw; // line 36
}
}
private static void ThrowException2() {
try {
DivByZero(); // line 41
} catch (Exception ex) {
throw ex; // line 43
}
}
private static void DivByZero() {
int x = 0;
int y = 1 / x; // line 49
}
and here is the output:
Exception 1:
at UnitTester.Program.DivByZero() in <snip>\Dev\UnitTester\Program.cs:line 49
at UnitTester.Program.ThrowException1() in <snip>\Dev\UnitTester\Program.cs:line 36
at UnitTester.Program.TestExceptions() in <snip>\Dev\UnitTester\Program.cs:line 19
Exception 2:
at UnitTester.Program.ThrowException2() in <snip>\Dev\UnitTester\Program.cs:line 43
at UnitTester.Program.TestExceptions() in <snip>\Dev\UnitTester\Program.cs:line 25
You can see that in Exception 1, the stack trace goes back to the DivByZero()
method, whereas in Exception 2 it does not.
Take note, though, that the line number shown in ThrowException1()
and ThrowException2()
is the line number of the throw
statement, not the line number of the call to DivByZero()
, which probably makes sense now that I think about it a bit...
Exception 1:
at ConsoleAppBasics.Program.ThrowException1()
at ConsoleAppBasics.Program.Main(String[] args)
Exception 2:
at ConsoleAppBasics.Program.ThrowException2()
at ConsoleAppBasics.Program.Main(String[] args)
Is it maintains the original stackTrace in debug mode only?
(Assuming C, C++, Java, JavaScript)
|
and &
are bitwise operators while ||
and &&
are logical operators. Usually you'd want to use ||
and &&
for if statements and loops and such (i.e. for your examples above). The bitwise operators are for setting and checking bits within bitmasks.
I had this issue when converting an older project to use a new version of Visual Studio. Upon conversion, the project target framework was set to 2.0
I was able to solve this issue by changing the target framework to be 3.5.
Lambda expressions, even captured ones, can be handled as a function pointer (pointer to member function).
It is tricky because an lambda expression is not a simple function. It is actually an object with an operator().
When you are creative, you can use this! Think of an "function" class in style of std::function. If you save the object you also can use the function pointer.
To use the function pointer, you can use the following:
int first = 5;
auto lambda = [=](int x, int z) {
return x + z + first;
};
int(decltype(lambda)::*ptr)(int, int)const = &decltype(lambda)::operator();
std::cout << "test = " << (lambda.*ptr)(2, 3) << std::endl;
To build a class that can start working like a "std::function", first you need a class/struct than can store object and function pointer. Also you need an operator() to execute it:
// OT => Object Type
// RT => Return Type
// A ... => Arguments
template<typename OT, typename RT, typename ... A>
struct lambda_expression {
OT _object;
RT(OT::*_function)(A...)const;
lambda_expression(const OT & object)
: _object(object), _function(&decltype(_object)::operator()) {}
RT operator() (A ... args) const {
return (_object.*_function)(args...);
}
};
With this you can now run captured, non-captured lambdas, just like you are using the original:
auto capture_lambda() {
int first = 5;
auto lambda = [=](int x, int z) {
return x + z + first;
};
return lambda_expression<decltype(lambda), int, int, int>(lambda);
}
auto noncapture_lambda() {
auto lambda = [](int x, int z) {
return x + z;
};
return lambda_expression<decltype(lambda), int, int, int>(lambda);
}
void refcapture_lambda() {
int test;
auto lambda = [&](int x, int z) {
test = x + z;
};
lambda_expression<decltype(lambda), void, int, int>f(lambda);
f(2, 3);
std::cout << "test value = " << test << std::endl;
}
int main(int argc, char **argv) {
auto f_capture = capture_lambda();
auto f_noncapture = noncapture_lambda();
std::cout << "main test = " << f_capture(2, 3) << std::endl;
std::cout << "main test = " << f_noncapture(2, 3) << std::endl;
refcapture_lambda();
system("PAUSE");
return 0;
}
This code works with VS2015
Update 04.07.17:
template <typename CT, typename ... A> struct function
: public function<decltype(&CT::operator())(A...)> {};
template <typename C> struct function<C> {
private:
C mObject;
public:
function(const C & obj)
: mObject(obj) {}
template<typename... Args> typename
std::result_of<C(Args...)>::type operator()(Args... a) {
return this->mObject.operator()(a...);
}
template<typename... Args> typename
std::result_of<const C(Args...)>::type operator()(Args... a) const {
return this->mObject.operator()(a...);
}
};
namespace make {
template<typename C> auto function(const C & obj) {
return ::function<C>(obj);
}
}
int main(int argc, char ** argv) {
auto func = make::function([](int y, int x) { return x*y; });
std::cout << func(2, 4) << std::endl;
system("PAUSE");
return 0;
}
In order to get CurrentUserId in Asp.net Identity 2.0, at first import Microsoft.AspNet.Identity
:
C#:
using Microsoft.AspNet.Identity;
VB.NET:
Imports Microsoft.AspNet.Identity
And then call User.Identity.GetUserId()
everywhere you want:
strCurrentUserId = User.Identity.GetUserId()
This method returns current user id as defined datatype for userid in database (the default is String
).
Check whether the particular port is open on the server to serve the client or not?
in Ubuntu or Linux distro
sudo ufw enable
sudo ufw allow 5000/tcp //allow the server to handle the request on port 5000
Configure the application to handle remote requests
app.run(host='0.0.0.0' , port=5000)
python3 app.py & #run application in background
You can do it without any interruption, with the new (Git 2.0 Q2 2014) setting gc.autodetach
.
See commit 4c4ac4d and commit 9f673f9 (Nguy?n Thái Ng?c Duy, aka pclouds):
gc --auto
takes time and can block the user temporarily (but not any less annoyingly).
Make it run in background on systems that support it.
The only thing lost with running in background is printouts. Butgc output
is not really interesting.
You can keep it in foreground by changinggc.autodetach
.
Since that 2.0 release, there was a bug though: git 2.7 (Q4 2015) will make sure to not lose the error message.
See commit 329e6e8 (19 Sep 2015) by Nguy?n Thái Ng?c Duy (pclouds
).
(Merged by Junio C Hamano -- gitster
-- in commit 076c827, 15 Oct 2015)
gc
: save log from daemonizedgc --auto
and print it next timeWhile commit 9f673f9 (
gc
: config option for running--auto
in background - 2014-02-08) helps reduce some complaints about 'gc --auto
' hogging the terminal, it creates another set of problems.The latest in this set is, as the result of daemonizing,
stderr
is closed and all warnings are lost. This warning at the end ofcmd_gc()
is particularly important because it tells the user how to avoid "gc --auto
" running repeatedly.
Because stderr is closed, the user does not know, naturally they complain about 'gc --auto
' wasting CPU.Daemonized
gc
now savesstderr
to$GIT_DIR/gc.log
.
Followinggc --auto
will not run andgc.log
printed out until the user removesgc.log
.
For case-insensitive string search, use index
(or rindex
) in combination with fc
. This example expands on the answer by Eugene Yarmash:
use feature qw( fc );
my $str = "Abc";
my $substr = "aB";
print "found" if index( fc $str, fc $substr ) != -1;
# Prints: found
print "found" if rindex( fc $str, fc $substr ) != -1;
# Prints: found
$str = "Abc";
$substr = "bA";
print "found" if index( fc $str, fc $substr ) != -1;
# Prints nothing
print "found" if rindex( fc $str, fc $substr ) != -1;
# Prints nothing
Both index
and rindex
return -1
if the substring is not found.
And fc
returns a casefolded version of its string argument, and should be used here instead of the (more familiar) uc
or lc
. Remember to enable this function, for example with use feature qw( fc );
.
A class method typically either creates a new instance of the class or retrieves some global properties of the class. Class methods do not operate on an instance or have any access to instance variable.
An instance method operates on a particular instance of the class. For example, the accessors method that you implemented are all instance methods. You use them to set or get the instance variables of a particular object.
To invoke an instance method, you send the message to an instance of the class.
To invoke a class method, you send the message to the class directly.
Source: IOS - Objective-C - Class Methods And Instance Methods
$(document).ready(function()
{
$('#yourtext').keyup(function()
{
$(this).val($(this).val().toUpperCase());
});
});
<textarea id="yourtext" rows="5" cols="20"></textarea>
If this occurs while you check your package (R CMD check), take a look at your NAMESPACE.
You can solve this by adding the following statement to the NAMESPACE:
exportPattern("^[^\\\\.]")
This exports everything that doesn't start with a dot ("."). This allows you to have your hidden functions, starting with a dot:
.myHiddenFunction <- function(x) cat("my hidden function")
I have had this problem on multiple projects converting Excel 2000 to 2010. Here is what I found which seems to be working. I made two changes, but not sure which caused the success:
1) I changed how I closed and saved the file (from close & save = true to save as the same file name and close the file:
...
Dim oFile As Object ' File being processed
...
[Where the error happens - where aArray(i) is just the name of an Excel.xlsb file]
Set oFile = GetObject(aArray(i))
...
'oFile.Close SaveChanges:=True - OLD CODE WHICH ERROR'D
'New Code
oFile.SaveAs Filename:=oFile.Name
oFile.Close SaveChanges:=False
2) I went back and looked for all of the .range in the code and made sure it was the full construct..
Application.Workbooks("workbook name").Worksheets("worksheet name").Range("G19").Value
or (not 100% sure if this is correct syntax, but this is the 'effort' i made)
ActiveSheet.Range("A1").Select
I had a problem like this before. I don't think tr
can take a border styling directly. My workaround was to style the td
s in the row:
<tr class="border_bottom">
CSS:
tr.border_bottom td {
border-bottom: 1px solid black;
}
You can "link" a code file between two projects. Right click your project, choose Add
-> Existing item
, and then click the down arrow next to the Add
button:
In my experience linking is simpler than creating a library. Linked code results in a single executable with a single version.
You can try this:
<form action="/home">_x000D_
_x000D_
<input type="submit" value="cancel">_x000D_
_x000D_
<input type="submit" value="login" formaction="/login">_x000D_
<input type="submit" value="signup" formaction="/signup">_x000D_
_x000D_
</form>
_x000D_
__PRETTY_FUNCTION__
handles C++ features: classes, namespaces, templates and overload
main.cpp
#include <iostream>
namespace N {
class C {
public:
template <class T>
static void f(int i) {
(void)i;
std::cout << "__func__ " << __func__ << std::endl
<< "__FUNCTION__ " << __FUNCTION__ << std::endl
<< "__PRETTY_FUNCTION__ " << __PRETTY_FUNCTION__ << std::endl;
}
template <class T>
static void f(double f) {
(void)f;
std::cout << "__PRETTY_FUNCTION__ " << __PRETTY_FUNCTION__ << std::endl;
}
};
}
int main() {
N::C::f<char>(1);
N::C::f<void>(1.0);
}
Compile and run:
g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic -o main.out main.cpp
./main.out
Output:
__func__ f
__FUNCTION__ f
__PRETTY_FUNCTION__ static void N::C::f(int) [with T = char]
__PRETTY_FUNCTION__ static void N::C::f(double) [with T = void]
You may also be interested in stack traces with function names: print call stack in C or C++
Tested in Ubuntu 19.04, GCC 8.3.0.
C++20 std::source_location::function_name
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1208r5.pdf went into C++20, so we have yet another way to do it.
The documentation says:
constexpr const char* function_name() const noexcept;
6 Returns: If this object represents a position in the body of a function, returns an implementation-defined NTBS that should correspond to the function name. Otherwise, returns an empty string.
where NTBS means "Null Terminated Byte String".
I'll give it a try when support arrives to GCC, GCC 9.1.0 with g++-9 -std=c++2a
still doesn't support it.
https://en.cppreference.com/w/cpp/utility/source_location claims usage will be like:
#include <iostream>
#include <string_view>
#include <source_location>
void log(std::string_view message,
const std::source_location& location std::source_location::current()
) {
std::cout << "info:"
<< location.file_name() << ":"
<< location.line() << ":"
<< location.function_name() << " "
<< message << '\n';
}
int main() {
log("Hello world!");
}
Possible output:
info:main.cpp:16:main Hello world!
so note how this returns the caller information, and is therefore perfect for usage in logging, see also: Is there a way to get function name inside a C++ function?
Python’s raw strings are just a way to tell the Python interpreter that it should interpret backslashes as literal slashes. If you read strings entered by the user, they are already past the point where they could have been raw. Also, user input is most likely read in literally, i.e. “raw”.
This means the interpreting happens somewhere else. But if you know that it happens, why not escape the backslashes for whatever is interpreting it?
s = s.replace("\\", "\\\\")
(Note that you can't do r"\"
as “a raw string cannot end in a single backslash”, but I could have used r"\\"
as well for the second argument.)
If that doesn’t work, your user input is for some arcane reason interpreting the backslashes, so you’ll need a way to tell it to stop that.
This type of the function belongs to element operators. Some useful element operators are defined below.
We use element operators when we need to select a single element from a sequence based on a certain condition. Here is an example.
List<int> items = new List<int>() { 8, 5, 2, 4, 2, 6, 9, 2, 10 };
First() operator returns the first element of a sequence after satisfied the condition. If no element is found then it will throw an exception.
int result = items.Where(item => item == 2).First();
FirstOrDefault() operator returns the first element of a sequence after satisfied the condition. If no element is found then it will return default value of that type.
int result1 = items.Where(item => item == 2).FirstOrDefault();
You can also post runnable using the view from any other thread. But be sure that the view is not null:
tView.post(new Runnable() {
@Override
public void run() {
tView.setText("Success");
}
});
According to the Documentation:
"boolean post (Runnable action) Causes the Runnable to be added to the message queue. The runnable will be run on the user interface thread."
there is few things that you can do
SELECT GROUP_CONCAT(CAST(name AS CHAR))
FROM product
WHERE id IN (12345,12346,12347)
If you want to order by the query you can order by cast as well like below
SELECT GROUP_CONCAT(name ORDER BY name))
FROM product
WHERE id IN (12345,12346,12347)
as it says on this blog
The only way to prevent all after_save callbacks is to have the first one return false.
Perhaps you could try something like (untested):
class MyModel < ActiveRecord::Base
attr_accessor :skip_after_save
def after_save
return false if @skip_after_save
... blah blah ...
end
end
...
m = MyModel.new # ... etc etc
m.skip_after_save = true
m.save
This might be redundant but the above most voted answer says .then(function (success)
and that didn't work for me as of Angular version 1.5.8
. Instead use response
then inside the block response.data
got me my json data I was looking for.
$http({
method: 'get',
url: 'data/data.json'
}).then(function (response) {
console.log(response, 'res');
data = response.data;
},function (error){
console.log(error, 'can not get data.');
});
Just my 2 cents. The following command fails if called from batch file (Windows 7) placed on pendrive:
xcopy /s /e /i %cd%Ala C:\KS\Ala
But this does the job:
xcopy /s /e /i %~dp0Ala C:\KS\Ala
I used the Dahnark's code but I also need to change the ToolBar background:
if (dark_ui) {
this.setTheme(R.style.Theme_Dark);
if (Build.VERSION.SDK_INT >= 21) {
getWindow().setNavigationBarColor(getResources().getColor(R.color.Theme_Dark_primary));
getWindow().setStatusBarColor(getResources().getColor(R.color.Theme_Dark_primary_dark));
}
} else {
this.setTheme(R.style.Theme_Light);
}
setContentView(R.layout.activity_main);
toolbar = (Toolbar) findViewById(R.id.app_bar);
if(dark_ui) {
toolbar.setBackgroundColor(getResources().getColor(R.color.Theme_Dark_primary));
}
Try this to create the user:
CREATE USER 'user'@'hostname';
Try this to give it access to the database dbTest
:
GRANT ALL PRIVILEGES ON dbTest.* To 'user'@'hostname' IDENTIFIED BY 'password';
If you are running the code/site accessing MySQL on the same machine, hostname would be localhost.
Now, the break down.
GRANT
- This is the command used to create users and grant rights to databases, tables, etc.
ALL PRIVILEGES
- This tells it the user will have all standard privileges. This does not include the privilege to use the GRANT command however.
dbtest.*
- This instructions MySQL to apply these rights for use in the entire dbtest database. You can replace the * with specific table names or store routines if you wish.
TO 'user'@'hostname'
- 'user' is the username of the user account you are creating. Note: You must have the single quotes in there. 'hostname' tells MySQL what hosts the user can connect from. If you only want it from the same machine, use localhost
IDENTIFIED BY 'password'
- As you would have guessed, this sets the password for that user.
What about Microsoft's Visual Studio Express? http://www.microsoft.com/express/default.aspx SQL Server Express is also at that link...
var Line = textBox1.Text + "," + textBox2.Text;
File.AppendAllText(@"C:\Documents\m2.txt", Line + Environment.NewLine);
If you really want to use Xcode on linux you could get Virtual Box and install Hackintosh on a VM. Edit: Virtual Box Guest Additions is not supported with MacOS Movaje. You will want to use VMware
Here's Herb Sutter's take
Guideline: Don’t pass a smart pointer as a function parameter unless you want to use or manipulate the smart pointer itself, such as to share or transfer ownership.
Guideline: Express that a function will store and share ownership of a heap object using a by-value shared_ptr parameter.
Guideline: Use a non-const shared_ptr& parameter only to modify the shared_ptr. Use a const shared_ptr& as a parameter only if you’re not sure whether or not you’ll take a copy and share ownership; otherwise use widget* instead (or if not nullable, a widget&).
Go to Server tab and Right Click you will see the View Output Log.
Netbeans --> Your Server --> RightClick --> View Output
In Chrome (v.56 is what I'm using but I AFAIK this applies generally) you can set title=" " (a single space) and the automatic title text will be overridden and nothing displayed. (If you try to make it just an empty string, though, it will treat it as if it isn't set and add that automatic tooltip text you've been getting).
I haven't tested this in other browsers, because I found it whilst making a Google Chrome Extension. I'm sure once I port things to other browsers, though, I'll see if it works in them (if even necessary), too.
You can use:
$redirectURL = curl_getinfo($ch,CURLINFO_REDIRECT_URL);
I didn't really like any of these answers as a whole. If you have a class (say printableArea) and have that as an immediate child of body, then you can do something like this in your print CSS:
body > *:not(.printableArea) {
display: none;
}
//Not needed if already showing
body > .printableArea {
display: block;
}
For those looking for printableArea in another place, you would need to make sure the parents of printableArea are shown:
body > *:not(.parentDiv),
.parentDiv > *:not(.printableArea) {
display: none;
}
//Not needed if already showing
body > .printableArea {
display: block;
}
Using the visibility can cause a lot of spacing issues and blank pages. This is because the visibility maintains the elements space, just makes it hidden, where as display removes it and allows other elements to take up its space.
The reason why this solution works is that you are not grabbing all elements, just the immediate children of body and hiding them. The other solutions below with display css, hide all the elements, which effects everything inside of printableArea content.
I wouldn't suggest javascript as you would need to have a print button that the user clicks and the standard browser print buttons wouldn't have the same effect. If you really need to do that, what I would do is store the html of body, remove all unwanted elements, print, then add the html back. As mentioned though, I would avoid this if you can and use a CSS option like above.
NOTE: You can add whatever CSS into the print CSS using inline styles:
<style type="text/css">
@media print {
//styles here
}
</style>
Or like I usually use is a link tag:
<link rel="stylesheet" type="text/css" media="print" href="print.css" />
Check out JSON2HTML http://json2html.com/ plugin for jQuery. It allows you to specify a transform that would convert your JSON object to HTML template. Use builder on http://json2html.com/ to get json transform object for any desired html template. In your case, it would be a table with row having following transform.
Example:
var transform = {"tag":"table", "children":[
{"tag":"tbody","children":[
{"tag":"tr","children":[
{"tag":"td","html":"${name}"},
{"tag":"td","html":"${age}"}
]}
]}
]};
var data = [
{'name':'Bob','age':40},
{'name':'Frank','age':15},
{'name':'Bill','age':65},
{'name':'Robert','age':24}
];
$('#target_div').html(json2html.transform(data,transform));
I would use:
<style>
.all {
display: table;
}
.maincontent {
float: left;
width: 60%;
}
.sidebox {
float: right;
width: 30%;
}
<div class="all">
<div class="maincontent">
MainContent
</div>
<div class="sidebox">
SideboxContent
</div>
</div>
It's the first time I use this 'code tool' from overflow... but shoul do it by now...
Find the index of the columns you want to drop using which
. Give these indexes a negative sign (*-1
). Then subset on those values, which will remove them from the dataframe. This is an example.
DF <- data.frame(one=c('a','b'), two=c('c', 'd'), three=c('e', 'f'), four=c('g', 'h'))
DF
# one two three four
#1 a d f i
#2 b e g j
DF[which(names(DF) %in% c('two','three')) *-1]
# one four
#1 a g
#2 b h
OMG, I solved the same problem 5 minutes ago. I spent several hours to find a solution. At first sight disabling antivirus solved problem on Windows. But then I noticed issue on other linux pc with no antivirus. No errors in nginx logs. My uwsgi
showed something about "Broken pipe" but not on all requests.
Know what? It was no space left on device, which I found when restarted server on Database log, and df
approved this. Only explanation about why antivirus was solved this is that it prevents browser caching (it should check every request), but browser with some strange behavior can simply ignore bad response and show cached responses.
The embedded code of youtube has autoplay off by default. Simply add autoplay=1
at the end of "src" attribute. For example:
<iframe src="http://www.youtube.com/embed/xzvScRnF6MU?autoplay=1" width="960" height="447" frameborder="0" allowfullscreen></iframe>
I was having the same issue in Workbench plus insert query from C# application. In my case using ISO format solve the issue
string value = date.ToString("yyyy-MM-dd HH:mm:ss");
Open a command prompt and type one of the following lines according to your Visual Studio version and Operating System Architecture :
VS 2008 on 32bit Windows :
"%ProgramFiles%\Microsoft SDKs\Windows\v6.0A\bin\sn.exe" -T <assemblyname>
VS 2008 on 64bit Windows :
"%ProgramFiles(x86)%\Microsoft SDKs\Windows\v6.0A\bin\sn.exe" -T <assemblyname>
VS 2010 on 32bit Windows :
"%ProgramFiles%\Microsoft SDKs\Windows\v7.0A\bin\sn.exe" -T <assemblyname>
VS 2010 on 64bit Windows :
"%ProgramFiles(x86)%\Microsoft SDKs\Windows\v7.0A\bin\sn.exe" -T <assemblyname>
VS 2012 on 32bit Windows :
"%ProgramFiles%\Microsoft SDKs\Windows\v8.0A\bin\NETFX 4.0 Tools\sn.exe" -T <assemblyname>
VS 2012 on 64bit Windows :
"%ProgramFiles(x86)%\Microsoft SDKs\Windows\v8.0A\bin\NETFX 4.0 Tools\sn.exe" -T <assemblyname>
VS 2015 on 64bit Windows :
"%ProgramFiles(x86)%\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools\sn.exe" -T <assemblyname>
Note that for the versions VS2012+, sn.exe application isn't anymore in bin but in a sub-folder. Also, note that for 64bit you need to specify (x86) folder.
If you prefer to use Visual Studio command prompt, just type :
sn -T <assembly>
where <assemblyname>
is a full file path to the assembly you're interested in, surrounded by quotes if it has spaces.
You can add this as an external tool in VS, as shown here:
http://blogs.msdn.com/b/miah/archive/2008/02/19/visual-studio-tip-get-public-key-token-for-a-stong-named-assembly.aspx
It may be the version problem like you download the project of .Net framework 2.0 and want to open it into the VS2008 then you will need to upgrade to the latest version and VS will create the Backup of the folder in same root directory.You will get the answer here.
You can do this using OPENROWSET as suggested in this answer. Reposting Slogmeister Extrarodinare answer:
Use T-SQL
INSERT INTO OPENROWSET ('Microsoft.ACE.OLEDB.12.0','Text;Database=D:\;HDR=YES;FMT=Delimited','SELECT * FROM [FileName.csv]')
SELECT Field1, Field2, Field3 FROM DatabaseName
But, there are couple of caveats:
You need to have the Microsoft.ACE.OLEDB.12.0 provider available. The Jet 4.0 provider will work, too, but it's ancient, so I used this one instead.
The .CSV file will have to exist already. If you're using headers (HDR=YES), make sure the first line of the .CSV file is a delimited list of all the fields.
Based on your question, I believe the answer is how to trigger a blur, not just (or even) set the event:
$('#textArea').trigger('blur');
php
supports c style date functions. You can add or substract date-periods with English-language style phrases via the strtotime
function. examples...
$Today=date('y:m:d');
// add 3 days to date
$NewDate=Date('y:m:d', strtotime('+3 days'));
// subtract 3 days from date
$NewDate=Date('y:m:d', strtotime('-3 days'));
// PHP returns last sunday's date
$NewDate=Date('y:m:d', strtotime('Last Sunday'));
// One week from last sunday
$NewDate=Date('y:m:d', strtotime('+7 days Last Sunday'));
or
<select id="date_list" class="form-control" style="width:100%;">
<?php
$max_dates = 15;
$countDates = 0;
while ($countDates < $max_dates) {
$NewDate=Date('F d, Y', strtotime("+".$countDates." days"));
echo "<option>" . $NewDate . "</option>";
$countDates += 1;
}
?>
In your project settings.py file,set ALLOWED_HOSTS like this :
ALLOWED_HOSTS = ['62.63.141.41', 'namjoosadr.com']
and then restart your apache. in ubuntu:
/etc/init.d/apache2 restart
I have had the same problem. I am using windows 7 and this should also work for windows 8. The services responsible for the TNS listener and database were stopped when I looked in the Task Manager.
1: Hit Ctrl-Alt-Del and select "Start Task Manager".
From there go to the "Services" tab.
There are 5 services that need to be running for the database to be accessed correctly.
In the list below "databasename" is the database name you assigned during creation without the quotes.
I am also using database 11g, if you are using another type those fields would be different below. the * after home is the home install, if you have more than 1 database there would be home1, and home2
These are the 5 services
If any of these services are stopped right click on them and start them. After they have all started go back into SQL developer and re-try the connection and it should work.